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Commit | Line | Data |
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769ce76d AG |
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 | */ | |
80c71a24 | 24 | #include "qemu/osdep.h" |
da34e65c | 25 | #include "qapi/error.h" |
769ce76d | 26 | #include "qemu-common.h" |
796a060b | 27 | #include "qemu/error-report.h" |
737e150e | 28 | #include "block/block_int.h" |
97a3ea57 | 29 | #include "qapi/qmp/qbool.h" |
d49b6836 | 30 | #include "qapi/qmp/qstring.h" |
1bff9606 | 31 | #include "crypto/secret.h" |
769ce76d | 32 | #include <curl/curl.h> |
f348b6d1 | 33 | #include "qemu/cutils.h" |
769ce76d | 34 | |
41c23467 | 35 | // #define DEBUG_CURL |
769ce76d AG |
36 | // #define DEBUG_VERBOSE |
37 | ||
38 | #ifdef DEBUG_CURL | |
ed79f37d | 39 | #define DEBUG_CURL_PRINT 1 |
769ce76d | 40 | #else |
ed79f37d | 41 | #define DEBUG_CURL_PRINT 0 |
769ce76d | 42 | #endif |
ed79f37d ZJ |
43 | #define DPRINTF(fmt, ...) \ |
44 | do { \ | |
45 | if (DEBUG_CURL_PRINT) { \ | |
46 | fprintf(stderr, fmt, ## __VA_ARGS__); \ | |
47 | } \ | |
48 | } while (0) | |
769ce76d | 49 | |
031fd1be PM |
50 | #if LIBCURL_VERSION_NUM >= 0x071000 |
51 | /* The multi interface timer callback was introduced in 7.16.0 */ | |
52 | #define NEED_CURL_TIMER_CALLBACK | |
9aedd5a5 MB |
53 | #define HAVE_SOCKET_ACTION |
54 | #endif | |
55 | ||
56 | #ifndef HAVE_SOCKET_ACTION | |
57 | /* If curl_multi_socket_action isn't available, define it statically here in | |
58 | * terms of curl_multi_socket. Note that ev_bitmask will be ignored, which is | |
59 | * less efficient but still safe. */ | |
60 | static CURLMcode __curl_multi_socket_action(CURLM *multi_handle, | |
61 | curl_socket_t sockfd, | |
62 | int ev_bitmask, | |
63 | int *running_handles) | |
64 | { | |
65 | return curl_multi_socket(multi_handle, sockfd, running_handles); | |
66 | } | |
67 | #define curl_multi_socket_action __curl_multi_socket_action | |
031fd1be PM |
68 | #endif |
69 | ||
fb6d1bbd | 70 | #define PROTOCOLS (CURLPROTO_HTTP | CURLPROTO_HTTPS | \ |
23dce387 | 71 | CURLPROTO_FTP | CURLPROTO_FTPS) |
fb6d1bbd | 72 | |
769ce76d AG |
73 | #define CURL_NUM_STATES 8 |
74 | #define CURL_NUM_ACB 8 | |
e3542c67 | 75 | #define READ_AHEAD_DEFAULT (256 * 1024) |
212aefaa | 76 | #define CURL_TIMEOUT_DEFAULT 5 |
f76faeda | 77 | #define CURL_TIMEOUT_MAX 10000 |
769ce76d AG |
78 | |
79 | #define FIND_RET_NONE 0 | |
80 | #define FIND_RET_OK 1 | |
81 | #define FIND_RET_WAIT 2 | |
82 | ||
e3542c67 MB |
83 | #define CURL_BLOCK_OPT_URL "url" |
84 | #define CURL_BLOCK_OPT_READAHEAD "readahead" | |
97a3ea57 | 85 | #define CURL_BLOCK_OPT_SSLVERIFY "sslverify" |
212aefaa | 86 | #define CURL_BLOCK_OPT_TIMEOUT "timeout" |
a94f83d9 | 87 | #define CURL_BLOCK_OPT_COOKIE "cookie" |
327c8ebd | 88 | #define CURL_BLOCK_OPT_COOKIE_SECRET "cookie-secret" |
1bff9606 DB |
89 | #define CURL_BLOCK_OPT_USERNAME "username" |
90 | #define CURL_BLOCK_OPT_PASSWORD_SECRET "password-secret" | |
91 | #define CURL_BLOCK_OPT_PROXY_USERNAME "proxy-username" | |
92 | #define CURL_BLOCK_OPT_PROXY_PASSWORD_SECRET "proxy-password-secret" | |
e3542c67 | 93 | |
769ce76d AG |
94 | struct BDRVCURLState; |
95 | ||
96 | typedef struct CURLAIOCB { | |
7c84b1b8 | 97 | BlockAIOCB common; |
769ce76d | 98 | QEMUIOVector *qiov; |
363c3c85 NT |
99 | |
100 | int64_t sector_num; | |
101 | int nb_sectors; | |
102 | ||
769ce76d AG |
103 | size_t start; |
104 | size_t end; | |
105 | } CURLAIOCB; | |
106 | ||
ff5ca166 HR |
107 | typedef struct CURLSocket { |
108 | int fd; | |
109 | QLIST_ENTRY(CURLSocket) next; | |
110 | } CURLSocket; | |
111 | ||
769ce76d AG |
112 | typedef struct CURLState |
113 | { | |
114 | struct BDRVCURLState *s; | |
115 | CURLAIOCB *acb[CURL_NUM_ACB]; | |
116 | CURL *curl; | |
ff5ca166 | 117 | QLIST_HEAD(, CURLSocket) sockets; |
769ce76d AG |
118 | char *orig_buf; |
119 | size_t buf_start; | |
120 | size_t buf_off; | |
121 | size_t buf_len; | |
122 | char range[128]; | |
123 | char errmsg[CURL_ERROR_SIZE]; | |
124 | char in_use; | |
125 | } CURLState; | |
126 | ||
127 | typedef struct BDRVCURLState { | |
128 | CURLM *multi; | |
031fd1be | 129 | QEMUTimer timer; |
769ce76d AG |
130 | size_t len; |
131 | CURLState states[CURL_NUM_STATES]; | |
132 | char *url; | |
c76f4952 | 133 | size_t readahead_size; |
97a3ea57 | 134 | bool sslverify; |
f76faeda | 135 | uint64_t timeout; |
a94f83d9 | 136 | char *cookie; |
3494d650 | 137 | bool accept_range; |
63f0f45f | 138 | AioContext *aio_context; |
ba3186c4 | 139 | QemuMutex mutex; |
1bff9606 DB |
140 | char *username; |
141 | char *password; | |
142 | char *proxyusername; | |
143 | char *proxypassword; | |
769ce76d AG |
144 | } BDRVCURLState; |
145 | ||
146 | static void curl_clean_state(CURLState *s); | |
147 | static void curl_multi_do(void *arg); | |
838ef602 | 148 | static void curl_multi_read(void *arg); |
769ce76d | 149 | |
031fd1be | 150 | #ifdef NEED_CURL_TIMER_CALLBACK |
34db05e7 | 151 | /* Called from curl_multi_do_locked, with s->mutex held. */ |
031fd1be PM |
152 | static int curl_timer_cb(CURLM *multi, long timeout_ms, void *opaque) |
153 | { | |
154 | BDRVCURLState *s = opaque; | |
155 | ||
156 | DPRINTF("CURL: timer callback timeout_ms %ld\n", timeout_ms); | |
157 | if (timeout_ms == -1) { | |
158 | timer_del(&s->timer); | |
159 | } else { | |
160 | int64_t timeout_ns = (int64_t)timeout_ms * 1000 * 1000; | |
161 | timer_mod(&s->timer, | |
162 | qemu_clock_get_ns(QEMU_CLOCK_REALTIME) + timeout_ns); | |
163 | } | |
164 | return 0; | |
165 | } | |
166 | #endif | |
167 | ||
34db05e7 | 168 | /* Called from curl_multi_do_locked, with s->mutex held. */ |
769ce76d | 169 | static int curl_sock_cb(CURL *curl, curl_socket_t fd, int action, |
63f0f45f | 170 | void *userp, void *sp) |
769ce76d | 171 | { |
63f0f45f | 172 | BDRVCURLState *s; |
838ef602 | 173 | CURLState *state = NULL; |
ff5ca166 HR |
174 | CURLSocket *socket; |
175 | ||
838ef602 | 176 | curl_easy_getinfo(curl, CURLINFO_PRIVATE, (char **)&state); |
63f0f45f | 177 | s = state->s; |
838ef602 | 178 | |
ff5ca166 HR |
179 | QLIST_FOREACH(socket, &state->sockets, next) { |
180 | if (socket->fd == fd) { | |
181 | if (action == CURL_POLL_REMOVE) { | |
182 | QLIST_REMOVE(socket, next); | |
183 | g_free(socket); | |
184 | } | |
185 | break; | |
186 | } | |
187 | } | |
188 | if (!socket) { | |
189 | socket = g_new0(CURLSocket, 1); | |
190 | socket->fd = fd; | |
191 | QLIST_INSERT_HEAD(&state->sockets, socket, next); | |
192 | } | |
193 | socket = NULL; | |
194 | ||
92b6a160 | 195 | DPRINTF("CURL (AIO): Sock action %d on fd %d\n", action, (int)fd); |
769ce76d AG |
196 | switch (action) { |
197 | case CURL_POLL_IN: | |
dca21ef2 | 198 | aio_set_fd_handler(s->aio_context, fd, false, |
f6a51c84 | 199 | curl_multi_read, NULL, NULL, state); |
769ce76d AG |
200 | break; |
201 | case CURL_POLL_OUT: | |
dca21ef2 | 202 | aio_set_fd_handler(s->aio_context, fd, false, |
f6a51c84 | 203 | NULL, curl_multi_do, NULL, state); |
769ce76d AG |
204 | break; |
205 | case CURL_POLL_INOUT: | |
dca21ef2 | 206 | aio_set_fd_handler(s->aio_context, fd, false, |
f6a51c84 | 207 | curl_multi_read, curl_multi_do, NULL, state); |
769ce76d AG |
208 | break; |
209 | case CURL_POLL_REMOVE: | |
dca21ef2 | 210 | aio_set_fd_handler(s->aio_context, fd, false, |
f6a51c84 | 211 | NULL, NULL, NULL, NULL); |
769ce76d AG |
212 | break; |
213 | } | |
214 | ||
215 | return 0; | |
216 | } | |
217 | ||
34db05e7 | 218 | /* Called from curl_multi_do_locked, with s->mutex held. */ |
3494d650 | 219 | static size_t curl_header_cb(void *ptr, size_t size, size_t nmemb, void *opaque) |
769ce76d | 220 | { |
3494d650 | 221 | BDRVCURLState *s = opaque; |
769ce76d | 222 | size_t realsize = size * nmemb; |
3494d650 | 223 | const char *accept_line = "Accept-Ranges: bytes"; |
769ce76d | 224 | |
3494d650 FZ |
225 | if (realsize >= strlen(accept_line) |
226 | && strncmp((char *)ptr, accept_line, strlen(accept_line)) == 0) { | |
227 | s->accept_range = true; | |
0bfcd599 | 228 | } |
769ce76d AG |
229 | |
230 | return realsize; | |
231 | } | |
232 | ||
34db05e7 | 233 | /* Called from curl_multi_do_locked, with s->mutex held. */ |
769ce76d AG |
234 | static size_t curl_read_cb(void *ptr, size_t size, size_t nmemb, void *opaque) |
235 | { | |
236 | CURLState *s = ((CURLState*)opaque); | |
237 | size_t realsize = size * nmemb; | |
238 | int i; | |
239 | ||
0bfcd599 | 240 | DPRINTF("CURL: Just reading %zd bytes\n", realsize); |
769ce76d | 241 | |
4e767657 HR |
242 | if (!s || !s->orig_buf) { |
243 | goto read_end; | |
244 | } | |
769ce76d | 245 | |
6d4b9e55 FZ |
246 | if (s->buf_off >= s->buf_len) { |
247 | /* buffer full, read nothing */ | |
4e767657 | 248 | goto read_end; |
6d4b9e55 FZ |
249 | } |
250 | realsize = MIN(realsize, s->buf_len - s->buf_off); | |
769ce76d AG |
251 | memcpy(s->orig_buf + s->buf_off, ptr, realsize); |
252 | s->buf_off += realsize; | |
253 | ||
254 | for(i=0; i<CURL_NUM_ACB; i++) { | |
255 | CURLAIOCB *acb = s->acb[i]; | |
256 | ||
257 | if (!acb) | |
258 | continue; | |
259 | ||
260 | if ((s->buf_off >= acb->end)) { | |
4e504535 HR |
261 | size_t request_length = acb->nb_sectors * BDRV_SECTOR_SIZE; |
262 | ||
03396148 MT |
263 | qemu_iovec_from_buf(acb->qiov, 0, s->orig_buf + acb->start, |
264 | acb->end - acb->start); | |
4e504535 HR |
265 | |
266 | if (acb->end - acb->start < request_length) { | |
267 | size_t offset = acb->end - acb->start; | |
268 | qemu_iovec_memset(acb->qiov, offset, 0, | |
269 | request_length - offset); | |
270 | } | |
271 | ||
34db05e7 | 272 | qemu_mutex_unlock(&s->s->mutex); |
769ce76d | 273 | acb->common.cb(acb->common.opaque, 0); |
34db05e7 | 274 | qemu_mutex_lock(&s->s->mutex); |
8007429a | 275 | qemu_aio_unref(acb); |
769ce76d AG |
276 | s->acb[i] = NULL; |
277 | } | |
278 | } | |
279 | ||
4e767657 HR |
280 | read_end: |
281 | /* curl will error out if we do not return this value */ | |
282 | return size * nmemb; | |
769ce76d AG |
283 | } |
284 | ||
456af346 | 285 | /* Called with s->mutex held. */ |
769ce76d AG |
286 | static int curl_find_buf(BDRVCURLState *s, size_t start, size_t len, |
287 | CURLAIOCB *acb) | |
288 | { | |
289 | int i; | |
290 | size_t end = start + len; | |
4e504535 HR |
291 | size_t clamped_end = MIN(end, s->len); |
292 | size_t clamped_len = clamped_end - start; | |
769ce76d AG |
293 | |
294 | for (i=0; i<CURL_NUM_STATES; i++) { | |
295 | CURLState *state = &s->states[i]; | |
296 | size_t buf_end = (state->buf_start + state->buf_off); | |
297 | size_t buf_fend = (state->buf_start + state->buf_len); | |
298 | ||
299 | if (!state->orig_buf) | |
300 | continue; | |
301 | if (!state->buf_off) | |
302 | continue; | |
303 | ||
304 | // Does the existing buffer cover our section? | |
305 | if ((start >= state->buf_start) && | |
306 | (start <= buf_end) && | |
4e504535 HR |
307 | (clamped_end >= state->buf_start) && |
308 | (clamped_end <= buf_end)) | |
769ce76d AG |
309 | { |
310 | char *buf = state->orig_buf + (start - state->buf_start); | |
311 | ||
4e504535 HR |
312 | qemu_iovec_from_buf(acb->qiov, 0, buf, clamped_len); |
313 | if (clamped_len < len) { | |
314 | qemu_iovec_memset(acb->qiov, clamped_len, 0, len - clamped_len); | |
315 | } | |
769ce76d AG |
316 | return FIND_RET_OK; |
317 | } | |
318 | ||
319 | // Wait for unfinished chunks | |
b7079df4 MB |
320 | if (state->in_use && |
321 | (start >= state->buf_start) && | |
769ce76d | 322 | (start <= buf_fend) && |
4e504535 HR |
323 | (clamped_end >= state->buf_start) && |
324 | (clamped_end <= buf_fend)) | |
769ce76d AG |
325 | { |
326 | int j; | |
327 | ||
328 | acb->start = start - state->buf_start; | |
4e504535 | 329 | acb->end = acb->start + clamped_len; |
769ce76d AG |
330 | |
331 | for (j=0; j<CURL_NUM_ACB; j++) { | |
332 | if (!state->acb[j]) { | |
333 | state->acb[j] = acb; | |
334 | return FIND_RET_WAIT; | |
335 | } | |
336 | } | |
337 | } | |
338 | } | |
339 | ||
340 | return FIND_RET_NONE; | |
341 | } | |
342 | ||
ba3186c4 | 343 | /* Called with s->mutex held. */ |
838ef602 | 344 | static void curl_multi_check_completion(BDRVCURLState *s) |
769ce76d | 345 | { |
769ce76d AG |
346 | int msgs_in_queue; |
347 | ||
769ce76d AG |
348 | /* Try to find done transfers, so we can free the easy |
349 | * handle again. */ | |
1f2cead3 | 350 | for (;;) { |
769ce76d AG |
351 | CURLMsg *msg; |
352 | msg = curl_multi_info_read(s->multi, &msgs_in_queue); | |
353 | ||
1f2cead3 | 354 | /* Quit when there are no more completions */ |
769ce76d AG |
355 | if (!msg) |
356 | break; | |
769ce76d | 357 | |
1f2cead3 MB |
358 | if (msg->msg == CURLMSG_DONE) { |
359 | CURLState *state = NULL; | |
360 | curl_easy_getinfo(msg->easy_handle, CURLINFO_PRIVATE, | |
361 | (char **)&state); | |
362 | ||
363 | /* ACBs for successful messages get completed in curl_read_cb */ | |
364 | if (msg->data.result != CURLE_OK) { | |
365 | int i; | |
796a060b RJ |
366 | static int errcount = 100; |
367 | ||
368 | /* Don't lose the original error message from curl, since | |
369 | * it contains extra data. | |
370 | */ | |
371 | if (errcount > 0) { | |
372 | error_report("curl: %s", state->errmsg); | |
373 | if (--errcount == 0) { | |
374 | error_report("curl: further errors suppressed"); | |
375 | } | |
376 | } | |
377 | ||
1f2cead3 MB |
378 | for (i = 0; i < CURL_NUM_ACB; i++) { |
379 | CURLAIOCB *acb = state->acb[i]; | |
380 | ||
381 | if (acb == NULL) { | |
382 | continue; | |
f785a5ae | 383 | } |
f785a5ae | 384 | |
ba3186c4 | 385 | qemu_mutex_unlock(&s->mutex); |
eb048026 | 386 | acb->common.cb(acb->common.opaque, -EIO); |
ba3186c4 | 387 | qemu_mutex_lock(&s->mutex); |
8007429a | 388 | qemu_aio_unref(acb); |
1f2cead3 MB |
389 | state->acb[i] = NULL; |
390 | } | |
769ce76d | 391 | } |
1f2cead3 MB |
392 | |
393 | curl_clean_state(state); | |
394 | break; | |
769ce76d | 395 | } |
1f2cead3 | 396 | } |
769ce76d AG |
397 | } |
398 | ||
ba3186c4 | 399 | /* Called with s->mutex held. */ |
9d456654 | 400 | static void curl_multi_do_locked(CURLState *s) |
031fd1be | 401 | { |
ff5ca166 | 402 | CURLSocket *socket, *next_socket; |
031fd1be PM |
403 | int running; |
404 | int r; | |
405 | ||
838ef602 | 406 | if (!s->s->multi) { |
031fd1be PM |
407 | return; |
408 | } | |
409 | ||
ff5ca166 HR |
410 | /* Need to use _SAFE because curl_multi_socket_action() may trigger |
411 | * curl_sock_cb() which might modify this list */ | |
412 | QLIST_FOREACH_SAFE(socket, &s->sockets, next, next_socket) { | |
413 | do { | |
414 | r = curl_multi_socket_action(s->s->multi, socket->fd, 0, &running); | |
415 | } while (r == CURLM_CALL_MULTI_PERFORM); | |
416 | } | |
838ef602 MB |
417 | } |
418 | ||
9d456654 PB |
419 | static void curl_multi_do(void *arg) |
420 | { | |
421 | CURLState *s = (CURLState *)arg; | |
422 | ||
ba3186c4 | 423 | qemu_mutex_lock(&s->s->mutex); |
9d456654 | 424 | curl_multi_do_locked(s); |
ba3186c4 | 425 | qemu_mutex_unlock(&s->s->mutex); |
9d456654 PB |
426 | } |
427 | ||
838ef602 MB |
428 | static void curl_multi_read(void *arg) |
429 | { | |
430 | CURLState *s = (CURLState *)arg; | |
431 | ||
ba3186c4 | 432 | qemu_mutex_lock(&s->s->mutex); |
9d456654 | 433 | curl_multi_do_locked(s); |
838ef602 | 434 | curl_multi_check_completion(s->s); |
ba3186c4 | 435 | qemu_mutex_unlock(&s->s->mutex); |
031fd1be PM |
436 | } |
437 | ||
438 | static void curl_multi_timeout_do(void *arg) | |
439 | { | |
440 | #ifdef NEED_CURL_TIMER_CALLBACK | |
441 | BDRVCURLState *s = (BDRVCURLState *)arg; | |
442 | int running; | |
443 | ||
444 | if (!s->multi) { | |
445 | return; | |
446 | } | |
447 | ||
ba3186c4 | 448 | qemu_mutex_lock(&s->mutex); |
031fd1be PM |
449 | curl_multi_socket_action(s->multi, CURL_SOCKET_TIMEOUT, 0, &running); |
450 | ||
838ef602 | 451 | curl_multi_check_completion(s); |
ba3186c4 | 452 | qemu_mutex_unlock(&s->mutex); |
031fd1be PM |
453 | #else |
454 | abort(); | |
455 | #endif | |
456 | } | |
457 | ||
456af346 | 458 | /* Called with s->mutex held. */ |
a2f468e4 | 459 | static CURLState *curl_init_state(BlockDriverState *bs, BDRVCURLState *s) |
769ce76d AG |
460 | { |
461 | CURLState *state = NULL; | |
462 | int i, j; | |
463 | ||
464 | do { | |
465 | for (i=0; i<CURL_NUM_STATES; i++) { | |
466 | for (j=0; j<CURL_NUM_ACB; j++) | |
467 | if (s->states[i].acb[j]) | |
468 | continue; | |
469 | if (s->states[i].in_use) | |
470 | continue; | |
471 | ||
472 | state = &s->states[i]; | |
473 | state->in_use = 1; | |
474 | break; | |
475 | } | |
476 | if (!state) { | |
456af346 | 477 | qemu_mutex_unlock(&s->mutex); |
a2f468e4 | 478 | aio_poll(bdrv_get_aio_context(bs), true); |
456af346 | 479 | qemu_mutex_lock(&s->mutex); |
769ce76d AG |
480 | } |
481 | } while(!state); | |
482 | ||
9e550b32 MB |
483 | if (!state->curl) { |
484 | state->curl = curl_easy_init(); | |
485 | if (!state->curl) { | |
486 | return NULL; | |
487 | } | |
488 | curl_easy_setopt(state->curl, CURLOPT_URL, s->url); | |
97a3ea57 MB |
489 | curl_easy_setopt(state->curl, CURLOPT_SSL_VERIFYPEER, |
490 | (long) s->sslverify); | |
a94f83d9 RJ |
491 | if (s->cookie) { |
492 | curl_easy_setopt(state->curl, CURLOPT_COOKIE, s->cookie); | |
493 | } | |
f76faeda | 494 | curl_easy_setopt(state->curl, CURLOPT_TIMEOUT, (long)s->timeout); |
9e550b32 MB |
495 | curl_easy_setopt(state->curl, CURLOPT_WRITEFUNCTION, |
496 | (void *)curl_read_cb); | |
497 | curl_easy_setopt(state->curl, CURLOPT_WRITEDATA, (void *)state); | |
498 | curl_easy_setopt(state->curl, CURLOPT_PRIVATE, (void *)state); | |
499 | curl_easy_setopt(state->curl, CURLOPT_AUTOREFERER, 1); | |
500 | curl_easy_setopt(state->curl, CURLOPT_FOLLOWLOCATION, 1); | |
501 | curl_easy_setopt(state->curl, CURLOPT_NOSIGNAL, 1); | |
502 | curl_easy_setopt(state->curl, CURLOPT_ERRORBUFFER, state->errmsg); | |
503 | curl_easy_setopt(state->curl, CURLOPT_FAILONERROR, 1); | |
504 | ||
1bff9606 DB |
505 | if (s->username) { |
506 | curl_easy_setopt(state->curl, CURLOPT_USERNAME, s->username); | |
507 | } | |
508 | if (s->password) { | |
509 | curl_easy_setopt(state->curl, CURLOPT_PASSWORD, s->password); | |
510 | } | |
511 | if (s->proxyusername) { | |
512 | curl_easy_setopt(state->curl, | |
513 | CURLOPT_PROXYUSERNAME, s->proxyusername); | |
514 | } | |
515 | if (s->proxypassword) { | |
516 | curl_easy_setopt(state->curl, | |
517 | CURLOPT_PROXYPASSWORD, s->proxypassword); | |
518 | } | |
519 | ||
9e550b32 MB |
520 | /* Restrict supported protocols to avoid security issues in the more |
521 | * obscure protocols. For example, do not allow POP3/SMTP/IMAP see | |
522 | * CVE-2013-0249. | |
523 | * | |
524 | * Restricting protocols is only supported from 7.19.4 upwards. | |
525 | */ | |
8a8f5840 | 526 | #if LIBCURL_VERSION_NUM >= 0x071304 |
9e550b32 MB |
527 | curl_easy_setopt(state->curl, CURLOPT_PROTOCOLS, PROTOCOLS); |
528 | curl_easy_setopt(state->curl, CURLOPT_REDIR_PROTOCOLS, PROTOCOLS); | |
8a8f5840 | 529 | #endif |
fb6d1bbd | 530 | |
769ce76d | 531 | #ifdef DEBUG_VERBOSE |
9e550b32 | 532 | curl_easy_setopt(state->curl, CURLOPT_VERBOSE, 1); |
769ce76d | 533 | #endif |
9e550b32 | 534 | } |
769ce76d | 535 | |
ff5ca166 | 536 | QLIST_INIT(&state->sockets); |
769ce76d AG |
537 | state->s = s; |
538 | ||
539 | return state; | |
540 | } | |
541 | ||
456af346 | 542 | /* Called with s->mutex held. */ |
769ce76d AG |
543 | static void curl_clean_state(CURLState *s) |
544 | { | |
675a7756 PB |
545 | int j; |
546 | for (j = 0; j < CURL_NUM_ACB; j++) { | |
547 | assert(!s->acb[j]); | |
548 | } | |
549 | ||
769ce76d AG |
550 | if (s->s->multi) |
551 | curl_multi_remove_handle(s->s->multi, s->curl); | |
ff5ca166 HR |
552 | |
553 | while (!QLIST_EMPTY(&s->sockets)) { | |
554 | CURLSocket *socket = QLIST_FIRST(&s->sockets); | |
555 | ||
556 | QLIST_REMOVE(socket, next); | |
557 | g_free(socket); | |
558 | } | |
559 | ||
769ce76d AG |
560 | s->in_use = 0; |
561 | } | |
562 | ||
8e6d58cd KW |
563 | static void curl_parse_filename(const char *filename, QDict *options, |
564 | Error **errp) | |
769ce76d | 565 | { |
46f5ac20 | 566 | qdict_put_str(options, CURL_BLOCK_OPT_URL, filename); |
8e6d58cd KW |
567 | } |
568 | ||
63f0f45f SH |
569 | static void curl_detach_aio_context(BlockDriverState *bs) |
570 | { | |
571 | BDRVCURLState *s = bs->opaque; | |
572 | int i; | |
573 | ||
456af346 | 574 | qemu_mutex_lock(&s->mutex); |
63f0f45f SH |
575 | for (i = 0; i < CURL_NUM_STATES; i++) { |
576 | if (s->states[i].in_use) { | |
577 | curl_clean_state(&s->states[i]); | |
578 | } | |
579 | if (s->states[i].curl) { | |
580 | curl_easy_cleanup(s->states[i].curl); | |
581 | s->states[i].curl = NULL; | |
582 | } | |
f7047c2d MA |
583 | g_free(s->states[i].orig_buf); |
584 | s->states[i].orig_buf = NULL; | |
63f0f45f SH |
585 | } |
586 | if (s->multi) { | |
587 | curl_multi_cleanup(s->multi); | |
588 | s->multi = NULL; | |
589 | } | |
456af346 | 590 | qemu_mutex_unlock(&s->mutex); |
63f0f45f SH |
591 | |
592 | timer_del(&s->timer); | |
593 | } | |
594 | ||
595 | static void curl_attach_aio_context(BlockDriverState *bs, | |
596 | AioContext *new_context) | |
597 | { | |
598 | BDRVCURLState *s = bs->opaque; | |
599 | ||
600 | aio_timer_init(new_context, &s->timer, | |
601 | QEMU_CLOCK_REALTIME, SCALE_NS, | |
602 | curl_multi_timeout_do, s); | |
603 | ||
604 | assert(!s->multi); | |
605 | s->multi = curl_multi_init(); | |
606 | s->aio_context = new_context; | |
607 | curl_multi_setopt(s->multi, CURLMOPT_SOCKETFUNCTION, curl_sock_cb); | |
608 | #ifdef NEED_CURL_TIMER_CALLBACK | |
609 | curl_multi_setopt(s->multi, CURLMOPT_TIMERDATA, s); | |
610 | curl_multi_setopt(s->multi, CURLMOPT_TIMERFUNCTION, curl_timer_cb); | |
611 | #endif | |
612 | } | |
613 | ||
8e6d58cd KW |
614 | static QemuOptsList runtime_opts = { |
615 | .name = "curl", | |
616 | .head = QTAILQ_HEAD_INITIALIZER(runtime_opts.head), | |
617 | .desc = { | |
618 | { | |
e3542c67 | 619 | .name = CURL_BLOCK_OPT_URL, |
8e6d58cd KW |
620 | .type = QEMU_OPT_STRING, |
621 | .help = "URL to open", | |
622 | }, | |
623 | { | |
e3542c67 | 624 | .name = CURL_BLOCK_OPT_READAHEAD, |
8e6d58cd KW |
625 | .type = QEMU_OPT_SIZE, |
626 | .help = "Readahead size", | |
627 | }, | |
97a3ea57 MB |
628 | { |
629 | .name = CURL_BLOCK_OPT_SSLVERIFY, | |
630 | .type = QEMU_OPT_BOOL, | |
631 | .help = "Verify SSL certificate" | |
632 | }, | |
212aefaa DHB |
633 | { |
634 | .name = CURL_BLOCK_OPT_TIMEOUT, | |
635 | .type = QEMU_OPT_NUMBER, | |
636 | .help = "Curl timeout" | |
637 | }, | |
a94f83d9 RJ |
638 | { |
639 | .name = CURL_BLOCK_OPT_COOKIE, | |
640 | .type = QEMU_OPT_STRING, | |
641 | .help = "Pass the cookie or list of cookies with each request" | |
642 | }, | |
327c8ebd PK |
643 | { |
644 | .name = CURL_BLOCK_OPT_COOKIE_SECRET, | |
645 | .type = QEMU_OPT_STRING, | |
646 | .help = "ID of secret used as cookie passed with each request" | |
647 | }, | |
1bff9606 DB |
648 | { |
649 | .name = CURL_BLOCK_OPT_USERNAME, | |
650 | .type = QEMU_OPT_STRING, | |
651 | .help = "Username for HTTP auth" | |
652 | }, | |
653 | { | |
654 | .name = CURL_BLOCK_OPT_PASSWORD_SECRET, | |
655 | .type = QEMU_OPT_STRING, | |
656 | .help = "ID of secret used as password for HTTP auth", | |
657 | }, | |
658 | { | |
659 | .name = CURL_BLOCK_OPT_PROXY_USERNAME, | |
660 | .type = QEMU_OPT_STRING, | |
661 | .help = "Username for HTTP proxy auth" | |
662 | }, | |
663 | { | |
664 | .name = CURL_BLOCK_OPT_PROXY_PASSWORD_SECRET, | |
665 | .type = QEMU_OPT_STRING, | |
666 | .help = "ID of secret used as password for HTTP proxy auth", | |
667 | }, | |
8e6d58cd KW |
668 | { /* end of list */ } |
669 | }, | |
670 | }; | |
671 | ||
1bff9606 | 672 | |
015a1036 HR |
673 | static int curl_open(BlockDriverState *bs, QDict *options, int flags, |
674 | Error **errp) | |
8e6d58cd KW |
675 | { |
676 | BDRVCURLState *s = bs->opaque; | |
677 | CURLState *state = NULL; | |
678 | QemuOpts *opts; | |
679 | Error *local_err = NULL; | |
680 | const char *file; | |
a94f83d9 | 681 | const char *cookie; |
327c8ebd | 682 | const char *cookie_secret; |
8e6d58cd | 683 | double d; |
1bff9606 | 684 | const char *secretid; |
34634ca2 | 685 | const char *protocol_delimiter; |
8e6d58cd KW |
686 | |
687 | static int inited = 0; | |
688 | ||
a7cea2ba | 689 | if (flags & BDRV_O_RDWR) { |
2a94fee3 | 690 | error_setg(errp, "curl block device does not support writes"); |
a7cea2ba RJ |
691 | return -EROFS; |
692 | } | |
693 | ||
456af346 | 694 | qemu_mutex_init(&s->mutex); |
87ea75d5 | 695 | opts = qemu_opts_create(&runtime_opts, NULL, 0, &error_abort); |
8e6d58cd | 696 | qemu_opts_absorb_qdict(opts, options, &local_err); |
84d18f06 | 697 | if (local_err) { |
2a94fee3 | 698 | error_propagate(errp, local_err); |
8e6d58cd KW |
699 | goto out_noclean; |
700 | } | |
701 | ||
e3542c67 MB |
702 | s->readahead_size = qemu_opt_get_size(opts, CURL_BLOCK_OPT_READAHEAD, |
703 | READ_AHEAD_DEFAULT); | |
c76f4952 | 704 | if ((s->readahead_size & 0x1ff) != 0) { |
2a94fee3 PB |
705 | error_setg(errp, "HTTP_READAHEAD_SIZE %zd is not a multiple of 512", |
706 | s->readahead_size); | |
c76f4952 N |
707 | goto out_noclean; |
708 | } | |
709 | ||
212aefaa DHB |
710 | s->timeout = qemu_opt_get_number(opts, CURL_BLOCK_OPT_TIMEOUT, |
711 | CURL_TIMEOUT_DEFAULT); | |
f76faeda RJ |
712 | if (s->timeout > CURL_TIMEOUT_MAX) { |
713 | error_setg(errp, "timeout parameter is too large or negative"); | |
714 | goto out_noclean; | |
715 | } | |
212aefaa | 716 | |
97a3ea57 MB |
717 | s->sslverify = qemu_opt_get_bool(opts, CURL_BLOCK_OPT_SSLVERIFY, true); |
718 | ||
a94f83d9 | 719 | cookie = qemu_opt_get(opts, CURL_BLOCK_OPT_COOKIE); |
327c8ebd PK |
720 | cookie_secret = qemu_opt_get(opts, CURL_BLOCK_OPT_COOKIE_SECRET); |
721 | ||
722 | if (cookie && cookie_secret) { | |
723 | error_setg(errp, | |
724 | "curl driver cannot handle both cookie and cookie secret"); | |
725 | goto out_noclean; | |
726 | } | |
727 | ||
728 | if (cookie_secret) { | |
729 | s->cookie = qcrypto_secret_lookup_as_utf8(cookie_secret, errp); | |
730 | if (!s->cookie) { | |
731 | goto out_noclean; | |
732 | } | |
733 | } else { | |
734 | s->cookie = g_strdup(cookie); | |
735 | } | |
a94f83d9 | 736 | |
e3542c67 | 737 | file = qemu_opt_get(opts, CURL_BLOCK_OPT_URL); |
8e6d58cd | 738 | if (file == NULL) { |
2a94fee3 | 739 | error_setg(errp, "curl block driver requires an 'url' option"); |
8e6d58cd KW |
740 | goto out_noclean; |
741 | } | |
742 | ||
34634ca2 HR |
743 | if (!strstart(file, bs->drv->protocol_name, &protocol_delimiter) || |
744 | !strstart(protocol_delimiter, "://", NULL)) | |
745 | { | |
746 | error_setg(errp, "%s curl driver cannot handle the URL '%s' (does not " | |
747 | "start with '%s://')", bs->drv->protocol_name, file, | |
748 | bs->drv->protocol_name); | |
749 | goto out_noclean; | |
750 | } | |
751 | ||
1bff9606 DB |
752 | s->username = g_strdup(qemu_opt_get(opts, CURL_BLOCK_OPT_USERNAME)); |
753 | secretid = qemu_opt_get(opts, CURL_BLOCK_OPT_PASSWORD_SECRET); | |
754 | ||
755 | if (secretid) { | |
756 | s->password = qcrypto_secret_lookup_as_utf8(secretid, errp); | |
757 | if (!s->password) { | |
758 | goto out_noclean; | |
759 | } | |
760 | } | |
761 | ||
762 | s->proxyusername = g_strdup( | |
763 | qemu_opt_get(opts, CURL_BLOCK_OPT_PROXY_USERNAME)); | |
764 | secretid = qemu_opt_get(opts, CURL_BLOCK_OPT_PROXY_PASSWORD_SECRET); | |
765 | if (secretid) { | |
766 | s->proxypassword = qcrypto_secret_lookup_as_utf8(secretid, errp); | |
767 | if (!s->proxypassword) { | |
768 | goto out_noclean; | |
769 | } | |
770 | } | |
771 | ||
769ce76d AG |
772 | if (!inited) { |
773 | curl_global_init(CURL_GLOBAL_ALL); | |
774 | inited = 1; | |
775 | } | |
776 | ||
d0f2c4c6 | 777 | DPRINTF("CURL: Opening %s\n", file); |
63f0f45f | 778 | s->aio_context = bdrv_get_aio_context(bs); |
8e6d58cd | 779 | s->url = g_strdup(file); |
456af346 | 780 | qemu_mutex_lock(&s->mutex); |
a2f468e4 | 781 | state = curl_init_state(bs, s); |
456af346 | 782 | qemu_mutex_unlock(&s->mutex); |
769ce76d AG |
783 | if (!state) |
784 | goto out_noclean; | |
785 | ||
786 | // Get file size | |
787 | ||
3494d650 | 788 | s->accept_range = false; |
769ce76d | 789 | curl_easy_setopt(state->curl, CURLOPT_NOBODY, 1); |
3494d650 FZ |
790 | curl_easy_setopt(state->curl, CURLOPT_HEADERFUNCTION, |
791 | curl_header_cb); | |
792 | curl_easy_setopt(state->curl, CURLOPT_HEADERDATA, s); | |
769ce76d AG |
793 | if (curl_easy_perform(state->curl)) |
794 | goto out; | |
a41c4578 | 795 | if (curl_easy_getinfo(state->curl, CURLINFO_CONTENT_LENGTH_DOWNLOAD, &d)) { |
769ce76d | 796 | goto out; |
a41c4578 TG |
797 | } |
798 | /* Prior CURL 7.19.4 return value of 0 could mean that the file size is not | |
799 | * know or the size is zero. From 7.19.4 CURL returns -1 if size is not | |
800 | * known and zero if it is realy zero-length file. */ | |
801 | #if LIBCURL_VERSION_NUM >= 0x071304 | |
802 | if (d < 0) { | |
803 | pstrcpy(state->errmsg, CURL_ERROR_SIZE, | |
804 | "Server didn't report file size."); | |
805 | goto out; | |
806 | } | |
807 | #else | |
808 | if (d <= 0) { | |
809 | pstrcpy(state->errmsg, CURL_ERROR_SIZE, | |
810 | "Unknown file size or zero-length file."); | |
811 | goto out; | |
812 | } | |
813 | #endif | |
814 | ||
815 | s->len = (size_t)d; | |
816 | ||
3494d650 FZ |
817 | if ((!strncasecmp(s->url, "http://", strlen("http://")) |
818 | || !strncasecmp(s->url, "https://", strlen("https://"))) | |
819 | && !s->accept_range) { | |
820 | pstrcpy(state->errmsg, CURL_ERROR_SIZE, | |
821 | "Server does not support 'range' (byte ranges)."); | |
822 | goto out; | |
823 | } | |
0bfcd599 | 824 | DPRINTF("CURL: Size = %zd\n", s->len); |
769ce76d | 825 | |
456af346 | 826 | qemu_mutex_lock(&s->mutex); |
769ce76d | 827 | curl_clean_state(state); |
456af346 | 828 | qemu_mutex_unlock(&s->mutex); |
769ce76d AG |
829 | curl_easy_cleanup(state->curl); |
830 | state->curl = NULL; | |
831 | ||
63f0f45f | 832 | curl_attach_aio_context(bs, bdrv_get_aio_context(bs)); |
769ce76d | 833 | |
8e6d58cd | 834 | qemu_opts_del(opts); |
769ce76d AG |
835 | return 0; |
836 | ||
837 | out: | |
acd7fdc6 | 838 | error_setg(errp, "CURL: Error opening file: %s", state->errmsg); |
769ce76d AG |
839 | curl_easy_cleanup(state->curl); |
840 | state->curl = NULL; | |
841 | out_noclean: | |
456af346 | 842 | qemu_mutex_destroy(&s->mutex); |
a94f83d9 | 843 | g_free(s->cookie); |
8e6d58cd KW |
844 | g_free(s->url); |
845 | qemu_opts_del(opts); | |
769ce76d AG |
846 | return -EINVAL; |
847 | } | |
848 | ||
d7331bed | 849 | static const AIOCBInfo curl_aiocb_info = { |
c16b5a2c | 850 | .aiocb_size = sizeof(CURLAIOCB), |
c16b5a2c CH |
851 | }; |
852 | ||
363c3c85 NT |
853 | |
854 | static void curl_readv_bh_cb(void *p) | |
769ce76d | 855 | { |
769ce76d | 856 | CURLState *state; |
b69cdef8 | 857 | int running; |
1919631e | 858 | int ret = -EINPROGRESS; |
769ce76d | 859 | |
363c3c85 | 860 | CURLAIOCB *acb = p; |
1919631e PB |
861 | BlockDriverState *bs = acb->common.bs; |
862 | BDRVCURLState *s = bs->opaque; | |
769ce76d | 863 | |
9054d9f6 | 864 | size_t start = acb->sector_num * BDRV_SECTOR_SIZE; |
363c3c85 | 865 | size_t end; |
769ce76d | 866 | |
ba3186c4 | 867 | qemu_mutex_lock(&s->mutex); |
1919631e | 868 | |
769ce76d AG |
869 | // In case we have the requested data already (e.g. read-ahead), |
870 | // we can just call the callback and be done. | |
9054d9f6 | 871 | switch (curl_find_buf(s, start, acb->nb_sectors * BDRV_SECTOR_SIZE, acb)) { |
769ce76d | 872 | case FIND_RET_OK: |
34db05e7 PB |
873 | ret = 0; |
874 | goto out; | |
769ce76d | 875 | case FIND_RET_WAIT: |
1919631e | 876 | goto out; |
769ce76d AG |
877 | default: |
878 | break; | |
879 | } | |
880 | ||
881 | // No cache found, so let's start a new request | |
a2f468e4 | 882 | state = curl_init_state(acb->common.bs, s); |
363c3c85 | 883 | if (!state) { |
1919631e PB |
884 | ret = -EIO; |
885 | goto out; | |
363c3c85 | 886 | } |
769ce76d AG |
887 | |
888 | acb->start = 0; | |
4e504535 | 889 | acb->end = MIN(acb->nb_sectors * BDRV_SECTOR_SIZE, s->len - start); |
769ce76d AG |
890 | |
891 | state->buf_off = 0; | |
f7047c2d | 892 | g_free(state->orig_buf); |
769ce76d | 893 | state->buf_start = start; |
4e504535 HR |
894 | state->buf_len = MIN(acb->end + s->readahead_size, s->len - start); |
895 | end = start + state->buf_len - 1; | |
8dc7a772 KW |
896 | state->orig_buf = g_try_malloc(state->buf_len); |
897 | if (state->buf_len && state->orig_buf == NULL) { | |
898 | curl_clean_state(state); | |
1919631e PB |
899 | ret = -ENOMEM; |
900 | goto out; | |
8dc7a772 | 901 | } |
769ce76d AG |
902 | state->acb[0] = acb; |
903 | ||
0bfcd599 | 904 | snprintf(state->range, 127, "%zd-%zd", start, end); |
9054d9f6 HR |
905 | DPRINTF("CURL (AIO): Reading %llu at %zd (%s)\n", |
906 | (acb->nb_sectors * BDRV_SECTOR_SIZE), start, state->range); | |
769ce76d AG |
907 | curl_easy_setopt(state->curl, CURLOPT_RANGE, state->range); |
908 | ||
909 | curl_multi_add_handle(s->multi, state->curl); | |
769ce76d | 910 | |
b69cdef8 MB |
911 | /* Tell curl it needs to kick things off */ |
912 | curl_multi_socket_action(s->multi, CURL_SOCKET_TIMEOUT, 0, &running); | |
1919631e PB |
913 | |
914 | out: | |
ba3186c4 | 915 | qemu_mutex_unlock(&s->mutex); |
1919631e PB |
916 | if (ret != -EINPROGRESS) { |
917 | acb->common.cb(acb->common.opaque, ret); | |
918 | qemu_aio_unref(acb); | |
919 | } | |
363c3c85 NT |
920 | } |
921 | ||
7c84b1b8 | 922 | static BlockAIOCB *curl_aio_readv(BlockDriverState *bs, |
363c3c85 | 923 | int64_t sector_num, QEMUIOVector *qiov, int nb_sectors, |
097310b5 | 924 | BlockCompletionFunc *cb, void *opaque) |
363c3c85 NT |
925 | { |
926 | CURLAIOCB *acb; | |
927 | ||
d7331bed | 928 | acb = qemu_aio_get(&curl_aiocb_info, bs, cb, opaque); |
363c3c85 | 929 | |
363c3c85 NT |
930 | acb->qiov = qiov; |
931 | acb->sector_num = sector_num; | |
932 | acb->nb_sectors = nb_sectors; | |
933 | ||
fffb6e12 | 934 | aio_bh_schedule_oneshot(bdrv_get_aio_context(bs), curl_readv_bh_cb, acb); |
769ce76d AG |
935 | return &acb->common; |
936 | } | |
937 | ||
769ce76d AG |
938 | static void curl_close(BlockDriverState *bs) |
939 | { | |
940 | BDRVCURLState *s = bs->opaque; | |
769ce76d | 941 | |
d0f2c4c6 | 942 | DPRINTF("CURL: Close\n"); |
63f0f45f | 943 | curl_detach_aio_context(bs); |
ba3186c4 | 944 | qemu_mutex_destroy(&s->mutex); |
031fd1be | 945 | |
a94f83d9 | 946 | g_free(s->cookie); |
45724d6d | 947 | g_free(s->url); |
769ce76d AG |
948 | } |
949 | ||
950 | static int64_t curl_getlength(BlockDriverState *bs) | |
951 | { | |
952 | BDRVCURLState *s = bs->opaque; | |
953 | return s->len; | |
954 | } | |
955 | ||
956 | static BlockDriver bdrv_http = { | |
63f0f45f SH |
957 | .format_name = "http", |
958 | .protocol_name = "http", | |
959 | ||
960 | .instance_size = sizeof(BDRVCURLState), | |
961 | .bdrv_parse_filename = curl_parse_filename, | |
962 | .bdrv_file_open = curl_open, | |
963 | .bdrv_close = curl_close, | |
964 | .bdrv_getlength = curl_getlength, | |
769ce76d | 965 | |
63f0f45f | 966 | .bdrv_aio_readv = curl_aio_readv, |
769ce76d | 967 | |
63f0f45f SH |
968 | .bdrv_detach_aio_context = curl_detach_aio_context, |
969 | .bdrv_attach_aio_context = curl_attach_aio_context, | |
769ce76d AG |
970 | }; |
971 | ||
972 | static BlockDriver bdrv_https = { | |
63f0f45f SH |
973 | .format_name = "https", |
974 | .protocol_name = "https", | |
769ce76d | 975 | |
63f0f45f SH |
976 | .instance_size = sizeof(BDRVCURLState), |
977 | .bdrv_parse_filename = curl_parse_filename, | |
978 | .bdrv_file_open = curl_open, | |
979 | .bdrv_close = curl_close, | |
980 | .bdrv_getlength = curl_getlength, | |
769ce76d | 981 | |
63f0f45f SH |
982 | .bdrv_aio_readv = curl_aio_readv, |
983 | ||
984 | .bdrv_detach_aio_context = curl_detach_aio_context, | |
985 | .bdrv_attach_aio_context = curl_attach_aio_context, | |
769ce76d AG |
986 | }; |
987 | ||
988 | static BlockDriver bdrv_ftp = { | |
63f0f45f SH |
989 | .format_name = "ftp", |
990 | .protocol_name = "ftp", | |
991 | ||
992 | .instance_size = sizeof(BDRVCURLState), | |
993 | .bdrv_parse_filename = curl_parse_filename, | |
994 | .bdrv_file_open = curl_open, | |
995 | .bdrv_close = curl_close, | |
996 | .bdrv_getlength = curl_getlength, | |
769ce76d | 997 | |
63f0f45f | 998 | .bdrv_aio_readv = curl_aio_readv, |
769ce76d | 999 | |
63f0f45f SH |
1000 | .bdrv_detach_aio_context = curl_detach_aio_context, |
1001 | .bdrv_attach_aio_context = curl_attach_aio_context, | |
769ce76d AG |
1002 | }; |
1003 | ||
1004 | static BlockDriver bdrv_ftps = { | |
63f0f45f SH |
1005 | .format_name = "ftps", |
1006 | .protocol_name = "ftps", | |
769ce76d | 1007 | |
63f0f45f SH |
1008 | .instance_size = sizeof(BDRVCURLState), |
1009 | .bdrv_parse_filename = curl_parse_filename, | |
1010 | .bdrv_file_open = curl_open, | |
1011 | .bdrv_close = curl_close, | |
1012 | .bdrv_getlength = curl_getlength, | |
769ce76d | 1013 | |
63f0f45f SH |
1014 | .bdrv_aio_readv = curl_aio_readv, |
1015 | ||
1016 | .bdrv_detach_aio_context = curl_detach_aio_context, | |
1017 | .bdrv_attach_aio_context = curl_attach_aio_context, | |
769ce76d AG |
1018 | }; |
1019 | ||
769ce76d AG |
1020 | static void curl_block_init(void) |
1021 | { | |
1022 | bdrv_register(&bdrv_http); | |
1023 | bdrv_register(&bdrv_https); | |
1024 | bdrv_register(&bdrv_ftp); | |
1025 | bdrv_register(&bdrv_ftps); | |
769ce76d AG |
1026 | } |
1027 | ||
1028 | block_init(curl_block_init); |