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| author | David Ahern <dsa@cumulusnetworks.com> | 2016-12-01 08:48:07 -0800 |
|---|---|---|
| committer | David S. Miller <davem@davemloft.net> | 2016-12-02 13:46:09 -0500 |
| commit | 4f2e7ae56e04cfe670cf39152a8d015984c90351 (patch) | |
| tree | c0d08eb983e657c56dd9249e64d44929d14014f0 /samples | |
| parent | aa4c1037a30f4e88f444e83d42c2befbe0d5caf5 (diff) | |
| download | linux-4f2e7ae56e04cfe670cf39152a8d015984c90351.tar.gz linux-4f2e7ae56e04cfe670cf39152a8d015984c90351.tar.bz2 linux-4f2e7ae56e04cfe670cf39152a8d015984c90351.zip | |
samples/bpf: Update bpf loader for cgroup section names
Add support for section names starting with cgroup/skb and cgroup/sock.
Signed-off-by: David Ahern <dsa@cumulusnetworks.com>
Acked-by: Alexei Starovoitov <ast@kernel.org>
Signed-off-by: David S. Miller <davem@davemloft.net>
Diffstat (limited to 'samples')
| -rw-r--r-- | samples/bpf/bpf_load.c | 14 | ||||
| -rw-r--r-- | samples/bpf/bpf_load.h | 1 |
2 files changed, 12 insertions, 3 deletions
diff --git a/samples/bpf/bpf_load.c b/samples/bpf/bpf_load.c index 62f54d6eb8bf..49b45ccbe153 100644 --- a/samples/bpf/bpf_load.c +++ b/samples/bpf/bpf_load.c @@ -52,6 +52,8 @@ static int load_and_attach(const char *event, struct bpf_insn *prog, int size) bool is_tracepoint = strncmp(event, "tracepoint/", 11) == 0; bool is_xdp = strncmp(event, "xdp", 3) == 0; bool is_perf_event = strncmp(event, "perf_event", 10) == 0; + bool is_cgroup_skb = strncmp(event, "cgroup/skb", 10) == 0; + bool is_cgroup_sk = strncmp(event, "cgroup/sock", 11) == 0; enum bpf_prog_type prog_type; char buf[256]; int fd, efd, err, id; @@ -72,6 +74,10 @@ static int load_and_attach(const char *event, struct bpf_insn *prog, int size) prog_type = BPF_PROG_TYPE_XDP; } else if (is_perf_event) { prog_type = BPF_PROG_TYPE_PERF_EVENT; + } else if (is_cgroup_skb) { + prog_type = BPF_PROG_TYPE_CGROUP_SKB; + } else if (is_cgroup_sk) { + prog_type = BPF_PROG_TYPE_CGROUP_SOCK; } else { printf("Unknown event '%s'\n", event); return -1; @@ -85,7 +91,7 @@ static int load_and_attach(const char *event, struct bpf_insn *prog, int size) prog_fd[prog_cnt++] = fd; - if (is_xdp || is_perf_event) + if (is_xdp || is_perf_event || is_cgroup_skb || is_cgroup_sk) return 0; if (is_socket) { @@ -334,7 +340,8 @@ int load_bpf_file(char *path) memcmp(shname_prog, "tracepoint/", 11) == 0 || memcmp(shname_prog, "xdp", 3) == 0 || memcmp(shname_prog, "perf_event", 10) == 0 || - memcmp(shname_prog, "socket", 6) == 0) + memcmp(shname_prog, "socket", 6) == 0 || + memcmp(shname_prog, "cgroup/", 7) == 0) load_and_attach(shname_prog, insns, data_prog->d_size); } } @@ -353,7 +360,8 @@ int load_bpf_file(char *path) memcmp(shname, "tracepoint/", 11) == 0 || memcmp(shname, "xdp", 3) == 0 || memcmp(shname, "perf_event", 10) == 0 || - memcmp(shname, "socket", 6) == 0) + memcmp(shname, "socket", 6) == 0 || + memcmp(shname, "cgroup/", 7) == 0) load_and_attach(shname, data->d_buf, data->d_size); } diff --git a/samples/bpf/bpf_load.h b/samples/bpf/bpf_load.h index dfa57fe65c8e..4adeeef53ad6 100644 --- a/samples/bpf/bpf_load.h +++ b/samples/bpf/bpf_load.h @@ -7,6 +7,7 @@ extern int map_fd[MAX_MAPS]; extern int prog_fd[MAX_PROGS]; extern int event_fd[MAX_PROGS]; +extern int prog_cnt; /* parses elf file compiled by llvm .c->.o * . parses 'maps' section and creates maps via BPF syscall |