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authorPim van Pelt <pim@ipng.nl>2023-10-06 11:26:33 +0200
committerMatthew Smith <mgsmith@netgate.com>2024-01-10 14:49:25 +0000
commit2c9b128e1b3732f9dd62699922480f9206a02b2d (patch)
treec298875846843f34828269346adaa02f160e3e15 /src/plugins/linux-cp/lcp_mpls_sync.c
parent2fa69effc844d7a27d46c0f163c0840df961eb2d (diff)
linux-cp: Fix looping netlink messages
Signal when consuming a batch of netlink messages, in order to inhibit lcp_sync from generating new netlink messages. This avoids link up/down state changess from triggering an infinite loop. Do this in the regular case of nl_route_process_msgs() and in the special case of re-synchronizing in lcp_nl_recv_dump_replies(). Type: fix Change-Id: I419d3f9aa350c119b3778b644c65165cb4cc1bef Signed-off-by: Pim van Pelt <pim@ipng.nl>
Diffstat (limited to 'src/plugins/linux-cp/lcp_mpls_sync.c')
-rw-r--r--src/plugins/linux-cp/lcp_mpls_sync.c2
1 files changed, 2 insertions, 0 deletions
diff --git a/src/plugins/linux-cp/lcp_mpls_sync.c b/src/plugins/linux-cp/lcp_mpls_sync.c
index d4b0d13b907..c08fcb4d1d9 100644
--- a/src/plugins/linux-cp/lcp_mpls_sync.c
+++ b/src/plugins/linux-cp/lcp_mpls_sync.c
@@ -77,6 +77,8 @@ lcp_mpls_sync_state_cb (struct mpls_main_t *mm, uword opaque, u32 sw_if_index,
format_lcp_itf_pair, lip);
// If syncing is enabled, sync Linux state as well.
+ // This can happen regardless of lcp_get_netlink_processing_active(),
+ // provided it does not generate Netlink messages.
if (!lcp_sync ())
return;