From: Ido Schimmel <idosch@nvidia.com>
To: netdev@vger.kernel.org, bpf@vger.kernel.org
Cc: davem@davemloft.net, kuba@kernel.org, pabeni@redhat.com,
edumazet@google.com, dsahern@gmail.com, petrm@nvidia.com,
horms@kernel.org, ast@kernel.org, daniel@iogearbox.net,
andrii@kernel.org, martin.lau@linux.dev,
john.fastabend@gmail.com, sdf@fomichev.me,
Ido Schimmel <idosch@nvidia.com>
Subject: [RFC PATCH bpf-next 1/9] selftests/bpf: fib_lookup: Force specific interface indexes
Date: Thu, 26 Feb 2026 09:59:55 +0200 [thread overview]
Message-ID: <20260226080003.524935-2-idosch@nvidia.com> (raw)
In-Reply-To: <20260226080003.524935-1-idosch@nvidia.com>
Subsequent patches will add tests for output routes (i.e.,
BPF_FIB_LOOKUP_OUTPUT). In these tests, the bpf_fib_lookup() helper will
be called with different interface indexes to make sure it is resolving
the correct route. Make it easier to add such tests by predetermining
the interface indexes.
Reviewed-by: Petr Machata <petrm@nvidia.com>
Signed-off-by: Ido Schimmel <idosch@nvidia.com>
---
tools/testing/selftests/bpf/prog_tests/fib_lookup.c | 10 +++++-----
1 file changed, 5 insertions(+), 5 deletions(-)
diff --git a/tools/testing/selftests/bpf/prog_tests/fib_lookup.c b/tools/testing/selftests/bpf/prog_tests/fib_lookup.c
index bd7658958004..77f65ff7784a 100644
--- a/tools/testing/selftests/bpf/prog_tests/fib_lookup.c
+++ b/tools/testing/selftests/bpf/prog_tests/fib_lookup.c
@@ -41,6 +41,8 @@
#define DMAC_INIT { 0x11, 0x11, 0x11, 0x11, 0x11, 0x11, }
#define DMAC2 "01:01:01:01:01:01"
#define DMAC_INIT2 { 0x01, 0x01, 0x01, 0x01, 0x01, 0x01, }
+#define IFINDEX_VETH1 10010
+#define IFINDEX_VETH2 10020
struct fib_lookup_test {
const char *desc;
@@ -148,7 +150,8 @@ static int setup_netns(void)
{
int err;
- SYS(fail, "ip link add veth1 type veth peer name veth2");
+ SYS(fail, "ip link add veth1 index %d type veth peer name veth2 index %d",
+ IFINDEX_VETH1, IFINDEX_VETH2);
SYS(fail, "ip link set dev veth1 up");
SYS(fail, "ip link set dev veth2 up");
@@ -324,10 +327,7 @@ void test_fib_lookup(void)
if (setup_netns())
goto fail;
- skb.ifindex = if_nametoindex("veth1");
- if (!ASSERT_NEQ(skb.ifindex, 0, "if_nametoindex(veth1)"))
- goto fail;
-
+ skb.ifindex = IFINDEX_VETH1;
fib_params = &skel->bss->fib_params;
for (i = 0; i < ARRAY_SIZE(tests); i++) {
--
2.53.0
next prev parent reply other threads:[~2026-02-26 8:00 UTC|newest]
Thread overview: 14+ messages / expand[flat|nested] mbox.gz Atom feed top
2026-02-26 7:59 [RFC PATCH bpf-next 0/9] bpf: fib_lookup: IPv6 output routes enhancements Ido Schimmel
2026-02-26 7:59 ` Ido Schimmel [this message]
2026-02-26 7:59 ` [RFC PATCH bpf-next 2/9] selftests/bpf: fib_lookup: Enable forwarding on second net device Ido Schimmel
2026-02-26 7:59 ` [RFC PATCH bpf-next 3/9] selftests/bpf: fib_lookup: Allow parametrizing ifindex Ido Schimmel
2026-02-26 7:59 ` [RFC PATCH bpf-next 4/9] selftests/bpf: fib_lookup: Allow testing for expected ifindex Ido Schimmel
2026-02-26 7:59 ` [RFC PATCH bpf-next 5/9] selftests/bpf: fib_lookup: Add IPv4 output route tests Ido Schimmel
2026-02-26 8:00 ` [RFC PATCH bpf-next 6/9] bpf: fib_lookup: Honor oif in IPv6 output route lookups Ido Schimmel
2026-02-26 8:41 ` bot+bpf-ci
2026-02-26 15:31 ` David Ahern
2026-02-26 8:00 ` [RFC PATCH bpf-next 7/9] selftests/bpf: fib_lookup: Add IPv6 output route tests Ido Schimmel
2026-02-26 8:00 ` [RFC PATCH bpf-next 8/9] bpf: fib_lookup: Allow output lookups for IPv6 link-local addresses Ido Schimmel
2026-02-26 15:36 ` David Ahern
2026-02-26 8:00 ` [RFC PATCH bpf-next 9/9] selftests/bpf: fib_lookup: Add IPv6 link-local tests Ido Schimmel
2026-02-26 17:14 ` [RFC PATCH bpf-next 0/9] bpf: fib_lookup: IPv6 output routes enhancements Alexei Starovoitov
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