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Holger Freyther holger at freyther.de> On 22 Apr 2016, at 14:41, Sergey Kostanbaev <sergey.kostanbaev at gmail.com> wrote: > > + case GSM0480_MTYPE_FACILITY: > + rc &= parse_ss_facility(&hdr->data[0], len - sizeof(*hdr), req); > + break; > default: > LOGP(0, LOGL_DEBUG, "Unknown GSM 04.80 message-type field 0x%02x\n", > hdr->msg_type); > @@ -284,6 +288,18 @@ static int parse_ss(const struct gsm48_hdr *hdr, uint16_t len, struct ss_request > return rc; > } > > +static int parse_ss_facility(const uint8_t *ss_facility, uint16_t len, > + struct ss_request *req) > +{ > + uint8_t facility_length; > + > + facility_length = ss_facility[0]; > + if (len - 1 < facility_length) > + return 0; > + > + return parse_facility_ie(ss_facility + 1, facility_length, req); > +} > + > static int parse_ss_info_elements(const uint8_t *ss_ie, uint16_t len, > struct ss_request *req) same as with the previous commit. There is no guarantee that original_len - sizeof(*hdr) > 1 (as that was removed). So len - 1 can be UINT16_MAX here?