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
216
217
218
219
220
221
222
223
224
225
226
227
228
229
230
231
232
233
234
235
236
237
238
239
240
241
242
243
244
245
246
247
248
249
250
251
252
253
254
255
256
257
258
259
260
261
262
263
264
265
266
267
268
269
270
271
272
273
274
275
276
277
278
279
280
281
282
283
284
285
286
287
288
289
290
291
292
293
294
295
296
297
298
299
300
301
302
303
304
305
306
307
308
309
310
311
312
313
314
315
316
317
318
319
320
321
322
323
324
325
326
327
328
329
330
331
332
333
334
335
336
337
338
339
340
341
342
343
344
345
346
347
348
349
350
351
352
353
354
355
356
357
358
359
360
361
362
363
364
365
366
367
368
369
370
371
372
373
374
375
376
377
378
379
380
381
382
383
384
385
386
387
388
389
390
391
392
393
394
395
396
397
398
399
400
401
402
403
404
405
406
407
408
409
410
411
412
413
414
415
416
417
418
419
420
421
422
423
424
425
426
427
428
429
430
431
432
433
434
435
436
437
438
439
440
441
442
443
444
445
446
447
448
449
450
451
452
453
454
455
456
457
458
459
460
461
462
463
464
465
466
467
468
469
470
471
472
473
474
475
476
477
478
479
480
481
482
483
484
485
486
|
/*
* Copyright (c) 2001-2003
* Fraunhofer Institute for Open Communication Systems (FhG Fokus).
* 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.
*
* Author: Hartmut Brandt <harti@freebsd.org>
*
* $FreeBSD$
*
* ForeHE driver.
*
* Ioctl handler.
*/
#include "opt_inet.h"
#include "opt_natm.h"
#include <sys/types.h>
#include <sys/param.h>
#include <sys/systm.h>
#include <sys/malloc.h>
#include <sys/kernel.h>
#include <sys/bus.h>
#include <sys/errno.h>
#include <sys/conf.h>
#include <sys/module.h>
#include <sys/queue.h>
#include <sys/syslog.h>
#include <sys/condvar.h>
#include <sys/sysctl.h>
#include <vm/uma.h>
#include <sys/sockio.h>
#include <sys/mbuf.h>
#include <sys/socket.h>
#include <net/if.h>
#include <net/if_media.h>
#include <net/if_atm.h>
#include <net/route.h>
#include <netinet/in.h>
#include <netinet/if_atm.h>
#include <machine/bus.h>
#include <machine/resource.h>
#include <sys/bus.h>
#include <sys/rman.h>
#include <pci/pcireg.h>
#include <pci/pcivar.h>
#include <dev/utopia/utopia.h>
#include <dev/hatm/if_hatmconf.h>
#include <dev/hatm/if_hatmreg.h>
#include <dev/hatm/if_hatmvar.h>
static u_int hatm_natm_traffic = ATMIO_TRAFFIC_UBR;
static u_int hatm_natm_pcr = 0;
static int hatm_sysctl_natm_traffic(SYSCTL_HANDLER_ARGS);
SYSCTL_DECL(_hw_atm);
SYSCTL_PROC(_hw_atm, OID_AUTO, natm_traffic, CTLTYPE_UINT | CTLFLAG_RW,
&hatm_natm_traffic, sizeof(hatm_natm_traffic), hatm_sysctl_natm_traffic,
"IU", "traffic type for NATM connections");
SYSCTL_UINT(_hw_atm, OID_AUTO, natm_pcr, CTLFLAG_RW,
&hatm_natm_pcr, 0, "PCR for NATM connections");
/*
* Return a table of VCCs in a freshly allocated memory area.
* Here we have a problem: we first count, how many vccs we need
* to return. The we allocate the memory and finally fill it in.
* Because we cannot lock while calling malloc, the number of active
* vccs may change while we're in malloc. So we allocate a couple of
* vccs more and if space anyway is not enough re-iterate.
*/
static struct atmio_vcctable *
hatm_getvccs(struct hatm_softc *sc)
{
u_int cid, alloc;
size_t len;
struct atmio_vcctable *vccs;
struct atmio_vcc *v;
alloc = sc->open_vccs + 10;
vccs = NULL;
again:
len = sizeof(*vccs) + alloc * sizeof(vccs->vccs[0]);
vccs = reallocf(vccs, len, M_DEVBUF, M_WAITOK);
bzero(vccs, len);
/*
* Fill in
*/
vccs->count = 0;
v = vccs->vccs;
mtx_lock(&sc->mtx);
for (cid = 0; cid < HE_MAX_VCCS; cid++)
if (sc->vccs[cid] != NULL &&
(sc->vccs[cid]->vflags & (HE_VCC_RX_OPEN |
HE_VCC_TX_OPEN))) {
if (++vccs->count == alloc) {
/*
* too many - try again
*/
break;
}
*v++ = sc->vccs[cid]->param;
}
mtx_unlock(&sc->mtx);
if (cid == HE_MAX_VCCS)
return (vccs);
alloc *= 2;
goto again;
}
/*
* Try to open the given VCC.
*/
static int
hatm_open_vcc(struct hatm_softc *sc, struct atmio_openvcc *arg)
{
u_int cid;
struct hevcc *vcc;
int error = 0;
DBG(sc, VCC, ("Open VCC: %u.%u flags=%#x", arg->param.vpi,
arg->param.vci, arg->param.flags));
if ((arg->param.vpi & ~HE_VPI_MASK) ||
(arg->param.vci & ~HE_VCI_MASK) ||
(arg->param.vci == 0))
return (EINVAL);
cid = HE_CID(arg->param.vpi, arg->param.vci);
if ((arg->param.flags & ATMIO_FLAG_NOTX) &&
(arg->param.flags & ATMIO_FLAG_NORX))
return (EINVAL);
vcc = uma_zalloc(sc->vcc_zone, M_NOWAIT | M_ZERO);
if (vcc == NULL)
return (ENOMEM);
mtx_lock(&sc->mtx);
if (!(sc->ifatm.ifnet.if_flags & IFF_RUNNING)) {
error = EIO;
goto done;
}
if (sc->vccs[cid] != NULL) {
error = EBUSY;
goto done;
}
vcc->param = arg->param;
vcc->rxhand = arg->rxhand;
switch (vcc->param.aal) {
case ATMIO_AAL_0:
case ATMIO_AAL_5:
case ATMIO_AAL_RAW:
break;
default:
error = EINVAL;
goto done;
}
switch (vcc->param.traffic) {
case ATMIO_TRAFFIC_UBR:
case ATMIO_TRAFFIC_CBR:
case ATMIO_TRAFFIC_ABR:
break;
default:
error = EINVAL;
goto done;
}
vcc->ntpds = 0;
vcc->chain = vcc->last = NULL;
vcc->ibytes = vcc->ipackets = 0;
vcc->obytes = vcc->opackets = 0;
if (!(vcc->param.flags & ATMIO_FLAG_NOTX) &&
(error = hatm_tx_vcc_can_open(sc, cid, vcc)) != 0)
goto done;
/* ok - go ahead */
sc->vccs[cid] = vcc;
if (!(vcc->param.flags & ATMIO_FLAG_NOTX))
hatm_tx_vcc_open(sc, cid);
if (!(vcc->param.flags & ATMIO_FLAG_NORX))
hatm_rx_vcc_open(sc, cid);
#ifdef notyet
/* inform management about non-NG and NG-PVCs */
if (!(vcc->param.flags & ATMIO_FLAG_NG) ||
(vcc->param.flags & ATMIO_FLAG_PVC))
atm_message(&sc->ifatm.ifnet, ATM_MSG_VCC_CHANGED,
(1 << 24) | (arg->vpi << 16) | arg->vci);
#endif
/* don't free below */
vcc = NULL;
sc->open_vccs++;
done:
mtx_unlock(&sc->mtx);
if (vcc != NULL)
uma_zfree(sc->vcc_zone, vcc);
return (error);
}
/*
* Enable ioctl for NATM. Map to an open ioctl.
*/
static int
hatm_open_vcc1(struct hatm_softc *sc, struct atm_pseudoioctl *ph)
{
struct atmio_openvcc *v;
int error;
if ((v = malloc(sizeof(*v), M_TEMP, M_NOWAIT | M_ZERO)) == NULL)
return (ENOMEM);
v->param.flags = ATM_PH_FLAGS(&ph->aph) &
(ATM_PH_AAL5 | ATM_PH_LLCSNAP);
v->param.vpi = ATM_PH_VPI(&ph->aph);
v->param.vci = ATM_PH_VCI(&ph->aph);
v->param.aal = (ATM_PH_FLAGS(&ph->aph) & ATM_PH_AAL5)
? ATMIO_AAL_5 : ATMIO_AAL_0;
v->param.traffic = hatm_natm_traffic;
v->rxhand = ph->rxhand;
if ((v->param.tparam.pcr = hatm_natm_pcr) == 0 ||
hatm_natm_pcr > sc->ifatm.mib.pcr)
v->param.tparam.pcr = sc->ifatm.mib.pcr;
v->param.tparam.mcr = 0;
error = hatm_open_vcc(sc, v);
if (error == 0)
sc->vccs[HE_CID(v->param.vpi, v->param.vci)]->vflags |=
HE_VCC_ASYNC;
free(v, M_TEMP);
return (error);
}
/*
* VCC has been finally closed.
*/
void
hatm_vcc_closed(struct hatm_softc *sc, u_int cid)
{
struct hevcc *vcc = sc->vccs[cid];
#ifdef notyet
/* inform management about non-NG and NG-PVCs */
if (!(vcc->param.flags & ATMIO_FLAG_NG) ||
(vcc->param.flags & ATMIO_FLAG_PVC))
atm_message(&sc->ifatm.ifnet, ATM_MSG_VCC_CHANGED,
(0 << 24) | (HE_VPI(cid) << 16) | HE_VCI(cid));
#endif
sc->open_vccs--;
uma_zfree(sc->vcc_zone, vcc);
sc->vccs[cid] = NULL;
}
/*
* Try to close the given VCC
*/
static int
hatm_close_vcc(struct hatm_softc *sc, struct atmio_closevcc *arg)
{
u_int cid;
struct hevcc *vcc;
int error = 0;
DBG(sc, VCC, ("Close VCC: %u.%u", arg->vpi, arg->vci));
if((arg->vpi & ~HE_VPI_MASK) ||
(arg->vci & ~HE_VCI_MASK) ||
(arg->vci == 0))
return (EINVAL);
cid = HE_CID(arg->vpi, arg->vci);
mtx_lock(&sc->mtx);
vcc = sc->vccs[cid];
if (!(sc->ifatm.ifnet.if_flags & IFF_RUNNING)) {
error = EIO;
goto done;
}
if (vcc == NULL || !(vcc->vflags & HE_VCC_OPEN)) {
error = ENOENT;
goto done;
}
if (vcc->vflags & HE_VCC_TX_OPEN)
hatm_tx_vcc_close(sc, cid);
if (vcc->vflags & HE_VCC_RX_OPEN)
hatm_rx_vcc_close(sc, cid);
if (vcc->vflags & HE_VCC_ASYNC)
goto done;
while ((sc->ifatm.ifnet.if_flags & IFF_RUNNING) &&
(vcc->vflags & (HE_VCC_TX_CLOSING | HE_VCC_RX_CLOSING)))
cv_wait(&sc->vcc_cv, &sc->mtx);
if (!(sc->ifatm.ifnet.if_flags & IFF_RUNNING)) {
error = EIO;
goto done;
}
if (!(vcc->vflags & ATMIO_FLAG_NOTX))
hatm_tx_vcc_closed(sc, cid);
hatm_vcc_closed(sc, cid);
done:
mtx_unlock(&sc->mtx);
return (error);
}
static int
hatm_close_vcc1(struct hatm_softc *sc, struct atm_pseudoioctl *ph)
{
struct atmio_closevcc v;
v.vpi = ATM_PH_VPI(&ph->aph);
v.vci = ATM_PH_VCI(&ph->aph);
return (hatm_close_vcc(sc, &v));
}
/*
* IOCTL handler
*/
int
hatm_ioctl(struct ifnet *ifp, u_long cmd, caddr_t data)
{
struct ifreq *ifr = (struct ifreq *)data;
struct ifaddr *ifa = (struct ifaddr *)data;
struct hatm_softc *sc = (struct hatm_softc *)ifp->if_softc;
struct atmio_vcctable *vtab;
int error = 0;
switch (cmd) {
case SIOCSIFADDR:
mtx_lock(&sc->mtx);
ifp->if_flags |= IFF_UP;
if (!(ifp->if_flags & IFF_RUNNING))
hatm_initialize(sc);
switch (ifa->ifa_addr->sa_family) {
#ifdef INET
case AF_INET:
case AF_INET6:
ifa->ifa_rtrequest = atm_rtrequest;
break;
#endif
default:
break;
}
mtx_unlock(&sc->mtx);
break;
case SIOCSIFFLAGS:
mtx_lock(&sc->mtx);
if (ifp->if_flags & IFF_UP) {
if (!(ifp->if_flags & IFF_RUNNING)) {
hatm_initialize(sc);
}
} else {
if (ifp->if_flags & IFF_RUNNING) {
hatm_stop(sc);
}
}
mtx_unlock(&sc->mtx);
break;
case SIOCGIFMEDIA:
case SIOCSIFMEDIA:
error = ifmedia_ioctl(ifp, ifr, &sc->media, cmd);
break;
case SIOCSIFMTU:
/*
* Set the interface MTU.
*/
if (ifr->ifr_mtu > ATMMTU)
error = EINVAL;
else
ifp->if_mtu = ifr->ifr_mtu;
break;
case SIOCATMGVCCS:
/* return vcc table */
vtab = hatm_getvccs(sc);
if (vtab == NULL) {
error = ENOMEM;
break;
}
error = copyout(vtab, ifr->ifr_data, sizeof(*vtab) +
vtab->count * sizeof(vtab->vccs[0]));
free(vtab, M_DEVBUF);
break;
case SIOCATMENA: /* NATM internal use */
error = hatm_open_vcc1(sc, (struct atm_pseudoioctl *)data);
break;
case SIOCATMDIS: /* NATM internal use */
error = hatm_close_vcc1(sc, (struct atm_pseudoioctl *)data);
break;
case SIOCATMGETVCCS: /* netgraph internal use */
if ((vtab = hatm_getvccs(sc)) == NULL) {
error = ENOMEM;
break;
}
*(void **)data = vtab;
break;
case SIOCATMOPENVCC: /* netgraph/harp internal use */
error = hatm_open_vcc(sc, (struct atmio_openvcc *)data);
break;
case SIOCATMCLOSEVCC: /* netgraph and HARP internal use */
error = hatm_close_vcc(sc, (struct atmio_closevcc *)data);
break;
default:
DBG(sc, IOCTL, ("cmd=%08lx arg=%p", cmd, data));
error = EINVAL;
break;
}
return (error);
}
static int
hatm_sysctl_natm_traffic(SYSCTL_HANDLER_ARGS)
{
int error;
int tmp;
tmp = hatm_natm_traffic;
error = sysctl_handle_int(oidp, &tmp, 0, req);
if (error != 0 || req->newptr == NULL)
return (error);
if (tmp != ATMIO_TRAFFIC_UBR && tmp != ATMIO_TRAFFIC_CBR)
return (EINVAL);
hatm_natm_traffic = tmp;
return (0);
}
|