Annotation of sys/net/if_gif.c, Revision 1.1
1.1 ! nbrk 1: /* $OpenBSD: if_gif.c,v 1.45 2007/05/26 17:13:30 jason Exp $ */
! 2: /* $KAME: if_gif.c,v 1.43 2001/02/20 08:51:07 itojun Exp $ */
! 3:
! 4: /*
! 5: * Copyright (C) 1995, 1996, 1997, and 1998 WIDE Project.
! 6: * 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: * 3. Neither the name of the project nor the names of its contributors
! 17: * may be used to endorse or promote products derived from this software
! 18: * without specific prior written permission.
! 19: *
! 20: * THIS SOFTWARE IS PROVIDED BY THE PROJECT AND CONTRIBUTORS ``AS IS'' AND
! 21: * ANY EXPRESS OR IMPLIED WARRANTIES, INCLUDING, BUT NOT LIMITED TO, THE
! 22: * IMPLIED WARRANTIES OF MERCHANTABILITY AND FITNESS FOR A PARTICULAR PURPOSE
! 23: * ARE DISCLAIMED. IN NO EVENT SHALL THE PROJECT OR CONTRIBUTORS BE LIABLE
! 24: * FOR ANY DIRECT, INDIRECT, INCIDENTAL, SPECIAL, EXEMPLARY, OR CONSEQUENTIAL
! 25: * DAMAGES (INCLUDING, BUT NOT LIMITED TO, PROCUREMENT OF SUBSTITUTE GOODS
! 26: * OR SERVICES; LOSS OF USE, DATA, OR PROFITS; OR BUSINESS INTERRUPTION)
! 27: * HOWEVER CAUSED AND ON ANY THEORY OF LIABILITY, WHETHER IN CONTRACT, STRICT
! 28: * LIABILITY, OR TORT (INCLUDING NEGLIGENCE OR OTHERWISE) ARISING IN ANY WAY
! 29: * OUT OF THE USE OF THIS SOFTWARE, EVEN IF ADVISED OF THE POSSIBILITY OF
! 30: * SUCH DAMAGE.
! 31: */
! 32:
! 33: #include <sys/param.h>
! 34: #include <sys/systm.h>
! 35: #include <sys/kernel.h>
! 36: #include <sys/mbuf.h>
! 37: #include <sys/socket.h>
! 38: #include <sys/sockio.h>
! 39: #include <sys/syslog.h>
! 40:
! 41: #include <net/if.h>
! 42: #include <net/if_types.h>
! 43: #include <net/route.h>
! 44: #include <net/bpf.h>
! 45:
! 46: #ifdef INET
! 47: #include <netinet/in.h>
! 48: #include <netinet/in_systm.h>
! 49: #include <netinet/in_var.h>
! 50: #include <netinet/in_gif.h>
! 51: #include <netinet/ip.h>
! 52: #endif /* INET */
! 53:
! 54: #ifdef INET6
! 55: #ifndef INET
! 56: #include <netinet/in.h>
! 57: #endif
! 58: #include <netinet/ip6.h>
! 59: #include <netinet6/in6_gif.h>
! 60: #endif /* INET6 */
! 61:
! 62: #include <net/if_gif.h>
! 63:
! 64: #include "bpfilter.h"
! 65: #include "bridge.h"
! 66:
! 67: void gifattach(int);
! 68: int gif_clone_create(struct if_clone *, int);
! 69: int gif_clone_destroy(struct ifnet *);
! 70:
! 71: /*
! 72: * gif global variable definitions
! 73: */
! 74: struct gif_softc_head gif_softc_list;
! 75: struct if_clone gif_cloner =
! 76: IF_CLONE_INITIALIZER("gif", gif_clone_create, gif_clone_destroy);
! 77:
! 78: /* ARGSUSED */
! 79: void
! 80: gifattach(count)
! 81: int count;
! 82: {
! 83: LIST_INIT(&gif_softc_list);
! 84: if_clone_attach(&gif_cloner);
! 85: }
! 86:
! 87: int
! 88: gif_clone_create(ifc, unit)
! 89: struct if_clone *ifc;
! 90: int unit;
! 91: {
! 92: struct gif_softc *sc;
! 93: int s;
! 94:
! 95: sc = malloc(sizeof(*sc), M_DEVBUF, M_NOWAIT);
! 96: if (!sc)
! 97: return (ENOMEM);
! 98: bzero(sc, sizeof(*sc));
! 99:
! 100: snprintf(sc->gif_if.if_xname, sizeof sc->gif_if.if_xname,
! 101: "%s%d", ifc->ifc_name, unit);
! 102: sc->gif_if.if_mtu = GIF_MTU;
! 103: sc->gif_if.if_flags = IFF_POINTOPOINT | IFF_MULTICAST;
! 104: sc->gif_if.if_ioctl = gif_ioctl;
! 105: sc->gif_if.if_start = gif_start;
! 106: sc->gif_if.if_output = gif_output;
! 107: sc->gif_if.if_type = IFT_GIF;
! 108: IFQ_SET_MAXLEN(&sc->gif_if.if_snd, ifqmaxlen);
! 109: IFQ_SET_READY(&sc->gif_if.if_snd);
! 110: sc->gif_if.if_softc = sc;
! 111: if_attach(&sc->gif_if);
! 112: if_alloc_sadl(&sc->gif_if);
! 113:
! 114: #if NBPFILTER > 0
! 115: bpfattach(&sc->gif_if.if_bpf, &sc->gif_if, DLT_NULL,
! 116: sizeof(u_int));
! 117: #endif
! 118: s = splnet();
! 119: LIST_INSERT_HEAD(&gif_softc_list, sc, gif_list);
! 120: splx(s);
! 121:
! 122: return (0);
! 123: }
! 124:
! 125: int
! 126: gif_clone_destroy(ifp)
! 127: struct ifnet *ifp;
! 128: {
! 129: struct gif_softc *sc = ifp->if_softc;
! 130: int s;
! 131:
! 132: s = splnet();
! 133: LIST_REMOVE(sc, gif_list);
! 134: splx(s);
! 135:
! 136: if_detach(ifp);
! 137:
! 138: if (sc->gif_psrc)
! 139: free((caddr_t)sc->gif_psrc, M_IFADDR);
! 140: sc->gif_psrc = NULL;
! 141: if (sc->gif_pdst)
! 142: free((caddr_t)sc->gif_pdst, M_IFADDR);
! 143: sc->gif_pdst = NULL;
! 144: free(sc, M_DEVBUF);
! 145: return (0);
! 146: }
! 147:
! 148: void
! 149: gif_start(ifp)
! 150: struct ifnet *ifp;
! 151: {
! 152: struct gif_softc *sc = (struct gif_softc*)ifp;
! 153: struct mbuf *m;
! 154: struct m_tag *mtag;
! 155: int family;
! 156: int s;
! 157: u_int8_t tp;
! 158:
! 159: /* is interface up and running? */
! 160: if ((ifp->if_flags & (IFF_OACTIVE | IFF_UP)) != IFF_UP ||
! 161: sc->gif_psrc == NULL || sc->gif_pdst == NULL)
! 162: return;
! 163:
! 164: /* are the tunnel endpoints valid? */
! 165: #ifdef INET
! 166: if (sc->gif_psrc->sa_family != AF_INET)
! 167: #endif
! 168: #ifdef INET6
! 169: if (sc->gif_psrc->sa_family != AF_INET6)
! 170: #endif
! 171: return;
! 172:
! 173: s = splnet();
! 174: ifp->if_flags |= IFF_OACTIVE;
! 175: splx(s);
! 176:
! 177: while (1) {
! 178: s = splnet();
! 179: IFQ_DEQUEUE(&ifp->if_snd, m);
! 180: splx(s);
! 181:
! 182: if (m == NULL)
! 183: break;
! 184:
! 185: /*
! 186: * gif may cause infinite recursion calls when misconfigured.
! 187: * We'll prevent this by detecting loops.
! 188: */
! 189: for (mtag = m_tag_find(m, PACKET_TAG_GIF, NULL); mtag;
! 190: mtag = m_tag_find(m, PACKET_TAG_GIF, mtag)) {
! 191: if (!bcmp((caddr_t)(mtag + 1), &ifp,
! 192: sizeof(struct ifnet *))) {
! 193: IF_DROP(&ifp->if_snd);
! 194: log(LOG_NOTICE, "gif_output: "
! 195: "recursively called too many times\n");
! 196: m_freem(m);
! 197: break;
! 198: }
! 199: }
! 200: if (mtag)
! 201: continue;
! 202:
! 203: mtag = m_tag_get(PACKET_TAG_GIF, sizeof(caddr_t), M_NOWAIT);
! 204: if (mtag == NULL) {
! 205: m_freem(m);
! 206: break;
! 207: }
! 208: bcopy(&ifp, mtag + 1, sizeof(caddr_t));
! 209: m_tag_prepend(m, mtag);
! 210:
! 211: /*
! 212: * remove multicast and broadcast flags or encapsulated paket
! 213: * ends up as multicast or broadcast packet.
! 214: */
! 215: m->m_flags &= ~(M_BCAST|M_MCAST);
! 216:
! 217: /* extract address family */
! 218: family = AF_UNSPEC;
! 219: tp = *mtod(m, u_int8_t *);
! 220: tp = (tp >> 4) & 0xff; /* Get the IP version number. */
! 221: #ifdef INET
! 222: if (tp == IPVERSION)
! 223: family = AF_INET;
! 224: #endif
! 225: #ifdef INET6
! 226: if (tp == (IPV6_VERSION >> 4))
! 227: family = AF_INET6;
! 228: #endif
! 229:
! 230: #if NBRIDGE > 0
! 231: /*
! 232: * Check if the packet is comming via bridge and needs
! 233: * etherip encapsulation or not.
! 234: */
! 235: if (ifp->if_bridge && (m->m_flags & M_PROTO1)) {
! 236: m->m_flags &= ~M_PROTO1;
! 237: family = AF_LINK;
! 238: }
! 239: #endif
! 240:
! 241: #if NBPFILTER > 0
! 242: if (ifp->if_bpf)
! 243: bpf_mtap_af(ifp->if_bpf, family, m, BPF_DIRECTION_OUT);
! 244: #endif
! 245: ifp->if_opackets++;
! 246: ifp->if_obytes += m->m_pkthdr.len;
! 247:
! 248: switch (sc->gif_psrc->sa_family) {
! 249: #ifdef INET
! 250: case AF_INET:
! 251: in_gif_output(ifp, family, m);
! 252: break;
! 253: #endif
! 254: #ifdef INET6
! 255: case AF_INET6:
! 256: in6_gif_output(ifp, family, m);
! 257: break;
! 258: #endif
! 259: default:
! 260: m_freem(m);
! 261: break;
! 262: }
! 263: }
! 264:
! 265: ifp->if_flags &= ~IFF_OACTIVE;
! 266: }
! 267:
! 268: int
! 269: gif_output(ifp, m, dst, rt)
! 270: struct ifnet *ifp;
! 271: struct mbuf *m;
! 272: struct sockaddr *dst;
! 273: struct rtentry *rt; /* added in net2 */
! 274: {
! 275: struct gif_softc *sc = (struct gif_softc*)ifp;
! 276: int error = 0;
! 277: int s;
! 278:
! 279: if (!(ifp->if_flags & IFF_UP) ||
! 280: sc->gif_psrc == NULL || sc->gif_pdst == NULL) {
! 281: m_freem(m);
! 282: error = ENETDOWN;
! 283: goto end;
! 284: }
! 285:
! 286: switch (sc->gif_psrc->sa_family) {
! 287: #ifdef INET
! 288: case AF_INET:
! 289: break;
! 290: #endif
! 291: #ifdef INET6
! 292: case AF_INET6:
! 293: break;
! 294: #endif
! 295: default:
! 296: m_freem(m);
! 297: error = ENETDOWN;
! 298: goto end;
! 299: }
! 300:
! 301: s = splnet();
! 302: /*
! 303: * Queue message on interface, and start output if interface
! 304: * not yet active.
! 305: */
! 306: IFQ_ENQUEUE(&ifp->if_snd, m, NULL, error);
! 307: if (error) {
! 308: /* mbuf is already freed */
! 309: splx(s);
! 310: return (error);
! 311: }
! 312: if ((ifp->if_flags & IFF_OACTIVE) == 0)
! 313: (*ifp->if_start)(ifp);
! 314: splx(s);
! 315: return (error);
! 316:
! 317: end:
! 318: if (error)
! 319: ifp->if_oerrors++;
! 320: return (error);
! 321: }
! 322:
! 323: int
! 324: gif_ioctl(ifp, cmd, data)
! 325: struct ifnet *ifp;
! 326: u_long cmd;
! 327: caddr_t data;
! 328: {
! 329: struct gif_softc *sc = (struct gif_softc*)ifp;
! 330: struct ifreq *ifr = (struct ifreq*)data;
! 331: int error = 0, size;
! 332: struct sockaddr *dst, *src;
! 333: struct sockaddr *sa;
! 334: int s;
! 335: struct gif_softc *sc2;
! 336:
! 337: switch (cmd) {
! 338: case SIOCSIFADDR:
! 339: break;
! 340:
! 341: case SIOCSIFDSTADDR:
! 342: break;
! 343:
! 344: case SIOCADDMULTI:
! 345: case SIOCDELMULTI:
! 346: switch (ifr->ifr_addr.sa_family) {
! 347: #ifdef INET
! 348: case AF_INET: /* IP supports Multicast */
! 349: break;
! 350: #endif /* INET */
! 351: #ifdef INET6
! 352: case AF_INET6: /* IP6 supports Multicast */
! 353: break;
! 354: #endif /* INET6 */
! 355: default: /* Other protocols doesn't support Multicast */
! 356: error = EAFNOSUPPORT;
! 357: break;
! 358: }
! 359: break;
! 360:
! 361: case SIOCSIFPHYADDR:
! 362: #ifdef INET6
! 363: case SIOCSIFPHYADDR_IN6:
! 364: #endif /* INET6 */
! 365: case SIOCSLIFPHYADDR:
! 366: switch (cmd) {
! 367: #ifdef INET
! 368: case SIOCSIFPHYADDR:
! 369: src = (struct sockaddr *)
! 370: &(((struct in_aliasreq *)data)->ifra_addr);
! 371: dst = (struct sockaddr *)
! 372: &(((struct in_aliasreq *)data)->ifra_dstaddr);
! 373: break;
! 374: #endif
! 375: #ifdef INET6
! 376: case SIOCSIFPHYADDR_IN6:
! 377: src = (struct sockaddr *)
! 378: &(((struct in6_aliasreq *)data)->ifra_addr);
! 379: dst = (struct sockaddr *)
! 380: &(((struct in6_aliasreq *)data)->ifra_dstaddr);
! 381: break;
! 382: #endif
! 383: case SIOCSLIFPHYADDR:
! 384: src = (struct sockaddr *)
! 385: &(((struct if_laddrreq *)data)->addr);
! 386: dst = (struct sockaddr *)
! 387: &(((struct if_laddrreq *)data)->dstaddr);
! 388: break;
! 389: default:
! 390: return (EINVAL);
! 391: }
! 392:
! 393: /* sa_family must be equal */
! 394: if (src->sa_family != dst->sa_family)
! 395: return (EINVAL);
! 396:
! 397: /* validate sa_len */
! 398: switch (src->sa_family) {
! 399: #ifdef INET
! 400: case AF_INET:
! 401: if (src->sa_len != sizeof(struct sockaddr_in))
! 402: return (EINVAL);
! 403: break;
! 404: #endif
! 405: #ifdef INET6
! 406: case AF_INET6:
! 407: if (src->sa_len != sizeof(struct sockaddr_in6))
! 408: return (EINVAL);
! 409: break;
! 410: #endif
! 411: default:
! 412: return (EAFNOSUPPORT);
! 413: }
! 414: switch (dst->sa_family) {
! 415: #ifdef INET
! 416: case AF_INET:
! 417: if (dst->sa_len != sizeof(struct sockaddr_in))
! 418: return (EINVAL);
! 419: break;
! 420: #endif
! 421: #ifdef INET6
! 422: case AF_INET6:
! 423: if (dst->sa_len != sizeof(struct sockaddr_in6))
! 424: return (EINVAL);
! 425: break;
! 426: #endif
! 427: default:
! 428: return (EAFNOSUPPORT);
! 429: }
! 430:
! 431: /* check sa_family looks sane for the cmd */
! 432: switch (cmd) {
! 433: case SIOCSIFPHYADDR:
! 434: if (src->sa_family == AF_INET)
! 435: break;
! 436: return (EAFNOSUPPORT);
! 437: #ifdef INET6
! 438: case SIOCSIFPHYADDR_IN6:
! 439: if (src->sa_family == AF_INET6)
! 440: break;
! 441: return (EAFNOSUPPORT);
! 442: #endif /* INET6 */
! 443: case SIOCSLIFPHYADDR:
! 444: /* checks done in the above */
! 445: break;
! 446: }
! 447:
! 448: LIST_FOREACH(sc2, &gif_softc_list, gif_list) {
! 449: if (sc2 == sc)
! 450: continue;
! 451: if (!sc2->gif_pdst || !sc2->gif_psrc)
! 452: continue;
! 453: if (sc2->gif_pdst->sa_family != dst->sa_family ||
! 454: sc2->gif_pdst->sa_len != dst->sa_len ||
! 455: sc2->gif_psrc->sa_family != src->sa_family ||
! 456: sc2->gif_psrc->sa_len != src->sa_len)
! 457: continue;
! 458: /* can't configure same pair of address onto two gifs */
! 459: if (bcmp(sc2->gif_pdst, dst, dst->sa_len) == 0 &&
! 460: bcmp(sc2->gif_psrc, src, src->sa_len) == 0) {
! 461: error = EADDRNOTAVAIL;
! 462: goto bad;
! 463: }
! 464:
! 465: /* can't configure multiple multi-dest interfaces */
! 466: #define multidest(x) \
! 467: (((struct sockaddr_in *)(x))->sin_addr.s_addr == INADDR_ANY)
! 468: #ifdef INET6
! 469: #define multidest6(x) \
! 470: (IN6_IS_ADDR_UNSPECIFIED(&((struct sockaddr_in6 *)(x))->sin6_addr))
! 471: #endif
! 472: if (dst->sa_family == AF_INET &&
! 473: multidest(dst) && multidest(sc2->gif_pdst)) {
! 474: error = EADDRNOTAVAIL;
! 475: goto bad;
! 476: }
! 477: #ifdef INET6
! 478: if (dst->sa_family == AF_INET6 &&
! 479: multidest6(dst) && multidest6(sc2->gif_pdst)) {
! 480: error = EADDRNOTAVAIL;
! 481: goto bad;
! 482: }
! 483: #endif
! 484: }
! 485:
! 486: if (sc->gif_psrc)
! 487: free((caddr_t)sc->gif_psrc, M_IFADDR);
! 488: sa = (struct sockaddr *)malloc(src->sa_len, M_IFADDR, M_WAITOK);
! 489: bcopy((caddr_t)src, (caddr_t)sa, src->sa_len);
! 490: sc->gif_psrc = sa;
! 491:
! 492: if (sc->gif_pdst)
! 493: free((caddr_t)sc->gif_pdst, M_IFADDR);
! 494: sa = (struct sockaddr *)malloc(dst->sa_len, M_IFADDR, M_WAITOK);
! 495: bcopy((caddr_t)dst, (caddr_t)sa, dst->sa_len);
! 496: sc->gif_pdst = sa;
! 497:
! 498: s = splnet();
! 499: ifp->if_flags |= IFF_RUNNING;
! 500: if_up(ifp); /* send up RTM_IFINFO */
! 501: splx(s);
! 502:
! 503: error = 0;
! 504: break;
! 505:
! 506: #ifdef SIOCDIFPHYADDR
! 507: case SIOCDIFPHYADDR:
! 508: if (sc->gif_psrc) {
! 509: free((caddr_t)sc->gif_psrc, M_IFADDR);
! 510: sc->gif_psrc = NULL;
! 511: }
! 512: if (sc->gif_pdst) {
! 513: free((caddr_t)sc->gif_pdst, M_IFADDR);
! 514: sc->gif_pdst = NULL;
! 515: }
! 516: /* change the IFF_{UP, RUNNING} flag as well? */
! 517: break;
! 518: #endif
! 519:
! 520: case SIOCGIFPSRCADDR:
! 521: #ifdef INET6
! 522: case SIOCGIFPSRCADDR_IN6:
! 523: #endif /* INET6 */
! 524: if (sc->gif_psrc == NULL) {
! 525: error = EADDRNOTAVAIL;
! 526: goto bad;
! 527: }
! 528: src = sc->gif_psrc;
! 529: switch (cmd) {
! 530: #ifdef INET
! 531: case SIOCGIFPSRCADDR:
! 532: dst = &ifr->ifr_addr;
! 533: size = sizeof(ifr->ifr_addr);
! 534: break;
! 535: #endif /* INET */
! 536: #ifdef INET6
! 537: case SIOCGIFPSRCADDR_IN6:
! 538: dst = (struct sockaddr *)
! 539: &(((struct in6_ifreq *)data)->ifr_addr);
! 540: size = sizeof(((struct in6_ifreq *)data)->ifr_addr);
! 541: break;
! 542: #endif /* INET6 */
! 543: default:
! 544: error = EADDRNOTAVAIL;
! 545: goto bad;
! 546: }
! 547: if (src->sa_len > size)
! 548: return (EINVAL);
! 549: bcopy((caddr_t)src, (caddr_t)dst, src->sa_len);
! 550: break;
! 551:
! 552: case SIOCGIFPDSTADDR:
! 553: #ifdef INET6
! 554: case SIOCGIFPDSTADDR_IN6:
! 555: #endif /* INET6 */
! 556: if (sc->gif_pdst == NULL) {
! 557: error = EADDRNOTAVAIL;
! 558: goto bad;
! 559: }
! 560: src = sc->gif_pdst;
! 561: switch (cmd) {
! 562: #ifdef INET
! 563: case SIOCGIFPDSTADDR:
! 564: dst = &ifr->ifr_addr;
! 565: size = sizeof(ifr->ifr_addr);
! 566: break;
! 567: #endif /* INET */
! 568: #ifdef INET6
! 569: case SIOCGIFPDSTADDR_IN6:
! 570: dst = (struct sockaddr *)
! 571: &(((struct in6_ifreq *)data)->ifr_addr);
! 572: size = sizeof(((struct in6_ifreq *)data)->ifr_addr);
! 573: break;
! 574: #endif /* INET6 */
! 575: default:
! 576: error = EADDRNOTAVAIL;
! 577: goto bad;
! 578: }
! 579: if (src->sa_len > size)
! 580: return (EINVAL);
! 581: bcopy((caddr_t)src, (caddr_t)dst, src->sa_len);
! 582: break;
! 583:
! 584: case SIOCGLIFPHYADDR:
! 585: if (sc->gif_psrc == NULL || sc->gif_pdst == NULL) {
! 586: error = EADDRNOTAVAIL;
! 587: goto bad;
! 588: }
! 589:
! 590: /* copy src */
! 591: src = sc->gif_psrc;
! 592: dst = (struct sockaddr *)
! 593: &(((struct if_laddrreq *)data)->addr);
! 594: size = sizeof(((struct if_laddrreq *)data)->addr);
! 595: if (src->sa_len > size)
! 596: return (EINVAL);
! 597: bcopy((caddr_t)src, (caddr_t)dst, src->sa_len);
! 598:
! 599: /* copy dst */
! 600: src = sc->gif_pdst;
! 601: dst = (struct sockaddr *)
! 602: &(((struct if_laddrreq *)data)->dstaddr);
! 603: size = sizeof(((struct if_laddrreq *)data)->dstaddr);
! 604: if (src->sa_len > size)
! 605: return (EINVAL);
! 606: bcopy((caddr_t)src, (caddr_t)dst, src->sa_len);
! 607: break;
! 608:
! 609: case SIOCSIFFLAGS:
! 610: /* if_ioctl() takes care of it */
! 611: break;
! 612:
! 613: case SIOCSIFMTU:
! 614: if (ifr->ifr_mtu < GIF_MTU_MIN || ifr->ifr_mtu > GIF_MTU_MAX)
! 615: error = EINVAL;
! 616: else
! 617: ifp->if_mtu = ifr->ifr_mtu;
! 618: break;
! 619:
! 620: default:
! 621: error = EINVAL;
! 622: break;
! 623: }
! 624: bad:
! 625: return (error);
! 626: }
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