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author | Samuel Thibault <samuel.thibault@ens-lyon.org> | 2012-04-08 23:09:39 +0000 |
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committer | Samuel Thibault <samuel.thibault@ens-lyon.org> | 2012-04-08 23:09:39 +0000 |
commit | 5499792c357777dcfc5ee461fa64baaba1d2dde5 (patch) | |
tree | 15363c44fe541b3adcd720edf39696e9230d7feb /eth-multiplexer/README | |
parent | e5fca9a10c2622b85cc77e776ea56c8dbb9847e6 (diff) | |
parent | c6db537edac054a03847b1b99f78c00703f48d6b (diff) |
Merge branch 'dde' of git.debian.org:/git/pkg-hurd/hurd into dde
Diffstat (limited to 'eth-multiplexer/README')
-rw-r--r-- | eth-multiplexer/README | 27 |
1 files changed, 0 insertions, 27 deletions
diff --git a/eth-multiplexer/README b/eth-multiplexer/README deleted file mode 100644 index 0024a937..00000000 --- a/eth-multiplexer/README +++ /dev/null @@ -1,27 +0,0 @@ -[Introduction] - -eth-multiplexer is a network multiplexer. It creates virtual ethernet interface and dispatches the packet to the right user program that opens its virtual interface. It also works as a bridge to connect the real ethernet interface and the virtual ones. - - -[Usage] - -Usage: eth-multiplexer [OPTION...] -Hurd multiplexer server. - - -i, --interface=DEVICE Network interface to use - -?, --help Give this help list - --usage Give a short usage message - -V, --version Print program version - -Mandatory or optional arguments to long options are also mandatory or optional -for any corresponding short options. - - -The '-i' option specifies the network interface the translator sits on. eth-multiplexer can only connect to one network interface and the '-i' option should be only used once. DEVICE is a device file that is created by the devnode translator. - - -[Internal] - -eth-multiplexer implements the server side functions in device.defs, so other programs can access the virtual device as other devices. All information about the virtual interface is kept in the vether_device structure. -When eth-multiplexer gets a packet from a virtual interface (which happens in ds_device_write) or from the real interface (which happens in ethernet_demuxer), it sends the packet to all other interfaces. eth-multipexer has BPF filters for each client. The BPF filter decides whether to deliver the packet. The packet delivery is done by deliver_pack(). There is no filter for the real network interface in eth-multiplexer, so every packet from the virtual interface will be sent to the real interface whose filter will decide the destination of the packet. -eth-multiplexer sets the real interface into the promiscuous mode, so eth-multiplexer can receive the packet with the virtual interface's hardware address from the real interface. |