From 9d77db3c730780c8ef5ccd4b66403ff5675cfe4e Mon Sep 17 00:00:00 2001
From: hc <hc@nodka.com>
Date: Mon, 13 May 2024 10:30:14 +0000
Subject: [PATCH] modify sin led gpio
---
kernel/net/sctp/bind_addr.c | 66 ++++++++++++++++++++-------------
1 files changed, 40 insertions(+), 26 deletions(-)
diff --git a/kernel/net/sctp/bind_addr.c b/kernel/net/sctp/bind_addr.c
index f8a2832..6b95d3b 100644
--- a/kernel/net/sctp/bind_addr.c
+++ b/kernel/net/sctp/bind_addr.c
@@ -1,3 +1,4 @@
+// SPDX-License-Identifier: GPL-2.0-or-later
/* SCTP kernel implementation
* (C) Copyright IBM Corp. 2001, 2003
* Copyright (c) Cisco 1999,2000
@@ -7,22 +8,6 @@
* This file is part of the SCTP kernel implementation.
*
* A collection class to handle the storage of transport addresses.
- *
- * 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):
@@ -87,6 +72,12 @@
goto out;
}
}
+
+ /* If somehow no addresses were found that can be used with this
+ * scope, it's an error.
+ */
+ if (list_empty(&dest->address_list))
+ error = -ENETUNREACH;
out:
if (error)
@@ -340,6 +331,34 @@
return match;
}
+int sctp_bind_addrs_check(struct sctp_sock *sp,
+ struct sctp_sock *sp2, int cnt2)
+{
+ struct sctp_bind_addr *bp2 = &sp2->ep->base.bind_addr;
+ struct sctp_bind_addr *bp = &sp->ep->base.bind_addr;
+ struct sctp_sockaddr_entry *laddr, *laddr2;
+ bool exist = false;
+ int cnt = 0;
+
+ rcu_read_lock();
+ list_for_each_entry_rcu(laddr, &bp->address_list, list) {
+ list_for_each_entry_rcu(laddr2, &bp2->address_list, list) {
+ if (sp->pf->af->cmp_addr(&laddr->a, &laddr2->a) &&
+ laddr->valid && laddr2->valid) {
+ exist = true;
+ goto next;
+ }
+ }
+ cnt = 0;
+ break;
+next:
+ cnt++;
+ }
+ rcu_read_unlock();
+
+ return (cnt == cnt2) ? 0 : (exist ? -EEXIST : 1);
+}
+
/* Does the address 'addr' conflict with any addresses in
* the bp.
*/
@@ -383,24 +402,19 @@
{
struct sctp_sockaddr_entry *laddr;
struct sctp_af *af;
- int state = -1;
af = sctp_get_af_specific(addr->sa.sa_family);
if (unlikely(!af))
- return state;
+ return -1;
- rcu_read_lock();
list_for_each_entry_rcu(laddr, &bp->address_list, list) {
if (!laddr->valid)
continue;
- if (af->cmp_addr(&laddr->a, addr)) {
- state = laddr->state;
- break;
- }
+ if (af->cmp_addr(&laddr->a, addr))
+ return laddr->state;
}
- rcu_read_unlock();
- return state;
+ return -1;
}
/* Find the first address in the bind address list that is not present in
@@ -500,7 +514,7 @@
return 0;
/*
* For INIT and INIT-ACK address list, let L be the level of
- * of requested destination address, sender and receiver
+ * requested destination address, sender and receiver
* SHOULD include all of its addresses with level greater
* than or equal to L.
*
--
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