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author | Daniel Baumann <daniel.baumann@progress-linux.org> | 2024-04-27 10:05:51 +0000 |
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committer | Daniel Baumann <daniel.baumann@progress-linux.org> | 2024-04-27 10:05:51 +0000 |
commit | 5d1646d90e1f2cceb9f0828f4b28318cd0ec7744 (patch) | |
tree | a94efe259b9009378be6d90eb30d2b019d95c194 /tools/testing/selftests/bpf/progs/bpf_iter_ipv6_route.c | |
parent | Initial commit. (diff) | |
download | linux-5d1646d90e1f2cceb9f0828f4b28318cd0ec7744.tar.xz linux-5d1646d90e1f2cceb9f0828f4b28318cd0ec7744.zip |
Adding upstream version 5.10.209.upstream/5.10.209upstream
Signed-off-by: Daniel Baumann <daniel.baumann@progress-linux.org>
Diffstat (limited to 'tools/testing/selftests/bpf/progs/bpf_iter_ipv6_route.c')
-rw-r--r-- | tools/testing/selftests/bpf/progs/bpf_iter_ipv6_route.c | 57 |
1 files changed, 57 insertions, 0 deletions
diff --git a/tools/testing/selftests/bpf/progs/bpf_iter_ipv6_route.c b/tools/testing/selftests/bpf/progs/bpf_iter_ipv6_route.c new file mode 100644 index 000000000..d58d9f164 --- /dev/null +++ b/tools/testing/selftests/bpf/progs/bpf_iter_ipv6_route.c @@ -0,0 +1,57 @@ +// SPDX-License-Identifier: GPL-2.0 +/* Copyright (c) 2020 Facebook */ +#include "bpf_iter.h" +#include "bpf_tracing_net.h" +#include <bpf/bpf_helpers.h> +#include <bpf/bpf_tracing.h> + +char _license[] SEC("license") = "GPL"; + +extern bool CONFIG_IPV6_SUBTREES __kconfig __weak; + +SEC("iter/ipv6_route") +int dump_ipv6_route(struct bpf_iter__ipv6_route *ctx) +{ + struct seq_file *seq = ctx->meta->seq; + struct fib6_info *rt = ctx->rt; + const struct net_device *dev; + struct fib6_nh *fib6_nh; + unsigned int flags; + struct nexthop *nh; + + if (rt == (void *)0) + return 0; + + fib6_nh = &rt->fib6_nh[0]; + flags = rt->fib6_flags; + + /* FIXME: nexthop_is_multipath is not handled here. */ + nh = rt->nh; + if (rt->nh) + fib6_nh = &nh->nh_info->fib6_nh; + + BPF_SEQ_PRINTF(seq, "%pi6 %02x ", &rt->fib6_dst.addr, rt->fib6_dst.plen); + + if (CONFIG_IPV6_SUBTREES) + BPF_SEQ_PRINTF(seq, "%pi6 %02x ", &rt->fib6_src.addr, + rt->fib6_src.plen); + else + BPF_SEQ_PRINTF(seq, "00000000000000000000000000000000 00 "); + + if (fib6_nh->fib_nh_gw_family) { + flags |= RTF_GATEWAY; + BPF_SEQ_PRINTF(seq, "%pi6 ", &fib6_nh->fib_nh_gw6); + } else { + BPF_SEQ_PRINTF(seq, "00000000000000000000000000000000 "); + } + + dev = fib6_nh->fib_nh_dev; + if (dev) + BPF_SEQ_PRINTF(seq, "%08x %08x %08x %08x %8s\n", rt->fib6_metric, + rt->fib6_ref.refs.counter, 0, flags, dev->name); + else + BPF_SEQ_PRINTF(seq, "%08x %08x %08x %08x\n", rt->fib6_metric, + rt->fib6_ref.refs.counter, 0, flags); + + return 0; +} |