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-rw-r--r--include/net/inet_hashtables.h2
-rw-r--r--include/net/phonet/phonet.h2
-rw-r--r--include/net/ping.h2
-rw-r--r--include/net/raw.h2
-rw-r--r--include/net/sock.h6
-rw-r--r--include/net/udp.h3
-rw-r--r--net/ieee802154/socket.c17
-rw-r--r--net/ipv4/af_inet.c9
-rw-r--r--net/ipv4/inet_connection_sock.c8
-rw-r--r--net/ipv4/inet_hashtables.c4
-rw-r--r--net/ipv4/ping.c4
-rw-r--r--net/ipv4/raw.c4
-rw-r--r--net/ipv6/af_inet6.c6
-rw-r--r--net/phonet/socket.c6
-rw-r--r--net/sctp/socket.c3
15 files changed, 53 insertions, 25 deletions
diff --git a/include/net/inet_hashtables.h b/include/net/inet_hashtables.h
index de2e3ad..554440e 100644
--- a/include/net/inet_hashtables.h
+++ b/include/net/inet_hashtables.h
@@ -208,7 +208,7 @@ void inet_hashinfo_init(struct inet_hashinfo *h);
bool inet_ehash_insert(struct sock *sk, struct sock *osk);
bool inet_ehash_nolisten(struct sock *sk, struct sock *osk);
void __inet_hash(struct sock *sk, struct sock *osk);
-void inet_hash(struct sock *sk);
+int inet_hash(struct sock *sk);
void inet_unhash(struct sock *sk);
struct sock *__inet_lookup_listener(struct net *net,
diff --git a/include/net/phonet/phonet.h b/include/net/phonet/phonet.h
index 68e5097..039cc29 100644
--- a/include/net/phonet/phonet.h
+++ b/include/net/phonet/phonet.h
@@ -51,7 +51,7 @@ void pn_sock_init(void);
struct sock *pn_find_sock_by_sa(struct net *net, const struct sockaddr_pn *sa);
void pn_deliver_sock_broadcast(struct net *net, struct sk_buff *skb);
void phonet_get_local_port_range(int *min, int *max);
-void pn_sock_hash(struct sock *sk);
+int pn_sock_hash(struct sock *sk);
void pn_sock_unhash(struct sock *sk);
int pn_sock_get_port(struct sock *sk, unsigned short sport);
diff --git a/include/net/ping.h b/include/net/ping.h
index ac80cb4..5fd7cc2 100644
--- a/include/net/ping.h
+++ b/include/net/ping.h
@@ -65,7 +65,7 @@ struct pingfakehdr {
};
int ping_get_port(struct sock *sk, unsigned short ident);
-void ping_hash(struct sock *sk);
+int ping_hash(struct sock *sk);
void ping_unhash(struct sock *sk);
int ping_init_sock(struct sock *sk);
diff --git a/include/net/raw.h b/include/net/raw.h
index 6a40c65..3e78900 100644
--- a/include/net/raw.h
+++ b/include/net/raw.h
@@ -57,7 +57,7 @@ int raw_seq_open(struct inode *ino, struct file *file,
#endif
-void raw_hash_sk(struct sock *sk);
+int raw_hash_sk(struct sock *sk);
void raw_unhash_sk(struct sock *sk);
struct raw_sock {
diff --git a/include/net/sock.h b/include/net/sock.h
index f5ea148..255d3e0 100644
--- a/include/net/sock.h
+++ b/include/net/sock.h
@@ -984,7 +984,7 @@ struct proto {
void (*release_cb)(struct sock *sk);
/* Keeping track of sk's, looking them up, and port selection methods. */
- void (*hash)(struct sock *sk);
+ int (*hash)(struct sock *sk);
void (*unhash)(struct sock *sk);
void (*rehash)(struct sock *sk);
int (*get_port)(struct sock *sk, unsigned short snum);
@@ -1194,10 +1194,10 @@ static inline void sock_prot_inuse_add(struct net *net, struct proto *prot,
/* With per-bucket locks this operation is not-atomic, so that
* this version is not worse.
*/
-static inline void __sk_prot_rehash(struct sock *sk)
+static inline int __sk_prot_rehash(struct sock *sk)
{
sk->sk_prot->unhash(sk);
- sk->sk_prot->hash(sk);
+ return sk->sk_prot->hash(sk);
}
void sk_prot_clear_portaddr_nulls(struct sock *sk, int size);
diff --git a/include/net/udp.h b/include/net/udp.h
index 2842541..92927f7 100644
--- a/include/net/udp.h
+++ b/include/net/udp.h
@@ -177,9 +177,10 @@ static inline struct udphdr *udp_gro_udphdr(struct sk_buff *skb)
}
/* hash routines shared between UDPv4/6 and UDP-Litev4/6 */
-static inline void udp_lib_hash(struct sock *sk)
+static inline int udp_lib_hash(struct sock *sk)
{
BUG();
+ return 0;
}
void udp_lib_unhash(struct sock *sk);
diff --git a/net/ieee802154/socket.c b/net/ieee802154/socket.c
index a548be2..e0bd013 100644
--- a/net/ieee802154/socket.c
+++ b/net/ieee802154/socket.c
@@ -182,12 +182,14 @@ static int ieee802154_sock_ioctl(struct socket *sock, unsigned int cmd,
static HLIST_HEAD(raw_head);
static DEFINE_RWLOCK(raw_lock);
-static void raw_hash(struct sock *sk)
+static int raw_hash(struct sock *sk)
{
write_lock_bh(&raw_lock);
sk_add_node(sk, &raw_head);
sock_prot_inuse_add(sock_net(sk), sk->sk_prot, 1);
write_unlock_bh(&raw_lock);
+
+ return 0;
}
static void raw_unhash(struct sock *sk)
@@ -462,12 +464,14 @@ static inline struct dgram_sock *dgram_sk(const struct sock *sk)
return container_of(sk, struct dgram_sock, sk);
}
-static void dgram_hash(struct sock *sk)
+static int dgram_hash(struct sock *sk)
{
write_lock_bh(&dgram_lock);
sk_add_node(sk, &dgram_head);
sock_prot_inuse_add(sock_net(sk), sk->sk_prot, 1);
write_unlock_bh(&dgram_lock);
+
+ return 0;
}
static void dgram_unhash(struct sock *sk)
@@ -1026,8 +1030,13 @@ static int ieee802154_create(struct net *net, struct socket *sock,
/* Checksums on by default */
sock_set_flag(sk, SOCK_ZAPPED);
- if (sk->sk_prot->hash)
- sk->sk_prot->hash(sk);
+ if (sk->sk_prot->hash) {
+ rc = sk->sk_prot->hash(sk);
+ if (rc) {
+ sk_common_release(sk);
+ goto out;
+ }
+ }
if (sk->sk_prot->init) {
rc = sk->sk_prot->init(sk);
diff --git a/net/ipv4/af_inet.c b/net/ipv4/af_inet.c
index 5c5db66..eade66d 100644
--- a/net/ipv4/af_inet.c
+++ b/net/ipv4/af_inet.c
@@ -370,7 +370,11 @@ lookup_protocol:
*/
inet->inet_sport = htons(inet->inet_num);
/* Add to protocol hash chains. */
- sk->sk_prot->hash(sk);
+ err = sk->sk_prot->hash(sk);
+ if (err) {
+ sk_common_release(sk);
+ goto out;
+ }
}
if (sk->sk_prot->init) {
@@ -1142,8 +1146,7 @@ static int inet_sk_reselect_saddr(struct sock *sk)
* Besides that, it does not check for connection
* uniqueness. Wait for troubles.
*/
- __sk_prot_rehash(sk);
- return 0;
+ return __sk_prot_rehash(sk);
}
int inet_sk_rebuild_header(struct sock *sk)
diff --git a/net/ipv4/inet_connection_sock.c b/net/ipv4/inet_connection_sock.c
index 9b17c179..12c8d38 100644
--- a/net/ipv4/inet_connection_sock.c
+++ b/net/ipv4/inet_connection_sock.c
@@ -734,6 +734,7 @@ int inet_csk_listen_start(struct sock *sk, int backlog)
{
struct inet_connection_sock *icsk = inet_csk(sk);
struct inet_sock *inet = inet_sk(sk);
+ int err = -EADDRINUSE;
reqsk_queue_alloc(&icsk->icsk_accept_queue);
@@ -751,13 +752,14 @@ int inet_csk_listen_start(struct sock *sk, int backlog)
inet->inet_sport = htons(inet->inet_num);
sk_dst_reset(sk);
- sk->sk_prot->hash(sk);
+ err = sk->sk_prot->hash(sk);
- return 0;
+ if (likely(!err))
+ return 0;
}
sk->sk_state = TCP_CLOSE;
- return -EADDRINUSE;
+ return err;
}
EXPORT_SYMBOL_GPL(inet_csk_listen_start);
diff --git a/net/ipv4/inet_hashtables.c b/net/ipv4/inet_hashtables.c
index ccc5980..b6023b7 100644
--- a/net/ipv4/inet_hashtables.c
+++ b/net/ipv4/inet_hashtables.c
@@ -468,13 +468,15 @@ void __inet_hash(struct sock *sk, struct sock *osk)
}
EXPORT_SYMBOL(__inet_hash);
-void inet_hash(struct sock *sk)
+int inet_hash(struct sock *sk)
{
if (sk->sk_state != TCP_CLOSE) {
local_bh_disable();
__inet_hash(sk, NULL);
local_bh_enable();
}
+
+ return 0;
}
EXPORT_SYMBOL_GPL(inet_hash);
diff --git a/net/ipv4/ping.c b/net/ipv4/ping.c
index c117b21..f6f93fc 100644
--- a/net/ipv4/ping.c
+++ b/net/ipv4/ping.c
@@ -145,10 +145,12 @@ fail:
}
EXPORT_SYMBOL_GPL(ping_get_port);
-void ping_hash(struct sock *sk)
+int ping_hash(struct sock *sk)
{
pr_debug("ping_hash(sk->port=%u)\n", inet_sk(sk)->inet_num);
BUG(); /* "Please do not press this button again." */
+
+ return 0;
}
void ping_unhash(struct sock *sk)
diff --git a/net/ipv4/raw.c b/net/ipv4/raw.c
index bc35f18..d635251 100644
--- a/net/ipv4/raw.c
+++ b/net/ipv4/raw.c
@@ -93,7 +93,7 @@ static struct raw_hashinfo raw_v4_hashinfo = {
.lock = __RW_LOCK_UNLOCKED(raw_v4_hashinfo.lock),
};
-void raw_hash_sk(struct sock *sk)
+int raw_hash_sk(struct sock *sk)
{
struct raw_hashinfo *h = sk->sk_prot->h.raw_hash;
struct hlist_head *head;
@@ -104,6 +104,8 @@ void raw_hash_sk(struct sock *sk)
sk_add_node(sk, head);
sock_prot_inuse_add(sock_net(sk), sk->sk_prot, 1);
write_unlock_bh(&h->lock);
+
+ return 0;
}
EXPORT_SYMBOL_GPL(raw_hash_sk);
diff --git a/net/ipv6/af_inet6.c b/net/ipv6/af_inet6.c
index 9f5137c..b11c37c 100644
--- a/net/ipv6/af_inet6.c
+++ b/net/ipv6/af_inet6.c
@@ -235,7 +235,11 @@ lookup_protocol:
* creation time automatically shares.
*/
inet->inet_sport = htons(inet->inet_num);
- sk->sk_prot->hash(sk);
+ err = sk->sk_prot->hash(sk);
+ if (err) {
+ sk_common_release(sk);
+ goto out;
+ }
}
if (sk->sk_prot->init) {
err = sk->sk_prot->init(sk);
diff --git a/net/phonet/socket.c b/net/phonet/socket.c
index d575ef4..ffd5f22 100644
--- a/net/phonet/socket.c
+++ b/net/phonet/socket.c
@@ -140,13 +140,15 @@ void pn_deliver_sock_broadcast(struct net *net, struct sk_buff *skb)
rcu_read_unlock();
}
-void pn_sock_hash(struct sock *sk)
+int pn_sock_hash(struct sock *sk)
{
struct hlist_head *hlist = pn_hash_list(pn_sk(sk)->sobject);
mutex_lock(&pnsocks.lock);
sk_add_node_rcu(sk, hlist);
mutex_unlock(&pnsocks.lock);
+
+ return 0;
}
EXPORT_SYMBOL(pn_sock_hash);
@@ -200,7 +202,7 @@ static int pn_socket_bind(struct socket *sock, struct sockaddr *addr, int len)
pn->resource = spn->spn_resource;
/* Enable RX on the socket */
- sk->sk_prot->hash(sk);
+ err = sk->sk_prot->hash(sk);
out_port:
mutex_unlock(&port_mutex);
out:
diff --git a/net/sctp/socket.c b/net/sctp/socket.c
index 5ca2ebf..6427b9d 100644
--- a/net/sctp/socket.c
+++ b/net/sctp/socket.c
@@ -6101,9 +6101,10 @@ static int sctp_getsockopt(struct sock *sk, int level, int optname,
return retval;
}
-static void sctp_hash(struct sock *sk)
+static int sctp_hash(struct sock *sk)
{
/* STUB */
+ return 0;
}
static void sctp_unhash(struct sock *sk)
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