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 2 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, write to the Free Software
  19    Foundation, Inc., 675 Mass Ave, Cambridge, MA 02139, USA.
  20 */
  21
  22 #include "includes.h"
  23
  24 static const char *so_path = "/lib/libnss_winbind.so";
  25 static const char *nss_name = "winbind";
  26 static int nss_errno;
  27 static NSS_STATUS last_error;
  28 static int total_errors;
  29
  30 static void *find_fn(const char *name)
  31 {
  32         pstring s;
  33         static void *h;
  34         void *res;
  35
  36         pstr_sprintf(s, "_nss_%s_%s", nss_name, name);
  37
  38         if (!h) {
  39                 h = sys_dlopen(so_path, RTLD_LAZY);
  40         }
  41         if (!h) {
  42                 printf("Can't open shared library %s\n", so_path);
  43                 exit(1);
  44         }
  45         res = sys_dlsym(h, s);
  46         if (!res) {
  47                 printf("Can't find function %s\n", s);
  48                 total_errors++;
  49                 return NULL;
  50         }
  51         return res;
  52 }
  53
  54 static void report_nss_error(const char *who, NSS_STATUS status)
  55 {
  56         last_error = status;
  57         total_errors++;
  58         printf("ERROR %s: NSS_STATUS=%d  %d (nss_errno=%d)\n",
  59                who, status, NSS_STATUS_SUCCESS, nss_errno);
  60 }
  61
  62 static struct passwd *nss_getpwent(void)
  63 {
  64         NSS_STATUS (*_nss_getpwent_r)(struct passwd *, char *,
  65                                       size_t , int *) =
  66                 (NSS_STATUS (*)(struct passwd *, char *,
  67                                 size_t, int *))find_fn("getpwent_r");
  68         static struct passwd pwd;
  69         static char buf[1000];
  70         NSS_STATUS status;
  71
  72         if (!_nss_getpwent_r)
  73                 return NULL;
  74
  75         status = _nss_getpwent_r(&pwd, buf, sizeof(buf), &nss_errno);
  76         if (status == NSS_STATUS_NOTFOUND) {
  77                 return NULL;
  78         }
  79         if (status != NSS_STATUS_SUCCESS) {
  80                 report_nss_error("getpwent", status);
  81                 return NULL;
  82         }
  83         return &pwd;
  84 }
  85
  86 static struct passwd *nss_getpwnam(const char *name)
  87 {
  88         NSS_STATUS (*_nss_getpwnam_r)(const char *, struct passwd *, char *,
  89                                       size_t , int *) =
  90                 (NSS_STATUS (*)(const char *, struct passwd *, char *,
  91                                 size_t, int *))find_fn("getpwnam_r");
  92         static struct passwd pwd;
  93         static char buf[1000];
  94         NSS_STATUS status;
  95
  96         if (!_nss_getpwnam_r)
  97                 return NULL;
  98
  99         status = _nss_getpwnam_r(name, &pwd, buf, sizeof(buf), &nss_errno);
 100         if (status == NSS_STATUS_NOTFOUND) {
 101                 return NULL;
 102         }
 103         if (status != NSS_STATUS_SUCCESS) {
 104                 report_nss_error("getpwnam", status);
 105                 return NULL;
 106         }
 107         return &pwd;
 108 }
 109
 110 static struct passwd *nss_getpwuid(uid_t uid)
 111 {
 112         NSS_STATUS (*_nss_getpwuid_r)(uid_t , struct passwd *, char *,
 113                                       size_t , int *) =
 114                 (NSS_STATUS (*)(uid_t, struct passwd *, char *,
 115                                 size_t, int *))find_fn("getpwuid_r");
 116         static struct passwd pwd;
 117         static char buf[1000];
 118         NSS_STATUS status;
 119
 120         if (!_nss_getpwuid_r)
 121                 return NULL;
 122
 123         status = _nss_getpwuid_r(uid, &pwd, buf, sizeof(buf), &nss_errno);
 124         if (status == NSS_STATUS_NOTFOUND) {
 125                 return NULL;
 126         }
 127         if (status != NSS_STATUS_SUCCESS) {
 128                 report_nss_error("getpwuid", status);
 129                 return NULL;
 130         }
 131         return &pwd;
 132 }
 133
 134 static void nss_setpwent(void)
 135 {
 136         NSS_STATUS (*_nss_setpwent)(void) =
 137                 (NSS_STATUS(*)(void))find_fn("setpwent");
 138         NSS_STATUS status;
 139
 140         if (!_nss_setpwent)
 141                 return;
 142
 143         status = _nss_setpwent();
 144         if (status != NSS_STATUS_SUCCESS) {
 145                 report_nss_error("setpwent", status);
 146         }
 147 }
 148
 149 static void nss_endpwent(void)
 150 {
 151         NSS_STATUS (*_nss_endpwent)(void) =
 152                 (NSS_STATUS (*)(void))find_fn("endpwent");
 153         NSS_STATUS status;
 154
 155         if (!_nss_endpwent)
 156                 return;
 157
 158         status = _nss_endpwent();
 159         if (status != NSS_STATUS_SUCCESS) {
 160                 report_nss_error("endpwent", status);
 161         }
 162 }
 163
 164
 165 static struct group *nss_getgrent(void)
 166 {
 167         NSS_STATUS (*_nss_getgrent_r)(struct group *, char *,
 168                                       size_t , int *) =
 169                 (NSS_STATUS (*)(struct group *, char *,
 170                                 size_t, int *))find_fn("getgrent_r");
 171         static struct group grp;
 172         static char *buf;
 173         static int buflen = 1024;
 174         NSS_STATUS status;
 175
 176         if (!_nss_getgrent_r)
 177                 return NULL;
 178
 179         if (!buf)
 180                 buf = SMB_MALLOC_ARRAY(char, buflen);
 181
 182 again:
 183         status = _nss_getgrent_r(&grp, buf, buflen, &nss_errno);
 184         if (status == NSS_STATUS_TRYAGAIN) {
 185                 buflen *= 2;
 186                 buf = SMB_REALLOC_ARRAY(buf, char, buflen);
 187                 if (!buf) {
 188                         return NULL;
 189                 }
 190                 goto again;
 191         }
 192         if (status == NSS_STATUS_NOTFOUND) {
 193                 SAFE_FREE(buf);
 194                 return NULL;
 195         }
 196         if (status != NSS_STATUS_SUCCESS) {
 197                 report_nss_error("getgrent", status);
 198                 SAFE_FREE(buf);
 199                 return NULL;
 200         }
 201         SAFE_FREE(buf);
 202         return &grp;
 203 }
 204
 205 static struct group *nss_getgrnam(const char *name)
 206 {
 207         NSS_STATUS (*_nss_getgrnam_r)(const char *, struct group *, char *,
 208                                       size_t , int *) =
 209                 (NSS_STATUS (*)(const char *, struct group *, char *,
 210                                 size_t, int *))find_fn("getgrnam_r");
 211         static struct group grp;
 212         static char *buf;
 213         static int buflen = 1000;
 214         NSS_STATUS status;
 215
 216         if (!_nss_getgrnam_r)
 217                 return NULL;
 218
 219         if (!buf)
 220                 buf = SMB_MALLOC_ARRAY(char, buflen);
 221 again:
 222         status = _nss_getgrnam_r(name, &grp, buf, buflen, &nss_errno);
 223         if (status == NSS_STATUS_TRYAGAIN) {
 224                 buflen *= 2;
 225                 buf = SMB_REALLOC_ARRAY(buf, char, buflen);
 226                 if (!buf) {
 227                         return NULL;
 228                 }
 229                 goto again;
 230         }
 231         if (status == NSS_STATUS_NOTFOUND) {
 232                 SAFE_FREE(buf);
 233                 return NULL;
 234         }
 235         if (status != NSS_STATUS_SUCCESS) {
 236                 report_nss_error("getgrnam", status);
 237                 SAFE_FREE(buf);
 238                 return NULL;
 239         }
 240         SAFE_FREE(buf);
 241         return &grp;
 242 }
 243
 244 static struct group *nss_getgrgid(gid_t gid)
 245 {
 246         NSS_STATUS (*_nss_getgrgid_r)(gid_t , struct group *, char *,
 247                                       size_t , int *) =
 248                 (NSS_STATUS (*)(gid_t, struct group *, char *,
 249                                 size_t, int *))find_fn("getgrgid_r");
 250         static struct group grp;
 251         static char *buf;
 252         static int buflen = 1000;
 253         NSS_STATUS status;
 254
 255         if (!_nss_getgrgid_r)
 256                 return NULL;
 257
 258         if (!buf)
 259                 buf = SMB_MALLOC_ARRAY(char, buflen);
 260
 261 again:
 262         status = _nss_getgrgid_r(gid, &grp, buf, buflen, &nss_errno);
 263         if (status == NSS_STATUS_TRYAGAIN) {
 264                 buflen *= 2;
 265                 buf = SMB_REALLOC_ARRAY(buf, char, buflen);
 266                 if (!buf) {
 267                         return NULL;
 268                 }
 269                 goto again;
 270         }
 271         if (status == NSS_STATUS_NOTFOUND) {
 272                 SAFE_FREE(buf);
 273                 return NULL;
 274         }
 275         if (status != NSS_STATUS_SUCCESS) {
 276                 report_nss_error("getgrgid", status);
 277                 SAFE_FREE(buf);
 278                 return NULL;
 279         }
 280         SAFE_FREE(buf);
 281         return &grp;
 282 }
 283
 284 static void nss_setgrent(void)
 285 {
 286         NSS_STATUS (*_nss_setgrent)(void) =
 287                 (NSS_STATUS (*)(void))find_fn("setgrent");
 288         NSS_STATUS status;
 289
 290         if (!_nss_setgrent)
 291                 return;
 292
 293         status = _nss_setgrent();
 294         if (status != NSS_STATUS_SUCCESS) {
 295                 report_nss_error("setgrent", status);
 296         }
 297 }
 298
 299 static void nss_endgrent(void)
 300 {
 301         NSS_STATUS (*_nss_endgrent)(void) =
 302                 (NSS_STATUS (*)(void))find_fn("endgrent");
 303         NSS_STATUS status;
 304
 305         if (!_nss_endgrent)
 306                 return;
 307
 308         status = _nss_endgrent();
 309         if (status != NSS_STATUS_SUCCESS) {
 310                 report_nss_error("endgrent", status);
 311         }
 312 }
 313
 314 static int nss_initgroups(char *user, gid_t group, gid_t **groups, long int *start, long int *size)
 315 {
 316         NSS_STATUS (*_nss_initgroups)(char *, gid_t , long int *,
 317                                       long int *, gid_t **, long int , int *) =
 318                 (NSS_STATUS (*)(char *, gid_t, long int *,
 319                                 long int *, gid_t **,
 320                                 long int, int *))find_fn("initgroups_dyn");
 321         NSS_STATUS status;
 322
 323         if (!_nss_initgroups)
 324                 return NSS_STATUS_UNAVAIL;
 325
 326         status = _nss_initgroups(user, group, start, size, groups, 0, &nss_errno);
 327         if (status != NSS_STATUS_SUCCESS) {
 328                 report_nss_error("initgroups", status);
 329         }
 330         return status;
 331 }
 332
 333 static void print_passwd(struct passwd *pwd)
 334 {
 335         printf("%s:%s:%lu:%lu:%s:%s:%s\n",
 336                pwd->pw_name,
 337                pwd->pw_passwd,
 338                (unsigned long)pwd->pw_uid,
 339                (unsigned long)pwd->pw_gid,
 340                pwd->pw_gecos,
 341                pwd->pw_dir,
 342                pwd->pw_shell);
 343 }
 344
 345 static void print_group(struct group *grp)
 346 {
 347         int i;
 348         printf("%s:%s:%lu: ",
 349                grp->gr_name,
 350                grp->gr_passwd,
 351                (unsigned long)grp->gr_gid);
 352
 353         if (!grp->gr_mem[0]) {
 354                 printf("\n");
 355                 return;
 356         }
 357
 358         for (i=0; grp->gr_mem[i+1]; i++) {
 359                 printf("%s, ", grp->gr_mem[i]);
 360         }
 361         printf("%s\n", grp->gr_mem[i]);
 362 }
 363
 364 static void nss_test_initgroups(char *name, gid_t gid)
 365 {
 366         long int size = 16;
 367         long int start = 1;
 368         gid_t *groups = NULL;
 369         int i;
 370         NSS_STATUS status;
 371
 372         groups = SMB_MALLOC_ARRAY(gid_t, size);
 373         groups[0] = gid;
 374
 375         status = nss_initgroups(name, gid, &groups, &start, &size);
 376         if (status == NSS_STATUS_UNAVAIL) {
 377                 printf("No initgroups fn\n");
 378                 return;
 379         }
 380
 381         for (i=0; i<start-1; i++) {
 382                 printf("%lu, ", (unsigned long)groups[i]);
 383         }
 384         printf("%lu\n", (unsigned long)groups[i]);
 385 }
 386
 387
 388 static void nss_test_users(void)
 389 {
 390         struct passwd *pwd;
 391
 392         nss_setpwent();
 393         /* loop over all users */
 394         while ((pwd = nss_getpwent())) {
 395                 printf("Testing user %s\n", pwd->pw_name);
 396                 printf("getpwent:   "); print_passwd(pwd);
 397                 pwd = nss_getpwuid(pwd->pw_uid);
 398                 if (!pwd) {
 399                         total_errors++;
 400                         printf("ERROR: can't getpwuid\n");
 401                         continue;
 402                 }
 403                 printf("getpwuid:   "); print_passwd(pwd);
 404                 pwd = nss_getpwnam(pwd->pw_name);
 405                 if (!pwd) {
 406                         total_errors++;
 407                         printf("ERROR: can't getpwnam\n");
 408                         continue;
 409                 }
 410                 printf("getpwnam:   "); print_passwd(pwd);
 411                 printf("initgroups: "); nss_test_initgroups(pwd->pw_name, pwd->pw_gid);
 412                 printf("\n");
 413         }
 414         nss_endpwent();
 415 }
 416
 417 static void nss_test_groups(void)
 418 {
 419         struct group *grp;
 420
 421         nss_setgrent();
 422         /* loop over all groups */
 423         while ((grp = nss_getgrent())) {
 424                 printf("Testing group %s\n", grp->gr_name);
 425                 printf("getgrent: "); print_group(grp);
 426                 grp = nss_getgrnam(grp->gr_name);
 427                 if (!grp) {
 428                         total_errors++;
 429                         printf("ERROR: can't getgrnam\n");
 430                         continue;
 431                 }
 432                 printf("getgrnam: "); print_group(grp);
 433                 grp = nss_getgrgid(grp->gr_gid);
 434                 if (!grp) {
 435                         total_errors++;
 436                         printf("ERROR: can't getgrgid\n");
 437                         continue;
 438                 }
 439                 printf("getgrgid: "); print_group(grp);
 440                 printf("\n");
 441         }
 442         nss_endgrent();
 443 }
 444
 445 static void nss_test_errors(void)
 446 {
 447         struct passwd *pwd;
 448         struct group *grp;
 449
 450         pwd = getpwnam("nosuchname");
 451         if (pwd || last_error != NSS_STATUS_NOTFOUND) {
 452                 total_errors++;
 453                 printf("ERROR Non existant user gave error %d\n", last_error);
 454         }
 455
 456         pwd = getpwuid(0xFFF0);
 457         if (pwd || last_error != NSS_STATUS_NOTFOUND) {
 458                 total_errors++;
 459                 printf("ERROR Non existant uid gave error %d\n", last_error);
 460         }
 461
 462         grp = getgrnam("nosuchgroup");
 463         if (grp || last_error != NSS_STATUS_NOTFOUND) {
 464                 total_errors++;
 465                 printf("ERROR Non existant group gave error %d\n", last_error);
 466         }
 467
 468         grp = getgrgid(0xFFF0);
 469         if (grp || last_error != NSS_STATUS_NOTFOUND) {
 470                 total_errors++;
 471                 printf("ERROR Non existant gid gave error %d\n", last_error);
 472         }
 473 }
 474
 475  int main(int argc, char *argv[])
 476 {
 477         if (argc > 1) so_path = argv[1];
 478         if (argc > 2) nss_name = argv[2];
 479
 480         nss_test_users();
 481         nss_test_groups();
 482         nss_test_errors();
 483
 484         printf("total_errors=%d\n", total_errors);
 485
 486         return total_errors;
 487 }