@@ -16,6 +16,7 @@
#define GLUSTER_OPT_FILENAME "filename"
#define GLUSTER_OPT_DEBUG "debug"
+#define GLUSTER_DEFAULT_PORT 24007
#define GLUSTER_DEBUG_DEFAULT 4
#define GLUSTER_DEBUG_MAX 9
@@ -40,15 +41,6 @@ typedef struct BDRVGlusterReopenState {
struct glfs_fd *fd;
} BDRVGlusterReopenState;
-typedef struct GlusterConf {
- char *host;
- int port;
- char *volume;
- char *path;
- char *transport;
- int debug_level;
-} GlusterConf;
-
static QemuOptsList qemu_gluster_create_opts = {
.name = "qemu-gluster-create-opts",
@@ -92,18 +84,7 @@ static QemuOptsList runtime_opts = {
};
-static void qemu_gluster_gconf_free(GlusterConf *gconf)
-{
- if (gconf) {
- g_free(gconf->host);
- g_free(gconf->volume);
- g_free(gconf->path);
- g_free(gconf->transport);
- g_free(gconf);
- }
-}
-
-static int parse_volume_options(GlusterConf *gconf, char *path)
+static int parse_volume_options(BlockdevOptionsGluster *gconf, char *path)
{
char *p, *q;
@@ -160,8 +141,10 @@ static int parse_volume_options(GlusterConf *gconf, char *path)
* file=gluster+tcp://host.domain.com:24007/testvol/dir/a.img
* file=gluster+unix:///testvol/dir/a.img?socket=/tmp/glusterd.socket
*/
-static int qemu_gluster_parseuri(GlusterConf *gconf, const char *filename)
+static int qemu_gluster_parse_uri(BlockdevOptionsGluster *gconf,
+ const char *filename)
{
+ GlusterServer *gsconf;
URI *uri;
QueryParams *qp = NULL;
bool is_unix = false;
@@ -172,16 +155,18 @@ static int qemu_gluster_parseuri(GlusterConf *gconf, const char *filename)
return -EINVAL;
}
+ gconf->server = gsconf = g_new0(GlusterServer, 1);
+
/* transport */
if (!uri->scheme || !strcmp(uri->scheme, "gluster")) {
- gconf->transport = g_strdup("tcp");
+ gsconf->type = GLUSTER_TRANSPORT_TCP;
} else if (!strcmp(uri->scheme, "gluster+tcp")) {
- gconf->transport = g_strdup("tcp");
+ gsconf->type = GLUSTER_TRANSPORT_TCP;
} else if (!strcmp(uri->scheme, "gluster+unix")) {
- gconf->transport = g_strdup("unix");
+ gsconf->type = GLUSTER_TRANSPORT_UNIX;
is_unix = true;
} else if (!strcmp(uri->scheme, "gluster+rdma")) {
- gconf->transport = g_strdup("tcp");
+ gsconf->type = GLUSTER_TRANSPORT_TCP;
error_report("Warning: rdma feature is not supported, falling "
"back to tcp");
} else {
@@ -209,10 +194,14 @@ static int qemu_gluster_parseuri(GlusterConf *gconf, const char *filename)
ret = -EINVAL;
goto out;
}
- gconf->host = g_strdup(qp->p[0].value);
+ gsconf->u.q_unix.path = g_strdup(qp->p[0].value);
} else {
- gconf->host = g_strdup(uri->server ? uri->server : "localhost");
- gconf->port = uri->port;
+ gsconf->u.tcp.host = g_strdup(uri->server ? uri->server : "localhost");
+ if (uri->port) {
+ gsconf->u.tcp.port = g_strdup_printf("%d", uri->port);
+ } else {
+ gsconf->u.tcp.port = g_strdup_printf("%d", GLUSTER_DEFAULT_PORT);
+ }
}
out:
@@ -223,17 +212,18 @@ out:
return ret;
}
-static struct glfs *qemu_gluster_init(GlusterConf *gconf, const char *filename,
- Error **errp)
+static struct glfs *qemu_gluster_init(BlockdevOptionsGluster *gconf,
+ const char *filename, Error **errp)
{
struct glfs *glfs = NULL;
int ret;
int old_errno;
- ret = qemu_gluster_parseuri(gconf, filename);
+ ret = qemu_gluster_parse_uri(gconf, filename);
if (ret < 0) {
- error_setg(errp, "Usage: file=gluster[+transport]://[host[:port]]/"
- "volume/path[?socket=...]");
+ error_setg(errp, "Invalid URI");
+ error_append_hint(errp, "Usage: file=gluster[+transport]://"
+ "[host[:port]]/volume/path[?socket=...]\n");
errno = -ret;
goto out;
}
@@ -243,8 +233,16 @@ static struct glfs *qemu_gluster_init(GlusterConf *gconf, const char *filename,
goto out;
}
- ret = glfs_set_volfile_server(glfs, gconf->transport, gconf->host,
- gconf->port);
+ if (gconf->server->type == GLUSTER_TRANSPORT_UNIX) {
+ ret = glfs_set_volfile_server(glfs,
+ GlusterTransport_lookup[gconf->server->type],
+ gconf->server->u.q_unix.path, 0);
+ } else {
+ ret = glfs_set_volfile_server(glfs,
+ GlusterTransport_lookup[gconf->server->type],
+ gconf->server->u.tcp.host,
+ atoi(gconf->server->u.tcp.port));
+ }
if (ret < 0) {
goto out;
}
@@ -256,15 +254,22 @@ static struct glfs *qemu_gluster_init(GlusterConf *gconf, const char *filename,
ret = glfs_init(glfs);
if (ret) {
- error_setg_errno(errp, errno,
- "Gluster connection failed for host=%s port=%d "
- "volume=%s path=%s transport=%s", gconf->host,
- gconf->port, gconf->volume, gconf->path,
- gconf->transport);
+ if (gconf->server->type == GLUSTER_TRANSPORT_UNIX) {
+ error_setg(errp,
+ "Gluster connection for volume %s, path %s failed on "
+ "socket %s ", gconf->volume, gconf->path,
+ gconf->server->u.q_unix.path);
+ } else {
+ error_setg(errp,
+ "Gluster connection for volume %s, path %s failed on "
+ "host %s and port %s ", gconf->volume, gconf->path,
+ gconf->server->u.tcp.host, gconf->server->u.tcp.port);
+ }
/* glfs_init sometimes doesn't set errno although docs suggest that */
- if (errno == 0)
+ if (errno == 0) {
errno = EINVAL;
+ }
goto out;
}
@@ -352,7 +357,7 @@ static int qemu_gluster_open(BlockDriverState *bs, QDict *options,
BDRVGlusterState *s = bs->opaque;
int open_flags = 0;
int ret = 0;
- GlusterConf *gconf = g_new0(GlusterConf, 1);
+ BlockdevOptionsGluster *gconf = NULL;
QemuOpts *opts;
Error *local_err = NULL;
const char *filename;
@@ -375,7 +380,9 @@ static int qemu_gluster_open(BlockDriverState *bs, QDict *options,
s->debug_level = GLUSTER_DEBUG_MAX;
}
+ gconf = g_new0(BlockdevOptionsGluster, 1);
gconf->debug_level = s->debug_level;
+ gconf->has_debug_level = true;
s->glfs = qemu_gluster_init(gconf, filename, errp);
if (!s->glfs) {
ret = -errno;
@@ -410,7 +417,7 @@ static int qemu_gluster_open(BlockDriverState *bs, QDict *options,
out:
qemu_opts_del(opts);
- qemu_gluster_gconf_free(gconf);
+ qapi_free_BlockdevOptionsGluster(gconf);
if (!ret) {
return ret;
}
@@ -429,7 +436,7 @@ static int qemu_gluster_reopen_prepare(BDRVReopenState *state,
int ret = 0;
BDRVGlusterState *s;
BDRVGlusterReopenState *reop_s;
- GlusterConf *gconf = NULL;
+ BlockdevOptionsGluster *gconf;
int open_flags = 0;
assert(state != NULL);
@@ -442,9 +449,9 @@ static int qemu_gluster_reopen_prepare(BDRVReopenState *state,
qemu_gluster_parse_flags(state->flags, &open_flags);
- gconf = g_new0(GlusterConf, 1);
-
+ gconf = g_new0(BlockdevOptionsGluster, 1);
gconf->debug_level = s->debug_level;
+ gconf->has_debug_level = true;
reop_s->glfs = qemu_gluster_init(gconf, state->bs->filename, errp);
if (reop_s->glfs == NULL) {
ret = -errno;
@@ -470,7 +477,7 @@ static int qemu_gluster_reopen_prepare(BDRVReopenState *state,
exit:
/* state->opaque will be freed in either the _abort or _commit */
- qemu_gluster_gconf_free(gconf);
+ qapi_free_BlockdevOptionsGluster(gconf);
return ret;
}
@@ -572,14 +579,15 @@ static inline int qemu_gluster_zerofill(struct glfs_fd *fd, int64_t offset,
static int qemu_gluster_create(const char *filename,
QemuOpts *opts, Error **errp)
{
+ BlockdevOptionsGluster *gconf;
struct glfs *glfs;
struct glfs_fd *fd;
int ret = 0;
int prealloc = 0;
int64_t total_size = 0;
char *tmp = NULL;
- GlusterConf *gconf = g_new0(GlusterConf, 1);
+ gconf = g_new0(BlockdevOptionsGluster, 1);
gconf->debug_level = qemu_opt_get_number_del(opts, GLUSTER_OPT_DEBUG,
GLUSTER_DEBUG_DEFAULT);
if (gconf->debug_level < 0) {
@@ -587,6 +595,7 @@ static int qemu_gluster_create(const char *filename,
} else if (gconf->debug_level > GLUSTER_DEBUG_MAX) {
gconf->debug_level = GLUSTER_DEBUG_MAX;
}
+ gconf->has_debug_level = true;
glfs = qemu_gluster_init(gconf, filename, errp);
if (!glfs) {
@@ -628,7 +637,7 @@ static int qemu_gluster_create(const char *filename,
}
out:
g_free(tmp);
- qemu_gluster_gconf_free(gconf);
+ qapi_free_BlockdevOptionsGluster(gconf);
if (glfs) {
glfs_fini(glfs);
}
@@ -1666,13 +1666,14 @@
# @host_device, @host_cdrom: Since 2.1
#
# Since: 2.0
+# @gluster: Since 2.7
##
{ 'enum': 'BlockdevDriver',
'data': [ 'archipelago', 'blkdebug', 'blkverify', 'bochs', 'cloop',
- 'dmg', 'file', 'ftp', 'ftps', 'host_cdrom', 'host_device',
- 'http', 'https', 'luks', 'null-aio', 'null-co', 'parallels',
- 'qcow', 'qcow2', 'qed', 'quorum', 'raw', 'tftp', 'vdi', 'vhdx',
- 'vmdk', 'vpc', 'vvfat' ] }
+ 'dmg', 'file', 'ftp', 'ftps', 'gluster', 'host_cdrom',
+ 'host_device', 'http', 'https', 'luks', 'null-aio', 'null-co',
+ 'parallels', 'qcow', 'qcow2', 'qed', 'quorum', 'raw', 'tftp',
+ 'vdi', 'vhdx', 'vmdk', 'vpc', 'vvfat' ] }
##
# @BlockdevOptionsFile
@@ -2065,6 +2066,63 @@
'*read-pattern': 'QuorumReadPattern' } }
##
+# @GlusterTransport
+#
+# An enumeration of Gluster transport types
+#
+# @tcp: TCP - Transmission Control Protocol
+#
+# @unix: UNIX - Unix domain socket
+#
+# Since: 2.7
+##
+{ 'enum': 'GlusterTransport',
+ 'data': [ 'unix', 'tcp' ] }
+
+
+##
+# @GlusterServer
+#
+# Captures the address of a socket
+#
+# Details for connecting to a gluster server
+#
+# @type: Transport type used for gluster connection
+#
+# @unix: socket file
+#
+# @tcp: host address and port number
+#
+# Since: 2.7
+##
+{ 'union': 'GlusterServer',
+ 'base': { 'type': 'GlusterTransport' },
+ 'discriminator': 'type',
+ 'data': { 'unix': 'UnixSocketAddress',
+ 'tcp': 'InetSocketAddress' } }
+
+##
+# @BlockdevOptionsGluster
+#
+# Driver specific block device options for Gluster
+#
+# @volume: name of gluster volume where VM image resides
+#
+# @path: absolute path to image file in gluster volume
+#
+# @server: gluster server description
+#
+# @debug-level: #optional libgfapi log level (default '4' which is Error)
+#
+# Since: 2.7
+##
+{ 'struct': 'BlockdevOptionsGluster',
+ 'data': { 'volume': 'str',
+ 'path': 'str',
+ 'server': 'GlusterServer',
+ '*debug_level': 'int' } }
+
+##
# @BlockdevOptions
#
# Options for creating a block device. Many options are available for all
@@ -2111,7 +2169,7 @@
'file': 'BlockdevOptionsFile',
'ftp': 'BlockdevOptionsFile',
'ftps': 'BlockdevOptionsFile',
-# TODO gluster: Wait for structured options
+ 'gluster': 'BlockdevOptionsGluster',
'host_cdrom': 'BlockdevOptionsFile',
'host_device':'BlockdevOptionsFile',
'http': 'BlockdevOptionsFile',