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Commit | Line | Data |
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86aa7ba4 LP |
1 | /*-*- Mode: C; c-basic-offset: 8; indent-tabs-mode: nil -*-*/ |
2 | ||
3 | /*** | |
4 | This file is part of systemd. | |
5 | ||
6 | Copyright 2012 Lennart Poettering | |
7 | ||
8 | systemd is free software; you can redistribute it and/or modify it | |
5430f7f2 LP |
9 | under the terms of the GNU Lesser General Public License as published by |
10 | the Free Software Foundation; either version 2.1 of the License, or | |
86aa7ba4 LP |
11 | (at your option) any later version. |
12 | ||
13 | systemd 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 | |
5430f7f2 | 16 | Lesser General Public License for more details. |
86aa7ba4 | 17 | |
5430f7f2 | 18 | You should have received a copy of the GNU Lesser General Public License |
86aa7ba4 LP |
19 | along with systemd; If not, see <http://www.gnu.org/licenses/>. |
20 | ***/ | |
21 | ||
22 | #include <time.h> | |
23 | #include <assert.h> | |
24 | #include <errno.h> | |
df50185b | 25 | #include <sys/poll.h> |
2a410422 | 26 | #include <sys/socket.h> |
55d7bfc1 | 27 | #include <string.h> |
b6741478 | 28 | #include <fcntl.h> |
86aa7ba4 LP |
29 | |
30 | #include "logs-show.h" | |
31 | #include "log.h" | |
32 | #include "util.h" | |
ba961854 | 33 | #include "utf8.h" |
d99ae53a | 34 | #include "hashmap.h" |
b6741478 | 35 | #include "fileio.h" |
dfb33a97 | 36 | #include "journal-internal.h" |
86aa7ba4 | 37 | |
a6f0104a ZJS |
38 | /* up to three lines (each up to 100 characters), |
39 | or 300 characters, whichever is less */ | |
40 | #define PRINT_LINE_THRESHOLD 3 | |
41 | #define PRINT_CHAR_THRESHOLD 300 | |
42 | ||
08ace05b | 43 | #define JSON_THRESHOLD 4096 |
86aa7ba4 | 44 | |
d4205751 LP |
45 | static int print_catalog(FILE *f, sd_journal *j) { |
46 | int r; | |
47 | _cleanup_free_ char *t = NULL, *z = NULL; | |
48 | ||
49 | ||
50 | r = sd_journal_get_catalog(j, &t); | |
51 | if (r < 0) | |
52 | return r; | |
53 | ||
54 | z = strreplace(strstrip(t), "\n", "\n-- "); | |
55 | if (!z) | |
56 | return log_oom(); | |
57 | ||
58 | fputs("-- ", f); | |
59 | fputs(z, f); | |
60 | fputc('\n', f); | |
61 | ||
62 | return 0; | |
63 | } | |
64 | ||
55d7bfc1 LP |
65 | static int parse_field(const void *data, size_t length, const char *field, char **target, size_t *target_size) { |
66 | size_t fl, nl; | |
67 | void *buf; | |
68 | ||
69 | assert(data); | |
70 | assert(field); | |
71 | assert(target); | |
72 | assert(target_size); | |
73 | ||
74 | fl = strlen(field); | |
75 | if (length < fl) | |
76 | return 0; | |
77 | ||
78 | if (memcmp(data, field, fl)) | |
79 | return 0; | |
80 | ||
81 | nl = length - fl; | |
bf967366 | 82 | buf = malloc(nl+1); |
0d0f0c50 SL |
83 | if (!buf) |
84 | return log_oom(); | |
55d7bfc1 | 85 | |
46b0d922 LP |
86 | memcpy(buf, (const char*) data + fl, nl); |
87 | ((char*)buf)[nl] = 0; | |
88 | ||
6c1e6b98 | 89 | free(*target); |
55d7bfc1 LP |
90 | *target = buf; |
91 | *target_size = nl; | |
92 | ||
93 | return 1; | |
94 | } | |
95 | ||
08ace05b LP |
96 | static bool shall_print(const char *p, size_t l, OutputFlags flags) { |
97 | assert(p); | |
98 | ||
99 | if (flags & OUTPUT_SHOW_ALL) | |
55d7bfc1 LP |
100 | return true; |
101 | ||
a6f0104a | 102 | if (l >= PRINT_CHAR_THRESHOLD) |
55d7bfc1 LP |
103 | return false; |
104 | ||
31f7bf19 | 105 | if (!utf8_is_printable(p, l)) |
55d7bfc1 LP |
106 | return false; |
107 | ||
108 | return true; | |
109 | } | |
110 | ||
00f117a5 | 111 | static bool print_multiline(FILE *f, unsigned prefix, unsigned n_columns, OutputFlags flags, int priority, const char* message, size_t message_len) { |
31f7bf19 ZJS |
112 | const char *color_on = "", *color_off = ""; |
113 | const char *pos, *end; | |
94e0bd7d | 114 | bool ellipsized = false; |
a6f0104a | 115 | int line = 0; |
31f7bf19 ZJS |
116 | |
117 | if (flags & OUTPUT_COLOR) { | |
118 | if (priority <= LOG_ERR) { | |
119 | color_on = ANSI_HIGHLIGHT_RED_ON; | |
120 | color_off = ANSI_HIGHLIGHT_OFF; | |
121 | } else if (priority <= LOG_NOTICE) { | |
122 | color_on = ANSI_HIGHLIGHT_ON; | |
123 | color_off = ANSI_HIGHLIGHT_OFF; | |
124 | } | |
125 | } | |
126 | ||
a6f0104a ZJS |
127 | for (pos = message; |
128 | pos < message + message_len; | |
129 | pos = end + 1, line++) { | |
130 | bool continuation = line > 0; | |
131 | bool tail_line; | |
31f7bf19 ZJS |
132 | int len; |
133 | for (end = pos; end < message + message_len && *end != '\n'; end++) | |
134 | ; | |
135 | len = end - pos; | |
136 | assert(len >= 0); | |
137 | ||
2526d626 | 138 | /* We need to figure out when we are showing not-last line, *and* |
a6f0104a ZJS |
139 | * will skip subsequent lines. In that case, we will put the dots |
140 | * at the end of the line, instead of putting dots in the middle | |
141 | * or not at all. | |
142 | */ | |
143 | tail_line = | |
144 | line + 1 == PRINT_LINE_THRESHOLD || | |
2526d626 | 145 | end + 1 >= message + PRINT_CHAR_THRESHOLD; |
a6f0104a ZJS |
146 | |
147 | if (flags & (OUTPUT_FULL_WIDTH | OUTPUT_SHOW_ALL) || | |
148 | (prefix + len + 1 < n_columns && !tail_line)) { | |
31f7bf19 ZJS |
149 | fprintf(f, "%*s%s%.*s%s\n", |
150 | continuation * prefix, "", | |
151 | color_on, len, pos, color_off); | |
a6f0104a ZJS |
152 | continue; |
153 | } | |
31f7bf19 | 154 | |
a6f0104a ZJS |
155 | /* Beyond this point, ellipsization will happen. */ |
156 | ellipsized = true; | |
31f7bf19 | 157 | |
a6f0104a ZJS |
158 | if (prefix < n_columns && n_columns - prefix >= 3) { |
159 | if (n_columns - prefix > (unsigned) len + 3) | |
160 | fprintf(f, "%*s%s%.*s...%s\n", | |
b4b02cbe ZJS |
161 | continuation * prefix, "", |
162 | color_on, len, pos, color_off); | |
a6f0104a ZJS |
163 | else { |
164 | _cleanup_free_ char *e; | |
165 | ||
166 | e = ellipsize_mem(pos, len, n_columns - prefix, | |
167 | tail_line ? 100 : 90); | |
168 | if (!e) | |
169 | fprintf(f, "%*s%s%.*s%s\n", | |
170 | continuation * prefix, "", | |
171 | color_on, len, pos, color_off); | |
172 | else | |
173 | fprintf(f, "%*s%s%s%s\n", | |
174 | continuation * prefix, "", | |
175 | color_on, e, color_off); | |
176 | } | |
177 | } else | |
31f7bf19 ZJS |
178 | fputs("...\n", f); |
179 | ||
a6f0104a ZJS |
180 | if (tail_line) |
181 | break; | |
31f7bf19 | 182 | } |
94e0bd7d ZJS |
183 | |
184 | return ellipsized; | |
31f7bf19 ZJS |
185 | } |
186 | ||
08ace05b LP |
187 | static int output_short( |
188 | FILE *f, | |
189 | sd_journal *j, | |
190 | OutputMode mode, | |
191 | unsigned n_columns, | |
192 | OutputFlags flags) { | |
193 | ||
86aa7ba4 | 194 | int r; |
86aa7ba4 LP |
195 | const void *data; |
196 | size_t length; | |
197 | size_t n = 0; | |
08ace05b | 198 | _cleanup_free_ char *hostname = NULL, *identifier = NULL, *comm = NULL, *pid = NULL, *fake_pid = NULL, *message = NULL, *realtime = NULL, *monotonic = NULL, *priority = NULL; |
49826187 LP |
199 | size_t hostname_len = 0, identifier_len = 0, comm_len = 0, pid_len = 0, fake_pid_len = 0, message_len = 0, realtime_len = 0, monotonic_len = 0, priority_len = 0; |
200 | int p = LOG_INFO; | |
94e0bd7d | 201 | bool ellipsized = false; |
86aa7ba4 | 202 | |
08ace05b | 203 | assert(f); |
86aa7ba4 LP |
204 | assert(j); |
205 | ||
a6f0104a | 206 | /* Set the threshold to one bigger than the actual print |
69ab8088 | 207 | * threshold, so that if the line is actually longer than what |
a6f0104a ZJS |
208 | * we're willing to print, ellipsization will occur. This way |
209 | * we won't output a misleading line without any indication of | |
210 | * truncation. | |
211 | */ | |
212 | sd_journal_set_data_threshold(j, flags & (OUTPUT_SHOW_ALL|OUTPUT_FULL_WIDTH) ? 0 : PRINT_CHAR_THRESHOLD + 1); | |
93b73b06 | 213 | |
a72b6353 | 214 | JOURNAL_FOREACH_DATA_RETVAL(j, data, length, r) { |
55d7bfc1 | 215 | |
49826187 LP |
216 | r = parse_field(data, length, "PRIORITY=", &priority, &priority_len); |
217 | if (r < 0) | |
08ace05b | 218 | return r; |
49826187 LP |
219 | else if (r > 0) |
220 | continue; | |
221 | ||
55d7bfc1 LP |
222 | r = parse_field(data, length, "_HOSTNAME=", &hostname, &hostname_len); |
223 | if (r < 0) | |
08ace05b | 224 | return r; |
55d7bfc1 LP |
225 | else if (r > 0) |
226 | continue; | |
227 | ||
4cd9a9d9 | 228 | r = parse_field(data, length, "SYSLOG_IDENTIFIER=", &identifier, &identifier_len); |
55d7bfc1 | 229 | if (r < 0) |
08ace05b | 230 | return r; |
55d7bfc1 LP |
231 | else if (r > 0) |
232 | continue; | |
233 | ||
234 | r = parse_field(data, length, "_COMM=", &comm, &comm_len); | |
235 | if (r < 0) | |
08ace05b | 236 | return r; |
55d7bfc1 LP |
237 | else if (r > 0) |
238 | continue; | |
239 | ||
240 | r = parse_field(data, length, "_PID=", &pid, &pid_len); | |
241 | if (r < 0) | |
08ace05b | 242 | return r; |
55d7bfc1 LP |
243 | else if (r > 0) |
244 | continue; | |
245 | ||
6c1e6b98 LP |
246 | r = parse_field(data, length, "SYSLOG_PID=", &fake_pid, &fake_pid_len); |
247 | if (r < 0) | |
08ace05b | 248 | return r; |
6c1e6b98 LP |
249 | else if (r > 0) |
250 | continue; | |
251 | ||
bf967366 LP |
252 | r = parse_field(data, length, "_SOURCE_REALTIME_TIMESTAMP=", &realtime, &realtime_len); |
253 | if (r < 0) | |
08ace05b | 254 | return r; |
bf967366 LP |
255 | else if (r > 0) |
256 | continue; | |
257 | ||
258 | r = parse_field(data, length, "_SOURCE_MONOTONIC_TIMESTAMP=", &monotonic, &monotonic_len); | |
259 | if (r < 0) | |
08ace05b | 260 | return r; |
bf967366 LP |
261 | else if (r > 0) |
262 | continue; | |
263 | ||
55d7bfc1 LP |
264 | r = parse_field(data, length, "MESSAGE=", &message, &message_len); |
265 | if (r < 0) | |
08ace05b | 266 | return r; |
55d7bfc1 LP |
267 | } |
268 | ||
a72b6353 ZJS |
269 | if (r < 0) |
270 | return r; | |
271 | ||
08ace05b LP |
272 | if (!message) |
273 | return 0; | |
55d7bfc1 | 274 | |
e8bc0ea2 LP |
275 | if (!(flags & OUTPUT_SHOW_ALL)) |
276 | strip_tab_ansi(&message, &message_len); | |
277 | ||
49826187 LP |
278 | if (priority_len == 1 && *priority >= '0' && *priority <= '7') |
279 | p = *priority - '0'; | |
280 | ||
a6e87e90 | 281 | if (mode == OUTPUT_SHORT_MONOTONIC) { |
67a12205 | 282 | uint64_t t; |
3ebcdf8c LP |
283 | sd_id128_t boot_id; |
284 | ||
bf967366 LP |
285 | r = -ENOENT; |
286 | ||
287 | if (monotonic) | |
288 | r = safe_atou64(monotonic, &t); | |
289 | ||
290 | if (r < 0) | |
3ebcdf8c | 291 | r = sd_journal_get_monotonic_usec(j, &t, &boot_id); |
86aa7ba4 | 292 | |
3ebcdf8c | 293 | if (r < 0) { |
a72b6353 | 294 | log_error("Failed to get monotonic timestamp: %s", strerror(-r)); |
08ace05b | 295 | return r; |
67a12205 LP |
296 | } |
297 | ||
08ace05b LP |
298 | fprintf(f, "[%5llu.%06llu]", |
299 | (unsigned long long) (t / USEC_PER_SEC), | |
300 | (unsigned long long) (t % USEC_PER_SEC)); | |
3ebcdf8c LP |
301 | |
302 | n += 1 + 5 + 1 + 6 + 1; | |
303 | ||
67a12205 LP |
304 | } else { |
305 | char buf[64]; | |
bf967366 | 306 | uint64_t x; |
67a12205 LP |
307 | time_t t; |
308 | struct tm tm; | |
731a676c | 309 | |
bf967366 LP |
310 | r = -ENOENT; |
311 | ||
312 | if (realtime) | |
313 | r = safe_atou64(realtime, &x); | |
314 | ||
315 | if (r < 0) | |
316 | r = sd_journal_get_realtime_usec(j, &x); | |
67a12205 | 317 | |
67a12205 | 318 | if (r < 0) { |
a72b6353 | 319 | log_error("Failed to get realtime timestamp: %s", strerror(-r)); |
08ace05b | 320 | return r; |
67a12205 LP |
321 | } |
322 | ||
bf967366 | 323 | t = (time_t) (x / USEC_PER_SEC); |
f02d8367 ZJS |
324 | |
325 | switch(mode) { | |
326 | case OUTPUT_SHORT_ISO: | |
44bc6e1f | 327 | r = strftime(buf, sizeof(buf), "%Y-%m-%dT%H:%M:%S%z", localtime_r(&t, &tm)); |
f02d8367 ZJS |
328 | break; |
329 | case OUTPUT_SHORT_PRECISE: | |
330 | r = strftime(buf, sizeof(buf), "%b %d %H:%M:%S", localtime_r(&t, &tm)); | |
331 | if (r > 0) { | |
332 | snprintf(buf + strlen(buf), sizeof(buf) - strlen(buf), | |
333 | ".%06llu", x % USEC_PER_SEC); | |
334 | } | |
335 | break; | |
336 | default: | |
44bc6e1f | 337 | r = strftime(buf, sizeof(buf), "%b %d %H:%M:%S", localtime_r(&t, &tm)); |
f02d8367 | 338 | } |
44bc6e1f TT |
339 | |
340 | if (r <= 0) { | |
67a12205 | 341 | log_error("Failed to format time."); |
44bc6e1f | 342 | return -EINVAL; |
67a12205 LP |
343 | } |
344 | ||
08ace05b | 345 | fputs(buf, f); |
67a12205 LP |
346 | n += strlen(buf); |
347 | } | |
86aa7ba4 | 348 | |
08ace05b LP |
349 | if (hostname && shall_print(hostname, hostname_len, flags)) { |
350 | fprintf(f, " %.*s", (int) hostname_len, hostname); | |
55d7bfc1 LP |
351 | n += hostname_len + 1; |
352 | } | |
353 | ||
08ace05b LP |
354 | if (identifier && shall_print(identifier, identifier_len, flags)) { |
355 | fprintf(f, " %.*s", (int) identifier_len, identifier); | |
4cd9a9d9 | 356 | n += identifier_len + 1; |
08ace05b LP |
357 | } else if (comm && shall_print(comm, comm_len, flags)) { |
358 | fprintf(f, " %.*s", (int) comm_len, comm); | |
55d7bfc1 | 359 | n += comm_len + 1; |
b5936820 | 360 | } else |
08ace05b | 361 | fputc(' ', f); |
86aa7ba4 | 362 | |
08ace05b LP |
363 | if (pid && shall_print(pid, pid_len, flags)) { |
364 | fprintf(f, "[%.*s]", (int) pid_len, pid); | |
55d7bfc1 | 365 | n += pid_len + 2; |
08ace05b LP |
366 | } else if (fake_pid && shall_print(fake_pid, fake_pid_len, flags)) { |
367 | fprintf(f, "[%.*s]", (int) fake_pid_len, fake_pid); | |
6c1e6b98 | 368 | n += fake_pid_len + 2; |
86aa7ba4 LP |
369 | } |
370 | ||
31f7bf19 | 371 | if (!(flags & OUTPUT_SHOW_ALL) && !utf8_is_printable(message, message_len)) { |
e6acda19 | 372 | char bytes[FORMAT_BYTES_MAX]; |
08ace05b | 373 | fprintf(f, ": [%s blob data]\n", format_bytes(bytes, sizeof(bytes), message_len)); |
31f7bf19 ZJS |
374 | } else { |
375 | fputs(": ", f); | |
94e0bd7d ZJS |
376 | ellipsized |= |
377 | print_multiline(f, n + 2, n_columns, flags, p, message, message_len); | |
31f7bf19 | 378 | } |
55d7bfc1 | 379 | |
d4205751 LP |
380 | if (flags & OUTPUT_CATALOG) |
381 | print_catalog(f, j); | |
382 | ||
94e0bd7d | 383 | return ellipsized; |
86aa7ba4 LP |
384 | } |
385 | ||
08ace05b LP |
386 | static int output_verbose( |
387 | FILE *f, | |
388 | sd_journal *j, | |
389 | OutputMode mode, | |
390 | unsigned n_columns, | |
391 | OutputFlags flags) { | |
392 | ||
86aa7ba4 LP |
393 | const void *data; |
394 | size_t length; | |
7fd1b19b | 395 | _cleanup_free_ char *cursor = NULL; |
86aa7ba4 | 396 | uint64_t realtime; |
f02d8367 | 397 | char ts[FORMAT_TIMESTAMP_MAX + 7]; |
86aa7ba4 LP |
398 | int r; |
399 | ||
08ace05b | 400 | assert(f); |
86aa7ba4 LP |
401 | assert(j); |
402 | ||
93b73b06 LP |
403 | sd_journal_set_data_threshold(j, 0); |
404 | ||
cf40f0be ZJS |
405 | r = sd_journal_get_data(j, "_SOURCE_REALTIME_TIMESTAMP", &data, &length); |
406 | if (r == -ENOENT) | |
407 | log_debug("Source realtime timestamp not found"); | |
408 | else if (r < 0) { | |
a72b6353 | 409 | log_full(r == -EADDRNOTAVAIL ? LOG_DEBUG : LOG_ERR, |
cf40f0be | 410 | "Failed to get source realtime timestamp: %s", strerror(-r)); |
86aa7ba4 | 411 | return r; |
cf40f0be ZJS |
412 | } else { |
413 | _cleanup_free_ char *value = NULL; | |
414 | size_t size; | |
415 | ||
416 | r = parse_field(data, length, "_SOURCE_REALTIME_TIMESTAMP=", &value, &size); | |
417 | if (r < 0) | |
418 | log_debug("_SOURCE_REALTIME_TIMESTAMP invalid: %s", strerror(-r)); | |
419 | else { | |
420 | r = safe_atou64(value, &realtime); | |
421 | if (r < 0) | |
422 | log_debug("Failed to parse realtime timestamp: %s", | |
423 | strerror(-r)); | |
424 | } | |
425 | } | |
426 | ||
427 | if (r < 0) { | |
428 | r = sd_journal_get_realtime_usec(j, &realtime); | |
429 | if (r < 0) { | |
430 | log_full(r == -EADDRNOTAVAIL ? LOG_DEBUG : LOG_ERR, | |
431 | "Failed to get realtime timestamp: %s", strerror(-r)); | |
432 | return r; | |
433 | } | |
86aa7ba4 LP |
434 | } |
435 | ||
436 | r = sd_journal_get_cursor(j, &cursor); | |
437 | if (r < 0) { | |
438 | log_error("Failed to get cursor: %s", strerror(-r)); | |
439 | return r; | |
440 | } | |
441 | ||
08ace05b | 442 | fprintf(f, "%s [%s]\n", |
f02d8367 | 443 | format_timestamp_us(ts, sizeof(ts), realtime), |
08ace05b | 444 | cursor); |
86aa7ba4 | 445 | |
a72b6353 | 446 | JOURNAL_FOREACH_DATA_RETVAL(j, data, length, r) { |
31f7bf19 ZJS |
447 | const char *c; |
448 | int fieldlen; | |
7ac4fa7e ZJS |
449 | const char *on = "", *off = ""; |
450 | ||
31f7bf19 ZJS |
451 | c = memchr(data, '=', length); |
452 | if (!c) { | |
453 | log_error("Invalid field."); | |
454 | return -EINVAL; | |
455 | } | |
456 | fieldlen = c - (const char*) data; | |
86aa7ba4 | 457 | |
7ac4fa7e ZJS |
458 | if (flags & OUTPUT_COLOR && startswith(data, "MESSAGE=")) { |
459 | on = ANSI_HIGHLIGHT_ON; | |
460 | off = ANSI_HIGHLIGHT_OFF; | |
461 | } | |
462 | ||
463 | if (flags & OUTPUT_SHOW_ALL || | |
a6f0104a ZJS |
464 | (((length < PRINT_CHAR_THRESHOLD) || flags & OUTPUT_FULL_WIDTH) |
465 | && utf8_is_printable(data, length))) { | |
7ac4fa7e | 466 | fprintf(f, " %s%.*s=", on, fieldlen, (const char*)data); |
31f7bf19 | 467 | print_multiline(f, 4 + fieldlen + 1, 0, OUTPUT_FULL_WIDTH, 0, c + 1, length - fieldlen - 1); |
7ac4fa7e | 468 | fputs(off, f); |
31f7bf19 ZJS |
469 | } else { |
470 | char bytes[FORMAT_BYTES_MAX]; | |
86aa7ba4 | 471 | |
7ac4fa7e ZJS |
472 | fprintf(f, " %s%.*s=[%s blob data]%s\n", |
473 | on, | |
31f7bf19 ZJS |
474 | (int) (c - (const char*) data), |
475 | (const char*) data, | |
7ac4fa7e ZJS |
476 | format_bytes(bytes, sizeof(bytes), length - (c - (const char *) data) - 1), |
477 | off); | |
31f7bf19 | 478 | } |
86aa7ba4 LP |
479 | } |
480 | ||
a72b6353 ZJS |
481 | if (r < 0) |
482 | return r; | |
483 | ||
d4205751 LP |
484 | if (flags & OUTPUT_CATALOG) |
485 | print_catalog(f, j); | |
486 | ||
86aa7ba4 LP |
487 | return 0; |
488 | } | |
489 | ||
08ace05b LP |
490 | static int output_export( |
491 | FILE *f, | |
492 | sd_journal *j, | |
493 | OutputMode mode, | |
494 | unsigned n_columns, | |
495 | OutputFlags flags) { | |
496 | ||
86aa7ba4 LP |
497 | sd_id128_t boot_id; |
498 | char sid[33]; | |
499 | int r; | |
500 | usec_t realtime, monotonic; | |
7fd1b19b | 501 | _cleanup_free_ char *cursor = NULL; |
86aa7ba4 LP |
502 | const void *data; |
503 | size_t length; | |
504 | ||
505 | assert(j); | |
506 | ||
93b73b06 LP |
507 | sd_journal_set_data_threshold(j, 0); |
508 | ||
86aa7ba4 LP |
509 | r = sd_journal_get_realtime_usec(j, &realtime); |
510 | if (r < 0) { | |
511 | log_error("Failed to get realtime timestamp: %s", strerror(-r)); | |
512 | return r; | |
513 | } | |
514 | ||
515 | r = sd_journal_get_monotonic_usec(j, &monotonic, &boot_id); | |
516 | if (r < 0) { | |
517 | log_error("Failed to get monotonic timestamp: %s", strerror(-r)); | |
518 | return r; | |
519 | } | |
520 | ||
521 | r = sd_journal_get_cursor(j, &cursor); | |
522 | if (r < 0) { | |
523 | log_error("Failed to get cursor: %s", strerror(-r)); | |
524 | return r; | |
525 | } | |
526 | ||
08ace05b LP |
527 | fprintf(f, |
528 | "__CURSOR=%s\n" | |
529 | "__REALTIME_TIMESTAMP=%llu\n" | |
530 | "__MONOTONIC_TIMESTAMP=%llu\n" | |
531 | "_BOOT_ID=%s\n", | |
532 | cursor, | |
533 | (unsigned long long) realtime, | |
534 | (unsigned long long) monotonic, | |
535 | sd_id128_to_string(boot_id, sid)); | |
86aa7ba4 | 536 | |
a72b6353 | 537 | JOURNAL_FOREACH_DATA_RETVAL(j, data, length, r) { |
86aa7ba4 | 538 | |
112301ae LP |
539 | /* We already printed the boot id, from the data in |
540 | * the header, hence let's suppress it here */ | |
541 | if (length >= 9 && | |
2a0e0692 | 542 | startswith(data, "_BOOT_ID=")) |
112301ae LP |
543 | continue; |
544 | ||
31f7bf19 | 545 | if (!utf8_is_printable(data, length)) { |
86aa7ba4 LP |
546 | const char *c; |
547 | uint64_t le64; | |
548 | ||
549 | c = memchr(data, '=', length); | |
550 | if (!c) { | |
551 | log_error("Invalid field."); | |
552 | return -EINVAL; | |
553 | } | |
554 | ||
08ace05b LP |
555 | fwrite(data, c - (const char*) data, 1, f); |
556 | fputc('\n', f); | |
86aa7ba4 | 557 | le64 = htole64(length - (c - (const char*) data) - 1); |
08ace05b LP |
558 | fwrite(&le64, sizeof(le64), 1, f); |
559 | fwrite(c + 1, length - (c - (const char*) data) - 1, 1, f); | |
86aa7ba4 | 560 | } else |
08ace05b | 561 | fwrite(data, length, 1, f); |
86aa7ba4 | 562 | |
08ace05b | 563 | fputc('\n', f); |
86aa7ba4 LP |
564 | } |
565 | ||
a72b6353 ZJS |
566 | if (r < 0) |
567 | return r; | |
568 | ||
08ace05b | 569 | fputc('\n', f); |
86aa7ba4 LP |
570 | |
571 | return 0; | |
572 | } | |
573 | ||
240a5fe8 | 574 | void json_escape( |
08ace05b LP |
575 | FILE *f, |
576 | const char* p, | |
577 | size_t l, | |
578 | OutputFlags flags) { | |
579 | ||
580 | assert(f); | |
581 | assert(p); | |
582 | ||
93b73b06 | 583 | if (!(flags & OUTPUT_SHOW_ALL) && l >= JSON_THRESHOLD) |
08ace05b LP |
584 | |
585 | fputs("null", f); | |
586 | ||
31f7bf19 | 587 | else if (!utf8_is_printable(p, l)) { |
86aa7ba4 LP |
588 | bool not_first = false; |
589 | ||
08ace05b | 590 | fputs("[ ", f); |
86aa7ba4 LP |
591 | |
592 | while (l > 0) { | |
593 | if (not_first) | |
08ace05b | 594 | fprintf(f, ", %u", (uint8_t) *p); |
86aa7ba4 LP |
595 | else { |
596 | not_first = true; | |
08ace05b | 597 | fprintf(f, "%u", (uint8_t) *p); |
86aa7ba4 LP |
598 | } |
599 | ||
600 | p++; | |
601 | l--; | |
602 | } | |
603 | ||
08ace05b | 604 | fputs(" ]", f); |
86aa7ba4 | 605 | } else { |
08ace05b | 606 | fputc('\"', f); |
86aa7ba4 LP |
607 | |
608 | while (l > 0) { | |
609 | if (*p == '"' || *p == '\\') { | |
08ace05b LP |
610 | fputc('\\', f); |
611 | fputc(*p, f); | |
31f7bf19 ZJS |
612 | } else if (*p == '\n') |
613 | fputs("\\n", f); | |
614 | else if (*p < ' ') | |
08ace05b LP |
615 | fprintf(f, "\\u%04x", *p); |
616 | else | |
617 | fputc(*p, f); | |
86aa7ba4 LP |
618 | |
619 | p++; | |
620 | l--; | |
621 | } | |
622 | ||
08ace05b | 623 | fputc('\"', f); |
86aa7ba4 LP |
624 | } |
625 | } | |
626 | ||
08ace05b LP |
627 | static int output_json( |
628 | FILE *f, | |
629 | sd_journal *j, | |
630 | OutputMode mode, | |
631 | unsigned n_columns, | |
632 | OutputFlags flags) { | |
633 | ||
86aa7ba4 | 634 | uint64_t realtime, monotonic; |
7fd1b19b | 635 | _cleanup_free_ char *cursor = NULL; |
86aa7ba4 LP |
636 | const void *data; |
637 | size_t length; | |
638 | sd_id128_t boot_id; | |
2e729834 | 639 | char sid[33], *k; |
86aa7ba4 | 640 | int r; |
d99ae53a LP |
641 | Hashmap *h = NULL; |
642 | bool done, separator; | |
86aa7ba4 LP |
643 | |
644 | assert(j); | |
645 | ||
93b73b06 LP |
646 | sd_journal_set_data_threshold(j, flags & OUTPUT_SHOW_ALL ? 0 : JSON_THRESHOLD); |
647 | ||
86aa7ba4 LP |
648 | r = sd_journal_get_realtime_usec(j, &realtime); |
649 | if (r < 0) { | |
650 | log_error("Failed to get realtime timestamp: %s", strerror(-r)); | |
651 | return r; | |
652 | } | |
653 | ||
654 | r = sd_journal_get_monotonic_usec(j, &monotonic, &boot_id); | |
655 | if (r < 0) { | |
656 | log_error("Failed to get monotonic timestamp: %s", strerror(-r)); | |
657 | return r; | |
658 | } | |
659 | ||
660 | r = sd_journal_get_cursor(j, &cursor); | |
661 | if (r < 0) { | |
662 | log_error("Failed to get cursor: %s", strerror(-r)); | |
663 | return r; | |
664 | } | |
665 | ||
a6e87e90 | 666 | if (mode == OUTPUT_JSON_PRETTY) |
08ace05b LP |
667 | fprintf(f, |
668 | "{\n" | |
669 | "\t\"__CURSOR\" : \"%s\",\n" | |
670 | "\t\"__REALTIME_TIMESTAMP\" : \"%llu\",\n" | |
671 | "\t\"__MONOTONIC_TIMESTAMP\" : \"%llu\",\n" | |
672 | "\t\"_BOOT_ID\" : \"%s\"", | |
673 | cursor, | |
674 | (unsigned long long) realtime, | |
675 | (unsigned long long) monotonic, | |
676 | sd_id128_to_string(boot_id, sid)); | |
48383c25 LP |
677 | else { |
678 | if (mode == OUTPUT_JSON_SSE) | |
679 | fputs("data: ", f); | |
680 | ||
08ace05b LP |
681 | fprintf(f, |
682 | "{ \"__CURSOR\" : \"%s\", " | |
683 | "\"__REALTIME_TIMESTAMP\" : \"%llu\", " | |
684 | "\"__MONOTONIC_TIMESTAMP\" : \"%llu\", " | |
685 | "\"_BOOT_ID\" : \"%s\"", | |
686 | cursor, | |
687 | (unsigned long long) realtime, | |
688 | (unsigned long long) monotonic, | |
689 | sd_id128_to_string(boot_id, sid)); | |
48383c25 | 690 | } |
86aa7ba4 | 691 | |
d99ae53a LP |
692 | h = hashmap_new(string_hash_func, string_compare_func); |
693 | if (!h) | |
694 | return -ENOMEM; | |
695 | ||
696 | /* First round, iterate through the entry and count how often each field appears */ | |
a72b6353 | 697 | JOURNAL_FOREACH_DATA_RETVAL(j, data, length, r) { |
d99ae53a LP |
698 | const char *eq; |
699 | char *n; | |
700 | unsigned u; | |
86aa7ba4 | 701 | |
112301ae LP |
702 | if (length >= 9 && |
703 | memcmp(data, "_BOOT_ID=", 9) == 0) | |
704 | continue; | |
705 | ||
d99ae53a LP |
706 | eq = memchr(data, '=', length); |
707 | if (!eq) | |
708 | continue; | |
86aa7ba4 | 709 | |
d99ae53a LP |
710 | n = strndup(data, eq - (const char*) data); |
711 | if (!n) { | |
712 | r = -ENOMEM; | |
713 | goto finish; | |
714 | } | |
a6e87e90 | 715 | |
d99ae53a LP |
716 | u = PTR_TO_UINT(hashmap_get(h, n)); |
717 | if (u == 0) { | |
718 | r = hashmap_put(h, n, UINT_TO_PTR(1)); | |
719 | if (r < 0) { | |
720 | free(n); | |
721 | goto finish; | |
722 | } | |
723 | } else { | |
724 | r = hashmap_update(h, n, UINT_TO_PTR(u + 1)); | |
725 | free(n); | |
726 | if (r < 0) | |
727 | goto finish; | |
728 | } | |
86aa7ba4 LP |
729 | } |
730 | ||
a72b6353 ZJS |
731 | if (r < 0) |
732 | return r; | |
733 | ||
d99ae53a LP |
734 | separator = true; |
735 | do { | |
736 | done = true; | |
737 | ||
738 | SD_JOURNAL_FOREACH_DATA(j, data, length) { | |
739 | const char *eq; | |
740 | char *kk, *n; | |
741 | size_t m; | |
742 | unsigned u; | |
743 | ||
744 | /* We already printed the boot id, from the data in | |
745 | * the header, hence let's suppress it here */ | |
746 | if (length >= 9 && | |
747 | memcmp(data, "_BOOT_ID=", 9) == 0) | |
748 | continue; | |
749 | ||
750 | eq = memchr(data, '=', length); | |
751 | if (!eq) | |
752 | continue; | |
753 | ||
754 | if (separator) { | |
755 | if (mode == OUTPUT_JSON_PRETTY) | |
756 | fputs(",\n\t", f); | |
757 | else | |
758 | fputs(", ", f); | |
759 | } | |
760 | ||
761 | m = eq - (const char*) data; | |
762 | ||
763 | n = strndup(data, m); | |
764 | if (!n) { | |
765 | r = -ENOMEM; | |
766 | goto finish; | |
767 | } | |
768 | ||
769 | u = PTR_TO_UINT(hashmap_get2(h, n, (void**) &kk)); | |
770 | if (u == 0) { | |
771 | /* We already printed this, let's jump to the next */ | |
772 | free(n); | |
773 | separator = false; | |
774 | ||
775 | continue; | |
776 | } else if (u == 1) { | |
777 | /* Field only appears once, output it directly */ | |
778 | ||
779 | json_escape(f, data, m, flags); | |
780 | fputs(" : ", f); | |
781 | ||
782 | json_escape(f, eq + 1, length - m - 1, flags); | |
783 | ||
784 | hashmap_remove(h, n); | |
785 | free(kk); | |
786 | free(n); | |
787 | ||
788 | separator = true; | |
789 | ||
790 | continue; | |
791 | ||
792 | } else { | |
793 | /* Field appears multiple times, output it as array */ | |
794 | json_escape(f, data, m, flags); | |
795 | fputs(" : [ ", f); | |
796 | json_escape(f, eq + 1, length - m - 1, flags); | |
797 | ||
798 | /* Iterate through the end of the list */ | |
799 | ||
800 | while (sd_journal_enumerate_data(j, &data, &length) > 0) { | |
801 | if (length < m + 1) | |
802 | continue; | |
803 | ||
804 | if (memcmp(data, n, m) != 0) | |
805 | continue; | |
806 | ||
807 | if (((const char*) data)[m] != '=') | |
808 | continue; | |
809 | ||
810 | fputs(", ", f); | |
811 | json_escape(f, (const char*) data + m + 1, length - m - 1, flags); | |
812 | } | |
813 | ||
814 | fputs(" ]", f); | |
815 | ||
816 | hashmap_remove(h, n); | |
817 | free(kk); | |
818 | free(n); | |
819 | ||
820 | /* Iterate data fields form the beginning */ | |
821 | done = false; | |
822 | separator = true; | |
823 | ||
824 | break; | |
825 | } | |
826 | } | |
827 | ||
828 | } while (!done); | |
829 | ||
a6e87e90 | 830 | if (mode == OUTPUT_JSON_PRETTY) |
08ace05b | 831 | fputs("\n}\n", f); |
48383c25 LP |
832 | else if (mode == OUTPUT_JSON_SSE) |
833 | fputs("}\n\n", f); | |
a6e87e90 | 834 | else |
08ace05b | 835 | fputs(" }\n", f); |
86aa7ba4 | 836 | |
d99ae53a LP |
837 | r = 0; |
838 | ||
839 | finish: | |
840 | while ((k = hashmap_steal_first_key(h))) | |
841 | free(k); | |
842 | ||
843 | hashmap_free(h); | |
844 | ||
845 | return r; | |
86aa7ba4 LP |
846 | } |
847 | ||
08ace05b LP |
848 | static int output_cat( |
849 | FILE *f, | |
850 | sd_journal *j, | |
851 | OutputMode mode, | |
852 | unsigned n_columns, | |
853 | OutputFlags flags) { | |
854 | ||
d3f2bdbf LP |
855 | const void *data; |
856 | size_t l; | |
857 | int r; | |
858 | ||
859 | assert(j); | |
08ace05b | 860 | assert(f); |
d3f2bdbf | 861 | |
93b73b06 LP |
862 | sd_journal_set_data_threshold(j, 0); |
863 | ||
d3f2bdbf LP |
864 | r = sd_journal_get_data(j, "MESSAGE", &data, &l); |
865 | if (r < 0) { | |
c198300f LP |
866 | /* An entry without MESSAGE=? */ |
867 | if (r == -ENOENT) | |
868 | return 0; | |
869 | ||
d3f2bdbf LP |
870 | log_error("Failed to get data: %s", strerror(-r)); |
871 | return r; | |
872 | } | |
873 | ||
874 | assert(l >= 8); | |
875 | ||
08ace05b LP |
876 | fwrite((const char*) data + 8, 1, l - 8, f); |
877 | fputc('\n', f); | |
d3f2bdbf LP |
878 | |
879 | return 0; | |
880 | } | |
881 | ||
08ace05b LP |
882 | static int (*output_funcs[_OUTPUT_MODE_MAX])( |
883 | FILE *f, | |
884 | sd_journal*j, | |
885 | OutputMode mode, | |
886 | unsigned n_columns, | |
887 | OutputFlags flags) = { | |
888 | ||
a6e87e90 | 889 | [OUTPUT_SHORT] = output_short, |
44bc6e1f | 890 | [OUTPUT_SHORT_ISO] = output_short, |
f02d8367 ZJS |
891 | [OUTPUT_SHORT_PRECISE] = output_short, |
892 | [OUTPUT_SHORT_MONOTONIC] = output_short, | |
86aa7ba4 LP |
893 | [OUTPUT_VERBOSE] = output_verbose, |
894 | [OUTPUT_EXPORT] = output_export, | |
d3f2bdbf | 895 | [OUTPUT_JSON] = output_json, |
a6e87e90 | 896 | [OUTPUT_JSON_PRETTY] = output_json, |
48383c25 | 897 | [OUTPUT_JSON_SSE] = output_json, |
d3f2bdbf | 898 | [OUTPUT_CAT] = output_cat |
86aa7ba4 LP |
899 | }; |
900 | ||
08ace05b LP |
901 | int output_journal( |
902 | FILE *f, | |
903 | sd_journal *j, | |
904 | OutputMode mode, | |
905 | unsigned n_columns, | |
94e0bd7d ZJS |
906 | OutputFlags flags, |
907 | bool *ellipsized) { | |
08ace05b | 908 | |
e268b81e | 909 | int ret; |
df50185b | 910 | assert(mode >= 0); |
86aa7ba4 LP |
911 | assert(mode < _OUTPUT_MODE_MAX); |
912 | ||
34a35ece LP |
913 | if (n_columns <= 0) |
914 | n_columns = columns(); | |
915 | ||
08ace05b | 916 | ret = output_funcs[mode](f, j, mode, n_columns, flags); |
e268b81e | 917 | fflush(stdout); |
94e0bd7d ZJS |
918 | |
919 | if (ellipsized && ret > 0) | |
920 | *ellipsized = true; | |
921 | ||
e268b81e | 922 | return ret; |
86aa7ba4 LP |
923 | } |
924 | ||
1a6c43e9 MT |
925 | static int show_journal(FILE *f, |
926 | sd_journal *j, | |
927 | OutputMode mode, | |
928 | unsigned n_columns, | |
929 | usec_t not_before, | |
930 | unsigned how_many, | |
94e0bd7d ZJS |
931 | OutputFlags flags, |
932 | bool *ellipsized) { | |
86aa7ba4 | 933 | |
86aa7ba4 | 934 | int r; |
df50185b LP |
935 | unsigned line = 0; |
936 | bool need_seek = false; | |
085d7120 | 937 | int warn_cutoff = flags & OUTPUT_WARN_CUTOFF; |
86aa7ba4 | 938 | |
1a6c43e9 | 939 | assert(j); |
df50185b LP |
940 | assert(mode >= 0); |
941 | assert(mode < _OUTPUT_MODE_MAX); | |
1946b0bd LP |
942 | |
943 | /* Seek to end */ | |
86aa7ba4 LP |
944 | r = sd_journal_seek_tail(j); |
945 | if (r < 0) | |
946 | goto finish; | |
947 | ||
df50185b LP |
948 | r = sd_journal_previous_skip(j, how_many); |
949 | if (r < 0) | |
950 | goto finish; | |
86aa7ba4 | 951 | |
df50185b LP |
952 | for (;;) { |
953 | for (;;) { | |
954 | usec_t usec; | |
955 | ||
956 | if (need_seek) { | |
957 | r = sd_journal_next(j); | |
958 | if (r < 0) | |
959 | goto finish; | |
960 | } | |
961 | ||
962 | if (r == 0) | |
963 | break; | |
86aa7ba4 | 964 | |
df50185b LP |
965 | need_seek = true; |
966 | ||
967 | if (not_before > 0) { | |
968 | r = sd_journal_get_monotonic_usec(j, &usec, NULL); | |
969 | ||
970 | /* -ESTALE is returned if the | |
971 | timestamp is not from this boot */ | |
972 | if (r == -ESTALE) | |
973 | continue; | |
974 | else if (r < 0) | |
975 | goto finish; | |
976 | ||
977 | if (usec < not_before) | |
978 | continue; | |
979 | } | |
980 | ||
981 | line ++; | |
982 | ||
94e0bd7d | 983 | r = output_journal(f, j, mode, n_columns, flags, ellipsized); |
df50185b LP |
984 | if (r < 0) |
985 | goto finish; | |
986 | } | |
987 | ||
08984293 LP |
988 | if (warn_cutoff && line < how_many && not_before > 0) { |
989 | sd_id128_t boot_id; | |
990 | usec_t cutoff; | |
991 | ||
992 | /* Check whether the cutoff line is too early */ | |
993 | ||
994 | r = sd_id128_get_boot(&boot_id); | |
995 | if (r < 0) | |
996 | goto finish; | |
997 | ||
998 | r = sd_journal_get_cutoff_monotonic_usec(j, boot_id, &cutoff, NULL); | |
999 | if (r < 0) | |
1000 | goto finish; | |
1001 | ||
b59866ae | 1002 | if (r > 0 && not_before < cutoff) |
08ace05b | 1003 | fprintf(f, "Warning: Journal has been rotated since unit was started. Log output is incomplete or unavailable.\n"); |
08984293 LP |
1004 | |
1005 | warn_cutoff = false; | |
1006 | } | |
1007 | ||
085d7120 | 1008 | if (!(flags & OUTPUT_FOLLOW)) |
86aa7ba4 LP |
1009 | break; |
1010 | ||
e02d1cf7 | 1011 | r = sd_journal_wait(j, (usec_t) -1); |
df50185b LP |
1012 | if (r < 0) |
1013 | goto finish; | |
1014 | ||
86aa7ba4 LP |
1015 | } |
1016 | ||
1a6c43e9 MT |
1017 | finish: |
1018 | return r; | |
1019 | } | |
1020 | ||
886a64fe | 1021 | int add_matches_for_unit(sd_journal *j, const char *unit) { |
1a6c43e9 | 1022 | int r; |
2d0b2e87 | 1023 | char *m1, *m2, *m3, *m4; |
1a6c43e9 | 1024 | |
886a64fe | 1025 | assert(j); |
1a6c43e9 MT |
1026 | assert(unit); |
1027 | ||
2d0b2e87 ZJS |
1028 | m1 = strappenda("_SYSTEMD_UNIT=", unit); |
1029 | m2 = strappenda("COREDUMP_UNIT=", unit); | |
1030 | m3 = strappenda("UNIT=", unit); | |
1031 | m4 = strappenda("OBJECT_SYSTEMD_UNIT=", unit); | |
1a6c43e9 | 1032 | |
886a64fe ZJS |
1033 | (void)( |
1034 | /* Look for messages from the service itself */ | |
1035 | (r = sd_journal_add_match(j, m1, 0)) || | |
1036 | ||
1037 | /* Look for coredumps of the service */ | |
1038 | (r = sd_journal_add_disjunction(j)) || | |
fdcd37df ZJS |
1039 | (r = sd_journal_add_match(j, "MESSAGE_ID=fc2e22bc6ee647b6b90729ab34a250b1", 0)) || |
1040 | (r = sd_journal_add_match(j, "_UID=0", 0)) || | |
886a64fe ZJS |
1041 | (r = sd_journal_add_match(j, m2, 0)) || |
1042 | ||
1043 | /* Look for messages from PID 1 about this service */ | |
1044 | (r = sd_journal_add_disjunction(j)) || | |
1045 | (r = sd_journal_add_match(j, "_PID=1", 0)) || | |
2d0b2e87 ZJS |
1046 | (r = sd_journal_add_match(j, m3, 0)) || |
1047 | ||
1048 | /* Look for messages from authorized daemons about this service */ | |
1049 | (r = sd_journal_add_disjunction(j)) || | |
1050 | (r = sd_journal_add_match(j, "_UID=0", 0)) || | |
1051 | (r = sd_journal_add_match(j, m4, 0)) | |
886a64fe | 1052 | ); |
2d0b2e87 | 1053 | |
69ae3ee0 ZJS |
1054 | if (r == 0 && endswith(unit, ".slice")) { |
1055 | char *m5 = strappend("_SYSTEMD_SLICE=", unit); | |
1056 | ||
1057 | /* Show all messages belonging to a slice */ | |
1058 | (void)( | |
1059 | (r = sd_journal_add_disjunction(j)) || | |
1060 | (r = sd_journal_add_match(j, m5, 0)) | |
1061 | ); | |
1062 | } | |
1063 | ||
886a64fe ZJS |
1064 | return r; |
1065 | } | |
1a6c43e9 | 1066 | |
886a64fe ZJS |
1067 | int add_matches_for_user_unit(sd_journal *j, const char *unit, uid_t uid) { |
1068 | int r; | |
2d0b2e87 ZJS |
1069 | char *m1, *m2, *m3, *m4; |
1070 | char muid[sizeof("_UID=") + DECIMAL_STR_MAX(uid_t)]; | |
1a6c43e9 | 1071 | |
886a64fe ZJS |
1072 | assert(j); |
1073 | assert(unit); | |
1a6c43e9 | 1074 | |
2d0b2e87 ZJS |
1075 | m1 = strappenda("_SYSTEMD_USER_UNIT=", unit); |
1076 | m2 = strappenda("USER_UNIT=", unit); | |
1077 | m3 = strappenda("COREDUMP_USER_UNIT=", unit); | |
1078 | m4 = strappenda("OBJECT_SYSTEMD_USER_UNIT=", unit); | |
1079 | sprintf(muid, "_UID=%lu", (unsigned long) uid); | |
1a6c43e9 | 1080 | |
886a64fe ZJS |
1081 | (void) ( |
1082 | /* Look for messages from the user service itself */ | |
1083 | (r = sd_journal_add_match(j, m1, 0)) || | |
2d0b2e87 | 1084 | (r = sd_journal_add_match(j, muid, 0)) || |
886a64fe ZJS |
1085 | |
1086 | /* Look for messages from systemd about this service */ | |
1087 | (r = sd_journal_add_disjunction(j)) || | |
1088 | (r = sd_journal_add_match(j, m2, 0)) || | |
2d0b2e87 | 1089 | (r = sd_journal_add_match(j, muid, 0)) || |
886a64fe ZJS |
1090 | |
1091 | /* Look for coredumps of the service */ | |
1092 | (r = sd_journal_add_disjunction(j)) || | |
1093 | (r = sd_journal_add_match(j, m3, 0)) || | |
2d0b2e87 ZJS |
1094 | (r = sd_journal_add_match(j, muid, 0)) || |
1095 | (r = sd_journal_add_match(j, "_UID=0", 0)) || | |
1096 | ||
1097 | /* Look for messages from authorized daemons about this service */ | |
1098 | (r = sd_journal_add_disjunction(j)) || | |
fdcd37df | 1099 | (r = sd_journal_add_match(j, m4, 0)) || |
2d0b2e87 | 1100 | (r = sd_journal_add_match(j, muid, 0)) || |
fdcd37df | 1101 | (r = sd_journal_add_match(j, "_UID=0", 0)) |
886a64fe | 1102 | ); |
69ae3ee0 ZJS |
1103 | |
1104 | if (r == 0 && endswith(unit, ".slice")) { | |
1105 | char *m5 = strappend("_SYSTEMD_SLICE=", unit); | |
1106 | ||
1107 | /* Show all messages belonging to a slice */ | |
1108 | (void)( | |
1109 | (r = sd_journal_add_disjunction(j)) || | |
1110 | (r = sd_journal_add_match(j, m5, 0)) || | |
1111 | (r = sd_journal_add_match(j, muid, 0)) | |
1112 | ); | |
1113 | } | |
1114 | ||
1a6c43e9 MT |
1115 | return r; |
1116 | } | |
1117 | ||
b6741478 | 1118 | static int get_boot_id_for_machine(const char *machine, sd_id128_t *boot_id) { |
e04b0cdb | 1119 | _cleanup_close_pipe_ int pair[2] = { -1, -1 }; |
a4475f57 | 1120 | _cleanup_close_ int pidnsfd = -1, mntnsfd = -1, rootfd = -1; |
b6741478 LP |
1121 | pid_t pid, child; |
1122 | siginfo_t si; | |
1123 | char buf[37]; | |
1124 | ssize_t k; | |
1125 | int r; | |
1126 | ||
1127 | assert(machine); | |
1128 | assert(boot_id); | |
1129 | ||
1130 | if (!filename_is_safe(machine)) | |
1131 | return -EINVAL; | |
1132 | ||
e04b0cdb | 1133 | r = container_get_leader(machine, &pid); |
b6741478 LP |
1134 | if (r < 0) |
1135 | return r; | |
e04b0cdb | 1136 | |
a4475f57 | 1137 | r = namespace_open(pid, &pidnsfd, &mntnsfd, &rootfd); |
b6741478 LP |
1138 | if (r < 0) |
1139 | return r; | |
1140 | ||
e04b0cdb | 1141 | if (socketpair(AF_UNIX, SOCK_DGRAM, 0, pair) < 0) |
b6741478 LP |
1142 | return -errno; |
1143 | ||
1144 | child = fork(); | |
1145 | if (child < 0) | |
1146 | return -errno; | |
1147 | ||
1148 | if (child == 0) { | |
1149 | int fd; | |
1150 | ||
e04b0cdb LP |
1151 | close_nointr_nofail(pair[0]); |
1152 | pair[0] = -1; | |
b6741478 | 1153 | |
a4475f57 | 1154 | r = namespace_enter(pidnsfd, mntnsfd, rootfd); |
b6741478 LP |
1155 | if (r < 0) |
1156 | _exit(EXIT_FAILURE); | |
1157 | ||
1158 | fd = open("/proc/sys/kernel/random/boot_id", O_RDONLY|O_CLOEXEC|O_NOCTTY); | |
1159 | if (fd < 0) | |
1160 | _exit(EXIT_FAILURE); | |
1161 | ||
1162 | k = loop_read(fd, buf, 36, false); | |
1163 | close_nointr_nofail(fd); | |
1164 | if (k != 36) | |
1165 | _exit(EXIT_FAILURE); | |
1166 | ||
e04b0cdb | 1167 | k = send(pair[1], buf, 36, MSG_NOSIGNAL); |
b6741478 LP |
1168 | if (k != 36) |
1169 | _exit(EXIT_FAILURE); | |
1170 | ||
1171 | _exit(EXIT_SUCCESS); | |
1172 | } | |
1173 | ||
e04b0cdb LP |
1174 | close_nointr_nofail(pair[1]); |
1175 | pair[1] = -1; | |
b6741478 | 1176 | |
b6741478 LP |
1177 | r = wait_for_terminate(child, &si); |
1178 | if (r < 0 || si.si_code != CLD_EXITED || si.si_status != EXIT_SUCCESS) | |
1179 | return r < 0 ? r : -EIO; | |
1180 | ||
fbadf045 LP |
1181 | k = recv(pair[0], buf, 36, 0); |
1182 | if (k != 36) | |
1183 | return -EIO; | |
1184 | ||
b6741478 LP |
1185 | buf[36] = 0; |
1186 | r = sd_id128_from_string(buf, boot_id); | |
1187 | if (r < 0) | |
1188 | return r; | |
1189 | ||
1190 | return 0; | |
1191 | } | |
1192 | ||
1193 | int add_match_this_boot(sd_journal *j, const char *machine) { | |
5ec76417 ZJS |
1194 | char match[9+32+1] = "_BOOT_ID="; |
1195 | sd_id128_t boot_id; | |
1196 | int r; | |
1197 | ||
1198 | assert(j); | |
1199 | ||
b6741478 LP |
1200 | if (machine) { |
1201 | r = get_boot_id_for_machine(machine, &boot_id); | |
1202 | if (r < 0) { | |
1203 | log_error("Failed to get boot id of container %s: %s", machine, strerror(-r)); | |
1204 | return r; | |
1205 | } | |
1206 | } else { | |
1207 | r = sd_id128_get_boot(&boot_id); | |
1208 | if (r < 0) { | |
1209 | log_error("Failed to get boot id: %s", strerror(-r)); | |
1210 | return r; | |
1211 | } | |
5ec76417 ZJS |
1212 | } |
1213 | ||
1214 | sd_id128_to_string(boot_id, match + 9); | |
1215 | r = sd_journal_add_match(j, match, strlen(match)); | |
1216 | if (r < 0) { | |
1217 | log_error("Failed to add match: %s", strerror(-r)); | |
1218 | return r; | |
1219 | } | |
1220 | ||
1221 | r = sd_journal_add_conjunction(j); | |
1222 | if (r < 0) | |
1223 | return r; | |
1224 | ||
1225 | return 0; | |
1226 | } | |
1227 | ||
886a64fe | 1228 | int show_journal_by_unit( |
1a6c43e9 MT |
1229 | FILE *f, |
1230 | const char *unit, | |
1231 | OutputMode mode, | |
1232 | unsigned n_columns, | |
1233 | usec_t not_before, | |
1234 | unsigned how_many, | |
1235 | uid_t uid, | |
886a64fe | 1236 | OutputFlags flags, |
94e0bd7d ZJS |
1237 | bool system, |
1238 | bool *ellipsized) { | |
1a6c43e9 | 1239 | |
7fd1b19b | 1240 | _cleanup_journal_close_ sd_journal*j = NULL; |
1a6c43e9 | 1241 | int r; |
a688baa8 | 1242 | int jflags = SD_JOURNAL_LOCAL_ONLY | system * SD_JOURNAL_SYSTEM; |
1a6c43e9 MT |
1243 | |
1244 | assert(mode >= 0); | |
1245 | assert(mode < _OUTPUT_MODE_MAX); | |
1246 | assert(unit); | |
1247 | ||
1a6c43e9 MT |
1248 | if (how_many <= 0) |
1249 | return 0; | |
1250 | ||
886a64fe | 1251 | r = sd_journal_open(&j, jflags); |
f9045468 | 1252 | if (r < 0) |
763c7aa2 | 1253 | return r; |
f9045468 | 1254 | |
b6741478 | 1255 | r = add_match_this_boot(j, NULL); |
5ec76417 ZJS |
1256 | if (r < 0) |
1257 | return r; | |
1258 | ||
886a64fe ZJS |
1259 | if (system) |
1260 | r = add_matches_for_unit(j, unit); | |
1261 | else | |
1262 | r = add_matches_for_user_unit(j, unit, uid); | |
1a6c43e9 | 1263 | if (r < 0) |
763c7aa2 | 1264 | return r; |
1a6c43e9 | 1265 | |
4ad16808 ZJS |
1266 | if (_unlikely_(log_get_max_level() >= LOG_PRI(LOG_DEBUG))) { |
1267 | _cleanup_free_ char *filter; | |
1268 | ||
1269 | filter = journal_make_match_string(j); | |
1270 | log_debug("Journal filter: %s", filter); | |
1271 | } | |
5ec76417 | 1272 | |
94e0bd7d | 1273 | return show_journal(f, j, mode, n_columns, not_before, how_many, flags, ellipsized); |
86aa7ba4 | 1274 | } |
df50185b LP |
1275 | |
1276 | static const char *const output_mode_table[_OUTPUT_MODE_MAX] = { | |
1277 | [OUTPUT_SHORT] = "short", | |
44bc6e1f | 1278 | [OUTPUT_SHORT_ISO] = "short-iso", |
f02d8367 ZJS |
1279 | [OUTPUT_SHORT_PRECISE] = "short-precise", |
1280 | [OUTPUT_SHORT_MONOTONIC] = "short-monotonic", | |
df50185b LP |
1281 | [OUTPUT_VERBOSE] = "verbose", |
1282 | [OUTPUT_EXPORT] = "export", | |
d3f2bdbf | 1283 | [OUTPUT_JSON] = "json", |
a6e87e90 | 1284 | [OUTPUT_JSON_PRETTY] = "json-pretty", |
48383c25 | 1285 | [OUTPUT_JSON_SSE] = "json-sse", |
d3f2bdbf | 1286 | [OUTPUT_CAT] = "cat" |
df50185b LP |
1287 | }; |
1288 | ||
1289 | DEFINE_STRING_TABLE_LOOKUP(output_mode, OutputMode); |