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TCP/IP詳解
TCP/IP詳解
《TCP/IP詳解》是2000年4月機械工業出版社出版的圖書,作者是[美國]W·Richard Stevens,譯者是范建華。
TCP/IP詳解系列
而另一部就是Stevens寫的這3卷書。這兩套巨著都很有名當是必讀的。
《TCP/IP詳解,卷1:協議》是一本完整而詳細的TCP/IP協議指南。作者用Lawrence Berkeley實驗室的tcpdump程序來捕獲不同操作系統和TCP/IP實現之間傳輸的不同分組。對tcpdump輸出的研究可以幫助理解不同協議如何工作,主要講述TCP/IP協議方面的內容。與其他的TCP/IP書藉的最大不同在於,本書不僅僅講述了RFCS的標準協議,而且結合大量實例講述了TCP/IP協議包的定義原因及在各種不同的操作系統中(如Sunos4.1.3、Soloris2.2、AIX3.2.2)的應用與工作方式,這樣可以以動態方式講述TCP/IP的知識,使讀者可以輕鬆掌握TCP/IP的知識:路由協議、定址協議、組控制協議、簡單郵件傳輸協議等。全書內容實用性強,是在校生學習TCP/IP知識的良師益友。本書適合作為計算機專業學生學習網路的教材和教師參考書。也適用於研究網路的技術人員。
第一章概述介紹了基礎和背景知識,但也提出了許多重要特性如:分層;TCP,UDP的根本區別;End to End與Hop by Hop;IP地址的分類和點分十進位表示法;數據封裝過程;埠號...這些術語在後面的章節會有詳細的解釋.
第二章介紹了TCP/IP的鏈路層協議.乙太網與IEEE802數據封裝的比較;SLIP和PPP.文中作者提到"現在SLIP用戶仍然比PPP用戶多",是由於本書的寫作時間比較早。另外本章還詳細介紹了LOOPBACK,MTU等概念.
第三至十章詳細介紹了IP.IP包結構;IP路由選擇;子網及其掩碼;ARP,RARP協議;ICMP,特別是時間戳和埠不可到達;詳細討論了PING,TRACEROUTE這兩個常用的測試用程序;IP路由和動態選路(路由)協議,特別詳細介紹了RIP,並簡單介紹了OSPF,BGP.與一般的書不同的是本書沒有提及CISCO的IGRP,EIGRP,畢竟這不是為CISCO認證編寫的。
第十一章介紹UDP,起初覺得奇怪,因為夾在中間而不是和第十七章開始的TCP放在一起。後來才發現,從第十二章的廣播開始UDP已經開始使用.
第十二,十三章對廣播,多播(也稱組播)和IGMP協議進行討論。對各種廣播形式進行描述,對組播及其IGMP協議論述相當詳細,組播應用越來越多,大家可以好好學習一下。
第十七至二十四章詳細的討論了TCP.TCP封裝結構;TCP連接建立(三次握手)和拆除,其中介紹了很多一般書上沒有出現的內容如半打開和半關閉;TCP數據交互和窗口機制;TCP超時與重傳(可靠傳輸),並描述了多種實際演演算法;TCP的各種計時器;TCP的一些修改建議,並提出了T/TCP,詳細的介紹和源代碼在下一卷.
其餘的章節用來討論基於TCP的各種應用如遠程登錄的TELNET,RLOGIN,文件傳輸FTP,電子郵件用的SMTP,基於SUN RPC的NFS,和常用的一些FINGER,WHOIS,X WINDOW等應用程序。作者使用了大量的篇幅對每種應用進行了剖析.
在附錄中,作者提供了書中經常提到的tcpdump,sock程序的相關內容;UNIX常用的配置選項;和大量的免費資源和參考文獻.
本書的翻譯一直遭到許多網友的批評,的確譯文中有些術語的把握有些問題,但是還不會影響到讀者的理解。畢竟本書的寫作和翻譯時間較早.
這是一本百讀不厭的寶書,第一次看時可以是對TCP/IP有一個比較全面的了解過程,以後每次看都會發現還需要可以學到新的並發現可以進一步學習的東西。強烈推薦廣大讀者購買。無論你是初學者還是資深網路人士,只要想要一本TCP/IP的書,本書一定是首選!
可惜的是本書不會再有進一步的修改了,已成絕響。對於新技術如IPV6,就只有靠大家自己努力了。有興趣進行進一步研究的編程人員,請繼續關注卷二和卷三。
Preface xix
Chapter 1. Introduction 1
1.1 Introduction 1
1.2 Source Code Presentation 1
1.3 History 3
1.4 Application Programming Interfaces 5
1.5 Example Program 5
1.6 System Calls and Library Functions 7
1.7 Network Implementation Overview 9
1.8 Descriptors 10
1.9 Mbufs (Memory Buffers) and Output Processing 15
1.10 Input Processing 19
1.11 Network Implementation Overview Revisited 22
1.12 Interrupt Levels and Concurrency 23
1.13 Source Code Organization 26
1.14 Test Network 28
1.15 Summary 29
Chapter 2. Mbufs: Memory Buffers 31
2.1 Introduction 31
2.2 Code Introduction 36
2.3 Mbuf Definitions 37
2.4 mbuf Structure 38
2.5 Simple Mbuf Macros and Functions 40
2.6 m_devget and m_pullup Functions 44
2.7 Summary of Mbuf Macros and Functions 51
2.8 Summary of Net/3 Networking Data Structures 54
2.9 m_copy and Cluster Reference Counts 56
2.10 Alternatives 60
2.11 Summary 60
Chapter 3. Interface Layer 63
3.1 Introduction 63
3.2 Code Introduction 64
3.3 ifnet Structure 65
3.4 ifaddr Structure 73
3.5 sockaddr Structure 74
3.6 ifnet and ifaddr Specialization 76
3.7 Network Initialization Overview 77
3.8 Ethernet Initialization 80
3.9 SLIP Initialization 82
3.10 Loopback Initialization 85
3.11 ifat tach Function 85
3.12 ifini tFunction 93
3.13 Summary 94
Chapter 4. Interfaces: Ethernet 95
4.1 Introduction 95
4.2 Code Introduction 96
4.3 Ethernet Interface 98
4.4 ioct1 System Call 114
4.5 Summary 125
Chapter 5. Interfaces: SLIP and Loopback 127
5.1 Introduction 127
5.2 Code Introduction 127
5.3 SLIP Interface 128
5.4 Loopback Interface 150
5.5 Summary 153
Chapter 6. IP Addressing 155
6.1 Introduction 155
6.2 Code Introduction 158
6.3 Interface and Address Summary 158
6.4 sockaddr in Structure 160
6.5 in ifaddr Structure 161
6.6 Address Assignment 161
6.7 Interface ioctl Processing 177
6.8 Internet Utility Functions 181
6.9 ifnet Utility Functions 182
6.10 Summary 183
Chapter 7. Domains and Protocols 185
7.1 Introduction 185
7.2 Code Introduction 186
7.3 domain Structure 187
7.4 protosw Structure 188
7.5 IP domain and protosw Structures 191
7.6 pffindproto and pff indtype Functions 196
7.7 pfcti input Function 198
7.8 IP Initialization 199
7.9 sysctl System Call 201
7.10 Summary 204
Chapter 8. IP: Internet Protocol 205
8.1 Introduction 2205
8.2 Code Introduction 2206
8.3 I P Packets 210
8.4 Input Processing: ipintr Function 2212
8.5 Forwarding: ip_forward Function 2220
8.6 Output Processing: ip_output 2Function 228
8.7 Internet Checksum: in cksum 2Function 234
8.8 setsockopt and getsockopt System Calls 2239
8.9 ip_syscti Function 2244
8.10 Summary 245
Chapter 9. IP Option Processing 247
9.1 Introduction 247
9.2 Code Introduction 247
9.3 Option Format 248
9.4 ip_doopt i ons Function 249
9.5 Record Route Option 252
9.6 Source and Record Route Options 254
9.7 Timestamp Option 261
9.8 ip_insertopt ions Function 265
9.9 ip_pcbopt s Function 269
9.10 Limitations 272
9.11 Summary 272
Chapter 10. IP Fragmentation and Reassembly 275
10.1 Introduction 275
10.2 Code Introduction 277
10.3 Fragmentation 278
10.4 ip_opt copy Function 282
10.5 Reassembly 283
10.6 ip_reass Function 286
10.7 ip_s 1 owt imo Function 298
10.8 Summary 300
Chapter 11. ICMP: Internet Control Message Protocol 301
11.1 Introduction 301
11.2 Code Introduction 305
11.3 icmp Structure 308
11.4 ICMP protosw Structure 309
11.5 Input Processing: icmp_input Function 310
11.6 Error Processing 313
11.7 Request Processing 316
11.8 Redirect Processing 321
11.9 Reply Processing 323
11.10 Output Processing 324
11.11 icmp_error Function 324
11.12 icmp_re f1ect Function 328
11.13 icmp_send Function 333
11.14 i-icmp_sy sctl Function 334
11.15 Summary 335
Chapter 12. IP Multicasting 337
12.1 Introduction 337
12.2 Code Introduction 340
12.3 Ethernet Multicast Addresses 341
12.4 e_ther mu1ti Structure 342
12.5 Ethernet Multicast Reception 344
12.6 in_mu1ti Structure 345
12.7 ip_mopt ions Structure 347
12.8 Multicast Socket Options 348
12.9 Multicast TTL Values 348
12.10 ip_setmoptions Function 351
12.11 Joining an IP Multicast Group 355
12.12 Leaving an IP Multicast Group 366
12.13 ip_getmoptions Function 371
12.14 Multicast Input Processing: ipintr Function 373
12.15 Multicast Output Processing: ip_output Function 375
12.16 Performance Considerations 379
12.17 Summary 379
Chapter 13. IGMP: Internet Group Management Protocol 381
13.1 Introduction 381
13.2 Code Introduction 382
13.3 i_gmp Structu re 384
13.4 IGMP protosw Structure 384
13.5 Joining a Group: igmp_j oingroup Function 386
13.6 i_gmp_fast timo Function 387
13.7 Input Processing: igmp_input Function 391
13.8 Leaving a Group: igmp_leavegroup Function 395
13.9 Summary 396
Chapter 14. IP Multicast Routing 397
14.1 Introduction 397
14.2 Code Introduction 398
14.3 Multicast Output Processing Revisited 399
14.4 mrouted Daemon 401
14.5 Virtual Interfaces 404
14.6 IGMP Revisited 411
14.7 Multicast Routing 416
14.8 Multicast Forwarding: ip_mforward Function 424
14.9 Cleanup: ip_mrouter_done Function 433
14.10 Summary 434
Chapter 15. Socket Layer 435
15.1 Introduction 435
15.2 Code Introduction 436
15.3 socket Structure 437
15.4 System Calls 441
15.5 Processes, Descriptors, and Sockets 445
15.6 socket System Call 447
15.7 getsock and sockargs Functions 451
15.8 bind System Call 453
15.9 1isten System Call 455
15.10 t_sleep and wakeup Functions 456
15.11 accept System Call 457
15.12 sonewconn and soi sconnect ed Functions 461
15.13 connect System call 464
15.14 shut down System Call 468
15.15 c1ose System Call 471
15.16 Summary 474
Chapter 16. Socket I/O 475
16.1 Introduction 475
16.2 Code Introduction 475
16.3 Socket Buffers 476
16.5sendmsgSystem Call 483
16.6 sendit Function 485
16.7 sosend Function 489
16.9 recvmsg System Call 501
16.10 recvit Function 503
16.11 soreceive Function 505
16.12 soreceive Code 510
16.13 select System Call 524
16.14 Summary 534
Chapter 17. Socket Options 537
17.1 Introduction 537
17.2 Code Introduction 538
17.3 sets ockopt System Call 539
17.4 getsockopt System Call 545
17.5 font 1 and ioct 1 System Calls 548
17.6 getsockname System Call 554
17.7 getpeername System Call 554
17.8 Summary 557
Chapter 18. Radix Tree Routing Tables 559
18.1 Introduction 559
18.2 Routing Table Structure 560
18.3 Routing Sockets 569
18.4 Code Introduction 570
18.5 Radix Node Data Structures 573
18.6 Routing Structures 578
18.7 Initialization: route init and rtable init Functions 581
18.8 Initialization: rn init and rn inithead Functions 584
18.9 Duplicate Keys and Mask Lists 587
18.10 rn mat ch Function 591
18.11 rn search Function 599
18.12 Summary 599
Chapter 19. Routing Requests and Routing Messages 601
19.1 Introduction 601
19.2 rtalloc and rtallocl Functions 601
19.3 RTFREE Macro and rtfree Function 604
19.4 rtrequest Function 607
19.5 rt_setgate Function 612
19.6 rt_init Function 615
19.7 rtredirect Function 617
19.8 Routing Message Structures 621
19.9 rt_mi s smsg Function 625
19.10 rtifmsg Function 627
19.11 rt_newaddrms g Function 628
19.12 rt_ms_g 1 Function 630
19.13 rt_ms_g 2 Function 632
19.14 sysctl_rt abl e Function 635
19.15 sysctl_dumpent ry Function 640
19.16 sysctl iflist Function 642
19.17 Summary 644
Chapter 20. Routing Sockets 645
20.1 Introduction 645
20.2 routedomain and protosw Structures 646
20.3 Routing Control Blocks 647
20.4 raw init Function 647
20.5 rout e_output Function 648
20.6 rt_xaddrs Function 660
20.7 rt_setmetrics Function 661
20.8 raw_input Function 662
20.9 route_usrreq Function 664
20.10 raw_u s rreq Function 666
20.11 raw_attach, raw_detach, and raw_disconnect Functions 671
20.12 Summary 672
Chapter 21. ARP: Address Resolution Protocol 675
21.1 Introduction 675
21.2 ARP and the Routing Table 675
21.3 Code Introduction 678
21.4 ARP Structures 681
21.5 arpwhohas Function 683
21.6 arprequest Function 684
21.7 arp int r Function 687
21.8 in_arpinput Function 688
21.9 ARP Timer Functions 694
21.10 arpresolve Function 696
21.11 arpl ookup Function 701
21.12 Proxy ARP 703
21.13 arp_rt request Function 704
21.14 ARP and Multicasting 710
21.15 Summary 711
Chapter 22. Protocol Control Blocks 713
22.1 Introduction 713
22.2 Code Introduction 715
22.3 inpcb Structure 716
22.4 in_pcballoc and in_pcbdetach Functions 717
22.5 Binding, Connecting, and Demultiplexing 719
22.6 in pcblookup Function 724
22.7 in_gcbbind Function 728
22.8 in pcbconnect Function 735
22.9 in_pcbdisconnect Function 741
22.10 in_setsockaddr and in_setpeeraddr Functions 741
22.11 in_pcbnotify, in_rtchange, and in_losing Functions 742
22.12 Implementation Refinements 750
22.13 Summary 751
Chapter 23. UDP: User Datagram Protocol 755
23.1 Introduction 755
23.2 Code Introduction 755
23.3 UDP protosw Structure 758
23.4 UDP Header 759
23.5 udp init Function 760
23.6 udp_output Function 760
23.7 udp_input Function 769
23.8 udp_saveopt Function 781
23.9 udp_ctli nput Function 782
23.10 udp_usrreq Function 784
23.11 udp_sysct 1 Function 790
23.12 Implementation Refinements 791
23.13 Summary 793
Chapter 24. TCP: Transmission Control Protocol 795
24.1 Introduction 795
24.2 Code Introduction 795
24.3 TCP protosw Structure 801
24.4 TCP Header 801
24.5 TCP Control Block 803
24.6 TCP State Transition Diagram 805
24.7 TCP Sequence Numbers 807
24.8 tcp_init Function 812
24.9 Summary 815
Chapter 25. TCP Timers 817
25.1 Introduction 817
25.2 Code Introduction 819
25.3 tcp cancelt imers Function 821
25.4 tcp fast t imo Function 821
25.5 tcp_s 1 owt imo Function 822
25.6 tcp_t imers Function 824
25.7 Retransmission Timer Calculations 831
25.8 tcp newtcpcb Function 833
25.9 tcp_se tper sist Function 835
25.10 tcp_xmi t_t ime r Function 836
25.11 Retransmission Timeout: tcp_t imers Function 841
25.12 An RTT Example 846
25.13 Summary 848
Chapter 26. TCP Output 851
26.1 Introduction 851
26.2 tcp output Overview 852
26.3 Determine if a Segment Should be Sent 852
26.4 TCP Options 864
26.5 Window Scale Option 866
26.6 Timestamp Option 866
26.7 Send a Segment 871
26.8 tcp templ at a Function 884
26.9 tcp respond Function 885
26.10 Summary 888
Chapter 27. TCP Functions 891
27.1 Introduction 891
27.2 tcp_drain Function 892
27.3 tcp drop Function 892
27.4 tcp close Function 893
27.5 tcp mss Function 897
27.6 top cti input Function 904
27.7 tcp notify Function 904
27.8 tcp_quench Function 906
27.9 TCP REASS Macro and tcp_reass Functionv 906
27.10 tcp_trace Function 916
27.11 Summary 920
Chapter 28. TCP Input 923
28.1 Introduction 923
28.2 Preliminary Processing 925
28.3 tcp_doopt ions Function 933
28.4 Header Prediction 934
28.5 TCP Input: Slow Path Processing 941
28.6 Initiation of Passive Open, Completion of Active Open 942
28.7 PAWS: Protection Against Wrapped Sequence Numbers 951
28.8 Trim Segment so Data is Within Window 954
28.9 Self-Connects and Simultaneous Opens 960
28.10 Record Timestamp 963
28.11 RST Processing 963
28.12 Summary 965
Chapter 29. TCP Input (Continued) 967
29.1 Introduction 967
29.2 ACK Processing Overview 967
29.3 Completion of Passive Opens and Simultaneous Opens 967
29.4 Fast Retransmit and Fast Recovery Algorithms 970
29.5 ACK Processing 974
29.6 Update Window Information 981
29.7 Urgent Mode Processing 983
29.8 tcp_pul louto fband Function 986
29.9 Processing of Received Data 988
29.10 FIN Processing 990
29.11 Final Processing 992
29.12 Implementation Refinements 994
29.13 Header Compression 995
29.14 Summary 1004
Chapter 30. TCP User Requests 1007
30.1 Introduction 1007
30.2 tcp_usrreq Function 1007
30.3 tcp attach Function 1018
30.4 tcp disconnect Function 1019
30.5 tcp_usrclosed Function 1021
30.6 t cp_ctloutput Function 1022
30.7 Summary 1025
BPF: BSD Packet Filter 1027
Chapter 31.BPF:BSO Packet Fllter
31.1 Introduction 1027
31.2 Code Introduction 1028
31.3 bp fif Structurev 1029
31.4 bp fd Structure 1032
31.5 BPF Input 1040
31.6 BPF Output 1046
31.7 Summary 1047
Raw IP 1049
Chapter 32.Raw IP
32.1 Introduction 1049
32.2 Code Introduction 1050
32.3 Raw IP protosw Structure 1051
32.4 rip_in it Function 1053
32.5 rip_input Function 1053
32.6 rip output Function 1056
32.7 rlp_usrreq Function 1058
32.8 ripct 1output Function 1063
32.9 Summary 1065
Epilogue 1067
Appendix A.Solutions to Selected Exercises 1069
Appendix B. Source Code Availability 1093
Appendix C. RFC 1122 Compliance 1097
C.1 Link-Layer Requirements 1097
C.2 IP Requirements 1098
C.3 IP Options Requirements 1102
C.4 IP Fragmentation and Reassembly Requirements 1104
C.5 ICMP Requirements 1105
C.6 Multicasting Requirements 1110
C.7 IGMP Requirements 1111
C.8 Routing Requirements 1111
C.9 ARP Requirements 1113
C.10 UDP Requirements 1113
C.11 TCP Requirements 1115
Bibliography 1125
Index 1133