Go to file
Donald Sharp 42aa465ed1 zebra: Remove rib_lookup_and_pushup function
The rib_lookup_and_pushup function, from what I can tell, was
used more when static route processing and connected routes were
more closely integrated in zebra.  The goal was when we were adding
a new address to remove the connected route and then allow processing
of the new address.  With the re-org a few years ago to seperate
out connected routes as well as static routes, I believe this is
no longer needed.

on BSD, without this code change we have this log:
2021/08/05 14:33:38 ZEBRA: [QEVVE-G3FQQ] rib_meta_queue_add: (0:0):10.40.30.0/24: queued rn 0x802022bb0 into sub-queue 4
2021/08/05 14:33:38 ZEBRA: [ZPR30-5G1FB] Kernel: Len: 200 Type: RTM_DELETE
2021/08/05 14:33:38 ZEBRA: [V3NSB-BPKBD] Kernel: GATEWAY DONE PROTO1
2021/08/05 14:33:38 ZEBRA: [HDTM1-ENZNM] Kernel: message seq 15
2021/08/05 14:33:38 ZEBRA: [MJD4M-0AAAR] Kernel: pid 53305, rtm_addrs {DST,GATEWAY,NETMASK}
2021/08/05 14:33:38 ZEBRA: [Y9Y5K-JJ7NT] rtm_read: got rtm of type 2 (RTM_DELETE) addrs {DST,GATEWAY,NETMASK}
2021/08/05 14:33:38 ZEBRA: [V17DT-1FJEN] kernel_rtm: 10.40.30.0/24: successfully did NH 9.8.6.7
2021/08/05 14:33:38 ZEBRA: [ZPR30-5G1FB] Kernel: Len: 164 Type: RTM_NEWADDR
2021/08/05 14:33:38 ZEBRA: [V3NSB-BPKBD] Kernel:
2021/08/05 14:33:38 ZEBRA: [HDTM1-ENZNM] Kernel: message seq 4664
2021/08/05 14:33:38 ZEBRA: [MJD4M-0AAAR] Kernel: pid 0, rtm_addrs {DST}
2021/08/05 14:33:38 ZEBRA: [M09CX-TKB4N] ifam_read_mesg: ifindex 1, ifname vtnet0, ifam_addrs {NETMASK,IFP,IFA,BRD}, ifam_flags 0x0, addr 10.40.30.1/24 broad 10.40.30.255 dst (unspec) gateway (unspec)
2021/08/05 14:33:38 ZEBRA: [MFYWV-KH3MC] rib_add_multipath_nhe: (0:0):10.40.30.0/24: Inserting route rn 0x802022bb0, re 0x8032973a0 (connected) existing 0x0, same_count 0
2021/08/05 14:33:38 ZEBRA: [Q4T2G-E2SQF] rib_add_multipath_nhe: dumping RE entry 0x8032973a0 for 10.40.30.0/24 vrf default(0)
2021/08/05 14:33:38 ZEBRA: [M5M58-9PD2R] 10.40.30.0/24: uptime == 1379355, type == 2, instance == 0, table == 0
2021/08/05 14:33:38 ZEBRA: [RVZMM-N7DME] 10.40.30.0/24: metric == 1, mtu == 0, distance == 0, flags == None status == None
2021/08/05 14:33:38 ZEBRA: [Q1NW5-NWY7P] 10.40.30.0/24: nexthop_num == 1, nexthop_active_num == 0
2021/08/05 14:33:38 ZEBRA: [TFHQ8-TC30H] 10.40.30.0/24: NH vtnet0[1] vrf default(0)  with flags
2021/08/05 14:33:38 ZEBRA: [SCETK-GQ9E4] 10.40.30.0/24: dump complete
2021/08/05 14:33:38 ZEBRA: [QEVVE-G3FQQ] rib_meta_queue_add: (0:0):10.40.30.0/24: queued rn 0x802022bb0 into sub-queue 2
2021/08/05 14:33:38 ZEBRA: [MFYWV-KH3MC] rib_add_multipath_nhe: (0:?):10.40.30.0/24 (MRIB): Inserting route rn 0x802022f30, re 0x803297340 (connected) existing 0x0, same_count 0
2021/08/05 14:33:38 ZEBRA: [Q4T2G-E2SQF] rib_add_multipath_nhe: dumping RE entry 0x803297340 for 10.40.30.0/24 vrf default(0)
2021/08/05 14:33:38 ZEBRA: [M5M58-9PD2R] 10.40.30.0/24: uptime == 1379355, type == 2, instance == 0, table == 0
2021/08/05 14:33:38 ZEBRA: [RVZMM-N7DME] 10.40.30.0/24: metric == 1, mtu == 0, distance == 0, flags == None status == None
2021/08/05 14:33:38 ZEBRA: [Q1NW5-NWY7P] 10.40.30.0/24: nexthop_num == 1, nexthop_active_num == 0
2021/08/05 14:33:38 ZEBRA: [TFHQ8-TC30H] 10.40.30.0/24: NH vtnet0[1] vrf default(0)  with flags
2021/08/05 14:33:38 ZEBRA: [SCETK-GQ9E4] 10.40.30.0/24: dump complete
2021/08/05 14:33:38 ZEBRA: [GCGMT-SQR82] rib_link: (0:?):10.40.30.0/24 (MRIB): rn 0x802022f30 adding dest
2021/08/05 14:33:38 ZEBRA: [QEVVE-G3FQQ] rib_meta_queue_add: (0:0):10.40.30.0/24 (MRIB): queued rn 0x802022f30 into sub-queue 2
2021/08/05 14:33:38 ZEBRA: [ZPR30-5G1FB] Kernel: Len: 240 Type: RTM_ADD
2021/08/05 14:33:38 ZEBRA: [V3NSB-BPKBD] Kernel: UP PINNED
2021/08/05 14:33:38 ZEBRA: [HDTM1-ENZNM] Kernel: message seq 0
2021/08/05 14:33:38 ZEBRA: [MJD4M-0AAAR] Kernel: pid 0, rtm_addrs {DST,GATEWAY,NETMASK}
2021/08/05 14:33:38 ZEBRA: [K0KVE-2GJA1] default(0:0):10.40.30.0/24: Processing rn 0x802022bb0
2021/08/05 14:33:38 ZEBRA: [RWCK7-TX4HT] default(0:0):10.40.30.0/24: Examine re 0x8032973a0 (connected) status: Changed flags: None dist 0 metric 1
2021/08/05 14:33:38 ZEBRA: [RWCK7-TX4HT] default(0:0):10.40.30.0/24: Examine re 0x8032970a0 (static) status: None flags: Recursion RR Distance dist 1 metric 0
2021/08/05 14:33:38 ZEBRA: [NYYJJ-0Q8QG] default(0:0):10.40.30.0/24: After processing: old_selected 0x0 new_selected 0x8032973a0 old_fib 0x0 new_fib 0x8032973a0
2021/08/05 14:33:38 ZEBRA: [RT9DY-ZS2KN] default(0:0):10.40.30.0/24: Adding route rn 0x802022bb0, re 0x8032973a0 (connected)
2021/08/05 14:33:38 ZEBRA: [PP3BZ-RABJN] default(0:0):10.40.30.0/24: rn 0x802022bb0 dequeued from sub-queue 2
2021/08/05 14:33:38 ZEBRA: [K0KVE-2GJA1] default(0:0):10.40.30.0/24: Processing rn 0x802022f30
2021/08/05 14:33:38 ZEBRA: [RWCK7-TX4HT] default(0:0):10.40.30.0/24: Examine re 0x803297340 (connected) status: Changed flags: None dist 0 metric 1
2021/08/05 14:33:38 ZEBRA: [NYYJJ-0Q8QG] default(0:0):10.40.30.0/24: After processing: old_selected 0x0 new_selected 0x803297340 old_fib 0x0 new_fib 0x803297340
2021/08/05 14:33:38 ZEBRA: [RT9DY-ZS2KN] default(0:0):10.40.30.0/24: Adding route rn 0x802022f30, re 0x803297340 (connected)
2021/08/05 14:33:38 ZEBRA: [PP3BZ-RABJN] default(0:0):10.40.30.0/24: rn 0x802022f30 dequeued from sub-queue 2
2021/08/05 14:33:38 ZEBRA: [K0KVE-2GJA1] default(0:0):10.40.30.0/24: Processing rn 0x802022bb0
2021/08/05 14:33:38 ZEBRA: [RWCK7-TX4HT] default(0:0):10.40.30.0/24: Examine re 0x8032973a0 (connected) status: Queued flags: Selected dist 0 metric 1
2021/08/05 14:33:38 ZEBRA: [RWCK7-TX4HT] default(0:0):10.40.30.0/24: Examine re 0x8032970a0 (static) status: None flags: Recursion RR Distance dist 1 metric 0
2021/08/05 14:33:38 ZEBRA: [NYYJJ-0Q8QG] default(0:0):10.40.30.0/24: After processing: old_selected 0x8032973a0 new_selected 0x8032973a0 old_fib 0x8032973a0 new_fib 0x8032973a0
2021/08/05 14:33:38 ZEBRA: [PP3BZ-RABJN] default(0:0):10.40.30.0/24: rn 0x802022bb0 dequeued from sub-queue 4
2021/08/05 14:33:38 ZEBRA: [GHWHS-ZKQM5] update_from_ctx: default(0:0):10.40.30.0/24: SELECTED, re 0x8032973a0
2021/08/05 14:33:38 ZEBRA: [TS3SH-1276M] default(0:0):10.40.30.0/24 update_from_ctx(): no fib nhg
2021/08/05 14:33:38 ZEBRA: [HKQXC-4STSK] default(0:0):10.40.30.0/24 update_from_ctx(): rib nhg matched, changed 'false'
2021/08/05 14:33:38 ZEBRA: [HBZNK-5H1X0] (0:0):10.40.30.0/24: Redist update re 0x8032973a0 (connected), old 0x0 (None)
2021/08/05 14:33:38 ZEBRA: [GHWHS-ZKQM5] update_from_ctx: default(0:0):10.40.30.0/24: SELECTED, re 0x8032973a0
2021/08/05 14:33:38 ZEBRA: [TS3SH-1276M] default(0:0):10.40.30.0/24 update_from_ctx(): no fib nhg
2021/08/05 14:33:38 ZEBRA: [HKQXC-4STSK] default(0:0):10.40.30.0/24 update_from_ctx(): rib nhg matched, changed 'false'
2021/08/05 14:33:38 ZEBRA: [HBZNK-5H1X0] (0:0):10.40.30.0/24: Redist update re 0x8032973a0 (connected), old 0x0 (None)

With this code change:

2021/08/05 14:41:24 ZEBRA: [MFYWV-KH3MC] rib_add_multipath_nhe: (0:?):10.10.40.0/24: Inserting route rn 0x802022f30, re 0x8021cbe60 (static) existing 0x0, same_count 0
2021/08/05 14:41:24 ZEBRA: [RT9DY-ZS2KN] default(0:0):10.10.40.0/24: Adding route rn 0x802022f30, re 0x8021cbe60 (static)
2021/08/05 14:41:24 ZEBRA: [V17DT-1FJEN] kernel_rtm: 10.10.40.0/24: successfully did NH 9.8.6.7
2021/08/05 14:41:24 ZEBRA: [ZPR30-5G1FB] Kernel: Len: 200 Type: RTM_ADD
2021/08/05 14:41:24 ZEBRA: [V3NSB-BPKBD] Kernel: UP GATEWAY DONE PROTO1
2021/08/05 14:41:24 ZEBRA: [HDTM1-ENZNM] Kernel: message seq 0
2021/08/05 14:41:24 ZEBRA: [MJD4M-0AAAR] Kernel: pid 60818, rtm_addrs {DST,GATEWAY,NETMASK}
2021/08/05 14:41:24 ZEBRA: [Y9Y5K-JJ7NT] rtm_read: got rtm of type 1 (RTM_ADD) addrs {DST,GATEWAY,NETMASK}
2021/08/05 14:41:24 ZEBRA: [TS3SH-1276M] default(0:0):10.10.40.0/24 update_from_ctx(): no fib nhg
2021/08/05 14:41:24 ZEBRA: [HKQXC-4STSK] default(0:0):10.10.40.0/24 update_from_ctx(): rib nhg matched, changed 'true'
2021/08/05 14:41:24 ZEBRA: [HBZNK-5H1X0] (0:0):10.10.40.0/24: Redist update re 0x8021cbe60 (static), old 0x0 (None)
2021/08/05 14:42:06 ZEBRA: [ZJ4AV-JEMJ3] dplane_intf_addr_set
2021/08/05 14:42:06 ZEBRA: [ZPR30-5G1FB] Kernel: Len: 164 Type: RTM_NEWADDR
2021/08/05 14:42:06 ZEBRA: [V3NSB-BPKBD] Kernel:
2021/08/05 14:42:06 ZEBRA: [HDTM1-ENZNM] Kernel: message seq 4664
2021/08/05 14:42:06 ZEBRA: [MJD4M-0AAAR] Kernel: pid 0, rtm_addrs {DST}
2021/08/05 14:42:06 ZEBRA: [M09CX-TKB4N] ifam_read_mesg: ifindex 1, ifname vtnet0, ifam_addrs {NETMASK,IFP,IFA,BRD}, ifam_flags 0x0, addr 10.10.40.3/24 broad 10.10.40.255 dst (unspec) gateway (unspec)
2021/08/05 14:42:06 ZEBRA: [MFYWV-KH3MC] rib_add_multipath_nhe: (0:0):10.10.40.0/24: Inserting route rn 0x802022f30, re 0x80308c4c0 (connected) existing 0x0, same_count 0
2021/08/05 14:42:06 ZEBRA: [MFYWV-KH3MC] rib_add_multipath_nhe: (0:?):10.10.40.0/24 (MRIB): Inserting route rn 0x802023160, re 0x80308c460 (connected) existing 0x0, same_count 0
2021/08/05 14:42:06 ZEBRA: [ZPR30-5G1FB] Kernel: Len: 240 Type: RTM_ADD
2021/08/05 14:42:06 ZEBRA: [V3NSB-BPKBD] Kernel: UP PINNED
2021/08/05 14:42:06 ZEBRA: [HDTM1-ENZNM] Kernel: message seq 0
2021/08/05 14:42:06 ZEBRA: [MJD4M-0AAAR] Kernel: pid 0, rtm_addrs {DST,GATEWAY,NETMASK}
2021/08/05 14:42:06 ZEBRA: [RG9Y6-E93A0] default(0:0):10.10.40.0/24: Updating route rn 0x802022f30, re 0x80308c4c0 (connected) old 0x8021cbe60 (static)
2021/08/05 14:42:06 ZEBRA: [RT9DY-ZS2KN] default(0:0):10.10.40.0/24: Adding route rn 0x802023160, re 0x80308c460 (connected)
2021/08/05 14:42:06 ZEBRA: [THSYN-E2XFY][EC 100663299] rtm_write: write : Address already in use (48)
2021/08/05 14:42:06 ZEBRA: [RV5F2-MQGZG][EC 100663303] kernel_rtm: 10.10.40.0/24: rtm_write() unexpectedly returned -5 for command RTM_DELETE
2021/08/05 14:42:06 ZEBRA: [ZPR30-5G1FB] Kernel: Len: 200 Type: RTM_DELETE
2021/08/05 14:42:06 ZEBRA: [V3NSB-BPKBD] Kernel: UP PROTO1
2021/08/05 14:42:06 ZEBRA: [HDTM1-ENZNM] Kernel: message seq 1
2021/08/05 14:42:06 ZEBRA: [MJD4M-0AAAR] Kernel: pid 60818, rtm_addrs {DST,GATEWAY,NETMASK}
2021/08/05 14:42:06 ZEBRA: [XASXT-GF69Y] kernel_rtm: No useful nexthops were found in RIB prefix 10.10.40.0/24
2021/08/05 14:42:06 ZEBRA: [TS3SH-1276M] default(0:0):10.10.40.0/24 update_from_ctx(): no fib nhg
2021/08/05 14:42:06 ZEBRA: [HKQXC-4STSK] default(0:0):10.10.40.0/24 update_from_ctx(): rib nhg matched, changed 'false'
2021/08/05 14:42:06 ZEBRA: [HBZNK-5H1X0] (0:0):10.10.40.0/24: Redist update re 0x80308c4c0 (connected), old 0x8021cbe60 (static)

netstat -rn:

10.10.40.0/24      link#1             U        vtnet0
10.10.40.3         link#1             UHS         lo0

show ip route:
C>* 10.10.40.0/24 [0/1] is directly connected, vtnet0, 00:18:48
S   10.10.40.0/24 [1/0] via 9.8.6.7, vtnet0, weight 1, 00:19:30

Signed-off-by: Donald Sharp <sharpd@nvidia.com>
2021-08-06 10:04:40 -04:00
.github .github: improve bug report template 2020-10-20 16:12:03 -04:00
alpine build, doc: extricate --enable-systemd 2021-06-29 17:57:09 +02:00
babeld *: cleanup interface node installation 2021-07-29 21:35:25 +03:00
bfdd *: Do not check for XMALLOC/XCALLOC against NULLs 2021-06-29 22:27:50 +03:00
bgpd bgpd: Fix misleading comments for some parts 2021-08-05 16:29:52 +03:00
debian Merge pull request #8508 from opensourcerouting/systemd-no-lib 2021-07-06 14:54:25 +00:00
doc Merge pull request #9108 from opensourcerouting/ospf6d-range-fixes 2021-08-03 21:15:12 -04:00
docker Merge pull request #8508 from opensourcerouting/systemd-no-lib 2021-07-06 14:54:25 +00:00
eigrpd *: cleanup interface node installation 2021-07-29 21:35:25 +03:00
fpm build: fix AM_LDFLAGS usage (and gcov) 2021-07-21 17:10:08 +02:00
gdb bgpd: Convert binfo to path 2018-10-09 14:26:30 -04:00
grpc build: fix AM_LDFLAGS usage (and gcov) 2021-07-21 17:10:08 +02:00
include nhrpd: cleaning netlink gre information 2021-04-30 10:33:18 +02:00
isisd *: cleanup interface node installation 2021-07-29 21:35:25 +03:00
ldpd build: fix AM_LDFLAGS usage (and gcov) 2021-07-21 17:10:08 +02:00
lib bgpd: Fix misleading comments for some parts 2021-08-05 16:29:52 +03:00
m4 grpc: improve checks for GRPC C++ requirements 2021-05-22 00:01:06 +00:00
mlag build: fix AM_LDFLAGS usage (and gcov) 2021-07-21 17:10:08 +02:00
nhrpd nhrp: fix display of nhs command. 2021-08-03 14:10:54 +03:00
ospf6d Merge pull request #9108 from opensourcerouting/ospf6d-range-fixes 2021-08-03 21:15:12 -04:00
ospfclient build: fix AM_LDFLAGS usage (and gcov) 2021-07-21 17:10:08 +02:00
ospfd Merge pull request #9092 from rgirada/rmap 2021-08-03 21:18:21 -04:00
pathd Merge pull request #9102 from opensourcerouting/autoconf-fix-gcov 2021-07-21 19:26:15 -04:00
pbrd *: cleanup interface node installation 2021-07-29 21:35:25 +03:00
pceplib pceplib: Extract fields needed for PcInitiated with Cisco pce. (1/4) 2021-06-22 12:04:03 +02:00
pimd Merge pull request #9085 from mobash-rasool/pim-upst-4 2021-08-03 21:21:14 -04:00
pkgsrc *: cleanup .gitignore files 2018-09-08 21:30:42 +02:00
python build: add -Werror to xrelfo log format warnings 2021-06-24 16:42:59 +02:00
qpb build: fix AM_LDFLAGS usage (and gcov) 2021-07-21 17:10:08 +02:00
redhat build, doc: extricate --enable-systemd 2021-06-29 17:57:09 +02:00
ripd bgpd: Fix misleading comments for some parts 2021-08-05 16:29:52 +03:00
ripngd *: cleanup interface node installation 2021-07-29 21:35:25 +03:00
sharpd *: Replace 4/16 integers to IPV4_MAX_BYTELEN/IPV6_MAX_BYTELEN 2021-07-01 23:54:39 +03:00
snapcraft snapcraft: Update rtrlib to 0.7.0 2021-01-07 02:16:19 +01:00
staticd Merge pull request #9023 from idryzhov/static-nb 2021-08-05 09:38:00 -04:00
tests Merge pull request #9050 from LabNConsulting/chopps/reset-parallel 2021-08-04 16:17:30 -04:00
tools tools: improve frr-reload.py delta file creation 2021-07-15 22:12:01 -04:00
vrrpd *: cleanup interface node installation 2021-07-29 21:35:25 +03:00
vtysh vtysh: don't install "enable" command in user mode 2021-07-25 13:08:04 +03:00
watchfrr lib, watchfrr: remove HAVE_SYSTEMD, use own code 2021-06-29 17:57:04 +02:00
yang pimd: Allow join prune intervals to be as small as 5 seconds 2021-07-26 10:02:21 -04:00
zebra zebra: Remove rib_lookup_and_pushup function 2021-08-06 10:04:40 -04:00
.clang-format lib: adapt to version 2 of libyang 2021-05-13 16:24:48 -04:00
.dir-locals.el tools: fix emacs configuration file 2019-11-04 11:45:52 -03:00
.dockerignore docker: Make docker image on CentOS 7 2019-11-26 19:29:30 +00:00
.git-blame-ignore-revs tools: Ignore mass renaming of topotests for git blame 2021-05-11 14:14:26 +03:00
.gitignore debian: Remove the changelog-auto automation in favor of dch 2021-07-03 17:02:37 +02:00
.travis.yml lib: libyang2 add missed conversion 2021-05-17 22:13:59 -04:00
bootstrap.sh build: turn on automake warnings (& symlinks) 2021-04-21 15:42:37 +02:00
buildtest.sh build: remove --enable-exampledir 2021-06-24 16:42:58 +02:00
config.version.in build: carry --with-pkg-extra-version into tarballs 2018-10-24 15:11:50 +02:00
configure.ac build: use --coverage for gcov 2021-07-21 17:12:02 +02:00
COPYING *: make consistent & update GPLv2 file headers 2017-05-15 16:37:41 +02:00
COPYING-LGPLv2.1 build: remove LGPL v2.0, add LGPL v2.1 2016-11-15 17:19:38 +09:00
Makefile.am build: fix AM_LDFLAGS usage (and gcov) 2021-07-21 17:10:08 +02:00
README.md doc: Update Documentation to note Solaris Unsupported status 2020-09-21 10:02:20 -04:00
stamp-h.in Initial revision 2002-12-13 20:15:29 +00:00
version.h build: make builddir include path consistent 2021-04-21 15:42:33 +02:00

Icon

FRRouting

FRR is free software that implements and manages various IPv4 and IPv6 routing protocols. It runs on nearly all distributions of Linux and BSD and supports all modern CPU architectures.

FRR currently supports the following protocols:

  • BGP
  • OSPFv2
  • OSPFv3
  • RIPv1
  • RIPv2
  • RIPng
  • IS-IS
  • PIM-SM/MSDP
  • LDP
  • BFD
  • Babel
  • PBR
  • OpenFabric
  • VRRP
  • EIGRP (alpha)
  • NHRP (alpha)

Installation & Use

For source tarballs, see the releases page.

For Debian and its derivatives, use the APT repository at https://deb.frrouting.org/.

Instructions on building and installing from source for supported platforms may be found in the developer docs.

Once installed, please refer to the user guide for instructions on use.

Community

The FRRouting email list server is located here and offers the following public lists:

Topic List
Development dev@lists.frrouting.org
Users & Operators frog@lists.frrouting.org
Announcements announce@lists.frrouting.org

For chat, we currently use Slack. You can join by clicking the "Slack" link under the Participate section of our website.

Contributing

FRR maintains developer's documentation which contains the project workflow and expectations for contributors. Some technical documentation on project internals is also available.

We welcome and appreciate all contributions, no matter how small!

Security

To report security issues, please use our security mailing list:

security [at] lists.frrouting.org