diff options
author | Kevin P. Fleming <kpfleming@digium.com> | 2005-10-31 23:30:09 +0000 |
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committer | Kevin P. Fleming <kpfleming@digium.com> | 2005-10-31 23:30:09 +0000 |
commit | 6eaca0ad8fb80b10bae8f7728572d37e00212edb (patch) | |
tree | 4c0d6699c625e44a16e6727a76c5383ba3ed20af /channels/misdn/isdn_lib.c | |
parent | 033cd4d58f5f2dfa2704ae4f5793be4f55d30576 (diff) |
finish chan_misdn commit
git-svn-id: https://origsvn.digium.com/svn/asterisk/trunk@6915 65c4cc65-6c06-0410-ace0-fbb531ad65f3
Diffstat (limited to 'channels/misdn/isdn_lib.c')
-rwxr-xr-x | channels/misdn/isdn_lib.c | 3103 |
1 files changed, 3103 insertions, 0 deletions
diff --git a/channels/misdn/isdn_lib.c b/channels/misdn/isdn_lib.c new file mode 100755 index 000000000..3ef71e218 --- /dev/null +++ b/channels/misdn/isdn_lib.c @@ -0,0 +1,3103 @@ +/* + * Chan_Misdn -- Channel Driver for Asterisk + * + * Interface to mISDN + * + * Copyright (C) 2004, Christian Richter + * + * Christian Richter <crich@beronet.com> + * + * This program is free software, distributed under the terms of + * the GNU General Public License + */ + +static int nt_err_cnt =0 ; + +enum global_states { + MISDN_INITIALIZING, + MISDN_INITIALIZED +} ; + +static enum global_states global_state=MISDN_INITIALIZING; + + +#include <../i4lnet/net_l2.h> +#include <tone.h> +#include <unistd.h> +#include <semaphore.h> +#include <pthread.h> +#include <signal.h> + +#include "isdn_lib.h" + + +struct misdn_lib { + int midev; + int midev_nt; + + pthread_t event_thread; + pthread_t event_handler_thread; + + void *user_data; + + msg_queue_t upqueue; + msg_queue_t activatequeue; + + sem_t new_msg; + + struct misdn_stack *stack_list; +} ; + +#ifndef ECHOCAN_ON +#define ECHOCAN_ON 123 +#define ECHOCAN_OFF 124 +#endif + +#define MISDN_DEBUG 0 + +struct misdn_bchannel *find_bc_by_l3id(struct misdn_stack *stack, unsigned long l3id); + +int setup_bc(struct misdn_bchannel *bc); + +int manager_isdn_handler(iframe_t *frm ,msg_t *msg); + +int misdn_lib_port_restart(int port); + +extern struct isdn_msg msgs_g[]; + +#define ISDN_PID_L3_B_USER 0x430000ff +#define ISDN_PID_L4_B_USER 0x440000ff + +/* #define MISDN_IBUF_SIZE 1024 */ +#define MISDN_IBUF_SIZE 512 + +/* Fine Tuning of Inband Signalling time */ +#define TONE_ALERT_CNT 41 /* 1 Sec */ +#define TONE_ALERT_SILENCE_CNT 200 /* 4 Sec */ + +#define TONE_BUSY_CNT 20 /* ? */ +#define TONE_BUSY_SILENCE_CNT 48 /* ? */ + +static int entity; + +static struct misdn_lib *glob_mgr; + +unsigned char tone_425_flip[TONE_425_SIZE]; +unsigned char tone_silence_flip[TONE_SILENCE_SIZE]; + +static void misdn_lib_isdn_event_catcher(void *arg); +static int handle_event_nt(void *dat, void *arg); + + +void stack_holder_add(struct misdn_stack *stack, struct misdn_bchannel *holder); +void stack_holder_remove(struct misdn_stack *stack, struct misdn_bchannel *holder); +struct misdn_bchannel *stack_holder_find(struct misdn_stack *stack, unsigned long l3id); + +/* from isdn_lib.h */ +int init_bc(struct misdn_stack * stack, struct misdn_bchannel *bc, int midev, int port, int bidx, char *msn, int firsttime); +struct misdn_stack* stack_te_init(int midev, int port, int ptp); +void stack_te_destroy(struct misdn_stack* stack); + /* user iface */ +int te_lib_init( void ) ; /* returns midev */ +void te_lib_destroy(int midev) ; +struct misdn_bchannel *manager_find_bc_by_pid(int pid); +struct misdn_bchannel *manager_find_bc_holded(struct misdn_bchannel* bc); +unsigned char * manager_flip_buf_bits ( unsigned char * buf , int len); +void manager_ph_control_block(struct misdn_bchannel *bc, int c1, void *c2, int c2_len); +void manager_clean_bc(struct misdn_bchannel *bc ); +void manager_bchannel_setup (struct misdn_bchannel *bc); +void manager_bchannel_cleanup (struct misdn_bchannel *bc); + +int isdn_msg_get_index(struct isdn_msg msgs[], msg_t *frm, int nt); +enum event_e isdn_msg_get_event(struct isdn_msg msgs[], msg_t *frm, int nt); +int isdn_msg_parse_event(struct isdn_msg msgs[], msg_t *frm, struct misdn_bchannel *bc, int nt); +char * isdn_get_info(struct isdn_msg msgs[], enum event_e event, int nt); +msg_t * isdn_msg_build_event(struct isdn_msg msgs[], struct misdn_bchannel *bc, enum event_e event, int nt); +void ec_chunk( struct misdn_bchannel *bc, unsigned char *rxchunk, unsigned char *txchunk, int chunk_size); + /* end */ +int bchdev_echocancel_activate(struct misdn_bchannel* dev); +void bchdev_echocancel_deactivate(struct misdn_bchannel* dev); +/* end */ + + +static char *bearer2str(int cap) { + static char *bearers[]={ + "Speech", + "Audio 3.1k", + "Unres Digital", + "Res Digital", + "Unknown Bearer" + }; + + switch (cap) { + case INFO_CAPABILITY_SPEECH: + return bearers[0]; + break; + case INFO_CAPABILITY_AUDIO_3_1K: + return bearers[1]; + break; + case INFO_CAPABILITY_DIGITAL_UNRESTRICTED: + return bearers[2]; + break; + case INFO_CAPABILITY_DIGITAL_RESTRICTED: + return bearers[3]; + break; + default: + return bearers[4]; + break; + } +} + + +static char flip_table[256]; + +void init_flip_bits(void) +{ + int i,k; + + for (i = 0 ; i < 256 ; i++) { + unsigned char sample = 0 ; + for (k = 0; k<8; k++) { + if ( i & 1 << k ) sample |= 0x80 >> k; + } + flip_table[i] = sample; + } +} + +static unsigned char * flip_buf_bits ( unsigned char * buf , int len) +{ + int i; + char * start = buf; + + for (i = 0 ; i < len; i++) { + buf[i] = flip_table[buf[i]]; + } + + return start; +} + + + + +msg_t *create_l2msg(int prim, int dinfo, int size) /* NT only */ +{ + int i = 0; + msg_t *dmsg; + + while(i < 10) + { + dmsg = prep_l3data_msg(prim, dinfo, size, 256, NULL); + if (dmsg) + return(dmsg); + + if (!i) + printf("cannot allocate memory, trying again...\n"); + i++; + usleep(300000); + } + printf("cannot allocate memory, system overloaded.\n"); + exit(-1); +} + + + +msg_t *create_l3msg(int prim, int mt, int dinfo, int size, int ntmode) +{ + int i = 0; + msg_t *dmsg; + Q931_info_t *qi; + iframe_t *frm; + + if (!ntmode) + size = sizeof(Q931_info_t)+2; + + while(i < 10) { + if (ntmode) { + dmsg = prep_l3data_msg(prim, dinfo, size, 256, NULL); + if (dmsg) { + return(dmsg); + } + } else { + dmsg = alloc_msg(size+256+mISDN_HEADER_LEN+DEFAULT_HEADROOM); + if (dmsg) + { + memset(msg_put(dmsg,size+mISDN_HEADER_LEN), 0, size+mISDN_HEADER_LEN); + frm = (iframe_t *)dmsg->data; + frm->prim = prim; + frm->dinfo = dinfo; + qi = (Q931_info_t *)(dmsg->data + mISDN_HEADER_LEN); + qi->type = mt; + return(dmsg); + } + } + + if (!i) printf("cannot allocate memory, trying again...\n"); + i++; + usleep(300000); + } + printf("cannot allocate memory, system overloaded.\n"); + exit(-1); +} + + +int send_msg (int midev, struct misdn_bchannel *bc, msg_t *dmsg) +{ + iframe_t *frm; + frm = (iframe_t *)dmsg->data; + + frm->addr = (bc->stack->upper_id & IF_ADDRMASK) | IF_DOWN ; + frm->dinfo = bc->l3_id; + + frm->len = (dmsg->len) - mISDN_HEADER_LEN; + + mISDN_write(midev, dmsg->data, dmsg->len, TIMEOUT_1SEC); + + free_msg(dmsg); + + return 0; +} + + +static int mypid=0; + +int misdn_cap_is_speech(int cap) +/** Poor mans version **/ +{ + if (cap != INFO_CAPABILITY_DIGITAL_UNRESTRICTED) return 1; + return 0; +} + +int misdn_inband_avail(struct misdn_bchannel *bc) +{ + switch (bc->progress_indicator) { + case INFO_PI_INBAND_AVAILABLE: + case INFO_PI_CALL_NOT_E2E_ISDN: + return 1; + default: + return 0; + } + return 0; +} + + +void dump_chan_list(struct misdn_stack *stack) +{ + int i; + + for (i=0; i <stack->b_num; i++) { + cb_log(3, stack->port, "Idx:%d stack->cchan:%d Chan:%d\n",i,stack->channels[i], i+1); + } +} + + + + +static int find_free_chan_in_stack(struct misdn_stack *stack, int channel) +{ + int i; + + if (channel < 0 || channel > MAX_BCHANS) { + cb_log(4, stack->port, " !! out of bound call to find_free_chan_in_stack! (port:%d ch:%d)\n", stack->port, channel); + return 0; + } + + channel--; + + for (i = 0; i < stack->b_num; i++) { + if (i != 15 && (channel < 0 || i == channel)) { /* skip E1 Dchannel ;) and work with chan preselection */ + if (!stack->channels[i]) { + cb_log (4, stack->port, " --> found chan%s: %d\n", channel>=0?" (preselected)":"", i+1); + stack->channels[i] = 1; + return i+1; + } + } + } + + cb_log (4, stack->port, " !! NO FREE CHAN IN STACK\n"); + dump_chan_list(stack); + + return 0; +} + +int empty_chan_in_stack(struct misdn_stack *stack, int channel) +{ + cb_log (4, stack?stack->port:0, " --> empty chan %d\n",channel); + stack->channels[channel-1] = 0; + dump_chan_list(stack); + return 0; +} + + +void empty_bc(struct misdn_bchannel *bc) +{ + bc->channel = 0; + bc->in_use = 0; + + bc->nohdlc=0; + + bc->send_dtmf=0; + bc->nodsp=0; + bc->nojitter=0; + + bc->time_usec=0; + + bc->rxgain=0; + bc->txgain=0; + + bc->crypt=0; + bc->curptx=0; bc->curprx=0; + + bc->crypt_key[0] = 0; + + bc->tone=TONE_NONE; + bc->tone_cnt2 = bc->tone_cnt=0; + + bc->dnumplan=NUMPLAN_UNKNOWN; + bc->onumplan=NUMPLAN_UNKNOWN; + bc->rnumplan=NUMPLAN_UNKNOWN; + + bc->active = 0; + + bc->ec_enable = 0; + bc->ec_deftaps = 128; + bc->ec_whenbridged = 0; + bc->ec_training = 400; + + + bc->orig=0; + + bc->cause=16; + bc->out_cause=16; + bc->pres=0 ; /* screened */ + + bc->evq=EVENT_NOTHING; + + bc->progress_coding=0; + bc->progress_location=0; + bc->progress_indicator=0; + +/** Set Default Bearer Caps **/ + bc->capability=INFO_CAPABILITY_SPEECH; + bc->law=INFO_CODEC_ALAW; + bc->mode=0; + bc->rate=0; + bc->user1=0; + bc->async=0; + bc->urate=0; + + + + bc->info_dad[0] = 0; + bc->display[0] = 0; + bc->infos_pending[0] = 0; + bc->oad[0] = 0; + bc->dad[0] = 0; + bc->orig_dad[0] = 0; + + bc->facility=FACILITY_NONE; + bc->facility_calldeflect_nr[0]=0; +} + + +int clean_up_bc(struct misdn_bchannel *bc) +{ + int ret=0; + unsigned char buff[32]; + if (!bc || !bc->stack) return -1; + + if (!bc->upset) { + cb_log(5, bc->stack->port, "$$$ Already cleaned up bc with stid :%x\n", bc->b_stid); + return -1; + } + + cb_log(5, bc->stack->port, "$$$ Cleaning up bc with stid :%x\n", bc->b_stid); + + + if ( misdn_cap_is_speech(bc->capability) && bc->ec_enable) { + manager_ec_disable(bc); + } + + mISDN_write_frame(bc->stack->midev, buff, bc->layer_id, MGR_DELLAYER | REQUEST, 0, 0, NULL, TIMEOUT_1SEC); + + + bc->b_stid = 0; + + bc->upset=0; + + return ret; +} + + + +void clear_l3(struct misdn_stack *stack) +{ + int i; + for (i=0; i<stack->b_num; i++) { + if (global_state == MISDN_INITIALIZED) { + cb_event(EVENT_CLEANUP, &stack->bc[i], glob_mgr->user_data); + empty_chan_in_stack(stack,i+1); + empty_bc(&stack->bc[i]); + clean_up_bc(&stack->bc[i]); + + } + + } +} + +int set_chan_in_stack(struct misdn_stack *stack, int channel) +{ + stack->channels[channel-1] = 1; + + return 0; +} + +int chan_in_stack_free(struct misdn_stack *stack, int channel) +{ + if (stack->channels[channel-1]) + return 0; + + return 1; +} + + + +static int newteid=0; + +#ifdef MISDNUSER_JOLLY +#define MAXPROCS 0x100 +#else +#define MAXPROCS 0x10 +#endif + +static int create_process (int midev, struct misdn_bchannel *bc) { + iframe_t ncr; + int l3_id; + int i; + struct misdn_stack *stack=bc->stack; + int free_chan; + + if (stack->mode == NT_MODE) { + free_chan = find_free_chan_in_stack(stack, bc->channel_preselected?bc->channel:0); + if (!free_chan) return -1; + bc->channel=free_chan; + + for (i=0; i <= MAXPROCS; i++) + if (stack->procids[i]==0) break; + + if (i== MAXPROCS) { + cb_log(0, stack->port, "Couldnt Create New ProcId Port:%d\n",stack->port); + return -1; + } + stack->procids[i]=1; + +#ifdef MISDNUSER_JOLLY + l3_id = 0xff00 | i; +#else + l3_id = 0xfff0 | i; +#endif + + ncr.prim = CC_NEW_CR | REQUEST; + ncr.addr = (stack->upper_id & IF_ADDRMASK) | IF_DOWN ; + ncr.dinfo = l3_id; + ncr.len = 0; + + bc->l3_id = l3_id; + if (mypid>5000) mypid=0; + bc->pid=mypid++; + + cb_log(3, stack->port, " --> new_l3id %x\n",l3_id); + + } else { + if (stack->ptp || stack->te_choose_channel) { + /* we know exactly which channels are in use */ + free_chan = find_free_chan_in_stack(stack, bc->channel_preselected?bc->channel:0); + if (!free_chan) return -1; + bc->channel=free_chan; + } else { + /* other phones could have made a call also on this port (ptmp) */ + bc->channel=0xff; + } + + + /* if we are in te-mode, we need to create a process first */ + if (newteid++ > 0xffff) + newteid = 0x0001; + + l3_id = (entity<<16) | newteid; + /* preparing message */ + ncr.prim = CC_NEW_CR | REQUEST; + ncr.addr = (stack->upper_id & IF_ADDRMASK) | IF_DOWN ; + ncr.dinfo =l3_id; + ncr.len = 0; + /* send message */ + + bc->l3_id = l3_id; + if (mypid>5000) mypid=0; + bc->pid=mypid++; + + cb_log(3, stack->port, "--> new_l3id %x\n",l3_id); + + mISDN_write(midev, &ncr, mISDN_HEADER_LEN+ncr.len, TIMEOUT_1SEC); + } + + return l3_id; +} + + + +int setup_bc(struct misdn_bchannel *bc) +{ + unsigned char buff[1025]; + + mISDN_pid_t pid; + int ret; + int midev=bc->stack->midev; + int channel=bc->channel-1-(bc->channel>16); + int b_stid=bc->stack->b_stids[channel>=0?channel:0]; + + if (bc->upset) { + cb_log(5, bc->stack->port, "$$$ bc already upsetted stid :%x\n", b_stid); + return -1; + } + + + if (bc->nodsp) { + clean_up_bc(bc); + } + + cb_log(5, bc->stack->port, "$$$ Setting up bc with stid :%x\n", b_stid); + + if (b_stid <= 0) { + cb_log(0, bc->stack->port," -- Stid <=0 at the moment on port:%d channel:%d\n",bc->stack->port,channel); + return 1; + } + + + bc->b_stid = b_stid; + + { + layer_info_t li; + memset(&li, 0, sizeof(li)); + + li.object_id = -1; + li.extentions = 0; + + li.st = bc->b_stid; /* given idx */ + + + if ( misdn_cap_is_speech(bc->capability) && !bc->nodsp && bc->async != 1) { + cb_log(4, bc->stack->port,"setup_bc: with dsp\n"); + { + int l = sizeof(li.name); + strncpy(li.name, "B L4", l); + li.name[l-1] = 0; + } + li.pid.layermask = ISDN_LAYER((4)); + li.pid.protocol[4] = ISDN_PID_L4_B_USER; + + } else { + cb_log(4, bc->stack->port,"setup_bc: without dsp\n"); + { + int l = sizeof(li.name); + strncpy(li.name, "B L3", l); + li.name[l-1] = 0; + } + li.pid.layermask = ISDN_LAYER((3)); + li.pid.protocol[3] = ISDN_PID_L3_B_USER; + } + + ret = mISDN_new_layer(midev, &li); + if (ret <= 0) { + cb_log(0, bc->stack->port,"New Layer Err: %d %s port:%d\n",ret,strerror(errno), bc->stack->port); + return(-EINVAL); + } + + bc->layer_id = ret; + } + + memset(&pid, 0, sizeof(pid)); + + bc->addr = ( bc->layer_id & IF_ADDRMASK) | IF_DOWN; + cb_log(4, bc->stack->port," --> Got Adr %x\n", bc->addr); + cb_log(4, bc->stack->port," --> Channel is %d\n", bc->channel); + + + if (bc->async == 1 || bc->nodsp) { + cb_log(4, bc->stack->port," --> TRANSPARENT Mode (no DSP)\n"); + pid.protocol[1] = ISDN_PID_L1_B_64TRANS; + pid.protocol[2] = ISDN_PID_L2_B_TRANS; + pid.protocol[3] = ISDN_PID_L3_B_USER; + pid.layermask = ISDN_LAYER((1)) | ISDN_LAYER((2)) | ISDN_LAYER((3)); + } else if ( misdn_cap_is_speech(bc->capability)) { + cb_log(4, bc->stack->port," --> TRANSPARENT Mode\n"); + 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)); + + } else { + cb_log(4, bc->stack->port," --> HDLC Mode\n"); + pid.protocol[1] = ISDN_PID_L1_B_64HDLC ; + pid.protocol[2] = ISDN_PID_L2_B_TRANS ; + pid.protocol[3] = ISDN_PID_L3_B_USER; + pid.layermask = ISDN_LAYER((1)) | ISDN_LAYER((2)) | ISDN_LAYER((3)) ; + } + + ret = mISDN_set_stack(midev, bc->b_stid, &pid); + + + if (ret){ + cb_log(5, bc->stack->port,"$$$ Set Stack Err: %d %s\n",ret,strerror(errno)); + + mISDN_write_frame(midev, buff, bc->addr, MGR_DELLAYER | REQUEST, 0, 0, NULL, TIMEOUT_1SEC); + return(-EINVAL); + } + + bc->upset=1; + + return 0; +} + + + +/** IFACE **/ +int init_bc(struct misdn_stack *stack, struct misdn_bchannel *bc, int midev, int port, int bidx, char *msn, int firsttime) +{ + unsigned char buff[1025]; + iframe_t *frm = (iframe_t *)buff; + int ret; + + if (!bc) return -1; + + cb_log(4, port, "Init.BC %d on port:%d\n",bidx, port); + + memset(bc, 0,sizeof(struct misdn_bchannel)); + + if (msn) { + int l = sizeof(bc->msn); + strncpy(bc->msn,msn, l); + bc->msn[l-1] = 0; + } + + + empty_bc(bc); + bc->upset=0; + + bc->astbuf= init_ibuffer(MISDN_IBUF_SIZE); + clear_ibuffer( bc->astbuf); + bc->astbuf->rsem=malloc(sizeof(sem_t)); + + + if (sem_init(bc->astbuf->rsem,1,0)<0) + sem_init(bc->astbuf->rsem,0,0); + + + bc->misdnbuf= init_ibuffer(MISDN_IBUF_SIZE); + clear_ibuffer( bc->misdnbuf); + bc->misdnbuf->rsem=malloc(sizeof(sem_t)); + + if (sem_init(bc->misdnbuf->rsem,1,0)< 0) + sem_init(bc->misdnbuf->rsem,0,0); + + bc->stack=stack; + + { + stack_info_t *stinf; + ret = mISDN_get_stack_info(midev, bc->stack->port, buff, sizeof(buff)); + if (ret < 0) { + cb_log(0, port, "%s: Cannot get stack info for port:%d (ret=%d)\n", __FUNCTION__, port, ret); + return -1; + } + + stinf = (stack_info_t *)&frm->data.p; + + cb_log(4, port, " --> Child %x\n",stinf->child[bidx]); + } + + return 0; +} + + + +struct misdn_stack * stack_nt_init(struct misdn_stack *stack, int midev, int port) +{ + int ret; + layer_info_t li; + interface_info_t ii; + + + cb_log(4, port, "Init. Stack on port:%d\n",port); + stack->mode = NT_MODE; + + stack->lower_id = mISDN_get_layerid(midev, stack->d_stid, 1); + if (stack->lower_id <= 0) { + cb_log(0, port, "%s: Cannot get layer(%d) id of port:%d\n", __FUNCTION__, 1, port); + return(NULL); + } + + + memset(&li, 0, sizeof(li)); + { + int l = sizeof(li.name); + strncpy(li.name,"net l2", l); + li.name[l-1] = 0; + } + li.object_id = -1; + li.extentions = 0; + li.pid.protocol[2] = ISDN_PID_L2_LAPD_NET; + li.pid.layermask = ISDN_LAYER((2)); + li.st = stack->d_stid; + + + stack->upper_id = mISDN_new_layer(midev, &li); + if (stack->upper_id <= 0) { + cb_log(0, port, "%s: Cannot add layer %d of port:%d\n", __FUNCTION__, 2, port); + return(NULL); + } + + cb_log(4, port, "NT Stacks upper_id %x\n",stack->upper_id); + + memset(&ii, 0, sizeof(ii)); + ii.extentions = EXT_IF_EXCLUSIV; + ii.owner = stack->upper_id; + ii.peer = stack->lower_id; + ii.stat = IF_DOWN; + ret = mISDN_connect(midev, &ii); + if (ret) { + cb_log(0, port, "%s: Cannot connect layer %d of port:%d exclusively.\n", __FUNCTION__, 2, port); + return(NULL); + } + + /* create nst (nt-mode only) */ + { + memset(&stack->nst, 0, sizeof(net_stack_t)); + memset(&stack->mgr, 0, sizeof(manager_t)); + + stack->mgr.nst = &stack->nst; + stack->nst.manager = &stack->mgr; + + stack->nst.l3_manager = handle_event_nt; + stack->nst.device = midev; + stack->nst.cardnr = port; + stack->nst.d_stid = stack->d_stid; + +#ifdef MISDNUSER_JOLLY + stack->nst.feature = FEATURE_NET_HOLD; + if (stack->ptp) + stack->nst.feature |= FEATURE_NET_PTP; + if (stack->pri) + stack->nst.feature |= FEATURE_NET_CRLEN2 | FEATURE_NET_EXTCID; +#endif + + stack->nst.l1_id = stack->lower_id; + stack->nst.l2_id = stack->upper_id; + + msg_queue_init(&stack->nst.down_queue); + + Isdnl2Init(&stack->nst); + Isdnl3Init(&stack->nst); + } + /* if ntmode, establish L1 to send the tei removal during start */ + { + iframe_t act; + act.prim = PH_ACTIVATE | REQUEST; + act.addr = (stack->upper_id & IF_ADDRMASK) | IF_DOWN ; + act.dinfo = 0; + act.len = 0; + mISDN_write(midev, &act, mISDN_HEADER_LEN+act.len, TIMEOUT_1SEC); + } + + stack->l2link=0; + if (stack->ptp) { + msg_t *dmsg; + /* L2 */ + dmsg = create_l2msg(DL_ESTABLISH | REQUEST, 0, 0); + + if (stack->nst.manager_l3(&stack->nst, dmsg)) + free_msg(dmsg); + + stack->l2link=1; + } + + return stack; +} + + +struct misdn_stack* stack_te_init( int midev, int port, int ptp ) +{ + int ret; + unsigned char buff[1025]; + iframe_t *frm = (iframe_t *)buff; + stack_info_t *stinf; + int i; + layer_info_t li; + interface_info_t ii; + struct misdn_stack *stack = malloc(sizeof(struct misdn_stack)); + if (!stack ) return NULL; + + + //cb_log(2, "Init. Stack on port:%d\n",port); + cb_log(4, port, "Init. Stack on port:%d\n",port); + + memset(stack,0,sizeof(struct misdn_stack)); + + for (i=0; i<MAX_BCHANS + 1; i++ ) stack->channels[i]=0; + + stack->port=port; + stack->midev=midev; + stack->ptp=ptp; + + stack->holding=NULL; + stack->pri=0; + + msg_queue_init(&stack->downqueue); + + /* query port's requirements */ + ret = mISDN_get_stack_info(midev, port, buff, sizeof(buff)); + if (ret < 0) { + cb_log(0, port, "%s: Cannot get stack info for port:%d (ret=%d)\n", __FUNCTION__, port, ret); + return(NULL); + } + + stinf = (stack_info_t *)&frm->data.p; + + stack->d_stid = stinf->id; + stack->b_num = stinf->childcnt; + + for (i=0; i<stinf->childcnt; i++) + stack->b_stids[i] = stinf->child[i]; + + switch(stinf->pid.protocol[0] & ~ISDN_PID_FEATURE_MASK) { + case ISDN_PID_L0_TE_S0: + //cb_log(2, "TE Stack\n"); + stack->mode = TE_MODE; + break; + case ISDN_PID_L0_NT_S0: + cb_log(4, port, "NT Stack\n"); + + return stack_nt_init(stack,midev,port); + break; + + case ISDN_PID_L0_TE_U: + break; + case ISDN_PID_L0_NT_U: + break; + case ISDN_PID_L0_TE_UP2: + break; + case ISDN_PID_L0_NT_UP2: + break; + case ISDN_PID_L0_TE_E1: + cb_log(4, port, "TE S2M Stack\n"); + stack->mode = TE_MODE; + stack->pri=1; + break; + case ISDN_PID_L0_NT_E1: + cb_log(4, port, "TE S2M Stack\n"); + stack->mode = NT_MODE; + stack->pri=1; + + return stack_nt_init(stack,midev,port); + break; + default: + cb_log(0, port, "unknown port(%d) type 0x%08x\n", port, stinf->pid.protocol[0]); + + } + + if (stinf->pid.protocol[2] & ISDN_PID_L2_DF_PTP ) { /* || (nt&&ptp) || pri */ + stack->ptp = 1; + } else { + stack->ptp = 0; + } + + stack->lower_id = mISDN_get_layerid(midev, stack->d_stid, 3); + if (stack->lower_id <= 0) { + cb_log(0, stack->port, "No lower Id port:%d\n", stack->port); + return(NULL); + } + + memset(&li, 0, sizeof(li)); + { + int l = sizeof(li.name); + strncpy(li.name, "user L4", l); + li.name[l-1] = 0; + } + li.object_id = -1; + li.extentions = 0; + + li.pid.protocol[4] = ISDN_PID_L4_CAPI20; + + li.pid.layermask = ISDN_LAYER((4)); + li.st = stack->d_stid; + stack->upper_id = mISDN_new_layer(midev, &li); + + if (stack->upper_id <= 0) { + cb_log(0, stack->port, "No Upper ID port:%d\n",stack->port); + return(NULL); + } + + memset(&ii, 0, sizeof(ii)); + ii.extentions = EXT_IF_EXCLUSIV | EXT_IF_CREATE; + ii.owner = stack->upper_id; + ii.peer = stack->lower_id; + ii.stat = IF_DOWN; + ret = mISDN_connect(midev, &ii); + if (ret) { + cb_log(0, stack->port, "No Connect port:%d\n", stack->port); + return NULL; + } + + + /* if ptp, establish link */ + if (stack->ptp) { + iframe_t act; + +#ifdef DL_STATUS + act.prim = DL_STATUS | REQUEST; +#else + act.prim = DL_ESTABLISH | REQUEST; +#endif + act.addr = (stack->upper_id & IF_ADDRMASK) | IF_DOWN; + act.dinfo = 0; + act.len = 0; + mISDN_write(midev, &act, mISDN_HEADER_LEN+act.len, TIMEOUT_1SEC); + } + +#ifdef DL_STATUS + { /* Pull Up L1 if we have JOLLY */ + iframe_t act; + act.prim = PH_ACTIVATE | REQUEST; + act.addr = (stack->upper_id & IF_ADDRMASK) | IF_DOWN ; + act.dinfo = 0; + act.len = 0; + mISDN_write(midev, &act, mISDN_HEADER_LEN+act.len, TIMEOUT_1SEC); + } + + + if (!stack->ptp) { + iframe_t act; + + + act.prim = DL_STATUS | REQUEST; + + act.addr = (stack->upper_id & IF_ADDRMASK) | IF_DOWN; + act.dinfo = 0; + act.len = 0; + mISDN_write(midev, &act, mISDN_HEADER_LEN+act.len, TIMEOUT_1SEC); + } +#endif + + + /* initially, we assume that the link is NOT up */ + stack->l2link = 0; + stack->l1link = 0; + + stack->next=NULL; + + return stack; + +} + +void stack_te_destroy(struct misdn_stack* stack) +{ + char buf[1024]; + if (!stack) return; + + if (stack->lower_id) + mISDN_write_frame(stack->midev, buf, stack->lower_id, MGR_DELLAYER | REQUEST, 0, 0, NULL, TIMEOUT_1SEC); + + if (stack->upper_id) + mISDN_write_frame(stack->midev, buf, stack->upper_id, MGR_DELLAYER | REQUEST, 0, 0, NULL, TIMEOUT_1SEC); +} + + +struct misdn_stack * find_stack_by_addr(int addr) +{ + struct misdn_stack *stack; + + for (stack=glob_mgr->stack_list; + stack; + stack=stack->next) { + if ( stack->upper_id == addr) return stack; + } + + return NULL; +} + + +struct misdn_stack * find_stack_by_port(int port) +{ + struct misdn_stack *stack; + + for (stack=glob_mgr->stack_list; + stack; + stack=stack->next) + if (stack->port == port) return stack; + + return NULL; +} + +struct misdn_stack * find_stack_by_mgr(manager_t* mgr_nt) +{ + struct misdn_stack *stack; + + for (stack=glob_mgr->stack_list; + stack; + stack=stack->next) + if ( &stack->mgr == mgr_nt) return stack; + + return NULL; +} + +struct misdn_bchannel *find_bc_by_masked_l3id(struct misdn_stack *stack, unsigned long l3id, unsigned long mask) +{ + int i; + for (i=0; i<stack->b_num; i++) { + if ( (stack->bc[i].l3_id & mask) == (l3id & mask)) return &stack->bc[i] ; + } + return stack_holder_find(stack,l3id); +} + + +struct misdn_bchannel *find_bc_by_l3id(struct misdn_stack *stack, unsigned long l3id) +{ + int i; + for (i=0; i<stack->b_num; i++) { + if (stack->bc[i].l3_id == l3id) return &stack->bc[i] ; + } + return stack_holder_find(stack,l3id); +} + +struct misdn_bchannel *find_bc_holded(struct misdn_stack *stack) +{ + int i; + for (i=0; i<stack->b_num; i++) { + if (stack->bc[i].holded ) return &stack->bc[i] ; + } + return NULL; +} + + +struct misdn_bchannel *find_bc_by_addr(unsigned long addr) +{ + int port = addr & IF_CONTRMASK; + struct misdn_stack* stack; + int i; + + + for (stack=glob_mgr->stack_list; + stack; + stack=stack->next) { + + if (stack->port == port) { + for (i=0; i< stack->b_num; i++) { + if (stack->bc[i].addr==addr) { + return &stack->bc[i]; + } + } + } + } + + return NULL; +} + + + + +int handle_event ( struct misdn_bchannel *bc, enum event_e event, iframe_t *frm) +{ + + if (bc->stack->mode == TE_MODE) { + switch (event) { + case EVENT_CONNECT: + if ( *bc->crypt_key ) { + cb_log(4, bc->stack->port, "ENABLING BLOWFISH port:%d channel:%d oad%d:%s dad%d:%s\n", bc->stack->port, bc->channel, bc->onumplan,bc->oad, bc->dnumplan,bc->dad); + + manager_ph_control_block(bc, BF_ENABLE_KEY, bc->crypt_key, strlen(bc->crypt_key) ); + } + case EVENT_SETUP: + if (bc->channel>0 && bc->channel<255) + set_chan_in_stack(bc->stack, bc->channel); + break; + case EVENT_ALERTING: + case EVENT_PROGRESS: + case EVENT_PROCEEDING: + case EVENT_SETUP_ACKNOWLEDGE: + + { + struct misdn_stack *stack=find_stack_by_port(frm->addr&IF_CONTRMASK); + if (!stack) return -1; + + if (bc->channel == 0xff) { + bc->channel=find_free_chan_in_stack(bc->stack, 0); + if (!bc->channel) { + cb_log(0, bc->stack->port, "Any Channel Requested, but we have no more!!\n"); + break; + } + } + + if (stack->mode == TE_MODE) { + setup_bc(bc); + } + } + + default: + break; + } + } else { /** NT MODE **/ + + } + return 0; +} + +int handle_new_process(struct misdn_stack *stack, iframe_t *frm) +{ + + struct misdn_bchannel* bc=misdn_lib_get_free_bc(frm->addr&IF_CONTRMASK, 0); + + if (!bc) { + cb_log(0, 0, " --> !! lib: No free channel!\n"); + return -1; + } + + cb_log(4, bc->stack->port, " --> new_process: New L3Id: %x\n",frm->dinfo); + bc->l3_id=frm->dinfo; + + if (mypid>5000) mypid=0; + bc->pid=mypid++; + return 0; +} + +int handle_cr ( iframe_t *frm) +{ + struct misdn_stack *stack=find_stack_by_port(frm->addr&IF_CONTRMASK); + + if (!stack) return -1; + + switch (frm->prim) { + case CC_NEW_CR|INDICATION: + cb_log(4, stack->port, " --> lib: NEW_CR Ind with l3id:%x port:%d\n",frm->dinfo, stack->port); + handle_new_process(stack, frm); + return 1; + case CC_NEW_CR|CONFIRM: + return 1; + case CC_NEW_CR|REQUEST: + return 1; + case CC_RELEASE_CR|REQUEST: + return 1; + case CC_RELEASE_CR|CONFIRM: + break; + case CC_RELEASE_CR|INDICATION: + cb_log(4, stack->port, " --> lib: RELEASE_CR Ind with l3id:%x\n",frm->dinfo); + { + struct misdn_bchannel *bc=find_bc_by_l3id(stack, frm->dinfo); + struct misdn_bchannel dummybc; + + if (!bc) { + cb_log(4, stack->port, " --> Didn't found BC so temporarly creating dummy BC (l3id:%x) on port:%d\n", frm->dinfo, stack->port); + memset (&dummybc,0,sizeof(dummybc)); + dummybc.stack=stack; + dummybc.l3_id=frm->dinfo; + bc=&dummybc; + } + + if (bc) { + cb_log(4, stack->port, " --> lib: CLEANING UP l3id: %x\n",frm->dinfo); + empty_chan_in_stack(bc->stack,bc->channel); + empty_bc(bc); + clean_up_bc(bc); + dump_chan_list(bc->stack); + bc->pid = 0; + cb_event(EVENT_CLEANUP, bc, glob_mgr->user_data); + + if (bc->stack_holder) { + cb_log(4,stack->port, "REMOVEING Holder\n"); + stack_holder_remove( bc->stack, bc); + free(bc); + } + } + else { + if (stack->mode == NT_MODE) + cb_log(4, stack->port, "BC with dinfo: %x not found.. (prim was %x and addr %x)\n",frm->dinfo, frm->prim, frm->addr); + } + + return 1; + } + break; + } + + return 0; +} + + +/*Emptys bc if it's reserved (no SETUP out yet)*/ +void misdn_lib_release(struct misdn_bchannel *bc) +{ + if (bc->channel>=0) { + empty_chan_in_stack(bc->stack,bc->channel); + empty_bc(bc); + } + clean_up_bc(bc); +} + +int misdn_lib_get_port_up (int port) +{ /* Pull Up L1 if we have JOLLY */ + struct misdn_stack *stack; + + for (stack=glob_mgr->stack_list; + stack; + stack=stack->next) { + + if (stack->port == port) { + iframe_t act; + act.prim = DL_ESTABLISH | REQUEST; + act.addr = (stack->upper_id & IF_ADDRMASK) | IF_DOWN ; + act.dinfo = 0; + act.len = 0; + mISDN_write(stack->midev, &act, mISDN_HEADER_LEN+act.len, TIMEOUT_1SEC); + return 0; + } + } + return 0; +} + + +int misdn_lib_send_facility(struct misdn_bchannel *bc, enum facility_type fac, void *data) +{ + bc->facility=fac; + strcpy(bc->facility_calldeflect_nr,(char*)data); + + misdn_lib_send_event(bc,EVENT_FACILITY); + return 0; +} + + +int misdn_lib_port_up(int port) +{ + struct misdn_stack *stack; + + for (stack=glob_mgr->stack_list; + stack; + stack=stack->next) { + + if (stack->port == port) { + if (stack->mode == NT_MODE) { + if (stack->l1link) + return 1; + else + return 0; + } else { + if (stack->l2link) + return 1; + else + return 0; + } + + } + } + + return -1; +} + + +int +handle_event_nt(void *dat, void *arg) +{ + manager_t *mgr = (manager_t *)dat; + msg_t *msg = (msg_t *)arg; +#ifdef MISDNUSER_JOLLY + mISDNuser_head_t *hh; +#else + mISDN_head_t *hh; +#endif + struct misdn_stack *stack=find_stack_by_mgr(mgr); + int port; + + if (!msg || !mgr) + return(-EINVAL); + +#ifdef MISDNUSER_JOLLY + hh=(mISDNuser_head_t*)msg->data; +#else + hh=(mISDN_head_t*)msg->data; +#endif + + port=hh->dinfo & IF_CONTRMASK; + + cb_log(4, stack->port, " --> lib: prim %x dinfo %x port: %d\n",hh->prim, hh->dinfo ,stack->port); + + { + switch(hh->prim){ + + case CC_RETRIEVE|INDICATION: + { + iframe_t frm; /* fake te frm to add callref to global callreflist */ + frm.dinfo = hh->dinfo; + frm.addr=stack->upper_id; + frm.prim = CC_NEW_CR|INDICATION; + + if (handle_cr(&frm)< 0) { + msg_t *dmsg; + cb_log(4, stack->port, "Patch from MEIDANIS:Sending RELEASE_COMPLETE %x (No free Chan for you..)\n", hh->dinfo); + dmsg = create_l3msg(CC_RELEASE_COMPLETE | REQUEST,MT_RELEASE_COMPLETE, hh->dinfo,sizeof(RELEASE_COMPLETE_t), 1); + stack->nst.manager_l3(&stack->nst, dmsg); + free_msg(msg); + return 0; + } + + struct misdn_bchannel *bc=find_bc_by_l3id(stack, hh->dinfo); + cb_event(EVENT_NEW_BC, bc, glob_mgr->user_data); + struct misdn_bchannel *hold_bc=stack_holder_find(stack,bc->l3_id); + if (hold_bc) { + cb_log(4, stack->port, "REMOVEING Holder\n"); + stack_holder_remove(stack, hold_bc); + free(hold_bc); + } + + } + + break; + + + case CC_SETUP|CONFIRM: + { + struct misdn_bchannel *bc=find_bc_by_l3id(stack, hh->dinfo); + int l3id = *((int *)(((u_char *)msg->data)+ mISDNUSER_HEAD_SIZE)); + + cb_log(4, bc?bc->stack->port:0, " --> lib: Event_ind:SETUP CONFIRM [NT] : new L3ID is %x\n",l3id ); + + if (!bc) { cb_log(4, 0, "Bc Not found (after SETUP CONFIRM)\n"); return 0; } + + bc->l3_id=l3id; + cb_event(EVENT_NEW_L3ID, bc, glob_mgr->user_data); + } + free_msg(msg); + return 0; + + case CC_SETUP|INDICATION: + { + iframe_t frm; /* fake te frm to add callref to global callreflist */ + frm.dinfo = hh->dinfo; + frm.addr=stack->upper_id; + frm.prim = CC_NEW_CR|INDICATION; + + if (handle_cr(&frm)< 0) { + msg_t *dmsg; + cb_log(4, stack->port, "Patch from MEIDANIS:Sending RELEASE_COMPLETE %x (No free Chan for you..)\n", hh->dinfo); + dmsg = create_l3msg(CC_RELEASE_COMPLETE | REQUEST,MT_RELEASE_COMPLETE, hh->dinfo,sizeof(RELEASE_COMPLETE_t), 1); + stack->nst.manager_l3(&stack->nst, dmsg); + free_msg(msg); + return 0; + } + } + break; + + + case CC_ALERTING|INDICATION: + case CC_PROCEEDING|INDICATION: + case CC_CONNECT|INDICATION: + { + struct misdn_bchannel *bc=find_bc_by_l3id(stack, hh->dinfo); + + setup_bc(bc); + } + break; + case CC_DISCONNECT|INDICATION: + { + struct misdn_bchannel *bc=find_bc_by_l3id(stack, hh->dinfo); + if (!bc) { + bc=find_bc_by_masked_l3id(stack, hh->dinfo, 0xffff0000); + if (bc) { //repair reject bug + int myprocid=bc->l3_id&0x0000ffff; + hh->dinfo=(hh->dinfo&0xffff0000)|myprocid; + cb_log(4,bc->stack->port,"Repaired reject Bug, new dinfo: %x\n",hh->dinfo); + } + } + } + break; + + case CC_RELEASE_COMPLETE|INDICATION: + break; + + case CC_SUSPEND|INDICATION: + { + msg_t *dmsg; + cb_log(4, stack->port, " --> Got Suspend, sending Reject for now\n"); + dmsg = create_l3msg(CC_SUSPEND_REJECT | REQUEST,MT_SUSPEND_REJECT, hh->dinfo,sizeof(RELEASE_COMPLETE_t), 1); + stack->nst.manager_l3(&stack->nst, dmsg); + free_msg(msg); + return 0; + } + break; + case CC_RESUME|INDICATION: + break; + + case CC_RELEASE|CONFIRM: + { + struct misdn_bchannel *bc=find_bc_by_l3id(stack, hh->dinfo); + cb_log(4, stack->port, " --> RELEASE CONFIRM, sending RELEASE_COMPLETE\n"); + if (bc) misdn_lib_send_event(bc,EVENT_RELEASE_COMPLETE); + } + hh->prim=CC_RELEASE|INDICATION; + break; + case CC_RELEASE|INDICATION: + break; + + case CC_RELEASE_CR|INDICATION: + { + struct misdn_bchannel *bc=find_bc_by_l3id(stack, hh->dinfo); + struct misdn_bchannel dummybc; + iframe_t frm; /* fake te frm to remove callref from global callreflist */ + frm.dinfo = hh->dinfo; + frm.addr=stack->upper_id; + frm.prim = CC_RELEASE_CR|INDICATION; + cb_log(4, stack->port, " --> Faking Realease_cr for %x\n",frm.addr); + /** removing procid **/ + + if (!bc) { + cb_log(4, stack->port, " --> Didn't found BC so temporarly creating dummy BC (l3id:%x) on port:%d\n", hh->dinfo, stack->port); + memset (&dummybc,0,sizeof(dummybc)); + dummybc.stack=stack; + dummybc.l3_id=hh->dinfo; + bc=&dummybc; + } + + if (bc) { +#ifdef MISDNUSER_JOLLY + if ( (bc->l3_id & 0xff00) == 0xff00) { + cb_log(4, stack->port, " --> Removing Process Id:%x on port:%d\n", bc->l3_id&0xff, stack->port); + stack->procids[bc->l3_id&0xff] = 0 ; + } +#else + if ( (bc->l3_id & 0xfff0) == 0xfff0) { + cb_log(4, stack->port, " --> Removing Process Id:%x on port:%d\n", bc->l3_id&0xf, stack->port); + stack->procids[bc->l3_id&0xf] = 0 ; + + } + +#endif + + } + else cb_log(0, stack->port, "Couldnt find BC so I couldnt remove the Process!!!! this is bad Port:%d\n", stack->port ); + + handle_cr(&frm); + free_msg(msg); + return 0 ; + } + + break; + + case CC_NEW_CR|INDICATION: + /* Got New CR for bchan, for now I handle this one in */ + /* connect_ack, Need to be changed */ + { + struct misdn_bchannel *bc=find_bc_by_l3id(stack, hh->dinfo); + int l3id = *((int *)(((u_char *)msg->data)+ mISDNUSER_HEAD_SIZE)); + if (!bc) { cb_log(0, 0, " --> In NEW_CR: didn't found bc ??\n"); return -1;}; +#ifdef MISDNUSER_JOLLY + if (((l3id&0xff00)!=0xff00) && ((bc->l3_id&0xff00)==0xff00)) { + cb_log(4, stack->port, " --> Removing Process Id:%x on port:%d\n", 0xff&bc->l3_id, stack->port); + stack->procids[bc->l3_id&0xff] = 0 ; + } +#else + if (((l3id&0xfff0)!=0xfff0) && ((bc->l3_id&0xfff0)==0xfff0)) { + cb_log(4, stack->port, "Removing Process Id:%x on port:%d\n", 0xf&bc->l3_id, stack->port); + stack->procids[bc->l3_id&0xf] = 0 ; + } + +#endif + cb_log(4, stack->port, "lib: Event_ind:CC_NEW_CR : very new L3ID is %x\n",l3id ); + + bc->l3_id =l3id; + cb_event(EVENT_NEW_L3ID, bc, glob_mgr->user_data); + + + free_msg(msg); + return 0; + } + + case DL_ESTABLISH | INDICATION: + case DL_ESTABLISH | CONFIRM: + { + cb_log(4, stack->port, "%% GOT L2 Activate Info port:%d\n",stack->port); + stack->l2link = 1; + + free_msg(msg); + return 0; + } + break; + + case DL_RELEASE | INDICATION: + case DL_RELEASE | CONFIRM: + { + cb_log(4, stack->port, "%% GOT L2 DeActivate Info port:%d\n",stack->port); + stack->l2link = 0; + + /** Clean the L3 here **/ + if (cb_clearl3_true()) + clear_l3(stack); + + free_msg(msg); + return 0; + } + break; + } + } + + + + { + /* Parse Events and fire_up to App. */ + struct misdn_bchannel *bc; + struct misdn_bchannel dummybc; + + enum event_e event = isdn_msg_get_event(msgs_g, msg, 1); + + bc=find_bc_by_l3id(stack, hh->dinfo); + + if (!bc) { + + cb_log(4, stack->port, " --> Didn't found BC so temporarly creating dummy BC (l3id:%x) on port:%d\n", hh->dinfo, stack->port); + memset (&dummybc,0,sizeof(dummybc)); + dummybc.stack=stack; + dummybc.l3_id=hh->dinfo; + bc=&dummybc; + } + if (bc ) { + isdn_msg_parse_event(msgs_g,msg,bc, 1); + + if(!isdn_get_info(msgs_g,event,1)) { + cb_log(4, bc->stack->port, "Unknown Event Ind: prim %x dinfo %x\n",hh->prim, hh->dinfo); + } else { + cb_event(event, bc, glob_mgr->user_data); + } + + + } else { + cb_log(4, stack->port, "No BC found with l3id: prim %x dinfo %x\n",hh->prim, hh->dinfo); + } + + free_msg(msg); + } + + + return 0; +} + + +int handle_timers(msg_t* msg) +{ + iframe_t *frm= (iframe_t*)msg->data; + struct misdn_stack *stack; + + /* Timer Stuff */ + switch (frm->prim) { + case MGR_INITTIMER | CONFIRM: + case MGR_ADDTIMER | CONFIRM: + case MGR_DELTIMER | CONFIRM: + case MGR_REMOVETIMER | CONFIRM: + free_msg(msg); + return(1); + } + + + + if (frm->prim==(MGR_TIMER | INDICATION) ) { + for (stack = glob_mgr->stack_list; + stack; + stack = stack->next) { + itimer_t *it; + + if (stack->mode != NT_MODE) continue; + + it = stack->nst.tlist; + /* find timer */ + for(it=stack->nst.tlist; + it; + it=it->next) { + if (it->id == (int)frm->addr) + break; + } + if (it) { + int ret; + ret = mISDN_write_frame(stack->midev, msg->data, frm->addr, + MGR_TIMER | RESPONSE, 0, 0, NULL, TIMEOUT_1SEC); + test_and_clear_bit(FLG_TIMER_RUNING, (long unsigned int *)&it->Flags); + ret = it->function(it->data); + free_msg(msg); + return 1; + } + } + + cb_log(0, 0, "Timer Msg without Timer ??\n"); + free_msg(msg); + return 1; + } + + return 0; +} + + + + +static int do_tone(struct misdn_bchannel *bc, int len) +{ + char buf[4096 + mISDN_HEADER_LEN]; + iframe_t *frm= (iframe_t*)buf; + int r; + + if (bc->tone == TONE_NONE) return 0; + + frm->prim = DL_DATA|REQUEST; + frm->dinfo = 0; + frm->addr = bc->addr | IF_DOWN; + + bc->tone_cnt+=len; + + if (bc->tone_cnt < TONE_425_SIZE) return 1; + + switch(bc->tone) { + case TONE_DIAL: + { + frm->len = TONE_425_SIZE; + memcpy(&buf[mISDN_HEADER_LEN], tone_425_flip,TONE_425_SIZE); + + r=mISDN_write(bc->stack->midev, buf, frm->len + mISDN_HEADER_LEN, TIMEOUT_1SEC); + if (r<frm->len) { + perror("Error written less than told bytes :(\n"); + } + } + break; + + case TONE_ALERTING: + bc->tone_cnt2++; + + if (bc->tone_cnt2 <= TONE_ALERT_CNT) { + frm->len = TONE_425_SIZE; + memcpy(&buf[mISDN_HEADER_LEN], tone_425_flip,TONE_425_SIZE); + r=mISDN_write(bc->stack->midev, buf, frm->len + mISDN_HEADER_LEN, TIMEOUT_1SEC); + if (r<frm->len) { + perror("Error written less than told bytes :(\n"); + } + } else if (bc->tone_cnt2 <= (TONE_ALERT_SILENCE_CNT)) { + frm->len = TONE_SILENCE_SIZE; + memcpy(&buf[mISDN_HEADER_LEN], tone_silence_flip ,TONE_SILENCE_SIZE); + r=mISDN_write(bc->stack->midev, buf, frm->len + mISDN_HEADER_LEN, TIMEOUT_1SEC); + } else { + bc->tone_cnt2=-1; + } + break; + case TONE_BUSY: + bc->tone_cnt2++; + + if (bc->tone_cnt2 <= TONE_BUSY_CNT) { + frm->len = TONE_425_SIZE; + memcpy(&buf[mISDN_HEADER_LEN], tone_425_flip,TONE_425_SIZE); + r=mISDN_write(bc->stack->midev, buf, frm->len + mISDN_HEADER_LEN, TIMEOUT_1SEC); + if (r<frm->len) { + perror("Error written less than told bytes :(\n"); + } + } else if (bc->tone_cnt2 <= (TONE_BUSY_SILENCE_CNT)) { + frm->len = TONE_SILENCE_SIZE; + memcpy(&buf[mISDN_HEADER_LEN], tone_silence_flip ,TONE_SILENCE_SIZE); + r=mISDN_write(bc->stack->midev, buf, frm->len + mISDN_HEADER_LEN, TIMEOUT_1SEC); + } else { + bc->tone_cnt2=-1; + } + break; + case TONE_FILE: + break; + case TONE_NONE: + return 0; + } + + bc->tone_cnt -= TONE_425_SIZE ; + return 1; +} + + + +int handle_bchan(msg_t *msg) +{ + iframe_t *frm= (iframe_t*)msg->data; + struct misdn_bchannel *bc; + + bc=find_bc_by_addr(frm->addr); + + if (!bc) return 0 ; + + switch (frm->prim) { + case PH_ACTIVATE | INDICATION: + case DL_ESTABLISH | INDICATION: + cb_log(4, bc->stack->port, "BCHAN: ACT Ind\n"); + free_msg(msg); + return 1; + + case PH_ACTIVATE | CONFIRM: + case DL_ESTABLISH | CONFIRM: + cb_log(4, bc->stack->port, "BCHAN: bchan ACT Confirm\n"); + free_msg(msg); + return 1; + + case PH_DEACTIVATE | INDICATION: + case DL_RELEASE | INDICATION: + cb_log (4, bc->stack->port, "BCHAN: DeACT Ind\n"); + free_msg(msg); + return 1; + + case PH_DEACTIVATE | CONFIRM: + case DL_RELEASE | CONFIRM: + cb_log(4, bc->stack->port, "BCHAN: DeACT Conf\n"); + free_msg(msg); + return 1; + + case PH_CONTROL|INDICATION: + { + unsigned long cont = *((unsigned long *)&frm->data.p); + + cb_log(4, bc->stack->port, "PH_CONTROL: port:%d channel:%d oad%d:%s dad%d:%s \n", bc->stack->port, bc->channel, bc->onumplan,bc->oad, bc->dnumplan,bc->dad); + + if ((cont&~DTMF_TONE_MASK) == DTMF_TONE_VAL) { + int dtmf = cont & DTMF_TONE_MASK; + cb_log(4, bc->stack->port, " --> DTMF TONE: %c\n",dtmf); + bc->dtmf=dtmf; + cb_event(EVENT_DTMF_TONE, bc, glob_mgr->user_data); + + free_msg(msg); + return 1; + } + if (cont == BF_REJECT) { + cb_log(4, bc->stack->port, " --> BF REJECT\n"); + free_msg(msg); + return 1; + } + if (cont == BF_ACCEPT) { + cb_log(4, bc->stack->port, " --> BF ACCEPT\n"); + free_msg(msg); + return 1; + } + } + break; + + case PH_DATA|INDICATION: + case DL_DATA|INDICATION: + { + bc->bframe = (void*)&frm->data.i; + bc->bframe_len = frm->len; + + /** Anyway flip the bufbits **/ + flip_buf_bits(bc->bframe, bc->bframe_len); + + +#if MISDN_DEBUG + cb_log(0, bc->stack->port, "DL_DATA INDICATION Len %d\n", frm->len); +#endif + + if (bc->active && frm->len > 0) { + if ( !do_tone(bc, frm->len) ) { + + if ( misdn_cap_is_speech(bc->capability)) { + if ( !bc->nojitter ) { + char buf[4096 + mISDN_HEADER_LEN]; + iframe_t *txfrm= (iframe_t*)buf; + int len, r; + + len = ibuf_usedcount(bc->misdnbuf); + + if (len < frm->len) { + /** send nothing + * till we are synced + **/ + } else { + + txfrm->prim = DL_DATA|REQUEST; + txfrm->dinfo = 0; + txfrm->addr = bc->addr; /* | IF_DOWN; */ + txfrm->len = frm->len; + ibuf_memcpy_r(&buf[mISDN_HEADER_LEN], bc->misdnbuf,frm->len); + cb_log(9, bc->stack->port, "Transmitting %d samples 2 misdn\n", txfrm->len); + + r=mISDN_write(bc->stack->midev, buf, txfrm->len + mISDN_HEADER_LEN, 8000 ); + + } + + } + } + + cb_event( EVENT_BCHAN_DATA, bc, glob_mgr->user_data); + } + } + free_msg(msg); + return 1; + } + + + case PH_DATA | CONFIRM: + case DL_DATA|CONFIRM: +#if MISDN_DEBUG + cb_log(0, bc->stack->port, "Data confirmed\n"); +#endif + free_msg(msg); + return 1; + break; + case DL_DATA|RESPONSE: +#if MISDN_DEBUG + cb_log(0, bc->stack->port, "Data response\n"); +#endif + break; + + case DL_DATA | REQUEST: + break; + } + + return 0; +} + + + +int handle_frm_nt(msg_t *msg) +{ + iframe_t *frm= (iframe_t*)msg->data; + struct misdn_stack *stack; + int err=0; + + stack=find_stack_by_addr((frm->addr & IF_ADDRMASK ) ); + + if (!stack || stack->mode != NT_MODE) { + return 0; + } + + + if ((err=stack->nst.l1_l2(&stack->nst,msg))) { + + if (nt_err_cnt > 0 ) { + if (nt_err_cnt < 100) { + nt_err_cnt++; + cb_log(0, stack->port, "NT Stack sends us error: %d port:%d\n", err,stack->port); + } else if (nt_err_cnt < 105){ + cb_log(0, stack->port, "NT Stack sends us error: %d port:%d over 100 times, so I'll stop this message\n", err,stack->port); + nt_err_cnt = - 1; + } + } + free_msg(msg); + return 1; + + } + + return 1; +} + + +int handle_frm(msg_t *msg) +{ + iframe_t *frm = (iframe_t*) msg->data; + struct misdn_stack *stack=find_stack_by_addr(frm->addr & IF_ADDRMASK); + + if (!stack || stack->mode != TE_MODE) { + return 0; + } + + { + struct misdn_bchannel *bc; + + if(handle_cr(frm)) { + free_msg(msg); + return 1; + } + + bc=find_bc_by_l3id(stack, frm->dinfo); + + if (bc ) { + enum event_e event = isdn_msg_get_event(msgs_g, msg, 0); + enum event_response_e response=RESPONSE_OK; + + isdn_msg_parse_event(msgs_g,msg,bc, 0); + + /** Preprocess some Events **/ + handle_event(bc, event, frm); + /* shoot up event to App: */ + cb_log(5, stack->port, "lib Got Prim: Addr %x prim %x dinfo %x\n",frm->addr, frm->prim, frm->dinfo); + + if(!isdn_get_info(msgs_g,event,0)) + cb_log(0, stack->port, "Unknown Event Ind: Addr:%x prim %x dinfo %x\n",frm->addr, frm->prim, frm->dinfo); + else + response=cb_event(event, bc, glob_mgr->user_data); +#if 1 + if (event == EVENT_SETUP) { + switch (response) { + case RESPONSE_IGNORE_SETUP_WITHOUT_CLOSE: + cb_log(0, stack->port, "TOTALY IGNORING SETUP: port:%d\n", frm->addr&IF_CONTRMASK); + break; + case RESPONSE_IGNORE_SETUP: + /* I think we should send CC_RELEASE_CR, but am not sure*/ + empty_chan_in_stack(bc->stack, bc->channel); + empty_bc(bc); + + cb_log(0, stack->port, "GOT IGNORE SETUP: port:%d\n", frm->addr&IF_CONTRMASK); + break; + case RESPONSE_OK: + cb_log(4, stack->port, "GOT SETUP OK: port:%d\n", frm->addr&IF_CONTRMASK); + break; + default: + break; + } + } + + cb_log(5, stack->port, "Freeing Msg on prim:%x port:%d\n",frm->prim, frm->addr&IF_CONTRMASK); + free_msg(msg); + return 1; +#endif + + } else { + cb_log(0, stack->port, "NO BC FOR STACK: port:%d\n", frm->addr&IF_CONTRMASK); + } + + } + cb_log(4, stack->port, "TE_FRM_HANDLER: Returning 0 on prim:%x port:%d\n",frm->prim, frm->addr&IF_CONTRMASK); + + return 0; +} + + +int handle_l1(msg_t *msg) +{ + iframe_t *frm = (iframe_t*) msg->data; + struct misdn_stack *stack = find_stack_by_port(frm->addr & IF_CONTRMASK); + int i ; + + if (!stack) return 0 ; + + switch (frm->prim) { + case PH_ACTIVATE | CONFIRM: + case PH_ACTIVATE | INDICATION: + cb_log (1, stack->port, "L1: PH L1Link Up! port:%d\n",stack->port); + stack->l1link=1; + free_msg(msg); + + for (i=0;i<stack->b_num; i++) { + if (stack->bc[i].evq != EVENT_NOTHING) { + cb_log(4, stack->port, "Fireing Queued Event %s because L1 got up\n", isdn_get_info(msgs_g, stack->bc[i].evq, 0)); + misdn_lib_send_event(&stack->bc[i],stack->bc[i].evq); + stack->bc[i].evq=EVENT_NOTHING; + } + + } + + return 1; + case PH_DEACTIVATE | CONFIRM: + case PH_DEACTIVATE | INDICATION: + cb_log (1, stack->port, "L1: PH L1Link Down! port:%d\n",stack->port); + stack->l1link=0; + for (i=0; i<stack->b_num; i++) { + if (global_state == MISDN_INITIALIZED) { + cb_event(EVENT_CLEANUP, &stack->bc[i], glob_mgr->user_data); + } + + } + free_msg(msg); + return 1; + } + + return 0; +} + +int handle_l2(msg_t *msg) +{ + iframe_t *frm = (iframe_t*) msg->data; + struct misdn_stack *stack = find_stack_by_addr(frm->addr & IF_ADDRMASK); + + if (!stack) return 0 ; + + switch(frm->prim) { + +#ifdef DL_STATUS + case DL_STATUS | INDICATION: + case DL_STATUS | CONFIRM: + cb_log (3, stack->port, "L1: DL_STATUS! port:%d\n", stack->port); + + switch (frm->dinfo) { + case SDL_ESTAB: + cb_log (4, stack->port, " --> SDL_ESTAB port:%d\n", stack->port); + stack->l1link=1; + goto dl_estab; + case SDL_REL: + cb_log (4, stack->port, " --> SDL_REL port:%d\n", stack->port); + stack->l1link=0; + misdn_lib_get_port_up(stack->port); + goto dl_rel; + } + break; +#endif + + + case DL_ESTABLISH | INDICATION: + case DL_ESTABLISH | CONFIRM: +#ifdef DL_STATUS + dl_estab: +#endif + { + cb_log (3, stack->port, "L2: L2Link Up! port:%d\n", stack->port); + stack->l2link=1; + free_msg(msg); + return 1; + } + break; + + case DL_RELEASE | INDICATION: + case DL_RELEASE | CONFIRM: +#ifdef DL_STATUS + dl_rel: +#endif + { + cb_log (3, stack->port, "L2: L2Link Down! port:%d\n", stack->port); + stack->l2link=0; + + if (cb_clearl3_true()) + clear_l3(stack); + + free_msg(msg); + return 1; + } + break; + } + return 0; +} + + +int handle_mgmt(msg_t *msg) +{ + iframe_t *frm = (iframe_t*) msg->data; + + if ( (frm->prim & 0x0f0000) == 0x0f0000) { + cb_log(5, 0, "$$$ MGMT FRAME: prim %x addr %x dinfo %x\n",frm->prim, frm->addr, frm->dinfo) ; + free_msg(msg); + return 1; + } + + return 0; +} + + +msg_t *fetch_msg(int midev) +{ + msg_t *msg=alloc_msg(MAX_MSG_SIZE); + int r; + fd_set rdfs; + + if (!msg) { + cb_log(0, 0, "fetch_msg: alloc msg failed !!"); + return NULL; + } + + FD_ZERO(&rdfs); + FD_SET(midev,&rdfs); + + mISDN_select(FD_SETSIZE, &rdfs, NULL, NULL, NULL); + + if (FD_ISSET(midev, &rdfs)) { + + r=mISDN_read(midev,msg->data,MAX_MSG_SIZE,0); + msg->len=r; + + if (r==0) { + free_msg(msg); /* danger, cauz usualy freeing in main_loop */ + printf ("Got empty Msg?\n"); + return NULL; + } + + return msg; + } else { + printf ("Select timeout\n"); + } + + return NULL; +} + + +static void misdn_lib_isdn_event_catcher(void *arg) +{ + struct misdn_lib *mgr = arg; + int zero_frm=0 , fff_frm=0 ; + int midev= mgr->midev; + int port; + + //cb_log(5, 0, "In event_catcher thread\n"); + + while (1) { + msg_t *msg = fetch_msg(midev); + iframe_t *frm; + + + if (!msg) continue; + + frm = (iframe_t*) msg->data; + port = frm->addr&IF_CONTRMASK; + + /** When we make a call from NT2Ast we get this frames **/ + if (frm->len == 0 && frm->addr == 0 && frm->dinfo == 0 && frm->prim == 0 ) { + zero_frm++; + free_msg(msg); + continue; + } else { + if (zero_frm) { + cb_log(0, port, "*** Alert: %d zero_frms caught\n", zero_frm); + zero_frm = 0 ; + } + } + + /** I get this sometimes after setup_bc **/ + if (frm->len == 0 && frm->dinfo == 0 && frm->prim == 0xffffffff ) { + fff_frm++; + free_msg(msg); + continue; + } else { + if (fff_frm) { + cb_log(0, port, "*** Alert: %d fff_frms caught\n", fff_frm); + fff_frm = 0 ; + } + } + + manager_isdn_handler(frm, msg); + } + +} + + +/** App Interface **/ + +int te_lib_init() { + char buff[1025]; + iframe_t *frm=(iframe_t*)buff; + int midev=mISDN_open(); + int ret; + + memset(buff,0,1025); + + if (midev<=0) return midev; + +/* create entity for layer 3 TE-mode */ + mISDN_write_frame(midev, buff, 0, MGR_NEWENTITY | REQUEST, 0, 0, NULL, TIMEOUT_1SEC); + ret = mISDN_read_frame(midev, frm, sizeof(iframe_t), 0, MGR_NEWENTITY | CONFIRM, TIMEOUT_1SEC); + + if (ret < mISDN_HEADER_LEN) { + noentity: + fprintf(stderr, "cannot request MGR_NEWENTITY from mISDN: %s\n",strerror(errno)); + exit(-1); + } + + entity = frm->dinfo & 0xffff ; + + if (!entity) + goto noentity; + + return midev; + +} + +void te_lib_destroy(int midev) +{ + char buf[1024]; + mISDN_write_frame(midev, buf, 0, MGR_DELENTITY | REQUEST, entity, 0, NULL, TIMEOUT_1SEC); + + cb_log(4, 0, "Entetity deleted\n"); + mISDN_close(midev); + cb_log(4, 0, "midev closed\n"); +} + + + +void misdn_lib_transfer(struct misdn_bchannel* holded_bc) +{ + holded_bc->holded=0; +} + +struct misdn_bchannel *manager_find_bc_by_pid(int pid) +{ + struct misdn_stack *stack; + int i; + + for (stack=glob_mgr->stack_list; + stack; + stack=stack->next) { + for (i=0; i<stack->b_num; i++) + if (stack->bc[i].pid == pid) return &stack->bc[i]; + } + + return NULL; +} + +struct misdn_bchannel *manager_find_bc_holded(struct misdn_bchannel* bc) +{ + return find_bc_holded(bc->stack); +} + + + +struct misdn_bchannel* misdn_lib_get_free_bc(int port, int channel) +{ + struct misdn_stack *stack; + int i; + + if (channel < 0 || channel > MAX_BCHANS) + return NULL; + + for (stack=glob_mgr->stack_list; stack; stack=stack->next) { + + if (stack->port == port) { + if (channel > 0) { + if (channel <= stack->b_num) { + for (i = 0; i < stack->b_num; i++) { + if (stack->bc[i].in_use && stack->bc[i].channel == channel) { + return NULL; + } + } + } else + return NULL; + } + for (i = 0; i < stack->b_num; i++) { + if (!stack->bc[i].in_use) { + stack->bc[i].channel = channel; + stack->bc[i].channel_preselected = channel?1:0; + stack->bc[i].in_use = 1; + return &stack->bc[i]; + } + } + return NULL; + } + } + return NULL; +} + +void misdn_lib_log_ies(struct misdn_bchannel *bc) +{ + if (!bc) return; + + cb_log(2, bc->stack->port, " --> mode:%s cause:%d ocause:%d rad:%s\n", bc->stack->mode==NT_MODE?"NT":"TE", bc->cause, bc->out_cause, bc->rad); + + cb_log(2, bc->stack->port, + " --> info_dad:%s onumplan:%c dnumplan:%c rnumplan:%c\n", + bc->info_dad, + bc->onumplan>=0?'0'+bc->onumplan:' ', + bc->dnumplan>=0?'0'+bc->dnumplan:' ', + bc->rnumplan>=0?'0'+bc->rnumplan:' ' + ); + + cb_log(2, bc->stack->port, " --> channel:%d caps:%s pi:%x keypad:%s\n", bc->channel, bearer2str(bc->capability),bc->progress_indicator, bc->keypad); + + cb_log(3, bc->stack->port, " --> pid:%d addr:%x l3id:%x\n", bc->pid, bc->addr, bc->l3_id); + + cb_log(4, bc->stack->port, " --> bc:%x h:%d sh:%d\n", bc, bc->holded, bc->stack_holder); +} + +int misdn_lib_send_event(struct misdn_bchannel *bc, enum event_e event ) +{ + msg_t *msg; + int err = -1 ; + + if (!bc) goto ERR; + + if ( bc->stack->mode == NT_MODE && !bc->stack->l1link) { + /** Queue Event **/ + bc->evq=event; + cb_log(1, bc->stack->port, "Queueing Event %s because L1 is down (btw. Activating L1)\n", isdn_get_info(msgs_g, event, 0)); + { /* Pull Up L1 */ + iframe_t act; + act.prim = PH_ACTIVATE | REQUEST; + act.addr = (bc->stack->upper_id & IF_ADDRMASK) | IF_DOWN ; + act.dinfo = 0; + act.len = 0; + mISDN_write(glob_mgr->midev, &act, mISDN_HEADER_LEN+act.len, TIMEOUT_1SEC); + } + + return 0; + } + + cb_log(1, bc->stack->port, "I SEND:%s oad:%s dad:%s port:%d\n", isdn_get_info(msgs_g, event, 0), bc->oad, bc->dad, bc->stack->port); + misdn_lib_log_ies(bc); + + switch (event) { + case EVENT_SETUP: + if (create_process(glob_mgr->midev, bc)<0) { + cb_log(0, bc->stack->port, " No free channel at the moment @ send_event\n"); + err=-ENOCHAN; + goto ERR; + } + break; + + case EVENT_CONNECT: + case EVENT_PROGRESS: + case EVENT_ALERTING: + case EVENT_PROCEEDING: + case EVENT_SETUP_ACKNOWLEDGE: + case EVENT_RETRIEVE_ACKNOWLEDGE: + + if (bc->stack->mode == NT_MODE) { + if (bc->channel <=0 ) { /* else we have the channel already */ + bc->channel = find_free_chan_in_stack(bc->stack, 0); + if (!bc->channel) { + cb_log(0, bc->stack->port, " No free channel at the moment\n"); + err=-ENOCHAN; + goto ERR; + } + } + /* Its that i generate channels */ + } + + setup_bc(bc); + + + if ( event == EVENT_CONNECT ) { + if ( *bc->crypt_key ) { + cb_log(4, bc->stack->port, " --> ENABLING BLOWFISH port:%d channel:%d oad%d:%s dad%d:%s \n", bc->stack->port, bc->channel, bc->onumplan,bc->oad, bc->dnumplan,bc->dad); + + manager_ph_control_block(bc, BF_ENABLE_KEY, bc->crypt_key, strlen(bc->crypt_key) ); + } + + if ( misdn_cap_is_speech(bc->capability)) { + if (!bc->nodsp) manager_ph_control(bc, DTMF_TONE_START, 0); + + if (bc->ec_enable) manager_ec_enable(bc); + + if (bc->txgain != 0) { + cb_log(4, bc->stack->port, "--> Changing txgain to %d\n", bc->txgain); + manager_ph_control(bc, VOL_CHANGE_TX, bc->txgain); + } + + if ( bc->rxgain != 0 ) { + cb_log(4, bc->stack->port, "--> Changing rxgain to %d\n", bc->rxgain); + manager_ph_control(bc, VOL_CHANGE_RX, bc->rxgain); + } + } + } + + if (event == EVENT_RETRIEVE_ACKNOWLEDGE) { + manager_bchannel_activate(bc); + } + + break; + + case EVENT_HOLD_ACKNOWLEDGE: + { + struct misdn_bchannel *holded_bc=malloc(sizeof(struct misdn_bchannel)); + + memcpy(holded_bc,bc,sizeof(struct misdn_bchannel)); + + holded_bc->holded=1; + stack_holder_add(bc->stack,holded_bc); + + if (bc->stack->mode == NT_MODE) { + empty_chan_in_stack(bc->stack,bc->channel); + empty_bc(bc); + clean_up_bc(bc); + } + + /** we set it up later at RETRIEVE_ACK again.**/ + holded_bc->upset=0; + holded_bc->active=0; + + cb_event( EVENT_NEW_BC, holded_bc, glob_mgr->user_data); + } + break; + + case EVENT_RELEASE: + break; + + case EVENT_RELEASE_COMPLETE: + empty_chan_in_stack(bc->stack,bc->channel); + empty_bc(bc); + clean_up_bc(bc); + break; + + case EVENT_CONNECT_ACKNOWLEDGE: + + if (misdn_cap_is_speech(bc->capability)) { + if ( !bc->nodsp) manager_ph_control(bc, DTMF_TONE_START, 0); + if (bc->ec_enable) manager_ec_enable(bc); + if ( bc->txgain != 0 ) { + cb_log(4, bc->stack->port, "--> Changing txgain to %d\n", bc->txgain); + manager_ph_control(bc, VOL_CHANGE_TX, bc->txgain); + } + if ( bc->rxgain != 0 ) { + cb_log(4, bc->stack->port, "--> Changing rxgain to %d\n", bc->rxgain); + manager_ph_control(bc, VOL_CHANGE_RX, bc->rxgain); + } + } + break; + + default: + break; + } + + /* Later we should think about sending bchannel data directly to misdn. */ + msg = isdn_msg_build_event(msgs_g, bc, event, bc->stack->mode==NT_MODE?1:0); + msg_queue_tail(&bc->stack->downqueue, msg); + sem_post(&glob_mgr->new_msg); + + return 0; + + ERR: + return -1; +} + + + +int manager_isdn_handler(iframe_t *frm ,msg_t *msg) +{ + + if (frm->dinfo==(signed long)0xffffffff && frm->prim==(PH_DATA|CONFIRM)) { + printf("SERIOUS BUG, dinfo == 0xffffffff, prim == PH_DATA | CONFIRM !!!!\n"); + } + + if (handle_timers(msg)) + return 0 ; + + if (handle_mgmt(msg)) + return 0 ; + + if (handle_l2(msg)) + return 0 ; + + /* Its important to handle l1 AFTER l2 */ + if (handle_l1(msg)) + return 0 ; + + if (handle_bchan(msg)) + return 0 ; + + /** Handle L2/3 Signalling after bchans **/ + if (handle_frm_nt(msg)) + return 0 ; + + if (handle_frm(msg)) + return 0 ; + + cb_log(0, frm->addr&IF_CONTRMASK, "Unhandled Message: prim %x len %d from addr %x, dinfo %x on port: %d\n",frm->prim, frm->len, frm->addr, frm->dinfo, frm->addr&IF_CONTRMASK); + + free_msg(msg); + + return 0; +} + + + + +int misdn_lib_get_port_info(int port) +{ + msg_t *msg=alloc_msg(MAX_MSG_SIZE); + iframe_t *frm; + struct misdn_stack *stack=find_stack_by_port(port); + if (!msg) { + cb_log(0, port, "misgn_lib_get_port: alloc_msg failed!\n"); + return -1; + } + frm=(iframe_t*)msg->data; + if (!stack ) { + cb_log(0, port, "There is no Stack on Port:%d\n",port); + return -1; + } + /* activate bchannel */ + frm->prim = CC_STATUS_ENQUIRY | REQUEST; + frm->addr = stack->upper_id; + frm->dinfo = 0; + frm->len = 0; + + msg_queue_tail(&glob_mgr->activatequeue, msg); + sem_post(&glob_mgr->new_msg); + + + return 0; +} + +int misdn_lib_port_restart(int port) +{ + struct misdn_stack *stack=find_stack_by_port(port); + + cb_log(0, port, "Restarting Port:%d\n",port); + if (stack) { + cb_log(0, port, "Stack:%p\n",stack); + + + clear_l3(stack); + + { + msg_t *msg=alloc_msg(MAX_MSG_SIZE); + iframe_t *frm; + + if (!msg) { + cb_log(0, port, "port_restart: alloc_msg fialed\n"); + return -1; + } + + frm=(iframe_t*)msg->data; + /* we must activate if we are deactivated */ + /* activate bchannel */ + + frm->prim = DL_RELEASE | REQUEST; + + frm->addr = stack->upper_id ; + frm->dinfo = 0; + frm->len = 0; + msg_queue_tail(&glob_mgr->activatequeue, msg); + sem_post(&glob_mgr->new_msg); + } + return 0; + + stack_te_destroy(stack); + + { + struct misdn_stack *tmpstack; + struct misdn_stack *newstack=stack_te_init(stack->midev ,port, stack->ptp); + + + if (stack == glob_mgr->stack_list) { + struct misdn_stack *n=glob_mgr->stack_list->next; + glob_mgr->stack_list = newstack ; + glob_mgr->stack_list->next = n; + } else { + for (tmpstack=glob_mgr->stack_list; + tmpstack->next; + tmpstack=tmpstack->next) + if (tmpstack->next == stack) break; + + if (!tmpstack->next) { + cb_log(0, port, "Stack to restart not found\n"); + return 0; + } else { + struct misdn_stack *n=tmpstack->next->next; + tmpstack->next=newstack; + newstack->next=n; + } + } + + { + int i; + for(i=0;i<newstack->b_num; i++) { + int r; + if ((r=init_bc(newstack, &newstack->bc[i], newstack->midev,port,i, "", 1))<0) { + cb_log(0, port, "Got Err @ init_bc :%d\n",r); + return 0; + } + } + } + + free(stack); + } + } + + return 0; +} + + + +sem_t handler_started; + +void manager_event_handler(void *arg) +{ + sem_post(&handler_started); + while (1) { + struct misdn_stack *stack; + msg_t *msg; + + /** wait for events **/ + sem_wait(&glob_mgr->new_msg); + + for (msg=msg_dequeue(&glob_mgr->activatequeue); + msg; + msg=msg_dequeue(&glob_mgr->activatequeue) + ) + { + + iframe_t *frm = (iframe_t*) msg->data ; + + switch ( frm->prim) { + case MGR_SETSTACK | REQUEST : + break; + default: + mISDN_write(glob_mgr->midev, frm, mISDN_HEADER_LEN+frm->len, TIMEOUT_1SEC); + free_msg(msg); + } + } + + for (stack=glob_mgr->stack_list; + stack; + stack=stack->next ) { + while ( (msg=msg_dequeue(&stack->downqueue)) ) { + + if (stack->mode == NT_MODE ){ + + if (stack->nst.manager_l3(&stack->nst, msg)) + cb_log(0, stack->port, "Error@ Sending Message in NT-Stack.\n"); + + } else { + if (msg) { + iframe_t *frm = (iframe_t *)msg->data; + struct misdn_bchannel *bc = find_bc_by_l3id(stack, frm->dinfo); + + if (bc) send_msg(glob_mgr->midev, bc, msg); + } + } + } + } + } +} + + +int misdn_lib_maxports_get() { /** BE AWARE WE HAVE NO CB_LOG HERE! **/ + + int i = mISDN_open(); + int max=0; + + if (i<0) + return -1; + + max = mISDN_get_stack_count(i); + + mISDN_close(i); + + return max; +} + +int misdn_lib_init(char *portlist, struct misdn_lib_iface *iface, void *user_data) +{ + struct misdn_lib *mgr=calloc(1, sizeof(struct misdn_lib)); + char *tok, *tokb; + char plist[1024]; + int midev; + int port_count=0; + + cb_log = iface->cb_log; + cb_event = iface->cb_event; + cb_clearl3_true = iface->cb_clearl3_true; + + glob_mgr = mgr; + + msg_init(); + debug_init(0 , NULL, NULL, NULL); + + if (!portlist || (*portlist == 0) ) return 1; + + init_flip_bits(); + + { + strncpy(plist,portlist, 1024); + plist[1023] = 0; + } + + memcpy(tone_425_flip,tone_425,TONE_425_SIZE); + flip_buf_bits(tone_425_flip,TONE_425_SIZE); + + memcpy(tone_silence_flip,tone_SILENCE,TONE_SILENCE_SIZE); + flip_buf_bits(tone_silence_flip,TONE_SILENCE_SIZE); + + midev=te_lib_init(); + mgr->midev=midev; + + port_count=mISDN_get_stack_count(midev); + + msg_queue_init(&mgr->activatequeue); + + if (sem_init(&mgr->new_msg, 1, 0)<0) + sem_init(&mgr->new_msg, 0, 0); + + for (tok=strtok_r(plist," ,",&tokb ); + tok; + tok=strtok_r(NULL," ,",&tokb)) { + int port = atoi(tok); + struct misdn_stack *stack; + static int first=1; + int ptp=0; + + if (strstr(tok, "ptp")) + ptp=1; + + if (port > port_count) { + cb_log(0, port, "Couldn't Initialize Port:%d since we have only %d ports\n",port, port_count); + exit(1); + } + stack=stack_te_init(midev, port, ptp); + + + + if (!stack) { + perror("init_stack"); + exit(1); + } + + if (stack && first) { + mgr->stack_list=stack; + first=0; + { + int i; + for(i=0;i<stack->b_num; i++) { + int r; + if ((r=init_bc(stack, &stack->bc[i], stack->midev,port,i, "", 1))<0) { + cb_log(0, port, "Got Err @ init_bc :%d\n",r); + exit(1); + } + } + } + + continue; + } + + if (stack) { + struct misdn_stack * help; + for ( help=mgr->stack_list; help; help=help->next ) + if (help->next == NULL) break; + + + help->next=stack; + + { + int i; + for(i=0;i<stack->b_num; i++) { + int r; + if ((r=init_bc(stack, &stack->bc[i], stack->midev,port,i, "",1 ))<0) { + cb_log(0, port, "Got Err @ init_bc :%d\n",r); + exit(1); + } + } + } + } + + } + + if (sem_init(&handler_started, 1, 0)<0) + sem_init(&handler_started, 0, 0); + + cb_log(4, 0, "Starting Event Handler\n"); + pthread_create( &mgr->event_handler_thread, NULL,(void*)manager_event_handler, mgr); + + sem_wait(&handler_started) ; + cb_log(4, 0, "Starting Event Catcher\n"); + pthread_create( &mgr->event_thread, NULL, (void*)misdn_lib_isdn_event_catcher, mgr); + + cb_log(4, 0, "Event Catcher started\n"); + + global_state= MISDN_INITIALIZED; + + return (mgr == NULL); +} + + + +void misdn_lib_destroy() +{ + struct misdn_stack *help; + int i; + + for ( help=glob_mgr->stack_list; help; help=help->next ) { + for(i=0;i<help->b_num; i++) { + char buf[1024]; + + mISDN_write_frame(help->midev, buf, help->bc[i].addr, MGR_DELLAYER | REQUEST, 0, 0, NULL, TIMEOUT_1SEC); + help->bc[i].addr = 0; + } + + + cb_log (1, help->port, "Destroying port:%d\n", help->port); + stack_te_destroy(help); + } + + if (global_state == MISDN_INITIALIZED) { + cb_log(4, 0, "Killing Handler Thread\n"); + if ( pthread_cancel(glob_mgr->event_handler_thread) == 0 ) { + cb_log(4, 0, "Joining Handler Thread\n"); + pthread_join(glob_mgr->event_handler_thread, NULL); + } + + + cb_log(4, 0, "Killing Main Thread\n"); + if ( pthread_cancel(glob_mgr->event_thread) == 0 ) { + cb_log(4, 0, "Joining Main Thread\n"); + pthread_join(glob_mgr->event_thread, NULL); + } + } + + cb_log(1, 0, "Closing mISDN device\n"); + te_lib_destroy(glob_mgr->midev); +} + + +char *manager_isdn_get_info(enum event_e event) +{ + return isdn_get_info(msgs_g , event, 0); +} + + + + +void manager_bchannel_activate(struct misdn_bchannel *bc) +{ + msg_t *msg=alloc_msg(MAX_MSG_SIZE); + iframe_t *frm; + + if (!msg) { + cb_log(0, bc->stack->port, "bchannel_activate: alloc_msg failed !"); + return ; + } + + frm=(iframe_t*)msg->data; + /* we must activate if we are deactivated */ + clear_ibuffer(bc->misdnbuf); + clear_ibuffer(bc->astbuf); + + + if (bc->active) return; + + cb_log(5, bc->stack->port, "$$$ Bchan Activated addr %x\n", bc->addr); + + /* activate bchannel */ + frm->prim = DL_ESTABLISH | REQUEST; + frm->addr = bc->addr ; + frm->dinfo = 0; + frm->len = 0; + + msg_queue_tail(&glob_mgr->activatequeue, msg); + sem_post(&glob_mgr->new_msg); + + bc->active=1; + + return ; + +} + + +void manager_bchannel_deactivate(struct misdn_bchannel * bc) +{ + iframe_t dact; + + + if (!bc->active) return; + + cb_log(5, bc->stack->port, "$$$ Bchan deActivated addr %x\n", bc->addr); + + bc->tone=TONE_NONE; + + dact.prim = DL_RELEASE | REQUEST; + dact.addr = bc->addr; + dact.dinfo = 0; + dact.len = 0; + + mISDN_write(bc->stack->midev, &dact, mISDN_HEADER_LEN+dact.len, TIMEOUT_1SEC); + clear_ibuffer(bc->misdnbuf); + clear_ibuffer(bc->astbuf); + bc->active=0; + + return; +} + + +int manager_tx2misdn_frm(struct misdn_bchannel *bc, void *data, int len) +{ + + if (!bc->active) return -1; + + flip_buf_bits(data,len); + + if ( !bc->nojitter && misdn_cap_is_speech(bc->capability) ) { + if (len > ibuf_freecount(bc->misdnbuf)) { + len=ibuf_freecount(bc->misdnbuf); + } + ibuf_memcpy_w(bc->misdnbuf, (unsigned char*)data, len); + } else { + char buf[4096 + mISDN_HEADER_LEN]; + iframe_t *frm= (iframe_t*)buf; + int r; + + frm->prim = DL_DATA|REQUEST; + frm->dinfo = 0; + frm->addr = bc->addr | IF_DOWN; + frm->len = len; + memcpy(&buf[mISDN_HEADER_LEN], data,len); + + + + if ( misdn_cap_is_speech(bc->capability)) + cb_log(4, bc->stack->port, "Writing %d bytes\n",len); + + cb_log(9, bc->stack->port, "Wrinting %d bytes 2 mISDN\n",len); + r=mISDN_write(bc->stack->midev, buf, frm->len + mISDN_HEADER_LEN, TIMEOUT_INFINIT); + } + + return 0; +} + + + + +void manager_send_tone (struct misdn_bchannel *bc, enum tone_e tone) +{ + if (tone != TONE_NONE) manager_bchannel_activate(bc); + bc->tone=tone; + bc->tone_cnt2=-1; + bc->tone_cnt=0; +} + + + +/* + * send control information to the channel (dsp-module) + */ +void manager_ph_control(struct misdn_bchannel *bc, int c1, int c2) +{ + unsigned char buffer[mISDN_HEADER_LEN+sizeof(int)+sizeof(int)]; + iframe_t *ctrl = (iframe_t *)buffer; /* preload data */ + unsigned long *d = (unsigned long *)&ctrl->data.p; + + ctrl->prim = PH_CONTROL | REQUEST; + ctrl->addr = bc->addr; + ctrl->dinfo = 0; + ctrl->len = sizeof(unsigned long)*2; + *d++ = c1; + *d++ = c2; + mISDN_write(bc->stack->midev, ctrl, mISDN_HEADER_LEN+ctrl->len, TIMEOUT_1SEC); +} + +/* + * send control information to the channel (dsp-module) + */ +void manager_ph_control_block(struct misdn_bchannel *bc, int c1, void *c2, int c2_len) +{ + 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 = bc->addr; + ctrl->dinfo = 0; + ctrl->len = sizeof(unsigned long) + c2_len; + *d++ = c1; + memcpy(d, c2, c2_len); + mISDN_write(bc->stack->midev, ctrl, mISDN_HEADER_LEN+ctrl->len, TIMEOUT_1SEC); +} + + + + +void manager_clean_bc(struct misdn_bchannel *bc ) +{ + if (bc->state == STATE_CONNECTED) + misdn_lib_send_event(bc,EVENT_DISCONNECT); + + empty_chan_in_stack(bc->stack, bc->channel); + empty_bc(bc); + + misdn_lib_send_event(bc,EVENT_RELEASE_COMPLETE); +} + + +void stack_holder_add(struct misdn_stack *stack, struct misdn_bchannel *holder) +{ + struct misdn_bchannel *help; + + cb_log(4,holder->stack->port, "*HOLDER: add %x\n",holder->l3_id); + + holder->stack_holder=1; + + if (!stack ) return ; + + holder->next=NULL; + + if (!stack->holding) { + stack->holding = holder; + return; + } + + for (help=stack->holding; + help; + help=help->next) { + if (!help->next) { + help->next=holder; + } + } + +} + +void stack_holder_remove(struct misdn_stack *stack, struct misdn_bchannel *holder) +{ + struct misdn_bchannel *h1; + + if (!holder->stack_holder) return; + + cb_log(4,holder->stack->port, "*HOLDER: remove %x\n",holder->l3_id); + if (!stack || ! stack->holding) return; + + if (holder == stack->holding) { + stack->holding = stack->holding->next; + return; + } + + for (h1=stack->holding; + h1; + h1=h1->next) { + if (h1->next == holder) { + h1->next=h1->next->next; + return ; + } + } +} + + +struct misdn_bchannel *stack_holder_find(struct misdn_stack *stack, unsigned long l3id) +{ + struct misdn_bchannel *help; + + cb_log(4,stack?stack->port:0, "*HOLDER: find %x\n",l3id); + + if (!stack) return NULL; + + for (help=stack->holding; + help; + help=help->next) { + if (help->l3_id == l3id) { + cb_log(4,stack->port, "*HOLDER: found bc\n"); + return help; + } + } + + cb_log(4,stack->port, "*HOLDER: find nothing\n"); + return NULL; +} + + + +void manager_ec_enable(struct misdn_bchannel *bc) +{ + int ec_arr[2]; + + cb_log(1, bc?bc->stack->port:0,"Sending Control ECHOCAN_ON enblock\n"); + + switch (bc->ec_deftaps) { + case 4: + case 8: + case 16: + case 32: + case 64: + case 128: + case 256: + case 512: + case 1024: + cb_log(4, bc->stack->port, "Taps is %d\n",bc->ec_deftaps); + break; + default: + cb_log(0, bc->stack->port, "Taps should be power of 2\n"); + bc->ec_deftaps=128; + } + + ec_arr[0]=bc->ec_deftaps; + ec_arr[1]=bc->ec_training; + + manager_ph_control_block(bc, ECHOCAN_ON, ec_arr, sizeof(ec_arr)); +} + + +void manager_ec_disable(struct misdn_bchannel *bc) +{ + cb_log(1, bc?bc->stack->port:0, "Sending Control ECHOCAN_OFF\n"); + manager_ph_control(bc, ECHOCAN_OFF, 0); +} + +struct misdn_stack* get_misdn_stack() { + return glob_mgr->stack_list; +} |