pw_user.c revision 286982
120253Sjoerg/*- 220302Sjoerg * Copyright (C) 1996 320302Sjoerg * David L. Nugent. All rights reserved. 420253Sjoerg * 520253Sjoerg * Redistribution and use in source and binary forms, with or without 620253Sjoerg * modification, are permitted provided that the following conditions 720253Sjoerg * are met: 820253Sjoerg * 1. Redistributions of source code must retain the above copyright 920302Sjoerg * notice, this list of conditions and the following disclaimer. 1020253Sjoerg * 2. Redistributions in binary form must reproduce the above copyright 1120253Sjoerg * notice, this list of conditions and the following disclaimer in the 1220253Sjoerg * documentation and/or other materials provided with the distribution. 1320253Sjoerg * 1420302Sjoerg * THIS SOFTWARE IS PROVIDED BY DAVID L. NUGENT AND CONTRIBUTORS ``AS IS'' AND 1520253Sjoerg * ANY EXPRESS OR IMPLIED WARRANTIES, INCLUDING, BUT NOT LIMITED TO, THE 1620253Sjoerg * IMPLIED WARRANTIES OF MERCHANTABILITY AND FITNESS FOR A PARTICULAR PURPOSE 1720302Sjoerg * ARE DISCLAIMED. IN NO EVENT SHALL DAVID L. NUGENT OR CONTRIBUTORS BE LIABLE 1820253Sjoerg * FOR ANY DIRECT, INDIRECT, INCIDENTAL, SPECIAL, EXEMPLARY, OR CONSEQUENTIAL 1920253Sjoerg * DAMAGES (INCLUDING, BUT NOT LIMITED TO, PROCUREMENT OF SUBSTITUTE GOODS 2020253Sjoerg * OR SERVICES; LOSS OF USE, DATA, OR PROFITS; OR BUSINESS INTERRUPTION) 2120253Sjoerg * HOWEVER CAUSED AND ON ANY THEORY OF LIABILITY, WHETHER IN CONTRACT, STRICT 2220253Sjoerg * LIABILITY, OR TORT (INCLUDING NEGLIGENCE OR OTHERWISE) ARISING IN ANY WAY 2320253Sjoerg * OUT OF THE USE OF THIS SOFTWARE, EVEN IF ADVISED OF THE POSSIBILITY OF 2420253Sjoerg * SUCH DAMAGE. 2544229Sdavidn * 2620253Sjoerg */ 2720253Sjoerg 2830259Scharnier#ifndef lint 2930259Scharnierstatic const char rcsid[] = 3050479Speter "$FreeBSD: head/usr.sbin/pw/pw_user.c 286982 2015-08-21 07:09:53Z bapt $"; 3130259Scharnier#endif /* not lint */ 3230259Scharnier 33286201Sbapt#include <sys/param.h> 34286201Sbapt#include <sys/resource.h> 35286201Sbapt#include <sys/time.h> 36286201Sbapt#include <sys/types.h> 37286201Sbapt 3830259Scharnier#include <ctype.h> 39286201Sbapt#include <dirent.h> 4030259Scharnier#include <err.h> 41286982Sbapt#include <errno.h> 4220253Sjoerg#include <fcntl.h> 43286201Sbapt#include <grp.h> 44286201Sbapt#include <pwd.h> 45286201Sbapt#include <libutil.h> 46286201Sbapt#include <login_cap.h> 4730259Scharnier#include <paths.h> 48286201Sbapt#include <string.h> 49286201Sbapt#include <sysexits.h> 5020253Sjoerg#include <termios.h> 51286201Sbapt#include <unistd.h> 52286201Sbapt 5320253Sjoerg#include "pw.h" 5420253Sjoerg#include "bitmap.h" 55286201Sbapt#include "psdate.h" 5620253Sjoerg 5723318Sache#define LOGNAMESIZE (MAXLOGNAME-1) 5822394Sdavidn 5952512Sdavidnstatic char locked_str[] = "*LOCKED*"; 6024214Sache 61286196Sbaptstatic struct passwd fakeuser = { 62286196Sbapt "nouser", 63286196Sbapt "*", 64286196Sbapt -1, 65286196Sbapt -1, 66286196Sbapt 0, 67286196Sbapt "", 68286196Sbapt "User &", 69286196Sbapt "/nonexistent", 70286196Sbapt "/bin/sh", 71286196Sbapt 0, 72286196Sbapt 0 73286196Sbapt}; 7420253Sjoerg 75286196Sbaptstatic int print_user(struct passwd *pwd, bool pretty, bool v7); 76286196Sbaptstatic uid_t pw_uidpolicy(struct userconf *cnf, intmax_t id); 77286196Sbaptstatic uid_t pw_gidpolicy(struct userconf *cnf, char *grname, char *nam, 78286196Sbapt gid_t prefer, bool dryrun); 79286196Sbaptstatic char *pw_homepolicy(struct userconf * cnf, char *homedir, 80286196Sbapt const char *user); 81286196Sbaptstatic char *pw_shellpolicy(struct userconf * cnf); 82286196Sbaptstatic char *pw_password(struct userconf * cnf, char const * user, 83286196Sbapt bool dryrun); 84286196Sbaptstatic char *shell_path(char const * path, char *shells[], char *sh); 85286196Sbaptstatic void rmat(uid_t uid); 86286196Sbaptstatic void rmopie(char const * name); 87286196Sbapt 88283961Sbaptstatic void 89286982Sbaptmkdir_home_parents(int dfd, const char *dir) 90286982Sbapt{ 91286982Sbapt struct stat st; 92286982Sbapt char *dirs, *tmp; 93286982Sbapt 94286982Sbapt if (*dir != '/') 95286982Sbapt errx(EX_DATAERR, "invalid base directory for home '%s'", dir); 96286982Sbapt 97286982Sbapt dir++; 98286982Sbapt 99286982Sbapt if (fstatat(dfd, dir, &st, 0) != -1) { 100286982Sbapt if (S_ISDIR(st.st_mode)) 101286982Sbapt return; 102286982Sbapt errx(EX_OSFILE, "root home `/%s' is not a directory", dir); 103286982Sbapt } 104286982Sbapt 105286982Sbapt dirs = strdup(dir); 106286982Sbapt if (dirs == NULL) 107286982Sbapt errx(EX_UNAVAILABLE, "out of memory"); 108286982Sbapt 109286982Sbapt tmp = strrchr(dirs, '/'); 110286982Sbapt if (tmp == NULL) 111286982Sbapt return; 112286982Sbapt tmp[0] = '\0'; 113286982Sbapt 114286982Sbapt /* 115286982Sbapt * This is a kludge especially for Joerg :) 116286982Sbapt * If the home directory would be created in the root partition, then 117286982Sbapt * we really create it under /usr which is likely to have more space. 118286982Sbapt * But we create a symlink from cnf->home -> "/usr" -> cnf->home 119286982Sbapt */ 120286982Sbapt if (strchr(dirs, '/') == NULL) { 121286982Sbapt asprintf(&tmp, "usr/%s", dirs); 122286982Sbapt if (tmp == NULL) 123286982Sbapt errx(EX_UNAVAILABLE, "out of memory"); 124286982Sbapt if (mkdirat(dfd, tmp, _DEF_DIRMODE) != -1 || errno == EEXIST) { 125286982Sbapt fchownat(dfd, tmp, 0, 0, 0); 126286982Sbapt symlinkat(tmp, dfd, dirs + 1); 127286982Sbapt } 128286982Sbapt free(tmp); 129286982Sbapt } 130286982Sbapt tmp = dirs; 131286982Sbapt if (fstatat(dfd, dirs, &st, 0) == -1) { 132286982Sbapt while ((tmp = strchr(tmp + 1, '/')) != NULL) { 133286982Sbapt *tmp = '\0'; 134286982Sbapt if (fstatat(dfd, dirs, &st, 0) == -1) { 135286982Sbapt if (mkdirat(dfd, dirs, _DEF_DIRMODE) == -1) 136286982Sbapt err(EX_OSFILE, "'%s' (root home parent) is not a directory", dirs); 137286982Sbapt } 138286982Sbapt *tmp = '/'; 139286982Sbapt } 140286982Sbapt } 141286982Sbapt if (fstatat(dfd, dirs, &st, 0) == -1) { 142286982Sbapt if (mkdirat(dfd, dirs, _DEF_DIRMODE) == -1) 143286982Sbapt err(EX_OSFILE, "'%s' (root home parent) is not a directory", dirs); 144286982Sbapt fchownat(dfd, dirs, 0, 0, 0); 145286982Sbapt } 146286982Sbapt 147286982Sbapt free(dirs); 148286982Sbapt} 149286982Sbapt 150286982Sbaptstatic void 151286196Sbaptcreate_and_populate_homedir(struct userconf *cnf, struct passwd *pwd, 152286196Sbapt const char *skeldir, mode_t homemode, bool update) 153283961Sbapt{ 154285430Sbapt int skelfd = -1; 155283961Sbapt 156286982Sbapt /* Create home parents directories */ 157286982Sbapt mkdir_home_parents(conf.rootfd, pwd->pw_dir); 158286982Sbapt 159285430Sbapt if (skeldir != NULL && *skeldir != '\0') { 160285434Sbapt if (*skeldir == '/') 161285434Sbapt skeldir++; 162285434Sbapt skelfd = openat(conf.rootfd, skeldir, O_DIRECTORY|O_CLOEXEC); 163283961Sbapt } 164283961Sbapt 165286196Sbapt copymkdir(conf.rootfd, pwd->pw_dir, skelfd, homemode, pwd->pw_uid, 166285430Sbapt pwd->pw_gid, 0); 167286196Sbapt pw_log(cnf, update ? M_UPDATE : M_ADD, W_USER, "%s(%ju) home %s made", 168286196Sbapt pwd->pw_name, (uintmax_t)pwd->pw_uid, pwd->pw_dir); 169283961Sbapt} 170283961Sbapt 171285133Sbaptstatic int 172286196Sbaptpw_set_passwd(struct passwd *pwd, int fd, bool precrypted, bool update) 173285133Sbapt{ 174285133Sbapt int b, istty; 175285133Sbapt struct termios t, n; 176285133Sbapt login_cap_t *lc; 177285133Sbapt char line[_PASSWORD_LEN+1]; 178285133Sbapt char *p; 179285133Sbapt 180286196Sbapt if (fd == '-') { 181285133Sbapt if (!pwd->pw_passwd || *pwd->pw_passwd != '*') { 182285133Sbapt pwd->pw_passwd = "*"; /* No access */ 183285133Sbapt return (1); 184285133Sbapt } 185285133Sbapt return (0); 186285133Sbapt } 187285133Sbapt 188286196Sbapt if ((istty = isatty(fd))) { 189286196Sbapt if (tcgetattr(fd, &t) == -1) 190285133Sbapt istty = 0; 191285133Sbapt else { 192285137Sbapt n = t; 193285133Sbapt n.c_lflag &= ~(ECHO); 194286196Sbapt tcsetattr(fd, TCSANOW, &n); 195285133Sbapt printf("%s%spassword for user %s:", 196285133Sbapt update ? "new " : "", 197286196Sbapt precrypted ? "encrypted " : "", 198285133Sbapt pwd->pw_name); 199285133Sbapt fflush(stdout); 200285133Sbapt } 201285133Sbapt } 202286196Sbapt b = read(fd, line, sizeof(line) - 1); 203285133Sbapt if (istty) { /* Restore state */ 204286196Sbapt tcsetattr(fd, TCSANOW, &t); 205285133Sbapt fputc('\n', stdout); 206285133Sbapt fflush(stdout); 207285133Sbapt } 208285133Sbapt 209285133Sbapt if (b < 0) 210285133Sbapt err(EX_IOERR, "-%c file descriptor", 211286196Sbapt precrypted ? 'H' : 'h'); 212285133Sbapt line[b] = '\0'; 213285133Sbapt if ((p = strpbrk(line, "\r\n")) != NULL) 214285133Sbapt *p = '\0'; 215285133Sbapt if (!*line) 216285133Sbapt errx(EX_DATAERR, "empty password read on file descriptor %d", 217286196Sbapt fd); 218286196Sbapt if (precrypted) { 219285133Sbapt if (strchr(line, ':') != NULL) 220285137Sbapt errx(EX_DATAERR, "bad encrypted password"); 221286196Sbapt pwd->pw_passwd = strdup(line); 222285133Sbapt } else { 223285133Sbapt lc = login_getpwclass(pwd); 224285133Sbapt if (lc == NULL || 225285133Sbapt login_setcryptfmt(lc, "sha512", NULL) == NULL) 226285133Sbapt warn("setting crypt(3) format"); 227285133Sbapt login_close(lc); 228285133Sbapt pwd->pw_passwd = pw_pwcrypt(line); 229285133Sbapt } 230285133Sbapt return (1); 231285133Sbapt} 232285133Sbapt 233285405Sbaptstatic void 234286196Sbaptperform_chgpwent(const char *name, struct passwd *pwd, char *nispasswd) 235285405Sbapt{ 236285405Sbapt int rc; 237286196Sbapt struct passwd *nispwd; 238285405Sbapt 239286196Sbapt /* duplicate for nis so that chgpwent is not modifying before NIS */ 240286196Sbapt if (nispasswd && *nispasswd == '/') 241286196Sbapt nispwd = pw_dup(pwd); 242286196Sbapt 243285405Sbapt rc = chgpwent(name, pwd); 244285405Sbapt if (rc == -1) 245285405Sbapt errx(EX_IOERR, "user '%s' does not exist (NIS?)", pwd->pw_name); 246285405Sbapt else if (rc != 0) 247285405Sbapt err(EX_IOERR, "passwd file update"); 248285405Sbapt 249286196Sbapt if (nispasswd && *nispasswd == '/') { 250286196Sbapt rc = chgnispwent(nispasswd, name, nispwd); 251285405Sbapt if (rc == -1) 252285405Sbapt warn("User '%s' not found in NIS passwd", pwd->pw_name); 253285984Sbapt else if (rc != 0) 254285405Sbapt warn("NIS passwd update"); 255285405Sbapt /* NOTE: NIS-only update errors are not fatal */ 256285405Sbapt } 257285405Sbapt} 258285405Sbapt 259285405Sbapt/* 260285405Sbapt * The M_LOCK and M_UNLOCK functions simply add or remove 261285405Sbapt * a "*LOCKED*" prefix from in front of the password to 262285405Sbapt * prevent it decoding correctly, and therefore prevents 263285405Sbapt * access. Of course, this only prevents access via 264285405Sbapt * password authentication (not ssh, kerberos or any 265285405Sbapt * other method that does not use the UNIX password) but 266285405Sbapt * that is a known limitation. 267285405Sbapt */ 268285405Sbaptstatic int 269286196Sbaptpw_userlock(char *arg1, int mode) 270285405Sbapt{ 271285405Sbapt struct passwd *pwd = NULL; 272285405Sbapt char *passtmp = NULL; 273286196Sbapt char *name; 274285405Sbapt bool locked = false; 275286196Sbapt uid_t id; 276285405Sbapt 277286196Sbapt if (geteuid() != 0) 278286196Sbapt errx(EX_NOPERM, "you must be root"); 279286196Sbapt 280286196Sbapt if (arg1 == NULL) 281285405Sbapt errx(EX_DATAERR, "username or id required"); 282285405Sbapt 283286259Sed if (arg1[strspn(arg1, "0123456789")] == '\0') 284286196Sbapt id = pw_checkid(arg1, UID_MAX); 285286196Sbapt else 286286196Sbapt name = arg1; 287286196Sbapt 288285405Sbapt pwd = (name != NULL) ? GETPWNAM(pw_checkname(name, 0)) : GETPWUID(id); 289285405Sbapt if (pwd == NULL) { 290285405Sbapt if (name == NULL) 291286196Sbapt errx(EX_NOUSER, "no such uid `%ju'", (uintmax_t) id); 292285405Sbapt errx(EX_NOUSER, "no such user `%s'", name); 293285405Sbapt } 294285405Sbapt 295285405Sbapt if (name == NULL) 296285405Sbapt name = pwd->pw_name; 297285405Sbapt 298285405Sbapt if (strncmp(pwd->pw_passwd, locked_str, sizeof(locked_str) -1) == 0) 299285405Sbapt locked = true; 300285405Sbapt if (mode == M_LOCK && locked) 301285405Sbapt errx(EX_DATAERR, "user '%s' is already locked", pwd->pw_name); 302285405Sbapt if (mode == M_UNLOCK && !locked) 303285405Sbapt errx(EX_DATAERR, "user '%s' is not locked", pwd->pw_name); 304285405Sbapt 305285405Sbapt if (mode == M_LOCK) { 306285405Sbapt asprintf(&passtmp, "%s%s", locked_str, pwd->pw_passwd); 307285405Sbapt if (passtmp == NULL) /* disaster */ 308285405Sbapt errx(EX_UNAVAILABLE, "out of memory"); 309285405Sbapt pwd->pw_passwd = passtmp; 310285405Sbapt } else { 311285405Sbapt pwd->pw_passwd += sizeof(locked_str)-1; 312285405Sbapt } 313285405Sbapt 314286196Sbapt perform_chgpwent(name, pwd, NULL); 315285405Sbapt free(passtmp); 316285405Sbapt 317285405Sbapt return (EXIT_SUCCESS); 318285405Sbapt} 319285405Sbapt 320286196Sbaptstatic uid_t 321286196Sbaptpw_uidpolicy(struct userconf * cnf, intmax_t id) 32220253Sjoerg{ 323286196Sbapt struct passwd *pwd; 324286196Sbapt struct bitmap bm; 325286196Sbapt uid_t uid = (uid_t) - 1; 32620253Sjoerg 32720267Sjoerg /* 328286196Sbapt * Check the given uid, if any 32920253Sjoerg */ 330286196Sbapt if (id >= 0) { 331286196Sbapt uid = (uid_t) id; 33220253Sjoerg 333286196Sbapt if ((pwd = GETPWUID(uid)) != NULL && conf.checkduplicate) 334286196Sbapt errx(EX_DATAERR, "uid `%ju' has already been allocated", 335286196Sbapt (uintmax_t)pwd->pw_uid); 336286196Sbapt return (uid); 33720253Sjoerg } 33821052Sdavidn /* 339286196Sbapt * We need to allocate the next available uid under one of 340286196Sbapt * two policies a) Grab the first unused uid b) Grab the 341286196Sbapt * highest possible unused uid 34221052Sdavidn */ 343286196Sbapt if (cnf->min_uid >= cnf->max_uid) { /* Sanity 344286196Sbapt * claus^H^H^H^Hheck */ 345286196Sbapt cnf->min_uid = 1000; 346286196Sbapt cnf->max_uid = 32000; 34721052Sdavidn } 348286196Sbapt bm = bm_alloc(cnf->max_uid - cnf->min_uid + 1); 34921052Sdavidn 35020253Sjoerg /* 351286196Sbapt * Now, let's fill the bitmap from the password file 35220253Sjoerg */ 353286196Sbapt SETPWENT(); 354286196Sbapt while ((pwd = GETPWENT()) != NULL) 355286196Sbapt if (pwd->pw_uid >= (uid_t) cnf->min_uid && pwd->pw_uid <= (uid_t) cnf->max_uid) 356286196Sbapt bm_setbit(&bm, pwd->pw_uid - cnf->min_uid); 357286196Sbapt ENDPWENT(); 35852527Sdavidn 35920253Sjoerg /* 360286196Sbapt * Then apply the policy, with fallback to reuse if necessary 36120253Sjoerg */ 362286196Sbapt if (cnf->reuse_uids || (uid = (uid_t) (bm_lastset(&bm) + cnf->min_uid + 1)) > cnf->max_uid) 363286196Sbapt uid = (uid_t) (bm_firstunset(&bm) + cnf->min_uid); 36420253Sjoerg 36520267Sjoerg /* 366286196Sbapt * Another sanity check 36720267Sjoerg */ 368286196Sbapt if (uid < cnf->min_uid || uid > cnf->max_uid) 369286196Sbapt errx(EX_SOFTWARE, "unable to allocate a new uid - range fully used"); 370286196Sbapt bm_dealloc(&bm); 371286196Sbapt return (uid); 37220253Sjoerg} 37320253Sjoerg 374286196Sbaptstatic uid_t 375286196Sbaptpw_gidpolicy(struct userconf *cnf, char *grname, char *nam, gid_t prefer, bool dryrun) 37620253Sjoerg{ 37720253Sjoerg struct group *grp; 37820253Sjoerg gid_t gid = (uid_t) - 1; 37920253Sjoerg 38020253Sjoerg /* 38120253Sjoerg * Check the given gid, if any 38220253Sjoerg */ 38344229Sdavidn SETGRENT(); 384286196Sbapt if (grname) { 385286196Sbapt if ((grp = GETGRNAM(grname)) == NULL) { 386286196Sbapt gid = pw_checkid(grname, GID_MAX); 387286196Sbapt grp = GETGRGID(gid); 38820253Sjoerg } 38920253Sjoerg gid = grp->gr_gid; 390262865Sjulian } else if ((grp = GETGRNAM(nam)) != NULL && 391262865Sjulian (grp->gr_mem == NULL || grp->gr_mem[0] == NULL)) { 39220267Sjoerg gid = grp->gr_gid; /* Already created? Use it anyway... */ 39320253Sjoerg } else { 394286196Sbapt intmax_t grid = -1; 39520253Sjoerg 39620253Sjoerg /* 39720253Sjoerg * We need to auto-create a group with the user's name. We 39820253Sjoerg * can send all the appropriate output to our sister routine 39920253Sjoerg * bit first see if we can create a group with gid==uid so we 40020253Sjoerg * can keep the user and group ids in sync. We purposely do 40120253Sjoerg * NOT check the gid range if we can force the sync. If the 40220253Sjoerg * user's name dups an existing group, then the group add 40320253Sjoerg * function will happily handle that case for us and exit. 40420253Sjoerg */ 405285414Sbapt if (GETGRGID(prefer) == NULL) 406285414Sbapt grid = prefer; 407286196Sbapt if (dryrun) { 408285395Sbapt gid = pw_groupnext(cnf, true); 409285395Sbapt } else { 410286196Sbapt if (grid == -1) 411286196Sbapt grid = pw_groupnext(cnf, true); 412286196Sbapt groupadd(cnf, nam, grid, NULL, -1, false, false, false); 41344229Sdavidn if ((grp = GETGRNAM(nam)) != NULL) 41420267Sjoerg gid = grp->gr_gid; 41520267Sjoerg } 41620253Sjoerg } 41744229Sdavidn ENDGRENT(); 418286196Sbapt return (gid); 41920253Sjoerg} 42020253Sjoerg 421286196Sbaptstatic char * 422286196Sbaptpw_homepolicy(struct userconf * cnf, char *homedir, const char *user) 42320253Sjoerg{ 424282699Sbapt static char home[128]; 42520253Sjoerg 426286196Sbapt if (homedir) 427286196Sbapt return (homedir); 42820253Sjoerg 429282699Sbapt if (cnf->home == NULL || *cnf->home == '\0') 430282699Sbapt errx(EX_CONFIG, "no base home directory set"); 431282699Sbapt snprintf(home, sizeof(home), "%s/%s", cnf->home, user); 432282699Sbapt 433282699Sbapt return (home); 43420253Sjoerg} 43520253Sjoerg 436286196Sbaptstatic char * 43720253Sjoergshell_path(char const * path, char *shells[], char *sh) 43820253Sjoerg{ 43920253Sjoerg if (sh != NULL && (*sh == '/' || *sh == '\0')) 44020253Sjoerg return sh; /* specified full path or forced none */ 44120253Sjoerg else { 44220253Sjoerg char *p; 44320253Sjoerg char paths[_UC_MAXLINE]; 44420253Sjoerg 44520253Sjoerg /* 44620253Sjoerg * We need to search paths 44720253Sjoerg */ 448130633Srobert strlcpy(paths, path, sizeof(paths)); 44920253Sjoerg for (p = strtok(paths, ": \t\r\n"); p != NULL; p = strtok(NULL, ": \t\r\n")) { 45020253Sjoerg int i; 45120253Sjoerg static char shellpath[256]; 45220253Sjoerg 45320253Sjoerg if (sh != NULL) { 454282700Sbapt snprintf(shellpath, sizeof(shellpath), "%s/%s", p, sh); 45520253Sjoerg if (access(shellpath, X_OK) == 0) 45620253Sjoerg return shellpath; 45720253Sjoerg } else 45820253Sjoerg for (i = 0; i < _UC_MAXSHELLS && shells[i] != NULL; i++) { 459282700Sbapt snprintf(shellpath, sizeof(shellpath), "%s/%s", p, shells[i]); 46020253Sjoerg if (access(shellpath, X_OK) == 0) 46120253Sjoerg return shellpath; 46220253Sjoerg } 46320253Sjoerg } 46420253Sjoerg if (sh == NULL) 46530259Scharnier errx(EX_OSFILE, "can't find shell `%s' in shell paths", sh); 46630259Scharnier errx(EX_CONFIG, "no default shell available or defined"); 46720253Sjoerg return NULL; 46820253Sjoerg } 46920253Sjoerg} 47020253Sjoerg 471286196Sbaptstatic char * 472286196Sbaptpw_shellpolicy(struct userconf * cnf) 47320253Sjoerg{ 47420253Sjoerg 475286196Sbapt return shell_path(cnf->shelldir, cnf->shells, cnf->shell_default); 47620253Sjoerg} 47720253Sjoerg 478179365Santoine#define SALTSIZE 32 47920253Sjoerg 480179365Santoinestatic char const chars[] = "0123456789abcdefghijklmnopqrstuvwxyzABCDEFGHIJKLMNOPQRSTUVWXYZ./"; 481179365Santoine 482286196Sbaptchar * 48320253Sjoergpw_pwcrypt(char *password) 48420253Sjoerg{ 48520253Sjoerg int i; 486179365Santoine char salt[SALTSIZE + 1]; 487231994Skevlo char *cryptpw; 48820253Sjoerg static char buf[256]; 48920253Sjoerg 49020253Sjoerg /* 49120253Sjoerg * Calculate a salt value 49220253Sjoerg */ 493179365Santoine for (i = 0; i < SALTSIZE; i++) 494181785Sache salt[i] = chars[arc4random_uniform(sizeof(chars) - 1)]; 495179365Santoine salt[SALTSIZE] = '\0'; 49620253Sjoerg 497231994Skevlo cryptpw = crypt(password, salt); 498231994Skevlo if (cryptpw == NULL) 499231994Skevlo errx(EX_CONFIG, "crypt(3) failure"); 500231994Skevlo return strcpy(buf, cryptpw); 50120253Sjoerg} 50220253Sjoerg 503286196Sbaptstatic char * 504286196Sbaptpw_password(struct userconf * cnf, char const * user, bool dryrun) 50520253Sjoerg{ 50620253Sjoerg int i, l; 50720253Sjoerg char pwbuf[32]; 50820253Sjoerg 50920253Sjoerg switch (cnf->default_password) { 51020253Sjoerg case -1: /* Random password */ 51173563Skris l = (arc4random() % 8 + 8); /* 8 - 16 chars */ 51220253Sjoerg for (i = 0; i < l; i++) 513181785Sache pwbuf[i] = chars[arc4random_uniform(sizeof(chars)-1)]; 51420253Sjoerg pwbuf[i] = '\0'; 51520253Sjoerg 51620253Sjoerg /* 51720253Sjoerg * We give this information back to the user 51820253Sjoerg */ 519286196Sbapt if (conf.fd == -1 && !dryrun) { 52061957Sache if (isatty(STDOUT_FILENO)) 52120712Sdavidn printf("Password for '%s' is: ", user); 52220253Sjoerg printf("%s\n", pwbuf); 52320253Sjoerg fflush(stdout); 52420253Sjoerg } 52520253Sjoerg break; 52620253Sjoerg 52720253Sjoerg case -2: /* No password at all! */ 52820253Sjoerg return ""; 52920253Sjoerg 53020253Sjoerg case 0: /* No login - default */ 53120253Sjoerg default: 53220253Sjoerg return "*"; 53320253Sjoerg 53420253Sjoerg case 1: /* user's name */ 535130633Srobert strlcpy(pwbuf, user, sizeof(pwbuf)); 53620253Sjoerg break; 53720253Sjoerg } 53820253Sjoerg return pw_pwcrypt(pwbuf); 53920253Sjoerg} 54020253Sjoerg 541284111Sbaptstatic int 542286196Sbaptprint_user(struct passwd * pwd, bool pretty, bool v7) 543284111Sbapt{ 544286196Sbapt int j; 545286196Sbapt char *p; 546286196Sbapt struct group *grp = GETGRGID(pwd->pw_gid); 547286196Sbapt char uname[60] = "User &", office[60] = "[None]", 548286196Sbapt wphone[60] = "[None]", hphone[60] = "[None]"; 549286196Sbapt char acexpire[32] = "[None]", pwexpire[32] = "[None]"; 550286196Sbapt struct tm * tptr; 551286196Sbapt 552286196Sbapt if (!pretty) { 553286196Sbapt p = v7 ? pw_make_v7(pwd) : pw_make(pwd); 554286196Sbapt printf("%s\n", p); 555286196Sbapt free(p); 556286196Sbapt return (EXIT_SUCCESS); 557286196Sbapt } 558286196Sbapt 559286196Sbapt if ((p = strtok(pwd->pw_gecos, ",")) != NULL) { 560286196Sbapt strlcpy(uname, p, sizeof(uname)); 561286196Sbapt if ((p = strtok(NULL, ",")) != NULL) { 562286196Sbapt strlcpy(office, p, sizeof(office)); 563286196Sbapt if ((p = strtok(NULL, ",")) != NULL) { 564286196Sbapt strlcpy(wphone, p, sizeof(wphone)); 565286196Sbapt if ((p = strtok(NULL, "")) != NULL) { 566286196Sbapt strlcpy(hphone, p, sizeof(hphone)); 567286196Sbapt } 568286196Sbapt } 569286196Sbapt } 570286196Sbapt } 571286196Sbapt /* 572286196Sbapt * Handle '&' in gecos field 573286196Sbapt */ 574286196Sbapt if ((p = strchr(uname, '&')) != NULL) { 575286196Sbapt int l = strlen(pwd->pw_name); 576286196Sbapt int m = strlen(p); 577286196Sbapt 578286196Sbapt memmove(p + l, p + 1, m); 579286196Sbapt memmove(p, pwd->pw_name, l); 580286196Sbapt *p = (char) toupper((unsigned char)*p); 581286196Sbapt } 582286196Sbapt if (pwd->pw_expire > (time_t)0 && (tptr = localtime(&pwd->pw_expire)) != NULL) 583286196Sbapt strftime(acexpire, sizeof acexpire, "%c", tptr); 584286196Sbapt if (pwd->pw_change > (time_t)0 && (tptr = localtime(&pwd->pw_change)) != NULL) 585286196Sbapt strftime(pwexpire, sizeof pwexpire, "%c", tptr); 586286196Sbapt printf("Login Name: %-15s #%-12ju Group: %-15s #%ju\n" 587286196Sbapt " Full Name: %s\n" 588286196Sbapt " Home: %-26.26s Class: %s\n" 589286196Sbapt " Shell: %-26.26s Office: %s\n" 590286196Sbapt "Work Phone: %-26.26s Home Phone: %s\n" 591286196Sbapt "Acc Expire: %-26.26s Pwd Expire: %s\n", 592286196Sbapt pwd->pw_name, (uintmax_t)pwd->pw_uid, 593286196Sbapt grp ? grp->gr_name : "(invalid)", (uintmax_t)pwd->pw_gid, 594286196Sbapt uname, pwd->pw_dir, pwd->pw_class, 595286196Sbapt pwd->pw_shell, office, wphone, hphone, 596286196Sbapt acexpire, pwexpire); 597286196Sbapt SETGRENT(); 598286196Sbapt j = 0; 599286196Sbapt while ((grp=GETGRENT()) != NULL) { 600286196Sbapt int i = 0; 601286196Sbapt if (grp->gr_mem != NULL) { 602286196Sbapt while (grp->gr_mem[i] != NULL) { 603286196Sbapt if (strcmp(grp->gr_mem[i], pwd->pw_name)==0) { 604286196Sbapt printf(j++ == 0 ? " Groups: %s" : ",%s", grp->gr_name); 605286196Sbapt break; 606286196Sbapt } 607286196Sbapt ++i; 608286196Sbapt } 609286196Sbapt } 610286196Sbapt } 611286196Sbapt ENDGRENT(); 612286196Sbapt printf("%s", j ? "\n" : ""); 613286196Sbapt return (EXIT_SUCCESS); 614286196Sbapt} 615286196Sbapt 616286196Sbaptchar * 617286196Sbaptpw_checkname(char *name, int gecos) 618286196Sbapt{ 619286196Sbapt char showch[8]; 620286196Sbapt const char *badchars, *ch, *showtype; 621286196Sbapt int reject; 622286196Sbapt 623286196Sbapt ch = name; 624286196Sbapt reject = 0; 625286196Sbapt if (gecos) { 626286196Sbapt /* See if the name is valid as a gecos (comment) field. */ 627286196Sbapt badchars = ":!@"; 628286196Sbapt showtype = "gecos field"; 629286196Sbapt } else { 630286196Sbapt /* See if the name is valid as a userid or group. */ 631286196Sbapt badchars = " ,\t:+&#%$^()!@~*?<>=|\\/\""; 632286196Sbapt showtype = "userid/group name"; 633286196Sbapt /* Userids and groups can not have a leading '-'. */ 634286196Sbapt if (*ch == '-') 635286196Sbapt reject = 1; 636286196Sbapt } 637286196Sbapt if (!reject) { 638286196Sbapt while (*ch) { 639286196Sbapt if (strchr(badchars, *ch) != NULL || *ch < ' ' || 640286196Sbapt *ch == 127) { 641286196Sbapt reject = 1; 642286196Sbapt break; 643286196Sbapt } 644286196Sbapt /* 8-bit characters are only allowed in GECOS fields */ 645286196Sbapt if (!gecos && (*ch & 0x80)) { 646286196Sbapt reject = 1; 647286196Sbapt break; 648286196Sbapt } 649286196Sbapt ch++; 650286196Sbapt } 651286196Sbapt } 652286196Sbapt /* 653286196Sbapt * A `$' is allowed as the final character for userids and groups, 654286196Sbapt * mainly for the benefit of samba. 655286196Sbapt */ 656286196Sbapt if (reject && !gecos) { 657286196Sbapt if (*ch == '$' && *(ch + 1) == '\0') { 658286196Sbapt reject = 0; 659286196Sbapt ch++; 660286196Sbapt } 661286196Sbapt } 662286196Sbapt if (reject) { 663286196Sbapt snprintf(showch, sizeof(showch), (*ch >= ' ' && *ch < 127) 664286196Sbapt ? "`%c'" : "0x%02x", *ch); 665286196Sbapt errx(EX_DATAERR, "invalid character %s at position %td in %s", 666286196Sbapt showch, (ch - name), showtype); 667286196Sbapt } 668286196Sbapt if (!gecos && (ch - name) > LOGNAMESIZE) 669286196Sbapt errx(EX_USAGE, "name too long `%s' (max is %d)", name, 670286196Sbapt LOGNAMESIZE); 671286196Sbapt 672286196Sbapt return (name); 673286196Sbapt} 674286196Sbapt 675286196Sbaptstatic void 676286196Sbaptrmat(uid_t uid) 677286196Sbapt{ 678286196Sbapt DIR *d = opendir("/var/at/jobs"); 679286196Sbapt 680286196Sbapt if (d != NULL) { 681286196Sbapt struct dirent *e; 682286196Sbapt 683286196Sbapt while ((e = readdir(d)) != NULL) { 684286196Sbapt struct stat st; 685286196Sbapt 686286196Sbapt if (strncmp(e->d_name, ".lock", 5) != 0 && 687286196Sbapt stat(e->d_name, &st) == 0 && 688286196Sbapt !S_ISDIR(st.st_mode) && 689286196Sbapt st.st_uid == uid) { 690286196Sbapt char tmp[MAXPATHLEN]; 691286196Sbapt 692286202Sbapt snprintf(tmp, sizeof(tmp), "/usr/bin/atrm %s", 693286202Sbapt e->d_name); 694286196Sbapt system(tmp); 695286196Sbapt } 696286196Sbapt } 697286196Sbapt closedir(d); 698286196Sbapt } 699286196Sbapt} 700286196Sbapt 701286196Sbaptstatic void 702286196Sbaptrmopie(char const * name) 703286196Sbapt{ 704286196Sbapt char tmp[1014]; 705286196Sbapt FILE *fp; 706286196Sbapt int fd; 707286196Sbapt size_t len; 708286196Sbapt off_t atofs = 0; 709286196Sbapt 710286196Sbapt if ((fd = openat(conf.rootfd, "etc/opiekeys", O_RDWR)) == -1) 711286196Sbapt return; 712286196Sbapt 713286196Sbapt fp = fdopen(fd, "r+"); 714286196Sbapt len = strlen(name); 715286196Sbapt 716286196Sbapt while (fgets(tmp, sizeof(tmp), fp) != NULL) { 717286196Sbapt if (strncmp(name, tmp, len) == 0 && tmp[len]==' ') { 718286196Sbapt /* Comment username out */ 719286196Sbapt if (fseek(fp, atofs, SEEK_SET) == 0) 720286196Sbapt fwrite("#", 1, 1, fp); 721286196Sbapt break; 722286196Sbapt } 723286196Sbapt atofs = ftell(fp); 724286196Sbapt } 725286196Sbapt /* 726286196Sbapt * If we got an error of any sort, don't update! 727286196Sbapt */ 728286196Sbapt fclose(fp); 729286196Sbapt} 730286196Sbapt 731286196Sbaptint 732286196Sbaptpw_user_next(int argc, char **argv, char *name __unused) 733286196Sbapt{ 734286196Sbapt struct userconf *cnf = NULL; 735286196Sbapt const char *cfg = NULL; 736286196Sbapt int ch; 737286196Sbapt bool quiet = false; 738286196Sbapt uid_t next; 739286196Sbapt 740286196Sbapt while ((ch = getopt(argc, argv, "Cq")) != -1) { 741286196Sbapt switch (ch) { 742286196Sbapt case 'C': 743286196Sbapt cfg = optarg; 744286196Sbapt break; 745286196Sbapt case 'q': 746286217Sadrian quiet = true; 747286196Sbapt break; 748286196Sbapt } 749286196Sbapt } 750286196Sbapt 751286196Sbapt if (quiet) 752286196Sbapt freopen(_PATH_DEVNULL, "w", stderr); 753286196Sbapt 754286196Sbapt cnf = get_userconfig(cfg); 755286196Sbapt 756286196Sbapt next = pw_uidpolicy(cnf, -1); 757286196Sbapt 758286196Sbapt printf("%ju:", (uintmax_t)next); 759286196Sbapt pw_groupnext(cnf, quiet); 760286196Sbapt 761286196Sbapt return (EXIT_SUCCESS); 762286196Sbapt} 763286196Sbapt 764286196Sbaptint 765286196Sbaptpw_user_show(int argc, char **argv, char *arg1) 766286196Sbapt{ 767285401Sbapt struct passwd *pwd = NULL; 768286196Sbapt char *name = NULL; 769286218Sbapt intmax_t id = -1; 770286196Sbapt int ch; 771286196Sbapt bool all = false; 772286196Sbapt bool pretty = false; 773286196Sbapt bool force = false; 774286196Sbapt bool v7 = false; 775286196Sbapt bool quiet = false; 77620253Sjoerg 777286196Sbapt if (arg1 != NULL) { 778286259Sed if (arg1[strspn(arg1, "0123456789")] == '\0') 779286196Sbapt id = pw_checkid(arg1, UID_MAX); 780286196Sbapt else 781286196Sbapt name = arg1; 782286196Sbapt } 783286196Sbapt 784286196Sbapt while ((ch = getopt(argc, argv, "C:qn:u:FPa7")) != -1) { 785286196Sbapt switch (ch) { 786286196Sbapt case 'C': 787286196Sbapt /* ignore compatibility */ 788286196Sbapt break; 789286196Sbapt case 'q': 790286196Sbapt quiet = true; 791286196Sbapt break; 792286196Sbapt case 'n': 793286196Sbapt name = optarg; 794286196Sbapt break; 795286196Sbapt case 'u': 796286196Sbapt id = pw_checkid(optarg, UID_MAX); 797286196Sbapt break; 798286196Sbapt case 'F': 799286196Sbapt force = true; 800286196Sbapt break; 801286196Sbapt case 'P': 802286196Sbapt pretty = true; 803286196Sbapt break; 804286196Sbapt case 'a': 805286196Sbapt all = true; 806286196Sbapt break; 807286196Sbapt case 7: 808286196Sbapt v7 = true; 809286196Sbapt break; 810286196Sbapt } 811286196Sbapt } 812286196Sbapt 813286196Sbapt if (quiet) 814286196Sbapt freopen(_PATH_DEVNULL, "w", stderr); 815286196Sbapt 816286196Sbapt if (all) { 817286196Sbapt SETPWENT(); 818286196Sbapt while ((pwd = GETPWENT()) != NULL) 819286196Sbapt print_user(pwd, pretty, v7); 820286196Sbapt ENDPWENT(); 821286196Sbapt return (EXIT_SUCCESS); 822286196Sbapt } 823286196Sbapt 824285401Sbapt if (id < 0 && name == NULL) 825285401Sbapt errx(EX_DATAERR, "username or id required"); 826285401Sbapt 827285401Sbapt pwd = (name != NULL) ? GETPWNAM(pw_checkname(name, 0)) : GETPWUID(id); 828285401Sbapt if (pwd == NULL) { 829286196Sbapt if (force) { 830286196Sbapt pwd = &fakeuser; 831286196Sbapt } else { 832286196Sbapt if (name == NULL) 833286196Sbapt errx(EX_NOUSER, "no such uid `%ju'", 834286196Sbapt (uintmax_t) id); 835286196Sbapt errx(EX_NOUSER, "no such user `%s'", name); 836286196Sbapt } 837286196Sbapt } 838286196Sbapt 839286196Sbapt return (print_user(pwd, pretty, v7)); 840286196Sbapt} 841286196Sbapt 842286196Sbaptint 843286196Sbaptpw_user_del(int argc, char **argv, char *arg1) 844286196Sbapt{ 845286196Sbapt struct userconf *cnf = NULL; 846286196Sbapt struct passwd *pwd = NULL; 847286196Sbapt struct group *gr, *grp; 848286196Sbapt char *name = NULL; 849286196Sbapt char grname[MAXLOGNAME]; 850286196Sbapt char *nispasswd = NULL; 851286196Sbapt char file[MAXPATHLEN]; 852286196Sbapt char home[MAXPATHLEN]; 853286196Sbapt const char *cfg = NULL; 854286196Sbapt struct stat st; 855286218Sbapt intmax_t id = -1; 856286196Sbapt int ch, rc; 857286196Sbapt bool nis = false; 858286196Sbapt bool deletehome = false; 859286196Sbapt bool quiet = false; 860286196Sbapt 861286196Sbapt if (arg1 != NULL) { 862286259Sed if (arg1[strspn(arg1, "0123456789")] == '\0') 863286196Sbapt id = pw_checkid(arg1, UID_MAX); 864286196Sbapt else 865286196Sbapt name = arg1; 866286196Sbapt } 867286196Sbapt 868286196Sbapt while ((ch = getopt(argc, argv, "C:qn:u:rYy:")) != -1) { 869286196Sbapt switch (ch) { 870286196Sbapt case 'C': 871286196Sbapt cfg = optarg; 872286196Sbapt break; 873286196Sbapt case 'q': 874286196Sbapt quiet = true; 875286196Sbapt break; 876286196Sbapt case 'n': 877286196Sbapt name = optarg; 878286196Sbapt break; 879286196Sbapt case 'u': 880286196Sbapt id = pw_checkid(optarg, UID_MAX); 881286196Sbapt break; 882286196Sbapt case 'r': 883286196Sbapt deletehome = true; 884286196Sbapt break; 885286196Sbapt case 'y': 886286196Sbapt nispasswd = optarg; 887286196Sbapt break; 888286196Sbapt case 'Y': 889286196Sbapt nis = true; 890286196Sbapt break; 891286196Sbapt } 892286196Sbapt } 893286196Sbapt 894286196Sbapt if (quiet) 895286196Sbapt freopen(_PATH_DEVNULL, "w", stderr); 896286196Sbapt 897286196Sbapt if (id < 0 && name == NULL) 898286196Sbapt errx(EX_DATAERR, "username or id required"); 899286196Sbapt 900286196Sbapt cnf = get_userconfig(cfg); 901286196Sbapt 902286196Sbapt if (nispasswd == NULL) 903286196Sbapt nispasswd = cnf->nispasswd; 904286196Sbapt 905286196Sbapt pwd = (name != NULL) ? GETPWNAM(pw_checkname(name, 0)) : GETPWUID(id); 906286196Sbapt if (pwd == NULL) { 907285401Sbapt if (name == NULL) 908286196Sbapt errx(EX_NOUSER, "no such uid `%ju'", (uintmax_t) id); 909285401Sbapt errx(EX_NOUSER, "no such user `%s'", name); 910285401Sbapt } 911285989Sbapt 912285989Sbapt if (PWF._altdir == PWF_REGULAR && 913286196Sbapt ((pwd->pw_fields & _PWF_SOURCE) != _PWF_FILES)) { 914286196Sbapt if ((pwd->pw_fields & _PWF_SOURCE) == _PWF_NIS) { 915286196Sbapt if (!nis && nispasswd && *nispasswd != '/') 916286196Sbapt errx(EX_NOUSER, "Cannot remove NIS user `%s'", 917286196Sbapt name); 918286196Sbapt } else { 919286196Sbapt errx(EX_NOUSER, "Cannot remove non local user `%s'", 920286196Sbapt name); 921286196Sbapt } 922286196Sbapt } 923285989Sbapt 924286196Sbapt id = pwd->pw_uid; 925285401Sbapt if (name == NULL) 926285401Sbapt name = pwd->pw_name; 927285401Sbapt 928284111Sbapt if (strcmp(pwd->pw_name, "root") == 0) 929284111Sbapt errx(EX_DATAERR, "cannot remove user 'root'"); 930284111Sbapt 931286196Sbapt /* Remove opie record from /etc/opiekeys */ 932285433Sbapt if (PWALTDIR() != PWF_ALT) 933284111Sbapt rmopie(pwd->pw_name); 934284111Sbapt 935285433Sbapt if (!PWALTDIR()) { 936285433Sbapt /* Remove crontabs */ 937284111Sbapt snprintf(file, sizeof(file), "/var/cron/tabs/%s", pwd->pw_name); 938284111Sbapt if (access(file, F_OK) == 0) { 939286202Sbapt snprintf(file, sizeof(file), "crontab -u %s -r", 940286202Sbapt pwd->pw_name); 941284111Sbapt system(file); 942284111Sbapt } 943284111Sbapt } 944286196Sbapt 945284111Sbapt /* 946284111Sbapt * Save these for later, since contents of pwd may be 947284111Sbapt * invalidated by deletion 948284111Sbapt */ 949284111Sbapt snprintf(file, sizeof(file), "%s/%s", _PATH_MAILDIR, pwd->pw_name); 950284111Sbapt strlcpy(home, pwd->pw_dir, sizeof(home)); 951284111Sbapt gr = GETGRGID(pwd->pw_gid); 952284111Sbapt if (gr != NULL) 953284111Sbapt strlcpy(grname, gr->gr_name, LOGNAMESIZE); 954284111Sbapt else 955284111Sbapt grname[0] = '\0'; 956284111Sbapt 957284111Sbapt rc = delpwent(pwd); 958284111Sbapt if (rc == -1) 959284111Sbapt err(EX_IOERR, "user '%s' does not exist", pwd->pw_name); 960284111Sbapt else if (rc != 0) 961284111Sbapt err(EX_IOERR, "passwd update"); 962284111Sbapt 963286196Sbapt if (nis && nispasswd && *nispasswd=='/') { 964286196Sbapt rc = delnispwent(nispasswd, name); 965284111Sbapt if (rc == -1) 966285401Sbapt warnx("WARNING: user '%s' does not exist in NIS passwd", 967285401Sbapt pwd->pw_name); 968284111Sbapt else if (rc != 0) 969284111Sbapt warn("WARNING: NIS passwd update"); 970284111Sbapt } 971284111Sbapt 972284128Sbapt grp = GETGRNAM(name); 973284111Sbapt if (grp != NULL && 974284111Sbapt (grp->gr_mem == NULL || *grp->gr_mem == NULL) && 975284128Sbapt strcmp(name, grname) == 0) 976284128Sbapt delgrent(GETGRNAM(name)); 977284111Sbapt SETGRENT(); 978284111Sbapt while ((grp = GETGRENT()) != NULL) { 979284111Sbapt int i, j; 980284111Sbapt char group[MAXLOGNAME]; 981284113Sbapt if (grp->gr_mem == NULL) 982284113Sbapt continue; 983284113Sbapt 984284113Sbapt for (i = 0; grp->gr_mem[i] != NULL; i++) { 985284128Sbapt if (strcmp(grp->gr_mem[i], name) != 0) 986284113Sbapt continue; 987284113Sbapt 988284113Sbapt for (j = i; grp->gr_mem[j] != NULL; j++) 989284113Sbapt grp->gr_mem[j] = grp->gr_mem[j+1]; 990284113Sbapt strlcpy(group, grp->gr_name, MAXLOGNAME); 991284113Sbapt chggrent(group, grp); 992284111Sbapt } 993284111Sbapt } 994284111Sbapt ENDGRENT(); 995284111Sbapt 996286196Sbapt pw_log(cnf, M_DELETE, W_USER, "%s(%ju) account removed", name, 997286196Sbapt (uintmax_t)id); 998284111Sbapt 999285433Sbapt /* Remove mail file */ 1000285433Sbapt if (PWALTDIR() != PWF_ALT) 1001285433Sbapt unlinkat(conf.rootfd, file + 1, 0); 1002284111Sbapt 1003286196Sbapt /* Remove at jobs */ 1004286196Sbapt if (!PWALTDIR() && getpwuid(id) == NULL) 1005286196Sbapt rmat(id); 1006284111Sbapt 1007285433Sbapt /* Remove home directory and contents */ 1008286196Sbapt if (PWALTDIR() != PWF_ALT && deletehome && *home == '/' && 1009286196Sbapt GETPWUID(id) == NULL && 1010285433Sbapt fstatat(conf.rootfd, home + 1, &st, 0) != -1) { 1011286196Sbapt rm_r(conf.rootfd, home, id); 1012286196Sbapt pw_log(cnf, M_DELETE, W_USER, "%s(%ju) home '%s' %s" 1013286196Sbapt "removed", name, (uintmax_t)id, home, 1014285433Sbapt fstatat(conf.rootfd, home + 1, &st, 0) == -1 ? "" : "not " 1015285433Sbapt "completely "); 1016284111Sbapt } 1017284111Sbapt 1018284111Sbapt return (EXIT_SUCCESS); 1019284111Sbapt} 1020284111Sbapt 1021286196Sbaptint 1022286196Sbaptpw_user_lock(int argc, char **argv, char *arg1) 102320253Sjoerg{ 1024286196Sbapt int ch; 102520253Sjoerg 1026286196Sbapt while ((ch = getopt(argc, argv, "Cq")) != -1) { 1027286196Sbapt switch (ch) { 1028286196Sbapt case 'C': 1029286196Sbapt case 'q': 1030286196Sbapt /* compatibility */ 1031286196Sbapt break; 103220253Sjoerg } 1033286196Sbapt } 103420253Sjoerg 1035286196Sbapt return (pw_userlock(arg1, M_LOCK)); 1036286196Sbapt} 1037286196Sbapt 1038286196Sbaptint 1039286196Sbaptpw_user_unlock(int argc, char **argv, char *arg1) 1040286196Sbapt{ 1041286196Sbapt int ch; 1042286196Sbapt 1043286196Sbapt while ((ch = getopt(argc, argv, "Cq")) != -1) { 1044286196Sbapt switch (ch) { 1045286196Sbapt case 'C': 1046286196Sbapt case 'q': 1047286196Sbapt /* compatibility */ 1048286196Sbapt break; 104920253Sjoerg } 105020253Sjoerg } 1051286196Sbapt 1052286196Sbapt return (pw_userlock(arg1, M_UNLOCK)); 105320253Sjoerg} 105420253Sjoerg 1055286196Sbaptstatic struct group * 1056286196Sbaptgroup_from_name_or_id(char *name) 105720253Sjoerg{ 1058286196Sbapt const char *errstr = NULL; 1059286196Sbapt struct group *grp; 1060286196Sbapt uintmax_t id; 106120253Sjoerg 1062286196Sbapt if ((grp = GETGRNAM(name)) == NULL) { 1063286196Sbapt id = strtounum(name, 0, GID_MAX, &errstr); 1064286196Sbapt if (errstr) 1065286196Sbapt errx(EX_NOUSER, "group `%s' does not exist", name); 1066286196Sbapt grp = GETGRGID(id); 1067286196Sbapt if (grp == NULL) 1068286196Sbapt errx(EX_NOUSER, "group `%s' does not exist", name); 106920253Sjoerg } 1070286196Sbapt 1071286196Sbapt return (grp); 1072286196Sbapt} 1073286196Sbapt 1074286196Sbaptstatic void 1075286196Sbaptsplit_groups(StringList **groups, char *groupsstr) 1076286196Sbapt{ 1077286196Sbapt struct group *grp; 1078286196Sbapt char *p; 1079286196Sbapt char tok[] = ", \t"; 1080286196Sbapt 1081286196Sbapt for (p = strtok(groupsstr, tok); p != NULL; p = strtok(NULL, tok)) { 1082286196Sbapt grp = group_from_name_or_id(p); 1083286196Sbapt if (*groups == NULL) 1084286196Sbapt *groups = sl_init(); 1085286196Sbapt sl_add(*groups, newstr(grp->gr_name)); 1086286196Sbapt } 1087286196Sbapt} 1088286196Sbapt 1089286196Sbaptstatic void 1090286196Sbaptvalidate_grname(struct userconf *cnf, char *group) 1091286196Sbapt{ 1092286196Sbapt struct group *grp; 1093286196Sbapt 1094286196Sbapt if (group == NULL || *group == '\0') { 1095286196Sbapt cnf->default_group = ""; 1096286196Sbapt return; 1097286196Sbapt } 1098286196Sbapt grp = group_from_name_or_id(group); 1099286196Sbapt cnf->default_group = newstr(grp->gr_name); 1100286196Sbapt} 1101286196Sbapt 1102286196Sbaptstatic mode_t 1103286196Sbaptvalidate_mode(char *mode) 1104286196Sbapt{ 1105286196Sbapt mode_t m; 1106286196Sbapt void *set; 1107286196Sbapt 1108286196Sbapt if ((set = setmode(mode)) == NULL) 1109286196Sbapt errx(EX_DATAERR, "invalid directory creation mode '%s'", mode); 1110286196Sbapt 1111286196Sbapt m = getmode(set, _DEF_DIRMODE); 1112286196Sbapt free(set); 1113286196Sbapt return (m); 1114286196Sbapt} 1115286196Sbapt 1116286196Sbaptstatic void 1117286196Sbaptmix_config(struct userconf *cmdcnf, struct userconf *cfg) 1118286196Sbapt{ 1119286196Sbapt 1120286196Sbapt if (cmdcnf->default_password == 0) 1121286196Sbapt cmdcnf->default_password = cfg->default_password; 1122286196Sbapt if (cmdcnf->reuse_uids == 0) 1123286196Sbapt cmdcnf->reuse_uids = cfg->reuse_uids; 1124286196Sbapt if (cmdcnf->reuse_gids == 0) 1125286196Sbapt cmdcnf->reuse_gids = cfg->reuse_gids; 1126286196Sbapt if (cmdcnf->nispasswd == NULL) 1127286196Sbapt cmdcnf->nispasswd = cfg->nispasswd; 1128286196Sbapt if (cmdcnf->dotdir == NULL) 1129286196Sbapt cmdcnf->dotdir = cfg->dotdir; 1130286196Sbapt if (cmdcnf->newmail == NULL) 1131286196Sbapt cmdcnf->newmail = cfg->newmail; 1132286196Sbapt if (cmdcnf->logfile == NULL) 1133286196Sbapt cmdcnf->logfile = cfg->logfile; 1134286196Sbapt if (cmdcnf->home == NULL) 1135286196Sbapt cmdcnf->home = cfg->home; 1136286196Sbapt if (cmdcnf->homemode == 0) 1137286196Sbapt cmdcnf->homemode = cfg->homemode; 1138286196Sbapt if (cmdcnf->shelldir == NULL) 1139286196Sbapt cmdcnf->shelldir = cfg->shelldir; 1140286196Sbapt if (cmdcnf->shells == NULL) 1141286196Sbapt cmdcnf->shells = cfg->shells; 1142286196Sbapt if (cmdcnf->shell_default == NULL) 1143286196Sbapt cmdcnf->shell_default = cfg->shell_default; 1144286196Sbapt if (cmdcnf->default_group == NULL) 1145286196Sbapt cmdcnf->default_group = cfg->default_group; 1146286196Sbapt if (cmdcnf->groups == NULL) 1147286196Sbapt cmdcnf->groups = cfg->groups; 1148286196Sbapt if (cmdcnf->default_class == NULL) 1149286196Sbapt cmdcnf->default_class = cfg->default_class; 1150286196Sbapt if (cmdcnf->min_uid == 0) 1151286196Sbapt cmdcnf->min_uid = cfg->min_uid; 1152286196Sbapt if (cmdcnf->max_uid == 0) 1153286196Sbapt cmdcnf->max_uid = cfg->max_uid; 1154286196Sbapt if (cmdcnf->min_gid == 0) 1155286196Sbapt cmdcnf->min_gid = cfg->min_gid; 1156286196Sbapt if (cmdcnf->max_gid == 0) 1157286196Sbapt cmdcnf->max_gid = cfg->max_gid; 1158286196Sbapt if (cmdcnf->expire_days == 0) 1159286196Sbapt cmdcnf->expire_days = cfg->expire_days; 1160286196Sbapt if (cmdcnf->password_days == 0) 1161286196Sbapt cmdcnf->password_days = cfg->password_days; 1162286196Sbapt} 1163286196Sbapt 1164286196Sbaptint 1165286196Sbaptpw_user_add(int argc, char **argv, char *arg1) 1166286196Sbapt{ 1167286196Sbapt struct userconf *cnf, *cmdcnf; 1168286196Sbapt struct passwd *pwd; 1169286196Sbapt struct group *grp; 1170286196Sbapt struct stat st; 1171286196Sbapt char args[] = "C:qn:u:c:d:e:p:g:G:mM:k:s:oL:i:w:h:H:Db:NPy:Y"; 1172286196Sbapt char line[_PASSWORD_LEN+1], path[MAXPATHLEN]; 1173286196Sbapt char *gecos, *homedir, *skel, *walk, *userid, *groupid, *grname; 1174286196Sbapt char *default_passwd, *name, *p; 1175286196Sbapt const char *cfg; 1176286196Sbapt login_cap_t *lc; 1177286196Sbapt FILE *pfp, *fp; 1178286196Sbapt intmax_t id = -1; 1179286196Sbapt time_t now; 1180286196Sbapt int rc, ch, fd = -1; 1181286196Sbapt size_t i; 1182286196Sbapt bool dryrun, nis, pretty, quiet, createhome, precrypted, genconf; 1183286196Sbapt 1184286196Sbapt dryrun = nis = pretty = quiet = createhome = precrypted = false; 1185286196Sbapt genconf = false; 1186286196Sbapt gecos = homedir = skel = userid = groupid = default_passwd = NULL; 1187286196Sbapt grname = name = NULL; 1188286196Sbapt 1189286196Sbapt if ((cmdcnf = calloc(1, sizeof(struct userconf))) == NULL) 1190286196Sbapt err(EXIT_FAILURE, "calloc()"); 1191286196Sbapt 1192286196Sbapt if (arg1 != NULL) { 1193286259Sed if (arg1[strspn(arg1, "0123456789")] == '\0') 1194286196Sbapt id = pw_checkid(arg1, UID_MAX); 1195286196Sbapt else 1196286196Sbapt name = arg1; 1197286196Sbapt } 1198286196Sbapt 1199286196Sbapt while ((ch = getopt(argc, argv, args)) != -1) { 1200286196Sbapt switch (ch) { 1201286196Sbapt case 'C': 1202286196Sbapt cfg = optarg; 1203286196Sbapt break; 1204286196Sbapt case 'q': 1205286196Sbapt quiet = true; 1206286196Sbapt break; 1207286196Sbapt case 'n': 1208286196Sbapt name = optarg; 1209286196Sbapt break; 1210286196Sbapt case 'u': 1211286196Sbapt userid = optarg; 1212286196Sbapt break; 1213286196Sbapt case 'c': 1214286196Sbapt gecos = pw_checkname(optarg, 1); 1215286196Sbapt break; 1216286196Sbapt case 'd': 1217286196Sbapt homedir = optarg; 1218286196Sbapt break; 1219286196Sbapt case 'e': 1220286196Sbapt now = time(NULL); 1221286196Sbapt cmdcnf->expire_days = parse_date(now, optarg); 1222286196Sbapt break; 1223286196Sbapt case 'p': 1224286196Sbapt now = time(NULL); 1225286196Sbapt cmdcnf->password_days = parse_date(now, optarg); 1226286196Sbapt break; 1227286196Sbapt case 'g': 1228286196Sbapt validate_grname(cmdcnf, optarg); 1229286196Sbapt grname = optarg; 1230286196Sbapt break; 1231286196Sbapt case 'G': 1232286196Sbapt split_groups(&cmdcnf->groups, optarg); 1233286196Sbapt break; 1234286196Sbapt case 'm': 1235286196Sbapt createhome = true; 1236286196Sbapt break; 1237286196Sbapt case 'M': 1238286196Sbapt cmdcnf->homemode = validate_mode(optarg); 1239286196Sbapt break; 1240286196Sbapt case 'k': 1241286196Sbapt walk = skel = optarg; 1242286196Sbapt if (*walk == '/') 1243286196Sbapt walk++; 1244286196Sbapt if (fstatat(conf.rootfd, walk, &st, 0) == -1) 1245286196Sbapt errx(EX_OSFILE, "skeleton `%s' does not " 1246286196Sbapt "exists", skel); 1247286196Sbapt if (!S_ISDIR(st.st_mode)) 1248286196Sbapt errx(EX_OSFILE, "skeleton `%s' is not a " 1249286196Sbapt "directory", skel); 1250286196Sbapt cmdcnf->dotdir = skel; 1251286196Sbapt break; 1252286196Sbapt case 's': 1253286196Sbapt cmdcnf->shell_default = optarg; 1254286196Sbapt break; 1255286196Sbapt case 'o': 1256286196Sbapt conf.checkduplicate = false; 1257286196Sbapt break; 1258286196Sbapt case 'L': 1259286196Sbapt cmdcnf->default_class = pw_checkname(optarg, 0); 1260286196Sbapt break; 1261286196Sbapt case 'i': 1262286196Sbapt groupid = optarg; 1263286196Sbapt break; 1264286196Sbapt case 'w': 1265286196Sbapt default_passwd = optarg; 1266286196Sbapt break; 1267286196Sbapt case 'H': 1268286196Sbapt if (fd != -1) 1269286196Sbapt errx(EX_USAGE, "'-h' and '-H' are mutually " 1270286196Sbapt "exclusive options"); 1271286196Sbapt fd = pw_checkfd(optarg); 1272286196Sbapt precrypted = true; 1273286196Sbapt if (fd == '-') 1274286196Sbapt errx(EX_USAGE, "-H expects a file descriptor"); 1275286196Sbapt break; 1276286196Sbapt case 'h': 1277286196Sbapt if (fd != -1) 1278286196Sbapt errx(EX_USAGE, "'-h' and '-H' are mutually " 1279286196Sbapt "exclusive options"); 1280286196Sbapt fd = pw_checkfd(optarg); 1281286196Sbapt break; 1282286196Sbapt case 'D': 1283286196Sbapt genconf = true; 1284286196Sbapt break; 1285286196Sbapt case 'b': 1286286196Sbapt cmdcnf->home = optarg; 1287286196Sbapt break; 1288286196Sbapt case 'N': 1289286196Sbapt dryrun = true; 1290286196Sbapt break; 1291286196Sbapt case 'P': 1292286196Sbapt pretty = true; 1293286196Sbapt break; 1294286196Sbapt case 'y': 1295286196Sbapt cmdcnf->nispasswd = optarg; 1296286196Sbapt break; 1297286196Sbapt case 'Y': 1298286196Sbapt nis = true; 1299286196Sbapt break; 1300109961Sgad } 1301109961Sgad } 1302286196Sbapt 1303286196Sbapt if (geteuid() != 0 && ! dryrun) 1304286196Sbapt errx(EX_NOPERM, "you must be root"); 1305286196Sbapt 1306286196Sbapt if (quiet) 1307286196Sbapt freopen(_PATH_DEVNULL, "w", stderr); 1308286196Sbapt 1309286196Sbapt cnf = get_userconfig(cfg); 1310286196Sbapt 1311286196Sbapt mix_config(cmdcnf, cnf); 1312286196Sbapt if (default_passwd) 1313286196Sbapt cmdcnf->default_password = boolean_val(default_passwd, 1314286196Sbapt cnf->default_password); 1315286196Sbapt if (genconf) { 1316286196Sbapt if (name != NULL) 1317286196Sbapt errx(EX_DATAERR, "can't combine `-D' with `-n name'"); 1318286196Sbapt if (userid != NULL) { 1319286196Sbapt if ((p = strtok(userid, ", \t")) != NULL) 1320286196Sbapt cmdcnf->min_uid = pw_checkid(p, UID_MAX); 1321286196Sbapt if (cmdcnf->min_uid == 0) 1322286196Sbapt cmdcnf->min_uid = 1000; 1323286196Sbapt if ((p = strtok(NULL, " ,\t")) != NULL) 1324286196Sbapt cmdcnf->max_uid = pw_checkid(p, UID_MAX); 1325286196Sbapt if (cmdcnf->max_uid == 0) 1326286196Sbapt cmdcnf->max_uid = 32000; 1327109961Sgad } 1328286196Sbapt if (groupid != NULL) { 1329286196Sbapt if ((p = strtok(groupid, ", \t")) != NULL) 1330286196Sbapt cmdcnf->min_gid = pw_checkid(p, GID_MAX); 1331286196Sbapt if (cmdcnf->min_gid == 0) 1332286196Sbapt cmdcnf->min_gid = 1000; 1333286196Sbapt if ((p = strtok(NULL, " ,\t")) != NULL) 1334286196Sbapt cmdcnf->max_gid = pw_checkid(p, GID_MAX); 1335286196Sbapt if (cmdcnf->max_gid == 0) 1336286196Sbapt cmdcnf->max_gid = 32000; 1337286196Sbapt } 1338286196Sbapt if (write_userconfig(cmdcnf, cfg)) 1339286196Sbapt return (EXIT_SUCCESS); 1340286196Sbapt err(EX_IOERR, "config update"); 1341109961Sgad } 1342286196Sbapt 1343286196Sbapt if (userid) 1344286196Sbapt id = pw_checkid(userid, UID_MAX); 1345286196Sbapt if (id < 0 && name == NULL) 1346286196Sbapt errx(EX_DATAERR, "user name or id required"); 1347286196Sbapt 1348286196Sbapt if (name == NULL) 1349286196Sbapt errx(EX_DATAERR, "login name required"); 1350286196Sbapt 1351286198Sbapt if (GETPWNAM(name) != NULL) 1352286198Sbapt errx(EX_DATAERR, "login name `%s' already exists", name); 1353286198Sbapt 1354286196Sbapt pwd = &fakeuser; 1355286196Sbapt pwd->pw_name = name; 1356286196Sbapt pwd->pw_class = cmdcnf->default_class ? cmdcnf->default_class : ""; 1357286196Sbapt pwd->pw_uid = pw_uidpolicy(cmdcnf, id); 1358286196Sbapt pwd->pw_gid = pw_gidpolicy(cnf, grname, pwd->pw_name, 1359286196Sbapt (gid_t) pwd->pw_uid, dryrun); 1360286196Sbapt pwd->pw_change = cmdcnf->password_days; 1361286196Sbapt pwd->pw_expire = cmdcnf->expire_days; 1362286196Sbapt pwd->pw_dir = pw_homepolicy(cmdcnf, homedir, pwd->pw_name); 1363286196Sbapt pwd->pw_shell = pw_shellpolicy(cmdcnf); 1364286196Sbapt lc = login_getpwclass(pwd); 1365286196Sbapt if (lc == NULL || login_setcryptfmt(lc, "sha512", NULL) == NULL) 1366286196Sbapt warn("setting crypt(3) format"); 1367286196Sbapt login_close(lc); 1368286196Sbapt pwd->pw_passwd = pw_password(cmdcnf, pwd->pw_name, dryrun); 1369286196Sbapt if (pwd->pw_uid == 0 && strcmp(pwd->pw_name, "root") != 0) 1370286196Sbapt warnx("WARNING: new account `%s' has a uid of 0 " 1371286196Sbapt "(superuser access!)", pwd->pw_name); 1372286196Sbapt if (gecos) 1373286196Sbapt pwd->pw_gecos = gecos; 1374286196Sbapt 1375286196Sbapt if (fd != -1) 1376286196Sbapt pw_set_passwd(pwd, fd, precrypted, false); 1377286196Sbapt 1378286196Sbapt if (dryrun) 1379286196Sbapt return (print_user(pwd, pretty, false)); 1380286196Sbapt 1381286196Sbapt if ((rc = addpwent(pwd)) != 0) { 1382286196Sbapt if (rc == -1) 1383286196Sbapt errx(EX_IOERR, "user '%s' already exists", 1384286196Sbapt pwd->pw_name); 1385286196Sbapt else if (rc != 0) 1386286196Sbapt err(EX_IOERR, "passwd file update"); 1387109961Sgad } 1388286196Sbapt if (nis && cmdcnf->nispasswd && *cmdcnf->nispasswd == '/') { 1389286196Sbapt printf("%s\n", cmdcnf->nispasswd); 1390286196Sbapt rc = addnispwent(cmdcnf->nispasswd, pwd); 1391286196Sbapt if (rc == -1) 1392286202Sbapt warnx("User '%s' already exists in NIS passwd", 1393286202Sbapt pwd->pw_name); 1394286196Sbapt else if (rc != 0) 1395286196Sbapt warn("NIS passwd update"); 1396286196Sbapt /* NOTE: we treat NIS-only update errors as non-fatal */ 1397286196Sbapt } 1398284110Sbapt 1399286196Sbapt if (cmdcnf->groups != NULL) { 1400286196Sbapt for (i = 0; i < cmdcnf->groups->sl_cur; i++) { 1401286196Sbapt grp = GETGRNAM(cmdcnf->groups->sl_str[i]); 1402286196Sbapt grp = gr_add(grp, pwd->pw_name); 1403286196Sbapt /* 1404286196Sbapt * grp can only be NULL in 2 cases: 1405286196Sbapt * - the new member is already a member 1406286196Sbapt * - a problem with memory occurs 1407286196Sbapt * in both cases we want to skip now. 1408286196Sbapt */ 1409286196Sbapt if (grp == NULL) 1410286196Sbapt continue; 1411286196Sbapt chggrent(grp->gr_name, grp); 1412286196Sbapt free(grp); 1413286196Sbapt } 1414286196Sbapt } 141520253Sjoerg 1416286196Sbapt pwd = GETPWNAM(name); 1417286196Sbapt if (pwd == NULL) 1418286196Sbapt errx(EX_NOUSER, "user '%s' disappeared during update", name); 141920253Sjoerg 1420286196Sbapt grp = GETGRGID(pwd->pw_gid); 1421286196Sbapt pw_log(cnf, M_ADD, W_USER, "%s(%ju):%s(%ju):%s:%s:%s", 1422286196Sbapt pwd->pw_name, (uintmax_t)pwd->pw_uid, 1423286202Sbapt grp ? grp->gr_name : "unknown", 1424286202Sbapt (uintmax_t)(grp ? grp->gr_gid : (uid_t)-1), 1425286196Sbapt pwd->pw_gecos, pwd->pw_dir, pwd->pw_shell); 142620253Sjoerg 1427286196Sbapt /* 1428286196Sbapt * let's touch and chown the user's mail file. This is not 1429286196Sbapt * strictly necessary under BSD with a 0755 maildir but it also 1430286196Sbapt * doesn't hurt anything to create the empty mailfile 1431286196Sbapt */ 1432286196Sbapt if (PWALTDIR() != PWF_ALT) { 1433286196Sbapt snprintf(path, sizeof(path), "%s/%s", _PATH_MAILDIR, 1434286196Sbapt pwd->pw_name); 1435286196Sbapt /* Preserve contents & mtime */ 1436286196Sbapt close(openat(conf.rootfd, path +1, O_RDWR | O_CREAT, 0600)); 1437286196Sbapt fchownat(conf.rootfd, path + 1, pwd->pw_uid, pwd->pw_gid, 1438286196Sbapt AT_SYMLINK_NOFOLLOW); 1439286196Sbapt } 144020253Sjoerg 1441286196Sbapt /* 1442286196Sbapt * Let's create and populate the user's home directory. Note 1443286196Sbapt * that this also `works' for editing users if -m is used, but 1444286196Sbapt * existing files will *not* be overwritten. 1445286196Sbapt */ 1446286196Sbapt if (PWALTDIR() != PWF_ALT && createhome && pwd->pw_dir && 1447286196Sbapt *pwd->pw_dir == '/' && pwd->pw_dir[1]) 1448286196Sbapt create_and_populate_homedir(cmdcnf, pwd, cmdcnf->dotdir, 1449286196Sbapt cmdcnf->homemode, false); 145020253Sjoerg 1451286196Sbapt if (!PWALTDIR() && cmdcnf->newmail && *cmdcnf->newmail && 1452286196Sbapt (fp = fopen(cnf->newmail, "r")) != NULL) { 1453286196Sbapt if ((pfp = popen(_PATH_SENDMAIL " -t", "w")) == NULL) 1454286196Sbapt warn("sendmail"); 1455286196Sbapt else { 1456286196Sbapt fprintf(pfp, "From: root\n" "To: %s\n" 1457286196Sbapt "Subject: Welcome!\n\n", pwd->pw_name); 1458286196Sbapt while (fgets(line, sizeof(line), fp) != NULL) { 1459286196Sbapt /* Do substitutions? */ 1460286196Sbapt fputs(line, pfp); 146120253Sjoerg } 1462286196Sbapt pclose(pfp); 1463286196Sbapt pw_log(cnf, M_ADD, W_USER, "%s(%ju) new user mail sent", 1464286196Sbapt pwd->pw_name, (uintmax_t)pwd->pw_uid); 146520253Sjoerg } 1466286196Sbapt fclose(fp); 146720253Sjoerg } 1468286196Sbapt 1469286196Sbapt if (nis && nis_update() == 0) 1470286196Sbapt pw_log(cnf, M_ADD, W_USER, "NIS maps updated"); 1471286196Sbapt 1472286196Sbapt return (EXIT_SUCCESS); 147320253Sjoerg} 147420747Sdavidn 1475286196Sbaptint 1476286196Sbaptpw_user_mod(int argc, char **argv, char *arg1) 147720747Sdavidn{ 1478286196Sbapt struct userconf *cnf; 1479286196Sbapt struct passwd *pwd; 1480286196Sbapt struct group *grp; 1481286196Sbapt StringList *groups = NULL; 1482286196Sbapt char args[] = "C:qn:u:c:d:e:p:g:G:mM:l:k:s:w:L:h:H:NPYy:"; 1483286196Sbapt const char *cfg; 1484286196Sbapt char *gecos, *homedir, *grname, *name, *newname, *walk, *skel, *shell; 1485286196Sbapt char *passwd, *class, *nispasswd; 1486286196Sbapt login_cap_t *lc; 1487286196Sbapt struct stat st; 1488286196Sbapt intmax_t id = -1; 1489286196Sbapt int ch, fd = -1; 1490286196Sbapt size_t i, j; 1491286196Sbapt bool quiet, createhome, pretty, dryrun, nis, edited, docreatehome; 1492286218Sbapt bool precrypted; 1493286196Sbapt mode_t homemode = 0; 1494286218Sbapt time_t expire_days, password_days, now; 149520747Sdavidn 1496286196Sbapt expire_days = password_days = -1; 1497286196Sbapt gecos = homedir = grname = name = newname = skel = shell =NULL; 1498286196Sbapt passwd = NULL; 1499286196Sbapt class = nispasswd = NULL; 1500286196Sbapt quiet = createhome = pretty = dryrun = nis = precrypted = false; 1501286196Sbapt edited = docreatehome = false; 150220747Sdavidn 1503286196Sbapt if (arg1 != NULL) { 1504286259Sed if (arg1[strspn(arg1, "0123456789")] == '\0') 1505286196Sbapt id = pw_checkid(arg1, UID_MAX); 1506286196Sbapt else 1507286196Sbapt name = arg1; 1508286196Sbapt } 1509286196Sbapt 1510286196Sbapt while ((ch = getopt(argc, argv, args)) != -1) { 1511286196Sbapt switch (ch) { 1512286196Sbapt case 'C': 1513286196Sbapt cfg = optarg; 1514285433Sbapt break; 1515286196Sbapt case 'q': 1516286196Sbapt quiet = true; 1517286196Sbapt break; 1518286196Sbapt case 'n': 1519286196Sbapt name = optarg; 1520286196Sbapt break; 1521286196Sbapt case 'u': 1522286196Sbapt id = pw_checkid(optarg, UID_MAX); 1523286196Sbapt break; 1524286196Sbapt case 'c': 1525286196Sbapt gecos = pw_checkname(optarg, 1); 1526286196Sbapt break; 1527286196Sbapt case 'd': 1528286196Sbapt homedir = optarg; 1529286196Sbapt break; 1530286196Sbapt case 'e': 1531286196Sbapt now = time(NULL); 1532286196Sbapt expire_days = parse_date(now, optarg); 1533286196Sbapt break; 1534286196Sbapt case 'p': 1535286196Sbapt now = time(NULL); 1536286196Sbapt password_days = parse_date(now, optarg); 1537286196Sbapt break; 1538286196Sbapt case 'g': 1539286196Sbapt group_from_name_or_id(optarg); 1540286196Sbapt grname = optarg; 1541286196Sbapt break; 1542286196Sbapt case 'G': 1543286196Sbapt split_groups(&groups, optarg); 1544286196Sbapt break; 1545286196Sbapt case 'm': 1546286196Sbapt createhome = true; 1547286196Sbapt break; 1548286196Sbapt case 'M': 1549286196Sbapt homemode = validate_mode(optarg); 1550286196Sbapt break; 1551286196Sbapt case 'l': 1552286196Sbapt newname = optarg; 1553286196Sbapt break; 1554286196Sbapt case 'k': 1555286196Sbapt walk = skel = optarg; 1556286196Sbapt if (*walk == '/') 1557286196Sbapt walk++; 1558286196Sbapt if (fstatat(conf.rootfd, walk, &st, 0) == -1) 1559286196Sbapt errx(EX_OSFILE, "skeleton `%s' does not " 1560286196Sbapt "exists", skel); 1561286196Sbapt if (!S_ISDIR(st.st_mode)) 1562286196Sbapt errx(EX_OSFILE, "skeleton `%s' is not a " 1563286196Sbapt "directory", skel); 1564286196Sbapt break; 1565286196Sbapt case 's': 1566286196Sbapt shell = optarg; 1567286196Sbapt break; 1568286196Sbapt case 'w': 1569286196Sbapt passwd = optarg; 1570286196Sbapt break; 1571286196Sbapt case 'L': 1572286196Sbapt class = pw_checkname(optarg, 0); 1573286196Sbapt break; 1574286196Sbapt case 'H': 1575286196Sbapt if (fd != -1) 1576286196Sbapt errx(EX_USAGE, "'-h' and '-H' are mutually " 1577286196Sbapt "exclusive options"); 1578286196Sbapt fd = pw_checkfd(optarg); 1579286196Sbapt precrypted = true; 1580286196Sbapt if (fd == '-') 1581286196Sbapt errx(EX_USAGE, "-H expects a file descriptor"); 1582286196Sbapt break; 1583286196Sbapt case 'h': 1584286196Sbapt if (fd != -1) 1585286196Sbapt errx(EX_USAGE, "'-h' and '-H' are mutually " 1586286196Sbapt "exclusive options"); 1587286196Sbapt fd = pw_checkfd(optarg); 1588286196Sbapt break; 1589286196Sbapt case 'N': 1590286196Sbapt dryrun = true; 1591286196Sbapt break; 1592286196Sbapt case 'P': 1593286196Sbapt pretty = true; 1594286196Sbapt break; 1595286196Sbapt case 'y': 1596286196Sbapt nispasswd = optarg; 1597286196Sbapt break; 1598286196Sbapt case 'Y': 1599286196Sbapt nis = true; 1600286196Sbapt break; 160120747Sdavidn } 160220747Sdavidn } 1603286196Sbapt 1604286196Sbapt if (geteuid() != 0 && ! dryrun) 1605286196Sbapt errx(EX_NOPERM, "you must be root"); 1606286196Sbapt 1607286196Sbapt if (quiet) 1608286196Sbapt freopen(_PATH_DEVNULL, "w", stderr); 1609286196Sbapt 1610286196Sbapt cnf = get_userconfig(cfg); 1611286196Sbapt 1612286196Sbapt if (id < 0 && name == NULL) 1613286196Sbapt errx(EX_DATAERR, "username or id required"); 1614286196Sbapt 1615286196Sbapt pwd = (name != NULL) ? GETPWNAM(pw_checkname(name, 0)) : GETPWUID(id); 1616286196Sbapt if (pwd == NULL) { 1617286196Sbapt if (name == NULL) 1618286196Sbapt errx(EX_NOUSER, "no such uid `%ju'", 1619286196Sbapt (uintmax_t) id); 1620286196Sbapt errx(EX_NOUSER, "no such user `%s'", name); 1621286196Sbapt } 1622286196Sbapt 1623286196Sbapt if (name == NULL) 1624286196Sbapt name = pwd->pw_name; 1625286196Sbapt 1626286196Sbapt if (nis && nispasswd == NULL) 1627286196Sbapt nispasswd = cnf->nispasswd; 1628286196Sbapt 1629286196Sbapt if (PWF._altdir == PWF_REGULAR && 1630286196Sbapt ((pwd->pw_fields & _PWF_SOURCE) != _PWF_FILES)) { 1631286196Sbapt if ((pwd->pw_fields & _PWF_SOURCE) == _PWF_NIS) { 1632286196Sbapt if (!nis && nispasswd && *nispasswd != '/') 1633286196Sbapt errx(EX_NOUSER, "Cannot modify NIS user `%s'", 1634286196Sbapt name); 1635286196Sbapt } else { 1636286196Sbapt errx(EX_NOUSER, "Cannot modify non local user `%s'", 1637286196Sbapt name); 1638286196Sbapt } 1639286196Sbapt } 1640286196Sbapt 1641286196Sbapt if (newname) { 1642286196Sbapt if (strcmp(pwd->pw_name, "root") == 0) 1643286196Sbapt errx(EX_DATAERR, "can't rename `root' account"); 1644286196Sbapt if (strcmp(pwd->pw_name, newname) != 0) { 1645286196Sbapt pwd->pw_name = pw_checkname(newname, 0); 1646286196Sbapt edited = true; 1647286196Sbapt } 1648286196Sbapt } 1649286196Sbapt 1650286196Sbapt if (id > 0 && pwd->pw_uid != id) { 1651286196Sbapt pwd->pw_uid = id; 1652286196Sbapt edited = true; 1653286196Sbapt if (pwd->pw_uid != 0 && strcmp(pwd->pw_name, "root") == 0) 1654286196Sbapt errx(EX_DATAERR, "can't change uid of `root' account"); 1655286196Sbapt if (pwd->pw_uid == 0 && strcmp(pwd->pw_name, "root") != 0) 1656286202Sbapt warnx("WARNING: account `%s' will have a uid of 0 " 1657286202Sbapt "(superuser access!)", pwd->pw_name); 1658286196Sbapt } 1659286196Sbapt 1660286196Sbapt if (grname && pwd->pw_uid != 0) { 1661286196Sbapt grp = GETGRNAM(grname); 1662286196Sbapt if (grp == NULL) 1663286196Sbapt grp = GETGRGID(pw_checkid(grname, GID_MAX)); 1664286196Sbapt if (grp->gr_gid != pwd->pw_gid) { 1665286196Sbapt pwd->pw_gid = grp->gr_gid; 1666286196Sbapt edited = true; 1667286196Sbapt } 1668286196Sbapt } 1669286196Sbapt 1670286196Sbapt if (password_days >= 0 && pwd->pw_change != password_days) { 1671286196Sbapt pwd->pw_change = password_days; 1672286196Sbapt edited = true; 1673286196Sbapt } 1674286196Sbapt 1675286196Sbapt if (expire_days >= 0 && pwd->pw_expire != expire_days) { 1676286196Sbapt pwd->pw_expire = expire_days; 1677286196Sbapt edited = true; 1678286196Sbapt } 1679286196Sbapt 1680286196Sbapt if (shell) { 1681286196Sbapt shell = shell_path(cnf->shelldir, cnf->shells, shell); 1682286196Sbapt if (shell == NULL) 1683286196Sbapt shell = ""; 1684286196Sbapt if (strcmp(shell, pwd->pw_shell) != 0) { 1685286196Sbapt pwd->pw_shell = shell; 1686286196Sbapt edited = true; 1687286196Sbapt } 1688286196Sbapt } 1689286196Sbapt 1690286196Sbapt if (class && strcmp(pwd->pw_class, class) != 0) { 1691286196Sbapt pwd->pw_class = class; 1692286196Sbapt edited = true; 1693286196Sbapt } 1694286196Sbapt 1695286196Sbapt if (homedir && strcmp(pwd->pw_dir, homedir) != 0) { 1696286196Sbapt pwd->pw_dir = homedir; 1697286196Sbapt if (fstatat(conf.rootfd, pwd->pw_dir, &st, 0) == -1) { 1698286196Sbapt if (!createhome) 1699286196Sbapt warnx("WARNING: home `%s' does not exist", 1700286196Sbapt pwd->pw_dir); 1701286196Sbapt else 1702286196Sbapt docreatehome = true; 1703286196Sbapt } else if (!S_ISDIR(st.st_mode)) { 1704286196Sbapt warnx("WARNING: home `%s' is not a directory", 1705286196Sbapt pwd->pw_dir); 1706286196Sbapt } 1707286196Sbapt } 1708286196Sbapt 1709286196Sbapt if (passwd && conf.fd == -1) { 1710286196Sbapt lc = login_getpwclass(pwd); 1711286196Sbapt if (lc == NULL || login_setcryptfmt(lc, "sha512", NULL) == NULL) 1712286196Sbapt warn("setting crypt(3) format"); 1713286196Sbapt login_close(lc); 1714286775Sbapt cnf->default_password = boolean_val(passwd, 1715286775Sbapt cnf->default_password); 1716286196Sbapt pwd->pw_passwd = pw_password(cnf, pwd->pw_name, dryrun); 1717286196Sbapt edited = true; 1718286196Sbapt } 1719286196Sbapt 1720286196Sbapt if (gecos && strcmp(pwd->pw_gecos, gecos) != 0) { 1721286196Sbapt pwd->pw_gecos = gecos; 1722286196Sbapt edited = true; 1723286196Sbapt } 1724286196Sbapt 1725286196Sbapt if (fd != -1) 1726286196Sbapt edited = pw_set_passwd(pwd, fd, precrypted, true); 1727286196Sbapt 1728286196Sbapt if (dryrun) 1729286196Sbapt return (print_user(pwd, pretty, false)); 1730286196Sbapt 1731286196Sbapt if (edited) /* Only updated this if required */ 1732286196Sbapt perform_chgpwent(name, pwd, nis ? nispasswd : NULL); 1733286196Sbapt /* Now perform the needed changes concern groups */ 1734286196Sbapt if (groups != NULL) { 1735286196Sbapt /* Delete User from groups using old name */ 1736286196Sbapt SETGRENT(); 1737286196Sbapt while ((grp = GETGRENT()) != NULL) { 1738286196Sbapt if (grp->gr_mem == NULL) 1739286196Sbapt continue; 1740286196Sbapt for (i = 0; grp->gr_mem[i] != NULL; i++) { 1741286196Sbapt if (strcmp(grp->gr_mem[i] , name) != 0) 1742286196Sbapt continue; 1743286196Sbapt for (j = i; grp->gr_mem[j] != NULL ; j++) 1744286196Sbapt grp->gr_mem[j] = grp->gr_mem[j+1]; 1745286196Sbapt chggrent(grp->gr_name, grp); 1746286196Sbapt break; 1747286196Sbapt } 1748286196Sbapt } 1749286196Sbapt ENDGRENT(); 1750286196Sbapt /* Add the user to the needed groups */ 1751286196Sbapt for (i = 0; i < groups->sl_cur; i++) { 1752286196Sbapt grp = GETGRNAM(groups->sl_str[i]); 1753286196Sbapt grp = gr_add(grp, pwd->pw_name); 1754286196Sbapt if (grp == NULL) 1755286196Sbapt continue; 1756286196Sbapt chggrent(grp->gr_name, grp); 1757286196Sbapt free(grp); 1758286196Sbapt } 1759286196Sbapt } 1760286196Sbapt /* In case of rename we need to walk over the different groups */ 1761286196Sbapt if (newname) { 1762286196Sbapt SETGRENT(); 1763286196Sbapt while ((grp = GETGRENT()) != NULL) { 1764286196Sbapt if (grp->gr_mem == NULL) 1765286196Sbapt continue; 1766286196Sbapt for (i = 0; grp->gr_mem[i] != NULL; i++) { 1767286196Sbapt if (strcmp(grp->gr_mem[i], name) != 0) 1768286196Sbapt continue; 1769286196Sbapt grp->gr_mem[i] = newname; 1770286196Sbapt chggrent(grp->gr_name, grp); 1771286196Sbapt break; 1772286196Sbapt } 1773286196Sbapt } 1774286196Sbapt } 1775286196Sbapt 1776286196Sbapt /* go get a current version of pwd */ 1777286196Sbapt if (newname) 1778286196Sbapt name = newname; 1779286196Sbapt pwd = GETPWNAM(name); 1780286196Sbapt if (pwd == NULL) 1781286196Sbapt errx(EX_NOUSER, "user '%s' disappeared during update", name); 1782286196Sbapt grp = GETGRGID(pwd->pw_gid); 1783286196Sbapt pw_log(cnf, M_UPDATE, W_USER, "%s(%ju):%s(%ju):%s:%s:%s", 1784286196Sbapt pwd->pw_name, (uintmax_t)pwd->pw_uid, 1785286196Sbapt grp ? grp->gr_name : "unknown", 1786286196Sbapt (uintmax_t)(grp ? grp->gr_gid : (uid_t)-1), 1787286196Sbapt pwd->pw_gecos, pwd->pw_dir, pwd->pw_shell); 1788286196Sbapt 1789285433Sbapt /* 1790286196Sbapt * Let's create and populate the user's home directory. Note 1791286196Sbapt * that this also `works' for editing users if -m is used, but 1792286196Sbapt * existing files will *not* be overwritten. 1793285433Sbapt */ 1794286196Sbapt if (PWALTDIR() != PWF_ALT && docreatehome && pwd->pw_dir && 1795286196Sbapt *pwd->pw_dir == '/' && pwd->pw_dir[1]) { 1796286196Sbapt if (!skel) 1797286196Sbapt skel = cnf->dotdir; 1798286196Sbapt if (homemode == 0) 1799286196Sbapt homemode = cnf->homemode; 1800286196Sbapt create_and_populate_homedir(cnf, pwd, skel, homemode, true); 1801286196Sbapt } 1802286196Sbapt 1803286196Sbapt if (nis && nis_update() == 0) 1804286196Sbapt pw_log(cnf, M_UPDATE, W_USER, "NIS maps updated"); 1805286196Sbapt 1806286196Sbapt return (EXIT_SUCCESS); 180720747Sdavidn} 1808