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Add support for more linux ioctls.

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I've had this sitting in my tree for a long time and I can't seem to
find who sent it to me in the first place, apologies to whoever is
missing out on a Contributed by: line here.

I belive it works as it should.
This commit is contained in:
Poul-Henning Kamp 2004-06-14 07:26:23 +00:00
parent a67ed623d0
commit 71e9d5f9c8
Notes: svn2git 2020-12-20 02:59:44 +00:00 
svn path=/head/; revision=130453
2 changed files with 117 additions and 2 deletions
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105
sys/compat/linux/linux_ioctl.c
View file

@ -49,6 +49,7 @@ __FBSDID("$FreeBSD$");
#include <sys/socket.h>
#include <sys/sockio.h>
#include <sys/soundcard.h>
#include <sys/stdint.h>
#include <sys/tty.h>
#include <sys/uio.h>
#include <net/if.h>
@ -65,6 +66,7 @@ __FBSDID("$FreeBSD$");
static linux_ioctl_function_t linux_ioctl_cdrom;
static linux_ioctl_function_t linux_ioctl_vfat;
static linux_ioctl_function_t linux_ioctl_console;
static linux_ioctl_function_t linux_ioctl_hdio;
static linux_ioctl_function_t linux_ioctl_disk;
static linux_ioctl_function_t linux_ioctl_socket;
static linux_ioctl_function_t linux_ioctl_sound;
@ -79,6 +81,8 @@ static struct linux_ioctl_handler vfat_handler =
{ linux_ioctl_vfat, LINUX_IOCTL_VFAT_MIN, LINUX_IOCTL_VFAT_MAX };
static struct linux_ioctl_handler console_handler =
{ linux_ioctl_console, LINUX_IOCTL_CONSOLE_MIN, LINUX_IOCTL_CONSOLE_MAX };
static struct linux_ioctl_handler hdio_handler =
{ linux_ioctl_hdio, LINUX_IOCTL_HDIO_MIN, LINUX_IOCTL_HDIO_MAX };
static struct linux_ioctl_handler disk_handler =
{ linux_ioctl_disk, LINUX_IOCTL_DISK_MIN, LINUX_IOCTL_DISK_MAX };
static struct linux_ioctl_handler socket_handler =
@ -95,6 +99,7 @@ static struct linux_ioctl_handler drm_handler =
DATA_SET(linux_ioctl_handler_set, cdrom_handler);
DATA_SET(linux_ioctl_handler_set, vfat_handler);
DATA_SET(linux_ioctl_handler_set, console_handler);
DATA_SET(linux_ioctl_handler_set, hdio_handler);
DATA_SET(linux_ioctl_handler_set, disk_handler);
DATA_SET(linux_ioctl_handler_set, socket_handler);
DATA_SET(linux_ioctl_handler_set, sound_handler);
@ -112,6 +117,105 @@ struct handler_element
static TAILQ_HEAD(, handler_element) handlers =
TAILQ_HEAD_INITIALIZER(handlers);
/*
* hdio related ioctls for VMWare support
*/
struct linux_hd_geometry {
u_int8_t heads;
u_int8_t sectors;
u_int16_t cylinders;
u_int32_t start;
};
struct linux_hd_big_geometry {
u_int8_t heads;
u_int8_t sectors;
u_int32_t cylinders;
u_int32_t start;
};
static int
linux_ioctl_hdio(struct thread *td, struct linux_ioctl_args *args)
{
struct file *fp;
int error;
u_int sectorsize, fwcylinders, fwheads, fwsectors;
off_t mediasize, bytespercyl;
if ((error = fget(td, args->fd, &fp)) != 0)
return (error);
switch (args->cmd & 0xffff) {
case LINUX_HDIO_GET_GEO:
case LINUX_HDIO_GET_GEO_BIG:
error = fo_ioctl(fp, DIOCGMEDIASIZE,
(caddr_t)&mediasize, td->td_ucred, td);
if (!error)
error = fo_ioctl(fp, DIOCGSECTORSIZE,
(caddr_t)&sectorsize, td->td_ucred, td);
if (!error)
error = fo_ioctl(fp, DIOCGFWHEADS,
(caddr_t)&fwheads, td->td_ucred, td);
if (!error)
error = fo_ioctl(fp, DIOCGFWSECTORS,
(caddr_t)&fwsectors, td->td_ucred, td);
/*
* XXX: DIOCGFIRSTOFFSET is not yet implemented, so
* so pretend that GEOM always says 0. This is NOT VALID
* for slices or partitions, only the per-disk raw devices.
*/
fdrop(fp, td);
if (error)
return (error);
/*
* 1. Calculate the number of bytes in a cylinder,
* given the firmware's notion of heads and sectors
* per cylinder.
* 2. Calculate the number of cylinders, given the total
* size of the media.
* All internal calculations should have 64-bit precision.
*/
bytespercyl = (off_t) sectorsize * fwheads * fwsectors;
fwcylinders = mediasize / bytespercyl;
#if defined(DEBUG)
linux_msg(td, "HDIO_GET_GEO: mediasize %jd, c/h/s %d/%d/%d, "
"bpc %jd",
(intmax_t)mediasize, fwcylinders, fwheads, fwsectors,
(intmax_t)bytespercyl);
#endif
if ((args->cmd & 0xffff) == LINUX_HDIO_GET_GEO) {
struct linux_hd_geometry hdg;
hdg.cylinders = fwcylinders;
hdg.heads = fwheads;
hdg.sectors = fwsectors;
hdg.start = 0;
error = copyout(&hdg, (void *)args->arg, sizeof(hdg));
} else if ((args->cmd & 0xffff) == LINUX_HDIO_GET_GEO_BIG) {
struct linux_hd_big_geometry hdbg;
hdbg.cylinders = fwcylinders;
hdbg.heads = fwheads;
hdbg.sectors = fwsectors;
hdbg.start = 0;
error = copyout(&hdbg, (void *)args->arg, sizeof(hdbg));
}
return (error);
break;
default:
/* XXX */
linux_msg(td,
"ioctl fd=%d, cmd=0x%x ('%c',%d) is not implemented",
args->fd, (int)(args->cmd & 0xffff),
(int)(args->cmd & 0xff00) >> 8,
(int)(args->cmd & 0xff));
break;
}
fdrop(fp, td);
return (ENOIOCTL);
}
static int
linux_ioctl_disk(struct thread *td, struct linux_ioctl_args *args)
{
@ -138,6 +242,7 @@ linux_ioctl_disk(struct thread *td, struct linux_ioctl_args *args)
*/
return (copyout(&sectorsize, (void *)args->arg,
sizeof(sectorsize)));
break;
}
fdrop(fp, td);
return (ENOIOCTL);

14
sys/compat/linux/linux_ioctl.h
View file

@ -47,8 +47,18 @@
#define LINUX_BLKSECTGET 0x1267
#define LINUX_BLKSSZGET 0x1268
#define LINUX_IOCTL_DISK_MIN LINUX_BLKROSET
#define LINUX_IOCTL_DISK_MAX LINUX_BLKSSZGET
#define LINUX_IOCTL_DISK_MIN LINUX_BLKROSET
#define LINUX_IOCTL_DISK_MAX LINUX_BLKSSZGET
/*
* hdio
*/
#define LINUX_HDIO_GET_GEO 0x0301
#define LINUX_HDIO_GET_IDENTITY 0x030D /* not yet implemented */
#define LINUX_HDIO_GET_GEO_BIG 0x0330
#define LINUX_IOCTL_HDIO_MIN LINUX_HDIO_GET_GEO
#define LINUX_IOCTL_HDIO_MAX LINUX_HDIO_GET_GEO_BIG
/*
* cdrom