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netlink: BUG() if we don't have parent information

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This would indicate that we hang a TC object to the tree root.

Signed-off-by: Thomas Graf <tgraf@suug.ch>
This commit is contained in:
Thomas Graf 2015-12-16 15:38:39 +01:00
parent f9c714fa15
commit a0eea59519
1 changed files with 5 additions and 2 deletions
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7
src/in_netlink.c
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@ -545,11 +545,14 @@ static struct element *handle_tc_obj(struct rtnl_tc *tc, const char *prefix,
snprintf(name, sizeof(name), "%s %s (%s)", snprintf(name, sizeof(name), "%s %s (%s)",
prefix, buf, rtnl_tc_get_kind(tc)); prefix, buf, rtnl_tc_get_kind(tc));
if (!(e = element_lookup(grp, name, id, rdata ? rdata->parent : NULL, ELEMENT_CREAT))) if (!rdata || !rdata->parent)
BUG();
if (!(e = element_lookup(grp, name, id, rdata->parent, ELEMENT_CREAT)))
return NULL; return NULL;
if (e->e_flags & ELEMENT_FLAG_CREATED) { if (e->e_flags & ELEMENT_FLAG_CREATED) {
e->e_level = rdata ? rdata->level : 0; e->e_level = rdata->level;
if (element_set_key_attr(e, "tc_bytes", "tc_packets") || if (element_set_key_attr(e, "tc_bytes", "tc_packets") ||
element_set_usage_attr(e, "tc_bytes")) element_set_usage_attr(e, "tc_bytes"))