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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 | ||
47d80904 UU |
127 | /* A special case: make sure that we print a newline when |
128 | the message is empty. */ | |
129 | if (message_len == 0) | |
130 | fputs("\n", f); | |
131 | ||
a6f0104a ZJS |
132 | for (pos = message; |
133 | pos < message + message_len; | |
134 | pos = end + 1, line++) { | |
135 | bool continuation = line > 0; | |
136 | bool tail_line; | |
31f7bf19 ZJS |
137 | int len; |
138 | for (end = pos; end < message + message_len && *end != '\n'; end++) | |
139 | ; | |
140 | len = end - pos; | |
141 | assert(len >= 0); | |
142 | ||
2526d626 | 143 | /* We need to figure out when we are showing not-last line, *and* |
a6f0104a ZJS |
144 | * will skip subsequent lines. In that case, we will put the dots |
145 | * at the end of the line, instead of putting dots in the middle | |
146 | * or not at all. | |
147 | */ | |
148 | tail_line = | |
149 | line + 1 == PRINT_LINE_THRESHOLD || | |
2526d626 | 150 | end + 1 >= message + PRINT_CHAR_THRESHOLD; |
a6f0104a ZJS |
151 | |
152 | if (flags & (OUTPUT_FULL_WIDTH | OUTPUT_SHOW_ALL) || | |
153 | (prefix + len + 1 < n_columns && !tail_line)) { | |
31f7bf19 ZJS |
154 | fprintf(f, "%*s%s%.*s%s\n", |
155 | continuation * prefix, "", | |
156 | color_on, len, pos, color_off); | |
a6f0104a ZJS |
157 | continue; |
158 | } | |
31f7bf19 | 159 | |
a6f0104a ZJS |
160 | /* Beyond this point, ellipsization will happen. */ |
161 | ellipsized = true; | |
31f7bf19 | 162 | |
a6f0104a ZJS |
163 | if (prefix < n_columns && n_columns - prefix >= 3) { |
164 | if (n_columns - prefix > (unsigned) len + 3) | |
165 | fprintf(f, "%*s%s%.*s...%s\n", | |
b4b02cbe ZJS |
166 | continuation * prefix, "", |
167 | color_on, len, pos, color_off); | |
a6f0104a ZJS |
168 | else { |
169 | _cleanup_free_ char *e; | |
170 | ||
171 | e = ellipsize_mem(pos, len, n_columns - prefix, | |
172 | tail_line ? 100 : 90); | |
173 | if (!e) | |
174 | fprintf(f, "%*s%s%.*s%s\n", | |
175 | continuation * prefix, "", | |
176 | color_on, len, pos, color_off); | |
177 | else | |
178 | fprintf(f, "%*s%s%s%s\n", | |
179 | continuation * prefix, "", | |
180 | color_on, e, color_off); | |
181 | } | |
182 | } else | |
31f7bf19 ZJS |
183 | fputs("...\n", f); |
184 | ||
a6f0104a ZJS |
185 | if (tail_line) |
186 | break; | |
31f7bf19 | 187 | } |
94e0bd7d ZJS |
188 | |
189 | return ellipsized; | |
31f7bf19 ZJS |
190 | } |
191 | ||
08ace05b LP |
192 | static int output_short( |
193 | FILE *f, | |
194 | sd_journal *j, | |
195 | OutputMode mode, | |
196 | unsigned n_columns, | |
197 | OutputFlags flags) { | |
198 | ||
86aa7ba4 | 199 | int r; |
86aa7ba4 LP |
200 | const void *data; |
201 | size_t length; | |
202 | size_t n = 0; | |
08ace05b | 203 | _cleanup_free_ char *hostname = NULL, *identifier = NULL, *comm = NULL, *pid = NULL, *fake_pid = NULL, *message = NULL, *realtime = NULL, *monotonic = NULL, *priority = NULL; |
49826187 LP |
204 | 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; |
205 | int p = LOG_INFO; | |
94e0bd7d | 206 | bool ellipsized = false; |
86aa7ba4 | 207 | |
08ace05b | 208 | assert(f); |
86aa7ba4 LP |
209 | assert(j); |
210 | ||
a6f0104a | 211 | /* Set the threshold to one bigger than the actual print |
69ab8088 | 212 | * threshold, so that if the line is actually longer than what |
a6f0104a ZJS |
213 | * we're willing to print, ellipsization will occur. This way |
214 | * we won't output a misleading line without any indication of | |
215 | * truncation. | |
216 | */ | |
217 | sd_journal_set_data_threshold(j, flags & (OUTPUT_SHOW_ALL|OUTPUT_FULL_WIDTH) ? 0 : PRINT_CHAR_THRESHOLD + 1); | |
93b73b06 | 218 | |
a72b6353 | 219 | JOURNAL_FOREACH_DATA_RETVAL(j, data, length, r) { |
55d7bfc1 | 220 | |
49826187 LP |
221 | r = parse_field(data, length, "PRIORITY=", &priority, &priority_len); |
222 | if (r < 0) | |
08ace05b | 223 | return r; |
49826187 LP |
224 | else if (r > 0) |
225 | continue; | |
226 | ||
55d7bfc1 LP |
227 | r = parse_field(data, length, "_HOSTNAME=", &hostname, &hostname_len); |
228 | if (r < 0) | |
08ace05b | 229 | return r; |
55d7bfc1 LP |
230 | else if (r > 0) |
231 | continue; | |
232 | ||
4cd9a9d9 | 233 | r = parse_field(data, length, "SYSLOG_IDENTIFIER=", &identifier, &identifier_len); |
55d7bfc1 | 234 | if (r < 0) |
08ace05b | 235 | return r; |
55d7bfc1 LP |
236 | else if (r > 0) |
237 | continue; | |
238 | ||
239 | r = parse_field(data, length, "_COMM=", &comm, &comm_len); | |
240 | if (r < 0) | |
08ace05b | 241 | return r; |
55d7bfc1 LP |
242 | else if (r > 0) |
243 | continue; | |
244 | ||
245 | r = parse_field(data, length, "_PID=", &pid, &pid_len); | |
246 | if (r < 0) | |
08ace05b | 247 | return r; |
55d7bfc1 LP |
248 | else if (r > 0) |
249 | continue; | |
250 | ||
6c1e6b98 LP |
251 | r = parse_field(data, length, "SYSLOG_PID=", &fake_pid, &fake_pid_len); |
252 | if (r < 0) | |
08ace05b | 253 | return r; |
6c1e6b98 LP |
254 | else if (r > 0) |
255 | continue; | |
256 | ||
bf967366 LP |
257 | r = parse_field(data, length, "_SOURCE_REALTIME_TIMESTAMP=", &realtime, &realtime_len); |
258 | if (r < 0) | |
08ace05b | 259 | return r; |
bf967366 LP |
260 | else if (r > 0) |
261 | continue; | |
262 | ||
263 | r = parse_field(data, length, "_SOURCE_MONOTONIC_TIMESTAMP=", &monotonic, &monotonic_len); | |
264 | if (r < 0) | |
08ace05b | 265 | return r; |
bf967366 LP |
266 | else if (r > 0) |
267 | continue; | |
268 | ||
55d7bfc1 LP |
269 | r = parse_field(data, length, "MESSAGE=", &message, &message_len); |
270 | if (r < 0) | |
08ace05b | 271 | return r; |
55d7bfc1 LP |
272 | } |
273 | ||
a72b6353 ZJS |
274 | if (r < 0) |
275 | return r; | |
276 | ||
08ace05b LP |
277 | if (!message) |
278 | return 0; | |
55d7bfc1 | 279 | |
e8bc0ea2 LP |
280 | if (!(flags & OUTPUT_SHOW_ALL)) |
281 | strip_tab_ansi(&message, &message_len); | |
282 | ||
49826187 LP |
283 | if (priority_len == 1 && *priority >= '0' && *priority <= '7') |
284 | p = *priority - '0'; | |
285 | ||
a6e87e90 | 286 | if (mode == OUTPUT_SHORT_MONOTONIC) { |
67a12205 | 287 | uint64_t t; |
3ebcdf8c LP |
288 | sd_id128_t boot_id; |
289 | ||
bf967366 LP |
290 | r = -ENOENT; |
291 | ||
292 | if (monotonic) | |
293 | r = safe_atou64(monotonic, &t); | |
294 | ||
295 | if (r < 0) | |
3ebcdf8c | 296 | r = sd_journal_get_monotonic_usec(j, &t, &boot_id); |
86aa7ba4 | 297 | |
3ebcdf8c | 298 | if (r < 0) { |
a72b6353 | 299 | log_error("Failed to get monotonic timestamp: %s", strerror(-r)); |
08ace05b | 300 | return r; |
67a12205 LP |
301 | } |
302 | ||
08ace05b | 303 | fprintf(f, "[%5llu.%06llu]", |
de0671ee ZJS |
304 | t / USEC_PER_SEC, |
305 | t % USEC_PER_SEC); | |
3ebcdf8c LP |
306 | |
307 | n += 1 + 5 + 1 + 6 + 1; | |
308 | ||
67a12205 LP |
309 | } else { |
310 | char buf[64]; | |
bf967366 | 311 | uint64_t x; |
67a12205 LP |
312 | time_t t; |
313 | struct tm tm; | |
731a676c | 314 | |
bf967366 LP |
315 | r = -ENOENT; |
316 | ||
317 | if (realtime) | |
318 | r = safe_atou64(realtime, &x); | |
319 | ||
320 | if (r < 0) | |
321 | r = sd_journal_get_realtime_usec(j, &x); | |
67a12205 | 322 | |
67a12205 | 323 | if (r < 0) { |
a72b6353 | 324 | log_error("Failed to get realtime timestamp: %s", strerror(-r)); |
08ace05b | 325 | return r; |
67a12205 LP |
326 | } |
327 | ||
bf967366 | 328 | t = (time_t) (x / USEC_PER_SEC); |
f02d8367 ZJS |
329 | |
330 | switch(mode) { | |
331 | case OUTPUT_SHORT_ISO: | |
44bc6e1f | 332 | r = strftime(buf, sizeof(buf), "%Y-%m-%dT%H:%M:%S%z", localtime_r(&t, &tm)); |
f02d8367 ZJS |
333 | break; |
334 | case OUTPUT_SHORT_PRECISE: | |
335 | r = strftime(buf, sizeof(buf), "%b %d %H:%M:%S", localtime_r(&t, &tm)); | |
336 | if (r > 0) { | |
337 | snprintf(buf + strlen(buf), sizeof(buf) - strlen(buf), | |
338 | ".%06llu", x % USEC_PER_SEC); | |
339 | } | |
340 | break; | |
341 | default: | |
44bc6e1f | 342 | r = strftime(buf, sizeof(buf), "%b %d %H:%M:%S", localtime_r(&t, &tm)); |
f02d8367 | 343 | } |
44bc6e1f TT |
344 | |
345 | if (r <= 0) { | |
67a12205 | 346 | log_error("Failed to format time."); |
44bc6e1f | 347 | return -EINVAL; |
67a12205 LP |
348 | } |
349 | ||
08ace05b | 350 | fputs(buf, f); |
67a12205 LP |
351 | n += strlen(buf); |
352 | } | |
86aa7ba4 | 353 | |
08ace05b LP |
354 | if (hostname && shall_print(hostname, hostname_len, flags)) { |
355 | fprintf(f, " %.*s", (int) hostname_len, hostname); | |
55d7bfc1 LP |
356 | n += hostname_len + 1; |
357 | } | |
358 | ||
08ace05b LP |
359 | if (identifier && shall_print(identifier, identifier_len, flags)) { |
360 | fprintf(f, " %.*s", (int) identifier_len, identifier); | |
4cd9a9d9 | 361 | n += identifier_len + 1; |
08ace05b LP |
362 | } else if (comm && shall_print(comm, comm_len, flags)) { |
363 | fprintf(f, " %.*s", (int) comm_len, comm); | |
55d7bfc1 | 364 | n += comm_len + 1; |
b5936820 | 365 | } else |
08ace05b | 366 | fputc(' ', f); |
86aa7ba4 | 367 | |
08ace05b LP |
368 | if (pid && shall_print(pid, pid_len, flags)) { |
369 | fprintf(f, "[%.*s]", (int) pid_len, pid); | |
55d7bfc1 | 370 | n += pid_len + 2; |
08ace05b LP |
371 | } else if (fake_pid && shall_print(fake_pid, fake_pid_len, flags)) { |
372 | fprintf(f, "[%.*s]", (int) fake_pid_len, fake_pid); | |
6c1e6b98 | 373 | n += fake_pid_len + 2; |
86aa7ba4 LP |
374 | } |
375 | ||
31f7bf19 | 376 | if (!(flags & OUTPUT_SHOW_ALL) && !utf8_is_printable(message, message_len)) { |
e6acda19 | 377 | char bytes[FORMAT_BYTES_MAX]; |
08ace05b | 378 | fprintf(f, ": [%s blob data]\n", format_bytes(bytes, sizeof(bytes), message_len)); |
31f7bf19 ZJS |
379 | } else { |
380 | fputs(": ", f); | |
94e0bd7d ZJS |
381 | ellipsized |= |
382 | print_multiline(f, n + 2, n_columns, flags, p, message, message_len); | |
31f7bf19 | 383 | } |
55d7bfc1 | 384 | |
d4205751 LP |
385 | if (flags & OUTPUT_CATALOG) |
386 | print_catalog(f, j); | |
387 | ||
94e0bd7d | 388 | return ellipsized; |
86aa7ba4 LP |
389 | } |
390 | ||
08ace05b LP |
391 | static int output_verbose( |
392 | FILE *f, | |
393 | sd_journal *j, | |
394 | OutputMode mode, | |
395 | unsigned n_columns, | |
396 | OutputFlags flags) { | |
397 | ||
86aa7ba4 LP |
398 | const void *data; |
399 | size_t length; | |
7fd1b19b | 400 | _cleanup_free_ char *cursor = NULL; |
86aa7ba4 | 401 | uint64_t realtime; |
f02d8367 | 402 | char ts[FORMAT_TIMESTAMP_MAX + 7]; |
86aa7ba4 LP |
403 | int r; |
404 | ||
08ace05b | 405 | assert(f); |
86aa7ba4 LP |
406 | assert(j); |
407 | ||
93b73b06 LP |
408 | sd_journal_set_data_threshold(j, 0); |
409 | ||
cf40f0be ZJS |
410 | r = sd_journal_get_data(j, "_SOURCE_REALTIME_TIMESTAMP", &data, &length); |
411 | if (r == -ENOENT) | |
412 | log_debug("Source realtime timestamp not found"); | |
413 | else if (r < 0) { | |
a72b6353 | 414 | log_full(r == -EADDRNOTAVAIL ? LOG_DEBUG : LOG_ERR, |
cf40f0be | 415 | "Failed to get source realtime timestamp: %s", strerror(-r)); |
86aa7ba4 | 416 | return r; |
cf40f0be ZJS |
417 | } else { |
418 | _cleanup_free_ char *value = NULL; | |
419 | size_t size; | |
420 | ||
421 | r = parse_field(data, length, "_SOURCE_REALTIME_TIMESTAMP=", &value, &size); | |
422 | if (r < 0) | |
423 | log_debug("_SOURCE_REALTIME_TIMESTAMP invalid: %s", strerror(-r)); | |
424 | else { | |
425 | r = safe_atou64(value, &realtime); | |
426 | if (r < 0) | |
427 | log_debug("Failed to parse realtime timestamp: %s", | |
428 | strerror(-r)); | |
429 | } | |
430 | } | |
431 | ||
432 | if (r < 0) { | |
433 | r = sd_journal_get_realtime_usec(j, &realtime); | |
434 | if (r < 0) { | |
435 | log_full(r == -EADDRNOTAVAIL ? LOG_DEBUG : LOG_ERR, | |
436 | "Failed to get realtime timestamp: %s", strerror(-r)); | |
437 | return r; | |
438 | } | |
86aa7ba4 LP |
439 | } |
440 | ||
441 | r = sd_journal_get_cursor(j, &cursor); | |
442 | if (r < 0) { | |
443 | log_error("Failed to get cursor: %s", strerror(-r)); | |
444 | return r; | |
445 | } | |
446 | ||
08ace05b | 447 | fprintf(f, "%s [%s]\n", |
f02d8367 | 448 | format_timestamp_us(ts, sizeof(ts), realtime), |
08ace05b | 449 | cursor); |
86aa7ba4 | 450 | |
a72b6353 | 451 | JOURNAL_FOREACH_DATA_RETVAL(j, data, length, r) { |
31f7bf19 ZJS |
452 | const char *c; |
453 | int fieldlen; | |
7ac4fa7e ZJS |
454 | const char *on = "", *off = ""; |
455 | ||
31f7bf19 ZJS |
456 | c = memchr(data, '=', length); |
457 | if (!c) { | |
458 | log_error("Invalid field."); | |
459 | return -EINVAL; | |
460 | } | |
461 | fieldlen = c - (const char*) data; | |
86aa7ba4 | 462 | |
7ac4fa7e ZJS |
463 | if (flags & OUTPUT_COLOR && startswith(data, "MESSAGE=")) { |
464 | on = ANSI_HIGHLIGHT_ON; | |
465 | off = ANSI_HIGHLIGHT_OFF; | |
466 | } | |
467 | ||
468 | if (flags & OUTPUT_SHOW_ALL || | |
a6f0104a ZJS |
469 | (((length < PRINT_CHAR_THRESHOLD) || flags & OUTPUT_FULL_WIDTH) |
470 | && utf8_is_printable(data, length))) { | |
7ac4fa7e | 471 | fprintf(f, " %s%.*s=", on, fieldlen, (const char*)data); |
31f7bf19 | 472 | print_multiline(f, 4 + fieldlen + 1, 0, OUTPUT_FULL_WIDTH, 0, c + 1, length - fieldlen - 1); |
7ac4fa7e | 473 | fputs(off, f); |
31f7bf19 ZJS |
474 | } else { |
475 | char bytes[FORMAT_BYTES_MAX]; | |
86aa7ba4 | 476 | |
7ac4fa7e ZJS |
477 | fprintf(f, " %s%.*s=[%s blob data]%s\n", |
478 | on, | |
31f7bf19 ZJS |
479 | (int) (c - (const char*) data), |
480 | (const char*) data, | |
7ac4fa7e ZJS |
481 | format_bytes(bytes, sizeof(bytes), length - (c - (const char *) data) - 1), |
482 | off); | |
31f7bf19 | 483 | } |
86aa7ba4 LP |
484 | } |
485 | ||
a72b6353 ZJS |
486 | if (r < 0) |
487 | return r; | |
488 | ||
d4205751 LP |
489 | if (flags & OUTPUT_CATALOG) |
490 | print_catalog(f, j); | |
491 | ||
86aa7ba4 LP |
492 | return 0; |
493 | } | |
494 | ||
08ace05b LP |
495 | static int output_export( |
496 | FILE *f, | |
497 | sd_journal *j, | |
498 | OutputMode mode, | |
499 | unsigned n_columns, | |
500 | OutputFlags flags) { | |
501 | ||
86aa7ba4 LP |
502 | sd_id128_t boot_id; |
503 | char sid[33]; | |
504 | int r; | |
505 | usec_t realtime, monotonic; | |
7fd1b19b | 506 | _cleanup_free_ char *cursor = NULL; |
86aa7ba4 LP |
507 | const void *data; |
508 | size_t length; | |
509 | ||
510 | assert(j); | |
511 | ||
93b73b06 LP |
512 | sd_journal_set_data_threshold(j, 0); |
513 | ||
86aa7ba4 LP |
514 | r = sd_journal_get_realtime_usec(j, &realtime); |
515 | if (r < 0) { | |
516 | log_error("Failed to get realtime timestamp: %s", strerror(-r)); | |
517 | return r; | |
518 | } | |
519 | ||
520 | r = sd_journal_get_monotonic_usec(j, &monotonic, &boot_id); | |
521 | if (r < 0) { | |
522 | log_error("Failed to get monotonic timestamp: %s", strerror(-r)); | |
523 | return r; | |
524 | } | |
525 | ||
526 | r = sd_journal_get_cursor(j, &cursor); | |
527 | if (r < 0) { | |
528 | log_error("Failed to get cursor: %s", strerror(-r)); | |
529 | return r; | |
530 | } | |
531 | ||
08ace05b LP |
532 | fprintf(f, |
533 | "__CURSOR=%s\n" | |
de0671ee ZJS |
534 | "__REALTIME_TIMESTAMP="USEC_FMT"\n" |
535 | "__MONOTONIC_TIMESTAMP="USEC_FMT"\n" | |
08ace05b LP |
536 | "_BOOT_ID=%s\n", |
537 | cursor, | |
de0671ee ZJS |
538 | realtime, |
539 | monotonic, | |
08ace05b | 540 | sd_id128_to_string(boot_id, sid)); |
86aa7ba4 | 541 | |
a72b6353 | 542 | JOURNAL_FOREACH_DATA_RETVAL(j, data, length, r) { |
86aa7ba4 | 543 | |
112301ae LP |
544 | /* We already printed the boot id, from the data in |
545 | * the header, hence let's suppress it here */ | |
546 | if (length >= 9 && | |
2a0e0692 | 547 | startswith(data, "_BOOT_ID=")) |
112301ae LP |
548 | continue; |
549 | ||
0ade5ffe ZJS |
550 | if (utf8_is_printable_newline(data, length, false)) |
551 | fwrite(data, length, 1, f); | |
552 | else { | |
86aa7ba4 LP |
553 | const char *c; |
554 | uint64_t le64; | |
555 | ||
556 | c = memchr(data, '=', length); | |
557 | if (!c) { | |
558 | log_error("Invalid field."); | |
559 | return -EINVAL; | |
560 | } | |
561 | ||
08ace05b LP |
562 | fwrite(data, c - (const char*) data, 1, f); |
563 | fputc('\n', f); | |
86aa7ba4 | 564 | le64 = htole64(length - (c - (const char*) data) - 1); |
08ace05b LP |
565 | fwrite(&le64, sizeof(le64), 1, f); |
566 | fwrite(c + 1, length - (c - (const char*) data) - 1, 1, f); | |
0ade5ffe | 567 | } |
86aa7ba4 | 568 | |
08ace05b | 569 | fputc('\n', f); |
86aa7ba4 LP |
570 | } |
571 | ||
a72b6353 ZJS |
572 | if (r < 0) |
573 | return r; | |
574 | ||
08ace05b | 575 | fputc('\n', f); |
86aa7ba4 LP |
576 | |
577 | return 0; | |
578 | } | |
579 | ||
240a5fe8 | 580 | void json_escape( |
08ace05b LP |
581 | FILE *f, |
582 | const char* p, | |
583 | size_t l, | |
584 | OutputFlags flags) { | |
585 | ||
586 | assert(f); | |
587 | assert(p); | |
588 | ||
93b73b06 | 589 | if (!(flags & OUTPUT_SHOW_ALL) && l >= JSON_THRESHOLD) |
08ace05b LP |
590 | |
591 | fputs("null", f); | |
592 | ||
31f7bf19 | 593 | else if (!utf8_is_printable(p, l)) { |
86aa7ba4 LP |
594 | bool not_first = false; |
595 | ||
08ace05b | 596 | fputs("[ ", f); |
86aa7ba4 LP |
597 | |
598 | while (l > 0) { | |
599 | if (not_first) | |
08ace05b | 600 | fprintf(f, ", %u", (uint8_t) *p); |
86aa7ba4 LP |
601 | else { |
602 | not_first = true; | |
08ace05b | 603 | fprintf(f, "%u", (uint8_t) *p); |
86aa7ba4 LP |
604 | } |
605 | ||
606 | p++; | |
607 | l--; | |
608 | } | |
609 | ||
08ace05b | 610 | fputs(" ]", f); |
86aa7ba4 | 611 | } else { |
08ace05b | 612 | fputc('\"', f); |
86aa7ba4 LP |
613 | |
614 | while (l > 0) { | |
615 | if (*p == '"' || *p == '\\') { | |
08ace05b LP |
616 | fputc('\\', f); |
617 | fputc(*p, f); | |
31f7bf19 ZJS |
618 | } else if (*p == '\n') |
619 | fputs("\\n", f); | |
620 | else if (*p < ' ') | |
08ace05b LP |
621 | fprintf(f, "\\u%04x", *p); |
622 | else | |
623 | fputc(*p, f); | |
86aa7ba4 LP |
624 | |
625 | p++; | |
626 | l--; | |
627 | } | |
628 | ||
08ace05b | 629 | fputc('\"', f); |
86aa7ba4 LP |
630 | } |
631 | } | |
632 | ||
08ace05b LP |
633 | static int output_json( |
634 | FILE *f, | |
635 | sd_journal *j, | |
636 | OutputMode mode, | |
637 | unsigned n_columns, | |
638 | OutputFlags flags) { | |
639 | ||
86aa7ba4 | 640 | uint64_t realtime, monotonic; |
7fd1b19b | 641 | _cleanup_free_ char *cursor = NULL; |
86aa7ba4 LP |
642 | const void *data; |
643 | size_t length; | |
644 | sd_id128_t boot_id; | |
2e729834 | 645 | char sid[33], *k; |
86aa7ba4 | 646 | int r; |
d99ae53a LP |
647 | Hashmap *h = NULL; |
648 | bool done, separator; | |
86aa7ba4 LP |
649 | |
650 | assert(j); | |
651 | ||
93b73b06 LP |
652 | sd_journal_set_data_threshold(j, flags & OUTPUT_SHOW_ALL ? 0 : JSON_THRESHOLD); |
653 | ||
86aa7ba4 LP |
654 | r = sd_journal_get_realtime_usec(j, &realtime); |
655 | if (r < 0) { | |
656 | log_error("Failed to get realtime timestamp: %s", strerror(-r)); | |
657 | return r; | |
658 | } | |
659 | ||
660 | r = sd_journal_get_monotonic_usec(j, &monotonic, &boot_id); | |
661 | if (r < 0) { | |
662 | log_error("Failed to get monotonic timestamp: %s", strerror(-r)); | |
663 | return r; | |
664 | } | |
665 | ||
666 | r = sd_journal_get_cursor(j, &cursor); | |
667 | if (r < 0) { | |
668 | log_error("Failed to get cursor: %s", strerror(-r)); | |
669 | return r; | |
670 | } | |
671 | ||
a6e87e90 | 672 | if (mode == OUTPUT_JSON_PRETTY) |
08ace05b LP |
673 | fprintf(f, |
674 | "{\n" | |
675 | "\t\"__CURSOR\" : \"%s\",\n" | |
de0671ee ZJS |
676 | "\t\"__REALTIME_TIMESTAMP\" : \""USEC_FMT"\",\n" |
677 | "\t\"__MONOTONIC_TIMESTAMP\" : \""USEC_FMT"\",\n" | |
08ace05b LP |
678 | "\t\"_BOOT_ID\" : \"%s\"", |
679 | cursor, | |
de0671ee ZJS |
680 | realtime, |
681 | monotonic, | |
08ace05b | 682 | sd_id128_to_string(boot_id, sid)); |
48383c25 LP |
683 | else { |
684 | if (mode == OUTPUT_JSON_SSE) | |
685 | fputs("data: ", f); | |
686 | ||
08ace05b LP |
687 | fprintf(f, |
688 | "{ \"__CURSOR\" : \"%s\", " | |
de0671ee ZJS |
689 | "\"__REALTIME_TIMESTAMP\" : \""USEC_FMT"\", " |
690 | "\"__MONOTONIC_TIMESTAMP\" : \""USEC_FMT"\", " | |
08ace05b LP |
691 | "\"_BOOT_ID\" : \"%s\"", |
692 | cursor, | |
de0671ee ZJS |
693 | realtime, |
694 | monotonic, | |
08ace05b | 695 | sd_id128_to_string(boot_id, sid)); |
48383c25 | 696 | } |
86aa7ba4 | 697 | |
d99ae53a LP |
698 | h = hashmap_new(string_hash_func, string_compare_func); |
699 | if (!h) | |
700 | return -ENOMEM; | |
701 | ||
702 | /* First round, iterate through the entry and count how often each field appears */ | |
a72b6353 | 703 | JOURNAL_FOREACH_DATA_RETVAL(j, data, length, r) { |
d99ae53a LP |
704 | const char *eq; |
705 | char *n; | |
706 | unsigned u; | |
86aa7ba4 | 707 | |
112301ae LP |
708 | if (length >= 9 && |
709 | memcmp(data, "_BOOT_ID=", 9) == 0) | |
710 | continue; | |
711 | ||
d99ae53a LP |
712 | eq = memchr(data, '=', length); |
713 | if (!eq) | |
714 | continue; | |
86aa7ba4 | 715 | |
d99ae53a LP |
716 | n = strndup(data, eq - (const char*) data); |
717 | if (!n) { | |
718 | r = -ENOMEM; | |
719 | goto finish; | |
720 | } | |
a6e87e90 | 721 | |
d99ae53a LP |
722 | u = PTR_TO_UINT(hashmap_get(h, n)); |
723 | if (u == 0) { | |
724 | r = hashmap_put(h, n, UINT_TO_PTR(1)); | |
725 | if (r < 0) { | |
726 | free(n); | |
727 | goto finish; | |
728 | } | |
729 | } else { | |
730 | r = hashmap_update(h, n, UINT_TO_PTR(u + 1)); | |
731 | free(n); | |
732 | if (r < 0) | |
733 | goto finish; | |
734 | } | |
86aa7ba4 LP |
735 | } |
736 | ||
a72b6353 ZJS |
737 | if (r < 0) |
738 | return r; | |
739 | ||
d99ae53a LP |
740 | separator = true; |
741 | do { | |
742 | done = true; | |
743 | ||
744 | SD_JOURNAL_FOREACH_DATA(j, data, length) { | |
745 | const char *eq; | |
746 | char *kk, *n; | |
747 | size_t m; | |
748 | unsigned u; | |
749 | ||
750 | /* We already printed the boot id, from the data in | |
751 | * the header, hence let's suppress it here */ | |
752 | if (length >= 9 && | |
753 | memcmp(data, "_BOOT_ID=", 9) == 0) | |
754 | continue; | |
755 | ||
756 | eq = memchr(data, '=', length); | |
757 | if (!eq) | |
758 | continue; | |
759 | ||
760 | if (separator) { | |
761 | if (mode == OUTPUT_JSON_PRETTY) | |
762 | fputs(",\n\t", f); | |
763 | else | |
764 | fputs(", ", f); | |
765 | } | |
766 | ||
767 | m = eq - (const char*) data; | |
768 | ||
769 | n = strndup(data, m); | |
770 | if (!n) { | |
771 | r = -ENOMEM; | |
772 | goto finish; | |
773 | } | |
774 | ||
775 | u = PTR_TO_UINT(hashmap_get2(h, n, (void**) &kk)); | |
776 | if (u == 0) { | |
777 | /* We already printed this, let's jump to the next */ | |
778 | free(n); | |
779 | separator = false; | |
780 | ||
781 | continue; | |
782 | } else if (u == 1) { | |
783 | /* Field only appears once, output it directly */ | |
784 | ||
785 | json_escape(f, data, m, flags); | |
786 | fputs(" : ", f); | |
787 | ||
788 | json_escape(f, eq + 1, length - m - 1, flags); | |
789 | ||
790 | hashmap_remove(h, n); | |
791 | free(kk); | |
792 | free(n); | |
793 | ||
794 | separator = true; | |
795 | ||
796 | continue; | |
797 | ||
798 | } else { | |
799 | /* Field appears multiple times, output it as array */ | |
800 | json_escape(f, data, m, flags); | |
801 | fputs(" : [ ", f); | |
802 | json_escape(f, eq + 1, length - m - 1, flags); | |
803 | ||
804 | /* Iterate through the end of the list */ | |
805 | ||
806 | while (sd_journal_enumerate_data(j, &data, &length) > 0) { | |
807 | if (length < m + 1) | |
808 | continue; | |
809 | ||
810 | if (memcmp(data, n, m) != 0) | |
811 | continue; | |
812 | ||
813 | if (((const char*) data)[m] != '=') | |
814 | continue; | |
815 | ||
816 | fputs(", ", f); | |
817 | json_escape(f, (const char*) data + m + 1, length - m - 1, flags); | |
818 | } | |
819 | ||
820 | fputs(" ]", f); | |
821 | ||
822 | hashmap_remove(h, n); | |
823 | free(kk); | |
824 | free(n); | |
825 | ||
826 | /* Iterate data fields form the beginning */ | |
827 | done = false; | |
828 | separator = true; | |
829 | ||
830 | break; | |
831 | } | |
832 | } | |
833 | ||
834 | } while (!done); | |
835 | ||
a6e87e90 | 836 | if (mode == OUTPUT_JSON_PRETTY) |
08ace05b | 837 | fputs("\n}\n", f); |
48383c25 LP |
838 | else if (mode == OUTPUT_JSON_SSE) |
839 | fputs("}\n\n", f); | |
a6e87e90 | 840 | else |
08ace05b | 841 | fputs(" }\n", f); |
86aa7ba4 | 842 | |
d99ae53a LP |
843 | r = 0; |
844 | ||
845 | finish: | |
846 | while ((k = hashmap_steal_first_key(h))) | |
847 | free(k); | |
848 | ||
849 | hashmap_free(h); | |
850 | ||
851 | return r; | |
86aa7ba4 LP |
852 | } |
853 | ||
08ace05b LP |
854 | static int output_cat( |
855 | FILE *f, | |
856 | sd_journal *j, | |
857 | OutputMode mode, | |
858 | unsigned n_columns, | |
859 | OutputFlags flags) { | |
860 | ||
d3f2bdbf LP |
861 | const void *data; |
862 | size_t l; | |
863 | int r; | |
864 | ||
865 | assert(j); | |
08ace05b | 866 | assert(f); |
d3f2bdbf | 867 | |
93b73b06 LP |
868 | sd_journal_set_data_threshold(j, 0); |
869 | ||
d3f2bdbf LP |
870 | r = sd_journal_get_data(j, "MESSAGE", &data, &l); |
871 | if (r < 0) { | |
c198300f LP |
872 | /* An entry without MESSAGE=? */ |
873 | if (r == -ENOENT) | |
874 | return 0; | |
875 | ||
d3f2bdbf LP |
876 | log_error("Failed to get data: %s", strerror(-r)); |
877 | return r; | |
878 | } | |
879 | ||
880 | assert(l >= 8); | |
881 | ||
08ace05b LP |
882 | fwrite((const char*) data + 8, 1, l - 8, f); |
883 | fputc('\n', f); | |
d3f2bdbf LP |
884 | |
885 | return 0; | |
886 | } | |
887 | ||
08ace05b LP |
888 | static int (*output_funcs[_OUTPUT_MODE_MAX])( |
889 | FILE *f, | |
890 | sd_journal*j, | |
891 | OutputMode mode, | |
892 | unsigned n_columns, | |
893 | OutputFlags flags) = { | |
894 | ||
a6e87e90 | 895 | [OUTPUT_SHORT] = output_short, |
44bc6e1f | 896 | [OUTPUT_SHORT_ISO] = output_short, |
f02d8367 ZJS |
897 | [OUTPUT_SHORT_PRECISE] = output_short, |
898 | [OUTPUT_SHORT_MONOTONIC] = output_short, | |
86aa7ba4 LP |
899 | [OUTPUT_VERBOSE] = output_verbose, |
900 | [OUTPUT_EXPORT] = output_export, | |
d3f2bdbf | 901 | [OUTPUT_JSON] = output_json, |
a6e87e90 | 902 | [OUTPUT_JSON_PRETTY] = output_json, |
48383c25 | 903 | [OUTPUT_JSON_SSE] = output_json, |
d3f2bdbf | 904 | [OUTPUT_CAT] = output_cat |
86aa7ba4 LP |
905 | }; |
906 | ||
08ace05b LP |
907 | int output_journal( |
908 | FILE *f, | |
909 | sd_journal *j, | |
910 | OutputMode mode, | |
911 | unsigned n_columns, | |
94e0bd7d ZJS |
912 | OutputFlags flags, |
913 | bool *ellipsized) { | |
08ace05b | 914 | |
e268b81e | 915 | int ret; |
df50185b | 916 | assert(mode >= 0); |
86aa7ba4 LP |
917 | assert(mode < _OUTPUT_MODE_MAX); |
918 | ||
34a35ece LP |
919 | if (n_columns <= 0) |
920 | n_columns = columns(); | |
921 | ||
08ace05b | 922 | ret = output_funcs[mode](f, j, mode, n_columns, flags); |
e268b81e | 923 | fflush(stdout); |
94e0bd7d ZJS |
924 | |
925 | if (ellipsized && ret > 0) | |
926 | *ellipsized = true; | |
927 | ||
e268b81e | 928 | return ret; |
86aa7ba4 LP |
929 | } |
930 | ||
ea6c2dd1 LP |
931 | static int maybe_print_begin_newline(FILE *f, OutputFlags *flags) { |
932 | assert(f); | |
933 | assert(flags); | |
934 | ||
935 | if (!(*flags & OUTPUT_BEGIN_NEWLINE)) | |
936 | return 0; | |
937 | ||
938 | /* Print a beginning new line if that's request, but only once | |
939 | * on the first line we print. */ | |
940 | ||
941 | fputc('\n', f); | |
942 | *flags &= ~OUTPUT_BEGIN_NEWLINE; | |
943 | return 0; | |
944 | } | |
945 | ||
1a6c43e9 MT |
946 | static int show_journal(FILE *f, |
947 | sd_journal *j, | |
948 | OutputMode mode, | |
949 | unsigned n_columns, | |
950 | usec_t not_before, | |
951 | unsigned how_many, | |
94e0bd7d ZJS |
952 | OutputFlags flags, |
953 | bool *ellipsized) { | |
86aa7ba4 | 954 | |
86aa7ba4 | 955 | int r; |
df50185b LP |
956 | unsigned line = 0; |
957 | bool need_seek = false; | |
085d7120 | 958 | int warn_cutoff = flags & OUTPUT_WARN_CUTOFF; |
86aa7ba4 | 959 | |
1a6c43e9 | 960 | assert(j); |
df50185b LP |
961 | assert(mode >= 0); |
962 | assert(mode < _OUTPUT_MODE_MAX); | |
1946b0bd LP |
963 | |
964 | /* Seek to end */ | |
86aa7ba4 LP |
965 | r = sd_journal_seek_tail(j); |
966 | if (r < 0) | |
967 | goto finish; | |
968 | ||
df50185b LP |
969 | r = sd_journal_previous_skip(j, how_many); |
970 | if (r < 0) | |
971 | goto finish; | |
86aa7ba4 | 972 | |
df50185b LP |
973 | for (;;) { |
974 | for (;;) { | |
975 | usec_t usec; | |
976 | ||
977 | if (need_seek) { | |
978 | r = sd_journal_next(j); | |
979 | if (r < 0) | |
980 | goto finish; | |
981 | } | |
982 | ||
983 | if (r == 0) | |
984 | break; | |
86aa7ba4 | 985 | |
df50185b LP |
986 | need_seek = true; |
987 | ||
988 | if (not_before > 0) { | |
989 | r = sd_journal_get_monotonic_usec(j, &usec, NULL); | |
990 | ||
991 | /* -ESTALE is returned if the | |
992 | timestamp is not from this boot */ | |
993 | if (r == -ESTALE) | |
994 | continue; | |
995 | else if (r < 0) | |
996 | goto finish; | |
997 | ||
998 | if (usec < not_before) | |
999 | continue; | |
1000 | } | |
1001 | ||
1002 | line ++; | |
ea6c2dd1 | 1003 | maybe_print_begin_newline(f, &flags); |
df50185b | 1004 | |
94e0bd7d | 1005 | r = output_journal(f, j, mode, n_columns, flags, ellipsized); |
df50185b LP |
1006 | if (r < 0) |
1007 | goto finish; | |
1008 | } | |
1009 | ||
08984293 LP |
1010 | if (warn_cutoff && line < how_many && not_before > 0) { |
1011 | sd_id128_t boot_id; | |
1012 | usec_t cutoff; | |
1013 | ||
1014 | /* Check whether the cutoff line is too early */ | |
1015 | ||
1016 | r = sd_id128_get_boot(&boot_id); | |
1017 | if (r < 0) | |
1018 | goto finish; | |
1019 | ||
1020 | r = sd_journal_get_cutoff_monotonic_usec(j, boot_id, &cutoff, NULL); | |
1021 | if (r < 0) | |
1022 | goto finish; | |
1023 | ||
ea6c2dd1 LP |
1024 | if (r > 0 && not_before < cutoff) { |
1025 | maybe_print_begin_newline(f, &flags); | |
08ace05b | 1026 | fprintf(f, "Warning: Journal has been rotated since unit was started. Log output is incomplete or unavailable.\n"); |
ea6c2dd1 | 1027 | } |
08984293 LP |
1028 | |
1029 | warn_cutoff = false; | |
1030 | } | |
1031 | ||
085d7120 | 1032 | if (!(flags & OUTPUT_FOLLOW)) |
86aa7ba4 LP |
1033 | break; |
1034 | ||
e02d1cf7 | 1035 | r = sd_journal_wait(j, (usec_t) -1); |
df50185b LP |
1036 | if (r < 0) |
1037 | goto finish; | |
1038 | ||
86aa7ba4 LP |
1039 | } |
1040 | ||
1a6c43e9 MT |
1041 | finish: |
1042 | return r; | |
1043 | } | |
1044 | ||
886a64fe | 1045 | int add_matches_for_unit(sd_journal *j, const char *unit) { |
1a6c43e9 | 1046 | int r; |
2d0b2e87 | 1047 | char *m1, *m2, *m3, *m4; |
1a6c43e9 | 1048 | |
886a64fe | 1049 | assert(j); |
1a6c43e9 MT |
1050 | assert(unit); |
1051 | ||
2d0b2e87 ZJS |
1052 | m1 = strappenda("_SYSTEMD_UNIT=", unit); |
1053 | m2 = strappenda("COREDUMP_UNIT=", unit); | |
1054 | m3 = strappenda("UNIT=", unit); | |
1055 | m4 = strappenda("OBJECT_SYSTEMD_UNIT=", unit); | |
1a6c43e9 | 1056 | |
886a64fe ZJS |
1057 | (void)( |
1058 | /* Look for messages from the service itself */ | |
1059 | (r = sd_journal_add_match(j, m1, 0)) || | |
1060 | ||
1061 | /* Look for coredumps of the service */ | |
1062 | (r = sd_journal_add_disjunction(j)) || | |
fdcd37df ZJS |
1063 | (r = sd_journal_add_match(j, "MESSAGE_ID=fc2e22bc6ee647b6b90729ab34a250b1", 0)) || |
1064 | (r = sd_journal_add_match(j, "_UID=0", 0)) || | |
886a64fe ZJS |
1065 | (r = sd_journal_add_match(j, m2, 0)) || |
1066 | ||
1067 | /* Look for messages from PID 1 about this service */ | |
1068 | (r = sd_journal_add_disjunction(j)) || | |
1069 | (r = sd_journal_add_match(j, "_PID=1", 0)) || | |
2d0b2e87 ZJS |
1070 | (r = sd_journal_add_match(j, m3, 0)) || |
1071 | ||
1072 | /* Look for messages from authorized daemons about this service */ | |
1073 | (r = sd_journal_add_disjunction(j)) || | |
1074 | (r = sd_journal_add_match(j, "_UID=0", 0)) || | |
1075 | (r = sd_journal_add_match(j, m4, 0)) | |
886a64fe | 1076 | ); |
2d0b2e87 | 1077 | |
69ae3ee0 ZJS |
1078 | if (r == 0 && endswith(unit, ".slice")) { |
1079 | char *m5 = strappend("_SYSTEMD_SLICE=", unit); | |
1080 | ||
1081 | /* Show all messages belonging to a slice */ | |
1082 | (void)( | |
1083 | (r = sd_journal_add_disjunction(j)) || | |
1084 | (r = sd_journal_add_match(j, m5, 0)) | |
1085 | ); | |
1086 | } | |
1087 | ||
886a64fe ZJS |
1088 | return r; |
1089 | } | |
1a6c43e9 | 1090 | |
886a64fe ZJS |
1091 | int add_matches_for_user_unit(sd_journal *j, const char *unit, uid_t uid) { |
1092 | int r; | |
2d0b2e87 ZJS |
1093 | char *m1, *m2, *m3, *m4; |
1094 | char muid[sizeof("_UID=") + DECIMAL_STR_MAX(uid_t)]; | |
1a6c43e9 | 1095 | |
886a64fe ZJS |
1096 | assert(j); |
1097 | assert(unit); | |
1a6c43e9 | 1098 | |
2d0b2e87 ZJS |
1099 | m1 = strappenda("_SYSTEMD_USER_UNIT=", unit); |
1100 | m2 = strappenda("USER_UNIT=", unit); | |
1101 | m3 = strappenda("COREDUMP_USER_UNIT=", unit); | |
1102 | m4 = strappenda("OBJECT_SYSTEMD_USER_UNIT=", unit); | |
de0671ee | 1103 | sprintf(muid, "_UID="UID_FMT, uid); |
1a6c43e9 | 1104 | |
886a64fe ZJS |
1105 | (void) ( |
1106 | /* Look for messages from the user service itself */ | |
1107 | (r = sd_journal_add_match(j, m1, 0)) || | |
2d0b2e87 | 1108 | (r = sd_journal_add_match(j, muid, 0)) || |
886a64fe ZJS |
1109 | |
1110 | /* Look for messages from systemd about this service */ | |
1111 | (r = sd_journal_add_disjunction(j)) || | |
1112 | (r = sd_journal_add_match(j, m2, 0)) || | |
2d0b2e87 | 1113 | (r = sd_journal_add_match(j, muid, 0)) || |
886a64fe ZJS |
1114 | |
1115 | /* Look for coredumps of the service */ | |
1116 | (r = sd_journal_add_disjunction(j)) || | |
1117 | (r = sd_journal_add_match(j, m3, 0)) || | |
2d0b2e87 ZJS |
1118 | (r = sd_journal_add_match(j, muid, 0)) || |
1119 | (r = sd_journal_add_match(j, "_UID=0", 0)) || | |
1120 | ||
1121 | /* Look for messages from authorized daemons about this service */ | |
1122 | (r = sd_journal_add_disjunction(j)) || | |
fdcd37df | 1123 | (r = sd_journal_add_match(j, m4, 0)) || |
2d0b2e87 | 1124 | (r = sd_journal_add_match(j, muid, 0)) || |
fdcd37df | 1125 | (r = sd_journal_add_match(j, "_UID=0", 0)) |
886a64fe | 1126 | ); |
69ae3ee0 ZJS |
1127 | |
1128 | if (r == 0 && endswith(unit, ".slice")) { | |
1129 | char *m5 = strappend("_SYSTEMD_SLICE=", unit); | |
1130 | ||
1131 | /* Show all messages belonging to a slice */ | |
1132 | (void)( | |
1133 | (r = sd_journal_add_disjunction(j)) || | |
1134 | (r = sd_journal_add_match(j, m5, 0)) || | |
1135 | (r = sd_journal_add_match(j, muid, 0)) | |
1136 | ); | |
1137 | } | |
1138 | ||
1a6c43e9 MT |
1139 | return r; |
1140 | } | |
1141 | ||
b6741478 | 1142 | static int get_boot_id_for_machine(const char *machine, sd_id128_t *boot_id) { |
3d94f76c | 1143 | _cleanup_close_pair_ int pair[2] = { -1, -1 }; |
a4475f57 | 1144 | _cleanup_close_ int pidnsfd = -1, mntnsfd = -1, rootfd = -1; |
b6741478 LP |
1145 | pid_t pid, child; |
1146 | siginfo_t si; | |
1147 | char buf[37]; | |
1148 | ssize_t k; | |
1149 | int r; | |
1150 | ||
1151 | assert(machine); | |
1152 | assert(boot_id); | |
1153 | ||
1154 | if (!filename_is_safe(machine)) | |
1155 | return -EINVAL; | |
1156 | ||
e04b0cdb | 1157 | r = container_get_leader(machine, &pid); |
b6741478 LP |
1158 | if (r < 0) |
1159 | return r; | |
e04b0cdb | 1160 | |
878cd7e9 | 1161 | r = namespace_open(pid, &pidnsfd, &mntnsfd, NULL, &rootfd); |
b6741478 LP |
1162 | if (r < 0) |
1163 | return r; | |
1164 | ||
e04b0cdb | 1165 | if (socketpair(AF_UNIX, SOCK_DGRAM, 0, pair) < 0) |
b6741478 LP |
1166 | return -errno; |
1167 | ||
1168 | child = fork(); | |
1169 | if (child < 0) | |
1170 | return -errno; | |
1171 | ||
1172 | if (child == 0) { | |
1173 | int fd; | |
1174 | ||
03e334a1 | 1175 | pair[0] = safe_close(pair[0]); |
b6741478 | 1176 | |
878cd7e9 | 1177 | r = namespace_enter(pidnsfd, mntnsfd, -1, rootfd); |
b6741478 LP |
1178 | if (r < 0) |
1179 | _exit(EXIT_FAILURE); | |
1180 | ||
1181 | fd = open("/proc/sys/kernel/random/boot_id", O_RDONLY|O_CLOEXEC|O_NOCTTY); | |
1182 | if (fd < 0) | |
1183 | _exit(EXIT_FAILURE); | |
1184 | ||
1185 | k = loop_read(fd, buf, 36, false); | |
03e334a1 | 1186 | safe_close(fd); |
b6741478 LP |
1187 | if (k != 36) |
1188 | _exit(EXIT_FAILURE); | |
1189 | ||
e04b0cdb | 1190 | k = send(pair[1], buf, 36, MSG_NOSIGNAL); |
b6741478 LP |
1191 | if (k != 36) |
1192 | _exit(EXIT_FAILURE); | |
1193 | ||
1194 | _exit(EXIT_SUCCESS); | |
1195 | } | |
1196 | ||
03e334a1 | 1197 | pair[1] = safe_close(pair[1]); |
b6741478 | 1198 | |
b6741478 LP |
1199 | r = wait_for_terminate(child, &si); |
1200 | if (r < 0 || si.si_code != CLD_EXITED || si.si_status != EXIT_SUCCESS) | |
1201 | return r < 0 ? r : -EIO; | |
1202 | ||
fbadf045 LP |
1203 | k = recv(pair[0], buf, 36, 0); |
1204 | if (k != 36) | |
1205 | return -EIO; | |
1206 | ||
b6741478 LP |
1207 | buf[36] = 0; |
1208 | r = sd_id128_from_string(buf, boot_id); | |
1209 | if (r < 0) | |
1210 | return r; | |
1211 | ||
1212 | return 0; | |
1213 | } | |
1214 | ||
1215 | int add_match_this_boot(sd_journal *j, const char *machine) { | |
5ec76417 ZJS |
1216 | char match[9+32+1] = "_BOOT_ID="; |
1217 | sd_id128_t boot_id; | |
1218 | int r; | |
1219 | ||
1220 | assert(j); | |
1221 | ||
b6741478 LP |
1222 | if (machine) { |
1223 | r = get_boot_id_for_machine(machine, &boot_id); | |
1224 | if (r < 0) { | |
1225 | log_error("Failed to get boot id of container %s: %s", machine, strerror(-r)); | |
1226 | return r; | |
1227 | } | |
1228 | } else { | |
1229 | r = sd_id128_get_boot(&boot_id); | |
1230 | if (r < 0) { | |
1231 | log_error("Failed to get boot id: %s", strerror(-r)); | |
1232 | return r; | |
1233 | } | |
5ec76417 ZJS |
1234 | } |
1235 | ||
1236 | sd_id128_to_string(boot_id, match + 9); | |
1237 | r = sd_journal_add_match(j, match, strlen(match)); | |
1238 | if (r < 0) { | |
1239 | log_error("Failed to add match: %s", strerror(-r)); | |
1240 | return r; | |
1241 | } | |
1242 | ||
1243 | r = sd_journal_add_conjunction(j); | |
1244 | if (r < 0) | |
1245 | return r; | |
1246 | ||
1247 | return 0; | |
1248 | } | |
1249 | ||
886a64fe | 1250 | int show_journal_by_unit( |
1a6c43e9 MT |
1251 | FILE *f, |
1252 | const char *unit, | |
1253 | OutputMode mode, | |
1254 | unsigned n_columns, | |
1255 | usec_t not_before, | |
1256 | unsigned how_many, | |
1257 | uid_t uid, | |
886a64fe | 1258 | OutputFlags flags, |
94e0bd7d ZJS |
1259 | bool system, |
1260 | bool *ellipsized) { | |
1a6c43e9 | 1261 | |
7fd1b19b | 1262 | _cleanup_journal_close_ sd_journal*j = NULL; |
1a6c43e9 | 1263 | int r; |
a688baa8 | 1264 | int jflags = SD_JOURNAL_LOCAL_ONLY | system * SD_JOURNAL_SYSTEM; |
1a6c43e9 MT |
1265 | |
1266 | assert(mode >= 0); | |
1267 | assert(mode < _OUTPUT_MODE_MAX); | |
1268 | assert(unit); | |
1269 | ||
1a6c43e9 MT |
1270 | if (how_many <= 0) |
1271 | return 0; | |
1272 | ||
886a64fe | 1273 | r = sd_journal_open(&j, jflags); |
f9045468 | 1274 | if (r < 0) |
763c7aa2 | 1275 | return r; |
f9045468 | 1276 | |
b6741478 | 1277 | r = add_match_this_boot(j, NULL); |
5ec76417 ZJS |
1278 | if (r < 0) |
1279 | return r; | |
1280 | ||
886a64fe ZJS |
1281 | if (system) |
1282 | r = add_matches_for_unit(j, unit); | |
1283 | else | |
1284 | r = add_matches_for_user_unit(j, unit, uid); | |
1a6c43e9 | 1285 | if (r < 0) |
763c7aa2 | 1286 | return r; |
1a6c43e9 | 1287 | |
4ad16808 ZJS |
1288 | if (_unlikely_(log_get_max_level() >= LOG_PRI(LOG_DEBUG))) { |
1289 | _cleanup_free_ char *filter; | |
1290 | ||
1291 | filter = journal_make_match_string(j); | |
1292 | log_debug("Journal filter: %s", filter); | |
1293 | } | |
5ec76417 | 1294 | |
94e0bd7d | 1295 | return show_journal(f, j, mode, n_columns, not_before, how_many, flags, ellipsized); |
86aa7ba4 | 1296 | } |
df50185b LP |
1297 | |
1298 | static const char *const output_mode_table[_OUTPUT_MODE_MAX] = { | |
1299 | [OUTPUT_SHORT] = "short", | |
44bc6e1f | 1300 | [OUTPUT_SHORT_ISO] = "short-iso", |
f02d8367 ZJS |
1301 | [OUTPUT_SHORT_PRECISE] = "short-precise", |
1302 | [OUTPUT_SHORT_MONOTONIC] = "short-monotonic", | |
df50185b LP |
1303 | [OUTPUT_VERBOSE] = "verbose", |
1304 | [OUTPUT_EXPORT] = "export", | |
d3f2bdbf | 1305 | [OUTPUT_JSON] = "json", |
a6e87e90 | 1306 | [OUTPUT_JSON_PRETTY] = "json-pretty", |
48383c25 | 1307 | [OUTPUT_JSON_SSE] = "json-sse", |
d3f2bdbf | 1308 | [OUTPUT_CAT] = "cat" |
df50185b LP |
1309 | }; |
1310 | ||
1311 | DEFINE_STRING_TABLE_LOOKUP(output_mode, OutputMode); |