2.18.x
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| VAPI API Reference Documentation 2.18.x |
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/*================================================================================= IPV6 example This is a VAPI based code implementation of 2 functions which can be used to configure a device and a conention for IP6 operations. =================================================================================*/ #include <arpa/inet.h> /* for inet_pton function */ #include <linux/if_ether.h> /* for ETH_P_IPV6 ETH_P_IPV6 */ #include <vapi.h> #include <msp.h> #include <comcerto-ipv6-types.h> #include <comcerto-ethernet-interface-types.h> #define DEVICE_IPV4 "192.168.32.222" #define DEVICE_IPV6 "fec0:0:0:1f::3" /*=================================================================================*/ /* * This function buils a multicommand to set a MSP channel in IPv6 mode and the IPv6 header. * The IPv6 source and destination are provided in IPv6 format string such as "fec0:0:0:1f::3". * We make the assumption that a endpoint structure contains some information such as UDP ports. */ /*=================================================================================*/ int set_ipv6_udp_parameters(int connid, char *ipv6_src_addr, char *ipv6_dst_addr, unsigned short src_udp, unsigned short dst_udp) { int result; struct _SET_IPV6_HDR_CHANNEL ipv6_hdr; /* this struct is defined in comcerto-ipv6-types.h */ void *config_message; U32 response_len = DEFAULT_FIFO_MAX_SIZE; U8 device_response [DEFAULT_FIFO_MAX_SIZE]; /* allocate a message */ config_message = VAPI_AllocateMessage(DEFAULT_FIFO_MAX_SIZE); if (config_message == NULL) return -1; /* add the command channel mode to the message (IPV6)*/ result = VAPI_SetMessage(config_message, CMD_CLASS_CONF_CHANNEL, CMD_TYPE_CONF_CHANGE, FC_SET_CHANNEL_IP_MODE, 1, (U16 *) 0x0001); if(result != SUCCESS) goto err_free; memset(&ipv6_hdr, 0, sizeof(struct _SET_IPV6_HDR_CHANNEL)); ipv6_hdr.param_4.bits.serviceid = SET_IPV6_HDR_CHANNEL_SERVICEID_DEFAULTPKT; ipv6_hdr.param_5.word = 0x0060; /*Traffic class bit 0:3, version, flow label bits 0:3, traffic class bit 4:7*/ ipv6_hdr.param_6.word = 0x0000; /*flow label bits 4:11 & 12:19*/ ipv6_hdr.payload_len = 0x0000; /*len (overwritten) */ ipv6_hdr.param_8.bits.next_header_id = 0x11; ipv6_hdr.param_8.bits.hop_limit = 0x80; /* Set the IPv6 source Address (place it at the 1st U16 of the IPv6 src addr in the ipv6_hdr struct */ inet_pton(AF_INET6, ipv6_src_addr, &ipv6_hdr.ipv6_src_15_0); /* Set the IPv6 destination Address (place it at the 1st U16 of the IPv6 dst addr in the ipv6_hdr struct */ inet_pton(AF_INET6, ipv6_dst_addr, &ipv6_hdr.ipv6_dst_15_0); /* set UDP ports */ ipv6_hdr.uh_sport = htons(src_udp); ipv6_hdr.uh_dport = htons(dst_udp); ipv6_hdr.uh_ulen = 0x0000; ipv6_hdr.uh_sum = 0x0000; /* Add the IPv6 header to the command */ result = VAPI_SetMessageFromBuffer(config_message, CMD_CLASS_CONF_CHANNEL, CMD_TYPE_CONF_CHANGE, FC_SET_IP_HDR_CHANNEL, sizeof(struct _SET_IPV6_HDR_CHANNEL)/2, (U16 *)&ipv6_hdr); if(result != SUCCESS) goto err_free; /* send the command to the device, the response is stored in device_response */ result = VAPI_SendConnectionMessage(connid, (SMsg *)config_message, NULL, device_response, &response_len); err_free: VAPI_FreeMessage (config_message); return result; } /*=================================================================================*/ /* * This function configures the Comcerto device to operates in IPv4 and IPv6 mode. * The IPv4 address is provided in IPv4 format string such as "192.168.32.222". * The IPv6 address is provided in IPv6 format string such as "fec0:0:0:1f::3". */ /*=================================================================================*/ int network_parameters_initialisation(int device_id, unsigned char *device_mac, unsigned char *default_dest_mac) { int result; SIpAddrInfo ip_info; U16 ipv6_addr[8]; void *config_message; U32 response_len = DEFAULT_FIFO_MAX_SIZE; U8 device_response [DEFAULT_FIFO_MAX_SIZE]; struct _SET_ETH_HDR eth_hdr; /* allocate a message */ config_message = VAPI_AllocateMessage(DEFAULT_FIFO_MAX_SIZE); if (config_message == NULL) return -1; /* configure the ethernet header for IPv4 operation */ result = VAPI_SetEthMac(device_id, CMD_LEVEL_DEVICE, device_mac, default_dest_mac, NULL); if(result != SUCCESS) goto err_free; /* prepare the ethernet header for IPv6 operation */ memset(ð_hdr, 0x00, sizeof(struct _SET_ETH_HDR)); eth_hdr.param_4.bits.protocol = SET_ETH_HDR_PROTOCOL_IP_V6; eth_hdr.param_4.bits.action = SET_ETH_HDR_ACTION_REGISTER; memcpy(&(eth_hdr.assignedmac), device_mac, 6); memcpy(&(eth_hdr.hostmac), default_dest_mac, 6); eth_hdr.type = htons(ETH_P_IPV6); /* Set the ETH_HDR for IPv6 */ result = VAPI_SetMessageFromBuffer(config_message, CMD_CLASS_CONF_DEVICE, CMD_TYPE_CONF_CHANGE, FC_SET_ETH_HDR, 8, (U16 *)ð_hdr); /*8 parameters to send*/ if(result != SUCCESS) goto err_free; /* send the ETH_HDR for IPv6 command */ result = VAPI_SendDeviceMessage(device_id, (SMsg *)config_message, NULL, device_response, &response_len); if(result != SUCCESS) goto err_free; /* set IPv4*/ ip_info.ucNumOfSrcIpAddr = 1; ip_info.bIsMultipleMode = 0; ip_info.ucEncapsulation = 2; ip_info.ucChkSumVerification = 1; /* Set the IPv4 device Address*/ inet_pton(AF_INET, DEVICE_IPV4, ip_info.auiDevIPAddress); /* configure the IPv4 address. this command also configures the IP_SERVICE_CONFIG, ARP_SERVICE_CONFIG,ICMP_SERVICE_CONFIG*/ result = VAPI_SetDeviceIPAddr(device_id, &ip_info, NULL); if (result != SUCCESS) goto err_free; /* reuse the config_message */ VAPI_InitMessage (config_message); /* Set the IPv6 device Address*/ inet_pton(AF_INET6, DEVICE_IPV6, ipv6_addr); result = VAPI_SetMessageFromBuffer(config_message, CMD_CLASS_CONF_DEVICE, CMD_TYPE_CONF_CHANGE, FC_IP_ADDRESS_V6, 8, ipv6_addr); if(result != SUCCESS) goto err_free; /* send IPv6 address command*/ result = VAPI_SendDeviceMessage(device_id, (SMsg *)config_message, NULL, device_response, &response_len); err_free: VAPI_FreeMessage (config_message); return result; }