diff options
| author |   Andi Kleen <ak@suse.de> | 2006-01-11 22:44:03 +0100 |
|---|---|---|
| committer |   Linus Torvalds <torvalds@g5.osdl.org> | 2006-01-11 19:04:53 -0800 |
| commit | 2966387b481a11a90a7bed6600fc17b4253f6980 (patch) | |
| tree | 69bb1a6cb29ccb6983ff9f2644947da6b537dc17 /fs/compat_ioctl.c | |
| parent | [PATCH] x86_64: Remove unnecessary case from the page fault handler (diff) | |
| download | linux-dev-2966387b481a11a90a7bed6600fc17b4253f6980.tar.xz linux-dev-2966387b481a11a90a7bed6600fc17b4253f6980.zip | |
[PATCH] x86_64: Implement compat code for sg driver SG_GET_REQUEST_TABLE ioctl
Apparently helps with some non SANE scanner drivers.
Cc: axboe@suse.de
Signed-off-by: Andi Kleen <ak@suse.de>
Signed-off-by: Linus Torvalds <torvalds@osdl.org>
Diffstat (limited to 'fs/compat_ioctl.c')
| -rw-r--r-- | fs/compat_ioctl.c | 35 |
1 files changed, 35 insertions, 0 deletions
diff --git a/fs/compat_ioctl.c b/fs/compat_ioctl.c index f51696358a21..f0b7256b2f87 100644 --- a/fs/compat_ioctl.c +++ b/fs/compat_ioctl.c @@ -916,6 +916,40 @@ static int sg_ioctl_trans(unsigned int fd, unsigned int cmd, unsigned long arg) return err; } +struct compat_sg_req_info { /* used by SG_GET_REQUEST_TABLE ioctl() */ + char req_state; + char orphan; + char sg_io_owned; + char problem; + int pack_id; + compat_uptr_t usr_ptr; + unsigned int duration; + int unused; +}; + +static int sg_grt_trans(unsigned int fd, unsigned int cmd, unsigned long arg) +{ + int err, i; + sg_req_info_t *r; + struct compat_sg_req_info *o = (struct compat_sg_req_info *)arg; + r = compat_alloc_user_space(sizeof(sg_req_info_t)*SG_MAX_QUEUE); + err = sys_ioctl(fd,cmd,(unsigned long)r); + if (err < 0) + return err; + for (i = 0; i < SG_MAX_QUEUE; i++) { + void __user *ptr; + int d; + + if (copy_in_user(o + i, r + i, offsetof(sg_req_info_t, usr_ptr)) || + get_user(ptr, &r[i].usr_ptr) || + get_user(d, &r[i].duration) || + put_user((u32)(unsigned long)(ptr), &o[i].usr_ptr) || + put_user(d, &o[i].duration)) + return -EFAULT; + } + return err; +} + struct sock_fprog32 { unsigned short len; compat_caddr_t filter; @@ -2794,6 +2828,7 @@ HANDLE_IOCTL(FDPOLLDRVSTAT32, fd_ioctl_trans) HANDLE_IOCTL(FDGETFDCSTAT32, fd_ioctl_trans) HANDLE_IOCTL(FDWERRORGET32, fd_ioctl_trans) HANDLE_IOCTL(SG_IO,sg_ioctl_trans) +HANDLE_IOCTL(SG_GET_REQUEST_TABLE, sg_grt_trans) HANDLE_IOCTL(PPPIOCGIDLE32, ppp_ioctl_trans) HANDLE_IOCTL(PPPIOCSCOMPRESS32, ppp_ioctl_trans) HANDLE_IOCTL(PPPIOCSPASS32, ppp_sock_fprog_ioctl_trans) |