openwrt/package/linux-atm/patches/100-br2684.patch

   1 diff -ruN linux-atm-2.4.1/configure.in linux-atm-2.4.1.new/configure.in
   2 --- linux-atm-2.4.1/configure.in        2003-04-25 04:17:05.000000000 +0200
   3 +++ linux-atm-2.4.1.new/configure.in    2005-07-27 15:45:49.532396543 +0200
   4 @@ -153,26 +153,6 @@
   5                 src/Makefile \
   6                 src/include/Makefile \
   7                 src/lib/Makefile \
   8 -               src/test/Makefile \
   9 -               src/debug/Makefile \
  10 -               src/qgen/Makefile \
  11 -               src/saal/Makefile \
  12 -               src/sigd/Makefile \
  13 -               src/maint/Makefile \
  14 -               src/arpd/Makefile \
  15 -               src/ilmid/Makefile \
  16 -               src/ilmid/asn1/Makefile \
  17 -               src/man/Makefile \
  18 -               src/led/Makefile \
  19 -               src/lane/Makefile \
  20 -               src/mpoad/Makefile \
  21 -               src/switch/Makefile \
  22 -               src/switch/debug/Makefile \
  23 -               src/switch/tcp/Makefile \
  24 -               src/config/Makefile \
  25 -               src/config/init-redhat/Makefile \
  26 -               src/extra/Makefile \
  27 -               src/extra/linux-atm.spec \
  28 -               src/extra/ANS/Makefile
  29 +               src/br2684/Makefile \
  30                 )
  31
  32 diff -ruN linux-atm-2.4.1/src/br2684/Makefile linux-atm-2.4.1.new/src/br2684/Makefile
  33 --- linux-atm-2.4.1/src/br2684/Makefile 1970-01-01 02:00:00.000000000 +0200
  34 +++ linux-atm-2.4.1.new/src/br2684/Makefile     2002-07-15 23:44:25.000000000 +0200
  35 @@ -0,0 +1,13 @@
  36 +PREFIX=${TI_FILESYSTEM}
  37 +
  38 +all: br2684ctl
  39 +
  40 +br2684ctl: br2684ctl.c
  41 +       gcc -latm -o br2684ctl br2684ctl.c
  42 +       strip br2684ctl
  43 +
  44 +install: br2684ctl
  45 +       cp br2684ctl $(PREFIX)/usr/sbin/
  46 +
  47 +clean:
  48 +       rm -rf br2684ctl *.o
  49 diff -ruN linux-atm-2.4.1/src/Makefile.am linux-atm-2.4.1.new/src/Makefile.am
  50 --- linux-atm-2.4.1/src/Makefile.am     2001-10-03 23:14:53.000000000 +0200
  51 +++ linux-atm-2.4.1.new/src/Makefile.am 2005-07-27 15:33:52.389309711 +0200
  52 @@ -1,3 +1,2 @@
  53 -SUBDIRS = include lib test debug qgen saal sigd maint arpd ilmid man led lane \
  54 -               mpoad switch config extra
  55 +SUBDIRS = include lib br2684
  56
  57
  58 diff -Nur linux-atm-2.4.1.orig/src/include/linux/atmbr2684.h linux-atm-2.4.1/src/include/linux/atmbr2684.h
  59 --- linux-atm-2.4.1.orig/src/include/linux/atmbr2684.h  1970-01-01 01:00:00.000000000 +0100
  60 +++ linux-atm-2.4.1/src/include/linux/atmbr2684.h       2005-11-13 00:06:42.000000000 +0100
  61 @@ -0,0 +1,117 @@
  62 +#ifndef _LINUX_ATMBR2684_H
  63 +#define _LINUX_ATMBR2684_H
  64 +
  65 +#include <linux/atm.h>
  66 +#include <linux/if.h>          /* For IFNAMSIZ */
  67 +#include <linux/if_ether.h>    /* ETH_P_* */
  68 +
  69 +/*
  70 + * Type of media we're bridging (ethernet, token ring, etc)  Currently only
  71 + * ethernet is supported
  72 + */
  73 +#define BR2684_MEDIA_ETHERNET  (0)     /* 802.3 */
  74 +#define BR2684_MEDIA_802_4     (1)     /* 802.4 */
  75 +#define BR2684_MEDIA_TR                (2)     /* 802.5 - token ring */
  76 +#define BR2684_MEDIA_FDDI      (3)
  77 +#define BR2684_MEDIA_802_6     (4)     /* 802.6 */
  78 +
  79 +/*
  80 + * Is there FCS inbound on this VC?  This currently isn't supported.
  81 + */
  82 +#define BR2684_FCSIN_NO                (0)
  83 +#define BR2684_FCSIN_IGNORE    (1)
  84 +#define BR2684_FCSIN_VERIFY    (2)
  85 +
  86 +/*
  87 + * Is there FCS outbound on this VC?  This currently isn't supported.
  88 + */
  89 +#define BR2684_FCSOUT_NO       (0)
  90 +#define BR2684_FCSOUT_SENDZERO (1)
  91 +#define BR2684_FCSOUT_GENERATE (2)
  92 +
  93 +/*
  94 + * Does this VC include LLC encapsulation?
  95 + */
  96 +#define BR2684_ENCAPS_VC       (0)     /* VC-mux */
  97 +#define BR2684_ENCAPS_LLC      (1)
  98 +#define BR2684_ENCAPS_AUTODETECT (2)   /* Unsuported */
  99 +
 100 +/*
 101 + * Is this VC bridged or routed?
 102 + */
 103 +
 104 +#define        BR2684_PAYLOAD_ROUTED   (0)
 105 +#define        BR2684_PAYLOAD_BRIDGED  (1)
 106 +
 107 +
 108 +/*
 109 + * This is for the ATM_NEWBACKENDIF call - these are like socket families:
 110 + * the first element of the structure is the backend number and the rest
 111 + * is per-backend specific
 112 + */
 113 +struct atm_newif_br2684 {
 114 +       atm_backend_t backend_num;      /* ATM_BACKEND_BR2684 */
 115 +       int media;              /* BR2684_MEDIA_* */
 116 +       char ifname[IFNAMSIZ];
 117 +       int mtu;
 118 +       int payload;            /* bridged or routed */
 119 +};
 120 +
 121 +/*
 122 + * This structure is used to specify a br2684 interface - either by a
 123 + * positive integer (returned by ATM_NEWBACKENDIF) or the interfaces name
 124 + */
 125 +#define BR2684_FIND_BYNOTHING  (0)
 126 +#define BR2684_FIND_BYNUM      (1)
 127 +#define BR2684_FIND_BYIFNAME   (2)
 128 +struct br2684_if_spec {
 129 +       int method;             /* BR2684_FIND_* */
 130 +       union {
 131 +               char ifname[IFNAMSIZ];
 132 +               int devnum;
 133 +       } spec;
 134 +};
 135 +
 136 +/*
 137 + * This is for the ATM_SETBACKEND call - these are like socket families:
 138 + * the first element of the structure is the backend number and the rest
 139 + * is per-backend specific
 140 + */
 141 +struct atm_backend_br2684 {
 142 +       atm_backend_t backend_num;      /* ATM_BACKEND_BR2684 */
 143 +       struct br2684_if_spec ifspec;
 144 +       int fcs_in;             /* BR2684_FCSIN_* */
 145 +       int fcs_out;            /* BR2684_FCSOUT_* */
 146 +       int fcs_auto;           /* 1: fcs_{in,out} disabled if no FCS rx'ed */
 147 +       int encaps;             /* BR2684_ENCAPS_* */
 148 +       int payload;            /* BR2684_PAYLOAD_* */
 149 +       int has_vpiid;          /* 1: use vpn_id - Unsupported */
 150 +       __u8 vpn_id[7];
 151 +       int send_padding;       /* unsupported */
 152 +       int min_size;           /* we will pad smaller packets than this */
 153 +};
 154 +
 155 +/*
 156 + * The BR2684_SETFILT ioctl is an experimental mechanism for folks
 157 + * terminating a large number of IP-only vcc's.  When netfilter allows
 158 + * efficient per-if in/out filters, this support will be removed
 159 + */
 160 +struct br2684_filter {
 161 +       __u32 prefix;           /* network byte order */
 162 +       __u32 netmask;          /* 0 = disable filter */
 163 +};
 164 +
 165 +struct br2684_filter_set {
 166 +       struct br2684_if_spec ifspec;
 167 +       struct br2684_filter filter;
 168 +};
 169 +
 170 +enum br2684_payload {
 171 +       p_routed = BR2684_PAYLOAD_ROUTED,
 172 +       p_bridged = BR2684_PAYLOAD_BRIDGED,
 173 +};
 174 +
 175 +#define BR2684_SETFILT _IOW( 'a', ATMIOC_BACKEND + 0, \
 176 +                               struct br2684_filter_set)
 177 +
 178 +#endif                         /* _LINUX_ATMBR2684_H */
 179 diff Nur linux-atm-2.4.1.orig/src/br2684/br2684ctl.c linux-atm-2.4.1/src/br2684/br2684ctl.c
 180 --- linux-atm-2.4.1.orig/src/br2684/br2684ctl.c
 181 +++ linux-atm-2.4.1/src/br2684/br2684ctl.c
 182 @@ -0,0 +1,302 @@
 183 +#include <stdio.h>
 184 +#include <stdlib.h>
 185 +#include <unistd.h>
 186 +#include <errno.h>
 187 +#include <sys/ioctl.h>
 188 +#include <string.h>
 189 +#include <syslog.h>
 190 +#include <atm.h>
 191 +#include <linux/atmdev.h>
 192 +#include <linux/atmbr2684.h>
 193 +
 194 +/* Written by Marcell GAL <cell@sch.bme.hu> to make use of the */
 195 +/* ioctls defined in the br2684... kernel patch */
 196 +/* Compile with cc -o br2684ctl br2684ctl.c -latm */
 197 +
 198 +/*
 199 +  Modified feb 2001 by Stephen Aaskov (saa@lasat.com)
 200 +  - Added daemonization code
 201 +  - Added syslog
 202 +
 203 +  TODO: Delete interfaces after exit?
 204 +*/
 205 +
 206 +
 207 +#define LOG_NAME "RFC1483/2684 bridge"
 208 +#define LOG_OPTION     LOG_PERROR
 209 +#define LOG_FACILITY   LOG_LOCAL0
 210 +
 211 +
 212 +int lastsock, lastitf;
 213 +
 214 +void fatal(char *str, int i)
 215 +{
 216 +       syslog(LOG_ERR, "Fatal: %s", str);
 217 +       exit(-2);
 218 +};
 219 +
 220 +
 221 +void exitFunc(void)
 222 +{
 223 +       syslog(LOG_PID, "Daemon terminated\n");
 224 +}
 225 +
 226 +
 227 +int create_pidfile(char *nstr)
 228 +{
 229 +       FILE *pidfile = NULL;
 230 +       char name[20];
 231 +       int num;
 232 +
 233 +       if (nstr == NULL)
 234 +               return -1;
 235 +       num = atoi(nstr);
 236 +       if (num < 0)
 237 +               return -1;
 238 +
 239 +       snprintf(name, 20, "/var/run/nas%d.pid", num);
 240 +       pidfile = fopen(name, "w");
 241 +       if (pidfile == NULL)
 242 +               return -1;
 243 +       fprintf(pidfile, "%d", getpid());
 244 +       fclose(pidfile);
 245 +
 246 +       return 0;
 247 +}
 248 +
 249 +int create_br(char *nstr, int payload)
 250 +{
 251 +       int num, err;
 252 +
 253 +       if (lastsock < 0) {
 254 +               lastsock = socket(PF_ATMPVC, SOCK_DGRAM, ATM_AAL5);
 255 +       }
 256 +       if (lastsock < 0) {
 257 +               syslog(LOG_ERR, "socket creation failed: %s",
 258 +                      strerror(errno));
 259 +       } else {
 260 +               /* create the device with ioctl: */
 261 +               num = atoi(nstr);
 262 +               if (num >= 0 && num < 1234567890) {
 263 +                       struct atm_newif_br2684 ni;
 264 +                       ni.backend_num = ATM_BACKEND_BR2684;
 265 +                       ni.media = BR2684_MEDIA_ETHERNET;
 266 +                       ni.mtu = 1500;
 267 +                       ni.payload = payload;   /* bridged or routed */
 268 +                       sprintf(ni.ifname, "nas%d", num);
 269 +                       err = ioctl(lastsock, ATM_NEWBACKENDIF, &ni);
 270 +
 271 +                       if (err == 0)
 272 +                               syslog(LOG_INFO,
 273 +                                      "Interface \"%s\" created sucessfully\n",
 274 +                                      ni.ifname);
 275 +                       else
 276 +                               syslog(LOG_INFO,
 277 +                                      "Interface \"%s\" could not be created, reason: %s\n",
 278 +                                      ni.ifname, strerror(errno));
 279 +                       lastitf = num;  /* even if we didn't create, because existed, assign_vcc wil want to know it! */
 280 +               } else {
 281 +                       syslog(LOG_ERR, "err: strange interface number %d",
 282 +                              num);
 283 +               }
 284 +       }
 285 +       return 0;
 286 +}
 287 +
 288 +
 289 +int assign_vcc(char *astr, int encap, int payload, int bufsize)
 290 +{
 291 +       int err, errno;
 292 +       struct atm_qos qos;
 293 +       struct sockaddr_atmpvc addr;
 294 +       int fd;
 295 +       struct atm_backend_br2684 be;
 296 +
 297 +       memset(&addr, 0, sizeof(addr));
 298 +       err =
 299 +           text2atm(astr, (struct sockaddr *) (&addr), sizeof(addr),
 300 +                    T2A_PVC);
 301 +       if (err != 0)
 302 +               syslog(LOG_ERR,
 303 +                      "Could not parse ATM parameters (error=%d)\n", err);
 304 +
 305 +#if 0
 306 +       addr.sap_family = AF_ATMPVC;
 307 +       addr.sap_addr.itf = itf;
 308 +       addr.sap_addr.vpi = 0;
 309 +       addr.sap_addr.vci = vci;
 310 +#endif
 311 +       syslog(LOG_INFO,
 312 +              "Communicating over ATM %d.%d.%d, encapsulation: %s\n",
 313 +              addr.sap_addr.itf, addr.sap_addr.vpi, addr.sap_addr.vci,
 314 +              encap ? "VC mux" : "LLC");
 315 +
 316 +       if ((fd = socket(PF_ATMPVC, SOCK_DGRAM, ATM_AAL5)) < 0)
 317 +               syslog(LOG_ERR, "failed to create socket %d, reason: %s",
 318 +                      errno, strerror(errno));
 319 +
 320 +
 321 +       memset(&qos, 0, sizeof(qos));
 322 +       qos.aal = ATM_AAL5;
 323 +       qos.txtp.traffic_class = ATM_UBR;
 324 +       qos.txtp.max_sdu = 1524;
 325 +       qos.txtp.pcr = ATM_MAX_PCR;
 326 +       qos.rxtp = qos.txtp;
 327 +
 328 +       if ((err =
 329 +            setsockopt(fd, SOL_SOCKET, SO_SNDBUF, &bufsize,
 330 +                       sizeof(bufsize))))
 331 +               syslog(LOG_ERR, "setsockopt SO_SNDBUF: (%d) %s\n", err,
 332 +                      strerror(err));
 333 +
 334 +       if (setsockopt(fd, SOL_ATM, SO_ATMQOS, &qos, sizeof(qos)) < 0)
 335 +               syslog(LOG_ERR, "setsockopt SO_ATMQOS %d", errno);
 336 +
 337 +       err =
 338 +           connect(fd, (struct sockaddr *) &addr,
 339 +                   sizeof(struct sockaddr_atmpvc));
 340 +
 341 +       if (err < 0)
 342 +               fatal("failed to connect on socket", err);
 343 +
 344 +       /* attach the vcc to device: */
 345 +
 346 +       be.backend_num = ATM_BACKEND_BR2684;
 347 +       be.ifspec.method = BR2684_FIND_BYIFNAME;
 348 +       sprintf(be.ifspec.spec.ifname, "nas%d", lastitf);
 349 +       be.fcs_in = BR2684_FCSIN_NO;
 350 +       be.fcs_out = BR2684_FCSOUT_NO;
 351 +       be.fcs_auto = 0;
 352 +       be.encaps = encap ? BR2684_ENCAPS_VC : BR2684_ENCAPS_LLC;
 353 +       be.payload = payload;
 354 +       be.has_vpiid = 0;
 355 +       be.send_padding = 0;
 356 +       be.min_size = 0;
 357 +       err = ioctl(fd, ATM_SETBACKEND, &be);
 358 +       if (err == 0)
 359 +               syslog(LOG_INFO, "Interface configured");
 360 +       else {
 361 +               syslog(LOG_ERR, "Could not configure interface:%s",
 362 +                      strerror(errno));
 363 +               exit(2);
 364 +       }
 365 +       return fd;
 366 +}
 367 +
 368 +
 369 +
 370 +void usage(char *s)
 371 +{
 372 +       printf
 373 +           ("usage: %s [-b] [[-c number] [-e 0|1] [-p 0|1] [-t 4|6] [-a [itf.]vpi.vci]*]*\n",
 374 +            s);
 375 +       exit(1);
 376 +}
 377 +
 378 +
 379 +
 380 +int main(int argc, char **argv)
 381 +{
 382 +       int c, background = 0, encap = 0, sndbuf = 8192, payload = 1;
 383 +       char *itfnum = NULL;
 384 +
 385 +       lastsock = -1;
 386 +       lastitf = 0;
 387 +
 388 +       openlog(LOG_NAME, LOG_OPTION, LOG_FACILITY);
 389 +       if (argc > 1)
 390 +               while ((c = getopt(argc, argv, "a:bc:e:s:p:t:?h")) != EOF)
 391 +                       switch (c) {
 392 +                       case 'a':
 393 +                               assign_vcc(optarg, encap, payload, sndbuf);
 394 +                               break;
 395 +                       case 'b':
 396 +                               background = 1;
 397 +                               break;
 398 +                       case 'c':
 399 +                               create_br(optarg, payload);
 400 +                               itfnum = strdup(optarg);
 401 +                               break;
 402 +                       case 'e':
 403 +                               encap = (atoi(optarg));
 404 +                               if (encap < 0) {
 405 +                                       syslog(LOG_ERR,
 406 +                                              "invalid encapsulation: %s:\n",
 407 +                                              optarg);
 408 +                                       encap = 0;
 409 +                               }
 410 +                               break;
 411 +                       case 's':
 412 +                               sndbuf = (atoi(optarg));
 413 +                               if (sndbuf < 0) {
 414 +                                       syslog(LOG_ERR,
 415 +                                              "Invalid sndbuf: %s, using size of 8192 instead\n",
 416 +                                              optarg);
 417 +                                       sndbuf = 8192;
 418 +                               }
 419 +                               break;
 420 +                       case 'p':       /* payload type: routed (0) or bridged (1) */
 421 +                               payload = atoi(optarg);
 422 +                               break;
 423 +                       case '?':
 424 +                       case 'h':
 425 +                       default:
 426 +                               usage(argv[0]);
 427 +       } else
 428 +               usage(argv[0]);
 429 +
 430 +       if (argc != optind)
 431 +               usage(argv[0]);
 432 +
 433 +       if (lastsock >= 0)
 434 +               close(lastsock);
 435 +
 436 +       if (background) {
 437 +               pid_t pid;
 438 +
 439 +               pid = fork();
 440 +               if (pid < 0) {
 441 +                       fprintf(stderr, "Error detaching\n");
 442 +                       exit(2);
 443 +               } else if (pid)
 444 +                       exit(0);        // This is the parent
 445 +
 446 +               // Become a process group and session group leader
 447 +               if (setsid() < 0) {
 448 +                       fprintf(stderr, "Could not set process group\n");
 449 +                       exit(2);
 450 +               }
 451 +               // Fork again to let process group leader exit
 452 +               pid = fork();
 453 +               if (pid < 0) {
 454 +                       fprintf(stderr,
 455 +                               "Error detaching during second fork\n");
 456 +                       exit(2);
 457 +               } else if (pid)
 458 +                       exit(0);        // This is the parent
 459 +
 460 +               // Now we're ready for buisness
 461 +               chdir("/");     // Don't keep directories in use
 462 +               close(0);
 463 +               close(1);
 464 +               close(2);       // Close stdin, -out and -error
 465 +               /*
 466 +                  Note that this implementation does not keep an open
 467 +                  stdout/err.
 468 +                  If we need them they can be opened now
 469 +                */
 470 +
 471 +       }
 472 +
 473 +       if (itfnum != NULL) {
 474 +               create_pidfile(itfnum);
 475 +               free(itfnum);
 476 +       }
 477 +
 478 +       syslog(LOG_INFO, "RFC 1483/2684 bridge daemon started\n");
 479 +       atexit(exitFunc);
 480 +
 481 +       while (1)
 482 +               sleep(30);      /* to keep the sockets... */
 483 +       return 0;
 484 +}