+++ /dev/null
-/*
- * Copyright (c) 1993 Daniel Boulet
- * Copyright (c) 1994 Ugen J.S.Antsilevich
- *
- * Redistribution and use in source forms, with and without modification,
- * are permitted provided that this entire comment appears intact.
- *
- * Redistribution in binary form may occur without any restrictions.
- * Obviously, it would be nice if you gave credit where credit is due
- * but requiring it would be too onerous.
- *
- * This software is provided ``AS IS'' without any warranties of any kind.
- *
- */
-
-/*
- * Format of an IP firewall descriptor
- *
- * fw_src, fw_dst, fw_smsk, fw_dmsk are always stored in network byte order.
- * fw_flg and fw_n*p are stored in host byte order (of course).
- * Port numbers are stored in HOST byte order.
- */
-#ifndef _IP_FW_H
-#define _IP_FW_H
-
-struct ip_fw {
- u_long fw_pcnt,fw_bcnt; /* Packet and byte counters */
- struct in_addr fw_src, fw_dst; /* Source and destination IP addr */
- struct in_addr fw_smsk, fw_dmsk; /* Mask for src and dest IP addr */
- union {
- struct in_addr fu_via_ip;
- struct {
-#define FW_IFNLEN 6 /* To keep structure on 2^x boundary */
- char fu_via_name[FW_IFNLEN];
- short fu_via_unit;
- } fu_via_if;
- } fu_via_un;
-#define fw_via_ip fu_via_un.fu_via_ip
-#define fw_via_name fu_via_un.fu_via_if.fu_via_name
-#define fw_via_unit fu_via_un.fu_via_if.fu_via_unit
- u_short fw_number;
- u_short fw_flg; /* Flags word */
- u_short fw_nsp, fw_ndp; /* N'of src ports and # of dst ports */
- /* in ports array (dst ports follow */
- /* src ports; max of 10 ports in all; */
- /* count of 0 means match all ports) */
-#define IP_FW_MAX_PORTS 10 /* A reasonable maximum */
- u_short fw_pts[IP_FW_MAX_PORTS]; /* Array of port numbers to match */
- u_char fw_ipopt,fw_ipnopt; /* IP options set/unset */
- u_char fw_tcpf,fw_tcpnf; /* TCP flags set/unset */
-#define IP_FW_ICMPTYPES_DIM (256 / (sizeof(unsigned) * 8))
- unsigned fw_icmptypes[IP_FW_ICMPTYPES_DIM]; /* ICMP types bitmap */
- long timestamp; /* timestamp (tv_sec) of last match */
-};
-
-struct ip_fw_chain {
- LIST_ENTRY(ip_fw_chain) chain;
- struct ip_fw *rule;
-};
-
-/*
- * Values for "flags" field .
- */
-
-#define IP_FW_F_ALL 0x0000 /* This is a universal packet rule */
-#define IP_FW_F_TCP 0x0001 /* This is a TCP packet rule */
-#define IP_FW_F_UDP 0x0002 /* This is a UDP packet rule */
-#define IP_FW_F_ICMP 0x0003 /* This is a ICMP packet rule */
-#define IP_FW_F_KIND 0x0003 /* Mask to isolate rule kind */
-
-#define IP_FW_F_IN 0x0004 /* Inbound */
-#define IP_FW_F_OUT 0x0008 /* Outbound */
-
-#define IP_FW_F_ACCEPT 0x0010 /* This is an accept rule */
-#define IP_FW_F_COUNT 0x0020 /* This is an accept rule */
-#define IP_FW_F_PRN 0x0040 /* Print if this rule matches */
-#define IP_FW_F_ICMPRPL 0x0080 /* Send back icmp unreachable packet */
-
-#define IP_FW_F_SRNG 0x0100 /* The first two src ports are a min *
- * and max range (stored in host byte *
- * order). */
-
-#define IP_FW_F_DRNG 0x0200 /* The first two dst ports are a min *
- * and max range (stored in host byte *
- * order). */
-
-#define IP_FW_F_IFNAME 0x0400 /* Use interface name/unit (not IP) */
-
-#define IP_FW_F_FRAG 0x0800 /* Fragment */
-
-#define IP_FW_F_ICMPBIT 0x1000 /* ICMP type bitmap is valid */
-
-#define IP_FW_F_IFUWILD 0x2000 /* Match all interface units */
-
-#define IP_FW_F_MASK 0x3FFF /* All possible flag bits mask */
-
-/*
- * Definitions for IP option names.
- */
-#define IP_FW_IPOPT_LSRR 0x01
-#define IP_FW_IPOPT_SSRR 0x02
-#define IP_FW_IPOPT_RR 0x04
-#define IP_FW_IPOPT_TS 0x08
-
-/*
- * Definitions for TCP flags.
- */
-#define IP_FW_TCPF_FIN TH_FIN
-#define IP_FW_TCPF_SYN TH_SYN
-#define IP_FW_TCPF_RST TH_RST
-#define IP_FW_TCPF_PSH TH_PUSH
-#define IP_FW_TCPF_ACK TH_ACK
-#define IP_FW_TCPF_URG TH_URG
-#define IP_FW_TCPF_ESTAB 0x40
-
-/*
- * New IP firewall options for [gs]etsockopt at the RAW IP level.
- */
-#define IP_FW_BASE_CTL 50
-
-#define IP_FW_ADD (IP_FW_BASE_CTL+0)
-#define IP_FW_DEL (IP_FW_BASE_CTL+1)
-#define IP_FW_FLUSH (IP_FW_BASE_CTL+2)
-#define IP_FW_ZERO (IP_FW_BASE_CTL+3)
-#define IP_FW_GET (IP_FW_BASE_CTL+4)
-
-/*
- * Main firewall chains definitions and global var's definitions.
- */
-#ifdef KERNEL
-
-/*
- * Function pointers.
- */
-extern int (*ip_fw_chk_ptr)(struct mbuf *, struct ip *,struct ifnet *, int dir);
-extern int (*ip_fw_ctl_ptr)(int,struct mbuf **);
-
-/*
- * Function definitions.
- */
-void ip_fw_init(void);
-
-#endif /* KERNEL */
-
-#endif /* _IP_FW_H */
projects / reactos.git / blobdiff