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/*********************************************************/
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/* ptycon: a pty-console bridge */
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/* Copyright (C) 2016 Z. Gilboa */
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/* Released under GPLv2 and GPLv3; see COPYING.PTYCON. */
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/*********************************************************/
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#include <psxtypes/psxtypes.h>
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#include <ntapi/ntapi.h>
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#include <ptycon/ptycon.h>
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#include "ptycon_driver_impl.h"
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#include "ptycon_ioctl_impl.h"
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#include "ptycon_status_impl.h"
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static int32_t ptyc_pty_open(nt_pty * hptm, nt_guid * pty_guid, nt_pty ** hpty)
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{
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nt_vfd_dev_name pty_name;
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nt_oa oa = {sizeof(oa),0,0,0,0,0};
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ntapi->vfd_dev_name_init(
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&pty_name,pty_guid);
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oa.obj_name = &pty_name.name;
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oa.root_dir = hptm;
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return ntapi->pty_open(
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0,hpty,
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NT_FILE_ALL_ACCESS,
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&oa,0,0,0);
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}
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static int32_t ptyc_ptm_open(struct ptyc_common_ctx * cctx)
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{
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nt_guid pty_guid = TTY_PTM_GUID;
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return ptyc_pty_open(
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0,&pty_guid,
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&cctx->hptm);
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}
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static int32_t ptyc_pts_open(struct ptyc_common_ctx * cctx)
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{
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int32_t status;
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nt_guid pty_guid = TTY_PTS_GUID;
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if ((status = ptyc_grant(cctx->hptm)))
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return status;
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return ptyc_pty_open(
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cctx->hptm,&pty_guid,
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&cctx->hpts);
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}
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int ptyc_alloc_pty(struct ptyc_driver_ctx * dctx)
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{
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int32_t status;
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struct ptyc_driver_ctx_impl * ictx;
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struct ptyc_common_ctx * cctx;
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if (!(ictx = ptyc_get_driver_ictx(dctx)))
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return NT_STATUS_INVALID_HANDLE;
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cctx = &ictx->cctx;
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if (cctx->hpts || cctx->hptm)
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return ptyc_set_status(
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dctx,NT_STATUS_DEVICE_ALREADY_ATTACHED);
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if ((status = ptyc_ptm_open(cctx)))
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return ptyc_set_status(
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dctx,status);
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if (!dctx->units[0]
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&& !(cctx->drvflags & PTYC_DRIVER_DBG_OVEN)
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&& !(cctx->drvflags & PTYC_DRIVER_DBG_RAW))
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return ptyc_set_status(
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dctx,NT_STATUS_SUCCESS);
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if ((status = ptyc_pts_open(cctx)))
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return ptyc_set_status(
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dctx,status);
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return ptyc_set_status(
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dctx,NT_STATUS_SUCCESS);
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}
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void ptyc_free_pty(struct ptyc_driver_ctx * dctx)
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{
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struct ptyc_driver_ctx_impl * ictx;
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if (!(ictx = ptyc_get_driver_ictx(dctx)))
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return;
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if (ictx->cctx.hpts) {
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ntapi->pty_close(ictx->cctx.hpts);
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ictx->cctx.hpts = 0;
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}
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if (ictx->cctx.hptm) {
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ntapi->pty_close(ictx->cctx.hptm);
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ictx->cctx.hptm = 0;
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}
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}
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