inet.hh revision 10469
11689SN/A/* 28707Sandreas.hansson@arm.com * Copyright (c) 2013 ARM Limited 37849SAli.Saidi@ARM.com * All rights reserved 47849SAli.Saidi@ARM.com * 57849SAli.Saidi@ARM.com * The license below extends only to copyright in the software and shall 67849SAli.Saidi@ARM.com * not be construed as granting a license to any other intellectual 77849SAli.Saidi@ARM.com * property including but not limited to intellectual property relating 87849SAli.Saidi@ARM.com * to a hardware implementation of the functionality of the software 97849SAli.Saidi@ARM.com * licensed hereunder. You may use the software subject to the license 107849SAli.Saidi@ARM.com * terms below provided that you ensure that this notice is replicated 117849SAli.Saidi@ARM.com * unmodified and in its entirety in all distributions of the software, 127849SAli.Saidi@ARM.com * modified or unmodified, in source code or in binary form. 137849SAli.Saidi@ARM.com * 142329SN/A * Copyright (c) 2002-2005 The Regents of The University of Michigan 151689SN/A * Copyright (c) 2010 Advanced Micro Devices, Inc. 161689SN/A * All rights reserved. 171689SN/A * 181689SN/A * Redistribution and use in source and binary forms, with or without 191689SN/A * modification, are permitted provided that the following conditions are 201689SN/A * met: redistributions of source code must retain the above copyright 211689SN/A * notice, this list of conditions and the following disclaimer; 221689SN/A * redistributions in binary form must reproduce the above copyright 231689SN/A * notice, this list of conditions and the following disclaimer in the 241689SN/A * documentation and/or other materials provided with the distribution; 251689SN/A * neither the name of the copyright holders nor the names of its 261689SN/A * contributors may be used to endorse or promote products derived from 271689SN/A * this software without specific prior written permission. 281689SN/A * 291689SN/A * THIS SOFTWARE IS PROVIDED BY THE COPYRIGHT HOLDERS AND CONTRIBUTORS 301689SN/A * "AS IS" AND ANY EXPRESS OR IMPLIED WARRANTIES, INCLUDING, BUT NOT 311689SN/A * LIMITED TO, THE IMPLIED WARRANTIES OF MERCHANTABILITY AND FITNESS FOR 321689SN/A * A PARTICULAR PURPOSE ARE DISCLAIMED. IN NO EVENT SHALL THE COPYRIGHT 331689SN/A * OWNER OR CONTRIBUTORS BE LIABLE FOR ANY DIRECT, INDIRECT, INCIDENTAL, 341689SN/A * SPECIAL, EXEMPLARY, OR CONSEQUENTIAL DAMAGES (INCLUDING, BUT NOT 351689SN/A * LIMITED TO, PROCUREMENT OF SUBSTITUTE GOODS OR SERVICES; LOSS OF USE, 361689SN/A * DATA, OR PROFITS; OR BUSINESS INTERRUPTION) HOWEVER CAUSED AND ON ANY 371689SN/A * THEORY OF LIABILITY, WHETHER IN CONTRACT, STRICT LIABILITY, OR TORT 381689SN/A * (INCLUDING NEGLIGENCE OR OTHERWISE) ARISING IN ANY WAY OUT OF THE USE 392665Ssaidi@eecs.umich.edu * OF THIS SOFTWARE, EVEN IF ADVISED OF THE POSSIBILITY OF SUCH DAMAGE. 402665Ssaidi@eecs.umich.edu * 412756Sksewell@umich.edu * Authors: Nathan Binkert 421689SN/A * Steve Reinhardt 431689SN/A * Gabe Black 442292SN/A * Geoffrey Blake 452292SN/A */ 461060SN/A 479020Sgblack@eecs.umich.edu#ifndef __BASE_INET_HH__ 482669Sktlim@umich.edu#define __BASE_INET_HH__ 491461SN/A 506658Snate@binkert.org#include <iosfwd> 511060SN/A#include <string> 528229Snate@binkert.org#include <utility> 537849SAli.Saidi@ARM.com#include <vector> 543348Sbinkertn@umich.edu 552669Sktlim@umich.edu#include "base/types.hh" 561461SN/A#include "dev/etherpkt.hh" 571060SN/A#include "dnet/os.h" 588737Skoansin.tan@gmail.com#include "dnet/eth.h" 595529Snate@binkert.org#include "dnet/ip.h" 601060SN/A#include "dnet/ip6.h" 612329SN/A#include "dnet/addr.h" 622329SN/A#include "dnet/arp.h" 632329SN/A#include "dnet/icmp.h" 642329SN/A#include "dnet/tcp.h" 652348SN/A#include "dnet/udp.h" 662329SN/A#include "dnet/intf.h" 671060SN/A#include "dnet/route.h" 681060SN/A#include "dnet/fw.h" 692292SN/A#include "dnet/blob.h" 701060SN/A#include "dnet/rand.h" 711060SN/A 721060SN/Anamespace Net { 731061SN/A 741060SN/A/* 751061SN/A * Ethernet Stuff 762733Sktlim@umich.edu */ 771060SN/Astruct EthAddr : protected eth_addr 782292SN/A{ 791061SN/A protected: 801061SN/A void parse(const std::string &addr); 811061SN/A 821060SN/A public: 831060SN/A EthAddr(); 842107SN/A EthAddr(const uint8_t ea[ETH_ADDR_LEN]); 852292SN/A EthAddr(const eth_addr &ea); 862632Sstever@eecs.umich.edu EthAddr(const std::string &addr); 877849SAli.Saidi@ARM.com const EthAddr &operator=(const eth_addr &ea); 887849SAli.Saidi@ARM.com const EthAddr &operator=(const std::string &addr); 897849SAli.Saidi@ARM.com 907849SAli.Saidi@ARM.com int size() const { return sizeof(eth_addr); } 917849SAli.Saidi@ARM.com 927849SAli.Saidi@ARM.com const uint8_t *bytes() const { return &data[0]; } 937849SAli.Saidi@ARM.com uint8_t *bytes() { return &data[0]; } 947849SAli.Saidi@ARM.com 957849SAli.Saidi@ARM.com const uint8_t *addr() const { return &data[0]; } 967849SAli.Saidi@ARM.com bool unicast() const { return !(data[0] & 0x01); } 977849SAli.Saidi@ARM.com bool multicast() const { return !unicast() && !broadcast(); } 987944SGiacomo.Gabrielli@arm.com bool broadcast() const 997944SGiacomo.Gabrielli@arm.com { 1007944SGiacomo.Gabrielli@arm.com bool isBroadcast = true; 1017944SGiacomo.Gabrielli@arm.com for (int i = 0; i < ETH_ADDR_LEN; ++i) { 1027849SAli.Saidi@ARM.com isBroadcast = isBroadcast && data[i] == 0xff; 1037849SAli.Saidi@ARM.com } 1047849SAli.Saidi@ARM.com 1057849SAli.Saidi@ARM.com return isBroadcast; 1067849SAli.Saidi@ARM.com } 1077849SAli.Saidi@ARM.com 1087849SAli.Saidi@ARM.com std::string string() const; 1097849SAli.Saidi@ARM.com 1102935Sksewell@umich.edu operator uint64_t() const 1118462Sgeoffrey.blake@arm.com { 1128462Sgeoffrey.blake@arm.com uint64_t reg = 0; 1138462Sgeoffrey.blake@arm.com reg |= ((uint64_t)data[0]) << 40; 1148462Sgeoffrey.blake@arm.com reg |= ((uint64_t)data[1]) << 32; 1158462Sgeoffrey.blake@arm.com reg |= ((uint64_t)data[2]) << 24; 1168462Sgeoffrey.blake@arm.com reg |= ((uint64_t)data[3]) << 16; 1178462Sgeoffrey.blake@arm.com reg |= ((uint64_t)data[4]) << 8; 1188462Sgeoffrey.blake@arm.com reg |= ((uint64_t)data[5]) << 0; 1198462Sgeoffrey.blake@arm.com return reg; 1208462Sgeoffrey.blake@arm.com } 1218462Sgeoffrey.blake@arm.com 1228462Sgeoffrey.blake@arm.com}; 1238462Sgeoffrey.blake@arm.com 1248462Sgeoffrey.blake@arm.comstd::ostream &operator<<(std::ostream &stream, const EthAddr &ea); 1258462Sgeoffrey.blake@arm.combool operator==(const EthAddr &left, const EthAddr &right); 1268462Sgeoffrey.blake@arm.com 1278462Sgeoffrey.blake@arm.comstruct EthHdr : public eth_hdr 1288462Sgeoffrey.blake@arm.com{ 1298462Sgeoffrey.blake@arm.com bool isVlan() const { return (ntohs(eth_type) == ETH_TYPE_8021Q); } 1308462Sgeoffrey.blake@arm.com uint16_t type() const { 1318462Sgeoffrey.blake@arm.com if (!isVlan()) 1328462Sgeoffrey.blake@arm.com return ntohs(eth_type); 1338462Sgeoffrey.blake@arm.com else 1348462Sgeoffrey.blake@arm.com // L3 type is now 16 bytes into the hdr with 802.1Q 1358462Sgeoffrey.blake@arm.com // instead of 12. dnet/eth.h only supports 802.1 1368462Sgeoffrey.blake@arm.com return ntohs(*((uint16_t*)(((uint8_t *)this) + 16))); 1378462Sgeoffrey.blake@arm.com } 1388462Sgeoffrey.blake@arm.com uint16_t vlanId() const { 1398462Sgeoffrey.blake@arm.com if (isVlan()) 1408462Sgeoffrey.blake@arm.com return ntohs(*((uint16_t*)(((uint8_t *)this) + 14))); 1418462Sgeoffrey.blake@arm.com else 1428462Sgeoffrey.blake@arm.com return 0x0000; 1438462Sgeoffrey.blake@arm.com } 1448462Sgeoffrey.blake@arm.com 1458462Sgeoffrey.blake@arm.com const EthAddr &src() const { return *(EthAddr *)ð_src; } 1468462Sgeoffrey.blake@arm.com const EthAddr &dst() const { return *(EthAddr *)ð_dst; } 1478462Sgeoffrey.blake@arm.com 1488462Sgeoffrey.blake@arm.com int size() const { 1498462Sgeoffrey.blake@arm.com if (!isVlan()) 1501060SN/A return sizeof(eth_hdr); 1512329SN/A else 1522329SN/A return (sizeof(eth_hdr)+4); 1532292SN/A } 1542292SN/A 1552292SN/A const uint8_t *bytes() const { return (const uint8_t *)this; } 1562292SN/A const uint8_t *payload() const { return bytes() + size(); } 1572292SN/A uint8_t *bytes() { return (uint8_t *)this; } 1582292SN/A uint8_t *payload() { return bytes() + size(); } 1592292SN/A}; 1602292SN/A 1611060SN/Aclass EthPtr 1621060SN/A{ 1631060SN/A protected: 1641060SN/A friend class IpPtr; 1652292SN/A friend class Ip6Ptr; 1662292SN/A EthPacketPtr p; 1672292SN/A 1682307SN/A public: 1697849SAli.Saidi@ARM.com EthPtr() {} 1702669Sktlim@umich.edu EthPtr(const EthPacketPtr &ptr) : p(ptr) { } 1712696Sktlim@umich.edu 1728460SAli.Saidi@ARM.com EthHdr *operator->() { return (EthHdr *)p->data; } 1738460SAli.Saidi@ARM.com EthHdr &operator*() { return *(EthHdr *)p->data; } 1741060SN/A operator EthHdr *() { return (EthHdr *)p->data; } 1751060SN/A 1762292SN/A const EthHdr *operator->() const { return (const EthHdr *)p->data; } 1772292SN/A const EthHdr &operator*() const { return *(const EthHdr *)p->data; } 1782292SN/A operator const EthHdr *() const { return (const EthHdr *)p->data; } 1792292SN/A 1802292SN/A const EthPtr &operator=(const EthPacketPtr &ptr) { p = ptr; return *this; } 1812292SN/A 1822292SN/A const EthPacketPtr packet() const { return p; } 1832292SN/A EthPacketPtr packet() { return p; } 1841060SN/A bool operator!() const { return !p; } 1852292SN/A operator bool() const { return (p != nullptr); } 1862292SN/A int off() const { return 0; } 1872292SN/A int pstart() const { return off() + ((const EthHdr*)p->data)->size(); } 1882292SN/A}; 1892292SN/A 1902292SN/A/* 1912292SN/A * IP Stuff 1922292SN/A */ 1932292SN/Astruct IpAddress 1942292SN/A{ 1952292SN/A protected: 1966221Snate@binkert.org uint32_t _ip; 1971060SN/A 1981060SN/A public: 1992292SN/A IpAddress() : _ip(0) 2005529Snate@binkert.org {} 2011684SN/A IpAddress(const uint32_t __ip) : _ip(__ip) 2022292SN/A {} 2032292SN/A 2041684SN/A uint32_t ip() const { return _ip; } 2052292SN/A 2061062SN/A std::string string() const; 2071062SN/A}; 2082292SN/A 2091060SN/Astd::ostream &operator<<(std::ostream &stream, const IpAddress &ia); 2101060SN/Abool operator==(const IpAddress &left, const IpAddress &right); 2112292SN/A 2126221Snate@binkert.orgstruct IpNetmask : public IpAddress 2132292SN/A{ 2142292SN/A protected: 2151060SN/A uint8_t _netmask; 2161060SN/A 2172292SN/A public: 2182292SN/A IpNetmask() : IpAddress(), _netmask(0) 2192292SN/A {} 2204302Sktlim@umich.edu IpNetmask(const uint32_t __ip, const uint8_t __netmask) : 2214302Sktlim@umich.edu IpAddress(__ip), _netmask(__netmask) 2224302Sktlim@umich.edu {} 2238707Sandreas.hansson@arm.com 2248707Sandreas.hansson@arm.com uint8_t netmask() const { return _netmask; } 2258707Sandreas.hansson@arm.com 2262292SN/A std::string string() const; 2272669Sktlim@umich.edu}; 2282292SN/A 2292843Sktlim@umich.edustd::ostream &operator<<(std::ostream &stream, const IpNetmask &in); 2302863Sktlim@umich.edubool operator==(const IpNetmask &left, const IpNetmask &right); 2312843Sktlim@umich.edu 2322843Sktlim@umich.edustruct IpWithPort : public IpAddress 2332843Sktlim@umich.edu{ 2342843Sktlim@umich.edu protected: 2352843Sktlim@umich.edu uint16_t _port; 2362307SN/A 2372307SN/A public: 2382348SN/A IpWithPort() : IpAddress(), _port(0) 2392307SN/A {} 2402307SN/A IpWithPort(const uint32_t __ip, const uint16_t __port) : 2412348SN/A IpAddress(__ip), _port(__port) 2422307SN/A {} 2432307SN/A 2442348SN/A uint8_t port() const { return _port; } 2452292SN/A 2461060SN/A std::string string() const; 2471061SN/A}; 2482329SN/A 2492329SN/Astd::ostream &operator<<(std::ostream &stream, const IpWithPort &iwp); 2502292SN/Abool operator==(const IpWithPort &left, const IpWithPort &right); 2512292SN/A 2522292SN/Astruct IpOpt; 2532329SN/Astruct IpHdr : public ip_hdr 2542329SN/A{ 2552292SN/A uint8_t version() const { return ip_v; } 2562292SN/A uint8_t hlen() const { return ip_hl * 4; } 2572292SN/A uint8_t tos() const { return ip_tos; } 2581061SN/A uint16_t len() const { return ntohs(ip_len); } 2591061SN/A uint16_t id() const { return ntohs(ip_id); } 2601061SN/A uint16_t frag_flags() const { return ntohs(ip_off) >> 13; } 2611763SN/A uint16_t frag_off() const { return ntohs(ip_off) & 0x1fff; } 2621061SN/A uint8_t ttl() const { return ip_ttl; } 2631061SN/A uint8_t proto() const { return ip_p; } 2642935Sksewell@umich.edu uint16_t sum() const { return ip_sum; } 2651061SN/A uint32_t src() const { return ntohl(ip_src); } 2661061SN/A uint32_t dst() const { return ntohl(ip_dst); } 2677720Sgblack@eecs.umich.edu 2681062SN/A void sum(uint16_t sum) { ip_sum = sum; } 2691062SN/A void id(uint16_t _id) { ip_id = htons(_id); } 2701062SN/A void len(uint16_t _len) { ip_len = htons(_len); } 2711062SN/A 2721062SN/A bool options(std::vector<const IpOpt *> &vec) const; 2737764Sgblack@eecs.umich.edu 2742292SN/A int size() const { return hlen(); } 2752292SN/A const uint8_t *bytes() const { return (const uint8_t *)this; } 2762292SN/A const uint8_t *payload() const { return bytes() + size(); } 2777764Sgblack@eecs.umich.edu uint8_t *bytes() { return (uint8_t *)this; } 2781062SN/A uint8_t *payload() { return bytes() + size(); } 2791062SN/A}; 2807849SAli.Saidi@ARM.com 2817849SAli.Saidi@ARM.comclass IpPtr 2821062SN/A{ 2837847Sminkyu.jeong@arm.com protected: 2847847Sminkyu.jeong@arm.com friend class TcpPtr; 2857847Sminkyu.jeong@arm.com friend class UdpPtr; 2867847Sminkyu.jeong@arm.com EthPacketPtr p; 2877847Sminkyu.jeong@arm.com bool eth_hdr_vlan; 2887847Sminkyu.jeong@arm.com 2897847Sminkyu.jeong@arm.com void set(const EthPacketPtr &ptr) 2907847Sminkyu.jeong@arm.com { 2917847Sminkyu.jeong@arm.com p = 0; 2922292SN/A eth_hdr_vlan = false; 2938503Sgblack@eecs.umich.edu 2948503Sgblack@eecs.umich.edu if (ptr) { 2951684SN/A EthHdr *eth = (EthHdr *)ptr->data; 2962292SN/A if (eth->type() == ETH_TYPE_IP) 2972292SN/A p = ptr; 2982292SN/A if (eth->isVlan()) 2997720Sgblack@eecs.umich.edu eth_hdr_vlan = true; 3008503Sgblack@eecs.umich.edu } 3018503Sgblack@eecs.umich.edu } 3022292SN/A 3032292SN/A public: 3046221Snate@binkert.org IpPtr() : p(0), eth_hdr_vlan(false) {} 3052292SN/A IpPtr(const EthPacketPtr &ptr) : p(0), eth_hdr_vlan(false) { set(ptr); } 3062292SN/A IpPtr(const EthPtr &ptr) : p(0), eth_hdr_vlan(false) { set(ptr.p); } 3072292SN/A IpPtr(const IpPtr &ptr) : p(ptr.p), eth_hdr_vlan(ptr.eth_hdr_vlan) { } 3082292SN/A 3091684SN/A IpHdr *get() { return (IpHdr *)(p->data + sizeof(eth_hdr) + 3101684SN/A ((eth_hdr_vlan) ? 4 : 0)); } 3112292SN/A IpHdr *operator->() { return get(); } 3122292SN/A IpHdr &operator*() { return *get(); } 3132292SN/A 3142292SN/A const IpHdr *get() const 3158503Sgblack@eecs.umich.edu { return (const IpHdr *)(p->data + sizeof(eth_hdr) + 3168503Sgblack@eecs.umich.edu ((eth_hdr_vlan) ? 4 : 0)); } 3171684SN/A const IpHdr *operator->() const { return get(); } 3182292SN/A const IpHdr &operator*() const { return *get(); } 3192292SN/A 3202292SN/A const IpPtr &operator=(const EthPacketPtr &ptr) { set(ptr); return *this; } 3211684SN/A const IpPtr &operator=(const EthPtr &ptr) { set(ptr.p); return *this; } 3221684SN/A const IpPtr &operator=(const IpPtr &ptr) { p = ptr.p; return *this; } 3232292SN/A 3242292SN/A const EthPacketPtr packet() const { return p; } 3252292SN/A EthPacketPtr packet() { return p; } 3266221Snate@binkert.org bool operator!() const { return !p; } 3271684SN/A operator bool() const { return (p != nullptr); } 3282292SN/A int off() const { return (sizeof(eth_hdr) + ((eth_hdr_vlan) ? 4 : 0)); } 3292292SN/A int pstart() const { return (off() + get()->size()); } 3302292SN/A}; 3312292SN/A 3322292SN/Auint16_t cksum(const IpPtr &ptr); 3332292SN/A 3342292SN/Astruct IpOpt : public ip_opt 3352292SN/A{ 3361062SN/A uint8_t type() const { return opt_type; } 3371062SN/A uint8_t typeNumber() const { return IP_OPT_NUMBER(opt_type); } 3381062SN/A uint8_t typeClass() const { return IP_OPT_CLASS(opt_type); } 3391062SN/A uint8_t typeCopied() const { return IP_OPT_COPIED(opt_type); } 3401061SN/A uint8_t len() const { return IP_OPT_TYPEONLY(type()) ? 1 : opt_len; } 3418541Sgblack@eecs.umich.edu 3429023Sgblack@eecs.umich.edu bool isNumber(int num) const { return typeNumber() == IP_OPT_NUMBER(num); } 3438541Sgblack@eecs.umich.edu bool isClass(int cls) const { return typeClass() == IP_OPT_CLASS(cls); } 3441060SN/A bool isCopied(int cpy) const { return typeCopied() == IP_OPT_COPIED(cpy); } 3457764Sgblack@eecs.umich.edu 3467764Sgblack@eecs.umich.edu const uint8_t *data() const { return opt_data.data8; } 3477764Sgblack@eecs.umich.edu void sec(ip_opt_data_sec &sec) const; 3487764Sgblack@eecs.umich.edu void lsrr(ip_opt_data_rr &rr) const; 3492292SN/A void ssrr(ip_opt_data_rr &rr) const; 3506221Snate@binkert.org void ts(ip_opt_data_ts &ts) const; 3512292SN/A uint16_t satid() const { return ntohs(opt_data.satid); } 3522292SN/A uint16_t mtup() const { return ntohs(opt_data.mtu); } 3536221Snate@binkert.org uint16_t mtur() const { return ntohs(opt_data.mtu); } 3542292SN/A void tr(ip_opt_data_tr &tr) const; 3552292SN/A const uint32_t *addext() const { return &opt_data.addext[0]; } 3566221Snate@binkert.org uint16_t rtralt() const { return ntohs(opt_data.rtralt); } 3572292SN/A void sdb(std::vector<uint32_t> &vec) const; 3582292SN/A}; 3596221Snate@binkert.org 3602292SN/A/* 3616221Snate@binkert.org * Ip6 Classes 3626221Snate@binkert.org */ 3636221Snate@binkert.orgstruct Ip6Opt; 3642292SN/Astruct Ip6Hdr : public ip6_hdr 3658462Sgeoffrey.blake@arm.com{ 3668462Sgeoffrey.blake@arm.com uint8_t version() const { return ip6_vfc; } 3678462Sgeoffrey.blake@arm.com uint32_t flow() const { return ntohl(ip6_flow); } 3688462Sgeoffrey.blake@arm.com uint16_t plen() const { return ntohs(ip6_plen); } 3698462Sgeoffrey.blake@arm.com uint16_t hlen() const { return IP6_HDR_LEN; } 3708462Sgeoffrey.blake@arm.com uint8_t nxt() const { return ip6_nxt; } 3712292SN/A uint8_t hlim() const { return ip6_hlim; } 3722733Sktlim@umich.edu 3732733Sktlim@umich.edu const uint8_t* src() const { return ip6_src.data; } 3741060SN/A const uint8_t* dst() const { return ip6_dst.data; } 3751060SN/A 3761060SN/A int extensionLength() const; 3771060SN/A const Ip6Opt* getExt(uint8_t ext) const; 3781060SN/A const Ip6Opt* fragmentExt() const { return getExt(IP_PROTO_FRAGMENT); } 3791060SN/A const Ip6Opt* rtTypeExt() const { return getExt(IP_PROTO_ROUTING); } 3801060SN/A const Ip6Opt* dstOptExt() const { return getExt(IP_PROTO_DSTOPTS); } 3811060SN/A uint8_t proto() const; 3821060SN/A 3831060SN/A void plen(uint16_t _plen) { ip6_plen = htons(_plen); } 3841060SN/A 3851060SN/A int size() const { return IP6_HDR_LEN + extensionLength(); } 3861060SN/A const uint8_t *bytes() const { return (const uint8_t *)this; } 3871060SN/A const uint8_t *payload() const { return bytes() + IP6_HDR_LEN 3881060SN/A + extensionLength(); } 3891060SN/A uint8_t *bytes() { return (uint8_t *)this; } 3901060SN/A uint8_t *payload() { return bytes() + IP6_HDR_LEN 3911060SN/A + extensionLength(); } 3921060SN/A}; 3931060SN/A 3941060SN/Aclass Ip6Ptr 3951060SN/A{ 3961060SN/A protected: 3971061SN/A friend class TcpPtr; 3981061SN/A friend class UdpPtr; 3991061SN/A EthPacketPtr p; 4007720Sgblack@eecs.umich.edu bool eth_hdr_vlan; 4012292SN/A 4027764Sgblack@eecs.umich.edu void set(const EthPacketPtr &ptr) 4037764Sgblack@eecs.umich.edu { 4047764Sgblack@eecs.umich.edu p = 0; 4057764Sgblack@eecs.umich.edu eth_hdr_vlan = false; 4068314Sgeoffrey.blake@arm.com 4078314Sgeoffrey.blake@arm.com if (ptr) { 4088314Sgeoffrey.blake@arm.com EthHdr *eth = (EthHdr *)ptr->data; 4092678Sktlim@umich.edu if (eth->type() == ETH_TYPE_IPV6) 4102678Sktlim@umich.edu p = ptr; 4112292SN/A if (eth->isVlan()) 4122292SN/A eth_hdr_vlan = true; 4132292SN/A } 4142292SN/A } 4152292SN/A 4162292SN/A public: 4172292SN/A Ip6Ptr() : p(0), eth_hdr_vlan(false) {} 4182292SN/A Ip6Ptr(const EthPacketPtr &ptr) : p(0), eth_hdr_vlan(false) { set(ptr); } 4192292SN/A Ip6Ptr(const EthPtr &ptr) : p(0), eth_hdr_vlan(false) { set(ptr.p); } 4202292SN/A Ip6Ptr(const Ip6Ptr &ptr) : p(ptr.p), eth_hdr_vlan(ptr.eth_hdr_vlan) { } 4212292SN/A 4222292SN/A Ip6Hdr *get() { return (Ip6Hdr *)(p->data + sizeof(eth_hdr) 4232292SN/A + ((eth_hdr_vlan) ? 4 : 0)); } 4242292SN/A Ip6Hdr *operator->() { return get(); } 4252292SN/A Ip6Hdr &operator*() { return *get(); } 4262292SN/A 4272292SN/A const Ip6Hdr *get() const 4282292SN/A { return (const Ip6Hdr *)(p->data + sizeof(eth_hdr) 4292292SN/A + ((eth_hdr_vlan) ? 4 : 0)); } 4301060SN/A const Ip6Hdr *operator->() const { return get(); } 4311060SN/A const Ip6Hdr &operator*() const { return *get(); } 4321060SN/A 4331060SN/A const Ip6Ptr &operator=(const EthPacketPtr &ptr) 4341060SN/A { set(ptr); return *this; } 4351060SN/A const Ip6Ptr &operator=(const EthPtr &ptr) 4361060SN/A { set(ptr.p); return *this; } 4371060SN/A const Ip6Ptr &operator=(const Ip6Ptr &ptr) 4381060SN/A { p = ptr.p; return *this; } 4391060SN/A 4401060SN/A const EthPacketPtr packet() const { return p; } 4411060SN/A EthPacketPtr packet() { return p; } 4421060SN/A bool operator!() const { return !p; } 4431060SN/A operator bool() const { return (p != nullptr); } 4441060SN/A int off() const { return sizeof(eth_hdr) + ((eth_hdr_vlan) ? 4 : 0); } 4451060SN/A int pstart() const { return off() + get()->size(); } 4462696Sktlim@umich.edu}; 4472696Sktlim@umich.edu 4482696Sktlim@umich.edu// Dnet supplied ipv6 opt header is incomplete and 4492696Sktlim@umich.edu// newer NIC card filters expect a more robust 4502696Sktlim@umich.edu// ipv6 header option declaration. 4512696Sktlim@umich.edustruct ip6_opt_fragment { 4522696Sktlim@umich.edu uint16_t offlg; 4536221Snate@binkert.org uint32_t ident; 4542696Sktlim@umich.edu}; 4551060SN/A 4561062SN/Astruct ip6_opt_routing_type2 { 4571060SN/A uint8_t type; 4581060SN/A uint8_t segleft; 4591062SN/A uint32_t reserved; 4601060SN/A ip6_addr_t addr; 4611062SN/A}; 4622292SN/A 4631060SN/A#define HOME_ADDRESS_OPTION 0xC9 4642893Sktlim@umich.edustruct ip6_opt_dstopts { 4652893Sktlim@umich.edu uint8_t type; 4662893Sktlim@umich.edu uint8_t length; 4672906Sktlim@umich.edu ip6_addr_t addr; 4682906Sktlim@umich.edu} __attribute__((packed)); 4692906Sktlim@umich.edu 4701060SN/Astruct ip6_opt_hdr 4711060SN/A{ 4721060SN/A uint8_t ext_nxt; 4731060SN/A uint8_t ext_len; 4742292SN/A union { 4751062SN/A struct ip6_opt_fragment fragment; 4762292SN/A struct ip6_opt_routing_type2 rtType2; 4776221Snate@binkert.org struct ip6_opt_dstopts dstOpts; 4782292SN/A } ext_data; 4792292SN/A} __attribute__((packed)); 4806221Snate@binkert.org 4812292SN/Astruct Ip6Opt : public ip6_opt_hdr 4822292SN/A{ 4836221Snate@binkert.org uint8_t nxt() const { return ext_nxt; } 4842292SN/A uint8_t extlen() const { return ext_len; } 4852292SN/A uint8_t len() const { return extlen() + 8; } 4866221Snate@binkert.org 4872292SN/A // Supporting the types of header extensions likely to be encountered: 4882348SN/A // fragment, routing type 2 and dstopts. 4892348SN/A 4902348SN/A // Routing type 2 4912292SN/A uint8_t rtType2Type() const { return ext_data.rtType2.type; } 4922292SN/A uint8_t rtType2SegLft() const { return ext_data.rtType2.segleft; } 4932843Sktlim@umich.edu const uint8_t* rtType2Addr() const { return ext_data.rtType2.addr.data; } 4942843Sktlim@umich.edu 4952843Sktlim@umich.edu // Fragment 4962348SN/A uint16_t fragmentOfflg() const { return ntohs(ext_data.fragment.offlg); } 4972307SN/A uint32_t fragmentIdent() const { return ntohl(ext_data.fragment.ident); } 4982307SN/A 4998462Sgeoffrey.blake@arm.com // Dst Options/Home Address Option 5008462Sgeoffrey.blake@arm.com uint8_t dstOptType() const { return ext_data.dstOpts.type; } 5018462Sgeoffrey.blake@arm.com uint8_t dstOptLength() const { return ext_data.dstOpts.length; } 5028462Sgeoffrey.blake@arm.com const uint8_t* dstOptAddr() const { return ext_data.dstOpts.addr.data; } 5038462Sgeoffrey.blake@arm.com}; 5048462Sgeoffrey.blake@arm.com 5052292SN/A 5062292SN/A/* 5075999Snate@binkert.org * TCP Stuff 5082292SN/A */ 5095999Snate@binkert.orgstruct TcpOpt; 5102727Sktlim@umich.edustruct TcpHdr : public tcp_hdr 5115999Snate@binkert.org{ 5122292SN/A uint16_t sport() const { return ntohs(th_sport); } 5135999Snate@binkert.org uint16_t dport() const { return ntohs(th_dport); } 5142292SN/A uint32_t seq() const { return ntohl(th_seq); } 5155999Snate@binkert.org uint32_t ack() const { return ntohl(th_ack); } 5162292SN/A uint8_t off() const { return th_off*4; } 5175999Snate@binkert.org uint8_t flags() const { return th_flags & 0x3f; } 5187849SAli.Saidi@ARM.com uint16_t win() const { return ntohs(th_win); } 5197849SAli.Saidi@ARM.com uint16_t sum() const { return th_sum; } 5202292SN/A uint16_t urp() const { return ntohs(th_urp); } 5212292SN/A 5222292SN/A void sum(uint16_t sum) { th_sum = sum; } 5235999Snate@binkert.org void seq(uint32_t _seq) { th_seq = htonl(_seq); } 5242348SN/A void flags(uint8_t _flags) { th_flags = _flags; } 5255999Snate@binkert.org 5262348SN/A bool options(std::vector<const TcpOpt *> &vec) const; 5275999Snate@binkert.org 5288462Sgeoffrey.blake@arm.com int size() const { return off(); } 5298462Sgeoffrey.blake@arm.com const uint8_t *bytes() const { return (const uint8_t *)this; } 5308462Sgeoffrey.blake@arm.com const uint8_t *payload() const { return bytes() + size(); } 5318462Sgeoffrey.blake@arm.com uint8_t *bytes() { return (uint8_t *)this; } 5328462Sgeoffrey.blake@arm.com uint8_t *payload() { return bytes() + size(); } 5338462Sgeoffrey.blake@arm.com}; 5348462Sgeoffrey.blake@arm.com 5358462Sgeoffrey.blake@arm.comclass TcpPtr 5368462Sgeoffrey.blake@arm.com{ 5378462Sgeoffrey.blake@arm.com protected: 5382292SN/A EthPacketPtr p; 5395999Snate@binkert.org int _off; 5402348SN/A 5412348SN/A void set(const EthPacketPtr &ptr, int offset) { p = ptr; _off = offset; } 5422348SN/A void set(const IpPtr &ptr) 5435999Snate@binkert.org { 5448064SAli.Saidi@ARM.com if (ptr && ptr->proto() == IP_PROTO_TCP) 5458064SAli.Saidi@ARM.com set(ptr.p, ptr.pstart()); 5468064SAli.Saidi@ARM.com else 5478064SAli.Saidi@ARM.com set(0, 0); 5482292SN/A } 5495999Snate@binkert.org void set(const Ip6Ptr &ptr) 5502348SN/A { 5512292SN/A if (ptr && ptr->proto() == IP_PROTO_TCP) 5522348SN/A set(ptr.p, ptr.pstart()); 5532292SN/A else 5542348SN/A set(0, 0); 5552292SN/A } 5561060SN/A 5571060SN/A public: 5582292SN/A TcpPtr() : p(0), _off(0) {} 559 TcpPtr(const IpPtr &ptr) : p(0), _off(0) { set(ptr); } 560 TcpPtr(const Ip6Ptr &ptr) : p(0), _off(0) { set(ptr); } 561 TcpPtr(const TcpPtr &ptr) : p(ptr.p), _off(ptr._off) {} 562 563 TcpHdr *get() { return (TcpHdr *)(p->data + _off); } 564 TcpHdr *operator->() { return get(); } 565 TcpHdr &operator*() { return *get(); } 566 567 const TcpHdr *get() const { return (const TcpHdr *)(p->data + _off); } 568 const TcpHdr *operator->() const { return get(); } 569 const TcpHdr &operator*() const { return *get(); } 570 571 const TcpPtr &operator=(const IpPtr &i) 572 { set(i); return *this; } 573 const TcpPtr &operator=(const TcpPtr &t) 574 { set(t.p, t._off); return *this; } 575 576 const EthPacketPtr packet() const { return p; } 577 EthPacketPtr packet() { return p; } 578 bool operator!() const { return !p; } 579 operator bool() const { return (p != nullptr); } 580 int off() const { return _off; } 581 int pstart() const { return off() + get()->size(); } 582}; 583 584uint16_t cksum(const TcpPtr &ptr); 585 586struct TcpOpt : public tcp_opt 587{ 588 uint8_t type() const { return opt_type; } 589 uint8_t len() const { return TCP_OPT_TYPEONLY(type()) ? 1 : opt_len; } 590 591 bool isopt(int opt) const { return type() == opt; } 592 593 const uint8_t *data() const { return opt_data.data8; } 594 595 uint16_t mss() const { return ntohs(opt_data.mss); } 596 uint8_t wscale() const { return opt_data.wscale; } 597 uint32_t echo() const { return ntohl(opt_data.echo); } 598 uint32_t tsval() const { return ntohl(opt_data.timestamp[0]); } 599 uint32_t tsecr() const { return ntohl(opt_data.timestamp[1]); } 600 uint32_t cc() const { return ntohl(opt_data.cc); } 601 uint8_t cksum() const{ return opt_data.cksum; } 602 const uint8_t *md5() const { return opt_data.md5; } 603 604 int size() const { return len(); } 605 const uint8_t *bytes() const { return (const uint8_t *)this; } 606 const uint8_t *payload() const { return bytes() + size(); } 607 uint8_t *bytes() { return (uint8_t *)this; } 608 uint8_t *payload() { return bytes() + size(); } 609}; 610 611/* 612 * UDP Stuff 613 */ 614struct UdpHdr : public udp_hdr 615{ 616 uint16_t sport() const { return ntohs(uh_sport); } 617 uint16_t dport() const { return ntohs(uh_dport); } 618 uint16_t len() const { return ntohs(uh_ulen); } 619 uint16_t sum() const { return uh_sum; } 620 621 void sum(uint16_t sum) { uh_sum = sum; } 622 void len(uint16_t _len) { uh_ulen = htons(_len); } 623 624 int size() const { return sizeof(udp_hdr); } 625 const uint8_t *bytes() const { return (const uint8_t *)this; } 626 const uint8_t *payload() const { return bytes() + size(); } 627 uint8_t *bytes() { return (uint8_t *)this; } 628 uint8_t *payload() { return bytes() + size(); } 629}; 630 631class UdpPtr 632{ 633 protected: 634 EthPacketPtr p; 635 int _off; 636 637 void set(const EthPacketPtr &ptr, int offset) { p = ptr; _off = offset; } 638 void set(const IpPtr &ptr) 639 { 640 if (ptr && ptr->proto() == IP_PROTO_UDP) 641 set(ptr.p, ptr.pstart()); 642 else 643 set(0, 0); 644 } 645 void set(const Ip6Ptr &ptr) 646 { 647 if (ptr && ptr->proto() == IP_PROTO_UDP) 648 set(ptr.p, ptr.pstart()); 649 else 650 set(0, 0); 651 } 652 653 public: 654 UdpPtr() : p(0), _off(0) {} 655 UdpPtr(const IpPtr &ptr) : p(0), _off(0) { set(ptr); } 656 UdpPtr(const Ip6Ptr &ptr) : p(0), _off(0) { set(ptr); } 657 UdpPtr(const UdpPtr &ptr) : p(ptr.p), _off(ptr._off) {} 658 659 UdpHdr *get() { return (UdpHdr *)(p->data + _off); } 660 UdpHdr *operator->() { return get(); } 661 UdpHdr &operator*() { return *get(); } 662 663 const UdpHdr *get() const { return (const UdpHdr *)(p->data + _off); } 664 const UdpHdr *operator->() const { return get(); } 665 const UdpHdr &operator*() const { return *get(); } 666 667 const UdpPtr &operator=(const IpPtr &i) { set(i); return *this; } 668 const UdpPtr &operator=(const UdpPtr &t) 669 { set(t.p, t._off); return *this; } 670 671 const EthPacketPtr packet() const { return p; } 672 EthPacketPtr packet() { return p; } 673 bool operator!() const { return !p; } 674 operator bool() const { return (p != nullptr); } 675 int off() const { return _off; } 676 int pstart() const { return off() + get()->size(); } 677}; 678 679uint16_t __tu_cksum6(const Ip6Ptr &ip6); 680uint16_t __tu_cksum(const IpPtr &ip); 681uint16_t cksum(const UdpPtr &ptr); 682 683int hsplit(const EthPacketPtr &ptr); 684 685} // namespace Net 686 687#endif // __BASE_INET_HH__ 688