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decoding=\"async\" src=\"http:\/\/www.ccwifi.cc\/blogs\/wp-content\/uploads\/2024\/04\/1711991576531_6.jpg\" alt=\"\u63e1\u624b\u5305\u4f7f\u7528\u65b9\u6cd5\"><\/p>\n<p>\u5f53\u5185\u6838\u6536\u5230\u6570\u636e\u540e\uff0c\u4f1a\u4ece\u7269\u7406\u5c42\u3001\u6570\u636e\u94fe\u8def\u5c42\u3001\u7f51\u7edc\u5c42\u3001\u4f20\u8f93\u5c42\u3001\u5e94\u7528\u5c42\u9010\u5c42\u4f20\u9012\u3002\u5230\u8fbe\u4f20\u8f93\u5c42\u65f6\uff0c\u6839\u636e\u6570\u636e\u5305\u7684\u534f\u8bae\u662fTCP\u8fd8\u662fUDP\uff0c\u4f1a\u8d70\u4e0d\u540c\u7684\u51fd\u6570\u65b9\u6cd5\u3002\u7b80\u5355\u6765\u8bf4\uff0cTCP\u6570\u636e\u5305\u90fd\u4f1a\u7ecf\u8fc7tcp<em>v4<\/em>rcv()\u65b9\u6cd5\u3002\u8be5\u65b9\u6cd5\u4f1a\u4ece\u5168\u5c40\u54c8\u5e0c\u8868\u4e2d\u83b7\u53d6socket\u3002\u5982\u679c\u670d\u52a1\u7aef\u6267\u884c\u8fc7listen\uff0c\u5c31\u80fd\u4ece\u5168\u5c40\u54c8\u5e0c\u8868\u4e2d\u83b7\u53d6\u5230socket\u3002\u4f46\u5982\u679c\u670d\u52a1\u7aef\u6ca1\u6709\u6267\u884c\u8fc7listen\uff0c\u5168\u5c40\u54c8\u5e0c\u8868\u4e2d\u4e5f\u5c31\u6ca1\u6709\u5bf9\u5e94\u7684socket\uff0c\u7ed3\u679c\u81ea\u7136\u662f\u83b7\u53d6\u4e0d\u5230\u3002\u5728\u8fd9\u79cd\u60c5\u51b5\u4e0b\uff0c\u6b63\u5e38\u60c5\u51b5\u4e0b\u670d\u52a1\u7aef\u4f1a\u5411\u5ba2\u6237\u7aef\u53d1\u9001RST\u3002\u4f46\u7aef\u53e3\u672a\u76d1\u542c\u5e76\u4e0d\u4e00\u5b9a\u4f1a\u5bfc\u81f4\u53d1\u51faRST\u3002\u5982\u4e0a\u6240\u8ff0\uff0c\u53d1\u51faRST\u7684\u524d\u63d0\u662f\u5728\u6570\u636e\u5305\u6ca1\u6709\u95ee\u9898\u7684\u60c5\u51b5\u4e0b\uff0c\u6bd4\u5982\u6821\u9a8c\u548c\u6b63\u786e\uff0c\u624d\u4f1a\u5411\u5bf9\u7aef\u53d1\u9001RST\u5305\u3002\u56e0\u6b64\uff0c\u5728\u6570\u636e\u5305\u5f02\u5e38\u7684\u60c5\u51b5\u4e0b\uff0c\u9ed8\u9ed8\u4e22\u5f03\u800c\u4e0d\u53d1\u9001RST\u662f\u975e\u5e38\u5408\u7406\u7684\u505a\u6cd5\u3002<\/p>\n<p>\u4e3a\u4ec0\u4e48\u5728\u6570\u636e\u5305\u5f02\u5e38\u7684\u60c5\u51b5\u4e0b\u4e0d\u53d1\u9001RST\uff1f\u4e00\u4e2a\u6570\u636e\u5305\u5982\u679c\u8fde\u6821\u9a8c\u548c\u90fd\u65e0\u6cd5\u901a\u8fc7\uff0c\u90a3\u4e48\u5f88\u53ef\u80fd\u51fa\u73b0\u4e86\u95ee\u9898\u3002\u53ef\u80fd\u662f\u5728\u4f20\u8f93\u8fc7\u7a0b\u4e2d\u88ab\u7be1\u6539\uff0c\u4e5f\u53ef\u80fd\u53ea\u662f\u4e00\u4e2a\u80e1\u4e71\u4f2a\u9020\u7684\u6570\u636e\u5305\u3002\u5728\u4e94\u5c42\u7f51\u7edc\u4e2d\uff0c\u65e0\u8bba\u662f\u54ea\u4e00\u5c42\uff0c\u53ea\u8981\u9047\u5230\u8fd9\u79cd\u6570\u636e\u5305\uff0c\u63a8\u8350\u7684\u505a\u6cd5\u90fd\u662f\u9ed8\u9ed8\u4e22\u5f03\uff0c\u800c\u4e0d\u662f\u56de\u590d\u4e00\u4e2a\u6d88\u606f\u544a\u8bc9\u5bf9\u65b9\u6570\u636e\u6709\u95ee\u9898\u3002\u5982\u679c\u5bf9\u65b9\u4f7f\u7528\u7684\u662fTCP\uff0c\u5373\u53ef\u9760\u4f20\u8f93\u534f\u8bae\uff0c\u53d1\u73b0\u5f88\u4e45\u6ca1\u6709\u6536\u5230ACK\u54cd\u5e94\uff0c\u81ea\u5df1\u4f1a\u8fdb\u884c\u91cd\u4f20\u3002\u5982\u679c\u5bf9\u65b9\u4f7f\u7528\u7684\u662fUDP\uff0c\u8bf4\u660e\u53d1\u9001\u7aef\u5df2\u7ecf\u63a5\u53d7\u4e86&#8221;\u4e0d\u53ef\u9760\u4e22\u5305&#8221;\u7684\u4e8b\u5b9e\uff0c\u90a3\u5c31\u4e22\u4e86\u5c31\u4e22\u4e86\u3002\u56e0\u6b64\uff0c\u5728\u6570\u636e\u5305\u5f02\u5e38\u7684\u60c5\u51b5\u4e0b\uff0c\u9ed8\u9ed8\u4e22\u5f03\u800c\u4e0d\u53d1\u9001RST\u662f\u975e\u5e38\u5408\u7406\u7684\u505a\u6cd5\u3002<\/p>\n<p>\u8fd8\u662f\u65e0\u6cd5\u7406\u89e3\uff1f\u90a3\u6211\u518d\u4e3e\u4e2a\u4f8b\u5b50\u3002\u6b63\u5e38\u4eba\u5bf9\u4f60\u8fdb\u884c\u62a8\u51fb\u65f6\uff0c\u4ed6\u8bf4\u8bdd\u6761\u7406\u6e05\u6670\uff0c\u4e3b\u8c13\u5bbe\u5206\u660e\u3002\u6b64\u65f6\uff0c\u4f60\u56de\u51fb\u4ed6\uff0c\u4f60\u662f\u4e00\u4e2a\u5145\u6ee1\u70ed\u60c5\u3001\u6b63\u76f4\u3001\u5bcc\u6709\u5224\u65ad\u529b\u7684\u597d\u4eba\u3002\u800c\u6b64\u65f6\u4e00\u4e2a\u61a8\u61a8\u4e5f\u60f3\u5bf9\u4f60\u8fdb\u884c\u62a8\u51fb\uff0c\u4f46\u4ed6\u7684\u601d\u7ef4\u6df7\u4e71\uff0c\u8fde\u8bdd\u90fd\u8bf4\u4e0d\u6e05\u695a\uff0c\u4e00\u76f4\u963f\u5df4\u963f\u5df4\u7684\u3002\u4f60\u867d\u7136\u542c\u4e0d\u61c2\uff0c\u4f46\u5374\u53d7\u5230\u4e86\u9707\u64bc\u3002\u5728\u8fd9\u79cd\u60c5\u51b5\u4e0b\uff0c\u4f60\u4f1a\u600e\u4e48\u505a\uff1f\u4e00\u822c\u6765\u8bf4\uff0c\u6700\u597d\u7684\u9009\u62e9\u662f\u9009\u62e9B\uff0c\u56e0\u4e3a\u5982\u679c\u4f60\u56de\u51fb\u4ed6\uff0c\u4ed6\u53cd\u800c\u4f1a\u66f4\u6709\u52a8\u529b\u3002\u5e0c\u671b\u901a\u8fc7\u8fd9\u4e2a\u4f8b\u5b50\uff0c\u4f60\u80fd\u66f4\u597d\u5730\u7406\u89e3\u3002<\/p>\n<p>\u7a0b\u5e8f\u542f\u52a8\u4e86\u4f46\u662f\u5d29\u6e83\u4e86\u3002\u5728\u7aef\u53e3\u4e0d\u53ef\u7528\u7684\u573a\u666f\u4e2d\uff0c\u9664\u4e86\u7aef\u53e3\u672a\u76d1\u542c\u5916\uff0c\u8fd8\u6709\u53ef\u80fd\u662f\u4e4b\u524d\u8fdb\u884c\u4e86\u76d1\u542c\uff0c\u4f46\u670d\u52a1\u7aef\u5e94\u7528\u7a0b\u5e8f\u7a81\u7136\u5d29\u6e83\u3002\u6b64\u65f6\uff0c\u5ba2\u6237\u7aef\u4ecd\u7136\u50cf\u5f80\u5e38\u4e00\u6837\u6b63\u5e38\u53d1\u9001\u6d88\u606f\uff0c\u4f46\u670d\u52a1\u7aef\u7684\u5185\u6838\u534f\u8bae\u6808\u4f1a\u56de\u590d\u4e00\u4e2aRST\u3002\u5728\u5f00\u53d1\u8fc7\u7a0b\u4e2d\uff0c\u8fd9\u79cd\u60c5\u51b5\u662f\u6700\u5e38\u89c1\u7684\u3002\u6bd4\u5982\uff0c\u5728\u670d\u52a1\u7aef\u5e94\u7528\u7a0b\u5e8f\u4e2d\uff0c\u51fa\u73b0\u4e86\u7a7a\u6307\u9488\u6216\u6570\u7ec4\u8d8a\u754c\u7b49\u95ee\u9898\uff0c\u7a0b\u5e8f\u7acb\u5373\u5d29\u6e83\u3002<\/p>\n<p>\u8fd9\u79cd\u60c5\u51b5\u4e0e\u7aef\u53e3\u672a\u76d1\u542c\u672c\u8d28\u4e0a\u662f\u76f8\u4f3c\u7684\u3002\u5728\u670d\u52a1\u7aef\u5e94\u7528\u7a0b\u5e8f\u5d29\u6e83\u540e\uff0c\u4e4b\u524d\u76d1\u542c\u7684\u7aef\u53e3\u8d44\u6e90\u88ab\u91ca\u653e\uff0c\u4ece\u6548\u679c\u4e0a\u770b\uff0c\u7c7b\u4f3c\u4e8e\u5904\u4e8eCLOSED\u72b6\u6001\u3002\u6b64\u65f6\uff0c\u670d\u52a1\u7aef\u6536\u5230\u5ba2\u6237\u7aef\u53d1\u9001\u7684\u6d88\u606f\uff0c\u5185\u6838\u534f\u8bae\u6808\u4f1a\u6839\u636eIP\u548c\u7aef\u53e3\u4ece\u5168\u5c40\u54c8\u5e0c\u8868\u4e2d\u67e5\u627esocket\uff0c\u7ed3\u679c\u81ea\u7136\u662f\u627e\u4e0d\u5230\u5bf9\u5e94\u7684socket\u6570\u636e\uff0c\u4e8e\u662f\u6267\u884c\u4e0e&#8221;\u7aef\u53e3\u672a\u76d1\u542c&#8221;\u65f6\u76f8\u540c\u7684\u903b\u8f91\uff0c\u56de\u590d\u4e00\u4e2aRST\u3002\u5ba2\u6237\u7aef\u5728\u6536\u5230RST\u540e\u4e5f\u4f1a\u91ca\u653esocket\u8d44\u6e90\uff0c\u4ece\u6548\u679c\u4e0a\u770b\uff0c\u8fde\u63a5\u65ad\u5f00\u4e86\u3002<\/p>\n<p><img decoding=\"async\" src=\"http:\/\/www.ccwifi.cc\/blogs\/wp-content\/uploads\/2024\/04\/1711991576531_5.jpg\" alt=\"\u63e1\u624b\u5305\u4f7f\u7528\u65b9\u6cd5\"><\/p>\n<pre><code class=\"language-text\">\/\/ net\/ipv4\/tcp_ipv4.c  \n\/\/ \u4ee3\u7801\u7ecf\u8fc7\u5220\u51cf\nint tcp_v4_rcv(struct sk_buff *skb)\n{\n    \/\/ \u6839\u636eip\u3001\u7aef\u53e3\u7b49\u4fe1\u606f \u83b7\u53d6sock\u3002\n    sk = __inet_lookup_skb(&amp;tcp_hashinfo, skb, th-&gt;source, th-&gt;dest);\n    if (!sk)\n        goto no_tcp_socket;\nno_tcp_socket:\n    \/\/ \u68c0\u67e5\u6570\u636e\u5305\u6709\u6ca1\u6709\u51fa\u9519\n    if (skb-&gt;len doff &lt;&lt; 2) || tcp_checksum_complete(skb)) {\n        \/\/ \u9519\u8bef\u8bb0\u5f55\n    } else {\n        \/\/ \u53d1\u9001RST\n        tcp_v4_send_reset(NULL, skb);\n    }\n}<\/code><\/pre>\n<p>RST\u548c502\u7684\u5173\u7cfb\u3002\u5728\u4e0a\u8ff0\u60c5\u51b5\u4e0b\uff0c\u670d\u52a1\u7aef\u7a0b\u5e8f\u5d29\u6e83\u540e\uff0c\u5982\u679c\u5ba2\u6237\u7aef\u7ee7\u7eed\u53d1\u9001\u6570\u636e\uff0c\u5c06\u4f1a\u6536\u5230RST\u3002\u4f46\u5982\u679c\u5728\u5ba2\u6237\u7aef\u548c\u670d\u52a1\u7aef\u4e4b\u95f4\u52a0\u5165\u4e86\u4e00\u4e2anginx\uff0c\u5c31\u50cf\u4e0b\u56fe\u6240\u793a\u3002<\/p>\n<p><img decoding=\"async\" src=\"http:\/\/www.ccwifi.cc\/blogs\/wp-content\/uploads\/2024\/04\/1711991576531_11.gif\" alt=\"\u63e1\u624b\u5305\u4f7f\u7528\u65b9\u6cd5\"><\/p>\n<p>nginx\u5c06\u5145\u5f53\u5ba2\u6237\u7aef\u548c\u670d\u52a1\u7aef\u4e4b\u95f4\u7684&#8221;\u4e2d\u95f4\u4eba&#8221;\u89d2\u8272\uff0c\u8d1f\u8d23\u8f6c\u53d1\u8bf7\u6c42\u548c\u54cd\u5e94\u7ed3\u679c\u3002\u4f46\u5f53\u670d\u52a1\u7aef\u7a0b\u5e8f\u5d29\u6e83\uff0c\u4f8b\u5982\u51fa\u73b0\u91ce\u6307\u9488\u6216OOM\u95ee\u9898\u65f6\uff0c\u8f6c\u53d1\u5230\u670d\u52a1\u5668\u7684\u8bf7\u6c42\u5fc5\u7136\u65e0\u6cd5\u5f97\u5230\u54cd\u5e94\uff0c\u540e\u7aef\u670d\u52a1\u7aef\u5c06\u8fd4\u56de\u4e00\u4e2aRST\u7ed9nginx\u3002nginx\u5728\u6536\u5230\u8fd9\u4e2aRST\u540e\u4f1a\u65ad\u5f00\u4e0e\u670d\u52a1\u7aef\u7684\u8fde\u63a5\uff0c\u5e76\u5411\u5ba2\u6237\u7aef\u8fd4\u56de\u4e00\u4e2a502\u9519\u8bef\u7801\u3002\u56e0\u6b64\uff0c\u51fa\u73b0502\u95ee\u9898\u901a\u5e38\u662f\u7531\u4e8e\u540e\u7aef\u7a0b\u5e8f\u5d29\u6e83\u5f15\u8d77\u7684\u3002\u5728\u8fd9\u79cd\u60c5\u51b5\u4e0b\uff0c\u5efa\u8bae\u68c0\u67e5\u76d1\u63a7\u662f\u5426\u53d1\u751f\u4e86OOM\uff0c\u6216\u8005\u67e5\u770b\u65e5\u5fd7\u4e2d\u662f\u5426\u6709\u7a7a\u6307\u9488\u7b49\u9519\u8bef\u4fe1\u606f\u3002<\/p>\n<p>\u4e3a\u4ec0\u4e48\u8981\u6821\u9a8c\u662f\u5426\u5728\u7a97\u53e3\u8303\u56f4\u5185\uff1f\u6b63\u5e38\u60c5\u51b5\u4e0b\uff0c\u5ba2\u6237\u7aef\u548c\u670d\u52a1\u7aef\u53ef\u4ee5\u901a\u8fc7RST\u6765\u65ad\u5f00\u8fde\u63a5\u3002\u5047\u8bbe\u4e0d\u8fdb\u884cseq\u6821\u9a8c\uff0c\u5982\u679c\u6b64\u65f6\u6709\u6076\u610f\u7684\u7b2c\u4e09\u65b9\u4ecb\u5165\uff0c\u6784\u9020\u4e86\u4e00\u4e2aRST\u5305\uff0c\u5e76\u5728TCP\u548cIP\u7b49\u62a5\u5934\u4e2d\u586b\u5199\u4e86\u5ba2\u6237\u7aef\u7684\u4fe1\u606f\uff0c\u53d1\u9001\u5230\u670d\u52a1\u7aef\uff0c\u90a3\u4e48\u670d\u52a1\u7aef\u5c06\u65ad\u5f00\u8fd9\u4e2a\u8fde\u63a5\u3002\u540c\u6837\u7684\uff0c\u4e5f\u53ef\u4ee5\u4f2a\u9020\u670d\u52a1\u7aef\u7684\u5305\u53d1\u9001\u7ed9\u5ba2\u6237\u7aef\u3002\u8fd9\u5c31\u662f\u6240\u8c13\u7684RST\u653b\u51fb\u3002\u4e3a\u4e86\u9632\u6b62\u8fd9\u79cd\u60c5\u51b5\u53d1\u751f\uff0c\u6821\u9a8cseq\u662f\u5426\u5728\u7a97\u53e3\u8303\u56f4\u5185\u975e\u5e38\u91cd\u8981\u3002<\/p>\n<p>\u5f53\u6536\u5230RST\u5305\u65f6\uff0c\u9996\u5148\u4f1a\u901a\u8fc7tcp_sequence\u68c0\u67e5seq\u662f\u5426\u5408\u6cd5\uff0c\u4e3b\u8981\u662f\u68c0\u67e5seq\u662f\u5426\u5728\u5408\u6cd5\u63a5\u6536\u7a97\u53e3\u8303\u56f4\u5185\u3002\u5982\u679c\u4e0d\u5728\u8303\u56f4\u5185\uff0cRST\u5305\u5c06\u88ab\u4e22\u5f03\u3002\u4e3a\u4ec0\u4e48\u8981\u6821\u9a8c\u662f\u5426\u5728\u7a97\u53e3\u8303\u56f4\u5185\uff1f\u8fd9\u662f\u56e0\u4e3a\u5728\u6b63\u5e38\u60c5\u51b5\u4e0b\uff0c\u5ba2\u6237\u7aef\u548c\u670d\u52a1\u7aef\u53ef\u4ee5\u901a\u8fc7RST\u6765\u65ad\u5f00\u8fde\u63a5\u3002\u4f46\u5982\u679c\u4e0d\u8fdb\u884cseq\u6821\u9a8c\uff0c\u6076\u610f\u7684\u7b2c\u4e09\u65b9\u53ef\u80fd\u4f1a\u6784\u9020\u4e00\u4e2aRST\u5305\uff0c\u5c06\u5176seq\u8bbe\u7f6e\u4e3a\u4e0d\u5408\u6cd5\u7684\u503c\uff0c\u4ece\u800c\u5bfc\u81f4\u8fde\u63a5\u88ab\u975e\u6cd5\u65ad\u5f00\u3002\u901a\u8fc7\u6821\u9a8cseq\u662f\u5426\u5728\u7a97\u53e3\u8303\u56f4\u5185\uff0c\u53ef\u4ee5\u963b\u6b62\u8bb8\u591a\u975e\u6cd5\u6d88\u606f\u7684\u4f20\u9012\u3002\u867d\u7136\u52a0\u5165\u7a97\u53e3\u6821\u9a8c\u5e76\u4e0d\u80fd\u5b8c\u5168\u9632\u6b62RST\u653b\u51fb\uff0c\u4f46\u5b83\u589e\u52a0\u4e86\u653b\u51fb\u7684\u6210\u672c\u3002<\/p>\n<p>\u6536\u5230RST\u5305\u4e00\u5b9a\u4f1a\u65ad\u5f00\u8fde\u63a5\u5417\uff1f\u7ed3\u8bba\u662f\uff0c\u5e76\u4e0d\u4e00\u5b9a\u4f1a\u65ad\u5f00\u3002\u8ba9\u6211\u4eec\u6765\u770b\u770b\u6e90\u4ee3\u7801\u3002\u6536\u5230RST\u5305\u540e\uff0c\u9996\u5148\u4f1a\u901a\u8fc7tcp_sequence\u68c0\u67e5\u8fd9\u4e2aseq\u662f\u5426\u5408\u6cd5\uff0c\u4e3b\u8981\u662f\u68c0\u67e5\u8fd9\u4e2aseq\u662f\u5426\u5728\u5408\u6cd5\u63a5\u6536\u7a97\u53e3\u8303\u56f4\u5185\u3002\u5982\u679c\u4e0d\u5728\u8303\u56f4\u5185\uff0cRST\u5305\u5c06\u88ab\u4e22\u5f03\u3002\u90a3\u4e48\uff0c\u6211\u4eec\u5982\u4f55\u6784\u9020\u5408\u6cd5\u7684seq\u5462\uff1f<\/p>\n<pre><code class=\"language-text\">struct tcp_skb_cb {\n    __u32       seq;        \/* Starting sequence number *\/\n}<\/code><\/pre>\n<p><img decoding=\"async\" src=\"http:\/\/www.ccwifi.cc\/blogs\/wp-content\/uploads\/2024\/04\/1711991576531_16.jpg\" alt=\"\u63e1\u624b\u5305\u4f7f\u7528\u65b9\u6cd5\"><!-- \u6587\u7ae0\u6765\u6e90:https:\/\/zhuanlan.zhihu.com\/p\/422383933 --><\/p>\n<pre><code class=\"language-text\">static bool tcp_validate_incoming()\n{\n    struct tcp_sock *tp = tcp_sk(sk);\n    \/* \u5224\u65adseq\u662f\u5426\u5728\u5408\u6cd5\u7a97\u53e3\u5185 *\/\n    if (!tcp_sequence(tp, TCP_SKB_CB(skb)-&gt;seq, TCP_SKB_CB(skb)-&gt;end_seq)) {\n        if (!th-&gt;rst) {\n            \/\/ \u6536\u5230\u4e00\u4e2a\u4e0d\u5728\u5408\u6cd5\u7a97\u53e3\u5185\u7684SYN\u5305\n            if (th-&gt;syn)\n                goto syn_challenge;\n        }\n    }\n    \/* \n     * RFC 5691 4.2 : \u53d1\u9001 challenge ack\n     *\/\n    if (th-&gt;syn) {\nsyn_challenge:\n        tcp_send_challenge_ack(sk);\n    }\n}<\/code><\/pre>\n<pre><code class=\"language-text\">\/\/ net\/ipv4\/tcp_input.c\nstatic bool tcp_validate_incoming()\n{\n    \/\/ \u83b7\u53d6sock\n    struct tcp_sock *tp = tcp_sk(sk);\n    \/\/ step 1\uff1a\u5148\u5224\u65adseq\u662f\u5426\u5408\u6cd5\uff08\u662f\u5426\u5728\u5408\u6cd5\u63a5\u6536\u7a97\u53e3\u8303\u56f4\u5185\uff09\n    if (!tcp_sequence(tp, TCP_SKB_CB(skb)-&gt;seq, TCP_SKB_CB(skb)-&gt;end_seq)) {\n        goto discard;\n    }\n    \/\/ step 2\uff1a\u6267\u884c\u6536\u5230 RST \u540e\u8be5\u5e72\u7684\u4e8b\u60c5\n    if (th-&gt;rst) {\n        if (TCP_SKB_CB(skb)-&gt;seq == tp-&gt;rcv_nxt)\n            tcp_reset(sk);\n        else\n            tcp_send_challenge_ack(sk);\n        goto discard;\n    }\n}<\/code><\/pre>\n<p><img decoding=\"async\" src=\"http:\/\/www.ccwifi.cc\/blogs\/wp-content\/uploads\/2024\/04\/1711991576531_15.jpg\" alt=\"\u63e1\u624b\u5305\u4f7f\u7528\u65b9\u6cd5\"><img decoding=\"async\" src=\"http:\/\/www.ccwifi.cc\/blogs\/wp-content\/uploads\/2024\/04\/1711991576531_14.jpg\" alt=\"\u63e1\u624b\u5305\u4f7f\u7528\u65b9\u6cd5\"><img decoding=\"async\" src=\"http:\/\/www.ccwifi.cc\/blogs\/wp-content\/uploads\/2024\/04\/1711991576531_12.jpg\" alt=\"\u63e1\u624b\u5305\u4f7f\u7528\u65b9\u6cd5\"><img decoding=\"async\" src=\"http:\/\/www.ccwifi.cc\/blogs\/wp-content\/uploads\/2024\/04\/1711991576531_13.jpg\" alt=\"\u63e1\u624b\u5305\u4f7f\u7528\u65b9\u6cd5\"><img decoding=\"async\" src=\"http:\/\/www.ccwifi.cc\/blogs\/wp-content\/uploads\/2024\/04\/1711991576531_8.jpg\" alt=\"\u63e1\u624b\u5305\u4f7f\u7528\u65b9\u6cd5\"><img decoding=\"async\" src=\"http:\/\/www.ccwifi.cc\/blogs\/wp-content\/uploads\/2024\/04\/1711991576531_7.jpg\" alt=\"\u63e1\u624b\u5305\u4f7f\u7528\u65b9\u6cd5\"><img decoding=\"async\" src=\"http:\/\/www.ccwifi.cc\/blogs\/wp-content\/uploads\/2024\/04\/1711991576531_10.jpg\" alt=\"\u63e1\u624b\u5305\u4f7f\u7528\u65b9\u6cd5\"><img decoding=\"async\" src=\"http:\/\/www.ccwifi.cc\/blogs\/wp-content\/uploads\/2024\/04\/1711991576531_2.gif\" alt=\"\u63e1\u624b\u5305\u4f7f\u7528\u65b9\u6cd5\"><img decoding=\"async\" src=\"http:\/\/www.ccwifi.cc\/blogs\/wp-content\/uploads\/2024\/04\/1711991576531_4.jpg\" alt=\"\u63e1\u624b\u5305\u4f7f\u7528\u65b9\u6cd5\"><img decoding=\"async\" src=\"http:\/\/www.ccwifi.cc\/blogs\/wp-content\/uploads\/2024\/04\/1711991576531_3.gif\" alt=\"\u63e1\u624b\u5305\u4f7f\u7528\u65b9\u6cd5\"><img decoding=\"async\" src=\"http:\/\/www.ccwifi.cc\/blogs\/wp-content\/uploads\/2024\/04\/1711991576531_1.jpg\" alt=\"\u63e1\u624b\u5305\u4f7f\u7528\u65b9\u6cd5\"><img decoding=\"async\" src=\"http:\/\/www.ccwifi.cc\/blogs\/wp-content\/uploads\/2024\/04\/1711991576531_0.jpg\" alt=\"\u63e1\u624b\u5305\u4f7f\u7528\u65b9\u6cd5\"><\/p>\n<div>\n<p>\u5728\u7ebfwifi\u8dd1\u5305 \u91d1\u521a\u5305\u8dd1\u5305 cap\u8dd1\u5305 hccapx ewsa\u5728\u7ebf \u5c31\u6765 <strong><a href=\"https:\/\/ccwifi.cc\" target=\"_blank\" rel=\"noopener\">\u63e1\u624b\u5305\u8dd1\u5305<\/a><\/strong><\/p>\n<p>\u5404\u4f4d\u597d \u53c8\u89c1\u9762\u4e86 \u6211\u662f\u66f9\u64cd \u4eca\u5929\u7ed9\u5927\u5bb6\u5e26\u6765\u4e00\u7bc7\u65b0\u7684\u6559\u7a0b<\/p>\n<p>\u5e0c\u671b\u5404\u4f4d\u7ec6\u5fc3\u5b66\u4e60 \u4f4e\u8c03\u7528\u7f51<\/p>\n<\/div>\n<p><img decoding=\"async\" src=\"http:\/\/www.ccwifi.cc\/blogs\/wp-content\/uploads\/2024\/04\/1711991576531_9.jpg\" alt=\"\u63e1\u624b\u5305\u4f7f\u7528\u65b9\u6cd5\"><img decoding=\"async\" src=\"http:\/\/www.ccwifi.cc\/blogs\/wp-content\/uploads\/2024\/04\/1711991576531_18.jpg\" alt=\"\u63e1\u624b\u5305\u4f7f\u7528\u65b9\u6cd5\"><img decoding=\"async\" src=\"http:\/\/www.ccwifi.cc\/blogs\/wp-content\/uploads\/2024\/04\/1711991576531_17.png\" alt=\"\u63e1\u624b\u5305\u4f7f\u7528\u65b9\u6cd5\"><\/p>\n<p>{5923<\/p>\n","protected":false},"excerpt":{"rendered":"<p>\u52a8\u56fe\u56fe\u89e3\uff01\u6536\u5230RST\uff0c\u5c31\u4e00\u5b9a\u4f1a\u65ad\u5f00TCP\u8fde\u63a5\u5417\uff1f\u6587\u7ae0\u9996\u53d1\u4e8e\u4e2a\u4eba\u516c\u4f17\u53f7\u300c\u5c0f\u767ddebug\u300d\u539f\u6587\u94fe\u63a5\uff1a\u52a8\u56fe\u56fe\u89e3\uff01\u6536\u5230RST\uff0c\u5c31\u4e00\u5b9a\u4f1a\u65ad\u5f00TCP\u8fde\u63a5\u5417\uff1f\u60f3\u5fc5\u5927\u5bb6\u5df2\u7ecf\u77e5\u9053\u6211\u7684niao\u6027\uff0c\u641e\u4e2a\u6807\u9898\uff0c\u5c31\u662f\u4e0d\u559c\u6b22\u7acb\u9a6c\u56de\u7b54\u3002\u5c31\u662f\u8981\u641e\u4e00\u5927\u5806\u539f\u7406\u6027\u7684\u4e1c\u897f<\/p>\n","protected":false},"author":1,"featured_media":4358,"comment_status":"open","ping_status":"open","sticky":false,"template":"","format":"standard","meta":{"footnotes":""},"categories":[1],"tags":[],"topic":[],"class_list":["post-4357","post","type-post","status-publish","format-standard","has-post-thumbnail","hentry","category-1"],"_links":{"self":[{"href":"https:\/\/www.ccwifi.cc\/blogs\/wp-json\/wp\/v2\/posts\/4357","targetHints":{"allow":["GET"]}}],"collection":[{"href":"https:\/\/www.ccwifi.cc\/blogs\/wp-json\/wp\/v2\/posts"}],"about":[{"href":"https:\/\/www.ccwifi.cc\/blogs\/wp-json\/wp\/v2\/types\/post"}],"author":[{"embeddable":true,"href":"https:\/\/www.ccwifi.cc\/blogs\/wp-json\/wp\/v2\/users\/1"}],"replies":[{"embeddable":true,"href":"https:\/\/www.ccwifi.cc\/blogs\/wp-json\/wp\/v2\/comments?post=4357"}],"version-history":[{"count":0,"href":"https:\/\/www.ccwifi.cc\/blogs\/wp-json\/wp\/v2\/posts\/4357\/revisions"}],"wp:featuredmedia":[{"embeddable":true,"href":"https:\/\/www.ccwifi.cc\/blogs\/wp-json\/wp\/v2\/media\/4358"}],"wp:attachment":[{"href":"https:\/\/www.ccwifi.cc\/blogs\/wp-json\/wp\/v2\/media?parent=4357"}],"wp:term":[{"taxonomy":"category","embeddable":true,"href":"https:\/\/www.ccwifi.cc\/blogs\/wp-json\/wp\/v2\/categories?post=4357"},{"taxonomy":"post_tag","embeddable":true,"href":"https:\/\/www.ccwifi.cc\/blogs\/wp-json\/wp\/v2\/tags?post=4357"},{"taxonomy":"topic","embeddable":true,"href":"https:\/\/www.ccwifi.cc\/blogs\/wp-json\/wp\/v2\/topic?post=4357"}],"curies":[{"name":"wp","href":"https:\/\/api.w.org\/{rel}","templated":true}]}}