diff options
| -rw-r--r-- | include/net/netfilter/nf_nat.h | 5 | ||||
| -rw-r--r-- | net/ipv4/netfilter/nf_nat_core.c | 4 |
2 files changed, 6 insertions, 3 deletions
diff --git a/include/net/netfilter/nf_nat.h b/include/net/netfilter/nf_nat.h index 47d3dc107a6a..575dc8ac48dc 100644 --- a/include/net/netfilter/nf_nat.h +++ b/include/net/netfilter/nf_nat.h @@ -53,11 +53,14 @@ struct nf_nat_multi_range_compat #include <linux/list.h> #include <linux/netfilter/nf_conntrack_pptp.h> +struct nf_conn; + /* The structure embedded in the conntrack structure. */ struct nf_nat_info { struct list_head bysource; struct nf_nat_seq seq[IP_CT_DIR_MAX]; + struct nf_conn *ct; }; /* per conntrack: nat application helper private data */ @@ -77,8 +80,6 @@ struct nf_conn_nat #endif }; -struct nf_conn; - /* Set up the info structure to map into this range. */ extern unsigned int nf_nat_setup_info(struct nf_conn *ct, const struct nf_nat_range *range, diff --git a/net/ipv4/netfilter/nf_nat_core.c b/net/ipv4/netfilter/nf_nat_core.c index ea02f00d2dac..ac7e8abbbdeb 100644 --- a/net/ipv4/netfilter/nf_nat_core.c +++ b/net/ipv4/netfilter/nf_nat_core.c @@ -97,6 +97,7 @@ static void nf_nat_cleanup_conntrack(struct nf_conn *conn) nat = nfct_nat(conn); write_lock_bh(&nf_nat_lock); list_del(&nat->info.bysource); + nat->info.ct = NULL; write_unlock_bh(&nf_nat_lock); } @@ -169,7 +170,7 @@ find_appropriate_src(const struct nf_conntrack_tuple *tuple, read_lock_bh(&nf_nat_lock); list_for_each_entry(nat, &bysource[h], info.bysource) { - ct = (struct nf_conn *)((char *)nat - offsetof(struct nf_conn, data)); + ct = nat->info.ct; if (same_src(ct, tuple)) { /* Copy source part from reply tuple. */ nf_ct_invert_tuplepr(result, @@ -337,6 +338,7 @@ nf_nat_setup_info(struct nf_conn *ct, srchash = hash_by_src(&ct->tuplehash[IP_CT_DIR_ORIGINAL].tuple); write_lock_bh(&nf_nat_lock); + info->ct = ct; list_add(&info->bysource, &bysource[srchash]); write_unlock_bh(&nf_nat_lock); } |