Introduce ZEBRA_IF_DUMMY interface flag to identify Linux dummy interfaces [0].
These interfaces behave similarly to loopback interfaces and can be
specially handled by daemons.
[0]: https://github.com/torvalds/linux/blob/master/drivers/net/dummy.c
Signed-off-by: Gabriel Goller <g.goller@proxmox.com>
`no ip rip split-horizon poisoned-reverse` will undo poisoned-reverse and set default behavior which is split-horizon.
By contrast, `no ip rip split-horizon` will undo interface's split-horizon behavior.
Signed-off-by: Shbinging <bingshui@smail.nju.edu.cn>
This PR fixes FRR issue https://github.com/FRRouting/frr/issues/18040. The
OSPFv3 route is locked during the ABR calculation since there are
scenarios under which it is freed. The OSPFv3 ABR computation is
sub-optimal and this PR doesn't attempt to rework it.
Signed-off-by: Acee Lindem <acee@lindem.com>
Creates the default VRF instance after the other VRF instances. The
default VRF instance is created in hidden state. Check that AS number
in show run is correctly written.
Signed-off-by: Louis Scalbert <louis.scalbert@6wind.com>
Upon configuration of a VRF instance that references an absent default
VRF with "import vrf default", the default instance is created in hidden
state. However, the default instance is not properly un-hidden when
configured.
Restore the behavior prior to commit below.
Fixes: 9f7177af13 ("bgpd: fix duplicate BGP instance created with unified config")
Signed-off-by: Louis Scalbert <louis.scalbert@6wind.com>
'import vrf VRF' could define a hidden bgp instance with
the default AS_UNSPECIFIED (i.e. = 1) value.
When a
router bgp AS vrf VRF
gets configured later on, replace this AS_UNSPECIFIED setting
with a requested value.
Fixes: 9680831518 ("bgpd: fix as_pretty mem leaks when un-hiding")
Signed-off-by: Alexander Skorichenko <askorichenko@netgate.com>
Signed-off-by: Louis Scalbert <louis.scalbert@6wind.com>
bgp_process_queue_init() is not called in bgp_create() when leaving the
BGP instance hidden state because of the following goto:
> if (hidden) {
> bgp = bgp_old;
> goto peer_init;
> }
Upon reconfiguration of the default instance, the prefixes are never set
into a meta queue by mq_add_handler(). They are never processed for
zebra RIB installation and announcements of update/withdraw.
Do not delete the BGP process_queue when hiding.
Fixes: 4d0e7a49cf ("bgpd: VRF-Lite fix default bgp delete")
Signed-off-by: Louis Scalbert <louis.scalbert@6wind.com>
When unconfiguring a default BGP instance with VPN SAFI configurations,
the default BGP structure remains but enters a hidden state. Upon
reconfiguration, the instance name incorrectly appears as "VIEW ?"
instead of "VRF default". And the name_pretty pointer
The name_pretty pointer is replaced by another one with the incorrect
name. This also leads to a memory leak as the previous pointer is not
properly freed.
Do not rewrite the instance name.
Fixes: 4d0e7a49cf ("bgpd: VRF-Lite fix default bgp delete")
Signed-off-by: Louis Scalbert <louis.scalbert@6wind.com>
This also fixes a bug with specific (position specified) queries on keyless
lists. If the `get_next` callback is using the parent entry it will probably
crash as the code is passing the list_entry as both parent and child in the
specific lookup case.
There may currently be no code that uses the parent entry if the child entry is
non-NULL, though.
Signed-off-by: Christian Hopps <chopps@labn.net>
The multipath number specified is not available through
the yang data and is not retrievable. Make it so.
At this point in time do not allow this to be set from
yang. Perhaps in the future.
Signed-off-by: Donald Sharp <sharpd@nvidia.com>
With recent commit:
c1adc8f1d6 staticd has started to crash
aproximately 1/10 of the tine in the static_vrf topotest
(gdb) bt
0 __pthread_kill_implementation (no_tid=0, signo=6, threadid=140400982256064) at ./nptl/pthread_kill.c:44
1 __pthread_kill_internal (signo=6, threadid=140400982256064) at ./nptl/pthread_kill.c:78
2 __GI___pthread_kill (threadid=140400982256064, signo=signo@entry=6) at ./nptl/pthread_kill.c:89
3 0x00007fb1a6442476 in __GI_raise (sig=6) at ../sysdeps/posix/raise.c:26
4 0x00007fb1a6950823 in core_handler (signo=6, siginfo=0x7ffd6d832ff0, context=0x7ffd6d832ec0) at lib/sigevent.c:268
5 <signal handler called>
6 __pthread_kill_implementation (no_tid=0, signo=6, threadid=140400982256064) at ./nptl/pthread_kill.c:44
7 __pthread_kill_internal (signo=6, threadid=140400982256064) at ./nptl/pthread_kill.c:78
8 __GI___pthread_kill (threadid=140400982256064, signo=signo@entry=6) at ./nptl/pthread_kill.c:89
9 0x00007fb1a6442476 in __GI_raise (sig=sig@entry=6) at ../sysdeps/posix/raise.c:26
10 0x00007fb1a64287f3 in __GI_abort () at ./stdlib/abort.c:79
11 0x00007fb1a699a422 in _zlog_assert_failed (xref=0x55f7dfd3dac0 <_xref.117>,
extra=0x55f7dfd30c30 "BUG: NH %pFX registered but not in hashtable") at lib/zlog.c:789
12 0x000055f7dfd1201f in static_zebra_nht_register (nh=0x55f7fd2ecd80, reg=true) at staticd/static_zebra.c:333
13 0x000055f7dfd29c9d in static_install_nexthop (nh=0x55f7fd2ecd80) at staticd/static_routes.c:299
14 0x000055f7dfd2a126 in static_fixup_vrf (vrf=0x55f7fd2333a0, stable=0x55f7fd271030, afi=AFI_IP, safi=SAFI_UNICAST)
at staticd/static_routes.c:441
15 0x000055f7dfd2a2be in static_fixup_vrf_ids (vrf=0x55f7fd2333a0) at staticd/static_routes.c:494
16 0x000055f7dfd15b53 in static_vrf_enable (vrf=0x55f7fd2333a0) at staticd/static_vrf.c:124
17 0x00007fb1a696ffa5 in vrf_enable (vrf=0x55f7fd2333a0) at lib/vrf.c:325
18 0x00007fb1a6991c87 in zclient_vrf_add (cmd=33, zclient=0x55f7fd29f740, length=76, vrf_id=8) at lib/zclient.c:2701
19 0x00007fb1a6996cba in zclient_read (thread=0x7ffd6d834230) at lib/zclient.c:4764
20 0x00007fb1a696bd9b in event_call (thread=0x7ffd6d834230) at lib/event.c:2019
21 0x00007fb1a68e1a3a in frr_run (master=0x55f7fd102e10) at lib/libfrr.c:1246
22 0x000055f7dfd1081e in main (argc=7, argv=0x7ffd6d834478, envp=0x7ffd6d8344b8) at staticd/static_main.c:193
Tracking this down, the crash is because the nh believes that is already
registered but lookup fails, causing this assert. Looking at the code
static_fixup_vrf is changing the vrf_id. I put a zlog_debug right
before the change of the nh vrf_id and noticed that the vrf id was
UNKNOWN. So, the code is attempting to register into zebra the nexthop
with a vrf unknown( which will be ignored ).
Modify the code in the registration process to notice that the nh is
still UNKNOWN and as such nothing should be done.
Signed-off-by: Donald Sharp <sharpd@nvidia.com>
Group joining got broken when moving the autorp socket to open/close
as needed. This fixes it so autorp group joining is properly handled
as part of opening the socket.
Signed-off-by: Nathan Bahr <nbahr@atcorp.com>
Bind the autorp socket to the vrf device.
Also fixed mroute socket to use vrf_bind instead of directly
setting the socket option.
Signed-off-by: Nathan Bahr <nbahr@atcorp.com>
In 9461953914 and
8ebcc02328, transmission of PIM register and
register stop messages was changed to use a separate socket. However, that
socket is not bound to a possible VRF, so the messages were sent in the
default VRF instead. Call vrf_bind() once after socket creation and when the
VRF is ready to ensure transmission in the correct VRF. vrf_bind() handles
the non-VRF case (i.e. VRF_DEFAULT) automatically, so it may be called
unconditionally.
Signed-off-by: Martin Buck <mb-tmp-tvguho.pbz@gromit.dyndns.org>
As part of the upstream master commit (f3575f61c7 bgpd: Sort the
bgp_path_inf) the snippet of the code for dmed check condition
left out, which leads to an issue of selecting incorrect bestpath.
As an example:
During the bestpath selection local route looses to another path due
to dmed condition being hit.
The snippet of the logs:
2025/02/20 03:06:20.131441 BGP: [JW7VP-K1YVV]
[2]:[0]:[48]:[00:92:00:00:00:10](VRF default): Comparing path
27.0.0.7 flags Valid with path Static announcement flags Selected Valid Attr Changed Unsorted
2025/02/20 03:06:20.131445 BGP: [SYTDR-QV6X9] [2]:[0]:[48]:[00:92:00:00:00:10]: path 27.0.0.7 loses to path Static announcement as ES 03:44:38:39:ff:ff:02:00:00:01 is same and local
2025/02/20 03:06:20.131452 BGP: [JW7VP-K1YVV] [2]:[0]:[48]:[00:92:00:00:00:10](VRF default): Comparing path 27.0.0.8 flags Valid with path Static announcement flags Selected Valid Attr Changed Unsorted
2025/02/20 03:06:20.131456 BGP: [SYTDR-QV6X9] [2]:[0]:[48]:[00:92:00:00:00:10]: path 27.0.0.8 loses to path Static announcement as ES 03:44:38:39:ff:ff:02:00:00:01 is same and local
2025/02/20 03:06:20.131458 BGP: [WEWEC-8SE72] [2]:[0]:[48]:[00:92:00:00:00:10](VRF default): path Static announcement is the bestpath from AS 0 <<<< static is best
2025/02/20 03:06:20.131463 BGP: [Z3A78-GM3G5] bgp_best_selection: [2]:[0]:[48]:[00:92:00:00:00:10](VRF default) pi 27.0.0.7 dmed
2025/02/20 03:06:20.131467 BGP: [Z3A78-GM3G5] bgp_best_selection: [2]:[0]:[48]:[00:92:00:00:00:10](VRF default) pi 27.0.0.8 dmed
2025/02/20 03:06:20.131471 BGP: [N6CTF-2RSKS] [2]:[0]:[48]:[00:92:00:00:00:10](VRF default): After path selection, newbest is path 27.0.0.7 oldbest was Static announce
Signed-off-by: Donald Sharp <sharpd@nvidia.com>
