* GNU GPL, version 2 or (at your option) any later version.
*/
-#include <inttypes.h>
+#include "qemu/osdep.h"
-#include "qemu-common.h"
+#include "qapi/error.h"
#include "qemu/error-report.h"
#include "block/block_int.h"
+#include "crypto/secret.h"
+#include "qemu/cutils.h"
#include <rbd/librbd.h>
QEMUIOVector *qiov;
char *bounce;
RBDAIOCmd cmd;
- int64_t sector_num;
int error;
struct BDRVRBDState *s;
- int status;
} RBDAIOCB;
typedef struct RADOSCB {
- int rcbid;
RBDAIOCB *acb;
struct BDRVRBDState *s;
- int done;
int64_t size;
char *buf;
int64_t ret;
} RADOSCB;
-#define RBD_FD_READ 0
-#define RBD_FD_WRITE 1
-
typedef struct BDRVRBDState {
rados_t cluster;
rados_ioctx_t io_ctx;
return NULL;
}
-static int qemu_rbd_set_conf(rados_t cluster, const char *conf, Error **errp)
+
+static int qemu_rbd_set_auth(rados_t cluster, const char *secretid,
+ Error **errp)
+{
+ if (secretid == 0) {
+ return 0;
+ }
+
+ gchar *secret = qcrypto_secret_lookup_as_base64(secretid,
+ errp);
+ if (!secret) {
+ return -1;
+ }
+
+ rados_conf_set(cluster, "key", secret);
+ g_free(secret);
+
+ return 0;
+}
+
+
+static int qemu_rbd_set_conf(rados_t cluster, const char *conf,
+ bool only_read_conf_file,
+ Error **errp)
{
char *p, *buf;
char name[RBD_MAX_CONF_NAME_SIZE];
qemu_rbd_unescape(value);
if (strcmp(name, "conf") == 0) {
- ret = rados_conf_read_file(cluster, value);
- if (ret < 0) {
- error_setg(errp, "error reading conf file %s", value);
- break;
+ /* read the conf file alone, so it doesn't override more
+ specific settings for a particular device */
+ if (only_read_conf_file) {
+ ret = rados_conf_read_file(cluster, value);
+ if (ret < 0) {
+ error_setg_errno(errp, -ret, "error reading conf file %s",
+ value);
+ break;
+ }
}
} else if (strcmp(name, "id") == 0) {
/* ignore, this is parsed by qemu_rbd_parse_clientname() */
- } else {
+ } else if (!only_read_conf_file) {
ret = rados_conf_set(cluster, name, value);
if (ret < 0) {
- error_setg(errp, "invalid conf option %s", name);
+ error_setg_errno(errp, -ret, "invalid conf option %s", name);
ret = -EINVAL;
break;
}
char conf[RBD_MAX_CONF_SIZE];
char clientname_buf[RBD_MAX_CONF_SIZE];
char *clientname;
+ const char *secretid;
rados_t cluster;
rados_ioctx_t io_ctx;
int ret;
+ secretid = qemu_opt_get(opts, "password-secret");
+
if (qemu_rbd_parsename(filename, pool, sizeof(pool),
snap_buf, sizeof(snap_buf),
name, sizeof(name),
error_setg(errp, "obj size too small");
return -EINVAL;
}
- obj_order = ffs(objsize) - 1;
+ obj_order = ctz32(objsize);
}
clientname = qemu_rbd_parse_clientname(conf, clientname_buf);
- if (rados_create(&cluster, clientname) < 0) {
- error_setg(errp, "error initializing");
- return -EIO;
+ ret = rados_create(&cluster, clientname);
+ if (ret < 0) {
+ error_setg_errno(errp, -ret, "error initializing");
+ return ret;
}
if (strstr(conf, "conf=") == NULL) {
/* try default location, but ignore failure */
rados_conf_read_file(cluster, NULL);
+ } else if (conf[0] != '\0' &&
+ qemu_rbd_set_conf(cluster, conf, true, &local_err) < 0) {
+ rados_shutdown(cluster);
+ error_propagate(errp, local_err);
+ return -EIO;
}
if (conf[0] != '\0' &&
- qemu_rbd_set_conf(cluster, conf, &local_err) < 0) {
+ qemu_rbd_set_conf(cluster, conf, false, &local_err) < 0) {
rados_shutdown(cluster);
error_propagate(errp, local_err);
return -EIO;
}
- if (rados_connect(cluster) < 0) {
- error_setg(errp, "error connecting");
+ if (qemu_rbd_set_auth(cluster, secretid, errp) < 0) {
rados_shutdown(cluster);
return -EIO;
}
- if (rados_ioctx_create(cluster, pool, &io_ctx) < 0) {
- error_setg(errp, "error opening pool %s", pool);
+ ret = rados_connect(cluster);
+ if (ret < 0) {
+ error_setg_errno(errp, -ret, "error connecting");
rados_shutdown(cluster);
- return -EIO;
+ return ret;
+ }
+
+ ret = rados_ioctx_create(cluster, pool, &io_ctx);
+ if (ret < 0) {
+ error_setg_errno(errp, -ret, "error opening pool %s", pool);
+ rados_shutdown(cluster);
+ return ret;
}
ret = rbd_create(io_ctx, name, bytes, &obj_order);
rados_ioctx_destroy(io_ctx);
rados_shutdown(cluster);
+ if (ret < 0) {
+ error_setg_errno(errp, -ret, "error rbd create");
+ return ret;
+ }
return ret;
}
}
qemu_vfree(acb->bounce);
acb->common.cb(acb->common.opaque, (acb->ret > 0 ? 0 : acb->ret));
- acb->status = 0;
qemu_aio_unref(acb);
}
.type = QEMU_OPT_STRING,
.help = "Specification of the rbd image",
},
+ {
+ .name = "password-secret",
+ .type = QEMU_OPT_STRING,
+ .help = "ID of secret providing the password",
+ },
{ /* end of list */ }
},
};
char conf[RBD_MAX_CONF_SIZE];
char clientname_buf[RBD_MAX_CONF_SIZE];
char *clientname;
+ const char *secretid;
QemuOpts *opts;
Error *local_err = NULL;
const char *filename;
}
filename = qemu_opt_get(opts, "filename");
+ secretid = qemu_opt_get(opts, "password-secret");
if (qemu_rbd_parsename(filename, pool, sizeof(pool),
snap_buf, sizeof(snap_buf),
clientname = qemu_rbd_parse_clientname(conf, clientname_buf);
r = rados_create(&s->cluster, clientname);
if (r < 0) {
- error_setg(&local_err, "error initializing");
+ error_setg_errno(errp, -r, "error initializing");
goto failed_opts;
}
s->snap = g_strdup(snap_buf);
}
+ if (strstr(conf, "conf=") == NULL) {
+ /* try default location, but ignore failure */
+ rados_conf_read_file(s->cluster, NULL);
+ } else if (conf[0] != '\0') {
+ r = qemu_rbd_set_conf(s->cluster, conf, true, errp);
+ if (r < 0) {
+ goto failed_shutdown;
+ }
+ }
+
+ if (conf[0] != '\0') {
+ r = qemu_rbd_set_conf(s->cluster, conf, false, errp);
+ if (r < 0) {
+ goto failed_shutdown;
+ }
+ }
+
+ if (qemu_rbd_set_auth(s->cluster, secretid, errp) < 0) {
+ r = -EIO;
+ goto failed_shutdown;
+ }
+
/*
* Fallback to more conservative semantics if setting cache
* options fails. Ignore errors from setting rbd_cache because the
rados_conf_set(s->cluster, "rbd_cache", "true");
}
- if (strstr(conf, "conf=") == NULL) {
- /* try default location, but ignore failure */
- rados_conf_read_file(s->cluster, NULL);
- }
-
- if (conf[0] != '\0') {
- r = qemu_rbd_set_conf(s->cluster, conf, errp);
- if (r < 0) {
- goto failed_shutdown;
- }
- }
-
r = rados_connect(s->cluster);
if (r < 0) {
- error_setg(&local_err, "error connecting");
+ error_setg_errno(errp, -r, "error connecting");
goto failed_shutdown;
}
r = rados_ioctx_create(s->cluster, pool, &s->io_ctx);
if (r < 0) {
- error_setg(&local_err, "error opening pool %s", pool);
+ error_setg_errno(errp, -r, "error opening pool %s", pool);
goto failed_shutdown;
}
r = rbd_open(s->io_ctx, s->name, &s->image, s->snap);
if (r < 0) {
- error_setg(&local_err, "error reading header from %s", s->name);
+ error_setg_errno(errp, -r, "error reading header from %s", s->name);
goto failed_open;
}
acb->error = 0;
acb->s = s;
acb->bh = NULL;
- acb->status = -EINPROGRESS;
if (cmd == RBD_AIO_WRITE) {
qemu_iovec_to_buf(acb->qiov, 0, acb->bounce, qiov->size);
size = nb_sectors * BDRV_SECTOR_SIZE;
rcb = g_new(RADOSCB, 1);
- rcb->done = 0;
rcb->acb = acb;
rcb->buf = buf;
rcb->s = acb->s;
const char *snapshot_name)
{
BDRVRBDState *s = bs->opaque;
- int r;
- r = rbd_snap_rollback(s->image, snapshot_name);
- return r;
+ return rbd_snap_rollback(s->image, snapshot_name);
}
static int qemu_rbd_snap_list(BlockDriverState *bs,
}
#endif
+#ifdef LIBRBD_SUPPORTS_INVALIDATE
+static void qemu_rbd_invalidate_cache(BlockDriverState *bs,
+ Error **errp)
+{
+ BDRVRBDState *s = bs->opaque;
+ int r = rbd_invalidate_cache(s->image);
+ if (r < 0) {
+ error_setg_errno(errp, -r, "Failed to invalidate the cache");
+ }
+}
+#endif
+
static QemuOptsList qemu_rbd_create_opts = {
.name = "rbd-create-opts",
.head = QTAILQ_HEAD_INITIALIZER(qemu_rbd_create_opts.head),
.type = QEMU_OPT_SIZE,
.help = "RBD object size"
},
+ {
+ .name = "password-secret",
+ .type = QEMU_OPT_STRING,
+ .help = "ID of secret providing the password",
+ },
{ /* end of list */ }
}
};
.bdrv_snapshot_delete = qemu_rbd_snap_remove,
.bdrv_snapshot_list = qemu_rbd_snap_list,
.bdrv_snapshot_goto = qemu_rbd_snap_rollback,
+#ifdef LIBRBD_SUPPORTS_INVALIDATE
+ .bdrv_invalidate_cache = qemu_rbd_invalidate_cache,
+#endif
};
static void bdrv_rbd_init(void)
projects / qemu.git / blobdiff