diff options
Diffstat (limited to 'include')
| -rw-r--r-- | include/linux/blkdev.h | 2 | ||||
| -rw-r--r-- | include/linux/falloc.h | 20 | ||||
| -rw-r--r-- | include/linux/fs.h | 7 | ||||
| -rw-r--r-- | include/linux/mtio.h | 60 | ||||
| -rw-r--r-- | include/uapi/linux/ppp-ioctl.h | 2 | ||||
| -rw-r--r-- | include/uapi/linux/ppp_defs.h | 14 |
6 files changed, 105 insertions, 0 deletions
diff --git a/include/linux/blkdev.h b/include/linux/blkdev.h index 397bb9bc230b..6012e2592628 100644 --- a/include/linux/blkdev.h +++ b/include/linux/blkdev.h @@ -869,6 +869,8 @@ extern int scsi_cmd_ioctl(struct request_queue *, struct gendisk *, fmode_t, unsigned int, void __user *); extern int sg_scsi_ioctl(struct request_queue *, struct gendisk *, fmode_t, struct scsi_ioctl_command __user *); +extern int get_sg_io_hdr(struct sg_io_hdr *hdr, const void __user *argp); +extern int put_sg_io_hdr(const struct sg_io_hdr *hdr, void __user *argp); extern int blk_queue_enter(struct request_queue *q, blk_mq_req_flags_t flags); extern void blk_queue_exit(struct request_queue *q); diff --git a/include/linux/falloc.h b/include/linux/falloc.h index 674d59f4d6ce..fc61fdb9d1e9 100644 --- a/include/linux/falloc.h +++ b/include/linux/falloc.h @@ -29,4 +29,24 @@ struct space_resv { FALLOC_FL_INSERT_RANGE | \ FALLOC_FL_UNSHARE_RANGE) +/* on ia32 l_start is on a 32-bit boundary */ +#if defined(CONFIG_X86_64) +struct space_resv_32 { + __s16 l_type; + __s16 l_whence; + __s64 l_start __attribute__((packed)); + /* len == 0 means until end of file */ + __s64 l_len __attribute__((packed)); + __s32 l_sysid; + __u32 l_pid; + __s32 l_pad[4]; /* reserve area */ +}; + +#define FS_IOC_RESVSP_32 _IOW ('X', 40, struct space_resv_32) +#define FS_IOC_RESVSP64_32 _IOW ('X', 42, struct space_resv_32) + +int compat_ioctl_preallocate(struct file *, struct space_resv_32 __user *); + +#endif + #endif /* _FALLOC_H_ */ diff --git a/include/linux/fs.h b/include/linux/fs.h index ae6c5c37f3ae..670f96a6529c 100644 --- a/include/linux/fs.h +++ b/include/linux/fs.h @@ -1727,6 +1727,13 @@ int vfs_mkobj(struct dentry *, umode_t, extern long vfs_ioctl(struct file *file, unsigned int cmd, unsigned long arg); +#ifdef CONFIG_COMPAT +extern long compat_ptr_ioctl(struct file *file, unsigned int cmd, + unsigned long arg); +#else +#define compat_ptr_ioctl NULL +#endif + /* * VFS file helper functions. */ diff --git a/include/linux/mtio.h b/include/linux/mtio.h new file mode 100644 index 000000000000..67d03156f2c2 --- /dev/null +++ b/include/linux/mtio.h @@ -0,0 +1,60 @@ +/* SPDX-License-Identifier: GPL-2.0 */ +#ifndef _LINUX_MTIO_COMPAT_H +#define _LINUX_MTIO_COMPAT_H + +#include <linux/compat.h> +#include <uapi/linux/mtio.h> +#include <linux/uaccess.h> + +/* + * helper functions for implementing compat ioctls on the four tape + * drivers: we define the 32-bit layout of each incompatible structure, + * plus a wrapper function to copy it to user space in either format. + */ + +struct mtget32 { + s32 mt_type; + s32 mt_resid; + s32 mt_dsreg; + s32 mt_gstat; + s32 mt_erreg; + s32 mt_fileno; + s32 mt_blkno; +}; +#define MTIOCGET32 _IOR('m', 2, struct mtget32) + +struct mtpos32 { + s32 mt_blkno; +}; +#define MTIOCPOS32 _IOR('m', 3, struct mtpos32) + +static inline int put_user_mtget(void __user *u, struct mtget *k) +{ + struct mtget32 k32 = { + .mt_type = k->mt_type, + .mt_resid = k->mt_resid, + .mt_dsreg = k->mt_dsreg, + .mt_gstat = k->mt_gstat, + .mt_erreg = k->mt_erreg, + .mt_fileno = k->mt_fileno, + .mt_blkno = k->mt_blkno, + }; + int ret; + + if (in_compat_syscall()) + ret = copy_to_user(u, &k32, sizeof(k32)); + else + ret = copy_to_user(u, k, sizeof(*k)); + + return ret ? -EFAULT : 0; +} + +static inline int put_user_mtpos(void __user *u, struct mtpos *k) +{ + if (in_compat_syscall()) + return put_user(k->mt_blkno, (u32 __user *)u); + else + return put_user(k->mt_blkno, (long __user *)u); +} + +#endif diff --git a/include/uapi/linux/ppp-ioctl.h b/include/uapi/linux/ppp-ioctl.h index 88b5f9990320..7bd2a5a75348 100644 --- a/include/uapi/linux/ppp-ioctl.h +++ b/include/uapi/linux/ppp-ioctl.h @@ -104,6 +104,8 @@ struct pppol2tp_ioc_stats { #define PPPIOCGDEBUG _IOR('t', 65, int) /* Read debug level */ #define PPPIOCSDEBUG _IOW('t', 64, int) /* Set debug level */ #define PPPIOCGIDLE _IOR('t', 63, struct ppp_idle) /* get idle time */ +#define PPPIOCGIDLE32 _IOR('t', 63, struct ppp_idle32) /* 32-bit times */ +#define PPPIOCGIDLE64 _IOR('t', 63, struct ppp_idle64) /* 64-bit times */ #define PPPIOCNEWUNIT _IOWR('t', 62, int) /* create new ppp unit */ #define PPPIOCATTACH _IOW('t', 61, int) /* attach to ppp unit */ #define PPPIOCDETACH _IOW('t', 60, int) /* obsolete, do not use */ diff --git a/include/uapi/linux/ppp_defs.h b/include/uapi/linux/ppp_defs.h index fff51b91b409..0039fa39a358 100644 --- a/include/uapi/linux/ppp_defs.h +++ b/include/uapi/linux/ppp_defs.h @@ -142,10 +142,24 @@ struct ppp_comp_stats { /* * The following structure records the time in seconds since * the last NP packet was sent or received. + * + * Linux implements both 32-bit and 64-bit time_t versions + * for compatibility with user space that defines ppp_idle + * based on the libc time_t. */ struct ppp_idle { __kernel_time_t xmit_idle; /* time since last NP packet sent */ __kernel_time_t recv_idle; /* time since last NP packet received */ }; +struct ppp_idle32 { + __s32 xmit_idle; /* time since last NP packet sent */ + __s32 recv_idle; /* time since last NP packet received */ +}; + +struct ppp_idle64 { + __s64 xmit_idle; /* time since last NP packet sent */ + __s64 recv_idle; /* time since last NP packet received */ +}; + #endif /* _UAPI_PPP_DEFS_H_ */ |