[Qemu-devel] [PATCH 1/2 v2] qemu-user: Impl. setsockopt(SO_BINDTODEVICE)

[Joakim Tjernlund]

---
 linux-user/syscall.c | 19 +++++++++++++++++++
 1 file changed, 19 insertions(+)

diff --git a/linux-user/syscall.c b/linux-user/syscall.c
index 57c1664..5a07d9c 100644
--- a/linux-user/syscall.c
+++ b/linux-user/syscall.c
@@ -1497,6 +1497,25 @@ set_timeout:
                 unlock_user_struct(tfprog, optval_addr, 1);
                 return ret;
         }
+       case TARGET_SO_BINDTODEVICE:
+       {
+               char *dev_ifname, *addr_ifname;
+
+               dev_ifname = lock_user(VERIFY_READ, optval_addr, optlen, 1);
+               if (!dev_ifname) {
+                       return -TARGET_EFAULT;
+               }
+               if (optlen > IFNAMSIZ - 1) {
+                       optlen = IFNAMSIZ - 1;
+               }
+               optname = SO_BINDTODEVICE;
+               addr_ifname = alloca(IFNAMSIZ);
+               memcpy(addr_ifname, dev_ifname, IFNAMSIZ);
+               addr_ifname[IFNAMSIZ - 1] = 0;
+               ret = get_errno(setsockopt(sockfd, level, optname, addr_ifname, 
optlen));
+               unlock_user (dev_ifname, optval_addr, 0);
+               return ret;
+       }
             /* Options with 'int' argument.  */
         case TARGET_SO_DEBUG:
                optname = SO_DEBUG;
-- 
1.8.5.5