diff options
Diffstat (limited to 'src/mm-broadband-modem.c')
| -rw-r--r-- | src/mm-broadband-modem.c | 128 |
1 files changed, 128 insertions, 0 deletions
diff --git a/src/mm-broadband-modem.c b/src/mm-broadband-modem.c index c97afc13..f82122b1 100644 --- a/src/mm-broadband-modem.c +++ b/src/mm-broadband-modem.c @@ -3357,6 +3357,132 @@ modem_power_up (MMIfaceModem *self, } /*****************************************************************************/ +/* Reprobing the modem if the SIM changed across a power-off or power-down */ + +typedef struct { + MMBaseSim *sim; + guint retries; +} SimSwapContext; + +static gboolean load_sim_identifier (GTask *task); + +static void +sim_swap_context_free (SimSwapContext *ctx) +{ + g_clear_object (&ctx->sim); + g_slice_free (SimSwapContext, ctx); +} + +static gboolean +modem_check_for_sim_swap_finish (MMIfaceModem *self, + GAsyncResult *res, + GError **error) +{ + return g_task_propagate_boolean (G_TASK (res), error); +} + +static void +load_sim_identifier_ready (MMBaseSim *sim, + GAsyncResult *res, + GTask *task) +{ + MMBroadbandModem *self; + SimSwapContext *ctx; + const gchar *cached_simid; + gchar *current_simid; + GError *error = NULL; + + self = MM_BROADBAND_MODEM (g_task_get_source_object (task)); + ctx = g_task_get_task_data (task); + cached_simid = mm_gdbus_sim_get_sim_identifier (MM_GDBUS_SIM (sim)); + current_simid = MM_BASE_SIM_GET_CLASS (sim)->load_sim_identifier_finish (sim, res, &error); + + if (error) { + if (g_error_matches (error, MM_CORE_ERROR, MM_CORE_ERROR_UNSUPPORTED)) { + g_task_return_error (task, error); + goto out; + } + + if (ctx->retries > 0) { + mm_warn ("could not load SIM identifier: %s (%d retries left)", + error->message, ctx->retries); + --ctx->retries; + g_clear_error (&error); + g_timeout_add_seconds (1, (GSourceFunc) load_sim_identifier, task); + return; + } + + mm_warn ("could not load SIM identifier: %s", error->message); + g_task_return_error (task, error); + goto out; + } + + if (g_strcmp0 (current_simid, cached_simid) != 0) { + mm_info ("sim identifier has changed: possible SIM swap during power down/low"); + mm_broadband_modem_update_sim_hot_swap_detected (self); + } + + g_task_return_boolean (task, TRUE); + +out: + g_free (current_simid); + g_object_unref (task); +} + +static gboolean +load_sim_identifier (GTask *task) +{ + SimSwapContext *ctx = g_task_get_task_data (task); + + MM_BASE_SIM_GET_CLASS (ctx->sim)->load_sim_identifier ( + ctx->sim, + (GAsyncReadyCallback)load_sim_identifier_ready, + task); + + return G_SOURCE_REMOVE; +} + +static void +modem_check_for_sim_swap (MMIfaceModem *self, + GAsyncReadyCallback callback, + gpointer user_data) +{ + GTask *task; + SimSwapContext *ctx; + + mm_dbg ("Checking if SIM was swapped..."); + + task = g_task_new (self, NULL, callback, user_data); + ctx = g_slice_new0 (SimSwapContext); + ctx->retries = 3; + g_task_set_task_data (task, ctx, (GDestroyNotify)sim_swap_context_free); + + g_object_get (self, + MM_IFACE_MODEM_SIM, &ctx->sim, + NULL); + if (!ctx->sim) { + g_task_return_new_error (task, + MM_CORE_ERROR, + MM_CORE_ERROR_FAILED, + "could not acquire sim object"); + g_object_unref (task); + return; + } + + if (!MM_BASE_SIM_GET_CLASS (ctx->sim)->load_sim_identifier || + !MM_BASE_SIM_GET_CLASS (ctx->sim)->load_sim_identifier_finish) { + g_task_return_new_error (task, + MM_CORE_ERROR, + MM_CORE_ERROR_FAILED, + "sim identifier could not be loaded"); + g_object_unref (task); + return; + } + + load_sim_identifier (task); +} + +/*****************************************************************************/ /* Sending a command to the modem (Modem interface) */ static const gchar * @@ -10767,6 +10893,8 @@ iface_modem_init (MMIfaceModem *iface) /* Enabling steps */ iface->modem_power_up = modem_power_up; iface->modem_power_up_finish = modem_power_up_finish; + iface->check_for_sim_swap = modem_check_for_sim_swap; + iface->check_for_sim_swap_finish = modem_check_for_sim_swap_finish; iface->setup_flow_control = modem_setup_flow_control; iface->setup_flow_control_finish = modem_setup_flow_control_finish; iface->load_supported_charsets = modem_load_supported_charsets; |