1 /* SPDX-License-Identifier: BSD-2-Clause */ 2 /* 3 * dhcpcd - DHCP client daemon 4 * Copyright (c) 2006-2019 Roy Marples <roy@marples.name> 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 * 1. Redistributions of source code must retain the above copyright 11 * notice, this list of conditions and the following disclaimer. 12 * 2. Redistributions in binary form must reproduce the above copyright 13 * notice, this list of conditions and the following disclaimer in the 14 * documentation and/or other materials provided with the distribution. 15 * 16 * THIS SOFTWARE IS PROVIDED BY THE AUTHOR AND CONTRIBUTORS ``AS IS'' AND 17 * ANY EXPRESS OR IMPLIED WARRANTIES, INCLUDING, BUT NOT LIMITED TO, THE 18 * IMPLIED WARRANTIES OF MERCHANTABILITY AND FITNESS FOR A PARTICULAR PURPOSE 19 * ARE DISCLAIMED. IN NO EVENT SHALL THE AUTHOR OR CONTRIBUTORS BE LIABLE 20 * FOR ANY DIRECT, INDIRECT, INCIDENTAL, SPECIAL, EXEMPLARY, OR CONSEQUENTIAL 21 * DAMAGES (INCLUDING, BUT NOT LIMITED TO, PROCUREMENT OF SUBSTITUTE GOODS 22 * OR SERVICES; LOSS OF USE, DATA, OR PROFITS; OR BUSINESS INTERRUPTION) 23 * HOWEVER CAUSED AND ON ANY THEORY OF LIABILITY, WHETHER IN CONTRACT, STRICT 24 * LIABILITY, OR TORT (INCLUDING NEGLIGENCE OR OTHERWISE) ARISING IN ANY WAY 25 * OUT OF THE USE OF THIS SOFTWARE, EVEN IF ADVISED OF THE POSSIBILITY OF 26 * SUCH DAMAGE. 27 */ 28 29 #ifndef IF_OPTIONS_H 30 #define IF_OPTIONS_H 31 32 #include <sys/param.h> 33 #include <sys/socket.h> 34 #include <net/if.h> 35 #include <netinet/in.h> 36 37 #include <getopt.h> 38 #include <limits.h> 39 #include <stdint.h> 40 41 #include "auth.h" 42 #include "route.h" 43 44 /* Don't set any optional arguments here so we retain POSIX 45 * compatibility with getopt */ 46 #define IF_OPTS "146bc:de:f:gh:i:j:kl:m:no:pqr:s:t:u:v:wxy:z:" \ 47 "ABC:DEF:GHI:JKLMNO:PQ:S:TUVW:X:Z:" 48 #define NOERR_IF_OPTS ":" IF_OPTS 49 50 #define DEFAULT_TIMEOUT 30 51 #define DEFAULT_REBOOT 5 52 53 #ifndef HOSTNAME_MAX_LEN 54 #define HOSTNAME_MAX_LEN 250 /* 255 - 3 (FQDN) - 2 (DNS enc) */ 55 #endif 56 #define VENDORCLASSID_MAX_LEN 255 57 #define CLIENTID_MAX_LEN 48 58 #define USERCLASS_MAX_LEN 255 59 #define VENDOR_MAX_LEN 255 60 #define MUDURL_MAX_LEN 255 61 62 #define DHCPCD_ARP (1ULL << 0) 63 #define DHCPCD_RELEASE (1ULL << 1) 64 #define DHCPCD_RTBUILD (1ULL << 2) 65 #define DHCPCD_GATEWAY (1ULL << 3) 66 #define DHCPCD_STATIC (1ULL << 4) 67 #define DHCPCD_DEBUG (1ULL << 5) 68 #define DHCPCD_LASTLEASE (1ULL << 7) 69 #define DHCPCD_INFORM (1ULL << 8) 70 #define DHCPCD_REQUEST (1ULL << 9) 71 #define DHCPCD_IPV4LL (1ULL << 10) 72 #define DHCPCD_DUID (1ULL << 11) 73 #define DHCPCD_PERSISTENT (1ULL << 12) 74 #define DHCPCD_DAEMONISE (1ULL << 14) 75 #define DHCPCD_DAEMONISED (1ULL << 15) 76 #define DHCPCD_TEST (1ULL << 16) 77 #define DHCPCD_MASTER (1ULL << 17) 78 #define DHCPCD_HOSTNAME (1ULL << 18) 79 #define DHCPCD_CLIENTID (1ULL << 19) 80 #define DHCPCD_LINK (1ULL << 20) 81 // unused (1ULL << 21) 82 #define DHCPCD_BACKGROUND (1ULL << 22) 83 #define DHCPCD_VENDORRAW (1ULL << 23) 84 #define DHCPCD_NOWAITIP (1ULL << 24) /* To force daemonise */ 85 #define DHCPCD_WAITIP (1ULL << 25) 86 #define DHCPCD_SLAACPRIVATE (1ULL << 26) 87 #define DHCPCD_CSR_WARNED (1ULL << 27) 88 #define DHCPCD_XID_HWADDR (1ULL << 28) 89 #define DHCPCD_BROADCAST (1ULL << 29) 90 #define DHCPCD_DUMPLEASE (1ULL << 30) 91 #define DHCPCD_IPV6RS (1ULL << 31) 92 #define DHCPCD_IPV6RA_REQRDNSS (1ULL << 32) 93 // unused (1ULL << 33) 94 // unused (1ULL << 34) 95 #define DHCPCD_IPV4 (1ULL << 35) 96 #define DHCPCD_FORKED (1ULL << 36) 97 #define DHCPCD_IPV6 (1ULL << 37) 98 #define DHCPCD_STARTED (1ULL << 38) 99 #define DHCPCD_NOALIAS (1ULL << 39) 100 #define DHCPCD_IA_FORCED (1ULL << 40) 101 #define DHCPCD_STOPPING (1ULL << 41) 102 #define DHCPCD_DEPARTED (1ULL << 42) 103 #define DHCPCD_HOSTNAME_SHORT (1ULL << 43) 104 #define DHCPCD_EXITING (1ULL << 44) 105 #define DHCPCD_WAITIP4 (1ULL << 45) 106 #define DHCPCD_WAITIP6 (1ULL << 46) 107 #define DHCPCD_DEV (1ULL << 47) 108 #define DHCPCD_IAID (1ULL << 48) 109 #define DHCPCD_DHCP (1ULL << 49) 110 #define DHCPCD_DHCP6 (1ULL << 50) 111 #define DHCPCD_IF_UP (1ULL << 51) 112 #define DHCPCD_INFORM6 (1ULL << 52) 113 #define DHCPCD_WANTDHCP (1ULL << 53) 114 #define DHCPCD_IPV6RA_AUTOCONF (1ULL << 54) 115 #define DHCPCD_ROUTER_HOST_ROUTE_WARNED (1ULL << 55) 116 #define DHCPCD_LASTLEASE_EXTEND (1ULL << 56) 117 #define DHCPCD_BOOTP (1ULL << 57) 118 #define DHCPCD_INITIAL_DELAY (1ULL << 58) 119 #define DHCPCD_PRINT_PIDFILE (1ULL << 59) 120 #define DHCPCD_ONESHOT (1ULL << 60) 121 #define DHCPCD_INACTIVE (1ULL << 61) 122 123 #define DHCPCD_NODROP (DHCPCD_EXITING | DHCPCD_PERSISTENT) 124 125 #define DHCPCD_WAITOPTS (DHCPCD_WAITIP | DHCPCD_WAITIP4 | DHCPCD_WAITIP6) 126 127 #define DHCPCD_WARNINGS (DHCPCD_CSR_WARNED | \ 128 DHCPCD_ROUTER_HOST_ROUTE_WARNED) 129 130 extern const struct option cf_options[]; 131 132 struct if_sla { 133 char ifname[IF_NAMESIZE]; 134 uint32_t sla; 135 uint8_t prefix_len; 136 uint64_t suffix; 137 int8_t sla_set; 138 }; 139 140 struct if_ia { 141 uint8_t iaid[4]; 142 #ifdef INET6 143 uint16_t ia_type; 144 uint8_t iaid_set; 145 struct in6_addr addr; 146 uint8_t prefix_len; 147 #ifndef SMALL 148 uint32_t sla_max; 149 size_t sla_len; 150 struct if_sla *sla; 151 #endif 152 #endif 153 }; 154 155 struct vivco { 156 size_t len; 157 uint8_t *data; 158 }; 159 160 struct if_options { 161 time_t mtime; 162 uint8_t iaid[4]; 163 int metric; 164 uint8_t requestmask[256 / NBBY]; 165 uint8_t requiremask[256 / NBBY]; 166 uint8_t nomask[256 / NBBY]; 167 uint8_t rejectmask[256 / NBBY]; 168 uint8_t dstmask[256 / NBBY]; 169 uint8_t requestmasknd[(UINT16_MAX + 1) / NBBY]; 170 uint8_t requiremasknd[(UINT16_MAX + 1) / NBBY]; 171 uint8_t nomasknd[(UINT16_MAX + 1) / NBBY]; 172 uint8_t rejectmasknd[(UINT16_MAX + 1) / NBBY]; 173 uint8_t requestmask6[(UINT16_MAX + 1) / NBBY]; 174 uint8_t requiremask6[(UINT16_MAX + 1) / NBBY]; 175 uint8_t nomask6[(UINT16_MAX + 1) / NBBY]; 176 uint8_t rejectmask6[(UINT16_MAX + 1) / NBBY]; 177 uint32_t leasetime; 178 time_t timeout; 179 time_t reboot; 180 unsigned long long options; 181 182 struct in_addr req_addr; 183 struct in_addr req_mask; 184 struct in_addr req_brd; 185 rb_tree_t routes; 186 struct in6_addr req_addr6; 187 uint8_t req_prefix_len; 188 unsigned int mtu; 189 char **config; 190 191 char **environ; 192 char *script; 193 194 char hostname[HOSTNAME_MAX_LEN + 1]; /* We don't store the length */ 195 uint8_t fqdn; 196 uint8_t vendorclassid[VENDORCLASSID_MAX_LEN + 2]; 197 uint8_t clientid[CLIENTID_MAX_LEN + 2]; 198 uint8_t userclass[USERCLASS_MAX_LEN + 2]; 199 uint8_t vendor[VENDOR_MAX_LEN + 2]; 200 uint8_t mudurl[MUDURL_MAX_LEN + 2]; 201 202 size_t blacklist_len; 203 in_addr_t *blacklist; 204 size_t whitelist_len; 205 in_addr_t *whitelist; 206 ssize_t arping_len; 207 in_addr_t *arping; 208 char *fallback; 209 210 struct if_ia *ia; 211 size_t ia_len; 212 213 struct dhcp_opt *dhcp_override; 214 size_t dhcp_override_len; 215 struct dhcp_opt *nd_override; 216 size_t nd_override_len; 217 struct dhcp_opt *dhcp6_override; 218 size_t dhcp6_override_len; 219 uint32_t vivco_en; 220 struct vivco *vivco; 221 size_t vivco_len; 222 struct dhcp_opt *vivso_override; 223 size_t vivso_override_len; 224 225 struct auth auth; 226 }; 227 228 struct if_options *default_config(struct dhcpcd_ctx *); 229 struct if_options *read_config(struct dhcpcd_ctx *, 230 const char *, const char *, const char *); 231 int add_options(struct dhcpcd_ctx *, const char *, 232 struct if_options *, int, char **); 233 void free_dhcp_opt_embenc(struct dhcp_opt *); 234 void free_options(struct dhcpcd_ctx *, struct if_options *); 235 236 #endif 237