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| -rw-r--r-- | docs/wireless.tex | 82 |
1 files changed, 68 insertions, 14 deletions
diff --git a/docs/wireless.tex b/docs/wireless.tex index 861e04d..5734fc0 100644 --- a/docs/wireless.tex +++ b/docs/wireless.tex @@ -235,30 +235,84 @@ include several functions providing : Each driver script should append the driver to a global DRIVERS variable : -\begin{verbatim} +\begin{Verbatim} append DRIVERS "driver name" -\end{verbatim} +\end{Verbatim} -\subparagraph{scan\_driver} +\subparagraph{\texttt{scan\_<driver>}} This function will parse the \texttt{/etc/config/wireless} and make sure there are no configuration incompatibilities, like enabling hidden SSIDS with ad-hoc mode for instance. This can be more complex if your driver supports a lof of configuration -options. It does not enable your wireless driver to work. +options. It does not change the state of the interface. -\subparagraph{enable\_driver} +Example: +\begin{Verbatim} +scan_dummy() { + local device="$1" + + config_get vifs "$device" vifs + for vif in $vifs; do + # check config consistency for wifi-iface sections + done + # check mode combination +} +\end{Verbatim} -This function will enable the driver and read the configuration file to create application -specific configuration files for the NAS or supplicant program. It will not check the -configuration consistency. +\subparagraph{\texttt{enable\_<driver>}} -\subparagraph{disable\_driver} +This function will bring up the wifi device and optionally create application specific +configuration files, e.g. for the WPA authenticator or supplicant. -This function should properly shutdown the wireless interfaces and kill associated programs -running on top of it. +Example: +\begin{Verbatim} +enable_dummy() { + local device="$1" + + config_get vifs "$device" vifs + for vif in $vifs; do + # bring up virtual interface belonging to + # the wifi-device "$device" + done +} +\end{Verbatim} -\subparagraph{detec\_driver} +\subparagraph{\texttt{disable\_<driver>}} -This function should reliably report the existence of the driver and of one or more of its -wireless interfaces. A basic configuration file has to be generated in the meantime. +This function will bring down the wifi device and all its virtual interfaces (if supported). +Example: +\begin{Verbatim} +disable_dummy() { + local device="$1" + + # bring down virtual interfaces belonging to + # "$device" regardless of whether they are + # configured or not. Don't rely on the vifs + # variable at this point +} +\end{Verbatim} + +\subparagraph{\texttt{detect\_<driver>}} + +This function looks for interfaces that are usable with the driver. Template config sections +for new devices should be written to stdout. Must check for already existing config sections +belonging to the interfaces before creating new templates. + +Example: +\begin{Verbatim} +detect_dummy() { + [ wifi-device = "$(config_get dummydev type)" ] && return 0 + cat <<EOF +config wifi-device dummydev + option type dummy + # REMOVE THIS LINE TO ENABLE WIFI: + option disabled 1 + +config wifi-iface + option device dummydev + option mode ap + option ssid OpenWrt +EOF +} +\end{Verbatim} |