mm-shared-qmi: load EID during SIM slot loading

SIMs can be created with an EID fetched during load_sim_slots
while initializing the modem, if present.

Since load_eid would be implemented with the same mechanism
we avoid using it here (if Get Slot Status fails once, it
probably doesn't make a lot of sense to try it again).

src/mm-base-sim.c

@@ -1472,6 +1472,7 @@ mm_base_sim_new_initialized (MMBaseModem *modem,
                              gboolean     active,
                              const gchar *sim_identifier,
                              const gchar *imsi,
+                             const gchar *eid,
                              const gchar *operator_identifier,
                              const gchar *operator_name,
                              const GStrv  emergency_numbers)
@@ -1484,6 +1485,7 @@ mm_base_sim_new_initialized (MMBaseModem *modem,
                                      "active",                active,
                                      "sim-identifier",        sim_identifier,
                                      "imsi",                  imsi,
+                                     "eid",                   eid,
                                      "operator-identifier",   operator_identifier,
                                      "operator-name",         operator_name,
                                      "emergency-numbers",     emergency_numbers,

src/mm-base-sim.h

@@ -175,6 +175,7 @@ MMBaseSim   *mm_base_sim_new_initialized            (MMBaseModem *modem,
                                                      gboolean     active,
                                                      const gchar *sim_identifier,
                                                      const gchar *imsi,
+                                                     const gchar *eid,
                                                      const gchar *operator_identifier,
                                                      const gchar *operator_name,
                                                      const GStrv  emergency_numbers);

src/mm-modem-helpers-qmi.c

@@ -2026,3 +2026,17 @@ mm_qmi_uim_get_card_status_output_parse (gpointer                           log_
     *o_lock = lock;
     return TRUE;
 }
+
+/*************************************************************************/
+/* EID parsing */
+
+#define EID_BYTE_LENGTH 16
+
+gchar *
+mm_qmi_uim_decode_eid (const gchar *eid, gsize eid_len)
+{
+    if (eid_len != EID_BYTE_LENGTH)
+        return NULL;
+
+    return mm_bcd_to_string ((const guint8 *) eid, eid_len, FALSE /* low_nybble_first */);
+}

src/mm-modem-helpers-qmi.h

@@ -168,4 +168,8 @@ gboolean mm_qmi_uim_get_card_status_output_parse (gpointer
                                                   guint                             *o_puk2_retries,
                                                   GError                           **error);
 
+/*****************************************************************************/
+/* UIM Get Slot Status parsing */
+gchar *mm_qmi_uim_decode_eid (const gchar *eid, gsize eid_len);
+
 #endif  /* MM_MODEM_HELPERS_QMI_H */

src/mm-shared-qmi.c

@@ -3384,6 +3384,8 @@ uim_get_slot_status_ready (QmiClientUim *client,
     MMIfaceModem              *self;
     GError                    *error = NULL;
     GArray                    *physical_slots = NULL;
+    GArray                    *ext_information = NULL;
+    GArray                    *slot_eids = NULL;
     guint                      i;
 
     self = g_task_get_source_object (task);
@@ -3398,15 +3400,30 @@ uim_get_slot_status_ready (QmiClientUim *client,
         return;
     }
 
+    /* It's fine if we don't have EID information, but it should be well-formed if present. If it's malformed,
+     * there is probably a modem firmware bug. */
+    if (qmi_message_uim_get_slot_status_output_get_physical_slot_information (output, &ext_information, NULL) &&
+        qmi_message_uim_get_slot_status_output_get_slot_eid_information (output, &slot_eids, NULL) &&
+        (ext_information->len != physical_slots->len || slot_eids->len != physical_slots->len)) {
+        g_task_return_new_error (task,
+                                 MM_CORE_ERROR,
+                                 MM_CORE_ERROR_FAILED,
+                                 "UIM Get Slot Status returned malformed response");
+        g_object_unref (task);
+        return;
+    }
+
     ctx->sim_slots = g_ptr_array_new_full (physical_slots->len, (GDestroyNotify) sim_slot_free);
 
     for (i = 0; i < physical_slots->len; i++) {
-        QmiPhysicalSlotStatusSlot *slot_status;
+        QmiPhysicalSlotStatusSlot      *slot_status;
-        MMBaseSim                 *sim;
+        QmiPhysicalSlotInformationSlot *slot_info;
-        g_autofree gchar          *raw_iccid = NULL;
+        MMBaseSim                      *sim;
-        g_autofree gchar          *iccid = NULL;
+        g_autofree gchar               *raw_iccid = NULL;
-        g_autoptr(GError)          inner_error = NULL;
+        g_autofree gchar               *iccid = NULL;
-        gboolean                   sim_active = FALSE;
+        g_autofree gchar               *eid = NULL;
+        g_autoptr(GError)               inner_error = NULL;
+        gboolean                        sim_active = FALSE;
 
         /* Store active slot info */
         slot_status = &g_array_index (physical_slots, QmiPhysicalSlotStatusSlot, i);
@@ -3438,12 +3455,26 @@ uim_get_slot_status_ready (QmiClientUim *client,
             continue;
         }
 
+        if (ext_information && slot_eids) {
+            slot_info = &g_array_index (ext_information, QmiPhysicalSlotInformationSlot, i);
+            if (slot_info->is_euicc) {
+                GArray *slot_eid;
+
+                slot_eid = g_array_index (slot_eids, GArray *, i);
+                if (slot_eid->len)
+                    eid = mm_qmi_uim_decode_eid (slot_eid->data, slot_eid->len);
+                if (!eid)
+                    mm_obj_dbg (self, "SIM in slot %d is marked as eUICC, but has malformed EID", i + 1);
+            }
+        }
+
         sim = mm_sim_qmi_new_initialized (MM_BASE_MODEM (self),
                                           TRUE, /* consider DMS UIM deprecated if we're creating SIM slots */
                                           i + 1, /* slot number is the array index starting at 1 */
                                           sim_active,
                                           iccid,
                                           NULL,  /* imsi unknown */
+                                          eid,   /* may be NULL, which is fine */
                                           NULL,  /* operator id unknown */
                                           NULL,  /* operator name unknown */
                                           NULL); /* emergency numbers unknown */

src/mm-sim-qmi.c

@@ -1454,6 +1454,7 @@ mm_sim_qmi_new_initialized (MMBaseModem *modem,
                             gboolean     active,
                             const gchar *sim_identifier,
                             const gchar *imsi,
+                            const gchar *eid,
                             const gchar *operator_identifier,
                             const gchar *operator_name,
                             const GStrv  emergency_numbers)
@@ -1467,6 +1468,7 @@ mm_sim_qmi_new_initialized (MMBaseModem *modem,
                                      "active",                      active,
                                      "sim-identifier",              sim_identifier,
                                      "imsi",                        imsi,
+                                     "eid",                         eid,
                                      "operator-identifier",         operator_identifier,
                                      "operator-name",               operator_name,
                                      "emergency-numbers",           emergency_numbers,

src/mm-sim-qmi.h

@@ -60,6 +60,7 @@ MMBaseSim *mm_sim_qmi_new_initialized (MMBaseModem *modem,
                                        gboolean     active,
                                        const gchar *sim_identifier,
                                        const gchar *imsi,
+                                       const gchar *eid,
                                        const gchar *operator_identifier,
                                        const gchar *operator_name,
                                        const GStrv  emergency_numbers);