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Louis Scalbert b51fe77ac8 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 16:40:18 +00:00
.github github: Add rebase label on PR if it's > 50 commits behind 2023-05-09 09:37:23 +03:00
alpine docker: Use openssl instead of libressl 2023-07-31 11:04:30 +03:00
babeld Merge pull request #13333 from donaldsharp/vrf_bitmap_cleanup 2023-07-04 22:11:11 +03:00
bfdd *: remove ZEBRA_INTERFACE_VRF_UPDATE 2023-10-07 10:06:39 +08:00
bgpd bgpd: Ignore RFC8212 for BGP Confederations 2024-07-01 22:31:00 +03:00
debian FRR Release 9.1.1 2024-06-06 11:31:02 -05:00
doc pimd: fix dr-priority range 2024-05-09 13:54:42 +00:00
docker docker: Install the apk packages regardless of the platform 2023-07-31 11:05:15 +03:00
eigrpd eigrp: use correct memory pool on interface deletion 2023-10-11 14:19:23 +00:00
fpm *: auto-convert to SPDX License IDs 2023-02-09 14:09:11 +01:00
gdb *: Rename thread.[ch] to event.[ch] 2023-03-24 08:32:16 -04:00
grpc *: manual SPDX License ID conversions 2023-02-09 14:09:07 +01:00
include bgpd,lib,sharpd,zebra: srv6 introduce multiple segs/SIDs in nexthop 2023-09-20 15:07:15 +02:00
isisd isisd: fix crash when calculating the neighbor spanning tree based on the fragmented LSP 2024-07-16 14:08:00 +00:00
ldpd ldpd: fix wrong gtsm count 2024-07-02 17:50:31 +00:00
lib lib: fix copy srte_color from zapi_nexthop structure 2024-06-12 12:40:32 +00:00
m4 build: fix sed regex in Lua macro 2022-12-08 12:39:17 +01:00
mgmtd mgmtd: fix local validation 2023-11-08 13:50:36 +00:00
mlag build: fix AM_LDFLAGS usage (and gcov) 2021-07-21 17:10:08 +02:00
nhrpd nhrpd: Fix nhrp_peer leak 2024-06-05 13:34:18 +03:00
ospf6d ospf6d: Prevent heap-buffer-overflow with unknown type 2024-05-31 15:10:37 +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 19:32:19 +00:00
pathd pathd: add no pcep command 2023-10-31 16:05:32 +00:00
pbrd pbrd: Fix PBR handling for last rule deletion 2024-01-25 08:01:07 +00:00
pceplib *: auto-convert to SPDX License IDs 2023-02-09 14:09:11 +01:00
pimd pimd: fix crash on non-existent interface 2024-07-22 16:40:18 +00:00
pkgsrc mgmtd: Bringup MGMTD daemon and datastore module support 2023-03-21 22:08:32 -04:00
python [ospfd]: add support for RFC 5709 HMAC-SHA Auth 2023-09-16 07:38:23 +03:30
qpb mgmtd: Bringup MGMTD daemon and datastore module support 2023-03-21 22:08:32 -04:00
redhat FRR Release 9.1.1 2024-06-06 11:31:02 -05:00
ripd ripd: Change the start value of sequence 1 to 0 2024-07-01 17:37:51 +00:00
ripngd *: remove ZEBRA_INTERFACE_VRF_UPDATE 2023-10-07 10:06:39 +08:00
sharpd *: Do not cast to the same type as the destination is 2023-09-29 10:24:16 +03:00
snapcraft snapcraft: Use libyang 2.1.80 2023-07-20 21:46:38 +03:00
staticd zebra: fix missing static routes 2024-07-15 18:46:25 +00:00
tests topotests: do not check table version 2024-05-17 11:27:39 +00:00
tools tools: fix frr-reload multiple no description cmds 2024-02-08 22:04:57 +01:00
vrrpd Merge pull request #13731 from cyberstorm-mauritius/cid1519841 2023-06-21 23:15:41 +05:30
vtysh lib,vtysh: fix show route map JSON output 2023-11-28 13:47:41 +00:00
watchfrr watchfrr: Extend ignore option to daemon being killed 2023-10-19 15:49:16 +00:00
yang pimd: fix dr-priority range 2024-05-09 13:54:42 +00:00
zebra zebra: Fix to avoid two Vrfs with same table ids 2024-07-14 00:14:29 +00:00
.clang-format lib: add dynamic array type 2023-06-27 18:00:56 -04:00
.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 doc: configure: add configure option to generate .ccls file 2023-05-18 09:32:32 -04:00
.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 *: manual SPDX License ID conversions 2023-02-09 14:09:07 +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 9.1.1 2024-06-06 11:31:02 -05:00
COPYING *: sort out & explain licenses used in FRR 2023-02-09 12:46:13 +01:00
Makefile.am build: clean up mgmtd lib protobuf make syntax 2023-03-27 16:44:27 -04:00
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