2 * Copyright (c) 2003 The Regents of The University of Michigan
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30 * Reference counted class containing ethernet packet data
33 #ifndef __ETHERPKT_HH__
34 #define __ETHERPKT_HH__
39 #include "sim/host.hh"
40 #include "base/refcnt.hh"
49 uint32_t dest_ip_addr;
54 /** Ethernet header struct for casting purposes */
57 uint8_t dest[EADDR_LEN];
58 uint8_t src[EADDR_LEN];
68 uint16_t flags_frag_offset;
73 uint32_t dest_ip_addr;
75 uint8_t *transport_header;
80 uint16_t src_port_num;
81 uint16_t dest_port_num;
95 uint16_t src_port_num;
96 uint16_t dest_port_num;
103 * Reference counted class containing ethernet packet data
105 class EtherPacket : public RefCounted
112 EtherPacket() : data(NULL), length(0) {}
113 EtherPacket(std::auto_ptr<uint8_t> d, int l)
114 : data(d.release()), length(l) {}
115 ~EtherPacket() { if (data) delete [] data; }
118 bool IsUnicast() { return data[0] == 0x00; }
119 bool IsMulticast() { return data[0] == 0x01; }
120 bool IsBroadcast() { return data[0] == 0xff; }
122 ip_header *getIpHdr() { return (ip_header *) (data + 14); }
124 void *getTransportHdr() {
125 ip_header *ip = getIpHdr();
126 return (void *) (ip + (ip->vers_len & 0xf));
130 typedef RefCountingPtr<EtherPacket> PacketPtr;
132 void serialize(std::ostream &os);
133 void unserialize(Checkpoint *cp, const std::string §ion);
136 typedef RefCountingPtr<EtherPacket> PacketPtr;
138 #endif // __ETHERPKT_HH__