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Diffstat (limited to 'net/core/rtnetlink.c')
-rw-r--r--net/core/rtnetlink.c55
1 files changed, 35 insertions, 20 deletions
diff --git a/net/core/rtnetlink.c b/net/core/rtnetlink.c
index 334b930e0de..76d4c2c3c89 100644
--- a/net/core/rtnetlink.c
+++ b/net/core/rtnetlink.c
@@ -618,16 +618,20 @@ int rtnl_put_cacheinfo(struct sk_buff *skb, struct dst_entry *dst, u32 id,
long expires, u32 error)
{
struct rta_cacheinfo ci = {
- .rta_lastuse = jiffies_to_clock_t(jiffies - dst->lastuse),
+ .rta_lastuse = jiffies_delta_to_clock_t(jiffies - dst->lastuse),
.rta_used = dst->__use,
.rta_clntref = atomic_read(&(dst->__refcnt)),
.rta_error = error,
.rta_id = id,
};
- if (expires)
- ci.rta_expires = jiffies_to_clock_t(expires);
+ if (expires) {
+ unsigned long clock;
+ clock = jiffies_to_clock_t(abs(expires));
+ clock = min_t(unsigned long, clock, INT_MAX);
+ ci.rta_expires = (expires > 0) ? clock : -clock;
+ }
return nla_put(skb, RTA_CACHEINFO, sizeof(ci), &ci);
}
EXPORT_SYMBOL_GPL(rtnl_put_cacheinfo);
@@ -659,6 +663,12 @@ static void set_operstate(struct net_device *dev, unsigned char transition)
}
}
+static unsigned int rtnl_dev_get_flags(const struct net_device *dev)
+{
+ return (dev->flags & ~(IFF_PROMISC | IFF_ALLMULTI)) |
+ (dev->gflags & (IFF_PROMISC | IFF_ALLMULTI));
+}
+
static unsigned int rtnl_dev_combine_flags(const struct net_device *dev,
const struct ifinfomsg *ifm)
{
@@ -667,7 +677,7 @@ static unsigned int rtnl_dev_combine_flags(const struct net_device *dev,
/* bugwards compatibility: ifi_change == 0 is treated as ~0 */
if (ifm->ifi_change)
flags = (flags & ifm->ifi_change) |
- (dev->flags & ~ifm->ifi_change);
+ (rtnl_dev_get_flags(dev) & ~ifm->ifi_change);
return flags;
}
@@ -1071,7 +1081,7 @@ static int rtnl_dump_ifinfo(struct sk_buff *skb, struct netlink_callback *cb)
if (idx < s_idx)
goto cont;
if (rtnl_fill_ifinfo(skb, dev, RTM_NEWLINK,
- NETLINK_CB(cb->skb).pid,
+ NETLINK_CB(cb->skb).portid,
cb->nlh->nlmsg_seq, 0,
NLM_F_MULTI,
ext_filter_mask) <= 0)
@@ -1371,6 +1381,7 @@ static int do_setlink(struct net_device *dev, struct ifinfomsg *ifm,
goto errout;
send_addr_notify = 1;
modified = 1;
+ add_device_randomness(dev->dev_addr, dev->addr_len);
}
if (tb[IFLA_MTU]) {
@@ -1801,8 +1812,6 @@ replay:
return -ENODEV;
}
- if (ifm->ifi_index)
- return -EOPNOTSUPP;
if (tb[IFLA_MAP] || tb[IFLA_MASTER] || tb[IFLA_PROTINFO])
return -EOPNOTSUPP;
@@ -1828,10 +1837,14 @@ replay:
return PTR_ERR(dest_net);
dev = rtnl_create_link(net, dest_net, ifname, ops, tb);
-
- if (IS_ERR(dev))
+ if (IS_ERR(dev)) {
err = PTR_ERR(dev);
- else if (ops->newlink)
+ goto out;
+ }
+
+ dev->ifindex = ifm->ifi_index;
+
+ if (ops->newlink)
err = ops->newlink(net, dev, tb, data);
else
err = register_netdevice(dev);
@@ -1886,14 +1899,14 @@ static int rtnl_getlink(struct sk_buff *skb, struct nlmsghdr* nlh, void *arg)
if (nskb == NULL)
return -ENOBUFS;
- err = rtnl_fill_ifinfo(nskb, dev, RTM_NEWLINK, NETLINK_CB(skb).pid,
+ err = rtnl_fill_ifinfo(nskb, dev, RTM_NEWLINK, NETLINK_CB(skb).portid,
nlh->nlmsg_seq, 0, 0, ext_filter_mask);
if (err < 0) {
/* -EMSGSIZE implies BUG in if_nlmsg_size */
WARN_ON(err == -EMSGSIZE);
kfree_skb(nskb);
} else
- err = rtnl_unicast(nskb, net, NETLINK_CB(skb).pid);
+ err = rtnl_unicast(nskb, net, NETLINK_CB(skb).portid);
return err;
}
@@ -2077,7 +2090,8 @@ static int rtnl_fdb_add(struct sk_buff *skb, struct nlmsghdr *nlh, void *arg)
if ((!ndm->ndm_flags || ndm->ndm_flags & NTF_MASTER) &&
(dev->priv_flags & IFF_BRIDGE_PORT)) {
master = dev->master;
- err = master->netdev_ops->ndo_fdb_add(ndm, dev, addr,
+ err = master->netdev_ops->ndo_fdb_add(ndm, tb,
+ dev, addr,
nlh->nlmsg_flags);
if (err)
goto out;
@@ -2087,7 +2101,8 @@ static int rtnl_fdb_add(struct sk_buff *skb, struct nlmsghdr *nlh, void *arg)
/* Embedded bridge, macvlan, and any other device support */
if ((ndm->ndm_flags & NTF_SELF) && dev->netdev_ops->ndo_fdb_add) {
- err = dev->netdev_ops->ndo_fdb_add(ndm, dev, addr,
+ err = dev->netdev_ops->ndo_fdb_add(ndm, tb,
+ dev, addr,
nlh->nlmsg_flags);
if (!err) {
@@ -2167,9 +2182,9 @@ static int nlmsg_populate_fdb(struct sk_buff *skb,
{
struct netdev_hw_addr *ha;
int err;
- u32 pid, seq;
+ u32 portid, seq;
- pid = NETLINK_CB(cb->skb).pid;
+ portid = NETLINK_CB(cb->skb).portid;
seq = cb->nlh->nlmsg_seq;
list_for_each_entry(ha, &list->list, list) {
@@ -2177,7 +2192,7 @@ static int nlmsg_populate_fdb(struct sk_buff *skb,
goto skip;
err = nlmsg_populate_fdb_fill(skb, dev, ha->addr,
- pid, seq, 0, NTF_SELF);
+ portid, seq, 0, NTF_SELF);
if (err < 0)
return err;
skip:
@@ -2345,7 +2360,7 @@ static int rtnetlink_event(struct notifier_block *this, unsigned long event, voi
case NETDEV_PRE_TYPE_CHANGE:
case NETDEV_GOING_DOWN:
case NETDEV_UNREGISTER:
- case NETDEV_UNREGISTER_BATCH:
+ case NETDEV_UNREGISTER_FINAL:
case NETDEV_RELEASE:
case NETDEV_JOIN:
break;
@@ -2368,9 +2383,10 @@ static int __net_init rtnetlink_net_init(struct net *net)
.groups = RTNLGRP_MAX,
.input = rtnetlink_rcv,
.cb_mutex = &rtnl_mutex,
+ .flags = NL_CFG_F_NONROOT_RECV,
};
- sk = netlink_kernel_create(net, NETLINK_ROUTE, THIS_MODULE, &cfg);
+ sk = netlink_kernel_create(net, NETLINK_ROUTE, &cfg);
if (!sk)
return -ENOMEM;
net->rtnl = sk;
@@ -2403,7 +2419,6 @@ void __init rtnetlink_init(void)
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);
rtnl_register(PF_UNSPEC, RTM_GETLINK, rtnl_getlink,
generated by cgit v1.2.3-18-g5258 (git 2.32.0) at 2024-11-27 10:01:34 +0000