diff options
author | 2015-08-28 09:58:54 +0800 | |
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committer | 2015-09-01 12:44:00 +0800 | |
commit | e44e3482bdb4d0ebde2d8b41830ac2cdb07948fb (patch) | |
tree | 66b09f592c55df2878107a468a91d21506104d3f /qemu/block/curl.c | |
parent | 9ca8dbcc65cfc63d6f5ef3312a33184e1d726e00 (diff) |
Add qemu 2.4.0
Change-Id: Ic99cbad4b61f8b127b7dc74d04576c0bcbaaf4f5
Signed-off-by: Yang Zhang <yang.z.zhang@intel.com>
Diffstat (limited to 'qemu/block/curl.c')
-rw-r--r-- | qemu/block/curl.c | 825 |
1 files changed, 825 insertions, 0 deletions
diff --git a/qemu/block/curl.c b/qemu/block/curl.c new file mode 100644 index 000000000..032cc8ae2 --- /dev/null +++ b/qemu/block/curl.c @@ -0,0 +1,825 @@ +/* + * QEMU Block driver for CURL images + * + * Copyright (c) 2009 Alexander Graf <agraf@suse.de> + * + * Permission is hereby granted, free of charge, to any person obtaining a copy + * of this software and associated documentation files (the "Software"), to deal + * in the Software without restriction, including without limitation the rights + * to use, copy, modify, merge, publish, distribute, sublicense, and/or sell + * copies of the Software, and to permit persons to whom the Software is + * furnished to do so, subject to the following conditions: + * + * The above copyright notice and this permission notice shall be included in + * all copies or substantial portions of the Software. + * + * THE SOFTWARE IS PROVIDED "AS IS", WITHOUT WARRANTY OF ANY KIND, EXPRESS OR + * IMPLIED, INCLUDING BUT NOT LIMITED TO THE WARRANTIES OF MERCHANTABILITY, + * FITNESS FOR A PARTICULAR PURPOSE AND NONINFRINGEMENT. IN NO EVENT SHALL + * THE AUTHORS OR COPYRIGHT HOLDERS BE LIABLE FOR ANY CLAIM, DAMAGES OR OTHER + * LIABILITY, WHETHER IN AN ACTION OF CONTRACT, TORT OR OTHERWISE, ARISING FROM, + * OUT OF OR IN CONNECTION WITH THE SOFTWARE OR THE USE OR OTHER DEALINGS IN + * THE SOFTWARE. + */ +#include "qemu-common.h" +#include "qemu/error-report.h" +#include "block/block_int.h" +#include "qapi/qmp/qbool.h" +#include "qapi/qmp/qstring.h" +#include <curl/curl.h> + +// #define DEBUG_CURL +// #define DEBUG_VERBOSE + +#ifdef DEBUG_CURL +#define DPRINTF(fmt, ...) do { printf(fmt, ## __VA_ARGS__); } while (0) +#else +#define DPRINTF(fmt, ...) do { } while (0) +#endif + +#if LIBCURL_VERSION_NUM >= 0x071000 +/* The multi interface timer callback was introduced in 7.16.0 */ +#define NEED_CURL_TIMER_CALLBACK +#define HAVE_SOCKET_ACTION +#endif + +#ifndef HAVE_SOCKET_ACTION +/* If curl_multi_socket_action isn't available, define it statically here in + * terms of curl_multi_socket. Note that ev_bitmask will be ignored, which is + * less efficient but still safe. */ +static CURLMcode __curl_multi_socket_action(CURLM *multi_handle, + curl_socket_t sockfd, + int ev_bitmask, + int *running_handles) +{ + return curl_multi_socket(multi_handle, sockfd, running_handles); +} +#define curl_multi_socket_action __curl_multi_socket_action +#endif + +#define PROTOCOLS (CURLPROTO_HTTP | CURLPROTO_HTTPS | \ + CURLPROTO_FTP | CURLPROTO_FTPS | \ + CURLPROTO_TFTP) + +#define CURL_NUM_STATES 8 +#define CURL_NUM_ACB 8 +#define SECTOR_SIZE 512 +#define READ_AHEAD_DEFAULT (256 * 1024) +#define CURL_TIMEOUT_DEFAULT 5 +#define CURL_TIMEOUT_MAX 10000 + +#define FIND_RET_NONE 0 +#define FIND_RET_OK 1 +#define FIND_RET_WAIT 2 + +#define CURL_BLOCK_OPT_URL "url" +#define CURL_BLOCK_OPT_READAHEAD "readahead" +#define CURL_BLOCK_OPT_SSLVERIFY "sslverify" +#define CURL_BLOCK_OPT_TIMEOUT "timeout" +#define CURL_BLOCK_OPT_COOKIE "cookie" + +struct BDRVCURLState; + +typedef struct CURLAIOCB { + BlockAIOCB common; + QEMUBH *bh; + QEMUIOVector *qiov; + + int64_t sector_num; + int nb_sectors; + + size_t start; + size_t end; +} CURLAIOCB; + +typedef struct CURLState +{ + struct BDRVCURLState *s; + CURLAIOCB *acb[CURL_NUM_ACB]; + CURL *curl; + curl_socket_t sock_fd; + char *orig_buf; + size_t buf_start; + size_t buf_off; + size_t buf_len; + char range[128]; + char errmsg[CURL_ERROR_SIZE]; + char in_use; +} CURLState; + +typedef struct BDRVCURLState { + CURLM *multi; + QEMUTimer timer; + size_t len; + CURLState states[CURL_NUM_STATES]; + char *url; + size_t readahead_size; + bool sslverify; + uint64_t timeout; + char *cookie; + bool accept_range; + AioContext *aio_context; +} BDRVCURLState; + +static void curl_clean_state(CURLState *s); +static void curl_multi_do(void *arg); +static void curl_multi_read(void *arg); + +#ifdef NEED_CURL_TIMER_CALLBACK +static int curl_timer_cb(CURLM *multi, long timeout_ms, void *opaque) +{ + BDRVCURLState *s = opaque; + + DPRINTF("CURL: timer callback timeout_ms %ld\n", timeout_ms); + if (timeout_ms == -1) { + timer_del(&s->timer); + } else { + int64_t timeout_ns = (int64_t)timeout_ms * 1000 * 1000; + timer_mod(&s->timer, + qemu_clock_get_ns(QEMU_CLOCK_REALTIME) + timeout_ns); + } + return 0; +} +#endif + +static int curl_sock_cb(CURL *curl, curl_socket_t fd, int action, + void *userp, void *sp) +{ + BDRVCURLState *s; + CURLState *state = NULL; + curl_easy_getinfo(curl, CURLINFO_PRIVATE, (char **)&state); + state->sock_fd = fd; + s = state->s; + + DPRINTF("CURL (AIO): Sock action %d on fd %d\n", action, fd); + switch (action) { + case CURL_POLL_IN: + aio_set_fd_handler(s->aio_context, fd, curl_multi_read, + NULL, state); + break; + case CURL_POLL_OUT: + aio_set_fd_handler(s->aio_context, fd, NULL, curl_multi_do, state); + break; + case CURL_POLL_INOUT: + aio_set_fd_handler(s->aio_context, fd, curl_multi_read, + curl_multi_do, state); + break; + case CURL_POLL_REMOVE: + aio_set_fd_handler(s->aio_context, fd, NULL, NULL, NULL); + break; + } + + return 0; +} + +static size_t curl_header_cb(void *ptr, size_t size, size_t nmemb, void *opaque) +{ + BDRVCURLState *s = opaque; + size_t realsize = size * nmemb; + const char *accept_line = "Accept-Ranges: bytes"; + + if (realsize >= strlen(accept_line) + && strncmp((char *)ptr, accept_line, strlen(accept_line)) == 0) { + s->accept_range = true; + } + + return realsize; +} + +static size_t curl_read_cb(void *ptr, size_t size, size_t nmemb, void *opaque) +{ + CURLState *s = ((CURLState*)opaque); + size_t realsize = size * nmemb; + int i; + + DPRINTF("CURL: Just reading %zd bytes\n", realsize); + + if (!s || !s->orig_buf) + return 0; + + if (s->buf_off >= s->buf_len) { + /* buffer full, read nothing */ + return 0; + } + realsize = MIN(realsize, s->buf_len - s->buf_off); + memcpy(s->orig_buf + s->buf_off, ptr, realsize); + s->buf_off += realsize; + + for(i=0; i<CURL_NUM_ACB; i++) { + CURLAIOCB *acb = s->acb[i]; + + if (!acb) + continue; + + if ((s->buf_off >= acb->end)) { + qemu_iovec_from_buf(acb->qiov, 0, s->orig_buf + acb->start, + acb->end - acb->start); + acb->common.cb(acb->common.opaque, 0); + qemu_aio_unref(acb); + s->acb[i] = NULL; + } + } + + return realsize; +} + +static int curl_find_buf(BDRVCURLState *s, size_t start, size_t len, + CURLAIOCB *acb) +{ + int i; + size_t end = start + len; + + for (i=0; i<CURL_NUM_STATES; i++) { + CURLState *state = &s->states[i]; + size_t buf_end = (state->buf_start + state->buf_off); + size_t buf_fend = (state->buf_start + state->buf_len); + + if (!state->orig_buf) + continue; + if (!state->buf_off) + continue; + + // Does the existing buffer cover our section? + if ((start >= state->buf_start) && + (start <= buf_end) && + (end >= state->buf_start) && + (end <= buf_end)) + { + char *buf = state->orig_buf + (start - state->buf_start); + + qemu_iovec_from_buf(acb->qiov, 0, buf, len); + acb->common.cb(acb->common.opaque, 0); + + return FIND_RET_OK; + } + + // Wait for unfinished chunks + if (state->in_use && + (start >= state->buf_start) && + (start <= buf_fend) && + (end >= state->buf_start) && + (end <= buf_fend)) + { + int j; + + acb->start = start - state->buf_start; + acb->end = acb->start + len; + + for (j=0; j<CURL_NUM_ACB; j++) { + if (!state->acb[j]) { + state->acb[j] = acb; + return FIND_RET_WAIT; + } + } + } + } + + return FIND_RET_NONE; +} + +static void curl_multi_check_completion(BDRVCURLState *s) +{ + int msgs_in_queue; + + /* Try to find done transfers, so we can free the easy + * handle again. */ + for (;;) { + CURLMsg *msg; + msg = curl_multi_info_read(s->multi, &msgs_in_queue); + + /* Quit when there are no more completions */ + if (!msg) + break; + + if (msg->msg == CURLMSG_DONE) { + CURLState *state = NULL; + curl_easy_getinfo(msg->easy_handle, CURLINFO_PRIVATE, + (char **)&state); + + /* ACBs for successful messages get completed in curl_read_cb */ + if (msg->data.result != CURLE_OK) { + int i; + static int errcount = 100; + + /* Don't lose the original error message from curl, since + * it contains extra data. + */ + if (errcount > 0) { + error_report("curl: %s", state->errmsg); + if (--errcount == 0) { + error_report("curl: further errors suppressed"); + } + } + + for (i = 0; i < CURL_NUM_ACB; i++) { + CURLAIOCB *acb = state->acb[i]; + + if (acb == NULL) { + continue; + } + + acb->common.cb(acb->common.opaque, -EPROTO); + qemu_aio_unref(acb); + state->acb[i] = NULL; + } + } + + curl_clean_state(state); + break; + } + } +} + +static void curl_multi_do(void *arg) +{ + CURLState *s = (CURLState *)arg; + int running; + int r; + + if (!s->s->multi) { + return; + } + + do { + r = curl_multi_socket_action(s->s->multi, s->sock_fd, 0, &running); + } while(r == CURLM_CALL_MULTI_PERFORM); + +} + +static void curl_multi_read(void *arg) +{ + CURLState *s = (CURLState *)arg; + + curl_multi_do(arg); + curl_multi_check_completion(s->s); +} + +static void curl_multi_timeout_do(void *arg) +{ +#ifdef NEED_CURL_TIMER_CALLBACK + BDRVCURLState *s = (BDRVCURLState *)arg; + int running; + + if (!s->multi) { + return; + } + + curl_multi_socket_action(s->multi, CURL_SOCKET_TIMEOUT, 0, &running); + + curl_multi_check_completion(s); +#else + abort(); +#endif +} + +static CURLState *curl_init_state(BlockDriverState *bs, BDRVCURLState *s) +{ + CURLState *state = NULL; + int i, j; + + do { + for (i=0; i<CURL_NUM_STATES; i++) { + for (j=0; j<CURL_NUM_ACB; j++) + if (s->states[i].acb[j]) + continue; + if (s->states[i].in_use) + continue; + + state = &s->states[i]; + state->in_use = 1; + break; + } + if (!state) { + aio_poll(bdrv_get_aio_context(bs), true); + } + } while(!state); + + if (!state->curl) { + state->curl = curl_easy_init(); + if (!state->curl) { + return NULL; + } + curl_easy_setopt(state->curl, CURLOPT_URL, s->url); + curl_easy_setopt(state->curl, CURLOPT_SSL_VERIFYPEER, + (long) s->sslverify); + if (s->cookie) { + curl_easy_setopt(state->curl, CURLOPT_COOKIE, s->cookie); + } + curl_easy_setopt(state->curl, CURLOPT_TIMEOUT, (long)s->timeout); + curl_easy_setopt(state->curl, CURLOPT_WRITEFUNCTION, + (void *)curl_read_cb); + curl_easy_setopt(state->curl, CURLOPT_WRITEDATA, (void *)state); + curl_easy_setopt(state->curl, CURLOPT_PRIVATE, (void *)state); + curl_easy_setopt(state->curl, CURLOPT_AUTOREFERER, 1); + curl_easy_setopt(state->curl, CURLOPT_FOLLOWLOCATION, 1); + curl_easy_setopt(state->curl, CURLOPT_NOSIGNAL, 1); + curl_easy_setopt(state->curl, CURLOPT_ERRORBUFFER, state->errmsg); + curl_easy_setopt(state->curl, CURLOPT_FAILONERROR, 1); + + /* Restrict supported protocols to avoid security issues in the more + * obscure protocols. For example, do not allow POP3/SMTP/IMAP see + * CVE-2013-0249. + * + * Restricting protocols is only supported from 7.19.4 upwards. + */ +#if LIBCURL_VERSION_NUM >= 0x071304 + curl_easy_setopt(state->curl, CURLOPT_PROTOCOLS, PROTOCOLS); + curl_easy_setopt(state->curl, CURLOPT_REDIR_PROTOCOLS, PROTOCOLS); +#endif + +#ifdef DEBUG_VERBOSE + curl_easy_setopt(state->curl, CURLOPT_VERBOSE, 1); +#endif + } + + state->s = s; + + return state; +} + +static void curl_clean_state(CURLState *s) +{ + if (s->s->multi) + curl_multi_remove_handle(s->s->multi, s->curl); + s->in_use = 0; +} + +static void curl_parse_filename(const char *filename, QDict *options, + Error **errp) +{ + qdict_put(options, CURL_BLOCK_OPT_URL, qstring_from_str(filename)); +} + +static void curl_detach_aio_context(BlockDriverState *bs) +{ + BDRVCURLState *s = bs->opaque; + int i; + + for (i = 0; i < CURL_NUM_STATES; i++) { + if (s->states[i].in_use) { + curl_clean_state(&s->states[i]); + } + if (s->states[i].curl) { + curl_easy_cleanup(s->states[i].curl); + s->states[i].curl = NULL; + } + g_free(s->states[i].orig_buf); + s->states[i].orig_buf = NULL; + } + if (s->multi) { + curl_multi_cleanup(s->multi); + s->multi = NULL; + } + + timer_del(&s->timer); +} + +static void curl_attach_aio_context(BlockDriverState *bs, + AioContext *new_context) +{ + BDRVCURLState *s = bs->opaque; + + aio_timer_init(new_context, &s->timer, + QEMU_CLOCK_REALTIME, SCALE_NS, + curl_multi_timeout_do, s); + + assert(!s->multi); + s->multi = curl_multi_init(); + s->aio_context = new_context; + curl_multi_setopt(s->multi, CURLMOPT_SOCKETFUNCTION, curl_sock_cb); +#ifdef NEED_CURL_TIMER_CALLBACK + curl_multi_setopt(s->multi, CURLMOPT_TIMERDATA, s); + curl_multi_setopt(s->multi, CURLMOPT_TIMERFUNCTION, curl_timer_cb); +#endif +} + +static QemuOptsList runtime_opts = { + .name = "curl", + .head = QTAILQ_HEAD_INITIALIZER(runtime_opts.head), + .desc = { + { + .name = CURL_BLOCK_OPT_URL, + .type = QEMU_OPT_STRING, + .help = "URL to open", + }, + { + .name = CURL_BLOCK_OPT_READAHEAD, + .type = QEMU_OPT_SIZE, + .help = "Readahead size", + }, + { + .name = CURL_BLOCK_OPT_SSLVERIFY, + .type = QEMU_OPT_BOOL, + .help = "Verify SSL certificate" + }, + { + .name = CURL_BLOCK_OPT_TIMEOUT, + .type = QEMU_OPT_NUMBER, + .help = "Curl timeout" + }, + { + .name = CURL_BLOCK_OPT_COOKIE, + .type = QEMU_OPT_STRING, + .help = "Pass the cookie or list of cookies with each request" + }, + { /* end of list */ } + }, +}; + +static int curl_open(BlockDriverState *bs, QDict *options, int flags, + Error **errp) +{ + BDRVCURLState *s = bs->opaque; + CURLState *state = NULL; + QemuOpts *opts; + Error *local_err = NULL; + const char *file; + const char *cookie; + double d; + + static int inited = 0; + + if (flags & BDRV_O_RDWR) { + error_setg(errp, "curl block device does not support writes"); + return -EROFS; + } + + opts = qemu_opts_create(&runtime_opts, NULL, 0, &error_abort); + qemu_opts_absorb_qdict(opts, options, &local_err); + if (local_err) { + error_propagate(errp, local_err); + goto out_noclean; + } + + s->readahead_size = qemu_opt_get_size(opts, CURL_BLOCK_OPT_READAHEAD, + READ_AHEAD_DEFAULT); + if ((s->readahead_size & 0x1ff) != 0) { + error_setg(errp, "HTTP_READAHEAD_SIZE %zd is not a multiple of 512", + s->readahead_size); + goto out_noclean; + } + + s->timeout = qemu_opt_get_number(opts, CURL_BLOCK_OPT_TIMEOUT, + CURL_TIMEOUT_DEFAULT); + if (s->timeout > CURL_TIMEOUT_MAX) { + error_setg(errp, "timeout parameter is too large or negative"); + goto out_noclean; + } + + s->sslverify = qemu_opt_get_bool(opts, CURL_BLOCK_OPT_SSLVERIFY, true); + + cookie = qemu_opt_get(opts, CURL_BLOCK_OPT_COOKIE); + s->cookie = g_strdup(cookie); + + file = qemu_opt_get(opts, CURL_BLOCK_OPT_URL); + if (file == NULL) { + error_setg(errp, "curl block driver requires an 'url' option"); + goto out_noclean; + } + + if (!inited) { + curl_global_init(CURL_GLOBAL_ALL); + inited = 1; + } + + DPRINTF("CURL: Opening %s\n", file); + s->aio_context = bdrv_get_aio_context(bs); + s->url = g_strdup(file); + state = curl_init_state(bs, s); + if (!state) + goto out_noclean; + + // Get file size + + s->accept_range = false; + curl_easy_setopt(state->curl, CURLOPT_NOBODY, 1); + curl_easy_setopt(state->curl, CURLOPT_HEADERFUNCTION, + curl_header_cb); + curl_easy_setopt(state->curl, CURLOPT_HEADERDATA, s); + if (curl_easy_perform(state->curl)) + goto out; + curl_easy_getinfo(state->curl, CURLINFO_CONTENT_LENGTH_DOWNLOAD, &d); + if (d) + s->len = (size_t)d; + else if(!s->len) + goto out; + if ((!strncasecmp(s->url, "http://", strlen("http://")) + || !strncasecmp(s->url, "https://", strlen("https://"))) + && !s->accept_range) { + pstrcpy(state->errmsg, CURL_ERROR_SIZE, + "Server does not support 'range' (byte ranges)."); + goto out; + } + DPRINTF("CURL: Size = %zd\n", s->len); + + curl_clean_state(state); + curl_easy_cleanup(state->curl); + state->curl = NULL; + + curl_attach_aio_context(bs, bdrv_get_aio_context(bs)); + + qemu_opts_del(opts); + return 0; + +out: + error_setg(errp, "CURL: Error opening file: %s", state->errmsg); + curl_easy_cleanup(state->curl); + state->curl = NULL; +out_noclean: + g_free(s->cookie); + g_free(s->url); + qemu_opts_del(opts); + return -EINVAL; +} + +static const AIOCBInfo curl_aiocb_info = { + .aiocb_size = sizeof(CURLAIOCB), +}; + + +static void curl_readv_bh_cb(void *p) +{ + CURLState *state; + int running; + + CURLAIOCB *acb = p; + BDRVCURLState *s = acb->common.bs->opaque; + + qemu_bh_delete(acb->bh); + acb->bh = NULL; + + size_t start = acb->sector_num * SECTOR_SIZE; + size_t end; + + // In case we have the requested data already (e.g. read-ahead), + // we can just call the callback and be done. + switch (curl_find_buf(s, start, acb->nb_sectors * SECTOR_SIZE, acb)) { + case FIND_RET_OK: + qemu_aio_unref(acb); + // fall through + case FIND_RET_WAIT: + return; + default: + break; + } + + // No cache found, so let's start a new request + state = curl_init_state(acb->common.bs, s); + if (!state) { + acb->common.cb(acb->common.opaque, -EIO); + qemu_aio_unref(acb); + return; + } + + acb->start = 0; + acb->end = (acb->nb_sectors * SECTOR_SIZE); + + state->buf_off = 0; + g_free(state->orig_buf); + state->buf_start = start; + state->buf_len = acb->end + s->readahead_size; + end = MIN(start + state->buf_len, s->len) - 1; + state->orig_buf = g_try_malloc(state->buf_len); + if (state->buf_len && state->orig_buf == NULL) { + curl_clean_state(state); + acb->common.cb(acb->common.opaque, -ENOMEM); + qemu_aio_unref(acb); + return; + } + state->acb[0] = acb; + + snprintf(state->range, 127, "%zd-%zd", start, end); + DPRINTF("CURL (AIO): Reading %d at %zd (%s)\n", + (acb->nb_sectors * SECTOR_SIZE), start, state->range); + curl_easy_setopt(state->curl, CURLOPT_RANGE, state->range); + + curl_multi_add_handle(s->multi, state->curl); + + /* Tell curl it needs to kick things off */ + curl_multi_socket_action(s->multi, CURL_SOCKET_TIMEOUT, 0, &running); +} + +static BlockAIOCB *curl_aio_readv(BlockDriverState *bs, + int64_t sector_num, QEMUIOVector *qiov, int nb_sectors, + BlockCompletionFunc *cb, void *opaque) +{ + CURLAIOCB *acb; + + acb = qemu_aio_get(&curl_aiocb_info, bs, cb, opaque); + + acb->qiov = qiov; + acb->sector_num = sector_num; + acb->nb_sectors = nb_sectors; + + acb->bh = aio_bh_new(bdrv_get_aio_context(bs), curl_readv_bh_cb, acb); + qemu_bh_schedule(acb->bh); + return &acb->common; +} + +static void curl_close(BlockDriverState *bs) +{ + BDRVCURLState *s = bs->opaque; + + DPRINTF("CURL: Close\n"); + curl_detach_aio_context(bs); + + g_free(s->cookie); + g_free(s->url); +} + +static int64_t curl_getlength(BlockDriverState *bs) +{ + BDRVCURLState *s = bs->opaque; + return s->len; +} + +static BlockDriver bdrv_http = { + .format_name = "http", + .protocol_name = "http", + + .instance_size = sizeof(BDRVCURLState), + .bdrv_parse_filename = curl_parse_filename, + .bdrv_file_open = curl_open, + .bdrv_close = curl_close, + .bdrv_getlength = curl_getlength, + + .bdrv_aio_readv = curl_aio_readv, + + .bdrv_detach_aio_context = curl_detach_aio_context, + .bdrv_attach_aio_context = curl_attach_aio_context, +}; + +static BlockDriver bdrv_https = { + .format_name = "https", + .protocol_name = "https", + + .instance_size = sizeof(BDRVCURLState), + .bdrv_parse_filename = curl_parse_filename, + .bdrv_file_open = curl_open, + .bdrv_close = curl_close, + .bdrv_getlength = curl_getlength, + + .bdrv_aio_readv = curl_aio_readv, + + .bdrv_detach_aio_context = curl_detach_aio_context, + .bdrv_attach_aio_context = curl_attach_aio_context, +}; + +static BlockDriver bdrv_ftp = { + .format_name = "ftp", + .protocol_name = "ftp", + + .instance_size = sizeof(BDRVCURLState), + .bdrv_parse_filename = curl_parse_filename, + .bdrv_file_open = curl_open, + .bdrv_close = curl_close, + .bdrv_getlength = curl_getlength, + + .bdrv_aio_readv = curl_aio_readv, + + .bdrv_detach_aio_context = curl_detach_aio_context, + .bdrv_attach_aio_context = curl_attach_aio_context, +}; + +static BlockDriver bdrv_ftps = { + .format_name = "ftps", + .protocol_name = "ftps", + + .instance_size = sizeof(BDRVCURLState), + .bdrv_parse_filename = curl_parse_filename, + .bdrv_file_open = curl_open, + .bdrv_close = curl_close, + .bdrv_getlength = curl_getlength, + + .bdrv_aio_readv = curl_aio_readv, + + .bdrv_detach_aio_context = curl_detach_aio_context, + .bdrv_attach_aio_context = curl_attach_aio_context, +}; + +static BlockDriver bdrv_tftp = { + .format_name = "tftp", + .protocol_name = "tftp", + + .instance_size = sizeof(BDRVCURLState), + .bdrv_parse_filename = curl_parse_filename, + .bdrv_file_open = curl_open, + .bdrv_close = curl_close, + .bdrv_getlength = curl_getlength, + + .bdrv_aio_readv = curl_aio_readv, + + .bdrv_detach_aio_context = curl_detach_aio_context, + .bdrv_attach_aio_context = curl_attach_aio_context, +}; + +static void curl_block_init(void) +{ + bdrv_register(&bdrv_http); + bdrv_register(&bdrv_https); + bdrv_register(&bdrv_ftp); + bdrv_register(&bdrv_ftps); + bdrv_register(&bdrv_tftp); +} + +block_init(curl_block_init); |