diff options
Diffstat (limited to 'pfinet/linux-src/include/linux/isdn_ppp.h')
| -rw-r--r-- | pfinet/linux-src/include/linux/isdn_ppp.h | 240 |
1 files changed, 240 insertions, 0 deletions
diff --git a/pfinet/linux-src/include/linux/isdn_ppp.h b/pfinet/linux-src/include/linux/isdn_ppp.h new file mode 100644 index 00000000..a62101d0 --- /dev/null +++ b/pfinet/linux-src/include/linux/isdn_ppp.h @@ -0,0 +1,240 @@ +/* -*- mode: c; c-basic-offset: 2 -*- */ + +#ifndef _LINUX_ISDN_PPP_H +#define _LINUX_ISDN_PPP_H + +#include <linux/isdn_compat.h> + +#define CALLTYPE_INCOMING 0x1 +#define CALLTYPE_OUTGOING 0x2 +#define CALLTYPE_CALLBACK 0x4 + +#define IPPP_VERSION "2.2.0" + +struct pppcallinfo +{ + int calltype; + unsigned char local_num[64]; + unsigned char remote_num[64]; + int charge_units; +}; + +#define PPPIOCGCALLINFO _IOWR('t',128,struct pppcallinfo) +#define PPPIOCBUNDLE _IOW('t',129,int) +#define PPPIOCGMPFLAGS _IOR('t',130,int) +#define PPPIOCSMPFLAGS _IOW('t',131,int) +#define PPPIOCSMPMTU _IOW('t',132,int) +#define PPPIOCSMPMRU _IOW('t',133,int) +#define PPPIOCGCOMPRESSORS _IOR('t',134,unsigned long [8]) +#define PPPIOCSCOMPRESSOR _IOW('t',135,int) +#define PPPIOCGIFNAME _IOR('t',136, char [IFNAMSIZ] ) + +#define PPP_MP 0x003d +#define PPP_LINK_COMP 0x00fb +#define PPP_LINK_CCP 0x80fb + +#define SC_MP_PROT 0x00000200 +#define SC_REJ_MP_PROT 0x00000400 +#define SC_OUT_SHORT_SEQ 0x00000800 +#define SC_IN_SHORT_SEQ 0x00004000 + +#define SC_DECOMP_ON 0x01 +#define SC_COMP_ON 0x02 +#define SC_DECOMP_DISCARD 0x04 +#define SC_COMP_DISCARD 0x08 +#define SC_LINK_DECOMP_ON 0x10 +#define SC_LINK_COMP_ON 0x20 +#define SC_LINK_DECOMP_DISCARD 0x40 +#define SC_LINK_COMP_DISCARD 0x80 + +#define DECOMP_ERR_NOMEM (-10) + +#define MP_END_FRAG 0x40 +#define MP_BEGIN_FRAG 0x80 + +#define ISDN_PPP_COMP_MAX_OPTIONS 16 + +#define IPPP_COMP_FLAG_XMIT 0x1 +#define IPPP_COMP_FLAG_LINK 0x2 + +struct isdn_ppp_comp_data { + int num; + unsigned char options[ISDN_PPP_COMP_MAX_OPTIONS]; + int optlen; + int flags; +}; + +#ifdef __KERNEL__ + +/* + * We need a way for the decompressor to influence the generation of CCP + * Reset-Requests in a variety of ways. The decompressor is already returning + * a lot of information (generated skb length, error conditions) so we use + * another parameter. This parameter is a pointer to a structure which is + * to be marked valid by the decompressor and only in this case is ever used. + * Furthermore, the only case where this data is used is when the decom- + * pressor returns DECOMP_ERROR. + * + * We use this same struct for the reset entry of the compressor to commu- + * nicate to its caller how to deal with sending of a Reset Ack. In this + * case, expra is not used, but other options still apply (supressing + * sending with rsend, appending arbitrary data, etc). + */ + +#define IPPP_RESET_MAXDATABYTES 32 + +struct isdn_ppp_resetparams { + unsigned char valid:1; /* rw Is this structure filled at all ? */ + unsigned char rsend:1; /* rw Should we send one at all ? */ + unsigned char idval:1; /* rw Is the id field valid ? */ + unsigned char dtval:1; /* rw Is the data field valid ? */ + unsigned char expra:1; /* rw Is an Ack expected for this Req ? */ + unsigned char id; /* wo Send CCP ResetReq with this id */ + unsigned short maxdlen; /* ro Max bytes to be stored in data field */ + unsigned short dlen; /* rw Bytes stored in data field */ + unsigned char *data; /* wo Data for ResetReq info field */ +}; + +/* + * this is an 'old friend' from ppp-comp.h under a new name + * check the original include for more information + */ +struct isdn_ppp_compressor { + struct isdn_ppp_compressor *next, *prev; + int num; /* CCP compression protocol number */ + + void *(*alloc) (struct isdn_ppp_comp_data *); + void (*free) (void *state); + int (*init) (void *state, struct isdn_ppp_comp_data *, + int unit,int debug); + + /* The reset entry needs to get more exact information about the + ResetReq or ResetAck it was called with. The parameters are + obvious. If reset is called without a Req or Ack frame which + could be handed into it, code MUST be set to 0. Using rsparm, + the reset entry can control if and how a ResetAck is returned. */ + + void (*reset) (void *state, unsigned char code, unsigned char id, + unsigned char *data, unsigned len, + struct isdn_ppp_resetparams *rsparm); + + int (*compress) (void *state, struct sk_buff *in, + struct sk_buff *skb_out, int proto); + + int (*decompress) (void *state,struct sk_buff *in, + struct sk_buff *skb_out, + struct isdn_ppp_resetparams *rsparm); + + void (*incomp) (void *state, struct sk_buff *in,int proto); + void (*stat) (void *state, struct compstat *stats); +}; + +extern int isdn_ppp_register_compressor(struct isdn_ppp_compressor *); +extern int isdn_ppp_unregister_compressor(struct isdn_ppp_compressor *); +extern int isdn_ppp_dial_slave(char *); +extern int isdn_ppp_hangup_slave(char *); + +struct ippp_bundle { + int mp_mrru; /* unused */ + struct mpqueue *last; /* currently defined in isdn_net_dev */ + int min; /* currently calculated 'on the fly' */ + long next_num; /* we wanna see this seq.-number next */ + struct sqqueue *sq; + int modify:1; /* set to 1 while modifying sqqueue */ + int bundled:1; /* bundle active ? */ +}; + +#define NUM_RCV_BUFFS 64 + +struct sqqueue { + struct sqqueue *next; + long sqno_start; + long sqno_end; + struct sk_buff *skb; + long timer; +}; + +struct mpqueue { + struct mpqueue *next; + struct mpqueue *last; + long sqno; + struct sk_buff *skb; + int BEbyte; + unsigned long time; +}; + +struct ippp_buf_queue { + struct ippp_buf_queue *next; + struct ippp_buf_queue *last; + char *buf; /* NULL here indicates end of queue */ + int len; +}; + +/* The data structure for one CCP reset transaction */ +enum ippp_ccp_reset_states { + CCPResetIdle, + CCPResetSentReq, + CCPResetRcvdReq, + CCPResetSentAck, + CCPResetRcvdAck +}; + +struct ippp_ccp_reset_state { + enum ippp_ccp_reset_states state; /* State of this transaction */ + struct ippp_struct *is; /* Backlink to device stuff */ + unsigned char id; /* Backlink id index */ + unsigned char ta:1; /* The timer is active (flag) */ + unsigned char expra:1; /* We expect a ResetAck at all */ + int dlen; /* Databytes stored in data */ + struct timer_list timer; /* For timeouts/retries */ + /* This is a hack but seems sufficient for the moment. We do not want + to have this be yet another allocation for some bytes, it is more + memory management overhead than the whole mess is worth. */ + unsigned char data[IPPP_RESET_MAXDATABYTES]; +}; + +/* The data structure keeping track of the currently outstanding CCP Reset + transactions. */ +struct ippp_ccp_reset { + struct ippp_ccp_reset_state *rs[256]; /* One per possible id */ + unsigned char lastid; /* Last id allocated by the engine */ +}; + +struct ippp_struct { + struct ippp_struct *next_link; + int state; + struct ippp_buf_queue rq[NUM_RCV_BUFFS]; /* packet queue for isdn_ppp_read() */ + struct ippp_buf_queue *first; /* pointer to (current) first packet */ + struct ippp_buf_queue *last; /* pointer to (current) last used packet in queue */ +#ifdef COMPAT_HAS_NEW_WAITQ + wait_queue_head_t wq; +#else + struct wait_queue *wq; +#endif + struct task_struct *tk; + unsigned int mpppcfg; + unsigned int pppcfg; + unsigned int mru; + unsigned int mpmru; + unsigned int mpmtu; + unsigned int maxcid; + struct isdn_net_local_s *lp; + int unit; + int minor; + long last_link_seqno; + long mp_seqno; + long range; +#ifdef CONFIG_ISDN_PPP_VJ + unsigned char *cbuf; + struct slcompress *slcomp; +#endif + unsigned long debug; + struct isdn_ppp_compressor *compressor,*decompressor; + struct isdn_ppp_compressor *link_compressor,*link_decompressor; + void *decomp_stat,*comp_stat,*link_decomp_stat,*link_comp_stat; + struct ippp_ccp_reset *reset; /* Allocated on demand, may never be needed */ + unsigned long compflags; +}; + +#endif /* __KERNEL__ */ +#endif /* _LINUX_ISDN_PPP_H */ |