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-rw-r--r--src/gsm_04_11.c500
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diff --git a/src/gsm_04_11.c b/src/gsm_04_11.c
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--- a/src/gsm_04_11.c
+++ /dev/null
@@ -1,500 +0,0 @@
-/* Point-to-Point (PP) Short Message Service (SMS)
- * Support on Mobile Radio Interface
- * 3GPP TS 04.11 version 7.1.0 Release 1998 / ETSI TS 100 942 V7.1.0 */
-
-/* (C) 2008 by Daniel Willmann <daniel@totalueberwachung.de>
- * (C) 2009 by Harald Welte <laforge@gnumonks.org>
- *
- * All Rights Reserved
- *
- * This program is free software; you can redistribute it and/or modify
- * it under the terms of the GNU General Public License as published by
- * the Free Software Foundation; either version 2 of the License, or
- * (at your option) any later version.
- *
- * This program is distributed in the hope that it will be useful,
- * but WITHOUT ANY WARRANTY; without even the implied warranty of
- * MERCHANTABILITY or FITNESS FOR A PARTICULAR PURPOSE. See the
- * GNU General Public License for more details.
- *
- * You should have received a copy of the GNU General Public License along
- * with this program; if not, write to the Free Software Foundation, Inc.,
- * 51 Franklin Street, Fifth Floor, Boston, MA 02110-1301 USA.
- *
- */
-
-
-#include <stdio.h>
-#include <stdlib.h>
-#include <string.h>
-#include <errno.h>
-#include <netinet/in.h>
-
-#include <openbsc/msgb.h>
-#include <openbsc/tlv.h>
-#include <openbsc/debug.h>
-#include <openbsc/gsm_data.h>
-#include <openbsc/gsm_subscriber.h>
-#include <openbsc/gsm_04_11.h>
-#include <openbsc/gsm_04_08.h>
-#include <openbsc/gsm_utils.h>
-#include <openbsc/abis_rsl.h>
-#include <openbsc/signal.h>
-#include <openbsc/db.h>
-
-#define GSM411_ALLOC_SIZE 1024
-#define GSM411_ALLOC_HEADROOM 128
-
-struct msgb *gsm411_msgb_alloc(void)
-{
- return msgb_alloc_headroom(GSM411_ALLOC_SIZE, GSM411_ALLOC_HEADROOM);
-}
-
-int gsm0411_sendmsg(struct msgb *msg)
-{
- if (msg->lchan)
- msg->trx = msg->lchan->ts->trx;
-
- msg->l3h = msg->data;
-
- return rsl_data_request(msg, 0);
-}
-
-
-#if 0
-static u_int8_t gsm0411_tpdu_from_sms(u_int8_t *tpdu, struct sms_deliver *sms)
-{
-}
-#endif
-
-static unsigned long gsm340_validity_period(struct sms_submit *sms)
-{
- u_int8_t vp;
- unsigned long minutes;
-
- switch (sms->vpf) {
- case GSM340_TP_VPF_RELATIVE:
- /* Chapter 9.2.3.12.1 */
- vp = *(sms->vp);
- if (vp <= 143)
- minutes = vp + 1 * 5;
- else if (vp <= 167)
- minutes = 12*60 + (vp-143) * 30;
- else if (vp <= 196)
- minutes = vp-166 * 60 * 24;
- else
- minutes = vp-192 * 60 * 24 * 7;
- break;
- case GSM340_TP_VPF_ABSOLUTE:
- /* Chapter 9.2.3.12.2 */
- /* FIXME: like service center time stamp */
- DEBUGP(DSMS, "VPI absolute not implemented yet\n");
- break;
- case GSM340_TP_VPF_ENHANCED:
- /* Chapter 9.2.3.12.3 */
- /* FIXME: implementation */
- DEBUGP(DSMS, "VPI enhanced not implemented yet\n");
- break;
- }
- return minutes;
-}
-
-/* determine coding alphabet dependent on GSM 03.38 Section 4 DCS */
-enum sms_alphabet gsm338_get_sms_alphabet(u_int8_t dcs)
-{
- u_int8_t cgbits = dcs >> 4;
- enum sms_alphabet alpha = DCS_NONE;
-
- if ((cgbits & 0xc) == 0) {
- if (cgbits & 2)
- DEBUGP(DSMS, "Compressed SMS not supported yet\n");
-
- switch (dcs & 3) {
- case 0:
- alpha = DCS_7BIT_DEFAULT;
- break;
- case 1:
- alpha = DCS_8BIT_DATA;
- break;
- case 2:
- alpha = DCS_UCS2;
- break;
- }
- } else if (cgbits == 0xc || cgbits == 0xd)
- alpha = DCS_7BIT_DEFAULT;
- else if (cgbits == 0xe)
- alpha = DCS_UCS2;
- else if (cgbits == 0xf) {
- if (dcs & 4)
- alpha = DCS_8BIT_DATA;
- else
- alpha = DCS_7BIT_DEFAULT;
- }
-
- return alpha;
-}
-
-static int gsm340_rx_sms_submit(struct msgb *msg, struct sms_submit *sms,
- struct gsm_sms *gsms)
-{
- if (db_sms_store(gsms) != 0) {
- DEBUGP(DSMS, "Failed to store SMS in Database\n");
- free(sms);
- free(gsms);
- return -EIO;
- }
- return 0;
-}
-
-/* process an incoming TPDU (called from RP-DATA) */
-static int gsm340_rx_tpdu(struct msgb *msg)
-{
- u_int8_t *smsp = msgb_sms(msg);
- struct sms_submit *sms;
- struct gsm_sms *gsms;
- u_int8_t da_len_bytes;
- u_int8_t address_lv[12]; /* according to 03.40 / 9.1.2.5 */
- int rc = 0;
-
- sms = malloc(sizeof(*sms));
- if (!sms)
- return -ENOMEM;
- memset(sms, 0, sizeof(*sms));
-
- gsms = malloc(sizeof(*gsms));
- if (!gsms) {
- free(sms);
- return -ENOMEM;
- }
- memset(gsms, 0, sizeof(*gsms));
-
- /* invert those fields where 0 means active/present */
- sms->mti = *smsp & 0x03;
- sms->mms = !!(*smsp & 0x04);
- sms->vpf = (*smsp & 0x18) >> 3;
- sms->sri = !!(*smsp & 0x20);
- sms->udhi= !!(*smsp & 0x40);
- sms->rp = !!(*smsp & 0x80);
-
- smsp++;
- sms->msg_ref = *smsp++;
-
- /* length in bytes of the destination address */
- da_len_bytes = 2 + *smsp/2 + *smsp%2;
- if (da_len_bytes > 12) {
- DEBUGP(DSMS, "Destination Address > 12 bytes ?!?\n");
- rc = -EIO;
- goto out;
- }
- memcpy(address_lv, smsp, da_len_bytes);
- /* mangle first byte to reflect length in bytes, not digits */
- address_lv[0] = da_len_bytes;
- /* convert to real number */
- decode_bcd_number(sms->dest_addr, sizeof(sms->dest_addr), address_lv);
-
- smsp += da_len_bytes;
-
- sms->pid = *smsp++;
-
- sms->dcs = *smsp++;
- sms->alphabet = gsm338_get_sms_alphabet(sms->dcs);
-
- switch (sms->vpf) {
- case GSM340_TP_VPF_RELATIVE:
- sms->vp = smsp++;
- break;
- case GSM340_TP_VPF_ABSOLUTE:
- case GSM340_TP_VPF_ENHANCED:
- sms->vp = smsp;
- smsp += 7;
- break;
- default:
- DEBUGP(DSMS, "SMS Validity period not implemented: 0x%02x\n",
- sms->vpf);
- }
- sms->ud_len = *smsp++;
- if (sms->ud_len)
- sms->user_data = smsp;
- else
- sms->user_data = NULL;
-
- if (sms->ud_len) {
- switch (sms->alphabet) {
- case DCS_7BIT_DEFAULT:
- gsm_7bit_decode(sms->decoded, smsp, sms->ud_len);
- break;
- case DCS_8BIT_DATA:
- case DCS_UCS2:
- case DCS_NONE:
- memcpy(sms->decoded, sms->user_data, sms->ud_len);
- break;
- }
- }
-
- DEBUGP(DSMS, "SMS:\nMTI: 0x%02x, VPF: 0x%02x, MR: 0x%02x "
- "PID: 0x%02x, DCS: 0x%02x, DA: %s, UserDataLength: 0x%02x "
- "UserData: \"%s\"\n", sms->mti, sms->vpf, sms->msg_ref,
- sms->pid, sms->dcs, sms->dest_addr, sms->ud_len,
- sms->alphabet == DCS_7BIT_DEFAULT ? sms->decoded : hexdump(sms->user_data, sms->ud_len));
-
- dispatch_signal(SS_SMS, 0, sms);
-
- gsms->sender = msg->lchan->subscr;
- /* FIXME: sender refcount */
-
- /* determine gsms->receiver based on dialled number */
- gsms->receiver = subscr_get_by_extension(sms->dest_addr);
- if (!gsms->receiver) {
- rc = 1; /* cause 1: unknown subscriber */
- goto out;
- }
-
- if (sms->user_data)
- strncpy(gsms->text, sms->decoded, sizeof(gsms->text));
-
- switch (sms->mti) {
- case GSM340_SMS_SUBMIT_MS2SC:
- /* MS is submitting a SMS */
- rc = gsm340_rx_sms_submit(msg, sms, gsms);
- break;
- case GSM340_SMS_COMMAND_MS2SC:
- case GSM340_SMS_DELIVER_REP_MS2SC:
- DEBUGP(DSMS, "Unimplemented MTI 0x%02x\n", sms->mti);
- break;
- default:
- DEBUGP(DSMS, "Undefined MTI 0x%02x\n", sms->mti);
- break;
- }
-
-out:
- free(gsms);
- free(sms);
-
- return rc;
-}
-
-static int gsm411_send_rp_ack(struct gsm_lchan *lchan, u_int8_t trans_id,
- u_int8_t msg_ref)
-{
- struct msgb *msg = gsm411_msgb_alloc();
- struct gsm48_hdr *gh;
- struct gsm411_rp_hdr *rp;
-
- msg->lchan = lchan;
-
- gh = (struct gsm48_hdr *) msgb_put(msg, sizeof(*gh));
- // Outgoing needs the highest bit set
- gh->proto_discr = GSM48_PDISC_SMS | trans_id<<4 | 0x80;
- gh->msg_type = GSM411_MT_CP_DATA;
-
- rp = (struct gsm411_rp_hdr *)msgb_put(msg, sizeof(*rp));
- rp->len = 2;
- rp->msg_type = GSM411_MT_RP_ACK_MT;
- rp->msg_ref = msg_ref;
-
- DEBUGP(DSMS, "TX: SMS RP ACK\n");
-
- return gsm0411_sendmsg(msg);
-}
-
-static int gsm411_send_rp_error(struct gsm_lchan *lchan, u_int8_t trans_id,
- u_int8_t msg_ref, u_int8_t cause)
-{
- struct msgb *msg = gsm411_msgb_alloc();
- struct gsm48_hdr *gh;
- struct gsm411_rp_hdr *rp;
-
- msg->lchan = lchan;
-
- gh = (struct gsm48_hdr *) msgb_put(msg, sizeof(*gh));
- // Outgoing needs the highest bit set
- gh->proto_discr = GSM48_PDISC_SMS | trans_id<<4 | 0x80;
- gh->msg_type = GSM411_MT_CP_DATA;
-
- rp = (struct gsm411_rp_hdr *)msgb_put(msg, sizeof(*rp));
- rp->msg_type = GSM411_MT_RP_ERROR_MT;
- rp->msg_ref = msg_ref;
- msgb_tv_put(msg, 1, cause);
-
- DEBUGP(DSMS, "TX: SMS RP ERROR (cause %02d)\n", cause);
-
- return gsm0411_sendmsg(msg);
-}
-
-/* Receive a 04.11 TPDU inside RP-DATA / user data */
-static int gsm411_rx_rp_ud(struct msgb *msg, struct gsm411_rp_hdr *rph,
- u_int8_t src_len, u_int8_t *src,
- u_int8_t dst_len, u_int8_t *dst,
- u_int8_t tpdu_len, u_int8_t *tpdu)
-{
- struct gsm48_hdr *gh = msgb_l3(msg);
- u_int8_t trans_id = gh->proto_discr >> 4;
- int rc = 0;
-
- if (src_len && src)
- DEBUGP(DSMS, "RP-DATA (MO) with SRC ?!?\n");
-
- if (!dst_len || !dst || !tpdu_len || !tpdu) {
- DEBUGP(DSMS, "RP-DATA (MO) without DST or TPDU ?!?\n");
- return -EIO;
- }
- msg->smsh = tpdu;
-
- DEBUGP(DSMS, "DST(%u,%s)\n", dst_len, hexdump(dst, dst_len));
- //return gsm411_send_rp_error(msg->lchan, trans_id, rph->msg_ref, rc);
-
- rc = gsm340_rx_tpdu(msg);
- if (rc == 0)
- return gsm411_send_rp_ack(msg->lchan, trans_id, rph->msg_ref);
- else if (rc > 0)
- return gsm411_send_rp_error(msg->lchan, trans_id, rph->msg_ref, rc);
- else
- return rc;
-}
-
-/* Receive a 04.11 RP-DATA message in accordance with Section 7.3.1.2 */
-static int gsm411_rx_rp_data(struct msgb *msg, struct gsm411_rp_hdr *rph)
-{
- u_int8_t src_len, dst_len, rpud_len;
- u_int8_t *src = NULL, *dst = NULL , *rp_ud = NULL;
-
- /* in the MO case, this should always be zero length */
- src_len = rph->data[0];
- if (src_len)
- src = &rph->data[1];
-
- dst_len = rph->data[1+src_len];
- if (dst_len)
- dst = &rph->data[1+src_len+1];
-
- rpud_len = rph->data[1+src_len+1+dst_len];
- if (rpud_len)
- rp_ud = &rph->data[1+src_len+1+dst_len+1];
-
- DEBUGP(DSMS, "RX_RP-DATA: src_len=%u, dst_len=%u ud_len=%u\n", src_len, dst_len, rpud_len);
- return gsm411_rx_rp_ud(msg, rph, src_len, src, dst_len, dst,
- rpud_len, rp_ud);
-}
-
-static int gsm411_rx_cp_data(struct msgb *msg, struct gsm48_hdr *gh)
-{
- struct gsm411_rp_hdr *rp_data = (struct gsm411_rp_hdr*)&gh->data;
- u_int8_t msg_type = rp_data->msg_type & 0x07;
- int rc = 0;
-
- switch (msg_type) {
- case GSM411_MT_RP_DATA_MO:
- DEBUGP(DSMS, "SMS RP-DATA (MO)\n");
- rc = gsm411_rx_rp_data(msg, rp_data);
- break;
- case GSM411_MT_RP_ACK_MO:
- /* Acnkowledgement to MT RP_DATA */
- case GSM411_MT_RP_ERROR_MO:
- /* Error in response to MT RP_DATA */
- case GSM411_MT_RP_SMMA_MO:
- /* MS tells us that it has memory for more SMS, we need
- * to check if we have any pending messages for it and then
- * transfer those */
- DEBUGP(DSMS, "Unimplemented RP type 0x%02x\n", msg_type);
- break;
- default:
- DEBUGP(DSMS, "Invalid RP type 0x%02x\n", msg_type);
- break;
- }
-
- return rc;
-}
-
-int gsm0411_rcv_sms(struct msgb *msg)
-{
- struct gsm48_hdr *gh = msgb_l3(msg);
- u_int8_t msg_type = gh->msg_type;
- int rc = 0;
-
- switch(msg_type) {
- case GSM411_MT_CP_DATA:
- DEBUGP(DSMS, "SMS CP-DATA\n");
- rc = gsm411_rx_cp_data(msg, gh);
- break;
- case GSM411_MT_CP_ACK:
- DEBUGP(DSMS, "SMS CP-ACK\n");
- break;
- case GSM411_MT_CP_ERROR:
- DEBUGP(DSMS, "SMS CP-ERROR, cause 0x%02x\n", gh->data[0]);
- break;
- default:
- DEBUGP(DSMS, "Unimplemented CP msg_type: 0x%02x\n", msg_type);
- break;
- }
-
-
- return rc;
-}
-
-/* Test TPDU - 25c3 welcome */
-#if 0
-static u_int8_t tpdu_test[] = {
- 0x04, 0x04, 0x81, 0x32, 0x24, 0x00, 0x00, 0x80, 0x21, 0x92, 0x90, 0x32,
- 0x24, 0x40, 0x4D, 0xB2, 0xDA, 0x70, 0xD6, 0x9A, 0x97, 0xE5, 0xF6, 0xF4,
- 0xB8, 0x0C, 0x0A, 0xBB, 0xDD, 0xEF, 0xBA, 0x7B, 0x5C, 0x6E, 0x97, 0xDD,
- 0x74, 0x1D, 0x08, 0xCA, 0x2E, 0x87, 0xE7, 0x65, 0x50, 0x98, 0x4E, 0x2F,
- 0xBB, 0xC9, 0x20, 0x3A, 0xBA, 0x0C, 0x3A, 0x4E, 0x9B, 0x20, 0x7A, 0x98,
- 0xBD, 0x06, 0x85, 0xE9, 0xA0, 0x58, 0x4C, 0x37, 0x83, 0x81, 0xD2, 0x6E,
- 0xD0, 0x34, 0x1C, 0x66, 0x83, 0x62, 0x21, 0x90, 0xAE, 0x95, 0x02
-};
-#else
-/* Test TPDU - ALL YOUR */
-static u_int8_t tpdu_test[] = {
- 0x04, 0x04, 0x81, 0x32, 0x24, 0x00, 0x00, 0x80, 0x21, 0x03, 0x41, 0x24,
- 0x32, 0x40, 0x1F, 0x41, 0x26, 0x13, 0x94, 0x7D, 0x56, 0xA5, 0x20, 0x28,
- 0xF2, 0xE9, 0x2C, 0x82, 0x82, 0xD2, 0x22, 0x48, 0x58, 0x64, 0x3E, 0x9D,
- 0x47, 0x10, 0xF5, 0x09, 0xAA, 0x4E, 0x01
-};
-#endif
-
-int gsm0411_send_sms(struct gsm_lchan *lchan, struct sms_deliver *sms)
-{
- struct msgb *msg = gsm411_msgb_alloc();
- struct gsm48_hdr *gh;
- struct gsm411_rp_hdr *rp;
- u_int8_t *data;
-
- msg->lchan = lchan;
-
- gh = (struct gsm48_hdr *) msgb_put(msg, sizeof(*gh));
- gh->proto_discr = GSM48_PDISC_SMS;
- gh->msg_type = GSM411_MT_CP_DATA;
-
- rp = (struct gsm411_rp_hdr *)msgb_put(msg, sizeof(*rp));
- rp->len = sizeof(tpdu_test) + 10;
- rp->msg_type = GSM411_MT_RP_DATA_MT;
- rp->msg_ref = 42; /* FIXME: Choose randomly */
- /* Hardcode OA for now */
- data = (u_int8_t *)msgb_put(msg, 8);
- data[0] = 0x07;
- data[1] = 0x91;
- data[2] = 0x44;
- data[3] = 0x77;
- data[4] = 0x58;
- data[5] = 0x10;
- data[6] = 0x06;
- data[7] = 0x50;
- data = (u_int8_t *)msgb_put(msg, 1);
- data[0] = 0;
-
- /* FIXME: Hardcoded for now */
- //smslen = gsm0411_tpdu_from_sms(tpdu, sms);
-
- /* RPDU length */
- data = (u_int8_t *)msgb_put(msg, 1);
- data[0] = sizeof(tpdu_test);
-
- data = (u_int8_t *)msgb_put(msg, sizeof(tpdu_test));
-
- //memcpy(data, tpdu, smslen);
- memcpy(data, tpdu_test, sizeof(tpdu_test));
-
- DEBUGP(DSMS, "TX: SMS SUBMIT\n");
-
- return gsm0411_sendmsg(msg);
-}
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