bgpd: fix flushing ipv6 flowspec entries when peering stops #15326
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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: 529efa2 ("bgpd: allow flowspec entries to be announced to zebra") Link: FRRouting#2025 Signed-off-by: Philippe Guibert <[email protected]>
lguohan
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Aug 6, 2024
…rns (#19717) Added the below patches which are part of BGP Zebra back pressure feature required to keep the memory usage in check during route churns How I did it New patches that were added: Patch FRR Pull request 0030-zebra-backpressure-Zebra-push-back-on-Buffer-Stream-.patch FRRouting/frr#15411 0031-bgpd-backpressure-Add-a-typesafe-list-for-Zebra-Anno.patch FRRouting/frr#15524 0032-bgpd-fix-flushing-ipv6-flowspec-entries-when-peering.patch FRRouting/frr#15326 0033-bgpd-backpressure-cleanup-bgp_zebra_XX-func-args.patch FRRouting/frr#15524 0034-gpd-backpressure-Handle-BGP-Zebra-Install-evt-Creat.patch FRRouting/frr#15524 0035-bgpd-backpressure-Handle-BGP-Zebra-EPVN-Install-evt-.patch FRRouting/frr#15624 0036-zebra-backpressure-Fix-Null-ptr-access-Coverity-Issu.patch FRRouting/frr#15728 0037-bgpd-Increase-install-uninstall-speed-of-evpn-vpn-vn.patch FRRouting/frr#15727 0038-zebra-Actually-display-I-O-buffer-sizes.patch FRRouting/frr#15708 0039-zebra-Actually-display-I-O-buffer-sizes-part-2.patch FRRouting/frr#15769 0040-bgpd-backpressure-Fix-to-withdraw-evpn-type-5-routes.patch FRRouting/frr#16034 0041-bgpd-backpressure-Fix-to-avoid-CPU-hog.patch FRRouting/frr#16035 0042-zebra-Use-built-in-data-structure-counter.patch FRRouting/frr#16221 0043-zebra-Use-the-ctx-queue-counters.patch FRRouting/frr#16220 0044-zebra-Modify-dplane-loop-to-allow-backpressure-to-fi.patch FRRouting/frr#16220 0045-zebra-Limit-queue-depth-in-dplane_fpm_nl.patch FRRouting/frr#16220 0046-zebra-Modify-show-zebra-dplane-providers-to-give-mor.patch FRRouting/frr#16220 0047-bgpd-backpressure-fix-evpn-route-sync-to-zebra.patch FRRouting/frr#16234 0048-bgpd-backpressure-fix-to-properly-remove-dest-for-bg.patch FRRouting/frr#16368 0049-bgpd-backpressure-Improve-debuggability.patch FRRouting/frr#16368 0050-bgpd-backpressure-Avoid-use-after-free.patch FRRouting/frr#16437 0051-bgpd-backpressure-fix-ret-value-evpn_route_select_in.patch FRRouting/frr#16416 0052-bgpd-backpressure-log-error-for-evpn-when-route-inst.patch FRRouting/frr#16416
matiAlfaro
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Aug 6, 2024
…rns (sonic-net#19717) Added the below patches which are part of BGP Zebra back pressure feature required to keep the memory usage in check during route churns How I did it New patches that were added: Patch FRR Pull request 0030-zebra-backpressure-Zebra-push-back-on-Buffer-Stream-.patch FRRouting/frr#15411 0031-bgpd-backpressure-Add-a-typesafe-list-for-Zebra-Anno.patch FRRouting/frr#15524 0032-bgpd-fix-flushing-ipv6-flowspec-entries-when-peering.patch FRRouting/frr#15326 0033-bgpd-backpressure-cleanup-bgp_zebra_XX-func-args.patch FRRouting/frr#15524 0034-gpd-backpressure-Handle-BGP-Zebra-Install-evt-Creat.patch FRRouting/frr#15524 0035-bgpd-backpressure-Handle-BGP-Zebra-EPVN-Install-evt-.patch FRRouting/frr#15624 0036-zebra-backpressure-Fix-Null-ptr-access-Coverity-Issu.patch FRRouting/frr#15728 0037-bgpd-Increase-install-uninstall-speed-of-evpn-vpn-vn.patch FRRouting/frr#15727 0038-zebra-Actually-display-I-O-buffer-sizes.patch FRRouting/frr#15708 0039-zebra-Actually-display-I-O-buffer-sizes-part-2.patch FRRouting/frr#15769 0040-bgpd-backpressure-Fix-to-withdraw-evpn-type-5-routes.patch FRRouting/frr#16034 0041-bgpd-backpressure-Fix-to-avoid-CPU-hog.patch FRRouting/frr#16035 0042-zebra-Use-built-in-data-structure-counter.patch FRRouting/frr#16221 0043-zebra-Use-the-ctx-queue-counters.patch FRRouting/frr#16220 0044-zebra-Modify-dplane-loop-to-allow-backpressure-to-fi.patch FRRouting/frr#16220 0045-zebra-Limit-queue-depth-in-dplane_fpm_nl.patch FRRouting/frr#16220 0046-zebra-Modify-show-zebra-dplane-providers-to-give-mor.patch FRRouting/frr#16220 0047-bgpd-backpressure-fix-evpn-route-sync-to-zebra.patch FRRouting/frr#16234 0048-bgpd-backpressure-fix-to-properly-remove-dest-for-bg.patch FRRouting/frr#16368 0049-bgpd-backpressure-Improve-debuggability.patch FRRouting/frr#16368 0050-bgpd-backpressure-Avoid-use-after-free.patch FRRouting/frr#16437 0051-bgpd-backpressure-fix-ret-value-evpn_route_select_in.patch FRRouting/frr#16416 0052-bgpd-backpressure-log-error-for-evpn-when-route-inst.patch FRRouting/frr#16416
mssonicbld
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Oct 22, 2024
…rns (sonic-net#19717) Added the below patches which are part of BGP Zebra back pressure feature required to keep the memory usage in check during route churns How I did it New patches that were added: Patch FRR Pull request 0030-zebra-backpressure-Zebra-push-back-on-Buffer-Stream-.patch FRRouting/frr#15411 0031-bgpd-backpressure-Add-a-typesafe-list-for-Zebra-Anno.patch FRRouting/frr#15524 0032-bgpd-fix-flushing-ipv6-flowspec-entries-when-peering.patch FRRouting/frr#15326 0033-bgpd-backpressure-cleanup-bgp_zebra_XX-func-args.patch FRRouting/frr#15524 0034-gpd-backpressure-Handle-BGP-Zebra-Install-evt-Creat.patch FRRouting/frr#15524 0035-bgpd-backpressure-Handle-BGP-Zebra-EPVN-Install-evt-.patch FRRouting/frr#15624 0036-zebra-backpressure-Fix-Null-ptr-access-Coverity-Issu.patch FRRouting/frr#15728 0037-bgpd-Increase-install-uninstall-speed-of-evpn-vpn-vn.patch FRRouting/frr#15727 0038-zebra-Actually-display-I-O-buffer-sizes.patch FRRouting/frr#15708 0039-zebra-Actually-display-I-O-buffer-sizes-part-2.patch FRRouting/frr#15769 0040-bgpd-backpressure-Fix-to-withdraw-evpn-type-5-routes.patch FRRouting/frr#16034 0041-bgpd-backpressure-Fix-to-avoid-CPU-hog.patch FRRouting/frr#16035 0042-zebra-Use-built-in-data-structure-counter.patch FRRouting/frr#16221 0043-zebra-Use-the-ctx-queue-counters.patch FRRouting/frr#16220 0044-zebra-Modify-dplane-loop-to-allow-backpressure-to-fi.patch FRRouting/frr#16220 0045-zebra-Limit-queue-depth-in-dplane_fpm_nl.patch FRRouting/frr#16220 0046-zebra-Modify-show-zebra-dplane-providers-to-give-mor.patch FRRouting/frr#16220 0047-bgpd-backpressure-fix-evpn-route-sync-to-zebra.patch FRRouting/frr#16234 0048-bgpd-backpressure-fix-to-properly-remove-dest-for-bg.patch FRRouting/frr#16368 0049-bgpd-backpressure-Improve-debuggability.patch FRRouting/frr#16368 0050-bgpd-backpressure-Avoid-use-after-free.patch FRRouting/frr#16437 0051-bgpd-backpressure-fix-ret-value-evpn_route_select_in.patch FRRouting/frr#16416 0052-bgpd-backpressure-log-error-for-evpn-when-route-inst.patch FRRouting/frr#16416
mssonicbld
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Oct 23, 2024
…rns (#19717) Added the below patches which are part of BGP Zebra back pressure feature required to keep the memory usage in check during route churns How I did it New patches that were added: Patch FRR Pull request 0030-zebra-backpressure-Zebra-push-back-on-Buffer-Stream-.patch FRRouting/frr#15411 0031-bgpd-backpressure-Add-a-typesafe-list-for-Zebra-Anno.patch FRRouting/frr#15524 0032-bgpd-fix-flushing-ipv6-flowspec-entries-when-peering.patch FRRouting/frr#15326 0033-bgpd-backpressure-cleanup-bgp_zebra_XX-func-args.patch FRRouting/frr#15524 0034-gpd-backpressure-Handle-BGP-Zebra-Install-evt-Creat.patch FRRouting/frr#15524 0035-bgpd-backpressure-Handle-BGP-Zebra-EPVN-Install-evt-.patch FRRouting/frr#15624 0036-zebra-backpressure-Fix-Null-ptr-access-Coverity-Issu.patch FRRouting/frr#15728 0037-bgpd-Increase-install-uninstall-speed-of-evpn-vpn-vn.patch FRRouting/frr#15727 0038-zebra-Actually-display-I-O-buffer-sizes.patch FRRouting/frr#15708 0039-zebra-Actually-display-I-O-buffer-sizes-part-2.patch FRRouting/frr#15769 0040-bgpd-backpressure-Fix-to-withdraw-evpn-type-5-routes.patch FRRouting/frr#16034 0041-bgpd-backpressure-Fix-to-avoid-CPU-hog.patch FRRouting/frr#16035 0042-zebra-Use-built-in-data-structure-counter.patch FRRouting/frr#16221 0043-zebra-Use-the-ctx-queue-counters.patch FRRouting/frr#16220 0044-zebra-Modify-dplane-loop-to-allow-backpressure-to-fi.patch FRRouting/frr#16220 0045-zebra-Limit-queue-depth-in-dplane_fpm_nl.patch FRRouting/frr#16220 0046-zebra-Modify-show-zebra-dplane-providers-to-give-mor.patch FRRouting/frr#16220 0047-bgpd-backpressure-fix-evpn-route-sync-to-zebra.patch FRRouting/frr#16234 0048-bgpd-backpressure-fix-to-properly-remove-dest-for-bg.patch FRRouting/frr#16368 0049-bgpd-backpressure-Improve-debuggability.patch FRRouting/frr#16368 0050-bgpd-backpressure-Avoid-use-after-free.patch FRRouting/frr#16437 0051-bgpd-backpressure-fix-ret-value-evpn_route_select_in.patch FRRouting/frr#16416 0052-bgpd-backpressure-log-error-for-evpn-when-route-inst.patch FRRouting/frr#16416
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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. Without that, routes are not installed, and can not be uninstalled.
Fixes: 529efa2 ("bgpd: allow flowspec entries to be announced to zebra")
Link: #2025