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authorLinus Torvalds <torvalds@woody.linux-foundation.org>2007-05-23 08:16:24 -0700
committerLinus Torvalds <torvalds@woody.linux-foundation.org>2007-05-23 08:16:24 -0700
commit4598c95514f9a50b49626e1e5d1f292180b643fa (patch)
tree8f6bee748bf326f61b07b2bcbd931f894fd2713b /net/core/rtnetlink.c
parent641e22e04c48af5d813f119c55336e02a22756f5 (diff)
parent575c3e2a041c08ad39b5d4535539a9a7d4c63aa6 (diff)
Merge branch 'master' of master.kernel.org:/pub/scm/linux/kernel/git/davem/net-2.6
* 'master' of master.kernel.org:/pub/scm/linux/kernel/git/davem/net-2.6: [RTNETLINK]: Remove remains of wireless extensions over rtnetlink [RTNETLINK]: Allow changing of subsets of netdevice flags in rtnl_setlink [AF_RXRPC]: Make call state names available if CONFIG_PROC_FS=n [AF_RXRPC]: AF_RXRPC depends on IPv4 [IPSEC]: Fix warnings with casting int to pointer
Diffstat (limited to 'net/core/rtnetlink.c')
-rw-r--r--net/core/rtnetlink.c38
1 files changed, 19 insertions, 19 deletions
diff --git a/net/core/rtnetlink.c b/net/core/rtnetlink.c
index 8c971a2efe2a..27da9cdec6a8 100644
--- a/net/core/rtnetlink.c
+++ b/net/core/rtnetlink.c
@@ -437,7 +437,7 @@ static void copy_rtnl_link_stats(struct rtnl_link_stats *a,
a->tx_compressed = b->tx_compressed;
};
-static inline size_t if_nlmsg_size(int iwbuflen)
+static inline size_t if_nlmsg_size(void)
{
return NLMSG_ALIGN(sizeof(struct ifinfomsg))
+ nla_total_size(IFNAMSIZ) /* IFLA_IFNAME */
@@ -452,13 +452,12 @@ static inline size_t if_nlmsg_size(int iwbuflen)
+ nla_total_size(4) /* IFLA_LINK */
+ nla_total_size(4) /* IFLA_MASTER */
+ nla_total_size(1) /* IFLA_OPERSTATE */
- + nla_total_size(1) /* IFLA_LINKMODE */
- + nla_total_size(iwbuflen);
+ + nla_total_size(1); /* IFLA_LINKMODE */
}
static int rtnl_fill_ifinfo(struct sk_buff *skb, struct net_device *dev,
- void *iwbuf, int iwbuflen, int type, u32 pid,
- u32 seq, u32 change, unsigned int flags)
+ int type, u32 pid, u32 seq, u32 change,
+ unsigned int flags)
{
struct ifinfomsg *ifm;
struct nlmsghdr *nlh;
@@ -523,9 +522,6 @@ static int rtnl_fill_ifinfo(struct sk_buff *skb, struct net_device *dev,
}
}
- if (iwbuf)
- NLA_PUT(skb, IFLA_WIRELESS, iwbuflen, iwbuf);
-
return nlmsg_end(skb, nlh);
nla_put_failure:
@@ -543,7 +539,7 @@ static int rtnl_dump_ifinfo(struct sk_buff *skb, struct netlink_callback *cb)
for_each_netdev(dev) {
if (idx < s_idx)
goto cont;
- if (rtnl_fill_ifinfo(skb, dev, NULL, 0, RTM_NEWLINK,
+ if (rtnl_fill_ifinfo(skb, dev, RTM_NEWLINK,
NETLINK_CB(cb->skb).pid,
cb->nlh->nlmsg_seq, 0, NLM_F_MULTI) <= 0)
break;
@@ -689,8 +685,15 @@ static int rtnl_setlink(struct sk_buff *skb, struct nlmsghdr *nlh, void *arg)
}
- if (ifm->ifi_flags)
- dev_change_flags(dev, ifm->ifi_flags);
+ if (ifm->ifi_flags || ifm->ifi_change) {
+ unsigned int flags = ifm->ifi_flags;
+
+ /* bugwards compatibility: ifi_change == 0 is treated as ~0 */
+ if (ifm->ifi_change)
+ flags = (flags & ifm->ifi_change) |
+ (dev->flags & ~ifm->ifi_change);
+ dev_change_flags(dev, flags);
+ }
if (tb[IFLA_TXQLEN])
dev->tx_queue_len = nla_get_u32(tb[IFLA_TXQLEN]);
@@ -730,8 +733,6 @@ static int rtnl_getlink(struct sk_buff *skb, struct nlmsghdr* nlh, void *arg)
struct nlattr *tb[IFLA_MAX+1];
struct net_device *dev = NULL;
struct sk_buff *nskb;
- char *iw_buf = NULL, *iw = NULL;
- int iw_buf_len = 0;
int err;
err = nlmsg_parse(nlh, sizeof(*ifm), tb, IFLA_MAX, ifla_policy);
@@ -746,14 +747,14 @@ static int rtnl_getlink(struct sk_buff *skb, struct nlmsghdr* nlh, void *arg)
} else
return -EINVAL;
- nskb = nlmsg_new(if_nlmsg_size(iw_buf_len), GFP_KERNEL);
+ nskb = nlmsg_new(if_nlmsg_size(), GFP_KERNEL);
if (nskb == NULL) {
err = -ENOBUFS;
goto errout;
}
- err = rtnl_fill_ifinfo(nskb, dev, iw, iw_buf_len, RTM_NEWLINK,
- NETLINK_CB(skb).pid, nlh->nlmsg_seq, 0, 0);
+ err = rtnl_fill_ifinfo(nskb, dev, RTM_NEWLINK, NETLINK_CB(skb).pid,
+ nlh->nlmsg_seq, 0, 0);
if (err < 0) {
/* -EMSGSIZE implies BUG in if_nlmsg_size */
WARN_ON(err == -EMSGSIZE);
@@ -762,7 +763,6 @@ static int rtnl_getlink(struct sk_buff *skb, struct nlmsghdr* nlh, void *arg)
}
err = rtnl_unicast(nskb, NETLINK_CB(skb).pid);
errout:
- kfree(iw_buf);
dev_put(dev);
return err;
@@ -797,11 +797,11 @@ void rtmsg_ifinfo(int type, struct net_device *dev, unsigned change)
struct sk_buff *skb;
int err = -ENOBUFS;
- skb = nlmsg_new(if_nlmsg_size(0), GFP_KERNEL);
+ skb = nlmsg_new(if_nlmsg_size(), GFP_KERNEL);
if (skb == NULL)
goto errout;
- err = rtnl_fill_ifinfo(skb, dev, NULL, 0, type, 0, 0, change, 0);
+ err = rtnl_fill_ifinfo(skb, dev, type, 0, 0, change, 0);
if (err < 0) {
/* -EMSGSIZE implies BUG in if_nlmsg_size() */
WARN_ON(err == -EMSGSIZE);