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
|
/*-
* Copyright (c) 2001 Cubical Solutions Ltd. All rights reserved.
*
* Redistribution and use in source and binary forms, with or without
* modification, are permitted provided that the following conditions
* are met:
* 1. Redistributions of source code must retain the above copyright
* notice, this list of conditions and the following disclaimer.
* 2. Redistributions in binary form must reproduce the above copyright
* notice, this list of conditions and the following disclaimer in the
* documentation and/or other materials provided with the distribution.
*
* THIS SOFTWARE IS PROVIDED BY THE AUTHOR AND CONTRIBUTORS ``AS IS'' AND
* ANY EXPRESS OR IMPLIED WARRANTIES, INCLUDING, BUT NOT LIMITED TO, THE
* IMPLIED WARRANTIES OF MERCHANTABILITY AND FITNESS FOR A PARTICULAR PURPOSE
* ARE DISCLAIMED. IN NO EVENT SHALL THE AUTHOR OR CONTRIBUTORS BE LIABLE
* FOR ANY DIRECT, INDIRECT, INCIDENTAL, SPECIAL, EXEMPLARY, OR CONSEQUENTIAL
* DAMAGES (INCLUDING, BUT NOT LIMITED TO, PROCUREMENT OF SUBSTITUTE GOODS
* OR SERVICES; LOSS OF USE, DATA, OR PROFITS; OR BUSINESS INTERRUPTION)
* HOWEVER CAUSED AND ON ANY THEORY OF LIABILITY, WHETHER IN CONTRACT, STRICT
* LIABILITY, OR TORT (INCLUDING NEGLIGENCE OR OTHERWISE) ARISING IN ANY WAY
* OUT OF THE USE OF THIS SOFTWARE, EVEN IF ADVISED OF THE POSSIBILITY OF
* SUCH DAMAGE.
*/
/* capi/capi_llif.c The i4b CAPI link layer interface.
*/
#include <sys/cdefs.h>
__FBSDID("$FreeBSD$");
#include <sys/param.h>
#include <sys/kernel.h>
#include <sys/systm.h>
#include <sys/mbuf.h>
#include <sys/socket.h>
#include <net/if.h>
#include <i4b/include/i4b_debug.h>
#include <i4b/include/i4b_ioctl.h>
#include <i4b/include/i4b_cause.h>
#include <i4b/include/i4b_l3l4.h>
#include <i4b/include/i4b_mbuf.h>
#include <i4b/include/i4b_global.h>
#include <i4b/layer4/i4b_l4.h>
#include <i4b/capi/capi.h>
#include <i4b/capi/capi_msgs.h>
/*
// capi_ll_control
// CAPI link layer control routine. Called by a link layer
// driver when its state changes.
*/
int
capi_ll_control(capi_softc_t *sc, int op, int arg)
{
switch (op) {
case CAPI_CTRL_READY:
if (arg) {
sc->sc_state = C_READY;
/*
* Register our CAPI ApplId and send CAPI_LISTEN_REQ
* with CIP Mask value 1 (match all).
*/
sc->reg_appl(sc, I4BCAPI_APPLID, sc->sc_nbch);
capi_listen_req(sc, 0x10007);
} else {
sc->sc_state = C_DOWN;
/* XXX go through cds and notify L4 of pdeact? XXX */
}
break;
case CAPI_CTRL_PROFILE:
bcopy((char*) arg, &sc->sc_profile, sizeof(sc->sc_profile));
break;
case CAPI_CTRL_NEW_NCCI:
case CAPI_CTRL_FREE_NCCI:
/* We ignore the controller's NCCI notifications. */
break;
default:
printf("capi%d: unknown control %d\n", sc->sc_unit, op);
}
return 0;
}
/*
// i4b_capi_handlers
// Array of message-handler pairs used to dispatch CAPI
// messages sent to I4BCAPI_APPLID.
*/
static struct capi_cmdtab {
u_int16_t cmd;
void (*handler)(capi_softc_t *, struct mbuf *);
} i4b_capi_handlers[] = {
{ CAPI_LISTEN_CONF, capi_listen_conf },
{ CAPI_INFO_IND, capi_info_ind },
{ CAPI_ALERT_CONF, capi_alert_conf },
{ CAPI_CONNECT_CONF, capi_connect_conf },
{ CAPI_CONNECT_IND, capi_connect_ind },
{ CAPI_CONNECT_ACTIVE_IND, capi_connect_active_ind },
{ CAPI_CONNECT_B3_CONF, capi_connect_b3_conf },
{ CAPI_CONNECT_B3_IND, capi_connect_b3_ind },
{ CAPI_CONNECT_B3_ACTIVE_IND, capi_connect_b3_active_ind },
{ CAPI_DATA_B3_CONF, capi_data_b3_conf },
{ CAPI_DATA_B3_IND, capi_data_b3_ind },
{ CAPI_DISCONNECT_B3_IND, capi_disconnect_b3_ind },
{ CAPI_DISCONNECT_CONF, capi_disconnect_conf },
{ CAPI_DISCONNECT_IND, capi_disconnect_ind },
{ 0, 0 }
};
/*
// capi_ll_receive
// CAPI link layer receive upcall. Called by a link layer
// driver to dispatch incoming CAPI messages.
*/
int
capi_ll_receive(capi_softc_t *sc, struct mbuf *m)
{
u_int8_t *p = mtod(m, u_int8_t*);
u_int16_t len, applid, msgid, cmd;
capimsg_getu16(p + 0, &len);
capimsg_getu16(p + 2, &applid);
capimsg_getu16(p + 4, &cmd);
capimsg_getu16(p + 6, &msgid);
#if 0
printf("capi%d: ll_receive hdr %04x %04x %04x %04x\n", sc->sc_unit,
len, applid, cmd, msgid);
#endif
if (applid == I4BCAPI_APPLID) {
struct capi_cmdtab *e;
for (e = i4b_capi_handlers; e->cmd && e->cmd != cmd; e++);
if (e->cmd) (*e->handler)(sc, m);
else printf("capi%d: unknown message %04x\n", sc->sc_unit, cmd);
} else {
/* XXX we could handle arbitrary ApplIds here XXX */
printf("capi%d: message %04x for unknown applid %d\n", sc->sc_unit,
cmd, applid);
}
if (m->m_next) {
i4b_Bfreembuf(m->m_next);
m->m_next = NULL;
}
i4b_Dfreembuf(m);
return(0);
}
|
