X-Git-Url: http://git.eversberg.eu/gitweb.cgi?p=lcr.git;a=blobdiff_plain;f=mISDN.cpp;h=df550ae3b4c115783188efee71e31a530faba38b;hp=dfb8a6d109ce9f6b9e23b68f6c3bf8c848f8eded;hb=ab4a1270e9c99ab7a21a957759de2a885100afb1;hpb=a17752d887eb9eb975dce3453ab3d176a2818cb1 diff --git a/mISDN.cpp b/mISDN.cpp index dfb8a6d..df550ae 100644 --- a/mISDN.cpp +++ b/mISDN.cpp @@ -1,46 +1,92 @@ /*****************************************************************************\ ** ** -** PBX4Linux ** +** Linux Call Router ** ** ** **---------------------------------------------------------------------------** ** Copyright: Andreas Eversberg ** ** ** -** mISDN port abstraction for dss1 and sip ** +** mISDN port abstraction for dss1 ** ** ** \*****************************************************************************/ - -#include -#include -#include #include "main.h" -#include -#include -#include -#include -#include -#include -#include +#include "myisdn.h" + extern "C" { -#include } +#include + +#undef offsetof +#ifdef __compiler_offsetof +#define offsetof(TYPE,MEMBER) __compiler_offsetof(TYPE,MEMBER) +#else +#define offsetof(TYPE, MEMBER) ((size_t) &((TYPE *)0)->MEMBER) +#endif -#define ISDN_PID_L2_B_USER 0x420000ff -#define ISDN_PID_L3_B_USER 0x430000ff -#define ISDN_PID_L4_B_USER 0x440000ff +#define container_of(ptr, type, member) ({ \ + const typeof( ((type *)0)->member ) *__mptr = (ptr); \ + (type *)( (char *)__mptr - offsetof(type,member) );}) -/* used for udevice */ -int entity = 0; +// timeouts if activating/deactivating response from mISDN got lost +#define B_TIMER_ACTIVATING 1 // seconds +#define B_TIMER_DEACTIVATING 1 // seconds + +/* list of mISDN ports */ +struct mISDNport *mISDNport_first; /* noise randomizer */ unsigned char mISDN_rand[256]; int mISDN_rand_count = 0; -/* the device handler and port list */ -int mISDNdevice = -1; +unsigned int mt_assign_pid = ~0; -/* list of mISDN ports */ -struct mISDNport *mISDNport_first; +int mISDNsocket = -1; + +int mISDN_initialize(void) +{ + char filename[256]; + + /* try to open raw socket to check kernel */ + mISDNsocket = socket(PF_ISDN, SOCK_RAW, ISDN_P_BASE); + if (mISDNsocket < 0) + { + fprintf(stderr, "Cannot open mISDN due to '%s'. (Does your Kernel support socket based mISDN?)\n", strerror(errno)); + return(-1); + } + + /* init mlayer3 */ + init_layer3(4); // buffer of 4 + + /* open debug, if enabled and not only stack debugging */ + if (options.deb) + { + SPRINT(filename, "%s/debug.log", INSTALL_DATA); + debug_fp = fopen(filename, "a"); + } + + if (options.deb & DEBUG_STACK) + { + SPRINT(filename, "%s/debug_mISDN.log", INSTALL_DATA); + mISDN_debug_init(0xffffffff, filename, filename, filename); + } else + mISDN_debug_init(0, NULL, NULL, NULL); + + return(0); +} + +void mISDN_deinitialize(void) +{ + cleanup_layer3(); + + mISDN_debug_close(); + + if (debug_fp) + fclose(debug_fp); + debug_fp = NULL; + + if (mISDNsocket > -1) + close(mISDNsocket); +} /* * constructor @@ -53,26 +99,29 @@ PmISDN::PmISDN(int type, mISDNport *mISDNport, char *portname, struct port_setti p_m_b_channel = 0; p_m_b_exclusive = 0; p_m_b_reserve = 0; - p_m_b_addr = 0; - p_m_b_stid = 0; - p_m_jittercheck = 0; p_m_delete = 0; p_m_hold = 0; - p_m_txvol = p_m_rxvol = 0; + p_m_tx_gain = mISDNport->ifport->interface->tx_gain; + p_m_rx_gain = mISDNport->ifport->interface->rx_gain; p_m_conf = 0; p_m_txdata = 0; -#warning set delay by routing parameter or interface config p_m_delay = 0; p_m_echo = 0; p_m_tone = 0; p_m_rxoff = 0; - p_m_calldata = 0; - p_m_dtmf = !options.nodtmf; - sollen wir daraus eine interface-option machen?: + p_m_joindata = 0; + p_m_dtmf = !mISDNport->ifport->nodtmf; p_m_timeout = 0; p_m_timer = 0; -#warning denke auch an die andere seite. also das setup sollte dies weitertragen + p_m_remote_ref = 0; /* channel shall be exported to given remote */ + p_m_remote_id = 0; /* remote admin socket */ + SCPY(p_m_pipeline, mISDNport->ifport->interface->pipeline); + + /* audio */ + p_m_load = 0; + p_m_last_tv_sec = 0; + /* crypt */ p_m_crypt = 0; p_m_crypt_listen = 0; p_m_crypt_msg_loops = 0; @@ -80,13 +129,18 @@ PmISDN::PmISDN(int type, mISDNport *mISDNport, char *portname, struct port_setti p_m_crypt_msg_len = 0; p_m_crypt_msg[0] = '\0'; p_m_crypt_msg_current = 0; - p_m_crypt_key[0] = '\0'; p_m_crypt_key_len = 0; p_m_crypt_listen = 0; p_m_crypt_listen_state = 0; p_m_crypt_listen_len = 0; p_m_crypt_listen_msg[0] = '\0'; p_m_crypt_listen_crc = 0; + if (mISDNport->ifport->interface->bf_len >= 4 && mISDNport->ifport->interface->bf_len <= 56) + { + memcpy(p_m_crypt_key, mISDNport->ifport->interface->bf_key, p_m_crypt_key_len); + p_m_crypt_key_len = mISDNport->ifport->interface->bf_len; + p_m_crypt = 1; + } /* if any channel requested by constructor */ if (channel == CHANNEL_ANY) @@ -96,9 +150,8 @@ PmISDN::PmISDN(int type, mISDNport *mISDNport, char *portname, struct port_setti mISDNport->b_reserved++; } - } else /* reserve channel */ - if (channel) // only if constructor was called with a channel resevation + if (channel > 0) // only if constructor was called with a channel resevation seize_bchannel(channel, exclusive); /* we increase the number of objects: */ @@ -112,10 +165,10 @@ PmISDN::PmISDN(int type, mISDNport *mISDNport, char *portname, struct port_setti */ PmISDN::~PmISDN() { - struct message *message; + struct lcr_msg *message; /* remove bchannel relation */ - free_bchannel(); + drop_bchannel(); /* release epoint */ while (p_epointlist) @@ -136,453 +189,1147 @@ PmISDN::~PmISDN() /* - * send control information to the channel (dsp-module) + * trace */ -void ph_control(unsigned long b_addr, int c1, int c2) -{ - unsigned char buffer[mISDN_HEADER_LEN+sizeof(int)+sizeof(int)]; - iframe_t *ctrl = (iframe_t *)buffer; - unsigned long *d = (unsigned long *)&ctrl->data.p; - - ctrl->prim = PH_CONTROL | REQUEST; - ctrl->addr = b_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); -} - -void ph_control_block(unsigned long b_addr, int c1, void *c2, int c2_len) +void chan_trace_header(struct mISDNport *mISDNport, class PmISDN *port, char *msgtext, int direction) { - unsigned char buffer[mISDN_HEADER_LEN+sizeof(int)+c2_len]; - iframe_t *ctrl = (iframe_t *)buffer; - unsigned long *d = (unsigned long *)&ctrl->data.p; - - ctrl->prim = PH_CONTROL | REQUEST; - ctrl->addr = b_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); + /* init trace with given values */ + start_trace(mISDNport?mISDNport->portnum:0, + (mISDNport)?((mISDNport->ifport)?mISDNport->ifport->interface:NULL):NULL, + port?numberrize_callerinfo(port->p_callerinfo.id, port->p_callerinfo.ntype, options.national, options.international):NULL, + port?port->p_dialinginfo.id:NULL, + direction, + CATEGORY_CH, + port?port->p_serial:0, + msgtext); } /* - * activate / deactivate bchannel + * layer trace header */ -static void bchannel_activate(struct mISDNport *mISDNport, int i) +static struct isdn_message { + char *name; + unsigned int value; +} isdn_message[] = { + {"PH_ACTIVATE", L1_ACTIVATE_REQ}, + {"PH_DEACTIVATE", L1_DEACTIVATE_REQ}, + {"DL_ESTABLISH", L2_ESTABLISH_REQ}, + {"DL_RELEASE", L2_RELEASE_REQ}, + {"UNKNOWN", L3_UNKNOWN}, + {"MT_TIMEOUT", L3_TIMEOUT_REQ}, + {"MT_SETUP", L3_SETUP_REQ}, + {"MT_SETUP_ACK", L3_SETUP_ACKNOWLEDGE_REQ}, + {"MT_PROCEEDING", L3_PROCEEDING_REQ}, + {"MT_ALERTING", L3_ALERTING_REQ}, + {"MT_CONNECT", L3_CONNECT_REQ}, + {"MT_CONNECT_ACK", L3_CONNECT_ACKNOWLEDGE_REQ}, + {"MT_DISCONNECT", L3_DISCONNECT_REQ}, + {"MT_RELEASE", L3_RELEASE_REQ}, + {"MT_RELEASE_COMP", L3_RELEASE_COMPLETE_REQ}, + {"MT_INFORMATION", L3_INFORMATION_REQ}, + {"MT_PROGRESS", L3_PROGRESS_REQ}, + {"MT_NOTIFY", L3_NOTIFY_REQ}, + {"MT_SUSPEND", L3_SUSPEND_REQ}, + {"MT_SUSPEND_ACK", L3_SUSPEND_ACKNOWLEDGE_REQ}, + {"MT_SUSPEND_REJ", L3_SUSPEND_REJECT_REQ}, + {"MT_RESUME", L3_RESUME_REQ}, + {"MT_RESUME_ACK", L3_RESUME_ACKNOWLEDGE_REQ}, + {"MT_RESUME_REJ", L3_RESUME_REJECT_REQ}, + {"MT_HOLD", L3_HOLD_REQ}, + {"MT_HOLD_ACK", L3_HOLD_ACKNOWLEDGE_REQ}, + {"MT_HOLD_REJ", L3_HOLD_REJECT_REQ}, + {"MT_RETRIEVE", L3_RETRIEVE_REQ}, + {"MT_RETRIEVE_ACK", L3_RETRIEVE_ACKNOWLEDGE_REQ}, + {"MT_RETRIEVE_REJ", L3_RETRIEVE_REJECT_REQ}, + {"MT_FACILITY", L3_FACILITY_REQ}, + {"MT_STATUS", L3_STATUS_REQ}, + {"MT_RESTART", L3_RESTART_REQ}, + {"MT_NEW_L3ID", L3_NEW_L3ID_REQ}, + {"MT_RELEASE_L3ID", L3_RELEASE_L3ID_REQ}, + {NULL, 0}, +}; +static char *isdn_prim[4] = { + " REQUEST", + " CONFIRM", + " INDICATION", + " RESPONSE", +}; +void l1l2l3_trace_header(struct mISDNport *mISDNport, class PmISDN *port, unsigned int msg, int direction) { - iframe_t act; - - /* we must activate if we are deactivated */ - if (mISDNport->b_state[i] == B_STATE_IDLE) - { - /* activate bchannel */ - PDEBUG(DEBUG_BCHANNEL, "activating bchannel (index %d), because currently idle (address 0x%x).\n", i, mISDNport->b_addr[i]); - act.prim = DL_ESTABLISH | 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); - mISDNport->b_state[i] = B_STATE_ACTIVATING; - return; - } + int i; + char msgtext[64] = "<>"; - /* if we are active, we configure our channel */ - if (mISDNport->b_state[i] == B_STATE_ACTIVE) + /* select message and primitive text */ + i = 0; + while(isdn_message[i].name) { - unsigned char buffer[mISDN_HEADER_LEN+ISDN_PRELOAD]; - iframe_t *pre = (iframe_t *)buffer; /* preload data */ - unsigned char *p = (unsigned char *)&pre->data.p; - - /* it is an error if this channel is not associated with a port object */ - if (!mISDNport->b_port[i]) - { - PERROR("bchannel index i=%d not associated with a port object\n", i); - return; - } - - /* configure dsp features */ - if (mISDNport->b_port[i]->p_m_txdata) - { - PDEBUG(DEBUG_BCHANNEL, "during activation, we set txdata to txdata=%d.\n", mISDNport->b_port[i]->p_m_txdata); - ph_control(mISDNport->b_addr[i], (mISDNport->b_port[i]->p_m_txdata)?CMX_TXDATA_ON:CMX_TXDATA_OFF); - } - if (mISDNport->b_port[i]->p_m_delay) - { - PDEBUG(DEBUG_BCHANNEL, "during activation, we set delay to delay=%d.\n", mISDNport->b_port[i]->p_m_delay); - ph_control(mISDNport->b_addr[i], CMX_DELAY, mISDNport->b_port[i]->p_m_delay); - } - if (mISDNport->b_port[i]->p_m_txvol) - { - PDEBUG(DEBUG_BCHANNEL, "during activation, we change tx-volume to shift=%d.\n", mISDNport->b_port[i]->p_m_txvol); - ph_control(mISDNport->b_addr[i], VOL_CHANGE_TX, mISDNport->b_port[i]->p_m_txvol); - } - if (mISDNport->b_port[i]->p_m_rxvol) - { - PDEBUG(DEBUG_BCHANNEL, "during activation, we change rx-volume to shift=%d.\n", mISDNport->b_port[i]->p_m_rxvol); - ph_control(mISDNport->b_addr[i], VOL_CHANGE_RX, mISDNport->b_port[i]->p_m_rxvol); - } -//tone if (mISDNport->b_port[i]->p_m_conf && !mISDNport->b_port[i]->p_m_tone) - if (mISDNport->b_port[i]->p_m_conf) - { - PDEBUG(DEBUG_BCHANNEL, "during activation, we change conference to conf=%d.\n", mISDNport->b_port[i]->p_m_conf); - ph_control(mISDNport->b_addr[i], CMX_CONF_JOIN, mISDNport->b_port[i]->p_m_conf); - } - if (mISDNport->b_port[i]->p_m_echo) - { - PDEBUG(DEBUG_BCHANNEL, "during activation, we set echo to echo=%d.\n", mISDNport->b_port[i]->p_m_echo); - ph_control(mISDNport->b_addr[i], CMX_ECHO_ON, 0); - } - if (mISDNport->b_port[i]->p_m_tone) - { - PDEBUG(DEBUG_BCHANNEL, "during activation, we set tone to tone=%d.\n", mISDNport->b_port[i]->p_m_tone); - ph_control(mISDNport->b_addr[i], TONE_PATT_ON, mISDNport->b_port[i]->p_m_tone); - } - if (mISDNport->b_port[i]->p_m_rxoff) - { - PDEBUG(DEBUG_BCHANNEL, "during activation, we set rxoff to rxoff=%d.\n", mISDNport->b_port[i]->p_m_rxoff); - ph_control(mISDNport->b_addr[i], CMX_RECEIVE_OFF, 0); - } -#if 0 - if (mISDNport->b_port[i]->p_m_txmix) - { - PDEBUG(DEBUG_BCHANNEL, "during activation, we set txmix to txmix=%d.\n", mISDNport->b_port[i]->p_m_txmix); - ph_control(mISDNport->b_addr[i], CMX_MIX_ON, 0); - } -#endif - if (mISDNport->b_port[i]->p_m_dtmf) - { - PDEBUG(DEBUG_BCHANNEL, "during activation, we set dtmf to dtmf=%d.\n", mISDNport->b_port[i]->p_m_dtmf); - ph_control(mISDNport->b_addr[i], DTMF_TONE_START, 0); - } - if (mISDNport->b_port[i]->p_m_crypt) + if (isdn_message[i].value == (msg&0xffffff00)) { - PDEBUG(DEBUG_BCHANNEL, "during activation, we set crypt to crypt=%d.\n", mISDNport->b_port[i]->p_m_crypt); - ph_control_block(mISDNport->b_addr[i], BF_ENABLE_KEY, mISDNport->b_port[i]->p_m_crypt_key, mISDNport->b_port[i]->p_m_crypt_key_len); + SCPY(msgtext, isdn_message[i].name); + break; } - todo: wer startet/stoppt eigentlich den audio-transmit + i++; } -} - -static void bchannel_deactivate(struct mISDNport *mISDNport, int i) -{ - iframe_t dact; + SCAT(msgtext, isdn_prim[msg&0x00000003]); - if (mISDNport->b_state[i] == B_STATE_ACTIVE) + /* add direction */ + if (direction && (msg&0xffffff00)!=L3_NEW_L3ID_REQ && (msg&0xffffff00)!=L3_RELEASE_L3ID_REQ) { - /* reset dsp features */ - if (mISDNport->b_port[i]) + if (mISDNport) { - if (mISDNport->b_port[i]->p_m_delay) - { - PDEBUG(DEBUG_BCHANNEL, "during deactivation, we reset txdata from txdata=%d.\n", mISDNport->b_port[i]->p_m_txdata); - ph_control(mISDNport->b_addr[i], CMX_TXDATA_OFF, 0); - } - if (mISDNport->b_port[i]->p_m_delay) - { - PDEBUG(DEBUG_BCHANNEL, "during deactivation, we reset delay from delay=%d.\n", mISDNport->b_port[i]->p_m_delay); - ph_control(mISDNport->b_addr[i], CMX_JITTER, 0); - } - if (mISDNport->b_port[i]->p_m_txvol) - { - PDEBUG(DEBUG_BCHANNEL, "during deactivation, we reset tx-volume from shift=%d.\n", mISDNport->b_port[i]->p_m_txvol); - ph_control(mISDNport->b_addr[i], VOL_CHANGE_TX, 0); - } - if (mISDNport->b_port[i]->p_m_rxvol) - { - PDEBUG(DEBUG_BCHANNEL, "during deactivation, we reset rx-volume from shift=%d.\n", mISDNport->b_port[i]->p_m_rxvol); - ph_control(mISDNport->b_addr[i], VOL_CHANGE_RX, 0); - } - if (mISDNport->b_port[i]->p_m_conf) - { - PDEBUG(DEBUG_BCHANNEL, "during deactivation, we release conference from conf=%d.\n", mISDNport->b_port[i]->p_m_conf); - ph_control(mISDNport->b_addr[i], CMX_CONF_SPLIT, 0); - } - if (mISDNport->b_port[i]->p_m_echo) - { - PDEBUG(DEBUG_BCHANNEL, "during deactivation, we reset echo from echo=%d.\n", mISDNport->b_port[i]->p_m_echo); - ph_control(mISDNport->b_addr[i], CMX_ECHO_OFF, 0); - } - if (mISDNport->b_port[i]->p_m_tone) - { - PDEBUG(DEBUG_BCHANNEL, "during deactivation, we reset tone from tone=%d.\n", mISDNport->b_port[i]->p_m_tone); - ph_control(mISDNport->b_addr[i], TONE_PATT_OFF, 0); - } - if (mISDNport->b_port[i]->p_m_rxoff) - { - PDEBUG(DEBUG_BCHANNEL, "during deactivation, we reset rxoff from rxoff=%d.\n", mISDNport->b_port[i]->p_m_rxoff); - ph_control(mISDNport->b_addr[i], CMX_RECEIVE_ON, 0); - } -#if 0 - if (mISDNport->b_port[i]->p_m_txmix) - { - PDEBUG(DEBUG_BCHANNEL, "during deactivation, we reset txmix from txmix=%d.\n", mISDNport->b_port[i]->p_m_txmix); - ph_control(mISDNport->b_addr[i], CMX_MIX_OFF, 0); - } -#endif - if (mISDNport->b_port[i]->p_m_dtmf) + if (mISDNport->ntmode) { - PDEBUG(DEBUG_BCHANNEL, "during deactivation, we reset dtmf from dtmf=%d.\n", mISDNport->b_port[i]->p_m_dtmf); - ph_control(mISDNport->b_addr[i], DTMF_TONE_STOP, 0); - } - if (mISDNport->b_port[i]->p_m_crypt) + if (direction == DIRECTION_OUT) + SCAT(msgtext, " N->U"); + else + SCAT(msgtext, " N<-U"); + } else { - PDEBUG(DEBUG_BCHANNEL, "during deactivation, we reset crypt from crypt=%d.\n", mISDNport->b_port[i]->p_m_dtmf); - ph_control(mISDNport->b_addr[i], BF_DISABLE, 0); + if (direction == DIRECTION_OUT) + SCAT(msgtext, " U->N"); + else + SCAT(msgtext, " U<-N"); } } - /* deactivate bchannel */ - PDEBUG(DEBUG_BCHANNEL, "deactivating bchannel (index %d), because currently active.\n", i); - dact.prim = DL_RELEASE | REQUEST; - dact.addr = mISDNport->b_addr[i] | FLG_MSG_DOWN; - dact.dinfo = 0; - dact.len = 0; - mISDN_write(mISDNdevice, &dact, mISDN_HEADER_LEN+dact.len, TIMEOUT_1SEC); - mISDNport->b_state[i] = B_STATE_DEACTIVATING; - return; } + + /* init trace with given values */ + start_trace(mISDNport?mISDNport->portnum:0, + mISDNport?(mISDNport->ifport?mISDNport->ifport->interface:NULL):NULL, + port?numberrize_callerinfo(port->p_callerinfo.id, port->p_callerinfo.ntype, options.national, options.international):NULL, + port?port->p_dialinginfo.id:NULL, + direction, + CATEGORY_CH, + port?port->p_serial:0, + msgtext); } /* - * check for available channel and reserve+set it. - * give channel number or SEL_CHANNEL_ANY or SEL_CHANNEL_NO - * give exclusiv flag - * returns -(cause value) or x = channel x or 0 = no channel + * send control information to the channel (dsp-module) */ -denke ans aktivieren und deaktivieren -int PmISDN::seize_bchannel(int channel, int exclusive) +void ph_control(struct mISDNport *mISDNport, class PmISDN *isdnport, int sock, unsigned int c1, unsigned int c2, char *trace_name, int trace_value) { - int i; + unsigned char buffer[MISDN_HEADER_LEN+sizeof(int)+sizeof(int)]; + struct mISDNhead *ctrl = (struct mISDNhead *)buffer; + unsigned int *d = (unsigned int *)(buffer+MISDN_HEADER_LEN); + int ret; - /* the channel is what we have */ - if (p_m_b_channel == channel) - return(channel); + if (sock < 0) + return; - /* if channel already in use, release it */ - if (p_m_b_channel) - drop_bchannel(); + ctrl->prim = PH_CONTROL_REQ; + ctrl->id = 0; + *d++ = c1; + *d++ = c2; + 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); + chan_trace_header(mISDNport, isdnport, "BCHANNEL control", DIRECTION_OUT); + if (c1 == DSP_CONF_JOIN) + add_trace(trace_name, NULL, "0x%08x", trace_value); + else + add_trace(trace_name, NULL, "%d", trace_value); + end_trace(); +} - /* if CHANNEL_NO */ - if (channel==CHANNEL_NO || channel==0) - return(0); - - /* is channel in range ? */ - if (channel==16 - || (channel>p_m_mISDNport->b_num && channel<16) - || ((channel-1)>p_m_mISDNport->b_num && channel>16)) /* channel-1 because channel 16 is not counted */ - return(-6); /* channel unacceptable */ +void ph_control_block(struct mISDNport *mISDNport, class PmISDN *isdnport, int sock, unsigned int c1, void *c2, int c2_len, char *trace_name, int trace_value) +{ + unsigned char buffer[MISDN_HEADER_LEN+sizeof(int)+c2_len]; + struct mISDNhead *ctrl = (struct mISDNhead *)buffer; + unsigned int *d = (unsigned int *)(buffer+MISDN_HEADER_LEN); + int ret; - /* request exclusive channel */ - if (exclusive && channel>0) + if (sock < 0) + return; + + ctrl->prim = PH_CONTROL_REQ; + ctrl->id = 0; + *d++ = c1; + memcpy(d, c2, c2_len); + 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); + chan_trace_header(mISDNport, isdnport, "BCHANNEL control", DIRECTION_OUT); + add_trace(trace_name, NULL, "%d", trace_value); + end_trace(); +} + + +/* + * subfunction for bchannel_event + * create stack + */ +static int _bchannel_create(struct mISDNport *mISDNport, int i) +{ + int ret; + unsigned int on = 1; + struct sockaddr_mISDN addr; + + if (mISDNport->b_socket[i] > -1) { - i = channel-1-(channel>16); - if (p_m_mISDNport->b_port[i]) - return(-44); /* requested channel not available */ - goto seize; + PERROR("Error: Socket already created for index %d\n", i); + return(0); } - /* ask for channel */ - if (channel>0) + /* open socket */ +//#warning testing without DSP +// mISDNport->b_socket[i] = socket(PF_ISDN, SOCK_DGRAM, ISDN_P_B_RAW); + mISDNport->b_socket[i] = socket(PF_ISDN, SOCK_DGRAM, ISDN_P_B_L2DSP); + if (mISDNport->b_socket[i] < 0) { - i = channel-1-(channel>16); - if (p_m_mISDNport->b_port[i] == NULL) - goto seize; + PERROR("Error: Failed to open bchannel-socket for index %d with mISDN-DSP layer. Did you load mISDNdsp.ko?\n", i); + return(0); } - - /* search for channel */ - i = 0; - while(i < p_m_mISDNport->b_num) + + /* set nonblocking io */ + ret = ioctl(mISDNport->b_socket[i], FIONBIO, &on); + if (ret < 0) { - if (!p_m_mISDNport->b_port[i]) - { - channel = i+1+(i>=15); - goto seize; - } - i++; + PERROR("Error: Failed to set bchannel-socket index %d into nonblocking IO\n", i); + close(mISDNport->b_socket[i]); + mISDNport->b_socket[i] = -1; + return(0); } - return(-34); /* no free channel */ - -seize: - /* link Port */ - p_m_mISDNport->b_port[i] = this; - p_m_b_index = i; - p_m_b_channel = channel; - p_m_b_exclusive = exclusive; - p_m_b_stid = p_m_mISDNport->b_stid[i]; - p_m_b_addr = p_m_mISDNport->b_addr[i]; - p_m_jittercheck = 0; - /* reserve channel */ - if (p_m_b_reserve == 0) // already reserved + /* bind socket to bchannel */ + addr.family = AF_ISDN; + addr.dev = mISDNport->portnum-1; + addr.channel = i+1+(i>=15); + ret = bind(mISDNport->b_socket[i], (struct sockaddr *)&addr, sizeof(addr)); + if (ret < 0) { - p_m_b_reserve = 1; - mISDNport->b_reserved++; + PERROR("Error: Failed to bind bchannel-socket for index %d with mISDN-DSP layer. Did you load mISDNdsp.ko?\n", i); + close(mISDNport->b_socket[i]); + mISDNport->b_socket[i] = -1; + return(0); } - PDEBUG(DEBUG_BCHANNEL, "PmISDN(%s) seizing bchannel %d (index %d)\n", p_name, channel, i); + chan_trace_header(mISDNport, mISDNport->b_port[i], "BCHANNEL create socket", DIRECTION_OUT); + add_trace("channel", NULL, "%d", i+1+(i>=15)); + add_trace("socket", NULL, "%d", mISDNport->b_socket[i]); + end_trace(); - return(channel); + return(1); } + /* - * drop reserved channel and unset it. + * subfunction for bchannel_event + * activate / deactivate request */ -void PmISDN::drop_bchannel(void) +static void _bchannel_activate(struct mISDNport *mISDNport, int i, int activate) { - /* unreserve channel */ - if (p_m_b_reserve) - p_m_mISDNport->b_reserved--; - p_m_b_reserve = 0; + struct mISDNhead act; + int ret; - /* if not in use */ - if (!p_m_b_channel) + if (mISDNport->b_socket[i] < 0) return; - - PDEBUG(DEBUG_BCHANNEL, "PmISDN(%s) dropping bchannel\n", p_name); - - p_m_mISDNport->b_port[p_m_b_index] = NULL; - p_m_b_index = -1; - p_m_b_channel = 0; - p_m_b_exclusive = 0; - p_m_b_addr = 0; - p_m_b_stid = 0; + act.prim = (activate)?PH_ACTIVATE_REQ:PH_DEACTIVATE_REQ; + act.id = 0; + 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]); + + /* trace */ + chan_trace_header(mISDNport, mISDNport->b_port[i], activate?(char*)"BCHANNEL activate":(char*)"BCHANNEL deactivate", DIRECTION_OUT); + add_trace("channel", NULL, "%d", i+1+(i>=15)); + if (mISDNport->b_timer[i]) + add_trace("event", NULL, "timeout recovery"); + end_trace(); } /* - * data is to be transmitted to the remote + * subfunction for bchannel_event + * set features */ -wech void Port::transmit(unsigned char *buffer, int length, int tonelength) +static void _bchannel_configure(struct mISDNport *mISDNport, int i) { - /* send tone data to isdn device only if we have data, otherwhise we send nothing */ - if (tonelength>0 && (p_tone_fh>=0 || p_tone_fetched || p_m_crypt_msg_loops)) - { - unsigned char buf[mISDN_HEADER_LEN+tonelength]; - iframe_t *frm = (iframe_t *)buf; + struct PmISDN *port; + int handle; - if (p_m_crypt_msg_loops) - { - /* send pending message */ - int tosend; - - tosend = p_m_crypt_msg_len - p_m_crypt_msg_current; - if (tosend > newlen) - tosend = newlen; - memcpy(p, p_m_crypt_msg+p_m_crypt_msg_current, tosend); - p_m_crypt_msg_current += tosend; - if (p_m_crypt_msg_current == p_m_crypt_msg_len) - { - p_m_crypt_msg_current = 0; - p_m_crypt_msg_loops--; - } - } - frm->prim = DL_DATA | REQUEST; - frm->addr = p_m_b_addr | FLG_MSG_DOWN; - frm->dinfo = 0; - frm->len = tonelength; - memcpy(&frm->data.p, buffer, tonelength); - mISDN_write(mISDNdevice, frm, mISDN_HEADER_LEN+frm->len, TIMEOUT_1SEC); - - if (p_debug_nothingtosend) - { - p_debug_nothingtosend = 0; - PDEBUG((DEBUG_PORT | DEBUG_BCHANNEL), "PmISDN(%s) start sending, because we have tones and/or remote audio.\n", p_name); - } - } else + if (mISDNport->b_socket[i] < 0) + return; + handle = mISDNport->b_socket[i]; + port = mISDNport->b_port[i]; + if (!port) { - if (!p_debug_nothingtosend) - { - p_debug_nothingtosend = 1; - PDEBUG((DEBUG_PORT | DEBUG_BCHANNEL), "PmISDN(%s) stop sending, because we have only silence.\n", p_name); - } + PERROR("bchannel index i=%d not associated with a port object\n", i); + return; } -} + /* set dsp features */ + if (port->p_m_txdata) + ph_control(mISDNport, port, handle, (port->p_m_txdata)?DSP_TXDATA_ON:DSP_TXDATA_OFF, 0, "DSP-TXDATA", port->p_m_txdata); + if (port->p_m_delay) + ph_control(mISDNport, port, handle, DSP_DELAY, port->p_m_delay, "DSP-DELAY", port->p_m_delay); + if (port->p_m_tx_gain) + ph_control(mISDNport, port, handle, DSP_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, DSP_VOL_CHANGE_RX, port->p_m_rx_gain, "DSP-RX_GAIN", port->p_m_rx_gain); + if (port->p_m_pipeline[0]) + ph_control_block(mISDNport, port, handle, DSP_PIPELINE_CFG, port->p_m_pipeline, strlen(port->p_m_pipeline)+1, "DSP-PIPELINE", 0); + if (port->p_m_conf) + ph_control(mISDNport, port, handle, DSP_CONF_JOIN, port->p_m_conf, "DSP-CONF", port->p_m_conf); + if (port->p_m_echo) + ph_control(mISDNport, port, handle, DSP_ECHO_ON, 0, "DSP-ECHO", 1); + if (port->p_m_tone) + ph_control(mISDNport, port, handle, DSP_TONE_PATT_ON, port->p_m_tone, "DSP-TONE", port->p_m_tone); + if (port->p_m_rxoff) + ph_control(mISDNport, port, handle, DSP_RECEIVE_OFF, 0, "DSP-RXOFF", 1); +// if (port->p_m_txmix) +// ph_control(mISDNport, port, handle, DSP_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, DSP_BF_ENABLE_KEY, port->p_m_crypt_key, port->p_m_crypt_key_len, "DSP-CRYPT", port->p_m_crypt_key_len); +} /* - * handler + * subfunction for bchannel_event + * destroy stack */ -int PmISDN::handler(void) +static void _bchannel_destroy(struct mISDNport *mISDNport, int i) { - struct message *message; - int elapsed, length; + if (mISDNport->b_socket[i] < 0) + return; + chan_trace_header(mISDNport, mISDNport->b_port[i], "BCHANNEL remove socket", DIRECTION_OUT); + add_trace("channel", NULL, "%d", i+1+(i>=15)); + add_trace("socket", NULL, "%d", mISDNport->b_socket[i]); + end_trace(); + close(mISDNport->b_socket[i]); + mISDNport->b_socket[i] = -1; +} - if ((ret = Port::handler())) - return(ret); - /* send tone data to isdn device only if we have data */ - if (p_tone_fh>=0 || p_tone_fetched || p_m_crypt_msg_loops) - { - /* calculate how much to transmit */ - if (!p_last_tv.sec) - { - elapsed = ISDN_PRELOAD << 3; /* preload for the first time */ - } else - { - elapsed = 1000 * (now_tv.sec - p_last_tv_sec) - + (now_tv.usec/1000) - p_last_tv_msec; - /* gap was greater preload, so only fill up to preload level */ - if (elapsed > ISDN_PRELOAD) - { - elapsed = ISDN_PRELOAD << 3 - } - } - if (elapsed >= ISDN_TRANSMIT) - { - unsigned char buf[mISDN_HEADER_LEN+(ISDN_PRELOAD<<3)]; - iframe_t *frm = (iframe_t *)buf; +/* +bchannel procedure +------------------ - length = read_audio(buffer, elapsed); - p_last_tv_sec = now_tv.sec; - p_last_tv_msec = now_tv.usec/1000; +A bchannel goes through the following states in this order: - if (p_m_crypt_msg_loops) - { - /* send pending message */ - int tosend; - check!! - tosend = p_m_crypt_msg_len - p_m_crypt_msg_current; - if (tosend > length) - tosend = length; - memcpy(p, p_m_crypt_msg+p_m_crypt_msg_current, tosend); - p_m_crypt_msg_current += tosend; - if (p_m_crypt_msg_current == p_m_crypt_msg_len) - { - p_m_crypt_msg_current = 0; - p_m_crypt_msg_loops--; - } - } - frm->prim = DL_DATA | REQUEST; - frm->addr = p_m_b_addr | FLG_MSG_DOWN; - frm->dinfo = 0; - frm->len = length; - memcpy(&frm->data.p, buffer, length); - mISDN_write(mISDNdevice, frm, mISDN_HEADER_LEN+frm->len, TIMEOUT_1SEC); - - if (p_debug_nothingtosend) - { - p_debug_nothingtosend = 0; - PDEBUG((DEBUG_PORT | DEBUG_BCHANNEL), "PmISDN(%s) start sending, because we have tones and/or remote audio.\n", p_name); - } - return(1); - } - } else - { - p_last_tv.sec = p_last_tv.msec = 0; /* flag that we don't transmit data */ - if (!cwp_debug_nothingtosend) - { - p_debug_nothingtosend = 1; - PDEBUG((DEBUG_PORT | DEBUG_BCHANNEL), "PmISDN(%s) stop sending, because we have only silence.\n", p_name); - } - } +- B_STATE_IDLE +No one is using the bchannel. +It is available and not linked to Port class, nor reserved. - // NOTE: deletion is done by the child class +- B_STATE_ACTIVATING +The bchannel stack is created and an activation request is sent. +It MAY be linked to Port class, but already unlinked due to Port class removal. - /* handle timeouts */ +- B_STATE_ACTIVE +The bchannel is active and cofigured to the Port class needs. +Also it is linked to a Port class, otherwhise it would be deactivated. + +- B_STATE_DEACTIVATING +The bchannel is in deactivating state, due to deactivation request. +It may be linked to a Port class, that likes to reactivate it. + +- B_STATE_IDLE +See above. +After deactivating bchannel, and if not used, the bchannel becomes idle again. + +Also the bchannel may be exported, but only if the state is or becomes idle: + +- B_STATE_EXPORTING +The bchannel assignment has been sent to the remove application. + +- B_STATE_REMOTE +The bchannel assignment is acknowledged by the remote application. + +- B_STATE_IMPORTING +The bchannel is re-imported by mISDN port object. + +- B_STATE_IDLE +See above. +After re-importing bchannel, and if not used, the bchannel becomes idle again. + + +A bchannel can have the following events: + +- B_EVENT_USE +A bchannel is required by a Port class. + +- B_EVENT_ACTIVATED +The bchannel beomes active. + +- B_EVENT_DROP +The bchannel is not required by Port class anymore + +- B_EVENT_DEACTIVATED +The bchannel becomes inactive. + +- B_EVENT_EXPORTED +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. +the b_remote_*[index] indicates if and where the channel is exported to. (set from the point on, where export is initiated, until imported is acknowledged.) +- set on export request from remote application (if port is assigned) +- set on channel use, if requested by remote application (p_m_remote_*) +- cleared on drop request + +the bchannel will be exported with ref and stack given. remote application uses the ref to link bchannel to the call. +the bchannel will be imported with stack given only. remote application must store stack id with the bchannel process. +the bchannel import/export is acknowledged with stack given. + +if exporting, b_remote_*[index] is set to the remote socket id. +if importing has been acknowledged. b_remote_*[index] is cleared. + +*/ + +/* + * process bchannel events + * - mISDNport is a pointer to the port's structure + * - i is the index of the bchannel + * - event is the B_EVENT_* value + * - port is the PmISDN class pointer + */ +void bchannel_event(struct mISDNport *mISDNport, int i, int event) +{ + class PmISDN *b_port = mISDNport->b_port[i]; + int state = mISDNport->b_state[i]; + double timer = mISDNport->b_timer[i]; + unsigned int p_m_remote_ref = 0; + unsigned int p_m_remote_id = 0; + int p_m_tx_gain = 0; + int p_m_rx_gain = 0; + char *p_m_pipeline = NULL; + unsigned char *p_m_crypt_key = NULL; + int p_m_crypt_key_len = 0; + int p_m_crypt_key_type = 0; + unsigned int portid = (mISDNport->portnum<<8) + i+1+(i>=15); + + if (b_port) + { + p_m_remote_id = b_port->p_m_remote_id; + p_m_remote_ref = b_port->p_m_remote_ref; + p_m_tx_gain = b_port->p_m_tx_gain; + p_m_rx_gain = b_port->p_m_rx_gain; + p_m_pipeline = b_port->p_m_pipeline; + p_m_crypt_key = b_port->p_m_crypt_key; + p_m_crypt_key_len = b_port->p_m_crypt_key_len; + p_m_crypt_key_type = /*b_port->p_m_crypt_key_type*/1; + } + + switch(event) + { + case B_EVENT_USE: + /* port must be linked in order to allow activation */ + if (!b_port) + FATAL("bchannel must be linked to a Port class\n"); + switch(state) + { + case B_STATE_IDLE: + if (p_m_remote_ref) + { + /* export bchannel */ + message_bchannel_to_remote(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"); + add_trace("channel", NULL, "%d.%d", portid>>8, portid&0xff); + end_trace(); + state = B_STATE_EXPORTING; + mISDNport->b_remote_id[i] = p_m_remote_id; + mISDNport->b_remote_ref[i] = p_m_remote_ref; + } else + { + /* create stack and send activation request */ + if (_bchannel_create(mISDNport, i)) + { + _bchannel_activate(mISDNport, i, 1); + state = B_STATE_ACTIVATING; + timer = now_d + B_TIMER_ACTIVATING; + } + } + break; + + case B_STATE_ACTIVATING: + case B_STATE_EXPORTING: + /* do nothing, because it is already activating */ + break; + + case B_STATE_DEACTIVATING: + case B_STATE_IMPORTING: + /* do nothing, because we must wait until we can reactivate */ + break; + + default: + /* problems that might ocurr: + * B_EVENT_USE is received when channel already in use. + * bchannel exported, but not freed by other port + */ + PERROR("Illegal event %d at state %d, please correct.\n", event, state); + } + break; + + case B_EVENT_EXPORTREQUEST: + /* special case where the bchannel is requested by remote */ + if (!p_m_remote_ref) + { + PERROR("export request without remote channel set, please correct.\n"); + break; + } + switch(state) + { + case B_STATE_IDLE: + /* in case, the bchannel is exported right after seize_bchannel */ + /* export bchannel */ + /* p_m_remote_id is set, when this event happens. */ + message_bchannel_to_remote(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"); + add_trace("channel", NULL, "%d.%d", portid>>8, portid&0xff); + end_trace(); + state = B_STATE_EXPORTING; + mISDNport->b_remote_id[i] = p_m_remote_id; + mISDNport->b_remote_ref[i] = p_m_remote_ref; + break; + + case B_STATE_ACTIVATING: + case B_STATE_EXPORTING: + /* do nothing, because it is already activating */ + break; + + case B_STATE_DEACTIVATING: + case B_STATE_IMPORTING: + /* do nothing, because we must wait until we can reactivate */ + break; + + case B_STATE_ACTIVE: + /* bchannel is active, so we deactivate */ + _bchannel_activate(mISDNport, i, 0); + state = B_STATE_DEACTIVATING; + timer = now_d + B_TIMER_DEACTIVATING; + break; + + default: + /* problems that might ocurr: + * ... when channel already in use. + * bchannel exported, but not freed by other port + */ + PERROR("Illegal event %d at state %d, please correct.\n", event, state); + } + 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_remote(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) + { + case B_STATE_ACTIVATING: + if (b_port && !p_m_remote_id) + { + /* bchannel is active and used by Port class, so we configure bchannel */ + _bchannel_configure(mISDNport, i); + state = B_STATE_ACTIVE; + } else + { + /* bchannel is active, but exported OR not used anymore (or has wrong stack config), so we deactivate */ + _bchannel_activate(mISDNport, i, 0); + state = B_STATE_DEACTIVATING; + timer = now_d + B_TIMER_DEACTIVATING; + } + break; + + default: + PERROR("Illegal event %d at state %d, please correct.\n", event, state); + } + break; + + case B_EVENT_EXPORTED: + switch(state) + { + case B_STATE_EXPORTING: + if (b_port && p_m_remote_ref && p_m_remote_ref==mISDNport->b_remote_ref[i]) + { + /* remote export done */ + state = B_STATE_REMOTE; + } else + { + /* bchannel is now exported, but we need bchannel back + * OR bchannel is not used anymore + * OR bchannel has been exported to an obsolete ref, + * so reimport, to later export to new remote */ + message_bchannel_to_remote(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; + + default: + PERROR("Illegal event %d at state %d, please correct.\n", event, state); + } + break; + + case B_EVENT_DROP: + if (!b_port) + FATAL("bchannel must be linked to a Port class\n"); + switch(state) + { + case B_STATE_IDLE: + /* bchannel is idle due to an error, so we do nothing */ + 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_ACTIVE: + /* bchannel is active, so we deactivate */ + _bchannel_activate(mISDNport, i, 0); + state = B_STATE_DEACTIVATING; + timer = now_d + B_TIMER_DEACTIVATING; + break; + + case B_STATE_REMOTE: + /* bchannel is exported, so we re-import */ + message_bchannel_to_remote(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_DEACTIVATED: + timer = 0; + switch(state) + { + case B_STATE_IDLE: + /* ignore due to deactivation confirm after unloading */ + break; + + case B_STATE_DEACTIVATING: + _bchannel_destroy(mISDNport, i); + state = B_STATE_IDLE; + if (b_port) + { + /* bchannel is now deactivate, but is requied by Port class, so we reactivate / export */ + if (p_m_remote_ref) + { + message_bchannel_to_remote(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"); + add_trace("channel", NULL, "%d.%d", portid>>8, portid&0xff); + end_trace(); + state = B_STATE_EXPORTING; + mISDNport->b_remote_id[i] = p_m_remote_id; + mISDNport->b_remote_ref[i] = p_m_remote_ref; + } else + { + if (_bchannel_create(mISDNport, i)) + { + _bchannel_activate(mISDNport, i, 1); + state = B_STATE_ACTIVATING; + timer = now_d + B_TIMER_ACTIVATING; + } + } + } + break; + + default: + PERROR("Illegal event %d at state %d, please correct.\n", event, state); + } + break; + + case B_EVENT_IMPORTED: + switch(state) + { + case B_STATE_IMPORTING: + state = B_STATE_IDLE; + mISDNport->b_remote_id[i] = 0; + mISDNport->b_remote_ref[i] = 0; + if (b_port) + { + /* bchannel is now imported, but is requied by Port class, so we reactivate / export */ + if (p_m_remote_ref) + { + message_bchannel_to_remote(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"); + add_trace("channel", NULL, "%d.%d", portid>>8, portid&0xff); + end_trace(); + state = B_STATE_EXPORTING; + mISDNport->b_remote_id[i] = p_m_remote_id; + mISDNport->b_remote_ref[i] = p_m_remote_ref; + } else + { + if (_bchannel_create(mISDNport, i)) + { + _bchannel_activate(mISDNport, i, 1); + state = B_STATE_ACTIVATING; + timer = now_d + B_TIMER_ACTIVATING; + } + } + } + break; + + default: + /* ignore, because not assigned */ + ; + } + break; + + case B_EVENT_TIMEOUT: + timer = 0; + switch(state) + { + case B_STATE_IDLE: + /* ignore due to deactivation confirm after unloading */ + break; + + case B_STATE_ACTIVATING: + _bchannel_activate(mISDNport, i, 1); + timer = now_d + B_TIMER_ACTIVATING; + break; + + case B_STATE_DEACTIVATING: + _bchannel_activate(mISDNport, i, 0); + timer = now_d + B_TIMER_DEACTIVATING; + break; + + default: + PERROR("Illegal event %d at state %d, please correct.\n", event, state); + } + break; + + default: + PERROR("Illegal event %d, please correct.\n", event); + } + + mISDNport->b_state[i] = state; + mISDNport->b_timer[i] = timer; +} + + + + +/* + * check for available channel and reserve+set it. + * give channel number or SEL_CHANNEL_ANY or SEL_CHANNEL_NO + * give exclusiv flag + * returns -(cause value) or x = channel x or 0 = no channel + * NOTE: no activation is done here + */ +int PmISDN::seize_bchannel(int channel, int exclusive) +{ + int i; + + /* the channel is what we have */ + if (p_m_b_channel == channel) + return(channel); + + /* if channel already in use, release it */ + if (p_m_b_channel) + drop_bchannel(); + + /* if CHANNEL_NO */ + if (channel==CHANNEL_NO || channel==0) + return(0); + + /* is channel in range ? */ + if (channel==16 + || (channel>p_m_mISDNport->b_num && channel<16) + || ((channel-1)>p_m_mISDNport->b_num && channel>16)) /* channel-1 because channel 16 is not counted */ + return(-6); /* channel unacceptable */ + + /* request exclusive channel */ + if (exclusive && channel>0) + { + i = channel-1-(channel>16); + if (p_m_mISDNport->b_port[i]) + return(-44); /* requested channel not available */ + goto seize; + } + + /* ask for channel */ + if (channel>0) + { + i = channel-1-(channel>16); + if (p_m_mISDNport->b_port[i] == NULL) + goto seize; + } + + /* search for channel */ + i = 0; + while(i < p_m_mISDNport->b_num) + { + if (!p_m_mISDNport->b_port[i]) + { + channel = i+1+(i>=15); + goto seize; + } + i++; + } + return(-34); /* no free channel */ + +seize: + PDEBUG(DEBUG_BCHANNEL, "PmISDN(%s) seizing bchannel %d (index %d)\n", p_name, channel, i); + + /* link Port */ + p_m_mISDNport->b_port[i] = this; + p_m_b_index = i; + p_m_b_channel = channel; + p_m_b_exclusive = exclusive; + + /* reserve channel */ + if (!p_m_b_reserve) + { + p_m_b_reserve = 1; + p_m_mISDNport->b_reserved++; + } + + return(channel); +} + +/* + * drop reserved channel and unset it. + * deactivation is also done + */ +void PmISDN::drop_bchannel(void) +{ + /* unreserve channel */ + if (p_m_b_reserve) + p_m_mISDNport->b_reserved--; + p_m_b_reserve = 0; + + /* if not in use */ + if (p_m_b_index < 0) + return; + if (!p_m_b_channel) + return; + + PDEBUG(DEBUG_BCHANNEL, "PmISDN(%s) dropping bchannel\n", p_name); + + if (p_m_mISDNport->b_state[p_m_b_index] != B_STATE_IDLE) + bchannel_event(p_m_mISDNport, p_m_b_index, B_EVENT_DROP); + p_m_mISDNport->b_port[p_m_b_index] = NULL; + p_m_b_index = -1; + p_m_b_channel = 0; + p_m_b_exclusive = 0; +} + +/* process bchannel export/import message from join */ +void message_bchannel_from_remote(class JoinRemote *joinremote, int type, unsigned int handle) +{ + class Endpoint *epoint; + class Port *port; + class PmISDN *isdnport; + struct mISDNport *mISDNport; + int i, ii; + + switch(type) + { + case BCHANNEL_REQUEST: + /* 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; + + /* assign */ + if (isdnport->p_m_remote_id) + { + PERROR("join %d recevied bchannel request from remote, but channel is already assinged.\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 = 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: + case BCHANNEL_ASSIGN_ACK: + case BCHANNEL_REMOVE_ACK: + /* find mISDNport for stack ID */ + mISDNport = mISDNport_first; + while(mISDNport) + { + i = 0; + ii = mISDNport->b_num; + while(i < ii) + { + if ((unsigned int)(mISDNport->portnum<<8)+i+1+(i>=15) == handle) + break; + i++; + } + if (i != ii) + break; + mISDNport = mISDNport->next; + } + if (!mISDNport) + { + PERROR("received assign/remove ack for bchannel's handle=%x, but handle does not exist in any mISDNport structure.\n", handle); + break; + } + + if (type!=BCHANNEL_RELEASE) + { + /* ack */ + 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(); + bchannel_event(mISDNport, i, (type==BCHANNEL_ASSIGN_ACK)?B_EVENT_EXPORTED:B_EVENT_IMPORTED); + } else + { + /* release */ + isdnport = mISDNport->b_port[i]; + chan_trace_header(mISDNport, isdnport, "MESSAGE_BCHANNEL (from remote application)", DIRECTION_NONE); + add_trace("type", NULL, "import request"); + end_trace(); + if (isdnport) + { + isdnport->p_m_remote_ref = 0; + isdnport->p_m_remote_id = 0; + } + bchannel_event(mISDNport, i, B_EVENT_IMPORTREQUEST); + } + break; + default: + PERROR("received wrong bchannel message type %d from remote\n", type); + } +} + + +/* + * handler + +audio transmission procedure: +----------------------------- + +* priority +three sources of audio transmission: +- crypto-data high priority +- tones high priority (also high) +- remote-data low priority + +* elapsed +a variable that temporarily shows the number of samples elapsed since last transmission process. +p_m_last_tv_* is used to store that last timestamp. this is used to calculate the time elapsed. + +* load +a variable that is increased whenever data is transmitted. +it is decreased while time elapses. it stores the number of samples that +are currently loaded to dsp module. +since clock in dsp module is the same clock for user space process, these +times have no skew. + +* levels +there are two levels: +ISDN_LOAD will give the load that have to be kept in dsp. +ISDN_MAXLOAD will give the maximum load before dropping. + +* procedure for low priority data +see txfromup() for procedure +in short: remote data is ignored during high priority tones + +* procedure for high priority data +whenever load is below ISDN_LOAD, load is filled up to ISDN_LOAD +if no more data is available, load becomes empty again. + +'load' variable: +0 ISDN_LOAD ISDN_MAXLOAD ++--------------------+----------------------+ +| | | ++--------------------+----------------------+ + +on empty load or on load below ISDN_LOAD, the load is inceased to ISDN_LOAD: +0 ISDN_LOAD ISDN_MAXLOAD ++--------------------+----------------------+ +|TTTTTTTTTTTTTTTTTTTT| | ++--------------------+----------------------+ + +on empty load, remote-audio causes the load with the remote audio to be increased to ISDN_LOAD. +0 ISDN_LOAD ISDN_MAXLOAD ++--------------------+----------------------+ +|TTTTTTTTTTTTTTTTTTTTRRRRR | ++--------------------+----------------------+ + + */ +int PmISDN::handler(void) +{ + struct lcr_msg *message; + int elapsed = 0; + int ret; + + if ((ret = Port::handler())) + return(ret); + + /* get elapsed */ + if (p_m_last_tv_sec) + { + elapsed = 8000 * (now_tv.tv_sec - p_m_last_tv_sec) + + 8 * (now_tv.tv_usec/1000 - p_m_last_tv_msec); + } else + { + /* set clock of first process ever in this instance */ + p_m_last_tv_sec = now_tv.tv_sec; + p_m_last_tv_msec = now_tv.tv_usec/1000; + } + /* process only if we have a minimum of samples, to make packets not too small */ + if (elapsed >= ISDN_TRANSMIT) + { + /* set clock of last process! */ + p_m_last_tv_sec = now_tv.tv_sec; + p_m_last_tv_msec = now_tv.tv_usec/1000; + + /* update load */ + if (elapsed < p_m_load) + p_m_load -= elapsed; + else + p_m_load = 0; + + /* to send data, tone must be active OR crypt messages must be on */ + if ((p_tone_name[0] || p_m_crypt_msg_loops) + && (p_m_load < ISDN_LOAD) + && (p_state==PORT_STATE_CONNECT || p_m_mISDNport->tones)) + { + int tosend = ISDN_LOAD - p_m_load, length; + unsigned char buf[MISDN_HEADER_LEN+tosend]; + struct mISDNhead *frm = (struct mISDNhead *)buf; + unsigned char *p = buf+MISDN_HEADER_LEN; + + /* copy crypto loops */ + while (p_m_crypt_msg_loops && tosend) + { + /* how much do we have to send */ + length = p_m_crypt_msg_len - p_m_crypt_msg_current; + + /* clip tosend */ + if (length > tosend) + length = tosend; + + /* copy message (part) to buffer */ + memcpy(p, p_m_crypt_msg+p_m_crypt_msg_current, length); + + /* new position */ + p_m_crypt_msg_current += length; + if (p_m_crypt_msg_current == p_m_crypt_msg_len) + { + /* next loop */ + p_m_crypt_msg_current = 0; + p_m_crypt_msg_loops--; +// puts("eine loop weniger"); + } + + /* new length */ + tosend -= length; + } + + /* copy tones */ + if (p_tone_name[0] && tosend) + { + tosend -= read_audio(p, tosend); + } + + /* send data */ + if (p_m_mISDNport->b_state[p_m_b_index] == B_STATE_ACTIVE && ISDN_LOAD-p_m_load-tosend > 0) + { + 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); + } + p_m_load += ISDN_LOAD - p_m_load - tosend; + } + } + + // NOTE: deletion is done by the child class + + /* handle timeouts */ if (p_m_timeout) { if (p_m_timer+p_m_timeout < now_d) @@ -593,8 +1340,8 @@ int PmISDN::handler(void) message = message_create(p_serial, ACTIVE_EPOINT(p_epointlist), PORT_TO_EPOINT, MESSAGE_TIMEOUT); message->param.state = p_state; message_put(message); + return(1); } - return(1); } return(0); /* nothing done */ @@ -604,77 +1351,104 @@ int PmISDN::handler(void) /* * whenever we get audio data from bchannel, we process it here */ -void PmISDN::bchannel_receive(iframe_t *frm) +void PmISDN::bchannel_receive(struct mISDNhead *hh, unsigned char *data, int len) { + unsigned int cont = *((unsigned int *)data); unsigned char *data_temp; - unsigned long length_temp; - struct message *message; - struct timeval tv; - struct timezone tz; - long long jitter_now; - int newlen; + unsigned int length_temp; + struct lcr_msg *message; unsigned char *p; int l; - unsigned long cont; -// iframe_t rsp; /* response to possible indication */ -#if 0 -#warning BCHANNEL-DEBUG -{ - // check if we are part of all ports */ - class Port *port = port_first; - while(port) - { - if (port==this) - break; - port=port->next; - } - if (!port) - { - PERROR_RUNTIME("**************************************************\n"); - PERROR_RUNTIME("*** BCHANNEL-DEBUG: !this! is not in list of ports\n"); - PERROR_RUNTIME("**************************************************\n"); - return; - } -} -#endif - - if (frm->prim == (PH_CONTROL | INDICATION)) + if (hh->prim == PH_CONTROL_IND) { - cont = *((unsigned long *)&frm->data.p); - // PDEBUG(DEBUG_PORT, "PmISDN(%s) received a PH_CONTROL INDICATION 0x%x\n", p_name, cont); + if (len < 4) + { + PERROR("SHORT READ OF PH_CONTROL INDICATION\n"); + return; + } if ((cont&(~DTMF_TONE_MASK)) == DTMF_TONE_VAL) { + chan_trace_header(p_m_mISDNport, this, "BCHANNEL control", DIRECTION_IN); + add_trace("DTMF", NULL, "%c", cont & DTMF_TONE_MASK); + end_trace(); message = message_create(p_serial, ACTIVE_EPOINT(p_epointlist), PORT_TO_EPOINT, MESSAGE_DTMF); message->param.dtmf = cont & DTMF_TONE_MASK; - PDEBUG(DEBUG_PORT, "PmISDN(%s) PH_CONTROL DTMF digit '%c'\n", p_name, message->param.dtmf); + PDEBUG(DEBUG_PORT, "PmISDN(%s) PH_CONTROL INDICATION DTMF digit '%c'\n", p_name, message->param.dtmf); message_put(message); + return; } switch(cont) { - case BF_REJECT: + case DSP_BF_REJECT: + chan_trace_header(p_m_mISDNport, this, "BCHANNEL control", DIRECTION_IN); + add_trace("DSP-CRYPT", NULL, "error"); + end_trace(); message = message_create(p_serial, ACTIVE_EPOINT(p_epointlist), PORT_TO_EPOINT, MESSAGE_CRYPT); message->param.crypt.type = CC_ERROR_IND; - PDEBUG(DEBUG_PORT, "PmISDN(%s) PH_CONTROL reject of blowfish.\n", p_name); + PDEBUG(DEBUG_PORT, "PmISDN(%s) PH_CONTROL INDICATION reject of blowfish.\n", p_name); message_put(message); break; - case BF_ACCEPT: + case DSP_BF_ACCEPT: + chan_trace_header(p_m_mISDNport, this, "BCHANNEL control", DIRECTION_IN); + add_trace("DSP-CRYPT", NULL, "ok"); + end_trace(); message = message_create(p_serial, ACTIVE_EPOINT(p_epointlist), PORT_TO_EPOINT, MESSAGE_CRYPT); message->param.crypt.type = CC_ACTBF_CONF; - PDEBUG(DEBUG_PORT, "PmISDN(%s) PH_CONTROL accept of blowfish.\n", p_name); + PDEBUG(DEBUG_PORT, "PmISDN(%s) PH_CONTROL INDICATION accept of blowfish.\n", p_name); message_put(message); break; + + default: + chan_trace_header(p_m_mISDNport, this, "BCHANNEL control", DIRECTION_IN); + add_trace("unknown", NULL, "0x%x", cont); + end_trace(); + } + return; + } + if (hh->prim == PH_CONTROL_IND) + { + switch(hh->id) + { + default: + chan_trace_header(p_m_mISDNport, this, "BCHANNEL control", DIRECTION_IN); + add_trace("unknown", NULL, "0x%x", hh->id); + end_trace(); + } + return; + } + if (hh->prim == PH_DATA_REQ || hh->prim == DL_DATA_REQ) + { + 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) + return; +// printf(".");fflush(stdout);return; + if (p_record) + record(data, len, 1); // from up + return; + } + if (hh->prim != PH_DATA_IND && hh->prim != DL_DATA_IND) + { + PERROR("Bchannel received unknown primitve: 0x%x\n", hh->prim); return; } /* calls will not process any audio data unless * the call is connected OR tones feature is enabled. */ +#ifndef DEBUG_COREBRIDGE if (p_state!=PORT_STATE_CONNECT - && !p_m_mISDNport->is_tones) + && !p_m_mISDNport->tones) return; +#endif #if 0 /* the bearer capability must be audio in order to send and receive @@ -691,34 +1465,34 @@ void PmISDN::bchannel_receive(iframe_t *frm) return; } + /* record data */ + if (p_record) + record(data, len, 0); // from down + /* randomize and listen to crypt message if enabled */ if (p_m_crypt_listen) { /* the noisy randomizer */ - p = (unsigned char *)&frm->data.p; - l = frm->len; + p = data; + l = len; while(l--) mISDN_rand[mISDN_rand_count & 0xff] += *p++; - cryptman_listen_bch((unsigned char *)&frm->data.p, frm->len); + cryptman_listen_bch(data, len); } - p = (unsigned char *)&frm->data.p; + p = data; /* send data to epoint */ - if (p_m_calldata && ACTIVE_EPOINT(p_epointlist)) /* only if we have an epoint object */ + if (p_m_joindata && ACTIVE_EPOINT(p_epointlist)) /* only if we have an epoint object */ { -//printf("we are port %s and sending to epoint %d\n", p_m_cardname, p_epoint->serial); - length_temp = frm->len; + length_temp = len; data_temp = p; while(length_temp) { message = message_create(p_serial, ACTIVE_EPOINT(p_epointlist), PORT_TO_EPOINT, MESSAGE_DATA); message->param.data.len = (length_temp>sizeof(message->param.data.data))?sizeof(message->param.data.data):length_temp; memcpy(message->param.data.data, data_temp, message->param.data.len); - message->param.data.compressed = 1; - message->param.data.port_id = p_serial; - message->param.data.port_type = p_type; message_put(message); if (length_temp <= sizeof(message->param.data.data)) break; @@ -726,15 +1500,6 @@ void PmISDN::bchannel_receive(iframe_t *frm) length_temp -= sizeof(message->param.data.data); } } -#if 0 - /* response to the data indication */ - rsp.prim = frm->prim & 0xfffffffc | RESPONSE; - rsp.addr = frm->addr & INST_ID_MASK | FLG_MSG_DOWN; - rsp.dinfo = frm->dinfo; - rsp.len = 0; - mISDN_write(mISDNdevice, &rsp, mISDN_HEADER_LEN+rsp.len, TIMEOUT_1SEC); -//PDEBUG(DEBUG_ISDN, "written %d bytes.\n", length); -#endif } @@ -749,7 +1514,7 @@ 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) - ph_control(p_m_b_addr, p_m_echo?CMX_ECHO_ON:CMX_ECHO_OFF, 0); + 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); } } @@ -774,10 +1539,11 @@ void PmISDN::set_tone(char *dir, char *tone) { nodsp: if (p_m_tone) + if (p_m_b_index > -1) 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); - ph_control(p_m_b_addr, TONE_PATT_OFF, 0); + ph_control(p_m_mISDNport, this, p_m_mISDNport->b_socket[p_m_b_index], DSP_TONE_PATT_OFF, 0, "DSP-TONE", 0); } p_m_tone = 0; Port::set_tone(dir, tone); @@ -857,9 +1623,9 @@ void PmISDN::set_tone(char *dir, char *tone) /* set new tone */ p_m_tone = id; PDEBUG(DEBUG_ISDN, "we set tone to id=%d.\n", p_m_tone); - if (p_m_b_channel) - if (p_m_mISDNport->b_state[p_m_b_index] == B_STATE_ACTIVE) - ph_control(p_m_b_addr, p_m_tone?TONE_PATT_ON:TONE_PATT_OFF, p_m_tone); + if (p_m_b_index > -1) + if (p_m_mISDNport->b_state[p_m_b_index] == B_STATE_ACTIVE) + 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); } /* turn user-space tones off in cases of no tone OR dsp tone */ Port::set_tone("",NULL); @@ -867,28 +1633,30 @@ void PmISDN::set_tone(char *dir, char *tone) /* MESSAGE_mISDNSIGNAL */ -//extern struct message *dddebug; -void PmISDN::message_mISDNsignal(unsigned long epoint_id, int message_id, union parameter *param) +//extern struct lcr_msg *dddebug; +void PmISDN::message_mISDNsignal(unsigned int epoint_id, int message_id, union parameter *param) { switch(param->mISDNsignal.message) { case mISDNSIGNAL_VOLUME: - if (p_m_txvol != param->mISDNsignal.txvol) + if (p_m_tx_gain != param->mISDNsignal.tx_gain) { - p_m_txvol = param->mISDNsignal.txvol; - PDEBUG(DEBUG_BCHANNEL, "we change tx-volume to shift=%d.\n", p_m_txvol); - if (p_m_b_channel) - if (p_m_mISDNport->b_state[p_m_b_index] == B_STATE_ACTIVE) - ph_control(p_m_b_addr, VOL_CHANGE_TX, p_m_txvol); - } - if (p_m_rxvol != param->mISDNsignal.rxvol) + p_m_tx_gain = param->mISDNsignal.tx_gain; + 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) + 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 + PDEBUG(DEBUG_BCHANNEL, "we already have tx-volume shift=%d.\n", p_m_rx_gain); + if (p_m_rx_gain != param->mISDNsignal.rx_gain) { - p_m_rxvol = param->mISDNsignal.rxvol; - PDEBUG(DEBUG_BCHANNEL, "we change rx-volume to shift=%d.\n", p_m_rxvol); - if (p_m_b_channel) - if (p_m_mISDNport->b_state[p_m_b_index] == B_STATE_ACTIVE) - ph_control(p_m_b_addr, VOL_CHANGE_RX, p_m_rxvol); - } + p_m_rx_gain = param->mISDNsignal.rx_gain; + 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) + 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 + PDEBUG(DEBUG_BCHANNEL, "we already have rx-volume shift=%d.\n", p_m_rx_gain); break; case mISDNSIGNAL_CONF: @@ -898,71 +1666,46 @@ void PmISDN::message_mISDNsignal(unsigned long epoint_id, int message_id, union { p_m_conf = param->mISDNsignal.conf; PDEBUG(DEBUG_BCHANNEL, "we change conference to conf=%d.\n", p_m_conf); - if (p_m_b_channel) - if (p_m_mISDNport->b_state[p_m_b_index] == B_STATE_ACTIVE) - ph_control(p_m_b_addr, (p_m_conf)?CMX_CONF_JOIN:CMX_CONF_SPLIT, p_m_conf); - } + if (p_m_b_index > -1) + if (p_m_mISDNport->b_state[p_m_b_index] == B_STATE_ACTIVE) + 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 + PDEBUG(DEBUG_BCHANNEL, "we already have conf=%d.\n", p_m_conf); /* we must set, even if currently tone forbids conf */ p_m_conf = param->mISDNsignal.conf; //if (dddebug) PDEBUG(DEBUG_ISDN, "dddebug = %d\n", dddebug->type); break; - case mISDNSIGNAL_CALLDATA: - if (p_m_calldata != param->mISDNsignal.calldata) + case mISDNSIGNAL_JOINDATA: + if (p_m_joindata != param->mISDNsignal.joindata) { - p_m_calldata = param->mISDNsignal.calldata; - PDEBUG(DEBUG_BCHANNEL, "we change to calldata=%d.\n", p_m_calldata); - auch senden - } + p_m_joindata = param->mISDNsignal.joindata; + PDEBUG(DEBUG_BCHANNEL, "we change to joindata=%d.\n", p_m_joindata); + } else + PDEBUG(DEBUG_BCHANNEL, "we already have joindata=%d.\n", p_m_joindata); break; -#if 0 - case mISDNSIGNAL_NODATA: - p_m_nodata = param->mISDNsignal.nodata; - if (p_m_txmix == p_m_nodata) /* txmix != !nodata */ - { - p_m_txmix = !p_m_nodata; - PDEBUG(DEBUG_BCHANNEL, "we change mix mode to txmix=%d (nodata=%d).\n", p_m_txmix, p_m_nodata); - if (p_m_b_channel) - if (p_m_mISDNport->b_state[p_m_b_index] == B_STATE_ACTIVE) - ph_control(p_m_b_addr, p_m_txmix?CMX_MIX_ON:CMX_MIX_OFF, 0); - } - break; -#endif - -#if 0 - case mISDNSIGNAL_RXOFF: - if (p_m_rxoff != param->mISDNsignal.rxoff) - { - p_m_rxoff = param->mISDNsignal.rxoff; - PDEBUG(DEBUG_BCHANNEL, "we change receive mode to rxoff=%d.\n", p_m_rxoff); - if (p_m_b_channel) - if (p_m_mISDNport->b_state[p_m_b_index] == B_STATE_ACTIVE) - ph_control(p_m_b_addr, p_m_rxoff?CMX_RECEIVE_OFF:CMX_RECEIVE_ON, 0); - } - break; - - case mISDNSIGNAL_DTMF: - if (p_m_dtmf != param->mISDNsignal.dtmf) + case mISDNSIGNAL_DELAY: + if (p_m_delay != param->mISDNsignal.delay) { - p_m_dtmf = param->mISDNsignal.dtmf; - PDEBUG(DEBUG_BCHANNEL, "we change dtmf mode to dtmf=%d.\n", p_m_dtmf); - if (p_m_b_channel) - if (p_m_mISDNport->b_state[p_m_b_index] == B_STATE_ACTIVE) - ph_control(p_m_b_addr, p_m_dtmf?DTMF_TONE_START:DTMF_TONE_STOP, 0); - } + p_m_delay = param->mISDNsignal.delay; + PDEBUG(DEBUG_BCHANNEL, "we change delay mode to delay=%d.\n", p_m_delay); + if (p_m_b_index > -1) + if (p_m_mISDNport->b_state[p_m_b_index] == B_STATE_ACTIVE) + 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 + PDEBUG(DEBUG_BCHANNEL, "we already have delay=%d.\n", p_m_delay); break; -#endif default: PERROR("PmISDN(%s) unsupported signal message %d.\n", p_name, param->mISDNsignal.message); } } /* MESSAGE_CRYPT */ -void PmISDN::message_crypt(unsigned long epoint_id, int message_id, union parameter *param) +void PmISDN::message_crypt(unsigned int epoint_id, int message_id, union parameter *param) { - struct message *message; + struct lcr_msg *message; switch(param->crypt.type) { @@ -980,9 +1723,9 @@ void PmISDN::message_crypt(unsigned long epoint_id, int message_id, union parame memcpy(p_m_crypt_key, param->crypt.data, p_m_crypt_key_len); crypt_off: PDEBUG(DEBUG_BCHANNEL, "we set encryption to crypt=%d. (0 means OFF)\n", p_m_crypt); - if (p_m_b_channel) - if (p_m_mISDNport->b_state[p_m_b_index] == B_STATE_ACTIVE) - ph_control_block(p_m_b_addr, p_m_crypt?BF_ENABLE_KEY:BF_DISABLE, p_m_crypt_key, p_m_crypt_key_len); + if (p_m_b_index > -1) + if (p_m_mISDNport->b_state[p_m_b_index] == B_STATE_ACTIVE) + 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); break; case CC_DACT_REQ: /* deactivate session encryption */ @@ -1007,13 +1750,13 @@ void PmISDN::message_crypt(unsigned long epoint_id, int message_id, union parame break; } p_m_crypt_msg_current = 0; /* reset */ - p_m_crypt_msg_loops = 3; /* enable */ + p_m_crypt_msg_loops = 6; /* enable */ #if 0 /* disable txmix, or we get corrupt data due to audio process */ - if (p_m_txmix) + 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); - ph_control(p_m_b_addr, CMX_MIX_OFF, 0); + ph_control(p_m_mISDNport, this, p_mISDNport->b_socket[p_m_b_index], DSP_MIX_OFF, 0, "DSP-TXMIX", 0); } #endif break; @@ -1027,13 +1770,17 @@ void PmISDN::message_crypt(unsigned long epoint_id, int message_id, union parame /* * endpoint sends messages to the port */ -int PmISDN::message_epoint(unsigned long epoint_id, int message_id, union parameter *param) +int PmISDN::message_epoint(unsigned int epoint_id, int message_id, union parameter *param) { if (Port::message_epoint(epoint_id, message_id, param)) return(1); switch(message_id) { + case MESSAGE_DATA: /* tx-data from upper layer */ + txfromup(param->data.data, param->data.len); + return(1); + case MESSAGE_mISDNSIGNAL: /* user command */ PDEBUG(DEBUG_ISDN, "PmISDN(%s) received special ISDN SIGNAL %d.\n", p_name, param->mISDNsignal.message); message_mISDNsignal(epoint_id, message_id, param); @@ -1050,49 +1797,48 @@ int PmISDN::message_epoint(unsigned long epoint_id, int message_id, union parame /* - * transmit function for data to mISDN b-channel - */ -void Port::transmit(unsigned char *buffer, int length) -{ -} - - -/* - * main loop for processing messages from mISDN device + * main loop for processing messages from mISDN */ int mISDN_handler(void) { - int ret; - msg_t *msg; - iframe_t *frm; + int ret, work = 0; struct mISDNport *mISDNport; class PmISDN *isdnport; - net_stack_t *nst; - msg_t *dmsg; - mISDNuser_head_t *hh; int i; + unsigned char buffer[2048+MISDN_HEADER_LEN]; + struct mISDNhead *hh = (struct mISDNhead *)buffer; + struct mbuffer *mb; + struct l3_msg *l3m; - /* the que avoids loopbacks when replying to stack after receiving - * from stack. */ + /* process all ports */ mISDNport = mISDNport_first; while(mISDNport) { - /* process turning on/off rx */ + /* process all bchannels */ i = 0; while(i < mISDNport->b_num) { - if (mISDNport->b_port[i] && mISDNport->b_state[i] == B_STATE_ACTIVE) + /* 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); + } + /* handle port of bchannel */ + isdnport=mISDNport->b_port[i]; + if (isdnport) { - isdnport=mISDNport->b_port[i]; - if (isdnport->p_m_calldata || isdnport->p_m_crypt_msg_loops || isdnport->p_m_crypt_listen || isdnport->p_record) + /* 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"); - ph_control(isdnport->p_m_b_addr, CMX_RECEIVE_ON, 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_socket[isdnport->p_m_b_index], DSP_RECEIVE_ON, 0, "DSP-RXOFF", 0); return(1); } } else @@ -1102,573 +1848,429 @@ int mISDN_handler(void) { /* turn off RX */ isdnport->p_m_rxoff = 1; - PDEBUG(DEBUG_BCHANNEL, "%s: receive data is not required, so we turn them off\n"); - ph_control(isdnport->p_m_b_addr, CMX_RECEIVE_OFF, 0); + 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_socket[isdnport->p_m_b_index], DSP_RECEIVE_OFF, 0, "DSP-RXOFF", 1); 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) - { - if (mISDNport->ntmode) + /* recording */ + if (isdnport->p_record) { - 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 { - PDEBUG(DEBUG_ISDN, "the L2 establish timer expired, we try to establish the link TE portnum=%d.\n", mISDNport->portnum); - time(&mISDNport->l2establish); - /* establish */ - iframe_t act; - 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); + /* 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__); + if (mISDNport->b_port[i] && mISDNport->b_state[i] == B_STATE_ACTIVE) + ph_control(mISDNport, isdnport, mISDNport->b_socket[isdnport->p_m_b_index], DSP_TXDATA_ON, 0, "DSP-TXDATA", 1); + 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__); + if (mISDNport->b_port[i] && mISDNport->b_state[i] == B_STATE_ACTIVE) + ph_control(mISDNport, isdnport, mISDNport->b_socket[isdnport->p_m_b_index], DSP_TXDATA_OFF, 0, "DSP-TXDATA", 0); + return(1); + } } - 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; - } - /* 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); - PERROR("FATAL ERROR: failed to do mISDN_read()\n"); - exit(-1); - } - if (!ret) - { - free_msg(msg); -// printf("%s: ERROR: mISDN_read() returns nothing\n"); - return(0); - } - msg->len = ret; - frm = (iframe_t *)msg->data; + /* handle message from bchannel */ + if (mISDNport->b_socket[i] > -1) + { + ret = recv(mISDNport->b_socket[i], buffer, sizeof(buffer), 0); + if (ret >= (int)MISDN_HEADER_LEN) + { + work = 1; + switch(hh->prim) + { + /* we don't care about confirms, we use rx data to sync tx */ + case PH_DATA_CNF: + break; - /* global prim */ - switch(frm->prim) - { - case MGR_INITTIMER | CONFIRM: - case MGR_ADDTIMER | CONFIRM: - case MGR_DELTIMER | CONFIRM: - case MGR_REMOVETIMER | CONFIRM: -// if (options.deb & DEBUG_ISDN) -// PDEBUG(DEBUG_ISDN, "timer-confirm\n"); - free_msg(msg); - return(1); - } + /* we receive audio data, we respond to it AND we send tones */ + case PH_DATA_IND: + case DL_DATA_IND: + case PH_DATA_REQ: + case DL_DATA_REQ: + case PH_CONTROL_IND: + if (mISDNport->b_port[i]) + mISDNport->b_port[i]->bchannel_receive(hh, buffer+MISDN_HEADER_LEN, ret-MISDN_HEADER_LEN); + else + PDEBUG(DEBUG_BCHANNEL, "b-channel is not associated to an ISDNPort (socket %d), ignoring.\n", mISDNport->b_socket[i]); + break; - /* find the port */ - mISDNport = mISDNport_first; - while(mISDNport) - { - if ((frm->prim==(MGR_TIMER | INDICATION)) && mISDNport->ntmode) - { - itimer_t *it = mISDNport->nst.tlist; + case PH_ACTIVATE_IND: + case DL_ESTABLISH_IND: + case PH_ACTIVATE_CNF: + case DL_ESTABLISH_CNF: + PDEBUG(DEBUG_BCHANNEL, "DL_ESTABLISH confirm: bchannel is now activated (socket %d).\n", mISDNport->b_socket[i]); + bchannel_event(mISDNport, i, B_EVENT_ACTIVATED); + break; - /* find timer */ - while(it) - { - if (it->id == (int)frm->addr) - break; - it = it->next; - } - if (it) - { - mISDN_write_frame(mISDNdevice, msg->data, mISDNport->upper_id | FLG_MSG_DOWN, - MGR_TIMER | RESPONSE, 0, 0, NULL, TIMEOUT_1SEC); + case PH_DEACTIVATE_IND: + case DL_RELEASE_IND: + case PH_DEACTIVATE_CNF: + case DL_RELEASE_CNF: + PDEBUG(DEBUG_BCHANNEL, "DL_RELEASE confirm: bchannel is now de-activated (socket %d).\n", mISDNport->b_socket[i]); + bchannel_event(mISDNport, i, B_EVENT_DEACTIVATED); + break; - PDEBUG(DEBUG_ISDN, "timer-indication %s port %d it=%p\n", (mISDNport->ntmode)?"NT":"TE", mISDNport->portnum, it); - test_and_clear_bit(FLG_TIMER_RUNING, (long unsigned int *)&it->Flags); - ret = it->function(it->data); - break; + default: + PERROR("child message not handled: prim(0x%x) socket(%d) msg->len(%d)\n", hh->prim, mISDNport->b_socket[i], ret-MISDN_HEADER_LEN); + } + } else + { + if (ret < 0 && errno != EWOULDBLOCK) + PERROR("Read from port %d, index %d failed with return code %d\n", mISDNport->portnum, i, ret); + } } - /* we will continue here because we have a timer for a different mISDNport */ + + i++; } -//printf("comparing frm->addr %x with upper_id %x\n", frm->addr, mISDNport->upper_id); - if ((frm->addr&STACK_ID_MASK) == (unsigned int)(mISDNport->upper_id&STACK_ID_MASK)) + + /* handle queued up-messages (d-channel) */ + while ((mb = mdequeue(&mISDNport->upqueue))) { - /* d-message */ - switch(frm->prim) + l3m = &mb->l3; + switch(l3m->type) { - case MGR_SHORTSTATUS | INDICATION: - case MGR_SHORTSTATUS | CONFIRM: - switch(frm->dinfo) { - case SSTATUS_L1_ACTIVATED: - PDEBUG(DEBUG_ISDN, "Received SSTATUS_L1_ACTIVATED for port %d (%s).\n", mISDNport->portnum, mISDNport->ifport->interface->name); - goto ss_act; - case SSTATUS_L1_DEACTIVATED: - PDEBUG(DEBUG_ISDN, "Received SSTATUS_L1_DEACTIVATED for port %d (%s).\n", mISDNport->portnum, mISDNport->ifport->interface->name); - goto ss_deact; - case SSTATUS_L2_ESTABLISHED: - PDEBUG(DEBUG_ISDN, "Received SSTATUS_L2_ESTABLISHED for port %d (%s).\n", mISDNport->portnum, mISDNport->ifport->interface->name); - goto ss_estab; - case SSTATUS_L2_RELEASED: - PDEBUG(DEBUG_ISDN, "Received SSTATUS_L2_RELEASED for port %d (%s).\n", mISDNport->portnum, mISDNport->ifport->interface->name); - goto ss_rel; - } - break; - - case PH_ACTIVATE | CONFIRM: - case PH_ACTIVATE | INDICATION: - PDEBUG(DEBUG_ISDN, "Received PH_ACTIVATED for port %d (%s).\n", mISDNport->portnum, mISDNport->ifport->interface->name); - if (mISDNport->ntmode) - { - mISDNport->l1link = 1; - setup_queue(mISDNport, 1); - goto l1_msg; - } - ss_act: + case MPH_ACTIVATE_IND: + l1l2l3_trace_header(mISDNport, NULL, L1_ACTIVATE_IND, DIRECTION_IN); + end_trace(); mISDNport->l1link = 1; - setup_queue(mISDNport, 1); break; - - case PH_DEACTIVATE | CONFIRM: - case PH_DEACTIVATE | INDICATION: - PDEBUG(DEBUG_ISDN, "Received PH_DEACTIVATED for port %d (%s).\n", mISDNport->portnum, mISDNport->ifport->interface->name); - if (mISDNport->ntmode) - { - mISDNport->l1link = 0; - setup_queue(mISDNport, 0); - goto l1_msg; - } - ss_deact: + + case MPH_DEACTIVATE_IND: + l1l2l3_trace_header(mISDNport, NULL, L1_DEACTIVATE_IND, DIRECTION_IN); + end_trace(); 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: -// PDEBUG(DEBUG_ISDN, "addr 0x%x established data link (DL) TE portnum=%d (DL_ESTABLISH)\n", frm->addr, mISDNport->portnum); - if (!mISDNport->ntmode) break; /* !!!!!!!!!!!!!!!! */ - ss_estab: -// if (mISDNport->ntmode) -// break; - if (mISDNport->l2establish) + case MPH_INFORMATION_IND: + PDEBUG(DEBUG_ISDN, "Received MPH_INFORMATION_IND for port %d (%s).\n", mISDNport->portnum, mISDNport->ifport->interface->name); + switch (l3m->pid) { - mISDNport->l2establish = 0; - PDEBUG(DEBUG_ISDN, "the link became active before l2establish timer expiry.\n"); + case L1_SIGNAL_LOS_ON: + mISDNport->los = 1; + break; + case L1_SIGNAL_LOS_OFF: + mISDNport->los = 0; + break; + case L1_SIGNAL_AIS_ON: + mISDNport->ais = 1; + break; + case L1_SIGNAL_AIS_OFF: + mISDNport->ais = 0; + break; + case L1_SIGNAL_RDI_ON: + mISDNport->rdi = 1; + break; + case L1_SIGNAL_RDI_OFF: + mISDNport->rdi = 0; + break; + case L1_SIGNAL_SLIP_TX: + mISDNport->slip_tx++; + break; + case L1_SIGNAL_SLIP_RX: + mISDNport->slip_rx++; + break; } - mISDNport->l2link = 1; break; - case DL_RELEASE | INDICATION: - case DL_RELEASE | CONFIRM: -// PDEBUG(DEBUG_ISDN, "addr 0x%x released data link (DL) TE portnum=%d (DL_RELEASE)\n", frm->addr, mISDNport->portnum); - if (!mISDNport->ntmode) break; /* !!!!!!!!!!!!!!!! */ - ss_rel: -// if (mISDNport->ntmode) -// break; - mISDNport->l2link = 0; - if (mISDNport->ptp) + case MT_L2ESTABLISH: + l1l2l3_trace_header(mISDNport, NULL, L2_ESTABLISH_IND, DIRECTION_IN); + add_trace("tei", NULL, "%d", l3m->pid); + end_trace(); + if ((!mISDNport->ntmode || mISDNport->ptp) && l3m->pid < 127) { - time(&mISDNport->l2establish); - PDEBUG(DEBUG_ISDN, "because we are ptp, we set a l2establish timer.\n"); + if (mISDNport->l2establish) + { + mISDNport->l2establish = 0; + PDEBUG(DEBUG_ISDN, "the link became active before l2establish timer expiry.\n"); + } + mISDNport->l2link = 1; } 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)) + case MT_L2RELEASE: + if (!mISDNport->l2establish) { - PERROR("SERIOUS BUG, dinfo == 0xffffffff, prim == PH_DATA | CONFIRM !!!!\n"); + l1l2l3_trace_header(mISDNport, NULL, L2_RELEASE_IND, DIRECTION_IN); + add_trace("tei", NULL, "%d", l3m->pid); + end_trace(); } - /* 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 + if ((!mISDNport->ntmode || mISDNport->ptp) && l3m->pid < 127) { - /* l3-data is sent to pbx */ - if (stack2manager_te(mISDNport, msg)) - free_msg(msg); - return(1); + mISDNport->l2link = 0; + if (!mISDNport->l2establish && mISDNport->l2hold) + { + PDEBUG(DEBUG_ISDN, "set timer and establish.\n"); + time(&mISDNport->l2establish); + mISDNport->ml3->to_layer3(mISDNport->ml3, MT_L2ESTABLISH, 0, NULL); + } } - } - break; - } -//PDEBUG(DEBUG_ISDN, "flg:%d upper_id=%x addr=%x\n", (frm->addr&FLG_CHILD_STACK), (mISDNport->b_addr[0])&(~IF_CHILDMASK), (frm->addr)&(~IF_CHILDMASK)); - /* check if child, and if parent stack match */ - if ((frm->addr&FLG_CHILD_STACK) && (((unsigned int)(mISDNport->b_addr[0])&(~CHILD_ID_MASK)&STACK_ID_MASK) == ((frm->addr)&(~CHILD_ID_MASK)&STACK_ID_MASK))) - { - /* 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: - 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 (address 0x%x).\n", 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; + default: + /* l3-data is sent to LCR */ + stack2manager(mISDNport, l3m->type, l3m->pid, l3m); + } + /* free message */ + free_l3_msg(l3m); + } - 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 (address 0x%x).\n", frm->addr); - break; - } - mISDNport->b_state[i] = B_STATE_ACTIVE; - if (!mISDNport->b_port[i]) - bchannel_deactivate(mISDNport, i); - else - bchannel_activate(mISDNport, i); - break; +#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 - 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) + /* layer 2 establish timer */ + if (mISDNport->l2establish) + { + if (now-mISDNport->l2establish > 5) + { + mISDNport->l2establish = 0; + if (mISDNport->l2hold && (mISDNport->ptp || !mISDNport->ntmode)) { - PERROR("unhandled b-release (address 0x%x).\n", frm->addr); - break; + + PDEBUG(DEBUG_ISDN, "the L2 establish timer expired, we try to establish the link portnum=%d.\n", mISDNport->portnum); + mISDNport->ml3->to_layer3(mISDNport->ml3, MT_L2ESTABLISH, 0, NULL); + time(&mISDNport->l2establish); + return(1); } - mISDNport->b_state[i] = B_STATE_IDLE; - if (mISDNport->b_port[i]) - bchannel_activate(mISDNport, i); - else - bchannel_deactivate(mISDNport, i); - break; } - break; } + mISDNport = mISDNport->next; - } - if (!mISDNport) - { - if (frm->prim == (MGR_TIMER | INDICATION)) - PERROR("unhandled timer indication message: prim(0x%x) addr(0x%x) msg->len(%d)\n", frm->prim, frm->addr, msg->len); - else - PERROR("unhandled message: prim(0x%x) addr(0x%x) msg->len(%d)\n", frm->prim, frm->addr, msg->len); -// PERROR("test: is_child: %x of stack %x == %x (baddr %x frm %x)\n", (frm->addr&FLG_CHILD_STACK), ((unsigned int)(mISDNport_first->b_addr[0])&(~CHILD_ID_MASK)&STACK_ID_MASK), ((frm->addr)&(~CHILD_ID_MASK)&STACK_ID_MASK), mISDNport_first->b_addr[0], frm->addr); } - free_msg(msg); - return(1); + /* if we received at least one b-frame, we will return 1 */ + return(work); +} + +int do_layer3(struct mlayer3 *ml3, unsigned int cmd, unsigned int pid, struct l3_msg *l3m) +{ + /* IMPORTAINT: + * + * l3m must be queued, except for MT_ASSIGN + * + */ + struct mISDNport *mISDNport = (struct mISDNport *)ml3->priv; + struct mbuffer *mb; + + /* special MT_ASSIGN handling: + * + * if we request a PID from mlayer, we always do it while lcr is locked. + * therefore we must check the MT_ASSIGN reply first before we lock. + * this is because the MT_ASSIGN reply is received with the requesting + * process, not by the mlayer thread! + * this means, that the reply is sent during call of the request. + * we must check if we get a reply and we know that we lcr is currently + * locked. + */ + if (cmd==MT_ASSIGN && (pid&MISDN_PID_CR_FLAG) && (pid>>16)==MISDN_CES_MASTER) + { + /* let's do some checking if someone changes stack behaviour */ + if (mt_assign_pid != 0) + FATAL("someone played with the mISDNuser stack. MT_ASSIGN not currently expected.\n"); + mt_assign_pid = pid; + return(0); + } + + /* queue message, create, if required */ + if (!l3m) + { + l3m = alloc_l3_msg(); + if (!l3m) + FATAL("No memory for layer 3 message\n"); + } + mb = container_of(l3m, struct mbuffer, l3); + l3m->type = cmd; + l3m->pid = pid; + mqueue_tail(&mISDNport->upqueue, mb); + return 0; } /* * global function to add a new card (port) */ -struct mISDNport *mISDN_port_open(int port, int ptp, int ptmp) +struct mISDNport *mISDNport_open(int port, int ptp, int force_nt, int l2hold, struct interface *interface) { int ret; - unsigned char buff[1025]; - iframe_t *frm = (iframe_t *)buff; - stack_info_t *stinf; struct mISDNport *mISDNport, **mISDNportp; int i, cnt; - layer_info_t li; -// interface_info_t ii; - net_stack_t *nst; - manager_t *mgr; - mISDN_pid_t pid; - int pri = 0; - int nt = 0; - iframe_t dact; - - /* open mISDNdevice if not already open */ - if (mISDNdevice < 0) - { - ret = mISDN_open(); - if (ret < 0) - { - PERROR("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(NULL); - } - mISDNdevice = ret; - PDEBUG(DEBUG_ISDN, "mISDN device opened.\n"); + int pri, bri, pots; + int nt, te; +// struct mlayer3 *ml3; + struct mISDN_devinfo devinfo; + unsigned int protocol, prop; - /* 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: - fprintf(stderr, "cannot request MGR_NEWENTITY from mISDN. Exitting due to software bug."); - exit(-1); - } - entity = frm->dinfo & 0xffff; - if (!entity) - goto noentity; - PDEBUG(DEBUG_ISDN, "our entity for l3-processes is %d.\n", entity); + ret = ioctl(mISDNsocket, IMGETCOUNT, &cnt); + if (ret < 0) + { + fprintf(stderr, "Cannot get number of mISDN devices. (ioctl IMGETCOUNT failed ret=%d)\n", ret); + return(NULL); } - /* query port's requirements */ - cnt = mISDN_get_stack_count(mISDNdevice); if (cnt <= 0) { - PERROR("Found no card. Please be sure to load card drivers.\n"); + PERROR_RUNTIME("Found no card. Please be sure to load card drivers.\n"); return(NULL); } if (port>cnt || port<1) { - PERROR("Port (%d) given at 'ports' (options.conf) is out of existing port range (%d-%d)\n", port, 1, cnt); + PERROR_RUNTIME("Port (%d) given at 'ports' (options.conf) is out of existing port range (%d-%d)\n", port, 1, cnt); return(NULL); } - ret = mISDN_get_stack_info(mISDNdevice, port, buff, sizeof(buff)); + + pri = bri = pots = nt = te = 0; + devinfo.id = port - 1; + ret = ioctl(mISDNsocket, IMGETDEVINFO, &devinfo); if (ret < 0) { - PERROR("Cannot get stack info for port %d (ret=%d)\n", port, ret); + PERROR_RUNTIME("Cannot get device information for port %d. (ioctl IMGETDEVINFO failed ret=%d)\n", i, ret); return(NULL); } - stinf = (stack_info_t *)&frm->data.p; - switch(stinf->pid.protocol[0] & ~ISDN_PID_FEATURE_MASK) + /* output the port info */ + if (devinfo.Dprotocols & (1 << ISDN_P_TE_S0)) { - 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_U: - PDEBUG(DEBUG_ISDN, "TE-mode BRI U interface line\n"); - break; - case ISDN_PID_L0_NT_U: - PDEBUG(DEBUG_ISDN, "NT-mode BRI U interface port\n"); - nt = 1; - break; - case ISDN_PID_L0_TE_UP2: - PDEBUG(DEBUG_ISDN, "TE-mode BRI Up2 interface line\n"); - break; - case ISDN_PID_L0_NT_UP2: - PDEBUG(DEBUG_ISDN, "NT-mode BRI Up2 interface port\n"); + bri = 1; + te = 1; + } + if (devinfo.Dprotocols & (1 << ISDN_P_NT_S0)) + { + bri = 1; nt = 1; - break; - case ISDN_PID_L0_TE_E1: - PDEBUG(DEBUG_ISDN, "TE-mode PRI E1 interface line\n"); + } + if (devinfo.Dprotocols & (1 << ISDN_P_TE_E1)) + { pri = 1; - break; - case ISDN_PID_L0_NT_E1: - PDEBUG(DEBUG_ISDN, "LT-mode PRI E1 interface port\n"); + te = 1; + } + if (devinfo.Dprotocols & (1 << ISDN_P_NT_E1)) + { pri = 1; nt = 1; - break; - default: - PERROR("unknown port(%d) type 0x%08x\n", port, stinf->pid.protocol[0]); - return(NULL); } - if (nt) +#ifdef ISDN_P_FXS + if (devinfo.Dprotocols & (1 << ISDN_P_FXS)) { - /* NT */ - if (stinf->pid.protocol[1] == 0) - { - PERROR("Given port %d: Missing layer 1 NT-mode protocol.\n", port); - return(NULL); - } - if (stinf->pid.protocol[2]) - { - PERROR("Given port %d: Layer 2 protocol 0x%08x is detected, but not allowed for NT lib.\n", port, stinf->pid.protocol[2]); - return(NULL); - } - } else + pots = 1; + te = 1; + } +#endif +#ifdef ISDN_P_FXO + if (devinfo.Dprotocols & (1 << ISDN_P_FXO)) { - /* TE */ - if (stinf->pid.protocol[1] == 0) - { - PERROR("Given port %d: Missing layer 1 protocol.\n", port); - return(NULL); - } - if (stinf->pid.protocol[2] == 0) - { - PERROR("Given port %d: Missing layer 2 protocol.\n", port); - return(NULL); - } - if (stinf->pid.protocol[3] == 0) - { - PERROR("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("Given port %d: own protocol 0x%08x", port,stinf->pid.protocol[3]); - return(NULL); - } - } - if (stinf->pid.protocol[4]) - { - PERROR("Given port %d: Layer 4 protocol not allowed.\n", port); - return(NULL); - } + pots = 1; + nt = 1; } - - /* add mISDNport structure */ - mISDNportp = &mISDNport_first; - while(*mISDNportp) - mISDNportp = &mISDNport->next; - mISDNport = (struct mISDNport *)calloc(1, sizeof(struct mISDNport)); - if (!mISDNport) +#endif + if (force_nt && !nt) { - PERROR("Cannot alloc mISDNport structure\n"); + PERROR_RUNTIME("Port %d does not support NT-mode\n", port); return(NULL); } - pmemuse++; - memset(mISDNport, 0, sizeof(mISDNport)); - *mISDNportp = mISDNport; - - /* allocate ressources of port */ - msg_queue_init(&mISDNport->downqueue); -// SCPY(mISDNport->name, "noname"); - mISDNport->portnum = port; - mISDNport->ntmode = nt; - mISDNport->pri = pri; - mISDNport->d_stid = stinf->id; - PDEBUG(DEBUG_ISDN, "d_stid = 0x%x.\n", mISDNport->d_stid); - mISDNport->b_num = stinf->childcnt; - PDEBUG(DEBUG_ISDN, "Port has %d b-channels.\n", mISDNport->b_num); - if ((stinf->pid.protocol[2]&ISDN_PID_L2_DF_PTP) || (nt&&ptp) || pri) + if (bri && pri) { - PDEBUG(DEBUG_ISDN, "Port is point-to-point.\n"); - mISDNport->ptp = ptp = 1; - if (ptmp && nt) - { - PDEBUG(DEBUG_ISDN, "Port is forced to point-to-multipoint.\n"); - mISDNport->ptp = ptp = 0; - } + PERROR_RUNTIME("Port %d supports BRI and PRI?? What kind of controller is that?. (Can't use this!)\n", port); + return(NULL); } - i = 0; - while(i < stinf->childcnt) + if (pots && !bri && !pri) { - mISDNport->b_stid[i] = stinf->child[i]; - PDEBUG(DEBUG_ISDN, "b_stid[%d] = 0x%x.\n", i, mISDNport->b_stid[i]); - i++; - } - 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); + PERROR_RUNTIME("Port %d supports POTS, LCR does not!\n", port); return(NULL); } - mISDNport->upper_id = li.id; - ret = mISDN_register_layer(mISDNdevice, mISDNport->d_stid, mISDNport->upper_id); - if (ret) + if (!bri && !pri) { - PERROR("Cannot register layer %d of port %d\n", nt?2:4, port); - goto closeport; + PERROR_RUNTIME("Port %d does not support BRI nor PRI!\n", port); + return(NULL); } - 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) + if (!nt && !te) { - PERROR("Cannot get layer(%d) id of port %d\n", nt?1:3, port); - goto closeport; + PERROR_RUNTIME("Port %d does not support NT-mode nor TE-mode!\n", port); + return(NULL); } - 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) + /* set NT by turning off TE */ + if (force_nt && nt) + te = 0; + /* if TE an NT is supported (and not forced to NT), turn off NT */ + if (te && nt) + nt = 0; + + /* add mISDNport structure */ + mISDNportp = &mISDNport_first; + while(*mISDNportp) + mISDNportp = &((*mISDNportp)->next); + mISDNport = (struct mISDNport *)MALLOC(sizeof(struct mISDNport)); + mISDNport->l1link = -1; + pmemuse++; + *mISDNportp = mISDNport; + + /* if pri, must set PTP */ + if (pri) + ptp = 1; + + /* set l2hold */ + switch (l2hold) { - PERROR("Cannot get layer(%d) id of port %d\n", nt?2:4, port); - goto closeport; + case -1: // off + l2hold = 0; + break; + case 1: // on + l2hold = 1; + break; + default: + if (ptp) + l2hold = 1; + else + l2hold = 0; + break; + } + + /* allocate ressources of port */ + /* open layer 3 and init upqueue */ + protocol = (nt)?L3_PROTOCOL_DSS1_NET:L3_PROTOCOL_DSS1_USER; + prop = (1 << MISDN_FLG_L2_CLEAN); + if (ptp) // ptp forced + prop |= (1 << MISDN_FLG_PTP); + if (nt) // supports hold/retrieve on nt-mode + prop |= (1 << MISDN_FLG_NET_HOLD); + if (l2hold) // supports layer 2 hold + prop |= (1 << MISDN_FLG_L2_HOLD); + /* queue must be initializes, because l3-thread may send messages during open_layer3() */ + mqueue_init(&mISDNport->upqueue); + mISDNport->ml3 = open_layer3(port-1, protocol, prop , do_layer3, mISDNport); + if (!mISDNport->ml3) + { + mqueue_purge(&mISDNport->upqueue); + PERROR_RUNTIME("open_layer3() failed for port %d\n", port); + start_trace(port, + interface, + NULL, + NULL, + DIRECTION_NONE, + CATEGORY_CH, + 0, + "PORT (open failed)"); + end_trace(); + mISDNport_close(mISDNport); + return(NULL); } - PDEBUG(DEBUG_ISDN, "Layer %d of port %d added.\n", nt?2:4, port); +#if 0 /* if ntmode, establish L1 to send the tei removal during start */ if (mISDNport->ntmode) { @@ -1682,145 +2284,50 @@ struct mISDNport *mISDN_port_open(int port, int ptp, int ptmp) 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); - } - - /* 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->ptp && !mISDNport->ntmode) + SCPY(mISDNport->name, devinfo.name); + mISDNport->b_num = devinfo.nrbchan; + mISDNport->portnum = port; + mISDNport->ntmode = nt; + mISDNport->pri = pri; + mISDNport->ptp = ptp; + mISDNport->l2hold = l2hold; + PDEBUG(DEBUG_ISDN, "Port has %d b-channels.\n", mISDNport->b_num); + i = 0; + while(i < mISDNport->b_num) { - 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); + mISDNport->b_state[i] = B_STATE_IDLE; + mISDNport->b_socket[i] = -1; + i++; } - /* if ptp AND nt-mode, pull up the link */ - if (mISDNport->ptp && mISDNport->ntmode) + + /* if ptp, pull up the link */ + if (mISDNport->l2hold && (mISDNport->ptp || !mISDNport->ntmode)) { - msg_t *dmsg; - /* L2 */ - dmsg = create_l2msg(DL_ESTABLISH | REQUEST, 0, 0); - if (mISDNport->nst.manager_l3(&mISDNport->nst, dmsg)) - free_msg(dmsg); + mISDNport->ml3->to_layer3(mISDNport->ml3, MT_L2ESTABLISH, 0, NULL); + l1l2l3_trace_header(mISDNport, NULL, L2_ESTABLISH_REQ, DIRECTION_OUT); + add_trace("tei", NULL, "%d", 0); + end_trace(); + time(&mISDNport->l2establish); } + /* initially, we assume that the link is down, exept for nt-ptmp */ mISDNport->l2link = (mISDNport->ntmode && !mISDNport->ptp)?1:0; PDEBUG(DEBUG_BCHANNEL, "using 'mISDN_dsp.o' module\n"); - /* add all bchannel layers */ - i = 0; - while(i < mISDNport->b_num) - { - /* create new layer */ - PDEBUG(DEBUG_BCHANNEL, "creating 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 closeport; - } - 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); - mISDNport->b_addr[i] = 0; -// mISDNport->b_addr_low[i] = 0; - goto closeport; - } - 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; - /* deactivate bchannel if already enabled due to crash */ - PDEBUG(DEBUG_BCHANNEL, "deactivating bchannel (index %d) as a precaution.\n", i); - dact.prim = DL_RELEASE | REQUEST; - dact.addr = mISDNport->b_addr[i] | FLG_MSG_DOWN; - dact.dinfo = 0; - dact.len = 0; - mISDN_write(mISDNdevice, &dact, mISDN_HEADER_LEN+dact.len, TIMEOUT_1SEC); - - i++; - } - PDEBUG(DEBUG_ISDN, "- port %d %s (%s) %d b-channels\n", mISDNport->portnum, (mISDNport->ntmode)?"NT-mode":"TE-mode", (mISDNport->ptp)?"Point-To-Point":"Multipoint", mISDNport->b_num); - printlog("opening port %d %s (%s) %d b-channels\n", mISDNport->portnum, (mISDNport->ntmode)?"NT-mode":"TE-mode", (mISDNport->ptp)?"Point-To-Point":"Multipoint", mISDNport->b_num); + start_trace(mISDNport->portnum, + interface, + NULL, + NULL, + DIRECTION_NONE, + CATEGORY_CH, + 0, + "PORT (open)"); + add_trace("mode", NULL, (mISDNport->ntmode)?"network":"terminal"); + add_trace("channels", NULL, "%d", mISDNport->b_num); + end_trace(); return(mISDNport); } @@ -1842,9 +2349,7 @@ void mISDNport_close(struct mISDNport *mISDNport) { struct mISDNport **mISDNportp; class Port *port; - classs PmISDN *pmISDN; - net_stack_t *nst; - unsigned char buf[32]; + class PmISDN *isdnport; int i; /* remove all port instance that are linked to this mISDNport */ @@ -1853,59 +2358,47 @@ void mISDNport_close(struct mISDNport *mISDNport) { if ((port->p_type&PORT_CLASS_MASK) == PORT_CLASS_mISDN) { - pmISDN = (class PmISDN)*port; - if (pmISDN->p_m_mISDNport) + isdnport = (class PmISDN *)port; + if (isdnport->p_m_mISDNport) { - PDEBUG(DEBUG_ISDN, "port %s uses mISDNport %d, destroying it.\n", pnISDN->p_name, mISDNport->portnum); - delete pmISDN; + PDEBUG(DEBUG_ISDN, "port %s uses mISDNport %d, destroying it.\n", isdnport->p_name, mISDNport->portnum); + delete isdnport; } } port = port->next; } - printlog("closing port %d\n", mISDNport->portnum); + /* only if we are already part of interface */ + if (mISDNport->ifport) + { + start_trace(mISDNport->portnum, + mISDNport->ifport->interface, + NULL, + NULL, + DIRECTION_NONE, + CATEGORY_CH, + 0, + "PORT (close)"); + end_trace(); + } /* free bchannels */ i = 0; while(i < mISDNport->b_num) { - bchannel_deactivate(mISDNport, i); - PDEBUG(DEBUG_BCHANNEL, "freeing %s port %d bchannel (index %d).\n", (mISDNport->ntmode)?"NT":"TE", mISDNport->portnum, i); - if (mISDNport->b_stid[i]) + if (mISDNport->b_socket[i] > -1) { - mISDN_clear_stack(mISDNdevice, mISDNport->b_stid[i]); - if (mISDNport->b_addr[i]) - mISDN_write_frame(mISDNdevice, buf, mISDNport->b_addr[i] | FLG_MSG_DOWN, MGR_DELLAYER | REQUEST, 0, 0, NULL, TIMEOUT_1SEC); + _bchannel_destroy(mISDNport, i); + PDEBUG(DEBUG_BCHANNEL, "freeing %s port %d bchannel (index %d).\n", (mISDNport->ntmode)?"NT":"TE", mISDNport->portnum, i); } i++; } - /* 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); - } - } - - PDEBUG(DEBUG_BCHANNEL, "freeing d-stack.\n"); - if (mISDNport->d_stid) + /* close layer 3, if open and purge upqueue */ + if (mISDNport->ml3) { -// mISDN_clear_stack(mISDNdevice, mISDNport->d_stid); - if (mISDNport->lower_id) - mISDN_write_frame(mISDNdevice, buf, mISDNport->lower_id, MGR_DELLAYER | REQUEST, 0, 0, NULL, TIMEOUT_1SEC); + close_layer3(mISDNport->ml3); + mqueue_purge(&mISDNport->upqueue); } /* remove from list */ @@ -1915,218 +2408,69 @@ void mISDNport_close(struct mISDNport *mISDNport) if (*mISDNportp == mISDNport) { *mISDNportp = (*mISDNportp)->next; + mISDNportp = NULL; break; } mISDNportp = &((*mISDNportp)->next); } - if (!(*mISDNportp)) - { - PERROR("software error, mISDNport not in list\n"); - exit(-1); - } + if (mISDNportp) + FATAL("mISDNport not in list\n"); - memset(mISDNport, 0, sizeof(struct mISDNport)); - free(mISDNport); + FREE(mISDNport, sizeof(struct mISDNport)); pmemuse--; - /* close mISDNdevice, if no port */ - if (mISDNdevice>=0 && mISDNport_first==NULL) - { - /* free entity */ - mISDN_write_frame(mISDNdevice, buf, 0, MGR_DELENTITY | REQUEST, entity, 0, NULL, TIMEOUT_1SEC); - /* close device */ - mISDN_close(mISDNdevice); - mISDNdevice = -1; - PDEBUG(DEBUG_ISDN, "mISDN device closed.\n"); - } } /* - * global function to show all available isdn ports + * enque data from upper buffer */ -void mISDN_port_info(void) +void PmISDN::txfromup(unsigned char *data, int length) { - int err; - int i, ii, p; - int useable, nt, pri; - 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(-1); - } - - /* get number of stacks */ - i = 1; - ii = mISDN_get_stack_count(device); - printf("\n"); - if (ii <= 0) - { - printf("Found no card. Please be sure to load card drivers.\n"); - } - - /* loop the number of cards and get their info */ - while(i <= ii) - { - err = mISDN_get_stack_info(device, i, buff, sizeof(buff)); - if (err <= 0) - { - fprintf(stderr, "mISDN_get_stack_info() failed: port=%d err=%d\n", i, err); - break; - } - stinf = (stack_info_t *)&frm->data.p; - - nt = pri = 0; - useable = 1; - - /* output the port info */ - printf("Port %2d: ", i); - switch(stinf->pid.protocol[0] & ~ISDN_PID_FEATURE_MASK) - { - case ISDN_PID_L0_TE_S0: - printf("TE-mode BRI S/T interface line (for phone lines)"); -#if 0 - if (stinf->pid.protocol[0] & ISDN_PID_L0_TE_S0_HFC & ISDN_PID_FEATURE_MASK) - printf(" HFC multiport card"); -#endif - break; - case ISDN_PID_L0_NT_S0: - nt = 1; - printf("NT-mode BRI S/T interface port (for phones)"); -#if 0 - if (stinf->pid.protocol[0] & ISDN_PID_L0_NT_S0_HFC & ISDN_PID_FEATURE_MASK) - printf(" HFC multiport card"); -#endif - break; - case ISDN_PID_L0_TE_U: - printf("TE-mode BRI U interface line"); - break; - case ISDN_PID_L0_NT_U: - nt = 1; - printf("NT-mode BRI U interface port"); - break; - case ISDN_PID_L0_TE_UP2: - printf("TE-mode BRI Up2 interface line"); - break; - case ISDN_PID_L0_NT_UP2: - nt = 1; - printf("NT-mode BRI Up2 interface port"); - break; - case ISDN_PID_L0_TE_E1: - pri = 1; - printf("TE-mode PRI E1 interface line (for phone lines)"); -#if 0 - if (stinf->pid.protocol[0] & ISDN_PID_L0_TE_E1_HFC & ISDN_PID_FEATURE_MASK) - printf(" HFC-E1 card"); -#endif - break; - case ISDN_PID_L0_NT_E1: - nt = 1; - pri = 1; - printf("NT-mode PRI E1 interface port (for phones)"); -#if 0 - if (stinf->pid.protocol[0] & ISDN_PID_L0_NT_E1_HFC & ISDN_PID_FEATURE_MASK) - printf(" HFC-E1 card"); -#endif - 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, but not allowed for NT lib.\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"); - } - } else - { - 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, but not allowed for TE lib.\n", p, stinf->pid.protocol[p]); - } - p++; - } - } - printf(" - %d B-channels\n", stinf->childcnt); + unsigned char buf[MISDN_HEADER_LEN+((length>ISDN_LOAD)?length:ISDN_LOAD)]; + struct mISDNhead *hh = (struct mISDNhead *)buf; + int ret; - if (!useable) - printf(" * Port NOT useable for PBX\n"); + if (p_m_b_index < 0) + return; + if (p_m_mISDNport->b_state[p_m_b_index] != B_STATE_ACTIVE) + return; - printf("--------\n"); + /* check if high priority tones exist + * ignore data in this case + */ + if (p_tone_name[0] || p_m_crypt_msg_loops) + return; - i++; + /* preload procedure + * if transmit buffer in DSP module is empty, + * preload it to DSP_LOAD to prevent jitter gaps. + */ + if (p_m_load==0 && ISDN_LOAD>0) + { + 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]); + p_m_load += ISDN_LOAD; } - printf("\n"); - /* close mISDN */ - if ((err = mISDN_close(device))) - { - fprintf(stderr, "mISDN_close() failed: err=%d '%s'\n", err, strerror(err)); - exit(-1); - } -} + /* drop if load would exceed ISDN_MAXLOAD + * this keeps the delay not too high + */ + if (p_m_load+length > ISDN_MAXLOAD) + return; + /* make and send frame */ + 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]); + p_m_load += length; +}