Added test for prefetch validation

4 files changed, 207 insertions, 0 deletions

diff --git a/frida_mode/test/dynamic/GNUmakefile b/frida_mode/test/dynamic/GNUmakefile
new file mode 100644
index 00000000..f43416f7
--- /dev/null
+++ b/frida_mode/test/dynamic/GNUmakefile
@@ -0,0 +1,76 @@
+PWD:=$(shell pwd)/
+ROOT:=$(PWD)../../../
+BUILD_DIR:=$(PWD)build/
+TESTINSTR_DATA_DIR:=$(BUILD_DIR)in/
+TESTINSTR_DATA_FILE:=$(TESTINSTR_DATA_DIR)in
+AFLPP_DRIVER_DUMMY_INPUT:=$(BUILD_DIR)dummy.dat
+
+TESTINSTBIN:=$(BUILD_DIR)testinstr
+TESTINSTSRC:=$(PWD)testinstr.c
+
+TESTINSTLIB:=$(BUILD_DIR)testinstrlib.so
+TESTINSTLIBSRC:=$(PWD)testinstrlib.c
+
+QEMU_OUT:=$(BUILD_DIR)qemu-out
+FRIDA_OUT:=$(BUILD_DIR)frida-out
+
+AFLPP_FRIDA_DRIVER_HOOK_OBJ=$(ROOT)frida_mode/build/frida_hook.so
+
+ADDR_BIN:=$(ROOT)frida_mode/build/addr
+GET_SYMBOL_ADDR:=$(ROOT)frida_mode/util/get_symbol_addr.sh
+
+AFL_FRIDA_BASE_ADDR:=$(shell $(ADDR_BIN))
+AFL_FRIDA_PERSISTENT_ADDR=$(shell $(GET_SYMBOL_ADDR) $(TESTINSTBIN) testinstr $(AFL_FRIDA_BASE_ADDR))
+
+CFLAGS+=-D_GNU_SOURCE=1
+LDFLAGS+=-ldl
+
+.PHONY: all clean qemu frida
+
+all: $(TESTINSTBIN) $(TESTINSTLIB)
+	make -C $(ROOT)frida_mode/
+
+$(BUILD_DIR):
+	mkdir -p $@
+
+$(AFLPP_DRIVER_DUMMY_INPUT): | $(BUILD_DIR)
+	dd if=/dev/zero bs=1048576 count=1 of=$@
+
+$(TESTINSTR_DATA_DIR): | $(BUILD_DIR)
+	mkdir -p $@
+
+$(TESTINSTR_DATA_FILE): | $(TESTINSTR_DATA_DIR)
+	echo -n "000" > $@
+
+$(TESTINSTLIB): $(TESTINSTLIBSRC) | $(BUILD_DIR)
+	$(CC) \
+		$(CFLAGS) \
+		-shared \
+		-o $@ \
+		$(LDFLAGS) \
+		$<
+
+$(TESTINSTBIN): $(TESTINSTSRC) | $(BUILD_DIR)
+	$(CC) \
+		$(CFLAGS) \
+		-o $@ \
+		$< \
+		$(LDFLAGS) \
+		-Wl,-rpath,'$$ORIGIN'
+
+clean:
+	rm -rf $(BUILD_DIR)
+
+
+frida: $(TESTINSTBIN) $(TESTINSTR_DATA_FILE) $(AFLPP_DRIVER_DUMMY_INPUT)
+	AFL_FRIDA_PERSISTENT_HOOK=$(AFLPP_FRIDA_DRIVER_HOOK_OBJ) \
+	AFL_FRIDA_PERSISTENT_ADDR=$(AFL_FRIDA_PERSISTENT_ADDR) \
+	AFL_ENTRYPOINT=$(AFL_FRIDA_PERSISTENT_ADDR) \
+	$(ROOT)afl-fuzz \
+		-D \
+		-O \
+		-i $(TESTINSTR_DATA_DIR) \
+		-o $(FRIDA_OUT) \
+		-- \
+			$(TESTINSTBIN) $(AFLPP_DRIVER_DUMMY_INPUT)
+
diff --git a/frida_mode/test/dynamic/Makefile b/frida_mode/test/dynamic/Makefile
new file mode 100644
index 00000000..f843af19
--- /dev/null
+++ b/frida_mode/test/dynamic/Makefile
@@ -0,0 +1,19 @@
+all:
+	@echo trying to use GNU make...
+	@gmake all || echo please install GNUmake
+
+32:
+	@echo trying to use GNU make...
+	@gmake 32 || echo please install GNUmake
+
+clean:
+	@gmake clean
+
+qemu:
+	@gmake qemu
+
+frida:
+	@gmake frida
+
+debug:
+	@gmake debug
diff --git a/frida_mode/test/dynamic/testinstr.c b/frida_mode/test/dynamic/testinstr.c
new file mode 100644
index 00000000..ad26d060
--- /dev/null
+++ b/frida_mode/test/dynamic/testinstr.c
@@ -0,0 +1,98 @@
+/*
+   american fuzzy lop++ - a trivial program to test the build
+   --------------------------------------------------------
+   Originally written by Michal Zalewski
+   Copyright 2014 Google Inc. All rights reserved.
+   Copyright 2019-2022 AFLplusplus Project. All rights reserved.
+   Licensed under the Apache License, Version 2.0 (the "License");
+   you may not use this file except in compliance with the License.
+   You may obtain a copy of the License at:
+     http://www.apache.org/licenses/LICENSE-2.0
+ */
+#include <dlfcn.h>
+#include <fcntl.h>
+#include <stdbool.h>
+#include <stdio.h>
+#include <stdlib.h>
+#include <unistd.h>
+
+typedef void (*fntestinstrlib)(char *buf, int len);
+
+void testinstr(char *buf, int len) {
+  void *lib = dlopen("testinstrlib.so", RTLD_NOW);
+  if (lib == NULL) {
+    puts("Library not found");
+    abort();
+  }
+
+  fntestinstrlib fn = (fntestinstrlib)(dlsym(lib, "testinstrlib"));
+  if (fn == NULL) {
+    puts("Function not found");
+    abort();
+  }
+
+  fn(buf, len);
+}
+
+int main(int argc, char **argv) {
+  char * file;
+  int    fd = -1;
+  off_t  len;
+  char * buf = NULL;
+  size_t n_read;
+  int    result = -1;
+
+  if (argc != 2) { return 1; }
+
+  do {
+    file = argv[1];
+    printf("file: %s\n", file);
+
+    dprintf(STDERR_FILENO, "Running: %s\n", file);
+
+    fd = open(file, O_RDONLY);
+    if (fd < 0) {
+      perror("open");
+      break;
+    }
+
+    len = lseek(fd, 0, SEEK_END);
+    if (len < 0) {
+      perror("lseek (SEEK_END)");
+      break;
+    }
+
+    if (lseek(fd, 0, SEEK_SET) != 0) {
+      perror("lseek (SEEK_SET)");
+      break;
+    }
+
+    printf("len: %ld\n", len);
+
+    buf = malloc(len);
+    if (buf == NULL) {
+      perror("malloc");
+      break;
+    }
+
+    n_read = read(fd, buf, len);
+    if (n_read != len) {
+      perror("read");
+      break;
+    }
+
+    dprintf(STDERR_FILENO, "Running:    %s: (%zd bytes)\n", file, n_read);
+
+    testinstr(buf, len);
+    dprintf(STDERR_FILENO, "Done:    %s: (%zd bytes)\n", file, n_read);
+
+    result = 0;
+
+  } while (false);
+
+  if (buf != NULL) { free(buf); }
+
+  if (fd != -1) { close(fd); }
+
+  return result;
+}
diff --git a/frida_mode/test/dynamic/testinstrlib.c b/frida_mode/test/dynamic/testinstrlib.c
new file mode 100644
index 00000000..987cbf91
--- /dev/null
+++ b/frida_mode/test/dynamic/testinstrlib.c
@@ -0,0 +1,14 @@
+#include <stdio.h>
+
+void testinstrlib(char *buf, int len) {
+  if (len < 1) return;
+  buf[len] = 0;
+
+  // we support three input cases
+  if (buf[0] == '0')
+    printf("Looks like a zero to me!\n");
+  else if (buf[0] == '1')
+    printf("Pretty sure that is a one!\n");
+  else
+    printf("Neither one or zero? How quaint!\n");
+}