altq_conf.c revision 1.12.12.3
1 /* $NetBSD: altq_conf.c,v 1.12.12.3 2006/09/25 03:56:59 peter Exp $ */ 2 /* $KAME: altq_conf.c,v 1.24 2005/04/13 03:44:24 suz Exp $ */ 3 4 /* 5 * Copyright (C) 1997-2003 6 * Sony Computer Science Laboratories Inc. All rights reserved. 7 * 8 * Redistribution and use in source and binary forms, with or without 9 * modification, are permitted provided that the following conditions 10 * are met: 11 * 1. Redistributions of source code must retain the above copyright 12 * notice, this list of conditions and the following disclaimer. 13 * 2. Redistributions in binary form must reproduce the above copyright 14 * notice, this list of conditions and the following disclaimer in the 15 * documentation and/or other materials provided with the distribution. 16 * 17 * THIS SOFTWARE IS PROVIDED BY SONY CSL AND CONTRIBUTORS ``AS IS'' AND 18 * ANY EXPRESS OR IMPLIED WARRANTIES, INCLUDING, BUT NOT LIMITED TO, THE 19 * IMPLIED WARRANTIES OF MERCHANTABILITY AND FITNESS FOR A PARTICULAR PURPOSE 20 * ARE DISCLAIMED. IN NO EVENT SHALL SONY CSL OR CONTRIBUTORS BE LIABLE 21 * FOR ANY DIRECT, INDIRECT, INCIDENTAL, SPECIAL, EXEMPLARY, OR CONSEQUENTIAL 22 * DAMAGES (INCLUDING, BUT NOT LIMITED TO, PROCUREMENT OF SUBSTITUTE GOODS 23 * OR SERVICES; LOSS OF USE, DATA, OR PROFITS; OR BUSINESS INTERRUPTION) 24 * HOWEVER CAUSED AND ON ANY THEORY OF LIABILITY, WHETHER IN CONTRACT, STRICT 25 * LIABILITY, OR TORT (INCLUDING NEGLIGENCE OR OTHERWISE) ARISING IN ANY WAY 26 * OUT OF THE USE OF THIS SOFTWARE, EVEN IF ADVISED OF THE POSSIBILITY OF 27 * SUCH DAMAGE. 28 */ 29 30 #include <sys/cdefs.h> 31 __KERNEL_RCSID(0, "$NetBSD: altq_conf.c,v 1.12.12.3 2006/09/25 03:56:59 peter Exp $"); 32 33 #ifdef _KERNEL_OPT 34 #include "opt_altq.h" 35 #include "opt_inet.h" 36 #endif 37 38 /* 39 * altq device interface. 40 */ 41 #include <sys/param.h> 42 #include <sys/systm.h> 43 #include <sys/socket.h> 44 #include <sys/kernel.h> 45 #include <sys/proc.h> 46 #include <sys/errno.h> 47 #include <sys/kauth.h> 48 49 #include <net/if.h> 50 51 #include <altq/altq.h> 52 #include <altq/altqconf.h> 53 #include <altq/altq_conf.h> 54 55 #ifdef ALTQ3_COMPAT 56 57 #ifdef ALTQ_CBQ 58 altqdev_decl(cbq); 59 #endif 60 #ifdef ALTQ_WFQ 61 altqdev_decl(wfq); 62 #endif 63 #ifdef ALTQ_AFMAP 64 altqdev_decl(afm); 65 #endif 66 #ifdef ALTQ_FIFOQ 67 altqdev_decl(fifoq); 68 #endif 69 #ifdef ALTQ_RED 70 altqdev_decl(red); 71 #endif 72 #ifdef ALTQ_RIO 73 altqdev_decl(rio); 74 #endif 75 #ifdef ALTQ_LOCALQ 76 altqdev_decl(localq); 77 #endif 78 #ifdef ALTQ_HFSC 79 altqdev_decl(hfsc); 80 #endif 81 #ifdef ALTQ_CDNR 82 altqdev_decl(cdnr); 83 #endif 84 #ifdef ALTQ_BLUE 85 altqdev_decl(blue); 86 #endif 87 #ifdef ALTQ_PRIQ 88 altqdev_decl(priq); 89 #endif 90 #ifdef ALTQ_JOBS 91 altqdev_decl(jobs); 92 #endif 93 94 /* 95 * altq minor device (discipline) table 96 */ 97 static struct altqsw altqsw[] = { /* minor */ 98 {"altq", noopen, noclose, noioctl}, /* 0 (reserved) */ 99 #ifdef ALTQ_CBQ 100 {"cbq", cbqopen, cbqclose, cbqioctl}, /* 1 */ 101 #else 102 {"noq", noopen, noclose, noioctl}, /* 1 */ 103 #endif 104 #ifdef ALTQ_WFQ 105 {"wfq", wfqopen, wfqclose, wfqioctl}, /* 2 */ 106 #else 107 {"noq", noopen, noclose, noioctl}, /* 2 */ 108 #endif 109 #ifdef ALTQ_AFMAP 110 {"afm", afmopen, afmclose, afmioctl}, /* 3 */ 111 #else 112 {"noq", noopen, noclose, noioctl}, /* 3 */ 113 #endif 114 #ifdef ALTQ_FIFOQ 115 {"fifoq", fifoqopen, fifoqclose, fifoqioctl}, /* 4 */ 116 #else 117 {"noq", noopen, noclose, noioctl}, /* 4 */ 118 #endif 119 #ifdef ALTQ_RED 120 {"red", redopen, redclose, redioctl}, /* 5 */ 121 #else 122 {"noq", noopen, noclose, noioctl}, /* 5 */ 123 #endif 124 #ifdef ALTQ_RIO 125 {"rio", rioopen, rioclose, rioioctl}, /* 6 */ 126 #else 127 {"noq", noopen, noclose, noioctl}, /* 6 */ 128 #endif 129 #ifdef ALTQ_LOCALQ 130 {"localq",localqopen, localqclose, localqioctl}, /* 7 (local use) */ 131 #else 132 {"noq", noopen, noclose, noioctl}, /* 7 (local use) */ 133 #endif 134 #ifdef ALTQ_HFSC 135 {"hfsc",hfscopen, hfscclose, hfscioctl}, /* 8 */ 136 #else 137 {"noq", noopen, noclose, noioctl}, /* 8 */ 138 #endif 139 #ifdef ALTQ_CDNR 140 {"cdnr",cdnropen, cdnrclose, cdnrioctl}, /* 9 */ 141 #else 142 {"noq", noopen, noclose, noioctl}, /* 9 */ 143 #endif 144 #ifdef ALTQ_BLUE 145 {"blue",blueopen, blueclose, blueioctl}, /* 10 */ 146 #else 147 {"noq", noopen, noclose, noioctl}, /* 10 */ 148 #endif 149 #ifdef ALTQ_PRIQ 150 {"priq",priqopen, priqclose, priqioctl}, /* 11 */ 151 #else 152 {"noq", noopen, noclose, noioctl}, /* 11 */ 153 #endif 154 #ifdef ALTQ_JOBS 155 {"jobs",jobsopen, jobsclose, jobsioctl}, /* 12 */ 156 #else 157 {"noq", noopen, noclose, noioctl}, /* 12 */ 158 #endif 159 }; 160 161 /* 162 * altq major device support 163 */ 164 int naltqsw = sizeof (altqsw) / sizeof (altqsw[0]); 165 166 dev_type_open(altqopen); 167 dev_type_close(altqclose); 168 dev_type_ioctl(altqioctl); 169 170 const struct cdevsw altq_cdevsw = { 171 altqopen, altqclose, noread, nowrite, altqioctl, 172 nostop, notty, nopoll, nommap, nokqfilter, D_OTHER, 173 }; 174 175 int 176 altqopen(dev, flag, fmt, l) 177 dev_t dev; 178 int flag, fmt; 179 struct lwp *l; 180 { 181 int unit = minor(dev); 182 183 if (unit == 0) 184 return (0); 185 if (unit < naltqsw) 186 return (*altqsw[unit].d_open)(dev, flag, fmt, l); 187 188 return ENXIO; 189 } 190 191 int 192 altqclose(dev, flag, fmt, l) 193 dev_t dev; 194 int flag, fmt; 195 struct lwp *l; 196 { 197 int unit = minor(dev); 198 199 if (unit == 0) 200 return (0); 201 if (unit < naltqsw) 202 return (*altqsw[unit].d_close)(dev, flag, fmt, l); 203 204 return ENXIO; 205 } 206 207 int 208 altqioctl(dev, cmd, addr, flag, l) 209 dev_t dev; 210 ioctlcmd_t cmd; 211 caddr_t addr; 212 int flag; 213 struct lwp *l; 214 { 215 int unit = minor(dev); 216 217 if (unit == 0) { 218 struct ifnet *ifp; 219 struct altqreq *typereq; 220 struct tbrreq *tbrreq; 221 int error; 222 223 switch (cmd) { 224 case ALTQGTYPE: 225 case ALTQTBRGET: 226 break; 227 default: 228 #if (__FreeBSD_version > 400000) 229 if ((error = suser(p)) != 0) 230 return (error); 231 #else 232 if ((error = kauth_authorize_generic(l->l_cred, 233 KAUTH_GENERIC_ISSUSER, &l->l_acflag)) != 0) 234 return (error); 235 #endif 236 break; 237 } 238 239 switch (cmd) { 240 case ALTQGTYPE: 241 typereq = (struct altqreq *)addr; 242 if ((ifp = ifunit(typereq->ifname)) == NULL) 243 return (EINVAL); 244 typereq->arg = (u_long)ifp->if_snd.altq_type; 245 return (0); 246 case ALTQTBRSET: 247 tbrreq = (struct tbrreq *)addr; 248 if ((ifp = ifunit(tbrreq->ifname)) == NULL) 249 return (EINVAL); 250 return tbr_set(&ifp->if_snd, &tbrreq->tb_prof); 251 case ALTQTBRGET: 252 tbrreq = (struct tbrreq *)addr; 253 if ((ifp = ifunit(tbrreq->ifname)) == NULL) 254 return (EINVAL); 255 return tbr_get(&ifp->if_snd, &tbrreq->tb_prof); 256 default: 257 return (EINVAL); 258 } 259 } 260 if (unit < naltqsw) 261 return (*altqsw[unit].d_ioctl)(dev, cmd, addr, flag, l); 262 263 return ENXIO; 264 } 265 266 #ifdef __FreeBSD__ 267 static int altq_devsw_installed = 0; 268 #endif 269 270 #ifdef __FreeBSD__ 271 static void 272 altq_drvinit(unused) 273 void *unused; 274 { 275 int unit; 276 277 #if 0 278 mtx_init(&altq_mtx, "altq global lock", MTX_DEF); 279 #endif 280 altq_devsw_installed = 1; 281 printf("altq: attached. Major number assigned automatically.\n"); 282 283 /* create minor devices */ 284 for (unit = 0; unit < naltqsw; unit++) { 285 if (unit == 0 || altqsw[unit].d_open != NULL) 286 altqsw[unit].dev = make_dev(&altq_cdevsw, unit, 287 UID_ROOT, GID_WHEEL, 0644, "altq/%s", 288 altqsw[unit].d_name); 289 } 290 } 291 292 SYSINIT(altqdev,SI_SUB_DRIVERS,SI_ORDER_MIDDLE+CDEV_MAJOR,altq_drvinit,NULL) 293 294 #endif /* FreeBSD */ 295 296 #ifdef ALTQ_KLD 297 /* 298 * KLD support 299 */ 300 static int altq_module_register(struct altq_module_data *); 301 static int altq_module_deregister(struct altq_module_data *); 302 303 static struct altq_module_data *altq_modules[ALTQT_MAX]; 304 #if __FreeBSD_version < 502103 305 static struct altqsw noqdisc = {"noq", noopen, noclose, noioctl}; 306 #else 307 static struct altqsw noqdisc = {"noq"}; 308 #endif 309 310 void altq_module_incref(type) 311 int type; 312 { 313 if (type < 0 || type >= ALTQT_MAX || altq_modules[type] == NULL) 314 return; 315 316 altq_modules[type]->ref++; 317 } 318 319 void altq_module_declref(type) 320 int type; 321 { 322 if (type < 0 || type >= ALTQT_MAX || altq_modules[type] == NULL) 323 return; 324 325 altq_modules[type]->ref--; 326 } 327 328 static int 329 altq_module_register(mdata) 330 struct altq_module_data *mdata; 331 { 332 int type = mdata->type; 333 334 if (type < 0 || type >= ALTQT_MAX) 335 return (EINVAL); 336 #if (__FreeBSD_version < 502103) 337 if (altqsw[type].d_open != noopen) 338 #else 339 if (altqsw[type].d_open != NULL) 340 #endif 341 return (EBUSY); 342 altqsw[type] = *mdata->altqsw; /* set discipline functions */ 343 altq_modules[type] = mdata; /* save module data pointer */ 344 #if (__FreeBSD_version < 502103) 345 make_dev(&altq_cdevsw, type, UID_ROOT, GID_WHEEL, 0644, 346 "altq/%s", altqsw[type].d_name); 347 #else 348 altqsw[type].dev = make_dev(&altq_cdevsw, type, UID_ROOT, GID_WHEEL, 349 0644, "altq/%s", altqsw[type].d_name); 350 #endif 351 return (0); 352 } 353 354 static int 355 altq_module_deregister(mdata) 356 struct altq_module_data *mdata; 357 { 358 int type = mdata->type; 359 360 if (type < 0 || type >= ALTQT_MAX) 361 return (EINVAL); 362 if (mdata != altq_modules[type]) 363 return (EINVAL); 364 if (altq_modules[type]->ref > 0) 365 return (EBUSY); 366 #if (__FreeBSD_version < 502103) 367 destroy_dev(makedev(CDEV_MAJOR, type)); 368 #else 369 destroy_dev(altqsw[type].dev); 370 #endif 371 altqsw[type] = noqdisc; 372 altq_modules[type] = NULL; 373 return (0); 374 } 375 376 int 377 altq_module_handler(mod, cmd, arg) 378 module_t mod; 379 int cmd; 380 void * arg; 381 { 382 struct altq_module_data *data = (struct altq_module_data *)arg; 383 int error = 0; 384 385 switch (cmd) { 386 case MOD_LOAD: 387 error = altq_module_register(data); 388 break; 389 390 case MOD_UNLOAD: 391 error = altq_module_deregister(data); 392 break; 393 394 default: 395 error = EINVAL; 396 break; 397 } 398 399 return(error); 400 } 401 402 #endif /* ALTQ_KLD */ 403 #endif /* ALTQ3_COMPAT */ 404
Indexes created Thu Oct 23 22:10:10 GMT 2025