Changeset 429 for EcnlProtoTool/trunk/asp3_dcre/tinet/netinet/ip_igmp.c
- Timestamp:
- Jul 3, 2020, 7:19:17 PM (4 years ago)
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EcnlProtoTool/trunk/asp3_dcre/tinet/netinet/ip_igmp.c
r331 r429 5 5 * Tomakomai National College of Technology, JAPAN 6 6 * 7 * ãLì ÒÍCÈºÌ (1)`(4) Ìð©CFree Software Foundation 8 * ÉæÁÄö\³êÄ¢é GNU General Public License Ì Version 2 ÉL 9 * q³êÄ¢éðð½·êÉÀèC{\tgEFAi{\tgEFA 10 * ðüϵ½àÌðÜÞDȺ¯¶jðgpE¡»EüÏEÄzziȺC 11 * pÆÄÔj·é±Æð³Åø·éD 12 * (1) {\tgEFAð\[XR[hÌ`Åp·éêÉÍCãLÌì 13 * \¦C±Ìpð¨æѺL̳ÛØKèªC»ÌÜÜÌ`Å\[ 14 * XR[hÉÜÜêÄ¢é±ÆD 15 * (2) {\tgEFAðCCu`®ÈÇC¼Ì\tgEFAJÉg 16 * pÅ«é`ÅÄzz·éêÉÍCÄzzɺ¤hL 17 gip 18 * Ò}j 19 AÈÇjÉCãLÌì \¦C±Ìpð¨æѺL 20 * ̳ÛØKèðfÚ·é±ÆD 21 * (3) {\tgEFAðC@íÉgÝÞÈÇC¼Ì\tgEFAJÉg 22 * pÅ«È¢`ÅÄzz·éêÉÍCÌðð½·±ÆD 23 * (a) Äzzɺ¤hL 24 gipÒ}j 25 AÈÇjÉCãLÌ 26 * ì \¦C±Ìpð¨æѺL̳ÛØKèðfÚ·é±ÆD 27 * (4) {\tgEFAÌpÉæè¼ÚIܽÍÔÚIɶ¶é¢©Èé¹ 28 * Q©çàCãLì Ò¨æÑTOPPERSvWFNgðÆÓ·é±ÆD 7 * ä¸è¨èä½æ¨©è 8 ã¯ï¼ä»¥ä¸ã® (1)ï½(4) ã®æ¡ä»¶ãï¼Free Software Foundation 9 * ã«ãã£ã¦å 10 ¬è¡¨ããã¦ãã GNU General Public License ã® Version 2 ã«è¨ 11 * è¿°ããã¦ããæ¡ä»¶ãæºããå ´åã«éãï¼æ¬ã½ããã¦ã§ã¢ï¼æ¬ã½ããã¦ã§ã¢ 12 * ãæ¹å¤ãããã®ãå«ãï¼ä»¥ä¸åãï¼ã使ç¨ã»è¤è£½ã»æ¹å¤ã»åé 13 å¸ï¼ä»¥ä¸ï¼ 14 * å©ç¨ã¨å¼ã¶ï¼ãããã¨ãç¡åã§è¨±è«¾ããï¼ 15 * (1) æ¬ã½ããã¦ã§ã¢ãã½ã¼ã¹ã³ã¼ãã®å½¢ã§å©ç¨ããå ´åã«ã¯ï¼ä¸è¨ã®èä½ 16 * 権表示ï¼ãã®å©ç¨æ¡ä»¶ããã³ä¸è¨ã®ç¡ä¿è¨¼è¦å®ãï¼ãã®ã¾ã¾ã®å½¢ã§ã½ã¼ 17 * ã¹ã³ã¼ãä¸ã«å«ã¾ãã¦ãããã¨ï¼ 18 * (2) æ¬ã½ããã¦ã§ã¢ãï¼ã©ã¤ãã©ãªå½¢å¼ãªã©ï¼ä»ã®ã½ããã¦ã§ã¢éçºã«ä½¿ 19 * ç¨ã§ããå½¢ã§åé 20 å¸ããå ´åã«ã¯ï¼åé 21 å¸ã«ä¼´ãããã¥ã¡ã³ãï¼å©ç¨ 22 * è 23 ããã¥ã¢ã«ãªã©ï¼ã«ï¼ä¸è¨ã®èä½æ¨©è¡¨ç¤ºï¼ãã®å©ç¨æ¡ä»¶ããã³ä¸è¨ 24 * ã®ç¡ä¿è¨¼è¦å®ãæ²è¼ãããã¨ï¼ 25 * (3) æ¬ã½ããã¦ã§ã¢ãï¼æ©å¨ã«çµã¿è¾¼ããªã©ï¼ä»ã®ã½ããã¦ã§ã¢éçºã«ä½¿ 26 * ç¨ã§ããªãå½¢ã§åé 27 å¸ããå ´åã«ã¯ï¼æ¬¡ã®æ¡ä»¶ãæºãããã¨ï¼ 28 * (a) åé 29 å¸ã«ä¼´ãããã¥ã¡ã³ãï¼å©ç¨è 30 ããã¥ã¢ã«ãªã©ï¼ã«ï¼ä¸è¨ã®è 31 * ä½æ¨©è¡¨ç¤ºï¼ãã®å©ç¨æ¡ä»¶ããã³ä¸è¨ã®ç¡ä¿è¨¼è¦å®ãæ²è¼ãããã¨ï¼ 32 * (4) æ¬ã½ããã¦ã§ã¢ã®å©ç¨ã«ããç´æ¥çã¾ãã¯éæ¥çã«çãããããªãæ 33 * 害ãããï¼ä¸è¨èä½æ¨©è 34 ããã³TOPPERSããã¸ã§ã¯ããå 35 責ãããã¨ï¼ 29 36 * 30 * {\tgEFAÍC³ÛØÅñ³êÄ¢éàÌÅ éDãLì Ò¨ 31 * æÑTOPPERSvWFNgÍC{\tgEFAÉÖµÄC»ÌKpÂ\«à 32 * ÜßÄC¢©ÈéÛØàsíÈ¢DܽC{\tgEFAÌpÉæè¼ 33 * ÚIܽÍÔÚIɶ¶½¢©Èé¹QÉÖµÄàC»ÌÓCðíÈ¢D 37 * æ¬ã½ããã¦ã§ã¢ã¯ï¼ç¡ä¿è¨¼ã§æä¾ããã¦ãããã®ã§ããï¼ä¸è¨èä½æ¨©è 38 ã 39 * ãã³TOPPERSããã¸ã§ã¯ãã¯ï¼æ¬ã½ããã¦ã§ã¢ã«é¢ãã¦ï¼ãã®é©ç¨å¯è½æ§ã 40 * å«ãã¦ï¼ãããªãä¿è¨¼ãè¡ããªãï¼ã¾ãï¼æ¬ã½ããã¦ã§ã¢ã®å©ç¨ã«ããç´ 41 * æ¥çã¾ãã¯éæ¥çã«çãããããªãæ害ã«é¢ãã¦ãï¼ãã®è²¬ä»»ãè² ããªãï¼ 34 42 * 35 43 * @(#) $Id$ … … 88 96 89 97 static bool_t igmp_send_report_v2(T_IN4_ADDR dst); 90 static uint16_t igmp_get_timer(T_IGMP_ENTRY *entry);98 static int16_t igmp_get_timer(T_IGMP_ENTRY *entry); 91 99 92 100 ER igmp_set_loop(T_UDP_CEP *cep, uint8_t optval) … … 155 163 T_IGMP_ENTRY *entry = NULL; 156 164 int i; 157 uint16_t min;158 165 T_IFNET *ifp = IF_GET_IFNET(); 159 166 ER ret = E_NOMEM; … … 168 175 entry = &igmp_groups[i]; 169 176 if (entry->timer == -1) { 170 entry->timer = igmp_get_timer(entry);177 entry->timer = 0; 171 178 entry->ip_addr = optval->imr_multiaddr; 172 179 ret = E_OK; … … 184 191 T_IGMP_ENTRY *entry = NULL; 185 192 int i; 186 uint16_t min;187 193 ER ret = E_PAR; 188 194 T_IFNET *ifp = IF_GET_IFNET(); … … 223 229 T_NET_BUF *input = *inputp; 224 230 T_IGMPV2_HDR *igmph; 225 T_IN4_ADDR addr;226 231 uint_t len, align; 227 232 T_IP4_HDR *ip4h; … … 234 239 NET_COUNT_IGMP(net_count_igmp.in_packets, 1); 235 240 236 /* ICMP wb_Ì·³ð`FbN·éB*/241 /* ICMP ãããã®é·ãããã§ãã¯ããã*/ 237 242 if (input->len < IF_IP4_IGMP_HDR_SIZE) { 238 243 NET_COUNT_IGMP(net_count_igmp.in_err_packets, 1); … … 243 248 igmph = (T_IGMPV2_HDR *)(input->buf + *offp); 244 249 245 /* 4 INebg«EÌf[^· */250 /* 4 ãªã¯ãããå¢çã®ãã¼ã¿é· */ 246 251 len = input->len - *offp; 247 252 align = (len + 3) >> 2 << 2; 248 253 249 /* 4 INebg«EÜÅpfBOÅßéB*/254 /* 4 ãªã¯ãããå¢çã¾ã§ããã£ã³ã°ã§åããã*/ 250 255 if (align > len) 251 256 memset((uint8_t*)input->buf + input->len, 0, (size_t)(align - len)); 252 257 253 /* `FbNTðvZ·éB*/258 /* ãã§ãã¯ãµã ãè¨ç®ããã*/ 254 259 if (in_cksum(igmph, align) != 0) { 255 260 NET_COUNT_IGMP(net_count_igmp.in_err_packets, 1); … … 257 262 } 258 263 259 /* bZ[WÌ^Éæèªò·éB*/264 /* ã¡ãã»ã¼ã¸ã®åã«ããåå²ããã*/ 260 265 switch (igmph->type) { 261 266 case IGMP_MEMBERSHIP_QUERY: … … 263 268 ret = false; 264 269 265 /* QÁÌO[vAhX©çÌNG[Ìê*/270 /* åå ä¸ã®ã°ã«ã¼ãã¢ãã¬ã¹ããã®ã¯ã¨ãªã¼ã®å ´å */ 266 271 syscall(wai_sem(SEM_IGMP_GROUP_LOCK)); 267 272 268 273 for (i = 0; i < NUM_IGMP_ENTRY; i++) { 269 274 entry = &igmp_groups[i]; 270 if ((entry->timer >= 0) && (entry->ip_addr == addr)) {275 if ((entry->timer >= 0) && (entry->ip_addr == igmph->addr)) { 271 276 entry->resptime = igmph->time; 272 277 ret = true; … … 278 283 279 284 if (ret) { 280 /* o[Vbv|[gðM*/285 /* ã¡ã³ãã¼ã·ãããªãã¼ããéä¿¡ */ 281 286 igmp_send_report_v2(ip4h->src); 282 287 } … … 293 298 T_IGMPV2_HDR *igmph; 294 299 T_NET_BUF *output; 295 uint_t len , align;300 uint_t len = 0, align; 296 301 297 302 if (in4_get_datagram(&output, (uint_t)(IF_IP4_IGMP_HDR_SIZE + len), 0, … … 300 305 return false; 301 306 302 /* IGMP wb_ðÝè·éB*/307 /* IGMP ããããè¨å®ããã*/ 303 308 igmph = GET_IGMPV2_HDR(output, IF_IP4_IGMP_HDR_OFFSET); 304 309 igmph->type = IGMP_MEMBERSHIP_REPORT_V2; 305 310 igmph->time = 0; 306 igmph->addr = dst;307 308 /* 4 INebg«EÌf[^· */311 igmph->addr = htonl(dst); 312 313 /* 4 ãªã¯ãããå¢çã®ãã¼ã¿é· */ 309 314 align = (len + 3) >> 2 << 2; 310 315 311 /* 4 INebg«EÜÅpfBOÅßéB*/316 /* 4 ãªã¯ãããå¢çã¾ã§ããã£ã³ã°ã§åããã*/ 312 317 if (align > len) 313 memset((uint8_t*)GET_IGMP_SDU(output, IF_IP4_IGMP_HDR_OFFSET) + IP4_HDR_SIZE +len,318 memset((uint8_t*)GET_IGMP_SDU(output, IF_IP4_IGMP_HDR_OFFSET) + len, 314 319 0, (size_t)(align - len)); 315 320 316 /* `FbNTðvZ·éB*/321 /* ãã§ãã¯ãµã ãè¨ç®ããã*/ 317 322 igmph->sum = 0; 318 igmph->sum = in_cksum(igmph, (uint_t)(I F_IP4_IGMP_HDR_SIZE + align));319 320 /* M·éB*/323 igmph->sum = in_cksum(igmph, (uint_t)(IGMP_HDR_SIZE + align)); 324 325 /* éä¿¡ããã*/ 321 326 NET_COUNT_IGMP(net_count_igmp.out_octets, 322 327 output->len - GET_IF_IP4_HDR_SIZE(output)); … … 330 335 331 336 /* 332 * igmp_timer -- IGMP ¤Ê^C}[ 337 * igmp_timer -- IGMP å 338 ±éã¿ã¤ãã¼ 333 339 */ 334 340 static void igmp_timer(void *ignore) … … 361 367 362 368 /* 363 * igmp_init -- IGMP @\ðú»·éB369 * igmp_init -- IGMP æ©è½ãåæåããã 364 370 */ 365 371 366 372 void igmp_init(void) 367 373 { 368 T_IGMP_ENTRY *entry = NULL;369 374 int i; 370 375 … … 397 402 } 398 403 399 uint16_t igmp_get_timer(T_IGMP_ENTRY *entry)400 { 401 uint16_t time = entry->resptime;404 int16_t igmp_get_timer(T_IGMP_ENTRY *entry) 405 { 406 int16_t time = entry->resptime; 402 407 403 408 if (time == 0) 404 time = 10;405 406 return net_rand() / (0x7fffffff / time);409 time = 590; 410 411 return (int16_t)(net_rand() % time) + 10; 407 412 } 408 413
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