diff options
| author | Willem de Bruijn <willemb@google.com> | 2016-12-06 16:25:02 -0500 |
|---|---|---|
| committer | Pablo Neira Ayuso <pablo@netfilter.org> | 2016-12-07 13:32:35 +0100 |
| commit | 2c16d60332643e90d4fa244f4a706c454b8c7569 (patch) | |
| tree | dde08e481c1bf3e50c501b7aca2fd88eefdfa6d7 /include | |
| parent | 5bad87348c70bb4d36e876523aade31e9dedd2fc (diff) | |
netfilter: xt_bpf: support ebpf
Add support for attaching an eBPF object by file descriptor.
The iptables binary can be called with a path to an elf object or a
pinned bpf object. Also pass the mode and path to the kernel to be
able to return it later for iptables dump and save.
Signed-off-by: Willem de Bruijn <willemb@google.com>
Signed-off-by: Pablo Neira Ayuso <pablo@netfilter.org>
Diffstat (limited to 'include')
| -rw-r--r-- | include/uapi/linux/netfilter/xt_bpf.h | 21 |
1 files changed, 21 insertions, 0 deletions
diff --git a/include/uapi/linux/netfilter/xt_bpf.h b/include/uapi/linux/netfilter/xt_bpf.h index 1fad2c27ac32..b97725af2ac0 100644 --- a/include/uapi/linux/netfilter/xt_bpf.h +++ b/include/uapi/linux/netfilter/xt_bpf.h @@ -2,9 +2,11 @@ #define _XT_BPF_H #include <linux/filter.h> +#include <linux/limits.h> #include <linux/types.h> #define XT_BPF_MAX_NUM_INSTR 64 +#define XT_BPF_PATH_MAX (XT_BPF_MAX_NUM_INSTR * sizeof(struct sock_filter)) struct bpf_prog; @@ -16,4 +18,23 @@ struct xt_bpf_info { struct bpf_prog *filter __attribute__((aligned(8))); }; +enum xt_bpf_modes { + XT_BPF_MODE_BYTECODE, + XT_BPF_MODE_FD_PINNED, + XT_BPF_MODE_FD_ELF, +}; + +struct xt_bpf_info_v1 { + __u16 mode; + __u16 bpf_program_num_elem; + __s32 fd; + union { + struct sock_filter bpf_program[XT_BPF_MAX_NUM_INSTR]; + char path[XT_BPF_PATH_MAX]; + }; + + /* only used in the kernel */ + struct bpf_prog *filter __attribute__((aligned(8))); +}; + #endif /*_XT_BPF_H */ |