diff options
Diffstat (limited to 'net/unix/af_unix.c')
| -rw-r--r-- | net/unix/af_unix.c | 30 |
1 files changed, 28 insertions, 2 deletions
diff --git a/net/unix/af_unix.c b/net/unix/af_unix.c index 65ebccc0a698..a05c34260e70 100644 --- a/net/unix/af_unix.c +++ b/net/unix/af_unix.c @@ -118,14 +118,40 @@ int sysctl_unix_max_dgram_qlen __read_mostly = 10; -struct hlist_head unix_socket_table[UNIX_HASH_SIZE + 1]; -DEFINE_SPINLOCK(unix_table_lock); +static struct hlist_head unix_socket_table[UNIX_HASH_SIZE + 1]; +static DEFINE_SPINLOCK(unix_table_lock); static atomic_t unix_nr_socks = ATOMIC_INIT(0); #define unix_sockets_unbound (&unix_socket_table[UNIX_HASH_SIZE]) #define UNIX_ABSTRACT(sk) (unix_sk(sk)->addr->hash != UNIX_HASH_SIZE) +static struct sock *first_unix_socket(int *i) +{ + for (*i = 0; *i <= UNIX_HASH_SIZE; (*i)++) { + if (!hlist_empty(&unix_socket_table[*i])) + return __sk_head(&unix_socket_table[*i]); + } + return NULL; +} + +static struct sock *next_unix_socket(int *i, struct sock *s) +{ + struct sock *next = sk_next(s); + /* More in this chain? */ + if (next) + return next; + /* Look for next non-empty chain. */ + for ((*i)++; *i <= UNIX_HASH_SIZE; (*i)++) { + if (!hlist_empty(&unix_socket_table[*i])) + return __sk_head(&unix_socket_table[*i]); + } + return NULL; +} + +#define forall_unix_sockets(i, s) \ + for (s = first_unix_socket(&(i)); s; s = next_unix_socket(&(i),(s))) + #ifdef CONFIG_SECURITY_NETWORK static void unix_get_secdata(struct scm_cookie *scm, struct sk_buff *skb) { |