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[NETFILTER]: nf_nat: add reference to conntrack from entry of bysource list

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I will split 'struct nf_nat_info' out from conntrack. So I cannot use
'offsetof' to get the pointer to conntrack from it.

Signed-off-by: Yasuyuki Kozakai <yasuyuki.kozakai@toshiba.co.jp>
Signed-off-by: Patrick McHardy <kaber@trash.net>
Signed-off-by: David S. Miller <davem@davemloft.net>
This commit is contained in:
Yasuyuki Kozakai
2007-07-07 22:24:04 -07:00
committed by David S. Miller
parent ceceae1b15
commit e54cbc1f91
2 changed files with 6 additions and 3 deletions
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4
net/ipv4/netfilter/nf_nat_core.c
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@ -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);
}