When a BGP flowspec peering stops, the BGP RIB entries for IPv6
flowspec entries are removed, but not the ZEBRA RIB IPv6 entries.
Actually, when calling bgp_zebra_withdraw() function call, only
the AFI_IP parameter is passed to the bgp_pbr_update_entry() function
in charge of the Flowspec add/delete in zebra. Fix this by passing
the AFI parameter to the bgp_zebra_withdraw() function.
Note that using topotest does not show up the problem as the
flowspec driver code is not present and was refused. Without that,
routes are not installed, and can not be uninstalled.
Fixes: 529efa2346 ("bgpd: allow flowspec entries to be announced to zebra")
Link: https://github.com/FRRouting/frr/pull/2025
Signed-off-by: Philippe Guibert <philippe.guibert@6wind.com>
When exiting from a level below the config node, like `router rip`,
vtysh executes a resync by sending "end" and "conf term [file-lock]"
commands to all the daemons. As statet in the description comment, it's
done "in case one of the daemons is somewhere else". I don't think this
actually ever happens, but even if it is, it is a bug in a daemon that
needs to be fixed. This resync was okay before the introduction of
mgmtd, but now it unlocks and locks back the datastores during the
configuration reading process, which can lead to a failure which is
explained in the previous commit.
Signed-off-by: Igor Ryzhov <iryzhov@nfware.com>
When FRR starts, after mgmtd is initialized, backend clients connect to
it and request their config. To supply the config, mgmtd creates a
configuration transaction. At the same time, `vtysh -b` tries to read
the startup config and configure mgmtd, which also creates a
configuration transaction. If these two actions happen at the exact same
time, there's a conflict between them, because only a single
configuration translaction is allowed. Because of that, vtysh fails and
the config is completely ignored.
When starting the config reading, vtysh locks candidate and running
datastores in mgmtd. This commit adds locking of running datastore when
initializing the backend client. It allows to retry locking on the vtysh
side and read the config only when the lock is aquired instead of
failing.
This change also prevents running datastore from being changed during
initialization of backend clients. This could lead to a desynchronized
state between mgmtd and backends.
Signed-off-by: Igor Ryzhov <iryzhov@nfware.com>
Fix duplicate definition of frr_affinity_map_cli_info in libfrr.so.0 and
libmgmt_be_nb.so.0
> =================================================================
> ==3860488==ERROR: AddressSanitizer: odr-violation (0x7f12c98c4d20):
> [1] size=296 'frr_affinity_map_cli_info' lib/affinitymap_cli.c:77:35
> [2] size=296 'frr_affinity_map_cli_info' lib/affinitymap_cli.c:77:35
> These globals were registered at these points:
> [1]:
> #0 0x7f12c9a36f40 in __asan_register_globals ../../../../src/libsanitizer/asan/asan_globals.cpp:341
> #1 0x7f12c9585b7d in _sub_I_00099_1 (/lib/libfrr.so.0+0x185b7d)
> #2 0x7f12ca437fe1 in call_init elf/dl-init.c:72
>
> [2]:
> #0 0x7f12c9a36f40 in __asan_register_globals ../../../../src/libsanitizer/asan/asan_globals.cpp:341
> #1 0x7f12c93824ed in _sub_I_00099_1 (/lib/libmgmt_be_nb.so.0+0x6f4ed)
> #2 0x7f12ca437fe1 in call_init elf/dl-init.c:72
>
> ==3860488==HINT: if you don't care about these errors you may set ASAN_OPTIONS=detect_odr_violation=0
> SUMMARY: AddressSanitizer: odr-violation: global 'frr_affinity_map_cli_info' at lib/affinitymap_cli.c:77:35
> ==3860488==ABORTING
Fixes: dc6ff4c0de ("lib: convert affinity-map to mgmtd")
Signed-off-by: Louis Scalbert <louis.scalbert@6wind.com>
98efa5bc6b ("bgpd: bgp_path_info_extra memory optimization") has removed
SID info from the extra structure.
Do not test for extra presence.
Fixes: 98efa5bc6b ("bgpd: bgp_path_info_extra memory optimization")
Signed-off-by: Louis Scalbert <louis.scalbert@6wind.com>
Not necessarily the correct place for this but there
is no other place and it needs to be called out and I
would rather have some documentation in place. Long
term I would like to add a bunch of frr_pthread documentation
but at this point in time it's not there. We can
re-arrange when that happens.
Signed-off-by: Donald Sharp <sharpd@nvidia.com>
There was a question in regards to how the update-source
choose the ip address for the source when using the `update-source`
command in BGP. Upon looking at the code, I was a but surprised,
so I decided to document this behavior.
Signed-off-by: Donald Sharp <sharpd@nvidia.com>
Since we have a knob to disable sending FQDN capability, it MUST be checked
before sending it using dynamic capabilities.
Signed-off-by: Donatas Abraitis <donatas@opensourcerouting.org>
We don't need to manually load built-in modules. This fixes the
following warning in mgmtd:
```
YANG model "ietf-yang-metadata@*" "*@*"not embedded, trying external file
```
Signed-off-by: Igor Ryzhov <iryzhov@nfware.com>
mgmtd reads config files on its own, it doesn't need libfrr to do that.
The code is already skipped, because mgmtd uses `di->read_in` thread for
config reading and libfrr doesn't reschedule the thread, so this commit
just removes the dead code.
Signed-off-by: Igor Ryzhov <iryzhov@nfware.com>
mgmtd is supposed to only register CLI callbacks. If configuration
callbacks are registered, they are getting called on startup when mgmtd
reads config files, and they can use infrastructure that is not
initialized on mgmtd, or allocate some memory that is never freed.
Signed-off-by: Igor Ryzhov <iryzhov@nfware.com>
