Connectionless Mode, Snap SAP | HP UX 11i v2 Networking Software

Sample Programs

Connectionless Mode

Connectionless Mode

/**************************************************************************

(C)COPYRIGHT HEWLETT-PACKARD COMPANY 1992. ALL RIGHTS RESERVED. NO PART OF THIS PROGRAM MAY BE PHOTOCOPIED, REPRODUCED, OR TRANSLATED TO ANOTHER PROGRAM LANGUAGE WITHOUT THE PRIOR WRITTEN CONSENT OF HEWLETT PACKARD COMPANY

**************************************************************************/

/************************************************************************** The main part of this program is composed of two parts.

The first part demonstrates data transfer over a connectionless stream with LLC SAP headers. The second part of this program demonstrates data transfer over a connectionless stream with LLC SNAP headers.

*************************************************************************/

#include <stdio.h> #include <fcntl.h> #include <memory.h> #include <sys/types.h> #include <sys/stream.h> #include <sys/stropts.h> #include <sys/dlpi.h> #include <sys/dlpi_ext.h>

#define SEND_SAP	0x80	/* sending SAP */
#define RECV_SAP	0x82	/*	receiving SAP */
#define SNAP_SAP	0xAA	/*	SNAP SAP */

/************************************************************************* SNAP protocol values.

**************************************************************************/

u_char SEND_SNAP_SAP[5] = {0x50, 0x00, 0x00, 0x00, 0x00}; u_char RECV_SNAP_SAP[5] = {0x60, 0x00, 0x00, 0x00, 0x00};

/************************************************************************* global areas for sending and receiving messages

**************************************************************************/

#define	AREA_SIZE	5000	/*	bytes; big enough for largest possible msg */
#define	LONG_AREA_SIZE	(AREA_SIZE		/ sizeof(u_long)) /* AREA_SIZE / 4 */
u_long	ctrl_area[LONG_AREA_SIZE];			/* for control messages */
u_long	data_area[LONG_AREA_SIZE];			/* for data messages */
struct strbuf ctrl_buf = {
	AREA_SIZE,		/* maxlen = AREA_SIZE */
	0,		/* len gets filled in for each message */
};	ctrl_area		/* buf = control area */
};

struct strbuf data_buf = {

156	Appendix A

Image 156

HP UX 11i v2 Networking Software manual Connectionless Mode, Snap SAP

Contents

Dlpi Programmer’s Guide Edition Legal Notices Page Page Contents Contents Contents Sample Programs Printing History Page Preface Appendix a Sample ProgramsPage Introduction to Dlpi Introduction to Dlpi HP Dlpi Features Device File Format Header Files Service Interface Data Link Layer Dlpi Connection-mode Service Modes of Communication Data Link Layer Connectionless-mode Service Dlpi AddressingPhysical Attachment Identiﬁcation HP PPA Format Data Link User Identiﬁcation HP’s Dlsap Address Format 802.3, Ethernet, Token Ring, Fddi HP’s Dlsap Address Format for Fibre Channel Dlsap Promiscuous Mode Clariﬁcations Dlpi Services Dlerrorack DlinforeqDlinfoack Dlhpppareq Dlresetreq DlresetindDlresetres Dlresetcon Local Management Services Information Reporting ServiceDlhprawdatareq Dlhprawdataind Attach Service Bind Service Binding Reserved IEEESAPS/EthertypesSnap Message Flow Binding a Stream to a Dlsap Message Flow Enabling a Speciﬁc Multicast Address on a Connection-mode Services Connection Establishment Service Connection Handoff 12 Message Flow Successful Connection Establishment 13 Message Flow Token Retrieval 16 Message Flow Both Primitives are Destroyed by Provider Data Transfer Service 19 Message Flow Normal Data Transfer Connection Release Service 20 Message Flow DLS User-Invoked Connection Release Reset Service 23 Message Flow DLS User-Invoked Connection Reset Connectionless-mode Services Connectionless Data Transfer Raw-mode Services Error Reporting Service XID and Test Service Raw-mode Data Transfer 31 Message Flow XID Service XID and Test Packet Handling 32 Message Flow Test Service An Example 33 Message Flow a Connection-Mode Example Dlpi Primitives Dlpi Primitives Local Management Primitives PPA Initialization/De-initialization Dlhpppareq Dlhpppaack Dlhpppaack Dlinforeq MTU Dlinfoack Dlcsmacd DltpbDltpr Dlmetro Dlchar DlctcaDlfddi Dlother Dlhprawdls DlacldlsDlunknown DLSTYLE1 DLSTYLE2 Dlaccess DlattachreqDlbadppa Dldetachreq DloutstateDlsyserr Dlbindreq Dlbadaddr DlinitfailedDlnotinit Dlbindack Dlunbindreq Dlsubsbindreq Dlpeerbind Dlhierarchicalbind Dlsubsbindack Dltoomany Dlsubsunbindreq Dlenabmultireq Dldisabmultireq Dlnotsupported Dlpromisconreq Dlnotenab Dlpromiscphys DlpromiscsapDlpromiscmulti Dlpromiscoffreq Dlokack Dlerrorack Dlphysaddrreq Dlfactphysaddr Dlcurrphysaddr Dlphysaddrack DlsetphysaddrreqDlphysaddrack Dlphysaddrreq Dlsetphysaddrreq Dlgetstatisticsreq DlgetstatisticsackDlbusy Dlgetstatisticsreq Dlhpmulticastlistreq Dlgetstatisticsack Dlhpmulticastlistack Dlhpmulticastlistack Connectionless-mode Service Primitives Dlunitdatareq Dlbaddata Dlunitdataind Dluderrorind Message is valid in state Dlidle Raw Mode Service Primitives Dlhprawdatareq Dlhprawdataind Dlbadprim Raw Mode Service Primitives Connection-mode Service Primitives Connection-Oriented Dlpi ExtensionsDlhpinforeq Dlhpinfoack Dlhpinforeq Dlhpinfoack Connection-mode Service Primitives Connection-mode Service Primitives Dlhpsetacktoreq Dlhpsetacktoreq Dlhpsetptoreq Dlhpsetptoreq Dlhpsetrejtoreq DlhpsetbusytoreqDlhpsetrejtoreq Dlhpsetsendacktoreq Dlhpsetbusytoreq Dlhpsetmaxretriesreq DlhpsetsendacktoreqDlhpsetmaxretriesreq Dlhpsetackthreshreq DLOUTCONPENDING, Dlinconpending Dlhpsetlocalwinreq Dlhpsetremotewinreq Dlhpclearstatsreq Dlhpsetremotewinreq Dlhpsetlocalbusyreq DlhpclearstatsreqDlhpsetlocalbusyreq Dlhpclearlocalbusyreq Dlhpclearlocalbusyreq Dlconnectreq Dlconnectind DlbadqosparamDlbadqostype 112 Dlconnectres 114 Dlconnectcon DlbadtokenDlbadcorr Dlpending 116 Dltokenreq Dltokenack Dldatareq Dldataind Dldisconnectreq 120 Dldisconnectind Dlresetreq Dlresetind Dlresetres Dlresetcon 126 Primitives to Handle XID and Test Operations Dltestreq Dltestind Dltestauto Chapter 129 Dltestres Dltestcon Dlxidreq Dlxidind Dlxidauto 134 Dlxidres Dlpollfinal Dlxidcon Chapter 137 Dlpi States User Reset Dluserreset Dlresetcon Prov Reset DlprovresetDlresetres Resetres Udqos Pend Dludqos DLDISCON9 Pend PendingDlinconpending DLDISCON11 Chapter 141 142 Sample Programs Connection Mode Longareasize Appendix a 145 146 Appendix a 147 148 Appendix a 149 150 Appendix a 151 152 Appendix a 153 154 Appendix a 155 Connectionless Mode Snap SAP Appendix a 157 158 Appendix a 159 160 Appendix a 161 162 Appendix a 163 164 Appendix a 165 166 Raw Mode 168 Appendix a 169 170 Appendix a 171 Raw Mode 172 Glossary Connection establishment 174 Glossary Index