[Devel] [PATCH RFC 24/31] net: Make rtnetlink network namespace aware
Eric W. Biederman
ebiederm at xmission.com
Thu Jan 25 11:00:26 PST 2007
From: Eric W. Biederman <ebiederm at xmission.com> - unquoted
After this patch none of the netlink callback support anything
except the initial network namespace but the rtnetlink infrastructure
now handles multiple network namespaces.
Signed-off-by: Eric W. Biederman <ebiederm at xmission.com>
---
include/linux/rtnetlink.h | 8 ++--
net/bridge/br_netlink.c | 4 +-
net/core/fib_rules.c | 4 +-
net/core/neighbour.c | 4 +-
net/core/rtnetlink.c | 74 +++++++++++++++++++++++++++++++++++---------
net/core/wireless.c | 5 ++-
net/decnet/dn_dev.c | 4 +-
net/decnet/dn_route.c | 2 +-
net/decnet/dn_table.c | 4 +-
net/ipv4/devinet.c | 4 +-
net/ipv4/fib_semantics.c | 4 +-
net/ipv4/ipmr.c | 4 +-
net/ipv4/route.c | 2 +-
net/ipv6/addrconf.c | 14 ++++----
net/ipv6/route.c | 6 ++--
net/sched/cls_api.c | 2 +-
net/sched/sch_api.c | 4 +-
17 files changed, 98 insertions(+), 51 deletions(-)
diff --git a/include/linux/rtnetlink.h b/include/linux/rtnetlink.h
index 4a629ea..6c8281d 100644
--- a/include/linux/rtnetlink.h
+++ b/include/linux/rtnetlink.h
@@ -581,11 +581,11 @@ struct rtnetlink_link
};
extern struct rtnetlink_link * rtnetlink_links[NPROTO];
-extern int rtnetlink_send(struct sk_buff *skb, u32 pid, u32 group, int echo);
-extern int rtnl_unicast(struct sk_buff *skb, u32 pid);
-extern int rtnl_notify(struct sk_buff *skb, u32 pid, u32 group,
+extern int rtnetlink_send(struct sk_buff *skb, net_t net, u32 pid, u32 group, int echo);
+extern int rtnl_unicast(struct sk_buff *skb, net_t net, u32 pid);
+extern int rtnl_notify(struct sk_buff *skb, net_t net, u32 pid, u32 group,
struct nlmsghdr *nlh, gfp_t flags);
-extern void rtnl_set_sk_err(u32 group, int error);
+extern void rtnl_set_sk_err(net_t net, u32 group, int error);
extern int rtnetlink_put_metrics(struct sk_buff *skb, u32 *metrics);
extern int rtnl_put_cacheinfo(struct sk_buff *skb, struct dst_entry *dst,
u32 id, u32 ts, u32 tsage, long expires,
diff --git a/net/bridge/br_netlink.c b/net/bridge/br_netlink.c
index 85165a1..372fb18 100644
--- a/net/bridge/br_netlink.c
+++ b/net/bridge/br_netlink.c
@@ -94,10 +94,10 @@ void br_ifinfo_notify(int event, struct net_bridge_port *port)
/* failure implies BUG in br_nlmsg_size() */
BUG_ON(err < 0);
- err = rtnl_notify(skb, 0, RTNLGRP_LINK, NULL, GFP_ATOMIC);
+ err = rtnl_notify(skb, init_net(), 0, RTNLGRP_LINK, NULL, GFP_ATOMIC);
errout:
if (err < 0)
- rtnl_set_sk_err(RTNLGRP_LINK, err);
+ rtnl_set_sk_err(init_net(), RTNLGRP_LINK, err);
}
/*
diff --git a/net/core/fib_rules.c b/net/core/fib_rules.c
index 00b4148..5f65973 100644
--- a/net/core/fib_rules.c
+++ b/net/core/fib_rules.c
@@ -418,10 +418,10 @@ static void notify_rule_change(int event, struct fib_rule *rule,
/* failure implies BUG in fib_rule_nlmsg_size() */
BUG_ON(err < 0);
- err = rtnl_notify(skb, pid, ops->nlgroup, nlh, GFP_KERNEL);
+ err = rtnl_notify(skb, init_net(), pid, ops->nlgroup, nlh, GFP_KERNEL);
errout:
if (err < 0)
- rtnl_set_sk_err(ops->nlgroup, err);
+ rtnl_set_sk_err(init_net(), ops->nlgroup, err);
}
static void attach_rules(struct list_head *rules, struct net_device *dev)
diff --git a/net/core/neighbour.c b/net/core/neighbour.c
index d89c6fe..6f61207 100644
--- a/net/core/neighbour.c
+++ b/net/core/neighbour.c
@@ -2453,10 +2453,10 @@ static void __neigh_notify(struct neighbour *n, int type, int flags)
/* failure implies BUG in neigh_nlmsg_size() */
BUG_ON(err < 0);
- err = rtnl_notify(skb, 0, RTNLGRP_NEIGH, NULL, GFP_ATOMIC);
+ err = rtnl_notify(skb, init_net(), 0, RTNLGRP_NEIGH, NULL, GFP_ATOMIC);
errout:
if (err < 0)
- rtnl_set_sk_err(RTNLGRP_NEIGH, err);
+ rtnl_set_sk_err(init_net(), RTNLGRP_NEIGH, err);
}
void neigh_app_ns(struct neighbour *n)
diff --git a/net/core/rtnetlink.c b/net/core/rtnetlink.c
index 9be586c..29a81bf 100644
--- a/net/core/rtnetlink.c
+++ b/net/core/rtnetlink.c
@@ -58,7 +58,7 @@
#endif /* CONFIG_NET_WIRELESS_RTNETLINK */
static DEFINE_MUTEX(rtnl_mutex);
-static struct sock *rtnl;
+static DEFINE_PER_NET(struct sock *, rtnl);
void rtnl_lock(void)
{
@@ -72,9 +72,17 @@ void __rtnl_unlock(void)
void rtnl_unlock(void)
{
+ net_t net;
mutex_unlock(&rtnl_mutex);
- if (rtnl && rtnl->sk_receive_queue.qlen)
- rtnl->sk_data_ready(rtnl, 0);
+
+ net_lock();
+ for_each_net(net) {
+ struct sock *rtnl = per_net(rtnl, net);
+ if (rtnl && rtnl->sk_receive_queue.qlen)
+ rtnl->sk_data_ready(rtnl, 0);
+ }
+ net_unlock();
+
netdev_run_todo();
}
@@ -151,8 +159,9 @@ size_t rtattr_strlcpy(char *dest, const struct rtattr *rta, size_t size)
return ret;
}
-int rtnetlink_send(struct sk_buff *skb, u32 pid, unsigned group, int echo)
+int rtnetlink_send(struct sk_buff *skb, net_t net, u32 pid, unsigned group, int echo)
{
+ struct sock *rtnl = per_net(rtnl, net);
int err = 0;
NETLINK_CB(skb).dst_group = group;
@@ -164,14 +173,17 @@ int rtnetlink_send(struct sk_buff *skb, u32 pid, unsigned group, int echo)
return err;
}
-int rtnl_unicast(struct sk_buff *skb, u32 pid)
+int rtnl_unicast(struct sk_buff *skb, net_t net, u32 pid)
{
+ struct sock *rtnl = per_net(rtnl, net);
+
return nlmsg_unicast(rtnl, skb, pid);
}
-int rtnl_notify(struct sk_buff *skb, u32 pid, u32 group,
+int rtnl_notify(struct sk_buff *skb, net_t net, u32 pid, u32 group,
struct nlmsghdr *nlh, gfp_t flags)
{
+ struct sock *rtnl = per_net(rtnl, net);
int report = 0;
if (nlh)
@@ -180,8 +192,10 @@ int rtnl_notify(struct sk_buff *skb, u32 pid, u32 group,
return nlmsg_notify(rtnl, skb, pid, group, report, flags);
}
-void rtnl_set_sk_err(u32 group, int error)
+void rtnl_set_sk_err(net_t net, u32 group, int error)
{
+ struct sock *rtnl = per_net(rtnl, net);
+
netlink_set_err(rtnl, 0, group, error);
}
@@ -649,7 +663,7 @@ static int rtnl_getlink(struct sk_buff *skb, struct nlmsghdr* nlh, void *arg)
/* failure impilies BUG in if_nlmsg_size or wireless_rtnetlink_get */
BUG_ON(err < 0);
- err = rtnl_unicast(nskb, NETLINK_CB(skb).pid);
+ err = rtnl_unicast(nskb, net, NETLINK_CB(skb).pid);
errout:
kfree(iw_buf);
dev_put(dev);
@@ -698,10 +712,10 @@ void rtmsg_ifinfo(int type, struct net_device *dev, unsigned change)
/* failure implies BUG in if_nlmsg_size() */
BUG_ON(err < 0);
- err = rtnl_notify(skb, 0, RTNLGRP_LINK, NULL, GFP_KERNEL);
+ err = rtnl_notify(skb, init_net(), 0, RTNLGRP_LINK, NULL, GFP_KERNEL);
errout:
if (err < 0)
- rtnl_set_sk_err(RTNLGRP_LINK, err);
+ rtnl_set_sk_err(init_net(), RTNLGRP_LINK, err);
}
/* Protected by RTNL sempahore. */
@@ -713,6 +727,7 @@ static int rtattr_max;
static __inline__ int
rtnetlink_rcv_msg(struct sk_buff *skb, struct nlmsghdr *nlh, int *errp)
{
+ net_t net = skb->sk->sk_net;
struct rtnetlink_link *link;
struct rtnetlink_link *link_tab;
int sz_idx, kind;
@@ -767,7 +782,7 @@ rtnetlink_rcv_msg(struct sk_buff *skb, struct nlmsghdr *nlh, int *errp)
if (link->dumpit == NULL)
goto err_inval;
- if ((*errp = netlink_dump_start(rtnl, skb, nlh,
+ if ((*errp = netlink_dump_start(per_net(rtnl, net), skb, nlh,
link->dumpit, NULL)) != 0) {
return -1;
}
@@ -875,6 +890,36 @@ static struct notifier_block rtnetlink_dev_notifier = {
.notifier_call = rtnetlink_event,
};
+
+static int rtnetlink_net_init(net_t net)
+{
+ struct sock *sk;
+ sk = netlink_kernel_create(net, NETLINK_ROUTE, RTNLGRP_MAX,
+ rtnetlink_rcv, THIS_MODULE);
+ if (!sk)
+ return -ENOMEM;
+
+ /* Don't hold an extra reference on the namespace */
+ put_net(sk->sk_net);
+ per_net(rtnl, net) = sk;
+ return 0;
+}
+
+static void rtnetlink_net_exit(net_t net)
+{
+ /* At the last minute lie and say this is a socket for the
+ * initial network namespace. So the socket will be safe to
+ * free.
+ */
+ per_net(rtnl, net)->sk_net = get_net(init_net());
+ sock_put(per_net(rtnl, net));
+}
+
+static struct pernet_operations rtnetlink_net_ops = {
+ .init = rtnetlink_net_init,
+ .exit = rtnetlink_net_exit,
+};
+
void __init rtnetlink_init(void)
{
int i;
@@ -887,10 +932,9 @@ void __init rtnetlink_init(void)
if (!rta_buf)
panic("rtnetlink_init: cannot allocate rta_buf\n");
- rtnl = netlink_kernel_create(init_net(), NETLINK_ROUTE, RTNLGRP_MAX,
- rtnetlink_rcv, THIS_MODULE);
- if (rtnl == NULL)
- panic("rtnetlink_init: cannot initialize rtnetlink\n");
+ if (register_pernet_subsys(&rtnetlink_net_ops))
+ panic("rtnetlink_init: cannot initialize rtnetlink\n");
+
netlink_set_nonroot(NETLINK_ROUTE, NL_NONROOT_RECV);
register_netdevice_notifier(&rtnetlink_dev_notifier);
rtnetlink_links[PF_UNSPEC] = link_rtnetlink_table;
diff --git a/net/core/wireless.c b/net/core/wireless.c
index d1418bf..9036359 100644
--- a/net/core/wireless.c
+++ b/net/core/wireless.c
@@ -1935,7 +1935,7 @@ static void wireless_nlevent_process(unsigned long data)
struct sk_buff *skb;
while ((skb = skb_dequeue(&wireless_nlevent_queue)))
- rtnl_notify(skb, 0, RTNLGRP_LINK, NULL, GFP_ATOMIC);
+ rtnl_notify(skb, init_net(), 0, RTNLGRP_LINK, NULL, GFP_ATOMIC);
}
static DECLARE_TASKLET(wireless_nlevent_tasklet, wireless_nlevent_process, 0);
@@ -1992,6 +1992,9 @@ static inline void rtmsg_iwinfo(struct net_device * dev,
struct sk_buff *skb;
int size = NLMSG_GOODSIZE;
+ if (!net_eq(dev->nd_net, init_net()))
+ return;
+
skb = alloc_skb(size, GFP_ATOMIC);
if (!skb)
return;
diff --git a/net/decnet/dn_dev.c b/net/decnet/dn_dev.c
index a09275b..bad972d 100644
--- a/net/decnet/dn_dev.c
+++ b/net/decnet/dn_dev.c
@@ -788,10 +788,10 @@ static void dn_ifaddr_notify(int event, struct dn_ifaddr *ifa)
/* failure implies BUG in dn_ifaddr_nlmsg_size() */
BUG_ON(err < 0);
- err = rtnl_notify(skb, 0, RTNLGRP_DECnet_IFADDR, NULL, GFP_KERNEL);
+ err = rtnl_notify(skb, init_net(), 0, RTNLGRP_DECnet_IFADDR, NULL, GFP_KERNEL);
errout:
if (err < 0)
- rtnl_set_sk_err(RTNLGRP_DECnet_IFADDR, err);
+ rtnl_set_sk_err(init_net(), RTNLGRP_DECnet_IFADDR, err);
}
static int dn_nl_dump_ifaddr(struct sk_buff *skb, struct netlink_callback *cb)
diff --git a/net/decnet/dn_route.c b/net/decnet/dn_route.c
index d942ea0..4b353d4 100644
--- a/net/decnet/dn_route.c
+++ b/net/decnet/dn_route.c
@@ -1604,7 +1604,7 @@ int dn_cache_getroute(struct sk_buff *in_skb, struct nlmsghdr *nlh, void *arg)
goto out_free;
}
- return rtnl_unicast(skb, NETLINK_CB(in_skb).pid);
+ return rtnl_unicast(skb, init_net(), NETLINK_CB(in_skb).pid);
out_free:
kfree_skb(skb);
diff --git a/net/decnet/dn_table.c b/net/decnet/dn_table.c
index 3ff151c..4090ab5 100644
--- a/net/decnet/dn_table.c
+++ b/net/decnet/dn_table.c
@@ -371,10 +371,10 @@ static void dn_rtmsg_fib(int event, struct dn_fib_node *f, int z, u32 tb_id,
/* failure implies BUG in dn_fib_nlmsg_size() */
BUG_ON(err < 0);
- err = rtnl_notify(skb, pid, RTNLGRP_DECnet_ROUTE, nlh, GFP_KERNEL);
+ err = rtnl_notify(skb, init_net(), pid, RTNLGRP_DECnet_ROUTE, nlh, GFP_KERNEL);
errout:
if (err < 0)
- rtnl_set_sk_err(RTNLGRP_DECnet_ROUTE, err);
+ rtnl_set_sk_err(init_net(), RTNLGRP_DECnet_ROUTE, err);
}
static __inline__ int dn_hash_dump_bucket(struct sk_buff *skb,
diff --git a/net/ipv4/devinet.c b/net/ipv4/devinet.c
index 7769b1c..59acce2 100644
--- a/net/ipv4/devinet.c
+++ b/net/ipv4/devinet.c
@@ -1241,10 +1241,10 @@ static void rtmsg_ifa(int event, struct in_ifaddr* ifa, struct nlmsghdr *nlh,
/* failure implies BUG in inet_nlmsg_size() */
BUG_ON(err < 0);
- err = rtnl_notify(skb, pid, RTNLGRP_IPV4_IFADDR, nlh, GFP_KERNEL);
+ err = rtnl_notify(skb, init_net(), pid, RTNLGRP_IPV4_IFADDR, nlh, GFP_KERNEL);
errout:
if (err < 0)
- rtnl_set_sk_err(RTNLGRP_IPV4_IFADDR, err);
+ rtnl_set_sk_err(init_net(), RTNLGRP_IPV4_IFADDR, err);
}
static struct rtnetlink_link inet_rtnetlink_table[RTM_NR_MSGTYPES] = {
diff --git a/net/ipv4/fib_semantics.c b/net/ipv4/fib_semantics.c
index 76218e5..8c64334 100644
--- a/net/ipv4/fib_semantics.c
+++ b/net/ipv4/fib_semantics.c
@@ -317,11 +317,11 @@ void rtmsg_fib(int event, __be32 key, struct fib_alias *fa,
/* failure implies BUG in fib_nlmsg_size() */
BUG_ON(err < 0);
- err = rtnl_notify(skb, info->pid, RTNLGRP_IPV4_ROUTE,
+ err = rtnl_notify(skb, init_net(), info->pid, RTNLGRP_IPV4_ROUTE,
info->nlh, GFP_KERNEL);
errout:
if (err < 0)
- rtnl_set_sk_err(RTNLGRP_IPV4_ROUTE, err);
+ rtnl_set_sk_err(init_net(), RTNLGRP_IPV4_ROUTE, err);
}
/* Return the first fib alias matching TOS with
diff --git a/net/ipv4/ipmr.c b/net/ipv4/ipmr.c
index d2e7e55..15e0eb4 100644
--- a/net/ipv4/ipmr.c
+++ b/net/ipv4/ipmr.c
@@ -314,7 +314,7 @@ static void ipmr_destroy_unres(struct mfc_cache *c)
e->error = -ETIMEDOUT;
memset(&e->msg, 0, sizeof(e->msg));
- rtnl_unicast(skb, NETLINK_CB(skb).pid);
+ rtnl_unicast(skb, init_net(), NETLINK_CB(skb).pid);
} else
kfree_skb(skb);
}
@@ -527,7 +527,7 @@ static void ipmr_cache_resolve(struct mfc_cache *uc, struct mfc_cache *c)
memset(&e->msg, 0, sizeof(e->msg));
}
- rtnl_unicast(skb, NETLINK_CB(skb).pid);
+ rtnl_unicast(skb, init_net(), NETLINK_CB(skb).pid);
} else
ip_mr_forward(skb, c, 0);
}
diff --git a/net/ipv4/route.c b/net/ipv4/route.c
index 509bfb1..5f8592e 100644
--- a/net/ipv4/route.c
+++ b/net/ipv4/route.c
@@ -2802,7 +2802,7 @@ int inet_rtm_getroute(struct sk_buff *in_skb, struct nlmsghdr* nlh, void *arg)
if (err <= 0)
goto errout_free;
- err = rtnl_unicast(skb, NETLINK_CB(in_skb).pid);
+ err = rtnl_unicast(skb, init_net(), NETLINK_CB(in_skb).pid);
errout:
return err;
diff --git a/net/ipv6/addrconf.c b/net/ipv6/addrconf.c
index 83b7312..597bc10 100644
--- a/net/ipv6/addrconf.c
+++ b/net/ipv6/addrconf.c
@@ -3362,7 +3362,7 @@ static int inet6_rtm_getaddr(struct sk_buff *in_skb, struct nlmsghdr* nlh,
/* failure implies BUG in inet6_ifaddr_msgsize() */
BUG_ON(err < 0);
- err = rtnl_unicast(skb, NETLINK_CB(in_skb).pid);
+ err = rtnl_unicast(skb, init_net(), NETLINK_CB(in_skb).pid);
errout_ifa:
in6_ifa_put(ifa);
errout:
@@ -3382,10 +3382,10 @@ static void inet6_ifa_notify(int event, struct inet6_ifaddr *ifa)
/* failure implies BUG in inet6_ifaddr_msgsize() */
BUG_ON(err < 0);
- err = rtnl_notify(skb, 0, RTNLGRP_IPV6_IFADDR, NULL, GFP_ATOMIC);
+ err = rtnl_notify(skb, init_net(), 0, RTNLGRP_IPV6_IFADDR, NULL, GFP_ATOMIC);
errout:
if (err < 0)
- rtnl_set_sk_err(RTNLGRP_IPV6_IFADDR, err);
+ rtnl_set_sk_err(init_net(), RTNLGRP_IPV6_IFADDR, err);
}
static void inline ipv6_store_devconf(struct ipv6_devconf *cnf,
@@ -3539,10 +3539,10 @@ void inet6_ifinfo_notify(int event, struct inet6_dev *idev)
/* failure implies BUG in inet6_if_nlmsg_size() */
BUG_ON(err < 0);
- err = rtnl_notify(skb, 0, RTNLGRP_IPV6_IFADDR, NULL, GFP_ATOMIC);
+ err = rtnl_notify(skb, init_net(), 0, RTNLGRP_IPV6_IFADDR, NULL, GFP_ATOMIC);
errout:
if (err < 0)
- rtnl_set_sk_err(RTNLGRP_IPV6_IFADDR, err);
+ rtnl_set_sk_err(init_net(), RTNLGRP_IPV6_IFADDR, err);
}
static inline size_t inet6_prefix_nlmsg_size(void)
@@ -3604,10 +3604,10 @@ static void inet6_prefix_notify(int event, struct inet6_dev *idev,
/* failure implies BUG in inet6_prefix_nlmsg_size() */
BUG_ON(err < 0);
- err = rtnl_notify(skb, 0, RTNLGRP_IPV6_PREFIX, NULL, GFP_ATOMIC);
+ err = rtnl_notify(skb, init_net(), 0, RTNLGRP_IPV6_PREFIX, NULL, GFP_ATOMIC);
errout:
if (err < 0)
- rtnl_set_sk_err(RTNLGRP_IPV6_PREFIX, err);
+ rtnl_set_sk_err(init_net(), RTNLGRP_IPV6_PREFIX, err);
}
static struct rtnetlink_link inet6_rtnetlink_table[RTM_NR_MSGTYPES] = {
diff --git a/net/ipv6/route.c b/net/ipv6/route.c
index 02fd8ae..cf568f6 100644
--- a/net/ipv6/route.c
+++ b/net/ipv6/route.c
@@ -2210,7 +2210,7 @@ int inet6_rtm_getroute(struct sk_buff *in_skb, struct nlmsghdr* nlh, void *arg)
goto errout;
}
- err = rtnl_unicast(skb, NETLINK_CB(in_skb).pid);
+ err = rtnl_unicast(skb, init_net(), NETLINK_CB(in_skb).pid);
errout:
return err;
}
@@ -2237,10 +2237,10 @@ void inet6_rt_notify(int event, struct rt6_info *rt, struct nl_info *info)
/* failure implies BUG in rt6_nlmsg_size() */
BUG_ON(err < 0);
- err = rtnl_notify(skb, pid, RTNLGRP_IPV6_ROUTE, nlh, gfp_any());
+ err = rtnl_notify(skb, init_net(), pid, RTNLGRP_IPV6_ROUTE, nlh, gfp_any());
errout:
if (err < 0)
- rtnl_set_sk_err(RTNLGRP_IPV6_ROUTE, err);
+ rtnl_set_sk_err(init_net(), RTNLGRP_IPV6_ROUTE, err);
}
/*
diff --git a/net/sched/cls_api.c b/net/sched/cls_api.c
index 09a3ec8..c69b4fc 100644
--- a/net/sched/cls_api.c
+++ b/net/sched/cls_api.c
@@ -369,7 +369,7 @@ static int tfilter_notify(struct sk_buff *oskb, struct nlmsghdr *n,
return -EINVAL;
}
- return rtnetlink_send(skb, pid, RTNLGRP_TC, n->nlmsg_flags&NLM_F_ECHO);
+ return rtnetlink_send(skb, init_net(), pid, RTNLGRP_TC, n->nlmsg_flags&NLM_F_ECHO);
}
struct tcf_dump_args
diff --git a/net/sched/sch_api.c b/net/sched/sch_api.c
index 7e33f73..ae55988 100644
--- a/net/sched/sch_api.c
+++ b/net/sched/sch_api.c
@@ -850,7 +850,7 @@ static int qdisc_notify(struct sk_buff *oskb, struct nlmsghdr *n,
}
if (skb->len)
- return rtnetlink_send(skb, pid, RTNLGRP_TC, n->nlmsg_flags&NLM_F_ECHO);
+ return rtnetlink_send(skb, init_net(), pid, RTNLGRP_TC, n->nlmsg_flags&NLM_F_ECHO);
err_out:
kfree_skb(skb);
@@ -1082,7 +1082,7 @@ static int tclass_notify(struct sk_buff *oskb, struct nlmsghdr *n,
return -EINVAL;
}
- return rtnetlink_send(skb, pid, RTNLGRP_TC, n->nlmsg_flags&NLM_F_ECHO);
+ return rtnetlink_send(skb, init_net(), pid, RTNLGRP_TC, n->nlmsg_flags&NLM_F_ECHO);
}
struct qdisc_dump_args
--
1.4.4.1.g278f
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