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Diffstat (limited to 'net/vmw_vsock/af_vsock.c')
-rw-r--r--net/vmw_vsock/af_vsock.c55
1 files changed, 24 insertions, 31 deletions
diff --git a/net/vmw_vsock/af_vsock.c b/net/vmw_vsock/af_vsock.c
index 3f77f42a3b58..593071dabd1c 100644
--- a/net/vmw_vsock/af_vsock.c
+++ b/net/vmw_vsock/af_vsock.c
@@ -144,18 +144,18 @@ EXPORT_SYMBOL_GPL(vm_sockets_get_local_cid);
* VSOCK_HASH_SIZE + 1 so that vsock_bind_table[0] through
* vsock_bind_table[VSOCK_HASH_SIZE - 1] are for bound sockets and
* vsock_bind_table[VSOCK_HASH_SIZE] is for unbound sockets. The hash function
- * mods with VSOCK_HASH_SIZE - 1 to ensure this.
+ * mods with VSOCK_HASH_SIZE to ensure this.
*/
#define VSOCK_HASH_SIZE 251
#define MAX_PORT_RETRIES 24
-#define VSOCK_HASH(addr) ((addr)->svm_port % (VSOCK_HASH_SIZE - 1))
+#define VSOCK_HASH(addr) ((addr)->svm_port % VSOCK_HASH_SIZE)
#define vsock_bound_sockets(addr) (&vsock_bind_table[VSOCK_HASH(addr)])
#define vsock_unbound_sockets (&vsock_bind_table[VSOCK_HASH_SIZE])
/* XXX This can probably be implemented in a better way. */
#define VSOCK_CONN_HASH(src, dst) \
- (((src)->svm_cid ^ (dst)->svm_port) % (VSOCK_HASH_SIZE - 1))
+ (((src)->svm_cid ^ (dst)->svm_port) % VSOCK_HASH_SIZE)
#define vsock_connected_sockets(src, dst) \
(&vsock_connected_table[VSOCK_CONN_HASH(src, dst)])
#define vsock_connected_sockets_vsk(vsk) \
@@ -165,6 +165,18 @@ static struct list_head vsock_bind_table[VSOCK_HASH_SIZE + 1];
static struct list_head vsock_connected_table[VSOCK_HASH_SIZE];
static DEFINE_SPINLOCK(vsock_table_lock);
+/* Autobind this socket to the local address if necessary. */
+static int vsock_auto_bind(struct vsock_sock *vsk)
+{
+ struct sock *sk = sk_vsock(vsk);
+ struct sockaddr_vm local_addr;
+
+ if (vsock_addr_bound(&vsk->local_addr))
+ return 0;
+ vsock_addr_init(&local_addr, VMADDR_CID_ANY, VMADDR_PORT_ANY);
+ return __vsock_bind(sk, &local_addr);
+}
+
static void vsock_init_tables(void)
{
int i;
@@ -956,15 +968,10 @@ static int vsock_dgram_sendmsg(struct kiocb *kiocb, struct socket *sock,
lock_sock(sk);
- if (!vsock_addr_bound(&vsk->local_addr)) {
- struct sockaddr_vm local_addr;
-
- vsock_addr_init(&local_addr, VMADDR_CID_ANY, VMADDR_PORT_ANY);
- err = __vsock_bind(sk, &local_addr);
- if (err != 0)
- goto out;
+ err = vsock_auto_bind(vsk);
+ if (err)
+ goto out;
- }
/* If the provided message contains an address, use that. Otherwise
* fall back on the socket's remote handle (if it has been connected).
@@ -1038,15 +1045,9 @@ static int vsock_dgram_connect(struct socket *sock,
lock_sock(sk);
- if (!vsock_addr_bound(&vsk->local_addr)) {
- struct sockaddr_vm local_addr;
-
- vsock_addr_init(&local_addr, VMADDR_CID_ANY, VMADDR_PORT_ANY);
- err = __vsock_bind(sk, &local_addr);
- if (err != 0)
- goto out;
-
- }
+ err = vsock_auto_bind(vsk);
+ if (err)
+ goto out;
if (!transport->dgram_allow(remote_addr->svm_cid,
remote_addr->svm_port)) {
@@ -1163,17 +1164,9 @@ static int vsock_stream_connect(struct socket *sock, struct sockaddr *addr,
memcpy(&vsk->remote_addr, remote_addr,
sizeof(vsk->remote_addr));
- /* Autobind this socket to the local address if necessary. */
- if (!vsock_addr_bound(&vsk->local_addr)) {
- struct sockaddr_vm local_addr;
-
- vsock_addr_init(&local_addr, VMADDR_CID_ANY,
- VMADDR_PORT_ANY);
- err = __vsock_bind(sk, &local_addr);
- if (err != 0)
- goto out;
-
- }
+ err = vsock_auto_bind(vsk);
+ if (err)
+ goto out;
sk->sk_state = SS_CONNECTING;