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Donald Sharp c7df55983c pimd: Prevent crash when pimreg already exists. 
If the pimreg device exists but it has not been set to the pim->pimreg pointer we can have
a crash.  Just prevent the crash since it's some sort of startup / re-org the network
issue.

(gdb) bt
0  0x00007f0485b035cb in raise () from /lib/x86_64-linux-gnu/libpthread.so.0
1  0x00007f0485c0fbec in core_handler (signo=6, siginfo=0x7ffdc0198030, context=<optimized out>) at lib/sigevent.c:264
2  <signal handler called>
3  0x00007f04859668eb in raise () from /lib/x86_64-linux-gnu/libc.so.6
4  0x00007f0485951535 in abort () from /lib/x86_64-linux-gnu/libc.so.6
5  0x00007f0485c3af76 in _zlog_assert_failed (xref=xref@entry=0x55692269b940 <_xref.23164>, extra=extra@entry=0x0) at lib/zlog.c:680
6  0x00005569226150d0 in pim_if_new (ifp=0x556922c82900, gm=gm@entry=false, pim=pim@entry=false, ispimreg=ispimreg@entry=true,
    is_vxlan_term=is_vxlan_term@entry=false) at pimd/pim_iface.c:124
7  0x0000556922615140 in pim_if_create_pimreg (pim=pim@entry=0x556922cc11e0) at pimd/pim_iface.c:1549
8  0x0000556922616bc8 in pim_if_create_pimreg (pim=0x556922cc11e0) at pimd/pim_iface.c:1613
9  pim_ifp_create (ifp=0x556922cc0e70) at pimd/pim_iface.c:1641
10 0x00007f0485c32cf9 in zclient_interface_add (cmd=<optimized out>, zclient=<optimized out>, length=<optimized out>, vrf_id=77) at lib/zclient.c:2214
11 0x00007f0485c3346a in zclient_read (thread=<optimized out>) at lib/zclient.c:4003
12 0x00007f0485c215ed in thread_call (thread=thread@entry=0x7ffdc0198880) at lib/thread.c:2008
13 0x00007f0485bdbbc8 in frr_run (master=0x556922a10470) at lib/libfrr.c:1223
14 0x000055692260312b in main (argc=<optimized out>, argv=0x7ffdc0198b98, envp=<optimized out>) at pimd/pim_main.c:176

Signed-off-by: Donald Sharp <sharpd@nvidia.com>
(cherry picked from commit 7ae7a3bfd6)
2023-03-02 06:15:21 +00:00
.github tools: Add commit linter 2023-01-31 13:25:25 +02:00
alpine docker,alpine: Remove isl from dependencies 2023-01-06 23:48:23 +09:00
babeld babeld: Fix filtering against all interfaces 2023-02-06 11:08:25 +00:00
bfdd bfdd: fix size_t format string 2023-01-27 12:01:20 +01:00
bgpd Merge pull request #12898 from FRRouting/mergify/bp/dev/8.5/pr-12888 2023-02-27 13:40:06 -05:00
debian debian: merge changelogs 2023-01-24 18:19:42 +01:00
doc Merge pull request #12715 from opensourcerouting/fix/contribution_guid_squash_random_commits 2023-02-07 10:42:53 -06:00
docker docker: Use Alpine 3.17 as base image 2022-12-02 15:42:00 +02:00
eigrpd *: introduce function for sequence numbers 2023-01-20 15:40:28 -03:00
fpm build: fix AM_LDFLAGS usage (and gcov) 2021-07-21 17:10:08 +02:00
gdb gdb: Add a macro to walk memory allocations 2022-08-24 07:13:29 -04:00
grpc build: fix gRPC build dependencies 2022-10-26 17:12:34 +01:00
include include: add pkt_cls.h to automake headers 2022-11-22 22:35:34 +08:00
isisd *: fix non-const northbound XPath format strings 2023-01-27 12:01:20 +01:00
ldpd Merge pull request #12713 from opensourcerouting/fix/json_naming_deprecation 2023-02-01 15:39:18 -05:00
lib lib, bgpd: bmp was not specifying l2vpn afi 2023-02-24 09:36:57 +00:00
m4 build: fix sed regex in Lua macro 2022-12-08 12:39:17 +01:00
mlag build: fix AM_LDFLAGS usage (and gcov) 2021-07-21 17:10:08 +02:00
nhrpd build, vtysh: extract vtysh commands from .xref 2022-10-26 17:12:34 +01:00
ospf6d *: Drop deprecated incorrect JSON fields with wrong naming 2023-01-31 10:18:28 +02:00
ospfclient ospfclient: remove register "READY" requirement 2023-02-22 16:55:12 +00:00
ospfd ospfd: compare prefix values in host order 2023-02-22 16:55:11 +00:00
pathd *: fix non-const northbound XPath format strings 2023-01-27 12:01:20 +01:00
pbrd pbrd: fix large tableids displayed as negative 2023-02-09 10:48:36 +00:00
pceplib pceplib: add <time.h> include for time_t 2023-02-06 20:31:22 +00:00
pimd pimd: Prevent crash when pimreg already exists. 2023-03-02 06:15:21 +00:00
pkgsrc *: cleanup .gitignore files 2018-09-08 21:30:42 +02:00
python python: hide inet_ntoa from frrbot 2022-10-28 11:18:06 +01:00
qpb qpb: Tell coverity the actual size we are copying 2022-08-02 15:34:43 -04:00
redhat debian, redhat: updating changelog for new release 2022-12-20 09:53:59 -06:00
ripd build, vtysh: extract vtysh commands from .xref 2022-10-26 17:12:34 +01:00
ripngd build, vtysh: extract vtysh commands from .xref 2022-10-26 17:12:34 +01:00
sharpd sharpd: traffic control PoC 2022-11-22 22:35:35 +08:00
snapcraft snapcraft: Add pim6 daemon for PIM IPv6 to snap package 2022-11-19 12:52:36 +01:00
staticd Merge pull request #12695 from opensourcerouting/format-warnings 2023-01-31 09:01:32 -05:00
tests tests: Increase flags from uint32_t to uint64_t 2023-02-27 16:38:49 +02:00
tools tools: Fix missing pbrd in rsyslog.d 45-frr.conf file 2023-02-08 20:41:16 +00:00
vrrpd vrrpd: give null when using null ifp to lookup vr 2023-02-14 14:30:22 +00:00
vtysh vtysh: Schedule shell access for deprecation 2023-02-01 10:29:02 -05:00
watchfrr Merge pull request #12695 from opensourcerouting/format-warnings 2023-01-31 09:01:32 -05:00
yang yang: fix race condition in embedmodel.py mkdir 2023-01-24 18:19:18 +01:00
zebra zebra: Fix other table inactive when ip import-table is on 2023-02-21 16:38:22 +00:00
.clang-format lib: add _last and _prev on typesafe RB/DLIST 2022-03-12 13:23:36 +01:00
.dir-locals.el tests: remove python format block from dir-locals 2021-09-13 10:04:29 -04:00
.dockerignore docker: Make docker image on CentOS 7 2019-11-26 19:29:30 +00:00
.git-blame-ignore-revs tools: Ignore mass renaming of topotests for git blame 2021-05-11 14:14:26 +03:00
.gitignore *: Add some missed make check generated files in .gitignore 2021-09-16 08:13:17 -04:00
.pylintrc tests: micronet: update infra 2021-09-04 09:04:46 -04:00
.travis.yml lib: libyang2 add missed conversion 2021-05-17 22:13:59 -04:00
bootstrap.sh build: turn on automake warnings (& symlinks) 2021-04-21 15:42:37 +02:00
buildtest.sh build: remove --enable-exampledir 2021-06-24 16:42:58 +02:00
config.version.in build: carry --with-pkg-extra-version into tarballs 2018-10-24 15:11:50 +02:00
configure.ac build: enable format string warnings 2023-01-27 12:01:20 +01:00
COPYING *: make consistent & update GPLv2 file headers 2017-05-15 16:37:41 +02:00
COPYING-LGPLv2.1 build: remove LGPL v2.0, add LGPL v2.1 2016-11-15 17:19:38 +09:00
Makefile.am packaging: Reuse frr.logrotate for Debian and Redhat builds 2022-11-08 11:17:56 +02:00
README.md doc: Fix the link that points to Slack invitation in README 2022-03-24 13:13:37 +02:00
stamp-h.in Initial revision 2002-12-13 20:15:29 +00:00
version.h build: make builddir include path consistent 2021-04-21 15:42:33 +02:00

README.md

Icon

FRRouting

FRR is free software that implements and manages various IPv4 and IPv6 routing protocols. It runs on nearly all distributions of Linux and BSD and supports all modern CPU architectures.

FRR currently supports the following protocols:

  • BGP
  • OSPFv2
  • OSPFv3
  • RIPv1
  • RIPv2
  • RIPng
  • IS-IS
  • PIM-SM/MSDP
  • LDP
  • BFD
  • Babel
  • PBR
  • OpenFabric
  • VRRP
  • EIGRP (alpha)
  • NHRP (alpha)

Installation & Use

For source tarballs, see the releases page.

For Debian and its derivatives, use the APT repository at https://deb.frrouting.org/.

Instructions on building and installing from source for supported platforms may be found in the developer docs.

Once installed, please refer to the user guide for instructions on use.

Community

The FRRouting email list server is located here and offers the following public lists:

Topic List
Development dev@lists.frrouting.org
Users & Operators frog@lists.frrouting.org
Announcements announce@lists.frrouting.org

For chat, we currently use Slack. You can join by clicking the "Slack" link under the Participate section of our website.

Contributing

FRR maintains developer's documentation which contains the project workflow and expectations for contributors. Some technical documentation on project internals is also available.

We welcome and appreciate all contributions, no matter how small!

Security

To report security issues, please use our security mailing list:

security [at] lists.frrouting.org