]> git.sesse.net Git - bcachefs-tools-debian/blobdiff - c_src/bcachefs.c
move Rust sources to top level, C sources into c_src
[bcachefs-tools-debian] / c_src / bcachefs.c
diff --git a/c_src/bcachefs.c b/c_src/bcachefs.c
new file mode 100644 (file)
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+/*
+ * Authors: Kent Overstreet <kent.overstreet@gmail.com>
+ *         Gabriel de Perthuis <g2p.code@gmail.com>
+ *         Jacob Malevich <jam@datera.io>
+ *
+ * GPLv2
+ */
+
+#include <stdlib.h>
+#include <stdio.h>
+#include <ctype.h>
+#include <errno.h>
+#include <inttypes.h>
+#include <limits.h>
+#include <fcntl.h>
+#include <unistd.h>
+#include <stdbool.h>
+#include <stdint.h>
+#include <string.h>
+#include <sys/ioctl.h>
+#include <sys/types.h>
+#include <sys/stat.h>
+
+#include <raid/raid.h>
+
+#include "cmds.h"
+
+void bcachefs_usage(void)
+{
+       puts("bcachefs - tool for managing bcachefs filesystems\n"
+            "usage: bcachefs <command> [<args>]\n"
+            "\n"
+            "Superblock commands:\n"
+            "  format                   Format a new filesystem\n"
+            "  show-super               Dump superblock information to stdout\n"
+            "  set-option               Set a filesystem option\n"
+            "  reset-counters           Reset all counters on an unmounted device\n"
+            "\n"
+            "Mount:\n"
+            "  mount                    Mount a filesystem\n"
+            "\n"
+            "Repair:\n"
+            "  fsck                     Check an existing filesystem for errors\n"
+            "\n"
+#if 0
+            "Startup/shutdown, assembly of multi device filesystems:\n"
+            "  assemble                 Assemble an existing multi device filesystem\n"
+            "  incremental              Incrementally assemble an existing multi device filesystem\n"
+            "  run                      Start a partially assembled filesystem\n"
+            "  stop                     Stop a running filesystem\n"
+            "\n"
+#endif
+            "Commands for managing a running filesystem:\n"
+            "  fs usage                 Show disk usage\n"
+            "\n"
+            "Commands for managing devices within a running filesystem:\n"
+            "  device add               Add a new device to an existing filesystem\n"
+            "  device remove            Remove a device from an existing filesystem\n"
+            "  device online            Re-add an existing member to a filesystem\n"
+            "  device offline           Take a device offline, without removing it\n"
+            "  device evacuate          Migrate data off of a specific device\n"
+            "  device set-state         Mark a device as failed\n"
+            "  device resize            Resize filesystem on a device\n"
+            "  device resize-journal    Resize journal on a device\n"
+            "\n"
+            "Commands for managing subvolumes and snapshots:\n"
+            "  subvolume create         Create a new subvolume\n"
+            "  subvolume delete         Delete an existing subvolume\n"
+            "  subvolume snapshot       Create a snapshot\n"
+            "\n"
+            "Commands for managing filesystem data:\n"
+            "  data rereplicate         Rereplicate degraded data\n"
+            "  data job                 Kick off low level data jobs\n"
+            "\n"
+            "Encryption:\n"
+            "  unlock                   Unlock an encrypted filesystem prior to running/mounting\n"
+            "  set-passphrase           Change passphrase on an existing (unmounted) filesystem\n"
+            "  remove-passphrase        Remove passphrase on an existing (unmounted) filesystem\n"
+            "\n"
+            "Migrate:\n"
+            "  migrate                  Migrate an existing filesystem to bcachefs, in place\n"
+            "  migrate-superblock       Add default superblock, after bcachefs migrate\n"
+            "\n"
+            "Commands for operating on files in a bcachefs filesystem:\n"
+            "  setattr                  Set various per file attributes\n"
+            "\n"
+            "Debug:\n"
+            "These commands work on offline, unmounted filesystems\n"
+            "  dump                     Dump filesystem metadata to a qcow2 image\n"
+            "  list                     List filesystem metadata in textual form\n"
+            "  list_journal             List contents of journal\n"
+            "\n"
+            "FUSE:\n"
+            "  fusemount                Mount a filesystem via FUSE\n"
+            "\n"
+            "Miscellaneous:\n"
+         "  completions              Generate shell completions\n"
+            "  version                  Display the version of the invoked bcachefs tool\n");
+}
+
+static char *pop_cmd(int *argc, char *argv[])
+{
+       char *cmd = argv[1];
+       if (!(*argc < 2))
+               memmove(&argv[1], &argv[2], (*argc - 2) * sizeof(argv[0]));
+       (*argc)--;
+       argv[*argc] = NULL;
+
+       return cmd;
+}
+
+int fs_cmds(int argc, char *argv[])
+{
+       char *cmd = pop_cmd(&argc, argv);
+
+       if (argc < 1) {
+               bcachefs_usage();
+               exit(EXIT_FAILURE);
+       }
+       if (!strcmp(cmd, "usage"))
+               return cmd_fs_usage(argc, argv);
+
+       return 0;
+}
+
+int device_cmds(int argc, char *argv[])
+{
+       char *cmd = pop_cmd(&argc, argv);
+
+       if (argc < 1)
+               return device_usage();
+       if (!strcmp(cmd, "add"))
+               return cmd_device_add(argc, argv);
+       if (!strcmp(cmd, "remove"))
+               return cmd_device_remove(argc, argv);
+       if (!strcmp(cmd, "online"))
+               return cmd_device_online(argc, argv);
+       if (!strcmp(cmd, "offline"))
+               return cmd_device_offline(argc, argv);
+       if (!strcmp(cmd, "evacuate"))
+               return cmd_device_evacuate(argc, argv);
+       if (!strcmp(cmd, "set-state"))
+               return cmd_device_set_state(argc, argv);
+       if (!strcmp(cmd, "resize"))
+               return cmd_device_resize(argc, argv);
+       if (!strcmp(cmd, "resize-journal"))
+               return cmd_device_resize_journal(argc, argv);
+
+       return 0;
+}
+
+int data_cmds(int argc, char *argv[])
+{
+       char *cmd = pop_cmd(&argc, argv);
+
+       if (argc < 1)
+               return data_usage();
+       if (!strcmp(cmd, "rereplicate"))
+               return cmd_data_rereplicate(argc, argv);
+       if (!strcmp(cmd, "job"))
+               return cmd_data_job(argc, argv);
+
+       return 0;
+}
+
+int subvolume_cmds(int argc, char *argv[])
+{
+       char *cmd = pop_cmd(&argc, argv);
+       if (argc < 1)
+               return subvolume_usage();
+       if (!strcmp(cmd, "create"))
+               return cmd_subvolume_create(argc, argv);
+       if (!strcmp(cmd, "delete"))
+               return cmd_subvolume_delete(argc, argv);
+       if (!strcmp(cmd, "snapshot"))
+               return cmd_subvolume_snapshot(argc, argv);
+
+       return 0;
+}