diff options
Diffstat (limited to 'net/sctp')
| -rw-r--r-- | net/sctp/Makefile | 2 | ||||
| -rw-r--r-- | net/sctp/command.c | 68 | ||||
| -rw-r--r-- | net/sctp/outqueue.c | 1 | ||||
| -rw-r--r-- | net/sctp/sm_statefuns.c | 4 | ||||
| -rw-r--r-- | net/sctp/sysctl.c | 5 | ||||
| -rw-r--r-- | net/sctp/transport.c | 17 |
6 files changed, 13 insertions, 84 deletions
diff --git a/net/sctp/Makefile b/net/sctp/Makefile index 5c30b7a873df..3b4ffb021cf1 100644 --- a/net/sctp/Makefile +++ b/net/sctp/Makefile @@ -8,7 +8,7 @@ obj-$(CONFIG_NET_SCTPPROBE) += sctp_probe.o sctp-y := sm_statetable.o sm_statefuns.o sm_sideeffect.o \ protocol.o endpointola.o associola.o \ transport.o chunk.o sm_make_chunk.o ulpevent.o \ - inqueue.o outqueue.o ulpqueue.o command.o \ + inqueue.o outqueue.o ulpqueue.o \ tsnmap.o bind_addr.o socket.o primitive.o \ output.o input.o debug.o ssnmap.o auth.o diff --git a/net/sctp/command.c b/net/sctp/command.c deleted file mode 100644 index dd7375851618..000000000000 --- a/net/sctp/command.c +++ /dev/null @@ -1,68 +0,0 @@ -/* SCTP kernel implementation Copyright (C) 1999-2001 - * Cisco, Motorola, and IBM - * Copyright 2001 La Monte H.P. Yarroll - * - * This file is part of the SCTP kernel implementation - * - * These functions manipulate sctp command sequences. - * - * 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> - * - * Written or modified by: - * La Monte H.P. Yarroll <piggy@acm.org> - * Karl Knutson <karl@athena.chicago.il.us> - */ - -#include <linux/types.h> -#include <net/sctp/sctp.h> -#include <net/sctp/sm.h> - -/* Initialize a block of memory as a command sequence. */ -int sctp_init_cmd_seq(sctp_cmd_seq_t *seq) -{ - memset(seq, 0, sizeof(sctp_cmd_seq_t)); - return 1; /* We always succeed. */ -} - -/* Add a command to a sctp_cmd_seq_t. - * Return 0 if the command sequence is full. - */ -void sctp_add_cmd_sf(sctp_cmd_seq_t *seq, sctp_verb_t verb, sctp_arg_t obj) -{ - BUG_ON(seq->next_free_slot >= SCTP_MAX_NUM_COMMANDS); - - seq->cmds[seq->next_free_slot].verb = verb; - seq->cmds[seq->next_free_slot++].obj = obj; -} - -/* Return the next command structure in a sctp_cmd_seq. - * Returns NULL at the end of the sequence. - */ -sctp_cmd_t *sctp_next_cmd(sctp_cmd_seq_t *seq) -{ - sctp_cmd_t *retval = NULL; - - if (seq->next_cmd < seq->next_free_slot) - retval = &seq->cmds[seq->next_cmd++]; - - return retval; -} - diff --git a/net/sctp/outqueue.c b/net/sctp/outqueue.c index 9c77947c0597..d31435e559b2 100644 --- a/net/sctp/outqueue.c +++ b/net/sctp/outqueue.c @@ -1025,7 +1025,6 @@ static int sctp_outq_flush(struct sctp_outq *q, int rtx_timeout) sctp_outq_head_data(q, chunk); goto sctp_flush_out; - break; case SCTP_XMIT_OK: /* The sender is in the SHUTDOWN-PENDING state, diff --git a/net/sctp/sm_statefuns.c b/net/sctp/sm_statefuns.c index 5170a1ff95a1..d3f1ea460c50 100644 --- a/net/sctp/sm_statefuns.c +++ b/net/sctp/sm_statefuns.c @@ -4182,7 +4182,6 @@ sctp_disposition_t sctp_sf_unk_chunk(struct net *net, case SCTP_CID_ACTION_DISCARD: /* Discard the packet. */ return sctp_sf_pdiscard(net, ep, asoc, type, arg, commands); - break; case SCTP_CID_ACTION_DISCARD_ERR: /* Generate an ERROR chunk as response. */ hdr = unk_chunk->chunk_hdr; @@ -4198,11 +4197,9 @@ sctp_disposition_t sctp_sf_unk_chunk(struct net *net, /* Discard the packet. */ sctp_sf_pdiscard(net, ep, asoc, type, arg, commands); return SCTP_DISPOSITION_CONSUME; - break; case SCTP_CID_ACTION_SKIP: /* Skip the chunk. */ return SCTP_DISPOSITION_DISCARD; - break; case SCTP_CID_ACTION_SKIP_ERR: /* Generate an ERROR chunk as response. */ hdr = unk_chunk->chunk_hdr; @@ -4216,7 +4213,6 @@ sctp_disposition_t sctp_sf_unk_chunk(struct net *net, } /* Skip the chunk. */ return SCTP_DISPOSITION_CONSUME; - break; default: break; } diff --git a/net/sctp/sysctl.c b/net/sctp/sysctl.c index 12c7e01c2677..2e9ada10fd84 100644 --- a/net/sctp/sysctl.c +++ b/net/sctp/sysctl.c @@ -424,8 +424,9 @@ static int proc_sctp_do_alpha_beta(struct ctl_table *ctl, int write, void __user *buffer, size_t *lenp, loff_t *ppos) { - pr_warn_once("Changing rto_alpha or rto_beta may lead to " - "suboptimal rtt/srtt estimations!\n"); + if (write) + pr_warn_once("Changing rto_alpha or rto_beta may lead to " + "suboptimal rtt/srtt estimations!\n"); return proc_dointvec_minmax(ctl, write, buffer, lenp, ppos); } diff --git a/net/sctp/transport.c b/net/sctp/transport.c index 7dd672fa651f..b10e047bbd15 100644 --- a/net/sctp/transport.c +++ b/net/sctp/transport.c @@ -594,15 +594,16 @@ void sctp_transport_burst_reset(struct sctp_transport *t) } /* What is the next timeout value for this transport? */ -unsigned long sctp_transport_timeout(struct sctp_transport *t) +unsigned long sctp_transport_timeout(struct sctp_transport *trans) { - unsigned long timeout; - timeout = t->rto + sctp_jitter(t->rto); - if ((t->state != SCTP_UNCONFIRMED) && - (t->state != SCTP_PF)) - timeout += t->hbinterval; - timeout += jiffies; - return timeout; + /* RTO + timer slack +/- 50% of RTO */ + unsigned long timeout = (trans->rto >> 1) + prandom_u32_max(trans->rto); + + if (trans->state != SCTP_UNCONFIRMED && + trans->state != SCTP_PF) + timeout += trans->hbinterval; + + return timeout + jiffies; } /* Reset transport variables to their initial values */ |