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 #ifdef malloc
  24 #undef malloc
  25 #endif
  26 #ifdef realloc
  27 #undef realloc
  28 #endif
  29
  30 static const char *so_path = "/lib/libnss_winbind.so";
  31 static const char *nss_name = "winbind";
  32 static int nss_errno;
  33 static NSS_STATUS last_error;
  34 static int total_errors;
  35
  36 static void *find_fn(const char *name)
  37 {
  38         char *s;
  39         static void *h;
  40         void *res;
  41
  42         if (asprintf(&s, "_nss_%s_%s", nss_name, name) < 0) {
  43                 exit(1);
  44         }
  45
  46         if (!h) {
  47                 h = dlopen(so_path, RTLD_LAZY);
  48         }
  49         if (!h) {
  50                 printf("Can't open shared library %s\n", so_path);
  51                 exit(1);
  52         }
  53         res = dlsym(h, s);
  54         if (!res) {
  55                 printf("Can't find function %s\n", s);
  56                 total_errors++;
  57                 SAFE_FREE(s);
  58                 return NULL;
  59         }
  60         SAFE_FREE(s);
  61         return res;
  62 }
  63
  64 static void report_nss_error(const char *who, NSS_STATUS status)
  65 {
  66         last_error = status;
  67         total_errors++;
  68         printf("ERROR %s: NSS_STATUS=%d  %d (nss_errno=%d)\n",
  69                who, status, NSS_STATUS_SUCCESS, nss_errno);
  70 }
  71
  72 static struct passwd *nss_getpwent(void)
  73 {
  74         NSS_STATUS (*_nss_getpwent_r)(struct passwd *, char *,
  75                                       size_t , int *) =
  76                 (NSS_STATUS (*)(struct passwd *, char *,
  77                                 size_t, int *))find_fn("getpwent_r");
  78         static struct passwd pwd;
  79         static char buf[1000];
  80         NSS_STATUS status;
  81
  82         if (!_nss_getpwent_r)
  83                 return NULL;
  84
  85         status = _nss_getpwent_r(&pwd, buf, sizeof(buf), &nss_errno);
  86         if (status == NSS_STATUS_NOTFOUND) {
  87                 return NULL;
  88         }
  89         if (status != NSS_STATUS_SUCCESS) {
  90                 report_nss_error("getpwent", status);
  91                 return NULL;
  92         }
  93         return &pwd;
  94 }
  95
  96 static struct passwd *nss_getpwnam(const char *name)
  97 {
  98         NSS_STATUS (*_nss_getpwnam_r)(const char *, struct passwd *, char *,
  99                                       size_t , int *) =
 100                 (NSS_STATUS (*)(const char *, struct passwd *, char *,
 101                                 size_t, int *))find_fn("getpwnam_r");
 102         static struct passwd pwd;
 103         static char buf[1000];
 104         NSS_STATUS status;
 105
 106         if (!_nss_getpwnam_r)
 107                 return NULL;
 108
 109         status = _nss_getpwnam_r(name, &pwd, buf, sizeof(buf), &nss_errno);
 110         if (status == NSS_STATUS_NOTFOUND) {
 111                 return NULL;
 112         }
 113         if (status != NSS_STATUS_SUCCESS) {
 114                 report_nss_error("getpwnam", status);
 115                 return NULL;
 116         }
 117         return &pwd;
 118 }
 119
 120 static struct passwd *nss_getpwuid(uid_t uid)
 121 {
 122         NSS_STATUS (*_nss_getpwuid_r)(uid_t , struct passwd *, char *,
 123                                       size_t , int *) =
 124                 (NSS_STATUS (*)(uid_t, struct passwd *, char *,
 125                                 size_t, int *))find_fn("getpwuid_r");
 126         static struct passwd pwd;
 127         static char buf[1000];
 128         NSS_STATUS status;
 129
 130         if (!_nss_getpwuid_r)
 131                 return NULL;
 132
 133         status = _nss_getpwuid_r(uid, &pwd, buf, sizeof(buf), &nss_errno);
 134         if (status == NSS_STATUS_NOTFOUND) {
 135                 return NULL;
 136         }
 137         if (status != NSS_STATUS_SUCCESS) {
 138                 report_nss_error("getpwuid", status);
 139                 return NULL;
 140         }
 141         return &pwd;
 142 }
 143
 144 static void nss_setpwent(void)
 145 {
 146         NSS_STATUS (*_nss_setpwent)(void) =
 147                 (NSS_STATUS(*)(void))find_fn("setpwent");
 148         NSS_STATUS status;
 149
 150         if (!_nss_setpwent)
 151                 return;
 152
 153         status = _nss_setpwent();
 154         if (status != NSS_STATUS_SUCCESS) {
 155                 report_nss_error("setpwent", status);
 156         }
 157 }
 158
 159 static void nss_endpwent(void)
 160 {
 161         NSS_STATUS (*_nss_endpwent)(void) =
 162                 (NSS_STATUS (*)(void))find_fn("endpwent");
 163         NSS_STATUS status;
 164
 165         if (!_nss_endpwent)
 166                 return;
 167
 168         status = _nss_endpwent();
 169         if (status != NSS_STATUS_SUCCESS) {
 170                 report_nss_error("endpwent", status);
 171         }
 172 }
 173
 174
 175 static struct group *nss_getgrent(void)
 176 {
 177         NSS_STATUS (*_nss_getgrent_r)(struct group *, char *,
 178                                       size_t , int *) =
 179                 (NSS_STATUS (*)(struct group *, char *,
 180                                 size_t, int *))find_fn("getgrent_r");
 181         static struct group grp;
 182         static char *buf;
 183         static int buflen = 1024;
 184         NSS_STATUS status;
 185
 186         if (!_nss_getgrent_r)
 187                 return NULL;
 188
 189         if (!buf)
 190                 buf = (char *)malloc(buflen);
 191
 192 again:
 193         status = _nss_getgrent_r(&grp, buf, buflen, &nss_errno);
 194         if (status == NSS_STATUS_TRYAGAIN) {
 195                 buflen *= 2;
 196                 buf = (char *)realloc(buf, buflen);
 197                 if (!buf) {
 198                         return NULL;
 199                 }
 200                 goto again;
 201         }
 202         if (status == NSS_STATUS_NOTFOUND) {
 203                 SAFE_FREE(buf);
 204                 return NULL;
 205         }
 206         if (status != NSS_STATUS_SUCCESS) {
 207                 report_nss_error("getgrent", status);
 208                 SAFE_FREE(buf);
 209                 return NULL;
 210         }
 211         return &grp;
 212 }
 213
 214 static struct group *nss_getgrnam(const char *name)
 215 {
 216         NSS_STATUS (*_nss_getgrnam_r)(const char *, struct group *, char *,
 217                                       size_t , int *) =
 218                 (NSS_STATUS (*)(const char *, struct group *, char *,
 219                                 size_t, int *))find_fn("getgrnam_r");
 220         static struct group grp;
 221         static char *buf;
 222         static int buflen = 1000;
 223         NSS_STATUS status;
 224
 225         if (!_nss_getgrnam_r)
 226                 return NULL;
 227
 228         if (!buf)
 229                 buf = (char *)malloc(buflen);
 230 again:
 231         status = _nss_getgrnam_r(name, &grp, buf, buflen, &nss_errno);
 232         if (status == NSS_STATUS_TRYAGAIN) {
 233                 buflen *= 2;
 234                 buf = (char *)realloc(buf, buflen);
 235                 if (!buf) {
 236                         return NULL;
 237                 }
 238                 goto again;
 239         }
 240         if (status == NSS_STATUS_NOTFOUND) {
 241                 SAFE_FREE(buf);
 242                 return NULL;
 243         }
 244         if (status != NSS_STATUS_SUCCESS) {
 245                 report_nss_error("getgrnam", status);
 246                 SAFE_FREE(buf);
 247                 return NULL;
 248         }
 249         return &grp;
 250 }
 251
 252 static struct group *nss_getgrgid(gid_t gid)
 253 {
 254         NSS_STATUS (*_nss_getgrgid_r)(gid_t , struct group *, char *,
 255                                       size_t , int *) =
 256                 (NSS_STATUS (*)(gid_t, struct group *, char *,
 257                                 size_t, int *))find_fn("getgrgid_r");
 258         static struct group grp;
 259         static char *buf;
 260         static int buflen = 1000;
 261         NSS_STATUS status;
 262
 263         if (!_nss_getgrgid_r)
 264                 return NULL;
 265
 266         if (!buf)
 267                 buf = (char *)malloc(buflen);
 268
 269 again:
 270         status = _nss_getgrgid_r(gid, &grp, buf, buflen, &nss_errno);
 271         if (status == NSS_STATUS_TRYAGAIN) {
 272                 buflen *= 2;
 273                 buf = (char *)realloc(buf, buflen);
 274                 if (!buf) {
 275                         return NULL;
 276                 }
 277                 goto again;
 278         }
 279         if (status == NSS_STATUS_NOTFOUND) {
 280                 SAFE_FREE(buf);
 281                 return NULL;
 282         }
 283         if (status != NSS_STATUS_SUCCESS) {
 284                 report_nss_error("getgrgid", status);
 285                 SAFE_FREE(buf);
 286                 return NULL;
 287         }
 288         return &grp;
 289 }
 290
 291 static void nss_setgrent(void)
 292 {
 293         NSS_STATUS (*_nss_setgrent)(void) =
 294                 (NSS_STATUS (*)(void))find_fn("setgrent");
 295         NSS_STATUS status;
 296
 297         if (!_nss_setgrent)
 298                 return;
 299
 300         status = _nss_setgrent();
 301         if (status != NSS_STATUS_SUCCESS) {
 302                 report_nss_error("setgrent", status);
 303         }
 304 }
 305
 306 static void nss_endgrent(void)
 307 {
 308         NSS_STATUS (*_nss_endgrent)(void) =
 309                 (NSS_STATUS (*)(void))find_fn("endgrent");
 310         NSS_STATUS status;
 311
 312         if (!_nss_endgrent)
 313                 return;
 314
 315         status = _nss_endgrent();
 316         if (status != NSS_STATUS_SUCCESS) {
 317                 report_nss_error("endgrent", status);
 318         }
 319 }
 320
 321 static int nss_initgroups(char *user, gid_t group, gid_t **groups, long int *start, long int *size)
 322 {
 323         NSS_STATUS (*_nss_initgroups)(char *, gid_t , long int *,
 324                                       long int *, gid_t **, long int , int *) =
 325                 (NSS_STATUS (*)(char *, gid_t, long int *,
 326                                 long int *, gid_t **,
 327                                 long int, int *))find_fn("initgroups_dyn");
 328         NSS_STATUS status;
 329
 330         if (!_nss_initgroups)
 331                 return NSS_STATUS_UNAVAIL;
 332
 333         status = _nss_initgroups(user, group, start, size, groups, 0, &nss_errno);
 334         if (status != NSS_STATUS_SUCCESS) {
 335                 report_nss_error("initgroups", status);
 336         }
 337         return status;
 338 }
 339
 340 static void print_passwd(struct passwd *pwd)
 341 {
 342         printf("%s:%s:%lu:%lu:%s:%s:%s\n",
 343                pwd->pw_name,
 344                pwd->pw_passwd,
 345                (unsigned long)pwd->pw_uid,
 346                (unsigned long)pwd->pw_gid,
 347                pwd->pw_gecos,
 348                pwd->pw_dir,
 349                pwd->pw_shell);
 350 }
 351
 352 static void print_group(struct group *grp)
 353 {
 354         int i;
 355         printf("%s:%s:%lu:",
 356                grp->gr_name,
 357                grp->gr_passwd,
 358                (unsigned long)grp->gr_gid);
 359
 360         if (!grp->gr_mem[0]) {
 361                 printf("\n");
 362                 return;
 363         }
 364
 365         for (i=0; grp->gr_mem[i+1]; i++) {
 366                 printf("%s,", grp->gr_mem[i]);
 367         }
 368         printf("%s\n", grp->gr_mem[i]);
 369 }
 370
 371 static void nss_test_initgroups(char *name, gid_t gid)
 372 {
 373         long int size = 16;
 374         long int start = 1;
 375         gid_t *groups = NULL;
 376         int i;
 377         NSS_STATUS status;
 378
 379         groups = (gid_t *)malloc(size);
 380         groups[0] = gid;
 381
 382         status = nss_initgroups(name, gid, &groups, &start, &size);
 383         if (status == NSS_STATUS_UNAVAIL) {
 384                 printf("No initgroups fn\n");
 385                 return;
 386         }
 387
 388         for (i=0; i<start-1; i++) {
 389                 printf("%lu, ", (unsigned long)groups[i]);
 390         }
 391         printf("%lu\n", (unsigned long)groups[i]);
 392 }
 393
 394
 395 static void nss_test_users(void)
 396 {
 397         struct passwd *pwd;
 398
 399         nss_setpwent();
 400         /* loop over all users */
 401         while ((pwd = nss_getpwent())) {
 402                 printf("Testing user %s\n", pwd->pw_name);
 403                 printf("getpwent:   "); print_passwd(pwd);
 404                 pwd = nss_getpwuid(pwd->pw_uid);
 405                 if (!pwd) {
 406                         total_errors++;
 407                         printf("ERROR: can't getpwuid\n");
 408                         continue;
 409                 }
 410                 printf("getpwuid:   "); print_passwd(pwd);
 411                 pwd = nss_getpwnam(pwd->pw_name);
 412                 if (!pwd) {
 413                         total_errors++;
 414                         printf("ERROR: can't getpwnam\n");
 415                         continue;
 416                 }
 417                 printf("getpwnam:   "); print_passwd(pwd);
 418                 printf("initgroups: "); nss_test_initgroups(pwd->pw_name, pwd->pw_gid);
 419                 printf("\n");
 420         }
 421         nss_endpwent();
 422 }
 423
 424 static void nss_test_groups(void)
 425 {
 426         struct group *grp;
 427
 428         nss_setgrent();
 429         /* loop over all groups */
 430         while ((grp = nss_getgrent())) {
 431                 printf("Testing group %s\n", grp->gr_name);
 432                 printf("getgrent: "); print_group(grp);
 433                 grp = nss_getgrnam(grp->gr_name);
 434                 if (!grp) {
 435                         total_errors++;
 436                         printf("ERROR: can't getgrnam\n");
 437                         continue;
 438                 }
 439                 printf("getgrnam: "); print_group(grp);
 440                 grp = nss_getgrgid(grp->gr_gid);
 441                 if (!grp) {
 442                         total_errors++;
 443                         printf("ERROR: can't getgrgid\n");
 444                         continue;
 445                 }
 446                 printf("getgrgid: "); print_group(grp);
 447                 printf("\n");
 448         }
 449         nss_endgrent();
 450 }
 451
 452 static void nss_test_errors(void)
 453 {
 454         struct passwd *pwd;
 455         struct group *grp;
 456
 457         pwd = getpwnam("nosuchname");
 458         if (pwd || last_error != NSS_STATUS_NOTFOUND) {
 459                 total_errors++;
 460                 printf("ERROR Non existant user gave error %d\n", last_error);
 461         }
 462
 463         pwd = getpwuid(0xFFF0);
 464         if (pwd || last_error != NSS_STATUS_NOTFOUND) {
 465                 total_errors++;
 466                 printf("ERROR Non existant uid gave error %d\n", last_error);
 467         }
 468
 469         grp = getgrnam("nosuchgroup");
 470         if (grp || last_error != NSS_STATUS_NOTFOUND) {
 471                 total_errors++;
 472                 printf("ERROR Non existant group gave error %d\n", last_error);
 473         }
 474
 475         grp = getgrgid(0xFFF0);
 476         if (grp || last_error != NSS_STATUS_NOTFOUND) {
 477                 total_errors++;
 478                 printf("ERROR Non existant gid gave error %d\n", last_error);
 479         }
 480 }
 481
 482  int main(int argc, char *argv[])
 483 {
 484         if (argc > 1) so_path = argv[1];
 485         if (argc > 2) nss_name = argv[2];
 486
 487         nss_test_users();
 488         nss_test_groups();
 489         nss_test_errors();
 490
 491         printf("total_errors=%d\n", total_errors);
 492
 493         return total_errors;
 494 }