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authorJohannes Berg <johannes@sipsolutions.net>2009-07-10 09:51:34 +0000
committerDavid S. Miller <davem@davemloft.net>2009-07-12 14:03:27 -0700
commit134e63756d5f3d0f7604dfcca847b09d1b14fd66 (patch)
treed2b5eab085d90cde0a4c0136a118800ca72b76ad /net/wireless
parent11a28d373ed2539a110d56419457e2e7db221ac7 (diff)
genetlink: make netns aware
This makes generic netlink network namespace aware. No generic netlink families except for the controller family are made namespace aware, they need to be checked one by one and then set the family->netnsok member to true. A new function genlmsg_multicast_netns() is introduced to allow sending a multicast message in a given namespace, for example when it applies to an object that lives in that namespace, a new function genlmsg_multicast_allns() to send a message to all network namespaces (for objects that do not have an associated netns). The function genlmsg_multicast() is changed to multicast the message in just init_net, which is currently correct for all generic netlink families since they only work in init_net right now. Some will later want to work in all net namespaces because they do not care about the netns at all -- those will have to be converted to use one of the new functions genlmsg_multicast_allns() or genlmsg_multicast_netns() whenever they are made netns aware in some way. After this patch families can easily decide whether or not they should be available in all net namespaces. Many genl families us it for objects not related to networking and should therefore be available in all namespaces, but that will have to be done on a per family basis. Note that this doesn't touch on the checkpoint/restart problem where network namespaces could be used, genl families and multicast groups are numbered globally and I see no easy way of changing that, especially since it must be possible to multicast to all network namespaces for those families that do not care about netns. Signed-off-by: Johannes Berg <johannes@sipsolutions.net> Signed-off-by: David S. Miller <davem@davemloft.net>
Diffstat (limited to 'net/wireless')
-rw-r--r--net/wireless/nl80211.c14
1 files changed, 7 insertions, 7 deletions
diff --git a/net/wireless/nl80211.c b/net/wireless/nl80211.c
index 9deb12f73c44..2a04beba4369 100644
--- a/net/wireless/nl80211.c
+++ b/net/wireless/nl80211.c
@@ -413,7 +413,7 @@ static int nl80211_get_wiphy(struct sk_buff *skb, struct genl_info *info)
cfg80211_unlock_rdev(dev);
- return genlmsg_unicast(msg, info->snd_pid);
+ return genlmsg_reply(msg, info);
out_free:
nlmsg_free(msg);
@@ -739,7 +739,7 @@ static int nl80211_get_interface(struct sk_buff *skb, struct genl_info *info)
dev_put(netdev);
cfg80211_unlock_rdev(dev);
- return genlmsg_unicast(msg, info->snd_pid);
+ return genlmsg_reply(msg, info);
out_free:
nlmsg_free(msg);
@@ -1030,7 +1030,7 @@ static int nl80211_get_key(struct sk_buff *skb, struct genl_info *info)
goto nla_put_failure;
genlmsg_end(msg, hdr);
- err = genlmsg_unicast(msg, info->snd_pid);
+ err = genlmsg_reply(msg, info);
goto out;
nla_put_failure:
@@ -1618,7 +1618,7 @@ static int nl80211_get_station(struct sk_buff *skb, struct genl_info *info)
dev, mac_addr, &sinfo) < 0)
goto out_free;
- err = genlmsg_unicast(msg, info->snd_pid);
+ err = genlmsg_reply(msg, info);
goto out;
out_free:
@@ -2087,7 +2087,7 @@ static int nl80211_get_mpath(struct sk_buff *skb, struct genl_info *info)
dev, dst, next_hop, &pinfo) < 0)
goto out_free;
- err = genlmsg_unicast(msg, info->snd_pid);
+ err = genlmsg_reply(msg, info);
goto out;
out_free:
@@ -2436,7 +2436,7 @@ static int nl80211_get_mesh_params(struct sk_buff *skb,
cur_params.dot11MeshHWMPnetDiameterTraversalTime);
nla_nest_end(msg, pinfoattr);
genlmsg_end(msg, hdr);
- err = genlmsg_unicast(msg, info->snd_pid);
+ err = genlmsg_reply(msg, info);
goto out;
nla_put_failure:
@@ -2624,7 +2624,7 @@ static int nl80211_get_reg(struct sk_buff *skb, struct genl_info *info)
nla_nest_end(msg, nl_reg_rules);
genlmsg_end(msg, hdr);
- err = genlmsg_unicast(msg, info->snd_pid);
+ err = genlmsg_reply(msg, info);
goto out;
nla_put_failure: