2 * Authors: Kent Overstreet <kent.overstreet@gmail.com>
3 * Gabriel de Perthuis <g2p.code@gmail.com>
4 * Jacob Malevich <jam@datera.io>
20 #include <sys/ioctl.h>
21 #include <sys/types.h>
24 #include <raid/raid.h>
28 static void usage(void)
30 puts("bcachefs - tool for managing bcachefs filesystems\n"
31 "usage: bcachefs <command> [<args>]\n"
33 "Superblock commands:\n"
34 " format Format a new filesystem\n"
35 " show-super Dump superblock information to stdout\n"
36 " set-option Set a filesystem option\n"
38 #ifndef BCACHEFS_NO_RUST
40 " mount Mount a filesystem\n"
44 " fsck Check an existing filesystem for errors\n"
47 "Startup/shutdown, assembly of multi device filesystems:\n"
48 " assemble Assemble an existing multi device filesystem\n"
49 " incremental Incrementally assemble an existing multi device filesystem\n"
50 " run Start a partially assembled filesystem\n"
51 " stop Stop a running filesystem\n"
54 "Commands for managing a running filesystem:\n"
55 " fs usage Show disk usage\n"
57 "Commands for managing devices within a running filesystem:\n"
58 " device add Add a new device to an existing filesystem\n"
59 " device remove Remove a device from an existing filesystem\n"
60 " device online Re-add an existing member to a filesystem\n"
61 " device offline Take a device offline, without removing it\n"
62 " device evacuate Migrate data off of a specific device\n"
63 " device set-state Mark a device as failed\n"
64 " device resize Resize filesystem on a device\n"
65 " device resize-journal Resize journal on a device\n"
67 "Commands for managing subvolumes and snapshots:\n"
68 " subvolume create Create a new subvolume\n"
69 " subvolume delete Delete an existing subvolume\n"
70 " subvolume snapshot Create a snapshot\n"
72 "Commands for managing filesystem data:\n"
73 " data rereplicate Rereplicate degraded data\n"
74 " data job Kick off low level data jobs\n"
77 " unlock Unlock an encrypted filesystem prior to running/mounting\n"
78 " set-passphrase Change passphrase on an existing (unmounted) filesystem\n"
79 " remove-passphrase Remove passphrase on an existing (unmounted) filesystem\n"
82 " migrate Migrate an existing filesystem to bcachefs, in place\n"
83 " migrate-superblock Add default superblock, after bcachefs migrate\n"
85 "Commands for operating on files in a bcachefs filesystem:\n"
86 " setattr Set various per file attributes\n"
89 "These commands work on offline, unmounted filesystems\n"
90 " dump Dump filesystem metadata to a qcow2 image\n"
91 #ifndef BCACHEFS_NO_RUST
92 " list List filesystem metadata in textual form\n"
94 " list_journal List contents of journal\n"
97 " fusemount Mount a filesystem via FUSE\n"
100 #ifndef BCACHEFS_NO_RUST
101 " completions Generate shell completions\n"
103 " version Display the version of the invoked bcachefs tool\n");
106 static char *full_cmd;
108 static char *pop_cmd(int *argc, char *argv[])
112 memmove(&argv[1], &argv[2], *argc * sizeof(argv[0]));
115 full_cmd = mprintf("%s %s", full_cmd, cmd);
119 static int fs_cmds(int argc, char *argv[])
121 char *cmd = pop_cmd(&argc, argv);
127 if (!strcmp(cmd, "usage"))
128 return cmd_fs_usage(argc, argv);
133 static int device_cmds(int argc, char *argv[])
135 char *cmd = pop_cmd(&argc, argv);
138 return device_usage();
139 if (!strcmp(cmd, "add"))
140 return cmd_device_add(argc, argv);
141 if (!strcmp(cmd, "remove"))
142 return cmd_device_remove(argc, argv);
143 if (!strcmp(cmd, "online"))
144 return cmd_device_online(argc, argv);
145 if (!strcmp(cmd, "offline"))
146 return cmd_device_offline(argc, argv);
147 if (!strcmp(cmd, "evacuate"))
148 return cmd_device_evacuate(argc, argv);
149 if (!strcmp(cmd, "set-state"))
150 return cmd_device_set_state(argc, argv);
151 if (!strcmp(cmd, "resize"))
152 return cmd_device_resize(argc, argv);
153 if (!strcmp(cmd, "resize-journal"))
154 return cmd_device_resize_journal(argc, argv);
159 static int data_cmds(int argc, char *argv[])
161 char *cmd = pop_cmd(&argc, argv);
165 if (!strcmp(cmd, "rereplicate"))
166 return cmd_data_rereplicate(argc, argv);
167 if (!strcmp(cmd, "job"))
168 return cmd_data_job(argc, argv);
173 static int subvolume_cmds(int argc, char *argv[])
175 char *cmd = pop_cmd(&argc, argv);
177 return subvolume_usage();
178 if (!strcmp(cmd, "create"))
179 return cmd_subvolume_create(argc, argv);
180 if (!strcmp(cmd, "delete"))
181 return cmd_subvolume_delete(argc, argv);
182 if (!strcmp(cmd, "snapshot"))
183 return cmd_subvolume_snapshot(argc, argv);
188 int main(int argc, char *argv[])
190 /* we don't want to swap */
191 mlockall(MCL_FUTURE);
196 /* Are we being called via a symlink? */
198 if (strstr(full_cmd, "mkfs"))
199 return cmd_format(argc, argv);
201 if (strstr(full_cmd, "fsck"))
202 return cmd_fsck(argc, argv);
205 if (strstr(full_cmd, "mount.fuse"))
206 return cmd_fusemount(argc, argv);
209 #ifndef BCACHEFS_NO_RUST
210 if (strstr(full_cmd, "mount"))
211 return cmd_mount(argc, argv);
214 setvbuf(stdout, NULL, _IOLBF, 0);
216 char *cmd = pop_cmd(&argc, argv);
218 puts("missing command\n");
222 /* these subcommands display usage when argc < 2 */
223 if (!strcmp(cmd, "device"))
224 return device_cmds(argc, argv);
225 if (!strcmp(cmd, "fs"))
226 return fs_cmds(argc, argv);
227 if (!strcmp(cmd, "data"))
228 return data_cmds(argc, argv);
229 if (!strcmp(cmd, "subvolume"))
230 return subvolume_cmds(argc, argv);
231 if (!strcmp(cmd, "format"))
232 return cmd_format(argc, argv);
233 if (!strcmp(cmd, "fsck"))
234 return cmd_fsck(argc, argv);
235 if (!strcmp(cmd, "version"))
236 return cmd_version(argc, argv);
237 if (!strcmp(cmd, "show-super"))
238 return cmd_show_super(argc, argv);
239 if (!strcmp(cmd, "set-option"))
240 return cmd_set_option(argc, argv);
243 if (!strcmp(cmd, "assemble"))
244 return cmd_assemble(argc, argv);
245 if (!strcmp(cmd, "incremental"))
246 return cmd_incremental(argc, argv);
247 if (!strcmp(cmd, "run"))
248 return cmd_run(argc, argv);
249 if (!strcmp(cmd, "stop"))
250 return cmd_stop(argc, argv);
253 if (!strcmp(cmd, "unlock"))
254 return cmd_unlock(argc, argv);
255 if (!strcmp(cmd, "set-passphrase"))
256 return cmd_set_passphrase(argc, argv);
257 if (!strcmp(cmd, "remove-passphrase"))
258 return cmd_remove_passphrase(argc, argv);
260 if (!strcmp(cmd, "migrate"))
261 return cmd_migrate(argc, argv);
262 if (!strcmp(cmd, "migrate-superblock"))
263 return cmd_migrate_superblock(argc, argv);
265 if (!strcmp(cmd, "dump"))
266 return cmd_dump(argc, argv);
267 #ifndef BCACHEFS_NO_RUST
268 if (!strcmp(cmd, "list"))
269 return cmd_list(argc, argv);
271 if (!strcmp(cmd, "list_journal"))
272 return cmd_list_journal(argc, argv);
273 if (!strcmp(cmd, "kill_btree_node"))
274 return cmd_kill_btree_node(argc, argv);
276 if (!strcmp(cmd, "setattr"))
277 return cmd_setattr(argc, argv);
278 #ifndef BCACHEFS_NO_RUST
279 if (!strcmp(cmd, "mount"))
280 return cmd_mount(argc, argv);
281 if (strstr(cmd, "completions"))
282 return cmd_completions(argc, argv);
286 if (!strcmp(cmd, "fusemount"))
287 return cmd_fusemount(argc, argv);
290 if (!strcmp(cmd, "--help")) {
295 printf("Unknown command %s\n", cmd);