diff options
Diffstat (limited to 'net/bridge/netfilter/ebt_802_3.c')
-rw-r--r-- | net/bridge/netfilter/ebt_802_3.c | 47 |
1 files changed, 23 insertions, 24 deletions
diff --git a/net/bridge/netfilter/ebt_802_3.c b/net/bridge/netfilter/ebt_802_3.c index 98534025360..bd91dc58d49 100644 --- a/net/bridge/netfilter/ebt_802_3.c +++ b/net/bridge/netfilter/ebt_802_3.c @@ -7,64 +7,63 @@ * May 2003 * */ - +#include <linux/module.h> +#include <linux/netfilter/x_tables.h> #include <linux/netfilter_bridge/ebtables.h> #include <linux/netfilter_bridge/ebt_802_3.h> -#include <linux/module.h> -static int ebt_filter_802_3(const struct sk_buff *skb, const struct net_device *in, - const struct net_device *out, const void *data, unsigned int datalen) +static bool +ebt_802_3_mt(const struct sk_buff *skb, const struct xt_match_param *par) { - const struct ebt_802_3_info *info = data; + const struct ebt_802_3_info *info = par->matchinfo; const struct ebt_802_3_hdr *hdr = ebt_802_3_hdr(skb); __be16 type = hdr->llc.ui.ctrl & IS_UI ? hdr->llc.ui.type : hdr->llc.ni.type; if (info->bitmask & EBT_802_3_SAP) { if (FWINV(info->sap != hdr->llc.ui.ssap, EBT_802_3_SAP)) - return EBT_NOMATCH; + return false; if (FWINV(info->sap != hdr->llc.ui.dsap, EBT_802_3_SAP)) - return EBT_NOMATCH; + return false; } if (info->bitmask & EBT_802_3_TYPE) { if (!(hdr->llc.ui.dsap == CHECK_TYPE && hdr->llc.ui.ssap == CHECK_TYPE)) - return EBT_NOMATCH; + return false; if (FWINV(info->type != type, EBT_802_3_TYPE)) - return EBT_NOMATCH; + return false; } - return EBT_MATCH; + return true; } -static struct ebt_match filter_802_3; -static int ebt_802_3_check(const char *tablename, unsigned int hookmask, - const struct ebt_entry *e, void *data, unsigned int datalen) +static bool ebt_802_3_mt_check(const struct xt_mtchk_param *par) { - const struct ebt_802_3_info *info = data; + const struct ebt_802_3_info *info = par->matchinfo; - if (datalen < sizeof(struct ebt_802_3_info)) - return -EINVAL; if (info->bitmask & ~EBT_802_3_MASK || info->invflags & ~EBT_802_3_MASK) - return -EINVAL; + return false; - return 0; + return true; } -static struct ebt_match filter_802_3 __read_mostly = { - .name = EBT_802_3_MATCH, - .match = ebt_filter_802_3, - .check = ebt_802_3_check, +static struct xt_match ebt_802_3_mt_reg __read_mostly = { + .name = "802_3", + .revision = 0, + .family = NFPROTO_BRIDGE, + .match = ebt_802_3_mt, + .checkentry = ebt_802_3_mt_check, + .matchsize = XT_ALIGN(sizeof(struct ebt_802_3_info)), .me = THIS_MODULE, }; static int __init ebt_802_3_init(void) { - return ebt_register_match(&filter_802_3); + return xt_register_match(&ebt_802_3_mt_reg); } static void __exit ebt_802_3_fini(void) { - ebt_unregister_match(&filter_802_3); + xt_unregister_match(&ebt_802_3_mt_reg); } module_init(ebt_802_3_init); |