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/*********************************************************/
/* ptycon: a pty-console bridge */
/* Copyright (C) 2016 Z. Gilboa */
/* Released under GPLv2 and GPLv3; see COPYING.PTYCON. */
/*********************************************************/
#include <psxtypes/psxtypes.h>
#include <ntcon/ntcon.h>
#include <ntapi/ntapi.h>
#include <ptycon/ptycon.h>
#include "ptycon_driver_impl.h"
static int32_t __stdcall ptyc_spawn_return(
nt_runtime_data_block * rtblock,
int32_t status)
{
nt_runtime_data * rtdata;
rtdata = (nt_runtime_data *)rtblock;
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;
}
int __stdcall ptyc_spawn(struct ptyc_driver_ctx * dctx)
{
int32_t status;
char * patharg;
void * hchild[2];
nt_create_process_params params;
struct ptyc_driver_ctx_impl * ictx;
struct ptyc_client_ctx * clctx;
nt_tty_session_info session;
nt_runtime_data_block rtblock;
nt_runtime_data * rdata;
nt_rtdata * self;
nt_peb * peb;
void * hat;
void * hfile;
char ** rargv;
char ** renvp;
wchar16_t ** pwarg;
wchar16_t * wch;
nt_unicode_string * imgname;
uint32_t written;
uintptr_t imgbuf[8192/sizeof(uintptr_t)];
/* init */
if (!(ictx = ptyc_get_driver_ictx(dctx)))
return NT_STATUS_INVALID_HANDLE;
if (!dctx->cctx->eargv)
return NT_STATUS_SUCCESS;
if ((status = ntapi->tt_get_runtime_data(&self,0)))
return status;
clctx = &ictx->clctx;
/* hat */
if (!(peb = (nt_peb *)pe_get_peb_address()))
return NT_STATUS_INTERNAL_ERROR;
if (!peb->process_params)
return NT_STATUS_INTERNAL_ERROR;
hat = (dctx->cctx->hroot && (dctx->cctx->eargv[0][0] == '/'))
? dctx->cctx->hroot
: self->hcwd
? self->hcwd
: peb->process_params->cwd_handle;
patharg = (dctx->cctx->eargv[0][0] == '/')
? &dctx->cctx->eargv[0][1]
: &dctx->cctx->eargv[0][0];
/* hfile */
if ((status = ptyc_open_file(&hfile,hat,patharg,true)))
return status;
/* rtblock */
rtblock.addr = 0;
rtblock.size = 0x10000;
rtblock.remote_addr = 0;
rtblock.remote_size = 0;
rtblock.flags = 0;
if ((status = ntapi->zw_allocate_virtual_memory(
self->hprocess_self,
&rtblock.addr,0,
&rtblock.size,
NT_MEM_COMMIT,
NT_PAGE_READWRITE)))
return status;
ntapi->tt_aligned_block_memset(
rtblock.addr,0,rtblock.size);
if ((status = ntapi->zw_query_object(
hfile,
NT_OBJECT_NAME_INFORMATION,
imgbuf,sizeof(imgbuf),
&written)))
return ptyc_spawn_return(
&rtblock,status);
imgname = (nt_unicode_string *)imgbuf;
rdata = (nt_runtime_data *)rtblock.addr;
/* argv, envp */
if ((status = ntapi->tt_array_copy_utf8(
&rdata->argc,
(const char **)dctx->cctx->eargv,
(const char **)self->envp,
0,0,0,
rtblock.addr,
rdata->buffer,
rtblock.size - sizeof(*rdata),
&rtblock.remote_size)))
return ptyc_spawn_return(
&rtblock,status);
rdata->argv = (char **)&((nt_runtime_data *)0)->buffer;
rdata->envp = rdata->argv + rdata->argc + 1;
rdata->wargv = (wchar16_t **)(rdata->buffer + (rtblock.remote_size / sizeof(uintptr_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 *));
pwarg = rdata->wenvp + self->envc + 1;
wch = (wchar16_t *)pwarg;
if ((status = ntapi->tt_array_convert_utf8_to_utf16(
rargv,
rdata->wargv,
rdata,
wch,
rtblock.size - sizeof(wchar16_t)*(wch-(wchar16_t *)rdata->buffer),
&rtblock.remote_size)))
return ptyc_spawn_return(
&rtblock,status);
wch += rtblock.remote_size/sizeof(wchar16_t);
if ((status = ntapi->tt_array_convert_utf8_to_utf16(
renvp,
rdata->wenvp,
rdata,
wch,
rtblock.size - sizeof(wchar16_t)*(wch-(wchar16_t *)rdata->buffer),
&rtblock.remote_size)))
return ptyc_spawn_return(
&rtblock,status);
rdata->wargv -= (uintptr_t)rtblock.addr / sizeof(wchar16_t *);
rdata->wenvp -= (uintptr_t)rtblock.addr / sizeof(wchar16_t *);
/* session */
if ((status = ntapi->tt_create_inheritable_event(
&rdata->hready,
NT_NOTIFICATION_EVENT,
NT_EVENT_NOT_SIGNALED)))
return ptyc_spawn_return(
&rtblock,status);
ntapi->tt_aligned_block_memcpy(
(uintptr_t *)&rdata->cid_parent,
(uintptr_t *)&self->cid_self,
sizeof(nt_cid));
rdata->hroot = dctx->cctx->hroot;
rdata->hcwd = self->hcwd
? self->hcwd
: peb->process_params->cwd_handle;
rdata->srv_keys[0] = self->srv_keys[0];
rdata->srv_keys[1] = self->srv_keys[1];
rdata->srv_keys[2] = self->srv_keys[2];
rdata->srv_keys[3] = self->srv_keys[3];
rdata->srv_keys[4] = self->srv_keys[4];
rdata->srv_keys[5] = self->srv_keys[5];
rdata->hstdin = NT_INVALID_HANDLE_VALUE;
rdata->hstdout = NT_INVALID_HANDLE_VALUE;
rdata->hstderr = NT_INVALID_HANDLE_VALUE;
rdata->stdin_type = NT_FILE_TYPE_PTY;
rdata->stdout_type = NT_FILE_TYPE_PTY;
rdata->stderr_type = NT_FILE_TYPE_PTY;
rdata->ptyany[0] = clctx->clinfo.any[0];
rdata->ptyany[1] = clctx->clinfo.any[1];
rdata->ptyany[2] = clctx->clinfo.any[2];
rdata->ptyany[3] = clctx->clinfo.any[3];
/* params */
ntapi->tt_aligned_block_memset(
¶ms,0,sizeof(params));
params.image_name = imgname->buffer;
params.rtblock = &rtblock;
params.creation_flags_process = NT_PROCESS_CREATE_FLAGS_INHERIT_HANDLES;
params.creation_flags_thread = NT_PROCESS_CREATE_FLAGS_CREATE_THREAD_SUSPENDED;
/* hoppla */
if ((status = ntapi->tt_create_native_process(¶ms)))
return ptyc_spawn_return(
&rtblock,status);
/* clctx */
clctx->hprocess = params.hprocess;
clctx->hthread = params.hthread;
clctx->cid.process_id = params.cid.process_id;
clctx->cid.thread_id = params.cid.thread_id;
if ((status = ntapi->tty_client_process_register(
self->hsession,
params.pbi.unique_process_id,
0,NT_TTY_INHERIT_HANDLES,0)))
ntapi->zw_terminate_process(
params.hprocess,
status);
session.pid = 0;
session.pgid = 0;
session.sid = 0;
session.syspid = params.pbi.unique_process_id;
if ((status = ntapi->tty_client_session_set(0,&session)))
ntapi->zw_terminate_process(
params.hprocess,
status);
if ((status = ntapi->zw_resume_thread(params.hthread,0)))
ntapi->zw_terminate_process(
params.hprocess,
status);
hchild[1] = params.hprocess;
hchild[0] = rdata->hready;
ntapi->zw_wait_for_multiple_objects(
2,hchild,
NT_WAIT_ANY,
NT_SYNC_NON_ALERTABLE,
0);
return ptyc_spawn_return(
&rtblock,status);
}
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