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- <head>
- <title>
- evse.c
- </title>
- <meta http-equiv='content-type' content='text/html;iso-8859-1'/>
- <meta name='generator' content='motley-tools 1.9.4 13:40:33 Feb 18 2015'/>
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- <div class='headerlink'>
- [<a href='EthernetHeader.c.html' title=' EthernetHeader.c '>PREV</a>]
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- [<a href='evse_cm_atten_char.c.html' title=' evse_cm_atten_char.c '>NEXT</a>]
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- <pre>
- /*====================================================================*
- *
- * Copyright (c) 2013 Qualcomm Atheros, Inc.
- *
- * All rights reserved.
- *
- * Redistribution and use in source and binary forms, with or
- * without modification, are permitted (subject to the limitations
- * in the disclaimer below) provided that the following conditions
- * are met:
- *
- * * Redistributions of source code must retain the above copyright
- * notice, this list of conditions and the following disclaimer.
- *
- * * 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.
- *
- * * Neither the name of Qualcomm Atheros nor the names of
- * its contributors may be used to endorse or promote products
- * derived from this software without specific prior written
- * permission.
- *
- * NO EXPRESS OR IMPLIED LICENSES TO ANY PARTY'S PATENT RIGHTS ARE
- * GRANTED BY THIS LICENSE. THIS SOFTWARE IS PROVIDED BY THE
- * COPYRIGHT HOLDERS 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 COPYRIGHT OWNER
- * 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.
- *
- *--------------------------------------------------------------------*/
- /*====================================================================*
- *
- * evse.c - QCA Electric Vehicle Supply Equipment Emulator;
- *
- * This program, in the current state, is not a finished product;
- * It has been released so that interested parties can begin to
- * see how the SLAC protocol might be implemented;
- *
- * Some key design features are:
- *
- * 1) the use of a channel variable to abstract ISO Layer 2 I/O;
- * the variable is used by functions openchannel, readmessage,
- * sendmessage and closechannel;
- *
- * 2) the use of a message variable to represent an IEEE 802.3
- * Ethernet frame; the variable allows one frame to be used
- * and re-used throughout the program but supports multiple
- * frame buffers if needed;
- *
- * 3) the use of a session variable to support multiple PEV-EVSE
- * interactions without using threads or subrocesses; this has
- * not demonstrated in this version of the program; some more
- * work is needed;
- *
- * 4) the absence of threads or subprocesses so that the program
- * can be ported to hosts without a multi-tasking operating
- * system;
- *
- * 5) lots of debugging messages; these can be suppressed or
- * deleted if not wanted;
- *
- *--------------------------------------------------------------------*/
- /*====================================================================*
- * system header files;
- *--------------------------------------------------------------------*/
- #include <unistd.h>
- #include <stdlib.h>
- #include <string.h>
- #include <limits.h>
- #include <errno.h>
- #include <sys/time.h>
- /*====================================================================*
- * custom header files;
- *--------------------------------------------------------------------*/
- #include "../ether/channel.h"
- #include "../tools/getoptv.h"
- #include "../tools/putoptv.h"
- #include "../tools/memory.h"
- #include "../tools/number.h"
- #include "../tools/config.h"
- #include "../tools/types.h"
- #include "../tools/timer.h"
- #include "../tools/flags.h"
- #include "../tools/error.h"
- #include "../ether/channel.h"
- #include "../iso15118/slac.h"
- /*====================================================================*
- * custom source files;
- *--------------------------------------------------------------------*/
- #ifndef MAKEFILE
- #include "../tools/getoptv.c"
- #include "../tools/putoptv.c"
- #include "../tools/version.c"
- #include "../tools/uintspec.c"
- #include "../tools/hexdecode.c"
- #include "../tools/hexencode.c"
- #include "../tools/hexdump.c"
- #include "../tools/hexout.c"
- #include "../tools/hexstring.c"
- #include "../tools/decdecode.c"
- #include "../tools/decstring.c"
- #include "../tools/todigit.c"
- #include "../tools/strfbits.c"
- #include "../tools/error.c"
- #include "../tools/config.c"
- #endif
- #ifndef MAKEFILE
- #include "../ether/openchannel.c"
- #include "../ether/closechannel.c"
- #include "../ether/readpacket.c"
- #include "../ether/sendpacket.c"
- #include "../ether/channel.c"
- #endif
- #ifndef MAKEFILE
- #include "../plc/Devices.c"
- #endif
- #ifndef MAKEFILE
- #include "../mme/EthernetHeader.c"
- #include "../mme/QualcommHeader.c"
- #include "../mme/HomePlugHeader1.c"
- #include "../mme/UnwantedMessage.c"
- #include "../mme/readmessage.c"
- #include "../mme/sendmessage.c"
- #endif
- #ifndef MAKEFILE
- #include "../iso15118/slac_session.c"
- #include "../iso15118/slac_debug.c"
- #include "../iso15118/evse_cm_slac_param.c"
- #include "../iso15118/evse_cm_start_atten_char.c"
- #include "../iso15118/evse_cm_atten_char.c"
- #include "../iso15118/evse_cm_mnbc_sound.c"
- #include "../iso15118/evse_cm_slac_match.c"
- #include "../iso15118/evse_cm_set_key.c"
- #endif
- /*====================================================================*
- * program constants;
- *--------------------------------------------------------------------*/
- #define PLCDEVICE "PLC"
- #define PROFILE "evse.ini"
- #define SECTION "default"
- #define STATION ""
- #define EVSE_STATE_UNAVAILABLE 0
- #define EVSE_STATE_UNOCCUPIED 1
- #define EVSE_STATE_UNMATCHED 2
- #define EVSE_STATE_MATCHED 3
- #define EVSE_SID "BBBBBBBBBBBBBBBBBBBBBBBBBBBBBBBBBB" // Station Identifier
- #define EVSE_NMK "B59319D7E8157BA001B018669CCEE30D" // HomePlugAV0123
- #define EVSE_NID "026BCBA5354E08" // HomePlugAV0123
- /*====================================================================*
- *
- * void configure ()
- *
- * print default EVSE-HLE configuration file on stdout so that the
- * profile, section and element names match;
- *
- *--------------------------------------------------------------------*/
- static void configure ()
- {
- printf ("# file: %s\n", PROFILE);
- printf ("# ====================================================================\n");
- printf ("# EVSE-HLE initiaization;\n");
- printf ("# --------------------------------------------------------------------\n");
- printf ("[%s]\n", SECTION);
- printf ("station identifier = %s\n", EVSE_SID);
- printf ("network membership key = %s\n", EVSE_NMK);
- printf ("network identifier = %s\n", EVSE_NID);
- printf ("number of sounds = %d\n", SLAC_MSOUNDS);
- printf ("time to sound = %d\n", SLAC_TIMETOSOUND);
- printf ("response type = %d\n", SLAC_RESPONSE_TYPE);
- printf ("settle time = %d\n", SLAC_SETTLETIME);
- printf ("charge time = %d\n", SLAC_CHARGETIME);
- return;
- }
- /*====================================================================*
- *
- * char void initialize (struct session * session, char const * profile, char const * section)
- *
- * read EVSE-HLE configuration profile; initialize session variable;
- *
- *--------------------------------------------------------------------*/
- static void initialize (struct session * session, char const * profile, char const * section)
- {
- session->next = session->prev = session;
- hexencode (session->EVSE_ID, sizeof (session->EVSE_ID), configstring (profile, section, "StationIdentifier", EVSE_SID));
- hexencode (session->NMK, sizeof (session->NMK), configstring (profile, section, "NetworkMembershipKey", EVSE_NMK));
- hexencode (session->NID, sizeof (session->NID), configstring (profile, section, "NetworkIdentifier", EVSE_NID));
- session->NUM_SOUNDS = confignumber_range (profile, section, "NumberOfSounds", SLAC_MSOUNDS, 0, UCHAR_MAX);
- session->TIME_OUT = confignumber_range (profile, section, "TimeToSound", SLAC_TIMETOSOUND, 0, UCHAR_MAX);
- session->RESP_TYPE = confignumber_range (profile, section, "ResponseType", SLAC_RESPONSE_TYPE, 0, UCHAR_MAX);
- session->chargetime = confignumber_range (profile, section, "ChargeTime", SLAC_CHARGETIME, 0, UINT_MAX);
- session->settletime = confignumber_range (profile, section, "SettleTime", SLAC_SETTLETIME, 0, UINT_MAX);
- memcpy (session->original_nmk, session->NMK, sizeof (session->original_nmk));
- memcpy (session->original_nid, session->NID, sizeof (session->original_nid));
- session->state = EVSE_STATE_UNOCCUPIED;
- slac_session (session);
- return;
- }
- /*====================================================================*
- *
- * signed identifier (struct session * session, struct channel * channel);
- *
- * copy channel host address to session EVSE MAC address; set session
- * EVSE identifier to zeros;
- *
- *--------------------------------------------------------------------*/
- static signed identifier (struct session * session, struct channel * channel)
- {
- memcpy (session->EVSE_MAC, channel->host, sizeof (session->EVSE_MAC));
- return (0);
- }
- /*====================================================================*
- *
- * void UnoccupiedState (struct session * session, struct channel * channel, struct message * message);
- *
- *--------------------------------------------------------------------*/
- static void UnoccupiedState (struct session * session, struct channel * channel, struct message * message)
- {
- slac_session (session);
- slac_debug (session, 0, __func__, "Listening ...");
- while (evse_cm_slac_param (session, channel, message));
- session->state = EVSE_STATE_UNMATCHED;
- return;
- }
- /*====================================================================*
- *
- * void MatchingState (struct session * session, struct channel * channel, struct message * message);
- *
- * the cm_start_atten_char message establishes msound count and
- * timeout;
- *
- *--------------------------------------------------------------------*/
- static void UnmatchedState (struct session * session, struct channel * channel, struct message * message)
- {
- slac_session (session);
- slac_debug (session, 0, __func__, "Sounding ...");
- if (evse_cm_start_atten_char (session, channel, message))
- {
- session->state = EVSE_STATE_UNOCCUPIED;
- return;
- }
- if (evse_cm_mnbc_sound (session, channel, message))
- {
- session->state = EVSE_STATE_UNOCCUPIED;
- return;
- }
- if (evse_cm_atten_char (session, channel, message))
- {
- session->state = EVSE_STATE_UNOCCUPIED;
- return;
- }
- slac_debug (session, 0, __func__, "Matching ...");
- if (evse_cm_slac_match (session, channel, message))
- {
- session->state = EVSE_STATE_UNOCCUPIED;
- return;
- }
- session->state = EVSE_STATE_MATCHED;
- return;
- }
- /*====================================================================*
- *
- * void MatchedState (struct session * session, struct channel * channel, struct message * message);
- *
- *--------------------------------------------------------------------*/
- static void MatchedState (struct session * session, struct channel * channel, struct message * message)
- {
- slac_debug (session, 0, __func__, "Connecting ...");
- #if SLAC_AVLN_EVSE
- if (evse_cm_set_key (session, channel, message))
- {
- session->state = EVSE_STATE_UNOCCUPIED;
- return;
- }
- sleep (session->settletime);
- #endif
- #if SLAC_AVLN_PEV
- slac_debug (session, 0, __func__, "waiting for pev to settle ...");
- sleep (session->settletime);
- #endif
- slac_debug (session, 0, __func__, "Charging (%d) ...\n\n", session->counter++);
- sleep (session->chargetime);
- slac_debug (session, 0, __func__, "Disconnecting ...");
- #if SLAC_AVLN_EVSE
- memcpy (session->NMK, session->original_nmk, sizeof (session->NMK));
- memcpy (session->NID, session->original_nid, sizeof (session->NID));
- if (evse_cm_set_key (session, channel, message))
- {
- session->state = EVSE_STATE_UNOCCUPIED;
- return;
- }
- sleep (session->settletime);
- #endif
- #if SLAC_AVLN_PEV
- slac_debug (session, 0, __func__, "waiting for pev to settle ...");
- sleep (session->settletime);
- #endif
- session->state = EVSE_STATE_UNOCCUPIED;
- return;
- }
- /*====================================================================*
- *
- * int main (int argc, char const * argv[]);
- *
- *--------------------------------------------------------------------*/
- int main (int argc, char const * argv [])
- {
- extern struct channel channel;
- static char const * optv [] =
- {
- "cCdi:p:qs:t:vx",
- "",
- "Electric Vehicle Supply Equipment Emulator",
- "c\tprint template configuration file on stdout",
- "C\tstop on count mismatch",
- "d\tdisplay debug information",
- #if defined (WINPCAP) || defined (LIBPCAP)
- "i n\thost interface is (n) [" LITERAL (CHANNEL_ETHNUMBER) "]",
- #else
- "i s\thost interface is (s) [" LITERAL (CHANNEL_ETHDEVICE) "]",
- #endif
- "p s\tconfiguration profile is (s) [" LITERAL (PROFILE) "]",
- "s s\tconfiguration section is (s) [" LITERAL (SECTION) "]",
- "q\tquiet mode",
- "t n\tread timeout is (n) milliseconds [" LITERAL (SLAC_TIMEOUT) "]",
- "v\tverbose mode",
- "x\texit on error",
- (char const *) (0)
- };
- struct session session;
- struct message message;
- char const * profile = PROFILE;
- char const * section = SECTION;
- signed c;
- memset (& session, 0, sizeof (session));
- memset (& message, 0, sizeof (message));
- channel.timeout = SLAC_TIMEOUT;
- if (getenv (PLCDEVICE))
- {
- #if defined (WINPCAP) || defined (LIBPCAP)
- channel.ifindex = atoi (getenv (PLCDEVICE));
- #else
- channel.ifname = strdup (getenv (PLCDEVICE));
- #endif
- }
- optind = 1;
- while (~ (c = getoptv (argc, argv, optv)))
- {
- switch (c)
- {
- case 'c':
- configure ();
- return (0);
- case 'C':
- _setbits (session.flags, SLAC_COMPARE);
- break;
- case 'd':
- _setbits (session.flags, (SLAC_VERBOSE | SLAC_SESSION));
- break;
- case 'i':
- #if defined (WINPCAP) || defined (LIBPCAP)
- channel.ifindex = atoi (optarg);
- #else
- channel.ifname = optarg;
- #endif
- break;
- case 'p':
- profile = optarg;
- break;
- case 's':
- section = optarg;
- break;
- case 'q':
- _setbits (channel.flags, CHANNEL_SILENCE);
- _setbits (session.flags, SLAC_SILENCE);
- break;
- case 't':
- channel.timeout = (signed) (uintspec (optarg, 0, UINT_MAX));
- break;
- case 'v':
- _setbits (channel.flags, CHANNEL_VERBOSE);
- break;
- case 'x':
- session.exit = session.exit? 0: 1;
- break;
- default:
- break;
- }
- }
- argc -= optind;
- argv += optind;
- if (argc)
- {
- slac_debug (& session, 1, __func__, ERROR_TOOMANY);
- }
- openchannel (& channel);
- initialize (& session, profile, section);
- identifier (& session, & channel);
- if (evse_cm_set_key (& session, & channel, & message))
- {
- slac_debug (& session, 1, __func__, "Can't set key.");
- }
- sleep (session.settletime);
- while (session.state)
- {
- if (session.state == EVSE_STATE_UNOCCUPIED)
- {
- UnoccupiedState (& session, & channel, & message);
- continue;
- }
- if (session.state == EVSE_STATE_UNMATCHED)
- {
- UnmatchedState (& session, & channel, & message);
- continue;
- }
- if (session.state == EVSE_STATE_MATCHED)
- {
- MatchedState (& session, & channel, & message);
- continue;
- }
- slac_debug (& session, 1, __func__, "Illegal state!");
- }
- closechannel (& channel);
- exit (0);
- }
- </pre>
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