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 = SMB_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 = SMB_REALLOC(buf, buflen);
 177                 if (!buf) {
 178                         return NULL;
 179                 }
 180                 goto again;
 181         }
 182         if (status == NSS_STATUS_NOTFOUND) {
 183                 return NULL;
 184         }
 185         if (status != NSS_STATUS_SUCCESS) {
 186                 report_nss_error("getgrent", status);
 187                 return NULL;
 188         }
 189         return &grp;
 190 }
 191
 192 static struct group *nss_getgrnam(const char *name)
 193 {
 194         NSS_STATUS (*_nss_getgrnam_r)(const char *, struct group *, char *,
 195                                       size_t , int *) = find_fn("getgrnam_r");
 196         static struct group grp;
 197         static char *buf;
 198         static int buflen = 1000;
 199         NSS_STATUS status;
 200
 201         if (!_nss_getgrnam_r)
 202                 return NULL;
 203
 204         if (!buf)
 205                 buf = SMB_MALLOC(buflen);
 206 again:
 207         status = _nss_getgrnam_r(name, &grp, buf, buflen, &nss_errno);
 208         if (status == NSS_STATUS_TRYAGAIN) {
 209                 buflen *= 2;
 210                 buf = SMB_REALLOC(buf, buflen);
 211                 if (!buf) {
 212                         return NULL;
 213                 }
 214                 goto again;
 215         }
 216         if (status == NSS_STATUS_NOTFOUND) {
 217                 return NULL;
 218         }
 219         if (status != NSS_STATUS_SUCCESS) {
 220                 report_nss_error("getgrnam", status);
 221                 return NULL;
 222         }
 223         return &grp;
 224 }
 225
 226 static struct group *nss_getgrgid(gid_t gid)
 227 {
 228         NSS_STATUS (*_nss_getgrgid_r)(gid_t , struct group *, char *,
 229                                       size_t , int *) = find_fn("getgrgid_r");
 230         static struct group grp;
 231         static char *buf;
 232         static int buflen = 1000;
 233         NSS_STATUS status;
 234
 235         if (!_nss_getgrgid_r)
 236                 return NULL;
 237
 238         if (!buf)
 239                 buf = SMB_MALLOC(buflen);
 240
 241 again:
 242         status = _nss_getgrgid_r(gid, &grp, buf, buflen, &nss_errno);
 243         if (status == NSS_STATUS_TRYAGAIN) {
 244                 buflen *= 2;
 245                 buf = SMB_REALLOC(buf, buflen);
 246                 if (!buf) {
 247                         return NULL;
 248                 }
 249                 goto again;
 250         }
 251         if (status == NSS_STATUS_NOTFOUND) {
 252                 return NULL;
 253         }
 254         if (status != NSS_STATUS_SUCCESS) {
 255                 report_nss_error("getgrgid", status);
 256                 return NULL;
 257         }
 258         return &grp;
 259 }
 260
 261 static void nss_setgrent(void)
 262 {
 263         NSS_STATUS (*_nss_setgrent)(void) = find_fn("setgrent");
 264         NSS_STATUS status;
 265
 266         if (!_nss_setgrent)
 267                 return;
 268
 269         status = _nss_setgrent();
 270         if (status != NSS_STATUS_SUCCESS) {
 271                 report_nss_error("setgrent", status);
 272         }
 273 }
 274
 275 static void nss_endgrent(void)
 276 {
 277         NSS_STATUS (*_nss_endgrent)(void) = find_fn("endgrent");
 278         NSS_STATUS status;
 279
 280         if (!_nss_endgrent)
 281                 return;
 282
 283         status = _nss_endgrent();
 284         if (status != NSS_STATUS_SUCCESS) {
 285                 report_nss_error("endgrent", status);
 286         }
 287 }
 288
 289 static int nss_initgroups(char *user, gid_t group, gid_t **groups, long int *start, long int *size)
 290 {
 291         NSS_STATUS (*_nss_initgroups)(char *, gid_t , long int *,
 292                                       long int *, gid_t **, long int , int *) =
 293                 find_fn("initgroups_dyn");
 294         NSS_STATUS status;
 295
 296         if (!_nss_initgroups)
 297                 return NSS_STATUS_UNAVAIL;
 298
 299         status = _nss_initgroups(user, group, start, size, groups, 0, &nss_errno);
 300         if (status != NSS_STATUS_SUCCESS) {
 301                 report_nss_error("initgroups", status);
 302         }
 303         return status;
 304 }
 305
 306 static void print_passwd(struct passwd *pwd)
 307 {
 308         printf("%s:%s:%lu:%lu:%s:%s:%s\n",
 309                pwd->pw_name,
 310                pwd->pw_passwd,
 311                (unsigned long)pwd->pw_uid,
 312                (unsigned long)pwd->pw_gid,
 313                pwd->pw_gecos,
 314                pwd->pw_dir,
 315                pwd->pw_shell);
 316 }
 317
 318 static void print_group(struct group *grp)
 319 {
 320         int i;
 321         printf("%s:%s:%lu: ",
 322                grp->gr_name,
 323                grp->gr_passwd,
 324                (unsigned long)grp->gr_gid);
 325
 326         if (!grp->gr_mem[0]) {
 327                 printf("\n");
 328                 return;
 329         }
 330
 331         for (i=0; grp->gr_mem[i+1]; i++) {
 332                 printf("%s, ", grp->gr_mem[i]);
 333         }
 334         printf("%s\n", grp->gr_mem[i]);
 335 }
 336
 337 static void nss_test_initgroups(char *name, gid_t gid)
 338 {
 339         long int size = 16;
 340         long int start = 1;
 341         gid_t *groups = NULL;
 342         int i;
 343         NSS_STATUS status;
 344
 345         groups = SMB_MALLOC_ARRAY(gid_t, size);
 346         groups[0] = gid;
 347
 348         status = nss_initgroups(name, gid, &groups, &start, &size);
 349         if (status == NSS_STATUS_UNAVAIL) {
 350                 printf("No initgroups fn\n");
 351                 return;
 352         }
 353
 354         for (i=0; i<start-1; i++) {
 355                 printf("%lu, ", (unsigned long)groups[i]);
 356         }
 357         printf("%lu\n", (unsigned long)groups[i]);
 358 }
 359
 360
 361 static void nss_test_users(void)
 362 {
 363         struct passwd *pwd;
 364
 365         nss_setpwent();
 366         /* loop over all users */
 367         while ((pwd = nss_getpwent())) {
 368                 printf("Testing user %s\n", pwd->pw_name);
 369                 printf("getpwent:   "); print_passwd(pwd);
 370                 pwd = nss_getpwuid(pwd->pw_uid);
 371                 if (!pwd) {
 372                         total_errors++;
 373                         printf("ERROR: can't getpwuid\n");
 374                         continue;
 375                 }
 376                 printf("getpwuid:   "); print_passwd(pwd);
 377                 pwd = nss_getpwnam(pwd->pw_name);
 378                 if (!pwd) {
 379                         total_errors++;
 380                         printf("ERROR: can't getpwnam\n");
 381                         continue;
 382                 }
 383                 printf("getpwnam:   "); print_passwd(pwd);
 384                 printf("initgroups: "); nss_test_initgroups(pwd->pw_name, pwd->pw_gid);
 385                 printf("\n");
 386         }
 387         nss_endpwent();
 388 }
 389
 390 static void nss_test_groups(void)
 391 {
 392         struct group *grp;
 393
 394         nss_setgrent();
 395         /* loop over all groups */
 396         while ((grp = nss_getgrent())) {
 397                 printf("Testing group %s\n", grp->gr_name);
 398                 printf("getgrent: "); print_group(grp);
 399                 grp = nss_getgrnam(grp->gr_name);
 400                 if (!grp) {
 401                         total_errors++;
 402                         printf("ERROR: can't getgrnam\n");
 403                         continue;
 404                 }
 405                 printf("getgrnam: "); print_group(grp);
 406                 grp = nss_getgrgid(grp->gr_gid);
 407                 if (!grp) {
 408                         total_errors++;
 409                         printf("ERROR: can't getgrgid\n");
 410                         continue;
 411                 }
 412                 printf("getgrgid: "); print_group(grp);
 413                 printf("\n");
 414         }
 415         nss_endgrent();
 416 }
 417
 418 static void nss_test_errors(void)
 419 {
 420         struct passwd *pwd;
 421         struct group *grp;
 422
 423         pwd = getpwnam("nosuchname");
 424         if (pwd || last_error != NSS_STATUS_NOTFOUND) {
 425                 total_errors++;
 426                 printf("ERROR Non existant user gave error %d\n", last_error);
 427         }
 428
 429         pwd = getpwuid(0xFFF0);
 430         if (pwd || last_error != NSS_STATUS_NOTFOUND) {
 431                 total_errors++;
 432                 printf("ERROR Non existant uid gave error %d\n", last_error);
 433         }
 434
 435         grp = getgrnam("nosuchgroup");
 436         if (grp || last_error != NSS_STATUS_NOTFOUND) {
 437                 total_errors++;
 438                 printf("ERROR Non existant group gave error %d\n", last_error);
 439         }
 440
 441         grp = getgrgid(0xFFF0);
 442         if (grp || last_error != NSS_STATUS_NOTFOUND) {
 443                 total_errors++;
 444                 printf("ERROR Non existant gid gave error %d\n", last_error);
 445         }
 446 }
 447
 448  int main(int argc, char *argv[])
 449 {
 450         if (argc > 1) so_path = argv[1];
 451         if (argc > 2) nss_name = argv[2];
 452
 453         nss_test_users();
 454         nss_test_groups();
 455         nss_test_errors();
 456
 457         printf("total_errors=%d\n", total_errors);
 458
 459         return total_errors;
 460 }