diff options
| author | Daniel Borkmann <daniel@iogearbox.net> | 2023-10-24 23:49:04 +0200 |
|---|---|---|
| committer | Martin KaFai Lau <martin.lau@kernel.org> | 2023-10-24 16:07:43 -0700 |
| commit | ace15f91e569172dac71ae0aeb3a2e76d1ce1b17 (patch) | |
| tree | 33ca776f10feda7e38956dc26edf74fd1bbc88da /tools/testing/selftests/bpf/progs/test_tc_link.c | |
| parent | 51f1892b5289f0c09745d3bedb36493555d6d90c (diff) | |
selftests/bpf: Add selftests for netkit
Add a bigger batch of test coverage to assert correct operation of
netkit devices and their BPF program management:
# ./test_progs -t tc_netkit
[...]
[ 1.166267] bpf_testmod: loading out-of-tree module taints kernel.
[ 1.166831] bpf_testmod: module verification failed: signature and/or required key missing - tainting kernel
[ 1.270957] tsc: Refined TSC clocksource calibration: 3407.988 MHz
[ 1.272579] clocksource: tsc: mask: 0xffffffffffffffff max_cycles: 0x311fc932722, max_idle_ns: 440795381586 ns
[ 1.275336] clocksource: Switched to clocksource tsc
#257 tc_netkit_basic:OK
#258 tc_netkit_device:OK
#259 tc_netkit_multi_links:OK
#260 tc_netkit_multi_opts:OK
#261 tc_netkit_neigh_links:OK
Summary: 5/0 PASSED, 0 SKIPPED, 0 FAILED
[...]
Signed-off-by: Daniel Borkmann <daniel@iogearbox.net>
Acked-by: Martin KaFai Lau <martin.lau@kernel.org>
Link: https://lore.kernel.org/r/20231024214904.29825-8-daniel@iogearbox.net
Signed-off-by: Martin KaFai Lau <martin.lau@kernel.org>
Diffstat (limited to 'tools/testing/selftests/bpf/progs/test_tc_link.c')
| -rw-r--r-- | tools/testing/selftests/bpf/progs/test_tc_link.c | 13 |
1 files changed, 13 insertions, 0 deletions
diff --git a/tools/testing/selftests/bpf/progs/test_tc_link.c b/tools/testing/selftests/bpf/progs/test_tc_link.c index 30e7124c49a1..992400acb957 100644 --- a/tools/testing/selftests/bpf/progs/test_tc_link.c +++ b/tools/testing/selftests/bpf/progs/test_tc_link.c @@ -1,7 +1,11 @@ // SPDX-License-Identifier: GPL-2.0 /* Copyright (c) 2023 Isovalent */ #include <stdbool.h> + #include <linux/bpf.h> +#include <linux/if_ether.h> + +#include <bpf/bpf_endian.h> #include <bpf/bpf_helpers.h> char LICENSE[] SEC("license") = "GPL"; @@ -12,10 +16,19 @@ bool seen_tc3; bool seen_tc4; bool seen_tc5; bool seen_tc6; +bool seen_eth; SEC("tc/ingress") int tc1(struct __sk_buff *skb) { + struct ethhdr eth = {}; + + if (skb->protocol != __bpf_constant_htons(ETH_P_IP)) + goto out; + if (bpf_skb_load_bytes(skb, 0, ð, sizeof(eth))) + goto out; + seen_eth = eth.h_proto == bpf_htons(ETH_P_IP); +out: seen_tc1 = true; return TCX_NEXT; } |