David Lamparter 3f11a103a6 lib: make sure SEGV handler cannot lock up ... Just adding -pthread to gcc options changes libc's behaviour, e.g. making malloc() use proper locking. This means a SEGV inside malloc() (e.g. because malloc bookkeeping structures have been damaged by writing to a broken pointer) can lead to a lockup by the following chain: - random_function() - malloc() --- SEGV - core_handler() - zlog_backtrace_sigsafe() - backtrace() - malloc() This will hang forever waiting for the malloc() lock to be released. Another failure mode is dynamic linking with lazy binding (-z lazy, default). Since backtrace() is seldomly used, this means the call to backtrace() in the core handler can in fact result in the dynamic linker trying to resolve the "backtrace" symbol, which can also deadlock. Add several safeguards to prevent any of this from happening. (Unfortunately, these are not theoretical issues - I found them by running into them headfirst.) Signed-off-by: David Lamparter <equinox@opensourcerouting.org>		2017-03-31 16:22:33 +02:00
..
.gitignore	lib: add grammar_sandbox to .gitignore	2016-12-20 06:39:37 +00:00
agentx.c	build: replace some hardcoding with ./configure	2016-12-20 18:18:44 +01:00
bfd.c	*: Remove non-vrf based ifindex lookup	2017-03-15 10:26:53 -04:00
bfd.h	Expand #defines in command strings	2016-09-25 16:49:39 +00:00
bitfield.h	Merge remote-tracking branch 'cmaster-next' into cmaster-next-releng	2016-11-19 11:58:52 +01:00
buffer.c	*: split & distribute memtypes and stop (re|ab)using lib/ MTYPEs	2016-09-19 16:31:04 -04:00
buffer.h	2005-05-06 Paul Jakma <paul@dishone.st>	2005-05-06 21:25:49 +00:00
checksum.c	lib: force local MIN/MAX macros	2016-09-23 12:12:17 -04:00
checksum.h	lib: improve fletcher checksum validation	2012-10-25 10:15:58 -07:00
command_lex.l	lib: parser: fix allocation counting	2017-01-31 15:28:19 +01:00
command_match.c	Merge pull request #105 from opensourcerouting/cli_merge_step_prep	2017-01-25 07:49:21 -05:00
command_match.h	lib, vtysh: Fix memory leaks, change cmd_element to const	2016-11-12 01:06:32 +00:00
command_parse.y	lib: parser: remove previous deduplication code	2017-02-10 13:38:04 +01:00
command.c	merge: pre-revert inapplicable changes	2017-03-10 14:18:20 +01:00
command.h	lib: define BGP_EVPN_NODE	2017-02-14 13:58:57 +01:00
csv.c	lib: fix remaining coverity issues	2017-02-10 15:04:06 +01:00
csv.h	*: Fix up licensing to be right	2016-11-18 10:14:03 -05:00
distribute.c	vtysh: parsing fixes on distribute-list	2017-03-28 15:48:07 -04:00
distribute.h	lib: Make distribute.c accepts both v4 and v6.	2016-09-26 10:52:41 -04:00
event_counter.c	lib: add event_counter	2016-10-18 08:39:23 -04:00
event_counter.h	lib: add event_counter	2016-10-18 08:39:23 -04:00
fifo.h	lib, bgpd: Remove 'struct fifo' from lib/zebra.h	2016-09-16 21:22:30 -04:00
filter.c	lib: hide away logging internals	2017-03-08 00:15:40 +01:00
filter.h	ldpd: introduce advanced filtering capabilities	2017-02-01 22:03:36 -02:00
getopt1.c	*: make sure zebra.h is always included first	2016-06-09 10:45:22 -04:00
getopt.c	*: make sure zebra.h is always included first	2016-06-09 10:45:22 -04:00
getopt.h	2005-08-10 Greg Troxel <gdt@fnord.ir.bbn.com>	2005-08-10 13:20:03 +00:00
gitversion.pl	build: fix minimal mixup in gitinfo suffix	2013-04-09 17:05:08 +02:00
grammar_sandbox_main.c	lib: remove remaining struct zlog * args	2017-03-08 00:15:40 +01:00
grammar_sandbox.c	lib: sandbox: print vtysh daemon targets	2017-03-28 15:48:07 -04:00
graph.c	lib: graph: fix vector_remove()	2017-01-26 07:05:56 +01:00
graph.h	lib: parser: move allowrepeat to cmd_token	2016-12-16 20:42:01 +01:00
hash.c	*: split & distribute memtypes and stop (re|ab)using lib/ MTYPEs	2016-09-19 16:31:04 -04:00
hash.h	*: split & distribute memtypes and stop (re|ab)using lib/ MTYPEs	2016-09-19 16:31:04 -04:00
if_rmap.c	lib: lib compiles	2016-09-23 21:34:33 +00:00
if_rmap.h	2005-05-06 Paul Jakma <paul@dishone.st>	2005-05-06 21:25:49 +00:00
if.c	bgpd, lib, zebra: Rename if_update_vrf -> if_update	2017-03-15 10:55:42 -04:00
if.h	bgpd, lib, zebra: Rename if_update_vrf -> if_update	2017-03-15 10:55:42 -04:00
imsg-buffer.c	ldpd: adapt the code for Quagga	2016-09-23 09:31:09 -04:00
imsg.c	lib: Fix clang SA warnings.	2017-01-17 18:45:23 -05:00
imsg.h	ldpd: copy original sources from OpenBSD (14/09/2016)	2016-09-23 09:31:05 -04:00
jhash.c	Fix most compiler warnings in default GCC build.	2016-05-26 18:57:39 +00:00
jhash.h	Fix arm compilation failures of sockunion_hash issues	2015-09-08 13:26:57 -07:00
json.c	lib: Allow json to work across different versions.	2017-01-17 18:46:24 -05:00
json.h	lib: Allow json to work across different versions.	2017-01-17 18:46:24 -05:00
keychain.c	*: apply DEFUN_NOSH for node-switch CLI commands	2017-03-28 15:48:07 -04:00
keychain.h	lib: qobj: register ifaces, routemaps & keychains	2016-10-07 09:09:51 -04:00
libfrr.c	lib: Fix missed code	2017-03-10 08:24:55 -05:00
libfrr.h	lib: simplify protocol/log naming	2017-03-08 00:15:40 +01:00
libospf.h	ospfd/ospf6d/zebra: Change interface bandwidth range and auto-cost range to 100G	2016-06-13 09:06:45 -04:00
linklist.c	*: split & distribute memtypes and stop (re|ab)using lib/ MTYPEs	2016-09-19 16:31:04 -04:00
linklist.h	*: remove QUAGGA_NO_DEPRECATED_INTERFACES	2017-02-27 01:14:40 +00:00
log_int.h	lib: hide away logging internals	2017-03-08 00:15:40 +01:00
log.c	lib: make sure SEGV handler cannot lock up	2017-03-31 16:22:33 +02:00
log.h	*: fix some user-visible Quagga remnants	2017-03-08 16:15:10 +01:00
Makefile.am	lib: hide away logging internals	2017-03-08 00:15:40 +01:00
md5.c	*: fix signedness mix-ups	2016-06-07 08:47:49 -04:00
md5.h	*: fix signedness mix-ups	2016-06-07 08:47:49 -04:00
memory_vty.c	build: massively remove needless checks	2016-11-15 14:23:17 +09:00
memory_vty.h	lib: clean/restore memory debugging functions	2016-09-19 16:31:08 -04:00
memory.c	Merge remote-tracking branch 'origin/stable/2.0'	2017-02-07 13:20:12 -05:00
memory.h	lib: replace MIT license with ISC	2016-12-01 17:18:57 +01:00
monotime.h	lib: monotime.h tabs -> spaces	2017-02-27 18:50:51 +00:00
mpls.h	Implement generic label manager	2017-03-20 17:10:41 +01:00
network.c	lib, pimd: Modify writen to retry on certain failures	2016-12-21 20:26:10 -05:00
network.h	lib: add and use set_cloexec()	2016-11-09 13:40:05 +01:00
nexthop.c	Merge remote-tracking branch 'cmaster-next' into cmaster-next-releng	2016-11-28 17:35:08 +01:00
nexthop.h	mpls: add support for LDP LSPs	2016-09-23 09:31:12 -04:00
ns.c	*: apply DEFUN_NOSH for node-switch CLI commands	2017-03-28 15:48:07 -04:00
ns.h	lib: convert namespace code to use red-black trees	2016-11-28 16:18:35 -02:00
openbsd-queue.h	ldpd: copy original sources from OpenBSD (14/09/2016)	2016-09-23 09:31:05 -04:00
openbsd-tree.h	ldpd: copy original sources from OpenBSD (14/09/2016)	2016-09-23 09:31:05 -04:00
pid_output.c	build: massively remove needless checks	2016-11-15 14:23:17 +09:00
plist_int.h	lib: Fix missing plist_int.h	2015-11-03 10:00:30 -08:00
plist.c	lib: hide away logging internals	2017-03-08 00:15:40 +01:00
plist.h	lib: add stream.h, vty.h, zebra.h to plist.h	2017-03-02 02:09:00 +00:00
pqueue.c	*: split & distribute memtypes and stop (re|ab)using lib/ MTYPEs	2016-09-19 16:31:04 -04:00
pqueue.h	lib: use heap to manage timers	2014-04-22 21:17:00 +02:00
prefix.c	*: get rid of zlog(*, LOG_LEVEL, ...)	2017-03-08 00:15:39 +01:00
prefix.h	lib: simplify str2mac and use struct ethaddr structure	2017-02-14 13:59:00 +01:00
privs.c	lib: Don't change uid/gid if we are already the correct uid/gid	2017-01-26 00:45:05 +07:00
privs.h	2005-09-29 Paul Jakma <paul.jakma@sun.com>	2005-09-29 14:39:32 +00:00
ptm_lib.c	lib: Fix possible array overrun	2017-02-01 19:51:31 -05:00
ptm_lib.h	*: Fix up licensing to be right	2016-11-18 10:14:03 -05:00
qobj.c	bgpd: shuffle qobj_init()	2016-12-16 20:42:01 +01:00
qobj.h	lib: make qobj NULL-safe/aware	2016-12-09 17:36:25 +01:00
queue.h	*: fix detection and usage of sys/cdefs.h	2014-08-18 01:50:19 +02:00
route_types.pl	lib: Fix Auto generation of redistribution strings	2017-01-27 15:37:14 -05:00
route_types.txt	nhrpd: implement next hop resolution protocol	2017-03-07 16:20:29 +01:00
routemap.c	*: apply DEFUN_NOSH for node-switch CLI commands	2017-03-28 15:48:07 -04:00
routemap.h	Support for BGP Large Communities	2017-01-18 18:38:53 -05:00
sigevent.c	lib: make sure SEGV handler cannot lock up	2017-03-31 16:22:33 +02:00
sigevent.h	*: use array_size() helper macro	2012-10-25 10:15:59 -07:00
skiplist.c	lib: fix remaining coverity issues	2017-02-10 15:04:06 +01:00
skiplist.h	lib: add skiplist	2016-09-30 13:22:35 -04:00
smux.c	frr: Remove HAVE_IPV6 from code base	2017-01-13 08:05:50 -05:00
smux.h	*: add missing includes	2016-06-07 08:50:09 -04:00
snmp.c	snmp: fix warnings	2016-05-26 15:33:29 +00:00
sockopt.c	*: add frr_init() infrastructure	2017-03-07 23:07:20 +01:00
sockopt.h	*: add frr_init() infrastructure	2017-03-07 23:07:20 +01:00
sockunion.c	*: get rid of zlog(*, LOG_LEVEL, ...)	2017-03-08 00:15:39 +01:00
sockunion.h	frr: Remove HAVE_IPV6 from code base	2017-01-13 08:05:50 -05:00
spf_backoff.c	lib: add SPF back-off implementation	2017-02-22 16:18:40 +01:00
spf_backoff.h	lib: add SPF back-off implementation	2017-02-22 16:18:40 +01:00
srcdest_table.c	lib: Enhance prefix dump for EVPN prefixes	2017-02-14 13:58:58 +01:00
srcdest_table.h	lib: Enhance prefix dump for EVPN prefixes	2017-02-14 13:58:58 +01:00
stream.c	*: split & distribute memtypes and stop (re|ab)using lib/ MTYPEs	2016-09-19 16:31:04 -04:00
stream.h	Update Traffic Engineering Support for OSPFD	2016-09-03 11:05:50 -04:00
strlcat.c	lib: replace strlcpy & strlcat with glibc versions	2016-11-15 17:35:36 +09:00
strlcpy.c	lib: replace strlcpy & strlcat with glibc versions	2016-11-15 17:35:36 +09:00
systemd.c	quagga: Fixup startup to allow consistency between sysV and systemd	2016-04-27 16:04:48 -04:00
systemd.h	quagga: Fixup startup to allow consistency between sysV and systemd	2016-04-27 16:04:48 -04:00
table.c	lib: add cleanup hook to route table	2017-01-30 13:54:46 +01:00
table.h	lib: add cleanup hook to route table	2017-01-30 13:54:46 +01:00
thread.c	*: get rid of zlog(*, LOG_LEVEL, ...)	2017-03-08 00:15:39 +01:00
thread.h	lib: time: remove leftover declarations	2017-03-08 00:15:40 +01:00
vector.c	lib: add vector_unset_value()	2017-01-31 15:28:19 +01:00
vector.h	lib: add vector_unset_value()	2017-01-31 15:28:19 +01:00
version.h.in	build: replace some hardcoding with ./configure	2016-12-20 18:18:44 +01:00
vrf.c	*: apply DEFUN_NOSH for node-switch CLI commands	2017-03-28 15:48:07 -04:00
vrf.h	lib: Add VRF_ALL define	2017-01-23 22:34:49 -05:00
vty.c	*: apply DEFUN_NOSH for node-switch CLI commands	2017-03-28 15:48:07 -04:00
vty.h	Lowercase frr.conf	2017-03-09 09:45:00 -05:00
wheel.c	lib: Add Timer Wheel functionality	2017-01-17 18:40:25 -05:00
wheel.h	lib: Add some documentation to wheel.h	2017-01-18 19:08:04 -05:00
workqueue.c	*: make DEFUN installations file-local	2016-12-01 17:25:56 +01:00
workqueue.h	*: make DEFUN installations file-local	2016-12-01 17:25:56 +01:00
zassert.h	Add missing GPL headers, and copyright claims that certainly apply.	2016-05-26 01:06:59 +00:00
zclient.c	Merge pull request #285 from bingen/label_manager_3	2017-03-21 11:40:20 -04:00
zclient.h	Implement generic label manager	2017-03-20 17:10:41 +01:00
zebra.h	lib: replace AFI_ETHER reference with AFI_L2VPN	2017-02-14 13:59:00 +01:00