ReactOS 0.4.15-dev-5667-ged97270
Lwext4

Files

file  ext4_xattr.h
 Extended Attribute manipulation.
 

Classes

struct  ext4_xattr_header
 
struct  ext4_xattr_ibody_header
 
struct  ext4_xattr_entry
 
struct  ext4_xattr_item
 
struct  ext4_xattr_ref
 

Macros

#define EXT4_XATTR_MAGIC   0xEA020000
 
#define EXT4_XATTR_REFCOUNT_MAX   1024
 
#define EXT4_XATTR_INDEX_USER   1
 
#define EXT4_XATTR_INDEX_POSIX_ACL_ACCESS   2
 
#define EXT4_XATTR_INDEX_POSIX_ACL_DEFAULT   3
 
#define EXT4_XATTR_INDEX_TRUSTED   4
 
#define EXT4_XATTR_INDEX_LUSTRE   5
 
#define EXT4_XATTR_INDEX_SECURITY   6
 
#define EXT4_XATTR_INDEX_SYSTEM   7
 
#define EXT4_XATTR_INDEX_RICHACL   8
 
#define EXT4_XATTR_INDEX_ENCRYPTION   9
 
#define EXT4_GOOD_OLD_INODE_SIZE   EXT2_GOOD_OLD_INODE_SIZE
 
#define EXT4_XATTR_PAD_BITS   2
 
#define EXT4_XATTR_PAD   (1<<EXT4_XATTR_PAD_BITS)
 
#define EXT4_XATTR_ROUND   (EXT4_XATTR_PAD-1)
 
#define EXT4_XATTR_LEN(name_len)
 
#define EXT4_XATTR_NEXT(entry)
 
#define EXT4_XATTR_SIZE(size)    (((size) + EXT4_XATTR_ROUND) & ~EXT4_XATTR_ROUND)
 
#define EXT4_XATTR_NAME(entry)    ((char *)((entry) + 1))
 
#define EXT4_XATTR_IHDR(raw_inode)
 
#define EXT4_XATTR_IFIRST(hdr)    ((struct ext4_xattr_entry *)((hdr)+1))
 
#define EXT4_XATTR_BHDR(block)    ((struct ext4_xattr_header *)((block)->b_data))
 
#define EXT4_XATTR_ENTRY(ptr)    ((struct ext4_xattr_entry *)(ptr))
 
#define EXT4_XATTR_BFIRST(block)    EXT4_XATTR_ENTRY(EXT4_XATTR_BHDR(block)+1)
 
#define EXT4_XATTR_IS_LAST_ENTRY(entry)    (*(__le32 *)(entry) == 0)
 
#define EXT4_ZERO_XATTR_VALUE   ((void *)-1)
 
#define EXT4_XATTR_ITERATE_CONT   0
 
#define EXT4_XATTR_ITERATE_STOP   1
 
#define EXT4_XATTR_ITERATE_PAUSE   2
 

Functions

int ext4_fs_get_xattr_ref (PEXT2_IRP_CONTEXT IrpContext, PEXT2_VCB fs, PEXT2_MCB inode_ref, struct ext4_xattr_ref *ref)
 
int ext4_fs_put_xattr_ref (struct ext4_xattr_ref *ref)
 
int ext4_fs_set_xattr (struct ext4_xattr_ref *ref, __u8 name_index, const char *name, size_t name_len, const void *data, size_t data_size, BOOL replace)
 
int ext4_fs_set_xattr_ordered (struct ext4_xattr_ref *ref, __u8 name_index, const char *name, size_t name_len, const void *data, size_t data_size)
 
int ext4_fs_remove_xattr (struct ext4_xattr_ref *ref, __u8 name_index, const char *name, size_t name_len)
 
int ext4_fs_get_xattr (struct ext4_xattr_ref *ref, __u8 name_index, const char *name, size_t name_len, void *buf, size_t buf_size, size_t *data_size)
 
void ext4_fs_xattr_iterate (struct ext4_xattr_ref *ref, int(*iter)(struct ext4_xattr_ref *ref, struct ext4_xattr_item *item, BOOL is_last))
 
void ext4_fs_xattr_iterate_reset (struct ext4_xattr_ref *ref)
 
const charext4_extract_xattr_name (const char *full_name, size_t full_name_len, __u8 *name_index, size_t *name_len, BOOL *found)
 
const charext4_get_xattr_name_prefix (__u8 name_index, size_t *ret_prefix_len)
 
void ext4_xattr_purge_items (struct ext4_xattr_ref *xattr_ref)
 

Detailed Description

Macro Definition Documentation

◆ EXT4_GOOD_OLD_INODE_SIZE

#define EXT4_GOOD_OLD_INODE_SIZE   EXT2_GOOD_OLD_INODE_SIZE

Definition at line 89 of file ext4_xattr.h.

◆ EXT4_XATTR_BFIRST

#define EXT4_XATTR_BFIRST (   block)     EXT4_XATTR_ENTRY(EXT4_XATTR_BHDR(block)+1)

Definition at line 117 of file ext4_xattr.h.

◆ EXT4_XATTR_BHDR

#define EXT4_XATTR_BHDR (   block)     ((struct ext4_xattr_header *)((block)->b_data))

Definition at line 113 of file ext4_xattr.h.

◆ EXT4_XATTR_ENTRY

#define EXT4_XATTR_ENTRY (   ptr)     ((struct ext4_xattr_entry *)(ptr))

Definition at line 115 of file ext4_xattr.h.

◆ EXT4_XATTR_IFIRST

#define EXT4_XATTR_IFIRST (   hdr)     ((struct ext4_xattr_entry *)((hdr)+1))

Definition at line 110 of file ext4_xattr.h.

◆ EXT4_XATTR_IHDR

#define EXT4_XATTR_IHDR (   raw_inode)
Value:
((char *)raw_inode + \
(raw_inode)->i_extra_isize))
#define EXT4_GOOD_OLD_INODE_SIZE
Definition: ext4_xattr.h:89

Definition at line 105 of file ext4_xattr.h.

◆ EXT4_XATTR_INDEX_ENCRYPTION

#define EXT4_XATTR_INDEX_ENCRYPTION   9

Definition at line 60 of file ext4_xattr.h.

◆ EXT4_XATTR_INDEX_LUSTRE

#define EXT4_XATTR_INDEX_LUSTRE   5

Definition at line 56 of file ext4_xattr.h.

◆ EXT4_XATTR_INDEX_POSIX_ACL_ACCESS

#define EXT4_XATTR_INDEX_POSIX_ACL_ACCESS   2

Definition at line 53 of file ext4_xattr.h.

◆ EXT4_XATTR_INDEX_POSIX_ACL_DEFAULT

#define EXT4_XATTR_INDEX_POSIX_ACL_DEFAULT   3

Definition at line 54 of file ext4_xattr.h.

◆ EXT4_XATTR_INDEX_RICHACL

#define EXT4_XATTR_INDEX_RICHACL   8

Definition at line 59 of file ext4_xattr.h.

◆ EXT4_XATTR_INDEX_SECURITY

#define EXT4_XATTR_INDEX_SECURITY   6

Definition at line 57 of file ext4_xattr.h.

◆ EXT4_XATTR_INDEX_SYSTEM

#define EXT4_XATTR_INDEX_SYSTEM   7

Definition at line 58 of file ext4_xattr.h.

◆ EXT4_XATTR_INDEX_TRUSTED

#define EXT4_XATTR_INDEX_TRUSTED   4

Definition at line 55 of file ext4_xattr.h.

◆ EXT4_XATTR_INDEX_USER

#define EXT4_XATTR_INDEX_USER   1

Definition at line 52 of file ext4_xattr.h.

◆ EXT4_XATTR_IS_LAST_ENTRY

#define EXT4_XATTR_IS_LAST_ENTRY (   entry)     (*(__le32 *)(entry) == 0)

Definition at line 119 of file ext4_xattr.h.

◆ EXT4_XATTR_ITERATE_CONT

#define EXT4_XATTR_ITERATE_CONT   0

Definition at line 162 of file ext4_xattr.h.

◆ EXT4_XATTR_ITERATE_PAUSE

#define EXT4_XATTR_ITERATE_PAUSE   2

Definition at line 164 of file ext4_xattr.h.

◆ EXT4_XATTR_ITERATE_STOP

#define EXT4_XATTR_ITERATE_STOP   1

Definition at line 163 of file ext4_xattr.h.

◆ EXT4_XATTR_LEN

#define EXT4_XATTR_LEN (   name_len)
Value:
(((name_len) + EXT4_XATTR_ROUND + \
sizeof(struct ext4_xattr_entry)) & ~EXT4_XATTR_ROUND)
#define EXT4_XATTR_ROUND
Definition: ext4_xattr.h:93
Definition: ext4_xattr.h:78

Definition at line 94 of file ext4_xattr.h.

◆ EXT4_XATTR_MAGIC

#define EXT4_XATTR_MAGIC   0xEA020000

Definition at line 46 of file ext4_xattr.h.

◆ EXT4_XATTR_NAME

#define EXT4_XATTR_NAME (   entry)     ((char *)((entry) + 1))

Definition at line 102 of file ext4_xattr.h.

◆ EXT4_XATTR_NEXT

#define EXT4_XATTR_NEXT (   entry)
Value:
((struct ext4_xattr_entry *)( \
(char *)(entry) + EXT4_XATTR_LEN((entry)->e_name_len)))
#define EXT4_XATTR_LEN(name_len)
Definition: ext4_xattr.h:94
uint32_t entry
Definition: isohybrid.c:63

Definition at line 97 of file ext4_xattr.h.

◆ EXT4_XATTR_PAD

#define EXT4_XATTR_PAD   (1<<EXT4_XATTR_PAD_BITS)

Definition at line 92 of file ext4_xattr.h.

◆ EXT4_XATTR_PAD_BITS

#define EXT4_XATTR_PAD_BITS   2

Definition at line 91 of file ext4_xattr.h.

◆ EXT4_XATTR_REFCOUNT_MAX

#define EXT4_XATTR_REFCOUNT_MAX   1024

Definition at line 49 of file ext4_xattr.h.

◆ EXT4_XATTR_ROUND

#define EXT4_XATTR_ROUND   (EXT4_XATTR_PAD-1)

Definition at line 93 of file ext4_xattr.h.

◆ EXT4_XATTR_SIZE

#define EXT4_XATTR_SIZE (   size)     (((size) + EXT4_XATTR_ROUND) & ~EXT4_XATTR_ROUND)

Definition at line 100 of file ext4_xattr.h.

◆ EXT4_ZERO_XATTR_VALUE

#define EXT4_ZERO_XATTR_VALUE   ((void *)-1)

Definition at line 122 of file ext4_xattr.h.

Function Documentation

◆ ext4_extract_xattr_name()

const char * ext4_extract_xattr_name ( const char full_name,
size_t  full_name_len,
__u8 name_index,
size_t name_len,
BOOL found 
)

Definition at line 1234 of file ext4_xattr.c.

1237{
1238 int i;
1239 ASSERT(name_index);
1240 ASSERT(found);
1241
1242 *found = FALSE;
1243
1244 if (!full_name_len) {
1245 if (name_len)
1246 *name_len = 0;
1247
1248 return NULL;
1249 }
1250
1251 for (i = 0; prefix_tbl[i].prefix; i++) {
1252 size_t prefix_len = strlen(prefix_tbl[i].prefix);
1253 if (full_name_len >= prefix_len &&
1254 !memcmp(full_name, prefix_tbl[i].prefix, prefix_len)) {
1255 BOOL require_name =
1256 prefix_tbl[i].prefix[prefix_len - 1] == '.';
1257 *name_index = prefix_tbl[i].name_index;
1258 if (name_len)
1259 *name_len = full_name_len - prefix_len;
1260
1261 if (!(full_name_len - prefix_len) && require_name)
1262 return NULL;
1263
1264 *found = TRUE;
1265 if (require_name)
1266 return full_name + prefix_len;
1267
1268 return NULL;
1269 }
1270 }
1271 if (name_len)
1272 *name_len = 0;
1273
1274 return NULL;
1275}
int memcmp(void *Buffer1, void *Buffer2, ACPI_SIZE Count)
Definition: utclib.c:112
ACPI_SIZE strlen(const char *String)
Definition: utclib.c:269
#define NULL
Definition: types.h:112
#define TRUE
Definition: types.h:120
#define FALSE
Definition: types.h:117
static const struct xattr_prefix prefix_tbl[]
Definition: ext4_xattr.c:1223
unsigned int BOOL
Definition: ntddk_ex.h:94
GLsizei GLenum const GLvoid GLsizei GLenum GLbyte GLbyte GLbyte GLdouble GLdouble GLdouble GLfloat GLfloat GLfloat GLint GLint GLint GLshort GLshort GLshort GLubyte GLubyte GLubyte GLuint GLuint GLuint GLushort GLushort GLushort GLbyte GLbyte GLbyte GLbyte GLdouble GLdouble GLdouble GLdouble GLfloat GLfloat GLfloat GLfloat GLint GLint GLint GLint GLshort GLshort GLshort GLshort GLubyte GLubyte GLubyte GLubyte GLuint GLuint GLuint GLuint GLushort GLushort GLushort GLushort GLboolean const GLdouble const GLfloat const GLint const GLshort const GLbyte const GLdouble const GLfloat const GLint const GLshort const GLdouble const GLfloat const GLint const GLshort const GLdouble const GLfloat const GLint const GLshort const GLdouble const GLfloat const GLint const GLshort const GLdouble const GLdouble const GLfloat const GLfloat const GLint const GLint const GLshort const GLshort const GLdouble const GLfloat const GLint const GLshort const GLdouble const GLfloat const GLint const GLshort const GLdouble const GLfloat const GLint const GLshort const GLdouble const GLfloat const GLint const GLshort const GLdouble const GLfloat const GLint const GLshort const GLdouble const GLfloat const GLint const GLshort const GLdouble const GLfloat const GLint const GLshort GLenum GLenum GLenum GLfloat GLenum GLint GLenum GLenum GLenum GLfloat GLenum GLenum GLint GLenum GLfloat GLenum GLint GLint GLushort GLenum GLenum GLfloat GLenum GLenum GLint GLfloat const GLubyte GLenum GLenum GLenum const GLfloat GLenum GLenum const GLint GLenum GLint GLint GLsizei GLsizei GLint GLenum GLenum const GLvoid GLenum GLenum const GLfloat GLenum GLenum const GLint GLenum GLenum const GLdouble GLenum GLenum const GLfloat GLenum GLenum const GLint GLsizei GLuint GLfloat GLuint GLbitfield GLfloat GLint GLuint GLboolean GLenum GLfloat GLenum GLbitfield GLenum GLfloat GLfloat GLint GLint const GLfloat GLenum GLfloat GLfloat GLint GLint GLfloat GLfloat GLint GLint const GLfloat GLint GLfloat GLfloat GLint GLfloat GLfloat GLint GLfloat GLfloat const GLdouble const GLfloat const GLdouble const GLfloat GLint i
Definition: glfuncs.h:248
#define ASSERT(a)
Definition: mode.c:44

◆ ext4_fs_get_xattr()

int ext4_fs_get_xattr ( struct ext4_xattr_ref ref,
__u8  name_index,
const char name,
size_t  name_len,
void buf,
size_t  buf_size,
size_t data_size 
)

Definition at line 1078 of file ext4_xattr.c.

1081{
1082 int ret = 0;
1083 size_t item_size = 0;
1084 struct ext4_xattr_item *item =
1086
1087 if (!item) {
1088 ret = -ENODATA;
1089 goto Finish;
1090 }
1091 item_size = item->data_size;
1092 if (buf_size > item_size)
1093 buf_size = item_size;
1094
1095 if (buf)
1096 memcpy(buf, item->data, buf_size);
1097
1098Finish:
1099 if (data_size)
1100 *data_size = item_size;
1101
1102 return ret;
1103}
#define ENODATA
Definition: errno.h:65
static struct ext4_xattr_item * ext4_xattr_lookup_item(struct ext4_xattr_ref *xattr_ref, __u8 name_index, const char *name, size_t name_len)
Definition: ext4_xattr.c:467
GLenum GLuint GLenum GLsizei const GLchar * buf
Definition: glext.h:7751
#define memcpy(s1, s2, n)
Definition: mkisofs.h:878
static ATOM item
Definition: dde.c:856
size_t data_size
Definition: ext4_xattr.h:134
Definition: name.c:39
Definition: send.c:48
int ret

Referenced by Ext2QueryEa().

◆ ext4_fs_get_xattr_ref()

int ext4_fs_get_xattr_ref ( PEXT2_IRP_CONTEXT  IrpContext,
PEXT2_VCB  fs,
PEXT2_MCB  inode_ref,
struct ext4_xattr_ref ref 
)

Definition at line 1105 of file ext4_xattr.c.

1107{
1108 int rc;
1109 ext4_fsblk_t xattr_block;
1110 xattr_block = inode_ref->Inode.i_file_acl;
1111 memset(&ref->root, 0, sizeof(struct rb_root));
1112 ref->ea_size = 0;
1113 ref->iter_from = NULL;
1114 if (xattr_block) {
1115 ref->block_bh = extents_bread(&fs->sb, xattr_block);
1116 if (!ref->block_bh)
1117 return -EIO;
1118
1119 ref->block_loaded = TRUE;
1120 } else
1121 ref->block_loaded = FALSE;
1122
1123 ref->inode_ref = inode_ref;
1124 ref->fs = fs;
1125 INIT_LIST_HEAD(&ref->ordered_list);
1126
1127 ref->OnDiskInode = Ext2AllocateInode(fs);
1128 if (!ref->OnDiskInode) {
1129 if (xattr_block) {
1130 extents_brelse(ref->block_bh);
1131 ref->block_bh = NULL;
1132 }
1133 return -ENOMEM;
1134 }
1135 if (!Ext2LoadInodeXattr(fs, &inode_ref->Inode, ref->OnDiskInode)) {
1136 if (xattr_block) {
1137 extents_brelse(ref->block_bh);
1138 ref->block_bh = NULL;
1139 }
1140
1141 Ext2DestroyInode(fs, ref->OnDiskInode);
1142 return -EIO;
1143 }
1144 ref->IsOnDiskInodeDirty = FALSE;
1145
1147 sizeof(struct ext4_xattr_ibody_header) +
1148 sizeof(__u32))
1149 ref->inode_size_rem = 0;
1150 else {
1151 ref->inode_size_rem =
1153 sizeof(struct ext4_xattr_ibody_header);
1154 }
1155
1156 ref->block_size_rem =
1158 sizeof(struct ext4_xattr_header) -
1159 sizeof(__u32);
1160
1161 rc = ext4_xattr_fetch(ref);
1162 if (rc != 0) {
1164 if (xattr_block) {
1165 extents_brelse(ref->block_bh);
1166 ref->block_bh = NULL;
1167 }
1168
1169 Ext2DestroyInode(fs, ref->OnDiskInode);
1170 return rc;
1171 }
1172 ref->IrpContext = IrpContext;
1173 return 0;
1174}
#define ENOMEM
Definition: acclib.h:84
#define EIO
Definition: acclib.h:81
u32 __u32
Definition: btrfs.h:19
#define INIT_LIST_HEAD(ptr)
Definition: list.h:24
VOID Ext2DestroyInode(IN PEXT2_VCB Vcb, IN PEXT2_INODE inode)
Definition: memory.c:406
BOOLEAN Ext2LoadInodeXattr(IN PEXT2_VCB Vcb, IN struct inode *Inode, IN PEXT2_INODE InodeXattr)
Definition: generic.c:586
PEXT2_INODE Ext2AllocateInode(PEXT2_VCB Vcb)
Definition: memory.c:387
unsigned long long ext4_fsblk_t
Definition: ext3_fs_i.h:27
static int ext4_xattr_fetch(struct ext4_xattr_ref *xattr_ref)
Definition: ext4_xattr.c:449
static __s32 ext4_xattr_inode_space(struct ext4_xattr_ref *xattr_ref)
Definition: ext4_xattr.c:436
static __s32 ext4_xattr_block_space(struct ext4_xattr_ref *xattr_ref)
Definition: ext4_xattr.c:444
void ext4_xattr_purge_items(struct ext4_xattr_ref *xattr_ref)
Definition: ext4_xattr.c:736
#define fs
Definition: i386-dis.c:445
struct buffer_head * extents_bread(struct super_block *sb, sector_t block)
Definition: ext4_bh.c:15
void extents_brelse(struct buffer_head *bh)
Definition: ext4_bh.c:51
#define memset(x, y, z)
Definition: compat.h:39
struct inode Inode
Definition: ext2fs.h:936
Definition: ffs.h:70
ActualNumberDriverObjects * sizeof(PDRIVER_OBJECT)) PDRIVER_OBJECT *DriverObjectList

Referenced by Ext2OverwriteEa(), Ext2QueryEa(), Ext2QueryFileInformation(), and Ext2SetEa().

◆ ext4_fs_put_xattr_ref()

int ext4_fs_put_xattr_ref ( struct ext4_xattr_ref ref)

Definition at line 1176 of file ext4_xattr.c.

1177{
1178 int ret;
1179 sector_t orig_file_acl = ref->inode_ref->Inode.i_file_acl;
1181 if (ref->IsOnDiskInodeDirty) {
1182 ASSERT(ref->fs->InodeSize > EXT4_GOOD_OLD_INODE_SIZE);
1183
1184 /* As we may do block allocation in ext4_xattr_write_to_disk */
1185 if (ret)
1186 ref->inode_ref->Inode.i_file_acl = orig_file_acl;
1187
1188 if (!ret) {
1189 ret = Ext2SaveInode(ref->IrpContext, ref->fs, &ref->inode_ref->Inode)
1190 ? 0 : -EIO;
1191 if (!ret) {
1192 ret = Ext2SaveInodeXattr(ref->IrpContext,
1193 ref->fs,
1194 &ref->inode_ref->Inode,
1195 ref->OnDiskInode)
1196 ? 0 : -EIO;
1197 }
1198 }
1199 ref->IsOnDiskInodeDirty = FALSE;
1200 }
1201 if (ref->block_loaded) {
1202 if (!ret)
1203 extents_brelse(ref->block_bh);
1204 else
1205 extents_bforget(ref->block_bh);
1206
1207 ref->block_bh = NULL;
1208 ref->block_loaded = FALSE;
1209 }
1211 Ext2DestroyInode(ref->fs, ref->OnDiskInode);
1212 ref->OnDiskInode = NULL;
1213 ref->inode_ref = NULL;
1214 ref->fs = NULL;
1215 return ret;
1216}
unsigned __int64 sector_t
Definition: types.h:78
BOOLEAN Ext2SaveInodeXattr(IN PEXT2_IRP_CONTEXT IrpContext, IN PEXT2_VCB Vcb, IN struct inode *Inode, IN PEXT2_INODE InodeXattr)
Definition: generic.c:617
BOOLEAN Ext2SaveInode(IN PEXT2_IRP_CONTEXT IrpContext, IN PEXT2_VCB Vcb, IN struct inode *Inode)
Definition: generic.c:548
static int ext4_xattr_write_to_disk(struct ext4_xattr_ref *xattr_ref)
Definition: ext4_xattr.c:858
void extents_bforget(struct buffer_head *bh)
Definition: ext4_bh.c:64

Referenced by Ext2OverwriteEa(), Ext2QueryEa(), Ext2QueryFileInformation(), and Ext2SetEa().

◆ ext4_fs_remove_xattr()

int ext4_fs_remove_xattr ( struct ext4_xattr_ref ref,
__u8  name_index,
const char name,
size_t  name_len 
)

Definition at line 1072 of file ext4_xattr.c.

1074{
1075 return ext4_xattr_remove_item(ref, name_index, name, name_len);
1076}
static int ext4_xattr_remove_item(struct ext4_xattr_ref *xattr_ref, __u8 name_index, const char *name, size_t name_len)
Definition: ext4_xattr.c:605

◆ ext4_fs_set_xattr()

int ext4_fs_set_xattr ( struct ext4_xattr_ref ref,
__u8  name_index,
const char name,
size_t  name_len,
const void data,
size_t  data_size,
BOOL  replace 
)

Definition at line 1024 of file ext4_xattr.c.

1027{
1028 int ret = 0;
1029 struct ext4_xattr_item *item =
1031 if (replace) {
1032 if (!item) {
1033 ret = -ENODATA;
1034 goto Finish;
1035 }
1036 if (item->data_size != data_size)
1038
1039 if (ret != 0) {
1040 goto Finish;
1041 }
1042 memcpy(item->data, data, data_size);
1043 } else {
1044 if (item) {
1045 ret = -EEXIST;
1046 goto Finish;
1047 }
1049 data, data_size, &ret);
1050 }
1051Finish:
1052 return ret;
1053}
#define EEXIST
Definition: acclib.h:88
static struct ext4_xattr_item * ext4_xattr_insert_item(struct ext4_xattr_ref *xattr_ref, __u8 name_index, const char *name, size_t name_len, const void *data, size_t data_size, int *err)
Definition: ext4_xattr.c:486
static int ext4_xattr_resize_item(struct ext4_xattr_ref *xattr_ref, struct ext4_xattr_item *item, size_t new_data_size)
Definition: ext4_xattr.c:646
GLint GLenum GLsizei GLsizei GLsizei GLint GLsizei const GLvoid * data
Definition: gl.h:1950
INT replace(TCHAR source[MAX_PATH], TCHAR dest[MAX_PATH], DWORD dwFlags, BOOL *doMore)
Definition: replace.c:47

Referenced by Ext2OverwriteEa().

◆ ext4_fs_set_xattr_ordered()

int ext4_fs_set_xattr_ordered ( struct ext4_xattr_ref ref,
__u8  name_index,
const char name,
size_t  name_len,
const void data,
size_t  data_size 
)

Definition at line 1055 of file ext4_xattr.c.

1058{
1059 int ret = 0;
1060 struct ext4_xattr_item *item =
1062 if (item) {
1063 ret = -EEXIST;
1064 goto Finish;
1065 }
1067 data, data_size, &ret);
1068Finish:
1069 return ret;
1070}
static struct ext4_xattr_item * ext4_xattr_insert_item_ordered(struct ext4_xattr_ref *xattr_ref, __u8 name_index, const char *name, size_t name_len, const void *data, size_t data_size, int *err)
Definition: ext4_xattr.c:542

Referenced by Ext2SetEa().

◆ ext4_fs_xattr_iterate()

void ext4_fs_xattr_iterate ( struct ext4_xattr_ref ref,
int(*)(struct ext4_xattr_ref *ref, struct ext4_xattr_item *item, BOOL is_last)  iter 
)

Definition at line 978 of file ext4_xattr.c.

982{
983 struct ext4_xattr_item *item;
984 if (!ref->iter_from) {
985 struct list_head *first_node;
986 first_node = ref->ordered_list.next;
987 if (first_node && first_node != &ref->ordered_list) {
988 ref->iter_from =
989 list_entry(first_node,
990 struct ext4_xattr_item,
991 list_node);
992 }
993 }
994
995 item = ref->iter_from;
996 while (item) {
997 struct list_head *next_node;
998 struct ext4_xattr_item *next_item;
1000 next_node = item->list_node.next;
1001 if (next_node && next_node != &ref->ordered_list)
1002 next_item = list_entry(next_node, struct ext4_xattr_item,
1003 list_node);
1004 else
1005 next_item = NULL;
1006 if (iter)
1007 ret = iter(ref, item, !next_item);
1008
1011 ref->iter_from = NULL;
1012
1013 break;
1014 }
1015 item = next_item;
1016 }
1017}
BOOL next_node(stream_t *stream, strbuf_t *buf)
Definition: stream.c:140
#define list_entry(ptr, type, member)
Definition: list.h:185
#define EXT4_XATTR_ITERATE_STOP
Definition: ext4_xattr.h:163
#define EXT4_XATTR_ITERATE_CONT
Definition: ext4_xattr.h:162
struct list_head list_node
Definition: ext4_xattr.h:137
Definition: list.h:15

Referenced by Ext2QueryEa(), and Ext2QueryFileInformation().

◆ ext4_fs_xattr_iterate_reset()

void ext4_fs_xattr_iterate_reset ( struct ext4_xattr_ref ref)

Definition at line 1019 of file ext4_xattr.c.

1020{
1021 ref->iter_from = NULL;
1022}

◆ ext4_get_xattr_name_prefix()

const char * ext4_get_xattr_name_prefix ( __u8  name_index,
size_t ret_prefix_len 
)

Definition at line 1277 of file ext4_xattr.c.

1279{
1280 int i;
1281
1282 for (i = 0; prefix_tbl[i].prefix; i++) {
1283 size_t prefix_len = strlen(prefix_tbl[i].prefix);
1284 if (prefix_tbl[i].name_index == name_index) {
1285 if (ret_prefix_len)
1286 *ret_prefix_len = prefix_len;
1287
1288 return prefix_tbl[i].prefix;
1289 }
1290 }
1291 if (ret_prefix_len)
1292 *ret_prefix_len = 0;
1293
1294 return NULL;
1295}

◆ ext4_xattr_purge_items()

void ext4_xattr_purge_items ( struct ext4_xattr_ref xattr_ref)

Definition at line 736 of file ext4_xattr.c.

737{
738 struct rb_node *first_node;
739 struct ext4_xattr_item *item = NULL;
740 first_node = rb_first(&xattr_ref->root);
741 if (first_node)
742 item = container_of(first_node, struct ext4_xattr_item,
743 node);
744
745 while (item) {
746 struct rb_node *next_node;
747 struct ext4_xattr_item *next_item = NULL;
748 next_node = rb_next(&item->node);
749 if (next_node)
750 next_item = container_of(next_node, struct ext4_xattr_item,
751 node);
752 else
753 next_item = NULL;
754
755 ext4_xattr_item_remove(xattr_ref, item);
757
758 item = next_item;
759 }
760 xattr_ref->ea_size = 0;
761 if (ext4_xattr_inode_space(xattr_ref) <
762 sizeof(struct ext4_xattr_ibody_header))
763 xattr_ref->inode_size_rem = 0;
764 else
765 xattr_ref->inode_size_rem =
766 ext4_xattr_inode_space(xattr_ref) -
767 sizeof(struct ext4_xattr_ibody_header);
768
769 xattr_ref->block_size_rem =
770 ext4_xattr_block_space(xattr_ref) -
771 sizeof(struct ext4_xattr_header);
772}
struct rb_node * rb_first(struct rb_root *)
Definition: rbtree.c:294
struct rb_node * rb_next(struct rb_node *)
Definition: rbtree.c:320
static void ext4_xattr_item_free(struct ext4_xattr_item *item)
Definition: ext4_xattr.c:301
static void ext4_xattr_item_remove(struct ext4_xattr_ref *xattr_ref, struct ext4_xattr_item *item)
Definition: ext4_xattr.c:224
#define container_of(ptr, type, member)
Definition: glue.h:15
size_t block_size_rem
Definition: ext4_xattr.h:152
size_t ea_size
Definition: ext4_xattr.h:150
struct rb_root root
Definition: ext4_xattr.h:158
size_t inode_size_rem
Definition: ext4_xattr.h:151
Definition: rbtree.h:98
Definition: dlist.c:348

Referenced by Ext2OverwriteEa(), Ext2SetEa(), ext4_fs_get_xattr_ref(), and ext4_fs_put_xattr_ref().