[084d4db] | 1 | /* $OpenBSD: pfctl_parser.h,v 1.86 2006/10/31 23:46:25 mcbride Exp $ */ |
---|
| 2 | |
---|
| 3 | /* |
---|
| 4 | * Copyright (c) 2001 Daniel Hartmeier |
---|
| 5 | * All rights reserved. |
---|
| 6 | * |
---|
| 7 | * Redistribution and use in source and binary forms, with or without |
---|
| 8 | * modification, are permitted provided that the following conditions |
---|
| 9 | * are met: |
---|
| 10 | * |
---|
| 11 | * - Redistributions of source code must retain the above copyright |
---|
| 12 | * notice, this list of conditions and the following disclaimer. |
---|
| 13 | * - Redistributions in binary form must reproduce the above |
---|
| 14 | * copyright notice, this list of conditions and the following |
---|
| 15 | * disclaimer in the documentation and/or other materials provided |
---|
| 16 | * with the distribution. |
---|
| 17 | * |
---|
| 18 | * THIS SOFTWARE IS PROVIDED BY THE COPYRIGHT HOLDERS AND CONTRIBUTORS |
---|
| 19 | * "AS IS" AND ANY EXPRESS OR IMPLIED WARRANTIES, INCLUDING, BUT NOT |
---|
| 20 | * LIMITED TO, THE IMPLIED WARRANTIES OF MERCHANTABILITY AND FITNESS |
---|
| 21 | * FOR A PARTICULAR PURPOSE ARE DISCLAIMED. IN NO EVENT SHALL THE |
---|
| 22 | * COPYRIGHT HOLDERS OR CONTRIBUTORS BE LIABLE FOR ANY DIRECT, INDIRECT, |
---|
| 23 | * INCIDENTAL, SPECIAL, EXEMPLARY, OR CONSEQUENTIAL DAMAGES (INCLUDING, |
---|
| 24 | * BUT NOT LIMITED TO, PROCUREMENT OF SUBSTITUTE GOODS OR SERVICES; |
---|
| 25 | * LOSS OF USE, DATA, OR PROFITS; OR BUSINESS INTERRUPTION) HOWEVER |
---|
| 26 | * CAUSED AND ON ANY THEORY OF LIABILITY, WHETHER IN CONTRACT, STRICT |
---|
| 27 | * LIABILITY, OR TORT (INCLUDING NEGLIGENCE OR OTHERWISE) ARISING IN |
---|
| 28 | * ANY WAY OUT OF THE USE OF THIS SOFTWARE, EVEN IF ADVISED OF THE |
---|
| 29 | * POSSIBILITY OF SUCH DAMAGE. |
---|
| 30 | * |
---|
| 31 | * $FreeBSD$ |
---|
| 32 | */ |
---|
| 33 | |
---|
| 34 | #ifndef _PFCTL_PARSER_H_ |
---|
| 35 | #define _PFCTL_PARSER_H_ |
---|
| 36 | |
---|
| 37 | #define PF_OSFP_FILE "/etc/pf.os" |
---|
| 38 | |
---|
| 39 | #define PF_OPT_DISABLE 0x0001 |
---|
| 40 | #define PF_OPT_ENABLE 0x0002 |
---|
| 41 | #define PF_OPT_VERBOSE 0x0004 |
---|
| 42 | #define PF_OPT_NOACTION 0x0008 |
---|
| 43 | #define PF_OPT_QUIET 0x0010 |
---|
| 44 | #define PF_OPT_CLRRULECTRS 0x0020 |
---|
| 45 | #define PF_OPT_USEDNS 0x0040 |
---|
| 46 | #define PF_OPT_VERBOSE2 0x0080 |
---|
| 47 | #define PF_OPT_DUMMYACTION 0x0100 |
---|
| 48 | #define PF_OPT_DEBUG 0x0200 |
---|
| 49 | #define PF_OPT_SHOWALL 0x0400 |
---|
| 50 | #define PF_OPT_OPTIMIZE 0x0800 |
---|
| 51 | #define PF_OPT_NUMERIC 0x1000 |
---|
| 52 | #define PF_OPT_MERGE 0x2000 |
---|
| 53 | #define PF_OPT_RECURSE 0x4000 |
---|
| 54 | |
---|
| 55 | #define PF_TH_ALL 0xFF |
---|
| 56 | |
---|
| 57 | #define PF_NAT_PROXY_PORT_LOW 50001 |
---|
| 58 | #define PF_NAT_PROXY_PORT_HIGH 65535 |
---|
| 59 | |
---|
| 60 | #define PF_OPTIMIZE_BASIC 0x0001 |
---|
| 61 | #define PF_OPTIMIZE_PROFILE 0x0002 |
---|
| 62 | |
---|
| 63 | #define FCNT_NAMES { \ |
---|
| 64 | "searches", \ |
---|
| 65 | "inserts", \ |
---|
| 66 | "removals", \ |
---|
| 67 | NULL \ |
---|
| 68 | } |
---|
| 69 | |
---|
| 70 | struct pfr_buffer; /* forward definition */ |
---|
| 71 | |
---|
| 72 | |
---|
| 73 | struct pfctl { |
---|
| 74 | int dev; |
---|
| 75 | int opts; |
---|
| 76 | int optimize; |
---|
| 77 | int loadopt; |
---|
| 78 | int asd; /* anchor stack depth */ |
---|
| 79 | int bn; /* brace number */ |
---|
| 80 | int brace; |
---|
| 81 | int tdirty; /* kernel dirty */ |
---|
| 82 | #define PFCTL_ANCHOR_STACK_DEPTH 64 |
---|
| 83 | struct pf_anchor *astack[PFCTL_ANCHOR_STACK_DEPTH]; |
---|
| 84 | struct pfioc_pooladdr paddr; |
---|
| 85 | struct pfioc_altq *paltq; |
---|
| 86 | struct pfioc_queue *pqueue; |
---|
| 87 | struct pfr_buffer *trans; |
---|
| 88 | struct pf_anchor *anchor, *alast; |
---|
| 89 | const char *ruleset; |
---|
| 90 | |
---|
| 91 | /* 'set foo' options */ |
---|
| 92 | u_int32_t timeout[PFTM_MAX]; |
---|
| 93 | u_int32_t limit[PF_LIMIT_MAX]; |
---|
| 94 | u_int32_t debug; |
---|
| 95 | u_int32_t hostid; |
---|
| 96 | char *ifname; |
---|
| 97 | |
---|
| 98 | u_int8_t timeout_set[PFTM_MAX]; |
---|
| 99 | u_int8_t limit_set[PF_LIMIT_MAX]; |
---|
| 100 | u_int8_t debug_set; |
---|
| 101 | u_int8_t hostid_set; |
---|
| 102 | u_int8_t ifname_set; |
---|
| 103 | }; |
---|
| 104 | |
---|
| 105 | struct node_if { |
---|
| 106 | char ifname[IFNAMSIZ]; |
---|
| 107 | u_int8_t not; |
---|
| 108 | u_int8_t dynamic; /* antispoof */ |
---|
| 109 | u_int ifa_flags; |
---|
| 110 | struct node_if *next; |
---|
| 111 | struct node_if *tail; |
---|
| 112 | }; |
---|
| 113 | |
---|
| 114 | struct node_host { |
---|
| 115 | struct pf_addr_wrap addr; |
---|
| 116 | struct pf_addr bcast; |
---|
| 117 | struct pf_addr peer; |
---|
| 118 | sa_family_t af; |
---|
| 119 | u_int8_t not; |
---|
| 120 | u_int32_t ifindex; /* link-local IPv6 addrs */ |
---|
| 121 | char *ifname; |
---|
| 122 | u_int ifa_flags; |
---|
| 123 | struct node_host *next; |
---|
| 124 | struct node_host *tail; |
---|
| 125 | }; |
---|
| 126 | |
---|
| 127 | struct node_os { |
---|
| 128 | char *os; |
---|
| 129 | pf_osfp_t fingerprint; |
---|
| 130 | struct node_os *next; |
---|
| 131 | struct node_os *tail; |
---|
| 132 | }; |
---|
| 133 | |
---|
| 134 | struct node_queue_bw { |
---|
| 135 | u_int32_t bw_absolute; |
---|
| 136 | u_int16_t bw_percent; |
---|
| 137 | }; |
---|
| 138 | |
---|
| 139 | struct node_hfsc_sc { |
---|
| 140 | struct node_queue_bw m1; /* slope of 1st segment; bps */ |
---|
| 141 | u_int d; /* x-projection of m1; msec */ |
---|
| 142 | struct node_queue_bw m2; /* slope of 2nd segment; bps */ |
---|
| 143 | u_int8_t used; |
---|
| 144 | }; |
---|
| 145 | |
---|
| 146 | struct node_hfsc_opts { |
---|
| 147 | struct node_hfsc_sc realtime; |
---|
| 148 | struct node_hfsc_sc linkshare; |
---|
| 149 | struct node_hfsc_sc upperlimit; |
---|
| 150 | int flags; |
---|
| 151 | }; |
---|
| 152 | |
---|
| 153 | struct node_queue_opt { |
---|
| 154 | int qtype; |
---|
| 155 | union { |
---|
| 156 | struct cbq_opts cbq_opts; |
---|
| 157 | struct priq_opts priq_opts; |
---|
| 158 | struct node_hfsc_opts hfsc_opts; |
---|
| 159 | } data; |
---|
| 160 | }; |
---|
| 161 | |
---|
| 162 | #ifdef __FreeBSD__ |
---|
| 163 | /* |
---|
| 164 | * XXX |
---|
| 165 | * Absolutely this is not correct location to define this. |
---|
| 166 | * Should we use an another sperate header file? |
---|
| 167 | */ |
---|
| 168 | #define SIMPLEQ_HEAD STAILQ_HEAD |
---|
| 169 | #define SIMPLEQ_HEAD_INITIALIZER STAILQ_HEAD_INITIALIZER |
---|
| 170 | #define SIMPLEQ_ENTRY STAILQ_ENTRY |
---|
| 171 | #define SIMPLEQ_FIRST STAILQ_FIRST |
---|
| 172 | #define SIMPLEQ_END(head) NULL |
---|
| 173 | #define SIMPLEQ_EMPTY STAILQ_EMPTY |
---|
| 174 | #define SIMPLEQ_NEXT STAILQ_NEXT |
---|
| 175 | /*#define SIMPLEQ_FOREACH STAILQ_FOREACH*/ |
---|
| 176 | #define SIMPLEQ_FOREACH(var, head, field) \ |
---|
| 177 | for((var) = SIMPLEQ_FIRST(head); \ |
---|
| 178 | (var) != SIMPLEQ_END(head); \ |
---|
| 179 | (var) = SIMPLEQ_NEXT(var, field)) |
---|
| 180 | #define SIMPLEQ_INIT STAILQ_INIT |
---|
| 181 | #define SIMPLEQ_INSERT_HEAD STAILQ_INSERT_HEAD |
---|
| 182 | #define SIMPLEQ_INSERT_TAIL STAILQ_INSERT_TAIL |
---|
| 183 | #define SIMPLEQ_INSERT_AFTER STAILQ_INSERT_AFTER |
---|
| 184 | #define SIMPLEQ_REMOVE_HEAD STAILQ_REMOVE_HEAD |
---|
| 185 | #endif |
---|
| 186 | SIMPLEQ_HEAD(node_tinithead, node_tinit); |
---|
| 187 | struct node_tinit { /* table initializer */ |
---|
| 188 | SIMPLEQ_ENTRY(node_tinit) entries; |
---|
| 189 | struct node_host *host; |
---|
| 190 | char *file; |
---|
| 191 | }; |
---|
| 192 | |
---|
| 193 | |
---|
| 194 | /* optimizer created tables */ |
---|
| 195 | struct pf_opt_tbl { |
---|
| 196 | char pt_name[PF_TABLE_NAME_SIZE]; |
---|
| 197 | int pt_rulecount; |
---|
| 198 | int pt_generated; |
---|
| 199 | struct node_tinithead pt_nodes; |
---|
| 200 | struct pfr_buffer *pt_buf; |
---|
| 201 | }; |
---|
| 202 | #define PF_OPT_TABLE_PREFIX "__automatic_" |
---|
| 203 | |
---|
| 204 | /* optimizer pf_rule container */ |
---|
| 205 | struct pf_opt_rule { |
---|
| 206 | struct pf_rule por_rule; |
---|
| 207 | struct pf_opt_tbl *por_src_tbl; |
---|
| 208 | struct pf_opt_tbl *por_dst_tbl; |
---|
| 209 | u_int64_t por_profile_count; |
---|
| 210 | TAILQ_ENTRY(pf_opt_rule) por_entry; |
---|
| 211 | TAILQ_ENTRY(pf_opt_rule) por_skip_entry[PF_SKIP_COUNT]; |
---|
| 212 | }; |
---|
| 213 | |
---|
| 214 | TAILQ_HEAD(pf_opt_queue, pf_opt_rule); |
---|
| 215 | |
---|
| 216 | int pfctl_rules(int, char *, int, int, char *, struct pfr_buffer *); |
---|
| 217 | int pfctl_optimize_ruleset(struct pfctl *, struct pf_ruleset *); |
---|
| 218 | |
---|
| 219 | int pfctl_add_rule(struct pfctl *, struct pf_rule *, const char *); |
---|
| 220 | int pfctl_add_altq(struct pfctl *, struct pf_altq *); |
---|
| 221 | int pfctl_add_pool(struct pfctl *, struct pf_pool *, sa_family_t); |
---|
| 222 | void pfctl_move_pool(struct pf_pool *, struct pf_pool *); |
---|
| 223 | void pfctl_clear_pool(struct pf_pool *); |
---|
| 224 | |
---|
| 225 | int pfctl_set_timeout(struct pfctl *, const char *, int, int); |
---|
| 226 | int pfctl_set_optimization(struct pfctl *, const char *); |
---|
| 227 | int pfctl_set_limit(struct pfctl *, const char *, unsigned int); |
---|
| 228 | int pfctl_set_logif(struct pfctl *, char *); |
---|
| 229 | int pfctl_set_hostid(struct pfctl *, u_int32_t); |
---|
| 230 | int pfctl_set_debug(struct pfctl *, char *); |
---|
| 231 | int pfctl_set_interface_flags(struct pfctl *, char *, int, int); |
---|
| 232 | |
---|
| 233 | int parse_config(char *, struct pfctl *); |
---|
| 234 | int parse_flags(char *); |
---|
| 235 | int pfctl_load_anchors(int, struct pfctl *, struct pfr_buffer *); |
---|
| 236 | |
---|
| 237 | void print_pool(struct pf_pool *, u_int16_t, u_int16_t, sa_family_t, int); |
---|
| 238 | void print_src_node(struct pf_src_node *, int); |
---|
| 239 | void print_rule(struct pf_rule *, const char *, int, int); |
---|
| 240 | void print_tabledef(const char *, int, int, struct node_tinithead *); |
---|
| 241 | void print_status(struct pf_status *, int); |
---|
| 242 | |
---|
| 243 | int eval_pfaltq(struct pfctl *, struct pf_altq *, struct node_queue_bw *, |
---|
| 244 | struct node_queue_opt *); |
---|
| 245 | int eval_pfqueue(struct pfctl *, struct pf_altq *, struct node_queue_bw *, |
---|
| 246 | struct node_queue_opt *); |
---|
| 247 | |
---|
| 248 | void print_altq(const struct pf_altq *, unsigned, struct node_queue_bw *, |
---|
| 249 | struct node_queue_opt *); |
---|
| 250 | void print_queue(const struct pf_altq *, unsigned, struct node_queue_bw *, |
---|
| 251 | int, struct node_queue_opt *); |
---|
| 252 | |
---|
| 253 | int pfctl_define_table(char *, int, int, const char *, struct pfr_buffer *, |
---|
| 254 | u_int32_t); |
---|
| 255 | |
---|
| 256 | void pfctl_clear_fingerprints(int, int); |
---|
| 257 | int pfctl_file_fingerprints(int, int, const char *); |
---|
| 258 | pf_osfp_t pfctl_get_fingerprint(const char *); |
---|
| 259 | int pfctl_load_fingerprints(int, int); |
---|
| 260 | char *pfctl_lookup_fingerprint(pf_osfp_t, char *, size_t); |
---|
| 261 | void pfctl_show_fingerprints(int); |
---|
| 262 | |
---|
| 263 | |
---|
| 264 | struct icmptypeent { |
---|
| 265 | const char *name; |
---|
| 266 | u_int8_t type; |
---|
| 267 | }; |
---|
| 268 | |
---|
| 269 | struct icmpcodeent { |
---|
| 270 | const char *name; |
---|
| 271 | u_int8_t type; |
---|
| 272 | u_int8_t code; |
---|
| 273 | }; |
---|
| 274 | |
---|
| 275 | const struct icmptypeent *geticmptypebynumber(u_int8_t, u_int8_t); |
---|
| 276 | const struct icmptypeent *geticmptypebyname(char *, u_int8_t); |
---|
| 277 | const struct icmpcodeent *geticmpcodebynumber(u_int8_t, u_int8_t, u_int8_t); |
---|
| 278 | const struct icmpcodeent *geticmpcodebyname(u_long, char *, u_int8_t); |
---|
| 279 | |
---|
| 280 | struct pf_timeout { |
---|
| 281 | const char *name; |
---|
| 282 | int timeout; |
---|
| 283 | }; |
---|
| 284 | |
---|
| 285 | #define PFCTL_FLAG_FILTER 0x02 |
---|
| 286 | #define PFCTL_FLAG_NAT 0x04 |
---|
| 287 | #define PFCTL_FLAG_OPTION 0x08 |
---|
| 288 | #define PFCTL_FLAG_ALTQ 0x10 |
---|
| 289 | #define PFCTL_FLAG_TABLE 0x20 |
---|
| 290 | |
---|
| 291 | extern const struct pf_timeout pf_timeouts[]; |
---|
| 292 | |
---|
| 293 | void set_ipmask(struct node_host *, u_int8_t); |
---|
| 294 | int check_netmask(struct node_host *, sa_family_t); |
---|
| 295 | int unmask(struct pf_addr *, sa_family_t); |
---|
| 296 | void ifa_load(void); |
---|
| 297 | struct node_host *ifa_exists(const char *); |
---|
| 298 | struct node_host *ifa_lookup(const char *, int); |
---|
| 299 | struct node_host *host(const char *); |
---|
| 300 | |
---|
| 301 | int append_addr(struct pfr_buffer *, char *, int); |
---|
| 302 | int append_addr_host(struct pfr_buffer *, |
---|
| 303 | struct node_host *, int, int); |
---|
| 304 | |
---|
| 305 | #endif /* _PFCTL_PARSER_H_ */ |
---|