📄 linux网络代码导读v0.2（绝对经典，强烈推荐）.mht
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=20
net/ipv4/udp.c<BR> =20
=
=20
| =
ip_build_xmit =20
=20
net/ipv4/ip_output.c<BR> =
=
=20
| =20
output_maybe_reroute =20
net/ipv4/ip_output.c<BR> =
=20
=
| =20
ip_output =
=20
net/ipv4/ip_output.c<BR> =
=20
=
=20
| =
ip_finish_output =20
=20
net/ipv4/ip_output.c<BR> =
=
=20
| =20
dev_queue_xmit =
=20
net/dev.c<BR> =20
=
| =20
=20
=
--------------------------------------------<BR> =20
=
=20
| =20
el3_start_xmit =
=20
driver/net/3c309.c<BR> =
=20
=20
V<BR><BR><BR><BR> =
=20
=20
=
=CE=D2=C3=C7=BC=D9=C9=E8=B5=C4=BB=B7=BE=B3=C8=E7=CF=C2=A3=BA=D3=D0=C1=
=BD=CC=A8=D6=F7=BB=FA=CD=A8=B9=FD=BB=A5=C1=AA=CD=F8=C1=AA=D4=DA=D2=BB=C6=F0=
=A3=AC=C6=E4=D6=D0=D2=BB=CC=A8=BB=FA=D7=D3=D4=CB=D0=D0=D5=E2=D2=BB=B8=F6=BD=
=F8=B3=CCA=A3=AC=C1=ED=CD=E2=D2=BB=CC=A8=D4=CB=D0=D0=BD=F8=B3=CCB=A3=AC=BD=
=F8=B3=CCA=BD=AB=CF=F2=BD=F8=B3=CCB=B7=A2=B3=F6=D2=BB=CC=F5=D0=C5=CF=A2=A3=
=AC=B1=C8=C8=E7"Hello",=B6=F8B=BD=D3=CA=DC=B4=CB=D0=C5=CF=A2=A1=A3<BR>&nb=
sp;=20
=
=20
=20
=
TCP=B4=A6=C0=ED=B1=BE=C9=ED=B7=C7=B3=A3=B8=B4=D4=D3=A3=AC=CE=AA=C1=CB=
=B1=E3=D3=DA=D0=F0=CA=F6=A3=AC=D4=DA=BA=F3=C3=E6=CE=D2=C3=C7=BD=AB=D3=C3U=
DP=D7=F7=CE=AA=C0=FD=D7=D3=A1=A3<BR><BR><BR> =20
=
=20
2.1 =
=BD=A8=C1=A2=CC=D7=BD=D3=D7=D6<BR><BR> =20
=
=20
=
=D4=DA=CA=FD=BE=DD=B7=A2=CB=CD=D6=AE=C7=B0=A3=AC=D2=AA=BD=A8=C1=A2=D2=
=BB=B8=F6=CC=D7=BD=D3=D7=D6=A3=A8socket=A3=A9,=D4=DA=C1=BD=B1=DF=B5=C4=B3=
=CC=D0=F2=D6=D0=B6=BC=BB=E1=B5=F7=D3=C3=C8=E7=CF=C2=D3=EF=BE=E4=A3=BA<BR>=
<BR> =20
=
=20
...<BR> =20
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int sockfd;<BR> =
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sockfd=3Dsocket(AF_INET,SOCK_DGRAM,0);<BR> =20
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...<BR><BR> =
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=
=20
=
=D5=E2=CA=C7=B8=F6=CF=B5=CD=B3=B5=F7=D3=C3=A3=AC=D2=F2=B4=CB=BB=E1=CD=
=A8=B9=FD0x80=D6=D0=B6=CF=BD=F8=C8=EB=CF=B5=CD=B3=C4=DA=BA=CB=A3=AC=B5=F7=
=D3=C3=C4=DA=BA=CB=D6=D0=B5=C4=CF=E0=D3=A6=BA=AF=CA=FD.=B5=B1=D1=B0=D5=D2=
=CF=B5=CD=B3=B5=F7=D3=C3=D4=DA=C4=DA=BA=CB=D6=D0=B5=C4=B6=D4=D3=A6=C1=F7=B3=
=CC=CA=B1=A3=AC=D2=BB=B0=E3=C7=B0=C3=E6=BC=D3=C8=EB"sys_"=D4=D9=D5=D2=BE=CD=
=CA=C7=C1=CB=A3=AC=C8=E7=B6=D4fork=C0=B4=CB=B5=A3=AC=BE=CD=CA=C7=B5=F7=D3=
=C3sys_fork=A1=A3=B5=AB=CA=C7socket=CF=E0=B9=D8=B5=F7=D3=C3=D3=D0=D0=A9=CC=
=D8=CA=E2=A3=AC=CB=F9=D3=D0=B5=C4=D5=E2=C0=E0=B5=F7=D3=C3=B6=BC=CA=C7=CD=A8=
=B9=FD=D2=BB=B8=F6=C8=EB=BF=DA=A3=AC=BC=B4sys_socketcall=BD=F8=C8=EB=CF=B5=
=CD=B3=C4=DA=BA=CB=A3=AC=C8=BB=BA=F3=D4=D9=CD=A8=B9=FD=B2=CE=CA=FD=B5=F7=D3=
=C3=BE=DF=CC=E5=B5=C4sys_socket,socket_bind=B5=C8=BA=AF=CA=FD=A1=A3<BR><B=
R> =20
=
=20
=
sys_socket=BB=E1=B5=F7=D3=C3sock_create=B2=FA=C9=FA=D2=BB=B8=F6stru=
ct=20
<BR> =
=20
=20
=
socket=BD=E1=B9=B9=A3=A8=BC=FBinclude/linux/net.h=A3=A9=A3=AC=C3=BF=
=B8=F6=CC=D7=BD=D3=D7=D6=D4=DA=C4=DA=BA=CB=D6=D0=B6=BC=D3=D0=D2=BB=B8=F6=D5=
=E2=D1=F9=B5=C4=BD=E1=B9=B9=B6=D4=D3=A6=A3=AC=D4=DA=B3=F5=CA=BC=BB=AF=C1=CB=
=B4=CB=BD=E1=B9=B9=B5=C4=D2=BB=D0=A9=CD=A8=D3=C3=B3=C9=D4=B1=BA=F3=A3=A8=C8=
=E7=B7=D6=C5=E4inode=A3=AC=B8=F9=BE=DD=B5=DA=B6=FE=B8=F6=B2=CE=CA=FD=CE=AA=
type=CF=EE=B8=B3=D6=B5=B5=C8=A3=A9=A3=AC=BB=E1=B8=F9=BE=DD=C6=E4=D2=BB=B8=
=F6=B2=CE=CA=FD=D7=F7=CF=EC=D3=A6=B5=C4=B5=F7=B6=C8=A3=AC=BC=B4=D5=E2<BR>=
=20
=
=20
=D2=BB=BE=E4=A3=BA<BR> =
=20
=
=20
...<BR> =20
=20
net_families[family]->create(sock,=20
protocol);<BR> =20
=
... =20
<BR> =
=20
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=20
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=20
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=20
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=20
=
=20
=
=20
<BR> =
=20
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=20
=
=20
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=20
=
=20
=
=20
<BR> =
=20
=
=20
=
=CE=D2=C3=C7=B5=C4=B3=CC=D0=F2=B5=C4=B5=DA=D2=BB=B8=F6=B2=CE=CA=FD=CA=
=C7AF_INET=A3=AC=CB=F9=D2=D4=B4=CB=BA=AF=CA=FD=D6=B8=D5=EB=BB=E1=D6=B8=CF=
=F2inet_create=A3=A8=A3=A9=A3=BB=A3=A8net_families=CA=C7=B8=F6=CA=FD=D7=E9=
=A3=AC=B1=A3=C1=F4=C1=CB=CD=F8=C2=E7=D0=AD=D2=E9=D7=E5=A3=A8net=20
<BR> =
=20
=20
=
families=A3=A9=B5=C4=D0=C5=CF=A2=A3=AC=B6=F8=D5=E2=D0=A9=D0=AD=D2=E9=
=D7=E5=D3=C3sock_register=BC=D3=D4=D8=A1=A3=A3=A9<BR><BR> =20
=
=20
=D4=DAstruct =
socket=BD=E1=B9=B9=BD=E1=B9=B9=D6=D0=D7=EE=D6=D8=D2=AA=B5=C4=D0=C5=CF=A2=B1=
=A3=C1=F4=D4=DAstruct=20
<BR> =
=20
=20
=
sock=BD=E1=B9=B9=D6=D0=A3=AC=D5=E2=B8=F6=BD=E1=B9=B9=D4=DA=CD=F8=C2=
=E7=B4=FA=C2=EB=D6=D0=BE=AD=B3=A3=CA=B9=D3=C3=A3=AC=BD=A8=D2=E9=B0=D1=CB=FC=
=BA=CD=C6=E4=CB=FB=B3=A3=BC=FB=BD=E1=B9=B9=A3=A8=C8=E7struct=20
<BR> =
=20
=20
=
sk_buff=A3=A9=B4=F2=D3=A1=B3=F6=C0=B4=B7=C5=D4=DA=CA=D6=B1=DF=A1=A3=
=D4=DAinet_create=BB=E1=CE=AA=B4=CB=BD=E1=B9=B9=B7=D6=C5=E4=C4=DA=B4=E6=A3=
=AC=B2=A2=B8=F9=BE=DD=CC=D7=BD=D3=D7=D6=C0=E0=D0=CD=A3=A8=C6=E4=CA=B5=BE=CD=
=CA=C7socket=BA=AF=CA=FD=B5=C4=B5=DA=B6=FE=B8=F6=B2=CE=CA=FD=A3=A9=A3=AC=D7=
=F7=B8=F7=D7=D4=B2=BB=CD=AC=B5=C4=B3=F5=CA=BC=BB=AF=A3=BA<BR> =20
=
=20
...<BR> =20
=
=20
if (sk->prot->init) <BR> =
=20
=
=20
=20
=
sk->prot->init(sk);<BR> =20
=
=20
...<BR><BR> =
=20
=
=20
=
=C8=E7=B9=FB=C0=E0=D0=CD=CA=C7SOCK_STREAM=B5=C4=BB=B0=BB=E1=B5=F7=D3=
=C3tcp_v4_init_sock=A3=AC=B6=F8SOCK_DGRAM=C0=E0=D0=CD=B5=C4socket=C3=BB=D3=
=D0=B6=EE=CD=E2=B5=C4=B3=F5=CA=BC=BB=AF=C1=CB=A3=AC=B5=BD=B4=CBsocket=B5=F7=
=D3=C3=BD=E1=CA=F8=A1=A3<BR><BR> =20
=
=20
=20
=
=BB=B9=D3=D0=D2=BB=B8=F6=D6=B5=B5=C3=D7=A2=D2=E2=B5=C4=B5=D8=B7=BD=CA=
=C7=B5=B1inet_create=A3=A8=A3=A9=B5=F7=D3=C3=CD=EA=BA=F3=A3=AC=BB=E1=BD=D3=
=D7=C5=B5=F7=D3=C3sock_map_fd=BA=AF=CA=FD=A3=AC=D5=E2=B8=F6=BA=AF=CA=FD=D6=
=D0=BB=E1=CE=AA=CC=D7=BD=D3=D7=D6=B7=D6=C5=E4=D2=BB=B8=F6=CE=C4=BC=FE=C3=E8=
=CA=F6=B7=FB=B2=A2=B7=D6=C5=E4=D2=BB=B8=F6file=CE=C4=BC=FE=A1=A3=D4=DA=D3=
=A6=D3=C3=B2=E3=B1=E3=BF=C9=CF=F3=B4=A6=C0=ED=CE=C4=BC=FE=D2=BB=D1=F9=B4=A6=
=C0=ED=CC=D7=BD=D3=D7=D6=C1=CB=A1=A3<BR><BR> =20
=
=20
=20
=
=BF=AA=CA=BC=B5=C4=CA=B1=BA=F2=BF=C9=C4=DC=D3=D0=D0=A9=C1=F7=B3=CC=C4=
=D1=D2=D4=B8=FA=CF=C2=C8=A5=A3=AC=D6=F7=D2=AA=B1=E3=CA=C7=D5=E2=D0=A9=BA=AF=
=CA=FD=D6=B8=D5=EB=B5=C4=CA=B5=BC=CA=D6=B8=CF=F2=BB=E1=B8=F9=BE=DD=C0=E0=D0=
=CD=B1=E4=BB=AF=A1=A3<BR><BR><BR> =20
=
=20
2.2 =
=B7=A2=CB=CD=CA=FD=BE=DD<BR><BR> =20
=
=20
=
=B5=B1=BD=F8=B3=CCA=CF=EB=B7=A2=CB=CD=CA=FD=BE=DD=CA=B1=A3=AC=B3=CC=
=D0=F2=D6=D0=BB=E1=B5=F7=D3=C3=C8=E7=CF=C2=D3=EF=BE=E4(=C8=E7=B9=FB=D3=C3=
sendto=BA=AF=CA=FD=B5=C4=BB=B0=BB=E1=D7=DF=C0=E0=CB=C6=B5=C4=C1=F7=B3=CC=A3=
=AC=C2=D4)=A3=BA<BR> =20
=
=20
...<BR> =20
=
=20
write(sockfd,"Hello",strlen("Hello"<IMG=20
=
src=3D"http://25.20.176.12/bbs/images/smilies/wink.gif"=20
align=3DabsMiddle border=3D0>);<BR> =
=20
=
=20
...<BR><BR> =
=20
=20
=
write=D4=DA=C4=DA=BA=CB=D6=D0=B6=D4=D3=A6=B5=C4=BA=AF=CA=FD=BE=CD=CA=
=C7sys_write=A3=AC=B4=CB=BA=AF=CA=FD=CA=D7=CF=C8=B8=F9=BE=DD=CE=C4=BC=FE=C3=
=E8=CA=F6=B7=FB=D5=D2=B5=BDstruct=20
<BR> =
=20
=20
=
file=BD=E1=B9=B9=A3=AC=C8=E7=B9=FB=B4=CB=CE=C4=BC=FE=B4=E6=D4=DA=A3=
=A8file=D6=B8=D5=EB=B7=C7=BF=D5=A3=A9=C7=D2=BF=C9=D0=B4=A3=A8file->f_m=
ode &=20
<BR> =
=20
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