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From 2e7cb6c2d46d9b8b91ff4b5d6797b7544c23ba44 Mon Sep 17 00:00:00 2001
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From: Phil Sutter <psutter@redhat.com>
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Date: Mon, 13 Jan 2020 16:58:57 +0100
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Subject: [PATCH] monitor: Fix output for ranges in anonymous sets
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Bugzilla: https://bugzilla.redhat.com/show_bug.cgi?id=1774742
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Upstream Status: nftables commit ddbacd70d061e
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commit ddbacd70d061eb1b6808f501969809bfb5d03001
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Author: Phil Sutter <phil@nwl.cc>
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Date: Mon Jan 13 14:53:24 2020 +0100
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monitor: Fix output for ranges in anonymous sets
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Previous fix for named interval sets was simply wrong: Instead of
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limiting decomposing to anonymous interval sets, it effectively disabled
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it entirely.
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Since code needs to check for both interval and anonymous bits
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separately, introduce set_is_interval() helper to keep the code
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readable.
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Also extend test case to assert ranges in anonymous sets are correctly
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printed by echo or monitor modes. Without this fix, range boundaries are
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printed as individual set elements.
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Fixes: 5d57fa3e99bb9 ("monitor: Do not decompose non-anonymous sets")
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Signed-off-by: Phil Sutter <phil@nwl.cc>
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Reviewed-by: Pablo Neira Ayuso <pablo@netfilter.org>
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---
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include/rule.h | 5 +++++
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src/monitor.c | 2 +-
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tests/monitor/testcases/set-interval.t | 5 +++++
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3 files changed, 11 insertions(+), 1 deletion(-)
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diff --git a/include/rule.h b/include/rule.h
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index 0b2eba3..47eb29f 100644
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--- a/include/rule.h
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+++ b/include/rule.h
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@@ -363,6 +363,11 @@ static inline bool set_is_meter(uint32_t set_flags)
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return set_is_anonymous(set_flags) && (set_flags & NFT_SET_EVAL);
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}
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+static inline bool set_is_interval(uint32_t set_flags)
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+{
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+ return set_flags & NFT_SET_INTERVAL;
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+}
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+
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#include <statement.h>
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struct counter {
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diff --git a/src/monitor.c b/src/monitor.c
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index 0da9858..fb803cf 100644
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--- a/src/monitor.c
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+++ b/src/monitor.c
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@@ -500,7 +500,7 @@ static int netlink_events_obj_cb(const struct nlmsghdr *nlh, int type,
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static void rule_map_decompose_cb(struct set *s, void *data)
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{
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- if (s->flags & (NFT_SET_INTERVAL & NFT_SET_ANONYMOUS))
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+ if (set_is_interval(s->flags) && set_is_anonymous(s->flags))
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interval_map_decompose(s->init);
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}
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diff --git a/tests/monitor/testcases/set-interval.t b/tests/monitor/testcases/set-interval.t
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index 59930c5..1fbcfe2 100644
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--- a/tests/monitor/testcases/set-interval.t
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+++ b/tests/monitor/testcases/set-interval.t
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@@ -18,3 +18,8 @@ J {"add": {"element": {"family": "ip", "table": "t", "name": "s", "elem": {"set"
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I add rule ip t c tcp dport @s
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O -
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J {"add": {"rule": {"family": "ip", "table": "t", "chain": "c", "handle": 0, "expr": [{"match": {"op": "==", "left": {"payload": {"protocol": "tcp", "field": "dport"}}, "right": "@s"}}]}}}
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+
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+# test anonymous interval sets as well
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+I add rule ip t c tcp dport { 20, 30-40 }
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+O -
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+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]}]}}}]}}}
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--
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1.8.3.1
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