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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 | ||
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 LP |
303 | fprintf(f, "[%5llu.%06llu]", |
304 | (unsigned long long) (t / USEC_PER_SEC), | |
305 | (unsigned long long) (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" | |
534 | "__REALTIME_TIMESTAMP=%llu\n" | |
535 | "__MONOTONIC_TIMESTAMP=%llu\n" | |
536 | "_BOOT_ID=%s\n", | |
537 | cursor, | |
538 | (unsigned long long) realtime, | |
539 | (unsigned long long) monotonic, | |
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 | ||
31f7bf19 | 550 | if (!utf8_is_printable(data, length)) { |
86aa7ba4 LP |
551 | const char *c; |
552 | uint64_t le64; | |
553 | ||
554 | c = memchr(data, '=', length); | |
555 | if (!c) { | |
556 | log_error("Invalid field."); | |
557 | return -EINVAL; | |
558 | } | |
559 | ||
08ace05b LP |
560 | fwrite(data, c - (const char*) data, 1, f); |
561 | fputc('\n', f); | |
86aa7ba4 | 562 | le64 = htole64(length - (c - (const char*) data) - 1); |
08ace05b LP |
563 | fwrite(&le64, sizeof(le64), 1, f); |
564 | fwrite(c + 1, length - (c - (const char*) data) - 1, 1, f); | |
86aa7ba4 | 565 | } else |
08ace05b | 566 | fwrite(data, length, 1, f); |
86aa7ba4 | 567 | |
08ace05b | 568 | fputc('\n', f); |
86aa7ba4 LP |
569 | } |
570 | ||
a72b6353 ZJS |
571 | if (r < 0) |
572 | return r; | |
573 | ||
08ace05b | 574 | fputc('\n', f); |
86aa7ba4 LP |
575 | |
576 | return 0; | |
577 | } | |
578 | ||
240a5fe8 | 579 | void json_escape( |
08ace05b LP |
580 | FILE *f, |
581 | const char* p, | |
582 | size_t l, | |
583 | OutputFlags flags) { | |
584 | ||
585 | assert(f); | |
586 | assert(p); | |
587 | ||
93b73b06 | 588 | if (!(flags & OUTPUT_SHOW_ALL) && l >= JSON_THRESHOLD) |
08ace05b LP |
589 | |
590 | fputs("null", f); | |
591 | ||
31f7bf19 | 592 | else if (!utf8_is_printable(p, l)) { |
86aa7ba4 LP |
593 | bool not_first = false; |
594 | ||
08ace05b | 595 | fputs("[ ", f); |
86aa7ba4 LP |
596 | |
597 | while (l > 0) { | |
598 | if (not_first) | |
08ace05b | 599 | fprintf(f, ", %u", (uint8_t) *p); |
86aa7ba4 LP |
600 | else { |
601 | not_first = true; | |
08ace05b | 602 | fprintf(f, "%u", (uint8_t) *p); |
86aa7ba4 LP |
603 | } |
604 | ||
605 | p++; | |
606 | l--; | |
607 | } | |
608 | ||
08ace05b | 609 | fputs(" ]", f); |
86aa7ba4 | 610 | } else { |
08ace05b | 611 | fputc('\"', f); |
86aa7ba4 LP |
612 | |
613 | while (l > 0) { | |
614 | if (*p == '"' || *p == '\\') { | |
08ace05b LP |
615 | fputc('\\', f); |
616 | fputc(*p, f); | |
31f7bf19 ZJS |
617 | } else if (*p == '\n') |
618 | fputs("\\n", f); | |
619 | else if (*p < ' ') | |
08ace05b LP |
620 | fprintf(f, "\\u%04x", *p); |
621 | else | |
622 | fputc(*p, f); | |
86aa7ba4 LP |
623 | |
624 | p++; | |
625 | l--; | |
626 | } | |
627 | ||
08ace05b | 628 | fputc('\"', f); |
86aa7ba4 LP |
629 | } |
630 | } | |
631 | ||
08ace05b LP |
632 | static int output_json( |
633 | FILE *f, | |
634 | sd_journal *j, | |
635 | OutputMode mode, | |
636 | unsigned n_columns, | |
637 | OutputFlags flags) { | |
638 | ||
86aa7ba4 | 639 | uint64_t realtime, monotonic; |
7fd1b19b | 640 | _cleanup_free_ char *cursor = NULL; |
86aa7ba4 LP |
641 | const void *data; |
642 | size_t length; | |
643 | sd_id128_t boot_id; | |
2e729834 | 644 | char sid[33], *k; |
86aa7ba4 | 645 | int r; |
d99ae53a LP |
646 | Hashmap *h = NULL; |
647 | bool done, separator; | |
86aa7ba4 LP |
648 | |
649 | assert(j); | |
650 | ||
93b73b06 LP |
651 | sd_journal_set_data_threshold(j, flags & OUTPUT_SHOW_ALL ? 0 : JSON_THRESHOLD); |
652 | ||
86aa7ba4 LP |
653 | r = sd_journal_get_realtime_usec(j, &realtime); |
654 | if (r < 0) { | |
655 | log_error("Failed to get realtime timestamp: %s", strerror(-r)); | |
656 | return r; | |
657 | } | |
658 | ||
659 | r = sd_journal_get_monotonic_usec(j, &monotonic, &boot_id); | |
660 | if (r < 0) { | |
661 | log_error("Failed to get monotonic timestamp: %s", strerror(-r)); | |
662 | return r; | |
663 | } | |
664 | ||
665 | r = sd_journal_get_cursor(j, &cursor); | |
666 | if (r < 0) { | |
667 | log_error("Failed to get cursor: %s", strerror(-r)); | |
668 | return r; | |
669 | } | |
670 | ||
a6e87e90 | 671 | if (mode == OUTPUT_JSON_PRETTY) |
08ace05b LP |
672 | fprintf(f, |
673 | "{\n" | |
674 | "\t\"__CURSOR\" : \"%s\",\n" | |
675 | "\t\"__REALTIME_TIMESTAMP\" : \"%llu\",\n" | |
676 | "\t\"__MONOTONIC_TIMESTAMP\" : \"%llu\",\n" | |
677 | "\t\"_BOOT_ID\" : \"%s\"", | |
678 | cursor, | |
679 | (unsigned long long) realtime, | |
680 | (unsigned long long) monotonic, | |
681 | sd_id128_to_string(boot_id, sid)); | |
48383c25 LP |
682 | else { |
683 | if (mode == OUTPUT_JSON_SSE) | |
684 | fputs("data: ", f); | |
685 | ||
08ace05b LP |
686 | fprintf(f, |
687 | "{ \"__CURSOR\" : \"%s\", " | |
688 | "\"__REALTIME_TIMESTAMP\" : \"%llu\", " | |
689 | "\"__MONOTONIC_TIMESTAMP\" : \"%llu\", " | |
690 | "\"_BOOT_ID\" : \"%s\"", | |
691 | cursor, | |
692 | (unsigned long long) realtime, | |
693 | (unsigned long long) monotonic, | |
694 | sd_id128_to_string(boot_id, sid)); | |
48383c25 | 695 | } |
86aa7ba4 | 696 | |
d99ae53a LP |
697 | h = hashmap_new(string_hash_func, string_compare_func); |
698 | if (!h) | |
699 | return -ENOMEM; | |
700 | ||
701 | /* First round, iterate through the entry and count how often each field appears */ | |
a72b6353 | 702 | JOURNAL_FOREACH_DATA_RETVAL(j, data, length, r) { |
d99ae53a LP |
703 | const char *eq; |
704 | char *n; | |
705 | unsigned u; | |
86aa7ba4 | 706 | |
112301ae LP |
707 | if (length >= 9 && |
708 | memcmp(data, "_BOOT_ID=", 9) == 0) | |
709 | continue; | |
710 | ||
d99ae53a LP |
711 | eq = memchr(data, '=', length); |
712 | if (!eq) | |
713 | continue; | |
86aa7ba4 | 714 | |
d99ae53a LP |
715 | n = strndup(data, eq - (const char*) data); |
716 | if (!n) { | |
717 | r = -ENOMEM; | |
718 | goto finish; | |
719 | } | |
a6e87e90 | 720 | |
d99ae53a LP |
721 | u = PTR_TO_UINT(hashmap_get(h, n)); |
722 | if (u == 0) { | |
723 | r = hashmap_put(h, n, UINT_TO_PTR(1)); | |
724 | if (r < 0) { | |
725 | free(n); | |
726 | goto finish; | |
727 | } | |
728 | } else { | |
729 | r = hashmap_update(h, n, UINT_TO_PTR(u + 1)); | |
730 | free(n); | |
731 | if (r < 0) | |
732 | goto finish; | |
733 | } | |
86aa7ba4 LP |
734 | } |
735 | ||
a72b6353 ZJS |
736 | if (r < 0) |
737 | return r; | |
738 | ||
d99ae53a LP |
739 | separator = true; |
740 | do { | |
741 | done = true; | |
742 | ||
743 | SD_JOURNAL_FOREACH_DATA(j, data, length) { | |
744 | const char *eq; | |
745 | char *kk, *n; | |
746 | size_t m; | |
747 | unsigned u; | |
748 | ||
749 | /* We already printed the boot id, from the data in | |
750 | * the header, hence let's suppress it here */ | |
751 | if (length >= 9 && | |
752 | memcmp(data, "_BOOT_ID=", 9) == 0) | |
753 | continue; | |
754 | ||
755 | eq = memchr(data, '=', length); | |
756 | if (!eq) | |
757 | continue; | |
758 | ||
759 | if (separator) { | |
760 | if (mode == OUTPUT_JSON_PRETTY) | |
761 | fputs(",\n\t", f); | |
762 | else | |
763 | fputs(", ", f); | |
764 | } | |
765 | ||
766 | m = eq - (const char*) data; | |
767 | ||
768 | n = strndup(data, m); | |
769 | if (!n) { | |
770 | r = -ENOMEM; | |
771 | goto finish; | |
772 | } | |
773 | ||
774 | u = PTR_TO_UINT(hashmap_get2(h, n, (void**) &kk)); | |
775 | if (u == 0) { | |
776 | /* We already printed this, let's jump to the next */ | |
777 | free(n); | |
778 | separator = false; | |
779 | ||
780 | continue; | |
781 | } else if (u == 1) { | |
782 | /* Field only appears once, output it directly */ | |
783 | ||
784 | json_escape(f, data, m, flags); | |
785 | fputs(" : ", f); | |
786 | ||
787 | json_escape(f, eq + 1, length - m - 1, flags); | |
788 | ||
789 | hashmap_remove(h, n); | |
790 | free(kk); | |
791 | free(n); | |
792 | ||
793 | separator = true; | |
794 | ||
795 | continue; | |
796 | ||
797 | } else { | |
798 | /* Field appears multiple times, output it as array */ | |
799 | json_escape(f, data, m, flags); | |
800 | fputs(" : [ ", f); | |
801 | json_escape(f, eq + 1, length - m - 1, flags); | |
802 | ||
803 | /* Iterate through the end of the list */ | |
804 | ||
805 | while (sd_journal_enumerate_data(j, &data, &length) > 0) { | |
806 | if (length < m + 1) | |
807 | continue; | |
808 | ||
809 | if (memcmp(data, n, m) != 0) | |
810 | continue; | |
811 | ||
812 | if (((const char*) data)[m] != '=') | |
813 | continue; | |
814 | ||
815 | fputs(", ", f); | |
816 | json_escape(f, (const char*) data + m + 1, length - m - 1, flags); | |
817 | } | |
818 | ||
819 | fputs(" ]", f); | |
820 | ||
821 | hashmap_remove(h, n); | |
822 | free(kk); | |
823 | free(n); | |
824 | ||
825 | /* Iterate data fields form the beginning */ | |
826 | done = false; | |
827 | separator = true; | |
828 | ||
829 | break; | |
830 | } | |
831 | } | |
832 | ||
833 | } while (!done); | |
834 | ||
a6e87e90 | 835 | if (mode == OUTPUT_JSON_PRETTY) |
08ace05b | 836 | fputs("\n}\n", f); |
48383c25 LP |
837 | else if (mode == OUTPUT_JSON_SSE) |
838 | fputs("}\n\n", f); | |
a6e87e90 | 839 | else |
08ace05b | 840 | fputs(" }\n", f); |
86aa7ba4 | 841 | |
d99ae53a LP |
842 | r = 0; |
843 | ||
844 | finish: | |
845 | while ((k = hashmap_steal_first_key(h))) | |
846 | free(k); | |
847 | ||
848 | hashmap_free(h); | |
849 | ||
850 | return r; | |
86aa7ba4 LP |
851 | } |
852 | ||
08ace05b LP |
853 | static int output_cat( |
854 | FILE *f, | |
855 | sd_journal *j, | |
856 | OutputMode mode, | |
857 | unsigned n_columns, | |
858 | OutputFlags flags) { | |
859 | ||
d3f2bdbf LP |
860 | const void *data; |
861 | size_t l; | |
862 | int r; | |
863 | ||
864 | assert(j); | |
08ace05b | 865 | assert(f); |
d3f2bdbf | 866 | |
93b73b06 LP |
867 | sd_journal_set_data_threshold(j, 0); |
868 | ||
d3f2bdbf LP |
869 | r = sd_journal_get_data(j, "MESSAGE", &data, &l); |
870 | if (r < 0) { | |
c198300f LP |
871 | /* An entry without MESSAGE=? */ |
872 | if (r == -ENOENT) | |
873 | return 0; | |
874 | ||
d3f2bdbf LP |
875 | log_error("Failed to get data: %s", strerror(-r)); |
876 | return r; | |
877 | } | |
878 | ||
879 | assert(l >= 8); | |
880 | ||
08ace05b LP |
881 | fwrite((const char*) data + 8, 1, l - 8, f); |
882 | fputc('\n', f); | |
d3f2bdbf LP |
883 | |
884 | return 0; | |
885 | } | |
886 | ||
08ace05b LP |
887 | static int (*output_funcs[_OUTPUT_MODE_MAX])( |
888 | FILE *f, | |
889 | sd_journal*j, | |
890 | OutputMode mode, | |
891 | unsigned n_columns, | |
892 | OutputFlags flags) = { | |
893 | ||
a6e87e90 | 894 | [OUTPUT_SHORT] = output_short, |
44bc6e1f | 895 | [OUTPUT_SHORT_ISO] = output_short, |
f02d8367 ZJS |
896 | [OUTPUT_SHORT_PRECISE] = output_short, |
897 | [OUTPUT_SHORT_MONOTONIC] = output_short, | |
86aa7ba4 LP |
898 | [OUTPUT_VERBOSE] = output_verbose, |
899 | [OUTPUT_EXPORT] = output_export, | |
d3f2bdbf | 900 | [OUTPUT_JSON] = output_json, |
a6e87e90 | 901 | [OUTPUT_JSON_PRETTY] = output_json, |
48383c25 | 902 | [OUTPUT_JSON_SSE] = output_json, |
d3f2bdbf | 903 | [OUTPUT_CAT] = output_cat |
86aa7ba4 LP |
904 | }; |
905 | ||
08ace05b LP |
906 | int output_journal( |
907 | FILE *f, | |
908 | sd_journal *j, | |
909 | OutputMode mode, | |
910 | unsigned n_columns, | |
94e0bd7d ZJS |
911 | OutputFlags flags, |
912 | bool *ellipsized) { | |
08ace05b | 913 | |
e268b81e | 914 | int ret; |
df50185b | 915 | assert(mode >= 0); |
86aa7ba4 LP |
916 | assert(mode < _OUTPUT_MODE_MAX); |
917 | ||
34a35ece LP |
918 | if (n_columns <= 0) |
919 | n_columns = columns(); | |
920 | ||
08ace05b | 921 | ret = output_funcs[mode](f, j, mode, n_columns, flags); |
e268b81e | 922 | fflush(stdout); |
94e0bd7d ZJS |
923 | |
924 | if (ellipsized && ret > 0) | |
925 | *ellipsized = true; | |
926 | ||
e268b81e | 927 | return ret; |
86aa7ba4 LP |
928 | } |
929 | ||
ea6c2dd1 LP |
930 | static int maybe_print_begin_newline(FILE *f, OutputFlags *flags) { |
931 | assert(f); | |
932 | assert(flags); | |
933 | ||
934 | if (!(*flags & OUTPUT_BEGIN_NEWLINE)) | |
935 | return 0; | |
936 | ||
937 | /* Print a beginning new line if that's request, but only once | |
938 | * on the first line we print. */ | |
939 | ||
940 | fputc('\n', f); | |
941 | *flags &= ~OUTPUT_BEGIN_NEWLINE; | |
942 | return 0; | |
943 | } | |
944 | ||
1a6c43e9 MT |
945 | static int show_journal(FILE *f, |
946 | sd_journal *j, | |
947 | OutputMode mode, | |
948 | unsigned n_columns, | |
949 | usec_t not_before, | |
950 | unsigned how_many, | |
94e0bd7d ZJS |
951 | OutputFlags flags, |
952 | bool *ellipsized) { | |
86aa7ba4 | 953 | |
86aa7ba4 | 954 | int r; |
df50185b LP |
955 | unsigned line = 0; |
956 | bool need_seek = false; | |
085d7120 | 957 | int warn_cutoff = flags & OUTPUT_WARN_CUTOFF; |
86aa7ba4 | 958 | |
1a6c43e9 | 959 | assert(j); |
df50185b LP |
960 | assert(mode >= 0); |
961 | assert(mode < _OUTPUT_MODE_MAX); | |
1946b0bd LP |
962 | |
963 | /* Seek to end */ | |
86aa7ba4 LP |
964 | r = sd_journal_seek_tail(j); |
965 | if (r < 0) | |
966 | goto finish; | |
967 | ||
df50185b LP |
968 | r = sd_journal_previous_skip(j, how_many); |
969 | if (r < 0) | |
970 | goto finish; | |
86aa7ba4 | 971 | |
df50185b LP |
972 | for (;;) { |
973 | for (;;) { | |
974 | usec_t usec; | |
975 | ||
976 | if (need_seek) { | |
977 | r = sd_journal_next(j); | |
978 | if (r < 0) | |
979 | goto finish; | |
980 | } | |
981 | ||
982 | if (r == 0) | |
983 | break; | |
86aa7ba4 | 984 | |
df50185b LP |
985 | need_seek = true; |
986 | ||
987 | if (not_before > 0) { | |
988 | r = sd_journal_get_monotonic_usec(j, &usec, NULL); | |
989 | ||
990 | /* -ESTALE is returned if the | |
991 | timestamp is not from this boot */ | |
992 | if (r == -ESTALE) | |
993 | continue; | |
994 | else if (r < 0) | |
995 | goto finish; | |
996 | ||
997 | if (usec < not_before) | |
998 | continue; | |
999 | } | |
1000 | ||
1001 | line ++; | |
ea6c2dd1 | 1002 | maybe_print_begin_newline(f, &flags); |
df50185b | 1003 | |
94e0bd7d | 1004 | r = output_journal(f, j, mode, n_columns, flags, ellipsized); |
df50185b LP |
1005 | if (r < 0) |
1006 | goto finish; | |
1007 | } | |
1008 | ||
08984293 LP |
1009 | if (warn_cutoff && line < how_many && not_before > 0) { |
1010 | sd_id128_t boot_id; | |
1011 | usec_t cutoff; | |
1012 | ||
1013 | /* Check whether the cutoff line is too early */ | |
1014 | ||
1015 | r = sd_id128_get_boot(&boot_id); | |
1016 | if (r < 0) | |
1017 | goto finish; | |
1018 | ||
1019 | r = sd_journal_get_cutoff_monotonic_usec(j, boot_id, &cutoff, NULL); | |
1020 | if (r < 0) | |
1021 | goto finish; | |
1022 | ||
ea6c2dd1 LP |
1023 | if (r > 0 && not_before < cutoff) { |
1024 | maybe_print_begin_newline(f, &flags); | |
08ace05b | 1025 | fprintf(f, "Warning: Journal has been rotated since unit was started. Log output is incomplete or unavailable.\n"); |
ea6c2dd1 | 1026 | } |
08984293 LP |
1027 | |
1028 | warn_cutoff = false; | |
1029 | } | |
1030 | ||
085d7120 | 1031 | if (!(flags & OUTPUT_FOLLOW)) |
86aa7ba4 LP |
1032 | break; |
1033 | ||
e02d1cf7 | 1034 | r = sd_journal_wait(j, (usec_t) -1); |
df50185b LP |
1035 | if (r < 0) |
1036 | goto finish; | |
1037 | ||
86aa7ba4 LP |
1038 | } |
1039 | ||
1a6c43e9 MT |
1040 | finish: |
1041 | return r; | |
1042 | } | |
1043 | ||
886a64fe | 1044 | int add_matches_for_unit(sd_journal *j, const char *unit) { |
1a6c43e9 | 1045 | int r; |
2d0b2e87 | 1046 | char *m1, *m2, *m3, *m4; |
1a6c43e9 | 1047 | |
886a64fe | 1048 | assert(j); |
1a6c43e9 MT |
1049 | assert(unit); |
1050 | ||
2d0b2e87 ZJS |
1051 | m1 = strappenda("_SYSTEMD_UNIT=", unit); |
1052 | m2 = strappenda("COREDUMP_UNIT=", unit); | |
1053 | m3 = strappenda("UNIT=", unit); | |
1054 | m4 = strappenda("OBJECT_SYSTEMD_UNIT=", unit); | |
1a6c43e9 | 1055 | |
886a64fe ZJS |
1056 | (void)( |
1057 | /* Look for messages from the service itself */ | |
1058 | (r = sd_journal_add_match(j, m1, 0)) || | |
1059 | ||
1060 | /* Look for coredumps of the service */ | |
1061 | (r = sd_journal_add_disjunction(j)) || | |
fdcd37df ZJS |
1062 | (r = sd_journal_add_match(j, "MESSAGE_ID=fc2e22bc6ee647b6b90729ab34a250b1", 0)) || |
1063 | (r = sd_journal_add_match(j, "_UID=0", 0)) || | |
886a64fe ZJS |
1064 | (r = sd_journal_add_match(j, m2, 0)) || |
1065 | ||
1066 | /* Look for messages from PID 1 about this service */ | |
1067 | (r = sd_journal_add_disjunction(j)) || | |
1068 | (r = sd_journal_add_match(j, "_PID=1", 0)) || | |
2d0b2e87 ZJS |
1069 | (r = sd_journal_add_match(j, m3, 0)) || |
1070 | ||
1071 | /* Look for messages from authorized daemons about this service */ | |
1072 | (r = sd_journal_add_disjunction(j)) || | |
1073 | (r = sd_journal_add_match(j, "_UID=0", 0)) || | |
1074 | (r = sd_journal_add_match(j, m4, 0)) | |
886a64fe | 1075 | ); |
2d0b2e87 | 1076 | |
69ae3ee0 ZJS |
1077 | if (r == 0 && endswith(unit, ".slice")) { |
1078 | char *m5 = strappend("_SYSTEMD_SLICE=", unit); | |
1079 | ||
1080 | /* Show all messages belonging to a slice */ | |
1081 | (void)( | |
1082 | (r = sd_journal_add_disjunction(j)) || | |
1083 | (r = sd_journal_add_match(j, m5, 0)) | |
1084 | ); | |
1085 | } | |
1086 | ||
886a64fe ZJS |
1087 | return r; |
1088 | } | |
1a6c43e9 | 1089 | |
886a64fe ZJS |
1090 | int add_matches_for_user_unit(sd_journal *j, const char *unit, uid_t uid) { |
1091 | int r; | |
2d0b2e87 ZJS |
1092 | char *m1, *m2, *m3, *m4; |
1093 | char muid[sizeof("_UID=") + DECIMAL_STR_MAX(uid_t)]; | |
1a6c43e9 | 1094 | |
886a64fe ZJS |
1095 | assert(j); |
1096 | assert(unit); | |
1a6c43e9 | 1097 | |
2d0b2e87 ZJS |
1098 | m1 = strappenda("_SYSTEMD_USER_UNIT=", unit); |
1099 | m2 = strappenda("USER_UNIT=", unit); | |
1100 | m3 = strappenda("COREDUMP_USER_UNIT=", unit); | |
1101 | m4 = strappenda("OBJECT_SYSTEMD_USER_UNIT=", unit); | |
1102 | sprintf(muid, "_UID=%lu", (unsigned long) uid); | |
1a6c43e9 | 1103 | |
886a64fe ZJS |
1104 | (void) ( |
1105 | /* Look for messages from the user service itself */ | |
1106 | (r = sd_journal_add_match(j, m1, 0)) || | |
2d0b2e87 | 1107 | (r = sd_journal_add_match(j, muid, 0)) || |
886a64fe ZJS |
1108 | |
1109 | /* Look for messages from systemd about this service */ | |
1110 | (r = sd_journal_add_disjunction(j)) || | |
1111 | (r = sd_journal_add_match(j, m2, 0)) || | |
2d0b2e87 | 1112 | (r = sd_journal_add_match(j, muid, 0)) || |
886a64fe ZJS |
1113 | |
1114 | /* Look for coredumps of the service */ | |
1115 | (r = sd_journal_add_disjunction(j)) || | |
1116 | (r = sd_journal_add_match(j, m3, 0)) || | |
2d0b2e87 ZJS |
1117 | (r = sd_journal_add_match(j, muid, 0)) || |
1118 | (r = sd_journal_add_match(j, "_UID=0", 0)) || | |
1119 | ||
1120 | /* Look for messages from authorized daemons about this service */ | |
1121 | (r = sd_journal_add_disjunction(j)) || | |
fdcd37df | 1122 | (r = sd_journal_add_match(j, m4, 0)) || |
2d0b2e87 | 1123 | (r = sd_journal_add_match(j, muid, 0)) || |
fdcd37df | 1124 | (r = sd_journal_add_match(j, "_UID=0", 0)) |
886a64fe | 1125 | ); |
69ae3ee0 ZJS |
1126 | |
1127 | if (r == 0 && endswith(unit, ".slice")) { | |
1128 | char *m5 = strappend("_SYSTEMD_SLICE=", unit); | |
1129 | ||
1130 | /* Show all messages belonging to a slice */ | |
1131 | (void)( | |
1132 | (r = sd_journal_add_disjunction(j)) || | |
1133 | (r = sd_journal_add_match(j, m5, 0)) || | |
1134 | (r = sd_journal_add_match(j, muid, 0)) | |
1135 | ); | |
1136 | } | |
1137 | ||
1a6c43e9 MT |
1138 | return r; |
1139 | } | |
1140 | ||
b6741478 | 1141 | static int get_boot_id_for_machine(const char *machine, sd_id128_t *boot_id) { |
e04b0cdb | 1142 | _cleanup_close_pipe_ int pair[2] = { -1, -1 }; |
a4475f57 | 1143 | _cleanup_close_ int pidnsfd = -1, mntnsfd = -1, rootfd = -1; |
b6741478 LP |
1144 | pid_t pid, child; |
1145 | siginfo_t si; | |
1146 | char buf[37]; | |
1147 | ssize_t k; | |
1148 | int r; | |
1149 | ||
1150 | assert(machine); | |
1151 | assert(boot_id); | |
1152 | ||
1153 | if (!filename_is_safe(machine)) | |
1154 | return -EINVAL; | |
1155 | ||
e04b0cdb | 1156 | r = container_get_leader(machine, &pid); |
b6741478 LP |
1157 | if (r < 0) |
1158 | return r; | |
e04b0cdb | 1159 | |
a4475f57 | 1160 | r = namespace_open(pid, &pidnsfd, &mntnsfd, &rootfd); |
b6741478 LP |
1161 | if (r < 0) |
1162 | return r; | |
1163 | ||
e04b0cdb | 1164 | if (socketpair(AF_UNIX, SOCK_DGRAM, 0, pair) < 0) |
b6741478 LP |
1165 | return -errno; |
1166 | ||
1167 | child = fork(); | |
1168 | if (child < 0) | |
1169 | return -errno; | |
1170 | ||
1171 | if (child == 0) { | |
1172 | int fd; | |
1173 | ||
03e334a1 | 1174 | pair[0] = safe_close(pair[0]); |
b6741478 | 1175 | |
a4475f57 | 1176 | r = namespace_enter(pidnsfd, mntnsfd, rootfd); |
b6741478 LP |
1177 | if (r < 0) |
1178 | _exit(EXIT_FAILURE); | |
1179 | ||
1180 | fd = open("/proc/sys/kernel/random/boot_id", O_RDONLY|O_CLOEXEC|O_NOCTTY); | |
1181 | if (fd < 0) | |
1182 | _exit(EXIT_FAILURE); | |
1183 | ||
1184 | k = loop_read(fd, buf, 36, false); | |
03e334a1 | 1185 | safe_close(fd); |
b6741478 LP |
1186 | if (k != 36) |
1187 | _exit(EXIT_FAILURE); | |
1188 | ||
e04b0cdb | 1189 | k = send(pair[1], buf, 36, MSG_NOSIGNAL); |
b6741478 LP |
1190 | if (k != 36) |
1191 | _exit(EXIT_FAILURE); | |
1192 | ||
1193 | _exit(EXIT_SUCCESS); | |
1194 | } | |
1195 | ||
03e334a1 | 1196 | pair[1] = safe_close(pair[1]); |
b6741478 | 1197 | |
b6741478 LP |
1198 | r = wait_for_terminate(child, &si); |
1199 | if (r < 0 || si.si_code != CLD_EXITED || si.si_status != EXIT_SUCCESS) | |
1200 | return r < 0 ? r : -EIO; | |
1201 | ||
fbadf045 LP |
1202 | k = recv(pair[0], buf, 36, 0); |
1203 | if (k != 36) | |
1204 | return -EIO; | |
1205 | ||
b6741478 LP |
1206 | buf[36] = 0; |
1207 | r = sd_id128_from_string(buf, boot_id); | |
1208 | if (r < 0) | |
1209 | return r; | |
1210 | ||
1211 | return 0; | |
1212 | } | |
1213 | ||
1214 | int add_match_this_boot(sd_journal *j, const char *machine) { | |
5ec76417 ZJS |
1215 | char match[9+32+1] = "_BOOT_ID="; |
1216 | sd_id128_t boot_id; | |
1217 | int r; | |
1218 | ||
1219 | assert(j); | |
1220 | ||
b6741478 LP |
1221 | if (machine) { |
1222 | r = get_boot_id_for_machine(machine, &boot_id); | |
1223 | if (r < 0) { | |
1224 | log_error("Failed to get boot id of container %s: %s", machine, strerror(-r)); | |
1225 | return r; | |
1226 | } | |
1227 | } else { | |
1228 | r = sd_id128_get_boot(&boot_id); | |
1229 | if (r < 0) { | |
1230 | log_error("Failed to get boot id: %s", strerror(-r)); | |
1231 | return r; | |
1232 | } | |
5ec76417 ZJS |
1233 | } |
1234 | ||
1235 | sd_id128_to_string(boot_id, match + 9); | |
1236 | r = sd_journal_add_match(j, match, strlen(match)); | |
1237 | if (r < 0) { | |
1238 | log_error("Failed to add match: %s", strerror(-r)); | |
1239 | return r; | |
1240 | } | |
1241 | ||
1242 | r = sd_journal_add_conjunction(j); | |
1243 | if (r < 0) | |
1244 | return r; | |
1245 | ||
1246 | return 0; | |
1247 | } | |
1248 | ||
886a64fe | 1249 | int show_journal_by_unit( |
1a6c43e9 MT |
1250 | FILE *f, |
1251 | const char *unit, | |
1252 | OutputMode mode, | |
1253 | unsigned n_columns, | |
1254 | usec_t not_before, | |
1255 | unsigned how_many, | |
1256 | uid_t uid, | |
886a64fe | 1257 | OutputFlags flags, |
94e0bd7d ZJS |
1258 | bool system, |
1259 | bool *ellipsized) { | |
1a6c43e9 | 1260 | |
7fd1b19b | 1261 | _cleanup_journal_close_ sd_journal*j = NULL; |
1a6c43e9 | 1262 | int r; |
a688baa8 | 1263 | int jflags = SD_JOURNAL_LOCAL_ONLY | system * SD_JOURNAL_SYSTEM; |
1a6c43e9 MT |
1264 | |
1265 | assert(mode >= 0); | |
1266 | assert(mode < _OUTPUT_MODE_MAX); | |
1267 | assert(unit); | |
1268 | ||
1a6c43e9 MT |
1269 | if (how_many <= 0) |
1270 | return 0; | |
1271 | ||
886a64fe | 1272 | r = sd_journal_open(&j, jflags); |
f9045468 | 1273 | if (r < 0) |
763c7aa2 | 1274 | return r; |
f9045468 | 1275 | |
b6741478 | 1276 | r = add_match_this_boot(j, NULL); |
5ec76417 ZJS |
1277 | if (r < 0) |
1278 | return r; | |
1279 | ||
886a64fe ZJS |
1280 | if (system) |
1281 | r = add_matches_for_unit(j, unit); | |
1282 | else | |
1283 | r = add_matches_for_user_unit(j, unit, uid); | |
1a6c43e9 | 1284 | if (r < 0) |
763c7aa2 | 1285 | return r; |
1a6c43e9 | 1286 | |
4ad16808 ZJS |
1287 | if (_unlikely_(log_get_max_level() >= LOG_PRI(LOG_DEBUG))) { |
1288 | _cleanup_free_ char *filter; | |
1289 | ||
1290 | filter = journal_make_match_string(j); | |
1291 | log_debug("Journal filter: %s", filter); | |
1292 | } | |
5ec76417 | 1293 | |
94e0bd7d | 1294 | return show_journal(f, j, mode, n_columns, not_before, how_many, flags, ellipsized); |
86aa7ba4 | 1295 | } |
df50185b LP |
1296 | |
1297 | static const char *const output_mode_table[_OUTPUT_MODE_MAX] = { | |
1298 | [OUTPUT_SHORT] = "short", | |
44bc6e1f | 1299 | [OUTPUT_SHORT_ISO] = "short-iso", |
f02d8367 ZJS |
1300 | [OUTPUT_SHORT_PRECISE] = "short-precise", |
1301 | [OUTPUT_SHORT_MONOTONIC] = "short-monotonic", | |
df50185b LP |
1302 | [OUTPUT_VERBOSE] = "verbose", |
1303 | [OUTPUT_EXPORT] = "export", | |
d3f2bdbf | 1304 | [OUTPUT_JSON] = "json", |
a6e87e90 | 1305 | [OUTPUT_JSON_PRETTY] = "json-pretty", |
48383c25 | 1306 | [OUTPUT_JSON_SSE] = "json-sse", |
d3f2bdbf | 1307 | [OUTPUT_CAT] = "cat" |
df50185b LP |
1308 | }; |
1309 | ||
1310 | DEFINE_STRING_TABLE_LOOKUP(output_mode, OutputMode); |