int main( int argc, char *argv[]) { uint16_t pdu_len = 0; /* argv has the "COM4" or some other device */ if (argc > 1) { Network_Interface = argv[1]; } dlmstp_set_baud_rate(38400); dlmstp_set_mac_address(0x05); dlmstp_set_max_info_frames(DEFAULT_MAX_INFO_FRAMES); dlmstp_set_max_master(DEFAULT_MAX_MASTER); dlmstp_init(Network_Interface); /* forever task */ for (;;) { pdu_len = dlmstp_receive(NULL, NULL, 0, INFINITE); #if 0 MSTP_Create_And_Send_Frame(&MSTP_Port, FRAME_TYPE_TEST_REQUEST, MSTP_Port.SourceAddress, MSTP_Port.This_Station, NULL, 0); #endif } return 0; }
/** Initialize the DataLink configuration from Environment variables, * or else to defaults. * @ingroup DataLink * The items configured depend on which BACDL_ the code is built for, * eg, BACDL_BIP. * * For most items, checks first for an environment variable, and, if * found, uses that to set the item's value. Otherwise, will set * to a default value. * * The Environment Variables, by BACDL_ type, are: * - BACDL_ALL: (the general-purpose solution) * - BACNET_DATALINK to set which BACDL_ type we are using. * - (Any): * - BACNET_APDU_TIMEOUT - set this value in milliseconds to change * the APDU timeout. APDU Timeout is how much time a client * waits for a response from a BACnet device. * - BACNET_APDU_RETRIES - indicate the maximum number of times that * an APDU shall be retransmitted. * - BACNET_IFACE - set this value to dotted IP address (Windows) of * the interface (see ipconfig command on Windows) for which you * want to bind. On Linux, set this to the /dev interface * (i.e. eth0, arc0). Default is eth0 on Linux, and the default * interface on Windows. Hence, if there is only a single network * interface on Windows, the applications will choose it, and this * setting will not be needed. * - BACDL_BIP: (BACnet/IP) * - BACNET_IP_PORT - UDP/IP port number (0..65534) used for BACnet/IP * communications. Default is 47808 (0xBAC0). * - BACNET_BBMD_PORT - UDP/IP port number (0..65534) used for Foreign * Device Registration. Defaults to 47808 (0xBAC0). * - BACNET_BBMD_TIMETOLIVE - number of seconds used in Foreign Device * Registration (0..65535). Defaults to 60000 seconds. * - BACNET_BBMD_ADDRESS - dotted IPv4 address of the BBMD or Foreign * Device Registrar. * - BACDL_MSTP: (BACnet MS/TP) * - BACNET_MAX_INFO_FRAMES * - BACNET_MAX_MASTER * - BACNET_MSTP_BAUD * - BACNET_MSTP_MAC */ void dlenv_init( void) { char *pEnv = NULL; #if defined(BACDL_ALL) pEnv = getenv("BACNET_DATALINK"); if (pEnv) { datalink_set(pEnv); } else { datalink_set(NULL); } #endif #if defined(BACDL_BIP) #if defined(BIP_DEBUG) BIP_Debug = true; #endif pEnv = getenv("BACNET_IP_PORT"); if (pEnv) { bip_set_port(htons((uint16_t) strtol(pEnv, NULL, 0))); } else { /* BIP_Port is statically initialized to 0xBAC0, * so if it is different, then it was programmatically altered, * and we shouldn't just stomp on it here. * Unless it is set below 1024, since: * "The range for well-known ports managed by the IANA is 0-1023." */ if (ntohs(bip_get_port()) < 1024) bip_set_port(htons(0xBAC0)); } #elif defined(BACDL_MSTP) pEnv = getenv("BACNET_MAX_INFO_FRAMES"); if (pEnv) { dlmstp_set_max_info_frames(strtol(pEnv, NULL, 0)); } else { dlmstp_set_max_info_frames(1); } pEnv = getenv("BACNET_MAX_MASTER"); if (pEnv) { dlmstp_set_max_master(strtol(pEnv, NULL, 0)); } else { dlmstp_set_max_master(127); } pEnv = getenv("BACNET_MSTP_BAUD"); if (pEnv) { dlmstp_set_baud_rate(strtol(pEnv, NULL, 0)); } else { dlmstp_set_baud_rate(38400); } pEnv = getenv("BACNET_MSTP_MAC"); if (pEnv) { dlmstp_set_mac_address(strtol(pEnv, NULL, 0)); } else { dlmstp_set_mac_address(127); } #endif pEnv = getenv("BACNET_APDU_TIMEOUT"); if (pEnv) { apdu_timeout_set((uint16_t) strtol(pEnv, NULL, 0)); } else { #if defined(BACDL_MSTP) apdu_timeout_set(60000); #endif } pEnv = getenv("BACNET_APDU_RETRIES"); if (pEnv) { apdu_retries_set((uint8_t) strtol(pEnv, NULL, 0)); } if (!datalink_init(getenv("BACNET_IFACE"))) { exit(1); } #if (MAX_TSM_TRANSACTIONS) pEnv = getenv("BACNET_INVOKE_ID"); if (pEnv) { tsm_invokeID_set((uint8_t) strtol(pEnv, NULL, 0)); } #endif dlenv_register_as_foreign_device(); }