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Diff for /ansh/src/daemon3.c between versions 1.1.1.1.2.3 and 1.4

version 1.1.1.1.2.3, 2011/10/13 11:01:37	version 1.4, 2012/07/22 22:41:33
Line 5	Line 5
* $Author$	* $Author$
* $Id$	* $Id$
*	*
*************************************************************************/	*************************************************************************
	The ELWIX and AITNET software is distributed under the following
	terms:

	All of the documentation and software included in the ELWIX and AITNET
	Releases is copyrighted by ELWIX - Sofia/Bulgaria <info@elwix.org>

	Copyright 2004, 2005, 2006, 2007, 2008, 2009, 2010, 2011
	by Michael Pounov <misho@elwix.org>. All rights reserved.

	Redistribution and use in source and binary forms, with or without
	modification, are permitted provided that the following conditions
	are met:
	1. Redistributions of source code must retain the above copyright
	notice, this list of conditions and the following disclaimer.
	2. Redistributions in binary form must reproduce the above copyright
	notice, this list of conditions and the following disclaimer in the
	documentation and/or other materials provided with the distribution.
	3. All advertising materials mentioning features or use of this software
	must display the following acknowledgement:
	This product includes software developed by Michael Pounov <misho@elwix.org>
	ELWIX - Embedded LightWeight unIX and its contributors.
	4. Neither the name of AITNET nor the names of its contributors
	may be used to endorse or promote products derived from this software
	without specific prior written permission.

	THIS SOFTWARE IS PROVIDED BY AITNET AND CONTRIBUTORS ``AS IS'' AND
	ANY EXPRESS OR IMPLIED WARRANTIES, INCLUDING, BUT NOT LIMITED TO, THE
	IMPLIED WARRANTIES OF MERCHANTABILITY AND FITNESS FOR A PARTICULAR PURPOSE
	ARE DISCLAIMED. IN NO EVENT SHALL THE REGENTS OR CONTRIBUTORS BE LIABLE
	FOR ANY DIRECT, INDIRECT, INCIDENTAL, SPECIAL, EXEMPLARY, OR CONSEQUENTIAL
	DAMAGES (INCLUDING, BUT NOT LIMITED TO, PROCUREMENT OF SUBSTITUTE GOODS
	OR SERVICES; LOSS OF USE, DATA, OR PROFITS; OR BUSINESS INTERRUPTION)
	HOWEVER CAUSED AND ON ANY THEORY OF LIABILITY, WHETHER IN CONTRACT, STRICT
	LIABILITY, OR TORT (INCLUDING NEGLIGENCE OR OTHERWISE) ARISING IN ANY WAY
	OUT OF THE USE OF THIS SOFTWARE, EVEN IF ADVISED OF THE POSSIBILITY OF
	SUCH DAMAGE.
	*/
#include "global.h"	#include "global.h"
#include "anshd.h"	#include "anshd.h"

Line 27 icmpTx(sched_task_t *task)	Line 64 icmpTx(sched_task_t *task)
str = cryptBuffer(proc->proc_buf_[FD2NET], proc->proc_rlen_[FD2NET], Crypted);	str = cryptBuffer(proc->proc_buf_[FD2NET], proc->proc_rlen_[FD2NET], Crypted);
if (str) {	if (str) {
memcpy(proc->proc_buf_[FD2NET], str, proc->proc_rlen_[FD2NET]);	memcpy(proc->proc_buf_[FD2NET], str, proc->proc_rlen_[FD2NET]);
free(str);	io_free(str);
}	}
}	}

if ((wlen = icmpSend(TASK_FD(task), proc->proc_id, proc->proc_flg, Crypted, proc->proc_buf_[FD2NET],	if ((wlen = icmpSend(TASK_FD(task), ++proc->proc_seq, proc->proc_id, proc->proc_flg, Crypted,
proc->proc_rlen_[FD2NET], &proc->proc_cli, sizeof proc->proc_cli)) != ANSH_FLG_ERR) {	proc->proc_buf_[FD2NET], proc->proc_rlen_[FD2NET], &proc->proc_cli,
	sizeof proc->proc_cli)) != ANSH_FLG_ERR) {
proc->proc_flg = ANSH_FLG_OK;	proc->proc_flg = ANSH_FLG_OK;
proc->proc_rlen_[FD2NET] = 0;	proc->proc_rlen_[FD2NET] = 0;
}	}
Line 45 void *	Line 83 void *
icmpRx(sched_task_t *task)	icmpRx(sched_task_t *task)
{	{
u_char buf, str;	u_char buf, str;
struct sockaddr sa;	io_sockaddr_t sa;
int rlen, n = 0, salen = sizeof sa;	int rlen, n = 0, salen = sizeof sa;
struct tagProc *proc = NULL;	struct tagProc *proc = NULL;
char ret;	char ret;
u_short id, *b;	u_short id, *b;
	u_int seq;

FTRACE(3);	FTRACE(3);

rlen = bpfLEN;	rlen = bpfLEN;
if (!(buf = malloc(rlen)))	if (!(buf = io_malloc(rlen)))
goto end;	goto end;
	else
	memset(buf, 0, rlen);

if ((ret = icmpRecv(TASK_FD(task), &id, &Crypted, buf, &rlen, &sa, (socklen_t *) &salen)) == ANSH_FLG_ERR)	if ((ret = icmpRecv(TASK_FD(task), &seq, &id, &Crypted, buf, &rlen, &sa,
	(socklen_t *) &salen)) == ANSH_FLG_ERR)
goto end;	goto end;
VERB(5) LOG("Received %d bytes", rlen);	VERB(5) LOG("Received %d bytes %d", rlen, seq);
if (!(ret & ANSH_FLG_CPOUT))	if (!(ret & ANSH_FLG_CPOUT))
goto end;	goto end;

Line 79 icmpRx(sched_task_t *task)	Line 121 icmpRx(sched_task_t *task)
str = cryptBuffer(buf, rlen, Crypted);	str = cryptBuffer(buf, rlen, Crypted);
if (str) {	if (str) {
memcpy(buf, str, rlen);	memcpy(buf, str, rlen);
free(str);	io_free(str);
}	}
}	}

switch (ret) {	switch (ret) {
case ANSH_FLG_EOF:	case ANSH_FLG_EOF:
case ANSH_FLG_CPOUT:	case ANSH_FLG_CPOUT:
	if (seq <= proc->proc_seq)
	goto end;
	else if (seq > (proc->proc_seq + 1))
	LOG("LOST PACKET(s) detect: %d; received seq=%d - %d",
	seq - proc->proc_seq + 1, seq, proc->proc_seq);
	proc->proc_seq = seq;
break;	break;
case ANSH_FLG_WINZ:	case ANSH_FLG_WINZ:
b = (u_short*) buf;	b = (u_short*) buf;
Line 103 icmpRx(sched_task_t *task)	Line 151 icmpRx(sched_task_t *task)
proc->proc_rlen_[NET2FD] = rlen;	proc->proc_rlen_[NET2FD] = rlen;
memset(proc->proc_buf_[NET2FD], 0, proc->proc_blen);	memset(proc->proc_buf_[NET2FD], 0, proc->proc_blen);
memcpy(proc->proc_buf_[NET2FD], buf, proc->proc_rlen_[NET2FD]);	memcpy(proc->proc_buf_[NET2FD], buf, proc->proc_rlen_[NET2FD]);
schedWrite(TASK_ROOT(task), fdTx, proc, proc->proc_pty);	schedWrite(TASK_ROOT(task), fdTx, proc, proc->proc_pty, NULL, 0);
end:	end:
free(buf);	io_free(buf);
schedRead(TASK_ROOT(task), icmpRx, NULL, proc ? proc->proc_sock : TASK_FD(task));	schedRead(TASK_ROOT(task), icmpRx, NULL, proc ? proc->proc_sock : TASK_FD(task), NULL, 0);
return NULL;	return NULL;
}	}

Line 114 void *	Line 162 void *
fdTx(sched_task_t *task)	fdTx(sched_task_t *task)
{	{
struct tagProc *proc;	struct tagProc *proc;
struct timeval tv = { 0 };	struct timespec ts = { 0 };
int wlen;	int wlen;

FTRACE(3);	FTRACE(3);
Line 127 fdTx(sched_task_t *task)	Line 175 fdTx(sched_task_t *task)
if (proc->proc_flg != ANSH_FLG_CPOUT \|\| !proc->proc_pid)	if (proc->proc_flg != ANSH_FLG_CPOUT \|\| !proc->proc_pid)
return NULL;	return NULL;

if (waitpid(proc->proc_pid, &wlen, WNOHANG)) {
ioFreePTY(TASK_FD(task), proc->proc_ttyname);
schedCancelby(TASK_ROOT(task), NULL, CRITERIA_FD, (void*) TASK_FD(task), NULL);

proc->proc_pid = 0;
proc->proc_flg = ANSH_FLG_EOF;
proc->proc_rlen_[FD2NET] = 0;

schedWrite(TASK_ROOT(task), icmpTx, proc, proc->proc_sock);
return NULL;
}

/* if Timeout defined, disarm timer */	/* if Timeout defined, disarm timer */
if (Timeout)	if (Timeout)
schedCancelby(TASK_ROOT(task), &TASK_ROOT(task)->root_timer, CRITERIA_CALL, TOfunc, NULL);	schedCancelby(TASK_ROOT(task), taskTIMER, CRITERIA_CALL, TOfunc, NULL);

wlen = write(TASK_FD(task), proc->proc_buf_[NET2FD], proc->proc_rlen_[NET2FD]);	wlen = write(TASK_FD(task), proc->proc_buf_[NET2FD], proc->proc_rlen_[NET2FD]);
switch (wlen) {	switch (wlen) {
case -1:	case -1:
ERR("write2tty #%d - %s", errno, strerror(errno));	ERR("write2tty #%d - %s", errno, strerror(errno));
/* exit from shell and release tty */	/* exit from shell and release tty */
waitpid(proc->proc_pid, &wlen, 0);
ioFreePTY(TASK_FD(task), proc->proc_ttyname);
schedCancelby(TASK_ROOT(task), NULL, CRITERIA_FD, (void*) TASK_FD(task), NULL);

proc->proc_pid = 0;
proc->proc_flg = ANSH_FLG_EOF;
proc->proc_rlen_[FD2NET] = 0;

schedWrite(TASK_ROOT(task), icmpTx, proc, proc->proc_sock);
return NULL;	return NULL;
default:	default:
proc->proc_flg = ANSH_FLG_OK;	proc->proc_flg = ANSH_FLG_OK;
Line 166 fdTx(sched_task_t *task)	Line 193 fdTx(sched_task_t *task)

/* if Timeout defined, go arm timer */	/* if Timeout defined, go arm timer */
if (Timeout) {	if (Timeout) {
tv.tv_sec = Timeout;	ts.tv_sec = Timeout;
schedTimer(TASK_ROOT(task), TOfunc, proc, tv);	schedTimer(TASK_ROOT(task), TOfunc, proc, ts, NULL, 0);
}	}
return NULL;	return NULL;
}	}
Line 176 void *	Line 203 void *
fdRx(sched_task_t *task)	fdRx(sched_task_t *task)
{	{
struct tagProc *proc;	struct tagProc *proc;
struct timeval tv = { 0 };	struct timespec ts = { 0 };
int rlen;	int rlen;

FTRACE(3);	FTRACE(3);
Line 187 fdRx(sched_task_t *task)	Line 214 fdRx(sched_task_t *task)
if (!proc->proc_pid)	if (!proc->proc_pid)
return NULL;	return NULL;

if (waitpid(proc->proc_pid, &rlen, WNOHANG)) {
ioFreePTY(TASK_FD(task), proc->proc_ttyname);
schedCancelby(TASK_ROOT(task), NULL, CRITERIA_FD, (void*) TASK_FD(task), NULL);

proc->proc_pid = 0;
proc->proc_flg = ANSH_FLG_EOF;
proc->proc_rlen_[FD2NET] = 0;

schedWrite(TASK_ROOT(task), icmpTx, proc, proc->proc_sock);
return NULL;
}

/* if Timeout defined, disarm timer */	/* if Timeout defined, disarm timer */
if (Timeout)	if (Timeout)
schedCancelby(TASK_ROOT(task), &TASK_ROOT(task)->root_timer, CRITERIA_CALL, TOfunc, NULL);	schedCancelby(TASK_ROOT(task), taskTIMER, CRITERIA_CALL, TOfunc, NULL);

memset(proc->proc_buf_[FD2NET], 0, proc->proc_blen);	memset(proc->proc_buf_[FD2NET], 0, proc->proc_blen);
rlen = read(TASK_FD(task), proc->proc_buf_[FD2NET],	rlen = read(TASK_FD(task), proc->proc_buf_[FD2NET],
Line 211 fdRx(sched_task_t *task)	Line 226 fdRx(sched_task_t *task)
ERR("readtty #%d - %s", errno, strerror(errno));	ERR("readtty #%d - %s", errno, strerror(errno));
case 0:	case 0:
/* exit from shell and release tty */	/* exit from shell and release tty */
waitpid(proc->proc_pid, &rlen, 0);
ioFreePTY(TASK_FD(task), proc->proc_ttyname);
schedCancelby(TASK_ROOT(task), NULL, CRITERIA_FD, (void*) TASK_FD(task), NULL);
VERB(3) LOG("EOF process status %d", rlen);

proc->proc_pid = 0;
proc->proc_flg = ANSH_FLG_EOF;
proc->proc_rlen_[FD2NET] = 0;

schedWrite(TASK_ROOT(task), icmpTx, proc, proc->proc_sock);
return NULL;	return NULL;
default:	default:
proc->proc_flg = ANSH_FLG_OK;	proc->proc_flg = ANSH_FLG_OK;
Line 228 fdRx(sched_task_t *task)	Line 233 fdRx(sched_task_t *task)
}	}
VERB(3) LOG("Readed %d bytes - %s", rlen, proc->proc_buf_[FD2NET]);	VERB(3) LOG("Readed %d bytes - %s", rlen, proc->proc_buf_[FD2NET]);

schedWrite(TASK_ROOT(task), icmpTx, proc, proc->proc_sock);	schedWrite(TASK_ROOT(task), icmpTx, proc, proc->proc_sock, NULL, 0);
schedRead(TASK_ROOT(task), fdRx, proc, proc->proc_pty);	schedRead(TASK_ROOT(task), fdRx, proc, proc->proc_pty, NULL, 0);

/* if Timeout defined, go arm timer */	/* if Timeout defined, go arm timer */
if (Timeout) {	if (Timeout) {
tv.tv_sec = Timeout;	ts.tv_sec = Timeout;
schedTimer(TASK_ROOT(task), TOfunc, proc, tv);	schedTimer(TASK_ROOT(task), TOfunc, proc, ts, NULL, 0);
}	}
return NULL;	return NULL;
}	}
Line 243 int	Line 248 int
spawnLogin(sched_task_t task, struct tagProc proc)	spawnLogin(sched_task_t task, struct tagProc proc)
{	{
int flg;	int flg;
struct timeval tv = { 0 };	struct timespec ts = { 0 };
char str[STRSIZ] = { 0 };	char str[STRSIZ] = { 0 };
struct sockaddr_in *sin;
struct sockaddr_in6 *sin6;

FTRACE(3);	FTRACE(3);

Line 261 spawnLogin(sched_task_t task, struct tagProc proc)	Line 264 spawnLogin(sched_task_t task, struct tagProc proc)
printf("ansh3d ELWIX remote management system over ICMP (%s)\n\n",	printf("ansh3d ELWIX remote management system over ICMP (%s)\n\n",
proc->proc_ttyname);	proc->proc_ttyname);
strlcpy(str, "-hansh3@", sizeof str);	strlcpy(str, "-hansh3@", sizeof str);
if (proc->proc_cli.sa_family == AF_INET) {	if (proc->proc_cli.sa.sa_family == AF_INET)
sin = (struct sockaddr_in*) &proc->proc_cli;	inet_ntop(AF_INET, &proc->proc_cli.sin.sin_addr, str + 8, INET_ADDRSTRLEN);
inet_ntop(AF_INET, &sin->sin_addr, str + 8, INET_ADDRSTRLEN);	else if (proc->proc_cli.sa.sa_family == AF_INET6)
} else if (proc->proc_cli.sa_family == AF_INET6) {	inet_ntop(AF_INET6, &proc->proc_cli.sin6.sin6_addr, str + 8, INET6_ADDRSTRLEN);
sin6 = (struct sockaddr_in6*) &proc->proc_cli;
inet_ntop(AF_INET6, &sin6->sin6_addr, str + 8, INET6_ADDRSTRLEN);
}
execl("/usr/bin/login", "login", str, NULL);	execl("/usr/bin/login", "login", str, NULL);
/* never reached */	/* never reached */
return -1;	return -1;
Line 276 spawnLogin(sched_task_t task, struct tagProc proc)	Line 276 spawnLogin(sched_task_t task, struct tagProc proc)
fcntl(proc->proc_pty, F_SETFL, flg \| O_NONBLOCK);	fcntl(proc->proc_pty, F_SETFL, flg \| O_NONBLOCK);

VERB(3) LOG("Parent know child pid %d", proc->proc_pid);	VERB(3) LOG("Parent know child pid %d", proc->proc_pid);
schedRead(TASK_ROOT(task), fdRx, proc, proc->proc_pty);	schedRead(TASK_ROOT(task), fdRx, proc, proc->proc_pty, NULL, 0);

/* if Timeout defined, go arm timer */	/* if Timeout defined, go arm timer */
if (Timeout) {	if (Timeout) {
tv.tv_sec = Timeout;	ts.tv_sec = Timeout;
schedTimer(TASK_ROOT(task), TOfunc, proc, tv);	schedTimer(TASK_ROOT(task), TOfunc, proc, ts, NULL, 0);
}	}
break;	break;
}	}

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Removed from v.1.1.1.1.2.3
changed lines
	Added in v.1.4