Commit | Line | Data |
---|---|---|
fc93b2bd MD |
1 | /* |
2 | * BabelTrace - Common Trace Format (CTF) | |
3 | * | |
4 | * Format registration. | |
5 | * | |
c054553d | 6 | * Copyright 2010, 2011 - Mathieu Desnoyers <mathieu.desnoyers@efficios.com> |
fc93b2bd | 7 | * |
ccd7e1c8 MD |
8 | * Permission is hereby granted, free of charge, to any person obtaining a copy |
9 | * of this software and associated documentation files (the "Software"), to deal | |
10 | * in the Software without restriction, including without limitation the rights | |
11 | * to use, copy, modify, merge, publish, distribute, sublicense, and/or sell | |
12 | * copies of the Software, and to permit persons to whom the Software is | |
13 | * furnished to do so, subject to the following conditions: | |
fc93b2bd | 14 | * |
ccd7e1c8 MD |
15 | * The above copyright notice and this permission notice shall be included in |
16 | * all copies or substantial portions of the Software. | |
fc93b2bd MD |
17 | */ |
18 | ||
19 | #include <babeltrace/format.h> | |
20 | #include <babeltrace/ctf/types.h> | |
bbefb8dd | 21 | #include <babeltrace/ctf/metadata.h> |
65102a8c | 22 | #include <babeltrace/babeltrace.h> |
0f980a35 | 23 | #include <inttypes.h> |
b4c19c1e | 24 | #include <stdio.h> |
0f980a35 MD |
25 | #include <uuid/uuid.h> |
26 | #include <sys/mman.h> | |
bbefb8dd | 27 | #include <errno.h> |
b4c19c1e | 28 | #include <endian.h> |
bbefb8dd | 29 | #include <sys/types.h> |
65102a8c | 30 | #include <sys/stat.h> |
bbefb8dd | 31 | #include <fcntl.h> |
65102a8c | 32 | #include <dirent.h> |
bbefb8dd | 33 | #include <glib.h> |
65102a8c MD |
34 | #include <unistd.h> |
35 | #include <stdlib.h> | |
36 | ||
65102a8c MD |
37 | #include "metadata/ctf-scanner.h" |
38 | #include "metadata/ctf-parser.h" | |
39 | #include "metadata/ctf-ast.h" | |
40 | ||
0f980a35 MD |
41 | /* |
42 | * We currently simply map a page to read the packet header and packet | |
8c572eba | 43 | * context to get the packet length and content length. (in bits) |
0f980a35 | 44 | */ |
8c572eba MD |
45 | #define MAX_PACKET_HEADER_LEN (getpagesize() * CHAR_BIT) |
46 | #define WRITE_PACKET_LEN (getpagesize() * 8 * CHAR_BIT) | |
0f980a35 MD |
47 | #define UUID_LEN 16 /* uuid by value len */ |
48 | ||
a0fe7d97 MD |
49 | #ifndef min |
50 | #define min(a, b) (((a) < (b)) ? (a) : (b)) | |
51 | #endif | |
52 | ||
65102a8c | 53 | extern int yydebug; |
bbefb8dd | 54 | |
e9378815 | 55 | static |
bbefb8dd | 56 | struct trace_descriptor *ctf_open_trace(const char *path, int flags); |
e9378815 | 57 | static |
bbefb8dd | 58 | void ctf_close_trace(struct trace_descriptor *descriptor); |
fc93b2bd | 59 | |
1ae19169 MD |
60 | static |
61 | rw_dispatch read_dispatch_table[] = { | |
d11e9c49 MD |
62 | [ CTF_TYPE_INTEGER ] = ctf_integer_read, |
63 | [ CTF_TYPE_FLOAT ] = ctf_float_read, | |
64 | [ CTF_TYPE_ENUM ] = ctf_enum_read, | |
65 | [ CTF_TYPE_STRING ] = ctf_string_read, | |
66 | [ CTF_TYPE_STRUCT ] = ctf_struct_rw, | |
67 | [ CTF_TYPE_VARIANT ] = ctf_variant_rw, | |
81dee1bb MD |
68 | [ CTF_TYPE_ARRAY ] = ctf_array_read, |
69 | [ CTF_TYPE_SEQUENCE ] = ctf_sequence_read, | |
d11e9c49 MD |
70 | }; |
71 | ||
1ae19169 MD |
72 | static |
73 | rw_dispatch write_dispatch_table[] = { | |
d11e9c49 MD |
74 | [ CTF_TYPE_INTEGER ] = ctf_integer_write, |
75 | [ CTF_TYPE_FLOAT ] = ctf_float_write, | |
76 | [ CTF_TYPE_ENUM ] = ctf_enum_write, | |
77 | [ CTF_TYPE_STRING ] = ctf_string_write, | |
78 | [ CTF_TYPE_STRUCT ] = ctf_struct_rw, | |
79 | [ CTF_TYPE_VARIANT ] = ctf_variant_rw, | |
81dee1bb MD |
80 | [ CTF_TYPE_ARRAY ] = ctf_array_write, |
81 | [ CTF_TYPE_SEQUENCE ] = ctf_sequence_write, | |
d11e9c49 MD |
82 | }; |
83 | ||
1ae19169 | 84 | static |
d11e9c49 | 85 | struct format ctf_format = { |
bbefb8dd MD |
86 | .open_trace = ctf_open_trace, |
87 | .close_trace = ctf_close_trace, | |
fc93b2bd MD |
88 | }; |
89 | ||
2b9a764d MD |
90 | static |
91 | void ctf_update_timestamp(struct ctf_stream *stream, | |
92 | struct definition_integer *integer_definition) | |
93 | { | |
94 | struct declaration_integer *integer_declaration = | |
95 | integer_definition->declaration; | |
96 | uint64_t oldval, newval, updateval; | |
97 | ||
98 | if (integer_declaration->len == 64) { | |
99 | stream->timestamp = integer_definition->value._unsigned; | |
100 | return; | |
101 | } | |
102 | /* keep low bits */ | |
103 | oldval = stream->timestamp; | |
104 | oldval &= (1ULL << integer_declaration->len) - 1; | |
105 | newval = integer_definition->value._unsigned; | |
106 | /* Test for overflow by comparing low bits */ | |
107 | if (newval < oldval) | |
108 | newval += 1ULL << integer_declaration->len; | |
109 | /* updateval contains old high bits, and new low bits (sum) */ | |
110 | updateval = stream->timestamp; | |
111 | updateval &= ~((1ULL << integer_declaration->len) - 1); | |
112 | updateval += newval; | |
113 | stream->timestamp = updateval; | |
114 | } | |
115 | ||
31262354 | 116 | static |
764af3f4 | 117 | int ctf_read_event(struct stream_pos *ppos, struct ctf_stream *stream) |
31262354 MD |
118 | { |
119 | struct ctf_stream_pos *pos = | |
120 | container_of(ppos, struct ctf_stream_pos, parent); | |
764af3f4 | 121 | struct ctf_stream_class *stream_class = stream->stream_class; |
42dc00b7 | 122 | struct ctf_stream_event *event; |
31262354 | 123 | uint64_t id = 0; |
31262354 MD |
124 | int ret; |
125 | ||
126 | if (pos->offset == EOF) | |
127 | return EOF; | |
128 | ||
129 | /* Read event header */ | |
e28d4618 | 130 | if (stream->stream_event_header) { |
a35173fe | 131 | struct definition_integer *integer_definition; |
ccdb988e | 132 | struct definition *variant; |
a35173fe | 133 | |
e28d4618 | 134 | ret = generic_rw(ppos, &stream->stream_event_header->p); |
31262354 MD |
135 | if (ret) |
136 | goto error; | |
137 | /* lookup event id */ | |
e28d4618 | 138 | integer_definition = lookup_integer(&stream->stream_event_header->p, "id", FALSE); |
a35173fe MD |
139 | if (integer_definition) { |
140 | id = integer_definition->value._unsigned; | |
141 | } else { | |
142 | struct definition_enum *enum_definition; | |
143 | ||
e28d4618 | 144 | enum_definition = lookup_enum(&stream->stream_event_header->p, "id", FALSE); |
a35173fe MD |
145 | if (enum_definition) { |
146 | id = enum_definition->integer->value._unsigned; | |
147 | } | |
31262354 | 148 | } |
764af3f4 | 149 | |
e28d4618 | 150 | variant = lookup_variant(&stream->stream_event_header->p, "v"); |
ccdb988e MD |
151 | if (variant) { |
152 | integer_definition = lookup_integer(variant, "id", FALSE); | |
153 | if (integer_definition) { | |
154 | id = integer_definition->value._unsigned; | |
155 | } | |
156 | } | |
157 | ||
764af3f4 | 158 | /* lookup timestamp */ |
5e2eb0ae | 159 | stream->has_timestamp = 0; |
e28d4618 | 160 | integer_definition = lookup_integer(&stream->stream_event_header->p, "timestamp", FALSE); |
a35173fe | 161 | if (integer_definition) { |
2b9a764d | 162 | ctf_update_timestamp(stream, integer_definition); |
5e2eb0ae | 163 | stream->has_timestamp = 1; |
a35173fe | 164 | } else { |
ccdb988e MD |
165 | if (variant) { |
166 | integer_definition = lookup_integer(variant, "timestamp", FALSE); | |
a35173fe | 167 | if (integer_definition) { |
2b9a764d | 168 | ctf_update_timestamp(stream, integer_definition); |
5e2eb0ae | 169 | stream->has_timestamp = 1; |
a35173fe MD |
170 | } |
171 | } | |
764af3f4 | 172 | } |
31262354 MD |
173 | } |
174 | ||
175 | /* Read stream-declared event context */ | |
e28d4618 MD |
176 | if (stream->stream_event_context) { |
177 | ret = generic_rw(ppos, &stream->stream_event_context->p); | |
31262354 MD |
178 | if (ret) |
179 | goto error; | |
180 | } | |
181 | ||
182 | if (id >= stream_class->events_by_id->len) { | |
183 | fprintf(stdout, "[error] Event id %" PRIu64 " is outside range.\n", id); | |
184 | return -EINVAL; | |
185 | } | |
e28d4618 MD |
186 | event = g_ptr_array_index(stream->events_by_id, id); |
187 | if (!event) { | |
31262354 MD |
188 | fprintf(stdout, "[error] Event id %" PRIu64 " is unknown.\n", id); |
189 | return -EINVAL; | |
190 | } | |
191 | ||
192 | /* Read event-declared event context */ | |
e28d4618 MD |
193 | if (event->event_context) { |
194 | ret = generic_rw(ppos, &event->event_context->p); | |
31262354 MD |
195 | if (ret) |
196 | goto error; | |
197 | } | |
198 | ||
199 | /* Read event payload */ | |
e28d4618 MD |
200 | if (event->event_fields) { |
201 | ret = generic_rw(ppos, &event->event_fields->p); | |
31262354 MD |
202 | if (ret) |
203 | goto error; | |
204 | } | |
205 | ||
206 | return 0; | |
207 | ||
208 | error: | |
209 | fprintf(stdout, "[error] Unexpected end of stream. Either the trace data stream is corrupted or metadata description does not match data layout.\n"); | |
210 | return ret; | |
211 | } | |
212 | ||
213 | static | |
764af3f4 | 214 | int ctf_write_event(struct stream_pos *pos, struct ctf_stream *stream) |
31262354 | 215 | { |
764af3f4 | 216 | struct ctf_stream_class *stream_class = stream->stream_class; |
42dc00b7 | 217 | struct ctf_stream_event *event; |
31262354 | 218 | uint64_t id = 0; |
31262354 MD |
219 | int ret; |
220 | ||
221 | /* print event header */ | |
e28d4618 | 222 | if (stream->stream_event_header) { |
ccdb988e MD |
223 | struct definition_integer *integer_definition; |
224 | struct definition *variant; | |
225 | ||
31262354 | 226 | /* lookup event id */ |
e28d4618 | 227 | integer_definition = lookup_integer(&stream->stream_event_header->p, "id", FALSE); |
ccdb988e MD |
228 | if (integer_definition) { |
229 | id = integer_definition->value._unsigned; | |
230 | } else { | |
231 | struct definition_enum *enum_definition; | |
232 | ||
e28d4618 | 233 | enum_definition = lookup_enum(&stream->stream_event_header->p, "id", FALSE); |
ccdb988e MD |
234 | if (enum_definition) { |
235 | id = enum_definition->integer->value._unsigned; | |
236 | } | |
237 | } | |
238 | ||
e28d4618 | 239 | variant = lookup_variant(&stream->stream_event_header->p, "v"); |
ccdb988e MD |
240 | if (variant) { |
241 | integer_definition = lookup_integer(variant, "id", FALSE); | |
242 | if (integer_definition) { | |
243 | id = integer_definition->value._unsigned; | |
244 | } | |
31262354 MD |
245 | } |
246 | ||
e28d4618 | 247 | ret = generic_rw(pos, &stream->stream_event_header->p); |
31262354 MD |
248 | if (ret) |
249 | goto error; | |
250 | } | |
251 | ||
252 | /* print stream-declared event context */ | |
e28d4618 MD |
253 | if (stream->stream_event_context) { |
254 | ret = generic_rw(pos, &stream->stream_event_context->p); | |
31262354 MD |
255 | if (ret) |
256 | goto error; | |
257 | } | |
258 | ||
259 | if (id >= stream_class->events_by_id->len) { | |
260 | fprintf(stdout, "[error] Event id %" PRIu64 " is outside range.\n", id); | |
261 | return -EINVAL; | |
262 | } | |
e28d4618 MD |
263 | event = g_ptr_array_index(stream->events_by_id, id); |
264 | if (!event) { | |
31262354 MD |
265 | fprintf(stdout, "[error] Event id %" PRIu64 " is unknown.\n", id); |
266 | return -EINVAL; | |
267 | } | |
268 | ||
269 | /* print event-declared event context */ | |
e28d4618 MD |
270 | if (event->event_context) { |
271 | ret = generic_rw(pos, &event->event_context->p); | |
31262354 MD |
272 | if (ret) |
273 | goto error; | |
274 | } | |
275 | ||
276 | /* Read and print event payload */ | |
e28d4618 MD |
277 | if (event->event_fields) { |
278 | ret = generic_rw(pos, &event->event_fields->p); | |
31262354 MD |
279 | if (ret) |
280 | goto error; | |
281 | } | |
282 | ||
283 | return 0; | |
284 | ||
285 | error: | |
286 | fprintf(stdout, "[error] Unexpected end of stream. Either the trace data stream is corrupted or metadata description does not match data layout.\n"); | |
287 | return ret; | |
288 | } | |
289 | ||
8563e754 | 290 | void ctf_init_pos(struct ctf_stream_pos *pos, int fd, int open_flags) |
8c572eba MD |
291 | { |
292 | pos->fd = fd; | |
293 | pos->mmap_offset = 0; | |
294 | pos->packet_size = 0; | |
295 | pos->content_size = 0; | |
296 | pos->content_size_loc = NULL; | |
297 | pos->base = NULL; | |
298 | pos->offset = 0; | |
299 | pos->dummy = false; | |
8c572eba | 300 | pos->cur_index = 0; |
8563e754 MD |
301 | if (fd >= 0) |
302 | pos->packet_index = g_array_new(FALSE, TRUE, | |
303 | sizeof(struct packet_index)); | |
304 | else | |
305 | pos->packet_index = NULL; | |
8563e754 MD |
306 | switch (open_flags & O_ACCMODE) { |
307 | case O_RDONLY: | |
308 | pos->prot = PROT_READ; | |
309 | pos->flags = MAP_PRIVATE; | |
310 | pos->parent.rw_table = read_dispatch_table; | |
31262354 | 311 | pos->parent.event_cb = ctf_read_event; |
8563e754 | 312 | break; |
8563e754 MD |
313 | case O_RDWR: |
314 | pos->prot = PROT_WRITE; /* Write has priority */ | |
315 | pos->flags = MAP_SHARED; | |
316 | pos->parent.rw_table = write_dispatch_table; | |
31262354 | 317 | pos->parent.event_cb = ctf_write_event; |
8563e754 | 318 | if (fd >= 0) |
847bf71a | 319 | ctf_move_pos_slow(pos, 0, SEEK_SET); /* position for write */ |
8563e754 MD |
320 | break; |
321 | default: | |
322 | assert(0); | |
8c572eba MD |
323 | } |
324 | } | |
325 | ||
46322b33 | 326 | void ctf_fini_pos(struct ctf_stream_pos *pos) |
8c572eba MD |
327 | { |
328 | int ret; | |
329 | ||
330 | if (pos->prot == PROT_WRITE && pos->content_size_loc) | |
331 | *pos->content_size_loc = pos->offset; | |
332 | if (pos->base) { | |
333 | /* unmap old base */ | |
334 | ret = munmap(pos->base, pos->packet_size / CHAR_BIT); | |
335 | if (ret) { | |
46322b33 | 336 | fprintf(stdout, "[error] Unable to unmap old base: %s.\n", |
8c572eba MD |
337 | strerror(errno)); |
338 | assert(0); | |
339 | } | |
340 | } | |
341 | (void) g_array_free(pos->packet_index, TRUE); | |
342 | } | |
343 | ||
847bf71a | 344 | void ctf_move_pos_slow(struct ctf_stream_pos *pos, size_t offset, int whence) |
0f980a35 | 345 | { |
75cc2c35 MD |
346 | struct ctf_file_stream *file_stream = |
347 | container_of(pos, struct ctf_file_stream, pos); | |
0f980a35 | 348 | int ret; |
8c572eba MD |
349 | off_t off; |
350 | struct packet_index *index; | |
0f980a35 | 351 | |
8c572eba MD |
352 | if (pos->prot == PROT_WRITE && pos->content_size_loc) |
353 | *pos->content_size_loc = pos->offset; | |
0f980a35 MD |
354 | |
355 | if (pos->base) { | |
356 | /* unmap old base */ | |
8c572eba | 357 | ret = munmap(pos->base, pos->packet_size / CHAR_BIT); |
0f980a35 | 358 | if (ret) { |
46322b33 | 359 | fprintf(stdout, "[error] Unable to unmap old base: %s.\n", |
0f980a35 MD |
360 | strerror(errno)); |
361 | assert(0); | |
362 | } | |
847bf71a | 363 | pos->base = NULL; |
0f980a35 MD |
364 | } |
365 | ||
8c572eba | 366 | /* |
46322b33 | 367 | * The caller should never ask for ctf_move_pos across packets, |
8c572eba MD |
368 | * except to get exactly at the beginning of the next packet. |
369 | */ | |
370 | if (pos->prot == PROT_WRITE) { | |
989c73bc MD |
371 | switch (whence) { |
372 | case SEEK_CUR: | |
373 | /* The writer will add padding */ | |
374 | assert(pos->offset + offset == pos->packet_size); | |
8c572eba | 375 | pos->mmap_offset += WRITE_PACKET_LEN / CHAR_BIT; |
989c73bc MD |
376 | break; |
377 | case SEEK_SET: | |
378 | assert(offset == 0); /* only seek supported for now */ | |
379 | pos->cur_index = 0; | |
380 | break; | |
381 | default: | |
382 | assert(0); | |
383 | } | |
8c572eba MD |
384 | pos->content_size = -1U; /* Unknown at this point */ |
385 | pos->packet_size = WRITE_PACKET_LEN; | |
989c73bc MD |
386 | off = posix_fallocate(pos->fd, pos->mmap_offset, |
387 | pos->packet_size / CHAR_BIT); | |
8c572eba | 388 | assert(off >= 0); |
847bf71a | 389 | pos->offset = 0; |
8c572eba | 390 | } else { |
847bf71a MD |
391 | switch (whence) { |
392 | case SEEK_CUR: | |
393 | /* The reader will expect us to skip padding */ | |
394 | assert(pos->offset + offset == pos->content_size); | |
8c572eba | 395 | ++pos->cur_index; |
847bf71a MD |
396 | break; |
397 | case SEEK_SET: | |
398 | assert(offset == 0); /* only seek supported for now */ | |
399 | pos->cur_index = 0; | |
400 | break; | |
401 | default: | |
402 | assert(0); | |
403 | } | |
404 | if (pos->cur_index >= pos->packet_index->len) { | |
670977d3 | 405 | pos->offset = EOF; |
847bf71a MD |
406 | return; |
407 | } | |
8c572eba MD |
408 | index = &g_array_index(pos->packet_index, struct packet_index, |
409 | pos->cur_index); | |
410 | pos->mmap_offset = index->offset; | |
411 | ||
412 | /* Lookup context/packet size in index */ | |
2d0bea29 | 413 | file_stream->parent.timestamp = index->timestamp_begin; |
8c572eba MD |
414 | pos->content_size = index->content_size; |
415 | pos->packet_size = index->packet_size; | |
2b9a764d | 416 | if (index->data_offset < index->content_size) |
75cc2c35 | 417 | pos->offset = 0; /* will read headers */ |
2b9a764d MD |
418 | else { |
419 | pos->offset = EOF; | |
420 | return; | |
421 | } | |
8c572eba | 422 | } |
0f980a35 | 423 | /* map new base. Need mapping length from header. */ |
8c572eba MD |
424 | pos->base = mmap(NULL, pos->packet_size / CHAR_BIT, pos->prot, |
425 | pos->flags, pos->fd, pos->mmap_offset); | |
847bf71a MD |
426 | if (pos->base == MAP_FAILED) { |
427 | fprintf(stdout, "[error] mmap error %s.\n", | |
428 | strerror(errno)); | |
429 | assert(0); | |
430 | } | |
75cc2c35 MD |
431 | |
432 | /* update trace_packet_header and stream_packet_context */ | |
2d0bea29 | 433 | if (pos->prot != PROT_WRITE && file_stream->parent.trace_packet_header) { |
75cc2c35 | 434 | /* Read packet header */ |
2d0bea29 | 435 | ret = generic_rw(&pos->parent, &file_stream->parent.trace_packet_header->p); |
75cc2c35 MD |
436 | assert(!ret); |
437 | } | |
2d0bea29 | 438 | if (pos->prot != PROT_WRITE && file_stream->parent.stream_packet_context) { |
75cc2c35 | 439 | /* Read packet context */ |
2d0bea29 | 440 | ret = generic_rw(&pos->parent, &file_stream->parent.stream_packet_context->p); |
75cc2c35 MD |
441 | assert(!ret); |
442 | } | |
0f980a35 MD |
443 | } |
444 | ||
b4c19c1e MD |
445 | static |
446 | int packet_metadata(struct ctf_trace *td, FILE *fp) | |
447 | { | |
448 | uint32_t magic; | |
449 | size_t len; | |
450 | int ret = 0; | |
451 | ||
452 | len = fread(&magic, sizeof(magic), 1, fp); | |
a0fe7d97 | 453 | if (len != 1) { |
b4c19c1e MD |
454 | goto end; |
455 | } | |
456 | if (magic == TSDL_MAGIC) { | |
457 | ret = 1; | |
458 | td->byte_order = BYTE_ORDER; | |
459 | } else if (magic == GUINT32_SWAP_LE_BE(TSDL_MAGIC)) { | |
460 | ret = 1; | |
461 | td->byte_order = (BYTE_ORDER == BIG_ENDIAN) ? | |
462 | LITTLE_ENDIAN : BIG_ENDIAN; | |
463 | } | |
a0fe7d97 | 464 | CTF_TRACE_SET_FIELD(td, byte_order); |
b4c19c1e MD |
465 | end: |
466 | rewind(fp); | |
467 | return ret; | |
468 | } | |
469 | ||
470 | static | |
471 | int ctf_open_trace_metadata_packet_read(struct ctf_trace *td, FILE *in, | |
472 | FILE *out) | |
473 | { | |
474 | struct metadata_packet_header header; | |
a0fe7d97 | 475 | size_t readlen, writelen, toread; |
b4c19c1e MD |
476 | char buf[4096]; |
477 | int ret = 0; | |
478 | ||
a91a962e | 479 | readlen = fread(&header, header_sizeof(header), 1, in); |
a0fe7d97 | 480 | if (readlen < 1) |
b4c19c1e MD |
481 | return -EINVAL; |
482 | ||
483 | if (td->byte_order != BYTE_ORDER) { | |
484 | header.magic = GUINT32_SWAP_LE_BE(header.magic); | |
485 | header.checksum = GUINT32_SWAP_LE_BE(header.checksum); | |
486 | header.content_size = GUINT32_SWAP_LE_BE(header.content_size); | |
487 | header.packet_size = GUINT32_SWAP_LE_BE(header.packet_size); | |
488 | } | |
489 | if (header.checksum) | |
490 | fprintf(stdout, "[warning] checksum verification not supported yet.\n"); | |
491 | if (header.compression_scheme) { | |
492 | fprintf(stdout, "[error] compression (%u) not supported yet.\n", | |
493 | header.compression_scheme); | |
494 | return -EINVAL; | |
495 | } | |
496 | if (header.encryption_scheme) { | |
497 | fprintf(stdout, "[error] encryption (%u) not supported yet.\n", | |
498 | header.encryption_scheme); | |
499 | return -EINVAL; | |
500 | } | |
501 | if (header.checksum_scheme) { | |
502 | fprintf(stdout, "[error] checksum (%u) not supported yet.\n", | |
503 | header.checksum_scheme); | |
504 | return -EINVAL; | |
505 | } | |
506 | if (!CTF_TRACE_FIELD_IS_SET(td, uuid)) { | |
507 | memcpy(td->uuid, header.uuid, sizeof(header.uuid)); | |
508 | CTF_TRACE_SET_FIELD(td, uuid); | |
509 | } else { | |
510 | if (uuid_compare(header.uuid, td->uuid)) | |
511 | return -EINVAL; | |
512 | } | |
513 | ||
255b2138 | 514 | toread = (header.content_size / CHAR_BIT) - header_sizeof(header); |
a0fe7d97 MD |
515 | |
516 | for (;;) { | |
517 | readlen = fread(buf, sizeof(char), min(sizeof(buf), toread), in); | |
b4c19c1e MD |
518 | if (ferror(in)) { |
519 | ret = -EINVAL; | |
520 | break; | |
521 | } | |
4152822b MD |
522 | if (babeltrace_debug) { |
523 | fprintf(stdout, "[debug] metadata packet read: %s\n", | |
524 | buf); | |
525 | } | |
526 | ||
b4c19c1e MD |
527 | writelen = fwrite(buf, sizeof(char), readlen, out); |
528 | if (writelen < readlen) { | |
529 | ret = -EIO; | |
530 | break; | |
531 | } | |
532 | if (ferror(out)) { | |
533 | ret = -EINVAL; | |
534 | break; | |
535 | } | |
a0fe7d97 MD |
536 | toread -= readlen; |
537 | if (!toread) { | |
7f4b5c4d | 538 | ret = 0; /* continue reading next packet */ |
a0fe7d97 MD |
539 | break; |
540 | } | |
b4c19c1e MD |
541 | } |
542 | return ret; | |
543 | } | |
544 | ||
545 | static | |
546 | int ctf_open_trace_metadata_stream_read(struct ctf_trace *td, FILE **fp, | |
547 | char **buf) | |
548 | { | |
549 | FILE *in, *out; | |
550 | size_t size; | |
551 | int ret; | |
552 | ||
553 | in = *fp; | |
c4f5487e MD |
554 | /* |
555 | * Using strlen on *buf instead of size of open_memstream | |
556 | * because its size includes garbage at the end (after final | |
557 | * \0). This is the allocated size, not the actual string size. | |
558 | */ | |
b4c19c1e MD |
559 | out = open_memstream(buf, &size); |
560 | if (out == NULL) | |
561 | return -errno; | |
562 | ||
563 | for (;;) { | |
564 | ret = ctf_open_trace_metadata_packet_read(td, in, out); | |
7f4b5c4d | 565 | if (ret) { |
b4c19c1e | 566 | break; |
7f4b5c4d MD |
567 | } |
568 | if (feof(in)) { | |
569 | ret = 0; | |
b4c19c1e MD |
570 | break; |
571 | } | |
572 | } | |
573 | fclose(out); /* flush the buffer */ | |
574 | fclose(in); | |
575 | /* open for reading */ | |
c4f5487e | 576 | *fp = fmemopen(*buf, strlen(*buf), "rb"); |
b4c19c1e MD |
577 | return 0; |
578 | } | |
579 | ||
65102a8c | 580 | static |
46322b33 | 581 | int ctf_open_trace_metadata_read(struct ctf_trace *td) |
65102a8c MD |
582 | { |
583 | struct ctf_scanner *scanner; | |
2d0bea29 | 584 | struct ctf_file_stream *metadata_stream; |
65102a8c | 585 | FILE *fp; |
b4c19c1e | 586 | char *buf = NULL; |
65102a8c MD |
587 | int ret = 0; |
588 | ||
2d0bea29 MD |
589 | metadata_stream = g_new0(struct ctf_file_stream, 1); |
590 | td->metadata = &metadata_stream->parent; | |
591 | metadata_stream->pos.fd = openat(td->dirfd, "metadata", O_RDONLY); | |
592 | if (metadata_stream->pos.fd < 0) { | |
65102a8c | 593 | fprintf(stdout, "Unable to open metadata.\n"); |
2d0bea29 | 594 | return metadata_stream->pos.fd; |
65102a8c MD |
595 | } |
596 | ||
597 | if (babeltrace_debug) | |
598 | yydebug = 1; | |
599 | ||
2d0bea29 | 600 | fp = fdopen(metadata_stream->pos.fd, "r"); |
65102a8c | 601 | if (!fp) { |
46322b33 | 602 | fprintf(stdout, "[error] Unable to open metadata stream.\n"); |
65102a8c MD |
603 | ret = -errno; |
604 | goto end_stream; | |
605 | } | |
606 | ||
b4c19c1e MD |
607 | if (packet_metadata(td, fp)) { |
608 | ret = ctf_open_trace_metadata_stream_read(td, &fp, &buf); | |
609 | if (ret) | |
610 | goto end_packet_read; | |
611 | } | |
612 | ||
65102a8c MD |
613 | scanner = ctf_scanner_alloc(fp); |
614 | if (!scanner) { | |
46322b33 | 615 | fprintf(stdout, "[error] Error allocating scanner\n"); |
65102a8c MD |
616 | ret = -ENOMEM; |
617 | goto end_scanner_alloc; | |
618 | } | |
619 | ret = ctf_scanner_append_ast(scanner); | |
620 | if (ret) { | |
46322b33 | 621 | fprintf(stdout, "[error] Error creating AST\n"); |
65102a8c MD |
622 | goto end; |
623 | } | |
624 | ||
625 | if (babeltrace_debug) { | |
626 | ret = ctf_visitor_print_xml(stdout, 0, &scanner->ast->root); | |
627 | if (ret) { | |
46322b33 | 628 | fprintf(stdout, "[error] Error visiting AST for XML output\n"); |
65102a8c MD |
629 | goto end; |
630 | } | |
631 | } | |
632 | ||
633 | ret = ctf_visitor_semantic_check(stdout, 0, &scanner->ast->root); | |
634 | if (ret) { | |
46322b33 | 635 | fprintf(stdout, "[error] Error in CTF semantic validation %d\n", ret); |
65102a8c MD |
636 | goto end; |
637 | } | |
638 | ret = ctf_visitor_construct_metadata(stdout, 0, &scanner->ast->root, | |
46322b33 | 639 | td, BYTE_ORDER); |
65102a8c | 640 | if (ret) { |
46322b33 | 641 | fprintf(stdout, "[error] Error in CTF metadata constructor %d\n", ret); |
65102a8c MD |
642 | goto end; |
643 | } | |
644 | end: | |
645 | ctf_scanner_free(scanner); | |
646 | end_scanner_alloc: | |
b4c19c1e | 647 | end_packet_read: |
65102a8c | 648 | fclose(fp); |
b4c19c1e | 649 | free(buf); |
65102a8c | 650 | end_stream: |
2d0bea29 MD |
651 | close(metadata_stream->pos.fd); |
652 | if (ret) | |
653 | g_free(metadata_stream); | |
0f980a35 MD |
654 | return ret; |
655 | } | |
656 | ||
e28d4618 | 657 | static |
42dc00b7 MD |
658 | struct ctf_stream_event *create_event_definitions(struct ctf_trace *td, |
659 | struct ctf_stream *stream, | |
660 | struct ctf_event *event) | |
e28d4618 | 661 | { |
42dc00b7 | 662 | struct ctf_stream_event *stream_event = g_new0(struct ctf_stream_event, 1); |
e28d4618 MD |
663 | |
664 | if (event->context_decl) { | |
665 | struct definition *definition = | |
666 | event->context_decl->p.definition_new(&event->context_decl->p, | |
667 | stream->parent_def_scope, 0, 0, "event.context"); | |
668 | if (!definition) { | |
669 | goto error; | |
670 | } | |
42dc00b7 | 671 | stream_event->event_context = container_of(definition, |
e28d4618 | 672 | struct definition_struct, p); |
42dc00b7 | 673 | stream->parent_def_scope = stream_event->event_context->p.scope; |
e28d4618 MD |
674 | } |
675 | if (event->fields_decl) { | |
676 | struct definition *definition = | |
677 | event->fields_decl->p.definition_new(&event->fields_decl->p, | |
678 | stream->parent_def_scope, 0, 0, "event.fields"); | |
679 | if (!definition) { | |
680 | goto error; | |
681 | } | |
42dc00b7 | 682 | stream_event->event_fields = container_of(definition, |
e28d4618 | 683 | struct definition_struct, p); |
42dc00b7 | 684 | stream->parent_def_scope = stream_event->event_fields->p.scope; |
e28d4618 | 685 | } |
42dc00b7 | 686 | return stream_event; |
e28d4618 MD |
687 | |
688 | error: | |
42dc00b7 MD |
689 | if (stream_event->event_fields) |
690 | definition_unref(&stream_event->event_fields->p); | |
691 | if (stream_event->event_context) | |
692 | definition_unref(&stream_event->event_context->p); | |
e28d4618 MD |
693 | return NULL; |
694 | } | |
695 | ||
696 | static | |
697 | int create_stream_definitions(struct ctf_trace *td, struct ctf_stream *stream) | |
698 | { | |
699 | struct ctf_stream_class *stream_class; | |
700 | int ret; | |
701 | int i; | |
702 | ||
703 | if (stream->stream_definitions_created) | |
704 | return 0; | |
705 | ||
706 | stream_class = stream->stream_class; | |
707 | ||
708 | if (stream_class->packet_context_decl) { | |
709 | struct definition *definition = | |
710 | stream_class->packet_context_decl->p.definition_new(&stream_class->packet_context_decl->p, | |
711 | stream->parent_def_scope, 0, 0, "stream.packet.context"); | |
712 | if (!definition) { | |
713 | ret = -EINVAL; | |
714 | goto error; | |
715 | } | |
716 | stream->stream_packet_context = container_of(definition, | |
717 | struct definition_struct, p); | |
718 | stream->parent_def_scope = stream->stream_packet_context->p.scope; | |
719 | } | |
720 | if (stream_class->event_header_decl) { | |
721 | struct definition *definition = | |
722 | stream_class->event_header_decl->p.definition_new(&stream_class->event_header_decl->p, | |
723 | stream->parent_def_scope, 0, 0, "stream.event.header"); | |
724 | if (!definition) { | |
725 | ret = -EINVAL; | |
726 | goto error; | |
727 | } | |
728 | stream->stream_event_header = | |
729 | container_of(definition, struct definition_struct, p); | |
730 | stream->parent_def_scope = stream->stream_event_header->p.scope; | |
731 | } | |
732 | if (stream_class->event_context_decl) { | |
733 | struct definition *definition = | |
734 | stream_class->event_context_decl->p.definition_new(&stream_class->event_context_decl->p, | |
735 | stream->parent_def_scope, 0, 0, "stream.event.context"); | |
736 | if (!definition) { | |
737 | ret = -EINVAL; | |
738 | goto error; | |
739 | } | |
740 | stream->stream_event_context = | |
741 | container_of(definition, struct definition_struct, p); | |
742 | stream->parent_def_scope = stream->stream_event_context->p.scope; | |
743 | } | |
744 | stream->events_by_id = g_ptr_array_new(); | |
745 | g_ptr_array_set_size(stream->events_by_id, stream_class->events_by_id->len); | |
746 | for (i = 0; i < stream->events_by_id->len; i++) { | |
747 | struct ctf_event *event = g_ptr_array_index(stream_class->events_by_id, i); | |
42dc00b7 | 748 | struct ctf_stream_event *stream_event; |
e28d4618 MD |
749 | |
750 | if (!event) | |
751 | continue; | |
42dc00b7 MD |
752 | stream_event = create_event_definitions(td, stream, event); |
753 | if (!stream_event) | |
e28d4618 | 754 | goto error_event; |
42dc00b7 | 755 | g_ptr_array_index(stream->events_by_id, i) = stream_event; |
e28d4618 MD |
756 | } |
757 | return 0; | |
758 | ||
759 | error_event: | |
760 | for (i = 0; i < stream->events_by_id->len; i++) { | |
42dc00b7 MD |
761 | struct ctf_stream_event *stream_event = g_ptr_array_index(stream->events_by_id, i); |
762 | if (stream_event) | |
763 | g_free(stream_event); | |
e28d4618 MD |
764 | } |
765 | g_ptr_array_free(stream->events_by_id, TRUE); | |
766 | error: | |
767 | if (stream->stream_event_context) | |
768 | definition_unref(&stream->stream_event_context->p); | |
769 | if (stream->stream_event_header) | |
770 | definition_unref(&stream->stream_event_header->p); | |
771 | if (stream->stream_packet_context) | |
772 | definition_unref(&stream->stream_packet_context->p); | |
773 | return ret; | |
774 | } | |
775 | ||
0f980a35 MD |
776 | |
777 | static | |
46322b33 | 778 | int create_stream_packet_index(struct ctf_trace *td, |
0f980a35 MD |
779 | struct ctf_file_stream *file_stream) |
780 | { | |
aa6bffae | 781 | struct ctf_stream_class *stream; |
0f980a35 | 782 | int len_index; |
46322b33 | 783 | struct ctf_stream_pos *pos; |
0f980a35 MD |
784 | struct stat filestats; |
785 | struct packet_index packet_index; | |
786 | int first_packet = 1; | |
787 | int ret; | |
788 | ||
789 | pos = &file_stream->pos; | |
790 | ||
791 | ret = fstat(pos->fd, &filestats); | |
792 | if (ret < 0) | |
793 | return ret; | |
794 | ||
8895362d MD |
795 | if (filestats.st_size < MAX_PACKET_HEADER_LEN / CHAR_BIT) |
796 | return -EINVAL; | |
797 | ||
0f980a35 MD |
798 | for (pos->mmap_offset = 0; pos->mmap_offset < filestats.st_size; ) { |
799 | uint64_t stream_id = 0; | |
800 | ||
801 | if (pos->base) { | |
802 | /* unmap old base */ | |
8c572eba | 803 | ret = munmap(pos->base, pos->packet_size / CHAR_BIT); |
0f980a35 | 804 | if (ret) { |
46322b33 | 805 | fprintf(stdout, "[error] Unable to unmap old base: %s.\n", |
0f980a35 MD |
806 | strerror(errno)); |
807 | return ret; | |
808 | } | |
8c572eba | 809 | pos->base = NULL; |
0f980a35 MD |
810 | } |
811 | /* map new base. Need mapping length from header. */ | |
8c572eba | 812 | pos->base = mmap(NULL, MAX_PACKET_HEADER_LEN / CHAR_BIT, PROT_READ, |
0f980a35 | 813 | MAP_PRIVATE, pos->fd, pos->mmap_offset); |
dc48ecad MD |
814 | pos->content_size = MAX_PACKET_HEADER_LEN; /* Unknown at this point */ |
815 | pos->packet_size = MAX_PACKET_HEADER_LEN; /* Unknown at this point */ | |
0f980a35 MD |
816 | pos->offset = 0; /* Position of the packet header */ |
817 | ||
8c572eba MD |
818 | packet_index.offset = pos->mmap_offset; |
819 | packet_index.content_size = 0; | |
820 | packet_index.packet_size = 0; | |
75cc2c35 MD |
821 | packet_index.timestamp_begin = 0; |
822 | packet_index.timestamp_end = 0; | |
8c572eba | 823 | |
0f980a35 | 824 | /* read and check header, set stream id (and check) */ |
2d0bea29 | 825 | if (file_stream->parent.trace_packet_header) { |
0f980a35 | 826 | /* Read packet header */ |
2d0bea29 | 827 | ret = generic_rw(&pos->parent, &file_stream->parent.trace_packet_header->p); |
c5e74408 MD |
828 | if (ret) |
829 | return ret; | |
2d0bea29 | 830 | len_index = struct_declaration_lookup_field_index(file_stream->parent.trace_packet_header->declaration, g_quark_from_static_string("magic")); |
0f980a35 MD |
831 | if (len_index >= 0) { |
832 | struct definition_integer *defint; | |
b1a2f580 | 833 | struct definition *field; |
0f980a35 | 834 | |
2d0bea29 | 835 | field = struct_definition_get_field_from_index(file_stream->parent.trace_packet_header, len_index); |
b1a2f580 MD |
836 | assert(field->declaration->id == CTF_TYPE_INTEGER); |
837 | defint = container_of(field, struct definition_integer, p); | |
0f980a35 MD |
838 | assert(defint->declaration->signedness == FALSE); |
839 | if (defint->value._unsigned != CTF_MAGIC) { | |
d8ea2d29 | 840 | fprintf(stdout, "[error] Invalid magic number 0x%" PRIX64 " at packet %u (file offset %zd).\n", |
8c572eba MD |
841 | defint->value._unsigned, |
842 | file_stream->pos.packet_index->len, | |
843 | (ssize_t) pos->mmap_offset); | |
0f980a35 MD |
844 | return -EINVAL; |
845 | } | |
846 | } | |
847 | ||
848 | /* check uuid */ | |
2d0bea29 | 849 | len_index = struct_declaration_lookup_field_index(file_stream->parent.trace_packet_header->declaration, g_quark_from_static_string("uuid")); |
0f980a35 MD |
850 | if (len_index >= 0) { |
851 | struct definition_array *defarray; | |
b1a2f580 | 852 | struct definition *field; |
0f980a35 MD |
853 | uint64_t i; |
854 | uint8_t uuidval[UUID_LEN]; | |
855 | ||
2d0bea29 | 856 | field = struct_definition_get_field_from_index(file_stream->parent.trace_packet_header, len_index); |
b1a2f580 MD |
857 | assert(field->declaration->id == CTF_TYPE_ARRAY); |
858 | defarray = container_of(field, struct definition_array, p); | |
3838df27 | 859 | assert(array_len(defarray) == UUID_LEN); |
0f980a35 MD |
860 | assert(defarray->declaration->elem->id == CTF_TYPE_INTEGER); |
861 | ||
862 | for (i = 0; i < UUID_LEN; i++) { | |
863 | struct definition *elem; | |
864 | struct definition_integer *defint; | |
865 | ||
866 | elem = array_index(defarray, i); | |
867 | assert(elem); | |
868 | defint = container_of(elem, struct definition_integer, p); | |
869 | uuidval[i] = defint->value._unsigned; | |
870 | } | |
46322b33 | 871 | ret = uuid_compare(td->uuid, uuidval); |
0f980a35 MD |
872 | if (ret) { |
873 | fprintf(stdout, "[error] Unique Universal Identifiers do not match.\n"); | |
874 | return -EINVAL; | |
875 | } | |
876 | } | |
877 | ||
878 | ||
2d0bea29 | 879 | len_index = struct_declaration_lookup_field_index(file_stream->parent.trace_packet_header->declaration, g_quark_from_static_string("stream_id")); |
0f980a35 MD |
880 | if (len_index >= 0) { |
881 | struct definition_integer *defint; | |
b1a2f580 | 882 | struct definition *field; |
0f980a35 | 883 | |
2d0bea29 | 884 | field = struct_definition_get_field_from_index(file_stream->parent.trace_packet_header, len_index); |
b1a2f580 MD |
885 | assert(field->declaration->id == CTF_TYPE_INTEGER); |
886 | defint = container_of(field, struct definition_integer, p); | |
0f980a35 MD |
887 | assert(defint->declaration->signedness == FALSE); |
888 | stream_id = defint->value._unsigned; | |
889 | } | |
890 | } | |
891 | ||
2d0bea29 | 892 | if (!first_packet && file_stream->parent.stream_id != stream_id) { |
0f980a35 MD |
893 | fprintf(stdout, "[error] Stream ID is changing within a stream.\n"); |
894 | return -EINVAL; | |
895 | } | |
896 | if (first_packet) { | |
2d0bea29 | 897 | file_stream->parent.stream_id = stream_id; |
46322b33 | 898 | if (stream_id >= td->streams->len) { |
0f980a35 MD |
899 | fprintf(stdout, "[error] Stream %" PRIu64 " is not declared in metadata.\n", stream_id); |
900 | return -EINVAL; | |
901 | } | |
46322b33 | 902 | stream = g_ptr_array_index(td->streams, stream_id); |
0f980a35 MD |
903 | if (!stream) { |
904 | fprintf(stdout, "[error] Stream %" PRIu64 " is not declared in metadata.\n", stream_id); | |
905 | return -EINVAL; | |
906 | } | |
2d0bea29 | 907 | file_stream->parent.stream_class = stream; |
0f980a35 MD |
908 | } |
909 | first_packet = 0; | |
910 | ||
2d0bea29 | 911 | ret = create_stream_definitions(td, &file_stream->parent); |
e28d4618 MD |
912 | if (ret) |
913 | return ret; | |
914 | ||
2d0bea29 | 915 | if (file_stream->parent.stream_packet_context) { |
dc48ecad | 916 | /* Read packet context */ |
2d0bea29 | 917 | ret = generic_rw(&pos->parent, &file_stream->parent.stream_packet_context->p); |
c5e74408 MD |
918 | if (ret) |
919 | return ret; | |
dc48ecad | 920 | /* read content size from header */ |
2d0bea29 | 921 | len_index = struct_declaration_lookup_field_index(file_stream->parent.stream_packet_context->declaration, g_quark_from_static_string("content_size")); |
dc48ecad MD |
922 | if (len_index >= 0) { |
923 | struct definition_integer *defint; | |
b1a2f580 | 924 | struct definition *field; |
dc48ecad | 925 | |
2d0bea29 | 926 | field = struct_definition_get_field_from_index(file_stream->parent.stream_packet_context, len_index); |
b1a2f580 MD |
927 | assert(field->declaration->id == CTF_TYPE_INTEGER); |
928 | defint = container_of(field, struct definition_integer, p); | |
dc48ecad | 929 | assert(defint->declaration->signedness == FALSE); |
8c572eba | 930 | packet_index.content_size = defint->value._unsigned; |
dc48ecad MD |
931 | } else { |
932 | /* Use file size for packet size */ | |
8c572eba | 933 | packet_index.content_size = filestats.st_size * CHAR_BIT; |
dc48ecad MD |
934 | } |
935 | ||
936 | /* read packet size from header */ | |
2d0bea29 | 937 | len_index = struct_declaration_lookup_field_index(file_stream->parent.stream_packet_context->declaration, g_quark_from_static_string("packet_size")); |
dc48ecad MD |
938 | if (len_index >= 0) { |
939 | struct definition_integer *defint; | |
b1a2f580 | 940 | struct definition *field; |
dc48ecad | 941 | |
2d0bea29 | 942 | field = struct_definition_get_field_from_index(file_stream->parent.stream_packet_context, len_index); |
b1a2f580 MD |
943 | assert(field->declaration->id == CTF_TYPE_INTEGER); |
944 | defint = container_of(field, struct definition_integer, p); | |
dc48ecad | 945 | assert(defint->declaration->signedness == FALSE); |
8c572eba | 946 | packet_index.packet_size = defint->value._unsigned; |
dc48ecad MD |
947 | } else { |
948 | /* Use content size if non-zero, else file size */ | |
8c572eba | 949 | packet_index.packet_size = packet_index.content_size ? : filestats.st_size * CHAR_BIT; |
dc48ecad | 950 | } |
75cc2c35 MD |
951 | |
952 | /* read timestamp begin from header */ | |
2d0bea29 | 953 | len_index = struct_declaration_lookup_field_index(file_stream->parent.stream_packet_context->declaration, g_quark_from_static_string("timestamp_begin")); |
75cc2c35 MD |
954 | if (len_index >= 0) { |
955 | struct definition_integer *defint; | |
956 | struct definition *field; | |
957 | ||
2d0bea29 | 958 | field = struct_definition_get_field_from_index(file_stream->parent.stream_packet_context, len_index); |
75cc2c35 MD |
959 | assert(field->declaration->id == CTF_TYPE_INTEGER); |
960 | defint = container_of(field, struct definition_integer, p); | |
961 | assert(defint->declaration->signedness == FALSE); | |
962 | packet_index.timestamp_begin = defint->value._unsigned; | |
963 | } | |
964 | ||
965 | /* read timestamp end from header */ | |
2d0bea29 | 966 | len_index = struct_declaration_lookup_field_index(file_stream->parent.stream_packet_context->declaration, g_quark_from_static_string("timestamp_end")); |
75cc2c35 MD |
967 | if (len_index >= 0) { |
968 | struct definition_integer *defint; | |
969 | struct definition *field; | |
970 | ||
2d0bea29 | 971 | field = struct_definition_get_field_from_index(file_stream->parent.stream_packet_context, len_index); |
75cc2c35 MD |
972 | assert(field->declaration->id == CTF_TYPE_INTEGER); |
973 | defint = container_of(field, struct definition_integer, p); | |
974 | assert(defint->declaration->signedness == FALSE); | |
975 | packet_index.timestamp_end = defint->value._unsigned; | |
976 | } | |
0f980a35 MD |
977 | } else { |
978 | /* Use file size for packet size */ | |
8c572eba | 979 | packet_index.content_size = filestats.st_size * CHAR_BIT; |
0f980a35 | 980 | /* Use content size if non-zero, else file size */ |
8c572eba | 981 | packet_index.packet_size = packet_index.content_size ? : filestats.st_size * CHAR_BIT; |
0f980a35 | 982 | } |
546293fa MD |
983 | |
984 | /* Validate content size and packet size values */ | |
985 | if (packet_index.content_size > packet_index.packet_size) { | |
986 | fprintf(stdout, "[error] Content size (%zu bits) is larger than packet size (%zu bits).\n", | |
987 | packet_index.content_size, packet_index.packet_size); | |
988 | return -EINVAL; | |
989 | } | |
990 | ||
58b0b883 MD |
991 | if (packet_index.packet_size > (filestats.st_size - packet_index.offset) * CHAR_BIT) { |
992 | fprintf(stdout, "[error] Packet size (%zu bits) is larger than remaining file size (%zu bits).\n", | |
5aebb2ee | 993 | packet_index.content_size, (size_t) (filestats.st_size - packet_index.offset) * CHAR_BIT); |
546293fa MD |
994 | return -EINVAL; |
995 | } | |
996 | ||
847bf71a MD |
997 | /* Save position after header and context */ |
998 | packet_index.data_offset = pos->offset; | |
0f980a35 | 999 | |
0f980a35 MD |
1000 | /* add index to packet array */ |
1001 | g_array_append_val(file_stream->pos.packet_index, packet_index); | |
1002 | ||
8c572eba | 1003 | pos->mmap_offset += packet_index.packet_size / CHAR_BIT; |
0f980a35 MD |
1004 | } |
1005 | ||
847bf71a MD |
1006 | /* Move pos back to beginning of file */ |
1007 | ctf_move_pos_slow(pos, 0, SEEK_SET); /* position for write */ | |
1008 | ||
0f980a35 MD |
1009 | return 0; |
1010 | } | |
1011 | ||
e28d4618 MD |
1012 | static |
1013 | int create_trace_definitions(struct ctf_trace *td, struct ctf_stream *stream) | |
1014 | { | |
1015 | int ret; | |
1016 | ||
1017 | if (td->packet_header_decl) { | |
1018 | struct definition *definition = | |
1019 | td->packet_header_decl->p.definition_new(&td->packet_header_decl->p, | |
1020 | stream->parent_def_scope, 0, 0, "trace.packet.header"); | |
1021 | if (!definition) { | |
1022 | ret = -EINVAL; | |
1023 | goto error; | |
1024 | } | |
1025 | stream->trace_packet_header = | |
1026 | container_of(definition, struct definition_struct, p); | |
1027 | stream->parent_def_scope = stream->trace_packet_header->p.scope; | |
1028 | } | |
1029 | ||
1030 | return 0; | |
1031 | ||
1032 | error: | |
1033 | return ret; | |
1034 | } | |
1035 | ||
0f980a35 MD |
1036 | /* |
1037 | * Note: many file streams can inherit from the same stream class | |
1038 | * description (metadata). | |
1039 | */ | |
1040 | static | |
46322b33 | 1041 | int ctf_open_file_stream_read(struct ctf_trace *td, const char *path, int flags) |
0f980a35 MD |
1042 | { |
1043 | int ret; | |
1044 | struct ctf_file_stream *file_stream; | |
1045 | ||
46322b33 | 1046 | ret = openat(td->dirfd, path, flags); |
0f980a35 MD |
1047 | if (ret < 0) |
1048 | goto error; | |
1049 | file_stream = g_new0(struct ctf_file_stream, 1); | |
8563e754 | 1050 | ctf_init_pos(&file_stream->pos, ret, flags); |
2d0bea29 | 1051 | ret = create_trace_definitions(td, &file_stream->parent); |
e28d4618 MD |
1052 | if (ret) |
1053 | goto error_def; | |
0f980a35 MD |
1054 | ret = create_stream_packet_index(td, file_stream); |
1055 | if (ret) | |
1056 | goto error_index; | |
1057 | /* Add stream file to stream class */ | |
2d0bea29 MD |
1058 | g_ptr_array_add(file_stream->parent.stream_class->streams, |
1059 | &file_stream->parent); | |
0f980a35 MD |
1060 | return 0; |
1061 | ||
1062 | error_index: | |
2d0bea29 MD |
1063 | if (file_stream->parent.trace_packet_header) |
1064 | definition_unref(&file_stream->parent.trace_packet_header->p); | |
e28d4618 | 1065 | error_def: |
46322b33 | 1066 | ctf_fini_pos(&file_stream->pos); |
0f980a35 MD |
1067 | close(file_stream->pos.fd); |
1068 | g_free(file_stream); | |
1069 | error: | |
65102a8c MD |
1070 | return ret; |
1071 | } | |
1072 | ||
bbefb8dd | 1073 | static |
46322b33 | 1074 | int ctf_open_trace_read(struct ctf_trace *td, const char *path, int flags) |
bbefb8dd MD |
1075 | { |
1076 | int ret; | |
65102a8c MD |
1077 | struct dirent *dirent; |
1078 | struct dirent *diriter; | |
1079 | size_t dirent_len; | |
bbefb8dd | 1080 | |
46322b33 | 1081 | td->flags = flags; |
bbefb8dd MD |
1082 | |
1083 | /* Open trace directory */ | |
46322b33 MD |
1084 | td->dir = opendir(path); |
1085 | if (!td->dir) { | |
dc48ecad | 1086 | fprintf(stdout, "[error] Unable to open trace directory.\n"); |
bbefb8dd MD |
1087 | ret = -ENOENT; |
1088 | goto error; | |
1089 | } | |
1090 | ||
46322b33 MD |
1091 | td->dirfd = open(path, 0); |
1092 | if (td->dirfd < 0) { | |
dc48ecad | 1093 | fprintf(stdout, "[error] Unable to open trace directory file descriptor.\n"); |
65102a8c MD |
1094 | ret = -ENOENT; |
1095 | goto error_dirfd; | |
1096 | } | |
0f980a35 | 1097 | |
65102a8c MD |
1098 | /* |
1099 | * Keep the metadata file separate. | |
1100 | */ | |
bbefb8dd | 1101 | |
65102a8c MD |
1102 | ret = ctf_open_trace_metadata_read(td); |
1103 | if (ret) { | |
1104 | goto error_metadata; | |
1105 | } | |
bbefb8dd MD |
1106 | |
1107 | /* | |
1108 | * Open each stream: for each file, try to open, check magic | |
1109 | * number, and get the stream ID to add to the right location in | |
1110 | * the stream array. | |
bbefb8dd MD |
1111 | */ |
1112 | ||
65102a8c | 1113 | dirent_len = offsetof(struct dirent, d_name) + |
46322b33 | 1114 | fpathconf(td->dirfd, _PC_NAME_MAX) + 1; |
bbefb8dd | 1115 | |
65102a8c | 1116 | dirent = malloc(dirent_len); |
bbefb8dd | 1117 | |
65102a8c | 1118 | for (;;) { |
46322b33 | 1119 | ret = readdir_r(td->dir, dirent, &diriter); |
65102a8c | 1120 | if (ret) { |
dc48ecad | 1121 | fprintf(stdout, "[error] Readdir error.\n"); |
65102a8c | 1122 | goto readdir_error; |
65102a8c MD |
1123 | } |
1124 | if (!diriter) | |
1125 | break; | |
d8ea2d29 MD |
1126 | /* Ignore hidden files, ., .. and metadata. */ |
1127 | if (!strncmp(diriter->d_name, ".", 1) | |
65102a8c MD |
1128 | || !strcmp(diriter->d_name, "..") |
1129 | || !strcmp(diriter->d_name, "metadata")) | |
1130 | continue; | |
dc48ecad MD |
1131 | ret = ctf_open_file_stream_read(td, diriter->d_name, flags); |
1132 | if (ret) { | |
1133 | fprintf(stdout, "[error] Open file stream error.\n"); | |
1134 | goto readdir_error; | |
1135 | } | |
65102a8c | 1136 | } |
bbefb8dd | 1137 | |
65102a8c | 1138 | free(dirent); |
bbefb8dd | 1139 | return 0; |
65102a8c MD |
1140 | |
1141 | readdir_error: | |
1142 | free(dirent); | |
1143 | error_metadata: | |
46322b33 | 1144 | close(td->dirfd); |
65102a8c | 1145 | error_dirfd: |
46322b33 | 1146 | closedir(td->dir); |
bbefb8dd MD |
1147 | error: |
1148 | return ret; | |
1149 | } | |
1150 | ||
e9378815 | 1151 | static |
bbefb8dd MD |
1152 | struct trace_descriptor *ctf_open_trace(const char *path, int flags) |
1153 | { | |
46322b33 | 1154 | struct ctf_trace *td; |
bbefb8dd MD |
1155 | int ret; |
1156 | ||
46322b33 | 1157 | td = g_new0(struct ctf_trace, 1); |
bbefb8dd | 1158 | |
8c572eba | 1159 | switch (flags & O_ACCMODE) { |
bbefb8dd | 1160 | case O_RDONLY: |
b61922b5 MD |
1161 | if (!path) { |
1162 | fprintf(stdout, "[error] Path missing for input CTF trace.\n"); | |
1163 | goto error; | |
1164 | } | |
bbefb8dd MD |
1165 | ret = ctf_open_trace_read(td, path, flags); |
1166 | if (ret) | |
1167 | goto error; | |
1168 | break; | |
989c73bc | 1169 | case O_RDWR: |
46322b33 MD |
1170 | fprintf(stdout, "[error] Opening CTF traces for output is not supported yet.\n"); |
1171 | goto error; | |
bbefb8dd | 1172 | default: |
46322b33 | 1173 | fprintf(stdout, "[error] Incorrect open flags.\n"); |
bbefb8dd MD |
1174 | goto error; |
1175 | } | |
1176 | ||
46322b33 | 1177 | return &td->parent; |
bbefb8dd MD |
1178 | error: |
1179 | g_free(td); | |
1180 | return NULL; | |
1181 | } | |
1182 | ||
0f980a35 MD |
1183 | static |
1184 | void ctf_close_file_stream(struct ctf_file_stream *file_stream) | |
1185 | { | |
46322b33 | 1186 | ctf_fini_pos(&file_stream->pos); |
0f980a35 MD |
1187 | close(file_stream->pos.fd); |
1188 | } | |
1189 | ||
e9378815 | 1190 | static |
46322b33 | 1191 | void ctf_close_trace(struct trace_descriptor *tdp) |
bbefb8dd | 1192 | { |
46322b33 | 1193 | struct ctf_trace *td = container_of(tdp, struct ctf_trace, parent); |
0f980a35 MD |
1194 | int i; |
1195 | ||
46322b33 MD |
1196 | if (td->streams) { |
1197 | for (i = 0; i < td->streams->len; i++) { | |
aa6bffae | 1198 | struct ctf_stream_class *stream; |
0f980a35 | 1199 | int j; |
e9378815 | 1200 | |
46322b33 | 1201 | stream = g_ptr_array_index(td->streams, i); |
e9378815 MD |
1202 | if (!stream) |
1203 | continue; | |
2d0bea29 | 1204 | for (j = 0; j < stream->streams->len; j++) { |
0f980a35 | 1205 | struct ctf_file_stream *file_stream; |
2d0bea29 | 1206 | file_stream = container_of(g_ptr_array_index(stream->streams, j), struct ctf_file_stream, parent); |
0f980a35 MD |
1207 | ctf_close_file_stream(file_stream); |
1208 | } | |
1209 | ||
1210 | } | |
46322b33 | 1211 | g_ptr_array_free(td->streams, TRUE); |
0f980a35 | 1212 | } |
46322b33 | 1213 | closedir(td->dir); |
bbefb8dd MD |
1214 | g_free(td); |
1215 | } | |
1216 | ||
7fb21036 | 1217 | void __attribute__((constructor)) ctf_init(void) |
fc93b2bd MD |
1218 | { |
1219 | int ret; | |
1220 | ||
4c8bfb7e | 1221 | ctf_format.name = g_quark_from_static_string("ctf"); |
fc93b2bd MD |
1222 | ret = bt_register_format(&ctf_format); |
1223 | assert(!ret); | |
1224 | } | |
698f0fe4 MD |
1225 | |
1226 | /* TODO: finalize */ |