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Commit 9ed19f33 authored by Jamal Hadi Salim's avatar Jamal Hadi Salim Committed by David S. Miller
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[NETLINK]: Set correct pid for ioctl originating netlink events 



This patch ensures that netlink events created as a result of programns
using ioctls (such as ifconfig, route etc) contains the correct PID of
those events.
 
Signed-off-by: default avatarJamal Hadi Salim <hadi@cyberus.ca>
Signed-off-by: default avatarDavid S. Miller <davem@davemloft.net>
parent e431b8c0

net/core/rtnetlink.c

+1 −1
Original line number Diff line number Diff line
@@ -452,7 +452,7 @@ void rtmsg_ifinfo(int type, struct net_device *dev, unsigned change) 
	if (!skb)

		return;



	if (rtnetlink_fill_ifinfo(skb, dev, type, 0, 0, change, 0) < 0) {

	if (rtnetlink_fill_ifinfo(skb, dev, type, current->pid, 0, change, 0) < 0) {

		kfree_skb(skb);

		return;

	}

net/ipv4/devinet.c

+1 −1
Original line number Diff line number Diff line
@@ -1112,7 +1112,7 @@ static void rtmsg_ifa(int event, struct in_ifaddr* ifa) 


	if (!skb)

		netlink_set_err(rtnl, 0, RTMGRP_IPV4_IFADDR, ENOBUFS);

	else if (inet_fill_ifaddr(skb, ifa, 0, 0, event, 0) < 0) {

	else if (inet_fill_ifaddr(skb, ifa, current->pid, 0, event, 0) < 0) {

		kfree_skb(skb);

		netlink_set_err(rtnl, 0, RTMGRP_IPV4_IFADDR, EINVAL);

	} else {

net/ipv4/fib_semantics.c

+2 −2
Original line number Diff line number Diff line
@@ -276,7 +276,7 @@ void rtmsg_fib(int event, u32 key, struct fib_alias *fa, 
	       struct nlmsghdr *n, struct netlink_skb_parms *req)

{

	struct sk_buff *skb;

	u32 pid = req ? req->pid : 0;

	u32 pid = req ? req->pid : n->nlmsg_pid;

	int size = NLMSG_SPACE(sizeof(struct rtmsg)+256);



	skb = alloc_skb(size, GFP_KERNEL);
@@ -1035,7 +1035,7 @@ fib_convert_rtentry(int cmd, struct nlmsghdr *nl, struct rtmsg *rtm, 
	}



	nl->nlmsg_flags = NLM_F_REQUEST;

	nl->nlmsg_pid = 0;

	nl->nlmsg_pid = current->pid;

	nl->nlmsg_seq = 0;

	nl->nlmsg_len = NLMSG_LENGTH(sizeof(*rtm));

	if (cmd == SIOCDELRT) {

net/ipv6/addrconf.c

+3 −3
Original line number Diff line number Diff line
@@ -2873,7 +2873,7 @@ static void inet6_ifa_notify(int event, struct inet6_ifaddr *ifa) 
		netlink_set_err(rtnl, 0, RTMGRP_IPV6_IFADDR, ENOBUFS);

		return;

	}

	if (inet6_fill_ifaddr(skb, ifa, 0, 0, event, 0) < 0) {

	if (inet6_fill_ifaddr(skb, ifa, current->pid, 0, event, 0) < 0) {

		kfree_skb(skb);

		netlink_set_err(rtnl, 0, RTMGRP_IPV6_IFADDR, EINVAL);

		return;
@@ -3008,7 +3008,7 @@ void inet6_ifinfo_notify(int event, struct inet6_dev *idev) 
		netlink_set_err(rtnl, 0, RTMGRP_IPV6_IFINFO, ENOBUFS);

		return;

	}

	if (inet6_fill_ifinfo(skb, idev, 0, 0, event, 0) < 0) {

	if (inet6_fill_ifinfo(skb, idev, current->pid, 0, event, 0) < 0) {

		kfree_skb(skb);

		netlink_set_err(rtnl, 0, RTMGRP_IPV6_IFINFO, EINVAL);

		return;
@@ -3065,7 +3065,7 @@ static void inet6_prefix_notify(int event, struct inet6_dev *idev, 
		netlink_set_err(rtnl, 0, RTMGRP_IPV6_PREFIX, ENOBUFS);

		return;

	}

	if (inet6_fill_prefix(skb, idev, pinfo, 0, 0, event, 0) < 0) {

	if (inet6_fill_prefix(skb, idev, pinfo, current->pid, 0, event, 0) < 0) {

		kfree_skb(skb);

		netlink_set_err(rtnl, 0, RTMGRP_IPV6_PREFIX, EINVAL);

		return;