1 .\" This man page is Copyright (C) 1999 Andi Kleen <ak@muc.de>.
2 .\" Permission is granted to distribute possibly modified copies
3 .\" of this page provided the header is included verbatim,
4 .\" and in case of nontrivial modification author and date
5 .\" of the modification is added to the header.
6 .\" $Id: packet.7,v 1.12 2001/06/19 07:07:38 argrath Exp $
8 .\" Japanese Version Copyright (c) 1999 NAKANO Takeo all rights reserved.
9 .\" Translated 1999-12-06, NAKANO Takeo <nakano@apm.seikei.ac.jp>
10 .\" Updated 2001-02-13, Kentaro Shirakata <argrath@ub32.org>
11 .\" Updated 2005-02-21, Akihiro MOTOKI <amotoki@dd.iij4u.or.jp>
13 .\"WORD physical layer ʪÍýÁØ
14 .\"WORD link level header(s) ¥ê¥ó¥¯¥ì¥Ù¥ë¥Ø¥Ã¥À
15 .\"WORD phyxical header(s) ʪÍý¥Ø¥Ã¥À
16 .\"WORD effective user id ¼Â¸ú¥æ¡¼¥¶¡¼ ID
17 .\"WORD capability ¥±¡¼¥Ñ¥Ó¥ê¥Æ¥£
18 .\"WORD pending error Ãٱ䥨¥é¡¼
19 .\"WORD promiscuous mode ̵º¹Ê̥⡼¥É
21 .TH PACKET 7 2008-08-08 "Linux" "Linux Programmer's Manual"
23 packet, AF_PACKET \- ¥Ç¥Ð¥¤¥¹¥ì¥Ù¥ë¤Î¥Ñ¥±¥Ã¥È¥¤¥ó¥¿¡¼¥Õ¥§¡¼¥¹
26 .B #include <sys/socket.h>
28 .B #include <netpacket/packet.h>
30 .B #include <net/ethernet.h> /* the L2 protocols */
32 .BI "packet_socket = socket(AF_PACKET, int " socket_type ", int "protocol );
35 packet ¥½¥±¥Ã¥È¤Ï¡¢¥Ç¥Ð¥¤¥¹¥É¥é¥¤¥Ð (OSI ¥ì¥¤¥ä 2) ¥ì¥Ù¥ë¤Ç
36 À¸¤Î¥Ñ¥±¥Ã¥È (raw packet) ¤òÁ÷¼õ¿®¤¹¤ë¤¿¤á¤ËÍѤ¤¤é¤ì¤ë¡£
37 packet ¥½¥±¥Ã¥È¤ò»È¤¦¤È¡¢¥æ¡¼¥¶¡¼¶õ´Ö¤ÇʪÍýÁؤξå¤Ë
38 ¥×¥í¥È¥³¥ë¥â¥¸¥å¡¼¥ë¤ò¼ÂÁõ¤¹¤ë¤³¤È¤¬¤Ç¤¤ë¡£
45 ¤Î¤¤¤º¤ì¤«¤ò»ØÄꤹ¤ë¡£
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50 ¥ê¥ó¥¯¥ì¥Ù¥ë¥Ø¥Ã¥À¾ðÊó¤Ï
52 ¤Ç¶¦Ä̤Υե©¡¼¥Þ¥Ã¥È¤ÇÆþ¼ê¤Ç¤¤ë¡£
54 ¤Ë¤Ï IEEE 802.3 ¥×¥í¥È¥³¥ëÈÖ¹æ¤ò
55 ¥Í¥Ã¥È¥ï¡¼¥¯¥Ð¥¤¥È¥ª¡¼¥À¡¼¤Ç»ØÄꤹ¤ë¡£
56 »ØÄê¤Ç¤¤ë¥×¥í¥È¥³¥ë¤Î¥ê¥¹¥È¤Ï¡¢¥¤¥ó¥¯¥ë¡¼¥É¥Õ¥¡¥¤¥ë
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63 packet ¥½¥±¥Ã¥È¤ËÅϤµ¤ì¤ë¡£
65 packet ¥½¥±¥Ã¥È¤ò¥ª¡¼¥×¥ó¤Ç¤¤ë¤Î¤Ï¡¢
66 ¼Â¸ú¥æ¡¼¥¶¡¼ID ¤¬ 0 ¤Î¥×¥í¥»¥¹¤«¡¢
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71 ¥Ñ¥±¥Ã¥È¤Ç¤Ï¡¢¥Ñ¥±¥Ã¥È¤ò¥Ç¥Ð¥¤¥¹¥É¥é¥¤¥Ð¤È¼õ¤±ÅϤ·¤¹¤ëºÝ¡¢
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82 ¤Ï Linux 2.0 ¤Î obosolete ¤Ê
83 .B AF_INET/SOCK_PACKET
84 ¤È»÷¤Æ¤¤¤ë¤¬¡¢¸ß´¹À¤¬¤¢¤ë¤ï¤±¤Ç¤Ï¤Ê¤¤¡£
87 ¤Ï¤ä¤ä¹â°Ì¤Î¥ì¥Ù¥ë¤ÇÆ°ºî¤¹¤ë¡£ÊªÍý¥Ø¥Ã¥À¤Ï¡¢¥Ñ¥±¥Ã¥È¤¬¥æ¡¼¥¶¡¼¤Ë
88 ÅϤµ¤ì¤ëÁ°¤Ëºï½ü¤µ¤ì¤ë¡£
90 ¤Î packet ¥½¥±¥Ã¥È¤òÄ̤·¤ÆÁ÷¤é¤ì¤ë¥Ñ¥±¥Ã¥È¤Ï¡¢
92 ¤Î¹Ô¤À襢¥É¥ì¥¹¤Î¾ðÊó¤Ë´ð¤Å¤¡¢Å¬ÀÚ¤ÊʪÍýÁؤΥإåÀ¤¬Éղ䵤ì¤Æ¤«¤é¡¢
95 ¥Ç¥Õ¥©¥ë¥È¤Ç¤Ï¡¢»ØÄꤷ¤¿¥×¥í¥È¥³¥ë·¿¤Î¥Ñ¥±¥Ã¥È¤Ï¤¹¤Ù¤Æ packet
96 ¥½¥±¥Ã¥È¤ËÁ÷¤é¤ì¤ë¡£ÆÃÄê¤Î¥¤¥ó¥¿¡¼¥Õ¥§¡¼¥¹¤«¤é¤Î¥Ñ¥±¥Ã¥È¤À¤±¤ò
101 ¤ò¸Æ¤Ó¡¢ packet ¥½¥±¥Ã¥È¤ò¤½¤Î¥¤¥ó¥¿¡¼¥Õ¥§¡¼¥¹¤Ë·ë¤ÓÉÕ¤±¤ë (¥Ð¥¤¥ó¥É¤¹¤ë)¡£
102 ¥Ð¥¤¥ó¥É¤ÎºÝ¤Ë¤Ï¡¢¥¢¥É¥ì¥¹¥Õ¥£¡¼¥ë¥É¤Î¤¦¤Á
109 Áàºî¤Ï packet ¥½¥±¥Ã¥È¤Ç¤Ï¥µ¥Ý¡¼¥È¤µ¤ì¤Æ¤¤¤Ê¤¤¡£
116 ¤ËÅϤµ¤ì¤ë¤È¡¢ (¥Ð¥Ã¥Õ¥¡¥µ¥¤¥º¤è¤êÂ礤«¤Ã¤¿¤È¤·¤Æ¤â) ¾ï¤Ë¼ÂºÝ¤ËÄÌ¿®¤µ¤ì¤¿
117 ¥Ñ¥±¥Ã¥È¤ÎŤµ¤¬ÊÖ¤µ¤ì¤ë¡£
119 sockaddr_ll ¤Ï¥Ç¥Ð¥¤¥¹¤Ë°Í¸¤·¤Ê¤¤ÊªÍýÁؤΥ¢¥É¥ì¥¹¤Ç¤¢¤ë¡£
124 unsigned short sll_family; /* ¾ï¤Ë AF_PACKET */
125 unsigned short sll_protocol; /* ʪÍýÁؤΥץí¥È¥³¥ë */
126 int sll_ifindex; /* ¥¤¥ó¥¿¡¼¥Õ¥§¡¼¥¹ÈÖ¹æ */
127 unsigned short sll_hatype; /* ¥Ø¥Ã¥À¼ïÊÌ */
128 unsigned char sll_pkttype; /* ¥Ñ¥±¥Ã¥È¼ïÊÌ */
129 unsigned char sll_halen; /* ¥¢¥É¥ì¥¹¤ÎŤµ */
130 unsigned char sll_addr[8]; /* ʪÍýÁؤΥ¢¥É¥ì¥¹ */
136 ¤Ïɸ½àŪ¤Ê¥¤¡¼¥µ¥Í¥Ã¥È¥×¥í¥È¥³¥ë¤Î¥¿¥¤¥×¤Ç¡¢
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139 .I <linux/if_ether.h>
141 ¤³¤ì¤¬¤³¤Î¥½¥±¥Ã¥È¤Î¥×¥í¥È¥³¥ë¤Î¥Ç¥Õ¥©¥ë¥È¤È¤Ê¤ë¡£
144 ¤Ï¤½¤Î¥¤¥ó¥¿¡¼¥Õ¥§¡¼¥¹¤Î interface index ¤Ç¤¢¤ë
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150 ¤Ï¡¢¥¤¥ó¥¯¥ë¡¼¥É¥Õ¥¡¥¤¥ë
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166 (¥í¡¼¥«¥ë¥Û¥¹¥È¤«¤éȯ¿®¤µ¤ì¡¢
167 packet ¥½¥±¥Ã¥È¤Ë¥ë¡¼¥×¥Ð¥Ã¥¯¤·¤Æ¤¤¿¥Ñ¥±¥Ã¥È)¡£
168 ¤³¤ì¤é¤Î¼ïÊ̤¬°ÕÌ£¤ò»ý¤Ä¤Î¤Ï¼õ¿®»þ¤Î¤ß¤Ç¤¢¤ë¡£
173 ¤Ï¡¢ÊªÍýÁؤΠ(¤Ä¤Þ¤ê IEEE 802.3 ¤Î) ¥¢¥É¥ì¥¹¤È¤½¤ÎŤµ¤Ç¤¢¤ë¡£
174 ¸·Ì©¤Ê²ò¼á¤Ï¥Ç¥Ð¥¤¥¹¤Ë°Í¸¤¹¤ë¡£
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192 .SS ¥½¥±¥Ã¥È¥ª¥×¥·¥ç¥ó
193 packet ¥½¥±¥Ã¥È¤Ï¡¢ÊªÍýÁؤΥޥë¥Á¥¥ã¥¹¥È¤ä
194 ̵º¹Ê̥⡼¥É (promiscuous mode) ¤òÀßÄꤷ¤Æ»È¤¦¤³¤È¤¬¤Ç¤¤ë¡£
197 ¤È°Ê²¼¤Î¥ª¥×¥·¥ç¥ó¤Î¤¤¤º¤ì¤«¤ò»ØÄꤷ¤Æ
200 ¥Ð¥¤¥ó¥É¤òÄɲ乤ë¾ì¹ç¤Ï
201 .B PACKET_ADD_MEMBERSHIP
202 ¤Ç¤¢¤ê¡¢¼è¤êµî¤ë¾ì¹ç¤Ï
203 .B PACKET_DROP_MEMBERSHIP
204 ¤Ç¤¢¤ë¡£¤³¤ì¤é¤Ï¤¤¤º¤ì¤â
206 ¹½Â¤ÂΤò°ú¤¿ô¤Ë¼è¤ë¡£
211 int mr_ifindex; /* ¥¤¥ó¥¿¡¼¥Õ¥§¡¼¥¹ÈÖ¹æ */
212 unsigned short mr_type; /* Æ°ºî */
213 unsigned short mr_alen; /* ¥¢¥É¥ì¥¹¤ÎŤµ */
214 unsigned char mr_address[8]; /* ʪÍýÁؤΥ¢¥É¥ì¥¹ */
220 ¤Ï¡¢¥¹¥Æ¡¼¥¿¥¹¤òÊѹ¹¤·¤¿¤¤¥¤¥ó¥¿¡¼¥Õ¥§¡¼¥¹¤Î
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226 (¤·¤Ð¤·¤Ð "̵º¹Ê̥⡼¥É (promiscuous mode)" ¤È¸Æ¤Ð¤ì¤ë)¡£
227 .B PACKET_MR_MULTICAST
232 ¤Ç»ØÄꤵ¤ì¤ëʪÍýÁؤΥޥë¥Á¥¥ã¥¹¥È¥Ö¥ë¡¼¥×¤Ë¥Ð¥¤¥ó¥É¤¹¤ë¡£
233 .B PACKET_MR_ALLMULTI
234 ¤Ï socket ¤ò up ¤Ë¤·¤Æ¡¢¤½¤Î¥¤¥ó¥¿¡¼¥Õ¥§¡¼¥¹¤ËÅþ㤷¤¿¤¹¤Ù¤Æ¤Î
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237 ÀΤ«¤é¤¢¤ë ioctl ¤À¤±¤Ç¤Ê¤¯¡¢
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248 .\" FIXME Document SIOCGSTAMPNS
254 ¤ÇÄêµÁ¤µ¤ì¤Æ¤¤¤ëɸ½à¤Î ioctl ¤Ï¤¤¤º¤ì¤â
255 packet ¥½¥±¥Ã¥È¤Ë»ØÄê²Äǽ¤Ç¤¢¤ë¡£
257 packet ¥½¥±¥Ã¥È¤Ï¡¢¥Ñ¥±¥Ã¥È¤ò¥Ç¥Ð¥¤¥¹¥É¥é¥¤¥Ð¤ËÅϤ¹¤È¤¤Ë
258 µ¯¤¤¿¥¨¥é¡¼¤·¤«½èÍý¤·¤Ê¤¤¡£Ãٱ䥨¥é¡¼ (pending error)
259 ¤Ë´Ø¤¹¤ë³µÇ°¤Ï»ý¤Ã¤Æ¤¤¤Ê¤¤¡£
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299 ¤Ï Linux 2.2 ¤Î¿·µ¡Ç½¤Ç¤¢¤ë¡£¤³¤ì¤è¤ê¸Å¤¤¥Ð¡¼¥¸¥ç¥ó¤Î Linux ¤Ç¤Ï
301 ¤Î¤ß¤ò¥µ¥Ý¡¼¥È¤·¤Æ¤¤¤¿¡£
304 .I <netpacket/packet.h>
305 ¤¬Â¸ºß¤¹¤ë¤Î¤Ï glibc 2.1 °Ê¹ß¤Ç¤¢¤ë¡£
306 ¤½¤ì°ÊÁ°¤Î¥·¥¹¥Æ¥à¤Ç¤Ï°Ê²¼¤Î¤è¤¦¤Ë¤¹¤ëɬÍפ¬¤¢¤ë:
310 #include <asm/types.h>
311 #include <linux/if_packet.h>
312 #include <linux/if_ether.h> /* The L2 protocols */
316 °Ü¿¢À¤ÎɬÍ×¤Ê¥×¥í¥°¥é¥à¤Ç¤Ï¡¢
320 ¤òÍѤ¤¤ë¤³¤È¤ò¤ªÁ¦¤á¤¹¤ë¡£¤¿¤À¤·¡¢¤³¤ÎÊýË¡¤Ç¤Ï
322 ¤Îµ¡Ç½¤¹¤Ù¤Æ¤òÍøÍѤ¹¤ë¤³¤È¤Ï¤Ç¤¤Ê¤¤¡£
325 packet ¥½¥±¥Ã¥È¤Ï¡¢IEEE 802.3 ¥Õ¥ì¡¼¥à¤Î IEEE 802.2 LLC ¥Ø¥Ã¥À¤Î
326 À¸À®¤ä²òÀϤò¹Ô¤ª¤¦¤È¤·¤Ê¤¤¡£
328 ¤¬Á÷¿®¥×¥í¥È¥³¥ë¤Ë»ØÄꤵ¤ì¤ë¤È¡¢¥«¡¼¥Í¥ë¤Ï 802.3 ¥Õ¥ì¡¼¥à¤ò
329 À¸À®¤·¤Æ length ¥Õ¥£¡¼¥ë¥É¤Ë½ñ¤¹þ¤à¡£
330 ´°Á´¤Ë½àµò¤·¤¿¥Ñ¥±¥Ã¥È¤òÆÀ¤ë¤¿¤á¤Ë¤Ï¥æ¡¼¥¶¡¼¤¬ LLC ¥Ø¥Ã¥À¤ò
331 Í¿¤¨¤ëɬÍפ¬¤¢¤ë¡£ÅþÃ夷¤¿ 802.3 ¥Ñ¥±¥Ã¥È¤Ç¤Ï¡¢
332 DSAP/SSAP protocol ¤Î³Æ¥Õ¥£¡¼¥ë¥É¤Ï¿½Å²½ (multiplex) ¤µ¤ì¤Æ¤¤¤Ê¤¤¡£
333 Âå¤ï¤ê¤Ë¤³¤ì¤é¤Ï LLC ¥Ø¥Ã¥À¤¬Á°ÃÖ¤µ¤ì¤¿
335 ¥×¥í¥È¥³¥ë¤È¤·¤ÆÍ¿¤¨¤é¤ì¤ë¡£¤·¤¿¤¬¤Ã¤Æ¡¢
337 ¤Ë¥Ð¥¤¥ó¥É¤¹¤ë¤³¤È¤Ï¤Ç¤¤Ê¤¤¡£¤«¤ï¤ê¤Ë
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340 Á÷¿®¤Î¥Ç¥Õ¥©¥ë¥È¤Ï¡¢¥×¥í¥È¥³¥ë¥Õ¥£¡¼¥ë¥É¤ò»ý¤Ä
341 ɸ½à¤Î Ethernet DIX encapsulation ¤Ç¤¢¤ë¡£
343 packet ¥½¥±¥Ã¥È¤ÏÆþ½ÐÎϤΠfirewall chain ¤Ë±Æ¶Á¤ò¤¦¤±¤Ê¤¤¡£
345 Linux 2.0 ¤Ç¤Ï¡¢ packet ¥½¥±¥Ã¥È¤òÆÀ¤ëÊýË¡¤Ï
346 .BI "socket(AF_INET, SOCK_PACKET, " protocol )\fR
347 ¤ò¸Æ¤Ö¤ä¤êÊý¤·¤«¤Ê¤«¤Ã¤¿¡£¤³¤ÎÊýË¡¤Ï¤Þ¤À¥µ¥Ý¡¼¥È¤µ¤ì¤Æ¤¤¤ë¤¬¡¢
348 ÍѤ¤¤Ê¤¤¤³¤È¤ò¶¯¤¯¿ä¾©¤¹¤ë¡£¸½ºß¤ÎÊýË¡¤È¤Î¼ç¤Ê°ã¤¤¤Ï¡¢
350 ¤Ç¤Ï¥¤¥ó¥¿¡¼¥Õ¥§¡¼¥¹¤Î»ØÄê¤Ë¸Å¤¤
351 .I struct sockaddr_pkt
352 ¤òÍѤ¤¤ëÅÀ¤Ç¤¢¤ë¡£¤³¤ì¤Ë¤ÏʪÍýÁؤ«¤é¤ÎÆÈΩÀ¤¬¤Ê¤¤¡£
356 struct sockaddr_pkt {
357 unsigned short spkt_family;
358 unsigned char spkt_device[14];
359 unsigned short spkt_protocol;
369 ¤ÇÄêµÁ¤µ¤ì¤Æ¤¤¤ë IEEE 802.3 ¥×¥í¥È¥³¥ë¥¿¥¤¥×¡¢
371 ¤Ï¥Ç¥Ð¥¤¥¹¤Î̾Á°¤ò NULL ½ªÃ¼¤µ¤ì¤¿Ê¸»úÎó¤ÇÍ¿¤¨¤¿¤â¤Î (Îã: eth0) ¤Ç¤¢¤ë¡£
373 ¤³¤Î¹½Â¤ÂÎ¤Ï obsolete ¤Ç¤¢¤ê¡¢
374 ¿·¤·¤¯¥³¡¼¥É¤ò½ñ¤¯»þ¤Ë¤ÏÍѤ¤¤ë¤Ù¤¤Ç¤Ê¤¤¡£
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383 #define SOL_PACKET 263
388 ¤³¤ÎÌäÂê¤Ï¿·¤·¤¤¥Ð¡¼¥¸¥ç¥ó¤Î glibc ¤Ç¤Ï½¤Àµ¤µ¤ì¤Æ¤¤¤ë¡£
389 libc5 ¤Î¥·¥¹¥Æ¥à¤Ë¤Ï¤³¤ÎÌäÂê¤Ï¤Ê¤¤¡£
391 IEEE 802.2/803.3 ¤Î LLC ¤Î°·¤¤Êý¤Ï¡¢¥Ð¥°¤È¹Í¤¨¤Æ¤âÎɤ¤¤À¤í¤¦¡£
393 ¥½¥±¥Ã¥È¥Õ¥£¥ë¥¿¡¼¤Ë¤Ä¤¤¤ÆµºÜ¤µ¤ì¤Æ¤¤¤Ê¤¤¡£
397 ³ÈÄ¥¤ÏÈó¾ï¤Ë¤Þ¤º¤¤Âнè¤Ç¤¢¤ê¡¢À©¸æ¥á¥Ã¥»¡¼¥¸¤ÇÃÖ¤´¹¤¨¤ë¤Ù¤¤Ç¤¢¤ë¡£
400 ·Ðͳ¤Ç¥Ñ¥±¥Ã¥È¤Ë¤Ä¤¤¤Æ¤¤¤¿°¸À襢¥É¥ì¥¹¤òÆÀ¤ëÊýË¡¤¬¤Ê¤¤¡£
402 .\" ¤³¤Î man ¥Ú¡¼¥¸¤Ï Matthew Wilcox ¤Î½õÎϤΤâ¤È¤Ë Andi Kleen ¤¬½ñ¤¤¤¿¡£
403 .\" Linux 2.2 ¤Î AF_PACKET ¤Ï¡¢
404 .\" Alan Cox ¤¿¤Á¤Î¥³¡¼¥É¤ò¤â¤È¤Ë¤·¤Æ Alexey Kuznetsov ¤¬¼ÂÁõ¤·¤¿¡£
408 .BR capabilities (7),
413 ɸ½à IP Ethernet encapsulation ¤Ë´Ø¤¹¤ë¾ðÊó¤Ï RFC\ 894 ¤Ë¤¢¤ë¡£
415 IEEE 802.3 IP encapsulation ¤Ë´Ø¤¹¤ë¾ðÊó¤Ï RFC\ 1700 ¤Ë¤¢¤ë¡£
417 ʪÍýÁؤΥץí¥È¥³¥ë¤Ë´Ø¤¹¤ëµ½Ò¤Ï
418 .I <linux/if_ether.h>
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