+#include <ctype.h>
+#include <dirent.h>
#include <errno.h>
#include <fcntl.h>
#include <stdbool.h>
#include <stdlib.h>
#include <string.h>
#include <sys/stat.h>
+#include <sys/sysmacros.h>
#include <sys/types.h>
#include <time.h>
#include <unistd.h>
#include <uuid/uuid.h>
+#include "libbcachefs.h"
+#include "crypto.h"
#include "libbcachefs/bcachefs_format.h"
+#include "libbcachefs/btree_cache.h"
#include "libbcachefs/checksum.h"
-#include "crypto.h"
-#include "libbcachefs.h"
+#include "libbcachefs/disk_groups.h"
+#include "libbcachefs/journal_seq_blacklist.h"
#include "libbcachefs/opts.h"
+#include "libbcachefs/replicas.h"
#include "libbcachefs/super-io.h"
+#include "tools-util.h"
#define NSEC_PER_SEC 1000000000L
-#define BCH_MIN_NR_NBUCKETS (1 << 10)
-
-/* minimum size filesystem we can create, given a bucket size: */
-static u64 min_size(unsigned bucket_size)
-{
- return BCH_MIN_NR_NBUCKETS * bucket_size;
-}
-
-static void init_layout(struct bch_sb_layout *l, unsigned block_size,
- u64 start, u64 end)
+static void init_layout(struct bch_sb_layout *l,
+ unsigned block_size,
+ unsigned sb_size,
+ u64 sb_start, u64 sb_end)
{
- unsigned sb_size;
- u64 backup; /* offset of 2nd sb */
+ u64 sb_pos = sb_start;
+ unsigned i;
memset(l, 0, sizeof(*l));
- if (start != BCH_SB_SECTOR)
- start = round_up(start, block_size);
- end = round_down(end, block_size);
-
- if (start >= end)
- die("insufficient space for superblocks");
-
- /*
- * Create two superblocks in the allowed range: reserve a maximum of 64k
- */
- sb_size = min_t(u64, 128, end - start / 2);
-
- backup = start + sb_size;
- backup = round_up(backup, block_size);
-
- backup = min(backup, end);
-
- sb_size = min(end - backup, backup- start);
- sb_size = rounddown_pow_of_two(sb_size);
-
- if (sb_size < 8)
- die("insufficient space for superblocks");
-
l->magic = BCACHE_MAGIC;
l->layout_type = 0;
l->nr_superblocks = 2;
l->sb_max_size_bits = ilog2(sb_size);
- l->sb_offset[0] = cpu_to_le64(start);
- l->sb_offset[1] = cpu_to_le64(backup);
+
+ /* Create two superblocks in the allowed range: */
+ for (i = 0; i < l->nr_superblocks; i++) {
+ if (sb_pos != BCH_SB_SECTOR)
+ sb_pos = round_up(sb_pos, block_size);
+
+ l->sb_offset[i] = cpu_to_le64(sb_pos);
+ sb_pos += sb_size;
+ }
+
+ if (sb_pos > sb_end)
+ die("insufficient space for superblocks: start %llu end %llu > %llu size %u",
+ sb_start, sb_pos, sb_end, sb_size);
}
-void bch2_pick_bucket_size(struct format_opts opts, struct dev_opts *dev)
+/* minimum size filesystem we can create, given a bucket size: */
+static u64 min_size(unsigned bucket_size)
{
- if (!dev->sb_offset) {
- dev->sb_offset = BCH_SB_SECTOR;
- dev->sb_end = BCH_SB_SECTOR + 256;
- }
+ return BCH_MIN_NR_NBUCKETS * bucket_size;
+}
+void bch2_pick_bucket_size(struct bch_opts opts, struct dev_opts *dev)
+{
if (!dev->size)
- dev->size = get_size(dev->path, dev->fd) >> 9;
+ dev->size = get_size(dev->path, dev->fd);
if (!dev->bucket_size) {
if (dev->size < min_size(opts.block_size))
- die("cannot format %s, too small (%llu sectors, min %llu)",
+ die("cannot format %s, too small (%llu bytes, min %llu)",
dev->path, dev->size, min_size(opts.block_size));
/* Bucket size must be >= block size: */
dev->bucket_size = opts.block_size;
/* Bucket size must be >= btree node size: */
- dev->bucket_size = max(dev->bucket_size, opts.btree_node_size);
+ if (opt_defined(opts, btree_node_size))
+ dev->bucket_size = max_t(unsigned, dev->bucket_size,
+ opts.btree_node_size);
/* Want a bucket size of at least 128k, if possible: */
- dev->bucket_size = max(dev->bucket_size, 256U);
+ dev->bucket_size = max(dev->bucket_size, 128ULL << 10);
if (dev->size >= min_size(dev->bucket_size)) {
unsigned scale = max(1,
- ilog2(dev->size / min_size(dev->bucket_size)) / 4);
+ ilog2(dev->size / min_size(dev->bucket_size)) / 4);
scale = rounddown_pow_of_two(scale);
/* max bucket size 1 mb */
- dev->bucket_size = min(dev->bucket_size * scale, 1U << 11);
+ dev->bucket_size = min(dev->bucket_size * scale, 1ULL << 20);
} else {
do {
dev->bucket_size /= 2;
}
}
- dev->nbuckets = dev->size / dev->bucket_size;
+ dev->nbuckets = dev->size / dev->bucket_size;
if (dev->bucket_size < opts.block_size)
- die("Bucket size cannot be smaller than block size");
+ die("Bucket size (%llu) cannot be smaller than block size (%u)",
+ dev->bucket_size, opts.block_size);
- if (dev->bucket_size < opts.btree_node_size)
- die("Bucket size cannot be smaller than btree node size");
+ if (opt_defined(opts, btree_node_size) &&
+ dev->bucket_size < opts.btree_node_size)
+ die("Bucket size (%llu) cannot be smaller than btree node size (%u)",
+ dev->bucket_size, opts.btree_node_size);
if (dev->nbuckets < BCH_MIN_NR_NBUCKETS)
- die("Not enough buckets: %llu, need %u (bucket size %u)",
+ die("Not enough buckets: %llu, need %u (bucket size %llu)",
dev->nbuckets, BCH_MIN_NR_NBUCKETS, dev->bucket_size);
+ if (dev->bucket_size > (u32) U16_MAX << 9)
+ die("Bucket size (%llu) too big (max %u)",
+ dev->bucket_size, (u32) U16_MAX << 9);
}
-struct bch_sb *bch2_format(struct format_opts opts,
- struct dev_opts *devs, size_t nr_devs)
+static unsigned parse_target(struct bch_sb_handle *sb,
+ struct dev_opts *devs, size_t nr_devs,
+ const char *s)
{
- struct bch_sb *sb;
+ struct dev_opts *i;
+ int idx;
+
+ if (!s)
+ return 0;
+
+ for (i = devs; i < devs + nr_devs; i++)
+ if (!strcmp(s, i->path))
+ return dev_to_target(i - devs);
+
+ idx = bch2_disk_path_find(sb, s);
+ if (idx >= 0)
+ return group_to_target(idx);
+
+ die("Invalid target %s", s);
+ return 0;
+}
+
+struct bch_sb *bch2_format(struct bch_opt_strs fs_opt_strs,
+ struct bch_opts fs_opts,
+ struct format_opts opts,
+ struct dev_opts *devs,
+ size_t nr_devs)
+{
+ struct bch_sb_handle sb = { NULL };
struct dev_opts *i;
struct bch_sb_field_members *mi;
- unsigned u64s;
+ unsigned max_dev_block_size = 0;
+ unsigned opt_id;
+
+ for (i = devs; i < devs + nr_devs; i++)
+ max_dev_block_size = max(max_dev_block_size,
+ get_blocksize(i->path, i->fd));
/* calculate block size: */
- if (!opts.block_size)
- for (i = devs; i < devs + nr_devs; i++)
- opts.block_size = max(opts.block_size,
- get_blocksize(i->path, i->fd));
+ if (!opt_defined(fs_opts, block_size)) {
+ opt_set(fs_opts, block_size, max_dev_block_size);
+ } else if (fs_opts.block_size < max_dev_block_size)
+ die("blocksize too small: %u, must be greater than device blocksize %u",
+ fs_opts.block_size, max_dev_block_size);
/* calculate bucket sizes: */
for (i = devs; i < devs + nr_devs; i++)
- bch2_pick_bucket_size(opts, i);
+ bch2_pick_bucket_size(fs_opts, i);
/* calculate btree node size: */
- if (!opts.btree_node_size) {
+ if (!opt_defined(fs_opts, btree_node_size)) {
/* 256k default btree node size */
- opts.btree_node_size = 512;
+ opt_set(fs_opts, btree_node_size, 256 << 10);
for (i = devs; i < devs + nr_devs; i++)
- opts.btree_node_size =
- min(opts.btree_node_size, i->bucket_size);
+ fs_opts.btree_node_size =
+ min_t(unsigned, fs_opts.btree_node_size,
+ i->bucket_size);
}
- if (!is_power_of_2(opts.block_size))
- die("block size must be power of 2");
-
- if (!is_power_of_2(opts.btree_node_size))
- die("btree node size must be power of 2");
-
if (uuid_is_null(opts.uuid.b))
uuid_generate(opts.uuid.b);
- sb = calloc(1, sizeof(*sb) +
- sizeof(struct bch_sb_field_members) +
- sizeof(struct bch_member) * nr_devs +
- sizeof(struct bch_sb_field_crypt));
+ if (bch2_sb_realloc(&sb, 0))
+ die("insufficient memory");
+
+ sb.sb->version = le16_to_cpu(opts.version);
+ sb.sb->version_min = le16_to_cpu(opts.version);
+ sb.sb->magic = BCACHE_MAGIC;
+ sb.sb->user_uuid = opts.uuid;
+ sb.sb->nr_devices = nr_devs;
- sb->version = cpu_to_le64(BCH_SB_VERSION_MAX);
- sb->magic = BCACHE_MAGIC;
- sb->block_size = cpu_to_le16(opts.block_size);
- sb->user_uuid = opts.uuid;
- sb->nr_devices = nr_devs;
+ if (opts.version == bcachefs_metadata_version_current)
+ sb.sb->features[0] |= BCH_SB_FEATURES_ALL;
- uuid_generate(sb->uuid.b);
+ uuid_generate(sb.sb->uuid.b);
if (opts.label)
- strncpy((char *) sb->label, opts.label, sizeof(sb->label));
+ memcpy(sb.sb->label,
+ opts.label,
+ min(strlen(opts.label), sizeof(sb.sb->label)));
- SET_BCH_SB_CSUM_TYPE(sb, opts.meta_csum_type);
- SET_BCH_SB_META_CSUM_TYPE(sb, opts.meta_csum_type);
- SET_BCH_SB_DATA_CSUM_TYPE(sb, opts.data_csum_type);
- SET_BCH_SB_COMPRESSION_TYPE(sb, opts.compression_type);
+ for (opt_id = 0;
+ opt_id < bch2_opts_nr;
+ opt_id++) {
+ u64 v;
- SET_BCH_SB_BTREE_NODE_SIZE(sb, opts.btree_node_size);
- SET_BCH_SB_GC_RESERVE(sb, 8);
- SET_BCH_SB_META_REPLICAS_WANT(sb, opts.meta_replicas);
- SET_BCH_SB_META_REPLICAS_REQ(sb, opts.meta_replicas_required);
- SET_BCH_SB_DATA_REPLICAS_WANT(sb, opts.data_replicas);
- SET_BCH_SB_DATA_REPLICAS_REQ(sb, opts.data_replicas_required);
- SET_BCH_SB_ERROR_ACTION(sb, opts.on_error_action);
- SET_BCH_SB_STR_HASH_TYPE(sb, BCH_STR_HASH_SIPHASH);
- SET_BCH_SB_ENCODED_EXTENT_MAX_BITS(sb, ilog2(opts.encoded_extent_max));
+ v = bch2_opt_defined_by_id(&fs_opts, opt_id)
+ ? bch2_opt_get_by_id(&fs_opts, opt_id)
+ : bch2_opt_get_by_id(&bch2_opts_default, opt_id);
- SET_BCH_SB_POSIX_ACL(sb, 1);
+ __bch2_opt_set_sb(sb.sb, &bch2_opt_table[opt_id], v);
+ }
struct timespec now;
if (clock_gettime(CLOCK_REALTIME, &now))
die("error getting current time: %m");
- sb->time_base_lo = cpu_to_le64(now.tv_sec * NSEC_PER_SEC + now.tv_nsec);
- sb->time_precision = cpu_to_le32(1);
-
- if (opts.encrypted) {
- struct bch_sb_field_crypt *crypt = vstruct_end(sb);
-
- u64s = sizeof(struct bch_sb_field_crypt) / sizeof(u64);
+ sb.sb->time_base_lo = cpu_to_le64(now.tv_sec * NSEC_PER_SEC + now.tv_nsec);
+ sb.sb->time_precision = cpu_to_le32(1);
- le32_add_cpu(&sb->u64s, u64s);
- crypt->field.u64s = cpu_to_le32(u64s);
- crypt->field.type = BCH_SB_FIELD_crypt;
-
- bch_sb_crypt_init(sb, crypt, opts.passphrase);
- SET_BCH_SB_ENCRYPTION_TYPE(sb, 1);
- }
-
- mi = vstruct_end(sb);
- u64s = (sizeof(struct bch_sb_field_members) +
- sizeof(struct bch_member) * nr_devs) / sizeof(u64);
-
- le32_add_cpu(&sb->u64s, u64s);
- mi->field.u64s = cpu_to_le32(u64s);
- mi->field.type = BCH_SB_FIELD_members;
+ /* Member info: */
+ mi = bch2_sb_resize_members(&sb,
+ (sizeof(*mi) + sizeof(struct bch_member) *
+ nr_devs) / sizeof(u64));
for (i = devs; i < devs + nr_devs; i++) {
struct bch_member *m = mi->members + (i - devs);
uuid_generate(m->uuid.b);
m->nbuckets = cpu_to_le64(i->nbuckets);
m->first_bucket = 0;
- m->bucket_size = cpu_to_le16(i->bucket_size);
+ m->bucket_size = cpu_to_le16(i->bucket_size >> 9);
- SET_BCH_MEMBER_TIER(m, i->tier);
- SET_BCH_MEMBER_REPLACEMENT(m, CACHE_REPLACEMENT_LRU);
SET_BCH_MEMBER_DISCARD(m, i->discard);
SET_BCH_MEMBER_DATA_ALLOWED(m, i->data_allowed);
+ SET_BCH_MEMBER_DURABILITY(m, i->durability + 1);
+ }
+
+ /* Disk labels*/
+ for (i = devs; i < devs + nr_devs; i++) {
+ struct bch_member *m;
+ int idx;
+
+ if (!i->label)
+ continue;
+
+ idx = bch2_disk_path_find_or_create(&sb, i->label);
+ if (idx < 0)
+ die("error creating disk path: %s", strerror(-idx));
+
+ /*
+ * Recompute mi and m after each sb modification: its location
+ * in memory may have changed due to reallocation.
+ */
+ mi = bch2_sb_get_members(sb.sb);
+ m = mi->members + (i - devs);
+
+ SET_BCH_MEMBER_GROUP(m, idx + 1);
+ }
+
+ SET_BCH_SB_FOREGROUND_TARGET(sb.sb,
+ parse_target(&sb, devs, nr_devs, fs_opt_strs.foreground_target));
+ SET_BCH_SB_BACKGROUND_TARGET(sb.sb,
+ parse_target(&sb, devs, nr_devs, fs_opt_strs.background_target));
+ SET_BCH_SB_PROMOTE_TARGET(sb.sb,
+ parse_target(&sb, devs, nr_devs, fs_opt_strs.promote_target));
+ SET_BCH_SB_METADATA_TARGET(sb.sb,
+ parse_target(&sb, devs, nr_devs, fs_opt_strs.metadata_target));
+
+ /* Crypt: */
+ if (opts.encrypted) {
+ struct bch_sb_field_crypt *crypt =
+ bch2_sb_resize_crypt(&sb, sizeof(*crypt) / sizeof(u64));
+
+ bch_sb_crypt_init(sb.sb, crypt, opts.passphrase);
+ SET_BCH_SB_ENCRYPTION_TYPE(sb.sb, 1);
}
for (i = devs; i < devs + nr_devs; i++) {
- sb->dev_idx = i - devs;
+ u64 size_sectors = i->size >> 9;
+
+ sb.sb->dev_idx = i - devs;
+
+ if (!i->sb_offset) {
+ i->sb_offset = BCH_SB_SECTOR;
+ i->sb_end = size_sectors;
+ }
- init_layout(&sb->layout, opts.block_size,
+ init_layout(&sb.sb->layout, fs_opts.block_size,
+ opts.superblock_size,
i->sb_offset, i->sb_end);
+ /*
+ * Also create a backup superblock at the end of the disk:
+ *
+ * If we're not creating a superblock at the default offset, it
+ * means we're being run from the migrate tool and we could be
+ * overwriting existing data if we write to the end of the disk:
+ */
+ if (i->sb_offset == BCH_SB_SECTOR) {
+ struct bch_sb_layout *l = &sb.sb->layout;
+ u64 backup_sb = size_sectors - (1 << l->sb_max_size_bits);
+
+ backup_sb = rounddown(backup_sb, i->bucket_size >> 9);
+ l->sb_offset[l->nr_superblocks++] = cpu_to_le64(backup_sb);
+ }
+
if (i->sb_offset == BCH_SB_SECTOR) {
/* Zero start of disk */
static const char zeroes[BCH_SB_SECTOR << 9];
- xpwrite(i->fd, zeroes, BCH_SB_SECTOR << 9, 0);
+ xpwrite(i->fd, zeroes, BCH_SB_SECTOR << 9, 0,
+ "zeroing start of disk");
}
- bch2_super_write(i->fd, sb);
+ bch2_super_write(i->fd, sb.sb);
close(i->fd);
}
- return sb;
+ return sb.sb;
}
void bch2_super_write(int fd, struct bch_sb *sb)
if (sb->offset == BCH_SB_SECTOR) {
/* Write backup layout */
xpwrite(fd, &sb->layout, sizeof(sb->layout),
- BCH_SB_LAYOUT_SECTOR << 9);
+ BCH_SB_LAYOUT_SECTOR << 9,
+ "backup layout");
}
sb->csum = csum_vstruct(NULL, BCH_SB_CSUM_TYPE(sb), nonce, sb);
xpwrite(fd, sb, vstruct_bytes(sb),
- le64_to_cpu(sb->offset) << 9);
+ le64_to_cpu(sb->offset) << 9,
+ "superblock");
}
fsync(fd);
return ret;
}
-static unsigned get_dev_has_data(struct bch_sb *sb, unsigned dev)
+/* ioctl interface: */
+
+/* Global control device: */
+int bcachectl_open(void)
{
- struct bch_sb_field_replicas *replicas;
- struct bch_replicas_entry *r;
- unsigned i, data_has = 0;
+ return xopen("/dev/bcachefs-ctl", O_RDWR);
+}
- replicas = bch2_sb_get_replicas(sb);
+/* Filesystem handles (ioctl, sysfs dir): */
- if (replicas)
- for_each_replicas_entry(replicas, r)
- for (i = 0; i < r->nr; i++)
- if (r->devs[i] == dev)
- data_has |= 1 << r->data_type;
+#define SYSFS_BASE "/sys/fs/bcachefs/"
- return data_has;
+void bcache_fs_close(struct bchfs_handle fs)
+{
+ close(fs.ioctl_fd);
+ close(fs.sysfs_fd);
}
-void bch2_super_print(struct bch_sb *sb, int units)
+struct bchfs_handle bcache_fs_open(const char *path)
{
- struct bch_sb_field_members *mi;
- char user_uuid_str[40], internal_uuid_str[40];
- char label[BCH_SB_LABEL_SIZE + 1];
+ struct bchfs_handle ret;
+
+ if (!uuid_parse(path, ret.uuid.b)) {
+ /* It's a UUID, look it up in sysfs: */
+ char *sysfs = mprintf(SYSFS_BASE "%s", path);
+ ret.sysfs_fd = xopen(sysfs, O_RDONLY);
+
+ char *minor = read_file_str(ret.sysfs_fd, "minor");
+ char *ctl = mprintf("/dev/bcachefs%s-ctl", minor);
+ ret.ioctl_fd = xopen(ctl, O_RDWR);
+
+ free(sysfs);
+ free(minor);
+ free(ctl);
+ } else {
+ /* It's a path: */
+ ret.ioctl_fd = open(path, O_RDONLY);
+ if (ret.ioctl_fd < 0)
+ die("Error opening filesystem at %s: %m", path);
+
+ struct bch_ioctl_query_uuid uuid;
+ if (ioctl(ret.ioctl_fd, BCH_IOCTL_QUERY_UUID, &uuid) < 0)
+ die("error opening %s: not a bcachefs filesystem", path);
+
+ ret.uuid = uuid.uuid;
+
+ char uuid_str[40];
+ uuid_unparse(uuid.uuid.b, uuid_str);
+
+ char *sysfs = mprintf(SYSFS_BASE "%s", uuid_str);
+ ret.sysfs_fd = xopen(sysfs, O_RDONLY);
+ free(sysfs);
+ }
+
+ return ret;
+}
+
+/*
+ * Given a path to a block device, open the filesystem it belongs to; also
+ * return the device's idx:
+ */
+struct bchfs_handle bchu_fs_open_by_dev(const char *path, int *idx)
+{
+ char buf[1024], *uuid_str;
+
+ struct stat stat = xstat(path);
+
+ if (!S_ISBLK(stat.st_mode))
+ die("%s is not a block device", path);
+
+ char *sysfs = mprintf("/sys/dev/block/%u:%u/bcachefs",
+ major(stat.st_dev),
+ minor(stat.st_dev));
+ ssize_t len = readlink(sysfs, buf, sizeof(buf));
+ free(sysfs);
+
+ if (len > 0) {
+ char *p = strrchr(buf, '/');
+ if (!p || sscanf(p + 1, "dev-%u", idx) != 1)
+ die("error parsing sysfs");
+
+ *p = '\0';
+ p = strrchr(buf, '/');
+ uuid_str = p + 1;
+ } else {
+ struct bch_opts opts = bch2_opts_empty();
+
+ opt_set(opts, noexcl, true);
+ opt_set(opts, nochanges, true);
+
+ struct bch_sb_handle sb;
+ int ret = bch2_read_super(path, &opts, &sb);
+ if (ret)
+ die("Error opening %s: %s", path, strerror(-ret));
+
+ *idx = sb.sb->dev_idx;
+ uuid_str = buf;
+ uuid_unparse(sb.sb->user_uuid.b, uuid_str);
+
+ bch2_free_super(&sb);
+ }
+
+ return bcache_fs_open(uuid_str);
+}
+
+int bchu_dev_path_to_idx(struct bchfs_handle fs, const char *dev_path)
+{
+ int idx;
+ struct bchfs_handle fs2 = bchu_fs_open_by_dev(dev_path, &idx);
+
+ if (memcmp(&fs.uuid, &fs2.uuid, sizeof(fs.uuid)))
+ idx = -1;
+ bcache_fs_close(fs2);
+ return idx;
+}
+
+int bchu_data(struct bchfs_handle fs, struct bch_ioctl_data cmd)
+{
+ int progress_fd = xioctl(fs.ioctl_fd, BCH_IOCTL_DATA, &cmd);
+
+ while (1) {
+ struct bch_ioctl_data_event e;
+
+ if (read(progress_fd, &e, sizeof(e)) != sizeof(e))
+ die("error reading from progress fd %m");
+
+ if (e.type)
+ continue;
+
+ if (e.p.data_type == U8_MAX)
+ break;
+
+ printf("\33[2K\r");
+
+ printf("%llu%% complete: current position %s",
+ e.p.sectors_total
+ ? e.p.sectors_done * 100 / e.p.sectors_total
+ : 0,
+ bch2_data_types[e.p.data_type]);
+
+ switch (e.p.data_type) {
+ case BCH_DATA_btree:
+ case BCH_DATA_user:
+ printf(" %s:%llu:%llu",
+ bch2_btree_ids[e.p.btree_id],
+ e.p.pos.inode,
+ e.p.pos.offset);
+ }
+
+ fflush(stdout);
+ sleep(1);
+ }
+ printf("\nDone\n");
+
+ close(progress_fd);
+ return 0;
+}
+
+/* option parsing */
+
+void bch2_opt_strs_free(struct bch_opt_strs *opts)
+{
+ unsigned i;
+
+ for (i = 0; i < bch2_opts_nr; i++) {
+ free(opts->by_id[i]);
+ opts->by_id[i] = NULL;
+ }
+}
+
+struct bch_opt_strs bch2_cmdline_opts_get(int *argc, char *argv[],
+ unsigned opt_types)
+{
+ struct bch_opt_strs opts;
+ unsigned i = 1;
+
+ memset(&opts, 0, sizeof(opts));
+
+ while (i < *argc) {
+ char *optstr = strcmp_prefix(argv[i], "--");
+ char *valstr = NULL, *p;
+ int optid, nr_args = 1;
+
+ if (!optstr) {
+ i++;
+ continue;
+ }
+
+ optstr = strdup(optstr);
+
+ p = optstr;
+ while (isalpha(*p) || *p == '_')
+ p++;
+
+ if (*p == '=') {
+ *p = '\0';
+ valstr = p + 1;
+ }
+
+ optid = bch2_opt_lookup(optstr);
+ if (optid < 0 ||
+ !(bch2_opt_table[optid].flags & opt_types)) {
+ i++;
+ goto next;
+ }
+
+ if (!valstr &&
+ bch2_opt_table[optid].type != BCH_OPT_BOOL) {
+ nr_args = 2;
+ valstr = argv[i + 1];
+ }
+
+ if (!valstr)
+ valstr = "1";
+
+ opts.by_id[optid] = strdup(valstr);
+
+ *argc -= nr_args;
+ memmove(&argv[i],
+ &argv[i + nr_args],
+ sizeof(char *) * (*argc - i));
+ argv[*argc] = NULL;
+next:
+ free(optstr);
+ }
+
+ return opts;
+}
+
+struct bch_opts bch2_parse_opts(struct bch_opt_strs strs)
+{
+ struct bch_opts opts = bch2_opts_empty();
+ struct printbuf err = PRINTBUF;
unsigned i;
+ int ret;
+ u64 v;
+
+ for (i = 0; i < bch2_opts_nr; i++) {
+ if (!strs.by_id[i] ||
+ bch2_opt_table[i].type == BCH_OPT_FN)
+ continue;
+
+ ret = bch2_opt_parse(NULL,
+ &bch2_opt_table[i],
+ strs.by_id[i], &v, &err);
+ if (ret < 0)
+ die("Invalid option %s", err.buf);
+
+ bch2_opt_set_by_id(&opts, i, v);
+ }
+
+ printbuf_exit(&err);
+ return opts;
+}
+
+#define newline(c) \
+ do { \
+ printf("\n"); \
+ c = 0; \
+ } while(0)
+void bch2_opts_usage(unsigned opt_types)
+{
+ const struct bch_option *opt;
+ unsigned i, c = 0, helpcol = 30;
+
+
+
+ for (opt = bch2_opt_table;
+ opt < bch2_opt_table + bch2_opts_nr;
+ opt++) {
+ if (!(opt->flags & opt_types))
+ continue;
+
+ c += printf(" --%s", opt->attr.name);
+
+ switch (opt->type) {
+ case BCH_OPT_BOOL:
+ break;
+ case BCH_OPT_STR:
+ c += printf("=(");
+ for (i = 0; opt->choices[i]; i++) {
+ if (i)
+ c += printf("|");
+ c += printf("%s", opt->choices[i]);
+ }
+ c += printf(")");
+ break;
+ default:
+ c += printf("=%s", opt->hint);
+ break;
+ }
+
+ if (opt->help) {
+ const char *l = opt->help;
+
+ if (c >= helpcol)
+ newline(c);
+
+ while (1) {
+ const char *n = strchrnul(l, '\n');
+
+ while (c < helpcol) {
+ putchar(' ');
+ c++;
+ }
+ printf("%.*s", (int) (n - l), l);
+ newline(c);
- memset(label, 0, sizeof(label));
- memcpy(label, sb->label, sizeof(sb->label));
- uuid_unparse(sb->user_uuid.b, user_uuid_str);
- uuid_unparse(sb->uuid.b, internal_uuid_str);
-
- printf("External UUID: %s\n"
- "Internal UUID: %s\n"
- "Label: %s\n"
- "Version: %llu\n"
- "Block_size: %s\n"
- "Btree node size: %s\n"
- "Error action: %s\n"
- "Clean: %llu\n"
-
- "Metadata replicas: have %llu, want %llu\n"
- "Data replicas: have %llu, want %llu\n"
-
- "Metadata checksum type: %s (%llu)\n"
- "Data checksum type: %s (%llu)\n"
- "Compression type: %s (%llu)\n"
-
- "String hash type: %s (%llu)\n"
- "32 bit inodes: %llu\n"
- "GC reserve percentage: %llu%%\n"
- "Root reserve percentage: %llu%%\n"
-
- "Devices: %u\n",
- user_uuid_str,
- internal_uuid_str,
- label,
- le64_to_cpu(sb->version),
- pr_units(le16_to_cpu(sb->block_size), units),
- pr_units(BCH_SB_BTREE_NODE_SIZE(sb), units),
-
- BCH_SB_ERROR_ACTION(sb) < BCH_NR_ERROR_ACTIONS
- ? bch2_error_actions[BCH_SB_ERROR_ACTION(sb)]
- : "unknown",
-
- BCH_SB_CLEAN(sb),
-
- 0LLU, //BCH_SB_META_REPLICAS_HAVE(sb),
- BCH_SB_META_REPLICAS_WANT(sb),
- 0LLU, //BCH_SB_DATA_REPLICAS_HAVE(sb),
- BCH_SB_DATA_REPLICAS_WANT(sb),
-
- BCH_SB_META_CSUM_TYPE(sb) < BCH_CSUM_OPT_NR
- ? bch2_csum_types[BCH_SB_META_CSUM_TYPE(sb)]
- : "unknown",
- BCH_SB_META_CSUM_TYPE(sb),
-
- BCH_SB_DATA_CSUM_TYPE(sb) < BCH_CSUM_OPT_NR
- ? bch2_csum_types[BCH_SB_DATA_CSUM_TYPE(sb)]
- : "unknown",
- BCH_SB_DATA_CSUM_TYPE(sb),
-
- BCH_SB_COMPRESSION_TYPE(sb) < BCH_COMPRESSION_OPT_NR
- ? bch2_compression_types[BCH_SB_COMPRESSION_TYPE(sb)]
- : "unknown",
- BCH_SB_COMPRESSION_TYPE(sb),
-
- BCH_SB_STR_HASH_TYPE(sb) < BCH_STR_HASH_NR
- ? bch2_str_hash_types[BCH_SB_STR_HASH_TYPE(sb)]
- : "unknown",
- BCH_SB_STR_HASH_TYPE(sb),
-
- BCH_SB_INODE_32BIT(sb),
- BCH_SB_GC_RESERVE(sb),
- BCH_SB_ROOT_RESERVE(sb),
-
- sb->nr_devices);
-
- mi = bch2_sb_get_members(sb);
- if (!mi) {
- printf("Member info section missing\n");
- return;
+ if (!*n)
+ break;
+ l = n + 1;
+ }
+ } else {
+ newline(c);
+ }
}
+}
+
+dev_names bchu_fs_get_devices(struct bchfs_handle fs)
+{
+ DIR *dir = fdopendir(fs.sysfs_fd);
+ struct dirent *d;
+ dev_names devs;
- for (i = 0; i < sb->nr_devices; i++) {
- struct bch_member *m = mi->members + i;
- time_t last_mount = le64_to_cpu(m->last_mount);
- char member_uuid_str[40];
- char data_allowed_str[100];
- char data_has_str[100];
-
- uuid_unparse(m->uuid.b, member_uuid_str);
- bch2_scnprint_flag_list(data_allowed_str,
- sizeof(data_allowed_str),
- bch2_data_types,
- BCH_MEMBER_DATA_ALLOWED(m));
- if (!data_allowed_str[0])
- strcpy(data_allowed_str, "(none)");
-
- bch2_scnprint_flag_list(data_has_str,
- sizeof(data_has_str),
- bch2_data_types,
- get_dev_has_data(sb, i));
- if (!data_has_str[0])
- strcpy(data_has_str, "(none)");
-
- printf("\n"
- "Device %u:\n"
- " UUID: %s\n"
- " Size: %s\n"
- " Bucket size: %s\n"
- " First bucket: %u\n"
- " Buckets: %llu\n"
- " Last mount: %s\n"
- " State: %s\n"
- " Tier: %llu\n"
- " Data allowed: %s\n"
-
- " Has data: %s\n"
-
- " Replacement policy: %s\n"
- " Discard: %llu\n",
- i, member_uuid_str,
- pr_units(le16_to_cpu(m->bucket_size) *
- le64_to_cpu(m->nbuckets), units),
- pr_units(le16_to_cpu(m->bucket_size), units),
- le16_to_cpu(m->first_bucket),
- le64_to_cpu(m->nbuckets),
- last_mount ? ctime(&last_mount) : "(never)",
-
- BCH_MEMBER_STATE(m) < BCH_MEMBER_STATE_NR
- ? bch2_dev_state[BCH_MEMBER_STATE(m)]
- : "unknown",
-
- BCH_MEMBER_TIER(m),
- data_allowed_str,
- data_has_str,
-
- BCH_MEMBER_REPLACEMENT(m) < CACHE_REPLACEMENT_NR
- ? bch2_cache_replacement_policies[BCH_MEMBER_REPLACEMENT(m)]
- : "unknown",
-
- BCH_MEMBER_DISCARD(m));
+ darray_init(&devs);
+
+ while ((errno = 0), (d = readdir(dir))) {
+ struct dev_name n = { 0, NULL, NULL };
+
+ if (sscanf(d->d_name, "dev-%u", &n.idx) != 1)
+ continue;
+
+ char *block_attr = mprintf("dev-%u/block", n.idx);
+
+ char sysfs_block_buf[4096];
+ ssize_t r = readlinkat(fs.sysfs_fd, block_attr,
+ sysfs_block_buf, sizeof(sysfs_block_buf));
+ if (r > 0) {
+ sysfs_block_buf[r] = '\0';
+ n.dev = strdup(basename(sysfs_block_buf));
+ }
+
+ free(block_attr);
+
+ char *label_attr = mprintf("dev-%u/label", n.idx);
+ n.label = read_file_str(fs.sysfs_fd, label_attr);
+ free(label_attr);
+
+ darray_push(&devs, n);
}
+
+ closedir(dir);
+
+ return devs;
}
projects / bcachefs-tools-debian / blobdiff