1805 lines
43 KiB
C
1805 lines
43 KiB
C
/*-
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* SPDX-License-Identifier: BSD-2-Clause-FreeBSD
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*
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* Copyright (C) 1996
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* David L. Nugent. All rights reserved.
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*
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* Redistribution and use in source and binary forms, with or without
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* modification, are permitted provided that the following conditions
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* are met:
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* 1. Redistributions of source code must retain the above copyright
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* notice, this list of conditions and the following disclaimer.
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* 2. Redistributions in binary form must reproduce the above copyright
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* notice, this list of conditions and the following disclaimer in the
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* documentation and/or other materials provided with the distribution.
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*
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* THIS SOFTWARE IS PROVIDED BY DAVID L. NUGENT AND CONTRIBUTORS ``AS IS'' AND
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* ANY EXPRESS OR IMPLIED WARRANTIES, INCLUDING, BUT NOT LIMITED TO, THE
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* IMPLIED WARRANTIES OF MERCHANTABILITY AND FITNESS FOR A PARTICULAR PURPOSE
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* ARE DISCLAIMED. IN NO EVENT SHALL DAVID L. NUGENT OR CONTRIBUTORS BE LIABLE
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* FOR ANY DIRECT, INDIRECT, INCIDENTAL, SPECIAL, EXEMPLARY, OR CONSEQUENTIAL
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* DAMAGES (INCLUDING, BUT NOT LIMITED TO, PROCUREMENT OF SUBSTITUTE GOODS
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* OR SERVICES; LOSS OF USE, DATA, OR PROFITS; OR BUSINESS INTERRUPTION)
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* HOWEVER CAUSED AND ON ANY THEORY OF LIABILITY, WHETHER IN CONTRACT, STRICT
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* LIABILITY, OR TORT (INCLUDING NEGLIGENCE OR OTHERWISE) ARISING IN ANY WAY
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* OUT OF THE USE OF THIS SOFTWARE, EVEN IF ADVISED OF THE POSSIBILITY OF
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* SUCH DAMAGE.
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*
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*/
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#ifndef lint
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static const char rcsid[] =
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"$FreeBSD$";
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#endif /* not lint */
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#include <sys/param.h>
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#include <sys/types.h>
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#include <assert.h>
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#include <ctype.h>
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#include <dirent.h>
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#include <err.h>
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#include <errno.h>
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#include <fcntl.h>
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#include <grp.h>
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#include <pwd.h>
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#include <libutil.h>
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#include <login_cap.h>
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#include <paths.h>
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#include <string.h>
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#include <sysexits.h>
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#include <termios.h>
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#include <unistd.h>
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#include "pw.h"
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#include "bitmap.h"
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#include "psdate.h"
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#define LOGNAMESIZE (MAXLOGNAME-1)
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static char locked_str[] = "*LOCKED*";
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static struct passwd fakeuser = {
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"nouser",
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"*",
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-1,
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-1,
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0,
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"",
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"User &",
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"/nonexistent",
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"/bin/sh",
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0,
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0
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};
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static int print_user(struct passwd *pwd, bool pretty, bool v7);
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static uid_t pw_uidpolicy(struct userconf *cnf, intmax_t id);
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static uid_t pw_gidpolicy(struct userconf *cnf, char *grname, char *nam,
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gid_t prefer, bool dryrun);
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static char *pw_homepolicy(struct userconf * cnf, char *homedir,
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const char *user);
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static char *pw_shellpolicy(struct userconf * cnf);
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static char *pw_password(struct userconf * cnf, char const * user,
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bool dryrun);
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static char *shell_path(char const * path, char *shells[], char *sh);
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static void rmat(uid_t uid);
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static void
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mkdir_home_parents(int dfd, const char *dir)
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{
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struct stat st;
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char *dirs, *tmp;
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if (*dir != '/')
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errx(EX_DATAERR, "invalid base directory for home '%s'", dir);
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dir++;
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if (fstatat(dfd, dir, &st, 0) != -1) {
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if (S_ISDIR(st.st_mode))
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return;
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errx(EX_OSFILE, "root home `/%s' is not a directory", dir);
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}
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dirs = strdup(dir);
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if (dirs == NULL)
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errx(EX_UNAVAILABLE, "out of memory");
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tmp = strrchr(dirs, '/');
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if (tmp == NULL) {
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free(dirs);
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return;
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}
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tmp[0] = '\0';
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/*
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* This is a kludge especially for Joerg :)
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* If the home directory would be created in the root partition, then
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* we really create it under /usr which is likely to have more space.
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* But we create a symlink from cnf->home -> "/usr" -> cnf->home
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*/
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if (strchr(dirs, '/') == NULL) {
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asprintf(&tmp, "usr/%s", dirs);
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if (tmp == NULL)
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errx(EX_UNAVAILABLE, "out of memory");
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if (mkdirat(dfd, tmp, _DEF_DIRMODE) != -1 || errno == EEXIST) {
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fchownat(dfd, tmp, 0, 0, 0);
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symlinkat(tmp, dfd, dirs);
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}
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free(tmp);
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}
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tmp = dirs;
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if (fstatat(dfd, dirs, &st, 0) == -1) {
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while ((tmp = strchr(tmp + 1, '/')) != NULL) {
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*tmp = '\0';
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if (fstatat(dfd, dirs, &st, 0) == -1) {
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if (mkdirat(dfd, dirs, _DEF_DIRMODE) == -1)
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err(EX_OSFILE, "'%s' (root home parent) is not a directory", dirs);
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}
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*tmp = '/';
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}
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}
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if (fstatat(dfd, dirs, &st, 0) == -1) {
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if (mkdirat(dfd, dirs, _DEF_DIRMODE) == -1)
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err(EX_OSFILE, "'%s' (root home parent) is not a directory", dirs);
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fchownat(dfd, dirs, 0, 0, 0);
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}
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free(dirs);
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}
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static void
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create_and_populate_homedir(struct userconf *cnf, struct passwd *pwd,
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const char *skeldir, mode_t homemode, bool update)
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{
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int skelfd = -1;
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/* Create home parents directories */
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mkdir_home_parents(conf.rootfd, pwd->pw_dir);
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if (skeldir != NULL && *skeldir != '\0') {
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if (*skeldir == '/')
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skeldir++;
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skelfd = openat(conf.rootfd, skeldir, O_DIRECTORY|O_CLOEXEC);
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}
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copymkdir(conf.rootfd, pwd->pw_dir, skelfd, homemode, pwd->pw_uid,
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pwd->pw_gid, 0);
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pw_log(cnf, update ? M_UPDATE : M_ADD, W_USER, "%s(%ju) home %s made",
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pwd->pw_name, (uintmax_t)pwd->pw_uid, pwd->pw_dir);
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}
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static int
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pw_set_passwd(struct passwd *pwd, int fd, bool precrypted, bool update)
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{
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int b, istty;
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struct termios t, n;
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login_cap_t *lc;
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char line[_PASSWORD_LEN+1];
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char *p;
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if (fd == '-') {
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if (!pwd->pw_passwd || *pwd->pw_passwd != '*') {
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pwd->pw_passwd = "*"; /* No access */
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return (1);
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}
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return (0);
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}
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if ((istty = isatty(fd))) {
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if (tcgetattr(fd, &t) == -1)
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istty = 0;
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else {
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n = t;
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n.c_lflag &= ~(ECHO);
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tcsetattr(fd, TCSANOW, &n);
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printf("%s%spassword for user %s:",
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update ? "new " : "",
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precrypted ? "encrypted " : "",
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pwd->pw_name);
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fflush(stdout);
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}
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}
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b = read(fd, line, sizeof(line) - 1);
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if (istty) { /* Restore state */
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tcsetattr(fd, TCSANOW, &t);
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fputc('\n', stdout);
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fflush(stdout);
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}
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if (b < 0)
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err(EX_IOERR, "-%c file descriptor",
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precrypted ? 'H' : 'h');
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line[b] = '\0';
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if ((p = strpbrk(line, "\r\n")) != NULL)
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*p = '\0';
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if (!*line)
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errx(EX_DATAERR, "empty password read on file descriptor %d",
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fd);
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if (precrypted) {
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if (strchr(line, ':') != NULL)
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errx(EX_DATAERR, "bad encrypted password");
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pwd->pw_passwd = strdup(line);
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} else {
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lc = login_getpwclass(pwd);
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if (lc == NULL ||
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login_setcryptfmt(lc, "sha512", NULL) == NULL)
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warn("setting crypt(3) format");
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login_close(lc);
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pwd->pw_passwd = pw_pwcrypt(line);
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}
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return (1);
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}
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static void
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perform_chgpwent(const char *name, struct passwd *pwd, char *nispasswd)
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{
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int rc;
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struct passwd *nispwd;
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/* duplicate for nis so that chgpwent is not modifying before NIS */
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if (nispasswd && *nispasswd == '/')
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nispwd = pw_dup(pwd);
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rc = chgpwent(name, pwd);
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if (rc == -1)
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errx(EX_IOERR, "user '%s' does not exist (NIS?)", pwd->pw_name);
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else if (rc != 0)
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err(EX_IOERR, "passwd file update");
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if (nispasswd && *nispasswd == '/') {
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rc = chgnispwent(nispasswd, name, nispwd);
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if (rc == -1)
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warn("User '%s' not found in NIS passwd", pwd->pw_name);
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else if (rc != 0)
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warn("NIS passwd update");
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/* NOTE: NIS-only update errors are not fatal */
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}
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}
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/*
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* The M_LOCK and M_UNLOCK functions simply add or remove
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* a "*LOCKED*" prefix from in front of the password to
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* prevent it decoding correctly, and therefore prevents
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* access. Of course, this only prevents access via
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* password authentication (not ssh, kerberos or any
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* other method that does not use the UNIX password) but
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* that is a known limitation.
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*/
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static int
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pw_userlock(char *arg1, int mode)
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{
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struct passwd *pwd = NULL;
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char *passtmp = NULL;
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char *name;
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bool locked = false;
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uid_t id = (uid_t)-1;
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if (geteuid() != 0)
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errx(EX_NOPERM, "you must be root");
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if (arg1 == NULL)
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errx(EX_DATAERR, "username or id required");
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name = arg1;
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if (arg1[strspn(name, "0123456789")] == '\0')
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id = pw_checkid(name, UID_MAX);
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pwd = GETPWNAM(pw_checkname(name, 0));
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if (pwd == NULL && id != (uid_t)-1) {
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pwd = GETPWUID(id);
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if (pwd != NULL)
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name = pwd->pw_name;
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}
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if (pwd == NULL) {
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if (id == (uid_t)-1)
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errx(EX_NOUSER, "no such name or uid `%ju'", (uintmax_t) id);
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errx(EX_NOUSER, "no such user `%s'", name);
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}
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if (name == NULL)
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name = pwd->pw_name;
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if (strncmp(pwd->pw_passwd, locked_str, sizeof(locked_str) -1) == 0)
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locked = true;
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if (mode == M_LOCK && locked)
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errx(EX_DATAERR, "user '%s' is already locked", pwd->pw_name);
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if (mode == M_UNLOCK && !locked)
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errx(EX_DATAERR, "user '%s' is not locked", pwd->pw_name);
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if (mode == M_LOCK) {
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asprintf(&passtmp, "%s%s", locked_str, pwd->pw_passwd);
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if (passtmp == NULL) /* disaster */
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errx(EX_UNAVAILABLE, "out of memory");
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pwd->pw_passwd = passtmp;
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} else {
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pwd->pw_passwd += sizeof(locked_str)-1;
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}
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perform_chgpwent(name, pwd, NULL);
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free(passtmp);
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return (EXIT_SUCCESS);
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}
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static uid_t
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pw_uidpolicy(struct userconf * cnf, intmax_t id)
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{
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struct passwd *pwd;
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struct bitmap bm;
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uid_t uid = (uid_t) - 1;
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/*
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* Check the given uid, if any
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*/
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if (id >= 0) {
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uid = (uid_t) id;
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if ((pwd = GETPWUID(uid)) != NULL && conf.checkduplicate)
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errx(EX_DATAERR, "uid `%ju' has already been allocated",
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(uintmax_t)pwd->pw_uid);
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return (uid);
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}
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/*
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* We need to allocate the next available uid under one of
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* two policies a) Grab the first unused uid b) Grab the
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* highest possible unused uid
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*/
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if (cnf->min_uid >= cnf->max_uid) { /* Sanity
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* claus^H^H^H^Hheck */
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cnf->min_uid = 1000;
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cnf->max_uid = 32000;
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}
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bm = bm_alloc(cnf->max_uid - cnf->min_uid + 1);
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/*
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* Now, let's fill the bitmap from the password file
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*/
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SETPWENT();
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while ((pwd = GETPWENT()) != NULL)
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if (pwd->pw_uid >= (uid_t) cnf->min_uid && pwd->pw_uid <= (uid_t) cnf->max_uid)
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bm_setbit(&bm, pwd->pw_uid - cnf->min_uid);
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ENDPWENT();
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/*
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* Then apply the policy, with fallback to reuse if necessary
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*/
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if (cnf->reuse_uids || (uid = (uid_t) (bm_lastset(&bm) + cnf->min_uid + 1)) > cnf->max_uid)
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uid = (uid_t) (bm_firstunset(&bm) + cnf->min_uid);
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/*
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* Another sanity check
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*/
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if (uid < cnf->min_uid || uid > cnf->max_uid)
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errx(EX_SOFTWARE, "unable to allocate a new uid - range fully used");
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bm_dealloc(&bm);
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return (uid);
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}
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static uid_t
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pw_gidpolicy(struct userconf *cnf, char *grname, char *nam, gid_t prefer, bool dryrun)
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{
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struct group *grp;
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gid_t gid = (uid_t) - 1;
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/*
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* Check the given gid, if any
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*/
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SETGRENT();
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if (grname) {
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if ((grp = GETGRNAM(grname)) == NULL) {
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gid = pw_checkid(grname, GID_MAX);
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grp = GETGRGID(gid);
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}
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gid = grp->gr_gid;
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} else if ((grp = GETGRNAM(nam)) != NULL &&
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(grp->gr_mem == NULL || grp->gr_mem[0] == NULL)) {
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gid = grp->gr_gid; /* Already created? Use it anyway... */
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} else {
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intmax_t grid = -1;
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/*
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* We need to auto-create a group with the user's name. We
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* can send all the appropriate output to our sister routine
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* bit first see if we can create a group with gid==uid so we
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* can keep the user and group ids in sync. We purposely do
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* NOT check the gid range if we can force the sync. If the
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* user's name dups an existing group, then the group add
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* function will happily handle that case for us and exit.
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*/
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if (GETGRGID(prefer) == NULL)
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grid = prefer;
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if (dryrun) {
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gid = pw_groupnext(cnf, true);
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} else {
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if (grid == -1)
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grid = pw_groupnext(cnf, true);
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groupadd(cnf, nam, grid, NULL, -1, false, false, false);
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if ((grp = GETGRNAM(nam)) != NULL)
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gid = grp->gr_gid;
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}
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}
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ENDGRENT();
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return (gid);
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}
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static char *
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pw_homepolicy(struct userconf * cnf, char *homedir, const char *user)
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{
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static char home[128];
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if (homedir)
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return (homedir);
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if (cnf->home == NULL || *cnf->home == '\0')
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errx(EX_CONFIG, "no base home directory set");
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snprintf(home, sizeof(home), "%s/%s", cnf->home, user);
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return (home);
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}
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static char *
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shell_path(char const * path, char *shells[], char *sh)
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{
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if (sh != NULL && (*sh == '/' || *sh == '\0'))
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return sh; /* specified full path or forced none */
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else {
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char *p;
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char paths[_UC_MAXLINE];
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/*
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* We need to search paths
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*/
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strlcpy(paths, path, sizeof(paths));
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for (p = strtok(paths, ": \t\r\n"); p != NULL; p = strtok(NULL, ": \t\r\n")) {
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int i;
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static char shellpath[256];
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if (sh != NULL) {
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snprintf(shellpath, sizeof(shellpath), "%s/%s", p, sh);
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if (access(shellpath, X_OK) == 0)
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return shellpath;
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} else
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for (i = 0; i < _UC_MAXSHELLS && shells[i] != NULL; i++) {
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snprintf(shellpath, sizeof(shellpath), "%s/%s", p, shells[i]);
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if (access(shellpath, X_OK) == 0)
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return shellpath;
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}
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}
|
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if (sh == NULL)
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errx(EX_OSFILE, "can't find shell `%s' in shell paths", sh);
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errx(EX_CONFIG, "no default shell available or defined");
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return NULL;
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}
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}
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static char *
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pw_shellpolicy(struct userconf * cnf)
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{
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return shell_path(cnf->shelldir, cnf->shells, cnf->shell_default);
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}
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#define SALTSIZE 32
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|
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static char const chars[] = "0123456789abcdefghijklmnopqrstuvwxyzABCDEFGHIJKLMNOPQRSTUVWXYZ./";
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|
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char *
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pw_pwcrypt(char *password)
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{
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int i;
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char salt[SALTSIZE + 1];
|
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char *cryptpw;
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static char buf[256];
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size_t pwlen;
|
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/*
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* Calculate a salt value
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|
*/
|
|
for (i = 0; i < SALTSIZE; i++)
|
|
salt[i] = chars[arc4random_uniform(sizeof(chars) - 1)];
|
|
salt[SALTSIZE] = '\0';
|
|
|
|
cryptpw = crypt(password, salt);
|
|
if (cryptpw == NULL)
|
|
errx(EX_CONFIG, "crypt(3) failure");
|
|
pwlen = strlcpy(buf, cryptpw, sizeof(buf));
|
|
assert(pwlen < sizeof(buf));
|
|
return (buf);
|
|
}
|
|
|
|
static char *
|
|
pw_password(struct userconf * cnf, char const * user, bool dryrun)
|
|
{
|
|
int i, l;
|
|
char pwbuf[32];
|
|
|
|
switch (cnf->default_password) {
|
|
case P_NONE: /* No password at all! */
|
|
return "";
|
|
case P_RANDOM: /* Random password */
|
|
l = (arc4random() % 8 + 8); /* 8 - 16 chars */
|
|
for (i = 0; i < l; i++)
|
|
pwbuf[i] = chars[arc4random_uniform(sizeof(chars)-1)];
|
|
pwbuf[i] = '\0';
|
|
|
|
/*
|
|
* We give this information back to the user
|
|
*/
|
|
if (conf.fd == -1 && !dryrun) {
|
|
if (isatty(STDOUT_FILENO))
|
|
printf("Password for '%s' is: ", user);
|
|
printf("%s\n", pwbuf);
|
|
fflush(stdout);
|
|
}
|
|
break;
|
|
case P_YES: /* user's name */
|
|
strlcpy(pwbuf, user, sizeof(pwbuf));
|
|
break;
|
|
case P_NO: /* No login - default */
|
|
/* FALLTHROUGH */
|
|
default:
|
|
return "*";
|
|
}
|
|
return pw_pwcrypt(pwbuf);
|
|
}
|
|
|
|
static int
|
|
print_user(struct passwd * pwd, bool pretty, bool v7)
|
|
{
|
|
int j;
|
|
char *p;
|
|
struct group *grp = GETGRGID(pwd->pw_gid);
|
|
char uname[60] = "User &", office[60] = "[None]",
|
|
wphone[60] = "[None]", hphone[60] = "[None]";
|
|
char acexpire[32] = "[None]", pwexpire[32] = "[None]";
|
|
struct tm * tptr;
|
|
|
|
if (!pretty) {
|
|
p = v7 ? pw_make_v7(pwd) : pw_make(pwd);
|
|
printf("%s\n", p);
|
|
free(p);
|
|
return (EXIT_SUCCESS);
|
|
}
|
|
|
|
if ((p = strtok(pwd->pw_gecos, ",")) != NULL) {
|
|
strlcpy(uname, p, sizeof(uname));
|
|
if ((p = strtok(NULL, ",")) != NULL) {
|
|
strlcpy(office, p, sizeof(office));
|
|
if ((p = strtok(NULL, ",")) != NULL) {
|
|
strlcpy(wphone, p, sizeof(wphone));
|
|
if ((p = strtok(NULL, "")) != NULL) {
|
|
strlcpy(hphone, p, sizeof(hphone));
|
|
}
|
|
}
|
|
}
|
|
}
|
|
/*
|
|
* Handle '&' in gecos field
|
|
*/
|
|
if ((p = strchr(uname, '&')) != NULL) {
|
|
int l = strlen(pwd->pw_name);
|
|
int m = strlen(p);
|
|
|
|
memmove(p + l, p + 1, m);
|
|
memmove(p, pwd->pw_name, l);
|
|
*p = (char) toupper((unsigned char)*p);
|
|
}
|
|
if (pwd->pw_expire > (time_t)0 && (tptr = localtime(&pwd->pw_expire)) != NULL)
|
|
strftime(acexpire, sizeof acexpire, "%c", tptr);
|
|
if (pwd->pw_change > (time_t)0 && (tptr = localtime(&pwd->pw_change)) != NULL)
|
|
strftime(pwexpire, sizeof pwexpire, "%c", tptr);
|
|
printf("Login Name: %-15s #%-12ju Group: %-15s #%ju\n"
|
|
" Full Name: %s\n"
|
|
" Home: %-26.26s Class: %s\n"
|
|
" Shell: %-26.26s Office: %s\n"
|
|
"Work Phone: %-26.26s Home Phone: %s\n"
|
|
"Acc Expire: %-26.26s Pwd Expire: %s\n",
|
|
pwd->pw_name, (uintmax_t)pwd->pw_uid,
|
|
grp ? grp->gr_name : "(invalid)", (uintmax_t)pwd->pw_gid,
|
|
uname, pwd->pw_dir, pwd->pw_class,
|
|
pwd->pw_shell, office, wphone, hphone,
|
|
acexpire, pwexpire);
|
|
SETGRENT();
|
|
j = 0;
|
|
while ((grp=GETGRENT()) != NULL) {
|
|
int i = 0;
|
|
if (grp->gr_mem != NULL) {
|
|
while (grp->gr_mem[i] != NULL) {
|
|
if (strcmp(grp->gr_mem[i], pwd->pw_name)==0) {
|
|
printf(j++ == 0 ? " Groups: %s" : ",%s", grp->gr_name);
|
|
break;
|
|
}
|
|
++i;
|
|
}
|
|
}
|
|
}
|
|
ENDGRENT();
|
|
printf("%s", j ? "\n" : "");
|
|
return (EXIT_SUCCESS);
|
|
}
|
|
|
|
char *
|
|
pw_checkname(char *name, int gecos)
|
|
{
|
|
char showch[8];
|
|
const char *badchars, *ch, *showtype;
|
|
int reject;
|
|
|
|
ch = name;
|
|
reject = 0;
|
|
if (gecos) {
|
|
/* See if the name is valid as a gecos (comment) field. */
|
|
badchars = ":";
|
|
showtype = "gecos field";
|
|
} else {
|
|
/* See if the name is valid as a userid or group. */
|
|
badchars = " ,\t:+&#%$^()!@~*?<>=|\\/\"";
|
|
showtype = "userid/group name";
|
|
/* Userids and groups can not have a leading '-'. */
|
|
if (*ch == '-')
|
|
reject = 1;
|
|
}
|
|
if (!reject) {
|
|
while (*ch) {
|
|
if (strchr(badchars, *ch) != NULL ||
|
|
(!gecos && *ch < ' ') ||
|
|
*ch == 127) {
|
|
reject = 1;
|
|
break;
|
|
}
|
|
/* 8-bit characters are only allowed in GECOS fields */
|
|
if (!gecos && (*ch & 0x80)) {
|
|
reject = 1;
|
|
break;
|
|
}
|
|
ch++;
|
|
}
|
|
}
|
|
/*
|
|
* A `$' is allowed as the final character for userids and groups,
|
|
* mainly for the benefit of samba.
|
|
*/
|
|
if (reject && !gecos) {
|
|
if (*ch == '$' && *(ch + 1) == '\0') {
|
|
reject = 0;
|
|
ch++;
|
|
}
|
|
}
|
|
if (reject) {
|
|
snprintf(showch, sizeof(showch), (*ch >= ' ' && *ch < 127)
|
|
? "`%c'" : "0x%02x", *ch);
|
|
errx(EX_DATAERR, "invalid character %s at position %td in %s",
|
|
showch, (ch - name), showtype);
|
|
}
|
|
if (!gecos && (ch - name) > LOGNAMESIZE)
|
|
errx(EX_USAGE, "name too long `%s' (max is %d)", name,
|
|
LOGNAMESIZE);
|
|
|
|
return (name);
|
|
}
|
|
|
|
static void
|
|
rmat(uid_t uid)
|
|
{
|
|
DIR *d = opendir("/var/at/jobs");
|
|
|
|
if (d != NULL) {
|
|
struct dirent *e;
|
|
|
|
while ((e = readdir(d)) != NULL) {
|
|
struct stat st;
|
|
|
|
if (strncmp(e->d_name, ".lock", 5) != 0 &&
|
|
stat(e->d_name, &st) == 0 &&
|
|
!S_ISDIR(st.st_mode) &&
|
|
st.st_uid == uid) {
|
|
char tmp[MAXPATHLEN];
|
|
|
|
snprintf(tmp, sizeof(tmp), "/usr/bin/atrm %s",
|
|
e->d_name);
|
|
system(tmp);
|
|
}
|
|
}
|
|
closedir(d);
|
|
}
|
|
}
|
|
|
|
int
|
|
pw_user_next(int argc, char **argv, char *name __unused)
|
|
{
|
|
struct userconf *cnf = NULL;
|
|
const char *cfg = NULL;
|
|
int ch;
|
|
bool quiet = false;
|
|
uid_t next;
|
|
|
|
while ((ch = getopt(argc, argv, "C:q")) != -1) {
|
|
switch (ch) {
|
|
case 'C':
|
|
cfg = optarg;
|
|
break;
|
|
case 'q':
|
|
quiet = true;
|
|
break;
|
|
}
|
|
}
|
|
|
|
if (quiet)
|
|
freopen(_PATH_DEVNULL, "w", stderr);
|
|
|
|
cnf = get_userconfig(cfg);
|
|
|
|
next = pw_uidpolicy(cnf, -1);
|
|
|
|
printf("%ju:", (uintmax_t)next);
|
|
pw_groupnext(cnf, quiet);
|
|
|
|
return (EXIT_SUCCESS);
|
|
}
|
|
|
|
int
|
|
pw_user_show(int argc, char **argv, char *arg1)
|
|
{
|
|
struct passwd *pwd = NULL;
|
|
char *name = NULL;
|
|
intmax_t id = -1;
|
|
int ch;
|
|
bool all = false;
|
|
bool pretty = false;
|
|
bool force = false;
|
|
bool v7 = false;
|
|
bool quiet = false;
|
|
|
|
if (arg1 != NULL) {
|
|
if (arg1[strspn(arg1, "0123456789")] == '\0')
|
|
id = pw_checkid(arg1, UID_MAX);
|
|
else
|
|
name = arg1;
|
|
}
|
|
|
|
while ((ch = getopt(argc, argv, "C:qn:u:FPa7")) != -1) {
|
|
switch (ch) {
|
|
case 'C':
|
|
/* ignore compatibility */
|
|
break;
|
|
case 'q':
|
|
quiet = true;
|
|
break;
|
|
case 'n':
|
|
name = optarg;
|
|
break;
|
|
case 'u':
|
|
id = pw_checkid(optarg, UID_MAX);
|
|
break;
|
|
case 'F':
|
|
force = true;
|
|
break;
|
|
case 'P':
|
|
pretty = true;
|
|
break;
|
|
case 'a':
|
|
all = true;
|
|
break;
|
|
case '7':
|
|
v7 = true;
|
|
break;
|
|
}
|
|
}
|
|
|
|
if (quiet)
|
|
freopen(_PATH_DEVNULL, "w", stderr);
|
|
|
|
if (all) {
|
|
SETPWENT();
|
|
while ((pwd = GETPWENT()) != NULL)
|
|
print_user(pwd, pretty, v7);
|
|
ENDPWENT();
|
|
return (EXIT_SUCCESS);
|
|
}
|
|
|
|
if (id < 0 && name == NULL)
|
|
errx(EX_DATAERR, "username or id required");
|
|
|
|
pwd = (name != NULL) ? GETPWNAM(pw_checkname(name, 0)) : GETPWUID(id);
|
|
if (pwd == NULL) {
|
|
if (force) {
|
|
pwd = &fakeuser;
|
|
} else {
|
|
if (name == NULL)
|
|
errx(EX_NOUSER, "no such uid `%ju'",
|
|
(uintmax_t) id);
|
|
errx(EX_NOUSER, "no such user `%s'", name);
|
|
}
|
|
}
|
|
|
|
return (print_user(pwd, pretty, v7));
|
|
}
|
|
|
|
int
|
|
pw_user_del(int argc, char **argv, char *arg1)
|
|
{
|
|
struct userconf *cnf = NULL;
|
|
struct passwd *pwd = NULL;
|
|
struct group *gr, *grp;
|
|
char *name = NULL;
|
|
char grname[MAXLOGNAME];
|
|
char *nispasswd = NULL;
|
|
char file[MAXPATHLEN];
|
|
char home[MAXPATHLEN];
|
|
const char *cfg = NULL;
|
|
struct stat st;
|
|
intmax_t id = -1;
|
|
int ch, rc;
|
|
bool nis = false;
|
|
bool deletehome = false;
|
|
bool quiet = false;
|
|
|
|
if (arg1 != NULL) {
|
|
if (arg1[strspn(arg1, "0123456789")] == '\0')
|
|
id = pw_checkid(arg1, UID_MAX);
|
|
else
|
|
name = arg1;
|
|
}
|
|
|
|
while ((ch = getopt(argc, argv, "C:qn:u:rYy:")) != -1) {
|
|
switch (ch) {
|
|
case 'C':
|
|
cfg = optarg;
|
|
break;
|
|
case 'q':
|
|
quiet = true;
|
|
break;
|
|
case 'n':
|
|
name = optarg;
|
|
break;
|
|
case 'u':
|
|
id = pw_checkid(optarg, UID_MAX);
|
|
break;
|
|
case 'r':
|
|
deletehome = true;
|
|
break;
|
|
case 'y':
|
|
nispasswd = optarg;
|
|
break;
|
|
case 'Y':
|
|
nis = true;
|
|
break;
|
|
}
|
|
}
|
|
|
|
if (quiet)
|
|
freopen(_PATH_DEVNULL, "w", stderr);
|
|
|
|
if (id < 0 && name == NULL)
|
|
errx(EX_DATAERR, "username or id required");
|
|
|
|
cnf = get_userconfig(cfg);
|
|
|
|
if (nispasswd == NULL)
|
|
nispasswd = cnf->nispasswd;
|
|
|
|
pwd = (name != NULL) ? GETPWNAM(pw_checkname(name, 0)) : GETPWUID(id);
|
|
if (pwd == NULL) {
|
|
if (name == NULL)
|
|
errx(EX_NOUSER, "no such uid `%ju'", (uintmax_t) id);
|
|
errx(EX_NOUSER, "no such user `%s'", name);
|
|
}
|
|
|
|
if (PWF._altdir == PWF_REGULAR &&
|
|
((pwd->pw_fields & _PWF_SOURCE) != _PWF_FILES)) {
|
|
if ((pwd->pw_fields & _PWF_SOURCE) == _PWF_NIS) {
|
|
if (!nis && nispasswd && *nispasswd != '/')
|
|
errx(EX_NOUSER, "Cannot remove NIS user `%s'",
|
|
name);
|
|
} else {
|
|
errx(EX_NOUSER, "Cannot remove non local user `%s'",
|
|
name);
|
|
}
|
|
}
|
|
|
|
id = pwd->pw_uid;
|
|
if (name == NULL)
|
|
name = pwd->pw_name;
|
|
|
|
if (strcmp(pwd->pw_name, "root") == 0)
|
|
errx(EX_DATAERR, "cannot remove user 'root'");
|
|
|
|
if (!PWALTDIR()) {
|
|
/* Remove crontabs */
|
|
snprintf(file, sizeof(file), "/var/cron/tabs/%s", pwd->pw_name);
|
|
if (access(file, F_OK) == 0) {
|
|
snprintf(file, sizeof(file), "crontab -u %s -r",
|
|
pwd->pw_name);
|
|
system(file);
|
|
}
|
|
}
|
|
|
|
/*
|
|
* Save these for later, since contents of pwd may be
|
|
* invalidated by deletion
|
|
*/
|
|
snprintf(file, sizeof(file), "%s/%s", _PATH_MAILDIR, pwd->pw_name);
|
|
strlcpy(home, pwd->pw_dir, sizeof(home));
|
|
gr = GETGRGID(pwd->pw_gid);
|
|
if (gr != NULL)
|
|
strlcpy(grname, gr->gr_name, LOGNAMESIZE);
|
|
else
|
|
grname[0] = '\0';
|
|
|
|
rc = delpwent(pwd);
|
|
if (rc == -1)
|
|
err(EX_IOERR, "user '%s' does not exist", pwd->pw_name);
|
|
else if (rc != 0)
|
|
err(EX_IOERR, "passwd update");
|
|
|
|
if (nis && nispasswd && *nispasswd=='/') {
|
|
rc = delnispwent(nispasswd, name);
|
|
if (rc == -1)
|
|
warnx("WARNING: user '%s' does not exist in NIS passwd",
|
|
pwd->pw_name);
|
|
else if (rc != 0)
|
|
warn("WARNING: NIS passwd update");
|
|
}
|
|
|
|
grp = GETGRNAM(name);
|
|
if (grp != NULL &&
|
|
(grp->gr_mem == NULL || *grp->gr_mem == NULL) &&
|
|
strcmp(name, grname) == 0)
|
|
delgrent(GETGRNAM(name));
|
|
SETGRENT();
|
|
while ((grp = GETGRENT()) != NULL) {
|
|
int i, j;
|
|
char group[MAXLOGNAME];
|
|
if (grp->gr_mem == NULL)
|
|
continue;
|
|
|
|
for (i = 0; grp->gr_mem[i] != NULL; i++) {
|
|
if (strcmp(grp->gr_mem[i], name) != 0)
|
|
continue;
|
|
|
|
for (j = i; grp->gr_mem[j] != NULL; j++)
|
|
grp->gr_mem[j] = grp->gr_mem[j+1];
|
|
strlcpy(group, grp->gr_name, MAXLOGNAME);
|
|
chggrent(group, grp);
|
|
}
|
|
}
|
|
ENDGRENT();
|
|
|
|
pw_log(cnf, M_DELETE, W_USER, "%s(%ju) account removed", name,
|
|
(uintmax_t)id);
|
|
|
|
/* Remove mail file */
|
|
if (PWALTDIR() != PWF_ALT)
|
|
unlinkat(conf.rootfd, file + 1, 0);
|
|
|
|
/* Remove at jobs */
|
|
if (!PWALTDIR() && getpwuid(id) == NULL)
|
|
rmat(id);
|
|
|
|
/* Remove home directory and contents */
|
|
if (PWALTDIR() != PWF_ALT && deletehome && *home == '/' &&
|
|
GETPWUID(id) == NULL &&
|
|
fstatat(conf.rootfd, home + 1, &st, 0) != -1) {
|
|
rm_r(conf.rootfd, home, id);
|
|
pw_log(cnf, M_DELETE, W_USER, "%s(%ju) home '%s' %s"
|
|
"removed", name, (uintmax_t)id, home,
|
|
fstatat(conf.rootfd, home + 1, &st, 0) == -1 ? "" : "not "
|
|
"completely ");
|
|
}
|
|
|
|
return (EXIT_SUCCESS);
|
|
}
|
|
|
|
int
|
|
pw_user_lock(int argc, char **argv, char *arg1)
|
|
{
|
|
int ch;
|
|
|
|
while ((ch = getopt(argc, argv, "Cq")) != -1) {
|
|
switch (ch) {
|
|
case 'C':
|
|
case 'q':
|
|
/* compatibility */
|
|
break;
|
|
}
|
|
}
|
|
|
|
return (pw_userlock(arg1, M_LOCK));
|
|
}
|
|
|
|
int
|
|
pw_user_unlock(int argc, char **argv, char *arg1)
|
|
{
|
|
int ch;
|
|
|
|
while ((ch = getopt(argc, argv, "Cq")) != -1) {
|
|
switch (ch) {
|
|
case 'C':
|
|
case 'q':
|
|
/* compatibility */
|
|
break;
|
|
}
|
|
}
|
|
|
|
return (pw_userlock(arg1, M_UNLOCK));
|
|
}
|
|
|
|
static struct group *
|
|
group_from_name_or_id(char *name)
|
|
{
|
|
const char *errstr = NULL;
|
|
struct group *grp;
|
|
uintmax_t id;
|
|
|
|
if ((grp = GETGRNAM(name)) == NULL) {
|
|
id = strtounum(name, 0, GID_MAX, &errstr);
|
|
if (errstr)
|
|
errx(EX_NOUSER, "group `%s' does not exist", name);
|
|
grp = GETGRGID(id);
|
|
if (grp == NULL)
|
|
errx(EX_NOUSER, "group `%s' does not exist", name);
|
|
}
|
|
|
|
return (grp);
|
|
}
|
|
|
|
static void
|
|
split_groups(StringList **groups, char *groupsstr)
|
|
{
|
|
struct group *grp;
|
|
char *p;
|
|
char tok[] = ", \t";
|
|
|
|
if (*groups == NULL)
|
|
*groups = sl_init();
|
|
for (p = strtok(groupsstr, tok); p != NULL; p = strtok(NULL, tok)) {
|
|
grp = group_from_name_or_id(p);
|
|
sl_add(*groups, newstr(grp->gr_name));
|
|
}
|
|
}
|
|
|
|
static void
|
|
validate_grname(struct userconf *cnf, char *group)
|
|
{
|
|
struct group *grp;
|
|
|
|
if (group == NULL || *group == '\0') {
|
|
cnf->default_group = "";
|
|
return;
|
|
}
|
|
grp = group_from_name_or_id(group);
|
|
cnf->default_group = newstr(grp->gr_name);
|
|
}
|
|
|
|
static mode_t
|
|
validate_mode(char *mode)
|
|
{
|
|
mode_t m;
|
|
void *set;
|
|
|
|
if ((set = setmode(mode)) == NULL)
|
|
errx(EX_DATAERR, "invalid directory creation mode '%s'", mode);
|
|
|
|
m = getmode(set, _DEF_DIRMODE);
|
|
free(set);
|
|
return (m);
|
|
}
|
|
|
|
static long
|
|
validate_expire(char *str, int opt)
|
|
{
|
|
if (!numerics(str))
|
|
errx(EX_DATAERR, "-%c argument must be numeric "
|
|
"when setting defaults: %s", (char)opt, str);
|
|
return strtol(str, NULL, 0);
|
|
}
|
|
|
|
static void
|
|
mix_config(struct userconf *cmdcnf, struct userconf *cfg)
|
|
{
|
|
|
|
if (cmdcnf->default_password < 0)
|
|
cmdcnf->default_password = cfg->default_password;
|
|
if (cmdcnf->reuse_uids == 0)
|
|
cmdcnf->reuse_uids = cfg->reuse_uids;
|
|
if (cmdcnf->reuse_gids == 0)
|
|
cmdcnf->reuse_gids = cfg->reuse_gids;
|
|
if (cmdcnf->nispasswd == NULL)
|
|
cmdcnf->nispasswd = cfg->nispasswd;
|
|
if (cmdcnf->dotdir == NULL)
|
|
cmdcnf->dotdir = cfg->dotdir;
|
|
if (cmdcnf->newmail == NULL)
|
|
cmdcnf->newmail = cfg->newmail;
|
|
if (cmdcnf->logfile == NULL)
|
|
cmdcnf->logfile = cfg->logfile;
|
|
if (cmdcnf->home == NULL)
|
|
cmdcnf->home = cfg->home;
|
|
if (cmdcnf->homemode == 0)
|
|
cmdcnf->homemode = cfg->homemode;
|
|
if (cmdcnf->shelldir == NULL)
|
|
cmdcnf->shelldir = cfg->shelldir;
|
|
if (cmdcnf->shells == NULL)
|
|
cmdcnf->shells = cfg->shells;
|
|
if (cmdcnf->shell_default == NULL)
|
|
cmdcnf->shell_default = cfg->shell_default;
|
|
if (cmdcnf->default_group == NULL)
|
|
cmdcnf->default_group = cfg->default_group;
|
|
if (cmdcnf->groups == NULL)
|
|
cmdcnf->groups = cfg->groups;
|
|
if (cmdcnf->default_class == NULL)
|
|
cmdcnf->default_class = cfg->default_class;
|
|
if (cmdcnf->min_uid == 0)
|
|
cmdcnf->min_uid = cfg->min_uid;
|
|
if (cmdcnf->max_uid == 0)
|
|
cmdcnf->max_uid = cfg->max_uid;
|
|
if (cmdcnf->min_gid == 0)
|
|
cmdcnf->min_gid = cfg->min_gid;
|
|
if (cmdcnf->max_gid == 0)
|
|
cmdcnf->max_gid = cfg->max_gid;
|
|
if (cmdcnf->expire_days < 0)
|
|
cmdcnf->expire_days = cfg->expire_days;
|
|
if (cmdcnf->password_days < 0)
|
|
cmdcnf->password_days = cfg->password_days;
|
|
}
|
|
|
|
int
|
|
pw_user_add(int argc, char **argv, char *arg1)
|
|
{
|
|
struct userconf *cnf, *cmdcnf;
|
|
struct passwd *pwd;
|
|
struct group *grp;
|
|
struct stat st;
|
|
char args[] = "C:qn:u:c:d:e:p:g:G:mM:k:s:oL:i:w:h:H:Db:NPy:Y";
|
|
char line[_PASSWORD_LEN+1], path[MAXPATHLEN];
|
|
char *gecos, *homedir, *skel, *walk, *userid, *groupid, *grname;
|
|
char *default_passwd, *name, *p;
|
|
const char *cfg = NULL;
|
|
login_cap_t *lc;
|
|
FILE *pfp, *fp;
|
|
intmax_t id = -1;
|
|
time_t now;
|
|
int rc, ch, fd = -1;
|
|
size_t i;
|
|
bool dryrun, nis, pretty, quiet, createhome, precrypted, genconf;
|
|
|
|
dryrun = nis = pretty = quiet = createhome = precrypted = false;
|
|
genconf = false;
|
|
gecos = homedir = skel = userid = groupid = default_passwd = NULL;
|
|
grname = name = NULL;
|
|
|
|
if ((cmdcnf = calloc(1, sizeof(struct userconf))) == NULL)
|
|
err(EXIT_FAILURE, "calloc()");
|
|
|
|
cmdcnf->default_password = cmdcnf->expire_days = cmdcnf->password_days = -1;
|
|
now = time(NULL);
|
|
|
|
if (arg1 != NULL) {
|
|
if (arg1[strspn(arg1, "0123456789")] == '\0')
|
|
id = pw_checkid(arg1, UID_MAX);
|
|
else
|
|
name = pw_checkname(arg1, 0);
|
|
}
|
|
|
|
while ((ch = getopt(argc, argv, args)) != -1) {
|
|
switch (ch) {
|
|
case 'C':
|
|
cfg = optarg;
|
|
break;
|
|
case 'q':
|
|
quiet = true;
|
|
break;
|
|
case 'n':
|
|
name = pw_checkname(optarg, 0);
|
|
break;
|
|
case 'u':
|
|
userid = optarg;
|
|
break;
|
|
case 'c':
|
|
gecos = pw_checkname(optarg, 1);
|
|
break;
|
|
case 'd':
|
|
homedir = optarg;
|
|
break;
|
|
case 'e':
|
|
if (genconf)
|
|
cmdcnf->expire_days = validate_expire(optarg, ch);
|
|
else
|
|
cmdcnf->expire_days = parse_date(now, optarg);
|
|
break;
|
|
case 'p':
|
|
if (genconf)
|
|
cmdcnf->password_days = validate_expire(optarg, ch);
|
|
else
|
|
cmdcnf->password_days = parse_date(now, optarg);
|
|
break;
|
|
case 'g':
|
|
validate_grname(cmdcnf, optarg);
|
|
grname = optarg;
|
|
break;
|
|
case 'G':
|
|
split_groups(&cmdcnf->groups, optarg);
|
|
break;
|
|
case 'm':
|
|
createhome = true;
|
|
break;
|
|
case 'M':
|
|
cmdcnf->homemode = validate_mode(optarg);
|
|
break;
|
|
case 'k':
|
|
walk = skel = optarg;
|
|
if (*walk == '/')
|
|
walk++;
|
|
if (fstatat(conf.rootfd, walk, &st, 0) == -1)
|
|
errx(EX_OSFILE, "skeleton `%s' does not "
|
|
"exists", skel);
|
|
if (!S_ISDIR(st.st_mode))
|
|
errx(EX_OSFILE, "skeleton `%s' is not a "
|
|
"directory", skel);
|
|
cmdcnf->dotdir = skel;
|
|
break;
|
|
case 's':
|
|
cmdcnf->shell_default = optarg;
|
|
break;
|
|
case 'o':
|
|
conf.checkduplicate = false;
|
|
break;
|
|
case 'L':
|
|
cmdcnf->default_class = pw_checkname(optarg, 0);
|
|
break;
|
|
case 'i':
|
|
groupid = optarg;
|
|
break;
|
|
case 'w':
|
|
default_passwd = optarg;
|
|
break;
|
|
case 'H':
|
|
if (fd != -1)
|
|
errx(EX_USAGE, "'-h' and '-H' are mutually "
|
|
"exclusive options");
|
|
fd = pw_checkfd(optarg);
|
|
precrypted = true;
|
|
if (fd == '-')
|
|
errx(EX_USAGE, "-H expects a file descriptor");
|
|
break;
|
|
case 'h':
|
|
if (fd != -1)
|
|
errx(EX_USAGE, "'-h' and '-H' are mutually "
|
|
"exclusive options");
|
|
fd = pw_checkfd(optarg);
|
|
break;
|
|
case 'D':
|
|
genconf = true;
|
|
break;
|
|
case 'b':
|
|
cmdcnf->home = optarg;
|
|
break;
|
|
case 'N':
|
|
dryrun = true;
|
|
break;
|
|
case 'P':
|
|
pretty = true;
|
|
break;
|
|
case 'y':
|
|
cmdcnf->nispasswd = optarg;
|
|
break;
|
|
case 'Y':
|
|
nis = true;
|
|
break;
|
|
}
|
|
}
|
|
|
|
if (geteuid() != 0 && ! dryrun)
|
|
errx(EX_NOPERM, "you must be root");
|
|
|
|
if (quiet)
|
|
freopen(_PATH_DEVNULL, "w", stderr);
|
|
|
|
cnf = get_userconfig(cfg);
|
|
|
|
mix_config(cmdcnf, cnf);
|
|
if (default_passwd)
|
|
cmdcnf->default_password = passwd_val(default_passwd,
|
|
cnf->default_password);
|
|
if (genconf) {
|
|
if (name != NULL)
|
|
errx(EX_DATAERR, "can't combine `-D' with `-n name'");
|
|
if (userid != NULL) {
|
|
if ((p = strtok(userid, ", \t")) != NULL)
|
|
cmdcnf->min_uid = pw_checkid(p, UID_MAX);
|
|
if (cmdcnf->min_uid == 0)
|
|
cmdcnf->min_uid = 1000;
|
|
if ((p = strtok(NULL, " ,\t")) != NULL)
|
|
cmdcnf->max_uid = pw_checkid(p, UID_MAX);
|
|
if (cmdcnf->max_uid == 0)
|
|
cmdcnf->max_uid = 32000;
|
|
}
|
|
if (groupid != NULL) {
|
|
if ((p = strtok(groupid, ", \t")) != NULL)
|
|
cmdcnf->min_gid = pw_checkid(p, GID_MAX);
|
|
if (cmdcnf->min_gid == 0)
|
|
cmdcnf->min_gid = 1000;
|
|
if ((p = strtok(NULL, " ,\t")) != NULL)
|
|
cmdcnf->max_gid = pw_checkid(p, GID_MAX);
|
|
if (cmdcnf->max_gid == 0)
|
|
cmdcnf->max_gid = 32000;
|
|
}
|
|
if (write_userconfig(cmdcnf, cfg))
|
|
return (EXIT_SUCCESS);
|
|
err(EX_IOERR, "config update");
|
|
}
|
|
|
|
if (userid)
|
|
id = pw_checkid(userid, UID_MAX);
|
|
if (id < 0 && name == NULL)
|
|
errx(EX_DATAERR, "user name or id required");
|
|
|
|
if (name == NULL)
|
|
errx(EX_DATAERR, "login name required");
|
|
|
|
if (GETPWNAM(name) != NULL)
|
|
errx(EX_DATAERR, "login name `%s' already exists", name);
|
|
|
|
if (!grname)
|
|
grname = cmdcnf->default_group;
|
|
|
|
pwd = &fakeuser;
|
|
pwd->pw_name = name;
|
|
pwd->pw_class = cmdcnf->default_class ? cmdcnf->default_class : "";
|
|
pwd->pw_uid = pw_uidpolicy(cmdcnf, id);
|
|
pwd->pw_gid = pw_gidpolicy(cnf, grname, pwd->pw_name,
|
|
(gid_t) pwd->pw_uid, dryrun);
|
|
|
|
/* cmdcnf->password_days and cmdcnf->expire_days hold unixtime here */
|
|
if (cmdcnf->password_days > 0)
|
|
pwd->pw_change = cmdcnf->password_days;
|
|
if (cmdcnf->expire_days > 0)
|
|
pwd->pw_expire = cmdcnf->expire_days;
|
|
|
|
pwd->pw_dir = pw_homepolicy(cmdcnf, homedir, pwd->pw_name);
|
|
pwd->pw_shell = pw_shellpolicy(cmdcnf);
|
|
lc = login_getpwclass(pwd);
|
|
if (lc == NULL || login_setcryptfmt(lc, "sha512", NULL) == NULL)
|
|
warn("setting crypt(3) format");
|
|
login_close(lc);
|
|
pwd->pw_passwd = pw_password(cmdcnf, pwd->pw_name, dryrun);
|
|
if (pwd->pw_uid == 0 && strcmp(pwd->pw_name, "root") != 0)
|
|
warnx("WARNING: new account `%s' has a uid of 0 "
|
|
"(superuser access!)", pwd->pw_name);
|
|
if (gecos)
|
|
pwd->pw_gecos = gecos;
|
|
|
|
if (fd != -1)
|
|
pw_set_passwd(pwd, fd, precrypted, false);
|
|
|
|
if (dryrun)
|
|
return (print_user(pwd, pretty, false));
|
|
|
|
if ((rc = addpwent(pwd)) != 0) {
|
|
if (rc == -1)
|
|
errx(EX_IOERR, "user '%s' already exists",
|
|
pwd->pw_name);
|
|
else if (rc != 0)
|
|
err(EX_IOERR, "passwd file update");
|
|
}
|
|
if (nis && cmdcnf->nispasswd && *cmdcnf->nispasswd == '/') {
|
|
printf("%s\n", cmdcnf->nispasswd);
|
|
rc = addnispwent(cmdcnf->nispasswd, pwd);
|
|
if (rc == -1)
|
|
warnx("User '%s' already exists in NIS passwd",
|
|
pwd->pw_name);
|
|
else if (rc != 0)
|
|
warn("NIS passwd update");
|
|
/* NOTE: we treat NIS-only update errors as non-fatal */
|
|
}
|
|
|
|
if (cmdcnf->groups != NULL) {
|
|
for (i = 0; i < cmdcnf->groups->sl_cur; i++) {
|
|
grp = GETGRNAM(cmdcnf->groups->sl_str[i]);
|
|
grp = gr_add(grp, pwd->pw_name);
|
|
/*
|
|
* grp can only be NULL in 2 cases:
|
|
* - the new member is already a member
|
|
* - a problem with memory occurs
|
|
* in both cases we want to skip now.
|
|
*/
|
|
if (grp == NULL)
|
|
continue;
|
|
chggrent(grp->gr_name, grp);
|
|
free(grp);
|
|
}
|
|
}
|
|
|
|
pwd = GETPWNAM(name);
|
|
if (pwd == NULL)
|
|
errx(EX_NOUSER, "user '%s' disappeared during update", name);
|
|
|
|
grp = GETGRGID(pwd->pw_gid);
|
|
pw_log(cnf, M_ADD, W_USER, "%s(%ju):%s(%ju):%s:%s:%s",
|
|
pwd->pw_name, (uintmax_t)pwd->pw_uid,
|
|
grp ? grp->gr_name : "unknown",
|
|
(uintmax_t)(grp ? grp->gr_gid : (uid_t)-1),
|
|
pwd->pw_gecos, pwd->pw_dir, pwd->pw_shell);
|
|
|
|
/*
|
|
* let's touch and chown the user's mail file. This is not
|
|
* strictly necessary under BSD with a 0755 maildir but it also
|
|
* doesn't hurt anything to create the empty mailfile
|
|
*/
|
|
if (PWALTDIR() != PWF_ALT) {
|
|
snprintf(path, sizeof(path), "%s/%s", _PATH_MAILDIR,
|
|
pwd->pw_name);
|
|
/* Preserve contents & mtime */
|
|
close(openat(conf.rootfd, path +1, O_RDWR | O_CREAT, 0600));
|
|
fchownat(conf.rootfd, path + 1, pwd->pw_uid, pwd->pw_gid,
|
|
AT_SYMLINK_NOFOLLOW);
|
|
}
|
|
|
|
/*
|
|
* Let's create and populate the user's home directory. Note
|
|
* that this also `works' for editing users if -m is used, but
|
|
* existing files will *not* be overwritten.
|
|
*/
|
|
if (PWALTDIR() != PWF_ALT && createhome && pwd->pw_dir &&
|
|
*pwd->pw_dir == '/' && pwd->pw_dir[1])
|
|
create_and_populate_homedir(cmdcnf, pwd, cmdcnf->dotdir,
|
|
cmdcnf->homemode, false);
|
|
|
|
if (!PWALTDIR() && cmdcnf->newmail && *cmdcnf->newmail &&
|
|
(fp = fopen(cnf->newmail, "r")) != NULL) {
|
|
if ((pfp = popen(_PATH_SENDMAIL " -t", "w")) == NULL)
|
|
warn("sendmail");
|
|
else {
|
|
fprintf(pfp, "From: root\n" "To: %s\n"
|
|
"Subject: Welcome!\n\n", pwd->pw_name);
|
|
while (fgets(line, sizeof(line), fp) != NULL) {
|
|
/* Do substitutions? */
|
|
fputs(line, pfp);
|
|
}
|
|
pclose(pfp);
|
|
pw_log(cnf, M_ADD, W_USER, "%s(%ju) new user mail sent",
|
|
pwd->pw_name, (uintmax_t)pwd->pw_uid);
|
|
}
|
|
fclose(fp);
|
|
}
|
|
|
|
if (nis && nis_update() == 0)
|
|
pw_log(cnf, M_ADD, W_USER, "NIS maps updated");
|
|
|
|
return (EXIT_SUCCESS);
|
|
}
|
|
|
|
int
|
|
pw_user_mod(int argc, char **argv, char *arg1)
|
|
{
|
|
struct userconf *cnf;
|
|
struct passwd *pwd;
|
|
struct group *grp;
|
|
StringList *groups = NULL;
|
|
char args[] = "C:qn:u:c:d:e:p:g:G:mM:l:k:s:w:L:h:H:NPYy:";
|
|
const char *cfg = NULL;
|
|
char *gecos, *homedir, *grname, *name, *newname, *walk, *skel, *shell;
|
|
char *passwd, *class, *nispasswd;
|
|
login_cap_t *lc;
|
|
struct stat st;
|
|
intmax_t id = -1;
|
|
int ch, fd = -1;
|
|
size_t i, j;
|
|
bool quiet, createhome, pretty, dryrun, nis, edited;
|
|
bool precrypted;
|
|
mode_t homemode = 0;
|
|
time_t expire_time, password_time, now;
|
|
|
|
expire_time = password_time = -1;
|
|
gecos = homedir = grname = name = newname = skel = shell =NULL;
|
|
passwd = NULL;
|
|
class = nispasswd = NULL;
|
|
quiet = createhome = pretty = dryrun = nis = precrypted = false;
|
|
edited = false;
|
|
now = time(NULL);
|
|
|
|
if (arg1 != NULL) {
|
|
if (arg1[strspn(arg1, "0123456789")] == '\0')
|
|
id = pw_checkid(arg1, UID_MAX);
|
|
else
|
|
name = arg1;
|
|
}
|
|
|
|
while ((ch = getopt(argc, argv, args)) != -1) {
|
|
switch (ch) {
|
|
case 'C':
|
|
cfg = optarg;
|
|
break;
|
|
case 'q':
|
|
quiet = true;
|
|
break;
|
|
case 'n':
|
|
name = optarg;
|
|
break;
|
|
case 'u':
|
|
id = pw_checkid(optarg, UID_MAX);
|
|
break;
|
|
case 'c':
|
|
gecos = pw_checkname(optarg, 1);
|
|
break;
|
|
case 'd':
|
|
homedir = optarg;
|
|
break;
|
|
case 'e':
|
|
expire_time = parse_date(now, optarg);
|
|
break;
|
|
case 'p':
|
|
password_time = parse_date(now, optarg);
|
|
break;
|
|
case 'g':
|
|
group_from_name_or_id(optarg);
|
|
grname = optarg;
|
|
break;
|
|
case 'G':
|
|
split_groups(&groups, optarg);
|
|
break;
|
|
case 'm':
|
|
createhome = true;
|
|
break;
|
|
case 'M':
|
|
homemode = validate_mode(optarg);
|
|
break;
|
|
case 'l':
|
|
newname = optarg;
|
|
break;
|
|
case 'k':
|
|
walk = skel = optarg;
|
|
if (*walk == '/')
|
|
walk++;
|
|
if (fstatat(conf.rootfd, walk, &st, 0) == -1)
|
|
errx(EX_OSFILE, "skeleton `%s' does not "
|
|
"exists", skel);
|
|
if (!S_ISDIR(st.st_mode))
|
|
errx(EX_OSFILE, "skeleton `%s' is not a "
|
|
"directory", skel);
|
|
break;
|
|
case 's':
|
|
shell = optarg;
|
|
break;
|
|
case 'w':
|
|
passwd = optarg;
|
|
break;
|
|
case 'L':
|
|
class = pw_checkname(optarg, 0);
|
|
break;
|
|
case 'H':
|
|
if (fd != -1)
|
|
errx(EX_USAGE, "'-h' and '-H' are mutually "
|
|
"exclusive options");
|
|
fd = pw_checkfd(optarg);
|
|
precrypted = true;
|
|
if (fd == '-')
|
|
errx(EX_USAGE, "-H expects a file descriptor");
|
|
break;
|
|
case 'h':
|
|
if (fd != -1)
|
|
errx(EX_USAGE, "'-h' and '-H' are mutually "
|
|
"exclusive options");
|
|
fd = pw_checkfd(optarg);
|
|
break;
|
|
case 'N':
|
|
dryrun = true;
|
|
break;
|
|
case 'P':
|
|
pretty = true;
|
|
break;
|
|
case 'y':
|
|
nispasswd = optarg;
|
|
break;
|
|
case 'Y':
|
|
nis = true;
|
|
break;
|
|
}
|
|
}
|
|
|
|
if (geteuid() != 0 && ! dryrun)
|
|
errx(EX_NOPERM, "you must be root");
|
|
|
|
if (quiet)
|
|
freopen(_PATH_DEVNULL, "w", stderr);
|
|
|
|
cnf = get_userconfig(cfg);
|
|
|
|
if (id < 0 && name == NULL)
|
|
errx(EX_DATAERR, "username or id required");
|
|
|
|
pwd = (name != NULL) ? GETPWNAM(pw_checkname(name, 0)) : GETPWUID(id);
|
|
if (pwd == NULL) {
|
|
if (name == NULL)
|
|
errx(EX_NOUSER, "no such uid `%ju'",
|
|
(uintmax_t) id);
|
|
errx(EX_NOUSER, "no such user `%s'", name);
|
|
}
|
|
|
|
if (name == NULL)
|
|
name = pwd->pw_name;
|
|
|
|
if (nis && nispasswd == NULL)
|
|
nispasswd = cnf->nispasswd;
|
|
|
|
if (PWF._altdir == PWF_REGULAR &&
|
|
((pwd->pw_fields & _PWF_SOURCE) != _PWF_FILES)) {
|
|
if ((pwd->pw_fields & _PWF_SOURCE) == _PWF_NIS) {
|
|
if (!nis && nispasswd && *nispasswd != '/')
|
|
errx(EX_NOUSER, "Cannot modify NIS user `%s'",
|
|
name);
|
|
} else {
|
|
errx(EX_NOUSER, "Cannot modify non local user `%s'",
|
|
name);
|
|
}
|
|
}
|
|
|
|
if (newname) {
|
|
if (strcmp(pwd->pw_name, "root") == 0)
|
|
errx(EX_DATAERR, "can't rename `root' account");
|
|
if (strcmp(pwd->pw_name, newname) != 0) {
|
|
pwd->pw_name = pw_checkname(newname, 0);
|
|
edited = true;
|
|
}
|
|
}
|
|
|
|
if (id >= 0 && pwd->pw_uid != id) {
|
|
pwd->pw_uid = id;
|
|
edited = true;
|
|
if (pwd->pw_uid != 0 && strcmp(pwd->pw_name, "root") == 0)
|
|
errx(EX_DATAERR, "can't change uid of `root' account");
|
|
if (pwd->pw_uid == 0 && strcmp(pwd->pw_name, "root") != 0)
|
|
warnx("WARNING: account `%s' will have a uid of 0 "
|
|
"(superuser access!)", pwd->pw_name);
|
|
}
|
|
|
|
if (grname && pwd->pw_uid != 0) {
|
|
grp = GETGRNAM(grname);
|
|
if (grp == NULL)
|
|
grp = GETGRGID(pw_checkid(grname, GID_MAX));
|
|
if (grp->gr_gid != pwd->pw_gid) {
|
|
pwd->pw_gid = grp->gr_gid;
|
|
edited = true;
|
|
}
|
|
}
|
|
|
|
|
|
if (password_time >= 0 && pwd->pw_change != password_time) {
|
|
pwd->pw_change = password_time;
|
|
edited = true;
|
|
}
|
|
|
|
if (expire_time >= 0 && pwd->pw_expire != expire_time) {
|
|
pwd->pw_expire = expire_time;
|
|
edited = true;
|
|
}
|
|
|
|
if (shell) {
|
|
shell = shell_path(cnf->shelldir, cnf->shells, shell);
|
|
if (shell == NULL)
|
|
shell = "";
|
|
if (strcmp(shell, pwd->pw_shell) != 0) {
|
|
pwd->pw_shell = shell;
|
|
edited = true;
|
|
}
|
|
}
|
|
|
|
if (class && strcmp(pwd->pw_class, class) != 0) {
|
|
pwd->pw_class = class;
|
|
edited = true;
|
|
}
|
|
|
|
if (homedir && strcmp(pwd->pw_dir, homedir) != 0) {
|
|
pwd->pw_dir = homedir;
|
|
edited = true;
|
|
if (fstatat(conf.rootfd, pwd->pw_dir, &st, 0) == -1) {
|
|
if (!createhome)
|
|
warnx("WARNING: home `%s' does not exist",
|
|
pwd->pw_dir);
|
|
} else if (!S_ISDIR(st.st_mode)) {
|
|
warnx("WARNING: home `%s' is not a directory",
|
|
pwd->pw_dir);
|
|
}
|
|
}
|
|
|
|
if (passwd && conf.fd == -1) {
|
|
lc = login_getpwclass(pwd);
|
|
if (lc == NULL || login_setcryptfmt(lc, "sha512", NULL) == NULL)
|
|
warn("setting crypt(3) format");
|
|
login_close(lc);
|
|
cnf->default_password = passwd_val(passwd,
|
|
cnf->default_password);
|
|
pwd->pw_passwd = pw_password(cnf, pwd->pw_name, dryrun);
|
|
edited = true;
|
|
}
|
|
|
|
if (gecos && strcmp(pwd->pw_gecos, gecos) != 0) {
|
|
pwd->pw_gecos = gecos;
|
|
edited = true;
|
|
}
|
|
|
|
if (fd != -1)
|
|
edited = pw_set_passwd(pwd, fd, precrypted, true);
|
|
|
|
if (dryrun)
|
|
return (print_user(pwd, pretty, false));
|
|
|
|
if (edited) /* Only updated this if required */
|
|
perform_chgpwent(name, pwd, nis ? nispasswd : NULL);
|
|
/* Now perform the needed changes concern groups */
|
|
if (groups != NULL) {
|
|
/* Delete User from groups using old name */
|
|
SETGRENT();
|
|
while ((grp = GETGRENT()) != NULL) {
|
|
if (grp->gr_mem == NULL)
|
|
continue;
|
|
for (i = 0; grp->gr_mem[i] != NULL; i++) {
|
|
if (strcmp(grp->gr_mem[i] , name) != 0)
|
|
continue;
|
|
for (j = i; grp->gr_mem[j] != NULL ; j++)
|
|
grp->gr_mem[j] = grp->gr_mem[j+1];
|
|
chggrent(grp->gr_name, grp);
|
|
break;
|
|
}
|
|
}
|
|
ENDGRENT();
|
|
/* Add the user to the needed groups */
|
|
for (i = 0; i < groups->sl_cur; i++) {
|
|
grp = GETGRNAM(groups->sl_str[i]);
|
|
grp = gr_add(grp, pwd->pw_name);
|
|
if (grp == NULL)
|
|
continue;
|
|
chggrent(grp->gr_name, grp);
|
|
free(grp);
|
|
}
|
|
}
|
|
/* In case of rename we need to walk over the different groups */
|
|
if (newname) {
|
|
SETGRENT();
|
|
while ((grp = GETGRENT()) != NULL) {
|
|
if (grp->gr_mem == NULL)
|
|
continue;
|
|
for (i = 0; grp->gr_mem[i] != NULL; i++) {
|
|
if (strcmp(grp->gr_mem[i], name) != 0)
|
|
continue;
|
|
grp->gr_mem[i] = newname;
|
|
chggrent(grp->gr_name, grp);
|
|
break;
|
|
}
|
|
}
|
|
}
|
|
|
|
/* go get a current version of pwd */
|
|
if (newname)
|
|
name = newname;
|
|
pwd = GETPWNAM(name);
|
|
if (pwd == NULL)
|
|
errx(EX_NOUSER, "user '%s' disappeared during update", name);
|
|
grp = GETGRGID(pwd->pw_gid);
|
|
pw_log(cnf, M_UPDATE, W_USER, "%s(%ju):%s(%ju):%s:%s:%s",
|
|
pwd->pw_name, (uintmax_t)pwd->pw_uid,
|
|
grp ? grp->gr_name : "unknown",
|
|
(uintmax_t)(grp ? grp->gr_gid : (uid_t)-1),
|
|
pwd->pw_gecos, pwd->pw_dir, pwd->pw_shell);
|
|
|
|
/*
|
|
* Let's create and populate the user's home directory. Note
|
|
* that this also `works' for editing users if -m is used, but
|
|
* existing files will *not* be overwritten.
|
|
*/
|
|
if (PWALTDIR() != PWF_ALT && createhome && pwd->pw_dir &&
|
|
*pwd->pw_dir == '/' && pwd->pw_dir[1]) {
|
|
if (!skel)
|
|
skel = cnf->dotdir;
|
|
if (homemode == 0)
|
|
homemode = cnf->homemode;
|
|
create_and_populate_homedir(cnf, pwd, skel, homemode, true);
|
|
}
|
|
|
|
if (nis && nis_update() == 0)
|
|
pw_log(cnf, M_UPDATE, W_USER, "NIS maps updated");
|
|
|
|
return (EXIT_SUCCESS);
|
|
}
|