pf tests: verify that we handle address range rules correctly

There's been a problem where rules which differed only in address ranges
were considered duplicates and not added. Test for this.

Approved by:	so
Security:	FreeBSD-SA-26:09.pf
Security:	CVE-2026-4748
Sponsored by:	Rubicon Communications, LLC ("Netgate")

(cherry picked from commit ab74151e8d097b263237942c0b12277098bc9533)
(cherry picked from commit 958dbc87e9c59a2e9f83d84115ce03fb96e9b249)

1 files changed, 38 insertions, 0 deletions

diff --git a/tests/sys/netpfil/pf/pass_block.sh b/tests/sys/netpfil/pf/pass_block.sh
index 792b73b4a0a5..b91ba7f9ee68 100644
--- a/tests/sys/netpfil/pf/pass_block.sh
+++ b/tests/sys/netpfil/pf/pass_block.sh
@@ -255,6 +255,43 @@ urpf_cleanup()
 	pft_cleanup
 }
 
+atf_test_case "addr_range" "cleanup"
+addr_range_head()
+{
+	atf_set descr 'Test rulesets with multiple address ranges'
+	atf_set require.user root
+}
+
+addr_range_body()
+{
+	pft_init
+
+	epair=$(vnet_mkepair)
+	ifconfig ${epair}b 192.0.2.2/24 up
+
+	vnet_mkjail alcatraz ${epair}a
+	jexec alcatraz ifconfig ${epair}a 192.0.2.1/24 up
+
+	# Sanity check
+	atf_check -s exit:0 -o ignore ping -c 1 -t 1 192.0.2.1
+
+	jexec alcatraz pfctl -e
+	pft_set_rules alcatraz \
+	    "block" \
+	    "pass inet from any to 10.100.100.1 - 10.100.100.20" \
+	    "pass inet from any to 192.0.2.1 - 192.0.2.10"
+
+jexec alcatraz pfctl -sr -vv
+
+	atf_check -s exit:0 -o ignore ping -c 1 -t 1 192.0.2.1
+jexec alcatraz pfctl -sr -vv
+}
+
+addr_range_cleanup()
+{
+	pft_cleanup
+}
+
 atf_init_test_cases()
 {
 	atf_add_test_case "v4"
@@ -262,4 +299,5 @@ atf_init_test_cases()
 	atf_add_test_case "noalias"
 	atf_add_test_case "nested_inline"
 	atf_add_test_case "urpf"
+	atf_add_test_case "addr_range"
 }