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| author | Stephen Röttger <stephen.roettger@zero-entropy.de> | 2013-03-26 12:41:29 +0000 |
|---|---|---|
| committer | David S. Miller <davem@davemloft.net> | 2013-03-27 00:52:06 -0400 |
| commit | 6364e6ee788ae60f1c2de5c59e39adb157327e6c (patch) | |
| tree | 93c47db3c7df64e46d5db181390b476a4a156fb9 /net | |
| parent | 5abb0029c8df0312c6095e7a336d2b80ea358e77 (diff) | |
| download | linux-3.10-6364e6ee788ae60f1c2de5c59e39adb157327e6c.tar.gz linux-3.10-6364e6ee788ae60f1c2de5c59e39adb157327e6c.tar.bz2 linux-3.10-6364e6ee788ae60f1c2de5c59e39adb157327e6c.zip | |
ieee802154/dgram: Pass source address in dgram_recvmsg
This patch lets dgram_recvmsg fill in the sockaddr struct in
msg->msg_name with the source address of the packet.
This is used by the userland functions recvmsg and recvfrom to get the
senders address.
[Stefan: Changed from old zigbee legacy tree to mainline]
Signed-off-by: Stephen Röttger <stephen.roettger@zero-entropy.de>
Signed-off-by: Stefan Schmidt <stefan@datenfreihafen.org>
Signed-off-by: David S. Miller <davem@davemloft.net>
Diffstat (limited to 'net')
| -rw-r--r-- | net/ieee802154/dgram.c | 10 |
1 files changed, 10 insertions, 0 deletions
diff --git a/net/ieee802154/dgram.c b/net/ieee802154/dgram.c index e0da175f8e5..581a59504bd 100644 --- a/net/ieee802154/dgram.c +++ b/net/ieee802154/dgram.c @@ -291,6 +291,9 @@ static int dgram_recvmsg(struct kiocb *iocb, struct sock *sk, size_t copied = 0; int err = -EOPNOTSUPP; struct sk_buff *skb; + struct sockaddr_ieee802154 *saddr; + + saddr = (struct sockaddr_ieee802154 *)msg->msg_name; skb = skb_recv_datagram(sk, flags, noblock, &err); if (!skb) @@ -309,6 +312,13 @@ static int dgram_recvmsg(struct kiocb *iocb, struct sock *sk, sock_recv_ts_and_drops(msg, sk, skb); + if (saddr) { + saddr->family = AF_IEEE802154; + saddr->addr = mac_cb(skb)->sa; + } + if (addr_len) + *addr_len = sizeof(*saddr); + if (flags & MSG_TRUNC) copied = skb->len; done: |