diff options
Diffstat (limited to 'sys/netinet6/ip6_fw.h')
| -rw-r--r-- | sys/netinet6/ip6_fw.h | 182 |
1 files changed, 88 insertions, 94 deletions
diff --git a/sys/netinet6/ip6_fw.h b/sys/netinet6/ip6_fw.h index a356ac3..6b4c922 100644 --- a/sys/netinet6/ip6_fw.h +++ b/sys/netinet6/ip6_fw.h @@ -1,3 +1,6 @@ +/* $FreeBSD$ */ +/* $KAME: ip6_fw.h,v 1.3 2000/04/06 08:30:44 sumikawa Exp $ */ + /* * Copyright (c) 1993 Daniel Boulet * Copyright (c) 1994 Ugen J.S.Antsilevich @@ -11,8 +14,6 @@ * * This software is provided ``AS IS'' without any warranties of any kind. * - * $Id: ip6_fw.h,v 1.1 1999/08/06 14:10:09 itojun Exp $ - * $FreeBSD$ */ #ifndef _IP6_FW_H @@ -34,11 +35,11 @@ */ union ip6_fw_if { - struct in6_addr fu_via_ip6; /* Specified by IPv6 address */ - struct { /* Specified by interface name */ + struct in6_addr fu_via_ip6; /* Specified by IPv6 address */ + struct { /* Specified by interface name */ #define FW_IFNLEN IFNAMSIZ - char name[FW_IFNLEN]; - short unit; /* -1 means match any unit */ + char name[FW_IFNLEN]; + short unit; /* -1 means match any unit */ } fu_via_if; }; @@ -52,95 +53,89 @@ union ip6_fw_if { */ struct ip6_fw { - u_long fw_pcnt,fw_bcnt; /* Packet and byte counters */ - struct in6_addr fw_src, fw_dst; /* Source and destination IPv6 addr */ - /* Mask for src and dest IPv6 addr */ - struct in6_addr fw_smsk, fw_dmsk; - u_short fw_number; /* Rule number */ - u_short fw_flg; /* Flags word */ -#define IPV6_FW_MAX_PORTS 10 /* A reasonable maximum */ - /* Array of port numbers to match */ - u_short fw_pts[IPV6_FW_MAX_PORTS]; - u_char fw_ip6opt,fw_ip6nopt; /* IPv6 options set/unset */ - u_char fw_tcpf,fw_tcpnf; /* TCP flags set/unset */ -#define IPV6_FW_ICMPTYPES_DIM (32 / (sizeof(unsigned) * 8)) - /* ICMP types bitmap */ - unsigned fw_icmp6types[IPV6_FW_ICMPTYPES_DIM]; - long timestamp; /* timestamp (tv_sec) of last match */ - /* Incoming and outgoing interfaces */ - union ip6_fw_if fw_in_if, fw_out_if; - union { - u_short fu_divert_port; /* Divert/tee port (options IP6DIVERT) */ - u_short fu_skipto_rule; /* SKIPTO command rule number */ - u_short fu_reject_code; /* REJECT response code */ - } fw_un; - u_char fw_prot; /* IPv6 protocol */ - u_char fw_nports; /* 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) */ + u_long fw_pcnt,fw_bcnt; /* Packet and byte counters */ + struct in6_addr fw_src, fw_dst; /* Source and destination IPv6 addr */ + struct in6_addr fw_smsk, fw_dmsk; /* Mask for src and dest IPv6 addr */ + u_short fw_number; /* Rule number */ + u_short fw_flg; /* Flags word */ +#define IPV6_FW_MAX_PORTS 10 /* A reasonable maximum */ + u_short fw_pts[IPV6_FW_MAX_PORTS]; /* Array of port numbers to match */ + u_char fw_ip6opt,fw_ip6nopt; /* IPv6 options set/unset */ + u_char fw_tcpf,fw_tcpnf; /* TCP flags set/unset */ +#define IPV6_FW_ICMPTYPES_DIM (32 / (sizeof(unsigned) * 8)) + unsigned fw_icmp6types[IPV6_FW_ICMPTYPES_DIM]; /* ICMP types bitmap */ + long timestamp; /* timestamp (tv_sec) of last match */ + union ip6_fw_if fw_in_if, fw_out_if;/* Incoming and outgoing interfaces */ + union { + u_short fu_divert_port; /* Divert/tee port (options IP6DIVERT) */ + u_short fu_skipto_rule; /* SKIPTO command rule number */ + u_short fu_reject_code; /* REJECT response code */ + } fw_un; + u_char fw_prot; /* IPv6 protocol */ + u_char fw_nports; /* 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 IPV6_FW_GETNSRCP(rule) ((rule)->fw_nports & 0x0f) -#define IPV6_FW_SETNSRCP(rule, n) do { \ +#define IPV6_FW_GETNSRCP(rule) ((rule)->fw_nports & 0x0f) +#define IPV6_FW_SETNSRCP(rule, n) do { \ (rule)->fw_nports &= ~0x0f; \ (rule)->fw_nports |= (n); \ } while (0) -#define IPV6_FW_GETNDSTP(rule) ((rule)->fw_nports >> 4) -#define IPV6_FW_SETNDSTP(rule, n) do { \ +#define IPV6_FW_GETNDSTP(rule) ((rule)->fw_nports >> 4) +#define IPV6_FW_SETNDSTP(rule, n) do { \ (rule)->fw_nports &= ~0xf0; \ (rule)->fw_nports |= (n) << 4;\ } while (0) -#define fw_divert_port fw_un.fu_divert_port -#define fw_skipto_rule fw_un.fu_skipto_rule -#define fw_reject_code fw_un.fu_reject_code +#define fw_divert_port fw_un.fu_divert_port +#define fw_skipto_rule fw_un.fu_skipto_rule +#define fw_reject_code fw_un.fu_reject_code -struct ip6_fw_chain { - LIST_ENTRY(ip6_fw_chain) chain; - struct ip6_fw *rule; +struct ip6_fw_chain { + LIST_ENTRY(ip6_fw_chain) chain; + struct ip6_fw *rule; }; /* * Values for "flags" field . */ -#define IPV6_FW_F_IN 0x0001 /* Check inbound packets */ -#define IPV6_FW_F_OUT 0x0002 /* Check outbound packets */ -#define IPV6_FW_F_IIFACE 0x0004 /* Apply inbound interface test */ -#define IPV6_FW_F_OIFACE 0x0008 /* Apply outbound interface test */ - -#define IPV6_FW_F_COMMAND 0x0070 /* Mask for type of chain entry: */ -#define IPV6_FW_F_DENY 0x0000 /* This is a deny rule */ -#define IPV6_FW_F_REJECT 0x0010 /* Deny and send a response packet */ -#define IPV6_FW_F_ACCEPT 0x0020 /* This is an accept rule */ -#define IPV6_FW_F_COUNT 0x0030 /* This is a count rule */ -#define IPV6_FW_F_DIVERT 0x0040 /* This is a divert rule */ -#define IPV6_FW_F_TEE 0x0050 /* This is a tee rule */ -#define IPV6_FW_F_SKIPTO 0x0060 /* This is a skipto rule */ - -#define IPV6_FW_F_PRN 0x0080 /* Print if this rule matches */ - -#define IPV6_FW_F_SRNG 0x0100 /* The first two src ports are a min * - * and max range (stored in host byte * - * order). */ - -#define IPV6_FW_F_DRNG 0x0200 /* The first two dst ports are a min * +#define IPV6_FW_F_IN 0x0001 /* Check inbound packets */ +#define IPV6_FW_F_OUT 0x0002 /* Check outbound packets */ +#define IPV6_FW_F_IIFACE 0x0004 /* Apply inbound interface test */ +#define IPV6_FW_F_OIFACE 0x0008 /* Apply outbound interface test */ + +#define IPV6_FW_F_COMMAND 0x0070 /* Mask for type of chain entry: */ +#define IPV6_FW_F_DENY 0x0000 /* This is a deny rule */ +#define IPV6_FW_F_REJECT 0x0010 /* Deny and send a response packet */ +#define IPV6_FW_F_ACCEPT 0x0020 /* This is an accept rule */ +#define IPV6_FW_F_COUNT 0x0030 /* This is a count rule */ +#define IPV6_FW_F_DIVERT 0x0040 /* This is a divert rule */ +#define IPV6_FW_F_TEE 0x0050 /* This is a tee rule */ +#define IPV6_FW_F_SKIPTO 0x0060 /* This is a skipto rule */ + +#define IPV6_FW_F_PRN 0x0080 /* Print if this rule matches */ + +#define IPV6_FW_F_SRNG 0x0100 /* The first two src ports are a min * + * and max range (stored in host byte * + * order). */ + +#define IPV6_FW_F_DRNG 0x0200 /* The first two dst ports are a min * * and max range (stored in host byte * * order). */ -/* In interface by name/unit (not IP) */ -#define IPV6_FW_F_IIFNAME 0x0400 -/* Out interface by name/unit (not IP) */ -#define IPV6_FW_F_OIFNAME 0x0800 +#define IPV6_FW_F_IIFNAME 0x0400 /* In interface by name/unit (not IP) */ +#define IPV6_FW_F_OIFNAME 0x0800 /* Out interface by name/unit (not IP) */ -#define IPV6_FW_F_INVSRC 0x1000 /* Invert sense of src check */ -#define IPV6_FW_F_INVDST 0x2000 /* Invert sense of dst check */ +#define IPV6_FW_F_INVSRC 0x1000 /* Invert sense of src check */ +#define IPV6_FW_F_INVDST 0x2000 /* Invert sense of dst check */ -#define IPV6_FW_F_FRAG 0x4000 /* Fragment */ +#define IPV6_FW_F_FRAG 0x4000 /* Fragment */ -#define IPV6_FW_F_ICMPBIT 0x8000 /* ICMP type bitmap is valid */ +#define IPV6_FW_F_ICMPBIT 0x8000 /* ICMP type bitmap is valid */ -#define IPV6_FW_F_MASK 0xFFFF /* All possible flag bits mask */ +#define IPV6_FW_F_MASK 0xFFFF /* All possible flag bits mask */ /* * For backwards compatibility with rules specifying "via iface" but @@ -148,36 +143,35 @@ struct ip6_fw_chain { * of bits to represent this configuration. */ -#define IF6_FW_F_VIAHACK (IPV6_FW_F_IN|IPV6_FW_F_OUT|IPV6_FW_F_IIFACE|\ - IPV6_FW_F_OIFACE) +#define IF6_FW_F_VIAHACK (IPV6_FW_F_IN|IPV6_FW_F_OUT|IPV6_FW_F_IIFACE|IPV6_FW_F_OIFACE) /* * Definitions for REJECT response codes. * Values less than 256 correspond to ICMP unreachable codes. */ -#define IPV6_FW_REJECT_RST 0x0100 /* TCP packets: send RST */ +#define IPV6_FW_REJECT_RST 0x0100 /* TCP packets: send RST */ /* * Definitions for IPv6 option names. */ -#define IPV6_FW_IP6OPT_HOPOPT 0x01 -#define IPV6_FW_IP6OPT_ROUTE 0x02 -#define IPV6_FW_IP6OPT_FRAG 0x04 -#define IPV6_FW_IP6OPT_ESP 0x08 -#define IPV6_FW_IP6OPT_AH 0x10 -#define IPV6_FW_IP6OPT_NONXT 0x20 -#define IPV6_FW_IP6OPT_OPTS 0x40 +#define IPV6_FW_IP6OPT_HOPOPT 0x01 +#define IPV6_FW_IP6OPT_ROUTE 0x02 +#define IPV6_FW_IP6OPT_FRAG 0x04 +#define IPV6_FW_IP6OPT_ESP 0x08 +#define IPV6_FW_IP6OPT_AH 0x10 +#define IPV6_FW_IP6OPT_NONXT 0x20 +#define IPV6_FW_IP6OPT_OPTS 0x40 /* * Definitions for TCP flags. */ -#define IPV6_FW_TCPF_FIN TH_FIN -#define IPV6_FW_TCPF_SYN TH_SYN -#define IPV6_FW_TCPF_RST TH_RST -#define IPV6_FW_TCPF_PSH TH_PUSH -#define IPV6_FW_TCPF_ACK TH_ACK -#define IPV6_FW_TCPF_URG TH_URG -#define IPV6_FW_TCPF_ESTAB 0x40 +#define IPV6_FW_TCPF_FIN TH_FIN +#define IPV6_FW_TCPF_SYN TH_SYN +#define IPV6_FW_TCPF_RST TH_RST +#define IPV6_FW_TCPF_PSH TH_PUSH +#define IPV6_FW_TCPF_ACK TH_ACK +#define IPV6_FW_TCPF_URG TH_URG +#define IPV6_FW_TCPF_ESTAB 0x40 /* * Main firewall chains definitions and global var's definitions. @@ -187,13 +181,13 @@ struct ip6_fw_chain { /* * Function definitions. */ -void ip6_fw_init(void); +void ip6_fw_init(void); /* Firewall hooks */ -struct ip6_hdr; -typedef int ip6_fw_chk_t __P((struct ip6_hdr**, struct ifnet*, +struct ip6_hdr; +typedef int ip6_fw_chk_t __P((struct ip6_hdr**, struct ifnet*, u_short *, struct mbuf**)); -typedef int ip6_fw_ctl_t __P((int, struct mbuf**)); +typedef int ip6_fw_ctl_t __P((int, struct mbuf**)); extern ip6_fw_chk_t *ip6_fw_chk_ptr; extern ip6_fw_ctl_t *ip6_fw_ctl_ptr; |
