1 files changed, 61 insertions, 0 deletions
diff --git a/sandbox/linux/seccomp/ioctl.cc b/sandbox/linux/seccomp/ioctl.cc
new file mode 100644
index 0000000..4d2b3c5c5
--- /dev/null
+++ b/sandbox/linux/seccomp/ioctl.cc
@@ -0,0 +1,61 @@
+// Copyright (c) 2010 The Chromium Authors. All rights reserved.
+// Use of this source code is governed by a BSD-style license that can be
+// found in the LICENSE file.
+
+#include "debug.h"
+#include "sandbox_impl.h"
+
+namespace playground {
+
+long Sandbox::sandbox_ioctl(int d, int req, void *arg) {
+  long long tm;
+  Debug::syscall(&tm, __NR_ioctl, "Executing handler");
+  struct {
+    int       sysnum;
+    long long cookie;
+    IOCtl     ioctl_req;
+  } __attribute__((packed)) request;
+  request.sysnum        = __NR_ioctl;
+  request.cookie        = cookie();
+  request.ioctl_req.d   = d;
+  request.ioctl_req.req = req;
+  request.ioctl_req.arg = arg;
+
+  long rc;
+  SysCalls sys;
+  if (write(sys, processFdPub(), &request, sizeof(request)) !=
+      sizeof(request) ||
+      read(sys, threadFdPub(), &rc, sizeof(rc)) != sizeof(rc)) {
+    die("Failed to forward ioctl() request [sandbox]");
+  }
+  Debug::elapsed(tm, __NR_ioctl);
+  return rc;
+}
+
+bool Sandbox::process_ioctl(int parentMapsFd, int sandboxFd, int threadFdPub,
+                            int threadFd, SecureMem::Args* mem) {
+  // Read request
+  IOCtl ioctl_req;
+  SysCalls sys;
+  if (read(sys, sandboxFd, &ioctl_req, sizeof(ioctl_req)) !=sizeof(ioctl_req)){
+    die("Failed to read parameters for ioctl() [process]");
+  }
+  int rc = -EINVAL;
+  switch (ioctl_req.req) {
+    case TCGETS:
+    case TIOCGWINSZ:
+      SecureMem::sendSystemCall(threadFdPub, false, -1, mem, __NR_ioctl,
+                                ioctl_req.d, ioctl_req.req, ioctl_req.arg);
+      return true;
+    default:
+      if (Debug::isEnabled()) {
+        char buf[80];
+        sprintf(buf, "Unsupported ioctl: 0x%04X\n", ioctl_req.req);
+        Debug::message(buf);
+      }
+      SecureMem::abandonSystemCall(threadFd, rc);
+      return false;
+  }
+}
+
+} // namespace