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216 lines
4.9 KiB
216 lines
4.9 KiB
/* SPDX-License-Identifier: GPL-2.0+ WITH Linux-syscall-note */ |
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/* |
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* Copyright 2008 Red Hat, Inc. All rights reserved. |
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* Copyright 2008 Ian Kent <[email protected]> |
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* |
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* This file is part of the Linux kernel and is made available under |
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* the terms of the GNU General Public License, version 2, or at your |
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* option, any later version, incorporated herein by reference. |
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*/ |
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#ifndef _UAPI_LINUX_AUTO_DEV_IOCTL_H |
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#define _UAPI_LINUX_AUTO_DEV_IOCTL_H |
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#include <linux/auto_fs.h> |
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#include <linux/string.h> |
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#define AUTOFS_DEVICE_NAME "autofs" |
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#define AUTOFS_DEV_IOCTL_VERSION_MAJOR 1 |
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#define AUTOFS_DEV_IOCTL_VERSION_MINOR 1 |
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#define AUTOFS_DEV_IOCTL_SIZE sizeof(struct autofs_dev_ioctl) |
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/* |
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* An ioctl interface for autofs mount point control. |
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*/ |
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struct args_protover { |
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__u32 version; |
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}; |
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struct args_protosubver { |
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__u32 sub_version; |
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}; |
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struct args_openmount { |
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__u32 devid; |
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}; |
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struct args_ready { |
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__u32 token; |
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}; |
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struct args_fail { |
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__u32 token; |
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__s32 status; |
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}; |
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struct args_setpipefd { |
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__s32 pipefd; |
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}; |
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struct args_timeout { |
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__u64 timeout; |
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}; |
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struct args_requester { |
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__u32 uid; |
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__u32 gid; |
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}; |
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struct args_expire { |
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__u32 how; |
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}; |
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struct args_askumount { |
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__u32 may_umount; |
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}; |
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struct args_ismountpoint { |
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union { |
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struct args_in { |
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__u32 type; |
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} in; |
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struct args_out { |
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__u32 devid; |
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__u32 magic; |
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} out; |
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}; |
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}; |
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/* |
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* All the ioctls use this structure. |
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* When sending a path size must account for the total length |
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* of the chunk of memory otherwise it is the size of the |
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* structure. |
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*/ |
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struct autofs_dev_ioctl { |
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__u32 ver_major; |
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__u32 ver_minor; |
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__u32 size; /* total size of data passed in |
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* including this struct */ |
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__s32 ioctlfd; /* automount command fd */ |
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/* Command parameters */ |
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union { |
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struct args_protover protover; |
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struct args_protosubver protosubver; |
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struct args_openmount openmount; |
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struct args_ready ready; |
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struct args_fail fail; |
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struct args_setpipefd setpipefd; |
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struct args_timeout timeout; |
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struct args_requester requester; |
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struct args_expire expire; |
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struct args_askumount askumount; |
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struct args_ismountpoint ismountpoint; |
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}; |
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char path[0]; |
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}; |
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static inline void init_autofs_dev_ioctl(struct autofs_dev_ioctl *in) |
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{ |
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memset(in, 0, AUTOFS_DEV_IOCTL_SIZE); |
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in->ver_major = AUTOFS_DEV_IOCTL_VERSION_MAJOR; |
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in->ver_minor = AUTOFS_DEV_IOCTL_VERSION_MINOR; |
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in->size = AUTOFS_DEV_IOCTL_SIZE; |
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in->ioctlfd = -1; |
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} |
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enum { |
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/* Get various version info */ |
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AUTOFS_DEV_IOCTL_VERSION_CMD = 0x71, |
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AUTOFS_DEV_IOCTL_PROTOVER_CMD, |
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AUTOFS_DEV_IOCTL_PROTOSUBVER_CMD, |
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/* Open mount ioctl fd */ |
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AUTOFS_DEV_IOCTL_OPENMOUNT_CMD, |
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/* Close mount ioctl fd */ |
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AUTOFS_DEV_IOCTL_CLOSEMOUNT_CMD, |
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/* Mount/expire status returns */ |
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AUTOFS_DEV_IOCTL_READY_CMD, |
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AUTOFS_DEV_IOCTL_FAIL_CMD, |
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/* Activate/deactivate autofs mount */ |
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AUTOFS_DEV_IOCTL_SETPIPEFD_CMD, |
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AUTOFS_DEV_IOCTL_CATATONIC_CMD, |
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/* Expiry timeout */ |
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AUTOFS_DEV_IOCTL_TIMEOUT_CMD, |
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/* Get mount last requesting uid and gid */ |
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AUTOFS_DEV_IOCTL_REQUESTER_CMD, |
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/* Check for eligible expire candidates */ |
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AUTOFS_DEV_IOCTL_EXPIRE_CMD, |
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/* Request busy status */ |
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AUTOFS_DEV_IOCTL_ASKUMOUNT_CMD, |
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/* Check if path is a mountpoint */ |
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AUTOFS_DEV_IOCTL_ISMOUNTPOINT_CMD, |
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}; |
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#define AUTOFS_DEV_IOCTL_VERSION \ |
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_IOWR(AUTOFS_IOCTL, \ |
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AUTOFS_DEV_IOCTL_VERSION_CMD, struct autofs_dev_ioctl) |
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#define AUTOFS_DEV_IOCTL_PROTOVER \ |
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_IOWR(AUTOFS_IOCTL, \ |
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AUTOFS_DEV_IOCTL_PROTOVER_CMD, struct autofs_dev_ioctl) |
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#define AUTOFS_DEV_IOCTL_PROTOSUBVER \ |
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_IOWR(AUTOFS_IOCTL, \ |
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AUTOFS_DEV_IOCTL_PROTOSUBVER_CMD, struct autofs_dev_ioctl) |
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#define AUTOFS_DEV_IOCTL_OPENMOUNT \ |
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_IOWR(AUTOFS_IOCTL, \ |
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AUTOFS_DEV_IOCTL_OPENMOUNT_CMD, struct autofs_dev_ioctl) |
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#define AUTOFS_DEV_IOCTL_CLOSEMOUNT \ |
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_IOWR(AUTOFS_IOCTL, \ |
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AUTOFS_DEV_IOCTL_CLOSEMOUNT_CMD, struct autofs_dev_ioctl) |
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#define AUTOFS_DEV_IOCTL_READY \ |
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_IOWR(AUTOFS_IOCTL, \ |
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AUTOFS_DEV_IOCTL_READY_CMD, struct autofs_dev_ioctl) |
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#define AUTOFS_DEV_IOCTL_FAIL \ |
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_IOWR(AUTOFS_IOCTL, \ |
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AUTOFS_DEV_IOCTL_FAIL_CMD, struct autofs_dev_ioctl) |
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#define AUTOFS_DEV_IOCTL_SETPIPEFD \ |
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_IOWR(AUTOFS_IOCTL, \ |
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AUTOFS_DEV_IOCTL_SETPIPEFD_CMD, struct autofs_dev_ioctl) |
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#define AUTOFS_DEV_IOCTL_CATATONIC \ |
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_IOWR(AUTOFS_IOCTL, \ |
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AUTOFS_DEV_IOCTL_CATATONIC_CMD, struct autofs_dev_ioctl) |
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#define AUTOFS_DEV_IOCTL_TIMEOUT \ |
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_IOWR(AUTOFS_IOCTL, \ |
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AUTOFS_DEV_IOCTL_TIMEOUT_CMD, struct autofs_dev_ioctl) |
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#define AUTOFS_DEV_IOCTL_REQUESTER \ |
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_IOWR(AUTOFS_IOCTL, \ |
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AUTOFS_DEV_IOCTL_REQUESTER_CMD, struct autofs_dev_ioctl) |
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#define AUTOFS_DEV_IOCTL_EXPIRE \ |
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_IOWR(AUTOFS_IOCTL, \ |
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AUTOFS_DEV_IOCTL_EXPIRE_CMD, struct autofs_dev_ioctl) |
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#define AUTOFS_DEV_IOCTL_ASKUMOUNT \ |
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_IOWR(AUTOFS_IOCTL, \ |
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AUTOFS_DEV_IOCTL_ASKUMOUNT_CMD, struct autofs_dev_ioctl) |
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#define AUTOFS_DEV_IOCTL_ISMOUNTPOINT \ |
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_IOWR(AUTOFS_IOCTL, \ |
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AUTOFS_DEV_IOCTL_ISMOUNTPOINT_CMD, struct autofs_dev_ioctl) |
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#endif /* _UAPI_LINUX_AUTO_DEV_IOCTL_H */
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