LCR is now uses socket based mISDN V2 API
[lcr.git] / mISDN.cpp
index 53cb774..874d2a6 100644 (file)
--- a/mISDN.cpp
+++ b/mISDN.cpp
 
 #include "main.h"
 #include "myisdn.h"
-#ifndef SOCKET_MISDN
-// old mISDN
-extern "C" {
-#include <mISDNuser/net_l2.h>
-}
-
-#ifndef CMX_TXDATA_ON
-#define OLD_MISDN
-#endif
-#ifndef CMX_TXDATA_OFF
-#define OLD_MISDN
-#endif
-#ifndef CMX_DELAY
-#define OLD_MISDN
-#endif
-#ifndef PIPELINE_CFG
-#define OLD_MISDN
-#endif
-#ifndef CMX_TX_DATA
-#define OLD_MISDN
-#endif
 
-#ifdef OLD_MISDN
-#warning
-#warning *********************************************************
-#warning *
-#warning * It seems that you use an older version of mISDN.
-#warning * Features like voice recording or echo will not work.
-#warning * Also it causes problems with loading modules and may
-#warning * not work at all.
-#warning *
-#warning * Please upgrade to newer version. A working version can
-#warning * be found at www.linux-call-router.de.
-#warning *
-#warning * Do not use the mISDN_1_1 branch, it does not have all
-#warning * the features that are required. Use the master branch
-#warning * instead.
-#warning *
-#warning *********************************************************
-#warning
-#error
-#endif
-
-#ifndef ISDN_PID_L4_B_USER
-#define ISDN_PID_L4_B_USER 0x440000ff
-#endif
-
-#else
-// socket mISDN
 extern "C" {
 }
 #include <q931.h>
@@ -74,7 +26,6 @@ extern "C" {
 #define container_of(ptr, type, member) ({                     \
        const typeof( ((type *)0)->member ) *__mptr = (ptr);    \
        (type *)( (char *)__mptr - offsetof(type,member) );})
-#endif
 
 // timeouts if activating/deactivating response from mISDN got lost
 #define B_TIMER_ACTIVATING 1 // seconds
@@ -87,7 +38,6 @@ struct mISDNport *mISDNport_first;
 unsigned char mISDN_rand[256];
 int mISDN_rand_count = 0;
 
-#ifdef SOCKET_MISDN
 unsigned long mt_assign_pid = ~0;
 
 int mISDNsocket = -1;
@@ -137,77 +87,6 @@ void mISDN_deinitialize(void)
        if (mISDNsocket > -1)
                close(mISDNsocket);
 }
-#else
-int entity = 0; /* used for udevice */
-int mISDNdevice = -1; /* the device handler and port list */
-
-int mISDN_initialize(void)
-{
-       char debug_log[128];
-       unsigned char buff[1025];
-       iframe_t *frm = (iframe_t *)buff;
-       int ret;
-
-       /* initialize stuff of the NT lib */
-       if (options.deb & DEBUG_STACK)
-       {
-               global_debug = 0xffffffff & ~DBGM_MSG;
-//             global_debug = DBGM_L3DATA;
-       } else
-               global_debug = DBGM_MAN;
-       SPRINT(debug_log, "%s/debug.log", INSTALL_DATA);
-       if (options.deb & DEBUG_LOG)
-               debug_init(global_debug, debug_log, debug_log, debug_log);
-       else
-               debug_init(global_debug, NULL, NULL, NULL);
-       msg_init();
-
-       /* open mISDNdevice if not already open */
-       if (mISDNdevice < 0)
-       {
-               ret = mISDN_open();
-               if (ret < 0)
-               {
-                       fprintf(stderr, "cannot open mISDN device ret=%d errno=%d (%s) Check for mISDN modules!\nAlso did you create \"/dev/mISDN\"? Do: \"mknod /dev/mISDN c 46 0\"\n", ret, errno, strerror(errno));
-                       return(-1);
-               }
-               mISDNdevice = ret;
-               PDEBUG(DEBUG_ISDN, "mISDN device opened.\n");
-
-               /* create entity for layer 3 TE-mode */
-               mISDN_write_frame(mISDNdevice, buff, 0, MGR_NEWENTITY | REQUEST, 0, 0, NULL, TIMEOUT_1SEC);
-               ret = mISDN_read_frame(mISDNdevice, frm, sizeof(iframe_t), 0, MGR_NEWENTITY | CONFIRM, TIMEOUT_1SEC);
-               if (ret < (int)mISDN_HEADER_LEN)
-               {
-                       noentity:
-                       FATAL("Cannot request MGR_NEWENTITY from mISDN. Exitting due to software bug.");
-               }
-               entity = frm->dinfo & 0xffff;
-               if (!entity)
-                       goto noentity;
-               PDEBUG(DEBUG_ISDN, "our entity for l3-processes is %d.\n", entity);
-       }
-       return(0);
-}
-
-void mISDN_deinitialize(void)
-{
-       unsigned char buff[1025];
-
-       debug_close();
-       global_debug = 0;
-
-       if (mISDNdevice > -1)
-       {
-               /* free entity */
-               mISDN_write_frame(mISDNdevice, buff, 0, MGR_DELENTITY | REQUEST, entity, 0, NULL, TIMEOUT_1SEC);
-               /* close device */
-               mISDN_close(mISDNdevice);
-               mISDNdevice = -1;
-               PDEBUG(DEBUG_ISDN, "mISDN device closed.\n");
-       }
-}
-#endif
 
 /*
  * constructor
@@ -366,14 +245,8 @@ static struct isdn_message {
        {"MT_FACILITY", L3_FACILITY_REQ},
        {"MT_STATUS", L3_STATUS_REQ},
        {"MT_RESTART", L3_RESTART_REQ},
-#ifdef SOCKET_MISDN
        {"MT_NEW_L3ID", L3_NEW_L3ID_REQ},
        {"MT_RELEASE_L3ID", L3_RELEASE_L3ID_REQ},
-#else
-       {"MT_NEW_CR", L3_NEW_CR_REQ},
-       {"MT_RELEASE_CR", L3_RELEASE_CR_REQ},
-#endif
-
        {NULL, 0},
 };
 static char *isdn_prim[4] = {
@@ -401,11 +274,7 @@ void l1l2l3_trace_header(struct mISDNport *mISDNport, class PmISDN *port, unsign
        SCAT(msgtext, isdn_prim[msg&0x00000003]);
 
        /* add direction */
-#ifdef SOCKET_MISDN
        if (direction && (msg&0xffffff00)!=L3_NEW_L3ID_REQ && (msg&0xffffff00)!=L3_RELEASE_L3ID_REQ)
-#else
-       if (direction && (msg&0xffffff00)!=L3_NEW_CR_REQ && (msg&0xffffff00)!=L3_RELEASE_CR_REQ)
-#endif
        {
                if (mISDNport)
                {
@@ -440,7 +309,6 @@ void l1l2l3_trace_header(struct mISDNport *mISDNport, class PmISDN *port, unsign
 /*
  * send control information to the channel (dsp-module)
  */
-#ifdef SOCKET_MISDN
 void ph_control(struct mISDNport *mISDNport, class PmISDN *isdnport, unsigned long sock, unsigned long c1, unsigned long c2, char *trace_name, int trace_value)
 {
        unsigned char buffer[MISDN_HEADER_LEN+sizeof(int)+sizeof(int)];
@@ -458,37 +326,14 @@ void ph_control(struct mISDNport *mISDNport, class PmISDN *isdnport, unsigned lo
        ret = sendto(sock, buffer, MISDN_HEADER_LEN+sizeof(int)*2, 0, NULL, 0);
        if (ret <= 0)
                PERROR("Failed to send to socket %d\n", sock);
-#else
-void ph_control(struct mISDNport *mISDNport, class PmISDN *isdnport, unsigned long addr, unsigned long c1, unsigned long c2, char *trace_name, int trace_value)
-{
-       unsigned char buffer[mISDN_HEADER_LEN+sizeof(int)+sizeof(int)];
-       iframe_t *ctrl = (iframe_t *)buffer; 
-       unsigned long *d = (unsigned long *)&ctrl->data.p;
-
-       if (!addr)
-               return;
-
-       ctrl->prim = PH_CONTROL | REQUEST;
-       ctrl->addr = addr | FLG_MSG_DOWN;
-       ctrl->dinfo = 0;
-       ctrl->len = sizeof(int)*2;
-       *d++ = c1;
-       *d++ = c2;
-       mISDN_write(mISDNdevice, ctrl, mISDN_HEADER_LEN+ctrl->len, TIMEOUT_1SEC);
-#endif
        chan_trace_header(mISDNport, isdnport, "BCHANNEL control", DIRECTION_OUT);
-#ifdef SOCKET_MISDN
        if (c1 == DSP_CONF_JOIN)
-#else
-       if (c1 == CMX_CONF_JOIN)
-#endif
                add_trace(trace_name, NULL, "0x%08x", trace_value);
        else
                add_trace(trace_name, NULL, "%d", trace_value);
        end_trace();
 }
 
-#ifdef SOCKET_MISDN
 void ph_control_block(struct mISDNport *mISDNport, class PmISDN *isdnport, int sock, unsigned long c1, void *c2, int c2_len, char *trace_name, int trace_value)
 {
        unsigned char buffer[MISDN_HEADER_LEN+sizeof(int)+c2_len];
@@ -506,24 +351,6 @@ void ph_control_block(struct mISDNport *mISDNport, class PmISDN *isdnport, int s
        ret = sendto(sock, buffer, MISDN_HEADER_LEN+sizeof(int)+c2_len, 0, NULL, 0);
        if (ret <= 0)
                PERROR("Failed to send to socket %d\n", sock);
-#else
-void ph_control_block(struct mISDNport *mISDNport, class PmISDN *isdnport, unsigned long addr, unsigned long c1, void *c2, int c2_len, char *trace_name, int trace_value)
-{
-       unsigned char buffer[mISDN_HEADER_LEN+sizeof(int)+c2_len];
-       iframe_t *ctrl = (iframe_t *)buffer;
-       unsigned long *d = (unsigned long *)&ctrl->data.p;
-
-       if (!addr)
-               return;
-
-       ctrl->prim = PH_CONTROL | REQUEST;
-       ctrl->addr = addr | FLG_MSG_DOWN;
-       ctrl->dinfo = 0;
-       ctrl->len = sizeof(int)+c2_len;
-       *d++ = c1;
-       memcpy(d, c2, c2_len);
-       mISDN_write(mISDNdevice, ctrl, mISDN_HEADER_LEN+ctrl->len, TIMEOUT_1SEC);
-#endif
        chan_trace_header(mISDNport, isdnport, "BCHANNEL control", DIRECTION_OUT);
        add_trace(trace_name, NULL, "%d", trace_value);
        end_trace();
@@ -537,7 +364,6 @@ void ph_control_block(struct mISDNport *mISDNport, class PmISDN *isdnport, unsig
 static int _bchannel_create(struct mISDNport *mISDNport, int i)
 {
        int ret;
-#ifdef SOCKET_MISDN
        unsigned long on = 1;
        struct sockaddr_mISDN addr;
 
@@ -586,80 +412,6 @@ static int _bchannel_create(struct mISDNport *mISDNport, int i)
        end_trace();
 
        return(1);
-#else
-       unsigned char buff[1024];
-       layer_info_t li;
-       mISDN_pid_t pid;
-
-       if (!mISDNport->b_stid[i])
-       {
-               PERROR("Error: no stack for index %d\n", i);
-               return(0);
-       }
-       if (mISDNport->b_addr[i])
-       {
-               PERROR("Error: stack already created for index %d\n", i);
-               return(0);
-       }
-
-       /* create new layer */
-       PDEBUG(DEBUG_BCHANNEL, "creating new layer for bchannel %d (index %d).\n" , i+1+(i>=15), i);
-       memset(&li, 0, sizeof(li));
-       memset(&pid, 0, sizeof(pid));
-       li.object_id = -1;
-       li.extentions = 0;
-       li.st = mISDNport->b_stid[i];
-       UCPY(li.name, "B L4");
-       li.pid.layermask = ISDN_LAYER((4));
-       li.pid.protocol[4] = ISDN_PID_L4_B_USER;
-       ret = mISDN_new_layer(mISDNdevice, &li);
-       if (ret)
-       {
-               failed_new_layer:
-               PERROR("mISDN_new_layer() failed to add bchannel %d (index %d)\n", i+1+(i>=15), i);
-               goto failed;
-       }
-       mISDNport->b_addr[i] = li.id;
-       if (!li.id)
-       {
-               goto failed_new_layer;
-       }
-       PDEBUG(DEBUG_BCHANNEL, "new layer (b_addr=0x%x)\n", mISDNport->b_addr[i]);
-
-       /* create new stack */
-       pid.protocol[1] = ISDN_PID_L1_B_64TRANS;
-       pid.protocol[2] = ISDN_PID_L2_B_TRANS;
-       pid.protocol[3] = ISDN_PID_L3_B_DSP;
-       pid.protocol[4] = ISDN_PID_L4_B_USER;
-       pid.layermask = ISDN_LAYER((1)) | ISDN_LAYER((2)) | ISDN_LAYER((3)) | ISDN_LAYER((4));
-       ret = mISDN_set_stack(mISDNdevice, mISDNport->b_stid[i], &pid);
-       if (ret)
-       {
-               stack_error:
-               PERROR("mISDN_set_stack() failed (ret=%d) to add bchannel (index %d) stid=0x%x\n", ret, i, mISDNport->b_stid[i]);
-               mISDN_write_frame(mISDNdevice, buff, mISDNport->b_addr[i], MGR_DELLAYER | REQUEST, 0, 0, NULL, TIMEOUT_1SEC);
-               goto failed;
-       }
-       ret = mISDN_get_setstack_ind(mISDNdevice, mISDNport->b_addr[i]);
-       if (ret)
-               goto stack_error;
-
-       /* get layer id */
-       mISDNport->b_addr[i] = mISDN_get_layerid(mISDNdevice, mISDNport->b_stid[i], 4);
-       if (!mISDNport->b_addr[i])
-               goto stack_error;
-       chan_trace_header(mISDNport, mISDNport->b_port[i], "BCHANNEL create stack", DIRECTION_OUT);
-       add_trace("channel", NULL, "%d", i+1+(i>=15));
-       add_trace("stack", "id", "0x%08x", mISDNport->b_stid[i]);
-       add_trace("stack", "address", "0x%08x", mISDNport->b_addr[i]);
-       end_trace();
-
-       return(1);
-
-failed:
-       mISDNport->b_addr[i] = 0;
-       return(0);
-#endif
 }
 
 
@@ -669,7 +421,6 @@ failed:
  */
 static void _bchannel_activate(struct mISDNport *mISDNport, int i, int activate)
 {
-#ifdef SOCKET_MISDN
        struct mISDNhead act;
        int ret;
 
@@ -680,16 +431,6 @@ static void _bchannel_activate(struct mISDNport *mISDNport, int i, int activate)
        ret = sendto(mISDNport->b_socket[i], &act, MISDN_HEADER_LEN, 0, NULL, 0);
        if (ret <= 0)
                PERROR("Failed to send to socket %d\n", mISDNport->b_socket[i]);
-#else
-       iframe_t act;
-
-       /* activate bchannel */
-       act.prim = (activate?DL_ESTABLISH:DL_RELEASE) | REQUEST; 
-       act.addr = mISDNport->b_addr[i] | FLG_MSG_DOWN;
-       act.dinfo = 0;
-       act.len = 0;
-       mISDN_write(mISDNdevice, &act, mISDN_HEADER_LEN+act.len, TIMEOUT_1SEC);
-#endif
 
        /* trace */
        chan_trace_header(mISDNport, mISDNport->b_port[i], activate?(char*)"BCHANNEL activate":(char*)"BCHANNEL deactivate", DIRECTION_OUT);
@@ -707,7 +448,6 @@ static void _bchannel_activate(struct mISDNport *mISDNport, int i, int activate)
 static void _bchannel_configure(struct mISDNport *mISDNport, int i)
 {
        struct PmISDN *port;
-#ifdef SOCKET_MISDN
        int handle;
 
        if (mISDNport->b_socket[i] < 0)
@@ -745,47 +485,6 @@ static void _bchannel_configure(struct mISDNport *mISDNport, int i)
                ph_control(mISDNport, port, handle, DTMF_TONE_START, 0, "DSP-DTMF", 1);
        if (port->p_m_crypt)
                ph_control_block(mISDNport, port, handle, DSP_BF_ENABLE_KEY, port->p_m_crypt_key, port->p_m_crypt_key_len, "DSP-CRYPT", port->p_m_crypt_key_len);
-#else
-       unsigned long handle;
-
-       handle = mISDNport->b_addr[i];
-       port = mISDNport->b_port[i];
-       if (!port)
-       {
-               PERROR("bchannel index i=%d not associated with a port object\n", i);
-               return;
-       }
-
-       /* set dsp features */
-#ifndef OLD_MISDN
-       if (port->p_m_txdata)
-               ph_control(mISDNport, port, handle, (port->p_m_txdata)?CMX_TXDATA_ON:CMX_TXDATA_OFF, 0, "DSP-TXDATA", port->p_m_txdata);
-       if (port->p_m_delay)
-               ph_control(mISDNport, port, handle, CMX_DELAY, port->p_m_delay, "DSP-DELAY", port->p_m_delay);
-#endif
-       if (port->p_m_tx_gain)
-               ph_control(mISDNport, port, handle, VOL_CHANGE_TX, port->p_m_tx_gain, "DSP-TX_GAIN", port->p_m_tx_gain);
-       if (port->p_m_rx_gain)
-               ph_control(mISDNport, port, handle, VOL_CHANGE_RX, port->p_m_rx_gain, "DSP-RX_GAIN", port->p_m_rx_gain);
-#ifndef OLD_MISDN
-       if (port->p_m_pipeline[0])
-               ph_control_block(mISDNport, port, handle, PIPELINE_CFG, port->p_m_pipeline, strlen(port->p_m_pipeline)+1, "DSP-PIPELINE", 0);
-#endif
-       if (port->p_m_conf)
-               ph_control(mISDNport, port, handle, CMX_CONF_JOIN, port->p_m_conf, "DSP-CONF", port->p_m_conf);
-       if (port->p_m_echo)
-               ph_control(mISDNport, port, handle, CMX_ECHO_ON, 0, "DSP-ECHO", 1);
-       if (port->p_m_tone)
-               ph_control(mISDNport, port, handle, TONE_PATT_ON, port->p_m_tone, "DSP-TONE", port->p_m_tone);
-       if (port->p_m_rxoff)
-               ph_control(mISDNport, port, handle, CMX_RECEIVE_OFF, 0, "DSP-RXOFF", 1);
-//     if (port->p_m_txmix)
-//             ph_control(mISDNport, port, handle, CMX_MIX_ON, 0, "DSP-MIX", 1);
-       if (port->p_m_dtmf)
-               ph_control(mISDNport, port, handle, DTMF_TONE_START, 0, "DSP-DTMF", 1);
-       if (port->p_m_crypt)
-               ph_control_block(mISDNport, port, handle, BF_ENABLE_KEY, port->p_m_crypt_key, port->p_m_crypt_key_len, "DSP-CRYPT", port->p_m_crypt_key_len);
-#endif
 }
 
 /*
@@ -794,7 +493,6 @@ static void _bchannel_configure(struct mISDNport *mISDNport, int i)
  */
 static void _bchannel_destroy(struct mISDNport *mISDNport, int i)
 {
-#ifdef SOCKET_MISDN
        if (mISDNport->b_socket[i] < 0)
                return;
        chan_trace_header(mISDNport, mISDNport->b_port[i], "BCHANNEL remove socket", DIRECTION_OUT);
@@ -803,23 +501,6 @@ static void _bchannel_destroy(struct mISDNport *mISDNport, int i)
        end_trace();
        close(mISDNport->b_socket[i]);
        mISDNport->b_socket[i] = -1;
-#else
-       unsigned char buff[1024];
-
-       chan_trace_header(mISDNport, mISDNport->b_port[i], "BCHANNEL remove stack", DIRECTION_OUT);
-       add_trace("channel", NULL, "%d", i+1+(i>=15));
-       add_trace("stack", "id", "0x%08x", mISDNport->b_stid[i]);
-       add_trace("stack", "address", "0x%08x", mISDNport->b_addr[i]);
-       end_trace();
-       /* remove our stack only if set */
-       if (mISDNport->b_addr[i])
-       {
-               PDEBUG(DEBUG_BCHANNEL, "free stack (b_addr=0x%x)\n", mISDNport->b_addr[i]);
-               mISDN_clear_stack(mISDNdevice, mISDNport->b_stid[i]);
-               mISDN_write_frame(mISDNdevice, buff, mISDNport->b_addr[i] | FLG_MSG_DOWN, MGR_DELLAYER | REQUEST, 0, 0, NULL, TIMEOUT_1SEC);
-               mISDNport->b_addr[i] = 0;
-       }
-#endif
 }
 
 
@@ -869,7 +550,6 @@ A bchannel can have the following events:
 
 - B_EVENT_USE
 A bchannel is required by a Port class.
-The bchannel shall be exported to the remote application.
 
 - B_EVENT_ACTIVATED
 The bchannel beomes active.
@@ -886,6 +566,12 @@ The bchannel is now used by remote application.
 - B_EVENT_IMPORTED
 The bchannel is not used by remote application.
 
+- B_EVENT_EXPORTREQUEST
+The bchannel shall be exported to the remote application.
+
+- B_EVENT_IMPORTREQUEST
+The bchannel is released from the remote application.
+
 All actions taken on these events depend on the current bchannel's state and if it is linked to a Port class.
 
 if an export request is receive by remote application, p_m_remote_* is set.
@@ -923,11 +609,7 @@ void bchannel_event(struct mISDNport *mISDNport, int i, int event)
        unsigned char *p_m_crypt_key = NULL;
        int p_m_crypt_key_len = 0;
        int p_m_crypt_key_type = 0;
-#ifdef SOCKET_MISDN
        unsigned long portid = (mISDNport->portnum<<8) + i+1+(i>=15);
-#else
-       unsigned long portid = mISDNport->b_stid[i];
-#endif
 
        if (b_port)
        {
@@ -956,11 +638,7 @@ void bchannel_event(struct mISDNport *mISDNport, int i, int event)
                                message_bchannel_to_join(p_m_remote_id, p_m_remote_ref, BCHANNEL_ASSIGN, portid, p_m_tx_gain, p_m_rx_gain, p_m_pipeline, p_m_crypt_key, p_m_crypt_key_len, p_m_crypt_key_type);
                                chan_trace_header(mISDNport, b_port, "MESSAGE_BCHANNEL (to remote application)", DIRECTION_NONE);
                                add_trace("type", NULL, "assign");
-#ifdef SOCKET_MISDN
                                add_trace("channel", NULL, "%d.%d", portid>>8, portid&0xff);
-#else
-                               add_trace("socket", "id", "%d", portid);
-#endif
                                end_trace();
                                state = B_STATE_EXPORTING;
                                mISDNport->b_remote_id[i] = p_m_remote_id;
@@ -1012,11 +690,7 @@ void bchannel_event(struct mISDNport *mISDNport, int i, int event)
                        message_bchannel_to_join(p_m_remote_id, p_m_remote_ref, BCHANNEL_ASSIGN, portid, p_m_tx_gain, p_m_rx_gain, p_m_pipeline, p_m_crypt_key, p_m_crypt_key_len, p_m_crypt_key_type);
                        chan_trace_header(mISDNport, b_port, "MESSAGE_BCHANNEL (to remote application)", DIRECTION_NONE);
                        add_trace("type", NULL, "assign");
-#ifdef SOCKET_MISDN
                        add_trace("channel", NULL, "%d.%d", portid>>8, portid&0xff);
-#else
-                       add_trace("socket", "id", "%d", portid);
-#endif
                        end_trace();
                        state = B_STATE_EXPORTING;
                        mISDNport->b_remote_id[i] = p_m_remote_id;
@@ -1049,6 +723,45 @@ void bchannel_event(struct mISDNport *mISDNport, int i, int event)
                }
                break;
 
+               case B_EVENT_IMPORTREQUEST:
+               /* special case where the bchannel is released by remote */
+               if (p_m_remote_ref)
+               {
+                       PERROR("import request with remote channel set, please correct.\n");
+                       break;
+               }
+               switch(state)
+               {
+                       case B_STATE_IDLE:
+                       case B_STATE_ACTIVE:
+                       /* bchannel is not exported */
+                       break;
+
+                       case B_STATE_ACTIVATING:
+                       case B_STATE_EXPORTING:
+                       /* do nothing because we must wait until bchanenl is active before deactivating */
+                       break;
+
+                       case B_STATE_REMOTE:
+                       /* bchannel is exported, so we re-import */
+                       message_bchannel_to_join(mISDNport->b_remote_id[i], 0, BCHANNEL_REMOVE, portid, 0,0,0,0,0,0);
+                       chan_trace_header(mISDNport, b_port, "MESSAGE_BCHANNEL (to remote application)", DIRECTION_NONE);
+                       add_trace("type", NULL, "remove");
+                       add_trace("channel", NULL, "%d.%d", portid>>8, portid&0xff);
+                       end_trace();
+                       state = B_STATE_IMPORTING;
+                       break;
+
+                       case B_STATE_DEACTIVATING:
+                       case B_STATE_IMPORTING:
+                       /* we may have taken an already deactivating bchannel, but do not require it anymore, so we do nothing */
+                       break;
+
+                       default:
+                       PERROR("Illegal event %d at state %d, please correct.\n", event, state);
+               }
+               break;
+
                case B_EVENT_ACTIVATED:
                timer = 0;
                switch(state)
@@ -1090,11 +803,7 @@ void bchannel_event(struct mISDNport *mISDNport, int i, int event)
                                message_bchannel_to_join(mISDNport->b_remote_id[i], 0, BCHANNEL_REMOVE, portid, 0,0,0,0,0,0);
                                chan_trace_header(mISDNport, b_port, "MESSAGE_BCHANNEL (to remote application)", DIRECTION_NONE);
                                add_trace("type", NULL, "remove");
-#ifdef SOCKET_MISDN
                                add_trace("channel", NULL, "%d.%d", portid>>8, portid&0xff);
-#else
-                               add_trace("socket", "id", "%d", portid);
-#endif
                                end_trace();
                                state = B_STATE_IMPORTING;
                        }
@@ -1131,11 +840,7 @@ void bchannel_event(struct mISDNport *mISDNport, int i, int event)
                        message_bchannel_to_join(mISDNport->b_remote_id[i], 0, BCHANNEL_REMOVE, portid, 0,0,0,0,0,0);
                        chan_trace_header(mISDNport, b_port, "MESSAGE_BCHANNEL (to remote application)", DIRECTION_NONE);
                        add_trace("type", NULL, "remove");
-#ifdef SOCKET_MISDN
                        add_trace("channel", NULL, "%d.%d", portid>>8, portid&0xff);
-#else
-                       add_trace("socket", "id", "%d", portid);
-#endif
                        end_trace();
                        state = B_STATE_IMPORTING;
                        break;
@@ -1169,11 +874,7 @@ void bchannel_event(struct mISDNport *mISDNport, int i, int event)
                                        message_bchannel_to_join(p_m_remote_id, p_m_remote_ref, BCHANNEL_ASSIGN, portid, p_m_tx_gain, p_m_rx_gain, p_m_pipeline, p_m_crypt_key, p_m_crypt_key_len, p_m_crypt_key_type);
                                        chan_trace_header(mISDNport, b_port, "MESSAGE_BCHANNEL (to remote application)", DIRECTION_NONE);
                                        add_trace("type", NULL, "assign");
-#ifdef SOCKET_MISDN
                                        add_trace("channel", NULL, "%d.%d", portid>>8, portid&0xff);
-#else
-                                       add_trace("socket", "id", "%d", portid);
-#endif
                                        end_trace();
                                        state = B_STATE_EXPORTING;
                                        mISDNport->b_remote_id[i] = p_m_remote_id;
@@ -1210,11 +911,7 @@ void bchannel_event(struct mISDNport *mISDNport, int i, int event)
                                        message_bchannel_to_join(p_m_remote_id, p_m_remote_ref, BCHANNEL_ASSIGN, portid, p_m_tx_gain, p_m_rx_gain, p_m_pipeline, p_m_crypt_key, p_m_crypt_key_len, p_m_crypt_key_type);
                                        chan_trace_header(mISDNport, b_port, "MESSAGE_BCHANNEL (to remote application)", DIRECTION_NONE);
                                        add_trace("type", NULL, "assign");
-#ifdef SOCKET_MISDN
                                        add_trace("channel", NULL, "%d.%d", portid>>8, portid&0xff);
-#else
-                                       add_trace("socket", "id", "%d", portid);
-#endif
                                        end_trace();
                                        state = B_STATE_EXPORTING;
                                        mISDNport->b_remote_id[i] = p_m_remote_id;
@@ -1408,7 +1105,7 @@ void message_bchannel_from_join(class JoinRemote *joinremote, int type, unsigned
                        PDEBUG(DEBUG_BCHANNEL, "join %d has no port (anymore as object)\n", joinremote->j_serial);
                        return;
                }
-               if (!((port->p_type&PORT_CLASS_MASK) != PORT_CLASS_mISDN))
+               if ((port->p_type&PORT_CLASS_MASK) != PORT_CLASS_mISDN)
                {
                        PERROR("join %d has port %d not of mISDN type. This shall not happen.\n", joinremote->j_serial, port->p_serial);
                }
@@ -1424,13 +1121,59 @@ void message_bchannel_from_join(class JoinRemote *joinremote, int type, unsigned
                i = isdnport->p_m_b_index;
                chan_trace_header(mISDNport, isdnport, "MESSAGE_BCHANNEL (from remote application)", DIRECTION_NONE);
                add_trace("type", NULL, "export request");
+               end_trace();
                isdnport->p_m_remote_ref = joinremote->j_serial;
                isdnport->p_m_remote_id = joinremote->j_remote_id;
                if (mISDNport && i>=0)
                {
                        bchannel_event(mISDNport, i, B_EVENT_EXPORTREQUEST);
                }
+               break;
+
+               case BCHANNEL_RELEASE:
+               /* find the port object for the join object ref */
+               if (!(epoint = find_epoint_id(joinremote->j_epoint_id)))
+               {
+                       PDEBUG(DEBUG_BCHANNEL, "join %d has no endpoint (anymore)\n", joinremote->j_serial);
+                       return;
+               }
+               if (!epoint->ep_portlist)
+               {
+                       PDEBUG(DEBUG_BCHANNEL, "join %d has no port (anymore in portlist)\n", joinremote->j_serial);
+                       return;
+               }
+               if (epoint->ep_portlist->next)
+               {
+                       PERROR("join %d has enpoint %d with more than one port. this shall not happen to remote joins.\n", joinremote->j_serial, epoint->ep_serial);
+               }
+               if (!(port = find_port_id(epoint->ep_portlist->port_id)))
+               {
+                       PDEBUG(DEBUG_BCHANNEL, "join %d has no port (anymore as object)\n", joinremote->j_serial);
+                       return;
+               }
+               if ((port->p_type&PORT_CLASS_MASK) != PORT_CLASS_mISDN)
+               {
+                       PERROR("join %d has port %d not of mISDN type. This shall not happen.\n", joinremote->j_serial, port->p_serial);
+               }
+               isdnport = (class PmISDN *)port;
+
+               /* release */
+               if (!isdnport->p_m_remote_id)
+               {
+                       PERROR("join %d recevied bchannel release from remote, but channel is already released.\n", joinremote->j_serial);
+                       break;
+               }
+               mISDNport = isdnport->p_m_mISDNport;
+               i = isdnport->p_m_b_index;
+               chan_trace_header(mISDNport, isdnport, "MESSAGE_BCHANNEL (from remote application)", DIRECTION_NONE);
+               add_trace("type", NULL, "export request");
                end_trace();
+               isdnport->p_m_remote_ref = 0;
+               isdnport->p_m_remote_id = 0;
+               if (mISDNport && i>=0)
+               {
+                       bchannel_event(mISDNport, i, B_EVENT_IMPORTREQUEST);
+               }
                break;
 
                case BCHANNEL_ASSIGN_ACK:
@@ -1443,11 +1186,7 @@ void message_bchannel_from_join(class JoinRemote *joinremote, int type, unsigned
                        ii = mISDNport->b_num;
                        while(i < ii)
                        {
-#ifdef SOCKET_MISDN
                                if ((unsigned long)(mISDNport->portnum<<8)+i+1+(i>=15) == handle)
-#else
-                               if (mISDNport->b_addr[i] == handle)
-#endif
                                        break;
                                i++;
                        }
@@ -1465,9 +1204,9 @@ void message_bchannel_from_join(class JoinRemote *joinremote, int type, unsigned
                /* set */
                chan_trace_header(mISDNport, mISDNport->b_port[i], "MESSAGE_BCHANNEL (from remote application)", DIRECTION_NONE);
                add_trace("type", NULL, (type==BCHANNEL_ASSIGN_ACK)?"assign_ack":"remove_ack");
+               end_trace();
                if (mISDNport && i>=0)
                        bchannel_event(mISDNport, i, (type==BCHANNEL_ASSIGN_ACK)?B_EVENT_EXPORTED:B_EVENT_IMPORTED);
-               end_trace();
                break;
                default:
                PERROR("received wrong bchannel message type %d from remote\n", type);
@@ -1569,15 +1308,9 @@ int PmISDN::handler(void)
                 && (p_state==PORT_STATE_CONNECT || p_m_mISDNport->tones))
                {
                        int tosend = ISDN_LOAD - p_m_load, length; 
-#ifdef SOCKET_MISDN
                        unsigned char buf[MISDN_HEADER_LEN+tosend];
                        struct mISDNhead *frm = (struct mISDNhead *)buf;
                        unsigned char *p = buf+MISDN_HEADER_LEN;
-#else
-                       unsigned char buf[mISDN_HEADER_LEN+tosend];
-                       iframe_t *frm = (iframe_t *)buf;
-                       unsigned char *p = buf+mISDN_HEADER_LEN;
-#endif
 
                        /* copy crypto loops */
                        while (p_m_crypt_msg_loops && tosend)
@@ -1615,20 +1348,11 @@ int PmISDN::handler(void)
                        /* send data */
                        if (p_m_mISDNport->b_state[p_m_b_index] == B_STATE_ACTIVE && ISDN_LOAD-p_m_load-tosend > 0)
                        {
-#ifdef SOCKET_MISDN
                                frm->prim = PH_DATA_REQ;
                                frm->id = 0;
                                ret = sendto(p_m_mISDNport->b_socket[p_m_b_index], buf, MISDN_HEADER_LEN+ISDN_LOAD-p_m_load-tosend, 0, NULL, 0);
                                if (ret <= 0)
                                        PERROR("Failed to send to socket %d (samples = %d)\n", p_m_mISDNport->b_socket[p_m_b_index], ISDN_LOAD-p_m_load-tosend);
-#else
-                               frm->prim = DL_DATA | REQUEST; 
-                               frm->addr = p_m_mISDNport->b_addr[p_m_b_index] | FLG_MSG_DOWN;
-                               frm->dinfo = 0;
-                               frm->len = ISDN_LOAD - p_m_load - tosend;
-                               if (frm->len)
-                                       mISDN_write(mISDNdevice, frm, mISDN_HEADER_LEN+frm->len, TIMEOUT_1SEC);
-#endif
                        }
                        p_m_load += ISDN_LOAD - p_m_load - tosend;
                }
@@ -1658,28 +1382,16 @@ int PmISDN::handler(void)
 /*
  * whenever we get audio data from bchannel, we process it here
  */
-#ifdef SOCKET_MISDN
 void PmISDN::bchannel_receive(struct mISDNhead *hh, unsigned char *data, int len)
 {
        unsigned long cont = *((unsigned long *)data);
-#else
-void PmISDN::bchannel_receive(iframe_t *frm)
-{
-       int len = frm->len;
-       unsigned long cont = *((unsigned long *)&frm->data.p);
-       unsigned char *data =(unsigned char *)&frm->data.p;
-#endif
        unsigned char *data_temp;
        unsigned long length_temp;
        struct lcr_msg *message;
        unsigned char *p;
        int l;
 
-#ifdef SOCKET_MISDN
        if (hh->prim == PH_CONTROL_IND)
-#else
-       if (frm->prim == (PH_CONTROL | INDICATION))
-#endif
        {
                if (len < 4)
                {
@@ -1699,11 +1411,7 @@ void PmISDN::bchannel_receive(iframe_t *frm)
                }
                switch(cont)
                {
-#ifdef SOCKET_MISDN
                        case DSP_BF_REJECT:
-#else
-                       case BF_REJECT:
-#endif
                        chan_trace_header(p_m_mISDNport, this, "BCHANNEL control", DIRECTION_IN);
                        add_trace("DSP-CRYPT", NULL, "error");
                        end_trace();
@@ -1713,11 +1421,7 @@ void PmISDN::bchannel_receive(iframe_t *frm)
                        message_put(message);
                        break;
 
-#ifdef SOCKET_MISDN
                        case DSP_BF_ACCEPT:
-#else
-                       case BF_ACCEPT:
-#endif
                        chan_trace_header(p_m_mISDNport, this, "BCHANNEL control", DIRECTION_IN);
                        add_trace("DSP-CRYPT", NULL, "ok");
                        end_trace();
@@ -1734,49 +1438,17 @@ void PmISDN::bchannel_receive(iframe_t *frm)
                }
                return;
        }
-#ifdef SOCKET_MISDN
        if (hh->prim == PH_CONTROL_IND)
        {
                switch(hh->id)
-#else
-       if (frm->prim == (PH_SIGNAL | INDICATION)
-        || frm->prim == (PH_CONTROL | INDICATION))
-       {
-               switch(frm->dinfo)
-#endif
                {
-#ifndef OLD_MISDN
-#ifndef SOCKET_MISDN
-                       case CMX_TX_DATA:
-                       if (!p_m_txdata)
-                       {
-                               /* if tx is off, it may happen that fifos send us pending informations, we just ignore them */
-                               PDEBUG(DEBUG_BCHANNEL, "PmISDN(%s) ignoring tx data, because 'txdata' is turned off\n", p_name);
-                               return;
-                       }
-                       /* see below (same condition) */
-                       if (p_state!=PORT_STATE_CONNECT
-                                && !p_m_mISDNport->tones)
-                               break;
-//                     printf(".");fflush(stdout);return;
-                       if (p_record)
-                               record(data, len, 1); // from up
-                       break;
-#endif
-#endif
-
                        default:
                        chan_trace_header(p_m_mISDNport, this, "BCHANNEL control", DIRECTION_IN);
-#ifdef SOCKET_MISDN
                        add_trace("unknown", NULL, "0x%x", hh->id);
-#else
-                       add_trace("unknown", NULL, "0x%x", frm->dinfo);
-#endif
                        end_trace();
                }
                return;
        }
-#ifdef SOCKET_MISDN
        if (hh->prim == PH_DATA_REQ || hh->prim == DL_DATA_REQ)
        {
                if (!p_m_txdata)
@@ -1797,23 +1469,26 @@ void PmISDN::bchannel_receive(iframe_t *frm)
        if (hh->prim != PH_DATA_IND && hh->prim != DL_DATA_IND)
        {
                PERROR("Bchannel received unknown primitve: 0x%x\n", hh->prim);
-#else
-       if (frm->prim != (PH_DATA | INDICATION) && frm->prim != (DL_DATA | INDICATION))
-       {
-               PERROR("Bchannel received unknown primitve: 0x%x\n", frm->prim);
-#endif
                return;
        }
+
        /* calls will not process any audio data unless
-        * the call is connected OR interface features audio during call setup.
+        * the call is connected OR tones feature is enabled.
         */
-//printf("%d -> %d prim=%x joindata=%d tones=%d\n", p_serial, ACTIVE_EPOINT(p_epointlist), frm->prim, p_m_joindata, p_m_mISDNport->earlyb);    
 #ifndef DEBUG_COREBRIDGE
        if (p_state!=PORT_STATE_CONNECT
         && !p_m_mISDNport->tones)
                return;
 #endif
 
+#if 0
+       /* the bearer capability must be audio in order to send and receive
+        * audio prior or after connect.
+        */
+       if (!(p_bearerinfo.capability&CLASS_CAPABILITY_AUDIO) && p_state!=PORT_STATE_CONNECT)
+               return;
+#endif
+
        /* if rx is off, it may happen that fifos send us pending informations, we just ignore them */
        if (p_m_rxoff)
        {
@@ -1870,11 +1545,7 @@ void PmISDN::set_echotest(int echo)
                PDEBUG(DEBUG_ISDN, "we set echo to echo=%d.\n", p_m_echo);
                if (p_m_b_channel)
                        if (p_m_mISDNport->b_state[p_m_b_index] == B_STATE_ACTIVE)
-#ifdef SOCKET_MISDN
                                ph_control(p_m_mISDNport, this, p_m_mISDNport->b_socket[p_m_b_index], p_m_echo?DSP_ECHO_ON:DSP_ECHO_OFF, 0, "DSP-ECHO", p_m_echo);
-#else
-                               ph_control(p_m_mISDNport, this, p_m_mISDNport->b_addr[p_m_b_index], p_m_echo?CMX_ECHO_ON:CMX_ECHO_OFF, 0, "DSP-ECHO", p_m_echo);
-#endif
        }
 }
 
@@ -1903,11 +1574,7 @@ void PmISDN::set_tone(char *dir, char *tone)
                if (p_m_mISDNport->b_state[p_m_b_index] == B_STATE_ACTIVE)
                {
                        PDEBUG(DEBUG_ISDN, "we reset tone from id=%d to OFF.\n", p_m_tone);
-#ifdef SOCKET_MISDN
                        ph_control(p_m_mISDNport, this, p_m_mISDNport->b_socket[p_m_b_index], DSP_TONE_PATT_OFF, 0, "DSP-TONE", 0);
-#else
-                       ph_control(p_m_mISDNport, this, p_m_mISDNport->b_addr[p_m_b_index], TONE_PATT_OFF, 0, "DSP-TONE", 0);
-#endif
                }
                p_m_tone = 0;
                Port::set_tone(dir, tone);
@@ -1989,11 +1656,7 @@ void PmISDN::set_tone(char *dir, char *tone)
                PDEBUG(DEBUG_ISDN, "we set tone to id=%d.\n", p_m_tone);
                if (p_m_b_index > -1)
                if (p_m_mISDNport->b_state[p_m_b_index] == B_STATE_ACTIVE)
-#ifdef SOCKET_MISDN
                        ph_control(p_m_mISDNport, this, p_m_mISDNport->b_socket[p_m_b_index], p_m_tone?DSP_TONE_PATT_ON:DSP_TONE_PATT_OFF, p_m_tone, "DSP-TONE", p_m_tone);
-#else
-                       ph_control(p_m_mISDNport, this, p_m_mISDNport->b_addr[p_m_b_index], p_m_tone?TONE_PATT_ON:TONE_PATT_OFF, p_m_tone, "DSP-TONE", p_m_tone);
-#endif
        }
        /* turn user-space tones off in cases of no tone OR dsp tone */
        Port::set_tone("",NULL);
@@ -2013,11 +1676,7 @@ void PmISDN::message_mISDNsignal(unsigned long epoint_id, int message_id, union
                        PDEBUG(DEBUG_BCHANNEL, "we change tx-volume to shift=%d.\n", p_m_tx_gain);
                        if (p_m_b_index > -1)
                        if (p_m_mISDNport->b_state[p_m_b_index] == B_STATE_ACTIVE)
-#ifdef SOCKET_MISDN
                                ph_control(p_m_mISDNport, this, p_m_mISDNport->b_socket[p_m_b_index], DSP_VOL_CHANGE_TX, p_m_tx_gain, "DSP-TX_GAIN", p_m_tx_gain);
-#else
-                               ph_control(p_m_mISDNport, this, p_m_mISDNport->b_addr[p_m_b_index], VOL_CHANGE_TX, p_m_tx_gain, "DSP-TX_GAIN", p_m_tx_gain);
-#endif
                } else
                        PDEBUG(DEBUG_BCHANNEL, "we already have tx-volume shift=%d.\n", p_m_rx_gain);
                if (p_m_rx_gain != param->mISDNsignal.rx_gain)
@@ -2026,11 +1685,7 @@ void PmISDN::message_mISDNsignal(unsigned long epoint_id, int message_id, union
                        PDEBUG(DEBUG_BCHANNEL, "we change rx-volume to shift=%d.\n", p_m_rx_gain);
                        if (p_m_b_index > -1)
                        if (p_m_mISDNport->b_state[p_m_b_index] == B_STATE_ACTIVE)
-#ifdef SOCKET_MISDN
                                ph_control(p_m_mISDNport, this, p_m_mISDNport->b_socket[p_m_b_index], DSP_VOL_CHANGE_RX, p_m_rx_gain, "DSP-RX_GAIN", p_m_rx_gain);
-#else
-                               ph_control(p_m_mISDNport, this, p_m_mISDNport->b_addr[p_m_b_index], VOL_CHANGE_RX, p_m_rx_gain, "DSP-RX_GAIN", p_m_rx_gain);
-#endif
                } else
                        PDEBUG(DEBUG_BCHANNEL, "we already have rx-volume shift=%d.\n", p_m_rx_gain);
                break;
@@ -2044,11 +1699,7 @@ void PmISDN::message_mISDNsignal(unsigned long epoint_id, int message_id, union
                        PDEBUG(DEBUG_BCHANNEL, "we change conference to conf=%d.\n", p_m_conf);
                        if (p_m_b_index > -1)
                        if (p_m_mISDNport->b_state[p_m_b_index] == B_STATE_ACTIVE)
-#ifdef SOCKET_MISDN
                                ph_control(p_m_mISDNport, this, p_m_mISDNport->b_socket[p_m_b_index], (p_m_conf)?DSP_CONF_JOIN:DSP_CONF_SPLIT, p_m_conf, "DSP-CONF", p_m_conf);
-#else
-                               ph_control(p_m_mISDNport, this, p_m_mISDNport->b_addr[p_m_b_index], (p_m_conf)?CMX_CONF_JOIN:CMX_CONF_SPLIT, p_m_conf, "DSP-CONF", p_m_conf);
-#endif
                } else
                        PDEBUG(DEBUG_BCHANNEL, "we already have conf=%d.\n", p_m_conf);
                /* we must set, even if currently tone forbids conf */
@@ -2070,15 +1721,9 @@ void PmISDN::message_mISDNsignal(unsigned long epoint_id, int message_id, union
                {
                        p_m_delay = param->mISDNsignal.delay;
                        PDEBUG(DEBUG_BCHANNEL, "we change delay mode to delay=%d.\n", p_m_delay);
-#ifndef OLD_MISDN
                        if (p_m_b_index > -1)
                        if (p_m_mISDNport->b_state[p_m_b_index] == B_STATE_ACTIVE)
-#ifdef SOCKET_MISDN
                                ph_control(p_m_mISDNport, this, p_m_mISDNport->b_socket[p_m_b_index], p_m_delay?DSP_DELAY:DSP_JITTER, p_m_delay, "DSP-DELAY", p_m_delay);
-#else
-                               ph_control(p_m_mISDNport, this, p_m_mISDNport->b_addr[p_m_b_index], p_m_delay?CMX_DELAY:CMX_JITTER, p_m_delay, "DSP-DELAY", p_m_delay);
-#endif
-#endif
                } else
                        PDEBUG(DEBUG_BCHANNEL, "we already have delay=%d.\n", p_m_delay);
                break;
@@ -2111,11 +1756,7 @@ void PmISDN::message_crypt(unsigned long epoint_id, int message_id, union parame
                PDEBUG(DEBUG_BCHANNEL, "we set encryption to crypt=%d. (0 means OFF)\n", p_m_crypt);
                if (p_m_b_index > -1)
                if (p_m_mISDNport->b_state[p_m_b_index] == B_STATE_ACTIVE)
-#ifdef SOCKET_MISDN
                        ph_control_block(p_m_mISDNport, this, p_m_mISDNport->b_socket[p_m_b_index], p_m_crypt?DSP_BF_ENABLE_KEY:DSP_BF_DISABLE, p_m_crypt_key, p_m_crypt_key_len, "DSP-CRYPT", p_m_crypt_key_len);
-#else
-                       ph_control_block(p_m_mISDNport, this, p_m_mISDNport->b_addr[p_m_b_index], p_m_crypt?BF_ENABLE_KEY:BF_DISABLE, p_m_crypt_key, p_m_crypt_key_len, "DSP-CRYPT", p_m_crypt_key_len);
-#endif
                break;
 
                case CC_DACT_REQ:            /* deactivate session encryption */
@@ -2146,11 +1787,7 @@ void PmISDN::message_crypt(unsigned long epoint_id, int message_id, union parame
                if (p_m_txmix && p_m_b_index>=0)
                {
                        PDEBUG(DEBUG_BCHANNEL, "for sending CR_MESSAGE_REQ, we reset txmix from txmix=%d.\n", p_m_txmix);
-#ifdef SOCKET_MISDN
                        ph_control(p_m_mISDNport, this, p_mISDNport->b_socket[p_m_b_index], DSP_MIX_OFF, 0, "DSP-TXMIX", 0);
-#else
-                       ph_control(p_m_mISDNport, this, p_mISDNport->b_addr[p_m_b_index], CMX_MIX_OFF, 0, "DSP-TXMIX", 0);
-#endif
                }
 #endif
                break;
@@ -2193,7 +1830,6 @@ int PmISDN::message_epoint(unsigned long epoint_id, int message_id, union parame
 /*
  * main loop for processing messages from mISDN
  */
-#ifdef SOCKET_MISDN
 int mISDN_handler(void)
 {
        int ret, work = 0;
@@ -2452,468 +2088,7 @@ int mISDN_handler(void)
        /* if we received at least one b-frame, we will return 1 */
        return(work);
 }
-#else
-int mISDN_handler(void)
-{
-       int ret;
-       struct mISDNport *mISDNport;
-       class PmISDN *isdnport;
-       int i;
-       msg_t *msg;
-       iframe_t *frm;
-       msg_t *dmsg;
-       mISDNuser_head_t *hh;
-       net_stack_t *nst;
-
-       /* the que avoids loopbacks when replying to stack after receiving
-         * from stack. */
-       mISDNport = mISDNport_first;
-       while(mISDNport)
-       {
-               /* process turning on/off rx */
-               i = 0;
-               while(i < mISDNport->b_num)
-               {
-                       /* process timer events for bchannel handling */
-                       if (mISDNport->b_timer[i])
-                       {
-                               if (mISDNport->b_timer[i] <= now_d)
-                                       bchannel_event(mISDNport, i, B_EVENT_TIMEOUT);
-                       }
-                       isdnport=mISDNport->b_port[i];
-                       if (isdnport)
-                       {
-                               /* call bridges in user space OR crypto OR recording */
-                               if (isdnport->p_m_joindata || isdnport->p_m_crypt_msg_loops || isdnport->p_m_crypt_listen || isdnport->p_record)
-                               {
-                                       /* rx IS required */
-                                       if (isdnport->p_m_rxoff)
-                                       {
-                                               /* turn on RX */
-                                               isdnport->p_m_rxoff = 0;
-                                               PDEBUG(DEBUG_BCHANNEL, "%s: receive data is required, so we turn them on\n", __FUNCTION__);
-                                               if (mISDNport->b_port[i] && mISDNport->b_state[i] == B_STATE_ACTIVE)
-                                                       ph_control(mISDNport, isdnport, mISDNport->b_addr[isdnport->p_m_b_index], CMX_RECEIVE_ON, 0, "DSP-RXOFF", 0);
-                                               return(1);
-                                       }
-                               } else
-                               {
-                                       /* rx NOT required */
-                                       if (!isdnport->p_m_rxoff)
-                                       {
-                                               /* turn off RX */
-                                               isdnport->p_m_rxoff = 1;
-                                               PDEBUG(DEBUG_BCHANNEL, "%s: receive data is not required, so we turn them off\n", __FUNCTION__);
-                                               if (mISDNport->b_port[i] && mISDNport->b_state[i] == B_STATE_ACTIVE)
-                                                       ph_control(mISDNport, isdnport, mISDNport->b_addr[isdnport->p_m_b_index], CMX_RECEIVE_OFF, 0, "DSP-RXOFF", 1);
-                                               return(1);
-                                       }
-                               }
-                               /* recording */
-                               if (isdnport->p_record)
-                               {
-                                       /* txdata IS required */
-                                       if (!isdnport->p_m_txdata)
-                                       {
-                                               /* turn on RX */
-                                               isdnport->p_m_txdata = 1;
-                                               PDEBUG(DEBUG_BCHANNEL, "%s: transmit data is required, so we turn them on\n", __FUNCTION__);
-#ifndef OLD_MISDN
-                                               if (mISDNport->b_port[i] && mISDNport->b_state[i] == B_STATE_ACTIVE)
-                                                       ph_control(mISDNport, isdnport, mISDNport->b_addr[isdnport->p_m_b_index], CMX_TXDATA_ON, 0, "DSP-TXDATA", 1);
-#endif
-                                               return(1);
-                                       }
-                               } else
-                               {
-                                       /* txdata NOT required */
-                                       if (isdnport->p_m_txdata)
-                                       {
-                                               /* turn off RX */
-                                               isdnport->p_m_txdata = 0;
-                                               PDEBUG(DEBUG_BCHANNEL, "%s: transmit data is not required, so we turn them off\n", __FUNCTION__);
-#ifndef OLD_MISDN
-                                               if (mISDNport->b_port[i] && mISDNport->b_state[i] == B_STATE_ACTIVE)
-                                                       ph_control(mISDNport, isdnport, mISDNport->b_addr[isdnport->p_m_b_index], CMX_TXDATA_OFF, 0, "DSP-TXDATA", 0);
-#endif
-                                               return(1);
-                                       }
-                               }
-                       }
-                       i++;
-               }
-#if 0
-               if (mISDNport->l1timeout && now>mISDNport->l1timeout)
-               { ---}
-                       PDEBUG(DEBUG_ISDN, "the L1 establish timer expired, we release all pending messages.\n", mISDNport->portnum);
-                       mISDNport->l1timeout = 0;
-#endif
-
-               if (mISDNport->l2establish)
-               {
-                       if (now-mISDNport->l2establish > 5)
-                       {
-                               mISDNport->l2establish = 0;
-                               if (mISDNport->l2hold && (mISDNport->ptp || !mISDNport->ntmode))
-                               {
-                                       if (mISDNport->ntmode)
-                                       {
-                                               PDEBUG(DEBUG_ISDN, "the L2 establish timer expired, we try to establish the link NT portnum=%d.\n", mISDNport->portnum);
-                                               time(&mISDNport->l2establish);
-                                               /* establish */
-                                               dmsg = create_l2msg(DL_ESTABLISH | REQUEST, 0, 0);
-                                               if (mISDNport->nst.manager_l3(&mISDNport->nst, dmsg))
-                                                       free_msg(dmsg);
-                                       } else {
-                                               iframe_t act;
-
-                                               PDEBUG(DEBUG_ISDN, "the L2 establish timer expired, we try to establish the link TE portnum=%d.\n", mISDNport->portnum);
-                                               time(&mISDNport->l2establish);
-                                               /* establish */
-                                               act.prim = DL_ESTABLISH | REQUEST; 
-                                               act.addr = (mISDNport->upper_id & ~LAYER_ID_MASK) | 3 | FLG_MSG_DOWN;
-                                               act.dinfo = 0;
-                                               act.len = 0;
-                                               mISDN_write(mISDNdevice, &act, mISDN_HEADER_LEN+act.len, TIMEOUT_1SEC);
-                                       }
-                                       l1l2l3_trace_header(mISDNport, NULL, L2_ESTABLISH_REQ, DIRECTION_OUT);
-                                       add_trace("tei", NULL, "%d", 0);
-                                       end_trace();
-                                       time(&mISDNport->l2establish);
-                                       return(1);
-                               }
-                       }
-               }
-               if ((dmsg = msg_dequeue(&mISDNport->downqueue)))
-               {
-                       if (mISDNport->ntmode)
-                       {
-                               hh = (mISDNuser_head_t *)dmsg->data;
-                               PDEBUG(DEBUG_ISDN, "sending queued NT l3-down-message: prim(0x%x) dinfo(0x%x) msg->len(%d)\n", hh->prim, hh->dinfo, dmsg->len);
-                               if (mISDNport->nst.manager_l3(&mISDNport->nst, dmsg))
-                                       free_msg(dmsg);
-                       } else
-                       {
-                               frm = (iframe_t *)dmsg->data;
-                               frm->addr = mISDNport->upper_id | FLG_MSG_DOWN;
-                               frm->len = (dmsg->len) - mISDN_HEADER_LEN;
-                               PDEBUG(DEBUG_ISDN, "sending queued TE l3-down-message: prim(0x%x) dinfo(0x%x) msg->len(%d)\n", frm->prim, frm->dinfo, dmsg->len);
-                               mISDN_write(mISDNdevice, dmsg->data, dmsg->len, TIMEOUT_1SEC);
-                               free_msg(dmsg);
-                       }
-                       return(1);
-               }
-               mISDNport = mISDNport->next;
-       } 
-
-       /* no device, no read */
-       if (mISDNdevice < 0)
-               return(0);
-
-       /* get message from kernel */
-       if (!(msg = alloc_msg(MAX_MSG_SIZE)))
-               return(1);
-       ret = mISDN_read(mISDNdevice, msg->data, MAX_MSG_SIZE, 0);
-       if (ret < 0)
-       {
-               free_msg(msg);
-               if (errno == EAGAIN)
-                       return(0);
-               FATAL("Failed to do mISDN_read()\n");
-       }
-       if (!ret)
-       {
-               free_msg(msg);
-//             printf("%s: ERROR: mISDN_read() returns nothing\n");
-               return(0);
-       }
-       msg->len = ret;
-       frm = (iframe_t *)msg->data;
-
-       /* global prim */
-       switch(frm->prim)
-       {
-               case MGR_DELLAYER | CONFIRM:
-               case MGR_INITTIMER | CONFIRM:
-               case MGR_ADDTIMER | CONFIRM:
-               case MGR_DELTIMER | CONFIRM:
-               case MGR_REMOVETIMER | CONFIRM:
-               free_msg(msg);
-               return(1);
-       }
-
-       /* handle timer events from mISDN for NT-stack
-        * note: they do not associate with a stack */
-       if (frm->prim == (MGR_TIMER | INDICATION))
-       {
-               itimer_t *it;
-
-               /* find mISDNport */
-               mISDNport = mISDNport_first;
-               while(mISDNport)
-               {
-                       /* nt mode only */
-                       if (mISDNport->ntmode)
-                       {
-                               it = mISDNport->nst.tlist;
-                               /* find timer */
-                               while(it)
-                               {
-                                       if (it->id == (int)frm->addr)
-                                               break;
-                                       it = it->next;
-                               }
-                               if (it)
-                                       break;
-                       }
-                       mISDNport = mISDNport->next;
-               }
-               if (mISDNport)
-               {
-                       mISDN_write_frame(mISDNdevice, msg->data, mISDNport->upper_id | FLG_MSG_DOWN,
-                               MGR_TIMER | RESPONSE, 0, 0, NULL, TIMEOUT_1SEC);
-
-                       PDEBUG(DEBUG_ISDN, "timer-indication port %d it=%p\n", mISDNport->portnum, it);
-                       test_and_clear_bit(FLG_TIMER_RUNING, (long unsigned int *)&it->Flags);
-                       ret = it->function(it->data);
-               } else
-               {
-                       PDEBUG(DEBUG_ISDN, "timer-indication not handled\n");
-               }
-               goto out;
-       }
-
-       /* find the mISDNport that belongs to the stack */
-       mISDNport = mISDNport_first;
-       while(mISDNport)
-       {
-               if ((frm->addr&MASTER_ID_MASK) == (unsigned int)(mISDNport->upper_id&MASTER_ID_MASK))
-                       break;
-               mISDNport = mISDNport->next;
-       } 
-       if (!mISDNport)
-       {
-               PERROR("message belongs to no mISDNport: prim(0x%x) addr(0x%x) msg->len(%d)\n", frm->prim, frm->addr, msg->len);
-               // show a list of all mISDNports and their address
-#if 0
-               mISDNport = mISDNport_first;
-               while(mISDNport)
-               {
-                       PERROR(" port %s  %x -> %x\n", mISDNport->name, (frm->addr&MASTER_ID_MASK), (unsigned int)(mISDNport->upper_id&MASTER_ID_MASK));
-                       mISDNport = mISDNport->next;
-               } 
-#endif
-               goto out;
-       }
-
-       /* master stack */
-       if (!(frm->addr&FLG_CHILD_STACK))
-       {
-               /* d-message */
-               switch(frm->prim)
-               {
-                       case MGR_SHORTSTATUS | INDICATION:
-                       case MGR_SHORTSTATUS | CONFIRM:
-                       switch(frm->dinfo) {
-                               case SSTATUS_L1_ACTIVATED:
-                               l1l2l3_trace_header(mISDNport, NULL, L1_ACTIVATE_REQ | (frm->prim & 0x3), DIRECTION_IN);
-                               end_trace();
-                               goto ss_act;
-                               case SSTATUS_L1_DEACTIVATED:
-                               l1l2l3_trace_header(mISDNport, NULL, L1_DEACTIVATE_REQ | (frm->prim & 0x3), DIRECTION_IN);
-                               end_trace();
-                               goto ss_deact;
-                               case SSTATUS_L2_ESTABLISHED:
-                               l1l2l3_trace_header(mISDNport, NULL, L2_ESTABLISH_REQ | (frm->prim & 0x3), DIRECTION_IN);
-                               end_trace();
-                               goto ss_estab;
-                               case SSTATUS_L2_RELEASED:
-                               l1l2l3_trace_header(mISDNport, NULL, L2_RELEASE_REQ | (frm->prim & 0x3), DIRECTION_IN);
-                               end_trace();
-                               goto ss_rel;
-                       }
-                       break;
-
-                       case PH_ACTIVATE | CONFIRM:
-                       case PH_ACTIVATE | INDICATION:
-                       l1l2l3_trace_header(mISDNport, NULL, L1_ACTIVATE_REQ | (frm->prim & 0x3), DIRECTION_IN);
-                       end_trace();
-                       if (mISDNport->ntmode)
-                       {
-                               mISDNport->l1link = 1;
-                               setup_queue(mISDNport, 1);
-                               goto l1_msg;
-                       }
-                       ss_act:
-                       mISDNport->l1link = 1;
-                       setup_queue(mISDNport, 1);
-                       break;
-
-                       case PH_DEACTIVATE | CONFIRM:
-                       case PH_DEACTIVATE | INDICATION:
-                       l1l2l3_trace_header(mISDNport, NULL, L1_DEACTIVATE_REQ | (frm->prim & 0x3), DIRECTION_IN);
-                       end_trace();
-                       if (mISDNport->ntmode)
-                       {
-                               mISDNport->l1link = 0;
-                               setup_queue(mISDNport, 0);
-                               goto l1_msg;
-                       }
-                       ss_deact:
-                       mISDNport->l1link = 0;
-                       setup_queue(mISDNport, 0);
-                       break;
-
-                       case PH_CONTROL | CONFIRM:
-                       case PH_CONTROL | INDICATION:
-                       PDEBUG(DEBUG_ISDN, "Received PH_CONTROL for port %d (%s).\n", mISDNport->portnum, mISDNport->ifport->interface->name);
-                       break;
-
-                       case DL_ESTABLISH | INDICATION:
-                       case DL_ESTABLISH | CONFIRM:
-                       l1l2l3_trace_header(mISDNport, NULL, DL_ESTABLISH_REQ | (frm->prim & 0x3), DIRECTION_IN);
-                       end_trace();
-                       if (!mISDNport->ntmode) break; /* !!!!!!!!!!!!!!!! */
-                       ss_estab:
-                       if (!mISDNport->ntmode || mISDNport->ptp)
-                       {
-                               if (mISDNport->l2establish)
-                               {
-                                       mISDNport->l2establish = 0;
-                                       PDEBUG(DEBUG_ISDN, "the link became active before l2establish timer expiry.\n");
-                               }
-                               mISDNport->l2link = 1;
-                       }
-                       break;
-
-                       case DL_RELEASE | INDICATION:
-                       case DL_RELEASE | CONFIRM:
-                       l1l2l3_trace_header(mISDNport, NULL, DL_RELEASE_REQ | (frm->prim & 0x3), DIRECTION_IN);
-                       end_trace();
-                       if (!mISDNport->ntmode) break; /* !!!!!!!!!!!!!!!! */
-                       ss_rel:
-                       if (!mISDNport->ntmode || mISDNport->ptp)
-                       {
-                               mISDNport->l2link = 0;
-                               if (mISDNport->l2hold)
-                               {
-                                       time(&mISDNport->l2establish);
-                                       PDEBUG(DEBUG_ISDN, "because we are ptp, we set a l2establish timer.\n");
-                               }
-                       }
-                       break;
-
-                       default:
-                       l1_msg:
-                       PDEBUG(DEBUG_STACK, "GOT d-msg from %s port %d prim 0x%x dinfo 0x%x addr 0x%x\n", (mISDNport->ntmode)?"NT":"TE", mISDNport->portnum, frm->prim, frm->dinfo, frm->addr);
-                       if (frm->dinfo==(signed long)0xffffffff && frm->prim==(PH_DATA|CONFIRM))
-                       {
-                               PERROR("SERIOUS BUG, dinfo == 0xffffffff, prim == PH_DATA | CONFIRM !!!!\n");
-                       }
-                       /* d-message */
-                       if (mISDNport->ntmode)
-                       {
-                               /* l1-data enters the nt-mode library */
-                               nst = &mISDNport->nst;
-                               if (nst->l1_l2(nst, msg))
-                                       free_msg(msg);
-                               return(1);
-                       } else
-                       {
-                               /* l3-data is sent to pbx */
-                               if (stack2manager_te(mISDNport, msg))
-                                       free_msg(msg);
-                               return(1);
-                       }
-               }
-       } else
-       /* child stack */
-       {
-               /* b-message */
-               switch(frm->prim)
-               {
-                       /* we don't care about confirms, we use rx data to sync tx */
-                       case PH_DATA | CONFIRM:
-                       case DL_DATA | CONFIRM:
-                       break;
-
-                       /* we receive audio data, we respond to it AND we send tones */
-                       case PH_DATA | INDICATION:
-                       case DL_DATA | INDICATION:
-                       case PH_CONTROL | INDICATION:
-                       case PH_SIGNAL | INDICATION:
-                       i = 0;
-                       while(i < mISDNport->b_num)
-                       {
-                               if ((unsigned int)(mISDNport->b_addr[i]&STACK_ID_MASK) == (frm->addr&STACK_ID_MASK))
-                                       break;
-                               i++;
-                       }
-                       if (i == mISDNport->b_num)
-                       {
-                               PERROR("unhandled b-message (prim 0x%x address 0x%x).\n", frm->prim, frm->addr);
-                               break;
-                       }
-                       if (mISDNport->b_port[i])
-                       {
-//PERROR("port sech: %s data\n", mISDNport->b_port[i]->p_name);
-                               mISDNport->b_port[i]->bchannel_receive(frm);
-                       } else
-                               PDEBUG(DEBUG_BCHANNEL, "b-channel is not associated to an ISDNPort (address 0x%x), ignoring.\n", frm->addr);
-                       break;
-
-                       case PH_ACTIVATE | INDICATION:
-                       case DL_ESTABLISH | INDICATION:
-                       case PH_ACTIVATE | CONFIRM:
-                       case DL_ESTABLISH | CONFIRM:
-                       PDEBUG(DEBUG_BCHANNEL, "DL_ESTABLISH confirm: bchannel is now activated (address 0x%x).\n", frm->addr);
-                       i = 0;
-                       while(i < mISDNport->b_num)
-                       {
-                               if ((unsigned int)(mISDNport->b_addr[i]&STACK_ID_MASK) == (frm->addr&STACK_ID_MASK))
-                                       break;
-                               i++;
-                       }
-                       if (i == mISDNport->b_num)
-                       {
-                               PERROR("unhandled b-establish (prim 0x%x address 0x%x).\n", frm->prim, frm->addr);
-                               break;
-                       }
-                       bchannel_event(mISDNport, i, B_EVENT_ACTIVATED);
-                       break;
-
-                       case PH_DEACTIVATE | INDICATION:
-                       case DL_RELEASE | INDICATION:
-                       case PH_DEACTIVATE | CONFIRM:
-                       case DL_RELEASE | CONFIRM:
-                       PDEBUG(DEBUG_BCHANNEL, "DL_RELEASE confirm: bchannel is now de-activated (address 0x%x).\n", frm->addr);
-                       i = 0;
-                       while(i < mISDNport->b_num)
-                       {
-                               if ((unsigned int)(mISDNport->b_addr[i]&STACK_ID_MASK) == (frm->addr&STACK_ID_MASK))
-                                       break;
-                               i++;
-                       }
-                       if (i == mISDNport->b_num)
-                       {
-                               PERROR("unhandled b-release (prim 0x%x address 0x%x).\n", frm->prim, frm->addr);
-                               break;
-                       }
-                       bchannel_event(mISDNport, i, B_EVENT_DEACTIVATED);
-                       break;
-
-                       default:
-                       PERROR("child message not handled: prim(0x%x) addr(0x%x) msg->len(%d)\n", frm->prim, frm->addr, msg->len);
-               }
-       }
-
-       out:
-       free_msg(msg);
-       return(1);
-}
-#endif
 
-#ifdef SOCKET_MISDN
 int do_layer3(struct mlayer3 *ml3, unsigned int cmd, unsigned int pid, struct l3_msg *l3m)
 {
        /* IMPORTAINT:
@@ -2957,8 +2132,6 @@ int do_layer3(struct mlayer3 *ml3, unsigned int cmd, unsigned int pid, struct l3
        return 0;
 }
 
-#endif
-
 
 /*
  * global function to add a new card (port)
@@ -2970,7 +2143,6 @@ struct mISDNport *mISDNport_open(int port, int ptp, int force_nt, int l2hold, st
        int i, cnt;
        int pri, bri, pots;
        int nt, te;
-#ifdef SOCKET_MISDN
 //     struct mlayer3 *ml3;
        struct mISDN_devinfo devinfo;
        unsigned int protocol, prop;
@@ -2981,18 +2153,6 @@ struct mISDNport *mISDNport_open(int port, int ptp, int force_nt, int l2hold, st
                fprintf(stderr, "Cannot get number of mISDN devices. (ioctl IMGETCOUNT failed ret=%d)\n", ret);
                return(NULL);
        }
-#else
-       unsigned char buff[1025];
-       iframe_t *frm = (iframe_t *)buff;
-//     interface_info_t ii;
-       net_stack_t *nst;
-       manager_t *mgr;
-       layer_info_t li;
-       stack_info_t *stinf;
-
-       /* query port's requirements */
-       cnt = mISDN_get_stack_count(mISDNdevice);
-#endif
 
        if (cnt <= 0)
        {
@@ -3006,7 +2166,6 @@ struct mISDNport *mISDNport_open(int port, int ptp, int force_nt, int l2hold, st
        }
 
        pri = bri = pots = nt = te = 0;
-#ifdef SOCKET_MISDN
        devinfo.id = port - 1;
        ret = ioctl(mISDNsocket, IMGETDEVINFO, &devinfo);
        if (ret < 0)
@@ -3080,86 +2239,6 @@ struct mISDNport *mISDNport_open(int port, int ptp, int force_nt, int l2hold, st
        /* if TE an NT is supported (and not forced to NT), turn off NT */
        if (te && nt)
                nt = 0;
-#else
-       ret = mISDN_get_stack_info(mISDNdevice, port, buff, sizeof(buff));
-       if (ret < 0)
-       {
-               PERROR_RUNTIME("Cannot get stack info for port %d (ret=%d)\n", port, ret);
-               return(NULL);
-       }
-       stinf = (stack_info_t *)&frm->data.p;
-       switch(stinf->pid.protocol[0] & ~ISDN_PID_FEATURE_MASK)
-       {
-               case ISDN_PID_L0_TE_S0:
-               PDEBUG(DEBUG_ISDN, "TE-mode BRI S/T interface line\n");
-               break;
-               case ISDN_PID_L0_NT_S0:
-               PDEBUG(DEBUG_ISDN, "NT-mode BRI S/T interface port\n");
-               nt = 1;
-               break;
-               case ISDN_PID_L0_TE_E1:
-               PDEBUG(DEBUG_ISDN, "TE-mode PRI E1  interface line\n");
-               pri = 1;
-               break;
-               case ISDN_PID_L0_NT_E1:
-               PDEBUG(DEBUG_ISDN, "LT-mode PRI E1  interface port\n");
-               pri = 1;
-               nt = 1;
-               break;
-               default:
-               PERROR_RUNTIME("unknown port(%d) type 0x%08x\n", port, stinf->pid.protocol[0]);
-               return(NULL);
-       }
-       if (nt)
-       {
-               /* NT */
-               if (stinf->pid.protocol[1] == 0)
-               {
-                       PERROR_RUNTIME("Given port %d: Missing layer 1 NT-mode protocol.\n", port);
-                       return(NULL);
-               }
-               if (stinf->pid.protocol[2])
-               {
-                       PERROR_RUNTIME("Given port %d: Layer 2 protocol 0x%08x is detected, but not allowed for NT lib.\n", port, stinf->pid.protocol[2]);
-                       return(NULL);
-               }
-       }
-       if (te)
-       {
-               /* TE */
-               if (stinf->pid.protocol[1] == 0)
-               {
-                       PERROR_RUNTIME("Given port %d: Missing layer 1 protocol.\n", port);
-                       return(NULL);
-               }
-               if (stinf->pid.protocol[2] == 0)
-               {
-                       PERROR_RUNTIME("Given port %d: Missing layer 2 protocol.\n", port);
-                       return(NULL);
-               }
-               if (stinf->pid.protocol[3] == 0)
-               {
-                       PERROR_RUNTIME("Given port %d: Missing layer 3 protocol.\n", port);
-                       return(NULL);
-               } else
-               {
-                       switch(stinf->pid.protocol[3] & ~ISDN_PID_FEATURE_MASK)
-                       {
-                               case ISDN_PID_L3_DSS1USER:
-                               break;
-
-                               default:
-                               PERROR_RUNTIME("Given port %d: own protocol 0x%08x", port,stinf->pid.protocol[3]);
-                               return(NULL);
-                       }
-               }
-               if (stinf->pid.protocol[4])
-               {
-                       PERROR_RUNTIME("Given port %d: Layer 4 protocol not allowed.\n", port);
-                       return(NULL);
-               }
-       }
-#endif
 
        /* add mISDNport structure */
        mISDNportp = &mISDNport_first;
@@ -3191,7 +2270,6 @@ struct mISDNport *mISDNport_open(int port, int ptp, int force_nt, int l2hold, st
        }
                
        /* allocate ressources of port */
-#ifdef SOCKET_MISDN
        /* open layer 3 and init upqueue */
        protocol = (nt)?L3_PROTOCOL_DSS1_NET:L3_PROTOCOL_DSS1_USER;
        prop = (1 << MISDN_FLG_L2_CLEAN);
@@ -3239,101 +2317,6 @@ struct mISDNport *mISDNport_open(int port, int ptp, int force_nt, int l2hold, st
 
        SCPY(mISDNport->name, devinfo.name);
        mISDNport->b_num = devinfo.nrbchan;
-#else
-       msg_queue_init(&mISDNport->downqueue);
-       mISDNport->d_stid = stinf->id;
-       PDEBUG(DEBUG_ISDN, "d_stid = 0x%x.\n", mISDNport->d_stid);
-
-       /* create layer intance */
-       memset(&li, 0, sizeof(li));
-       UCPY(&li.name[0], (nt)?"net l2":"pbx l4");
-       li.object_id = -1;
-       li.extentions = 0;
-       li.pid.protocol[nt?2:4] = (nt)?ISDN_PID_L2_LAPD_NET:ISDN_PID_L4_CAPI20;
-       li.pid.layermask = ISDN_LAYER((nt?2:4));
-       li.st = mISDNport->d_stid;
-       ret = mISDN_new_layer(mISDNdevice, &li);
-       if (ret)
-       {
-               PERROR("Cannot add layer %d of port %d (ret %d)\n", nt?2:4, port, ret);
-               closeport:
-               mISDNport_close(mISDNport);
-               return(NULL);
-       }
-       mISDNport->upper_id = li.id;
-       ret = mISDN_register_layer(mISDNdevice, mISDNport->d_stid, mISDNport->upper_id);
-       if (ret)
-       {
-               PERROR("Cannot register layer %d of port %d\n", nt?2:4, port);
-               goto closeport;
-       }
-       mISDNport->lower_id = mISDN_get_layerid(mISDNdevice, mISDNport->d_stid, nt?1:3); // id of lower layer (nt=1, te=3)
-       if (mISDNport->lower_id < 0)
-       {
-               PERROR("Cannot get layer(%d) id of port %d\n", nt?1:3, port);
-               goto closeport;
-       }
-       mISDNport->upper_id = mISDN_get_layerid(mISDNdevice, mISDNport->d_stid, nt?2:4); // id of uppermost layer (nt=2, te=4)
-       if (mISDNport->upper_id < 0)
-       {
-               PERROR("Cannot get layer(%d) id of port %d\n", nt?2:4, port);
-               goto closeport;
-       }
-       PDEBUG(DEBUG_ISDN, "Layer %d of port %d added.\n", nt?2:4, port);
-
-       /* if ntmode, establish L1 to send the tei removal during start */
-       if (mISDNport->ntmode)
-       {
-               iframe_t act;
-               /* L1 */
-               act.prim = PH_ACTIVATE | REQUEST; 
-               act.addr = mISDNport->upper_id | FLG_MSG_DOWN;
-               printf("UPPER ID 0x%x, addr 0x%x\n",mISDNport->upper_id, act.addr);
-               act.dinfo = 0;
-               act.len = 0;
-               mISDN_write(mISDNdevice, &act, mISDN_HEADER_LEN+act.len, TIMEOUT_1SEC);
-               usleep(10000); /* to be sure, that l1 is up */
-       }
-
-       /* create nst (nt-mode only) */
-       if (nt)
-       {
-               mgr = &mISDNport->mgr;
-               nst = &mISDNport->nst;
-
-               mgr->nst = nst;
-               nst->manager = mgr;
-
-               nst->l3_manager = stack2manager_nt; /* messages from nt-mode */
-               nst->device = mISDNdevice;
-               nst->cardnr = port;
-               nst->d_stid = mISDNport->d_stid;
-
-               nst->feature = FEATURE_NET_HOLD;
-               if (ptp)
-                       nst->feature |= FEATURE_NET_PTP;
-               if (pri)
-                       nst->feature |= FEATURE_NET_CRLEN2 | FEATURE_NET_EXTCID;
-#if 0
-               i = 0;
-               while(i < mISDNport->b_num)
-               {
-                       nst->b_stid[i] = mISDNport->b_stid[i];
-                       i++;
-               }
-#endif
-               nst->l1_id = mISDNport->lower_id;
-               nst->l2_id = mISDNport->upper_id;
-
-               /* phd */       
-               msg_queue_init(&nst->down_queue);
-
-               Isdnl2Init(nst);
-               Isdnl3Init(nst);
-       }
-
-       mISDNport->b_num = stinf->childcnt;
-#endif
        mISDNport->portnum = port;
        mISDNport->ntmode = nt;
        mISDNport->pri = pri;
@@ -3344,16 +2327,10 @@ struct mISDNport *mISDNport_open(int port, int ptp, int force_nt, int l2hold, st
        while(i < mISDNport->b_num)
        {
                mISDNport->b_state[i] = B_STATE_IDLE;
-#ifdef SOCKET_MISDN
                mISDNport->b_socket[i] = -1;
-#else
-               mISDNport->b_stid[i] = stinf->child[i];
-               PDEBUG(DEBUG_ISDN, "b_stid[%d] = 0x%x.\n", i, mISDNport->b_stid[i]);
-#endif
                i++;
        }
 
-#ifdef SOCKET_MISDN
        /* if ptp, pull up the link */
        if (mISDNport->l2hold && (mISDNport->ptp || !mISDNport->ntmode))
        {
@@ -3363,47 +2340,6 @@ struct mISDNport *mISDNport_open(int port, int ptp, int force_nt, int l2hold, st
                end_trace();
                time(&mISDNport->l2establish);
        }
-#else
-       /* if te-mode, query state link */
-       if (!mISDNport->ntmode)
-       {
-               iframe_t act;
-               /* L2 */
-               PDEBUG(DEBUG_ISDN, "sending short status request for port %d.\n", port);
-               act.prim = MGR_SHORTSTATUS | REQUEST; 
-               act.addr = mISDNport->upper_id | MSG_BROADCAST;
-               act.dinfo = SSTATUS_BROADCAST_BIT | SSTATUS_ALL;
-               act.len = 0;
-               mISDN_write(mISDNdevice, &act, mISDN_HEADER_LEN+act.len, TIMEOUT_1SEC);
-       }
-       /* if ptp AND te-mode, pull up the link */
-       if (mISDNport->l2hold && !mISDNport->ntmode)
-       {
-               iframe_t act;
-               /* L2 */
-               act.prim = DL_ESTABLISH | REQUEST; 
-               act.addr = (mISDNport->upper_id & ~LAYER_ID_MASK) | 4 | FLG_MSG_DOWN;
-               act.dinfo = 0;
-               act.len = 0;
-               mISDN_write(mISDNdevice, &act, mISDN_HEADER_LEN+act.len, TIMEOUT_1SEC);
-
-               l1l2l3_trace_header(mISDNport, NULL, L2_ESTABLISH_REQ, DIRECTION_OUT);
-               end_trace();
-               time(&mISDNport->l2establish);
-       }
-       /* if ptp AND nt-mode, pull up the link */
-       if (mISDNport->l2hold && mISDNport->ntmode && mISDNport->ptp)
-       {
-               msg_t *dmsg;
-               /* L2 */
-               dmsg = create_l2msg(DL_ESTABLISH | REQUEST, 0, 0);
-               if (mISDNport->nst.manager_l3(&mISDNport->nst, dmsg))
-                       free_msg(dmsg);
-               l1l2l3_trace_header(mISDNport, NULL, L2_ESTABLISH_REQ, DIRECTION_OUT);
-               end_trace();
-               time(&mISDNport->l2establish);
-       }
-#endif
 
        /* initially, we assume that the link is down, exept for nt-ptmp */
        mISDNport->l2link = (mISDNport->ntmode && !mISDNport->ptp)?1:0;
@@ -3443,11 +2379,6 @@ void mISDNport_close(struct mISDNport *mISDNport)
        struct mISDNport **mISDNportp;
        class Port *port;
        class PmISDN *isdnport;
-#ifdef SOCKET_MISDN
-#else
-       net_stack_t *nst;
-       unsigned char buf[32];
-#endif
        int i;
 
        /* remove all port instance that are linked to this mISDNport */
@@ -3484,11 +2415,7 @@ void mISDNport_close(struct mISDNport *mISDNport)
        i = 0;
        while(i < mISDNport->b_num)
        {
-#ifdef SOCKET_MISDN
                if (mISDNport->b_socket[i] > -1)
-#else
-               if (mISDNport->b_addr[i])
-#endif
                {
                        _bchannel_destroy(mISDNport, i);
                        PDEBUG(DEBUG_BCHANNEL, "freeing %s port %d bchannel (index %d).\n", (mISDNport->ntmode)?"NT":"TE", mISDNport->portnum, i);
@@ -3496,41 +2423,12 @@ void mISDNport_close(struct mISDNport *mISDNport)
                i++;
        }
 
-#ifdef SOCKET_MISDN
        /* close layer 3, if open and purge upqueue */
        if (mISDNport->ml3)
        {
                close_layer3(mISDNport->ml3);
                mqueue_purge(&mISDNport->upqueue);
        }
-#else
-       /* free ressources of port */
-       msg_queue_purge(&mISDNport->downqueue);
-
-       /* free stacks */
-       if (mISDNport->ntmode)
-       {
-               nst = &mISDNport->nst;
-               if (nst->manager) /* to see if initialized */
-               {
-                       PDEBUG(DEBUG_STACK, "the following messages are ok: one L3 process always exists (broadcast process) and some L2 instances (broadcast + current telephone's instances)\n");
-                       cleanup_Isdnl3(nst);
-                       cleanup_Isdnl2(nst);
-
-                       /* phd */
-                       msg_queue_purge(&nst->down_queue);
-                       if (nst->phd_down_msg)
-                               FREE(nst->phd_down_msg, 0);
-               }
-       }
-
-       PDEBUG(DEBUG_BCHANNEL, "freeing d-stack.\n");
-       if (mISDNport->d_stid)
-       {
-               if (mISDNport->upper_id)
-                       mISDN_write_frame(mISDNdevice, buf, mISDNport->upper_id | FLG_MSG_DOWN, MGR_DELLAYER | REQUEST, 0, 0, NULL, TIMEOUT_1SEC);
-       }
-#endif
 
        /* remove from list */
        mISDNportp = &mISDNport_first;
@@ -3562,7 +2460,6 @@ void mISDN_port_info(void)
        int ret;
        int i, ii;
        int useable, nt, te, pri, bri, pots;
-#ifdef SOCKET_MISDN
        struct mISDN_devinfo devinfo;
        int sock;
 
@@ -3582,24 +2479,6 @@ void mISDN_port_info(void)
                fprintf(stderr, "Cannot get number of mISDN devices. (ioctl IMGETCOUNT failed ret=%d)\n", ret);
                goto done;
        }
-#else
-       int p;
-       unsigned char buff[1025];
-       iframe_t *frm = (iframe_t *)buff;
-       stack_info_t *stinf;
-       int device;
-
-       /* open mISDN */
-       if ((device = mISDN_open()) < 0)
-       {
-               fprintf(stderr, "Cannot open mISDN device ret=%d errno=%d (%s) Check for mISDN modules!\nAlso did you create \"/dev/mISDN\"? Do: \"mknod /dev/mISDN c 46 0\"\n", device, errno, strerror(errno));
-               exit(EXIT_FAILURE);
-       }
-
-       /* get number of stacks */
-       i = 1;
-       ii = mISDN_get_stack_count(device);
-#endif
        printf("\n");
        if (ii <= 0)
        {
@@ -3613,7 +2492,6 @@ void mISDN_port_info(void)
                nt = te = bri = pri = pots = 0;
                useable = 0;
 
-#ifdef SOCKET_MISDN
                devinfo.id = i - 1;
                ret = ioctl(sock, IMGETDEVINFO, &devinfo);
                if (ret < 0)
@@ -3691,120 +2569,6 @@ void mISDN_port_info(void)
                printf("\n");
 
                printf("  - %d B-channels\n", devinfo.nrbchan);
-#else
-               ret = mISDN_get_stack_info(device, i, buff, sizeof(buff));
-               if (ret <= 0)
-               {
-                       fprintf(stderr, "mISDN_get_stack_info() failed: port=%d error=%d\n", i, ret);
-                       break;
-               }
-               stinf = (stack_info_t *)&frm->data.p;
-
-               /* output the port info */
-               printf("Port %2d: ", i);
-               switch(stinf->pid.protocol[0] & ~ISDN_PID_FEATURE_MASK)
-               {
-                       case ISDN_PID_L0_TE_S0:
-                       useable = 1;
-                       te = 1;
-                       bri = 1;
-                       printf("TE-mode BRI S/T interface line (for phone lines)");
-                       break;
-                       case ISDN_PID_L0_NT_S0:
-                       useable = 1;
-                       nt = 1;
-                       bri = 1;
-                       printf("NT-mode BRI S/T interface port (for phones)");
-                       break;
-                       case ISDN_PID_L0_TE_E1:
-                       useable = 1;
-                       te = 1;
-                       pri = 1;
-                       printf("TE-mode PRI E1  interface line (for phone lines)");
-                       break;
-                       case ISDN_PID_L0_NT_E1:
-                       useable = 1;
-                       nt = 1;
-                       pri = 1;
-                       printf("NT-mode PRI E1  interface port (for E1 devices)");
-                       break;
-                       default:
-                       useable = 0;
-                       printf("unknown type 0x%08x",stinf->pid.protocol[0]);
-               }
-               printf("\n");
-
-               if (nt)
-               {
-                       if (stinf->pid.protocol[1] == 0)
-                       {
-                               useable = 0;
-                               printf(" -> Missing layer 1 NT-mode protocol.\n");
-                       }
-                       p = 2;
-                       while(p <= MAX_LAYER_NR) {
-                               if (stinf->pid.protocol[p])
-                               {
-                                       useable = 0;
-                                       printf(" -> Layer %d protocol 0x%08x is detected, port already in use by another application.\n", p, stinf->pid.protocol[p]);
-                               }
-                               p++;
-                       }
-                       if (useable)
-                       {
-                               if (pri)
-                                       printf(" -> Interface is Point-To-Point (PRI).\n");
-                               else
-                                       printf(" -> Interface can be Poin-To-Point/Multipoint.\n");
-                       }
-               }
-               if (te)
-               {
-                       if (stinf->pid.protocol[1] == 0)
-                       {
-                               useable = 0;
-                               printf(" -> Missing layer 1 protocol.\n");
-                       }
-                       if (stinf->pid.protocol[2] == 0)
-                       {
-                               useable = 0;
-                               printf(" -> Missing layer 2 protocol.\n");
-                       }
-                       if (stinf->pid.protocol[2] & ISDN_PID_L2_DF_PTP)
-                       {
-                               printf(" -> Interface is Poin-To-Point.\n");
-                       }
-                       if (stinf->pid.protocol[3] == 0)
-                       {
-                               useable = 0;
-                               printf(" -> Missing layer 3 protocol.\n");
-                       } else
-                       {
-                               printf(" -> Protocol: ");
-                               switch(stinf->pid.protocol[3] & ~ISDN_PID_FEATURE_MASK)
-                               {
-                                       case ISDN_PID_L3_DSS1USER:
-                                       printf("DSS1 (Euro ISDN)");
-                                       break;
-
-                                       default:
-                                       useable = 0;
-                                       printf("unknown protocol 0x%08x",stinf->pid.protocol[3]);
-                               }
-                               printf("\n");
-                       }
-                       p = 4;
-                       while(p <= MAX_LAYER_NR) {
-                               if (stinf->pid.protocol[p])
-                               {
-                                       useable = 0;
-                                       printf(" -> Layer %d protocol 0x%08x is detected, port already in use by another application.\n", p, stinf->pid.protocol[p]);
-                               }
-                               p++;
-                       }
-               }
-               printf("  - %d B-channels\n", stinf->childcnt);
-#endif
 
                if (!useable)
                        printf(" * Port NOT useable for LCR\n");
@@ -3816,13 +2580,7 @@ void mISDN_port_info(void)
        printf("\n");
 
 done:
-#ifdef SOCKET_MISDN
        close(sock);
-#else
-       /* close mISDN */
-       if ((ret = mISDN_close(device)))
-               FATAL("mISDN_close() failed: err=%d '%s'\n", ret, strerror(ret));
-#endif
 }
 
 
@@ -3831,7 +2589,6 @@ done:
  */
 void PmISDN::txfromup(unsigned char *data, int length)
 {
-#ifdef SOCKET_MISDN
        unsigned char buf[MISDN_HEADER_LEN+((length>ISDN_LOAD)?length:ISDN_LOAD)];
        struct mISDNhead *hh = (struct mISDNhead *)buf;
        int ret;
@@ -3840,15 +2597,6 @@ void PmISDN::txfromup(unsigned char *data, int length)
                return;
        if (p_m_mISDNport->b_state[p_m_b_index] != B_STATE_ACTIVE)
                return;
-#else
-       unsigned char buf[mISDN_HEADER_LEN+((length>ISDN_LOAD)?length:ISDN_LOAD)];
-       iframe_t *frm = (iframe_t *)buf;
-
-       if (p_m_b_index < 0)
-               return;
-       if (!p_m_mISDNport->b_addr[p_m_b_index])
-               return;
-#endif
 
        /* check if high priority tones exist
         * ignore data in this case
@@ -3862,21 +2610,12 @@ void PmISDN::txfromup(unsigned char *data, int length)
         */
        if (p_m_load==0 && ISDN_LOAD>0)
        {
-#ifdef SOCKET_MISDN
                hh->prim = PH_DATA_REQ; 
                hh->id = 0;
                memset(buf+MISDN_HEADER_LEN, (options.law=='a')?0x2a:0xff, ISDN_LOAD);
                ret = sendto(p_m_mISDNport->b_socket[p_m_b_index], buf, MISDN_HEADER_LEN+ISDN_LOAD, 0, NULL, 0);
                if (ret <= 0)
                        PERROR("Failed to send to socket %d\n", p_m_mISDNport->b_socket[p_m_b_index]);
-#else
-               frm->prim = DL_DATA | REQUEST; 
-               frm->addr = p_m_mISDNport->b_addr[p_m_b_index] | FLG_MSG_DOWN;
-               frm->dinfo = 0;
-               frm->len = ISDN_LOAD;
-               memset(buf+mISDN_HEADER_LEN, (options.law=='a')?0x2a:0xff, ISDN_LOAD);
-               mISDN_write(mISDNdevice, frm, mISDN_HEADER_LEN+ISDN_LOAD, TIMEOUT_1SEC);
-#endif
                p_m_load += ISDN_LOAD;
        }
 
@@ -3887,21 +2626,12 @@ void PmISDN::txfromup(unsigned char *data, int length)
                return;
 
        /* make and send frame */
-#ifdef SOCKET_MISDN
        hh->prim = PH_DATA_REQ;
        hh->id = 0;
        memcpy(buf+MISDN_HEADER_LEN, data, length);
        ret = sendto(p_m_mISDNport->b_socket[p_m_b_index], buf, MISDN_HEADER_LEN+length, 0, NULL, 0);
        if (ret <= 0)
                PERROR("Failed to send to socket %d\n", p_m_mISDNport->b_socket[p_m_b_index]);
-#else
-       frm->prim = DL_DATA | REQUEST; 
-       frm->addr = p_m_mISDNport->b_addr[p_m_b_index] | FLG_MSG_DOWN;
-       frm->dinfo = 0;
-       frm->len = length;
-       memcpy(buf+mISDN_HEADER_LEN, data, length);
-       mISDN_write(mISDNdevice, frm, mISDN_HEADER_LEN+frm->len, TIMEOUT_1SEC);
-#endif
        p_m_load += length;
 }