Krishnasamy R [Mon, 11 Nov 2024 09:59:31 +0000 (01:59 -0800)]
bgpd: fix resolvedPrefix in show nexthop json output
While populating the nexthop info for "show bgp nexthop json", resolvedPrefix
is added in parent json object instead of json_nexthop object.
This results in displaying wrong resolvedPrefix for nexthops.
Fixing the same by adding resolvedPrefix to json_nexthop object, so that
the proper resolvedPrefix would be displayed for the respective nexthop
Signed-off-by: Krishnasamy R <krishnasamyr@nvidia.com>
Rajasekar Raja [Mon, 21 Oct 2024 17:53:27 +0000 (10:53 -0700)]
bgpd: Fix for match source-protocol in route-map for redistribute cmd
A redistribute cmd can have a route-map attached to it and adding the
match source-protocol to that route-map means BGP to filter which
protocol routes to accept among the bunch of routes zebra is sending.
CID 1601478: Uninitialized variables (UNINIT)
Using uninitialized value "mbefore.real.tv_usec" when calling "event_consumed_time".
Fixes: 3e3a666331e1e44683b17ab1fd78afc47c5d2677 ("lib: Add ability to track time in individual routemaps") Signed-off-by: Donatas Abraitis <donatas@opensourcerouting.org>
Donald Sharp [Thu, 7 Nov 2024 16:31:59 +0000 (11:31 -0500)]
bgpd: In bgp_withdraw attempt to avoid a if statement on every pass
We have this:
if ( (safi == SAFI_UNICAST) && ...)
do stuff
if ( (safi == SAFI_MPLS_VPN) && ... )
do stuff
this leads to having to test safi multiple times if safi is
SAFI_UNICAST. Let's make it a else if as that we know that
the safi is going to not change.
bgpd: Set LLGR stale routes for all the paths including addpath
Without this patch we set only the first path for the route (if multiple exist)
as LLGR stale and stop doing that for the rest of the paths, which is wrong.
Andrew Cooks [Wed, 6 Nov 2024 01:06:31 +0000 (11:06 +1000)]
ospf6d: remove redundant null ptr check
Fix defect flagged by Coverity:
*** CID 1599957: Null pointer dereferences (REVERSE_INULL)
/ospf6d/ospf6_intra.c: 581 in ospf6_link_lsa_get_prefix_str()
575 int buflen, int pos)
576 {
577 struct ospf6_link_lsa *link_lsa = lsa_after_header(lsa->header);
578 struct ospf6_prefix *prefix = nth_prefix(lsa->header, pos);
579 struct in6_addr in6 = { 0 };
580
>>> CID 1599957: Null pointer dereferences (REVERSE_INULL)
>>> Null-checking "lsa" suggests that it may be null, but it has already been dereferenced on all paths leading to the check.
581 if (!lsa || !prefix || !buf || buflen < (1 + INET6_ADDRSTRLEN))
582 return NULL;
583
584 /* position zero is used for the lladdr in the body of the LSA */
585 if (pos == 0) {
586 inet_ntop(AF_INET6, &link_lsa->linklocal_addr, buf, buflen);
The check for lsa being not-null happens in ospf6_lsdb_show() and
first dereference happens in ospf6_lsa_show_summary()
Signed-off-by: Andrew Cooks <acooks.at.bda@gmail.com>
With this patch, we reset the session only if it's a _REAL_ BFD down event, which
means we trigger session reset if BFD session is established earlier than BGP.
Donald Sharp [Fri, 25 Oct 2024 15:28:45 +0000 (11:28 -0400)]
tests: Add a topology that supports a large number of ecmp
Add a basic topology that allows the testing of BGP and zebra
at scale. I built this to help me find and fix problems with
a large number of bgp peers. Since I plan to keep using this
and as I understand it there are future plans to take this
higher, I would like to add this as a test that people can invoke
with this command:
Acee [Tue, 5 Nov 2024 15:03:28 +0000 (10:03 -0500)]
ospfd: Fix assert in LSA refresh interval setting
Under certain timing conditions, the current logic asserts in
ospf_lsa_refresh_delay(). While this isn't readily reproducible,
the only explanation is that the conversion from struct timeval
to milliseconds is 0 due to rounding off the microseconds.
Donald Sharp [Thu, 5 Sep 2024 13:11:04 +0000 (09:11 -0400)]
zebra: Don't display the vrf if not using namespace based vrfs
Currently when doing a `show ip route table XXXX`, zebra is displaying
the current default vrf as the vrf we are in. We are displaying a
table not a vrf. This is only true if you are not using namespace
based vrf's, so modify the output to display accordingly.
Donald Sharp [Mon, 30 Sep 2024 16:41:06 +0000 (12:41 -0400)]
zebra: Delay some processing until after startup is finished
Currently zebra starts the graceful restart timer as well as
allows connections from clients before all data is read in
from the kernel as well as the possiblity of allowing client
connections before this happens as well.
Let's move the graceful restart timer start till after this is
done as well as not allowing client connections till then as well.
Donald Sharp [Mon, 28 Oct 2024 21:52:54 +0000 (17:52 -0400)]
lib: Remove counter and a function
The `alloc` counter was tracking the current active
number of events in the system and if it went to
0 when freeing a new one it would assert. This
assert is a duplicate of what would happen with the
XFREE in the same situation. As such it is not
necessary.
Also remove the `event_master_free_unused` function
from the system.
Donald Sharp [Mon, 28 Oct 2024 21:51:04 +0000 (17:51 -0400)]
bgpd: Remove call into event_master_free_unused
This call was originally put into place to help reduce
memory problems associated with bgp having a bajillion
events under load and then we would have a bunch of events
ready to be used on the unused list. In the meantime
code was put into place that limited the depth of the
unused list to 10 elements. This call has now become
unnecessary. Let's just remove it.
The ability for the wheel code to display the name of what
wheel was actually being run was removed from the system.
Since we can no longer do this and it's been 4 years since it's
been in, let's just remove this bit of dead code.
anlan_cs [Thu, 31 Oct 2024 14:44:05 +0000 (22:44 +0800)]
zebra: fix missing kernel routes
The `rib_update_handle_kernel_route_down_possibility()` didn't consider
the kernel routes ( blackhole ) without interface. When some other
interfaces are down, these kernel routes will be wrongly removed.
Donald Sharp [Wed, 30 Oct 2024 20:09:01 +0000 (16:09 -0400)]
bgpd: Move RFC 8212 check for inbound before filter in bgp_update
Currently the code to check to see if any input filters are
applicable is *before* the RFC 8212 check to see if we have
any filters at all. As such we have already tested for this,
so let's move this check for RFC 8212 to immediately before
the input filter test.
Donald Sharp [Wed, 30 Oct 2024 19:44:12 +0000 (15:44 -0400)]
bgpd: Refactor bgp_update some for nexthop reachability
The nexthop reachability code was cut-n-pasted 2 times
with just a tiny bit of difference. If we ever change
that it becomes `fun` to keep them in sync. Since this
is more important than full on speed of code let's abstract
and get bgp_update() to be a bit easier to maintain.
Donald Sharp [Wed, 30 Oct 2024 17:11:35 +0000 (13:11 -0400)]
bgpd: In bgp_update() for mac addrs ensure we are dealing with evpn
The code is just arbitrarily checking to see if there are any
mac addresses associated with a prefix. This makes no
sense from the perspective that it can only happen as
an evpn route. Let's not make non-evpn people pay
the price to check this data.
Donald Sharp [Wed, 30 Oct 2024 16:48:35 +0000 (12:48 -0400)]
bgpd: In bgp_update try to optimize is_loop_check variable
The variable is_loop_check is being set and then later
we test against it multiple times. Move the setting
of whether or not to check for as loops to where it
is tested against and stop testing it multiple times.
Donald Sharp [Wed, 30 Oct 2024 15:14:56 +0000 (11:14 -0400)]
bgpd: Only set bgp_labels in bgp_update if we have num_labels
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.
Donald Sharp [Wed, 30 Oct 2024 15:05:11 +0000 (11:05 -0400)]
bgpd: allowas_in and aspath_loop_count only used in one if statement
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.
Donald Sharp [Wed, 30 Oct 2024 14:15:42 +0000 (10:15 -0400)]
lib: Replace usage of in6addr_cmp with memcmp
memcmp will return and act exactly the same as in6addr_cmp
but it does it significantly faster than how in6addr_cmp
does it. Let this be a lesson for implementing something
that is a duplicate of what is provided by the c library.
Donatas Abraitis [Thu, 31 Oct 2024 08:47:48 +0000 (10:47 +0200)]
zebra: Add missing new line for help string
```
-A, --asic-offload FRR is interacting with an asic underneath the linux kernel
--v6-with-v4-nexthops Underlying dataplane supports v6 routes with v4 nexthops -s, --nl-bufsize Set netlink receive buffer size
```
Fixes: 1f5611c06d1c243b42279748788f0627793ead9c ("zebra: Allow zebra cli to accept v6 routes with v4 nexthops") Signed-off-by: Donatas Abraitis <donatas@opensourcerouting.org>
projects / matthieu / frr.git / log