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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> | |
86aa7ba4 | 23 | #include <errno.h> |
2a410422 | 24 | #include <sys/socket.h> |
55d7bfc1 | 25 | #include <string.h> |
b6741478 | 26 | #include <fcntl.h> |
86aa7ba4 LP |
27 | |
28 | #include "logs-show.h" | |
29 | #include "log.h" | |
30 | #include "util.h" | |
ba961854 | 31 | #include "utf8.h" |
d99ae53a | 32 | #include "hashmap.h" |
dfb33a97 | 33 | #include "journal-internal.h" |
6482f626 | 34 | #include "formats-util.h" |
86aa7ba4 | 35 | |
a6f0104a ZJS |
36 | /* up to three lines (each up to 100 characters), |
37 | or 300 characters, whichever is less */ | |
38 | #define PRINT_LINE_THRESHOLD 3 | |
39 | #define PRINT_CHAR_THRESHOLD 300 | |
40 | ||
08ace05b | 41 | #define JSON_THRESHOLD 4096 |
86aa7ba4 | 42 | |
d4205751 LP |
43 | static int print_catalog(FILE *f, sd_journal *j) { |
44 | int r; | |
45 | _cleanup_free_ char *t = NULL, *z = NULL; | |
46 | ||
47 | ||
48 | r = sd_journal_get_catalog(j, &t); | |
49 | if (r < 0) | |
50 | return r; | |
51 | ||
52 | z = strreplace(strstrip(t), "\n", "\n-- "); | |
53 | if (!z) | |
54 | return log_oom(); | |
55 | ||
56 | fputs("-- ", f); | |
57 | fputs(z, f); | |
58 | fputc('\n', f); | |
59 | ||
60 | return 0; | |
61 | } | |
62 | ||
55d7bfc1 LP |
63 | static int parse_field(const void *data, size_t length, const char *field, char **target, size_t *target_size) { |
64 | size_t fl, nl; | |
65 | void *buf; | |
66 | ||
67 | assert(data); | |
68 | assert(field); | |
69 | assert(target); | |
70 | assert(target_size); | |
71 | ||
72 | fl = strlen(field); | |
73 | if (length < fl) | |
74 | return 0; | |
75 | ||
76 | if (memcmp(data, field, fl)) | |
77 | return 0; | |
78 | ||
79 | nl = length - fl; | |
bf967366 | 80 | buf = malloc(nl+1); |
0d0f0c50 SL |
81 | if (!buf) |
82 | return log_oom(); | |
55d7bfc1 | 83 | |
46b0d922 LP |
84 | memcpy(buf, (const char*) data + fl, nl); |
85 | ((char*)buf)[nl] = 0; | |
86 | ||
6c1e6b98 | 87 | free(*target); |
55d7bfc1 LP |
88 | *target = buf; |
89 | *target_size = nl; | |
90 | ||
91 | return 1; | |
92 | } | |
93 | ||
08ace05b LP |
94 | static bool shall_print(const char *p, size_t l, OutputFlags flags) { |
95 | assert(p); | |
96 | ||
97 | if (flags & OUTPUT_SHOW_ALL) | |
55d7bfc1 LP |
98 | return true; |
99 | ||
a6f0104a | 100 | if (l >= PRINT_CHAR_THRESHOLD) |
55d7bfc1 LP |
101 | return false; |
102 | ||
31f7bf19 | 103 | if (!utf8_is_printable(p, l)) |
55d7bfc1 LP |
104 | return false; |
105 | ||
106 | return true; | |
107 | } | |
108 | ||
00f117a5 | 109 | static bool print_multiline(FILE *f, unsigned prefix, unsigned n_columns, OutputFlags flags, int priority, const char* message, size_t message_len) { |
31f7bf19 ZJS |
110 | const char *color_on = "", *color_off = ""; |
111 | const char *pos, *end; | |
94e0bd7d | 112 | bool ellipsized = false; |
a6f0104a | 113 | int line = 0; |
31f7bf19 ZJS |
114 | |
115 | if (flags & OUTPUT_COLOR) { | |
116 | if (priority <= LOG_ERR) { | |
117 | color_on = ANSI_HIGHLIGHT_RED_ON; | |
118 | color_off = ANSI_HIGHLIGHT_OFF; | |
119 | } else if (priority <= LOG_NOTICE) { | |
120 | color_on = ANSI_HIGHLIGHT_ON; | |
121 | color_off = ANSI_HIGHLIGHT_OFF; | |
122 | } | |
123 | } | |
124 | ||
47d80904 UU |
125 | /* A special case: make sure that we print a newline when |
126 | the message is empty. */ | |
127 | if (message_len == 0) | |
128 | fputs("\n", f); | |
129 | ||
a6f0104a ZJS |
130 | for (pos = message; |
131 | pos < message + message_len; | |
132 | pos = end + 1, line++) { | |
133 | bool continuation = line > 0; | |
134 | bool tail_line; | |
31f7bf19 ZJS |
135 | int len; |
136 | for (end = pos; end < message + message_len && *end != '\n'; end++) | |
137 | ; | |
138 | len = end - pos; | |
139 | assert(len >= 0); | |
140 | ||
2526d626 | 141 | /* We need to figure out when we are showing not-last line, *and* |
a6f0104a ZJS |
142 | * will skip subsequent lines. In that case, we will put the dots |
143 | * at the end of the line, instead of putting dots in the middle | |
144 | * or not at all. | |
145 | */ | |
146 | tail_line = | |
147 | line + 1 == PRINT_LINE_THRESHOLD || | |
2526d626 | 148 | end + 1 >= message + PRINT_CHAR_THRESHOLD; |
a6f0104a ZJS |
149 | |
150 | if (flags & (OUTPUT_FULL_WIDTH | OUTPUT_SHOW_ALL) || | |
151 | (prefix + len + 1 < n_columns && !tail_line)) { | |
31f7bf19 ZJS |
152 | fprintf(f, "%*s%s%.*s%s\n", |
153 | continuation * prefix, "", | |
154 | color_on, len, pos, color_off); | |
a6f0104a ZJS |
155 | continue; |
156 | } | |
31f7bf19 | 157 | |
a6f0104a ZJS |
158 | /* Beyond this point, ellipsization will happen. */ |
159 | ellipsized = true; | |
31f7bf19 | 160 | |
a6f0104a ZJS |
161 | if (prefix < n_columns && n_columns - prefix >= 3) { |
162 | if (n_columns - prefix > (unsigned) len + 3) | |
163 | fprintf(f, "%*s%s%.*s...%s\n", | |
b4b02cbe ZJS |
164 | continuation * prefix, "", |
165 | color_on, len, pos, color_off); | |
a6f0104a ZJS |
166 | else { |
167 | _cleanup_free_ char *e; | |
168 | ||
169 | e = ellipsize_mem(pos, len, n_columns - prefix, | |
170 | tail_line ? 100 : 90); | |
171 | if (!e) | |
172 | fprintf(f, "%*s%s%.*s%s\n", | |
173 | continuation * prefix, "", | |
174 | color_on, len, pos, color_off); | |
175 | else | |
176 | fprintf(f, "%*s%s%s%s\n", | |
177 | continuation * prefix, "", | |
178 | color_on, e, color_off); | |
179 | } | |
180 | } else | |
31f7bf19 ZJS |
181 | fputs("...\n", f); |
182 | ||
a6f0104a ZJS |
183 | if (tail_line) |
184 | break; | |
31f7bf19 | 185 | } |
94e0bd7d ZJS |
186 | |
187 | return ellipsized; | |
31f7bf19 ZJS |
188 | } |
189 | ||
08ace05b LP |
190 | static int output_short( |
191 | FILE *f, | |
192 | sd_journal *j, | |
193 | OutputMode mode, | |
194 | unsigned n_columns, | |
195 | OutputFlags flags) { | |
196 | ||
86aa7ba4 | 197 | int r; |
86aa7ba4 LP |
198 | const void *data; |
199 | size_t length; | |
200 | size_t n = 0; | |
08ace05b | 201 | _cleanup_free_ char *hostname = NULL, *identifier = NULL, *comm = NULL, *pid = NULL, *fake_pid = NULL, *message = NULL, *realtime = NULL, *monotonic = NULL, *priority = NULL; |
49826187 LP |
202 | 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; |
203 | int p = LOG_INFO; | |
94e0bd7d | 204 | bool ellipsized = false; |
86aa7ba4 | 205 | |
08ace05b | 206 | assert(f); |
86aa7ba4 LP |
207 | assert(j); |
208 | ||
a6f0104a | 209 | /* Set the threshold to one bigger than the actual print |
69ab8088 | 210 | * threshold, so that if the line is actually longer than what |
a6f0104a ZJS |
211 | * we're willing to print, ellipsization will occur. This way |
212 | * we won't output a misleading line without any indication of | |
213 | * truncation. | |
214 | */ | |
215 | sd_journal_set_data_threshold(j, flags & (OUTPUT_SHOW_ALL|OUTPUT_FULL_WIDTH) ? 0 : PRINT_CHAR_THRESHOLD + 1); | |
93b73b06 | 216 | |
a72b6353 | 217 | JOURNAL_FOREACH_DATA_RETVAL(j, data, length, r) { |
55d7bfc1 | 218 | |
49826187 LP |
219 | r = parse_field(data, length, "PRIORITY=", &priority, &priority_len); |
220 | if (r < 0) | |
08ace05b | 221 | return r; |
49826187 LP |
222 | else if (r > 0) |
223 | continue; | |
224 | ||
55d7bfc1 LP |
225 | r = parse_field(data, length, "_HOSTNAME=", &hostname, &hostname_len); |
226 | if (r < 0) | |
08ace05b | 227 | return r; |
55d7bfc1 LP |
228 | else if (r > 0) |
229 | continue; | |
230 | ||
4cd9a9d9 | 231 | r = parse_field(data, length, "SYSLOG_IDENTIFIER=", &identifier, &identifier_len); |
55d7bfc1 | 232 | if (r < 0) |
08ace05b | 233 | return r; |
55d7bfc1 LP |
234 | else if (r > 0) |
235 | continue; | |
236 | ||
237 | r = parse_field(data, length, "_COMM=", &comm, &comm_len); | |
238 | if (r < 0) | |
08ace05b | 239 | return r; |
55d7bfc1 LP |
240 | else if (r > 0) |
241 | continue; | |
242 | ||
243 | r = parse_field(data, length, "_PID=", &pid, &pid_len); | |
244 | if (r < 0) | |
08ace05b | 245 | return r; |
55d7bfc1 LP |
246 | else if (r > 0) |
247 | continue; | |
248 | ||
6c1e6b98 LP |
249 | r = parse_field(data, length, "SYSLOG_PID=", &fake_pid, &fake_pid_len); |
250 | if (r < 0) | |
08ace05b | 251 | return r; |
6c1e6b98 LP |
252 | else if (r > 0) |
253 | continue; | |
254 | ||
bf967366 LP |
255 | r = parse_field(data, length, "_SOURCE_REALTIME_TIMESTAMP=", &realtime, &realtime_len); |
256 | if (r < 0) | |
08ace05b | 257 | return r; |
bf967366 LP |
258 | else if (r > 0) |
259 | continue; | |
260 | ||
261 | r = parse_field(data, length, "_SOURCE_MONOTONIC_TIMESTAMP=", &monotonic, &monotonic_len); | |
262 | if (r < 0) | |
08ace05b | 263 | return r; |
bf967366 LP |
264 | else if (r > 0) |
265 | continue; | |
266 | ||
55d7bfc1 LP |
267 | r = parse_field(data, length, "MESSAGE=", &message, &message_len); |
268 | if (r < 0) | |
08ace05b | 269 | return r; |
55d7bfc1 LP |
270 | } |
271 | ||
a72b6353 ZJS |
272 | if (r < 0) |
273 | return r; | |
274 | ||
08ace05b LP |
275 | if (!message) |
276 | return 0; | |
55d7bfc1 | 277 | |
e8bc0ea2 LP |
278 | if (!(flags & OUTPUT_SHOW_ALL)) |
279 | strip_tab_ansi(&message, &message_len); | |
280 | ||
49826187 LP |
281 | if (priority_len == 1 && *priority >= '0' && *priority <= '7') |
282 | p = *priority - '0'; | |
283 | ||
a6e87e90 | 284 | if (mode == OUTPUT_SHORT_MONOTONIC) { |
67a12205 | 285 | uint64_t t; |
3ebcdf8c LP |
286 | sd_id128_t boot_id; |
287 | ||
bf967366 LP |
288 | r = -ENOENT; |
289 | ||
290 | if (monotonic) | |
291 | r = safe_atou64(monotonic, &t); | |
292 | ||
293 | if (r < 0) | |
3ebcdf8c | 294 | r = sd_journal_get_monotonic_usec(j, &t, &boot_id); |
86aa7ba4 | 295 | |
f647962d MS |
296 | if (r < 0) |
297 | return log_error_errno(r, "Failed to get monotonic timestamp: %m"); | |
67a12205 | 298 | |
08ace05b | 299 | fprintf(f, "[%5llu.%06llu]", |
609e002e LP |
300 | (unsigned long long) (t / USEC_PER_SEC), |
301 | (unsigned long long) (t % USEC_PER_SEC)); | |
3ebcdf8c LP |
302 | |
303 | n += 1 + 5 + 1 + 6 + 1; | |
304 | ||
67a12205 LP |
305 | } else { |
306 | char buf[64]; | |
bf967366 | 307 | uint64_t x; |
67a12205 LP |
308 | time_t t; |
309 | struct tm tm; | |
9fd29044 | 310 | struct tm *(*gettime_r)(const time_t *, struct tm *); |
731a676c | 311 | |
bf967366 | 312 | r = -ENOENT; |
9fd29044 | 313 | gettime_r = (flags & OUTPUT_UTC) ? gmtime_r : localtime_r; |
bf967366 LP |
314 | |
315 | if (realtime) | |
316 | r = safe_atou64(realtime, &x); | |
317 | ||
318 | if (r < 0) | |
319 | r = sd_journal_get_realtime_usec(j, &x); | |
67a12205 | 320 | |
f647962d MS |
321 | if (r < 0) |
322 | return log_error_errno(r, "Failed to get realtime timestamp: %m"); | |
67a12205 | 323 | |
bf967366 | 324 | t = (time_t) (x / USEC_PER_SEC); |
f02d8367 ZJS |
325 | |
326 | switch(mode) { | |
327 | case OUTPUT_SHORT_ISO: | |
9fd29044 | 328 | r = strftime(buf, sizeof(buf), "%Y-%m-%dT%H:%M:%S%z", gettime_r(&t, &tm)); |
f02d8367 ZJS |
329 | break; |
330 | case OUTPUT_SHORT_PRECISE: | |
9fd29044 | 331 | r = strftime(buf, sizeof(buf), "%b %d %H:%M:%S", gettime_r(&t, &tm)); |
f02d8367 ZJS |
332 | if (r > 0) { |
333 | snprintf(buf + strlen(buf), sizeof(buf) - strlen(buf), | |
609e002e | 334 | ".%06llu", (unsigned long long) (x % USEC_PER_SEC)); |
f02d8367 ZJS |
335 | } |
336 | break; | |
337 | default: | |
9fd29044 | 338 | r = strftime(buf, sizeof(buf), "%b %d %H:%M:%S", gettime_r(&t, &tm)); |
f02d8367 | 339 | } |
44bc6e1f TT |
340 | |
341 | if (r <= 0) { | |
67a12205 | 342 | log_error("Failed to format time."); |
44bc6e1f | 343 | return -EINVAL; |
67a12205 LP |
344 | } |
345 | ||
08ace05b | 346 | fputs(buf, f); |
67a12205 LP |
347 | n += strlen(buf); |
348 | } | |
86aa7ba4 | 349 | |
08ace05b LP |
350 | if (hostname && shall_print(hostname, hostname_len, flags)) { |
351 | fprintf(f, " %.*s", (int) hostname_len, hostname); | |
55d7bfc1 LP |
352 | n += hostname_len + 1; |
353 | } | |
354 | ||
08ace05b LP |
355 | if (identifier && shall_print(identifier, identifier_len, flags)) { |
356 | fprintf(f, " %.*s", (int) identifier_len, identifier); | |
4cd9a9d9 | 357 | n += identifier_len + 1; |
08ace05b LP |
358 | } else if (comm && shall_print(comm, comm_len, flags)) { |
359 | fprintf(f, " %.*s", (int) comm_len, comm); | |
55d7bfc1 | 360 | n += comm_len + 1; |
b5936820 | 361 | } else |
1248e840 | 362 | fputs(" unknown", f); |
86aa7ba4 | 363 | |
08ace05b LP |
364 | if (pid && shall_print(pid, pid_len, flags)) { |
365 | fprintf(f, "[%.*s]", (int) pid_len, pid); | |
55d7bfc1 | 366 | n += pid_len + 2; |
08ace05b LP |
367 | } else if (fake_pid && shall_print(fake_pid, fake_pid_len, flags)) { |
368 | fprintf(f, "[%.*s]", (int) fake_pid_len, fake_pid); | |
6c1e6b98 | 369 | n += fake_pid_len + 2; |
86aa7ba4 LP |
370 | } |
371 | ||
31f7bf19 | 372 | if (!(flags & OUTPUT_SHOW_ALL) && !utf8_is_printable(message, message_len)) { |
e6acda19 | 373 | char bytes[FORMAT_BYTES_MAX]; |
08ace05b | 374 | fprintf(f, ": [%s blob data]\n", format_bytes(bytes, sizeof(bytes), message_len)); |
31f7bf19 ZJS |
375 | } else { |
376 | fputs(": ", f); | |
94e0bd7d ZJS |
377 | ellipsized |= |
378 | print_multiline(f, n + 2, n_columns, flags, p, message, message_len); | |
31f7bf19 | 379 | } |
55d7bfc1 | 380 | |
d4205751 LP |
381 | if (flags & OUTPUT_CATALOG) |
382 | print_catalog(f, j); | |
383 | ||
94e0bd7d | 384 | return ellipsized; |
86aa7ba4 LP |
385 | } |
386 | ||
08ace05b LP |
387 | static int output_verbose( |
388 | FILE *f, | |
389 | sd_journal *j, | |
390 | OutputMode mode, | |
391 | unsigned n_columns, | |
392 | OutputFlags flags) { | |
393 | ||
86aa7ba4 LP |
394 | const void *data; |
395 | size_t length; | |
7fd1b19b | 396 | _cleanup_free_ char *cursor = NULL; |
86aa7ba4 | 397 | uint64_t realtime; |
f02d8367 | 398 | char ts[FORMAT_TIMESTAMP_MAX + 7]; |
86aa7ba4 LP |
399 | int r; |
400 | ||
08ace05b | 401 | assert(f); |
86aa7ba4 LP |
402 | assert(j); |
403 | ||
93b73b06 LP |
404 | sd_journal_set_data_threshold(j, 0); |
405 | ||
cf40f0be ZJS |
406 | r = sd_journal_get_data(j, "_SOURCE_REALTIME_TIMESTAMP", &data, &length); |
407 | if (r == -ENOENT) | |
408 | log_debug("Source realtime timestamp not found"); | |
409 | else if (r < 0) { | |
a72b6353 | 410 | log_full(r == -EADDRNOTAVAIL ? LOG_DEBUG : LOG_ERR, |
cf40f0be | 411 | "Failed to get source realtime timestamp: %s", strerror(-r)); |
86aa7ba4 | 412 | return r; |
cf40f0be ZJS |
413 | } else { |
414 | _cleanup_free_ char *value = NULL; | |
415 | size_t size; | |
416 | ||
417 | r = parse_field(data, length, "_SOURCE_REALTIME_TIMESTAMP=", &value, &size); | |
418 | if (r < 0) | |
da927ba9 | 419 | log_debug_errno(r, "_SOURCE_REALTIME_TIMESTAMP invalid: %m"); |
cf40f0be ZJS |
420 | else { |
421 | r = safe_atou64(value, &realtime); | |
422 | if (r < 0) | |
c33b3297 | 423 | log_debug_errno(r, "Failed to parse realtime timestamp: %m"); |
cf40f0be ZJS |
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); | |
f647962d MS |
437 | if (r < 0) |
438 | return log_error_errno(r, "Failed to get cursor: %m"); | |
86aa7ba4 | 439 | |
08ace05b | 440 | fprintf(f, "%s [%s]\n", |
5ab99e07 LP |
441 | flags & OUTPUT_UTC ? |
442 | format_timestamp_us_utc(ts, sizeof(ts), realtime) : | |
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 | 509 | r = sd_journal_get_realtime_usec(j, &realtime); |
f647962d MS |
510 | if (r < 0) |
511 | return log_error_errno(r, "Failed to get realtime timestamp: %m"); | |
86aa7ba4 LP |
512 | |
513 | r = sd_journal_get_monotonic_usec(j, &monotonic, &boot_id); | |
f647962d MS |
514 | if (r < 0) |
515 | return log_error_errno(r, "Failed to get monotonic timestamp: %m"); | |
86aa7ba4 LP |
516 | |
517 | r = sd_journal_get_cursor(j, &cursor); | |
f647962d MS |
518 | if (r < 0) |
519 | return log_error_errno(r, "Failed to get cursor: %m"); | |
86aa7ba4 | 520 | |
08ace05b LP |
521 | fprintf(f, |
522 | "__CURSOR=%s\n" | |
de0671ee ZJS |
523 | "__REALTIME_TIMESTAMP="USEC_FMT"\n" |
524 | "__MONOTONIC_TIMESTAMP="USEC_FMT"\n" | |
08ace05b LP |
525 | "_BOOT_ID=%s\n", |
526 | cursor, | |
de0671ee ZJS |
527 | realtime, |
528 | monotonic, | |
08ace05b | 529 | sd_id128_to_string(boot_id, sid)); |
86aa7ba4 | 530 | |
a72b6353 | 531 | JOURNAL_FOREACH_DATA_RETVAL(j, data, length, r) { |
86aa7ba4 | 532 | |
112301ae LP |
533 | /* We already printed the boot id, from the data in |
534 | * the header, hence let's suppress it here */ | |
535 | if (length >= 9 && | |
2a0e0692 | 536 | startswith(data, "_BOOT_ID=")) |
112301ae LP |
537 | continue; |
538 | ||
0ade5ffe ZJS |
539 | if (utf8_is_printable_newline(data, length, false)) |
540 | fwrite(data, length, 1, f); | |
541 | else { | |
86aa7ba4 LP |
542 | const char *c; |
543 | uint64_t le64; | |
544 | ||
545 | c = memchr(data, '=', length); | |
546 | if (!c) { | |
547 | log_error("Invalid field."); | |
548 | return -EINVAL; | |
549 | } | |
550 | ||
08ace05b LP |
551 | fwrite(data, c - (const char*) data, 1, f); |
552 | fputc('\n', f); | |
86aa7ba4 | 553 | le64 = htole64(length - (c - (const char*) data) - 1); |
08ace05b LP |
554 | fwrite(&le64, sizeof(le64), 1, f); |
555 | fwrite(c + 1, length - (c - (const char*) data) - 1, 1, f); | |
0ade5ffe | 556 | } |
86aa7ba4 | 557 | |
08ace05b | 558 | fputc('\n', f); |
86aa7ba4 LP |
559 | } |
560 | ||
a72b6353 ZJS |
561 | if (r < 0) |
562 | return r; | |
563 | ||
08ace05b | 564 | fputc('\n', f); |
86aa7ba4 LP |
565 | |
566 | return 0; | |
567 | } | |
568 | ||
240a5fe8 | 569 | void json_escape( |
08ace05b LP |
570 | FILE *f, |
571 | const char* p, | |
572 | size_t l, | |
573 | OutputFlags flags) { | |
574 | ||
575 | assert(f); | |
576 | assert(p); | |
577 | ||
93b73b06 | 578 | if (!(flags & OUTPUT_SHOW_ALL) && l >= JSON_THRESHOLD) |
08ace05b LP |
579 | |
580 | fputs("null", f); | |
581 | ||
31f7bf19 | 582 | else if (!utf8_is_printable(p, l)) { |
86aa7ba4 LP |
583 | bool not_first = false; |
584 | ||
08ace05b | 585 | fputs("[ ", f); |
86aa7ba4 LP |
586 | |
587 | while (l > 0) { | |
588 | if (not_first) | |
08ace05b | 589 | fprintf(f, ", %u", (uint8_t) *p); |
86aa7ba4 LP |
590 | else { |
591 | not_first = true; | |
08ace05b | 592 | fprintf(f, "%u", (uint8_t) *p); |
86aa7ba4 LP |
593 | } |
594 | ||
595 | p++; | |
596 | l--; | |
597 | } | |
598 | ||
08ace05b | 599 | fputs(" ]", f); |
86aa7ba4 | 600 | } else { |
08ace05b | 601 | fputc('\"', f); |
86aa7ba4 LP |
602 | |
603 | while (l > 0) { | |
604 | if (*p == '"' || *p == '\\') { | |
08ace05b LP |
605 | fputc('\\', f); |
606 | fputc(*p, f); | |
31f7bf19 ZJS |
607 | } else if (*p == '\n') |
608 | fputs("\\n", f); | |
609 | else if (*p < ' ') | |
08ace05b LP |
610 | fprintf(f, "\\u%04x", *p); |
611 | else | |
612 | fputc(*p, f); | |
86aa7ba4 LP |
613 | |
614 | p++; | |
615 | l--; | |
616 | } | |
617 | ||
08ace05b | 618 | fputc('\"', f); |
86aa7ba4 LP |
619 | } |
620 | } | |
621 | ||
08ace05b LP |
622 | static int output_json( |
623 | FILE *f, | |
624 | sd_journal *j, | |
625 | OutputMode mode, | |
626 | unsigned n_columns, | |
627 | OutputFlags flags) { | |
628 | ||
86aa7ba4 | 629 | uint64_t realtime, monotonic; |
7fd1b19b | 630 | _cleanup_free_ char *cursor = NULL; |
86aa7ba4 LP |
631 | const void *data; |
632 | size_t length; | |
633 | sd_id128_t boot_id; | |
2e729834 | 634 | char sid[33], *k; |
86aa7ba4 | 635 | int r; |
d99ae53a LP |
636 | Hashmap *h = NULL; |
637 | bool done, separator; | |
86aa7ba4 LP |
638 | |
639 | assert(j); | |
640 | ||
93b73b06 LP |
641 | sd_journal_set_data_threshold(j, flags & OUTPUT_SHOW_ALL ? 0 : JSON_THRESHOLD); |
642 | ||
86aa7ba4 | 643 | r = sd_journal_get_realtime_usec(j, &realtime); |
f647962d MS |
644 | if (r < 0) |
645 | return log_error_errno(r, "Failed to get realtime timestamp: %m"); | |
86aa7ba4 LP |
646 | |
647 | r = sd_journal_get_monotonic_usec(j, &monotonic, &boot_id); | |
f647962d MS |
648 | if (r < 0) |
649 | return log_error_errno(r, "Failed to get monotonic timestamp: %m"); | |
86aa7ba4 LP |
650 | |
651 | r = sd_journal_get_cursor(j, &cursor); | |
f647962d MS |
652 | if (r < 0) |
653 | return log_error_errno(r, "Failed to get cursor: %m"); | |
86aa7ba4 | 654 | |
a6e87e90 | 655 | if (mode == OUTPUT_JSON_PRETTY) |
08ace05b LP |
656 | fprintf(f, |
657 | "{\n" | |
658 | "\t\"__CURSOR\" : \"%s\",\n" | |
de0671ee ZJS |
659 | "\t\"__REALTIME_TIMESTAMP\" : \""USEC_FMT"\",\n" |
660 | "\t\"__MONOTONIC_TIMESTAMP\" : \""USEC_FMT"\",\n" | |
08ace05b LP |
661 | "\t\"_BOOT_ID\" : \"%s\"", |
662 | cursor, | |
de0671ee ZJS |
663 | realtime, |
664 | monotonic, | |
08ace05b | 665 | sd_id128_to_string(boot_id, sid)); |
48383c25 LP |
666 | else { |
667 | if (mode == OUTPUT_JSON_SSE) | |
668 | fputs("data: ", f); | |
669 | ||
08ace05b LP |
670 | fprintf(f, |
671 | "{ \"__CURSOR\" : \"%s\", " | |
de0671ee ZJS |
672 | "\"__REALTIME_TIMESTAMP\" : \""USEC_FMT"\", " |
673 | "\"__MONOTONIC_TIMESTAMP\" : \""USEC_FMT"\", " | |
08ace05b LP |
674 | "\"_BOOT_ID\" : \"%s\"", |
675 | cursor, | |
de0671ee ZJS |
676 | realtime, |
677 | monotonic, | |
08ace05b | 678 | sd_id128_to_string(boot_id, sid)); |
48383c25 | 679 | } |
86aa7ba4 | 680 | |
d5099efc | 681 | h = hashmap_new(&string_hash_ops); |
d99ae53a LP |
682 | if (!h) |
683 | return -ENOMEM; | |
684 | ||
685 | /* First round, iterate through the entry and count how often each field appears */ | |
a72b6353 | 686 | JOURNAL_FOREACH_DATA_RETVAL(j, data, length, r) { |
d99ae53a LP |
687 | const char *eq; |
688 | char *n; | |
689 | unsigned u; | |
86aa7ba4 | 690 | |
112301ae LP |
691 | if (length >= 9 && |
692 | memcmp(data, "_BOOT_ID=", 9) == 0) | |
693 | continue; | |
694 | ||
d99ae53a LP |
695 | eq = memchr(data, '=', length); |
696 | if (!eq) | |
697 | continue; | |
86aa7ba4 | 698 | |
d99ae53a LP |
699 | n = strndup(data, eq - (const char*) data); |
700 | if (!n) { | |
701 | r = -ENOMEM; | |
702 | goto finish; | |
703 | } | |
a6e87e90 | 704 | |
d99ae53a LP |
705 | u = PTR_TO_UINT(hashmap_get(h, n)); |
706 | if (u == 0) { | |
707 | r = hashmap_put(h, n, UINT_TO_PTR(1)); | |
708 | if (r < 0) { | |
709 | free(n); | |
710 | goto finish; | |
711 | } | |
712 | } else { | |
713 | r = hashmap_update(h, n, UINT_TO_PTR(u + 1)); | |
714 | free(n); | |
715 | if (r < 0) | |
716 | goto finish; | |
717 | } | |
86aa7ba4 LP |
718 | } |
719 | ||
a72b6353 ZJS |
720 | if (r < 0) |
721 | return r; | |
722 | ||
d99ae53a LP |
723 | separator = true; |
724 | do { | |
725 | done = true; | |
726 | ||
727 | SD_JOURNAL_FOREACH_DATA(j, data, length) { | |
728 | const char *eq; | |
729 | char *kk, *n; | |
730 | size_t m; | |
731 | unsigned u; | |
732 | ||
733 | /* We already printed the boot id, from the data in | |
734 | * the header, hence let's suppress it here */ | |
735 | if (length >= 9 && | |
736 | memcmp(data, "_BOOT_ID=", 9) == 0) | |
737 | continue; | |
738 | ||
739 | eq = memchr(data, '=', length); | |
740 | if (!eq) | |
741 | continue; | |
742 | ||
743 | if (separator) { | |
744 | if (mode == OUTPUT_JSON_PRETTY) | |
745 | fputs(",\n\t", f); | |
746 | else | |
747 | fputs(", ", f); | |
748 | } | |
749 | ||
750 | m = eq - (const char*) data; | |
751 | ||
752 | n = strndup(data, m); | |
753 | if (!n) { | |
754 | r = -ENOMEM; | |
755 | goto finish; | |
756 | } | |
757 | ||
758 | u = PTR_TO_UINT(hashmap_get2(h, n, (void**) &kk)); | |
759 | if (u == 0) { | |
760 | /* We already printed this, let's jump to the next */ | |
761 | free(n); | |
762 | separator = false; | |
763 | ||
764 | continue; | |
765 | } else if (u == 1) { | |
766 | /* Field only appears once, output it directly */ | |
767 | ||
768 | json_escape(f, data, m, flags); | |
769 | fputs(" : ", f); | |
770 | ||
771 | json_escape(f, eq + 1, length - m - 1, flags); | |
772 | ||
773 | hashmap_remove(h, n); | |
774 | free(kk); | |
775 | free(n); | |
776 | ||
777 | separator = true; | |
778 | ||
779 | continue; | |
780 | ||
781 | } else { | |
782 | /* Field appears multiple times, output it as array */ | |
783 | json_escape(f, data, m, flags); | |
784 | fputs(" : [ ", f); | |
785 | json_escape(f, eq + 1, length - m - 1, flags); | |
786 | ||
787 | /* Iterate through the end of the list */ | |
788 | ||
789 | while (sd_journal_enumerate_data(j, &data, &length) > 0) { | |
790 | if (length < m + 1) | |
791 | continue; | |
792 | ||
793 | if (memcmp(data, n, m) != 0) | |
794 | continue; | |
795 | ||
796 | if (((const char*) data)[m] != '=') | |
797 | continue; | |
798 | ||
799 | fputs(", ", f); | |
800 | json_escape(f, (const char*) data + m + 1, length - m - 1, flags); | |
801 | } | |
802 | ||
803 | fputs(" ]", f); | |
804 | ||
805 | hashmap_remove(h, n); | |
806 | free(kk); | |
807 | free(n); | |
808 | ||
809 | /* Iterate data fields form the beginning */ | |
810 | done = false; | |
811 | separator = true; | |
812 | ||
813 | break; | |
814 | } | |
815 | } | |
816 | ||
817 | } while (!done); | |
818 | ||
a6e87e90 | 819 | if (mode == OUTPUT_JSON_PRETTY) |
08ace05b | 820 | fputs("\n}\n", f); |
48383c25 LP |
821 | else if (mode == OUTPUT_JSON_SSE) |
822 | fputs("}\n\n", f); | |
a6e87e90 | 823 | else |
08ace05b | 824 | fputs(" }\n", f); |
86aa7ba4 | 825 | |
d99ae53a LP |
826 | r = 0; |
827 | ||
828 | finish: | |
829 | while ((k = hashmap_steal_first_key(h))) | |
830 | free(k); | |
831 | ||
832 | hashmap_free(h); | |
833 | ||
834 | return r; | |
86aa7ba4 LP |
835 | } |
836 | ||
08ace05b LP |
837 | static int output_cat( |
838 | FILE *f, | |
839 | sd_journal *j, | |
840 | OutputMode mode, | |
841 | unsigned n_columns, | |
842 | OutputFlags flags) { | |
843 | ||
d3f2bdbf LP |
844 | const void *data; |
845 | size_t l; | |
846 | int r; | |
847 | ||
848 | assert(j); | |
08ace05b | 849 | assert(f); |
d3f2bdbf | 850 | |
93b73b06 LP |
851 | sd_journal_set_data_threshold(j, 0); |
852 | ||
d3f2bdbf LP |
853 | r = sd_journal_get_data(j, "MESSAGE", &data, &l); |
854 | if (r < 0) { | |
c198300f LP |
855 | /* An entry without MESSAGE=? */ |
856 | if (r == -ENOENT) | |
857 | return 0; | |
858 | ||
8d3d7072 | 859 | return log_error_errno(r, "Failed to get data: %m"); |
d3f2bdbf LP |
860 | } |
861 | ||
862 | assert(l >= 8); | |
863 | ||
08ace05b LP |
864 | fwrite((const char*) data + 8, 1, l - 8, f); |
865 | fputc('\n', f); | |
d3f2bdbf LP |
866 | |
867 | return 0; | |
868 | } | |
869 | ||
08ace05b LP |
870 | static int (*output_funcs[_OUTPUT_MODE_MAX])( |
871 | FILE *f, | |
872 | sd_journal*j, | |
873 | OutputMode mode, | |
874 | unsigned n_columns, | |
875 | OutputFlags flags) = { | |
876 | ||
a6e87e90 | 877 | [OUTPUT_SHORT] = output_short, |
44bc6e1f | 878 | [OUTPUT_SHORT_ISO] = output_short, |
f02d8367 ZJS |
879 | [OUTPUT_SHORT_PRECISE] = output_short, |
880 | [OUTPUT_SHORT_MONOTONIC] = output_short, | |
86aa7ba4 LP |
881 | [OUTPUT_VERBOSE] = output_verbose, |
882 | [OUTPUT_EXPORT] = output_export, | |
d3f2bdbf | 883 | [OUTPUT_JSON] = output_json, |
a6e87e90 | 884 | [OUTPUT_JSON_PRETTY] = output_json, |
48383c25 | 885 | [OUTPUT_JSON_SSE] = output_json, |
d3f2bdbf | 886 | [OUTPUT_CAT] = output_cat |
86aa7ba4 LP |
887 | }; |
888 | ||
08ace05b LP |
889 | int output_journal( |
890 | FILE *f, | |
891 | sd_journal *j, | |
892 | OutputMode mode, | |
893 | unsigned n_columns, | |
94e0bd7d ZJS |
894 | OutputFlags flags, |
895 | bool *ellipsized) { | |
08ace05b | 896 | |
e268b81e | 897 | int ret; |
df50185b | 898 | assert(mode >= 0); |
86aa7ba4 LP |
899 | assert(mode < _OUTPUT_MODE_MAX); |
900 | ||
34a35ece LP |
901 | if (n_columns <= 0) |
902 | n_columns = columns(); | |
903 | ||
08ace05b | 904 | ret = output_funcs[mode](f, j, mode, n_columns, flags); |
e268b81e | 905 | fflush(stdout); |
94e0bd7d ZJS |
906 | |
907 | if (ellipsized && ret > 0) | |
908 | *ellipsized = true; | |
909 | ||
e268b81e | 910 | return ret; |
86aa7ba4 LP |
911 | } |
912 | ||
ea6c2dd1 LP |
913 | static int maybe_print_begin_newline(FILE *f, OutputFlags *flags) { |
914 | assert(f); | |
915 | assert(flags); | |
916 | ||
917 | if (!(*flags & OUTPUT_BEGIN_NEWLINE)) | |
918 | return 0; | |
919 | ||
920 | /* Print a beginning new line if that's request, but only once | |
921 | * on the first line we print. */ | |
922 | ||
923 | fputc('\n', f); | |
924 | *flags &= ~OUTPUT_BEGIN_NEWLINE; | |
925 | return 0; | |
926 | } | |
927 | ||
1a6c43e9 MT |
928 | static int show_journal(FILE *f, |
929 | sd_journal *j, | |
930 | OutputMode mode, | |
931 | unsigned n_columns, | |
932 | usec_t not_before, | |
933 | unsigned how_many, | |
94e0bd7d ZJS |
934 | OutputFlags flags, |
935 | bool *ellipsized) { | |
86aa7ba4 | 936 | |
86aa7ba4 | 937 | int r; |
df50185b LP |
938 | unsigned line = 0; |
939 | bool need_seek = false; | |
085d7120 | 940 | int warn_cutoff = flags & OUTPUT_WARN_CUTOFF; |
86aa7ba4 | 941 | |
1a6c43e9 | 942 | assert(j); |
df50185b LP |
943 | assert(mode >= 0); |
944 | assert(mode < _OUTPUT_MODE_MAX); | |
1946b0bd LP |
945 | |
946 | /* Seek to end */ | |
86aa7ba4 LP |
947 | r = sd_journal_seek_tail(j); |
948 | if (r < 0) | |
949 | goto finish; | |
950 | ||
df50185b LP |
951 | r = sd_journal_previous_skip(j, how_many); |
952 | if (r < 0) | |
953 | goto finish; | |
86aa7ba4 | 954 | |
df50185b LP |
955 | for (;;) { |
956 | for (;;) { | |
957 | usec_t usec; | |
958 | ||
959 | if (need_seek) { | |
960 | r = sd_journal_next(j); | |
961 | if (r < 0) | |
962 | goto finish; | |
963 | } | |
964 | ||
965 | if (r == 0) | |
966 | break; | |
86aa7ba4 | 967 | |
df50185b LP |
968 | need_seek = true; |
969 | ||
970 | if (not_before > 0) { | |
971 | r = sd_journal_get_monotonic_usec(j, &usec, NULL); | |
972 | ||
973 | /* -ESTALE is returned if the | |
974 | timestamp is not from this boot */ | |
975 | if (r == -ESTALE) | |
976 | continue; | |
977 | else if (r < 0) | |
978 | goto finish; | |
979 | ||
980 | if (usec < not_before) | |
981 | continue; | |
982 | } | |
983 | ||
984 | line ++; | |
ea6c2dd1 | 985 | maybe_print_begin_newline(f, &flags); |
df50185b | 986 | |
94e0bd7d | 987 | r = output_journal(f, j, mode, n_columns, flags, ellipsized); |
df50185b LP |
988 | if (r < 0) |
989 | goto finish; | |
990 | } | |
991 | ||
08984293 LP |
992 | if (warn_cutoff && line < how_many && not_before > 0) { |
993 | sd_id128_t boot_id; | |
a7f7d1bd | 994 | usec_t cutoff = 0; |
08984293 LP |
995 | |
996 | /* Check whether the cutoff line is too early */ | |
997 | ||
998 | r = sd_id128_get_boot(&boot_id); | |
999 | if (r < 0) | |
1000 | goto finish; | |
1001 | ||
1002 | r = sd_journal_get_cutoff_monotonic_usec(j, boot_id, &cutoff, NULL); | |
1003 | if (r < 0) | |
1004 | goto finish; | |
1005 | ||
ea6c2dd1 LP |
1006 | if (r > 0 && not_before < cutoff) { |
1007 | maybe_print_begin_newline(f, &flags); | |
08ace05b | 1008 | fprintf(f, "Warning: Journal has been rotated since unit was started. Log output is incomplete or unavailable.\n"); |
ea6c2dd1 | 1009 | } |
08984293 LP |
1010 | |
1011 | warn_cutoff = false; | |
1012 | } | |
1013 | ||
085d7120 | 1014 | if (!(flags & OUTPUT_FOLLOW)) |
86aa7ba4 LP |
1015 | break; |
1016 | ||
3a43da28 | 1017 | r = sd_journal_wait(j, USEC_INFINITY); |
df50185b LP |
1018 | if (r < 0) |
1019 | goto finish; | |
1020 | ||
86aa7ba4 LP |
1021 | } |
1022 | ||
1a6c43e9 MT |
1023 | finish: |
1024 | return r; | |
1025 | } | |
1026 | ||
886a64fe | 1027 | int add_matches_for_unit(sd_journal *j, const char *unit) { |
1a6c43e9 | 1028 | int r; |
2d0b2e87 | 1029 | char *m1, *m2, *m3, *m4; |
1a6c43e9 | 1030 | |
886a64fe | 1031 | assert(j); |
1a6c43e9 MT |
1032 | assert(unit); |
1033 | ||
63c372cb LP |
1034 | m1 = strjoina("_SYSTEMD_UNIT=", unit); |
1035 | m2 = strjoina("COREDUMP_UNIT=", unit); | |
1036 | m3 = strjoina("UNIT=", unit); | |
1037 | m4 = strjoina("OBJECT_SYSTEMD_UNIT=", unit); | |
1a6c43e9 | 1038 | |
886a64fe ZJS |
1039 | (void)( |
1040 | /* Look for messages from the service itself */ | |
1041 | (r = sd_journal_add_match(j, m1, 0)) || | |
1042 | ||
1043 | /* Look for coredumps of the service */ | |
1044 | (r = sd_journal_add_disjunction(j)) || | |
fdcd37df ZJS |
1045 | (r = sd_journal_add_match(j, "MESSAGE_ID=fc2e22bc6ee647b6b90729ab34a250b1", 0)) || |
1046 | (r = sd_journal_add_match(j, "_UID=0", 0)) || | |
886a64fe ZJS |
1047 | (r = sd_journal_add_match(j, m2, 0)) || |
1048 | ||
1049 | /* Look for messages from PID 1 about this service */ | |
1050 | (r = sd_journal_add_disjunction(j)) || | |
1051 | (r = sd_journal_add_match(j, "_PID=1", 0)) || | |
2d0b2e87 ZJS |
1052 | (r = sd_journal_add_match(j, m3, 0)) || |
1053 | ||
1054 | /* Look for messages from authorized daemons about this service */ | |
1055 | (r = sd_journal_add_disjunction(j)) || | |
1056 | (r = sd_journal_add_match(j, "_UID=0", 0)) || | |
1057 | (r = sd_journal_add_match(j, m4, 0)) | |
886a64fe | 1058 | ); |
2d0b2e87 | 1059 | |
69ae3ee0 ZJS |
1060 | if (r == 0 && endswith(unit, ".slice")) { |
1061 | char *m5 = strappend("_SYSTEMD_SLICE=", unit); | |
1062 | ||
1063 | /* Show all messages belonging to a slice */ | |
1064 | (void)( | |
1065 | (r = sd_journal_add_disjunction(j)) || | |
1066 | (r = sd_journal_add_match(j, m5, 0)) | |
1067 | ); | |
1068 | } | |
1069 | ||
886a64fe ZJS |
1070 | return r; |
1071 | } | |
1a6c43e9 | 1072 | |
886a64fe ZJS |
1073 | int add_matches_for_user_unit(sd_journal *j, const char *unit, uid_t uid) { |
1074 | int r; | |
2d0b2e87 ZJS |
1075 | char *m1, *m2, *m3, *m4; |
1076 | char muid[sizeof("_UID=") + DECIMAL_STR_MAX(uid_t)]; | |
1a6c43e9 | 1077 | |
886a64fe ZJS |
1078 | assert(j); |
1079 | assert(unit); | |
1a6c43e9 | 1080 | |
63c372cb LP |
1081 | m1 = strjoina("_SYSTEMD_USER_UNIT=", unit); |
1082 | m2 = strjoina("USER_UNIT=", unit); | |
1083 | m3 = strjoina("COREDUMP_USER_UNIT=", unit); | |
1084 | m4 = strjoina("OBJECT_SYSTEMD_USER_UNIT=", unit); | |
de0671ee | 1085 | sprintf(muid, "_UID="UID_FMT, uid); |
1a6c43e9 | 1086 | |
886a64fe ZJS |
1087 | (void) ( |
1088 | /* Look for messages from the user service itself */ | |
1089 | (r = sd_journal_add_match(j, m1, 0)) || | |
2d0b2e87 | 1090 | (r = sd_journal_add_match(j, muid, 0)) || |
886a64fe ZJS |
1091 | |
1092 | /* Look for messages from systemd about this service */ | |
1093 | (r = sd_journal_add_disjunction(j)) || | |
1094 | (r = sd_journal_add_match(j, m2, 0)) || | |
2d0b2e87 | 1095 | (r = sd_journal_add_match(j, muid, 0)) || |
886a64fe ZJS |
1096 | |
1097 | /* Look for coredumps of the service */ | |
1098 | (r = sd_journal_add_disjunction(j)) || | |
1099 | (r = sd_journal_add_match(j, m3, 0)) || | |
2d0b2e87 ZJS |
1100 | (r = sd_journal_add_match(j, muid, 0)) || |
1101 | (r = sd_journal_add_match(j, "_UID=0", 0)) || | |
1102 | ||
1103 | /* Look for messages from authorized daemons about this service */ | |
1104 | (r = sd_journal_add_disjunction(j)) || | |
fdcd37df | 1105 | (r = sd_journal_add_match(j, m4, 0)) || |
2d0b2e87 | 1106 | (r = sd_journal_add_match(j, muid, 0)) || |
fdcd37df | 1107 | (r = sd_journal_add_match(j, "_UID=0", 0)) |
886a64fe | 1108 | ); |
69ae3ee0 ZJS |
1109 | |
1110 | if (r == 0 && endswith(unit, ".slice")) { | |
1111 | char *m5 = strappend("_SYSTEMD_SLICE=", unit); | |
1112 | ||
1113 | /* Show all messages belonging to a slice */ | |
1114 | (void)( | |
1115 | (r = sd_journal_add_disjunction(j)) || | |
1116 | (r = sd_journal_add_match(j, m5, 0)) || | |
1117 | (r = sd_journal_add_match(j, muid, 0)) | |
1118 | ); | |
1119 | } | |
1120 | ||
1a6c43e9 MT |
1121 | return r; |
1122 | } | |
1123 | ||
b6741478 | 1124 | static int get_boot_id_for_machine(const char *machine, sd_id128_t *boot_id) { |
3d94f76c | 1125 | _cleanup_close_pair_ int pair[2] = { -1, -1 }; |
a4475f57 | 1126 | _cleanup_close_ int pidnsfd = -1, mntnsfd = -1, rootfd = -1; |
b6741478 LP |
1127 | pid_t pid, child; |
1128 | siginfo_t si; | |
1129 | char buf[37]; | |
1130 | ssize_t k; | |
1131 | int r; | |
1132 | ||
1133 | assert(machine); | |
1134 | assert(boot_id); | |
1135 | ||
affcf189 | 1136 | if (!machine_name_is_valid(machine)) |
b6741478 LP |
1137 | return -EINVAL; |
1138 | ||
e04b0cdb | 1139 | r = container_get_leader(machine, &pid); |
b6741478 LP |
1140 | if (r < 0) |
1141 | return r; | |
e04b0cdb | 1142 | |
878cd7e9 | 1143 | r = namespace_open(pid, &pidnsfd, &mntnsfd, NULL, &rootfd); |
b6741478 LP |
1144 | if (r < 0) |
1145 | return r; | |
1146 | ||
e04b0cdb | 1147 | if (socketpair(AF_UNIX, SOCK_DGRAM, 0, pair) < 0) |
b6741478 LP |
1148 | return -errno; |
1149 | ||
1150 | child = fork(); | |
1151 | if (child < 0) | |
1152 | return -errno; | |
1153 | ||
1154 | if (child == 0) { | |
1155 | int fd; | |
1156 | ||
03e334a1 | 1157 | pair[0] = safe_close(pair[0]); |
b6741478 | 1158 | |
878cd7e9 | 1159 | r = namespace_enter(pidnsfd, mntnsfd, -1, rootfd); |
b6741478 LP |
1160 | if (r < 0) |
1161 | _exit(EXIT_FAILURE); | |
1162 | ||
1163 | fd = open("/proc/sys/kernel/random/boot_id", O_RDONLY|O_CLOEXEC|O_NOCTTY); | |
1164 | if (fd < 0) | |
1165 | _exit(EXIT_FAILURE); | |
1166 | ||
a6dcc7e5 | 1167 | r = loop_read_exact(fd, buf, 36, false); |
03e334a1 | 1168 | safe_close(fd); |
6c767d1e | 1169 | if (r < 0) |
b6741478 LP |
1170 | _exit(EXIT_FAILURE); |
1171 | ||
e04b0cdb | 1172 | k = send(pair[1], buf, 36, MSG_NOSIGNAL); |
b6741478 LP |
1173 | if (k != 36) |
1174 | _exit(EXIT_FAILURE); | |
1175 | ||
1176 | _exit(EXIT_SUCCESS); | |
1177 | } | |
1178 | ||
03e334a1 | 1179 | pair[1] = safe_close(pair[1]); |
b6741478 | 1180 | |
b6741478 LP |
1181 | r = wait_for_terminate(child, &si); |
1182 | if (r < 0 || si.si_code != CLD_EXITED || si.si_status != EXIT_SUCCESS) | |
1183 | return r < 0 ? r : -EIO; | |
1184 | ||
fbadf045 LP |
1185 | k = recv(pair[0], buf, 36, 0); |
1186 | if (k != 36) | |
1187 | return -EIO; | |
1188 | ||
b6741478 LP |
1189 | buf[36] = 0; |
1190 | r = sd_id128_from_string(buf, boot_id); | |
1191 | if (r < 0) | |
1192 | return r; | |
1193 | ||
1194 | return 0; | |
1195 | } | |
1196 | ||
1197 | int add_match_this_boot(sd_journal *j, const char *machine) { | |
5ec76417 ZJS |
1198 | char match[9+32+1] = "_BOOT_ID="; |
1199 | sd_id128_t boot_id; | |
1200 | int r; | |
1201 | ||
1202 | assert(j); | |
1203 | ||
b6741478 LP |
1204 | if (machine) { |
1205 | r = get_boot_id_for_machine(machine, &boot_id); | |
f647962d MS |
1206 | if (r < 0) |
1207 | return log_error_errno(r, "Failed to get boot id of container %s: %m", machine); | |
b6741478 LP |
1208 | } else { |
1209 | r = sd_id128_get_boot(&boot_id); | |
f647962d MS |
1210 | if (r < 0) |
1211 | return log_error_errno(r, "Failed to get boot id: %m"); | |
5ec76417 ZJS |
1212 | } |
1213 | ||
1214 | sd_id128_to_string(boot_id, match + 9); | |
1215 | r = sd_journal_add_match(j, match, strlen(match)); | |
f647962d MS |
1216 | if (r < 0) |
1217 | return log_error_errno(r, "Failed to add match: %m"); | |
5ec76417 ZJS |
1218 | |
1219 | r = sd_journal_add_conjunction(j); | |
1220 | if (r < 0) | |
1221 | return r; | |
1222 | ||
1223 | return 0; | |
1224 | } | |
1225 | ||
886a64fe | 1226 | int show_journal_by_unit( |
1a6c43e9 MT |
1227 | FILE *f, |
1228 | const char *unit, | |
1229 | OutputMode mode, | |
1230 | unsigned n_columns, | |
1231 | usec_t not_before, | |
1232 | unsigned how_many, | |
1233 | uid_t uid, | |
886a64fe | 1234 | OutputFlags flags, |
3c756001 LP |
1235 | int journal_open_flags, |
1236 | bool system_unit, | |
94e0bd7d | 1237 | bool *ellipsized) { |
1a6c43e9 | 1238 | |
7fd1b19b | 1239 | _cleanup_journal_close_ sd_journal*j = NULL; |
1a6c43e9 MT |
1240 | int r; |
1241 | ||
1242 | assert(mode >= 0); | |
1243 | assert(mode < _OUTPUT_MODE_MAX); | |
1244 | assert(unit); | |
1245 | ||
1a6c43e9 MT |
1246 | if (how_many <= 0) |
1247 | return 0; | |
1248 | ||
3c756001 | 1249 | r = sd_journal_open(&j, journal_open_flags); |
f9045468 | 1250 | if (r < 0) |
763c7aa2 | 1251 | return r; |
f9045468 | 1252 | |
b6741478 | 1253 | r = add_match_this_boot(j, NULL); |
5ec76417 ZJS |
1254 | if (r < 0) |
1255 | return r; | |
1256 | ||
3c756001 | 1257 | if (system_unit) |
886a64fe ZJS |
1258 | r = add_matches_for_unit(j, unit); |
1259 | else | |
1260 | r = add_matches_for_user_unit(j, unit, uid); | |
1a6c43e9 | 1261 | if (r < 0) |
763c7aa2 | 1262 | return r; |
1a6c43e9 | 1263 | |
553d2243 | 1264 | if (_unlikely_(log_get_max_level() >= LOG_DEBUG)) { |
4ad16808 ZJS |
1265 | _cleanup_free_ char *filter; |
1266 | ||
1267 | filter = journal_make_match_string(j); | |
1268 | log_debug("Journal filter: %s", filter); | |
1269 | } | |
5ec76417 | 1270 | |
94e0bd7d | 1271 | return show_journal(f, j, mode, n_columns, not_before, how_many, flags, ellipsized); |
86aa7ba4 | 1272 | } |
df50185b LP |
1273 | |
1274 | static const char *const output_mode_table[_OUTPUT_MODE_MAX] = { | |
1275 | [OUTPUT_SHORT] = "short", | |
44bc6e1f | 1276 | [OUTPUT_SHORT_ISO] = "short-iso", |
f02d8367 ZJS |
1277 | [OUTPUT_SHORT_PRECISE] = "short-precise", |
1278 | [OUTPUT_SHORT_MONOTONIC] = "short-monotonic", | |
df50185b LP |
1279 | [OUTPUT_VERBOSE] = "verbose", |
1280 | [OUTPUT_EXPORT] = "export", | |
d3f2bdbf | 1281 | [OUTPUT_JSON] = "json", |
a6e87e90 | 1282 | [OUTPUT_JSON_PRETTY] = "json-pretty", |
48383c25 | 1283 | [OUTPUT_JSON_SSE] = "json-sse", |
d3f2bdbf | 1284 | [OUTPUT_CAT] = "cat" |
df50185b LP |
1285 | }; |
1286 | ||
1287 | DEFINE_STRING_TABLE_LOOKUP(output_mode, OutputMode); |