From 102a0743326a03cd1a1202ceda21e175b7d3575c Mon Sep 17 00:00:00 2001
From: hc <hc@nodka.com>
Date: Tue, 20 Feb 2024 01:20:52 +0000
Subject: [PATCH] add new system file
---
kernel/net/sctp/outqueue.c | 57 +++++++++++++++++++++------------------------------------
1 files changed, 21 insertions(+), 36 deletions(-)
diff --git a/kernel/net/sctp/outqueue.c b/kernel/net/sctp/outqueue.c
index d6e83a3..83a89dc 100644
--- a/kernel/net/sctp/outqueue.c
+++ b/kernel/net/sctp/outqueue.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.
@@ -8,22 +9,6 @@
*
* These functions implement the sctp_outq class. The outqueue handles
* bundling and queueing of outgoing SCTP chunks.
- *
- * 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):
@@ -213,7 +198,7 @@
INIT_LIST_HEAD(&q->retransmit);
INIT_LIST_HEAD(&q->sacked);
INIT_LIST_HEAD(&q->abandoned);
- sctp_sched_set_sched(asoc, SCTP_SS_DEFAULT);
+ sctp_sched_set_sched(asoc, sctp_sk(asoc->base.sk)->default_ss);
}
/* Free the outqueue structure and any related pending chunks.
@@ -295,7 +280,7 @@
/* Put a new chunk in an sctp_outq. */
void sctp_outq_tail(struct sctp_outq *q, struct sctp_chunk *chunk, gfp_t gfp)
{
- struct net *net = sock_net(q->asoc->base.sk);
+ struct net *net = q->asoc->base.net;
pr_debug("%s: outq:%p, chunk:%p[%s]\n", __func__, q, chunk,
chunk && chunk->chunk_hdr ?
@@ -386,9 +371,7 @@
asoc->outqueue.outstanding_bytes -= sctp_data_size(chk);
}
- msg_len -= SCTP_DATA_SNDSIZE(chk) +
- sizeof(struct sk_buff) +
- sizeof(struct sctp_chunk);
+ msg_len -= chk->skb->truesize + sizeof(struct sctp_chunk);
if (msg_len <= 0)
break;
}
@@ -401,6 +384,7 @@
{
struct sctp_outq *q = &asoc->outqueue;
struct sctp_chunk *chk, *temp;
+ struct sctp_stream_out *sout;
q->sched->unsched_all(&asoc->stream);
@@ -415,16 +399,16 @@
sctp_sched_dequeue_common(q, chk);
asoc->sent_cnt_removable--;
asoc->abandoned_unsent[SCTP_PR_INDEX(PRIO)]++;
- if (chk->sinfo.sinfo_stream < asoc->stream.outcnt) {
- struct sctp_stream_out *streamout =
- SCTP_SO(&asoc->stream, chk->sinfo.sinfo_stream);
- streamout->ext->abandoned_unsent[SCTP_PR_INDEX(PRIO)]++;
- }
+ sout = SCTP_SO(&asoc->stream, chk->sinfo.sinfo_stream);
+ sout->ext->abandoned_unsent[SCTP_PR_INDEX(PRIO)]++;
- msg_len -= SCTP_DATA_SNDSIZE(chk) +
- sizeof(struct sk_buff) +
- sizeof(struct sctp_chunk);
+ /* clear out_curr if all frag chunks are pruned */
+ if (asoc->stream.out_curr == sout &&
+ list_is_last(&chk->frag_list, &chk->msg->chunks))
+ asoc->stream.out_curr = NULL;
+
+ msg_len -= chk->skb->truesize + sizeof(struct sctp_chunk);
sctp_chunk_free(chk);
if (msg_len <= 0)
break;
@@ -553,7 +537,7 @@
void sctp_retransmit(struct sctp_outq *q, struct sctp_transport *transport,
enum sctp_retransmit_reason reason)
{
- struct net *net = sock_net(q->asoc->base.sk);
+ struct net *net = q->asoc->base.net;
switch (reason) {
case SCTP_RTXR_T3_RTX:
@@ -931,7 +915,7 @@
case SCTP_CID_ABORT:
if (sctp_test_T_bit(chunk))
ctx->packet->vtag = ctx->asoc->c.my_vtag;
- /* fallthru */
+ fallthrough;
/* The following chunks are "response" chunks, i.e.
* they are generated in response to something we
@@ -946,7 +930,7 @@
case SCTP_CID_ECN_CWR:
case SCTP_CID_ASCONF_ACK:
one_packet = 1;
- /* Fall through */
+ fallthrough;
case SCTP_CID_SACK:
case SCTP_CID_HEARTBEAT:
@@ -1049,7 +1033,7 @@
if (!ctx->packet || !ctx->packet->has_cookie_echo)
return;
- /* fall through */
+ fallthrough;
case SCTP_STATE_ESTABLISHED:
case SCTP_STATE_SHUTDOWN_PENDING:
case SCTP_STATE_SHUTDOWN_RECEIVED:
@@ -1259,8 +1243,9 @@
transport_list = &asoc->peer.transport_addr_list;
/* SCTP path tracepoint for congestion control debugging. */
- list_for_each_entry(transport, transport_list, transports) {
- trace_sctp_probe_path(transport, asoc);
+ if (trace_sctp_probe_path_enabled()) {
+ list_for_each_entry(transport, transport_list, transports)
+ trace_sctp_probe_path(transport, asoc);
}
sack_ctsn = ntohl(sack->cum_tsn_ack);
@@ -1909,6 +1894,6 @@
if (ftsn_chunk) {
list_add_tail(&ftsn_chunk->list, &q->control_chunk_list);
- SCTP_INC_STATS(sock_net(asoc->base.sk), SCTP_MIB_OUTCTRLCHUNKS);
+ SCTP_INC_STATS(asoc->base.net, SCTP_MIB_OUTCTRLCHUNKS);
}
}
--
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