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