18c3e34a4SDavid Howells /* RxRPC packet transmission 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/net.h> 158c3e34a4SDavid Howells #include <linux/gfp.h> 168c3e34a4SDavid Howells #include <linux/skbuff.h> 178c3e34a4SDavid Howells #include <linux/export.h> 188c3e34a4SDavid Howells #include <net/sock.h> 198c3e34a4SDavid Howells #include <net/af_rxrpc.h> 208c3e34a4SDavid Howells #include "ar-internal.h" 218c3e34a4SDavid Howells 228d94aa38SDavid Howells struct rxrpc_pkt_buffer { 238d94aa38SDavid Howells struct rxrpc_wire_header whdr; 248d94aa38SDavid Howells union { 258d94aa38SDavid Howells struct { 268d94aa38SDavid Howells struct rxrpc_ackpacket ack; 278d94aa38SDavid Howells u8 acks[255]; 288d94aa38SDavid Howells u8 pad[3]; 298d94aa38SDavid Howells }; 308d94aa38SDavid Howells __be32 abort_code; 318d94aa38SDavid Howells }; 328d94aa38SDavid Howells struct rxrpc_ackinfo ackinfo; 338d94aa38SDavid Howells }; 348d94aa38SDavid Howells 358d94aa38SDavid Howells /* 368d94aa38SDavid Howells * Fill out an ACK packet. 378d94aa38SDavid Howells */ 388d94aa38SDavid Howells static size_t rxrpc_fill_out_ack(struct rxrpc_call *call, 398d94aa38SDavid Howells struct rxrpc_pkt_buffer *pkt) 408d94aa38SDavid Howells { 41f3639df2SDavid Howells rxrpc_serial_t serial; 42248f219cSDavid Howells rxrpc_seq_t hard_ack, top, seq; 43248f219cSDavid Howells int ix; 448d94aa38SDavid Howells u32 mtu, jmax; 458d94aa38SDavid Howells u8 *ackp = pkt->acks; 468d94aa38SDavid Howells 47248f219cSDavid Howells /* Barrier against rxrpc_input_data(). */ 48f3639df2SDavid Howells serial = call->ackr_serial; 49248f219cSDavid Howells hard_ack = READ_ONCE(call->rx_hard_ack); 50248f219cSDavid Howells top = smp_load_acquire(&call->rx_top); 51248f219cSDavid Howells 528d94aa38SDavid Howells pkt->ack.bufferSpace = htons(8); 53248f219cSDavid Howells pkt->ack.maxSkew = htons(call->ackr_skew); 54248f219cSDavid Howells pkt->ack.firstPacket = htonl(hard_ack + 1); 558d94aa38SDavid Howells pkt->ack.previousPacket = htonl(call->ackr_prev_seq); 56f3639df2SDavid Howells pkt->ack.serial = htonl(serial); 57248f219cSDavid Howells pkt->ack.reason = call->ackr_reason; 58248f219cSDavid Howells pkt->ack.nAcks = top - hard_ack; 598d94aa38SDavid Howells 60248f219cSDavid Howells if (after(top, hard_ack)) { 61248f219cSDavid Howells seq = hard_ack + 1; 62248f219cSDavid Howells do { 63248f219cSDavid Howells ix = seq & RXRPC_RXTX_BUFF_MASK; 64248f219cSDavid Howells if (call->rxtx_buffer[ix]) 65248f219cSDavid Howells *ackp++ = RXRPC_ACK_TYPE_ACK; 66248f219cSDavid Howells else 67248f219cSDavid Howells *ackp++ = RXRPC_ACK_TYPE_NACK; 68248f219cSDavid Howells seq++; 69248f219cSDavid Howells } while (before_eq(seq, top)); 70248f219cSDavid Howells } 71248f219cSDavid Howells 72248f219cSDavid Howells mtu = call->conn->params.peer->if_mtu; 73248f219cSDavid Howells mtu -= call->conn->params.peer->hdrsize; 7475e42126SDavid Howells jmax = (call->nr_jumbo_bad > 3) ? 1 : rxrpc_rx_jumbo_max; 758d94aa38SDavid Howells pkt->ackinfo.rxMTU = htonl(rxrpc_rx_mtu); 768d94aa38SDavid Howells pkt->ackinfo.maxMTU = htonl(mtu); 7775e42126SDavid Howells pkt->ackinfo.rwind = htonl(call->rx_winsize); 788d94aa38SDavid Howells pkt->ackinfo.jumbo_max = htonl(jmax); 798d94aa38SDavid Howells 80f3639df2SDavid Howells trace_rxrpc_tx_ack(call, hard_ack + 1, serial, call->ackr_reason, 81f3639df2SDavid Howells top - hard_ack); 82f3639df2SDavid Howells 838d94aa38SDavid Howells *ackp++ = 0; 848d94aa38SDavid Howells *ackp++ = 0; 858d94aa38SDavid Howells *ackp++ = 0; 86248f219cSDavid Howells return top - hard_ack + 3; 878d94aa38SDavid Howells } 888d94aa38SDavid Howells 898d94aa38SDavid Howells /* 90248f219cSDavid Howells * Send an ACK or ABORT call packet. 918d94aa38SDavid Howells */ 928d94aa38SDavid Howells int rxrpc_send_call_packet(struct rxrpc_call *call, u8 type) 938d94aa38SDavid Howells { 948d94aa38SDavid Howells struct rxrpc_connection *conn = NULL; 958d94aa38SDavid Howells struct rxrpc_pkt_buffer *pkt; 968d94aa38SDavid Howells struct msghdr msg; 978d94aa38SDavid Howells struct kvec iov[2]; 988d94aa38SDavid Howells rxrpc_serial_t serial; 998d94aa38SDavid Howells size_t len, n; 1008d94aa38SDavid Howells int ioc, ret; 1018d94aa38SDavid Howells u32 abort_code; 1028d94aa38SDavid Howells 1038d94aa38SDavid Howells _enter("%u,%s", call->debug_id, rxrpc_pkts[type]); 1048d94aa38SDavid Howells 1058d94aa38SDavid Howells spin_lock_bh(&call->lock); 1068d94aa38SDavid Howells if (call->conn) 1078d94aa38SDavid Howells conn = rxrpc_get_connection_maybe(call->conn); 1088d94aa38SDavid Howells spin_unlock_bh(&call->lock); 1098d94aa38SDavid Howells if (!conn) 1108d94aa38SDavid Howells return -ECONNRESET; 1118d94aa38SDavid Howells 1128d94aa38SDavid Howells pkt = kzalloc(sizeof(*pkt), GFP_KERNEL); 1138d94aa38SDavid Howells if (!pkt) { 1148d94aa38SDavid Howells rxrpc_put_connection(conn); 1158d94aa38SDavid Howells return -ENOMEM; 1168d94aa38SDavid Howells } 1178d94aa38SDavid Howells 1188d94aa38SDavid Howells serial = atomic_inc_return(&conn->serial); 1198d94aa38SDavid Howells 1208d94aa38SDavid Howells msg.msg_name = &call->peer->srx.transport; 1218d94aa38SDavid Howells msg.msg_namelen = call->peer->srx.transport_len; 1228d94aa38SDavid Howells msg.msg_control = NULL; 1238d94aa38SDavid Howells msg.msg_controllen = 0; 1248d94aa38SDavid Howells msg.msg_flags = 0; 1258d94aa38SDavid Howells 1268d94aa38SDavid Howells pkt->whdr.epoch = htonl(conn->proto.epoch); 1278d94aa38SDavid Howells pkt->whdr.cid = htonl(call->cid); 1288d94aa38SDavid Howells pkt->whdr.callNumber = htonl(call->call_id); 1298d94aa38SDavid Howells pkt->whdr.seq = 0; 1308d94aa38SDavid Howells pkt->whdr.serial = htonl(serial); 1318d94aa38SDavid Howells pkt->whdr.type = type; 1328d94aa38SDavid Howells pkt->whdr.flags = conn->out_clientflag; 1338d94aa38SDavid Howells pkt->whdr.userStatus = 0; 1348d94aa38SDavid Howells pkt->whdr.securityIndex = call->security_ix; 1358d94aa38SDavid Howells pkt->whdr._rsvd = 0; 1368d94aa38SDavid Howells pkt->whdr.serviceId = htons(call->service_id); 1378d94aa38SDavid Howells 1388d94aa38SDavid Howells iov[0].iov_base = pkt; 1398d94aa38SDavid Howells iov[0].iov_len = sizeof(pkt->whdr); 1408d94aa38SDavid Howells len = sizeof(pkt->whdr); 1418d94aa38SDavid Howells 1428d94aa38SDavid Howells switch (type) { 1438d94aa38SDavid Howells case RXRPC_PACKET_TYPE_ACK: 1448d94aa38SDavid Howells spin_lock_bh(&call->lock); 14527d0fc43SDavid Howells if (!call->ackr_reason) { 14627d0fc43SDavid Howells spin_unlock_bh(&call->lock); 14727d0fc43SDavid Howells ret = 0; 14827d0fc43SDavid Howells goto out; 14927d0fc43SDavid Howells } 1508d94aa38SDavid Howells n = rxrpc_fill_out_ack(call, pkt); 1518d94aa38SDavid Howells call->ackr_reason = 0; 1528d94aa38SDavid Howells 1538d94aa38SDavid Howells spin_unlock_bh(&call->lock); 1548d94aa38SDavid Howells 1558d94aa38SDavid Howells _proto("Tx ACK %%%u { m=%hu f=#%u p=#%u s=%%%u r=%s n=%u }", 1568d94aa38SDavid Howells serial, 1578d94aa38SDavid Howells ntohs(pkt->ack.maxSkew), 1588d94aa38SDavid Howells ntohl(pkt->ack.firstPacket), 1598d94aa38SDavid Howells ntohl(pkt->ack.previousPacket), 1608d94aa38SDavid Howells ntohl(pkt->ack.serial), 1618d94aa38SDavid Howells rxrpc_acks(pkt->ack.reason), 1628d94aa38SDavid Howells pkt->ack.nAcks); 1638d94aa38SDavid Howells 1648d94aa38SDavid Howells iov[0].iov_len += sizeof(pkt->ack) + n; 1658d94aa38SDavid Howells iov[1].iov_base = &pkt->ackinfo; 1668d94aa38SDavid Howells iov[1].iov_len = sizeof(pkt->ackinfo); 1678d94aa38SDavid Howells len += sizeof(pkt->ack) + n + sizeof(pkt->ackinfo); 1688d94aa38SDavid Howells ioc = 2; 1698d94aa38SDavid Howells break; 1708d94aa38SDavid Howells 1718d94aa38SDavid Howells case RXRPC_PACKET_TYPE_ABORT: 1728d94aa38SDavid Howells abort_code = call->abort_code; 1738d94aa38SDavid Howells pkt->abort_code = htonl(abort_code); 1748d94aa38SDavid Howells _proto("Tx ABORT %%%u { %d }", serial, abort_code); 1758d94aa38SDavid Howells iov[0].iov_len += sizeof(pkt->abort_code); 1768d94aa38SDavid Howells len += sizeof(pkt->abort_code); 1778d94aa38SDavid Howells ioc = 1; 1788d94aa38SDavid Howells break; 1798d94aa38SDavid Howells 1808d94aa38SDavid Howells default: 1818d94aa38SDavid Howells BUG(); 1828d94aa38SDavid Howells ret = -ENOANO; 1838d94aa38SDavid Howells goto out; 1848d94aa38SDavid Howells } 1858d94aa38SDavid Howells 1868d94aa38SDavid Howells ret = kernel_sendmsg(conn->params.local->socket, 1878d94aa38SDavid Howells &msg, iov, ioc, len); 1888d94aa38SDavid Howells 189248f219cSDavid Howells if (ret < 0 && call->state < RXRPC_CALL_COMPLETE) { 1902311e327SDavid Howells switch (type) { 191248f219cSDavid Howells case RXRPC_PACKET_TYPE_ACK: 192248f219cSDavid Howells rxrpc_propose_ACK(call, pkt->ack.reason, 193248f219cSDavid Howells ntohs(pkt->ack.maxSkew), 194248f219cSDavid Howells ntohl(pkt->ack.serial), 195248f219cSDavid Howells true, true); 196248f219cSDavid Howells break; 197248f219cSDavid Howells case RXRPC_PACKET_TYPE_ABORT: 198248f219cSDavid Howells break; 199248f219cSDavid Howells } 200248f219cSDavid Howells } 201248f219cSDavid Howells 2028d94aa38SDavid Howells out: 2038d94aa38SDavid Howells rxrpc_put_connection(conn); 2048d94aa38SDavid Howells kfree(pkt); 2058d94aa38SDavid Howells return ret; 2068d94aa38SDavid Howells } 2078d94aa38SDavid Howells 2088c3e34a4SDavid Howells /* 2098c3e34a4SDavid Howells * send a packet through the transport endpoint 2108c3e34a4SDavid Howells */ 2115a924b89SDavid Howells int rxrpc_send_data_packet(struct rxrpc_call *call, struct sk_buff *skb) 2128c3e34a4SDavid Howells { 2135a924b89SDavid Howells struct rxrpc_connection *conn = call->conn; 2145a924b89SDavid Howells struct rxrpc_wire_header whdr; 2155a924b89SDavid Howells struct rxrpc_skb_priv *sp = rxrpc_skb(skb); 2168c3e34a4SDavid Howells struct msghdr msg; 2175a924b89SDavid Howells struct kvec iov[2]; 2185a924b89SDavid Howells rxrpc_serial_t serial; 2195a924b89SDavid Howells size_t len; 2208c3e34a4SDavid Howells int ret, opt; 2218c3e34a4SDavid Howells 2228c3e34a4SDavid Howells _enter(",{%d}", skb->len); 2238c3e34a4SDavid Howells 2245a924b89SDavid Howells /* Each transmission of a Tx packet needs a new serial number */ 2255a924b89SDavid Howells serial = atomic_inc_return(&conn->serial); 2268c3e34a4SDavid Howells 2275a924b89SDavid Howells whdr.epoch = htonl(conn->proto.epoch); 2285a924b89SDavid Howells whdr.cid = htonl(call->cid); 2295a924b89SDavid Howells whdr.callNumber = htonl(call->call_id); 2305a924b89SDavid Howells whdr.seq = htonl(sp->hdr.seq); 2315a924b89SDavid Howells whdr.serial = htonl(serial); 2325a924b89SDavid Howells whdr.type = RXRPC_PACKET_TYPE_DATA; 2335a924b89SDavid Howells whdr.flags = sp->hdr.flags; 2345a924b89SDavid Howells whdr.userStatus = 0; 2355a924b89SDavid Howells whdr.securityIndex = call->security_ix; 2365a924b89SDavid Howells whdr._rsvd = htons(sp->hdr._rsvd); 2375a924b89SDavid Howells whdr.serviceId = htons(call->service_id); 2385a924b89SDavid Howells 2395a924b89SDavid Howells iov[0].iov_base = &whdr; 2405a924b89SDavid Howells iov[0].iov_len = sizeof(whdr); 2415a924b89SDavid Howells iov[1].iov_base = skb->head; 2425a924b89SDavid Howells iov[1].iov_len = skb->len; 2435a924b89SDavid Howells len = iov[0].iov_len + iov[1].iov_len; 2445a924b89SDavid Howells 2455a924b89SDavid Howells msg.msg_name = &call->peer->srx.transport; 2465a924b89SDavid Howells msg.msg_namelen = call->peer->srx.transport_len; 2478c3e34a4SDavid Howells msg.msg_control = NULL; 2488c3e34a4SDavid Howells msg.msg_controllen = 0; 2498c3e34a4SDavid Howells msg.msg_flags = 0; 2508c3e34a4SDavid Howells 2518a681c36SDavid Howells if (IS_ENABLED(CONFIG_AF_RXRPC_INJECT_LOSS)) { 2528a681c36SDavid Howells static int lose; 2538a681c36SDavid Howells if ((lose++ & 7) == 7) { 2548a681c36SDavid Howells rxrpc_lose_skb(skb, rxrpc_skb_tx_lost); 2558a681c36SDavid Howells _leave(" = 0 [lose]"); 2568a681c36SDavid Howells return 0; 2578a681c36SDavid Howells } 2588a681c36SDavid Howells } 2598a681c36SDavid Howells 2605a924b89SDavid Howells _proto("Tx DATA %%%u { #%u }", serial, sp->hdr.seq); 2615a924b89SDavid Howells 2628c3e34a4SDavid Howells /* send the packet with the don't fragment bit set if we currently 2638c3e34a4SDavid Howells * think it's small enough */ 2645a924b89SDavid Howells if (iov[1].iov_len >= call->peer->maxdata) 2655a924b89SDavid Howells goto send_fragmentable; 2665a924b89SDavid Howells 267985a5c82SDavid Howells down_read(&conn->params.local->defrag_sem); 2688c3e34a4SDavid Howells /* send the packet by UDP 2698c3e34a4SDavid Howells * - returns -EMSGSIZE if UDP would have to fragment the packet 2708c3e34a4SDavid Howells * to go out of the interface 2718c3e34a4SDavid Howells * - in which case, we'll have processed the ICMP error 2728c3e34a4SDavid Howells * message and update the peer record 2738c3e34a4SDavid Howells */ 2745a924b89SDavid Howells ret = kernel_sendmsg(conn->params.local->socket, &msg, iov, 2, len); 2758c3e34a4SDavid Howells 276985a5c82SDavid Howells up_read(&conn->params.local->defrag_sem); 2778c3e34a4SDavid Howells if (ret == -EMSGSIZE) 2788c3e34a4SDavid Howells goto send_fragmentable; 2798c3e34a4SDavid Howells 2805a924b89SDavid Howells done: 2815a924b89SDavid Howells if (ret == 0) { 2825a924b89SDavid Howells sp->resend_at = jiffies + rxrpc_resend_timeout; 2835a924b89SDavid Howells sp->hdr.serial = serial; 2848c3e34a4SDavid Howells } 2855a924b89SDavid Howells _leave(" = %d [%u]", ret, call->peer->maxdata); 2865a924b89SDavid Howells return ret; 2878c3e34a4SDavid Howells 2888c3e34a4SDavid Howells send_fragmentable: 2898c3e34a4SDavid Howells /* attempt to send this message with fragmentation enabled */ 2908c3e34a4SDavid Howells _debug("send fragment"); 2918c3e34a4SDavid Howells 292985a5c82SDavid Howells down_write(&conn->params.local->defrag_sem); 293985a5c82SDavid Howells 294985a5c82SDavid Howells switch (conn->params.local->srx.transport.family) { 295985a5c82SDavid Howells case AF_INET: 2968c3e34a4SDavid Howells opt = IP_PMTUDISC_DONT; 297985a5c82SDavid Howells ret = kernel_setsockopt(conn->params.local->socket, 298985a5c82SDavid Howells SOL_IP, IP_MTU_DISCOVER, 2998c3e34a4SDavid Howells (char *)&opt, sizeof(opt)); 3008c3e34a4SDavid Howells if (ret == 0) { 3015a924b89SDavid Howells ret = kernel_sendmsg(conn->params.local->socket, &msg, 3025a924b89SDavid Howells iov, 2, len); 3038c3e34a4SDavid Howells 3048c3e34a4SDavid Howells opt = IP_PMTUDISC_DO; 305985a5c82SDavid Howells kernel_setsockopt(conn->params.local->socket, SOL_IP, 306985a5c82SDavid Howells IP_MTU_DISCOVER, 307985a5c82SDavid Howells (char *)&opt, sizeof(opt)); 308985a5c82SDavid Howells } 309985a5c82SDavid Howells break; 31075b54cb5SDavid Howells 311d1912747SDavid Howells #ifdef CONFIG_AF_RXRPC_IPV6 31275b54cb5SDavid Howells case AF_INET6: 31375b54cb5SDavid Howells opt = IPV6_PMTUDISC_DONT; 31475b54cb5SDavid Howells ret = kernel_setsockopt(conn->params.local->socket, 31575b54cb5SDavid Howells SOL_IPV6, IPV6_MTU_DISCOVER, 31675b54cb5SDavid Howells (char *)&opt, sizeof(opt)); 31775b54cb5SDavid Howells if (ret == 0) { 31875b54cb5SDavid Howells ret = kernel_sendmsg(conn->params.local->socket, &msg, 31975b54cb5SDavid Howells iov, 1, iov[0].iov_len); 32075b54cb5SDavid Howells 32175b54cb5SDavid Howells opt = IPV6_PMTUDISC_DO; 32275b54cb5SDavid Howells kernel_setsockopt(conn->params.local->socket, 32375b54cb5SDavid Howells SOL_IPV6, IPV6_MTU_DISCOVER, 32475b54cb5SDavid Howells (char *)&opt, sizeof(opt)); 32575b54cb5SDavid Howells } 32675b54cb5SDavid Howells break; 327d1912747SDavid Howells #endif 3288c3e34a4SDavid Howells } 3298c3e34a4SDavid Howells 330985a5c82SDavid Howells up_write(&conn->params.local->defrag_sem); 3315a924b89SDavid Howells goto done; 3328c3e34a4SDavid Howells } 333248f219cSDavid Howells 334248f219cSDavid Howells /* 335248f219cSDavid Howells * reject packets through the local endpoint 336248f219cSDavid Howells */ 337248f219cSDavid Howells void rxrpc_reject_packets(struct rxrpc_local *local) 338248f219cSDavid Howells { 3391c2bc7b9SDavid Howells struct sockaddr_rxrpc srx; 340248f219cSDavid Howells struct rxrpc_skb_priv *sp; 341248f219cSDavid Howells struct rxrpc_wire_header whdr; 342248f219cSDavid Howells struct sk_buff *skb; 343248f219cSDavid Howells struct msghdr msg; 344248f219cSDavid Howells struct kvec iov[2]; 345248f219cSDavid Howells size_t size; 346248f219cSDavid Howells __be32 code; 347248f219cSDavid Howells 348248f219cSDavid Howells _enter("%d", local->debug_id); 349248f219cSDavid Howells 350248f219cSDavid Howells iov[0].iov_base = &whdr; 351248f219cSDavid Howells iov[0].iov_len = sizeof(whdr); 352248f219cSDavid Howells iov[1].iov_base = &code; 353248f219cSDavid Howells iov[1].iov_len = sizeof(code); 354248f219cSDavid Howells size = sizeof(whdr) + sizeof(code); 355248f219cSDavid Howells 3561c2bc7b9SDavid Howells msg.msg_name = &srx.transport; 357248f219cSDavid Howells msg.msg_control = NULL; 358248f219cSDavid Howells msg.msg_controllen = 0; 359248f219cSDavid Howells msg.msg_flags = 0; 360248f219cSDavid Howells 361248f219cSDavid Howells memset(&whdr, 0, sizeof(whdr)); 362248f219cSDavid Howells whdr.type = RXRPC_PACKET_TYPE_ABORT; 363248f219cSDavid Howells 364248f219cSDavid Howells while ((skb = skb_dequeue(&local->reject_queue))) { 36571f3ca40SDavid Howells rxrpc_see_skb(skb, rxrpc_skb_rx_seen); 366248f219cSDavid Howells sp = rxrpc_skb(skb); 3671c2bc7b9SDavid Howells 3681c2bc7b9SDavid Howells if (rxrpc_extract_addr_from_skb(&srx, skb) == 0) { 3691c2bc7b9SDavid Howells msg.msg_namelen = srx.transport_len; 3701c2bc7b9SDavid Howells 371248f219cSDavid Howells code = htonl(skb->priority); 372248f219cSDavid Howells 373248f219cSDavid Howells whdr.epoch = htonl(sp->hdr.epoch); 374248f219cSDavid Howells whdr.cid = htonl(sp->hdr.cid); 375248f219cSDavid Howells whdr.callNumber = htonl(sp->hdr.callNumber); 376248f219cSDavid Howells whdr.serviceId = htons(sp->hdr.serviceId); 377248f219cSDavid Howells whdr.flags = sp->hdr.flags; 378248f219cSDavid Howells whdr.flags ^= RXRPC_CLIENT_INITIATED; 379248f219cSDavid Howells whdr.flags &= RXRPC_CLIENT_INITIATED; 380248f219cSDavid Howells 381248f219cSDavid Howells kernel_sendmsg(local->socket, &msg, iov, 2, size); 382248f219cSDavid Howells } 383248f219cSDavid Howells 38471f3ca40SDavid Howells rxrpc_free_skb(skb, rxrpc_skb_rx_freed); 385248f219cSDavid Howells } 386248f219cSDavid Howells 387248f219cSDavid Howells _leave(""); 388248f219cSDavid Howells } 389