frr/SOURCES/0011-reload-bfd-profile.patch
2022-11-08 10:41:19 +00:00

78 lines
2.9 KiB
Diff

diff --git a/tools/frr-reload.py b/tools/frr-reload.py
index 9979c8b..1c24f90 100755
--- a/tools/frr-reload.py
+++ b/tools/frr-reload.py
@@ -785,6 +785,48 @@ def line_exist(lines, target_ctx_keys, target_line, exact_match=True):
return True
return False
+def delete_bgp_bfd(lines_to_add, lines_to_del):
+ """
+ When 'neighbor <peer> bfd profile <profile>' is present without a
+ 'neighbor <peer> bfd' line, FRR explicitily adds it to the running
+ configuration. When the new configuration drops the bfd profile
+ line, the user's intent is to delete any bfd configuration on the
+ peer. On reload, deleting the bfd profile line after the bfd line
+ will re-enable BFD with the default BFD profile. Move the bfd line
+ to the end, if it exists in the new configuration.
+
+ Example:
+
+ neighbor 10.0.0.1 bfd
+ neighbor 10.0.0.1 bfd profile bfd-profile-1
+
+ Move to end:
+ neighbor 10.0.0.1 bfd profile bfd-profile-1
+ ...
+
+ neighbor 10.0.0.1 bfd
+
+ """
+ lines_to_del_to_app = []
+ for (ctx_keys, line) in lines_to_del:
+ if (
+ ctx_keys[0].startswith("router bgp")
+ and line
+ and line.startswith("neighbor ")
+ ):
+ # 'no neighbor [peer] bfd>'
+ nb_bfd = "neighbor (\S+) .*bfd$"
+ re_nb_bfd = re.search(nb_bfd, line)
+ if re_nb_bfd:
+ lines_to_del_to_app.append((ctx_keys, line))
+
+ for (ctx_keys, line) in lines_to_del_to_app:
+ lines_to_del.remove((ctx_keys, line))
+ lines_to_del.append((ctx_keys, line))
+
+ return (lines_to_add, lines_to_del)
+
+
def check_for_exit_vrf(lines_to_add, lines_to_del):
# exit-vrf is a bit tricky. If the new config is missing it but we
@@ -1248,6 +1290,7 @@ def compare_context_objects(newconf, running):
for line in newconf_ctx.lines:
lines_to_add.append((newconf_ctx_keys, line))
+ (lines_to_add, lines_to_del) = delete_bgp_bfd(lines_to_add, lines_to_del)
(lines_to_add, lines_to_del) = check_for_exit_vrf(lines_to_add, lines_to_del)
(lines_to_add, lines_to_del) = ignore_delete_re_add_lines(lines_to_add, lines_to_del)
(lines_to_add, lines_to_del) = ignore_unconfigurable_lines(lines_to_add, lines_to_del)
diff --git a/bgpd/bgp_bfd.c b/bgpd/bgp_bfd.c
index b566b0e..1bd6249 100644
--- a/bgpd/bgp_bfd.c
+++ b/bgpd/bgp_bfd.c
@@ -686,9 +686,9 @@ void bgp_bfd_peer_config_write(struct vty *vty, struct peer *peer, char *addr)
if (!CHECK_FLAG(bfd_info->flags, BFD_FLAG_PARAM_CFG)
&& (bfd_info->type == BFD_TYPE_NOT_CONFIGURED)) {
- vty_out(vty, " neighbor %s bfd", addr);
+ vty_out(vty, " neighbor %s bfd\n", addr);
if (bfd_info->profile[0])
- vty_out(vty, " profile %s", bfd_info->profile);
+ vty_out(vty, " neighbor %s bfd profile %s", addr, bfd_info->profile);
vty_out(vty, "\n");
}