/*****************************************************************************\ ** ** ** PBX4Linux ** ** ** **---------------------------------------------------------------------------** ** Copyright: Andreas Eversberg ** ** ** ** mISDN-port header file ** ** ** \*****************************************************************************/ enum { B_STATE_IDLE, B_STATE_ACTIVATING, B_STATE_ACTIVE, B_STATE_DEACTIVATING, }; enum { B_EVENT_ACTIVATE, B_EVENT_ACTIVATED, B_EVENT_DEACTIVATE, B_EVENT_DEACTIVATED, }; #define FROMUP_BUFFER_SIZE 1024 #define FROMUP_BUFFER_MASK 1023 extern int entity; extern int mISDNdevice; /* mISDN port structure list */ struct mISDNport { net_stack_t nst; /* MUST be the first entry, so &nst equals &mISDNlist */ manager_t mgr; struct mISDNport *next; struct interface_port *ifport; /* link to interface_port */ // int iftype; /* IF_* */ // int multilink; /* if set, this port will not support callwaiting */ int portnum; /* port number */ int ptp; /* if ptp is set, we keep track of l2link */ int l1link; /* if l1 is available (only works with nt-mode) */ int l2link; /* if l2 is available (at PTP we take this serious) */ // time_t l1timeout; /* timout when establishing link */ time_t l2establish; /* time until establishing after link failure */ int use; /* counts the number of port that uses this port */ int ntmode; /* is TRUE if port is nt mode */ int pri; /* is TRUE if port is a primary rate interface */ int tones; /* TRUE if tones are sent outside connect state */ int earlyb; /* TRUE if tones are received outside connect state */ int upper_id; /* id to transfer data down */ int lower_id; /* id to transfer data up */ int d_stid; int b_num; /* number of bchannels */ int b_reserved; /* number of bchannels reserved or in use */ class PmISDN *b_port[128]; /* maximum number of ports shall be 128 due to S0 / E1 / special E1 */ int b_stid[128]; int b_addr[128]; int b_state[128]; /* state 0 = IDLE */ int procids[128]; /* keep track of free ids */ msg_queue_t downqueue; /* l4->l3 */ }; extern mISDNport *mISDNport_first; /* notes on bchannels: if a b-channel is in use, the b_port[channel] is linked to the port using it. also each used b-channel counts b_inuse. to assign a bchannel, that is not jet defined due to remote channel assignment, the b_inuse is also increased to reserve channel 'use' is the number of port instances using this mISDNport. this counts also calls with no bchannel (call waiting, call on hold). */ /* mISDN none-object functions */ void mISDN_port_info(void); struct mISDNport *mISDNport_open(int port, int ptp, int ptmp, struct interface *interface); void mISDNport_close_all(void); void mISDNport_close(struct mISDNport *mISDNport); void mISDN_port_reorder(void); int mISDN_handler(void); void enc_ie_cause_standalone(unsigned char **ntmode, msg_t *msg, int location, int cause); void ph_control(struct mISDNport *mISDNport, class PmISDN *isdnport, unsigned long b_addr, int c1, int c2, char *trace_name, int trace_value); void ph_control_block(struct mISDNport *mISDNport, unsigned long b_addr, int c1, void *c2, int c2_len, char *trace_name, int trace_value); msg_t *create_l2msg(int prim, int dinfo, int size); void setup_queue(struct mISDNport *mISDNport, int link); int stack2manager_nt(void *dat, void *arg); int stack2manager_te(struct mISDNport *mISDNport, msg_t *msg); void chan_trace_header(struct mISDNport *mISDNport, class PmISDN *port, char *msgtext, int direction); void l1l2l3_trace_header(struct mISDNport *mISDNport, class PmISDN *port, unsigned long prim, int direction); void bchannel_event(struct mISDNport *mISDNport, int i, int event); /* mISDN port classes */ class PmISDN : public Port { public: PmISDN(int type, struct mISDNport *mISDNport, char *portname, struct port_settings *settings, int channel, int exclusive); ~PmISDN(); void bchannel_receive(iframe_t *frm); int handler(void); void transmit(unsigned char *buffer, int length); int message_epoint(unsigned long epoint_id, int message, union parameter *param); void message_mISDNsignal(unsigned long epoint_id, int message_id, union parameter *param); void message_crypt(unsigned long epoint_id, int message_id, union parameter *param); struct mISDNport *p_m_mISDNport; /* pointer to port */ int p_m_delay; /* use delay instead of dejitter */ int p_m_txvol, p_m_rxvol; /* volume shift (0 = no change) */ int p_m_echo, p_m_conf; /* remote echo, conference number */ int p_m_tone; /* current kernel space tone */ int p_m_rxoff; /* rx from driver is disabled */ // int p_m_nodata; /* all parties within a conf are isdn ports, so pure bridging is possible */ int p_m_txdata; /* get what we transmit */ int p_m_dtmf; /* dtmf decoding is enabled */ int p_m_calldata; /* the call requires data due to no briging capability */ int p_m_fromup_buffer_readp; /* buffer for audio from remote endpoint */ int p_m_fromup_buffer_writep; unsigned char p_m_fromup_buffer[FROMUP_BUFFER_SIZE]; void txfromup(unsigned char *data, int length); int p_m_crypt; /* encryption is enabled */ int p_m_crypt_msg_loops; /* sending a message */ int p_m_crypt_msg_len; unsigned char p_m_crypt_msg[1100]; int p_m_crypt_msg_current; unsigned char p_m_crypt_key[128]; int p_m_crypt_key_len; int p_m_crypt_listen; int p_m_crypt_listen_state; int p_m_crypt_listen_len; unsigned char p_m_crypt_listen_msg[1100]; unsigned long p_m_crypt_listen_crc; void cryptman_listen_bch(unsigned char *p, int l); void set_tone(char *dir, char *name); void set_echotest(int echotest); int p_m_portnum; /* used port number (1...n) */ int p_m_b_index; /* index 0,1 0..29 */ int p_m_b_channel; /* number 1,2 1..15,17... */ int p_m_b_exclusive; /* if bchannel is exclusive */ int p_m_b_reserve; /* set if channel is reserved */ long long p_m_jittercheck; /* time of audio data */ long long p_m_jitterdropped; /* number of bytes dropped */ int p_m_delete; /* true if obj. must del. */ int p_m_hold; /* if port is on hold */ unsigned long p_m_timeout; /* timeout of timers */ time_t p_m_timer; /* start of timer */ int seize_bchannel(int channel, int exclusive); /* requests / reserves / links bchannels, but does not open it! */ void drop_bchannel(void); }; extern unsigned char mISDN_rand[256]; /* noisy randomizer */