Blame src/pty/ptyc_spawn.c

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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 <pemagine/pemagine.h>
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#include <ntapi/nt_status.h>
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#include <ntapi/nt_object.h>
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#include <ntapi/nt_thread.h>
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#include <ntapi/nt_process.h>
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#include <ntapi/nt_string.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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int ptyc_spawn(struct ptyc_driver_ctx * dctx)
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{
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	int32_t				status;
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	nt_spawn_process_params		sparams;
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	nt_runtime_data			rtctx;
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	struct ptyc_driver_ctx_impl *	ictx;
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	struct ptyc_client_ctx *	clctx;
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	nt_rtdata *			self;
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	/* init */
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	if (!(ictx = ptyc_get_driver_ictx(dctx)))
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		return NT_STATUS_INVALID_HANDLE;
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	if (!dctx->cctx->eargv)
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		return NT_STATUS_SUCCESS;
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	self  = ictx->rtdata;
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	clctx = &ictx->clctx;
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	/* sparams */
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	ntapi->tt_aligned_block_memset(
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		&sparams,0,sizeof(sparams));
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	sparams.rtctx    = &rtctx;
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	sparams.patharg  = dctx->cctx->eargv[0];
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	sparams.argv     = dctx->cctx->eargv;
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	sparams.envp     = self->envp;
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	sparams.hsession = self->hsession;
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	/* rtctx */
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	ntapi->tt_aligned_block_memset(
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		&rtctx,0,sizeof(rtctx));
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	ntapi->tt_aligned_block_memcpy(
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		(uintptr_t *)&rtctx.cid_parent,
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		(uintptr_t *)&self->cid_self,
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		sizeof(nt_cid));
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	rtctx.hcwd  = self->hcwd;
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	rtctx.hroot = dctx->cctx->hroot
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			? dctx->cctx->hroot
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			: self->hroot;
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	rtctx.tty_type    = self->tty_type;
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	rtctx.tty_subtype = self->tty_subtype;
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	rtctx.tty_keys[0] = self->tty_keys[0];
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	rtctx.tty_keys[1] = self->tty_keys[1];
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	rtctx.tty_keys[2] = self->tty_keys[2];
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	rtctx.tty_keys[3] = self->tty_keys[3];
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	rtctx.tty_keys[4] = self->tty_keys[4];
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	rtctx.tty_keys[5] = self->tty_keys[5];
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	ntapi->tt_guid_copy(
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		&rtctx.tty_guid,
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		&self->tty_guid);
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	rtctx.hstdin      = NT_INVALID_HANDLE_VALUE;
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	rtctx.hstdout     = NT_INVALID_HANDLE_VALUE;
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	rtctx.hstderr     = NT_INVALID_HANDLE_VALUE;
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	rtctx.stdin_type  = NT_FILE_TYPE_PTY;
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	rtctx.stdout_type = NT_FILE_TYPE_PTY;
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	rtctx.stderr_type = NT_FILE_TYPE_PTY;
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	rtctx.ptyin [0]   = clctx->clinfo.any[0];
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	rtctx.ptyin [1]   = clctx->clinfo.any[1];
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	rtctx.ptyin [2]   = clctx->clinfo.any[2];
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	rtctx.ptyin [3]   = clctx->clinfo.any[3];
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	rtctx.ptyout[0]   = clctx->clinfo.any[0];
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	rtctx.ptyout[1]   = clctx->clinfo.any[1];
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	rtctx.ptyout[2]   = clctx->clinfo.any[2];
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	rtctx.ptyout[3]   = clctx->clinfo.any[3];
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	rtctx.ptyerr[0]   = clctx->clinfo.any[0];
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	rtctx.ptyerr[1]   = clctx->clinfo.any[1];
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	rtctx.ptyerr[2]   = clctx->clinfo.any[2];
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	rtctx.ptyerr[3]   = clctx->clinfo.any[3];
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	rtctx.ptyctl[0]   = clctx->clinfo.any[0];
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	rtctx.ptyctl[1]   = clctx->clinfo.any[1];
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	rtctx.ptyctl[2]   = clctx->clinfo.any[2];
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	rtctx.ptyctl[3]   = clctx->clinfo.any[3];
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	/* hoppla */
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	if ((status = ntapi->tt_spawn_native_process(&sparams)))
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		return status;
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	/* clctx */
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	clctx->hprocess		= sparams.hprocess;
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	clctx->hthread		= sparams.hthread;
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	clctx->cid.process_id	= sparams.cid.process_id;
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	clctx->cid.thread_id	= sparams.cid.thread_id;
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	/* child ready? */
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	if (!(sparams.eready.signal_state))
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		return NT_STATUS_GENERIC_COMMAND_FAILED;
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	/* finalize */
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	if (!(dctx->cctx->drvflags & (PTYC_DRIVER_DBG_RAW|PTYC_DRIVER_DBG_OVEN)))
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		if ((status = ntapi->pty_close(ictx->cctx.hpts)))
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			return status;
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	/* all done */
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	return NT_STATUS_SUCCESS;
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}