Silence k_del_rg()

This silences bogus warnings for removing entries that were never added to the MRIB. During startup, and topology changes, mrouted may fail to install routes in the MRIB due to missing reverse path. Signed-off-by: Joachim Wiberg <[email protected]>
troglobit · Oct 27, 2024 · 89e7989 · 89e7989
1 parent ceb8423
commit 89e7989
Showing 1 changed file with 1 addition and 1 deletion.
diff --git a/src/kern.c b/src/kern.c
@@ -338,7 +338,7 @@ int k_del_rg(uint32_t origin, struct gtable *g)
     mc.mfcc_mcastgrp.s_addr = g->gt_mcastgrp;
 
     /* write to kernel space */
-    if (setsockopt(igmp_socket, IPPROTO_IP, MRT_DEL_MFC, &mc, sizeof(mc)) < 0) {
+    if (setsockopt(igmp_socket, IPPROTO_IP, MRT_DEL_MFC, &mc, sizeof(mc)) < 0 && errno != ENOENT) {
 	logit(LOG_WARNING, errno, "Failed MRT_DEL_MFC(%s %s)",
 	      inet_fmt(origin, s1, sizeof(s1)), inet_fmt(g->gt_mcastgrp, s2, sizeof(s2)));