/* Unix SMB/CIFS implementation. nss tester for winbindd Copyright (C) Andrew Tridgell 2001 Copyright (C) Tim Potter 2003 This program is free software; you can redistribute it and/or modify it under the terms of the GNU General Public License as published by the Free Software Foundation; either version 3 of the License, or (at your option) any later version. This program is distributed in the hope that it will be useful, but WITHOUT ANY WARRANTY; without even the implied warranty of MERCHANTABILITY or FITNESS FOR A PARTICULAR PURPOSE. See the GNU General Public License for more details. You should have received a copy of the GNU General Public License along with this program. If not, see <http://www.gnu.org/licenses/>. */ #include "includes.h" static const char *so_path = "/lib/libnss_winbind.so"; static const char *nss_name = "winbind"; static int nss_errno; static NSS_STATUS last_error; static int total_errors; static void *find_fn(const char *name) { char *s; static void *h; void *res; if (asprintf(&s, "_nss_%s_%s", nss_name, name) < 0) { exit(1); } if (!h) { h = sys_dlopen(so_path, RTLD_LAZY); } if (!h) { printf("Can't open shared library %s\n", so_path); exit(1); } res = sys_dlsym(h, s); if (!res) { printf("Can't find function %s\n", s); total_errors++; SAFE_FREE(s); return NULL; } SAFE_FREE(s); return res; } static void report_nss_error(const char *who, NSS_STATUS status) { last_error = status; total_errors++; printf("ERROR %s: NSS_STATUS=%d %d (nss_errno=%d)\n", who, status, NSS_STATUS_SUCCESS, nss_errno); } static struct passwd *nss_getpwent(void) { NSS_STATUS (*_nss_getpwent_r)(struct passwd *, char *, size_t , int *) = (NSS_STATUS (*)(struct passwd *, char *, size_t, int *))find_fn("getpwent_r"); static struct passwd pwd; static char buf[1000]; NSS_STATUS status; if (!_nss_getpwent_r) return NULL; status = _nss_getpwent_r(&pwd, buf, sizeof(buf), &nss_errno); if (status == NSS_STATUS_NOTFOUND) { return NULL; } if (status != NSS_STATUS_SUCCESS) { report_nss_error("getpwent", status); return NULL; } return &pwd; } static struct passwd *nss_getpwnam(const char *name) { NSS_STATUS (*_nss_getpwnam_r)(const char *, struct passwd *, char *, size_t , int *) = (NSS_STATUS (*)(const char *, struct passwd *, char *, size_t, int *))find_fn("getpwnam_r"); static struct passwd pwd; static char buf[1000]; NSS_STATUS status; if (!_nss_getpwnam_r) return NULL; status = _nss_getpwnam_r(name, &pwd, buf, sizeof(buf), &nss_errno); if (status == NSS_STATUS_NOTFOUND) { return NULL; } if (status != NSS_STATUS_SUCCESS) { report_nss_error("getpwnam", status); return NULL; } return &pwd; } static struct passwd *nss_getpwuid(uid_t uid) { NSS_STATUS (*_nss_getpwuid_r)(uid_t , struct passwd *, char *, size_t , int *) = (NSS_STATUS (*)(uid_t, struct passwd *, char *, size_t, int *))find_fn("getpwuid_r"); static struct passwd pwd; static char buf[1000]; NSS_STATUS status; if (!_nss_getpwuid_r) return NULL; status = _nss_getpwuid_r(uid, &pwd, buf, sizeof(buf), &nss_errno); if (status == NSS_STATUS_NOTFOUND) { return NULL; } if (status != NSS_STATUS_SUCCESS) { report_nss_error("getpwuid", status); return NULL; } return &pwd; } static void nss_setpwent(void) { NSS_STATUS (*_nss_setpwent)(void) = (NSS_STATUS(*)(void))find_fn("setpwent"); NSS_STATUS status; if (!_nss_setpwent) return; status = _nss_setpwent(); if (status != NSS_STATUS_SUCCESS) { report_nss_error("setpwent", status); } } static void nss_endpwent(void) { NSS_STATUS (*_nss_endpwent)(void) = (NSS_STATUS (*)(void))find_fn("endpwent"); NSS_STATUS status; if (!_nss_endpwent) return; status = _nss_endpwent(); if (status != NSS_STATUS_SUCCESS) { report_nss_error("endpwent", status); } } static struct group *nss_getgrent(void) { NSS_STATUS (*_nss_getgrent_r)(struct group *, char *, size_t , int *) = (NSS_STATUS (*)(struct group *, char *, size_t, int *))find_fn("getgrent_r"); static struct group grp; static char *buf; static int buflen = 1024; NSS_STATUS status; if (!_nss_getgrent_r) return NULL; if (!buf) buf = SMB_MALLOC_ARRAY(char, buflen); again: status = _nss_getgrent_r(&grp, buf, buflen, &nss_errno); if (status == NSS_STATUS_TRYAGAIN) { buflen *= 2; buf = SMB_REALLOC_ARRAY(buf, char, buflen); if (!buf) { return NULL; } goto again; } if (status == NSS_STATUS_NOTFOUND) { SAFE_FREE(buf); return NULL; } if (status != NSS_STATUS_SUCCESS) { report_nss_error("getgrent", status); SAFE_FREE(buf); return NULL; } return &grp; } static struct group *nss_getgrnam(const char *name) { NSS_STATUS (*_nss_getgrnam_r)(const char *, struct group *, char *, size_t , int *) = (NSS_STATUS (*)(const char *, struct group *, char *, size_t, int *))find_fn("getgrnam_r"); static struct group grp; static char *buf; static int buflen = 1000; NSS_STATUS status; if (!_nss_getgrnam_r) return NULL; if (!buf) buf = SMB_MALLOC_ARRAY(char, buflen); again: status = _nss_getgrnam_r(name, &grp, buf, buflen, &nss_errno); if (status == NSS_STATUS_TRYAGAIN) { buflen *= 2; buf = SMB_REALLOC_ARRAY(buf, char, buflen); if (!buf) { return NULL; } goto again; } if (status == NSS_STATUS_NOTFOUND) { SAFE_FREE(buf); return NULL; } if (status != NSS_STATUS_SUCCESS) { report_nss_error("getgrnam", status); SAFE_FREE(buf); return NULL; } return &grp; } static struct group *nss_getgrgid(gid_t gid) { NSS_STATUS (*_nss_getgrgid_r)(gid_t , struct group *, char *, size_t , int *) = (NSS_STATUS (*)(gid_t, struct group *, char *, size_t, int *))find_fn("getgrgid_r"); static struct group grp; static char *buf; static int buflen = 1000; NSS_STATUS status; if (!_nss_getgrgid_r) return NULL; if (!buf) buf = SMB_MALLOC_ARRAY(char, buflen); again: status = _nss_getgrgid_r(gid, &grp, buf, buflen, &nss_errno); if (status == NSS_STATUS_TRYAGAIN) { buflen *= 2; buf = SMB_REALLOC_ARRAY(buf, char, buflen); if (!buf) { return NULL; } goto again; } if (status == NSS_STATUS_NOTFOUND) { SAFE_FREE(buf); return NULL; } if (status != NSS_STATUS_SUCCESS) { report_nss_error("getgrgid", status); SAFE_FREE(buf); return NULL; } return &grp; } static void nss_setgrent(void) { NSS_STATUS (*_nss_setgrent)(void) = (NSS_STATUS (*)(void))find_fn("setgrent"); NSS_STATUS status; if (!_nss_setgrent) return; status = _nss_setgrent(); if (status != NSS_STATUS_SUCCESS) { report_nss_error("setgrent", status); } } static void nss_endgrent(void) { NSS_STATUS (*_nss_endgrent)(void) = (NSS_STATUS (*)(void))find_fn("endgrent"); NSS_STATUS status; if (!_nss_endgrent) return; status = _nss_endgrent(); if (status != NSS_STATUS_SUCCESS) { report_nss_error("endgrent", status); } } static int nss_initgroups(char *user, gid_t group, gid_t **groups, long int *start, long int *size) { NSS_STATUS (*_nss_initgroups)(char *, gid_t , long int *, long int *, gid_t **, long int , int *) = (NSS_STATUS (*)(char *, gid_t, long int *, long int *, gid_t **, long int, int *))find_fn("initgroups_dyn"); NSS_STATUS status; if (!_nss_initgroups) return NSS_STATUS_UNAVAIL; status = _nss_initgroups(user, group, start, size, groups, 0, &nss_errno); if (status != NSS_STATUS_SUCCESS) { report_nss_error("initgroups", status); } return status; } static void print_passwd(struct passwd *pwd) { printf("%s:%s:%lu:%lu:%s:%s:%s\n", pwd->pw_name, pwd->pw_passwd, (unsigned long)pwd->pw_uid, (unsigned long)pwd->pw_gid, pwd->pw_gecos, pwd->pw_dir, pwd->pw_shell); } static void print_group(struct group *grp) { int i; printf("%s:%s:%lu: ", grp->gr_name, grp->gr_passwd, (unsigned long)grp->gr_gid); if (!grp->gr_mem[0]) { printf("\n"); return; } for (i=0; grp->gr_mem[i+1]; i++) { printf("%s, ", grp->gr_mem[i]); } printf("%s\n", grp->gr_mem[i]); } static void nss_test_initgroups(char *name, gid_t gid) { long int size = 16; long int start = 1; gid_t *groups = NULL; int i; NSS_STATUS status; groups = SMB_MALLOC_ARRAY(gid_t, size); groups[0] = gid; status = nss_initgroups(name, gid, &groups, &start, &size); if (status == NSS_STATUS_UNAVAIL) { printf("No initgroups fn\n"); return; } for (i=0; i<start-1; i++) { printf("%lu, ", (unsigned long)groups[i]); } printf("%lu\n", (unsigned long)groups[i]); } static void nss_test_users(void) { struct passwd *pwd; nss_setpwent(); /* loop over all users */ while ((pwd = nss_getpwent())) { printf("Testing user %s\n", pwd->pw_name); printf("getpwent: "); print_passwd(pwd); pwd = nss_getpwuid(pwd->pw_uid); if (!pwd) { total_errors++; printf("ERROR: can't getpwuid\n"); continue; } printf("getpwuid: "); print_passwd(pwd); pwd = nss_getpwnam(pwd->pw_name); if (!pwd) { total_errors++; printf("ERROR: can't getpwnam\n"); continue; } printf("getpwnam: "); print_passwd(pwd); printf("initgroups: "); nss_test_initgroups(pwd->pw_name, pwd->pw_gid); printf("\n"); } nss_endpwent(); } static void nss_test_groups(void) { struct group *grp; nss_setgrent(); /* loop over all groups */ while ((grp = nss_getgrent())) { printf("Testing group %s\n", grp->gr_name); printf("getgrent: "); print_group(grp); grp = nss_getgrnam(grp->gr_name); if (!grp) { total_errors++; printf("ERROR: can't getgrnam\n"); continue; } printf("getgrnam: "); print_group(grp); grp = nss_getgrgid(grp->gr_gid); if (!grp) { total_errors++; printf("ERROR: can't getgrgid\n"); continue; } printf("getgrgid: "); print_group(grp); printf("\n"); } nss_endgrent(); } static void nss_test_errors(void) { struct passwd *pwd; struct group *grp; pwd = getpwnam("nosuchname"); if (pwd || last_error != NSS_STATUS_NOTFOUND) { total_errors++; printf("ERROR Non existant user gave error %d\n", last_error); } pwd = getpwuid(0xFFF0); if (pwd || last_error != NSS_STATUS_NOTFOUND) { total_errors++; printf("ERROR Non existant uid gave error %d\n", last_error); } grp = getgrnam("nosuchgroup"); if (grp || last_error != NSS_STATUS_NOTFOUND) { total_errors++; printf("ERROR Non existant group gave error %d\n", last_error); } grp = getgrgid(0xFFF0); if (grp || last_error != NSS_STATUS_NOTFOUND) { total_errors++; printf("ERROR Non existant gid gave error %d\n", last_error); } } int main(int argc, char *argv[]) { if (argc > 1) so_path = argv[1]; if (argc > 2) nss_name = argv[2]; nss_test_users(); nss_test_groups(); nss_test_errors(); printf("total_errors=%d\n", total_errors); return total_errors; }