X-Git-Url: https://git.karo-electronics.de/?a=blobdiff_plain;f=net%2Fbridge%2Fnetfilter%2Febt_redirect.c;h=a50ffbe0e4fb823279e60f4e2991089d4304e580;hb=f2ff525c8dae57b3cda51d76443f60f764f34202;hp=c1f9ca293e9c8315c2e21728205cb90a75985876;hpb=abfdf1c48907f78ad7d943b77ea180bf5504564f;p=mv-sheeva.git diff --git a/net/bridge/netfilter/ebt_redirect.c b/net/bridge/netfilter/ebt_redirect.c index c1f9ca293e9..a50ffbe0e4f 100644 --- a/net/bridge/netfilter/ebt_redirect.c +++ b/net/bridge/netfilter/ebt_redirect.c @@ -7,22 +7,23 @@ * April, 2002 * */ - -#include -#include -#include #include #include #include "../br_private.h" +#include +#include +#include +#include -static int ebt_target_redirect(struct sk_buff *skb, unsigned int hooknr, - const struct net_device *in, const struct net_device *out, - const void *data, unsigned int datalen) +static unsigned int +ebt_redirect_tg(struct sk_buff *skb, const struct net_device *in, + const struct net_device *out, unsigned int hooknr, + const struct xt_target *target, const void *data) { const struct ebt_redirect_info *info = data; - if (skb_make_writable(skb, 0)) - return NF_DROP; + if (!skb_make_writable(skb, 0)) + return EBT_DROP; if (hooknr != NF_BR_BROUTING) memcpy(eth_hdr(skb)->h_dest, @@ -33,42 +34,47 @@ static int ebt_target_redirect(struct sk_buff *skb, unsigned int hooknr, return info->target; } -static int ebt_target_redirect_check(const char *tablename, unsigned int hookmask, - const struct ebt_entry *e, void *data, unsigned int datalen) +static bool +ebt_redirect_tg_check(const char *tablename, const void *e, + const struct xt_target *target, void *data, + unsigned int hookmask) { const struct ebt_redirect_info *info = data; - if (datalen != EBT_ALIGN(sizeof(struct ebt_redirect_info))) - return -EINVAL; if (BASE_CHAIN && info->target == EBT_RETURN) - return -EINVAL; + return false; CLEAR_BASE_CHAIN_BIT; if ( (strcmp(tablename, "nat") || hookmask & ~(1 << NF_BR_PRE_ROUTING)) && (strcmp(tablename, "broute") || hookmask & ~(1 << NF_BR_BROUTING)) ) - return -EINVAL; + return false; if (INVALID_TARGET) - return -EINVAL; - return 0; + return false; + return true; } -static struct ebt_target redirect_target = -{ - .name = EBT_REDIRECT_TARGET, - .target = ebt_target_redirect, - .check = ebt_target_redirect_check, +static struct xt_target ebt_redirect_tg_reg __read_mostly = { + .name = "redirect", + .revision = 0, + .family = NFPROTO_BRIDGE, + .hooks = (1 << NF_BR_NUMHOOKS) | (1 << NF_BR_PRE_ROUTING) | + (1 << NF_BR_BROUTING), + .target = ebt_redirect_tg, + .checkentry = ebt_redirect_tg_check, + .targetsize = XT_ALIGN(sizeof(struct ebt_redirect_info)), .me = THIS_MODULE, }; static int __init ebt_redirect_init(void) { - return ebt_register_target(&redirect_target); + return xt_register_target(&ebt_redirect_tg_reg); } static void __exit ebt_redirect_fini(void) { - ebt_unregister_target(&redirect_target); + xt_unregister_target(&ebt_redirect_tg_reg); } module_init(ebt_redirect_init); module_exit(ebt_redirect_fini); +MODULE_DESCRIPTION("Ebtables: Packet redirection to localhost"); MODULE_LICENSE("GPL");