1 /* 2 * dhcpcd - DHCP client daemon 3 * Copyright (c) 2006-2018 Roy Marples <roy@marples.name> 4 * All rights reserved 5 6 * Redistribution and use in source and binary forms, with or without 7 * modification, are permitted provided that the following conditions 8 * are met: 9 * 1. Redistributions of source code must retain the above copyright 10 * notice, this list of conditions and the following disclaimer. 11 * 2. Redistributions in binary form must reproduce the above copyright 12 * notice, this list of conditions and the following disclaimer in the 13 * documentation and/or other materials provided with the distribution. 14 * 15 * THIS SOFTWARE IS PROVIDED BY THE AUTHOR AND CONTRIBUTORS ``AS IS'' AND 16 * ANY EXPRESS OR IMPLIED WARRANTIES, INCLUDING, BUT NOT LIMITED TO, THE 17 * IMPLIED WARRANTIES OF MERCHANTABILITY AND FITNESS FOR A PARTICULAR PURPOSE 18 * ARE DISCLAIMED. IN NO EVENT SHALL THE AUTHOR OR CONTRIBUTORS BE LIABLE 19 * FOR ANY DIRECT, INDIRECT, INCIDENTAL, SPECIAL, EXEMPLARY, OR CONSEQUENTIAL 20 * DAMAGES (INCLUDING, BUT NOT LIMITED TO, PROCUREMENT OF SUBSTITUTE GOODS 21 * OR SERVICES; LOSS OF USE, DATA, OR PROFITS; OR BUSINESS INTERRUPTION) 22 * HOWEVER CAUSED AND ON ANY THEORY OF LIABILITY, WHETHER IN CONTRACT, STRICT 23 * LIABILITY, OR TORT (INCLUDING NEGLIGENCE OR OTHERWISE) ARISING IN ANY WAY 24 * OUT OF THE USE OF THIS SOFTWARE, EVEN IF ADVISED OF THE POSSIBILITY OF 25 * SUCH DAMAGE. 26 */ 27 28 #ifndef IF_OPTIONS_H 29 #define IF_OPTIONS_H 30 31 #include <sys/param.h> 32 #include <sys/socket.h> 33 #include <net/if.h> 34 #include <netinet/in.h> 35 36 #include <getopt.h> 37 #include <limits.h> 38 #include <stdint.h> 39 40 #include "auth.h" 41 #include "route.h" 42 43 /* Don't set any optional arguments here so we retain POSIX 44 * compatibility with getopt */ 45 #define IF_OPTS "146bc:de:f:gh:i:j:kl:m:no:pqr:s:t:u:v:wxy:z:" \ 46 "ABC:DEF:GHI:JKLMNO:PQ:S:TUVW:X:Z:" 47 #define NOERR_IF_OPTS ":" IF_OPTS 48 49 #define DEFAULT_TIMEOUT 30 50 #define DEFAULT_REBOOT 5 51 52 #ifndef HOSTNAME_MAX_LEN 53 #define HOSTNAME_MAX_LEN 250 /* 255 - 3 (FQDN) - 2 (DNS enc) */ 54 #endif 55 #define VENDORCLASSID_MAX_LEN 255 56 #define CLIENTID_MAX_LEN 48 57 #define USERCLASS_MAX_LEN 255 58 #define VENDOR_MAX_LEN 255 59 #define MUDURL_MAX_LEN 255 60 61 #define DHCPCD_ARP (1ULL << 0) 62 #define DHCPCD_RELEASE (1ULL << 1) 63 // unused (1ULL << 2) 64 #define DHCPCD_GATEWAY (1ULL << 3) 65 #define DHCPCD_STATIC (1ULL << 4) 66 #define DHCPCD_DEBUG (1ULL << 5) 67 #define DHCPCD_LASTLEASE (1ULL << 7) 68 #define DHCPCD_INFORM (1ULL << 8) 69 #define DHCPCD_REQUEST (1ULL << 9) 70 #define DHCPCD_IPV4LL (1ULL << 10) 71 #define DHCPCD_DUID (1ULL << 11) 72 #define DHCPCD_PERSISTENT (1ULL << 12) 73 #define DHCPCD_DAEMONISE (1ULL << 14) 74 #define DHCPCD_DAEMONISED (1ULL << 15) 75 #define DHCPCD_TEST (1ULL << 16) 76 #define DHCPCD_MASTER (1ULL << 17) 77 #define DHCPCD_HOSTNAME (1ULL << 18) 78 #define DHCPCD_CLIENTID (1ULL << 19) 79 #define DHCPCD_LINK (1ULL << 20) 80 // unused (1ULL << 21) 81 #define DHCPCD_BACKGROUND (1ULL << 22) 82 #define DHCPCD_VENDORRAW (1ULL << 23) 83 #define DHCPCD_NOWAITIP (1ULL << 24) /* To force daemonise */ 84 #define DHCPCD_WAITIP (1ULL << 25) 85 #define DHCPCD_SLAACPRIVATE (1ULL << 26) 86 #define DHCPCD_CSR_WARNED (1ULL << 27) 87 #define DHCPCD_XID_HWADDR (1ULL << 28) 88 #define DHCPCD_BROADCAST (1ULL << 29) 89 #define DHCPCD_DUMPLEASE (1ULL << 30) 90 #define DHCPCD_IPV6RS (1ULL << 31) 91 #define DHCPCD_IPV6RA_REQRDNSS (1ULL << 32) 92 // unused (1ULL << 33) 93 // unused (1ULL << 34) 94 #define DHCPCD_IPV4 (1ULL << 35) 95 #define DHCPCD_FORKED (1ULL << 36) 96 #define DHCPCD_IPV6 (1ULL << 37) 97 #define DHCPCD_STARTED (1ULL << 38) 98 #define DHCPCD_NOALIAS (1ULL << 39) 99 #define DHCPCD_IA_FORCED (1ULL << 40) 100 #define DHCPCD_STOPPING (1ULL << 41) 101 #define DHCPCD_DEPARTED (1ULL << 42) 102 #define DHCPCD_HOSTNAME_SHORT (1ULL << 43) 103 #define DHCPCD_EXITING (1ULL << 44) 104 #define DHCPCD_WAITIP4 (1ULL << 45) 105 #define DHCPCD_WAITIP6 (1ULL << 46) 106 #define DHCPCD_DEV (1ULL << 47) 107 #define DHCPCD_IAID (1ULL << 48) 108 #define DHCPCD_DHCP (1ULL << 49) 109 #define DHCPCD_DHCP6 (1ULL << 50) 110 #define DHCPCD_IF_UP (1ULL << 51) 111 #define DHCPCD_INFORM6 (1ULL << 52) 112 #define DHCPCD_RTM_PPID (1ULL << 53) 113 #define DHCPCD_IPV6RA_AUTOCONF (1ULL << 54) 114 #define DHCPCD_ROUTER_HOST_ROUTE_WARNED (1ULL << 55) 115 #define DHCPCD_LASTLEASE_EXTEND (1ULL << 56) 116 #define DHCPCD_BOOTP (1ULL << 57) 117 #define DHCPCD_INITIAL_DELAY (1ULL << 58) 118 #define DHCPCD_PRINT_PIDFILE (1ULL << 59) 119 #define DHCPCD_ONESHOT (1ULL << 60) 120 #define DHCPCD_INACTIVE (1ULL << 61) 121 122 #define DHCPCD_NODROP (DHCPCD_EXITING | DHCPCD_PERSISTENT) 123 124 #define DHCPCD_WAITOPTS (DHCPCD_WAITIP | DHCPCD_WAITIP4 | DHCPCD_WAITIP6) 125 126 #define DHCPCD_WARNINGS (DHCPCD_CSR_WARNED | \ 127 DHCPCD_ROUTER_HOST_ROUTE_WARNED) 128 129 extern const struct option cf_options[]; 130 131 struct if_sla { 132 char ifname[IF_NAMESIZE]; 133 uint32_t sla; 134 uint8_t prefix_len; 135 uint64_t suffix; 136 int8_t sla_set; 137 }; 138 139 struct if_ia { 140 uint8_t iaid[4]; 141 #ifdef INET6 142 uint16_t ia_type; 143 uint8_t iaid_set; 144 struct in6_addr addr; 145 uint8_t prefix_len; 146 #ifndef SMALL 147 uint32_t sla_max; 148 size_t sla_len; 149 struct if_sla *sla; 150 #endif 151 #endif 152 }; 153 154 struct vivco { 155 size_t len; 156 uint8_t *data; 157 }; 158 159 struct if_options { 160 time_t mtime; 161 uint8_t iaid[4]; 162 int metric; 163 uint8_t requestmask[256 / NBBY]; 164 uint8_t requiremask[256 / NBBY]; 165 uint8_t nomask[256 / NBBY]; 166 uint8_t rejectmask[256 / NBBY]; 167 uint8_t dstmask[256 / NBBY]; 168 uint8_t requestmasknd[(UINT16_MAX + 1) / NBBY]; 169 uint8_t requiremasknd[(UINT16_MAX + 1) / NBBY]; 170 uint8_t nomasknd[(UINT16_MAX + 1) / NBBY]; 171 uint8_t rejectmasknd[(UINT16_MAX + 1) / NBBY]; 172 uint8_t requestmask6[(UINT16_MAX + 1) / NBBY]; 173 uint8_t requiremask6[(UINT16_MAX + 1) / NBBY]; 174 uint8_t nomask6[(UINT16_MAX + 1) / NBBY]; 175 uint8_t rejectmask6[(UINT16_MAX + 1) / NBBY]; 176 uint32_t leasetime; 177 time_t timeout; 178 time_t reboot; 179 unsigned long long options; 180 181 struct in_addr req_addr; 182 struct in_addr req_mask; 183 struct in_addr req_brd; 184 struct rt_head routes; 185 struct in6_addr req_addr6; 186 uint8_t req_prefix_len; 187 unsigned int mtu; 188 char **config; 189 190 char **environ; 191 char *script; 192 193 char hostname[HOSTNAME_MAX_LEN + 1]; /* We don't store the length */ 194 uint8_t fqdn; 195 uint8_t vendorclassid[VENDORCLASSID_MAX_LEN + 2]; 196 uint8_t clientid[CLIENTID_MAX_LEN + 2]; 197 uint8_t userclass[USERCLASS_MAX_LEN + 2]; 198 uint8_t vendor[VENDOR_MAX_LEN + 2]; 199 uint8_t mudurl[MUDURL_MAX_LEN + 2]; 200 201 size_t blacklist_len; 202 in_addr_t *blacklist; 203 size_t whitelist_len; 204 in_addr_t *whitelist; 205 ssize_t arping_len; 206 in_addr_t *arping; 207 char *fallback; 208 209 struct if_ia *ia; 210 size_t ia_len; 211 212 struct dhcp_opt *dhcp_override; 213 size_t dhcp_override_len; 214 struct dhcp_opt *nd_override; 215 size_t nd_override_len; 216 struct dhcp_opt *dhcp6_override; 217 size_t dhcp6_override_len; 218 uint32_t vivco_en; 219 struct vivco *vivco; 220 size_t vivco_len; 221 struct dhcp_opt *vivso_override; 222 size_t vivso_override_len; 223 224 struct auth auth; 225 }; 226 227 struct if_options *default_config(struct dhcpcd_ctx *); 228 struct if_options *read_config(struct dhcpcd_ctx *, 229 const char *, const char *, const char *); 230 int add_options(struct dhcpcd_ctx *, const char *, 231 struct if_options *, int, char **); 232 void free_dhcp_opt_embenc(struct dhcp_opt *); 233 void free_options(struct dhcpcd_ctx *, struct if_options *); 234 235 #endif 236