18c3e34a4SDavid Howells /* connection-level event handling 28c3e34a4SDavid Howells * 38c3e34a4SDavid Howells * Copyright (C) 2007 Red Hat, Inc. All Rights Reserved. 48c3e34a4SDavid Howells * Written by David Howells (dhowells@redhat.com) 58c3e34a4SDavid Howells * 68c3e34a4SDavid Howells * This program is free software; you can redistribute it and/or 78c3e34a4SDavid Howells * modify it under the terms of the GNU General Public License 88c3e34a4SDavid Howells * as published by the Free Software Foundation; either version 98c3e34a4SDavid Howells * 2 of the License, or (at your option) any later version. 108c3e34a4SDavid Howells */ 118c3e34a4SDavid Howells 128c3e34a4SDavid Howells #define pr_fmt(fmt) KBUILD_MODNAME ": " fmt 138c3e34a4SDavid Howells 148c3e34a4SDavid Howells #include <linux/module.h> 158c3e34a4SDavid Howells #include <linux/net.h> 168c3e34a4SDavid Howells #include <linux/skbuff.h> 178c3e34a4SDavid Howells #include <linux/errqueue.h> 188c3e34a4SDavid Howells #include <linux/udp.h> 198c3e34a4SDavid Howells #include <linux/in.h> 208c3e34a4SDavid Howells #include <linux/in6.h> 218c3e34a4SDavid Howells #include <linux/icmp.h> 228c3e34a4SDavid Howells #include <net/sock.h> 238c3e34a4SDavid Howells #include <net/af_rxrpc.h> 248c3e34a4SDavid Howells #include <net/ip.h> 258c3e34a4SDavid Howells #include "ar-internal.h" 268c3e34a4SDavid Howells 278c3e34a4SDavid Howells /* 288c3e34a4SDavid Howells * pass a connection-level abort onto all calls on that connection 298c3e34a4SDavid Howells */ 308c3e34a4SDavid Howells static void rxrpc_abort_calls(struct rxrpc_connection *conn, int state, 318c3e34a4SDavid Howells u32 abort_code) 328c3e34a4SDavid Howells { 338c3e34a4SDavid Howells struct rxrpc_call *call; 348c3e34a4SDavid Howells struct rb_node *p; 358c3e34a4SDavid Howells 368c3e34a4SDavid Howells _enter("{%d},%x", conn->debug_id, abort_code); 378c3e34a4SDavid Howells 388c3e34a4SDavid Howells read_lock_bh(&conn->lock); 398c3e34a4SDavid Howells 408c3e34a4SDavid Howells for (p = rb_first(&conn->calls); p; p = rb_next(p)) { 418c3e34a4SDavid Howells call = rb_entry(p, struct rxrpc_call, conn_node); 428c3e34a4SDavid Howells write_lock(&call->state_lock); 438c3e34a4SDavid Howells if (call->state <= RXRPC_CALL_COMPLETE) { 448c3e34a4SDavid Howells call->state = state; 458c3e34a4SDavid Howells if (state == RXRPC_CALL_LOCALLY_ABORTED) { 468c3e34a4SDavid Howells call->local_abort = conn->local_abort; 478c3e34a4SDavid Howells set_bit(RXRPC_CALL_EV_CONN_ABORT, &call->events); 488c3e34a4SDavid Howells } else { 498c3e34a4SDavid Howells call->remote_abort = conn->remote_abort; 508c3e34a4SDavid Howells set_bit(RXRPC_CALL_EV_RCVD_ABORT, &call->events); 518c3e34a4SDavid Howells } 528c3e34a4SDavid Howells rxrpc_queue_call(call); 538c3e34a4SDavid Howells } 548c3e34a4SDavid Howells write_unlock(&call->state_lock); 558c3e34a4SDavid Howells } 568c3e34a4SDavid Howells 578c3e34a4SDavid Howells read_unlock_bh(&conn->lock); 588c3e34a4SDavid Howells _leave(""); 598c3e34a4SDavid Howells } 608c3e34a4SDavid Howells 618c3e34a4SDavid Howells /* 628c3e34a4SDavid Howells * generate a connection-level abort 638c3e34a4SDavid Howells */ 648c3e34a4SDavid Howells static int rxrpc_abort_connection(struct rxrpc_connection *conn, 658c3e34a4SDavid Howells u32 error, u32 abort_code) 668c3e34a4SDavid Howells { 678c3e34a4SDavid Howells struct rxrpc_wire_header whdr; 688c3e34a4SDavid Howells struct msghdr msg; 698c3e34a4SDavid Howells struct kvec iov[2]; 708c3e34a4SDavid Howells __be32 word; 718c3e34a4SDavid Howells size_t len; 728c3e34a4SDavid Howells u32 serial; 738c3e34a4SDavid Howells int ret; 748c3e34a4SDavid Howells 758c3e34a4SDavid Howells _enter("%d,,%u,%u", conn->debug_id, error, abort_code); 768c3e34a4SDavid Howells 778c3e34a4SDavid Howells /* generate a connection-level abort */ 788c3e34a4SDavid Howells spin_lock_bh(&conn->state_lock); 798c3e34a4SDavid Howells if (conn->state < RXRPC_CONN_REMOTELY_ABORTED) { 808c3e34a4SDavid Howells conn->state = RXRPC_CONN_LOCALLY_ABORTED; 818c3e34a4SDavid Howells conn->error = error; 828c3e34a4SDavid Howells spin_unlock_bh(&conn->state_lock); 838c3e34a4SDavid Howells } else { 848c3e34a4SDavid Howells spin_unlock_bh(&conn->state_lock); 858c3e34a4SDavid Howells _leave(" = 0 [already dead]"); 868c3e34a4SDavid Howells return 0; 878c3e34a4SDavid Howells } 888c3e34a4SDavid Howells 898c3e34a4SDavid Howells rxrpc_abort_calls(conn, RXRPC_CALL_LOCALLY_ABORTED, abort_code); 908c3e34a4SDavid Howells 9185f32278SDavid Howells msg.msg_name = &conn->params.peer->srx.transport; 9285f32278SDavid Howells msg.msg_namelen = conn->params.peer->srx.transport_len; 938c3e34a4SDavid Howells msg.msg_control = NULL; 948c3e34a4SDavid Howells msg.msg_controllen = 0; 958c3e34a4SDavid Howells msg.msg_flags = 0; 968c3e34a4SDavid Howells 9719ffa01cSDavid Howells whdr.epoch = htonl(conn->proto.epoch); 9819ffa01cSDavid Howells whdr.cid = htonl(conn->proto.cid); 998c3e34a4SDavid Howells whdr.callNumber = 0; 1008c3e34a4SDavid Howells whdr.seq = 0; 1018c3e34a4SDavid Howells whdr.type = RXRPC_PACKET_TYPE_ABORT; 1028c3e34a4SDavid Howells whdr.flags = conn->out_clientflag; 1038c3e34a4SDavid Howells whdr.userStatus = 0; 1048c3e34a4SDavid Howells whdr.securityIndex = conn->security_ix; 1058c3e34a4SDavid Howells whdr._rsvd = 0; 10619ffa01cSDavid Howells whdr.serviceId = htons(conn->params.service_id); 1078c3e34a4SDavid Howells 1088c3e34a4SDavid Howells word = htonl(conn->local_abort); 1098c3e34a4SDavid Howells 1108c3e34a4SDavid Howells iov[0].iov_base = &whdr; 1118c3e34a4SDavid Howells iov[0].iov_len = sizeof(whdr); 1128c3e34a4SDavid Howells iov[1].iov_base = &word; 1138c3e34a4SDavid Howells iov[1].iov_len = sizeof(word); 1148c3e34a4SDavid Howells 1158c3e34a4SDavid Howells len = iov[0].iov_len + iov[1].iov_len; 1168c3e34a4SDavid Howells 1178c3e34a4SDavid Howells serial = atomic_inc_return(&conn->serial); 1188c3e34a4SDavid Howells whdr.serial = htonl(serial); 1198c3e34a4SDavid Howells _proto("Tx CONN ABORT %%%u { %d }", serial, conn->local_abort); 1208c3e34a4SDavid Howells 12185f32278SDavid Howells ret = kernel_sendmsg(conn->params.local->socket, &msg, iov, 2, len); 1228c3e34a4SDavid Howells if (ret < 0) { 1238c3e34a4SDavid Howells _debug("sendmsg failed: %d", ret); 1248c3e34a4SDavid Howells return -EAGAIN; 1258c3e34a4SDavid Howells } 1268c3e34a4SDavid Howells 1278c3e34a4SDavid Howells _leave(" = 0"); 1288c3e34a4SDavid Howells return 0; 1298c3e34a4SDavid Howells } 1308c3e34a4SDavid Howells 1318c3e34a4SDavid Howells /* 1328c3e34a4SDavid Howells * mark a call as being on a now-secured channel 1338c3e34a4SDavid Howells * - must be called with softirqs disabled 1348c3e34a4SDavid Howells */ 1358c3e34a4SDavid Howells static void rxrpc_call_is_secure(struct rxrpc_call *call) 1368c3e34a4SDavid Howells { 1378c3e34a4SDavid Howells _enter("%p", call); 1388c3e34a4SDavid Howells if (call) { 1398c3e34a4SDavid Howells read_lock(&call->state_lock); 1408c3e34a4SDavid Howells if (call->state < RXRPC_CALL_COMPLETE && 1418c3e34a4SDavid Howells !test_and_set_bit(RXRPC_CALL_EV_SECURED, &call->events)) 1428c3e34a4SDavid Howells rxrpc_queue_call(call); 1438c3e34a4SDavid Howells read_unlock(&call->state_lock); 1448c3e34a4SDavid Howells } 1458c3e34a4SDavid Howells } 1468c3e34a4SDavid Howells 1478c3e34a4SDavid Howells /* 1488c3e34a4SDavid Howells * connection-level Rx packet processor 1498c3e34a4SDavid Howells */ 1508c3e34a4SDavid Howells static int rxrpc_process_event(struct rxrpc_connection *conn, 1518c3e34a4SDavid Howells struct sk_buff *skb, 1528c3e34a4SDavid Howells u32 *_abort_code) 1538c3e34a4SDavid Howells { 1548c3e34a4SDavid Howells struct rxrpc_skb_priv *sp = rxrpc_skb(skb); 1558c3e34a4SDavid Howells __be32 wtmp; 1568c3e34a4SDavid Howells u32 abort_code; 1578c3e34a4SDavid Howells int loop, ret; 1588c3e34a4SDavid Howells 1598c3e34a4SDavid Howells if (conn->state >= RXRPC_CONN_REMOTELY_ABORTED) { 1608c3e34a4SDavid Howells kleave(" = -ECONNABORTED [%u]", conn->state); 1618c3e34a4SDavid Howells return -ECONNABORTED; 1628c3e34a4SDavid Howells } 1638c3e34a4SDavid Howells 1648c3e34a4SDavid Howells _enter("{%d},{%u,%%%u},", conn->debug_id, sp->hdr.type, sp->hdr.serial); 1658c3e34a4SDavid Howells 1668c3e34a4SDavid Howells switch (sp->hdr.type) { 1678c3e34a4SDavid Howells case RXRPC_PACKET_TYPE_ABORT: 1688c3e34a4SDavid Howells if (skb_copy_bits(skb, 0, &wtmp, sizeof(wtmp)) < 0) 1698c3e34a4SDavid Howells return -EPROTO; 1708c3e34a4SDavid Howells abort_code = ntohl(wtmp); 1718c3e34a4SDavid Howells _proto("Rx ABORT %%%u { ac=%d }", sp->hdr.serial, abort_code); 1728c3e34a4SDavid Howells 1738c3e34a4SDavid Howells conn->state = RXRPC_CONN_REMOTELY_ABORTED; 1748c3e34a4SDavid Howells rxrpc_abort_calls(conn, RXRPC_CALL_REMOTELY_ABORTED, 1758c3e34a4SDavid Howells abort_code); 1768c3e34a4SDavid Howells return -ECONNABORTED; 1778c3e34a4SDavid Howells 1788c3e34a4SDavid Howells case RXRPC_PACKET_TYPE_CHALLENGE: 1798c3e34a4SDavid Howells return conn->security->respond_to_challenge(conn, skb, 1808c3e34a4SDavid Howells _abort_code); 1818c3e34a4SDavid Howells 1828c3e34a4SDavid Howells case RXRPC_PACKET_TYPE_RESPONSE: 1838c3e34a4SDavid Howells ret = conn->security->verify_response(conn, skb, _abort_code); 1848c3e34a4SDavid Howells if (ret < 0) 1858c3e34a4SDavid Howells return ret; 1868c3e34a4SDavid Howells 1878c3e34a4SDavid Howells ret = conn->security->init_connection_security(conn); 1888c3e34a4SDavid Howells if (ret < 0) 1898c3e34a4SDavid Howells return ret; 1908c3e34a4SDavid Howells 1918c3e34a4SDavid Howells conn->security->prime_packet_security(conn); 1928c3e34a4SDavid Howells read_lock_bh(&conn->lock); 1938c3e34a4SDavid Howells spin_lock(&conn->state_lock); 1948c3e34a4SDavid Howells 1958c3e34a4SDavid Howells if (conn->state == RXRPC_CONN_SERVER_CHALLENGING) { 1968c3e34a4SDavid Howells conn->state = RXRPC_CONN_SERVER; 1978c3e34a4SDavid Howells for (loop = 0; loop < RXRPC_MAXCALLS; loop++) 1988c3e34a4SDavid Howells rxrpc_call_is_secure(conn->channels[loop]); 1998c3e34a4SDavid Howells } 2008c3e34a4SDavid Howells 2018c3e34a4SDavid Howells spin_unlock(&conn->state_lock); 2028c3e34a4SDavid Howells read_unlock_bh(&conn->lock); 2038c3e34a4SDavid Howells return 0; 2048c3e34a4SDavid Howells 2058c3e34a4SDavid Howells default: 2068c3e34a4SDavid Howells _leave(" = -EPROTO [%u]", sp->hdr.type); 2078c3e34a4SDavid Howells return -EPROTO; 2088c3e34a4SDavid Howells } 2098c3e34a4SDavid Howells } 2108c3e34a4SDavid Howells 2118c3e34a4SDavid Howells /* 2128c3e34a4SDavid Howells * set up security and issue a challenge 2138c3e34a4SDavid Howells */ 2148c3e34a4SDavid Howells static void rxrpc_secure_connection(struct rxrpc_connection *conn) 2158c3e34a4SDavid Howells { 2168c3e34a4SDavid Howells u32 abort_code; 2178c3e34a4SDavid Howells int ret; 2188c3e34a4SDavid Howells 2198c3e34a4SDavid Howells _enter("{%d}", conn->debug_id); 2208c3e34a4SDavid Howells 2218c3e34a4SDavid Howells ASSERT(conn->security_ix != 0); 2228c3e34a4SDavid Howells 22319ffa01cSDavid Howells if (!conn->params.key) { 2248c3e34a4SDavid Howells _debug("set up security"); 2258c3e34a4SDavid Howells ret = rxrpc_init_server_conn_security(conn); 2268c3e34a4SDavid Howells switch (ret) { 2278c3e34a4SDavid Howells case 0: 2288c3e34a4SDavid Howells break; 2298c3e34a4SDavid Howells case -ENOENT: 2308c3e34a4SDavid Howells abort_code = RX_CALL_DEAD; 2318c3e34a4SDavid Howells goto abort; 2328c3e34a4SDavid Howells default: 2338c3e34a4SDavid Howells abort_code = RXKADNOAUTH; 2348c3e34a4SDavid Howells goto abort; 2358c3e34a4SDavid Howells } 2368c3e34a4SDavid Howells } 2378c3e34a4SDavid Howells 2388c3e34a4SDavid Howells if (conn->security->issue_challenge(conn) < 0) { 2398c3e34a4SDavid Howells abort_code = RX_CALL_DEAD; 2408c3e34a4SDavid Howells ret = -ENOMEM; 2418c3e34a4SDavid Howells goto abort; 2428c3e34a4SDavid Howells } 2438c3e34a4SDavid Howells 2448c3e34a4SDavid Howells _leave(""); 2458c3e34a4SDavid Howells return; 2468c3e34a4SDavid Howells 2478c3e34a4SDavid Howells abort: 2488c3e34a4SDavid Howells _debug("abort %d, %d", ret, abort_code); 2498c3e34a4SDavid Howells rxrpc_abort_connection(conn, -ret, abort_code); 2508c3e34a4SDavid Howells _leave(" [aborted]"); 2518c3e34a4SDavid Howells } 2528c3e34a4SDavid Howells 2538c3e34a4SDavid Howells /* 2548c3e34a4SDavid Howells * connection-level event processor 2558c3e34a4SDavid Howells */ 2568c3e34a4SDavid Howells void rxrpc_process_connection(struct work_struct *work) 2578c3e34a4SDavid Howells { 2588c3e34a4SDavid Howells struct rxrpc_connection *conn = 2598c3e34a4SDavid Howells container_of(work, struct rxrpc_connection, processor); 2608c3e34a4SDavid Howells struct sk_buff *skb; 2618c3e34a4SDavid Howells u32 abort_code = RX_PROTOCOL_ERROR; 2628c3e34a4SDavid Howells int ret; 2638c3e34a4SDavid Howells 2648c3e34a4SDavid Howells _enter("{%d}", conn->debug_id); 2658c3e34a4SDavid Howells 2665627cc8bSDavid Howells rxrpc_get_connection(conn); 2678c3e34a4SDavid Howells 2688c3e34a4SDavid Howells if (test_and_clear_bit(RXRPC_CONN_CHALLENGE, &conn->events)) { 2698c3e34a4SDavid Howells rxrpc_secure_connection(conn); 2708c3e34a4SDavid Howells rxrpc_put_connection(conn); 2718c3e34a4SDavid Howells } 2728c3e34a4SDavid Howells 2738c3e34a4SDavid Howells /* go through the conn-level event packets, releasing the ref on this 2748c3e34a4SDavid Howells * connection that each one has when we've finished with it */ 2758c3e34a4SDavid Howells while ((skb = skb_dequeue(&conn->rx_queue))) { 2768c3e34a4SDavid Howells ret = rxrpc_process_event(conn, skb, &abort_code); 2778c3e34a4SDavid Howells switch (ret) { 2788c3e34a4SDavid Howells case -EPROTO: 2798c3e34a4SDavid Howells case -EKEYEXPIRED: 2808c3e34a4SDavid Howells case -EKEYREJECTED: 2818c3e34a4SDavid Howells goto protocol_error; 2828c3e34a4SDavid Howells case -EAGAIN: 2838c3e34a4SDavid Howells goto requeue_and_leave; 2848c3e34a4SDavid Howells case -ECONNABORTED: 2858c3e34a4SDavid Howells default: 2868c3e34a4SDavid Howells rxrpc_put_connection(conn); 2878c3e34a4SDavid Howells rxrpc_free_skb(skb); 2888c3e34a4SDavid Howells break; 2898c3e34a4SDavid Howells } 2908c3e34a4SDavid Howells } 2918c3e34a4SDavid Howells 2928c3e34a4SDavid Howells out: 2938c3e34a4SDavid Howells rxrpc_put_connection(conn); 2948c3e34a4SDavid Howells _leave(""); 2958c3e34a4SDavid Howells return; 2968c3e34a4SDavid Howells 2978c3e34a4SDavid Howells requeue_and_leave: 2988c3e34a4SDavid Howells skb_queue_head(&conn->rx_queue, skb); 2998c3e34a4SDavid Howells goto out; 3008c3e34a4SDavid Howells 3018c3e34a4SDavid Howells protocol_error: 3028c3e34a4SDavid Howells if (rxrpc_abort_connection(conn, -ret, abort_code) < 0) 3038c3e34a4SDavid Howells goto requeue_and_leave; 3048c3e34a4SDavid Howells rxrpc_put_connection(conn); 3058c3e34a4SDavid Howells rxrpc_free_skb(skb); 3068c3e34a4SDavid Howells _leave(" [EPROTO]"); 3078c3e34a4SDavid Howells goto out; 3088c3e34a4SDavid Howells } 3098c3e34a4SDavid Howells 3108c3e34a4SDavid Howells /* 3118c3e34a4SDavid Howells * put a packet up for transport-level abort 3128c3e34a4SDavid Howells */ 3138c3e34a4SDavid Howells void rxrpc_reject_packet(struct rxrpc_local *local, struct sk_buff *skb) 3148c3e34a4SDavid Howells { 3158c3e34a4SDavid Howells CHECK_SLAB_OKAY(&local->usage); 3168c3e34a4SDavid Howells 3178c3e34a4SDavid Howells skb_queue_tail(&local->reject_queue, skb); 3184f95dd78SDavid Howells rxrpc_queue_work(&local->processor); 3198c3e34a4SDavid Howells } 3208c3e34a4SDavid Howells 3218c3e34a4SDavid Howells /* 3228c3e34a4SDavid Howells * reject packets through the local endpoint 3238c3e34a4SDavid Howells */ 3244f95dd78SDavid Howells void rxrpc_reject_packets(struct rxrpc_local *local) 3258c3e34a4SDavid Howells { 3268c3e34a4SDavid Howells union { 3278c3e34a4SDavid Howells struct sockaddr sa; 3288c3e34a4SDavid Howells struct sockaddr_in sin; 3298c3e34a4SDavid Howells } sa; 3308c3e34a4SDavid Howells struct rxrpc_skb_priv *sp; 3318c3e34a4SDavid Howells struct rxrpc_wire_header whdr; 3328c3e34a4SDavid Howells struct sk_buff *skb; 3338c3e34a4SDavid Howells struct msghdr msg; 3348c3e34a4SDavid Howells struct kvec iov[2]; 3358c3e34a4SDavid Howells size_t size; 3368c3e34a4SDavid Howells __be32 code; 3378c3e34a4SDavid Howells 3388c3e34a4SDavid Howells _enter("%d", local->debug_id); 3398c3e34a4SDavid Howells 3408c3e34a4SDavid Howells iov[0].iov_base = &whdr; 3418c3e34a4SDavid Howells iov[0].iov_len = sizeof(whdr); 3428c3e34a4SDavid Howells iov[1].iov_base = &code; 3438c3e34a4SDavid Howells iov[1].iov_len = sizeof(code); 3448c3e34a4SDavid Howells size = sizeof(whdr) + sizeof(code); 3458c3e34a4SDavid Howells 3468c3e34a4SDavid Howells msg.msg_name = &sa; 3478c3e34a4SDavid Howells msg.msg_control = NULL; 3488c3e34a4SDavid Howells msg.msg_controllen = 0; 3498c3e34a4SDavid Howells msg.msg_flags = 0; 3508c3e34a4SDavid Howells 3518c3e34a4SDavid Howells memset(&sa, 0, sizeof(sa)); 3528c3e34a4SDavid Howells sa.sa.sa_family = local->srx.transport.family; 3538c3e34a4SDavid Howells switch (sa.sa.sa_family) { 3548c3e34a4SDavid Howells case AF_INET: 3558c3e34a4SDavid Howells msg.msg_namelen = sizeof(sa.sin); 3568c3e34a4SDavid Howells break; 3578c3e34a4SDavid Howells default: 3588c3e34a4SDavid Howells msg.msg_namelen = 0; 3598c3e34a4SDavid Howells break; 3608c3e34a4SDavid Howells } 3618c3e34a4SDavid Howells 3628c3e34a4SDavid Howells memset(&whdr, 0, sizeof(whdr)); 3638c3e34a4SDavid Howells whdr.type = RXRPC_PACKET_TYPE_ABORT; 3648c3e34a4SDavid Howells 3658c3e34a4SDavid Howells while ((skb = skb_dequeue(&local->reject_queue))) { 3668c3e34a4SDavid Howells sp = rxrpc_skb(skb); 3678c3e34a4SDavid Howells switch (sa.sa.sa_family) { 3688c3e34a4SDavid Howells case AF_INET: 3698c3e34a4SDavid Howells sa.sin.sin_port = udp_hdr(skb)->source; 3708c3e34a4SDavid Howells sa.sin.sin_addr.s_addr = ip_hdr(skb)->saddr; 3718c3e34a4SDavid Howells code = htonl(skb->priority); 3728c3e34a4SDavid Howells 3738c3e34a4SDavid Howells whdr.epoch = htonl(sp->hdr.epoch); 3748c3e34a4SDavid Howells whdr.cid = htonl(sp->hdr.cid); 3758c3e34a4SDavid Howells whdr.callNumber = htonl(sp->hdr.callNumber); 3768c3e34a4SDavid Howells whdr.serviceId = htons(sp->hdr.serviceId); 3778c3e34a4SDavid Howells whdr.flags = sp->hdr.flags; 3788c3e34a4SDavid Howells whdr.flags ^= RXRPC_CLIENT_INITIATED; 3798c3e34a4SDavid Howells whdr.flags &= RXRPC_CLIENT_INITIATED; 3808c3e34a4SDavid Howells 3818c3e34a4SDavid Howells kernel_sendmsg(local->socket, &msg, iov, 2, size); 3828c3e34a4SDavid Howells break; 3838c3e34a4SDavid Howells 3848c3e34a4SDavid Howells default: 3858c3e34a4SDavid Howells break; 3868c3e34a4SDavid Howells } 3878c3e34a4SDavid Howells 3888c3e34a4SDavid Howells rxrpc_free_skb(skb); 3898c3e34a4SDavid Howells } 3908c3e34a4SDavid Howells 3918c3e34a4SDavid Howells _leave(""); 3928c3e34a4SDavid Howells } 393