Index: src/include/minsfi_priv.h |
diff --git a/src/include/minsfi_priv.h b/src/include/minsfi_priv.h |
new file mode 100644 |
index 0000000000000000000000000000000000000000..5702e823eb65a32b48877e8e042908fc376df3d7 |
--- /dev/null |
+++ b/src/include/minsfi_priv.h |
@@ -0,0 +1,76 @@ |
+/* |
+ * Copyright (c) 2014 The Native Client Authors. All rights reserved. |
+ * Use of this source code is governed by a BSD-style license that can be |
+ * found in the LICENSE file. |
+ */ |
+ |
+#ifndef NATIVE_CLIENT_SRC_INCLUDE_MINSFI_PRIV_H_ |
+#define NATIVE_CLIENT_SRC_INCLUDE_MINSFI_PRIV_H_ |
+ |
+#include <stdbool.h> |
+#include <stdlib.h> |
+#include <stdint.h> |
+#include <unistd.h> |
+ |
+typedef struct { |
+ uint32_t ptr_size; /* size of sandboxed pointers in bits */ |
+ uint32_t dataseg_offset; |
+ uint32_t dataseg_size; |
+ const char *dataseg_template; |
+} MinsfiManifest; |
+ |
+typedef struct { |
+ uint32_t offset; |
+ uint32_t length; |
+} MinsfiMemoryRegion; |
+ |
+typedef struct { |
+ MinsfiMemoryRegion dataseg; |
+ MinsfiMemoryRegion heap; |
+ MinsfiMemoryRegion stack; |
+} MinsfiMemoryLayout; |
+ |
+typedef struct { |
+ char *mem_base; |
+ uint64_t mem_alloc_size; |
+ uint32_t ptr_mask; |
+ MinsfiMemoryLayout mem_layout; |
+} MinsfiSandbox; |
+ |
+/* |
+ * Computes the boundaries of the individual regions of the sandbox's address |
+ * subspace and stores them into the given minsfi_layout data structure. |
+ * Returns FALSE if a layout cannot be created for the given parameters. |
+ */ |
+bool MinsfiGenerateMemoryLayout(const MinsfiManifest *manifest, |
+ uint32_t page_size, MinsfiMemoryLayout *layout); |
+ |
+/* |
+ * This function initializes the address subspace of the sandbox. Protection of |
+ * the pages allocated to the data segment, heap and stack is set to read/write, |
+ * the rest is no-access. The data segment template is copied into the sandbox. |
+ * |
+ * The function returns TRUE if the initialization was successful, and stores |
+ * information about the sandbox into the given MinsfiSandbox struct. |
+ */ |
+bool MinsfiInitSandbox(const MinsfiManifest *manifest, MinsfiSandbox *sb); |
+ |
+/* |
+ * Unmaps a memory region given by the provided base and the declared pointer |
+ * size of the sandbox. The function returns FALSE if munmap() fails. |
+ */ |
+bool MinsfiUnmapSandbox(const MinsfiSandbox *sb); |
+ |
+/* |
+ * Returns information about the active sandbox, or NULL if there is no |
+ * initialized sandbox at the moment. |
+ */ |
+const MinsfiSandbox *MinsfiGetActiveSandbox(void); |
+ |
+/* |
+ * Sets the sandbox which all trampolines will refer to. Internally copies the |
+ * data structure to its own storage. |
+ */ |
+void MinsfiSetActiveSandbox(const MinsfiSandbox *sb); |
+ |
+#endif // NATIVE_CLIENT_SRC_INCLUDE_MINSFI_PRIV_H_ |