The command fast-reroute lfa tiebreaker [downstream | lowest-backup-metric | node-protecting] index (1-255) [level-1 | level-2] will overwrite configurations with the same index but different types. This is because the index is set as the key in frr-isisd.yang. However, the lfa_tiebreaker_cmp function uses a tuple (index, type) as the key. Therefore, the yang file should be modified to stay in sync with the business logic.
Test Scenario:
On RouterA, first configure fast-reroute lfa tiebreaker downstream index 100 level-1, then configure fast-reroute lfa tiebreaker lowest-backup-metric index 100 level-1, and check the configuration:
!
router isis 10
fast-reroute lfa tiebreaker lowest-backup-metric index 100 level-1
exit
!
Signed-off-by: baozhen-H3C <bao.zhen@h3c.com>
For auto configured value RD value comes as NULL,
switching back to original change will ensure to cover
for both auto and user configured RD value in JSON.
tor-11# show bgp vrf blue ipv4 unicast route-leak json
{
"vrf":"blue",
"afiSafi":"ipv4Unicast",
"importFromVrfs":[
"purple"
],
"importRts":"10.10.3.11:6",
"exportToVrfs":[
"purple"
],
"routeDistinguisher":"(null)", <<<<<
"exportRts":"10.10.3.11:10"
}
Signed-off-by: Chirag Shah <chirag@nvidia.com>
Upon zebra shutdown hash_clean_and_free is called
where user free function is passed,
The free function should not call hash_release
which lead to double free of hash bucket.
Fix:
The fix is to avoid calling hash_release from
free function if its called from hash_clean_and_free
path.
10 0x00007f0422b7df1f in free () from /lib/x86_64-linux-gnu/libc.so.6
11 0x00007f0422edd779 in qfree (mt=0x7f0423047ca0 <MTYPE_HASH_BUCKET>,
ptr=0x55fc8bc81980) at ../lib/memory.c:130
12 0x00007f0422eb97e2 in hash_clean (hash=0x55fc8b979a60,
free_func=0x55fc8a529478 <svd_nh_del_terminate>) at
../lib/hash.c:290
13 0x00007f0422eb98a1 in hash_clean_and_free (hash=0x55fc8a675920
<svd_nh_table>, free_func=0x55fc8a529478 <svd_nh_del_terminate>) at
../lib/hash.c:305
14 0x000055fc8a5323a5 in zebra_vxlan_terminate () at
../zebra/zebra_vxlan.c:6099
15 0x000055fc8a4c9227 in zebra_router_terminate () at
../zebra/zebra_router.c:276
16 0x000055fc8a4413b3 in zebra_finalize (dummy=0x7fffb881c1d0) at
../zebra/main.c:269
17 0x00007f0422f44387 in event_call (thread=0x7fffb881c1d0) at
../lib/event.c:2011
18 0x00007f0422ecb6fa in frr_run (master=0x55fc8b733cb0) at
../lib/libfrr.c:1243
19 0x000055fc8a441987 in main (argc=14, argv=0x7fffb881c4a8) at
../zebra/main.c:584
Signed-off-by: Chirag Shah <chirag@nvidia.com>
Add a new test case that re-add the deleted SIDs and verifies that all
SIDs are added back to the RIB.
Signed-off-by: Carmine Scarpitta <cscarpit@cisco.com>
Add a new test case that deletes a SID and verifies that only this
SID has been removed from the RIB.
Signed-off-by: Carmine Scarpitta <cscarpit@cisco.com>
When a user wants to delete a specific SRv6 SID, he executes the
`no sid X:X::X:X/M` command.
However, by mistake, in addition to deleting the SID requested by the
user, this command also removes all other SIDs.
This happens because `no sid X:X::X:X/M` triggers a destroy operation
on the wrong xpath `frr-staticd:staticd/segment-routing/srv6`.
This commit fixes the issue by replacing the wrong xpath
`frr-staticd:staticd/segment-routing/srv6` with the correct xpath
`frr-staticd:staticd/segment-routing/srv6/static-sids/sid[sid='%s']`.
This ensures that the `no sid X:X::X:X/M` command only deletes the SID
that was requested by the user.
Signed-off-by: Carmine Scarpitta <cscarpit@cisco.com>
Add a topotest to verify the newly introduced CLI to support
steering of IPv4 traffic over an SRv6 SID list.
Signed-off-by: Carmine Scarpitta <cscarpit@cisco.com>
staticd already has a CLI to steer IPv6 traffic over a given SRv6 SID
list:
```
vrf vrf10
ipv6 route 2001:db8:1:1::/64 sr0 segments fcbb:bbbb:1:2:3:fe00::
```
This PR extends the existing CLI `ip route` to support steering of IPv4
traffic over an SRv6 SID list.
```
vrf vrf10
ip route 10.0.0.0/24 sr0 segments fcbb:bbbb:1:2:3:fe00::
```
Signed-off-by: Carmine Scarpitta <cscarpit@cisco.com>
staticd already has a CLI to steer IPv6 traffic over a given SRv6 SID
list:
```
ipv6 route 2001:db8:1:1::/64 sr0 segments fcbb:bbbb:1:2:3:fe00::
```
This PR extends the existing CLI `ip route` to support steering of IPv4
traffic over an SRv6 SID list.
```
ip route 10.0.0.0/24 sr0 segments fcbb:bbbb:1:2:3:fe00::
```
Signed-off-by: Carmine Scarpitta <cscarpit@cisco.com>
staticd already has a CLI to steer IPv6 traffic over a given SRv6 SID
list:
```
vrf vrf10
ipv6 route 2001:db8:1:1::/64 sr0 segments fcbb:bbbb:1:2:3:fe00::
```
This PR extends the existing CLI `ip route` to support steering of IPv4
traffic over an SRv6 SID list.
```
vrf vrf10
ip route 10.0.0.0/24 sr0 segments fcbb:bbbb:1:2:3:fe00::
```
Signed-off-by: Carmine Scarpitta <cscarpit@cisco.com>
staticd already has a CLI to steer IPv6 traffic over a given SRv6 SID
list:
```
ipv6 route 2001:db8:1:1::/64 sr0 segments fcbb:bbbb:1:2:3:fe00::
```
This PR extends the existing CLI `ip route` to support steering of IPv4
traffic over an SRv6 SID list.
```
ip route 10.0.0.0/24 sr0 segments fcbb:bbbb:1:2:3:fe00::
```
Signed-off-by: Carmine Scarpitta <cscarpit@cisco.com>
When peering with an EVPN device from other vendor, FRR acting as route
reflector is not able to read nor transmit the label value.
Actually, EVPN AD routes completely ignore the label value in the code,
whereas in some functionalities like evpn-vpws, it is authorised to
carry and propagate label value.
Fix this by handling the label value.
Signed-off-by: Philippe Guibert <philippe.guibert@6wind.com>
Just to make it simpler for compiling with a different default value.
No change to its default value.
Signed-off-by: Enke Chen <enchen@paloaltonetworks.com>
When staticd receives a `ZAPI_SRV6_SID_RELEASED` notification from SRv6
SID Manager, it tries to unset the validity flag of `sid`. But since
the `sid` variable is NULL, we get a NULL pointer dereference.
```
=================================================================
==13815==ERROR: AddressSanitizer: SEGV on unknown address 0x000000000060 (pc 0xc14b813d9eac bp 0xffffcb135a40 sp 0xffffcb135a40 T0)
==13815==The signal is caused by a READ memory access.
==13815==Hint: address points to the zero page.
#0 0xc14b813d9eac in static_zebra_srv6_sid_notify staticd/static_zebra.c:1172
#1 0xe44e7aa2c194 in zclient_read lib/zclient.c:4746
#2 0xe44e7a9b69d8 in event_call lib/event.c:1984
#3 0xe44e7a85ac28 in frr_run lib/libfrr.c:1246
#4 0xc14b813ccf98 in main staticd/static_main.c:193
#5 0xe44e7a4773f8 in __libc_start_call_main ../sysdeps/nptl/libc_start_call_main.h:58
#6 0xe44e7a4774c8 in __libc_start_main_impl ../csu/libc-start.c:392
#7 0xc14b813cc92c in _start (/usr/lib/frr/staticd+0x1c92c)
AddressSanitizer can not provide additional info.
SUMMARY: AddressSanitizer: SEGV staticd/static_zebra.c:1172 in static_zebra_srv6_sid_notify
==13815==ABORTING
```
This commit fixes the problem by doing a SID lookup first. If the SID
can't be found, we log an error and return. If the SID is found, we go
ahead and unset the validity flag.
Signed-off-by: Carmine Scarpitta <cscarpit@cisco.com>
Just to make it simpler for compiling with a different default value.
No change to its default value.
Signed-off-by: Enke Chen <enchen@paloaltonetworks.com>
When you have suppress-fib-pending turned on it is possible
to end up in a situation where the prefix is not withdrawn
from downstream peers.
Here is the timing that I believe is happening:
a) have 2 paths to a peer.
b) receive a withdrawal from 1 path, set BGP_NODE_FIB_INSTALL_PENDING
and send the route install to zebra.
c) receive a withdrawal from the other path.
d) At this point we have a dest->flags set BGP_NODE_FIB_INSTALL_PENDING
old_select the path_info going away, new_select is NULL
e) A bit further down we call group_announce_route() which calls
the code to see if we should advertise the path. It sees the
BGP_NODE_FIB_INSTALL_PENDING flag and says, nope.
f) the route is sent to zebra to withdraw, which unsets the
BGP_NODE_FIB_INSTALL_PENDING.
g) This function winds up and deletes the path_info. Dest now
has no path infos.
h) BGP receives the route install(from step b) and unsets the
BGP_NODE_FIB_INSTALL_PENDING flag
i) BGP receives the route removed from zebra (from step f) and
unsets the flag again.
We know if there is no new_select, let's go ahead and just
unset the PENDING flag to allow the withdrawal to go out
at the time when the second withdrawal is received.
Signed-off-by: Donald Sharp <sharpd@nvidia.com>
When looping through the dplane providers, the worklist was
being populated with items from the last provider and then
the event system was checked to see if we should stop processing.
If the event system says `yes` then the dplane code would stop
and send the worklist to the master zebra pthread for collection.
This obviously skipped the next dplane provider on the list
which is double plus not good.
Signed-off-by: Donald Sharp <sharpd@nvidia.com>
The mutex that wraps access to the output buffer
is being held for the entire time the data is
being generated to send down the pipe. Since
the generation has absolutely nothing to do
with the obuf, let's limit the mutex holding some.
Signed-off-by: Donald Sharp <sharpd@nvidia.com>
The fpm_testing_topo1 didn't turn on the fpm_listener
sending the routes back to zebra to set the asic offload.
Modify the test to tell the fpm_listener to set the offloaded
flag and reflect the route back to the dplane_fpm_nl.c code.
Also modify zebra to expect a response to the underlying fpm listener.
Signed-off-by: Donald Sharp <sharpd@nvidia.com>
In fpm_listener, when a error is detected it would
stop listening and not recover. Modify the code
to close the socket and allow the connection to
recover.
Signed-off-by: Donald Sharp <sharpd@nvidia.com>
A recent code change 29122bc9b8
changed the passing of data up the fpm from passing the
tableid and vrf to the sonic expected tableid contains
the vrfid. This violates the assumptions in the code
that the netlink message passes up the tableid as the
tableid. Additionally this code change did not modify
the rib_find_rn_from_ctx to actually properly decode
what could be passed up. Let's just fix this and let
Sonic carry the patch as appropriate for themselves
since they are not the only users of dplane_fpm_nl.c
Signed-off-by: Donald Sharp <sharpd@nvidia.com>
When called without caps/privs, just return from "change_caps"
instead of exiting - it's possible that a process may not need
privs, but a lib (for example) may use the api.
Signed-off-by: Mark Stapp <mjs@cisco.com>
When looping through the dplane providers, the worklist was
being populated with items from the last provider and then
the event system was checked to see if we should stop processing.
If the event system says `yes` then the dplane code would stop
and send the worklist to the master zebra pthread for collection.
This obviously skipped the next dplane provider on the list
which is double plus not good.
Signed-off-by: Donald Sharp <sharpd@nvidia.com>
