Commit 4bdcd79e authored by Neng Chen's avatar Neng Chen Committed by Laurent Vivier
Browse files

linux-user: Add support for SIOC<G|S>IFPFLAGS ioctls for all targets 



Add support for getting and setting extended private flags of a
network device via SIOCSIFPFLAGS and SIOCGIFPFLAGS ioctls.

The ioctl numeric values are platform-independent and determined by
the file include/uapi/linux/sockios.h in Linux kernel source code:

  #define SIOCSIFPFLAGS 0x8934
  #define SIOCGIFPFLAGS	0x8935

These ioctls get (or set) the field ifr_flags of type short in the
structure ifreq. Such functionality is achieved in QEMU by using
MK_STRUCT() and MK_PTR() macros with an appropriate argument, as
it was done for existing similar cases.

Signed-off-by: default avatarNeng Chen <nchen@wavecomp.com>
Signed-off-by: default avatarAleksandar Markovic <amarkovic@wavecomp.com>
Reviewed-by: default avatarLaurent Vivier <laurent@vivier.eu>
Message-Id: <1554839486-3527-1-git-send-email-aleksandar.markovic@rt-rk.com>
Message-Id: <1558282527-22183-4-git-send-email-aleksandar.markovic@rt-rk.com>
Signed-off-by: default avatarLaurent Vivier <laurent@vivier.eu>
parent c495a793

linux-user/ioctls.h

+2 −0
Original line number Diff line number Diff line
@@ -206,6 +206,8 @@ 
  IOCTL(SIOCADDMULTI, IOC_W, MK_PTR(MK_STRUCT(STRUCT_sockaddr_ifreq)))

  IOCTL(SIOCDELMULTI, IOC_W, MK_PTR(MK_STRUCT(STRUCT_sockaddr_ifreq)))

  IOCTL(SIOCGIFINDEX, IOC_W | IOC_R, MK_PTR(MK_STRUCT(STRUCT_int_ifreq)))

  IOCTL(SIOCSIFPFLAGS, IOC_W, MK_PTR(MK_STRUCT(STRUCT_short_ifreq)))

  IOCTL(SIOCGIFPFLAGS, IOC_W | IOC_R, MK_PTR(MK_STRUCT(STRUCT_short_ifreq)))

  IOCTL(SIOCSIFLINK, 0, TYPE_NULL)

  IOCTL_SPECIAL(SIOCGIFCONF, IOC_W | IOC_R, do_ioctl_ifconf,

                MK_PTR(MK_STRUCT(STRUCT_ifconf)))

linux-user/syscall_defs.h

+2 −0
Original line number Diff line number Diff line
@@ -782,6 +782,8 @@ struct target_pollfd { 
#define TARGET_SIOCADDMULTI    0x8931          /* Multicast address lists      */

#define TARGET_SIOCDELMULTI    0x8932

#define TARGET_SIOCGIFINDEX    0x8933

#define TARGET_SIOCSIFPFLAGS   0x8934          /* set extended flags          */

#define TARGET_SIOCGIFPFLAGS   0x8935          /* get extended flags          */



/* Bridging control calls */

#define TARGET_SIOCGIFBR       0x8940          /* Bridging support             */