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