X-Git-Url: https://git.saurik.com/apple/xnu.git/blobdiff_plain/b0d623f7f2ae71ed96e60569f61f9a9a27016e80..4ba76501152d51ccb5647018f3192c6096367d48:/bsd/netinet/ip_fw.h diff --git a/bsd/netinet/ip_fw.h b/bsd/netinet/ip_fw.h index 6755fab56..75f519064 100644 --- a/bsd/netinet/ip_fw.h +++ b/bsd/netinet/ip_fw.h @@ -1,8 +1,8 @@ /* - * Copyright (c) 2008 Apple Computer, Inc. All rights reserved. + * Copyright (c) 2008-2013 Apple Inc. All rights reserved. * * @APPLE_OSREFERENCE_LICENSE_HEADER_START@ - * + * * This file contains Original Code and/or Modifications of Original Code * as defined in and that are subject to the Apple Public Source License * Version 2.0 (the 'License'). You may not use this file except in @@ -11,10 +11,10 @@ * unlawful or unlicensed copies of an Apple operating system, or to * circumvent, violate, or enable the circumvention or violation of, any * terms of an Apple operating system software license agreement. - * + * * Please obtain a copy of the License at * http://www.opensource.apple.com/apsl/ and read it before using this file. - * + * * The Original Code and all software distributed under the License are * distributed on an 'AS IS' basis, WITHOUT WARRANTY OF ANY KIND, EITHER * EXPRESS OR IMPLIED, AND APPLE HEREBY DISCLAIMS ALL SUCH WARRANTIES, @@ -22,7 +22,7 @@ * FITNESS FOR A PARTICULAR PURPOSE, QUIET ENJOYMENT OR NON-INFRINGEMENT. * Please see the License for the specific language governing rights and * limitations under the License. - * + * * @APPLE_OSREFERENCE_LICENSE_HEADER_END@ */ /* @@ -42,6 +42,7 @@ #ifndef _IP_FW_H #define _IP_FW_H +#ifdef __APPLE_API_OBSOLETE #include @@ -50,9 +51,9 @@ #else /* !IPFW2, good old ipfw */ #include -#include /* u_ types */ +#include /* u_ types */ -#define IP_FW_CURRENT_API_VERSION 20 /* Version of this API */ +#define IP_FW_CURRENT_API_VERSION 20 /* Version of this API */ /* @@ -69,12 +70,12 @@ */ union ip_fw_if { - struct in_addr fu_via_ip; /* Specified by IP address */ - struct { /* Specified by interface name */ + struct in_addr fu_via_ip; /* Specified by IP address */ + struct { /* Specified by interface name */ #define FW_IFNLEN 10 /* need room ! was IFNAMSIZ */ - char name[FW_IFNLEN]; - short unit; /* -1 means match any unit */ - } fu_via_if; + char name[FW_IFNLEN]; + short unit; /* -1 means match any unit */ + } fu_via_if; }; /* @@ -86,81 +87,81 @@ union ip_fw_if { */ struct ip_fw { - u_int32_t version; /* Version of this structure. Should always be */ - /* set to IP_FW_CURRENT_API_VERSION by clients. */ - void *context; /* Context that is usable by user processes to */ - /* identify this rule. */ - u_int64_t 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 */ - u_short fw_number; /* Rule number */ - u_int fw_flg; /* Flags word */ -#define IP_FW_MAX_PORTS 10 /* A reasonable maximum */ + u_int32_t version; /* Version of this structure. Should always be */ + /* set to IP_FW_CURRENT_API_VERSION by clients. */ + void *context; /* Context that is usable by user processes to */ + /* identify this rule. */ + u_int64_t 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 */ + u_short fw_number; /* Rule number */ + u_int fw_flg; /* Flags word */ +#define IP_FW_MAX_PORTS 10 /* A reasonable maximum */ union { - u_short fw_pts[IP_FW_MAX_PORTS]; /* Array of port numbers to match */ -#define IP_FW_ICMPTYPES_MAX 128 -#define IP_FW_ICMPTYPES_DIM (IP_FW_ICMPTYPES_MAX / (sizeof(unsigned) * 8)) - unsigned fw_icmptypes[IP_FW_ICMPTYPES_DIM]; /* ICMP types bitmap */ + u_short fw_pts[IP_FW_MAX_PORTS]; /* Array of port numbers to match */ +#define IP_FW_ICMPTYPES_MAX 128 +#define IP_FW_ICMPTYPES_DIM (IP_FW_ICMPTYPES_MAX / (sizeof(unsigned) * 8)) + unsigned fw_icmptypes[IP_FW_ICMPTYPES_DIM]; /* ICMP types bitmap */ } fw_uar; - u_int fw_ipflg; /* IP flags word */ - u_char fw_ipopt,fw_ipnopt; /* IP options set/unset */ - u_char fw_tcpopt,fw_tcpnopt; /* TCP options set/unset */ - u_char fw_tcpf,fw_tcpnf; /* TCP flags set/unset */ - long timestamp; /* timestamp (tv_sec) of last match */ - union ip_fw_if fw_in_if, fw_out_if; /* Incoming and outgoing interfaces */ - union { - u_short fu_divert_port; /* Divert/tee port (options IPDIVERT) */ - u_short fu_pipe_nr; /* queue number (option DUMMYNET) */ - u_short fu_skipto_rule; /* SKIPTO command rule number */ - u_short fu_reject_code; /* REJECT response code */ - struct sockaddr_in fu_fwd_ip; - } fw_un; - u_char fw_prot; /* IP protocol */ + u_int fw_ipflg; /* IP flags word */ + u_char fw_ipopt, fw_ipnopt; /* IP options set/unset */ + u_char fw_tcpopt, fw_tcpnopt; /* TCP options set/unset */ + u_char fw_tcpf, fw_tcpnf; /* TCP flags set/unset */ + long timestamp; /* timestamp (tv_sec) of last match */ + union ip_fw_if fw_in_if, fw_out_if; /* Incoming and outgoing interfaces */ + union { + u_short fu_divert_port; /* Divert/tee port (options IPDIVERT) */ + u_short fu_pipe_nr; /* queue number (option DUMMYNET) */ + u_short fu_skipto_rule; /* SKIPTO command rule number */ + u_short fu_reject_code; /* REJECT response code */ + struct sockaddr_in fu_fwd_ip; + } fw_un; + u_char fw_prot; /* IP protocol */ /* * 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_char fw_nports; - void *pipe_ptr; /* flow_set ptr for dummynet pipe */ - void *next_rule_ptr ; /* next rule in case of match */ - uid_t fw_uid; /* uid to match */ - int fw_logamount; /* amount to log */ - u_int64_t fw_loghighest; /* highest number packet to log */ + u_char fw_nports; + void *pipe_ptr; /* flow_set ptr for dummynet pipe */ + void *next_rule_ptr; /* next rule in case of match */ + uid_t fw_uid; /* uid to match */ + int fw_logamount; /* amount to log */ + u_int64_t fw_loghighest; /* highest number packet to log */ }; /* * extended ipfw structure... some fields in the original struct * can be used to pass parameters up/down, namely pointers * void *pipe_ptr - * void *next_rule_ptr + * void *next_rule_ptr * some others can be used to pass parameters down, namely counters etc. * u_int64_t fw_pcnt,fw_bcnt; * long timestamp; */ struct ip_fw_ext { /* extended structure */ - struct ip_fw rule; /* must be at offset 0 */ - long dont_match_prob; /* 0x7fffffff means 1.0, always fail */ - u_int dyn_type; /* type for dynamic rule */ + struct ip_fw rule; /* must be at offset 0 */ + long dont_match_prob; /* 0x7fffffff means 1.0, always fail */ + u_int dyn_type;/* type for dynamic rule */ }; -#define IP_FW_GETNSRCP(rule) ((rule)->fw_nports & 0x0f) -#define IP_FW_SETNSRCP(rule, n) do { \ - (rule)->fw_nports &= ~0x0f; \ - (rule)->fw_nports |= (n); \ - } while (0) -#define IP_FW_GETNDSTP(rule) ((rule)->fw_nports >> 4) -#define IP_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_pipe_nr fw_un.fu_pipe_nr -#define fw_fwd_ip fw_un.fu_fwd_ip +#define IP_FW_GETNSRCP(rule) ((rule)->fw_nports & 0x0f) +#define IP_FW_SETNSRCP(rule, n) do { \ + (rule)->fw_nports &= ~0x0f; \ + (rule)->fw_nports |= (n); \ + } while (0) +#define IP_FW_GETNDSTP(rule) ((rule)->fw_nports >> 4) +#define IP_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_pipe_nr fw_un.fu_pipe_nr +#define fw_fwd_ip fw_un.fu_fwd_ip struct ip_fw_chain { LIST_ENTRY(ip_fw_chain) next; @@ -171,88 +172,88 @@ struct ip_fw_chain { * Flow mask/flow id for each queue. */ struct ipfw_flow_id { - u_int32_t dst_ip, src_ip ; - u_int16_t dst_port, src_port ; - u_int8_t proto ; - u_int8_t flags ; /* protocol-specific flags */ -} ; + u_int32_t dst_ip, src_ip; + u_int16_t dst_port, src_port; + u_int8_t proto; + u_int8_t flags; /* protocol-specific flags */ +}; /* * dynamic ipfw rule */ struct ipfw_dyn_rule { - struct ipfw_dyn_rule *next ; - - struct ipfw_flow_id id ; - struct ipfw_flow_id mask ; - struct ip_fw_chain *chain ; /* pointer to parent rule */ - u_int32_t type ; /* rule type */ - u_int32_t expire ; /* expire time */ - u_int64_t pcnt, bcnt; /* match counters */ - u_int32_t bucket ; /* which bucket in hash table */ - u_int32_t state ; /* state of this rule (typ. a */ - /* combination of TCP flags) */ -} ; + struct ipfw_dyn_rule *next; + + struct ipfw_flow_id id; + struct ipfw_flow_id mask; + struct ip_fw_chain *chain; /* pointer to parent rule */ + u_int32_t type; /* rule type */ + u_int32_t expire; /* expire time */ + u_int64_t pcnt, bcnt; /* match counters */ + u_int32_t bucket; /* which bucket in hash table */ + u_int32_t state; /* state of this rule (typ. a */ + /* combination of TCP flags) */ +}; /* * Values for "flags" field . */ -#define IP_FW_F_COMMAND 0x000000ff /* Mask for type of chain entry: */ -#define IP_FW_F_DENY 0x00000000 /* This is a deny rule */ -#define IP_FW_F_REJECT 0x00000001 /* Deny and send a response packet */ -#define IP_FW_F_ACCEPT 0x00000002 /* This is an accept rule */ -#define IP_FW_F_COUNT 0x00000003 /* This is a count rule */ -#define IP_FW_F_DIVERT 0x00000004 /* This is a divert rule */ -#define IP_FW_F_TEE 0x00000005 /* This is a tee rule */ -#define IP_FW_F_SKIPTO 0x00000006 /* This is a skipto rule */ -#define IP_FW_F_FWD 0x00000007 /* This is a "change forwarding address" rule */ -#define IP_FW_F_PIPE 0x00000008 /* This is a dummynet rule */ -#define IP_FW_F_QUEUE 0x00000009 /* This is a dummynet queue */ +#define IP_FW_F_COMMAND 0x000000ff /* Mask for type of chain entry: */ +#define IP_FW_F_DENY 0x00000000 /* This is a deny rule */ +#define IP_FW_F_REJECT 0x00000001 /* Deny and send a response packet */ +#define IP_FW_F_ACCEPT 0x00000002 /* This is an accept rule */ +#define IP_FW_F_COUNT 0x00000003 /* This is a count rule */ +#define IP_FW_F_DIVERT 0x00000004 /* This is a divert rule */ +#define IP_FW_F_TEE 0x00000005 /* This is a tee rule */ +#define IP_FW_F_SKIPTO 0x00000006 /* This is a skipto rule */ +#define IP_FW_F_FWD 0x00000007 /* This is a "change forwarding address" rule */ +#define IP_FW_F_PIPE 0x00000008 /* This is a dummynet rule */ +#define IP_FW_F_QUEUE 0x00000009 /* This is a dummynet queue */ -#define IP_FW_F_IN 0x00000100 /* Check inbound packets */ -#define IP_FW_F_OUT 0x00000200 /* Check outbound packets */ -#define IP_FW_F_IIFACE 0x00000400 /* Apply inbound interface test */ -#define IP_FW_F_OIFACE 0x00000800 /* Apply outbound interface test */ +#define IP_FW_F_IN 0x00000100 /* Check inbound packets */ +#define IP_FW_F_OUT 0x00000200 /* Check outbound packets */ +#define IP_FW_F_IIFACE 0x00000400 /* Apply inbound interface test */ +#define IP_FW_F_OIFACE 0x00000800 /* Apply outbound interface test */ -#define IP_FW_F_PRN 0x00001000 /* Print if this rule matches */ +#define IP_FW_F_PRN 0x00001000 /* Print if this rule matches */ -#define IP_FW_F_SRNG 0x00002000 /* The first two src ports are a min * - * and max range (stored in host byte * - * order). */ +#define IP_FW_F_SRNG 0x00002000 /* The first two src ports are a min * + * and max range (stored in host byte * + * order). */ -#define IP_FW_F_DRNG 0x00004000 /* The first two dst ports are a min * - * and max range (stored in host byte * - * order). */ +#define IP_FW_F_DRNG 0x00004000 /* The first two dst ports are a min * + * and max range (stored in host byte * + * order). */ -#define IP_FW_F_FRAG 0x00008000 /* Fragment */ +#define IP_FW_F_FRAG 0x00008000 /* Fragment */ -#define IP_FW_F_IIFNAME 0x00010000 /* In interface by name/unit (not IP) */ -#define IP_FW_F_OIFNAME 0x00020000 /* Out interface by name/unit (not IP) */ +#define IP_FW_F_IIFNAME 0x00010000 /* In interface by name/unit (not IP) */ +#define IP_FW_F_OIFNAME 0x00020000 /* Out interface by name/unit (not IP) */ -#define IP_FW_F_INVSRC 0x00040000 /* Invert sense of src check */ -#define IP_FW_F_INVDST 0x00080000 /* Invert sense of dst check */ +#define IP_FW_F_INVSRC 0x00040000 /* Invert sense of src check */ +#define IP_FW_F_INVDST 0x00080000 /* Invert sense of dst check */ -#define IP_FW_F_ICMPBIT 0x00100000 /* ICMP type bitmap is valid */ +#define IP_FW_F_ICMPBIT 0x00100000 /* ICMP type bitmap is valid */ -#define IP_FW_F_UID 0x00200000 /* filter by uid */ +#define IP_FW_F_UID 0x00200000 /* filter by uid */ -#define IP_FW_F_RND_MATCH 0x00800000 /* probabilistic rule match */ -#define IP_FW_F_SMSK 0x01000000 /* src-port + mask */ -#define IP_FW_F_DMSK 0x02000000 /* dst-port + mask */ -#define IP_FW_BRIDGED 0x04000000 /* only match bridged packets */ -#define IP_FW_F_KEEP_S 0x08000000 /* keep state */ -#define IP_FW_F_CHECK_S 0x10000000 /* check state */ +#define IP_FW_F_RND_MATCH 0x00800000 /* probabilistic rule match */ +#define IP_FW_F_SMSK 0x01000000 /* src-port + mask */ +#define IP_FW_F_DMSK 0x02000000 /* dst-port + mask */ +#define IP_FW_BRIDGED 0x04000000 /* only match bridged packets */ +#define IP_FW_F_KEEP_S 0x08000000 /* keep state */ +#define IP_FW_F_CHECK_S 0x10000000 /* check state */ -#define IP_FW_F_SME 0x20000000 /* source = me */ -#define IP_FW_F_DME 0x40000000 /* destination = me */ +#define IP_FW_F_SME 0x20000000 /* source = me */ +#define IP_FW_F_DME 0x40000000 /* destination = me */ -#define IP_FW_F_MASK 0x7FFFFFFF /* All possible flag bits mask */ +#define IP_FW_F_MASK 0x7FFFFFFF /* All possible flag bits mask */ /* * Flags for the 'fw_ipflg' field, for comparing values of ip and its protocols. */ -#define IP_FW_IF_TCPEST 0x00000020 /* established TCP connection */ -#define IP_FW_IF_TCPMSK 0x00000020 /* mask of all TCP values */ +#define IP_FW_IF_TCPEST 0x00000020 /* established TCP connection */ +#define IP_FW_IF_TCPMSK 0x00000020 /* mask of all TCP values */ /* * For backwards compatibility with rules specifying "via iface" but @@ -260,49 +261,49 @@ struct ipfw_dyn_rule { * of bits to represent this configuration. */ -#define IF_FW_F_VIAHACK (IP_FW_F_IN|IP_FW_F_OUT|IP_FW_F_IIFACE|IP_FW_F_OIFACE) +#define IF_FW_F_VIAHACK (IP_FW_F_IN|IP_FW_F_OUT|IP_FW_F_IIFACE|IP_FW_F_OIFACE) /* * Definitions for REJECT response codes. * Values less than 256 correspond to ICMP unreachable codes. */ -#define IP_FW_REJECT_RST 0x0100 /* TCP packets: send RST */ +#define IP_FW_REJECT_RST 0x0100 /* TCP packets: send RST */ /* * 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 +#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 option names. */ -#define IP_FW_TCPOPT_MSS 0x01 -#define IP_FW_TCPOPT_WINDOW 0x02 -#define IP_FW_TCPOPT_SACK 0x04 -#define IP_FW_TCPOPT_TS 0x08 -#define IP_FW_TCPOPT_CC 0x10 +#define IP_FW_TCPOPT_MSS 0x01 +#define IP_FW_TCPOPT_WINDOW 0x02 +#define IP_FW_TCPOPT_SACK 0x04 +#define IP_FW_TCPOPT_TS 0x08 +#define IP_FW_TCPOPT_CC 0x10 /* * 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_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 /* * Main firewall chains definitions and global var's definitions. */ -#ifdef KERNEL_PRIVATE +#ifdef BSD_KERNEL_PRIVATE -#define IP_FW_PORT_DYNT_FLAG 0x10000 -#define IP_FW_PORT_TEE_FLAG 0x20000 -#define IP_FW_PORT_DENY_FLAG 0x40000 +#define IP_FW_PORT_DYNT_FLAG 0x10000 +#define IP_FW_PORT_TEE_FLAG 0x20000 +#define IP_FW_PORT_DENY_FLAG 0x40000 /* * Function definitions. @@ -312,16 +313,17 @@ void ip_fw_init(void); /* Firewall hooks */ struct ip; struct sockopt; -typedef int ip_fw_chk_t(struct ip **, int, struct ifnet *, u_int16_t *, - struct mbuf **, struct ip_fw_chain **, struct sockaddr_in **); -typedef int ip_fw_ctl_t(struct sockopt *); -extern ip_fw_chk_t *ip_fw_chk_ptr; -extern ip_fw_ctl_t *ip_fw_ctl_ptr; +typedef int ip_fw_chk_t(struct ip **, int, struct ifnet *, u_int16_t *, + struct mbuf **, struct ip_fw_chain **, struct sockaddr_in **); +typedef int ip_fw_ctl_t(struct sockopt *); +extern ip_fw_chk_t *ip_fw_chk_ptr; +extern ip_fw_ctl_t *ip_fw_ctl_ptr; extern int fw_one_pass; extern int fw_enable; #define IPFW_LOADED (ip_fw_chk_ptr != NULL) -extern struct ipfw_flow_id last_pkt ; -#endif /* KERNEL_PRIVATE */ +extern struct ipfw_flow_id last_pkt; +#endif /* BSD_KERNEL_PRIVATE */ #endif /* !IPFW2 */ +#endif /* __APPLE_API_OBSOLETE */ #endif /* _IP_FW_H */