Files
rockchip-kernel/include/uapi/linux
Alexei Starovoitov 99c55f7d47 bpf: introduce BPF syscall and maps
BPF syscall is a multiplexor for a range of different operations on eBPF.
This patch introduces syscall with single command to create a map.
Next patch adds commands to access maps.

'maps' is a generic storage of different types for sharing data between kernel
and userspace.

Userspace example:
/* this syscall wrapper creates a map with given type and attributes
 * and returns map_fd on success.
 * use close(map_fd) to delete the map
 */
int bpf_create_map(enum bpf_map_type map_type, int key_size,
                   int value_size, int max_entries)
{
    union bpf_attr attr = {
        .map_type = map_type,
        .key_size = key_size,
        .value_size = value_size,
        .max_entries = max_entries
    };

    return bpf(BPF_MAP_CREATE, &attr, sizeof(attr));
}

'union bpf_attr' is backwards compatible with future extensions.

More details in Documentation/networking/filter.txt and in manpage

Signed-off-by: Alexei Starovoitov <ast@plumgrid.com>
Signed-off-by: David S. Miller <davem@davemloft.net>
2014-09-26 15:05:14 -04:00
..
2014-05-08 12:43:03 -04:00
2014-07-10 11:06:00 +01:00
2013-04-26 16:08:16 +10:00
2014-09-26 15:05:14 -04:00
2014-07-01 10:48:05 -06:00
2014-03-20 14:55:18 +01:00
2013-11-09 18:20:22 -05:00
2012-10-16 18:49:15 -07:00
2013-03-27 14:37:47 +00:00
2014-08-08 15:57:31 -07:00
2014-04-22 21:27:57 -04:00
2014-09-19 17:15:31 -04:00
2014-04-01 17:08:43 +02:00
2014-05-14 10:04:34 +01:00
2013-12-11 12:57:55 -08:00
2013-08-13 15:10:22 -07:00
2013-08-21 12:21:45 -07:00
2014-08-08 15:57:31 -07:00
2013-11-27 11:03:38 -08:00
2014-03-04 13:51:06 -05:00
2013-07-09 10:33:25 -07:00
2013-02-27 19:10:22 -08:00
2013-04-19 14:57:57 -04:00
2014-06-13 10:53:49 -04:00
2012-11-16 10:15:35 -08:00
2014-01-06 15:13:01 -05:00
2014-03-21 14:21:13 -04:00
2014-04-25 10:08:48 -07:00
2013-03-22 16:19:59 -07:00
2014-04-26 12:13:24 -04:00
2013-05-02 13:40:15 +03:00
2013-12-11 09:25:20 -02:00
2014-03-07 08:12:37 +01:00