From: Allan Stephens <[EMAIL PROTECTED]>
Signed-off-by: Allan Stephens <[EMAIL PROTECTED]>
Signed-off-by: Per Liden <[EMAIL PROTECTED]>
---
net/tipc/socket.c | 17 +++++++++++++----
1 files changed, 13 insertions(+), 4 deletions(-)
diff --git a/net/tipc/socket.c b/net/tipc/socket.c
index 6d4d2b0..32d7784 100644
--- a/net/tipc/socket.c
+++ b/net/tipc/socket.c
@@ -455,7 +455,8 @@ static int send_msg(struct kiocb *iocb,
if (unlikely(!dest))
return -EDESTADDRREQ;
- if (unlikely(dest->family != AF_TIPC))
+ if (unlikely((m->msg_namelen < sizeof(*dest)) ||
+ (dest->family != AF_TIPC)))
return -EINVAL;
needs_conn = (sock->state != SS_READY);
@@ -1245,7 +1246,8 @@ static int connect(struct socket *sock,
if (sock->state == SS_READY)
return -EOPNOTSUPP;
- /* MOVE THE REST OF THIS ERROR CHECKING TO send_msg()? */
+ /* Issue Posix-compliant error code if socket is in the wrong state */
+
if (sock->state == SS_LISTENING)
return -EOPNOTSUPP;
if (sock->state == SS_CONNECTING)
@@ -1253,13 +1255,20 @@ static int connect(struct socket *sock,
if (sock->state != SS_UNCONNECTED)
return -EISCONN;
- if ((destlen < sizeof(*dst)) || (dst->family != AF_TIPC) ||
- ((dst->addrtype != TIPC_ADDR_NAME) && (dst->addrtype != TIPC_ADDR_ID)))
+ /*
+ * Reject connection attempt using multicast address
+ *
+ * Note: send_msg() validates the rest of the address fields,
+ * so there's no need to do it here
+ */
+
+ if (dst->addrtype == TIPC_ADDR_MCAST)
return -EINVAL;
/* Send a 'SYN-' to destination */
m.msg_name = dest;
+ m.msg_namelen = destlen;
if ((res = send_msg(NULL, sock, &m, 0)) < 0) {
sock->state = SS_DISCONNECTING;
return res;
--
1.4.0
-
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