Adding upstream version 6.6.15.upstream/6.6.15

Signed-off-by: Daniel Baumann <daniel.baumann@progress-linux.org>

1 files changed, 231 insertions, 0 deletions

diff --git a/include/uapi/linux/auto_fs.h b/include/uapi/linux/auto_fs.h
new file mode 100644
index 0000000000..1f7925afad
--- /dev/null
+++ b/include/uapi/linux/auto_fs.h
@@ -0,0 +1,231 @@
+/* SPDX-License-Identifier: GPL-2.0+ WITH Linux-syscall-note */
+/*
+ * Copyright 1997 Transmeta Corporation - All Rights Reserved
+ * Copyright 1999-2000 Jeremy Fitzhardinge <jeremy@goop.org>
+ * Copyright 2005-2006,2013,2017-2018 Ian Kent <raven@themaw.net>
+ *
+ * This file is part of the Linux kernel and is made available under
+ * the terms of the GNU General Public License, version 2, or at your
+ * option, any later version, incorporated herein by reference.
+ *
+ * ----------------------------------------------------------------------- */
+
+#ifndef _UAPI_LINUX_AUTO_FS_H
+#define _UAPI_LINUX_AUTO_FS_H
+
+#include <linux/types.h>
+#include <linux/limits.h>
+#ifndef __KERNEL__
+#include <sys/ioctl.h>
+#endif /* __KERNEL__ */
+
+#define AUTOFS_PROTO_VERSION		5
+#define AUTOFS_MIN_PROTO_VERSION	3
+#define AUTOFS_MAX_PROTO_VERSION	5
+
+#define AUTOFS_PROTO_SUBVERSION		5
+
+/*
+ * The wait_queue_token (autofs_wqt_t) is part of a structure which is passed
+ * back to the kernel via ioctl from userspace. On architectures where 32- and
+ * 64-bit userspace binaries can be executed it's important that the size of
+ * autofs_wqt_t stays constant between 32- and 64-bit Linux kernels so that we
+ * do not break the binary ABI interface by changing the structure size.
+ */
+#if defined(__ia64__) || defined(__alpha__) /* pure 64bit architectures */
+typedef unsigned long autofs_wqt_t;
+#else
+typedef unsigned int autofs_wqt_t;
+#endif
+
+/* Packet types */
+#define autofs_ptype_missing	0	/* Missing entry (mount request) */
+#define autofs_ptype_expire	1	/* Expire entry (umount request) */
+
+struct autofs_packet_hdr {
+	int proto_version;		/* Protocol version */
+	int type;			/* Type of packet */
+};
+
+struct autofs_packet_missing {
+	struct autofs_packet_hdr hdr;
+	autofs_wqt_t wait_queue_token;
+	int len;
+	char name[NAME_MAX+1];
+};	
+
+/* v3 expire (via ioctl) */
+struct autofs_packet_expire {
+	struct autofs_packet_hdr hdr;
+	int len;
+	char name[NAME_MAX+1];
+};
+
+#define AUTOFS_IOCTL 0x93
+
+enum {
+	AUTOFS_IOC_READY_CMD = 0x60,
+	AUTOFS_IOC_FAIL_CMD,
+	AUTOFS_IOC_CATATONIC_CMD,
+	AUTOFS_IOC_PROTOVER_CMD,
+	AUTOFS_IOC_SETTIMEOUT_CMD,
+	AUTOFS_IOC_EXPIRE_CMD,
+};
+
+#define AUTOFS_IOC_READY        _IO(AUTOFS_IOCTL, AUTOFS_IOC_READY_CMD)
+#define AUTOFS_IOC_FAIL         _IO(AUTOFS_IOCTL, AUTOFS_IOC_FAIL_CMD)
+#define AUTOFS_IOC_CATATONIC    _IO(AUTOFS_IOCTL, AUTOFS_IOC_CATATONIC_CMD)
+#define AUTOFS_IOC_PROTOVER     _IOR(AUTOFS_IOCTL, \
+				     AUTOFS_IOC_PROTOVER_CMD, int)
+#define AUTOFS_IOC_SETTIMEOUT32 _IOWR(AUTOFS_IOCTL, \
+				      AUTOFS_IOC_SETTIMEOUT_CMD, \
+				      compat_ulong_t)
+#define AUTOFS_IOC_SETTIMEOUT   _IOWR(AUTOFS_IOCTL, \
+				      AUTOFS_IOC_SETTIMEOUT_CMD, \
+				      unsigned long)
+#define AUTOFS_IOC_EXPIRE       _IOR(AUTOFS_IOCTL, \
+				     AUTOFS_IOC_EXPIRE_CMD, \
+				     struct autofs_packet_expire)
+
+/* autofs version 4 and later definitions */
+
+/* Mask for expire behaviour */
+#define AUTOFS_EXP_NORMAL		0x00
+#define AUTOFS_EXP_IMMEDIATE		0x01
+#define AUTOFS_EXP_LEAVES		0x02
+#define AUTOFS_EXP_FORCED		0x04
+
+#define AUTOFS_TYPE_ANY			0U
+#define AUTOFS_TYPE_INDIRECT		1U
+#define AUTOFS_TYPE_DIRECT		2U
+#define AUTOFS_TYPE_OFFSET		4U
+
+static inline void set_autofs_type_indirect(unsigned int *type)
+{
+	*type = AUTOFS_TYPE_INDIRECT;
+}
+
+static inline unsigned int autofs_type_indirect(unsigned int type)
+{
+	return (type == AUTOFS_TYPE_INDIRECT);
+}
+
+static inline void set_autofs_type_direct(unsigned int *type)
+{
+	*type = AUTOFS_TYPE_DIRECT;
+}
+
+static inline unsigned int autofs_type_direct(unsigned int type)
+{
+	return (type == AUTOFS_TYPE_DIRECT);
+}
+
+static inline void set_autofs_type_offset(unsigned int *type)
+{
+	*type = AUTOFS_TYPE_OFFSET;
+}
+
+static inline unsigned int autofs_type_offset(unsigned int type)
+{
+	return (type == AUTOFS_TYPE_OFFSET);
+}
+
+static inline unsigned int autofs_type_trigger(unsigned int type)
+{
+	return (type == AUTOFS_TYPE_DIRECT || type == AUTOFS_TYPE_OFFSET);
+}
+
+/*
+ * This isn't really a type as we use it to say "no type set" to
+ * indicate we want to search for "any" mount in the
+ * autofs_dev_ioctl_ismountpoint() device ioctl function.
+ */
+static inline void set_autofs_type_any(unsigned int *type)
+{
+	*type = AUTOFS_TYPE_ANY;
+}
+
+static inline unsigned int autofs_type_any(unsigned int type)
+{
+	return (type == AUTOFS_TYPE_ANY);
+}
+
+/* Daemon notification packet types */
+enum autofs_notify {
+	NFY_NONE,
+	NFY_MOUNT,
+	NFY_EXPIRE
+};
+
+/* Kernel protocol version 4 packet types */
+
+/* Expire entry (umount request) */
+#define autofs_ptype_expire_multi	2
+
+/* Kernel protocol version 5 packet types */
+
+/* Indirect mount missing and expire requests. */
+#define autofs_ptype_missing_indirect	3
+#define autofs_ptype_expire_indirect	4
+
+/* Direct mount missing and expire requests */
+#define autofs_ptype_missing_direct	5
+#define autofs_ptype_expire_direct	6
+
+/* v4 multi expire (via pipe) */
+struct autofs_packet_expire_multi {
+	struct autofs_packet_hdr hdr;
+	autofs_wqt_t wait_queue_token;
+	int len;
+	char name[NAME_MAX+1];
+};
+
+union autofs_packet_union {
+	struct autofs_packet_hdr hdr;
+	struct autofs_packet_missing missing;
+	struct autofs_packet_expire expire;
+	struct autofs_packet_expire_multi expire_multi;
+};
+
+/* autofs v5 common packet struct */
+struct autofs_v5_packet {
+	struct autofs_packet_hdr hdr;
+	autofs_wqt_t wait_queue_token;
+	__u32 dev;
+	__u64 ino;
+	__u32 uid;
+	__u32 gid;
+	__u32 pid;
+	__u32 tgid;
+	__u32 len;
+	char name[NAME_MAX+1];
+};
+
+typedef struct autofs_v5_packet autofs_packet_missing_indirect_t;
+typedef struct autofs_v5_packet autofs_packet_expire_indirect_t;
+typedef struct autofs_v5_packet autofs_packet_missing_direct_t;
+typedef struct autofs_v5_packet autofs_packet_expire_direct_t;
+
+union autofs_v5_packet_union {
+	struct autofs_packet_hdr hdr;
+	struct autofs_v5_packet v5_packet;
+	autofs_packet_missing_indirect_t missing_indirect;
+	autofs_packet_expire_indirect_t expire_indirect;
+	autofs_packet_missing_direct_t missing_direct;
+	autofs_packet_expire_direct_t expire_direct;
+};
+
+enum {
+	AUTOFS_IOC_EXPIRE_MULTI_CMD = 0x66, /* AUTOFS_IOC_EXPIRE_CMD + 1 */
+	AUTOFS_IOC_PROTOSUBVER_CMD,
+	AUTOFS_IOC_ASKUMOUNT_CMD = 0x70, /* AUTOFS_DEV_IOCTL_VERSION_CMD - 1 */
+};
+
+#define AUTOFS_IOC_EXPIRE_MULTI		_IOW(AUTOFS_IOCTL, \
+					     AUTOFS_IOC_EXPIRE_MULTI_CMD, int)
+#define AUTOFS_IOC_PROTOSUBVER		_IOR(AUTOFS_IOCTL, \
+					     AUTOFS_IOC_PROTOSUBVER_CMD, int)
+#define AUTOFS_IOC_ASKUMOUNT		_IOR(AUTOFS_IOCTL, \
+					     AUTOFS_IOC_ASKUMOUNT_CMD, int)
+
+#endif /* _UAPI_LINUX_AUTO_FS_H */