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authorRussell King <rmk+kernel@armlinux.org.uk>2019-12-09 11:09:56 +0000
committerAl Viro <viro@zeniv.linux.org.uk>2020-01-20 20:12:41 -0500
commitae5df41390eb1c40b9a5c220673d8c31a4cb57db (patch)
tree28bc9ed97e8bc725ecabadfdfa784f4ca6e4caf1 /fs/adfs
parentdeed1bfd150c7c71bcdc16419c90933096c1c75e (diff)
downloadlinux-ae5df41390eb1c40b9a5c220673d8c31a4cb57db.tar.bz2
fs/adfs: dir: modernise on-disk directory structures
Use __u8 and pack the structures for on-disk directories. Signed-off-by: Russell King <rmk+kernel@armlinux.org.uk> Signed-off-by: Al Viro <viro@zeniv.linux.org.uk>
Diffstat (limited to 'fs/adfs')
-rw-r--r--fs/adfs/dir_f.h52
-rw-r--r--fs/adfs/dir_fplus.h6
2 files changed, 31 insertions, 27 deletions
diff --git a/fs/adfs/dir_f.h b/fs/adfs/dir_f.h
index 5aec332b90f5..a5393e6cf9f4 100644
--- a/fs/adfs/dir_f.h
+++ b/fs/adfs/dir_f.h
@@ -13,9 +13,9 @@
* Directory header
*/
struct adfs_dirheader {
- unsigned char startmasseq;
- unsigned char startname[4];
-};
+ __u8 startmasseq;
+ __u8 startname[4];
+} __attribute__((packed));
#define ADFS_NEWDIR_SIZE 2048
#define ADFS_NUM_DIR_ENTRIES 77
@@ -31,32 +31,36 @@ struct adfs_direntry {
__u8 dirlen[4];
__u8 dirinddiscadd[3];
__u8 newdiratts;
-};
+} __attribute__((packed));
/*
* Directory tail
*/
+struct adfs_olddirtail {
+ __u8 dirlastmask;
+ char dirname[10];
+ __u8 dirparent[3];
+ char dirtitle[19];
+ __u8 reserved[14];
+ __u8 endmasseq;
+ __u8 endname[4];
+ __u8 dircheckbyte;
+} __attribute__((packed));
+
+struct adfs_newdirtail {
+ __u8 dirlastmask;
+ __u8 reserved[2];
+ __u8 dirparent[3];
+ char dirtitle[19];
+ char dirname[10];
+ __u8 endmasseq;
+ __u8 endname[4];
+ __u8 dircheckbyte;
+} __attribute__((packed));
+
union adfs_dirtail {
- struct {
- unsigned char dirlastmask;
- char dirname[10];
- unsigned char dirparent[3];
- char dirtitle[19];
- unsigned char reserved[14];
- unsigned char endmasseq;
- unsigned char endname[4];
- unsigned char dircheckbyte;
- } old;
- struct {
- unsigned char dirlastmask;
- unsigned char reserved[2];
- unsigned char dirparent[3];
- char dirtitle[19];
- char dirname[10];
- unsigned char endmasseq;
- unsigned char endname[4];
- unsigned char dircheckbyte;
- } new;
+ struct adfs_olddirtail old;
+ struct adfs_newdirtail new;
};
#endif
diff --git a/fs/adfs/dir_fplus.h b/fs/adfs/dir_fplus.h
index 4ec0931e36ad..d729b1591e5e 100644
--- a/fs/adfs/dir_fplus.h
+++ b/fs/adfs/dir_fplus.h
@@ -22,7 +22,7 @@ struct adfs_bigdirheader {
__le32 bigdirnamesize;
__le32 bigdirparent;
char bigdirname[1];
-};
+} __attribute__((packed, aligned(4)));
struct adfs_bigdirentry {
__le32 bigdirload;
@@ -32,11 +32,11 @@ struct adfs_bigdirentry {
__le32 bigdirattr;
__le32 bigdirobnamelen;
__le32 bigdirobnameptr;
-};
+} __attribute__((packed, aligned(4)));
struct adfs_bigdirtail {
__le32 bigdirendname;
__u8 bigdirendmasseq;
__u8 reserved[2];
__u8 bigdircheckbyte;
-};
+} __attribute__((packed, aligned(4)));