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| author | Dmitry Baryshkov <dbaryshkov@gmail.com> | 2009-08-07 04:58:43 +0200 |
|---|---|---|
| committer | David S. Miller <davem@davemloft.net> | 2009-08-13 06:54:50 +0200 |
| commit | 99eb8558642b988055d2b8b16a334475550f78d3 (patch) | |
| tree | c139d938a9b3c43e8ce28201a995bf6973122daf /net/ieee802154/dgram.c | |
| parent | af_ieee802154: minor cleanup in dgram_bind (diff) | |
| download | linux-99eb8558642b988055d2b8b16a334475550f78d3.tar.xz linux-99eb8558642b988055d2b8b16a334475550f78d3.zip | |
af_ieee802154: add support for WANT_ACK socket option
Signed-off-by: Dmitry Eremin-Solenikov <dbaryshkov@gmail.com>
Signed-off-by: David S. Miller <davem@davemloft.net>
Diffstat (limited to '')
| -rw-r--r-- | net/ieee802154/dgram.c | 58 |
1 files changed, 54 insertions, 4 deletions
diff --git a/net/ieee802154/dgram.c b/net/ieee802154/dgram.c index 25018a9a53aa..77ae6852b93d 100644 --- a/net/ieee802154/dgram.c +++ b/net/ieee802154/dgram.c @@ -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 = { |