source3/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         pstring s;
  32         static void *h;
  33         void *res;
  34
  35         pstr_sprintf(s, "_nss_%s_%s", nss_name, name);
  36
  37         if (!h) {
  38                 h = sys_dlopen(so_path, RTLD_LAZY);
  39         }
  40         if (!h) {
  41                 printf("Can't open shared library %s\n", so_path);
  42                 exit(1);
  43         }
  44         res = sys_dlsym(h, s);
  45         if (!res) {
  46                 printf("Can't find function %s\n", s);
  47                 total_errors++;
  48                 return NULL;
  49         }
  50         return res;
  51 }
  52
  53 static void report_nss_error(const char *who, NSS_STATUS status)
  54 {
  55         last_error = status;
  56         total_errors++;
  57         printf("ERROR %s: NSS_STATUS=%d  %d (nss_errno=%d)\n",
  58                who, status, NSS_STATUS_SUCCESS, nss_errno);
  59 }
  60
  61 static struct passwd *nss_getpwent(void)
  62 {
  63         NSS_STATUS (*_nss_getpwent_r)(struct passwd *, char *,
  64                                       size_t , int *) =
  65                 (NSS_STATUS (*)(struct passwd *, char *,
  66                                 size_t, int *))find_fn("getpwent_r");
  67         static struct passwd pwd;
  68         static char buf[1000];
  69         NSS_STATUS status;
  70
  71         if (!_nss_getpwent_r)
  72                 return NULL;
  73
  74         status = _nss_getpwent_r(&pwd, buf, sizeof(buf), &nss_errno);
  75         if (status == NSS_STATUS_NOTFOUND) {
  76                 return NULL;
  77         }
  78         if (status != NSS_STATUS_SUCCESS) {
  79                 report_nss_error("getpwent", status);
  80                 return NULL;
  81         }
  82         return &pwd;
  83 }
  84
  85 static struct passwd *nss_getpwnam(const char *name)
  86 {
  87         NSS_STATUS (*_nss_getpwnam_r)(const char *, struct passwd *, char *,
  88                                       size_t , int *) =
  89                 (NSS_STATUS (*)(const char *, struct passwd *, char *,
  90                                 size_t, int *))find_fn("getpwnam_r");
  91         static struct passwd pwd;
  92         static char buf[1000];
  93         NSS_STATUS status;
  94
  95         if (!_nss_getpwnam_r)
  96                 return NULL;
  97
  98         status = _nss_getpwnam_r(name, &pwd, buf, sizeof(buf), &nss_errno);
  99         if (status == NSS_STATUS_NOTFOUND) {
 100                 return NULL;
 101         }
 102         if (status != NSS_STATUS_SUCCESS) {
 103                 report_nss_error("getpwnam", status);
 104                 return NULL;
 105         }
 106         return &pwd;
 107 }
 108
 109 static struct passwd *nss_getpwuid(uid_t uid)
 110 {
 111         NSS_STATUS (*_nss_getpwuid_r)(uid_t , struct passwd *, char *,
 112                                       size_t , int *) =
 113                 (NSS_STATUS (*)(uid_t, struct passwd *, char *,
 114                                 size_t, int *))find_fn("getpwuid_r");
 115         static struct passwd pwd;
 116         static char buf[1000];
 117         NSS_STATUS status;
 118
 119         if (!_nss_getpwuid_r)
 120                 return NULL;
 121
 122         status = _nss_getpwuid_r(uid, &pwd, buf, sizeof(buf), &nss_errno);
 123         if (status == NSS_STATUS_NOTFOUND) {
 124                 return NULL;
 125         }
 126         if (status != NSS_STATUS_SUCCESS) {
 127                 report_nss_error("getpwuid", status);
 128                 return NULL;
 129         }
 130         return &pwd;
 131 }
 132
 133 static void nss_setpwent(void)
 134 {
 135         NSS_STATUS (*_nss_setpwent)(void) =
 136                 (NSS_STATUS(*)(void))find_fn("setpwent");
 137         NSS_STATUS status;
 138
 139         if (!_nss_setpwent)
 140                 return;
 141
 142         status = _nss_setpwent();
 143         if (status != NSS_STATUS_SUCCESS) {
 144                 report_nss_error("setpwent", status);
 145         }
 146 }
 147
 148 static void nss_endpwent(void)
 149 {
 150         NSS_STATUS (*_nss_endpwent)(void) =
 151                 (NSS_STATUS (*)(void))find_fn("endpwent");
 152         NSS_STATUS status;
 153
 154         if (!_nss_endpwent)
 155                 return;
 156
 157         status = _nss_endpwent();
 158         if (status != NSS_STATUS_SUCCESS) {
 159                 report_nss_error("endpwent", status);
 160         }
 161 }
 162
 163
 164 static struct group *nss_getgrent(void)
 165 {
 166         NSS_STATUS (*_nss_getgrent_r)(struct group *, char *,
 167                                       size_t , int *) =
 168                 (NSS_STATUS (*)(struct group *, char *,
 169                                 size_t, int *))find_fn("getgrent_r");
 170         static struct group grp;
 171         static char *buf;
 172         static int buflen = 1024;
 173         NSS_STATUS status;
 174
 175         if (!_nss_getgrent_r)
 176                 return NULL;
 177
 178         if (!buf)
 179                 buf = SMB_MALLOC_ARRAY(char, buflen);
 180
 181 again:
 182         status = _nss_getgrent_r(&grp, buf, buflen, &nss_errno);
 183         if (status == NSS_STATUS_TRYAGAIN) {
 184                 buflen *= 2;
 185                 buf = SMB_REALLOC_ARRAY(buf, char, buflen);
 186                 if (!buf) {
 187                         return NULL;
 188                 }
 189                 goto again;
 190         }
 191         if (status == NSS_STATUS_NOTFOUND) {
 192                 SAFE_FREE(buf);
 193                 return NULL;
 194         }
 195         if (status != NSS_STATUS_SUCCESS) {
 196                 report_nss_error("getgrent", status);
 197                 SAFE_FREE(buf);
 198                 return NULL;
 199         }
 200         SAFE_FREE(buf);
 201         return &grp;
 202 }
 203
 204 static struct group *nss_getgrnam(const char *name)
 205 {
 206         NSS_STATUS (*_nss_getgrnam_r)(const char *, struct group *, char *,
 207                                       size_t , int *) =
 208                 (NSS_STATUS (*)(const char *, struct group *, char *,
 209                                 size_t, int *))find_fn("getgrnam_r");
 210         static struct group grp;
 211         static char *buf;
 212         static int buflen = 1000;
 213         NSS_STATUS status;
 214
 215         if (!_nss_getgrnam_r)
 216                 return NULL;
 217
 218         if (!buf)
 219                 buf = SMB_MALLOC_ARRAY(char, buflen);
 220 again:
 221         status = _nss_getgrnam_r(name, &grp, buf, buflen, &nss_errno);
 222         if (status == NSS_STATUS_TRYAGAIN) {
 223                 buflen *= 2;
 224                 buf = SMB_REALLOC_ARRAY(buf, char, buflen);
 225                 if (!buf) {
 226                         return NULL;
 227                 }
 228                 goto again;
 229         }
 230         if (status == NSS_STATUS_NOTFOUND) {
 231                 SAFE_FREE(buf);
 232                 return NULL;
 233         }
 234         if (status != NSS_STATUS_SUCCESS) {
 235                 report_nss_error("getgrnam", status);
 236                 SAFE_FREE(buf);
 237                 return NULL;
 238         }
 239         SAFE_FREE(buf);
 240         return &grp;
 241 }
 242
 243 static struct group *nss_getgrgid(gid_t gid)
 244 {
 245         NSS_STATUS (*_nss_getgrgid_r)(gid_t , struct group *, char *,
 246                                       size_t , int *) =
 247                 (NSS_STATUS (*)(gid_t, struct group *, char *,
 248                                 size_t, int *))find_fn("getgrgid_r");
 249         static struct group grp;
 250         static char *buf;
 251         static int buflen = 1000;
 252         NSS_STATUS status;
 253
 254         if (!_nss_getgrgid_r)
 255                 return NULL;
 256
 257         if (!buf)
 258                 buf = SMB_MALLOC_ARRAY(char, buflen);
 259
 260 again:
 261         status = _nss_getgrgid_r(gid, &grp, buf, buflen, &nss_errno);
 262         if (status == NSS_STATUS_TRYAGAIN) {
 263                 buflen *= 2;
 264                 buf = SMB_REALLOC_ARRAY(buf, char, buflen);
 265                 if (!buf) {
 266                         return NULL;
 267                 }
 268                 goto again;
 269         }
 270         if (status == NSS_STATUS_NOTFOUND) {
 271                 SAFE_FREE(buf);
 272                 return NULL;
 273         }
 274         if (status != NSS_STATUS_SUCCESS) {
 275                 report_nss_error("getgrgid", status);
 276                 SAFE_FREE(buf);
 277                 return NULL;
 278         }
 279         SAFE_FREE(buf);
 280         return &grp;
 281 }
 282
 283 static void nss_setgrent(void)
 284 {
 285         NSS_STATUS (*_nss_setgrent)(void) =
 286                 (NSS_STATUS (*)(void))find_fn("setgrent");
 287         NSS_STATUS status;
 288
 289         if (!_nss_setgrent)
 290                 return;
 291
 292         status = _nss_setgrent();
 293         if (status != NSS_STATUS_SUCCESS) {
 294                 report_nss_error("setgrent", status);
 295         }
 296 }
 297
 298 static void nss_endgrent(void)
 299 {
 300         NSS_STATUS (*_nss_endgrent)(void) =
 301                 (NSS_STATUS (*)(void))find_fn("endgrent");
 302         NSS_STATUS status;
 303
 304         if (!_nss_endgrent)
 305                 return;
 306
 307         status = _nss_endgrent();
 308         if (status != NSS_STATUS_SUCCESS) {
 309                 report_nss_error("endgrent", status);
 310         }
 311 }
 312
 313 static int nss_initgroups(char *user, gid_t group, gid_t **groups, long int *start, long int *size)
 314 {
 315         NSS_STATUS (*_nss_initgroups)(char *, gid_t , long int *,
 316                                       long int *, gid_t **, long int , int *) =
 317                 (NSS_STATUS (*)(char *, gid_t, long int *,
 318                                 long int *, gid_t **,
 319                                 long int, int *))find_fn("initgroups_dyn");
 320         NSS_STATUS status;
 321
 322         if (!_nss_initgroups)
 323                 return NSS_STATUS_UNAVAIL;
 324
 325         status = _nss_initgroups(user, group, start, size, groups, 0, &nss_errno);
 326         if (status != NSS_STATUS_SUCCESS) {
 327                 report_nss_error("initgroups", status);
 328         }
 329         return status;
 330 }
 331
 332 static void print_passwd(struct passwd *pwd)
 333 {
 334         printf("%s:%s:%lu:%lu:%s:%s:%s\n",
 335                pwd->pw_name,
 336                pwd->pw_passwd,
 337                (unsigned long)pwd->pw_uid,
 338                (unsigned long)pwd->pw_gid,
 339                pwd->pw_gecos,
 340                pwd->pw_dir,
 341                pwd->pw_shell);
 342 }
 343
 344 static void print_group(struct group *grp)
 345 {
 346         int i;
 347         printf("%s:%s:%lu: ",
 348                grp->gr_name,
 349                grp->gr_passwd,
 350                (unsigned long)grp->gr_gid);
 351
 352         if (!grp->gr_mem[0]) {
 353                 printf("\n");
 354                 return;
 355         }
 356
 357         for (i=0; grp->gr_mem[i+1]; i++) {
 358                 printf("%s, ", grp->gr_mem[i]);
 359         }
 360         printf("%s\n", grp->gr_mem[i]);
 361 }
 362
 363 static void nss_test_initgroups(char *name, gid_t gid)
 364 {
 365         long int size = 16;
 366         long int start = 1;
 367         gid_t *groups = NULL;
 368         int i;
 369         NSS_STATUS status;
 370
 371         groups = SMB_MALLOC_ARRAY(gid_t, size);
 372         groups[0] = gid;
 373
 374         status = nss_initgroups(name, gid, &groups, &start, &size);
 375         if (status == NSS_STATUS_UNAVAIL) {
 376                 printf("No initgroups fn\n");
 377                 return;
 378         }
 379
 380         for (i=0; i<start-1; i++) {
 381                 printf("%lu, ", (unsigned long)groups[i]);
 382         }
 383         printf("%lu\n", (unsigned long)groups[i]);
 384 }
 385
 386
 387 static void nss_test_users(void)
 388 {
 389         struct passwd *pwd;
 390
 391         nss_setpwent();
 392         /* loop over all users */
 393         while ((pwd = nss_getpwent())) {
 394                 printf("Testing user %s\n", pwd->pw_name);
 395                 printf("getpwent:   "); print_passwd(pwd);
 396                 pwd = nss_getpwuid(pwd->pw_uid);
 397                 if (!pwd) {
 398                         total_errors++;
 399                         printf("ERROR: can't getpwuid\n");
 400                         continue;
 401                 }
 402                 printf("getpwuid:   "); print_passwd(pwd);
 403                 pwd = nss_getpwnam(pwd->pw_name);
 404                 if (!pwd) {
 405                         total_errors++;
 406                         printf("ERROR: can't getpwnam\n");
 407                         continue;
 408                 }
 409                 printf("getpwnam:   "); print_passwd(pwd);
 410                 printf("initgroups: "); nss_test_initgroups(pwd->pw_name, pwd->pw_gid);
 411                 printf("\n");
 412         }
 413         nss_endpwent();
 414 }
 415
 416 static void nss_test_groups(void)
 417 {
 418         struct group *grp;
 419
 420         nss_setgrent();
 421         /* loop over all groups */
 422         while ((grp = nss_getgrent())) {
 423                 printf("Testing group %s\n", grp->gr_name);
 424                 printf("getgrent: "); print_group(grp);
 425                 grp = nss_getgrnam(grp->gr_name);
 426                 if (!grp) {
 427                         total_errors++;
 428                         printf("ERROR: can't getgrnam\n");
 429                         continue;
 430                 }
 431                 printf("getgrnam: "); print_group(grp);
 432                 grp = nss_getgrgid(grp->gr_gid);
 433                 if (!grp) {
 434                         total_errors++;
 435                         printf("ERROR: can't getgrgid\n");
 436                         continue;
 437                 }
 438                 printf("getgrgid: "); print_group(grp);
 439                 printf("\n");
 440         }
 441         nss_endgrent();
 442 }
 443
 444 static void nss_test_errors(void)
 445 {
 446         struct passwd *pwd;
 447         struct group *grp;
 448
 449         pwd = getpwnam("nosuchname");
 450         if (pwd || last_error != NSS_STATUS_NOTFOUND) {
 451                 total_errors++;
 452                 printf("ERROR Non existant user gave error %d\n", last_error);
 453         }
 454
 455         pwd = getpwuid(0xFFF0);
 456         if (pwd || last_error != NSS_STATUS_NOTFOUND) {
 457                 total_errors++;
 458                 printf("ERROR Non existant uid gave error %d\n", last_error);
 459         }
 460
 461         grp = getgrnam("nosuchgroup");
 462         if (grp || last_error != NSS_STATUS_NOTFOUND) {
 463                 total_errors++;
 464                 printf("ERROR Non existant group gave error %d\n", last_error);
 465         }
 466
 467         grp = getgrgid(0xFFF0);
 468         if (grp || last_error != NSS_STATUS_NOTFOUND) {
 469                 total_errors++;
 470                 printf("ERROR Non existant gid gave error %d\n", last_error);
 471         }
 472 }
 473
 474  int main(int argc, char *argv[])
 475 {
 476         if (argc > 1) so_path = argv[1];
 477         if (argc > 2) nss_name = argv[2];
 478
 479         nss_test_users();
 480         nss_test_groups();
 481         nss_test_errors();
 482
 483         printf("total_errors=%d\n", total_errors);
 484
 485         return total_errors;
 486 }