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libgtp: Add missing mandatory IEs in GTP Error Indication 

Change-Id: Iadd1fe3de7c476576a4409f22f5e84e9eade6b6e
This commit is contained in:
Harald Welte 2017-08-12 22:43:21 +02:00
parent b10ee08c2f
commit 54d082e5e8
1 changed files with 11 additions and 1 deletions
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12
gtp/gtp.c
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@ -2555,7 +2555,7 @@ int gtp_delete_pdp_conf(struct gsn_t *gsn, int version,
return 0;
}
/* Send Error Indication (response to a GPDU message */
/* Send Error Indication (response to a GPDU message) - 3GPP TS 29.060 7.3.7 */
int gtp_error_ind_resp(struct gsn_t *gsn, int version,
struct sockaddr_in *peer, int fd,
void *pack, unsigned len)
@ -2563,6 +2563,16 @@ int gtp_error_ind_resp(struct gsn_t *gsn, int version,
union gtp_packet packet;
unsigned int length = get_default_gtp(version, GTP_ERROR, &packet);
if (version == 1) {
/* Mandatory 7.7.13 TEI Data I */
gtpie_tv4(&packet, &length, GTP_MAX, GTPIE_TEI_DI,
ntoh32(((union gtp_packet *)pack)->gtp1l.h.tei));
/* Mandatory 7.7.32 GSN Address */
gtpie_tlv(&packet, &length, GTP_MAX, GTPIE_GSN_ADDR,
sizeof(gsn->gsnu), &gsn->gsnu);
}
return gtp_resp(version, gsn, NULL, &packet, length, peer, fd,
get_seq(pack), get_tid(pack));
}