[PATCH bpf-next v2 2/2] selftests/bpf: Add IP_TRANSPARENT and IPV6_TRANSPARENT to setget_sockopt

Shivaji Kant <[email protected]> Sat, 1 Aug 2026 05:13:00 +0000
Newsgroups org.kernel.vger.linux-kselftest,org.kernel.vger.bpf,org.kernel.vger.linux-kernel,org.kernel.vger.netdev
Message-ID <[email protected]>
Add test coverage for IP_TRANSPARENT and IPV6_TRANSPARENT socket options
in the setget_sockopt BPF selftest to verify bpf_setsockopt() and
bpf_getsockopt() helpers.

Reviewed-by: Kuniyuki Iwashima <[email protected]>
Tested-by: Anubhav Singh <[email protected]>
Signed-off-by: Shivaji Kant <[email protected]>
---
 tools/testing/selftests/bpf/progs/bpf_tracing_net.h | 2 ++
 tools/testing/selftests/bpf/progs/setget_sockopt.c  | 2 ++
 2 files changed, 4 insertions(+)

diff --git a/tools/testing/selftests/bpf/progs/bpf_tracing_net.h b/tools/testing/selftests/bpf/progs/bpf_tracing_net.h
index c4b438854565..593b38f90417 100644
--- a/tools/testing/selftests/bpf/progs/bpf_tracing_net.h
+++ b/tools/testing/selftests/bpf/progs/bpf_tracing_net.h
@@ -31,10 +31,12 @@
 #define __SO_ACCEPTCON		(1 << 16)
 
 #define IP_TOS			1
+#define IP_TRANSPARENT		19
 
 #define SOL_IPV6		41
 #define IPV6_TCLASS		67
 #define IPV6_AUTOFLOWLABEL	70
+#define IPV6_TRANSPARENT	75
 
 #define TC_ACT_UNSPEC		(-1)
 #define TC_ACT_OK		0
diff --git a/tools/testing/selftests/bpf/progs/setget_sockopt.c b/tools/testing/selftests/bpf/progs/setget_sockopt.c
index 636a7cd8e2fa..d96e99b67aeb 100644
--- a/tools/testing/selftests/bpf/progs/setget_sockopt.c
+++ b/tools/testing/selftests/bpf/progs/setget_sockopt.c
@@ -69,12 +69,14 @@ static const struct sockopt_test sol_tcp_tests[] = {
 
 static const struct sockopt_test sol_ip_tests[] = {
 	{ .opt = IP_TOS, .new = 0xe1, .expected = 0xe1, .tcp_expected = 0xe0, },
+	{ .opt = IP_TRANSPARENT, .flip = 1, },
 	{ .opt = 0, },
 };
 
 static const struct sockopt_test sol_ipv6_tests[] = {
 	{ .opt = IPV6_TCLASS, .new = 0xe1, .expected = 0xe1, .tcp_expected = 0xe0, },
 	{ .opt = IPV6_AUTOFLOWLABEL, .flip = 1, },
+	{ .opt = IPV6_TRANSPARENT, .flip = 1, },
 	{ .opt = 0, },
 };
 
-- 
2.55.0.508.g3f0d502094-goog