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| author | Andrey Ignatov <rdna@fb.com> | 2018-03-30 15:08:01 -0700 |
|---|---|---|
| committer | Daniel Borkmann <daniel@iogearbox.net> | 2018-03-31 02:15:05 +0200 |
| commit | d7be143b67c2cf99bf93279217b1cf93a1e8a6b1 (patch) | |
| tree | 6bc585808af68691fcd4f7830f3fee797f3e8764 /tools/lib/bpf/bpf.h | |
| parent | 5e43f899b03a3492ce5fc44e8900becb04dae9c0 (diff) | |
| download | linux-d7be143b67c2cf99bf93279217b1cf93a1e8a6b1.tar.gz linux-d7be143b67c2cf99bf93279217b1cf93a1e8a6b1.tar.bz2 linux-d7be143b67c2cf99bf93279217b1cf93a1e8a6b1.zip | |
libbpf: Support expected_attach_type at prog load
Support setting `expected_attach_type` at prog load time in both
`bpf/bpf.h` and `bpf/libbpf.h`.
Since both headers already have API to load programs, new functions are
added not to break backward compatibility for existing ones:
* `bpf_load_program_xattr()` is added to `bpf/bpf.h`;
* `bpf_prog_load_xattr()` is added to `bpf/libbpf.h`.
Both new functions accept structures, `struct bpf_load_program_attr` and
`struct bpf_prog_load_attr` correspondingly, where new fields can be
added in the future w/o changing the API.
Standard `_xattr` suffix is used to name the new API functions.
Since `bpf_load_program_name()` is not used as heavily as
`bpf_load_program()`, it was removed in favor of more generic
`bpf_load_program_xattr()`.
Signed-off-by: Andrey Ignatov <rdna@fb.com>
Signed-off-by: Alexei Starovoitov <ast@kernel.org>
Signed-off-by: Daniel Borkmann <daniel@iogearbox.net>
Diffstat (limited to 'tools/lib/bpf/bpf.h')
| -rw-r--r-- | tools/lib/bpf/bpf.h | 17 |
1 files changed, 12 insertions, 5 deletions
diff --git a/tools/lib/bpf/bpf.h b/tools/lib/bpf/bpf.h index ee59342c6f42..39f6a0d64a3b 100644 --- a/tools/lib/bpf/bpf.h +++ b/tools/lib/bpf/bpf.h @@ -41,13 +41,20 @@ int bpf_create_map_in_map(enum bpf_map_type map_type, const char *name, int key_size, int inner_map_fd, int max_entries, __u32 map_flags); +struct bpf_load_program_attr { + enum bpf_prog_type prog_type; + enum bpf_attach_type expected_attach_type; + const char *name; + const struct bpf_insn *insns; + size_t insns_cnt; + const char *license; + __u32 kern_version; +}; + /* Recommend log buffer size */ #define BPF_LOG_BUF_SIZE (256 * 1024) -int bpf_load_program_name(enum bpf_prog_type type, const char *name, - const struct bpf_insn *insns, - size_t insns_cnt, const char *license, - __u32 kern_version, char *log_buf, - size_t log_buf_sz); +int bpf_load_program_xattr(const struct bpf_load_program_attr *load_attr, + char *log_buf, size_t log_buf_sz); int bpf_load_program(enum bpf_prog_type type, const struct bpf_insn *insns, size_t insns_cnt, const char *license, __u32 kern_version, char *log_buf, |