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1 | /*-*- Mode: C; c-basic-offset: 8; indent-tabs-mode: nil -*-*/ |
2 | ||
3 | /*** | |
4 | This file is part of systemd. | |
5 | ||
6 | Copyright 2013 Marius Vollmer | |
5cb24cd3 | 7 | Copyright 2013 Zbigniew Jędrzejewski-Szmek |
7a050b54 MV |
8 | |
9 | systemd is free software; you can redistribute it and/or modify it | |
10 | under the terms of the GNU Lesser General Public License as published by | |
11 | the Free Software Foundation; either version 2.1 of the License, or | |
12 | (at your option) any later version. | |
13 | ||
14 | systemd is distributed in the hope that it will be useful, but | |
15 | WITHOUT ANY WARRANTY; without even the implied warranty of | |
16 | MERCHANTABILITY or FITNESS FOR A PARTICULAR PURPOSE. See the GNU | |
17 | Lesser General Public License for more details. | |
18 | ||
19 | You should have received a copy of the GNU Lesser General Public License | |
20 | along with systemd; If not, see <http://www.gnu.org/licenses/>. | |
21 | ***/ | |
22 | ||
23 | #include <unistd.h> | |
24 | #include <fcntl.h> | |
25 | ||
26 | #include <systemd/sd-journal.h> | |
27 | ||
28 | #include "journal-file.h" | |
29 | #include "journal-internal.h" | |
5cb24cd3 | 30 | #include "journal-vacuum.h" |
7a050b54 MV |
31 | #include "util.h" |
32 | #include "log.h" | |
33 | ||
34 | /* This program tests skipping around in a multi-file journal. | |
35 | */ | |
36 | ||
5cb24cd3 ZJS |
37 | static bool arg_keep = false; |
38 | ||
7a050b54 MV |
39 | static void log_assert_errno(const char *text, int eno, const char *file, int line, const char *func) { |
40 | log_meta(LOG_CRIT, file, line, func, | |
41 | "'%s' failed at %s:%u (%s): %s.", | |
42 | text, file, line, func, strerror(eno)); | |
43 | abort(); | |
44 | } | |
45 | ||
46 | #define assert_ret(expr) \ | |
47 | do { \ | |
48 | int _r_ = (expr); \ | |
49 | if (_unlikely_(_r_ < 0)) \ | |
50 | log_assert_errno(#expr, -_r_, __FILE__, __LINE__, __PRETTY_FUNCTION__); \ | |
51 | } while (false) | |
52 | ||
53 | static JournalFile *test_open (const char *name) | |
54 | { | |
55 | JournalFile *f; | |
5cb24cd3 | 56 | assert_ret(journal_file_open(name, O_RDWR|O_CREAT, 0644, true, false, NULL, NULL, NULL, &f)); |
7a050b54 MV |
57 | return f; |
58 | } | |
59 | ||
60 | static void test_close (JournalFile *f) | |
61 | { | |
62 | journal_file_close (f); | |
63 | } | |
64 | ||
5cb24cd3 | 65 | static void append_number(JournalFile *f, int n, uint64_t *seqnum) |
7a050b54 MV |
66 | { |
67 | char *p; | |
68 | dual_timestamp ts; | |
69 | struct iovec iovec[1]; | |
70 | ||
71 | dual_timestamp_get(&ts); | |
72 | ||
73 | assert_se(asprintf(&p, "NUMBER=%d", n) >= 0); | |
74 | iovec[0].iov_base = p; | |
75 | iovec[0].iov_len = strlen(p); | |
5cb24cd3 | 76 | assert_ret(journal_file_append_entry(f, &ts, iovec, 1, seqnum, NULL, NULL)); |
7a050b54 MV |
77 | free (p); |
78 | } | |
79 | ||
80 | static void test_check_number (sd_journal *j, int n) | |
81 | { | |
82 | const void *d; | |
83 | char *k; | |
84 | size_t l; | |
85 | int x; | |
86 | ||
87 | assert_ret(sd_journal_get_data(j, "NUMBER", &d, &l)); | |
88 | assert_se(k = strndup(d, l)); | |
89 | printf("%s\n", k); | |
90 | ||
91 | assert_se(safe_atoi(k + 7, &x) >= 0); | |
92 | assert_se(n == x); | |
93 | } | |
94 | ||
95 | static void test_check_numbers_down (sd_journal *j, int count) | |
96 | { | |
97 | for (int i = 1; i <= count; i++) { | |
98 | int r; | |
99 | test_check_number(j, i); | |
100 | assert_ret(r = sd_journal_next(j)); | |
101 | if (i == count) | |
102 | assert_se(r == 0); | |
103 | else | |
104 | assert_se(r == 1); | |
105 | } | |
106 | ||
107 | } | |
108 | ||
109 | static void test_check_numbers_up (sd_journal *j, int count) | |
110 | { | |
111 | for (int i = count; i >= 1; i--) { | |
112 | int r; | |
113 | test_check_number(j, i); | |
114 | assert_ret(r = sd_journal_previous(j)); | |
115 | if (i == 1) | |
116 | assert_se(r == 0); | |
117 | else | |
118 | assert_se(r == 1); | |
119 | } | |
120 | ||
121 | } | |
122 | ||
123 | static void setup_sequential(void) { | |
124 | JournalFile *one, *two; | |
125 | one = test_open("one.journal"); | |
126 | two = test_open("two.journal"); | |
5cb24cd3 ZJS |
127 | append_number(one, 1, NULL); |
128 | append_number(one, 2, NULL); | |
129 | append_number(two, 3, NULL); | |
130 | append_number(two, 4, NULL); | |
7a050b54 MV |
131 | test_close(one); |
132 | test_close(two); | |
133 | } | |
134 | ||
135 | static void setup_interleaved(void) { | |
136 | JournalFile *one, *two; | |
137 | one = test_open("one.journal"); | |
138 | two = test_open("two.journal"); | |
5cb24cd3 ZJS |
139 | append_number(one, 1, NULL); |
140 | append_number(two, 2, NULL); | |
141 | append_number(one, 3, NULL); | |
142 | append_number(two, 4, NULL); | |
7a050b54 MV |
143 | test_close(one); |
144 | test_close(two); | |
145 | } | |
146 | ||
147 | static void test_skip(void (*setup)(void)) | |
148 | { | |
149 | char t[] = "/tmp/journal-skip-XXXXXX"; | |
150 | sd_journal *j; | |
151 | int r; | |
152 | ||
7a050b54 MV |
153 | assert_se(mkdtemp(t)); |
154 | assert_se(chdir(t) >= 0); | |
155 | ||
156 | setup(); | |
157 | ||
158 | /* Seek to head, iterate down. | |
159 | */ | |
160 | assert_ret(sd_journal_open_directory(&j, t, 0)); | |
161 | assert_ret(sd_journal_seek_head(j)); | |
162 | assert_ret(sd_journal_next(j)); | |
163 | test_check_numbers_down(j, 4); | |
164 | sd_journal_close(j); | |
165 | ||
166 | /* Seek to tail, iterate up. | |
167 | */ | |
168 | assert_ret(sd_journal_open_directory(&j, t, 0)); | |
169 | assert_ret(sd_journal_seek_tail(j)); | |
170 | assert_ret(sd_journal_previous(j)); | |
171 | test_check_numbers_up(j, 4); | |
172 | sd_journal_close(j); | |
173 | ||
174 | /* Seek to tail, skip to head, iterate down. | |
175 | */ | |
176 | assert_ret(sd_journal_open_directory(&j, t, 0)); | |
177 | assert_ret(sd_journal_seek_tail(j)); | |
178 | assert_ret(r = sd_journal_previous_skip(j, 4)); | |
179 | assert_se(r == 4); | |
180 | test_check_numbers_down(j, 4); | |
181 | sd_journal_close(j); | |
182 | ||
183 | /* Seek to head, skip to tail, iterate up. | |
184 | */ | |
185 | assert_ret(sd_journal_open_directory(&j, t, 0)); | |
186 | assert_ret(sd_journal_seek_head(j)); | |
187 | assert_ret(r = sd_journal_next_skip(j, 4)); | |
188 | assert_se(r == 4); | |
189 | test_check_numbers_up(j, 4); | |
190 | sd_journal_close(j); | |
191 | ||
5cb24cd3 ZJS |
192 | log_info("Done..."); |
193 | ||
194 | if (arg_keep) | |
195 | log_info("Not removing %s", t); | |
196 | else { | |
197 | journal_directory_vacuum(".", 3000000, 0, 0, NULL); | |
198 | ||
199 | assert_se(rm_rf_dangerous(t, false, true, false) >= 0); | |
200 | } | |
201 | ||
202 | puts("------------------------------------------------------------"); | |
203 | } | |
204 | ||
205 | static void test_sequence_numbers(void) { | |
206 | ||
207 | char t[] = "/tmp/journal-seq-XXXXXX"; | |
208 | JournalFile *one, *two; | |
209 | uint64_t seqnum = 0; | |
210 | sd_id128_t seqnum_id; | |
211 | ||
212 | assert_se(mkdtemp(t)); | |
213 | assert_se(chdir(t) >= 0); | |
214 | ||
215 | assert_se(journal_file_open("one.journal", O_RDWR|O_CREAT, 0644, | |
216 | true, false, NULL, NULL, NULL, &one) == 0); | |
217 | ||
218 | append_number(one, 1, &seqnum); | |
219 | printf("seqnum=%"PRIu64"\n", seqnum); | |
220 | assert(seqnum == 1); | |
221 | append_number(one, 2, &seqnum); | |
222 | printf("seqnum=%"PRIu64"\n", seqnum); | |
223 | assert(seqnum == 2); | |
224 | ||
225 | assert(one->header->state == STATE_ONLINE); | |
226 | assert(!sd_id128_equal(one->header->file_id, one->header->machine_id)); | |
227 | assert(!sd_id128_equal(one->header->file_id, one->header->boot_id)); | |
228 | assert(sd_id128_equal(one->header->file_id, one->header->seqnum_id)); | |
229 | ||
230 | memcpy(&seqnum_id, &one->header->seqnum_id, sizeof(sd_id128_t)); | |
231 | ||
232 | assert_se(journal_file_open("two.journal", O_RDWR|O_CREAT, 0644, | |
233 | true, false, NULL, NULL, one, &two) == 0); | |
234 | ||
235 | assert(two->header->state == STATE_ONLINE); | |
236 | assert(!sd_id128_equal(two->header->file_id, one->header->file_id)); | |
237 | assert(sd_id128_equal(one->header->machine_id, one->header->machine_id)); | |
238 | assert(sd_id128_equal(one->header->boot_id, one->header->boot_id)); | |
239 | assert(sd_id128_equal(one->header->seqnum_id, one->header->seqnum_id)); | |
240 | ||
241 | append_number(two, 3, &seqnum); | |
242 | printf("seqnum=%"PRIu64"\n", seqnum); | |
243 | assert(seqnum == 3); | |
244 | append_number(two, 4, &seqnum); | |
245 | printf("seqnum=%"PRIu64"\n", seqnum); | |
246 | assert(seqnum == 4); | |
247 | ||
248 | test_close(two); | |
249 | ||
250 | append_number(one, 5, &seqnum); | |
251 | printf("seqnum=%"PRIu64"\n", seqnum); | |
252 | assert(seqnum == 5); | |
253 | ||
254 | append_number(one, 6, &seqnum); | |
255 | printf("seqnum=%"PRIu64"\n", seqnum); | |
256 | assert(seqnum == 6); | |
257 | ||
258 | test_close(one); | |
259 | ||
260 | /* restart server */ | |
261 | seqnum = 0; | |
262 | ||
263 | assert_se(journal_file_open("two.journal", O_RDWR, 0, | |
264 | true, false, NULL, NULL, NULL, &two) == 0); | |
265 | ||
266 | assert(sd_id128_equal(two->header->seqnum_id, seqnum_id)); | |
267 | ||
268 | append_number(two, 7, &seqnum); | |
269 | printf("seqnum=%"PRIu64"\n", seqnum); | |
270 | assert(seqnum == 5); | |
271 | ||
272 | /* So..., here we have the same seqnum in two files with the | |
273 | * same seqnum_id. */ | |
274 | ||
275 | test_close(two); | |
276 | ||
277 | log_info("Done..."); | |
278 | ||
279 | if (arg_keep) | |
280 | log_info("Not removing %s", t); | |
281 | else { | |
282 | journal_directory_vacuum(".", 3000000, 0, 0, NULL); | |
283 | ||
284 | assert_se(rm_rf_dangerous(t, false, true, false) >= 0); | |
285 | } | |
7a050b54 MV |
286 | } |
287 | ||
288 | int main(int argc, char *argv[]) { | |
5cb24cd3 ZJS |
289 | log_set_max_level(LOG_DEBUG); |
290 | ||
291 | arg_keep = argc > 1; | |
292 | ||
7a050b54 MV |
293 | test_skip(setup_sequential); |
294 | test_skip(setup_interleaved); | |
295 | ||
5cb24cd3 ZJS |
296 | test_sequence_numbers(); |
297 | ||
7a050b54 MV |
298 | return 0; |
299 | } |