1213267Sluigi/*- 2204591Sluigi * Copyright (c) 2010 Riccardo Panicucci, Universita` di Pisa 3204591Sluigi * All rights reserved 4204591Sluigi * 5204591Sluigi * Redistribution and use in source and binary forms, with or without 6204591Sluigi * modification, are permitted provided that the following conditions 7204591Sluigi * are met: 8204591Sluigi * 1. Redistributions of source code must retain the above copyright 9204591Sluigi * notice, this list of conditions and the following disclaimer. 10204591Sluigi * 2. Redistributions in binary form must reproduce the above copyright 11204591Sluigi * notice, this list of conditions and the following disclaimer in the 12204591Sluigi * documentation and/or other materials provided with the distribution. 13204591Sluigi * 14204591Sluigi * THIS SOFTWARE IS PROVIDED BY THE AUTHOR AND CONTRIBUTORS ``AS IS'' AND 15204591Sluigi * ANY EXPRESS OR IMPLIED WARRANTIES, INCLUDING, BUT NOT LIMITED TO, THE 16204591Sluigi * IMPLIED WARRANTIES OF MERCHANTABILITY AND FITNESS FOR A PARTICULAR PURPOSE 17204591Sluigi * ARE DISCLAIMED. IN NO EVENT SHALL THE AUTHOR OR CONTRIBUTORS BE LIABLE 18204591Sluigi * FOR ANY DIRECT, INDIRECT, INCIDENTAL, SPECIAL, EXEMPLARY, OR CONSEQUENTIAL 19204591Sluigi * DAMAGES (INCLUDING, BUT NOT LIMITED TO, PROCUREMENT OF SUBSTITUTE GOODS 20204591Sluigi * OR SERVICES; LOSS OF USE, DATA, OR PROFITS; OR BUSINESS INTERRUPTION) 21204591Sluigi * HOWEVER CAUSED AND ON ANY THEORY OF LIABILITY, WHETHER IN CONTRACT, STRICT 22204591Sluigi * LIABILITY, OR TORT (INCLUDING NEGLIGENCE OR OTHERWISE) ARISING IN ANY WAY 23204591Sluigi * OUT OF THE USE OF THIS SOFTWARE, EVEN IF ADVISED OF THE POSSIBILITY OF 24204591Sluigi * SUCH DAMAGE. 25204591Sluigi */ 26204591Sluigi 27204591Sluigi/* 28204591Sluigi * $FreeBSD$ 29204591Sluigi * 30204591Sluigi * Binary compatibility support for /sbin/ipfw RELENG_7 and RELENG_8 31204591Sluigi */ 32204591Sluigi 33204591Sluigi#include "opt_inet6.h" 34204591Sluigi 35204591Sluigi#include <sys/param.h> 36204591Sluigi#include <sys/systm.h> 37204591Sluigi#include <sys/malloc.h> 38204591Sluigi#include <sys/mbuf.h> 39204591Sluigi#include <sys/kernel.h> 40204591Sluigi#include <sys/lock.h> 41204591Sluigi#include <sys/module.h> 42204591Sluigi#include <sys/priv.h> 43204591Sluigi#include <sys/proc.h> 44204591Sluigi#include <sys/rwlock.h> 45204591Sluigi#include <sys/socket.h> 46204591Sluigi#include <sys/socketvar.h> 47204591Sluigi#include <sys/time.h> 48204591Sluigi#include <sys/taskqueue.h> 49204591Sluigi#include <net/if.h> /* IFNAMSIZ, struct ifaddr, ifq head, lock.h mutex.h */ 50204591Sluigi#include <netinet/in.h> 51204591Sluigi#include <netinet/ip_var.h> /* ip_output(), IP_FORWARDING */ 52204591Sluigi#include <netinet/ip_fw.h> 53204591Sluigi#include <netinet/ip_dummynet.h> 54204591Sluigi 55240494Sglebius#include <netpfil/ipfw/ip_fw_private.h> 56240494Sglebius#include <netpfil/ipfw/dn_heap.h> 57240494Sglebius#include <netpfil/ipfw/ip_dn_private.h> 58240494Sglebius#include <netpfil/ipfw/dn_sched.h> 59240494Sglebius 60204591Sluigi/* FREEBSD7.2 ip_dummynet.h r191715*/ 61204591Sluigi 62204591Sluigistruct dn_heap_entry7 { 63204591Sluigi int64_t key; /* sorting key. Topmost element is smallest one */ 64204591Sluigi void *object; /* object pointer */ 65204591Sluigi}; 66204591Sluigi 67204591Sluigistruct dn_heap7 { 68204591Sluigi int size; 69204591Sluigi int elements; 70204591Sluigi int offset; /* XXX if > 0 this is the offset of direct ptr to obj */ 71204591Sluigi struct dn_heap_entry7 *p; /* really an array of "size" entries */ 72204591Sluigi}; 73204591Sluigi 74204591Sluigi/* Common to 7.2 and 8 */ 75204591Sluigistruct dn_flow_set { 76204591Sluigi SLIST_ENTRY(dn_flow_set) next; /* linked list in a hash slot */ 77204591Sluigi 78204591Sluigi u_short fs_nr ; /* flow_set number */ 79204591Sluigi u_short flags_fs; 80204591Sluigi#define DNOLD_HAVE_FLOW_MASK 0x0001 81204591Sluigi#define DNOLD_IS_RED 0x0002 82204591Sluigi#define DNOLD_IS_GENTLE_RED 0x0004 83204591Sluigi#define DNOLD_QSIZE_IS_BYTES 0x0008 /* queue size is measured in bytes */ 84204591Sluigi#define DNOLD_NOERROR 0x0010 /* do not report ENOBUFS on drops */ 85204591Sluigi#define DNOLD_HAS_PROFILE 0x0020 /* the pipe has a delay profile. */ 86204591Sluigi#define DNOLD_IS_PIPE 0x4000 87204591Sluigi#define DNOLD_IS_QUEUE 0x8000 88204591Sluigi 89204591Sluigi struct dn_pipe7 *pipe ; /* pointer to parent pipe */ 90204591Sluigi u_short parent_nr ; /* parent pipe#, 0 if local to a pipe */ 91204591Sluigi 92204591Sluigi int weight ; /* WFQ queue weight */ 93204591Sluigi int qsize ; /* queue size in slots or bytes */ 94204591Sluigi int plr ; /* pkt loss rate (2^31-1 means 100%) */ 95204591Sluigi 96204591Sluigi struct ipfw_flow_id flow_mask ; 97204591Sluigi 98204591Sluigi /* hash table of queues onto this flow_set */ 99204591Sluigi int rq_size ; /* number of slots */ 100204591Sluigi int rq_elements ; /* active elements */ 101204591Sluigi struct dn_flow_queue7 **rq; /* array of rq_size entries */ 102204591Sluigi 103204591Sluigi u_int32_t last_expired ; /* do not expire too frequently */ 104204591Sluigi int backlogged ; /* #active queues for this flowset */ 105204591Sluigi 106204591Sluigi /* RED parameters */ 107204591Sluigi#define SCALE_RED 16 108204591Sluigi#define SCALE(x) ( (x) << SCALE_RED ) 109204591Sluigi#define SCALE_VAL(x) ( (x) >> SCALE_RED ) 110204591Sluigi#define SCALE_MUL(x,y) ( ( (x) * (y) ) >> SCALE_RED ) 111204591Sluigi int w_q ; /* queue weight (scaled) */ 112204591Sluigi int max_th ; /* maximum threshold for queue (scaled) */ 113204591Sluigi int min_th ; /* minimum threshold for queue (scaled) */ 114204591Sluigi int max_p ; /* maximum value for p_b (scaled) */ 115204591Sluigi u_int c_1 ; /* max_p/(max_th-min_th) (scaled) */ 116204591Sluigi u_int c_2 ; /* max_p*min_th/(max_th-min_th) (scaled) */ 117204591Sluigi u_int c_3 ; /* for GRED, (1-max_p)/max_th (scaled) */ 118204591Sluigi u_int c_4 ; /* for GRED, 1 - 2*max_p (scaled) */ 119204591Sluigi u_int * w_q_lookup ; /* lookup table for computing (1-w_q)^t */ 120204591Sluigi u_int lookup_depth ; /* depth of lookup table */ 121204591Sluigi int lookup_step ; /* granularity inside the lookup table */ 122204591Sluigi int lookup_weight ; /* equal to (1-w_q)^t / (1-w_q)^(t+1) */ 123204591Sluigi int avg_pkt_size ; /* medium packet size */ 124204591Sluigi int max_pkt_size ; /* max packet size */ 125204591Sluigi}; 126204591SluigiSLIST_HEAD(dn_flow_set_head, dn_flow_set); 127204591Sluigi 128204591Sluigi#define DN_IS_PIPE 0x4000 129204591Sluigi#define DN_IS_QUEUE 0x8000 130204591Sluigistruct dn_flow_queue7 { 131204591Sluigi struct dn_flow_queue7 *next ; 132204591Sluigi struct ipfw_flow_id id ; 133204591Sluigi 134204591Sluigi struct mbuf *head, *tail ; /* queue of packets */ 135204591Sluigi u_int len ; 136204591Sluigi u_int len_bytes ; 137204591Sluigi 138204591Sluigi u_long numbytes; 139204591Sluigi 140204591Sluigi u_int64_t tot_pkts ; /* statistics counters */ 141204591Sluigi u_int64_t tot_bytes ; 142204591Sluigi u_int32_t drops ; 143204591Sluigi 144204591Sluigi int hash_slot ; /* debugging/diagnostic */ 145204591Sluigi 146204591Sluigi /* RED parameters */ 147204591Sluigi int avg ; /* average queue length est. (scaled) */ 148204591Sluigi int count ; /* arrivals since last RED drop */ 149204591Sluigi int random ; /* random value (scaled) */ 150204591Sluigi u_int32_t q_time; /* start of queue idle time */ 151204591Sluigi 152204591Sluigi /* WF2Q+ support */ 153204591Sluigi struct dn_flow_set *fs ; /* parent flow set */ 154204591Sluigi int heap_pos ; /* position (index) of struct in heap */ 155204591Sluigi int64_t sched_time ; /* current time when queue enters ready_heap */ 156204591Sluigi 157204591Sluigi int64_t S,F ; /* start time, finish time */ 158204591Sluigi}; 159204591Sluigi 160204591Sluigistruct dn_pipe7 { /* a pipe */ 161204591Sluigi SLIST_ENTRY(dn_pipe7) next; /* linked list in a hash slot */ 162204591Sluigi 163204591Sluigi int pipe_nr ; /* number */ 164204591Sluigi int bandwidth; /* really, bytes/tick. */ 165204591Sluigi int delay ; /* really, ticks */ 166204591Sluigi 167204591Sluigi struct mbuf *head, *tail ; /* packets in delay line */ 168204591Sluigi 169204591Sluigi /* WF2Q+ */ 170204591Sluigi struct dn_heap7 scheduler_heap ; /* top extract - key Finish time*/ 171204591Sluigi struct dn_heap7 not_eligible_heap; /* top extract- key Start time */ 172204591Sluigi struct dn_heap7 idle_heap ; /* random extract - key Start=Finish time */ 173204591Sluigi 174204591Sluigi int64_t V ; /* virtual time */ 175204591Sluigi int sum; /* sum of weights of all active sessions */ 176204591Sluigi 177204591Sluigi int numbytes; 178204591Sluigi 179204591Sluigi int64_t sched_time ; /* time pipe was scheduled in ready_heap */ 180204591Sluigi 181204591Sluigi /* 182204591Sluigi * When the tx clock come from an interface (if_name[0] != '\0'), its name 183204591Sluigi * is stored below, whereas the ifp is filled when the rule is configured. 184204591Sluigi */ 185204591Sluigi char if_name[IFNAMSIZ]; 186204591Sluigi struct ifnet *ifp ; 187204591Sluigi int ready ; /* set if ifp != NULL and we got a signal from it */ 188204591Sluigi 189204591Sluigi struct dn_flow_set fs ; /* used with fixed-rate flows */ 190204591Sluigi}; 191204591SluigiSLIST_HEAD(dn_pipe_head7, dn_pipe7); 192204591Sluigi 193204591Sluigi 194204591Sluigi/* FREEBSD8 ip_dummynet.h r196045 */ 195204591Sluigistruct dn_flow_queue8 { 196204591Sluigi struct dn_flow_queue8 *next ; 197204591Sluigi struct ipfw_flow_id id ; 198204591Sluigi 199204591Sluigi struct mbuf *head, *tail ; /* queue of packets */ 200204591Sluigi u_int len ; 201204591Sluigi u_int len_bytes ; 202204591Sluigi 203204591Sluigi uint64_t numbytes ; /* credit for transmission (dynamic queues) */ 204204591Sluigi int64_t extra_bits; /* extra bits simulating unavailable channel */ 205204591Sluigi 206204591Sluigi u_int64_t tot_pkts ; /* statistics counters */ 207204591Sluigi u_int64_t tot_bytes ; 208204591Sluigi u_int32_t drops ; 209204591Sluigi 210204591Sluigi int hash_slot ; /* debugging/diagnostic */ 211204591Sluigi 212204591Sluigi /* RED parameters */ 213204591Sluigi int avg ; /* average queue length est. (scaled) */ 214204591Sluigi int count ; /* arrivals since last RED drop */ 215204591Sluigi int random ; /* random value (scaled) */ 216204591Sluigi int64_t idle_time; /* start of queue idle time */ 217204591Sluigi 218204591Sluigi /* WF2Q+ support */ 219204591Sluigi struct dn_flow_set *fs ; /* parent flow set */ 220204591Sluigi int heap_pos ; /* position (index) of struct in heap */ 221204591Sluigi int64_t sched_time ; /* current time when queue enters ready_heap */ 222204591Sluigi 223204591Sluigi int64_t S,F ; /* start time, finish time */ 224204591Sluigi}; 225204591Sluigi 226204591Sluigistruct dn_pipe8 { /* a pipe */ 227204591Sluigi SLIST_ENTRY(dn_pipe8) next; /* linked list in a hash slot */ 228204591Sluigi 229204591Sluigi int pipe_nr ; /* number */ 230204591Sluigi int bandwidth; /* really, bytes/tick. */ 231204591Sluigi int delay ; /* really, ticks */ 232204591Sluigi 233204591Sluigi struct mbuf *head, *tail ; /* packets in delay line */ 234204591Sluigi 235204591Sluigi /* WF2Q+ */ 236204591Sluigi struct dn_heap7 scheduler_heap ; /* top extract - key Finish time*/ 237204591Sluigi struct dn_heap7 not_eligible_heap; /* top extract- key Start time */ 238204591Sluigi struct dn_heap7 idle_heap ; /* random extract - key Start=Finish time */ 239204591Sluigi 240204591Sluigi int64_t V ; /* virtual time */ 241204591Sluigi int sum; /* sum of weights of all active sessions */ 242204591Sluigi 243204591Sluigi /* Same as in dn_flow_queue, numbytes can become large */ 244204591Sluigi int64_t numbytes; /* bits I can transmit (more or less). */ 245204591Sluigi uint64_t burst; /* burst size, scaled: bits * hz */ 246204591Sluigi 247204591Sluigi int64_t sched_time ; /* time pipe was scheduled in ready_heap */ 248204591Sluigi int64_t idle_time; /* start of pipe idle time */ 249204591Sluigi 250204591Sluigi char if_name[IFNAMSIZ]; 251204591Sluigi struct ifnet *ifp ; 252204591Sluigi int ready ; /* set if ifp != NULL and we got a signal from it */ 253204591Sluigi 254204591Sluigi struct dn_flow_set fs ; /* used with fixed-rate flows */ 255204591Sluigi 256204591Sluigi /* fields to simulate a delay profile */ 257204591Sluigi#define ED_MAX_NAME_LEN 32 258204591Sluigi char name[ED_MAX_NAME_LEN]; 259204591Sluigi int loss_level; 260204591Sluigi int samples_no; 261204591Sluigi int *samples; 262204591Sluigi}; 263204591Sluigi 264204591Sluigi#define ED_MAX_SAMPLES_NO 1024 265204591Sluigistruct dn_pipe_max8 { 266204591Sluigi struct dn_pipe8 pipe; 267204591Sluigi int samples[ED_MAX_SAMPLES_NO]; 268204591Sluigi}; 269204591SluigiSLIST_HEAD(dn_pipe_head8, dn_pipe8); 270204591Sluigi 271204591Sluigi/* 272204591Sluigi * Changes from 7.2 to 8: 273204591Sluigi * dn_pipe: 274204591Sluigi * numbytes from int to int64_t 275204591Sluigi * add burst (int64_t) 276204591Sluigi * add idle_time (int64_t) 277204591Sluigi * add profile 278204591Sluigi * add struct dn_pipe_max 279204591Sluigi * add flag DN_HAS_PROFILE 280204591Sluigi * 281204591Sluigi * dn_flow_queue 282204591Sluigi * numbytes from u_long to int64_t 283204591Sluigi * add extra_bits (int64_t) 284204591Sluigi * q_time from u_int32_t to int64_t and name idle_time 285204591Sluigi * 286204591Sluigi * dn_flow_set unchanged 287204591Sluigi * 288204591Sluigi */ 289204591Sluigi 290204591Sluigi/* NOTE:XXX copied from dummynet.c */ 291204591Sluigi#define O_NEXT(p, len) ((void *)((char *)p + len)) 292204591Sluigistatic void 293204591Sluigioid_fill(struct dn_id *oid, int len, int type, uintptr_t id) 294204591Sluigi{ 295204591Sluigi oid->len = len; 296204591Sluigi oid->type = type; 297204591Sluigi oid->subtype = 0; 298204591Sluigi oid->id = id; 299204591Sluigi} 300204591Sluigi/* make room in the buffer and move the pointer forward */ 301204591Sluigistatic void * 302204591Sluigio_next(struct dn_id **o, int len, int type) 303204591Sluigi{ 304204591Sluigi struct dn_id *ret = *o; 305204591Sluigi oid_fill(ret, len, type, 0); 306204591Sluigi *o = O_NEXT(*o, len); 307204591Sluigi return ret; 308204591Sluigi} 309204591Sluigi 310204591Sluigi 311204591Sluigistatic size_t pipesize7 = sizeof(struct dn_pipe7); 312204591Sluigistatic size_t pipesize8 = sizeof(struct dn_pipe8); 313204591Sluigistatic size_t pipesizemax8 = sizeof(struct dn_pipe_max8); 314204591Sluigi 315204591Sluigi/* Indicate 'ipfw' version 316204591Sluigi * 1: from FreeBSD 7.2 317204591Sluigi * 0: from FreeBSD 8 318241369Skevlo * -1: unknown (for now is unused) 319204591Sluigi * 320204591Sluigi * It is update when a IP_DUMMYNET_DEL or IP_DUMMYNET_CONFIGURE request arrives 321241369Skevlo * NOTE: if a IP_DUMMYNET_GET arrives and the 'ipfw' version is unknown, 322204591Sluigi * it is suppose to be the FreeBSD 8 version. 323204591Sluigi */ 324204591Sluigistatic int is7 = 0; 325204591Sluigi 326204591Sluigistatic int 327204591Sluigiconvertflags2new(int src) 328204591Sluigi{ 329204591Sluigi int dst = 0; 330204591Sluigi 331204591Sluigi if (src & DNOLD_HAVE_FLOW_MASK) 332204591Sluigi dst |= DN_HAVE_MASK; 333204591Sluigi if (src & DNOLD_QSIZE_IS_BYTES) 334204591Sluigi dst |= DN_QSIZE_BYTES; 335204591Sluigi if (src & DNOLD_NOERROR) 336204591Sluigi dst |= DN_NOERROR; 337204591Sluigi if (src & DNOLD_IS_RED) 338204591Sluigi dst |= DN_IS_RED; 339204591Sluigi if (src & DNOLD_IS_GENTLE_RED) 340204591Sluigi dst |= DN_IS_GENTLE_RED; 341204591Sluigi if (src & DNOLD_HAS_PROFILE) 342204591Sluigi dst |= DN_HAS_PROFILE; 343204591Sluigi 344204591Sluigi return dst; 345204591Sluigi} 346204591Sluigi 347204591Sluigistatic int 348204591Sluigiconvertflags2old(int src) 349204591Sluigi{ 350204591Sluigi int dst = 0; 351204591Sluigi 352204591Sluigi if (src & DN_HAVE_MASK) 353204591Sluigi dst |= DNOLD_HAVE_FLOW_MASK; 354204591Sluigi if (src & DN_IS_RED) 355204591Sluigi dst |= DNOLD_IS_RED; 356204591Sluigi if (src & DN_IS_GENTLE_RED) 357204591Sluigi dst |= DNOLD_IS_GENTLE_RED; 358204591Sluigi if (src & DN_NOERROR) 359204591Sluigi dst |= DNOLD_NOERROR; 360204591Sluigi if (src & DN_HAS_PROFILE) 361204591Sluigi dst |= DNOLD_HAS_PROFILE; 362204591Sluigi if (src & DN_QSIZE_BYTES) 363204591Sluigi dst |= DNOLD_QSIZE_IS_BYTES; 364204591Sluigi 365204591Sluigi return dst; 366204591Sluigi} 367204591Sluigi 368204591Sluigistatic int 369204591Sluigidn_compat_del(void *v) 370204591Sluigi{ 371204591Sluigi struct dn_pipe7 *p = (struct dn_pipe7 *) v; 372204591Sluigi struct dn_pipe8 *p8 = (struct dn_pipe8 *) v; 373204591Sluigi struct { 374204591Sluigi struct dn_id oid; 375204591Sluigi uintptr_t a[1]; /* add more if we want a list */ 376204591Sluigi } cmd; 377204591Sluigi 378204591Sluigi /* XXX DN_API_VERSION ??? */ 379204591Sluigi oid_fill((void *)&cmd, sizeof(cmd), DN_CMD_DELETE, DN_API_VERSION); 380204591Sluigi 381204591Sluigi if (is7) { 382204591Sluigi if (p->pipe_nr == 0 && p->fs.fs_nr == 0) 383204591Sluigi return EINVAL; 384204591Sluigi if (p->pipe_nr != 0 && p->fs.fs_nr != 0) 385204591Sluigi return EINVAL; 386204591Sluigi } else { 387204591Sluigi if (p8->pipe_nr == 0 && p8->fs.fs_nr == 0) 388204591Sluigi return EINVAL; 389204591Sluigi if (p8->pipe_nr != 0 && p8->fs.fs_nr != 0) 390204591Sluigi return EINVAL; 391204591Sluigi } 392204591Sluigi 393204591Sluigi if (p->pipe_nr != 0) { /* pipe x delete */ 394204591Sluigi cmd.a[0] = p->pipe_nr; 395204591Sluigi cmd.oid.subtype = DN_LINK; 396204591Sluigi } else { /* queue x delete */ 397204591Sluigi cmd.oid.subtype = DN_FS; 398204591Sluigi cmd.a[0] = (is7) ? p->fs.fs_nr : p8->fs.fs_nr; 399204591Sluigi } 400204591Sluigi 401204591Sluigi return do_config(&cmd, cmd.oid.len); 402204591Sluigi} 403204591Sluigi 404204591Sluigistatic int 405204591Sluigidn_compat_config_queue(struct dn_fs *fs, void* v) 406204591Sluigi{ 407204591Sluigi struct dn_pipe7 *p7 = (struct dn_pipe7 *)v; 408204591Sluigi struct dn_pipe8 *p8 = (struct dn_pipe8 *)v; 409204591Sluigi struct dn_flow_set *f; 410204591Sluigi 411204591Sluigi if (is7) 412204591Sluigi f = &p7->fs; 413204591Sluigi else 414204591Sluigi f = &p8->fs; 415204591Sluigi 416204591Sluigi fs->fs_nr = f->fs_nr; 417204591Sluigi fs->sched_nr = f->parent_nr; 418204591Sluigi fs->flow_mask = f->flow_mask; 419204591Sluigi fs->buckets = f->rq_size; 420204591Sluigi fs->qsize = f->qsize; 421204591Sluigi fs->plr = f->plr; 422204591Sluigi fs->par[0] = f->weight; 423204591Sluigi fs->flags = convertflags2new(f->flags_fs); 424204591Sluigi if (fs->flags & DN_IS_GENTLE_RED || fs->flags & DN_IS_RED) { 425204591Sluigi fs->w_q = f->w_q; 426204591Sluigi fs->max_th = f->max_th; 427204591Sluigi fs->min_th = f->min_th; 428204591Sluigi fs->max_p = f->max_p; 429204591Sluigi } 430204591Sluigi 431204591Sluigi return 0; 432204591Sluigi} 433204591Sluigi 434204591Sluigistatic int 435204591Sluigidn_compat_config_pipe(struct dn_sch *sch, struct dn_link *p, 436204591Sluigi struct dn_fs *fs, void* v) 437204591Sluigi{ 438204591Sluigi struct dn_pipe7 *p7 = (struct dn_pipe7 *)v; 439204591Sluigi struct dn_pipe8 *p8 = (struct dn_pipe8 *)v; 440204591Sluigi int i = p7->pipe_nr; 441204591Sluigi 442204591Sluigi sch->sched_nr = i; 443204591Sluigi sch->oid.subtype = 0; 444204591Sluigi p->link_nr = i; 445204591Sluigi fs->fs_nr = i + 2*DN_MAX_ID; 446204591Sluigi fs->sched_nr = i + DN_MAX_ID; 447204591Sluigi 448204591Sluigi /* Common to 7 and 8 */ 449204591Sluigi p->bandwidth = p7->bandwidth; 450204591Sluigi p->delay = p7->delay; 451204591Sluigi if (!is7) { 452204591Sluigi /* FreeBSD 8 has burst */ 453204591Sluigi p->burst = p8->burst; 454204591Sluigi } 455204591Sluigi 456204591Sluigi /* fill the fifo flowset */ 457204591Sluigi dn_compat_config_queue(fs, v); 458204591Sluigi fs->fs_nr = i + 2*DN_MAX_ID; 459204591Sluigi fs->sched_nr = i + DN_MAX_ID; 460204591Sluigi 461204591Sluigi /* Move scheduler related parameter from fs to sch */ 462204591Sluigi sch->buckets = fs->buckets; /*XXX*/ 463204591Sluigi fs->buckets = 0; 464204591Sluigi if (fs->flags & DN_HAVE_MASK) { 465204591Sluigi sch->flags |= DN_HAVE_MASK; 466204591Sluigi fs->flags &= ~DN_HAVE_MASK; 467204591Sluigi sch->sched_mask = fs->flow_mask; 468204591Sluigi bzero(&fs->flow_mask, sizeof(struct ipfw_flow_id)); 469204591Sluigi } 470204591Sluigi 471204591Sluigi return 0; 472204591Sluigi} 473204591Sluigi 474204591Sluigistatic int 475204591Sluigidn_compat_config_profile(struct dn_profile *pf, struct dn_link *p, 476204591Sluigi void *v) 477204591Sluigi{ 478204591Sluigi struct dn_pipe8 *p8 = (struct dn_pipe8 *)v; 479204591Sluigi 480204591Sluigi p8->samples = &(((struct dn_pipe_max8 *)p8)->samples[0]); 481204591Sluigi 482204591Sluigi pf->link_nr = p->link_nr; 483204591Sluigi pf->loss_level = p8->loss_level; 484204591Sluigi// pf->bandwidth = p->bandwidth; //XXX bandwidth redundant? 485204591Sluigi pf->samples_no = p8->samples_no; 486204591Sluigi strncpy(pf->name, p8->name,sizeof(pf->name)); 487204591Sluigi bcopy(p8->samples, pf->samples, sizeof(pf->samples)); 488204591Sluigi 489204591Sluigi return 0; 490204591Sluigi} 491204591Sluigi 492204591Sluigi/* 493204591Sluigi * If p->pipe_nr != 0 the command is 'pipe x config', so need to create 494204591Sluigi * the three main struct, else only a flowset is created 495204591Sluigi */ 496204591Sluigistatic int 497204591Sluigidn_compat_configure(void *v) 498204591Sluigi{ 499204954Sluigi struct dn_id *buf = NULL, *base; 500204591Sluigi struct dn_sch *sch = NULL; 501204591Sluigi struct dn_link *p = NULL; 502204591Sluigi struct dn_fs *fs = NULL; 503204591Sluigi struct dn_profile *pf = NULL; 504204591Sluigi int lmax; 505204591Sluigi int error; 506204591Sluigi 507204591Sluigi struct dn_pipe7 *p7 = (struct dn_pipe7 *)v; 508204591Sluigi struct dn_pipe8 *p8 = (struct dn_pipe8 *)v; 509204591Sluigi 510204591Sluigi int i; /* number of object to configure */ 511204591Sluigi 512204591Sluigi lmax = sizeof(struct dn_id); /* command header */ 513204591Sluigi lmax += sizeof(struct dn_sch) + sizeof(struct dn_link) + 514204591Sluigi sizeof(struct dn_fs) + sizeof(struct dn_profile); 515204591Sluigi 516243882Sglebius base = buf = malloc(lmax, M_DUMMYNET, M_WAITOK|M_ZERO); 517204591Sluigi o_next(&buf, sizeof(struct dn_id), DN_CMD_CONFIG); 518204591Sluigi base->id = DN_API_VERSION; 519204591Sluigi 520204591Sluigi /* pipe_nr is the same in p7 and p8 */ 521204591Sluigi i = p7->pipe_nr; 522204591Sluigi if (i != 0) { /* pipe config */ 523204591Sluigi sch = o_next(&buf, sizeof(*sch), DN_SCH); 524204591Sluigi p = o_next(&buf, sizeof(*p), DN_LINK); 525204591Sluigi fs = o_next(&buf, sizeof(*fs), DN_FS); 526204591Sluigi 527204591Sluigi error = dn_compat_config_pipe(sch, p, fs, v); 528204591Sluigi if (error) { 529204591Sluigi free(buf, M_DUMMYNET); 530204591Sluigi return error; 531204591Sluigi } 532204591Sluigi if (!is7 && p8->samples_no > 0) { 533204591Sluigi /* Add profiles*/ 534204591Sluigi pf = o_next(&buf, sizeof(*pf), DN_PROFILE); 535204591Sluigi error = dn_compat_config_profile(pf, p, v); 536204591Sluigi if (error) { 537204591Sluigi free(buf, M_DUMMYNET); 538204591Sluigi return error; 539204591Sluigi } 540204591Sluigi } 541204591Sluigi } else { /* queue config */ 542204591Sluigi fs = o_next(&buf, sizeof(*fs), DN_FS); 543204591Sluigi error = dn_compat_config_queue(fs, v); 544204591Sluigi if (error) { 545204591Sluigi free(buf, M_DUMMYNET); 546204591Sluigi return error; 547204591Sluigi } 548204591Sluigi } 549204591Sluigi error = do_config(base, (char *)buf - (char *)base); 550204591Sluigi 551204954Sluigi if (buf) 552204954Sluigi free(buf, M_DUMMYNET); 553204591Sluigi return error; 554204591Sluigi} 555204591Sluigi 556204591Sluigiint 557206425Sluigidn_compat_calc_size(void) 558204591Sluigi{ 559204591Sluigi int need = 0; 560204591Sluigi /* XXX use FreeBSD 8 struct size */ 561204591Sluigi /* NOTE: 562204591Sluigi * - half scheduler: schk_count/2 563204591Sluigi * - all flowset: fsk_count 564204591Sluigi * - all flowset queues: queue_count 565204591Sluigi * - all pipe queue: si_count 566204591Sluigi */ 567204591Sluigi need += dn_cfg.schk_count * sizeof(struct dn_pipe8) / 2; 568204591Sluigi need += dn_cfg.fsk_count * sizeof(struct dn_flow_set); 569204591Sluigi need += dn_cfg.si_count * sizeof(struct dn_flow_queue8); 570204591Sluigi need += dn_cfg.queue_count * sizeof(struct dn_flow_queue8); 571204591Sluigi 572204591Sluigi return need; 573204591Sluigi} 574204591Sluigi 575204591Sluigiint 576204591Sluigidn_c_copy_q (void *_ni, void *arg) 577204591Sluigi{ 578204591Sluigi struct copy_args *a = arg; 579204591Sluigi struct dn_flow_queue7 *fq7 = (struct dn_flow_queue7 *)*a->start; 580204591Sluigi struct dn_flow_queue8 *fq8 = (struct dn_flow_queue8 *)*a->start; 581204591Sluigi struct dn_flow *ni = (struct dn_flow *)_ni; 582204591Sluigi int size = 0; 583204591Sluigi 584204591Sluigi /* XXX hash slot not set */ 585204591Sluigi /* No difference between 7.2/8 */ 586204591Sluigi fq7->len = ni->length; 587204591Sluigi fq7->len_bytes = ni->len_bytes; 588204591Sluigi fq7->id = ni->fid; 589204591Sluigi 590204591Sluigi if (is7) { 591204591Sluigi size = sizeof(struct dn_flow_queue7); 592204591Sluigi fq7->tot_pkts = ni->tot_pkts; 593204591Sluigi fq7->tot_bytes = ni->tot_bytes; 594204591Sluigi fq7->drops = ni->drops; 595204591Sluigi } else { 596204591Sluigi size = sizeof(struct dn_flow_queue8); 597204591Sluigi fq8->tot_pkts = ni->tot_pkts; 598204591Sluigi fq8->tot_bytes = ni->tot_bytes; 599204591Sluigi fq8->drops = ni->drops; 600204591Sluigi } 601204591Sluigi 602204591Sluigi *a->start += size; 603204591Sluigi return 0; 604204591Sluigi} 605204591Sluigi 606204591Sluigiint 607204591Sluigidn_c_copy_pipe(struct dn_schk *s, struct copy_args *a, int nq) 608204591Sluigi{ 609204591Sluigi struct dn_link *l = &s->link; 610204591Sluigi struct dn_fsk *f = s->fs; 611204591Sluigi 612204591Sluigi struct dn_pipe7 *pipe7 = (struct dn_pipe7 *)*a->start; 613204591Sluigi struct dn_pipe8 *pipe8 = (struct dn_pipe8 *)*a->start; 614204591Sluigi struct dn_flow_set *fs; 615204591Sluigi int size = 0; 616204591Sluigi 617204591Sluigi if (is7) { 618204591Sluigi fs = &pipe7->fs; 619204591Sluigi size = sizeof(struct dn_pipe7); 620204591Sluigi } else { 621204591Sluigi fs = &pipe8->fs; 622204591Sluigi size = sizeof(struct dn_pipe8); 623204591Sluigi } 624204591Sluigi 625204591Sluigi /* These 4 field are the same in pipe7 and pipe8 */ 626204591Sluigi pipe7->next.sle_next = (struct dn_pipe7 *)DN_IS_PIPE; 627204591Sluigi pipe7->bandwidth = l->bandwidth; 628221521Sae pipe7->delay = l->delay * 1000 / hz; 629204591Sluigi pipe7->pipe_nr = l->link_nr - DN_MAX_ID; 630204591Sluigi 631204591Sluigi if (!is7) { 632204591Sluigi if (s->profile) { 633204591Sluigi struct dn_profile *pf = s->profile; 634204591Sluigi strncpy(pipe8->name, pf->name, sizeof(pf->name)); 635204591Sluigi pipe8->loss_level = pf->loss_level; 636204591Sluigi pipe8->samples_no = pf->samples_no; 637204591Sluigi } 638204591Sluigi pipe8->burst = div64(l->burst , 8 * hz); 639204591Sluigi } 640204591Sluigi 641204591Sluigi fs->flow_mask = s->sch.sched_mask; 642204591Sluigi fs->rq_size = s->sch.buckets ? s->sch.buckets : 1; 643204591Sluigi 644204591Sluigi fs->parent_nr = l->link_nr - DN_MAX_ID; 645204591Sluigi fs->qsize = f->fs.qsize; 646204591Sluigi fs->plr = f->fs.plr; 647204591Sluigi fs->w_q = f->fs.w_q; 648204591Sluigi fs->max_th = f->max_th; 649204591Sluigi fs->min_th = f->min_th; 650204591Sluigi fs->max_p = f->fs.max_p; 651204591Sluigi fs->rq_elements = nq; 652204591Sluigi 653204591Sluigi fs->flags_fs = convertflags2old(f->fs.flags); 654204591Sluigi 655204591Sluigi *a->start += size; 656204591Sluigi return 0; 657204591Sluigi} 658204591Sluigi 659204591Sluigi 660204591Sluigiint 661204591Sluigidn_compat_copy_pipe(struct copy_args *a, void *_o) 662204591Sluigi{ 663204591Sluigi int have = a->end - *a->start; 664204591Sluigi int need = 0; 665204591Sluigi int pipe_size = sizeof(struct dn_pipe8); 666204591Sluigi int queue_size = sizeof(struct dn_flow_queue8); 667204591Sluigi int n_queue = 0; /* number of queues */ 668204591Sluigi 669204591Sluigi struct dn_schk *s = (struct dn_schk *)_o; 670204591Sluigi /* calculate needed space: 671204591Sluigi * - struct dn_pipe 672204591Sluigi * - if there are instances, dn_queue * n_instances 673204591Sluigi */ 674204591Sluigi n_queue = (s->sch.flags & DN_HAVE_MASK ? dn_ht_entries(s->siht) : 675204591Sluigi (s->siht ? 1 : 0)); 676204591Sluigi need = pipe_size + queue_size * n_queue; 677204591Sluigi if (have < need) { 678204591Sluigi D("have %d < need %d", have, need); 679204591Sluigi return 1; 680204591Sluigi } 681204591Sluigi /* copy pipe */ 682204591Sluigi dn_c_copy_pipe(s, a, n_queue); 683204591Sluigi 684204591Sluigi /* copy queues */ 685204591Sluigi if (s->sch.flags & DN_HAVE_MASK) 686204591Sluigi dn_ht_scan(s->siht, dn_c_copy_q, a); 687204591Sluigi else if (s->siht) 688204591Sluigi dn_c_copy_q(s->siht, a); 689204591Sluigi return 0; 690204591Sluigi} 691204591Sluigi 692204591Sluigiint 693204591Sluigidn_c_copy_fs(struct dn_fsk *f, struct copy_args *a, int nq) 694204591Sluigi{ 695204591Sluigi struct dn_flow_set *fs = (struct dn_flow_set *)*a->start; 696204591Sluigi 697204591Sluigi fs->next.sle_next = (struct dn_flow_set *)DN_IS_QUEUE; 698204591Sluigi fs->fs_nr = f->fs.fs_nr; 699204591Sluigi fs->qsize = f->fs.qsize; 700204591Sluigi fs->plr = f->fs.plr; 701204591Sluigi fs->w_q = f->fs.w_q; 702204591Sluigi fs->max_th = f->max_th; 703204591Sluigi fs->min_th = f->min_th; 704204591Sluigi fs->max_p = f->fs.max_p; 705204591Sluigi fs->flow_mask = f->fs.flow_mask; 706204591Sluigi fs->rq_elements = nq; 707204591Sluigi fs->rq_size = (f->fs.buckets ? f->fs.buckets : 1); 708204591Sluigi fs->parent_nr = f->fs.sched_nr; 709204591Sluigi fs->weight = f->fs.par[0]; 710204591Sluigi 711204591Sluigi fs->flags_fs = convertflags2old(f->fs.flags); 712204591Sluigi *a->start += sizeof(struct dn_flow_set); 713204591Sluigi return 0; 714204591Sluigi} 715204591Sluigi 716204591Sluigiint 717204591Sluigidn_compat_copy_queue(struct copy_args *a, void *_o) 718204591Sluigi{ 719204591Sluigi int have = a->end - *a->start; 720204591Sluigi int need = 0; 721204591Sluigi int fs_size = sizeof(struct dn_flow_set); 722204591Sluigi int queue_size = sizeof(struct dn_flow_queue8); 723204591Sluigi 724204591Sluigi struct dn_fsk *fs = (struct dn_fsk *)_o; 725204591Sluigi int n_queue = 0; /* number of queues */ 726204591Sluigi 727204591Sluigi n_queue = (fs->fs.flags & DN_HAVE_MASK ? dn_ht_entries(fs->qht) : 728204591Sluigi (fs->qht ? 1 : 0)); 729204591Sluigi 730204591Sluigi need = fs_size + queue_size * n_queue; 731204591Sluigi if (have < need) { 732204591Sluigi D("have < need"); 733204591Sluigi return 1; 734204591Sluigi } 735204591Sluigi 736204591Sluigi /* copy flowset */ 737204591Sluigi dn_c_copy_fs(fs, a, n_queue); 738204591Sluigi 739204591Sluigi /* copy queues */ 740204591Sluigi if (fs->fs.flags & DN_HAVE_MASK) 741204591Sluigi dn_ht_scan(fs->qht, dn_c_copy_q, a); 742204591Sluigi else if (fs->qht) 743204591Sluigi dn_c_copy_q(fs->qht, a); 744204591Sluigi 745204591Sluigi return 0; 746204591Sluigi} 747204591Sluigi 748204591Sluigiint 749204591Sluigicopy_data_helper_compat(void *_o, void *_arg) 750204591Sluigi{ 751204591Sluigi struct copy_args *a = _arg; 752204591Sluigi 753204591Sluigi if (a->type == DN_COMPAT_PIPE) { 754204591Sluigi struct dn_schk *s = _o; 755204591Sluigi if (s->sch.oid.subtype != 1 || s->sch.sched_nr <= DN_MAX_ID) { 756204591Sluigi return 0; /* not old type */ 757204591Sluigi } 758204591Sluigi /* copy pipe parameters, and if instance exists, copy 759204591Sluigi * other parameters and eventually queues. 760204591Sluigi */ 761204591Sluigi if(dn_compat_copy_pipe(a, _o)) 762204591Sluigi return DNHT_SCAN_END; 763204591Sluigi } else if (a->type == DN_COMPAT_QUEUE) { 764204591Sluigi struct dn_fsk *fs = _o; 765204591Sluigi if (fs->fs.fs_nr >= DN_MAX_ID) 766204591Sluigi return 0; 767204591Sluigi if (dn_compat_copy_queue(a, _o)) 768204591Sluigi return DNHT_SCAN_END; 769204591Sluigi } 770204591Sluigi return 0; 771204591Sluigi} 772204591Sluigi 773204591Sluigi/* Main function to manage old requests */ 774204591Sluigiint 775204591Sluigiip_dummynet_compat(struct sockopt *sopt) 776204591Sluigi{ 777204591Sluigi int error=0; 778204591Sluigi void *v = NULL; 779204591Sluigi struct dn_id oid; 780204591Sluigi 781204591Sluigi /* Lenght of data, used to found ipfw version... */ 782204591Sluigi int len = sopt->sopt_valsize; 783204591Sluigi 784204591Sluigi /* len can be 0 if command was dummynet_flush */ 785204591Sluigi if (len == pipesize7) { 786204591Sluigi D("setting compatibility with FreeBSD 7.2"); 787204591Sluigi is7 = 1; 788204591Sluigi } 789204591Sluigi else if (len == pipesize8 || len == pipesizemax8) { 790204591Sluigi D("setting compatibility with FreeBSD 8"); 791204591Sluigi is7 = 0; 792204591Sluigi } 793204591Sluigi 794204591Sluigi switch (sopt->sopt_name) { 795204591Sluigi default: 796204591Sluigi printf("dummynet: -- unknown option %d", sopt->sopt_name); 797204591Sluigi error = EINVAL; 798204591Sluigi break; 799204591Sluigi 800204591Sluigi case IP_DUMMYNET_FLUSH: 801204591Sluigi oid_fill(&oid, sizeof(oid), DN_CMD_FLUSH, DN_API_VERSION); 802204591Sluigi do_config(&oid, oid.len); 803204591Sluigi break; 804204591Sluigi 805204591Sluigi case IP_DUMMYNET_DEL: 806204591Sluigi v = malloc(len, M_TEMP, M_WAITOK); 807204591Sluigi error = sooptcopyin(sopt, v, len, len); 808204591Sluigi if (error) 809204591Sluigi break; 810204591Sluigi error = dn_compat_del(v); 811220204Sae free(v, M_TEMP); 812204591Sluigi break; 813204591Sluigi 814204591Sluigi case IP_DUMMYNET_CONFIGURE: 815204591Sluigi v = malloc(len, M_TEMP, M_WAITOK); 816204591Sluigi error = sooptcopyin(sopt, v, len, len); 817204591Sluigi if (error) 818204591Sluigi break; 819204591Sluigi error = dn_compat_configure(v); 820220204Sae free(v, M_TEMP); 821204591Sluigi break; 822204591Sluigi 823204591Sluigi case IP_DUMMYNET_GET: { 824204591Sluigi void *buf; 825204591Sluigi int ret; 826204591Sluigi int original_size = sopt->sopt_valsize; 827204591Sluigi int size; 828204591Sluigi 829204591Sluigi ret = dummynet_get(sopt, &buf); 830204591Sluigi if (ret) 831204591Sluigi return 0;//XXX ? 832204591Sluigi size = sopt->sopt_valsize; 833204591Sluigi sopt->sopt_valsize = original_size; 834204591Sluigi D("size=%d, buf=%p", size, buf); 835204591Sluigi ret = sooptcopyout(sopt, buf, size); 836204591Sluigi if (ret) 837204591Sluigi printf(" %s ERROR sooptcopyout\n", __FUNCTION__); 838204591Sluigi if (buf) 839204591Sluigi free(buf, M_DUMMYNET); 840204591Sluigi } 841204591Sluigi } 842204591Sluigi 843204591Sluigi return error; 844204591Sluigi} 845204591Sluigi 846204591Sluigi 847