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osmo-pcu
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gprs_bssgp_pcu.cpp: check return code of gsm48_mi_to_string() 

Change-Id: Id1ad279ce9bef38eb3d11ac62337276207e8d8bd
This commit is contained in:
Vadim Yanitskiy 2019-07-24 16:44:13 +07:00 committed by fixeria
parent aad87b66e8
commit 6170ac041f
1 changed files with 17 additions and 3 deletions
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20
src/gprs_bssgp_pcu.cpp
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@ -28,6 +28,7 @@
#include <pdch.h>
extern "C" {
#include <osmocom/gsm/protocol/gsm_23_003.h>
#include <osmocom/core/utils.h>
#include "coding_scheme.h"
}
@ -93,6 +94,7 @@ static int gprs_bssgp_pcu_rx_dl_ud(struct msgb *msg, struct tlv_parsed *tp)
char imsi[16] = "000";
uint8_t ms_class = 0;
uint8_t egprs_ms_class = 0;
int rc;
#if 0
MS_Radio_Access_capability_t rac;
#endif
@ -120,8 +122,13 @@ static int gprs_bssgp_pcu_rx_dl_ud(struct msgb *msg, struct tlv_parsed *tp)
* will listen to all paging blocks. */
if (TLVP_PRESENT(tp, BSSGP_IE_IMSI))
{
gsm48_mi_to_string(imsi, sizeof(imsi), TLVP_VAL(tp, BSSGP_IE_IMSI),
TLVP_LEN(tp, BSSGP_IE_IMSI));
/* gsm48_mi_to_string() returns number of bytes written, including '\0' */
rc = gsm48_mi_to_string(imsi, sizeof(imsi), TLVP_VAL(tp, BSSGP_IE_IMSI),
TLVP_LEN(tp, BSSGP_IE_IMSI));
if (rc != GSM23003_IMSI_MAX_DIGITS + 1) {
LOGP(DBSSGP, LOGL_NOTICE, "Failed to parse IMSI IE (rc=%d)\n", rc);
return bssgp_tx_status(BSSGP_CAUSE_COND_IE_ERR, NULL, msg);
}
}
#if 0 /* Do not rely on this IE. TODO: make this configurable */
@ -172,6 +179,7 @@ int gprs_bssgp_pcu_rx_paging_ps(struct msgb *msg, struct tlv_parsed *tp)
char imsi[16];
uint8_t *ptmsi = (uint8_t *) TLVP_VAL(tp, BSSGP_IE_TMSI);
uint16_t ptmsi_len = TLVP_LEN(tp, BSSGP_IE_TMSI);
int rc;
LOGP(DBSSGP, LOGL_NOTICE, " P-TMSI = ");
for (int i = 0; i < ptmsi_len; i++)
@ -185,7 +193,13 @@ int gprs_bssgp_pcu_rx_paging_ps(struct msgb *msg, struct tlv_parsed *tp)
return -EINVAL;
}
gsm48_mi_to_string(imsi, sizeof(imsi), TLVP_VAL(tp, BSSGP_IE_IMSI), TLVP_LEN(tp, BSSGP_IE_IMSI));
/* gsm48_mi_to_string() returns number of bytes written, including '\0' */
rc = gsm48_mi_to_string(imsi, sizeof(imsi), TLVP_VAL(tp, BSSGP_IE_IMSI),
TLVP_LEN(tp, BSSGP_IE_IMSI));
if (rc != GSM23003_IMSI_MAX_DIGITS + 1) {
LOGP(DBSSGP, LOGL_NOTICE, "Failed to parse IMSI IE (rc=%d)\n", rc);
return bssgp_tx_status(BSSGP_CAUSE_COND_IE_ERR, NULL, msg);
}
return gprs_rlcmac_paging_request(ptmsi, ptmsi_len, imsi);
}