[388] | 1 | /*
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| 2 | * TINET (TCP/IP Protocol Stack)
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| 3 | *
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| 4 | * Copyright (C) 2001-2017 by Dep. of Computer Science and Engineering
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| 5 | * Tomakomai National College of Technology, JAPAN
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| 6 | *
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| 7 | * ä¸è¨èä½æ¨©è
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| 8 | ã¯ï¼ä»¥ä¸ã® (1)ï½(4) ã®æ¡ä»¶ãï¼Free Software Foundation
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| 9 | * ã«ãã£ã¦å
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| 10 | ¬è¡¨ããã¦ãã GNU General Public License ã® Version 2 ã«è¨
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| 11 | * è¿°ããã¦ããæ¡ä»¶ãæºããå ´åã«éãï¼æ¬ã½ããã¦ã§ã¢ï¼æ¬ã½ããã¦ã§ã¢
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| 12 | * ãæ¹å¤ãããã®ãå«ãï¼ä»¥ä¸åãï¼ã使ç¨ã»è¤è£½ã»æ¹å¤ã»åé
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| 13 | å¸ï¼ä»¥ä¸ï¼
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| 14 | * å©ç¨ã¨å¼ã¶ï¼ãããã¨ãç¡åã§è¨±è«¾ããï¼
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| 15 | * (1) æ¬ã½ããã¦ã§ã¢ãã½ã¼ã¹ã³ã¼ãã®å½¢ã§å©ç¨ããå ´åã«ã¯ï¼ä¸è¨ã®èä½
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| 16 | * 権表示ï¼ãã®å©ç¨æ¡ä»¶ããã³ä¸è¨ã®ç¡ä¿è¨¼è¦å®ãï¼ãã®ã¾ã¾ã®å½¢ã§ã½ã¼
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| 17 | * ã¹ã³ã¼ãä¸ã«å«ã¾ãã¦ãããã¨ï¼
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| 18 | * (2) æ¬ã½ããã¦ã§ã¢ãï¼ã©ã¤ãã©ãªå½¢å¼ãªã©ï¼ä»ã®ã½ããã¦ã§ã¢éçºã«ä½¿
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| 19 | * ç¨ã§ããå½¢ã§åé
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| 20 | å¸ããå ´åã«ã¯ï¼åé
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| 21 | å¸ã«ä¼´ãããã¥ã¡ã³ãï¼å©ç¨
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| 22 | * è
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| 23 | ããã¥ã¢ã«ãªã©ï¼ã«ï¼ä¸è¨ã®èä½æ¨©è¡¨ç¤ºï¼ãã®å©ç¨æ¡ä»¶ããã³ä¸è¨
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| 24 | * ã®ç¡ä¿è¨¼è¦å®ãæ²è¼ãããã¨ï¼
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| 25 | * (3) æ¬ã½ããã¦ã§ã¢ãï¼æ©å¨ã«çµã¿è¾¼ããªã©ï¼ä»ã®ã½ããã¦ã§ã¢éçºã«ä½¿
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| 26 | * ç¨ã§ããªãå½¢ã§åé
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| 27 | å¸ããå ´åã«ã¯ï¼æ¬¡ã®æ¡ä»¶ãæºãããã¨ï¼
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| 28 | * (a) åé
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| 29 | å¸ã«ä¼´ãããã¥ã¡ã³ãï¼å©ç¨è
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| 30 | ããã¥ã¢ã«ãªã©ï¼ã«ï¼ä¸è¨ã®è
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| 31 | * ä½æ¨©è¡¨ç¤ºï¼ãã®å©ç¨æ¡ä»¶ããã³ä¸è¨ã®ç¡ä¿è¨¼è¦å®ãæ²è¼ãããã¨ï¼
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| 32 | * (4) æ¬ã½ããã¦ã§ã¢ã®å©ç¨ã«ããç´æ¥çã¾ãã¯éæ¥çã«çãããããªãæ
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| 33 | * 害ãããï¼ä¸è¨èä½æ¨©è
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| 34 | ããã³TOPPERSããã¸ã§ã¯ããå
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| 35 | 責ãããã¨ï¼
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| 36 | *
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| 37 | * æ¬ã½ããã¦ã§ã¢ã¯ï¼ç¡ä¿è¨¼ã§æä¾ããã¦ãããã®ã§ããï¼ä¸è¨èä½æ¨©è
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| 38 | ã
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| 39 | * ãã³TOPPERSããã¸ã§ã¯ãã¯ï¼æ¬ã½ããã¦ã§ã¢ã«é¢ãã¦ï¼ãã®é©ç¨å¯è½æ§ã
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| 40 | * å«ãã¦ï¼ãããªãä¿è¨¼ãè¡ããªãï¼ã¾ãï¼æ¬ã½ããã¦ã§ã¢ã®å©ç¨ã«ããç´
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| 41 | * æ¥çã¾ãã¯éæ¥çã«çãããããªãæ害ã«é¢ãã¦ãï¼ãã®è²¬ä»»ãè² ããªãï¼
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| 42 | *
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| 43 | * @(#) $Id: udp_discard_cli.c 388 2019-05-22 11:25:18Z coas-nagasima $
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| 44 | */
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| 45 |
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| 46 | /*
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| 47 | * UDP DISCARD ã¯ã©ã¤ã¢ã³ã
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| 48 | */
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| 49 |
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| 50 | #include <stdlib.h>
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| 51 | #include <string.h>
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| 52 |
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| 53 | #ifdef TARGET_KERNEL_ASP
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| 54 |
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| 55 | #include <kernel.h>
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| 56 | #include <sil.h>
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| 57 | #include <t_syslog.h>
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| 58 | #include "kernel_cfg.h"
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| 59 |
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| 60 | #endif /* of #ifdef TARGET_KERNEL_ASP */
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| 61 |
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| 62 | #ifdef TARGET_KERNEL_JSP
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| 63 |
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| 64 | #include <t_services.h>
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| 65 | #include "kernel_id.h"
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| 66 | #include "tinet_id.h"
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| 67 |
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| 68 | #endif /* of #ifdef TARGET_KERNEL_JSP */
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| 69 |
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| 70 | #include <netinet/in.h>
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| 71 | #include <netinet/in_itron.h>
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| 72 | #include <netinet/ip.h>
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| 73 | #include <netinet/udp.h>
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| 74 |
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| 75 | #include <netapp/netapp.h>
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| 76 | #include <netapp/netapp_var.h>
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| 77 | #include <netapp/udp_discard_cli.h>
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| 78 |
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| 79 | #ifdef USE_UDP_DISCARD_CLI
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| 80 |
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| 81 | /* discard ãµã¼ãã®ãã¼ãçªå· */
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| 82 |
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| 83 | #define DISCARD_SRV_PORTNO UINT_C(9)
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| 84 |
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| 85 | /*
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| 86 | * å¤æ°
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| 87 | */
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| 88 |
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| 89 | #define PAT_BEGIN ' '
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| 90 | #define PAT_END '~'
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| 91 |
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| 92 | #if defined(SUPPORT_INET6)
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| 93 | #define API_PROTO '6'
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| 94 | #else
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| 95 | #define API_PROTO '4'
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| 96 | #endif
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| 97 |
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| 98 | /*
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| 99 | * å
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| 100 | ¨åå¤æ°
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| 101 | */
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| 102 |
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| 103 | bool_t udp_discard_cli_valid;
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| 104 |
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| 105 | /*
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| 106 | * send_udp_discard -- DISCARD/UDP ãµã¼ãã«ã¡ãã»ã¼ã¸ãéä¿¡ããã
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| 107 | */
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| 108 |
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| 109 | static ER
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| 110 | send_udp_discard (ID cepid, T_IN_ADDR *ipaddr, uint16_t portno)
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| 111 | {
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| 112 | #if defined(SUPPORT_INET6)
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| 113 | static char smsg[IPV6_MMTU - (IP6_HDR_SIZE + UDP_HDR_SIZE)];
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| 114 | #else
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| 115 | static char smsg[IP4_MSS - (IP4_HDR_SIZE + UDP_HDR_SIZE)];
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| 116 | #endif
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| 117 |
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| 118 | T_IPEP dst;
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| 119 | ER_UINT len;
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| 120 | SYSTIM time;
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| 121 | char *p;
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| 122 | uint32_t total;
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| 123 | uint16_t pat, slen, scount;
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| 124 |
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| 125 | dst.ipaddr = *ipaddr;
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| 126 | dst.portno = portno;
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| 127 |
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| 128 | p = smsg;
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| 129 | for (slen = sizeof(smsg); slen > 0; )
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| 130 | for (pat = PAT_BEGIN; slen > 0 && pat <= PAT_END; pat ++, slen --)
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| 131 | *p ++ = pat;
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| 132 |
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| 133 | get_tim(&time);
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| 134 | syslog(LOG_NOTICE, "[UDC%c:%02u SND] send: %7lu, to: %s.%d",
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| 135 | API_PROTO, cepid, time / SYSTIM_HZ, IP2STR(NULL, &dst.ipaddr), dst.portno);
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| 136 |
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| 137 | scount = total = 0;
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| 138 | udp_discard_cli_valid = true;
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| 139 | for (slen = sizeof(smsg); udp_discard_cli_valid && slen > 0; slen --) {
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| 140 | scount ++;
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| 141 | if ((len = UDP_SND_DAT(cepid, &dst, smsg, slen, TMO_FEVR)) < 0) {
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| 142 | syslog(LOG_NOTICE, "[UDC%c:%02u SND] error: %s", API_PROTO, cepid, itron_strerror(len));
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| 143 | return len;
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| 144 | }
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| 145 | else
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| 146 | syslog(LOG_NOTICE, "[UDC%c:%02u SND] send: %7lu, %4u", API_PROTO, cepid, scount, slen);
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| 147 | total += len;
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| 148 | dly_tsk(10 * SYSTIM_HZ + netapp_rand() % (10 * SYSTIM_HZ));
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| 149 | }
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| 150 |
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| 151 | get_tim(&time);
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| 152 | syslog(LOG_NOTICE, "[UDC%c:%02u SND] finsh: %7lu, snd: %4u, len: %ld",
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| 153 | API_PROTO, cepid, time / SYSTIM_HZ, scount, total);
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| 154 | return E_OK;
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| 155 | }
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| 156 |
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| 157 | /*
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| 158 | * UDP DISCARD ã¯ã©ã¤ã¢ã³ãéä¿¡ã¿ã¹ã¯
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| 159 | */
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| 160 |
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| 161 | void
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| 162 | udp_discard_cli_task (intptr_t exinf)
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| 163 | {
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| 164 | T_IN_ADDR addr;
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| 165 | ID tskid, cepid;
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| 166 | ER error;
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| 167 | char *line;
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| 168 | int_t no;
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| 169 | uint16_t portno;
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| 170 | char apip;
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| 171 |
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| 172 | #ifdef USE_UDP_EXTENTIONS
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| 173 |
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| 174 | #if defined(SUPPORT_INET6)
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| 175 | T_UDP6_CCEP ccep;
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| 176 | #else
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| 177 | T_UDP_CCEP ccep;
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| 178 | #endif
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| 179 |
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| 180 | #endif /* of #ifdef USE_UDP_EXTENTIONS */
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| 181 |
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| 182 | #if defined(SUPPORT_INET6)
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| 183 | apip = API_PROTO_IPV6;
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| 184 | #else
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| 185 | apip = API_PROTO_IPV4;
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| 186 | #endif
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| 187 |
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| 188 | get_tid(&tskid);
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| 189 | syslog(LOG_NOTICE, "[UDP DISCARD CLI:%d,%d] started.", tskid, (ID)exinf);
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| 190 | while (true) {
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| 191 | if (rcv_dtq(DTQ_UDP_DISCARD_CLI, (intptr_t*)&line) == E_OK) {
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| 192 | line = skip_blanks(GET_IPADDR(&addr, skip_blanks(line))); /* IP Address */
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| 193 |
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| 194 | if ((line = lookup_ipaddr(&addr, line, apip)) == NULL) {
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| 195 | syslog(LOG_NOTICE, "[UDC%c:%02u TSK] unknown host.", (ID)exinf);
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| 196 | continue;
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| 197 | }
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| 198 |
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| 199 | if ('0' <= *line && *line <= '9') { /* Port No */
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| 200 | line = get_int(&no, line);
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| 201 | portno = (uint16_t)no;
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| 202 | }
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| 203 | else {
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| 204 | line ++;
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| 205 | portno = DISCARD_SRV_PORTNO;
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| 206 | }
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| 207 |
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| 208 | #ifdef USE_UDP_EXTENTIONS
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| 209 |
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| 210 | ccep.cepatr = UINT_C(0);
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| 211 | ccep.callback = NULL;
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| 212 | ccep.myaddr.portno = UDP_PORTANY;
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| 213 |
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| 214 | #if defined(SUPPORT_INET6)
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| 215 |
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| 216 | memcpy(&ccep.myaddr.ipaddr, &ipv6_addrany, sizeof(T_IN6_ADDR));
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| 217 |
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| 218 | #else /* #if defined(SUPPORT_INET6) */
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| 219 |
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| 220 | #if defined(SUPPORT_INET4)
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| 221 | ccep.myaddr.ipaddr = IPV4_ADDRANY;
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| 222 | #endif
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| 223 |
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| 224 | #endif /* #if defined(SUPPORT_INET6) */
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| 225 |
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| 226 | if ((error = ALLOC_UDP_CEP(&cepid, tskid, &ccep)) != E_OK) {
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| 227 | syslog(LOG_NOTICE, "[UDC%c:%02u TSK] CEP create error: %s", API_PROTO, cepid, itron_strerror(error));
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| 228 | continue;
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| 229 | }
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| 230 |
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| 231 | #else /* of #ifdef USE_UDP_EXTENTIONS */
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| 232 |
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| 233 | cepid = (ID)exinf;
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| 234 |
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| 235 | #endif /* of #ifdef USE_UDP_EXTENTIONS */
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| 236 |
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| 237 | if ((error = send_udp_discard(cepid, &addr, portno)) != E_OK)
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| 238 | syslog(LOG_NOTICE, "[UDC%c:%02u TSK] error: %s", API_PROTO, cepid, itron_strerror(error));
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| 239 |
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| 240 | #ifdef USE_UDP_EXTENTIONS
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| 241 |
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| 242 | if ((error = FREE_UDP_CEP(cepid, !(error == E_NOEXS || error == E_DLT))) != E_OK)
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| 243 | syslog(LOG_NOTICE, "[UDC%c:%02u TSK] CEP delete error: %s", API_PROTO, cepid, itron_strerror(error));
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| 244 |
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| 245 | #endif /* of #ifdef USE_UDP_EXTENTIONS */
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| 246 |
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| 247 | }
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| 248 | }
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| 249 | }
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| 250 |
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| 251 | #endif /* of #ifdef USE_UDP_DISCARD_CLI */
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