summaryrefslogtreecommitdiffstats
path: root/net/ipv4/netfilter
diff options
context:
space:
mode:
Diffstat (limited to 'net/ipv4/netfilter')
-rw-r--r--net/ipv4/netfilter/ip_queue.c6
-rw-r--r--net/ipv4/netfilter/ip_tables.c2
-rw-r--r--net/ipv4/netfilter/ipt_CLUSTERIP.c6
-rw-r--r--net/ipv4/netfilter/ipt_MASQUERADE.c2
-rw-r--r--net/ipv4/netfilter/ipt_ecn.c7
-rw-r--r--net/ipv4/netfilter/nf_conntrack_l3proto_ipv4.c6
-rw-r--r--net/ipv4/netfilter/nf_conntrack_proto_icmp.c2
-rw-r--r--net/ipv4/netfilter/nf_nat_core.c2
-rw-r--r--net/ipv4/netfilter/nf_nat_helper.c2
-rw-r--r--net/ipv4/netfilter/nf_nat_rule.c2
-rw-r--r--net/ipv4/netfilter/nf_nat_standalone.c4
11 files changed, 22 insertions, 19 deletions
diff --git a/net/ipv4/netfilter/ip_queue.c b/net/ipv4/netfilter/ip_queue.c
index d2c1311cb28d..5c9b9d963918 100644
--- a/net/ipv4/netfilter/ip_queue.c
+++ b/net/ipv4/netfilter/ip_queue.c
@@ -203,7 +203,8 @@ ipq_build_packet_message(struct nf_queue_entry *entry, int *errp)
else
pmsg->outdev_name[0] = '\0';
- if (entry->indev && entry->skb->dev) {
+ if (entry->indev && entry->skb->dev &&
+ entry->skb->mac_header != entry->skb->network_header) {
pmsg->hw_type = entry->skb->dev->type;
pmsg->hw_addrlen = dev_parse_header(entry->skb,
pmsg->hw_addr);
@@ -402,7 +403,8 @@ ipq_dev_drop(int ifindex)
static inline void
__ipq_rcv_skb(struct sk_buff *skb)
{
- int status, type, pid, flags, nlmsglen, skblen;
+ int status, type, pid, flags;
+ unsigned int nlmsglen, skblen;
struct nlmsghdr *nlh;
skblen = skb->len;
diff --git a/net/ipv4/netfilter/ip_tables.c b/net/ipv4/netfilter/ip_tables.c
index 764743843503..24e556e83a3b 100644
--- a/net/ipv4/netfilter/ip_tables.c
+++ b/net/ipv4/netfilter/ip_tables.c
@@ -566,7 +566,7 @@ check_entry(const struct ipt_entry *e, const char *name)
const struct xt_entry_target *t;
if (!ip_checkentry(&e->ip)) {
- duprintf("ip check failed %p %s.\n", e, par->match->name);
+ duprintf("ip check failed %p %s.\n", e, name);
return -EINVAL;
}
diff --git a/net/ipv4/netfilter/ipt_CLUSTERIP.c b/net/ipv4/netfilter/ipt_CLUSTERIP.c
index d609ac3cb9a4..5c9e97c79017 100644
--- a/net/ipv4/netfilter/ipt_CLUSTERIP.c
+++ b/net/ipv4/netfilter/ipt_CLUSTERIP.c
@@ -307,7 +307,7 @@ clusterip_tg(struct sk_buff *skb, const struct xt_action_param *par)
* error messages (RELATED) and information requests (see below) */
if (ip_hdr(skb)->protocol == IPPROTO_ICMP &&
(ctinfo == IP_CT_RELATED ||
- ctinfo == IP_CT_RELATED + IP_CT_IS_REPLY))
+ ctinfo == IP_CT_RELATED_REPLY))
return XT_CONTINUE;
/* ip_conntrack_icmp guarantees us that we only have ICMP_ECHO,
@@ -321,12 +321,12 @@ clusterip_tg(struct sk_buff *skb, const struct xt_action_param *par)
ct->mark = hash;
break;
case IP_CT_RELATED:
- case IP_CT_RELATED+IP_CT_IS_REPLY:
+ case IP_CT_RELATED_REPLY:
/* FIXME: we don't handle expectations at the
* moment. they can arrive on a different node than
* the master connection (e.g. FTP passive mode) */
case IP_CT_ESTABLISHED:
- case IP_CT_ESTABLISHED+IP_CT_IS_REPLY:
+ case IP_CT_ESTABLISHED_REPLY:
break;
default:
break;
diff --git a/net/ipv4/netfilter/ipt_MASQUERADE.c b/net/ipv4/netfilter/ipt_MASQUERADE.c
index d2ed9dc74ebc..9931152a78b5 100644
--- a/net/ipv4/netfilter/ipt_MASQUERADE.c
+++ b/net/ipv4/netfilter/ipt_MASQUERADE.c
@@ -60,7 +60,7 @@ masquerade_tg(struct sk_buff *skb, const struct xt_action_param *par)
nat = nfct_nat(ct);
NF_CT_ASSERT(ct && (ctinfo == IP_CT_NEW || ctinfo == IP_CT_RELATED ||
- ctinfo == IP_CT_RELATED + IP_CT_IS_REPLY));
+ ctinfo == IP_CT_RELATED_REPLY));
/* Source address is 0.0.0.0 - locally generated packet that is
* probably not supposed to be masqueraded.
diff --git a/net/ipv4/netfilter/ipt_ecn.c b/net/ipv4/netfilter/ipt_ecn.c
index af6e9c778345..2b57e52c746c 100644
--- a/net/ipv4/netfilter/ipt_ecn.c
+++ b/net/ipv4/netfilter/ipt_ecn.c
@@ -25,7 +25,8 @@ MODULE_LICENSE("GPL");
static inline bool match_ip(const struct sk_buff *skb,
const struct ipt_ecn_info *einfo)
{
- return (ip_hdr(skb)->tos & IPT_ECN_IP_MASK) == einfo->ip_ect;
+ return ((ip_hdr(skb)->tos & IPT_ECN_IP_MASK) == einfo->ip_ect) ^
+ !!(einfo->invert & IPT_ECN_OP_MATCH_IP);
}
static inline bool match_tcp(const struct sk_buff *skb,
@@ -76,8 +77,6 @@ static bool ecn_mt(const struct sk_buff *skb, struct xt_action_param *par)
return false;
if (info->operation & (IPT_ECN_OP_MATCH_ECE|IPT_ECN_OP_MATCH_CWR)) {
- if (ip_hdr(skb)->protocol != IPPROTO_TCP)
- return false;
if (!match_tcp(skb, info, &par->hotdrop))
return false;
}
@@ -97,7 +96,7 @@ static int ecn_mt_check(const struct xt_mtchk_param *par)
return -EINVAL;
if (info->operation & (IPT_ECN_OP_MATCH_ECE|IPT_ECN_OP_MATCH_CWR) &&
- ip->proto != IPPROTO_TCP) {
+ (ip->proto != IPPROTO_TCP || ip->invflags & IPT_INV_PROTO)) {
pr_info("cannot match TCP bits in rule for non-tcp packets\n");
return -EINVAL;
}
diff --git a/net/ipv4/netfilter/nf_conntrack_l3proto_ipv4.c b/net/ipv4/netfilter/nf_conntrack_l3proto_ipv4.c
index 5a03c02af999..de9da21113a1 100644
--- a/net/ipv4/netfilter/nf_conntrack_l3proto_ipv4.c
+++ b/net/ipv4/netfilter/nf_conntrack_l3proto_ipv4.c
@@ -101,7 +101,7 @@ static unsigned int ipv4_confirm(unsigned int hooknum,
/* This is where we call the helper: as the packet goes out. */
ct = nf_ct_get(skb, &ctinfo);
- if (!ct || ctinfo == IP_CT_RELATED + IP_CT_IS_REPLY)
+ if (!ct || ctinfo == IP_CT_RELATED_REPLY)
goto out;
help = nfct_help(ct);
@@ -121,7 +121,9 @@ static unsigned int ipv4_confirm(unsigned int hooknum,
return ret;
}
- if (test_bit(IPS_SEQ_ADJUST_BIT, &ct->status)) {
+ /* adjust seqs for loopback traffic only in outgoing direction */
+ if (test_bit(IPS_SEQ_ADJUST_BIT, &ct->status) &&
+ !nf_is_loopback_packet(skb)) {
typeof(nf_nat_seq_adjust_hook) seq_adjust;
seq_adjust = rcu_dereference(nf_nat_seq_adjust_hook);
diff --git a/net/ipv4/netfilter/nf_conntrack_proto_icmp.c b/net/ipv4/netfilter/nf_conntrack_proto_icmp.c
index 7404bde95994..ab5b27a2916f 100644
--- a/net/ipv4/netfilter/nf_conntrack_proto_icmp.c
+++ b/net/ipv4/netfilter/nf_conntrack_proto_icmp.c
@@ -160,7 +160,7 @@ icmp_error_message(struct net *net, struct nf_conn *tmpl, struct sk_buff *skb,
/* Update skb to refer to this connection */
skb->nfct = &nf_ct_tuplehash_to_ctrack(h)->ct_general;
skb->nfctinfo = *ctinfo;
- return -NF_ACCEPT;
+ return NF_ACCEPT;
}
/* Small and modified version of icmp_rcv */
diff --git a/net/ipv4/netfilter/nf_nat_core.c b/net/ipv4/netfilter/nf_nat_core.c
index 9c71b2755ce3..3346de5d94d0 100644
--- a/net/ipv4/netfilter/nf_nat_core.c
+++ b/net/ipv4/netfilter/nf_nat_core.c
@@ -433,7 +433,7 @@ int nf_nat_icmp_reply_translation(struct nf_conn *ct,
/* Must be RELATED */
NF_CT_ASSERT(skb->nfctinfo == IP_CT_RELATED ||
- skb->nfctinfo == IP_CT_RELATED+IP_CT_IS_REPLY);
+ skb->nfctinfo == IP_CT_RELATED_REPLY);
/* Redirects on non-null nats must be dropped, else they'll
start talking to each other without our translation, and be
diff --git a/net/ipv4/netfilter/nf_nat_helper.c b/net/ipv4/netfilter/nf_nat_helper.c
index 99cfa28b6d38..ebc5f8894f99 100644
--- a/net/ipv4/netfilter/nf_nat_helper.c
+++ b/net/ipv4/netfilter/nf_nat_helper.c
@@ -160,7 +160,7 @@ static void nf_nat_csum(struct sk_buff *skb, const struct iphdr *iph, void *data
if (skb->ip_summed != CHECKSUM_PARTIAL) {
if (!(rt->rt_flags & RTCF_LOCAL) &&
- skb->dev->features & NETIF_F_V4_CSUM) {
+ (!skb->dev || skb->dev->features & NETIF_F_V4_CSUM)) {
skb->ip_summed = CHECKSUM_PARTIAL;
skb->csum_start = skb_headroom(skb) +
skb_network_offset(skb) +
diff --git a/net/ipv4/netfilter/nf_nat_rule.c b/net/ipv4/netfilter/nf_nat_rule.c
index 21c30426480b..733c9abc1cbd 100644
--- a/net/ipv4/netfilter/nf_nat_rule.c
+++ b/net/ipv4/netfilter/nf_nat_rule.c
@@ -53,7 +53,7 @@ ipt_snat_target(struct sk_buff *skb, const struct xt_action_param *par)
/* Connection must be valid and new. */
NF_CT_ASSERT(ct && (ctinfo == IP_CT_NEW || ctinfo == IP_CT_RELATED ||
- ctinfo == IP_CT_RELATED + IP_CT_IS_REPLY));
+ ctinfo == IP_CT_RELATED_REPLY));
NF_CT_ASSERT(par->out != NULL);
return nf_nat_setup_info(ct, &mr->range[0], IP_NAT_MANIP_SRC);
diff --git a/net/ipv4/netfilter/nf_nat_standalone.c b/net/ipv4/netfilter/nf_nat_standalone.c
index 7317bdf1d457..483b76d042da 100644
--- a/net/ipv4/netfilter/nf_nat_standalone.c
+++ b/net/ipv4/netfilter/nf_nat_standalone.c
@@ -116,7 +116,7 @@ nf_nat_fn(unsigned int hooknum,
switch (ctinfo) {
case IP_CT_RELATED:
- case IP_CT_RELATED+IP_CT_IS_REPLY:
+ case IP_CT_RELATED_REPLY:
if (ip_hdr(skb)->protocol == IPPROTO_ICMP) {
if (!nf_nat_icmp_reply_translation(ct, ctinfo,
hooknum, skb))
@@ -144,7 +144,7 @@ nf_nat_fn(unsigned int hooknum,
default:
/* ESTABLISHED */
NF_CT_ASSERT(ctinfo == IP_CT_ESTABLISHED ||
- ctinfo == (IP_CT_ESTABLISHED+IP_CT_IS_REPLY));
+ ctinfo == IP_CT_ESTABLISHED_REPLY);
}
return nf_nat_packet(ct, ctinfo, hooknum, skb);
generated by cgit v1.2.3 (git 2.25.1) at 2024-11-05 13:12:04 +0000