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Louis Scalbert 1dc6fb0b22 pimd: fix crash on non-existent interface 
Fix the following crash when pim options are (un)configured on an
non-existent interface.

> r1(config)# int fgljdsf
> r1(config-if)# no ip pim unicast-bsm
> vtysh: error reading from pimd: Connection reset by peer (104)Warning: closing connection to pimd because of an I/O error!

> #0  raise (sig=<optimized out>) at ../sysdeps/unix/sysv/linux/raise.c:50
> #1  0x00007f70c8f32249 in core_handler (signo=11, siginfo=0x7fffff88e4f0, context=0x7fffff88e3c0) at lib/sigevent.c:258
> #2  <signal handler called>
> #3  0x0000556cfdd9b16d in lib_interface_pim_address_family_unicast_bsm_modify (args=0x7fffff88f130) at pimd/pim_nb_config.c:1910
> #4  0x00007f70c8efdcb5 in nb_callback_modify (context=0x556d00032b60, nb_node=0x556cffeeb9b0, event=NB_EV_APPLY, dnode=0x556d00031670, resource=0x556d00032b48, errmsg=0x7fffff88f710 "", errmsg_len=8192)
>     at lib/northbound.c:1538
> #5  0x00007f70c8efe949 in nb_callback_configuration (context=0x556d00032b60, event=NB_EV_APPLY, change=0x556d00032b10, errmsg=0x7fffff88f710 "", errmsg_len=8192) at lib/northbound.c:1888
> #6  0x00007f70c8efee82 in nb_transaction_process (event=NB_EV_APPLY, transaction=0x556d00032b60, errmsg=0x7fffff88f710 "", errmsg_len=8192) at lib/northbound.c:2016
> #7  0x00007f70c8efd658 in nb_candidate_commit_apply (transaction=0x556d00032b60, save_transaction=true, transaction_id=0x0, errmsg=0x7fffff88f710 "", errmsg_len=8192) at lib/northbound.c:1356
> #8  0x00007f70c8efd78e in nb_candidate_commit (context=..., candidate=0x556cffeb0e80, save_transaction=true, comment=0x0, transaction_id=0x0, errmsg=0x7fffff88f710 "", errmsg_len=8192) at lib/northbound.c:1389
> #9  0x00007f70c8f03e58 in nb_cli_classic_commit (vty=0x556d00025a80) at lib/northbound_cli.c:51
> #10 0x00007f70c8f043f8 in nb_cli_apply_changes_internal (vty=0x556d00025a80,
>     xpath_base=0x7fffff893bb0 "/frr-interface:lib/interface[name='fgljdsf']/frr-pim:pim/address-family[address-family='frr-routing:ipv4']", clear_pending=false) at lib/northbound_cli.c:178
> #11 0x00007f70c8f0475d in nb_cli_apply_changes (vty=0x556d00025a80, xpath_base_fmt=0x556cfdde9fe0 "./frr-pim:pim/address-family[address-family='%s']") at lib/northbound_cli.c:234
> #12 0x0000556cfdd8298f in pim_process_no_unicast_bsm_cmd (vty=0x556d00025a80) at pimd/pim_cmd_common.c:3493
> #13 0x0000556cfddcf782 in no_ip_pim_ucast_bsm (self=0x556cfde40b20 <no_ip_pim_ucast_bsm_cmd>, vty=0x556d00025a80, argc=4, argv=0x556d00031500) at pimd/pim_cmd.c:4950
> #14 0x00007f70c8e942f0 in cmd_execute_command_real (vline=0x556d00032070, vty=0x556d00025a80, cmd=0x0, up_level=0) at lib/command.c:1002
> #15 0x00007f70c8e94451 in cmd_execute_command (vline=0x556d00032070, vty=0x556d00025a80, cmd=0x0, vtysh=0) at lib/command.c:1061
> #16 0x00007f70c8e9499f in cmd_execute (vty=0x556d00025a80, cmd=0x556d00030320 "no ip pim unicast-bsm", matched=0x0, vtysh=0) at lib/command.c:1227
> #17 0x00007f70c8f51e44 in vty_command (vty=0x556d00025a80, buf=0x556d00030320 "no ip pim unicast-bsm") at lib/vty.c:616
> #18 0x00007f70c8f53bdd in vty_execute (vty=0x556d00025a80) at lib/vty.c:1379
> #19 0x00007f70c8f55d59 in vtysh_read (thread=0x7fffff896600) at lib/vty.c:2374
> #20 0x00007f70c8f4b209 in event_call (thread=0x7fffff896600) at lib/event.c:2011
> #21 0x00007f70c8ed109e in frr_run (master=0x556cffdb4ea0) at lib/libfrr.c:1217
> #22 0x0000556cfdddec12 in main (argc=2, argv=0x7fffff896828, envp=0x7fffff896840) at pimd/pim_main.c:165
> (gdb) f 3
> #3  0x0000556cfdd9b16d in lib_interface_pim_address_family_unicast_bsm_modify (args=0x7fffff88f130) at pimd/pim_nb_config.c:1910
> 1910			pim_ifp->ucast_bsm_accept =
> (gdb) list
> 1905		case NB_EV_ABORT:
> 1906			break;
> 1907		case NB_EV_APPLY:
> 1908			ifp = nb_running_get_entry(args->dnode, NULL, true);
> 1909			pim_ifp = ifp->info;
> 1910			pim_ifp->ucast_bsm_accept =
> 1911				yang_dnode_get_bool(args->dnode, NULL);
> 1912
> 1913			break;
> 1914		}
> (gdb) p pim_ifp
> $1 = (struct pim_interface *) 0x0

Fixes: 3bb513c399 ("lib: adapt to version 2 of libyang")
Signed-off-by: Louis Scalbert <louis.scalbert@6wind.com>
(cherry picked from commit 6952bea5cd)
2024-07-22 16:40:09 +00:00
.github github: Mark the build as failed if 'do not merge' label is set 2023-12-22 10:29:52 +02:00
alpine docker: Fix post function for Alpine build (package) 2024-03-12 20:34:30 +00:00
babeld *: create a single registry of daemons' default port values 2024-02-01 11:40:02 -05:00
bfdd *: create a single registry of daemons' default port values 2024-02-01 11:40:02 -05:00
bgpd bgpd: Ignore RFC8212 for BGP Confederations 2024-07-01 14:19:52 +00:00
debian FRR Release 10.0.1 2024-06-06 11:30:49 -05:00
doc pimd: fix dr-priority range 2024-05-09 13:54:46 +00:00
docker docker: Do not use pip Python package manager 2024-03-12 20:34:30 +00:00
eigrpd *: create a single registry of daemons' default port values 2024-02-01 11:40:02 -05:00
fpm *: create a single registry of daemons' default port values 2024-02-01 11:40:02 -05:00
gdb lib: add simplified native msg support 2023-12-26 08:34:56 -05:00
grpc *: manual SPDX License ID conversions 2023-02-09 14:09:07 +01:00
include lib: Drop include/linux/mroute[6].h 2024-03-12 20:34:30 +00:00
isisd isisd: fix crash when calculating the neighbor spanning tree based on the fragmented LSP 2024-07-16 14:07:59 +00:00
ldpd ldpd: fix wrong gtsm count 2024-07-02 17:50:23 +00:00
lib Merge pull request #16203 from FRRouting/mergify/bp/stable/10.0/pr-16191 2024-06-14 15:31:52 +03:00
m4 build: add recursion limit for AX_RECURSIVE_EVAL 2024-01-27 19:01:19 +01:00
mgmtd mgmtd: change error message 2024-03-07 07:26:36 +00:00
mlag build: fix AM_LDFLAGS usage (and gcov) 2021-07-21 17:10:08 +02:00
nhrpd nhrpd: cleans up shortcut cache entries on termination 2024-06-05 21:40:05 +00:00
ospf6d ospf6d: OSPFv3 route change comparision fixed for ASBR-only change 2024-06-02 15:22:21 +00:00
ospfclient *: Convert event.h to frrevent.h 2023-03-24 08:32:17 -04:00
ospfd ospfd: protect call to get_edge() in ospf_te.c 2024-05-24 19:32:20 +00:00
pathd *: create a single registry of daemons' default port values 2024-02-01 11:40:02 -05:00
pbrd *: create a single registry of daemons' default port values 2024-02-01 11:40:02 -05:00
pceplib Merge pull request #15215 from donaldsharp/pceplib_fixup 2024-01-25 09:59:59 +02:00
pimd pimd: fix crash on non-existent interface 2024-07-22 16:40:09 +00:00
pkgsrc build: homologize path handling 2024-01-27 19:02:52 +01:00
python build: remove mgmtd exception from xref2vtysh 2024-01-28 23:28:40 +02:00
qpb qpb: Add missing #include nexthop.h 2024-02-10 00:44:50 +01:00
redhat FRR Release 10.0.1 2024-06-06 11:30:49 -05:00
ripd ripd: Change the start value of sequence 1 to 0 2024-07-01 17:37:46 +00:00
ripngd ripngd: fix "clear ipv6 ripng" command 2024-03-09 10:16:38 +00:00
sharpd *: create a single registry of daemons' default port values 2024-02-01 11:40:02 -05:00
snapcraft debian, redhat, snapcraft: Libyang min version is 2.1.128 2024-04-17 15:11:31 +00:00
staticd zebra: fix missing static routes 2024-07-15 18:46:25 +00:00
tests tests: Test if RFC 8212 is not involved for BGP confederations 2024-07-01 14:19:52 +00:00
tools tools: Handle seq num for BGP as-path in frr-reload.py 2024-04-30 11:57:47 +00:00
vrrpd *: create a single registry of daemons' default port values 2024-02-01 11:40:02 -05:00
vtysh vtysh: Fix show route-map command when calling via do 2024-04-20 13:07:05 +00:00
watchfrr build: homologize path handling 2024-01-27 19:02:52 +01:00
yang pimd: fix dr-priority range 2024-05-09 13:54:46 +00:00
zebra zebra: fix evpn mh bond member proto reinstall 2024-06-21 06:47:48 +00:00
.clang-format tools: add more libyang iter macros to .clang-format 2023-12-28 17:52:57 +00:00
.dockerignore docker: Make docker image on CentOS 7 2019-11-26 19:29:30 +00:00
.flake8 style: add format checker config that matches FRR style standards 2023-04-18 05:18:26 -04:00
.git-blame-ignore-revs tools: Ignore mass renaming of topotests for git blame 2021-05-11 14:14:26 +03:00
.gitignore tests: add YANG notification test 2024-01-30 14:54:47 -05:00
.isort.cfg style: add format checker config that matches FRR style standards 2023-04-18 05:18:26 -04:00
.pylintrc style: add format checker config that matches FRR style standards 2023-04-18 05:18:26 -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: update packaging & docs for dir changes 2024-01-27 19:01:19 +01:00
config.version.in build: carry --with-pkg-extra-version into tarballs 2018-10-24 15:11:50 +02:00
configure.ac FRR Release 10.0.1 2024-06-06 11:30:49 -05:00
COPYING *: sort out & explain licenses used in FRR 2023-02-09 12:46:13 +01:00
Makefile.am build: homologize path handling 2024-01-27 19:02:52 +01:00
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