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[gsm0408] Move encryption message creation to gsm_04_08_utils.c
Be able to use the cipher mode command message from the MSC code.
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parent
66e0ba0b11
commit
3d76e88ae1
2 changed files with 25 additions and 24 deletions
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@ -1644,30 +1644,6 @@ static int gsm0408_rcv_rr(struct msgb *msg)
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return rc;
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}
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/* Chapter 9.1.9: Ciphering Mode Command */
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int gsm48_send_rr_ciph_mode(struct gsm_lchan *lchan)
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{
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struct msgb *msg = gsm48_msgb_alloc();
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struct gsm48_hdr *gh;
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u_int8_t ciph_mod_set;
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msg->lchan = lchan;
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DEBUGP(DRR, "TX CIPHERING MODE CMD\n");
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if (lchan->encr.alg_id <= RSL_ENC_ALG_A5(0))
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ciph_mod_set = 0;
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else
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ciph_mod_set = (lchan->encr.alg_id-2)<<1 | 1;
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gh = (struct gsm48_hdr *) msgb_put(msg, sizeof(*gh) + 1);
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gh->proto_discr = GSM48_PDISC_RR;
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gh->msg_type = GSM48_MT_RR_CIPH_M_CMD;
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gh->data[0] = 0x10 | (ciph_mod_set & 0xf);
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return rsl_encryption_cmd(msg);
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}
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int gsm48_send_rr_app_info(struct gsm_lchan *lchan, u_int8_t apdu_id,
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u_int8_t apdu_len, u_int8_t *apdu)
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{
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@ -457,3 +457,28 @@ int gsm48_handle_paging_resp(struct msgb *msg, struct gsm_subscriber *subscr)
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paging_request_stop(msg->trx->bts, subscr, msg->lchan);
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return 0;
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}
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/* Chapter 9.1.9: Ciphering Mode Command */
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int gsm48_send_rr_ciph_mode(struct gsm_lchan *lchan)
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{
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struct msgb *msg = gsm48_msgb_alloc();
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struct gsm48_hdr *gh;
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u_int8_t ciph_mod_set;
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msg->lchan = lchan;
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DEBUGP(DRR, "TX CIPHERING MODE CMD\n");
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if (lchan->encr.alg_id <= RSL_ENC_ALG_A5(0))
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ciph_mod_set = 0;
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else
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ciph_mod_set = (lchan->encr.alg_id-2)<<1 | 1;
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gh = (struct gsm48_hdr *) msgb_put(msg, sizeof(*gh) + 1);
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gh->proto_discr = GSM48_PDISC_RR;
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gh->msg_type = GSM48_MT_RR_CIPH_M_CMD;
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gh->data[0] = 0x10 | (ciph_mod_set & 0xf);
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return rsl_encryption_cmd(msg);
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}
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