Messages in this thread Patch in this message | | | From | Alexei Starovoitov <> | Subject | [PATCH bpf-next 3/6] tools/bpf: sync uapi/bpf.h | Date | Wed, 3 Oct 2018 19:57:47 -0700 |
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sync uapi/bpf.h from kernel into tools
Signed-off-by: Alexei Starovoitov <ast@kernel.org> --- tools/include/uapi/linux/bpf.h | 28 +++++++++++++++++++++++++++- 1 file changed, 27 insertions(+), 1 deletion(-)
diff --git a/tools/include/uapi/linux/bpf.h b/tools/include/uapi/linux/bpf.h index f9187b41dff6..c0df8dd99edc 100644 --- a/tools/include/uapi/linux/bpf.h +++ b/tools/include/uapi/linux/bpf.h @@ -154,6 +154,7 @@ enum bpf_prog_type { BPF_PROG_TYPE_LIRC_MODE2, BPF_PROG_TYPE_SK_REUSEPORT, BPF_PROG_TYPE_FLOW_DISSECTOR, + BPF_PROG_TYPE_FILE_FILTER, }; enum bpf_attach_type { @@ -175,6 +176,7 @@ enum bpf_attach_type { BPF_CGROUP_UDP6_SENDMSG, BPF_LIRC_MODE2, BPF_FLOW_DISSECTOR, + BPF_CGROUP_FILE_OPEN, __MAX_BPF_ATTACH_TYPE }; @@ -2215,6 +2217,18 @@ union bpf_attr { * pointer that was returned from bpf_sk_lookup_xxx\ (). * Return * 0 on success, or a negative error in case of failure. + * + * int bpf_get_file_path(struct bpf_file_info *file, char *buf, u32 size_of_buf) + * Description + * Reconstruct the full path of *file* and store it into *buf* of + * *size_of_buf*. The *size_of_buf* must be strictly positive. + * On success, the helper makes sure that the *buf* is NUL-terminated. + * On failure, it is filled with string "(error)". + * This helper should only be used for debugging. + * 'char *path' should never be used for permission checks. + * Return + * 0 on success, or a negative error in case of failure. + * */ #define __BPF_FUNC_MAPPER(FN) \ FN(unspec), \ @@ -2303,7 +2317,8 @@ union bpf_attr { FN(skb_ancestor_cgroup_id), \ FN(sk_lookup_tcp), \ FN(sk_lookup_udp), \ - FN(sk_release), + FN(sk_release), \ + FN(get_file_path), /* integer value in 'imm' field of BPF_CALL instruction selects which helper * function eBPF program intends to call @@ -2896,4 +2911,15 @@ struct bpf_flow_keys { }; }; +struct bpf_file_info { + __u64 inode; + __u32 dev_major; + __u32 dev_minor; + __u32 fs_magic; + __u32 mnt_id; + __u32 nlink; + __u32 mode; /* file mode S_ISDIR, S_ISLNK, 0755, etc */ + __u32 flags; /* open flags O_RDWR, O_CREAT, etc */ +}; + #endif /* _UAPI__LINUX_BPF_H__ */ -- 2.17.1
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