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af_ieee802154: add support for WANT_ACK socket option

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Signed-off-by: Dmitry Eremin-Solenikov <dbaryshkov@gmail.com>
Signed-off-by: David S. Miller <davem@davemloft.net>
This commit is contained in:
Dmitry Baryshkov 2009-08-07 02:58:43 +00:00 committed by David S. Miller
parent 74eda55db4
commit 99eb855864
2 changed files with 59 additions and 4 deletions
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5
include/net/af_ieee802154.h
View file

@ -54,4 +54,9 @@ struct sockaddr_ieee802154 {
struct ieee802154_addr addr;
};
/* get/setsockopt */
#define SOL_IEEE802154 0
#define WPAN_WANTACK 0
#endif

58
net/ieee802154/dgram.c
View file

@ -44,6 +44,7 @@ struct dgram_sock {
struct ieee802154_addr dst_addr;
unsigned bound:1;
unsigned want_ack:1;
};
static inline struct dgram_sock *dgram_sk(const struct sock *sk)
@ -51,7 +52,6 @@ static inline struct dgram_sock *dgram_sk(const struct sock *sk)
return container_of(sk, struct dgram_sock, sk);
}
static void dgram_hash(struct sock *sk)
{
write_lock_bh(&dgram_lock);
@ -74,6 +74,7 @@ static int dgram_init(struct sock *sk)
ro->dst_addr.addr_type = IEEE802154_ADDR_LONG;
ro->dst_addr.pan_id = 0xffff;
ro->want_ack = 1;
memset(&ro->dst_addr.hwaddr, 0xff, sizeof(ro->dst_addr.hwaddr));
return 0;
}
@ -237,7 +238,10 @@ static int dgram_sendmsg(struct kiocb *iocb, struct sock *sk,
skb_reset_network_header(skb);
mac_cb(skb)->flags = IEEE802154_FC_TYPE_DATA | MAC_CB_FLAG_ACKREQ;
mac_cb(skb)->flags = IEEE802154_FC_TYPE_DATA;
if (ro->want_ack)
mac_cb(skb)->flags |= MAC_CB_FLAG_ACKREQ;
mac_cb(skb)->seq = ieee802154_mlme_ops(dev)->get_dsn(dev);
err = dev_hard_header(skb, dev, ETH_P_IEEE802154, &ro->dst_addr,
ro->bound ? &ro->src_addr : NULL, size);
@ -382,13 +386,59 @@ int ieee802154_dgram_deliver(struct net_device *dev, struct sk_buff *skb)
static int dgram_getsockopt(struct sock *sk, int level, int optname,
char __user *optval, int __user *optlen)
{
return -EOPNOTSUPP;
struct dgram_sock *ro = dgram_sk(sk);
int val, len;
if (level != SOL_IEEE802154)
return -EOPNOTSUPP;
if (get_user(len, optlen))
return -EFAULT;
len = min_t(unsigned int, len, sizeof(int));
switch (optname) {
case WPAN_WANTACK:
val = ro->want_ack;
break;
default:
return -ENOPROTOOPT;
}
if (put_user(len, optlen))
return -EFAULT;
if (copy_to_user(optval, &val, len))
return -EFAULT;
return 0;
}
static int dgram_setsockopt(struct sock *sk, int level, int optname,
char __user *optval, int __user optlen)
{
return -EOPNOTSUPP;
struct dgram_sock *ro = dgram_sk(sk);
int val;
int err = 0;
if (optlen < sizeof(int))
return -EINVAL;
if (get_user(val, (int __user *)optval))
return -EFAULT;
lock_sock(sk);
switch (optname) {
case WPAN_WANTACK:
ro->want_ack = !!val;
break;
default:
err = -ENOPROTOOPT;
break;
}
release_sock(sk);
return err;
}
struct proto ieee802154_dgram_prot = {