rebuffer option for chan_lcr (160 bytes per frame)

l1-link state "unknown" if not known yet.

removed root user check.

	modified:   bchannel.c
	modified:   bchannel.h
	modified:   chan_lcr.c
	modified:   chan_lcr.h
	modified:   dss1.cpp
	modified:   lcradmin.c
	modified:   mISDN.cpp
	modified:   main.c

bchannel.c

@@ -195,6 +195,7 @@ void bchannel_activate(struct bchannel *bchannel, int activate)
 		CERROR(NULL, NULL, "Failed to send to socket %d\n", bchannel->b_sock);
 
 	bchannel->b_state = (activate)?BSTATE_ACTIVATING:BSTATE_DEACTIVATING;
+	bchannel->rebuffer_usage = 0;
 }
 
 
@@ -249,6 +250,7 @@ void bchannel_destroy(struct bchannel *bchannel)
 	{
 		close(bchannel->b_sock);
 		bchannel->b_sock = -1;
+		bchannel->rebuffer_usage = 0;
 	}
 	bchannel->b_state = BSTATE_IDLE;
 }
@@ -346,17 +348,63 @@ static void bchannel_receive(struct bchannel *bchannel, unsigned char *buffer, i
 		/* return, because we have no audio from port */
 		return;
 	}
-	if (bchannel->call->pipe[1] > -1)
+
+	if (bchannel->call->pipe[1] < 0)
 	{
+		/* nobody there */
+		return;
+	}
+
+
+	if (bchannel->call->rebuffer) {
+		int u = bchannel->rebuffer_usage;
+		unsigned char * b = bchannel->rebuffer;
+		unsigned char * d = data;
+		int l = len;
+		int fd = bchannel->call->pipe[1];
+
+		if (u > 0) {
+			if (u + l >= 160) {
+				memcpy(b + u, d, 160 - u);
+				d += 160 - u;
+				l -= 160 - u;
+				u = 0;
+				if (write(fd, b, 160) < 0) {
+					goto errout;
+				}
+			} else {
+				memcpy(b + u, d, l);
+				u += l;
+				l = 0;
+			}
+		}
+
+		while (l >= 160) {
+			if (write(fd, d, 160) < 0) {
+				goto errout;
+			}
+			d += 160;
+			l -= 160;
+		}
+
+		if (l > 0) {
+			memcpy(b, d, l);
+		} 
+		bchannel->rebuffer_usage = u + l;
+	} else {
 		len = write(bchannel->call->pipe[1], data, len);
 		if (len < 0)
 		{
-			close(bchannel->call->pipe[1]);
-			bchannel->call->pipe[1] = -1;
-			CDEBUG(NULL, NULL, "broken pipe on bchannel pipe\n");
-			return;
+			goto errout;
 		}
 	}
+
+	return;
+ errout:
+	close(bchannel->call->pipe[1]);
+	bchannel->call->pipe[1] = -1;
+	bchannel->rebuffer_usage = 0;
+	CDEBUG(NULL, NULL, "broken pipe on bchannel pipe\n");
 }
 
 

bchannel.h

@@ -30,6 +30,8 @@ struct bchannel {
 	int b_dtmf;
 	int b_bf_len;
 	unsigned char b_bf_key[128];
+	int rebuffer_usage;
+	unsigned char rebuffer[160];
 };
 
 

chan_lcr.c

@@ -475,6 +475,14 @@ void apply_opt(struct chan_call *call, char *data)
 			if (call->bchannel)
 				bchannel_pipeline(call->bchannel, call->pipeline);
 			break;
+		case 'r':
+			if (opt[1] == '\0') {
+				CERROR(call, call->ast, "Option 'r' (re-buffer 160 bytes) expects no parameter.\n", opt);
+				break;
+			}
+			CDEBUG(call, call->ast, "Option 'r' (re-buffer 160 bytes)");
+			call->rebuffer = 1;
+			break;
 #if 0
 		case 's':
 			if (opt[1] != '\0') {

chan_lcr.h

@@ -53,6 +53,8 @@ struct chan_call {
 					/* shall dtmf be enabled */
 	int			no_dtmf;
 					/* dtmf disabled by option */
+        int                     rebuffer; /* send only 160 bytes frames
+					     to asterisk */
 	char			pipeline[256];
 					/* echo cancel pipeline by option */
 	int			tx_gain, rx_gain;

dss1.cpp

@@ -1193,14 +1193,17 @@ void Pdss1::release_complete_ind(unsigned int cmd, unsigned int pid, struct l3_m
 	
 	l1l2l3_trace_header(p_m_mISDNport, this, L3_RELEASE_COMPLETE_IND, DIRECTION_IN);
 	/* in case layer 2 is down during setup, we send cause 27 loc 5 */
-	if (p_state == PORT_STATE_OUT_SETUP && !p_m_mISDNport->l1link)
+	if (p_state == PORT_STATE_OUT_SETUP && p_m_mISDNport->l1link == 0)
 	{
 		cause = 27;
 		location = 5;
 	} else
 	{
 		dec_ie_cause(l3m, &location, &cause);
-		add_trace("layer 1", NULL, (p_m_mISDNport->l1link)?"up":"down");
+		if (p_m_mISDNport->l1link < 0)
+			add_trace("layer 1", NULL, "unknown");
+		else
+			add_trace("layer 1", NULL, (p_m_mISDNport->l1link)?"up":"down");
 	}
 	end_trace();
 	if (location == LOCATION_PRIVATE_LOCAL)

lcradmin.c

@@ -679,8 +679,11 @@ char *admin_state(int sock, char *argv[])
 					color((m[i].u.i.l2link)?green:red);
 					addstr((m[i].u.i.l2link)?"  L2 UP":"  L2 down");
 				}
-				color((m[i].u.i.l1link)?green:blue);
-				addstr((m[i].u.i.l1link)?"  L1 ACTIVE":"  L1 inactive");
+				color((m[i].u.i.l1link > 0)?green:blue);
+				if (m[i].u.i.l1link < 0)
+					addstr("  L1 unknown");
+				else
+					addstr((m[i].u.i.l1link)?"  L1 ACTIVE":"  L1 inactive");
 				if (m[i].u.i.los)
 				{
 					color(red);

mISDN.cpp

@@ -2215,6 +2215,7 @@ struct mISDNport *mISDNport_open(int port, int ptp, int force_nt, int l2hold, st
 	while(*mISDNportp)
 		mISDNportp = &((*mISDNportp)->next);
 	mISDNport = (struct mISDNport *)MALLOC(sizeof(struct mISDNport));
+	mISDNport->l1link = -1;
 	pmemuse++;
 	*mISDNportp = mISDNport;
 

main.c

@@ -226,13 +226,6 @@ int main(int argc, char *argv[])
 	/* init crc */
 	crc_init();
 
-	/* check for root (real or effective) */
-	if (getuid() && geteuid())
-	{
-		fprintf(stderr, "Please run %s as super-user.\n", NAME);
-		goto free;
-	}
-
 	/* the mutex init */
 	if (pthread_mutex_init(&mutexd, NULL))
 	{