diff options
Diffstat (limited to 'fs/compat_ioctl.c')
| -rw-r--r-- | fs/compat_ioctl.c | 47 |
1 files changed, 47 insertions, 0 deletions
diff --git a/fs/compat_ioctl.c b/fs/compat_ioctl.c index 55d9a3a954cf..b9aeacc11c8f 100644 --- a/fs/compat_ioctl.c +++ b/fs/compat_ioctl.c @@ -2475,6 +2475,49 @@ static int old_bridge_ioctl(unsigned int fd, unsigned int cmd, unsigned long arg return -EINVAL; } +#define RTC_IRQP_READ32 _IOR('p', 0x0b, compat_ulong_t) +#define RTC_IRQP_SET32 _IOW('p', 0x0c, compat_ulong_t) +#define RTC_EPOCH_READ32 _IOR('p', 0x0d, compat_ulong_t) +#define RTC_EPOCH_SET32 _IOW('p', 0x0e, compat_ulong_t) + +static int rtc_ioctl(unsigned fd, unsigned cmd, unsigned long arg) +{ + mm_segment_t oldfs = get_fs(); + compat_ulong_t val32; + unsigned long kval; + int ret; + + switch (cmd) { + case RTC_IRQP_READ32: + case RTC_EPOCH_READ32: + set_fs(KERNEL_DS); + ret = sys_ioctl(fd, (cmd == RTC_IRQP_READ32) ? + RTC_IRQP_READ : RTC_EPOCH_READ, + (unsigned long)&kval); + set_fs(oldfs); + if (ret) + return ret; + val32 = kval; + return put_user(val32, (unsigned int __user *)arg); + case RTC_IRQP_SET32: + case RTC_EPOCH_SET32: + ret = get_user(val32, (unsigned int __user *)arg); + if (ret) + return ret; + kval = val32; + + set_fs(KERNEL_DS); + ret = sys_ioctl(fd, (cmd == RTC_IRQP_SET32) ? + RTC_IRQP_SET : RTC_EPOCH_SET, + (unsigned long)&kval); + set_fs(oldfs); + return ret; + default: + /* unreached */ + return -ENOIOCTLCMD; + } +} + #if defined(CONFIG_NCP_FS) || defined(CONFIG_NCP_FS_MODULE) struct ncp_ioctl_request_32 { u32 function; @@ -2858,6 +2901,10 @@ HANDLE_IOCTL(SIOCSIWENCODE, do_wireless_ioctl) HANDLE_IOCTL(SIOCGIWENCODE, do_wireless_ioctl) HANDLE_IOCTL(SIOCSIFBR, old_bridge_ioctl) HANDLE_IOCTL(SIOCGIFBR, old_bridge_ioctl) +HANDLE_IOCTL(RTC_IRQP_READ32, rtc_ioctl) +HANDLE_IOCTL(RTC_IRQP_SET32, rtc_ioctl) +HANDLE_IOCTL(RTC_EPOCH_READ32, rtc_ioctl) +HANDLE_IOCTL(RTC_EPOCH_SET32, rtc_ioctl) #if defined(CONFIG_NCP_FS) || defined(CONFIG_NCP_FS_MODULE) HANDLE_IOCTL(NCP_IOC_NCPREQUEST_32, do_ncp_ncprequest) |
