From: Vyacheslav Dubeyko <slava@xxxxxxxxxxx>
Subject: [PATCH 1/3] hfsplus: add all neccessary declarations for ACLs support
This patch adds declaration of all necessary structures that are necessary for ACLs support, special ACL-related flag for debug output and dprint_hexdump() macros.
Signed-off-by: Vyacheslav Dubeyko <slava@xxxxxxxxxxx>
---
fs/hfsplus/hfsplus_fs.h | 5 +++++
fs/hfsplus/hfsplus_raw.h | 26 ++++++++++++++++++++++++++
2 files changed, 31 insertions(+)
diff --git a/fs/hfsplus/hfsplus_fs.h b/fs/hfsplus/hfsplus_fs.h
index 05b11f3..b935c23 100644
--- a/fs/hfsplus/hfsplus_fs.h
+++ b/fs/hfsplus/hfsplus_fs.h
@@ -24,6 +24,7 @@
#define DBG_EXTENT 0x00000020
#define DBG_BITMAP 0x00000040
#define DBG_ATTR_MOD 0x00000080
+#define DBG_ACL_MOD 0x00000100
#if 0
#define DBG_MASK (DBG_EXTENT|DBG_INODE|DBG_BNODE_MOD)
@@ -36,6 +37,10 @@
if (flg & DBG_MASK) \
printk(fmt , ## args)
+#define dprint_hexdump(flg, prefix, ptr, size) \
+ if (flg & DBG_MASK) \
+ print_hex_dump_bytes(prefix, DUMP_PREFIX_NONE, ptr, size)
+
/* Runtime config options */
#define HFSPLUS_DEF_CR_TYPE 0x3F3F3F3F /* '????' */
diff --git a/fs/hfsplus/hfsplus_raw.h b/fs/hfsplus/hfsplus_raw.h
index 452ede0..758b7ad 100644
--- a/fs/hfsplus/hfsplus_raw.h
+++ b/fs/hfsplus/hfsplus_raw.h
@@ -382,6 +382,32 @@ struct hfsplus_attr_inline_data {
u8 raw_bytes[HFSPLUS_MAX_INLINE_DATA_SIZE];
} __packed;
+#define HFSPLUS_GUID_SIZE 16 /* 128-bit */
+
+/* Access Control List Entry (ACE) */
+struct hfsplus_acl_entry {
+ u8 ace_applicable[HFSPLUS_GUID_SIZE]; /* Apple-style identifier */
+ __be32 ace_flags;
+ __be32 ace_rights;
+} __packed;
+
+/* Access Control List */
+struct hfsplus_acl_record {
+ __be32 acl_entrycount;
+ __be32 acl_flags;
+ struct hfsplus_acl_entry acl_ace[0];
+} __packed;
+
+#define HFSPLUS_FILESEC_MAGIC 0x012cc16d
+
+/* HFS+ File Security information */
+struct hfsplus_filesec {
+ __be32 fsec_magic;
+ u8 fsec_owner[HFSPLUS_GUID_SIZE];
+ u8 fsec_group[HFSPLUS_GUID_SIZE];
+ struct hfsplus_acl_record fsec_acl;
+} __packed;
+
/* A data record in the attributes tree */
typedef union {
__be32 record_type;
--
1.7.9.5
--
To unsubscribe from this list: send the line "unsubscribe linux-fsdevel" in
the body of a message to majordomo@xxxxxxxxxxxxxxx
More majordomo info at http://vger.kernel.org/majordomo-info.html
