include/uapi/linux/auto_dev-ioctl.h

Source file repositories/reference/linux-study-clean/include/uapi/linux/auto_dev-ioctl.h

File Facts

System
Linux kernel
Corpus path
include/uapi/linux/auto_dev-ioctl.h
Extension
.h
Size
4996 bytes
Lines
217
Domain
Core OS
Bucket
Core Kernel Interface
Inferred role
Core OS: implementation source
Status
source implementation candidate

Why This File Exists

Core operating-system implementation surface: boot, tasks, memory, VFS, syscall-facing interfaces, synchronization, credentials, and isolation.

Dependency Surface

Detected Declarations

Annotated Snippet

struct args_protover {
	__u32	version;
};

struct args_protosubver {
	__u32	sub_version;
};

struct args_openmount {
	__u32	devid;
};

struct args_ready {
	__u32	token;
};

struct args_fail {
	__u32	token;
	__s32	status;
};

struct args_setpipefd {
	__s32	pipefd;
};

struct args_timeout {
	__u64	timeout;
};

struct args_requester {
	__u32	uid;
	__u32	gid;
};

struct args_expire {
	__u32	how;
};

struct args_askumount {
	__u32	may_umount;
};

struct args_ismountpoint {
	union {
		struct args_in {
			__u32	type;
		} in;
		struct args_out {
			__u32	devid;
			__u32	magic;
		} out;
	};
};

/*
 * All the ioctls use this structure.
 * When sending a path size must account for the total length
 * of the chunk of memory otherwise it is the size of the
 * structure.
 */

struct autofs_dev_ioctl {
	__u32 ver_major;
	__u32 ver_minor;
	__u32 size;		/* total size of data passed in
				 * including this struct */
	__s32 ioctlfd;		/* automount command fd */

	/* Command parameters */

	union {
		struct args_protover		protover;
		struct args_protosubver		protosubver;
		struct args_openmount		openmount;
		struct args_ready		ready;
		struct args_fail		fail;
		struct args_setpipefd		setpipefd;
		struct args_timeout		timeout;
		struct args_requester		requester;
		struct args_expire		expire;
		struct args_askumount		askumount;
		struct args_ismountpoint	ismountpoint;
	};

	char path[];
};

static inline void init_autofs_dev_ioctl(struct autofs_dev_ioctl *in)
{
	memset(in, 0, AUTOFS_DEV_IOCTL_SIZE);

Annotation

Implementation Notes