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af_unix: preserve const qualifier in unix_sk()

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We can change unix_sk() to propagate its argument const qualifier,
thanks to container_of_const().

We need to change dump_common_audit_data() 'struct unix_sock *u'
local var to get a const attribute.

Signed-off-by: Eric Dumazet <edumazet@google.com>
Reviewed-by: Simon Horman <simon.horman@corigine.com>
Signed-off-by: David S. Miller <davem@davemloft.net>
This commit is contained in:
Eric Dumazet
2023-03-17 15:55:35 +00:00
committed by David S. Miller
parent ae6084b739
commit b064ba9c3c
2 changed files with 2 additions and 5 deletions
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5
include/net/af_unix.h
View File

@@ -74,10 +74,7 @@ struct unix_sock {
#endif #endif
}; };
static inline struct unix_sock *unix_sk(const struct sock *sk) #define unix_sk(ptr) container_of_const(ptr, struct unix_sock, sk)
{
return (struct unix_sock *)sk;
}
#define peer_wait peer_wq.wait #define peer_wait peer_wq.wait

2
security/lsm_audit.c
View File

@@ -310,7 +310,7 @@ static void dump_common_audit_data(struct audit_buffer *ab,
case LSM_AUDIT_DATA_NET: case LSM_AUDIT_DATA_NET:
if (a->u.net->sk) { if (a->u.net->sk) {
const struct sock *sk = a->u.net->sk; const struct sock *sk = a->u.net->sk;
struct unix_sock *u; const struct unix_sock *u;
struct unix_address *addr; struct unix_address *addr;
int len = 0; int len = 0;
char *p = NULL; char *p = NULL;