Merge branch 'powerpc-next' of master.kernel.org:/pub/scm/linux/kernel/git/galak...
[linux-2.6] / drivers / s390 / net / qeth_l3_sys.c
1 /*
2  *  drivers/s390/net/qeth_l3_sys.c
3  *
4  *    Copyright IBM Corp. 2007
5  *    Author(s): Utz Bacher <utz.bacher@de.ibm.com>,
6  *               Frank Pavlic <fpavlic@de.ibm.com>,
7  *               Thomas Spatzier <tspat@de.ibm.com>,
8  *               Frank Blaschka <frank.blaschka@de.ibm.com>
9  */
10
11 #include "qeth_l3.h"
12
13 #define QETH_DEVICE_ATTR(_id, _name, _mode, _show, _store) \
14 struct device_attribute dev_attr_##_id = __ATTR(_name, _mode, _show, _store)
15
16 static const char *qeth_l3_get_checksum_str(struct qeth_card *card)
17 {
18         if (card->options.checksum_type == SW_CHECKSUMMING)
19                 return "sw";
20         else if (card->options.checksum_type == HW_CHECKSUMMING)
21                 return "hw";
22         else
23                 return "no";
24 }
25
26 static ssize_t qeth_l3_dev_route_show(struct qeth_card *card,
27                         struct qeth_routing_info *route, char *buf)
28 {
29         switch (route->type) {
30         case PRIMARY_ROUTER:
31                 return sprintf(buf, "%s\n", "primary router");
32         case SECONDARY_ROUTER:
33                 return sprintf(buf, "%s\n", "secondary router");
34         case MULTICAST_ROUTER:
35                 if (card->info.broadcast_capable == QETH_BROADCAST_WITHOUT_ECHO)
36                         return sprintf(buf, "%s\n", "multicast router+");
37                 else
38                         return sprintf(buf, "%s\n", "multicast router");
39         case PRIMARY_CONNECTOR:
40                 if (card->info.broadcast_capable == QETH_BROADCAST_WITHOUT_ECHO)
41                         return sprintf(buf, "%s\n", "primary connector+");
42                 else
43                         return sprintf(buf, "%s\n", "primary connector");
44         case SECONDARY_CONNECTOR:
45                 if (card->info.broadcast_capable == QETH_BROADCAST_WITHOUT_ECHO)
46                         return sprintf(buf, "%s\n", "secondary connector+");
47                 else
48                         return sprintf(buf, "%s\n", "secondary connector");
49         default:
50                 return sprintf(buf, "%s\n", "no");
51         }
52 }
53
54 static ssize_t qeth_l3_dev_route4_show(struct device *dev,
55                         struct device_attribute *attr, char *buf)
56 {
57         struct qeth_card *card = dev_get_drvdata(dev);
58
59         if (!card)
60                 return -EINVAL;
61
62         return qeth_l3_dev_route_show(card, &card->options.route4, buf);
63 }
64
65 static ssize_t qeth_l3_dev_route_store(struct qeth_card *card,
66                 struct qeth_routing_info *route, enum qeth_prot_versions prot,
67                 const char *buf, size_t count)
68 {
69         enum qeth_routing_types old_route_type = route->type;
70         char *tmp;
71         int rc;
72
73         tmp = strsep((char **) &buf, "\n");
74
75         if (!strcmp(tmp, "no_router")) {
76                 route->type = NO_ROUTER;
77         } else if (!strcmp(tmp, "primary_connector")) {
78                 route->type = PRIMARY_CONNECTOR;
79         } else if (!strcmp(tmp, "secondary_connector")) {
80                 route->type = SECONDARY_CONNECTOR;
81         } else if (!strcmp(tmp, "primary_router")) {
82                 route->type = PRIMARY_ROUTER;
83         } else if (!strcmp(tmp, "secondary_router")) {
84                 route->type = SECONDARY_ROUTER;
85         } else if (!strcmp(tmp, "multicast_router")) {
86                 route->type = MULTICAST_ROUTER;
87         } else {
88                 PRINT_WARN("Invalid routing type '%s'.\n", tmp);
89                 return -EINVAL;
90         }
91         if (((card->state == CARD_STATE_SOFTSETUP) ||
92              (card->state == CARD_STATE_UP)) &&
93             (old_route_type != route->type)) {
94                 if (prot == QETH_PROT_IPV4)
95                         rc = qeth_l3_setrouting_v4(card);
96                 else if (prot == QETH_PROT_IPV6)
97                         rc = qeth_l3_setrouting_v6(card);
98         }
99         return count;
100 }
101
102 static ssize_t qeth_l3_dev_route4_store(struct device *dev,
103                 struct device_attribute *attr, const char *buf, size_t count)
104 {
105         struct qeth_card *card = dev_get_drvdata(dev);
106
107         if (!card)
108                 return -EINVAL;
109
110         return qeth_l3_dev_route_store(card, &card->options.route4,
111                                 QETH_PROT_IPV4, buf, count);
112 }
113
114 static DEVICE_ATTR(route4, 0644, qeth_l3_dev_route4_show,
115                         qeth_l3_dev_route4_store);
116
117 static ssize_t qeth_l3_dev_route6_show(struct device *dev,
118                         struct device_attribute *attr, char *buf)
119 {
120         struct qeth_card *card = dev_get_drvdata(dev);
121
122         if (!card)
123                 return -EINVAL;
124
125         if (!qeth_is_supported(card, IPA_IPV6))
126                 return sprintf(buf, "%s\n", "n/a");
127
128         return qeth_l3_dev_route_show(card, &card->options.route6, buf);
129 }
130
131 static ssize_t qeth_l3_dev_route6_store(struct device *dev,
132                 struct device_attribute *attr, const char *buf, size_t count)
133 {
134         struct qeth_card *card = dev_get_drvdata(dev);
135
136         if (!card)
137                 return -EINVAL;
138
139         if (!qeth_is_supported(card, IPA_IPV6)) {
140                 PRINT_WARN("IPv6 not supported for interface %s.\n"
141                            "Routing status no changed.\n",
142                            QETH_CARD_IFNAME(card));
143                 return -ENOTSUPP;
144         }
145
146         return qeth_l3_dev_route_store(card, &card->options.route6,
147                                 QETH_PROT_IPV6, buf, count);
148 }
149
150 static DEVICE_ATTR(route6, 0644, qeth_l3_dev_route6_show,
151                         qeth_l3_dev_route6_store);
152
153 static ssize_t qeth_l3_dev_fake_broadcast_show(struct device *dev,
154                         struct device_attribute *attr, char *buf)
155 {
156         struct qeth_card *card = dev_get_drvdata(dev);
157
158         if (!card)
159                 return -EINVAL;
160
161         return sprintf(buf, "%i\n", card->options.fake_broadcast? 1:0);
162 }
163
164 static ssize_t qeth_l3_dev_fake_broadcast_store(struct device *dev,
165                 struct device_attribute *attr, const char *buf, size_t count)
166 {
167         struct qeth_card *card = dev_get_drvdata(dev);
168         char *tmp;
169         int i;
170
171         if (!card)
172                 return -EINVAL;
173
174         if ((card->state != CARD_STATE_DOWN) &&
175             (card->state != CARD_STATE_RECOVER))
176                 return -EPERM;
177
178         i = simple_strtoul(buf, &tmp, 16);
179         if ((i == 0) || (i == 1))
180                 card->options.fake_broadcast = i;
181         else {
182                 PRINT_WARN("fake_broadcast: write 0 or 1 to this file!\n");
183                 return -EINVAL;
184         }
185         return count;
186 }
187
188 static DEVICE_ATTR(fake_broadcast, 0644, qeth_l3_dev_fake_broadcast_show,
189                    qeth_l3_dev_fake_broadcast_store);
190
191 static ssize_t qeth_l3_dev_broadcast_mode_show(struct device *dev,
192                                 struct device_attribute *attr, char *buf)
193 {
194         struct qeth_card *card = dev_get_drvdata(dev);
195
196         if (!card)
197                 return -EINVAL;
198
199         if (!((card->info.link_type == QETH_LINK_TYPE_HSTR) ||
200               (card->info.link_type == QETH_LINK_TYPE_LANE_TR)))
201                 return sprintf(buf, "n/a\n");
202
203         return sprintf(buf, "%s\n", (card->options.broadcast_mode ==
204                                      QETH_TR_BROADCAST_ALLRINGS)?
205                        "all rings":"local");
206 }
207
208 static ssize_t qeth_l3_dev_broadcast_mode_store(struct device *dev,
209                 struct device_attribute *attr, const char *buf, size_t count)
210 {
211         struct qeth_card *card = dev_get_drvdata(dev);
212         char *tmp;
213
214         if (!card)
215                 return -EINVAL;
216
217         if ((card->state != CARD_STATE_DOWN) &&
218             (card->state != CARD_STATE_RECOVER))
219                 return -EPERM;
220
221         if (!((card->info.link_type == QETH_LINK_TYPE_HSTR) ||
222               (card->info.link_type == QETH_LINK_TYPE_LANE_TR))) {
223                 PRINT_WARN("Device is not a tokenring device!\n");
224                 return -EINVAL;
225         }
226
227         tmp = strsep((char **) &buf, "\n");
228
229         if (!strcmp(tmp, "local")) {
230                 card->options.broadcast_mode = QETH_TR_BROADCAST_LOCAL;
231                 return count;
232         } else if (!strcmp(tmp, "all_rings")) {
233                 card->options.broadcast_mode = QETH_TR_BROADCAST_ALLRINGS;
234                 return count;
235         } else {
236                 PRINT_WARN("broadcast_mode: invalid mode %s!\n",
237                            tmp);
238                 return -EINVAL;
239         }
240         return count;
241 }
242
243 static DEVICE_ATTR(broadcast_mode, 0644, qeth_l3_dev_broadcast_mode_show,
244                    qeth_l3_dev_broadcast_mode_store);
245
246 static ssize_t qeth_l3_dev_canonical_macaddr_show(struct device *dev,
247                                 struct device_attribute *attr, char *buf)
248 {
249         struct qeth_card *card = dev_get_drvdata(dev);
250
251         if (!card)
252                 return -EINVAL;
253
254         if (!((card->info.link_type == QETH_LINK_TYPE_HSTR) ||
255               (card->info.link_type == QETH_LINK_TYPE_LANE_TR)))
256                 return sprintf(buf, "n/a\n");
257
258         return sprintf(buf, "%i\n", (card->options.macaddr_mode ==
259                                      QETH_TR_MACADDR_CANONICAL)? 1:0);
260 }
261
262 static ssize_t qeth_l3_dev_canonical_macaddr_store(struct device *dev,
263                 struct device_attribute *attr, const char *buf, size_t count)
264 {
265         struct qeth_card *card = dev_get_drvdata(dev);
266         char *tmp;
267         int i;
268
269         if (!card)
270                 return -EINVAL;
271
272         if ((card->state != CARD_STATE_DOWN) &&
273             (card->state != CARD_STATE_RECOVER))
274                 return -EPERM;
275
276         if (!((card->info.link_type == QETH_LINK_TYPE_HSTR) ||
277               (card->info.link_type == QETH_LINK_TYPE_LANE_TR))) {
278                 PRINT_WARN("Device is not a tokenring device!\n");
279                 return -EINVAL;
280         }
281
282         i = simple_strtoul(buf, &tmp, 16);
283         if ((i == 0) || (i == 1))
284                 card->options.macaddr_mode = i?
285                         QETH_TR_MACADDR_CANONICAL :
286                         QETH_TR_MACADDR_NONCANONICAL;
287         else {
288                 PRINT_WARN("canonical_macaddr: write 0 or 1 to this file!\n");
289                 return -EINVAL;
290         }
291         return count;
292 }
293
294 static DEVICE_ATTR(canonical_macaddr, 0644, qeth_l3_dev_canonical_macaddr_show,
295                    qeth_l3_dev_canonical_macaddr_store);
296
297 static ssize_t qeth_l3_dev_checksum_show(struct device *dev,
298                         struct device_attribute *attr, char *buf)
299 {
300         struct qeth_card *card = dev_get_drvdata(dev);
301
302         if (!card)
303                 return -EINVAL;
304
305         return sprintf(buf, "%s checksumming\n",
306                         qeth_l3_get_checksum_str(card));
307 }
308
309 static ssize_t qeth_l3_dev_checksum_store(struct device *dev,
310                 struct device_attribute *attr, const char *buf, size_t count)
311 {
312         struct qeth_card *card = dev_get_drvdata(dev);
313         char *tmp;
314
315         if (!card)
316                 return -EINVAL;
317
318         if ((card->state != CARD_STATE_DOWN) &&
319             (card->state != CARD_STATE_RECOVER))
320                 return -EPERM;
321
322         tmp = strsep((char **) &buf, "\n");
323         if (!strcmp(tmp, "sw_checksumming"))
324                 card->options.checksum_type = SW_CHECKSUMMING;
325         else if (!strcmp(tmp, "hw_checksumming"))
326                 card->options.checksum_type = HW_CHECKSUMMING;
327         else if (!strcmp(tmp, "no_checksumming"))
328                 card->options.checksum_type = NO_CHECKSUMMING;
329         else {
330                 PRINT_WARN("Unknown checksumming type '%s'\n", tmp);
331                 return -EINVAL;
332         }
333         return count;
334 }
335
336 static DEVICE_ATTR(checksumming, 0644, qeth_l3_dev_checksum_show,
337                 qeth_l3_dev_checksum_store);
338
339 static struct attribute *qeth_l3_device_attrs[] = {
340         &dev_attr_route4.attr,
341         &dev_attr_route6.attr,
342         &dev_attr_fake_broadcast.attr,
343         &dev_attr_broadcast_mode.attr,
344         &dev_attr_canonical_macaddr.attr,
345         &dev_attr_checksumming.attr,
346         NULL,
347 };
348
349 static struct attribute_group qeth_l3_device_attr_group = {
350         .attrs = qeth_l3_device_attrs,
351 };
352
353 static ssize_t qeth_l3_dev_ipato_enable_show(struct device *dev,
354                         struct device_attribute *attr, char *buf)
355 {
356         struct qeth_card *card = dev_get_drvdata(dev);
357
358         if (!card)
359                 return -EINVAL;
360
361         return sprintf(buf, "%i\n", card->ipato.enabled? 1:0);
362 }
363
364 static ssize_t qeth_l3_dev_ipato_enable_store(struct device *dev,
365                 struct device_attribute *attr, const char *buf, size_t count)
366 {
367         struct qeth_card *card = dev_get_drvdata(dev);
368         char *tmp;
369
370         if (!card)
371                 return -EINVAL;
372
373         if ((card->state != CARD_STATE_DOWN) &&
374             (card->state != CARD_STATE_RECOVER))
375                 return -EPERM;
376
377         tmp = strsep((char **) &buf, "\n");
378         if (!strcmp(tmp, "toggle")) {
379                 card->ipato.enabled = (card->ipato.enabled)? 0 : 1;
380         } else if (!strcmp(tmp, "1")) {
381                 card->ipato.enabled = 1;
382         } else if (!strcmp(tmp, "0")) {
383                 card->ipato.enabled = 0;
384         } else {
385                 PRINT_WARN("ipato_enable: write 0, 1 or 'toggle' to "
386                            "this file\n");
387                 return -EINVAL;
388         }
389         return count;
390 }
391
392 static QETH_DEVICE_ATTR(ipato_enable, enable, 0644,
393                         qeth_l3_dev_ipato_enable_show,
394                         qeth_l3_dev_ipato_enable_store);
395
396 static ssize_t qeth_l3_dev_ipato_invert4_show(struct device *dev,
397                                 struct device_attribute *attr, char *buf)
398 {
399         struct qeth_card *card = dev_get_drvdata(dev);
400
401         if (!card)
402                 return -EINVAL;
403
404         return sprintf(buf, "%i\n", card->ipato.invert4? 1:0);
405 }
406
407 static ssize_t qeth_l3_dev_ipato_invert4_store(struct device *dev,
408                                 struct device_attribute *attr,
409                                 const char *buf, size_t count)
410 {
411         struct qeth_card *card = dev_get_drvdata(dev);
412         char *tmp;
413
414         if (!card)
415                 return -EINVAL;
416
417         tmp = strsep((char **) &buf, "\n");
418         if (!strcmp(tmp, "toggle")) {
419                 card->ipato.invert4 = (card->ipato.invert4)? 0 : 1;
420         } else if (!strcmp(tmp, "1")) {
421                 card->ipato.invert4 = 1;
422         } else if (!strcmp(tmp, "0")) {
423                 card->ipato.invert4 = 0;
424         } else {
425                 PRINT_WARN("ipato_invert4: write 0, 1 or 'toggle' to "
426                            "this file\n");
427                 return -EINVAL;
428         }
429         return count;
430 }
431
432 static QETH_DEVICE_ATTR(ipato_invert4, invert4, 0644,
433                         qeth_l3_dev_ipato_invert4_show,
434                         qeth_l3_dev_ipato_invert4_store);
435
436 static ssize_t qeth_l3_dev_ipato_add_show(char *buf, struct qeth_card *card,
437                         enum qeth_prot_versions proto)
438 {
439         struct qeth_ipato_entry *ipatoe;
440         unsigned long flags;
441         char addr_str[40];
442         int entry_len; /* length of 1 entry string, differs between v4 and v6 */
443         int i = 0;
444
445         entry_len = (proto == QETH_PROT_IPV4)? 12 : 40;
446         /* add strlen for "/<mask>\n" */
447         entry_len += (proto == QETH_PROT_IPV4)? 5 : 6;
448         spin_lock_irqsave(&card->ip_lock, flags);
449         list_for_each_entry(ipatoe, &card->ipato.entries, entry) {
450                 if (ipatoe->proto != proto)
451                         continue;
452                 /* String must not be longer than PAGE_SIZE. So we check if
453                  * string length gets near PAGE_SIZE. Then we can savely display
454                  * the next IPv6 address (worst case, compared to IPv4) */
455                 if ((PAGE_SIZE - i) <= entry_len)
456                         break;
457                 qeth_l3_ipaddr_to_string(proto, ipatoe->addr, addr_str);
458                 i += snprintf(buf + i, PAGE_SIZE - i,
459                               "%s/%i\n", addr_str, ipatoe->mask_bits);
460         }
461         spin_unlock_irqrestore(&card->ip_lock, flags);
462         i += snprintf(buf + i, PAGE_SIZE - i, "\n");
463
464         return i;
465 }
466
467 static ssize_t qeth_l3_dev_ipato_add4_show(struct device *dev,
468                                 struct device_attribute *attr, char *buf)
469 {
470         struct qeth_card *card = dev_get_drvdata(dev);
471
472         if (!card)
473                 return -EINVAL;
474
475         return qeth_l3_dev_ipato_add_show(buf, card, QETH_PROT_IPV4);
476 }
477
478 static int qeth_l3_parse_ipatoe(const char *buf, enum qeth_prot_versions proto,
479                   u8 *addr, int *mask_bits)
480 {
481         const char *start, *end;
482         char *tmp;
483         char buffer[40] = {0, };
484
485         start = buf;
486         /* get address string */
487         end = strchr(start, '/');
488         if (!end || (end - start >= 40)) {
489                 PRINT_WARN("Invalid format for ipato_addx/delx. "
490                            "Use <ip addr>/<mask bits>\n");
491                 return -EINVAL;
492         }
493         strncpy(buffer, start, end - start);
494         if (qeth_l3_string_to_ipaddr(buffer, proto, addr)) {
495                 PRINT_WARN("Invalid IP address format!\n");
496                 return -EINVAL;
497         }
498         start = end + 1;
499         *mask_bits = simple_strtoul(start, &tmp, 10);
500         if (!strlen(start) ||
501             (tmp == start) ||
502             (*mask_bits > ((proto == QETH_PROT_IPV4) ? 32 : 128))) {
503                 PRINT_WARN("Invalid mask bits for ipato_addx/delx !\n");
504                 return -EINVAL;
505         }
506         return 0;
507 }
508
509 static ssize_t qeth_l3_dev_ipato_add_store(const char *buf, size_t count,
510                          struct qeth_card *card, enum qeth_prot_versions proto)
511 {
512         struct qeth_ipato_entry *ipatoe;
513         u8 addr[16];
514         int mask_bits;
515         int rc;
516
517         rc = qeth_l3_parse_ipatoe(buf, proto, addr, &mask_bits);
518         if (rc)
519                 return rc;
520
521         ipatoe = kzalloc(sizeof(struct qeth_ipato_entry), GFP_KERNEL);
522         if (!ipatoe) {
523                 PRINT_WARN("No memory to allocate ipato entry\n");
524                 return -ENOMEM;
525         }
526         ipatoe->proto = proto;
527         memcpy(ipatoe->addr, addr, (proto == QETH_PROT_IPV4)? 4:16);
528         ipatoe->mask_bits = mask_bits;
529
530         rc = qeth_l3_add_ipato_entry(card, ipatoe);
531         if (rc) {
532                 kfree(ipatoe);
533                 return rc;
534         }
535
536         return count;
537 }
538
539 static ssize_t qeth_l3_dev_ipato_add4_store(struct device *dev,
540                 struct device_attribute *attr, const char *buf, size_t count)
541 {
542         struct qeth_card *card = dev_get_drvdata(dev);
543
544         if (!card)
545                 return -EINVAL;
546
547         return qeth_l3_dev_ipato_add_store(buf, count, card, QETH_PROT_IPV4);
548 }
549
550 static QETH_DEVICE_ATTR(ipato_add4, add4, 0644,
551                         qeth_l3_dev_ipato_add4_show,
552                         qeth_l3_dev_ipato_add4_store);
553
554 static ssize_t qeth_l3_dev_ipato_del_store(const char *buf, size_t count,
555                          struct qeth_card *card, enum qeth_prot_versions proto)
556 {
557         u8 addr[16];
558         int mask_bits;
559         int rc;
560
561         rc = qeth_l3_parse_ipatoe(buf, proto, addr, &mask_bits);
562         if (rc)
563                 return rc;
564
565         qeth_l3_del_ipato_entry(card, proto, addr, mask_bits);
566
567         return count;
568 }
569
570 static ssize_t qeth_l3_dev_ipato_del4_store(struct device *dev,
571                 struct device_attribute *attr, const char *buf, size_t count)
572 {
573         struct qeth_card *card = dev_get_drvdata(dev);
574
575         if (!card)
576                 return -EINVAL;
577
578         return qeth_l3_dev_ipato_del_store(buf, count, card, QETH_PROT_IPV4);
579 }
580
581 static QETH_DEVICE_ATTR(ipato_del4, del4, 0200, NULL,
582                         qeth_l3_dev_ipato_del4_store);
583
584 static ssize_t qeth_l3_dev_ipato_invert6_show(struct device *dev,
585                 struct device_attribute *attr, char *buf)
586 {
587         struct qeth_card *card = dev_get_drvdata(dev);
588
589         if (!card)
590                 return -EINVAL;
591
592         return sprintf(buf, "%i\n", card->ipato.invert6? 1:0);
593 }
594
595 static ssize_t qeth_l3_dev_ipato_invert6_store(struct device *dev,
596                 struct device_attribute *attr, const char *buf, size_t count)
597 {
598         struct qeth_card *card = dev_get_drvdata(dev);
599         char *tmp;
600
601         if (!card)
602                 return -EINVAL;
603
604         tmp = strsep((char **) &buf, "\n");
605         if (!strcmp(tmp, "toggle")) {
606                 card->ipato.invert6 = (card->ipato.invert6)? 0 : 1;
607         } else if (!strcmp(tmp, "1")) {
608                 card->ipato.invert6 = 1;
609         } else if (!strcmp(tmp, "0")) {
610                 card->ipato.invert6 = 0;
611         } else {
612                 PRINT_WARN("ipato_invert6: write 0, 1 or 'toggle' to "
613                            "this file\n");
614                 return -EINVAL;
615         }
616         return count;
617 }
618
619 static QETH_DEVICE_ATTR(ipato_invert6, invert6, 0644,
620                         qeth_l3_dev_ipato_invert6_show,
621                         qeth_l3_dev_ipato_invert6_store);
622
623
624 static ssize_t qeth_l3_dev_ipato_add6_show(struct device *dev,
625                                 struct device_attribute *attr, char *buf)
626 {
627         struct qeth_card *card = dev_get_drvdata(dev);
628
629         if (!card)
630                 return -EINVAL;
631
632         return qeth_l3_dev_ipato_add_show(buf, card, QETH_PROT_IPV6);
633 }
634
635 static ssize_t qeth_l3_dev_ipato_add6_store(struct device *dev,
636                 struct device_attribute *attr, const char *buf, size_t count)
637 {
638         struct qeth_card *card = dev_get_drvdata(dev);
639
640         if (!card)
641                 return -EINVAL;
642
643         return qeth_l3_dev_ipato_add_store(buf, count, card, QETH_PROT_IPV6);
644 }
645
646 static QETH_DEVICE_ATTR(ipato_add6, add6, 0644,
647                         qeth_l3_dev_ipato_add6_show,
648                         qeth_l3_dev_ipato_add6_store);
649
650 static ssize_t qeth_l3_dev_ipato_del6_store(struct device *dev,
651                 struct device_attribute *attr, const char *buf, size_t count)
652 {
653         struct qeth_card *card = dev_get_drvdata(dev);
654
655         if (!card)
656                 return -EINVAL;
657
658         return qeth_l3_dev_ipato_del_store(buf, count, card, QETH_PROT_IPV6);
659 }
660
661 static QETH_DEVICE_ATTR(ipato_del6, del6, 0200, NULL,
662                         qeth_l3_dev_ipato_del6_store);
663
664 static struct attribute *qeth_ipato_device_attrs[] = {
665         &dev_attr_ipato_enable.attr,
666         &dev_attr_ipato_invert4.attr,
667         &dev_attr_ipato_add4.attr,
668         &dev_attr_ipato_del4.attr,
669         &dev_attr_ipato_invert6.attr,
670         &dev_attr_ipato_add6.attr,
671         &dev_attr_ipato_del6.attr,
672         NULL,
673 };
674
675 static struct attribute_group qeth_device_ipato_group = {
676         .name = "ipa_takeover",
677         .attrs = qeth_ipato_device_attrs,
678 };
679
680 static ssize_t qeth_l3_dev_vipa_add_show(char *buf, struct qeth_card *card,
681                         enum qeth_prot_versions proto)
682 {
683         struct qeth_ipaddr *ipaddr;
684         char addr_str[40];
685         int entry_len; /* length of 1 entry string, differs between v4 and v6 */
686         unsigned long flags;
687         int i = 0;
688
689         entry_len = (proto == QETH_PROT_IPV4)? 12 : 40;
690         entry_len += 2; /* \n + terminator */
691         spin_lock_irqsave(&card->ip_lock, flags);
692         list_for_each_entry(ipaddr, &card->ip_list, entry) {
693                 if (ipaddr->proto != proto)
694                         continue;
695                 if (ipaddr->type != QETH_IP_TYPE_VIPA)
696                         continue;
697                 /* String must not be longer than PAGE_SIZE. So we check if
698                  * string length gets near PAGE_SIZE. Then we can savely display
699                  * the next IPv6 address (worst case, compared to IPv4) */
700                 if ((PAGE_SIZE - i) <= entry_len)
701                         break;
702                 qeth_l3_ipaddr_to_string(proto, (const u8 *)&ipaddr->u,
703                         addr_str);
704                 i += snprintf(buf + i, PAGE_SIZE - i, "%s\n", addr_str);
705         }
706         spin_unlock_irqrestore(&card->ip_lock, flags);
707         i += snprintf(buf + i, PAGE_SIZE - i, "\n");
708
709         return i;
710 }
711
712 static ssize_t qeth_l3_dev_vipa_add4_show(struct device *dev,
713                         struct device_attribute *attr, char *buf)
714 {
715         struct qeth_card *card = dev_get_drvdata(dev);
716
717         if (!card)
718                 return -EINVAL;
719
720         return qeth_l3_dev_vipa_add_show(buf, card, QETH_PROT_IPV4);
721 }
722
723 static int qeth_l3_parse_vipae(const char *buf, enum qeth_prot_versions proto,
724                  u8 *addr)
725 {
726         if (qeth_l3_string_to_ipaddr(buf, proto, addr)) {
727                 PRINT_WARN("Invalid IP address format!\n");
728                 return -EINVAL;
729         }
730         return 0;
731 }
732
733 static ssize_t qeth_l3_dev_vipa_add_store(const char *buf, size_t count,
734                         struct qeth_card *card, enum qeth_prot_versions proto)
735 {
736         u8 addr[16] = {0, };
737         int rc;
738
739         rc = qeth_l3_parse_vipae(buf, proto, addr);
740         if (rc)
741                 return rc;
742
743         rc = qeth_l3_add_vipa(card, proto, addr);
744         if (rc)
745                 return rc;
746
747         return count;
748 }
749
750 static ssize_t qeth_l3_dev_vipa_add4_store(struct device *dev,
751                 struct device_attribute *attr, const char *buf, size_t count)
752 {
753         struct qeth_card *card = dev_get_drvdata(dev);
754
755         if (!card)
756                 return -EINVAL;
757
758         return qeth_l3_dev_vipa_add_store(buf, count, card, QETH_PROT_IPV4);
759 }
760
761 static QETH_DEVICE_ATTR(vipa_add4, add4, 0644,
762                         qeth_l3_dev_vipa_add4_show,
763                         qeth_l3_dev_vipa_add4_store);
764
765 static ssize_t qeth_l3_dev_vipa_del_store(const char *buf, size_t count,
766                          struct qeth_card *card, enum qeth_prot_versions proto)
767 {
768         u8 addr[16];
769         int rc;
770
771         rc = qeth_l3_parse_vipae(buf, proto, addr);
772         if (rc)
773                 return rc;
774
775         qeth_l3_del_vipa(card, proto, addr);
776
777         return count;
778 }
779
780 static ssize_t qeth_l3_dev_vipa_del4_store(struct device *dev,
781                 struct device_attribute *attr, const char *buf, size_t count)
782 {
783         struct qeth_card *card = dev_get_drvdata(dev);
784
785         if (!card)
786                 return -EINVAL;
787
788         return qeth_l3_dev_vipa_del_store(buf, count, card, QETH_PROT_IPV4);
789 }
790
791 static QETH_DEVICE_ATTR(vipa_del4, del4, 0200, NULL,
792                         qeth_l3_dev_vipa_del4_store);
793
794 static ssize_t qeth_l3_dev_vipa_add6_show(struct device *dev,
795                                 struct device_attribute *attr, char *buf)
796 {
797         struct qeth_card *card = dev_get_drvdata(dev);
798
799         if (!card)
800                 return -EINVAL;
801
802         return qeth_l3_dev_vipa_add_show(buf, card, QETH_PROT_IPV6);
803 }
804
805 static ssize_t qeth_l3_dev_vipa_add6_store(struct device *dev,
806                 struct device_attribute *attr, const char *buf, size_t count)
807 {
808         struct qeth_card *card = dev_get_drvdata(dev);
809
810         if (!card)
811                 return -EINVAL;
812
813         return qeth_l3_dev_vipa_add_store(buf, count, card, QETH_PROT_IPV6);
814 }
815
816 static QETH_DEVICE_ATTR(vipa_add6, add6, 0644,
817                         qeth_l3_dev_vipa_add6_show,
818                         qeth_l3_dev_vipa_add6_store);
819
820 static ssize_t qeth_l3_dev_vipa_del6_store(struct device *dev,
821                 struct device_attribute *attr, const char *buf, size_t count)
822 {
823         struct qeth_card *card = dev_get_drvdata(dev);
824
825         if (!card)
826                 return -EINVAL;
827
828         return qeth_l3_dev_vipa_del_store(buf, count, card, QETH_PROT_IPV6);
829 }
830
831 static QETH_DEVICE_ATTR(vipa_del6, del6, 0200, NULL,
832                         qeth_l3_dev_vipa_del6_store);
833
834 static struct attribute *qeth_vipa_device_attrs[] = {
835         &dev_attr_vipa_add4.attr,
836         &dev_attr_vipa_del4.attr,
837         &dev_attr_vipa_add6.attr,
838         &dev_attr_vipa_del6.attr,
839         NULL,
840 };
841
842 static struct attribute_group qeth_device_vipa_group = {
843         .name = "vipa",
844         .attrs = qeth_vipa_device_attrs,
845 };
846
847 static ssize_t qeth_l3_dev_rxip_add_show(char *buf, struct qeth_card *card,
848                        enum qeth_prot_versions proto)
849 {
850         struct qeth_ipaddr *ipaddr;
851         char addr_str[40];
852         int entry_len; /* length of 1 entry string, differs between v4 and v6 */
853         unsigned long flags;
854         int i = 0;
855
856         entry_len = (proto == QETH_PROT_IPV4)? 12 : 40;
857         entry_len += 2; /* \n + terminator */
858         spin_lock_irqsave(&card->ip_lock, flags);
859         list_for_each_entry(ipaddr, &card->ip_list, entry) {
860                 if (ipaddr->proto != proto)
861                         continue;
862                 if (ipaddr->type != QETH_IP_TYPE_RXIP)
863                         continue;
864                 /* String must not be longer than PAGE_SIZE. So we check if
865                  * string length gets near PAGE_SIZE. Then we can savely display
866                  * the next IPv6 address (worst case, compared to IPv4) */
867                 if ((PAGE_SIZE - i) <= entry_len)
868                         break;
869                 qeth_l3_ipaddr_to_string(proto, (const u8 *)&ipaddr->u,
870                         addr_str);
871                 i += snprintf(buf + i, PAGE_SIZE - i, "%s\n", addr_str);
872         }
873         spin_unlock_irqrestore(&card->ip_lock, flags);
874         i += snprintf(buf + i, PAGE_SIZE - i, "\n");
875
876         return i;
877 }
878
879 static ssize_t qeth_l3_dev_rxip_add4_show(struct device *dev,
880                         struct device_attribute *attr, char *buf)
881 {
882         struct qeth_card *card = dev_get_drvdata(dev);
883
884         if (!card)
885                 return -EINVAL;
886
887         return qeth_l3_dev_rxip_add_show(buf, card, QETH_PROT_IPV4);
888 }
889
890 static int qeth_l3_parse_rxipe(const char *buf, enum qeth_prot_versions proto,
891                  u8 *addr)
892 {
893         if (qeth_l3_string_to_ipaddr(buf, proto, addr)) {
894                 PRINT_WARN("Invalid IP address format!\n");
895                 return -EINVAL;
896         }
897         return 0;
898 }
899
900 static ssize_t qeth_l3_dev_rxip_add_store(const char *buf, size_t count,
901                         struct qeth_card *card, enum qeth_prot_versions proto)
902 {
903         u8 addr[16] = {0, };
904         int rc;
905
906         rc = qeth_l3_parse_rxipe(buf, proto, addr);
907         if (rc)
908                 return rc;
909
910         rc = qeth_l3_add_rxip(card, proto, addr);
911         if (rc)
912                 return rc;
913
914         return count;
915 }
916
917 static ssize_t qeth_l3_dev_rxip_add4_store(struct device *dev,
918                 struct device_attribute *attr, const char *buf, size_t count)
919 {
920         struct qeth_card *card = dev_get_drvdata(dev);
921
922         if (!card)
923                 return -EINVAL;
924
925         return qeth_l3_dev_rxip_add_store(buf, count, card, QETH_PROT_IPV4);
926 }
927
928 static QETH_DEVICE_ATTR(rxip_add4, add4, 0644,
929                         qeth_l3_dev_rxip_add4_show,
930                         qeth_l3_dev_rxip_add4_store);
931
932 static ssize_t qeth_l3_dev_rxip_del_store(const char *buf, size_t count,
933                         struct qeth_card *card, enum qeth_prot_versions proto)
934 {
935         u8 addr[16];
936         int rc;
937
938         rc = qeth_l3_parse_rxipe(buf, proto, addr);
939         if (rc)
940                 return rc;
941
942         qeth_l3_del_rxip(card, proto, addr);
943
944         return count;
945 }
946
947 static ssize_t qeth_l3_dev_rxip_del4_store(struct device *dev,
948                 struct device_attribute *attr, const char *buf, size_t count)
949 {
950         struct qeth_card *card = dev_get_drvdata(dev);
951
952         if (!card)
953                 return -EINVAL;
954
955         return qeth_l3_dev_rxip_del_store(buf, count, card, QETH_PROT_IPV4);
956 }
957
958 static QETH_DEVICE_ATTR(rxip_del4, del4, 0200, NULL,
959                         qeth_l3_dev_rxip_del4_store);
960
961 static ssize_t qeth_l3_dev_rxip_add6_show(struct device *dev,
962                 struct device_attribute *attr, char *buf)
963 {
964         struct qeth_card *card = dev_get_drvdata(dev);
965
966         if (!card)
967                 return -EINVAL;
968
969         return qeth_l3_dev_rxip_add_show(buf, card, QETH_PROT_IPV6);
970 }
971
972 static ssize_t qeth_l3_dev_rxip_add6_store(struct device *dev,
973                 struct device_attribute *attr, const char *buf, size_t count)
974 {
975         struct qeth_card *card = dev_get_drvdata(dev);
976
977         if (!card)
978                 return -EINVAL;
979
980         return qeth_l3_dev_rxip_add_store(buf, count, card, QETH_PROT_IPV6);
981 }
982
983 static QETH_DEVICE_ATTR(rxip_add6, add6, 0644,
984                         qeth_l3_dev_rxip_add6_show,
985                         qeth_l3_dev_rxip_add6_store);
986
987 static ssize_t qeth_l3_dev_rxip_del6_store(struct device *dev,
988                 struct device_attribute *attr, const char *buf, size_t count)
989 {
990         struct qeth_card *card = dev_get_drvdata(dev);
991
992         if (!card)
993                 return -EINVAL;
994
995         return qeth_l3_dev_rxip_del_store(buf, count, card, QETH_PROT_IPV6);
996 }
997
998 static QETH_DEVICE_ATTR(rxip_del6, del6, 0200, NULL,
999                         qeth_l3_dev_rxip_del6_store);
1000
1001 static struct attribute *qeth_rxip_device_attrs[] = {
1002         &dev_attr_rxip_add4.attr,
1003         &dev_attr_rxip_del4.attr,
1004         &dev_attr_rxip_add6.attr,
1005         &dev_attr_rxip_del6.attr,
1006         NULL,
1007 };
1008
1009 static struct attribute_group qeth_device_rxip_group = {
1010         .name = "rxip",
1011         .attrs = qeth_rxip_device_attrs,
1012 };
1013
1014 int qeth_l3_create_device_attributes(struct device *dev)
1015 {
1016         int ret;
1017
1018         ret = sysfs_create_group(&dev->kobj, &qeth_l3_device_attr_group);
1019         if (ret)
1020                 return ret;
1021
1022         ret = sysfs_create_group(&dev->kobj, &qeth_device_ipato_group);
1023         if (ret) {
1024                 sysfs_remove_group(&dev->kobj, &qeth_l3_device_attr_group);
1025                 return ret;
1026         }
1027
1028         ret = sysfs_create_group(&dev->kobj, &qeth_device_vipa_group);
1029         if (ret) {
1030                 sysfs_remove_group(&dev->kobj, &qeth_l3_device_attr_group);
1031                 sysfs_remove_group(&dev->kobj, &qeth_device_ipato_group);
1032                 return ret;
1033         }
1034
1035         ret = sysfs_create_group(&dev->kobj, &qeth_device_rxip_group);
1036         if (ret) {
1037                 sysfs_remove_group(&dev->kobj, &qeth_l3_device_attr_group);
1038                 sysfs_remove_group(&dev->kobj, &qeth_device_ipato_group);
1039                 sysfs_remove_group(&dev->kobj, &qeth_device_vipa_group);
1040                 return ret;
1041         }
1042         return 0;
1043 }
1044
1045 void qeth_l3_remove_device_attributes(struct device *dev)
1046 {
1047         sysfs_remove_group(&dev->kobj, &qeth_l3_device_attr_group);
1048         sysfs_remove_group(&dev->kobj, &qeth_device_ipato_group);
1049         sysfs_remove_group(&dev->kobj, &qeth_device_vipa_group);
1050         sysfs_remove_group(&dev->kobj, &qeth_device_rxip_group);
1051 }