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[src/trunk]: src/sys/net Add the id check for TERM_ACK
details: https://anonhg.NetBSD.org/src/rev/8914ac1c3fff
branches: trunk
changeset: 946384:8914ac1c3fff
user: yamaguchi <yamaguchi%NetBSD.org@localhost>
date: Wed Nov 25 10:08:22 2020 +0000
description:
Add the id check for TERM_ACK
diffstat:
sys/net/if_spppsubr.c | 16 ++++++++++++++--
1 files changed, 14 insertions(+), 2 deletions(-)
diffs (37 lines):
diff -r 6abefcddd24f -r 8914ac1c3fff sys/net/if_spppsubr.c
--- a/sys/net/if_spppsubr.c Wed Nov 25 10:05:40 2020 +0000
+++ b/sys/net/if_spppsubr.c Wed Nov 25 10:08:22 2020 +0000
@@ -1,4 +1,4 @@
-/* $NetBSD: if_spppsubr.c,v 1.206 2020/11/25 10:05:40 yamaguchi Exp $ */
+/* $NetBSD: if_spppsubr.c,v 1.207 2020/11/25 10:08:22 yamaguchi Exp $ */
/*
* Synchronous PPP/Cisco link level subroutines.
@@ -41,7 +41,7 @@
*/
#include <sys/cdefs.h>
-__KERNEL_RCSID(0, "$NetBSD: if_spppsubr.c,v 1.206 2020/11/25 10:05:40 yamaguchi Exp $");
+__KERNEL_RCSID(0, "$NetBSD: if_spppsubr.c,v 1.207 2020/11/25 10:08:22 yamaguchi Exp $");
#if defined(_KERNEL_OPT)
#include "opt_inet.h"
@@ -1717,6 +1717,18 @@
sppp_wq_add(sp->wq_cp, &sp->scp[cp->protoidx].work_rtr);
break;
case TERM_ACK:
+ if (h->ident != sp->scp[cp->protoidx].confid &&
+ h->ident != sp->scp[cp->protoidx].seq) {
+ if (debug)
+ addlog("%s: %s id mismatch "
+ "0x%x != 0x%x and 0x%x != %0lx\n",
+ ifp->if_xname, cp->name,
+ h->ident, sp->scp[cp->protoidx].confid,
+ h->ident, sp->scp[cp->protoidx].seq);
+ if_statinc(ifp, if_ierrors);
+ break;
+ }
+
sppp_wq_add(sp->wq_cp, &sp->scp[cp->protoidx].work_rta);
break;
case CODE_REJ:
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