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Diffstat (limited to 'net/rxrpc/sendmsg.c')
-rw-r--r--net/rxrpc/sendmsg.c126
1 files changed, 78 insertions, 48 deletions
diff --git a/net/rxrpc/sendmsg.c b/net/rxrpc/sendmsg.c
index 7d2595582c09..09f2a3e05221 100644
--- a/net/rxrpc/sendmsg.c
+++ b/net/rxrpc/sendmsg.c
@@ -21,22 +21,6 @@
#include <net/af_rxrpc.h>
#include "ar-internal.h"
-enum rxrpc_command {
- RXRPC_CMD_SEND_DATA, /* send data message */
- RXRPC_CMD_SEND_ABORT, /* request abort generation */
- RXRPC_CMD_ACCEPT, /* [server] accept incoming call */
- RXRPC_CMD_REJECT_BUSY, /* [server] reject a call as busy */
-};
-
-struct rxrpc_send_params {
- s64 tx_total_len; /* Total Tx data length (if send data) */
- unsigned long user_call_ID; /* User's call ID */
- u32 abort_code; /* Abort code to Tx (if abort) */
- enum rxrpc_command command : 8; /* The command to implement */
- bool exclusive; /* Shared or exclusive call */
- bool upgrade; /* If the connection is upgradeable */
-};
-
/*
* Wait for space to appear in the Tx queue or a signal to occur.
*/
@@ -174,6 +158,7 @@ static void rxrpc_queue_packet(struct rxrpc_sock *rx, struct rxrpc_call *call,
rxrpc_notify_end_tx_t notify_end_tx)
{
struct rxrpc_skb_priv *sp = rxrpc_skb(skb);
+ unsigned long now;
rxrpc_seq_t seq = sp->hdr.seq;
int ret, ix;
u8 annotation = RXRPC_TX_ANNO_UNACK;
@@ -213,11 +198,11 @@ static void rxrpc_queue_packet(struct rxrpc_sock *rx, struct rxrpc_call *call,
break;
case RXRPC_CALL_SERVER_ACK_REQUEST:
call->state = RXRPC_CALL_SERVER_SEND_REPLY;
- call->ack_at = call->expire_at;
+ now = jiffies;
+ WRITE_ONCE(call->ack_at, now + MAX_JIFFY_OFFSET);
if (call->ackr_reason == RXRPC_ACK_DELAY)
call->ackr_reason = 0;
- __rxrpc_set_timer(call, rxrpc_timer_init_for_send_reply,
- ktime_get_real());
+ trace_rxrpc_timer(call, rxrpc_timer_init_for_send_reply, now);
if (!last)
break;
/* Fall through */
@@ -239,14 +224,19 @@ static void rxrpc_queue_packet(struct rxrpc_sock *rx, struct rxrpc_call *call,
_debug("need instant resend %d", ret);
rxrpc_instant_resend(call, ix);
} else {
- ktime_t now = ktime_get_real(), resend_at;
-
- resend_at = ktime_add_ms(now, rxrpc_resend_timeout);
-
- if (ktime_before(resend_at, call->resend_at)) {
- call->resend_at = resend_at;
- rxrpc_set_timer(call, rxrpc_timer_set_for_send, now);
- }
+ unsigned long now = jiffies, resend_at;
+
+ if (call->peer->rtt_usage > 1)
+ resend_at = nsecs_to_jiffies(call->peer->rtt * 3 / 2);
+ else
+ resend_at = rxrpc_resend_timeout;
+ if (resend_at < 1)
+ resend_at = 1;
+
+ resend_at += now;
+ WRITE_ONCE(call->resend_at, resend_at);
+ rxrpc_reduce_call_timer(call, resend_at, now,
+ rxrpc_timer_set_for_send);
}
rxrpc_free_skb(skb, rxrpc_skb_tx_freed);
@@ -295,7 +285,7 @@ static int rxrpc_send_data(struct rxrpc_sock *rx,
do {
/* Check to see if there's a ping ACK to reply to. */
if (call->ackr_reason == RXRPC_ACK_PING_RESPONSE)
- rxrpc_send_ack_packet(call, false);
+ rxrpc_send_ack_packet(call, false, NULL);
if (!skb) {
size_t size, chunk, max, space;
@@ -480,11 +470,11 @@ static int rxrpc_sendmsg_cmsg(struct msghdr *msg, struct rxrpc_send_params *p)
if (msg->msg_flags & MSG_CMSG_COMPAT) {
if (len != sizeof(u32))
return -EINVAL;
- p->user_call_ID = *(u32 *)CMSG_DATA(cmsg);
+ p->call.user_call_ID = *(u32 *)CMSG_DATA(cmsg);
} else {
if (len != sizeof(unsigned long))
return -EINVAL;
- p->user_call_ID = *(unsigned long *)
+ p->call.user_call_ID = *(unsigned long *)
CMSG_DATA(cmsg);
}
got_user_ID = true;
@@ -522,11 +512,24 @@ static int rxrpc_sendmsg_cmsg(struct msghdr *msg, struct rxrpc_send_params *p)
break;
case RXRPC_TX_LENGTH:
- if (p->tx_total_len != -1 || len != sizeof(__s64))
+ if (p->call.tx_total_len != -1 || len != sizeof(__s64))
+ return -EINVAL;
+ p->call.tx_total_len = *(__s64 *)CMSG_DATA(cmsg);
+ if (p->call.tx_total_len < 0)
return -EINVAL;
- p->tx_total_len = *(__s64 *)CMSG_DATA(cmsg);
- if (p->tx_total_len < 0)
+ break;
+
+ case RXRPC_SET_CALL_TIMEOUT:
+ if (len & 3 || len < 4 || len > 12)
return -EINVAL;
+ memcpy(&p->call.timeouts, CMSG_DATA(cmsg), len);
+ p->call.nr_timeouts = len / 4;
+ if (p->call.timeouts.hard > INT_MAX / HZ)
+ return -ERANGE;
+ if (p->call.nr_timeouts >= 2 && p->call.timeouts.idle > 60 * 60 * 1000)
+ return -ERANGE;
+ if (p->call.nr_timeouts >= 3 && p->call.timeouts.normal > 60 * 60 * 1000)
+ return -ERANGE;
break;
default:
@@ -536,7 +539,7 @@ static int rxrpc_sendmsg_cmsg(struct msghdr *msg, struct rxrpc_send_params *p)
if (!got_user_ID)
return -EINVAL;
- if (p->tx_total_len != -1 && p->command != RXRPC_CMD_SEND_DATA)
+ if (p->call.tx_total_len != -1 && p->command != RXRPC_CMD_SEND_DATA)
return -EINVAL;
_leave(" = 0");
return 0;
@@ -576,8 +579,7 @@ rxrpc_new_client_call_for_sendmsg(struct rxrpc_sock *rx, struct msghdr *msg,
cp.exclusive = rx->exclusive | p->exclusive;
cp.upgrade = p->upgrade;
cp.service_id = srx->srx_service;
- call = rxrpc_new_client_call(rx, &cp, srx, p->user_call_ID,
- p->tx_total_len, GFP_KERNEL);
+ call = rxrpc_new_client_call(rx, &cp, srx, &p->call, GFP_KERNEL);
/* The socket is now unlocked */
_leave(" = %p\n", call);
@@ -594,15 +596,17 @@ int rxrpc_do_sendmsg(struct rxrpc_sock *rx, struct msghdr *msg, size_t len)
{
enum rxrpc_call_state state;
struct rxrpc_call *call;
+ unsigned long now, j;
int ret;
struct rxrpc_send_params p = {
- .tx_total_len = -1,
- .user_call_ID = 0,
- .abort_code = 0,
- .command = RXRPC_CMD_SEND_DATA,
- .exclusive = false,
- .upgrade = true,
+ .call.tx_total_len = -1,
+ .call.user_call_ID = 0,
+ .call.nr_timeouts = 0,
+ .abort_code = 0,
+ .command = RXRPC_CMD_SEND_DATA,
+ .exclusive = false,
+ .upgrade = false,
};
_enter("");
@@ -615,15 +619,15 @@ int rxrpc_do_sendmsg(struct rxrpc_sock *rx, struct msghdr *msg, size_t len)
ret = -EINVAL;
if (rx->sk.sk_state != RXRPC_SERVER_LISTENING)
goto error_release_sock;
- call = rxrpc_accept_call(rx, p.user_call_ID, NULL);
+ call = rxrpc_accept_call(rx, p.call.user_call_ID, NULL);
/* The socket is now unlocked. */
if (IS_ERR(call))
return PTR_ERR(call);
- rxrpc_put_call(call, rxrpc_call_put);
- return 0;
+ ret = 0;
+ goto out_put_unlock;
}
- call = rxrpc_find_call_by_user_ID(rx, p.user_call_ID);
+ call = rxrpc_find_call_by_user_ID(rx, p.call.user_call_ID);
if (!call) {
ret = -EBADSLT;
if (p.command != RXRPC_CMD_SEND_DATA)
@@ -653,14 +657,39 @@ int rxrpc_do_sendmsg(struct rxrpc_sock *rx, struct msghdr *msg, size_t len)
goto error_put;
}
- if (p.tx_total_len != -1) {
+ if (p.call.tx_total_len != -1) {
ret = -EINVAL;
if (call->tx_total_len != -1 ||
call->tx_pending ||
call->tx_top != 0)
goto error_put;
- call->tx_total_len = p.tx_total_len;
+ call->tx_total_len = p.call.tx_total_len;
+ }
+ }
+
+ switch (p.call.nr_timeouts) {
+ case 3:
+ j = msecs_to_jiffies(p.call.timeouts.normal);
+ if (p.call.timeouts.normal > 0 && j == 0)
+ j = 1;
+ WRITE_ONCE(call->next_rx_timo, j);
+ /* Fall through */
+ case 2:
+ j = msecs_to_jiffies(p.call.timeouts.idle);
+ if (p.call.timeouts.idle > 0 && j == 0)
+ j = 1;
+ WRITE_ONCE(call->next_req_timo, j);
+ /* Fall through */
+ case 1:
+ if (p.call.timeouts.hard > 0) {
+ j = msecs_to_jiffies(p.call.timeouts.hard);
+ now = jiffies;
+ j += now;
+ WRITE_ONCE(call->expect_term_by, j);
+ rxrpc_reduce_call_timer(call, j, now,
+ rxrpc_timer_set_for_hard);
}
+ break;
}
state = READ_ONCE(call->state);
@@ -689,6 +718,7 @@ int rxrpc_do_sendmsg(struct rxrpc_sock *rx, struct msghdr *msg, size_t len)
ret = rxrpc_send_data(rx, call, msg, len, NULL);
}
+out_put_unlock:
mutex_unlock(&call->user_mutex);
error_put:
rxrpc_put_call(call, rxrpc_call_put);
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