pfctl_parser.h revision 1.1.1.3
1 /* $OpenBSD: pfctl_parser.h,v 1.80 2005/02/07 18:18:14 david 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 */ 32 33 #ifndef _PFCTL_PARSER_H_ 34 #define _PFCTL_PARSER_H_ 35 36 #define PF_OSFP_FILE "/etc/pf.os" 37 38 #define PF_OPT_DISABLE 0x0001 39 #define PF_OPT_ENABLE 0x0002 40 #define PF_OPT_VERBOSE 0x0004 41 #define PF_OPT_NOACTION 0x0008 42 #define PF_OPT_QUIET 0x0010 43 #define PF_OPT_CLRRULECTRS 0x0020 44 #define PF_OPT_USEDNS 0x0040 45 #define PF_OPT_VERBOSE2 0x0080 46 #define PF_OPT_DUMMYACTION 0x0100 47 #define PF_OPT_DEBUG 0x0200 48 #define PF_OPT_SHOWALL 0x0400 49 #define PF_OPT_OPTIMIZE 0x0800 50 #define PF_OPT_OPTIMIZE_PROFILE 0x1000 51 #define PF_OPT_MERGE 0x2000 52 53 #define PF_TH_ALL 0xFF 54 55 #define PF_NAT_PROXY_PORT_LOW 50001 56 #define PF_NAT_PROXY_PORT_HIGH 65535 57 58 #define FCNT_NAMES { \ 59 "searches", \ 60 "inserts", \ 61 "removals", \ 62 NULL \ 63 } 64 65 struct pfr_buffer; /* forward definition */ 66 struct pf_opt_rule; 67 TAILQ_HEAD(pf_opt_queue, pf_opt_rule); 68 69 70 struct pfctl { 71 int dev; 72 int opts; 73 int loadopt; 74 u_int32_t tticket; /* table ticket */ 75 int tdirty; /* kernel dirty */ 76 u_int32_t rule_nr; 77 struct pfioc_pooladdr paddr; 78 struct pfioc_altq *paltq; 79 struct pfioc_queue *pqueue; 80 struct pfr_buffer *trans; 81 const char *anchor; 82 const char *ruleset; 83 struct pf_opt_queue opt_queue; 84 85 /* 'set foo' options */ 86 u_int32_t timeout[PFTM_MAX]; 87 u_int32_t limit[PF_LIMIT_MAX]; 88 u_int32_t debug; 89 u_int32_t hostid; 90 char *ifname; 91 92 u_int8_t timeout_set[PFTM_MAX]; 93 u_int8_t limit_set[PF_LIMIT_MAX]; 94 u_int8_t debug_set; 95 u_int8_t hostid_set; 96 u_int8_t ifname_set; 97 }; 98 99 struct node_if { 100 char ifname[IFNAMSIZ]; 101 u_int8_t not; 102 u_int8_t dynamic; /* antispoof */ 103 u_int ifa_flags; 104 struct node_if *next; 105 struct node_if *tail; 106 }; 107 108 struct node_host { 109 struct pf_addr_wrap addr; 110 struct pf_addr bcast; 111 struct pf_addr peer; 112 sa_family_t af; 113 u_int8_t not; 114 u_int32_t ifindex; /* link-local IPv6 addrs */ 115 char *ifname; 116 u_int ifa_flags; 117 struct node_host *next; 118 struct node_host *tail; 119 }; 120 /* special flags used by ifa_exists */ 121 #define PF_IFA_FLAG_GROUP 0x10000 122 #define PF_IFA_FLAG_DYNAMIC 0x20000 123 #define PF_IFA_FLAG_CLONABLE 0x40000 124 125 struct node_os { 126 char *os; 127 pf_osfp_t fingerprint; 128 struct node_os *next; 129 struct node_os *tail; 130 }; 131 132 struct node_queue_bw { 133 u_int32_t bw_absolute; 134 u_int16_t bw_percent; 135 }; 136 137 struct node_hfsc_sc { 138 struct node_queue_bw m1; /* slope of 1st segment; bps */ 139 u_int d; /* x-projection of m1; msec */ 140 struct node_queue_bw m2; /* slope of 2nd segment; bps */ 141 u_int8_t used; 142 }; 143 144 struct node_hfsc_opts { 145 struct node_hfsc_sc realtime; 146 struct node_hfsc_sc linkshare; 147 struct node_hfsc_sc upperlimit; 148 int flags; 149 }; 150 151 struct node_queue_opt { 152 int qtype; 153 union { 154 struct cbq_opts cbq_opts; 155 struct priq_opts priq_opts; 156 struct node_hfsc_opts hfsc_opts; 157 } data; 158 }; 159 160 SIMPLEQ_HEAD(node_tinithead, node_tinit); 161 struct node_tinit { /* table initializer */ 162 SIMPLEQ_ENTRY(node_tinit) entries; 163 struct node_host *host; 164 char *file; 165 }; 166 167 168 /* optimizer created tables */ 169 struct pf_opt_tbl { 170 char pt_name[PF_TABLE_NAME_SIZE]; 171 int pt_rulecount; 172 int pt_generated; 173 struct node_tinithead pt_nodes; 174 struct pfr_buffer *pt_buf; 175 }; 176 #define PF_OPT_TABLE_PREFIX "__automatic_" 177 178 /* optimizer pf_rule container */ 179 struct pf_opt_rule { 180 struct pf_rule por_rule; 181 struct pf_opt_tbl *por_src_tbl; 182 struct pf_opt_tbl *por_dst_tbl; 183 char por_anchor[MAXPATHLEN]; 184 u_int64_t por_profile_count; 185 TAILQ_ENTRY(pf_opt_rule) por_entry; 186 TAILQ_ENTRY(pf_opt_rule) por_skip_entry[PF_SKIP_COUNT]; 187 }; 188 189 190 int pfctl_rules(int, char *, int, char *, struct pfr_buffer *); 191 int pfctl_optimize_rules(struct pfctl *); 192 193 int pfctl_add_rule(struct pfctl *, struct pf_rule *, const char *); 194 int pfctl_add_altq(struct pfctl *, struct pf_altq *); 195 int pfctl_add_pool(struct pfctl *, struct pf_pool *, sa_family_t); 196 void pfctl_clear_pool(struct pf_pool *); 197 198 int pfctl_set_timeout(struct pfctl *, const char *, int, int); 199 int pfctl_set_optimization(struct pfctl *, const char *); 200 int pfctl_set_limit(struct pfctl *, const char *, unsigned int); 201 int pfctl_set_logif(struct pfctl *, char *); 202 int pfctl_set_hostid(struct pfctl *, u_int32_t); 203 int pfctl_set_debug(struct pfctl *, char *); 204 int pfctl_set_interface_flags(struct pfctl *, char *, int, int); 205 206 int parse_rules(FILE *, struct pfctl *); 207 int parse_flags(char *); 208 int pfctl_load_anchors(int, int, struct pfr_buffer *); 209 210 void print_pool(struct pf_pool *, u_int16_t, u_int16_t, sa_family_t, int); 211 void print_src_node(struct pf_src_node *, int); 212 void print_rule(struct pf_rule *, const char *, int); 213 void print_tabledef(const char *, int, int, struct node_tinithead *); 214 void print_status(struct pf_status *, int); 215 216 int eval_pfaltq(struct pfctl *, struct pf_altq *, struct node_queue_bw *, 217 struct node_queue_opt *); 218 int eval_pfqueue(struct pfctl *, struct pf_altq *, struct node_queue_bw *, 219 struct node_queue_opt *); 220 221 void print_altq(const struct pf_altq *, unsigned, struct node_queue_bw *, 222 struct node_queue_opt *); 223 void print_queue(const struct pf_altq *, unsigned, struct node_queue_bw *, 224 int, struct node_queue_opt *); 225 226 int pfctl_define_table(char *, int, int, const char *, struct pfr_buffer *, 227 u_int32_t); 228 229 void pfctl_clear_fingerprints(int, int); 230 int pfctl_file_fingerprints(int, int, const char *); 231 pf_osfp_t pfctl_get_fingerprint(const char *); 232 int pfctl_load_fingerprints(int, int); 233 char *pfctl_lookup_fingerprint(pf_osfp_t, char *, size_t); 234 void pfctl_show_fingerprints(int); 235 236 237 struct icmptypeent { 238 const char *name; 239 u_int8_t type; 240 }; 241 242 struct icmpcodeent { 243 const char *name; 244 u_int8_t type; 245 u_int8_t code; 246 }; 247 248 const struct icmptypeent *geticmptypebynumber(u_int8_t, u_int8_t); 249 const struct icmptypeent *geticmptypebyname(char *, u_int8_t); 250 const struct icmpcodeent *geticmpcodebynumber(u_int8_t, u_int8_t, u_int8_t); 251 const struct icmpcodeent *geticmpcodebyname(u_long, char *, u_int8_t); 252 253 struct pf_timeout { 254 const char *name; 255 int timeout; 256 }; 257 258 #define PFCTL_FLAG_FILTER 0x02 259 #define PFCTL_FLAG_NAT 0x04 260 #define PFCTL_FLAG_OPTION 0x08 261 #define PFCTL_FLAG_ALTQ 0x10 262 #define PFCTL_FLAG_TABLE 0x20 263 264 extern const struct pf_timeout pf_timeouts[]; 265 266 void set_ipmask(struct node_host *, u_int8_t); 267 int check_netmask(struct node_host *, sa_family_t); 268 int unmask(struct pf_addr *, sa_family_t); 269 void ifa_load(void); 270 struct node_host *ifa_exists(const char *, int); 271 struct node_host *ifa_lookup(const char *, int); 272 struct node_host *host(const char *); 273 274 int append_addr(struct pfr_buffer *, char *, int); 275 int append_addr_host(struct pfr_buffer *, 276 struct node_host *, int, int); 277 278 #endif /* _PFCTL_PARSER_H_ */ 279
Indexes created Thu Oct 02 01:09:59 GMT 2025