waitinterface.1 (1187B)
1 .TH waitinterface 1 2 .SH NAME 3 waitinterface \- wait for a network interface to show up 4 .SH SYNOPSIS 5 .B waitinterface ifname command ... 6 7 .B waitinterfaceup ifname command ... 8 .SH DESCRIPTION 9 .B waitinterface 10 will wait for /sys/class/net/ifname to show up (it will try for a few 11 seconds, then abort and fail if nothing shows up). 12 13 If it is called under the name waitinterfaceup (make a symbolic or hard 14 link at installation!), it will also wait for the interface to go up. If 15 that does not happen within a few seconds, it will abort and fail. 16 17 If execution gets this far, the rest of the command line is run (using 18 execve, so you have to pass in the full path to the command). 19 20 This program is meant for use when one command loads a network driver 21 into the kernel, and the next program wants to initialize it. There is a 22 race condition between the kernel module creating the network interface 23 and the initialization functions attempting to initialize that 24 interface. In this case you can use waitinterface to delay the 25 initialization until the interface is actually there. 26 27 .SH AUTHOR 28 waitinterface was written by Felix von Leitner and can be downloaded from 29 .I http://www.fefe.de/minit/ 30