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Diffstat (limited to 'net/ipv6/addrconf.c')
-rw-r--r--net/ipv6/addrconf.c123
1 files changed, 87 insertions, 36 deletions
diff --git a/net/ipv6/addrconf.c b/net/ipv6/addrconf.c
index 23cc8e1ce8d..5b189c97c2f 100644
--- a/net/ipv6/addrconf.c
+++ b/net/ipv6/addrconf.c
@@ -2669,8 +2669,9 @@ static int addrconf_ifdown(struct net_device *dev, int how)
ASSERT_RTNL();
- rt6_ifdown(net, dev);
- neigh_ifdown(&nd_tbl, dev);
+ /* Flush routes if device is being removed or it is not loopback */
+ if (how || !(dev->flags & IFF_LOOPBACK))
+ rt6_ifdown(net, dev);
idev = __in6_dev_get(dev);
if (idev == NULL)
@@ -3836,6 +3837,15 @@ static inline void ipv6_store_devconf(struct ipv6_devconf *cnf,
array[DEVCONF_FORCE_TLLAO] = cnf->force_tllao;
}
+static inline size_t inet6_ifla6_size(void)
+{
+ return nla_total_size(4) /* IFLA_INET6_FLAGS */
+ + nla_total_size(sizeof(struct ifla_cacheinfo))
+ + nla_total_size(DEVCONF_MAX * 4) /* IFLA_INET6_CONF */
+ + nla_total_size(IPSTATS_MIB_MAX * 8) /* IFLA_INET6_STATS */
+ + nla_total_size(ICMP6_MIB_MAX * 8); /* IFLA_INET6_ICMP6STATS */
+}
+
static inline size_t inet6_if_nlmsg_size(void)
{
return NLMSG_ALIGN(sizeof(struct ifinfomsg))
@@ -3843,13 +3853,7 @@ static inline size_t inet6_if_nlmsg_size(void)
+ nla_total_size(MAX_ADDR_LEN) /* IFLA_ADDRESS */
+ nla_total_size(4) /* IFLA_MTU */
+ nla_total_size(4) /* IFLA_LINK */
- + nla_total_size( /* IFLA_PROTINFO */
- nla_total_size(4) /* IFLA_INET6_FLAGS */
- + nla_total_size(sizeof(struct ifla_cacheinfo))
- + nla_total_size(DEVCONF_MAX * 4) /* IFLA_INET6_CONF */
- + nla_total_size(IPSTATS_MIB_MAX * 8) /* IFLA_INET6_STATS */
- + nla_total_size(ICMP6_MIB_MAX * 8) /* IFLA_INET6_ICMP6STATS */
- );
+ + nla_total_size(inet6_ifla6_size()); /* IFLA_PROTINFO */
}
static inline void __snmp6_fill_stats(u64 *stats, void __percpu **mib,
@@ -3896,15 +3900,70 @@ static void snmp6_fill_stats(u64 *stats, struct inet6_dev *idev, int attrtype,
}
}
+static int inet6_fill_ifla6_attrs(struct sk_buff *skb, struct inet6_dev *idev)
+{
+ struct nlattr *nla;
+ struct ifla_cacheinfo ci;
+
+ NLA_PUT_U32(skb, IFLA_INET6_FLAGS, idev->if_flags);
+
+ ci.max_reasm_len = IPV6_MAXPLEN;
+ ci.tstamp = cstamp_delta(idev->tstamp);
+ ci.reachable_time = jiffies_to_msecs(idev->nd_parms->reachable_time);
+ ci.retrans_time = jiffies_to_msecs(idev->nd_parms->retrans_time);
+ NLA_PUT(skb, IFLA_INET6_CACHEINFO, sizeof(ci), &ci);
+
+ nla = nla_reserve(skb, IFLA_INET6_CONF, DEVCONF_MAX * sizeof(s32));
+ if (nla == NULL)
+ goto nla_put_failure;
+ ipv6_store_devconf(&idev->cnf, nla_data(nla), nla_len(nla));
+
+ /* XXX - MC not implemented */
+
+ nla = nla_reserve(skb, IFLA_INET6_STATS, IPSTATS_MIB_MAX * sizeof(u64));
+ if (nla == NULL)
+ goto nla_put_failure;
+ snmp6_fill_stats(nla_data(nla), idev, IFLA_INET6_STATS, nla_len(nla));
+
+ nla = nla_reserve(skb, IFLA_INET6_ICMP6STATS, ICMP6_MIB_MAX * sizeof(u64));
+ if (nla == NULL)
+ goto nla_put_failure;
+ snmp6_fill_stats(nla_data(nla), idev, IFLA_INET6_ICMP6STATS, nla_len(nla));
+
+ return 0;
+
+nla_put_failure:
+ return -EMSGSIZE;
+}
+
+static size_t inet6_get_link_af_size(const struct net_device *dev)
+{
+ if (!__in6_dev_get(dev))
+ return 0;
+
+ return inet6_ifla6_size();
+}
+
+static int inet6_fill_link_af(struct sk_buff *skb, const struct net_device *dev)
+{
+ struct inet6_dev *idev = __in6_dev_get(dev);
+
+ if (!idev)
+ return -ENODATA;
+
+ if (inet6_fill_ifla6_attrs(skb, idev) < 0)
+ return -EMSGSIZE;
+
+ return 0;
+}
+
static int inet6_fill_ifinfo(struct sk_buff *skb, struct inet6_dev *idev,
u32 pid, u32 seq, int event, unsigned int flags)
{
struct net_device *dev = idev->dev;
- struct nlattr *nla;
struct ifinfomsg *hdr;
struct nlmsghdr *nlh;
void *protoinfo;
- struct ifla_cacheinfo ci;
nlh = nlmsg_put(skb, pid, seq, event, sizeof(*hdr), flags);
if (nlh == NULL)
@@ -3931,30 +3990,8 @@ static int inet6_fill_ifinfo(struct sk_buff *skb, struct inet6_dev *idev,
if (protoinfo == NULL)
goto nla_put_failure;
- NLA_PUT_U32(skb, IFLA_INET6_FLAGS, idev->if_flags);
-
- ci.max_reasm_len = IPV6_MAXPLEN;
- ci.tstamp = cstamp_delta(idev->tstamp);
- ci.reachable_time = jiffies_to_msecs(idev->nd_parms->reachable_time);
- ci.retrans_time = jiffies_to_msecs(idev->nd_parms->retrans_time);
- NLA_PUT(skb, IFLA_INET6_CACHEINFO, sizeof(ci), &ci);
-
- nla = nla_reserve(skb, IFLA_INET6_CONF, DEVCONF_MAX * sizeof(s32));
- if (nla == NULL)
- goto nla_put_failure;
- ipv6_store_devconf(&idev->cnf, nla_data(nla), nla_len(nla));
-
- /* XXX - MC not implemented */
-
- nla = nla_reserve(skb, IFLA_INET6_STATS, IPSTATS_MIB_MAX * sizeof(u64));
- if (nla == NULL)
+ if (inet6_fill_ifla6_attrs(skb, idev) < 0)
goto nla_put_failure;
- snmp6_fill_stats(nla_data(nla), idev, IFLA_INET6_STATS, nla_len(nla));
-
- nla = nla_reserve(skb, IFLA_INET6_ICMP6STATS, ICMP6_MIB_MAX * sizeof(u64));
- if (nla == NULL)
- goto nla_put_failure;
- snmp6_fill_stats(nla_data(nla), idev, IFLA_INET6_ICMP6STATS, nla_len(nla));
nla_nest_end(skb, protoinfo);
return nlmsg_end(skb, nlh);
@@ -4021,11 +4058,11 @@ void inet6_ifinfo_notify(int event, struct inet6_dev *idev)
kfree_skb(skb);
goto errout;
}
- rtnl_notify(skb, net, 0, RTNLGRP_IPV6_IFADDR, NULL, GFP_ATOMIC);
+ rtnl_notify(skb, net, 0, RTNLGRP_IPV6_IFINFO, NULL, GFP_ATOMIC);
return;
errout:
if (err < 0)
- rtnl_set_sk_err(net, RTNLGRP_IPV6_IFADDR, err);
+ rtnl_set_sk_err(net, RTNLGRP_IPV6_IFINFO, err);
}
static inline size_t inet6_prefix_nlmsg_size(void)
@@ -4625,6 +4662,12 @@ int unregister_inet6addr_notifier(struct notifier_block *nb)
}
EXPORT_SYMBOL(unregister_inet6addr_notifier);
+static struct rtnl_af_ops inet6_ops = {
+ .family = AF_INET6,
+ .fill_link_af = inet6_fill_link_af,
+ .get_link_af_size = inet6_get_link_af_size,
+};
+
/*
* Init / cleanup code
*/
@@ -4676,6 +4719,10 @@ int __init addrconf_init(void)
addrconf_verify(0);
+ err = rtnl_af_register(&inet6_ops);
+ if (err < 0)
+ goto errout_af;
+
err = __rtnl_register(PF_INET6, RTM_GETLINK, NULL, inet6_dump_ifinfo);
if (err < 0)
goto errout;
@@ -4691,6 +4738,8 @@ int __init addrconf_init(void)
return 0;
errout:
+ rtnl_af_unregister(&inet6_ops);
+errout_af:
unregister_netdevice_notifier(&ipv6_dev_notf);
errlo:
unregister_pernet_subsys(&addrconf_ops);
@@ -4711,6 +4760,8 @@ void addrconf_cleanup(void)
rtnl_lock();
+ __rtnl_af_unregister(&inet6_ops);
+
/* clean dev list */
for_each_netdev(&init_net, dev) {
if (__in6_dev_get(dev) == NULL)
generated by cgit v1.2.3-70-g09d2 (git 2.46.0) at 2024-11-23 08:33:46 +0000