The metadata for a file or directory in ext2. More...

#include <ext2.h>

Public Attributes
union {

uint16_t type_permissions
	The type and permissions of the inode. More...

struct {

uint16_t permissions: 12
	The permissions of the inode. More...

uint16_t type: 4
	The type of the inode. More...

}

};

uint16_t	user_id
	The ID of the user who owns the inode.

uint32_t	size_lower
	The lower 32 bits of the size of the file in bytes.

uint32_t	last_access_time
	The seconds (since the epoch) of the last access time.

uint32_t	creation_time
	The seconds (since the epoch) of the time the inode was first allocated.

uint32_t	last_modification_time
	The seconds (since the epoch) of the last time the inode was written to.

uint32_t	deletion_time
	The seconds (since the epoch) of the time the inode was marked as not used.

uint16_t	group_id
	The ID of the group who owns the inode.

uint16_t	hard_links
	How many directory entries point to this inode.

uint32_t	sectors_used
	How many 512 byte sectors are used by this inode (not blocks) (not including this struct or directory entries linked to it)

uint32_t	flags
	Flags for the inode (see InodeFlags)

uint32_t	os_1
	OS specific value (0 for Linux/HURD, 'transaltor' for Masix)

uint32_t	block_pointers [12]
	Pointers to the blocks that store the file's data (0 marks unused)

uint32_t	l1_indirect
	Pointer to a block that contains more block pointers (see block_pointers)

uint32_t	l2_indirect
	Pointer to a block that contains more l1_indirect pointers.

uint32_t	l3_indirect
	Pointer to a block that contains more l2_indirect pointers.

uint32_t	generation
	File version (used by NFS)

uint32_t	extended_attribute
	File extended attribute block (Access Control List)

uint32_t	size_upper
	The upper 32 bits of the size of the file in bytes (for files larger than 4GB). If this is a directory, this is the Directory Access Control List.

uint32_t	os_2 [3]
	Second OS specific value (see InodeOS2Linux, ...)

Detailed Description

The metadata for a file or directory in ext2.

Definition at line 173 of file ext2.h.

Member Data Documentation

◆ block_pointers

uint32_t MaxOS::filesystem::format::ext2::Inode::block_pointers[12]

Pointers to the blocks that store the file's data (0 marks unused)

Definition at line 192 of file ext2.h.

◆ creation_time

uint32_t MaxOS::filesystem::format::ext2::Inode::creation_time

The seconds (since the epoch) of the time the inode was first allocated.

Definition at line 184 of file ext2.h.

◆ deletion_time

uint32_t MaxOS::filesystem::format::ext2::Inode::deletion_time

The seconds (since the epoch) of the time the inode was marked as not used.

Definition at line 186 of file ext2.h.

◆ extended_attribute

uint32_t MaxOS::filesystem::format::ext2::Inode::extended_attribute

File extended attribute block (Access Control List)

Definition at line 197 of file ext2.h.

◆ flags

uint32_t MaxOS::filesystem::format::ext2::Inode::flags

Flags for the inode (see InodeFlags)

Definition at line 190 of file ext2.h.

◆ generation

uint32_t MaxOS::filesystem::format::ext2::Inode::generation

File version (used by NFS)

Definition at line 196 of file ext2.h.

◆ group_id

uint16_t MaxOS::filesystem::format::ext2::Inode::group_id

The ID of the group who owns the inode.

Definition at line 187 of file ext2.h.

◆ hard_links

uint16_t MaxOS::filesystem::format::ext2::Inode::hard_links

How many directory entries point to this inode.

Definition at line 188 of file ext2.h.

◆ l1_indirect

uint32_t MaxOS::filesystem::format::ext2::Inode::l1_indirect

Pointer to a block that contains more block pointers (see block_pointers)

Definition at line 193 of file ext2.h.

◆ l2_indirect

uint32_t MaxOS::filesystem::format::ext2::Inode::l2_indirect

Pointer to a block that contains more l1_indirect pointers.

Definition at line 194 of file ext2.h.

◆ l3_indirect

uint32_t MaxOS::filesystem::format::ext2::Inode::l3_indirect

Pointer to a block that contains more l2_indirect pointers.

Definition at line 195 of file ext2.h.

◆ last_access_time

uint32_t MaxOS::filesystem::format::ext2::Inode::last_access_time

The seconds (since the epoch) of the last access time.

Definition at line 183 of file ext2.h.

◆ last_modification_time

uint32_t MaxOS::filesystem::format::ext2::Inode::last_modification_time

The seconds (since the epoch) of the last time the inode was written to.

Definition at line 185 of file ext2.h.

◆ os_1

uint32_t MaxOS::filesystem::format::ext2::Inode::os_1

OS specific value (0 for Linux/HURD, 'transaltor' for Masix)

Definition at line 191 of file ext2.h.

◆ os_2

uint32_t MaxOS::filesystem::format::ext2::Inode::os_2[3]

Second OS specific value (see InodeOS2Linux, ...)

Definition at line 199 of file ext2.h.

◆ permissions

uint16_t MaxOS::filesystem::format::ext2::Inode::permissions

The permissions of the inode.

Definition at line 177 of file ext2.h.

◆ sectors_used

uint32_t MaxOS::filesystem::format::ext2::Inode::sectors_used

How many 512 byte sectors are used by this inode (not blocks) (not including this struct or directory entries linked to it)

Definition at line 189 of file ext2.h.

◆ size_lower

uint32_t MaxOS::filesystem::format::ext2::Inode::size_lower

The lower 32 bits of the size of the file in bytes.

Definition at line 182 of file ext2.h.

◆ size_upper

uint32_t MaxOS::filesystem::format::ext2::Inode::size_upper

The upper 32 bits of the size of the file in bytes (for files larger than 4GB). If this is a directory, this is the Directory Access Control List.

Definition at line 198 of file ext2.h.

◆ type

uint16_t MaxOS::filesystem::format::ext2::Inode::type

The type of the inode.

Definition at line 178 of file ext2.h.

◆ type_permissions

uint16_t MaxOS::filesystem::format::ext2::Inode::type_permissions

The type and permissions of the inode.

Definition at line 175 of file ext2.h.

◆ user_id

uint16_t MaxOS::filesystem::format::ext2::Inode::user_id

The ID of the user who owns the inode.

Definition at line 181 of file ext2.h.

The documentation for this struct was generated from the following file:

/home/runner/work/MaxOS/MaxOS/kernel/include/filesystem/format/ext2.h

Public Attributes