| lists.openwall.net | lists / announce owl-users owl-dev john-users john-dev passwdqc-users yescrypt popa3d-users / oss-security kernel-hardening musl sabotage tlsify passwords / crypt-dev xvendor / Bugtraq Full-Disclosure linux-kernel linux-netdev linux-ext4 linux-hardening linux-cve-announce PHC | |
|
Open Source and information security mailing list archives
| ||
|
Message-Id: <200710170626.l9H6QQcx006600@imap1.linux-foundation.org>
Date: Tue, 16 Oct 2007 23:26:26 -0700
From: akpm@...ux-foundation.org
To: torvalds@...ux-foundation.org
Cc: akpm@...ux-foundation.org, mszeredi@...e.cz,
linux-ext4@...r.kernel.org
Subject: [patch 075/327] ext3: show all mount options
From: Miklos Szeredi <mszeredi@...e.cz>
Signed-off-by: Miklos Szeredi <mszeredi@...e.cz>
Cc: <linux-ext4@...r.kernel.org>
Signed-off-by: Andrew Morton <akpm@...ux-foundation.org>
---
fs/ext3/super.c | 70 +++++++++++++++++++++++++++++++++++
include/linux/ext3_fs_sb.h | 1
2 files changed, 71 insertions(+)
diff -puN fs/ext3/super.c~ext3-show-all-mount-options fs/ext3/super.c
--- a/fs/ext3/super.c~ext3-show-all-mount-options
+++ a/fs/ext3/super.c
@@ -545,9 +545,78 @@ static inline void ext3_show_quota_optio
#endif
}
+/*
+ * Show an option if
+ * - it's set to a non-default value OR
+ * - if the per-sb default is different from the global default
+ */
static int ext3_show_options(struct seq_file *seq, struct vfsmount *vfs)
{
struct super_block *sb = vfs->mnt_sb;
+ struct ext3_sb_info *sbi = EXT3_SB(sb);
+ struct ext3_super_block *es = sbi->s_es;
+ unsigned long def_mount_opts;
+
+ def_mount_opts = le32_to_cpu(es->s_default_mount_opts);
+
+ if (sbi->s_sb_block != 1)
+ seq_printf(seq, ",sb=%lu", sbi->s_sb_block);
+ if (test_opt(sb, MINIX_DF))
+ seq_puts(seq, ",minixdf");
+ if (test_opt(sb, GRPID))
+ seq_puts(seq, ",grpid");
+ if (!test_opt(sb, GRPID) && (def_mount_opts & EXT3_DEFM_BSDGROUPS))
+ seq_puts(seq, ",nogrpid");
+ if (sbi->s_resuid != EXT3_DEF_RESUID ||
+ le16_to_cpu(es->s_def_resuid) != EXT3_DEF_RESUID) {
+ seq_printf(seq, ",resuid=%u", sbi->s_resuid);
+ }
+ if (sbi->s_resgid != EXT3_DEF_RESGID ||
+ le16_to_cpu(es->s_def_resgid) != EXT3_DEF_RESGID) {
+ seq_printf(seq, ",resgid=%u", sbi->s_resgid);
+ }
+ if (test_opt(sb, ERRORS_CONT)) {
+ int def_errors = le16_to_cpu(es->s_errors);
+
+ if (def_errors == EXT3_ERRORS_PANIC ||
+ def_errors == EXT3_ERRORS_RO) {
+ seq_puts(seq, ",errors=continue");
+ }
+ }
+ if (test_opt(sb, ERRORS_RO))
+ seq_puts(seq, ",errors=remount-ro");
+ if (test_opt(sb, ERRORS_PANIC))
+ seq_puts(seq, ",errors=panic");
+ if (test_opt(sb, NO_UID32))
+ seq_puts(seq, ",nouid32");
+ if (test_opt(sb, DEBUG))
+ seq_puts(seq, ",debug");
+ if (test_opt(sb, OLDALLOC))
+ seq_puts(seq, ",oldalloc");
+#ifdef CONFIG_EXT3_FS_XATTR
+ if (test_opt(sb, XATTR_USER))
+ seq_puts(seq, ",user_xattr");
+ if (!test_opt(sb, XATTR_USER) &&
+ (def_mount_opts & EXT3_DEFM_XATTR_USER)) {
+ seq_puts(seq, ",nouser_xattr");
+ }
+#endif
+#ifdef CONFIG_EXT3_FS_POSIX_ACL
+ if (test_opt(sb, POSIX_ACL))
+ seq_puts(seq, ",acl");
+ if (!test_opt(sb, POSIX_ACL) && (def_mount_opts & EXT3_DEFM_ACL))
+ seq_puts(seq, ",noacl");
+#endif
+ if (!test_opt(sb, RESERVATION))
+ seq_puts(seq, ",noreservation");
+ if (sbi->s_commit_interval) {
+ seq_printf(seq, ",commit=%u",
+ (unsigned) (sbi->s_commit_interval / HZ));
+ }
+ if (test_opt(sb, BARRIER))
+ seq_puts(seq, ",barrier=1");
+ if (test_opt(sb, NOBH))
+ seq_puts(seq, ",nobh");
if (test_opt(sb, DATA_FLAGS) == EXT3_MOUNT_JOURNAL_DATA)
seq_puts(seq, ",data=journal");
@@ -1425,6 +1494,7 @@ static int ext3_fill_super (struct super
sbi->s_mount_opt = 0;
sbi->s_resuid = EXT3_DEF_RESUID;
sbi->s_resgid = EXT3_DEF_RESGID;
+ sbi->s_sb_block = sb_block;
unlock_kernel();
diff -puN include/linux/ext3_fs_sb.h~ext3-show-all-mount-options include/linux/ext3_fs_sb.h
--- a/include/linux/ext3_fs_sb.h~ext3-show-all-mount-options
+++ a/include/linux/ext3_fs_sb.h
@@ -44,6 +44,7 @@ struct ext3_sb_info {
struct ext3_super_block * s_es; /* Pointer to the super block in the buffer */
struct buffer_head ** s_group_desc;
unsigned long s_mount_opt;
+ ext3_fsblk_t s_sb_block;
uid_t s_resuid;
gid_t s_resgid;
unsigned short s_mount_state;
_
-
To unsubscribe from this list: send the line "unsubscribe linux-ext4" in
the body of a message to majordomo@...r.kernel.org
More majordomo info at http://vger.kernel.org/majordomo-info.html
Powered by blists - more mailing lists