ru 6b01296394 rn_walktree*() compute the next leaf before applying a function ... to current leaves because function may vanish the current node. If parent RTA_GENMASK route has a clone (a "cloning clone"), an rn_walktree_from() starting from parent will cause another walk starting from clone. If a function is either rt_fixdelete() or rt_fixchange(), this recursive walk may vanish the leaf that is remembered by an outer walk (the "next leaf" above), panicing a system when it resumes with an outer walk. The following script paniced my single-user mode booted system: : sysctl net.inet.ip.forwarding=1 : ipfw add 1 allow ip from any to any : ifconfig lo0 127.1 : route add -net 10 -genmask 255.255.255.0 127.1 : telnet 10.1 # rt_fixchange() panic : telnet 10.2 : telnet 10.1 : route delete -net 10 # rt_fixdelete() panic For the time being, avoid these races by disallowing recursive walks in rt_fixchange() and rt_fixdelete(). Also, make a slight optimization in the rtrequest(RTM_RESOLVE) case: there is no reason to call rt_fixchange() in this case. PR: kern/37606 MFC after: 5 days		2002-12-23 13:12:41 +00:00
..
bpf_compat.h	o Untangle the confusion with the malloc flags {M_WAITOK, M_NOWAIT} and	2002-12-19 22:58:27 +00:00
bpf_filter.c
bpf.c	correct function declarations of stubs used for building w/o device bpf	2002-11-19 02:50:46 +00:00
bpf.h	o add support for multiple link types per interface (e.g. 802.11 and Ethernet)	2002-11-14 23:24:13 +00:00
bpfdesc.h	o add support for multiple link types per interface (e.g. 802.11 and Ethernet)	2002-11-14 23:24:13 +00:00
bridge.c	SMP locking for ifnet list.	2002-12-22 05:35:03 +00:00
bridge.h	network interface and link layer changes:	2002-11-15 00:00:15 +00:00
bsd_comp.c	Be consistent about functions being static.	2002-10-16 10:45:53 +00:00
ethernet.h	general cleanups mostly aimed at improving portability of drivers	2002-11-14 23:28:47 +00:00
fddi.h	network interface and link layer changes:	2002-11-15 00:00:15 +00:00
if_arc.h	s/__attribute__((__packed__))/__packed/g	2002-09-23 06:25:08 +00:00
if_arcsubr.c	network interface and link layer changes:	2002-11-15 00:00:15 +00:00
if_arp.h
if_atm.h
if_atmsubr.c	network interface and link layer changes:	2002-11-15 00:00:15 +00:00
if_disc.c	network interface and link layer changes:	2002-11-15 00:00:15 +00:00
if_dl.h
if_ef.c	SMP locking for ifnet list.	2002-12-22 05:35:03 +00:00
if_ethersubr.c	o Untangle the confusion with the malloc flags {M_WAITOK, M_NOWAIT} and	2002-12-19 22:58:27 +00:00
if_faith.c	network interface and link layer changes:	2002-11-15 00:00:15 +00:00
if_fddisubr.c	network interface and link layer changes:	2002-11-15 00:00:15 +00:00
if_gif.c	network interface and link layer changes:	2002-11-15 00:00:15 +00:00
if_gif.h	- after gif_set_tunnel(), psrc/pdst may be null. set IFF_RUNNING accordingly.	2002-10-16 19:49:37 +00:00
if_gre.c	network interface and link layer changes:	2002-11-15 00:00:15 +00:00
if_gre.h	MFS: recognize gre packets used in the WCCP protocol.	2002-12-07 14:22:05 +00:00
if_ieee80211.h
if_iso88025subr.c	Use if_printf(ifp, "blah") instead of	2002-10-21 02:51:56 +00:00
if_llc.h	s/__attribute__((__packed__))/__packed/g	2002-09-23 06:25:08 +00:00
if_loop.c	Under some circumstances, the loopback interface will allocate a new	2002-12-18 15:34:17 +00:00
if_media.c
if_media.h	Add some additional 802.11 media definitions.	2002-07-14 21:58:19 +00:00
if_mib.c
if_mib.h
if_ppp.c	network interface and link layer changes:	2002-11-15 00:00:15 +00:00
if_ppp.h	$Id$ -> $FreeBSD$	1999-08-28 01:08:13 +00:00
if_pppvar.h	Make ppp(4) devices clonable and unloadable.	2002-08-09 15:30:48 +00:00
if_sl.c	network interface and link layer changes:	2002-11-15 00:00:15 +00:00
if_slvar.h	sc_lasttime and sc_starttime are time_t's, not long's.	2001-10-27 20:31:24 +00:00
if_sppp.h
if_spppsubr.c	Be consistent about functions being static.	2002-10-16 10:45:53 +00:00
if_stf.c	network interface and link layer changes:	2002-11-15 00:00:15 +00:00
if_stf.h
if_tap.c	network interface and link layer changes:	2002-11-15 00:00:15 +00:00
if_tap.h
if_tapvar.h
if_tun.c	network interface and link layer changes:	2002-11-15 00:00:15 +00:00
if_tun.h
if_tunvar.h
if_types.h
if_var.h	SMP locking for ifnet list.	2002-12-22 05:35:03 +00:00
if_vlan_var.h	o eliminate separate callback interface for h/w tagged input packets; instead	2002-11-14 23:43:16 +00:00
if_vlan.c	o eliminate separate callback interface for h/w tagged input packets; instead	2002-11-14 23:43:16 +00:00
if.c	SMP locking for ifnet list.	2002-12-22 05:35:03 +00:00
if.h	o add IF_*bps macros for netbsd compatibility	2002-11-14 23:16:18 +00:00
intrq.c
intrq.h
iso88025.h	use __packed/__aligned rather than GCC-specific __attribute__.	2002-09-23 06:35:33 +00:00
net_osdep.c
net_osdep.h	Lock up ifaddr reference counts.	2002-12-18 11:46:59 +00:00
netisr.c	Moved netisr code from kern/kern_intr.c to net/netisr.c as threatened in a	2002-09-22 05:56:41 +00:00
netisr.h	Slight whitespace cleanup. Whitespace sync to MAC tree.	2002-07-27 19:53:02 +00:00
pfil.c
pfil.h
pfkeyv2.h	add definitions for RIPEMD-160 HMAC and Skipjack encryption algorithms,	2002-10-16 02:18:56 +00:00
ppp_comp.h
ppp_deflate.c	Be consistent about functions being static.	2002-10-16 10:45:53 +00:00
ppp_defs.h
ppp_tty.c	Use if_printf(ifp, "blah") instead of printf("ppp%d: blah", ifp->if_unit).	2002-10-21 03:41:58 +00:00
radix.c	o Untangle the confusion with the malloc flags {M_WAITOK, M_NOWAIT} and	2002-12-19 22:58:27 +00:00
radix.h	o Untangle the confusion with the malloc flags {M_WAITOK, M_NOWAIT} and	2002-12-19 22:58:27 +00:00
raw_cb.c	o Untangle the confusion with the malloc flags {M_WAITOK, M_NOWAIT} and	2002-12-19 22:58:27 +00:00
raw_cb.h
raw_usrreq.c	Back out some style changes. They are not urgent,	2002-11-20 19:00:54 +00:00
route.c	rn_walktree*() compute the next leaf before applying a function	2002-12-23 13:12:41 +00:00
route.h
rtsock.c	SMP locking for ifnet list.	2002-12-22 05:35:03 +00:00
slcompress.c	Replace various spelling with FALLTHROUGH which is lint()able	2002-08-25 13:23:09 +00:00
slcompress.h
slip.h
zlib.c	Fix instances of macros with improperly parenthasized arguments.	2002-11-09 12:55:07 +00:00
zlib.h