OpenSolaris Launch

1 files changed, 507 insertions, 0 deletions

diff --git a/usr/src/lib/libnsl/dial/interface.c b/usr/src/lib/libnsl/dial/interface.c
new file mode 100644
index 0000000000..bd69864ba7
--- /dev/null
+++ b/usr/src/lib/libnsl/dial/interface.c
@@ -0,0 +1,507 @@
+/*
+ * CDDL HEADER START
+ *
+ * The contents of this file are subject to the terms of the
+ * Common Development and Distribution License, Version 1.0 only
+ * (the "License").  You may not use this file except in compliance
+ * with the License.
+ *
+ * You can obtain a copy of the license at usr/src/OPENSOLARIS.LICENSE
+ * or http://www.opensolaris.org/os/licensing.
+ * See the License for the specific language governing permissions
+ * and limitations under the License.
+ *
+ * When distributing Covered Code, include this CDDL HEADER in each
+ * file and include the License file at usr/src/OPENSOLARIS.LICENSE.
+ * If applicable, add the following below this CDDL HEADER, with the
+ * fields enclosed by brackets "[]" replaced with your own identifying
+ * information: Portions Copyright [yyyy] [name of copyright owner]
+ *
+ * CDDL HEADER END
+ */
+/*	Copyright (c) 1984, 1986, 1987, 1988, 1989 AT&T	*/
+/*	  All Rights Reserved  	*/
+
+
+/*
+ * Copyright 2004 Sun Microsystems, Inc.  All rights reserved.
+ * Use is subject to license terms.
+ */
+
+#pragma ident	"%Z%%M%	%I%	%E% SMI"
+
+/*	interface( label )
+	provide alternate definitions for the I/O functions through global
+	interfaces.
+*/
+#include	"uucp.h"
+#include <rpc/trace.h>
+ 
+
+#ifdef TLI
+#include	<tiuser.h>
+char *t_alloc();
+int t_bind(), t_close(), t_connect(), t_free(), t_look(), t_open(), t_rcvdis();
+int t_getinfo(), t_getstate(), t_look(), t_rcv(), t_snd(), t_sync(), t_unbind();
+#endif /*  TLI  */
+
+#ifdef DATAKIT
+#include	"dk.h"
+
+static int	dksetup();
+static int	dkteardown();
+#endif	/* DATAKIT */
+
+EXTERN void	sethup();
+EXTERN int	restline();
+extern ssize_t	read(), write();
+static int	usetup(), uteardown();
+
+GLOBAL ssize_t	(*Read)() = read,
+	(*Write)() = write;
+GLOBAL int	(*Ioctl)(int,int,...) = ioctl,
+	(*Setup)() = usetup,
+	(*Teardown)() = uteardown;
+
+#ifdef TLI
+EXTERN void tfaillog(int fd, const char *s);
+EXTERN void show_tlook();
+static ssize_t	tread(), twrite();	/* TLI i/o */
+static int		tioctl(int, int, ...),
+		tsetup(),		/* TLI setup without streams module */
+		tssetup(),		/* TLI setup with streams module */
+		tteardown();		/* TLI teardown, works with either setup
+					*/
+#endif /*  TLI  */
+/*	The IN_label in Interface[] imply different caller routines:
+	e.g. tlicall().
+	If so, the names here and the names in callers.c must match.
+*/
+
+static
+  struct Interface {
+	const	char	*IN_label;		/* interface name */
+	ssize_t	(*IN_read)();		/* read function */
+	ssize_t	(*IN_write)();		/* write function */
+	int	(*IN_ioctl)(int,int,...);
+	int	(*IN_setup)();		/* setup function, called before first
+					i/o operation */
+	int	(*IN_teardown)();	/* teardown function, called after last
+					i/o operation */
+} Interface[] = {
+			/* vanilla UNIX */
+		{ "UNIX", read, write, ioctl, usetup, uteardown },
+#ifdef SYTEK
+			/* Sytek network */
+		{ "Sytek", read, write, ioctl, usetup, uteardown },
+#endif /* Sytek network */
+#ifdef DIAL801
+			/* 801 auto dialers */
+		{ "801", read, write, ioctl, usetup, uteardown },
+#endif /* DIAL801 */
+#ifdef DIAL801
+			/* 212 auto dialers */
+		{ "212", read, write, ioctl, usetup, uteardown },
+#endif /* DIAL801 */
+#ifdef TLI
+			/* AT&T Transport Interface Library WITHOUT streams */
+		{ "TLI", tread, twrite, tioctl, tsetup, tteardown },
+#ifdef TLIS
+			/* AT&T Transport Interface Library WITH streams */
+		{ "TLIS", read, write, tioctl, tssetup, uteardown },
+#endif /*  TLIS  */
+#endif /*  TLI  */
+#ifdef DATAKIT
+		{ "DK", read, write, ioctl, dksetup, dkteardown },
+#endif /* DATAKIT */
+#ifdef UNET  /* this should work for 4.2BSD and 3com */
+		{ "TCP", read, write, ioctl, usetup, uteardown },
+#endif
+#ifdef UNET
+		{ "Unetserver", read, write, ioctl, usetup, uteardown },
+#endif		
+		{ 0, 0, 0, 0, 0, 0 }
+	};
+
+
+GLOBAL int
+interface(label)
+char	*label;
+{
+	register int	i;
+
+	trace1(TR_interface, 0);
+	for (i = 0;  Interface[i].IN_label;  ++i) {
+		if (!strcmp(Interface[i].IN_label, label)) {
+			Read = Interface[i].IN_read;
+			Write = Interface[i].IN_write;
+			Ioctl = Interface[i].IN_ioctl;
+			Setup = Interface[i].IN_setup;
+			Teardown = Interface[i].IN_teardown;
+			DEBUG(5, "set interface %s\n", label);
+			trace1(TR_interface, 1);
+			return (0);
+		}
+	}
+	trace1(TR_interface, 1);
+	return (FAIL);
+}
+
+/*
+ *	usetup - vanilla unix setup routine
+ */
+static int
+usetup(int role, int *fdreadp, int *fdwritep)
+{
+	trace1(TR_usetup, 0);
+	if (role == SLAVE) {
+		*fdreadp = 0;
+		*fdwritep = 1;
+		/* 2 has been re-opened to RMTDEBUG in main() */
+	}
+	trace1(TR_usetup, 1);
+	return (SUCCESS);
+}
+
+/*
+ *	uteardown - vanilla unix teardown routine
+ */
+static int
+uteardown(int role, int fdread, int fdwrite)
+{
+	int ret;
+	char *ttyn;
+
+	trace1(TR_uteardown, 0);
+	if (role == SLAVE) {
+		ret = restline();
+		DEBUG(4, "ret restline - %d\n", ret);
+		sethup(0);
+	}
+	if (fdread != -1) {
+		ttyn = ttyname(fdread);
+		if (ttyn != NULL)
+			chmod(ttyn, Dev_mode);	/* can fail, but who cares? */
+		(void) close(fdread);
+		(void) close(fdwrite);
+	}
+	trace1(TR_uteardown, 1);
+	return (SUCCESS);
+}
+
+#ifdef DATAKIT
+/*
+ *	dksetup - DATAKIT setup routine
+ *
+ * Put line in block mode.
+ */
+
+static int
+dksetup (role, fdreadp, fdwritep)
+int	role;
+int *	fdreadp;
+int *	fdwritep;
+{
+	static short dkrmode[3] = { DKR_BLOCK | DKR_TIME, 0, 0 };
+	int	ret;
+
+	trace2(TR_dksetup, 0, role);
+	(void) usetup(role, fdreadp, fdwritep);
+	if ((ret = (*Ioctl)(*fdreadp, DIOCRMODE, dkrmode)) < 0) {
+		DEBUG(4, "dksetup: failed to set block mode. ret=%d,\n", ret);
+		DEBUG(4, "read fd=%d, ", *fdreadp);
+		DEBUG(4, "errno=%d\n", errno);
+		trace1(TR_dksetup, 1);
+		return (FAIL);
+	}
+	trace1(TR_dksetup, 1);
+	return (SUCCESS);
+}
+
+/*
+ *	dkteardown  -  DATAKIT teardown routine
+ */
+static int
+dkteardown(role, fdread, fdwrite)
+int	role, fdread, fdwrite;
+{
+	char	*ttyn;
+
+	trace4(TR_dkteardown, 0, role, fdread, fdwrite);
+	if (role == MASTER) {
+		ttyn = ttyname(fdread);
+		if (ttyn != NULL)
+			chmod(ttyn, Dev_mode);	/* can fail, but who cares? */
+	}
+
+	/*	must flush fd's for datakit	*/
+	/*	else close can hang		*/
+	if (ioctl(fdread, DIOCFLUSH, NULL) != 0)
+		DEBUG(4, "dkteardown: DIOCFLUSH of input fd %d failed", fdread);
+	if (ioctl(fdwrite, DIOCFLUSH, NULL) != 0)
+		DEBUG(4, "dkteardown: DIOCFLUSH of output fd %d failed", fdwrite);
+
+	(void) close(fdread);
+	(void) close(fdwrite);
+	trace1(TR_dkteardown, 1);
+	return (SUCCESS);
+}
+#endif /* DATAKIT */
+
+
+#ifdef TLI
+/*
+ *	tread - tli read routine
+ */
+static ssize_t
+tread(fd, buf, nbytes)
+int		fd;
+char		*buf;
+unsigned	nbytes;
+{
+	int		rcvflags;
+	int		dummy;
+
+	trace2(TR_tread, 0, fd);
+	dummy = t_rcv(fd, buf, nbytes, &rcvflags);
+	trace1(TR_tread, 1);
+	return ((ssize_t)dummy);
+} 
+
+/*
+ *	twrite - tli write routine
+ */
+#define	N_CHECK	100
+static ssize_t
+twrite(fd, buf, nbytes)
+int		fd;
+char		*buf;
+unsigned	nbytes;
+{
+	register int		i, ret;
+	static int		n_writ, got_info;
+	static struct t_info	info;
+	int                     dummy;
+
+	trace3(TR_twrite, 0, fd, nbytes);
+	if (got_info == 0) {
+		if (t_getinfo(fd, &info) != 0) {
+			tfaillog(fd, "twrite: t_getinfo\n");
+			trace1(TR_twrite, 1);
+			return (FAIL);
+		}
+		got_info = 1;
+	}
+
+	/* on every N_CHECKth call, check that are still in DATAXFER state */
+	if (++n_writ == N_CHECK) {
+		n_writ = 0;
+		if (t_getstate(fd) != T_DATAXFER) {
+			trace1(TR_twrite, 1);
+			return (FAIL);
+		}
+	}	
+
+	if (info.tsdu <= 0 || nbytes <= info.tsdu) {
+		dummy = t_snd(fd, buf, nbytes, NULL);
+		trace1(TR_twrite, 1);
+		return ((ssize_t)dummy);
+	}
+	/* if get here, then there is a limit on transmit size	*/
+	/* (info.tsdu > 0) and buf exceeds it			*/
+	i = ret = 0;
+	while (nbytes >= info.tsdu) {
+		if ((ret = t_snd(fd,  &buf[i], info.tsdu, NULL)) != info.tsdu) {
+			trace1(TR_twrite, 1);
+			return ((ssize_t)(ret >= 0 ? (i + ret) : ret));
+		}
+		i += info.tsdu;
+		nbytes -= info.tsdu;
+	}
+	if (nbytes != 0) {
+		if ((ret = t_snd(fd,  &buf[i], nbytes, NULL)) != nbytes) {
+			trace1(TR_twrite, 1);
+			return ((ssize_t)(ret >= 0 ? (i + ret) : ret));
+		}
+		i += nbytes;
+	}
+	trace1(TR_twrite, 1);
+	return ((ssize_t)i);
+}
+
+/*
+ *	tioctl - stub for tli ioctl routine
+ */
+/* ARGSUSED */
+static int
+#ifdef __STDC__
+tioctl(int fd, int request, ...)
+#else
+tioctl(fd, request, arg)
+int	fd, request;
+#endif
+{
+	trace1(TR_tioctl, 0);
+	trace1(TR_tioctl, 1);
+	return (SUCCESS);
+}
+
+/*
+ *	tsetup - tli setup routine
+ *	note blatant assumption that *fdreadp == *fdwritep == 0
+ */
+static int
+tsetup(int role, int *fdreadp, int *fdwritep)
+{
+	trace1(TR_tsetup, 0);
+	if (role == SLAVE) {
+		*fdreadp = 0;
+		*fdwritep = 1;
+		/* 2 has been re-opened to RMTDEBUG in main() */
+		errno = t_errno = 0;
+		if (t_sync(*fdreadp) == -1 || t_sync(*fdwritep) == -1) {
+			tfaillog(*fdreadp, "tsetup: t_sync\n");
+			trace1(TR_tsetup, 1);
+			return (FAIL);
+		}
+	}
+	trace1(TR_tsetup, 1);
+	return (SUCCESS);
+}
+
+/*
+ *	tteardown - tli shutdown routine
+ */
+/* ARGSUSED */
+static int
+tteardown(int role, int fdread, int fdwrite)
+{
+	trace1(TR_tteardown, 0);
+	(void) t_unbind(fdread);
+	(void) t_close(fdread);
+	trace1(TR_tteardown, 1);
+	return (SUCCESS);
+}
+
+#ifdef TLIS
+/*
+ *	tssetup - tli, with streams module, setup routine
+ *	note blatant assumption that *fdreadp == *fdwritep
+ */
+static int
+tssetup(role, fdreadp, fdwritep)
+int	role;
+int	*fdreadp;
+int	*fdwritep;
+{
+	trace2(TR_tssetup, 0, role);
+	if (role == SLAVE) {
+		*fdreadp = 0;
+		*fdwritep = 1;
+		/* 2 has been re-opened to RMTDEBUG in main() */
+		DEBUG(5, "tssetup: SLAVE mode: leaving ok\n%s", "");
+		trace1(TR_tssetup, 1);
+		return (SUCCESS);
+	}
+
+	DEBUG(4, "tssetup: MASTER mode: leaving ok\n%s", "");
+	trace1(TR_tssetup, 1);
+	return (SUCCESS);
+}
+
+/*
+ *	Report why a TLI call failed.
+ */
+GLOBAL void
+tfaillog(fd, s)
+int	fd;
+const char	*s;
+{
+	char	fmt[ BUFSIZ ];
+
+	trace2(TR_tfaillog, 0, fd);
+	if (0 < t_errno && t_errno < t_nerr) {
+		sprintf(fmt, "%s: %%s\n", s);
+		DEBUG(5, fmt, t_errlist[t_errno]);
+		logent(s, t_errlist[t_errno]);
+		if (t_errno == TSYSERR) {
+			strcpy(fmt, "tlicall: system error: %s\n");
+			DEBUG(5, fmt, strerror(errno));
+		} else if (t_errno == TLOOK) {
+			show_tlook(fd);
+		}
+	} else {
+		sprintf(fmt, "unknown tli error %d", t_errno);
+		logent(s, fmt);
+		sprintf(fmt, "%s: unknown tli error %d", s, t_errno);
+		DEBUG(5, fmt, 0);
+		sprintf(fmt, "%s: %%s\n", s);
+		DEBUG(5, fmt, strerror(errno));
+	}
+	trace1(TR_tfaillog, 1);
+	return;
+}
+
+GLOBAL void
+show_tlook(fd)
+int fd;
+{
+	register int reason;
+	register const char *msg;
+
+/*
+ * Find out the current state of the interface.
+ */
+	trace2(TR_show_tlook, 0, fd);
+	errno = t_errno = 0;
+	switch(reason = t_getstate(fd)) {
+	case T_UNBND:		msg = (const char *)"T_UNBIND";	break;
+	case T_IDLE:		msg = (const char *)"T_IDLE";	break;
+	case T_OUTCON:		msg = (const char *)"T_OUTCON";	break;
+	case T_INCON:		msg = (const char *)"T_INCON";	break;
+	case T_DATAXFER:	msg = (const char *)"T_DATAXFER"; break;
+	case T_OUTREL:		msg = (const char *)"T_OUTREL";	break;
+	case T_INREL:		msg = (const char *)"T_INREL";	break;
+	default:		msg = NULL;		break;
+	}
+	if (msg == NULL) {
+		trace1(TR_show_tlook, 1);
+		return;
+	}
+	DEBUG(5, "state is %s", msg);
+	switch(reason = t_look(fd)) {
+	case -1:		msg = (const char *)""; break;
+	case 0:			msg = (const char *)"NO ERROR"; break;
+	case T_LISTEN:		msg = (const char *)"T_LISTEN"; break;
+	case T_CONNECT:		msg = (const char *)"T_CONNECT"; break;
+	case T_DATA:		msg = (const char *)"T_DATA";	 break;
+	case T_EXDATA:		msg = (const char *)"T_EXDATA"; break;
+	case T_DISCONNECT:	msg = (const char *)"T_DISCONNECT"; break;
+	case T_ORDREL:		msg = (const char *)"T_ORDREL"; break;
+	case T_ERROR:		msg = (const char *)"T_ERROR"; break;
+	case T_UDERR:		msg = (const char *)"T_UDERR"; break;
+	default:		msg = (const char *)"UNKNOWN ERROR"; break;
+	}
+	DEBUG(4, " reason is %s\n", msg);
+
+	if (reason == T_DISCONNECT)
+	{
+		struct t_discon	*dropped;
+		if (((dropped = 
+			(struct t_discon *)t_alloc(fd, T_DIS, T_ALL)) == 0) 
+		||  (t_rcvdis(fd, dropped) == -1)) {
+			if (dropped)
+				t_free((char *)dropped, T_DIS);
+			trace1(TR_show_tlook, 1);
+			return;
+		}
+		DEBUG(5, "disconnect reason #%d\n", dropped->reason);
+		t_free((char *)dropped, T_DIS);
+	}
+	trace1(TR_show_tlook, 1);
+	return;
+}
+
+#endif /*  TLIS  */
+
+#endif /*  TLI  */