1 From cc5b1446be5c3501881f7968edb645425db839d1 Mon Sep 17 00:00:00 2001
2 From: Wolfgang Bumiller <w.bumiller@proxmox.com>
3 Date: Wed, 9 Dec 2015 15:21:54 +0100
4 Subject: [PATCH 16/47] backup: vma: add dir format
7 blockdev.c | 137 ++++++++++++++++++++++++++++++++++++++++---------------
8 hmp-commands.hx | 8 ++--
10 qapi-schema.json | 2 +-
12 5 files changed, 111 insertions(+), 42 deletions(-)
14 diff --git a/blockdev.c b/blockdev.c
15 index 3e5c9ce..4958a5f 100644
18 @@ -3007,6 +3007,8 @@ typedef struct PVEBackupDevInfo {
22 + char targetfile[PATH_MAX];
23 + BlockDriverState *target;
26 static void pvebackup_run_next_job(void);
27 @@ -3075,8 +3077,6 @@ static void pvebackup_complete_cb(void *opaque, int ret)
29 PVEBackupDevInfo *di = opaque;
31 - assert(backup_state.vmaw);
35 if (ret < 0 && !backup_state.error) {
36 @@ -3087,8 +3087,11 @@ static void pvebackup_complete_cb(void *opaque, int ret)
37 BlockDriverState *bs = di->bs;
42 - vma_writer_close_stream(backup_state.vmaw, di->dev_id);
43 + if (backup_state.vmaw) {
44 + vma_writer_close_stream(backup_state.vmaw, di->dev_id);
47 block_job_cb(bs, ret);
49 @@ -3168,6 +3171,7 @@ UuidInfo *qmp_backup(const char *backup_file, bool has_format,
52 BlockDriverState *bs = NULL;
53 + const char *backup_dir = NULL;
54 Error *local_err = NULL;
56 VmaWriter *vmaw = NULL;
57 @@ -3175,6 +3179,7 @@ UuidInfo *qmp_backup(const char *backup_file, bool has_format,
58 GList *di_list = NULL;
63 if (backup_state.di_list) {
64 error_set(errp, ERROR_CLASS_GENERIC_ERROR,
65 @@ -3185,11 +3190,6 @@ UuidInfo *qmp_backup(const char *backup_file, bool has_format,
66 /* Todo: try to auto-detect format based on file name */
67 format = has_format ? format : BACKUP_FORMAT_VMA;
69 - if (format != BACKUP_FORMAT_VMA) {
70 - error_set(errp, ERROR_CLASS_GENERIC_ERROR, "unknown backup format");
75 devs = g_strsplit_set(devlist, ",;:", -1);
77 @@ -3258,27 +3258,62 @@ UuidInfo *qmp_backup(const char *backup_file, bool has_format,
81 - vmaw = vma_writer_create(backup_file, uuid, &local_err);
84 - error_propagate(errp, local_err);
85 + if (format == BACKUP_FORMAT_VMA) {
86 + vmaw = vma_writer_create(backup_file, uuid, &local_err);
89 + error_propagate(errp, local_err);
96 - /* register all devices for vma writer */
99 - PVEBackupDevInfo *di = (PVEBackupDevInfo *)l->data;
100 - l = g_list_next(l);
101 + /* register all devices for vma writer */
104 + PVEBackupDevInfo *di = (PVEBackupDevInfo *)l->data;
105 + l = g_list_next(l);
107 - const char *devname = bdrv_get_device_name(di->bs);
108 - di->dev_id = vma_writer_register_stream(vmaw, devname, di->size);
109 - if (di->dev_id <= 0) {
110 - error_set(errp, ERROR_CLASS_GENERIC_ERROR,
111 - "register_stream failed");
112 + const char *devname = bdrv_get_device_name(di->bs);
113 + di->dev_id = vma_writer_register_stream(vmaw, devname, di->size);
114 + if (di->dev_id <= 0) {
115 + error_set(errp, ERROR_CLASS_GENERIC_ERROR,
116 + "register_stream failed");
120 + } else if (format == BACKUP_FORMAT_DIR) {
121 + if (mkdir(backup_file, 0640) != 0) {
122 + error_setg_errno(errp, errno, "can't create directory '%s'\n",
126 + backup_dir = backup_file;
130 + PVEBackupDevInfo *di = (PVEBackupDevInfo *)l->data;
131 + l = g_list_next(l);
133 + const char *devname = bdrv_get_device_name(di->bs);
134 + snprintf(di->targetfile, PATH_MAX, "%s/%s.raw", backup_dir, devname);
136 + int flags = BDRV_O_RDWR;
137 + bdrv_img_create(di->targetfile, "raw", NULL, NULL, NULL,
138 + di->size, flags, &local_err, false);
140 + error_propagate(errp, local_err);
144 + di->target = bdrv_open(di->targetfile, NULL, NULL, flags, &local_err);
146 + error_propagate(errp, local_err);
151 + error_set(errp, ERROR_CLASS_GENERIC_ERROR, "unknown backup format");
155 /* add configuration file to archive */
156 @@ -3291,12 +3326,27 @@ UuidInfo *qmp_backup(const char *backup_file, bool has_format,
160 - const char *basename = g_path_get_basename(config_file);
161 - if (vma_writer_add_config(vmaw, basename, cdata, clen) != 0) {
162 - error_setg(errp, "unable to add config data to vma archive");
165 + char *basename = g_path_get_basename(config_file);
167 + if (format == BACKUP_FORMAT_VMA) {
168 + if (vma_writer_add_config(vmaw, basename, cdata, clen) != 0) {
169 + error_setg(errp, "unable to add config data to vma archive");
174 + } else if (format == BACKUP_FORMAT_DIR) {
175 + char config_path[PATH_MAX];
176 + snprintf(config_path, PATH_MAX, "%s/%s", backup_dir, basename);
177 + if (!g_file_set_contents(config_path, cdata, clen, &err)) {
178 + error_setg(errp, "unable to write config file '%s'", config_path);
189 @@ -3335,12 +3385,12 @@ UuidInfo *qmp_backup(const char *backup_file, bool has_format,
191 PVEBackupDevInfo *di = (PVEBackupDevInfo *)l->data;
194 - backup_job_create(NULL, di->bs, NULL, speed, MIRROR_SYNC_MODE_FULL, NULL,
195 - BLOCKDEV_ON_ERROR_REPORT, BLOCKDEV_ON_ERROR_REPORT,
196 - pvebackup_dump_cb, pvebackup_complete_cb, di,
197 - 1, NULL, &local_err);
198 - if (local_err != NULL) {
199 + job = backup_job_create(NULL, di->bs, di->target, speed, MIRROR_SYNC_MODE_FULL, NULL,
200 + false, BLOCKDEV_ON_ERROR_REPORT, BLOCKDEV_ON_ERROR_REPORT,
202 + pvebackup_dump_cb, pvebackup_complete_cb, di,
203 + 1, NULL, &local_err);
204 + if (!job || local_err != NULL) {
205 error_setg(&backup_state.error, "backup_job_create failed");
206 pvebackup_cancel(NULL);
208 @@ -3352,14 +3402,25 @@ UuidInfo *qmp_backup(const char *backup_file, bool has_format,
210 uuid_info = g_malloc0(sizeof(*uuid_info));
211 uuid_info->UUID = g_strdup(backup_state.uuid_str);
213 + block_job_start(job);
221 + PVEBackupDevInfo *di = (PVEBackupDevInfo *)l->data;
225 + bdrv_unref(di->target);
228 + if (di->targetfile[0]) {
229 + unlink(di->targetfile);
233 g_list_free(di_list);
235 @@ -3373,6 +3434,10 @@ err:
246 diff --git a/hmp-commands.hx b/hmp-commands.hx
247 index aea39d0..7288203 100644
248 --- a/hmp-commands.hx
249 +++ b/hmp-commands.hx
250 @@ -89,9 +89,11 @@ ETEXI
254 - .args_type = "backupfile:s,speed:o?,devlist:s?",
255 - .params = "backupfile [speed [devlist]]",
256 - .help = "create a VM Backup.",
257 + .args_type = "directory:-d,backupfile:s,speed:o?,devlist:s?",
258 + .params = "[-d] backupfile [speed [devlist]]",
259 + .help = "create a VM Backup."
260 + "\n\t\t\t Use -d to dump data into a directory instead"
261 + "\n\t\t\t of using VMA format.",
265 diff --git a/hmp.c b/hmp.c
266 index c685ba5..465d7fa 100644
269 @@ -1664,11 +1664,13 @@ void hmp_backup(Monitor *mon, const QDict *qdict)
273 + int dir = qdict_get_try_bool(qdict, "directory", 0);
274 const char *backup_file = qdict_get_str(qdict, "backupfile");
275 const char *devlist = qdict_get_try_str(qdict, "devlist");
276 int64_t speed = qdict_get_try_int(qdict, "speed", 0);
278 - qmp_backup(backup_file, true, BACKUP_FORMAT_VMA, false, NULL, !!devlist,
279 + qmp_backup(backup_file, true, dir ? BACKUP_FORMAT_DIR : BACKUP_FORMAT_VMA,
280 + false, NULL, !!devlist,
281 devlist, qdict_haskey(qdict, "speed"), speed, &error);
283 hmp_handle_error(mon, &error);
284 diff --git a/qapi-schema.json b/qapi-schema.json
285 index 059cbfc..1127f2c 100644
286 --- a/qapi-schema.json
287 +++ b/qapi-schema.json
289 # @vma: Proxmox vma backup format
291 { 'enum': 'BackupFormat',
292 - 'data': [ 'vma' ] }
293 + 'data': [ 'vma', 'dir' ] }
297 diff --git a/vma.c b/vma.c
298 index 8925407..1ffaced 100644
301 @@ -264,7 +264,7 @@ static int extract_content(int argc, char **argv)
305 - int flags = BDRV_O_RDWR|BDRV_O_CACHE_WB;
306 + int flags = BDRV_O_RDWR;
307 bool write_zero = true;