This source file includes following definitions.
- ipxcfg_set_auto_create
- ipxcfg_set_auto_select
- ipxcfg_get_config_data
- ipx_remove_socket
- ipx_destroy_socket
- ipxitf_clear_primary_net
- ipxitf_find_using_phys
- ipxitf_find_using_net
- ipxitf_insert_socket
- ipxitf_find_socket
- ipxitf_down
- ipxitf_device_event
- ipxitf_def_skb_handler
- ipxitf_demux_socket
- ipxitf_adjust_skbuff
- ipxitf_send
- ipxitf_add_local_route
- ipxitf_rcv
- ipxitf_insert
- ipxitf_create_internal
- ipx_map_frame_type
- ipxitf_create
- ipxitf_delete
- ipxitf_auto_create
- ipxitf_ioctl
- ipxrtr_lookup
- ipxrtr_add_route
- ipxrtr_del_routes
- ipxrtr_create
- ipxrtr_delete
- ipxrtr_route_packet
- ipxrtr_route_skb
- ipxrtr_ioctl
- ipx_frame_name
- ipx_device_name
- ipx_get_interface_info
- ipx_get_info
- ipx_rt_get_info
- ipx_fcntl
- ipx_setsockopt
- ipx_getsockopt
- ipx_listen
- def_callback1
- def_callback2
- ipx_create
- ipx_release
- ipx_dup
- ipx_first_free_socketnum
- ipx_bind
- ipx_connect
- ipx_socketpair
- ipx_accept
- ipx_getname
- dump_data
- dump_addr
- dump_hdr
- dump_pkt
- ipx_rcv
- ipx_sendto
- ipx_send
- ipx_recvfrom
- ipx_write
- ipx_recv
- ipx_read
- ipx_shutdown
- ipx_select
- ipx_ioctl
- ipx_proto_init
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43 #include <linux/config.h>
44 #include <linux/errno.h>
45 #include <linux/types.h>
46 #include <linux/socket.h>
47 #include <linux/in.h>
48 #include <linux/kernel.h>
49 #include <linux/sched.h>
50 #include <linux/timer.h>
51 #include <linux/string.h>
52 #include <linux/sockios.h>
53 #include <linux/net.h>
54 #include <linux/ipx.h>
55 #include <linux/inet.h>
56 #include <linux/netdevice.h>
57 #include <linux/skbuff.h>
58 #include "sock.h"
59 #include <asm/segment.h>
60 #include <asm/system.h>
61 #include <linux/fcntl.h>
62 #include <linux/mm.h>
63 #include <linux/termios.h>
64 #include <linux/interrupt.h>
65 #include "p8022.h"
66 #include "psnap.h"
67
68 #ifdef CONFIG_IPX
69
70 static unsigned char ipxcfg_max_hops = 16;
71 static char ipxcfg_auto_select_primary = 0;
72 static char ipxcfg_auto_create_interfaces = 0;
73
74
75 static struct datalink_proto *p8022_datalink = NULL;
76 static struct datalink_proto *pEII_datalink = NULL;
77 static struct datalink_proto *p8023_datalink = NULL;
78 static struct datalink_proto *pSNAP_datalink = NULL;
79
80 static ipx_interface *ipx_interfaces = NULL;
81 static ipx_route *ipx_routes = NULL;
82 static ipx_interface *ipx_internal_net = NULL;
83 static ipx_interface *ipx_primary_net = NULL;
84
85 static int
86 ipxcfg_set_auto_create(char val)
87 {
88 ipxcfg_auto_create_interfaces = val;
89 return 0;
90 }
91
92 static int
93 ipxcfg_set_auto_select(char val)
94 {
95 ipxcfg_auto_select_primary = val;
96 if (val && (ipx_primary_net == NULL))
97 ipx_primary_net = ipx_interfaces;
98 return 0;
99 }
100
101 static int
102 ipxcfg_get_config_data(ipx_config_data *arg)
103 {
104 ipx_config_data vals;
105
106 vals.ipxcfg_auto_create_interfaces = ipxcfg_auto_create_interfaces;
107 vals.ipxcfg_auto_select_primary = ipxcfg_auto_select_primary;
108 memcpy_tofs(arg, &vals, sizeof(vals));
109 return 0;
110 }
111
112
113
114
115
116
117
118
119
120
121
122
123
124
125 static void
126 ipx_remove_socket(ipx_socket *sk)
127 {
128 ipx_socket *s;
129 ipx_interface *intrfc;
130 unsigned long flags;
131
132 save_flags(flags);
133 cli();
134
135
136 intrfc = sk->ipx_intrfc;
137 if (intrfc == NULL) {
138 restore_flags(flags);
139 return;
140 }
141
142 s=intrfc->if_sklist;
143 if(s==sk) {
144 intrfc->if_sklist=s->next;
145 restore_flags(flags);
146 return;
147 }
148
149 while(s && s->next) {
150 if(s->next==sk) {
151 s->next=sk->next;
152 restore_flags(flags);
153 return;
154 }
155 s=s->next;
156 }
157 restore_flags(flags);
158 }
159
160
161
162
163
164
165
166
167 static void
168 ipx_destroy_socket(ipx_socket *sk)
169 {
170 struct sk_buff *skb;
171
172 ipx_remove_socket(sk);
173 while((skb=skb_dequeue(&sk->receive_queue))!=NULL) {
174 kfree_skb(skb,FREE_READ);
175 }
176
177 kfree_s(sk,sizeof(*sk));
178 }
179
180
181
182
183
184 static ipx_route * ipxrtr_lookup(unsigned long);
185
186 static void
187 ipxitf_clear_primary_net(void)
188 {
189 if (ipxcfg_auto_select_primary && (ipx_interfaces != NULL))
190 ipx_primary_net = ipx_interfaces;
191 else
192 ipx_primary_net = NULL;
193 }
194
195 static ipx_interface *
196 ipxitf_find_using_phys(struct device *dev, unsigned short datalink)
197 {
198 ipx_interface *i;
199
200 for (i=ipx_interfaces;
201 i && ((i->if_dev!=dev) || (i->if_dlink_type!=datalink));
202 i=i->if_next)
203 ;
204 return i;
205 }
206
207 static ipx_interface *
208 ipxitf_find_using_net(unsigned long net)
209 {
210 ipx_interface *i;
211
212 if (net == 0L)
213 return ipx_primary_net;
214
215 for (i=ipx_interfaces; i && (i->if_netnum!=net); i=i->if_next)
216 ;
217
218 return i;
219 }
220
221
222 static void
223 ipxitf_insert_socket(ipx_interface *intrfc, ipx_socket *sk)
224 {
225 ipx_socket *s;
226
227 sk->ipx_intrfc = intrfc;
228 sk->next = NULL;
229 if (intrfc->if_sklist == NULL) {
230 intrfc->if_sklist = sk;
231 } else {
232 for (s = intrfc->if_sklist; s->next != NULL; s = s->next)
233 ;
234 s->next = sk;
235 }
236 }
237
238 static ipx_socket *
239 ipxitf_find_socket(ipx_interface *intrfc, unsigned short port)
240 {
241 ipx_socket *s;
242
243 for (s=intrfc->if_sklist;
244 (s != NULL) && (s->ipx_port != port);
245 s=s->next)
246 ;
247
248 return s;
249 }
250
251 static void ipxrtr_del_routes(ipx_interface *);
252
253 static void
254 ipxitf_down(ipx_interface *intrfc)
255 {
256 ipx_interface *i;
257 ipx_socket *s, *t;
258
259
260 ipxrtr_del_routes(intrfc);
261
262
263 for (s = intrfc->if_sklist; s != NULL; ) {
264 s->err = ENOLINK;
265 s->error_report(s);
266 s->ipx_intrfc = NULL;
267 s->ipx_port = 0;
268 s->zapped=1;
269 t = s;
270 s = s->next;
271 t->next = NULL;
272 }
273 intrfc->if_sklist = NULL;
274
275
276 if (intrfc == ipx_interfaces) {
277 ipx_interfaces = intrfc->if_next;
278 } else {
279 for (i = ipx_interfaces;
280 (i != NULL) && (i->if_next != intrfc);
281 i = i->if_next)
282 ;
283 if ((i != NULL) && (i->if_next == intrfc))
284 i->if_next = intrfc->if_next;
285 }
286
287
288 if (intrfc == ipx_primary_net)
289 ipxitf_clear_primary_net();
290 if (intrfc == ipx_internal_net)
291 ipx_internal_net = NULL;
292
293 kfree_s(intrfc, sizeof(*intrfc));
294 }
295
296 static int
297 ipxitf_device_event(unsigned long event, void *ptr)
298 {
299 struct device *dev = ptr;
300 ipx_interface *i, *tmp;
301
302 if(event!=NETDEV_DOWN)
303 return NOTIFY_DONE;
304
305 for (i = ipx_interfaces; i != NULL; ) {
306
307 tmp = i->if_next;
308 if (i->if_dev == dev)
309 ipxitf_down(i);
310 i = tmp;
311
312 }
313
314 return NOTIFY_DONE;
315 }
316
317 static int
318 ipxitf_def_skb_handler(struct sock *sock, struct sk_buff *skb)
319 {
320 int retval;
321
322 if((retval = sock_queue_rcv_skb(sock, skb))<0) {
323
324
325
326
327
328
329
330
331 kfree_skb(skb,FREE_WRITE);
332 }
333 return retval;
334 }
335
336 static int
337 ipxitf_demux_socket(ipx_interface *intrfc, struct sk_buff *skb, int copy)
338 {
339 ipx_packet *ipx = (ipx_packet *)(skb->h.raw);
340 ipx_socket *sock1 = NULL, *sock2 = NULL;
341 struct sk_buff *skb1 = NULL, *skb2 = NULL;
342 int ipx_offset;
343
344 sock1 = ipxitf_find_socket(intrfc, ipx->ipx_dest.sock);
345
346
347
348
349
350
351
352
353 if (ipx_primary_net && (intrfc != ipx_primary_net)) {
354 switch (ntohs(ipx->ipx_dest.sock)) {
355 case 0x452:
356 case 0x453:
357 case 0x456:
358
359
360
361
362
363
364 sock2 = ipxitf_find_socket(ipx_primary_net,
365 ipx->ipx_dest.sock);
366 break;
367 default:
368 break;
369 }
370 }
371
372
373 if ((sock1 == NULL) && (sock2 == NULL)) {
374 if (!copy)
375 kfree_skb(skb,FREE_WRITE);
376 return 0;
377 }
378
379 ipx_offset = (char *)(skb->h.raw) - (char *)(skb->data);
380
381
382
383
384
385
386
387 if (copy) {
388 skb1 = skb_clone(skb, GFP_ATOMIC);
389 if (skb1 != NULL) {
390 skb1->h.raw = (unsigned char *)&(skb1->data[ipx_offset]);
391 skb1->arp = skb1->free = 1;
392 }
393 } else {
394 skb1 = skb;
395 }
396
397 if (skb1 == NULL) return -ENOMEM;
398
399
400 if (sock1 && sock2) {
401 skb2 = skb_clone(skb1, GFP_ATOMIC);
402 if (skb2 != NULL) {
403 skb2->h.raw = (unsigned char *)&(skb2->data[ipx_offset]);
404 skb2->arp = skb2->free = 1;
405 }
406 } else {
407 skb2 = skb1;
408 }
409
410 if (sock1) {
411 (void) ipxitf_def_skb_handler(sock1, skb1);
412 }
413
414 if (skb2 == NULL) return -ENOMEM;
415
416 if (sock2) {
417 (void) ipxitf_def_skb_handler(sock2, skb2);
418 }
419
420 return 0;
421 }
422
423 static struct sk_buff *
424 ipxitf_adjust_skbuff(ipx_interface *intrfc, struct sk_buff *skb)
425 {
426 struct sk_buff *skb2;
427 int in_offset = skb->h.raw - skb->data;
428 int out_offset = intrfc->if_ipx_offset;
429 char *oldraw;
430 int len;
431
432
433 if (in_offset == out_offset) {
434 return skb;
435 }
436
437
438 if (in_offset > out_offset) {
439 oldraw = skb->h.raw;
440 skb->h.raw = &(skb->data[out_offset]);
441 memmove(skb->h.raw, oldraw, skb->len);
442 skb->len += out_offset;
443 return skb;
444 }
445
446
447 len = skb->len + out_offset;
448 skb2 = alloc_skb(len, GFP_ATOMIC);
449 if (skb2 != NULL) {
450 skb2->h.raw = &(skb2->data[out_offset]);
451 skb2->len = len;
452 skb2->free=1;
453 skb2->arp=1;
454 memcpy(skb2->h.raw, skb->h.raw, skb->len);
455 }
456 kfree_skb(skb, FREE_WRITE);
457 return skb2;
458 }
459
460 static int
461 ipxitf_send(ipx_interface *intrfc, struct sk_buff *skb, char *node)
462 {
463 ipx_packet *ipx = (ipx_packet *)(skb->h.raw);
464 struct device *dev = intrfc->if_dev;
465 struct datalink_proto *dl = intrfc->if_dlink;
466 char dest_node[IPX_NODE_LEN];
467 int send_to_wire = 1;
468
469
470
471
472 if ((dl == NULL) || (dev == NULL) || (dev->flags & IFF_LOOPBACK))
473 send_to_wire = 0;
474
475
476 if (ipx->ipx_dest.net == intrfc->if_netnum) {
477 if (memcmp(intrfc->if_node, node, IPX_NODE_LEN) == 0)
478 return ipxitf_demux_socket(intrfc, skb, 0);
479 if (memcmp(ipx_broadcast_node, node, IPX_NODE_LEN) == 0) {
480 ipxitf_demux_socket(intrfc, skb, send_to_wire);
481 if (!send_to_wire) return 0;
482 }
483 }
484
485
486 if (ipx->ipx_source.net != intrfc->if_netnum) {
487 if (++(ipx->ipx_tctrl) > ipxcfg_max_hops)
488 send_to_wire = 0;
489 }
490
491 if (!send_to_wire) {
492
493
494
495
496
497
498
499
500 kfree_skb(skb,FREE_WRITE);
501 return 0;
502 }
503
504
505 memcpy(dest_node, node, IPX_NODE_LEN);
506
507
508 skb = ipxitf_adjust_skbuff(intrfc, skb);
509 if (skb == NULL) return 0;
510
511
512 skb->dev = dev;
513 dl->datalink_header(dl, skb, dest_node);
514
515 if (skb->sk != NULL) {
516
517
518
519 skb->sk->wmem_alloc += skb->mem_len;
520 }
521
522
523 dev_queue_xmit(skb, dev, SOPRI_NORMAL);
524 return 0;
525 }
526
527 static int
528 ipxrtr_add_route(unsigned long, ipx_interface *, unsigned char *);
529
530 static int
531 ipxitf_add_local_route(ipx_interface *intrfc)
532 {
533 return ipxrtr_add_route(intrfc->if_netnum, intrfc, NULL);
534 }
535
536 static char * ipx_frame_name(unsigned short);
537 static char * ipx_device_name(ipx_interface *);
538 static int ipxrtr_route_skb(struct sk_buff *);
539
540 static int
541 ipxitf_rcv(ipx_interface *intrfc, struct sk_buff *skb)
542 {
543 ipx_packet *ipx = (ipx_packet *) (skb->h.raw);
544 ipx_interface *i;
545
546
547 if ((intrfc->if_netnum == 0L) &&
548 (ipx->ipx_source.net == ipx->ipx_dest.net)) {
549
550
551
552
553 if ((i=ipxitf_find_using_net(ipx->ipx_source.net))==NULL) {
554 intrfc->if_netnum = ipx->ipx_source.net;
555 (void) ipxitf_add_local_route(intrfc);
556 } else {
557 printk("IPX: Network number collision %lx\n\t%s %s and %s %s\n",
558 htonl(ipx->ipx_source.net),
559 ipx_device_name(i),
560 ipx_frame_name(i->if_dlink_type),
561 ipx_device_name(intrfc),
562 ipx_frame_name(intrfc->if_dlink_type));
563 }
564 }
565
566 if (intrfc->if_netnum != ipx->ipx_dest.net) {
567
568 if ((skb->pkt_type != PACKET_BROADCAST) &&
569 (skb->pkt_type != PACKET_MULTICAST))
570 return ipxrtr_route_skb(skb);
571
572 kfree_skb(skb,FREE_READ);
573 return 0;
574 }
575
576
577 if ((memcmp(ipx_broadcast_node, ipx->ipx_dest.node, IPX_NODE_LEN) == 0)
578 || (memcmp(intrfc->if_node, ipx->ipx_dest.node, IPX_NODE_LEN) == 0)) {
579 return ipxitf_demux_socket(intrfc, skb, 0);
580 }
581
582
583 kfree_skb(skb,FREE_READ);
584 return 0;
585 }
586
587 static void
588 ipxitf_insert(ipx_interface *intrfc)
589 {
590 ipx_interface *i;
591
592 intrfc->if_next = NULL;
593 if (ipx_interfaces == NULL) {
594 ipx_interfaces = intrfc;
595 } else {
596 for (i = ipx_interfaces; i->if_next != NULL; i = i->if_next)
597 ;
598 i->if_next = intrfc;
599 }
600
601 if (ipxcfg_auto_select_primary && (ipx_primary_net == NULL))
602 ipx_primary_net = intrfc;
603 }
604
605 static int
606 ipxitf_create_internal(ipx_interface_definition *idef)
607 {
608 ipx_interface *intrfc;
609
610
611 if (ipx_primary_net != NULL) return -EEXIST;
612
613
614 if (idef->ipx_network == 0L) return -EADDRNOTAVAIL;
615 if (ipxitf_find_using_net(idef->ipx_network) != NULL)
616 return -EADDRINUSE;
617
618 intrfc=(ipx_interface *)kmalloc(sizeof(ipx_interface),GFP_ATOMIC);
619 if (intrfc==NULL)
620 return -EAGAIN;
621 intrfc->if_dev=NULL;
622 intrfc->if_netnum=idef->ipx_network;
623 intrfc->if_dlink_type = 0;
624 intrfc->if_dlink = NULL;
625 intrfc->if_sklist = NULL;
626 intrfc->if_internal = 1;
627 intrfc->if_ipx_offset = 0;
628 intrfc->if_sknum = IPX_MIN_EPHEMERAL_SOCKET;
629 memcpy((char *)&(intrfc->if_node), idef->ipx_node, IPX_NODE_LEN);
630 ipx_internal_net = intrfc;
631 ipx_primary_net = intrfc;
632 ipxitf_insert(intrfc);
633 return ipxitf_add_local_route(intrfc);
634 }
635
636 static int
637 ipx_map_frame_type(unsigned char type)
638 {
639 switch (type) {
640 case IPX_FRAME_ETHERII: return htons(ETH_P_IPX);
641 case IPX_FRAME_8022: return htons(ETH_P_802_2);
642 case IPX_FRAME_SNAP: return htons(ETH_P_SNAP);
643 case IPX_FRAME_8023: return htons(ETH_P_802_3);
644 }
645 return 0;
646 }
647
648 static int
649 ipxitf_create(ipx_interface_definition *idef)
650 {
651 struct device *dev;
652 unsigned short dlink_type = 0;
653 struct datalink_proto *datalink = NULL;
654 ipx_interface *intrfc;
655
656 if (idef->ipx_special == IPX_INTERNAL)
657 return ipxitf_create_internal(idef);
658
659 if ((idef->ipx_special == IPX_PRIMARY) && (ipx_primary_net != NULL))
660 return -EEXIST;
661
662 if ((idef->ipx_network != 0L) &&
663 (ipxitf_find_using_net(idef->ipx_network) != NULL))
664 return -EADDRINUSE;
665
666 switch (idef->ipx_dlink_type) {
667 case IPX_FRAME_ETHERII:
668 dlink_type = htons(ETH_P_IPX);
669 datalink = pEII_datalink;
670 break;
671 case IPX_FRAME_8022:
672 dlink_type = htons(ETH_P_802_2);
673 datalink = p8022_datalink;
674 break;
675 case IPX_FRAME_SNAP:
676 dlink_type = htons(ETH_P_SNAP);
677 datalink = pSNAP_datalink;
678 break;
679 case IPX_FRAME_8023:
680 dlink_type = htons(ETH_P_802_3);
681 datalink = p8023_datalink;
682 break;
683 case IPX_FRAME_NONE:
684 default:
685 break;
686 }
687
688 if (datalink == NULL)
689 return -EPROTONOSUPPORT;
690
691 dev=dev_get(idef->ipx_device);
692 if (dev==NULL)
693 return -ENODEV;
694
695 if (!(dev->flags & IFF_UP))
696 return -ENETDOWN;
697
698
699 if(dev->addr_len>IPX_NODE_LEN)
700 return -EINVAL;
701
702 if(dev->addr_len<2)
703 return -EINVAL;
704
705 if ((intrfc = ipxitf_find_using_phys(dev, dlink_type)) == NULL) {
706
707
708 intrfc=(ipx_interface *)kmalloc(sizeof(ipx_interface),GFP_ATOMIC);
709 if (intrfc==NULL)
710 return -EAGAIN;
711 intrfc->if_dev=dev;
712 intrfc->if_netnum=idef->ipx_network;
713 intrfc->if_dlink_type = dlink_type;
714 intrfc->if_dlink = datalink;
715 intrfc->if_sklist = NULL;
716 intrfc->if_sknum = IPX_MIN_EPHEMERAL_SOCKET;
717
718 if ((idef->ipx_special == IPX_PRIMARY))
719 ipx_primary_net = intrfc;
720 intrfc->if_internal = 0;
721 intrfc->if_ipx_offset = dev->hard_header_len + datalink->header_length;
722 memset(intrfc->if_node, 0, IPX_NODE_LEN);
723 memcpy((char *)&(intrfc->if_node[IPX_NODE_LEN-dev->addr_len]), dev->dev_addr, dev->addr_len);
724
725 ipxitf_insert(intrfc);
726 }
727
728
729 if (intrfc->if_netnum == 0L)
730 return 0;
731
732 return ipxitf_add_local_route(intrfc);
733 }
734
735 static int
736 ipxitf_delete(ipx_interface_definition *idef)
737 {
738 struct device *dev = NULL;
739 unsigned short dlink_type = 0;
740 ipx_interface *intrfc;
741
742 if (idef->ipx_special == IPX_INTERNAL) {
743 if (ipx_internal_net != NULL) {
744 ipxitf_down(ipx_internal_net);
745 return 0;
746 }
747 return -ENOENT;
748 }
749
750 dlink_type = ipx_map_frame_type(idef->ipx_dlink_type);
751 if (dlink_type == 0)
752 return -EPROTONOSUPPORT;
753
754 dev=dev_get(idef->ipx_device);
755 if(dev==NULL) return -ENODEV;
756
757 intrfc = ipxitf_find_using_phys(dev, dlink_type);
758 if (intrfc != NULL) {
759 ipxitf_down(intrfc);
760 return 0;
761 }
762 return -EINVAL;
763 }
764
765 static ipx_interface *
766 ipxitf_auto_create(struct device *dev, unsigned short dlink_type)
767 {
768 struct datalink_proto *datalink = NULL;
769 ipx_interface *intrfc;
770
771 switch (htons(dlink_type)) {
772 case ETH_P_IPX: datalink = pEII_datalink; break;
773 case ETH_P_802_2: datalink = p8022_datalink; break;
774 case ETH_P_SNAP: datalink = pSNAP_datalink; break;
775 case ETH_P_802_3: datalink = p8023_datalink; break;
776 default: return NULL;
777 }
778
779 if (dev == NULL)
780 return NULL;
781
782
783 if(dev->addr_len>IPX_NODE_LEN) return NULL;
784
785 if(dev->addr_len<2) return NULL;
786
787 intrfc=(ipx_interface *)kmalloc(sizeof(ipx_interface),GFP_ATOMIC);
788 if (intrfc!=NULL) {
789 intrfc->if_dev=dev;
790 intrfc->if_netnum=0L;
791 intrfc->if_dlink_type = dlink_type;
792 intrfc->if_dlink = datalink;
793 intrfc->if_sklist = NULL;
794 intrfc->if_internal = 0;
795 intrfc->if_sknum = IPX_MIN_EPHEMERAL_SOCKET;
796 intrfc->if_ipx_offset = dev->hard_header_len +
797 datalink->header_length;
798 memset(intrfc->if_node, 0, IPX_NODE_LEN);
799 memcpy((char *)&(intrfc->if_node[IPX_NODE_LEN-dev->addr_len]),
800 dev->dev_addr, dev->addr_len);
801 ipxitf_insert(intrfc);
802 }
803
804 return intrfc;
805 }
806
807 static int
808 ipxitf_ioctl(unsigned int cmd, void *arg)
809 {
810 int err;
811 switch(cmd)
812 {
813 case SIOCSIFADDR:
814 {
815 struct ifreq ifr;
816 struct sockaddr_ipx *sipx;
817 ipx_interface_definition f;
818 err=verify_area(VERIFY_READ,arg,sizeof(ifr));
819 if(err)
820 return err;
821 memcpy_fromfs(&ifr,arg,sizeof(ifr));
822 sipx=(struct sockaddr_ipx *)&ifr.ifr_addr;
823 if(sipx->sipx_family!=AF_IPX)
824 return -EINVAL;
825 f.ipx_network=sipx->sipx_network;
826 memcpy(f.ipx_device, ifr.ifr_name, sizeof(f.ipx_device));
827 memcpy(f.ipx_node, sipx->sipx_node, IPX_NODE_LEN);
828 f.ipx_dlink_type=sipx->sipx_type;
829 f.ipx_special=sipx->sipx_special;
830 if(sipx->sipx_action==IPX_DLTITF)
831 return ipxitf_delete(&f);
832 else
833 return ipxitf_create(&f);
834 }
835 case SIOCGIFADDR:
836 {
837 struct ifreq ifr;
838 struct sockaddr_ipx *sipx;
839 ipx_interface *ipxif;
840 struct device *dev;
841 err=verify_area(VERIFY_WRITE,arg,sizeof(ifr));
842 if(err)
843 return err;
844 memcpy_fromfs(&ifr,arg,sizeof(ifr));
845 sipx=(struct sockaddr_ipx *)&ifr.ifr_addr;
846 dev=dev_get(ifr.ifr_name);
847 if(!dev)
848 return -ENODEV;
849 ipxif=ipxitf_find_using_phys(dev, ipx_map_frame_type(sipx->sipx_type));
850 if(ipxif==NULL)
851 return -EADDRNOTAVAIL;
852 sipx->sipx_network=ipxif->if_netnum;
853 memcpy(sipx->sipx_node, ipxif->if_node, sizeof(sipx->sipx_node));
854 memcpy_tofs(arg,&ifr,sizeof(ifr));
855 return 0;
856 }
857 case SIOCAIPXITFCRT:
858 err=verify_area(VERIFY_READ,arg,sizeof(char));
859 if(err)
860 return err;
861 return ipxcfg_set_auto_create(get_fs_byte(arg));
862 case SIOCAIPXPRISLT:
863 err=verify_area(VERIFY_READ,arg,sizeof(char));
864 if(err)
865 return err;
866 return ipxcfg_set_auto_select(get_fs_byte(arg));
867 default:
868 return -EINVAL;
869 }
870 }
871
872
873
874
875
876
877
878 static ipx_route *
879 ipxrtr_lookup(unsigned long net)
880 {
881 ipx_route *r;
882
883 for (r=ipx_routes; (r!=NULL) && (r->ir_net!=net); r=r->ir_next)
884 ;
885
886 return r;
887 }
888
889 static int
890 ipxrtr_add_route(unsigned long network, ipx_interface *intrfc, unsigned char *node)
891 {
892 ipx_route *rt;
893
894
895 rt = ipxrtr_lookup(network);
896 if (rt==NULL) {
897 rt=(ipx_route *)kmalloc(sizeof(ipx_route),GFP_ATOMIC);
898 if(rt==NULL)
899 return -EAGAIN;
900 rt->ir_next=ipx_routes;
901 ipx_routes=rt;
902 }
903
904 rt->ir_net = network;
905 rt->ir_intrfc = intrfc;
906 if (node == NULL) {
907 memset(rt->ir_router_node, '\0', IPX_NODE_LEN);
908 rt->ir_routed = 0;
909 } else {
910 memcpy(rt->ir_router_node, node, IPX_NODE_LEN);
911 rt->ir_routed=1;
912 }
913 return 0;
914 }
915
916 static void
917 ipxrtr_del_routes(ipx_interface *intrfc)
918 {
919 ipx_route **r, *tmp;
920
921 for (r = &ipx_routes; (tmp = *r) != NULL; ) {
922 if (tmp->ir_intrfc == intrfc) {
923 *r = tmp->ir_next;
924 kfree_s(tmp, sizeof(ipx_route));
925 } else {
926 r = &(tmp->ir_next);
927 }
928 }
929 }
930
931 static int
932 ipxrtr_create(ipx_route_definition *rd)
933 {
934 ipx_interface *intrfc;
935
936
937 intrfc = ipxitf_find_using_net(rd->ipx_router_network);
938 if (intrfc == NULL)
939 return -ENETUNREACH;
940
941 return ipxrtr_add_route(rd->ipx_network, intrfc, rd->ipx_router_node);
942 }
943
944
945 static int
946 ipxrtr_delete(long net)
947 {
948 ipx_route **r;
949 ipx_route *tmp;
950
951 for (r = &ipx_routes; (tmp = *r) != NULL; ) {
952 if (tmp->ir_net == net) {
953 if (!(tmp->ir_routed)) {
954
955 return -EPERM;
956 }
957 *r = tmp->ir_next;
958 kfree_s(tmp, sizeof(ipx_route));
959 return 0;
960 }
961 r = &(tmp->ir_next);
962 }
963
964 return -ENOENT;
965 }
966
967 static int
968 ipxrtr_route_packet(ipx_socket *sk, struct sockaddr_ipx *usipx, void *ubuf, int len)
969 {
970 struct sk_buff *skb;
971 ipx_interface *intrfc;
972 ipx_packet *ipx;
973 int size;
974 int ipx_offset;
975 ipx_route *rt = NULL;
976
977
978 if ((usipx->sipx_network == 0L) && (ipx_primary_net != NULL)) {
979 usipx->sipx_network = ipx_primary_net->if_netnum;
980 intrfc = ipx_primary_net;
981 } else {
982 rt = ipxrtr_lookup(usipx->sipx_network);
983 if (rt==NULL) {
984 return -ENETUNREACH;
985 }
986 intrfc = rt->ir_intrfc;
987 }
988
989 ipx_offset = intrfc->if_ipx_offset;
990 size=sizeof(ipx_packet)+len;
991 size += ipx_offset;
992
993 if(size+sk->wmem_alloc>sk->sndbuf) return -EAGAIN;
994
995 skb=alloc_skb(size,GFP_KERNEL);
996 if(skb==NULL) return -ENOMEM;
997
998 skb->sk=sk;
999 skb->len=size;
1000 skb->free=1;
1001 skb->arp=1;
1002
1003
1004 ipx=(ipx_packet *)&(skb->data[ipx_offset]);
1005 ipx->ipx_checksum=0xFFFF;
1006 ipx->ipx_pktsize=htons(len+sizeof(ipx_packet));
1007 ipx->ipx_tctrl=0;
1008 ipx->ipx_type=usipx->sipx_type;
1009 skb->h.raw = (unsigned char *)ipx;
1010
1011 ipx->ipx_source.net = sk->ipx_intrfc->if_netnum;
1012 memcpy(ipx->ipx_source.node, sk->ipx_intrfc->if_node, IPX_NODE_LEN);
1013 ipx->ipx_source.sock = sk->ipx_port;
1014 ipx->ipx_dest.net=usipx->sipx_network;
1015 memcpy(ipx->ipx_dest.node,usipx->sipx_node,IPX_NODE_LEN);
1016 ipx->ipx_dest.sock=usipx->sipx_port;
1017
1018 memcpy_fromfs((char *)(ipx+1),ubuf,len);
1019 return ipxitf_send(intrfc, skb, (rt && rt->ir_routed) ?
1020 rt->ir_router_node : ipx->ipx_dest.node);
1021 }
1022
1023 static int
1024 ipxrtr_route_skb(struct sk_buff *skb)
1025 {
1026 ipx_packet *ipx = (ipx_packet *) (skb->h.raw);
1027 ipx_route *r;
1028 ipx_interface *i;
1029
1030 r = ipxrtr_lookup(ipx->ipx_dest.net);
1031 if (r == NULL) {
1032
1033 kfree_skb(skb,FREE_READ);
1034 return 0;
1035 }
1036 i = r->ir_intrfc;
1037 (void)ipxitf_send(i, skb, (r->ir_routed) ?
1038 r->ir_router_node : ipx->ipx_dest.node);
1039 return 0;
1040 }
1041
1042
1043
1044
1045
1046 static int ipxrtr_ioctl(unsigned int cmd, void *arg)
1047 {
1048 int err;
1049 struct rtentry rt;
1050 struct sockaddr_ipx *sg,*st;
1051
1052 err=verify_area(VERIFY_READ,arg,sizeof(rt));
1053 if(err)
1054 return err;
1055
1056 memcpy_fromfs(&rt,arg,sizeof(rt));
1057
1058 sg=(struct sockaddr_ipx *)&rt.rt_gateway;
1059 st=(struct sockaddr_ipx *)&rt.rt_dst;
1060
1061 if(!(rt.rt_flags&RTF_GATEWAY))
1062 return -EINVAL;
1063 if(sg->sipx_family!=AF_IPX)
1064 return -EINVAL;
1065 if(st->sipx_family!=AF_IPX)
1066 return -EINVAL;
1067
1068 switch(cmd)
1069 {
1070 case SIOCDELRT:
1071 return ipxrtr_delete(st->sipx_network);
1072 case SIOCADDRT:
1073 {
1074 struct ipx_route_definition f;
1075 f.ipx_network=st->sipx_network;
1076 f.ipx_router_network=sg->sipx_network;
1077 memcpy(f.ipx_router_node, sg->sipx_node, IPX_NODE_LEN);
1078 return ipxrtr_create(&f);
1079 }
1080 default:
1081 return -EINVAL;
1082 }
1083 }
1084
1085 static char *
1086 ipx_frame_name(unsigned short frame)
1087 {
1088 switch (ntohs(frame)) {
1089 case ETH_P_IPX: return "EtherII";
1090 case ETH_P_802_2: return "802.2";
1091 case ETH_P_SNAP: return "SNAP";
1092 case ETH_P_802_3: return "802.3";
1093 default: return "None";
1094 }
1095 }
1096
1097 static char *
1098 ipx_device_name(ipx_interface *intrfc)
1099 {
1100 return (intrfc->if_internal ? "Internal" :
1101 (intrfc->if_dev ? intrfc->if_dev->name : "Unknown"));
1102 }
1103
1104
1105 int
1106 ipx_get_interface_info(char *buffer, char **start, off_t offset, int length)
1107 {
1108 ipx_interface *i;
1109 int len=0;
1110 off_t pos=0;
1111 off_t begin=0;
1112
1113
1114
1115 len += sprintf (buffer,"%-11s%-15s%-9s%-11s%s\n", "Network",
1116 "Node_Address", "Primary", "Device", "Frame_Type");
1117 for (i = ipx_interfaces; i != NULL; i = i->if_next) {
1118 len += sprintf(buffer+len, "%08lX ", ntohl(i->if_netnum));
1119 len += sprintf (buffer+len,"%02X%02X%02X%02X%02X%02X ",
1120 i->if_node[0], i->if_node[1], i->if_node[2],
1121 i->if_node[3], i->if_node[4], i->if_node[5]);
1122 len += sprintf(buffer+len, "%-9s", (i == ipx_primary_net) ?
1123 "Yes" : "No");
1124 len += sprintf (buffer+len, "%-11s", ipx_device_name(i));
1125 len += sprintf (buffer+len, "%s\n",
1126 ipx_frame_name(i->if_dlink_type));
1127
1128
1129 pos=begin+len;
1130
1131 if(pos<offset) {
1132 len=0;
1133 begin=pos;
1134 }
1135 if(pos>offset+length)
1136 break;
1137 }
1138
1139
1140 *start=buffer+(offset-begin);
1141 len-=(offset-begin);
1142 if(len>length)
1143 len=length;
1144
1145 return len;
1146 }
1147
1148 int
1149 ipx_get_info(char *buffer, char **start, off_t offset, int length)
1150 {
1151 ipx_socket *s;
1152 ipx_interface *i;
1153 int len=0;
1154 off_t pos=0;
1155 off_t begin=0;
1156
1157
1158
1159 len += sprintf (buffer,"%-15s%-28s%-10s%-10s%-7s%s\n", "Local_Address",
1160 "Remote_Address", "Tx_Queue", "Rx_Queue",
1161 "State", "Uid");
1162 for (i = ipx_interfaces; i != NULL; i = i->if_next) {
1163 for (s = i->if_sklist; s != NULL; s = s->next) {
1164 len += sprintf (buffer+len,"%08lX:%04X ",
1165 htonl(i->if_netnum),
1166 htons(s->ipx_port));
1167 if (s->state!=TCP_ESTABLISHED) {
1168 len += sprintf(buffer+len, "%-28s", "Not_Connected");
1169 } else {
1170 len += sprintf (buffer+len,
1171 "%08lX:%02X%02X%02X%02X%02X%02X:%04X ",
1172 htonl(s->ipx_dest_addr.net),
1173 s->ipx_dest_addr.node[0], s->ipx_dest_addr.node[1],
1174 s->ipx_dest_addr.node[2], s->ipx_dest_addr.node[3],
1175 s->ipx_dest_addr.node[4], s->ipx_dest_addr.node[5],
1176 htons(s->ipx_dest_addr.sock));
1177 }
1178 len += sprintf (buffer+len,"%08lX %08lX ",
1179 s->wmem_alloc, s->rmem_alloc);
1180 len += sprintf (buffer+len,"%02X %03d\n",
1181 s->state, SOCK_INODE(s->socket)->i_uid);
1182
1183
1184 pos=begin+len;
1185
1186 if(pos<offset)
1187 {
1188 len=0;
1189 begin=pos;
1190 }
1191 if(pos>offset+length)
1192 break;
1193 }
1194 }
1195
1196
1197 *start=buffer+(offset-begin);
1198 len-=(offset-begin);
1199 if(len>length)
1200 len=length;
1201
1202 return len;
1203 }
1204
1205 int ipx_rt_get_info(char *buffer, char **start, off_t offset, int length)
1206 {
1207 ipx_route *rt;
1208 int len=0;
1209 off_t pos=0;
1210 off_t begin=0;
1211
1212 len += sprintf (buffer,"%-11s%-13s%s\n",
1213 "Network", "Router_Net", "Router_Node");
1214 for (rt = ipx_routes; rt != NULL; rt = rt->ir_next)
1215 {
1216 len += sprintf (buffer+len,"%08lX ", ntohl(rt->ir_net));
1217 if (rt->ir_routed) {
1218 len += sprintf (buffer+len,"%08lX %02X%02X%02X%02X%02X%02X\n",
1219 ntohl(rt->ir_intrfc->if_netnum),
1220 rt->ir_router_node[0], rt->ir_router_node[1],
1221 rt->ir_router_node[2], rt->ir_router_node[3],
1222 rt->ir_router_node[4], rt->ir_router_node[5]);
1223 } else {
1224 len += sprintf (buffer+len, "%-13s%s\n",
1225 "Directly", "Connected");
1226 }
1227 pos=begin+len;
1228 if(pos<offset)
1229 {
1230 len=0;
1231 begin=pos;
1232 }
1233 if(pos>offset+length)
1234 break;
1235 }
1236 *start=buffer+(offset-begin);
1237 len-=(offset-begin);
1238 if(len>length)
1239 len=length;
1240 return len;
1241 }
1242
1243
1244
1245
1246
1247
1248
1249 static int ipx_fcntl(struct socket *sock, unsigned int cmd, unsigned long arg)
1250 {
1251 switch(cmd)
1252 {
1253 default:
1254 return(-EINVAL);
1255 }
1256 }
1257
1258 static int ipx_setsockopt(struct socket *sock, int level, int optname, char *optval, int optlen)
1259 {
1260 ipx_socket *sk;
1261 int err,opt;
1262
1263 sk=(ipx_socket *)sock->data;
1264
1265 if(optval==NULL)
1266 return(-EINVAL);
1267
1268 err=verify_area(VERIFY_READ,optval,sizeof(int));
1269 if(err)
1270 return err;
1271 opt=get_fs_long((unsigned long *)optval);
1272
1273 switch(level)
1274 {
1275 case SOL_IPX:
1276 switch(optname)
1277 {
1278 case IPX_TYPE:
1279 if(!suser())
1280 return(-EPERM);
1281 sk->ipx_type=opt;
1282 return 0;
1283 default:
1284 return -EOPNOTSUPP;
1285 }
1286 break;
1287
1288 case SOL_SOCKET:
1289 return sock_setsockopt(sk,level,optname,optval,optlen);
1290
1291 default:
1292 return -EOPNOTSUPP;
1293 }
1294 }
1295
1296 static int ipx_getsockopt(struct socket *sock, int level, int optname,
1297 char *optval, int *optlen)
1298 {
1299 ipx_socket *sk;
1300 int val=0;
1301 int err;
1302
1303 sk=(ipx_socket *)sock->data;
1304
1305 switch(level)
1306 {
1307
1308 case SOL_IPX:
1309 switch(optname)
1310 {
1311 case IPX_TYPE:
1312 val=sk->ipx_type;
1313 break;
1314 default:
1315 return -ENOPROTOOPT;
1316 }
1317 break;
1318
1319 case SOL_SOCKET:
1320 return sock_getsockopt(sk,level,optname,optval,optlen);
1321
1322 default:
1323 return -EOPNOTSUPP;
1324 }
1325 err=verify_area(VERIFY_WRITE,optlen,sizeof(int));
1326 if(err)
1327 return err;
1328 put_fs_long(sizeof(int),(unsigned long *)optlen);
1329 err=verify_area(VERIFY_WRITE,optval,sizeof(int));
1330 put_fs_long(val,(unsigned long *)optval);
1331 return(0);
1332 }
1333
1334 static int ipx_listen(struct socket *sock, int backlog)
1335 {
1336 return -EOPNOTSUPP;
1337 }
1338
1339 static void def_callback1(struct sock *sk)
1340 {
1341 if(!sk->dead)
1342 wake_up_interruptible(sk->sleep);
1343 }
1344
1345 static void def_callback2(struct sock *sk, int len)
1346 {
1347 if(!sk->dead)
1348 {
1349 wake_up_interruptible(sk->sleep);
1350 sock_wake_async(sk->socket, 1);
1351 }
1352 }
1353
1354 static int
1355 ipx_create(struct socket *sock, int protocol)
1356 {
1357 ipx_socket *sk;
1358 sk=(ipx_socket *)kmalloc(sizeof(*sk),GFP_KERNEL);
1359 if(sk==NULL)
1360 return(-ENOMEM);
1361 switch(sock->type)
1362 {
1363 case SOCK_DGRAM:
1364 break;
1365 default:
1366 kfree_s((void *)sk,sizeof(*sk));
1367 return(-ESOCKTNOSUPPORT);
1368 }
1369 sk->dead=0;
1370 sk->next=NULL;
1371 sk->broadcast=0;
1372 sk->rcvbuf=SK_RMEM_MAX;
1373 sk->sndbuf=SK_WMEM_MAX;
1374 sk->wmem_alloc=0;
1375 sk->rmem_alloc=0;
1376 sk->inuse=0;
1377 sk->shutdown=0;
1378 sk->prot=NULL;
1379 sk->broadcast=0;
1380 sk->err=0;
1381 skb_queue_head_init(&sk->receive_queue);
1382 skb_queue_head_init(&sk->write_queue);
1383 sk->send_head=NULL;
1384 skb_queue_head_init(&sk->back_log);
1385 sk->state=TCP_CLOSE;
1386 sk->socket=sock;
1387 sk->type=sock->type;
1388 sk->ipx_type=0;
1389 sk->debug=0;
1390 sk->ipx_intrfc = NULL;
1391 memset(&sk->ipx_dest_addr,'\0',sizeof(sk->ipx_dest_addr));
1392 sk->ipx_port = 0;
1393 sk->mtu=IPX_MTU;
1394
1395 if(sock!=NULL)
1396 {
1397 sock->data=(void *)sk;
1398 sk->sleep=sock->wait;
1399 }
1400
1401 sk->state_change=def_callback1;
1402 sk->data_ready=def_callback2;
1403 sk->write_space=def_callback1;
1404 sk->error_report=def_callback1;
1405
1406 sk->zapped=1;
1407 return 0;
1408 }
1409
1410 static int ipx_release(struct socket *sock, struct socket *peer)
1411 {
1412 ipx_socket *sk=(ipx_socket *)sock->data;
1413 if(sk==NULL)
1414 return(0);
1415 if(!sk->dead)
1416 sk->state_change(sk);
1417 sk->dead=1;
1418 sock->data=NULL;
1419 ipx_destroy_socket(sk);
1420 return(0);
1421 }
1422
1423 static int ipx_dup(struct socket *newsock,struct socket *oldsock)
1424 {
1425 return(ipx_create(newsock,SOCK_DGRAM));
1426 }
1427
1428 static unsigned short
1429 ipx_first_free_socketnum(ipx_interface *intrfc)
1430 {
1431 unsigned short socketNum = intrfc->if_sknum;
1432
1433 if (socketNum < IPX_MIN_EPHEMERAL_SOCKET)
1434 socketNum = IPX_MIN_EPHEMERAL_SOCKET;
1435
1436 while (ipxitf_find_socket(intrfc, ntohs(socketNum)) != NULL)
1437 if (socketNum > IPX_MAX_EPHEMERAL_SOCKET)
1438 socketNum = IPX_MIN_EPHEMERAL_SOCKET;
1439 else
1440 socketNum++;
1441
1442 intrfc->if_sknum = socketNum;
1443 return ntohs(socketNum);
1444 }
1445
1446 static int ipx_bind(struct socket *sock, struct sockaddr *uaddr,int addr_len)
1447 {
1448 ipx_socket *sk;
1449 ipx_interface *intrfc;
1450 struct sockaddr_ipx *addr=(struct sockaddr_ipx *)uaddr;
1451
1452 sk=(ipx_socket *)sock->data;
1453
1454 if(sk->zapped==0)
1455 return -EIO;
1456
1457 if(addr_len!=sizeof(struct sockaddr_ipx))
1458 return -EINVAL;
1459
1460 intrfc = ipxitf_find_using_net(addr->sipx_network);
1461 if (intrfc == NULL)
1462 return -EADDRNOTAVAIL;
1463
1464 if (addr->sipx_port == 0) {
1465 addr->sipx_port = ipx_first_free_socketnum(intrfc);
1466 if (addr->sipx_port == 0)
1467 return -EINVAL;
1468 }
1469
1470 if(ntohs(addr->sipx_port)<IPX_MIN_EPHEMERAL_SOCKET && !suser())
1471 return -EPERM;
1472
1473
1474
1475
1476 if(ipxitf_find_socket(intrfc, addr->sipx_port)!=NULL) {
1477 if(sk->debug)
1478 printk("IPX: bind failed because port %X in use.\n",
1479 (int)addr->sipx_port);
1480 return -EADDRINUSE;
1481 }
1482
1483 sk->ipx_port=addr->sipx_port;
1484 ipxitf_insert_socket(intrfc, sk);
1485 sk->zapped=0;
1486 if(sk->debug)
1487 printk("IPX: socket is bound.\n");
1488 return 0;
1489 }
1490
1491 static int ipx_connect(struct socket *sock, struct sockaddr *uaddr,
1492 int addr_len, int flags)
1493 {
1494 ipx_socket *sk=(ipx_socket *)sock->data;
1495 struct sockaddr_ipx *addr;
1496
1497 sk->state = TCP_CLOSE;
1498 sock->state = SS_UNCONNECTED;
1499
1500 if(addr_len!=sizeof(*addr))
1501 return(-EINVAL);
1502 addr=(struct sockaddr_ipx *)uaddr;
1503
1504 if(sk->ipx_port==0)
1505
1506 {
1507 struct sockaddr_ipx uaddr;
1508 int ret;
1509
1510 uaddr.sipx_port = 0;
1511 uaddr.sipx_network = 0L;
1512 ret = ipx_bind (sock, (struct sockaddr *)&uaddr, sizeof(struct sockaddr_ipx));
1513 if (ret != 0) return (ret);
1514 }
1515
1516 if(ipxrtr_lookup(addr->sipx_network)==NULL)
1517 return -ENETUNREACH;
1518 sk->ipx_dest_addr.net=addr->sipx_network;
1519 sk->ipx_dest_addr.sock=addr->sipx_port;
1520 memcpy(sk->ipx_dest_addr.node,addr->sipx_node,IPX_NODE_LEN);
1521 sk->ipx_type=addr->sipx_type;
1522 sock->state = SS_CONNECTED;
1523 sk->state=TCP_ESTABLISHED;
1524 return 0;
1525 }
1526
1527 static int ipx_socketpair(struct socket *sock1, struct socket *sock2)
1528 {
1529 return(-EOPNOTSUPP);
1530 }
1531
1532 static int ipx_accept(struct socket *sock, struct socket *newsock, int flags)
1533 {
1534 if(newsock->data)
1535 kfree_s(newsock->data,sizeof(ipx_socket));
1536 return -EOPNOTSUPP;
1537 }
1538
1539 static int ipx_getname(struct socket *sock, struct sockaddr *uaddr,
1540 int *uaddr_len, int peer)
1541 {
1542 ipx_address *addr;
1543 struct sockaddr_ipx sipx;
1544 ipx_socket *sk;
1545
1546 sk=(ipx_socket *)sock->data;
1547
1548 *uaddr_len = sizeof(struct sockaddr_ipx);
1549
1550 if(peer) {
1551 if(sk->state!=TCP_ESTABLISHED)
1552 return -ENOTCONN;
1553 addr=&sk->ipx_dest_addr;
1554 sipx.sipx_network = addr->net;
1555 memcpy(sipx.sipx_node,addr->node,IPX_NODE_LEN);
1556 sipx.sipx_port = addr->sock;
1557 } else {
1558 if (sk->ipx_intrfc != NULL) {
1559 sipx.sipx_network = sk->ipx_intrfc->if_netnum;
1560 memcpy(sipx.sipx_node, sk->ipx_intrfc->if_node,
1561 IPX_NODE_LEN);
1562 } else {
1563 sipx.sipx_network = 0L;
1564 memset(sipx.sipx_node, '\0', IPX_NODE_LEN);
1565 }
1566 sipx.sipx_port = sk->ipx_port;
1567 }
1568
1569 sipx.sipx_family = AF_IPX;
1570 sipx.sipx_type = sk->ipx_type;
1571 memcpy(uaddr,&sipx,sizeof(sipx));
1572 return 0;
1573 }
1574
1575 #if 0
1576
1577
1578
1579 void dump_data(char *str,unsigned char *d) {
1580 static char h2c[] = "0123456789ABCDEF";
1581 int l,i;
1582 char *p, b[64];
1583 for (l=0;l<16;l++) {
1584 p = b;
1585 for (i=0; i < 8 ; i++) {
1586 *(p++) = h2c[d[i] & 0x0f];
1587 *(p++) = h2c[(d[i] >> 4) & 0x0f];
1588 *(p++) = ' ';
1589 }
1590 *(p++) = '-';
1591 *(p++) = ' ';
1592 for (i=0; i < 8 ; i++) *(p++) = ' '<= d[i] && d[i]<'\177' ? d[i] : '.';
1593 *p = '\000';
1594 d += i;
1595 printk("%s-%04X: %s\n",str,l*8,b);
1596 }
1597 }
1598
1599 void dump_addr(char *str,ipx_address *p) {
1600 printk("%s: %08X:%02X%02X%02X%02X%02X%02X:%04X\n",
1601 str,ntohl(p->net),p->node[0],p->node[1],p->node[2],
1602 p->node[3],p->node[4],p->node[5],ntohs(p->sock));
1603 }
1604
1605 void dump_hdr(char *str,ipx_packet *p) {
1606 printk("%s: CHKSUM=%04X SIZE=%d (%04X) HOPS=%d (%02X) TYPE=%02X\n",
1607 str,p->ipx_checksum,ntohs(p->ipx_pktsize),ntohs(p->ipx_pktsize),
1608 p->ipx_tctrl,p->ipx_tctrl,p->ipx_type);
1609 dump_addr(" IPX-DST",&p->ipx_dest);
1610 dump_addr(" IPX-SRC",&p->ipx_source);
1611 }
1612
1613 void dump_pkt(char *str,ipx_packet *p) {
1614 dump_hdr(str,p);
1615 dump_data(str,(unsigned char *)p);
1616 }
1617 #endif
1618
1619 int ipx_rcv(struct sk_buff *skb, struct device *dev, struct packet_type *pt)
1620 {
1621
1622 ipx_interface *intrfc;
1623 ipx_packet *ipx;
1624
1625 ipx=(ipx_packet *)skb->h.raw;
1626
1627 if(ipx->ipx_checksum!=IPX_NO_CHECKSUM) {
1628
1629
1630
1631 kfree_skb(skb,FREE_READ);
1632 return 0;
1633 }
1634
1635
1636 if(htons(ipx->ipx_pktsize)<sizeof(ipx_packet)) {
1637 kfree_skb(skb,FREE_READ);
1638 return 0;
1639 }
1640
1641
1642 intrfc = ipxitf_find_using_phys(dev, pt->type);
1643 if (intrfc == NULL) {
1644 if (ipxcfg_auto_create_interfaces) {
1645 intrfc = ipxitf_auto_create(dev, pt->type);
1646 }
1647
1648 if (intrfc == NULL) {
1649
1650 kfree_skb(skb,FREE_READ);
1651 return 0;
1652 }
1653 }
1654
1655 return ipxitf_rcv(intrfc, skb);
1656 }
1657
1658 static int ipx_sendto(struct socket *sock, void *ubuf, int len, int noblock,
1659 unsigned flags, struct sockaddr *usip, int addr_len)
1660 {
1661 ipx_socket *sk=(ipx_socket *)sock->data;
1662 struct sockaddr_ipx *usipx=(struct sockaddr_ipx *)usip;
1663 struct sockaddr_ipx local_sipx;
1664 int retval;
1665
1666 if (sk->zapped) return -EIO;
1667 if(flags) return -EINVAL;
1668
1669 if(usipx) {
1670 if(sk->ipx_port == 0) {
1671 struct sockaddr_ipx uaddr;
1672 int ret;
1673
1674 uaddr.sipx_port = 0;
1675 uaddr.sipx_network = 0L;
1676 ret = ipx_bind (sock, (struct sockaddr *)&uaddr, sizeof(struct sockaddr_ipx));
1677 if (ret != 0) return ret;
1678 }
1679
1680 if(addr_len <sizeof(*usipx))
1681 return -EINVAL;
1682 if(usipx->sipx_family != AF_IPX)
1683 return -EINVAL;
1684
1685 if(htons(usipx->sipx_port)<IPX_MIN_EPHEMERAL_SOCKET && !suser())
1686 return -EPERM;
1687 } else {
1688 if(sk->state!=TCP_ESTABLISHED)
1689 return -ENOTCONN;
1690 usipx=&local_sipx;
1691 usipx->sipx_family=AF_IPX;
1692 usipx->sipx_type=sk->ipx_type;
1693 usipx->sipx_port=sk->ipx_dest_addr.sock;
1694 usipx->sipx_network=sk->ipx_dest_addr.net;
1695 memcpy(usipx->sipx_node,sk->ipx_dest_addr.node,IPX_NODE_LEN);
1696 }
1697
1698 retval = ipxrtr_route_packet(sk, usipx, ubuf, len);
1699 if (retval < 0) return retval;
1700
1701 return len;
1702 }
1703
1704 static int ipx_send(struct socket *sock, void *ubuf, int size, int noblock, unsigned flags)
1705 {
1706 return ipx_sendto(sock,ubuf,size,noblock,flags,NULL,0);
1707 }
1708
1709 static int ipx_recvfrom(struct socket *sock, void *ubuf, int size, int noblock,
1710 unsigned flags, struct sockaddr *sip, int *addr_len)
1711 {
1712 ipx_socket *sk=(ipx_socket *)sock->data;
1713 struct sockaddr_ipx *sipx=(struct sockaddr_ipx *)sip;
1714 struct ipx_packet *ipx = NULL;
1715
1716 int copied = 0;
1717 struct sk_buff *skb;
1718 int er;
1719
1720 if(sk->err)
1721 {
1722 er= -sk->err;
1723 sk->err=0;
1724 return er;
1725 }
1726
1727 if (sk->zapped)
1728 return -EIO;
1729
1730 if(addr_len)
1731 *addr_len=sizeof(*sipx);
1732
1733 skb=skb_recv_datagram(sk,flags,noblock,&er);
1734 if(skb==NULL)
1735 return er;
1736
1737 ipx = (ipx_packet *)(skb->h.raw);
1738 copied=ntohs(ipx->ipx_pktsize) - sizeof(ipx_packet);
1739 skb_copy_datagram(skb,sizeof(struct ipx_packet),ubuf,copied);
1740
1741 if(sipx)
1742 {
1743 sipx->sipx_family=AF_IPX;
1744 sipx->sipx_port=ipx->ipx_source.sock;
1745 memcpy(sipx->sipx_node,ipx->ipx_source.node,IPX_NODE_LEN);
1746 sipx->sipx_network=ipx->ipx_source.net;
1747 sipx->sipx_type = ipx->ipx_type;
1748 }
1749 skb_free_datagram(skb);
1750 return(copied);
1751 }
1752
1753 static int ipx_write(struct socket *sock, char *ubuf, int size, int noblock)
1754 {
1755 return ipx_send(sock,ubuf,size,noblock,0);
1756 }
1757
1758
1759 static int ipx_recv(struct socket *sock, void *ubuf, int size , int noblock,
1760 unsigned flags)
1761 {
1762 ipx_socket *sk=(ipx_socket *)sock->data;
1763 if(sk->zapped)
1764 return -ENOTCONN;
1765 return ipx_recvfrom(sock,ubuf,size,noblock,flags,NULL, NULL);
1766 }
1767
1768 static int ipx_read(struct socket *sock, char *ubuf, int size, int noblock)
1769 {
1770 return ipx_recv(sock,ubuf,size,noblock,0);
1771 }
1772
1773
1774 static int ipx_shutdown(struct socket *sk,int how)
1775 {
1776 return -EOPNOTSUPP;
1777 }
1778
1779 static int ipx_select(struct socket *sock , int sel_type, select_table *wait)
1780 {
1781 ipx_socket *sk=(ipx_socket *)sock->data;
1782
1783 return datagram_select(sk,sel_type,wait);
1784 }
1785
1786 static int ipx_ioctl(struct socket *sock,unsigned int cmd, unsigned long arg)
1787 {
1788 int err;
1789 long amount=0;
1790 ipx_socket *sk=(ipx_socket *)sock->data;
1791
1792 switch(cmd)
1793 {
1794 case TIOCOUTQ:
1795 err=verify_area(VERIFY_WRITE,(void *)arg,sizeof(unsigned long));
1796 if(err)
1797 return err;
1798 amount=sk->sndbuf-sk->wmem_alloc;
1799 if(amount<0)
1800 amount=0;
1801 put_fs_long(amount,(unsigned long *)arg);
1802 return 0;
1803 case TIOCINQ:
1804 {
1805 struct sk_buff *skb;
1806
1807 if((skb=skb_peek(&sk->receive_queue))!=NULL)
1808 amount=skb->len;
1809 err=verify_area(VERIFY_WRITE,(void *)arg,sizeof(unsigned long));
1810 put_fs_long(amount,(unsigned long *)arg);
1811 return 0;
1812 }
1813 case SIOCADDRT:
1814 case SIOCDELRT:
1815 if(!suser())
1816 return -EPERM;
1817 return(ipxrtr_ioctl(cmd,(void *)arg));
1818 case SIOCSIFADDR:
1819 case SIOCGIFADDR:
1820 case SIOCAIPXITFCRT:
1821 case SIOCAIPXPRISLT:
1822 if(!suser())
1823 return -EPERM;
1824 return(ipxitf_ioctl(cmd,(void *)arg));
1825 case SIOCIPXCFGDATA:
1826 {
1827 err=verify_area(VERIFY_WRITE,(void *)arg,
1828 sizeof(ipx_config_data));
1829 if(err) return err;
1830 return(ipxcfg_get_config_data((void *)arg));
1831 }
1832 case SIOCGSTAMP:
1833 if (sk)
1834 {
1835 if(sk->stamp.tv_sec==0)
1836 return -ENOENT;
1837 err=verify_area(VERIFY_WRITE,(void *)arg,sizeof(struct timeval));
1838 if(err)
1839 return err;
1840 memcpy_tofs((void *)arg,&sk->stamp,sizeof(struct timeval));
1841 return 0;
1842 }
1843 return -EINVAL;
1844 case SIOCGIFDSTADDR:
1845 case SIOCSIFDSTADDR:
1846 case SIOCGIFBRDADDR:
1847 case SIOCSIFBRDADDR:
1848 case SIOCGIFNETMASK:
1849 case SIOCSIFNETMASK:
1850 return -EINVAL;
1851 default:
1852 return(dev_ioctl(cmd,(void *) arg));
1853 }
1854
1855 return(0);
1856 }
1857
1858 static struct proto_ops ipx_proto_ops = {
1859 AF_IPX,
1860
1861 ipx_create,
1862 ipx_dup,
1863 ipx_release,
1864 ipx_bind,
1865 ipx_connect,
1866 ipx_socketpair,
1867 ipx_accept,
1868 ipx_getname,
1869 ipx_read,
1870 ipx_write,
1871 ipx_select,
1872 ipx_ioctl,
1873 ipx_listen,
1874 ipx_send,
1875 ipx_recv,
1876 ipx_sendto,
1877 ipx_recvfrom,
1878 ipx_shutdown,
1879 ipx_setsockopt,
1880 ipx_getsockopt,
1881 ipx_fcntl,
1882 };
1883
1884
1885
1886 static struct packet_type ipx_8023_packet_type =
1887
1888 {
1889 0,
1890 NULL,
1891 ipx_rcv,
1892 NULL,
1893 NULL,
1894 };
1895
1896 static struct packet_type ipx_dix_packet_type =
1897 {
1898 0,
1899 NULL,
1900 ipx_rcv,
1901 NULL,
1902 NULL,
1903 };
1904
1905 static struct notifier_block ipx_dev_notifier={
1906 ipxitf_device_event,
1907 NULL,
1908 0
1909 };
1910
1911
1912 extern struct datalink_proto *make_EII_client(void);
1913 extern struct datalink_proto *make_8023_client(void);
1914
1915 void ipx_proto_init(struct net_proto *pro)
1916 {
1917 unsigned char val = 0xE0;
1918 unsigned char snapval[5] = { 0x0, 0x0, 0x0, 0x81, 0x37 };
1919
1920 (void) sock_register(ipx_proto_ops.family, &ipx_proto_ops);
1921
1922 pEII_datalink = make_EII_client();
1923 ipx_dix_packet_type.type=htons(ETH_P_IPX);
1924 dev_add_pack(&ipx_dix_packet_type);
1925
1926 p8023_datalink = make_8023_client();
1927 ipx_8023_packet_type.type=htons(ETH_P_802_3);
1928 dev_add_pack(&ipx_8023_packet_type);
1929
1930 if ((p8022_datalink = register_8022_client(val, ipx_rcv)) == NULL)
1931 printk("IPX: Unable to register with 802.2\n");
1932
1933 if ((pSNAP_datalink = register_snap_client(snapval, ipx_rcv)) == NULL)
1934 printk("IPX: Unable to register with SNAP\n");
1935
1936 register_netdevice_notifier(&ipx_dev_notifier);
1937
1938 printk("Swansea University Computer Society IPX 0.29 BETA for NET3.019\n");
1939 printk("IPX Portions Copyright (c) 1995 Caldera, Inc.\n");
1940 }
1941 #endif