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-rw-r--r--net/netfilter/ipvs/ip_vs_core.c24
-rw-r--r--net/netfilter/ipvs/ip_vs_ctl.c3
-rw-r--r--net/netfilter/ipvs/ip_vs_xmit.c97
3 files changed, 66 insertions, 58 deletions
diff --git a/net/netfilter/ipvs/ip_vs_core.c b/net/netfilter/ipvs/ip_vs_core.c
index a74dae6..bfa808f 100644
--- a/net/netfilter/ipvs/ip_vs_core.c
+++ b/net/netfilter/ipvs/ip_vs_core.c
@@ -1382,15 +1382,7 @@ ip_vs_in_icmp(struct sk_buff *skb, int *related, unsigned int hooknum)
ip_vs_in_stats(cp, skb);
if (IPPROTO_TCP == cih->protocol || IPPROTO_UDP == cih->protocol)
offset += 2 * sizeof(__u16);
- verdict = ip_vs_icmp_xmit(skb, cp, pp, offset);
- /* LOCALNODE from FORWARD hook is not supported */
- if (verdict == NF_ACCEPT && hooknum == NF_INET_FORWARD &&
- skb_rtable(skb)->rt_flags & RTCF_LOCAL) {
- IP_VS_DBG(1, "%s(): "
- "local delivery to %pI4 but in FORWARD\n",
- __func__, &skb_rtable(skb)->rt_dst);
- verdict = NF_DROP;
- }
+ verdict = ip_vs_icmp_xmit(skb, cp, pp, offset, hooknum);
out:
__ip_vs_conn_put(cp);
@@ -1412,7 +1404,6 @@ ip_vs_in_icmp_v6(struct sk_buff *skb, int *related, unsigned int hooknum)
struct ip_vs_protocol *pp;
struct ip_vs_proto_data *pd;
unsigned int offset, verdict;
- struct rt6_info *rt;
*related = 1;
@@ -1474,23 +1465,12 @@ ip_vs_in_icmp_v6(struct sk_buff *skb, int *related, unsigned int hooknum)
if (!cp)
return NF_ACCEPT;
- verdict = NF_DROP;
-
/* do the statistics and put it back */
ip_vs_in_stats(cp, skb);
if (IPPROTO_TCP == cih->nexthdr || IPPROTO_UDP == cih->nexthdr ||
IPPROTO_SCTP == cih->nexthdr)
offset += 2 * sizeof(__u16);
- verdict = ip_vs_icmp_xmit_v6(skb, cp, pp, offset);
- /* LOCALNODE from FORWARD hook is not supported */
- if (verdict == NF_ACCEPT && hooknum == NF_INET_FORWARD &&
- (rt = (struct rt6_info *) skb_dst(skb)) &&
- rt->rt6i_dev && rt->rt6i_dev->flags & IFF_LOOPBACK) {
- IP_VS_DBG(1, "%s(): "
- "local delivery to %pI6 but in FORWARD\n",
- __func__, &rt->rt6i_dst);
- verdict = NF_DROP;
- }
+ verdict = ip_vs_icmp_xmit_v6(skb, cp, pp, offset, hooknum);
__ip_vs_conn_put(cp);
diff --git a/net/netfilter/ipvs/ip_vs_ctl.c b/net/netfilter/ipvs/ip_vs_ctl.c
index 37890f2..699c79a 100644
--- a/net/netfilter/ipvs/ip_vs_ctl.c
+++ b/net/netfilter/ipvs/ip_vs_ctl.c
@@ -2069,9 +2069,6 @@ static const struct file_operations ip_vs_info_fops = {
.release = seq_release_net,
};
-#endif
-
-#ifdef CONFIG_PROC_FS
static int ip_vs_stats_show(struct seq_file *seq, void *v)
{
struct net *net = seq_file_single_net(seq);
diff --git a/net/netfilter/ipvs/ip_vs_xmit.c b/net/netfilter/ipvs/ip_vs_xmit.c
index 6132b21..ee319a4 100644
--- a/net/netfilter/ipvs/ip_vs_xmit.c
+++ b/net/netfilter/ipvs/ip_vs_xmit.c
@@ -87,7 +87,7 @@ __ip_vs_dst_check(struct ip_vs_dest *dest, u32 rtos)
/* Get route to destination or remote server */
static struct rtable *
__ip_vs_get_out_rt(struct sk_buff *skb, struct ip_vs_dest *dest,
- __be32 daddr, u32 rtos, int rt_mode)
+ __be32 daddr, u32 rtos, int rt_mode, __be32 *ret_saddr)
{
struct net *net = dev_net(skb_dst(skb)->dev);
struct rtable *rt; /* Route to the other host */
@@ -98,7 +98,12 @@ __ip_vs_get_out_rt(struct sk_buff *skb, struct ip_vs_dest *dest,
spin_lock(&dest->dst_lock);
if (!(rt = (struct rtable *)
__ip_vs_dst_check(dest, rtos))) {
- rt = ip_route_output(net, dest->addr.ip, 0, rtos, 0);
+ struct flowi4 fl4;
+
+ memset(&fl4, 0, sizeof(fl4));
+ fl4.daddr = dest->addr.ip;
+ fl4.flowi4_tos = rtos;
+ rt = ip_route_output_key(net, &fl4);
if (IS_ERR(rt)) {
spin_unlock(&dest->dst_lock);
IP_VS_DBG_RL("ip_route_output error, dest: %pI4\n",
@@ -106,18 +111,30 @@ __ip_vs_get_out_rt(struct sk_buff *skb, struct ip_vs_dest *dest,
return NULL;
}
__ip_vs_dst_set(dest, rtos, dst_clone(&rt->dst), 0);
- IP_VS_DBG(10, "new dst %pI4, refcnt=%d, rtos=%X\n",
- &dest->addr.ip,
+ dest->dst_saddr.ip = fl4.saddr;
+ IP_VS_DBG(10, "new dst %pI4, src %pI4, refcnt=%d, "
+ "rtos=%X\n",
+ &dest->addr.ip, &dest->dst_saddr.ip,
atomic_read(&rt->dst.__refcnt), rtos);
}
+ daddr = dest->addr.ip;
+ if (ret_saddr)
+ *ret_saddr = dest->dst_saddr.ip;
spin_unlock(&dest->dst_lock);
} else {
- rt = ip_route_output(net, daddr, 0, rtos, 0);
+ struct flowi4 fl4;
+
+ memset(&fl4, 0, sizeof(fl4));
+ fl4.daddr = daddr;
+ fl4.flowi4_tos = rtos;
+ rt = ip_route_output_key(net, &fl4);
if (IS_ERR(rt)) {
IP_VS_DBG_RL("ip_route_output error, dest: %pI4\n",
&daddr);
return NULL;
}
+ if (ret_saddr)
+ *ret_saddr = fl4.saddr;
}
local = rt->rt_flags & RTCF_LOCAL;
@@ -125,7 +142,7 @@ __ip_vs_get_out_rt(struct sk_buff *skb, struct ip_vs_dest *dest,
rt_mode)) {
IP_VS_DBG_RL("Stopping traffic to %s address, dest: %pI4\n",
(rt->rt_flags & RTCF_LOCAL) ?
- "local":"non-local", &rt->rt_dst);
+ "local":"non-local", &daddr);
ip_rt_put(rt);
return NULL;
}
@@ -133,14 +150,14 @@ __ip_vs_get_out_rt(struct sk_buff *skb, struct ip_vs_dest *dest,
!((ort = skb_rtable(skb)) && ort->rt_flags & RTCF_LOCAL)) {
IP_VS_DBG_RL("Redirect from non-local address %pI4 to local "
"requires NAT method, dest: %pI4\n",
- &ip_hdr(skb)->daddr, &rt->rt_dst);
+ &ip_hdr(skb)->daddr, &daddr);
ip_rt_put(rt);
return NULL;
}
if (unlikely(!local && ipv4_is_loopback(ip_hdr(skb)->saddr))) {
IP_VS_DBG_RL("Stopping traffic from loopback address %pI4 "
"to non-local address, dest: %pI4\n",
- &ip_hdr(skb)->saddr, &rt->rt_dst);
+ &ip_hdr(skb)->saddr, &daddr);
ip_rt_put(rt);
return NULL;
}
@@ -229,8 +246,6 @@ out_err:
/*
* Get route to destination or remote server
- * rt_mode: flags, &1=Allow local dest, &2=Allow non-local dest,
- * &4=Allow redirect from remote daddr to local
*/
static struct rt6_info *
__ip_vs_get_out_rt_v6(struct sk_buff *skb, struct ip_vs_dest *dest,
@@ -250,7 +265,7 @@ __ip_vs_get_out_rt_v6(struct sk_buff *skb, struct ip_vs_dest *dest,
u32 cookie;
dst = __ip_vs_route_output_v6(net, &dest->addr.in6,
- &dest->dst_saddr,
+ &dest->dst_saddr.in6,
do_xfrm);
if (!dst) {
spin_unlock(&dest->dst_lock);
@@ -260,11 +275,11 @@ __ip_vs_get_out_rt_v6(struct sk_buff *skb, struct ip_vs_dest *dest,
cookie = rt->rt6i_node ? rt->rt6i_node->fn_sernum : 0;
__ip_vs_dst_set(dest, 0, dst_clone(&rt->dst), cookie);
IP_VS_DBG(10, "new dst %pI6, src %pI6, refcnt=%d\n",
- &dest->addr.in6, &dest->dst_saddr,
+ &dest->addr.in6, &dest->dst_saddr.in6,
atomic_read(&rt->dst.__refcnt));
}
if (ret_saddr)
- ipv6_addr_copy(ret_saddr, &dest->dst_saddr);
+ ipv6_addr_copy(ret_saddr, &dest->dst_saddr.in6);
spin_unlock(&dest->dst_lock);
} else {
dst = __ip_vs_route_output_v6(net, daddr, ret_saddr, do_xfrm);
@@ -274,13 +289,14 @@ __ip_vs_get_out_rt_v6(struct sk_buff *skb, struct ip_vs_dest *dest,
}
local = __ip_vs_is_local_route6(rt);
- if (!((local ? 1 : 2) & rt_mode)) {
+ if (!((local ? IP_VS_RT_MODE_LOCAL : IP_VS_RT_MODE_NON_LOCAL) &
+ rt_mode)) {
IP_VS_DBG_RL("Stopping traffic to %s address, dest: %pI6\n",
local ? "local":"non-local", daddr);
dst_release(&rt->dst);
return NULL;
}
- if (local && !(rt_mode & 4) &&
+ if (local && !(rt_mode & IP_VS_RT_MODE_RDR) &&
!((ort = (struct rt6_info *) skb_dst(skb)) &&
__ip_vs_is_local_route6(ort))) {
IP_VS_DBG_RL("Redirect from non-local address %pI6 to local "
@@ -386,7 +402,7 @@ ip_vs_bypass_xmit(struct sk_buff *skb, struct ip_vs_conn *cp,
EnterFunction(10);
if (!(rt = __ip_vs_get_out_rt(skb, NULL, iph->daddr, RT_TOS(iph->tos),
- IP_VS_RT_MODE_NON_LOCAL)))
+ IP_VS_RT_MODE_NON_LOCAL, NULL)))
goto tx_error_icmp;
/* MTU checking */
@@ -440,7 +456,8 @@ ip_vs_bypass_xmit_v6(struct sk_buff *skb, struct ip_vs_conn *cp,
EnterFunction(10);
- if (!(rt = __ip_vs_get_out_rt_v6(skb, NULL, &iph->daddr, NULL, 0, 2)))
+ if (!(rt = __ip_vs_get_out_rt_v6(skb, NULL, &iph->daddr, NULL, 0,
+ IP_VS_RT_MODE_NON_LOCAL)))
goto tx_error_icmp;
/* MTU checking */
@@ -517,7 +534,7 @@ ip_vs_nat_xmit(struct sk_buff *skb, struct ip_vs_conn *cp,
RT_TOS(iph->tos),
IP_VS_RT_MODE_LOCAL |
IP_VS_RT_MODE_NON_LOCAL |
- IP_VS_RT_MODE_RDR)))
+ IP_VS_RT_MODE_RDR, NULL)))
goto tx_error_icmp;
local = rt->rt_flags & RTCF_LOCAL;
/*
@@ -539,7 +556,7 @@ ip_vs_nat_xmit(struct sk_buff *skb, struct ip_vs_conn *cp,
#endif
/* From world but DNAT to loopback address? */
- if (local && ipv4_is_loopback(rt->rt_dst) &&
+ if (local && ipv4_is_loopback(cp->daddr.ip) &&
rt_is_input_route(skb_rtable(skb))) {
IP_VS_DBG_RL_PKT(1, AF_INET, pp, skb, 0, "ip_vs_nat_xmit(): "
"stopping DNAT to loopback address");
@@ -632,7 +649,9 @@ ip_vs_nat_xmit_v6(struct sk_buff *skb, struct ip_vs_conn *cp,
}
if (!(rt = __ip_vs_get_out_rt_v6(skb, cp->dest, &cp->daddr.in6, NULL,
- 0, 1|2|4)))
+ 0, (IP_VS_RT_MODE_LOCAL |
+ IP_VS_RT_MODE_NON_LOCAL |
+ IP_VS_RT_MODE_RDR))))
goto tx_error_icmp;
local = __ip_vs_is_local_route6(rt);
/*
@@ -748,6 +767,7 @@ ip_vs_tunnel_xmit(struct sk_buff *skb, struct ip_vs_conn *cp,
struct ip_vs_protocol *pp)
{
struct rtable *rt; /* Route to the other host */
+ __be32 saddr; /* Source for tunnel */
struct net_device *tdev; /* Device to other host */
struct iphdr *old_iph = ip_hdr(skb);
u8 tos = old_iph->tos;
@@ -761,7 +781,8 @@ ip_vs_tunnel_xmit(struct sk_buff *skb, struct ip_vs_conn *cp,
if (!(rt = __ip_vs_get_out_rt(skb, cp->dest, cp->daddr.ip,
RT_TOS(tos), IP_VS_RT_MODE_LOCAL |
- IP_VS_RT_MODE_NON_LOCAL)))
+ IP_VS_RT_MODE_NON_LOCAL,
+ &saddr)))
goto tx_error_icmp;
if (rt->rt_flags & RTCF_LOCAL) {
ip_rt_put(rt);
@@ -829,8 +850,8 @@ ip_vs_tunnel_xmit(struct sk_buff *skb, struct ip_vs_conn *cp,
iph->frag_off = df;
iph->protocol = IPPROTO_IPIP;
iph->tos = tos;
- iph->daddr = rt->rt_dst;
- iph->saddr = rt->rt_src;
+ iph->daddr = cp->daddr.ip;
+ iph->saddr = saddr;
iph->ttl = old_iph->ttl;
ip_select_ident(iph, &rt->dst, NULL);
@@ -875,7 +896,8 @@ ip_vs_tunnel_xmit_v6(struct sk_buff *skb, struct ip_vs_conn *cp,
EnterFunction(10);
if (!(rt = __ip_vs_get_out_rt_v6(skb, cp->dest, &cp->daddr.in6,
- &saddr, 1, 1|2)))
+ &saddr, 1, (IP_VS_RT_MODE_LOCAL |
+ IP_VS_RT_MODE_NON_LOCAL))))
goto tx_error_icmp;
if (__ip_vs_is_local_route6(rt)) {
dst_release(&rt->dst);
@@ -992,7 +1014,7 @@ ip_vs_dr_xmit(struct sk_buff *skb, struct ip_vs_conn *cp,
if (!(rt = __ip_vs_get_out_rt(skb, cp->dest, cp->daddr.ip,
RT_TOS(iph->tos),
IP_VS_RT_MODE_LOCAL |
- IP_VS_RT_MODE_NON_LOCAL)))
+ IP_VS_RT_MODE_NON_LOCAL, NULL)))
goto tx_error_icmp;
if (rt->rt_flags & RTCF_LOCAL) {
ip_rt_put(rt);
@@ -1050,7 +1072,8 @@ ip_vs_dr_xmit_v6(struct sk_buff *skb, struct ip_vs_conn *cp,
EnterFunction(10);
if (!(rt = __ip_vs_get_out_rt_v6(skb, cp->dest, &cp->daddr.in6, NULL,
- 0, 1|2)))
+ 0, (IP_VS_RT_MODE_LOCAL |
+ IP_VS_RT_MODE_NON_LOCAL))))
goto tx_error_icmp;
if (__ip_vs_is_local_route6(rt)) {
dst_release(&rt->dst);
@@ -1109,12 +1132,13 @@ tx_error:
*/
int
ip_vs_icmp_xmit(struct sk_buff *skb, struct ip_vs_conn *cp,
- struct ip_vs_protocol *pp, int offset)
+ struct ip_vs_protocol *pp, int offset, unsigned int hooknum)
{
struct rtable *rt; /* Route to the other host */
int mtu;
int rc;
int local;
+ int rt_mode;
EnterFunction(10);
@@ -1135,11 +1159,13 @@ ip_vs_icmp_xmit(struct sk_buff *skb, struct ip_vs_conn *cp,
* mangle and send the packet here (only for VS/NAT)
*/
+ /* LOCALNODE from FORWARD hook is not supported */
+ rt_mode = (hooknum != NF_INET_FORWARD) ?
+ IP_VS_RT_MODE_LOCAL | IP_VS_RT_MODE_NON_LOCAL |
+ IP_VS_RT_MODE_RDR : IP_VS_RT_MODE_NON_LOCAL;
if (!(rt = __ip_vs_get_out_rt(skb, cp->dest, cp->daddr.ip,
RT_TOS(ip_hdr(skb)->tos),
- IP_VS_RT_MODE_LOCAL |
- IP_VS_RT_MODE_NON_LOCAL |
- IP_VS_RT_MODE_RDR)))
+ rt_mode, NULL)))
goto tx_error_icmp;
local = rt->rt_flags & RTCF_LOCAL;
@@ -1162,7 +1188,7 @@ ip_vs_icmp_xmit(struct sk_buff *skb, struct ip_vs_conn *cp,
#endif
/* From world but DNAT to loopback address? */
- if (local && ipv4_is_loopback(rt->rt_dst) &&
+ if (local && ipv4_is_loopback(cp->daddr.ip) &&
rt_is_input_route(skb_rtable(skb))) {
IP_VS_DBG(1, "%s(): "
"stopping DNAT to loopback %pI4\n",
@@ -1227,12 +1253,13 @@ ip_vs_icmp_xmit(struct sk_buff *skb, struct ip_vs_conn *cp,
#ifdef CONFIG_IP_VS_IPV6
int
ip_vs_icmp_xmit_v6(struct sk_buff *skb, struct ip_vs_conn *cp,
- struct ip_vs_protocol *pp, int offset)
+ struct ip_vs_protocol *pp, int offset, unsigned int hooknum)
{
struct rt6_info *rt; /* Route to the other host */
int mtu;
int rc;
int local;
+ int rt_mode;
EnterFunction(10);
@@ -1253,8 +1280,12 @@ ip_vs_icmp_xmit_v6(struct sk_buff *skb, struct ip_vs_conn *cp,
* mangle and send the packet here (only for VS/NAT)
*/
+ /* LOCALNODE from FORWARD hook is not supported */
+ rt_mode = (hooknum != NF_INET_FORWARD) ?
+ IP_VS_RT_MODE_LOCAL | IP_VS_RT_MODE_NON_LOCAL |
+ IP_VS_RT_MODE_RDR : IP_VS_RT_MODE_NON_LOCAL;
if (!(rt = __ip_vs_get_out_rt_v6(skb, cp->dest, &cp->daddr.in6, NULL,
- 0, 1|2|4)))
+ 0, rt_mode)))
goto tx_error_icmp;
local = __ip_vs_is_local_route6(rt);
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