1: /* $QuaggaId: Format:%an, %ai, %h$ $
2: *
3: * BGP Multipath Unit Test
4: * Copyright (C) 2010 Google Inc.
5: *
6: * This file is part of Quagga
7: *
8: * Quagga is free software; you can redistribute it and/or modify it
9: * under the terms of the GNU General Public License as published by the
10: * Free Software Foundation; either version 2, or (at your option) any
11: * later version.
12: *
13: * Quagga is distributed in the hope that it will be useful, but
14: * WITHOUT ANY WARRANTY; without even the implied warranty of
15: * MERCHANTABILITY or FITNESS FOR A PARTICULAR PURPOSE. See the GNU
16: * General Public License for more details.
17: *
18: * You should have received a copy of the GNU General Public License
19: * along with Quagga; see the file COPYING. If not, write to the Free
20: * Software Foundation, Inc., 59 Temple Place - Suite 330, Boston, MA
21: * 02111-1307, USA.
22: */
23:
24: #include <zebra.h>
25:
26: #include "vty.h"
27: #include "stream.h"
28: #include "privs.h"
29: #include "linklist.h"
30: #include "memory.h"
31: #include "zclient.h"
32:
33: #include "bgpd/bgpd.h"
34: #include "bgpd/bgp_table.h"
35: #include "bgpd/bgp_route.h"
36: #include "bgpd/bgp_attr.h"
37: #include "bgpd/bgp_mpath.h"
38:
39: #define VT100_RESET "\x1b[0m"
40: #define VT100_RED "\x1b[31m"
41: #define VT100_GREEN "\x1b[32m"
42: #define VT100_YELLOW "\x1b[33m"
43: #define OK VT100_GREEN "OK" VT100_RESET
44: #define FAILED VT100_RED "failed" VT100_RESET
45:
46: #define TEST_PASSED 0
47: #define TEST_FAILED -1
48:
49: #define EXPECT_TRUE(expr, res) \
50: if (!(expr)) \
51: { \
52: printf ("Test failure in %s line %u: %s\n", \
53: __FUNCTION__, __LINE__, #expr); \
54: (res) = TEST_FAILED; \
55: }
56:
57: typedef struct testcase_t__ testcase_t;
58:
59: typedef int (*test_setup_func)(testcase_t *);
60: typedef int (*test_run_func)(testcase_t *);
61: typedef int (*test_cleanup_func)(testcase_t *);
62:
63: struct testcase_t__ {
64: const char *desc;
65: void *test_data;
66: void *verify_data;
67: void *tmp_data;
68: test_setup_func setup;
69: test_run_func run;
70: test_cleanup_func cleanup;
71: };
72:
73: /* need these to link in libbgp */
74: struct thread_master *master = NULL;
75: struct zclient *zclient;
76: struct zebra_privs_t bgpd_privs =
77: {
78: .user = NULL,
79: .group = NULL,
80: .vty_group = NULL,
81: };
82:
83: static int tty = 0;
84:
85: /* Create fake bgp instance */
86: static struct bgp *
87: bgp_create_fake (as_t *as, const char *name)
88: {
89: struct bgp *bgp;
90: afi_t afi;
91: safi_t safi;
92:
93: if ( (bgp = XCALLOC (MTYPE_BGP, sizeof (struct bgp))) == NULL)
94: return NULL;
95:
96: bgp_lock (bgp);
97: //bgp->peer_self = peer_new (bgp);
98: //bgp->peer_self->host = XSTRDUP (MTYPE_BGP_PEER_HOST, "Static announcement");
99:
100: bgp->peer = list_new ();
101: //bgp->peer->cmp = (int (*)(void *, void *)) peer_cmp;
102:
103: bgp->group = list_new ();
104: //bgp->group->cmp = (int (*)(void *, void *)) peer_group_cmp;
105:
106: bgp->rsclient = list_new ();
107: //bgp->rsclient->cmp = (int (*)(void*, void*)) peer_cmp;
108:
109: for (afi = AFI_IP; afi < AFI_MAX; afi++)
110: for (safi = SAFI_UNICAST; safi < SAFI_MAX; safi++)
111: {
112: bgp->route[afi][safi] = bgp_table_init (afi, safi);
113: bgp->aggregate[afi][safi] = bgp_table_init (afi, safi);
114: bgp->rib[afi][safi] = bgp_table_init (afi, safi);
115: bgp->maxpaths[afi][safi].maxpaths_ebgp = BGP_DEFAULT_MAXPATHS;
116: bgp->maxpaths[afi][safi].maxpaths_ibgp = BGP_DEFAULT_MAXPATHS;
117: }
118:
119: bgp->default_local_pref = BGP_DEFAULT_LOCAL_PREF;
120: bgp->default_holdtime = BGP_DEFAULT_HOLDTIME;
121: bgp->default_keepalive = BGP_DEFAULT_KEEPALIVE;
122: bgp->restart_time = BGP_DEFAULT_RESTART_TIME;
123: bgp->stalepath_time = BGP_DEFAULT_STALEPATH_TIME;
124:
125: bgp->as = *as;
126:
127: if (name)
128: bgp->name = strdup (name);
129:
130: return bgp;
131: }
132:
133: /*=========================================================
134: * Testcase for maximum-paths configuration
135: */
136: static int
137: setup_bgp_cfg_maximum_paths (testcase_t *t)
138: {
139: as_t asn = 1;
140: t->tmp_data = bgp_create_fake (&asn, NULL);
141: if (!t->tmp_data)
142: return -1;
143: return 0;
144: }
145:
146: static int
147: run_bgp_cfg_maximum_paths (testcase_t *t)
148: {
149: afi_t afi;
150: safi_t safi;
151: struct bgp *bgp;
152: int api_result;
153: int test_result = TEST_PASSED;
154:
155: bgp = t->tmp_data;
156: for (afi = AFI_IP; afi < AFI_MAX; afi++)
157: for (safi = SAFI_UNICAST; safi < SAFI_MAX; safi++)
158: {
159: /* test bgp_maximum_paths_set */
160: api_result = bgp_maximum_paths_set (bgp, afi, safi, BGP_PEER_EBGP, 10);
161: EXPECT_TRUE (api_result == 0, test_result);
162: api_result = bgp_maximum_paths_set (bgp, afi, safi, BGP_PEER_IBGP, 10);
163: EXPECT_TRUE (api_result == 0, test_result);
164: EXPECT_TRUE (bgp->maxpaths[afi][safi].maxpaths_ebgp == 10, test_result);
165: EXPECT_TRUE (bgp->maxpaths[afi][safi].maxpaths_ibgp == 10, test_result);
166:
167: /* test bgp_maximum_paths_unset */
168: api_result = bgp_maximum_paths_unset (bgp, afi, safi, BGP_PEER_EBGP);
169: EXPECT_TRUE (api_result == 0, test_result);
170: api_result = bgp_maximum_paths_unset (bgp, afi, safi, BGP_PEER_IBGP);
171: EXPECT_TRUE (api_result == 0, test_result);
172: EXPECT_TRUE ((bgp->maxpaths[afi][safi].maxpaths_ebgp ==
173: BGP_DEFAULT_MAXPATHS), test_result);
174: EXPECT_TRUE ((bgp->maxpaths[afi][safi].maxpaths_ibgp ==
175: BGP_DEFAULT_MAXPATHS), test_result);
176: }
177:
178: return test_result;
179: }
180:
181: static int
182: cleanup_bgp_cfg_maximum_paths (testcase_t *t)
183: {
184: return bgp_delete ((struct bgp *)t->tmp_data);
185: }
186:
187: testcase_t test_bgp_cfg_maximum_paths = {
188: .desc = "Test bgp maximum-paths config",
189: .setup = setup_bgp_cfg_maximum_paths,
190: .run = run_bgp_cfg_maximum_paths,
191: .cleanup = cleanup_bgp_cfg_maximum_paths,
192: };
193:
194: /*=========================================================
195: * Testcase for bgp_mp_list
196: */
197: struct peer test_mp_list_peer[] = {
198: { .local_as = 1, .as = 2 },
199: { .local_as = 1, .as = 2 },
200: { .local_as = 1, .as = 2 },
201: { .local_as = 1, .as = 2 },
202: { .local_as = 1, .as = 2 },
203: };
204: int test_mp_list_peer_count = sizeof (test_mp_list_peer)/ sizeof (struct peer);
205: struct attr test_mp_list_attr[4];
206: struct bgp_info test_mp_list_info[] = {
207: { .peer = &test_mp_list_peer[0], .attr = &test_mp_list_attr[0] },
208: { .peer = &test_mp_list_peer[1], .attr = &test_mp_list_attr[1] },
209: { .peer = &test_mp_list_peer[2], .attr = &test_mp_list_attr[1] },
210: { .peer = &test_mp_list_peer[3], .attr = &test_mp_list_attr[2] },
211: { .peer = &test_mp_list_peer[4], .attr = &test_mp_list_attr[3] },
212: };
213: int test_mp_list_info_count =
214: sizeof (test_mp_list_info)/sizeof (struct bgp_info);
215:
216: static int
217: setup_bgp_mp_list (testcase_t *t)
218: {
219: test_mp_list_attr[0].nexthop.s_addr = 0x01010101;
220: test_mp_list_attr[1].nexthop.s_addr = 0x02020202;
221: test_mp_list_attr[2].nexthop.s_addr = 0x03030303;
222: test_mp_list_attr[3].nexthop.s_addr = 0x04040404;
223:
224: if ((test_mp_list_peer[0].su_remote = sockunion_str2su ("1.1.1.1")) == NULL)
225: return -1;
226: if ((test_mp_list_peer[1].su_remote = sockunion_str2su ("2.2.2.2")) == NULL)
227: return -1;
228: if ((test_mp_list_peer[2].su_remote = sockunion_str2su ("3.3.3.3")) == NULL)
229: return -1;
230: if ((test_mp_list_peer[3].su_remote = sockunion_str2su ("4.4.4.4")) == NULL)
231: return -1;
232: if ((test_mp_list_peer[4].su_remote = sockunion_str2su ("5.5.5.5")) == NULL)
233: return -1;
234:
235: return 0;
236: }
237:
238: static int
239: run_bgp_mp_list (testcase_t *t)
240: {
241: struct list mp_list;
242: struct listnode *mp_node;
243: struct bgp_info *info;
244: int i;
245: int test_result = TEST_PASSED;
246: bgp_mp_list_init (&mp_list);
247: EXPECT_TRUE (listcount(&mp_list) == 0, test_result);
248:
249: bgp_mp_list_add (&mp_list, &test_mp_list_info[1]);
250: bgp_mp_list_add (&mp_list, &test_mp_list_info[4]);
251: bgp_mp_list_add (&mp_list, &test_mp_list_info[2]);
252: bgp_mp_list_add (&mp_list, &test_mp_list_info[3]);
253: bgp_mp_list_add (&mp_list, &test_mp_list_info[0]);
254:
255: for (i = 0, mp_node = listhead(&mp_list); i < test_mp_list_info_count;
256: i++, mp_node = listnextnode(mp_node))
257: {
258: info = listgetdata(mp_node);
259: EXPECT_TRUE (info == &test_mp_list_info[i], test_result);
260: }
261:
262: bgp_mp_list_clear (&mp_list);
263: EXPECT_TRUE (listcount(&mp_list) == 0, test_result);
264:
265: return test_result;
266: }
267:
268: static int
269: cleanup_bgp_mp_list (testcase_t *t)
270: {
271: int i;
272:
273: for (i = 0; i < test_mp_list_peer_count; i++)
274: sockunion_free (test_mp_list_peer[i].su_remote);
275:
276: return 0;
277: }
278:
279: testcase_t test_bgp_mp_list = {
280: .desc = "Test bgp_mp_list",
281: .setup = setup_bgp_mp_list,
282: .run = run_bgp_mp_list,
283: .cleanup = cleanup_bgp_mp_list,
284: };
285:
286: /*=========================================================
287: * Testcase for bgp_info_mpath_update
288: */
289:
290: struct bgp_node test_rn;
291:
292: static int
293: setup_bgp_info_mpath_update (testcase_t *t)
294: {
295: int i;
296: str2prefix ("42.1.1.0/24", &test_rn.p);
297: setup_bgp_mp_list (t);
298: for (i = 0; i < test_mp_list_info_count; i++)
299: bgp_info_add (&test_rn, &test_mp_list_info[i]);
300: return 0;
301: }
302:
303: static int
304: run_bgp_info_mpath_update (testcase_t *t)
305: {
306: struct bgp_info *new_best, *old_best, *mpath;
307: struct list mp_list;
308: struct bgp_maxpaths_cfg mp_cfg = { 3, 3 };
309: int test_result = TEST_PASSED;
310: bgp_mp_list_init (&mp_list);
311: bgp_mp_list_add (&mp_list, &test_mp_list_info[4]);
312: bgp_mp_list_add (&mp_list, &test_mp_list_info[3]);
313: bgp_mp_list_add (&mp_list, &test_mp_list_info[0]);
314: bgp_mp_list_add (&mp_list, &test_mp_list_info[1]);
315: new_best = &test_mp_list_info[3];
316: old_best = NULL;
317: bgp_info_mpath_update (&test_rn, new_best, old_best, &mp_list, &mp_cfg);
318: bgp_mp_list_clear (&mp_list);
319: EXPECT_TRUE (bgp_info_mpath_count (new_best) == 2, test_result);
320: mpath = bgp_info_mpath_first (new_best);
321: EXPECT_TRUE (mpath == &test_mp_list_info[0], test_result);
322: EXPECT_TRUE (CHECK_FLAG (mpath->flags, BGP_INFO_MULTIPATH), test_result);
323: mpath = bgp_info_mpath_next (mpath);
324: EXPECT_TRUE (mpath == &test_mp_list_info[1], test_result);
325: EXPECT_TRUE (CHECK_FLAG (mpath->flags, BGP_INFO_MULTIPATH), test_result);
326:
327: bgp_mp_list_add (&mp_list, &test_mp_list_info[0]);
328: bgp_mp_list_add (&mp_list, &test_mp_list_info[1]);
329: new_best = &test_mp_list_info[0];
330: old_best = &test_mp_list_info[3];
331: bgp_info_mpath_update (&test_rn, new_best, old_best, &mp_list, &mp_cfg);
332: bgp_mp_list_clear (&mp_list);
333: EXPECT_TRUE (bgp_info_mpath_count (new_best) == 1, test_result);
334: mpath = bgp_info_mpath_first (new_best);
335: EXPECT_TRUE (mpath == &test_mp_list_info[1], test_result);
336: EXPECT_TRUE (CHECK_FLAG (mpath->flags, BGP_INFO_MULTIPATH), test_result);
337: EXPECT_TRUE (!CHECK_FLAG (test_mp_list_info[0].flags, BGP_INFO_MULTIPATH),
338: test_result);
339:
340: return test_result;
341: }
342:
343: static int
344: cleanup_bgp_info_mpath_update (testcase_t *t)
345: {
346: int i;
347:
348: for (i = 0; i < test_mp_list_peer_count; i++)
349: sockunion_free (test_mp_list_peer[i].su_remote);
350:
351: return 0;
352: }
353:
354: testcase_t test_bgp_info_mpath_update = {
355: .desc = "Test bgp_info_mpath_update",
356: .setup = setup_bgp_info_mpath_update,
357: .run = run_bgp_info_mpath_update,
358: .cleanup = cleanup_bgp_info_mpath_update,
359: };
360:
361: /*=========================================================
362: * Set up testcase vector
363: */
364: testcase_t *all_tests[] = {
365: &test_bgp_cfg_maximum_paths,
366: &test_bgp_mp_list,
367: &test_bgp_info_mpath_update,
368: };
369:
370: int all_tests_count = (sizeof(all_tests)/sizeof(testcase_t *));
371:
372: /*=========================================================
373: * Test Driver Functions
374: */
375: static int
376: global_test_init (void)
377: {
378: master = thread_master_create ();
379: zclient = zclient_new ();
380: bgp_master_init ();
381: bgp_option_set (BGP_OPT_NO_LISTEN);
382:
383: if (fileno (stdout) >= 0)
384: tty = isatty (fileno (stdout));
385: return 0;
386: }
387:
388: static int
389: global_test_cleanup (void)
390: {
391: zclient_free (zclient);
392: thread_master_free (master);
393: return 0;
394: }
395:
396: static void
397: display_result (testcase_t *test, int result)
398: {
399: if (tty)
400: printf ("%s: %s\n", test->desc, result == TEST_PASSED ? OK : FAILED);
401: else
402: printf ("%s: %s\n", test->desc, result == TEST_PASSED ? "OK" : "FAILED");
403: }
404:
405: static int
406: setup_test (testcase_t *t)
407: {
408: int res = 0;
409: if (t->setup)
410: res = t->setup (t);
411: return res;
412: }
413:
414: static int
415: cleanup_test (testcase_t *t)
416: {
417: int res = 0;
418: if (t->cleanup)
419: res = t->cleanup (t);
420: return res;
421: }
422:
423: static void
424: run_tests (testcase_t *tests[], int num_tests, int *pass_count, int *fail_count)
425: {
426: int test_index, result;
427: testcase_t *cur_test;
428:
429: *pass_count = *fail_count = 0;
430:
431: for (test_index = 0; test_index < num_tests; test_index++)
432: {
433: cur_test = tests[test_index];
434: if (!cur_test->desc)
435: {
436: printf ("error: test %d has no description!\n", test_index);
437: continue;
438: }
439: if (!cur_test->run)
440: {
441: printf ("error: test %s has no run function!\n", cur_test->desc);
442: continue;
443: }
444: if (setup_test (cur_test) != 0)
445: {
446: printf ("error: setup failed for test %s\n", cur_test->desc);
447: continue;
448: }
449: result = cur_test->run (cur_test);
450: if (result == TEST_PASSED)
451: *pass_count += 1;
452: else
453: *fail_count += 1;
454: display_result (cur_test, result);
455: if (cleanup_test (cur_test) != 0)
456: {
457: printf ("error: cleanup failed for test %s\n", cur_test->desc);
458: continue;
459: }
460: }
461: }
462:
463: int
464: main (void)
465: {
466: int pass_count, fail_count;
467: time_t cur_time;
468:
469: time (&cur_time);
470: printf("BGP Multipath Tests Run at %s", ctime(&cur_time));
471: if (global_test_init () != 0)
472: {
473: printf("Global init failed. Terminating.\n");
474: exit(1);
475: }
476: run_tests (all_tests, all_tests_count, &pass_count, &fail_count);
477: global_test_cleanup ();
478: printf("Total pass/fail: %d/%d\n", pass_count, fail_count);
479: return fail_count;
480: }
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