path: root/src/monitor.c
diff options
authorFlorian Westphal <>2021-11-17 14:26:21 +0100
committerFlorian Westphal <>2021-11-17 15:19:10 +0100
commit7ab453a033c9afda1d3f339263e482d6ab1f664f (patch)
treea897a690eaadc68329522e0fbf865be513072977 /src/monitor.c
parenta5c4a5365e141dce83343233c83f4e7facb02ceb (diff)
monitor: do not call interval_map_decompose() for concat intervals
Without this, nft monitor will either print garbage or even segfault when encountering a concat set because we pass expr->value to libgmp helpers for concat (non-value) expressions. Also, for concat case, we need to call concat_range_aggregate() helper. Add a test case for this. Without this patch, it gives: tests/monitor/ line 98: 1163 Segmentation fault (core dumped) $nft -nn -e -f $command_file > $echo_output Signed-off-by: Florian Westphal <>
Diffstat (limited to 'src/monitor.c')
1 files changed, 6 insertions, 1 deletions
diff --git a/src/monitor.c b/src/monitor.c
index 8ecb7d19..7fa92ebf 100644
--- a/src/monitor.c
+++ b/src/monitor.c
@@ -533,8 +533,13 @@ static int netlink_events_obj_cb(const struct nlmsghdr *nlh, int type,
static void rule_map_decompose_cb(struct set *s, void *data)
- if (set_is_interval(s->flags) && set_is_anonymous(s->flags))
+ if (!set_is_anonymous(s->flags))
+ return;
+ if (set_is_non_concat_range(s))
+ else if (set_is_interval(s->flags))
+ concat_range_aggregate(s->init);
static int netlink_events_rule_cb(const struct nlmsghdr *nlh, int type,