net: fix vnet_hdr handling in solaris tap code

Print an error if the user specifies vnet_hdr=1 on the cmdline. Signed-off-by: Mark McLoughlin <[email protected]> Signed-off-by: Anthony Liguori <[email protected]>
kvaneesh · Dec 3, 2009 · f5c5e38 · f5c5e38
1 parent df6c2a0
commit f5c5e38
Showing 1 changed file with 11 additions and 0 deletions.
diff --git a/net/tap-solaris.c b/net/tap-solaris.c
@@ -180,6 +180,17 @@ int tap_open(char *ifname, int ifname_size, int *vnet_hdr, int vnet_hdr_required
        return -1;
     }
     pstrcpy(ifname, ifname_size, dev);
+    if (*vnet_hdr) {
+        /* Solaris doesn't have IFF_VNET_HDR */
+        *vnet_hdr = 0;
+
+        if (vnet_hdr_required && !*vnet_hdr) {
+            qemu_error("vnet_hdr=1 requested, but no kernel "
+                       "support for IFF_VNET_HDR available");
+            close(fd);
+            return -1;
+        }
+    }
     fcntl(fd, F_SETFL, O_NONBLOCK);
     return fd;
 }