tteras/quagga - tteras' quagga tree

	Commit message (Collapse)	Author	Age	Files	Lines
*	From endo@suri.co.jp Fri Jan 17 23:36:30 2003patch.z16824.nsm.kill.neighbour	paul	2003-01-17	3	-0/+1866
\| \| \| \| \| \| \| \| \| \| \| \| \| \| \| \| \| \| \| \| \| \| \| \| \| \| \|	Date: Fri, 20 Dec 2002 17:58:43 +0900 From: Masahiko Endo <endo@suri.co.jp> Reply-To: zebra@zebra.org To: zebra@zebra.org Cc: kunihiro@zebra.org Subject: [zebra 16824] [PATCH] nsm_kill_neighbor [ The following text is in the "ISO-2022-JP" character set. ] [ Your display is set for the "ISO-8859-1" character set. ] [ Some characters may be displayed incorrectly. ] Hi Ishiguro-san, Here is my problem analysis against the case that the ospfd crashes when an interface is brought down. When the ospfd receives a ZEBRA message "ZEBRA_INTERFACE_DOWN" from zebra daemon, the ospfd performs bunch of ospf-interface cleanup for the notified zebra-interface. There are cases that neighbor instance "nbr", which will be removed afterward, may scheduled in the NSM thread event queue. And when the NSM event thread is fired, dereference for this already freed "nbr" pointer causes SIGSEGV. Please take a look at following timeline of processing sequences.
*	Kevin C Miller <kevinm@andrew.cmu.edu>patch.z16681.ospfd.nssa	paul	2002-12-13	7	-59/+140
\| \| \| \|	[zebra 16681] OSPF NSSA Patches
*	[zebra 14631] Generic PtP and RFC3021 interface addressing supportpatch.z14631.ptp.rfc3021	paul	2002-12-13	2	-4/+4
\|
*	zebra link state detection supportpatch.z12269.linkstate	paul	2002-12-13	5	-13/+13
\|
*	ospfd Point-to-Multipoint supportpatch.z14800.ospfd.ptmp	paul	2002-12-13	3	-11/+72
\|
*	Greg Troxel <gdt@ir.bbn.com>patch.z15715.ospf.md5	paul	2002-12-13	1	-2/+13
\| \| \| \| \| \|	[zebra 15715] FIX for ospf md5 authentication problem, finally! fix copy of ospf packet buffer
*	zebra-ospfd-md5auth-seqnum.patch - paulj - change OSPF md5 sequence numberpatch.z15646.ospfd.seqnum.time	paul	2002-12-13	1	-1/+4
\| \| \| \|	to be derived from time() to speed up synching after restart of ospfd
*	Initial revision	paul	2002-12-13	50	-0/+44393