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[3/4] linux-user: Add support the SIOCSIFPFLAGS and SIOCGIFPFLAGS ioctls

Message ID 1556040926-23931-4-git-send-email-aleksandar.markovic@rt-rk.com
State New
Headers show
Series linux-user: A set of misc patches for 4.1 | expand

Commit Message

Aleksandar Markovic April 23, 2019, 5:35 p.m. UTC 
From: Neng Chen <nchen@wavecomp.com>

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

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

  #define SIOCSIFPFLAGS 0x8934

The ioctls set and get field ifr_flags of type short in the structure
ifreq. Such functionality in QEMU is achieved using MK_STRUCT() and
MK_PTR() macros with an appropriate argument.

Signed-off-by: Neng Chen <nchen@wavecomp.com>
Signed-off-by: Aleksandar Markovic <amarkovic@wavecomp.com>
Message-Id: <1554839486-3527-1-git-send-email-aleksandar.markovic@rt-rk.com>
---
 linux-user/ioctls.h       | 2 ++
 linux-user/syscall_defs.h | 2 ++
 2 files changed, 4 insertions(+)
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Patch

diff --git a/linux-user/ioctls.h b/linux-user/ioctls.h
index c37adc5..76375df 100644
--- a/linux-user/ioctls.h
+++ b/linux-user/ioctls.h
@@ -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)))
diff --git a/linux-user/syscall_defs.h b/linux-user/syscall_defs.h
index 2941231..8904d35 100644
--- a/linux-user/syscall_defs.h
+++ b/linux-user/syscall_defs.h
@@ -781,6 +781,8 @@  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             */