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authorFlorian Westphal <fw@strlen.de>2021-11-17 14:26:21 +0100
committerFlorian Westphal <fw@strlen.de>2021-11-17 15:19:10 +0100
commit7ab453a033c9afda1d3f339263e482d6ab1f664f (patch)
treea897a690eaadc68329522e0fbf865be513072977
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/run-tests.sh: line 98: 1163 Segmentation fault (core dumped) $nft -nn -e -f $command_file > $echo_output Signed-off-by: Florian Westphal <fw@strlen.de>
-rw-r--r--src/monitor.c7
-rw-r--r--tests/monitor/testcases/set-interval.t5
2 files changed, 11 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))
interval_map_decompose(s->init);
+ else if (set_is_interval(s->flags))
+ concat_range_aggregate(s->init);
}
static int netlink_events_rule_cb(const struct nlmsghdr *nlh, int type,
diff --git a/tests/monitor/testcases/set-interval.t b/tests/monitor/testcases/set-interval.t
index 1fbcfe22..b0649cdf 100644
--- a/tests/monitor/testcases/set-interval.t
+++ b/tests/monitor/testcases/set-interval.t
@@ -23,3 +23,8 @@ J {"add": {"rule": {"family": "ip", "table": "t", "chain": "c", "handle": 0, "ex
I add rule ip t c tcp dport { 20, 30-40 }
O -
J {"add": {"rule": {"family": "ip", "table": "t", "chain": "c", "handle": 0, "expr": [{"match": {"op": "==", "left": {"payload": {"protocol": "tcp", "field": "dport"}}, "right": {"set": [20, {"range": [30, 40]}]}}}]}}}
+
+# ... and anon concat range
+I add rule ip t c ether saddr . ip saddr { 08:00:27:40:f7:09 . 192.168.56.10-192.168.56.12 }
+O -
+{"add": {"rule": {"family": "ip", "table": "t", "chain": "c", "handle": 0, "expr": [{"match": {"op": "==", "left": {"concat": [{"payload": {"protocol": "ether", "field": "saddr"}}, {"payload": {"protocol": "ip", "field": "saddr"}}]}, "right": {"set": [{"concat": ["08:00:27:40:f7:09", {"range": ["192.168.56.10", "192.168.56.12"]}]}]}}}]}}}