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-rw-r--r--include/linux/netdevice.h6
-rw-r--r--net/ipv4/netfilter/ip_conntrack_core.c6
-rw-r--r--net/ipv4/netfilter/ip_conntrack_netlink.c1
-rw-r--r--net/ipv4/netfilter/ipt_REJECT.c16
-rw-r--r--net/netfilter/nf_conntrack_core.c19
-rw-r--r--net/netfilter/nf_conntrack_netlink.c9
6 files changed, 35 insertions, 22 deletions
diff --git a/include/linux/netdevice.h b/include/linux/netdevice.h
index 9264139bd8df..83b8c4f1d69d 100644
--- a/include/linux/netdevice.h
+++ b/include/linux/netdevice.h
@@ -93,8 +93,10 @@ struct netpoll_info;
#endif
#endif
-#if !defined(CONFIG_NET_IPIP) && \
- !defined(CONFIG_IPV6) && !defined(CONFIG_IPV6_MODULE)
+#if !defined(CONFIG_NET_IPIP) && !defined(CONFIG_NET_IPIP_MODULE) && \
+ !defined(CONFIG_NET_IPGRE) && !defined(CONFIG_NET_IPGRE_MODULE) && \
+ !defined(CONFIG_IPV6_SIT) && !defined(CONFIG_IPV6_SIT_MODULE) && \
+ !defined(CONFIG_IPV6_TUNNEL) && !defined(CONFIG_IPV6_TUNNEL_MODULE)
#define MAX_HEADER LL_MAX_HEADER
#else
#define MAX_HEADER (LL_MAX_HEADER + 48)
diff --git a/net/ipv4/netfilter/ip_conntrack_core.c b/net/ipv4/netfilter/ip_conntrack_core.c
index 143c4668538b..8b848aa77bfc 100644
--- a/net/ipv4/netfilter/ip_conntrack_core.c
+++ b/net/ipv4/netfilter/ip_conntrack_core.c
@@ -225,10 +225,8 @@ __ip_conntrack_expect_find(const struct ip_conntrack_tuple *tuple)
struct ip_conntrack_expect *i;
list_for_each_entry(i, &ip_conntrack_expect_list, list) {
- if (ip_ct_tuple_mask_cmp(tuple, &i->tuple, &i->mask)) {
- atomic_inc(&i->use);
+ if (ip_ct_tuple_mask_cmp(tuple, &i->tuple, &i->mask))
return i;
- }
}
return NULL;
}
@@ -241,6 +239,8 @@ ip_conntrack_expect_find(const struct ip_conntrack_tuple *tuple)
read_lock_bh(&ip_conntrack_lock);
i = __ip_conntrack_expect_find(tuple);
+ if (i)
+ atomic_inc(&i->use);
read_unlock_bh(&ip_conntrack_lock);
return i;
diff --git a/net/ipv4/netfilter/ip_conntrack_netlink.c b/net/ipv4/netfilter/ip_conntrack_netlink.c
index 262d0d44ec1b..55f0ae641081 100644
--- a/net/ipv4/netfilter/ip_conntrack_netlink.c
+++ b/net/ipv4/netfilter/ip_conntrack_netlink.c
@@ -153,6 +153,7 @@ ctnetlink_dump_protoinfo(struct sk_buff *skb, const struct ip_conntrack *ct)
return ret;
nfattr_failure:
+ ip_conntrack_proto_put(proto);
return -1;
}
diff --git a/net/ipv4/netfilter/ipt_REJECT.c b/net/ipv4/netfilter/ipt_REJECT.c
index ad0312d0e4fd..264763adc39b 100644
--- a/net/ipv4/netfilter/ipt_REJECT.c
+++ b/net/ipv4/netfilter/ipt_REJECT.c
@@ -114,6 +114,14 @@ static void send_reset(struct sk_buff *oldskb, int hook)
tcph->window = 0;
tcph->urg_ptr = 0;
+ /* Adjust TCP checksum */
+ tcph->check = 0;
+ tcph->check = tcp_v4_check(tcph, sizeof(struct tcphdr),
+ nskb->nh.iph->saddr,
+ nskb->nh.iph->daddr,
+ csum_partial((char *)tcph,
+ sizeof(struct tcphdr), 0));
+
/* Set DF, id = 0 */
nskb->nh.iph->frag_off = htons(IP_DF);
nskb->nh.iph->id = 0;
@@ -129,14 +137,8 @@ static void send_reset(struct sk_buff *oldskb, int hook)
if (ip_route_me_harder(&nskb, addr_type))
goto free_nskb;
- /* Adjust TCP checksum */
nskb->ip_summed = CHECKSUM_NONE;
- tcph->check = 0;
- tcph->check = tcp_v4_check(tcph, sizeof(struct tcphdr),
- nskb->nh.iph->saddr,
- nskb->nh.iph->daddr,
- csum_partial((char *)tcph,
- sizeof(struct tcphdr), 0));
+
/* Adjust IP TTL */
nskb->nh.iph->ttl = dst_metric(nskb->dst, RTAX_HOPLIMIT);
diff --git a/net/netfilter/nf_conntrack_core.c b/net/netfilter/nf_conntrack_core.c
index 836541e509fe..de0567b1f422 100644
--- a/net/netfilter/nf_conntrack_core.c
+++ b/net/netfilter/nf_conntrack_core.c
@@ -469,10 +469,8 @@ __nf_conntrack_expect_find(const struct nf_conntrack_tuple *tuple)
struct nf_conntrack_expect *i;
list_for_each_entry(i, &nf_conntrack_expect_list, list) {
- if (nf_ct_tuple_mask_cmp(tuple, &i->tuple, &i->mask)) {
- atomic_inc(&i->use);
+ if (nf_ct_tuple_mask_cmp(tuple, &i->tuple, &i->mask))
return i;
- }
}
return NULL;
}
@@ -485,6 +483,8 @@ nf_conntrack_expect_find(const struct nf_conntrack_tuple *tuple)
read_lock_bh(&nf_conntrack_lock);
i = __nf_conntrack_expect_find(tuple);
+ if (i)
+ atomic_inc(&i->use);
read_unlock_bh(&nf_conntrack_lock);
return i;
@@ -893,12 +893,6 @@ __nf_conntrack_alloc(const struct nf_conntrack_tuple *orig,
memset(conntrack, 0, nf_ct_cache[features].size);
conntrack->features = features;
- if (helper) {
- struct nf_conn_help *help = nfct_help(conntrack);
- NF_CT_ASSERT(help);
- help->helper = helper;
- }
-
atomic_set(&conntrack->ct_general.use, 1);
conntrack->ct_general.destroy = destroy_conntrack;
conntrack->tuplehash[IP_CT_DIR_ORIGINAL].tuple = *orig;
@@ -982,8 +976,13 @@ init_conntrack(const struct nf_conntrack_tuple *tuple,
#endif
nf_conntrack_get(&conntrack->master->ct_general);
NF_CT_STAT_INC(expect_new);
- } else
+ } else {
+ struct nf_conn_help *help = nfct_help(conntrack);
+
+ if (help)
+ help->helper = __nf_ct_helper_find(&repl_tuple);
NF_CT_STAT_INC(new);
+ }
/* Overload tuple linked list to put us in unconfirmed list. */
list_add(&conntrack->tuplehash[IP_CT_DIR_ORIGINAL].list, &unconfirmed);
diff --git a/net/netfilter/nf_conntrack_netlink.c b/net/netfilter/nf_conntrack_netlink.c
index bd0156a28ecd..ab67c2be2b5d 100644
--- a/net/netfilter/nf_conntrack_netlink.c
+++ b/net/netfilter/nf_conntrack_netlink.c
@@ -161,6 +161,7 @@ ctnetlink_dump_protoinfo(struct sk_buff *skb, const struct nf_conn *ct)
return ret;
nfattr_failure:
+ nf_ct_proto_put(proto);
return -1;
}
@@ -949,6 +950,7 @@ ctnetlink_create_conntrack(struct nfattr *cda[],
{
struct nf_conn *ct;
int err = -EINVAL;
+ struct nf_conn_help *help;
ct = nf_conntrack_alloc(otuple, rtuple);
if (ct == NULL || IS_ERR(ct))
@@ -976,9 +978,16 @@ ctnetlink_create_conntrack(struct nfattr *cda[],
ct->mark = ntohl(*(u_int32_t *)NFA_DATA(cda[CTA_MARK-1]));
#endif
+ help = nfct_help(ct);
+ if (help)
+ help->helper = nf_ct_helper_find_get(rtuple);
+
add_timer(&ct->timeout);
nf_conntrack_hash_insert(ct);
+ if (help && help->helper)
+ nf_ct_helper_put(help->helper);
+
return 0;
err:
generated by cgit v1.2.3 (git 2.25.1) at 2024-12-26 15:08:32 +0000