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authorTejun Heo <tj@kernel.org>2015-12-07 17:38:55 -0500
committerPablo Neira Ayuso <pablo@netfilter.org>2015-12-14 20:34:55 +0100
commitc38c4597e4bf3e99860eac98211748e1ecb0e139 (patch)
treec24fde86bfd2353a1087f7c42f62a14c805931ae /include/uapi/linux
parent4ec8ff0edccffe7a77f18e2a1e2ce86f03e08b5c (diff)
netfilter: implement xt_cgroup cgroup2 path match
This patch implements xt_cgroup path match which matches cgroup2 membership of the associated socket. The match is recursive and invertible. For rationales on introducing another cgroup based match, please refer to a preceding commit "sock, cgroup: add sock->sk_cgroup". v3: Folded into xt_cgroup as a new revision interface as suggested by Pablo. v2: Included linux/limits.h from xt_cgroup2.h for PATH_MAX. Added explicit alignment to the priv field. Both suggested by Jan. Signed-off-by: Tejun Heo <tj@kernel.org> Cc: Daniel Borkmann <daniel@iogearbox.net> Cc: Daniel Wagner <daniel.wagner@bmw-carit.de> CC: Neil Horman <nhorman@tuxdriver.com> Cc: Jan Engelhardt <jengelh@inai.de> Cc: Pablo Neira Ayuso <pablo@netfilter.org> Signed-off-by: Pablo Neira Ayuso <pablo@netfilter.org>
Diffstat (limited to 'include/uapi/linux')
-rw-r--r--include/uapi/linux/netfilter/xt_cgroup.h13
1 files changed, 13 insertions, 0 deletions
diff --git a/include/uapi/linux/netfilter/xt_cgroup.h b/include/uapi/linux/netfilter/xt_cgroup.h
index 577c9e0b9406..1e4b37b93bef 100644
--- a/include/uapi/linux/netfilter/xt_cgroup.h
+++ b/include/uapi/linux/netfilter/xt_cgroup.h
@@ -2,10 +2,23 @@
#define _UAPI_XT_CGROUP_H
#include <linux/types.h>
+#include <linux/limits.h>
struct xt_cgroup_info_v0 {
__u32 id;
__u32 invert;
};
+struct xt_cgroup_info_v1 {
+ __u8 has_path;
+ __u8 has_classid;
+ __u8 invert_path;
+ __u8 invert_classid;
+ char path[PATH_MAX];
+ __u32 classid;
+
+ /* kernel internal data */
+ void *priv __attribute__((aligned(8)));
+};
+
#endif /* _UAPI_XT_CGROUP_H */