1 /************************************************************************ 2 Copyright 1988, 1991 by Carnegie Mellon University 3 4 All Rights Reserved 5 6 Permission to use, copy, modify, and distribute this software and its 7 documentation for any purpose and without fee is hereby granted, provided 8 that the above copyright notice appear in all copies and that both that 9 copyright notice and this permission notice appear in supporting 10 documentation, and that the name of Carnegie Mellon University not be used 11 in advertising or publicity pertaining to distribution of the software 12 without specific, written prior permission. 13 14 CARNEGIE MELLON UNIVERSITY DISCLAIMS ALL WARRANTIES WITH REGARD TO THIS 15 SOFTWARE, INCLUDING ALL IMPLIED WARRANTIES OF MERCHANTABILITY AND FITNESS. 16 IN NO EVENT SHALL CMU BE LIABLE FOR ANY SPECIAL, INDIRECT OR CONSEQUENTIAL 17 DAMAGES OR ANY DAMAGES WHATSOEVER RESULTING FROM LOSS OF USE, DATA OR 18 PROFITS, WHETHER IN AN ACTION OF CONTRACT, NEGLIGENCE OR OTHER TORTIOUS 19 ACTION, ARISING OUT OF OR IN CONNECTION WITH THE USE OR PERFORMANCE OF THIS 20 SOFTWARE. 21 ************************************************************************/ 22 23 24 /* 25 * bootpd.h -- common header file for all the modules of the bootpd program. 26 */ 27 28 #include "bptypes.h" 29 #include "hash.h" 30 #include "hwaddr.h" 31 32 #ifndef TRUE 33 #define TRUE 1 34 #endif 35 #ifndef FALSE 36 #define FALSE 0 37 #endif 38 39 #ifndef PRIVATE 40 #define PRIVATE static 41 #endif 42 43 #ifndef SIGUSR1 44 #define SIGUSR1 30 /* From 4.3 <signal.h> */ 45 #endif 46 47 #define MAXSTRINGLEN 80 /* Max string length */ 48 49 /* Local definitions: */ 50 #define MAX_MSG_SIZE (3*512) /* Maximum packet size */ 51 52 53 /* 54 * Return pointer to static string which gives full network error message. 55 */ 56 #define get_network_errmsg get_errmsg 57 58 59 /* 60 * Data structure used to hold an arbitrary-lengthed list of IP addresses. 61 * The list may be shared among multiple hosts by setting the linkcount 62 * appropriately. 63 */ 64 65 struct in_addr_list { 66 unsigned int linkcount, addrcount; 67 struct in_addr addr[1]; /* Dynamically extended */ 68 }; 69 70 71 /* 72 * Data structures used to hold shared strings and shared binary data. 73 * The linkcount must be set appropriately. 74 */ 75 76 struct shared_string { 77 unsigned int linkcount; 78 char string[1]; /* Dynamically extended */ 79 }; 80 81 struct shared_bindata { 82 unsigned int linkcount, length; 83 byte data[1]; /* Dynamically extended */ 84 }; 85 86 87 /* 88 * Flag structure which indicates which symbols have been defined for a 89 * given host. This information is used to determine which data should or 90 * should not be reported in the bootp packet vendor info field. 91 */ 92 93 struct flag { 94 unsigned bootfile :1, 95 bootserver :1, 96 bootsize :1, 97 bootsize_auto :1, 98 cookie_server :1, 99 domain_server :1, 100 gateway :1, 101 generic :1, 102 haddr :1, 103 homedir :1, 104 htype :1, 105 impress_server :1, 106 iaddr :1, 107 log_server :1, 108 lpr_server :1, 109 name_server :1, 110 name_switch :1, 111 rlp_server :1, 112 send_name :1, 113 subnet_mask :1, 114 tftpdir :1, 115 time_offset :1, 116 time_server :1, 117 dump_file :1, 118 domain_name :1, 119 swap_server :1, 120 root_path :1, 121 exten_file :1, 122 reply_addr :1, 123 nis_domain :1, 124 nis_server :1, 125 ntp_server :1, 126 exec_file :1, 127 msg_size :1, 128 min_wait :1, 129 /* XXX - Add new tags here */ 130 vm_cookie :1; 131 }; 132 133 134 135 /* 136 * The flags structure contains TRUE flags for all the fields which 137 * are considered valid, regardless of whether they were explicitly 138 * specified or indirectly inferred from another entry. 139 * 140 * The gateway and the various server fields all point to a shared list of 141 * IP addresses. 142 * 143 * The hostname, home directory, and bootfile are all shared strings. 144 * 145 * The generic data field is a shared binary data structure. It is used to 146 * hold future RFC1048 vendor data until bootpd is updated to understand it. 147 * 148 * The vm_cookie field specifies the four-octet vendor magic cookie to use 149 * if it is desired to always send the same response to a given host. 150 * 151 * Hopefully, the rest is self-explanatory. 152 */ 153 154 struct host { 155 unsigned linkcount; /* hash list inserts */ 156 struct flag flags; /* ALL valid fields */ 157 struct in_addr_list *cookie_server, 158 *domain_server, 159 *gateway, 160 *impress_server, 161 *log_server, 162 *lpr_server, 163 *name_server, 164 *rlp_server, 165 *time_server, 166 *nis_server, 167 *ntp_server; 168 struct shared_string *bootfile, 169 *hostname, 170 *domain_name, 171 *homedir, 172 *tftpdir, 173 *dump_file, 174 *exten_file, 175 *root_path, 176 *nis_domain, 177 *exec_file; 178 struct shared_bindata *generic; 179 byte vm_cookie[4], 180 htype, /* RFC826 says this should be 16-bits but 181 RFC951 only allocates 1 byte. . . */ 182 haddr[MAXHADDRLEN]; 183 int32 time_offset; 184 u_int32 bootsize, 185 msg_size, 186 min_wait; 187 struct in_addr bootserver, 188 iaddr, 189 swap_server, 190 reply_addr, 191 subnet_mask; 192 /* XXX - Add new tags here (or above as appropriate) */ 193 }; 194 195 196 197 /* 198 * Variables shared among modules. 199 */ 200 201 extern int debug; 202 extern char *bootptab; 203 extern char *progname; 204 205 extern u_char vm_cmu[4]; 206 extern u_char vm_rfc1048[4]; 207 208 extern hash_tbl *hwhashtable; 209 extern hash_tbl *iphashtable; 210 extern hash_tbl *nmhashtable; 211 212