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-/*
- * Copyright (c) 2002-2005 The Regents of The University of Michigan
- * All rights reserved.
- *
- * Redistribution and use in source and binary forms, with or without
- * modification, are permitted provided that the following conditions are
- * met: redistributions of source code must retain the above copyright
- * notice, this list of conditions and the following disclaimer;
- * redistributions in binary form must reproduce the above copyright
- * notice, this list of conditions and the following disclaimer in the
- * documentation and/or other materials provided with the distribution;
- * neither the name of the copyright holders nor the names of its
- * contributors may be used to endorse or promote products derived from
- * this software without specific prior written permission.
- *
- * THIS SOFTWARE IS PROVIDED BY THE COPYRIGHT HOLDERS AND CONTRIBUTORS
- * "AS IS" AND ANY EXPRESS OR IMPLIED WARRANTIES, INCLUDING, BUT NOT
- * LIMITED TO, THE IMPLIED WARRANTIES OF MERCHANTABILITY AND FITNESS FOR
- * A PARTICULAR PURPOSE ARE DISCLAIMED. IN NO EVENT SHALL THE COPYRIGHT
- * OWNER OR CONTRIBUTORS BE LIABLE FOR ANY DIRECT, INDIRECT, INCIDENTAL,
- * SPECIAL, EXEMPLARY, OR CONSEQUENTIAL DAMAGES (INCLUDING, BUT NOT
- * LIMITED TO, PROCUREMENT OF SUBSTITUTE GOODS OR SERVICES; LOSS OF USE,
- * DATA, OR PROFITS; OR BUSINESS INTERRUPTION) HOWEVER CAUSED AND ON ANY
- * THEORY OF LIABILITY, WHETHER IN CONTRACT, STRICT LIABILITY, OR TORT
- * (INCLUDING NEGLIGENCE OR OTHERWISE) ARISING IN ANY WAY OUT OF THE USE
- * OF THIS SOFTWARE, EVEN IF ADVISED OF THE POSSIBILITY OF SUCH DAMAGE.
- */
-
-#ifndef __BASE_INET_HH__
-#define __BASE_INET_HH__
-
-#include <iosfwd>
-#include <string>
-#include <utility>
-#include <vector>
-
-#include "base/range.hh"
-#include "dev/etherpkt.hh"
-#include "sim/host.hh"
-
-#include "dnet/os.h"
-#include "dnet/eth.h"
-#include "dnet/ip.h"
-#include "dnet/ip6.h"
-#include "dnet/addr.h"
-#include "dnet/arp.h"
-#include "dnet/icmp.h"
-#include "dnet/tcp.h"
-#include "dnet/udp.h"
-#include "dnet/intf.h"
-#include "dnet/route.h"
-#include "dnet/fw.h"
-#include "dnet/blob.h"
-#include "dnet/rand.h"
-
-namespace Net {
-
-/*
- * Ethernet Stuff
- */
-struct EthAddr : protected eth_addr
-{
- protected:
- void parse(const std::string &addr);
-
- public:
- EthAddr();
- EthAddr(const uint8_t ea[ETH_ADDR_LEN]);
- EthAddr(const eth_addr &ea);
- EthAddr(const std::string &addr);
- const EthAddr &operator=(const eth_addr &ea);
- const EthAddr &operator=(const std::string &addr);
-
- int size() const { return sizeof(eth_addr); }
-
- const uint8_t *bytes() const { return &data[0]; }
- uint8_t *bytes() { return &data[0]; }
-
- const uint8_t *addr() const { return &data[0]; }
- bool unicast() const { return data[0] == 0x00; }
- bool multicast() const { return data[0] == 0x01; }
- bool broadcast() const { return data[0] == 0xff; }
- std::string string() const;
-
- operator uint64_t() const
- {
- uint64_t reg = 0;
- reg |= ((uint64_t)data[0]) << 40;
- reg |= ((uint64_t)data[1]) << 32;
- reg |= ((uint64_t)data[2]) << 24;
- reg |= ((uint64_t)data[3]) << 16;
- reg |= ((uint64_t)data[4]) << 8;
- reg |= ((uint64_t)data[5]) << 0;
- return reg;
- }
-
-};
-
-std::ostream &operator<<(std::ostream &stream, const EthAddr &ea);
-bool operator==(const EthAddr &left, const EthAddr &right);
-
-struct EthHdr : public eth_hdr
-{
- uint16_t type() const { return ntohs(eth_type); }
- const EthAddr &src() const { return *(EthAddr *)&eth_src; }
- const EthAddr &dst() const { return *(EthAddr *)&eth_dst; }
-
- int size() const { return sizeof(eth_hdr); }
-
- const uint8_t *bytes() const { return (const uint8_t *)this; }
- const uint8_t *payload() const { return bytes() + size(); }
- uint8_t *bytes() { return (uint8_t *)this; }
- uint8_t *payload() { return bytes() + size(); }
-};
-
-class EthPtr
-{
- protected:
- friend class IpPtr;
- PacketPtr p;
-
- public:
- EthPtr() {}
- EthPtr(const PacketPtr &ptr) : p(ptr) { }
-
- EthHdr *operator->() { return (EthHdr *)p->data; }
- EthHdr &operator*() { return *(EthHdr *)p->data; }
- operator EthHdr *() { return (EthHdr *)p->data; }
-
- const EthHdr *operator->() const { return (const EthHdr *)p->data; }
- const EthHdr &operator*() const { return *(const EthHdr *)p->data; }
- operator const EthHdr *() const { return (const EthHdr *)p->data; }
-
- const EthPtr &operator=(const PacketPtr &ptr) { p = ptr; return *this; }
-
- const PacketPtr packet() const { return p; }
- PacketPtr packet() { return p; }
- bool operator!() const { return !p; }
- operator bool() const { return p; }
-};
-
-/*
- * IP Stuff
- */
-struct IpOpt;
-struct IpHdr : public ip_hdr
-{
- uint8_t version() const { return ip_v; }
- uint8_t hlen() const { return ip_hl * 4; }
- uint8_t tos() const { return ip_tos; }
- uint16_t len() const { return ntohs(ip_len); }
- uint16_t id() const { return ntohs(ip_id); }
- uint16_t frag_flags() const { return ntohs(ip_off) >> 13; }
- uint16_t frag_off() const { return ntohs(ip_off) & 0x1fff; }
- uint8_t ttl() const { return ip_ttl; }
- uint8_t proto() const { return ip_p; }
- uint16_t sum() const { return ip_sum; }
- uint32_t src() const { return ntohl(ip_src); }
- uint32_t dst() const { return ntohl(ip_dst); }
-
- void sum(uint16_t sum) { ip_sum = sum; }
-
- bool options(std::vector<const IpOpt *> &vec) const;
-
- int size() const { return hlen(); }
- const uint8_t *bytes() const { return (const uint8_t *)this; }
- const uint8_t *payload() const { return bytes() + size(); }
- uint8_t *bytes() { return (uint8_t *)this; }
- uint8_t *payload() { return bytes() + size(); }
-};
-
-class IpPtr
-{
- protected:
- friend class TcpPtr;
- friend class UdpPtr;
- PacketPtr p;
-
- const IpHdr *h() const
- { return (const IpHdr *)(p->data + sizeof(eth_hdr)); }
- IpHdr *h() { return (IpHdr *)(p->data + sizeof(eth_hdr)); }
-
- void set(const PacketPtr &ptr)
- {
- EthHdr *eth = (EthHdr *)ptr->data;
- if (eth->type() == ETH_TYPE_IP)
- p = ptr;
- else
- p = 0;
- }
-
- public:
- IpPtr() {}
- IpPtr(const PacketPtr &ptr) { set(ptr); }
- IpPtr(const EthPtr &ptr) { set(ptr.p); }
- IpPtr(const IpPtr &ptr) : p(ptr.p) { }
-
- IpHdr *operator->() { return h(); }
- IpHdr &operator*() { return *h(); }
- operator IpHdr *() { return h(); }
-
- const IpHdr *operator->() const { return h(); }
- const IpHdr &operator*() const { return *h(); }
- operator const IpHdr *() const { return h(); }
-
- const IpPtr &operator=(const PacketPtr &ptr) { set(ptr); return *this; }
- const IpPtr &operator=(const EthPtr &ptr) { set(ptr.p); return *this; }
- const IpPtr &operator=(const IpPtr &ptr) { p = ptr.p; return *this; }
-
- const PacketPtr packet() const { return p; }
- PacketPtr packet() { return p; }
- bool operator!() const { return !p; }
- operator bool() const { return p; }
- operator bool() { return p; }
-};
-
-uint16_t cksum(const IpPtr &ptr);
-
-struct IpOpt : public ip_opt
-{
- uint8_t type() const { return opt_type; }
- uint8_t typeNumber() const { return IP_OPT_NUMBER(opt_type); }
- uint8_t typeClass() const { return IP_OPT_CLASS(opt_type); }
- uint8_t typeCopied() const { return IP_OPT_COPIED(opt_type); }
- uint8_t len() const { return IP_OPT_TYPEONLY(type()) ? 1 : opt_len; }
-
- bool isNumber(int num) const { return typeNumber() == IP_OPT_NUMBER(num); }
- bool isClass(int cls) const { return typeClass() == IP_OPT_CLASS(cls); }
- bool isCopied(int cpy) const { return typeCopied() == IP_OPT_COPIED(cpy); }
-
- const uint8_t *data() const { return opt_data.data8; }
- void sec(ip_opt_data_sec &sec) const;
- void lsrr(ip_opt_data_rr &rr) const;
- void ssrr(ip_opt_data_rr &rr) const;
- void ts(ip_opt_data_ts &ts) const;
- uint16_t satid() const { return ntohs(opt_data.satid); }
- uint16_t mtup() const { return ntohs(opt_data.mtu); }
- uint16_t mtur() const { return ntohs(opt_data.mtu); }
- void tr(ip_opt_data_tr &tr) const;
- const uint32_t *addext() const { return &opt_data.addext[0]; }
- uint16_t rtralt() const { return ntohs(opt_data.rtralt); }
- void sdb(std::vector<uint32_t> &vec) const;
-};
-
-/*
- * TCP Stuff
- */
-struct TcpOpt;
-struct TcpHdr : public tcp_hdr
-{
- uint16_t sport() const { return ntohs(th_sport); }
- uint16_t dport() const { return ntohs(th_dport); }
- uint32_t seq() const { return ntohl(th_seq); }
- uint32_t ack() const { return ntohl(th_ack); }
- uint8_t off() const { return th_off; }
- uint8_t flags() const { return th_flags & 0x3f; }
- uint16_t win() const { return ntohs(th_win); }
- uint16_t sum() const { return th_sum; }
- uint16_t urp() const { return ntohs(th_urp); }
-
- void sum(uint16_t sum) { th_sum = sum; }
-
- bool options(std::vector<const TcpOpt *> &vec) const;
-
- int size() const { return off(); }
- const uint8_t *bytes() const { return (const uint8_t *)this; }
- const uint8_t *payload() const { return bytes() + size(); }
- uint8_t *bytes() { return (uint8_t *)this; }
- uint8_t *payload() { return bytes() + size(); }
-};
-
-class TcpPtr
-{
- protected:
- PacketPtr p;
- int off;
-
- const TcpHdr *h() const { return (const TcpHdr *)(p->data + off); }
- TcpHdr *h() { return (TcpHdr *)(p->data + off); }
-
- void set(const PacketPtr &ptr, int offset) { p = ptr; off = offset; }
- void set(const IpPtr &ptr)
- {
- if (ptr->proto() == IP_PROTO_TCP)
- set(ptr.p, sizeof(eth_hdr) + ptr->hlen());
- else
- set(0, 0);
- }
-
- public:
- TcpPtr() {}
- TcpPtr(const IpPtr &ptr) { set(ptr); }
- TcpPtr(const TcpPtr &ptr) : p(ptr.p), off(ptr.off) {}
-
- TcpHdr *operator->() { return h(); }
- TcpHdr &operator*() { return *h(); }
- operator TcpHdr *() { return h(); }
-
- const TcpHdr *operator->() const { return h(); }
- const TcpHdr &operator*() const { return *h(); }
- operator const TcpHdr *() const { return h(); }
-
- const TcpPtr &operator=(const IpPtr &i) { set(i); return *this; }
- const TcpPtr &operator=(const TcpPtr &t) { set(t.p, t.off); return *this; }
-
- const PacketPtr packet() const { return p; }
- PacketPtr packet() { return p; }
- bool operator!() const { return !p; }
- operator bool() const { return p; }
- operator bool() { return p; }
-};
-
-uint16_t cksum(const TcpPtr &ptr);
-
-typedef Range<uint16_t> SackRange;
-
-struct TcpOpt : public tcp_opt
-{
- uint8_t type() const { return opt_type; }
- uint8_t len() const { return TCP_OPT_TYPEONLY(type()) ? 1 : opt_len; }
-
- bool isopt(int opt) const { return type() == opt; }
-
- const uint8_t *data() const { return opt_data.data8; }
-
- uint16_t mss() const { return ntohs(opt_data.mss); }
- uint8_t wscale() const { return opt_data.wscale; }
- bool sack(std::vector<SackRange> &vec) const;
- uint32_t echo() const { return ntohl(opt_data.echo); }
- uint32_t tsval() const { return ntohl(opt_data.timestamp[0]); }
- uint32_t tsecr() const { return ntohl(opt_data.timestamp[1]); }
- uint32_t cc() const { return ntohl(opt_data.cc); }
- uint8_t cksum() const{ return opt_data.cksum; }
- const uint8_t *md5() const { return opt_data.md5; }
-
- int size() const { return len(); }
- const uint8_t *bytes() const { return (const uint8_t *)this; }
- const uint8_t *payload() const { return bytes() + size(); }
- uint8_t *bytes() { return (uint8_t *)this; }
- uint8_t *payload() { return bytes() + size(); }
-};
-
-/*
- * UDP Stuff
- */
-struct UdpHdr : public udp_hdr
-{
- uint16_t sport() const { return ntohs(uh_sport); }
- uint16_t dport() const { return ntohs(uh_dport); }
- uint16_t len() const { return ntohs(uh_ulen); }
- uint16_t sum() const { return uh_sum; }
-
- void sum(uint16_t sum) { uh_sum = sum; }
-
- int size() const { return sizeof(udp_hdr); }
- const uint8_t *bytes() const { return (const uint8_t *)this; }
- const uint8_t *payload() const { return bytes() + size(); }
- uint8_t *bytes() { return (uint8_t *)this; }
- uint8_t *payload() { return bytes() + size(); }
-};
-
-class UdpPtr
-{
- protected:
- PacketPtr p;
- int off;
-
- const UdpHdr *h() const { return (const UdpHdr *)(p->data + off); }
- UdpHdr *h() { return (UdpHdr *)(p->data + off); }
-
- void set(const PacketPtr &ptr, int offset) { p = ptr; off = offset; }
- void set(const IpPtr &ptr)
- {
- if (ptr->proto() == IP_PROTO_UDP)
- set(ptr.p, sizeof(eth_hdr) + ptr->hlen());
- else
- set(0, 0);
- }
-
- public:
- UdpPtr() {}
- UdpPtr(const IpPtr &ptr) { set(ptr); }
- UdpPtr(const UdpPtr &ptr) : p(ptr.p), off(ptr.off) {}
-
- UdpHdr *operator->() { return h(); }
- UdpHdr &operator*() { return *h(); }
- operator UdpHdr *() { return h(); }
-
- const UdpHdr *operator->() const { return h(); }
- const UdpHdr &operator*() const { return *h(); }
- operator const UdpHdr *() const { return h(); }
-
- const UdpPtr &operator=(const IpPtr &i) { set(i); return *this; }
- const UdpPtr &operator=(const UdpPtr &t) { set(t.p, t.off); return *this; }
-
- const PacketPtr packet() const { return p; }
- PacketPtr packet() { return p; }
- bool operator!() const { return !p; }
- operator bool() const { return p; }
- operator bool() { return p; }
-};
-
-uint16_t cksum(const UdpPtr &ptr);
-
-/* namespace Net */ }
-
-#endif // __BASE_INET_HH__
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