diff options
Diffstat (limited to 'net/can/raw.c')
| -rw-r--r-- | net/can/raw.c | 14 |
1 files changed, 8 insertions, 6 deletions
diff --git a/net/can/raw.c b/net/can/raw.c index 37b47a39a3ed..139d9471ddcf 100644 --- a/net/can/raw.c +++ b/net/can/raw.c @@ -60,6 +60,8 @@ MODULE_LICENSE("Dual BSD/GPL"); MODULE_AUTHOR("Urs Thuermann <urs.thuermann@volkswagen.de>"); MODULE_ALIAS("can-proto-1"); +#define RAW_MIN_NAMELEN CAN_REQUIRED_SIZE(struct sockaddr_can, can_ifindex) + #define MASK_ALL 0 /* A raw socket has a list of can_filters attached to it, each receiving @@ -394,7 +396,7 @@ static int raw_bind(struct socket *sock, struct sockaddr *uaddr, int len) int err = 0; int notify_enetdown = 0; - if (len < CAN_REQUIRED_SIZE(*addr, can_ifindex)) + if (len < RAW_MIN_NAMELEN) return -EINVAL; if (addr->can_family != AF_CAN) return -EINVAL; @@ -475,11 +477,11 @@ static int raw_getname(struct socket *sock, struct sockaddr *uaddr, if (peer) return -EOPNOTSUPP; - memset(addr, 0, sizeof(*addr)); + memset(addr, 0, RAW_MIN_NAMELEN); addr->can_family = AF_CAN; addr->can_ifindex = ro->ifindex; - return sizeof(*addr); + return RAW_MIN_NAMELEN; } static int raw_setsockopt(struct socket *sock, int level, int optname, @@ -739,7 +741,7 @@ static int raw_sendmsg(struct socket *sock, struct msghdr *msg, size_t size) if (msg->msg_name) { DECLARE_SOCKADDR(struct sockaddr_can *, addr, msg->msg_name); - if (msg->msg_namelen < CAN_REQUIRED_SIZE(*addr, can_ifindex)) + if (msg->msg_namelen < RAW_MIN_NAMELEN) return -EINVAL; if (addr->can_family != AF_CAN) @@ -832,8 +834,8 @@ static int raw_recvmsg(struct socket *sock, struct msghdr *msg, size_t size, sock_recv_ts_and_drops(msg, sk, skb); if (msg->msg_name) { - __sockaddr_check_size(sizeof(struct sockaddr_can)); - msg->msg_namelen = sizeof(struct sockaddr_can); + __sockaddr_check_size(RAW_MIN_NAMELEN); + msg->msg_namelen = RAW_MIN_NAMELEN; memcpy(msg->msg_name, skb->cb, msg->msg_namelen); } |