|Script Syntax v3.2|
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The OpenSIPs configuration script has three main logical parts:
Usually, in the first part, you declare the OpenSIPS global parameters - these global or core parameters are affecting the OpenSIPS core and possible the modules.
Configuring the network listeners, available transport protocols, forking (and number of processes), the logging and other global stuff is provided by these global parameters.
disable_tcp = yes listen = udp:192.168.3.20:5060 listen = udp:192.168.3.20:5070 fork = yes children = 4 log_stderror = no
In regards to the OpenSIPS modules,the modules that are to be loaded (no module is loaded by default) are specified by using the directive loadmodule. Modules are to be specified by name and an optional path (to the .so file). If no path is provided (and just the name of the module), the default path will be assumed for locating the loading the module (default path is /usr/lib/opensips/modules if not other one configured at compile time. For configuring a different path, either the path is pushed directly with the module name (to get control per module) or it can be globally (for all modules) configured via the mpath global parameter.
Once the modules are loaded, the parameters of the modules may be set using the modparam directive - to list of available parameters for each module, the type of parameter value (integer or string) can be found in the documentation of the modules, the Parameters section.
loadmodule "modules/mi_datagram/mi_datagram.so" modparam("mi_datagram", "socket_name", "udp:127.0.0.1:4343") modparam("mi_datagram", "children_count", 3)
mpath="/usr/local/opensips_proxy/lib/modules" loadmodule "mi_datagram.so" modparam("mi_datagram", "socket_name", "udp:127.0.0.1:4343") modparam("mi_datagram", "children_count", 3) loadmodule "mi_fifo.so" modparam("mi_fifo", "fifo_name", "/tmp/opensips_fifo")
The routing logic is actually a sum of routes (script routes) that contain the OpenSIPS logic for routing SIP traffic. The description of OpenSIPS behavior in relation to the SIP traffic is done via this routes.
There are different types of routes :
What are the existing top routes, when they are triggered, what kind of SIP messages is handled, what SIP operations are allowed and other are documented in the types of routes section.
The sub-routes have names and they are to be called from any other route (top or sub) in the script via their names. The sub-routes may take parameters (when called) or return a numerical code (avoid returning 0 value as this will terminate your whole script. The sub-routes are similar to functions / procedure in any programing language. See the description of the route directive.
The OpenSIPS scripting language supports the following data types:
... is equivalent to:
$var(x) = 1; ds_select_dst($var(x), $var(x));
Literal "$" characters can be included in a format string using the "$$" escape sequence
NOTE: There still are a few exceptions for the conventions above in the case of string parameters, due to performance optimizations, as some functions still require some parameters to be plain, static strings (e.g. save("location")). Such cases will be noted in the function's documentation.
ds_count(1, "a", $var(out_result));