1
2
3
4
5
6
7
8
9
10
11
12
13
14
15
16
17
18
19
20
21
22
23
24
25
26
27
28
29
30
31
32
33
34
35
36
37
38
39
40
41
42
43
44
45
46
47
48
49
50
51
52
53
54
55
56
57
58
59
60
61
62
63
64
65
66
67
68
69
70
71
72
73
74
75
76
77
78
79
80
81
82
83
84
85
86
87
88
89
90
91
92
93
94
95
96
97
98
99
100
101
102
103
104
105
106
107
108
109
110
111
112
113
114
115
116
117
118
119
120
121
122
123
124
125
126
127
128
129
130
131
132
133
134
135
136
137
138
139
140
141
142
143
144
145
146
147
148
149
150
151
152
153
154
155
156
157
158
159
160
161
162
163
164
165
166
167
168
169
170
171
172
173
174
175
176
177
178
179
180
181
182
183
184
185
186
187
188
189
190
191
192
193
194
195
196
197
198
199
200
201
202
203
204
205
206
207
208
209
210
211
212
213
214
215
|
/*
*
* ===================================
* 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 ATM_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 /* ATM_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 ATM_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 */
__P((struct ipvcc *, int));
int (*inf_ipinput) /* IP packet input */
__P((struct ip_nif *, KBuffer *));
int (*inf_createsvc)/* Create an IP SVC */
__P((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 */
};
/*
* 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 __P((struct atm_time *));
void ipatm_connected __P((void *));
void ipatm_cleared __P((void *, struct t_atm_cause *));
void ipatm_arpnotify __P((struct ipvcc *, int));
void ipatm_itimeout __P((struct atm_time *));
/* ipatm_if.c */
int ipatm_nifstat __P((int, struct atm_nif *, int));
/* ipatm_input.c */
void ipatm_cpcs_data __P((void *, KBuffer *));
int ipatm_ipinput __P((struct ip_nif *, KBuffer *));
/* ipatm_load.c */
/* ipatm_output.c */
int ipatm_ifoutput __P((struct ifnet *, KBuffer *,
struct sockaddr *));
/* ipatm_usrreq.c */
int ipatm_ioctl __P((int, caddr_t, caddr_t));
caddr_t ipatm_getname __P((void *));
/* ipatm_vcm.c */
int ipatm_openpvc __P((struct ipatmpvc *, struct ipvcc **));
int ipatm_createsvc __P((struct ifnet *, u_short, caddr_t,
struct ipvcc **));
int ipatm_opensvc __P((struct ipvcc *));
int ipatm_retrysvc __P((struct ipvcc *));
void ipatm_activate __P((struct ipvcc *));
int ipatm_incoming __P((void *, Atm_connection *, Atm_attributes *,
void **));
int ipatm_closevc __P((struct ipvcc *, int));
int ipatm_chknif __P((struct in_addr, struct ip_nif *));
struct ipvcc *ipatm_iptovc __P((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 struct sp_info ipatm_vcpool;
extern struct sp_info ipatm_nifpool;
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;
#endif /* ATM_KERNEL */
#endif /* _IPATM_IPATM_VAR_H */
|
