/* * $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__ */