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cookbooks:devel:core [2018/01/15 14:42] miconda [rewriteuri] |
cookbooks:devel:core [2020/04/09 11:39] miconda [Log Engine CLI Parameter] |
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- | ====== Kamailio SIP Server v5.2.x (devel): Core Cookbook ====== | + | ====== Kamailio SIP Server v5.4.x (devel): Core Cookbook ====== |
===== Overview ===== | ===== Overview ===== | ||
Line 9: | Line 9: | ||
===== Structure ===== | ===== Structure ===== | ||
- | The structure of the kamailio.cfg can be seen as thee parts: | + | The structure of the kamailio.cfg can be seen as three parts: |
* global parameters | * global parameters | ||
Line 47: | Line 47: | ||
</ | </ | ||
+ | Usually setting a parameter is ended by end of line, but it can be also ended with **;** (semicolon). This should be used when the grammar of a parameter allows values on multiple lines (like **listen** or **alias**) and the next line creates a conflict by being swallowed as part of value for previous parameter. | ||
+ | |||
+ | <code c> | ||
+ | alias=" | ||
+ | </ | ||
+ | |||
+ | If you want to use a reserved config keyword as part of a parameter, you need to enclose it in quotes. See the example below for the keyword " | ||
+ | |||
+ | <code c> | ||
+ | listen=tcp: | ||
+ | </ | ||
==== Modules Settings Section ==== | ==== Modules Settings Section ==== | ||
Line 125: | Line 136: | ||
"this is a string value" | "this is a string value" | ||
- | 'this is another string value" | + | 'this is another string value' |
// next is a boolean | // next is a boolean | ||
Line 198: | Line 209: | ||
The path_to_file can be relative or absolute. If it is not absolute path, first attempt is to locate it relative to current directory, and if fails, relative to directory of the file that includes it. There is no restriction where include can be used or what can contain - any part of config file is ok. There is a limit of maximum 10 includes in depth, otherwise you can use as many includes as you want. Reporting of the cfg file syntax errors prints now the file name for easier troubleshooting. | The path_to_file can be relative or absolute. If it is not absolute path, first attempt is to locate it relative to current directory, and if fails, relative to directory of the file that includes it. There is no restriction where include can be used or what can contain - any part of config file is ok. There is a limit of maximum 10 includes in depth, otherwise you can use as many includes as you want. Reporting of the cfg file syntax errors prints now the file name for easier troubleshooting. | ||
- | If the included file is not found, the config file parser throws error. | + | If the included file is not found, the config file parser throws error. You can find this error message at the logging destination, |
You can use also the syntax **# | You can use also the syntax **# | ||
Line 234: | Line 245: | ||
Available directives: | Available directives: | ||
- | * #!define NAME - define a keyword | + | |
- | * #!define NAME VALUE - define a keyword with value | + | |
- | * #!ifdef NAME - check if a keyword is defined | + | |
- | * #!ifndef - check if a keyword is not defined | + | |
- | * #!else - swtich | + | |
- | * #!endif - end ifdef/ | + | |
- | * #!trydef - add a define if not already defined | + | |
- | * #!redefine - force redefinition even if already defined | + | |
+ | |||
+ | Predefined keywords: | ||
+ | * **KAMAILIO_X[_Y[_Z]]** - Kamailio versions | ||
+ | * **MOD_X** - when module X has been loaded | ||
+ | See ' | ||
Among benefits: | Among benefits: | ||
- | * easy way to enable/ | + | * easy way to enable/ |
* switch control for parts where conditional statements were not possible (e.g., global parameters, module settings) | * switch control for parts where conditional statements were not possible (e.g., global parameters, module settings) | ||
* faster by not using conditional statements inside routing blocks when switching between running environments | * faster by not using conditional statements inside routing blocks when switching between running environments | ||
Line 370: | Line 386: | ||
Similar to **subst**, but in addition it adds a **#!define ID subst**. | Similar to **subst**, but in addition it adds a **#!define ID subst**. | ||
+ | ==== substdefs ==== | ||
+ | |||
+ | <code c> | ||
+ | #!substdefs "/ | ||
+ | </ | ||
+ | |||
+ | Similar to **subst**, but in addition it adds a **#!define ID " | ||
===== Core Keywords ===== | ===== Core Keywords ===== | ||
- | Keywords specific to SIP messages which can be used mainly in ''' | + | Keywords specific to SIP messages which can be used mainly in '' |
==== af ==== | ==== af ==== | ||
Line 725: | Line 748: | ||
==== auto_bind_ipv6 ==== | ==== auto_bind_ipv6 ==== | ||
- | When turned on, Kamailio will automatically bind to all IPv6 addresses (much like the default behaviour for IPv4). | + | When turned on, Kamailio will automatically bind to all IPv6 addresses (much like the default behaviour for IPv4). Default is 0. |
Example: | Example: | ||
Line 731: | Line 754: | ||
< | < | ||
auto_bind_ipv6=1 | auto_bind_ipv6=1 | ||
+ | </ | ||
+ | |||
+ | ==== bind_ipv6_link_local ==== | ||
+ | |||
+ | If set to 1, try to bind also IPv6 link local addresses by discovering the scope of the interface. This apply for UDP socket for now, to be added for the other protocols. Default is 0. | ||
+ | |||
+ | Example: | ||
+ | |||
+ | < | ||
+ | bind_ipv6_link_local=1 | ||
</ | </ | ||
==== check_via ==== | ==== check_via ==== | ||
Line 792: | Line 825: | ||
Examples of usage: | Examples of usage: | ||
- | * debug=3: print all log messages. This is only usefull | + | * debug=3: print all log messages. This is only useful |
* debug=0: This will only log warning, errors and more critical messages. | * debug=0: This will only log warning, errors and more critical messages. | ||
* debug=-6: This will disable all log messages. | * debug=-6: This will disable all log messages. | ||
Line 801: | Line 834: | ||
kamcmd cfg.set_now_int core debug -- -1 | kamcmd cfg.set_now_int core debug -- -1 | ||
- | Note: There is a difference in log-levels between Kamailio 3.x and Kamailio< | + | Note: There is a difference in log-levels between Kamailio 3.x and Kamailio< |
For configuration of logging of the memory manager see the parameters [[#memlog]] and [[# | For configuration of logging of the memory manager see the parameters [[#memlog]] and [[# | ||
- | Further information can also be bound at: http:// | + | Further information can also be found at: https:// |
==== description ==== | ==== description ==== | ||
Line 855: | Line 888: | ||
==== flags ==== | ==== flags ==== | ||
- | **Alias name: bool** | + | SIP message (transaction) flags can have string names. |
+ | The //name// for flags cannot be used for **branch** or **script flags**(*) | ||
+ | |||
+ | |||
+ | <code c> | ||
+ | ... | ||
+ | flags | ||
+ | FLAG_ONE | ||
+ | FLAG_TWO | ||
+ | ... | ||
+ | </ | ||
+ | |||
+ | (*) The named flags feature was propagated from the source code merge back in 2008 and is not extensively tested. The recommended way of defining flags is using [[cookbooks: | ||
+ | <code c> | ||
+ | #!define FLAG_NAME FLAG_BIT | ||
+ | </ | ||
+ | |||
==== force_rport ==== | ==== force_rport ==== | ||
Line 918: | Line 968: | ||
<code c> | <code c> | ||
ip_free_bind = 1 | ip_free_bind = 1 | ||
+ | </ | ||
+ | |||
+ | ==== kemi.onsend_route_callback ==== | ||
+ | |||
+ | Set the name of callback function in the KEMI script to be executed as the equivalent of `onsend_route` block (from the native configuration file). | ||
+ | |||
+ | Default value: ksr_onsend_route | ||
+ | |||
+ | Set it to empty string or " | ||
+ | |||
+ | Example: | ||
+ | |||
+ | <code c> | ||
+ | kemi.onsend_route_callback=" | ||
+ | </ | ||
+ | |||
+ | ==== kemi.received_route_callback ==== | ||
+ | |||
+ | Set the name of callback function in the KEMI script to be executed as the equivalent of `event_route[core: | ||
+ | |||
+ | Default value: none | ||
+ | |||
+ | Set it to empty string or " | ||
+ | |||
+ | Example: | ||
+ | |||
+ | <code c> | ||
+ | kemi.received_route_callback=" | ||
+ | </ | ||
+ | |||
+ | ==== kemi.reply_route_callback ==== | ||
+ | |||
+ | Set the name of callback function in the KEMI script to be executed as the equivalent of `reply_route` block (from the native configuration file). | ||
+ | |||
+ | Default value: ksr_reply_route | ||
+ | |||
+ | Set it to empty string or " | ||
+ | |||
+ | Example: | ||
+ | |||
+ | <code c> | ||
+ | kemi.onsend_route_callback=" | ||
</ | </ | ||
==== latency_cfg_log ==== | ==== latency_cfg_log ==== | ||
Line 943: | Line 1035: | ||
==== latency_limit_db ==== | ==== latency_limit_db ==== | ||
- | Limit of latency in ms for db operations. If a db operation executed via DB API v1 takes longer that its value, a message is printed in the logs, showing the first 50 characters of the db query. | + | Limit of latency in us (micro-seconds) |
Line 966: | Line 1058: | ||
==== listen ==== | ==== listen ==== | ||
- | Set the network addresses the SIP server should listen to. It can be an IP address, hostname or network | + | Set the network addresses the SIP server should listen to. It can be an IP address, hostname or network |
Example of usage: | Example of usage: | ||
Line 981: | Line 1073: | ||
<code c> | <code c> | ||
- | listen=udp: | + | listen=udp: |
</ | </ | ||
Line 987: | Line 1079: | ||
<code c> | <code c> | ||
- | listen=udp: | + | listen=udp: |
</ | </ | ||
Line 993: | Line 1085: | ||
A typical use case for advertise address is when running SIP server behind a NAT/ | A typical use case for advertise address is when running SIP server behind a NAT/ | ||
+ | |||
+ | A unique name can be set for sockets to simplify the selection of the socket for sending out. For example, the rr and path modules can use the socket name to advertise it in header URI parameter and use it as a shortcut to select the corresponding socket for routing subsequent requests. | ||
+ | |||
+ | The name has to be provided as a string enclosed in between quotes after the **name** identifier. | ||
+ | |||
+ | <code c> | ||
+ | listen=udp: | ||
+ | listen=udp: | ||
+ | listen=udp: | ||
+ | listen=udp: | ||
+ | ... | ||
+ | $fsn = " | ||
+ | t_relay(); | ||
+ | </ | ||
+ | |||
+ | Note that there is no internal check for uniqueness of the socket names, the admin has to ensure it in order to be sure the desired socket is selected, otherwise the first socket with a matching name is used. | ||
==== loadmodule ==== | ==== loadmodule ==== | ||
Line 1077: | Line 1185: | ||
==== log_prefix ==== | ==== log_prefix ==== | ||
- | Specify the text to be prefixed to the log messages printed by Kamailio while processing a SIP message. It can contain script variables that are evaluated at runtime | + | Specify the text to be prefixed to the log messages printed by Kamailio while processing a SIP message |
+ | See [[#log_prefix_mode]] about when/how evaluation is done. | ||
+ | |||
+ | |||
+ | If a log message is printed from a part of the code executed out of routing blocks actions (e.g., can be timer, evapi worker process, ...), there is no log prefix set, because this one requires a valid SIP message structure to work with. | ||
Example - prefix with message type (1 - request, 2 - response), CSeq and Call-ID: | Example - prefix with message type (1 - request, 2 - response), CSeq and Call-ID: | ||
Line 1087: | Line 1199: | ||
==== log_prefix_mode ==== | ==== log_prefix_mode ==== | ||
- | If set to 0 (default), then log_prefix | + | Control if [[# |
+ | |||
+ | If set to 0 (default), then log prefix | ||
- | If set to 1, then the log prefix is evaluated before/ | + | If set to 1, then the log prefix is evaluated before/ |
Example: | Example: | ||
Line 1111: | Line 1225: | ||
log_stderror=yes | log_stderror=yes | ||
+ | |||
+ | ==== cfgengine ==== | ||
+ | |||
+ | Set the config interpreter engine for execution of the routing logic inside the configuration file. Default is the native interpreter. | ||
+ | |||
+ | Example of usage: | ||
+ | |||
+ | cfgengine=" | ||
+ | cfgengine " | ||
+ | |||
+ | If name is " | ||
+ | | ||
+ | The name can be the identifier of an embedded language interpreter, | ||
+ | |||
+ | cfgengine " | ||
==== maxbuffer ==== | ==== maxbuffer ==== | ||
Line 1220: | Line 1349: | ||
It can be set via config reload framework. | It can be set via config reload framework. | ||
- | Default is 0 (disabled). | + | Default is 1 (enabled). |
<code c> | <code c> | ||
Line 1343: | Line 1472: | ||
==== pv_buffer_size ==== | ==== pv_buffer_size ==== | ||
- | The size in bytes of internal buffer to print dynamic strings with pseudo-variables inside. The default value is 8192 (8kB). | + | The size in bytes of internal buffer to print dynamic strings with pseudo-variables inside. The default value is 8192 (8kB). Please keep in mind that for xlog messages, there is a dedicated module parameter to set the internal buffer size. |
Example of usage: | Example of usage: | ||
Line 1359: | Line 1488: | ||
< | < | ||
pv_buffer_slots=12 | pv_buffer_slots=12 | ||
+ | </ | ||
+ | |||
+ | ==== pv_cache_limit ==== | ||
+ | |||
+ | The limit how many pv declarations in the cache after which an action is taken. Default value is 2048. | ||
+ | |||
+ | < | ||
+ | pv_cache_limit=1024 | ||
+ | </ | ||
+ | |||
+ | ==== pv_cache_action ==== | ||
+ | |||
+ | Specify what action to be done when the size of pv cache is exceeded. If 0, print an warning log message when the limit is exceeded. If 1, warning log messages is printed and the cache systems tries to drop a $sht(...) declaration. Default is 0. | ||
+ | |||
+ | < | ||
+ | pv_cache_action=1 | ||
</ | </ | ||
Line 1373: | Line 1518: | ||
< | < | ||
rundir="/ | rundir="/ | ||
+ | </ | ||
+ | |||
+ | ==== received_route_mode ==== | ||
+ | |||
+ | Enable or disable the execution of event_route[core: | ||
+ | |||
+ | Default value: 0 (disabled) | ||
+ | |||
+ | Example of usage: | ||
+ | |||
+ | <code c> | ||
+ | received_route_mode=1 | ||
</ | </ | ||
Line 1382: | Line 1539: | ||
reply_to_via=0 | reply_to_via=0 | ||
+ | | ||
+ | |||
+ | ==== route_locks_size ==== | ||
+ | |||
+ | Set the number of mutex locks to be used for synchronizing the execution of messages sharing the same Call-Id. In other words, enables Kamailio to execute the config script sequentially for the requests and replies received within the same dialog -- a new message received within the same dialog waits until the previous one is routed out. | ||
+ | |||
+ | For smaller impact on parallel processing, its value it should be at least twice the number of Kamailio processes (all children processes). | ||
+ | |||
+ | Example: | ||
+ | |||
+ | <code c> | ||
+ | route_locks_size = 256 | ||
+ | </ | ||
+ | |||
+ | Note that ordering of the SIP messages can still be changed by network transmission (quite likely for UDP, especially on long distance paths) or CPU allocation for processes when executing pre-config and post-config tasks (very low chance, but not to be ruled out completely). | ||
==== server_id ==== | ==== server_id ==== | ||
- | A configurable unique server id that can be used to discriminate server instances within a cluster of servers when all other information, | + | A configurable unique server id that can be used to discriminate server instances within a cluster of servers when all other information, |
<code c> | <code c> | ||
Line 1425: | Line 1597: | ||
==== sip_warning (noisy feedback) ==== | ==== sip_warning (noisy feedback) ==== | ||
- | Can be 0 or 1. If set to 1 (default value) a ' | + | Can be 0 or 1. If set to 1 (default value is 0) a ' |
The header contains several details that help troubleshooting using the network traffic dumps, but might reveal details of your network infrastructure and internal SIP routing. | The header contains several details that help troubleshooting using the network traffic dumps, but might reveal details of your network infrastructure and internal SIP routing. | ||
Line 1539: | Line 1711: | ||
udp_mtu_try_proto = TCP|TLS|SCTP|UDP | udp_mtu_try_proto = TCP|TLS|SCTP|UDP | ||
+ | |||
+ | |||
+ | ==== uri_host_extra_chars ==== | ||
+ | |||
+ | Specify additional chars that should be allowed in the host part of URI. | ||
+ | |||
+ | <code c> | ||
+ | uri_host_extra_chars = " | ||
+ | </ | ||
==== user ==== | ==== user ==== | ||
Line 1573: | Line 1754: | ||
==== version_table ==== | ==== version_table ==== | ||
- | Set the name of the table holding the table version. | + | Set the name of the table holding the table version. |
Example of usage: | Example of usage: | ||
Line 1591: | Line 1772: | ||
or | or | ||
| | ||
+ | |||
+ | ==== xavp_via_params ==== | ||
+ | |||
+ | Set the name of the XAVP of which subfields will be added as local //Via// -header parameters. | ||
+ | |||
+ | If not set, XAVP to Via header parameter manipulation is not applied (default behaviour). | ||
+ | |||
+ | If set, local Via header gets additional parameters from defined XAVP. Core flag FL_ADD_XAVP_VIA_PARAMS needs to be set¹. | ||
+ | |||
+ | Example: | ||
+ | | ||
+ | [1] See function // | ||
+ | |||
+ | ==== xavp_via_fields ==== | ||
+ | |||
+ | Set the name of xavp from where to take Via header field: address and port. | ||
+ | Use them to build local Via header. | ||
+ | |||
+ | Example: | ||
+ | |||
+ | <code c> | ||
+ | xavp_via_fields=" | ||
+ | |||
+ | request_route { | ||
+ | ... | ||
+ | $xavp(customvia=> | ||
+ | $xavp(customvia=> | ||
+ | via_use_xavp_fields(" | ||
+ | t_relay(); | ||
+ | } | ||
+ | </ | ||
+ | |||
+ | See function // | ||
===== DNS Parameters ===== | ===== DNS Parameters ===== | ||
Line 1614: | Line 1828: | ||
Kamailio also allows you to finetune the DNS resolver settings. | Kamailio also allows you to finetune the DNS resolver settings. | ||
- | The maximum time a dns request can take (before failing) is (if dns_try_ipv6 is yes, mutliply | + | The maximum time a dns request can take (before failing) is (if dns_try_ipv6 is yes, multiply |
(dns_retr_time*(dns_retr_no+1)*dns_servers_no)*(search_list_domains) | (dns_retr_time*(dns_retr_no+1)*dns_servers_no)*(search_list_domains) | ||
Line 1810: | Line 2024: | ||
| | ||
+ | |||
+ | ==== tcp_accept_haproxy ==== | ||
+ | Enable the internal TCP stack to expect a PROXY-protocol-formatted header as the first message of the connection. Both the human-readable (v1) and binary-encoded (v2) variants of the protocol are supported. This option is typically useful if you are behind a TCP load-balancer, | ||
+ | |||
+ | Please note that enabling this option will reject any inbound TCP connection that does not conform to the PROXY-protocol spec. | ||
+ | |||
+ | For reference: A PROXY protocol - https:// | ||
+ | |||
+ | Default value is **no**. | ||
+ | |||
+ | <code c> | ||
+ | tcp_accept_haproxy=yes | ||
+ | </ | ||
==== tcp_accept_hep3 ==== | ==== tcp_accept_hep3 ==== | ||
- | Enable internal TCP receiving stack to accept HEP3 packets. This option has to be set to **yes** on a Kamailio instance acting as Home SIPCapture server that is supposed to receive HEP3 packets over TCP/TLS. | + | Enable internal TCP receiving stack to accept HEP3 packets. This option has to be set to **yes** on a Kamailio instance acting as Homer SIPCapture server that is supposed to receive HEP3 packets over TCP/TLS. |
Default value is **no**. | Default value is **no**. | ||
Line 1832: | Line 2059: | ||
</ | </ | ||
+ | ==== tcp_accept_unique ==== | ||
+ | |||
+ | If set to 1, reject duplicate connections coming from same source IP and port. | ||
+ | |||
+ | Default set to 0. | ||
+ | |||
+ | <code c> | ||
+ | tcp_accept_unique = 1 | ||
+ | </ | ||
==== tcp_async ==== | ==== tcp_async ==== | ||
Line 1870: | Line 2106: | ||
tcp_connection_lifetime=3605 | tcp_connection_lifetime=3605 | ||
+ | ==== tcp_connection_match ==== | ||
+ | |||
+ | If set to 1, try to be more strict in matching outbound TCP connections, | ||
+ | |||
+ | Default is 0. | ||
+ | |||
+ | <code c> | ||
+ | tcp_connection_match=1 | ||
+ | </ | ||
==== tcp_connect_timeout ==== | ==== tcp_connect_timeout ==== | ||
Line 1880: | Line 2125: | ||
==== tcp_conn_wq_max ==== | ==== tcp_conn_wq_max ==== | ||
- | Maximum bytes queued for write allowed per connection. Attempting to queue more bytes would result in an error and in the connection being closed (too slow). If tcp_write_buf | + | Maximum bytes queued for write allowed per connection. Attempting to queue more bytes would result in an error and in the connection being closed (too slow). If tcp_buf_write |
tcp_conn_wq_max = bytes (default 32 K) | tcp_conn_wq_max = bytes (default 32 K) | ||
Line 1999: | Line 2244: | ||
==== tcp_wq_max ==== | ==== tcp_wq_max ==== | ||
- | Maximum bytes queued for write allowed globally. It has no effect if tcp_write_buf | + | Maximum bytes queued for write allowed globally. It has no effect if tcp_buf_write |
tcp_wq_max = bytes (default 10 Mb) | tcp_wq_max = bytes (default 10 Mb) | ||
Line 2409: | Line 2654: | ||
Force to send the message from the specified socket (it _must_ be one of the sockets specified with the " | Force to send the message from the specified socket (it _must_ be one of the sockets specified with the " | ||
+ | |||
+ | This function does not support pseudo-variables, | ||
Example of usage: | Example of usage: | ||
Line 2423: | Line 2670: | ||
adds a tcp port alias for the current connection (if tcp). | adds a tcp port alias for the current connection (if tcp). | ||
- | Usefull | + | Useful |
the same connection this request came from [it could help | the same connection this request came from [it could help | ||
for firewall or nat traversal]. | for firewall or nat traversal]. | ||
Line 2453: | Line 2700: | ||
Test if a flag is set for current processed message (if the flag value is 1). The value of the parameter can be in range of 0..31. | Test if a flag is set for current processed message (if the flag value is 1). The value of the parameter can be in range of 0..31. | ||
- | For more see http:// | + | For more see: https:// |
Example of usage: | Example of usage: | ||
Line 2636: | Line 2883: | ||
Example of usage: | Example of usage: | ||
- | set_advertised_address(" | + | set_advertised_address(" |
==== set_advertised_port ==== | ==== set_advertised_port ==== | ||
Line 2729: | Line 2976: | ||
Set a flag for current processed message. The value of the parameter can be in range of 0..31. The flags are used to mark the message for special processing (e.g., accounting) or to keep some state (e.g., message authenticated). | Set a flag for current processed message. The value of the parameter can be in range of 0..31. The flags are used to mark the message for special processing (e.g., accounting) or to keep some state (e.g., message authenticated). | ||
- | For more see http:// | + | For more see: https:// |
Example of usage: | Example of usage: | ||
Line 2763: | Line 3010: | ||
==== userphone ==== | ==== userphone ==== | ||
+ | |||
+ | Add " | ||
===== Custom Global Parameters ===== | ===== Custom Global Parameters ===== | ||
Line 2774: | Line 3023: | ||
</ | </ | ||
+ | |||
+ | The value can be a quoted string or integer number. | ||
Example: | Example: | ||
Line 2960: | Line 3211: | ||
<code c> | <code c> | ||
reply_route { | reply_route { | ||
- | if(status==" | + | if(status==" |
drop; | drop; | ||
} | } | ||
Line 2971: | Line 3222: | ||
- | SIP reply routing block executed by **tm** module. It contains a set of actions to be taken for SIP replies in the contect of an active transaction.. | + | SIP reply routing block executed by **tm** module. It contains a set of actions to be taken for SIP replies in the contect of an active transaction. |
The ' | The ' | ||
- | Main 'onreply_route' block is executed before a possible tm ' | + | Core 'reply_route' block is executed before a possible |
<code c> | <code c> | ||
Line 3002: | Line 3253: | ||
The route is executed in when a SIP request is sent out. Only a limited number of commands are allowed (drop, if + all the checks, msg flag manipulations, | The route is executed in when a SIP request is sent out. Only a limited number of commands are allowed (drop, if + all the checks, msg flag manipulations, | ||
- | In this route the final destination of the message is available | + | In this route the final destination of the message is available |
This route is executed only when forwarding requests - it is not executed for replies, retransmissions, | This route is executed only when forwarding requests - it is not executed for replies, retransmissions, | ||
Line 3029: | Line 3280: | ||
* groupid - should be the name of the module that triggers the event | * groupid - should be the name of the module that triggers the event | ||
* eventid - some meaningful short text describing the event | * eventid - some meaningful short text describing the event | ||
+ | |||
+ | === Core Event Routes === | ||
Implementations: | Implementations: | ||
Line 3040: | Line 3293: | ||
} | } | ||
</ | </ | ||
+ | |||
+ | * **event_route[core: | ||
+ | * it has to be enabled with received_route_mode global parameter. For usage via Kemi, set kemi.received_route_callback global parameter. | ||
+ | * if drop is executed, the received message is no longer processed | ||
+ | |||
+ | <code c> | ||
+ | event_route[core: | ||
+ | xlog(" | ||
+ | if($rcv(srcip) == " | ||
+ | drop; | ||
+ | } | ||
+ | } | ||
+ | </ | ||
+ | === Module Event Routes === | ||
+ | |||
+ | Here are only a few examples, to see if a module exports event_route blocks and when they are executed, check the readme of the module. | ||
+ | |||
* **event_route[htable: | * **event_route[htable: | ||
Line 3080: | Line 3350: | ||
* **event_route [tm: | * **event_route [tm: | ||
<code c> | <code c> | ||
- | event_route [tm:failure-branch] { # Handle failure response | + | request_route { |
+ | ... | ||
+ | t_on_branch_failure(" | ||
+ | t_relay(); | ||
+ | } | ||
+ | |||
+ | event_route[tm: | ||
xlog(" | xlog(" | ||
if (t_check_status(" | if (t_check_status(" | ||
Line 3089: | Line 3365: | ||
} | } | ||
} | } | ||
+ | |||
</ | </ | ||
Line 3263: | Line 3540: | ||
* ^ : bitwise XOR | * ^ : bitwise XOR | ||
* ~ : bitwise NOT | * ~ : bitwise NOT | ||
- | * << : bitwise left shift | + | * <nowiki><<</ |
- | * >> : bitwise right shift | + | * <nowiki>>></ |
Example: | Example: | ||
Line 3316: | Line 3594: | ||
| | ||
Example: if (defined $v && !strempty($v)) $len=strlen($v); | Example: if (defined $v && !strempty($v)) $len=strlen($v); | ||
+ | |||
+ | ===== Command Line Parameters ===== | ||
+ | |||
+ | Kamailio can be started with a set of command line parameters, providing more flexibility to control what is doing at runtime. Some of them can be quite useful when running on containerised environments. | ||
+ | |||
+ | To see the the available command line parameters, run **kamailio -h**: | ||
+ | |||
+ | < | ||
+ | # kamailio -h | ||
+ | |||
+ | version: kamailio 5.4.0-dev4 (x86_64/ | ||
+ | Usage: kamailio [options] | ||
+ | Options: | ||
+ | -a mode Auto aliases mode: enable with yes or on, | ||
+ | disable with no or off | ||
+ | --alias=val | ||
+ | (like for ' | ||
+ | -A define | ||
+ | -A ' | ||
+ | -b nr Maximum receive buffer size which will not be exceeded by | ||
+ | auto-probing procedure even if OS allows | ||
+ | -c Check configuration file for syntax errors | ||
+ | -d | ||
+ | -D | ||
+ | -D..do not fork (almost) anyway; | ||
+ | -DD..do not daemonize creator; | ||
+ | -DDD..daemonize (default) | ||
+ | -e Log messages printed in terminal colors (requires -E) | ||
+ | -E Log to stderr | ||
+ | -f file Configuration file (default: / | ||
+ | -g gid | ||
+ | -G file Create a pgid file | ||
+ | -h This help message | ||
+ | --help | ||
+ | -I Print more internal compile flags and options | ||
+ | -K Turn on " | ||
+ | -l address | ||
+ | mean listening on more addresses). The address format is | ||
+ | [proto: | ||
+ | where proto=udp|tcp|tls|sctp, | ||
+ | addr_lst= addr|(addr, addr_lst), | ||
+ | addr=host|ip_address|interface_name and | ||
+ | advaddr=addr[: | ||
+ | E.g: -l localhost, -l udp: | ||
+ | -l udp: | ||
+ | -l " | ||
+ | The default behaviour is to listen on all the interfaces. | ||
+ | --loadmodule=name load the module specified by name | ||
+ | --log-engine=log engine name and data | ||
+ | -L path Modules search path (default: / | ||
+ | -m nr Size of shared memory allocated in Megabytes | ||
+ | --modparam=modname: | ||
+ | type has to be ' | ||
+ | example: --modparam=corex: | ||
+ | -M nr Size of private memory allocated, in Megabytes | ||
+ | -n processes Number of child processes to fork per interface | ||
+ | (default: 8) | ||
+ | -N | ||
+ | -O nr Script optimization level (debugging option) | ||
+ | -P file Create a pid file | ||
+ | -Q | ||
+ | -r Use dns to check if is necessary to add a " | ||
+ | field to a via | ||
+ | -R Same as `-r` but use reverse dns; | ||
+ | (to use both use `-rR`) | ||
+ | --server-id=num set the value for server_id | ||
+ | --subst=exp set a subst preprocessor directive | ||
+ | --substdef=exp set a substdef preprocessor directive | ||
+ | --substdefs=exp set a substdefs preprocessor directive | ||
+ | -S | ||
+ | -t dir | ||
+ | -T | ||
+ | -u uid | ||
+ | -v | ||
+ | --version | ||
+ | -V | ||
+ | -x name Specify internal manager for shared memory (shm) | ||
+ | - can be: fm, qm or tlsf | ||
+ | -X name Specify internal manager for private memory (pkg) | ||
+ | - if omitted, the one for shm is used | ||
+ | -Y dir | ||
+ | -w dir | ||
+ | -W type poll method (depending on support in OS, it can be: poll, | ||
+ | epoll_lt, epoll_et, sigio_rt, select, kqueue, /dev/poll) | ||
+ | </ | ||
+ | |||
+ | ==== Log Engine CLI Parameter ==== | ||
+ | |||
+ | The **--log-engine** parameter allows to specify what logging engine to be used, which is practically about the format of the log messages. If not set at all, then Kamailio does the classic style of line-based plain text log messages. | ||
+ | |||
+ | The value of this parameter can be **--log-engine=name** or **--log-engine=name: | ||
+ | |||
+ | The name of the log engine can be: | ||
+ | |||
+ | * **json** - write logs in structured JSON format | ||
+ | * the **data** for **json** log engine can be a set of character flags: | ||
+ | * **a** - add log prefix as a special field | ||
+ | * **A** - do not add log prefix | ||
+ | * **c** - add Call-ID (when available) as a dedicated JSON attribute | ||
+ | * **M** - strip EOL (' | ||
+ | * **N** - do not add EOL at the end of JSON document | ||
+ | |||
+ | Example of JSON logs when running Kamailio with " | ||
+ | |||
+ | < | ||
+ | { " | ||
+ | |||
+ | { " | ||
+ | |||
+ | </ |