sgsn: Add SGSN_ERROR_CAUSE_NONE and use it instead of 0
Currently an error_cause of 0 is being used to indicate normal operation. Albeit this is not a defined GMM cause, the value is not explicitly reserved. This commit adds the macro SGSN_ERROR_CAUSE_NONE and uses it for initialisation (instead of relying on talloc_zero) and comparisons. The value is set to -1 to be on the safe side. The VTY code is updated to set the error_cause when using the 'update-subscriber imsi IMSI update-location-result CAUSE' command. Sponsored-by: On-Waves ehf
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2585620857
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d6267d12d8
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@ -288,6 +288,8 @@ struct sgsn_subscriber_data {
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enum sgsn_subscriber_proc blocked_by;
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};
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#define SGSN_ERROR_CAUSE_NONE (-1)
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#define LOGGSUBSCRP(level, subscr, fmt, args...) \
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LOGP(DGPRS, level, "SUBSCR(%s) " fmt, \
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(subscr) ? (subscr)->imsi : "---", \
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@ -654,7 +654,7 @@ void gsm0408_gprs_access_granted(struct sgsn_mm_ctx *ctx)
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void gsm0408_gprs_access_denied(struct sgsn_mm_ctx *ctx, int gmm_cause)
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{
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if (gmm_cause == 0)
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if (gmm_cause == SGSN_ERROR_CAUSE_NONE)
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gmm_cause = GMM_CAUSE_GPRS_NOTALLOWED;
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switch (ctx->mm_state) {
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@ -690,7 +690,7 @@ void gsm0408_gprs_access_denied(struct sgsn_mm_ctx *ctx, int gmm_cause)
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void gsm0408_gprs_access_cancelled(struct sgsn_mm_ctx *ctx, int gmm_cause)
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{
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if (gmm_cause != 0) {
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if (gmm_cause != SGSN_ERROR_CAUSE_NONE) {
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LOGMMCTXP(LOGL_INFO, ctx,
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"Cancelled with cause '%s' (%d), deleting context\n",
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get_value_string(gsm48_gmm_cause_names, gmm_cause),
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@ -167,6 +167,8 @@ static struct sgsn_subscriber_data *sgsn_subscriber_data_alloc(void *ctx)
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sdata = talloc_zero(ctx, struct sgsn_subscriber_data);
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sdata->error_cause = SGSN_ERROR_CAUSE_NONE;
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for (idx = 0; idx < ARRAY_SIZE(sdata->auth_triplets); idx++)
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sdata->auth_triplets[idx].key_seq = GSM_KEY_SEQ_INVAL;
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@ -292,7 +294,7 @@ static int gprs_subscr_handle_gsup_auth_res(struct gsm_subscriber *subscr,
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}
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sdata->auth_triplets_updated = 1;
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sdata->error_cause = 0;
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sdata->error_cause = SGSN_ERROR_CAUSE_NONE;
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gprs_subscr_update_auth_info(subscr);
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@ -322,7 +324,7 @@ static int gprs_subscr_handle_gsup_upd_loc_res(struct gsm_subscriber *subscr,
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}
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subscr->authorized = 1;
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subscr->sgsn_data->error_cause = 0;
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subscr->sgsn_data->error_cause = SGSN_ERROR_CAUSE_NONE;
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subscr->flags |= GPRS_SUBSCRIBER_ENABLE_PURGE;
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@ -451,7 +453,7 @@ static int gprs_subscr_handle_gsup_purge_res(struct gsm_subscriber *subscr,
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LOGGSUBSCRP(LOGL_INFO, subscr, "Completing purge MS\n");
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/* Force silent cancellation */
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subscr->sgsn_data->error_cause = 0;
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subscr->sgsn_data->error_cause = SGSN_ERROR_CAUSE_NONE;
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gprs_subscr_put_and_cancel(subscr_get(subscr));
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return 0;
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@ -500,7 +502,7 @@ static int gprs_subscr_handle_loc_cancel_req(struct gsm_subscriber *subscr,
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gsup_reply.message_type = GPRS_GSUP_MSGT_LOCATION_CANCEL_RESULT;
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gprs_subscr_tx_gsup_message(subscr, &gsup_reply);
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subscr->sgsn_data->error_cause = 0;
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subscr->sgsn_data->error_cause = SGSN_ERROR_CAUSE_NONE;
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gprs_subscr_put_and_cancel(subscr_get(subscr));
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return 0;
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@ -257,7 +257,9 @@ void sgsn_auth_update(struct sgsn_mm_ctx *mmctx)
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gsm0408_gprs_access_granted(mmctx);
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break;
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case SGSN_AUTH_REJECTED:
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gmm_cause = subscr ? subscr->sgsn_data->error_cause : 0;
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gmm_cause =
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subscr ? subscr->sgsn_data->error_cause :
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SGSN_ERROR_CAUSE_NONE;
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if (subscr && (subscr->flags & GPRS_SUBSCRIBER_CANCELLED) != 0)
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gsm0408_gprs_access_cancelled(mmctx, gmm_cause);
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@ -644,15 +644,29 @@ DEFUN(update_subscr_update_location_result, update_subscr_update_location_result
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struct gsm_subscriber *subscr;
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const struct value_string cause_mapping[] = {
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{ GMM_CAUSE_NET_FAIL, "system-failure" },
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{ GMM_CAUSE_INV_MAND_INFO, "data-missing" },
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{ GMM_CAUSE_PROTO_ERR_UNSPEC, "unexpected-data-value" },
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{ GMM_CAUSE_IMSI_UNKNOWN, "unknown-subscriber" },
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{ GMM_CAUSE_GPRS_NOTALLOWED, "roaming-not-allowed" },
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{ 0, NULL }
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};
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subscr = gprs_subscr_get_by_imsi(imsi);
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if (!subscr) {
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vty_out(vty, "%% unable to get subscriber record for %s\n", imsi);
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return CMD_WARNING;
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}
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if (strcmp(ret_code_str, "ok") == 0)
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if (strcmp(ret_code_str, "ok") == 0) {
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subscr->sgsn_data->error_cause = SGSN_ERROR_CAUSE_NONE;
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subscr->authorized = 1;
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else
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} else {
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subscr->sgsn_data->error_cause =
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get_string_value(cause_mapping, ret_code_str);
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subscr->authorized = 0;
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}
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gprs_subscr_update(subscr);
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