git: f138688ea41a - releng/15.0 - pf: fix 'no rdr'

The branch releng/15.0 has been updated by cperciva:

URL: https://cgit.FreeBSD.org/src/commit/?id=f138688ea41a1a2ecd0d08d02575542f31f1ceb5

commit f138688ea41a1a2ecd0d08d02575542f31f1ceb5
Author:     Kristof Provost <kp@FreeBSD.org>
AuthorDate: 2025-10-18 15:47:47 +0000
Commit:     Colin Percival <cperciva@FreeBSD.org>
CommitDate: 2025-10-22 20:12:34 +0000

    pf: fix 'no rdr'
    
    Ensure we always have a non-NULL rule pointer (ctx.rm).
    It might have gotten set to NULL by pf_get_translation().
    
    While here also restore the previous rdr behaviour be re-adding the incorrectly
    removed 'break' in pf_match_translation_rule.
    
    Approved by:    re (cperciva)
    PR:             290177
    MFC after:      3 days
    Sponsored by:   Rubicon Communications, LLC ("Netgate")
    Differential Revision:  https://reviews.freebsd.org/D53191
    
    (cherry picked from commit cb36bfee25b71d1223b8fb1237fcf823d514b50e)
    (cherry picked from commit 536b07512c4b931b9d0d3d609c3ac925f55e3ec9)
---
 sys/netpfil/pf/pf.c         |  1 +
 sys/netpfil/pf/pf_lb.c      |  1 +
 tests/sys/netpfil/pf/rdr.sh | 51 +++++++++++++++++++++++++++++++++++++++++++++
 3 files changed, 53 insertions(+)

diff --git a/sys/netpfil/pf/pf.c b/sys/netpfil/pf/pf.c
index 8d3d72148815..af0629397ea0 100644
--- a/sys/netpfil/pf/pf.c
+++ b/sys/netpfil/pf/pf.c
@@ -5939,6 +5939,7 @@ pf_test_rule(struct pf_krule **rm, struct pf_kstate **sm,
 		ctx.nat_pool = &(ctx.nr->rdr);
 	}
 
+	*ctx.rm = &V_pf_default_rule;
 	if (ctx.nr && ctx.nr->natpass) {
 		r = ctx.nr;
 		ruleset = *ctx.rsm;
diff --git a/sys/netpfil/pf/pf_lb.c b/sys/netpfil/pf/pf_lb.c
index b8b5157c9b15..29d7a32e0bdc 100644
--- a/sys/netpfil/pf/pf_lb.c
+++ b/sys/netpfil/pf/pf_lb.c
@@ -216,6 +216,7 @@ pf_match_translation_rule(int rs_num, struct pf_test_ctx *ctx, struct pf_krulese
 				 */
 				ctx->arsm = ctx->aruleset;
 			}
+			break;
 		} else {
 			ctx->a = r;			/* remember anchor */
 			ctx->aruleset = ruleset;	/* and its ruleset */
diff --git a/tests/sys/netpfil/pf/rdr.sh b/tests/sys/netpfil/pf/rdr.sh
index 24b95b2047f4..b0f0e6d13d0f 100644
--- a/tests/sys/netpfil/pf/rdr.sh
+++ b/tests/sys/netpfil/pf/rdr.sh
@@ -338,6 +338,56 @@ natpass_cleanup()
 	pft_cleanup
 }
 
+atf_test_case "pr290177" "cleanup"
+pr290177_head()
+{
+	atf_set descr 'Test PR290177'
+	atf_set require.user root
+}
+
+pr290177_body()
+{
+	pft_init
+
+	epair=$(vnet_mkepair)
+
+	ifconfig ${epair}a 192.0.2.2/24 up
+	ifconfig ${epair}a inet alias 192.0.2.3/24 up
+
+	vnet_mkjail alcatraz ${epair}b
+	jexec alcatraz ifconfig ${epair}b 192.0.2.1/24 up
+	jexec alcatraz ifconfig lo0 127.0.0.1/8 up
+
+	# Sanity check
+	atf_check -s exit:0 -o ignore \
+	    ping -c 1 192.0.2.1
+
+	jexec alcatraz pfctl -e
+	pft_set_rules alcatraz \
+	    "table <white> { 192.0.2.2 }" \
+	    "no rdr inet proto tcp from <white> to any port 25" \
+	    "rdr pass inet proto tcp from any to any port 25 -> 127.0.0.1 port 2500"
+
+	echo foo | jexec alcatraz nc -N -l 2500 &
+	sleep 1
+
+	reply=$(nc -w 3 -s 192.0.2.2 192.0.2.1 25)
+	if [ "${reply}" == "foo" ]
+	then
+		atf_fail "no rdr rule failed"
+	fi
+	reply=$(nc -w 3 -s 192.0.2.3 192.0.2.1 25)
+	if [ "${reply}" != "foo" ]
+	then
+		atf_fail "rdr rule failed"
+	fi
+}
+
+pr290177_cleanup()
+{
+	pft_cleanup
+}
+
 atf_init_test_cases()
 {
 	atf_add_test_case "natpass"
@@ -345,4 +395,5 @@ atf_init_test_cases()
 	atf_add_test_case "tcp_v6_pass"
 	atf_add_test_case "srcport_compat"
 	atf_add_test_case "srcport_pass"
+	atf_add_test_case "pr290177"
 }