143 lines
5.7 KiB
C++
143 lines
5.7 KiB
C++
/*****************************************************************************\
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** **
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** PBX4Linux **
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** **
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**---------------------------------------------------------------------------**
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** Copyright: Andreas Eversberg **
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** **
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** mISDN-port header file **
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** **
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\*****************************************************************************/
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#define B_STATE_IDLE 0
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#define B_STATE_ACTIVATING 1
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#define B_STATE_ACTIVE 2
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#define B_STATE_DEACTIVATING 3
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extern int entity;
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extern int mISDNdevice;
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/* mISDN port structure list */
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struct mISDNport {
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net_stack_t nst; /* MUST be the first entry, so &nst equals &mISDNlist */
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manager_t mgr;
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struct mISDNport *next;
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struct interface_port *ifport; /* link to interface_port */
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// int iftype; /* IF_* */
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// int multilink; /* if set, this port will not support callwaiting */
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int portnum; /* port number */
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int ptp; /* if ptp is set, we keep track of l2link */
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int l1link; /* if l1 is available (only works with nt-mode) */
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int l2link; /* if l2 is available (at PTP we take this serious) */
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// time_t l1timeout; /* timout when establishing link */
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time_t l2establish; /* time until establishing after link failure */
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int use; /* counts the number of port that uses this port */
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int ntmode; /* is TRUE if port is nt mode */
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int pri; /* is TRUE if port is a primary rate interface */
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int upper_id; /* id to transfer data down */
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int lower_id; /* id to transfer data up */
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int d_stid;
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int b_num; /* number of bchannels */
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int b_reserved; /* number of bchannels reserved or in use */
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class PmISDN *b_port[128]; /* maximum number of ports shall be 128 due to S0 / E1 / special E1 */
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int b_stid[128];
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int b_addr[128];
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int b_state[128]; /* state 0 = IDLE */
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int procids[128]; /* keep track of free ids */
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msg_queue_t downqueue; /* l4->l3 */
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};
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extern mISDNport *mISDNport_first;
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/*
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notes on bchannels:
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if a b-channel is in use, the b_port[channel] is linked to the port using it.
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also each used b-channel counts b_inuse.
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to assign a bchannel, that is not jet defined due to remote channel assignment,
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the b_inuse is also increased to reserve channel
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'use' is the number of port instances using this mISDNport. this counts also
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calls with no bchannel (call waiting, call on hold).
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*/
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/* mISDN none-object functions */
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void mISDN_port_info(void);
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struct mISDNport *mISDNport_open(int port, int ptp);
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void mISDNport_close_all(void);
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void mISDNport_close(struct mISDNport *mISDNport);
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void mISDN_port_reorder(void);
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int mISDN_handler(void);
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void enc_ie_cause_standalone(unsigned char **ntmode, msg_t *msg, int location, int cause);
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void ph_control(unsigned long b_addr, int c1, int c2);
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void ph_control_block(unsigned long b_addr, int c1, void *c2, int c2_len);
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msg_t *create_l2msg(int prim, int dinfo, int size);
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void setup_queue(struct mISDNport *mISDNport, int link);
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int stack2manager_nt(void *dat, void *arg);
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int stack2manager_te(struct mISDNport *mISDNport, msg_t *msg);
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/* mISDN port classes */
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class PmISDN : public Port
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{
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public:
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PmISDN(int type, struct mISDNport *mISDNport, char *portname, struct port_settings *settings, int channel);
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~PmISDN();
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void bchannel_receive(iframe_t *frm);
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int handler(void);
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int message_epoint(unsigned long epoint_id, int message, union parameter *param);
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void message_mISDNsignal(unsigned long epoint_id, int message_id, union parameter *param);
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void message_crypt(unsigned long epoint_id, int message_id, union parameter *param);
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struct mISDNport *p_m_mISDNport; /* pointer to port */
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int p_m_delay; /* use delay instead of dejitter */
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int p_m_txvol, p_m_rxvol; /* volume shift (0 = no change) */
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int p_m_echo, p_m_conf; /* remote echo, conference number */
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int p_m_tone; /* current kernel space tone */
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int p_m_rxoff; /* rx from driver is disabled */
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int p_m_nodata; /* all parties within a conf are isdn ports, so pure bridging is possible */
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int p_m_txmix; /* mix tx with conference */
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int p_m_txmix_on; /* delay for turning back on after sending a binary message, must be signed */
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int p_m_dtmf; /* dtmf decoding is enabled */
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int p_m_crypt; /* encryption is enabled */
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int p_m_crypt_msg_loops; /* sending a message */
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int p_m_crypt_msg_len;
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unsigned char p_m_crypt_msg[1100];
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int p_m_crypt_msg_current;
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unsigned char p_m_crypt_key[128];
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int p_m_crypt_key_len;
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int p_m_crypt_listen;
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int p_m_crypt_listen_state;
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int p_m_crypt_listen_len;
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unsigned char p_m_crypt_listen_msg[1100];
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unsigned long p_m_crypt_listen_crc;
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void cryptman_listen_bch(unsigned char *p, int l);
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void set_tone(char *dir, char *name);
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void set_echotest(int echotest);
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int p_m_portnum; /* used port number (1...n) */
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int p_m_b_index; /* index 0,1 0..29 */
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int p_m_b_channel; /* number 1,2 1..15,17... */
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int p_m_b_exclusive; /* if bchannel is exclusive */
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// int p_m_b_reserved; /* set if channel is reserved */
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int p_m_b_stid; /* current stack id */
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int p_m_b_addr; /* current layer address */
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long long p_m_jittercheck; /* time of audio data */
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long long p_m_jitterdropped; /* number of bytes dropped */
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int p_m_delete; /* true if obj. must del. */
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int p_m_hold; /* if port is on hold */
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unsigned long p_m_timeout; /* timeout of timers */
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time_t p_m_timer; /* start of timer */
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int alloc_bchannel(int channel, int exclusive);
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void free_bchannel(void);
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};
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extern unsigned char mISDN_rand[256]; /* noisy randomizer */
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