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-rw-r--r--xlators/mgmt/glusterd/src/glusterd-volume-ops.c393
1 files changed, 393 insertions, 0 deletions
diff --git a/xlators/mgmt/glusterd/src/glusterd-volume-ops.c b/xlators/mgmt/glusterd/src/glusterd-volume-ops.c
index 3208ad35537..1ce0faf17ee 100644
--- a/xlators/mgmt/glusterd/src/glusterd-volume-ops.c
+++ b/xlators/mgmt/glusterd/src/glusterd-volume-ops.c
@@ -23,6 +23,7 @@
#endif
#include "common-utils.h"
+#include "syscall.h"
#include "cli1-xdr.h"
#include "xdr-generic.h"
#include "glusterd.h"
@@ -1098,6 +1099,73 @@ out:
}
int
+glusterd_op_stage_clearlocks_volume (dict_t *dict, char **op_errstr)
+{
+ int ret = -1;
+ char *volname = NULL;
+ char *path = NULL;
+ char *type = NULL;
+ char *kind = NULL;
+ glusterd_volinfo_t *volinfo = NULL;
+ char msg[2048] = {0,};
+
+ ret = dict_get_str (dict, "volname", &volname);
+ if (ret) {
+ snprintf (msg, sizeof(msg), "Failed to get volume name");
+ gf_log (THIS->name, GF_LOG_ERROR, "%s", msg);
+ *op_errstr = gf_strdup (msg);
+ goto out;
+ }
+
+ ret = dict_get_str (dict, "path", &path);
+ if (ret) {
+ snprintf (msg, sizeof(msg), "Failed to get path");
+ gf_log (THIS->name, GF_LOG_ERROR, "%s", msg);
+ *op_errstr = gf_strdup (msg);
+ goto out;
+ }
+
+ ret = dict_get_str (dict, "kind", &kind);
+ if (ret) {
+ snprintf (msg, sizeof(msg), "Failed to get kind");
+ gf_log ("", GF_LOG_ERROR, "%s", msg);
+ *op_errstr = gf_strdup (msg);
+ goto out;
+ }
+
+ ret = dict_get_str (dict, "type", &type);
+ if (ret) {
+ snprintf (msg, sizeof(msg), "Failed to get type");
+ gf_log ("", GF_LOG_ERROR, "%s", msg);
+ *op_errstr = gf_strdup (msg);
+ goto out;
+ }
+
+ ret = glusterd_volinfo_find (volname, &volinfo);
+ if (ret) {
+ snprintf (msg, sizeof(msg), "Volume %s does not exist",
+ volname);
+ gf_log ("", GF_LOG_ERROR, "%s", msg);
+ *op_errstr = gf_strdup (msg);
+ goto out;
+ }
+
+ if (!glusterd_is_volume_started (volinfo)) {
+ snprintf (msg, sizeof(msg), "Volume %s is not started",
+ volname);
+ gf_log ("", GF_LOG_ERROR, "%s", msg);
+ *op_errstr = gf_strdup (msg);
+ goto out;
+ }
+
+ ret = 0;
+out:
+ gf_log ("", GF_LOG_DEBUG, "Returning %d", ret);
+ return ret;
+}
+
+
+int
glusterd_op_create_volume (dict_t *dict, char **op_errstr)
{
int ret = 0;
@@ -1431,3 +1499,328 @@ out:
return ret;
}
+int
+glusterd_clearlocks_send_cmd (glusterd_volinfo_t *volinfo, char *cmd,
+ char *path, char *result, char *errstr,
+ int err_len, char *mntpt)
+{
+ int ret = -1;
+ glusterd_conf_t *priv = NULL;
+
+ priv = THIS->private;
+
+ ret = sys_lgetxattr (mntpt, cmd, result, PATH_MAX);
+ if (ret < 0) {
+ snprintf (errstr, err_len, "clear-locks getxattr command "
+ "failed. Reason: %s", strerror (errno));
+ gf_log (THIS->name, GF_LOG_DEBUG, "%s", errstr);
+ goto out;
+ }
+
+ ret = 0;
+out:
+ return ret;
+}
+
+int
+glusterd_clearlocks_rmdir_mount (glusterd_volinfo_t *volinfo, char *mntpt)
+{
+ int ret = -1;
+ glusterd_conf_t *priv = NULL;
+
+ priv = THIS->private;
+
+ ret = rmdir (mntpt);
+ if (ret) {
+ gf_log (THIS->name, GF_LOG_DEBUG, "rmdir failed");
+ goto out;
+ }
+
+ ret = 0;
+out:
+ return ret;
+}
+
+void
+glusterd_clearlocks_unmount (glusterd_volinfo_t *volinfo, char *mntpt)
+{
+ glusterd_conf_t *priv = NULL;
+ runner_t runner = {0,};
+ int ret = 0;
+
+ priv = THIS->private;
+
+ /*umount failures are ignored. Using stat we could have avoided
+ * attempting to unmount a non-existent filesystem. But a failure of
+ * stat() on mount can be due to network failures.*/
+
+ runinit (&runner);
+ runner_add_args (&runner, "/bin/umount", "-f", NULL);
+ runner_argprintf (&runner, "%s", mntpt);
+
+ ret = runner_run (&runner);
+ if (ret) {
+ ret = 0;
+ gf_log ("", GF_LOG_DEBUG,
+ "umount failed on maintenance client");
+ }
+
+ return;
+}
+
+int
+glusterd_clearlocks_create_mount (glusterd_volinfo_t *volinfo, char **mntpt)
+{
+ int ret = -1;
+ glusterd_conf_t *priv = NULL;
+ char template[PATH_MAX] = {0,};
+ char *tmpl = NULL;
+
+ priv = THIS->private;
+
+ snprintf (template, sizeof (template), "/tmp/%s.XXXXXX",
+ volinfo->volname);
+ tmpl = mkdtemp (template);
+ if (!tmpl) {
+ gf_log (THIS->name, GF_LOG_DEBUG, "Couldn't create temporary "
+ "mount directory. Reason %s", strerror (errno));
+ goto out;
+ }
+
+ *mntpt = gf_strdup (tmpl);
+ ret = 0;
+out:
+ return ret;
+}
+
+int
+glusterd_clearlocks_mount (glusterd_volinfo_t *volinfo, char **xl_opts,
+ char *mntpt)
+{
+ int ret = -1;
+ int i = 0;
+ glusterd_conf_t *priv = NULL;
+ runner_t runner = {0,};
+ char client_volfpath[PATH_MAX] = {0,};
+
+ priv = THIS->private;
+
+ runinit (&runner);
+ glusterd_get_client_filepath (client_volfpath, volinfo,
+ volinfo->transport_type);
+ runner_add_args (&runner, SBIN_DIR"/glusterfs", "-f", NULL);
+ runner_argprintf (&runner, "%s", client_volfpath);
+
+ for (i = 0; i < volinfo->brick_count && xl_opts[i]; i++) {
+ runner_add_arg (&runner, "--xlator-option");
+ runner_argprintf (&runner, "%s", xl_opts[i]);
+ }
+
+ runner_argprintf (&runner, "%s", mntpt);
+ ret = runner_run (&runner);
+ if (ret) {
+ gf_log (THIS->name, GF_LOG_DEBUG,
+ "Could not start glusterfs");
+ goto out;
+ }
+ gf_log (THIS->name, GF_LOG_DEBUG,
+ "Started glusterfs successfully");
+
+out:
+ return ret;
+}
+
+int
+glusterd_clearlocks_get_local_client_ports (glusterd_volinfo_t *volinfo,
+ char **xl_opts)
+{
+ glusterd_brickinfo_t *brickinfo = NULL;
+ glusterd_conf_t *priv = NULL;
+ int index = 0;
+ int ret = -1;
+ int i = 0;
+ int port = 0;
+
+ GF_ASSERT (xl_opts);
+ if (!xl_opts) {
+ gf_log (THIS->name, GF_LOG_DEBUG, "Should pass non-NULL "
+ "xl_opts");
+ goto out;
+ }
+
+ priv = THIS->private;
+
+ index = -1;
+ list_for_each_entry (brickinfo, &volinfo->bricks, brick_list) {
+ index++;
+ if (uuid_compare (brickinfo->uuid, priv->uuid))
+ continue;
+
+ port = pmap_registry_search (THIS, brickinfo->path,
+ GF_PMAP_PORT_BRICKSERVER);
+ if (!port) {
+ ret = -1;
+ gf_log (THIS->name, GF_LOG_DEBUG, "Couldn't get port "
+ " for brick %s:%s", brickinfo->hostname,
+ brickinfo->path);
+ goto out;
+ }
+
+ ret = gf_asprintf (&xl_opts[i], "%s-client-%d.remote-port=%d",
+ volinfo->volname, index, port);
+ if (ret == -1) {
+ xl_opts[i] = NULL;
+ goto out;
+ }
+ i++;
+ }
+
+ ret = 0;
+out:
+ return ret;
+}
+
+int
+glusterd_op_clearlocks_volume (dict_t *dict, char **op_errstr)
+{
+ int32_t ret = -1;
+ int i = 0;
+ char *volname = NULL;
+ char *path = NULL;
+ char *kind = NULL;
+ char *type = NULL;
+ char *opts = NULL;
+ char *cmd_str = NULL;
+ char *free_ptr = NULL;
+ char msg[PATH_MAX] = {0,};
+ char result[PATH_MAX] = {0,};
+ char *mntpt = NULL;
+ char **xl_opts = NULL;
+ dict_t *ctx = NULL;
+ glusterd_volinfo_t *volinfo = NULL;
+
+ ret = dict_get_str (dict, "volname", &volname);
+ if (ret) {
+ gf_log (THIS->name, GF_LOG_ERROR, "Failed to get volume name");
+ goto out;
+ }
+ gf_log ("", GF_LOG_DEBUG, "Performing clearlocks on volume %s", volname);
+
+ ret = dict_get_str (dict, "path", &path);
+ if (ret) {
+ gf_log (THIS->name, GF_LOG_ERROR, "Failed to get path");
+ goto out;
+ }
+
+ ret = dict_get_str (dict, "kind", &kind);
+ if (ret) {
+ gf_log (THIS->name, GF_LOG_ERROR, "Failed to get kind");
+ goto out;
+ }
+
+ ret = dict_get_str (dict, "type", &type);
+ if (ret) {
+ gf_log (THIS->name, GF_LOG_ERROR, "Failed to get type");
+ goto out;
+ }
+
+ ret = dict_get_str (dict, "opts", &opts);
+ if (ret)
+ ret = 0;
+
+ gf_log (THIS->name, GF_LOG_INFO, "Received clear-locks request for "
+ "volume %s with kind %s type %s and options %s", volname,
+ kind, type, opts);
+
+ if (opts)
+ ret = gf_asprintf (&cmd_str, GF_XATTR_CLRLK_CMD".t%s.k%s.%s",
+ type, kind, opts);
+ else
+ ret = gf_asprintf (&cmd_str, GF_XATTR_CLRLK_CMD".t%s.k%s",
+ type, kind);
+ if (ret == -1)
+ goto out;
+
+ ret = glusterd_volinfo_find (volname, &volinfo);
+ if (ret) {
+ snprintf (msg, sizeof (msg), "Volume %s doesn't exist.",
+ volname);
+ gf_log (THIS->name, GF_LOG_ERROR, "%s", msg);
+ goto out;
+ }
+
+ xl_opts = GF_CALLOC (volinfo->brick_count+1, sizeof (char*),
+ gf_gld_mt_charptr);
+ if (!xl_opts)
+ goto out;
+
+ ret = glusterd_clearlocks_get_local_client_ports (volinfo, xl_opts);
+ if (ret) {
+ snprintf (msg, sizeof (msg), "Couldn't get port numbers of "
+ "local bricks");
+ gf_log (THIS->name, GF_LOG_ERROR, "%s", msg);
+ goto out;
+ }
+
+ ret = glusterd_clearlocks_create_mount (volinfo, &mntpt);
+ if (ret) {
+ snprintf (msg, sizeof (msg), "Creating mount directory "
+ "for clear-locks failed.");
+ gf_log (THIS->name, GF_LOG_ERROR, "%s", msg);
+ goto out;
+ }
+
+ ret = glusterd_clearlocks_mount (volinfo, xl_opts, mntpt);
+ if (ret) {
+ snprintf (msg, sizeof (msg), "Failed to mount clear-locks "
+ "maintenance client.");
+ gf_log (THIS->name, GF_LOG_ERROR, "%s", msg);
+ goto out;
+ }
+
+ ret = glusterd_clearlocks_send_cmd (volinfo, cmd_str, path, result,
+ msg, sizeof (msg), mntpt);
+ if (ret) {
+ gf_log (THIS->name, GF_LOG_ERROR, "%s", msg);
+ goto umount;
+ }
+
+ ctx = glusterd_op_get_ctx ();
+ if (!ctx)
+ /*Impossible. Only originator glusterd can
+ * come here. */
+ goto umount;
+
+ free_ptr = gf_strdup(result);
+ if (dict_set_dynstr (ctx, "lk-summary", free_ptr)) {
+ GF_FREE (free_ptr);
+ snprintf (msg, sizeof (msg), "Failed to set clear-locks "
+ "result");
+ gf_log (THIS->name, GF_LOG_ERROR, "%s", msg);
+ }
+
+umount:
+ glusterd_clearlocks_unmount (volinfo, mntpt);
+
+ if (glusterd_clearlocks_rmdir_mount (volinfo, mntpt))
+ gf_log (THIS->name, GF_LOG_WARNING, "Couldn't unmount "
+ "clear-locks mount point");
+
+out:
+ if (ret)
+ *op_errstr = gf_strdup (msg);
+
+ if (xl_opts) {
+ for (i = 0; i < volinfo->brick_count && xl_opts[i]; i++)
+ GF_FREE (xl_opts[i]);
+ GF_FREE (xl_opts);
+ }
+
+ if (cmd_str)
+ GF_FREE (cmd_str);
+
+ if (mntpt)
+ GF_FREE (mntpt);
+
+ return ret;
+}
generated by cgit (git 2.34.1) at 2024-11-19 00:25:09 +0000