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-rw-r--r--net/ipv4/ip_gre.c3
-rw-r--r--net/ipv4/ip_output.c16
-rw-r--r--net/ipv4/ipip.c3
-rw-r--r--net/ipv4/netfilter/nf_conntrack_l3proto_ipv4.c5
-rw-r--r--net/ipv4/xfrm4_output.c13
-rw-r--r--net/ipv6/icmp.c6
-rw-r--r--net/ipv6/netfilter/ip6t_REJECT.c2
-rw-r--r--net/netfilter/Kconfig6
-rw-r--r--net/netfilter/nf_conntrack_core.c5
-rw-r--r--net/netfilter/nf_conntrack_proto_tcp.c4
-rw-r--r--net/netfilter/nf_conntrack_proto_udp.c4
11 files changed, 46 insertions, 21 deletions
diff --git a/net/ipv4/ip_gre.c b/net/ipv4/ip_gre.c
index abe23923e4e..9981dcd68f1 100644
--- a/net/ipv4/ip_gre.c
+++ b/net/ipv4/ip_gre.c
@@ -830,7 +830,8 @@ static int ipgre_tunnel_xmit(struct sk_buff *skb, struct net_device *dev)
skb->h.raw = skb->nh.raw;
skb->nh.raw = skb_push(skb, gre_hlen);
memset(&(IPCB(skb)->opt), 0, sizeof(IPCB(skb)->opt));
- IPCB(skb)->flags &= ~(IPSKB_XFRM_TUNNEL_SIZE|IPSKB_XFRM_TRANSFORMED);
+ IPCB(skb)->flags &= ~(IPSKB_XFRM_TUNNEL_SIZE | IPSKB_XFRM_TRANSFORMED |
+ IPSKB_REROUTED);
dst_release(skb->dst);
skb->dst = &rt->u.dst;
diff --git a/net/ipv4/ip_output.c b/net/ipv4/ip_output.c
index 3324fbfe528..57d290d89ec 100644
--- a/net/ipv4/ip_output.c
+++ b/net/ipv4/ip_output.c
@@ -207,8 +207,10 @@ static inline int ip_finish_output(struct sk_buff *skb)
{
#if defined(CONFIG_NETFILTER) && defined(CONFIG_XFRM)
/* Policy lookup after SNAT yielded a new policy */
- if (skb->dst->xfrm != NULL)
- return xfrm4_output_finish(skb);
+ if (skb->dst->xfrm != NULL) {
+ IPCB(skb)->flags |= IPSKB_REROUTED;
+ return dst_output(skb);
+ }
#endif
if (skb->len > dst_mtu(skb->dst) &&
!(skb_shinfo(skb)->ufo_size || skb_shinfo(skb)->tso_size))
@@ -271,8 +273,9 @@ int ip_mc_output(struct sk_buff *skb)
newskb->dev, ip_dev_loopback_xmit);
}
- return NF_HOOK(PF_INET, NF_IP_POST_ROUTING, skb, NULL, skb->dev,
- ip_finish_output);
+ return NF_HOOK_COND(PF_INET, NF_IP_POST_ROUTING, skb, NULL, skb->dev,
+ ip_finish_output,
+ !(IPCB(skb)->flags & IPSKB_REROUTED));
}
int ip_output(struct sk_buff *skb)
@@ -284,8 +287,9 @@ int ip_output(struct sk_buff *skb)
skb->dev = dev;
skb->protocol = htons(ETH_P_IP);
- return NF_HOOK(PF_INET, NF_IP_POST_ROUTING, skb, NULL, dev,
- ip_finish_output);
+ return NF_HOOK_COND(PF_INET, NF_IP_POST_ROUTING, skb, NULL, dev,
+ ip_finish_output,
+ !(IPCB(skb)->flags & IPSKB_REROUTED));
}
int ip_queue_xmit(struct sk_buff *skb, int ipfragok)
diff --git a/net/ipv4/ipip.c b/net/ipv4/ipip.c
index e5cbe72c6b8..03d13742a4b 100644
--- a/net/ipv4/ipip.c
+++ b/net/ipv4/ipip.c
@@ -622,7 +622,8 @@ static int ipip_tunnel_xmit(struct sk_buff *skb, struct net_device *dev)
skb->h.raw = skb->nh.raw;
skb->nh.raw = skb_push(skb, sizeof(struct iphdr));
memset(&(IPCB(skb)->opt), 0, sizeof(IPCB(skb)->opt));
- IPCB(skb)->flags &= ~(IPSKB_XFRM_TUNNEL_SIZE|IPSKB_XFRM_TRANSFORMED);
+ IPCB(skb)->flags &= ~(IPSKB_XFRM_TUNNEL_SIZE | IPSKB_XFRM_TRANSFORMED |
+ IPSKB_REROUTED);
dst_release(skb->dst);
skb->dst = &rt->u.dst;
diff --git a/net/ipv4/netfilter/nf_conntrack_l3proto_ipv4.c b/net/ipv4/netfilter/nf_conntrack_l3proto_ipv4.c
index 167619f638c..6c8624a5493 100644
--- a/net/ipv4/netfilter/nf_conntrack_l3proto_ipv4.c
+++ b/net/ipv4/netfilter/nf_conntrack_l3proto_ipv4.c
@@ -529,15 +529,10 @@ static int init_or_cleanup(int init)
goto cleanup_localinops;
}
#endif
-
- /* For use by REJECT target */
- ip_ct_attach = __nf_conntrack_attach;
-
return ret;
cleanup:
synchronize_net();
- ip_ct_attach = NULL;
#ifdef CONFIG_SYSCTL
unregister_sysctl_table(nf_ct_ipv4_sysctl_header);
cleanup_localinops:
diff --git a/net/ipv4/xfrm4_output.c b/net/ipv4/xfrm4_output.c
index d4df0ddd424..32ad229b4fe 100644
--- a/net/ipv4/xfrm4_output.c
+++ b/net/ipv4/xfrm4_output.c
@@ -152,10 +152,16 @@ error_nolock:
goto out_exit;
}
-int xfrm4_output_finish(struct sk_buff *skb)
+static int xfrm4_output_finish(struct sk_buff *skb)
{
int err;
+#ifdef CONFIG_NETFILTER
+ if (!skb->dst->xfrm) {
+ IPCB(skb)->flags |= IPSKB_REROUTED;
+ return dst_output(skb);
+ }
+#endif
while (likely((err = xfrm4_output_one(skb)) == 0)) {
nf_reset(skb);
@@ -178,6 +184,7 @@ int xfrm4_output_finish(struct sk_buff *skb)
int xfrm4_output(struct sk_buff *skb)
{
- return NF_HOOK(PF_INET, NF_IP_POST_ROUTING, skb, NULL, skb->dst->dev,
- xfrm4_output_finish);
+ return NF_HOOK_COND(PF_INET, NF_IP_POST_ROUTING, skb, NULL, skb->dst->dev,
+ xfrm4_output_finish,
+ !(IPCB(skb)->flags & IPSKB_REROUTED));
}
diff --git a/net/ipv6/icmp.c b/net/ipv6/icmp.c
index fcf883183ce..21eb725e885 100644
--- a/net/ipv6/icmp.c
+++ b/net/ipv6/icmp.c
@@ -42,6 +42,7 @@
#include <linux/net.h>
#include <linux/skbuff.h>
#include <linux/init.h>
+#include <linux/netfilter.h>
#ifdef CONFIG_SYSCTL
#include <linux/sysctl.h>
@@ -255,6 +256,7 @@ out:
struct icmpv6_msg {
struct sk_buff *skb;
int offset;
+ uint8_t type;
};
static int icmpv6_getfrag(void *from, char *to, int offset, int len, int odd, struct sk_buff *skb)
@@ -266,6 +268,8 @@ static int icmpv6_getfrag(void *from, char *to, int offset, int len, int odd, st
csum = skb_copy_and_csum_bits(org_skb, msg->offset + offset,
to, len, csum);
skb->csum = csum_block_add(skb->csum, csum, odd);
+ if (!(msg->type & ICMPV6_INFOMSG_MASK))
+ nf_ct_attach(skb, org_skb);
return 0;
}
@@ -403,6 +407,7 @@ void icmpv6_send(struct sk_buff *skb, int type, int code, __u32 info,
msg.skb = skb;
msg.offset = skb->nh.raw - skb->data;
+ msg.type = type;
len = skb->len - msg.offset;
len = min_t(unsigned int, len, IPV6_MIN_MTU - sizeof(struct ipv6hdr) -sizeof(struct icmp6hdr));
@@ -500,6 +505,7 @@ static void icmpv6_echo_reply(struct sk_buff *skb)
msg.skb = skb;
msg.offset = 0;
+ msg.type = ICMPV6_ECHO_REPLY;
err = ip6_append_data(sk, icmpv6_getfrag, &msg, skb->len + sizeof(struct icmp6hdr),
sizeof(struct icmp6hdr), hlimit, tclass, NULL, &fl,
diff --git a/net/ipv6/netfilter/ip6t_REJECT.c b/net/ipv6/netfilter/ip6t_REJECT.c
index c745717b4ce..0e6d1d4bbd5 100644
--- a/net/ipv6/netfilter/ip6t_REJECT.c
+++ b/net/ipv6/netfilter/ip6t_REJECT.c
@@ -160,6 +160,8 @@ static void send_reset(struct sk_buff *oldskb)
csum_partial((char *)tcph,
sizeof(struct tcphdr), 0));
+ nf_ct_attach(nskb, oldskb);
+
NF_HOOK(PF_INET6, NF_IP6_LOCAL_OUT, nskb, NULL, nskb->dst->dev,
dst_output);
}
diff --git a/net/netfilter/Kconfig b/net/netfilter/Kconfig
index 0e550127fa7..a8e5544da93 100644
--- a/net/netfilter/Kconfig
+++ b/net/netfilter/Kconfig
@@ -126,7 +126,7 @@ config NETFILTER_XT_TARGET_CONNMARK
tristate '"CONNMARK" target support'
depends on NETFILTER_XTABLES
depends on IP_NF_MANGLE || IP6_NF_MANGLE
- depends on (IP_NF_CONNTRACK && IP_NF_CONNTRACK_MARK) || (NF_CONNTRACK_MARK && NF_CONNTRACK_IPV4)
+ depends on (IP_NF_CONNTRACK && IP_NF_CONNTRACK_MARK) || (NF_CONNTRACK_MARK && NF_CONNTRACK)
help
This option adds a `CONNMARK' target, which allows one to manipulate
the connection mark value. Similar to the MARK target, but
@@ -187,7 +187,7 @@ config NETFILTER_XT_MATCH_COMMENT
config NETFILTER_XT_MATCH_CONNBYTES
tristate '"connbytes" per-connection counter match support'
depends on NETFILTER_XTABLES
- depends on (IP_NF_CONNTRACK && IP_NF_CT_ACCT) || NF_CT_ACCT
+ depends on (IP_NF_CONNTRACK && IP_NF_CT_ACCT) || (NF_CT_ACCT && NF_CONNTRACK)
help
This option adds a `connbytes' match, which allows you to match the
number of bytes and/or packets for each direction within a connection.
@@ -198,7 +198,7 @@ config NETFILTER_XT_MATCH_CONNBYTES
config NETFILTER_XT_MATCH_CONNMARK
tristate '"connmark" connection mark match support'
depends on NETFILTER_XTABLES
- depends on (IP_NF_CONNTRACK && IP_NF_CONNTRACK_MARK) || NF_CONNTRACK_MARK
+ depends on (IP_NF_CONNTRACK && IP_NF_CONNTRACK_MARK) || (NF_CONNTRACK_MARK && NF_CONNTRACK)
help
This option adds a `connmark' match, which allows you to match the
connection mark value previously set for the session by `CONNMARK'.
diff --git a/net/netfilter/nf_conntrack_core.c b/net/netfilter/nf_conntrack_core.c
index 0ce337a1d97..d622ddf08bb 100644
--- a/net/netfilter/nf_conntrack_core.c
+++ b/net/netfilter/nf_conntrack_core.c
@@ -1556,6 +1556,8 @@ void nf_conntrack_cleanup(void)
{
int i;
+ ip_ct_attach = NULL;
+
/* This makes sure all current packets have passed through
netfilter framework. Roll on, two-stage module
delete... */
@@ -1715,6 +1717,9 @@ int __init nf_conntrack_init(void)
nf_ct_l3protos[i] = &nf_conntrack_generic_l3proto;
write_unlock_bh(&nf_conntrack_lock);
+ /* For use by REJECT target */
+ ip_ct_attach = __nf_conntrack_attach;
+
/* Set up fake conntrack:
- to never be deleted, not in any hashes */
atomic_set(&nf_conntrack_untracked.ct_general.use, 1);
diff --git a/net/netfilter/nf_conntrack_proto_tcp.c b/net/netfilter/nf_conntrack_proto_tcp.c
index df99138c3b3..6492ed66fb3 100644
--- a/net/netfilter/nf_conntrack_proto_tcp.c
+++ b/net/netfilter/nf_conntrack_proto_tcp.c
@@ -864,7 +864,9 @@ static int csum6(const struct sk_buff *skb, unsigned int dataoff)
{
return csum_ipv6_magic(&skb->nh.ipv6h->saddr, &skb->nh.ipv6h->daddr,
skb->len - dataoff, IPPROTO_TCP,
- skb->ip_summed == CHECKSUM_HW ? skb->csum
+ skb->ip_summed == CHECKSUM_HW
+ ? csum_sub(skb->csum,
+ skb_checksum(skb, 0, dataoff, 0))
: skb_checksum(skb, dataoff, skb->len - dataoff,
0));
}
diff --git a/net/netfilter/nf_conntrack_proto_udp.c b/net/netfilter/nf_conntrack_proto_udp.c
index 4264dd079a1..831d206344e 100644
--- a/net/netfilter/nf_conntrack_proto_udp.c
+++ b/net/netfilter/nf_conntrack_proto_udp.c
@@ -161,7 +161,9 @@ static int csum6(const struct sk_buff *skb, unsigned int dataoff)
{
return csum_ipv6_magic(&skb->nh.ipv6h->saddr, &skb->nh.ipv6h->daddr,
skb->len - dataoff, IPPROTO_UDP,
- skb->ip_summed == CHECKSUM_HW ? skb->csum
+ skb->ip_summed == CHECKSUM_HW
+ ? csum_sub(skb->csum,
+ skb_checksum(skb, 0, dataoff, 0))
: skb_checksum(skb, dataoff, skb->len - dataoff,
0));
}
generated by cgit v1.2.3 (git 2.25.1) at 2024-12-16 11:32:39 +0000