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April 2020

17 participants
32 discussions

OpenMSC: validity_minutes not set when sms is from SMPP + SMS not added in pending list.
by Denis Artru 07 Apr '20

07 Apr '20

Hello all, 1) When an SMS is received from SMPP, the validity_minutes is not set (value 0). The consequence is that email is deleted from database too early in case of failure. In file: src/libmsc/smpp_openbsc.c function submit_to_sms translate convert from submit_sm_t to gsm_sms. But some field of gsm_sms are not filled, in particularly validity_minutes. I think that validity_minutes must be computed from submit_sm_t.schedule_delivery_time or submit_sm_t.validity_period. Sorry I don’t know exactly content of these values. 2) In file src/libmsc/sms_queue.c function sub_ready_for_sm, before sending SMS using the function gsm411_send_sms, the SMS is not place in pending list. Like it is done in functions sms_submit_pending and sms_send_next. The consequence is that when handset do a Location Updating Request, only one SMS is send if they are many SMS for this subscribers. Because in function sms_sms_cb call of pending = sms_find_pending(network->sms_queue, sig_sms->sms->id); will always return 0. I try the following fix and was working but I don’t know if it possible that an SMS was already in the list? + struct gsm_sms_queue *smsq = net->sms_queue; + struct gsm_sms_pending *pendingSms = sms_pending_from(smsq, sms); + if (!pendingSms) { + LOGP(DLSMS, LOGL_ERROR, + "Failed to create pending SMS entry.\n"); + sms_free(sms); + return 0; + } + llist_add_tail(&pendingSms->entry, &smsq->pending_sms); gsm411_send_sms(net, vsub, sms); return 0; } Thanks you, Denis

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GSUP protocol
by Reza Hosseini 04 Apr '20

04 Apr '20

Dear Osmocom developpers, I already installed osmocomnitb and now i am trying to Show the core Network vulnerablites in Wireshark. In order to use existing Osmocom libraries for GSUP protocol processing and USSD coding / decoding, I have to use the file "osmo-hlr / src / osmo-euse-demo.c" in my osmocom directory, the " http: // git "contains. osmocom.org/osmo-hlr/tree/src/osmo-euse-demo.c "Pool. But i don’t find the following libarries to patch it. #include <string.h> #include <stdio.h> #include <errno.h> #include <signal.h> #include <osmocom/core/msgb.h> #include <osmocom/core/select.h> #include <osmocom/core/application.h> #include <osmocom/core/utils.h> #include <osmocom/core/logging.h> #include <osmocom/gsm/gsup.h> #include <osmocom/gsm/gsm0480.h> #include <osmocom/gsm/protocol/gsm_04_80.h> #include <osmocom/gsupclient/gsup_client.h> #include <osmocom/hlr/logging.h> How can i have Access to the .exe (already maked) of this library. Kind regads, Reza

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