1 /* 2 * CDDL HEADER START 3 * 4 * The contents of this file are subject to the terms of the 5 * Common Development and Distribution License, Version 1.0 only 6 * (the "License"). You may not use this file except in compliance 7 * with the License. 8 * 9 * You can obtain a copy of the license at usr/src/OPENSOLARIS.LICENSE 10 * or http://www.opensolaris.org/os/licensing. 11 * See the License for the specific language governing permissions 12 * and limitations under the License. 13 * 14 * When distributing Covered Code, include this CDDL HEADER in each 15 * file and include the License file at usr/src/OPENSOLARIS.LICENSE. 16 * If applicable, add the following below this CDDL HEADER, with the 17 * fields enclosed by brackets "[]" replaced with your own identifying 18 * information: Portions Copyright [yyyy] [name of copyright owner] 19 * 20 * CDDL HEADER END 21 */ 22 23 /* 24 * Copyright 2005 Sun Microsystems, Inc. All rights reserved. 25 * Use is subject to license terms. 26 */ 27 28 /* Copyright (c) 1984, 1986, 1987, 1988, 1989 AT&T */ 29 /* All Rights Reserved */ 30 31 32 #pragma ident "%Z%%M% %I% %E% SMI" 33 34 /*LINTLIBRARY*/ 35 36 #include <sys/types.h> 37 #include <stdio.h> 38 #include <string.h> 39 #include <userdefs.h> 40 #include <user_attr.h> 41 #include <limits.h> 42 #include <stdlib.h> 43 #include <stddef.h> 44 #include <time.h> 45 #include <unistd.h> 46 #include "userdisp.h" 47 #include "funcs.h" 48 #include "messages.h" 49 50 /* Print out a NL when the line gets too long */ 51 #define PRINTNL() \ 52 if (outcount > 40) { \ 53 outcount = 0; \ 54 (void) fprintf(fptr, "\n"); \ 55 } 56 57 #define SKIPWS(ptr) while (*ptr && *ptr == ' ' || *ptr == '\t') ptr++ 58 59 static char *dup_to_nl(char *); 60 61 static struct userdefs defaults = { 62 DEFRID, DEFGROUP, DEFGNAME, DEFPARENT, DEFSKL, 63 DEFSHL, DEFINACT, DEFEXPIRE, DEFAUTH, DEFPROF, 64 DEFROLE, DEFPROJ, DEFPROJNAME, DEFLIMPRIV, 65 DEFDFLTPRIV, DEFLOCK_AFTER_RETRIES 66 }; 67 68 #define INT 0 69 #define STR 1 70 #define PROJID 2 71 72 #define DEFOFF(field) offsetof(struct userdefs, field) 73 #define FIELD(up, pe, type) (*(type *)((char *)(up) + (pe)->off)) 74 75 typedef struct parsent { 76 const char *name; /* deffoo= */ 77 const size_t nmsz; /* length of def= string (excluding \0) */ 78 const int type; /* type of entry */ 79 const ptrdiff_t off; /* offset in userdefs structure */ 80 const char *uakey; /* user_attr key, if defined */ 81 } parsent_t; 82 83 static const parsent_t tab[] = { 84 { GIDSTR, sizeof (GIDSTR) - 1, INT, DEFOFF(defgroup) }, 85 { GNAMSTR, sizeof (GNAMSTR) - 1, STR, DEFOFF(defgname) }, 86 { PARSTR, sizeof (PARSTR) - 1, STR, DEFOFF(defparent) }, 87 { SKLSTR, sizeof (SKLSTR) - 1, STR, DEFOFF(defskel) }, 88 { SHELLSTR, sizeof (SHELLSTR) - 1, STR, DEFOFF(defshell) }, 89 { INACTSTR, sizeof (INACTSTR) - 1, INT, DEFOFF(definact) }, 90 { EXPIRESTR, sizeof (EXPIRESTR) - 1, STR, DEFOFF(defexpire) }, 91 { AUTHSTR, sizeof (AUTHSTR) - 1, STR, DEFOFF(defauth), 92 USERATTR_AUTHS_KW }, 93 { ROLESTR, sizeof (ROLESTR) - 1, STR, DEFOFF(defrole), 94 USERATTR_ROLES_KW }, 95 { PROFSTR, sizeof (PROFSTR) - 1, STR, DEFOFF(defprof), 96 USERATTR_PROFILES_KW }, 97 { PROJSTR, sizeof (PROJSTR) - 1, PROJID, DEFOFF(defproj) }, 98 { PROJNMSTR, sizeof (PROJNMSTR) - 1, STR, DEFOFF(defprojname) }, 99 { LIMPRSTR, sizeof (LIMPRSTR) - 1, STR, DEFOFF(deflimpriv), 100 USERATTR_LIMPRIV_KW }, 101 { DFLTPRSTR, sizeof (DFLTPRSTR) - 1, STR, DEFOFF(defdfltpriv), 102 USERATTR_DFLTPRIV_KW }, 103 { LOCK_AFTER_RETRIESSTR, sizeof (LOCK_AFTER_RETRIESSTR) - 1, 104 STR, DEFOFF(deflock_after_retries), 105 USERATTR_LOCK_AFTER_RETRIES_KW }, 106 }; 107 108 #define NDEF (sizeof (tab) / sizeof (parsent_t)) 109 110 FILE *defptr; /* default file - fptr */ 111 112 static const parsent_t * 113 scan(char **start_p) 114 { 115 static int ind = NDEF - 1; 116 char *cur_p = *start_p; 117 int lastind = ind; 118 119 if (!*cur_p || *cur_p == '\n' || *cur_p == '#') 120 return (NULL); 121 122 /* 123 * The magic in this loop is remembering the last index when 124 * reentering the function; the entries above are also used to 125 * order the output to the default file. 126 */ 127 do { 128 ind++; 129 ind %= NDEF; 130 131 if (strncmp(cur_p, tab[ind].name, tab[ind].nmsz) == 0) { 132 *start_p = cur_p + tab[ind].nmsz; 133 return (&tab[ind]); 134 } 135 } while (ind != lastind); 136 137 return (NULL); 138 } 139 140 /* 141 * getusrdef - access the user defaults file. If it doesn't exist, 142 * then returns default values of (values in userdefs.h): 143 * defrid = 100 144 * defgroup = 1 145 * defgname = other 146 * defparent = /home 147 * defskel = /usr/sadm/skel 148 * defshell = /bin/sh 149 * definact = 0 150 * defexpire = 0 151 * defauth = 0 152 * defprof = 0 153 * defrole = 0 154 * 155 * If getusrdef() is unable to access the defaults file, it 156 * returns a NULL pointer. 157 * 158 * If user defaults file exists, then getusrdef uses values 159 * in it to override the above values. 160 */ 161 162 struct userdefs * 163 getusrdef(char *usertype) 164 { 165 char instr[512], *ptr; 166 const parsent_t *pe; 167 168 if (is_role(usertype)) { 169 if ((defptr = fopen(DEFROLEFILE, "r")) == NULL) { 170 defaults.defshell = DEFROLESHL; 171 defaults.defprof = DEFROLEPROF; 172 return (&defaults); 173 } 174 } else { 175 if ((defptr = fopen(DEFFILE, "r")) == NULL) 176 return (&defaults); 177 } 178 179 while (fgets(instr, sizeof (instr), defptr) != NULL) { 180 ptr = instr; 181 182 SKIPWS(ptr); 183 184 if (*ptr == '#') 185 continue; 186 187 pe = scan(&ptr); 188 189 if (pe != NULL) { 190 switch (pe->type) { 191 case INT: 192 FIELD(&defaults, pe, int) = 193 (int)strtol(ptr, NULL, 10); 194 break; 195 case PROJID: 196 FIELD(&defaults, pe, projid_t) = 197 (projid_t)strtol(ptr, NULL, 10); 198 break; 199 case STR: 200 FIELD(&defaults, pe, char *) = dup_to_nl(ptr); 201 break; 202 } 203 } 204 } 205 206 (void) fclose(defptr); 207 208 return (&defaults); 209 } 210 211 static char * 212 dup_to_nl(char *from) 213 { 214 char *res = strdup(from); 215 216 char *p = strchr(res, '\n'); 217 if (p) 218 *p = '\0'; 219 220 return (res); 221 } 222 223 void 224 dispusrdef(FILE *fptr, unsigned flags, char *usertype) 225 { 226 struct userdefs *deflts = getusrdef(usertype); 227 int outcount = 0; 228 229 /* Print out values */ 230 231 if (flags & D_GROUP) { 232 outcount += fprintf(fptr, "group=%s,%ld ", 233 deflts->defgname, deflts->defgroup); 234 PRINTNL(); 235 } 236 237 if (flags & D_PROJ) { 238 outcount += fprintf(fptr, "project=%s,%ld ", 239 deflts->defprojname, deflts->defproj); 240 PRINTNL(); 241 } 242 243 if (flags & D_BASEDIR) { 244 outcount += fprintf(fptr, "basedir=%s ", deflts->defparent); 245 PRINTNL(); 246 } 247 248 if (flags & D_RID) { 249 outcount += fprintf(fptr, "rid=%ld ", deflts->defrid); 250 PRINTNL(); 251 } 252 253 if (flags & D_SKEL) { 254 outcount += fprintf(fptr, "skel=%s ", deflts->defskel); 255 PRINTNL(); 256 } 257 258 if (flags & D_SHELL) { 259 outcount += fprintf(fptr, "shell=%s ", deflts->defshell); 260 PRINTNL(); 261 } 262 263 if (flags & D_INACT) { 264 outcount += fprintf(fptr, "inactive=%d ", deflts->definact); 265 PRINTNL(); 266 } 267 268 if (flags & D_EXPIRE) { 269 outcount += fprintf(fptr, "expire=%s ", deflts->defexpire); 270 PRINTNL(); 271 } 272 273 if (flags & D_AUTH) { 274 outcount += fprintf(fptr, "auths=%s ", deflts->defauth); 275 PRINTNL(); 276 } 277 278 if (flags & D_PROF) { 279 outcount += fprintf(fptr, "profiles=%s ", deflts->defprof); 280 PRINTNL(); 281 } 282 283 if ((flags & D_ROLE) && 284 (!is_role(usertype))) { 285 outcount += fprintf(fptr, "roles=%s ", deflts->defrole); 286 PRINTNL(); 287 } 288 289 if (flags & D_LPRIV) { 290 outcount += fprintf(fptr, "limitpriv=%s ", 291 deflts->deflimpriv); 292 PRINTNL(); 293 } 294 295 if (flags & D_DPRIV) { 296 outcount += fprintf(fptr, "defaultpriv=%s ", 297 deflts->defdfltpriv); 298 PRINTNL(); 299 } 300 301 if (flags & D_LOCK) { 302 outcount += fprintf(fptr, "lock_after_retries=%s ", 303 deflts->deflock_after_retries); 304 } 305 306 if (outcount > 0) 307 (void) fprintf(fptr, "\n"); 308 } 309 310 /* 311 * putusrdef - 312 * changes default values in defadduser file 313 */ 314 int 315 putusrdef(struct userdefs *defs, char *usertype) 316 { 317 time_t timeval; /* time value from time */ 318 int i; 319 ptrdiff_t skip; 320 char *hdr; 321 322 /* 323 * file format is: 324 * #<tab>Default values for adduser. Changed mm/dd/yy hh:mm:ss. 325 * defgroup=m (m=default group id) 326 * defgname=str1 (str1=default group name) 327 * defparent=str2 (str2=default base directory) 328 * definactive=x (x=default inactive) 329 * defexpire=y (y=default expire) 330 * defproj=z (z=numeric project id) 331 * defprojname=str3 (str3=default project name) 332 * ... etc ... 333 */ 334 335 if (is_role(usertype)) { 336 if ((defptr = fopen(DEFROLEFILE, "w")) == NULL) { 337 errmsg(M_FAILED); 338 return (EX_UPDATE); 339 } 340 } else { 341 if ((defptr = fopen(DEFFILE, "w")) == NULL) { 342 errmsg(M_FAILED); 343 return (EX_UPDATE); 344 } 345 } 346 347 if (lockf(fileno(defptr), F_LOCK, 0) != 0) { 348 /* print error if can't lock whole of DEFFILE */ 349 errmsg(M_UPDATE, "created"); 350 return (EX_UPDATE); 351 } 352 353 if (is_role(usertype)) { 354 /* If it's a role, we must skip the defrole field */ 355 skip = offsetof(struct userdefs, defrole); 356 hdr = FHEADER_ROLE; 357 } else { 358 skip = -1; 359 hdr = FHEADER; 360 } 361 362 /* get time */ 363 timeval = time(NULL); 364 365 /* write it to file */ 366 if (fprintf(defptr, "%s%s\n", hdr, ctime(&timeval)) <= 0) { 367 errmsg(M_UPDATE, "created"); 368 return (EX_UPDATE); 369 } 370 371 for (i = 0; i < NDEF; i++) { 372 int res = 0; 373 374 if (tab[i].off == skip) 375 continue; 376 377 switch (tab[i].type) { 378 case INT: 379 res = fprintf(defptr, "%s%d\n", tab[i].name, 380 FIELD(defs, &tab[i], int)); 381 break; 382 case STR: 383 res = fprintf(defptr, "%s%s\n", tab[i].name, 384 FIELD(defs, &tab[i], char *)); 385 break; 386 case PROJID: 387 res = fprintf(defptr, "%s%d\n", tab[i].name, 388 (int)FIELD(defs, &tab[i], projid_t)); 389 break; 390 } 391 392 if (res <= 0) { 393 errmsg(M_UPDATE, "created"); 394 return (EX_UPDATE); 395 } 396 } 397 398 (void) lockf(fileno(defptr), F_ULOCK, 0); 399 (void) fclose(defptr); 400 401 return (EX_SUCCESS); 402 } 403 404 /* Export command line keys to defaults for useradd -D */ 405 void 406 update_def(struct userdefs *ud) 407 { 408 int i; 409 410 for (i = 0; i < NDEF; i++) { 411 char *val; 412 if (tab[i].uakey != NULL && 413 (val = getsetdefval(tab[i].uakey, NULL)) != NULL) 414 FIELD(ud, &tab[i], char *) = val; 415 } 416 } 417 418 /* Import default keys for ordinary useradd */ 419 void 420 import_def(struct userdefs *ud) 421 { 422 int i; 423 424 for (i = 0; i < NDEF; i++) { 425 if (tab[i].uakey != NULL && tab[i].type == STR) { 426 char *val = FIELD(ud, &tab[i], char *); 427 if (val == getsetdefval(tab[i].uakey, val)) 428 nkeys ++; 429 } 430 } 431 } 432