1/*
2 * Copyright (c) 2000 Apple Computer, Inc. All rights reserved.
3 *
4 * @APPLE_OSREFERENCE_LICENSE_HEADER_START@
5 *
6 * This file contains Original Code and/or Modifications of Original Code
7 * as defined in and that are subject to the Apple Public Source License
8 * Version 2.0 (the 'License'). You may not use this file except in
9 * compliance with the License. The rights granted to you under the License
10 * may not be used to create, or enable the creation or redistribution of,
11 * unlawful or unlicensed copies of an Apple operating system, or to
12 * circumvent, violate, or enable the circumvention or violation of, any
13 * terms of an Apple operating system software license agreement.
14 *
15 * Please obtain a copy of the License at
16 * http://www.opensource.apple.com/apsl/ and read it before using this file.
17 *
18 * The Original Code and all software distributed under the License are
19 * distributed on an 'AS IS' basis, WITHOUT WARRANTY OF ANY KIND, EITHER
20 * EXPRESS OR IMPLIED, AND APPLE HEREBY DISCLAIMS ALL SUCH WARRANTIES,
21 * INCLUDING WITHOUT LIMITATION, ANY WARRANTIES OF MERCHANTABILITY,
22 * FITNESS FOR A PARTICULAR PURPOSE, QUIET ENJOYMENT OR NON-INFRINGEMENT.
23 * Please see the License for the specific language governing rights and
24 * limitations under the License.
25 *
26 * @APPLE_OSREFERENCE_LICENSE_HEADER_END@
27 */
28/*
29 *	Copyright (c) 1996 Apple Computer, Inc.
30 *
31 *		Created April 8, 1996 by Tuyen Nguyen
32 *   Modified, March 17, 1997 by Tuyen Nguyen for MacOSX.
33 *
34 *	File: misc.c
35 */
36
37#ifdef AURP_SUPPORT
38
39#include <sys/errno.h>
40#include <sys/types.h>
41#include <sys/param.h>
42#include <machine/spl.h>
43#include <sys/systm.h>
44#include <sys/kernel.h>
45#include <sys/proc.h>
46#include <sys/filedesc.h>
47#include <sys/fcntl.h>
48#include <sys/mbuf.h>
49#include <sys/socket.h>
50#include <sys/socketvar.h>
51#include <net/if.h>
52
53#include <netat/sysglue.h>
54#include <netat/appletalk.h>
55#include <netat/at_pcb.h>
56#include <netat/at_var.h>
57#include <netat/rtmp.h>
58#include <netat/routing_tables.h>
59#include <netat/aurp.h>
60#include <netat/debug.h>
61
62/* */
63void AURPiocack(gref, m)
64	gref_t *gref;
65	gbuf_t *m;
66{
67	/* send ok reply to ioctl command */
68	gbuf_set_type(m, MSG_IOCACK);
69	atalk_putnext(gref, m);
70}
71
72void AURPiocnak(gref, m, error)
73	gref_t *gref;
74	gbuf_t *m;
75	int error;
76{
77	ioc_t *iocbp = (ioc_t *)gbuf_rptr(m);
78
79	/* send error reply to ioctl command */
80	if (gbuf_cont(m)) {
81        gbuf_freem(gbuf_cont(m));
82        gbuf_cont(m) = 0;
83	}
84	iocbp->ioc_error = error;
85	iocbp->ioc_count = 0;
86	iocbp->ioc_rval = -1;
87	gbuf_set_type(m, MSG_IOCNAK);
88	atalk_putnext(gref, m);
89}
90
91/* */
92void AURPupdate(arg)
93	void *arg;
94{
95	unsigned char node;
96        aurp_state_t *state;
97
98	atalk_lock();
99
100        state = (aurp_state_t *)&aurp_state[1];
101
102	if (aurp_gref == 0) {
103		atalk_unlock();
104		return;
105        }
106	/*
107	 * for every tunnel peer, do the following periodically:
108	 * 1. send zone requests to determine zone names of networks
109	 *    that still do not have asssociated zone names.
110	 * 2. send any RI update that are pending
111	 */
112	for (node=1; node <= dst_addr_cnt; node++, state++) {
113		AURPsndZReq(state);
114		AURPsndRIUpd(state);
115	}
116
117	/* restart the periodic update timer */
118	timeout(AURPupdate, arg, AURP_UpdateRate*10*HZ);
119	update_tmo = 1;
120
121	atalk_unlock();
122}
123
124/* */
125void AURPfreemsg(m)
126	gbuf_t *m;
127{
128	gbuf_t *tmp_m;
129
130	while ((tmp_m = m) != 0) {
131		m = gbuf_next(m);
132		gbuf_next(tmp_m) = 0;
133		gbuf_freem(tmp_m);
134	}
135}
136
137/* */
138int AURPinit()
139{
140	unsigned char node;
141	aurp_state_t *state = (aurp_state_t *)&aurp_state[1];
142	short entry_num;
143	RT_entry *entry = (RT_entry *)RT_table;
144
145	/* start the periodic update timer */
146	timeout(AURPupdate, 0, AURP_UpdateRate*10*HZ);
147	update_tmo = 1;
148
149	/* initialize AURP flags for entries in the RT table */
150	for (entry_num=0; entry_num < RT_maxentry; entry_num++,entry++)
151		entry->AURPFlag = 0;
152
153	/* initiate connections to peers */
154	for (node=1; node <= dst_addr_cnt; node++, state++) {
155		bzero((char *)state, sizeof(*state));
156		state->rem_node = node;
157		state->snd_state = AURPSTATE_Unconnected;
158		state->rcv_state = AURPSTATE_Unconnected;
159		dPrintf(D_M_AURP, D_L_STARTUP_INFO,
160			("AURPinit: sending OpenReq to node %u\n", node));
161		AURPsndOpenReq(state);
162	}
163
164	return 0;
165}
166
167/* */
168void AURPcleanup(state)
169	aurp_state_t *state;
170{
171	if (state->rsp_m) {
172		gbuf_freem(state->rsp_m);
173		state->rsp_m = 0;
174	}
175
176	if (state->upd_m) {
177		gbuf_freem(state->upd_m);
178		state->upd_m = 0;
179	}
180}
181
182/*
183 *
184 */
185void AURPshutdown()
186{
187	unsigned char node;
188	aurp_state_t *state = (aurp_state_t *)&aurp_state[1];
189
190	/* cancel the periodic update timer */
191	untimeout(AURPupdate, 0);
192	update_tmo = 0;
193
194	/* notify tunnel peers of router going-down */
195	for (node=1; node <= dst_addr_cnt; node++, state++) {
196		AURPcleanup(state);
197		AURPsndRDReq(state);
198	}
199
200	/* bring down the router */
201	aurp_wakeup(NULL, (caddr_t) AE_SHUTDOWN, 0);
202}
203
204void AURPaccess()
205{
206	unsigned char i;
207	short entry_num;
208	RT_entry *entry;
209
210		entry = (RT_entry *)RT_table;
211		for (entry_num=0; entry_num < RT_maxentry; entry_num++,entry++)
212			entry->AURPFlag = net_export ? AURP_NetHiden : 0;
213
214	for (i=0; i < net_access_cnt; i++) {
215		/* export or hide networks as configured */
216		if ((entry = rt_blookup(net_access[i])) != 0)
217			entry->AURPFlag = net_export ? 0 : AURP_NetHiden;
218	}
219}
220
221#endif  /* AURP_SUPPORT */
222