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FS-5106 fire an event when a sip client doesn't respond to option-ping

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When all-reg-options-ping is enabled, this adds a new custom event to mod_sofia
(sofia::sip_user_state), which is fired when a client stops responding to such
ping packets (or when it is reachable again).

Add two needed new columns to the sip_registrations table:
  - ping_status, which is "Reachable" or "Unreachable" depending on the client
    status;
  - ping_count, which tracks the number of ping responses received and is used
    to provide some kind of hysteresis to avoid firing the event in case of
    transitory network failures.

Then ping_count is checked against two threshold values, sip-user-ping-min
and sip-user-ping-max in a similar fashion as the ping-{max,min} options for
the gateways. These two values are configurable in the profile's xml
configuration file.

Also, if unregister-on-options-fail is enabled, the client is unregistered
based on the number of OPTIONS failure which is also checked against the
sip-user-ping-{min,max} values.
This commit is contained in:
Flavio Grossi
2014-09-09 09:43:47 +02:00
parent dac4afbfdb
commit 5653551904
5 changed files with 208 additions and 28 deletions
Download Patch File Download Diff File Expand all files Collapse all files
src/mod/endpoints/mod_sofia/mod_sofia.h
+13
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@@ -84,6 +84,7 @@ typedef struct private_object private_object_t;
#define MY_EVENT_UNREGISTER "sofia::unregister"
#define MY_EVENT_EXPIRE "sofia::expire"
#define MY_EVENT_GATEWAY_STATE "sofia::gateway_state"
#define MY_EVENT_SIP_USER_STATE "sofia::sip_user_state"
#define MY_EVENT_NOTIFY_REFER "sofia::notify_refer"
#define MY_EVENT_REINVITE "sofia::reinvite"
#define MY_EVENT_GATEWAY_ADD "sofia::gateway_add"
@@ -426,6 +427,13 @@ typedef enum {
SOFIA_GATEWAY_INVALID
} sofia_gateway_status_t;
typedef enum {
SOFIA_REG_REACHABLE,
SOFIA_REG_UNREACHABLE,
SOFIA_REG_INVALID
} sofia_sip_user_status_t;
typedef enum {
SUB_STATE_UNSUBED,
SUB_STATE_TRYING,
@@ -603,6 +611,8 @@ struct sofia_profile {
char *challenge_realm;
char *pnp_prov_url;
char *pnp_notify_profile;
int sip_user_ping_max;
int sip_user_ping_min;
sofia_cid_type_t cid_type;
switch_core_media_dtmf_t dtmf_type;
int auto_restart;
@@ -1124,6 +1134,9 @@ void sofia_profile_destroy(sofia_profile_t *profile);
switch_status_t sip_dig_function(_In_opt_z_ const char *cmd, _In_opt_ switch_core_session_t *session, _In_ switch_stream_handle_t *stream);
const char *sofia_gateway_status_name(sofia_gateway_status_t status);
void sofia_reg_fire_custom_gateway_state_event(sofia_gateway_t *gateway, int status, const char *phrase);
const char *sofia_sip_user_status_name(sofia_sip_user_status_t status);
void sofia_reg_fire_custom_sip_user_state_event(sofia_profile_t *profile, const char *sip_user, const char *contact,
const char* from_user, const char* from_host, const char *call_id, sofia_sip_user_status_t status, int options_res, const char *phrase);
uint32_t sofia_reg_reg_count(sofia_profile_t *profile, const char *user, const char *host);
char *sofia_media_get_multipart(switch_core_session_t *session, const char *prefix, const char *sdp, char **mp_type);
int sofia_glue_tech_simplify(private_object_t *tech_pvt);