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sock_diag: allow to dump bpf filters

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This patch allows to dump BPF filters attached to a socket with
SO_ATTACH_FILTER.
Note that we check CAP_SYS_ADMIN before allowing to dump this info.

For now, only AF_PACKET sockets use this feature.

Signed-off-by: Nicolas Dichtel <nicolas.dichtel@6wind.com>
Signed-off-by: David S. Miller <davem@davemloft.net>
This commit is contained in:
Nicolas Dichtel
2013-04-25 06:53:54 +00:00
committed by David S. Miller
parent 76d0eeb1a1
commit e8d9612c18
4 changed files with 42 additions and 0 deletions
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3
include/linux/sock_diag.h
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@@ -1,6 +1,7 @@
#ifndef __SOCK_DIAG_H__
#define __SOCK_DIAG_H__
#include <linux/user_namespace.h>
#include <uapi/linux/sock_diag.h>
struct sk_buff;
@@ -22,5 +23,7 @@ int sock_diag_check_cookie(void *sk, __u32 *cookie);
void sock_diag_save_cookie(void *sk, __u32 *cookie);
int sock_diag_put_meminfo(struct sock *sk, struct sk_buff *skb, int attr);
int sock_diag_put_filterinfo(struct user_namespace *user_ns, struct sock *sk,
struct sk_buff *skb, int attrtype);
#endif