[layer23] Detach SIM, if reading fails

This way the mobility management and cell selection process continues as
if no SIM has been inserted.

diff --git a/src/host/layer23/src/mobile/subscriber.c b/src/host/layer23/src/mobile/subscriber.c
index 9a2085a..544d53f 100644 (file)
--- a/src/host/layer23/src/mobile/subscriber.c
+++ b/src/host/layer23/src/mobile/subscriber.c
@@ -567,6 +567,7 @@ static void subscr_sim_query_cb(struct osmocom_ms *ms, struct msgb *msg)
        uint16_t payload_len = msg->len - sizeof(*sh);
        int rc;
        struct subscr_sim_file *sf = &subscr_sim_files[subscr->sim_file_index];
+       struct msgb *nmsg;
 
        /* error handling */
        if (sh->job_type == SIM_JOB_ERROR) {
@@ -612,6 +613,13 @@ static void subscr_sim_query_cb(struct osmocom_ms *ms, struct msgb *msg)
 
                        vty_notify(ms, NULL);
                        vty_notify(ms, "SIM failed, replace SIM!\n");
+
+                       /* detach simcard */
+                       subscr->sim_valid = 0;
+                       nmsg = gsm48_mmr_msgb_alloc(GSM48_MMR_NREG_REQ);
+                       if (!nmsg)
+                               return;
+                       gsm48_mmr_downmsg(ms, nmsg);
                }
                msgb_free(msg);