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Diffstat (limited to 'src/mtd/jffs2-user.h')
-rw-r--r-- | src/mtd/jffs2-user.h | 82 |
1 files changed, 82 insertions, 0 deletions
diff --git a/src/mtd/jffs2-user.h b/src/mtd/jffs2-user.h new file mode 100644 index 0000000..bc5d99a --- /dev/null +++ b/src/mtd/jffs2-user.h @@ -0,0 +1,82 @@ +/* + * $Id: jffs2-user.h,v 1.1 2004/05/05 11:57:54 dwmw2 Exp $ + * + * JFFS2 definitions for use in user space only + */ + +#ifndef __JFFS2_USER_H__ +#define __JFFS2_USER_H__ + +/* This file is blessed for inclusion by userspace */ +#include <linux/jffs2.h> +#include <endian.h> +#include <byteswap.h> + +#undef cpu_to_je16 +#undef cpu_to_je32 +#undef cpu_to_jemode +#undef je16_to_cpu +#undef je32_to_cpu +#undef jemode_to_cpu + +extern int target_endian; + +#define t16(x) ({ uint16_t __b = (x); (target_endian==__BYTE_ORDER)?__b:bswap_16(__b); }) +#define t32(x) ({ uint32_t __b = (x); (target_endian==__BYTE_ORDER)?__b:bswap_32(__b); }) + +#define cpu_to_je16(x) ((jint16_t){t16(x)}) +#define cpu_to_je32(x) ((jint32_t){t32(x)}) +#define cpu_to_jemode(x) ((jmode_t){t32(x)}) + +#define je16_to_cpu(x) (t16((x).v16)) +#define je32_to_cpu(x) (t32((x).v32)) +#define jemode_to_cpu(x) (t32((x).m)) + +#define le16_to_cpu(x) (__BYTE_ORDER==__LITTLE_ENDIAN ? (x) : bswap_16(x)) +#define le32_to_cpu(x) (__BYTE_ORDER==__LITTLE_ENDIAN ? (x) : bswap_32(x)) +#define cpu_to_le16(x) (__BYTE_ORDER==__LITTLE_ENDIAN ? (x) : bswap_16(x)) +#define cpu_to_le32(x) (__BYTE_ORDER==__LITTLE_ENDIAN ? (x) : bswap_32(x)) + +/* XATTR/POSIX-ACL related definition */ +/* Namespaces copied from xattr.h and posix_acl_xattr.h */ +#define XATTR_USER_PREFIX "user." +#define XATTR_USER_PREFIX_LEN (sizeof (XATTR_USER_PREFIX) - 1) +#define XATTR_SECURITY_PREFIX "security." +#define XATTR_SECURITY_PREFIX_LEN (sizeof (XATTR_SECURITY_PREFIX) - 1) +#define POSIX_ACL_XATTR_ACCESS "system.posix_acl_access" +#define POSIX_ACL_XATTR_ACCESS_LEN (sizeof (POSIX_ACL_XATTR_ACCESS) - 1) +#define POSIX_ACL_XATTR_DEFAULT "system.posix_acl_default" +#define POSIX_ACL_XATTR_DEFAULT_LEN (sizeof (POSIX_ACL_XATTR_DEFAULT) - 1) +#define XATTR_TRUSTED_PREFIX "trusted." +#define XATTR_TRUSTED_PREFIX_LEN (sizeof (XATTR_TRUSTED_PREFIX) - 1) + +struct jffs2_acl_entry { + jint16_t e_tag; + jint16_t e_perm; + jint32_t e_id; +}; + +struct jffs2_acl_entry_short { + jint16_t e_tag; + jint16_t e_perm; +}; + +struct jffs2_acl_header { + jint32_t a_version; +}; + +/* copied from include/linux/posix_acl_xattr.h */ +#define POSIX_ACL_XATTR_VERSION 0x0002 + +struct posix_acl_xattr_entry { + uint16_t e_tag; + uint16_t e_perm; + uint32_t e_id; +}; + +struct posix_acl_xattr_header { + uint32_t a_version; + struct posix_acl_xattr_entry a_entries[0]; +}; + +#endif /* __JFFS2_USER_H__ */ |