1 files changed, 153 insertions, 0 deletions
diff --git a/bcacheadm-run.c b/bcacheadm-run.c
new file mode 100644
index 00000000..8f995a1d
--- /dev/null
+++ b/bcacheadm-run.c
@@ -0,0 +1,153 @@
+
+#include <errno.h>
+#include <stdbool.h>
+#include <stdio.h>
+#include <stdlib.h>
+#include <string.h>
+
+#include <fcntl.h>
+#include <sys/ioctl.h>
+#include <unistd.h>
+
+#include <nih/command.h>
+#include <nih/option.h>
+
+#include <linux/bcache-ioctl.h>
+
+#include <uuid/uuid.h>
+
+#include "bcache.h"
+#include "bcacheadm-run.h"
+
+static bool force_data = false;
+static bool force_metadata = false;
+
+NihOption opts_run[] = {
+	NIH_OPTION_LAST
+};
+
+int cmd_run(NihCommand *command, char *const *args)
+{
+	return 0;
+}
+
+NihOption opts_stop[] = {
+	NIH_OPTION_LAST
+};
+
+int cmd_stop(NihCommand *command, char *const *args)
+{
+	int bcachefd = open("/dev/bcache_extent0", O_RDWR);
+	if (bcachefd < 0)
+		die("Can't open bcache device");
+
+	int ret = ioctl(bcachefd, BCH_IOCTL_STOP);
+	if (ret < 0)
+		die("BCH_IOCTL_STOP error: %s", strerror(errno));
+
+	close(bcachefd);
+	return 0;
+}
+
+NihOption opts_add[] = {
+	NIH_OPTION_LAST
+};
+
+int cmd_add(NihCommand *command, char *const *args)
+{
+	if (nr_args(args) != 1)
+		die("Please supply exactly one device");
+
+	int ret, bcachefd;
+
+	bcachefd = open("/dev/bcache_extent0", O_RDWR);
+	if (bcachefd < 0)
+		die("Can't open bcache device: %s", strerror(errno));
+
+	struct bch_ioctl_disk_add ia = {
+		.dev = (__u64) args[0],
+	};
+
+	ret = ioctl(bcachefd, BCH_IOCTL_DISK_ADD, &ia);
+	if (ret < 0)
+		die("BCH_IOCTL_DISK_ADD error: %s", strerror(ret));
+
+	close(bcachefd);
+	return 0;
+}
+
+NihOption opts_readd[] = {
+	NIH_OPTION_LAST
+};
+
+int cmd_readd(NihCommand *command, char *const *args)
+{
+	if (nr_args(args) != 1)
+		die("Please supply exactly one device");
+
+	return 0;
+}
+
+NihOption opts_remove[] = {
+	{
+		'f', "force", N_("force if data present"),
+		NULL, NULL, &force_data, NULL
+	},
+	{
+		'\0', "force-metadata", N_("force if metadata present"),
+		NULL, NULL, &force_metadata, NULL},
+	NIH_OPTION_LAST
+};
+
+int cmd_remove(NihCommand *command, char *const *args)
+{
+	if (nr_args(args) != 1)
+		die("Please supply exactly one device");
+
+	int bcachefd = open("/dev/bcache_extent0", O_RDWR);
+	if (bcachefd < 0)
+		die("Can't open bcache device");
+
+	struct bch_ioctl_disk_remove ir = {
+		.dev = (__u64) args[0],
+	};
+
+	if (force_data)
+		ir.flags |= BCH_FORCE_IF_DATA_MISSING;
+	if (force_metadata)
+		ir.flags |= BCH_FORCE_IF_METADATA_MISSING;
+
+	int ret = ioctl(bcachefd, BCH_IOCTL_DISK_REMOVE, &ir);
+	if (ret < 0)
+		die("BCH_IOCTL_DISK_REMOVE error: %s\n", strerror(errno));
+
+	close(bcachefd);
+	return 0;
+}
+
+static const char *dev_failed_uuid = NULL;
+
+NihOption opts_fail[] = {
+	{'d', "dev", N_("dev UUID"), NULL, "UUID", &dev_failed_uuid, NULL},
+	NIH_OPTION_LAST
+};
+
+int cmd_fail(NihCommand *command, char *const *args)
+{
+	if (nr_args(args) != 1)
+		die("Please supply exactly one device");
+
+	int bcachefd = open("/dev/bcache_extent0", O_RDWR);
+	if (bcachefd < 0)
+		die("Can't open bcache device");
+
+	struct bch_ioctl_disk_fail df = {
+		.dev = (__u64) args[0],
+	};
+
+	int ret = ioctl(bcachefd, BCH_IOCTL_DISK_FAIL, &df);
+	if (ret < 0)
+		die("BCH_IOCTL_DISK_FAIL error: %s\n", strerror(errno));
+
+	return 0;
+}