ace15f91e5
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>
69 lines
1.1 KiB
C
69 lines
1.1 KiB
C
// SPDX-License-Identifier: GPL-2.0
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/* Copyright (c) 2023 Isovalent */
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#include <stdbool.h>
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#include <linux/bpf.h>
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#include <linux/if_ether.h>
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#include <bpf/bpf_endian.h>
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#include <bpf/bpf_helpers.h>
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char LICENSE[] SEC("license") = "GPL";
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bool seen_tc1;
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bool seen_tc2;
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bool seen_tc3;
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bool seen_tc4;
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bool seen_tc5;
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bool seen_tc6;
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bool seen_eth;
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SEC("tc/ingress")
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int tc1(struct __sk_buff *skb)
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{
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struct ethhdr eth = {};
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if (skb->protocol != __bpf_constant_htons(ETH_P_IP))
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goto out;
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if (bpf_skb_load_bytes(skb, 0, ð, sizeof(eth)))
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goto out;
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seen_eth = eth.h_proto == bpf_htons(ETH_P_IP);
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out:
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seen_tc1 = true;
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return TCX_NEXT;
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}
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SEC("tc/egress")
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int tc2(struct __sk_buff *skb)
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{
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seen_tc2 = true;
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return TCX_NEXT;
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}
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SEC("tc/egress")
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int tc3(struct __sk_buff *skb)
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{
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seen_tc3 = true;
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return TCX_NEXT;
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}
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SEC("tc/egress")
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int tc4(struct __sk_buff *skb)
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{
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seen_tc4 = true;
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return TCX_NEXT;
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}
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SEC("tc/egress")
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int tc5(struct __sk_buff *skb)
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{
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seen_tc5 = true;
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return TCX_PASS;
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}
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SEC("tc/egress")
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int tc6(struct __sk_buff *skb)
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{
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seen_tc6 = true;
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return TCX_PASS;
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}
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