x25

Autres langues

Langue: ja

Version: 1998-12-01 (openSuse - 09/10/07)

Section: 7 (Divers)

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x25, PF_X25 - ITU-T X.25 / ISO-8208 ¥×¥í¥È¥³¥ë¥¤¥ó¥¿¡¼¥Õ¥§¡¼¥¹

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#include <sys/socket.h>
#include <linux/x25.h>

x25_socket = socket(PF_X25, SOCK_SEQPACKET, 0);

ÀâÌÀ

X25 ¥½¥±¥Ã¥È¤Ï X.25 ¥Ñ¥±¥Ã¥ÈÁØ¥×¥í¥È¥³¥ë¤ËÂФ¹¤ë¥¤¥ó¥¿¡¼¥Õ¥§¡¼¥¹¤òÄ󶡤¹¤ë¡£ ¤³¤ì¤Ë¤è¤ê¡¢¥¢¥×¥ê¥±¡¼¥·¥ç¥ó¤Ï¥Ñ¥Ö¥ê¥Ã¥¯¤Ê X.25 ¥Ç¡¼¥¿¥Í¥Ã¥È¥ï¡¼¥¯¤Ç ÄÌ¿®¤¹¤ë¤³¤È¤¬¤Ç¤­¤ë¤è¤¦¤Ë¤Ê¤ë¡£ X.25 ¤Ï International Telecommunication Union's recommendation X.25 (X.25 DTE-DCE mode) ¤Çɸ½à²½¤µ¤ì¤Æ¤¤¤ë¡£ X25 ¥½¥±¥Ã¥È¤Ï¡¢Ãæ´ÖÁؤΤʤ¤ X.25 ¥Í¥Ã¥È¥ï¡¼¥¯ (X.25 DTE-DTE mode) ¤Ç¤ÎÄÌ¿®¤Ë¤âÍѤ¤¤ë¤³¤È¤¬¤Ç¤­¤ë¡£ DTE-DTE ¥â¡¼¥É¤Ï ISO-8208 ¤Ëµ­½Ò¤µ¤ì¤Æ¤¤¤ë¡£

¥á¥Ã¥»¡¼¥¸¶­³¦¤ÏÊݸ¤µ¤ì¤ë¡£¥½¥±¥Ã¥È¤«¤é¤Î read(2) ¤Ï¡¢È¿ÂЦ¤Î¥½¥±¥Ã¥È¤«¤é¤ÎÂбþ¤¹¤ë write(2) ¤ÈƱ¤¸Â礭¤µ¤Î¥Ç¡¼¥¿¤ò¼õ¤±¼è¤ê¡¢½ÐÎϤ¹¤ë¡£ ɬÍפ¬¤¢¤ë¾ì¹ç¤Ï¡¢¥«¡¼¥Í¥ë¤¬Ä¹¤¤¥á¥Ã¥»¡¼¥¸¤Î ʬ³ä (segmenting) ¤ÈºÆ¹½À® (re-assembling) ¤ò¹Ô¤¦¡£ ¤³¤ì¤Ë¤Ï X.25 ¤Î M ¥Ó¥Ã¥È¤¬ÍѤ¤¤é¤ì¤ë¡£ ¥á¥Ã¥»¡¼¥¸¥µ¥¤¥º¤Ë¤Ï¡¢¥Ï¡¼¥É¥³¡¼¥Ç¥£¥ó¥°¤µ¤ì¤¿¾å¸Â¤Ï¤Ê¤¤¡£ ¤·¤«¤·¡¢°ì»þŪ¤Ë¥·¥¹¥Æ¥à¥ê¥½¡¼¥¹¤¬Â­¤ê¤Ê¤«¤Ã¤¿¤ê¡¢ ¾¤ÎÀ©Ìó (¥½¥±¥Ã¥È¥á¥â¥ê¥Ð¥Ã¥Õ¥¡¤Î¥µ¥¤¥ºÀ©¸Â¤Ê¤É) ¤¬ ¸ú¤¤¤Æ¤·¤Þ¤¦¤È¡¢Ä¹¤¤¥á¥Ã¥»¡¼¥¸¤ÎºÆ¹½À®¤Ë¤Ï¼ºÇÔ¤¹¤ë¤«¤â¤·¤ì¤Ê¤¤¡£ ¤³¤Î¾ì¹ç¡¢¤½¤Î X.25 Àܳ¤Ï¥ê¥»¥Ã¥È¤µ¤ì¤ë¤³¤È¤Ë¤Ê¤ë¡£

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AF_X25 ¥½¥±¥Ã¥È¥¢¥É¥ì¥¹¥Õ¥¡¥ß¥ê¡¼¤Ï¡¢¥Í¥Ã¥È¥ï¡¼¥¯¥¢¥É¥ì¥¹¤òɽ¤¹¤¿¤á¤Ë struct sockaddr_x25 ¤òÍѤ¤¤ë¡£¤³¤ì¤Ï ITU-T recommendation X.121 ¤ÇÄêµÁ¤µ¤ì¤Æ¤¤¤ë¡£

struct sockaddr_x25 {

    sa_family_t sx25_family;    /* must be AF_X25 */

    x25_address sx25_addr;      /* X.121 Address */

};

sx25_addr ¤Ë¤Ï char ÇÛÎó x25_addr[] ¤ò´Þ¤Þ¤ì¤ë¡£¤³¤ì¤Ï 0 ¤Ç½ªÃ¼¤¹¤ëʸ»úÎó¤È¤·¤Æ²ò¼á¤µ¤ì¤ë¡£ sx25_addr.x25_addr[] ¤Ï 15 ¸Ä¤Þ¤Ç¤Î ASCII ʸ»ú¤ò´Þ¤à¤³¤È¤¬¤Ç¤­ (½ªÃ¼¤Î 0 ¤Ï´Þ¤Þ¤Ê¤¤)¡¢ ¤³¤ì¤¬ X.121 ¥¢¥É¥ì¥¹¤ò¤Ê¤¹¡£ 10 ¿Ê¤Î¿ôʸ»ú¡¢ `0' ¤«¤é `9' ¤Þ¤Ç¤À¤±¤¬µö¤µ¤ì¤ë¡£

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°Ê²¼¤Î X.25 ÆÃÍ­¤Î¥½¥±¥Ã¥È¥ª¥×¥·¥ç¥ó¤Ï¡¢ setsockopt(2) ¤ÇÀßÄê¤Ç¤­¡¢ getsockopt(2) ¤Ç¼èÆÀ¤Ç¤­¤ë¡£¤³¤Î¤È¤­¥ì¥Ù¥ë¥Ñ¥é¥á¡¼¥¿¤Ë¤Ï SOL_X25 ¤ò»ØÄꤹ¤ë¡£
X25_QBITINCL
X.25 ¤Î Q ¥Ó¥Ã¥È (Qualified ¥Ç¡¼¥¿¥Ó¥Ã¥È) ¤Ë¥æ¡¼¥¶¡¼¤¬¥¢¥¯¥»¥¹ ¤Ç¤­¤ë¤«¤É¤¦¤«¤ò¥³¥ó¥È¥í¡¼¥ë¤¹¤ë¡£À°¿ô¤Î°ú¿ô¤ò¼è¤ë¡£ 0 ¤Ë¥»¥Ã¥È¤¹¤ë¤È¡¢ Q ¥Ó¥Ã¥È¤Ïȯ¿®¥Ñ¥±¥Ã¥È¤Ë¤Ï·è¤·¤Æ¥»¥Ã¥È¤µ¤ì¤º¡¢ ¼õ¿®¥Ñ¥±¥Ã¥È¤Ç¤Ï̵»ë¤µ¤ì¤ë (¥Ç¥Õ¥©¥ë¥È)¡£ 1 ¤Ë¥»¥Ã¥È¤¹¤ë¤È¡¢¥½¥±¥Ã¥È¤«¤éÆɤࡢ¤¢¤ë¤¤¤Ï¥½¥±¥Ã¥È¤ËÁ÷¤ë ¥á¥Ã¥»¡¼¥¸¤½¤ì¤¾¤ì¤ËÀèƬ¥Ð¥¤¥È¤¬Á°ÃÖ¤µ¤ì¤ë¡£ ¥½¥±¥Ã¥È¤«¤éÆɤó¤À¥Ç¡¼¥¿¤Ç¤Ï¡¢ÀèƬ¥Ð¥¤¥È¤¬ 0 ¤À¤È¡¢ ¤³¤ÎÅþÃå¥Ç¡¼¥¿¥Ñ¥±¥Ã¥È¤ËÂбþ¤¹¤ë Q ¥Ó¥Ã¥È¤Ï¥»¥Ã¥È¤µ¤ì¤Æ¤¤¤Ê¤«¤Ã¤¿¤³¤È¤Ë¤Ê¤ë¡£ ÀèƬ¥Ð¥¤¥È¤¬ 1 ¤À¤È¡¢ÅþÃå¥Ç¡¼¥¿¥Ñ¥±¥Ã¥È¤Î Q ¥Ó¥Ã¥È¤¬¥»¥Ã¥È¤µ¤ì¤Æ¤¤¤¿¤³¤È¤Ë¤Ê¤ë¡£ ¥½¥±¥Ã¥È¤Ë½ñ¤­¹þ¤à¥Ç¡¼¥¿¤ÎÀèƬ¥Ð¥¤¥È¤¬ 1 ¤À¤È¡¢ ¤½¤Îȯ¿®¥Ñ¥±¥Ã¥È¤Î Q ¥Ó¥Ã¥È¤ò¥»¥Ã¥È¤¹¤ë¡£ 0 ¤À¤È¡¢ Q ¥Ó¥Ã¥È¤ò¥»¥Ã¥È¤·¤Ê¤¤¡£

¥Ð¡¼¥¸¥ç¥ó

PF_X25 ¥×¥í¥È¥³¥ë¥Õ¥¡¥ß¥ê¤Ï Linux 2.2 ¤Î¿·µ¡Ç½¤Ç¤¢¤ë¡£

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X.25 PLP ¼ÂÁõ¤Ï CONFIG_EXPERIMENTAL ¤Ê¤Î¤Ç¡¢¤¿¤¯¤µ¤ó¤¢¤ë¤À¤í¤¦¡£

¤³¤Î man ¥Ú¡¼¥¸¤Ï´°À®¤·¤Æ¤¤¤Ê¤¤¡£

¤Þ¤À¥¢¥×¥ê¥±¡¼¥·¥ç¥ó¥×¥í¥°¥é¥Þ¡¼ÍѤΥإåÀ¥Õ¥¡¥¤¥ë¤¬¤Ê¤¤¡£ ¥«¡¼¥Í¥ë¤Î¥Ø¥Ã¥À¥Õ¥¡¥¤¥ë <linux/x25.h> ¤ò¥¤¥ó¥¯¥ë¡¼¥É¤·¤Ê¤±¤ì¤Ð¤Ê¤é¤Ê¤¤¡£ CONFIG_EXPERIMENTAL ¤Ê¤Î¤Ç¡¢¾­Íè¤Î¥Ð¡¼¥¸¥ç¥ó¤Î¥¤¥ó¥¿¡¼¥Õ¥§¡¼¥¹¤Ç¤Ï ¥Ð¥¤¥Ê¥ê¸ß´¹À­¤¬¼º¤ï¤ì¤ë¤«¤â¤·¤ì¤Ê¤¤¡£

X.25 N-Reset ¥¤¥Ù¥ó¥È¤Ï¡¢¤Þ¤À¥æ¡¼¥¶¡¼¥×¥í¥»¥¹¤ËÅÁÇŤ·¤Ê¤¤¡£ ¤·¤¿¤¬¤Ã¤Æ¥ê¥»¥Ã¥È¤¬µ¯¤³¤ë¤È¡¢¥Ç¡¼¥¿¤ÏÄÌÃÎ̵¤·¤Ë¼º¤ï¤ì¤ë¡£

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socket(2), socket(7)

Jonathan Simon Naylor: "X.25 ¤ÎºÆʬÀϤȺƼÂÁõ"

URL ¤Ï ftp://ftp.pspt.fi/pub/ham/linux/ax25/x25doc.tgz