root / block / curl.c @ 45724d6d
History | View | Annotate | Download (16.2 kB)
1 |
/*
|
---|---|
2 |
* QEMU Block driver for CURL images
|
3 |
*
|
4 |
* Copyright (c) 2009 Alexander Graf <agraf@suse.de>
|
5 |
*
|
6 |
* Permission is hereby granted, free of charge, to any person obtaining a copy
|
7 |
* of this software and associated documentation files (the "Software"), to deal
|
8 |
* in the Software without restriction, including without limitation the rights
|
9 |
* to use, copy, modify, merge, publish, distribute, sublicense, and/or sell
|
10 |
* copies of the Software, and to permit persons to whom the Software is
|
11 |
* furnished to do so, subject to the following conditions:
|
12 |
*
|
13 |
* The above copyright notice and this permission notice shall be included in
|
14 |
* all copies or substantial portions of the Software.
|
15 |
*
|
16 |
* THE SOFTWARE IS PROVIDED "AS IS", WITHOUT WARRANTY OF ANY KIND, EXPRESS OR
|
17 |
* IMPLIED, INCLUDING BUT NOT LIMITED TO THE WARRANTIES OF MERCHANTABILITY,
|
18 |
* FITNESS FOR A PARTICULAR PURPOSE AND NONINFRINGEMENT. IN NO EVENT SHALL
|
19 |
* THE AUTHORS OR COPYRIGHT HOLDERS BE LIABLE FOR ANY CLAIM, DAMAGES OR OTHER
|
20 |
* LIABILITY, WHETHER IN AN ACTION OF CONTRACT, TORT OR OTHERWISE, ARISING FROM,
|
21 |
* OUT OF OR IN CONNECTION WITH THE SOFTWARE OR THE USE OR OTHER DEALINGS IN
|
22 |
* THE SOFTWARE.
|
23 |
*/
|
24 |
#include "qemu-common.h" |
25 |
#include "block_int.h" |
26 |
#include <curl/curl.h> |
27 |
|
28 |
// #define DEBUG
|
29 |
// #define DEBUG_VERBOSE
|
30 |
|
31 |
#ifdef DEBUG_CURL
|
32 |
#define DPRINTF(fmt, ...) do { printf(fmt, ## __VA_ARGS__); } while (0) |
33 |
#else
|
34 |
#define DPRINTF(fmt, ...) do { } while (0) |
35 |
#endif
|
36 |
|
37 |
#define CURL_NUM_STATES 8 |
38 |
#define CURL_NUM_ACB 8 |
39 |
#define SECTOR_SIZE 512 |
40 |
#define READ_AHEAD_SIZE (256 * 1024) |
41 |
|
42 |
#define FIND_RET_NONE 0 |
43 |
#define FIND_RET_OK 1 |
44 |
#define FIND_RET_WAIT 2 |
45 |
|
46 |
struct BDRVCURLState;
|
47 |
|
48 |
typedef struct CURLAIOCB { |
49 |
BlockDriverAIOCB common; |
50 |
QEMUBH *bh; |
51 |
QEMUIOVector *qiov; |
52 |
|
53 |
int64_t sector_num; |
54 |
int nb_sectors;
|
55 |
|
56 |
size_t start; |
57 |
size_t end; |
58 |
} CURLAIOCB; |
59 |
|
60 |
typedef struct CURLState |
61 |
{ |
62 |
struct BDRVCURLState *s;
|
63 |
CURLAIOCB *acb[CURL_NUM_ACB]; |
64 |
CURL *curl; |
65 |
char *orig_buf;
|
66 |
size_t buf_start; |
67 |
size_t buf_off; |
68 |
size_t buf_len; |
69 |
char range[128]; |
70 |
char errmsg[CURL_ERROR_SIZE];
|
71 |
char in_use;
|
72 |
} CURLState; |
73 |
|
74 |
typedef struct BDRVCURLState { |
75 |
CURLM *multi; |
76 |
size_t len; |
77 |
CURLState states[CURL_NUM_STATES]; |
78 |
char *url;
|
79 |
size_t readahead_size; |
80 |
} BDRVCURLState; |
81 |
|
82 |
static void curl_clean_state(CURLState *s); |
83 |
static void curl_multi_do(void *arg); |
84 |
static int curl_aio_flush(void *opaque); |
85 |
|
86 |
static int curl_sock_cb(CURL *curl, curl_socket_t fd, int action, |
87 |
void *s, void *sp) |
88 |
{ |
89 |
DPRINTF("CURL (AIO): Sock action %d on fd %d\n", action, fd);
|
90 |
switch (action) {
|
91 |
case CURL_POLL_IN:
|
92 |
qemu_aio_set_fd_handler(fd, curl_multi_do, NULL, curl_aio_flush, s);
|
93 |
break;
|
94 |
case CURL_POLL_OUT:
|
95 |
qemu_aio_set_fd_handler(fd, NULL, curl_multi_do, curl_aio_flush, s);
|
96 |
break;
|
97 |
case CURL_POLL_INOUT:
|
98 |
qemu_aio_set_fd_handler(fd, curl_multi_do, curl_multi_do, |
99 |
curl_aio_flush, s); |
100 |
break;
|
101 |
case CURL_POLL_REMOVE:
|
102 |
qemu_aio_set_fd_handler(fd, NULL, NULL, NULL, NULL); |
103 |
break;
|
104 |
} |
105 |
|
106 |
return 0; |
107 |
} |
108 |
|
109 |
static size_t curl_size_cb(void *ptr, size_t size, size_t nmemb, void *opaque) |
110 |
{ |
111 |
CURLState *s = ((CURLState*)opaque); |
112 |
size_t realsize = size * nmemb; |
113 |
size_t fsize; |
114 |
|
115 |
if(sscanf(ptr, "Content-Length: %zd", &fsize) == 1) { |
116 |
s->s->len = fsize; |
117 |
} |
118 |
|
119 |
return realsize;
|
120 |
} |
121 |
|
122 |
static size_t curl_read_cb(void *ptr, size_t size, size_t nmemb, void *opaque) |
123 |
{ |
124 |
CURLState *s = ((CURLState*)opaque); |
125 |
size_t realsize = size * nmemb; |
126 |
int i;
|
127 |
|
128 |
DPRINTF("CURL: Just reading %zd bytes\n", realsize);
|
129 |
|
130 |
if (!s || !s->orig_buf)
|
131 |
goto read_end;
|
132 |
|
133 |
memcpy(s->orig_buf + s->buf_off, ptr, realsize); |
134 |
s->buf_off += realsize; |
135 |
|
136 |
for(i=0; i<CURL_NUM_ACB; i++) { |
137 |
CURLAIOCB *acb = s->acb[i]; |
138 |
|
139 |
if (!acb)
|
140 |
continue;
|
141 |
|
142 |
if ((s->buf_off >= acb->end)) {
|
143 |
qemu_iovec_from_buf(acb->qiov, 0, s->orig_buf + acb->start,
|
144 |
acb->end - acb->start); |
145 |
acb->common.cb(acb->common.opaque, 0);
|
146 |
qemu_aio_release(acb); |
147 |
s->acb[i] = NULL;
|
148 |
} |
149 |
} |
150 |
|
151 |
read_end:
|
152 |
return realsize;
|
153 |
} |
154 |
|
155 |
static int curl_find_buf(BDRVCURLState *s, size_t start, size_t len, |
156 |
CURLAIOCB *acb) |
157 |
{ |
158 |
int i;
|
159 |
size_t end = start + len; |
160 |
|
161 |
for (i=0; i<CURL_NUM_STATES; i++) { |
162 |
CURLState *state = &s->states[i]; |
163 |
size_t buf_end = (state->buf_start + state->buf_off); |
164 |
size_t buf_fend = (state->buf_start + state->buf_len); |
165 |
|
166 |
if (!state->orig_buf)
|
167 |
continue;
|
168 |
if (!state->buf_off)
|
169 |
continue;
|
170 |
|
171 |
// Does the existing buffer cover our section?
|
172 |
if ((start >= state->buf_start) &&
|
173 |
(start <= buf_end) && |
174 |
(end >= state->buf_start) && |
175 |
(end <= buf_end)) |
176 |
{ |
177 |
char *buf = state->orig_buf + (start - state->buf_start);
|
178 |
|
179 |
qemu_iovec_from_buf(acb->qiov, 0, buf, len);
|
180 |
acb->common.cb(acb->common.opaque, 0);
|
181 |
|
182 |
return FIND_RET_OK;
|
183 |
} |
184 |
|
185 |
// Wait for unfinished chunks
|
186 |
if ((start >= state->buf_start) &&
|
187 |
(start <= buf_fend) && |
188 |
(end >= state->buf_start) && |
189 |
(end <= buf_fend)) |
190 |
{ |
191 |
int j;
|
192 |
|
193 |
acb->start = start - state->buf_start; |
194 |
acb->end = acb->start + len; |
195 |
|
196 |
for (j=0; j<CURL_NUM_ACB; j++) { |
197 |
if (!state->acb[j]) {
|
198 |
state->acb[j] = acb; |
199 |
return FIND_RET_WAIT;
|
200 |
} |
201 |
} |
202 |
} |
203 |
} |
204 |
|
205 |
return FIND_RET_NONE;
|
206 |
} |
207 |
|
208 |
static void curl_multi_do(void *arg) |
209 |
{ |
210 |
BDRVCURLState *s = (BDRVCURLState *)arg; |
211 |
int running;
|
212 |
int r;
|
213 |
int msgs_in_queue;
|
214 |
|
215 |
if (!s->multi)
|
216 |
return;
|
217 |
|
218 |
do {
|
219 |
r = curl_multi_socket_all(s->multi, &running); |
220 |
} while(r == CURLM_CALL_MULTI_PERFORM);
|
221 |
|
222 |
/* Try to find done transfers, so we can free the easy
|
223 |
* handle again. */
|
224 |
do {
|
225 |
CURLMsg *msg; |
226 |
msg = curl_multi_info_read(s->multi, &msgs_in_queue); |
227 |
|
228 |
if (!msg)
|
229 |
break;
|
230 |
if (msg->msg == CURLMSG_NONE)
|
231 |
break;
|
232 |
|
233 |
switch (msg->msg) {
|
234 |
case CURLMSG_DONE:
|
235 |
{ |
236 |
CURLState *state = NULL;
|
237 |
curl_easy_getinfo(msg->easy_handle, CURLINFO_PRIVATE, (char**)&state);
|
238 |
|
239 |
/* ACBs for successful messages get completed in curl_read_cb */
|
240 |
if (msg->data.result != CURLE_OK) {
|
241 |
int i;
|
242 |
for (i = 0; i < CURL_NUM_ACB; i++) { |
243 |
CURLAIOCB *acb = state->acb[i]; |
244 |
|
245 |
if (acb == NULL) { |
246 |
continue;
|
247 |
} |
248 |
|
249 |
acb->common.cb(acb->common.opaque, -EIO); |
250 |
qemu_aio_release(acb); |
251 |
state->acb[i] = NULL;
|
252 |
} |
253 |
} |
254 |
|
255 |
curl_clean_state(state); |
256 |
break;
|
257 |
} |
258 |
default:
|
259 |
msgs_in_queue = 0;
|
260 |
break;
|
261 |
} |
262 |
} while(msgs_in_queue);
|
263 |
} |
264 |
|
265 |
static CURLState *curl_init_state(BDRVCURLState *s)
|
266 |
{ |
267 |
CURLState *state = NULL;
|
268 |
int i, j;
|
269 |
|
270 |
do {
|
271 |
for (i=0; i<CURL_NUM_STATES; i++) { |
272 |
for (j=0; j<CURL_NUM_ACB; j++) |
273 |
if (s->states[i].acb[j])
|
274 |
continue;
|
275 |
if (s->states[i].in_use)
|
276 |
continue;
|
277 |
|
278 |
state = &s->states[i]; |
279 |
state->in_use = 1;
|
280 |
break;
|
281 |
} |
282 |
if (!state) {
|
283 |
g_usleep(100);
|
284 |
curl_multi_do(s); |
285 |
} |
286 |
} while(!state);
|
287 |
|
288 |
if (state->curl)
|
289 |
goto has_curl;
|
290 |
|
291 |
state->curl = curl_easy_init(); |
292 |
if (!state->curl)
|
293 |
return NULL; |
294 |
curl_easy_setopt(state->curl, CURLOPT_URL, s->url); |
295 |
curl_easy_setopt(state->curl, CURLOPT_TIMEOUT, 5);
|
296 |
curl_easy_setopt(state->curl, CURLOPT_WRITEFUNCTION, (void *)curl_read_cb);
|
297 |
curl_easy_setopt(state->curl, CURLOPT_WRITEDATA, (void *)state);
|
298 |
curl_easy_setopt(state->curl, CURLOPT_PRIVATE, (void *)state);
|
299 |
curl_easy_setopt(state->curl, CURLOPT_AUTOREFERER, 1);
|
300 |
curl_easy_setopt(state->curl, CURLOPT_FOLLOWLOCATION, 1);
|
301 |
curl_easy_setopt(state->curl, CURLOPT_NOSIGNAL, 1);
|
302 |
curl_easy_setopt(state->curl, CURLOPT_ERRORBUFFER, state->errmsg); |
303 |
curl_easy_setopt(state->curl, CURLOPT_FAILONERROR, 1);
|
304 |
|
305 |
#ifdef DEBUG_VERBOSE
|
306 |
curl_easy_setopt(state->curl, CURLOPT_VERBOSE, 1);
|
307 |
#endif
|
308 |
|
309 |
has_curl:
|
310 |
|
311 |
state->s = s; |
312 |
|
313 |
return state;
|
314 |
} |
315 |
|
316 |
static void curl_clean_state(CURLState *s) |
317 |
{ |
318 |
if (s->s->multi)
|
319 |
curl_multi_remove_handle(s->s->multi, s->curl); |
320 |
s->in_use = 0;
|
321 |
} |
322 |
|
323 |
static int curl_open(BlockDriverState *bs, const char *filename, int flags) |
324 |
{ |
325 |
BDRVCURLState *s = bs->opaque; |
326 |
CURLState *state = NULL;
|
327 |
double d;
|
328 |
|
329 |
#define RA_OPTSTR ":readahead=" |
330 |
char *file;
|
331 |
char *ra;
|
332 |
const char *ra_val; |
333 |
int parse_state = 0; |
334 |
|
335 |
static int inited = 0; |
336 |
|
337 |
file = g_strdup(filename); |
338 |
s->readahead_size = READ_AHEAD_SIZE; |
339 |
|
340 |
/* Parse a trailing ":readahead=#:" param, if present. */
|
341 |
ra = file + strlen(file) - 1;
|
342 |
while (ra >= file) {
|
343 |
if (parse_state == 0) { |
344 |
if (*ra == ':') |
345 |
parse_state++; |
346 |
else
|
347 |
break;
|
348 |
} else if (parse_state == 1) { |
349 |
if (*ra > '9' || *ra < '0') { |
350 |
char *opt_start = ra - strlen(RA_OPTSTR) + 1; |
351 |
if (opt_start > file &&
|
352 |
strncmp(opt_start, RA_OPTSTR, strlen(RA_OPTSTR)) == 0) {
|
353 |
ra_val = ra + 1;
|
354 |
ra -= strlen(RA_OPTSTR) - 1;
|
355 |
*ra = '\0';
|
356 |
s->readahead_size = atoi(ra_val); |
357 |
break;
|
358 |
} else {
|
359 |
break;
|
360 |
} |
361 |
} |
362 |
} |
363 |
ra--; |
364 |
} |
365 |
|
366 |
if ((s->readahead_size & 0x1ff) != 0) { |
367 |
fprintf(stderr, "HTTP_READAHEAD_SIZE %zd is not a multiple of 512\n",
|
368 |
s->readahead_size); |
369 |
goto out_noclean;
|
370 |
} |
371 |
|
372 |
if (!inited) {
|
373 |
curl_global_init(CURL_GLOBAL_ALL); |
374 |
inited = 1;
|
375 |
} |
376 |
|
377 |
DPRINTF("CURL: Opening %s\n", file);
|
378 |
s->url = file; |
379 |
state = curl_init_state(s); |
380 |
if (!state)
|
381 |
goto out_noclean;
|
382 |
|
383 |
// Get file size
|
384 |
|
385 |
curl_easy_setopt(state->curl, CURLOPT_NOBODY, 1);
|
386 |
curl_easy_setopt(state->curl, CURLOPT_WRITEFUNCTION, (void *)curl_size_cb);
|
387 |
if (curl_easy_perform(state->curl))
|
388 |
goto out;
|
389 |
curl_easy_getinfo(state->curl, CURLINFO_CONTENT_LENGTH_DOWNLOAD, &d); |
390 |
curl_easy_setopt(state->curl, CURLOPT_WRITEFUNCTION, (void *)curl_read_cb);
|
391 |
curl_easy_setopt(state->curl, CURLOPT_NOBODY, 0);
|
392 |
if (d)
|
393 |
s->len = (size_t)d; |
394 |
else if(!s->len) |
395 |
goto out;
|
396 |
DPRINTF("CURL: Size = %zd\n", s->len);
|
397 |
|
398 |
curl_clean_state(state); |
399 |
curl_easy_cleanup(state->curl); |
400 |
state->curl = NULL;
|
401 |
|
402 |
// Now we know the file exists and its size, so let's
|
403 |
// initialize the multi interface!
|
404 |
|
405 |
s->multi = curl_multi_init(); |
406 |
curl_multi_setopt( s->multi, CURLMOPT_SOCKETDATA, s); |
407 |
curl_multi_setopt( s->multi, CURLMOPT_SOCKETFUNCTION, curl_sock_cb ); |
408 |
curl_multi_do(s); |
409 |
|
410 |
return 0; |
411 |
|
412 |
out:
|
413 |
fprintf(stderr, "CURL: Error opening file: %s\n", state->errmsg);
|
414 |
curl_easy_cleanup(state->curl); |
415 |
state->curl = NULL;
|
416 |
out_noclean:
|
417 |
g_free(file); |
418 |
return -EINVAL;
|
419 |
} |
420 |
|
421 |
static int curl_aio_flush(void *opaque) |
422 |
{ |
423 |
BDRVCURLState *s = opaque; |
424 |
int i, j;
|
425 |
|
426 |
for (i=0; i < CURL_NUM_STATES; i++) { |
427 |
for(j=0; j < CURL_NUM_ACB; j++) { |
428 |
if (s->states[i].acb[j]) {
|
429 |
return 1; |
430 |
} |
431 |
} |
432 |
} |
433 |
return 0; |
434 |
} |
435 |
|
436 |
static void curl_aio_cancel(BlockDriverAIOCB *blockacb) |
437 |
{ |
438 |
// Do we have to implement canceling? Seems to work without...
|
439 |
} |
440 |
|
441 |
static AIOPool curl_aio_pool = {
|
442 |
.aiocb_size = sizeof(CURLAIOCB),
|
443 |
.cancel = curl_aio_cancel, |
444 |
}; |
445 |
|
446 |
|
447 |
static void curl_readv_bh_cb(void *p) |
448 |
{ |
449 |
CURLState *state; |
450 |
|
451 |
CURLAIOCB *acb = p; |
452 |
BDRVCURLState *s = acb->common.bs->opaque; |
453 |
|
454 |
qemu_bh_delete(acb->bh); |
455 |
acb->bh = NULL;
|
456 |
|
457 |
size_t start = acb->sector_num * SECTOR_SIZE; |
458 |
size_t end; |
459 |
|
460 |
// In case we have the requested data already (e.g. read-ahead),
|
461 |
// we can just call the callback and be done.
|
462 |
switch (curl_find_buf(s, start, acb->nb_sectors * SECTOR_SIZE, acb)) {
|
463 |
case FIND_RET_OK:
|
464 |
qemu_aio_release(acb); |
465 |
// fall through
|
466 |
case FIND_RET_WAIT:
|
467 |
return;
|
468 |
default:
|
469 |
break;
|
470 |
} |
471 |
|
472 |
// No cache found, so let's start a new request
|
473 |
state = curl_init_state(s); |
474 |
if (!state) {
|
475 |
acb->common.cb(acb->common.opaque, -EIO); |
476 |
qemu_aio_release(acb); |
477 |
return;
|
478 |
} |
479 |
|
480 |
acb->start = 0;
|
481 |
acb->end = (acb->nb_sectors * SECTOR_SIZE); |
482 |
|
483 |
state->buf_off = 0;
|
484 |
if (state->orig_buf)
|
485 |
g_free(state->orig_buf); |
486 |
state->buf_start = start; |
487 |
state->buf_len = acb->end + s->readahead_size; |
488 |
end = MIN(start + state->buf_len, s->len) - 1;
|
489 |
state->orig_buf = g_malloc(state->buf_len); |
490 |
state->acb[0] = acb;
|
491 |
|
492 |
snprintf(state->range, 127, "%zd-%zd", start, end); |
493 |
DPRINTF("CURL (AIO): Reading %d at %zd (%s)\n",
|
494 |
(acb->nb_sectors * SECTOR_SIZE), start, state->range); |
495 |
curl_easy_setopt(state->curl, CURLOPT_RANGE, state->range); |
496 |
|
497 |
curl_multi_add_handle(s->multi, state->curl); |
498 |
curl_multi_do(s); |
499 |
|
500 |
} |
501 |
|
502 |
static BlockDriverAIOCB *curl_aio_readv(BlockDriverState *bs,
|
503 |
int64_t sector_num, QEMUIOVector *qiov, int nb_sectors,
|
504 |
BlockDriverCompletionFunc *cb, void *opaque)
|
505 |
{ |
506 |
CURLAIOCB *acb; |
507 |
|
508 |
acb = qemu_aio_get(&curl_aio_pool, bs, cb, opaque); |
509 |
|
510 |
acb->qiov = qiov; |
511 |
acb->sector_num = sector_num; |
512 |
acb->nb_sectors = nb_sectors; |
513 |
|
514 |
acb->bh = qemu_bh_new(curl_readv_bh_cb, acb); |
515 |
|
516 |
if (!acb->bh) {
|
517 |
DPRINTF("CURL: qemu_bh_new failed\n");
|
518 |
return NULL; |
519 |
} |
520 |
|
521 |
qemu_bh_schedule(acb->bh); |
522 |
return &acb->common;
|
523 |
} |
524 |
|
525 |
static void curl_close(BlockDriverState *bs) |
526 |
{ |
527 |
BDRVCURLState *s = bs->opaque; |
528 |
int i;
|
529 |
|
530 |
DPRINTF("CURL: Close\n");
|
531 |
for (i=0; i<CURL_NUM_STATES; i++) { |
532 |
if (s->states[i].in_use)
|
533 |
curl_clean_state(&s->states[i]); |
534 |
if (s->states[i].curl) {
|
535 |
curl_easy_cleanup(s->states[i].curl); |
536 |
s->states[i].curl = NULL;
|
537 |
} |
538 |
if (s->states[i].orig_buf) {
|
539 |
g_free(s->states[i].orig_buf); |
540 |
s->states[i].orig_buf = NULL;
|
541 |
} |
542 |
} |
543 |
if (s->multi)
|
544 |
curl_multi_cleanup(s->multi); |
545 |
g_free(s->url); |
546 |
} |
547 |
|
548 |
static int64_t curl_getlength(BlockDriverState *bs)
|
549 |
{ |
550 |
BDRVCURLState *s = bs->opaque; |
551 |
return s->len;
|
552 |
} |
553 |
|
554 |
static BlockDriver bdrv_http = {
|
555 |
.format_name = "http",
|
556 |
.protocol_name = "http",
|
557 |
|
558 |
.instance_size = sizeof(BDRVCURLState),
|
559 |
.bdrv_file_open = curl_open, |
560 |
.bdrv_close = curl_close, |
561 |
.bdrv_getlength = curl_getlength, |
562 |
|
563 |
.bdrv_aio_readv = curl_aio_readv, |
564 |
}; |
565 |
|
566 |
static BlockDriver bdrv_https = {
|
567 |
.format_name = "https",
|
568 |
.protocol_name = "https",
|
569 |
|
570 |
.instance_size = sizeof(BDRVCURLState),
|
571 |
.bdrv_file_open = curl_open, |
572 |
.bdrv_close = curl_close, |
573 |
.bdrv_getlength = curl_getlength, |
574 |
|
575 |
.bdrv_aio_readv = curl_aio_readv, |
576 |
}; |
577 |
|
578 |
static BlockDriver bdrv_ftp = {
|
579 |
.format_name = "ftp",
|
580 |
.protocol_name = "ftp",
|
581 |
|
582 |
.instance_size = sizeof(BDRVCURLState),
|
583 |
.bdrv_file_open = curl_open, |
584 |
.bdrv_close = curl_close, |
585 |
.bdrv_getlength = curl_getlength, |
586 |
|
587 |
.bdrv_aio_readv = curl_aio_readv, |
588 |
}; |
589 |
|
590 |
static BlockDriver bdrv_ftps = {
|
591 |
.format_name = "ftps",
|
592 |
.protocol_name = "ftps",
|
593 |
|
594 |
.instance_size = sizeof(BDRVCURLState),
|
595 |
.bdrv_file_open = curl_open, |
596 |
.bdrv_close = curl_close, |
597 |
.bdrv_getlength = curl_getlength, |
598 |
|
599 |
.bdrv_aio_readv = curl_aio_readv, |
600 |
}; |
601 |
|
602 |
static BlockDriver bdrv_tftp = {
|
603 |
.format_name = "tftp",
|
604 |
.protocol_name = "tftp",
|
605 |
|
606 |
.instance_size = sizeof(BDRVCURLState),
|
607 |
.bdrv_file_open = curl_open, |
608 |
.bdrv_close = curl_close, |
609 |
.bdrv_getlength = curl_getlength, |
610 |
|
611 |
.bdrv_aio_readv = curl_aio_readv, |
612 |
}; |
613 |
|
614 |
static void curl_block_init(void) |
615 |
{ |
616 |
bdrv_register(&bdrv_http); |
617 |
bdrv_register(&bdrv_https); |
618 |
bdrv_register(&bdrv_ftp); |
619 |
bdrv_register(&bdrv_ftps); |
620 |
bdrv_register(&bdrv_tftp); |
621 |
} |
622 |
|
623 |
block_init(curl_block_init); |