pfctl_parser.h revision 1.3
1 /* $NetBSD: pfctl_parser.h,v 1.3 2004/11/14 11:26:48 yamt Exp $ */ 2 /* $OpenBSD: pfctl_parser.h,v 1.77 2004/07/16 23:44:25 frantzen Exp $ */ 3 4 /* 5 * Copyright (c) 2001 Daniel Hartmeier 6 * All rights reserved. 7 * 8 * Redistribution and use in source and binary forms, with or without 9 * modification, are permitted provided that the following conditions 10 * are met: 11 * 12 * - Redistributions of source code must retain the above copyright 13 * notice, this list of conditions and the following disclaimer. 14 * - Redistributions in binary form must reproduce the above 15 * copyright notice, this list of conditions and the following 16 * disclaimer in the documentation and/or other materials provided 17 * with the distribution. 18 * 19 * THIS SOFTWARE IS PROVIDED BY THE COPYRIGHT HOLDERS AND CONTRIBUTORS 20 * "AS IS" AND ANY EXPRESS OR IMPLIED WARRANTIES, INCLUDING, BUT NOT 21 * LIMITED TO, THE IMPLIED WARRANTIES OF MERCHANTABILITY AND FITNESS 22 * FOR A PARTICULAR PURPOSE ARE DISCLAIMED. IN NO EVENT SHALL THE 23 * COPYRIGHT HOLDERS OR CONTRIBUTORS BE LIABLE FOR ANY DIRECT, INDIRECT, 24 * INCIDENTAL, SPECIAL, EXEMPLARY, OR CONSEQUENTIAL DAMAGES (INCLUDING, 25 * BUT NOT LIMITED TO, PROCUREMENT OF SUBSTITUTE GOODS OR SERVICES; 26 * LOSS OF USE, DATA, OR PROFITS; OR BUSINESS INTERRUPTION) HOWEVER 27 * CAUSED AND ON ANY THEORY OF LIABILITY, WHETHER IN CONTRACT, STRICT 28 * LIABILITY, OR TORT (INCLUDING NEGLIGENCE OR OTHERWISE) ARISING IN 29 * ANY WAY OUT OF THE USE OF THIS SOFTWARE, EVEN IF ADVISED OF THE 30 * POSSIBILITY OF SUCH DAMAGE. 31 * 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_OPTIMIZE_PROFILE 0x1000 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 86 struct node_if { 87 char ifname[IFNAMSIZ]; 88 u_int8_t not; 89 u_int8_t dynamic; /* antispoof */ 90 u_int ifa_flags; 91 struct node_if *next; 92 struct node_if *tail; 93 }; 94 95 struct node_host { 96 struct pf_addr_wrap addr; 97 struct pf_addr bcast; 98 struct pf_addr peer; 99 sa_family_t af; 100 u_int8_t not; 101 u_int32_t ifindex; /* link-local IPv6 addrs */ 102 char *ifname; 103 u_int ifa_flags; 104 struct node_host *next; 105 struct node_host *tail; 106 }; 107 /* special flags used by ifa_exists */ 108 #define PF_IFA_FLAG_GROUP 0x10000 109 #define PF_IFA_FLAG_DYNAMIC 0x20000 110 #define PF_IFA_FLAG_CLONABLE 0x40000 111 112 struct node_os { 113 char *os; 114 pf_osfp_t fingerprint; 115 struct node_os *next; 116 struct node_os *tail; 117 }; 118 119 struct node_queue_bw { 120 u_int32_t bw_absolute; 121 u_int16_t bw_percent; 122 }; 123 124 struct node_hfsc_sc { 125 struct node_queue_bw m1; /* slope of 1st segment; bps */ 126 u_int d; /* x-projection of m1; msec */ 127 struct node_queue_bw m2; /* slope of 2nd segment; bps */ 128 u_int8_t used; 129 }; 130 131 struct node_hfsc_opts { 132 struct node_hfsc_sc realtime; 133 struct node_hfsc_sc linkshare; 134 struct node_hfsc_sc upperlimit; 135 int flags; 136 }; 137 138 struct node_queue_opt { 139 int qtype; 140 union { 141 struct cbq_opts cbq_opts; 142 struct priq_opts priq_opts; 143 struct node_hfsc_opts hfsc_opts; 144 } data; 145 }; 146 147 SIMPLEQ_HEAD(node_tinithead, node_tinit); 148 struct node_tinit { /* table initializer */ 149 SIMPLEQ_ENTRY(node_tinit) entries; 150 struct node_host *host; 151 char *file; 152 }; 153 154 155 /* optimizer created tables */ 156 struct pf_opt_tbl { 157 char pt_name[PF_TABLE_NAME_SIZE]; 158 int pt_rulecount; 159 int pt_generated; 160 struct node_tinithead pt_nodes; 161 struct pfr_buffer *pt_buf; 162 }; 163 #define PF_OPT_TABLE_PREFIX "__automatic_" 164 165 /* optimizer pf_rule container */ 166 struct pf_opt_rule { 167 struct pf_rule por_rule; 168 struct pf_opt_tbl *por_src_tbl; 169 struct pf_opt_tbl *por_dst_tbl; 170 char por_anchor[MAXPATHLEN]; 171 u_int64_t por_profile_count; 172 TAILQ_ENTRY(pf_opt_rule) por_entry; 173 TAILQ_ENTRY(pf_opt_rule) por_skip_entry[PF_SKIP_COUNT]; 174 }; 175 176 177 int pfctl_rules(int, char *, int, char *, struct pfr_buffer *); 178 int pfctl_optimize_rules(struct pfctl *); 179 180 int pfctl_add_rule(struct pfctl *, struct pf_rule *, const char *); 181 int pfctl_add_altq(struct pfctl *, struct pf_altq *); 182 int pfctl_add_pool(struct pfctl *, struct pf_pool *, sa_family_t); 183 void pfctl_clear_pool(struct pf_pool *); 184 185 int pfctl_set_timeout(struct pfctl *, const char *, int, int); 186 int pfctl_set_optimization(struct pfctl *, const char *); 187 int pfctl_set_limit(struct pfctl *, const char *, unsigned int); 188 int pfctl_set_logif(struct pfctl *, char *); 189 int pfctl_set_hostid(struct pfctl *, u_int32_t); 190 int pfctl_set_debug(struct pfctl *, char *); 191 192 int parse_rules(FILE *, struct pfctl *); 193 int parse_flags(char *); 194 int pfctl_load_anchors(int, int, struct pfr_buffer *); 195 196 void print_pool(struct pf_pool *, u_int16_t, u_int16_t, sa_family_t, int); 197 void print_src_node(struct pf_src_node *, int); 198 void print_rule(struct pf_rule *, const char *, int); 199 void print_tabledef(const char *, int, int, struct node_tinithead *); 200 void print_status(struct pf_status *, int); 201 202 int eval_pfaltq(struct pfctl *, struct pf_altq *, struct node_queue_bw *, 203 struct node_queue_opt *); 204 int eval_pfqueue(struct pfctl *, struct pf_altq *, struct node_queue_bw *, 205 struct node_queue_opt *); 206 207 void print_altq(const struct pf_altq *, unsigned, struct node_queue_bw *, 208 struct node_queue_opt *); 209 void print_queue(const struct pf_altq *, unsigned, struct node_queue_bw *, 210 int, struct node_queue_opt *); 211 212 int pfctl_define_table(char *, int, int, const char *, struct pfr_buffer *, 213 u_int32_t); 214 215 void pfctl_clear_fingerprints(int, int); 216 int pfctl_file_fingerprints(int, int, const char *); 217 pf_osfp_t pfctl_get_fingerprint(const char *); 218 int pfctl_load_fingerprints(int, int); 219 char *pfctl_lookup_fingerprint(pf_osfp_t, char *, size_t); 220 void pfctl_show_fingerprints(int); 221 222 223 struct icmptypeent { 224 const char *name; 225 u_int8_t type; 226 }; 227 228 struct icmpcodeent { 229 const char *name; 230 u_int8_t type; 231 u_int8_t code; 232 }; 233 234 const struct icmptypeent *geticmptypebynumber(u_int8_t, u_int8_t); 235 const struct icmptypeent *geticmptypebyname(char *, u_int8_t); 236 const struct icmpcodeent *geticmpcodebynumber(u_int8_t, u_int8_t, u_int8_t); 237 const struct icmpcodeent *geticmpcodebyname(u_long, char *, u_int8_t); 238 239 struct pf_timeout { 240 const char *name; 241 int timeout; 242 }; 243 244 #define PFCTL_FLAG_FILTER 0x02 245 #define PFCTL_FLAG_NAT 0x04 246 #define PFCTL_FLAG_OPTION 0x08 247 #define PFCTL_FLAG_ALTQ 0x10 248 #define PFCTL_FLAG_TABLE 0x20 249 250 extern const struct pf_timeout pf_timeouts[]; 251 252 void set_ipmask(struct node_host *, u_int8_t); 253 int check_netmask(struct node_host *, sa_family_t); 254 int unmask(struct pf_addr *, sa_family_t); 255 void ifa_load(void); 256 struct node_host *ifa_exists(const char *, int); 257 struct node_host *ifa_lookup(const char *, int); 258 struct node_host *host(const char *); 259 260 int append_addr(struct pfr_buffer *, char *, int); 261 int append_addr_host(struct pfr_buffer *, 262 struct node_host *, int, int); 263 264 #endif /* _PFCTL_PARSER_H_ */ 265
Indexes created Thu Oct 02 01:09:59 GMT 2025