diff options
Diffstat (limited to 'net/sctp/socket.c')
| -rw-r--r-- | net/sctp/socket.c | 30 |
1 files changed, 11 insertions, 19 deletions
diff --git a/net/sctp/socket.c b/net/sctp/socket.c index 9874e60c9b0d..39ea0a37af09 100644 --- a/net/sctp/socket.c +++ b/net/sctp/socket.c @@ -1,3 +1,4 @@ +// SPDX-License-Identifier: GPL-2.0-or-later /* SCTP kernel implementation * (C) Copyright IBM Corp. 2001, 2004 * Copyright (c) 1999-2000 Cisco, Inc. @@ -15,22 +16,6 @@ * functions--this file is the functions which populate the struct proto * for SCTP which is the BOTTOM of the sockets interface. * - * This SCTP implementation is free software; - * you can redistribute it and/or modify it under the terms of - * the GNU General Public License as published by - * the Free Software Foundation; either version 2, or (at your option) - * any later version. - * - * This SCTP implementation is distributed in the hope that it - * will be useful, but WITHOUT ANY WARRANTY; without even the implied - * ************************ - * warranty of MERCHANTABILITY or FITNESS FOR A PARTICULAR PURPOSE. - * See the GNU General Public License for more details. - * - * You should have received a copy of the GNU General Public License - * along with GNU CC; see the file COPYING. If not, see - * <http://www.gnu.org/licenses/>. - * * Please send any bug reports or fixes you make to the * email address(es): * lksctp developers <linux-sctp@vger.kernel.org> @@ -1913,7 +1898,10 @@ static int sctp_sendmsg_to_asoc(struct sctp_association *asoc, if (sctp_wspace(asoc) < (int)msg_len) sctp_prsctp_prune(asoc, sinfo, msg_len - sctp_wspace(asoc)); - if (sctp_wspace(asoc) <= 0) { + if (sk_under_memory_pressure(sk)) + sk_mem_reclaim(sk); + + if (sctp_wspace(asoc) <= 0 || !sk_wmem_schedule(sk, msg_len)) { timeo = sock_sndtimeo(sk, msg->msg_flags & MSG_DONTWAIT); err = sctp_wait_for_sndbuf(asoc, &timeo, msg_len); if (err) @@ -4847,7 +4835,8 @@ static int sctp_connect(struct sock *sk, struct sockaddr *addr, } /* Validate addr_len before calling common connect/connectx routine. */ - af = sctp_get_af_specific(addr->sa_family); + af = addr_len < offsetofend(struct sockaddr, sa_family) ? NULL : + sctp_get_af_specific(addr->sa_family); if (!af || addr_len < af->sockaddr_len) { err = -EINVAL; } else { @@ -8930,7 +8919,10 @@ static int sctp_wait_for_sndbuf(struct sctp_association *asoc, long *timeo_p, goto do_error; if (signal_pending(current)) goto do_interrupted; - if ((int)msg_len <= sctp_wspace(asoc)) + if (sk_under_memory_pressure(sk)) + sk_mem_reclaim(sk); + if ((int)msg_len <= sctp_wspace(asoc) && + sk_wmem_schedule(sk, msg_len)) break; /* Let another process have a go. Since we are going |