Commit | Line | Data |
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17926a79 DH |
1 | /* connection-level event handling |
2 | * | |
3 | * Copyright (C) 2007 Red Hat, Inc. All Rights Reserved. | |
4 | * Written by David Howells (dhowells@redhat.com) | |
5 | * | |
6 | * This program is free software; you can redistribute it and/or | |
7 | * modify it under the terms of the GNU General Public License | |
8 | * as published by the Free Software Foundation; either version | |
9 | * 2 of the License, or (at your option) any later version. | |
10 | */ | |
11 | ||
9b6d5398 JP |
12 | #define pr_fmt(fmt) KBUILD_MODNAME ": " fmt |
13 | ||
17926a79 DH |
14 | #include <linux/module.h> |
15 | #include <linux/net.h> | |
16 | #include <linux/skbuff.h> | |
17 | #include <linux/errqueue.h> | |
17926a79 DH |
18 | #include <net/sock.h> |
19 | #include <net/af_rxrpc.h> | |
20 | #include <net/ip.h> | |
21 | #include "ar-internal.h" | |
22 | ||
18bfeba5 DH |
23 | /* |
24 | * Retransmit terminal ACK or ABORT of the previous call. | |
25 | */ | |
f5c17aae | 26 | static void rxrpc_conn_retransmit_call(struct rxrpc_connection *conn, |
3136ef49 DH |
27 | struct sk_buff *skb, |
28 | unsigned int channel) | |
18bfeba5 | 29 | { |
3136ef49 | 30 | struct rxrpc_skb_priv *sp = skb ? rxrpc_skb(skb) : NULL; |
18bfeba5 DH |
31 | struct rxrpc_channel *chan; |
32 | struct msghdr msg; | |
5fc62f6a | 33 | struct kvec iov[3]; |
18bfeba5 DH |
34 | struct { |
35 | struct rxrpc_wire_header whdr; | |
36 | union { | |
5fc62f6a DH |
37 | __be32 abort_code; |
38 | struct rxrpc_ackpacket ack; | |
18bfeba5 DH |
39 | }; |
40 | } __attribute__((packed)) pkt; | |
5fc62f6a | 41 | struct rxrpc_ackinfo ack_info; |
18bfeba5 | 42 | size_t len; |
6b47fe1d | 43 | int ret, ioc; |
5fc62f6a | 44 | u32 serial, mtu, call_id, padding; |
18bfeba5 DH |
45 | |
46 | _enter("%d", conn->debug_id); | |
47 | ||
3136ef49 | 48 | chan = &conn->channels[channel]; |
18bfeba5 DH |
49 | |
50 | /* If the last call got moved on whilst we were waiting to run, just | |
51 | * ignore this packet. | |
52 | */ | |
53 | call_id = READ_ONCE(chan->last_call); | |
54 | /* Sync with __rxrpc_disconnect_call() */ | |
55 | smp_rmb(); | |
3136ef49 | 56 | if (skb && call_id != sp->hdr.callNumber) |
18bfeba5 DH |
57 | return; |
58 | ||
59 | msg.msg_name = &conn->params.peer->srx.transport; | |
60 | msg.msg_namelen = conn->params.peer->srx.transport_len; | |
61 | msg.msg_control = NULL; | |
62 | msg.msg_controllen = 0; | |
63 | msg.msg_flags = 0; | |
64 | ||
5fc62f6a DH |
65 | iov[0].iov_base = &pkt; |
66 | iov[0].iov_len = sizeof(pkt.whdr); | |
67 | iov[1].iov_base = &padding; | |
68 | iov[1].iov_len = 3; | |
69 | iov[2].iov_base = &ack_info; | |
70 | iov[2].iov_len = sizeof(ack_info); | |
71 | ||
3136ef49 | 72 | pkt.whdr.epoch = htonl(conn->proto.epoch); |
fb1967a6 | 73 | pkt.whdr.cid = htonl(conn->proto.cid | channel); |
3136ef49 | 74 | pkt.whdr.callNumber = htonl(call_id); |
18bfeba5 DH |
75 | pkt.whdr.seq = 0; |
76 | pkt.whdr.type = chan->last_type; | |
77 | pkt.whdr.flags = conn->out_clientflag; | |
78 | pkt.whdr.userStatus = 0; | |
79 | pkt.whdr.securityIndex = conn->security_ix; | |
80 | pkt.whdr._rsvd = 0; | |
68d6d1ae | 81 | pkt.whdr.serviceId = htons(conn->service_id); |
18bfeba5 DH |
82 | |
83 | len = sizeof(pkt.whdr); | |
84 | switch (chan->last_type) { | |
85 | case RXRPC_PACKET_TYPE_ABORT: | |
5fc62f6a DH |
86 | pkt.abort_code = htonl(chan->last_abort); |
87 | iov[0].iov_len += sizeof(pkt.abort_code); | |
88 | len += sizeof(pkt.abort_code); | |
89 | ioc = 1; | |
18bfeba5 DH |
90 | break; |
91 | ||
92 | case RXRPC_PACKET_TYPE_ACK: | |
93 | mtu = conn->params.peer->if_mtu; | |
94 | mtu -= conn->params.peer->hdrsize; | |
95 | pkt.ack.bufferSpace = 0; | |
3136ef49 DH |
96 | pkt.ack.maxSkew = htons(skb ? skb->priority : 0); |
97 | pkt.ack.firstPacket = htonl(chan->last_seq + 1); | |
98 | pkt.ack.previousPacket = htonl(chan->last_seq); | |
99 | pkt.ack.serial = htonl(skb ? sp->hdr.serial : 0); | |
100 | pkt.ack.reason = skb ? RXRPC_ACK_DUPLICATE : RXRPC_ACK_IDLE; | |
18bfeba5 | 101 | pkt.ack.nAcks = 0; |
5fc62f6a DH |
102 | ack_info.rxMTU = htonl(rxrpc_rx_mtu); |
103 | ack_info.maxMTU = htonl(mtu); | |
104 | ack_info.rwind = htonl(rxrpc_rx_window_size); | |
105 | ack_info.jumbo_max = htonl(rxrpc_rx_jumbo_max); | |
57494343 | 106 | pkt.whdr.flags |= RXRPC_SLOW_START_OK; |
5fc62f6a DH |
107 | padding = 0; |
108 | iov[0].iov_len += sizeof(pkt.ack); | |
109 | len += sizeof(pkt.ack) + 3 + sizeof(ack_info); | |
110 | ioc = 3; | |
18bfeba5 | 111 | break; |
5fc62f6a DH |
112 | |
113 | default: | |
114 | return; | |
18bfeba5 DH |
115 | } |
116 | ||
117 | /* Resync with __rxrpc_disconnect_call() and check that the last call | |
118 | * didn't get advanced whilst we were filling out the packets. | |
119 | */ | |
120 | smp_rmb(); | |
121 | if (READ_ONCE(chan->last_call) != call_id) | |
122 | return; | |
123 | ||
18bfeba5 DH |
124 | serial = atomic_inc_return(&conn->serial); |
125 | pkt.whdr.serial = htonl(serial); | |
126 | ||
127 | switch (chan->last_type) { | |
128 | case RXRPC_PACKET_TYPE_ABORT: | |
64753092 | 129 | _proto("Tx ABORT %%%u { %d } [re]", serial, conn->abort_code); |
18bfeba5 DH |
130 | break; |
131 | case RXRPC_PACKET_TYPE_ACK: | |
4764c0da | 132 | trace_rxrpc_tx_ack(chan->call_debug_id, serial, |
f3f8337c DH |
133 | ntohl(pkt.ack.firstPacket), |
134 | ntohl(pkt.ack.serial), | |
135 | pkt.ack.reason, 0); | |
18bfeba5 DH |
136 | _proto("Tx ACK %%%u [re]", serial); |
137 | break; | |
138 | } | |
139 | ||
6b47fe1d | 140 | ret = kernel_sendmsg(conn->params.local->socket, &msg, iov, ioc, len); |
330bdcfa | 141 | conn->params.peer->last_tx_at = ktime_get_seconds(); |
6b47fe1d | 142 | if (ret < 0) |
4764c0da DH |
143 | trace_rxrpc_tx_fail(chan->call_debug_id, serial, ret, |
144 | rxrpc_tx_point_call_final_resend); | |
145 | else | |
146 | trace_rxrpc_tx_packet(chan->call_debug_id, &pkt.whdr, | |
147 | rxrpc_tx_point_call_final_resend); | |
6b47fe1d | 148 | |
18bfeba5 | 149 | _leave(""); |
18bfeba5 DH |
150 | } |
151 | ||
17926a79 DH |
152 | /* |
153 | * pass a connection-level abort onto all calls on that connection | |
154 | */ | |
f5c17aae | 155 | static void rxrpc_abort_calls(struct rxrpc_connection *conn, |
64753092 | 156 | enum rxrpc_call_completion compl) |
17926a79 DH |
157 | { |
158 | struct rxrpc_call *call; | |
248f219c | 159 | int i; |
17926a79 | 160 | |
64753092 | 161 | _enter("{%d},%x", conn->debug_id, conn->abort_code); |
17926a79 | 162 | |
a1399f8b | 163 | spin_lock(&conn->channel_lock); |
17926a79 | 164 | |
a1399f8b DH |
165 | for (i = 0; i < RXRPC_MAXCALLS; i++) { |
166 | call = rcu_dereference_protected( | |
167 | conn->channels[i].call, | |
168 | lockdep_is_held(&conn->channel_lock)); | |
ccbd3dbe | 169 | if (call) { |
5a42976d | 170 | if (compl == RXRPC_CALL_LOCALLY_ABORTED) |
a25e21f0 DH |
171 | trace_rxrpc_abort(call->debug_id, |
172 | "CON", call->cid, | |
5a42976d | 173 | call->call_id, 0, |
64753092 DH |
174 | conn->abort_code, |
175 | conn->error); | |
248f219c | 176 | if (rxrpc_set_call_completion(call, compl, |
64753092 DH |
177 | conn->abort_code, |
178 | conn->error)) | |
248f219c | 179 | rxrpc_notify_socket(call); |
17926a79 | 180 | } |
17926a79 DH |
181 | } |
182 | ||
a1399f8b | 183 | spin_unlock(&conn->channel_lock); |
17926a79 DH |
184 | _leave(""); |
185 | } | |
186 | ||
187 | /* | |
188 | * generate a connection-level abort | |
189 | */ | |
190 | static int rxrpc_abort_connection(struct rxrpc_connection *conn, | |
3a92789a | 191 | int error, u32 abort_code) |
17926a79 | 192 | { |
0d12f8a4 | 193 | struct rxrpc_wire_header whdr; |
17926a79 DH |
194 | struct msghdr msg; |
195 | struct kvec iov[2]; | |
196 | __be32 word; | |
197 | size_t len; | |
0d12f8a4 | 198 | u32 serial; |
17926a79 DH |
199 | int ret; |
200 | ||
201 | _enter("%d,,%u,%u", conn->debug_id, error, abort_code); | |
202 | ||
203 | /* generate a connection-level abort */ | |
204 | spin_lock_bh(&conn->state_lock); | |
f5c17aae | 205 | if (conn->state >= RXRPC_CONN_REMOTELY_ABORTED) { |
17926a79 DH |
206 | spin_unlock_bh(&conn->state_lock); |
207 | _leave(" = 0 [already dead]"); | |
208 | return 0; | |
209 | } | |
210 | ||
64753092 DH |
211 | conn->error = error; |
212 | conn->abort_code = abort_code; | |
f5c17aae DH |
213 | conn->state = RXRPC_CONN_LOCALLY_ABORTED; |
214 | spin_unlock_bh(&conn->state_lock); | |
215 | ||
64753092 | 216 | rxrpc_abort_calls(conn, RXRPC_CALL_LOCALLY_ABORTED); |
17926a79 | 217 | |
85f32278 DH |
218 | msg.msg_name = &conn->params.peer->srx.transport; |
219 | msg.msg_namelen = conn->params.peer->srx.transport_len; | |
17926a79 DH |
220 | msg.msg_control = NULL; |
221 | msg.msg_controllen = 0; | |
222 | msg.msg_flags = 0; | |
223 | ||
19ffa01c DH |
224 | whdr.epoch = htonl(conn->proto.epoch); |
225 | whdr.cid = htonl(conn->proto.cid); | |
0d12f8a4 DH |
226 | whdr.callNumber = 0; |
227 | whdr.seq = 0; | |
228 | whdr.type = RXRPC_PACKET_TYPE_ABORT; | |
229 | whdr.flags = conn->out_clientflag; | |
230 | whdr.userStatus = 0; | |
231 | whdr.securityIndex = conn->security_ix; | |
232 | whdr._rsvd = 0; | |
68d6d1ae | 233 | whdr.serviceId = htons(conn->service_id); |
17926a79 | 234 | |
64753092 | 235 | word = htonl(conn->abort_code); |
17926a79 | 236 | |
0d12f8a4 DH |
237 | iov[0].iov_base = &whdr; |
238 | iov[0].iov_len = sizeof(whdr); | |
17926a79 DH |
239 | iov[1].iov_base = &word; |
240 | iov[1].iov_len = sizeof(word); | |
241 | ||
242 | len = iov[0].iov_len + iov[1].iov_len; | |
243 | ||
0d12f8a4 DH |
244 | serial = atomic_inc_return(&conn->serial); |
245 | whdr.serial = htonl(serial); | |
64753092 | 246 | _proto("Tx CONN ABORT %%%u { %d }", serial, conn->abort_code); |
17926a79 | 247 | |
85f32278 | 248 | ret = kernel_sendmsg(conn->params.local->socket, &msg, iov, 2, len); |
17926a79 | 249 | if (ret < 0) { |
6b47fe1d | 250 | trace_rxrpc_tx_fail(conn->debug_id, serial, ret, |
4764c0da | 251 | rxrpc_tx_point_conn_abort); |
17926a79 DH |
252 | _debug("sendmsg failed: %d", ret); |
253 | return -EAGAIN; | |
254 | } | |
255 | ||
4764c0da DH |
256 | trace_rxrpc_tx_packet(conn->debug_id, &whdr, rxrpc_tx_point_conn_abort); |
257 | ||
330bdcfa | 258 | conn->params.peer->last_tx_at = ktime_get_seconds(); |
ace45bec | 259 | |
17926a79 DH |
260 | _leave(" = 0"); |
261 | return 0; | |
262 | } | |
263 | ||
264 | /* | |
265 | * mark a call as being on a now-secured channel | |
248f219c | 266 | * - must be called with BH's disabled. |
17926a79 | 267 | */ |
5eaa65b2 | 268 | static void rxrpc_call_is_secure(struct rxrpc_call *call) |
17926a79 DH |
269 | { |
270 | _enter("%p", call); | |
271 | if (call) { | |
248f219c DH |
272 | write_lock_bh(&call->state_lock); |
273 | if (call->state == RXRPC_CALL_SERVER_SECURING) { | |
274 | call->state = RXRPC_CALL_SERVER_ACCEPTING; | |
275 | rxrpc_notify_socket(call); | |
276 | } | |
277 | write_unlock_bh(&call->state_lock); | |
17926a79 DH |
278 | } |
279 | } | |
280 | ||
281 | /* | |
282 | * connection-level Rx packet processor | |
283 | */ | |
284 | static int rxrpc_process_event(struct rxrpc_connection *conn, | |
285 | struct sk_buff *skb, | |
286 | u32 *_abort_code) | |
287 | { | |
288 | struct rxrpc_skb_priv *sp = rxrpc_skb(skb); | |
0d12f8a4 DH |
289 | __be32 wtmp; |
290 | u32 abort_code; | |
17926a79 DH |
291 | int loop, ret; |
292 | ||
519d2567 | 293 | if (conn->state >= RXRPC_CONN_REMOTELY_ABORTED) { |
248f219c | 294 | _leave(" = -ECONNABORTED [%u]", conn->state); |
17926a79 | 295 | return -ECONNABORTED; |
519d2567 | 296 | } |
17926a79 | 297 | |
0d12f8a4 | 298 | _enter("{%d},{%u,%%%u},", conn->debug_id, sp->hdr.type, sp->hdr.serial); |
519d2567 | 299 | |
17926a79 | 300 | switch (sp->hdr.type) { |
18bfeba5 DH |
301 | case RXRPC_PACKET_TYPE_DATA: |
302 | case RXRPC_PACKET_TYPE_ACK: | |
3136ef49 DH |
303 | rxrpc_conn_retransmit_call(conn, skb, |
304 | sp->hdr.cid & RXRPC_CHANNELMASK); | |
18bfeba5 DH |
305 | return 0; |
306 | ||
4d4a6ac7 DH |
307 | case RXRPC_PACKET_TYPE_BUSY: |
308 | /* Just ignore BUSY packets for now. */ | |
309 | return 0; | |
310 | ||
17926a79 | 311 | case RXRPC_PACKET_TYPE_ABORT: |
775e5b71 | 312 | if (skb_copy_bits(skb, sizeof(struct rxrpc_wire_header), |
fb46f6ee DH |
313 | &wtmp, sizeof(wtmp)) < 0) { |
314 | trace_rxrpc_rx_eproto(NULL, sp->hdr.serial, | |
315 | tracepoint_string("bad_abort")); | |
17926a79 | 316 | return -EPROTO; |
fb46f6ee | 317 | } |
0d12f8a4 DH |
318 | abort_code = ntohl(wtmp); |
319 | _proto("Rx ABORT %%%u { ac=%d }", sp->hdr.serial, abort_code); | |
17926a79 | 320 | |
64753092 DH |
321 | conn->error = -ECONNABORTED; |
322 | conn->abort_code = abort_code; | |
17926a79 | 323 | conn->state = RXRPC_CONN_REMOTELY_ABORTED; |
64753092 | 324 | rxrpc_abort_calls(conn, RXRPC_CALL_REMOTELY_ABORTED); |
17926a79 DH |
325 | return -ECONNABORTED; |
326 | ||
327 | case RXRPC_PACKET_TYPE_CHALLENGE: | |
e0e4d82f DH |
328 | return conn->security->respond_to_challenge(conn, skb, |
329 | _abort_code); | |
17926a79 DH |
330 | |
331 | case RXRPC_PACKET_TYPE_RESPONSE: | |
17926a79 DH |
332 | ret = conn->security->verify_response(conn, skb, _abort_code); |
333 | if (ret < 0) | |
334 | return ret; | |
335 | ||
336 | ret = conn->security->init_connection_security(conn); | |
337 | if (ret < 0) | |
338 | return ret; | |
339 | ||
a263629d HX |
340 | ret = conn->security->prime_packet_security(conn); |
341 | if (ret < 0) | |
342 | return ret; | |
343 | ||
a1399f8b | 344 | spin_lock(&conn->channel_lock); |
17926a79 DH |
345 | spin_lock(&conn->state_lock); |
346 | ||
bba304db DH |
347 | if (conn->state == RXRPC_CONN_SERVICE_CHALLENGING) { |
348 | conn->state = RXRPC_CONN_SERVICE; | |
248f219c | 349 | spin_unlock(&conn->state_lock); |
17926a79 | 350 | for (loop = 0; loop < RXRPC_MAXCALLS; loop++) |
dee46364 DH |
351 | rxrpc_call_is_secure( |
352 | rcu_dereference_protected( | |
a1399f8b DH |
353 | conn->channels[loop].call, |
354 | lockdep_is_held(&conn->channel_lock))); | |
248f219c DH |
355 | } else { |
356 | spin_unlock(&conn->state_lock); | |
17926a79 DH |
357 | } |
358 | ||
a1399f8b | 359 | spin_unlock(&conn->channel_lock); |
17926a79 DH |
360 | return 0; |
361 | ||
362 | default: | |
fb46f6ee DH |
363 | trace_rxrpc_rx_eproto(NULL, sp->hdr.serial, |
364 | tracepoint_string("bad_conn_pkt")); | |
17926a79 DH |
365 | return -EPROTO; |
366 | } | |
367 | } | |
368 | ||
369 | /* | |
370 | * set up security and issue a challenge | |
371 | */ | |
372 | static void rxrpc_secure_connection(struct rxrpc_connection *conn) | |
373 | { | |
374 | u32 abort_code; | |
375 | int ret; | |
376 | ||
377 | _enter("{%d}", conn->debug_id); | |
378 | ||
379 | ASSERT(conn->security_ix != 0); | |
380 | ||
19ffa01c | 381 | if (!conn->params.key) { |
17926a79 DH |
382 | _debug("set up security"); |
383 | ret = rxrpc_init_server_conn_security(conn); | |
384 | switch (ret) { | |
385 | case 0: | |
386 | break; | |
387 | case -ENOENT: | |
388 | abort_code = RX_CALL_DEAD; | |
389 | goto abort; | |
390 | default: | |
391 | abort_code = RXKADNOAUTH; | |
392 | goto abort; | |
393 | } | |
394 | } | |
395 | ||
17926a79 DH |
396 | if (conn->security->issue_challenge(conn) < 0) { |
397 | abort_code = RX_CALL_DEAD; | |
398 | ret = -ENOMEM; | |
399 | goto abort; | |
400 | } | |
401 | ||
402 | _leave(""); | |
403 | return; | |
404 | ||
405 | abort: | |
406 | _debug("abort %d, %d", ret, abort_code); | |
3a92789a | 407 | rxrpc_abort_connection(conn, ret, abort_code); |
17926a79 DH |
408 | _leave(" [aborted]"); |
409 | } | |
410 | ||
3136ef49 DH |
411 | /* |
412 | * Process delayed final ACKs that we haven't subsumed into a subsequent call. | |
413 | */ | |
414 | static void rxrpc_process_delayed_final_acks(struct rxrpc_connection *conn) | |
415 | { | |
416 | unsigned long j = jiffies, next_j; | |
417 | unsigned int channel; | |
418 | bool set; | |
419 | ||
420 | again: | |
421 | next_j = j + LONG_MAX; | |
422 | set = false; | |
423 | for (channel = 0; channel < RXRPC_MAXCALLS; channel++) { | |
424 | struct rxrpc_channel *chan = &conn->channels[channel]; | |
425 | unsigned long ack_at; | |
426 | ||
427 | if (!test_bit(RXRPC_CONN_FINAL_ACK_0 + channel, &conn->flags)) | |
428 | continue; | |
429 | ||
430 | smp_rmb(); /* vs rxrpc_disconnect_client_call */ | |
431 | ack_at = READ_ONCE(chan->final_ack_at); | |
432 | ||
433 | if (time_before(j, ack_at)) { | |
434 | if (time_before(ack_at, next_j)) { | |
435 | next_j = ack_at; | |
436 | set = true; | |
437 | } | |
438 | continue; | |
439 | } | |
440 | ||
441 | if (test_and_clear_bit(RXRPC_CONN_FINAL_ACK_0 + channel, | |
442 | &conn->flags)) | |
443 | rxrpc_conn_retransmit_call(conn, NULL, channel); | |
444 | } | |
445 | ||
446 | j = jiffies; | |
447 | if (time_before_eq(next_j, j)) | |
448 | goto again; | |
449 | if (set) | |
450 | rxrpc_reduce_conn_timer(conn, next_j); | |
451 | } | |
452 | ||
17926a79 DH |
453 | /* |
454 | * connection-level event processor | |
455 | */ | |
456 | void rxrpc_process_connection(struct work_struct *work) | |
457 | { | |
458 | struct rxrpc_connection *conn = | |
459 | container_of(work, struct rxrpc_connection, processor); | |
17926a79 DH |
460 | struct sk_buff *skb; |
461 | u32 abort_code = RX_PROTOCOL_ERROR; | |
462 | int ret; | |
463 | ||
363deeab | 464 | rxrpc_see_connection(conn); |
17926a79 | 465 | |
2c4579e4 | 466 | if (test_and_clear_bit(RXRPC_CONN_EV_CHALLENGE, &conn->events)) |
17926a79 | 467 | rxrpc_secure_connection(conn); |
17926a79 | 468 | |
3136ef49 DH |
469 | /* Process delayed ACKs whose time has come. */ |
470 | if (conn->flags & RXRPC_CONN_FINAL_ACK_MASK) | |
471 | rxrpc_process_delayed_final_acks(conn); | |
472 | ||
17926a79 DH |
473 | /* go through the conn-level event packets, releasing the ref on this |
474 | * connection that each one has when we've finished with it */ | |
475 | while ((skb = skb_dequeue(&conn->rx_queue))) { | |
71f3ca40 | 476 | rxrpc_see_skb(skb, rxrpc_skb_rx_seen); |
17926a79 DH |
477 | ret = rxrpc_process_event(conn, skb, &abort_code); |
478 | switch (ret) { | |
479 | case -EPROTO: | |
480 | case -EKEYEXPIRED: | |
481 | case -EKEYREJECTED: | |
482 | goto protocol_error; | |
8c2f826d | 483 | case -ENOMEM: |
17926a79 DH |
484 | case -EAGAIN: |
485 | goto requeue_and_leave; | |
486 | case -ECONNABORTED: | |
487 | default: | |
71f3ca40 | 488 | rxrpc_free_skb(skb, rxrpc_skb_rx_freed); |
17926a79 DH |
489 | break; |
490 | } | |
491 | } | |
492 | ||
493 | out: | |
494 | rxrpc_put_connection(conn); | |
495 | _leave(""); | |
496 | return; | |
497 | ||
498 | requeue_and_leave: | |
499 | skb_queue_head(&conn->rx_queue, skb); | |
500 | goto out; | |
501 | ||
502 | protocol_error: | |
3a92789a | 503 | if (rxrpc_abort_connection(conn, ret, abort_code) < 0) |
17926a79 | 504 | goto requeue_and_leave; |
71f3ca40 | 505 | rxrpc_free_skb(skb, rxrpc_skb_rx_freed); |
17926a79 DH |
506 | goto out; |
507 | } |