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Enhance wasm loader to fix some security issues (#91)

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* Implement memory profiler, optimize memory usage, modify code indent

* Implement memory.grow and limit heap space base offset to 1G; modify iwasm build type to Release and 64 bit by default

* Add a new extension library: connection

* Fix bug of reading magic number and version in big endian platform

* Re-org platform APIs: move most platform APIs from iwasm to shared-lib

* Enhance wasm loader to fix some security issues
This commit is contained in:
wenyongh
2019-08-08 16:53:56 +08:00
committed by GitHub
parent 3b19306869
commit 3f15fb3424
5 changed files with 178 additions and 63 deletions
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23
core/iwasm/lib/native/libc/libc_wrapper.c
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@ -846,6 +846,22 @@ nullFunc_X_wrapper(int32 code)
wasm_runtime_set_exception(module_inst, buf);
}
/*#define ENABLE_SPEC_TEST 1*/
#ifdef ENABLE_SPEC_TEST
static void
print_i32_wrapper(int i32)
{
printf("%d\n", i32);
}
static void
print_wrapper(int i32)
{
printf("%d\n", i32);
}
#endif
/* TODO: add function parameter/result types check */
#define REG_NATIVE_FUNC(module_name, func_name) \
{ #module_name, #func_name, func_name##_wrapper }
@ -857,6 +873,10 @@ typedef struct WASMNativeFuncDef {
} WASMNativeFuncDef;
static WASMNativeFuncDef native_func_defs[] = {
#ifdef ENABLE_SPEC_TEST
REG_NATIVE_FUNC(spectest, print_i32),
REG_NATIVE_FUNC(spectest, print),
#endif
REG_NATIVE_FUNC(env, _printf),
REG_NATIVE_FUNC(env, _sprintf),
REG_NATIVE_FUNC(env, _snprintf),
@ -927,6 +947,9 @@ typedef struct WASMNativeGlobalDef {
} WASMNativeGlobalDef;
static WASMNativeGlobalDef native_global_defs[] = {
#ifdef ENABLE_SPEC_TEST
{ "spectest", "global_i32", .global_data.u32 = 0 },
#endif
{ "env", "STACKTOP", .global_data.u32 = 0 },
{ "env", "STACK_MAX", .global_data.u32 = 0 },
{ "env", "ABORT", .global_data.u32 = 0 },