pw_user.c revision 316347
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: stable/11/usr.sbin/pw/pw_user.c 316347 2017-04-01 09:27:00Z bapt $"; 3130259Scharnier#endif /* not lint */ 3230259Scharnier 33286201Sbapt#include <sys/param.h> 34286201Sbapt#include <sys/types.h> 35286201Sbapt 3630259Scharnier#include <ctype.h> 37286201Sbapt#include <dirent.h> 3830259Scharnier#include <err.h> 39286982Sbapt#include <errno.h> 4020253Sjoerg#include <fcntl.h> 41286201Sbapt#include <grp.h> 42286201Sbapt#include <pwd.h> 43286201Sbapt#include <libutil.h> 44286201Sbapt#include <login_cap.h> 4530259Scharnier#include <paths.h> 46286201Sbapt#include <string.h> 47286201Sbapt#include <sysexits.h> 4820253Sjoerg#include <termios.h> 49286201Sbapt#include <unistd.h> 50286201Sbapt 5120253Sjoerg#include "pw.h" 5220253Sjoerg#include "bitmap.h" 53286201Sbapt#include "psdate.h" 5420253Sjoerg 5523318Sache#define LOGNAMESIZE (MAXLOGNAME-1) 5622394Sdavidn 5752512Sdavidnstatic char locked_str[] = "*LOCKED*"; 5824214Sache 59286196Sbaptstatic struct passwd fakeuser = { 60286196Sbapt "nouser", 61286196Sbapt "*", 62286196Sbapt -1, 63286196Sbapt -1, 64286196Sbapt 0, 65286196Sbapt "", 66286196Sbapt "User &", 67286196Sbapt "/nonexistent", 68286196Sbapt "/bin/sh", 69286196Sbapt 0, 70286196Sbapt 0 71286196Sbapt}; 7220253Sjoerg 73286196Sbaptstatic int print_user(struct passwd *pwd, bool pretty, bool v7); 74286196Sbaptstatic uid_t pw_uidpolicy(struct userconf *cnf, intmax_t id); 75286196Sbaptstatic uid_t pw_gidpolicy(struct userconf *cnf, char *grname, char *nam, 76286196Sbapt gid_t prefer, bool dryrun); 77286196Sbaptstatic char *pw_homepolicy(struct userconf * cnf, char *homedir, 78286196Sbapt const char *user); 79286196Sbaptstatic char *pw_shellpolicy(struct userconf * cnf); 80286196Sbaptstatic char *pw_password(struct userconf * cnf, char const * user, 81286196Sbapt bool dryrun); 82286196Sbaptstatic char *shell_path(char const * path, char *shells[], char *sh); 83286196Sbaptstatic void rmat(uid_t uid); 84286196Sbaptstatic void rmopie(char const * name); 85286196Sbapt 86283961Sbaptstatic void 87286982Sbaptmkdir_home_parents(int dfd, const char *dir) 88286982Sbapt{ 89286982Sbapt struct stat st; 90286982Sbapt char *dirs, *tmp; 91286982Sbapt 92286982Sbapt if (*dir != '/') 93286982Sbapt errx(EX_DATAERR, "invalid base directory for home '%s'", dir); 94286982Sbapt 95286982Sbapt dir++; 96286982Sbapt 97286982Sbapt if (fstatat(dfd, dir, &st, 0) != -1) { 98286982Sbapt if (S_ISDIR(st.st_mode)) 99286982Sbapt return; 100286982Sbapt errx(EX_OSFILE, "root home `/%s' is not a directory", dir); 101286982Sbapt } 102286982Sbapt 103286982Sbapt dirs = strdup(dir); 104286982Sbapt if (dirs == NULL) 105286982Sbapt errx(EX_UNAVAILABLE, "out of memory"); 106286982Sbapt 107286982Sbapt tmp = strrchr(dirs, '/'); 108290153Sbdrewery if (tmp == NULL) { 109290153Sbdrewery free(dirs); 110286982Sbapt return; 111290153Sbdrewery } 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); 126286986Sbapt symlinkat(tmp, dfd, dirs); 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; 275291657Sbapt uid_t id = (uid_t)-1; 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 283291657Sbapt name = arg1; 284291657Sbapt if (arg1[strspn(name, "0123456789")] == '\0') 285291657Sbapt id = pw_checkid(name, UID_MAX); 286286196Sbapt 287291657Sbapt pwd = GETPWNAM(pw_checkname(name, 0)); 288291657Sbapt if (pwd == NULL && id != (uid_t)-1) { 289291657Sbapt pwd = GETPWUID(id); 290291657Sbapt if (pwd != NULL) 291291657Sbapt name = pwd->pw_name; 292291657Sbapt } 293285405Sbapt if (pwd == NULL) { 294291657Sbapt if (id == (uid_t)-1) 295291657Sbapt errx(EX_NOUSER, "no such name or uid `%ju'", (uintmax_t) id); 296285405Sbapt errx(EX_NOUSER, "no such user `%s'", name); 297285405Sbapt } 298285405Sbapt 299285405Sbapt if (name == NULL) 300285405Sbapt name = pwd->pw_name; 301285405Sbapt 302285405Sbapt if (strncmp(pwd->pw_passwd, locked_str, sizeof(locked_str) -1) == 0) 303285405Sbapt locked = true; 304285405Sbapt if (mode == M_LOCK && locked) 305285405Sbapt errx(EX_DATAERR, "user '%s' is already locked", pwd->pw_name); 306285405Sbapt if (mode == M_UNLOCK && !locked) 307285405Sbapt errx(EX_DATAERR, "user '%s' is not locked", pwd->pw_name); 308285405Sbapt 309285405Sbapt if (mode == M_LOCK) { 310285405Sbapt asprintf(&passtmp, "%s%s", locked_str, pwd->pw_passwd); 311285405Sbapt if (passtmp == NULL) /* disaster */ 312285405Sbapt errx(EX_UNAVAILABLE, "out of memory"); 313285405Sbapt pwd->pw_passwd = passtmp; 314285405Sbapt } else { 315285405Sbapt pwd->pw_passwd += sizeof(locked_str)-1; 316285405Sbapt } 317285405Sbapt 318286196Sbapt perform_chgpwent(name, pwd, NULL); 319285405Sbapt free(passtmp); 320285405Sbapt 321285405Sbapt return (EXIT_SUCCESS); 322285405Sbapt} 323285405Sbapt 324286196Sbaptstatic uid_t 325286196Sbaptpw_uidpolicy(struct userconf * cnf, intmax_t id) 32620253Sjoerg{ 327286196Sbapt struct passwd *pwd; 328286196Sbapt struct bitmap bm; 329286196Sbapt uid_t uid = (uid_t) - 1; 33020253Sjoerg 33120267Sjoerg /* 332286196Sbapt * Check the given uid, if any 33320253Sjoerg */ 334286196Sbapt if (id >= 0) { 335286196Sbapt uid = (uid_t) id; 33620253Sjoerg 337286196Sbapt if ((pwd = GETPWUID(uid)) != NULL && conf.checkduplicate) 338286196Sbapt errx(EX_DATAERR, "uid `%ju' has already been allocated", 339286196Sbapt (uintmax_t)pwd->pw_uid); 340286196Sbapt return (uid); 34120253Sjoerg } 34221052Sdavidn /* 343286196Sbapt * We need to allocate the next available uid under one of 344286196Sbapt * two policies a) Grab the first unused uid b) Grab the 345286196Sbapt * highest possible unused uid 34621052Sdavidn */ 347286196Sbapt if (cnf->min_uid >= cnf->max_uid) { /* Sanity 348286196Sbapt * claus^H^H^H^Hheck */ 349286196Sbapt cnf->min_uid = 1000; 350286196Sbapt cnf->max_uid = 32000; 35121052Sdavidn } 352286196Sbapt bm = bm_alloc(cnf->max_uid - cnf->min_uid + 1); 35321052Sdavidn 35420253Sjoerg /* 355286196Sbapt * Now, let's fill the bitmap from the password file 35620253Sjoerg */ 357286196Sbapt SETPWENT(); 358286196Sbapt while ((pwd = GETPWENT()) != NULL) 359286196Sbapt if (pwd->pw_uid >= (uid_t) cnf->min_uid && pwd->pw_uid <= (uid_t) cnf->max_uid) 360286196Sbapt bm_setbit(&bm, pwd->pw_uid - cnf->min_uid); 361286196Sbapt ENDPWENT(); 36252527Sdavidn 36320253Sjoerg /* 364286196Sbapt * Then apply the policy, with fallback to reuse if necessary 36520253Sjoerg */ 366286196Sbapt if (cnf->reuse_uids || (uid = (uid_t) (bm_lastset(&bm) + cnf->min_uid + 1)) > cnf->max_uid) 367286196Sbapt uid = (uid_t) (bm_firstunset(&bm) + cnf->min_uid); 36820253Sjoerg 36920267Sjoerg /* 370286196Sbapt * Another sanity check 37120267Sjoerg */ 372286196Sbapt if (uid < cnf->min_uid || uid > cnf->max_uid) 373286196Sbapt errx(EX_SOFTWARE, "unable to allocate a new uid - range fully used"); 374286196Sbapt bm_dealloc(&bm); 375286196Sbapt return (uid); 37620253Sjoerg} 37720253Sjoerg 378286196Sbaptstatic uid_t 379286196Sbaptpw_gidpolicy(struct userconf *cnf, char *grname, char *nam, gid_t prefer, bool dryrun) 38020253Sjoerg{ 38120253Sjoerg struct group *grp; 38220253Sjoerg gid_t gid = (uid_t) - 1; 38320253Sjoerg 38420253Sjoerg /* 38520253Sjoerg * Check the given gid, if any 38620253Sjoerg */ 38744229Sdavidn SETGRENT(); 388286196Sbapt if (grname) { 389286196Sbapt if ((grp = GETGRNAM(grname)) == NULL) { 390286196Sbapt gid = pw_checkid(grname, GID_MAX); 391286196Sbapt grp = GETGRGID(gid); 39220253Sjoerg } 39320253Sjoerg gid = grp->gr_gid; 394262865Sjulian } else if ((grp = GETGRNAM(nam)) != NULL && 395262865Sjulian (grp->gr_mem == NULL || grp->gr_mem[0] == NULL)) { 39620267Sjoerg gid = grp->gr_gid; /* Already created? Use it anyway... */ 39720253Sjoerg } else { 398286196Sbapt intmax_t grid = -1; 39920253Sjoerg 40020253Sjoerg /* 40120253Sjoerg * We need to auto-create a group with the user's name. We 40220253Sjoerg * can send all the appropriate output to our sister routine 40320253Sjoerg * bit first see if we can create a group with gid==uid so we 40420253Sjoerg * can keep the user and group ids in sync. We purposely do 40520253Sjoerg * NOT check the gid range if we can force the sync. If the 40620253Sjoerg * user's name dups an existing group, then the group add 40720253Sjoerg * function will happily handle that case for us and exit. 40820253Sjoerg */ 409285414Sbapt if (GETGRGID(prefer) == NULL) 410285414Sbapt grid = prefer; 411286196Sbapt if (dryrun) { 412285395Sbapt gid = pw_groupnext(cnf, true); 413285395Sbapt } else { 414286196Sbapt if (grid == -1) 415286196Sbapt grid = pw_groupnext(cnf, true); 416286196Sbapt groupadd(cnf, nam, grid, NULL, -1, false, false, false); 41744229Sdavidn if ((grp = GETGRNAM(nam)) != NULL) 41820267Sjoerg gid = grp->gr_gid; 41920267Sjoerg } 42020253Sjoerg } 42144229Sdavidn ENDGRENT(); 422286196Sbapt return (gid); 42320253Sjoerg} 42420253Sjoerg 425286196Sbaptstatic char * 426286196Sbaptpw_homepolicy(struct userconf * cnf, char *homedir, const char *user) 42720253Sjoerg{ 428282699Sbapt static char home[128]; 42920253Sjoerg 430286196Sbapt if (homedir) 431286196Sbapt return (homedir); 43220253Sjoerg 433282699Sbapt if (cnf->home == NULL || *cnf->home == '\0') 434282699Sbapt errx(EX_CONFIG, "no base home directory set"); 435282699Sbapt snprintf(home, sizeof(home), "%s/%s", cnf->home, user); 436282699Sbapt 437282699Sbapt return (home); 43820253Sjoerg} 43920253Sjoerg 440286196Sbaptstatic char * 44120253Sjoergshell_path(char const * path, char *shells[], char *sh) 44220253Sjoerg{ 44320253Sjoerg if (sh != NULL && (*sh == '/' || *sh == '\0')) 44420253Sjoerg return sh; /* specified full path or forced none */ 44520253Sjoerg else { 44620253Sjoerg char *p; 44720253Sjoerg char paths[_UC_MAXLINE]; 44820253Sjoerg 44920253Sjoerg /* 45020253Sjoerg * We need to search paths 45120253Sjoerg */ 452130633Srobert strlcpy(paths, path, sizeof(paths)); 45320253Sjoerg for (p = strtok(paths, ": \t\r\n"); p != NULL; p = strtok(NULL, ": \t\r\n")) { 45420253Sjoerg int i; 45520253Sjoerg static char shellpath[256]; 45620253Sjoerg 45720253Sjoerg if (sh != NULL) { 458282700Sbapt snprintf(shellpath, sizeof(shellpath), "%s/%s", p, sh); 45920253Sjoerg if (access(shellpath, X_OK) == 0) 46020253Sjoerg return shellpath; 46120253Sjoerg } else 46220253Sjoerg for (i = 0; i < _UC_MAXSHELLS && shells[i] != NULL; i++) { 463282700Sbapt snprintf(shellpath, sizeof(shellpath), "%s/%s", p, shells[i]); 46420253Sjoerg if (access(shellpath, X_OK) == 0) 46520253Sjoerg return shellpath; 46620253Sjoerg } 46720253Sjoerg } 46820253Sjoerg if (sh == NULL) 46930259Scharnier errx(EX_OSFILE, "can't find shell `%s' in shell paths", sh); 47030259Scharnier errx(EX_CONFIG, "no default shell available or defined"); 47120253Sjoerg return NULL; 47220253Sjoerg } 47320253Sjoerg} 47420253Sjoerg 475286196Sbaptstatic char * 476286196Sbaptpw_shellpolicy(struct userconf * cnf) 47720253Sjoerg{ 47820253Sjoerg 479286196Sbapt return shell_path(cnf->shelldir, cnf->shells, cnf->shell_default); 48020253Sjoerg} 48120253Sjoerg 482179365Santoine#define SALTSIZE 32 48320253Sjoerg 484179365Santoinestatic char const chars[] = "0123456789abcdefghijklmnopqrstuvwxyzABCDEFGHIJKLMNOPQRSTUVWXYZ./"; 485179365Santoine 486286196Sbaptchar * 48720253Sjoergpw_pwcrypt(char *password) 48820253Sjoerg{ 48920253Sjoerg int i; 490179365Santoine char salt[SALTSIZE + 1]; 491231994Skevlo char *cryptpw; 49220253Sjoerg static char buf[256]; 49320253Sjoerg 49420253Sjoerg /* 49520253Sjoerg * Calculate a salt value 49620253Sjoerg */ 497179365Santoine for (i = 0; i < SALTSIZE; i++) 498181785Sache salt[i] = chars[arc4random_uniform(sizeof(chars) - 1)]; 499179365Santoine salt[SALTSIZE] = '\0'; 50020253Sjoerg 501231994Skevlo cryptpw = crypt(password, salt); 502231994Skevlo if (cryptpw == NULL) 503231994Skevlo errx(EX_CONFIG, "crypt(3) failure"); 504231994Skevlo return strcpy(buf, cryptpw); 50520253Sjoerg} 50620253Sjoerg 507286196Sbaptstatic char * 508286196Sbaptpw_password(struct userconf * cnf, char const * user, bool dryrun) 50920253Sjoerg{ 51020253Sjoerg int i, l; 51120253Sjoerg char pwbuf[32]; 51220253Sjoerg 51320253Sjoerg switch (cnf->default_password) { 51420253Sjoerg case -1: /* Random password */ 51573563Skris l = (arc4random() % 8 + 8); /* 8 - 16 chars */ 51620253Sjoerg for (i = 0; i < l; i++) 517181785Sache pwbuf[i] = chars[arc4random_uniform(sizeof(chars)-1)]; 51820253Sjoerg pwbuf[i] = '\0'; 51920253Sjoerg 52020253Sjoerg /* 52120253Sjoerg * We give this information back to the user 52220253Sjoerg */ 523286196Sbapt if (conf.fd == -1 && !dryrun) { 52461957Sache if (isatty(STDOUT_FILENO)) 52520712Sdavidn printf("Password for '%s' is: ", user); 52620253Sjoerg printf("%s\n", pwbuf); 52720253Sjoerg fflush(stdout); 52820253Sjoerg } 52920253Sjoerg break; 53020253Sjoerg 53120253Sjoerg case -2: /* No password at all! */ 53220253Sjoerg return ""; 53320253Sjoerg 53420253Sjoerg case 0: /* No login - default */ 53520253Sjoerg default: 53620253Sjoerg return "*"; 53720253Sjoerg 53820253Sjoerg case 1: /* user's name */ 539130633Srobert strlcpy(pwbuf, user, sizeof(pwbuf)); 54020253Sjoerg break; 54120253Sjoerg } 54220253Sjoerg return pw_pwcrypt(pwbuf); 54320253Sjoerg} 54420253Sjoerg 545284111Sbaptstatic int 546286196Sbaptprint_user(struct passwd * pwd, bool pretty, bool v7) 547284111Sbapt{ 548286196Sbapt int j; 549286196Sbapt char *p; 550286196Sbapt struct group *grp = GETGRGID(pwd->pw_gid); 551286196Sbapt char uname[60] = "User &", office[60] = "[None]", 552286196Sbapt wphone[60] = "[None]", hphone[60] = "[None]"; 553286196Sbapt char acexpire[32] = "[None]", pwexpire[32] = "[None]"; 554286196Sbapt struct tm * tptr; 555286196Sbapt 556286196Sbapt if (!pretty) { 557286196Sbapt p = v7 ? pw_make_v7(pwd) : pw_make(pwd); 558286196Sbapt printf("%s\n", p); 559286196Sbapt free(p); 560286196Sbapt return (EXIT_SUCCESS); 561286196Sbapt } 562286196Sbapt 563286196Sbapt if ((p = strtok(pwd->pw_gecos, ",")) != NULL) { 564286196Sbapt strlcpy(uname, p, sizeof(uname)); 565286196Sbapt if ((p = strtok(NULL, ",")) != NULL) { 566286196Sbapt strlcpy(office, p, sizeof(office)); 567286196Sbapt if ((p = strtok(NULL, ",")) != NULL) { 568286196Sbapt strlcpy(wphone, p, sizeof(wphone)); 569286196Sbapt if ((p = strtok(NULL, "")) != NULL) { 570286196Sbapt strlcpy(hphone, p, sizeof(hphone)); 571286196Sbapt } 572286196Sbapt } 573286196Sbapt } 574286196Sbapt } 575286196Sbapt /* 576286196Sbapt * Handle '&' in gecos field 577286196Sbapt */ 578286196Sbapt if ((p = strchr(uname, '&')) != NULL) { 579286196Sbapt int l = strlen(pwd->pw_name); 580286196Sbapt int m = strlen(p); 581286196Sbapt 582286196Sbapt memmove(p + l, p + 1, m); 583286196Sbapt memmove(p, pwd->pw_name, l); 584286196Sbapt *p = (char) toupper((unsigned char)*p); 585286196Sbapt } 586286196Sbapt if (pwd->pw_expire > (time_t)0 && (tptr = localtime(&pwd->pw_expire)) != NULL) 587286196Sbapt strftime(acexpire, sizeof acexpire, "%c", tptr); 588286196Sbapt if (pwd->pw_change > (time_t)0 && (tptr = localtime(&pwd->pw_change)) != NULL) 589286196Sbapt strftime(pwexpire, sizeof pwexpire, "%c", tptr); 590286196Sbapt printf("Login Name: %-15s #%-12ju Group: %-15s #%ju\n" 591286196Sbapt " Full Name: %s\n" 592286196Sbapt " Home: %-26.26s Class: %s\n" 593286196Sbapt " Shell: %-26.26s Office: %s\n" 594286196Sbapt "Work Phone: %-26.26s Home Phone: %s\n" 595286196Sbapt "Acc Expire: %-26.26s Pwd Expire: %s\n", 596286196Sbapt pwd->pw_name, (uintmax_t)pwd->pw_uid, 597286196Sbapt grp ? grp->gr_name : "(invalid)", (uintmax_t)pwd->pw_gid, 598286196Sbapt uname, pwd->pw_dir, pwd->pw_class, 599286196Sbapt pwd->pw_shell, office, wphone, hphone, 600286196Sbapt acexpire, pwexpire); 601286196Sbapt SETGRENT(); 602286196Sbapt j = 0; 603286196Sbapt while ((grp=GETGRENT()) != NULL) { 604286196Sbapt int i = 0; 605286196Sbapt if (grp->gr_mem != NULL) { 606286196Sbapt while (grp->gr_mem[i] != NULL) { 607286196Sbapt if (strcmp(grp->gr_mem[i], pwd->pw_name)==0) { 608286196Sbapt printf(j++ == 0 ? " Groups: %s" : ",%s", grp->gr_name); 609286196Sbapt break; 610286196Sbapt } 611286196Sbapt ++i; 612286196Sbapt } 613286196Sbapt } 614286196Sbapt } 615286196Sbapt ENDGRENT(); 616286196Sbapt printf("%s", j ? "\n" : ""); 617286196Sbapt return (EXIT_SUCCESS); 618286196Sbapt} 619286196Sbapt 620286196Sbaptchar * 621286196Sbaptpw_checkname(char *name, int gecos) 622286196Sbapt{ 623286196Sbapt char showch[8]; 624286196Sbapt const char *badchars, *ch, *showtype; 625286196Sbapt int reject; 626286196Sbapt 627286196Sbapt ch = name; 628286196Sbapt reject = 0; 629286196Sbapt if (gecos) { 630286196Sbapt /* See if the name is valid as a gecos (comment) field. */ 631286196Sbapt badchars = ":!@"; 632286196Sbapt showtype = "gecos field"; 633286196Sbapt } else { 634286196Sbapt /* See if the name is valid as a userid or group. */ 635286196Sbapt badchars = " ,\t:+&#%$^()!@~*?<>=|\\/\""; 636286196Sbapt showtype = "userid/group name"; 637286196Sbapt /* Userids and groups can not have a leading '-'. */ 638286196Sbapt if (*ch == '-') 639286196Sbapt reject = 1; 640286196Sbapt } 641286196Sbapt if (!reject) { 642286196Sbapt while (*ch) { 643291658Sbapt if (strchr(badchars, *ch) != NULL || 644291658Sbapt (!gecos && *ch < ' ') || 645286196Sbapt *ch == 127) { 646286196Sbapt reject = 1; 647286196Sbapt break; 648286196Sbapt } 649286196Sbapt /* 8-bit characters are only allowed in GECOS fields */ 650286196Sbapt if (!gecos && (*ch & 0x80)) { 651286196Sbapt reject = 1; 652286196Sbapt break; 653286196Sbapt } 654286196Sbapt ch++; 655286196Sbapt } 656286196Sbapt } 657286196Sbapt /* 658286196Sbapt * A `$' is allowed as the final character for userids and groups, 659286196Sbapt * mainly for the benefit of samba. 660286196Sbapt */ 661286196Sbapt if (reject && !gecos) { 662286196Sbapt if (*ch == '$' && *(ch + 1) == '\0') { 663286196Sbapt reject = 0; 664286196Sbapt ch++; 665286196Sbapt } 666286196Sbapt } 667286196Sbapt if (reject) { 668286196Sbapt snprintf(showch, sizeof(showch), (*ch >= ' ' && *ch < 127) 669286196Sbapt ? "`%c'" : "0x%02x", *ch); 670286196Sbapt errx(EX_DATAERR, "invalid character %s at position %td in %s", 671286196Sbapt showch, (ch - name), showtype); 672286196Sbapt } 673286196Sbapt if (!gecos && (ch - name) > LOGNAMESIZE) 674286196Sbapt errx(EX_USAGE, "name too long `%s' (max is %d)", name, 675286196Sbapt LOGNAMESIZE); 676286196Sbapt 677286196Sbapt return (name); 678286196Sbapt} 679286196Sbapt 680286196Sbaptstatic void 681286196Sbaptrmat(uid_t uid) 682286196Sbapt{ 683286196Sbapt DIR *d = opendir("/var/at/jobs"); 684286196Sbapt 685286196Sbapt if (d != NULL) { 686286196Sbapt struct dirent *e; 687286196Sbapt 688286196Sbapt while ((e = readdir(d)) != NULL) { 689286196Sbapt struct stat st; 690286196Sbapt 691286196Sbapt if (strncmp(e->d_name, ".lock", 5) != 0 && 692286196Sbapt stat(e->d_name, &st) == 0 && 693286196Sbapt !S_ISDIR(st.st_mode) && 694286196Sbapt st.st_uid == uid) { 695286196Sbapt char tmp[MAXPATHLEN]; 696286196Sbapt 697286202Sbapt snprintf(tmp, sizeof(tmp), "/usr/bin/atrm %s", 698286202Sbapt e->d_name); 699286196Sbapt system(tmp); 700286196Sbapt } 701286196Sbapt } 702286196Sbapt closedir(d); 703286196Sbapt } 704286196Sbapt} 705286196Sbapt 706286196Sbaptstatic void 707286196Sbaptrmopie(char const * name) 708286196Sbapt{ 709286196Sbapt char tmp[1014]; 710286196Sbapt FILE *fp; 711286196Sbapt int fd; 712286196Sbapt size_t len; 713286196Sbapt off_t atofs = 0; 714286196Sbapt 715286196Sbapt if ((fd = openat(conf.rootfd, "etc/opiekeys", O_RDWR)) == -1) 716286196Sbapt return; 717286196Sbapt 718286196Sbapt fp = fdopen(fd, "r+"); 719286196Sbapt len = strlen(name); 720286196Sbapt 721286196Sbapt while (fgets(tmp, sizeof(tmp), fp) != NULL) { 722286196Sbapt if (strncmp(name, tmp, len) == 0 && tmp[len]==' ') { 723286196Sbapt /* Comment username out */ 724286196Sbapt if (fseek(fp, atofs, SEEK_SET) == 0) 725286196Sbapt fwrite("#", 1, 1, fp); 726286196Sbapt break; 727286196Sbapt } 728286196Sbapt atofs = ftell(fp); 729286196Sbapt } 730286196Sbapt /* 731286196Sbapt * If we got an error of any sort, don't update! 732286196Sbapt */ 733286196Sbapt fclose(fp); 734286196Sbapt} 735286196Sbapt 736286196Sbaptint 737286196Sbaptpw_user_next(int argc, char **argv, char *name __unused) 738286196Sbapt{ 739286196Sbapt struct userconf *cnf = NULL; 740286196Sbapt const char *cfg = NULL; 741286196Sbapt int ch; 742286196Sbapt bool quiet = false; 743286196Sbapt uid_t next; 744286196Sbapt 745301367Sbapt while ((ch = getopt(argc, argv, "C:q")) != -1) { 746286196Sbapt switch (ch) { 747286196Sbapt case 'C': 748286196Sbapt cfg = optarg; 749286196Sbapt break; 750286196Sbapt case 'q': 751286217Sadrian quiet = true; 752286196Sbapt break; 753286196Sbapt } 754286196Sbapt } 755286196Sbapt 756286196Sbapt if (quiet) 757286196Sbapt freopen(_PATH_DEVNULL, "w", stderr); 758286196Sbapt 759286196Sbapt cnf = get_userconfig(cfg); 760286196Sbapt 761286196Sbapt next = pw_uidpolicy(cnf, -1); 762286196Sbapt 763286196Sbapt printf("%ju:", (uintmax_t)next); 764286196Sbapt pw_groupnext(cnf, quiet); 765286196Sbapt 766286196Sbapt return (EXIT_SUCCESS); 767286196Sbapt} 768286196Sbapt 769286196Sbaptint 770286196Sbaptpw_user_show(int argc, char **argv, char *arg1) 771286196Sbapt{ 772285401Sbapt struct passwd *pwd = NULL; 773286196Sbapt char *name = NULL; 774286218Sbapt intmax_t id = -1; 775286196Sbapt int ch; 776286196Sbapt bool all = false; 777286196Sbapt bool pretty = false; 778286196Sbapt bool force = false; 779286196Sbapt bool v7 = false; 780286196Sbapt bool quiet = false; 78120253Sjoerg 782286196Sbapt if (arg1 != NULL) { 783286259Sed if (arg1[strspn(arg1, "0123456789")] == '\0') 784286196Sbapt id = pw_checkid(arg1, UID_MAX); 785286196Sbapt else 786286196Sbapt name = arg1; 787286196Sbapt } 788286196Sbapt 789286196Sbapt while ((ch = getopt(argc, argv, "C:qn:u:FPa7")) != -1) { 790286196Sbapt switch (ch) { 791286196Sbapt case 'C': 792286196Sbapt /* ignore compatibility */ 793286196Sbapt break; 794286196Sbapt case 'q': 795286196Sbapt quiet = true; 796286196Sbapt break; 797286196Sbapt case 'n': 798286196Sbapt name = optarg; 799286196Sbapt break; 800286196Sbapt case 'u': 801286196Sbapt id = pw_checkid(optarg, UID_MAX); 802286196Sbapt break; 803286196Sbapt case 'F': 804286196Sbapt force = true; 805286196Sbapt break; 806286196Sbapt case 'P': 807286196Sbapt pretty = true; 808286196Sbapt break; 809286196Sbapt case 'a': 810286196Sbapt all = true; 811286196Sbapt break; 812287799Sbapt case '7': 813286196Sbapt v7 = true; 814286196Sbapt break; 815286196Sbapt } 816286196Sbapt } 817286196Sbapt 818286196Sbapt if (quiet) 819286196Sbapt freopen(_PATH_DEVNULL, "w", stderr); 820286196Sbapt 821286196Sbapt if (all) { 822286196Sbapt SETPWENT(); 823286196Sbapt while ((pwd = GETPWENT()) != NULL) 824286196Sbapt print_user(pwd, pretty, v7); 825286196Sbapt ENDPWENT(); 826286196Sbapt return (EXIT_SUCCESS); 827286196Sbapt } 828286196Sbapt 829285401Sbapt if (id < 0 && name == NULL) 830285401Sbapt errx(EX_DATAERR, "username or id required"); 831285401Sbapt 832285401Sbapt pwd = (name != NULL) ? GETPWNAM(pw_checkname(name, 0)) : GETPWUID(id); 833285401Sbapt if (pwd == NULL) { 834286196Sbapt if (force) { 835286196Sbapt pwd = &fakeuser; 836286196Sbapt } else { 837286196Sbapt if (name == NULL) 838286196Sbapt errx(EX_NOUSER, "no such uid `%ju'", 839286196Sbapt (uintmax_t) id); 840286196Sbapt errx(EX_NOUSER, "no such user `%s'", name); 841286196Sbapt } 842286196Sbapt } 843286196Sbapt 844286196Sbapt return (print_user(pwd, pretty, v7)); 845286196Sbapt} 846286196Sbapt 847286196Sbaptint 848286196Sbaptpw_user_del(int argc, char **argv, char *arg1) 849286196Sbapt{ 850286196Sbapt struct userconf *cnf = NULL; 851286196Sbapt struct passwd *pwd = NULL; 852286196Sbapt struct group *gr, *grp; 853286196Sbapt char *name = NULL; 854286196Sbapt char grname[MAXLOGNAME]; 855286196Sbapt char *nispasswd = NULL; 856286196Sbapt char file[MAXPATHLEN]; 857286196Sbapt char home[MAXPATHLEN]; 858286196Sbapt const char *cfg = NULL; 859286196Sbapt struct stat st; 860286218Sbapt intmax_t id = -1; 861286196Sbapt int ch, rc; 862286196Sbapt bool nis = false; 863286196Sbapt bool deletehome = false; 864286196Sbapt bool quiet = false; 865286196Sbapt 866286196Sbapt if (arg1 != NULL) { 867286259Sed if (arg1[strspn(arg1, "0123456789")] == '\0') 868286196Sbapt id = pw_checkid(arg1, UID_MAX); 869286196Sbapt else 870286196Sbapt name = arg1; 871286196Sbapt } 872286196Sbapt 873286196Sbapt while ((ch = getopt(argc, argv, "C:qn:u:rYy:")) != -1) { 874286196Sbapt switch (ch) { 875286196Sbapt case 'C': 876286196Sbapt cfg = optarg; 877286196Sbapt break; 878286196Sbapt case 'q': 879286196Sbapt quiet = true; 880286196Sbapt break; 881286196Sbapt case 'n': 882286196Sbapt name = optarg; 883286196Sbapt break; 884286196Sbapt case 'u': 885286196Sbapt id = pw_checkid(optarg, UID_MAX); 886286196Sbapt break; 887286196Sbapt case 'r': 888286196Sbapt deletehome = true; 889286196Sbapt break; 890286196Sbapt case 'y': 891286196Sbapt nispasswd = optarg; 892286196Sbapt break; 893286196Sbapt case 'Y': 894286196Sbapt nis = true; 895286196Sbapt break; 896286196Sbapt } 897286196Sbapt } 898286196Sbapt 899286196Sbapt if (quiet) 900286196Sbapt freopen(_PATH_DEVNULL, "w", stderr); 901286196Sbapt 902286196Sbapt if (id < 0 && name == NULL) 903286196Sbapt errx(EX_DATAERR, "username or id required"); 904286196Sbapt 905286196Sbapt cnf = get_userconfig(cfg); 906286196Sbapt 907286196Sbapt if (nispasswd == NULL) 908286196Sbapt nispasswd = cnf->nispasswd; 909286196Sbapt 910286196Sbapt pwd = (name != NULL) ? GETPWNAM(pw_checkname(name, 0)) : GETPWUID(id); 911286196Sbapt if (pwd == NULL) { 912285401Sbapt if (name == NULL) 913286196Sbapt errx(EX_NOUSER, "no such uid `%ju'", (uintmax_t) id); 914285401Sbapt errx(EX_NOUSER, "no such user `%s'", name); 915285401Sbapt } 916285989Sbapt 917285989Sbapt if (PWF._altdir == PWF_REGULAR && 918286196Sbapt ((pwd->pw_fields & _PWF_SOURCE) != _PWF_FILES)) { 919286196Sbapt if ((pwd->pw_fields & _PWF_SOURCE) == _PWF_NIS) { 920286196Sbapt if (!nis && nispasswd && *nispasswd != '/') 921286196Sbapt errx(EX_NOUSER, "Cannot remove NIS user `%s'", 922286196Sbapt name); 923286196Sbapt } else { 924286196Sbapt errx(EX_NOUSER, "Cannot remove non local user `%s'", 925286196Sbapt name); 926286196Sbapt } 927286196Sbapt } 928285989Sbapt 929286196Sbapt id = pwd->pw_uid; 930285401Sbapt if (name == NULL) 931285401Sbapt name = pwd->pw_name; 932285401Sbapt 933284111Sbapt if (strcmp(pwd->pw_name, "root") == 0) 934284111Sbapt errx(EX_DATAERR, "cannot remove user 'root'"); 935284111Sbapt 936286196Sbapt /* Remove opie record from /etc/opiekeys */ 937285433Sbapt if (PWALTDIR() != PWF_ALT) 938284111Sbapt rmopie(pwd->pw_name); 939284111Sbapt 940285433Sbapt if (!PWALTDIR()) { 941285433Sbapt /* Remove crontabs */ 942284111Sbapt snprintf(file, sizeof(file), "/var/cron/tabs/%s", pwd->pw_name); 943284111Sbapt if (access(file, F_OK) == 0) { 944286202Sbapt snprintf(file, sizeof(file), "crontab -u %s -r", 945286202Sbapt pwd->pw_name); 946284111Sbapt system(file); 947284111Sbapt } 948284111Sbapt } 949286196Sbapt 950284111Sbapt /* 951284111Sbapt * Save these for later, since contents of pwd may be 952284111Sbapt * invalidated by deletion 953284111Sbapt */ 954284111Sbapt snprintf(file, sizeof(file), "%s/%s", _PATH_MAILDIR, pwd->pw_name); 955284111Sbapt strlcpy(home, pwd->pw_dir, sizeof(home)); 956284111Sbapt gr = GETGRGID(pwd->pw_gid); 957284111Sbapt if (gr != NULL) 958284111Sbapt strlcpy(grname, gr->gr_name, LOGNAMESIZE); 959284111Sbapt else 960284111Sbapt grname[0] = '\0'; 961284111Sbapt 962284111Sbapt rc = delpwent(pwd); 963284111Sbapt if (rc == -1) 964284111Sbapt err(EX_IOERR, "user '%s' does not exist", pwd->pw_name); 965284111Sbapt else if (rc != 0) 966284111Sbapt err(EX_IOERR, "passwd update"); 967284111Sbapt 968286196Sbapt if (nis && nispasswd && *nispasswd=='/') { 969286196Sbapt rc = delnispwent(nispasswd, name); 970284111Sbapt if (rc == -1) 971285401Sbapt warnx("WARNING: user '%s' does not exist in NIS passwd", 972285401Sbapt pwd->pw_name); 973284111Sbapt else if (rc != 0) 974284111Sbapt warn("WARNING: NIS passwd update"); 975284111Sbapt } 976284111Sbapt 977284128Sbapt grp = GETGRNAM(name); 978284111Sbapt if (grp != NULL && 979284111Sbapt (grp->gr_mem == NULL || *grp->gr_mem == NULL) && 980284128Sbapt strcmp(name, grname) == 0) 981284128Sbapt delgrent(GETGRNAM(name)); 982284111Sbapt SETGRENT(); 983284111Sbapt while ((grp = GETGRENT()) != NULL) { 984284111Sbapt int i, j; 985284111Sbapt char group[MAXLOGNAME]; 986284113Sbapt if (grp->gr_mem == NULL) 987284113Sbapt continue; 988284113Sbapt 989284113Sbapt for (i = 0; grp->gr_mem[i] != NULL; i++) { 990284128Sbapt if (strcmp(grp->gr_mem[i], name) != 0) 991284113Sbapt continue; 992284113Sbapt 993284113Sbapt for (j = i; grp->gr_mem[j] != NULL; j++) 994284113Sbapt grp->gr_mem[j] = grp->gr_mem[j+1]; 995284113Sbapt strlcpy(group, grp->gr_name, MAXLOGNAME); 996284113Sbapt chggrent(group, grp); 997284111Sbapt } 998284111Sbapt } 999284111Sbapt ENDGRENT(); 1000284111Sbapt 1001286196Sbapt pw_log(cnf, M_DELETE, W_USER, "%s(%ju) account removed", name, 1002286196Sbapt (uintmax_t)id); 1003284111Sbapt 1004285433Sbapt /* Remove mail file */ 1005285433Sbapt if (PWALTDIR() != PWF_ALT) 1006285433Sbapt unlinkat(conf.rootfd, file + 1, 0); 1007284111Sbapt 1008286196Sbapt /* Remove at jobs */ 1009286196Sbapt if (!PWALTDIR() && getpwuid(id) == NULL) 1010286196Sbapt rmat(id); 1011284111Sbapt 1012285433Sbapt /* Remove home directory and contents */ 1013286196Sbapt if (PWALTDIR() != PWF_ALT && deletehome && *home == '/' && 1014286196Sbapt GETPWUID(id) == NULL && 1015285433Sbapt fstatat(conf.rootfd, home + 1, &st, 0) != -1) { 1016286196Sbapt rm_r(conf.rootfd, home, id); 1017286196Sbapt pw_log(cnf, M_DELETE, W_USER, "%s(%ju) home '%s' %s" 1018286196Sbapt "removed", name, (uintmax_t)id, home, 1019285433Sbapt fstatat(conf.rootfd, home + 1, &st, 0) == -1 ? "" : "not " 1020285433Sbapt "completely "); 1021284111Sbapt } 1022284111Sbapt 1023284111Sbapt return (EXIT_SUCCESS); 1024284111Sbapt} 1025284111Sbapt 1026286196Sbaptint 1027286196Sbaptpw_user_lock(int argc, char **argv, char *arg1) 102820253Sjoerg{ 1029286196Sbapt int ch; 103020253Sjoerg 1031286196Sbapt while ((ch = getopt(argc, argv, "Cq")) != -1) { 1032286196Sbapt switch (ch) { 1033286196Sbapt case 'C': 1034286196Sbapt case 'q': 1035286196Sbapt /* compatibility */ 1036286196Sbapt break; 103720253Sjoerg } 1038286196Sbapt } 103920253Sjoerg 1040286196Sbapt return (pw_userlock(arg1, M_LOCK)); 1041286196Sbapt} 1042286196Sbapt 1043286196Sbaptint 1044286196Sbaptpw_user_unlock(int argc, char **argv, char *arg1) 1045286196Sbapt{ 1046286196Sbapt int ch; 1047286196Sbapt 1048286196Sbapt while ((ch = getopt(argc, argv, "Cq")) != -1) { 1049286196Sbapt switch (ch) { 1050286196Sbapt case 'C': 1051286196Sbapt case 'q': 1052286196Sbapt /* compatibility */ 1053286196Sbapt break; 105420253Sjoerg } 105520253Sjoerg } 1056286196Sbapt 1057286196Sbapt return (pw_userlock(arg1, M_UNLOCK)); 105820253Sjoerg} 105920253Sjoerg 1060286196Sbaptstatic struct group * 1061286196Sbaptgroup_from_name_or_id(char *name) 106220253Sjoerg{ 1063286196Sbapt const char *errstr = NULL; 1064286196Sbapt struct group *grp; 1065286196Sbapt uintmax_t id; 106620253Sjoerg 1067286196Sbapt if ((grp = GETGRNAM(name)) == NULL) { 1068286196Sbapt id = strtounum(name, 0, GID_MAX, &errstr); 1069286196Sbapt if (errstr) 1070286196Sbapt errx(EX_NOUSER, "group `%s' does not exist", name); 1071286196Sbapt grp = GETGRGID(id); 1072286196Sbapt if (grp == NULL) 1073286196Sbapt errx(EX_NOUSER, "group `%s' does not exist", name); 107420253Sjoerg } 1075286196Sbapt 1076286196Sbapt return (grp); 1077286196Sbapt} 1078286196Sbapt 1079286196Sbaptstatic void 1080286196Sbaptsplit_groups(StringList **groups, char *groupsstr) 1081286196Sbapt{ 1082286196Sbapt struct group *grp; 1083286196Sbapt char *p; 1084286196Sbapt char tok[] = ", \t"; 1085286196Sbapt 1086286196Sbapt for (p = strtok(groupsstr, tok); p != NULL; p = strtok(NULL, tok)) { 1087286196Sbapt grp = group_from_name_or_id(p); 1088286196Sbapt if (*groups == NULL) 1089286196Sbapt *groups = sl_init(); 1090286196Sbapt sl_add(*groups, newstr(grp->gr_name)); 1091286196Sbapt } 1092286196Sbapt} 1093286196Sbapt 1094286196Sbaptstatic void 1095286196Sbaptvalidate_grname(struct userconf *cnf, char *group) 1096286196Sbapt{ 1097286196Sbapt struct group *grp; 1098286196Sbapt 1099286196Sbapt if (group == NULL || *group == '\0') { 1100286196Sbapt cnf->default_group = ""; 1101286196Sbapt return; 1102286196Sbapt } 1103286196Sbapt grp = group_from_name_or_id(group); 1104286196Sbapt cnf->default_group = newstr(grp->gr_name); 1105286196Sbapt} 1106286196Sbapt 1107286196Sbaptstatic mode_t 1108286196Sbaptvalidate_mode(char *mode) 1109286196Sbapt{ 1110286196Sbapt mode_t m; 1111286196Sbapt void *set; 1112286196Sbapt 1113286196Sbapt if ((set = setmode(mode)) == NULL) 1114286196Sbapt errx(EX_DATAERR, "invalid directory creation mode '%s'", mode); 1115286196Sbapt 1116286196Sbapt m = getmode(set, _DEF_DIRMODE); 1117286196Sbapt free(set); 1118286196Sbapt return (m); 1119286196Sbapt} 1120286196Sbapt 1121286196Sbaptstatic void 1122286196Sbaptmix_config(struct userconf *cmdcnf, struct userconf *cfg) 1123286196Sbapt{ 1124286196Sbapt 1125286196Sbapt if (cmdcnf->default_password == 0) 1126286196Sbapt cmdcnf->default_password = cfg->default_password; 1127286196Sbapt if (cmdcnf->reuse_uids == 0) 1128286196Sbapt cmdcnf->reuse_uids = cfg->reuse_uids; 1129286196Sbapt if (cmdcnf->reuse_gids == 0) 1130286196Sbapt cmdcnf->reuse_gids = cfg->reuse_gids; 1131286196Sbapt if (cmdcnf->nispasswd == NULL) 1132286196Sbapt cmdcnf->nispasswd = cfg->nispasswd; 1133286196Sbapt if (cmdcnf->dotdir == NULL) 1134286196Sbapt cmdcnf->dotdir = cfg->dotdir; 1135286196Sbapt if (cmdcnf->newmail == NULL) 1136286196Sbapt cmdcnf->newmail = cfg->newmail; 1137286196Sbapt if (cmdcnf->logfile == NULL) 1138286196Sbapt cmdcnf->logfile = cfg->logfile; 1139286196Sbapt if (cmdcnf->home == NULL) 1140286196Sbapt cmdcnf->home = cfg->home; 1141286196Sbapt if (cmdcnf->homemode == 0) 1142286196Sbapt cmdcnf->homemode = cfg->homemode; 1143286196Sbapt if (cmdcnf->shelldir == NULL) 1144286196Sbapt cmdcnf->shelldir = cfg->shelldir; 1145286196Sbapt if (cmdcnf->shells == NULL) 1146286196Sbapt cmdcnf->shells = cfg->shells; 1147286196Sbapt if (cmdcnf->shell_default == NULL) 1148286196Sbapt cmdcnf->shell_default = cfg->shell_default; 1149286196Sbapt if (cmdcnf->default_group == NULL) 1150286196Sbapt cmdcnf->default_group = cfg->default_group; 1151286196Sbapt if (cmdcnf->groups == NULL) 1152286196Sbapt cmdcnf->groups = cfg->groups; 1153286196Sbapt if (cmdcnf->default_class == NULL) 1154286196Sbapt cmdcnf->default_class = cfg->default_class; 1155286196Sbapt if (cmdcnf->min_uid == 0) 1156286196Sbapt cmdcnf->min_uid = cfg->min_uid; 1157286196Sbapt if (cmdcnf->max_uid == 0) 1158286196Sbapt cmdcnf->max_uid = cfg->max_uid; 1159286196Sbapt if (cmdcnf->min_gid == 0) 1160286196Sbapt cmdcnf->min_gid = cfg->min_gid; 1161286196Sbapt if (cmdcnf->max_gid == 0) 1162286196Sbapt cmdcnf->max_gid = cfg->max_gid; 1163286196Sbapt if (cmdcnf->expire_days == 0) 1164286196Sbapt cmdcnf->expire_days = cfg->expire_days; 1165286196Sbapt if (cmdcnf->password_days == 0) 1166286196Sbapt cmdcnf->password_days = cfg->password_days; 1167286196Sbapt} 1168286196Sbapt 1169286196Sbaptint 1170286196Sbaptpw_user_add(int argc, char **argv, char *arg1) 1171286196Sbapt{ 1172286196Sbapt struct userconf *cnf, *cmdcnf; 1173286196Sbapt struct passwd *pwd; 1174286196Sbapt struct group *grp; 1175286196Sbapt struct stat st; 1176286196Sbapt char args[] = "C:qn:u:c:d:e:p:g:G:mM:k:s:oL:i:w:h:H:Db:NPy:Y"; 1177286196Sbapt char line[_PASSWORD_LEN+1], path[MAXPATHLEN]; 1178286196Sbapt char *gecos, *homedir, *skel, *walk, *userid, *groupid, *grname; 1179286196Sbapt char *default_passwd, *name, *p; 1180316347Sbapt const char *cfg = NULL; 1181286196Sbapt login_cap_t *lc; 1182286196Sbapt FILE *pfp, *fp; 1183286196Sbapt intmax_t id = -1; 1184286196Sbapt time_t now; 1185286196Sbapt int rc, ch, fd = -1; 1186286196Sbapt size_t i; 1187286196Sbapt bool dryrun, nis, pretty, quiet, createhome, precrypted, genconf; 1188286196Sbapt 1189286196Sbapt dryrun = nis = pretty = quiet = createhome = precrypted = false; 1190286196Sbapt genconf = false; 1191286196Sbapt gecos = homedir = skel = userid = groupid = default_passwd = NULL; 1192286196Sbapt grname = name = NULL; 1193286196Sbapt 1194286196Sbapt if ((cmdcnf = calloc(1, sizeof(struct userconf))) == NULL) 1195286196Sbapt err(EXIT_FAILURE, "calloc()"); 1196286196Sbapt 1197286196Sbapt if (arg1 != NULL) { 1198286259Sed if (arg1[strspn(arg1, "0123456789")] == '\0') 1199286196Sbapt id = pw_checkid(arg1, UID_MAX); 1200286196Sbapt else 1201286196Sbapt name = arg1; 1202286196Sbapt } 1203286196Sbapt 1204286196Sbapt while ((ch = getopt(argc, argv, args)) != -1) { 1205286196Sbapt switch (ch) { 1206286196Sbapt case 'C': 1207286196Sbapt cfg = optarg; 1208286196Sbapt break; 1209286196Sbapt case 'q': 1210286196Sbapt quiet = true; 1211286196Sbapt break; 1212286196Sbapt case 'n': 1213286196Sbapt name = optarg; 1214286196Sbapt break; 1215286196Sbapt case 'u': 1216286196Sbapt userid = optarg; 1217286196Sbapt break; 1218286196Sbapt case 'c': 1219286196Sbapt gecos = pw_checkname(optarg, 1); 1220286196Sbapt break; 1221286196Sbapt case 'd': 1222286196Sbapt homedir = optarg; 1223286196Sbapt break; 1224286196Sbapt case 'e': 1225286196Sbapt now = time(NULL); 1226286196Sbapt cmdcnf->expire_days = parse_date(now, optarg); 1227286196Sbapt break; 1228286196Sbapt case 'p': 1229286196Sbapt now = time(NULL); 1230286196Sbapt cmdcnf->password_days = parse_date(now, optarg); 1231286196Sbapt break; 1232286196Sbapt case 'g': 1233286196Sbapt validate_grname(cmdcnf, optarg); 1234286196Sbapt grname = optarg; 1235286196Sbapt break; 1236286196Sbapt case 'G': 1237286196Sbapt split_groups(&cmdcnf->groups, optarg); 1238286196Sbapt break; 1239286196Sbapt case 'm': 1240286196Sbapt createhome = true; 1241286196Sbapt break; 1242286196Sbapt case 'M': 1243286196Sbapt cmdcnf->homemode = validate_mode(optarg); 1244286196Sbapt break; 1245286196Sbapt case 'k': 1246286196Sbapt walk = skel = optarg; 1247286196Sbapt if (*walk == '/') 1248286196Sbapt walk++; 1249286196Sbapt if (fstatat(conf.rootfd, walk, &st, 0) == -1) 1250286196Sbapt errx(EX_OSFILE, "skeleton `%s' does not " 1251286196Sbapt "exists", skel); 1252286196Sbapt if (!S_ISDIR(st.st_mode)) 1253286196Sbapt errx(EX_OSFILE, "skeleton `%s' is not a " 1254286196Sbapt "directory", skel); 1255286196Sbapt cmdcnf->dotdir = skel; 1256286196Sbapt break; 1257286196Sbapt case 's': 1258286196Sbapt cmdcnf->shell_default = optarg; 1259286196Sbapt break; 1260286196Sbapt case 'o': 1261286196Sbapt conf.checkduplicate = false; 1262286196Sbapt break; 1263286196Sbapt case 'L': 1264286196Sbapt cmdcnf->default_class = pw_checkname(optarg, 0); 1265286196Sbapt break; 1266286196Sbapt case 'i': 1267286196Sbapt groupid = optarg; 1268286196Sbapt break; 1269286196Sbapt case 'w': 1270286196Sbapt default_passwd = optarg; 1271286196Sbapt break; 1272286196Sbapt case 'H': 1273286196Sbapt if (fd != -1) 1274286196Sbapt errx(EX_USAGE, "'-h' and '-H' are mutually " 1275286196Sbapt "exclusive options"); 1276286196Sbapt fd = pw_checkfd(optarg); 1277286196Sbapt precrypted = true; 1278286196Sbapt if (fd == '-') 1279286196Sbapt errx(EX_USAGE, "-H expects a file descriptor"); 1280286196Sbapt break; 1281286196Sbapt case 'h': 1282286196Sbapt if (fd != -1) 1283286196Sbapt errx(EX_USAGE, "'-h' and '-H' are mutually " 1284286196Sbapt "exclusive options"); 1285286196Sbapt fd = pw_checkfd(optarg); 1286286196Sbapt break; 1287286196Sbapt case 'D': 1288286196Sbapt genconf = true; 1289286196Sbapt break; 1290286196Sbapt case 'b': 1291286196Sbapt cmdcnf->home = optarg; 1292286196Sbapt break; 1293286196Sbapt case 'N': 1294286196Sbapt dryrun = true; 1295286196Sbapt break; 1296286196Sbapt case 'P': 1297286196Sbapt pretty = true; 1298286196Sbapt break; 1299286196Sbapt case 'y': 1300286196Sbapt cmdcnf->nispasswd = optarg; 1301286196Sbapt break; 1302286196Sbapt case 'Y': 1303286196Sbapt nis = true; 1304286196Sbapt break; 1305109961Sgad } 1306109961Sgad } 1307286196Sbapt 1308286196Sbapt if (geteuid() != 0 && ! dryrun) 1309286196Sbapt errx(EX_NOPERM, "you must be root"); 1310286196Sbapt 1311286196Sbapt if (quiet) 1312286196Sbapt freopen(_PATH_DEVNULL, "w", stderr); 1313286196Sbapt 1314286196Sbapt cnf = get_userconfig(cfg); 1315286196Sbapt 1316286196Sbapt mix_config(cmdcnf, cnf); 1317286196Sbapt if (default_passwd) 1318305741Sasomers cmdcnf->default_password = passwd_val(default_passwd, 1319286196Sbapt cnf->default_password); 1320286196Sbapt if (genconf) { 1321286196Sbapt if (name != NULL) 1322286196Sbapt errx(EX_DATAERR, "can't combine `-D' with `-n name'"); 1323286196Sbapt if (userid != NULL) { 1324286196Sbapt if ((p = strtok(userid, ", \t")) != NULL) 1325286196Sbapt cmdcnf->min_uid = pw_checkid(p, UID_MAX); 1326286196Sbapt if (cmdcnf->min_uid == 0) 1327286196Sbapt cmdcnf->min_uid = 1000; 1328286196Sbapt if ((p = strtok(NULL, " ,\t")) != NULL) 1329286196Sbapt cmdcnf->max_uid = pw_checkid(p, UID_MAX); 1330286196Sbapt if (cmdcnf->max_uid == 0) 1331286196Sbapt cmdcnf->max_uid = 32000; 1332109961Sgad } 1333286196Sbapt if (groupid != NULL) { 1334286196Sbapt if ((p = strtok(groupid, ", \t")) != NULL) 1335286196Sbapt cmdcnf->min_gid = pw_checkid(p, GID_MAX); 1336286196Sbapt if (cmdcnf->min_gid == 0) 1337286196Sbapt cmdcnf->min_gid = 1000; 1338286196Sbapt if ((p = strtok(NULL, " ,\t")) != NULL) 1339286196Sbapt cmdcnf->max_gid = pw_checkid(p, GID_MAX); 1340286196Sbapt if (cmdcnf->max_gid == 0) 1341286196Sbapt cmdcnf->max_gid = 32000; 1342286196Sbapt } 1343286196Sbapt if (write_userconfig(cmdcnf, cfg)) 1344286196Sbapt return (EXIT_SUCCESS); 1345286196Sbapt err(EX_IOERR, "config update"); 1346109961Sgad } 1347286196Sbapt 1348286196Sbapt if (userid) 1349286196Sbapt id = pw_checkid(userid, UID_MAX); 1350286196Sbapt if (id < 0 && name == NULL) 1351286196Sbapt errx(EX_DATAERR, "user name or id required"); 1352286196Sbapt 1353286196Sbapt if (name == NULL) 1354286196Sbapt errx(EX_DATAERR, "login name required"); 1355286196Sbapt 1356286198Sbapt if (GETPWNAM(name) != NULL) 1357286198Sbapt errx(EX_DATAERR, "login name `%s' already exists", name); 1358286198Sbapt 1359316347Sbapt if (!grname) 1360316347Sbapt grname = cmdcnf->default_group; 1361316347Sbapt 1362286196Sbapt pwd = &fakeuser; 1363286196Sbapt pwd->pw_name = name; 1364286196Sbapt pwd->pw_class = cmdcnf->default_class ? cmdcnf->default_class : ""; 1365286196Sbapt pwd->pw_uid = pw_uidpolicy(cmdcnf, id); 1366286196Sbapt pwd->pw_gid = pw_gidpolicy(cnf, grname, pwd->pw_name, 1367286196Sbapt (gid_t) pwd->pw_uid, dryrun); 1368286196Sbapt pwd->pw_change = cmdcnf->password_days; 1369286196Sbapt pwd->pw_expire = cmdcnf->expire_days; 1370286196Sbapt pwd->pw_dir = pw_homepolicy(cmdcnf, homedir, pwd->pw_name); 1371286196Sbapt pwd->pw_shell = pw_shellpolicy(cmdcnf); 1372286196Sbapt lc = login_getpwclass(pwd); 1373286196Sbapt if (lc == NULL || login_setcryptfmt(lc, "sha512", NULL) == NULL) 1374286196Sbapt warn("setting crypt(3) format"); 1375286196Sbapt login_close(lc); 1376286196Sbapt pwd->pw_passwd = pw_password(cmdcnf, pwd->pw_name, dryrun); 1377286196Sbapt if (pwd->pw_uid == 0 && strcmp(pwd->pw_name, "root") != 0) 1378286196Sbapt warnx("WARNING: new account `%s' has a uid of 0 " 1379286196Sbapt "(superuser access!)", pwd->pw_name); 1380286196Sbapt if (gecos) 1381286196Sbapt pwd->pw_gecos = gecos; 1382286196Sbapt 1383286196Sbapt if (fd != -1) 1384286196Sbapt pw_set_passwd(pwd, fd, precrypted, false); 1385286196Sbapt 1386286196Sbapt if (dryrun) 1387286196Sbapt return (print_user(pwd, pretty, false)); 1388286196Sbapt 1389286196Sbapt if ((rc = addpwent(pwd)) != 0) { 1390286196Sbapt if (rc == -1) 1391286196Sbapt errx(EX_IOERR, "user '%s' already exists", 1392286196Sbapt pwd->pw_name); 1393286196Sbapt else if (rc != 0) 1394286196Sbapt err(EX_IOERR, "passwd file update"); 1395109961Sgad } 1396286196Sbapt if (nis && cmdcnf->nispasswd && *cmdcnf->nispasswd == '/') { 1397286196Sbapt printf("%s\n", cmdcnf->nispasswd); 1398286196Sbapt rc = addnispwent(cmdcnf->nispasswd, pwd); 1399286196Sbapt if (rc == -1) 1400286202Sbapt warnx("User '%s' already exists in NIS passwd", 1401286202Sbapt pwd->pw_name); 1402286196Sbapt else if (rc != 0) 1403286196Sbapt warn("NIS passwd update"); 1404286196Sbapt /* NOTE: we treat NIS-only update errors as non-fatal */ 1405286196Sbapt } 1406284110Sbapt 1407286196Sbapt if (cmdcnf->groups != NULL) { 1408286196Sbapt for (i = 0; i < cmdcnf->groups->sl_cur; i++) { 1409286196Sbapt grp = GETGRNAM(cmdcnf->groups->sl_str[i]); 1410286196Sbapt grp = gr_add(grp, pwd->pw_name); 1411286196Sbapt /* 1412286196Sbapt * grp can only be NULL in 2 cases: 1413286196Sbapt * - the new member is already a member 1414286196Sbapt * - a problem with memory occurs 1415286196Sbapt * in both cases we want to skip now. 1416286196Sbapt */ 1417286196Sbapt if (grp == NULL) 1418286196Sbapt continue; 1419286196Sbapt chggrent(grp->gr_name, grp); 1420286196Sbapt free(grp); 1421286196Sbapt } 1422286196Sbapt } 142320253Sjoerg 1424286196Sbapt pwd = GETPWNAM(name); 1425286196Sbapt if (pwd == NULL) 1426286196Sbapt errx(EX_NOUSER, "user '%s' disappeared during update", name); 142720253Sjoerg 1428286196Sbapt grp = GETGRGID(pwd->pw_gid); 1429286196Sbapt pw_log(cnf, M_ADD, W_USER, "%s(%ju):%s(%ju):%s:%s:%s", 1430286196Sbapt pwd->pw_name, (uintmax_t)pwd->pw_uid, 1431286202Sbapt grp ? grp->gr_name : "unknown", 1432286202Sbapt (uintmax_t)(grp ? grp->gr_gid : (uid_t)-1), 1433286196Sbapt pwd->pw_gecos, pwd->pw_dir, pwd->pw_shell); 143420253Sjoerg 1435286196Sbapt /* 1436286196Sbapt * let's touch and chown the user's mail file. This is not 1437286196Sbapt * strictly necessary under BSD with a 0755 maildir but it also 1438286196Sbapt * doesn't hurt anything to create the empty mailfile 1439286196Sbapt */ 1440286196Sbapt if (PWALTDIR() != PWF_ALT) { 1441286196Sbapt snprintf(path, sizeof(path), "%s/%s", _PATH_MAILDIR, 1442286196Sbapt pwd->pw_name); 1443286196Sbapt /* Preserve contents & mtime */ 1444286196Sbapt close(openat(conf.rootfd, path +1, O_RDWR | O_CREAT, 0600)); 1445286196Sbapt fchownat(conf.rootfd, path + 1, pwd->pw_uid, pwd->pw_gid, 1446286196Sbapt AT_SYMLINK_NOFOLLOW); 1447286196Sbapt } 144820253Sjoerg 1449286196Sbapt /* 1450286196Sbapt * Let's create and populate the user's home directory. Note 1451286196Sbapt * that this also `works' for editing users if -m is used, but 1452286196Sbapt * existing files will *not* be overwritten. 1453286196Sbapt */ 1454286196Sbapt if (PWALTDIR() != PWF_ALT && createhome && pwd->pw_dir && 1455286196Sbapt *pwd->pw_dir == '/' && pwd->pw_dir[1]) 1456286196Sbapt create_and_populate_homedir(cmdcnf, pwd, cmdcnf->dotdir, 1457286196Sbapt cmdcnf->homemode, false); 145820253Sjoerg 1459286196Sbapt if (!PWALTDIR() && cmdcnf->newmail && *cmdcnf->newmail && 1460286196Sbapt (fp = fopen(cnf->newmail, "r")) != NULL) { 1461286196Sbapt if ((pfp = popen(_PATH_SENDMAIL " -t", "w")) == NULL) 1462286196Sbapt warn("sendmail"); 1463286196Sbapt else { 1464286196Sbapt fprintf(pfp, "From: root\n" "To: %s\n" 1465286196Sbapt "Subject: Welcome!\n\n", pwd->pw_name); 1466286196Sbapt while (fgets(line, sizeof(line), fp) != NULL) { 1467286196Sbapt /* Do substitutions? */ 1468286196Sbapt fputs(line, pfp); 146920253Sjoerg } 1470286196Sbapt pclose(pfp); 1471286196Sbapt pw_log(cnf, M_ADD, W_USER, "%s(%ju) new user mail sent", 1472286196Sbapt pwd->pw_name, (uintmax_t)pwd->pw_uid); 147320253Sjoerg } 1474286196Sbapt fclose(fp); 147520253Sjoerg } 1476286196Sbapt 1477286196Sbapt if (nis && nis_update() == 0) 1478286196Sbapt pw_log(cnf, M_ADD, W_USER, "NIS maps updated"); 1479286196Sbapt 1480286196Sbapt return (EXIT_SUCCESS); 148120253Sjoerg} 148220747Sdavidn 1483286196Sbaptint 1484286196Sbaptpw_user_mod(int argc, char **argv, char *arg1) 148520747Sdavidn{ 1486286196Sbapt struct userconf *cnf; 1487286196Sbapt struct passwd *pwd; 1488286196Sbapt struct group *grp; 1489286196Sbapt StringList *groups = NULL; 1490286196Sbapt char args[] = "C:qn:u:c:d:e:p:g:G:mM:l:k:s:w:L:h:H:NPYy:"; 1491316347Sbapt const char *cfg = NULL; 1492286196Sbapt char *gecos, *homedir, *grname, *name, *newname, *walk, *skel, *shell; 1493286196Sbapt char *passwd, *class, *nispasswd; 1494286196Sbapt login_cap_t *lc; 1495286196Sbapt struct stat st; 1496286196Sbapt intmax_t id = -1; 1497286196Sbapt int ch, fd = -1; 1498286196Sbapt size_t i, j; 1499312931Sbapt bool quiet, createhome, pretty, dryrun, nis, edited; 1500286218Sbapt bool precrypted; 1501286196Sbapt mode_t homemode = 0; 1502286218Sbapt time_t expire_days, password_days, now; 150320747Sdavidn 1504286196Sbapt expire_days = password_days = -1; 1505286196Sbapt gecos = homedir = grname = name = newname = skel = shell =NULL; 1506286196Sbapt passwd = NULL; 1507286196Sbapt class = nispasswd = NULL; 1508286196Sbapt quiet = createhome = pretty = dryrun = nis = precrypted = false; 1509312931Sbapt edited = false; 151020747Sdavidn 1511286196Sbapt if (arg1 != NULL) { 1512286259Sed if (arg1[strspn(arg1, "0123456789")] == '\0') 1513286196Sbapt id = pw_checkid(arg1, UID_MAX); 1514286196Sbapt else 1515286196Sbapt name = arg1; 1516286196Sbapt } 1517286196Sbapt 1518286196Sbapt while ((ch = getopt(argc, argv, args)) != -1) { 1519286196Sbapt switch (ch) { 1520286196Sbapt case 'C': 1521286196Sbapt cfg = optarg; 1522285433Sbapt break; 1523286196Sbapt case 'q': 1524286196Sbapt quiet = true; 1525286196Sbapt break; 1526286196Sbapt case 'n': 1527286196Sbapt name = optarg; 1528286196Sbapt break; 1529286196Sbapt case 'u': 1530286196Sbapt id = pw_checkid(optarg, UID_MAX); 1531286196Sbapt break; 1532286196Sbapt case 'c': 1533286196Sbapt gecos = pw_checkname(optarg, 1); 1534286196Sbapt break; 1535286196Sbapt case 'd': 1536286196Sbapt homedir = optarg; 1537286196Sbapt break; 1538286196Sbapt case 'e': 1539286196Sbapt now = time(NULL); 1540286196Sbapt expire_days = parse_date(now, optarg); 1541286196Sbapt break; 1542286196Sbapt case 'p': 1543286196Sbapt now = time(NULL); 1544286196Sbapt password_days = parse_date(now, optarg); 1545286196Sbapt break; 1546286196Sbapt case 'g': 1547286196Sbapt group_from_name_or_id(optarg); 1548286196Sbapt grname = optarg; 1549286196Sbapt break; 1550286196Sbapt case 'G': 1551286196Sbapt split_groups(&groups, optarg); 1552286196Sbapt break; 1553286196Sbapt case 'm': 1554286196Sbapt createhome = true; 1555286196Sbapt break; 1556286196Sbapt case 'M': 1557286196Sbapt homemode = validate_mode(optarg); 1558286196Sbapt break; 1559286196Sbapt case 'l': 1560286196Sbapt newname = optarg; 1561286196Sbapt break; 1562286196Sbapt case 'k': 1563286196Sbapt walk = skel = optarg; 1564286196Sbapt if (*walk == '/') 1565286196Sbapt walk++; 1566286196Sbapt if (fstatat(conf.rootfd, walk, &st, 0) == -1) 1567286196Sbapt errx(EX_OSFILE, "skeleton `%s' does not " 1568286196Sbapt "exists", skel); 1569286196Sbapt if (!S_ISDIR(st.st_mode)) 1570286196Sbapt errx(EX_OSFILE, "skeleton `%s' is not a " 1571286196Sbapt "directory", skel); 1572286196Sbapt break; 1573286196Sbapt case 's': 1574286196Sbapt shell = optarg; 1575286196Sbapt break; 1576286196Sbapt case 'w': 1577286196Sbapt passwd = optarg; 1578286196Sbapt break; 1579286196Sbapt case 'L': 1580286196Sbapt class = pw_checkname(optarg, 0); 1581286196Sbapt break; 1582286196Sbapt case 'H': 1583286196Sbapt if (fd != -1) 1584286196Sbapt errx(EX_USAGE, "'-h' and '-H' are mutually " 1585286196Sbapt "exclusive options"); 1586286196Sbapt fd = pw_checkfd(optarg); 1587286196Sbapt precrypted = true; 1588286196Sbapt if (fd == '-') 1589286196Sbapt errx(EX_USAGE, "-H expects a file descriptor"); 1590286196Sbapt break; 1591286196Sbapt case 'h': 1592286196Sbapt if (fd != -1) 1593286196Sbapt errx(EX_USAGE, "'-h' and '-H' are mutually " 1594286196Sbapt "exclusive options"); 1595286196Sbapt fd = pw_checkfd(optarg); 1596286196Sbapt break; 1597286196Sbapt case 'N': 1598286196Sbapt dryrun = true; 1599286196Sbapt break; 1600286196Sbapt case 'P': 1601286196Sbapt pretty = true; 1602286196Sbapt break; 1603286196Sbapt case 'y': 1604286196Sbapt nispasswd = optarg; 1605286196Sbapt break; 1606286196Sbapt case 'Y': 1607286196Sbapt nis = true; 1608286196Sbapt break; 160920747Sdavidn } 161020747Sdavidn } 1611286196Sbapt 1612286196Sbapt if (geteuid() != 0 && ! dryrun) 1613286196Sbapt errx(EX_NOPERM, "you must be root"); 1614286196Sbapt 1615286196Sbapt if (quiet) 1616286196Sbapt freopen(_PATH_DEVNULL, "w", stderr); 1617286196Sbapt 1618286196Sbapt cnf = get_userconfig(cfg); 1619286196Sbapt 1620286196Sbapt if (id < 0 && name == NULL) 1621286196Sbapt errx(EX_DATAERR, "username or id required"); 1622286196Sbapt 1623286196Sbapt pwd = (name != NULL) ? GETPWNAM(pw_checkname(name, 0)) : GETPWUID(id); 1624286196Sbapt if (pwd == NULL) { 1625286196Sbapt if (name == NULL) 1626286196Sbapt errx(EX_NOUSER, "no such uid `%ju'", 1627286196Sbapt (uintmax_t) id); 1628286196Sbapt errx(EX_NOUSER, "no such user `%s'", name); 1629286196Sbapt } 1630286196Sbapt 1631286196Sbapt if (name == NULL) 1632286196Sbapt name = pwd->pw_name; 1633286196Sbapt 1634286196Sbapt if (nis && nispasswd == NULL) 1635286196Sbapt nispasswd = cnf->nispasswd; 1636286196Sbapt 1637286196Sbapt if (PWF._altdir == PWF_REGULAR && 1638286196Sbapt ((pwd->pw_fields & _PWF_SOURCE) != _PWF_FILES)) { 1639286196Sbapt if ((pwd->pw_fields & _PWF_SOURCE) == _PWF_NIS) { 1640286196Sbapt if (!nis && nispasswd && *nispasswd != '/') 1641286196Sbapt errx(EX_NOUSER, "Cannot modify NIS user `%s'", 1642286196Sbapt name); 1643286196Sbapt } else { 1644286196Sbapt errx(EX_NOUSER, "Cannot modify non local user `%s'", 1645286196Sbapt name); 1646286196Sbapt } 1647286196Sbapt } 1648286196Sbapt 1649286196Sbapt if (newname) { 1650286196Sbapt if (strcmp(pwd->pw_name, "root") == 0) 1651286196Sbapt errx(EX_DATAERR, "can't rename `root' account"); 1652286196Sbapt if (strcmp(pwd->pw_name, newname) != 0) { 1653286196Sbapt pwd->pw_name = pw_checkname(newname, 0); 1654286196Sbapt edited = true; 1655286196Sbapt } 1656286196Sbapt } 1657286196Sbapt 1658296300Smarkj if (id >= 0 && pwd->pw_uid != id) { 1659286196Sbapt pwd->pw_uid = id; 1660286196Sbapt edited = true; 1661286196Sbapt if (pwd->pw_uid != 0 && strcmp(pwd->pw_name, "root") == 0) 1662286196Sbapt errx(EX_DATAERR, "can't change uid of `root' account"); 1663286196Sbapt if (pwd->pw_uid == 0 && strcmp(pwd->pw_name, "root") != 0) 1664286202Sbapt warnx("WARNING: account `%s' will have a uid of 0 " 1665286202Sbapt "(superuser access!)", pwd->pw_name); 1666286196Sbapt } 1667286196Sbapt 1668286196Sbapt if (grname && pwd->pw_uid != 0) { 1669286196Sbapt grp = GETGRNAM(grname); 1670286196Sbapt if (grp == NULL) 1671286196Sbapt grp = GETGRGID(pw_checkid(grname, GID_MAX)); 1672286196Sbapt if (grp->gr_gid != pwd->pw_gid) { 1673286196Sbapt pwd->pw_gid = grp->gr_gid; 1674286196Sbapt edited = true; 1675286196Sbapt } 1676286196Sbapt } 1677286196Sbapt 1678286196Sbapt if (password_days >= 0 && pwd->pw_change != password_days) { 1679286196Sbapt pwd->pw_change = password_days; 1680286196Sbapt edited = true; 1681286196Sbapt } 1682286196Sbapt 1683286196Sbapt if (expire_days >= 0 && pwd->pw_expire != expire_days) { 1684286196Sbapt pwd->pw_expire = expire_days; 1685286196Sbapt edited = true; 1686286196Sbapt } 1687286196Sbapt 1688286196Sbapt if (shell) { 1689286196Sbapt shell = shell_path(cnf->shelldir, cnf->shells, shell); 1690286196Sbapt if (shell == NULL) 1691286196Sbapt shell = ""; 1692286196Sbapt if (strcmp(shell, pwd->pw_shell) != 0) { 1693286196Sbapt pwd->pw_shell = shell; 1694286196Sbapt edited = true; 1695286196Sbapt } 1696286196Sbapt } 1697286196Sbapt 1698286196Sbapt if (class && strcmp(pwd->pw_class, class) != 0) { 1699286196Sbapt pwd->pw_class = class; 1700286196Sbapt edited = true; 1701286196Sbapt } 1702286196Sbapt 1703286196Sbapt if (homedir && strcmp(pwd->pw_dir, homedir) != 0) { 1704286196Sbapt pwd->pw_dir = homedir; 1705287701Sbapt edited = true; 1706286196Sbapt if (fstatat(conf.rootfd, pwd->pw_dir, &st, 0) == -1) { 1707286196Sbapt if (!createhome) 1708286196Sbapt warnx("WARNING: home `%s' does not exist", 1709286196Sbapt pwd->pw_dir); 1710286196Sbapt } else if (!S_ISDIR(st.st_mode)) { 1711286196Sbapt warnx("WARNING: home `%s' is not a directory", 1712286196Sbapt pwd->pw_dir); 1713286196Sbapt } 1714286196Sbapt } 1715286196Sbapt 1716286196Sbapt if (passwd && conf.fd == -1) { 1717286196Sbapt lc = login_getpwclass(pwd); 1718286196Sbapt if (lc == NULL || login_setcryptfmt(lc, "sha512", NULL) == NULL) 1719286196Sbapt warn("setting crypt(3) format"); 1720286196Sbapt login_close(lc); 1721305741Sasomers cnf->default_password = passwd_val(passwd, 1722286775Sbapt cnf->default_password); 1723286196Sbapt pwd->pw_passwd = pw_password(cnf, pwd->pw_name, dryrun); 1724286196Sbapt edited = true; 1725286196Sbapt } 1726286196Sbapt 1727286196Sbapt if (gecos && strcmp(pwd->pw_gecos, gecos) != 0) { 1728286196Sbapt pwd->pw_gecos = gecos; 1729286196Sbapt edited = true; 1730286196Sbapt } 1731286196Sbapt 1732286196Sbapt if (fd != -1) 1733286196Sbapt edited = pw_set_passwd(pwd, fd, precrypted, true); 1734286196Sbapt 1735286196Sbapt if (dryrun) 1736286196Sbapt return (print_user(pwd, pretty, false)); 1737286196Sbapt 1738286196Sbapt if (edited) /* Only updated this if required */ 1739286196Sbapt perform_chgpwent(name, pwd, nis ? nispasswd : NULL); 1740286196Sbapt /* Now perform the needed changes concern groups */ 1741286196Sbapt if (groups != NULL) { 1742286196Sbapt /* Delete User from groups using old name */ 1743286196Sbapt SETGRENT(); 1744286196Sbapt while ((grp = GETGRENT()) != NULL) { 1745286196Sbapt if (grp->gr_mem == NULL) 1746286196Sbapt continue; 1747286196Sbapt for (i = 0; grp->gr_mem[i] != NULL; i++) { 1748286196Sbapt if (strcmp(grp->gr_mem[i] , name) != 0) 1749286196Sbapt continue; 1750286196Sbapt for (j = i; grp->gr_mem[j] != NULL ; j++) 1751286196Sbapt grp->gr_mem[j] = grp->gr_mem[j+1]; 1752286196Sbapt chggrent(grp->gr_name, grp); 1753286196Sbapt break; 1754286196Sbapt } 1755286196Sbapt } 1756286196Sbapt ENDGRENT(); 1757286196Sbapt /* Add the user to the needed groups */ 1758286196Sbapt for (i = 0; i < groups->sl_cur; i++) { 1759286196Sbapt grp = GETGRNAM(groups->sl_str[i]); 1760286196Sbapt grp = gr_add(grp, pwd->pw_name); 1761286196Sbapt if (grp == NULL) 1762286196Sbapt continue; 1763286196Sbapt chggrent(grp->gr_name, grp); 1764286196Sbapt free(grp); 1765286196Sbapt } 1766286196Sbapt } 1767286196Sbapt /* In case of rename we need to walk over the different groups */ 1768286196Sbapt if (newname) { 1769286196Sbapt SETGRENT(); 1770286196Sbapt while ((grp = GETGRENT()) != NULL) { 1771286196Sbapt if (grp->gr_mem == NULL) 1772286196Sbapt continue; 1773286196Sbapt for (i = 0; grp->gr_mem[i] != NULL; i++) { 1774286196Sbapt if (strcmp(grp->gr_mem[i], name) != 0) 1775286196Sbapt continue; 1776286196Sbapt grp->gr_mem[i] = newname; 1777286196Sbapt chggrent(grp->gr_name, grp); 1778286196Sbapt break; 1779286196Sbapt } 1780286196Sbapt } 1781286196Sbapt } 1782286196Sbapt 1783286196Sbapt /* go get a current version of pwd */ 1784286196Sbapt if (newname) 1785286196Sbapt name = newname; 1786286196Sbapt pwd = GETPWNAM(name); 1787286196Sbapt if (pwd == NULL) 1788286196Sbapt errx(EX_NOUSER, "user '%s' disappeared during update", name); 1789286196Sbapt grp = GETGRGID(pwd->pw_gid); 1790286196Sbapt pw_log(cnf, M_UPDATE, W_USER, "%s(%ju):%s(%ju):%s:%s:%s", 1791286196Sbapt pwd->pw_name, (uintmax_t)pwd->pw_uid, 1792286196Sbapt grp ? grp->gr_name : "unknown", 1793286196Sbapt (uintmax_t)(grp ? grp->gr_gid : (uid_t)-1), 1794286196Sbapt pwd->pw_gecos, pwd->pw_dir, pwd->pw_shell); 1795286196Sbapt 1796285433Sbapt /* 1797286196Sbapt * Let's create and populate the user's home directory. Note 1798286196Sbapt * that this also `works' for editing users if -m is used, but 1799286196Sbapt * existing files will *not* be overwritten. 1800285433Sbapt */ 1801312931Sbapt if (PWALTDIR() != PWF_ALT && createhome && pwd->pw_dir && 1802286196Sbapt *pwd->pw_dir == '/' && pwd->pw_dir[1]) { 1803286196Sbapt if (!skel) 1804286196Sbapt skel = cnf->dotdir; 1805286196Sbapt if (homemode == 0) 1806286196Sbapt homemode = cnf->homemode; 1807286196Sbapt create_and_populate_homedir(cnf, pwd, skel, homemode, true); 1808286196Sbapt } 1809286196Sbapt 1810286196Sbapt if (nis && nis_update() == 0) 1811286196Sbapt pw_log(cnf, M_UPDATE, W_USER, "NIS maps updated"); 1812286196Sbapt 1813286196Sbapt return (EXIT_SUCCESS); 181420747Sdavidn} 1815