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-rw-r--r--src/process/ntapi_tt_spawn_foreign_process.c44
1 files changed, 24 insertions, 20 deletions
diff --git a/src/process/ntapi_tt_spawn_foreign_process.c b/src/process/ntapi_tt_spawn_foreign_process.c
index 9867b1f..03bf83f 100644
--- a/src/process/ntapi_tt_spawn_foreign_process.c
+++ b/src/process/ntapi_tt_spawn_foreign_process.c
@@ -14,6 +14,10 @@
#include <ntapi/ntapi.h>
#include "ntapi_impl.h"
+#define __SPAWN_FOREIGN_PROCESS_RUNTIME_BLOCK_ALLOC_SIZE (0x50000)
+#define __SPAWN_FOREIGN_PROCESS_RUNTIME_BLOCK_BUFFER_SIZE (0x30000)
+#define __SPAWN_FOREIGN_PROCESS_RUNTIME_BLOCK_VECTOR_SIZE (0x10000)
+#define __SPAWN_FOREIGN_PROCESS_RUNTIME_BLOCK_IMGBUF_SIZE (0x10000)
#define NT_PROCESS_SPAWN_FLAG_DEBUG_MASK \
(NT_PROCESS_SPAWN_FLAG_DEBUG_EXECUTION \
@@ -69,7 +73,6 @@ int32_t __stdcall __ntapi_tt_spawn_foreign_process(nt_spawn_process_params * spa
void * hfile;
uint32_t written;
int32_t envc;
- size_t buflen;
wchar16_t * imgbuf;
wchar16_t * wenv;
wchar16_t ** wenvp;
@@ -133,7 +136,7 @@ int32_t __stdcall __ntapi_tt_spawn_foreign_process(nt_spawn_process_params * spa
/* rtblock, rdata */
rtblock.addr = 0;
- rtblock.size = 0x50000;
+ rtblock.size = __SPAWN_FOREIGN_PROCESS_RUNTIME_BLOCK_ALLOC_SIZE;
rtblock.remote_addr = 0;
rtblock.remote_size = 0;
rtblock.flags = 0;
@@ -154,22 +157,21 @@ int32_t __stdcall __ntapi_tt_spawn_foreign_process(nt_spawn_process_params * spa
envc++;
wenvp = rtblock.addr;
- wenvp += 0x40000 / sizeof(*wenvp);
+ wenvp += __SPAWN_FOREIGN_PROCESS_RUNTIME_BLOCK_BUFFER_SIZE / sizeof(*wenvp);
wenv = (wchar16_t *)&wenvp[++envc];
- buflen = 0x10000;
- buflen -= sizeof(*wenvp) * envc;
-
if ((status = __ntapi->tt_array_convert_utf8_to_utf16(
sparams->envp,
wenvp,0,wenv,
- buflen,&(size_t){0})))
+ __SPAWN_FOREIGN_PROCESS_RUNTIME_BLOCK_VECTOR_SIZE,
+ &(size_t){0})))
return __tt_spawn_return(
&rtblock,0,0,status);
/* imgbuf */
- imgbuf = (wchar16_t *)rtblock.addr;
- imgbuf += 0x30000 / sizeof(*imgbuf);
+ imgbuf = rtblock.addr;
+ imgbuf += __SPAWN_FOREIGN_PROCESS_RUNTIME_BLOCK_BUFFER_SIZE / sizeof(wchar16_t);
+ imgbuf += __SPAWN_FOREIGN_PROCESS_RUNTIME_BLOCK_VECTOR_SIZE / sizeof(wchar16_t);
/* hfile */
if (sparams->himage)
@@ -177,22 +179,23 @@ int32_t __stdcall __ntapi_tt_spawn_foreign_process(nt_spawn_process_params * spa
else if ((status = __ntapi_tt_open_file_utf8(
&hfile,hat,patharg,1,
- imgbuf,0x2000)))
+ imgbuf,__SPAWN_FOREIGN_PROCESS_RUNTIME_BLOCK_IMGBUF_SIZE)))
return status;
/* imgname */
if ((status = __ntapi->zw_query_object(
hfile,
NT_OBJECT_NAME_INFORMATION,
- imgbuf,0x10000,&written)))
+ imgbuf,__SPAWN_FOREIGN_PROCESS_RUNTIME_BLOCK_VECTOR_SIZE,
+ &written)))
return __tt_spawn_return(
&rtblock,0,0,status);
imgname = (nt_unicode_string *)imgbuf;
/* argv --> cmdline (utf8) */
- ch_arg = (char *)rtblock.addr;
- ch_cap = ch_arg + 0x10000;
+ ch_arg = rtblock.addr;
+ ch_cap = ch_arg + __SPAWN_FOREIGN_PROCESS_RUNTIME_BLOCK_VECTOR_SIZE;
for (parg=sparams->argv; *parg; parg++) {
for (ch=*parg, fquote=0; *ch && !fquote; ch++)
@@ -251,13 +254,13 @@ int32_t __stdcall __ntapi_tt_spawn_foreign_process(nt_spawn_process_params * spa
ch_arg[-1] = 0;
/* cmdline (utf8) --> cmdline (utf16) */
- cmdline = (wchar16_t *)rtblock.addr;
- cmdline += (0x10000 / sizeof(wchar16_t));
+ cmdline = rtblock.addr;
+ cmdline += __SPAWN_FOREIGN_PROCESS_RUNTIME_BLOCK_VECTOR_SIZE / sizeof(wchar16_t);
- uparams.src = (unsigned char *)rtblock.addr;
+ uparams.src = rtblock.addr;
uparams.src_size_in_bytes = 0;
uparams.dst = cmdline;
- uparams.dst_size_in_bytes = 0x10000 - sizeof(wchar16_t);
+ uparams.dst_size_in_bytes = __SPAWN_FOREIGN_PROCESS_RUNTIME_BLOCK_VECTOR_SIZE - sizeof(wchar16_t);
uparams.code_points = 0;
uparams.bytes_written = 0;
@@ -278,13 +281,14 @@ int32_t __stdcall __ntapi_tt_spawn_foreign_process(nt_spawn_process_params * spa
nt_cmd_line.buffer = cmdline;
/* nt_image */
- nt_image.buffer = (wchar16_t *)rtblock.addr;
- nt_image.buffer += (0x20000 / sizeof(wchar16_t));
+ nt_image.buffer = rtblock.addr;
+ nt_image.buffer += __SPAWN_FOREIGN_PROCESS_RUNTIME_BLOCK_VECTOR_SIZE / sizeof(wchar16_t);
+ nt_image.buffer += __SPAWN_FOREIGN_PROCESS_RUNTIME_BLOCK_VECTOR_SIZE / sizeof(wchar16_t);
uparams.src = (unsigned char *)sparams->argv[0];
uparams.src_size_in_bytes = 0;
uparams.dst = nt_image.buffer;
- uparams.dst_size_in_bytes = 0x10000 - sizeof(wchar16_t);
+ uparams.dst_size_in_bytes = __SPAWN_FOREIGN_PROCESS_RUNTIME_BLOCK_VECTOR_SIZE - sizeof(wchar16_t);
uparams.code_points = 0;
uparams.bytes_written = 0;