ctdb/tests/src/protocol_util_test.c

   1 /*
   2    protocol utilities tests
   3
   4    Copyright (C) Martin Schwenke  2016
   5
   6    This program is free software; you can redistribute it and/or modify
   7    it under the terms of the GNU General Public License as published by
   8    the Free Software Foundation; either version 3 of the License, or
   9    (at your option) any later version.
  10
  11    This program is distributed in the hope that it will be useful,
  12    but WITHOUT ANY WARRANTY; without even the implied warranty of
  13    MERCHANTABILITY or FITNESS FOR A PARTICULAR PURPOSE.  See the
  14    GNU General Public License for more details.
  15
  16    You should have received a copy of the GNU General Public License
  17    along with this program; if not, see <http://www.gnu.org/licenses/>.
  18 */
  19
  20 #include "replace.h"
  21 #include "system/network.h"
  22
  23 #include <assert.h>
  24
  25 #include "protocol/protocol_basic.c"
  26 #include "protocol/protocol_types.c"
  27 #include "protocol/protocol_util.c"
  28
  29 /*
  30  * Test parsing of IPs, conversion to string
  31  */
  32
  33 static void test_sock_addr_to_string(const char *ip, bool with_port)
  34 {
  35         ctdb_sock_addr sa;
  36         const char *s;
  37         int ret;
  38
  39         ret = ctdb_sock_addr_from_string(ip, &sa, with_port);
  40         assert(ret == 0);
  41         s = ctdb_sock_addr_to_string(NULL, &sa, with_port);
  42         assert(strcmp(ip, s) == 0);
  43         talloc_free(discard_const(s));
  44 }
  45
  46 static void test_sock_addr_from_string_bad(const char *ip, bool with_port)
  47 {
  48         ctdb_sock_addr sa;
  49         int ret;
  50
  51         ret = ctdb_sock_addr_from_string(ip, &sa, with_port);
  52         assert(ret == EINVAL);
  53 }
  54
  55 static void test_sock_addr_from_string_memcmp(const char *ip1,
  56                                               const char* ip2)
  57 {
  58         ctdb_sock_addr sa1, sa2;
  59         int ret;
  60
  61         ret = ctdb_sock_addr_from_string(ip1, &sa1, false);
  62         assert(ret == 0);
  63         ret = ctdb_sock_addr_from_string(ip2, &sa2, false);
  64         assert(ret == 0);
  65         ret = memcmp(&sa1, &sa2, sizeof(ctdb_sock_addr));
  66         assert(ret == 0);
  67 }
  68
  69 static void test_sock_addr_cmp(const char *ip1, const char *ip2,
  70                                bool with_port, int res)
  71 {
  72         ctdb_sock_addr sa1, sa2;
  73         int ret;
  74
  75         ret = ctdb_sock_addr_from_string(ip1, &sa1, with_port);
  76         assert(ret == 0);
  77         ret = ctdb_sock_addr_from_string(ip2, &sa2, with_port);
  78         assert(ret == 0);
  79         ret = ctdb_sock_addr_cmp(&sa1, &sa2);
  80         if (ret < 0) {
  81                 ret = -1;
  82         } else if (ret > 0) {
  83                 ret = 1;
  84         }
  85
  86         assert(ret == res);
  87 }
  88
  89 /*
  90  * Test parsing of IP/mask, conversion to string
  91  */
  92
  93 static void test_sock_addr_mask_from_string(const char *ip_mask)
  94 {
  95         ctdb_sock_addr sa;
  96         unsigned mask;
  97         const char *s, *t;
  98         int ret;
  99
 100         ret = ctdb_sock_addr_mask_from_string(ip_mask, &sa, &mask);
 101         assert(ret == 0);
 102         s = ctdb_sock_addr_to_string(NULL, &sa, false);
 103         assert(s != NULL);
 104         t = talloc_asprintf(s, "%s/%u", s, mask);
 105         assert(strcmp(ip_mask, t) == 0);
 106         talloc_free(discard_const(s));
 107 }
 108
 109 static void test_sock_addr_mask_from_string_bad(const char *ip_mask)
 110 {
 111         ctdb_sock_addr sa;
 112         unsigned mask;
 113         int ret;
 114
 115         ret = ctdb_sock_addr_mask_from_string(ip_mask, &sa, &mask);
 116         assert(ret == EINVAL);
 117 }
 118
 119 /*
 120  * Test parsing of connection, conversion to string
 121  */
 122
 123 static void test_connection_to_string(const char *conn_str)
 124 {
 125         TALLOC_CTX *tmp_ctx;
 126         struct ctdb_connection conn;
 127         const char *s, *r;
 128         int ret;
 129
 130         tmp_ctx = talloc_new(NULL);
 131         assert(tmp_ctx != NULL);
 132
 133         /*
 134          * Test non-reversed parse and render
 135          */
 136
 137         ret = ctdb_connection_from_string(conn_str, false, &conn);
 138         assert(ret == 0);
 139
 140         s = ctdb_connection_to_string(tmp_ctx, &conn, false);
 141         assert(s != NULL);
 142         ret = strcmp(conn_str, s);
 143         assert(ret == 0);
 144
 145         talloc_free(discard_const(s));
 146
 147         /*
 148          * Reversed render
 149          */
 150         r = ctdb_connection_to_string(tmp_ctx, &conn, true);
 151         assert(r != NULL);
 152         ret = strcmp(conn_str, r);
 153         assert(ret != 0);
 154
 155         /*
 156          * Reversed parse with forward render
 157          */
 158         ret = ctdb_connection_from_string(conn_str, true, &conn);
 159         assert(ret == 0);
 160
 161         s = ctdb_connection_to_string(tmp_ctx, &conn, false);
 162         assert(s != NULL);
 163         ret = strcmp(r, s);
 164         assert(ret == 0);
 165
 166         talloc_free(discard_const(s));
 167
 168         /*
 169          * Reversed parse and render
 170          */
 171         ret = ctdb_connection_from_string(conn_str, true, &conn);
 172         assert(ret == 0);
 173
 174         s = ctdb_connection_to_string(tmp_ctx, &conn, true);
 175         assert(s != NULL);
 176         ret = strcmp(conn_str, s);
 177         assert(ret == 0);
 178
 179         talloc_free(tmp_ctx);
 180 }
 181
 182 static void test_connection_from_string_bad(const char *conn_str)
 183 {
 184         struct ctdb_connection conn;
 185         int ret;
 186
 187         ret = ctdb_connection_from_string(conn_str, false, &conn);
 188         assert(ret == EINVAL);
 189 }
 190
 191 /*
 192  * Test connection list utilities
 193  */
 194
 195 static void test_connection_list_read(const char *s1, const char *s2)
 196 {
 197         TALLOC_CTX *tmp_ctx;
 198         int pipefd[2];
 199         pid_t pid;
 200         struct ctdb_connection_list *conn_list = NULL;
 201         const char *t;
 202         int ret;
 203
 204         tmp_ctx = talloc_new(NULL);
 205         assert(tmp_ctx != NULL);
 206
 207         ret = pipe(pipefd);
 208         assert(ret == 0);
 209
 210         pid = fork();
 211         assert(pid != -1);
 212
 213         if (pid == 0) {
 214                 close(pipefd[0]);
 215
 216                 ret = dup2(pipefd[1], STDOUT_FILENO);
 217                 assert(ret != -1);
 218
 219                 close(pipefd[1]);
 220
 221                 printf("%s", s1);
 222                 fflush(stdout);
 223
 224                 exit(0);
 225         }
 226
 227         close(pipefd[1]);
 228
 229         ret = ctdb_connection_list_read(tmp_ctx, pipefd[0], false, &conn_list);
 230         assert(ret == 0);
 231
 232         close(pipefd[0]);
 233
 234         ret = ctdb_connection_list_sort(conn_list);
 235         assert(ret == 0);
 236
 237         t = ctdb_connection_list_to_string(tmp_ctx, conn_list, false);
 238         assert(t != NULL);
 239         ret = strcmp(t, s2);
 240         assert(ret == 0);
 241
 242         talloc_free(tmp_ctx);
 243 }
 244
 245 static void test_connection_list_read_bad(const char *s1)
 246 {
 247         TALLOC_CTX *tmp_ctx;
 248         int pipefd[2];
 249         pid_t pid;
 250         struct ctdb_connection_list *conn_list = NULL;
 251         int ret;
 252
 253         tmp_ctx = talloc_new(NULL);
 254         assert(tmp_ctx != NULL);
 255
 256         ret = pipe(pipefd);
 257         assert(ret == 0);
 258
 259         pid = fork();
 260         assert(pid != -1);
 261
 262         if (pid == 0) {
 263                 close(pipefd[0]);
 264
 265                 ret = dup2(pipefd[1], STDOUT_FILENO);
 266                 assert(ret != -1);
 267
 268                 close(pipefd[1]);
 269
 270                 printf("%s", s1);
 271                 fflush(stdout);
 272
 273                 exit(0);
 274         }
 275
 276         close(pipefd[1]);
 277
 278         ret = ctdb_connection_list_read(tmp_ctx, pipefd[0], false, &conn_list);
 279         assert(ret == EINVAL);
 280
 281         close(pipefd[0]);
 282
 283         talloc_free(tmp_ctx);
 284 }
 285
 286 /*
 287  * Use macros for these to make them easy to concatenate
 288  */
 289
 290 #define CONN4 \
 291 "\
 292 127.0.0.1:12345 127.0.0.2:54321\n\
 293 127.0.0.2:12345 127.0.0.1:54322\n\
 294 127.0.0.1:12346 127.0.0.2:54323\n\
 295 127.0.0.2:12345 127.0.0.1:54324\n\
 296 127.0.0.1:12345 127.0.0.2:54325\n\
 297 "
 298
 299 #define CONN4_SORT \
 300 "\
 301 127.0.0.1:12345 127.0.0.2:54321\n\
 302 127.0.0.1:12345 127.0.0.2:54325\n\
 303 127.0.0.1:12346 127.0.0.2:54323\n\
 304 127.0.0.2:12345 127.0.0.1:54322\n\
 305 127.0.0.2:12345 127.0.0.1:54324\n\
 306 "
 307
 308 #define CONN6 \
 309 "\
 310 [fe80::6af7:28ff:fefa:d136]:12345 [fe80::6af7:28ff:fefa:d137]:54321\n\
 311 [fe80::6af7:28ff:fefa:d138]:12345 [fe80::6af7:28ff:fefa:d137]:54322\n\
 312 [fe80::6af7:28ff:fefa:d136]:12346 [fe80::6af7:28ff:fefa:d137]:54323\n\
 313 [fe80::6af7:28ff:fefa:d132]:12345 [fe80::6af7:28ff:fefa:d137]:54324\n\
 314 [fe80::6af7:28ff:fefa:d136]:12345 [fe80::6af7:28ff:fefa:d137]:54325\n\
 315 "
 316
 317 #define CONN6_SORT \
 318 "\
 319 [fe80::6af7:28ff:fefa:d132]:12345 [fe80::6af7:28ff:fefa:d137]:54324\n\
 320 [fe80::6af7:28ff:fefa:d136]:12345 [fe80::6af7:28ff:fefa:d137]:54321\n\
 321 [fe80::6af7:28ff:fefa:d136]:12345 [fe80::6af7:28ff:fefa:d137]:54325\n\
 322 [fe80::6af7:28ff:fefa:d136]:12346 [fe80::6af7:28ff:fefa:d137]:54323\n\
 323 [fe80::6af7:28ff:fefa:d138]:12345 [fe80::6af7:28ff:fefa:d137]:54322\n\
 324 "
 325
 326 int main(int argc, char *argv[])
 327 {
 328         test_sock_addr_to_string("0.0.0.0", false);
 329         test_sock_addr_to_string("127.0.0.1", false);
 330         test_sock_addr_to_string("::1", false);
 331         test_sock_addr_to_string("192.168.2.1", false);
 332         test_sock_addr_to_string("fe80::6af7:28ff:fefa:d136", false);
 333
 334         test_sock_addr_to_string("0.0.0.0:0", true);
 335         test_sock_addr_to_string("127.0.0.1:123", true);
 336         test_sock_addr_to_string("[::1]:234", true);
 337         test_sock_addr_to_string("192.168.2.1:123", true);
 338         test_sock_addr_to_string("[fe80::6af7:28ff:fefa:d136]:234", true);
 339
 340         test_sock_addr_from_string_bad("0.0.0", false);
 341         test_sock_addr_from_string_bad("0.0.0:0", true);
 342         test_sock_addr_from_string_bad("fe80::6af7:28ff:fefa:d136", true);
 343         test_sock_addr_from_string_bad("junk", false);
 344         test_sock_addr_from_string_bad("0.0.0.0:0 trailing junk", true);
 345
 346         test_sock_addr_from_string_memcmp("127.0.0.1", "127.0.0.1");
 347         test_sock_addr_from_string_memcmp("fe80::6af7:28ff:fefa:d136",
 348                                           "fe80::6af7:28ff:fefa:d136");
 349         test_sock_addr_from_string_memcmp("::ffff:192.0.2.128", "192.0.2.128");
 350
 351         test_sock_addr_cmp("127.0.0.1", "127.0.0.1" , false, 0);
 352         test_sock_addr_cmp("127.0.0.1", "127.0.0.2" , false, -1);
 353         test_sock_addr_cmp("127.0.0.2", "127.0.0.1" , false, 1);
 354         test_sock_addr_cmp("127.0.1.2", "127.0.2.1" , false, -1);
 355         test_sock_addr_cmp("127.0.2.1", "127.0.1.2" , false, 1);
 356         test_sock_addr_cmp("fe80::6af7:28ff:fefa:d136", "127.0.1.2" , false, 1);
 357         test_sock_addr_cmp("fe80::6af7:28ff:fefa:d136",
 358                            "fe80::6af7:28ff:fefa:d136" , false, 0);
 359         test_sock_addr_cmp("fe80::6af7:28ff:fefa:d136",
 360                            "fe80::6af7:28ff:fefa:d137" , false, -1);
 361         test_sock_addr_cmp("fe80::6af7:28ff:fefa:d136",
 362                            "fe80:0000:0000:0000:6af7:28ff:fefa:d136" ,
 363                            false, 0);
 364         test_sock_addr_cmp("::ffff:192.0.2.128", "192.0.2.128", false, 0);
 365
 366         test_sock_addr_cmp("127.0.0.1:123", "127.0.0.1:124" , true, -1);
 367         test_sock_addr_cmp("fe80::6af7:28ff:fefa:d136:123",
 368                            "fe80::6af7:28ff:fefa:d136:122" , true, 1);
 369
 370         /*
 371          * Confirm equivalence of IPv6 sockets with and without
 372          * square-brackets
 373          */
 374         test_sock_addr_cmp("[::1]:234", "::1:234", true, 0);
 375         test_sock_addr_cmp("[fe80::6af7:28ff:fefa:d136]:234",
 376                            "fe80::6af7:28ff:fefa:d136:234",
 377                            true,
 378                            0);
 379         /* Check IPv4-mapped IPv6 addresses */
 380         test_sock_addr_cmp("::ffff:172.16.0.27:977",
 381                            "172.16.0.27:977",
 382                            true,
 383                            0);
 384         test_sock_addr_cmp("[::ffff:172.16.0.27]:977",
 385                            "172.16.0.27:977",
 386                            true,
 387                            0);
 388
 389         test_sock_addr_mask_from_string("127.0.0.1/8");
 390         test_sock_addr_mask_from_string("::1/128");
 391         test_sock_addr_mask_from_string("fe80::6af7:28ff:fefa:d136/64");
 392         test_sock_addr_mask_from_string_bad("127.0.0.1");
 393
 394         test_connection_to_string("127.0.0.1:12345 127.0.0.2:54321");
 395         test_connection_to_string("[fe80::6af7:28ff:fefa:d137]:12345 "
 396                                   "[fe80::6af7:28ff:fefa:d138]:54321");
 397
 398         test_connection_from_string_bad("127.0.0.1:12345 127.0.0.2:");
 399         test_connection_from_string_bad("127.0.0.1:12345");
 400         test_connection_from_string_bad("127.0.0.1:12345 "
 401                                         "[fe80::6af7:28ff:fefa:d136]:122");
 402         test_connection_from_string_bad("Junk!");
 403         test_connection_from_string_bad("More junk");
 404
 405         test_connection_list_read(CONN4, CONN4_SORT);
 406         test_connection_list_read(CONN6, CONN6_SORT);
 407         test_connection_list_read(CONN4 CONN6, CONN4_SORT CONN6_SORT);
 408         test_connection_list_read(CONN4 "# Comment\n\n# Comment\n" CONN6,
 409                                   CONN4_SORT CONN6_SORT);
 410
 411         test_connection_list_read_bad(CONN4 "# Comment\n\nJunk!!!\n" CONN6);
 412         test_connection_list_read_bad(CONN4
 413                                       "# Comment\n\n127.0.0.1: 127.0.0.1:124\n"
 414                                       CONN6);
 415
 416         return 0;
 417 }