diff options
| author | Willem de Bruijn <willemb@google.com> | 2017-01-02 17:19:46 -0500 |
|---|---|---|
| committer | Pablo Neira Ayuso <pablo@netfilter.org> | 2017-01-09 17:24:55 +0100 |
| commit | ec23189049651b16dc2ffab35a4371dc1f491aca (patch) | |
| tree | abf3c783fb73b147f463fa686715a08fd2a969c1 /net/netfilter/xt_bpf.c | |
| parent | 4915f7bbc402071539ec0cb8c75aad878c982402 (diff) | |
xtables: extend matches and targets with .usersize
In matches and targets that define a kernel-only tail to their
xt_match and xt_target data structs, add a field .usersize that
specifies up to where data is to be shared with userspace.
Performed a search for comment "Used internally by the kernel" to find
relevant matches and targets. Manually inspected the structs to derive
a valid offsetof.
Signed-off-by: Willem de Bruijn <willemb@google.com>
Signed-off-by: Pablo Neira Ayuso <pablo@netfilter.org>
Diffstat (limited to 'net/netfilter/xt_bpf.c')
| -rw-r--r-- | net/netfilter/xt_bpf.c | 2 |
1 files changed, 2 insertions, 0 deletions
diff --git a/net/netfilter/xt_bpf.c b/net/netfilter/xt_bpf.c index 2dedaa23ab0a..38986a95216c 100644 --- a/net/netfilter/xt_bpf.c +++ b/net/netfilter/xt_bpf.c @@ -110,6 +110,7 @@ static struct xt_match bpf_mt_reg[] __read_mostly = { .match = bpf_mt, .destroy = bpf_mt_destroy, .matchsize = sizeof(struct xt_bpf_info), + .usersize = offsetof(struct xt_bpf_info, filter), .me = THIS_MODULE, }, { @@ -120,6 +121,7 @@ static struct xt_match bpf_mt_reg[] __read_mostly = { .match = bpf_mt_v1, .destroy = bpf_mt_destroy_v1, .matchsize = sizeof(struct xt_bpf_info_v1), + .usersize = offsetof(struct xt_bpf_info_v1, filter), .me = THIS_MODULE, }, }; |