pfctl_parser.h revision 1.1.1.2
1 /* $OpenBSD: pfctl_parser.h,v 1.77 2004/07/16 23:44:25 frantzen 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 52 #define PF_TH_ALL 0xFF 53 54 #define PF_NAT_PROXY_PORT_LOW 50001 55 #define PF_NAT_PROXY_PORT_HIGH 65535 56 57 #define FCNT_NAMES { \ 58 "searches", \ 59 "inserts", \ 60 "removals", \ 61 NULL \ 62 } 63 64 struct pfr_buffer; /* forward definition */ 65 struct pf_opt_rule; 66 TAILQ_HEAD(pf_opt_queue, pf_opt_rule); 67 68 69 struct pfctl { 70 int dev; 71 int opts; 72 int loadopt; 73 u_int32_t tticket; /* table ticket */ 74 int tdirty; /* kernel dirty */ 75 u_int32_t rule_nr; 76 struct pfioc_pooladdr paddr; 77 struct pfioc_altq *paltq; 78 struct pfioc_queue *pqueue; 79 struct pfr_buffer *trans; 80 const char *anchor; 81 const char *ruleset; 82 struct pf_opt_queue opt_queue; 83 }; 84 85 struct node_if { 86 char ifname[IFNAMSIZ]; 87 u_int8_t not; 88 u_int8_t dynamic; /* antispoof */ 89 u_int ifa_flags; 90 struct node_if *next; 91 struct node_if *tail; 92 }; 93 94 struct node_host { 95 struct pf_addr_wrap addr; 96 struct pf_addr bcast; 97 struct pf_addr peer; 98 sa_family_t af; 99 u_int8_t not; 100 u_int32_t ifindex; /* link-local IPv6 addrs */ 101 char *ifname; 102 u_int ifa_flags; 103 struct node_host *next; 104 struct node_host *tail; 105 }; 106 /* special flags used by ifa_exists */ 107 #define PF_IFA_FLAG_GROUP 0x10000 108 #define PF_IFA_FLAG_DYNAMIC 0x20000 109 #define PF_IFA_FLAG_CLONABLE 0x40000 110 111 struct node_os { 112 char *os; 113 pf_osfp_t fingerprint; 114 struct node_os *next; 115 struct node_os *tail; 116 }; 117 118 struct node_queue_bw { 119 u_int32_t bw_absolute; 120 u_int16_t bw_percent; 121 }; 122 123 struct node_hfsc_sc { 124 struct node_queue_bw m1; /* slope of 1st segment; bps */ 125 u_int d; /* x-projection of m1; msec */ 126 struct node_queue_bw m2; /* slope of 2nd segment; bps */ 127 u_int8_t used; 128 }; 129 130 struct node_hfsc_opts { 131 struct node_hfsc_sc realtime; 132 struct node_hfsc_sc linkshare; 133 struct node_hfsc_sc upperlimit; 134 int flags; 135 }; 136 137 struct node_queue_opt { 138 int qtype; 139 union { 140 struct cbq_opts cbq_opts; 141 struct priq_opts priq_opts; 142 struct node_hfsc_opts hfsc_opts; 143 } data; 144 }; 145 146 SIMPLEQ_HEAD(node_tinithead, node_tinit); 147 struct node_tinit { /* table initializer */ 148 SIMPLEQ_ENTRY(node_tinit) entries; 149 struct node_host *host; 150 char *file; 151 }; 152 153 154 /* optimizer created tables */ 155 struct pf_opt_tbl { 156 char pt_name[PF_TABLE_NAME_SIZE]; 157 int pt_rulecount; 158 int pt_generated; 159 struct node_tinithead pt_nodes; 160 struct pfr_buffer *pt_buf; 161 }; 162 #define PF_OPT_TABLE_PREFIX "__automatic_" 163 164 /* optimizer pf_rule container */ 165 struct pf_opt_rule { 166 struct pf_rule por_rule; 167 struct pf_opt_tbl *por_src_tbl; 168 struct pf_opt_tbl *por_dst_tbl; 169 char por_anchor[MAXPATHLEN]; 170 u_int64_t por_profile_count; 171 TAILQ_ENTRY(pf_opt_rule) por_entry; 172 TAILQ_ENTRY(pf_opt_rule) por_skip_entry[PF_SKIP_COUNT]; 173 }; 174 175 176 int pfctl_rules(int, char *, int, char *, struct pfr_buffer *); 177 int pfctl_optimize_rules(struct pfctl *); 178 179 int pfctl_add_rule(struct pfctl *, struct pf_rule *, const char *); 180 int pfctl_add_altq(struct pfctl *, struct pf_altq *); 181 int pfctl_add_pool(struct pfctl *, struct pf_pool *, sa_family_t); 182 void pfctl_clear_pool(struct pf_pool *); 183 184 int pfctl_set_timeout(struct pfctl *, const char *, int, int); 185 int pfctl_set_optimization(struct pfctl *, const char *); 186 int pfctl_set_limit(struct pfctl *, const char *, unsigned int); 187 int pfctl_set_logif(struct pfctl *, char *); 188 int pfctl_set_hostid(struct pfctl *, u_int32_t); 189 int pfctl_set_debug(struct pfctl *, char *); 190 191 int parse_rules(FILE *, struct pfctl *); 192 int parse_flags(char *); 193 int pfctl_load_anchors(int, int, struct pfr_buffer *); 194 195 void print_pool(struct pf_pool *, u_int16_t, u_int16_t, sa_family_t, int); 196 void print_src_node(struct pf_src_node *, int); 197 void print_rule(struct pf_rule *, const char *, int); 198 void print_tabledef(const char *, int, int, struct node_tinithead *); 199 void print_status(struct pf_status *, int); 200 201 int eval_pfaltq(struct pfctl *, struct pf_altq *, struct node_queue_bw *, 202 struct node_queue_opt *); 203 int eval_pfqueue(struct pfctl *, struct pf_altq *, struct node_queue_bw *, 204 struct node_queue_opt *); 205 206 void print_altq(const struct pf_altq *, unsigned, struct node_queue_bw *, 207 struct node_queue_opt *); 208 void print_queue(const struct pf_altq *, unsigned, struct node_queue_bw *, 209 int, struct node_queue_opt *); 210 211 int pfctl_define_table(char *, int, int, const char *, struct pfr_buffer *, 212 u_int32_t); 213 214 void pfctl_clear_fingerprints(int, int); 215 int pfctl_file_fingerprints(int, int, const char *); 216 pf_osfp_t pfctl_get_fingerprint(const char *); 217 int pfctl_load_fingerprints(int, int); 218 char *pfctl_lookup_fingerprint(pf_osfp_t, char *, size_t); 219 void pfctl_show_fingerprints(int); 220 221 222 struct icmptypeent { 223 const char *name; 224 u_int8_t type; 225 }; 226 227 struct icmpcodeent { 228 const char *name; 229 u_int8_t type; 230 u_int8_t code; 231 }; 232 233 const struct icmptypeent *geticmptypebynumber(u_int8_t, u_int8_t); 234 const struct icmptypeent *geticmptypebyname(char *, u_int8_t); 235 const struct icmpcodeent *geticmpcodebynumber(u_int8_t, u_int8_t, u_int8_t); 236 const struct icmpcodeent *geticmpcodebyname(u_long, char *, u_int8_t); 237 238 struct pf_timeout { 239 const char *name; 240 int timeout; 241 }; 242 243 #define PFCTL_FLAG_FILTER 0x02 244 #define PFCTL_FLAG_NAT 0x04 245 #define PFCTL_FLAG_OPTION 0x08 246 #define PFCTL_FLAG_ALTQ 0x10 247 #define PFCTL_FLAG_TABLE 0x20 248 249 extern const struct pf_timeout pf_timeouts[]; 250 251 void set_ipmask(struct node_host *, u_int8_t); 252 int check_netmask(struct node_host *, sa_family_t); 253 int unmask(struct pf_addr *, sa_family_t); 254 void ifa_load(void); 255 struct node_host *ifa_exists(const char *, int); 256 struct node_host *ifa_lookup(const char *, int); 257 struct node_host *host(const char *); 258 259 int append_addr(struct pfr_buffer *, char *, int); 260 int append_addr_host(struct pfr_buffer *, 261 struct node_host *, int, int); 262 263 #endif /* _PFCTL_PARSER_H_ */ 264
Indexes created Thu Oct 02 01:09:59 GMT 2025