X-Git-Url: http://git.eversberg.eu/gitweb.cgi?p=lcr.git;a=blobdiff_plain;f=gsm.cpp;h=b1895f8492a905b00334bd3b14067519c837ea30;hp=f9c9914c417c37653f81bf8c649379bd870ba99e;hb=ab670ecfdc8c7e299bc1b9ddea014980ad7637fa;hpb=7239f7e28e0c566c2e9ce2cacc9c32e297dd17d7

diff --git a/gsm.cpp b/gsm.cpp
index f9c9914..b1895f8 100644
--- a/gsm.cpp
+++ b/gsm.cpp
@@ -11,13 +11,28 @@
 
 #include "main.h"
 
+#ifndef _GNU_SOURCE
+#define _GNU_SOURCE
+#endif
 extern "C" {
-#include "openbsc/mncc.h"
-#include "openbsc/trau_frame.h"
-#include "openbsc/select.h"
-#include "openbsc/debug.h"
-#include "openbsc/e1_input.h"
-#include "bootstrap.h"
+#include <getopt.h>
+
+#include <openbsc/db.h>
+#include <openbsc/select.h>
+#include <openbsc/debug.h>
+#include <openbsc/e1_input.h>
+#include <openbsc/talloc.h>
+#include <openbsc/mncc.h>
+#include <openbsc/trau_frame.h>
+struct gsm_network *bsc_gsmnet = 0;
+extern int ipacc_rtp_direct;
+extern int bsc_bootstrap_network(int (*mmc_rev)(struct gsm_network *, int, void *),
+				 const char *cfg_file);
+extern int bsc_shutdown_net(struct gsm_network *net);
+void talloc_ctx_init(void);
+void on_dso_load_token(void);
+void on_dso_load_rrlp(void);
+
 #include "gsm_audio.h"
 
 #undef AF_ISDN
@@ -170,9 +185,7 @@ int Pgsm::bchannel_open(int index)
 /* receive from bchannel */
 void Pgsm::bchannel_receive(struct mISDNhead *hh, unsigned char *data, int len)
 {
-	int i, j, k;
 	unsigned char frame[33];
-	struct decoded_trau_frame tf;
 
 	/* encoder init failed */
 	if (!p_m_g_encoder)
@@ -190,31 +203,7 @@ void Pgsm::bchannel_receive(struct mISDNhead *hh, unsigned char *data, int len)
 
 			/* encode data */
 			gsm_audio_encode(p_m_g_encoder, p_m_g_rxdata, frame);
-
-			/* set c-bits and t-bits */
-			tf.c_bits[0] = 1;
-			tf.c_bits[1] = 1;
-			tf.c_bits[2] = 1;
-			tf.c_bits[3] = 0;
-			tf.c_bits[4] = 0;
-			memset(&tf.c_bits[5], 0, 6);
-			memset(&tf.c_bits[11], 1, 10);
-			memset(&tf.t_bits[0], 1, 4);
-
-			/* reassemble d-bits */
-			i = 0;
-			j = 0;
-			k = 0;
-			while(i < 260) {
-				tf.d_bits[i] = (frame[j] >> k) & 1;
-				if (++k == 8) {
-					k = 0;
-					j++;
-				}
-				i++;
-			}
-
-			trau_send(&tf);
+			frame_send(frame);
 		}
 	}
 }
@@ -238,57 +227,33 @@ void Pgsm::bchannel_send(unsigned int prim, unsigned int id, unsigned char *data
 		PERROR("Failed to send to socket index %d\n", index);
 }
 
-void Pgsm::trau_send(void *_tf)
+void Pgsm::frame_send(void *_frame)
 {
-	struct decoded_trau_frame *tf = (struct decoded_trau_frame *)_tf;
-	unsigned char data[sizeof(struct gsm_trau_frame) + sizeof(struct decoded_trau_frame)];
-	struct gsm_trau_frame *frame = (struct gsm_trau_frame *)data;
+	unsigned char buffer[sizeof(struct gsm_data_frame) + 33];
+	struct gsm_data_frame *frame = (struct gsm_data_frame *)buffer;
 	
-	frame->msg_type = GSM_TRAU_FRAME;
+	frame->msg_type = GSM_TCHF_FRAME;
 	frame->callref = p_m_g_callref;
-	memcpy(frame->data, tf, sizeof(struct decoded_trau_frame));
+	memcpy(frame->data, _frame, 33);
 	mncc_send((struct gsm_network *)gsm->network, frame->msg_type, frame);
 }
 
 
-void Pgsm::trau_receive(void *_frame)
+void Pgsm::frame_receive(void *_frame)
 {
-	struct gsm_trau_frame *frm = (struct gsm_trau_frame *)_frame;
-	struct decoded_trau_frame *tf = (struct decoded_trau_frame *)frm->data;
-//struct decoded_trau_frame *tf = (struct decoded_trau_frame *)_frame;
-	unsigned char frame[33];
+	struct gsm_data_frame *frame = (struct gsm_data_frame *)_frame;
 	signed short samples[160];
 	unsigned char data[160];
-	int i, j, k;
+	int i;
 
 	if (!p_m_g_decoder)
 		return;
 
-//	printf("got trau %d %d %d %d %d\n", tf->c_bits[0], tf->c_bits[1], tf->c_bits[2], tf->c_bits[3], tf->c_bits[4]);
-	if (tf->c_bits[0]!=0 || tf->c_bits[1]!=0 || tf->c_bits[2]!=0 || tf->c_bits[3]!=1 || tf->c_bits[4]!=0)
-		PERROR("illegal trau (C1-C5) %d %d %d %d %d\n", tf->c_bits[0], tf->c_bits[1], tf->c_bits[2], tf->c_bits[3], tf->c_bits[4]);
-
-	/* set GSM_MAGIC */
-	memset(&frame, 0, sizeof(frame));
-//	frame[0] = 0xd << 4;
-
-	/* reassemble bits */
-	i = 0;
-	j = 0;
-	k = 0;
-	while(i < 260) {
-		if (tf->d_bits[i] > 1)
-			PERROR("fix!\n");
-		frame[j] |= (tf->d_bits[i] << k);
-		if (++k == 8) {
-			k = 0;
-			j++;
-		}
-		i++;
-	}
+	if ((frame->data[0]>>4) != 0xd)
+		PERROR("received GSM frame with wrong magig 0x%x\n", frame->data[0]>>4);
 	
 	/* decode */
-	gsm_audio_decode(p_m_g_decoder, frame, samples);
+	gsm_audio_decode(p_m_g_decoder, frame->data, samples);
 	for (i = 0; i < 160; i++) {
 		data[i] = audio_s16_to_law[samples[i] & 0xffff];
 	}
@@ -865,7 +830,7 @@ void Pgsm::retr_ind(unsigned int msg_type, unsigned int callref, struct gsm_mncc
 /*
  * BSC sends message to port
  */
-static int message_bcs(struct gsm_network *net, int msg_type, void *arg)
+static int message_bsc(struct gsm_network *net, int msg_type, void *arg)
 {
 	struct gsm_mncc *mncc = (struct gsm_mncc *)arg;
 	unsigned int callref = mncc->callref;
@@ -891,9 +856,9 @@ static int message_bcs(struct gsm_network *net, int msg_type, void *arg)
 		port = port->next;
 	}
 
-	if (msg_type == GSM_TRAU_FRAME) {
+	if (msg_type == GSM_TCHF_FRAME) {
 		if (port)
-			pgsm->trau_receive((struct gsm_trau_frame *)arg);
+			pgsm->frame_receive((struct gsm_trau_frame *)arg);
 		return 0;
 	}
 
@@ -1202,7 +1167,7 @@ void Pgsm::message_notify(unsigned int epoint_id, int message_id, union paramete
 	struct gsm_mncc *mncc;
 	int notify;
 
-	printf("if = %d\n", param->notifyinfo.notify);
+//	printf("if = %d\n", param->notifyinfo.notify);
 	if (param->notifyinfo.notify>INFO_NOTIFY_NONE) {
 		notify = param->notifyinfo.notify & 0x7f;
 		if (p_state!=PORT_STATE_CONNECT /*&& p_state!=PORT_STATE_IN_PROCEEDING*/ && p_state!=PORT_STATE_IN_ALERTING) {
@@ -1608,7 +1573,7 @@ int gsm_exit(int rc)
 			gsm_sock_close();
 		/* shutdown network */
 		if (gsm->network)
-			shutdown_net((struct gsm_network *)gsm->network);
+			bsc_shutdown_net((struct gsm_network *)gsm->network);
 		/* free network */
 //		if (gsm->network) {
 //			free((struct gsm_network *)gsm->network); /* TBD */
@@ -1622,9 +1587,17 @@ int gsm_exit(int rc)
 
 int gsm_init(void)
 {
-	char hlr[128], filename[128];
+	char hlr[128], cfg[128], filename[128];
         mode_t mode = S_IRUSR | S_IWUSR | S_IRGRP | S_IROTH;
-	int pcapfd;
+	int pcapfd, rc;
+
+	tall_bsc_ctx = talloc_named_const(NULL, 1, "openbsc");
+	talloc_ctx_init();
+	on_dso_load_token();
+	on_dso_load_rrlp();
+
+	/* seed the PRNG */
+	srand(time(NULL));
 
 	/* create gsm instance */
 	gsm = (struct lcr_gsm *)MALLOC(sizeof(struct lcr_gsm));
@@ -1637,46 +1610,63 @@ int gsm_init(void)
 	}
 
 	/* set debug */
-	debug_parse_category_mask(gsm->conf.debug);
+	if (gsm->conf.debug[0])
+		debug_parse_category_mask(gsm->conf.debug);
+
+	/* open pcap file */
+	if (gsm->conf.pcapfile[0]) {
+		if (gsm->conf.pcapfile[0] == '/')
+			SCPY(filename, gsm->conf.pcapfile);
+		else
+			SPRINT(filename, "%s/%s", CONFIG_DATA, gsm->conf.pcapfile);
+		pcapfd = open(filename, O_WRONLY|O_TRUNC|O_CREAT, mode);
+		if (pcapfd < 0) {
+			PERROR("Failed to open file for pcap\n");
+			return gsm_exit(-1);
+		}
+		e1_set_pcap_fd(pcapfd);
+	}
+
+	/* use RTP proxy for audio streaming */
+	ipacc_rtp_direct = 0;
 
 	/* init database */
 	if (gsm->conf.hlr[0] == '/')
 		SCPY(hlr, gsm->conf.hlr);
 	else
 		SPRINT(hlr, "%s/%s", CONFIG_DATA, gsm->conf.hlr);
-
-	// TODO multiple base stations
-	if (gsm->conf.numbts < 1 || gsm->conf.numbts > 1) {
-		PERROR("Expecting exactly one BTS. You defined %d.\n", gsm->conf.numbts);
+	if (db_init(hlr)) {
+		PERROR("GSM DB: Failed to init database '%s'. Please check the option settings.\n", hlr);
 		return gsm_exit(-1);
 	}
+	printf("DB: Database initialized.\n");
+	if (db_prepare()) {
+		PERROR("GSM DB: Failed to prepare database.\n");
+		return gsm_exit(-1);
+	}
+	printf("DB: Database prepared.\n");
 
 	/* bootstrap network */
-	gsm->network = bootstrap_network(&message_bcs, gsm->conf.bts[0].type, gsm->conf.mcc, gsm->conf.mnc, gsm->conf.lac, gsm->conf.bts[0].frequency[0], gsm->conf.bts[0].card, !gsm->conf.keep_l2, gsm->conf.short_name, gsm->conf.long_name, hlr, gsm->conf.allow_all);
-	if (!gsm->network) {
+	if (gsm->conf.openbsc_cfg[0] == '/')
+		SCPY(cfg, gsm->conf.openbsc_cfg);
+	else
+		SPRINT(cfg, "%s/%s", CONFIG_DATA, gsm->conf.openbsc_cfg);
+	rc = bsc_bootstrap_network(&message_bsc, cfg);
+	if (rc < 0) {
 		PERROR("Failed to bootstrap GSM network.\n");
 		return gsm_exit(-1);
 	}
+	gsm->network = bsc_gsmnet;
+
+	/* set reject cause */
+	if (gsm->conf.reject_cause)
+		gsm0408_set_reject_cause(gsm->conf.reject_cause);
 
 	/* open gsm loop interface */
 	if (gsm_sock_open(gsm->conf.interface_bsc)) {
 		return gsm_exit(-1);
 	}
 
-	/* open pcap file */
-	if (gsm->conf.pcapfile[0]) {
-		if (gsm->conf.pcapfile[0] == '/')
-			SCPY(filename, gsm->conf.pcapfile);
-		else
-			SPRINT(filename, "%s/%s", CONFIG_DATA, gsm->conf.pcapfile);
-		pcapfd = open(filename, O_WRONLY|O_TRUNC|O_CREAT, mode);
-		if (pcapfd < 0) {
-			PERROR("Failed to open file for pcap\n");
-			return gsm_exit(-1);
-		}
-		e1_set_pcap_fd(pcapfd);
-	}
-
 	return 0;
 }