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Diffstat (limited to 'net/ieee802154/socket.c')
-rw-r--r--net/ieee802154/socket.c104
1 files changed, 57 insertions, 47 deletions
diff --git a/net/ieee802154/socket.c b/net/ieee802154/socket.c
index 3b2366a88c3c..e542fbe113e7 100644
--- a/net/ieee802154/socket.c
+++ b/net/ieee802154/socket.c
@@ -96,7 +96,7 @@ static int ieee802154_sock_sendmsg(struct socket *sock, struct msghdr *msg,
return sk->sk_prot->sendmsg(sk, msg, len);
}
-static int ieee802154_sock_bind(struct socket *sock, struct sockaddr *uaddr,
+static int ieee802154_sock_bind(struct socket *sock, struct sockaddr_unsized *uaddr,
int addr_len)
{
struct sock *sk = sock->sk;
@@ -107,7 +107,7 @@ static int ieee802154_sock_bind(struct socket *sock, struct sockaddr *uaddr,
return sock_no_bind(sock, uaddr, addr_len);
}
-static int ieee802154_sock_connect(struct socket *sock, struct sockaddr *uaddr,
+static int ieee802154_sock_connect(struct socket *sock, struct sockaddr_unsized *uaddr,
int addr_len, int flags)
{
struct sock *sk = sock->sk;
@@ -162,7 +162,7 @@ static int ieee802154_sock_ioctl(struct socket *sock, unsigned int cmd,
default:
if (!sk->sk_prot->ioctl)
return -ENOIOCTLCMD;
- return sk->sk_prot->ioctl(sk, cmd, arg);
+ return sk_ioctl(sk, cmd, (void __user *)arg);
}
}
@@ -193,15 +193,16 @@ static void raw_close(struct sock *sk, long timeout)
sk_common_release(sk);
}
-static int raw_bind(struct sock *sk, struct sockaddr *_uaddr, int len)
+static int raw_bind(struct sock *sk, struct sockaddr_unsized *_uaddr, int len)
{
struct ieee802154_addr addr;
struct sockaddr_ieee802154 *uaddr = (struct sockaddr_ieee802154 *)_uaddr;
int err = 0;
struct net_device *dev = NULL;
- if (len < sizeof(*uaddr))
- return -EINVAL;
+ err = ieee802154_sockaddr_check_size(uaddr, len);
+ if (err < 0)
+ return err;
uaddr = (struct sockaddr_ieee802154 *)_uaddr;
if (uaddr->family != AF_IEEE802154)
@@ -226,7 +227,7 @@ out:
return err;
}
-static int raw_connect(struct sock *sk, struct sockaddr *uaddr,
+static int raw_connect(struct sock *sk, struct sockaddr_unsized *uaddr,
int addr_len)
{
return -ENOTSUPP;
@@ -271,6 +272,10 @@ static int raw_sendmsg(struct sock *sk, struct msghdr *msg, size_t size)
err = -EMSGSIZE;
goto out_dev;
}
+ if (!size) {
+ err = 0;
+ goto out_dev;
+ }
hlen = LL_RESERVED_SPACE(dev);
tlen = dev->needed_tailroom;
@@ -308,13 +313,13 @@ out:
}
static int raw_recvmsg(struct sock *sk, struct msghdr *msg, size_t len,
- int noblock, int flags, int *addr_len)
+ int flags, int *addr_len)
{
size_t copied = 0;
int err = -EOPNOTSUPP;
struct sk_buff *skb;
- skb = skb_recv_datagram(sk, flags, noblock, &err);
+ skb = skb_recv_datagram(sk, flags, &err);
if (!skb)
goto out;
@@ -328,7 +333,7 @@ static int raw_recvmsg(struct sock *sk, struct msghdr *msg, size_t len,
if (err)
goto done;
- sock_recv_ts_and_drops(msg, sk, skb);
+ sock_recv_cmsgs(msg, sk, skb);
if (flags & MSG_TRUNC)
copied = skb->len;
@@ -421,7 +426,6 @@ static const struct proto_ops ieee802154_raw_ops = {
.sendmsg = ieee802154_sock_sendmsg,
.recvmsg = sock_common_recvmsg,
.mmap = sock_no_mmap,
- .sendpage = sock_no_sendpage,
};
/* DGRAM Sockets (802.15.4 dataframes) */
@@ -481,7 +485,7 @@ static void dgram_close(struct sock *sk, long timeout)
sk_common_release(sk);
}
-static int dgram_bind(struct sock *sk, struct sockaddr *uaddr, int len)
+static int dgram_bind(struct sock *sk, struct sockaddr_unsized *uaddr, int len)
{
struct sockaddr_ieee802154 *addr = (struct sockaddr_ieee802154 *)uaddr;
struct ieee802154_addr haddr;
@@ -493,11 +497,14 @@ static int dgram_bind(struct sock *sk, struct sockaddr *uaddr, int len)
ro->bound = 0;
- if (len < sizeof(*addr))
+ err = ieee802154_sockaddr_check_size(addr, len);
+ if (err < 0)
goto out;
- if (addr->family != AF_IEEE802154)
+ if (addr->family != AF_IEEE802154) {
+ err = -EINVAL;
goto out;
+ }
ieee802154_addr_from_sa(&haddr, &addr->addr);
dev = ieee802154_get_dev(sock_net(sk), &haddr);
@@ -523,22 +530,21 @@ out:
return err;
}
-static int dgram_ioctl(struct sock *sk, int cmd, unsigned long arg)
+static int dgram_ioctl(struct sock *sk, int cmd, int *karg)
{
switch (cmd) {
case SIOCOUTQ:
{
- int amount = sk_wmem_alloc_get(sk);
+ *karg = sk_wmem_alloc_get(sk);
- return put_user(amount, (int __user *)arg);
+ return 0;
}
case SIOCINQ:
{
struct sk_buff *skb;
- unsigned long amount;
- amount = 0;
+ *karg = 0;
spin_lock_bh(&sk->sk_receive_queue.lock);
skb = skb_peek(&sk->sk_receive_queue);
if (skb) {
@@ -546,10 +552,10 @@ static int dgram_ioctl(struct sock *sk, int cmd, unsigned long arg)
* of this packet since that is all
* that will be read.
*/
- amount = skb->len - ieee802154_hdr_length(skb);
+ *karg = skb->len - ieee802154_hdr_length(skb);
}
spin_unlock_bh(&sk->sk_receive_queue.lock);
- return put_user(amount, (int __user *)arg);
+ return 0;
}
}
@@ -557,15 +563,16 @@ static int dgram_ioctl(struct sock *sk, int cmd, unsigned long arg)
}
/* FIXME: autobind */
-static int dgram_connect(struct sock *sk, struct sockaddr *uaddr,
+static int dgram_connect(struct sock *sk, struct sockaddr_unsized *uaddr,
int len)
{
struct sockaddr_ieee802154 *addr = (struct sockaddr_ieee802154 *)uaddr;
struct dgram_sock *ro = dgram_sk(sk);
int err = 0;
- if (len < sizeof(*addr))
- return -EINVAL;
+ err = ieee802154_sockaddr_check_size(addr, len);
+ if (err < 0)
+ return err;
if (addr->family != AF_IEEE802154)
return -EINVAL;
@@ -604,6 +611,7 @@ static int dgram_sendmsg(struct sock *sk, struct msghdr *msg, size_t size)
struct ieee802154_mac_cb *cb;
struct dgram_sock *ro = dgram_sk(sk);
struct ieee802154_addr dst_addr;
+ DECLARE_SOCKADDR(struct sockaddr_ieee802154*, daddr, msg->msg_name);
int hlen, tlen;
int err;
@@ -612,10 +620,20 @@ static int dgram_sendmsg(struct sock *sk, struct msghdr *msg, size_t size)
return -EOPNOTSUPP;
}
- if (!ro->connected && !msg->msg_name)
- return -EDESTADDRREQ;
- else if (ro->connected && msg->msg_name)
- return -EISCONN;
+ if (msg->msg_name) {
+ if (ro->connected)
+ return -EISCONN;
+ if (msg->msg_namelen < IEEE802154_MIN_NAMELEN)
+ return -EINVAL;
+ err = ieee802154_sockaddr_check_size(daddr, msg->msg_namelen);
+ if (err < 0)
+ return err;
+ ieee802154_addr_from_sa(&dst_addr, &daddr->addr);
+ } else {
+ if (!ro->connected)
+ return -EDESTADDRREQ;
+ dst_addr = ro->dst_addr;
+ }
if (!ro->bound)
dev = dev_getfirstbyhwtype(sock_net(sk), ARPHRD_IEEE802154);
@@ -651,16 +669,6 @@ static int dgram_sendmsg(struct sock *sk, struct msghdr *msg, size_t size)
cb = mac_cb_init(skb);
cb->type = IEEE802154_FC_TYPE_DATA;
cb->ackreq = ro->want_ack;
-
- if (msg->msg_name) {
- DECLARE_SOCKADDR(struct sockaddr_ieee802154*,
- daddr, msg->msg_name);
-
- ieee802154_addr_from_sa(&dst_addr, &daddr->addr);
- } else {
- dst_addr = ro->dst_addr;
- }
-
cb->secen = ro->secen;
cb->secen_override = ro->secen_override;
cb->seclevel = ro->seclevel;
@@ -695,7 +703,7 @@ out:
}
static int dgram_recvmsg(struct sock *sk, struct msghdr *msg, size_t len,
- int noblock, int flags, int *addr_len)
+ int flags, int *addr_len)
{
size_t copied = 0;
int err = -EOPNOTSUPP;
@@ -703,7 +711,7 @@ static int dgram_recvmsg(struct sock *sk, struct msghdr *msg, size_t len,
struct dgram_sock *ro = dgram_sk(sk);
DECLARE_SOCKADDR(struct sockaddr_ieee802154 *, saddr, msg->msg_name);
- skb = skb_recv_datagram(sk, flags, noblock, &err);
+ skb = skb_recv_datagram(sk, flags, &err);
if (!skb)
goto out;
@@ -718,7 +726,7 @@ static int dgram_recvmsg(struct sock *sk, struct msghdr *msg, size_t len,
if (err)
goto done;
- sock_recv_ts_and_drops(msg, sk, skb);
+ sock_recv_cmsgs(msg, sk, skb);
if (saddr) {
/* Clear the implicit padding in struct sockaddr_ieee802154
@@ -980,7 +988,6 @@ static const struct proto_ops ieee802154_dgram_ops = {
.sendmsg = ieee802154_sock_sendmsg,
.recvmsg = sock_common_recvmsg,
.mmap = sock_no_mmap,
- .sendpage = sock_no_sendpage,
};
static void ieee802154_sock_destruct(struct sock *sk)
@@ -1036,19 +1043,21 @@ static int ieee802154_create(struct net *net, struct socket *sock,
if (sk->sk_prot->hash) {
rc = sk->sk_prot->hash(sk);
- if (rc) {
- sk_common_release(sk);
- goto out;
- }
+ if (rc)
+ goto out_sk_release;
}
if (sk->sk_prot->init) {
rc = sk->sk_prot->init(sk);
if (rc)
- sk_common_release(sk);
+ goto out_sk_release;
}
out:
return rc;
+out_sk_release:
+ sk_common_release(sk);
+ sock->sk = NULL;
+ goto out;
}
static const struct net_proto_family ieee802154_family_ops = {
@@ -1130,4 +1139,5 @@ module_init(af_ieee802154_init);
module_exit(af_ieee802154_remove);
MODULE_LICENSE("GPL");
+MODULE_DESCRIPTION("IEEE 802.15.4 socket interface");
MODULE_ALIAS_NETPROTO(PF_IEEE802154);
generated by cgit (git 2.34.1) at 2025-12-25 07:20:09 +0000