This module implements the binrpc transport interface for SER rpcs. It supports various transports over which it speaks binrpc: Unix datagram sockets, Unix stream sockets, UDP and TCP. It also supports a backward compatible FIFO interface (using the old ser FIFO protocol).
By default (if no parameters are changed from the config file) it uses a Unix stream socket under /tmp: /tmp/ser_ctl. This socket is also the default for sercmd.
In general it's used in conjunction with sercmd. sercmd it's a unix tool for invoking ser/sip-router rpcs. It can be used both in interactive mode (supports tab-completion and history) or command line mode.
Example 1. sercmd example usage
$ sercmd ps 11262 attendant 11268 udp receiver child=0 sock=127.0.0.1:5060 11269 udp receiver child=1 sock=127.0.0.1:5060 11270 udp receiver child=0 sock=192.168.1.101:5060 11271 udp receiver child=1 sock=192.168.1.101:5060 11272 slow timer 11273 timer 11274 ctl handler 11275 tcp receiver child=0 11276 tcp receiver child=1 11277 tcp main process
See utils/sercmd/EXAMPLES
for more examples.
binrpc is a ser proprietary binary protocol for invoking rpcs. It was designed such that it would minimize the packet sizes and it would be very fast to parse (as opposed to XML-rpc).
The binrpc encoding format is fully documented inside modules/ctl/binrpc.h.
Specifies the transport used for the binrpc protocol. The following transport protocol are supported: Unix datagram sockets, Unix stream sockets, UDP and TCP.
The format is: [ protocol:] address_port|path .
For Unix sockets: [unixd|unixs|unix]:path
where "unixd" means Unix datagram sockets and
"unix" "unixs" mean Unix
stream sockets.
Examples: "unixd:/tmp/unix_dgram", "unixs:/tmp/unix_stream",
"unix:/tmp/unix_stream".
For UDP or TCP sockets: [udp|tcp]:address:port. If the address is "*" or missing, it will bind to all the local addresses (0.0.0.0). Examples: "udp:localhost:2046", "tcp:localhost:2046", "tcp:3012", "udp:*:3012".
If the protocol part is missing and the address/path part looks like a file system path it will default to a Unix stream socket and if not to an Unix UDP socket. Examples:
Multiple transports / listen addresses can be specified, just by setting the parameter multiple times.
Default:"unix:/tmp/ser_ctl" (Unix stream socket).
The default value is used only if no
binrpc parameter is found in the config file.
Example 2. Set binrpc parameter
loadmodule "ctl"
# optional listen addresses, if no one is specified,
# ctl will listen on unixs:/tmp/ser_ctl
modparam("ctl", "binrpc", "unix:/tmp/ser_ctl") # default
modparam("ctl", "binrpc", "udp:localhost:2046")
modparam("ctl", "binrpc", "tcp:localhost:2046")
modparam("ctl", "binrpc", "unixd:/tmp/unix_dgram") # unix datagram
modparam("ctl", "binrpc", "unixs:/tmp/unix_stream") # unix stream
modparam("ctl", "binrpc", "unix:/tmp/unix_default") # unix stream
modparam("ctl", "binrpc", "/tmp/unix_test") # unix stream
modparam("ctl", "binrpc", "localhost:3000") # udp
modparam("ctl", "binrpc", "tcp:3012") # tcp any , port 3012
modparam("ctl", "binrpc", "udp:*:3012") # udp any , port 3012
Permissions used for the created Unix sockets or for the fifo.
Default: 0600.
Username or uid used for the created Unix sockets or for the fifo.
Default: not set (the user under which SER runs).
Group name or gid used for the created Unix sockets or for the fifo.
Default: not set (the group under which SER runs).
fifo used for the obsolete fifo protocol.
The fifo protocol can be run over a real fifo, over UDP or over TCP.
Format: [protocol:]path|address.
If no protocol is specified the default is "fifo".
Examples: "fifo:/tmp/ser_fifo", "/tmp/ser_fifo2", "udp:*:2050",
"tcp:localhost:2050".
For more details on the UDP and TCP formats see
binrpc.
Multiple fifos or fifo transports can be used in the same time
(just by setting the fifo parameter multiple
times in the config).
Default: not set (no fifo will be used).
Example 6. Set fifo parameter
# old fifo support
modparam("ctl", "fifo", "fifo:/tmp/ser_fifo") # clasic fifo
modparam("ctl", "fifo", "/tmp/ser_fifo2")
modparam("ctl", "fifo", "udp:*:2050") # fifo protocol over udp
modparam("ctl", "fifo", "tcp:*:2050") # fifo over tcp
Enable or disable automatic type conversion globally, for all the methods parameters. If on, a type mismatch in a method parameter will not cause a fault if it is possible to automatically convert it to the expected type.
Default: off
It is recommended to leave this parameter to its default off value and fix instead the client application (which should use the proper types) or to modify the target rpc to accept any type (see the rpc scan '.' modifier).
Set the size of binrpc buffer for RPC reply. Value represents kilobytes.
Default: 4 (meaning 4KB);