source/torture/nsstest.c

   1 /*
   2    Unix SMB/CIFS implementation.
   3    nss tester for winbindd
   4    Copyright (C) Andrew Tridgell 2001
   5    Copyright (C) Tim Potter 2003
   6
   7    This program is free software; you can redistribute it and/or modify
   8    it under the terms of the GNU General Public License as published by
   9    the Free Software Foundation; either version 3 of the License, or
  10    (at your option) any later version.
  11
  12    This program is distributed in the hope that it will be useful,
  13    but WITHOUT ANY WARRANTY; without even the implied warranty of
  14    MERCHANTABILITY or FITNESS FOR A PARTICULAR PURPOSE.  See the
  15    GNU General Public License for more details.
  16
  17    You should have received a copy of the GNU General Public License
  18    along with this program.  If not, see <http://www.gnu.org/licenses/>.
  19 */
  20
  21 #include "includes.h"
  22
  23 static const char *so_path = "/lib/libnss_winbind.so";
  24 static const char *nss_name = "winbind";
  25 static int nss_errno;
  26 static NSS_STATUS last_error;
  27 static int total_errors;
  28
  29 static void *find_fn(const char *name)
  30 {
  31         char *s;
  32         static void *h;
  33         void *res;
  34
  35         if (asprintf(&s, "_nss_%s_%s", nss_name, name) < 0) {
  36                 exit(1);
  37         }
  38
  39         if (!h) {
  40                 h = sys_dlopen(so_path, RTLD_LAZY);
  41         }
  42         if (!h) {
  43                 printf("Can't open shared library %s\n", so_path);
  44                 exit(1);
  45         }
  46         res = sys_dlsym(h, s);
  47         if (!res) {
  48                 printf("Can't find function %s\n", s);
  49                 total_errors++;
  50                 SAFE_FREE(s);
  51                 return NULL;
  52         }
  53         SAFE_FREE(s);
  54         return res;
  55 }
  56
  57 static void report_nss_error(const char *who, NSS_STATUS status)
  58 {
  59         last_error = status;
  60         total_errors++;
  61         printf("ERROR %s: NSS_STATUS=%d  %d (nss_errno=%d)\n",
  62                who, status, NSS_STATUS_SUCCESS, nss_errno);
  63 }
  64
  65 static struct passwd *nss_getpwent(void)
  66 {
  67         NSS_STATUS (*_nss_getpwent_r)(struct passwd *, char *,
  68                                       size_t , int *) =
  69                 (NSS_STATUS (*)(struct passwd *, char *,
  70                                 size_t, int *))find_fn("getpwent_r");
  71         static struct passwd pwd;
  72         static char buf[1000];
  73         NSS_STATUS status;
  74
  75         if (!_nss_getpwent_r)
  76                 return NULL;
  77
  78         status = _nss_getpwent_r(&pwd, buf, sizeof(buf), &nss_errno);
  79         if (status == NSS_STATUS_NOTFOUND) {
  80                 return NULL;
  81         }
  82         if (status != NSS_STATUS_SUCCESS) {
  83                 report_nss_error("getpwent", status);
  84                 return NULL;
  85         }
  86         return &pwd;
  87 }
  88
  89 static struct passwd *nss_getpwnam(const char *name)
  90 {
  91         NSS_STATUS (*_nss_getpwnam_r)(const char *, struct passwd *, char *,
  92                                       size_t , int *) =
  93                 (NSS_STATUS (*)(const char *, struct passwd *, char *,
  94                                 size_t, int *))find_fn("getpwnam_r");
  95         static struct passwd pwd;
  96         static char buf[1000];
  97         NSS_STATUS status;
  98
  99         if (!_nss_getpwnam_r)
 100                 return NULL;
 101
 102         status = _nss_getpwnam_r(name, &pwd, buf, sizeof(buf), &nss_errno);
 103         if (status == NSS_STATUS_NOTFOUND) {
 104                 return NULL;
 105         }
 106         if (status != NSS_STATUS_SUCCESS) {
 107                 report_nss_error("getpwnam", status);
 108                 return NULL;
 109         }
 110         return &pwd;
 111 }
 112
 113 static struct passwd *nss_getpwuid(uid_t uid)
 114 {
 115         NSS_STATUS (*_nss_getpwuid_r)(uid_t , struct passwd *, char *,
 116                                       size_t , int *) =
 117                 (NSS_STATUS (*)(uid_t, struct passwd *, char *,
 118                                 size_t, int *))find_fn("getpwuid_r");
 119         static struct passwd pwd;
 120         static char buf[1000];
 121         NSS_STATUS status;
 122
 123         if (!_nss_getpwuid_r)
 124                 return NULL;
 125
 126         status = _nss_getpwuid_r(uid, &pwd, buf, sizeof(buf), &nss_errno);
 127         if (status == NSS_STATUS_NOTFOUND) {
 128                 return NULL;
 129         }
 130         if (status != NSS_STATUS_SUCCESS) {
 131                 report_nss_error("getpwuid", status);
 132                 return NULL;
 133         }
 134         return &pwd;
 135 }
 136
 137 static void nss_setpwent(void)
 138 {
 139         NSS_STATUS (*_nss_setpwent)(void) =
 140                 (NSS_STATUS(*)(void))find_fn("setpwent");
 141         NSS_STATUS status;
 142
 143         if (!_nss_setpwent)
 144                 return;
 145
 146         status = _nss_setpwent();
 147         if (status != NSS_STATUS_SUCCESS) {
 148                 report_nss_error("setpwent", status);
 149         }
 150 }
 151
 152 static void nss_endpwent(void)
 153 {
 154         NSS_STATUS (*_nss_endpwent)(void) =
 155                 (NSS_STATUS (*)(void))find_fn("endpwent");
 156         NSS_STATUS status;
 157
 158         if (!_nss_endpwent)
 159                 return;
 160
 161         status = _nss_endpwent();
 162         if (status != NSS_STATUS_SUCCESS) {
 163                 report_nss_error("endpwent", status);
 164         }
 165 }
 166
 167
 168 static struct group *nss_getgrent(void)
 169 {
 170         NSS_STATUS (*_nss_getgrent_r)(struct group *, char *,
 171                                       size_t , int *) =
 172                 (NSS_STATUS (*)(struct group *, char *,
 173                                 size_t, int *))find_fn("getgrent_r");
 174         static struct group grp;
 175         static char *buf;
 176         static int buflen = 1024;
 177         NSS_STATUS status;
 178
 179         if (!_nss_getgrent_r)
 180                 return NULL;
 181
 182         if (!buf)
 183                 buf = SMB_MALLOC_ARRAY(char, buflen);
 184
 185 again:
 186         status = _nss_getgrent_r(&grp, buf, buflen, &nss_errno);
 187         if (status == NSS_STATUS_TRYAGAIN) {
 188                 buflen *= 2;
 189                 buf = SMB_REALLOC_ARRAY(buf, char, buflen);
 190                 if (!buf) {
 191                         return NULL;
 192                 }
 193                 goto again;
 194         }
 195         if (status == NSS_STATUS_NOTFOUND) {
 196                 SAFE_FREE(buf);
 197                 return NULL;
 198         }
 199         if (status != NSS_STATUS_SUCCESS) {
 200                 report_nss_error("getgrent", status);
 201                 SAFE_FREE(buf);
 202                 return NULL;
 203         }
 204         SAFE_FREE(buf);
 205         return &grp;
 206 }
 207
 208 static struct group *nss_getgrnam(const char *name)
 209 {
 210         NSS_STATUS (*_nss_getgrnam_r)(const char *, struct group *, char *,
 211                                       size_t , int *) =
 212                 (NSS_STATUS (*)(const char *, struct group *, char *,
 213                                 size_t, int *))find_fn("getgrnam_r");
 214         static struct group grp;
 215         static char *buf;
 216         static int buflen = 1000;
 217         NSS_STATUS status;
 218
 219         if (!_nss_getgrnam_r)
 220                 return NULL;
 221
 222         if (!buf)
 223                 buf = SMB_MALLOC_ARRAY(char, buflen);
 224 again:
 225         status = _nss_getgrnam_r(name, &grp, buf, buflen, &nss_errno);
 226         if (status == NSS_STATUS_TRYAGAIN) {
 227                 buflen *= 2;
 228                 buf = SMB_REALLOC_ARRAY(buf, char, buflen);
 229                 if (!buf) {
 230                         return NULL;
 231                 }
 232                 goto again;
 233         }
 234         if (status == NSS_STATUS_NOTFOUND) {
 235                 SAFE_FREE(buf);
 236                 return NULL;
 237         }
 238         if (status != NSS_STATUS_SUCCESS) {
 239                 report_nss_error("getgrnam", status);
 240                 SAFE_FREE(buf);
 241                 return NULL;
 242         }
 243         SAFE_FREE(buf);
 244         return &grp;
 245 }
 246
 247 static struct group *nss_getgrgid(gid_t gid)
 248 {
 249         NSS_STATUS (*_nss_getgrgid_r)(gid_t , struct group *, char *,
 250                                       size_t , int *) =
 251                 (NSS_STATUS (*)(gid_t, struct group *, char *,
 252                                 size_t, int *))find_fn("getgrgid_r");
 253         static struct group grp;
 254         static char *buf;
 255         static int buflen = 1000;
 256         NSS_STATUS status;
 257
 258         if (!_nss_getgrgid_r)
 259                 return NULL;
 260
 261         if (!buf)
 262                 buf = SMB_MALLOC_ARRAY(char, buflen);
 263
 264 again:
 265         status = _nss_getgrgid_r(gid, &grp, buf, buflen, &nss_errno);
 266         if (status == NSS_STATUS_TRYAGAIN) {
 267                 buflen *= 2;
 268                 buf = SMB_REALLOC_ARRAY(buf, char, buflen);
 269                 if (!buf) {
 270                         return NULL;
 271                 }
 272                 goto again;
 273         }
 274         if (status == NSS_STATUS_NOTFOUND) {
 275                 SAFE_FREE(buf);
 276                 return NULL;
 277         }
 278         if (status != NSS_STATUS_SUCCESS) {
 279                 report_nss_error("getgrgid", status);
 280                 SAFE_FREE(buf);
 281                 return NULL;
 282         }
 283         SAFE_FREE(buf);
 284         return &grp;
 285 }
 286
 287 static void nss_setgrent(void)
 288 {
 289         NSS_STATUS (*_nss_setgrent)(void) =
 290                 (NSS_STATUS (*)(void))find_fn("setgrent");
 291         NSS_STATUS status;
 292
 293         if (!_nss_setgrent)
 294                 return;
 295
 296         status = _nss_setgrent();
 297         if (status != NSS_STATUS_SUCCESS) {
 298                 report_nss_error("setgrent", status);
 299         }
 300 }
 301
 302 static void nss_endgrent(void)
 303 {
 304         NSS_STATUS (*_nss_endgrent)(void) =
 305                 (NSS_STATUS (*)(void))find_fn("endgrent");
 306         NSS_STATUS status;
 307
 308         if (!_nss_endgrent)
 309                 return;
 310
 311         status = _nss_endgrent();
 312         if (status != NSS_STATUS_SUCCESS) {
 313                 report_nss_error("endgrent", status);
 314         }
 315 }
 316
 317 static int nss_initgroups(char *user, gid_t group, gid_t **groups, long int *start, long int *size)
 318 {
 319         NSS_STATUS (*_nss_initgroups)(char *, gid_t , long int *,
 320                                       long int *, gid_t **, long int , int *) =
 321                 (NSS_STATUS (*)(char *, gid_t, long int *,
 322                                 long int *, gid_t **,
 323                                 long int, int *))find_fn("initgroups_dyn");
 324         NSS_STATUS status;
 325
 326         if (!_nss_initgroups)
 327                 return NSS_STATUS_UNAVAIL;
 328
 329         status = _nss_initgroups(user, group, start, size, groups, 0, &nss_errno);
 330         if (status != NSS_STATUS_SUCCESS) {
 331                 report_nss_error("initgroups", status);
 332         }
 333         return status;
 334 }
 335
 336 static void print_passwd(struct passwd *pwd)
 337 {
 338         printf("%s:%s:%lu:%lu:%s:%s:%s\n",
 339                pwd->pw_name,
 340                pwd->pw_passwd,
 341                (unsigned long)pwd->pw_uid,
 342                (unsigned long)pwd->pw_gid,
 343                pwd->pw_gecos,
 344                pwd->pw_dir,
 345                pwd->pw_shell);
 346 }
 347
 348 static void print_group(struct group *grp)
 349 {
 350         int i;
 351         printf("%s:%s:%lu: ",
 352                grp->gr_name,
 353                grp->gr_passwd,
 354                (unsigned long)grp->gr_gid);
 355
 356         if (!grp->gr_mem[0]) {
 357                 printf("\n");
 358                 return;
 359         }
 360
 361         for (i=0; grp->gr_mem[i+1]; i++) {
 362                 printf("%s, ", grp->gr_mem[i]);
 363         }
 364         printf("%s\n", grp->gr_mem[i]);
 365 }
 366
 367 static void nss_test_initgroups(char *name, gid_t gid)
 368 {
 369         long int size = 16;
 370         long int start = 1;
 371         gid_t *groups = NULL;
 372         int i;
 373         NSS_STATUS status;
 374
 375         groups = SMB_MALLOC_ARRAY(gid_t, size);
 376         groups[0] = gid;
 377
 378         status = nss_initgroups(name, gid, &groups, &start, &size);
 379         if (status == NSS_STATUS_UNAVAIL) {
 380                 printf("No initgroups fn\n");
 381                 return;
 382         }
 383
 384         for (i=0; i<start-1; i++) {
 385                 printf("%lu, ", (unsigned long)groups[i]);
 386         }
 387         printf("%lu\n", (unsigned long)groups[i]);
 388 }
 389
 390
 391 static void nss_test_users(void)
 392 {
 393         struct passwd *pwd;
 394
 395         nss_setpwent();
 396         /* loop over all users */
 397         while ((pwd = nss_getpwent())) {
 398                 printf("Testing user %s\n", pwd->pw_name);
 399                 printf("getpwent:   "); print_passwd(pwd);
 400                 pwd = nss_getpwuid(pwd->pw_uid);
 401                 if (!pwd) {
 402                         total_errors++;
 403                         printf("ERROR: can't getpwuid\n");
 404                         continue;
 405                 }
 406                 printf("getpwuid:   "); print_passwd(pwd);
 407                 pwd = nss_getpwnam(pwd->pw_name);
 408                 if (!pwd) {
 409                         total_errors++;
 410                         printf("ERROR: can't getpwnam\n");
 411                         continue;
 412                 }
 413                 printf("getpwnam:   "); print_passwd(pwd);
 414                 printf("initgroups: "); nss_test_initgroups(pwd->pw_name, pwd->pw_gid);
 415                 printf("\n");
 416         }
 417         nss_endpwent();
 418 }
 419
 420 static void nss_test_groups(void)
 421 {
 422         struct group *grp;
 423
 424         nss_setgrent();
 425         /* loop over all groups */
 426         while ((grp = nss_getgrent())) {
 427                 printf("Testing group %s\n", grp->gr_name);
 428                 printf("getgrent: "); print_group(grp);
 429                 grp = nss_getgrnam(grp->gr_name);
 430                 if (!grp) {
 431                         total_errors++;
 432                         printf("ERROR: can't getgrnam\n");
 433                         continue;
 434                 }
 435                 printf("getgrnam: "); print_group(grp);
 436                 grp = nss_getgrgid(grp->gr_gid);
 437                 if (!grp) {
 438                         total_errors++;
 439                         printf("ERROR: can't getgrgid\n");
 440                         continue;
 441                 }
 442                 printf("getgrgid: "); print_group(grp);
 443                 printf("\n");
 444         }
 445         nss_endgrent();
 446 }
 447
 448 static void nss_test_errors(void)
 449 {
 450         struct passwd *pwd;
 451         struct group *grp;
 452
 453         pwd = getpwnam("nosuchname");
 454         if (pwd || last_error != NSS_STATUS_NOTFOUND) {
 455                 total_errors++;
 456                 printf("ERROR Non existant user gave error %d\n", last_error);
 457         }
 458
 459         pwd = getpwuid(0xFFF0);
 460         if (pwd || last_error != NSS_STATUS_NOTFOUND) {
 461                 total_errors++;
 462                 printf("ERROR Non existant uid gave error %d\n", last_error);
 463         }
 464
 465         grp = getgrnam("nosuchgroup");
 466         if (grp || last_error != NSS_STATUS_NOTFOUND) {
 467                 total_errors++;
 468                 printf("ERROR Non existant group gave error %d\n", last_error);
 469         }
 470
 471         grp = getgrgid(0xFFF0);
 472         if (grp || last_error != NSS_STATUS_NOTFOUND) {
 473                 total_errors++;
 474                 printf("ERROR Non existant gid gave error %d\n", last_error);
 475         }
 476 }
 477
 478  int main(int argc, char *argv[])
 479 {
 480         if (argc > 1) so_path = argv[1];
 481         if (argc > 2) nss_name = argv[2];
 482
 483         nss_test_users();
 484         nss_test_groups();
 485         nss_test_errors();
 486
 487         printf("total_errors=%d\n", total_errors);
 488
 489         return total_errors;
 490 }