X-Git-Url: https://err.no/cgi-bin/gitweb.cgi?a=blobdiff_plain;f=net%2Fipv4%2Fnetfilter%2Fnf_nat_rule.c;h=e8b4d0d4439ea51fb0b638ae46b1b5a86ca6aca6;hb=fca515fbfa5ecd9f7b54db311317e2c877d7831a;hp=76ec59ae524db65317a9f3ebc419a9c77eadd75b;hpb=53fdc5185c994ad6def3729a905ac4a47c477c9d;p=linux-2.6 diff --git a/net/ipv4/netfilter/nf_nat_rule.c b/net/ipv4/netfilter/nf_nat_rule.c index 76ec59ae52..e8b4d0d443 100644 --- a/net/ipv4/netfilter/nf_nat_rule.c +++ b/net/ipv4/netfilter/nf_nat_rule.c @@ -24,7 +24,9 @@ #include #include -#define NAT_VALID_HOOKS ((1<range[0], hooknum); + return nf_nat_setup_info(ct, &mr->range[0], IP_NAT_MANIP_SRC); } /* Before 2.6.11 we did implicit source NAT if required. Warn about change. */ @@ -95,7 +98,7 @@ static void warn_if_extra_mangle(__be32 dstip, __be32 srcip) struct flowi fl = { .nl_u = { .ip4_u = { .daddr = dstip } } }; struct rtable *rt; - if (ip_route_output_key(&rt, &fl) != 0) + if (ip_route_output_key(&init_net, &rt, &fl) != 0) return; if (rt->rt_src != srcip && !warned) { @@ -107,7 +110,7 @@ static void warn_if_extra_mangle(__be32 dstip, __be32 srcip) ip_rt_put(rt); } -static unsigned int ipt_dnat_target(struct sk_buff **pskb, +static unsigned int ipt_dnat_target(struct sk_buff *skb, const struct net_device *in, const struct net_device *out, unsigned int hooknum, @@ -118,20 +121,20 @@ static unsigned int ipt_dnat_target(struct sk_buff **pskb, enum ip_conntrack_info ctinfo; const struct nf_nat_multi_range_compat *mr = targinfo; - NF_CT_ASSERT(hooknum == NF_IP_PRE_ROUTING || - hooknum == NF_IP_LOCAL_OUT); + NF_CT_ASSERT(hooknum == NF_INET_PRE_ROUTING || + hooknum == NF_INET_LOCAL_OUT); - ct = nf_ct_get(*pskb, &ctinfo); + ct = nf_ct_get(skb, &ctinfo); /* Connection must be valid and new. */ NF_CT_ASSERT(ct && (ctinfo == IP_CT_NEW || ctinfo == IP_CT_RELATED)); - if (hooknum == NF_IP_LOCAL_OUT && + if (hooknum == NF_INET_LOCAL_OUT && mr->range[0].flags & IP_NAT_RANGE_MAP_IPS) - warn_if_extra_mangle(ip_hdr(*pskb)->daddr, + warn_if_extra_mangle(ip_hdr(skb)->daddr, mr->range[0].min_ip); - return nf_nat_setup_info(ct, &mr->range[0], hooknum); + return nf_nat_setup_info(ct, &mr->range[0], IP_NAT_MANIP_DST); } static bool ipt_snat_checkentry(const char *tablename, @@ -140,7 +143,7 @@ static bool ipt_snat_checkentry(const char *tablename, void *targinfo, unsigned int hook_mask) { - struct nf_nat_multi_range_compat *mr = targinfo; + const struct nf_nat_multi_range_compat *mr = targinfo; /* Must be a valid range */ if (mr->rangesize != 1) { @@ -156,7 +159,7 @@ static bool ipt_dnat_checkentry(const char *tablename, void *targinfo, unsigned int hook_mask) { - struct nf_nat_multi_range_compat *mr = targinfo; + const struct nf_nat_multi_range_compat *mr = targinfo; /* Must be a valid range */ if (mr->rangesize != 1) { @@ -182,29 +185,10 @@ alloc_null_binding(struct nf_conn *ct, unsigned int hooknum) pr_debug("Allocating NULL binding for %p (%u.%u.%u.%u)\n", ct, NIPQUAD(ip)); - return nf_nat_setup_info(ct, &range, hooknum); + return nf_nat_setup_info(ct, &range, HOOK2MANIP(hooknum)); } -unsigned int -alloc_null_binding_confirmed(struct nf_conn *ct, unsigned int hooknum) -{ - __be32 ip - = (HOOK2MANIP(hooknum) == IP_NAT_MANIP_SRC - ? ct->tuplehash[IP_CT_DIR_REPLY].tuple.dst.u3.ip - : ct->tuplehash[IP_CT_DIR_REPLY].tuple.src.u3.ip); - __be16 all - = (HOOK2MANIP(hooknum) == IP_NAT_MANIP_SRC - ? ct->tuplehash[IP_CT_DIR_REPLY].tuple.dst.u.all - : ct->tuplehash[IP_CT_DIR_REPLY].tuple.src.u.all); - struct nf_nat_range range - = { IP_NAT_RANGE_MAP_IPS, ip, ip, { all }, { all } }; - - pr_debug("Allocating NULL binding for confirmed %p (%u.%u.%u.%u)\n", - ct, NIPQUAD(ip)); - return nf_nat_setup_info(ct, &range, hooknum); -} - -int nf_nat_rule_find(struct sk_buff **pskb, +int nf_nat_rule_find(struct sk_buff *skb, unsigned int hooknum, const struct net_device *in, const struct net_device *out, @@ -212,7 +196,7 @@ int nf_nat_rule_find(struct sk_buff **pskb, { int ret; - ret = ipt_do_table(pskb, hooknum, in, out, &nat_table); + ret = ipt_do_table(skb, hooknum, in, out, nat_table); if (ret == NF_ACCEPT) { if (!nf_nat_initialized(ct, HOOK2MANIP(hooknum))) @@ -227,7 +211,7 @@ static struct xt_target ipt_snat_reg __read_mostly = { .target = ipt_snat_target, .targetsize = sizeof(struct nf_nat_multi_range_compat), .table = "nat", - .hooks = 1 << NF_IP_POST_ROUTING, + .hooks = 1 << NF_INET_POST_ROUTING, .checkentry = ipt_snat_checkentry, .family = AF_INET, }; @@ -237,7 +221,7 @@ static struct xt_target ipt_dnat_reg __read_mostly = { .target = ipt_dnat_target, .targetsize = sizeof(struct nf_nat_multi_range_compat), .table = "nat", - .hooks = (1 << NF_IP_PRE_ROUTING) | (1 << NF_IP_LOCAL_OUT), + .hooks = (1 << NF_INET_PRE_ROUTING) | (1 << NF_INET_LOCAL_OUT), .checkentry = ipt_dnat_checkentry, .family = AF_INET, }; @@ -246,9 +230,10 @@ int __init nf_nat_rule_init(void) { int ret; - ret = ipt_register_table(&nat_table, &nat_initial_table.repl); - if (ret != 0) - return ret; + nat_table = ipt_register_table(&init_net, &__nat_table, + &nat_initial_table.repl); + if (IS_ERR(nat_table)) + return PTR_ERR(nat_table); ret = xt_register_target(&ipt_snat_reg); if (ret != 0) goto unregister_table; @@ -262,7 +247,7 @@ int __init nf_nat_rule_init(void) unregister_snat: xt_unregister_target(&ipt_snat_reg); unregister_table: - ipt_unregister_table(&nat_table); + ipt_unregister_table(nat_table); return ret; } @@ -271,5 +256,5 @@ void nf_nat_rule_cleanup(void) { xt_unregister_target(&ipt_dnat_reg); xt_unregister_target(&ipt_snat_reg); - ipt_unregister_table(&nat_table); + ipt_unregister_table(nat_table); }