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block/gluster: using new qapi schema
this patch adds 'GlusterServer' related schema in qapi/block-core.json [Jeff: minor fix-ups of comments and formatting, per patch reviews] Signed-off-by: Prasanna Kumar Kalever <prasanna.kalever@redhat.com> Reviewed-by: Markus Armbruster <armbru@redhat.com> Reviewed-by: Eric Blake <eblake@redhat.com> Message-id: 1468947453-5433-5-git-send-email-prasanna.kalever@redhat.com Signed-off-by: Jeff Cody <jcody@redhat.com>
This commit is contained in:
Prasanna Kumar Kalever
Jeff Cody
parent
0552ff2465
commit
7edac2ddeb
2 changed files with 122 additions and 55 deletions
109
block/gluster.c
109
block/gluster.c
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@ -16,6 +16,7 @@
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#define GLUSTER_OPT_FILENAME "filename"
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#define GLUSTER_OPT_DEBUG "debug"
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#define GLUSTER_DEFAULT_PORT 24007
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#define GLUSTER_DEBUG_DEFAULT 4
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#define GLUSTER_DEBUG_MAX 9
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@ -40,15 +41,6 @@ typedef struct BDRVGlusterReopenState {
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struct glfs_fd *fd;
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} BDRVGlusterReopenState;
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typedef struct GlusterConf {
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char *host;
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int port;
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char *volume;
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char *path;
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char *transport;
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int debug_level;
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} GlusterConf;
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static QemuOptsList qemu_gluster_create_opts = {
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.name = "qemu-gluster-create-opts",
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@ -92,18 +84,7 @@ static QemuOptsList runtime_opts = {
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};
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static void qemu_gluster_gconf_free(GlusterConf *gconf)
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{
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if (gconf) {
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g_free(gconf->host);
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g_free(gconf->volume);
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g_free(gconf->path);
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g_free(gconf->transport);
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g_free(gconf);
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}
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}
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static int parse_volume_options(GlusterConf *gconf, char *path)
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static int parse_volume_options(BlockdevOptionsGluster *gconf, char *path)
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{
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char *p, *q;
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@ -160,8 +141,10 @@ static int parse_volume_options(GlusterConf *gconf, char *path)
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* file=gluster+tcp://host.domain.com:24007/testvol/dir/a.img
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* file=gluster+unix:///testvol/dir/a.img?socket=/tmp/glusterd.socket
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*/
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static int qemu_gluster_parseuri(GlusterConf *gconf, const char *filename)
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static int qemu_gluster_parse_uri(BlockdevOptionsGluster *gconf,
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const char *filename)
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{
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GlusterServer *gsconf;
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URI *uri;
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QueryParams *qp = NULL;
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bool is_unix = false;
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@ -172,16 +155,18 @@ static int qemu_gluster_parseuri(GlusterConf *gconf, const char *filename)
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return -EINVAL;
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}
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gconf->server = gsconf = g_new0(GlusterServer, 1);
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/* transport */
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if (!uri->scheme || !strcmp(uri->scheme, "gluster")) {
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gconf->transport = g_strdup("tcp");
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gsconf->type = GLUSTER_TRANSPORT_TCP;
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} else if (!strcmp(uri->scheme, "gluster+tcp")) {
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gconf->transport = g_strdup("tcp");
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gsconf->type = GLUSTER_TRANSPORT_TCP;
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} else if (!strcmp(uri->scheme, "gluster+unix")) {
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gconf->transport = g_strdup("unix");
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gsconf->type = GLUSTER_TRANSPORT_UNIX;
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is_unix = true;
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} else if (!strcmp(uri->scheme, "gluster+rdma")) {
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gconf->transport = g_strdup("tcp");
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gsconf->type = GLUSTER_TRANSPORT_TCP;
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error_report("Warning: rdma feature is not supported, falling "
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"back to tcp");
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} else {
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@ -209,10 +194,14 @@ static int qemu_gluster_parseuri(GlusterConf *gconf, const char *filename)
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ret = -EINVAL;
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goto out;
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}
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gconf->host = g_strdup(qp->p[0].value);
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gsconf->u.q_unix.path = g_strdup(qp->p[0].value);
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} else {
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gconf->host = g_strdup(uri->server ? uri->server : "localhost");
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gconf->port = uri->port;
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gsconf->u.tcp.host = g_strdup(uri->server ? uri->server : "localhost");
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if (uri->port) {
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gsconf->u.tcp.port = g_strdup_printf("%d", uri->port);
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} else {
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gsconf->u.tcp.port = g_strdup_printf("%d", GLUSTER_DEFAULT_PORT);
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}
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}
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out:
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@ -223,17 +212,18 @@ out:
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return ret;
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}
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static struct glfs *qemu_gluster_init(GlusterConf *gconf, const char *filename,
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Error **errp)
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static struct glfs *qemu_gluster_init(BlockdevOptionsGluster *gconf,
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const char *filename, Error **errp)
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{
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struct glfs *glfs = NULL;
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int ret;
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int old_errno;
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ret = qemu_gluster_parseuri(gconf, filename);
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ret = qemu_gluster_parse_uri(gconf, filename);
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if (ret < 0) {
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error_setg(errp, "Usage: file=gluster[+transport]://[host[:port]]/"
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"volume/path[?socket=...]");
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error_setg(errp, "Invalid URI");
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error_append_hint(errp, "Usage: file=gluster[+transport]://"
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"[host[:port]]/volume/path[?socket=...]\n");
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errno = -ret;
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goto out;
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}
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@ -243,8 +233,16 @@ static struct glfs *qemu_gluster_init(GlusterConf *gconf, const char *filename,
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goto out;
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}
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ret = glfs_set_volfile_server(glfs, gconf->transport, gconf->host,
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gconf->port);
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if (gconf->server->type == GLUSTER_TRANSPORT_UNIX) {
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ret = glfs_set_volfile_server(glfs,
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GlusterTransport_lookup[gconf->server->type],
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gconf->server->u.q_unix.path, 0);
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} else {
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ret = glfs_set_volfile_server(glfs,
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GlusterTransport_lookup[gconf->server->type],
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gconf->server->u.tcp.host,
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atoi(gconf->server->u.tcp.port));
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}
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if (ret < 0) {
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goto out;
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}
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@ -256,15 +254,22 @@ static struct glfs *qemu_gluster_init(GlusterConf *gconf, const char *filename,
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ret = glfs_init(glfs);
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if (ret) {
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error_setg_errno(errp, errno,
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"Gluster connection failed for host=%s port=%d "
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"volume=%s path=%s transport=%s", gconf->host,
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gconf->port, gconf->volume, gconf->path,
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gconf->transport);
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if (gconf->server->type == GLUSTER_TRANSPORT_UNIX) {
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error_setg(errp,
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"Gluster connection for volume %s, path %s failed on "
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"socket %s ", gconf->volume, gconf->path,
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gconf->server->u.q_unix.path);
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} else {
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error_setg(errp,
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"Gluster connection for volume %s, path %s failed on "
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"host %s and port %s ", gconf->volume, gconf->path,
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gconf->server->u.tcp.host, gconf->server->u.tcp.port);
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}
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/* glfs_init sometimes doesn't set errno although docs suggest that */
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if (errno == 0)
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if (errno == 0) {
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errno = EINVAL;
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}
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goto out;
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}
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@ -352,7 +357,7 @@ static int qemu_gluster_open(BlockDriverState *bs, QDict *options,
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BDRVGlusterState *s = bs->opaque;
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int open_flags = 0;
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int ret = 0;
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GlusterConf *gconf = g_new0(GlusterConf, 1);
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BlockdevOptionsGluster *gconf = NULL;
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QemuOpts *opts;
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Error *local_err = NULL;
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const char *filename;
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@ -375,7 +380,9 @@ static int qemu_gluster_open(BlockDriverState *bs, QDict *options,
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s->debug_level = GLUSTER_DEBUG_MAX;
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}
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gconf = g_new0(BlockdevOptionsGluster, 1);
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gconf->debug_level = s->debug_level;
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gconf->has_debug_level = true;
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s->glfs = qemu_gluster_init(gconf, filename, errp);
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if (!s->glfs) {
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ret = -errno;
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@ -410,7 +417,7 @@ static int qemu_gluster_open(BlockDriverState *bs, QDict *options,
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out:
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qemu_opts_del(opts);
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qemu_gluster_gconf_free(gconf);
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qapi_free_BlockdevOptionsGluster(gconf);
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if (!ret) {
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return ret;
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}
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@ -429,7 +436,7 @@ static int qemu_gluster_reopen_prepare(BDRVReopenState *state,
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int ret = 0;
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BDRVGlusterState *s;
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BDRVGlusterReopenState *reop_s;
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GlusterConf *gconf = NULL;
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BlockdevOptionsGluster *gconf;
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int open_flags = 0;
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assert(state != NULL);
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@ -442,9 +449,9 @@ static int qemu_gluster_reopen_prepare(BDRVReopenState *state,
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qemu_gluster_parse_flags(state->flags, &open_flags);
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gconf = g_new0(GlusterConf, 1);
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gconf = g_new0(BlockdevOptionsGluster, 1);
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gconf->debug_level = s->debug_level;
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gconf->has_debug_level = true;
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reop_s->glfs = qemu_gluster_init(gconf, state->bs->filename, errp);
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if (reop_s->glfs == NULL) {
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ret = -errno;
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@ -470,7 +477,7 @@ static int qemu_gluster_reopen_prepare(BDRVReopenState *state,
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exit:
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/* state->opaque will be freed in either the _abort or _commit */
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qemu_gluster_gconf_free(gconf);
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qapi_free_BlockdevOptionsGluster(gconf);
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return ret;
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}
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@ -572,14 +579,15 @@ static inline int qemu_gluster_zerofill(struct glfs_fd *fd, int64_t offset,
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static int qemu_gluster_create(const char *filename,
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QemuOpts *opts, Error **errp)
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{
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BlockdevOptionsGluster *gconf;
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struct glfs *glfs;
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struct glfs_fd *fd;
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int ret = 0;
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int prealloc = 0;
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int64_t total_size = 0;
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char *tmp = NULL;
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GlusterConf *gconf = g_new0(GlusterConf, 1);
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gconf = g_new0(BlockdevOptionsGluster, 1);
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gconf->debug_level = qemu_opt_get_number_del(opts, GLUSTER_OPT_DEBUG,
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GLUSTER_DEBUG_DEFAULT);
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if (gconf->debug_level < 0) {
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@ -587,6 +595,7 @@ static int qemu_gluster_create(const char *filename,
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} else if (gconf->debug_level > GLUSTER_DEBUG_MAX) {
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gconf->debug_level = GLUSTER_DEBUG_MAX;
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}
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gconf->has_debug_level = true;
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glfs = qemu_gluster_init(gconf, filename, errp);
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if (!glfs) {
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@ -628,7 +637,7 @@ static int qemu_gluster_create(const char *filename,
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}
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out:
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g_free(tmp);
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qemu_gluster_gconf_free(gconf);
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qapi_free_BlockdevOptionsGluster(gconf);
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if (glfs) {
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glfs_fini(glfs);
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}
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