From mboxrd@z Thu Jan 1 00:00:00 1970 From: Dmitry Eremin-Solenikov Subject: [PATCH 08/10] af_ieee802154: add support for WANT_ACK socket option Date: Fri, 7 Aug 2009 16:58:43 +0400 Message-ID: <1249649925-11996-9-git-send-email-dbaryshkov@gmail.com> References: <1249649925-11996-1-git-send-email-dbaryshkov@gmail.com> <1249649925-11996-2-git-send-email-dbaryshkov@gmail.com> <1249649925-11996-3-git-send-email-dbaryshkov@gmail.com> <1249649925-11996-4-git-send-email-dbaryshkov@gmail.com> <1249649925-11996-5-git-send-email-dbaryshkov@gmail.com> <1249649925-11996-6-git-send-email-dbaryshkov@gmail.com> <1249649925-11996-7-git-send-email-dbaryshkov@gmail.com> <1249649925-11996-8-git-send-email-dbaryshkov@gmail.com> Mime-Version: 1.0 Content-Type: text/plain; charset="us-ascii" Content-Transfer-Encoding: 7bit Cc: "David S. Miller" , linux-zigbee-devel-5NWGOfrQmneRv+LV9MX5uipxlwaOVQ5f@public.gmane.org To: netdev-u79uwXL29TY76Z2rM5mHXA@public.gmane.org Return-path: In-Reply-To: <1249649925-11996-8-git-send-email-dbaryshkov-Re5JQEeQqe8AvxtiuMwx3w@public.gmane.org> List-Unsubscribe: , List-Archive: List-Post: List-Help: List-Subscribe: , Errors-To: linux-zigbee-devel-bounces-5NWGOfrQmneRv+LV9MX5uipxlwaOVQ5f@public.gmane.org List-Id: netdev.vger.kernel.org Signed-off-by: Dmitry Eremin-Solenikov --- include/net/af_ieee802154.h | 5 +++ net/ieee802154/dgram.c | 58 ++++++++++++++++++++++++++++++++++++++++--- 2 files changed, 59 insertions(+), 4 deletions(-) diff --git a/include/net/af_ieee802154.h b/include/net/af_ieee802154.h index e9c70ea..75e64c7 100644 --- a/include/net/af_ieee802154.h +++ b/include/net/af_ieee802154.h @@ -54,4 +54,9 @@ struct sockaddr_ieee802154 { struct ieee802154_addr addr; }; +/* get/setsockopt */ +#define SOL_IEEE802154 0 + +#define WPAN_WANTACK 0 + #endif diff --git a/net/ieee802154/dgram.c b/net/ieee802154/dgram.c index 25018a9..77ae685 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 = { -- 1.6.3.3 ------------------------------------------------------------------------------ Let Crystal Reports handle the reporting - Free Crystal Reports 2008 30-Day trial. Simplify your report design, integration and deployment - and focus on what you do best, core application coding. Discover what's new with Crystal Reports now. http://p.sf.net/sfu/bobj-july