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Message-ID: <20180405182413.3fabffd7@vp-pc>
Date: Thu, 5 Apr 2018 18:24:13 +0300
From: Viktor Prutyanov <viktor.prutyanov@...tuozzo.com>
To: linux-ext4@...r.kernel.org
Cc: Theodore Ts'o <tytso@....edu>,
Dmitry Monakhov <dmonakhov@...nvz.org>
Subject: Re: [PATCH v3 3/5] dumpe2fs: add JSON output of superblock
On Tue, 20 Feb 2018 12:59:48 +0300
Viktor Prutyanov <viktor.prutyanov@...tuozzo.com> wrote:
ping
> This patch adds JSON output of superblock information
>
> Signed-off-by: Viktor Prutyanov <viktor.prutyanov@...tuozzo.com>
> ---
> debugfs/Makefile.in | 4 +-
> lib/e2p/e2p.h | 6 +
> lib/e2p/ls.c | 362
> ++++++++++++++++++++++++++++++++++++++++++++++++++++
> lib/e2p/pe.c | 18 +++ lib/e2p/ps.c | 10 ++
> misc/Makefile.in | 8 +-
> misc/dumpe2fs.c | 5 +-
> 7 files changed, 406 insertions(+), 7 deletions(-)
>
> diff --git a/debugfs/Makefile.in b/debugfs/Makefile.in
> index 57940cde..92a3552a 100644
> --- a/debugfs/Makefile.in
> +++ b/debugfs/Makefile.in
> @@ -34,9 +34,9 @@ SRCS= debug_cmds.c $(srcdir)/debugfs.c
> $(srcdir)/util.c $(srcdir)/ls.c \ $(srcdir)/journal.c
> $(srcdir)/../e2fsck/revoke.c \ $(srcdir)/../e2fsck/recovery.c
> $(srcdir)/do_journal.c
> -LIBS= $(LIBSUPPORT) $(LIBEXT2FS) $(LIBE2P) $(LIBSS) $(LIBCOM_ERR)
> $(LIBBLKID) \ +LIBS= $(LIBEXT2FS) $(LIBE2P) $(LIBSUPPORT) $(LIBSS)
> $(LIBCOM_ERR) $(LIBBLKID) \ $(LIBUUID) $(LIBMAGIC) $(SYSLIBS)
> -DEPLIBS= $(DEPLIBSUPPORT) $(LIBEXT2FS) $(LIBE2P) $(DEPLIBSS)
> $(DEPLIBCOM_ERR) \ +DEPLIBS= $(LIBEXT2FS) $(LIBE2P) $(LIBSUPPORT)
> $(DEPLIBSS) $(DEPLIBCOM_ERR) \ $(DEPLIBBLKID) $(DEPLIBUUID)
>
> STATIC_LIBS= $(STATIC_LIBSUPPORT) $(STATIC_LIBEXT2FS)
> $(STATIC_LIBSS) \ diff --git a/lib/e2p/e2p.h b/lib/e2p/e2p.h
> index e96cdec8..88c08d73 100644
> --- a/lib/e2p/e2p.h
> +++ b/lib/e2p/e2p.h
> @@ -13,6 +13,8 @@
>
> #include <ext2fs/ext2_fs.h>
>
> +#include "support/json-out.h"
> +
> #define E2P_FEATURE_COMPAT 0
> #define E2P_FEATURE_INCOMPAT 1
> #define E2P_FEATURE_RO_INCOMPAT 2
> @@ -42,8 +44,10 @@ int iterate_on_dir (const char * dir_name,
> void list_super(struct ext2_super_block * s);
> void list_super2(struct ext2_super_block * s, FILE *f);
> void print_fs_errors (FILE * f, unsigned short errors);
> +void snprint_fs_errors (char *str, size_t size, unsigned short
> errors); void print_flags (FILE * f, unsigned long flags, unsigned
> options); void print_fs_state (FILE * f, unsigned short state);
> +void snprint_fs_state (char *str, size_t size, unsigned short state);
> int setflags (int fd, unsigned long flags);
> int setversion (int fd, unsigned long version);
>
> @@ -77,3 +81,5 @@ char *e2p_os2string(int os_type);
> int e2p_string2os(char *str);
>
> unsigned int e2p_percent(int percent, unsigned int base);
> +
> +void fill_json_super(struct json_obj *obj, struct ext2_super_block *
> s); diff --git a/lib/e2p/ls.c b/lib/e2p/ls.c
> index a7586e09..b690960b 100644
> --- a/lib/e2p/ls.c
> +++ b/lib/e2p/ls.c
> @@ -37,6 +37,15 @@ static void print_user (unsigned short uid, FILE
> *f) fprintf(f, "(user %s)\n", pw->pw_name);
> }
>
> +static void fill_json_user(struct json_obj *obj, unsigned short uid)
> +{
> + struct passwd *pw = getpwuid(uid);
> +
> + json_obj_add_fmt_str(obj, "uid", 32, "%u", uid);
> + if (pw)
> + json_obj_add_str(obj, "user", pw->pw_name);
> +}
> +
> static void print_group (unsigned short gid, FILE *f)
> {
> struct group *gr;
> @@ -49,6 +58,15 @@ static void print_group (unsigned short gid, FILE
> *f) fprintf(f, "(group %s)\n", gr->gr_name);
> }
>
> +static void fill_json_group(struct json_obj *obj, unsigned short gid)
> +{
> + struct group *gr = getgrgid(gid);
> +
> + json_obj_add_fmt_str(obj, "gid", 32, "%u", gid);
> + if (gr)
> + json_obj_add_str(obj, "group", gr->gr_name);
> +}
> +
> #define MONTH_INT (86400 * 30)
> #define WEEK_INT (86400 * 7)
> #define DAY_INT (86400)
> @@ -117,6 +135,24 @@ static void print_features(struct
> ext2_super_block * s, FILE *f) #endif
> }
>
> +static void fill_json_features(struct json_obj *obj,
> + struct
> ext2_super_block *s) +{
> +#ifdef EXT2_DYNAMIC_REV
> + int i, j;
> + __u32 *mask = &s->s_feature_compat, m;
> + struct json_list *list = json_list_create_in_obj(obj,
> + "filesystem-features",
> JSON_VAL_STRING); +
> + for (i=0; i <3; i++,mask++) {
> + for (j=0,m=1; j < 32; j++, m<<=1) {
> + if (*mask & m)
> + json_list_add_str(list,
> e2p_feature2string(i, m));
> + }
> + }
> +#endif
> +}
> +
> static void print_mntopts(struct ext2_super_block * s, FILE *f)
> {
> #ifdef EXT2_DYNAMIC_REV
> @@ -142,6 +178,26 @@ static void print_mntopts(struct
> ext2_super_block * s, FILE *f) #endif
> }
>
> +static void fill_json_mntopts(struct json_obj *obj,
> + struct
> ext2_super_block *s) +{
> +#ifdef EXT2_DYNAMIC_REV
> + int i;
> + __u32 mask = s->s_default_mount_opts, m;
> + struct json_list *list = json_list_create_in_obj(obj,
> + "default-mount-options",
> JSON_VAL_STRING); +
> + if (mask & EXT3_DEFM_JMODE)
> + json_list_add_str(list, e2p_mntopt2string(mask &
> EXT3_DEFM_JMODE));
> + for (i=0,m=1; i < 32; i++, m<<=1) {
> + if (m & EXT3_DEFM_JMODE)
> + continue;
> + if (mask & m)
> + json_list_add_str(list,
> e2p_mntopt2string(m));
> + }
> +#endif
> +}
> +
> static void print_super_flags(struct ext2_super_block * s, FILE *f)
> {
> int flags_found = 0;
> @@ -168,6 +224,25 @@ static void print_super_flags(struct
> ext2_super_block * s, FILE *f) fputs("(none)\n", f);
> }
>
> +static void fill_json_super_flags(struct json_obj *obj,
> +
> struct ext2_super_block *s) +{
> + int flags_found = 0;
> + struct json_list *list = json_list_create_in_obj(obj,
> + "filesystem-flags",
> JSON_VAL_STRING); +
> + if (s->s_flags == 0)
> + return;
> +
> + if (s->s_flags & EXT2_FLAGS_SIGNED_HASH)
> + json_list_add_str(list, "signed_directory_hash");
> + if (s->s_flags & EXT2_FLAGS_UNSIGNED_HASH)
> + json_list_add_str(list, "unsigned_directory_hash");
> + if (s->s_flags & EXT2_FLAGS_TEST_FILESYS)
> + json_list_add_str(list, "test_filesystem");
> +}
> +
> +
> static __u64 e2p_blocks_count(struct ext2_super_block *super)
> {
> return super->s_blocks_count |
> @@ -213,6 +288,12 @@ static const char *quota_prefix[MAXQUOTAS] = {
> [PRJQUOTA] = "Project quota inode:",
> };
>
> +static const char *json_quota_prefix[MAXQUOTAS] = {
> + [USRQUOTA] = "user-quota-inode",
> + [GRPQUOTA] = "group-quota-inode",
> + [PRJQUOTA] = "project-quota-inode",
> +};
> +
> /**
> * Convert type of quota to written representation
> */
> @@ -477,3 +558,284 @@ void list_super (struct ext2_super_block * s)
> list_super2(s, stdout);
> }
>
> +static void fill_json_time(struct json_obj *obj, const char *key,
> char *buf,
> + time_t tm)
> +{
> + char *str;
> +
> + if (tm && (ctime_r(&tm, buf))) {
> + if (str = strchr(buf, '\n'))
> + *str = '\0';
> + json_obj_add_str(obj, key, buf);
> + }
> +}
> +
> +void fill_json_super(struct json_obj *obj, struct ext2_super_block *
> sb) +{
> + int inode_blocks_per_group;
> + char buf[80], *str;
> + time_t tm;
> + enum quota_type qtype;
> + struct json_obj *super_obj = json_obj_create_in_obj(obj,
> "super"); +
> + inode_blocks_per_group = (((sb->s_inodes_per_group *
> + EXT2_INODE_SIZE(sb)) +
> + EXT2_BLOCK_SIZE(sb) - 1) /
> + EXT2_BLOCK_SIZE(sb));
> + if (sb->s_volume_name[0]) {
> + memset(buf, 0, sizeof(buf));
> + strncpy(buf, sb->s_volume_name,
> sizeof(sb->s_volume_name));
> + } else
> + strcpy(buf, "<none>");
> + json_obj_add_str(super_obj, "fs-volume-name", buf);
> + if (sb->s_last_mounted[0]) {
> + memset(buf, 0, sizeof(buf));
> + strncpy(buf, sb->s_last_mounted,
> sizeof(sb->s_last_mounted));
> + } else
> + strcpy(buf, "<not available>");
> + json_obj_add_str(super_obj, "last-mounted-on", buf);
> + json_obj_add_str(super_obj, "fs-uuid",
> e2p_uuid2str(sb->s_uuid));
> + json_obj_add_fmt_buf_str(super_obj, "fs-magic-number", buf,
> sizeof(buf),
> + "0x%04X", sb->s_magic);
> + json_obj_add_fmt_buf_str(super_obj, "fs-revision-level",
> buf, sizeof(buf),
> + "%d", sb->s_rev_level);
> + fill_json_features(super_obj, sb);
> + fill_json_super_flags(super_obj, sb);
> + fill_json_mntopts(super_obj, sb);
> + if (sb->s_mount_opts[0])
> + json_obj_add_str(super_obj, "mount-options",
> sb->s_mount_opts);
> + snprint_fs_state(buf, sizeof(buf), sb->s_state);
> + json_obj_add_str(super_obj, "fs-state", buf);
> + snprint_fs_errors(buf, sizeof(buf), sb->s_errors);
> + json_obj_add_str(super_obj, "errors-behaviour", buf);
> + str = e2p_os2string(sb->s_creator_os);
> + json_obj_add_str(super_obj, "fs-os-type", str);
> + free(str);
> + json_obj_add_fmt_buf_str(super_obj, "inode-count", buf,
> sizeof(buf), "%u",
> + sb->s_inodes_count);
> + json_obj_add_fmt_buf_str(super_obj, "block-count", buf,
> sizeof(buf),
> + "%llu", e2p_blocks_count(sb));
> + json_obj_add_fmt_buf_str(super_obj, "reserved-block-count",
> buf,
> + sizeof(buf), "%llu", e2p_r_blocks_count(sb));
> + if (sb->s_overhead_blocks)
> + json_obj_add_fmt_buf_str(super_obj,
> "overhead-blocks", buf,
> + sizeof(buf), "%u", sb->s_overhead_blocks);
> + json_obj_add_fmt_buf_str(super_obj, "free-blocks", buf,
> sizeof(buf),
> + "%llu", e2p_free_blocks_count(sb));
> + json_obj_add_fmt_buf_str(super_obj, "free-inodes", buf,
> sizeof(buf), "%u",
> + sb->s_free_inodes_count);
> + json_obj_add_fmt_buf_str(super_obj, "first-block", buf,
> sizeof(buf), "%u",
> + sb->s_first_data_block);
> + json_obj_add_fmt_buf_str(super_obj, "block-size", buf,
> sizeof(buf), "%u",
> + EXT2_BLOCK_SIZE(sb));
> + if (ext2fs_has_feature_bigalloc(sb))
> + json_obj_add_fmt_buf_str(super_obj, "cluster-size",
> buf, sizeof(buf),
> + "%u", EXT2_CLUSTER_SIZE(sb));
> + else
> + json_obj_add_fmt_buf_str(super_obj, "fragment-size",
> buf, sizeof(buf),
> + "%u", EXT2_CLUSTER_SIZE(sb));
> +
> + if (ext2fs_has_feature_64bit(sb))
> + json_obj_add_fmt_buf_str(super_obj,
> "group-descriptor-size", buf,
> + sizeof(buf), "%u", sb->s_desc_size);
> + if (sb->s_reserved_gdt_blocks)
> + json_obj_add_fmt_buf_str(super_obj,
> "reserved-gdt-blocks", buf,
> + sizeof(buf), "%u",
> sb->s_reserved_gdt_blocks);
> + json_obj_add_fmt_buf_str(super_obj, "blocks-per-group", buf,
> sizeof(buf),
> + "%u", sb->s_blocks_per_group);
> + if (ext2fs_has_feature_bigalloc(sb))
> + json_obj_add_fmt_buf_str(super_obj,
> "clusters-per-group", buf,
> + sizeof(buf), "%u", sb->s_clusters_per_group);
> + else
> + json_obj_add_fmt_buf_str(super_obj,
> "fragments-per-group", buf,
> + sizeof(buf), "%u", sb->s_clusters_per_group);
> + json_obj_add_fmt_buf_str(super_obj, "inodes-per-group", buf,
> sizeof(buf),
> + "%u", sb->s_inodes_per_group);
> + json_obj_add_fmt_buf_str(super_obj,
> "inode-blocks-per-group", buf,
> + sizeof(buf), "%u", inode_blocks_per_group);
> + if (sb->s_raid_stride)
> + json_obj_add_fmt_buf_str(super_obj, "raid-stride",
> buf, sizeof(buf),
> + "%u", sb->s_raid_stride);
> + if (sb->s_raid_stripe_width)
> + json_obj_add_fmt_buf_str(super_obj,
> "raid-stripe-width", buf,
> + sizeof(buf), "%u", sb->s_raid_stripe_width);
> + if (sb->s_first_meta_bg)
> + json_obj_add_fmt_buf_str(super_obj,
> "first-meta-block-group", buf,
> + sizeof(buf), "%u", sb->s_first_meta_bg);
> + if (sb->s_log_groups_per_flex)
> + json_obj_add_fmt_buf_str(super_obj,
> "flex-block-group-size", buf,
> + sizeof(buf), "%u", 1 <<
> sb->s_log_groups_per_flex); +
> + json_obj_add_fmt_buf_str(super_obj, "inodes-per-group", buf,
> sizeof(buf),
> + "%u", sb->s_inodes_per_group);
> + json_obj_add_fmt_buf_str(super_obj,
> "inode-blocks-per-group", buf,
> + sizeof(buf), "%u", inode_blocks_per_group);
> + if (sb->s_raid_stride)
> + json_obj_add_fmt_buf_str(super_obj, "raid-stride",
> buf, sizeof(buf),
> + "%u", sb->s_raid_stride);
> + if (sb->s_raid_stripe_width)
> + json_obj_add_fmt_buf_str(super_obj,
> "raid-stripe-width", buf,
> + sizeof(buf), "%u", sb->s_raid_stripe_width);
> + if (sb->s_first_meta_bg)
> + json_obj_add_fmt_buf_str(super_obj,
> "first-meta-block-group", buf,
> + sizeof(buf), "%u", sb->s_first_meta_bg);
> + if (sb->s_log_groups_per_flex)
> + json_obj_add_fmt_buf_str(super_obj,
> "flex-block-group-size", buf,
> + sizeof(buf), "%u", 1 <<
> sb->s_log_groups_per_flex);
> + fill_json_time(super_obj, "filesystem-created", buf,
> sb->s_mkfs_time);
> + fill_json_time(super_obj, "last-mount-time", buf,
> sb->s_mtime);
> + fill_json_time(super_obj, "last-write-time", buf,
> sb->s_wtime);
> + json_obj_add_fmt_buf_str(super_obj, "mount-count", buf,
> sizeof(buf),
> + "%u", sb->s_mnt_count);
> + json_obj_add_fmt_buf_str(super_obj, "maximum-mount-count",
> buf,
> + sizeof(buf), "%d", sb->s_max_mnt_count);
> + fill_json_time(super_obj, "last-checked", buf,
> sb->s_lastcheck);
> + json_obj_add_fmt_buf_str(super_obj, "check-interval", buf,
> sizeof(buf),
> + "%u", sb->s_checkinterval);
> + json_obj_add_str(super_obj, "check-interval-str",
> + interval_string(sb->s_checkinterval));
> + if (sb->s_checkinterval)
> + {
> + time_t next = sb->s_lastcheck + sb->s_checkinterval;
> +
> + fill_json_time(super_obj, "next-check-after", buf,
> + sb->s_lastcheck + sb->s_checkinterval);
> + }
> +#define POW2(x) ((__u64) 1 << (x))
> + if (sb->s_kbytes_written) {
> + if (sb->s_kbytes_written < POW2(13))
> + json_obj_add_fmt_buf_str(super_obj,
> "lifetime-writes", buf,
> + sizeof(buf), "%llu kB",
> sb->s_kbytes_written);
> + else if (sb->s_kbytes_written < POW2(23))
> + json_obj_add_fmt_buf_str(super_obj,
> "lifetime-writes", buf,
> + sizeof(buf), "%llu MB",
> + (sb->s_kbytes_written + POW2(9)) >>
> 10);
> + else if (sb->s_kbytes_written < POW2(33))
> + json_obj_add_fmt_buf_str(super_obj,
> "lifetime-writes", buf,
> + sizeof(buf), "%llu GB",
> + (sb->s_kbytes_written + POW2(19)) >>
> 20);
> + else if (sb->s_kbytes_written < POW2(43))
> + json_obj_add_fmt_buf_str(super_obj,
> "lifetime-writes", buf,
> + sizeof(buf), "%llu TB",
> + (sb->s_kbytes_written + POW2(29)) >>
> 30);
> + else
> + json_obj_add_fmt_buf_str(super_obj,
> "lifetime-writes", buf,
> + sizeof(buf), "%llu PB",
> + (sb->s_kbytes_written + POW2(39)) >>
> 40);
> + }
> + fill_json_user(super_obj, sb->s_def_resuid);
> + fill_json_group(super_obj, sb->s_def_resgid);
> + if (sb->s_rev_level >= EXT2_DYNAMIC_REV) {
> + json_obj_add_fmt_buf_str(super_obj, "first-inode",
> buf, sizeof(buf),
> + "%d", sb->s_first_ino);
> + json_obj_add_fmt_buf_str(super_obj, "inode-size",
> buf, sizeof(buf),
> + "%d", sb->s_inode_size);
> + if (sb->s_min_extra_isize)
> + json_obj_add_fmt_buf_str(super_obj,
> "required-extra-isize", buf,
> + sizeof(buf), "%d",
> sb->s_min_extra_isize);
> + if (sb->s_want_extra_isize)
> + json_obj_add_fmt_buf_str(super_obj,
> "desired-extra-isize", buf,
> + sizeof(buf), "%d",
> sb->s_want_extra_isize);
> + }
> + if (!e2p_is_null_uuid(sb->s_journal_uuid))
> + json_obj_add_str(super_obj, "journal-uuid",
> + e2p_uuid2str(sb->s_journal_uuid));
> + if (sb->s_journal_inum)
> + json_obj_add_fmt_buf_str(super_obj, "journal-inode",
> buf,
> + sizeof(buf), "%u", sb->s_journal_inum);
> + if (sb->s_journal_dev)
> + json_obj_add_fmt_buf_str(super_obj,
> "journal-device", buf,
> + sizeof(buf), "0x%04x", sb->s_journal_dev);
> + if (sb->s_last_orphan)
> + json_obj_add_fmt_buf_str(super_obj,
> "first-orphan-inode", buf,
> + sizeof(buf), "%u", sb->s_last_orphan);
> + if (ext2fs_has_feature_dir_index(sb) ||
> + sb->s_def_hash_version)
> + json_obj_add_str(super_obj, "default-directory-hash",
> + e2p_hash2string(sb->s_def_hash_version));
> + if (!e2p_is_null_uuid(sb->s_hash_seed))
> + json_obj_add_str(super_obj, "directory-hash-seed",
> + e2p_uuid2str(sb->s_hash_seed));
> + if (sb->s_jnl_backup_type) {
> + switch (sb->s_jnl_backup_type) {
> + case 1:
> + json_obj_add_str(super_obj,
> "journal-backup", "inode blocks");
> + break;
> + default:
> + json_obj_add_fmt_buf_str(super_obj,
> "journal-backup", buf,
> + sizeof(buf), "type %u",
> sb->s_jnl_backup_type);
> + }
> + }
> + if (sb->s_backup_bgs[0])
> + json_obj_add_fmt_buf_str(super_obj,
> "backup-block-group-0", buf,
> + sizeof(buf), "%u", sb->s_backup_bgs[0]);
> + if (sb->s_backup_bgs[1])
> + json_obj_add_fmt_buf_str(super_obj,
> "backup-block-group-1", buf,
> + sizeof(buf), "%u", sb->s_backup_bgs[1]);
> + if (sb->s_snapshot_inum) {
> + json_obj_add_fmt_buf_str(super_obj,
> "snapshot-inode", buf, sizeof(buf),
> + "%u", sb->s_snapshot_inum);
> + json_obj_add_fmt_buf_str(super_obj, "snapshot-id",
> buf, sizeof(buf),
> + "%u", sb->s_snapshot_id);
> + json_obj_add_fmt_buf_str(super_obj,
> "snapshot-reserved-blocks", buf,
> + sizeof(buf), "%llu",
> sb->s_snapshot_r_blocks_count);
> + }
> + if (sb->s_snapshot_list)
> + json_obj_add_fmt_buf_str(super_obj,
> "snapshot-list-head", buf,
> + sizeof(buf), "%u", sb->s_snapshot_list);
> + if (sb->s_error_count)
> + json_obj_add_fmt_buf_str(super_obj,
> "fs-error-count", buf, sizeof(buf),
> + "%u", sb->s_error_count);
> + if (sb->s_first_error_time) {
> + fill_json_time(super_obj, "first-error-time", buf,
> + sb->s_first_error_time);
> + memset(buf, 0, sizeof(buf));
> + strncpy(buf, (char *)sb->s_first_error_func,
> + sizeof(sb->s_first_error_func));
> + json_obj_add_str(super_obj, "first-error-function",
> buf);
> + json_obj_add_fmt_buf_str(super_obj,
> "first-error-line-num", buf,
> + sizeof(buf), "%u", sb->s_first_error_line);
> + json_obj_add_fmt_buf_str(super_obj,
> "first-error-inode-num", buf,
> + sizeof(buf), "%u", sb->s_first_error_ino);
> + json_obj_add_fmt_buf_str(super_obj,
> "first-error-block-num", buf,
> + sizeof(buf), "%llu",
> sb->s_first_error_block);
> + }
> + if (sb->s_last_error_time) {
> + fill_json_time(super_obj, "last-error-time", buf,
> + sb->s_last_error_time);
> + memset(buf, 0, sizeof(buf));
> + strncpy(buf, (char *)sb->s_last_error_func,
> + sizeof(sb->s_last_error_func));
> + json_obj_add_str(super_obj, "last-error-function",
> buf);
> + json_obj_add_fmt_buf_str(super_obj,
> "last-error-line-num", buf,
> + sizeof(buf), "%u", sb->s_last_error_line);
> + json_obj_add_fmt_buf_str(super_obj,
> "last-error-inode-num", buf,
> + sizeof(buf), "%u", sb->s_last_error_ino);
> + json_obj_add_fmt_buf_str(super_obj,
> "last-error-block-num", buf,
> + sizeof(buf), "%llu", sb->s_last_error_block);
> + }
> + if (ext2fs_has_feature_mmp(sb)) {
> + json_obj_add_fmt_buf_str(super_obj,
> "mmp-block-number", buf,
> + sizeof(buf), "%llu", (long
> long)sb->s_mmp_block);
> + json_obj_add_fmt_buf_str(super_obj,
> "mmp-update-interval", buf,
> + sizeof(buf), "%u",
> sb->s_mmp_update_interval);
> + }
> + for (qtype = 0; qtype < MAXQUOTAS; qtype++) {
> + if (*quota_sb_inump(sb, qtype) != 0)
> + json_obj_add_fmt_buf_str(super_obj,
> json_quota_prefix[qtype], buf,
> + sizeof(buf), "%u",
> *quota_sb_inump(sb, qtype));
> + }
> + if (ext2fs_has_feature_metadata_csum(sb)) {
> + json_obj_add_str(super_obj, "checksum-type",
> + checksum_type(sb->s_checksum_type));
> + json_obj_add_fmt_buf_str(super_obj, "checksum", buf,
> sizeof(buf),
> + "0x%08x", sb->s_checksum);
> + }
> + if (!e2p_is_null_uuid(sb->s_encrypt_pw_salt))
> + json_obj_add_str(super_obj, "encryption-pw-salt",
> + e2p_uuid2str(sb->s_encrypt_pw_salt));
> +
> + if (ext2fs_has_feature_csum_seed(sb))
> + json_obj_add_fmt_buf_str(super_obj, "checksum-seed",
> buf, sizeof(buf),
> + "0x%08x", sb->s_checksum_seed);
> +}
> diff --git a/lib/e2p/pe.c b/lib/e2p/pe.c
> index 1f24545d..9426e743 100644
> --- a/lib/e2p/pe.c
> +++ b/lib/e2p/pe.c
> @@ -38,3 +38,21 @@ void print_fs_errors (FILE * f, unsigned short
> errors) fprintf (f, "Unknown (continue)");
> }
> }
> +
> +void snprint_fs_errors (char *buf, size_t size, unsigned short
> errors) +{
> + switch (errors)
> + {
> + case EXT2_ERRORS_CONTINUE:
> + snprintf (buf, size, "Continue");
> + break;
> + case EXT2_ERRORS_RO:
> + snprintf (buf, size, "Remount read-only");
> + break;
> + case EXT2_ERRORS_PANIC:
> + snprintf (buf, size, "Panic");
> + break;
> + default:
> + snprintf (buf, size, "Unknown");
> + }
> +}
> diff --git a/lib/e2p/ps.c b/lib/e2p/ps.c
> index 757f8a66..19eb6559 100644
> --- a/lib/e2p/ps.c
> +++ b/lib/e2p/ps.c
> @@ -30,3 +30,13 @@ void print_fs_state (FILE * f, unsigned short
> state) if (state & EXT2_ERROR_FS)
> fprintf (f, " with errors");
> }
> +
> +void snprint_fs_state (char *str, size_t size, unsigned short state)
> +{
> + if (state & EXT2_VALID_FS)
> + snprintf (str, size, "clean");
> + else
> + snprintf (str, size, "not clean");
> + if (state & EXT2_ERROR_FS)
> + snprintf (str, size, "with errors");
> +}
> diff --git a/misc/Makefile.in b/misc/Makefile.in
> index 6f631eb1..a863ef62 100644
> --- a/misc/Makefile.in
> +++ b/misc/Makefile.in
> @@ -170,15 +170,15 @@ e2initrd_helper: e2initrd_helper.o $(DEPLIBS)
> $(DEPLIBBLKID) $(LIBEXT2FS) tune2fs: $(TUNE2FS_OBJS) $(DEPLIBS)
> $(DEPLIBS_E2P) $(DEPLIBBLKID) \ $(DEPLIBUUID) $(LIBEXT2FS)
> $(E) " LD $@"
> - $(Q) $(CC) $(ALL_LDFLAGS) -o tune2fs $(TUNE2FS_OBJS) $(LIBS)
> \
> - $(LIBBLKID) $(LIBUUID) $(LIBEXT2FS) $(LIBS_E2P) \
> + $(Q) $(CC) $(ALL_LDFLAGS) -o tune2fs $(TUNE2FS_OBJS) \
> + $(LIBBLKID) $(LIBUUID) $(LIBEXT2FS) $(LIBS_E2P)
> $(LIBS) \ $(LIBINTL) $(SYSLIBS) $(LIBBLKID) $(LIBMAGIC)
>
> tune2fs.static: $(TUNE2FS_OBJS) $(STATIC_DEPLIBS) $(STATIC_LIBE2P)
> $(DEPSTATIC_LIBBLKID) $(E) " LD $@"
> $(Q) $(CC) $(LDFLAGS_STATIC) -o tune2fs.static
> $(TUNE2FS_OBJS) \
> - $(STATIC_LIBS) $(STATIC_LIBBLKID) $(STATIC_LIBUUID) \
> - $(STATIC_LIBE2P) $(LIBINTL) $(SYSLIBS) \
> + $(STATIC_LIBBLKID) $(STATIC_LIBUUID) \
> + $(STATIC_LIBE2P) $(STATIC_LIBS) $(LIBINTL)
> $(SYSLIBS) \ $(STATIC_LIBBLKID) $(LIBMAGIC)
>
> tune2fs.profiled: $(TUNE2FS_OBJS) $(PROFILED_DEPLIBS) \
> diff --git a/misc/dumpe2fs.c b/misc/dumpe2fs.c
> index 319c296b..93e4b2ff 100644
> --- a/misc/dumpe2fs.c
> +++ b/misc/dumpe2fs.c
> @@ -863,7 +863,10 @@ try_open_again:
> } else {
> if (grp_only)
> goto just_descriptors;
> - list_super (fs->super);
> + if (json)
> + fill_json_super(dump_obj, fs->super);
> + else
> + list_super (fs->super);
> if (ext2fs_has_feature_journal_dev(fs->super)) {
> print_journal_information(fs, dump_obj);
> if (json) {
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