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authorThomas Graf <tgraf@suug.ch>2005-06-18 22:53:48 -0700
committerDavid S. Miller <davem@davemloft.net>2005-06-18 22:53:48 -0700
commit1797754ea7ee5e0d859b0a32506ff999f8d5fb71 (patch)
treea35d05f9106d903412a6fff714be38427fc4d0fa /net/netlink/af_netlink.c
parentaf0d114176720c2100dfa624ab433796d333d730 (diff)
downloadop-kernel-dev-1797754ea7ee5e0d859b0a32506ff999f8d5fb71.zip
op-kernel-dev-1797754ea7ee5e0d859b0a32506ff999f8d5fb71.tar.gz
[NETLINK]: Introduce NLMSG_NEW macro to better handle netlink flags
Introduces a new macro NLMSG_NEW which extends NLMSG_PUT but takes a flags argument. NLMSG_PUT stays there for compatibility but now calls NLMSG_NEW with flags == 0. NLMSG_PUT_ANSWER is renamed to NLMSG_NEW_ANSWER which now also takes a flags argument. Also converts the users of NLMSG_PUT_ANSWER to use NLMSG_NEW_ANSWER and fixes the two direct users of __nlmsg_put to either provide the flags or use NLMSG_NEW(_ANSWER). Signed-off-by: Thomas Graf <tgraf@suug.ch> Signed-off-by: David S. Miller <davem@davemloft.net>
Diffstat (limited to 'net/netlink/af_netlink.c')
-rw-r--r--net/netlink/af_netlink.c8
1 files changed, 5 insertions, 3 deletions
diff --git a/net/netlink/af_netlink.c b/net/netlink/af_netlink.c
index e41ce45..70bcd47 100644
--- a/net/netlink/af_netlink.c
+++ b/net/netlink/af_netlink.c
@@ -1095,8 +1095,7 @@ static int netlink_dump(struct sock *sk)
return 0;
}
- nlh = __nlmsg_put(skb, NETLINK_CB(cb->skb).pid, cb->nlh->nlmsg_seq, NLMSG_DONE, sizeof(int));
- nlh->nlmsg_flags |= NLM_F_MULTI;
+ nlh = NLMSG_NEW_ANSWER(skb, cb, NLMSG_DONE, sizeof(len), NLM_F_MULTI);
memcpy(NLMSG_DATA(nlh), &len, sizeof(len));
skb_queue_tail(&sk->sk_receive_queue, skb);
sk->sk_data_ready(sk, skb->len);
@@ -1107,6 +1106,9 @@ static int netlink_dump(struct sock *sk)
netlink_destroy_callback(cb);
return 0;
+
+nlmsg_failure:
+ return -ENOBUFS;
}
int netlink_dump_start(struct sock *ssk, struct sk_buff *skb,
@@ -1178,7 +1180,7 @@ void netlink_ack(struct sk_buff *in_skb, struct nlmsghdr *nlh, int err)
}
rep = __nlmsg_put(skb, NETLINK_CB(in_skb).pid, nlh->nlmsg_seq,
- NLMSG_ERROR, sizeof(struct nlmsgerr));
+ NLMSG_ERROR, sizeof(struct nlmsgerr), 0);
errmsg = NLMSG_DATA(rep);
errmsg->error = err;
memcpy(&errmsg->msg, nlh, err ? nlh->nlmsg_len : sizeof(struct nlmsghdr));
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