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Initial guest-to-host trampoline generation

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This commit is contained in:
Luke Street
2025-10-30 02:23:09 -06:00
parent 9367f003c5
commit 55a62a27c9
85 changed files with 1750 additions and 1807 deletions
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19
dll/bcrypt.cpp
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@@ -1,15 +1,16 @@
#include "bcrypt.h"
#include "common.h"
#include "context.h"
#include "errors.h"
#include "modules.h"
#include <cstring>
#include <sys/random.h>
#include <vector>
namespace {
typedef PVOID BCRYPT_ALG_HANDLE;
constexpr ULONG BCRYPT_RNG_USE_ENTROPY_IN_BUFFER = 0x00000001;
constexpr ULONG BCRYPT_USE_SYSTEM_PREFERRED_RNG = 0x00000002;
@@ -33,7 +34,7 @@ bool fillWithSystemRandom(PUCHAR buffer, size_t length) {
namespace bcrypt {
NTSTATUS WIN_FUNC BCryptGenRandom(BCRYPT_ALG_HANDLE hAlgorithm, PUCHAR pbBuffer, ULONG cbBuffer, ULONG dwFlags) {
NTSTATUS WINAPI BCryptGenRandom(BCRYPT_ALG_HANDLE hAlgorithm, PUCHAR pbBuffer, ULONG cbBuffer, ULONG dwFlags) {
HOST_CONTEXT_GUARD();
DEBUG_LOG("BCryptGenRandom(%p, %p, %lu, %lu)\n", hAlgorithm, pbBuffer, cbBuffer, dwFlags);
if (pbBuffer == nullptr && cbBuffer != 0)
@@ -66,7 +67,7 @@ NTSTATUS WIN_FUNC BCryptGenRandom(BCRYPT_ALG_HANDLE hAlgorithm, PUCHAR pbBuffer,
return STATUS_SUCCESS;
}
BOOL WIN_FUNC ProcessPrng(PBYTE pbData, SIZE_T cbData) {
BOOL WINAPI ProcessPrng(PBYTE pbData, SIZE_T cbData) {
HOST_CONTEXT_GUARD();
DEBUG_LOG("ProcessPrng(%p, %lu)\n", pbData, cbData);
if (pbData == nullptr && cbData != 0)
@@ -76,13 +77,7 @@ BOOL WIN_FUNC ProcessPrng(PBYTE pbData, SIZE_T cbData) {
} // namespace bcrypt
static void *resolveByName(const char *name) {
if (strcmp(name, "BCryptGenRandom") == 0)
return (void *)bcrypt::BCryptGenRandom;
if (strcmp(name, "ProcessPrng") == 0)
return (void *)bcrypt::ProcessPrng;
return nullptr;
}
#include "bcrypt_trampolines.h"
extern const wibo::ModuleStub lib_bcrypt = {
(const char *[]){
@@ -90,6 +85,6 @@ extern const wibo::ModuleStub lib_bcrypt = {
"bcryptprimitives",
nullptr,
},
resolveByName,
bcrypt_trampoline_by_name,
nullptr,
};