1/* IPFW backward compatibility */ 2 3#ifndef _IP_FW_COMPAT_H_ 4#define _IP_FW_COMPAT_H_ 5 6/* prototypes */ 7void ipfw_convert_from_latest(struct ip_fw *curr_rule, void *old_rule, u_int32_t api_version, int is64user); 8int ipfw_convert_to_latest(struct sockopt *sopt, struct ip_fw *rule, int api_version, int is64user); 9int ipfw_get_command_and_version(struct sockopt *sopt, int *command, u_int32_t *api_version); 10 11 12/* 13 * ****************************** 14 * ****** IPFW version one ****** 15 * ****************************** 16 */ 17 18/* 19 * This union structure identifies an interface, either explicitly 20 * by name or implicitly by IP address. The flags IP_FW_F_IIFNAME 21 * and IP_FW_F_OIFNAME say how to interpret this structure. An 22 * interface unit number of -1 matches any unit number, while an 23 * IP address of 0.0.0.0 indicates matches any interface. 24 * 25 * The receive and transmit interfaces are only compared against the 26 * the packet if the corresponding bit (IP_FW_F_IIFACE or IP_FW_F_OIFACE) 27 * is set. Note some packets lack a receive or transmit interface 28 * (in which case the missing "interface" never matches). 29 */ 30 31union ip_fw_if_compat { 32 struct in_addr fu_via_ip; /* Specified by IP address */ 33 struct { /* Specified by interface name */ 34#define FW_IFNLEN_COMPAT 10 /* need room ! was IFNAMSIZ */ 35 char name[FW_IFNLEN_COMPAT]; 36 short unit; /* -1 means match any unit */ 37 } fu_via_if_compat; 38}; 39 40/* 41 * Format of an IP firewall descriptor 42 * 43 * fw_src, fw_dst, fw_smsk, fw_dmsk are always stored in network byte order. 44 * fw_flg and fw_n*p are stored in host byte order (of course). 45 * Port numbers are stored in HOST byte order. 46 */ 47 48 49struct ip_fw_compat { 50 u_int32_t version; /* Version of this structure. Should always be */ 51 /* set to IP_FW_CURRENT_API_VERSION by clients. */ 52 void *context; /* Context that is usable by user processes to */ 53 /* identify this rule. */ 54 u_int64_t fw_pcnt,fw_bcnt; /* Packet and byte counters */ 55 struct in_addr fw_src, fw_dst; /* Source and destination IP addr */ 56 struct in_addr fw_smsk, fw_dmsk; /* Mask for src and dest IP addr */ 57 u_short fw_number; /* Rule number */ 58 u_int fw_flg; /* Flags word */ 59#define IP_FW_MAX_PORTS_COMPAT 10 /* A reasonable maximum */ 60 union { 61 u_short fw_pts[IP_FW_MAX_PORTS_COMPAT]; /* Array of port numbers to match */ 62#define IP_FW_ICMPTYPES_MAX_COMPAT 128 63#define IP_FW_ICMPTYPES_DIM_COMPAT (IP_FW_ICMPTYPES_MAX_COMPAT / (sizeof(unsigned) * 8)) 64 unsigned fw_icmptypes[IP_FW_ICMPTYPES_DIM_COMPAT]; /* ICMP types bitmap */ 65 } fw_uar_compat; 66 u_int fw_ipflg; /* IP flags word */ 67 u_char fw_ipopt,fw_ipnopt; /* IP options set/unset */ 68 u_char fw_tcpopt,fw_tcpnopt; /* TCP options set/unset */ 69 u_char fw_tcpf,fw_tcpnf; /* TCP flags set/unset */ 70 long timestamp; /* timestamp (tv_sec) of last match */ 71 union ip_fw_if_compat fw_in_if, fw_out_if; /* Incoming and outgoing interfaces */ 72 union { 73 u_short fu_divert_port; /* Divert/tee port (options IPDIVERT) */ 74 u_short fu_pipe_nr; /* queue number (option DUMMYNET) */ 75 u_short fu_skipto_rule; /* SKIPTO command rule number */ 76 u_short fu_reject_code; /* REJECT response code */ 77 struct sockaddr_in fu_fwd_ip; 78 } fw_un_compat; 79 u_char fw_prot; /* IP protocol */ 80 /* 81 * N'of src ports and # of dst ports in ports array (dst ports 82 * follow src ports; max of 10 ports in all; count of 0 means 83 * match all ports) 84 */ 85 u_char fw_nports; 86 void *pipe_ptr; /* flow_set ptr for dummynet pipe */ 87 void *next_rule_ptr ; /* next rule in case of match */ 88 uid_t fw_uid; /* uid to match */ 89 int fw_logamount; /* amount to log */ 90 u_int64_t fw_loghighest; /* highest number packet to log */ 91}; 92 93/* 94 * extended ipfw structure... some fields in the original struct 95 * can be used to pass parameters up/down, namely pointers 96 * void *pipe_ptr 97 * void *next_rule_ptr 98 * some others can be used to pass parameters down, namely counters etc. 99 * u_int64_t fw_pcnt,fw_bcnt; 100 * long timestamp; 101 */ 102 103struct ip_fw_ext_compat { /* extended structure */ 104 struct ip_fw rule; /* must be at offset 0 */ 105 long dont_match_prob; /* 0x7fffffff means 1.0, always fail */ 106 u_int dyn_type; /* type for dynamic rule */ 107}; 108 109struct ip_fw_chain_compat { 110 LIST_ENTRY(ip_fw_chain_compat) next; 111 struct ip_fw_compat *rule; 112}; 113 114/* 115 * dynamic ipfw rule 116 */ 117 118struct ipfw_dyn_rule_compat { 119 struct ipfw_dyn_rule *next ; 120 121 struct ipfw_flow_id id ; 122 struct ipfw_flow_id mask ; 123 struct ip_fw_chain_compat *chain ; /* pointer to parent rule */ 124 u_int32_t type ; /* rule type */ 125 u_int32_t expire ; /* expire time */ 126 u_int64_t pcnt, bcnt; /* match counters */ 127 u_int32_t bucket ; /* which bucket in hash table */ 128 u_int32_t state ; /* state of this rule (typ. a */ 129 /* combination of TCP flags) */ 130} ; 131 132#ifdef BSD_KERNEL_PRIVATE 133#pragma pack(4) 134 135struct ip_fw_compat_32 { 136 u_int32_t version; /* Version of this structure. Should always be */ 137 /* set to IP_FW_CURRENT_API_VERSION by clients. */ 138 user32_addr_t context; /* Context that is usable by user processes to */ 139 /* identify this rule. */ 140 u_int64_t fw_pcnt,fw_bcnt; /* Packet and byte counters */ 141 struct in_addr fw_src, fw_dst; /* Source and destination IP addr */ 142 struct in_addr fw_smsk, fw_dmsk;/* Mask for src and dest IP addr */ 143 u_short fw_number; /* Rule number */ 144 u_int fw_flg; /* Flags word */ 145#define IP_FW_MAX_PORTS_COMPAT 10 /* A reasonable maximum */ 146 union { 147 u_short fw_pts[IP_FW_MAX_PORTS_COMPAT]; /* Array of port numbers to match */ 148#define IP_FW_ICMPTYPES_MAX_COMPAT 128 149#define IP_FW_ICMPTYPES_DIM_COMPAT (IP_FW_ICMPTYPES_MAX_COMPAT / (sizeof(unsigned) * 8)) 150 unsigned fw_icmptypes[IP_FW_ICMPTYPES_DIM_COMPAT]; /* ICMP types bitmap */ 151 } fw_uar_compat; 152 u_int fw_ipflg; /* IP flags word */ 153 u_char fw_ipopt,fw_ipnopt; /* IP options set/unset */ 154 u_char fw_tcpopt,fw_tcpnopt; /* TCP options set/unset */ 155 u_char fw_tcpf,fw_tcpnf; /* TCP flags set/unset */ 156 u_int32_t timestamp; /* timestamp (tv_sec) of last match */ 157 union ip_fw_if_compat fw_in_if, fw_out_if; /* Incoming and outgoing interfaces */ 158 union { 159 u_short fu_divert_port; /* Divert/tee port (options IPDIVERT) */ 160 u_short fu_pipe_nr; /* queue number (option DUMMYNET) */ 161 u_short fu_skipto_rule; /* SKIPTO command rule number */ 162 u_short fu_reject_code; /* REJECT response code */ 163 struct sockaddr_in fu_fwd_ip; 164 } fw_un_compat; 165 u_char fw_prot; /* IP protocol */ 166 /* 167 * N'of src ports and # of dst ports in ports array (dst ports 168 * follow src ports; max of 10 ports in all; count of 0 means 169 * match all ports) 170 */ 171 u_char fw_nports; 172 user32_addr_t pipe_ptr; /* flow_set ptr for dummynet pipe */ 173 user32_addr_t next_rule_ptr ; /* next rule in case of match */ 174 uid_t fw_uid; /* uid to match */ 175 int fw_logamount; /* amount to log */ 176 u_int64_t fw_loghighest; /* highest number packet to log */ 177}; 178#pragma pack() 179 180struct ip_fw_compat_64 { 181 u_int32_t version; /* Version of this structure. Should always be */ 182 /* set to IP_FW_CURRENT_API_VERSION by clients. */ 183 user64_addr_t context; /* Context that is usable by user processes to */ 184 /* identify this rule. */ 185 u_int64_t fw_pcnt,fw_bcnt; /* Packet and byte counters */ 186 struct in_addr fw_src, fw_dst; /* Source and destination IP addr */ 187 struct in_addr fw_smsk, fw_dmsk;/* Mask for src and dest IP addr */ 188 u_short fw_number; /* Rule number */ 189 u_int fw_flg; /* Flags word */ 190#define IP_FW_MAX_PORTS_COMPAT 10 /* A reasonable maximum */ 191 union { 192 u_short fw_pts[IP_FW_MAX_PORTS_COMPAT]; /* Array of port numbers to match */ 193#define IP_FW_ICMPTYPES_MAX_COMPAT 128 194#define IP_FW_ICMPTYPES_DIM_COMPAT (IP_FW_ICMPTYPES_MAX_COMPAT / (sizeof(unsigned) * 8)) 195 unsigned fw_icmptypes[IP_FW_ICMPTYPES_DIM_COMPAT]; /* ICMP types bitmap */ 196 } fw_uar_compat; 197 u_int fw_ipflg; /* IP flags word */ 198 u_char fw_ipopt,fw_ipnopt; /* IP options set/unset */ 199 u_char fw_tcpopt,fw_tcpnopt; /* TCP options set/unset */ 200 u_char fw_tcpf,fw_tcpnf; /* TCP flags set/unset */ 201 u_int64_t timestamp; /* timestamp (tv_sec) of last match */ 202 union ip_fw_if_compat fw_in_if, fw_out_if; /* Incoming and outgoing interfaces */ 203 union { 204 u_short fu_divert_port; /* Divert/tee port (options IPDIVERT) */ 205 u_short fu_pipe_nr; /* queue number (option DUMMYNET) */ 206 u_short fu_skipto_rule; /* SKIPTO command rule number */ 207 u_short fu_reject_code; /* REJECT response code */ 208 struct sockaddr_in fu_fwd_ip; 209 } fw_un_compat; 210 u_char fw_prot; /* IP protocol */ 211 /* 212 * N'of src ports and # of dst ports in ports array (dst ports 213 * follow src ports; max of 10 ports in all; count of 0 means 214 * match all ports) 215 */ 216 u_char fw_nports; 217 user64_addr_t pipe_ptr; /* flow_set ptr for dummynet pipe */ 218 user64_addr_t next_rule_ptr ; /* next rule in case of match */ 219 uid_t fw_uid; /* uid to match */ 220 int fw_logamount; /* amount to log */ 221 u_int64_t fw_loghighest; /* highest number packet to log */ 222}; 223 224struct ipfw_dyn_rule_compat_32 { 225 user32_addr_t next ; 226 227 struct ipfw_flow_id id ; 228 struct ipfw_flow_id mask ; 229 user32_addr_t chain ; /* pointer to parent rule */ 230 u_int32_t type ; /* rule type */ 231 u_int32_t expire ; /* expire time */ 232 u_int64_t pcnt, bcnt; /* match counters */ 233 u_int32_t bucket ; /* which bucket in hash table */ 234 u_int32_t state ; /* state of this rule (typ. a */ 235 /* combination of TCP flags) */ 236} ; 237 238struct ipfw_dyn_rule_compat_64 { 239 user64_addr_t next ; 240 241 struct ipfw_flow_id id ; 242 struct ipfw_flow_id mask ; 243 user64_addr_t chain ; /* pointer to parent rule */ 244 u_int32_t type ; /* rule type */ 245 u_int32_t expire ; /* expire time */ 246 u_int64_t pcnt, bcnt; /* match counters */ 247 u_int32_t bucket ; /* which bucket in hash table */ 248 u_int32_t state ; /* state of this rule (typ. a */ 249 /* combination of TCP flags) */ 250} ; 251#endif /* BSD_KERNEL_PRIVATE */ 252 253 254#define IP_FW_GETNSRCP_COMPAT(rule) ((rule)->fw_nports & 0x0f) 255#define IP_FW_SETNSRCP_COMPAT(rule, n) do { \ 256 (rule)->fw_nports &= ~0x0f; \ 257 (rule)->fw_nports |= (n); \ 258 } while (0) 259#define IP_FW_GETNDSTP_COMPAT(rule) ((rule)->fw_nports >> 4) 260#define IP_FW_SETNDSTP_COMPAT(rule, n) do { \ 261 (rule)->fw_nports &= ~0xf0; \ 262 (rule)->fw_nports |= (n) << 4;\ 263 } while (0) 264 265#define fw_divert_port_compat fw_un_compat.fu_divert_port 266#define fw_skipto_rule_compat fw_un_compat.fu_skipto_rule 267#define fw_reject_code_compat fw_un_compat.fu_reject_code 268#define fw_pipe_nr_compat fw_un_compat.fu_pipe_nr 269#define fw_fwd_ip_compat fw_un_compat.fu_fwd_ip 270 271/* 272 * Values for "flags" field . 273 */ 274#define IP_FW_F_COMMAND_COMPAT 0x000000ff /* Mask for type of chain entry: */ 275#define IP_FW_F_DENY_COMPAT 0x00000000 /* This is a deny rule */ 276#define IP_FW_F_REJECT_COMPAT 0x00000001 /* Deny and send a response packet */ 277#define IP_FW_F_ACCEPT_COMPAT 0x00000002 /* This is an accept rule */ 278#define IP_FW_F_COUNT_COMPAT 0x00000003 /* This is a count rule */ 279#define IP_FW_F_DIVERT_COMPAT 0x00000004 /* This is a divert rule */ 280#define IP_FW_F_TEE_COMPAT 0x00000005 /* This is a tee rule */ 281#define IP_FW_F_SKIPTO_COMPAT 0x00000006 /* This is a skipto rule */ 282#define IP_FW_F_FWD_COMPAT 0x00000007 /* This is a "change forwarding address" rule */ 283#define IP_FW_F_PIPE_COMPAT 0x00000008 /* This is a dummynet rule */ 284#define IP_FW_F_QUEUE_COMPAT 0x00000009 /* This is a dummynet queue */ 285 286#define IP_FW_F_IN_COMPAT 0x00000100 /* Check inbound packets */ 287#define IP_FW_F_OUT_COMPAT 0x00000200 /* Check outbound packets */ 288#define IP_FW_F_IIFACE_COMPAT 0x00000400 /* Apply inbound interface test */ 289#define IP_FW_F_OIFACE_COMPAT 0x00000800 /* Apply outbound interface test */ 290 291#define IP_FW_F_PRN_COMPAT 0x00001000 /* Print if this rule matches */ 292 293#define IP_FW_F_SRNG_COMPAT 0x00002000 /* The first two src ports are a min * 294 * and max range (stored in host byte * 295 * order). */ 296 297#define IP_FW_F_DRNG_COMPAT 0x00004000 /* The first two dst ports are a min * 298 * and max range (stored in host byte * 299 * order). */ 300 301#define IP_FW_F_FRAG_COMPAT 0x00008000 /* Fragment */ 302 303#define IP_FW_F_IIFNAME_COMPAT 0x00010000 /* In interface by name/unit (not IP) */ 304#define IP_FW_F_OIFNAME_COMPAT 0x00020000 /* Out interface by name/unit (not IP) */ 305 306#define IP_FW_F_INVSRC_COMPAT 0x00040000 /* Invert sense of src check */ 307#define IP_FW_F_INVDST_COMPAT 0x00080000 /* Invert sense of dst check */ 308 309#define IP_FW_F_ICMPBIT_COMPAT 0x00100000 /* ICMP type bitmap is valid */ 310 311#define IP_FW_F_UID_COMPAT 0x00200000 /* filter by uid */ 312 313#define IP_FW_F_RND_MATCH_COMPAT 0x00800000 /* probabilistic rule match */ 314#define IP_FW_F_SMSK_COMPAT 0x01000000 /* src-port + mask */ 315#define IP_FW_F_DMSK_COMPAT 0x02000000 /* dst-port + mask */ 316#define IP_FW_BRIDGED_COMPAT 0x04000000 /* only match bridged packets */ 317#define IP_FW_F_KEEP_S_COMPAT 0x08000000 /* keep state */ 318#define IP_FW_F_CHECK_S_COMPAT 0x10000000 /* check state */ 319 320#define IP_FW_F_SME_COMPAT 0x20000000 /* source = me */ 321#define IP_FW_F_DME_COMPAT 0x40000000 /* destination = me */ 322 323#define IP_FW_F_MASK_COMPAT 0x7FFFFFFF /* All possible flag bits mask */ 324 325/* 326 * Flags for the 'fw_ipflg' field, for comparing values of ip and its protocols. 327 */ 328#define IP_FW_IF_TCPEST_COMPAT 0x00000020 /* established TCP connection */ 329#define IP_FW_IF_TCPMSK_COMPAT 0x00000020 /* mask of all TCP values */ 330 331/* 332 * Definitions for TCP flags. 333 */ 334#define IP_FW_TCPF_FIN_COMPAT TH_FIN 335#define IP_FW_TCPF_SYN_COMPAT TH_SYN 336#define IP_FW_TCPF_RST_COMPAT TH_RST 337#define IP_FW_TCPF_PSH_COMPAT TH_PUSH 338#define IP_FW_TCPF_ACK_COMPAT TH_ACK 339#define IP_FW_TCPF_URG_COMPAT TH_URG 340 341/* 342 * For backwards compatibility with rules specifying "via iface" but 343 * not restricted to only "in" or "out" packets, we define this combination 344 * of bits to represent this configuration. 345 */ 346 347#define IF_FW_F_VIAHACK_COMPAT (IP_FW_F_IN_COMPAT|IP_FW_F_OUT_COMPAT|IP_FW_F_IIFACE_COMPAT|IP_FW_F_OIFACE_COMPAT) 348 349/* 350 * Definitions for REJECT response codes. 351 * Values less than 256 correspond to ICMP unreachable codes. 352 */ 353#define IP_FW_REJECT_RST_COMPAT 0x0100 /* TCP packets: send RST */ 354 355 356/* 357 * ****************************** 358 * ****** IPFW version zero ***** 359 * ****************************** 360 */ 361 362/* 363 * This union structure identifies an interface, either explicitly 364 * by name or implicitly by IP address. The flags IP_FW_F_IIFNAME 365 * and IP_FW_F_OIFNAME say how to interpret this structure. An 366 * interface unit number of -1 matches any unit number, while an 367 * IP address of 0.0.0.0 indicates matches any interface. 368 * 369 * The receive and transmit interfaces are only compared against the 370 * the packet if the corresponding bit (IP_FW_F_IIFACE or IP_FW_F_OIFACE) 371 * is set. Note some packets lack a receive or transmit interface 372 * (in which case the missing "interface" never matches). 373 */ 374 375union ip_old_fw_if { 376 struct in_addr fu_via_ip; /* Specified by IP address */ 377 struct { /* Specified by interface name */ 378#define OLD_FW_IFNLEN 10 /* need room ! was IFNAMSIZ */ 379 char name[OLD_FW_IFNLEN]; 380 short unit; /* -1 means match any unit */ 381 } fu_via_if; 382}; 383 384/* 385 * Format of an IP firewall descriptor 386 * 387 * fw_src, fw_dst, fw_smsk, fw_dmsk are always stored in network byte order. 388 * fw_flg and fw_n*p are stored in host byte order (of course). 389 * Port numbers are stored in HOST byte order. 390 * Warning: setsockopt() will fail if sizeof(struct ip_fw) > MLEN (108) 391 */ 392 393struct ip_old_fw { 394 u_int64_t fw_pcnt,fw_bcnt; /* Packet and byte counters */ 395 struct in_addr fw_src, fw_dst; /* Source and destination IP addr */ 396 struct in_addr fw_smsk, fw_dmsk; /* Mask for src and dest IP addr */ 397 u_short fw_number; /* Rule number */ 398 u_int fw_flg; /* Flags word */ 399#define IP_OLD_FW_MAX_PORTS 10 /* A reasonable maximum */ 400 union { 401 u_short fw_pts[IP_OLD_FW_MAX_PORTS]; /* Array of port numbers to match */ 402#define IP_OLD_FW_ICMPTYPES_MAX 128 403#define IP_OLD_FW_ICMPTYPES_DIM (IP_OLD_FW_ICMPTYPES_MAX / (sizeof(unsigned) * 8)) 404 unsigned fw_icmptypes[IP_OLD_FW_ICMPTYPES_DIM]; /* ICMP types bitmap */ 405 } fw_uar; 406 u_char fw_ipopt,fw_ipnopt; /* IP options set/unset */ 407 u_char fw_tcpf,fw_tcpnf; /* TCP flags set/unset */ 408 long timestamp; /* timestamp (tv_sec) of last match */ 409 union ip_old_fw_if fw_in_if, fw_out_if; /* Incoming and outgoing interfaces */ 410 union { 411 u_short fu_divert_port; /* Divert/tee port (options IPDIVERT) */ 412 u_short fu_pipe_nr; /* pipe number (option DUMMYNET) */ 413 u_short fu_skipto_rule; /* SKIPTO command rule number */ 414 u_short fu_reject_code; /* REJECT response code */ 415 struct sockaddr_in fu_fwd_ip; 416 } fw_un; 417 u_char fw_prot; /* IP protocol */ 418 u_char fw_nports; /* N'of src ports and # of dst ports */ 419 /* in ports array (dst ports follow */ 420 /* src ports; max of 10 ports in all; */ 421 /* count of 0 means match all ports) */ 422 void *pipe_ptr; /* Pipe ptr in case of dummynet pipe */ 423 void *next_rule_ptr ; /* next rule in case of match */ 424}; 425 426#define IP_OLD_FW_GETNSRCP(rule) ((rule)->fw_nports & 0x0f) 427#define IP_OLD_FW_SETNSRCP(rule, n) do { \ 428 (rule)->fw_nports &= ~0x0f; \ 429 (rule)->fw_nports |= (n); \ 430 } while (0) 431#define IP_OLD_FW_GETNDSTP(rule) ((rule)->fw_nports >> 4) 432#define IP_OLD_FW_SETNDSTP(rule, n) do { \ 433 (rule)->fw_nports &= ~0xf0; \ 434 (rule)->fw_nports |= (n) << 4;\ 435 } while (0) 436 437#define old_fw_divert_port fw_un.fu_divert_port 438#define old_fw_skipto_rule fw_un.fu_skipto_rule 439#define old_fw_reject_code fw_un.fu_reject_code 440#define old_fw_pipe_nr fw_un.fu_pipe_nr 441#define old_fw_fwd_ip fw_un.fu_fwd_ip 442 443/* 444 * Values for "flags" field . 445 */ 446#define IP_OLD_FW_F_COMMAND 0x000000ff /* Mask for type of chain entry: */ 447#define IP_OLD_FW_F_DENY 0x00000000 /* This is a deny rule */ 448#define IP_OLD_FW_F_REJECT 0x00000001 /* Deny and send a response packet */ 449#define IP_OLD_FW_F_ACCEPT 0x00000002 /* This is an accept rule */ 450#define IP_OLD_FW_F_COUNT 0x00000003 /* This is a count rule */ 451#define IP_OLD_FW_F_DIVERT 0x00000004 /* This is a divert rule */ 452#define IP_OLD_FW_F_TEE 0x00000005 /* This is a tee rule */ 453#define IP_OLD_FW_F_SKIPTO 0x00000006 /* This is a skipto rule */ 454#define IP_OLD_FW_F_FWD 0x00000007 /* This is a "change forwarding address" rule */ 455#define IP_OLD_FW_F_PIPE 0x00000008 /* This is a dummynet rule */ 456 457#define IP_OLD_FW_F_IN 0x00000100 /* Check inbound packets */ 458#define IP_OLD_FW_F_OUT 0x00000200 /* Check outbound packets */ 459#define IP_OLD_FW_F_IIFACE 0x00000400 /* Apply inbound interface test */ 460#define IP_OLD_FW_F_OIFACE 0x00000800 /* Apply outbound interface test */ 461 462#define IP_OLD_FW_F_PRN 0x00001000 /* Print if this rule matches */ 463 464#define IP_OLD_FW_F_SRNG 0x00002000 /* The first two src ports are a min * 465 * and max range (stored in host byte * 466 * order). */ 467 468#define IP_OLD_FW_F_DRNG 0x00004000 /* The first two dst ports are a min * 469 * and max range (stored in host byte * 470 * order). */ 471 472#define IP_OLD_FW_F_FRAG 0x00008000 /* Fragment */ 473 474#define IP_OLD_FW_F_IIFNAME 0x00010000 /* In interface by name/unit (not IP) */ 475#define IP_OLD_FW_F_OIFNAME 0x00020000 /* Out interface by name/unit (not IP) */ 476 477#define IP_OLD_FW_F_INVSRC 0x00040000 /* Invert sense of src check */ 478#define IP_OLD_FW_F_INVDST 0x00080000 /* Invert sense of dst check */ 479 480#define IP_OLD_FW_F_ICMPBIT 0x00100000 /* ICMP type bitmap is valid */ 481 482#define IP_OLD_FW_F_MASK 0x001FFFFF /* All possible flag bits mask */ 483 484/* 485 * For backwards compatibility with rules specifying "via iface" but 486 * not restricted to only "in" or "out" packets, we define this combination 487 * of bits to represent this configuration. 488 */ 489 490#define IF_OLD_FW_F_VIAHACK (IP_OLD_FW_F_IN|IP_OLD_FW_F_OUT|IP_OLD_FW_F_IIFACE|IP_OLD_FW_F_OIFACE) 491 492/* 493 * Definitions for TCP flags - abridged 494 */ 495#define IP_OLD_FW_TCPF_ESTAB 0x40 496 497#endif /* _IP_FW_COMPAT_H_ */ 498