256     udpPackets.ip.tot_len = udpPackets.udp.len;  in SendToDhcpPacket()
257     udpPackets.ip.protocol = IPPROTO_UDP;  in SendToDhcpPacket()
258     udpPackets.ip.saddr = srcIp;  in SendToDhcpPacket()
259     udpPackets.ip.daddr = destIp;  in SendToDhcpPacket()
266     udpPackets.ip.ihl = sizeof(udpPackets.ip) >> DHCP_UINT16_BYTES;  in SendToDhcpPacket()
267     udpPackets.ip.version = IPVERSION;  in SendToDhcpPacket()
268     udpPackets.ip.tot_len = htons(sendLen);  in SendToDhcpPacket()
269     udpPackets.ip.ttl = IPDEFTTL;  in SendToDhcpPacket()
270     udpPackets.ip.check = GetCheckSum((uint16_t *)&(udpPackets.ip), sizeof(udpPackets.ip));  in SendToDhcpPacket()
356     if ((pPacket->ip.protocol != IPPROTO_UDP) || (pPacket->ip.version != IPVERSION)) {  in CheckUdpPacket()
358             pPacket->ip.protocol, pPacket->ip.version);  in CheckUdpPacket()
362     uint32_t uIhl = (uint32_t)(sizeof(pPacket->ip) >> DHCP_UINT16_BYTES);  in CheckUdpPacket()
363     if (pPacket->ip.ihl != uIhl) {  in CheckUdpPacket()
364 …eckUdpPacket() failed, pPacket->ip.ihl:%{public}u error, uIhl:%{public}u!", pPacket->ip.ihl, uIhl);  in CheckUdpPacket()
374     uint16_t uLen = (uint16_t)(totLen - (int)sizeof(pPacket->ip));  in CheckUdpPacket()
395     uint16_t uCheck = pPacket->ip.check;  in CheckPacketIpSum()
396     pPacket->ip.check = 0;  in CheckPacketIpSum()
397     uint16_t uCheckSum = GetCheckSum((uint16_t *)&(pPacket->ip), sizeof(pPacket->ip));  in CheckPacketIpSum()
416     u_int32_t source = pPacket->ip.saddr;  in CheckPacketUdpSum()
417     u_int32_t dest = pPacket->ip.daddr;  in CheckPacketUdpSum()
418     if (memset_s(&pPacket->ip, sizeof(pPacket->ip), 0, sizeof(pPacket->ip)) != EOK) {  in CheckPacketUdpSum()
422     pPacket->ip.protocol = IPPROTO_UDP;  in CheckPacketUdpSum()
423     pPacket->ip.saddr = source;  in CheckPacketUdpSum()
424     pPacket->ip.daddr = dest;  in CheckPacketUdpSum()
425     pPacket->ip.tot_len = pPacket->udp.len;  in CheckPacketUdpSum()
447     int nRet = CheckReadBytes(nBytes, (int)ntohs(udpPackets.ip.tot_len));  in GetDhcpRawPacket()
453     nBytes = (int)ntohs(udpPackets.ip.tot_len);  in GetDhcpRawPacket()
463     int nDhcpPacket = nBytes - (int)(sizeof(udpPackets.ip) + sizeof(udpPackets.udp));  in GetDhcpRawPacket()