220 lines
6.3 KiB
C
220 lines
6.3 KiB
C
/*-
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*
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* ===================================
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* HARP | Host ATM Research Platform
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* ===================================
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*
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*
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* This Host ATM Research Platform ("HARP") file (the "Software") is
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* made available by Network Computing Services, Inc. ("NetworkCS")
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* "AS IS". NetworkCS does not provide maintenance, improvements or
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* support of any kind.
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*
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* NETWORKCS MAKES NO WARRANTIES OR REPRESENTATIONS, EXPRESS OR IMPLIED,
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* INCLUDING, BUT NOT LIMITED TO, IMPLIED WARRANTIES OF MERCHANTABILITY
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* AND FITNESS FOR A PARTICULAR PURPOSE, AS TO ANY ELEMENT OF THE
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* SOFTWARE OR ANY SUPPORT PROVIDED IN CONNECTION WITH THIS SOFTWARE.
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* In no event shall NetworkCS be responsible for any damages, including
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* but not limited to consequential damages, arising from or relating to
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* any use of the Software or related support.
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*
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* Copyright 1994-1998 Network Computing Services, Inc.
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*
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* Copies of this Software may be made, however, the above copyright
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* notice must be reproduced on all copies.
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*
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* @(#) $FreeBSD$
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*
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*/
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/*
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* IP Over ATM Support
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* -------------------
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*
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* Protocol control blocks
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*
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*/
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#ifndef _IPATM_IPATM_VAR_H
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#define _IPATM_IPATM_VAR_H
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#ifdef _KERNEL
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/*
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* Structure containing information for each VCC, both SVC and PVC, which
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* supports IP traffic.
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*/
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struct ipvcc {
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Qelem_t iv_elem; /* ip_nif queueing links */
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u_short iv_flags; /* VCC flags (see below) */
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u_char iv_state; /* VCC state (see below) */
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Atm_connection *iv_conn; /* Connection manager token */
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struct in_addr iv_dst; /* Peer's IP address */
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struct ip_nif *iv_ipnif; /* IP network interface */
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struct atm_time iv_time; /* Timer controls */
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short iv_idle; /* VCC idle timer */
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u_char iv_parmx; /* Index into provider's vcc params */
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KBuffer *iv_queue; /* Packet waiting for VCC */
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struct arpmap *iv_arpent; /* ARP entry for VCC */
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struct ipvcc *iv_arpnext; /* ARP link field */
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Atm_connection *iv_arpconn; /* ARP connection manager token */
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};
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#define iv_forw iv_elem.q_forw
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#define iv_back iv_elem.q_back
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#endif /* _KERNEL */
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/*
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* VCC Flags
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*/
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#define IVF_PVC 0x0001 /* PVC */
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#define IVF_SVC 0x0002 /* SVC */
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#define IVF_LLC 0x0004 /* VCC uses LLC/SNAP encapsulation */
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#define IVF_MAPOK 0x0008 /* VCC ARP mapping is valid */
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#define IVF_NOIDLE 0x0010 /* Do not idle-timeout this VCC */
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/*
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* VCC States
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*/
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#define IPVCC_FREE 0 /* No VCC associated with entry */
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#define IPVCC_PMAP 1 /* SVC waiting for ARP mapping */
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#define IPVCC_POPEN 2 /* Pending SVC open completion */
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#define IPVCC_PACCEPT 3 /* Pending SVC accept completion */
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#define IPVCC_ACTPENT 4 /* PVC open - waiting for ARP entry */
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#define IPVCC_ACTIVE 5 /* VCC open - available */
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#define IPVCC_CLOSED 6 /* VCC has been closed */
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#ifdef _KERNEL
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/*
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* Structure containing IP-specific information for each ATM network
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* interface in the system.
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*/
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struct ip_nif {
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struct ip_nif *inf_next; /* Next on interface chain */
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struct atm_nif *inf_nif; /* ATM network interface */
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u_short inf_state; /* Interface state (see below) */
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struct in_ifaddr *inf_addr; /* Interface's IP address */
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Queue_t inf_vcq; /* VCC connections queue */
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struct ip_serv *inf_serv; /* Interface service provider */
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/* For use by IP interface service provider (ie signalling manager) */
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caddr_t inf_isintf; /* Interface control block */
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/* IP/ATM provided interface services */
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void (*inf_arpnotify)/* ARP event notification */
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(struct ipvcc *, int);
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int (*inf_ipinput) /* IP packet input */
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(struct ip_nif *, KBuffer *);
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int (*inf_createsvc)/* Create an IP SVC */
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(struct ifnet *, u_short, caddr_t,
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struct ipvcc **);
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};
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/*
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* Network Interface States
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*/
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#define IPNIF_ADDR 1 /* Waiting for i/f address */
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#define IPNIF_SIGMGR 2 /* Waiting for sigmgr attach */
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#define IPNIF_ACTIVE 3 /* Active */
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/*
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* Global IP/ATM Statistics
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*/
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struct ipatm_stat {
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u_long ias_rcvstate; /* Packets received, bad vcc state */
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u_long ias_rcvnobuf; /* Packets received, no buf avail */
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};
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/*
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* Structure to pass parameters for ipatm_openpvc()
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*/
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struct ipatmpvc {
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struct ip_nif *ipp_ipnif; /* PVC's IP network interface */
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u_short ipp_vpi; /* VPI value */
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u_short ipp_vci; /* VCI value */
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Aal_t ipp_aal; /* AAL type */
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Encaps_t ipp_encaps; /* VCC encapsulation */
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struct sockaddr_in ipp_dst; /* Destination's IP address */
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uint8_t ipp_traffic_type; /* CBR, UBR, ... */
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struct t_atm_traffic ipp_traffic; /* traffic parameters */
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};
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/*
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* Timer macros
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*/
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#define IPVCC_TIMER(s, t) atm_timeout(&(s)->iv_time, (t), ipatm_timeout)
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#define IPVCC_CANCEL(s) atm_untimeout(&(s)->iv_time)
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/*
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* Misc useful macros
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*/
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#define SATOSIN(sa) ((struct sockaddr_in *)(sa))
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/*
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* Global function declarations
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*/
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/* ipatm_event.c */
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void ipatm_timeout(struct atm_time *);
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void ipatm_connected(void *);
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void ipatm_cleared(void *, struct t_atm_cause *);
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void ipatm_arpnotify(struct ipvcc *, int);
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void ipatm_itimeout(struct atm_time *);
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/* ipatm_if.c */
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int ipatm_nifstat(int, struct atm_nif *, intptr_t);
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/* ipatm_input.c */
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void ipatm_cpcs_data(void *, KBuffer *);
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int ipatm_ipinput(struct ip_nif *, KBuffer *);
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/* ipatm_load.c */
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/* ipatm_output.c */
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int ipatm_ifoutput(struct ifnet *, KBuffer *, struct sockaddr *);
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/* ipatm_usrreq.c */
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int ipatm_ioctl(int, caddr_t, caddr_t);
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caddr_t ipatm_getname(void *);
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/* ipatm_vcm.c */
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int ipatm_openpvc(struct ipatmpvc *, struct ipvcc **);
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int ipatm_createsvc(struct ifnet *, u_short, caddr_t,
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struct ipvcc **);
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int ipatm_opensvc(struct ipvcc *);
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int ipatm_retrysvc(struct ipvcc *);
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void ipatm_activate(struct ipvcc *);
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int ipatm_incoming(void *, Atm_connection *, Atm_attributes *,
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void **);
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int ipatm_closevc(struct ipvcc *, int);
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int ipatm_chknif(struct in_addr, struct ip_nif *);
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struct ipvcc *ipatm_iptovc(struct sockaddr_in *, struct atm_nif *);
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/*
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* External variables
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*/
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extern int ipatm_vccnt;
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extern int ipatm_vcidle;
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extern int ipatm_print;
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extern u_long last_map_ipdst;
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extern struct ipvcc *last_map_ipvcc;
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extern struct ip_nif *ipatm_nif_head;
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extern uma_zone_t ipatm_vc_zone;
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extern struct ipatm_stat ipatm_stat;
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extern struct atm_time ipatm_itimer;
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extern Atm_endpoint ipatm_endpt;
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extern Atm_attributes ipatm_aal5llc;
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extern Atm_attributes ipatm_aal5null;
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extern Atm_attributes ipatm_aal4null;
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#ifdef SYSCTL_DECL
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SYSCTL_DECL(_net_harp_ip);
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#endif
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#endif /* _KERNEL */
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#endif /* _IPATM_IPATM_VAR_H */
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