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Message-Id: <1199901880-6812-10-git-send-email-den@openvz.org>
Date: Wed, 9 Jan 2008 21:04:31 +0300
From: "Denis V. Lunev" <den@...nvz.org>
To: davem@...emloft.net
Cc: netdev@...r.kernel.org, devel@...nvz.org, xemul@...nvz.org,
dlezcano@...ibm.com, containers@...ts.osdl.org,
benjamin.thery@...l.net
Subject: [PATCH net-2.6.25 10/19] [NETNS] Add netns to nl_info structure.
nl_info is used to track the end-user destination of routing change
notification. This is a natural object to hold a namespace on. Place it
there and utilize the context in the appropriate places.
Acked-by: Benjamin Thery <benjamin.thery@...l.net>
Acked-by: Daniel Lezcano <dlezcano@...ibm.com>
Signed-off-by: Denis V. Lunev <den@...nvz.org>
---
include/net/netlink.h | 1 +
net/ipv4/fib_frontend.c | 5 +++++
net/ipv4/fib_semantics.c | 16 ++++++++++------
net/ipv6/ip6_fib.c | 4 +++-
net/ipv6/route.c | 8 ++++++--
5 files changed, 25 insertions(+), 9 deletions(-)
diff --git a/include/net/netlink.h b/include/net/netlink.h
index db4b935..87cf0bc 100644
--- a/include/net/netlink.h
+++ b/include/net/netlink.h
@@ -217,6 +217,7 @@ struct nla_policy {
*/
struct nl_info {
struct nlmsghdr *nlh;
+ struct net *nl_net;
u32 pid;
};
diff --git a/net/ipv4/fib_frontend.c b/net/ipv4/fib_frontend.c
index 312a728..08414eb 100644
--- a/net/ipv4/fib_frontend.c
+++ b/net/ipv4/fib_frontend.c
@@ -310,6 +310,7 @@ static int rtentry_to_fib_config(int cmd, struct rtentry *rt,
int plen;
memset(cfg, 0, sizeof(*cfg));
+ cfg->fc_nlinfo.nl_net = &init_net;
if (rt->rt_dst.sa_family != AF_INET)
return -EAFNOSUPPORT;
@@ -516,6 +517,7 @@ static int rtm_to_fib_config(struct sk_buff *skb, struct nlmsghdr *nlh,
cfg->fc_nlinfo.pid = NETLINK_CB(skb).pid;
cfg->fc_nlinfo.nlh = nlh;
+ cfg->fc_nlinfo.nl_net = &init_net;
if (cfg->fc_type > RTN_MAX) {
err = -EINVAL;
@@ -670,6 +672,9 @@ static void fib_magic(int cmd, int type, __be32 dst, int dst_len, struct in_ifad
.fc_prefsrc = ifa->ifa_local,
.fc_oif = ifa->ifa_dev->dev->ifindex,
.fc_nlflags = NLM_F_CREATE | NLM_F_APPEND,
+ .fc_nlinfo = {
+ .nl_net = &init_net,
+ },
};
if (type == RTN_UNICAST)
diff --git a/net/ipv4/fib_semantics.c b/net/ipv4/fib_semantics.c
index c1263e2..0de6102 100644
--- a/net/ipv4/fib_semantics.c
+++ b/net/ipv4/fib_semantics.c
@@ -320,11 +320,11 @@ void rtmsg_fib(int event, __be32 key, struct fib_alias *fa,
kfree_skb(skb);
goto errout;
}
- err = rtnl_notify(skb, &init_net, info->pid, RTNLGRP_IPV4_ROUTE,
+ err = rtnl_notify(skb, info->nl_net, info->pid, RTNLGRP_IPV4_ROUTE,
info->nlh, GFP_KERNEL);
errout:
if (err < 0)
- rtnl_set_sk_err(&init_net, RTNLGRP_IPV4_ROUTE, err);
+ rtnl_set_sk_err(info->nl_net, RTNLGRP_IPV4_ROUTE, err);
}
/* Return the first fib alias matching TOS with
@@ -531,9 +531,11 @@ static int fib_check_nh(struct fib_config *cfg, struct fib_info *fi,
if (cfg->fc_scope >= RT_SCOPE_LINK)
return -EINVAL;
- if (inet_addr_type(&init_net, nh->nh_gw) != RTN_UNICAST)
+ if (inet_addr_type(cfg->fc_nlinfo.nl_net,
+ nh->nh_gw) != RTN_UNICAST)
return -EINVAL;
- if ((dev = __dev_get_by_index(&init_net, nh->nh_oif)) == NULL)
+ if ((dev = __dev_get_by_index(cfg->fc_nlinfo.nl_net,
+ nh->nh_oif)) == NULL)
return -ENODEV;
if (!(dev->flags&IFF_UP))
return -ENETDOWN;
@@ -795,7 +797,8 @@ struct fib_info *fib_create_info(struct fib_config *cfg)
if (nhs != 1 || nh->nh_gw)
goto err_inval;
nh->nh_scope = RT_SCOPE_NOWHERE;
- nh->nh_dev = dev_get_by_index(&init_net, fi->fib_nh->nh_oif);
+ nh->nh_dev = dev_get_by_index(cfg->fc_nlinfo.nl_net,
+ fi->fib_nh->nh_oif);
err = -ENODEV;
if (nh->nh_dev == NULL)
goto failure;
@@ -809,7 +812,8 @@ struct fib_info *fib_create_info(struct fib_config *cfg)
if (fi->fib_prefsrc) {
if (cfg->fc_type != RTN_LOCAL || !cfg->fc_dst ||
fi->fib_prefsrc != cfg->fc_dst)
- if (inet_addr_type(&init_net, fi->fib_prefsrc) != RTN_LOCAL)
+ if (inet_addr_type(cfg->fc_nlinfo.nl_net,
+ fi->fib_prefsrc) != RTN_LOCAL)
goto err_inval;
}
diff --git a/net/ipv6/ip6_fib.c b/net/ipv6/ip6_fib.c
index df05c6f..242a8ca 100644
--- a/net/ipv6/ip6_fib.c
+++ b/net/ipv6/ip6_fib.c
@@ -1315,7 +1315,9 @@ static int fib6_walk(struct fib6_walker_t *w)
static int fib6_clean_node(struct fib6_walker_t *w)
{
- struct nl_info info = {};
+ struct nl_info info = {
+ .nl_net = &init_net,
+ };
int res;
struct rt6_info *rt;
struct fib6_cleaner_t *c = container_of(w, struct fib6_cleaner_t, w);
diff --git a/net/ipv6/route.c b/net/ipv6/route.c
index 02354a7..7f03ae9 100644
--- a/net/ipv6/route.c
+++ b/net/ipv6/route.c
@@ -604,7 +604,9 @@ static int __ip6_ins_rt(struct rt6_info *rt, struct nl_info *info)
int ip6_ins_rt(struct rt6_info *rt)
{
- struct nl_info info = {};
+ struct nl_info info = {
+ .nl_net = &init_net,
+ };
return __ip6_ins_rt(rt, &info);
}
@@ -1262,7 +1264,9 @@ static int __ip6_del_rt(struct rt6_info *rt, struct nl_info *info)
int ip6_del_rt(struct rt6_info *rt)
{
- struct nl_info info = {};
+ struct nl_info info = {
+ .nl_net = &init_net,
+ };
return __ip6_del_rt(rt, &info);
}
--
1.5.3.rc5
--
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