In the interest of speeding up code, there is no point in
attempting to see if a label is usable if the number of labels
passed in is 0. Since that is a much much quicker test than
the bgp_is_valid_label() call, let's test that first.
Additionally, there is no point in walking the label[] array
passed in unless we are in the if statement, so move it inside.
Signed-off-by: Donald Sharp <sharpd@nvidia.com>
In bgp_update(), the two variables allowas_in and aspath_loop_count
are only used when peer->change_local_as is true. Move the retrieval
of the allowas_in data to inside the if statement to save some
(very) small amount of time in bgp_update not gathering this
data unless the particular peer has this set.
Signed-off-by: Donald Sharp <sharpd@nvidia.com>
Traceback (most recent call last):
File "/home/docs/checkouts/readthedocs.org/user_builds/frrouting/envs/latest/lib/python3.11/site-packages/sphinx/config.py", line 529, in eval_config_file
exec(code, namespace) # NoQA: S102
^^^^^^^^^^^^^^^^^^^^^
File "/home/docs/checkouts/readthedocs.org/user_builds/frrouting/checkouts/latest/doc/user/conf.py", line 77, in <module>
html_context["READTHEDOCS"] = True
^^^^^^^^^^^^
NameError: name 'html_context' is not defined
Signed-off-by: Donatas Abraitis <donatas@opensourcerouting.org>
In the case that the RLIMIT_CORE hard limit cannot
be raised on a system, do not fail due to an exception.
Instead, attempt to increase the soft limit to as large
a value as possible (e.g. to the set hard limit).
Signed-off-by: Liam Brady <lbrady@labn.net>
Currently the mroute code was not allowing the mroute
to be sent to the dataplane. This leaves us with a
situation where the routes being installed where never
being set as installed and additionally nht against
the mrib would not work if the route came into existence
after the nexthop tracking was asked for.
Turns out all the pieces where there to let this work.
Modify the code to pass it to the dplane and to send
it back up as having worked.
Signed-off-by: Donald Sharp <sharpd@nvidia.com>
Add a specific debug command to handle srv6 troubleshooting.
Move the srv6 traces that initially were under 'debug zebra packet'
debug.
Signed-off-by: Philippe Guibert <philippe.guibert@6wind.com>
When you have multiple paths to a particular route and a single
path changes. In addition of the other paths are either in
hold down or not established or really just not selected you
could end up with a situation where the bestpath choosen
was a path that was in hold down.
Modify the code such that when there is nothing worse
in bestpath selection for the choosen path, but were
unable to do any sorting, just put the path on the top
of the list and declare it the winner. Else just
do the original and put it at the end.
Signed-off-by: Chirag Shah <chirag@nvidia.com>
Signed-off-by: Donald Sharp <sharpd@nvidia.com>
we have
(gdb) p *path->attr->aspath
$1 = {refcnt = 3, segments = 0x0, json = 0x0, str = 0x55723d0b7470 "", str_len = 0, asnotation = ASNOTATION_PLAIN}
It looks like this aspath is empty, resulting in a size 0 and NULL pointer for path->attr->aspath->segments which leads to the SIGSEGV
fixe: return 0 when segments is null.
Signed-off-by: Francois Dumontet <francois.dumontet@6wind.com>
The algorithm number is encoded on 8 bits and does not require
an unsigned 32 bit value to store the value.
Fixes: cc4926c128 ("isisd,yang: add algorithm-prefix-sid configuration tree")
Signed-off-by: Philippe Guibert <philippe.guibert@6wind.com>
Fix the display of the local label in show bgp.
> r1# show bgp ipv4 labeled-unicast 172.16.2.2/32
> BGP routing table entry for 172.16.2.2/32, version 2
> Local label: 16 <---- MISSING
> Paths: (1 available, best #1, table default, vrf (null))
> Advertised to non peer-group peers:
> 192.168.1.2
> 65501
> 192.168.1.2 from 192.168.1.2 (172.16.2.2)
> Origin IGP, metric 0, valid, external, best (First path received)
> Remote label: 3
> Last update: Fri Oct 25 17:55:45 2024
Fixes: 67f67ba481 ("bgpd: Drop label_ntop/label_pton functions")
Signed-off-by: Louis Scalbert <louis.scalbert@6wind.com>
This only matters to single hop nodes that are adjacent to the bsr. More common
with IPv6 where LL address is used in PIM as the primary address. If the BSR IP
happens to be an address on the same interface, the receiving pim router
rejects the BSR address because it expects the BSR IP to resolve via the LL address
even if we have a connected route for the same BSR IP subnet. Effectively, we want to
allow rpf to be resolved via secondary IPs with connected routes on the same interface,
and not limit them to primary addresses.
Signed-off-by: Jafar Al-Gharaibeh <jafar@atcorp.com>
The bgp_bmp_vrf topotest is randomly failing with similar messages:
> 2024-10-24 16:59:03,037 ERROR: topo: test failed at "bgp_bmp.test_bgp_bmp/test_bmp_bgp_unicast": Checking the updated prefixes has failed ! Generated JSON diff error report:
>
> $->pre-policy->update: expected has key '172.31.0.15/32' which is not present in output
It is particularly unsuccessful when run with valgrind:
> python3 -m pytest -vvss --valgrind-leak-kinds=all --valgrind-extra --valgrind-memleaks bgp_bmp_vrf
bgp_bmp_vrf is configuring a BMP policy on r1 and then some static BGP
prefixes on r2. If for some reasons, the BGP UPDATE arrives to r1 before
the BMP configuration is operational, the UPDATE is not sent to the BMP
server and the test fails.
Pre-configure the BMP policies at startup to avoid this race condition.
Signed-off-by: Louis Scalbert <louis.scalbert@6wind.com>
The bgp_bmp topotest is randomly failing with similar messages:
> 2024-10-24 16:59:03,037 ERROR: topo: test failed at "bgp_bmp.test_bgp_bmp/test_bmp_bgp_unicast": Checking the updated prefixes has failed ! Generated JSON diff error report:
>
> $->pre-policy->update: expected has key '172.31.0.15/32' which is not present in output
It is particularly unsuccessful when run with valgrind:
> python3 -m pytest -vvss --valgrind-leak-kinds=all --valgrind-extra --valgrind-memleaks bgp_bmp
bgp_bmp is configuring a BMP policy on r1 and then some static BGP
prefixes on r2. If for some reasons, the BGP UPDATE arrives to r1 before
the BMP configuration is operational, the UPDATE is not sent to the BMP
server and the test fails.
Pre-configure the BMP policies at startup to avoid this race condition.
Signed-off-by: Louis Scalbert <louis.scalbert@6wind.com>
The BGP BMP VRF topotest is difficult to debug. It does not say which
prefix is not received by BGP or BMP when it fails.
Rework the test to convert the actual BMP logs to JSON and compare the
BGP table and BMP server logs output to expected reference JSON files.
Signed-off-by: Louis Scalbert <louis.scalbert@6wind.com>
