1 /* 2 * dhcpcd - DHCP client daemon 3 * Copyright (c) 2006-2015 Roy Marples <roy (at) 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 42 /* Don't set any optional arguments here so we retain POSIX 43 * compatibility with getopt */ 44 #define IF_OPTS "46abc:de:f:gh:i:j:kl:m:no:pqr:s:t:u:v:wxy:z:" \ 45 "ABC:DEF:GHI:JKLMO:PQ:RS:TUVW:X:Z:" 46 47 #define DEFAULT_TIMEOUT 30 48 #define DEFAULT_REBOOT 5 49 50 #ifndef HOSTNAME_MAX_LEN 51 #define HOSTNAME_MAX_LEN 250 /* 255 - 3 (FQDN) - 2 (DNS enc) */ 52 #endif 53 #define VENDORCLASSID_MAX_LEN 255 54 #define CLIENTID_MAX_LEN 48 55 #define USERCLASS_MAX_LEN 255 56 #define VENDOR_MAX_LEN 255 57 58 #define DHCPCD_ARP (1ULL << 0) 59 #define DHCPCD_RELEASE (1ULL << 1) 60 #define DHCPCD_DOMAIN (1ULL << 2) 61 #define DHCPCD_GATEWAY (1ULL << 3) 62 #define DHCPCD_STATIC (1ULL << 4) 63 #define DHCPCD_DEBUG (1ULL << 5) 64 #define DHCPCD_LASTLEASE (1ULL << 7) 65 #define DHCPCD_INFORM (1ULL << 8) 66 #define DHCPCD_REQUEST (1ULL << 9) 67 #define DHCPCD_IPV4LL (1ULL << 10) 68 #define DHCPCD_DUID (1ULL << 11) 69 #define DHCPCD_PERSISTENT (1ULL << 12) 70 #define DHCPCD_DAEMONISE (1ULL << 14) 71 #define DHCPCD_DAEMONISED (1ULL << 15) 72 #define DHCPCD_TEST (1ULL << 16) 73 #define DHCPCD_MASTER (1ULL << 17) 74 #define DHCPCD_HOSTNAME (1ULL << 18) 75 #define DHCPCD_CLIENTID (1ULL << 19) 76 #define DHCPCD_LINK (1ULL << 20) 77 #define DHCPCD_QUIET (1ULL << 21) 78 #define DHCPCD_BACKGROUND (1ULL << 22) 79 #define DHCPCD_VENDORRAW (1ULL << 23) 80 #define DHCPCD_NOWAITIP (1ULL << 24) /* To force daemonise */ 81 #define DHCPCD_WAITIP (1ULL << 25) 82 #define DHCPCD_SLAACPRIVATE (1ULL << 26) 83 #define DHCPCD_CSR_WARNED (1ULL << 27) 84 #define DHCPCD_XID_HWADDR (1ULL << 28) 85 #define DHCPCD_BROADCAST (1ULL << 29) 86 #define DHCPCD_DUMPLEASE (1ULL << 30) 87 #define DHCPCD_IPV6RS (1ULL << 31) 88 #define DHCPCD_IPV6RA_REQRDNSS (1ULL << 32) 89 #define DHCPCD_IPV6RA_OWN (1ULL << 33) 90 #define DHCPCD_IPV6RA_OWN_DEFAULT (1ULL << 34) 91 #define DHCPCD_IPV4 (1ULL << 35) 92 #define DHCPCD_FORKED (1ULL << 36) 93 #define DHCPCD_IPV6 (1ULL << 37) 94 #define DHCPCD_STARTED (1ULL << 38) 95 #define DHCPCD_NOALIAS (1ULL << 39) 96 #define DHCPCD_IA_FORCED (1ULL << 40) 97 #define DHCPCD_STOPPING (1ULL << 41) 98 #define DHCPCD_DEPARTED (1ULL << 42) 99 #define DHCPCD_HOSTNAME_SHORT (1ULL << 43) 100 #define DHCPCD_EXITING (1ULL << 44) 101 #define DHCPCD_WAITIP4 (1ULL << 45) 102 #define DHCPCD_WAITIP6 (1ULL << 46) 103 #define DHCPCD_DEV (1ULL << 47) 104 #define DHCPCD_IAID (1ULL << 48) 105 #define DHCPCD_DHCP (1ULL << 49) 106 #define DHCPCD_DHCP6 (1ULL << 50) 107 #define DHCPCD_NOPFXDLG (1ULL << 51) 108 #define DHCPCD_PFXDLGONLY (1ULL << 52) 109 #define DHCPCD_PFXDLGMIX (1ULL << 53) 110 #define DHCPCD_IPV6RA_AUTOCONF (1ULL << 54) 111 #define DHCPCD_ROUTER_HOST_ROUTE_WARNED (1ULL << 55) 112 #define DHCPCD_IPV6RA_ACCEPT_NOPUBLIC (1ULL << 56) 113 #define DHCPCD_BOOTP (1ULL << 57) 114 #define DHCPCD_ARPGW (1ULL << 58) 115 #define DHCPCD_UNICAST_ARP (1ULL << 59) 116 117 #define DHCPCD_WARNINGS (DHCPCD_CSR_WARNED | \ 118 DHCPCD_ROUTER_HOST_ROUTE_WARNED) 119 #define DHCPCD_CONF (DHCPCD_NOPFXDLG | DHCPCD_PFXDLGONLY) 120 121 extern const struct option cf_options[]; 122 123 /* The number of bytes it takes to hold a flag for each of the 256 options. */ 124 #define OPTION_MASK_SIZE (256 / NBBY) 125 126 struct if_sla { 127 char ifname[IF_NAMESIZE]; 128 uint32_t sla; 129 uint8_t prefix_len; 130 int8_t sla_set; 131 }; 132 133 struct if_ia { 134 uint8_t iaid[4]; 135 #ifdef INET6 136 uint16_t ia_type; 137 uint8_t iaid_set; 138 struct in6_addr addr; 139 uint8_t prefix_len; 140 uint32_t sla_max; 141 size_t sla_len; 142 struct if_sla *sla; 143 #endif 144 }; 145 146 struct vivco { 147 size_t len; 148 uint8_t *data; 149 }; 150 151 struct if_options { 152 time_t mtime; 153 uint8_t iaid[4]; 154 int metric; 155 uint8_t requestmask[OPTION_MASK_SIZE]; 156 uint8_t requiremask[OPTION_MASK_SIZE]; 157 uint8_t nomask[OPTION_MASK_SIZE]; 158 uint8_t rejectmask[OPTION_MASK_SIZE]; 159 uint8_t requestmask6[(UINT16_MAX + 1) / NBBY]; 160 uint8_t requiremask6[(UINT16_MAX + 1) / NBBY]; 161 uint8_t nomask6[(UINT16_MAX + 1) / NBBY]; 162 uint8_t rejectmask6[(UINT16_MAX + 1) / NBBY]; 163 uint8_t dstmask[256 / NBBY]; 164 uint32_t leasetime; 165 time_t timeout; 166 time_t reboot; 167 unsigned long long options; 168 169 struct in_addr req_addr; 170 struct in_addr req_mask; 171 struct rt_head *routes; 172 char **config; 173 174 char **environ; 175 char *script; 176 177 char hostname[HOSTNAME_MAX_LEN + 1]; /* We don't store the length */ 178 uint8_t fqdn; 179 uint8_t vendorclassid[VENDORCLASSID_MAX_LEN + 2]; 180 uint8_t clientid[CLIENTID_MAX_LEN + 2]; 181 uint8_t userclass[USERCLASS_MAX_LEN + 2]; 182 uint8_t vendor[VENDOR_MAX_LEN + 2]; 183 184 size_t blacklist_len; 185 in_addr_t *blacklist; 186 size_t whitelist_len; 187 in_addr_t *whitelist; 188 size_t arping_len; 189 in_addr_t *arping; 190 char *fallback; 191 192 struct if_ia *ia; 193 size_t ia_len; 194 195 struct dhcp_opt *dhcp_override; 196 size_t dhcp_override_len; 197 struct dhcp_opt *dhcp6_override; 198 size_t dhcp6_override_len; 199 uint32_t vivco_en; 200 struct vivco *vivco; 201 size_t vivco_len; 202 struct dhcp_opt *vivso_override; 203 size_t vivso_override_len; 204 205 struct auth auth; 206 }; 207 208 struct if_options *read_config(struct dhcpcd_ctx *, 209 const char *, const char *, const char *); 210 int add_options(struct dhcpcd_ctx *, const char *, 211 struct if_options *, int, char **); 212 void free_dhcp_opt_embenc(struct dhcp_opt *); 213 void free_options(struct if_options *); 214 215 #endif 216
