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janus.c File Reference

Janus core. More...

#include <dlfcn.h>
#include <dirent.h>
#include <net/if.h>
#include <netdb.h>
#include <signal.h>
#include <getopt.h>
#include <sys/resource.h>
#include <sys/stat.h>
#include <fcntl.h>
#include <poll.h>
#include "janus.h"
#include "version.h"
#include "cmdline.h"
#include "config.h"
#include "apierror.h"
#include "debug.h"
#include "ip-utils.h"
#include "rtcp.h"
#include "auth.h"
#include "record.h"
#include "events.h"
Include dependency graph for janus.c:

Macros

#define JANUS_NAME   "Janus WebRTC Server"
 
#define JANUS_AUTHOR   "Meetecho s.r.l."
 
#define JANUS_SERVER_NAME   "MyJanusInstance"
 
#define SHLIB_EXT   ".so"
 
#define DEFAULT_SESSION_TIMEOUT   60
 
#define DEFAULT_RECLAIM_SESSION_TIMEOUT   0
 
#define DEFAULT_CANDIDATES_TIMEOUT   45
 

Functions

json_tjanus_admin_peerconnection_summary (janus_ice_peerconnection *pc)
 
json_tjanus_admin_peerconnection_medium_summary (janus_ice_peerconnection_medium *medium)
 
gchar * janus_get_local_ip (void)
 Helper method to return the local IP address (autodetected by default) More...
 
guint janus_get_public_ip_count (void)
 Helper method to return the number of public IP addresses (if configured for 1-1 NAT) More...
 
gchar * janus_get_public_ip (guint index)
 Helper method to return a given public IP address to use in the SDP (if multiple are configured for 1-1 NAT) More...
 
void janus_add_public_ip (const gchar *ip)
 
gboolean janus_has_public_ipv4_ip (void)
 Helper method to check if we have at least one manually passed public IPv4 address (for 1-1 NAT management) More...
 
gboolean janus_has_public_ipv6_ip (void)
 Helper method to check if we have at least one manually passed public IPv6 address (for 1-1 NAT management) More...
 
gint janus_is_stopping (void)
 Helper method to check whether the server is being shut down. More...
 
gboolean janus_is_webrtc_encryption_enabled (void)
 Helper method to check whether WebRTC encryption is (as it should) enabled. More...
 
janus_sessionjanus_session_create (guint64 session_id)
 Method to create a new Janus Core-Client session. More...
 
janus_sessionjanus_session_find (guint64 session_id)
 Method to find an existing Janus Core-Client session from its ID. More...
 
void janus_session_notify_event (janus_session *session, json_t *event)
 Method to add an event to notify to the queue of notifications for this session. More...
 
gint janus_session_destroy (janus_session *session)
 Method to destroy a Janus Core-Client session. More...
 
janus_ice_handlejanus_session_handles_find (janus_session *session, guint64 handle_id)
 Method to find an existing Janus ICE handle from its ID. More...
 
void janus_session_handles_insert (janus_session *session, janus_ice_handle *handle)
 Method to insert a Janus ICE handle in a session. More...
 
gint janus_session_handles_remove (janus_session *session, janus_ice_handle *handle)
 Method to remove a Janus ICE handle from a session. More...
 
void janus_session_handles_clear (janus_session *session)
 Method to remove all Janus ICE handles from a session. More...
 
json_tjanus_session_handles_list_json (janus_session *session)
 Method to list the IDs of all Janus ICE handles of a session as JSON. More...
 
janus_requestjanus_request_new (janus_transport *transport, janus_transport_session *instance, void *request_id, gboolean admin, json_t *message)
 Helper to allocate a janus_request instance. More...
 
void janus_request_destroy (janus_request *request)
 Helper to destroy a janus_request instance. More...
 
int janus_process_incoming_request (janus_request *request)
 Helper to process an incoming request, no matter where it comes from. More...
 
int janus_process_incoming_admin_request (janus_request *request)
 Helper to process an incoming admin/monitor request, no matter where it comes from. More...
 
int janus_process_success (janus_request *request, json_t *payload)
 Method to return a successful Janus response message (JSON) to the browser. More...
 
int janus_process_error (janus_request *request, uint64_t session_id, const char *transaction, gint error, const char *format,...)
 
void janus_transport_close (gpointer key, gpointer value, gpointer user_data)
 
void janus_transportso_close (gpointer key, gpointer value, gpointer user_data)
 
void janus_eventhandler_close (gpointer key, gpointer value, gpointer user_data)
 
void janus_eventhandlerso_close (gpointer key, gpointer value, gpointer user_data)
 
void janus_logger_close (gpointer key, gpointer value, gpointer user_data)
 
void janus_loggerso_close (gpointer key, gpointer value, gpointer user_data)
 
void janus_plugin_close (gpointer key, gpointer value, gpointer user_data)
 
void janus_pluginso_close (gpointer key, gpointer value, gpointer user_data)
 
janus_pluginjanus_plugin_find (const gchar *package)
 Method to return a registered plugin instance out of its package name. More...
 
gint main (int argc, char *argv[])
 

Variables

gboolean public_ips_ipv4 = FALSE
 
gboolean public_ips_ipv6 = FALSE
 
int janus_log_level = LOG_INFO
 
gboolean janus_log_timestamps = FALSE
 
gboolean janus_log_colors = FALSE
 
char * janus_log_global_prefix = NULL
 
int lock_debug = 0
 
int refcount_debug = 0
 

Transport plugin callback interface

These are the callbacks implemented by the Janus core, as part of the janus_transport_callbacks interface. Everything the transport plugins send the core is handled here.

void janus_transport_incoming_request (janus_transport *plugin, janus_transport_session *transport, void *request_id, gboolean admin, json_t *message, json_error_t *error)
 
void janus_transport_gone (janus_transport *plugin, janus_transport_session *transport)
 
gboolean janus_transport_is_api_secret_needed (janus_transport *plugin)
 
gboolean janus_transport_is_api_secret_valid (janus_transport *plugin, const char *apisecret)
 
gboolean janus_transport_is_auth_token_needed (janus_transport *plugin)
 
gboolean janus_transport_is_auth_token_valid (janus_transport *plugin, const char *token)
 
void janus_transport_notify_event (janus_transport *plugin, void *transport, json_t *event)
 
void janus_transport_task (gpointer data, gpointer user_data)
 

Plugin callback interface

These are the callbacks implemented by the Janus core, as part of the janus_callbacks interface. Everything the plugins send the core is handled here.

int janus_plugin_push_event (janus_plugin_session *plugin_session, janus_plugin *plugin, const char *transaction, json_t *message, json_t *jsep)
 
json_tjanus_plugin_handle_sdp (janus_plugin_session *plugin_session, janus_plugin *plugin, const char *sdp_type, const char *sdp, gboolean restart)
 
void janus_plugin_relay_rtp (janus_plugin_session *plugin_session, janus_plugin_rtp *packet)
 
void janus_plugin_relay_rtcp (janus_plugin_session *plugin_session, janus_plugin_rtcp *packet)
 
void janus_plugin_relay_data (janus_plugin_session *plugin_session, janus_plugin_data *message)
 
void janus_plugin_send_pli (janus_plugin_session *plugin_session)
 
void janus_plugin_send_pli_stream (janus_plugin_session *plugin_session, int mindex)
 
void janus_plugin_send_remb (janus_plugin_session *plugin_session, uint32_t bitrate)
 
void janus_plugin_close_pc (janus_plugin_session *plugin_session)
 
void janus_plugin_end_session (janus_plugin_session *plugin_session)
 
void janus_plugin_notify_event (janus_plugin *plugin, janus_plugin_session *plugin_session, json_t *event)
 
gboolean janus_plugin_auth_is_signature_valid (janus_plugin *plugin, const char *token)
 
gboolean janus_plugin_auth_signature_contains (janus_plugin *plugin, const char *token, const char *desc)
 

Detailed Description

Janus core.

Author
Lorenzo Miniero loren.nosp@m.zo@m.nosp@m.eetec.nosp@m.ho.c.nosp@m.om

Core

Macro Definition Documentation

◆ DEFAULT_CANDIDATES_TIMEOUT

#define DEFAULT_CANDIDATES_TIMEOUT   45

◆ DEFAULT_RECLAIM_SESSION_TIMEOUT

#define DEFAULT_RECLAIM_SESSION_TIMEOUT   0

◆ DEFAULT_SESSION_TIMEOUT

#define DEFAULT_SESSION_TIMEOUT   60

◆ JANUS_AUTHOR

#define JANUS_AUTHOR   "Meetecho s.r.l."

◆ JANUS_NAME

#define JANUS_NAME   "Janus WebRTC Server"

◆ JANUS_SERVER_NAME

#define JANUS_SERVER_NAME   "MyJanusInstance"

◆ SHLIB_EXT

#define SHLIB_EXT   ".so"

Function Documentation

◆ janus_add_public_ip()

void janus_add_public_ip ( const gchar *  ip)

◆ janus_admin_peerconnection_medium_summary()

json_t * janus_admin_peerconnection_medium_summary ( janus_ice_peerconnection_medium medium)

◆ janus_admin_peerconnection_summary()

json_t * janus_admin_peerconnection_summary ( janus_ice_peerconnection pc)

◆ janus_eventhandler_close()

void janus_eventhandler_close ( gpointer  key,
gpointer  value,
gpointer  user_data 
)

◆ janus_eventhandlerso_close()

void janus_eventhandlerso_close ( gpointer  key,
gpointer  value,
gpointer  user_data 
)

◆ janus_get_local_ip()

gchar* janus_get_local_ip ( void  )

Helper method to return the local IP address (autodetected by default)

◆ janus_get_public_ip()

gchar* janus_get_public_ip ( guint  index)

Helper method to return a given public IP address to use in the SDP (if multiple are configured for 1-1 NAT)

◆ janus_get_public_ip_count()

guint janus_get_public_ip_count ( void  )

Helper method to return the number of public IP addresses (if configured for 1-1 NAT)

◆ janus_has_public_ipv4_ip()

gboolean janus_has_public_ipv4_ip ( void  )

Helper method to check if we have at least one manually passed public IPv4 address (for 1-1 NAT management)

◆ janus_has_public_ipv6_ip()

gboolean janus_has_public_ipv6_ip ( void  )

Helper method to check if we have at least one manually passed public IPv6 address (for 1-1 NAT management)

◆ janus_is_stopping()

gint janus_is_stopping ( void  )

Helper method to check whether the server is being shut down.

◆ janus_is_webrtc_encryption_enabled()

gboolean janus_is_webrtc_encryption_enabled ( void  )

Helper method to check whether WebRTC encryption is (as it should) enabled.

Note
This is required by the ICE and DTLS portions of the code to decide whether to do the DTLS handshake, and whether SRTP encryption is required. Disabling the WebRTC encryption is supposed to be a debugging tool you can use with the Chrome setting with the same name, –disable-webrtc-encryption , and you should NEVER use it otherwise (it would simply not work with regular WebRTC endpoints).
Returns
TRUE if WebRTC encryption is enabled (the default), and FALSE otherwise

◆ janus_logger_close()

void janus_logger_close ( gpointer  key,
gpointer  value,
gpointer  user_data 
)

◆ janus_loggerso_close()

void janus_loggerso_close ( gpointer  key,
gpointer  value,
gpointer  user_data 
)

◆ janus_plugin_auth_is_signature_valid()

gboolean janus_plugin_auth_is_signature_valid ( janus_plugin plugin,
const char *  token 
)

◆ janus_plugin_auth_signature_contains()

gboolean janus_plugin_auth_signature_contains ( janus_plugin plugin,
const char *  token,
const char *  desc 
)

◆ janus_plugin_close()

void janus_plugin_close ( gpointer  key,
gpointer  value,
gpointer  user_data 
)

◆ janus_plugin_close_pc()

void janus_plugin_close_pc ( janus_plugin_session plugin_session)

◆ janus_plugin_end_session()

void janus_plugin_end_session ( janus_plugin_session plugin_session)

◆ janus_plugin_find()

janus_plugin* janus_plugin_find ( const gchar *  package)

Method to return a registered plugin instance out of its package name.

Parameters
[in]packageThe unique package name of the plugin
Returns
The plugin instance

◆ janus_plugin_handle_sdp()

json_t * janus_plugin_handle_sdp ( janus_plugin_session plugin_session,
janus_plugin plugin,
const char *  sdp_type,
const char *  sdp,
gboolean  restart 
)

◆ janus_plugin_notify_event()

void janus_plugin_notify_event ( janus_plugin plugin,
janus_plugin_session plugin_session,
json_t event 
)

◆ janus_plugin_push_event()

int janus_plugin_push_event ( janus_plugin_session plugin_session,
janus_plugin plugin,
const char *  transaction,
json_t message,
json_t jsep 
)

◆ janus_plugin_relay_data()

void janus_plugin_relay_data ( janus_plugin_session plugin_session,
janus_plugin_data message 
)

◆ janus_plugin_relay_rtcp()

void janus_plugin_relay_rtcp ( janus_plugin_session plugin_session,
janus_plugin_rtcp packet 
)

◆ janus_plugin_relay_rtp()

void janus_plugin_relay_rtp ( janus_plugin_session plugin_session,
janus_plugin_rtp packet 
)

◆ janus_plugin_send_pli()

void janus_plugin_send_pli ( janus_plugin_session plugin_session)

◆ janus_plugin_send_pli_stream()

void janus_plugin_send_pli_stream ( janus_plugin_session plugin_session,
int  mindex 
)

◆ janus_plugin_send_remb()

void janus_plugin_send_remb ( janus_plugin_session plugin_session,
uint32_t  bitrate 
)

◆ janus_pluginso_close()

void janus_pluginso_close ( gpointer  key,
gpointer  value,
gpointer  user_data 
)

◆ janus_process_error()

int janus_process_error ( janus_request request,
uint64_t  session_id,
const char *  transaction,
gint  error,
const char *  format,
  ... 
)

◆ janus_process_incoming_admin_request()

int janus_process_incoming_admin_request ( janus_request request)

Helper to process an incoming admin/monitor request, no matter where it comes from.

Parameters
[in]requestThe request instance and its source
Returns
0 on success, a negative integer otherwise

◆ janus_process_incoming_request()

int janus_process_incoming_request ( janus_request request)

Helper to process an incoming request, no matter where it comes from.

Parameters
[in]requestThe JSON request
Returns
0 on success, a negative integer otherwise

◆ janus_process_success()

int janus_process_success ( janus_request request,
json_t payload 
)

Method to return a successful Janus response message (JSON) to the browser.

Parameters
[in]requestThe request instance and its source
[in]payloadThe payload to return as a JSON object
Returns
0 on success, a negative integer otherwise

◆ janus_request_destroy()

void janus_request_destroy ( janus_request request)

Helper to destroy a janus_request instance.

Parameters
[in]requestThe janus_request instance to destroy
Note
The opaque pointers in the instance are not destroyed, that's up to you

◆ janus_request_new()

janus_request* janus_request_new ( janus_transport transport,
janus_transport_session instance,
void *  request_id,
gboolean  admin,
json_t message 
)

Helper to allocate a janus_request instance.

Parameters
[in]transportPointer to the transport
[in]instancePointer to the transport-provided session instance
[in]request_idOpaque pointer to the request ID, if available
[in]adminWhether this is a Janus API or Admin API request
[in]messageOpaque pointer to the original request, if available
Returns
A pointer to a janus_request instance if successful, NULL otherwise

◆ janus_session_create()

janus_session* janus_session_create ( guint64  session_id)

Method to create a new Janus Core-Client session.

Parameters
[in]session_idThe desired Janus Core-Client session ID, or 0 if it needs to be generated randomly
Returns
The created Janus Core-Client session if successful, NULL otherwise

◆ janus_session_destroy()

gint janus_session_destroy ( janus_session session)

Method to destroy a Janus Core-Client session.

Parameters
[in]sessionThe Janus Core-Client session to destroy
Returns
0 in case of success, a negative integer otherwise

◆ janus_session_find()

janus_session* janus_session_find ( guint64  session_id)

Method to find an existing Janus Core-Client session from its ID.

Parameters
[in]session_idThe Janus Core-Client session ID
Returns
The created Janus Core-Client session if successful, NULL otherwise

◆ janus_session_handles_clear()

void janus_session_handles_clear ( janus_session session)

Method to remove all Janus ICE handles from a session.

Parameters
[in]sessionThe Janus Core-Client session

◆ janus_session_handles_find()

janus_ice_handle* janus_session_handles_find ( janus_session session,
guint64  handle_id 
)

Method to find an existing Janus ICE handle from its ID.

Parameters
[in]sessionThe Janus Core-Client session this ICE handle belongs to
[in]handle_idThe Janus ICE handle ID
Returns
The Janus ICE handle if successful, NULL otherwise

◆ janus_session_handles_insert()

void janus_session_handles_insert ( janus_session session,
janus_ice_handle handle 
)

Method to insert a Janus ICE handle in a session.

Parameters
[in]sessionThe Janus Core-Client session
[in]handleThe Janus ICE handle

◆ janus_session_handles_list_json()

json_t* janus_session_handles_list_json ( janus_session session)

Method to list the IDs of all Janus ICE handles of a session as JSON.

Parameters
[in]sessionThe Janus Core-Client session
Returns
The JSON array

◆ janus_session_handles_remove()

gint janus_session_handles_remove ( janus_session session,
janus_ice_handle handle 
)

Method to remove a Janus ICE handle from a session.

Parameters
[in]sessionThe Janus Core-Client session
[in]handleThe Janus ICE handle
Returns
The error code of janus_ice_handle_destroy

◆ janus_session_notify_event()

void janus_session_notify_event ( janus_session session,
json_t event 
)

Method to add an event to notify to the queue of notifications for this session.

Parameters
[in]sessionThe Janus Core-Client session this notification is related to
[in]eventThe event to notify as a Jansson JSON object

◆ janus_transport_close()

void janus_transport_close ( gpointer  key,
gpointer  value,
gpointer  user_data 
)

◆ janus_transport_gone()

void janus_transport_gone ( janus_transport plugin,
janus_transport_session transport 
)

◆ janus_transport_incoming_request()

void janus_transport_incoming_request ( janus_transport plugin,
janus_transport_session transport,
void *  request_id,
gboolean  admin,
json_t message,
json_error_t *  error 
)

◆ janus_transport_is_api_secret_needed()

gboolean janus_transport_is_api_secret_needed ( janus_transport plugin)

◆ janus_transport_is_api_secret_valid()

gboolean janus_transport_is_api_secret_valid ( janus_transport plugin,
const char *  apisecret 
)

◆ janus_transport_is_auth_token_needed()

gboolean janus_transport_is_auth_token_needed ( janus_transport plugin)

◆ janus_transport_is_auth_token_valid()

gboolean janus_transport_is_auth_token_valid ( janus_transport plugin,
const char *  token 
)

◆ janus_transport_notify_event()

void janus_transport_notify_event ( janus_transport plugin,
void *  transport,
json_t event 
)

◆ janus_transport_task()

void janus_transport_task ( gpointer  data,
gpointer  user_data 
)

◆ janus_transportso_close()

void janus_transportso_close ( gpointer  key,
gpointer  value,
gpointer  user_data 
)

◆ main()

gint main ( int  argc,
char *  argv[] 
)

Variable Documentation

◆ janus_log_colors

gboolean janus_log_colors = FALSE

◆ janus_log_global_prefix

char* janus_log_global_prefix = NULL

◆ janus_log_level

int janus_log_level = LOG_INFO

◆ janus_log_timestamps

gboolean janus_log_timestamps = FALSE

◆ lock_debug

int lock_debug = 0

◆ public_ips_ipv4

gboolean public_ips_ipv4 = FALSE

◆ public_ips_ipv6

gboolean public_ips_ipv6 = FALSE

◆ refcount_debug

int refcount_debug = 0