2 * SPDX-License-Identifier: BSD-2-Clause-FreeBSD
4 * Copyright (c) 2010 Riccardo Panicucci, Universita` di Pisa
7 * Redistribution and use in source and binary forms, with or without
8 * modification, are permitted provided that the following conditions
10 * 1. Redistributions of source code must retain the above copyright
11 * notice, this list of conditions and the following disclaimer.
12 * 2. Redistributions in binary form must reproduce the above copyright
13 * notice, this list of conditions and the following disclaimer in the
14 * documentation and/or other materials provided with the distribution.
16 * THIS SOFTWARE IS PROVIDED BY THE AUTHOR AND CONTRIBUTORS ``AS IS'' AND
17 * ANY EXPRESS OR IMPLIED WARRANTIES, INCLUDING, BUT NOT LIMITED TO, THE
18 * IMPLIED WARRANTIES OF MERCHANTABILITY AND FITNESS FOR A PARTICULAR PURPOSE
19 * ARE DISCLAIMED. IN NO EVENT SHALL THE AUTHOR OR CONTRIBUTORS BE LIABLE
20 * FOR ANY DIRECT, INDIRECT, INCIDENTAL, SPECIAL, EXEMPLARY, OR CONSEQUENTIAL
21 * DAMAGES (INCLUDING, BUT NOT LIMITED TO, PROCUREMENT OF SUBSTITUTE GOODS
22 * OR SERVICES; LOSS OF USE, DATA, OR PROFITS; OR BUSINESS INTERRUPTION)
23 * HOWEVER CAUSED AND ON ANY THEORY OF LIABILITY, WHETHER IN CONTRACT, STRICT
24 * LIABILITY, OR TORT (INCLUDING NEGLIGENCE OR OTHERWISE) ARISING IN ANY WAY
25 * OUT OF THE USE OF THIS SOFTWARE, EVEN IF ADVISED OF THE POSSIBILITY OF
32 * Binary compatibility support for /sbin/ipfw RELENG_7 and RELENG_8
35 #include "opt_inet6.h"
37 #include <sys/param.h>
38 #include <sys/systm.h>
39 #include <sys/malloc.h>
41 #include <sys/kernel.h>
43 #include <sys/module.h>
46 #include <sys/rwlock.h>
47 #include <sys/socket.h>
48 #include <sys/socketvar.h>
50 #include <sys/taskqueue.h>
51 #include <net/if.h> /* IFNAMSIZ, struct ifaddr, ifq head, lock.h mutex.h */
52 #include <netinet/in.h>
53 #include <netinet/ip_var.h> /* ip_output(), IP_FORWARDING */
54 #include <netinet/ip_fw.h>
55 #include <netinet/ip_dummynet.h>
57 #include <netpfil/ipfw/ip_fw_private.h>
58 #include <netpfil/ipfw/dn_heap.h>
59 #include <netpfil/ipfw/ip_dn_private.h>
61 #include <netpfil/ipfw/dn_aqm.h>
63 #include <netpfil/ipfw/dn_sched.h>
65 /* FREEBSD7.2 ip_dummynet.h r191715*/
67 struct dn_heap_entry7 {
68 int64_t key; /* sorting key. Topmost element is smallest one */
69 void *object; /* object pointer */
75 int offset; /* XXX if > 0 this is the offset of direct ptr to obj */
76 struct dn_heap_entry7 *p; /* really an array of "size" entries */
79 /* Common to 7.2 and 8 */
81 SLIST_ENTRY(dn_flow_set) next; /* linked list in a hash slot */
83 u_short fs_nr ; /* flow_set number */
85 #define DNOLD_HAVE_FLOW_MASK 0x0001
86 #define DNOLD_IS_RED 0x0002
87 #define DNOLD_IS_GENTLE_RED 0x0004
88 #define DNOLD_QSIZE_IS_BYTES 0x0008 /* queue size is measured in bytes */
89 #define DNOLD_NOERROR 0x0010 /* do not report ENOBUFS on drops */
90 #define DNOLD_HAS_PROFILE 0x0020 /* the pipe has a delay profile. */
91 #define DNOLD_IS_PIPE 0x4000
92 #define DNOLD_IS_QUEUE 0x8000
94 struct dn_pipe7 *pipe ; /* pointer to parent pipe */
95 u_short parent_nr ; /* parent pipe#, 0 if local to a pipe */
97 int weight ; /* WFQ queue weight */
98 int qsize ; /* queue size in slots or bytes */
99 int plr ; /* pkt loss rate (2^31-1 means 100%) */
101 struct ipfw_flow_id flow_mask ;
103 /* hash table of queues onto this flow_set */
104 int rq_size ; /* number of slots */
105 int rq_elements ; /* active elements */
106 struct dn_flow_queue7 **rq; /* array of rq_size entries */
108 u_int32_t last_expired ; /* do not expire too frequently */
109 int backlogged ; /* #active queues for this flowset */
113 #define SCALE(x) ( (x) << SCALE_RED )
114 #define SCALE_VAL(x) ( (x) >> SCALE_RED )
115 #define SCALE_MUL(x,y) ( ( (x) * (y) ) >> SCALE_RED )
116 int w_q ; /* queue weight (scaled) */
117 int max_th ; /* maximum threshold for queue (scaled) */
118 int min_th ; /* minimum threshold for queue (scaled) */
119 int max_p ; /* maximum value for p_b (scaled) */
120 u_int c_1 ; /* max_p/(max_th-min_th) (scaled) */
121 u_int c_2 ; /* max_p*min_th/(max_th-min_th) (scaled) */
122 u_int c_3 ; /* for GRED, (1-max_p)/max_th (scaled) */
123 u_int c_4 ; /* for GRED, 1 - 2*max_p (scaled) */
124 u_int * w_q_lookup ; /* lookup table for computing (1-w_q)^t */
125 u_int lookup_depth ; /* depth of lookup table */
126 int lookup_step ; /* granularity inside the lookup table */
127 int lookup_weight ; /* equal to (1-w_q)^t / (1-w_q)^(t+1) */
128 int avg_pkt_size ; /* medium packet size */
129 int max_pkt_size ; /* max packet size */
131 SLIST_HEAD(dn_flow_set_head, dn_flow_set);
133 #define DN_IS_PIPE 0x4000
134 #define DN_IS_QUEUE 0x8000
135 struct dn_flow_queue7 {
136 struct dn_flow_queue7 *next ;
137 struct ipfw_flow_id id ;
139 struct mbuf *head, *tail ; /* queue of packets */
145 u_int64_t tot_pkts ; /* statistics counters */
146 u_int64_t tot_bytes ;
149 int hash_slot ; /* debugging/diagnostic */
152 int avg ; /* average queue length est. (scaled) */
153 int count ; /* arrivals since last RED drop */
154 int random ; /* random value (scaled) */
155 u_int32_t q_time; /* start of queue idle time */
158 struct dn_flow_set *fs ; /* parent flow set */
159 int heap_pos ; /* position (index) of struct in heap */
160 int64_t sched_time ; /* current time when queue enters ready_heap */
162 int64_t S,F ; /* start time, finish time */
165 struct dn_pipe7 { /* a pipe */
166 SLIST_ENTRY(dn_pipe7) next; /* linked list in a hash slot */
168 int pipe_nr ; /* number */
169 int bandwidth; /* really, bytes/tick. */
170 int delay ; /* really, ticks */
172 struct mbuf *head, *tail ; /* packets in delay line */
175 struct dn_heap7 scheduler_heap ; /* top extract - key Finish time*/
176 struct dn_heap7 not_eligible_heap; /* top extract- key Start time */
177 struct dn_heap7 idle_heap ; /* random extract - key Start=Finish time */
179 int64_t V ; /* virtual time */
180 int sum; /* sum of weights of all active sessions */
184 int64_t sched_time ; /* time pipe was scheduled in ready_heap */
187 * When the tx clock come from an interface (if_name[0] != '\0'), its name
188 * is stored below, whereas the ifp is filled when the rule is configured.
190 char if_name[IFNAMSIZ];
192 int ready ; /* set if ifp != NULL and we got a signal from it */
194 struct dn_flow_set fs ; /* used with fixed-rate flows */
196 SLIST_HEAD(dn_pipe_head7, dn_pipe7);
198 /* FREEBSD8 ip_dummynet.h r196045 */
199 struct dn_flow_queue8 {
200 struct dn_flow_queue8 *next ;
201 struct ipfw_flow_id id ;
203 struct mbuf *head, *tail ; /* queue of packets */
207 uint64_t numbytes ; /* credit for transmission (dynamic queues) */
208 int64_t extra_bits; /* extra bits simulating unavailable channel */
210 u_int64_t tot_pkts ; /* statistics counters */
211 u_int64_t tot_bytes ;
214 int hash_slot ; /* debugging/diagnostic */
217 int avg ; /* average queue length est. (scaled) */
218 int count ; /* arrivals since last RED drop */
219 int random ; /* random value (scaled) */
220 int64_t idle_time; /* start of queue idle time */
223 struct dn_flow_set *fs ; /* parent flow set */
224 int heap_pos ; /* position (index) of struct in heap */
225 int64_t sched_time ; /* current time when queue enters ready_heap */
227 int64_t S,F ; /* start time, finish time */
230 struct dn_pipe8 { /* a pipe */
231 SLIST_ENTRY(dn_pipe8) next; /* linked list in a hash slot */
233 int pipe_nr ; /* number */
234 int bandwidth; /* really, bytes/tick. */
235 int delay ; /* really, ticks */
237 struct mbuf *head, *tail ; /* packets in delay line */
240 struct dn_heap7 scheduler_heap ; /* top extract - key Finish time*/
241 struct dn_heap7 not_eligible_heap; /* top extract- key Start time */
242 struct dn_heap7 idle_heap ; /* random extract - key Start=Finish time */
244 int64_t V ; /* virtual time */
245 int sum; /* sum of weights of all active sessions */
247 /* Same as in dn_flow_queue, numbytes can become large */
248 int64_t numbytes; /* bits I can transmit (more or less). */
249 uint64_t burst; /* burst size, scaled: bits * hz */
251 int64_t sched_time ; /* time pipe was scheduled in ready_heap */
252 int64_t idle_time; /* start of pipe idle time */
254 char if_name[IFNAMSIZ];
256 int ready ; /* set if ifp != NULL and we got a signal from it */
258 struct dn_flow_set fs ; /* used with fixed-rate flows */
260 /* fields to simulate a delay profile */
261 #define ED_MAX_NAME_LEN 32
262 char name[ED_MAX_NAME_LEN];
268 #define ED_MAX_SAMPLES_NO 1024
269 struct dn_pipe_max8 {
270 struct dn_pipe8 pipe;
271 int samples[ED_MAX_SAMPLES_NO];
273 SLIST_HEAD(dn_pipe_head8, dn_pipe8);
276 * Changes from 7.2 to 8:
278 * numbytes from int to int64_t
279 * add burst (int64_t)
280 * add idle_time (int64_t)
282 * add struct dn_pipe_max
283 * add flag DN_HAS_PROFILE
286 * numbytes from u_long to int64_t
287 * add extra_bits (int64_t)
288 * q_time from u_int32_t to int64_t and name idle_time
290 * dn_flow_set unchanged
294 /* NOTE:XXX copied from dummynet.c */
295 #define O_NEXT(p, len) ((void *)((char *)p + len))
297 oid_fill(struct dn_id *oid, int len, int type, uintptr_t id)
304 /* make room in the buffer and move the pointer forward */
306 o_next(struct dn_id **o, int len, int type)
308 struct dn_id *ret = *o;
309 oid_fill(ret, len, type, 0);
310 *o = O_NEXT(*o, len);
314 static size_t pipesize7 = sizeof(struct dn_pipe7);
315 static size_t pipesize8 = sizeof(struct dn_pipe8);
316 static size_t pipesizemax8 = sizeof(struct dn_pipe_max8);
318 /* Indicate 'ipfw' version
319 * 1: from FreeBSD 7.2
321 * -1: unknown (for now is unused)
323 * It is update when a IP_DUMMYNET_DEL or IP_DUMMYNET_CONFIGURE request arrives
324 * NOTE: if a IP_DUMMYNET_GET arrives and the 'ipfw' version is unknown,
325 * it is suppose to be the FreeBSD 8 version.
330 convertflags2new(int src)
334 if (src & DNOLD_HAVE_FLOW_MASK)
336 if (src & DNOLD_QSIZE_IS_BYTES)
337 dst |= DN_QSIZE_BYTES;
338 if (src & DNOLD_NOERROR)
340 if (src & DNOLD_IS_RED)
342 if (src & DNOLD_IS_GENTLE_RED)
343 dst |= DN_IS_GENTLE_RED;
344 if (src & DNOLD_HAS_PROFILE)
345 dst |= DN_HAS_PROFILE;
351 convertflags2old(int src)
355 if (src & DN_HAVE_MASK)
356 dst |= DNOLD_HAVE_FLOW_MASK;
359 if (src & DN_IS_GENTLE_RED)
360 dst |= DNOLD_IS_GENTLE_RED;
361 if (src & DN_NOERROR)
362 dst |= DNOLD_NOERROR;
363 if (src & DN_HAS_PROFILE)
364 dst |= DNOLD_HAS_PROFILE;
365 if (src & DN_QSIZE_BYTES)
366 dst |= DNOLD_QSIZE_IS_BYTES;
372 dn_compat_del(void *v)
374 struct dn_pipe7 *p = (struct dn_pipe7 *) v;
375 struct dn_pipe8 *p8 = (struct dn_pipe8 *) v;
378 uintptr_t a[1]; /* add more if we want a list */
381 /* XXX DN_API_VERSION ??? */
382 oid_fill((void *)&cmd, sizeof(cmd), DN_CMD_DELETE, DN_API_VERSION);
385 if (p->pipe_nr == 0 && p->fs.fs_nr == 0)
387 if (p->pipe_nr != 0 && p->fs.fs_nr != 0)
390 if (p8->pipe_nr == 0 && p8->fs.fs_nr == 0)
392 if (p8->pipe_nr != 0 && p8->fs.fs_nr != 0)
396 if (p->pipe_nr != 0) { /* pipe x delete */
397 cmd.a[0] = p->pipe_nr;
398 cmd.oid.subtype = DN_LINK;
399 } else { /* queue x delete */
400 cmd.oid.subtype = DN_FS;
401 cmd.a[0] = (is7) ? p->fs.fs_nr : p8->fs.fs_nr;
404 return do_config(&cmd, cmd.oid.len);
408 dn_compat_config_queue(struct dn_fs *fs, void* v)
410 struct dn_pipe7 *p7 = (struct dn_pipe7 *)v;
411 struct dn_pipe8 *p8 = (struct dn_pipe8 *)v;
412 struct dn_flow_set *f;
419 fs->fs_nr = f->fs_nr;
420 fs->sched_nr = f->parent_nr;
421 fs->flow_mask = f->flow_mask;
422 fs->buckets = f->rq_size;
423 fs->qsize = f->qsize;
425 fs->par[0] = f->weight;
426 fs->flags = convertflags2new(f->flags_fs);
427 if (fs->flags & DN_IS_GENTLE_RED || fs->flags & DN_IS_RED) {
429 fs->max_th = f->max_th;
430 fs->min_th = f->min_th;
431 fs->max_p = f->max_p;
438 dn_compat_config_pipe(struct dn_sch *sch, struct dn_link *p,
439 struct dn_fs *fs, void* v)
441 struct dn_pipe7 *p7 = (struct dn_pipe7 *)v;
442 struct dn_pipe8 *p8 = (struct dn_pipe8 *)v;
446 sch->oid.subtype = 0;
448 fs->fs_nr = i + 2*DN_MAX_ID;
449 fs->sched_nr = i + DN_MAX_ID;
451 /* Common to 7 and 8 */
452 p->bandwidth = p7->bandwidth;
453 p->delay = p7->delay;
455 /* FreeBSD 8 has burst */
456 p->burst = p8->burst;
459 /* fill the fifo flowset */
460 dn_compat_config_queue(fs, v);
461 fs->fs_nr = i + 2*DN_MAX_ID;
462 fs->sched_nr = i + DN_MAX_ID;
464 /* Move scheduler related parameter from fs to sch */
465 sch->buckets = fs->buckets; /*XXX*/
467 if (fs->flags & DN_HAVE_MASK) {
468 sch->flags |= DN_HAVE_MASK;
469 fs->flags &= ~DN_HAVE_MASK;
470 sch->sched_mask = fs->flow_mask;
471 bzero(&fs->flow_mask, sizeof(struct ipfw_flow_id));
478 dn_compat_config_profile(struct dn_profile *pf, struct dn_link *p,
481 struct dn_pipe8 *p8 = (struct dn_pipe8 *)v;
483 p8->samples = &(((struct dn_pipe_max8 *)p8)->samples[0]);
485 pf->link_nr = p->link_nr;
486 pf->loss_level = p8->loss_level;
487 // pf->bandwidth = p->bandwidth; //XXX bandwidth redundant?
488 pf->samples_no = p8->samples_no;
489 strncpy(pf->name, p8->name,sizeof(pf->name));
490 bcopy(p8->samples, pf->samples, sizeof(pf->samples));
496 * If p->pipe_nr != 0 the command is 'pipe x config', so need to create
497 * the three main struct, else only a flowset is created
500 dn_compat_configure(void *v)
502 struct dn_id *buf = NULL, *base;
503 struct dn_sch *sch = NULL;
504 struct dn_link *p = NULL;
505 struct dn_fs *fs = NULL;
506 struct dn_profile *pf = NULL;
510 struct dn_pipe7 *p7 = (struct dn_pipe7 *)v;
511 struct dn_pipe8 *p8 = (struct dn_pipe8 *)v;
513 int i; /* number of object to configure */
515 lmax = sizeof(struct dn_id); /* command header */
516 lmax += sizeof(struct dn_sch) + sizeof(struct dn_link) +
517 sizeof(struct dn_fs) + sizeof(struct dn_profile);
519 base = buf = malloc(lmax, M_DUMMYNET, M_WAITOK|M_ZERO);
520 o_next(&buf, sizeof(struct dn_id), DN_CMD_CONFIG);
521 base->id = DN_API_VERSION;
523 /* pipe_nr is the same in p7 and p8 */
525 if (i != 0) { /* pipe config */
526 sch = o_next(&buf, sizeof(*sch), DN_SCH);
527 p = o_next(&buf, sizeof(*p), DN_LINK);
528 fs = o_next(&buf, sizeof(*fs), DN_FS);
530 error = dn_compat_config_pipe(sch, p, fs, v);
532 free(buf, M_DUMMYNET);
535 if (!is7 && p8->samples_no > 0) {
537 pf = o_next(&buf, sizeof(*pf), DN_PROFILE);
538 error = dn_compat_config_profile(pf, p, v);
540 free(buf, M_DUMMYNET);
544 } else { /* queue config */
545 fs = o_next(&buf, sizeof(*fs), DN_FS);
546 error = dn_compat_config_queue(fs, v);
548 free(buf, M_DUMMYNET);
552 error = do_config(base, (char *)buf - (char *)base);
555 free(buf, M_DUMMYNET);
560 dn_compat_calc_size(void)
563 /* XXX use FreeBSD 8 struct size */
565 * - half scheduler: schk_count/2
566 * - all flowset: fsk_count
567 * - all flowset queues: queue_count
568 * - all pipe queue: si_count
570 need += dn_cfg.schk_count * sizeof(struct dn_pipe8) / 2;
571 need += dn_cfg.fsk_count * sizeof(struct dn_flow_set);
572 need += dn_cfg.si_count * sizeof(struct dn_flow_queue8);
573 need += dn_cfg.queue_count * sizeof(struct dn_flow_queue8);
579 dn_c_copy_q (void *_ni, void *arg)
581 struct copy_args *a = arg;
582 struct dn_flow_queue7 *fq7 = (struct dn_flow_queue7 *)*a->start;
583 struct dn_flow_queue8 *fq8 = (struct dn_flow_queue8 *)*a->start;
584 struct dn_flow *ni = (struct dn_flow *)_ni;
587 /* XXX hash slot not set */
588 /* No difference between 7.2/8 */
589 fq7->len = ni->length;
590 fq7->len_bytes = ni->len_bytes;
594 size = sizeof(struct dn_flow_queue7);
595 fq7->tot_pkts = ni->tot_pkts;
596 fq7->tot_bytes = ni->tot_bytes;
597 fq7->drops = ni->drops;
599 size = sizeof(struct dn_flow_queue8);
600 fq8->tot_pkts = ni->tot_pkts;
601 fq8->tot_bytes = ni->tot_bytes;
602 fq8->drops = ni->drops;
610 dn_c_copy_pipe(struct dn_schk *s, struct copy_args *a, int nq)
612 struct dn_link *l = &s->link;
613 struct dn_fsk *f = s->fs;
615 struct dn_pipe7 *pipe7 = (struct dn_pipe7 *)*a->start;
616 struct dn_pipe8 *pipe8 = (struct dn_pipe8 *)*a->start;
617 struct dn_flow_set *fs;
622 size = sizeof(struct dn_pipe7);
625 size = sizeof(struct dn_pipe8);
628 /* These 4 field are the same in pipe7 and pipe8 */
629 pipe7->next.sle_next = (struct dn_pipe7 *)DN_IS_PIPE;
630 pipe7->bandwidth = l->bandwidth;
631 pipe7->delay = l->delay * 1000 / hz;
632 pipe7->pipe_nr = l->link_nr - DN_MAX_ID;
636 struct dn_profile *pf = s->profile;
637 strncpy(pipe8->name, pf->name, sizeof(pf->name));
638 pipe8->loss_level = pf->loss_level;
639 pipe8->samples_no = pf->samples_no;
641 pipe8->burst = div64(l->burst , 8 * hz);
644 fs->flow_mask = s->sch.sched_mask;
645 fs->rq_size = s->sch.buckets ? s->sch.buckets : 1;
647 fs->parent_nr = l->link_nr - DN_MAX_ID;
648 fs->qsize = f->fs.qsize;
651 fs->max_th = f->max_th;
652 fs->min_th = f->min_th;
653 fs->max_p = f->fs.max_p;
654 fs->rq_elements = nq;
656 fs->flags_fs = convertflags2old(f->fs.flags);
663 dn_compat_copy_pipe(struct copy_args *a, void *_o)
665 int have = a->end - *a->start;
667 int pipe_size = sizeof(struct dn_pipe8);
668 int queue_size = sizeof(struct dn_flow_queue8);
669 int n_queue = 0; /* number of queues */
671 struct dn_schk *s = (struct dn_schk *)_o;
672 /* calculate needed space:
674 * - if there are instances, dn_queue * n_instances
676 n_queue = (s->sch.flags & DN_HAVE_MASK ? dn_ht_entries(s->siht) :
678 need = pipe_size + queue_size * n_queue;
680 D("have %d < need %d", have, need);
684 dn_c_copy_pipe(s, a, n_queue);
687 if (s->sch.flags & DN_HAVE_MASK)
688 dn_ht_scan(s->siht, dn_c_copy_q, a);
690 dn_c_copy_q(s->siht, a);
695 dn_c_copy_fs(struct dn_fsk *f, struct copy_args *a, int nq)
697 struct dn_flow_set *fs = (struct dn_flow_set *)*a->start;
699 fs->next.sle_next = (struct dn_flow_set *)DN_IS_QUEUE;
700 fs->fs_nr = f->fs.fs_nr;
701 fs->qsize = f->fs.qsize;
704 fs->max_th = f->max_th;
705 fs->min_th = f->min_th;
706 fs->max_p = f->fs.max_p;
707 fs->flow_mask = f->fs.flow_mask;
708 fs->rq_elements = nq;
709 fs->rq_size = (f->fs.buckets ? f->fs.buckets : 1);
710 fs->parent_nr = f->fs.sched_nr;
711 fs->weight = f->fs.par[0];
713 fs->flags_fs = convertflags2old(f->fs.flags);
714 *a->start += sizeof(struct dn_flow_set);
719 dn_compat_copy_queue(struct copy_args *a, void *_o)
721 int have = a->end - *a->start;
723 int fs_size = sizeof(struct dn_flow_set);
724 int queue_size = sizeof(struct dn_flow_queue8);
726 struct dn_fsk *fs = (struct dn_fsk *)_o;
727 int n_queue = 0; /* number of queues */
729 n_queue = (fs->fs.flags & DN_HAVE_MASK ? dn_ht_entries(fs->qht) :
732 need = fs_size + queue_size * n_queue;
739 dn_c_copy_fs(fs, a, n_queue);
742 if (fs->fs.flags & DN_HAVE_MASK)
743 dn_ht_scan(fs->qht, dn_c_copy_q, a);
745 dn_c_copy_q(fs->qht, a);
751 copy_data_helper_compat(void *_o, void *_arg)
753 struct copy_args *a = _arg;
755 if (a->type == DN_COMPAT_PIPE) {
756 struct dn_schk *s = _o;
757 if (s->sch.oid.subtype != 1 || s->sch.sched_nr <= DN_MAX_ID) {
758 return 0; /* not old type */
760 /* copy pipe parameters, and if instance exists, copy
761 * other parameters and eventually queues.
763 if(dn_compat_copy_pipe(a, _o))
764 return DNHT_SCAN_END;
765 } else if (a->type == DN_COMPAT_QUEUE) {
766 struct dn_fsk *fs = _o;
767 if (fs->fs.fs_nr >= DN_MAX_ID)
769 if (dn_compat_copy_queue(a, _o))
770 return DNHT_SCAN_END;
775 /* Main function to manage old requests */
777 ip_dummynet_compat(struct sockopt *sopt)
783 /* Length of data, used to found ipfw version... */
784 int len = sopt->sopt_valsize;
786 /* len can be 0 if command was dummynet_flush */
787 if (len == pipesize7) {
788 D("setting compatibility with FreeBSD 7.2");
791 else if (len == pipesize8 || len == pipesizemax8) {
792 D("setting compatibility with FreeBSD 8");
796 switch (sopt->sopt_name) {
798 printf("dummynet: -- unknown option %d", sopt->sopt_name);
802 case IP_DUMMYNET_FLUSH:
803 oid_fill(&oid, sizeof(oid), DN_CMD_FLUSH, DN_API_VERSION);
804 do_config(&oid, oid.len);
807 case IP_DUMMYNET_DEL:
808 v = malloc(len, M_TEMP, M_WAITOK);
809 error = sooptcopyin(sopt, v, len, len);
812 error = dn_compat_del(v);
816 case IP_DUMMYNET_CONFIGURE:
817 v = malloc(len, M_TEMP, M_WAITOK);
818 error = sooptcopyin(sopt, v, len, len);
821 error = dn_compat_configure(v);
825 case IP_DUMMYNET_GET: {
828 int original_size = sopt->sopt_valsize;
831 ret = dummynet_get(sopt, &buf);
834 size = sopt->sopt_valsize;
835 sopt->sopt_valsize = original_size;
836 D("size=%d, buf=%p", size, buf);
837 ret = sooptcopyout(sopt, buf, size);
839 printf(" %s ERROR sooptcopyout\n", __FUNCTION__);
841 free(buf, M_DUMMYNET);