| /* SPDX-License-Identifier: GPL-2.0+ WITH Linux-syscall-note */ |
| /* |
| * Copyright 2008 Red Hat, Inc. All rights reserved. |
| * Copyright 2008 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_DEV_IOCTL_H |
| #define _UAPI_LINUX_AUTO_DEV_IOCTL_H |
| |
| #include <linux/auto_fs.h> |
| #include <linux/string.h> |
| |
| #define AUTOFS_DEVICE_NAME "autofs" |
| |
| #define AUTOFS_DEV_IOCTL_VERSION_MAJOR 1 |
| #define AUTOFS_DEV_IOCTL_VERSION_MINOR 1 |
| |
| #define AUTOFS_DEV_IOCTL_SIZE sizeof(struct autofs_dev_ioctl) |
| |
| /* |
| * An ioctl interface for autofs mount point control. |
| */ |
| |
| 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); |
| in->ver_major = AUTOFS_DEV_IOCTL_VERSION_MAJOR; |
| in->ver_minor = AUTOFS_DEV_IOCTL_VERSION_MINOR; |
| in->size = AUTOFS_DEV_IOCTL_SIZE; |
| in->ioctlfd = -1; |
| } |
| |
| enum { |
| /* Get various version info */ |
| AUTOFS_DEV_IOCTL_VERSION_CMD = 0x71, |
| AUTOFS_DEV_IOCTL_PROTOVER_CMD, |
| AUTOFS_DEV_IOCTL_PROTOSUBVER_CMD, |
| |
| /* Open mount ioctl fd */ |
| AUTOFS_DEV_IOCTL_OPENMOUNT_CMD, |
| |
| /* Close mount ioctl fd */ |
| AUTOFS_DEV_IOCTL_CLOSEMOUNT_CMD, |
| |
| /* Mount/expire status returns */ |
| AUTOFS_DEV_IOCTL_READY_CMD, |
| AUTOFS_DEV_IOCTL_FAIL_CMD, |
| |
| /* Activate/deactivate autofs mount */ |
| AUTOFS_DEV_IOCTL_SETPIPEFD_CMD, |
| AUTOFS_DEV_IOCTL_CATATONIC_CMD, |
| |
| /* Expiry timeout */ |
| AUTOFS_DEV_IOCTL_TIMEOUT_CMD, |
| |
| /* Get mount last requesting uid and gid */ |
| AUTOFS_DEV_IOCTL_REQUESTER_CMD, |
| |
| /* Check for eligible expire candidates */ |
| AUTOFS_DEV_IOCTL_EXPIRE_CMD, |
| |
| /* Request busy status */ |
| AUTOFS_DEV_IOCTL_ASKUMOUNT_CMD, |
| |
| /* Check if path is a mountpoint */ |
| AUTOFS_DEV_IOCTL_ISMOUNTPOINT_CMD, |
| }; |
| |
| #define AUTOFS_DEV_IOCTL_VERSION \ |
| _IOWR(AUTOFS_IOCTL, \ |
| AUTOFS_DEV_IOCTL_VERSION_CMD, struct autofs_dev_ioctl) |
| |
| #define AUTOFS_DEV_IOCTL_PROTOVER \ |
| _IOWR(AUTOFS_IOCTL, \ |
| AUTOFS_DEV_IOCTL_PROTOVER_CMD, struct autofs_dev_ioctl) |
| |
| #define AUTOFS_DEV_IOCTL_PROTOSUBVER \ |
| _IOWR(AUTOFS_IOCTL, \ |
| AUTOFS_DEV_IOCTL_PROTOSUBVER_CMD, struct autofs_dev_ioctl) |
| |
| #define AUTOFS_DEV_IOCTL_OPENMOUNT \ |
| _IOWR(AUTOFS_IOCTL, \ |
| AUTOFS_DEV_IOCTL_OPENMOUNT_CMD, struct autofs_dev_ioctl) |
| |
| #define AUTOFS_DEV_IOCTL_CLOSEMOUNT \ |
| _IOWR(AUTOFS_IOCTL, \ |
| AUTOFS_DEV_IOCTL_CLOSEMOUNT_CMD, struct autofs_dev_ioctl) |
| |
| #define AUTOFS_DEV_IOCTL_READY \ |
| _IOWR(AUTOFS_IOCTL, \ |
| AUTOFS_DEV_IOCTL_READY_CMD, struct autofs_dev_ioctl) |
| |
| #define AUTOFS_DEV_IOCTL_FAIL \ |
| _IOWR(AUTOFS_IOCTL, \ |
| AUTOFS_DEV_IOCTL_FAIL_CMD, struct autofs_dev_ioctl) |
| |
| #define AUTOFS_DEV_IOCTL_SETPIPEFD \ |
| _IOWR(AUTOFS_IOCTL, \ |
| AUTOFS_DEV_IOCTL_SETPIPEFD_CMD, struct autofs_dev_ioctl) |
| |
| #define AUTOFS_DEV_IOCTL_CATATONIC \ |
| _IOWR(AUTOFS_IOCTL, \ |
| AUTOFS_DEV_IOCTL_CATATONIC_CMD, struct autofs_dev_ioctl) |
| |
| #define AUTOFS_DEV_IOCTL_TIMEOUT \ |
| _IOWR(AUTOFS_IOCTL, \ |
| AUTOFS_DEV_IOCTL_TIMEOUT_CMD, struct autofs_dev_ioctl) |
| |
| #define AUTOFS_DEV_IOCTL_REQUESTER \ |
| _IOWR(AUTOFS_IOCTL, \ |
| AUTOFS_DEV_IOCTL_REQUESTER_CMD, struct autofs_dev_ioctl) |
| |
| #define AUTOFS_DEV_IOCTL_EXPIRE \ |
| _IOWR(AUTOFS_IOCTL, \ |
| AUTOFS_DEV_IOCTL_EXPIRE_CMD, struct autofs_dev_ioctl) |
| |
| #define AUTOFS_DEV_IOCTL_ASKUMOUNT \ |
| _IOWR(AUTOFS_IOCTL, \ |
| AUTOFS_DEV_IOCTL_ASKUMOUNT_CMD, struct autofs_dev_ioctl) |
| |
| #define AUTOFS_DEV_IOCTL_ISMOUNTPOINT \ |
| _IOWR(AUTOFS_IOCTL, \ |
| AUTOFS_DEV_IOCTL_ISMOUNTPOINT_CMD, struct autofs_dev_ioctl) |
| |
| #endif /* _UAPI_LINUX_AUTO_DEV_IOCTL_H */ |