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