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ospfd: fix issue with the "no segment-routing prefix A.B.C.D/M" command

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Add a missing check to bail out earlier when SR is not configured. The
same command without the "no" prefix has the same check as it prevents
unexpected things (i.e. crashes) from happening.

Fixes the following segfaults:
ospfd aborted: vtysh -c "configure terminal" -c "router ospf" -c "no segment-routing prefix 1.1.1.1/32"
ospfd aborted: vtysh -c "configure terminal" -c "router ospf" -c "no segment-routing prefix 1.1.1.1/32 index 65535 no-php-flag"

Signed-off-by: Renato Westphal <renato@opensourcerouting.org>
This commit is contained in:
Renato Westphal 2018-10-19 15:55:47 -03:00
parent 25ee05c938
commit 98c06e8618
1 changed files with 3 additions and 0 deletions
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3
ospfd/ospf_sr.c
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@ -2053,6 +2053,9 @@ DEFUN (no_sr_prefix_sid,
bool found = false;
int rc;
if (!ospf_sr_enabled(vty))
return CMD_WARNING_CONFIG_FAILED;
/* Get network prefix */
argv_find(argv, argc, "A.B.C.D/M", &idx);
rc = str2prefix(argv[idx]->arg, &p);