1da177e4c3
Initial git repository build. I'm not bothering with the full history, even though we have it. We can create a separate "historical" git archive of that later if we want to, and in the meantime it's about 3.2GB when imported into git - space that would just make the early git days unnecessarily complicated, when we don't have a lot of good infrastructure for it. Let it rip!
779 lines
20 KiB
C
779 lines
20 KiB
C
/* connection.c: Rx connection routines
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*
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* Copyright (C) 2002 Red Hat, Inc. All Rights Reserved.
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* Written by David Howells (dhowells@redhat.com)
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*
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* This program is free software; you can redistribute it and/or
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* modify it under the terms of the GNU General Public License
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* as published by the Free Software Foundation; either version
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* 2 of the License, or (at your option) any later version.
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*/
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#include <linux/sched.h>
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#include <linux/slab.h>
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#include <linux/module.h>
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#include <rxrpc/rxrpc.h>
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#include <rxrpc/transport.h>
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#include <rxrpc/peer.h>
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#include <rxrpc/connection.h>
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#include <rxrpc/call.h>
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#include <rxrpc/message.h>
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#include <linux/udp.h>
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#include <linux/ip.h>
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#include <net/sock.h>
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#include <asm/uaccess.h>
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#include "internal.h"
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__RXACCT_DECL(atomic_t rxrpc_connection_count);
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LIST_HEAD(rxrpc_conns);
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DECLARE_RWSEM(rxrpc_conns_sem);
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unsigned long rxrpc_conn_timeout = 60 * 60;
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static void rxrpc_conn_do_timeout(struct rxrpc_connection *conn);
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static void __rxrpc_conn_timeout(rxrpc_timer_t *timer)
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{
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struct rxrpc_connection *conn =
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list_entry(timer, struct rxrpc_connection, timeout);
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_debug("Rx CONN TIMEOUT [%p{u=%d}]", conn, atomic_read(&conn->usage));
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rxrpc_conn_do_timeout(conn);
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}
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static const struct rxrpc_timer_ops rxrpc_conn_timer_ops = {
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.timed_out = __rxrpc_conn_timeout,
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};
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/*****************************************************************************/
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/*
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* create a new connection record
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*/
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static inline int __rxrpc_create_connection(struct rxrpc_peer *peer,
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struct rxrpc_connection **_conn)
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{
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struct rxrpc_connection *conn;
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_enter("%p",peer);
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/* allocate and initialise a connection record */
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conn = kmalloc(sizeof(struct rxrpc_connection), GFP_KERNEL);
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if (!conn) {
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_leave(" = -ENOMEM");
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return -ENOMEM;
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}
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memset(conn, 0, sizeof(struct rxrpc_connection));
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atomic_set(&conn->usage, 1);
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INIT_LIST_HEAD(&conn->link);
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INIT_LIST_HEAD(&conn->id_link);
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init_waitqueue_head(&conn->chanwait);
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spin_lock_init(&conn->lock);
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rxrpc_timer_init(&conn->timeout, &rxrpc_conn_timer_ops);
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do_gettimeofday(&conn->atime);
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conn->mtu_size = 1024;
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conn->peer = peer;
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conn->trans = peer->trans;
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__RXACCT(atomic_inc(&rxrpc_connection_count));
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*_conn = conn;
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_leave(" = 0 (%p)", conn);
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return 0;
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} /* end __rxrpc_create_connection() */
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/*****************************************************************************/
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/*
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* create a new connection record for outgoing connections
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*/
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int rxrpc_create_connection(struct rxrpc_transport *trans,
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__be16 port,
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__be32 addr,
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uint16_t service_id,
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void *security,
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struct rxrpc_connection **_conn)
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{
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struct rxrpc_connection *candidate, *conn;
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struct rxrpc_peer *peer;
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struct list_head *_p;
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__be32 connid;
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int ret;
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_enter("%p{%hu},%u,%hu", trans, trans->port, ntohs(port), service_id);
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/* get a peer record */
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ret = rxrpc_peer_lookup(trans, addr, &peer);
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if (ret < 0) {
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_leave(" = %d", ret);
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return ret;
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}
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/* allocate and initialise a connection record */
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ret = __rxrpc_create_connection(peer, &candidate);
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if (ret < 0) {
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rxrpc_put_peer(peer);
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_leave(" = %d", ret);
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return ret;
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}
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/* fill in the specific bits */
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candidate->addr.sin_family = AF_INET;
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candidate->addr.sin_port = port;
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candidate->addr.sin_addr.s_addr = addr;
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candidate->in_epoch = rxrpc_epoch;
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candidate->out_epoch = rxrpc_epoch;
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candidate->in_clientflag = 0;
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candidate->out_clientflag = RXRPC_CLIENT_INITIATED;
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candidate->service_id = htons(service_id);
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/* invent a unique connection ID */
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write_lock(&peer->conn_idlock);
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try_next_id:
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connid = htonl(peer->conn_idcounter & RXRPC_CIDMASK);
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peer->conn_idcounter += RXRPC_MAXCALLS;
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list_for_each(_p, &peer->conn_idlist) {
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conn = list_entry(_p, struct rxrpc_connection, id_link);
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if (connid == conn->conn_id)
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goto try_next_id;
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if (connid > conn->conn_id)
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break;
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}
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_debug("selected candidate conn ID %x.%u",
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ntohl(peer->addr.s_addr), ntohl(connid));
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candidate->conn_id = connid;
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list_add_tail(&candidate->id_link, _p);
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write_unlock(&peer->conn_idlock);
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/* attach to peer */
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candidate->peer = peer;
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write_lock(&peer->conn_lock);
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/* search the peer's transport graveyard list */
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spin_lock(&peer->conn_gylock);
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list_for_each(_p, &peer->conn_graveyard) {
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conn = list_entry(_p, struct rxrpc_connection, link);
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if (conn->addr.sin_port == candidate->addr.sin_port &&
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conn->security_ix == candidate->security_ix &&
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conn->service_id == candidate->service_id &&
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conn->in_clientflag == 0)
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goto found_in_graveyard;
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}
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spin_unlock(&peer->conn_gylock);
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/* pick the new candidate */
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_debug("created connection: {%08x} [out]", ntohl(candidate->conn_id));
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atomic_inc(&peer->conn_count);
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conn = candidate;
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candidate = NULL;
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make_active:
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list_add_tail(&conn->link, &peer->conn_active);
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write_unlock(&peer->conn_lock);
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if (candidate) {
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write_lock(&peer->conn_idlock);
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list_del(&candidate->id_link);
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write_unlock(&peer->conn_idlock);
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__RXACCT(atomic_dec(&rxrpc_connection_count));
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kfree(candidate);
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}
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else {
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down_write(&rxrpc_conns_sem);
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list_add_tail(&conn->proc_link, &rxrpc_conns);
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up_write(&rxrpc_conns_sem);
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}
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*_conn = conn;
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_leave(" = 0 (%p)", conn);
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return 0;
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/* handle resurrecting a connection from the graveyard */
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found_in_graveyard:
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_debug("resurrecting connection: {%08x} [out]", ntohl(conn->conn_id));
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rxrpc_get_connection(conn);
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rxrpc_krxtimod_del_timer(&conn->timeout);
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list_del_init(&conn->link);
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spin_unlock(&peer->conn_gylock);
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goto make_active;
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} /* end rxrpc_create_connection() */
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/*****************************************************************************/
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/*
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* lookup the connection for an incoming packet
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* - create a new connection record for unrecorded incoming connections
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*/
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int rxrpc_connection_lookup(struct rxrpc_peer *peer,
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struct rxrpc_message *msg,
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struct rxrpc_connection **_conn)
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{
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struct rxrpc_connection *conn, *candidate = NULL;
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struct list_head *_p;
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int ret, fresh = 0;
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__be32 x_epoch, x_connid;
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__be16 x_port, x_servid;
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__u32 x_secix;
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u8 x_clflag;
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_enter("%p{{%hu}},%u,%hu",
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peer,
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peer->trans->port,
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ntohs(msg->pkt->h.uh->source),
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ntohs(msg->hdr.serviceId));
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x_port = msg->pkt->h.uh->source;
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x_epoch = msg->hdr.epoch;
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x_clflag = msg->hdr.flags & RXRPC_CLIENT_INITIATED;
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x_connid = htonl(ntohl(msg->hdr.cid) & RXRPC_CIDMASK);
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x_servid = msg->hdr.serviceId;
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x_secix = msg->hdr.securityIndex;
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/* [common case] search the transport's active list first */
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read_lock(&peer->conn_lock);
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list_for_each(_p, &peer->conn_active) {
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conn = list_entry(_p, struct rxrpc_connection, link);
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if (conn->addr.sin_port == x_port &&
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conn->in_epoch == x_epoch &&
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conn->conn_id == x_connid &&
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conn->security_ix == x_secix &&
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conn->service_id == x_servid &&
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conn->in_clientflag == x_clflag)
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goto found_active;
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}
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read_unlock(&peer->conn_lock);
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/* [uncommon case] not active
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* - create a candidate for a new record if an inbound connection
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* - only examine the graveyard for an outbound connection
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*/
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if (x_clflag) {
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ret = __rxrpc_create_connection(peer, &candidate);
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if (ret < 0) {
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_leave(" = %d", ret);
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return ret;
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}
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/* fill in the specifics */
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candidate->addr.sin_family = AF_INET;
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candidate->addr.sin_port = x_port;
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candidate->addr.sin_addr.s_addr = msg->pkt->nh.iph->saddr;
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candidate->in_epoch = x_epoch;
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candidate->out_epoch = x_epoch;
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candidate->in_clientflag = RXRPC_CLIENT_INITIATED;
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candidate->out_clientflag = 0;
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candidate->conn_id = x_connid;
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candidate->service_id = x_servid;
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candidate->security_ix = x_secix;
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}
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/* search the active list again, just in case it appeared whilst we
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* were busy */
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write_lock(&peer->conn_lock);
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list_for_each(_p, &peer->conn_active) {
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conn = list_entry(_p, struct rxrpc_connection, link);
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if (conn->addr.sin_port == x_port &&
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conn->in_epoch == x_epoch &&
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conn->conn_id == x_connid &&
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conn->security_ix == x_secix &&
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conn->service_id == x_servid &&
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conn->in_clientflag == x_clflag)
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goto found_active_second_chance;
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}
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/* search the transport's graveyard list */
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spin_lock(&peer->conn_gylock);
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list_for_each(_p, &peer->conn_graveyard) {
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conn = list_entry(_p, struct rxrpc_connection, link);
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if (conn->addr.sin_port == x_port &&
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conn->in_epoch == x_epoch &&
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conn->conn_id == x_connid &&
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conn->security_ix == x_secix &&
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conn->service_id == x_servid &&
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conn->in_clientflag == x_clflag)
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goto found_in_graveyard;
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}
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spin_unlock(&peer->conn_gylock);
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/* outbound connections aren't created here */
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if (!x_clflag) {
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write_unlock(&peer->conn_lock);
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_leave(" = -ENOENT");
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return -ENOENT;
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}
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/* we can now add the new candidate to the list */
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_debug("created connection: {%08x} [in]", ntohl(candidate->conn_id));
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rxrpc_get_peer(peer);
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conn = candidate;
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candidate = NULL;
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atomic_inc(&peer->conn_count);
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fresh = 1;
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make_active:
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list_add_tail(&conn->link, &peer->conn_active);
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success_uwfree:
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write_unlock(&peer->conn_lock);
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if (candidate) {
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write_lock(&peer->conn_idlock);
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list_del(&candidate->id_link);
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write_unlock(&peer->conn_idlock);
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__RXACCT(atomic_dec(&rxrpc_connection_count));
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kfree(candidate);
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}
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if (fresh) {
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down_write(&rxrpc_conns_sem);
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list_add_tail(&conn->proc_link, &rxrpc_conns);
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up_write(&rxrpc_conns_sem);
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}
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success:
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*_conn = conn;
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_leave(" = 0 (%p)", conn);
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return 0;
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/* handle the connection being found in the active list straight off */
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found_active:
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rxrpc_get_connection(conn);
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read_unlock(&peer->conn_lock);
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goto success;
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/* handle resurrecting a connection from the graveyard */
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found_in_graveyard:
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_debug("resurrecting connection: {%08x} [in]", ntohl(conn->conn_id));
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rxrpc_get_peer(peer);
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rxrpc_get_connection(conn);
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rxrpc_krxtimod_del_timer(&conn->timeout);
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list_del_init(&conn->link);
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spin_unlock(&peer->conn_gylock);
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goto make_active;
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/* handle finding the connection on the second time through the active
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* list */
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found_active_second_chance:
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rxrpc_get_connection(conn);
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goto success_uwfree;
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} /* end rxrpc_connection_lookup() */
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/*****************************************************************************/
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/*
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* finish using a connection record
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* - it will be transferred to the peer's connection graveyard when refcount
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* reaches 0
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*/
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void rxrpc_put_connection(struct rxrpc_connection *conn)
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{
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struct rxrpc_peer *peer;
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if (!conn)
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return;
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_enter("%p{u=%d p=%hu}",
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conn, atomic_read(&conn->usage), ntohs(conn->addr.sin_port));
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peer = conn->peer;
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spin_lock(&peer->conn_gylock);
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/* sanity check */
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if (atomic_read(&conn->usage) <= 0)
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BUG();
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if (likely(!atomic_dec_and_test(&conn->usage))) {
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spin_unlock(&peer->conn_gylock);
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_leave("");
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return;
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}
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/* move to graveyard queue */
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_debug("burying connection: {%08x}", ntohl(conn->conn_id));
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list_del(&conn->link);
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list_add_tail(&conn->link, &peer->conn_graveyard);
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rxrpc_krxtimod_add_timer(&conn->timeout, rxrpc_conn_timeout * HZ);
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spin_unlock(&peer->conn_gylock);
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rxrpc_put_peer(conn->peer);
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_leave(" [killed]");
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} /* end rxrpc_put_connection() */
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/*****************************************************************************/
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/*
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* free a connection record
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*/
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static void rxrpc_conn_do_timeout(struct rxrpc_connection *conn)
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{
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struct rxrpc_peer *peer;
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_enter("%p{u=%d p=%hu}",
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conn, atomic_read(&conn->usage), ntohs(conn->addr.sin_port));
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peer = conn->peer;
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if (atomic_read(&conn->usage) < 0)
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BUG();
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/* remove from graveyard if still dead */
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spin_lock(&peer->conn_gylock);
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if (atomic_read(&conn->usage) == 0) {
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list_del_init(&conn->link);
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}
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else {
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conn = NULL;
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}
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spin_unlock(&peer->conn_gylock);
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if (!conn) {
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_leave("");
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return; /* resurrected */
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}
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_debug("--- Destroying Connection %p{%08x} ---",
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conn, ntohl(conn->conn_id));
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down_write(&rxrpc_conns_sem);
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list_del(&conn->proc_link);
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up_write(&rxrpc_conns_sem);
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write_lock(&peer->conn_idlock);
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list_del(&conn->id_link);
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write_unlock(&peer->conn_idlock);
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__RXACCT(atomic_dec(&rxrpc_connection_count));
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kfree(conn);
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/* if the graveyard is now empty, wake up anyone waiting for that */
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if (atomic_dec_and_test(&peer->conn_count))
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wake_up(&peer->conn_gy_waitq);
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_leave(" [destroyed]");
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} /* end rxrpc_conn_do_timeout() */
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/*****************************************************************************/
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/*
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* clear all connection records from a peer endpoint
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*/
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void rxrpc_conn_clearall(struct rxrpc_peer *peer)
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{
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DECLARE_WAITQUEUE(myself, current);
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struct rxrpc_connection *conn;
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int err;
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_enter("%p", peer);
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/* there shouldn't be any active conns remaining */
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if (!list_empty(&peer->conn_active))
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BUG();
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/* manually timeout all conns in the graveyard */
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spin_lock(&peer->conn_gylock);
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while (!list_empty(&peer->conn_graveyard)) {
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conn = list_entry(peer->conn_graveyard.next,
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struct rxrpc_connection, link);
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err = rxrpc_krxtimod_del_timer(&conn->timeout);
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spin_unlock(&peer->conn_gylock);
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if (err == 0)
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rxrpc_conn_do_timeout(conn);
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spin_lock(&peer->conn_gylock);
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}
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spin_unlock(&peer->conn_gylock);
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/* wait for the the conn graveyard to be completely cleared */
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set_current_state(TASK_UNINTERRUPTIBLE);
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add_wait_queue(&peer->conn_gy_waitq, &myself);
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while (atomic_read(&peer->conn_count) != 0) {
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schedule();
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set_current_state(TASK_UNINTERRUPTIBLE);
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}
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remove_wait_queue(&peer->conn_gy_waitq, &myself);
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set_current_state(TASK_RUNNING);
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_leave("");
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} /* end rxrpc_conn_clearall() */
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/*****************************************************************************/
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/*
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* allocate and prepare a message for sending out through the transport
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|
* endpoint
|
|
*/
|
|
int rxrpc_conn_newmsg(struct rxrpc_connection *conn,
|
|
struct rxrpc_call *call,
|
|
uint8_t type,
|
|
int dcount,
|
|
struct kvec diov[],
|
|
int alloc_flags,
|
|
struct rxrpc_message **_msg)
|
|
{
|
|
struct rxrpc_message *msg;
|
|
int loop;
|
|
|
|
_enter("%p{%d},%p,%u", conn, ntohs(conn->addr.sin_port), call, type);
|
|
|
|
if (dcount > 3) {
|
|
_leave(" = -EINVAL");
|
|
return -EINVAL;
|
|
}
|
|
|
|
msg = kmalloc(sizeof(struct rxrpc_message), alloc_flags);
|
|
if (!msg) {
|
|
_leave(" = -ENOMEM");
|
|
return -ENOMEM;
|
|
}
|
|
|
|
memset(msg, 0, sizeof(*msg));
|
|
atomic_set(&msg->usage, 1);
|
|
|
|
INIT_LIST_HEAD(&msg->link);
|
|
|
|
msg->state = RXRPC_MSG_PREPARED;
|
|
|
|
msg->hdr.epoch = conn->out_epoch;
|
|
msg->hdr.cid = conn->conn_id | (call ? call->chan_ix : 0);
|
|
msg->hdr.callNumber = call ? call->call_id : 0;
|
|
msg->hdr.type = type;
|
|
msg->hdr.flags = conn->out_clientflag;
|
|
msg->hdr.securityIndex = conn->security_ix;
|
|
msg->hdr.serviceId = conn->service_id;
|
|
|
|
/* generate sequence numbers for data packets */
|
|
if (call) {
|
|
switch (type) {
|
|
case RXRPC_PACKET_TYPE_DATA:
|
|
msg->seq = ++call->snd_seq_count;
|
|
msg->hdr.seq = htonl(msg->seq);
|
|
break;
|
|
case RXRPC_PACKET_TYPE_ACK:
|
|
/* ACK sequence numbers are complicated. The following
|
|
* may be wrong:
|
|
* - jumbo packet ACKs should have a seq number
|
|
* - normal ACKs should not
|
|
*/
|
|
default:
|
|
break;
|
|
}
|
|
}
|
|
|
|
msg->dcount = dcount + 1;
|
|
msg->dsize = sizeof(msg->hdr);
|
|
msg->data[0].iov_len = sizeof(msg->hdr);
|
|
msg->data[0].iov_base = &msg->hdr;
|
|
|
|
for (loop=0; loop < dcount; loop++) {
|
|
msg->dsize += diov[loop].iov_len;
|
|
msg->data[loop+1].iov_len = diov[loop].iov_len;
|
|
msg->data[loop+1].iov_base = diov[loop].iov_base;
|
|
}
|
|
|
|
__RXACCT(atomic_inc(&rxrpc_message_count));
|
|
*_msg = msg;
|
|
_leave(" = 0 (%p) #%d", msg, atomic_read(&rxrpc_message_count));
|
|
return 0;
|
|
} /* end rxrpc_conn_newmsg() */
|
|
|
|
/*****************************************************************************/
|
|
/*
|
|
* free a message
|
|
*/
|
|
void __rxrpc_put_message(struct rxrpc_message *msg)
|
|
{
|
|
int loop;
|
|
|
|
_enter("%p #%d", msg, atomic_read(&rxrpc_message_count));
|
|
|
|
if (msg->pkt)
|
|
kfree_skb(msg->pkt);
|
|
rxrpc_put_connection(msg->conn);
|
|
|
|
for (loop = 0; loop < 8; loop++)
|
|
if (test_bit(loop, &msg->dfree))
|
|
kfree(msg->data[loop].iov_base);
|
|
|
|
__RXACCT(atomic_dec(&rxrpc_message_count));
|
|
kfree(msg);
|
|
|
|
_leave("");
|
|
} /* end __rxrpc_put_message() */
|
|
|
|
/*****************************************************************************/
|
|
/*
|
|
* send a message out through the transport endpoint
|
|
*/
|
|
int rxrpc_conn_sendmsg(struct rxrpc_connection *conn,
|
|
struct rxrpc_message *msg)
|
|
{
|
|
struct msghdr msghdr;
|
|
int ret;
|
|
|
|
_enter("%p{%d}", conn, ntohs(conn->addr.sin_port));
|
|
|
|
/* fill in some fields in the header */
|
|
spin_lock(&conn->lock);
|
|
msg->hdr.serial = htonl(++conn->serial_counter);
|
|
msg->rttdone = 0;
|
|
spin_unlock(&conn->lock);
|
|
|
|
/* set up the message to be transmitted */
|
|
msghdr.msg_name = &conn->addr;
|
|
msghdr.msg_namelen = sizeof(conn->addr);
|
|
msghdr.msg_control = NULL;
|
|
msghdr.msg_controllen = 0;
|
|
msghdr.msg_flags = MSG_CONFIRM | MSG_DONTWAIT;
|
|
|
|
_net("Sending message type %d of %Zd bytes to %08x:%d",
|
|
msg->hdr.type,
|
|
msg->dsize,
|
|
ntohl(conn->addr.sin_addr.s_addr),
|
|
ntohs(conn->addr.sin_port));
|
|
|
|
/* send the message */
|
|
ret = kernel_sendmsg(conn->trans->socket, &msghdr,
|
|
msg->data, msg->dcount, msg->dsize);
|
|
if (ret < 0) {
|
|
msg->state = RXRPC_MSG_ERROR;
|
|
} else {
|
|
msg->state = RXRPC_MSG_SENT;
|
|
ret = 0;
|
|
|
|
spin_lock(&conn->lock);
|
|
do_gettimeofday(&conn->atime);
|
|
msg->stamp = conn->atime;
|
|
spin_unlock(&conn->lock);
|
|
}
|
|
|
|
_leave(" = %d", ret);
|
|
|
|
return ret;
|
|
} /* end rxrpc_conn_sendmsg() */
|
|
|
|
/*****************************************************************************/
|
|
/*
|
|
* deal with a subsequent call packet
|
|
*/
|
|
int rxrpc_conn_receive_call_packet(struct rxrpc_connection *conn,
|
|
struct rxrpc_call *call,
|
|
struct rxrpc_message *msg)
|
|
{
|
|
struct rxrpc_message *pmsg;
|
|
struct list_head *_p;
|
|
unsigned cix, seq;
|
|
int ret = 0;
|
|
|
|
_enter("%p,%p,%p", conn, call, msg);
|
|
|
|
if (!call) {
|
|
cix = ntohl(msg->hdr.cid) & RXRPC_CHANNELMASK;
|
|
|
|
spin_lock(&conn->lock);
|
|
call = conn->channels[cix];
|
|
|
|
if (!call || call->call_id != msg->hdr.callNumber) {
|
|
spin_unlock(&conn->lock);
|
|
rxrpc_trans_immediate_abort(conn->trans, msg, -ENOENT);
|
|
goto out;
|
|
}
|
|
else {
|
|
rxrpc_get_call(call);
|
|
spin_unlock(&conn->lock);
|
|
}
|
|
}
|
|
else {
|
|
rxrpc_get_call(call);
|
|
}
|
|
|
|
_proto("Received packet %%%u [%u] on call %hu:%u:%u",
|
|
ntohl(msg->hdr.serial),
|
|
ntohl(msg->hdr.seq),
|
|
ntohs(msg->hdr.serviceId),
|
|
ntohl(conn->conn_id),
|
|
ntohl(call->call_id));
|
|
|
|
call->pkt_rcv_count++;
|
|
|
|
if (msg->pkt->dst && msg->pkt->dst->dev)
|
|
conn->peer->if_mtu =
|
|
msg->pkt->dst->dev->mtu -
|
|
msg->pkt->dst->dev->hard_header_len;
|
|
|
|
/* queue on the call in seq order */
|
|
rxrpc_get_message(msg);
|
|
seq = msg->seq;
|
|
|
|
spin_lock(&call->lock);
|
|
list_for_each(_p, &call->rcv_receiveq) {
|
|
pmsg = list_entry(_p, struct rxrpc_message, link);
|
|
if (pmsg->seq > seq)
|
|
break;
|
|
}
|
|
list_add_tail(&msg->link, _p);
|
|
|
|
/* reset the activity timeout */
|
|
call->flags |= RXRPC_CALL_RCV_PKT;
|
|
mod_timer(&call->rcv_timeout,jiffies + rxrpc_call_rcv_timeout * HZ);
|
|
|
|
spin_unlock(&call->lock);
|
|
|
|
rxrpc_krxiod_queue_call(call);
|
|
|
|
rxrpc_put_call(call);
|
|
out:
|
|
_leave(" = %d", ret);
|
|
return ret;
|
|
} /* end rxrpc_conn_receive_call_packet() */
|
|
|
|
/*****************************************************************************/
|
|
/*
|
|
* handle an ICMP error being applied to a connection
|
|
*/
|
|
void rxrpc_conn_handle_error(struct rxrpc_connection *conn,
|
|
int local, int errno)
|
|
{
|
|
struct rxrpc_call *calls[4];
|
|
int loop;
|
|
|
|
_enter("%p{%d},%d", conn, ntohs(conn->addr.sin_port), errno);
|
|
|
|
/* get a ref to all my calls in one go */
|
|
memset(calls, 0, sizeof(calls));
|
|
spin_lock(&conn->lock);
|
|
|
|
for (loop = 3; loop >= 0; loop--) {
|
|
if (conn->channels[loop]) {
|
|
calls[loop] = conn->channels[loop];
|
|
rxrpc_get_call(calls[loop]);
|
|
}
|
|
}
|
|
|
|
spin_unlock(&conn->lock);
|
|
|
|
/* now kick them all */
|
|
for (loop = 3; loop >= 0; loop--) {
|
|
if (calls[loop]) {
|
|
rxrpc_call_handle_error(calls[loop], local, errno);
|
|
rxrpc_put_call(calls[loop]);
|
|
}
|
|
}
|
|
|
|
_leave("");
|
|
} /* end rxrpc_conn_handle_error() */
|