88 строки
2.4 KiB
C
88 строки
2.4 KiB
C
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/*
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* CAPI encode/decode prototypes and defines
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*
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* Copyright (C) 1996 Universidade de Lisboa
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*
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* Written by Pedro Roque Marques (roque@di.fc.ul.pt)
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*
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* This software may be used and distributed according to the terms of
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* the GNU General Public License, incorporated herein by reference.
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*/
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#ifndef CAPI_H
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#define CAPI_H
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#define REQ_CAUSE 0x01
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#define REQ_DISPLAY 0x04
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#define REQ_USER_TO_USER 0x08
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#define AppInfoMask REQ_CAUSE|REQ_DISPLAY|REQ_USER_TO_USER
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/* Connection Setup */
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extern int capi_conn_req(const char * calledPN, struct sk_buff **buf,
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int proto);
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extern int capi_decode_conn_conf(struct pcbit_chan * chan, struct sk_buff *skb,
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int *complete);
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extern int capi_decode_conn_ind(struct pcbit_chan * chan, struct sk_buff *skb,
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struct callb_data *info);
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extern int capi_conn_resp(struct pcbit_chan* chan, struct sk_buff **skb);
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extern int capi_conn_active_req(struct pcbit_chan* chan, struct sk_buff **skb);
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extern int capi_decode_conn_actv_conf(struct pcbit_chan * chan,
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struct sk_buff *skb);
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extern int capi_decode_conn_actv_ind(struct pcbit_chan * chan,
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struct sk_buff *skb);
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extern int capi_conn_active_resp(struct pcbit_chan* chan,
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struct sk_buff **skb);
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/* Data */
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extern int capi_select_proto_req(struct pcbit_chan *chan, struct sk_buff **skb,
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int outgoing);
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extern int capi_decode_sel_proto_conf(struct pcbit_chan *chan,
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struct sk_buff *skb);
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extern int capi_activate_transp_req(struct pcbit_chan *chan,
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struct sk_buff **skb);
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extern int capi_decode_actv_trans_conf(struct pcbit_chan *chan,
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struct sk_buff *skb);
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extern int capi_tdata_req(struct pcbit_chan* chan, struct sk_buff *skb);
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extern int capi_tdata_resp(struct pcbit_chan *chan, struct sk_buff ** skb);
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/* Connection Termination */
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extern int capi_disc_req(ushort callref, struct sk_buff **skb, u_char cause);
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extern int capi_decode_disc_ind(struct pcbit_chan *chan, struct sk_buff *skb);
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extern int capi_disc_resp(struct pcbit_chan *chan, struct sk_buff **skb);
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#ifdef DEBUG
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extern int capi_decode_debug_188(u_char *hdr, ushort hdrlen);
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#endif
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static inline struct pcbit_chan *
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capi_channel(struct pcbit_dev *dev, struct sk_buff *skb)
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{
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ushort callref;
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callref = *((ushort*) skb->data);
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skb_pull(skb, 2);
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if (dev->b1->callref == callref)
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return dev->b1;
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else if (dev->b2->callref == callref)
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return dev->b2;
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return NULL;
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}
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#endif
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