diff options
Diffstat (limited to 'net/x25/af_x25.c')
| -rw-r--r-- | net/x25/af_x25.c | 24 |
1 files changed, 19 insertions, 5 deletions
diff --git a/net/x25/af_x25.c b/net/x25/af_x25.c index e3219e4cd04..9796f3ed1ed 100644 --- a/net/x25/af_x25.c +++ b/net/x25/af_x25.c @@ -55,6 +55,7 @@ #include <linux/notifier.h> #include <linux/init.h> #include <linux/compat.h> +#include <linux/ctype.h> #include <net/x25.h> #include <net/compat.h> @@ -512,15 +513,20 @@ static int x25_create(struct net *net, struct socket *sock, int protocol, { struct sock *sk; struct x25_sock *x25; - int rc = -ESOCKTNOSUPPORT; + int rc = -EAFNOSUPPORT; if (!net_eq(net, &init_net)) - return -EAFNOSUPPORT; + goto out; - if (sock->type != SOCK_SEQPACKET || protocol) + rc = -ESOCKTNOSUPPORT; + if (sock->type != SOCK_SEQPACKET) goto out; - rc = -ENOMEM; + rc = -EINVAL; + if (protocol) + goto out; + + rc = -ENOBUFS; if ((sk = x25_alloc_socket(net)) == NULL) goto out; @@ -643,7 +649,7 @@ static int x25_bind(struct socket *sock, struct sockaddr *uaddr, int addr_len) { struct sock *sk = sock->sk; struct sockaddr_x25 *addr = (struct sockaddr_x25 *)uaddr; - int rc = 0; + int len, i, rc = 0; lock_kernel(); if (!sock_flag(sk, SOCK_ZAPPED) || @@ -653,6 +659,14 @@ static int x25_bind(struct socket *sock, struct sockaddr *uaddr, int addr_len) goto out; } + len = strlen(addr->sx25_addr.x25_addr); + for (i = 0; i < len; i++) { + if (!isdigit(addr->sx25_addr.x25_addr[i])) { + rc = -EINVAL; + goto out; + } + } + x25_sk(sk)->source_addr = addr->sx25_addr; x25_insert_socket(sk); sock_reset_flag(sk, SOCK_ZAPPED); |