diff options
Diffstat (limited to 'net/tipc')
43 files changed, 1119 insertions, 3655 deletions
diff --git a/net/tipc/Kconfig b/net/tipc/Kconfig index b74f78d0c033..0436927369f3 100644 --- a/net/tipc/Kconfig +++ b/net/tipc/Kconfig @@ -29,28 +29,6 @@ config TIPC_ADVANCED Saying Y here will open some advanced configuration for TIPC. Most users do not need to bother; if unsure, just say N. -config TIPC_ZONES - int "Maximum number of zones in a network" - depends on TIPC_ADVANCED - range 1 255 - default "3" - help - Specifies how many zones can be supported in a TIPC network. - Can range from 1 to 255 zones; default is 3. - - Setting this to a smaller value saves some memory; - setting it to a higher value allows for more zones. - -config TIPC_CLUSTERS - int "Maximum number of clusters in a zone" - depends on TIPC_ADVANCED - range 1 1 - default "1" - help - Specifies how many clusters can be supported in a TIPC zone. - - *** Currently TIPC only supports a single cluster per zone. *** - config TIPC_NODES int "Maximum number of nodes in a cluster" depends on TIPC_ADVANCED @@ -72,7 +50,7 @@ config TIPC_PORTS Specifies how many ports can be supported by a node. Can range from 127 to 65535 ports; default is 8191. - Setting this to a smaller value saves some memory, + Setting this to a smaller value saves some memory, setting it to higher allows for more ports. config TIPC_LOG @@ -89,12 +67,15 @@ config TIPC_LOG managed remotely via TIPC. config TIPC_DEBUG - bool "Enable debug messages" + bool "Enable debugging support" default n help - This enables debugging of TIPC. + Saying Y here enables TIPC debugging capabilities used by developers. + Most users do not need to bother; if unsure, just say N. - Only say Y here if you are having trouble with TIPC. It will - enable the display of detailed information about what is going on. + Enabling debugging support causes TIPC to display data about its + internal state when certain abnormal conditions occur. It also + makes it easy for developers to capture additional information of + interest using the dbg() or msg_dbg() macros. endif # TIPC diff --git a/net/tipc/Makefile b/net/tipc/Makefile index dceb7027946c..521d24d04ab2 100644 --- a/net/tipc/Makefile +++ b/net/tipc/Makefile @@ -4,10 +4,10 @@ obj-$(CONFIG_TIPC) := tipc.o -tipc-y += addr.o bcast.o bearer.o config.o cluster.o \ +tipc-y += addr.o bcast.o bearer.o config.o \ core.o handler.o link.o discover.o msg.o \ name_distr.o subscr.o name_table.o net.o \ netlink.o node.o node_subscr.o port.o ref.o \ - socket.o user_reg.o zone.o dbg.o eth_media.o + socket.o log.o eth_media.o # End of file diff --git a/net/tipc/addr.c b/net/tipc/addr.c index c048543ffbeb..88463d9a6f12 100644 --- a/net/tipc/addr.c +++ b/net/tipc/addr.c @@ -35,16 +35,7 @@ */ #include "core.h" -#include "dbg.h" #include "addr.h" -#include "zone.h" -#include "cluster.h" -#include "net.h" - -u32 tipc_get_addr(void) -{ - return tipc_own_addr; -} /** * tipc_addr_domain_valid - validates a network domain address @@ -62,14 +53,8 @@ int tipc_addr_domain_valid(u32 addr) u32 z = tipc_zone(addr); u32 max_nodes = tipc_max_nodes; - if (is_slave(addr)) - max_nodes = LOWEST_SLAVE + tipc_max_slaves; if (n > max_nodes) return 0; - if (c > tipc_max_clusters) - return 0; - if (z > tipc_max_zones) - return 0; if (n && (!z || !c)) return 0; @@ -89,7 +74,7 @@ int tipc_addr_domain_valid(u32 addr) int tipc_addr_node_valid(u32 addr) { - return (tipc_addr_domain_valid(addr) && tipc_node(addr)); + return tipc_addr_domain_valid(addr) && tipc_node(addr); } int tipc_in_scope(u32 domain, u32 addr) diff --git a/net/tipc/addr.h b/net/tipc/addr.h index c1cc5724d8cc..2490fadd0caf 100644 --- a/net/tipc/addr.h +++ b/net/tipc/addr.h @@ -37,36 +37,11 @@ #ifndef _TIPC_ADDR_H #define _TIPC_ADDR_H -static inline u32 own_node(void) -{ - return tipc_node(tipc_own_addr); -} - -static inline u32 own_cluster(void) -{ - return tipc_cluster(tipc_own_addr); -} - -static inline u32 own_zone(void) -{ - return tipc_zone(tipc_own_addr); -} - static inline int in_own_cluster(u32 addr) { return !((addr ^ tipc_own_addr) >> 12); } -static inline int is_slave(u32 addr) -{ - return addr & 0x800; -} - -static inline int may_route(u32 addr) -{ - return(addr ^ tipc_own_addr) >> 11; -} - /** * addr_domain - convert 2-bit scope value to equivalent message lookup domain * diff --git a/net/tipc/bcast.c b/net/tipc/bcast.c index a008c6689305..70ab5ef48766 100644 --- a/net/tipc/bcast.c +++ b/net/tipc/bcast.c @@ -36,25 +36,14 @@ */ #include "core.h" -#include "msg.h" -#include "dbg.h" #include "link.h" -#include "net.h" -#include "node.h" #include "port.h" -#include "addr.h" -#include "node_subscr.h" -#include "name_distr.h" -#include "bearer.h" -#include "name_table.h" #include "bcast.h" #define MAX_PKT_DEFAULT_MCAST 1500 /* bcast link max packet size (fixed) */ #define BCLINK_WIN_DEFAULT 20 /* bcast link window size (default) */ -#define BCLINK_LOG_BUF_SIZE 0 - /* * Loss rate for incoming broadcast frames; used to test retransmission code. * Set to N to cause every N'th frame to be discarded; 0 => don't discard any. @@ -114,13 +103,19 @@ struct bclink { }; -static struct bcbearer *bcbearer = NULL; -static struct bclink *bclink = NULL; -static struct link *bcl = NULL; +static struct bcbearer *bcbearer; +static struct bclink *bclink; +static struct link *bcl; static DEFINE_SPINLOCK(bc_lock); +/* broadcast-capable node map */ +struct tipc_node_map tipc_bcast_nmap; + const char tipc_bclink_name[] = "broadcast-link"; +static void tipc_nmap_diff(struct tipc_node_map *nm_a, + struct tipc_node_map *nm_b, + struct tipc_node_map *nm_diff); static u32 buf_seqno(struct sk_buff *buf) { @@ -143,6 +138,19 @@ static void bcbuf_decr_acks(struct sk_buff *buf) } +static void bclink_set_last_sent(void) +{ + if (bcl->next_out) + bcl->fsm_msg_cnt = mod(buf_seqno(bcl->next_out) - 1); + else + bcl->fsm_msg_cnt = mod(bcl->next_out_no - 1); +} + +u32 tipc_bclink_get_last_sent(void) +{ + return bcl->fsm_msg_cnt; +} + /** * bclink_set_gap - set gap according to contents of current deferred pkt queue * @@ -171,7 +179,7 @@ static void bclink_set_gap(struct tipc_node *n_ptr) static int bclink_ack_allowed(u32 n) { - return((n % TIPC_MIN_LINK_WIN) == tipc_own_tag); + return (n % TIPC_MIN_LINK_WIN) == tipc_own_tag; } @@ -188,9 +196,8 @@ static void bclink_retransmit_pkt(u32 after, u32 to) struct sk_buff *buf; buf = bcl->first_out; - while (buf && less_eq(buf_seqno(buf), after)) { + while (buf && less_eq(buf_seqno(buf), after)) buf = buf->next; - } tipc_link_retransmit(bcl, buf, mod(to - after)); } @@ -216,9 +223,8 @@ void tipc_bclink_acknowledge(struct tipc_node *n_ptr, u32 acked) /* Skip over packets that node has previously acknowledged */ crs = bcl->first_out; - while (crs && less_eq(buf_seqno(crs), n_ptr->bclink.acked)) { + while (crs && less_eq(buf_seqno(crs), n_ptr->bclink.acked)) crs = crs->next; - } /* Update packets that node is now acknowledging */ @@ -237,8 +243,10 @@ void tipc_bclink_acknowledge(struct tipc_node *n_ptr, u32 acked) /* Try resolving broadcast link congestion, if necessary */ - if (unlikely(bcl->next_out)) + if (unlikely(bcl->next_out)) { tipc_link_push_queue(bcl); + bclink_set_last_sent(); + } if (unlikely(released && !list_empty(&bcl->waiting_ports))) tipc_link_wakeup_ports(bcl, 0); spin_unlock_bh(&bc_lock); @@ -272,7 +280,7 @@ static void bclink_send_nack(struct tipc_node *n_ptr) if (!less(n_ptr->bclink.gap_after, n_ptr->bclink.gap_to)) return; - buf = buf_acquire(INT_H_SIZE); + buf = tipc_buf_acquire(INT_H_SIZE); if (buf) { msg = buf_msg(buf); tipc_msg_init(msg, BCAST_PROTOCOL, STATE_MSG, @@ -395,7 +403,7 @@ int tipc_bclink_send_msg(struct sk_buff *buf) if (unlikely(res == -ELINKCONG)) buf_discard(buf); else - bcl->stats.sent_info++; + bclink_set_last_sent(); if (bcl->out_queue_size > bcl->stats.max_queue_sz) bcl->stats.max_queue_sz = bcl->out_queue_size; @@ -415,16 +423,14 @@ int tipc_bclink_send_msg(struct sk_buff *buf) void tipc_bclink_recv_pkt(struct sk_buff *buf) { #if (TIPC_BCAST_LOSS_RATE) - static int rx_count = 0; + static int rx_count; #endif struct tipc_msg *msg = buf_msg(buf); - struct tipc_node* node = tipc_node_find(msg_prevnode(msg)); + struct tipc_node *node = tipc_node_find(msg_prevnode(msg)); u32 next_in; u32 seqno; struct sk_buff *deferred; - msg_dbg(msg, "<BC<<<"); - if (unlikely(!node || !tipc_node_is_up(node) || !node->bclink.supported || (msg_mc_netid(msg) != tipc_net_id))) { buf_discard(buf); @@ -432,7 +438,6 @@ void tipc_bclink_recv_pkt(struct sk_buff *buf) } if (unlikely(msg_user(msg) == BCAST_PROTOCOL)) { - msg_dbg(msg, "<BCNACK<<<"); if (msg_destnode(msg) == tipc_own_addr) { tipc_node_lock(node); tipc_bclink_acknowledge(node, msg_bcast_ack(msg)); @@ -529,15 +534,6 @@ receive: tipc_node_unlock(node); } -u32 tipc_bclink_get_last_sent(void) -{ - u32 last_sent = mod(bcl->next_out_no - 1); - - if (bcl->next_out) - last_sent = mod(buf_seqno(bcl->next_out) - 1); - return last_sent; -} - u32 tipc_bclink_acks_missing(struct tipc_node *n_ptr) { return (n_ptr->bclink.supported && @@ -565,16 +561,17 @@ static int tipc_bcbearer_send(struct sk_buff *buf, if (likely(!msg_non_seq(buf_msg(buf)))) { struct tipc_msg *msg; - assert(tipc_cltr_bcast_nodes.count != 0); - bcbuf_set_acks(buf, tipc_cltr_bcast_nodes.count); + assert(tipc_bcast_nmap.count != 0); + bcbuf_set_acks(buf, tipc_bcast_nmap.count); msg = buf_msg(buf); msg_set_non_seq(msg, 1); msg_set_mc_netid(msg, tipc_net_id); + bcl->stats.sent_info++; } /* Send buffer over bearers until all targets reached */ - bcbearer->remains = tipc_cltr_bcast_nodes; + bcbearer->remains = tipc_bcast_nmap; for (bp_index = 0; bp_index < MAX_BEARERS; bp_index++) { struct bearer *p = bcbearer->bpairs[bp_index].primary; @@ -609,11 +606,13 @@ static int tipc_bcbearer_send(struct sk_buff *buf, bcbearer->remains = bcbearer->remains_new; } - /* Unable to reach all targets */ + /* + * Unable to reach all targets (indicate success, since currently + * there isn't code in place to properly block & unblock the + * pseudo-bearer used by the broadcast link) + */ - bcbearer->bearer.publ.blocked = 1; - bcl->stats.bearer_congs++; - return 1; + return TIPC_OK; } /** @@ -770,7 +769,6 @@ int tipc_bclink_init(void) bcbearer = kzalloc(sizeof(*bcbearer), GFP_ATOMIC); bclink = kzalloc(sizeof(*bclink), GFP_ATOMIC); if (!bcbearer || !bclink) { - nomem: warn("Multicast link creation failed, no memory\n"); kfree(bcbearer); bcbearer = NULL; @@ -795,14 +793,6 @@ int tipc_bclink_init(void) bcl->state = WORKING_WORKING; strlcpy(bcl->name, tipc_bclink_name, TIPC_MAX_LINK_NAME); - if (BCLINK_LOG_BUF_SIZE) { - char *pb = kmalloc(BCLINK_LOG_BUF_SIZE, GFP_ATOMIC); - - if (!pb) - goto nomem; - tipc_printbuf_init(&bcl->print_buf, pb, BCLINK_LOG_BUF_SIZE); - } - return 0; } @@ -811,8 +801,6 @@ void tipc_bclink_stop(void) spin_lock_bh(&bc_lock); if (bcbearer) { tipc_link_stop(bcl); - if (BCLINK_LOG_BUF_SIZE) - kfree(bcl->print_buf.buf); bcl = NULL; kfree(bclink); bclink = NULL; @@ -862,8 +850,9 @@ void tipc_nmap_remove(struct tipc_node_map *nm_ptr, u32 node) * @nm_diff: output node map A-B (i.e. nodes of A that are not in B) */ -void tipc_nmap_diff(struct tipc_node_map *nm_a, struct tipc_node_map *nm_b, - struct tipc_node_map *nm_diff) +static void tipc_nmap_diff(struct tipc_node_map *nm_a, + struct tipc_node_map *nm_b, + struct tipc_node_map *nm_diff) { int stop = ARRAY_SIZE(nm_a->map); int w; diff --git a/net/tipc/bcast.h b/net/tipc/bcast.h index e8c2b81658c7..51f8c5326ce6 100644 --- a/net/tipc/bcast.h +++ b/net/tipc/bcast.h @@ -51,6 +51,7 @@ struct tipc_node_map { u32 map[MAX_NODES / WSIZE]; }; +extern struct tipc_node_map tipc_bcast_nmap; #define PLSIZE 32 @@ -84,9 +85,6 @@ static inline int tipc_nmap_equal(struct tipc_node_map *nm_a, struct tipc_node_m return !memcmp(nm_a, nm_b, sizeof(*nm_a)); } -void tipc_nmap_diff(struct tipc_node_map *nm_a, struct tipc_node_map *nm_b, - struct tipc_node_map *nm_diff); - void tipc_port_list_add(struct port_list *pl_ptr, u32 port); void tipc_port_list_free(struct port_list *pl_ptr); diff --git a/net/tipc/bearer.c b/net/tipc/bearer.c index 52ae17b2583e..837b7a467885 100644 --- a/net/tipc/bearer.c +++ b/net/tipc/bearer.c @@ -36,17 +36,13 @@ #include "core.h" #include "config.h" -#include "dbg.h" #include "bearer.h" -#include "link.h" -#include "port.h" #include "discover.h" -#include "bcast.h" #define MAX_ADDR_STR 32 static struct media media_list[MAX_MEDIA]; -static u32 media_count = 0; +static u32 media_count; struct bearer tipc_bearers[MAX_BEARERS]; @@ -63,7 +59,7 @@ static int media_name_valid(const char *name) len = strlen(name); if ((len + 1) > TIPC_MAX_MEDIA_NAME) return 0; - return (strspn(name, tipc_alphabet) == len); + return strspn(name, tipc_alphabet) == len; } /** @@ -167,7 +163,6 @@ int tipc_register_media(u32 media_type, m_ptr->priority = bearer_priority; m_ptr->tolerance = link_tolerance; m_ptr->window = send_window_limit; - dbg("Media <%s> registered\n", name); res = 0; exit: write_unlock_bh(&tipc_net_lock); @@ -199,9 +194,8 @@ void tipc_media_addr_printf(struct print_buf *pb, struct tipc_media_addr *a) unchar *addr = (unchar *)&a->dev_addr; tipc_printf(pb, "UNKNOWN(%u)", media_type); - for (i = 0; i < (sizeof(*a) - sizeof(a->type)); i++) { + for (i = 0; i < (sizeof(*a) - sizeof(a->type)); i++) tipc_printf(pb, "-%02x", addr[i]); - } } } @@ -256,7 +250,8 @@ static int bearer_name_validate(const char *name, /* ensure all component parts of bearer name are present */ media_name = name_copy; - if ((if_name = strchr(media_name, ':')) == NULL) + if_name = strchr(media_name, ':'); + if (if_name == NULL) return 0; *(if_name++) = 0; media_len = if_name - media_name; @@ -288,9 +283,6 @@ static struct bearer *bearer_find(const char *name) struct bearer *b_ptr; u32 i; - if (tipc_mode != TIPC_NET_MODE) - return NULL; - for (i = 0, b_ptr = tipc_bearers; i < MAX_BEARERS; i++, b_ptr++) { if (b_ptr->active && (!strcmp(b_ptr->publ.name, name))) return b_ptr; @@ -559,8 +551,6 @@ restart: } b_ptr = &tipc_bearers[bearer_id]; - memset(b_ptr, 0, sizeof(struct bearer)); - strcpy(b_ptr->publ.name, name); res = m_ptr->enable_bearer(&b_ptr->publ); if (res) { @@ -630,44 +620,38 @@ int tipc_block_bearer(const char *name) * Note: This routine assumes caller holds tipc_net_lock. */ -static int bearer_disable(const char *name) +static void bearer_disable(struct bearer *b_ptr) { - struct bearer *b_ptr; struct link *l_ptr; struct link *temp_l_ptr; - b_ptr = bearer_find(name); - if (!b_ptr) { - warn("Attempt to disable unknown bearer <%s>\n", name); - return -EINVAL; - } - - info("Disabling bearer <%s>\n", name); + info("Disabling bearer <%s>\n", b_ptr->publ.name); tipc_disc_stop_link_req(b_ptr->link_req); spin_lock_bh(&b_ptr->publ.lock); b_ptr->link_req = NULL; b_ptr->publ.blocked = 1; - if (b_ptr->media->disable_bearer) { - spin_unlock_bh(&b_ptr->publ.lock); - write_unlock_bh(&tipc_net_lock); - b_ptr->media->disable_bearer(&b_ptr->publ); - write_lock_bh(&tipc_net_lock); - spin_lock_bh(&b_ptr->publ.lock); - } + b_ptr->media->disable_bearer(&b_ptr->publ); list_for_each_entry_safe(l_ptr, temp_l_ptr, &b_ptr->links, link_list) { tipc_link_delete(l_ptr); } spin_unlock_bh(&b_ptr->publ.lock); memset(b_ptr, 0, sizeof(struct bearer)); - return 0; } int tipc_disable_bearer(const char *name) { + struct bearer *b_ptr; int res; write_lock_bh(&tipc_net_lock); - res = bearer_disable(name); + b_ptr = bearer_find(name); + if (b_ptr == NULL) { + warn("Attempt to disable unknown bearer <%s>\n", name); + res = -EINVAL; + } else { + bearer_disable(b_ptr); + res = 0; + } write_unlock_bh(&tipc_net_lock); return res; } @@ -680,13 +664,7 @@ void tipc_bearer_stop(void) for (i = 0; i < MAX_BEARERS; i++) { if (tipc_bearers[i].active) - tipc_bearers[i].publ.blocked = 1; - } - for (i = 0; i < MAX_BEARERS; i++) { - if (tipc_bearers[i].active) - bearer_disable(tipc_bearers[i].publ.name); + bearer_disable(&tipc_bearers[i]); } media_count = 0; } - - diff --git a/net/tipc/bearer.h b/net/tipc/bearer.h index a850b389663e..85f451d5aacf 100644 --- a/net/tipc/bearer.h +++ b/net/tipc/bearer.h @@ -37,12 +37,50 @@ #ifndef _TIPC_BEARER_H #define _TIPC_BEARER_H -#include "core.h" #include "bcast.h" #define MAX_BEARERS 8 #define MAX_MEDIA 4 +/* + * Identifiers of supported TIPC media types + */ +#define TIPC_MEDIA_TYPE_ETH 1 + +/* + * Destination address structure used by TIPC bearers when sending messages + * + * IMPORTANT: The fields of this structure MUST be stored using the specified + * byte order indicated below, as the structure is exchanged between nodes + * as part of a link setup process. + */ +struct tipc_media_addr { + __be32 type; /* bearer type (network byte order) */ + union { + __u8 eth_addr[6]; /* 48 bit Ethernet addr (byte array) */ + } dev_addr; +}; + +/** + * struct tipc_bearer - TIPC bearer info available to media code + * @usr_handle: pointer to additional media-specific information about bearer + * @mtu: max packet size bearer can support + * @blocked: non-zero if bearer is blocked + * @lock: spinlock for controlling access to bearer + * @addr: media-specific address associated with bearer + * @name: bearer name (format = media:interface) + * + * Note: TIPC initializes "name" and "lock" fields; media code is responsible + * for initialization all other fields when a bearer is enabled. + */ +struct tipc_bearer { + void *usr_handle; + u32 mtu; + int blocked; + spinlock_t lock; + struct tipc_media_addr addr; + char name[TIPC_MAX_BEARER_NAME]; +}; /** * struct media - TIPC media information available to internal users @@ -55,7 +93,7 @@ * @priority: default link (and bearer) priority * @tolerance: default time (in ms) before declaring link failure * @window: default window (in packets) before declaring link congestion - * @type_id: TIPC media identifier [defined in tipc_bearer.h] + * @type_id: TIPC media identifier * @name: media name */ @@ -116,6 +154,34 @@ struct link; extern struct bearer tipc_bearers[]; +/* + * TIPC routines available to supported media types + */ +int tipc_register_media(u32 media_type, + char *media_name, int (*enable)(struct tipc_bearer *), + void (*disable)(struct tipc_bearer *), + int (*send_msg)(struct sk_buff *, + struct tipc_bearer *, struct tipc_media_addr *), + char *(*addr2str)(struct tipc_media_addr *a, + char *str_buf, int str_size), + struct tipc_media_addr *bcast_addr, const u32 bearer_priority, + const u32 link_tolerance, /* [ms] */ + const u32 send_window_limit); + +void tipc_recv_msg(struct sk_buff *buf, struct tipc_bearer *tb_ptr); + +int tipc_block_bearer(const char *name); +void tipc_continue(struct tipc_bearer *tb_ptr); + +int tipc_enable_bearer(const char *bearer_name, u32 bcast_scope, u32 priority); +int tipc_disable_bearer(const char *name); + +/* + * Routines made available to TIPC by supported media types + */ +int tipc_eth_media_start(void); +void tipc_eth_media_stop(void); + void tipc_media_addr_printf(struct print_buf *pb, struct tipc_media_addr *a); struct sk_buff *tipc_media_get_names(void); @@ -126,7 +192,6 @@ void tipc_bearer_schedule(struct bearer *b_ptr, struct link *l_ptr); struct bearer *tipc_bearer_find_interface(const char *if_name); int tipc_bearer_resolve_congestion(struct bearer *b_ptr, struct link *l_ptr); int tipc_bearer_congested(struct bearer *b_ptr, struct link *l_ptr); -int tipc_bearer_init(void); void tipc_bearer_stop(void); void tipc_bearer_lock_push(struct bearer *b_ptr); diff --git a/net/tipc/cluster.c b/net/tipc/cluster.c deleted file mode 100644 index e68f705381bc..000000000000 --- a/net/tipc/cluster.c +++ /dev/null @@ -1,576 +0,0 @@ -/* - * net/tipc/cluster.c: TIPC cluster management routines - * - * Copyright (c) 2000-2006, Ericsson AB - * Copyright (c) 2005, Wind River Systems - * All rights reserved. - * - * Redistribution and use in source and binary forms, with or without - * modification, are permitted provided that the following conditions are met: - * - * 1. Redistributions of source code must retain the above copyright - * notice, this list of conditions and the following disclaimer. - * 2. Redistributions in binary form must reproduce the above copyright - * notice, this list of conditions and the following disclaimer in the - * documentation and/or other materials provided with the distribution. - * 3. Neither the names of the copyright holders nor the names of its - * contributors may be used to endorse or promote products derived from - * this software without specific prior written permission. - * - * Alternatively, this software may be distributed under the terms of the - * GNU General Public License ("GPL") version 2 as published by the Free - * Software Foundation. - * - * THIS SOFTWARE IS PROVIDED BY THE COPYRIGHT HOLDERS AND CONTRIBUTORS "AS IS" - * AND ANY EXPRESS OR IMPLIED WARRANTIES, INCLUDING, BUT NOT LIMITED TO, THE - * IMPLIED WARRANTIES OF MERCHANTABILITY AND FITNESS FOR A PARTICULAR PURPOSE - * ARE DISCLAIMED. IN NO EVENT SHALL THE COPYRIGHT OWNER OR CONTRIBUTORS BE - * LIABLE FOR ANY DIRECT, INDIRECT, INCIDENTAL, SPECIAL, EXEMPLARY, OR - * CONSEQUENTIAL DAMAGES (INCLUDING, BUT NOT LIMITED TO, PROCUREMENT OF - * SUBSTITUTE GOODS OR SERVICES; LOSS OF USE, DATA, OR PROFITS; OR BUSINESS - * INTERRUPTION) HOWEVER CAUSED AND ON ANY THEORY OF LIABILITY, WHETHER IN - * CONTRACT, STRICT LIABILITY, OR TORT (INCLUDING NEGLIGENCE OR OTHERWISE) - * ARISING IN ANY WAY OUT OF THE USE OF THIS SOFTWARE, EVEN IF ADVISED OF THE - * POSSIBILITY OF SUCH DAMAGE. - */ - -#include "core.h" -#include "cluster.h" -#include "addr.h" -#include "node_subscr.h" -#include "link.h" -#include "node.h" -#include "net.h" -#include "msg.h" -#include "bearer.h" - -static void tipc_cltr_multicast(struct cluster *c_ptr, struct sk_buff *buf, - u32 lower, u32 upper); -static struct sk_buff *tipc_cltr_prepare_routing_msg(u32 data_size, u32 dest); - -struct tipc_node **tipc_local_nodes = NULL; -struct tipc_node_map tipc_cltr_bcast_nodes = {0,{0,}}; -u32 tipc_highest_allowed_slave = 0; - -struct cluster *tipc_cltr_create(u32 addr) -{ - struct _zone *z_ptr; - struct cluster *c_ptr; - int max_nodes; - - c_ptr = kzalloc(sizeof(*c_ptr), GFP_ATOMIC); - if (c_ptr == NULL) { - warn("Cluster creation failure, no memory\n"); - return NULL; - } - - c_ptr->addr = tipc_addr(tipc_zone(addr), tipc_cluster(addr), 0); - if (in_own_cluster(addr)) - max_nodes = LOWEST_SLAVE + tipc_max_slaves; - else - max_nodes = tipc_max_nodes + 1; - - c_ptr->nodes = kcalloc(max_nodes + 1, sizeof(void*), GFP_ATOMIC); - if (c_ptr->nodes == NULL) { - warn("Cluster creation failure, no memory for node area\n"); - kfree(c_ptr); - return NULL; - } - - if (in_own_cluster(addr)) - tipc_local_nodes = c_ptr->nodes; - c_ptr->highest_slave = LOWEST_SLAVE - 1; - c_ptr->highest_node = 0; - - z_ptr = tipc_zone_find(tipc_zone(addr)); - if (!z_ptr) { - z_ptr = tipc_zone_create(addr); - } - if (!z_ptr) { - kfree(c_ptr->nodes); - kfree(c_ptr); - return NULL; - } - - tipc_zone_attach_cluster(z_ptr, c_ptr); - c_ptr->owner = z_ptr; - return c_ptr; -} - -void tipc_cltr_delete(struct cluster *c_ptr) -{ - u32 n_num; - - if (!c_ptr) - return; - for (n_num = 1; n_num <= c_ptr->highest_node; n_num++) { - tipc_node_delete(c_ptr->nodes[n_num]); - } - for (n_num = LOWEST_SLAVE; n_num <= c_ptr->highest_slave; n_num++) { - tipc_node_delete(c_ptr->nodes[n_num]); - } - kfree(c_ptr->nodes); - kfree(c_ptr); -} - -u32 tipc_cltr_next_node(struct cluster *c_ptr, u32 addr) -{ - struct tipc_node *n_ptr; - u32 n_num = tipc_node(addr) + 1; - - if (!c_ptr) - return addr; - for (; n_num <= c_ptr->highest_node; n_num++) { - n_ptr = c_ptr->nodes[n_num]; - if (n_ptr && tipc_node_has_active_links(n_ptr)) - return n_ptr->addr; - } - for (n_num = 1; n_num < tipc_node(addr); n_num++) { - n_ptr = c_ptr->nodes[n_num]; - if (n_ptr && tipc_node_has_active_links(n_ptr)) - return n_ptr->addr; - } - return 0; -} - -void tipc_cltr_attach_node(struct cluster *c_ptr, struct tipc_node *n_ptr) -{ - u32 n_num = tipc_node(n_ptr->addr); - u32 max_n_num = tipc_max_nodes; - - if (in_own_cluster(n_ptr->addr)) - max_n_num = tipc_highest_allowed_slave; - assert(n_num > 0); - assert(n_num <= max_n_num); - assert(c_ptr->nodes[n_num] == NULL); - c_ptr->nodes[n_num] = n_ptr; - if (n_num > c_ptr->highest_node) - c_ptr->highest_node = n_num; -} - -/** - * tipc_cltr_select_router - select router to a cluster - * - * Uses deterministic and fair algorithm. - */ - -u32 tipc_cltr_select_router(struct cluster *c_ptr, u32 ref) -{ - u32 n_num; - u32 ulim = c_ptr->highest_node; - u32 mask; - u32 tstart; - - assert(!in_own_cluster(c_ptr->addr)); - if (!ulim) - return 0; - - /* Start entry must be random */ - mask = tipc_max_nodes; - while (mask > ulim) - mask >>= 1; - tstart = ref & mask; - n_num = tstart; - - /* Lookup upwards with wrap-around */ - do { - if (tipc_node_is_up(c_ptr->nodes[n_num])) - break; - } while (++n_num <= ulim); - if (n_num > ulim) { - n_num = 1; - do { - if (tipc_node_is_up(c_ptr->nodes[n_num])) - break; - } while (++n_num < tstart); - if (n_num == tstart) - return 0; - } - assert(n_num <= ulim); - return tipc_node_select_router(c_ptr->nodes[n_num], ref); -} - -/** - * tipc_cltr_select_node - select destination node within a remote cluster - * - * Uses deterministic and fair algorithm. - */ - -struct tipc_node *tipc_cltr_select_node(struct cluster *c_ptr, u32 selector) -{ - u32 n_num; - u32 mask = tipc_max_nodes; - u32 start_entry; - - assert(!in_own_cluster(c_ptr->addr)); - if (!c_ptr->highest_node) - return NULL; - - /* Start entry must be random */ - while (mask > c_ptr->highest_node) { - mask >>= 1; - } - start_entry = (selector & mask) ? selector & mask : 1u; - assert(start_entry <= c_ptr->highest_node); - - /* Lookup upwards with wrap-around */ - for (n_num = start_entry; n_num <= c_ptr->highest_node; n_num++) { - if (tipc_node_has_active_links(c_ptr->nodes[n_num])) - return c_ptr->nodes[n_num]; - } - for (n_num = 1; n_num < start_entry; n_num++) { - if (tipc_node_has_active_links(c_ptr->nodes[n_num])) - return c_ptr->nodes[n_num]; - } - return NULL; -} - -/* - * Routing table management: See description in node.c - */ - -static struct sk_buff *tipc_cltr_prepare_routing_msg(u32 data_size, u32 dest) -{ - u32 size = INT_H_SIZE + data_size; - struct sk_buff *buf = buf_acquire(size); - struct tipc_msg *msg; - - if (buf) { - msg = buf_msg(buf); - memset((char *)msg, 0, size); - tipc_msg_init(msg, ROUTE_DISTRIBUTOR, 0, INT_H_SIZE, dest); - } - return buf; -} - -void tipc_cltr_bcast_new_route(struct cluster *c_ptr, u32 dest, - u32 lower, u32 upper) -{ - struct sk_buff *buf = tipc_cltr_prepare_routing_msg(0, c_ptr->addr); - struct tipc_msg *msg; - - if (buf) { - msg = buf_msg(buf); - msg_set_remote_node(msg, dest); - msg_set_type(msg, ROUTE_ADDITION); - tipc_cltr_multicast(c_ptr, buf, lower, upper); - } else { - warn("Memory squeeze: broadcast of new route failed\n"); - } -} - -void tipc_cltr_bcast_lost_route(struct cluster *c_ptr, u32 dest, - u32 lower, u32 upper) -{ - struct sk_buff *buf = tipc_cltr_prepare_routing_msg(0, c_ptr->addr); - struct tipc_msg *msg; - - if (buf) { - msg = buf_msg(buf); - msg_set_remote_node(msg, dest); - msg_set_type(msg, ROUTE_REMOVAL); - tipc_cltr_multicast(c_ptr, buf, lower, upper); - } else { - warn("Memory squeeze: broadcast of lost route failed\n"); - } -} - -void tipc_cltr_send_slave_routes(struct cluster *c_ptr, u32 dest) -{ - struct sk_buff *buf; - struct tipc_msg *msg; - u32 highest = c_ptr->highest_slave; - u32 n_num; - int send = 0; - - assert(!is_slave(dest)); - assert(in_own_cluster(dest)); - assert(in_own_cluster(c_ptr->addr)); - if (highest <= LOWEST_SLAVE) - return; - buf = tipc_cltr_prepare_routing_msg(highest - LOWEST_SLAVE + 1, - c_ptr->addr); - if (buf) { - msg = buf_msg(buf); - msg_set_remote_node(msg, c_ptr->addr); - msg_set_type(msg, SLAVE_ROUTING_TABLE); - for (n_num = LOWEST_SLAVE; n_num <= highest; n_num++) { - if (c_ptr->nodes[n_num] && - tipc_node_has_active_links(c_ptr->nodes[n_num])) { - send = 1; - msg_set_dataoctet(msg, n_num); - } - } - if (send) - tipc_link_send(buf, dest, dest); - else - buf_discard(buf); - } else { - warn("Memory squeeze: broadcast of lost route failed\n"); - } -} - -void tipc_cltr_send_ext_routes(struct cluster *c_ptr, u32 dest) -{ - struct sk_buff *buf; - struct tipc_msg *msg; - u32 highest = c_ptr->highest_node; - u32 n_num; - int send = 0; - - if (in_own_cluster(c_ptr->addr)) - return; - assert(!is_slave(dest)); - assert(in_own_cluster(dest)); - highest = c_ptr->highest_node; - buf = tipc_cltr_prepare_routing_msg(highest + 1, c_ptr->addr); - if (buf) { - msg = buf_msg(buf); - msg_set_remote_node(msg, c_ptr->addr); - msg_set_type(msg, EXT_ROUTING_TABLE); - for (n_num = 1; n_num <= highest; n_num++) { - if (c_ptr->nodes[n_num] && - tipc_node_has_active_links(c_ptr->nodes[n_num])) { - send = 1; - msg_set_dataoctet(msg, n_num); - } - } - if (send) - tipc_link_send(buf, dest, dest); - else - buf_discard(buf); - } else { - warn("Memory squeeze: broadcast of external route failed\n"); - } -} - -void tipc_cltr_send_local_routes(struct cluster *c_ptr, u32 dest) -{ - struct sk_buff *buf; - struct tipc_msg *msg; - u32 highest = c_ptr->highest_node; - u32 n_num; - int send = 0; - - assert(is_slave(dest)); - assert(in_own_cluster(c_ptr->addr)); - buf = tipc_cltr_prepare_routing_msg(highest, c_ptr->addr); - if (buf) { - msg = buf_msg(buf); - msg_set_remote_node(msg, c_ptr->addr); - msg_set_type(msg, LOCAL_ROUTING_TABLE); - for (n_num = 1; n_num <= highest; n_num++) { - if (c_ptr->nodes[n_num] && - tipc_node_has_active_links(c_ptr->nodes[n_num])) { - send = 1; - msg_set_dataoctet(msg, n_num); - } - } - if (send) - tipc_link_send(buf, dest, dest); - else - buf_discard(buf); - } else { - warn("Memory squeeze: broadcast of local route failed\n"); - } -} - -void tipc_cltr_recv_routing_table(struct sk_buff *buf) -{ - struct tipc_msg *msg = buf_msg(buf); - struct cluster *c_ptr; - struct tipc_node *n_ptr; - unchar *node_table; - u32 table_size; - u32 router; - u32 rem_node = msg_remote_node(msg); - u32 z_num; - u32 c_num; - u32 n_num; - - c_ptr = tipc_cltr_find(rem_node); - if (!c_ptr) { - c_ptr = tipc_cltr_create(rem_node); - if (!c_ptr) { - buf_discard(buf); - return; - } - } - - node_table = buf->data + msg_hdr_sz(msg); - table_size = msg_size(msg) - msg_hdr_sz(msg); - router = msg_prevnode(msg); - z_num = tipc_zone(rem_node); - c_num = tipc_cluster(rem_node); - - switch (msg_type(msg)) { - case LOCAL_ROUTING_TABLE: - assert(is_slave(tipc_own_addr)); - case EXT_ROUTING_TABLE: - for (n_num = 1; n_num < table_size; n_num++) { - if (node_table[n_num]) { - u32 addr = tipc_addr(z_num, c_num, n_num); - n_ptr = c_ptr->nodes[n_num]; - if (!n_ptr) { - n_ptr = tipc_node_create(addr); - } - if (n_ptr) - tipc_node_add_router(n_ptr, router); - } - } - break; - case SLAVE_ROUTING_TABLE: - assert(!is_slave(tipc_own_addr)); - assert(in_own_cluster(c_ptr->addr)); - for (n_num = 1; n_num < table_size; n_num++) { - if (node_table[n_num]) { - u32 slave_num = n_num + LOWEST_SLAVE; - u32 addr = tipc_addr(z_num, c_num, slave_num); - n_ptr = c_ptr->nodes[slave_num]; - if (!n_ptr) { - n_ptr = tipc_node_create(addr); - } - if (n_ptr) - tipc_node_add_router(n_ptr, router); - } - } - break; - case ROUTE_ADDITION: - if (!is_slave(tipc_own_addr)) { - assert(!in_own_cluster(c_ptr->addr) || - is_slave(rem_node)); - } else { - assert(in_own_cluster(c_ptr->addr) && - !is_slave(rem_node)); - } - n_ptr = c_ptr->nodes[tipc_node(rem_node)]; - if (!n_ptr) - n_ptr = tipc_node_create(rem_node); - if (n_ptr) - tipc_node_add_router(n_ptr, router); - break; - case ROUTE_REMOVAL: - if (!is_slave(tipc_own_addr)) { - assert(!in_own_cluster(c_ptr->addr) || - is_slave(rem_node)); - } else { - assert(in_own_cluster(c_ptr->addr) && - !is_slave(rem_node)); - } - n_ptr = c_ptr->nodes[tipc_node(rem_node)]; - if (n_ptr) - tipc_node_remove_router(n_ptr, router); - break; - default: - assert(!"Illegal routing manager message received\n"); - } - buf_discard(buf); -} - -void tipc_cltr_remove_as_router(struct cluster *c_ptr, u32 router) -{ - u32 start_entry; - u32 tstop; - u32 n_num; - - if (is_slave(router)) - return; /* Slave nodes can not be routers */ - - if (in_own_cluster(c_ptr->addr)) { - start_entry = LOWEST_SLAVE; - tstop = c_ptr->highest_slave; - } else { - start_entry = 1; - tstop = c_ptr->highest_node; - } - - for (n_num = start_entry; n_num <= tstop; n_num++) { - if (c_ptr->nodes[n_num]) { - tipc_node_remove_router(c_ptr->nodes[n_num], router); - } - } -} - -/** - * tipc_cltr_multicast - multicast message to local nodes - */ - -static void tipc_cltr_multicast(struct cluster *c_ptr, struct sk_buff *buf, - u32 lower, u32 upper) -{ - struct sk_buff *buf_copy; - struct tipc_node *n_ptr; - u32 n_num; - u32 tstop; - - assert(lower <= upper); - assert(((lower >= 1) && (lower <= tipc_max_nodes)) || - ((lower >= LOWEST_SLAVE) && (lower <= tipc_highest_allowed_slave))); - assert(((upper >= 1) && (upper <= tipc_max_nodes)) || - ((upper >= LOWEST_SLAVE) && (upper <= tipc_highest_allowed_slave))); - assert(in_own_cluster(c_ptr->addr)); - - tstop = is_slave(upper) ? c_ptr->highest_slave : c_ptr->highest_node; - if (tstop > upper) - tstop = upper; - for (n_num = lower; n_num <= tstop; n_num++) { - n_ptr = c_ptr->nodes[n_num]; - if (n_ptr && tipc_node_has_active_links(n_ptr)) { - buf_copy = skb_copy(buf, GFP_ATOMIC); - if (buf_copy == NULL) - break; - msg_set_destnode(buf_msg(buf_copy), n_ptr->addr); - tipc_link_send(buf_copy, n_ptr->addr, n_ptr->addr); - } - } - buf_discard(buf); -} - -/** - * tipc_cltr_broadcast - broadcast message to all nodes within cluster - */ - -void tipc_cltr_broadcast(struct sk_buff *buf) -{ - struct sk_buff *buf_copy; - struct cluster *c_ptr; - struct tipc_node *n_ptr; - u32 n_num; - u32 tstart; - u32 tstop; - u32 node_type; - - if (tipc_mode == TIPC_NET_MODE) { - c_ptr = tipc_cltr_find(tipc_own_addr); - assert(in_own_cluster(c_ptr->addr)); /* For now */ - - /* Send to standard nodes, then repeat loop sending to slaves */ - tstart = 1; - tstop = c_ptr->highest_node; - for (node_type = 1; node_type <= 2; node_type++) { - for (n_num = tstart; n_num <= tstop; n_num++) { - n_ptr = c_ptr->nodes[n_num]; - if (n_ptr && tipc_node_has_active_links(n_ptr)) { - buf_copy = skb_copy(buf, GFP_ATOMIC); - if (buf_copy == NULL) - goto exit; - msg_set_destnode(buf_msg(buf_copy), - n_ptr->addr); - tipc_link_send(buf_copy, n_ptr->addr, - n_ptr->addr); - } - } - tstart = LOWEST_SLAVE; - tstop = c_ptr->highest_slave; - } - } -exit: - buf_discard(buf); -} - -int tipc_cltr_init(void) -{ - tipc_highest_allowed_slave = LOWEST_SLAVE + tipc_max_slaves; - return tipc_cltr_create(tipc_own_addr) ? 0 : -ENOMEM; -} - diff --git a/net/tipc/cluster.h b/net/tipc/cluster.h deleted file mode 100644 index 333efb0b9c44..000000000000 --- a/net/tipc/cluster.h +++ /dev/null @@ -1,92 +0,0 @@ -/* - * net/tipc/cluster.h: Include file for TIPC cluster management routines - * - * Copyright (c) 2000-2006, Ericsson AB - * Copyright (c) 2005, Wind River Systems - * All rights reserved. - * - * Redistribution and use in source and binary forms, with or without - * modification, are permitted provided that the following conditions are met: - * - * 1. Redistributions of source code must retain the above copyright - * notice, this list of conditions and the following disclaimer. - * 2. Redistributions in binary form must reproduce the above copyright - * notice, this list of conditions and the following disclaimer in the - * documentation and/or other materials provided with the distribution. - * 3. Neither the names of the copyright holders nor the names of its - * contributors may be used to endorse or promote products derived from - * this software without specific prior written permission. - * - * Alternatively, this software may be distributed under the terms of the - * GNU General Public License ("GPL") version 2 as published by the Free - * Software Foundation. - * - * THIS SOFTWARE IS PROVIDED BY THE COPYRIGHT HOLDERS AND CONTRIBUTORS "AS IS" - * AND ANY EXPRESS OR IMPLIED WARRANTIES, INCLUDING, BUT NOT LIMITED TO, THE - * IMPLIED WARRANTIES OF MERCHANTABILITY AND FITNESS FOR A PARTICULAR PURPOSE - * ARE DISCLAIMED. IN NO EVENT SHALL THE COPYRIGHT OWNER OR CONTRIBUTORS BE - * LIABLE FOR ANY DIRECT, INDIRECT, INCIDENTAL, SPECIAL, EXEMPLARY, OR - * CONSEQUENTIAL DAMAGES (INCLUDING, BUT NOT LIMITED TO, PROCUREMENT OF - * SUBSTITUTE GOODS OR SERVICES; LOSS OF USE, DATA, OR PROFITS; OR BUSINESS - * INTERRUPTION) HOWEVER CAUSED AND ON ANY THEORY OF LIABILITY, WHETHER IN - * CONTRACT, STRICT LIABILITY, OR TORT (INCLUDING NEGLIGENCE OR OTHERWISE) - * ARISING IN ANY WAY OUT OF THE USE OF THIS SOFTWARE, EVEN IF ADVISED OF THE - * POSSIBILITY OF SUCH DAMAGE. - */ - -#ifndef _TIPC_CLUSTER_H -#define _TIPC_CLUSTER_H - -#include "addr.h" -#include "zone.h" - -#define LOWEST_SLAVE 2048u - -/** - * struct cluster - TIPC cluster structure - * @addr: network address of cluster - * @owner: pointer to zone that cluster belongs to - * @nodes: array of pointers to all nodes within cluster - * @highest_node: id of highest numbered node within cluster - * @highest_slave: (used for secondary node support) - */ - -struct cluster { - u32 addr; - struct _zone *owner; - struct tipc_node **nodes; - u32 highest_node; - u32 highest_slave; -}; - - -extern struct tipc_node **tipc_local_nodes; -extern u32 tipc_highest_allowed_slave; -extern struct tipc_node_map tipc_cltr_bcast_nodes; - -void tipc_cltr_remove_as_router(struct cluster *c_ptr, u32 router); -void tipc_cltr_send_ext_routes(struct cluster *c_ptr, u32 dest); -struct tipc_node *tipc_cltr_select_node(struct cluster *c_ptr, u32 selector); -u32 tipc_cltr_select_router(struct cluster *c_ptr, u32 ref); -void tipc_cltr_recv_routing_table(struct sk_buff *buf); -struct cluster *tipc_cltr_create(u32 addr); -void tipc_cltr_delete(struct cluster *c_ptr); -void tipc_cltr_attach_node(struct cluster *c_ptr, struct tipc_node *n_ptr); -void tipc_cltr_send_slave_routes(struct cluster *c_ptr, u32 dest); -void tipc_cltr_broadcast(struct sk_buff *buf); -int tipc_cltr_init(void); -u32 tipc_cltr_next_node(struct cluster *c_ptr, u32 addr); -void tipc_cltr_bcast_new_route(struct cluster *c_ptr, u32 dest, u32 lo, u32 hi); -void tipc_cltr_send_local_routes(struct cluster *c_ptr, u32 dest); -void tipc_cltr_bcast_lost_route(struct cluster *c_ptr, u32 dest, u32 lo, u32 hi); - -static inline struct cluster *tipc_cltr_find(u32 addr) -{ - struct _zone *z_ptr = tipc_zone_find(addr); - - if (z_ptr) - return z_ptr->clusters[1]; - return NULL; -} - -#endif diff --git a/net/tipc/config.c b/net/tipc/config.c index 961d1b097146..e16750dcf3c1 100644 --- a/net/tipc/config.c +++ b/net/tipc/config.c @@ -35,30 +35,11 @@ */ #include "core.h" -#include "dbg.h" -#include "bearer.h" #include "port.h" -#include "link.h" -#include "zone.h" -#include "addr.h" #include "name_table.h" -#include "node.h" #include "config.h" -#include "discover.h" -struct subscr_data { - char usr_handle[8]; - u32 domain; - u32 port_ref; - struct list_head subd_list; -}; - -struct manager { - u32 user_ref; - u32 port_ref; -}; - -static struct manager mng = { 0}; +static u32 config_port_ref; static DEFINE_SPINLOCK(config_lock); @@ -83,10 +64,8 @@ int tipc_cfg_append_tlv(struct sk_buff *buf, int tlv_type, struct tlv_desc *tlv = (struct tlv_desc *)skb_tail_pointer(buf); int new_tlv_space = TLV_SPACE(tlv_data_size); - if (skb_tailroom(buf) < new_tlv_space) { - dbg("tipc_cfg_append_tlv unable to append TLV\n"); + if (skb_tailroom(buf) < new_tlv_space) return 0; - } skb_put(buf, new_tlv_space); tlv->tlv_type = htons(tlv_type); tlv->tlv_len = htons(TLV_LENGTH(tlv_data_size)); @@ -95,7 +74,7 @@ int tipc_cfg_append_tlv(struct sk_buff *buf, int tlv_type, return 1; } -struct sk_buff *tipc_cfg_reply_unsigned_type(u16 tlv_type, u32 value) +static struct sk_buff *tipc_cfg_reply_unsigned_type(u16 tlv_type, u32 value) { struct sk_buff *buf; __be32 value_net; @@ -109,6 +88,11 @@ struct sk_buff *tipc_cfg_reply_unsigned_type(u16 tlv_type, u32 value) return buf; } +static struct sk_buff *tipc_cfg_reply_unsigned(u32 value) +{ + return tipc_cfg_reply_unsigned_type(TIPC_TLV_UNSIGNED, value); +} + struct sk_buff *tipc_cfg_reply_string_type(u16 tlv_type, char *string) { struct sk_buff *buf; @@ -120,139 +104,6 @@ struct sk_buff *tipc_cfg_reply_string_type(u16 tlv_type, char *string) return buf; } - -#if 0 - -/* Now obsolete code for handling commands not yet implemented the new way */ - -/* - * Some of this code assumed that the manager structure contains two added - * fields: - * u32 link_subscriptions; - * struct list_head link_subscribers; - * which are currently not present. These fields may need to be re-introduced - * if and when support for link subscriptions is added. - */ - -void tipc_cfg_link_event(u32 addr, char *name, int up) -{ - /* TIPC DOESN'T HANDLE LINK EVENT SUBSCRIPTIONS AT THE MOMENT */ -} - -int tipc_cfg_cmd(const struct tipc_cmd_msg * msg, - char *data, - u32 sz, - u32 *ret_size, - struct tipc_portid *orig) -{ - int rv = -EINVAL; - u32 cmd = msg->cmd; - - *ret_size = 0; - switch (cmd) { - case TIPC_REMOVE_LINK: - case TIPC_CMD_BLOCK_LINK: - case TIPC_CMD_UNBLOCK_LINK: - if (!cfg_check_connection(orig)) - rv = link_control(msg->argv.link_name, msg->cmd, 0); - break; - case TIPC_ESTABLISH: - { - int connected; - - tipc_isconnected(mng.conn_port_ref, &connected); - if (connected || !orig) { - rv = TIPC_FAILURE; - break; - } - rv = tipc_connect2port(mng.conn_port_ref, orig); - if (rv == TIPC_OK) - orig = 0; - break; - } - case TIPC_GET_PEER_ADDRESS: - *ret_size = link_peer_addr(msg->argv.link_name, data, sz); - break; - case TIPC_GET_ROUTES: - rv = TIPC_OK; - break; - default: {} - } - if (*ret_size) - rv = TIPC_OK; - return rv; -} - -static void cfg_cmd_event(struct tipc_cmd_msg *msg, - char *data, - u32 sz, - struct tipc_portid const *orig) -{ - int rv = -EINVAL; - struct tipc_cmd_result_msg rmsg; - struct iovec msg_sect[2]; - int *arg; - - msg->cmd = ntohl(msg->cmd); - - cfg_prepare_res_msg(msg->cmd, msg->usr_handle, rv, &rmsg, msg_sect, - data, 0); - if (ntohl(msg->magic) != TIPC_MAGIC) - goto exit; - - switch (msg->cmd) { - case TIPC_CREATE_LINK: - if (!cfg_check_connection(orig)) - rv = disc_create_link(&msg->argv.create_link); - break; - case TIPC_LINK_SUBSCRIBE: - { - struct subscr_data *sub; - - if (mng.link_subscriptions > 64) - break; - sub = kmalloc(sizeof(*sub), - GFP_ATOMIC); - if (sub == NULL) { - warn("Memory squeeze; dropped remote link subscription\n"); - break; - } - INIT_LIST_HEAD(&sub->subd_list); - tipc_createport(mng.user_ref, - (void *)sub, - TIPC_HIGH_IMPORTANCE, - 0, - 0, - (tipc_conn_shutdown_event)cfg_linksubscr_cancel, - 0, - 0, - (tipc_conn_msg_event)cfg_linksubscr_cancel, - 0, - &sub->port_ref); - if (!sub->port_ref) { - kfree(sub); - break; - } - memcpy(sub->usr_handle,msg->usr_handle, - sizeof(sub->usr_handle)); - sub->domain = msg->argv.domain; - list_add_tail(&sub->subd_list, &mng.link_subscribers); - tipc_connect2port(sub->port_ref, orig); - rmsg.retval = TIPC_OK; - tipc_send(sub->port_ref, 2u, msg_sect); - mng.link_subscriptions++; - return; - } - default: - rv = tipc_cfg_cmd(msg, data, sz, (u32 *)&msg_sect[1].iov_len, orig); - } -exit: - rmsg.result_len = htonl(msg_sect[1].iov_len); - rmsg.retval = htonl(rv); - tipc_cfg_respond(msg_sect, 2u, orig); -} -#endif - #define MAX_STATS_INFO 2000 static struct sk_buff *tipc_show_stats(void) @@ -409,38 +260,6 @@ static struct sk_buff *cfg_set_max_ports(void) return tipc_cfg_reply_none(); } -static struct sk_buff *cfg_set_max_zones(void) -{ - u32 value; - - if (!TLV_CHECK(req_tlv_area, req_tlv_space, TIPC_TLV_UNSIGNED)) - return tipc_cfg_reply_error_string(TIPC_CFG_TLV_ERROR); - value = ntohl(*(__be32 *)TLV_DATA(req_tlv_area)); - if (value == tipc_max_zones) - return tipc_cfg_reply_none(); - if (value != delimit(value, 1, 255)) - return tipc_cfg_reply_error_string(TIPC_CFG_INVALID_VALUE - " (max zones must be 1-255)"); - if (tipc_mode == TIPC_NET_MODE) - return tipc_cfg_reply_error_string(TIPC_CFG_NOT_SUPPORTED - " (cannot change max zones once TIPC has joined a network)"); - tipc_max_zones = value; - return tipc_cfg_reply_none(); -} - -static struct sk_buff *cfg_set_max_clusters(void) -{ - u32 value; - - if (!TLV_CHECK(req_tlv_area, req_tlv_space, TIPC_TLV_UNSIGNED)) - return tipc_cfg_reply_error_string(TIPC_CFG_TLV_ERROR); - value = ntohl(*(__be32 *)TLV_DATA(req_tlv_area)); - if (value != delimit(value, 1, 1)) - return tipc_cfg_reply_error_string(TIPC_CFG_INVALID_VALUE - " (max clusters fixed at 1)"); - return tipc_cfg_reply_none(); -} - static struct sk_buff *cfg_set_max_nodes(void) { u32 value; @@ -460,19 +279,6 @@ static struct sk_buff *cfg_set_max_nodes(void) return tipc_cfg_reply_none(); } -static struct sk_buff *cfg_set_max_slaves(void) -{ - u32 value; - - if (!TLV_CHECK(req_tlv_area, req_tlv_space, TIPC_TLV_UNSIGNED)) - return tipc_cfg_reply_error_string(TIPC_CFG_TLV_ERROR); - value = ntohl(*(__be32 *)TLV_DATA(req_tlv_area)); - if (value != 0) - return tipc_cfg_reply_error_string(TIPC_CFG_NOT_SUPPORTED - " (max secondary nodes fixed at 0)"); - return tipc_cfg_reply_none(); -} - static struct sk_buff *cfg_set_netid(void) { u32 value; @@ -516,8 +322,7 @@ struct sk_buff *tipc_cfg_do_cmd(u32 orig_node, u16 cmd, const void *request_area } else if (!tipc_remote_management) { rep_tlv_buf = tipc_cfg_reply_error_string(TIPC_CFG_NO_REMOTE); goto exit; - } - else if (cmd >= 0x4000) { + } else if (cmd >= 0x4000) { u32 domain = 0; if ((tipc_nametbl_translate(TIPC_ZM_SRV, 0, &domain) == 0) || @@ -557,14 +362,6 @@ struct sk_buff *tipc_cfg_do_cmd(u32 orig_node, u16 cmd, const void *request_area case TIPC_CMD_SHOW_PORTS: rep_tlv_buf = tipc_port_get_ports(); break; -#if 0 - case TIPC_CMD_SHOW_PORT_STATS: - rep_tlv_buf = port_show_stats(req_tlv_area, req_tlv_space); - break; - case TIPC_CMD_RESET_PORT_STATS: - rep_tlv_buf = tipc_cfg_reply_error_string(TIPC_CFG_NOT_SUPPORTED); - break; -#endif case TIPC_CMD_SET_LOG_SIZE: rep_tlv_buf = tipc_log_resize_cmd(req_tlv_area, req_tlv_space); break; @@ -600,18 +397,9 @@ struct sk_buff *tipc_cfg_do_cmd(u32 orig_node, u16 cmd, const void *request_area case TIPC_CMD_SET_MAX_SUBSCR: rep_tlv_buf = cfg_set_max_subscriptions(); break; - case TIPC_CMD_SET_MAX_ZONES: - rep_tlv_buf = cfg_set_max_zones(); - break; - case TIPC_CMD_SET_MAX_CLUSTERS: - rep_tlv_buf = cfg_set_max_clusters(); - break; case TIPC_CMD_SET_MAX_NODES: rep_tlv_buf = cfg_set_max_nodes(); break; - case TIPC_CMD_SET_MAX_SLAVES: - rep_tlv_buf = cfg_set_max_slaves(); - break; case TIPC_CMD_SET_NETID: rep_tlv_buf = cfg_set_netid(); break; @@ -627,18 +415,9 @@ struct sk_buff *tipc_cfg_do_cmd(u32 orig_node, u16 cmd, const void *request_area case TIPC_CMD_GET_MAX_SUBSCR: rep_tlv_buf = tipc_cfg_reply_unsigned(tipc_max_subscriptions); break; - case TIPC_CMD_GET_MAX_ZONES: - rep_tlv_buf = tipc_cfg_reply_unsigned(tipc_max_zones); - break; - case TIPC_CMD_GET_MAX_CLUSTERS: - rep_tlv_buf = tipc_cfg_reply_unsigned(tipc_max_clusters); - break; case TIPC_CMD_GET_MAX_NODES: rep_tlv_buf = tipc_cfg_reply_unsigned(tipc_max_nodes); break; - case TIPC_CMD_GET_MAX_SLAVES: - rep_tlv_buf = tipc_cfg_reply_unsigned(tipc_max_slaves); - break; case TIPC_CMD_GET_NETID: rep_tlv_buf = tipc_cfg_reply_unsigned(tipc_net_id); break; @@ -646,6 +425,15 @@ struct sk_buff *tipc_cfg_do_cmd(u32 orig_node, u16 cmd, const void *request_area rep_tlv_buf = tipc_cfg_reply_error_string(TIPC_CFG_NOT_NET_ADMIN); break; + case TIPC_CMD_SET_MAX_ZONES: + case TIPC_CMD_GET_MAX_ZONES: + case TIPC_CMD_SET_MAX_SLAVES: + case TIPC_CMD_GET_MAX_SLAVES: + case TIPC_CMD_SET_MAX_CLUSTERS: + case TIPC_CMD_GET_MAX_CLUSTERS: + rep_tlv_buf = tipc_cfg_reply_error_string(TIPC_CFG_NOT_SUPPORTED + " (obsolete command)"); + break; default: rep_tlv_buf = tipc_cfg_reply_error_string(TIPC_CFG_NOT_SUPPORTED " (unknown command)"); @@ -708,20 +496,16 @@ int tipc_cfg_init(void) struct tipc_name_seq seq; int res; - res = tipc_attach(&mng.user_ref, NULL, NULL); - if (res) - goto failed; - - res = tipc_createport(mng.user_ref, NULL, TIPC_CRITICAL_IMPORTANCE, + res = tipc_createport(NULL, TIPC_CRITICAL_IMPORTANCE, NULL, NULL, NULL, NULL, cfg_named_msg_event, NULL, - NULL, &mng.port_ref); + NULL, &config_port_ref); if (res) goto failed; seq.type = TIPC_CFG_SRV; seq.lower = seq.upper = tipc_own_addr; - res = tipc_nametbl_publish_rsv(mng.port_ref, TIPC_ZONE_SCOPE, &seq); + res = tipc_nametbl_publish_rsv(config_port_ref, TIPC_ZONE_SCOPE, &seq); if (res) goto failed; @@ -729,15 +513,13 @@ int tipc_cfg_init(void) failed: err("Unable to create configuration service\n"); - tipc_detach(mng.user_ref); - mng.user_ref = 0; return res; } void tipc_cfg_stop(void) { - if (mng.user_ref) { - tipc_detach(mng.user_ref); - mng.user_ref = 0; + if (config_port_ref) { + tipc_deleteport(config_port_ref); + config_port_ref = 0; } } diff --git a/net/tipc/config.h b/net/tipc/config.h index 5cd7cc56c54d..443159a166fd 100644 --- a/net/tipc/config.h +++ b/net/tipc/config.h @@ -39,13 +39,11 @@ /* ---------------------------------------------------------------------- */ -#include "core.h" #include "link.h" struct sk_buff *tipc_cfg_reply_alloc(int payload_size); int tipc_cfg_append_tlv(struct sk_buff *buf, int tlv_type, void *tlv_data, int tlv_data_size); -struct sk_buff *tipc_cfg_reply_unsigned_type(u16 tlv_type, u32 value); struct sk_buff *tipc_cfg_reply_string_type(u16 tlv_type, char *string); static inline struct sk_buff *tipc_cfg_reply_none(void) @@ -53,11 +51,6 @@ static inline struct sk_buff *tipc_cfg_reply_none(void) return tipc_cfg_reply_alloc(0); } -static inline struct sk_buff *tipc_cfg_reply_unsigned(u32 value) -{ - return tipc_cfg_reply_unsigned_type(TIPC_TLV_UNSIGNED, value); -} - static inline struct sk_buff *tipc_cfg_reply_error_string(char *string) { return tipc_cfg_reply_string_type(TIPC_TLV_ERROR_STRING, string); diff --git a/net/tipc/core.c b/net/tipc/core.c index 696468117985..e071579e0850 100644 --- a/net/tipc/core.c +++ b/net/tipc/core.c @@ -34,37 +34,17 @@ * POSSIBILITY OF SUCH DAMAGE. */ -#include <linux/init.h> -#include <linux/module.h> -#include <linux/kernel.h> -#include <linux/random.h> - #include "core.h" -#include "dbg.h" #include "ref.h" -#include "net.h" -#include "user_reg.h" #include "name_table.h" #include "subscr.h" #include "config.h" -#ifndef CONFIG_TIPC_ZONES -#define CONFIG_TIPC_ZONES 3 -#endif - -#ifndef CONFIG_TIPC_CLUSTERS -#define CONFIG_TIPC_CLUSTERS 1 -#endif - #ifndef CONFIG_TIPC_NODES #define CONFIG_TIPC_NODES 255 #endif -#ifndef CONFIG_TIPC_SLAVE_NODES -#define CONFIG_TIPC_SLAVE_NODES 0 -#endif - #ifndef CONFIG_TIPC_PORTS #define CONFIG_TIPC_PORTS 8191 #endif @@ -85,10 +65,7 @@ const char tipc_alphabet[] = /* configurable TIPC parameters */ u32 tipc_own_addr; -int tipc_max_zones; -int tipc_max_clusters; int tipc_max_nodes; -int tipc_max_slaves; int tipc_max_ports; int tipc_max_subscriptions; int tipc_max_publications; @@ -96,13 +73,8 @@ int tipc_net_id; int tipc_remote_management; -int tipc_get_mode(void) -{ - return tipc_mode; -} - /** - * buf_acquire - creates a TIPC message buffer + * tipc_buf_acquire - creates a TIPC message buffer * @size: message size (including TIPC header) * * Returns a new buffer with data pointers set to the specified size. @@ -111,7 +83,7 @@ int tipc_get_mode(void) * There may also be unrequested tailroom present at the buffer's end. */ -struct sk_buff *buf_acquire(u32 size) +struct sk_buff *tipc_buf_acquire(u32 size) { struct sk_buff *skb; unsigned int buf_size = (BUF_HEADROOM + size + 3) & ~3u; @@ -129,7 +101,7 @@ struct sk_buff *buf_acquire(u32 size) * tipc_core_stop_net - shut down TIPC networking sub-systems */ -void tipc_core_stop_net(void) +static void tipc_core_stop_net(void) { tipc_eth_media_stop(); tipc_net_stop(); @@ -143,10 +115,11 @@ int tipc_core_start_net(unsigned long addr) { int res; - if ((res = tipc_net_start(addr)) || - (res = tipc_eth_media_start())) { + res = tipc_net_start(addr); + if (!res) + res = tipc_eth_media_start(); + if (res) tipc_core_stop_net(); - } return res; } @@ -154,7 +127,7 @@ int tipc_core_start_net(unsigned long addr) * tipc_core_stop - switch TIPC from SINGLE NODE to NOT RUNNING mode */ -void tipc_core_stop(void) +static void tipc_core_stop(void) { if (tipc_mode != TIPC_NODE_MODE) return; @@ -165,17 +138,17 @@ void tipc_core_stop(void) tipc_handler_stop(); tipc_cfg_stop(); tipc_subscr_stop(); - tipc_reg_stop(); tipc_nametbl_stop(); tipc_ref_table_stop(); tipc_socket_stop(); + tipc_log_resize(0); } /** * tipc_core_start - switch TIPC from NOT RUNNING to SINGLE NODE mode */ -int tipc_core_start(void) +static int tipc_core_start(void) { int res; @@ -185,16 +158,22 @@ int tipc_core_start(void) get_random_bytes(&tipc_random, sizeof(tipc_random)); tipc_mode = TIPC_NODE_MODE; - if ((res = tipc_handler_start()) || - (res = tipc_ref_table_init(tipc_max_ports, tipc_random)) || - (res = tipc_reg_start()) || - (res = tipc_nametbl_init()) || - (res = tipc_k_signal((Handler)tipc_subscr_start, 0)) || - (res = tipc_k_signal((Handler)tipc_cfg_init, 0)) || - (res = tipc_netlink_start()) || - (res = tipc_socket_init())) { + res = tipc_handler_start(); + if (!res) + res = tipc_ref_table_init(tipc_max_ports, tipc_random); + if (!res) + res = tipc_nametbl_init(); + if (!res) + res = tipc_k_signal((Handler)tipc_subscr_start, 0); + if (!res) + res = tipc_k_signal((Handler)tipc_cfg_init, 0); + if (!res) + res = tipc_netlink_start(); + if (!res) + res = tipc_socket_init(); + if (res) tipc_core_stop(); - } + return res; } @@ -203,7 +182,9 @@ static int __init tipc_init(void) { int res; - tipc_log_resize(CONFIG_TIPC_LOG); + if (tipc_log_resize(CONFIG_TIPC_LOG) != 0) + warn("Unable to create log buffer\n"); + info("Activated (version " TIPC_MOD_VER " compiled " __DATE__ " " __TIME__ ")\n"); @@ -212,13 +193,11 @@ static int __init tipc_init(void) tipc_max_publications = 10000; tipc_max_subscriptions = 2000; tipc_max_ports = CONFIG_TIPC_PORTS; - tipc_max_zones = CONFIG_TIPC_ZONES; - tipc_max_clusters = CONFIG_TIPC_CLUSTERS; tipc_max_nodes = CONFIG_TIPC_NODES; - tipc_max_slaves = CONFIG_TIPC_SLAVE_NODES; tipc_net_id = 4711; - if ((res = tipc_core_start())) + res = tipc_core_start(); + if (res) err("Unable to start in single node mode\n"); else info("Started in single node mode\n"); @@ -230,7 +209,6 @@ static void __exit tipc_exit(void) tipc_core_stop_net(); tipc_core_stop(); info("Deactivated\n"); - tipc_log_resize(0); } module_init(tipc_init); @@ -239,60 +217,3 @@ module_exit(tipc_exit); MODULE_DESCRIPTION("TIPC: Transparent Inter Process Communication"); MODULE_LICENSE("Dual BSD/GPL"); MODULE_VERSION(TIPC_MOD_VER); - -/* Native TIPC API for kernel-space applications (see tipc.h) */ - -EXPORT_SYMBOL(tipc_attach); -EXPORT_SYMBOL(tipc_detach); -EXPORT_SYMBOL(tipc_get_addr); -EXPORT_SYMBOL(tipc_get_mode); -EXPORT_SYMBOL(tipc_createport); -EXPORT_SYMBOL(tipc_deleteport); -EXPORT_SYMBOL(tipc_ownidentity); -EXPORT_SYMBOL(tipc_portimportance); -EXPORT_SYMBOL(tipc_set_portimportance); -EXPORT_SYMBOL(tipc_portunreliable); -EXPORT_SYMBOL(tipc_set_portunreliable); -EXPORT_SYMBOL(tipc_portunreturnable); -EXPORT_SYMBOL(tipc_set_portunreturnable); -EXPORT_SYMBOL(tipc_publish); -EXPORT_SYMBOL(tipc_withdraw); -EXPORT_SYMBOL(tipc_connect2port); -EXPORT_SYMBOL(tipc_disconnect); -EXPORT_SYMBOL(tipc_shutdown); -EXPORT_SYMBOL(tipc_isconnected); -EXPORT_SYMBOL(tipc_peer); -EXPORT_SYMBOL(tipc_ref_valid); -EXPORT_SYMBOL(tipc_send); -EXPORT_SYMBOL(tipc_send_buf); -EXPORT_SYMBOL(tipc_send2name); -EXPORT_SYMBOL(tipc_forward2name); -EXPORT_SYMBOL(tipc_send_buf2name); -EXPORT_SYMBOL(tipc_forward_buf2name); -EXPORT_SYMBOL(tipc_send2port); -EXPORT_SYMBOL(tipc_forward2port); -EXPORT_SYMBOL(tipc_send_buf2port); -EXPORT_SYMBOL(tipc_forward_buf2port); -EXPORT_SYMBOL(tipc_multicast); -/* EXPORT_SYMBOL(tipc_multicast_buf); not available yet */ -EXPORT_SYMBOL(tipc_ispublished); -EXPORT_SYMBOL(tipc_available_nodes); - -/* TIPC API for external bearers (see tipc_bearer.h) */ - -EXPORT_SYMBOL(tipc_block_bearer); -EXPORT_SYMBOL(tipc_continue); -EXPORT_SYMBOL(tipc_disable_bearer); -EXPORT_SYMBOL(tipc_enable_bearer); -EXPORT_SYMBOL(tipc_recv_msg); -EXPORT_SYMBOL(tipc_register_media); - -/* TIPC API for external APIs (see tipc_port.h) */ - -EXPORT_SYMBOL(tipc_createport_raw); -EXPORT_SYMBOL(tipc_reject_msg); -EXPORT_SYMBOL(tipc_send_buf_fast); -EXPORT_SYMBOL(tipc_acknowledge); -EXPORT_SYMBOL(tipc_get_port); -EXPORT_SYMBOL(tipc_get_handle); - diff --git a/net/tipc/core.h b/net/tipc/core.h index 188799017abd..997158546e25 100644 --- a/net/tipc/core.h +++ b/net/tipc/core.h @@ -39,10 +39,6 @@ #include <linux/tipc.h> #include <linux/tipc_config.h> -#include <net/tipc/tipc_msg.h> -#include <net/tipc/tipc_port.h> -#include <net/tipc/tipc_bearer.h> -#include <net/tipc/tipc.h> #include <linux/types.h> #include <linux/kernel.h> #include <linux/errno.h> @@ -62,6 +58,9 @@ #define TIPC_MOD_VER "2.0.0" +struct tipc_msg; /* msg.h */ +struct print_buf; /* log.h */ + /* * TIPC sanity test macros */ @@ -83,7 +82,6 @@ * Note: TIPC_LOG is configured to echo its output to the system console; * user-defined buffers can be configured to do the same thing. */ - extern struct print_buf *const TIPC_NULL; extern struct print_buf *const TIPC_CONS; extern struct print_buf *const TIPC_LOG; @@ -98,73 +96,35 @@ void tipc_printf(struct print_buf *, const char *fmt, ...); #define TIPC_OUTPUT TIPC_LOG #endif -/* - * TIPC can be configured to send system messages to TIPC_OUTPUT - * or to the system console only. - */ - -#ifdef CONFIG_TIPC_DEBUG - #define err(fmt, arg...) tipc_printf(TIPC_OUTPUT, \ - KERN_ERR "TIPC: " fmt, ## arg) + KERN_ERR "TIPC: " fmt, ## arg) #define warn(fmt, arg...) tipc_printf(TIPC_OUTPUT, \ - KERN_WARNING "TIPC: " fmt, ## arg) + KERN_WARNING "TIPC: " fmt, ## arg) #define info(fmt, arg...) tipc_printf(TIPC_OUTPUT, \ - KERN_NOTICE "TIPC: " fmt, ## arg) - -#else - -#define err(fmt, arg...) printk(KERN_ERR "TIPC: " fmt , ## arg) -#define info(fmt, arg...) printk(KERN_INFO "TIPC: " fmt , ## arg) -#define warn(fmt, arg...) printk(KERN_WARNING "TIPC: " fmt , ## arg) + KERN_NOTICE "TIPC: " fmt, ## arg) -#endif +#ifdef CONFIG_TIPC_DEBUG /* * DBG_OUTPUT is the destination print buffer for debug messages. - * It defaults to the the null print buffer, but can be redefined - * (typically in the individual .c files being debugged) to allow - * selected debug messages to be generated where needed. */ #ifndef DBG_OUTPUT -#define DBG_OUTPUT TIPC_NULL +#define DBG_OUTPUT TIPC_LOG #endif -/* - * TIPC can be configured to send debug messages to the specified print buffer - * (typically DBG_OUTPUT) or to suppress them entirely. - */ +#define dbg(fmt, arg...) tipc_printf(DBG_OUTPUT, KERN_DEBUG fmt, ## arg); -#ifdef CONFIG_TIPC_DEBUG - -#define dbg(fmt, arg...) \ - do { \ - if (DBG_OUTPUT != TIPC_NULL) \ - tipc_printf(DBG_OUTPUT, fmt, ## arg); \ - } while (0) -#define msg_dbg(msg, txt) \ - do { \ - if (DBG_OUTPUT != TIPC_NULL) \ - tipc_msg_dbg(DBG_OUTPUT, msg, txt); \ - } while (0) -#define dump(fmt, arg...) \ - do { \ - if (DBG_OUTPUT != TIPC_NULL) \ - tipc_dump_dbg(DBG_OUTPUT, fmt, ##arg); \ - } while (0) +#define msg_dbg(msg, txt) tipc_msg_dbg(DBG_OUTPUT, msg, txt); void tipc_msg_dbg(struct print_buf *, struct tipc_msg *, const char *); -void tipc_dump_dbg(struct print_buf *, const char *fmt, ...); #else #define dbg(fmt, arg...) do {} while (0) #define msg_dbg(msg, txt) do {} while (0) -#define dump(fmt, arg...) do {} while (0) -#define tipc_msg_dbg(...) do {} while (0) -#define tipc_dump_dbg(...) do {} while (0) +#define tipc_msg_dbg(buf, msg, txt) do {} while (0) #endif @@ -176,14 +136,18 @@ void tipc_dump_dbg(struct print_buf *, const char *fmt, ...); #define ELINKCONG EAGAIN /* link congestion <=> resource unavailable */ /* + * TIPC operating mode routines + */ +#define TIPC_NOT_RUNNING 0 +#define TIPC_NODE_MODE 1 +#define TIPC_NET_MODE 2 + +/* * Global configuration variables */ extern u32 tipc_own_addr; -extern int tipc_max_zones; -extern int tipc_max_clusters; extern int tipc_max_nodes; -extern int tipc_max_slaves; extern int tipc_max_ports; extern int tipc_max_subscriptions; extern int tipc_max_publications; @@ -204,10 +168,7 @@ extern atomic_t tipc_user_count; * Routines available to privileged subsystems */ -extern int tipc_core_start(void); -extern void tipc_core_stop(void); -extern int tipc_core_start_net(unsigned long addr); -extern void tipc_core_stop_net(void); +extern int tipc_core_start_net(unsigned long); extern int tipc_handler_start(void); extern void tipc_handler_stop(void); extern int tipc_netlink_start(void); @@ -245,7 +206,6 @@ u32 tipc_k_signal(Handler routine, unsigned long argument); static inline void k_init_timer(struct timer_list *timer, Handler routine, unsigned long argument) { - dbg("initializing timer %p\n", timer); setup_timer(timer, routine, argument); } @@ -265,7 +225,6 @@ static inline void k_init_timer(struct timer_list *timer, Handler routine, static inline void k_start_timer(struct timer_list *timer, unsigned long msec) { - dbg("starting timer %p for %u\n", timer, msec); mod_timer(timer, jiffies + msecs_to_jiffies(msec) + 1); } @@ -282,7 +241,6 @@ static inline void k_start_timer(struct timer_list *timer, unsigned long msec) static inline void k_cancel_timer(struct timer_list *timer) { - dbg("cancelling timer %p\n", timer); del_timer_sync(timer); } @@ -300,7 +258,6 @@ static inline void k_cancel_timer(struct timer_list *timer) static inline void k_term_timer(struct timer_list *timer) { - dbg("terminating timer %p\n", timer); } @@ -328,7 +285,7 @@ static inline struct tipc_msg *buf_msg(struct sk_buff *skb) return (struct tipc_msg *)skb->data; } -extern struct sk_buff *buf_acquire(u32 size); +extern struct sk_buff *tipc_buf_acquire(u32 size); /** * buf_discard - frees a TIPC message buffer diff --git a/net/tipc/discover.c b/net/tipc/discover.c index fc1fcf5e6b53..fa026bd91a68 100644 --- a/net/tipc/discover.c +++ b/net/tipc/discover.c @@ -35,27 +35,13 @@ */ #include "core.h" -#include "dbg.h" #include "link.h" -#include "zone.h" #include "discover.h" -#include "port.h" -#include "name_table.h" #define TIPC_LINK_REQ_INIT 125 /* min delay during bearer start up */ #define TIPC_LINK_REQ_FAST 2000 /* normal delay if bearer has no links */ #define TIPC_LINK_REQ_SLOW 600000 /* normal delay if bearer has links */ -#if 0 -#define GET_NODE_INFO 300 -#define GET_NODE_INFO_RESULT 301 -#define FORWARD_LINK_PROBE 302 -#define LINK_REQUEST_REJECTED 303 -#define LINK_REQUEST_ACCEPTED 304 -#define DROP_LINK_REQUEST 305 -#define CHECK_LINK_COUNT 306 -#endif - /* * TODO: Most of the inter-cluster setup stuff should be * rewritten, and be made conformant with specification. @@ -78,30 +64,6 @@ struct link_req { unsigned int timer_intv; }; - -#if 0 -int disc_create_link(const struct tipc_link_create *argv) -{ - /* - * Code for inter cluster link setup here - */ - return TIPC_OK; -} -#endif - -/* - * disc_lost_link(): A link has lost contact - */ - -void tipc_disc_link_event(u32 addr, char *name, int up) -{ - if (in_own_cluster(addr)) - return; - /* - * Code for inter cluster link setup here - */ -} - /** * tipc_disc_init_msg - initialize a link setup message * @type: message type (request or response) @@ -115,7 +77,7 @@ static struct sk_buff *tipc_disc_init_msg(u32 type, u32 dest_domain, struct bearer *b_ptr) { - struct sk_buff *buf = buf_acquire(DSC_H_SIZE); + struct sk_buff *buf = tipc_buf_acquire(DSC_H_SIZE); struct tipc_msg *msg; if (buf) { @@ -168,8 +130,7 @@ void tipc_disc_recv_msg(struct sk_buff *buf, struct bearer *b_ptr) u32 net_id = msg_bc_netid(msg); u32 type = msg_type(msg); - msg_get_media_addr(msg,&media_addr); - msg_dbg(msg, "RECV:"); + msg_get_media_addr(msg, &media_addr); buf_discard(buf); if (net_id != tipc_net_id) @@ -185,10 +146,6 @@ void tipc_disc_recv_msg(struct sk_buff *buf, struct bearer *b_ptr) } if (!tipc_in_scope(dest, tipc_own_addr)) return; - if (is_slave(tipc_own_addr) && is_slave(orig)) - return; - if (is_slave(orig) && !in_own_cluster(orig)) - return; if (in_own_cluster(orig)) { /* Always accept link here */ struct sk_buff *rbuf; @@ -196,16 +153,22 @@ void tipc_disc_recv_msg(struct sk_buff *buf, struct bearer *b_ptr) struct tipc_node *n_ptr = tipc_node_find(orig); int link_fully_up; - dbg(" in own cluster\n"); if (n_ptr == NULL) { n_ptr = tipc_node_create(orig); if (!n_ptr) return; } spin_lock_bh(&n_ptr->lock); + + /* Don't talk to neighbor during cleanup after last session */ + + if (n_ptr->cleanup_required) { + spin_unlock_bh(&n_ptr->lock); + return; + } + link = n_ptr->links[b_ptr->identity]; if (!link) { - dbg("creating link\n"); link = tipc_link_create(b_ptr, orig, &media_addr); if (!link) { spin_unlock_bh(&n_ptr->lock); @@ -230,7 +193,6 @@ void tipc_disc_recv_msg(struct sk_buff *buf, struct bearer *b_ptr) return; rbuf = tipc_disc_init_msg(DSC_RESP_MSG, 1, orig, b_ptr); if (rbuf != NULL) { - msg_dbg(buf_msg(rbuf),"SEND:"); b_ptr->media->send_msg(rbuf, &b_ptr->publ, &media_addr); buf_discard(rbuf); } diff --git a/net/tipc/discover.h b/net/tipc/discover.h index c36eaeb7d5d0..d2c3cffb79fc 100644 --- a/net/tipc/discover.h +++ b/net/tipc/discover.h @@ -37,8 +37,6 @@ #ifndef _TIPC_DISCOVER_H #define _TIPC_DISCOVER_H -#include "core.h" - struct link_req; struct link_req *tipc_disc_init_link_req(struct bearer *b_ptr, @@ -50,9 +48,4 @@ void tipc_disc_stop_link_req(struct link_req *req); void tipc_disc_recv_msg(struct sk_buff *buf, struct bearer *b_ptr); -void tipc_disc_link_event(u32 addr, char *name, int up); -#if 0 -int disc_create_link(const struct tipc_link_create *argv); -#endif - #endif diff --git a/net/tipc/eth_media.c b/net/tipc/eth_media.c index 6230d16020c4..b69092eb95d8 100644 --- a/net/tipc/eth_media.c +++ b/net/tipc/eth_media.c @@ -34,12 +34,8 @@ * POSSIBILITY OF SUCH DAMAGE. */ -#include <net/tipc/tipc.h> -#include <net/tipc/tipc_bearer.h> -#include <net/tipc/tipc_msg.h> -#include <linux/netdevice.h> -#include <linux/slab.h> -#include <net/net_namespace.h> +#include "core.h" +#include "bearer.h" #define MAX_ETH_BEARERS 2 #define ETH_LINK_PRIORITY TIPC_DEF_LINK_PRI @@ -60,7 +56,7 @@ struct eth_bearer { }; static struct eth_bearer eth_bearers[MAX_ETH_BEARERS]; -static int eth_started = 0; +static int eth_started; static struct notifier_block notifier; /** @@ -72,17 +68,26 @@ static int send_msg(struct sk_buff *buf, struct tipc_bearer *tb_ptr, { struct sk_buff *clone; struct net_device *dev; + int delta; clone = skb_clone(buf, GFP_ATOMIC); - if (clone) { - skb_reset_network_header(clone); - dev = ((struct eth_bearer *)(tb_ptr->usr_handle))->dev; - clone->dev = dev; - dev_hard_header(clone, dev, ETH_P_TIPC, - &dest->dev_addr.eth_addr, - dev->dev_addr, clone->len); - dev_queue_xmit(clone); + if (!clone) + return 0; + + dev = ((struct eth_bearer *)(tb_ptr->usr_handle))->dev; + delta = dev->hard_header_len - skb_headroom(buf); + + if ((delta > 0) && + pskb_expand_head(clone, SKB_DATA_ALIGN(delta), 0, GFP_ATOMIC)) { + kfree_skb(clone); + return 0; } + + skb_reset_network_header(clone); + clone->dev = dev; + dev_hard_header(clone, dev, ETH_P_TIPC, &dest->dev_addr.eth_addr, + dev->dev_addr, clone->len); + dev_queue_xmit(clone); return 0; } @@ -92,15 +97,12 @@ static int send_msg(struct sk_buff *buf, struct tipc_bearer *tb_ptr, * Accept only packets explicitly sent to this node, or broadcast packets; * ignores packets sent using Ethernet multicast, and traffic sent to other * nodes (which can happen if interface is running in promiscuous mode). - * Routine truncates any Ethernet padding/CRC appended to the message, - * and ensures message size matches actual length */ static int recv_msg(struct sk_buff *buf, struct net_device *dev, struct packet_type *pt, struct net_device *orig_dev) { struct eth_bearer *eb_ptr = (struct eth_bearer *)pt->af_packet_priv; - u32 size; if (!net_eq(dev_net(dev), &init_net)) { kfree_skb(buf); @@ -109,13 +111,9 @@ static int recv_msg(struct sk_buff *buf, struct net_device *dev, if (likely(eb_ptr->bearer)) { if (likely(buf->pkt_type <= PACKET_BROADCAST)) { - size = msg_size((struct tipc_msg *)buf->data); - skb_trim(buf, size); - if (likely(buf->len == size)) { - buf->next = NULL; - tipc_recv_msg(buf, eb_ptr->bearer); - return 0; - } + buf->next = NULL; + tipc_recv_msg(buf, eb_ptr->bearer); + return 0; } } kfree_skb(buf); @@ -133,10 +131,20 @@ static int enable_bearer(struct tipc_bearer *tb_ptr) struct eth_bearer *eb_ptr = ð_bearers[0]; struct eth_bearer *stop = ð_bearers[MAX_ETH_BEARERS]; char *driver_name = strchr((const char *)tb_ptr->name, ':') + 1; + int pending_dev = 0; + + /* Find unused Ethernet bearer structure */ + + while (eb_ptr->dev) { + if (!eb_ptr->bearer) + pending_dev++; + if (++eb_ptr == stop) + return pending_dev ? -EAGAIN : -EDQUOT; + } /* Find device with specified name */ - for_each_netdev(&init_net, pdev){ + for_each_netdev(&init_net, pdev) { if (!strncmp(pdev->name, driver_name, IFNAMSIZ)) { dev = pdev; break; @@ -147,7 +155,8 @@ static int enable_bearer(struct tipc_bearer *tb_ptr) /* Find Ethernet bearer for device (or create one) */ - for (;(eb_ptr != stop) && eb_ptr->dev && (eb_ptr->dev != dev); eb_ptr++); + while ((eb_ptr != stop) && eb_ptr->dev && (eb_ptr->dev != dev)) + eb_ptr++; if (eb_ptr == stop) return -EDQUOT; if (!eb_ptr->dev) { diff --git a/net/tipc/handler.c b/net/tipc/handler.c index 0c70010a7dfe..274c98e164b7 100644 --- a/net/tipc/handler.c +++ b/net/tipc/handler.c @@ -45,7 +45,7 @@ struct queue_item { static struct kmem_cache *tipc_queue_item_cache; static struct list_head signal_queue_head; static DEFINE_SPINLOCK(qitem_lock); -static int handler_enabled = 0; +static int handler_enabled; static void process_signal_queue(unsigned long dummy); diff --git a/net/tipc/link.c b/net/tipc/link.c index a3616b99529b..18702f58d111 100644 --- a/net/tipc/link.c +++ b/net/tipc/link.c @@ -35,19 +35,11 @@ */ #include "core.h" -#include "dbg.h" #include "link.h" -#include "net.h" -#include "node.h" #include "port.h" -#include "addr.h" -#include "node_subscr.h" #include "name_distr.h" -#include "bearer.h" -#include "name_table.h" #include "discover.h" #include "config.h" -#include "bcast.h" /* @@ -57,12 +49,6 @@ #define INVALID_SESSION 0x10000 /* - * Limit for deferred reception queue: - */ - -#define DEF_QUEUE_LIMIT 256u - -/* * Link state events: */ @@ -99,23 +85,6 @@ struct link_name { char if_peer[TIPC_MAX_IF_NAME]; }; -#if 0 - -/* LINK EVENT CODE IS NOT SUPPORTED AT PRESENT */ - -/** - * struct link_event - link up/down event notification - */ - -struct link_event { - u32 addr; - int up; - void (*fcn)(u32, char *, int); - char name[TIPC_MAX_LINK_NAME]; -}; - -#endif - static void link_handle_out_of_seq_msg(struct link *l_ptr, struct sk_buff *buf); static void link_recv_proto_msg(struct link *l_ptr, struct sk_buff *buf); @@ -127,71 +96,9 @@ static int link_send_sections_long(struct port *sender, static void link_check_defragm_bufs(struct link *l_ptr); static void link_state_event(struct link *l_ptr, u32 event); static void link_reset_statistics(struct link *l_ptr); -static void link_print(struct link *l_ptr, struct print_buf *buf, - const char *str); - -/* - * Debugging code used by link routines only - * - * When debugging link problems on a system that has multiple links, - * the standard TIPC debugging routines may not be useful since they - * allow the output from multiple links to be intermixed. For this reason - * routines of the form "dbg_link_XXX()" have been created that will capture - * debug info into a link's personal print buffer, which can then be dumped - * into the TIPC system log (TIPC_LOG) upon request. - * - * To enable per-link debugging, use LINK_LOG_BUF_SIZE to specify the size - * of the print buffer used by each link. If LINK_LOG_BUF_SIZE is set to 0, - * the dbg_link_XXX() routines simply send their output to the standard - * debug print buffer (DBG_OUTPUT), if it has been defined; this can be useful - * when there is only a single link in the system being debugged. - * - * Notes: - * - When enabled, LINK_LOG_BUF_SIZE should be set to at least TIPC_PB_MIN_SIZE - * - "l_ptr" must be valid when using dbg_link_XXX() macros - */ - -#define LINK_LOG_BUF_SIZE 0 - -#define dbg_link(fmt, arg...) \ - do { \ - if (LINK_LOG_BUF_SIZE) \ - tipc_printf(&l_ptr->print_buf, fmt, ## arg); \ - } while (0) -#define dbg_link_msg(msg, txt) \ - do { \ - if (LINK_LOG_BUF_SIZE) \ - tipc_msg_dbg(&l_ptr->print_buf, msg, txt); \ - } while (0) -#define dbg_link_state(txt) \ - do { \ - if (LINK_LOG_BUF_SIZE) \ - link_print(l_ptr, &l_ptr->print_buf, txt); \ - } while (0) -#define dbg_link_dump() do { \ - if (LINK_LOG_BUF_SIZE) { \ - tipc_printf(LOG, "\n\nDumping link <%s>:\n", l_ptr->name); \ - tipc_printbuf_move(LOG, &l_ptr->print_buf); \ - } \ -} while (0) - -static void dbg_print_link(struct link *l_ptr, const char *str) -{ - if (DBG_OUTPUT != TIPC_NULL) - link_print(l_ptr, DBG_OUTPUT, str); -} - -static void dbg_print_buf_chain(struct sk_buff *root_buf) -{ - if (DBG_OUTPUT != TIPC_NULL) { - struct sk_buff *buf = root_buf; - - while (buf) { - msg_dbg(buf_msg(buf), "In chain: "); - buf = buf->next; - } - } -} +static void link_print(struct link *l_ptr, const char *str); +static void link_start(struct link *l_ptr); +static int link_send_long_buf(struct link *l_ptr, struct sk_buff *buf); /* * Simple link routines @@ -239,13 +146,13 @@ int tipc_link_is_up(struct link *l_ptr) { if (!l_ptr) return 0; - return (link_working_working(l_ptr) || link_working_unknown(l_ptr)); + return link_working_working(l_ptr) || link_working_unknown(l_ptr); } int tipc_link_is_active(struct link *l_ptr) { - return ((l_ptr->owner->active_links[0] == l_ptr) || - (l_ptr->owner->active_links[1] == l_ptr)); + return (l_ptr->owner->active_links[0] == l_ptr) || + (l_ptr->owner->active_links[1] == l_ptr); } /** @@ -280,14 +187,17 @@ static int link_name_validate(const char *name, struct link_name *name_parts) /* ensure all component parts of link name are present */ addr_local = name_copy; - if ((if_local = strchr(addr_local, ':')) == NULL) + if_local = strchr(addr_local, ':'); + if (if_local == NULL) return 0; *(if_local++) = 0; - if ((addr_peer = strchr(if_local, '-')) == NULL) + addr_peer = strchr(if_local, '-'); + if (addr_peer == NULL) return 0; *(addr_peer++) = 0; if_local_len = addr_peer - if_local; - if ((if_peer = strchr(addr_peer, ':')) == NULL) + if_peer = strchr(addr_peer, ':'); + if (if_peer == NULL) return 0; *(if_peer++) = 0; if_peer_len = strlen(if_peer) + 1; @@ -406,17 +316,6 @@ struct link *tipc_link_create(struct bearer *b_ptr, const u32 peer, return NULL; } - if (LINK_LOG_BUF_SIZE) { - char *pb = kmalloc(LINK_LOG_BUF_SIZE, GFP_ATOMIC); - - if (!pb) { - kfree(l_ptr); - warn("Link creation failed, no memory for print buffer\n"); - return NULL; - } - tipc_printbuf_init(&l_ptr->print_buf, pb, LINK_LOG_BUF_SIZE); - } - l_ptr->addr = peer; if_name = strchr(b_ptr->publ.name, ':') + 1; sprintf(l_ptr->name, "%u.%u.%u:%s-%u.%u.%u:", @@ -451,18 +350,13 @@ struct link *tipc_link_create(struct bearer *b_ptr, const u32 peer, l_ptr->owner = tipc_node_attach_link(l_ptr); if (!l_ptr->owner) { - if (LINK_LOG_BUF_SIZE) - kfree(l_ptr->print_buf.buf); kfree(l_ptr); return NULL; } k_init_timer(&l_ptr->timer, (Handler)link_timeout, (unsigned long)l_ptr); list_add_tail(&l_ptr->link_list, &b_ptr->links); - tipc_k_signal((Handler)tipc_link_start, (unsigned long)l_ptr); - - dbg("tipc_link_create(): tolerance = %u,cont intv = %u, abort_limit = %u\n", - l_ptr->tolerance, l_ptr->continuity_interval, l_ptr->abort_limit); + tipc_k_signal((Handler)link_start, (unsigned long)l_ptr); return l_ptr; } @@ -483,8 +377,6 @@ void tipc_link_delete(struct link *l_ptr) return; } - dbg("tipc_link_delete()\n"); - k_cancel_timer(&l_ptr->timer); tipc_node_lock(l_ptr->owner); @@ -492,16 +384,13 @@ void tipc_link_delete(struct link *l_ptr) tipc_node_detach_link(l_ptr->owner, l_ptr); tipc_link_stop(l_ptr); list_del_init(&l_ptr->link_list); - if (LINK_LOG_BUF_SIZE) - kfree(l_ptr->print_buf.buf); tipc_node_unlock(l_ptr->owner); k_term_timer(&l_ptr->timer); kfree(l_ptr); } -void tipc_link_start(struct link *l_ptr) +static void link_start(struct link *l_ptr) { - dbg("tipc_link_start %x\n", l_ptr); link_state_event(l_ptr, STARTING_EVT); } @@ -634,39 +523,9 @@ void tipc_link_stop(struct link *l_ptr) l_ptr->proto_msg_queue = NULL; } -#if 0 - /* LINK EVENT CODE IS NOT SUPPORTED AT PRESENT */ - -static void link_recv_event(struct link_event *ev) -{ - ev->fcn(ev->addr, ev->name, ev->up); - kfree(ev); -} - -static void link_send_event(void (*fcn)(u32 a, char *n, int up), - struct link *l_ptr, int up) -{ - struct link_event *ev; - - ev = kmalloc(sizeof(*ev), GFP_ATOMIC); - if (!ev) { - warn("Link event allocation failure\n"); - return; - } - ev->addr = l_ptr->addr; - ev->up = up; - ev->fcn = fcn; - memcpy(ev->name, l_ptr->name, TIPC_MAX_LINK_NAME); - tipc_k_signal((Handler)link_recv_event, (unsigned long)ev); -} - -#else - #define link_send_event(fcn, l_ptr, up) do { } while (0) -#endif - void tipc_link_reset(struct link *l_ptr) { struct sk_buff *buf; @@ -683,17 +542,13 @@ void tipc_link_reset(struct link *l_ptr) link_init_max_pkt(l_ptr); l_ptr->state = RESET_UNKNOWN; - dbg_link_state("Resetting Link\n"); if ((prev_state == RESET_UNKNOWN) || (prev_state == RESET_RESET)) return; tipc_node_link_down(l_ptr->owner, l_ptr); tipc_bearer_remove_dest(l_ptr->b_ptr, l_ptr->addr); -#if 0 - tipc_printf(TIPC_CONS, "\nReset link <%s>\n", l_ptr->name); - dbg_link_dump(); -#endif + if (was_active_link && tipc_node_has_active_links(l_ptr->owner) && l_ptr->owner->permit_changeover) { l_ptr->reset_checkpoint = checkpoint; @@ -760,25 +615,18 @@ static void link_state_event(struct link *l_ptr, unsigned event) return; /* Not yet. */ if (link_blocked(l_ptr)) { - if (event == TIMEOUT_EVT) { + if (event == TIMEOUT_EVT) link_set_timer(l_ptr, cont_intv); - } return; /* Changeover going on */ } - dbg_link("STATE_EV: <%s> ", l_ptr->name); switch (l_ptr->state) { case WORKING_WORKING: - dbg_link("WW/"); switch (event) { case TRAFFIC_MSG_EVT: - dbg_link("TRF-"); - /* fall through */ case ACTIVATE_MSG: - dbg_link("ACT\n"); break; case TIMEOUT_EVT: - dbg_link("TIM "); if (l_ptr->next_in_no != l_ptr->checkpoint) { l_ptr->checkpoint = l_ptr->next_in_no; if (tipc_bclink_acks_missing(l_ptr->owner)) { @@ -793,7 +641,6 @@ static void link_state_event(struct link *l_ptr, unsigned event) link_set_timer(l_ptr, cont_intv); break; } - dbg_link(" -> WU\n"); l_ptr->state = WORKING_UNKNOWN; l_ptr->fsm_msg_cnt = 0; tipc_link_send_proto_msg(l_ptr, STATE_MSG, 1, 0, 0, 0, 0); @@ -801,7 +648,6 @@ static void link_state_event(struct link *l_ptr, unsigned event) link_set_timer(l_ptr, cont_intv / 4); break; case RESET_MSG: - dbg_link("RES -> RR\n"); info("Resetting link <%s>, requested by peer\n", l_ptr->name); tipc_link_reset(l_ptr); @@ -816,18 +662,14 @@ static void link_state_event(struct link *l_ptr, unsigned event) } break; case WORKING_UNKNOWN: - dbg_link("WU/"); switch (event) { case TRAFFIC_MSG_EVT: - dbg_link("TRF-"); case ACTIVATE_MSG: - dbg_link("ACT -> WW\n"); l_ptr->state = WORKING_WORKING; l_ptr->fsm_msg_cnt = 0; link_set_timer(l_ptr, cont_intv); break; case RESET_MSG: - dbg_link("RES -> RR\n"); info("Resetting link <%s>, requested by peer " "while probing\n", l_ptr->name); tipc_link_reset(l_ptr); @@ -838,9 +680,7 @@ static void link_state_event(struct link *l_ptr, unsigned event) link_set_timer(l_ptr, cont_intv); break; case TIMEOUT_EVT: - dbg_link("TIM "); if (l_ptr->next_in_no != l_ptr->checkpoint) { - dbg_link("-> WW\n"); l_ptr->state = WORKING_WORKING; l_ptr->fsm_msg_cnt = 0; l_ptr->checkpoint = l_ptr->next_in_no; @@ -851,16 +691,11 @@ static void link_state_event(struct link *l_ptr, unsigned event) } link_set_timer(l_ptr, cont_intv); } else if (l_ptr->fsm_msg_cnt < l_ptr->abort_limit) { - dbg_link("Probing %u/%u,timer = %u ms)\n", - l_ptr->fsm_msg_cnt, l_ptr->abort_limit, - cont_intv / 4); tipc_link_send_proto_msg(l_ptr, STATE_MSG, 1, 0, 0, 0, 0); l_ptr->fsm_msg_cnt++; link_set_timer(l_ptr, cont_intv / 4); } else { /* Link has failed */ - dbg_link("-> RU (%u probes unanswered)\n", - l_ptr->fsm_msg_cnt); warn("Resetting link <%s>, peer not responding\n", l_ptr->name); tipc_link_reset(l_ptr); @@ -877,18 +712,13 @@ static void link_state_event(struct link *l_ptr, unsigned event) } break; case RESET_UNKNOWN: - dbg_link("RU/"); switch (event) { case TRAFFIC_MSG_EVT: - dbg_link("TRF-\n"); break; case ACTIVATE_MSG: other = l_ptr->owner->active_links[0]; - if (other && link_working_unknown(other)) { - dbg_link("ACT\n"); + if (other && link_working_unknown(other)) break; - } - dbg_link("ACT -> WW\n"); l_ptr->state = WORKING_WORKING; l_ptr->fsm_msg_cnt = 0; link_activate(l_ptr); @@ -897,8 +727,6 @@ static void link_state_event(struct link *l_ptr, unsigned event) link_set_timer(l_ptr, cont_intv); break; case RESET_MSG: - dbg_link("RES\n"); - dbg_link(" -> RR\n"); l_ptr->state = RESET_RESET; l_ptr->fsm_msg_cnt = 0; tipc_link_send_proto_msg(l_ptr, ACTIVATE_MSG, 1, 0, 0, 0, 0); @@ -906,11 +734,9 @@ static void link_state_event(struct link *l_ptr, unsigned event) link_set_timer(l_ptr, cont_intv); break; case STARTING_EVT: - dbg_link("START-"); l_ptr->started = 1; /* fall through */ case TIMEOUT_EVT: - dbg_link("TIM\n"); tipc_link_send_proto_msg(l_ptr, RESET_MSG, 0, 0, 0, 0, 0); l_ptr->fsm_msg_cnt++; link_set_timer(l_ptr, cont_intv); @@ -920,18 +746,12 @@ static void link_state_event(struct link *l_ptr, unsigned event) } break; case RESET_RESET: - dbg_link("RR/ "); switch (event) { case TRAFFIC_MSG_EVT: - dbg_link("TRF-"); - /* fall through */ case ACTIVATE_MSG: other = l_ptr->owner->active_links[0]; - if (other && link_working_unknown(other)) { - dbg_link("ACT\n"); + if (other && link_working_unknown(other)) break; - } - dbg_link("ACT -> WW\n"); l_ptr->state = WORKING_WORKING; l_ptr->fsm_msg_cnt = 0; link_activate(l_ptr); @@ -940,14 +760,11 @@ static void link_state_event(struct link *l_ptr, unsigned event) link_set_timer(l_ptr, cont_intv); break; case RESET_MSG: - dbg_link("RES\n"); break; case TIMEOUT_EVT: - dbg_link("TIM\n"); tipc_link_send_proto_msg(l_ptr, ACTIVATE_MSG, 0, 0, 0, 0, 0); l_ptr->fsm_msg_cnt++; link_set_timer(l_ptr, cont_intv); - dbg_link("fsm_msg_cnt %u\n", l_ptr->fsm_msg_cnt); break; default: err("Unknown link event %u in RR state\n", event); @@ -987,9 +804,6 @@ static int link_bundle_buf(struct link *l_ptr, skb_copy_to_linear_data_offset(bundler, to_pos, buf->data, size); msg_set_size(bundler_msg, to_pos + size); msg_set_msgcnt(bundler_msg, msg_msgcnt(bundler_msg) + 1); - dbg("Packed msg # %u(%u octets) into pos %u in buf(#%u)\n", - msg_msgcnt(bundler_msg), size, to_pos, msg_seqno(bundler_msg)); - msg_dbg(msg, "PACKD:"); buf_discard(buf); l_ptr->stats.sent_bundled++; return 1; @@ -1038,7 +852,6 @@ int tipc_link_send_buf(struct link *l_ptr, struct sk_buff *buf) return link_schedule_port(l_ptr, msg_origport(msg), size); } - msg_dbg(msg, "TIPC: Congestion, throwing away\n"); buf_discard(buf); if (imp > CONN_MANAGER) { warn("Resetting link <%s>, send queue full", l_ptr->name); @@ -1050,7 +863,7 @@ int tipc_link_send_buf(struct link *l_ptr, struct sk_buff *buf) /* Fragmentation needed ? */ if (size > max_packet) - return tipc_link_send_long_buf(l_ptr, buf); + return link_send_long_buf(l_ptr, buf); /* Packet can be queued or sent: */ @@ -1086,7 +899,7 @@ int tipc_link_send_buf(struct link *l_ptr, struct sk_buff *buf) /* Try creating a new bundle */ if (size <= max_packet * 2 / 3) { - struct sk_buff *bundler = buf_acquire(max_packet); + struct sk_buff *bundler = tipc_buf_acquire(max_packet); struct tipc_msg bundler_hdr; if (bundler) { @@ -1122,22 +935,16 @@ int tipc_link_send(struct sk_buff *buf, u32 dest, u32 selector) int res = -ELINKCONG; read_lock_bh(&tipc_net_lock); - n_ptr = tipc_node_select(dest, selector); + n_ptr = tipc_node_find(dest); if (n_ptr) { tipc_node_lock(n_ptr); l_ptr = n_ptr->active_links[selector & 1]; - if (l_ptr) { - dbg("tipc_link_send: found link %x for dest %x\n", l_ptr, dest); + if (l_ptr) res = tipc_link_send_buf(l_ptr, buf); - } else { - dbg("Attempt to send msg to unreachable node:\n"); - msg_dbg(buf_msg(buf),">>>"); + else buf_discard(buf); - } tipc_node_unlock(n_ptr); } else { - dbg("Attempt to send msg to unknown node:\n"); - msg_dbg(buf_msg(buf),">>>"); buf_discard(buf); } read_unlock_bh(&tipc_net_lock); @@ -1164,17 +971,14 @@ static int link_send_buf_fast(struct link *l_ptr, struct sk_buff *buf, if (likely(tipc_bearer_send(l_ptr->b_ptr, buf, &l_ptr->media_addr))) { l_ptr->unacked_window = 0; - msg_dbg(msg,"SENT_FAST:"); return res; } - dbg("failed sent fast...\n"); tipc_bearer_schedule(l_ptr->b_ptr, l_ptr); l_ptr->stats.bearer_congs++; l_ptr->next_out = buf; return res; } - } - else + } else *used_max_pkt = l_ptr->max_pkt; } return tipc_link_send_buf(l_ptr, buf); /* All other cases */ @@ -1198,12 +1002,10 @@ int tipc_send_buf_fast(struct sk_buff *buf, u32 destnode) return tipc_port_recv_msg(buf); read_lock_bh(&tipc_net_lock); - n_ptr = tipc_node_select(destnode, selector); + n_ptr = tipc_node_find(destnode); if (likely(n_ptr)) { tipc_node_lock(n_ptr); l_ptr = n_ptr->active_links[selector]; - dbg("send_fast: buf %x selected %x, destnode = %x\n", - buf, l_ptr, destnode); if (likely(l_ptr)) { res = link_send_buf_fast(l_ptr, buf, &dummy); tipc_node_unlock(n_ptr); @@ -1247,7 +1049,7 @@ again: !sender->user_port, &buf); read_lock_bh(&tipc_net_lock); - node = tipc_node_select(destaddr, selector); + node = tipc_node_find(destaddr); if (likely(node)) { tipc_node_lock(node); l_ptr = node->active_links[selector]; @@ -1330,10 +1132,10 @@ static int link_send_sections_long(struct port *sender, struct tipc_node *node; struct tipc_msg *hdr = &sender->publ.phdr; u32 dsz = msg_data_sz(hdr); - u32 max_pkt,fragm_sz,rest; + u32 max_pkt, fragm_sz, rest; struct tipc_msg fragm_hdr; - struct sk_buff *buf,*buf_chain,*prev; - u32 fragm_crs,fragm_rest,hsz,sect_rest; + struct sk_buff *buf, *buf_chain, *prev; + u32 fragm_crs, fragm_rest, hsz, sect_rest; const unchar *sect_crs; int curr_sect; u32 fragm_no; @@ -1353,7 +1155,6 @@ again: /* Prepare reusable fragment header: */ - msg_dbg(hdr, ">FRAGMENTING>"); tipc_msg_init(&fragm_hdr, MSG_FRAGMENTER, FIRST_FRAGMENT, INT_H_SIZE, msg_destnode(hdr)); msg_set_link_selector(&fragm_hdr, sender->publ.ref); @@ -1362,14 +1163,13 @@ again: /* Prepare header of first fragment: */ - buf_chain = buf = buf_acquire(max_pkt); + buf_chain = buf = tipc_buf_acquire(max_pkt); if (!buf) return -ENOMEM; buf->next = NULL; skb_copy_to_linear_data(buf, &fragm_hdr, INT_H_SIZE); hsz = msg_hdr_sz(hdr); skb_copy_to_linear_data_offset(buf, INT_H_SIZE, hdr, hsz); - msg_dbg(buf_msg(buf), ">BUILD>"); /* Chop up message: */ @@ -1412,14 +1212,14 @@ error: /* Initiate new fragment: */ if (rest <= fragm_sz) { fragm_sz = rest; - msg_set_type(&fragm_hdr,LAST_FRAGMENT); + msg_set_type(&fragm_hdr, LAST_FRAGMENT); } else { msg_set_type(&fragm_hdr, FRAGMENT); } msg_set_size(&fragm_hdr, fragm_sz + INT_H_SIZE); msg_set_fragm_no(&fragm_hdr, ++fragm_no); prev = buf; - buf = buf_acquire(fragm_sz + INT_H_SIZE); + buf = tipc_buf_acquire(fragm_sz + INT_H_SIZE); if (!buf) goto error; @@ -1428,16 +1228,14 @@ error: skb_copy_to_linear_data(buf, &fragm_hdr, INT_H_SIZE); fragm_crs = INT_H_SIZE; fragm_rest = fragm_sz; - msg_dbg(buf_msg(buf)," >BUILD>"); } - } - while (rest > 0); + } while (rest > 0); /* * Now we have a buffer chain. Select a link and check * that packet size is still OK */ - node = tipc_node_select(destaddr, sender->publ.ref & 1); + node = tipc_node_find(destaddr); if (likely(node)) { tipc_node_lock(node); l_ptr = node->active_links[sender->publ.ref & 1]; @@ -1478,7 +1276,6 @@ reject: l_ptr->stats.sent_fragments++; msg_set_long_msgno(msg, l_ptr->long_msg_seq_no); link_add_to_outqueue(l_ptr, buf, msg); - msg_dbg(msg, ">ADD>"); buf = next; } @@ -1520,14 +1317,12 @@ u32 tipc_link_push_packet(struct link *l_ptr) msg_set_ack(buf_msg(buf), mod(l_ptr->next_in_no - 1)); msg_set_bcast_ack(buf_msg(buf), l_ptr->owner->bclink.last_in); if (tipc_bearer_send(l_ptr->b_ptr, buf, &l_ptr->media_addr)) { - msg_dbg(buf_msg(buf), ">DEF-RETR>"); l_ptr->retransm_queue_head = mod(++r_q_head); l_ptr->retransm_queue_size = --r_q_size; l_ptr->stats.retransmitted++; return 0; } else { l_ptr->stats.bearer_congs++; - msg_dbg(buf_msg(buf), "|>DEF-RETR>"); return PUSH_FAILED; } } @@ -1537,15 +1332,13 @@ u32 tipc_link_push_packet(struct link *l_ptr) buf = l_ptr->proto_msg_queue; if (buf) { msg_set_ack(buf_msg(buf), mod(l_ptr->next_in_no - 1)); - msg_set_bcast_ack(buf_msg(buf),l_ptr->owner->bclink.last_in); + msg_set_bcast_ack(buf_msg(buf), l_ptr->owner->bclink.last_in); if (tipc_bearer_send(l_ptr->b_ptr, buf, &l_ptr->media_addr)) { - msg_dbg(buf_msg(buf), ">DEF-PROT>"); l_ptr->unacked_window = 0; buf_discard(buf); l_ptr->proto_msg_queue = NULL; return 0; } else { - msg_dbg(buf_msg(buf), "|>DEF-PROT>"); l_ptr->stats.bearer_congs++; return PUSH_FAILED; } @@ -1565,11 +1358,9 @@ u32 tipc_link_push_packet(struct link *l_ptr) if (tipc_bearer_send(l_ptr->b_ptr, buf, &l_ptr->media_addr)) { if (msg_user(msg) == MSG_BUNDLER) msg_set_type(msg, CLOSED_MSG); - msg_dbg(msg, ">PUSH-DATA>"); l_ptr->next_out = buf->next; return 0; } else { - msg_dbg(msg, "|PUSH-DATA|"); l_ptr->stats.bearer_congs++; return PUSH_FAILED; } @@ -1617,8 +1408,7 @@ static void link_reset_all(unsigned long addr) for (i = 0; i < MAX_BEARERS; i++) { if (n_ptr->links[i]) { - link_print(n_ptr->links[i], TIPC_OUTPUT, - "Resetting link\n"); + link_print(n_ptr->links[i], "Resetting link\n"); tipc_link_reset(n_ptr->links[i]); } } @@ -1632,13 +1422,12 @@ static void link_retransmit_failure(struct link *l_ptr, struct sk_buff *buf) struct tipc_msg *msg = buf_msg(buf); warn("Retransmission failure on link <%s>\n", l_ptr->name); - tipc_msg_dbg(TIPC_OUTPUT, msg, ">RETR-FAIL>"); if (l_ptr->addr) { /* Handle failure on standard link */ - link_print(l_ptr, TIPC_OUTPUT, "Resetting link\n"); + link_print(l_ptr, "Resetting link\n"); tipc_link_reset(l_ptr); } else { @@ -1648,21 +1437,21 @@ static void link_retransmit_failure(struct link *l_ptr, struct sk_buff *buf) struct tipc_node *n_ptr; char addr_string[16]; - tipc_printf(TIPC_OUTPUT, "Msg seq number: %u, ", msg_seqno(msg)); - tipc_printf(TIPC_OUTPUT, "Outstanding acks: %lu\n", - (unsigned long) TIPC_SKB_CB(buf)->handle); + info("Msg seq number: %u, ", msg_seqno(msg)); + info("Outstanding acks: %lu\n", + (unsigned long) TIPC_SKB_CB(buf)->handle); n_ptr = l_ptr->owner->next; tipc_node_lock(n_ptr); tipc_addr_string_fill(addr_string, n_ptr->addr); - tipc_printf(TIPC_OUTPUT, "Multicast link info for %s\n", addr_string); - tipc_printf(TIPC_OUTPUT, "Supported: %d, ", n_ptr->bclink.supported); - tipc_printf(TIPC_OUTPUT, "Acked: %u\n", n_ptr->bclink.acked); - tipc_printf(TIPC_OUTPUT, "Last in: %u, ", n_ptr->bclink.last_in); - tipc_printf(TIPC_OUTPUT, "Gap after: %u, ", n_ptr->bclink.gap_after); - tipc_printf(TIPC_OUTPUT, "Gap to: %u\n", n_ptr->bclink.gap_to); - tipc_printf(TIPC_OUTPUT, "Nack sync: %u\n\n", n_ptr->bclink.nack_sync); + info("Multicast link info for %s\n", addr_string); + info("Supported: %d, ", n_ptr->bclink.supported); + info("Acked: %u\n", n_ptr->bclink.acked); + info("Last in: %u, ", n_ptr->bclink.last_in); + info("Gap after: %u, ", n_ptr->bclink.gap_after); + info("Gap to: %u\n", n_ptr->bclink.gap_to); + info("Nack sync: %u\n\n", n_ptr->bclink.nack_sync); tipc_k_signal((Handler)link_reset_all, (unsigned long)n_ptr->addr); @@ -1682,12 +1471,8 @@ void tipc_link_retransmit(struct link *l_ptr, struct sk_buff *buf, msg = buf_msg(buf); - dbg("Retransmitting %u in link %x\n", retransmits, l_ptr); - if (tipc_bearer_congested(l_ptr->b_ptr, l_ptr)) { if (l_ptr->retransm_queue_size == 0) { - msg_dbg(msg, ">NO_RETR->BCONG>"); - dbg_print_link(l_ptr, " "); l_ptr->retransm_queue_head = msg_seqno(msg); l_ptr->retransm_queue_size = retransmits; } else { @@ -1714,7 +1499,6 @@ void tipc_link_retransmit(struct link *l_ptr, struct sk_buff *buf, msg_set_ack(msg, mod(l_ptr->next_in_no - 1)); msg_set_bcast_ack(msg, l_ptr->owner->bclink.last_in); if (tipc_bearer_send(l_ptr->b_ptr, buf, &l_ptr->media_addr)) { - msg_dbg(buf_msg(buf), ">RETR>"); buf = buf->next; retransmits--; l_ptr->stats.retransmitted++; @@ -1802,6 +1586,15 @@ static int link_recv_buf_validate(struct sk_buff *buf) return pskb_may_pull(buf, hdr_size); } +/** + * tipc_recv_msg - process TIPC messages arriving from off-node + * @head: pointer to message buffer chain + * @tb_ptr: pointer to bearer message arrived on + * + * Invoked with no locks held. Bearer pointer must point to a valid bearer + * structure (i.e. cannot be NULL), but bearer can be inactive. + */ + void tipc_recv_msg(struct sk_buff *head, struct tipc_bearer *tb_ptr) { read_lock_bh(&tipc_net_lock); @@ -1819,6 +1612,11 @@ void tipc_recv_msg(struct sk_buff *head, struct tipc_bearer *tb_ptr) head = head->next; + /* Ensure bearer is still enabled */ + + if (unlikely(!b_ptr->active)) + goto cont; + /* Ensure message is well-formed */ if (unlikely(!link_recv_buf_validate(buf))) @@ -1826,9 +1624,8 @@ void tipc_recv_msg(struct sk_buff *head, struct tipc_bearer *tb_ptr) /* Ensure message data is a single contiguous unit */ - if (unlikely(buf_linearize(buf))) { + if (unlikely(buf_linearize(buf))) goto cont; - } /* Handle arrival of a non-unicast link message */ @@ -1855,13 +1652,22 @@ void tipc_recv_msg(struct sk_buff *head, struct tipc_bearer *tb_ptr) goto cont; } - /* Locate unicast link endpoint that should handle message */ + /* Locate neighboring node that sent message */ n_ptr = tipc_node_find(msg_prevnode(msg)); if (unlikely(!n_ptr)) goto cont; tipc_node_lock(n_ptr); + /* Don't talk to neighbor during cleanup after last session */ + + if (n_ptr->cleanup_required) { + tipc_node_unlock(n_ptr); + goto cont; + } + + /* Locate unicast link endpoint that should handle message */ + l_ptr = n_ptr->links[b_ptr->identity]; if (unlikely(!l_ptr)) { tipc_node_unlock(n_ptr); @@ -1931,7 +1737,7 @@ deliver: continue; case ROUTE_DISTRIBUTOR: tipc_node_unlock(n_ptr); - tipc_cltr_recv_routing_table(buf); + buf_discard(buf); continue; case NAME_DISTRIBUTOR: tipc_node_unlock(n_ptr); @@ -1977,12 +1783,10 @@ deliver: tipc_node_unlock(n_ptr); continue; } - msg_dbg(msg,"NSEQ<REC<"); link_state_event(l_ptr, TRAFFIC_MSG_EVT); if (link_working_working(l_ptr)) { /* Re-insert in front of queue */ - msg_dbg(msg,"RECV-REINS:"); buf->next = head; head = buf; tipc_node_unlock(n_ptr); @@ -2036,13 +1840,11 @@ u32 tipc_link_defer_pkt(struct sk_buff **head, *head = buf; return 1; } - if (seq_no == msg_seqno(msg)) { + if (seq_no == msg_seqno(msg)) break; - } prev = crs; crs = crs->next; - } - while (crs); + } while (crs); /* Message is a duplicate of an existing message */ @@ -2064,9 +1866,6 @@ static void link_handle_out_of_seq_msg(struct link *l_ptr, return; } - dbg("rx OOS msg: seq_no %u, expecting %u (%u)\n", - seq_no, mod(l_ptr->next_in_no), l_ptr->next_in_no); - /* Record OOS packet arrival (force mismatch on next timeout) */ l_ptr->checkpoint--; @@ -2156,11 +1955,10 @@ void tipc_link_send_proto_msg(struct link *l_ptr, u32 msg_typ, int probe_msg, msg_set_max_pkt(msg, l_ptr->max_pkt_target); } - if (tipc_node_has_redundant_links(l_ptr->owner)) { + if (tipc_node_has_redundant_links(l_ptr->owner)) msg_set_redundant_link(msg); - } else { + else msg_clear_redundant_link(msg); - } msg_set_linkprio(msg, l_ptr->priority); /* Ensure sequence number will not fit : */ @@ -2172,7 +1970,7 @@ void tipc_link_send_proto_msg(struct link *l_ptr, u32 msg_typ, int probe_msg, if (tipc_bearer_congested(l_ptr->b_ptr, l_ptr)) { if (!l_ptr->proto_msg_queue) { l_ptr->proto_msg_queue = - buf_acquire(sizeof(l_ptr->proto_msg)); + tipc_buf_acquire(sizeof(l_ptr->proto_msg)); } buf = l_ptr->proto_msg_queue; if (!buf) @@ -2184,9 +1982,7 @@ void tipc_link_send_proto_msg(struct link *l_ptr, u32 msg_typ, int probe_msg, /* Message can be sent */ - msg_dbg(msg, ">>"); - - buf = buf_acquire(msg_size); + buf = tipc_buf_acquire(msg_size); if (!buf) return; @@ -2219,8 +2015,6 @@ static void link_recv_proto_msg(struct link *l_ptr, struct sk_buff *buf) u32 msg_tol; struct tipc_msg *msg = buf_msg(buf); - dbg("AT(%u):", jiffies_to_msecs(jiffies)); - msg_dbg(msg, "<<"); if (link_blocked(l_ptr)) goto exit; @@ -2239,11 +2033,8 @@ static void link_recv_proto_msg(struct link *l_ptr, struct sk_buff *buf) case RESET_MSG: if (!link_working_unknown(l_ptr) && (l_ptr->peer_session != INVALID_SESSION)) { - if (msg_session(msg) == l_ptr->peer_session) { - dbg("Duplicate RESET: %u<->%u\n", - msg_session(msg), l_ptr->peer_session); + if (msg_session(msg) == l_ptr->peer_session) break; /* duplicate: ignore */ - } } /* fall thru' */ case ACTIVATE_MSG: @@ -2251,8 +2042,8 @@ static void link_recv_proto_msg(struct link *l_ptr, struct sk_buff *buf) strcpy((strrchr(l_ptr->name, ':') + 1), (char *)msg_data(msg)); - if ((msg_tol = msg_link_tolerance(msg)) && - (msg_tol > l_ptr->tolerance)) + msg_tol = msg_link_tolerance(msg); + if (msg_tol > l_ptr->tolerance) link_set_supervision_props(l_ptr, msg_tol); if (msg_linkprio(msg) > l_ptr->priority) @@ -2275,13 +2066,13 @@ static void link_recv_proto_msg(struct link *l_ptr, struct sk_buff *buf) l_ptr->peer_bearer_id = msg_bearer_id(msg); /* Synchronize broadcast sequence numbers */ - if (!tipc_node_has_redundant_links(l_ptr->owner)) { + if (!tipc_node_has_redundant_links(l_ptr->owner)) l_ptr->owner->bclink.last_in = mod(msg_last_bcast(msg)); - } break; case STATE_MSG: - if ((msg_tol = msg_link_tolerance(msg))) + msg_tol = msg_link_tolerance(msg); + if (msg_tol) link_set_supervision_props(l_ptr, msg_tol); if (msg_linkprio(msg) && @@ -2304,8 +2095,6 @@ static void link_recv_proto_msg(struct link *l_ptr, struct sk_buff *buf) max_pkt_ack = msg_max_pkt(msg); if (max_pkt_ack > l_ptr->max_pkt) { - dbg("Link <%s> updated MTU %u -> %u\n", - l_ptr->name, l_ptr->max_pkt, max_pkt_ack); l_ptr->max_pkt = max_pkt_ack; l_ptr->max_pkt_probes = 0; } @@ -2313,9 +2102,8 @@ static void link_recv_proto_msg(struct link *l_ptr, struct sk_buff *buf) max_pkt_ack = 0; if (msg_probe(msg)) { l_ptr->stats.recv_probes++; - if (msg_size(msg) > sizeof(l_ptr->proto_msg)) { + if (msg_size(msg) > sizeof(l_ptr->proto_msg)) max_pkt_ack = msg_size(msg); - } } /* Protocol message before retransmits, reduce loss risk */ @@ -2327,14 +2115,11 @@ static void link_recv_proto_msg(struct link *l_ptr, struct sk_buff *buf) 0, rec_gap, 0, 0, max_pkt_ack); } if (msg_seq_gap(msg)) { - msg_dbg(msg, "With Gap:"); l_ptr->stats.recv_nacks++; tipc_link_retransmit(l_ptr, l_ptr->first_out, msg_seq_gap(msg)); } break; - default: - msg_dbg(buf_msg(buf), "<DISCARDING UNKNOWN<"); } exit: buf_discard(buf); @@ -2345,10 +2130,10 @@ exit: * tipc_link_tunnel(): Send one message via a link belonging to * another bearer. Owner node is locked. */ -void tipc_link_tunnel(struct link *l_ptr, - struct tipc_msg *tunnel_hdr, - struct tipc_msg *msg, - u32 selector) +static void tipc_link_tunnel(struct link *l_ptr, + struct tipc_msg *tunnel_hdr, + struct tipc_msg *msg, + u32 selector) { struct link *tunnel; struct sk_buff *buf; @@ -2361,7 +2146,7 @@ void tipc_link_tunnel(struct link *l_ptr, return; } msg_set_size(tunnel_hdr, length + INT_H_SIZE); - buf = buf_acquire(length + INT_H_SIZE); + buf = tipc_buf_acquire(length + INT_H_SIZE); if (!buf) { warn("Link changeover error, " "unable to send tunnel msg\n"); @@ -2369,8 +2154,6 @@ void tipc_link_tunnel(struct link *l_ptr, } skb_copy_to_linear_data(buf, tunnel_hdr, INT_H_SIZE); skb_copy_to_linear_data_offset(buf, INT_H_SIZE, msg, length); - dbg("%c->%c:", l_ptr->b_ptr->net_plane, tunnel->b_ptr->net_plane); - msg_dbg(buf_msg(buf), ">SEND>"); tipc_link_send_buf(tunnel, buf); } @@ -2402,18 +2185,14 @@ void tipc_link_changeover(struct link *l_ptr) ORIGINAL_MSG, INT_H_SIZE, l_ptr->addr); msg_set_bearer_id(&tunnel_hdr, l_ptr->peer_bearer_id); msg_set_msgcnt(&tunnel_hdr, msgcount); - dbg("Link changeover requires %u tunnel messages\n", msgcount); if (!l_ptr->first_out) { struct sk_buff *buf; - buf = buf_acquire(INT_H_SIZE); + buf = tipc_buf_acquire(INT_H_SIZE); if (buf) { skb_copy_to_linear_data(buf, &tunnel_hdr, INT_H_SIZE); msg_set_size(&tunnel_hdr, INT_H_SIZE); - dbg("%c->%c:", l_ptr->b_ptr->net_plane, - tunnel->b_ptr->net_plane); - msg_dbg(&tunnel_hdr, "EMPTY>SEND>"); tipc_link_send_buf(tunnel, buf); } else { warn("Link changeover error, " @@ -2430,11 +2209,11 @@ void tipc_link_changeover(struct link *l_ptr) if ((msg_user(msg) == MSG_BUNDLER) && split_bundles) { struct tipc_msg *m = msg_get_wrapped(msg); - unchar* pos = (unchar*)m; + unchar *pos = (unchar *)m; msgcount = msg_msgcnt(msg); while (msgcount--) { - msg_set_seqno(m,msg_seqno(msg)); + msg_set_seqno(m, msg_seqno(msg)); tipc_link_tunnel(l_ptr, &tunnel_hdr, m, msg_link_selector(m)); pos += align(msg_size(m)); @@ -2468,7 +2247,7 @@ void tipc_link_send_duplicate(struct link *l_ptr, struct link *tunnel) msg_set_ack(msg, mod(l_ptr->next_in_no - 1)); /* Update */ msg_set_bcast_ack(msg, l_ptr->owner->bclink.last_in); msg_set_size(&tunnel_hdr, length + INT_H_SIZE); - outbuf = buf_acquire(length + INT_H_SIZE); + outbuf = tipc_buf_acquire(length + INT_H_SIZE); if (outbuf == NULL) { warn("Link changeover error, " "unable to send duplicate msg\n"); @@ -2477,9 +2256,6 @@ void tipc_link_send_duplicate(struct link *l_ptr, struct link *tunnel) skb_copy_to_linear_data(outbuf, &tunnel_hdr, INT_H_SIZE); skb_copy_to_linear_data_offset(outbuf, INT_H_SIZE, iter->data, length); - dbg("%c->%c:", l_ptr->b_ptr->net_plane, - tunnel->b_ptr->net_plane); - msg_dbg(buf_msg(outbuf), ">SEND>"); tipc_link_send_buf(tunnel, outbuf); if (!tipc_link_is_up(l_ptr)) return; @@ -2504,7 +2280,7 @@ static struct sk_buff *buf_extract(struct sk_buff *skb, u32 from_pos) u32 size = msg_size(msg); struct sk_buff *eb; - eb = buf_acquire(size); + eb = tipc_buf_acquire(size); if (eb) skb_copy_to_linear_data(eb, msg, size); return eb; @@ -2526,31 +2302,24 @@ static int link_recv_changeover_msg(struct link **l_ptr, u32 msg_count = msg_msgcnt(tunnel_msg); dest_link = (*l_ptr)->owner->links[msg_bearer_id(tunnel_msg)]; - if (!dest_link) { - msg_dbg(tunnel_msg, "NOLINK/<REC<"); + if (!dest_link) goto exit; - } if (dest_link == *l_ptr) { err("Unexpected changeover message on link <%s>\n", (*l_ptr)->name); goto exit; } - dbg("%c<-%c:", dest_link->b_ptr->net_plane, - (*l_ptr)->b_ptr->net_plane); *l_ptr = dest_link; msg = msg_get_wrapped(tunnel_msg); if (msg_typ == DUPLICATE_MSG) { - if (less(msg_seqno(msg), mod(dest_link->next_in_no))) { - msg_dbg(tunnel_msg, "DROP/<REC<"); + if (less(msg_seqno(msg), mod(dest_link->next_in_no))) goto exit; - } - *buf = buf_extract(tunnel_buf,INT_H_SIZE); + *buf = buf_extract(tunnel_buf, INT_H_SIZE); if (*buf == NULL) { warn("Link changeover error, duplicate msg dropped\n"); goto exit; } - msg_dbg(tunnel_msg, "TNL<REC<"); buf_discard(tunnel_buf); return 1; } @@ -2558,18 +2327,14 @@ static int link_recv_changeover_msg(struct link **l_ptr, /* First original message ?: */ if (tipc_link_is_up(dest_link)) { - msg_dbg(tunnel_msg, "UP/FIRST/<REC<"); info("Resetting link <%s>, changeover initiated by peer\n", dest_link->name); tipc_link_reset(dest_link); dest_link->exp_msg_count = msg_count; - dbg("Expecting %u tunnelled messages\n", msg_count); if (!msg_count) goto exit; } else if (dest_link->exp_msg_count == START_CHANGEOVER) { - msg_dbg(tunnel_msg, "BLK/FIRST/<REC<"); dest_link->exp_msg_count = msg_count; - dbg("Expecting %u tunnelled messages\n", msg_count); if (!msg_count) goto exit; } @@ -2579,18 +2344,14 @@ static int link_recv_changeover_msg(struct link **l_ptr, if (dest_link->exp_msg_count == 0) { warn("Link switchover error, " "got too many tunnelled messages\n"); - msg_dbg(tunnel_msg, "OVERDUE/DROP/<REC<"); - dbg_print_link(dest_link, "LINK:"); goto exit; } dest_link->exp_msg_count--; if (less(msg_seqno(msg), dest_link->reset_checkpoint)) { - msg_dbg(tunnel_msg, "DROP/DUPL/<REC<"); goto exit; } else { *buf = buf_extract(tunnel_buf, INT_H_SIZE); if (*buf != NULL) { - msg_dbg(tunnel_msg, "TNL<REC<"); buf_discard(tunnel_buf); return 1; } else { @@ -2612,7 +2373,6 @@ void tipc_link_recv_bundle(struct sk_buff *buf) u32 pos = INT_H_SIZE; struct sk_buff *obuf; - msg_dbg(buf_msg(buf), "<BNDL<: "); while (msgcount--) { obuf = buf_extract(buf, pos); if (obuf == NULL) { @@ -2620,7 +2380,6 @@ void tipc_link_recv_bundle(struct sk_buff *buf) break; } pos += align(msg_size(buf_msg(obuf))); - msg_dbg(buf_msg(obuf), " /"); tipc_net_route_msg(obuf); } buf_discard(buf); @@ -2632,11 +2391,11 @@ void tipc_link_recv_bundle(struct sk_buff *buf) /* - * tipc_link_send_long_buf: Entry for buffers needing fragmentation. + * link_send_long_buf: Entry for buffers needing fragmentation. * The buffer is complete, inclusive total message length. * Returns user data length. */ -int tipc_link_send_long_buf(struct link *l_ptr, struct sk_buff *buf) +static int link_send_long_buf(struct link *l_ptr, struct sk_buff *buf) { struct tipc_msg *inmsg = buf_msg(buf); struct tipc_msg fragm_hdr; @@ -2675,7 +2434,7 @@ int tipc_link_send_long_buf(struct link *l_ptr, struct sk_buff *buf) fragm_sz = rest; msg_set_type(&fragm_hdr, LAST_FRAGMENT); } - fragm = buf_acquire(fragm_sz + INT_H_SIZE); + fragm = tipc_buf_acquire(fragm_sz + INT_H_SIZE); if (fragm == NULL) { warn("Link unable to fragment message\n"); dsz = -ENOMEM; @@ -2757,7 +2516,6 @@ int tipc_link_recv_fragment(struct sk_buff **pending, struct sk_buff **fb, u32 long_msg_seq_no = msg_long_msgno(fragm); *fb = NULL; - msg_dbg(fragm,"FRG<REC<"); /* Is there an incomplete message waiting for this fragment? */ @@ -2776,11 +2534,10 @@ int tipc_link_recv_fragment(struct sk_buff **pending, struct sk_buff **fb, if (msg_type(imsg) == TIPC_MCAST_MSG) max = TIPC_MAX_USER_MSG_SIZE + MCAST_H_SIZE; if (msg_size(imsg) > max) { - msg_dbg(fragm,"<REC<Oversized: "); buf_discard(fbuf); return 0; } - pbuf = buf_acquire(msg_size(imsg)); + pbuf = tipc_buf_acquire(msg_size(imsg)); if (pbuf != NULL) { pbuf->next = *pending; *pending = pbuf; @@ -2789,8 +2546,8 @@ int tipc_link_recv_fragment(struct sk_buff **pending, struct sk_buff **fb, /* Prepare buffer for subsequent fragments. */ set_long_msg_seqno(pbuf, long_msg_seq_no); - set_fragm_size(pbuf,fragm_sz); - set_expected_frags(pbuf,exp_fragm_cnt - 1); + set_fragm_size(pbuf, fragm_sz); + set_expected_frags(pbuf, exp_fragm_cnt - 1); } else { warn("Link unable to reassemble fragmented message\n"); } @@ -2817,13 +2574,9 @@ int tipc_link_recv_fragment(struct sk_buff **pending, struct sk_buff **fb, *m = buf_msg(pbuf); return 1; } - set_expected_frags(pbuf,exp_frags); + set_expected_frags(pbuf, exp_frags); return 0; } - dbg(" Discarding orphan fragment %x\n",fbuf); - msg_dbg(fragm,"ORPHAN:"); - dbg("Pending long buffers:\n"); - dbg_print_buf_chain(*pending); buf_discard(fbuf); return 0; } @@ -2851,11 +2604,6 @@ static void link_check_defragm_bufs(struct link *l_ptr) incr_timer_cnt(buf); prev = buf; } else { - dbg(" Discarding incomplete long buffer\n"); - msg_dbg(buf_msg(buf), "LONG:"); - dbg_print_link(l_ptr, "curr:"); - dbg("Pending long buffers:\n"); - dbg_print_buf_chain(l_ptr->defragm_buf); if (prev) prev->next = buf->next; else @@ -2890,7 +2638,6 @@ void tipc_link_set_queue_limits(struct link *l_ptr, u32 window) l_ptr->queue_limit[TIPC_HIGH_IMPORTANCE + 4] = 900; l_ptr->queue_limit[TIPC_CRITICAL_IMPORTANCE + 4] = 1200; l_ptr->queue_limit[CONN_MANAGER] = 1200; - l_ptr->queue_limit[ROUTE_DISTRIBUTOR] = 1200; l_ptr->queue_limit[CHANGEOVER_PROTOCOL] = 2500; l_ptr->queue_limit[NAME_DISTRIBUTOR] = 3000; /* FRAGMENT and LAST_FRAGMENT packets */ @@ -3174,44 +2921,6 @@ struct sk_buff *tipc_link_cmd_show_stats(const void *req_tlv_area, int req_tlv_s return buf; } -#if 0 -int link_control(const char *name, u32 op, u32 val) -{ - int res = -EINVAL; - struct link *l_ptr; - u32 bearer_id; - struct tipc_node * node; - u32 a; - - a = link_name2addr(name, &bearer_id); - read_lock_bh(&tipc_net_lock); - node = tipc_node_find(a); - if (node) { - tipc_node_lock(node); - l_ptr = node->links[bearer_id]; - if (l_ptr) { - if (op == TIPC_REMOVE_LINK) { - struct bearer *b_ptr = l_ptr->b_ptr; - spin_lock_bh(&b_ptr->publ.lock); - tipc_link_delete(l_ptr); - spin_unlock_bh(&b_ptr->publ.lock); - } - if (op == TIPC_CMD_BLOCK_LINK) { - tipc_link_reset(l_ptr); - l_ptr->blocked = 1; - } - if (op == TIPC_CMD_UNBLOCK_LINK) { - l_ptr->blocked = 0; - } - res = 0; - } - tipc_node_unlock(node); - } - read_unlock_bh(&tipc_net_lock); - return res; -} -#endif - /** * tipc_link_get_max_pkt - get maximum packet size to use when sending to destination * @dest: network address of destination node @@ -3230,7 +2939,7 @@ u32 tipc_link_get_max_pkt(u32 dest, u32 selector) return MAX_MSG_SIZE; read_lock_bh(&tipc_net_lock); - n_ptr = tipc_node_select(dest, selector); + n_ptr = tipc_node_find(dest); if (n_ptr) { tipc_node_lock(n_ptr); l_ptr = n_ptr->active_links[selector & 1]; @@ -3242,49 +2951,22 @@ u32 tipc_link_get_max_pkt(u32 dest, u32 selector) return res; } -#if 0 -static void link_dump_rec_queue(struct link *l_ptr) +static void link_print(struct link *l_ptr, const char *str) { - struct sk_buff *crs; - - if (!l_ptr->oldest_deferred_in) { - info("Reception queue empty\n"); - return; - } - info("Contents of Reception queue:\n"); - crs = l_ptr->oldest_deferred_in; - while (crs) { - if (crs->data == (void *)0x0000a3a3) { - info("buffer %x invalid\n", crs); - return; - } - msg_dbg(buf_msg(crs), "In rec queue:\n"); - crs = crs->next; - } -} -#endif + char print_area[256]; + struct print_buf pb; + struct print_buf *buf = &pb; -static void link_dump_send_queue(struct link *l_ptr) -{ - if (l_ptr->next_out) { - info("\nContents of unsent queue:\n"); - dbg_print_buf_chain(l_ptr->next_out); - } - info("\nContents of send queue:\n"); - if (l_ptr->first_out) { - dbg_print_buf_chain(l_ptr->first_out); - } - info("Empty send queue\n"); -} + tipc_printbuf_init(buf, print_area, sizeof(print_area)); -static void link_print(struct link *l_ptr, struct print_buf *buf, - const char *str) -{ tipc_printf(buf, str); - if (link_reset_reset(l_ptr) || link_reset_unknown(l_ptr)) - return; tipc_printf(buf, "Link %x<%s>:", l_ptr->addr, l_ptr->b_ptr->publ.name); + +#ifdef CONFIG_TIPC_DEBUG + if (link_reset_reset(l_ptr) || link_reset_unknown(l_ptr)) + goto print_state; + tipc_printf(buf, ": NXO(%u):", mod(l_ptr->next_out_no)); tipc_printf(buf, "NXI(%u):", mod(l_ptr->next_in_no)); tipc_printf(buf, "SQUE"); @@ -3302,7 +2984,6 @@ static void link_print(struct link *l_ptr, struct print_buf *buf, tipc_printf(buf, "first_out= %x ", l_ptr->first_out); tipc_printf(buf, "next_out= %x ", l_ptr->next_out); tipc_printf(buf, "last_out= %x ", l_ptr->last_out); - link_dump_send_queue(l_ptr); } } else tipc_printf(buf, "[]"); @@ -3316,14 +2997,20 @@ static void link_print(struct link *l_ptr, struct print_buf *buf, l_ptr->deferred_inqueue_sz); } } +print_state: +#endif + if (link_working_unknown(l_ptr)) tipc_printf(buf, ":WU"); - if (link_reset_reset(l_ptr)) + else if (link_reset_reset(l_ptr)) tipc_printf(buf, ":RR"); - if (link_reset_unknown(l_ptr)) + else if (link_reset_unknown(l_ptr)) tipc_printf(buf, ":RU"); - if (link_working_working(l_ptr)) + else if (link_working_working(l_ptr)) tipc_printf(buf, ":WW"); tipc_printf(buf, "\n"); + + tipc_printbuf_validate(buf); + info("%s", print_area); } diff --git a/net/tipc/link.h b/net/tipc/link.h index 2e5385c47d30..70967e637027 100644 --- a/net/tipc/link.h +++ b/net/tipc/link.h @@ -37,9 +37,8 @@ #ifndef _TIPC_LINK_H #define _TIPC_LINK_H -#include "dbg.h" +#include "log.h" #include "msg.h" -#include "bearer.h" #include "node.h" #define PUSH_FAILED 1 @@ -108,7 +107,6 @@ * @long_msg_seq_no: next identifier to use for outbound fragmented messages * @defragm_buf: list of partially reassembled inbound message fragments * @stats: collects statistics regarding link activity - * @print_buf: print buffer used to log link activity */ struct link { @@ -210,13 +208,7 @@ struct link { u32 msg_length_counts; u32 msg_lengths_total; u32 msg_length_profile[7]; -#if 0 - u32 sent_tunneled; - u32 recv_tunneled; -#endif } stats; - - struct print_buf print_buf; }; struct port; @@ -229,7 +221,6 @@ void tipc_link_send_duplicate(struct link *l_ptr, struct link *dest); void tipc_link_reset_fragments(struct link *l_ptr); int tipc_link_is_up(struct link *l_ptr); int tipc_link_is_active(struct link *l_ptr); -void tipc_link_start(struct link *l_ptr); u32 tipc_link_push_packet(struct link *l_ptr); void tipc_link_stop(struct link *l_ptr); struct sk_buff *tipc_link_cmd_config(const void *req_tlv_area, int req_tlv_space, u16 cmd); @@ -238,14 +229,11 @@ struct sk_buff *tipc_link_cmd_reset_stats(const void *req_tlv_area, int req_tlv_ void tipc_link_reset(struct link *l_ptr); int tipc_link_send(struct sk_buff *buf, u32 dest, u32 selector); int tipc_link_send_buf(struct link *l_ptr, struct sk_buff *buf); -u32 tipc_link_get_max_pkt(u32 dest,u32 selector); -int tipc_link_send_sections_fast(struct port* sender, +u32 tipc_link_get_max_pkt(u32 dest, u32 selector); +int tipc_link_send_sections_fast(struct port *sender, struct iovec const *msg_sect, const u32 num_sect, u32 destnode); -int tipc_link_send_long_buf(struct link *l_ptr, struct sk_buff *buf); -void tipc_link_tunnel(struct link *l_ptr, struct tipc_msg *tnl_hdr, - struct tipc_msg *msg, u32 selector); void tipc_link_recv_bundle(struct sk_buff *buf); int tipc_link_recv_fragment(struct sk_buff **pending, struct sk_buff **fb, @@ -279,12 +267,12 @@ static inline int between(u32 lower, u32 upper, u32 n) static inline int less_eq(u32 left, u32 right) { - return (mod(right - left) < 32768u); + return mod(right - left) < 32768u; } static inline int less(u32 left, u32 right) { - return (less_eq(left, right) && (mod(right) != mod(left))); + return less_eq(left, right) && (mod(right) != mod(left)); } static inline u32 lesser(u32 left, u32 right) @@ -299,32 +287,32 @@ static inline u32 lesser(u32 left, u32 right) static inline int link_working_working(struct link *l_ptr) { - return (l_ptr->state == WORKING_WORKING); + return l_ptr->state == WORKING_WORKING; } static inline int link_working_unknown(struct link *l_ptr) { - return (l_ptr->state == WORKING_UNKNOWN); + return l_ptr->state == WORKING_UNKNOWN; } static inline int link_reset_unknown(struct link *l_ptr) { - return (l_ptr->state == RESET_UNKNOWN); + return l_ptr->state == RESET_UNKNOWN; } static inline int link_reset_reset(struct link *l_ptr) { - return (l_ptr->state == RESET_RESET); + return l_ptr->state == RESET_RESET; } static inline int link_blocked(struct link *l_ptr) { - return (l_ptr->exp_msg_count || l_ptr->blocked); + return l_ptr->exp_msg_count || l_ptr->blocked; } static inline int link_congested(struct link *l_ptr) { - return (l_ptr->out_queue_size >= l_ptr->queue_limit[0]); + return l_ptr->out_queue_size >= l_ptr->queue_limit[0]; } #endif diff --git a/net/tipc/dbg.c b/net/tipc/log.c index 1885a7edb0c8..952c39f643e6 100644 --- a/net/tipc/dbg.c +++ b/net/tipc/log.c @@ -1,5 +1,5 @@ /* - * net/tipc/dbg.c: TIPC print buffer routines for debugging + * net/tipc/log.c: TIPC print buffer routines for debugging * * Copyright (c) 1996-2006, Ericsson AB * Copyright (c) 2005-2007, Wind River Systems @@ -36,7 +36,7 @@ #include "core.h" #include "config.h" -#include "dbg.h" +#include "log.h" /* * TIPC pre-defines the following print buffers: @@ -64,9 +64,9 @@ struct print_buf *const TIPC_LOG = &log_buf; * 'print_string' when writing to a print buffer. This also protects against * concurrent writes to the print buffer being written to. * - * 2) tipc_dump() and tipc_log_XXX() leverage the aforementioned - * use of 'print_lock' to protect against all types of concurrent operations - * on their associated print buffer (not just write operations). + * 2) tipc_log_XXX() leverages the aforementioned use of 'print_lock' to + * protect against all types of concurrent operations on their associated + * print buffer (not just write operations). * * Note: All routines of the form tipc_printbuf_XXX() are lock-free, and rely * on the caller to prevent simultaneous use of the print buffer(s) being @@ -76,14 +76,16 @@ struct print_buf *const TIPC_LOG = &log_buf; static char print_string[TIPC_PB_MAX_STR]; static DEFINE_SPINLOCK(print_lock); +static void tipc_printbuf_move(struct print_buf *pb_to, + struct print_buf *pb_from); -#define FORMAT(PTR,LEN,FMT) \ +#define FORMAT(PTR, LEN, FMT) \ {\ - va_list args;\ - va_start(args, FMT);\ - LEN = vsprintf(PTR, FMT, args);\ - va_end(args);\ - *(PTR + LEN) = '\0';\ + va_list args;\ + va_start(args, FMT);\ + LEN = vsprintf(PTR, FMT, args);\ + va_end(args);\ + *(PTR + LEN) = '\0';\ } /** @@ -116,7 +118,7 @@ void tipc_printbuf_init(struct print_buf *pb, char *raw, u32 size) * @pb: pointer to print buffer structure */ -void tipc_printbuf_reset(struct print_buf *pb) +static void tipc_printbuf_reset(struct print_buf *pb) { if (pb->buf) { pb->crs = pb->buf; @@ -132,9 +134,9 @@ void tipc_printbuf_reset(struct print_buf *pb) * Returns non-zero if print buffer is empty. */ -int tipc_printbuf_empty(struct print_buf *pb) +static int tipc_printbuf_empty(struct print_buf *pb) { - return (!pb->buf || (pb->crs == pb->buf)); + return !pb->buf || (pb->crs == pb->buf); } /** @@ -169,7 +171,7 @@ int tipc_printbuf_validate(struct print_buf *pb) tipc_printf(pb, err); } } - return (pb->crs - pb->buf + 1); + return pb->crs - pb->buf + 1; } /** @@ -181,7 +183,8 @@ int tipc_printbuf_validate(struct print_buf *pb) * Source print buffer becomes empty if a successful move occurs. */ -void tipc_printbuf_move(struct print_buf *pb_to, struct print_buf *pb_from) +static void tipc_printbuf_move(struct print_buf *pb_to, + struct print_buf *pb_from) { int len; @@ -263,81 +266,6 @@ void tipc_printf(struct print_buf *pb, const char *fmt, ...) spin_unlock_bh(&print_lock); } -#ifdef CONFIG_TIPC_DEBUG - -/** - * print_to_console - write string of bytes to console in multiple chunks - */ - -static void print_to_console(char *crs, int len) -{ - int rest = len; - - while (rest > 0) { - int sz = rest < TIPC_PB_MAX_STR ? rest : TIPC_PB_MAX_STR; - char c = crs[sz]; - - crs[sz] = 0; - printk((const char *)crs); - crs[sz] = c; - rest -= sz; - crs += sz; - } -} - -/** - * printbuf_dump - write print buffer contents to console - */ - -static void printbuf_dump(struct print_buf *pb) -{ - int len; - - if (!pb->buf) { - printk("*** PRINT BUFFER NOT ALLOCATED ***"); - return; - } - - /* Dump print buffer from char after cursor to end (if used) */ - - len = pb->buf + pb->size - pb->crs - 2; - if ((pb->buf[pb->size - 1] == 0) && (len > 0)) - print_to_console(pb->crs + 1, len); - - /* Dump print buffer from start to cursor (always) */ - - len = pb->crs - pb->buf; - print_to_console(pb->buf, len); -} - -/** - * tipc_dump_dbg - dump (non-console) print buffer to console - * @pb: pointer to print buffer - */ - -void tipc_dump_dbg(struct print_buf *pb, const char *fmt, ...) -{ - int len; - - if (pb == TIPC_CONS) - return; - - spin_lock_bh(&print_lock); - - FORMAT(print_string, len, fmt); - printk(print_string); - - printk("\n---- Start of %s log dump ----\n\n", - (pb == TIPC_LOG) ? "global" : "local"); - printbuf_dump(pb); - tipc_printbuf_reset(pb); - printk("\n---- End of dump ----\n"); - - spin_unlock_bh(&print_lock); -} - -#endif - /** * tipc_log_resize - change the size of the TIPC log buffer * @log_size: print buffer size to use @@ -348,10 +276,8 @@ int tipc_log_resize(int log_size) int res = 0; spin_lock_bh(&print_lock); - if (TIPC_LOG->buf) { - kfree(TIPC_LOG->buf); - TIPC_LOG->buf = NULL; - } + kfree(TIPC_LOG->buf); + TIPC_LOG->buf = NULL; if (log_size) { if (log_size < TIPC_PB_MIN_SIZE) log_size = TIPC_PB_MIN_SIZE; @@ -402,8 +328,7 @@ struct sk_buff *tipc_log_dump(void) } else if (tipc_printbuf_empty(TIPC_LOG)) { spin_unlock_bh(&print_lock); reply = tipc_cfg_reply_ultra_string("log is empty\n"); - } - else { + } else { struct tlv_desc *rep_tlv; struct print_buf pb; int str_len; @@ -424,4 +349,3 @@ struct sk_buff *tipc_log_dump(void) } return reply; } - diff --git a/net/tipc/dbg.h b/net/tipc/log.h index 5ef1bc8f64ef..2248d96238e6 100644 --- a/net/tipc/dbg.h +++ b/net/tipc/log.h @@ -1,5 +1,5 @@ /* - * net/tipc/dbg.h: Include file for TIPC print buffer routines + * net/tipc/log.h: Include file for TIPC print buffer routines * * Copyright (c) 1997-2006, Ericsson AB * Copyright (c) 2005-2007, Wind River Systems @@ -34,8 +34,8 @@ * POSSIBILITY OF SUCH DAMAGE. */ -#ifndef _TIPC_DBG_H -#define _TIPC_DBG_H +#ifndef _TIPC_LOG_H +#define _TIPC_LOG_H /** * struct print_buf - TIPC print buffer structure @@ -56,10 +56,7 @@ struct print_buf { #define TIPC_PB_MAX_STR 512 /* max printable string (with trailing NUL) */ void tipc_printbuf_init(struct print_buf *pb, char *buf, u32 size); -void tipc_printbuf_reset(struct print_buf *pb); -int tipc_printbuf_empty(struct print_buf *pb); int tipc_printbuf_validate(struct print_buf *pb); -void tipc_printbuf_move(struct print_buf *pb_to, struct print_buf *pb_from); int tipc_log_resize(int log_size); diff --git a/net/tipc/msg.c b/net/tipc/msg.c index 381063817b41..bb6180c4fcbb 100644 --- a/net/tipc/msg.c +++ b/net/tipc/msg.c @@ -35,10 +35,7 @@ */ #include "core.h" -#include "addr.h" -#include "dbg.h" #include "msg.h" -#include "bearer.h" u32 tipc_msg_tot_importance(struct tipc_msg *m) { @@ -94,7 +91,7 @@ int tipc_msg_calc_data_size(struct iovec const *msg_sect, u32 num_sect) int tipc_msg_build(struct tipc_msg *hdr, struct iovec const *msg_sect, u32 num_sect, - int max_size, int usrmem, struct sk_buff** buf) + int max_size, int usrmem, struct sk_buff **buf) { int dsz, sz, hsz, pos, res, cnt; @@ -112,7 +109,7 @@ int tipc_msg_build(struct tipc_msg *hdr, return dsz; } - *buf = buf_acquire(sz); + *buf = tipc_buf_acquire(sz); if (!(*buf)) return -ENOMEM; skb_copy_to_linear_data(*buf, hdr, hsz); @@ -140,6 +137,7 @@ int tipc_msg_build(struct tipc_msg *hdr, void tipc_msg_dbg(struct print_buf *buf, struct tipc_msg *msg, const char *str) { u32 usr = msg_user(msg); + tipc_printf(buf, KERN_DEBUG); tipc_printf(buf, str); switch (usr) { @@ -163,10 +161,10 @@ void tipc_msg_dbg(struct print_buf *buf, struct tipc_msg *msg, const char *str) tipc_printf(buf, "LAST:"); break; default: - tipc_printf(buf, "UNKNOWN:%x",msg_type(msg)); + tipc_printf(buf, "UNKNOWN:%x", msg_type(msg)); } - tipc_printf(buf, "NO(%u/%u):",msg_long_msgno(msg), + tipc_printf(buf, "NO(%u/%u):", msg_long_msgno(msg), msg_fragm_no(msg)); break; case TIPC_LOW_IMPORTANCE: @@ -192,7 +190,7 @@ void tipc_msg_dbg(struct print_buf *buf, struct tipc_msg *msg, const char *str) tipc_printf(buf, "DIR:"); break; default: - tipc_printf(buf, "UNKNOWN TYPE %u",msg_type(msg)); + tipc_printf(buf, "UNKNOWN TYPE %u", msg_type(msg)); } if (msg_routed(msg) && !msg_non_seq(msg)) tipc_printf(buf, "ROUT:"); @@ -210,7 +208,7 @@ void tipc_msg_dbg(struct print_buf *buf, struct tipc_msg *msg, const char *str) tipc_printf(buf, "WDRW:"); break; default: - tipc_printf(buf, "UNKNOWN:%x",msg_type(msg)); + tipc_printf(buf, "UNKNOWN:%x", msg_type(msg)); } if (msg_routed(msg)) tipc_printf(buf, "ROUT:"); @@ -229,39 +227,39 @@ void tipc_msg_dbg(struct print_buf *buf, struct tipc_msg *msg, const char *str) break; case CONN_ACK: tipc_printf(buf, "CONN_ACK:"); - tipc_printf(buf, "ACK(%u):",msg_msgcnt(msg)); + tipc_printf(buf, "ACK(%u):", msg_msgcnt(msg)); break; default: - tipc_printf(buf, "UNKNOWN TYPE:%x",msg_type(msg)); + tipc_printf(buf, "UNKNOWN TYPE:%x", msg_type(msg)); } if (msg_routed(msg)) tipc_printf(buf, "ROUT:"); if (msg_reroute_cnt(msg)) - tipc_printf(buf, "REROUTED(%u):",msg_reroute_cnt(msg)); + tipc_printf(buf, "REROUTED(%u):", msg_reroute_cnt(msg)); break; case LINK_PROTOCOL: - tipc_printf(buf, "PROT:TIM(%u):",msg_timestamp(msg)); + tipc_printf(buf, "PROT:TIM(%u):", msg_timestamp(msg)); switch (msg_type(msg)) { case STATE_MSG: tipc_printf(buf, "STATE:"); - tipc_printf(buf, "%s:",msg_probe(msg) ? "PRB" :""); - tipc_printf(buf, "NXS(%u):",msg_next_sent(msg)); - tipc_printf(buf, "GAP(%u):",msg_seq_gap(msg)); - tipc_printf(buf, "LSTBC(%u):",msg_last_bcast(msg)); + tipc_printf(buf, "%s:", msg_probe(msg) ? "PRB" : ""); + tipc_printf(buf, "NXS(%u):", msg_next_sent(msg)); + tipc_printf(buf, "GAP(%u):", msg_seq_gap(msg)); + tipc_printf(buf, "LSTBC(%u):", msg_last_bcast(msg)); break; case RESET_MSG: tipc_printf(buf, "RESET:"); if (msg_size(msg) != msg_hdr_sz(msg)) - tipc_printf(buf, "BEAR:%s:",msg_data(msg)); + tipc_printf(buf, "BEAR:%s:", msg_data(msg)); break; case ACTIVATE_MSG: tipc_printf(buf, "ACTIVATE:"); break; default: - tipc_printf(buf, "UNKNOWN TYPE:%x",msg_type(msg)); + tipc_printf(buf, "UNKNOWN TYPE:%x", msg_type(msg)); } - tipc_printf(buf, "PLANE(%c):",msg_net_plane(msg)); - tipc_printf(buf, "SESS(%u):",msg_session(msg)); + tipc_printf(buf, "PLANE(%c):", msg_net_plane(msg)); + tipc_printf(buf, "SESS(%u):", msg_session(msg)); break; case CHANGEOVER_PROTOCOL: tipc_printf(buf, "TUNL:"); @@ -271,10 +269,10 @@ void tipc_msg_dbg(struct print_buf *buf, struct tipc_msg *msg, const char *str) break; case ORIGINAL_MSG: tipc_printf(buf, "ORIG:"); - tipc_printf(buf, "EXP(%u)",msg_msgcnt(msg)); + tipc_printf(buf, "EXP(%u)", msg_msgcnt(msg)); break; default: - tipc_printf(buf, "UNKNOWN TYPE:%x",msg_type(msg)); + tipc_printf(buf, "UNKNOWN TYPE:%x", msg_type(msg)); } break; case ROUTE_DISTRIBUTOR: @@ -282,26 +280,26 @@ void tipc_msg_dbg(struct print_buf *buf, struct tipc_msg *msg, const char *str) switch (msg_type(msg)) { case EXT_ROUTING_TABLE: tipc_printf(buf, "EXT_TBL:"); - tipc_printf(buf, "TO:%x:",msg_remote_node(msg)); + tipc_printf(buf, "TO:%x:", msg_remote_node(msg)); break; case LOCAL_ROUTING_TABLE: tipc_printf(buf, "LOCAL_TBL:"); - tipc_printf(buf, "TO:%x:",msg_remote_node(msg)); + tipc_printf(buf, "TO:%x:", msg_remote_node(msg)); break; case SLAVE_ROUTING_TABLE: tipc_printf(buf, "DP_TBL:"); - tipc_printf(buf, "TO:%x:",msg_remote_node(msg)); + tipc_printf(buf, "TO:%x:", msg_remote_node(msg)); break; case ROUTE_ADDITION: tipc_printf(buf, "ADD:"); - tipc_printf(buf, "TO:%x:",msg_remote_node(msg)); + tipc_printf(buf, "TO:%x:", msg_remote_node(msg)); break; case ROUTE_REMOVAL: tipc_printf(buf, "REMOVE:"); - tipc_printf(buf, "TO:%x:",msg_remote_node(msg)); + tipc_printf(buf, "TO:%x:", msg_remote_node(msg)); break; default: - tipc_printf(buf, "UNKNOWN TYPE:%x",msg_type(msg)); + tipc_printf(buf, "UNKNOWN TYPE:%x", msg_type(msg)); } break; case LINK_CONFIG: @@ -314,7 +312,7 @@ void tipc_msg_dbg(struct print_buf *buf, struct tipc_msg *msg, const char *str) tipc_printf(buf, "DSC_RESP:"); break; default: - tipc_printf(buf, "UNKNOWN TYPE:%x:",msg_type(msg)); + tipc_printf(buf, "UNKNOWN TYPE:%x:", msg_type(msg)); break; } break; @@ -350,7 +348,8 @@ void tipc_msg_dbg(struct print_buf *buf, struct tipc_msg *msg, const char *str) tipc_printf(buf, "UNKNOWN ERROR(%x):", msg_errcode(msg)); } - default:{} + default: + break; } tipc_printf(buf, "HZ(%u):", msg_hdr_sz(msg)); @@ -359,9 +358,8 @@ void tipc_msg_dbg(struct print_buf *buf, struct tipc_msg *msg, const char *str) if (msg_non_seq(msg)) tipc_printf(buf, "NOSEQ:"); - else { + else tipc_printf(buf, "ACK(%u):", msg_ack(msg)); - } tipc_printf(buf, "BACK(%u):", msg_bcast_ack(msg)); tipc_printf(buf, "PRND(%x)", msg_prevnode(msg)); @@ -389,14 +387,13 @@ void tipc_msg_dbg(struct print_buf *buf, struct tipc_msg *msg, const char *str) if (msg_user(msg) == NAME_DISTRIBUTOR) { tipc_printf(buf, ":ONOD(%x):", msg_orignode(msg)); tipc_printf(buf, ":DNOD(%x):", msg_destnode(msg)); - if (msg_routed(msg)) { + if (msg_routed(msg)) tipc_printf(buf, ":CSEQN(%u)", msg_transp_seqno(msg)); - } } if (msg_user(msg) == LINK_CONFIG) { - u32* raw = (u32*)msg; - struct tipc_media_addr* orig = (struct tipc_media_addr*)&raw[5]; + u32 *raw = (u32 *)msg; + struct tipc_media_addr *orig = (struct tipc_media_addr *)&raw[5]; tipc_printf(buf, ":REQL(%u):", msg_req_links(msg)); tipc_printf(buf, ":DDOM(%x):", msg_dest_domain(msg)); tipc_printf(buf, ":NETID(%u):", msg_bc_netid(msg)); @@ -407,12 +404,10 @@ void tipc_msg_dbg(struct print_buf *buf, struct tipc_msg *msg, const char *str) tipc_printf(buf, "TO(%u):", msg_bcgap_to(msg)); } tipc_printf(buf, "\n"); - if ((usr == CHANGEOVER_PROTOCOL) && (msg_msgcnt(msg))) { + if ((usr == CHANGEOVER_PROTOCOL) && (msg_msgcnt(msg))) tipc_msg_dbg(buf, msg_get_wrapped(msg), " /"); - } - if ((usr == MSG_FRAGMENTER) && (msg_type(msg) == FIRST_FRAGMENT)) { + if ((usr == MSG_FRAGMENTER) && (msg_type(msg) == FIRST_FRAGMENT)) tipc_msg_dbg(buf, msg_get_wrapped(msg), " /"); - } } #endif diff --git a/net/tipc/msg.h b/net/tipc/msg.h index 995d2da35b01..92c4c4fd7b3f 100644 --- a/net/tipc/msg.h +++ b/net/tipc/msg.h @@ -37,10 +37,51 @@ #ifndef _TIPC_MSG_H #define _TIPC_MSG_H -#include "core.h" +#include "bearer.h" #define TIPC_VERSION 2 +/* + * TIPC user data message header format, version 2: + * + * + * 1 0 9 8 7 6 5 4|3 2 1 0 9 8 7 6|5 4 3 2 1 0 9 8|7 6 5 4 3 2 1 0 + * +-+-+-+-+-+-+-+-+-+-+-+-+-+-+-+-+-+-+-+-+-+-+-+-+-+-+-+-+-+-+-+-+ + * w0:|vers | user |hdr sz |n|d|s|-| message size | + * +-+-+-+-+-+-+-+-+-+-+-+-+-+-+-+-+-+-+-+-+-+-+-+-+-+-+-+-+-+-+-+-+ + * w1:|mstyp| error |rer cnt|lsc|opt p| broadcast ack no | + * +-+-+-+-+-+-+-+-+-+-+-+-+-+-+-+-+-+-+-+-+-+-+-+-+-+-+-+-+-+-+-+-+ + * w2:| link level ack no | broadcast/link level seq no | + * +-+-+-+-+-+-+-+-+-+-+-+-+-+-+-+-+-+-+-+-+-+-+-+-+-+-+-+-+-+-+-+-+ + * w3:| previous node | + * +-+-+-+-+-+-+-+-+-+-+-+-+-+-+-+-+-+-+-+-+-+-+-+-+-+-+-+-+-+-+-+-+ + * w4:| originating port | + * +-+-+-+-+-+-+-+-+-+-+-+-+-+-+-+-+-+-+-+-+-+-+-+-+-+-+-+-+-+-+-+-+ + * w5:| destination port | + * +-+-+-+-+-+-+-+-+-+-+-+-+-+-+-+-+-+-+-+-+-+-+-+-+-+-+-+-+-+-+-+-+ + * w6:| originating node | + * +-+-+-+-+-+-+-+-+-+-+-+-+-+-+-+-+-+-+-+-+-+-+-+-+-+-+-+-+-+-+-+-+ + * w7:| destination node | + * +-+-+-+-+-+-+-+-+-+-+-+-+-+-+-+-+-+-+-+-+-+-+-+-+-+-+-+-+-+-+-+-+ + * w8:| name type / transport sequence number | + * +-+-+-+-+-+-+-+-+-+-+-+-+-+-+-+-+-+-+-+-+-+-+-+-+-+-+-+-+-+-+-+-+ + * w9:| name instance/multicast lower bound | + * +-+-+-+-+-+-+-+-+-+-+-+-+-+-+-+-+-+-+-+-+-+-+-+-+-+-+-+-+-+-+-+-+ + * wA:| multicast upper bound | + * +-+-+-+-+-+-+-+-+-+-+-+-+-+-+-+-+-+-+-+-+-+-+-+-+-+-+-+-+-+-+-+-+ + * / / + * \ options \ + * / / + * +-+-+-+-+-+-+-+-+-+-+-+-+-+-+-+-+-+-+-+-+-+-+-+-+-+-+-+-+-+-+-+-+ + * + */ + +#define TIPC_CONN_MSG 0 +#define TIPC_MCAST_MSG 1 +#define TIPC_NAMED_MSG 2 +#define TIPC_DIRECT_MSG 3 + + #define SHORT_H_SIZE 24 /* Connected, in-cluster messages */ #define DIR_MSG_H_SIZE 32 /* Directly addressed messages */ #define LONG_H_SIZE 40 /* Named messages */ @@ -52,20 +93,26 @@ #define MAX_MSG_SIZE (MAX_H_SIZE + TIPC_MAX_USER_MSG_SIZE) -/* - TIPC user data message header format, version 2 +struct tipc_msg { + __be32 hdr[15]; +}; - - Fundamental definitions available to privileged TIPC users - are located in tipc_msg.h. - - Remaining definitions available to TIPC internal users appear below. -*/ +static inline u32 msg_word(struct tipc_msg *m, u32 pos) +{ + return ntohl(m->hdr[pos]); +} static inline void msg_set_word(struct tipc_msg *m, u32 w, u32 val) { m->hdr[w] = htonl(val); } +static inline u32 msg_bits(struct tipc_msg *m, u32 w, u32 pos, u32 mask) +{ + return (msg_word(m, w) >> pos) & mask; +} + static inline void msg_set_bits(struct tipc_msg *m, u32 w, u32 pos, u32 mask, u32 val) { @@ -104,7 +151,7 @@ static inline u32 msg_user(struct tipc_msg *m) static inline u32 msg_isdata(struct tipc_msg *m) { - return (msg_user(m) <= TIPC_CRITICAL_IMPORTANCE); + return msg_user(m) <= TIPC_CRITICAL_IMPORTANCE; } static inline void msg_set_user(struct tipc_msg *m, u32 n) @@ -112,16 +159,36 @@ static inline void msg_set_user(struct tipc_msg *m, u32 n) msg_set_bits(m, 0, 25, 0xf, n); } +static inline u32 msg_importance(struct tipc_msg *m) +{ + return msg_bits(m, 0, 25, 0xf); +} + static inline void msg_set_importance(struct tipc_msg *m, u32 i) { msg_set_user(m, i); } -static inline void msg_set_hdr_sz(struct tipc_msg *m,u32 n) +static inline u32 msg_hdr_sz(struct tipc_msg *m) +{ + return msg_bits(m, 0, 21, 0xf) << 2; +} + +static inline void msg_set_hdr_sz(struct tipc_msg *m, u32 n) { msg_set_bits(m, 0, 21, 0xf, n>>2); } +static inline u32 msg_size(struct tipc_msg *m) +{ + return msg_bits(m, 0, 0, 0x1ffff); +} + +static inline u32 msg_data_sz(struct tipc_msg *m) +{ + return msg_size(m) - msg_hdr_sz(m); +} + static inline int msg_non_seq(struct tipc_msg *m) { return msg_bits(m, 0, 20, 1); @@ -162,11 +229,36 @@ static inline void msg_set_size(struct tipc_msg *m, u32 sz) * Word 1 */ +static inline u32 msg_type(struct tipc_msg *m) +{ + return msg_bits(m, 1, 29, 0x7); +} + static inline void msg_set_type(struct tipc_msg *m, u32 n) { msg_set_bits(m, 1, 29, 0x7, n); } +static inline u32 msg_named(struct tipc_msg *m) +{ + return msg_type(m) == TIPC_NAMED_MSG; +} + +static inline u32 msg_mcast(struct tipc_msg *m) +{ + return msg_type(m) == TIPC_MCAST_MSG; +} + +static inline u32 msg_connected(struct tipc_msg *m) +{ + return msg_type(m) == TIPC_CONN_MSG; +} + +static inline u32 msg_errcode(struct tipc_msg *m) +{ + return msg_bits(m, 1, 25, 0xf); +} + static inline void msg_set_errcode(struct tipc_msg *m, u32 err) { msg_set_bits(m, 1, 25, 0xf, err); @@ -257,31 +349,68 @@ static inline void msg_set_destnode_cache(struct tipc_msg *m, u32 dnode) */ +static inline u32 msg_prevnode(struct tipc_msg *m) +{ + return msg_word(m, 3); +} + static inline void msg_set_prevnode(struct tipc_msg *m, u32 a) { msg_set_word(m, 3, a); } +static inline u32 msg_origport(struct tipc_msg *m) +{ + return msg_word(m, 4); +} + static inline void msg_set_origport(struct tipc_msg *m, u32 p) { msg_set_word(m, 4, p); } +static inline u32 msg_destport(struct tipc_msg *m) +{ + return msg_word(m, 5); +} + static inline void msg_set_destport(struct tipc_msg *m, u32 p) { msg_set_word(m, 5, p); } +static inline u32 msg_mc_netid(struct tipc_msg *m) +{ + return msg_word(m, 5); +} + static inline void msg_set_mc_netid(struct tipc_msg *m, u32 p) { msg_set_word(m, 5, p); } +static inline int msg_short(struct tipc_msg *m) +{ + return msg_hdr_sz(m) == 24; +} + +static inline u32 msg_orignode(struct tipc_msg *m) +{ + if (likely(msg_short(m))) + return msg_prevnode(m); + return msg_word(m, 6); +} + static inline void msg_set_orignode(struct tipc_msg *m, u32 a) { msg_set_word(m, 6, a); } +static inline u32 msg_destnode(struct tipc_msg *m) +{ + return msg_word(m, 7); +} + static inline void msg_set_destnode(struct tipc_msg *m, u32 a) { msg_set_word(m, 7, a); @@ -289,14 +418,19 @@ static inline void msg_set_destnode(struct tipc_msg *m, u32 a) static inline int msg_is_dest(struct tipc_msg *m, u32 d) { - return(msg_short(m) || (msg_destnode(m) == d)); + return msg_short(m) || (msg_destnode(m) == d); } static inline u32 msg_routed(struct tipc_msg *m) { if (likely(msg_short(m))) return 0; - return(msg_destnode(m) ^ msg_orignode(m)) >> 11; + return (msg_destnode(m) ^ msg_orignode(m)) >> 11; +} + +static inline u32 msg_nametype(struct tipc_msg *m) +{ + return msg_word(m, 8); } static inline void msg_set_nametype(struct tipc_msg *m, u32 n) @@ -324,6 +458,16 @@ static inline void msg_set_transp_seqno(struct tipc_msg *m, u32 n) msg_set_word(m, 8, n); } +static inline u32 msg_nameinst(struct tipc_msg *m) +{ + return msg_word(m, 9); +} + +static inline u32 msg_namelower(struct tipc_msg *m) +{ + return msg_nameinst(m); +} + static inline void msg_set_namelower(struct tipc_msg *m, u32 n) { msg_set_word(m, 9, n); @@ -334,11 +478,21 @@ static inline void msg_set_nameinst(struct tipc_msg *m, u32 n) msg_set_namelower(m, n); } +static inline u32 msg_nameupper(struct tipc_msg *m) +{ + return msg_word(m, 10); +} + static inline void msg_set_nameupper(struct tipc_msg *m, u32 n) { msg_set_word(m, 10, n); } +static inline unchar *msg_data(struct tipc_msg *m) +{ + return ((unchar *)m) + msg_hdr_sz(m); +} + static inline struct tipc_msg *msg_get_wrapped(struct tipc_msg *m) { return (struct tipc_msg *)msg_data(m); @@ -386,7 +540,7 @@ static inline struct tipc_msg *msg_get_wrapped(struct tipc_msg *m) #define MSG_BUNDLER 6 #define LINK_PROTOCOL 7 #define CONN_MANAGER 8 -#define ROUTE_DISTRIBUTOR 9 +#define ROUTE_DISTRIBUTOR 9 /* obsoleted */ #define CHANGEOVER_PROTOCOL 10 #define NAME_DISTRIBUTOR 11 #define MSG_FRAGMENTER 12 @@ -632,7 +786,7 @@ static inline void msg_set_bcast_tag(struct tipc_msg *m, u32 n) static inline u32 msg_max_pkt(struct tipc_msg *m) { - return (msg_bits(m, 9, 16, 0xffff) * 4); + return msg_bits(m, 9, 16, 0xffff) * 4; } static inline void msg_set_max_pkt(struct tipc_msg *m, u32 n) @@ -665,11 +819,6 @@ static inline void msg_set_remote_node(struct tipc_msg *m, u32 a) msg_set_word(m, msg_hdr_sz(m)/4, a); } -static inline void msg_set_dataoctet(struct tipc_msg *m, u32 pos) -{ - msg_data(m)[pos + 4] = 1; -} - /* * Segmentation message types */ @@ -696,7 +845,7 @@ static inline void msg_set_dataoctet(struct tipc_msg *m, u32 pos) * Routing table message types */ #define EXT_ROUTING_TABLE 0 -#define LOCAL_ROUTING_TABLE 1 +#define LOCAL_ROUTING_TABLE 1 /* obsoleted */ #define SLAVE_ROUTING_TABLE 2 #define ROUTE_ADDITION 3 #define ROUTE_REMOVAL 4 @@ -714,7 +863,7 @@ void tipc_msg_init(struct tipc_msg *m, u32 user, u32 type, int tipc_msg_calc_data_size(struct iovec const *msg_sect, u32 num_sect); int tipc_msg_build(struct tipc_msg *hdr, struct iovec const *msg_sect, u32 num_sect, - int max_size, int usrmem, struct sk_buff** buf); + int max_size, int usrmem, struct sk_buff **buf); static inline void msg_set_media_addr(struct tipc_msg *m, struct tipc_media_addr *a) { @@ -723,7 +872,7 @@ static inline void msg_set_media_addr(struct tipc_msg *m, struct tipc_media_addr static inline void msg_get_media_addr(struct tipc_msg *m, struct tipc_media_addr *a) { - memcpy(a, &((int*)m)[5], sizeof(*a)); + memcpy(a, &((int *)m)[5], sizeof(*a)); } #endif diff --git a/net/tipc/name_distr.c b/net/tipc/name_distr.c index 6ac3c543250b..483c226c9581 100644 --- a/net/tipc/name_distr.c +++ b/net/tipc/name_distr.c @@ -35,10 +35,7 @@ */ #include "core.h" -#include "cluster.h" -#include "dbg.h" #include "link.h" -#include "msg.h" #include "name_distr.h" #define ITEM_SIZE sizeof(struct distr_item) @@ -76,7 +73,7 @@ struct distr_item { */ static LIST_HEAD(publ_root); -static u32 publ_cnt = 0; +static u32 publ_cnt; /** * publ_to_item - add publication info to a publication message @@ -89,7 +86,6 @@ static void publ_to_item(struct distr_item *i, struct publication *p) i->upper = htonl(p->upper); i->ref = htonl(p->ref); i->key = htonl(p->key); - dbg("publ_to_item: %u, %u, %u\n", p->type, p->lower, p->upper); } /** @@ -98,7 +94,7 @@ static void publ_to_item(struct distr_item *i, struct publication *p) static struct sk_buff *named_prepare_buf(u32 type, u32 size, u32 dest) { - struct sk_buff *buf = buf_acquire(LONG_H_SIZE + size); + struct sk_buff *buf = tipc_buf_acquire(LONG_H_SIZE + size); struct tipc_msg *msg; if (buf != NULL) { @@ -109,6 +105,26 @@ static struct sk_buff *named_prepare_buf(u32 type, u32 size, u32 dest) return buf; } +static void named_cluster_distribute(struct sk_buff *buf) +{ + struct sk_buff *buf_copy; + struct tipc_node *n_ptr; + u32 n_num; + + for (n_num = 1; n_num <= tipc_net.highest_node; n_num++) { + n_ptr = tipc_net.nodes[n_num]; + if (n_ptr && tipc_node_has_active_links(n_ptr)) { + buf_copy = skb_copy(buf, GFP_ATOMIC); + if (!buf_copy) + break; + msg_set_destnode(buf_msg(buf_copy), n_ptr->addr); + tipc_link_send(buf_copy, n_ptr->addr, n_ptr->addr); + } + } + + buf_discard(buf); +} + /** * tipc_named_publish - tell other nodes about a new publication by this node */ @@ -129,8 +145,7 @@ void tipc_named_publish(struct publication *publ) item = (struct distr_item *)msg_data(buf_msg(buf)); publ_to_item(item, publ); - dbg("tipc_named_withdraw: broadcasting publish msg\n"); - tipc_cltr_broadcast(buf); + named_cluster_distribute(buf); } /** @@ -153,8 +168,7 @@ void tipc_named_withdraw(struct publication *publ) item = (struct distr_item *)msg_data(buf_msg(buf)); publ_to_item(item, publ); - dbg("tipc_named_withdraw: broadcasting withdraw msg\n"); - tipc_cltr_broadcast(buf); + named_cluster_distribute(buf); } /** @@ -191,9 +205,6 @@ void tipc_named_node_up(unsigned long node) left -= ITEM_SIZE; if (!left) { msg_set_link_selector(buf_msg(buf), node); - dbg("tipc_named_node_up: sending publish msg to " - "<%u.%u.%u>\n", tipc_zone(node), - tipc_cluster(node), tipc_node(node)); tipc_link_send(buf, node, node); buf = NULL; } @@ -218,8 +229,6 @@ static void node_is_down(struct publication *publ) struct publication *p; write_lock_bh(&tipc_nametbl_lock); - dbg("node_is_down: withdrawing %u, %u, %u\n", - publ->type, publ->lower, publ->upper); publ->key += 1222345; p = tipc_nametbl_remove_publ(publ->type, publ->lower, publ->node, publ->ref, publ->key); @@ -231,9 +240,7 @@ static void node_is_down(struct publication *publ) publ->type, publ->lower, publ->node, publ->ref, publ->key); } - if (p) { - kfree(p); - } + kfree(p); } /** @@ -250,9 +257,6 @@ void tipc_named_recv(struct sk_buff *buf) write_lock_bh(&tipc_nametbl_lock); while (count--) { if (msg_type(msg) == PUBLICATION) { - dbg("tipc_named_recv: got publication for %u, %u, %u\n", - ntohl(item->type), ntohl(item->lower), - ntohl(item->upper)); publ = tipc_nametbl_insert_publ(ntohl(item->type), ntohl(item->lower), ntohl(item->upper), @@ -267,9 +271,6 @@ void tipc_named_recv(struct sk_buff *buf) (net_ev_handler)node_is_down); } } else if (msg_type(msg) == WITHDRAWAL) { - dbg("tipc_named_recv: got withdrawl for %u, %u, %u\n", - ntohl(item->type), ntohl(item->lower), - ntohl(item->upper)); publ = tipc_nametbl_remove_publ(ntohl(item->type), ntohl(item->lower), msg_orignode(msg), diff --git a/net/tipc/name_table.c b/net/tipc/name_table.c index 8ba79620db3f..205ed4a4e186 100644 --- a/net/tipc/name_table.c +++ b/net/tipc/name_table.c @@ -36,15 +36,10 @@ #include "core.h" #include "config.h" -#include "dbg.h" #include "name_table.h" #include "name_distr.h" -#include "addr.h" -#include "node_subscr.h" #include "subscr.h" #include "port.h" -#include "cluster.h" -#include "bcast.h" static int tipc_nametbl_size = 1024; /* must be a power of 2 */ @@ -109,14 +104,14 @@ struct name_table { u32 local_publ_count; }; -static struct name_table table = { NULL } ; +static struct name_table table; static atomic_t rsv_publ_ok = ATOMIC_INIT(0); DEFINE_RWLOCK(tipc_nametbl_lock); static int hash(int x) { - return(x & (tipc_nametbl_size - 1)); + return x & (tipc_nametbl_size - 1); } /** @@ -177,8 +172,6 @@ static struct name_seq *tipc_nameseq_create(u32 type, struct hlist_head *seq_hea spin_lock_init(&nseq->lock); nseq->type = type; nseq->sseqs = sseq; - dbg("tipc_nameseq_create(): nseq = %p, type %u, ssseqs %p, ff: %u\n", - nseq, type, nseq->sseqs, nseq->first_free); nseq->alloc = 1; INIT_HLIST_NODE(&nseq->ns_list); INIT_LIST_HEAD(&nseq->subscriptions); @@ -256,8 +249,6 @@ static struct publication *tipc_nameseq_insert_publ(struct name_seq *nseq, int created_subseq = 0; sseq = nameseq_find_subseq(nseq, lower); - dbg("nameseq_ins: for seq %p, {%u,%u}, found sseq %p\n", - nseq, type, lower, sseq); if (sseq) { /* Lower end overlaps existing entry => need an exact match */ @@ -294,38 +285,30 @@ static struct publication *tipc_nameseq_insert_publ(struct name_seq *nseq, type, lower, upper); return NULL; } - dbg("Allocated %u more sseqs\n", nseq->alloc); memcpy(sseqs, nseq->sseqs, nseq->alloc * sizeof(struct sub_seq)); kfree(nseq->sseqs); nseq->sseqs = sseqs; nseq->alloc *= 2; } - dbg("Have %u sseqs for type %u\n", nseq->alloc, type); /* Insert new sub-sequence */ - dbg("ins in pos %u, ff = %u\n", inspos, nseq->first_free); sseq = &nseq->sseqs[inspos]; freesseq = &nseq->sseqs[nseq->first_free]; - memmove(sseq + 1, sseq, (freesseq - sseq) * sizeof (*sseq)); - memset(sseq, 0, sizeof (*sseq)); + memmove(sseq + 1, sseq, (freesseq - sseq) * sizeof(*sseq)); + memset(sseq, 0, sizeof(*sseq)); nseq->first_free++; sseq->lower = lower; sseq->upper = upper; created_subseq = 1; } - dbg("inserting {%u,%u,%u} from <0x%x:%u> into sseq %p(%u,%u) of seq %p\n", - type, lower, upper, node, port, sseq, - sseq->lower, sseq->upper, nseq); /* Insert a publication: */ publ = publ_create(type, lower, upper, scope, node, port, key); if (!publ) return NULL; - dbg("inserting publ %p, node=0x%x publ->node=0x%x, subscr->node=%p\n", - publ, node, publ->node, publ->subscr.node); sseq->zone_list_size++; if (!sseq->zone_list) @@ -360,7 +343,6 @@ static struct publication *tipc_nameseq_insert_publ(struct name_seq *nseq, * Any subscriptions waiting for notification? */ list_for_each_entry_safe(s, st, &nseq->subscriptions, nameseq_list) { - dbg("calling report_overlap()\n"); tipc_subscr_report_overlap(s, publ->lower, publ->upper, @@ -398,9 +380,6 @@ static struct publication *tipc_nameseq_remove_publ(struct name_seq *nseq, u32 i if (!sseq) return NULL; - dbg("tipc_nameseq_remove_publ: seq: %p, sseq %p, {%u,%u}, key %u\n", - nseq, sseq, nseq->type, inst, key); - /* Remove publication from zone scope list */ prev = sseq->zone_list; @@ -492,7 +471,7 @@ end_node: if (!sseq->zone_list) { free = &nseq->sseqs[nseq->first_free--]; - memmove(sseq, sseq + 1, (free - (sseq + 1)) * sizeof (*sseq)); + memmove(sseq, sseq + 1, (free - (sseq + 1)) * sizeof(*sseq)); removed_subseq = 1; } @@ -528,7 +507,7 @@ static void tipc_nameseq_subscribe(struct name_seq *nseq, struct subscription *s while (sseq != &nseq->sseqs[nseq->first_free]) { struct publication *zl = sseq->zone_list; - if (zl && tipc_subscr_overlap(s,sseq->lower,sseq->upper)) { + if (zl && tipc_subscr_overlap(s, sseq->lower, sseq->upper)) { struct publication *crs = zl; int must_report = 1; @@ -554,15 +533,10 @@ static struct name_seq *nametbl_find_seq(u32 type) struct hlist_node *seq_node; struct name_seq *ns; - dbg("find_seq %u,(%u,0x%x) table = %p, hash[type] = %u\n", - type, htonl(type), type, table.types, hash(type)); - seq_head = &table.types[hash(type)]; hlist_for_each_entry(ns, seq_node, seq_head, ns_list) { - if (ns->type == type) { - dbg("found %p\n", ns); + if (ns->type == type) return ns; - } } return NULL; @@ -573,18 +547,14 @@ struct publication *tipc_nametbl_insert_publ(u32 type, u32 lower, u32 upper, { struct name_seq *seq = nametbl_find_seq(type); - dbg("tipc_nametbl_insert_publ: {%u,%u,%u} found %p\n", type, lower, upper, seq); if (lower > upper) { warn("Failed to publish illegal {%u,%u,%u}\n", type, lower, upper); return NULL; } - dbg("Publishing {%u,%u,%u} from 0x%x\n", type, lower, upper, node); - if (!seq) { + if (!seq) seq = tipc_nameseq_create(type, &table.types[hash(type)]); - dbg("tipc_nametbl_insert_publ: created %p\n", seq); - } if (!seq) return NULL; @@ -601,7 +571,6 @@ struct publication *tipc_nametbl_remove_publ(u32 type, u32 lower, if (!seq) return NULL; - dbg("Withdrawing {%u,%u} from 0x%x\n", type, lower, node); publ = tipc_nameseq_remove_publ(seq, lower, node, ref, key); if (!seq->first_free && list_empty(&seq->subscriptions)) { @@ -613,8 +582,7 @@ struct publication *tipc_nametbl_remove_publ(u32 type, u32 lower, } /* - * tipc_nametbl_translate(): Translate tipc_name -> tipc_portid. - * Very time-critical. + * tipc_nametbl_translate - translate name to port id * * Note: on entry 'destnode' is the search domain used during translation; * on exit it passes back the node address of the matching port (if any) @@ -685,7 +653,6 @@ found: } spin_unlock_bh(&seq->lock); not_found: - *destnode = 0; read_unlock_bh(&tipc_nametbl_lock); return 0; } @@ -784,9 +751,8 @@ struct publication *tipc_nametbl_publish(u32 type, u32 lower, u32 upper, table.local_publ_count++; publ = tipc_nametbl_insert_publ(type, lower, upper, scope, tipc_own_addr, port_ref, key); - if (publ && (scope != TIPC_NODE_SCOPE)) { + if (publ && (scope != TIPC_NODE_SCOPE)) tipc_named_publish(publ); - } write_unlock_bh(&tipc_nametbl_lock); return publ; } @@ -799,7 +765,6 @@ int tipc_nametbl_withdraw(u32 type, u32 lower, u32 ref, u32 key) { struct publication *publ; - dbg("tipc_nametbl_withdraw: {%u,%u}, key=%u\n", type, lower, key); write_lock_bh(&tipc_nametbl_lock); publ = tipc_nametbl_remove_publ(type, lower, tipc_own_addr, ref, key); if (likely(publ)) { @@ -829,13 +794,10 @@ void tipc_nametbl_subscribe(struct subscription *s) write_lock_bh(&tipc_nametbl_lock); seq = nametbl_find_seq(type); - if (!seq) { + if (!seq) seq = tipc_nameseq_create(type, &table.types[hash(type)]); - } - if (seq){ + if (seq) { spin_lock_bh(&seq->lock); - dbg("tipc_nametbl_subscribe:found %p for {%u,%u,%u}\n", - seq, type, s->seq.lower, s->seq.upper); tipc_nameseq_subscribe(seq, s); spin_unlock_bh(&seq->lock); } else { @@ -855,7 +817,7 @@ void tipc_nametbl_unsubscribe(struct subscription *s) write_lock_bh(&tipc_nametbl_lock); seq = nametbl_find_seq(s->seq.type); - if (seq != NULL){ + if (seq != NULL) { spin_lock_bh(&seq->lock); list_del_init(&s->nameseq_list); spin_unlock_bh(&seq->lock); @@ -877,7 +839,7 @@ static void subseq_list(struct sub_seq *sseq, struct print_buf *buf, u32 depth, u32 index) { char portIdStr[27]; - char *scopeStr; + const char *scope_str[] = {"", " zone", " cluster", " node"}; struct publication *publ = sseq->zone_list; tipc_printf(buf, "%-10u %-10u ", sseq->lower, sseq->upper); @@ -888,20 +850,13 @@ static void subseq_list(struct sub_seq *sseq, struct print_buf *buf, u32 depth, } do { - sprintf (portIdStr, "<%u.%u.%u:%u>", + sprintf(portIdStr, "<%u.%u.%u:%u>", tipc_zone(publ->node), tipc_cluster(publ->node), tipc_node(publ->node), publ->ref); tipc_printf(buf, "%-26s ", portIdStr); if (depth > 3) { - if (publ->node != tipc_own_addr) - scopeStr = ""; - else if (publ->scope == TIPC_NODE_SCOPE) - scopeStr = "node"; - else if (publ->scope == TIPC_CLUSTER_SCOPE) - scopeStr = "cluster"; - else - scopeStr = "zone"; - tipc_printf(buf, "%-10u %s", publ->key, scopeStr); + tipc_printf(buf, "%-10u %s", publ->key, + scope_str[publ->scope]); } publ = publ->zone_list_next; @@ -951,24 +906,19 @@ static void nameseq_list(struct name_seq *seq, struct print_buf *buf, u32 depth, static void nametbl_header(struct print_buf *buf, u32 depth) { - tipc_printf(buf, "Type "); - - if (depth > 1) - tipc_printf(buf, "Lower Upper "); - if (depth > 2) - tipc_printf(buf, "Port Identity "); - if (depth > 3) - tipc_printf(buf, "Publication"); - - tipc_printf(buf, "\n-----------"); - - if (depth > 1) - tipc_printf(buf, "--------------------- "); - if (depth > 2) - tipc_printf(buf, "-------------------------- "); - if (depth > 3) - tipc_printf(buf, "------------------"); - + const char *header[] = { + "Type ", + "Lower Upper ", + "Port Identity ", + "Publication Scope" + }; + + int i; + + if (depth > 4) + depth = 4; + for (i = 0; i < depth; i++) + tipc_printf(buf, header[i]); tipc_printf(buf, "\n"); } @@ -1023,16 +973,6 @@ static void nametbl_list(struct print_buf *buf, u32 depth_info, } } -#if 0 -void tipc_nametbl_print(struct print_buf *buf, const char *str) -{ - tipc_printf(buf, str); - read_lock_bh(&tipc_nametbl_lock); - nametbl_list(buf, 0, 0, 0, 0); - read_unlock_bh(&tipc_nametbl_lock); -} -#endif - #define MAX_NAME_TBL_QUERY 32768 struct sk_buff *tipc_nametbl_get(const void *req_tlv_area, int req_tlv_space) @@ -1065,13 +1005,6 @@ struct sk_buff *tipc_nametbl_get(const void *req_tlv_area, int req_tlv_space) return buf; } -#if 0 -void tipc_nametbl_dump(void) -{ - nametbl_list(TIPC_CONS, 0, 0, 0, 0); -} -#endif - int tipc_nametbl_init(void) { table.types = kcalloc(tipc_nametbl_size, sizeof(struct hlist_head), diff --git a/net/tipc/name_table.h b/net/tipc/name_table.h index 139882d4ed00..d228bd682655 100644 --- a/net/tipc/name_table.h +++ b/net/tipc/name_table.h @@ -46,7 +46,7 @@ struct port_list; * TIPC name types reserved for internal TIPC use (both current and planned) */ -#define TIPC_ZM_SRV 3 /* zone master service name type */ +#define TIPC_ZM_SRV 3 /* zone master service name type */ /** diff --git a/net/tipc/net.c b/net/tipc/net.c index f61b7694138b..9bacfd00b91e 100644 --- a/net/tipc/net.c +++ b/net/tipc/net.c @@ -35,18 +35,10 @@ */ #include "core.h" -#include "bearer.h" #include "net.h" -#include "zone.h" -#include "addr.h" -#include "name_table.h" #include "name_distr.h" #include "subscr.h" -#include "link.h" -#include "msg.h" #include "port.h" -#include "bcast.h" -#include "discover.h" #include "config.h" /* @@ -116,55 +108,25 @@ */ DEFINE_RWLOCK(tipc_net_lock); -static struct _zone *tipc_zones[256] = { NULL, }; -struct network tipc_net = { tipc_zones }; +struct network tipc_net; -struct tipc_node *tipc_net_select_remote_node(u32 addr, u32 ref) +static int net_start(void) { - return tipc_zone_select_remote_node(tipc_net.zones[tipc_zone(addr)], addr, ref); -} - -u32 tipc_net_select_router(u32 addr, u32 ref) -{ - return tipc_zone_select_router(tipc_net.zones[tipc_zone(addr)], addr, ref); -} - -#if 0 -u32 tipc_net_next_node(u32 a) -{ - if (tipc_net.zones[tipc_zone(a)]) - return tipc_zone_next_node(a); - return 0; -} -#endif - -void tipc_net_remove_as_router(u32 router) -{ - u32 z_num; + tipc_net.nodes = kcalloc(tipc_max_nodes + 1, + sizeof(*tipc_net.nodes), GFP_ATOMIC); + tipc_net.highest_node = 0; - for (z_num = 1; z_num <= tipc_max_zones; z_num++) { - if (!tipc_net.zones[z_num]) - continue; - tipc_zone_remove_as_router(tipc_net.zones[z_num], router); - } -} - -void tipc_net_send_external_routes(u32 dest) -{ - u32 z_num; - - for (z_num = 1; z_num <= tipc_max_zones; z_num++) { - if (tipc_net.zones[z_num]) - tipc_zone_send_external_routes(tipc_net.zones[z_num], dest); - } + return tipc_net.nodes ? 0 : -ENOMEM; } static void net_stop(void) { - u32 z_num; + u32 n_num; - for (z_num = 1; z_num <= tipc_max_zones; z_num++) - tipc_zone_delete(tipc_net.zones[z_num]); + for (n_num = 1; n_num <= tipc_net.highest_node; n_num++) + tipc_node_delete(tipc_net.nodes[n_num]); + kfree(tipc_net.nodes); + tipc_net.nodes = NULL; } static void net_route_named_msg(struct sk_buff *buf) @@ -174,22 +136,18 @@ static void net_route_named_msg(struct sk_buff *buf) u32 dport; if (!msg_named(msg)) { - msg_dbg(msg, "tipc_net->drop_nam:"); buf_discard(buf); return; } dnode = addr_domain(msg_lookup_scope(msg)); dport = tipc_nametbl_translate(msg_nametype(msg), msg_nameinst(msg), &dnode); - dbg("tipc_net->lookup<%u,%u>-><%u,%x>\n", - msg_nametype(msg), msg_nameinst(msg), dport, dnode); if (dport) { msg_set_destnode(msg, dnode); msg_set_destport(msg, dport); tipc_net_route_msg(buf); return; } - msg_dbg(msg, "tipc_net->rej:NO NAME: "); tipc_reject_msg(buf, TIPC_ERR_NO_NAME); } @@ -205,18 +163,14 @@ void tipc_net_route_msg(struct sk_buff *buf) msg_incr_reroute_cnt(msg); if (msg_reroute_cnt(msg) > 6) { if (msg_errcode(msg)) { - msg_dbg(msg, "NET>DISC>:"); buf_discard(buf); } else { - msg_dbg(msg, "NET>REJ>:"); tipc_reject_msg(buf, msg_destport(msg) ? TIPC_ERR_NO_PORT : TIPC_ERR_NO_NAME); } return; } - msg_dbg(msg, "tipc_net->rout: "); - /* Handle message for this node */ dnode = msg_short(msg) ? tipc_own_addr : msg_destnode(msg); if (tipc_in_scope(dnode, tipc_own_addr)) { @@ -230,9 +184,6 @@ void tipc_net_route_msg(struct sk_buff *buf) return; } switch (msg_user(msg)) { - case ROUTE_DISTRIBUTOR: - tipc_cltr_recv_routing_table(buf); - break; case NAME_DISTRIBUTOR: tipc_named_recv(buf); break; @@ -240,14 +191,13 @@ void tipc_net_route_msg(struct sk_buff *buf) tipc_port_recv_proto_msg(buf); break; default: - msg_dbg(msg,"DROP/NET/<REC<"); buf_discard(buf); } return; } /* Handle message for another node */ - msg_dbg(msg, "NET>SEND>: "); + skb_trim(buf, msg_size(msg)); tipc_link_send(buf, dnode, msg_link_selector(msg)); } @@ -267,10 +217,12 @@ int tipc_net_start(u32 addr) tipc_named_reinit(); tipc_port_reinit(); - if ((res = tipc_cltr_init()) || - (res = tipc_bclink_init())) { + res = net_start(); + if (res) + return res; + res = tipc_bclink_init(); + if (res) return res; - } tipc_k_signal((Handler)tipc_subscr_start, 0); tipc_k_signal((Handler)tipc_cfg_init, 0); diff --git a/net/tipc/net.h b/net/tipc/net.h index de2b9ad8f646..4ae59ad04893 100644 --- a/net/tipc/net.h +++ b/net/tipc/net.h @@ -37,26 +37,26 @@ #ifndef _TIPC_NET_H #define _TIPC_NET_H -struct _zone; +struct tipc_node; /** * struct network - TIPC network structure - * @zones: array of pointers to all zones within network + * @nodes: array of pointers to all nodes within cluster + * @highest_node: id of highest numbered node within cluster + * @links: number of (unicast) links to cluster */ struct network { - struct _zone **zones; + struct tipc_node **nodes; + u32 highest_node; + u32 links; }; extern struct network tipc_net; extern rwlock_t tipc_net_lock; -void tipc_net_remove_as_router(u32 router); -void tipc_net_send_external_routes(u32 dest); void tipc_net_route_msg(struct sk_buff *buf); -struct tipc_node *tipc_net_select_remote_node(u32 addr, u32 ref); -u32 tipc_net_select_router(u32 addr, u32 ref); int tipc_net_start(u32 addr); void tipc_net_stop(void); diff --git a/net/tipc/node.c b/net/tipc/node.c index b634942caba5..3af53e327f49 100644 --- a/net/tipc/node.c +++ b/net/tipc/node.c @@ -37,24 +37,14 @@ #include "core.h" #include "config.h" #include "node.h" -#include "cluster.h" -#include "net.h" -#include "addr.h" -#include "node_subscr.h" -#include "link.h" -#include "port.h" -#include "bearer.h" #include "name_distr.h" -void node_print(struct print_buf *buf, struct tipc_node *n_ptr, char *str); static void node_lost_contact(struct tipc_node *n_ptr); static void node_established_contact(struct tipc_node *n_ptr); -struct tipc_node *tipc_nodes = NULL; /* sorted list of nodes within cluster */ - static DEFINE_SPINLOCK(node_create_lock); -u32 tipc_own_tag = 0; +u32 tipc_own_tag; /** * tipc_node_create - create neighboring node @@ -68,75 +58,51 @@ u32 tipc_own_tag = 0; struct tipc_node *tipc_node_create(u32 addr) { - struct cluster *c_ptr; struct tipc_node *n_ptr; - struct tipc_node **curr_node; + u32 n_num; spin_lock_bh(&node_create_lock); - for (n_ptr = tipc_nodes; n_ptr; n_ptr = n_ptr->next) { - if (addr < n_ptr->addr) - break; - if (addr == n_ptr->addr) { - spin_unlock_bh(&node_create_lock); - return n_ptr; - } + n_ptr = tipc_node_find(addr); + if (n_ptr) { + spin_unlock_bh(&node_create_lock); + return n_ptr; } - n_ptr = kzalloc(sizeof(*n_ptr),GFP_ATOMIC); + n_ptr = kzalloc(sizeof(*n_ptr), GFP_ATOMIC); if (!n_ptr) { spin_unlock_bh(&node_create_lock); warn("Node creation failed, no memory\n"); return NULL; } - c_ptr = tipc_cltr_find(addr); - if (!c_ptr) { - c_ptr = tipc_cltr_create(addr); - } - if (!c_ptr) { - spin_unlock_bh(&node_create_lock); - kfree(n_ptr); - return NULL; - } - n_ptr->addr = addr; - spin_lock_init(&n_ptr->lock); + spin_lock_init(&n_ptr->lock); INIT_LIST_HEAD(&n_ptr->nsub); - n_ptr->owner = c_ptr; - tipc_cltr_attach_node(c_ptr, n_ptr); - n_ptr->last_router = -1; - - /* Insert node into ordered list */ - for (curr_node = &tipc_nodes; *curr_node; - curr_node = &(*curr_node)->next) { - if (addr < (*curr_node)->addr) { - n_ptr->next = *curr_node; - break; - } - } - (*curr_node) = n_ptr; + + n_num = tipc_node(addr); + tipc_net.nodes[n_num] = n_ptr; + if (n_num > tipc_net.highest_node) + tipc_net.highest_node = n_num; + spin_unlock_bh(&node_create_lock); return n_ptr; } void tipc_node_delete(struct tipc_node *n_ptr) { + u32 n_num; + if (!n_ptr) return; -#if 0 - /* Not needed because links are already deleted via tipc_bearer_stop() */ - - u32 l_num; - - for (l_num = 0; l_num < MAX_BEARERS; l_num++) { - link_delete(n_ptr->links[l_num]); - } -#endif - - dbg("node %x deleted\n", n_ptr->addr); + n_num = tipc_node(n_ptr->addr); + tipc_net.nodes[n_num] = NULL; kfree(n_ptr); + + while (!tipc_net.nodes[tipc_net.highest_node]) + if (--tipc_net.highest_node == 0) + break; } @@ -156,7 +122,6 @@ void tipc_node_link_up(struct tipc_node *n_ptr, struct link *l_ptr) l_ptr->name, l_ptr->b_ptr->net_plane); if (!active[0]) { - dbg(" link %x into %x/%x\n", l_ptr, &active[0], &active[1]); active[0] = active[1] = l_ptr; node_established_contact(n_ptr); return; @@ -237,23 +202,17 @@ void tipc_node_link_down(struct tipc_node *n_ptr, struct link *l_ptr) int tipc_node_has_active_links(struct tipc_node *n_ptr) { - return (n_ptr && - ((n_ptr->active_links[0]) || (n_ptr->active_links[1]))); + return n_ptr->active_links[0] != NULL; } int tipc_node_has_redundant_links(struct tipc_node *n_ptr) { - return (n_ptr->working_links > 1); -} - -static int tipc_node_has_active_routes(struct tipc_node *n_ptr) -{ - return (n_ptr && (n_ptr->last_router >= 0)); + return n_ptr->working_links > 1; } int tipc_node_is_up(struct tipc_node *n_ptr) { - return (tipc_node_has_active_links(n_ptr) || tipc_node_has_active_routes(n_ptr)); + return tipc_node_has_active_links(n_ptr); } struct tipc_node *tipc_node_attach_link(struct link *l_ptr) @@ -274,7 +233,7 @@ struct tipc_node *tipc_node_attach_link(struct link *l_ptr) if (!n_ptr->links[bearer_id]) { n_ptr->links[bearer_id] = l_ptr; - tipc_net.zones[tipc_zone(l_ptr->addr)]->links++; + tipc_net.links++; n_ptr->link_cnt++; return n_ptr; } @@ -288,7 +247,7 @@ struct tipc_node *tipc_node_attach_link(struct link *l_ptr) void tipc_node_detach_link(struct tipc_node *n_ptr, struct link *l_ptr) { n_ptr->links[l_ptr->b_ptr->identity] = NULL; - tipc_net.zones[tipc_zone(l_ptr->addr)]->links--; + tipc_net.links--; n_ptr->link_cnt--; } @@ -340,53 +299,34 @@ void tipc_node_detach_link(struct tipc_node *n_ptr, struct link *l_ptr) static void node_established_contact(struct tipc_node *n_ptr) { - struct cluster *c_ptr; - - dbg("node_established_contact:-> %x\n", n_ptr->addr); - if (!tipc_node_has_active_routes(n_ptr) && in_own_cluster(n_ptr->addr)) { - tipc_k_signal((Handler)tipc_named_node_up, n_ptr->addr); - } + tipc_k_signal((Handler)tipc_named_node_up, n_ptr->addr); /* Syncronize broadcast acks */ n_ptr->bclink.acked = tipc_bclink_get_last_sent(); - if (is_slave(tipc_own_addr)) - return; - if (!in_own_cluster(n_ptr->addr)) { - /* Usage case 1 (see above) */ - c_ptr = tipc_cltr_find(tipc_own_addr); - if (!c_ptr) - c_ptr = tipc_cltr_create(tipc_own_addr); - if (c_ptr) - tipc_cltr_bcast_new_route(c_ptr, n_ptr->addr, 1, - tipc_max_nodes); - return; - } - - c_ptr = n_ptr->owner; - if (is_slave(n_ptr->addr)) { - /* Usage case 2 (see above) */ - tipc_cltr_bcast_new_route(c_ptr, n_ptr->addr, 1, tipc_max_nodes); - tipc_cltr_send_local_routes(c_ptr, n_ptr->addr); - return; - } - if (n_ptr->bclink.supported) { - tipc_nmap_add(&tipc_cltr_bcast_nodes, n_ptr->addr); + tipc_nmap_add(&tipc_bcast_nmap, n_ptr->addr); if (n_ptr->addr < tipc_own_addr) tipc_own_tag++; } +} - /* Case 3 (see above) */ - tipc_net_send_external_routes(n_ptr->addr); - tipc_cltr_send_slave_routes(c_ptr, n_ptr->addr); - tipc_cltr_bcast_new_route(c_ptr, n_ptr->addr, LOWEST_SLAVE, - tipc_highest_allowed_slave); +static void node_cleanup_finished(unsigned long node_addr) +{ + struct tipc_node *n_ptr; + + read_lock_bh(&tipc_net_lock); + n_ptr = tipc_node_find(node_addr); + if (n_ptr) { + tipc_node_lock(n_ptr); + n_ptr->cleanup_required = 0; + tipc_node_unlock(n_ptr); + } + read_unlock_bh(&tipc_net_lock); } static void node_lost_contact(struct tipc_node *n_ptr) { - struct cluster *c_ptr; struct tipc_node_subscr *ns, *tns; char addr_string[16]; u32 i; @@ -394,7 +334,7 @@ static void node_lost_contact(struct tipc_node *n_ptr) /* Clean up broadcast reception remains */ n_ptr->bclink.gap_after = n_ptr->bclink.gap_to = 0; while (n_ptr->bclink.deferred_head) { - struct sk_buff* buf = n_ptr->bclink.deferred_head; + struct sk_buff *buf = n_ptr->bclink.deferred_head; n_ptr->bclink.deferred_head = buf->next; buf_discard(buf); } @@ -402,41 +342,14 @@ static void node_lost_contact(struct tipc_node *n_ptr) buf_discard(n_ptr->bclink.defragm); n_ptr->bclink.defragm = NULL; } - if (in_own_cluster(n_ptr->addr) && n_ptr->bclink.supported) { - tipc_bclink_acknowledge(n_ptr, mod(n_ptr->bclink.acked + 10000)); - } - /* Update routing tables */ - if (is_slave(tipc_own_addr)) { - tipc_net_remove_as_router(n_ptr->addr); - } else { - if (!in_own_cluster(n_ptr->addr)) { - /* Case 4 (see above) */ - c_ptr = tipc_cltr_find(tipc_own_addr); - tipc_cltr_bcast_lost_route(c_ptr, n_ptr->addr, 1, - tipc_max_nodes); - } else { - /* Case 5 (see above) */ - c_ptr = tipc_cltr_find(n_ptr->addr); - if (is_slave(n_ptr->addr)) { - tipc_cltr_bcast_lost_route(c_ptr, n_ptr->addr, 1, - tipc_max_nodes); - } else { - if (n_ptr->bclink.supported) { - tipc_nmap_remove(&tipc_cltr_bcast_nodes, - n_ptr->addr); - if (n_ptr->addr < tipc_own_addr) - tipc_own_tag--; - } - tipc_net_remove_as_router(n_ptr->addr); - tipc_cltr_bcast_lost_route(c_ptr, n_ptr->addr, - LOWEST_SLAVE, - tipc_highest_allowed_slave); - } - } + if (n_ptr->bclink.supported) { + tipc_bclink_acknowledge(n_ptr, + mod(n_ptr->bclink.acked + 10000)); + tipc_nmap_remove(&tipc_bcast_nmap, n_ptr->addr); + if (n_ptr->addr < tipc_own_addr) + tipc_own_tag--; } - if (tipc_node_has_active_routes(n_ptr)) - return; info("Lost contact with %s\n", tipc_addr_string_fill(addr_string, n_ptr->addr)); @@ -458,157 +371,11 @@ static void node_lost_contact(struct tipc_node *n_ptr) tipc_k_signal((Handler)ns->handle_node_down, (unsigned long)ns->usr_handle); } -} -/** - * tipc_node_select_next_hop - find the next-hop node for a message - * - * Called by when cluster local lookup has failed. - */ + /* Prevent re-contact with node until all cleanup is done */ -struct tipc_node *tipc_node_select_next_hop(u32 addr, u32 selector) -{ - struct tipc_node *n_ptr; - u32 router_addr; - - if (!tipc_addr_domain_valid(addr)) - return NULL; - - /* Look for direct link to destination processsor */ - n_ptr = tipc_node_find(addr); - if (n_ptr && tipc_node_has_active_links(n_ptr)) - return n_ptr; - - /* Cluster local system nodes *must* have direct links */ - if (!is_slave(addr) && in_own_cluster(addr)) - return NULL; - - /* Look for cluster local router with direct link to node */ - router_addr = tipc_node_select_router(n_ptr, selector); - if (router_addr) - return tipc_node_select(router_addr, selector); - - /* Slave nodes can only be accessed within own cluster via a - known router with direct link -- if no router was found,give up */ - if (is_slave(addr)) - return NULL; - - /* Inter zone/cluster -- find any direct link to remote cluster */ - addr = tipc_addr(tipc_zone(addr), tipc_cluster(addr), 0); - n_ptr = tipc_net_select_remote_node(addr, selector); - if (n_ptr && tipc_node_has_active_links(n_ptr)) - return n_ptr; - - /* Last resort -- look for any router to anywhere in remote zone */ - router_addr = tipc_net_select_router(addr, selector); - if (router_addr) - return tipc_node_select(router_addr, selector); - - return NULL; -} - -/** - * tipc_node_select_router - select router to reach specified node - * - * Uses a deterministic and fair algorithm for selecting router node. - */ - -u32 tipc_node_select_router(struct tipc_node *n_ptr, u32 ref) -{ - u32 ulim; - u32 mask; - u32 start; - u32 r; - - if (!n_ptr) - return 0; - - if (n_ptr->last_router < 0) - return 0; - ulim = ((n_ptr->last_router + 1) * 32) - 1; - - /* Start entry must be random */ - mask = tipc_max_nodes; - while (mask > ulim) - mask >>= 1; - start = ref & mask; - r = start; - - /* Lookup upwards with wrap-around */ - do { - if (((n_ptr->routers[r / 32]) >> (r % 32)) & 1) - break; - } while (++r <= ulim); - if (r > ulim) { - r = 1; - do { - if (((n_ptr->routers[r / 32]) >> (r % 32)) & 1) - break; - } while (++r < start); - assert(r != start); - } - assert(r && (r <= ulim)); - return tipc_addr(own_zone(), own_cluster(), r); -} - -void tipc_node_add_router(struct tipc_node *n_ptr, u32 router) -{ - u32 r_num = tipc_node(router); - - n_ptr->routers[r_num / 32] = - ((1 << (r_num % 32)) | n_ptr->routers[r_num / 32]); - n_ptr->last_router = tipc_max_nodes / 32; - while ((--n_ptr->last_router >= 0) && - !n_ptr->routers[n_ptr->last_router]); -} - -void tipc_node_remove_router(struct tipc_node *n_ptr, u32 router) -{ - u32 r_num = tipc_node(router); - - if (n_ptr->last_router < 0) - return; /* No routes */ - - n_ptr->routers[r_num / 32] = - ((~(1 << (r_num % 32))) & (n_ptr->routers[r_num / 32])); - n_ptr->last_router = tipc_max_nodes / 32; - while ((--n_ptr->last_router >= 0) && - !n_ptr->routers[n_ptr->last_router]); - - if (!tipc_node_is_up(n_ptr)) - node_lost_contact(n_ptr); -} - -#if 0 -void node_print(struct print_buf *buf, struct tipc_node *n_ptr, char *str) -{ - u32 i; - - tipc_printf(buf, "\n\n%s", str); - for (i = 0; i < MAX_BEARERS; i++) { - if (!n_ptr->links[i]) - continue; - tipc_printf(buf, "Links[%u]: %x, ", i, n_ptr->links[i]); - } - tipc_printf(buf, "Active links: [%x,%x]\n", - n_ptr->active_links[0], n_ptr->active_links[1]); -} -#endif - -u32 tipc_available_nodes(const u32 domain) -{ - struct tipc_node *n_ptr; - u32 cnt = 0; - - read_lock_bh(&tipc_net_lock); - for (n_ptr = tipc_nodes; n_ptr; n_ptr = n_ptr->next) { - if (!tipc_in_scope(domain, n_ptr->addr)) - continue; - if (tipc_node_is_up(n_ptr)) - cnt++; - } - read_unlock_bh(&tipc_net_lock); - return cnt; + n_ptr->cleanup_required = 1; + tipc_k_signal((Handler)node_cleanup_finished, n_ptr->addr); } struct sk_buff *tipc_node_get_nodes(const void *req_tlv_area, int req_tlv_space) @@ -618,6 +385,7 @@ struct sk_buff *tipc_node_get_nodes(const void *req_tlv_area, int req_tlv_space) struct tipc_node *n_ptr; struct tipc_node_info node_info; u32 payload_size; + u32 n_num; if (!TLV_CHECK(req_tlv_area, req_tlv_space, TIPC_TLV_NET_ADDR)) return tipc_cfg_reply_error_string(TIPC_CFG_TLV_ERROR); @@ -628,15 +396,15 @@ struct sk_buff *tipc_node_get_nodes(const void *req_tlv_area, int req_tlv_space) " (network address)"); read_lock_bh(&tipc_net_lock); - if (!tipc_nodes) { + if (!tipc_net.nodes) { read_unlock_bh(&tipc_net_lock); return tipc_cfg_reply_none(); } - /* For now, get space for all other nodes - (will need to modify this when slave nodes are supported */ + /* For now, get space for all other nodes */ - payload_size = TLV_SPACE(sizeof(node_info)) * (tipc_max_nodes - 1); + payload_size = TLV_SPACE(sizeof(node_info)) * + (tipc_net.highest_node - 1); if (payload_size > 32768u) { read_unlock_bh(&tipc_net_lock); return tipc_cfg_reply_error_string(TIPC_CFG_NOT_SUPPORTED @@ -650,8 +418,9 @@ struct sk_buff *tipc_node_get_nodes(const void *req_tlv_area, int req_tlv_space) /* Add TLVs for all nodes in scope */ - for (n_ptr = tipc_nodes; n_ptr; n_ptr = n_ptr->next) { - if (!tipc_in_scope(domain, n_ptr->addr)) + for (n_num = 1; n_num <= tipc_net.highest_node; n_num++) { + n_ptr = tipc_net.nodes[n_num]; + if (!n_ptr || !tipc_in_scope(domain, n_ptr->addr)) continue; node_info.addr = htonl(n_ptr->addr); node_info.up = htonl(tipc_node_is_up(n_ptr)); @@ -670,6 +439,7 @@ struct sk_buff *tipc_node_get_links(const void *req_tlv_area, int req_tlv_space) struct tipc_node *n_ptr; struct tipc_link_info link_info; u32 payload_size; + u32 n_num; if (!TLV_CHECK(req_tlv_area, req_tlv_space, TIPC_TLV_NET_ADDR)) return tipc_cfg_reply_error_string(TIPC_CFG_TLV_ERROR); @@ -686,8 +456,7 @@ struct sk_buff *tipc_node_get_links(const void *req_tlv_area, int req_tlv_space) /* Get space for all unicast links + multicast link */ - payload_size = TLV_SPACE(sizeof(link_info)) * - (tipc_net.zones[tipc_zone(tipc_own_addr)]->links + 1); + payload_size = TLV_SPACE(sizeof(link_info)) * (tipc_net.links + 1); if (payload_size > 32768u) { read_unlock_bh(&tipc_net_lock); return tipc_cfg_reply_error_string(TIPC_CFG_NOT_SUPPORTED @@ -708,10 +477,11 @@ struct sk_buff *tipc_node_get_links(const void *req_tlv_area, int req_tlv_space) /* Add TLVs for any other links in scope */ - for (n_ptr = tipc_nodes; n_ptr; n_ptr = n_ptr->next) { + for (n_num = 1; n_num <= tipc_net.highest_node; n_num++) { u32 i; - if (!tipc_in_scope(domain, n_ptr->addr)) + n_ptr = tipc_net.nodes[n_num]; + if (!n_ptr || !tipc_in_scope(domain, n_ptr->addr)) continue; tipc_node_lock(n_ptr); for (i = 0; i < MAX_BEARERS; i++) { diff --git a/net/tipc/node.h b/net/tipc/node.h index 6f990da5d143..206a8efa410e 100644 --- a/net/tipc/node.h +++ b/net/tipc/node.h @@ -39,23 +39,21 @@ #include "node_subscr.h" #include "addr.h" -#include "cluster.h" +#include "net.h" #include "bearer.h" /** * struct tipc_node - TIPC node structure * @addr: network address of node * @lock: spinlock governing access to structure - * @owner: pointer to cluster that node belongs to * @next: pointer to next node in sorted list of cluster's nodes * @nsub: list of "node down" subscriptions monitoring node * @active_links: pointers to active links to node * @links: pointers to all links to node * @working_links: number of working links to node (both active and standby) + * @cleanup_required: non-zero if cleaning up after a prior loss of contact * @link_cnt: number of links to node * @permit_changeover: non-zero if node has redundant links to this system - * @routers: bitmap (used for multicluster communication) - * @last_router: (used for multicluster communication) * @bclink: broadcast-related info * @supported: non-zero if node supports TIPC b'cast capability * @acked: sequence # of last outbound b'cast message acknowledged by node @@ -71,16 +69,14 @@ struct tipc_node { u32 addr; spinlock_t lock; - struct cluster *owner; struct tipc_node *next; struct list_head nsub; struct link *active_links[2]; struct link *links[MAX_BEARERS]; int link_cnt; int working_links; + int cleanup_required; int permit_changeover; - u32 routers[512/32]; - int last_router; struct { int supported; u32 acked; @@ -94,7 +90,6 @@ struct tipc_node { } bclink; }; -extern struct tipc_node *tipc_nodes; extern u32 tipc_own_tag; struct tipc_node *tipc_node_create(u32 addr); @@ -105,34 +100,17 @@ void tipc_node_link_down(struct tipc_node *n_ptr, struct link *l_ptr); void tipc_node_link_up(struct tipc_node *n_ptr, struct link *l_ptr); int tipc_node_has_active_links(struct tipc_node *n_ptr); int tipc_node_has_redundant_links(struct tipc_node *n_ptr); -u32 tipc_node_select_router(struct tipc_node *n_ptr, u32 ref); -struct tipc_node *tipc_node_select_next_hop(u32 addr, u32 selector); int tipc_node_is_up(struct tipc_node *n_ptr); -void tipc_node_add_router(struct tipc_node *n_ptr, u32 router); -void tipc_node_remove_router(struct tipc_node *n_ptr, u32 router); struct sk_buff *tipc_node_get_links(const void *req_tlv_area, int req_tlv_space); struct sk_buff *tipc_node_get_nodes(const void *req_tlv_area, int req_tlv_space); static inline struct tipc_node *tipc_node_find(u32 addr) { if (likely(in_own_cluster(addr))) - return tipc_local_nodes[tipc_node(addr)]; - else if (tipc_addr_domain_valid(addr)) { - struct cluster *c_ptr = tipc_cltr_find(addr); - - if (c_ptr) - return c_ptr->nodes[tipc_node(addr)]; - } + return tipc_net.nodes[tipc_node(addr)]; return NULL; } -static inline struct tipc_node *tipc_node_select(u32 addr, u32 selector) -{ - if (likely(in_own_cluster(addr))) - return tipc_local_nodes[tipc_node(addr)]; - return tipc_node_select_next_hop(addr, selector); -} - static inline void tipc_node_lock(struct tipc_node *n_ptr) { spin_lock_bh(&n_ptr->lock); diff --git a/net/tipc/node_subscr.c b/net/tipc/node_subscr.c index 19194d476a9e..018a55332d91 100644 --- a/net/tipc/node_subscr.c +++ b/net/tipc/node_subscr.c @@ -35,10 +35,8 @@ */ #include "core.h" -#include "dbg.h" #include "node_subscr.h" #include "node.h" -#include "addr.h" /** * tipc_nodesub_subscribe - create "node down" subscription for specified node diff --git a/net/tipc/port.c b/net/tipc/port.c index 0737680e9266..067bab2a0b98 100644 --- a/net/tipc/port.c +++ b/net/tipc/port.c @@ -36,15 +36,8 @@ #include "core.h" #include "config.h" -#include "dbg.h" #include "port.h" -#include "addr.h" -#include "link.h" -#include "node.h" #include "name_table.h" -#include "user_reg.h" -#include "msg.h" -#include "bcast.h" /* Connection management: */ #define PROBING_INTERVAL 3600000 /* [ms] => 1 h */ @@ -53,16 +46,16 @@ #define MAX_REJECT_SIZE 1024 -static struct sk_buff *msg_queue_head = NULL; -static struct sk_buff *msg_queue_tail = NULL; +static struct sk_buff *msg_queue_head; +static struct sk_buff *msg_queue_tail; DEFINE_SPINLOCK(tipc_port_list_lock); static DEFINE_SPINLOCK(queue_lock); static LIST_HEAD(ports); static void port_handle_node_down(unsigned long ref); -static struct sk_buff* port_build_self_abort_msg(struct port *,u32 err); -static struct sk_buff* port_build_peer_abort_msg(struct port *,u32 err); +static struct sk_buff *port_build_self_abort_msg(struct port *, u32 err); +static struct sk_buff *port_build_peer_abort_msg(struct port *, u32 err); static void port_timeout(unsigned long ref); @@ -94,7 +87,7 @@ static void port_incr_out_seqno(struct port *p_ptr) * tipc_multicast - send a multicast message to local and remote destinations */ -int tipc_multicast(u32 ref, struct tipc_name_seq const *seq, u32 domain, +int tipc_multicast(u32 ref, struct tipc_name_seq const *seq, u32 num_sect, struct iovec const *msg_sect) { struct tipc_msg *hdr; @@ -138,9 +131,8 @@ int tipc_multicast(u32 ref, struct tipc_name_seq const *seq, u32 domain, } } res = tipc_bclink_send_msg(buf); - if ((res < 0) && (dports.count != 0)) { + if ((res < 0) && (dports.count != 0)) buf_discard(ibuf); - } } else { ibuf = buf; } @@ -162,7 +154,7 @@ int tipc_multicast(u32 ref, struct tipc_name_seq const *seq, u32 domain, void tipc_port_recv_mcast(struct sk_buff *buf, struct port_list *dp) { - struct tipc_msg* msg; + struct tipc_msg *msg; struct port_list dports = {0, NULL, }; struct port_list *item = dp; int cnt = 0; @@ -195,13 +187,11 @@ void tipc_port_recv_mcast(struct sk_buff *buf, struct port_list *dp) if (b == NULL) { warn("Unable to deliver multicast message(s)\n"); - msg_dbg(msg, "LOST:"); goto exit; } - if ((index == 0) && (cnt != 0)) { + if ((index == 0) && (cnt != 0)) item = item->next; - } - msg_set_destport(buf_msg(b),item->ports[index]); + msg_set_destport(buf_msg(b), item->ports[index]); tipc_port_recv_msg(b); } } @@ -277,10 +267,7 @@ int tipc_deleteport(u32 ref) buf = port_build_peer_abort_msg(p_ptr, TIPC_ERR_NO_PORT); tipc_nodesub_unsubscribe(&p_ptr->subscription); } - if (p_ptr->user_port) { - tipc_reg_remove_port(p_ptr->user_port); - kfree(p_ptr->user_port); - } + kfree(p_ptr->user_port); spin_lock_bh(&tipc_port_list_lock); list_del(&p_ptr->port_list); @@ -288,39 +275,10 @@ int tipc_deleteport(u32 ref) spin_unlock_bh(&tipc_port_list_lock); k_term_timer(&p_ptr->timer); kfree(p_ptr); - dbg("Deleted port %u\n", ref); tipc_net_route_msg(buf); return 0; } -/** - * tipc_get_port() - return port associated with 'ref' - * - * Note: Port is not locked. - */ - -struct tipc_port *tipc_get_port(const u32 ref) -{ - return (struct tipc_port *)tipc_ref_deref(ref); -} - -/** - * tipc_get_handle - return user handle associated to port 'ref' - */ - -void *tipc_get_handle(const u32 ref) -{ - struct port *p_ptr; - void * handle; - - p_ptr = tipc_port_lock(ref); - if (!p_ptr) - return NULL; - handle = p_ptr->publ.usr_handle; - tipc_port_unlock(p_ptr); - return handle; -} - static int port_unreliable(struct port *p_ptr) { return msg_src_droppable(&p_ptr->publ.phdr); @@ -392,7 +350,7 @@ static struct sk_buff *port_build_proto_msg(u32 destport, u32 destnode, struct sk_buff *buf; struct tipc_msg *msg; - buf = buf_acquire(LONG_H_SIZE); + buf = tipc_buf_acquire(LONG_H_SIZE); if (buf) { msg = buf_msg(buf); tipc_msg_init(msg, usr, type, LONG_H_SIZE, destnode); @@ -402,7 +360,6 @@ static struct sk_buff *port_build_proto_msg(u32 destport, u32 destnode, msg_set_orignode(msg, orignode); msg_set_transp_seqno(msg, seqno); msg_set_msgcnt(msg, ack); - msg_dbg(msg, "PORT>SEND>:"); } return buf; } @@ -420,7 +377,6 @@ int tipc_reject_msg(struct sk_buff *buf, u32 err) data_sz = MAX_REJECT_SIZE; if (msg_connected(msg) && (imp < TIPC_CRITICAL_IMPORTANCE)) imp++; - msg_dbg(msg, "port->rej: "); /* discard rejected message if it shouldn't be returned to sender */ if (msg_errcode(msg) || msg_dest_droppable(msg)) { @@ -433,7 +389,7 @@ int tipc_reject_msg(struct sk_buff *buf, u32 err) hdr_sz = MCAST_H_SIZE; else hdr_sz = LONG_H_SIZE; - rbuf = buf_acquire(data_sz + hdr_sz); + rbuf = tipc_buf_acquire(data_sz + hdr_sz); if (rbuf == NULL) { buf_discard(buf); return data_sz; @@ -526,7 +482,7 @@ static void port_timeout(unsigned long ref) static void port_handle_node_down(unsigned long ref) { struct port *p_ptr = tipc_port_lock(ref); - struct sk_buff* buf = NULL; + struct sk_buff *buf = NULL; if (!p_ptr) return; @@ -583,24 +539,13 @@ void tipc_port_recv_proto_msg(struct sk_buff *buf) struct sk_buff *r_buf = NULL; struct sk_buff *abort_buf = NULL; - msg_dbg(msg, "PORT<RECV<:"); - if (!p_ptr) { err = TIPC_ERR_NO_PORT; } else if (p_ptr->publ.connected) { - if (port_peernode(p_ptr) != msg_orignode(msg)) + if ((port_peernode(p_ptr) != msg_orignode(msg)) || + (port_peerport(p_ptr) != msg_origport(msg))) { err = TIPC_ERR_NO_PORT; - if (port_peerport(p_ptr) != msg_origport(msg)) - err = TIPC_ERR_NO_PORT; - if (!err && msg_routed(msg)) { - u32 seqno = msg_transp_seqno(msg); - u32 myno = ++p_ptr->last_in_seqno; - if (seqno != myno) { - err = TIPC_ERR_NO_PORT; - abort_buf = port_build_self_abort_msg(p_ptr, err); - } - } - if (msg_type(msg) == CONN_ACK) { + } else if (msg_type(msg) == CONN_ACK) { int wakeup = tipc_port_congested(p_ptr) && p_ptr->publ.congested && p_ptr->wakeup; @@ -673,8 +618,7 @@ static void port_print(struct port *p_ptr, struct print_buf *buf, int full_id) tipc_printf(buf, " via {%u,%u}", p_ptr->publ.conn_type, p_ptr->publ.conn_instance); - } - else if (p_ptr->publ.published) { + } else if (p_ptr->publ.published) { tipc_printf(buf, " bound to"); list_for_each_entry(publ, &p_ptr->publications, pport_list) { if (publ->lower == publ->upper) @@ -719,50 +663,6 @@ struct sk_buff *tipc_port_get_ports(void) return buf; } -#if 0 - -#define MAX_PORT_STATS 2000 - -struct sk_buff *port_show_stats(const void *req_tlv_area, int req_tlv_space) -{ - u32 ref; - struct port *p_ptr; - struct sk_buff *buf; - struct tlv_desc *rep_tlv; - struct print_buf pb; - int str_len; - - if (!TLV_CHECK(req_tlv_area, req_tlv_space, TIPC_TLV_PORT_REF)) - return cfg_reply_error_string(TIPC_CFG_TLV_ERROR); - - ref = *(u32 *)TLV_DATA(req_tlv_area); - ref = ntohl(ref); - - p_ptr = tipc_port_lock(ref); - if (!p_ptr) - return cfg_reply_error_string("port not found"); - - buf = tipc_cfg_reply_alloc(TLV_SPACE(MAX_PORT_STATS)); - if (!buf) { - tipc_port_unlock(p_ptr); - return NULL; - } - rep_tlv = (struct tlv_desc *)buf->data; - - tipc_printbuf_init(&pb, TLV_DATA(rep_tlv), MAX_PORT_STATS); - port_print(p_ptr, &pb, 1); - /* NEED TO FILL IN ADDITIONAL PORT STATISTICS HERE */ - tipc_port_unlock(p_ptr); - str_len = tipc_printbuf_validate(&pb); - - skb_put(buf, TLV_SPACE(str_len)); - TLV_SET(rep_tlv, TIPC_TLV_ULTRA_STRING, NULL, str_len); - - return buf; -} - -#endif - void tipc_port_reinit(void) { struct port *p_ptr; @@ -1021,12 +921,10 @@ void tipc_acknowledge(u32 ref, u32 ack) } /* - * tipc_createport(): user level call. Will add port to - * registry if non-zero user_ref. + * tipc_createport(): user level call. */ -int tipc_createport(u32 user_ref, - void *usr_handle, +int tipc_createport(void *usr_handle, unsigned int importance, tipc_msg_err_event error_cb, tipc_named_msg_err_event named_error_cb, @@ -1053,7 +951,6 @@ int tipc_createport(u32 user_ref, } p_ptr->user_port = up_ptr; - up_ptr->user_ref = user_ref; up_ptr->usr_handle = usr_handle; up_ptr->ref = p_ptr->publ.ref; up_ptr->err_cb = error_cb; @@ -1063,20 +960,11 @@ int tipc_createport(u32 user_ref, up_ptr->named_msg_cb = named_msg_cb; up_ptr->conn_msg_cb = conn_msg_cb; up_ptr->continue_event_cb = continue_event_cb; - INIT_LIST_HEAD(&up_ptr->uport_list); - tipc_reg_add_port(up_ptr); *portref = p_ptr->publ.ref; tipc_port_unlock(p_ptr); return 0; } -int tipc_ownidentity(u32 ref, struct tipc_portid *id) -{ - id->ref = ref; - id->node = tipc_own_addr; - return 0; -} - int tipc_portimportance(u32 ref, unsigned int *importance) { struct port *p_ptr; @@ -1116,9 +1004,6 @@ int tipc_publish(u32 ref, unsigned int scope, struct tipc_name_seq const *seq) if (!p_ptr) return -EINVAL; - dbg("tipc_publ %u, p_ptr = %x, conn = %x, scope = %x, " - "lower = %u, upper = %u\n", - ref, p_ptr, p_ptr->publ.connected, scope, seq->lower, seq->upper); if (p_ptr->publ.connected) goto exit; if (seq->lower > seq->upper) @@ -1204,17 +1089,14 @@ int tipc_connect2port(u32 ref, struct tipc_portid const *peer) msg_set_origport(msg, p_ptr->publ.ref); msg_set_transp_seqno(msg, 42); msg_set_type(msg, TIPC_CONN_MSG); - if (!may_route(peer->node)) - msg_set_hdr_sz(msg, SHORT_H_SIZE); - else - msg_set_hdr_sz(msg, LONG_H_SIZE); + msg_set_hdr_sz(msg, SHORT_H_SIZE); p_ptr->probing_interval = PROBING_INTERVAL; p_ptr->probing_state = CONFIRMED; p_ptr->publ.connected = 1; k_start_timer(&p_ptr->timer, p_ptr->probing_interval); - tipc_nodesub_subscribe(&p_ptr->subscription,peer->node, + tipc_nodesub_subscribe(&p_ptr->subscription, peer->node, (void *)(unsigned long)ref, (net_ev_handler)port_handle_node_down); res = 0; @@ -1295,50 +1177,13 @@ int tipc_shutdown(u32 ref) return tipc_disconnect(ref); } -int tipc_isconnected(u32 ref, int *isconnected) -{ - struct port *p_ptr; - - p_ptr = tipc_port_lock(ref); - if (!p_ptr) - return -EINVAL; - *isconnected = p_ptr->publ.connected; - tipc_port_unlock(p_ptr); - return 0; -} - -int tipc_peer(u32 ref, struct tipc_portid *peer) -{ - struct port *p_ptr; - int res; - - p_ptr = tipc_port_lock(ref); - if (!p_ptr) - return -EINVAL; - if (p_ptr->publ.connected) { - peer->ref = port_peerport(p_ptr); - peer->node = port_peernode(p_ptr); - res = 0; - } else - res = -ENOTCONN; - tipc_port_unlock(p_ptr); - return res; -} - -int tipc_ref_valid(u32 ref) -{ - /* Works irrespective of type */ - return !!tipc_ref_deref(ref); -} - - /* * tipc_port_recv_sections(): Concatenate and deliver sectioned * message for this node. */ -int tipc_port_recv_sections(struct port *sender, unsigned int num_sect, - struct iovec const *msg_sect) +static int tipc_port_recv_sections(struct port *sender, unsigned int num_sect, + struct iovec const *msg_sect) { struct sk_buff *buf; int res; @@ -1389,65 +1234,11 @@ int tipc_send(u32 ref, unsigned int num_sect, struct iovec const *msg_sect) } /** - * tipc_send_buf - send message buffer on connection - */ - -int tipc_send_buf(u32 ref, struct sk_buff *buf, unsigned int dsz) -{ - struct port *p_ptr; - struct tipc_msg *msg; - u32 destnode; - u32 hsz; - u32 sz; - u32 res; - - p_ptr = tipc_port_deref(ref); - if (!p_ptr || !p_ptr->publ.connected) - return -EINVAL; - - msg = &p_ptr->publ.phdr; - hsz = msg_hdr_sz(msg); - sz = hsz + dsz; - msg_set_size(msg, sz); - if (skb_cow(buf, hsz)) - return -ENOMEM; - - skb_push(buf, hsz); - skb_copy_to_linear_data(buf, msg, hsz); - destnode = msg_destnode(msg); - p_ptr->publ.congested = 1; - if (!tipc_port_congested(p_ptr)) { - if (likely(destnode != tipc_own_addr)) - res = tipc_send_buf_fast(buf, destnode); - else { - tipc_port_recv_msg(buf); - res = sz; - } - if (likely(res != -ELINKCONG)) { - port_incr_out_seqno(p_ptr); - p_ptr->sent++; - p_ptr->publ.congested = 0; - return res; - } - } - if (port_unreliable(p_ptr)) { - p_ptr->publ.congested = 0; - return dsz; - } - return -ELINKCONG; -} - -/** - * tipc_forward2name - forward message sections to port name + * tipc_send2name - send message sections to port name */ -int tipc_forward2name(u32 ref, - struct tipc_name const *name, - u32 domain, - u32 num_sect, - struct iovec const *msg_sect, - struct tipc_portid const *orig, - unsigned int importance) +int tipc_send2name(u32 ref, struct tipc_name const *name, unsigned int domain, + unsigned int num_sect, struct iovec const *msg_sect) { struct port *p_ptr; struct tipc_msg *msg; @@ -1461,19 +1252,17 @@ int tipc_forward2name(u32 ref, msg = &p_ptr->publ.phdr; msg_set_type(msg, TIPC_NAMED_MSG); - msg_set_orignode(msg, orig->node); - msg_set_origport(msg, orig->ref); + msg_set_orignode(msg, tipc_own_addr); + msg_set_origport(msg, ref); msg_set_hdr_sz(msg, LONG_H_SIZE); msg_set_nametype(msg, name->type); msg_set_nameinst(msg, name->instance); msg_set_lookup_scope(msg, tipc_addr_scope(domain)); - if (importance <= TIPC_CRITICAL_IMPORTANCE) - msg_set_importance(msg,importance); destport = tipc_nametbl_translate(name->type, name->instance, &destnode); msg_set_destnode(msg, destnode); msg_set_destport(msg, destport); - if (likely(destport || destnode)) { + if (likely(destport)) { p_ptr->sent++; if (likely(destnode == tipc_own_addr)) return tipc_port_recv_sections(p_ptr, num_sect, msg_sect); @@ -1492,107 +1281,11 @@ int tipc_forward2name(u32 ref, } /** - * tipc_send2name - send message sections to port name - */ - -int tipc_send2name(u32 ref, - struct tipc_name const *name, - unsigned int domain, - unsigned int num_sect, - struct iovec const *msg_sect) -{ - struct tipc_portid orig; - - orig.ref = ref; - orig.node = tipc_own_addr; - return tipc_forward2name(ref, name, domain, num_sect, msg_sect, &orig, - TIPC_PORT_IMPORTANCE); -} - -/** - * tipc_forward_buf2name - forward message buffer to port name - */ - -int tipc_forward_buf2name(u32 ref, - struct tipc_name const *name, - u32 domain, - struct sk_buff *buf, - unsigned int dsz, - struct tipc_portid const *orig, - unsigned int importance) -{ - struct port *p_ptr; - struct tipc_msg *msg; - u32 destnode = domain; - u32 destport; - int res; - - p_ptr = (struct port *)tipc_ref_deref(ref); - if (!p_ptr || p_ptr->publ.connected) - return -EINVAL; - - msg = &p_ptr->publ.phdr; - if (importance <= TIPC_CRITICAL_IMPORTANCE) - msg_set_importance(msg, importance); - msg_set_type(msg, TIPC_NAMED_MSG); - msg_set_orignode(msg, orig->node); - msg_set_origport(msg, orig->ref); - msg_set_nametype(msg, name->type); - msg_set_nameinst(msg, name->instance); - msg_set_lookup_scope(msg, tipc_addr_scope(domain)); - msg_set_hdr_sz(msg, LONG_H_SIZE); - msg_set_size(msg, LONG_H_SIZE + dsz); - destport = tipc_nametbl_translate(name->type, name->instance, &destnode); - msg_set_destnode(msg, destnode); - msg_set_destport(msg, destport); - msg_dbg(msg, "forw2name ==> "); - if (skb_cow(buf, LONG_H_SIZE)) - return -ENOMEM; - skb_push(buf, LONG_H_SIZE); - skb_copy_to_linear_data(buf, msg, LONG_H_SIZE); - msg_dbg(buf_msg(buf),"PREP:"); - if (likely(destport || destnode)) { - p_ptr->sent++; - if (destnode == tipc_own_addr) - return tipc_port_recv_msg(buf); - res = tipc_send_buf_fast(buf, destnode); - if (likely(res != -ELINKCONG)) - return res; - if (port_unreliable(p_ptr)) - return dsz; - return -ELINKCONG; - } - return tipc_reject_msg(buf, TIPC_ERR_NO_NAME); -} - -/** - * tipc_send_buf2name - send message buffer to port name - */ - -int tipc_send_buf2name(u32 ref, - struct tipc_name const *dest, - u32 domain, - struct sk_buff *buf, - unsigned int dsz) -{ - struct tipc_portid orig; - - orig.ref = ref; - orig.node = tipc_own_addr; - return tipc_forward_buf2name(ref, dest, domain, buf, dsz, &orig, - TIPC_PORT_IMPORTANCE); -} - -/** - * tipc_forward2port - forward message sections to port identity + * tipc_send2port - send message sections to port identity */ -int tipc_forward2port(u32 ref, - struct tipc_portid const *dest, - unsigned int num_sect, - struct iovec const *msg_sect, - struct tipc_portid const *orig, - unsigned int importance) +int tipc_send2port(u32 ref, struct tipc_portid const *dest, + unsigned int num_sect, struct iovec const *msg_sect) { struct port *p_ptr; struct tipc_msg *msg; @@ -1604,13 +1297,11 @@ int tipc_forward2port(u32 ref, msg = &p_ptr->publ.phdr; msg_set_type(msg, TIPC_DIRECT_MSG); - msg_set_orignode(msg, orig->node); - msg_set_origport(msg, orig->ref); + msg_set_orignode(msg, tipc_own_addr); + msg_set_origport(msg, ref); msg_set_destnode(msg, dest->node); msg_set_destport(msg, dest->ref); msg_set_hdr_sz(msg, DIR_MSG_H_SIZE); - if (importance <= TIPC_CRITICAL_IMPORTANCE) - msg_set_importance(msg, importance); p_ptr->sent++; if (dest->node == tipc_own_addr) return tipc_port_recv_sections(p_ptr, num_sect, msg_sect); @@ -1625,31 +1316,11 @@ int tipc_forward2port(u32 ref, } /** - * tipc_send2port - send message sections to port identity + * tipc_send_buf2port - send message buffer to port identity */ -int tipc_send2port(u32 ref, - struct tipc_portid const *dest, - unsigned int num_sect, - struct iovec const *msg_sect) -{ - struct tipc_portid orig; - - orig.ref = ref; - orig.node = tipc_own_addr; - return tipc_forward2port(ref, dest, num_sect, msg_sect, &orig, - TIPC_PORT_IMPORTANCE); -} - -/** - * tipc_forward_buf2port - forward message buffer to port identity - */ -int tipc_forward_buf2port(u32 ref, - struct tipc_portid const *dest, - struct sk_buff *buf, - unsigned int dsz, - struct tipc_portid const *orig, - unsigned int importance) +int tipc_send_buf2port(u32 ref, struct tipc_portid const *dest, + struct sk_buff *buf, unsigned int dsz) { struct port *p_ptr; struct tipc_msg *msg; @@ -1661,20 +1332,17 @@ int tipc_forward_buf2port(u32 ref, msg = &p_ptr->publ.phdr; msg_set_type(msg, TIPC_DIRECT_MSG); - msg_set_orignode(msg, orig->node); - msg_set_origport(msg, orig->ref); + msg_set_orignode(msg, tipc_own_addr); + msg_set_origport(msg, ref); msg_set_destnode(msg, dest->node); msg_set_destport(msg, dest->ref); msg_set_hdr_sz(msg, DIR_MSG_H_SIZE); - if (importance <= TIPC_CRITICAL_IMPORTANCE) - msg_set_importance(msg, importance); msg_set_size(msg, DIR_MSG_H_SIZE + dsz); if (skb_cow(buf, DIR_MSG_H_SIZE)) return -ENOMEM; skb_push(buf, DIR_MSG_H_SIZE); skb_copy_to_linear_data(buf, msg, DIR_MSG_H_SIZE); - msg_dbg(msg, "buf2port: "); p_ptr->sent++; if (dest->node == tipc_own_addr) return tipc_port_recv_msg(buf); @@ -1686,20 +1354,3 @@ int tipc_forward_buf2port(u32 ref, return -ELINKCONG; } -/** - * tipc_send_buf2port - send message buffer to port identity - */ - -int tipc_send_buf2port(u32 ref, - struct tipc_portid const *dest, - struct sk_buff *buf, - unsigned int dsz) -{ - struct tipc_portid orig; - - orig.ref = ref; - orig.node = tipc_own_addr; - return tipc_forward_buf2port(ref, dest, buf, dsz, &orig, - TIPC_PORT_IMPORTANCE); -} - diff --git a/net/tipc/port.h b/net/tipc/port.h index 8d1652aab298..8e84b989949c 100644 --- a/net/tipc/port.h +++ b/net/tipc/port.h @@ -37,24 +37,52 @@ #ifndef _TIPC_PORT_H #define _TIPC_PORT_H -#include "core.h" #include "ref.h" #include "net.h" #include "msg.h" -#include "dbg.h" #include "node_subscr.h" +#define TIPC_FLOW_CONTROL_WIN 512 + +typedef void (*tipc_msg_err_event) (void *usr_handle, u32 portref, + struct sk_buff **buf, unsigned char const *data, + unsigned int size, int reason, + struct tipc_portid const *attmpt_destid); + +typedef void (*tipc_named_msg_err_event) (void *usr_handle, u32 portref, + struct sk_buff **buf, unsigned char const *data, + unsigned int size, int reason, + struct tipc_name_seq const *attmpt_dest); + +typedef void (*tipc_conn_shutdown_event) (void *usr_handle, u32 portref, + struct sk_buff **buf, unsigned char const *data, + unsigned int size, int reason); + +typedef void (*tipc_msg_event) (void *usr_handle, u32 portref, + struct sk_buff **buf, unsigned char const *data, + unsigned int size, unsigned int importance, + struct tipc_portid const *origin); + +typedef void (*tipc_named_msg_event) (void *usr_handle, u32 portref, + struct sk_buff **buf, unsigned char const *data, + unsigned int size, unsigned int importance, + struct tipc_portid const *orig, + struct tipc_name_seq const *dest); + +typedef void (*tipc_conn_msg_event) (void *usr_handle, u32 portref, + struct sk_buff **buf, unsigned char const *data, + unsigned int size); + +typedef void (*tipc_continue_event) (void *usr_handle, u32 portref); + /** * struct user_port - TIPC user port (used with native API) - * @user_ref: id of user who created user port * @usr_handle: user-specified field * @ref: object reference to associated TIPC port * <various callback routines> - * @uport_list: adjacent user ports in list of ports held by user */ struct user_port { - u32 user_ref; void *usr_handle; u32 ref; tipc_msg_err_event err_cb; @@ -64,7 +92,34 @@ struct user_port { tipc_named_msg_event named_msg_cb; tipc_conn_msg_event conn_msg_cb; tipc_continue_event continue_event_cb; - struct list_head uport_list; +}; + +/** + * struct tipc_port - TIPC port info available to socket API + * @usr_handle: pointer to additional user-defined information about port + * @lock: pointer to spinlock for controlling access to port + * @connected: non-zero if port is currently connected to a peer port + * @conn_type: TIPC type used when connection was established + * @conn_instance: TIPC instance used when connection was established + * @conn_unacked: number of unacknowledged messages received from peer port + * @published: non-zero if port has one or more associated names + * @congested: non-zero if cannot send because of link or port congestion + * @max_pkt: maximum packet size "hint" used when building messages sent by port + * @ref: unique reference to port in TIPC object registry + * @phdr: preformatted message header used when sending messages + */ +struct tipc_port { + void *usr_handle; + spinlock_t *lock; + int connected; + u32 conn_type; + u32 conn_instance; + u32 conn_unacked; + int published; + u32 congested; + u32 max_pkt; + u32 ref; + struct tipc_msg phdr; }; /** @@ -109,13 +164,76 @@ struct port { extern spinlock_t tipc_port_list_lock; struct port_list; -int tipc_port_recv_sections(struct port *p_ptr, u32 num_sect, - struct iovec const *msg_sect); +/* + * TIPC port manipulation routines + */ +struct tipc_port *tipc_createport_raw(void *usr_handle, + u32 (*dispatcher)(struct tipc_port *, struct sk_buff *), + void (*wakeup)(struct tipc_port *), const u32 importance); + +int tipc_reject_msg(struct sk_buff *buf, u32 err); + +int tipc_send_buf_fast(struct sk_buff *buf, u32 destnode); + +void tipc_acknowledge(u32 port_ref, u32 ack); + +int tipc_createport(void *usr_handle, + unsigned int importance, tipc_msg_err_event error_cb, + tipc_named_msg_err_event named_error_cb, + tipc_conn_shutdown_event conn_error_cb, tipc_msg_event msg_cb, + tipc_named_msg_event named_msg_cb, + tipc_conn_msg_event conn_msg_cb, + tipc_continue_event continue_event_cb, u32 *portref); + +int tipc_deleteport(u32 portref); + +int tipc_portimportance(u32 portref, unsigned int *importance); +int tipc_set_portimportance(u32 portref, unsigned int importance); + +int tipc_portunreliable(u32 portref, unsigned int *isunreliable); +int tipc_set_portunreliable(u32 portref, unsigned int isunreliable); + +int tipc_portunreturnable(u32 portref, unsigned int *isunreturnable); +int tipc_set_portunreturnable(u32 portref, unsigned int isunreturnable); + +int tipc_publish(u32 portref, unsigned int scope, + struct tipc_name_seq const *name_seq); +int tipc_withdraw(u32 portref, unsigned int scope, + struct tipc_name_seq const *name_seq); + +int tipc_connect2port(u32 portref, struct tipc_portid const *port); + +int tipc_disconnect(u32 portref); + +int tipc_shutdown(u32 ref); + + +/* + * The following routines require that the port be locked on entry + */ +int tipc_disconnect_port(struct tipc_port *tp_ptr); + +/* + * TIPC messaging routines + */ +int tipc_send(u32 portref, unsigned int num_sect, struct iovec const *msg_sect); + +int tipc_send2name(u32 portref, struct tipc_name const *name, u32 domain, + unsigned int num_sect, struct iovec const *msg_sect); + +int tipc_send2port(u32 portref, struct tipc_portid const *dest, + unsigned int num_sect, struct iovec const *msg_sect); + +int tipc_send_buf2port(u32 portref, struct tipc_portid const *dest, + struct sk_buff *buf, unsigned int dsz); + +int tipc_multicast(u32 portref, struct tipc_name_seq const *seq, + unsigned int section_count, struct iovec const *msg); + int tipc_port_reject_sections(struct port *p_ptr, struct tipc_msg *hdr, struct iovec const *msg_sect, u32 num_sect, int err); struct sk_buff *tipc_port_get_ports(void); -struct sk_buff *port_show_stats(const void *req_tlv_area, int req_tlv_space); void tipc_port_recv_proto_msg(struct sk_buff *buf); void tipc_port_recv_mcast(struct sk_buff *buf, struct port_list *dp); void tipc_port_reinit(void); @@ -140,7 +258,7 @@ static inline void tipc_port_unlock(struct port *p_ptr) spin_unlock_bh(p_ptr->publ.lock); } -static inline struct port* tipc_port_deref(u32 ref) +static inline struct port *tipc_port_deref(u32 ref) { return (struct port *)tipc_ref_deref(ref); } @@ -157,7 +275,7 @@ static inline u32 tipc_peer_node(struct port *p_ptr) static inline int tipc_port_congested(struct port *p_ptr) { - return((p_ptr->sent - p_ptr->acked) >= (TIPC_FLOW_CONTROL_WIN * 2)); + return (p_ptr->sent - p_ptr->acked) >= (TIPC_FLOW_CONTROL_WIN * 2); } /** @@ -198,7 +316,6 @@ static inline int tipc_port_recv_msg(struct sk_buff *buf) err = TIPC_ERR_NO_PORT; } reject: - dbg("port->rejecting, err = %x..\n",err); return tipc_reject_msg(buf, err); } diff --git a/net/tipc/ref.c b/net/tipc/ref.c index 8dea66500cf5..83116892528b 100644 --- a/net/tipc/ref.c +++ b/net/tipc/ref.c @@ -89,7 +89,7 @@ struct ref_table { * have a reference value of 0 (although this is unlikely). */ -static struct ref_table tipc_ref_table = { NULL }; +static struct ref_table tipc_ref_table; static DEFINE_RWLOCK(ref_table_lock); @@ -178,14 +178,12 @@ u32 tipc_ref_acquire(void *object, spinlock_t **lock) next_plus_upper = entry->ref; tipc_ref_table.first_free = next_plus_upper & index_mask; ref = (next_plus_upper & ~index_mask) + index; - } - else if (tipc_ref_table.init_point < tipc_ref_table.capacity) { + } else if (tipc_ref_table.init_point < tipc_ref_table.capacity) { index = tipc_ref_table.init_point++; entry = &(tipc_ref_table.entries[index]); spin_lock_init(&entry->lock); ref = tipc_ref_table.start_mask + index; - } - else { + } else { ref = 0; } write_unlock_bh(&ref_table_lock); @@ -282,23 +280,6 @@ void *tipc_ref_lock(u32 ref) return NULL; } -/** - * tipc_ref_unlock - unlock referenced object - */ - -void tipc_ref_unlock(u32 ref) -{ - if (likely(tipc_ref_table.entries)) { - struct reference *entry; - - entry = &tipc_ref_table.entries[ref & - tipc_ref_table.index_mask]; - if (likely((entry->ref == ref) && (entry->object))) - spin_unlock_bh(&entry->lock); - else - err("Attempt to unlock non-existent reference\n"); - } -} /** * tipc_ref_deref - return pointer referenced object (without locking it) diff --git a/net/tipc/ref.h b/net/tipc/ref.h index 7e3798ea93b9..5bc8e7ab84de 100644 --- a/net/tipc/ref.h +++ b/net/tipc/ref.h @@ -44,7 +44,6 @@ u32 tipc_ref_acquire(void *object, spinlock_t **lock); void tipc_ref_discard(u32 ref); void *tipc_ref_lock(u32 ref); -void tipc_ref_unlock(u32 ref); void *tipc_ref_deref(u32 ref); #endif diff --git a/net/tipc/socket.c b/net/tipc/socket.c index 66e889ba48fd..2b02a3a80313 100644 --- a/net/tipc/socket.c +++ b/net/tipc/socket.c @@ -34,25 +34,13 @@ * POSSIBILITY OF SUCH DAMAGE. */ -#include <linux/module.h> -#include <linux/types.h> -#include <linux/net.h> -#include <linux/socket.h> -#include <linux/errno.h> -#include <linux/mm.h> -#include <linux/poll.h> -#include <linux/fcntl.h> -#include <linux/gfp.h> -#include <asm/string.h> -#include <asm/atomic.h> #include <net/sock.h> #include <linux/tipc.h> #include <linux/tipc_config.h> -#include <net/tipc/tipc_msg.h> -#include <net/tipc/tipc_port.h> #include "core.h" +#include "port.h" #define SS_LISTENING -1 /* socket is listening */ #define SS_READY -2 /* socket is connectionless */ @@ -64,6 +52,7 @@ struct tipc_sock { struct sock sk; struct tipc_port *p; struct tipc_portid peer_name; + long conn_timeout; }; #define tipc_sk(sk) ((struct tipc_sock *)(sk)) @@ -79,7 +68,7 @@ static const struct proto_ops msg_ops; static struct proto tipc_proto; -static int sockets_enabled = 0; +static int sockets_enabled; static atomic_t tipc_queue_size = ATOMIC_INIT(0); @@ -240,9 +229,9 @@ static int tipc_create(struct net *net, struct socket *sock, int protocol, sock->state = state; sock_init_data(sock, sk); - sk->sk_rcvtimeo = msecs_to_jiffies(CONN_TIMEOUT_DEFAULT); sk->sk_backlog_rcv = backlog_rcv; tipc_sk(sk)->p = tp_ptr; + tipc_sk(sk)->conn_timeout = msecs_to_jiffies(CONN_TIMEOUT_DEFAULT); spin_unlock_bh(tp_ptr->lock); @@ -386,7 +375,7 @@ static int bind(struct socket *sock, struct sockaddr *uaddr, int uaddr_len) * * NOTE: This routine doesn't need to take the socket lock since it only * accesses socket information that is unchanging (or which changes in - * a completely predictable manner). + * a completely predictable manner). */ static int get_name(struct socket *sock, struct sockaddr *uaddr, @@ -395,6 +384,7 @@ static int get_name(struct socket *sock, struct sockaddr *uaddr, struct sockaddr_tipc *addr = (struct sockaddr_tipc *)uaddr; struct tipc_sock *tsock = tipc_sk(sock->sk); + memset(addr, 0, sizeof(*addr)); if (peer) { if ((sock->state != SS_CONNECTED) && ((peer != 2) || (sock->state != SS_DISCONNECTING))) @@ -402,7 +392,8 @@ static int get_name(struct socket *sock, struct sockaddr *uaddr, addr->addr.id.ref = tsock->peer_name.ref; addr->addr.id.node = tsock->peer_name.node; } else { - tipc_ownidentity(tsock->p->ref, &addr->addr.id); + addr->addr.id.ref = tsock->p->ref; + addr->addr.id.node = tipc_own_addr; } *uaddr_len = sizeof(*addr); @@ -429,36 +420,55 @@ static int get_name(struct socket *sock, struct sockaddr *uaddr, * to handle any preventable race conditions, so TIPC will do the same ... * * TIPC sets the returned events as follows: - * a) POLLRDNORM and POLLIN are set if the socket's receive queue is non-empty - * or if a connection-oriented socket is does not have an active connection - * (i.e. a read operation will not block). - * b) POLLOUT is set except when a socket's connection has been terminated - * (i.e. a write operation will not block). - * c) POLLHUP is set when a socket's connection has been terminated. - * - * IMPORTANT: The fact that a read or write operation will not block does NOT - * imply that the operation will succeed! + * + * socket state flags set + * ------------ --------- + * unconnected no read flags + * no write flags + * + * connecting POLLIN/POLLRDNORM if ACK/NACK in rx queue + * no write flags + * + * connected POLLIN/POLLRDNORM if data in rx queue + * POLLOUT if port is not congested + * + * disconnecting POLLIN/POLLRDNORM/POLLHUP + * no write flags + * + * listening POLLIN if SYN in rx queue + * no write flags + * + * ready POLLIN/POLLRDNORM if data in rx queue + * [connectionless] POLLOUT (since port cannot be congested) + * + * IMPORTANT: The fact that a read or write operation is indicated does NOT + * imply that the operation will succeed, merely that it should be performed + * and will not block. */ static unsigned int poll(struct file *file, struct socket *sock, poll_table *wait) { struct sock *sk = sock->sk; - u32 mask; + u32 mask = 0; poll_wait(file, sk_sleep(sk), wait); - if (!skb_queue_empty(&sk->sk_receive_queue) || - (sock->state == SS_UNCONNECTED) || - (sock->state == SS_DISCONNECTING)) - mask = (POLLRDNORM | POLLIN); - else - mask = 0; - - if (sock->state == SS_DISCONNECTING) - mask |= POLLHUP; - else - mask |= POLLOUT; + switch ((int)sock->state) { + case SS_READY: + case SS_CONNECTED: + if (!tipc_sk_port(sk)->congested) + mask |= POLLOUT; + /* fall thru' */ + case SS_CONNECTING: + case SS_LISTENING: + if (!skb_queue_empty(&sk->sk_receive_queue)) + mask |= (POLLIN | POLLRDNORM); + break; + case SS_DISCONNECTING: + mask = (POLLIN | POLLRDNORM | POLLHUP); + break; + } return mask; } @@ -553,37 +563,35 @@ static int send_msg(struct kiocb *iocb, struct socket *sock, do { if (dest->addrtype == TIPC_ADDR_NAME) { - if ((res = dest_name_check(dest, m))) + res = dest_name_check(dest, m); + if (res) break; res = tipc_send2name(tport->ref, &dest->addr.name.name, dest->addr.name.domain, m->msg_iovlen, m->msg_iov); - } - else if (dest->addrtype == TIPC_ADDR_ID) { + } else if (dest->addrtype == TIPC_ADDR_ID) { res = tipc_send2port(tport->ref, &dest->addr.id, m->msg_iovlen, m->msg_iov); - } - else if (dest->addrtype == TIPC_ADDR_MCAST) { + } else if (dest->addrtype == TIPC_ADDR_MCAST) { if (needs_conn) { res = -EOPNOTSUPP; break; } - if ((res = dest_name_check(dest, m))) + res = dest_name_check(dest, m); + if (res) break; res = tipc_multicast(tport->ref, &dest->addr.nameseq, - 0, m->msg_iovlen, m->msg_iov); } if (likely(res != -ELINKCONG)) { - if (needs_conn && (res >= 0)) { + if (needs_conn && (res >= 0)) sock->state = SS_CONNECTING; - } break; } if (m->msg_flags & MSG_DONTWAIT) { @@ -642,9 +650,8 @@ static int send_packet(struct kiocb *iocb, struct socket *sock, } res = tipc_send(tport->ref, m->msg_iovlen, m->msg_iov); - if (likely(res != -ELINKCONG)) { + if (likely(res != -ELINKCONG)) break; - } if (m->msg_flags & MSG_DONTWAIT) { res = -EWOULDBLOCK; break; @@ -743,7 +750,8 @@ static int send_stream(struct kiocb *iocb, struct socket *sock, bytes_to_send = curr_left; my_iov.iov_base = curr_start; my_iov.iov_len = bytes_to_send; - if ((res = send_packet(NULL, sock, &my_msg, 0)) < 0) { + res = send_packet(NULL, sock, &my_msg, 0); + if (res < 0) { if (bytes_sent) res = bytes_sent; goto exit; @@ -803,8 +811,8 @@ static void set_orig_addr(struct msghdr *m, struct tipc_msg *msg) addr->addrtype = TIPC_ADDR_ID; addr->addr.id.ref = msg_origport(msg); addr->addr.id.node = msg_orignode(msg); - addr->addr.name.domain = 0; /* could leave uninitialized */ - addr->scope = 0; /* could leave uninitialized */ + addr->addr.name.domain = 0; /* could leave uninitialized */ + addr->scope = 0; /* could leave uninitialized */ m->msg_namelen = sizeof(struct sockaddr_tipc); } } @@ -838,12 +846,15 @@ static int anc_data_recv(struct msghdr *m, struct tipc_msg *msg, if (unlikely(err)) { anc_data[0] = err; anc_data[1] = msg_data_sz(msg); - if ((res = put_cmsg(m, SOL_TIPC, TIPC_ERRINFO, 8, anc_data))) - return res; - if (anc_data[1] && - (res = put_cmsg(m, SOL_TIPC, TIPC_RETDATA, anc_data[1], - msg_data(msg)))) + res = put_cmsg(m, SOL_TIPC, TIPC_ERRINFO, 8, anc_data); + if (res) return res; + if (anc_data[1]) { + res = put_cmsg(m, SOL_TIPC, TIPC_RETDATA, anc_data[1], + msg_data(msg)); + if (res) + return res; + } } /* Optionally capture message destination object */ @@ -871,9 +882,11 @@ static int anc_data_recv(struct msghdr *m, struct tipc_msg *msg, default: has_name = 0; } - if (has_name && - (res = put_cmsg(m, SOL_TIPC, TIPC_DESTNAME, 12, anc_data))) - return res; + if (has_name) { + res = put_cmsg(m, SOL_TIPC, TIPC_DESTNAME, 12, anc_data); + if (res) + return res; + } return 0; } @@ -1026,9 +1039,8 @@ static int recv_stream(struct kiocb *iocb, struct socket *sock, struct sk_buff *buf; struct tipc_msg *msg; unsigned int sz; - int sz_to_copy; + int sz_to_copy, target, needed; int sz_copied = 0; - int needed; char __user *crs = m->msg_iov->iov_base; unsigned char *buf_crs; u32 err; @@ -1050,6 +1062,8 @@ static int recv_stream(struct kiocb *iocb, struct socket *sock, goto exit; } + target = sock_rcvlowat(sk, flags & MSG_WAITALL, buf_len); + restart: /* Look for a message in receive queue; wait if necessary */ @@ -1138,7 +1152,7 @@ restart: if ((sz_copied < buf_len) && /* didn't get all requested data */ (!skb_queue_empty(&sk->sk_receive_queue) || - (flags & MSG_WAITALL)) && /* and more is ready or required */ + (sz_copied < target)) && /* and more is ready or required */ (!(flags & MSG_PEEK)) && /* and aren't just peeking at data */ (!err)) /* and haven't reached a FIN */ goto restart; @@ -1174,7 +1188,7 @@ static int rx_queue_full(struct tipc_msg *msg, u32 queue_size, u32 base) if (msg_connected(msg)) threshold *= 4; - return (queue_size >= threshold); + return queue_size >= threshold; } /** @@ -1205,42 +1219,25 @@ static u32 filter_rcv(struct sock *sk, struct sk_buff *buf) */ if (sock->state == SS_READY) { - if (msg_connected(msg)) { - msg_dbg(msg, "dispatch filter 1\n"); + if (msg_connected(msg)) return TIPC_ERR_NO_PORT; - } } else { - if (msg_mcast(msg)) { - msg_dbg(msg, "dispatch filter 2\n"); + if (msg_mcast(msg)) return TIPC_ERR_NO_PORT; - } if (sock->state == SS_CONNECTED) { - if (!msg_connected(msg)) { - msg_dbg(msg, "dispatch filter 3\n"); + if (!msg_connected(msg)) return TIPC_ERR_NO_PORT; - } - } - else if (sock->state == SS_CONNECTING) { - if (!msg_connected(msg) && (msg_errcode(msg) == 0)) { - msg_dbg(msg, "dispatch filter 4\n"); + } else if (sock->state == SS_CONNECTING) { + if (!msg_connected(msg) && (msg_errcode(msg) == 0)) return TIPC_ERR_NO_PORT; - } - } - else if (sock->state == SS_LISTENING) { - if (msg_connected(msg) || msg_errcode(msg)) { - msg_dbg(msg, "dispatch filter 5\n"); + } else if (sock->state == SS_LISTENING) { + if (msg_connected(msg) || msg_errcode(msg)) return TIPC_ERR_NO_PORT; - } - } - else if (sock->state == SS_DISCONNECTING) { - msg_dbg(msg, "dispatch filter 6\n"); + } else if (sock->state == SS_DISCONNECTING) { return TIPC_ERR_NO_PORT; - } - else /* (sock->state == SS_UNCONNECTED) */ { - if (msg_connected(msg) || msg_errcode(msg)) { - msg_dbg(msg, "dispatch filter 7\n"); + } else /* (sock->state == SS_UNCONNECTED) */ { + if (msg_connected(msg) || msg_errcode(msg)) return TIPC_ERR_NO_PORT; - } } } @@ -1259,7 +1256,6 @@ static u32 filter_rcv(struct sock *sk, struct sk_buff *buf) /* Enqueue message (finally!) */ - msg_dbg(msg, "<DISP<: "); TIPC_SKB_CB(buf)->handle = msg_data(msg); atomic_inc(&tipc_queue_size); __skb_queue_tail(&sk->sk_receive_queue, buf); @@ -1365,6 +1361,7 @@ static int connect(struct socket *sock, struct sockaddr *dest, int destlen, struct msghdr m = {NULL,}; struct sk_buff *buf; struct tipc_msg *msg; + long timeout; int res; lock_sock(sk); @@ -1379,7 +1376,7 @@ static int connect(struct socket *sock, struct sockaddr *dest, int destlen, /* For now, TIPC does not support the non-blocking form of connect() */ if (flags & O_NONBLOCK) { - res = -EWOULDBLOCK; + res = -EOPNOTSUPP; goto exit; } @@ -1419,17 +1416,17 @@ static int connect(struct socket *sock, struct sockaddr *dest, int destlen, m.msg_name = dest; m.msg_namelen = destlen; res = send_msg(NULL, sock, &m, 0); - if (res < 0) { + if (res < 0) goto exit; - } /* Wait until an 'ACK' or 'RST' arrives, or a timeout occurs */ + timeout = tipc_sk(sk)->conn_timeout; release_sock(sk); res = wait_event_interruptible_timeout(*sk_sleep(sk), (!skb_queue_empty(&sk->sk_receive_queue) || (sock->state != SS_CONNECTING)), - sk->sk_rcvtimeo); + timeout ? timeout : MAX_SCHEDULE_TIMEOUT); lock_sock(sk); if (res > 0) { @@ -1442,11 +1439,10 @@ static int connect(struct socket *sock, struct sockaddr *dest, int destlen, advance_rx_queue(sk); } } else { - if (sock->state == SS_CONNECTED) { + if (sock->state == SS_CONNECTED) res = -EISCONN; - } else { + else res = -ECONNREFUSED; - } } } else { if (res == 0) @@ -1565,7 +1561,6 @@ static int accept(struct socket *sock, struct socket *new_sock, int flags) * Respond to 'SYN+' by queuing it on new socket. */ - msg_dbg(msg,"<ACC<: "); if (!msg_data_sz(msg)) { struct msghdr m = {NULL,}; @@ -1673,7 +1668,8 @@ static int setsockopt(struct socket *sock, return -ENOPROTOOPT; if (ol < sizeof(value)) return -EINVAL; - if ((res = get_user(value, (u32 __user *)ov))) + res = get_user(value, (u32 __user *)ov); + if (res) return res; lock_sock(sk); @@ -1692,7 +1688,7 @@ static int setsockopt(struct socket *sock, res = tipc_set_portunreturnable(tport->ref, value); break; case TIPC_CONN_TIMEOUT: - sk->sk_rcvtimeo = msecs_to_jiffies(value); + tipc_sk(sk)->conn_timeout = msecs_to_jiffies(value); /* no need to set "res", since already 0 at this point */ break; default: @@ -1731,7 +1727,8 @@ static int getsockopt(struct socket *sock, return put_user(0, ol); if (lvl != SOL_TIPC) return -ENOPROTOOPT; - if ((res = get_user(len, ol))) + res = get_user(len, ol); + if (res) return res; lock_sock(sk); @@ -1747,13 +1744,13 @@ static int getsockopt(struct socket *sock, res = tipc_portunreturnable(tport->ref, &value); break; case TIPC_CONN_TIMEOUT: - value = jiffies_to_msecs(sk->sk_rcvtimeo); + value = jiffies_to_msecs(tipc_sk(sk)->conn_timeout); /* no need to set "res", since already 0 at this point */ break; - case TIPC_NODE_RECVQ_DEPTH: + case TIPC_NODE_RECVQ_DEPTH: value = (u32)atomic_read(&tipc_queue_size); break; - case TIPC_SOCK_RECVQ_DEPTH: + case TIPC_SOCK_RECVQ_DEPTH: value = skb_queue_len(&sk->sk_receive_queue); break; default: @@ -1762,20 +1759,16 @@ static int getsockopt(struct socket *sock, release_sock(sk); - if (res) { - /* "get" failed */ - } - else if (len < sizeof(value)) { - res = -EINVAL; - } - else if (copy_to_user(ov, &value, sizeof(value))) { - res = -EFAULT; - } - else { - res = put_user(sizeof(value), ol); - } + if (res) + return res; /* "get" failed */ - return res; + if (len < sizeof(value)) + return -EINVAL; + + if (copy_to_user(ov, &value, sizeof(value))) + return -EFAULT; + + return put_user(sizeof(value), ol); } /** @@ -1783,7 +1776,7 @@ static int getsockopt(struct socket *sock, */ static const struct proto_ops msg_ops = { - .owner = THIS_MODULE, + .owner = THIS_MODULE, .family = AF_TIPC, .release = release, .bind = bind, @@ -1804,7 +1797,7 @@ static const struct proto_ops msg_ops = { }; static const struct proto_ops packet_ops = { - .owner = THIS_MODULE, + .owner = THIS_MODULE, .family = AF_TIPC, .release = release, .bind = bind, @@ -1825,7 +1818,7 @@ static const struct proto_ops packet_ops = { }; static const struct proto_ops stream_ops = { - .owner = THIS_MODULE, + .owner = THIS_MODULE, .family = AF_TIPC, .release = release, .bind = bind, @@ -1846,7 +1839,7 @@ static const struct proto_ops stream_ops = { }; static const struct net_proto_family tipc_family_ops = { - .owner = THIS_MODULE, + .owner = THIS_MODULE, .family = AF_TIPC, .create = tipc_create }; diff --git a/net/tipc/subscr.c b/net/tipc/subscr.c index ab6eab4c45e2..ca04479c3d42 100644 --- a/net/tipc/subscr.c +++ b/net/tipc/subscr.c @@ -35,10 +35,8 @@ */ #include "core.h" -#include "dbg.h" #include "name_table.h" #include "port.h" -#include "ref.h" #include "subscr.h" /** @@ -66,14 +64,26 @@ struct subscriber { */ struct top_srv { - u32 user_ref; u32 setup_port; atomic_t subscription_count; struct list_head subscriber_list; spinlock_t lock; }; -static struct top_srv topsrv = { 0 }; +static struct top_srv topsrv; + +/** + * htohl - convert value to endianness used by destination + * @in: value to convert + * @swap: non-zero if endianness must be reversed + * + * Returns converted value + */ + +static u32 htohl(u32 in, int swap) +{ + return swap ? swab32(in) : in; +} /** * subscr_send_event - send a message containing a tipc_event to the subscriber @@ -94,11 +104,11 @@ static void subscr_send_event(struct subscription *sub, msg_sect.iov_base = (void *)&sub->evt; msg_sect.iov_len = sizeof(struct tipc_event); - sub->evt.event = htonl(event); - sub->evt.found_lower = htonl(found_lower); - sub->evt.found_upper = htonl(found_upper); - sub->evt.port.ref = htonl(port_ref); - sub->evt.port.node = htonl(node); + sub->evt.event = htohl(event, sub->swap); + sub->evt.found_lower = htohl(found_lower, sub->swap); + sub->evt.found_upper = htohl(found_upper, sub->swap); + sub->evt.port.ref = htohl(port_ref, sub->swap); + sub->evt.port.node = htohl(node, sub->swap); tipc_send(sub->server_ref, 1, &msg_sect); } @@ -239,8 +249,6 @@ static void subscr_terminate(struct subscriber *subscriber) k_cancel_timer(&sub->timer); k_term_timer(&sub->timer); } - dbg("Term: Removing sub %u,%u,%u from subscriber %x list\n", - sub->seq.type, sub->seq.lower, sub->seq.upper, subscriber); subscr_del(sub); } @@ -274,29 +282,16 @@ static void subscr_cancel(struct tipc_subscr *s, { struct subscription *sub; struct subscription *sub_temp; - __u32 type, lower, upper, timeout, filter; int found = 0; /* Find first matching subscription, exit if not found */ - type = ntohl(s->seq.type); - lower = ntohl(s->seq.lower); - upper = ntohl(s->seq.upper); - timeout = ntohl(s->timeout); - filter = ntohl(s->filter) & ~TIPC_SUB_CANCEL; - list_for_each_entry_safe(sub, sub_temp, &subscriber->subscription_list, subscription_list) { - if ((type == sub->seq.type) && - (lower == sub->seq.lower) && - (upper == sub->seq.upper) && - (timeout == sub->timeout) && - (filter == sub->filter) && - !memcmp(s->usr_handle,sub->evt.s.usr_handle, - sizeof(s->usr_handle)) ){ - found = 1; - break; - } + if (!memcmp(s, &sub->evt.s, sizeof(struct tipc_subscr))) { + found = 1; + break; + } } if (!found) return; @@ -310,8 +305,6 @@ static void subscr_cancel(struct tipc_subscr *s, k_term_timer(&sub->timer); spin_lock_bh(subscriber->lock); } - dbg("Cancel: removing sub %u,%u,%u from subscriber %p list\n", - sub->seq.type, sub->seq.lower, sub->seq.upper, subscriber); subscr_del(sub); } @@ -325,10 +318,16 @@ static struct subscription *subscr_subscribe(struct tipc_subscr *s, struct subscriber *subscriber) { struct subscription *sub; + int swap; + + /* Determine subscriber's endianness */ + + swap = !(s->filter & (TIPC_SUB_PORTS | TIPC_SUB_SERVICE)); /* Detect & process a subscription cancellation request */ - if (ntohl(s->filter) & TIPC_SUB_CANCEL) { + if (s->filter & htohl(TIPC_SUB_CANCEL, swap)) { + s->filter &= ~htohl(TIPC_SUB_CANCEL, swap); subscr_cancel(s, subscriber); return NULL; } @@ -353,12 +352,13 @@ static struct subscription *subscr_subscribe(struct tipc_subscr *s, /* Initialize subscription object */ - sub->seq.type = ntohl(s->seq.type); - sub->seq.lower = ntohl(s->seq.lower); - sub->seq.upper = ntohl(s->seq.upper); - sub->timeout = ntohl(s->timeout); - sub->filter = ntohl(s->filter); - if ((sub->filter && (sub->filter != TIPC_SUB_PORTS)) || + sub->seq.type = htohl(s->seq.type, swap); + sub->seq.lower = htohl(s->seq.lower, swap); + sub->seq.upper = htohl(s->seq.upper, swap); + sub->timeout = htohl(s->timeout, swap); + sub->filter = htohl(s->filter, swap); + if ((!(sub->filter & TIPC_SUB_PORTS) == + !(sub->filter & TIPC_SUB_SERVICE)) || (sub->seq.lower > sub->seq.upper)) { warn("Subscription rejected, illegal request\n"); kfree(sub); @@ -369,6 +369,7 @@ static struct subscription *subscr_subscribe(struct tipc_subscr *s, INIT_LIST_HEAD(&sub->nameseq_list); list_add(&sub->subscription_list, &subscriber->subscription_list); sub->server_ref = subscriber->port_ref; + sub->swap = swap; memcpy(&sub->evt.s, s, sizeof(struct tipc_subscr)); atomic_inc(&topsrv.subscription_count); if (sub->timeout != TIPC_WAIT_FOREVER) { @@ -488,8 +489,7 @@ static void subscr_named_msg_event(void *usr_handle, /* Create server port & establish connection to subscriber */ - tipc_createport(topsrv.user_ref, - subscriber, + tipc_createport(subscriber, importance, NULL, NULL, @@ -536,21 +536,14 @@ static void subscr_named_msg_event(void *usr_handle, int tipc_subscr_start(void) { struct tipc_name_seq seq = {TIPC_TOP_SRV, TIPC_TOP_SRV, TIPC_TOP_SRV}; - int res = -1; + int res; - memset(&topsrv, 0, sizeof (topsrv)); + memset(&topsrv, 0, sizeof(topsrv)); spin_lock_init(&topsrv.lock); INIT_LIST_HEAD(&topsrv.subscriber_list); spin_lock_bh(&topsrv.lock); - res = tipc_attach(&topsrv.user_ref, NULL, NULL); - if (res) { - spin_unlock_bh(&topsrv.lock); - return res; - } - - res = tipc_createport(topsrv.user_ref, - NULL, + res = tipc_createport(NULL, TIPC_CRITICAL_IMPORTANCE, NULL, NULL, @@ -564,16 +557,17 @@ int tipc_subscr_start(void) goto failed; res = tipc_nametbl_publish_rsv(topsrv.setup_port, TIPC_NODE_SCOPE, &seq); - if (res) + if (res) { + tipc_deleteport(topsrv.setup_port); + topsrv.setup_port = 0; goto failed; + } spin_unlock_bh(&topsrv.lock); return 0; failed: err("Failed to create subscription service\n"); - tipc_detach(topsrv.user_ref); - topsrv.user_ref = 0; spin_unlock_bh(&topsrv.lock); return res; } @@ -584,8 +578,10 @@ void tipc_subscr_stop(void) struct subscriber *subscriber_temp; spinlock_t *subscriber_lock; - if (topsrv.user_ref) { + if (topsrv.setup_port) { tipc_deleteport(topsrv.setup_port); + topsrv.setup_port = 0; + list_for_each_entry_safe(subscriber, subscriber_temp, &topsrv.subscriber_list, subscriber_list) { @@ -594,16 +590,5 @@ void tipc_subscr_stop(void) subscr_terminate(subscriber); spin_unlock_bh(subscriber_lock); } - tipc_detach(topsrv.user_ref); - topsrv.user_ref = 0; } } - - -int tipc_ispublished(struct tipc_name const *name) -{ - u32 domain = 0; - - return(tipc_nametbl_translate(name->type, name->instance,&domain) != 0); -} - diff --git a/net/tipc/subscr.h b/net/tipc/subscr.h index c20f496d95b2..45d89bf4d202 100644 --- a/net/tipc/subscr.h +++ b/net/tipc/subscr.h @@ -53,6 +53,7 @@ typedef void (*tipc_subscr_event) (struct subscription *sub, * @nameseq_list: adjacent subscriptions in name sequence's subscription list * @subscription_list: adjacent subscriptions in subscriber's subscription list * @server_ref: object reference of server port associated with subscription + * @swap: indicates if subscriber uses opposite endianness in its messages * @evt: template for events generated by subscription */ @@ -65,6 +66,7 @@ struct subscription { struct list_head nameseq_list; struct list_head subscription_list; u32 server_ref; + int swap; struct tipc_event evt; }; diff --git a/net/tipc/user_reg.c b/net/tipc/user_reg.c deleted file mode 100644 index 506928803162..000000000000 --- a/net/tipc/user_reg.c +++ /dev/null @@ -1,264 +0,0 @@ -/* - * net/tipc/user_reg.c: TIPC user registry code - * - * Copyright (c) 2000-2006, Ericsson AB - * Copyright (c) 2004-2005, Wind River Systems - * All rights reserved. - * - * Redistribution and use in source and binary forms, with or without - * modification, are permitted provided that the following conditions are met: - * - * 1. Redistributions of source code must retain the above copyright - * notice, this list of conditions and the following disclaimer. - * 2. Redistributions in binary form must reproduce the above copyright - * notice, this list of conditions and the following disclaimer in the - * documentation and/or other materials provided with the distribution. - * 3. Neither the names of the copyright holders nor the names of its - * contributors may be used to endorse or promote products derived from - * this software without specific prior written permission. - * - * Alternatively, this software may be distributed under the terms of the - * GNU General Public License ("GPL") version 2 as published by the Free - * Software Foundation. - * - * THIS SOFTWARE IS PROVIDED BY THE COPYRIGHT HOLDERS AND CONTRIBUTORS "AS IS" - * AND ANY EXPRESS OR IMPLIED WARRANTIES, INCLUDING, BUT NOT LIMITED TO, THE - * IMPLIED WARRANTIES OF MERCHANTABILITY AND FITNESS FOR A PARTICULAR PURPOSE - * ARE DISCLAIMED. IN NO EVENT SHALL THE COPYRIGHT OWNER OR CONTRIBUTORS BE - * LIABLE FOR ANY DIRECT, INDIRECT, INCIDENTAL, SPECIAL, EXEMPLARY, OR - * CONSEQUENTIAL DAMAGES (INCLUDING, BUT NOT LIMITED TO, PROCUREMENT OF - * SUBSTITUTE GOODS OR SERVICES; LOSS OF USE, DATA, OR PROFITS; OR BUSINESS - * INTERRUPTION) HOWEVER CAUSED AND ON ANY THEORY OF LIABILITY, WHETHER IN - * CONTRACT, STRICT LIABILITY, OR TORT (INCLUDING NEGLIGENCE OR OTHERWISE) - * ARISING IN ANY WAY OUT OF THE USE OF THIS SOFTWARE, EVEN IF ADVISED OF THE - * POSSIBILITY OF SUCH DAMAGE. - */ - -#include "core.h" -#include "user_reg.h" - -/* - * TIPC user registry keeps track of users of the tipc_port interface. - * - * The registry utilizes an array of "TIPC user" entries; - * a user's ID is the index of their associated array entry. - * Array entry 0 is not used, so userid 0 is not valid; - * TIPC sometimes uses this value to denote an anonymous user. - * The list of free entries is initially chained from last entry to entry 1. - */ - -/** - * struct tipc_user - registered TIPC user info - * @next: index of next free registry entry (or -1 for an allocated entry) - * @callback: ptr to routine to call when TIPC mode changes (NULL if none) - * @usr_handle: user-defined value passed to callback routine - * @ports: list of user ports owned by the user - */ - -struct tipc_user { - int next; - tipc_mode_event callback; - void *usr_handle; - struct list_head ports; -}; - -#define MAX_USERID 64 -#define USER_LIST_SIZE ((MAX_USERID + 1) * sizeof(struct tipc_user)) - -static struct tipc_user *users = NULL; -static u32 next_free_user = MAX_USERID + 1; -static DEFINE_SPINLOCK(reg_lock); - -/** - * reg_init - create TIPC user registry (but don't activate it) - * - * If registry has been pre-initialized it is left "as is". - * NOTE: This routine may be called when TIPC is inactive. - */ - -static int reg_init(void) -{ - u32 i; - - spin_lock_bh(®_lock); - if (!users) { - users = kzalloc(USER_LIST_SIZE, GFP_ATOMIC); - if (users) { - for (i = 1; i <= MAX_USERID; i++) { - users[i].next = i - 1; - } - next_free_user = MAX_USERID; - } - } - spin_unlock_bh(®_lock); - return users ? 0 : -ENOMEM; -} - -/** - * reg_callback - inform TIPC user about current operating mode - */ - -static void reg_callback(struct tipc_user *user_ptr) -{ - tipc_mode_event cb; - void *arg; - - spin_lock_bh(®_lock); - cb = user_ptr->callback; - arg = user_ptr->usr_handle; - spin_unlock_bh(®_lock); - - if (cb) - cb(arg, tipc_mode, tipc_own_addr); -} - -/** - * tipc_reg_start - activate TIPC user registry - */ - -int tipc_reg_start(void) -{ - u32 u; - int res; - - if ((res = reg_init())) - return res; - - for (u = 1; u <= MAX_USERID; u++) { - if (users[u].callback) - tipc_k_signal((Handler)reg_callback, - (unsigned long)&users[u]); - } - return 0; -} - -/** - * tipc_reg_stop - shut down & delete TIPC user registry - */ - -void tipc_reg_stop(void) -{ - int id; - - if (!users) - return; - - for (id = 1; id <= MAX_USERID; id++) { - if (users[id].callback) - reg_callback(&users[id]); - } - kfree(users); - users = NULL; -} - -/** - * tipc_attach - register a TIPC user - * - * NOTE: This routine may be called when TIPC is inactive. - */ - -int tipc_attach(u32 *userid, tipc_mode_event cb, void *usr_handle) -{ - struct tipc_user *user_ptr; - - if ((tipc_mode == TIPC_NOT_RUNNING) && !cb) - return -ENOPROTOOPT; - if (!users) - reg_init(); - - spin_lock_bh(®_lock); - if (!next_free_user) { - spin_unlock_bh(®_lock); - return -EBUSY; - } - user_ptr = &users[next_free_user]; - *userid = next_free_user; - next_free_user = user_ptr->next; - user_ptr->next = -1; - spin_unlock_bh(®_lock); - - user_ptr->callback = cb; - user_ptr->usr_handle = usr_handle; - INIT_LIST_HEAD(&user_ptr->ports); - atomic_inc(&tipc_user_count); - - if (cb && (tipc_mode != TIPC_NOT_RUNNING)) - tipc_k_signal((Handler)reg_callback, (unsigned long)user_ptr); - return 0; -} - -/** - * tipc_detach - deregister a TIPC user - */ - -void tipc_detach(u32 userid) -{ - struct tipc_user *user_ptr; - struct list_head ports_temp; - struct user_port *up_ptr, *temp_up_ptr; - - if ((userid == 0) || (userid > MAX_USERID)) - return; - - spin_lock_bh(®_lock); - if ((!users) || (users[userid].next >= 0)) { - spin_unlock_bh(®_lock); - return; - } - - user_ptr = &users[userid]; - user_ptr->callback = NULL; - INIT_LIST_HEAD(&ports_temp); - list_splice(&user_ptr->ports, &ports_temp); - user_ptr->next = next_free_user; - next_free_user = userid; - spin_unlock_bh(®_lock); - - atomic_dec(&tipc_user_count); - - list_for_each_entry_safe(up_ptr, temp_up_ptr, &ports_temp, uport_list) { - tipc_deleteport(up_ptr->ref); - } -} - -/** - * tipc_reg_add_port - register a user's driver port - */ - -int tipc_reg_add_port(struct user_port *up_ptr) -{ - struct tipc_user *user_ptr; - - if (up_ptr->user_ref == 0) - return 0; - if (up_ptr->user_ref > MAX_USERID) - return -EINVAL; - if ((tipc_mode == TIPC_NOT_RUNNING) || !users ) - return -ENOPROTOOPT; - - spin_lock_bh(®_lock); - user_ptr = &users[up_ptr->user_ref]; - list_add(&up_ptr->uport_list, &user_ptr->ports); - spin_unlock_bh(®_lock); - return 0; -} - -/** - * tipc_reg_remove_port - deregister a user's driver port - */ - -int tipc_reg_remove_port(struct user_port *up_ptr) -{ - if (up_ptr->user_ref == 0) - return 0; - if (up_ptr->user_ref > MAX_USERID) - return -EINVAL; - if (!users ) - return -ENOPROTOOPT; - - spin_lock_bh(®_lock); - list_del_init(&up_ptr->uport_list); - spin_unlock_bh(®_lock); - return 0; -} - diff --git a/net/tipc/user_reg.h b/net/tipc/user_reg.h deleted file mode 100644 index 81dc12e2882f..000000000000 --- a/net/tipc/user_reg.h +++ /dev/null @@ -1,48 +0,0 @@ -/* - * net/tipc/user_reg.h: Include file for TIPC user registry code - * - * Copyright (c) 2000-2006, Ericsson AB - * Copyright (c) 2005, Wind River Systems - * All rights reserved. - * - * Redistribution and use in source and binary forms, with or without - * modification, are permitted provided that the following conditions are met: - * - * 1. Redistributions of source code must retain the above copyright - * notice, this list of conditions and the following disclaimer. - * 2. Redistributions in binary form must reproduce the above copyright - * notice, this list of conditions and the following disclaimer in the - * documentation and/or other materials provided with the distribution. - * 3. Neither the names of the copyright holders nor the names of its - * contributors may be used to endorse or promote products derived from - * this software without specific prior written permission. - * - * Alternatively, this software may be distributed under the terms of the - * GNU General Public License ("GPL") version 2 as published by the Free - * Software Foundation. - * - * THIS SOFTWARE IS PROVIDED BY THE COPYRIGHT HOLDERS AND CONTRIBUTORS "AS IS" - * AND ANY EXPRESS OR IMPLIED WARRANTIES, INCLUDING, BUT NOT LIMITED TO, THE - * IMPLIED WARRANTIES OF MERCHANTABILITY AND FITNESS FOR A PARTICULAR PURPOSE - * ARE DISCLAIMED. IN NO EVENT SHALL THE COPYRIGHT OWNER OR CONTRIBUTORS BE - * LIABLE FOR ANY DIRECT, INDIRECT, INCIDENTAL, SPECIAL, EXEMPLARY, OR - * CONSEQUENTIAL DAMAGES (INCLUDING, BUT NOT LIMITED TO, PROCUREMENT OF - * SUBSTITUTE GOODS OR SERVICES; LOSS OF USE, DATA, OR PROFITS; OR BUSINESS - * INTERRUPTION) HOWEVER CAUSED AND ON ANY THEORY OF LIABILITY, WHETHER IN - * CONTRACT, STRICT LIABILITY, OR TORT (INCLUDING NEGLIGENCE OR OTHERWISE) - * ARISING IN ANY WAY OUT OF THE USE OF THIS SOFTWARE, EVEN IF ADVISED OF THE - * POSSIBILITY OF SUCH DAMAGE. - */ - -#ifndef _TIPC_USER_REG_H -#define _TIPC_USER_REG_H - -#include "port.h" - -int tipc_reg_start(void); -void tipc_reg_stop(void); - -int tipc_reg_add_port(struct user_port *up_ptr); -int tipc_reg_remove_port(struct user_port *up_ptr); - -#endif diff --git a/net/tipc/zone.c b/net/tipc/zone.c deleted file mode 100644 index 2c01ba2d86bf..000000000000 --- a/net/tipc/zone.c +++ /dev/null @@ -1,173 +0,0 @@ -/* - * net/tipc/zone.c: TIPC zone management routines - * - * Copyright (c) 2000-2006, Ericsson AB - * Copyright (c) 2005, Wind River Systems - * All rights reserved. - * - * Redistribution and use in source and binary forms, with or without - * modification, are permitted provided that the following conditions are met: - * - * 1. Redistributions of source code must retain the above copyright - * notice, this list of conditions and the following disclaimer. - * 2. Redistributions in binary form must reproduce the above copyright - * notice, this list of conditions and the following disclaimer in the - * documentation and/or other materials provided with the distribution. - * 3. Neither the names of the copyright holders nor the names of its - * contributors may be used to endorse or promote products derived from - * this software without specific prior written permission. - * - * Alternatively, this software may be distributed under the terms of the - * GNU General Public License ("GPL") version 2 as published by the Free - * Software Foundation. - * - * THIS SOFTWARE IS PROVIDED BY THE COPYRIGHT HOLDERS AND CONTRIBUTORS "AS IS" - * AND ANY EXPRESS OR IMPLIED WARRANTIES, INCLUDING, BUT NOT LIMITED TO, THE - * IMPLIED WARRANTIES OF MERCHANTABILITY AND FITNESS FOR A PARTICULAR PURPOSE - * ARE DISCLAIMED. IN NO EVENT SHALL THE COPYRIGHT OWNER OR CONTRIBUTORS BE - * LIABLE FOR ANY DIRECT, INDIRECT, INCIDENTAL, SPECIAL, EXEMPLARY, OR - * CONSEQUENTIAL DAMAGES (INCLUDING, BUT NOT LIMITED TO, PROCUREMENT OF - * SUBSTITUTE GOODS OR SERVICES; LOSS OF USE, DATA, OR PROFITS; OR BUSINESS - * INTERRUPTION) HOWEVER CAUSED AND ON ANY THEORY OF LIABILITY, WHETHER IN - * CONTRACT, STRICT LIABILITY, OR TORT (INCLUDING NEGLIGENCE OR OTHERWISE) - * ARISING IN ANY WAY OUT OF THE USE OF THIS SOFTWARE, EVEN IF ADVISED OF THE - * POSSIBILITY OF SUCH DAMAGE. - */ - -#include "core.h" -#include "zone.h" -#include "net.h" -#include "addr.h" -#include "node_subscr.h" -#include "cluster.h" -#include "node.h" - -struct _zone *tipc_zone_create(u32 addr) -{ - struct _zone *z_ptr; - u32 z_num; - - if (!tipc_addr_domain_valid(addr)) { - err("Zone creation failed, invalid domain 0x%x\n", addr); - return NULL; - } - - z_ptr = kzalloc(sizeof(*z_ptr), GFP_ATOMIC); - if (!z_ptr) { - warn("Zone creation failed, insufficient memory\n"); - return NULL; - } - - z_num = tipc_zone(addr); - z_ptr->addr = tipc_addr(z_num, 0, 0); - tipc_net.zones[z_num] = z_ptr; - return z_ptr; -} - -void tipc_zone_delete(struct _zone *z_ptr) -{ - u32 c_num; - - if (!z_ptr) - return; - for (c_num = 1; c_num <= tipc_max_clusters; c_num++) { - tipc_cltr_delete(z_ptr->clusters[c_num]); - } - kfree(z_ptr); -} - -void tipc_zone_attach_cluster(struct _zone *z_ptr, struct cluster *c_ptr) -{ - u32 c_num = tipc_cluster(c_ptr->addr); - - assert(c_ptr->addr); - assert(c_num <= tipc_max_clusters); - assert(z_ptr->clusters[c_num] == NULL); - z_ptr->clusters[c_num] = c_ptr; -} - -void tipc_zone_remove_as_router(struct _zone *z_ptr, u32 router) -{ - u32 c_num; - - for (c_num = 1; c_num <= tipc_max_clusters; c_num++) { - if (z_ptr->clusters[c_num]) { - tipc_cltr_remove_as_router(z_ptr->clusters[c_num], - router); - } - } -} - -void tipc_zone_send_external_routes(struct _zone *z_ptr, u32 dest) -{ - u32 c_num; - - for (c_num = 1; c_num <= tipc_max_clusters; c_num++) { - if (z_ptr->clusters[c_num]) { - if (in_own_cluster(z_ptr->addr)) - continue; - tipc_cltr_send_ext_routes(z_ptr->clusters[c_num], dest); - } - } -} - -struct tipc_node *tipc_zone_select_remote_node(struct _zone *z_ptr, u32 addr, u32 ref) -{ - struct cluster *c_ptr; - struct tipc_node *n_ptr; - u32 c_num; - - if (!z_ptr) - return NULL; - c_ptr = z_ptr->clusters[tipc_cluster(addr)]; - if (!c_ptr) - return NULL; - n_ptr = tipc_cltr_select_node(c_ptr, ref); - if (n_ptr) - return n_ptr; - - /* Links to any other clusters within this zone ? */ - for (c_num = 1; c_num <= tipc_max_clusters; c_num++) { - c_ptr = z_ptr->clusters[c_num]; - if (!c_ptr) - return NULL; - n_ptr = tipc_cltr_select_node(c_ptr, ref); - if (n_ptr) - return n_ptr; - } - return NULL; -} - -u32 tipc_zone_select_router(struct _zone *z_ptr, u32 addr, u32 ref) -{ - struct cluster *c_ptr; - u32 c_num; - u32 router; - - if (!z_ptr) - return 0; - c_ptr = z_ptr->clusters[tipc_cluster(addr)]; - router = c_ptr ? tipc_cltr_select_router(c_ptr, ref) : 0; - if (router) - return router; - - /* Links to any other clusters within the zone? */ - for (c_num = 1; c_num <= tipc_max_clusters; c_num++) { - c_ptr = z_ptr->clusters[c_num]; - router = c_ptr ? tipc_cltr_select_router(c_ptr, ref) : 0; - if (router) - return router; - } - return 0; -} - - -u32 tipc_zone_next_node(u32 addr) -{ - struct cluster *c_ptr = tipc_cltr_find(addr); - - if (c_ptr) - return tipc_cltr_next_node(c_ptr, addr); - return 0; -} - diff --git a/net/tipc/zone.h b/net/tipc/zone.h deleted file mode 100644 index 7bdc3406ba9b..000000000000 --- a/net/tipc/zone.h +++ /dev/null @@ -1,71 +0,0 @@ -/* - * net/tipc/zone.h: Include file for TIPC zone management routines - * - * Copyright (c) 2000-2006, Ericsson AB - * Copyright (c) 2005-2006, Wind River Systems - * All rights reserved. - * - * Redistribution and use in source and binary forms, with or without - * modification, are permitted provided that the following conditions are met: - * - * 1. Redistributions of source code must retain the above copyright - * notice, this list of conditions and the following disclaimer. - * 2. Redistributions in binary form must reproduce the above copyright - * notice, this list of conditions and the following disclaimer in the - * documentation and/or other materials provided with the distribution. - * 3. Neither the names of the copyright holders nor the names of its - * contributors may be used to endorse or promote products derived from - * this software without specific prior written permission. - * - * Alternatively, this software may be distributed under the terms of the - * GNU General Public License ("GPL") version 2 as published by the Free - * Software Foundation. - * - * THIS SOFTWARE IS PROVIDED BY THE COPYRIGHT HOLDERS AND CONTRIBUTORS "AS IS" - * AND ANY EXPRESS OR IMPLIED WARRANTIES, INCLUDING, BUT NOT LIMITED TO, THE - * IMPLIED WARRANTIES OF MERCHANTABILITY AND FITNESS FOR A PARTICULAR PURPOSE - * ARE DISCLAIMED. IN NO EVENT SHALL THE COPYRIGHT OWNER OR CONTRIBUTORS BE - * LIABLE FOR ANY DIRECT, INDIRECT, INCIDENTAL, SPECIAL, EXEMPLARY, OR - * CONSEQUENTIAL DAMAGES (INCLUDING, BUT NOT LIMITED TO, PROCUREMENT OF - * SUBSTITUTE GOODS OR SERVICES; LOSS OF USE, DATA, OR PROFITS; OR BUSINESS - * INTERRUPTION) HOWEVER CAUSED AND ON ANY THEORY OF LIABILITY, WHETHER IN - * CONTRACT, STRICT LIABILITY, OR TORT (INCLUDING NEGLIGENCE OR OTHERWISE) - * ARISING IN ANY WAY OUT OF THE USE OF THIS SOFTWARE, EVEN IF ADVISED OF THE - * POSSIBILITY OF SUCH DAMAGE. - */ - -#ifndef _TIPC_ZONE_H -#define _TIPC_ZONE_H - -#include "node_subscr.h" -#include "net.h" - - -/** - * struct _zone - TIPC zone structure - * @addr: network address of zone - * @clusters: array of pointers to all clusters within zone - * @links: number of (unicast) links to zone - */ - -struct _zone { - u32 addr; - struct cluster *clusters[2]; /* currently limited to just 1 cluster */ - u32 links; -}; - -struct tipc_node *tipc_zone_select_remote_node(struct _zone *z_ptr, u32 addr, u32 ref); -u32 tipc_zone_select_router(struct _zone *z_ptr, u32 addr, u32 ref); -void tipc_zone_remove_as_router(struct _zone *z_ptr, u32 router); -void tipc_zone_send_external_routes(struct _zone *z_ptr, u32 dest); -struct _zone *tipc_zone_create(u32 addr); -void tipc_zone_delete(struct _zone *z_ptr); -void tipc_zone_attach_cluster(struct _zone *z_ptr, struct cluster *c_ptr); -u32 tipc_zone_next_node(u32 addr); - -static inline struct _zone *tipc_zone_find(u32 addr) -{ - return tipc_net.zones[tipc_zone(addr)]; -} - -#endif |