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"
37 " reset-counters Reset all counters on an unmounted device\n"
39 #ifndef BCACHEFS_NO_RUST
41 " mount Mount a filesystem\n"
45 " fsck Check an existing filesystem for errors\n"
48 "Startup/shutdown, assembly of multi device filesystems:\n"
49 " assemble Assemble an existing multi device filesystem\n"
50 " incremental Incrementally assemble an existing multi device filesystem\n"
51 " run Start a partially assembled filesystem\n"
52 " stop Stop a running filesystem\n"
55 "Commands for managing a running filesystem:\n"
56 " fs usage Show disk usage\n"
58 "Commands for managing devices within a running filesystem:\n"
59 " device add Add a new device to an existing filesystem\n"
60 " device remove Remove a device from an existing filesystem\n"
61 " device online Re-add an existing member to a filesystem\n"
62 " device offline Take a device offline, without removing it\n"
63 " device evacuate Migrate data off of a specific device\n"
64 " device set-state Mark a device as failed\n"
65 " device resize Resize filesystem on a device\n"
66 " device resize-journal Resize journal on a device\n"
68 "Commands for managing subvolumes and snapshots:\n"
69 " subvolume create Create a new subvolume\n"
70 " subvolume delete Delete an existing subvolume\n"
71 " subvolume snapshot Create a snapshot\n"
73 "Commands for managing filesystem data:\n"
74 " data rereplicate Rereplicate degraded data\n"
75 " data job Kick off low level data jobs\n"
78 " unlock Unlock an encrypted filesystem prior to running/mounting\n"
79 " set-passphrase Change passphrase on an existing (unmounted) filesystem\n"
80 " remove-passphrase Remove passphrase on an existing (unmounted) filesystem\n"
83 " migrate Migrate an existing filesystem to bcachefs, in place\n"
84 " migrate-superblock Add default superblock, after bcachefs migrate\n"
86 "Commands for operating on files in a bcachefs filesystem:\n"
87 " setattr Set various per file attributes\n"
90 "These commands work on offline, unmounted filesystems\n"
91 " dump Dump filesystem metadata to a qcow2 image\n"
92 #ifndef BCACHEFS_NO_RUST
93 " list List filesystem metadata in textual form\n"
95 " list_journal List contents of journal\n"
98 " fusemount Mount a filesystem via FUSE\n"
101 #ifndef BCACHEFS_NO_RUST
102 " completions Generate shell completions\n"
104 " version Display the version of the invoked bcachefs tool\n");
107 static char *pop_cmd(int *argc, char *argv[])
111 memmove(&argv[1], &argv[2], (*argc - 2) * sizeof(argv[0]));
118 static int fs_cmds(int argc, char *argv[])
120 char *cmd = pop_cmd(&argc, argv);
126 if (!strcmp(cmd, "usage"))
127 return cmd_fs_usage(argc, argv);
132 static int device_cmds(int argc, char *argv[])
134 char *cmd = pop_cmd(&argc, argv);
137 return device_usage();
138 if (!strcmp(cmd, "add"))
139 return cmd_device_add(argc, argv);
140 if (!strcmp(cmd, "remove"))
141 return cmd_device_remove(argc, argv);
142 if (!strcmp(cmd, "online"))
143 return cmd_device_online(argc, argv);
144 if (!strcmp(cmd, "offline"))
145 return cmd_device_offline(argc, argv);
146 if (!strcmp(cmd, "evacuate"))
147 return cmd_device_evacuate(argc, argv);
148 if (!strcmp(cmd, "set-state"))
149 return cmd_device_set_state(argc, argv);
150 if (!strcmp(cmd, "resize"))
151 return cmd_device_resize(argc, argv);
152 if (!strcmp(cmd, "resize-journal"))
153 return cmd_device_resize_journal(argc, argv);
158 static int data_cmds(int argc, char *argv[])
160 char *cmd = pop_cmd(&argc, argv);
164 if (!strcmp(cmd, "rereplicate"))
165 return cmd_data_rereplicate(argc, argv);
166 if (!strcmp(cmd, "job"))
167 return cmd_data_job(argc, argv);
172 static int subvolume_cmds(int argc, char *argv[])
174 char *cmd = pop_cmd(&argc, argv);
176 return subvolume_usage();
177 if (!strcmp(cmd, "create"))
178 return cmd_subvolume_create(argc, argv);
179 if (!strcmp(cmd, "delete"))
180 return cmd_subvolume_delete(argc, argv);
181 if (!strcmp(cmd, "snapshot"))
182 return cmd_subvolume_snapshot(argc, argv);
187 int main(int argc, char *argv[])
191 char *full_cmd = argv[0];
193 /* Are we being called via a symlink? */
195 if (strstr(full_cmd, "mkfs"))
196 return cmd_format(argc, argv);
198 if (strstr(full_cmd, "fsck"))
199 return cmd_fsck(argc, argv);
202 if (strstr(full_cmd, "mount.fuse"))
203 return cmd_fusemount(argc, argv);
206 #ifndef BCACHEFS_NO_RUST
207 if (strstr(full_cmd, "mount"))
208 return rust_main(argc, argv, "mount");
211 setvbuf(stdout, NULL, _IOLBF, 0);
213 char *cmd = pop_cmd(&argc, argv);
215 puts("missing command\n");
219 /* these subcommands display usage when argc < 2 */
220 if (!strcmp(cmd, "device"))
221 return device_cmds(argc, argv);
222 if (!strcmp(cmd, "fs"))
223 return fs_cmds(argc, argv);
224 if (!strcmp(cmd, "data"))
225 return data_cmds(argc, argv);
226 if (!strcmp(cmd, "subvolume"))
227 return subvolume_cmds(argc, argv);
228 if (!strcmp(cmd, "format"))
229 return cmd_format(argc, argv);
230 if (!strcmp(cmd, "fsck"))
231 return cmd_fsck(argc, argv);
232 if (!strcmp(cmd, "version"))
233 return cmd_version(argc, argv);
234 if (!strcmp(cmd, "show-super"))
235 return cmd_show_super(argc, argv);
236 if (!strcmp(cmd, "set-option"))
237 return cmd_set_option(argc, argv);
238 if (!strcmp(cmd, "reset-counters"))
239 return cmd_reset_counters(argc, argv);
242 if (!strcmp(cmd, "assemble"))
243 return cmd_assemble(argc, argv);
244 if (!strcmp(cmd, "incremental"))
245 return cmd_incremental(argc, argv);
246 if (!strcmp(cmd, "run"))
247 return cmd_run(argc, argv);
248 if (!strcmp(cmd, "stop"))
249 return cmd_stop(argc, argv);
252 if (!strcmp(cmd, "unlock"))
253 return cmd_unlock(argc, argv);
254 if (!strcmp(cmd, "set-passphrase"))
255 return cmd_set_passphrase(argc, argv);
256 if (!strcmp(cmd, "remove-passphrase"))
257 return cmd_remove_passphrase(argc, argv);
259 if (!strcmp(cmd, "migrate"))
260 return cmd_migrate(argc, argv);
261 if (!strcmp(cmd, "migrate-superblock"))
262 return cmd_migrate_superblock(argc, argv);
264 if (!strcmp(cmd, "dump"))
265 return cmd_dump(argc, argv);
266 if (!strcmp(cmd, "list_journal"))
267 return cmd_list_journal(argc, argv);
268 if (!strcmp(cmd, "kill_btree_node"))
269 return cmd_kill_btree_node(argc, argv);
271 if (!strcmp(cmd, "setattr"))
272 return cmd_setattr(argc, argv);
273 #ifndef BCACHEFS_NO_RUST
274 if (!strcmp(cmd, "list") ||
275 !strcmp(cmd, "mount") ||
276 !strcmp(cmd, "completions"))
277 return rust_main(argc, argv, cmd);
281 if (!strcmp(cmd, "fusemount"))
282 return cmd_fusemount(argc, argv);
285 if (!strcmp(cmd, "--help")) {
290 printf("Unknown command %s\n", cmd);