Commit Graph

7225 Commits

Author SHA1 Message Date
Donald Sharp
afd7526408 bgpd: Ensure BGP does not stop monitoring nexthops
In some cases BGP can be monitoring the same prefix
in both the nexthop and import check tables.  If this
is the case, when unregistering one bnc from one table
make sure we are not still registered in the other

Example of the problem:

r1(config-router)# address-family ipv4 uni
r1(config-router-af)# no network 192.168.100.41/32
r1(config-router-af)# exit

r1# show bgp import-check-table
Current BGP import check cache:
r1# show bgp nexthop
Current BGP nexthop cache:
 192.168.100.41 valid [IGP metric 0], #paths 1, peer 192.168.100.41
  if r1-eth0
  Last update: Wed Dec  6 11:01:40 2023

BGP now believes it is only watching 192.168.100.41 in the nexthop
cache, but zebra doesn't have anything:

r1# show ip import-check
VRF default:
 Resolve via default: on
r1# show ip nht
VRF default:
 Resolve via default: on

So if anything happens to the route that is being matched for
192.168.100.41 bgp is no longer going to be notified about this.

The source of this problem is that zebra has dropped the two different
tables into 1 table, while bgp has 2 tables to track this.  The solution
to this problem (other than the rewrite that is being done ) is to have
BGP have a bit of smarts about looking in both tables for the bnc and
if found in both don't send the delete of the prefix tracking to zebra.

Signed-off-by: Donald Sharp <sharpd@nvidia.com>
(cherry picked from commit 40dd3946a6)
2023-12-08 09:41:29 +00:00
Chirag Shah
5f720cf3f6 bgpd: check bgp evpn instance presence in soo
(pi=pi@entry=0x55e86ec1a5a0, evp=evp@entry=0x7fff4edc2160)
    at bgpd/bgp_evpn.c:3623
3623    bgpd/bgp_evpn.c: No such file or directory.
(gdb) info locals
bgp_evpn = 0x0
macvrf_soo = <optimized out>
ret = false
__func__ = <optimized out>

	(pi=pi@entry=0x55e86ec1a5a0, evp=evp@entry=0x7fff4edc2160)
    at bgpd/bgp_evpn.c:3623
	(bgp=bgp@entry=0x55e86e9cd010, afi=afi@entry=AFI_L2VPN,
    safi=safi@entry=SAFI_EVPN, p=p@entry=0x0,
	pi=pi@entry=0x55e86ec1a5a0, import=import@entry=1,
	in_vrf_rt=true,
    in_vni_rt=true) at bgpd/bgp_evpn.c:4200
	(import=1, pi=pi@entry=0x55e86ec1a5a0, p=p@entry=0x0,
    safi=safi@entry=SAFI_EVPN, afi=afi@entry=AFI_L2VPN,
	bgp=bgp@entry=0x55e86e9cd010) at bgpd/bgp_evpn.c:6266
	afi=afi@entry=AFI_L2VPN, safi=safi@entry=SAFI_EVPN,
    p=p@entry=0x7fff4edc2160, pi=pi@entry=0x55e86ec1a5a0)
	at bgpd/bgp_evpn.c:6266
	(peer=peer@entry=0x55e86ea35400, p=p@entry=0x7fff4edc2160,
    addpath_id=addpath_id@entry=0, attr=attr@entry=0x7fff4edc4400,
	afi=afi@entry=AFI_L2VPN, safi=<optimized out>,
    safi@entry=SAFI_EVPN, type=9, sub_type=0, prd=0x7fff4edc2120,
	label=0x7fff4edc211c, num_labels=1,
    soft_reconfig=0, evpn=0x7fff4edc2130) at bgpd/bgp_route.c:4805
	(peer=peer@entry=0x55e86ea35400, afi=afi@entry=AFI_L2VPN,
    safi=safi@entry=SAFI_EVPN, attr=attr@entry=0x7fff4edc4400,
	pfx=<optimized out>, psize=psize@entry=34,
    addpath_id=0) at bgpd/bgp_evpn.c:4922
	(peer=0x55e86ea35400, attr=0x7fff4edc4400, packet=<optimized out>,
    withdraw=0) at bgpd/bgp_evpn.c:5997
	(peer=peer@entry=0x55e86ea35400, attr=attr@entry=0x7fff4edc4400,
    packet=packet@entry=0x7fff4edc43d0,
	mp_withdraw=mp_withdraw@entry=0) at bgpd/bgp_packet.c:363
	(peer=peer@entry=0x55e86ea35400, size=size@entry=161)
    at bgpd/bgp_packet.c:2076
	(thread=<optimized out>) at bgpd/bgp_packet.c:2931

Ticket: #3683053

Signed-off-by: Chirag Shah <chirag@nvidia.com>
(cherry picked from commit 7d168d9ef1)
2023-12-05 08:04:33 +00:00
Donatas Abraitis
0e022f37cc
Merge pull request #14917 from FRRouting/mergify/bp/stable/9.1/pr-14909
bgpd: aggr summary-only suppressed export to evpn (backport #14909)
2023-11-30 19:10:03 +02:00
Chirag Shah
5381580960 bgpd: lttng tp add evpn route events
Ticket:#3597393
Testing Done:

2023-09-08T22:53:03.532 frr_bgp:evpn_withdraw_type5 {'vrf_id': 42, 'ip':
'53.1.1.0'}
2023-09-08T22:53:06.207 frr_bgp:evpn_advertise_type5 {'vrf_id': 42,
'ip': '53.1.1.0', 'rmac': '00:02:00:00:00:38', 'vtep': '27.0.0.15'}

2023-09-08T21:51:15.637 frr_bgp:evpn_mh_local_ead_es_evi_route_upd
{'esi': '03:44:38:39:ff:ff:01:00:00:03', 'vni': 1000, 'route_type': 1,
'vtep': '27.0.0.15'}

2023-09-08T20:45:17.059 frr_bgp:evpn_mh_local_ead_es_evi_route_del
{'esi': '03:44:38:39:ff:ff:01:00:00:01', 'vni': 0, 'route_type': 4,
'vtep': '27.0.0.15'}

2023-09-08T21:51:18.363 frr_bgp:evpn_mh_es_evi_vtep_add {'esi':
'03:44:38:39:ff:ff:01:00:00:02', 'vni': 1000, 'vtep': '27.0.0.16',
'ead_es': 1}

2023-09-08T20:43:50.206 frr_bgp:evpn_mh_es_evi_vtep_del {'esi':
'03:44:38:39:ff:ff:01:00:00:01', 'vni': 1002, 'vtep': '27.0.0.16',
'ead_es': 0}

Signed-off-by: Chirag Shah <chirag@nvidia.com>
(cherry picked from commit ac30911160)
2023-11-30 09:26:50 +00:00
Chirag Shah
f54f8d7eb7 bgpd: aggr summary-only suppressed export to evpn
When exporting bgp vrf instance unicast route into
EVPN as type-5, check for suppressed ones and do not
export them.

Ticket:#3534718
Testing Done:

Config:

router bgp 660000 vrf vrf1
 bgp router-id 144.1.1.2
 no bgp network import-check
 neighbor 144.1.1.1 remote-as external
 !
 address-family ipv4 unicast
  aggregate-address 50.1.0.0/16 summary-only
  redistribute connected
 exit-address-family
 !
 address-family l2vpn evpn
  advertise ipv4 unicast
 exit-address-family
exit

v4 suppressed route: (5 suppressed routes not exported to evpn)

tor1# vtysh -c "show bgp vrf vrf1 ipv4 unicast" | grep "50.1"
*> 50.1.0.0/16      0.0.0.0(bordertor-11)
s> 50.1.1.212/32    6.0.0.30(leaf-11)<
s> 50.1.1.222/32    6.0.0.31(leaf-11)<
s> 50.1.110.0/24    0.0.0.0(bordertor-11)
s> 50.1.210.214/32  6.0.0.30(leaf-11)<
s> 50.1.220.224/32  6.0.0.31(leaf-11)<

tor1# vtysh -c "show bgp l2vpn evpn route" | grep -A3 "*> \[5\].*\[50.1"
*> [5]:[0]:[16]:[50.1.0.0] RD 144.1.1.2:7
                    6.0.0.1 (bordertor-11)
                                             0         32768 ?
                    ET:8 RT:4640:104001 Rmac:00:02:00:00:00:04

Signed-off-by: Chirag Shah <chirag@nvidia.com>
(cherry picked from commit 71d08ecc9d)
2023-11-30 09:26:50 +00:00
Keelan10
064c349452 bgpd: Free Memory for SRv6 Functions and Locator Chunks
Implement proper memory cleanup for SRv6 functions and locator chunks to prevent potential memory leaks.
The list callback deletion functions have been set.

The ASan leak log for reference:

```
***********************************************************************************
Address Sanitizer Error detected in bgp_srv6l3vpn_to_bgp_vrf.test_bgp_srv6l3vpn_to_bgp_vrf/r2.asan.bgpd.4180

=================================================================
==4180==ERROR: LeakSanitizer: detected memory leaks

Direct leak of 544 byte(s) in 2 object(s) allocated from:
    #0 0x7f8d176a0d28 in __interceptor_calloc (/usr/lib/x86_64-linux-gnu/libasan.so.4+0xded28)
    #1 0x7f8d1709f238 in qcalloc lib/memory.c:105
    #2 0x55d5dba6ee75 in sid_register bgpd/bgp_mplsvpn.c:591
    #3 0x55d5dba6ee75 in alloc_new_sid bgpd/bgp_mplsvpn.c:712
    #4 0x55d5dba6f3ce in ensure_vrf_tovpn_sid_per_af bgpd/bgp_mplsvpn.c:758
    #5 0x55d5dba6fb94 in ensure_vrf_tovpn_sid bgpd/bgp_mplsvpn.c:849
    #6 0x55d5dba7f975 in vpn_leak_postchange bgpd/bgp_mplsvpn.h:299
    #7 0x55d5dba7f975 in vpn_leak_postchange_all bgpd/bgp_mplsvpn.c:3704
    #8 0x55d5dbbb6c66 in bgp_zebra_process_srv6_locator_chunk bgpd/bgp_zebra.c:3164
    #9 0x7f8d1716f08a in zclient_read lib/zclient.c:4459
    #10 0x7f8d1713f034 in event_call lib/event.c:1974
    #11 0x7f8d1708242b in frr_run lib/libfrr.c:1214
    #12 0x55d5db99d19d in main bgpd/bgp_main.c:510
    #13 0x7f8d160c5c86 in __libc_start_main (/lib/x86_64-linux-gnu/libc.so.6+0x21c86)

Direct leak of 296 byte(s) in 1 object(s) allocated from:
    #0 0x7f8d176a0d28 in __interceptor_calloc (/usr/lib/x86_64-linux-gnu/libasan.so.4+0xded28)
    #1 0x7f8d1709f238 in qcalloc lib/memory.c:105
    #2 0x7f8d170b1d5f in srv6_locator_chunk_alloc lib/srv6.c:135
    #3 0x55d5dbbb6a19 in bgp_zebra_process_srv6_locator_chunk bgpd/bgp_zebra.c:3144
    #4 0x7f8d1716f08a in zclient_read lib/zclient.c:4459
    #5 0x7f8d1713f034 in event_call lib/event.c:1974
    #6 0x7f8d1708242b in frr_run lib/libfrr.c:1214
    #7 0x55d5db99d19d in main bgpd/bgp_main.c:510
    #8 0x7f8d160c5c86 in __libc_start_main (/lib/x86_64-linux-gnu/libc.so.6+0x21c86)
***********************************************************************************

```

Signed-off-by: Keelan Cannoo <keelan.cannoo@icloud.com>
(cherry picked from commit 8e7044ba3b)
2023-11-30 07:24:17 +00:00
Louis Scalbert
41c7a439d4 bgpd: fix bgp_best_selection heap-use-after-free
Fix bgp_best_selection heap-use-after-free

> ==2521540==ERROR: AddressSanitizer: heap-use-after-free on address 0x60d000032810 at pc 0x000000716f45 bp 0x7ffedc6229d0 sp 0x7ffedc6229c8
> READ of size 8 at 0x60d000032810 thread T0
>     #0 0x716f44 in bgp_best_selection /home/lscalber/git/frr/bgpd/bgp_route.c:2834:5
>     #1 0x71a05e in bgp_process_main_one /home/lscalber/git/frr/bgpd/bgp_route.c:3344:2
>     #2 0x71c265 in bgp_process_wq /home/lscalber/git/frr/bgpd/bgp_route.c:3622:3
>     #3 0x7fe630a6669c in work_queue_run /home/lscalber/git/frr/lib/workqueue.c:282:10
>     #4 0x7fe630a294e2 in event_call /home/lscalber/git/frr/lib/event.c:1974:2
>     #5 0x7fe630898f3f in frr_run /home/lscalber/git/frr/lib/libfrr.c:1214:3
>     #6 0x4f4ace in main /home/lscalber/git/frr/bgpd/bgp_main.c:510:2
>     #7 0x7fe63018bd09 in __libc_start_main csu/../csu/libc-start.c:308:16
>     #8 0x449629 in _start (/usr/lib/frr/bgpd+0x449629)
>
> 0x60d000032810 is located 48 bytes inside of 144-byte region [0x60d0000327e0,0x60d000032870)
> freed by thread T0 here:
>     #0 0x4c341d in free (/usr/lib/frr/bgpd+0x4c341d)
>     #1 0x7fe6308d7420 in qfree /home/lscalber/git/frr/lib/memory.c:130:2
>     #2 0x702632 in bgp_path_info_free_with_caller /home/lscalber/git/frr/bgpd/bgp_route.c:300:2
>     #3 0x702023 in bgp_path_info_unlock /home/lscalber/git/frr/bgpd/bgp_route.c:315:3
>     #4 0x703bc6 in bgp_path_info_reap /home/lscalber/git/frr/bgpd/bgp_route.c:461:2
>     #5 0x716e5d in bgp_best_selection /home/lscalber/git/frr/bgpd/bgp_route.c:2829:12
>     #6 0x71a05e in bgp_process_main_one /home/lscalber/git/frr/bgpd/bgp_route.c:3344:2
>     #7 0x71c265 in bgp_process_wq /home/lscalber/git/frr/bgpd/bgp_route.c:3622:3
>     #8 0x7fe630a6669c in work_queue_run /home/lscalber/git/frr/lib/workqueue.c:282:10
>     #9 0x7fe630a294e2 in event_call /home/lscalber/git/frr/lib/event.c:1974:2
>     #10 0x7fe630898f3f in frr_run /home/lscalber/git/frr/lib/libfrr.c:1214:3
>     #11 0x4f4ace in main /home/lscalber/git/frr/bgpd/bgp_main.c:510:2
>     #12 0x7fe63018bd09 in __libc_start_main csu/../csu/libc-start.c:308:16
>
> previously allocated by thread T0 here:
>     #0 0x4c3812 in calloc (/usr/lib/frr/bgpd+0x4c3812)
>     #1 0x7fe6308d7178 in qcalloc /home/lscalber/git/frr/lib/memory.c:105:27
>     #2 0x71f5b4 in info_make /home/lscalber/git/frr/bgpd/bgp_route.c:3985:8
>     #3 0x725293 in bgp_update /home/lscalber/git/frr/bgpd/bgp_route.c:4881:8
>     #4 0x73083d in bgp_nlri_parse_ip /home/lscalber/git/frr/bgpd/bgp_route.c:6230:4
>     #5 0x6ba980 in bgp_nlri_parse /home/lscalber/git/frr/bgpd/bgp_packet.c:341:10
>     #6 0x6cca2a in bgp_update_receive /home/lscalber/git/frr/bgpd/bgp_packet.c:2412:15
>     #7 0x6c6788 in bgp_process_packet /home/lscalber/git/frr/bgpd/bgp_packet.c:3887:11
>     #8 0x7fe630a294e2 in event_call /home/lscalber/git/frr/lib/event.c:1974:2
>     #9 0x7fe630898f3f in frr_run /home/lscalber/git/frr/lib/libfrr.c:1214:3
>     #10 0x4f4ace in main /home/lscalber/git/frr/bgpd/bgp_main.c:510:2
>     #11 0x7fe63018bd09 in __libc_start_main csu/../csu/libc-start.c:308:16

Fixes: ddb5b4880b ("bgpd: vpn-vrf route leaking")
Signed-off-by: Louis Scalbert <louis.scalbert@6wind.com>
(cherry picked from commit 9561f9671d)
2023-11-29 08:45:16 +00:00
Donatas Abraitis
c929e1ab43 bgpd: Flush attrs only if we don't have to announce a conditional route
To avoid USE:

```
==587645==ERROR: AddressSanitizer: heap-use-after-free on address 0x604000074050 at pc 0x55b34337d96c bp 0x7ffda59bb4c0 sp 0x7ffda59bb4b0
READ of size 8 at 0x604000074050 thread T0
    0 0x55b34337d96b in bgp_attr_flush bgpd/bgp_attr.c:1289
    1 0x55b34368ef85 in bgp_conditional_adv_routes bgpd/bgp_conditional_adv.c:111
    2 0x55b34368ff58 in bgp_conditional_adv_timer bgpd/bgp_conditional_adv.c:301
    3 0x7f7d41cdf81c in event_call lib/event.c:1980
    4 0x7f7d41c1da37 in frr_run lib/libfrr.c:1214
    5 0x55b343371e22 in main bgpd/bgp_main.c:510
    6 0x7f7d41517082 in __libc_start_main ../csu/libc-start.c:308
    7 0x55b3433769fd in _start (/usr/lib/frr/bgpd+0x2e29fd)

0x604000074050 is located 0 bytes inside of 40-byte region [0x604000074050,0x604000074078)
freed by thread T0 here:
    #0 0x7f7d4207540f in __interceptor_free ../../../../src/libsanitizer/asan/asan_malloc_linux.cc:122
    1 0x55b343396afd in community_free bgpd/bgp_community.c:41
    2 0x55b343396afd in community_free bgpd/bgp_community.c:28
    3 0x55b343397373 in community_intern bgpd/bgp_community.c:458
    4 0x55b34337bed4 in bgp_attr_intern bgpd/bgp_attr.c:967
    5 0x55b34368165b in bgp_advertise_attr_intern bgpd/bgp_advertise.c:106
    6 0x55b3435277d7 in bgp_adj_out_set_subgroup bgpd/bgp_updgrp_adv.c:587
    7 0x55b34368f36b in bgp_conditional_adv_routes bgpd/bgp_conditional_adv.c:125
    8 0x55b34368ff58 in bgp_conditional_adv_timer bgpd/bgp_conditional_adv.c:301
    9 0x7f7d41cdf81c in event_call lib/event.c:1980
    10 0x7f7d41c1da37 in frr_run lib/libfrr.c:1214
    11 0x55b343371e22 in main bgpd/bgp_main.c:510
    12 0x7f7d41517082 in __libc_start_main ../csu/libc-start.c:308

previously allocated by thread T0 here:
    #0 0x7f7d42075a06 in __interceptor_calloc ../../../../src/libsanitizer/asan/asan_malloc_linux.cc:153
    1 0x7f7d41c3c28e in qcalloc lib/memory.c:105
    2 0x55b3433976e8 in community_dup bgpd/bgp_community.c:514
    3 0x55b34350273a in route_set_community bgpd/bgp_routemap.c:2589
    4 0x7f7d41c96c06 in route_map_apply_ext lib/routemap.c:2690
    5 0x55b34368f2d8 in bgp_conditional_adv_routes bgpd/bgp_conditional_adv.c:107
    6 0x55b34368ff58 in bgp_conditional_adv_timer bgpd/bgp_conditional_adv.c:301
    7 0x7f7d41cdf81c in event_call lib/event.c:1980
    8 0x7f7d41c1da37 in frr_run lib/libfrr.c:1214
    9 0x55b343371e22 in main bgpd/bgp_main.c:510
    10 0x7f7d41517082 in __libc_start_main ../csu/libc-start.c:308
```

And also a crash:

```
(gdb) bt
0  raise (sig=sig@entry=6) at ../sysdeps/unix/sysv/linux/raise.c:50
1  0x00007ff3b7048ce0 in core_handler (signo=6, siginfo=0x7ffc8cf724b0, context=<optimized out>)
    at lib/sigevent.c:246
2  <signal handler called>
3  __GI_raise (sig=sig@entry=6) at ../sysdeps/unix/sysv/linux/raise.c:50
4  0x00007ff3b6bb8859 in __GI_abort () at abort.c:79
5  0x00007ff3b6c2326e in __libc_message (action=action@entry=do_abort,
    fmt=fmt@entry=0x7ff3b6d4d298 "%s\n") at ../sysdeps/posix/libc_fatal.c:155
6  0x00007ff3b6c2b2fc in malloc_printerr (
    str=str@entry=0x7ff3b6d4f628 "double free or corruption (fasttop)") at malloc.c:5347
7  0x00007ff3b6c2cc65 in _int_free (av=0x7ff3b6d82b80 <main_arena>, p=0x555c8fa70a10, have_lock=0)
    at malloc.c:4266
8  0x0000555c8da94bd3 in community_free (com=0x7ffc8cf72e70) at bgpd/bgp_community.c:41
9  community_free (com=com@entry=0x7ffc8cf72e70) at bgpd/bgp_community.c:28
10 0x0000555c8da8afc1 in bgp_attr_flush (attr=attr@entry=0x7ffc8cf73040) at bgpd/bgp_attr.c:1290
11 0x0000555c8dbc0760 in bgp_conditional_adv_routes (peer=peer@entry=0x555c8fa627c0,
    afi=afi@entry=AFI_IP, safi=SAFI_UNICAST, table=table@entry=0x555c8fa510b0, rmap=0x555c8fa71cb0,
    update_type=UPDATE_TYPE_ADVERTISE) at bgpd/bgp_conditional_adv.c:111
12 0x0000555c8dbc0b75 in bgp_conditional_adv_timer (t=<optimized out>)
    at bgpd/bgp_conditional_adv.c:301
13 0x00007ff3b705b84c in event_call (thread=thread@entry=0x7ffc8cf73440) at lib/event.c:1980
14 0x00007ff3b700bf98 in frr_run (master=0x555c8f27c090) at lib/libfrr.c:1214
15 0x0000555c8da85f05 in main (argc=<optimized out>, argv=0x7ffc8cf736a8) at bgpd/bgp_main.c:510
```

Signed-off-by: Donatas Abraitis <donatas@opensourcerouting.org>
(cherry picked from commit d410587bab)
2023-11-21 15:50:13 +00:00
Igor Ryzhov
958d75a221 bgpd: fix build error
I recieve the following error with GCC 9.4.0:
```
In file included from /usr/include/string.h:495,
                 from ./lib/zebra.h:23,
                 from bgpd/bgp_snmp_bgp4v2.c:7:
In function ‘memset’,
    inlined from ‘bgp4v2PathAttrLookup’ at bgpd/bgp_snmp_bgp4v2.c:605:3,
    inlined from ‘bgp4v2PathAttrTable’ at bgpd/bgp_snmp_bgp4v2.c:747:9:
/usr/include/x86_64-linux-gnu/bits/string_fortified.h:71:10: error: ‘__builtin_memset’ offset [9, 20] from the object at ‘paddr’ is out of the bounds of referenced subobject ‘_v4_addr’ with type ‘struct in_addr’ at offset 4 [-Werror=array-bounds]
   71 |   return __builtin___memset_chk (__dest, __ch, __len, __bos0 (__dest));
      |          ^~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~
```

Signed-off-by: Igor Ryzhov <iryzhov@nfware.com>
(cherry picked from commit 6eb79dd6f2)
2023-11-12 09:08:05 +00:00
Donatas Abraitis
cc75bdf026 bgpd: Set the software version capability received flag only after a validation
We shouldn't set it blindly once the packet is received, but first we have to
do some sanity checks.

Signed-off-by: Donatas Abraitis <donatas@opensourcerouting.org>
2023-11-09 16:03:01 +02:00
Francois Dumontet
a3add45309 bgp: fix bgp4v2 MIB NLRI INDEX format and order
With a BGP configuration with ipv4 peering, and ipv6 peering, an snmpwalk
is stopped while walking over the bgp4v2NlriTable

snmpwalk -c TEST -v2c -On -Ln 1.1.1.2 .1.3.6.1.3.5.1.1.4

[...]
.1.3.6.1.3.5.1.1.4.1.2.1.2.32.0.0.0.0.0.0.0.0.0.0.0.0.0.0.1 = Gauge32: 13380
.1.3.6.1.3.5.1.1.9.1.1.1.1.1.1.1.0.24.0.0.0.0 = Gauge32: 0
.1.3.6.1.3.5.1.1.9.1.1.1.1.1.1.1.0.24.0.0.0.0 = Gauge32: 0
 >= .1.3.6.1.3.5.1.1.9.1.1.1.1.1.1.1.0.24.0.0.0.0

The walk stopped because the index used in the NlriTable entries is
decrementing, and this is against the snmp specifications. Also, the
computed index is wrong, and does not match the provided
draft-ietf-idr-bgp4-mibv2-1 specification.

Fix this by computing a valid index, and by finding out the next
consecutive prefix.
The resulting changes do not break the walk, and the output is changed:

root@dut-vm:~# snmpwalk -v 2c -c public -Ln -On localhost 1.3.6.1.3.5.1.1.9.1
.1.3.6.1.3.5.1.1.9.1.1.1.1.1.1.10.200.0.0.24.1.10.125.0.2.1 = Gauge32: 0
.1.3.6.1.3.5.1.1.9.1.1.1.1.1.1.10.244.0.0.24.1.10.125.0.2.1 = Gauge32: 0
.1.3.6.1.3.5.1.1.9.1.2.1.1.1.1.10.200.0.0.24.1.10.125.0.2.1 = INTEGER: 1
.1.3.6.1.3.5.1.1.9.1.2.1.1.1.1.10.244.0.0.24.1.10.125.0.2.1 = INTEGER: 1
.1.3.6.1.3.5.1.1.9.1.3.1.1.1.1.10.200.0.0.24.1.10.125.0.2.1 = INTEGER: 1
.1.3.6.1.3.5.1.1.9.1.3.1.1.1.1.10.244.0.0.24.1.10.125.0.2.1 = INTEGER: 1
.1.3.6.1.3.5.1.1.9.1.4.1.1.1.1.10.200.0.0.24.1.10.125.0.2.1 = INTEGER: 1
.1.3.6.1.3.5.1.1.9.1.4.1.1.1.1.10.244.0.0.24.1.10.125.0.2.1 = INTEGER: 1
.1.3.6.1.3.5.1.1.9.1.5.1.1.1.1.10.200.0.0.24.1.10.125.0.2.1 = Hex-STRING: 0A C8 00 00
.1.3.6.1.3.5.1.1.9.1.5.1.1.1.1.10.244.0.0.24.1.10.125.0.2.1 = Hex-STRING: 0A F4 00 00

Fixes: c681e937d7 (bgpd: Implement SNMP
BGP4V2-MIB (bgp4V2NlriTable), part 1)
Fixes: 2ce69011c4 (bgpd: Implement SNMP
BGP4V2-MIB (bgp4V2NlriTable), part 2)

Signed-off-by: Francois Dumontet <francois.dumontet@6wind.com>
(cherry picked from commit fc3c9b177c)
2023-11-09 09:21:42 +00:00
Donatas Abraitis
250844bbca bgpd: Ignore handling NLRIs if we received MP_UNREACH_NLRI
If we receive MP_UNREACH_NLRI, we should stop handling remaining NLRIs if
no mandatory path attributes received.

In other words, if MP_UNREACH_NLRI received, the remaining NLRIs should be handled
as a new data, but without mandatory attributes, it's a malformed packet.

In normal case, this MUST not happen at all, but to avoid crashing bgpd, we MUST
handle that.

Reported-by: Iggy Frankovic <iggyfran@amazon.com>
Signed-off-by: Donatas Abraitis <donatas@opensourcerouting.org>
(cherry picked from commit c37119df45)
2023-11-05 16:31:57 +00:00
Donatas Abraitis
837f57f087 bgpd: Treat EOR as withdrawn to avoid unwanted handling of malformed attrs
Treat-as-withdraw, otherwise if we just ignore it, we will pass it to be
processed as a normal UPDATE without mandatory attributes, that could lead
to harmful behavior. In this case, a crash for route-maps with the configuration
such as:

```
router bgp 65001
 no bgp ebgp-requires-policy
 neighbor 127.0.0.1 remote-as external
 neighbor 127.0.0.1 passive
 neighbor 127.0.0.1 ebgp-multihop
 neighbor 127.0.0.1 disable-connected-check
 neighbor 127.0.0.1 update-source 127.0.0.2
 neighbor 127.0.0.1 timers 3 90
 neighbor 127.0.0.1 timers connect 1
 !
 address-family ipv4 unicast
  neighbor 127.0.0.1 addpath-tx-all-paths
  neighbor 127.0.0.1 default-originate
  neighbor 127.0.0.1 route-map RM_IN in
 exit-address-family
exit
!
route-map RM_IN permit 10
 set as-path prepend 200
exit
```

Send a malformed optional transitive attribute:

```
import socket
import time

OPEN = (b"\xff\xff\xff\xff\xff\xff\xff\xff\xff\xff\xff\xff\xff\xff"
b"\xff\xff\x00\x62\x01\x04\xfd\xea\x00\x5a\x0a\x00\x00\x01\x45\x02"
b"\x06\x01\x04\x00\x01\x00\x01\x02\x02\x02\x00\x02\x02\x46\x00\x02"
b"\x06\x41\x04\x00\x00\xfd\xea\x02\x02\x06\x00\x02\x06\x45\x04\x00"
b"\x01\x01\x03\x02\x0e\x49\x0c\x0a\x64\x6f\x6e\x61\x74\x61\x73\x2d"
b"\x70\x63\x00\x02\x04\x40\x02\x00\x78\x02\x09\x47\x07\x00\x01\x01"
b"\x80\x00\x00\x00")

KEEPALIVE = (b"\xff\xff\xff\xff\xff\xff\xff\xff\xff\xff"
b"\xff\xff\xff\xff\xff\xff\x00\x13\x04")

UPDATE = bytearray.fromhex("ffffffffffffffffffffffffffffffff002b0200000003c0ff00010100eb00ac100b0b001ad908ac100b0b")

s = socket.socket(socket.AF_INET, socket.SOCK_STREAM)
s.connect(('127.0.0.2', 179))
s.send(OPEN)
data = s.recv(1024)
s.send(KEEPALIVE)
data = s.recv(1024)
s.send(UPDATE)
data = s.recv(1024)
time.sleep(100)
s.close()
```

Reported-by: Iggy Frankovic <iggyfran@amazon.com>
Signed-off-by: Donatas Abraitis <donatas@opensourcerouting.org>
(cherry picked from commit 6814f2e013)
2023-11-05 16:31:57 +00:00
Donatas Abraitis
6cca03a52e bgpd: Check mandatory attributes more carefully for UPDATE message
If we send a crafted BGP UPDATE message without mandatory attributes, we do
not check if the length of the path attributes is zero or not. We only check
if attr->flag is at least set or not. Imagine we send only unknown transit
attribute, then attr->flag is always 0. Also, this is true only if graceful-restart
capability is received.

A crash:

```
bgpd[7834]: [TJ23Y-GY0RH] 127.0.0.1 Unknown attribute is received (type 31, length 16)
bgpd[7834]: [PCFFM-WMARW] 127.0.0.1(donatas-pc) rcvd UPDATE wlen 0 attrlen 20 alen 17
BGP[7834]: Received signal 11 at 1698089639 (si_addr 0x0, PC 0x55eefd375b4a); aborting...
BGP[7834]: /usr/local/lib/libfrr.so.0(zlog_backtrace_sigsafe+0x6d) [0x7f3205ca939d]
BGP[7834]: /usr/local/lib/libfrr.so.0(zlog_signal+0xf3) [0x7f3205ca9593]
BGP[7834]: /usr/local/lib/libfrr.so.0(+0xf5181) [0x7f3205cdd181]
BGP[7834]: /lib/x86_64-linux-gnu/libpthread.so.0(+0x12980) [0x7f3204ff3980]
BGP[7834]: /usr/lib/frr/bgpd(+0x18ab4a) [0x55eefd375b4a]
BGP[7834]: /usr/local/lib/libfrr.so.0(route_map_apply_ext+0x310) [0x7f3205cd1290]
BGP[7834]: /usr/lib/frr/bgpd(+0x163610) [0x55eefd34e610]
BGP[7834]: /usr/lib/frr/bgpd(bgp_update+0x9a5) [0x55eefd35c1d5]
BGP[7834]: /usr/lib/frr/bgpd(bgp_nlri_parse_ip+0xb7) [0x55eefd35e867]
BGP[7834]: /usr/lib/frr/bgpd(+0x1555e6) [0x55eefd3405e6]
BGP[7834]: /usr/lib/frr/bgpd(bgp_process_packet+0x747) [0x55eefd345597]
BGP[7834]: /usr/local/lib/libfrr.so.0(event_call+0x83) [0x7f3205cef4a3]
BGP[7834]: /usr/local/lib/libfrr.so.0(frr_run+0xc0) [0x7f3205ca10a0]
BGP[7834]: /usr/lib/frr/bgpd(main+0x409) [0x55eefd2dc979]
```

Sending:

```
import socket
import time

OPEN = (b"\xff\xff\xff\xff\xff\xff\xff\xff\xff\xff\xff\xff\xff\xff"
b"\xff\xff\x00\x62\x01\x04\xfd\xea\x00\x5a\x0a\x00\x00\x01\x45\x02"
b"\x06\x01\x04\x00\x01\x00\x01\x02\x02\x02\x00\x02\x02\x46\x00\x02"
b"\x06\x41\x04\x00\x00\xfd\xea\x02\x02\x06\x00\x02\x06\x45\x04\x00"
b"\x01\x01\x03\x02\x0e\x49\x0c\x0a\x64\x6f\x6e\x61\x74\x61\x73\x2d"
b"\x70\x63\x00\x02\x04\x40\x02\x00\x78\x02\x09\x47\x07\x00\x01\x01"
b"\x80\x00\x00\x00")

KEEPALIVE = (b"\xff\xff\xff\xff\xff\xff\xff\xff\xff\xff"
b"\xff\xff\xff\xff\xff\xff\x00\x13\x04")

UPDATE = bytearray.fromhex("ffffffffffffffffffffffffffffffff003c0200000014ff1f001000040146464646460004464646464646664646f50d05800100010200ffff000000")

s = socket.socket(socket.AF_INET, socket.SOCK_STREAM)
s.connect(('127.0.0.2', 179))
s.send(OPEN)
data = s.recv(1024)
s.send(KEEPALIVE)
data = s.recv(1024)
s.send(UPDATE)
data = s.recv(1024)
time.sleep(1000)
s.close()
```

Reported-by: Iggy Frankovic <iggyfran@amazon.com>
Signed-off-by: Donatas Abraitis <donatas@opensourcerouting.org>
(cherry picked from commit d8482bf011)
2023-10-25 11:22:32 +00:00
Donatas Abraitis
8ec1d39b27 bgpd: Handle MP_REACH_NLRI malformed packets with session reset
Avoid crashing bgpd.

```
(gdb)
bgp_mp_reach_parse (args=<optimized out>, mp_update=0x7fffffffe140) at bgpd/bgp_attr.c:2341
2341			stream_get(&attr->mp_nexthop_global, s, IPV6_MAX_BYTELEN);
(gdb)
stream_get (dst=0x7fffffffe1ac, s=0x7ffff0006e80, size=16) at lib/stream.c:320
320	{
(gdb)
321		STREAM_VERIFY_SANE(s);
(gdb)
323		if (STREAM_READABLE(s) < size) {
(gdb)
34	  return __builtin___memcpy_chk (__dest, __src, __len, __bos0 (__dest));
(gdb)

Thread 1 "bgpd" received signal SIGSEGV, Segmentation fault.
0x00005555556e37be in route_set_aspath_prepend (rule=0x555555aac0d0, prefix=0x7fffffffe050,
    object=0x7fffffffdb00) at bgpd/bgp_routemap.c:2282
2282		if (path->attr->aspath->refcnt)
(gdb)
```

With the configuration:

```
 neighbor 127.0.0.1 remote-as external
 neighbor 127.0.0.1 passive
 neighbor 127.0.0.1 ebgp-multihop
 neighbor 127.0.0.1 disable-connected-check
 neighbor 127.0.0.1 update-source 127.0.0.2
 neighbor 127.0.0.1 timers 3 90
 neighbor 127.0.0.1 timers connect 1
 address-family ipv4 unicast
  redistribute connected
  neighbor 127.0.0.1 default-originate
  neighbor 127.0.0.1 route-map RM_IN in
 exit-address-family
!
route-map RM_IN permit 10
 set as-path prepend 200
exit
```

Reported-by: Iggy Frankovic <iggyfran@amazon.com>
Signed-off-by: Donatas Abraitis <donatas@opensourcerouting.org>
(cherry picked from commit b08afc81c6)
2023-10-25 11:22:32 +00:00
Donatas Abraitis
fdf1cefb92 bgpd: Do not suppress conditional advertisement updates if triggered
If we have a prefix-list with one entry, and after some time we append a prefix-list
with some more additional entries, conditional advertisement is triggered, and the
old entries are suppressed (because they look identical as sent before).

Hence, the old entries are sent as withdrawals and only new entries sent as updates.

Force re-sending all BGP updates for conditional advertisement. The same is done
for route-refresh, and/or soft clear operations.

Signed-off-by: Donatas Abraitis <donatas@opensourcerouting.org>
(cherry picked from commit 2d8e859585)
2023-10-23 11:41:57 +00:00
ryndia
81884d4633 bgpd: Ecommunity_dup memory leak fix
The shallow copy of attr wasn't freed when there was no valid label for the momentand the function return therefore creating leaks. The leak below are solved by flushing the shallow copy of attr.

Address Sanitizer Error detected in bgp_vpnv6_per_nexthop_label.test_bgp_vpnv6_per_nexthop_label/r1.asan.bgpd.13409
=================================================================
==13409==ERROR: LeakSanitizer: detected memory leaks

Direct leak of 280 byte(s) in 7 object(s) allocated from:
    #0 0x7f62cd0c9d28 in __interceptor_calloc (/usr/lib/x86_64-linux-gnu/libasan.so.4+0xded28)
    #1 0x7f62ccac21c3 in qcalloc lib/memory.c:105
    #2 0x5623b8810dc8 in ecommunity_dup bgpd/bgp_ecommunity.c:252
    #3 0x5623b88be8eb in vpn_leak_from_vrf_update bgpd/bgp_mplsvpn.c:1628
    #4 0x5623b88c13b3 in vpn_leak_from_vrf_update_all bgpd/bgp_mplsvpn.c:2005
    #5 0x5623b89beabc in vpn_leak_postchange bgpd/bgp_mplsvpn.h:287
    #6 0x5623b89beabc in af_label_vpn_export_allocation_mode_magic bgpd/bgp_vty.c:9464
    #7 0x5623b89beabc in af_label_vpn_export_allocation_mode bgpd/bgp_vty_clippy.c:2809
    #8 0x7f62cca45511 in cmd_execute_command_real lib/command.c:978
    #9 0x7f62cca459d5 in cmd_execute_command lib/command.c:1036
    #10 0x7f62cca45e54 in cmd_execute lib/command.c:1203
    #11 0x7f62ccb6ee20 in vty_command lib/vty.c:591
    #12 0x7f62ccb6f2cb in vty_execute lib/vty.c:1354
    #13 0x7f62ccb77b95 in vtysh_read lib/vty.c:2362
    #14 0x7f62ccb62b8f in event_call lib/event.c:1969
    #15 0x7f62ccaa5462 in frr_run lib/libfrr.c:1213
    #16 0x5623b87e054b in main bgpd/bgp_main.c:510
    #17 0x7f62cbae7c86 in __libc_start_main (/lib/x86_64-linux-gnu/libc.so.6+0x21c86)

Direct leak of 280 byte(s) in 7 object(s) allocated from:
    #0 0x7f62cd0c9d28 in __interceptor_calloc (/usr/lib/x86_64-linux-gnu/libasan.so.4+0xded28)
    #1 0x7f62ccac21c3 in qcalloc lib/memory.c:105
    #2 0x5623b8810dc8 in ecommunity_dup bgpd/bgp_ecommunity.c:252
    #3 0x5623b88be8eb in vpn_leak_from_vrf_update bgpd/bgp_mplsvpn.c:1628
    #4 0x5623b892e86d in bgp_update bgpd/bgp_route.c:4969
    #5 0x5623b893134d in bgp_nlri_parse_ip bgpd/bgp_route.c:6213
    #6 0x5623b88e2a0e in bgp_nlri_parse bgpd/bgp_packet.c:341
    #7 0x5623b88e4f7c in bgp_update_receive bgpd/bgp_packet.c:2220
    #8 0x5623b88f0474 in bgp_process_packet bgpd/bgp_packet.c:3386
    #9 0x7f62ccb62b8f in event_call lib/event.c:1969
    #10 0x7f62ccaa5462 in frr_run lib/libfrr.c:1213
    #11 0x5623b87e054b in main bgpd/bgp_main.c:510
    #12 0x7f62cbae7c86 in __libc_start_main (/lib/x86_64-linux-gnu/libc.so.6+0x21c86)

Direct leak of 280 byte(s) in 7 object(s) allocated from:
    #0 0x7f62cd0c9d28 in __interceptor_calloc (/usr/lib/x86_64-linux-gnu/libasan.so.4+0xded28)
    #1 0x7f62ccac21c3 in qcalloc lib/memory.c:105
    #2 0x5623b8810dc8 in ecommunity_dup bgpd/bgp_ecommunity.c:252
    #3 0x5623b88be8eb in vpn_leak_from_vrf_update bgpd/bgp_mplsvpn.c:1628
    #4 0x5623b88c13b3 in vpn_leak_from_vrf_update_all bgpd/bgp_mplsvpn.c:2005
    #5 0x5623b89bdebb in vpn_leak_postchange bgpd/bgp_mplsvpn.h:287
    #6 0x5623b89bdebb in af_label_vpn_export_magic bgpd/bgp_vty.c:9547
    #7 0x5623b89bdebb in af_label_vpn_export bgpd/bgp_vty_clippy.c:2868
    #8 0x7f62cca45511 in cmd_execute_command_real lib/command.c:978
    #9 0x7f62cca459d5 in cmd_execute_command lib/command.c:1036
    #10 0x7f62cca45e54 in cmd_execute lib/command.c:1203
    #11 0x7f62ccb6ee20 in vty_command lib/vty.c:591
    #12 0x7f62ccb6f2cb in vty_execute lib/vty.c:1354
    #13 0x7f62ccb77b95 in vtysh_read lib/vty.c:2362
    #14 0x7f62ccb62b8f in event_call lib/event.c:1969
    #15 0x7f62ccaa5462 in frr_run lib/libfrr.c:1213
    #16 0x5623b87e054b in main bgpd/bgp_main.c:510
    #17 0x7f62cbae7c86 in __libc_start_main (/lib/x86_64-linux-gnu/libc.so.6+0x21c86)

Direct leak of 240 byte(s) in 6 object(s) allocated from:
    #0 0x7f62cd0c9d28 in __interceptor_calloc (/usr/lib/x86_64-linux-gnu/libasan.so.4+0xded28)
    #1 0x7f62ccac21c3 in qcalloc lib/memory.c:105
    #2 0x5623b8810dc8 in ecommunity_dup bgpd/bgp_ecommunity.c:252
    #3 0x5623b88be8eb in vpn_leak_from_vrf_update bgpd/bgp_mplsvpn.c:1628
    #4 0x5623b88dc289 in evaluate_paths bgpd/bgp_nht.c:1384
    #5 0x5623b88ddb0b in bgp_process_nexthop_update bgpd/bgp_nht.c:733
    #6 0x5623b88de027 in bgp_parse_nexthop_update bgpd/bgp_nht.c:934
    #7 0x5623b8a03163 in bgp_read_nexthop_update bgpd/bgp_zebra.c:104
    #8 0x7f62ccb92d8a in zclient_read lib/zclient.c:4425
    #9 0x7f62ccb62b8f in event_call lib/event.c:1969
    #10 0x7f62ccaa5462 in frr_run lib/libfrr.c:1213
    #11 0x5623b87e054b in main bgpd/bgp_main.c:510
    #12 0x7f62cbae7c86 in __libc_start_main (/lib/x86_64-linux-gnu/libc.so.6+0x21c86)

Direct leak of 120 byte(s) in 3 object(s) allocated from:
    #0 0x7f62cd0c9d28 in __interceptor_calloc (/usr/lib/x86_64-linux-gnu/libasan.so.4+0xded28)
    #1 0x7f62ccac21c3 in qcalloc lib/memory.c:105
    #2 0x5623b8810dc8 in ecommunity_dup bgpd/bgp_ecommunity.c:252
    #3 0x5623b88be8eb in vpn_leak_from_vrf_update bgpd/bgp_mplsvpn.c:1628
    #4 0x5623b893a406 in bgp_redistribute_add bgpd/bgp_route.c:8692
    #5 0x5623b8a02b3b in zebra_read_route bgpd/bgp_zebra.c:595
    #6 0x7f62ccb92d8a in zclient_read lib/zclient.c:4425
    #7 0x7f62ccb62b8f in event_call lib/event.c:1969
    #8 0x7f62ccaa5462 in frr_run lib/libfrr.c:1213
    #9 0x5623b87e054b in main bgpd/bgp_main.c:510
    #10 0x7f62cbae7c86 in __libc_start_main (/lib/x86_64-linux-gnu/libc.so.6+0x21c86)

Direct leak of 80 byte(s) in 2 object(s) allocated from:
    #0 0x7f62cd0c9d28 in __interceptor_calloc (/usr/lib/x86_64-linux-gnu/libasan.so.4+0xded28)
    #1 0x7f62ccac21c3 in qcalloc lib/memory.c:105
    #2 0x5623b8810dc8 in ecommunity_dup bgpd/bgp_ecommunity.c:252
    #3 0x5623b88be8eb in vpn_leak_from_vrf_update bgpd/bgp_mplsvpn.c:1628
    #4 0x5623b88dc188 in evaluate_paths bgpd/bgp_nht.c:1348
    #5 0x5623b88ddb0b in bgp_process_nexthop_update bgpd/bgp_nht.c:733
    #6 0x5623b88de027 in bgp_parse_nexthop_update bgpd/bgp_nht.c:934
    #7 0x5623b8a03163 in bgp_read_nexthop_update bgpd/bgp_zebra.c:104
    #8 0x7f62ccb92d8a in zclient_read lib/zclient.c:4425
    #9 0x7f62ccb62b8f in event_call lib/event.c:1969
    #10 0x7f62ccaa5462 in frr_run lib/libfrr.c:1213
    #11 0x5623b87e054b in main bgpd/bgp_main.c:510
    #12 0x7f62cbae7c86 in __libc_start_main (/lib/x86_64-linux-gnu/libc.so.6+0x21c86)

Indirect leak of 56 byte(s) in 7 object(s) allocated from:
    #0 0x7f62cd0c9b40 in __interceptor_malloc (/usr/lib/x86_64-linux-gnu/libasan.so.4+0xdeb40)
    #1 0x7f62ccac1ee3 in qmalloc lib/memory.c:100
    #2 0x5623b8810eb8 in ecommunity_dup bgpd/bgp_ecommunity.c:256
    #3 0x5623b88be8eb in vpn_leak_from_vrf_update bgpd/bgp_mplsvpn.c:1628
    #4 0x5623b88c13b3 in vpn_leak_from_vrf_update_all bgpd/bgp_mplsvpn.c:2005
    #5 0x5623b89beabc in vpn_leak_postchange bgpd/bgp_mplsvpn.h:287
    #6 0x5623b89beabc in af_label_vpn_export_allocation_mode_magic bgpd/bgp_vty.c:9464
    #7 0x5623b89beabc in af_label_vpn_export_allocation_mode bgpd/bgp_vty_clippy.c:2809
    #8 0x7f62cca45511 in cmd_execute_command_real lib/command.c:978
    #9 0x7f62cca459d5 in cmd_execute_command lib/command.c:1036
    #10 0x7f62cca45e54 in cmd_execute lib/command.c:1203
    #11 0x7f62ccb6ee20 in vty_command lib/vty.c:591
    #12 0x7f62ccb6f2cb in vty_execute lib/vty.c:1354
    #13 0x7f62ccb77b95 in vtysh_read lib/vty.c:2362
    #14 0x7f62ccb62b8f in event_call lib/event.c:1969
    #15 0x7f62ccaa5462 in frr_run lib/libfrr.c:1213
    #16 0x5623b87e054b in main bgpd/bgp_main.c:510
    #17 0x7f62cbae7c86 in __libc_start_main (/lib/x86_64-linux-gnu/libc.so.6+0x21c86)

Indirect leak of 56 byte(s) in 7 object(s) allocated from:
    #0 0x7f62cd0c9b40 in __interceptor_malloc (/usr/lib/x86_64-linux-gnu/libasan.so.4+0xdeb40)
    #1 0x7f62ccac1ee3 in qmalloc lib/memory.c:100
    #2 0x5623b8810eb8 in ecommunity_dup bgpd/bgp_ecommunity.c:256
    #3 0x5623b88be8eb in vpn_leak_from_vrf_update bgpd/bgp_mplsvpn.c:1628
    #4 0x5623b892e86d in bgp_update bgpd/bgp_route.c:4969
    #5 0x5623b893134d in bgp_nlri_parse_ip bgpd/bgp_route.c:6213
    #6 0x5623b88e2a0e in bgp_nlri_parse bgpd/bgp_packet.c:341
    #7 0x5623b88e4f7c in bgp_update_receive bgpd/bgp_packet.c:2220
    #8 0x5623b88f0474 in bgp_process_packet bgpd/bgp_packet.c:3386
    #9 0x7f62ccb62b8f in event_call lib/event.c:1969
    #10 0x7f62ccaa5462 in frr_run lib/libfrr.c:1213
    #11 0x5623b87e054b in main bgpd/bgp_main.c:510
    #12 0x7f62cbae7c86 in __libc_start_main (/lib/x86_64-linux-gnu/libc.so.6+0x21c86)

Indirect leak of 56 byte(s) in 7 object(s) allocated from:
    #0 0x7f62cd0c9b40 in __interceptor_malloc (/usr/lib/x86_64-linux-gnu/libasan.so.4+0xdeb40)
    #1 0x7f62ccac1ee3 in qmalloc lib/memory.c:100
    #2 0x5623b8810eb8 in ecommunity_dup bgpd/bgp_ecommunity.c:256
    #3 0x5623b88be8eb in vpn_leak_from_vrf_update bgpd/bgp_mplsvpn.c:1628
    #4 0x5623b88c13b3 in vpn_leak_from_vrf_update_all bgpd/bgp_mplsvpn.c:2005
    #5 0x5623b89bdebb in vpn_leak_postchange bgpd/bgp_mplsvpn.h:287
    #6 0x5623b89bdebb in af_label_vpn_export_magic bgpd/bgp_vty.c:9547
    #7 0x5623b89bdebb in af_label_vpn_export bgpd/bgp_vty_clippy.c:2868
    #8 0x7f62cca45511 in cmd_execute_command_real lib/command.c:978
    #9 0x7f62cca459d5 in cmd_execute_command lib/command.c:1036
    #10 0x7f62cca45e54 in cmd_execute lib/command.c:1203
    #11 0x7f62ccb6ee20 in vty_command lib/vty.c:591
    #12 0x7f62ccb6f2cb in vty_execute lib/vty.c:1354
    #13 0x7f62ccb77b95 in vtysh_read lib/vty.c:2362
    #14 0x7f62ccb62b8f in event_call lib/event.c:1969
    #15 0x7f62ccaa5462 in frr_run lib/libfrr.c:1213
    #16 0x5623b87e054b in main bgpd/bgp_main.c:510
    #17 0x7f62cbae7c86 in __libc_start_main (/lib/x86_64-linux-gnu/libc.so.6+0x21c86)

Indirect leak of 48 byte(s) in 6 object(s) allocated from:
    #0 0x7f62cd0c9b40 in __interceptor_malloc (/usr/lib/x86_64-linux-gnu/libasan.so.4+0xdeb40)
    #1 0x7f62ccac1ee3 in qmalloc lib/memory.c:100
    #2 0x5623b8810eb8 in ecommunity_dup bgpd/bgp_ecommunity.c:256
    #3 0x5623b88be8eb in vpn_leak_from_vrf_update bgpd/bgp_mplsvpn.c:1628
    #4 0x5623b88dc289 in evaluate_paths bgpd/bgp_nht.c:1384
    #5 0x5623b88ddb0b in bgp_process_nexthop_update bgpd/bgp_nht.c:733
    #6 0x5623b88de027 in bgp_parse_nexthop_update bgpd/bgp_nht.c:934
    #7 0x5623b8a03163 in bgp_read_nexthop_update bgpd/bgp_zebra.c:104
    #8 0x7f62ccb92d8a in zclient_read lib/zclient.c:4425
    #9 0x7f62ccb62b8f in event_call lib/event.c:1969
    #10 0x7f62ccaa5462 in frr_run lib/libfrr.c:1213
    #11 0x5623b87e054b in main bgpd/bgp_main.c:510
    #12 0x7f62cbae7c86 in __libc_start_main (/lib/x86_64-linux-gnu/libc.so.6+0x21c86)

Indirect leak of 24 byte(s) in 3 object(s) allocated from:
    #0 0x7f62cd0c9b40 in __interceptor_malloc (/usr/lib/x86_64-linux-gnu/libasan.so.4+0xdeb40)
    #1 0x7f62ccac1ee3 in qmalloc lib/memory.c:100
    #2 0x5623b8810eb8 in ecommunity_dup bgpd/bgp_ecommunity.c:256
    #3 0x5623b88be8eb in vpn_leak_from_vrf_update bgpd/bgp_mplsvpn.c:1628
    #4 0x5623b893a406 in bgp_redistribute_add bgpd/bgp_route.c:8692
    #5 0x5623b8a02b3b in zebra_read_route bgpd/bgp_zebra.c:595
    #6 0x7f62ccb92d8a in zclient_read lib/zclient.c:4425
    #7 0x7f62ccb62b8f in event_call lib/event.c:1969
    #8 0x7f62ccaa5462 in frr_run lib/libfrr.c:1213
    #9 0x5623b87e054b in main bgpd/bgp_main.c:510
    #10 0x7f62cbae7c86 in __libc_start_main (/lib/x86_64-linux-gnu/libc.so.6+0x21c86)

Indirect leak of 16 byte(s) in 2 object(s) allocated from:
    #0 0x7f62cd0c9b40 in __interceptor_malloc (/usr/lib/x86_64-linux-gnu/libasan.so.4+0xdeb40)
    #1 0x7f62ccac1ee3 in qmalloc lib/memory.c:100
    #2 0x5623b8810eb8 in ecommunity_dup bgpd/bgp_ecommunity.c:256
    #3 0x5623b88be8eb in vpn_leak_from_vrf_update bgpd/bgp_mplsvpn.c:1628
    #4 0x5623b88dc188 in evaluate_paths bgpd/bgp_nht.c:1348
    #5 0x5623b88ddb0b in bgp_process_nexthop_update bgpd/bgp_nht.c:733
    #6 0x5623b88de027 in bgp_parse_nexthop_update bgpd/bgp_nht.c:934
    #7 0x5623b8a03163 in bgp_read_nexthop_update bgpd/bgp_zebra.c:104
    #8 0x7f62ccb92d8a in zclient_read lib/zclient.c:4425
    #9 0x7f62ccb62b8f in event_call lib/event.c:1969
    #10 0x7f62ccaa5462 in frr_run lib/libfrr.c:1213
    #11 0x5623b87e054b in main bgpd/bgp_main.c:510
    #12 0x7f62cbae7c86 in __libc_start_main (/lib/x86_64-linux-gnu/libc.so.6+0x21c86)

SUMMARY: AddressSanitizer: 1536 byte(s) leaked in 64 allocation(s).
***********************************************************************************

Address Sanitizer Error detected in bgp_vpnv4_per_nexthop_label.test_bgp_vpnv4_per_nexthop_label/r1.asan.bgpd.10610

=================================================================
==10610==ERROR: LeakSanitizer: detected memory leaks

Direct leak of 280 byte(s) in 7 object(s) allocated from:
    #0 0x7f81fc562d28 in __interceptor_calloc (/usr/lib/x86_64-linux-gnu/libasan.so.4+0xded28)
    #1 0x7f81fbf5b1c3 in qcalloc lib/memory.c:105
    #2 0x55cdc9b28dc8 in ecommunity_dup bgpd/bgp_ecommunity.c:252
    #3 0x55cdc9bd68eb in vpn_leak_from_vrf_update bgpd/bgp_mplsvpn.c:1628
    #4 0x55cdc9c4686d in bgp_update bgpd/bgp_route.c:4969
    #5 0x55cdc9c4934d in bgp_nlri_parse_ip bgpd/bgp_route.c:6213
    #6 0x55cdc9bfaa0e in bgp_nlri_parse bgpd/bgp_packet.c:341
    #7 0x55cdc9bfcf7c in bgp_update_receive bgpd/bgp_packet.c:2220
    #8 0x55cdc9c08474 in bgp_process_packet bgpd/bgp_packet.c:3386
    #9 0x7f81fbffbb8f in event_call lib/event.c:1969
    #10 0x7f81fbf3e462 in frr_run lib/libfrr.c:1213
    #11 0x55cdc9af854b in main bgpd/bgp_main.c:510
    #12 0x7f81faf80c86 in __libc_start_main (/lib/x86_64-linux-gnu/libc.so.6+0x21c86)

Direct leak of 280 byte(s) in 7 object(s) allocated from:
    #0 0x7f81fc562d28 in __interceptor_calloc (/usr/lib/x86_64-linux-gnu/libasan.so.4+0xded28)
    #1 0x7f81fbf5b1c3 in qcalloc lib/memory.c:105
    #2 0x55cdc9b28dc8 in ecommunity_dup bgpd/bgp_ecommunity.c:252
    #3 0x55cdc9bd68eb in vpn_leak_from_vrf_update bgpd/bgp_mplsvpn.c:1628
    #4 0x55cdc9bd93b3 in vpn_leak_from_vrf_update_all bgpd/bgp_mplsvpn.c:2005
    #5 0x55cdc9cd6abc in vpn_leak_postchange bgpd/bgp_mplsvpn.h:287
    #6 0x55cdc9cd6abc in af_label_vpn_export_allocation_mode_magic bgpd/bgp_vty.c:9464
    #7 0x55cdc9cd6abc in af_label_vpn_export_allocation_mode bgpd/bgp_vty_clippy.c:2809
    #8 0x7f81fbede511 in cmd_execute_command_real lib/command.c:978
    #9 0x7f81fbede9d5 in cmd_execute_command lib/command.c:1036
    #10 0x7f81fbedee54 in cmd_execute lib/command.c:1203
    #11 0x7f81fc007e20 in vty_command lib/vty.c:591
    #12 0x7f81fc0082cb in vty_execute lib/vty.c:1354
    #13 0x7f81fc010b95 in vtysh_read lib/vty.c:2362
    #14 0x7f81fbffbb8f in event_call lib/event.c:1969
    #15 0x7f81fbf3e462 in frr_run lib/libfrr.c:1213
    #16 0x55cdc9af854b in main bgpd/bgp_main.c:510
    #17 0x7f81faf80c86 in __libc_start_main (/lib/x86_64-linux-gnu/libc.so.6+0x21c86)

Direct leak of 280 byte(s) in 7 object(s) allocated from:
    #0 0x7f81fc562d28 in __interceptor_calloc (/usr/lib/x86_64-linux-gnu/libasan.so.4+0xded28)
    #1 0x7f81fbf5b1c3 in qcalloc lib/memory.c:105
    #2 0x55cdc9b28dc8 in ecommunity_dup bgpd/bgp_ecommunity.c:252
    #3 0x55cdc9bd68eb in vpn_leak_from_vrf_update bgpd/bgp_mplsvpn.c:1628
    #4 0x55cdc9bd93b3 in vpn_leak_from_vrf_update_all bgpd/bgp_mplsvpn.c:2005
    #5 0x55cdc9cd5ebb in vpn_leak_postchange bgpd/bgp_mplsvpn.h:287
    #6 0x55cdc9cd5ebb in af_label_vpn_export_magic bgpd/bgp_vty.c:9547
    #7 0x55cdc9cd5ebb in af_label_vpn_export bgpd/bgp_vty_clippy.c:2868
    #8 0x7f81fbede511 in cmd_execute_command_real lib/command.c:978
    #9 0x7f81fbede9d5 in cmd_execute_command lib/command.c:1036
    #10 0x7f81fbedee54 in cmd_execute lib/command.c:1203
    #11 0x7f81fc007e20 in vty_command lib/vty.c:591
    #12 0x7f81fc0082cb in vty_execute lib/vty.c:1354
    #13 0x7f81fc010b95 in vtysh_read lib/vty.c:2362
    #14 0x7f81fbffbb8f in event_call lib/event.c:1969
    #15 0x7f81fbf3e462 in frr_run lib/libfrr.c:1213
    #16 0x55cdc9af854b in main bgpd/bgp_main.c:510
    #17 0x7f81faf80c86 in __libc_start_main (/lib/x86_64-linux-gnu/libc.so.6+0x21c86)

Direct leak of 240 byte(s) in 6 object(s) allocated from:
    #0 0x7f81fc562d28 in __interceptor_calloc (/usr/lib/x86_64-linux-gnu/libasan.so.4+0xded28)
    #1 0x7f81fbf5b1c3 in qcalloc lib/memory.c:105
    #2 0x55cdc9b28dc8 in ecommunity_dup bgpd/bgp_ecommunity.c:252
    #3 0x55cdc9bd68eb in vpn_leak_from_vrf_update bgpd/bgp_mplsvpn.c:1628
    #4 0x55cdc9bf4289 in evaluate_paths bgpd/bgp_nht.c:1384
    #5 0x55cdc9bf5b0b in bgp_process_nexthop_update bgpd/bgp_nht.c:733
    #6 0x55cdc9bf6027 in bgp_parse_nexthop_update bgpd/bgp_nht.c:934
    #7 0x55cdc9d1b163 in bgp_read_nexthop_update bgpd/bgp_zebra.c:104
    #8 0x7f81fc02bd8a in zclient_read lib/zclient.c:4425
    #9 0x7f81fbffbb8f in event_call lib/event.c:1969
    #10 0x7f81fbf3e462 in frr_run lib/libfrr.c:1213
    #11 0x55cdc9af854b in main bgpd/bgp_main.c:510
    #12 0x7f81faf80c86 in __libc_start_main (/lib/x86_64-linux-gnu/libc.so.6+0x21c86)

Direct leak of 80 byte(s) in 2 object(s) allocated from:
    #0 0x7f81fc562d28 in __interceptor_calloc (/usr/lib/x86_64-linux-gnu/libasan.so.4+0xded28)
    #1 0x7f81fbf5b1c3 in qcalloc lib/memory.c:105
    #2 0x55cdc9b28dc8 in ecommunity_dup bgpd/bgp_ecommunity.c:252
    #3 0x55cdc9bd68eb in vpn_leak_from_vrf_update bgpd/bgp_mplsvpn.c:1628
    #4 0x55cdc9bf4188 in evaluate_paths bgpd/bgp_nht.c:1348
    #5 0x55cdc9bf5b0b in bgp_process_nexthop_update bgpd/bgp_nht.c:733
    #6 0x55cdc9bf6027 in bgp_parse_nexthop_update bgpd/bgp_nht.c:934
    #7 0x55cdc9d1b163 in bgp_read_nexthop_update bgpd/bgp_zebra.c:104
    #8 0x7f81fc02bd8a in zclient_read lib/zclient.c:4425
    #9 0x7f81fbffbb8f in event_call lib/event.c:1969
    #10 0x7f81fbf3e462 in frr_run lib/libfrr.c:1213
    #11 0x55cdc9af854b in main bgpd/bgp_main.c:510
    #12 0x7f81faf80c86 in __libc_start_main (/lib/x86_64-linux-gnu/libc.so.6+0x21c86)

Direct leak of 80 byte(s) in 2 object(s) allocated from:
    #0 0x7f81fc562d28 in __interceptor_calloc (/usr/lib/x86_64-linux-gnu/libasan.so.4+0xded28)
    #1 0x7f81fbf5b1c3 in qcalloc lib/memory.c:105
    #2 0x55cdc9b28dc8 in ecommunity_dup bgpd/bgp_ecommunity.c:252
    #3 0x55cdc9bd68eb in vpn_leak_from_vrf_update bgpd/bgp_mplsvpn.c:1628
    #4 0x55cdc9bd93b3 in vpn_leak_from_vrf_update_all bgpd/bgp_mplsvpn.c:2005
    #5 0x55cdc9bdafd5 in vpn_leak_postchange bgpd/bgp_mplsvpn.h:287
    #6 0x55cdc9bdafd5 in vpn_leak_label_callback bgpd/bgp_mplsvpn.c:581
    #7 0x55cdc9bb2606 in lp_cbq_docallback bgpd/bgp_labelpool.c:118
    #8 0x7f81fc0164b5 in work_queue_run lib/workqueue.c:266
    #9 0x7f81fbffbb8f in event_call lib/event.c:1969
    #10 0x7f81fbf3e462 in frr_run lib/libfrr.c:1213
    #11 0x55cdc9af854b in main bgpd/bgp_main.c:510
    #12 0x7f81faf80c86 in __libc_start_main (/lib/x86_64-linux-gnu/libc.so.6+0x21c86)

Direct leak of 40 byte(s) in 1 object(s) allocated from:
    #0 0x7f81fc562d28 in __interceptor_calloc (/usr/lib/x86_64-linux-gnu/libasan.so.4+0xded28)
    #1 0x7f81fbf5b1c3 in qcalloc lib/memory.c:105
    #2 0x55cdc9b28dc8 in ecommunity_dup bgpd/bgp_ecommunity.c:252
    #3 0x55cdc9bd68eb in vpn_leak_from_vrf_update bgpd/bgp_mplsvpn.c:1628
    #4 0x55cdc9c52406 in bgp_redistribute_add bgpd/bgp_route.c:8692
    #5 0x55cdc9d1ab3b in zebra_read_route bgpd/bgp_zebra.c:595
    #6 0x7f81fc02bd8a in zclient_read lib/zclient.c:4425
    #7 0x7f81fbffbb8f in event_call lib/event.c:1969
    #8 0x7f81fbf3e462 in frr_run lib/libfrr.c:1213
    #9 0x55cdc9af854b in main bgpd/bgp_main.c:510
    #10 0x7f81faf80c86 in __libc_start_main (/lib/x86_64-linux-gnu/libc.so.6+0x21c86)

Indirect leak of 56 byte(s) in 7 object(s) allocated from:
    #0 0x7f81fc562b40 in __interceptor_malloc (/usr/lib/x86_64-linux-gnu/libasan.so.4+0xdeb40)
    #1 0x7f81fbf5aee3 in qmalloc lib/memory.c:100
    #2 0x55cdc9b28eb8 in ecommunity_dup bgpd/bgp_ecommunity.c:256
    #3 0x55cdc9bd68eb in vpn_leak_from_vrf_update bgpd/bgp_mplsvpn.c:1628
    #4 0x55cdc9bd93b3 in vpn_leak_from_vrf_update_all bgpd/bgp_mplsvpn.c:2005
    #5 0x55cdc9cd6abc in vpn_leak_postchange bgpd/bgp_mplsvpn.h:287
    #6 0x55cdc9cd6abc in af_label_vpn_export_allocation_mode_magic bgpd/bgp_vty.c:9464
    #7 0x55cdc9cd6abc in af_label_vpn_export_allocation_mode bgpd/bgp_vty_clippy.c:2809
    #8 0x7f81fbede511 in cmd_execute_command_real lib/command.c:978
    #9 0x7f81fbede9d5 in cmd_execute_command lib/command.c:1036
    #10 0x7f81fbedee54 in cmd_execute lib/command.c:1203
    #11 0x7f81fc007e20 in vty_command lib/vty.c:591
    #12 0x7f81fc0082cb in vty_execute lib/vty.c:1354
    #13 0x7f81fc010b95 in vtysh_read lib/vty.c:2362
    #14 0x7f81fbffbb8f in event_call lib/event.c:1969
    #15 0x7f81fbf3e462 in frr_run lib/libfrr.c:1213
    #16 0x55cdc9af854b in main bgpd/bgp_main.c:510
    #17 0x7f81faf80c86 in __libc_start_main (/lib/x86_64-linux-gnu/libc.so.6+0x21c86)

Indirect leak of 56 byte(s) in 7 object(s) allocated from:
    #0 0x7f81fc562b40 in __interceptor_malloc (/usr/lib/x86_64-linux-gnu/libasan.so.4+0xdeb40)
    #1 0x7f81fbf5aee3 in qmalloc lib/memory.c:100
    #2 0x55cdc9b28eb8 in ecommunity_dup bgpd/bgp_ecommunity.c:256
    #3 0x55cdc9bd68eb in vpn_leak_from_vrf_update bgpd/bgp_mplsvpn.c:1628
    #4 0x55cdc9bd93b3 in vpn_leak_from_vrf_update_all bgpd/bgp_mplsvpn.c:2005
    #5 0x55cdc9cd5ebb in vpn_leak_postchange bgpd/bgp_mplsvpn.h:287
    #6 0x55cdc9cd5ebb in af_label_vpn_export_magic bgpd/bgp_vty.c:9547
    #7 0x55cdc9cd5ebb in af_label_vpn_export bgpd/bgp_vty_clippy.c:2868
    #8 0x7f81fbede511 in cmd_execute_command_real lib/command.c:978
    #9 0x7f81fbede9d5 in cmd_execute_command lib/command.c:1036
    #10 0x7f81fbedee54 in cmd_execute lib/command.c:1203
    #11 0x7f81fc007e20 in vty_command lib/vty.c:591
    #12 0x7f81fc0082cb in vty_execute lib/vty.c:1354
    #13 0x7f81fc010b95 in vtysh_read lib/vty.c:2362
    #14 0x7f81fbffbb8f in event_call lib/event.c:1969
    #15 0x7f81fbf3e462 in frr_run lib/libfrr.c:1213
    #16 0x55cdc9af854b in main bgpd/bgp_main.c:510
    #17 0x7f81faf80c86 in __libc_start_main (/lib/x86_64-linux-gnu/libc.so.6+0x21c86)

Indirect leak of 56 byte(s) in 7 object(s) allocated from:
    #0 0x7f81fc562b40 in __interceptor_malloc (/usr/lib/x86_64-linux-gnu/libasan.so.4+0xdeb40)
    #1 0x7f81fbf5aee3 in qmalloc lib/memory.c:100
    #2 0x55cdc9b28eb8 in ecommunity_dup bgpd/bgp_ecommunity.c:256
    #3 0x55cdc9bd68eb in vpn_leak_from_vrf_update bgpd/bgp_mplsvpn.c:1628
    #4 0x55cdc9c4686d in bgp_update bgpd/bgp_route.c:4969
    #5 0x55cdc9c4934d in bgp_nlri_parse_ip bgpd/bgp_route.c:6213
    #6 0x55cdc9bfaa0e in bgp_nlri_parse bgpd/bgp_packet.c:341
    #7 0x55cdc9bfcf7c in bgp_update_receive bgpd/bgp_packet.c:2220
    #8 0x55cdc9c08474 in bgp_process_packet bgpd/bgp_packet.c:3386
    #9 0x7f81fbffbb8f in event_call lib/event.c:1969
    #10 0x7f81fbf3e462 in frr_run lib/libfrr.c:1213
    #11 0x55cdc9af854b in main bgpd/bgp_main.c:510
    #12 0x7f81faf80c86 in __libc_start_main (/lib/x86_64-linux-gnu/libc.so.6+0x21c86)

Indirect leak of 48 byte(s) in 6 object(s) allocated from:
    #0 0x7f81fc562b40 in __interceptor_malloc (/usr/lib/x86_64-linux-gnu/libasan.so.4+0xdeb40)
    #1 0x7f81fbf5aee3 in qmalloc lib/memory.c:100
    #2 0x55cdc9b28eb8 in ecommunity_dup bgpd/bgp_ecommunity.c:256
    #3 0x55cdc9bd68eb in vpn_leak_from_vrf_update bgpd/bgp_mplsvpn.c:1628
    #4 0x55cdc9bf4289 in evaluate_paths bgpd/bgp_nht.c:1384
    #5 0x55cdc9bf5b0b in bgp_process_nexthop_update bgpd/bgp_nht.c:733
    #6 0x55cdc9bf6027 in bgp_parse_nexthop_update bgpd/bgp_nht.c:934
    #7 0x55cdc9d1b163 in bgp_read_nexthop_update bgpd/bgp_zebra.c:104
    #8 0x7f81fc02bd8a in zclient_read lib/zclient.c:4425
    #9 0x7f81fbffbb8f in event_call lib/event.c:1969
    #10 0x7f81fbf3e462 in frr_run lib/libfrr.c:1213
    #11 0x55cdc9af854b in main bgpd/bgp_main.c:510
    #12 0x7f81faf80c86 in __libc_start_main (/lib/x86_64-linux-gnu/libc.so.6+0x21c86)

Indirect leak of 16 byte(s) in 2 object(s) allocated from:
    #0 0x7f81fc562b40 in __interceptor_malloc (/usr/lib/x86_64-linux-gnu/libasan.so.4+0xdeb40)
    #1 0x7f81fbf5aee3 in qmalloc lib/memory.c:100
    #2 0x55cdc9b28eb8 in ecommunity_dup bgpd/bgp_ecommunity.c:256
    #3 0x55cdc9bd68eb in vpn_leak_from_vrf_update bgpd/bgp_mplsvpn.c:1628
    #4 0x55cdc9bf4188 in evaluate_paths bgpd/bgp_nht.c:1348
    #5 0x55cdc9bf5b0b in bgp_process_nexthop_update bgpd/bgp_nht.c:733
    #6 0x55cdc9bf6027 in bgp_parse_nexthop_update bgpd/bgp_nht.c:934
    #7 0x55cdc9d1b163 in bgp_read_nexthop_update bgpd/bgp_zebra.c:104
    #8 0x7f81fc02bd8a in zclient_read lib/zclient.c:4425
    #9 0x7f81fbffbb8f in event_call lib/event.c:1969
    #10 0x7f81fbf3e462 in frr_run lib/libfrr.c:1213
    #11 0x55cdc9af854b in main bgpd/bgp_main.c:510
    #12 0x7f81faf80c86 in __libc_start_main (/lib/x86_64-linux-gnu/libc.so.6+0x21c86)

Indirect leak of 16 byte(s) in 2 object(s) allocated from:
    #0 0x7f81fc562b40 in __interceptor_malloc (/usr/lib/x86_64-linux-gnu/libasan.so.4+0xdeb40)
    #1 0x7f81fbf5aee3 in qmalloc lib/memory.c:100
    #2 0x55cdc9b28eb8 in ecommunity_dup bgpd/bgp_ecommunity.c:256
    #3 0x55cdc9bd68eb in vpn_leak_from_vrf_update bgpd/bgp_mplsvpn.c:1628
    #4 0x55cdc9bd93b3 in vpn_leak_from_vrf_update_all bgpd/bgp_mplsvpn.c:2005
    #5 0x55cdc9bdafd5 in vpn_leak_postchange bgpd/bgp_mplsvpn.h:287
    #6 0x55cdc9bdafd5 in vpn_leak_label_callback bgpd/bgp_mplsvpn.c:581
    #7 0x55cdc9bb2606 in lp_cbq_docallback bgpd/bgp_labelpool.c:118
    #8 0x7f81fc0164b5 in work_queue_run lib/workqueue.c:266
    #9 0x7f81fbffbb8f in event_call lib/event.c:1969
    #10 0x7f81fbf3e462 in frr_run lib/libfrr.c:1213
    #11 0x55cdc9af854b in main bgpd/bgp_main.c:510
    #12 0x7f81faf80c86 in __libc_start_main (/lib/x86_64-linux-gnu/libc.so.6+0x21c86)

Indirect leak of 8 byte(s) in 1 object(s) allocated from:
    #0 0x7f81fc562b40 in __interceptor_malloc (/usr/lib/x86_64-linux-gnu/libasan.so.4+0xdeb40)
    #1 0x7f81fbf5aee3 in qmalloc lib/memory.c:100
    #2 0x55cdc9b28eb8 in ecommunity_dup bgpd/bgp_ecommunity.c:256
    #3 0x55cdc9bd68eb in vpn_leak_from_vrf_update bgpd/bgp_mplsvpn.c:1628
    #4 0x55cdc9c52406 in bgp_redistribute_add bgpd/bgp_route.c:8692
    #5 0x55cdc9d1ab3b in zebra_read_route bgpd/bgp_zebra.c:595
    #6 0x7f81fc02bd8a in zclient_read lib/zclient.c:4425
    #7 0x7f81fbffbb8f in event_call lib/event.c:1969
    #8 0x7f81fbf3e462 in frr_run lib/libfrr.c:1213
    #9 0x55cdc9af854b in main bgpd/bgp_main.c:510
    #10 0x7f81faf80c86 in __libc_start_main (/lib/x86_64-linux-gnu/libc.so.6+0x21c86)

SUMMARY: AddressSanitizer: 1536 byte(s) leaked in 64 allocation(s).
***********************************************************************************

Signed-off-by: ryndia <dindyalsarvesh@gmail.com>
(cherry picked from commit 78b6cadc16)
2023-10-13 15:48:26 +00:00
Donald Sharp
0c91f45d96 Revert "lib: register bgp link-state afi/safi"
This reverts commit 1642a68d60.

(cherry picked from commit 0dc12c9003)
2023-10-11 05:02:54 +00:00
Donald Sharp
9b3be70d9e Revert "bgpd: add bgp link-state address-family configuration context"
This reverts commit ae2f3bb5b4.

(cherry picked from commit ddd96b51b0)
2023-10-11 05:02:53 +00:00
Donald Sharp
f98f17d83a Revert "bgpd: accept bgp link-state capability"
This reverts commit 67fe40676e.

(cherry picked from commit a4fcdc4e48)
2023-10-11 05:02:53 +00:00
Donald Sharp
9b9d1809cc Revert "bgpd: store bgp link-state prefixes"
This reverts commit 39a8d354c1.

(cherry picked from commit 59c3a49166)
2023-10-11 05:02:52 +00:00
Donald Sharp
f5132b151d Revert "bgpd: send bgp link-state prefixes"
This reverts commit 0c94fb9cc8.

(cherry picked from commit f75d9050fc)
2023-10-11 05:02:52 +00:00
Donald Sharp
d636ba86c0 Revert "bgpd, lib: extend the size of the prefix string buffer"
This reverts commit bdb3fa3b92.

(cherry picked from commit 8b3e765d19)
2023-10-11 05:02:52 +00:00
Donald Sharp
5bb55d29f5 Revert "bgpd: do not display vty output headers for link-state prefixes"
This reverts commit 3098772467.

(cherry picked from commit 85a63731dc)
2023-10-11 05:02:52 +00:00
Donald Sharp
35b55e6fc2 Revert "bgpd: display link-state prefixes detail"
This reverts commit 7e0d9ff8ba.

(cherry picked from commit 8a6b65f7fd)
2023-10-11 05:02:51 +00:00
Donald Sharp
22f952a7f5 Revert "bgpd: do not announce link-state routes to zebra"
This reverts commit 39fb34275f.

(cherry picked from commit 4ab7fa86b0)
2023-10-11 05:02:51 +00:00
Donald Sharp
cb7df45e6a Revert "bgpd: add bgp default link-state command"
This reverts commit 38a7e20fc9.

(cherry picked from commit 7679d6056b)
2023-10-11 05:02:51 +00:00
Donald Sharp
8e063b9c05 Revert "bgpd: add show bgp link-state link-state commands"
This reverts commit f11f67033f.

(cherry picked from commit d3261fd83f)
2023-10-11 05:02:50 +00:00
Donald Sharp
ca8af99dbb Revert "bgpd: add linkstate debug"
This reverts commit de38eada9c.

(cherry picked from commit 68bae36376)
2023-10-11 05:02:50 +00:00
Donald Sharp
e3f8e7d798 Revert "bgpd: store and send bgp link-state attributes"
This reverts commit 8b531b1107.

(cherry picked from commit 166e52d6a3)
2023-10-11 05:02:49 +00:00
Donald Sharp
a6f5a7aeef Revert "bgpd: do not check attr in bgp_packet_attribute"
This reverts commit eb9e286511.

(cherry picked from commit e7c0191e82)
2023-10-11 05:02:49 +00:00
Donald Sharp
609ee2bd4b Revert "bgpd: fix illegal memory access in bgp_ls_tlv_check_size()"
This reverts commit dae5791c44.

(cherry picked from commit 73a4891ab3)
2023-10-11 05:02:49 +00:00
Donald Sharp
0f02b85a18 Revert "bgpd: fix link_state_hash_cmp()"
This reverts commit 25408c8dbf.

(cherry picked from commit 2263d11630)
2023-10-11 05:02:48 +00:00
Donald Sharp
8ed3bbd19d Revert "bgpd: fix insecure data write with ip addresses"
This reverts commit 54222f9213.

(cherry picked from commit 298d534013)
2023-10-11 05:02:48 +00:00
Donald Sharp
83d4391f7b Revert "bgpd: fix insecure data write with area addresses"
This reverts commit 57d0dc565f.

(cherry picked from commit c0d3acb0a0)
2023-10-11 05:02:48 +00:00
Donald Sharp
82a5f9ee3f Revert "bgpd: fix printing link state ospf opaque data"
This reverts commit e1333d12e0.

(cherry picked from commit 28dab73877)
2023-10-11 05:02:47 +00:00
Russ White
03d1b44c9b
Merge pull request #14535 from opensourcerouting/fix/bgp_aggregate_stuff
bgpd: Drop redundant assignment for aspath segment type and length
2023-10-10 11:36:34 -04:00
Rafael Zalamena
4a60045688
Merge pull request #10733 from anlancs/zebra-remove-update
zebra: remove ZEBRA_INTERFACE_VRF_UPDATE
2023-10-08 10:52:54 -03:00
anlan_cs
b580c52698 *: remove ZEBRA_INTERFACE_VRF_UPDATE
Currently when one interface changes its VRF, zebra will send these messages to
all daemons in *order*:
    1) `ZEBRA_INTERFACE_DELETE` ( notify them delete from old VRF )
    2) `ZEBRA_INTERFACE_VRF_UPDATE` ( notify them move from old to new VRF )
    3) `ZEBRA_INTERFACE_ADD` ( notify them added into new VRF )

When daemons deal with `VRF_UPDATE`, they use
`zebra_interface_vrf_update_read()->if_lookup_by_name()`
to check the interface exist or not in old VRF. This check will always return
*NULL* because `DELETE` ( deleted from old VRF ) is already done, so can't
find this interface in old VRF.

Send `VRF_UPDATE` is redundant and unuseful. `DELETE` and `ADD` are enough,
they will deal with RB tree, so don't send this `VRF_UPDATE` message when
vrf changes.

Since all daemons have good mechanism to deal with changing vrf, and don't
use this `VRF_UPDATE` mechanism.  So, it is safe to completely remove
all the code with `VRF_UPDATE`.

Signed-off-by: anlan_cs <anlan_cs@tom.com>
2023-10-07 10:06:39 +08:00
Donatas Abraitis
fc9a8da45e bgpd: Drop redundant assignment for aspath segment type and length
They are already initialized via assegment_new().

Signed-off-by: Donatas Abraitis <donatas@opensourcerouting.org>
2023-10-05 22:46:54 +03:00
Donatas Abraitis
90aa39ecef bgpd: Add guards for zlog_debug when setting GTSM for the peer
Signed-off-by: Donatas Abraitis <donatas@opensourcerouting.org>
2023-10-03 17:46:24 +03:00
Russ White
373d46d0f7
Merge pull request #14511 from opensourcerouting/fix/bgpd_software_version_capability
bgpd: Validate maximum length of software version when handling via dynamic caps
2023-10-03 10:36:21 -04:00
Philippe Guibert
aa511000e0 bgpd: add 'match community-list any' function
There is no match mechanism to match one community from the
incoming community-list. Add the 'any' keyword to the 'match
route-map' command of communit-list and large-community-list.

> match community-list AAA any
> match large-community-list AAA any

Signed-off-by: Philippe Guibert <philippe.guibert@6wind.com>
2023-10-02 15:24:18 +02:00
Donatas Abraitis
5e8a8d0ed6 bgpd: Validate maximum length of software version when handling via dynamic caps
We should not allow exceeding the stream's length, and also software version
can't be larger than 64 bytes.

Signed-off-by: Donatas Abraitis <donatas@opensourcerouting.org>
2023-09-29 12:13:43 +03:00
Donatas Abraitis
02d8b80ce4 *: Do not cast to the same type as the destination is
Signed-off-by: Donatas Abraitis <donatas@opensourcerouting.org>
2023-09-29 10:24:16 +03:00
Donatas Abraitis
b9cbecbd16
Merge pull request #14506 from louis-6wind/fix-bgp-link-state
bgpd: fix link state coverity scan issues
2023-09-29 08:29:31 +03:00
Donald Sharp
1001a578ea
Merge pull request #14483 from opensourcerouting/fix/ignore_setting_ttl_for_negative_socket
bgpd: Set the TTL for the correct socket
2023-09-28 15:37:33 -04:00
Louis Scalbert
e1333d12e0 bgpd: fix printing link state ospf opaque data
Fix printing link state ospf opaque data. pnt address was not moving
in the loop.

Fixes: 8b531b1107 ("bgpd: store and send bgp link-state attributes")
Signed-off-by: Louis Scalbert <louis.scalbert@6wind.com>
2023-09-28 18:59:34 +02:00
Louis Scalbert
57d0dc565f bgpd: fix insecure data write with area addresses
Fix an issue where an attacker may inject a tainted length value to
corrupt the memory.

> CID 1568380 (#1 of 1): Untrusted value as argument (TAINTED_SCALAR)
> 9. tainted_data: Passing tainted expression length to bgp_linkstate_nlri_value_display, which uses it as an offset

Fixes: 8b531b1107 ("bgpd: store and send bgp link-state attributes")  Signed-off-by: Louis Scalbert <louis.scalbert@6wind.com>
2023-09-28 17:51:26 +02:00
Louis Scalbert
54222f9213 bgpd: fix insecure data write with ip addresses
Fix issues where an attacker may inject a tainted length value to
corrupt the memory.

> CID 1568378 (#1-6 of 6): Untrusted value as argument (TAINTED_SCALAR)
> 16. tainted_data: Passing tainted expression length to bgp_linkstate_tlv_attribute_value_display, which uses it as an offset. [show details]

Fixes: 7e0d9ff8ba ("bgpd: display link-state prefixes detail")
Signed-off-by: Louis Scalbert <louis.scalbert@6wind.com>
2023-09-28 17:51:23 +02:00