1 #ifndef __LINUX_UDF_SB_H 2 #define __LINUX_UDF_SB_H 3 4 /* Since UDF 2.01 is ISO 13346 based... */ 5 #define UDF_SUPER_MAGIC 0x15013346 6 7 #define UDF_MAX_READ_VERSION 0x0201 8 #define UDF_MAX_WRITE_VERSION 0x0201 9 10 #define UDF_FLAG_USE_EXTENDED_FE 0 11 #define UDF_VERS_USE_EXTENDED_FE 0x0200 12 #define UDF_FLAG_USE_STREAMS 1 13 #define UDF_VERS_USE_STREAMS 0x0200 14 #define UDF_FLAG_USE_SHORT_AD 2 15 #define UDF_FLAG_USE_AD_IN_ICB 3 16 #define UDF_FLAG_USE_FILE_CTIME_EA 4 17 #define UDF_FLAG_STRICT 5 18 #define UDF_FLAG_UNDELETE 6 19 #define UDF_FLAG_UNHIDE 7 20 #define UDF_FLAG_VARCONV 8 21 #define UDF_FLAG_NLS_MAP 9 22 #define UDF_FLAG_UTF8 10 23 24 #define UDF_PART_FLAG_UNALLOC_BITMAP 0x0001 25 #define UDF_PART_FLAG_UNALLOC_TABLE 0x0002 26 #define UDF_PART_FLAG_FREED_BITMAP 0x0004 27 #define UDF_PART_FLAG_FREED_TABLE 0x0008 28 #define UDF_PART_FLAG_READ_ONLY 0x0010 29 #define UDF_PART_FLAG_WRITE_ONCE 0x0020 30 #define UDF_PART_FLAG_REWRITABLE 0x0040 31 #define UDF_PART_FLAG_OVERWRITABLE 0x0080 32 33 #define UDF_SB_FREE(X)\ 34 {\ 35 if (UDF_SB(X))\ 36 {\ 37 if (UDF_SB_PARTMAPS(X))\ 38 kfree(UDF_SB_PARTMAPS(X));\ 39 UDF_SB_PARTMAPS(X) = NULL;\ 40 }\ 41 } 42 #define UDF_SB(X) (&((X)->u.udf_sb)) 43 44 #define UDF_SB_ALLOC_PARTMAPS(X,Y)\ 45 {\ 46 UDF_SB_PARTMAPS(X) = kmalloc(sizeof(struct udf_part_map) * Y, GFP_KERNEL);\ 47 if (UDF_SB_PARTMAPS(X) != NULL)\ 48 {\ 49 UDF_SB_NUMPARTS(X) = Y;\ 50 memset(UDF_SB_PARTMAPS(X), 0x00, sizeof(struct udf_part_map) * Y);\ 51 }\ 52 else\ 53 {\ 54 UDF_SB_NUMPARTS(X) = 0;\ 55 udf_error(X, __FUNCTION__, "Unable to allocate space for %d partition maps", Y);\ 56 }\ 57 } 58 59 #define UDF_SB_ALLOC_BITMAP(X,Y,Z)\ 60 {\ 61 int nr_groups = ((UDF_SB_PARTLEN((X),(Y)) + (sizeof(struct spaceBitmapDesc) << 3) +\ 62 ((X)->s_blocksize * 8) - 1) / ((X)->s_blocksize * 8));\ 63 UDF_SB_PARTMAPS(X)[(Y)].Z.s_bitmap = kmalloc(sizeof(struct udf_bitmap) +\ 64 sizeof(struct buffer_head *) * nr_groups,\ 65 GFP_KERNEL);\ 66 if (UDF_SB_PARTMAPS(X)[(Y)].Z.s_bitmap != NULL)\ 67 {\ 68 memset(UDF_SB_PARTMAPS(X)[(Y)].Z.s_bitmap, 0x00,\ 69 sizeof(struct udf_bitmap) + sizeof(struct buffer_head *) * nr_groups);\ 70 UDF_SB_PARTMAPS(X)[(Y)].Z.s_bitmap->s_block_bitmap =\ 71 (struct buffer_head **)(UDF_SB_PARTMAPS(X)[(Y)].Z.s_bitmap + 1);\ 72 UDF_SB_PARTMAPS(X)[(Y)].Z.s_bitmap->s_nr_groups = nr_groups;\ 73 }\ 74 else\ 75 {\ 76 udf_error(X, __FUNCTION__, "Unable to allocate space for bitmap and %d buffer_head pointers", nr_groups);\ 77 }\ 78 } 79 80 81 #define UDF_QUERY_FLAG(X,Y) ( UDF_SB(X)->s_flags & ( 1 << (Y) ) ) 82 #define UDF_SET_FLAG(X,Y) ( UDF_SB(X)->s_flags |= ( 1 << (Y) ) ) 83 #define UDF_CLEAR_FLAG(X,Y) ( UDF_SB(X)->s_flags &= ~( 1 << (Y) ) ) 84 85 #define UDF_UPDATE_UDFREV(X,Y) ( ((Y) > UDF_SB_UDFREV(X)) ? UDF_SB_UDFREV(X) = (Y) : UDF_SB_UDFREV(X) ) 86 87 #define UDF_SB_PARTMAPS(X) ( UDF_SB(X)->s_partmaps ) 88 #define UDF_SB_PARTTYPE(X,Y) ( UDF_SB_PARTMAPS(X)[(Y)].s_partition_type ) 89 #define UDF_SB_PARTROOT(X,Y) ( UDF_SB_PARTMAPS(X)[(Y)].s_partition_root ) 90 #define UDF_SB_PARTLEN(X,Y) ( UDF_SB_PARTMAPS(X)[(Y)].s_partition_len ) 91 #define UDF_SB_PARTVSN(X,Y) ( UDF_SB_PARTMAPS(X)[(Y)].s_volumeseqnum ) 92 #define UDF_SB_PARTNUM(X,Y) ( UDF_SB_PARTMAPS(X)[(Y)].s_partition_num ) 93 #define UDF_SB_TYPESPAR(X,Y) ( UDF_SB_PARTMAPS(X)[(Y)].s_type_specific.s_sparing ) 94 #define UDF_SB_TYPEVIRT(X,Y) ( UDF_SB_PARTMAPS(X)[(Y)].s_type_specific.s_virtual ) 95 #define UDF_SB_PARTFUNC(X,Y) ( UDF_SB_PARTMAPS(X)[(Y)].s_partition_func ) 96 #define UDF_SB_PARTFLAGS(X,Y) ( UDF_SB_PARTMAPS(X)[(Y)].s_partition_flags ) 97 #define UDF_SB_BITMAP(X,Y,Z,I) ( UDF_SB_PARTMAPS(X)[(Y)].Z.s_bitmap->s_block_bitmap[I] ) 98 #define UDF_SB_BITMAP_NR_GROUPS(X,Y,Z) ( UDF_SB_PARTMAPS(X)[(Y)].Z.s_bitmap->s_nr_groups ) 99 100 #define UDF_SB_VOLIDENT(X) ( UDF_SB(X)->s_volident ) 101 #define UDF_SB_NUMPARTS(X) ( UDF_SB(X)->s_partitions ) 102 #define UDF_SB_PARTITION(X) ( UDF_SB(X)->s_partition ) 103 #define UDF_SB_SESSION(X) ( UDF_SB(X)->s_session ) 104 #define UDF_SB_ANCHOR(X) ( UDF_SB(X)->s_anchor ) 105 #define UDF_SB_LASTBLOCK(X) ( UDF_SB(X)->s_lastblock ) 106 #define UDF_SB_LVIDBH(X) ( UDF_SB(X)->s_lvidbh ) 107 #define UDF_SB_LVID(X) ( (struct logicalVolIntegrityDesc *)UDF_SB_LVIDBH(X)->b_data ) 108 #define UDF_SB_LVIDIU(X) ( (struct logicalVolIntegrityDescImpUse *)&(UDF_SB_LVID(X)->impUse[le32_to_cpu(UDF_SB_LVID(X)->numOfPartitions) * 2 * sizeof(uint32_t)/sizeof(uint8_t)]) ) 109 110 #define UDF_SB_UMASK(X) ( UDF_SB(X)->s_umask ) 111 #define UDF_SB_GID(X) ( UDF_SB(X)->s_gid ) 112 #define UDF_SB_UID(X) ( UDF_SB(X)->s_uid ) 113 #define UDF_SB_RECORDTIME(X) ( UDF_SB(X)->s_recordtime ) 114 #define UDF_SB_SERIALNUM(X) ( UDF_SB(X)->s_serialnum ) 115 #define UDF_SB_UDFREV(X) ( UDF_SB(X)->s_udfrev ) 116 #define UDF_SB_FLAGS(X) ( UDF_SB(X)->s_flags ) 117 #define UDF_SB_VAT(X) ( UDF_SB(X)->s_vat ) 118 119 #endif /* __LINUX_UDF_SB_H */ 120