2 * Copyright (c) 2002-2005 The Regents of The University of Michigan
3 * Copyright (c) 2010 Advanced Micro Devices, Inc.
6 * Redistribution and use in source and binary forms, with or without
7 * modification, are permitted provided that the following conditions are
8 * met: redistributions of source code must retain the above copyright
9 * notice, this list of conditions and the following disclaimer;
10 * redistributions in binary form must reproduce the above copyright
11 * notice, this list of conditions and the following disclaimer in the
12 * documentation and/or other materials provided with the distribution;
13 * neither the name of the copyright holders nor the names of its
14 * contributors may be used to endorse or promote products derived from
15 * this software without specific prior written permission.
17 * THIS SOFTWARE IS PROVIDED BY THE COPYRIGHT HOLDERS AND CONTRIBUTORS
18 * "AS IS" AND ANY EXPRESS OR IMPLIED WARRANTIES, INCLUDING, BUT NOT
19 * LIMITED TO, THE IMPLIED WARRANTIES OF MERCHANTABILITY AND FITNESS FOR
20 * A PARTICULAR PURPOSE ARE DISCLAIMED. IN NO EVENT SHALL THE COPYRIGHT
21 * OWNER OR CONTRIBUTORS BE LIABLE FOR ANY DIRECT, INDIRECT, INCIDENTAL,
22 * SPECIAL, EXEMPLARY, OR CONSEQUENTIAL DAMAGES (INCLUDING, BUT NOT
23 * LIMITED TO, PROCUREMENT OF SUBSTITUTE GOODS OR SERVICES; LOSS OF USE,
24 * DATA, OR PROFITS; OR BUSINESS INTERRUPTION) HOWEVER CAUSED AND ON ANY
25 * THEORY OF LIABILITY, WHETHER IN CONTRACT, STRICT LIABILITY, OR TORT
26 * (INCLUDING NEGLIGENCE OR OTHERWISE) ARISING IN ANY WAY OUT OF THE USE
27 * OF THIS SOFTWARE, EVEN IF ADVISED OF THE POSSIBILITY OF SUCH DAMAGE.
29 * Authors: Nathan Binkert
34 #ifndef __BASE_INET_HH__
35 #define __BASE_INET_HH__
42 #include "base/types.hh"
43 #include "dev/etherpkt.hh"
48 #include "dnet/addr.h"
50 #include "dnet/icmp.h"
53 #include "dnet/intf.h"
54 #include "dnet/route.h"
56 #include "dnet/blob.h"
57 #include "dnet/rand.h"
64 struct EthAddr : protected eth_addr
67 void parse(const std::string &addr);
71 EthAddr(const uint8_t ea[ETH_ADDR_LEN]);
72 EthAddr(const eth_addr &ea);
73 EthAddr(const std::string &addr);
74 const EthAddr &operator=(const eth_addr &ea);
75 const EthAddr &operator=(const std::string &addr);
77 int size() const { return sizeof(eth_addr); }
79 const uint8_t *bytes() const { return &data[0]; }
80 uint8_t *bytes() { return &data[0]; }
82 const uint8_t *addr() const { return &data[0]; }
83 bool unicast() const { return data[0] == 0x00; }
84 bool multicast() const { return data[0] == 0x01; }
85 bool broadcast() const { return data[0] == 0xff; }
86 std::string string() const;
88 operator uint64_t() const
91 reg |= ((uint64_t)data[0]) << 40;
92 reg |= ((uint64_t)data[1]) << 32;
93 reg |= ((uint64_t)data[2]) << 24;
94 reg |= ((uint64_t)data[3]) << 16;
95 reg |= ((uint64_t)data[4]) << 8;
96 reg |= ((uint64_t)data[5]) << 0;
102 std::ostream &operator<<(std::ostream &stream, const EthAddr &ea);
103 bool operator==(const EthAddr &left, const EthAddr &right);
105 struct EthHdr : public eth_hdr
107 uint16_t type() const { return ntohs(eth_type); }
108 const EthAddr &src() const { return *(EthAddr *)ð_src; }
109 const EthAddr &dst() const { return *(EthAddr *)ð_dst; }
111 int size() const { return sizeof(eth_hdr); }
113 const uint8_t *bytes() const { return (const uint8_t *)this; }
114 const uint8_t *payload() const { return bytes() + size(); }
115 uint8_t *bytes() { return (uint8_t *)this; }
116 uint8_t *payload() { return bytes() + size(); }
127 EthPtr(const EthPacketPtr &ptr) : p(ptr) { }
129 EthHdr *operator->() { return (EthHdr *)p->data; }
130 EthHdr &operator*() { return *(EthHdr *)p->data; }
131 operator EthHdr *() { return (EthHdr *)p->data; }
133 const EthHdr *operator->() const { return (const EthHdr *)p->data; }
134 const EthHdr &operator*() const { return *(const EthHdr *)p->data; }
135 operator const EthHdr *() const { return (const EthHdr *)p->data; }
137 const EthPtr &operator=(const EthPacketPtr &ptr) { p = ptr; return *this; }
139 const EthPacketPtr packet() const { return p; }
140 EthPacketPtr packet() { return p; }
141 bool operator!() const { return !p; }
142 operator bool() const { return p; }
143 int off() const { return 0; }
144 int pstart() const { return off() + ((const EthHdr*)p->data)->size(); }
158 IpAddress(const uint32_t __ip) : _ip(__ip)
161 uint32_t ip() const { return _ip; }
163 std::string string() const;
166 std::ostream &operator<<(std::ostream &stream, const IpAddress &ia);
167 bool operator==(const IpAddress &left, const IpAddress &right);
169 struct IpNetmask : public IpAddress
175 IpNetmask() : IpAddress(), _netmask(0)
177 IpNetmask(const uint32_t __ip, const uint8_t __netmask) :
178 IpAddress(__ip), _netmask(__netmask)
181 uint8_t netmask() const { return _netmask; }
183 std::string string() const;
186 std::ostream &operator<<(std::ostream &stream, const IpNetmask &in);
187 bool operator==(const IpNetmask &left, const IpNetmask &right);
189 struct IpWithPort : public IpAddress
195 IpWithPort() : IpAddress(), _port(0)
197 IpWithPort(const uint32_t __ip, const uint16_t __port) :
198 IpAddress(__ip), _port(__port)
201 uint8_t port() const { return _port; }
203 std::string string() const;
206 std::ostream &operator<<(std::ostream &stream, const IpWithPort &iwp);
207 bool operator==(const IpWithPort &left, const IpWithPort &right);
210 struct IpHdr : public ip_hdr
212 uint8_t version() const { return ip_v; }
213 uint8_t hlen() const { return ip_hl * 4; }
214 uint8_t tos() const { return ip_tos; }
215 uint16_t len() const { return ntohs(ip_len); }
216 uint16_t id() const { return ntohs(ip_id); }
217 uint16_t frag_flags() const { return ntohs(ip_off) >> 13; }
218 uint16_t frag_off() const { return ntohs(ip_off) & 0x1fff; }
219 uint8_t ttl() const { return ip_ttl; }
220 uint8_t proto() const { return ip_p; }
221 uint16_t sum() const { return ip_sum; }
222 uint32_t src() const { return ntohl(ip_src); }
223 uint32_t dst() const { return ntohl(ip_dst); }
225 void sum(uint16_t sum) { ip_sum = sum; }
226 void id(uint16_t _id) { ip_id = htons(_id); }
227 void len(uint16_t _len) { ip_len = htons(_len); }
230 bool options(std::vector<const IpOpt *> &vec) const;
232 int size() const { return hlen(); }
233 const uint8_t *bytes() const { return (const uint8_t *)this; }
234 const uint8_t *payload() const { return bytes() + size(); }
235 uint8_t *bytes() { return (uint8_t *)this; }
236 uint8_t *payload() { return bytes() + size(); }
246 void set(const EthPacketPtr &ptr)
251 EthHdr *eth = (EthHdr *)ptr->data;
252 if (eth->type() == ETH_TYPE_IP)
259 IpPtr(const EthPacketPtr &ptr) : p(0) { set(ptr); }
260 IpPtr(const EthPtr &ptr) : p(0) { set(ptr.p); }
261 IpPtr(const IpPtr &ptr) : p(ptr.p) { }
263 IpHdr *get() { return (IpHdr *)(p->data + sizeof(eth_hdr)); }
264 IpHdr *operator->() { return get(); }
265 IpHdr &operator*() { return *get(); }
267 const IpHdr *get() const
268 { return (const IpHdr *)(p->data + sizeof(eth_hdr)); }
269 const IpHdr *operator->() const { return get(); }
270 const IpHdr &operator*() const { return *get(); }
272 const IpPtr &operator=(const EthPacketPtr &ptr) { set(ptr); return *this; }
273 const IpPtr &operator=(const EthPtr &ptr) { set(ptr.p); return *this; }
274 const IpPtr &operator=(const IpPtr &ptr) { p = ptr.p; return *this; }
276 const EthPacketPtr packet() const { return p; }
277 EthPacketPtr packet() { return p; }
278 bool operator!() const { return !p; }
279 operator bool() const { return p; }
280 int off() const { return sizeof(eth_hdr); }
281 int pstart() const { return off() + get()->size(); }
284 uint16_t cksum(const IpPtr &ptr);
286 struct IpOpt : public ip_opt
288 uint8_t type() const { return opt_type; }
289 uint8_t typeNumber() const { return IP_OPT_NUMBER(opt_type); }
290 uint8_t typeClass() const { return IP_OPT_CLASS(opt_type); }
291 uint8_t typeCopied() const { return IP_OPT_COPIED(opt_type); }
292 uint8_t len() const { return IP_OPT_TYPEONLY(type()) ? 1 : opt_len; }
294 bool isNumber(int num) const { return typeNumber() == IP_OPT_NUMBER(num); }
295 bool isClass(int cls) const { return typeClass() == IP_OPT_CLASS(cls); }
296 bool isCopied(int cpy) const { return typeCopied() == IP_OPT_COPIED(cpy); }
298 const uint8_t *data() const { return opt_data.data8; }
299 void sec(ip_opt_data_sec &sec) const;
300 void lsrr(ip_opt_data_rr &rr) const;
301 void ssrr(ip_opt_data_rr &rr) const;
302 void ts(ip_opt_data_ts &ts) const;
303 uint16_t satid() const { return ntohs(opt_data.satid); }
304 uint16_t mtup() const { return ntohs(opt_data.mtu); }
305 uint16_t mtur() const { return ntohs(opt_data.mtu); }
306 void tr(ip_opt_data_tr &tr) const;
307 const uint32_t *addext() const { return &opt_data.addext[0]; }
308 uint16_t rtralt() const { return ntohs(opt_data.rtralt); }
309 void sdb(std::vector<uint32_t> &vec) const;
316 struct TcpHdr : public tcp_hdr
318 uint16_t sport() const { return ntohs(th_sport); }
319 uint16_t dport() const { return ntohs(th_dport); }
320 uint32_t seq() const { return ntohl(th_seq); }
321 uint32_t ack() const { return ntohl(th_ack); }
322 uint8_t off() const { return th_off; }
323 uint8_t flags() const { return th_flags & 0x3f; }
324 uint16_t win() const { return ntohs(th_win); }
325 uint16_t sum() const { return th_sum; }
326 uint16_t urp() const { return ntohs(th_urp); }
328 void sum(uint16_t sum) { th_sum = sum; }
329 void seq(uint32_t _seq) { th_seq = htonl(_seq); }
330 void flags(uint8_t _flags) { th_flags = _flags; }
332 bool options(std::vector<const TcpOpt *> &vec) const;
334 int size() const { return off(); }
335 const uint8_t *bytes() const { return (const uint8_t *)this; }
336 const uint8_t *payload() const { return bytes() + size(); }
337 uint8_t *bytes() { return (uint8_t *)this; }
338 uint8_t *payload() { return bytes() + size(); }
347 void set(const EthPacketPtr &ptr, int offset) { p = ptr; _off = offset; }
348 void set(const IpPtr &ptr)
350 if (ptr && ptr->proto() == IP_PROTO_TCP)
351 set(ptr.p, sizeof(eth_hdr) + ptr->hlen());
357 TcpPtr() : p(0), _off(0) {}
358 TcpPtr(const IpPtr &ptr) : p(0), _off(0) { set(ptr); }
359 TcpPtr(const TcpPtr &ptr) : p(ptr.p), _off(ptr._off) {}
361 TcpHdr *get() { return (TcpHdr *)(p->data + _off); }
362 TcpHdr *operator->() { return get(); }
363 TcpHdr &operator*() { return *get(); }
365 const TcpHdr *get() const { return (const TcpHdr *)(p->data + _off); }
366 const TcpHdr *operator->() const { return get(); }
367 const TcpHdr &operator*() const { return *get(); }
369 const TcpPtr &operator=(const IpPtr &i) { set(i); return *this; }
370 const TcpPtr &operator=(const TcpPtr &t) { set(t.p, t._off); return *this; }
372 const EthPacketPtr packet() const { return p; }
373 EthPacketPtr packet() { return p; }
374 bool operator!() const { return !p; }
375 operator bool() const { return p; }
376 int off() const { return _off; }
377 int pstart() const { return off() + get()->size(); }
380 uint16_t cksum(const TcpPtr &ptr);
382 struct TcpOpt : public tcp_opt
384 uint8_t type() const { return opt_type; }
385 uint8_t len() const { return TCP_OPT_TYPEONLY(type()) ? 1 : opt_len; }
387 bool isopt(int opt) const { return type() == opt; }
389 const uint8_t *data() const { return opt_data.data8; }
391 uint16_t mss() const { return ntohs(opt_data.mss); }
392 uint8_t wscale() const { return opt_data.wscale; }
393 uint32_t echo() const { return ntohl(opt_data.echo); }
394 uint32_t tsval() const { return ntohl(opt_data.timestamp[0]); }
395 uint32_t tsecr() const { return ntohl(opt_data.timestamp[1]); }
396 uint32_t cc() const { return ntohl(opt_data.cc); }
397 uint8_t cksum() const{ return opt_data.cksum; }
398 const uint8_t *md5() const { return opt_data.md5; }
400 int size() const { return len(); }
401 const uint8_t *bytes() const { return (const uint8_t *)this; }
402 const uint8_t *payload() const { return bytes() + size(); }
403 uint8_t *bytes() { return (uint8_t *)this; }
404 uint8_t *payload() { return bytes() + size(); }
410 struct UdpHdr : public udp_hdr
412 uint16_t sport() const { return ntohs(uh_sport); }
413 uint16_t dport() const { return ntohs(uh_dport); }
414 uint16_t len() const { return ntohs(uh_ulen); }
415 uint16_t sum() const { return uh_sum; }
417 void sum(uint16_t sum) { uh_sum = sum; }
418 void len(uint16_t _len) { uh_ulen = htons(_len); }
420 int size() const { return sizeof(udp_hdr); }
421 const uint8_t *bytes() const { return (const uint8_t *)this; }
422 const uint8_t *payload() const { return bytes() + size(); }
423 uint8_t *bytes() { return (uint8_t *)this; }
424 uint8_t *payload() { return bytes() + size(); }
433 void set(const EthPacketPtr &ptr, int offset) { p = ptr; _off = offset; }
434 void set(const IpPtr &ptr)
436 if (ptr && ptr->proto() == IP_PROTO_UDP)
437 set(ptr.p, sizeof(eth_hdr) + ptr->hlen());
443 UdpPtr() : p(0), _off(0) {}
444 UdpPtr(const IpPtr &ptr) : p(0), _off(0) { set(ptr); }
445 UdpPtr(const UdpPtr &ptr) : p(ptr.p), _off(ptr._off) {}
447 UdpHdr *get() { return (UdpHdr *)(p->data + _off); }
448 UdpHdr *operator->() { return get(); }
449 UdpHdr &operator*() { return *get(); }
451 const UdpHdr *get() const { return (const UdpHdr *)(p->data + _off); }
452 const UdpHdr *operator->() const { return get(); }
453 const UdpHdr &operator*() const { return *get(); }
455 const UdpPtr &operator=(const IpPtr &i) { set(i); return *this; }
456 const UdpPtr &operator=(const UdpPtr &t) { set(t.p, t._off); return *this; }
458 const EthPacketPtr packet() const { return p; }
459 EthPacketPtr packet() { return p; }
460 bool operator!() const { return !p; }
461 operator bool() const { return p; }
462 int off() const { return _off; }
463 int pstart() const { return off() + get()->size(); }
466 uint16_t __tu_cksum(const IpPtr &ip);
467 uint16_t cksum(const UdpPtr &ptr);
469 int hsplit(const EthPacketPtr &ptr);
473 #endif // __BASE_INET_HH__