diff options
Diffstat (limited to 'src/mm-iface-modem-voice.c')
| -rw-r--r-- | src/mm-iface-modem-voice.c | 103 |
1 files changed, 103 insertions, 0 deletions
diff --git a/src/mm-iface-modem-voice.c b/src/mm-iface-modem-voice.c index 32f6a4d1..ff685aa5 100644 --- a/src/mm-iface-modem-voice.c +++ b/src/mm-iface-modem-voice.c @@ -39,6 +39,109 @@ mm_iface_modem_voice_bind_simple_status (MMIfaceModemVoice *self, /*****************************************************************************/ +gboolean +mm_iface_modem_voice_authorize_outgoing_call (MMIfaceModemVoice *self, + MMBaseCall *call, + GError **error) +{ + MmGdbusModemVoice *skeleton = NULL; + MMBaseSim *sim = NULL; + gboolean emergency_only = FALSE; + gboolean call_allowed = FALSE; + GError *inner_error = NULL; + guint i; + const gchar *number; + + static const gchar *always_valid_emergency_numbers[] = { "112", "911" }; + static const gchar *no_sim_valid_emergency_numbers[] = { "000", "08", "110", "999", "118", "119" }; + + g_assert (mm_base_call_get_direction (call) == MM_CALL_DIRECTION_OUTGOING); + number = mm_base_call_get_number (call); + g_assert (number); + + g_object_get (self, + MM_IFACE_MODEM_VOICE_DBUS_SKELETON, &skeleton, + NULL); + + if (!skeleton) { + g_set_error (&inner_error, MM_CORE_ERROR, MM_CORE_ERROR_FAILED, + "voice operations unsupported"); + goto out; + } + + g_object_get (skeleton, + "emergency-only", &emergency_only, + NULL); + + /* Identification of emergency numbers. 3GPP TS 22.101 + * + * a) 112 and 911 shall always be available. + * b) Any emergency call number stored on a SIM/USIM when the SIM/USIM is + * present. + * c) 000, 08, 110, 999, 118 and 119 when a SIM/USIM is not present. + * d) Additional emergency call numbers that may have been downloaded by + * the serving network when the SIM/USIM is present. + * + * In ModemManager we're not flagging any call as being "emergency" or + * "normal", but we can right away limit non-emergency calls if we're in + * "emergency-only" mode. + */ + + /* If we're not in emergency mode, the call (emergency or normal) is always allowed */ + if (!emergency_only) { + mm_dbg ("voice call to %s allowed", number); + call_allowed = TRUE; + goto out; + } + + for (i = 0; i < G_N_ELEMENTS (always_valid_emergency_numbers); i++) { + if (g_strcmp0 (number, always_valid_emergency_numbers[i]) == 0) { + mm_dbg ("voice call to %s allowed: emergency call number always valid", number); + call_allowed = TRUE; + goto out; + } + } + + /* Check if we have a SIM */ + g_object_get (self, + MM_IFACE_MODEM_SIM, &sim, + NULL); + if (!sim) { + /* If no SIM available, some additional numbers may be valid emergency numbers */ + for (i = 0; i < G_N_ELEMENTS (no_sim_valid_emergency_numbers); i++) { + if (g_strcmp0 (number, no_sim_valid_emergency_numbers[i]) == 0) { + mm_dbg ("voice call to %s allowed: emergency call number valid when no SIM", number); + call_allowed = TRUE; + goto out; + } + } + + mm_dbg ("voice call to %s NOT allowed: not a valid emergency call number when no SIM", number); + goto out; + } + + /* Check if the number is programmed in EF_ECC */ + if (mm_base_sim_is_emergency_number (sim, number)) { + mm_dbg ("voice call to %s allowed: emergency call number programmed in the SIM", number); + call_allowed = TRUE; + } else + mm_dbg ("voice call to %s NOT allowed: not a valid emergency call number programmed in the SIM", number); + + out: + + if (inner_error) + g_propagate_error (error, inner_error); + else if (!call_allowed) + g_set_error (error, MM_CORE_ERROR, MM_CORE_ERROR_UNAUTHORIZED, + "only emergency calls allowed"); + + g_clear_object (&skeleton); + g_clear_object (&sim); + return call_allowed; +} + +/*****************************************************************************/ + /* new calls will inherit audio settings if the modem is already in-call state */ static void update_audio_settings_in_call (MMIfaceModemVoice *self, MMBaseCall *call); |