diff options
Diffstat (limited to 'net/xfrm')
| -rw-r--r-- | net/xfrm/Makefile | 1 | ||||
| -rw-r--r-- | net/xfrm/xfrm_hash.c | 1 | ||||
| -rw-r--r-- | net/xfrm/xfrm_hash.h | 1 | ||||
| -rw-r--r-- | net/xfrm/xfrm_input.c | 74 | ||||
| -rw-r--r-- | net/xfrm/xfrm_output.c | 4 | ||||
| -rw-r--r-- | net/xfrm/xfrm_policy.c | 70 | ||||
| -rw-r--r-- | net/xfrm/xfrm_state.c | 11 | ||||
| -rw-r--r-- | net/xfrm/xfrm_sysctl.c | 1 | ||||
| -rw-r--r-- | net/xfrm/xfrm_user.c | 131 |
9 files changed, 208 insertions, 86 deletions
diff --git a/net/xfrm/Makefile b/net/xfrm/Makefile index 55b2ac300995..0bd2465a8c5a 100644 --- a/net/xfrm/Makefile +++ b/net/xfrm/Makefile @@ -1,3 +1,4 @@ +# SPDX-License-Identifier: GPL-2.0 # # Makefile for the XFRM subsystem. # diff --git a/net/xfrm/xfrm_hash.c b/net/xfrm/xfrm_hash.c index 1e98bc0fe0a5..2ad33ce1ea17 100644 --- a/net/xfrm/xfrm_hash.c +++ b/net/xfrm/xfrm_hash.c @@ -1,3 +1,4 @@ +// SPDX-License-Identifier: GPL-2.0 /* xfrm_hash.c: Common hash table code. * * Copyright (C) 2006 David S. Miller ([email protected]) diff --git a/net/xfrm/xfrm_hash.h b/net/xfrm/xfrm_hash.h index eaea9c4fb3b0..61be810389d8 100644 --- a/net/xfrm/xfrm_hash.h +++ b/net/xfrm/xfrm_hash.h @@ -1,3 +1,4 @@ +/* SPDX-License-Identifier: GPL-2.0 */ #ifndef _XFRM_HASH_H #define _XFRM_HASH_H diff --git a/net/xfrm/xfrm_input.c b/net/xfrm/xfrm_input.c index 8ac9d32fb79d..3f6f6f8c9fa5 100644 --- a/net/xfrm/xfrm_input.c +++ b/net/xfrm/xfrm_input.c @@ -1,3 +1,4 @@ +// SPDX-License-Identifier: GPL-2.0 /* * xfrm_input.c * @@ -7,15 +8,29 @@ * */ +#include <linux/bottom_half.h> +#include <linux/interrupt.h> #include <linux/slab.h> #include <linux/module.h> #include <linux/netdevice.h> +#include <linux/percpu.h> #include <net/dst.h> #include <net/ip.h> #include <net/xfrm.h> #include <net/ip_tunnels.h> #include <net/ip6_tunnel.h> +struct xfrm_trans_tasklet { + struct tasklet_struct tasklet; + struct sk_buff_head queue; +}; + +struct xfrm_trans_cb { + int (*finish)(struct net *net, struct sock *sk, struct sk_buff *skb); +}; + +#define XFRM_TRANS_SKB_CB(__skb) ((struct xfrm_trans_cb *)&((__skb)->cb[0])) + static struct kmem_cache *secpath_cachep __read_mostly; static DEFINE_SPINLOCK(xfrm_input_afinfo_lock); @@ -24,6 +39,8 @@ static struct xfrm_input_afinfo const __rcu *xfrm_input_afinfo[AF_INET6 + 1]; static struct gro_cells gro_cells; static struct net_device xfrm_napi_dev; +static DEFINE_PER_CPU(struct xfrm_trans_tasklet, xfrm_trans_tasklet); + int xfrm_input_register_afinfo(const struct xfrm_input_afinfo *afinfo) { int err = 0; @@ -206,7 +223,7 @@ int xfrm_input(struct sk_buff *skb, int nexthdr, __be32 spi, int encap_type) xfrm_address_t *daddr; struct xfrm_mode *inner_mode; u32 mark = skb->mark; - unsigned int family; + unsigned int family = AF_UNSPEC; int decaps = 0; int async = 0; bool xfrm_gro = false; @@ -215,6 +232,16 @@ int xfrm_input(struct sk_buff *skb, int nexthdr, __be32 spi, int encap_type) if (encap_type < 0) { x = xfrm_input_state(skb); + + if (unlikely(x->km.state != XFRM_STATE_VALID)) { + if (x->km.state == XFRM_STATE_ACQ) + XFRM_INC_STATS(net, LINUX_MIB_XFRMACQUIREERROR); + else + XFRM_INC_STATS(net, + LINUX_MIB_XFRMINSTATEINVALID); + goto drop; + } + family = x->outer_mode->afinfo->family; /* An encap_type of -1 indicates async resumption. */ @@ -265,8 +292,6 @@ int xfrm_input(struct sk_buff *skb, int nexthdr, __be32 spi, int encap_type) goto lock; } - daddr = (xfrm_address_t *)(skb_network_header(skb) + - XFRM_SPI_SKB_CB(skb)->daddroff); family = XFRM_SPI_SKB_CB(skb)->family; /* if tunnel is present override skb->mark value with tunnel i_key */ @@ -293,6 +318,8 @@ int xfrm_input(struct sk_buff *skb, int nexthdr, __be32 spi, int encap_type) goto drop; } + daddr = (xfrm_address_t *)(skb_network_header(skb) + + XFRM_SPI_SKB_CB(skb)->daddroff); do { if (skb->sp->len == XFRM_MAX_DEPTH) { XFRM_INC_STATS(net, LINUX_MIB_XFRMINBUFFERERROR); @@ -466,9 +493,41 @@ int xfrm_input_resume(struct sk_buff *skb, int nexthdr) } EXPORT_SYMBOL(xfrm_input_resume); +static void xfrm_trans_reinject(unsigned long data) +{ + struct xfrm_trans_tasklet *trans = (void *)data; + struct sk_buff_head queue; + struct sk_buff *skb; + + __skb_queue_head_init(&queue); + skb_queue_splice_init(&trans->queue, &queue); + + while ((skb = __skb_dequeue(&queue))) + XFRM_TRANS_SKB_CB(skb)->finish(dev_net(skb->dev), NULL, skb); +} + +int xfrm_trans_queue(struct sk_buff *skb, + int (*finish)(struct net *, struct sock *, + struct sk_buff *)) +{ + struct xfrm_trans_tasklet *trans; + + trans = this_cpu_ptr(&xfrm_trans_tasklet); + + if (skb_queue_len(&trans->queue) >= netdev_max_backlog) + return -ENOBUFS; + + XFRM_TRANS_SKB_CB(skb)->finish = finish; + skb_queue_tail(&trans->queue, skb); + tasklet_schedule(&trans->tasklet); + return 0; +} +EXPORT_SYMBOL(xfrm_trans_queue); + void __init xfrm_input_init(void) { int err; + int i; init_dummy_netdev(&xfrm_napi_dev); err = gro_cells_init(&gro_cells, &xfrm_napi_dev); @@ -479,4 +538,13 @@ void __init xfrm_input_init(void) sizeof(struct sec_path), 0, SLAB_HWCACHE_ALIGN|SLAB_PANIC, NULL); + + for_each_possible_cpu(i) { + struct xfrm_trans_tasklet *trans; + + trans = &per_cpu(xfrm_trans_tasklet, i); + __skb_queue_head_init(&trans->queue); + tasklet_init(&trans->tasklet, xfrm_trans_reinject, + (unsigned long)trans); + } } diff --git a/net/xfrm/xfrm_output.c b/net/xfrm/xfrm_output.c index 31a2e6d34dba..73ad8c8ef344 100644 --- a/net/xfrm/xfrm_output.c +++ b/net/xfrm/xfrm_output.c @@ -105,6 +105,9 @@ static int xfrm_output_one(struct sk_buff *skb, int err) if (xfrm_offload(skb)) { x->type_offload->encap(x, skb); } else { + /* Inner headers are invalid now. */ + skb->encapsulation = 0; + err = x->type->output(x, skb); if (err == -EINPROGRESS) goto out; @@ -208,7 +211,6 @@ int xfrm_output(struct sock *sk, struct sk_buff *skb) int err; secpath_reset(skb); - skb->encapsulation = 0; if (xfrm_dev_offload_ok(skb, x)) { struct sec_path *sp; diff --git a/net/xfrm/xfrm_policy.c b/net/xfrm/xfrm_policy.c index 2746b62a8944..70aa5cb0c659 100644 --- a/net/xfrm/xfrm_policy.c +++ b/net/xfrm/xfrm_policy.c @@ -57,7 +57,7 @@ static __read_mostly seqcount_t xfrm_policy_hash_generation; static void xfrm_init_pmtu(struct dst_entry *dst); static int stale_bundle(struct dst_entry *dst); static int xfrm_bundle_ok(struct xfrm_dst *xdst); -static void xfrm_policy_queue_process(unsigned long arg); +static void xfrm_policy_queue_process(struct timer_list *t); static void __xfrm_policy_link(struct xfrm_policy *pol, int dir); static struct xfrm_policy *__xfrm_policy_unlink(struct xfrm_policy *pol, @@ -179,9 +179,9 @@ static inline unsigned long make_jiffies(long secs) return secs*HZ; } -static void xfrm_policy_timer(unsigned long data) +static void xfrm_policy_timer(struct timer_list *t) { - struct xfrm_policy *xp = (struct xfrm_policy *)data; + struct xfrm_policy *xp = from_timer(xp, t, timer); unsigned long now = get_seconds(); long next = LONG_MAX; int warn = 0; @@ -267,10 +267,9 @@ struct xfrm_policy *xfrm_policy_alloc(struct net *net, gfp_t gfp) rwlock_init(&policy->lock); refcount_set(&policy->refcnt, 1); skb_queue_head_init(&policy->polq.hold_queue); - setup_timer(&policy->timer, xfrm_policy_timer, - (unsigned long)policy); - setup_timer(&policy->polq.hold_timer, xfrm_policy_queue_process, - (unsigned long)policy); + timer_setup(&policy->timer, xfrm_policy_timer, 0); + timer_setup(&policy->polq.hold_timer, + xfrm_policy_queue_process, 0); } return policy; } @@ -1169,9 +1168,15 @@ static struct xfrm_policy *xfrm_sk_policy_lookup(const struct sock *sk, int dir, again: pol = rcu_dereference(sk->sk_policy[dir]); if (pol != NULL) { - bool match = xfrm_selector_match(&pol->selector, fl, family); + bool match; int err = 0; + if (pol->family != family) { + pol = NULL; + goto out; + } + + match = xfrm_selector_match(&pol->selector, fl, family); if (match) { if ((sk->sk_mark & pol->mark.m) != pol->mark.v) { pol = NULL; @@ -1306,6 +1311,7 @@ static struct xfrm_policy *clone_policy(const struct xfrm_policy *old, int dir) newp->xfrm_nr = old->xfrm_nr; newp->index = old->index; newp->type = old->type; + newp->family = old->family; memcpy(newp->xfrm_vec, old->xfrm_vec, newp->xfrm_nr*sizeof(struct xfrm_tmpl)); spin_lock_bh(&net->xfrm.xfrm_policy_lock); @@ -1787,19 +1793,23 @@ void xfrm_policy_cache_flush(void) put_online_cpus(); } -static bool xfrm_pol_dead(struct xfrm_dst *xdst) +static bool xfrm_xdst_can_reuse(struct xfrm_dst *xdst, + struct xfrm_state * const xfrm[], + int num) { - unsigned int num_pols = xdst->num_pols; - unsigned int pol_dead = 0, i; + const struct dst_entry *dst = &xdst->u.dst; + int i; - for (i = 0; i < num_pols; i++) - pol_dead |= xdst->pols[i]->walk.dead; + if (xdst->num_xfrms != num) + return false; - /* Mark DST_OBSOLETE_DEAD to fail the next xfrm_dst_check() */ - if (pol_dead) - xdst->u.dst.obsolete = DST_OBSOLETE_DEAD; + for (i = 0; i < num; i++) { + if (!dst || dst->xfrm != xfrm[i]) + return false; + dst = dst->child; + } - return pol_dead; + return xfrm_bundle_ok(xdst); } static struct xfrm_dst * @@ -1813,26 +1823,29 @@ xfrm_resolve_and_create_bundle(struct xfrm_policy **pols, int num_pols, struct dst_entry *dst; int err; + /* Try to instantiate a bundle */ + err = xfrm_tmpl_resolve(pols, num_pols, fl, xfrm, family); + if (err <= 0) { + if (err != 0 && err != -EAGAIN) + XFRM_INC_STATS(net, LINUX_MIB_XFRMOUTPOLERROR); + return ERR_PTR(err); + } + xdst = this_cpu_read(xfrm_last_dst); if (xdst && xdst->u.dst.dev == dst_orig->dev && xdst->num_pols == num_pols && - !xfrm_pol_dead(xdst) && memcmp(xdst->pols, pols, sizeof(struct xfrm_policy *) * num_pols) == 0 && - xfrm_bundle_ok(xdst)) { + xfrm_xdst_can_reuse(xdst, xfrm, err)) { dst_hold(&xdst->u.dst); + xfrm_pols_put(pols, num_pols); + while (err > 0) + xfrm_state_put(xfrm[--err]); return xdst; } old = xdst; - /* Try to instantiate a bundle */ - err = xfrm_tmpl_resolve(pols, num_pols, fl, xfrm, family); - if (err <= 0) { - if (err != 0 && err != -EAGAIN) - XFRM_INC_STATS(net, LINUX_MIB_XFRMOUTPOLERROR); - return ERR_PTR(err); - } dst = xfrm_bundle_create(pols[0], xfrm, err, fl, dst_orig); if (IS_ERR(dst)) { @@ -1852,12 +1865,12 @@ xfrm_resolve_and_create_bundle(struct xfrm_policy **pols, int num_pols, return xdst; } -static void xfrm_policy_queue_process(unsigned long arg) +static void xfrm_policy_queue_process(struct timer_list *t) { struct sk_buff *skb; struct sock *sk; struct dst_entry *dst; - struct xfrm_policy *pol = (struct xfrm_policy *)arg; + struct xfrm_policy *pol = from_timer(pol, t, polq.hold_timer); struct net *net = xp_net(pol); struct xfrm_policy_queue *pq = &pol->polq; struct flowi fl; @@ -2076,7 +2089,6 @@ make_dummy_bundle: xdst->num_xfrms = num_xfrms; memcpy(xdst->pols, pols, sizeof(struct xfrm_policy *) * num_pols); - dst_hold(&xdst->u.dst); return xdst; inc_error: diff --git a/net/xfrm/xfrm_state.c b/net/xfrm/xfrm_state.c index 12213477cd3a..500b3391f474 100644 --- a/net/xfrm/xfrm_state.c +++ b/net/xfrm/xfrm_state.c @@ -556,7 +556,7 @@ out: return HRTIMER_NORESTART; } -static void xfrm_replay_timer_handler(unsigned long data); +static void xfrm_replay_timer_handler(struct timer_list *t); struct xfrm_state *xfrm_state_alloc(struct net *net) { @@ -574,8 +574,7 @@ struct xfrm_state *xfrm_state_alloc(struct net *net) INIT_HLIST_NODE(&x->byspi); tasklet_hrtimer_init(&x->mtimer, xfrm_timer_handler, CLOCK_BOOTTIME, HRTIMER_MODE_ABS); - setup_timer(&x->rtimer, xfrm_replay_timer_handler, - (unsigned long)x); + timer_setup(&x->rtimer, xfrm_replay_timer_handler, 0); x->curlft.add_time = get_seconds(); x->lft.soft_byte_limit = XFRM_INF; x->lft.soft_packet_limit = XFRM_INF; @@ -1344,6 +1343,7 @@ static struct xfrm_state *xfrm_state_clone(struct xfrm_state *orig, if (orig->aead) { x->aead = xfrm_algo_aead_clone(orig->aead); + x->geniv = orig->geniv; if (!x->aead) goto error; } @@ -1879,9 +1879,9 @@ void xfrm_state_walk_done(struct xfrm_state_walk *walk, struct net *net) } EXPORT_SYMBOL(xfrm_state_walk_done); -static void xfrm_replay_timer_handler(unsigned long data) +static void xfrm_replay_timer_handler(struct timer_list *t) { - struct xfrm_state *x = (struct xfrm_state *)data; + struct xfrm_state *x = from_timer(x, t, rtimer); spin_lock(&x->lock); @@ -2069,6 +2069,7 @@ int xfrm_user_policy(struct sock *sk, int optname, u8 __user *optval, int optlen if (err >= 0) { xfrm_sk_policy_insert(sk, err, pol); xfrm_pol_put(pol); + __sk_dst_reset(sk); err = 0; } diff --git a/net/xfrm/xfrm_sysctl.c b/net/xfrm/xfrm_sysctl.c index 35a7e794ad04..0c6c5ef65f9d 100644 --- a/net/xfrm/xfrm_sysctl.c +++ b/net/xfrm/xfrm_sysctl.c @@ -1,3 +1,4 @@ +// SPDX-License-Identifier: GPL-2.0 #include <linux/sysctl.h> #include <linux/slab.h> #include <net/net_namespace.h> diff --git a/net/xfrm/xfrm_user.c b/net/xfrm/xfrm_user.c index e44a0fed48dd..bdb48e5dba04 100644 --- a/net/xfrm/xfrm_user.c +++ b/net/xfrm/xfrm_user.c @@ -42,7 +42,7 @@ static int verify_one_alg(struct nlattr **attrs, enum xfrm_attr_type_t type) return 0; algp = nla_data(rt); - if (nla_len(rt) < xfrm_alg_len(algp)) + if (nla_len(rt) < (int)xfrm_alg_len(algp)) return -EINVAL; switch (type) { @@ -68,7 +68,7 @@ static int verify_auth_trunc(struct nlattr **attrs) return 0; algp = nla_data(rt); - if (nla_len(rt) < xfrm_alg_auth_len(algp)) + if (nla_len(rt) < (int)xfrm_alg_auth_len(algp)) return -EINVAL; algp->alg_name[sizeof(algp->alg_name) - 1] = '\0'; @@ -84,7 +84,7 @@ static int verify_aead(struct nlattr **attrs) return 0; algp = nla_data(rt); - if (nla_len(rt) < aead_len(algp)) + if (nla_len(rt) < (int)aead_len(algp)) return -EINVAL; algp->alg_name[sizeof(algp->alg_name) - 1] = '\0'; @@ -130,7 +130,7 @@ static inline int verify_replay(struct xfrm_usersa_info *p, if (rs->bmp_len > XFRMA_REPLAY_ESN_MAX / sizeof(rs->bmp[0]) / 8) return -EINVAL; - if (nla_len(rt) < xfrm_replay_state_esn_len(rs) && + if (nla_len(rt) < (int)xfrm_replay_state_esn_len(rs) && nla_len(rt) != sizeof(*rs)) return -EINVAL; } @@ -404,7 +404,7 @@ static inline int xfrm_replay_verify_len(struct xfrm_replay_state_esn *replay_es struct nlattr *rp) { struct xfrm_replay_state_esn *up; - int ulen; + unsigned int ulen; if (!replay_esn || !rp) return 0; @@ -414,7 +414,7 @@ static inline int xfrm_replay_verify_len(struct xfrm_replay_state_esn *replay_es /* Check the overall length and the internal bitmap length to avoid * potential overflow. */ - if (nla_len(rp) < ulen || + if (nla_len(rp) < (int)ulen || xfrm_replay_state_esn_len(replay_esn) != ulen || replay_esn->bmp_len != up->bmp_len) return -EINVAL; @@ -430,14 +430,14 @@ static int xfrm_alloc_replay_state_esn(struct xfrm_replay_state_esn **replay_esn struct nlattr *rta) { struct xfrm_replay_state_esn *p, *pp, *up; - int klen, ulen; + unsigned int klen, ulen; if (!rta) return 0; up = nla_data(rta); klen = xfrm_replay_state_esn_len(up); - ulen = nla_len(rta) >= klen ? klen : sizeof(*up); + ulen = nla_len(rta) >= (int)klen ? klen : sizeof(*up); p = kzalloc(klen, GFP_KERNEL); if (!p) @@ -458,9 +458,9 @@ static int xfrm_alloc_replay_state_esn(struct xfrm_replay_state_esn **replay_esn return 0; } -static inline int xfrm_user_sec_ctx_size(struct xfrm_sec_ctx *xfrm_ctx) +static inline unsigned int xfrm_user_sec_ctx_size(struct xfrm_sec_ctx *xfrm_ctx) { - int len = 0; + unsigned int len = 0; if (xfrm_ctx) { len += sizeof(struct xfrm_user_sec_ctx); @@ -1032,7 +1032,7 @@ static inline int xfrm_nlmsg_multicast(struct net *net, struct sk_buff *skb, return -1; } -static inline size_t xfrm_spdinfo_msgsize(void) +static inline unsigned int xfrm_spdinfo_msgsize(void) { return NLMSG_ALIGN(4) + nla_total_size(sizeof(struct xfrmu_spdinfo)) @@ -1147,18 +1147,19 @@ static int xfrm_get_spdinfo(struct sk_buff *skb, struct nlmsghdr *nlh, u32 *flags = nlmsg_data(nlh); u32 sportid = NETLINK_CB(skb).portid; u32 seq = nlh->nlmsg_seq; + int err; r_skb = nlmsg_new(xfrm_spdinfo_msgsize(), GFP_ATOMIC); if (r_skb == NULL) return -ENOMEM; - if (build_spdinfo(r_skb, net, sportid, seq, *flags) < 0) - BUG(); + err = build_spdinfo(r_skb, net, sportid, seq, *flags); + BUG_ON(err < 0); return nlmsg_unicast(net->xfrm.nlsk, r_skb, sportid); } -static inline size_t xfrm_sadinfo_msgsize(void) +static inline unsigned int xfrm_sadinfo_msgsize(void) { return NLMSG_ALIGN(4) + nla_total_size(sizeof(struct xfrmu_sadhinfo)) @@ -1205,13 +1206,14 @@ static int xfrm_get_sadinfo(struct sk_buff *skb, struct nlmsghdr *nlh, u32 *flags = nlmsg_data(nlh); u32 sportid = NETLINK_CB(skb).portid; u32 seq = nlh->nlmsg_seq; + int err; r_skb = nlmsg_new(xfrm_sadinfo_msgsize(), GFP_ATOMIC); if (r_skb == NULL) return -ENOMEM; - if (build_sadinfo(r_skb, net, sportid, seq, *flags) < 0) - BUG(); + err = build_sadinfo(r_skb, net, sportid, seq, *flags); + BUG_ON(err < 0); return nlmsg_unicast(net->xfrm.nlsk, r_skb, sportid); } @@ -1417,11 +1419,14 @@ static void copy_templates(struct xfrm_policy *xp, struct xfrm_user_tmpl *ut, static int validate_tmpl(int nr, struct xfrm_user_tmpl *ut, u16 family) { + u16 prev_family; int i; if (nr > XFRM_MAX_DEPTH) return -EINVAL; + prev_family = family; + for (i = 0; i < nr; i++) { /* We never validated the ut->family value, so many * applications simply leave it at zero. The check was @@ -1433,6 +1438,12 @@ static int validate_tmpl(int nr, struct xfrm_user_tmpl *ut, u16 family) if (!ut[i].family) ut[i].family = family; + if ((ut[i].mode == XFRM_MODE_TRANSPORT) && + (ut[i].family != prev_family)) + return -EINVAL; + + prev_family = ut[i].family; + switch (ut[i].family) { case AF_INET: break; @@ -1443,6 +1454,21 @@ static int validate_tmpl(int nr, struct xfrm_user_tmpl *ut, u16 family) default: return -EINVAL; } + + switch (ut[i].id.proto) { + case IPPROTO_AH: + case IPPROTO_ESP: + case IPPROTO_COMP: +#if IS_ENABLED(CONFIG_IPV6) + case IPPROTO_ROUTING: + case IPPROTO_DSTOPTS: +#endif + case IPSEC_PROTO_ANY: + break; + default: + return -EINVAL; + } + } return 0; @@ -1634,7 +1660,7 @@ static inline int copy_to_user_sec_ctx(struct xfrm_policy *xp, struct sk_buff *s return copy_sec_ctx(xp->security, skb); return 0; } -static inline size_t userpolicy_type_attrsize(void) +static inline unsigned int userpolicy_type_attrsize(void) { #ifdef CONFIG_XFRM_SUB_POLICY return nla_total_size(sizeof(struct xfrm_userpolicy_type)); @@ -1853,9 +1879,9 @@ static int xfrm_flush_sa(struct sk_buff *skb, struct nlmsghdr *nlh, return 0; } -static inline size_t xfrm_aevent_msgsize(struct xfrm_state *x) +static inline unsigned int xfrm_aevent_msgsize(struct xfrm_state *x) { - size_t replay_size = x->replay_esn ? + unsigned int replay_size = x->replay_esn ? xfrm_replay_state_esn_len(x->replay_esn) : sizeof(struct xfrm_replay_state); @@ -1960,8 +1986,9 @@ static int xfrm_get_ae(struct sk_buff *skb, struct nlmsghdr *nlh, c.seq = nlh->nlmsg_seq; c.portid = nlh->nlmsg_pid; - if (build_aevent(r_skb, x, &c) < 0) - BUG(); + err = build_aevent(r_skb, x, &c); + BUG_ON(err < 0); + err = nlmsg_unicast(net->xfrm.nlsk, r_skb, NETLINK_CB(skb).portid); spin_unlock_bh(&x->lock); xfrm_state_put(x); @@ -2324,8 +2351,8 @@ static int copy_to_user_kmaddress(const struct xfrm_kmaddress *k, struct sk_buff return nla_put(skb, XFRMA_KMADDRESS, sizeof(uk), &uk); } -static inline size_t xfrm_migrate_msgsize(int num_migrate, int with_kma, - int with_encp) +static inline unsigned int xfrm_migrate_msgsize(int num_migrate, int with_kma, + int with_encp) { return NLMSG_ALIGN(sizeof(struct xfrm_userpolicy_id)) + (with_kma ? nla_total_size(sizeof(struct xfrm_kmaddress)) : 0) @@ -2388,6 +2415,7 @@ static int xfrm_send_migrate(const struct xfrm_selector *sel, u8 dir, u8 type, { struct net *net = &init_net; struct sk_buff *skb; + int err; skb = nlmsg_new(xfrm_migrate_msgsize(num_migrate, !!k, !!encap), GFP_ATOMIC); @@ -2395,8 +2423,8 @@ static int xfrm_send_migrate(const struct xfrm_selector *sel, u8 dir, u8 type, return -ENOMEM; /* build migrate */ - if (build_migrate(skb, m, num_migrate, k, sel, encap, dir, type) < 0) - BUG(); + err = build_migrate(skb, m, num_migrate, k, sel, encap, dir, type); + BUG_ON(err < 0); return xfrm_nlmsg_multicast(net, skb, 0, XFRMNLGRP_MIGRATE); } @@ -2466,7 +2494,7 @@ static const struct nla_policy xfrma_policy[XFRMA_MAX+1] = { [XFRMA_PROTO] = { .type = NLA_U8 }, [XFRMA_ADDRESS_FILTER] = { .len = sizeof(struct xfrm_address_filter) }, [XFRMA_OFFLOAD_DEV] = { .len = sizeof(struct xfrm_user_offload) }, - [XFRMA_OUTPUT_MARK] = { .len = NLA_U32 }, + [XFRMA_OUTPUT_MARK] = { .type = NLA_U32 }, }; static const struct nla_policy xfrma_spd_policy[XFRMA_SPD_MAX+1] = { @@ -2572,7 +2600,7 @@ static void xfrm_netlink_rcv(struct sk_buff *skb) mutex_unlock(&net->xfrm.xfrm_cfg_mutex); } -static inline size_t xfrm_expire_msgsize(void) +static inline unsigned int xfrm_expire_msgsize(void) { return NLMSG_ALIGN(sizeof(struct xfrm_user_expire)) + nla_total_size(sizeof(struct xfrm_mark)); @@ -2623,13 +2651,14 @@ static int xfrm_aevent_state_notify(struct xfrm_state *x, const struct km_event { struct net *net = xs_net(x); struct sk_buff *skb; + int err; skb = nlmsg_new(xfrm_aevent_msgsize(x), GFP_ATOMIC); if (skb == NULL) return -ENOMEM; - if (build_aevent(skb, x, c) < 0) - BUG(); + err = build_aevent(skb, x, c); + BUG_ON(err < 0); return xfrm_nlmsg_multicast(net, skb, 0, XFRMNLGRP_AEVENTS); } @@ -2660,9 +2689,9 @@ static int xfrm_notify_sa_flush(const struct km_event *c) return xfrm_nlmsg_multicast(net, skb, 0, XFRMNLGRP_SA); } -static inline size_t xfrm_sa_len(struct xfrm_state *x) +static inline unsigned int xfrm_sa_len(struct xfrm_state *x) { - size_t l = 0; + unsigned int l = 0; if (x->aead) l += nla_total_size(aead_len(x->aead)); if (x->aalg) { @@ -2707,8 +2736,9 @@ static int xfrm_notify_sa(struct xfrm_state *x, const struct km_event *c) struct xfrm_usersa_id *id; struct nlmsghdr *nlh; struct sk_buff *skb; - int len = xfrm_sa_len(x); - int headlen, err; + unsigned int len = xfrm_sa_len(x); + unsigned int headlen; + int err; headlen = sizeof(*p); if (c->event == XFRM_MSG_DELSA) { @@ -2782,8 +2812,8 @@ static int xfrm_send_state_notify(struct xfrm_state *x, const struct km_event *c } -static inline size_t xfrm_acquire_msgsize(struct xfrm_state *x, - struct xfrm_policy *xp) +static inline unsigned int xfrm_acquire_msgsize(struct xfrm_state *x, + struct xfrm_policy *xp) { return NLMSG_ALIGN(sizeof(struct xfrm_user_acquire)) + nla_total_size(sizeof(struct xfrm_user_tmpl) * xp->xfrm_nr) @@ -2835,13 +2865,14 @@ static int xfrm_send_acquire(struct xfrm_state *x, struct xfrm_tmpl *xt, { struct net *net = xs_net(x); struct sk_buff *skb; + int err; skb = nlmsg_new(xfrm_acquire_msgsize(x, xp), GFP_ATOMIC); if (skb == NULL) return -ENOMEM; - if (build_acquire(skb, x, xt, xp) < 0) - BUG(); + err = build_acquire(skb, x, xt, xp); + BUG_ON(err < 0); return xfrm_nlmsg_multicast(net, skb, 0, XFRMNLGRP_ACQUIRE); } @@ -2906,7 +2937,7 @@ static struct xfrm_policy *xfrm_compile_policy(struct sock *sk, int opt, return xp; } -static inline size_t xfrm_polexpire_msgsize(struct xfrm_policy *xp) +static inline unsigned int xfrm_polexpire_msgsize(struct xfrm_policy *xp) { return NLMSG_ALIGN(sizeof(struct xfrm_user_polexpire)) + nla_total_size(sizeof(struct xfrm_user_tmpl) * xp->xfrm_nr) @@ -2950,26 +2981,28 @@ static int xfrm_exp_policy_notify(struct xfrm_policy *xp, int dir, const struct { struct net *net = xp_net(xp); struct sk_buff *skb; + int err; skb = nlmsg_new(xfrm_polexpire_msgsize(xp), GFP_ATOMIC); if (skb == NULL) return -ENOMEM; - if (build_polexpire(skb, xp, dir, c) < 0) - BUG(); + err = build_polexpire(skb, xp, dir, c); + BUG_ON(err < 0); return xfrm_nlmsg_multicast(net, skb, 0, XFRMNLGRP_EXPIRE); } static int xfrm_notify_policy(struct xfrm_policy *xp, int dir, const struct km_event *c) { - int len = nla_total_size(sizeof(struct xfrm_user_tmpl) * xp->xfrm_nr); + unsigned int len = nla_total_size(sizeof(struct xfrm_user_tmpl) * xp->xfrm_nr); struct net *net = xp_net(xp); struct xfrm_userpolicy_info *p; struct xfrm_userpolicy_id *id; struct nlmsghdr *nlh; struct sk_buff *skb; - int headlen, err; + unsigned int headlen; + int err; headlen = sizeof(*p); if (c->event == XFRM_MSG_DELPOLICY) { @@ -3076,7 +3109,7 @@ static int xfrm_send_policy_notify(struct xfrm_policy *xp, int dir, const struct } -static inline size_t xfrm_report_msgsize(void) +static inline unsigned int xfrm_report_msgsize(void) { return NLMSG_ALIGN(sizeof(struct xfrm_user_report)); } @@ -3110,18 +3143,19 @@ static int xfrm_send_report(struct net *net, u8 proto, struct xfrm_selector *sel, xfrm_address_t *addr) { struct sk_buff *skb; + int err; skb = nlmsg_new(xfrm_report_msgsize(), GFP_ATOMIC); if (skb == NULL) return -ENOMEM; - if (build_report(skb, proto, sel, addr) < 0) - BUG(); + err = build_report(skb, proto, sel, addr); + BUG_ON(err < 0); return xfrm_nlmsg_multicast(net, skb, 0, XFRMNLGRP_REPORT); } -static inline size_t xfrm_mapping_msgsize(void) +static inline unsigned int xfrm_mapping_msgsize(void) { return NLMSG_ALIGN(sizeof(struct xfrm_user_mapping)); } @@ -3157,6 +3191,7 @@ static int xfrm_send_mapping(struct xfrm_state *x, xfrm_address_t *ipaddr, { struct net *net = xs_net(x); struct sk_buff *skb; + int err; if (x->id.proto != IPPROTO_ESP) return -EINVAL; @@ -3168,8 +3203,8 @@ static int xfrm_send_mapping(struct xfrm_state *x, xfrm_address_t *ipaddr, if (skb == NULL) return -ENOMEM; - if (build_mapping(skb, x, ipaddr, sport) < 0) - BUG(); + err = build_mapping(skb, x, ipaddr, sport); + BUG_ON(err < 0); return xfrm_nlmsg_multicast(net, skb, 0, XFRMNLGRP_MAPPING); } |