| lists.openwall.net | lists / announce owl-users owl-dev john-users john-dev passwdqc-users yescrypt popa3d-users / oss-security kernel-hardening musl sabotage tlsify passwords / crypt-dev xvendor / Bugtraq Full-Disclosure linux-kernel linux-netdev linux-ext4 linux-hardening linux-cve-announce PHC | |
|
Open Source and information security mailing list archives
| ||
|
Message-Id: <20110523.173407.1442644673486954509.davem@davemloft.net>
Date: Mon, 23 May 2011 17:34:07 -0400 (EDT)
From: David Miller <davem@...emloft.net>
To: netdev@...r.kernel.org
Subject: [PATCH 4/4] ipv4: Kill 'rt_src' from 'struct rtable'
Signed-off-by: David S. Miller <davem@...emloft.net>
---
include/net/route.h | 1 -
net/ipv4/route.c | 34 +++++++++++++++-------------------
net/ipv4/xfrm4_policy.c | 1 -
3 files changed, 15 insertions(+), 21 deletions(-)
diff --git a/include/net/route.h b/include/net/route.h
index d293db3..40e9713 100644
--- a/include/net/route.h
+++ b/include/net/route.h
@@ -50,7 +50,6 @@ struct rtable {
__u16 rt_type;
__be32 rt_dst; /* Path destination */
- __be32 rt_src; /* Path source */
int rt_route_iif;
int rt_iif;
int rt_oif;
diff --git a/net/ipv4/route.c b/net/ipv4/route.c
index 0cdbdb0..1f9d43b 100644
--- a/net/ipv4/route.c
+++ b/net/ipv4/route.c
@@ -1165,7 +1165,6 @@ static int ip_route_input_mc(struct sk_buff *skb, __be32 daddr, __be32 saddr,
rth->rt_flags = RTCF_MULTICAST;
rth->rt_type = RTN_MULTICAST;
rth->rt_dst = daddr;
- rth->rt_src = saddr;
rth->rt_route_iif = dev->ifindex;
rth->rt_iif = dev->ifindex;
rth->rt_oif = 0;
@@ -1298,7 +1297,6 @@ static int __mkroute_input(struct sk_buff *skb,
rth->rt_flags = flags;
rth->rt_type = res->type;
rth->rt_dst = daddr;
- rth->rt_src = saddr;
rth->rt_route_iif = in_dev->dev->ifindex;
rth->rt_iif = in_dev->dev->ifindex;
rth->rt_oif = 0;
@@ -1470,7 +1468,6 @@ local_input:
rth->rt_flags = flags|RTCF_LOCAL;
rth->rt_type = res.type;
rth->rt_dst = daddr;
- rth->rt_src = saddr;
#ifdef CONFIG_IP_ROUTE_CLASSID
rth->dst.tclassid = itag;
#endif
@@ -1634,7 +1631,6 @@ static struct rtable *__mkroute_output(const struct fib_result *res,
rth->rt_flags = flags;
rth->rt_type = type;
rth->rt_dst = fl4->daddr;
- rth->rt_src = fl4->saddr;
rth->rt_route_iif = 0;
rth->rt_iif = orig_oif ? : dev_out->ifindex;
rth->rt_oif = orig_oif;
@@ -1919,7 +1915,6 @@ struct dst_entry *ipv4_blackhole_route(struct net *net, struct dst_entry *dst_or
rt->rt_flags = ort->rt_flags;
rt->rt_type = ort->rt_type;
rt->rt_dst = ort->rt_dst;
- rt->rt_src = ort->rt_src;
rt->rt_gateway = ort->rt_gateway;
rt->rt_spec_dst = ort->rt_spec_dst;
rt->peer = ort->peer;
@@ -1954,7 +1949,7 @@ struct rtable *ip_route_output_flow(struct net *net, struct flowi4 *flp4,
}
EXPORT_SYMBOL_GPL(ip_route_output_flow);
-static int rt_fill_info(struct net *net, __be32 src, u8 tos,
+static int rt_fill_info(struct net *net, __be32 src, struct flowi4 *fl4,
struct sk_buff *skb, u32 pid, u32 seq, int event,
int nowait, unsigned int flags)
{
@@ -1972,7 +1967,7 @@ static int rt_fill_info(struct net *net, __be32 src, u8 tos,
r->rtm_family = AF_INET;
r->rtm_dst_len = 32;
r->rtm_src_len = 0;
- r->rtm_tos = tos;
+ r->rtm_tos = fl4->flowi4_tos;
r->rtm_table = RT_TABLE_MAIN;
NLA_PUT_U32(skb, RTA_TABLE, RT_TABLE_MAIN);
r->rtm_type = rt->rt_type;
@@ -1996,10 +1991,10 @@ static int rt_fill_info(struct net *net, __be32 src, u8 tos,
#endif
if (rt_is_input_route(rt))
NLA_PUT_BE32(skb, RTA_PREFSRC, rt->rt_spec_dst);
- else if (rt->rt_src != src)
- NLA_PUT_BE32(skb, RTA_PREFSRC, rt->rt_src);
+ else if (fl4->saddr != src)
+ NLA_PUT_BE32(skb, RTA_PREFSRC, fl4->saddr);
- if (rt->rt_dst != rt->rt_gateway)
+ if (fl4->daddr != rt->rt_gateway)
NLA_PUT_BE32(skb, RTA_GATEWAY, rt->rt_gateway);
if (rtnetlink_put_metrics(skb, dst_metrics_ptr(&rt->dst)) < 0)
@@ -2027,7 +2022,7 @@ static int rt_fill_info(struct net *net, __be32 src, u8 tos,
if (ipv4_is_multicast(dst) && !ipv4_is_local_multicast(dst) &&
IPV4_DEVCONF_ALL(net, MC_FORWARDING)) {
int err = ipmr_get_route(net, skb,
- rt->rt_src, rt->rt_dst,
+ fl4->saddr, fl4->daddr,
r, nowait);
if (err <= 0) {
if (!nowait) {
@@ -2062,6 +2057,7 @@ static int inet_rtm_getroute(struct sk_buff *in_skb, struct nlmsghdr* nlh, void
struct rtmsg *rtm;
struct nlattr *tb[RTA_MAX+1];
struct rtable *rt = NULL;
+ struct flowi4 fl4;
__be32 dst = 0;
__be32 src = 0;
u32 iif;
@@ -2096,6 +2092,13 @@ static int inet_rtm_getroute(struct sk_buff *in_skb, struct nlmsghdr* nlh, void
iif = tb[RTA_IIF] ? nla_get_u32(tb[RTA_IIF]) : 0;
mark = tb[RTA_MARK] ? nla_get_u32(tb[RTA_MARK]) : 0;
+ memset(&fl4, 0, sizeof(fl4));
+ fl4.daddr = dst;
+ fl4.saddr = src;
+ fl4.flowi4_tos = rtm->rtm_tos;
+ fl4.flowi4_oif = tb[RTA_OIF] ? nla_get_u32(tb[RTA_OIF]) : 0;
+ fl4.flowi4_mark = mark;
+
if (iif) {
struct net_device *dev;
@@ -2116,13 +2119,6 @@ static int inet_rtm_getroute(struct sk_buff *in_skb, struct nlmsghdr* nlh, void
if (err == 0 && rt->dst.error)
err = -rt->dst.error;
} else {
- struct flowi4 fl4 = {
- .daddr = dst,
- .saddr = src,
- .flowi4_tos = rtm->rtm_tos,
- .flowi4_oif = tb[RTA_OIF] ? nla_get_u32(tb[RTA_OIF]) : 0,
- .flowi4_mark = mark,
- };
rt = ip_route_output_key(net, &fl4);
err = 0;
@@ -2137,7 +2133,7 @@ static int inet_rtm_getroute(struct sk_buff *in_skb, struct nlmsghdr* nlh, void
if (rtm->rtm_flags & RTM_F_NOTIFY)
rt->rt_flags |= RTCF_NOTIFY;
- err = rt_fill_info(net, src, rtm->rtm_tos, skb,
+ err = rt_fill_info(net, src, &fl4, skb,
NETLINK_CB(in_skb).pid, nlh->nlmsg_seq,
RTM_NEWROUTE, 0, 0);
if (err <= 0)
diff --git a/net/ipv4/xfrm4_policy.c b/net/ipv4/xfrm4_policy.c
index ea0eeb1..ff2f330 100644
--- a/net/ipv4/xfrm4_policy.c
+++ b/net/ipv4/xfrm4_policy.c
@@ -96,7 +96,6 @@ static int xfrm4_fill_dst(struct xfrm_dst *xdst, struct net_device *dev,
xdst->u.rt.rt_flags = rt->rt_flags & (RTCF_BROADCAST | RTCF_MULTICAST |
RTCF_LOCAL);
xdst->u.rt.rt_type = rt->rt_type;
- xdst->u.rt.rt_src = rt->rt_src;
xdst->u.rt.rt_dst = rt->rt_dst;
xdst->u.rt.rt_gateway = rt->rt_gateway;
xdst->u.rt.rt_spec_dst = rt->rt_spec_dst;
--
1.7.5.2
--
To unsubscribe from this list: send the line "unsubscribe netdev" in
the body of a message to majordomo@...r.kernel.org
More majordomo info at http://vger.kernel.org/majordomo-info.html
Powered by blists - more mailing lists