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|
/********************************************************/
/* ntapi: Native API core library */
/* Copyright (C) 2013--2017 Z. Gilboa */
/* Released under GPLv2 and GPLv3; see COPYING.NTAPI. */
/********************************************************/
#include <psxtypes/psxtypes.h>
#include <pemagine/pemagine.h>
#include <ntapi/nt_status.h>
#include <ntapi/nt_object.h>
#include <ntapi/nt_thread.h>
#include <ntapi/nt_process.h>
#include <ntapi/nt_string.h>
#include <ntapi/ntapi.h>
#include "ntapi_impl.h"
#define NT_PROCESS_SPAWN_FLAG_DEBUG_MASK \
(NT_PROCESS_SPAWN_FLAG_DEBUG_EXECUTION \
| NT_PROCESS_SPAWN_FLAG_DEBUG_SUSPENDED)
static int32_t __stdcall __tt_spawn_return(
nt_runtime_data_block * rtblock,
void * hprocess,
void * hthread,
int32_t status)
{
nt_runtime_data * rtdata;
rtdata = (nt_runtime_data *)rtblock->addr;
if (hprocess) {
__ntapi->zw_terminate_process(
hprocess,status);
__ntapi->zw_close(hprocess);
__ntapi->zw_close(hthread);
}
if (rtdata->hready)
__ntapi->zw_close(
rtdata->hready);
__ntapi->zw_free_virtual_memory(
NT_CURRENT_PROCESS_HANDLE,
&rtblock->addr,
&rtblock->size,
NT_MEM_RELEASE);
return status;
}
int32_t __stdcall __ntapi_tt_spawn_native_process(nt_spawn_process_params * sparams)
{
int32_t status;
nt_create_process_params cparams;
nt_tty_session_info session;
nt_runtime_data_block rtblock;
nt_runtime_data_block crtblock;
nt_runtime_data * rtctx;
nt_runtime_data * rdata;
nt_unicode_string * imgname;
nt_peb * peb;
char * patharg;
void * hat;
void * hfile;
char ** parg;
char ** rargv;
char ** renvp;
wchar16_t ** pwarg;
wchar16_t * wch;
void * hchild[2];
wchar16_t * imgbuf;
uint32_t fsuspended;
size_t buflen;
size_t written;
char * raddr;
size_t rsize;
/* rtctx (convenience) */
rtctx = sparams->rtctx;
/* validation */
if (!sparams->himage && !sparams->patharg)
return NT_STATUS_OBJECT_PATH_INVALID;
if (rtctx->argc || rtctx->argv || rtctx->envc || rtctx->envp)
return NT_STATUS_INVALID_PARAMETER;
if (rtctx->hready || rtctx->hsession)
return NT_STATUS_INVALID_PARAMETER_MIX;
if (!(peb = (nt_peb *)pe_get_peb_address()))
return NT_STATUS_INTERNAL_ERROR;
if (!peb->process_params)
return NT_STATUS_INTERNAL_ERROR;
/* hat */
hat = (sparams->hroot && (sparams->argv[0][0] == '/'))
? sparams->hroot
: rtctx->hcwd
? rtctx->hcwd
: peb->process_params->cwd_handle;
/* patharg */
patharg = sparams->patharg
? (sparams->patharg[0] == '/')
? (sparams->patharg[1] == '?')
? &sparams->patharg[0]
: &sparams->patharg[1]
: &sparams->patharg[0]
: 0;
/* rtblock, rdata */
rtblock.addr = 0;
rtblock.size = 0x40000;
rtblock.remote_addr = 0;
rtblock.remote_size = 0;
rtblock.flags = 0;
if ((status = __ntapi->zw_allocate_virtual_memory(
NT_CURRENT_PROCESS_HANDLE,
&rtblock.addr,0,
&rtblock.size,
NT_MEM_COMMIT,
NT_PAGE_READWRITE)))
return status;
__ntapi->tt_aligned_block_memset(
rtblock.addr,0,rtblock.size);
__ntapi->tt_aligned_block_memcpy(
(uintptr_t *)(rdata = (nt_runtime_data *)rtblock.addr),
(const uintptr_t *)rtctx,
sizeof(*rtctx));
/* abi */
if (!(__ntapi->tt_guid_compare(&rdata->abi,&(nt_guid)NT_PROCESS_GUID_UNSPEC)))
__ntapi->tt_guid_copy(
&rdata->abi,
&(nt_guid)NT_PROCESS_GUID_RTDATA);
/* imgbuf */
imgbuf = (wchar16_t *)rtblock.addr;
imgbuf += 0x30000 / sizeof(*imgbuf);
/* hfile */
if (sparams->himage)
hfile = sparams->himage;
else if ((status = __ntapi_tt_open_file_utf8(
&hfile,hat,patharg,1,
imgbuf,0x2000)))
return status;
/* imgname */
if ((status = __ntapi->zw_query_object(
hfile,
NT_OBJECT_NAME_INFORMATION,
imgbuf,0x10000,
&(uint32_t){0})))
return __tt_spawn_return(
&rtblock,0,0,status);
imgname = (nt_unicode_string *)imgbuf;
/* argv, envp */
buflen = rtblock.size;
buflen -= sizeof(*rdata);
if ((status = __ntapi->tt_array_copy_utf8(
&rdata->argc,
(const char **)sparams->argv,
(const char **)sparams->envp,
sparams->interp,
sparams->optarg,
sparams->script,
rtblock.addr,
rdata->buffer,
buflen,&written)))
return __tt_spawn_return(
&rtblock,0,0,status);
rdata->argv = (char **)&((nt_runtime_data *)0)->buffer;
rdata->envp = rdata->argv + rdata->argc + 1;
rdata->wargv = (wchar16_t **)rdata->buffer;
rdata->wargv += written / sizeof(wchar16_t **) + 1;
rdata->wenvp = rdata->wargv + rdata->argc + 1;
rargv = rdata->argv + ((uintptr_t)rtblock.addr / sizeof(char *));
renvp = rdata->envp + ((uintptr_t)rtblock.addr / sizeof(char *));
for (rdata->envc=0, parg=sparams->envp; *parg; parg++)
rdata->envc++;
pwarg = rdata->wenvp + rdata->envc + 1;
wch = (wchar16_t *)pwarg;
if ((written == (uintptr_t)wch - (uintptr_t)rdata) > rtblock.size)
return __tt_spawn_return(
&rtblock,0,0,NT_STATUS_BUFFER_TOO_SMALL);
buflen = rtblock.size;
buflen -= written;
if ((status = __ntapi->tt_array_convert_utf8_to_utf16(
rargv,
rdata->wargv,
rdata,wch,
buflen,&written)))
return __tt_spawn_return(
&rtblock,0,0,status);
wch += written/sizeof(wchar16_t);
buflen -= written;
if ((status = __ntapi->tt_array_convert_utf8_to_utf16(
renvp,
rdata->wenvp,
rdata,wch,
buflen,&written)))
return __tt_spawn_return(
&rtblock,0,0,status);
rdata->wargv -= (uintptr_t)rtblock.addr / sizeof(wchar16_t *);
rdata->wenvp -= (uintptr_t)rtblock.addr / sizeof(wchar16_t *);
wch += written/sizeof(wchar16_t);
buflen -= written;
if (buflen < 0x10000)
return __tt_spawn_return(
&rtblock,0,0,NT_STATUS_BUFFER_TOO_SMALL);
/* session */
if (sparams->hready) {
if ((status = __ntapi->zw_duplicate_object(
NT_CURRENT_PROCESS_HANDLE,
sparams->hready,
NT_CURRENT_PROCESS_HANDLE,
&rdata->hready,
0,0,
NT_DUPLICATE_SAME_ACCESS|NT_DUPLICATE_SAME_ATTRIBUTES)))
return __tt_spawn_return(
&rtblock,0,0,status);
} else {
if ((status = __ntapi->tt_create_inheritable_event(
&rdata->hready,
NT_NOTIFICATION_EVENT,
NT_EVENT_NOT_SIGNALED)))
return __tt_spawn_return(
&rtblock,0,0,status);
}
/* process flags */
if (sparams->processflags & NT_PROCESS_CREATE_FLAGS_CREATE_THREAD_SUSPENDED)
fsuspended = NT_CREATE_SUSPENDED;
else if (sparams->threadflags & NT_CREATE_SUSPENDED)
fsuspended = NT_CREATE_SUSPENDED;
else if (sparams->spawnflags & NT_PROCESS_SPAWN_FLAG_DEBUG_SUSPENDED)
fsuspended = NT_CREATE_SUSPENDED;
else if (sparams->spawnflags & NT_PROCESS_SPAWN_FLAG_DEBUG_EXECUTION)
fsuspended = NT_CREATE_SUSPENDED;
/* cparams */
__ntapi->tt_aligned_block_memset(
&cparams,0,sizeof(cparams));
__ntapi->tt_generic_memcpy(
&crtblock,&rtblock,sizeof(rtblock));
cparams.image_name = imgname->buffer;
cparams.creation_flags_process = NT_PROCESS_CREATE_FLAGS_INHERIT_HANDLES;
cparams.creation_flags_thread = NT_PROCESS_CREATE_FLAGS_CREATE_THREAD_SUSPENDED;
crtblock.size = (size_t)wch - (size_t)rdata;
crtblock.size += 0xFFFF;
crtblock.size |= 0xFFFF;
crtblock.size ^= 0xFFFF;
cparams.rtblock = &crtblock;
/* hoppla */
if ((status = __ntapi->tt_create_native_process(&cparams)))
return __tt_spawn_return(
&rtblock,0,0,status);
/* tidy up */
if (!sparams->himage)
__ntapi->zw_close(hfile);
/* debug */
if (sparams->spawnflags & NT_PROCESS_SPAWN_FLAG_DEBUG_MASK)
if ((status = __ntapi->tt_debug_create_attach_object(
&sparams->hdbgobj,
cparams.hprocess,
NT_DEBUG_KILL_ON_EXIT)))
return __tt_spawn_return(
&rtblock,
cparams.hprocess,
cparams.hthread,
status);
/* additional context */
if (rtctx->ctx_addr) {
rdata->ctx_addr = 0;
rdata->ctx_commit = rtctx->ctx_size;
rdata->ctx_commit += (__NT_INTERNAL_PAGE_SIZE - 1);
rdata->ctx_commit |= (__NT_INTERNAL_PAGE_SIZE - 1);
rdata->ctx_commit ^= (__NT_INTERNAL_PAGE_SIZE - 1);
if ((status = __ntapi->zw_allocate_virtual_memory(
cparams.hprocess,
&rdata->ctx_addr,0,
&rdata->ctx_commit,
NT_MEM_COMMIT,
NT_PAGE_READWRITE)))
return __tt_spawn_return(
&rtblock,
cparams.hprocess,
cparams.hthread,
status);
if ((status = __ntapi->zw_write_virtual_memory(
cparams.hprocess,
rdata->ctx_addr,
rtctx->ctx_addr,
rtctx->ctx_size,
&rdata->ctx_size)))
return __tt_spawn_return(
&rtblock,
cparams.hprocess,
cparams.hthread,
status);
raddr = crtblock.remote_addr;
raddr += __offsetof(nt_runtime_data,ctx_addr);
rsize = __offsetof(nt_runtime_data,ctx_offset);
rsize -= __offsetof(nt_runtime_data,ctx_addr);
if ((status = __ntapi->zw_write_virtual_memory(
cparams.hprocess,
raddr,(char *)&rdata->ctx_addr,
rsize,&rsize)))
return __tt_spawn_return(
&rtblock,
cparams.hprocess,
cparams.hthread,
status);
}
/* tty session (optional) */
if (sparams->hsession) {
if ((status = __ntapi->tty_client_process_register(
sparams->hsession,
cparams.pbi.unique_process_id,
0,NT_TTY_INHERIT_HANDLES,0)))
return __tt_spawn_return(
&rtblock,
cparams.hprocess,
cparams.hthread,
status);
session.pid = rtctx->alt_cid_self.pid;
session.pgid = rtctx->alt_cid_self.pgid;
session.sid = rtctx->alt_cid_self.sid;
session.syspid = (uint32_t)cparams.pbi.unique_process_id;
if ((status = __ntapi->tty_client_session_set(
sparams->hsession,
&session)))
return __tt_spawn_return(
&rtblock,
cparams.hprocess,
cparams.hthread,
status);
}
/* output */
sparams->hprocess = cparams.hprocess;
sparams->hthread = cparams.hthread;
sparams->rdata = crtblock.remote_addr;
sparams->cid.process_id = cparams.pbi.unique_process_id;
sparams->cid.thread_id = cparams.cid.thread_id;
__ntapi->tt_generic_memcpy(
&sparams->pbi,
&cparams.pbi,
sizeof(nt_pbi));
/* create suspended? */
if (fsuspended)
return __tt_spawn_return(
&rtblock,0,0,NT_STATUS_SUCCESS);
/* tada */
if ((status = __ntapi->zw_resume_thread(cparams.hthread,0)))
return __tt_spawn_return(
&rtblock,
cparams.hprocess,
cparams.hthread,
status);
/* hready */
hchild[1] = cparams.hprocess;
hchild[0] = rdata->hready;
__ntapi->zw_wait_for_multiple_objects(
2,hchild,
NT_WAIT_ANY,
NT_SYNC_NON_ALERTABLE,
sparams->timeout);
if ((status = __ntapi->zw_query_event(
rdata->hready,
NT_EVENT_BASIC_INFORMATION,
&sparams->eready,
sizeof(sparams->eready),
&(size_t){0})))
return __tt_spawn_return(
&rtblock,
cparams.hprocess,
cparams.hthread,
status);
/* all done */
return __tt_spawn_return(
&rtblock,0,0,NT_STATUS_SUCCESS);
}
|
