diff options
Diffstat (limited to 'target/linux/realtek/files/net/netfilter/xt_phyport.c')
| -rw-r--r-- | target/linux/realtek/files/net/netfilter/xt_phyport.c | 147 |
1 files changed, 147 insertions, 0 deletions
diff --git a/target/linux/realtek/files/net/netfilter/xt_phyport.c b/target/linux/realtek/files/net/netfilter/xt_phyport.c new file mode 100644 index 000000000..621d5d2ca --- /dev/null +++ b/target/linux/realtek/files/net/netfilter/xt_phyport.c @@ -0,0 +1,147 @@ +/* Kernel module to match MAC address parameters. */ + +/* (C) 1999-2001 Paul `Rusty' Russell + * (C) 2002-2004 Netfilter Core Team <coreteam@netfilter.org> + * + * This program is free software; you can redistribute it and/or modify + * it under the terms of the GNU General Public License version 2 as + * published by the Free Software Foundation. + */ + +#include <linux/module.h> +#include <linux/skbuff.h> +#include <linux/if_ether.h> +#include <linux/etherdevice.h> + +#include <linux/netfilter_ipv4.h> +#include <linux/netfilter_ipv6.h> +#include <linux/netfilter/xt_phyport.h> +#include <linux/netfilter/x_tables.h> +#include <net/dst.h> + +#if 0 //defined(CONFIG_RTL_IPTABLES_RULE_2_ACL) +#include <net/rtl/rtl_types.h> +#include <net/rtl/rtl865x_netif.h> +#endif + + +MODULE_LICENSE("GPL"); +MODULE_AUTHOR("Netfilter Core Team <coreteam@netfilter.org>"); +MODULE_DESCRIPTION("Xtables: MAC address match"); +MODULE_ALIAS("ipt_phyport"); +MODULE_ALIAS("ip6t_phyport"); + +static bool +checkentry(const struct xt_mtchk_param *par) +{ + const struct xt_phyport_info *phyportinfo = par->matchinfo; + + if(phyportinfo->flags & PORT_SRC){ + if (phyportinfo->srcport> 4) { + printk(KERN_WARNING "phy port source port: only supports port number 0~4\n"); + return 0; + } + } + else if(phyportinfo->flags & PORT_DST){ + if (phyportinfo->dstport> 4) { + printk(KERN_WARNING "phy port dest port: only supports port number 0~4\n"); + return 0; + } + } + else{ + printk(KERN_WARNING "wrong phy port flags 0x%x\n", phyportinfo->flags); + return 0; + } + + return 1; +} + +static bool phyport_mt(const struct sk_buff *skb, const struct xt_match_param *par) +{ + const struct xt_phyport_info *info = par->matchinfo; + + if (info->flags & PORT_SRC) { + if((skb->srcPhyPort != info->srcport) ^ (!!(info->flags & PORT_SRC_INV))){ + return false; + } + } + else if (info->flags & PORT_DST) { + if((skb->dstPhyPort != info->dstport) ^ (!!(info->flags & PORT_DST_INV))){ + return false; + } + } + else{ + printk(KERN_WARNING "wrong phy port flags 0x%x\n", info->flags); + return false; + } + + return true; +} + +#if 0 //defined(CONFIG_RTL_IPTABLES_RULE_2_ACL) +static int phyport_match2acl(const char *tablename, + const void *ip, + const struct xt_match *match, + void *matchinfo, + void *acl_rule, + unsigned int *invflags) +{ + + const struct xt_phyport_info *info = matchinfo; + rtl865x_AclRule_t *rule = (rtl865x_AclRule_t *)acl_rule; + if(matchinfo == NULL || rule == NULL) + return 1; + + rule->ruleType_ = RTL865X_ACL_MAC; + + //To initial first + memset(rule->srcMac_.octet, 0, ETH_ALEN); + memset(rule->srcMacMask_.octet, 0, ETH_ALEN); + memset(rule->dstMac_.octet, 0, ETH_ALEN); + memset(rule->dstMacMask_.octet, 0, ETH_ALEN); + + if (info->flags & MAC_SRC) { + memcpy(rule->srcMac_.octet, info->srcaddr.macaddr, ETH_ALEN); + memset(rule->srcMacMask_.octet, 0xff, ETH_ALEN); + } + + if (info->flags & MAC_DST) { + memcpy(rule->dstMac_.octet, info->dstaddr.macaddr, ETH_ALEN); + memset(rule->dstMacMask_.octet, 0xff, ETH_ALEN); + } + + rule->typeLen_ = rule->typeLenMask_ = 0; + + return 0; +} +#endif + +static struct xt_match phyport_mt_reg __read_mostly = { + .name = "phyport", + .revision = 0, + .family = NFPROTO_UNSPEC, + .checkentry = checkentry, + .match = phyport_mt, + .matchsize = sizeof(struct xt_phyport_info), +/* .hooks = (1 << NF_INET_PRE_ROUTING) | (1 << NF_INET_LOCAL_IN) | + (1 << NF_INET_FORWARD), +*/ + .me = THIS_MODULE, +#if 0 //defined(CONFIG_RTL_IPTABLES_RULE_2_ACL) + .match2acl = phyport_match2acl, +#endif + +}; + +static int __init phyport_mt_init(void) +{ + return xt_register_match(&phyport_mt_reg); +} + +static void __exit phyport_mt_exit(void) +{ + xt_unregister_match(&phyport_mt_reg); +} + +module_init(phyport_mt_init); +module_exit(phyport_mt_exit); |