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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 <ntapi/ntapi.h>
#include <ptycon/ptycon.h>
#include "ptycon_driver_impl.h"
#include "ptycon_ioctl_impl.h"
#include "ptycon_status_impl.h"
static int32_t ptyc_pty_open(nt_pty * hptm, nt_guid * pty_guid, nt_pty ** hpty)
{
nt_vfd_dev_name pty_name;
nt_oa oa = {sizeof(oa),0,0,0,0,0};
ntapi->vfd_dev_name_init(
&pty_name,pty_guid);
oa.obj_name = &pty_name.name;
oa.root_dir = hptm;
return ntapi->pty_open(
0,hpty,
NT_FILE_ALL_ACCESS,
&oa,0,0,0);
}
static int32_t ptyc_ptm_open(struct ptyc_common_ctx * cctx)
{
nt_guid pty_guid = TTY_PTM_GUID;
return ptyc_pty_open(
0,&pty_guid,
&cctx->hptm);
}
static int32_t ptyc_pts_open(struct ptyc_common_ctx * cctx)
{
int32_t status;
nt_guid pty_guid = TTY_PTS_GUID;
if ((status = ptyc_grant(cctx->hptm)))
return status;
return ptyc_pty_open(
cctx->hptm,&pty_guid,
&cctx->hpts);
}
int ptyc_alloc_pty(struct ptyc_driver_ctx * dctx)
{
int32_t status;
struct ptyc_driver_ctx_impl * ictx;
struct ptyc_common_ctx * cctx;
if (!(ictx = ptyc_get_driver_ictx(dctx)))
return NT_STATUS_INVALID_HANDLE;
cctx = &ictx->cctx;
if (cctx->hpts || cctx->hptm)
return ptyc_set_status(
dctx,NT_STATUS_DEVICE_ALREADY_ATTACHED);
if ((status = ptyc_ptm_open(cctx)))
return ptyc_set_status(
dctx,status);
if (!dctx->units[0]
&& !(cctx->drvflags & PTYC_DRIVER_DBG_OVEN)
&& !(cctx->drvflags & PTYC_DRIVER_DBG_RAW))
return ptyc_set_status(
dctx,NT_STATUS_SUCCESS);
if ((status = ptyc_pts_open(cctx)))
return ptyc_set_status(
dctx,status);
return ptyc_set_status(
dctx,NT_STATUS_SUCCESS);
}
void ptyc_free_pty(struct ptyc_driver_ctx * dctx)
{
struct ptyc_driver_ctx_impl * ictx;
if (!(ictx = ptyc_get_driver_ictx(dctx)))
return;
if (ictx->cctx.hpts) {
ntapi->pty_close(ictx->cctx.hpts);
ictx->cctx.hpts = 0;
}
if (ictx->cctx.hptm) {
ntapi->pty_close(ictx->cctx.hptm);
ictx->cctx.hptm = 0;
}
}
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