| divert.4 (92238) | divert.4 (117011) |
|---|---|
| 1.\" $FreeBSD: head/share/man/man4/divert.4 92238 2002-03-13 18:37:40Z keramida $ | 1.\" $FreeBSD: head/share/man/man4/divert.4 117011 2003-06-28 23:53:39Z ru $ |
| 2.\" 3.Dd June 18, 1996 4.Dt DIVERT 4 5.Os 6.Sh NAME 7.Nm divert 8.Nd kernel packet diversion mechanism 9.Sh SYNOPSIS --- 52 unchanged lines hidden (view full) --- 62.Xr write 2 63or 64.Xr send 2 65is used to deliver the packet, or if 66.Xr sendto 2 67is used with a destination IP address of 68.Dv INADDR_ANY , 69then the packet is treated as if it were outgoing, i.e., destined | 2.\" 3.Dd June 18, 1996 4.Dt DIVERT 4 5.Os 6.Sh NAME 7.Nm divert 8.Nd kernel packet diversion mechanism 9.Sh SYNOPSIS --- 52 unchanged lines hidden (view full) --- 62.Xr write 2 63or 64.Xr send 2 65is used to deliver the packet, or if 66.Xr sendto 2 67is used with a destination IP address of 68.Dv INADDR_ANY , 69then the packet is treated as if it were outgoing, i.e., destined |
| 70for a non-local address. Otherwise, the packet is assumed to be | 70for a non-local address. 71Otherwise, the packet is assumed to be |
| 71incoming and full packet routing is done. 72.Pp 73In the latter case, the 74IP address specified must match the address of some local interface, 75or an interface name 76must be found after the IP address. 77If an interface name is found, 78that interface will be used and the value of the IP address will be 79ignored (other than the fact that it is not 80.Dv INADDR_ANY ) . | 72incoming and full packet routing is done. 73.Pp 74In the latter case, the 75IP address specified must match the address of some local interface, 76or an interface name 77must be found after the IP address. 78If an interface name is found, 79that interface will be used and the value of the IP address will be 80ignored (other than the fact that it is not 81.Dv INADDR_ANY ) . |
| 81This is to indicate on which interface the packet ``arrived.'' | 82This is to indicate on which interface the packet 83.Dq arrived . |
| 82.Pp 83Normally, packets read as incoming should be written as incoming; | 84.Pp 85Normally, packets read as incoming should be written as incoming; |
| 84similarly for outgoing packets. When reading and then writing back | 86similarly for outgoing packets. 87When reading and then writing back |
| 85packets, passing the same socket address supplied by 86.Xr recvfrom 2 87unmodified to 88.Xr sendto 2 89simplifies things (see below). 90.Pp 91The port part of the socket address passed to the 92.Xr sendto 2 --- 76 unchanged lines hidden --- | 88packets, passing the same socket address supplied by 89.Xr recvfrom 2 90unmodified to 91.Xr sendto 2 92simplifies things (see below). 93.Pp 94The port part of the socket address passed to the 95.Xr sendto 2 --- 76 unchanged lines hidden --- |