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linux-user: Implement FS_IOC_GETFLAGS and FS_IOC_SETFLAGS ioctls 

Implement the FS_IOC_GETFLAGS and FS_IOC_SETFLAGS ioctls, as used
by chattr.

Note that the type information encoded in these ioctl numbers
is at odds with the actual type the kernel accesses, as discussed
in http://thread.gmane.org/gmane.linux.file-systems/80164.

Signed-off-by: Peter Maydell <peter.maydell@linaro.org>
Signed-off-by: Riku Voipio <riku.voipio@linaro.org>
This commit is contained in:
Peter Maydell 2016-07-15 18:44:45 +01:00 committed by Riku Voipio
parent 26a6fc96e0
commit 6080723102
2 changed files with 9 additions and 0 deletions
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3
linux-user/ioctls.h
View File

@ -120,6 +120,9 @@
MK_PTR(MK_STRUCT(STRUCT_fiemap)))
#endif
IOCTL(FS_IOC_GETFLAGS, IOC_R, MK_PTR(TYPE_INT))
IOCTL(FS_IOC_SETFLAGS, IOC_W, MK_PTR(TYPE_INT))
IOCTL(SIOCATMARK, IOC_R, MK_PTR(TYPE_INT))
IOCTL(SIOCGIFNAME, IOC_RW, MK_PTR(TYPE_INT))
IOCTL(SIOCGIFFLAGS, IOC_W | IOC_R, MK_PTR(MK_STRUCT(STRUCT_short_ifreq)))

6
linux-user/syscall_defs.h
View File

@ -998,6 +998,12 @@ struct target_pollfd {
#define TARGET_FIBMAP TARGET_IO(0x00,1) /* bmap access */
#define TARGET_FIGETBSZ TARGET_IO(0x00,2) /* get the block size used for bmap */
/* Note that the ioctl numbers claim type "long" but the actual type
* used by the kernel is "int".
*/
#define TARGET_FS_IOC_GETFLAGS TARGET_IOR('f', 1, long)
#define TARGET_FS_IOC_SETFLAGS TARGET_IOW('f', 2, long)
#define TARGET_FS_IOC_FIEMAP TARGET_IOWR('f',11,struct fiemap)
/* cdrom commands */