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#include <dlfcn.h> |
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#include <dlfcn.h> |
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#include <iomanip> |
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#include <iomanip> |
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#include <netinet/ip.h> |
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#include <arpa/inet.h> // ntohl/htonl |
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#include <netinet/tcp.h> |
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#include <netinet/in.h> // "Some systems require the inclusion of <netinet/in.h> instead" (man byteorder(3)) |
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NS_LOG_COMPONENT_DEFINE ("NscTcpL4Protocol"); |
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NS_LOG_COMPONENT_DEFINE ("NscTcpL4Protocol"); |
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void NscTcpL4Protocol::send_callback(const void* data, int datalen) |
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void NscTcpL4Protocol::send_callback(const void* data, int datalen) |
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{ |
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{ |
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Ptr<Packet> p; |
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Ptr<Packet> p; |
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const uint32_t *ipHdr = reinterpret_cast<const uint32_t *>(data); |
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const uint8_t *rawdata = reinterpret_cast<const uint8_t *>(data); |
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NS_ASSERT(datalen > (int)sizeof(struct iphdr)); |
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NS_ASSERT (datalen > 20); |
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rawdata += 20; // skips stacks IP header |
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const uint8_t *rawdata = reinterpret_cast<const uint8_t *>(data); |
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rawdata += sizeof(struct iphdr); |
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const struct iphdr *ipHdr = reinterpret_cast<const struct iphdr *>(data); |
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// create packet, without IP header. The TCP header is not touched. |
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// create packet, without IP header. The TCP header is not touched. |
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// Not using the IP header makes integration easier, but it destroys |
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// Not using the IP header makes integration easier, but it destroys |
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// eg. ECN. |
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// eg. ECN. |
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p = Create<Packet> (rawdata, datalen - sizeof(struct iphdr)); |
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p = Create<Packet> (rawdata, datalen - 20); |
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Ipv4Address saddr(ntohl(ipHdr->saddr)); |
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Ipv4Address saddr(ntohl(ipHdr[3])); |
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Ipv4Address daddr(ntohl(ipHdr->daddr)); |
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Ipv4Address daddr(ntohl(ipHdr[4])); |
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Ptr<Ipv4L3Protocol> ipv4 = m_node->GetObject<Ipv4L3Protocol> (); |
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Ptr<Ipv4L3Protocol> ipv4 = m_node->GetObject<Ipv4L3Protocol> (); |
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if (ipv4 != 0) |
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if (ipv4 != 0) |