{"id":10021256,"date":"2026-02-16T11:16:33","date_gmt":"2026-02-16T03:16:33","guid":{"rendered":"https:\/\/itmax.cn\/?p=10021256"},"modified":"2026-02-16T11:16:33","modified_gmt":"2026-02-16T03:16:33","slug":"%e9%98%b2%e7%81%ab%e5%a2%99%e5%92%8c%e5%85%a5%e4%be%b5%e6%b5%8b%e8%af%95","status":"publish","type":"post","link":"https:\/\/itmax.cn\/?p=10021256","title":{"rendered":"\u9632\u706b\u5899\u548c\u5165\u4fb5\u6d4b\u8bd5"},"content":{"rendered":"

\u5927\u5bb6\u597d\uff0c\u6211\u662f\u826f\u8bb8\u3002<\/p>\n

\u5728\u5d4c\u5165\u5f0f\u7cfb\u7edf\u5f00\u53d1\u548c\u7f51\u7edc\u5b89\u5168\u9886\u57df\uff0c\u9632\u706b\u5899\u548c\u5165\u4fb5\u6d4b\u8bd5\u662f\u4e24\u4e2a\u7ecf\u5e38\u88ab\u63d0\u53ca\u4f46\u53c8\u5bb9\u6613\u6df7\u6dc6\u7684\u6982\u5ff5\u3002<\/p>\n

\u4f5c\u4e3a\u4e00\u540d\u5d4c\u5165\u5f0f\u7a0b\u5e8f\u5458\uff0c\u6211\u5728\u5de5\u4f5c\u4e2d\u7ecf\u5e38\u9700\u8981\u5904\u7406\u8bbe\u5907\u7684\u7f51\u7edc\u5b89\u5168\u95ee\u9898\uff0c\u7279\u522b\u662f\u5728\u6c7d\u8f66\u7535\u5b50\u9886\u57df\uff0c\u8f66\u8f7d\u7cfb\u7edf\u7684\u7f51\u7edc\u5b89\u5168\u5df2\u7ecf\u6210\u4e3a\u4e0d\u53ef\u5ffd\u89c6\u7684\u91cd\u8981\u73af\u8282\u3002<\/p>\n

\u4eca\u5929\u5c31\u548c\u5927\u5bb6\u804a\u804a\u9632\u706b\u5899\u548c\u5165\u4fb5\u6d4b\u8bd5\u8fd9\u4e24\u4e2a\u8bdd\u9898\uff0c\u5e2e\u52a9\u5927\u5bb6\u66f4\u597d\u5730\u7406\u89e3\u5b83\u4eec\u7684\u4f5c\u7528\u548c\u5b9e\u9645\u5e94\u7528\u3002<\/p>\n

1. \u9632\u706b\u5899\uff1a\u7f51\u7edc\u5b89\u5168\u7684\u7b2c\u4e00\u9053\u9632\u7ebf<\/h2>\n

1.1 \u4ec0\u4e48\u662f\u9632\u706b\u5899<\/h3>\n

\u9632\u706b\u5899\u5c31\u50cf\u662f\u7f51\u7edc\u4e16\u754c\u7684”\u95e8\u536b”\uff0c\u5b83\u7ad9\u5728\u5185\u90e8\u7f51\u7edc\u548c\u5916\u90e8\u7f51\u7edc\u4e4b\u95f4\uff0c\u6839\u636e\u9884\u5148\u8bbe\u5b9a\u7684\u5b89\u5168\u89c4\u5219\u6765\u51b3\u5b9a\u54ea\u4e9b\u6570\u636e\u5305\u53ef\u4ee5\u901a\u8fc7\uff0c\u54ea\u4e9b\u5e94\u8be5\u88ab\u62e6\u622a\u3002<\/p>\n

\u5728\u5d4c\u5165\u5f0f\u7cfb\u7edf\u4e2d\uff0c\u9632\u706b\u5899\u53ef\u4ee5\u662f\u786c\u4ef6\u8bbe\u5907\uff0c\u4e5f\u53ef\u4ee5\u662f\u8fd0\u884c\u5728 Linux \u7cfb\u7edf\u4e0a\u7684\u8f6f\u4ef6\u6a21\u5757\u3002<\/p>\n

\u6211\u5728\u505a\u8f66\u8f7d\u7f51\u5173\u9879\u76ee\u65f6\uff0c\u5c31\u9700\u8981\u5728\u5d4c\u5165\u5f0f Linux \u7cfb\u7edf\u4e0a\u914d\u7f6e iptables \u9632\u706b\u5899\uff0c\u6765\u63a7\u5236\u8f66\u5185\u5404\u4e2a ECU\uff08\u7535\u5b50\u63a7\u5236\u5355\u5143\uff09\u4e4b\u95f4\u7684\u901a\u4fe1\u3002<\/p>\n

\u8fd9\u4e2a\u9632\u706b\u5899\u9700\u8981\u786e\u4fdd\u53ea\u6709\u5408\u6cd5\u7684 CAN \u603b\u7ebf\u6d88\u606f\u548c\u4ee5\u592a\u7f51\u6570\u636e\u5305\u80fd\u591f\u5728\u4e0d\u540c\u7684\u8f66\u8f7d\u7f51\u7edc\u57df\u4e4b\u95f4\u4f20\u9012\u3002<\/p>\n

1.2 \u9632\u706b\u5899\u7684\u5de5\u4f5c\u539f\u7406<\/h3>\n

\u9632\u706b\u5899\u4e3b\u8981\u901a\u8fc7\u4ee5\u4e0b\u51e0\u79cd\u65b9\u5f0f\u6765\u8fc7\u6ee4\u7f51\u7edc\u6d41\u91cf\uff1a<\/p>\n

1.2.1 \u5305\u8fc7\u6ee4<\/strong><\/p>\n

\u8fd9\u662f\u6700\u57fa\u7840\u7684\u9632\u706b\u5899\u6280\u672f\uff0c\u5b83\u4f1a\u68c0\u67e5\u6bcf\u4e2a\u6570\u636e\u5305\u7684\u6e90 IP \u5730\u5740\u3001\u76ee\u6807 IP \u5730\u5740\u3001\u7aef\u53e3\u53f7\u3001\u534f\u8bae\u7c7b\u578b\u7b49\u4fe1\u606f\uff0c\u7136\u540e\u6839\u636e\u89c4\u5219\u51b3\u5b9a\u662f\u5426\u653e\u884c\u3002<\/p>\n

\u5728\u5d4c\u5165\u5f0f Linux \u7cfb\u7edf\u4e2d\uff0c\u6211\u4eec\u901a\u5e38\u4f7f\u7528 iptables \u6765\u5b9e\u73b0\u5305\u8fc7\u6ee4\u529f\u80fd\u3002<\/p>\n

\u4e3e\u4e2a\u4f8b\u5b50\uff0c\u5047\u8bbe\u6211\u4eec\u7684\u5d4c\u5165\u5f0f\u8bbe\u5907\u53ea\u5141\u8bb8 SSH \u8fde\u63a5\uff0822 \u7aef\u53e3\uff09\u548c HTTP \u670d\u52a1\uff0880 \u7aef\u53e3\uff09\uff0c\u53ef\u4ee5\u8fd9\u6837\u914d\u7f6e\uff1a<\/p>\n

\/\/ \u5728\u5d4c\u5165\u5f0fLinux\u7cfb\u7edf\u4e2d\uff0c\u901a\u5e38\u901a\u8fc7system()\u51fd\u6570\u8c03\u7528iptables\u547d\u4ee4\n#include <stdlib.h>\n#include <stdio.h>\n\u200b\nvoid configure_firewall(void) {\n    \/\/ \u6e05\u7a7a\u73b0\u6709\u89c4\u5219\n    system("iptables -F");\n    \n    \/\/ \u8bbe\u7f6e\u9ed8\u8ba4\u7b56\u7565\uff1a\u62d2\u7edd\u6240\u6709\u5165\u7ad9\u8fde\u63a5\n    system("iptables -P INPUT DROP");\n    system("iptables -P FORWARD DROP");\n    system("iptables -P OUTPUT ACCEPT");\n    \n    \/\/ \u5141\u8bb8\u672c\u5730\u56de\u73af\u63a5\u53e3\n    system("iptables -A INPUT -i lo -j ACCEPT");\n    \n    \/\/ \u5141\u8bb8\u5df2\u5efa\u7acb\u7684\u8fde\u63a5\n    system("iptables -A INPUT -m state --state ESTABLISHED\uff0cRELATED -j ACCEPT");\n    \n    \/\/ \u5141\u8bb8SSH\u8fde\u63a5\n    system("iptables -A INPUT -p tcp --dport 22 -j ACCEPT");\n    \n    \/\/ \u5141\u8bb8HTTP\u8fde\u63a5\n    system("iptables -A INPUT -p tcp --dport 80 -j ACCEPT");\n    \n    printf("Firewall configured successfully\/n");\n}<\/code><\/pre>\n
1.2.2 \u72b6\u6001\u68c0\u6d4b<\/strong><\/p>\n
\u72b6\u6001\u68c0\u6d4b\u9632\u706b\u5899\u4e0d\u4ec5\u68c0\u67e5\u5355\u4e2a\u6570\u636e\u5305\uff0c\u8fd8\u4f1a\u8ddf\u8e2a\u6574\u4e2a\u8fde\u63a5\u7684\u72b6\u6001\u3002<\/p>\n
\u5b83\u4f1a\u8bb0\u4f4f\u54ea\u4e9b\u8fde\u63a5\u662f\u5408\u6cd5\u5efa\u7acb\u7684\uff0c\u7136\u540e\u53ea\u5141\u8bb8\u5c5e\u4e8e\u8fd9\u4e9b\u8fde\u63a5\u7684\u6570\u636e\u5305\u901a\u8fc7\u3002<\/p>\n
\u8fd9\u79cd\u65b9\u5f0f\u6bd4\u7b80\u5355\u7684\u5305\u8fc7\u6ee4\u66f4\u52a0\u667a\u80fd\u548c\u5b89\u5168\u3002<\/p>\n
\u5728\u6211\u4eec\u7684\u8f66\u8f7d\u7cfb\u7edf\u4e2d\uff0c\u8bca\u65ad\u5de5\u5177\u9700\u8981\u901a\u8fc7 UDS\uff08\u7edf\u4e00\u8bca\u65ad\u670d\u52a1\uff09\u534f\u8bae\u4e0e ECU \u901a\u4fe1\u3002<\/p>\n
\u72b6\u6001\u68c0\u6d4b\u9632\u706b\u5899\u53ef\u4ee5\u786e\u4fdd\u53ea\u6709\u5728\u8bca\u65ad\u4f1a\u8bdd\u6b63\u786e\u5efa\u7acb\u540e\uff0c\u540e\u7eed\u7684\u8bca\u65ad\u547d\u4ee4\u624d\u80fd\u88ab\u6267\u884c\u3002<\/p>\n
1.2.3 \u5e94\u7528\u5c42\u8fc7\u6ee4<\/strong><\/p>\n
\u66f4\u9ad8\u7ea7\u7684\u9632\u706b\u5899\u8fd8\u80fd\u68c0\u67e5\u5e94\u7528\u5c42\u7684\u6570\u636e\u5185\u5bb9\u3002<\/p>\n
\u6bd4\u5982\uff0c\u5b83\u53ef\u4ee5\u8bc6\u522b HTTP \u8bf7\u6c42\u4e2d\u662f\u5426\u5305\u542b\u6076\u610f\u4ee3\u7801\uff0c\u6216\u8005\u68c0\u67e5 FTP \u4f20\u8f93\u7684\u6587\u4ef6\u7c7b\u578b\u662f\u5426\u7b26\u5408\u5b89\u5168\u7b56\u7565\u3002<\/p>\n
1.3 \u5d4c\u5165\u5f0f\u7cfb\u7edf\u4e2d\u7684\u9632\u706b\u5899\u5b9e\u73b0<\/h3>\n
\u5728\u5d4c\u5165\u5f0f Linux \u7cfb\u7edf\u4e2d\uff0c\u6211\u4eec\u7ecf\u5e38\u9700\u8981\u7f16\u5199\u7a0b\u5e8f\u6765\u52a8\u6001\u7ba1\u7406\u9632\u706b\u5899\u89c4\u5219\u3002<\/p>\n
\u4e0b\u9762\u662f\u4e00\u4e2a\u5b9e\u9645\u7684\u4f8b\u5b50\uff0c\u5c55\u793a\u5982\u4f55\u5728 STM32+Linux \u7684\u7ec4\u5408\u7cfb\u7edf\u4e2d\u5b9e\u73b0\u7b80\u5355\u7684\u9632\u706b\u5899\u7ba1\u7406\uff1a<\/p>\n
#include <stdio.h>\n#include <string.h>\n#include <stdbool.h>\n\u200b\n#define MAX_RULES 100\n#define MAX_IP_LEN 16\n\u200b\ntypedef struct {\n    char src_ip[MAX_IP_LEN];\n    char dst_ip[MAX_IP_LEN];\n    int src_port;\n    int dst_port;\n    char protocol[10];  \/\/ TCP\uff0c UDP\uff0c ICMP\n    bool allow;         \/\/ true: \u5141\u8bb8\uff0c false: \u62d2\u7edd\n} FirewallRule;\n\u200b\ntypedef struct {\n    FirewallRule rules[MAX_RULES];\n    int rule_count;\n} FirewallConfig;\n\u200b\nFirewallConfig fw_config = {0};\n\u200b\n\/\/ \u6dfb\u52a0\u9632\u706b\u5899\u89c4\u5219\nbool add_firewall_rule(const char* src_ip\uff0c const char* dst_ip\uff0c \n                       int src_port\uff0c int dst_port\uff0c \n                       const char* protocol\uff0c bool allow) {\n    if (fw_config.rule_count >= MAX_RULES) {\n        printf("Error: Firewall rule table is full\/n");\n        return false;\n    }\n    \n    FirewallRule* rule = &fw_config.rules[fw_config.rule_count];\n    strncpy(rule->src_ip\uff0c src_ip\uff0c MAX_IP_LEN - 1);\n    strncpy(rule->dst_ip\uff0c dst_ip\uff0c MAX_IP_LEN - 1);\n    rule->src_port = src_port;\n    rule->dst_port = dst_port;\n    strncpy(rule->protocol\uff0c protocol\uff0c 9);\n    rule->allow = allow;\n    \n    fw_config.rule_count++;\n    \n    printf("Added rule: %s:%d -> %s:%d (%s) [%s]\/n"\uff0c\n           src_ip\uff0c src_port\uff0c dst_ip\uff0c dst_port\uff0c protocol\uff0c\n           allow ? "ALLOW" : "DENY");\n    \n    return true;\n}\n\u200b\n\/\/ \u68c0\u67e5\u6570\u636e\u5305\u662f\u5426\u88ab\u5141\u8bb8\u901a\u8fc7\nbool check_packet(const char* src_ip\uff0c const char* dst_ip\uff0c\n                  int src_port\uff0c int dst_port\uff0c\n                  const char* protocol) {\n    for (int i = 0; i < fw_config.rule_count; i++) {\n        FirewallRule* rule = &fw_config.rules[i];\n        \n        \/\/ \u68c0\u67e5\u662f\u5426\u5339\u914d\u89c4\u5219\n        if ((strcmp(rule->src_ip\uff0c "0.0.0.0") == 0 || \n             strcmp(rule->src_ip\uff0c src_ip) == 0) &&\n            (strcmp(rule->dst_ip\uff0c "0.0.0.0") == 0 || \n             strcmp(rule->dst_ip\uff0c dst_ip) == 0) &&\n            (rule->src_port == 0 || rule->src_port == src_port) &&\n            (rule->dst_port == 0 || rule->dst_port == dst_port) &&\n            strcmp(rule->protocol\uff0c protocol) == 0) {\n            \n            return rule->allow;\n        }\n    }\n    \n    \/\/ \u9ed8\u8ba4\u62d2\u7edd\n    return false;\n}\n\u200b\n\/\/ \u521d\u59cb\u5316\u9632\u706b\u5899\u914d\u7f6e\nvoid init_firewall(void) {\n    fw_config.rule_count = 0;\n    \n    \/\/ \u6dfb\u52a0\u4e00\u4e9b\u57fa\u672c\u89c4\u5219\n    add_firewall_rule("0.0.0.0"\uff0c "0.0.0.0"\uff0c 0\uff0c 22\uff0c "TCP"\uff0c true);   \/\/ \u5141\u8bb8SSH\n    add_firewall_rule("0.0.0.0"\uff0c "0.0.0.0"\uff0c 0\uff0c 80\uff0c "TCP"\uff0c true);   \/\/ \u5141\u8bb8HTTP\n    add_firewall_rule("0.0.0.0"\uff0c "0.0.0.0"\uff0c 0\uff0c 443\uff0c "TCP"\uff0c true);  \/\/ \u5141\u8bb8HTTPS\n    add_firewall_rule("192.168.1.100"\uff0c "0.0.0.0"\uff0c 0\uff0c 0\uff0c "TCP"\uff0c false); \/\/ \u963b\u6b62\u7279\u5b9aIP\n}<\/code><\/pre>\n
\u8fd9\u4e2a\u4f8b\u5b50\u5c55\u793a\u4e86\u5982\u4f55\u5728\u5d4c\u5165\u5f0f\u7cfb\u7edf\u4e2d\u5b9e\u73b0\u4e00\u4e2a\u7b80\u5355\u7684\u9632\u706b\u5899\u89c4\u5219\u5f15\u64ce\u3002<\/p>\n
\u5728\u5b9e\u9645\u5e94\u7528\u4e2d\uff0c\u6211\u4eec\u4f1a\u628a\u8fd9\u4e9b\u89c4\u5219\u540c\u6b65\u5230 Linux \u5185\u6838\u7684 netfilter \u6846\u67b6\u4e2d\uff0c\u8ba9\u5185\u6838\u6765\u6267\u884c\u5b9e\u9645\u7684\u5305\u8fc7\u6ee4\u64cd\u4f5c\u3002<\/p>\n
2. \u5165\u4fb5\u6d4b\u8bd5\uff1a\u4e3b\u52a8\u53d1\u73b0\u5b89\u5168\u6f0f\u6d1e<\/h2>\n
2.1 \u4ec0\u4e48\u662f\u5165\u4fb5\u6d4b\u8bd5<\/h3>\n
\u5165\u4fb5\u6d4b\u8bd5\uff08Penetration Testing\uff09\uff0c\u4e5f\u53eb\u6e17\u900f\u6d4b\u8bd5\uff0c\u662f\u4e00\u79cd\u4e3b\u52a8\u7684\u5b89\u5168\u8bc4\u4f30\u65b9\u6cd5\u3002<\/p>\n
\u5b83\u6a21\u62df\u9ed1\u5ba2\u7684\u653b\u51fb\u624b\u6bb5\uff0c\u5c1d\u8bd5\u627e\u51fa\u7cfb\u7edf\u4e2d\u7684\u5b89\u5168\u6f0f\u6d1e\u3002<\/p>\n
\u4e0e\u9632\u706b\u5899\u7684\u88ab\u52a8\u9632\u5fa1\u4e0d\u540c\uff0c\u5165\u4fb5\u6d4b\u8bd5\u662f\u4e00\u79cd\u8fdb\u653b\u6027\u7684\u5b89\u5168\u68c0\u6d4b\u624b\u6bb5\u3002<\/p>\n
\u5728\u6211\u8d1f\u8d23\u7684\u6c7d\u8f66\u7535\u5b50\u9879\u76ee\u4e2d\uff0c\u6bcf\u6b21\u53d1\u5e03\u65b0\u7248\u672c\u7684\u8f66\u8f7d\u7cfb\u7edf\u56fa\u4ef6\u4e4b\u524d\uff0c\u6211\u4eec\u90fd\u4f1a\u8fdb\u884c\u5168\u9762\u7684\u5165\u4fb5\u6d4b\u8bd5\u3002<\/p>\n
\u8fd9\u5305\u62ec\u6d4b\u8bd5\u8f66\u8f7d\u7f51\u5173\u662f\u5426\u80fd\u62b5\u5fa1\u5404\u79cd\u7f51\u7edc\u653b\u51fb\uff0c\u8bca\u65ad\u63a5\u53e3\u662f\u5426\u5b58\u5728\u672a\u6388\u6743\u8bbf\u95ee\u7684\u98ce\u9669\uff0c\u4ee5\u53ca OTA\uff08\u7a7a\u4e2d\u5347\u7ea7\uff09\u7cfb\u7edf\u662f\u5426\u53ef\u80fd\u88ab\u52ab\u6301\u7b49\u3002<\/p>\n
2.2 \u5165\u4fb5\u6d4b\u8bd5\u7684\u4e3b\u8981\u65b9\u6cd5<\/h3>\n
2.2.1 \u7aef\u53e3\u626b\u63cf<\/strong><\/p>\n
\u7aef\u53e3\u626b\u63cf\u662f\u5165\u4fb5\u6d4b\u8bd5\u7684\u7b2c\u4e00\u6b65\uff0c\u5b83\u7528\u6765\u53d1\u73b0\u76ee\u6807\u7cfb\u7edf\u5f00\u653e\u4e86\u54ea\u4e9b\u7f51\u7edc\u7aef\u53e3\u548c\u670d\u52a1\u3002<\/p>\n
\u5728\u5d4c\u5165\u5f0f\u7cfb\u7edf\u4e2d\uff0c\u6211\u4eec\u53ef\u4ee5\u4f7f\u7528 nmap \u7b49\u5de5\u5177\u6765\u626b\u63cf\u8bbe\u5907\uff0c\u770b\u770b\u662f\u5426\u6709\u4e0d\u5e94\u8be5\u5f00\u653e\u7684\u7aef\u53e3\u3002<\/p>\n
\u4e0b\u9762\u662f\u4e00\u4e2a\u7b80\u5355\u7684\u7aef\u53e3\u626b\u63cf\u7a0b\u5e8f\u793a\u4f8b\uff1a<\/p>\n
#include <stdio.h>\n#include <stdlib.h>\n#include <string.h>\n#include <sys\/socket.h>\n#include <arpa\/inet.h>\n#include <unistd.h>\n#include <errno.h>\n\u200b\n#define TIMEOUT 2\n\u200b\n\/\/ \u68c0\u67e5\u5355\u4e2a\u7aef\u53e3\u662f\u5426\u5f00\u653e\nbool check_port(const char* ip\uff0c int port) {\n    int sock;\n    struct sockaddr_in target;\n    struct timeval timeout;\n    \n    sock = socket(AF_INET\uff0c SOCK_STREAM\uff0c 0);\n    if (sock < 0) {\n        return false;\n    }\n    \n    \/\/ \u8bbe\u7f6e\u8d85\u65f6\n    timeout.tv_sec = TIMEOUT;\n    timeout.tv_usec = 0;\n    setsockopt(sock\uff0c SOL_SOCKET\uff0c SO_RCVTIMEO\uff0c &timeout\uff0c sizeof(timeout));\n    setsockopt(sock\uff0c SOL_SOCKET\uff0c SO_SNDTIMEO\uff0c &timeout\uff0c sizeof(timeout));\n    \n    target.sin_family = AF_INET;\n    target.sin_port = htons(port);\n    target.sin_addr.s_addr = inet_addr(ip);\n    \n    \/\/ \u5c1d\u8bd5\u8fde\u63a5\n    int result = connect(sock\uff0c (struct sockaddr*)&target\uff0c sizeof(target));\n    close(sock);\n    \n    return (result == 0);\n}\n\u200b\n\/\/ \u626b\u63cf\u6307\u5b9aIP\u7684\u7aef\u53e3\u8303\u56f4\nvoid scan_ports(const char* ip\uff0c int start_port\uff0c int end_port) {\n    printf("Scanning %s from port %d to %d...\/n"\uff0c ip\uff0c start_port\uff0c end_port);\n    printf("Open ports:\/n");\n    \n    for (int port = start_port; port <= end_port; port++) {\n        if (check_port(ip\uff0c port)) {\n            printf("  Port %d is OPEN\/n"\uff0c port);\n        }\n        \n        \/\/ \u6bcf\u626b\u63cf10\u4e2a\u7aef\u53e3\u663e\u793a\u8fdb\u5ea6\n        if (port % 10 == 0) {\n            printf("Progress: %d\/%d\/r"\uff0c port - start_port\uff0c end_port - start_port);\n            fflush(stdout);\n        }\n    }\n    \n    printf("\/nScan completed.\/n");\n}\n\u200b\nint main(int argc\uff0c char* argv[]) {\n    if (argc != 4) {\n        printf("Usage: %s <IP> <start_port> <end_port>\/n"\uff0c argv[0]);\n        return 1;\n    }\n    \n    const char* ip = argv[1];\n    int start_port = atoi(argv[2]);\n    int end_port = atoi(argv[3]);\n    \n    scan_ports(ip\uff0c start_port\uff0c end_port);\n    \n    return 0;\n}<\/code><\/pre>\n
2.2.2 \u6f0f\u6d1e\u626b\u63cf<\/strong><\/p>\n
\u6f0f\u6d1e\u626b\u63cf\u4f1a\u68c0\u67e5\u7cfb\u7edf\u4e2d\u5df2\u77e5\u7684\u5b89\u5168\u6f0f\u6d1e\uff0c\u6bd4\u5982\u8fc7\u65f6\u7684\u8f6f\u4ef6\u7248\u672c\u3001\u9ed8\u8ba4\u5bc6\u7801\u3001\u914d\u7f6e\u9519\u8bef\u7b49\u3002<\/p>\n
\u5728\u5d4c\u5165\u5f0f\u8bbe\u5907\u4e2d\uff0c\u5e38\u89c1\u7684\u6f0f\u6d1e\u5305\u62ec\uff1aTelnet \u670d\u52a1\u4f7f\u7528\u9ed8\u8ba4\u5bc6\u7801\u3001Web \u7ba1\u7406\u754c\u9762\u5b58\u5728 SQL \u6ce8\u5165\u3001\u56fa\u4ef6\u5347\u7ea7\u8fc7\u7a0b\u6ca1\u6709\u7b7e\u540d\u9a8c\u8bc1\u7b49\u3002<\/p>\n
2.2.3 \u6a21\u7cca\u6d4b\u8bd5<\/strong><\/p>\n
\u6a21\u7cca\u6d4b\u8bd5\uff08Fuzzing\uff09\u662f\u4e00\u79cd\u81ea\u52a8\u5316\u6d4b\u8bd5\u6280\u672f\uff0c\u5b83\u5411\u76ee\u6807\u7cfb\u7edf\u53d1\u9001\u5927\u91cf\u968f\u673a\u6216\u534a\u968f\u673a\u7684\u6570\u636e\uff0c\u89c2\u5bdf\u7cfb\u7edf\u662f\u5426\u4f1a\u5d29\u6e83\u6216\u51fa\u73b0\u5f02\u5e38\u884c\u4e3a\u3002<\/p>\n
\u8fd9\u79cd\u65b9\u6cd5\u7279\u522b\u9002\u5408\u6d4b\u8bd5\u534f\u8bae\u89e3\u6790\u5668\u548c\u8f93\u5165\u5904\u7406\u6a21\u5757\u3002<\/p>\n
\u4e0b\u9762\u662f\u4e00\u4e2a\u9488\u5bf9\u4e32\u53e3\u901a\u4fe1\u7684\u7b80\u5355\u6a21\u7cca\u6d4b\u8bd5\u793a\u4f8b\uff1a<\/p>\n
#include <stdio.h>\n#include <stdlib.h>\n#include <string.h>\n#include <fcntl.h>\n#include <unistd.h>\n#include <termios.h>\n#include <time.h>\n\u200b\n#define UART_DEVICE "\/dev\/ttyUSB0"\n#define FUZZ_ITERATIONS 1000\n#define MAX_PACKET_SIZE 256\n\u200b\n\/\/ \u914d\u7f6e\u4e32\u53e3\nint configure_uart(int fd) {\n    struct termios options;\n    \n    tcgetattr(fd\uff0c &options);\n    \n    \/\/ \u8bbe\u7f6e\u6ce2\u7279\u7387\n    cfsetispeed(&options\uff0c B115200);\n    cfsetospeed(&options\uff0c B115200);\n    \n    \/\/ 8N1\n    options.c_cflag &= ~PARENB;\n    options.c_cflag &= ~CSTOPB;\n    options.c_cflag &= ~CSIZE;\n    options.c_cflag |= CS8;\n    \n    \/\/ \u539f\u59cb\u6a21\u5f0f\n    options.c_lflag &= ~(ICANON | ECHO | ECHOE | ISIG);\n    options.c_oflag &= ~OPOST;\n    \n    tcsetattr(fd\uff0c TCSANOW\uff0c &options);\n    \n    return 0;\n}\n\u200b\n\/\/ \u751f\u6210\u968f\u673a\u6570\u636e\u5305\nvoid generate_fuzz_data(unsigned char* buffer\uff0c int size) {\n    for (int i = 0; i < size; i++) {\n        buffer[i] = rand() % 256;\n    }\n}\n\u200b\n\/\/ \u6a21\u7cca\u6d4b\u8bd5\u4e3b\u51fd\u6570\nvoid uart_fuzzing(const char* device) {\n    int fd;\n    unsigned char fuzz_data[MAX_PACKET_SIZE];\n    int packet_size;\n    \n    \/\/ \u6253\u5f00\u4e32\u53e3\n    fd = open(device\uff0c O_RDWR | O_NOCTTY);\n    if (fd < 0) {\n        printf("Error: Cannot open %s\/n"\uff0c device);\n        return;\n    }\n    \n    configure_uart(fd);\n    \n    printf("Starting UART fuzzing on %s...\/n"\uff0c device);\n    printf("Iterations: %d\/n"\uff0c FUZZ_ITERATIONS);\n    \n    srand(time(NULL));\n    \n    for (int i = 0; i < FUZZ_ITERATIONS; i++) {\n        \/\/ \u968f\u673a\u751f\u6210\u6570\u636e\u5305\u5927\u5c0f\n        packet_size = (rand() % MAX_PACKET_SIZE) + 1;\n        \n        \/\/ \u751f\u6210\u968f\u673a\u6570\u636e\n        generate_fuzz_data(fuzz_data\uff0c packet_size);\n        \n        \/\/ \u53d1\u9001\u6570\u636e\n        int bytes_written = write(fd\uff0c fuzz_data\uff0c packet_size);\n        \n        if (bytes_written < 0) {\n            printf("Error writing to UART at iteration %d\/n"\uff0c i);\n            break;\n        }\n        \n        \/\/ \u7b49\u5f85\u54cd\u5e94\n        usleep(10000);  \/\/ 10ms\n        \n        \/\/ \u5c1d\u8bd5\u8bfb\u53d6\u54cd\u5e94\n        unsigned char response[MAX_PACKET_SIZE];\n        int bytes_read = read(fd\uff0c response\uff0c MAX_PACKET_SIZE);\n        \n        if (bytes_read > 0) {\n            printf("Iteration %d: Sent %d bytes\uff0c received %d bytes\/n"\uff0c \n                   i\uff0c packet_size\uff0c bytes_read);\n        }\n        \n        \/\/ \u8fdb\u5ea6\u663e\u793a\n        if (i % 100 == 0) {\n            printf("Progress: %d\/%d (%.1f%%)\/n"\uff0c \n                   i\uff0c FUZZ_ITERATIONS\uff0c (float)i\/FUZZ_ITERATIONS*100);\n        }\n    }\n    \n    close(fd);\n    printf("Fuzzing completed.\/n");\n}<\/code><\/pre>\n
2.3 \u5165\u4fb5\u6d4b\u8bd5\u7684\u5b9e\u9645\u5e94\u7528<\/h3>\n
\u5728\u6211\u7684\u5de5\u4f5c\u7ecf\u5386\u4e2d\uff0c\u5165\u4fb5\u6d4b\u8bd5\u5e2e\u52a9\u6211\u4eec\u53d1\u73b0\u4e86\u5f88\u591a\u6f5c\u5728\u7684\u5b89\u5168\u95ee\u9898\u3002<\/p>\n
\u6709\u4e00\u6b21\uff0c\u6211\u4eec\u5728\u6d4b\u8bd5\u4e00\u4e2a\u8f66\u8f7d\u5a31\u4e50\u7cfb\u7edf\u65f6\uff0c\u901a\u8fc7\u6a21\u7cca\u6d4b\u8bd5\u53d1\u73b0\u4e86\u84dd\u7259\u534f\u8bae\u6808\u7684\u4e00\u4e2a\u7f13\u51b2\u533a\u6ea2\u51fa\u6f0f\u6d1e\u3002<\/p>\n
\u653b\u51fb\u8005\u53ef\u4ee5\u901a\u8fc7\u53d1\u9001\u7279\u5236\u7684\u84dd\u7259\u6570\u636e\u5305\u8ba9\u7cfb\u7edf\u5d29\u6e83\uff0c\u751a\u81f3\u53ef\u80fd\u6267\u884c\u4efb\u610f\u4ee3\u7801\u3002<\/p>\n
\u8fd9\u4e2a\u6f0f\u6d1e\u5982\u679c\u4e0d\u88ab\u53d1\u73b0\uff0c\u5728\u8f66\u8f86\u91cf\u4ea7\u540e\u5c06\u4f1a\u662f\u4e00\u4e2a\u4e25\u91cd\u7684\u5b89\u5168\u9690\u60a3\u3002<\/p>\n
\u53e6\u4e00\u4e2a\u6848\u4f8b\u662f\u5173\u4e8e OTA \u5347\u7ea7\u7cfb\u7edf\u7684\u3002<\/p>\n
\u6211\u4eec\u7684\u5b89\u5168\u56e2\u961f\u5728\u5165\u4fb5\u6d4b\u8bd5\u4e2d\u53d1\u73b0\uff0c\u867d\u7136\u5347\u7ea7\u5305\u672c\u8eab\u6709\u6570\u5b57\u7b7e\u540d\u9a8c\u8bc1\uff0c\u4f46\u662f\u4e0b\u8f7d\u8fc7\u7a0b\u4e2d\u7684\u4e34\u65f6\u6587\u4ef6\u6ca1\u6709\u505a\u6743\u9650\u63a7\u5236\uff0c\u653b\u51fb\u8005\u53ef\u4ee5\u5728\u5347\u7ea7\u8fc7\u7a0b\u4e2d\u66ff\u6362\u4e34\u65f6\u6587\u4ef6\uff0c\u4ece\u800c\u7ed5\u8fc7\u7b7e\u540d\u9a8c\u8bc1\u3002<\/p>\n
\u8fd9\u4e2a\u53d1\u73b0\u4fc3\u4f7f\u6211\u4eec\u91cd\u65b0\u8bbe\u8ba1\u4e86\u6574\u4e2a OTA \u5347\u7ea7\u6d41\u7a0b\u3002<\/p>\n
3. \u9632\u706b\u5899\u4e0e\u5165\u4fb5\u6d4b\u8bd5\u7684\u5173\u7cfb<\/h2>\n
3.1 \u4e92\u8865\u800c\u975e\u5bf9\u7acb<\/h3>\n
\u9632\u706b\u5899\u548c\u5165\u4fb5\u6d4b\u8bd5\u4e0d\u662f\u5bf9\u7acb\u7684\uff0c\u800c\u662f\u4e92\u8865\u7684\u5b89\u5168\u63aa\u65bd\u3002<\/p>\n
\u9632\u706b\u5899\u662f\u9632\u5fa1\u5de5\u5177\uff0c\u5b83\u5728\u7cfb\u7edf\u8fd0\u884c\u65f6\u6301\u7eed\u5de5\u4f5c\uff0c\u963b\u6b62\u672a\u6388\u6743\u7684\u8bbf\u95ee\u3002<\/p>\n
\u800c\u5165\u4fb5\u6d4b\u8bd5\u662f\u8bc4\u4f30\u5de5\u5177\uff0c\u5b83\u5e2e\u52a9\u6211\u4eec\u53d1\u73b0\u9632\u5fa1\u4f53\u7cfb\u4e2d\u7684\u8584\u5f31\u73af\u8282\u3002<\/p>\n
\u53ef\u4ee5\u8fd9\u6837\u7406\u89e3\uff1a\u9632\u706b\u5899\u662f”\u76fe”\uff0c\u5165\u4fb5\u6d4b\u8bd5\u662f”\u77db”\u3002<\/p>\n
\u6211\u4eec\u7528”\u77db”\u6765\u6d4b\u8bd5”\u76fe”\u7684\u5f3a\u5ea6\uff0c\u7136\u540e\u6839\u636e\u6d4b\u8bd5\u7ed3\u679c\u6765\u52a0\u56fa”\u76fe”\u3002<\/p>\n
3.2 \u5b9e\u9645\u5de5\u4f5c\u6d41\u7a0b<\/h3>\n
\u5728\u5b9e\u9645\u7684\u5d4c\u5165\u5f0f\u7cfb\u7edf\u5f00\u53d1\u4e2d\uff0c\u6211\u901a\u5e38\u4f1a\u6309\u7167\u4ee5\u4e0b\u6d41\u7a0b\u6765\u5904\u7406\u5b89\u5168\u95ee\u9898\uff1a<\/p>\n
\u9996\u5148\uff0c\u5728\u7cfb\u7edf\u8bbe\u8ba1\u9636\u6bb5\u5c31\u914d\u7f6e\u597d\u9632\u706b\u5899\u89c4\u5219\uff0c\u5b9e\u65bd\u6700\u5c0f\u6743\u9650\u539f\u5219\uff0c\u53ea\u5f00\u653e\u5fc5\u8981\u7684\u7aef\u53e3\u548c\u670d\u52a1\u3002<\/p>\n
\u7136\u540e\uff0c\u5728\u5f00\u53d1\u5b8c\u6210\u540e\u8fdb\u884c\u5168\u9762\u7684\u5165\u4fb5\u6d4b\u8bd5\uff0c\u5c1d\u8bd5\u7a81\u7834\u9632\u706b\u5899\u7684\u9632\u62a4\u3002<\/p>\n
\u5982\u679c\u5728\u6d4b\u8bd5\u4e2d\u53d1\u73b0\u4e86\u6f0f\u6d1e\uff0c\u5c31\u4fee\u590d\u4ee3\u7801\u5e76\u66f4\u65b0\u9632\u706b\u5899\u89c4\u5219\u3002<\/p>\n
\u6700\u540e\uff0c\u5728\u7cfb\u7edf\u90e8\u7f72\u540e\uff0c\u7ee7\u7eed\u76d1\u63a7\u9632\u706b\u5899\u65e5\u5fd7\uff0c\u5b9a\u671f\u8fdb\u884c\u5165\u4fb5\u6d4b\u8bd5\uff0c\u786e\u4fdd\u7cfb\u7edf\u59cb\u7ec8\u5904\u4e8e\u5b89\u5168\u72b6\u6001\u3002<\/p>\n
3.3 \u6301\u7eed\u6539\u8fdb<\/h3>\n
\u7f51\u7edc\u5b89\u5168\u4e0d\u662f\u4e00\u6b21\u6027\u7684\u5de5\u4f5c\uff0c\u800c\u662f\u4e00\u4e2a\u6301\u7eed\u6539\u8fdb\u7684\u8fc7\u7a0b\u3002<\/p>\n
\u65b0\u7684\u653b\u51fb\u624b\u6bb5\u4e0d\u65ad\u51fa\u73b0\uff0c\u6211\u4eec\u7684\u9632\u5fa1\u63aa\u65bd\u4e5f\u9700\u8981\u4e0d\u65ad\u66f4\u65b0\u3002<\/p>\n
\u5b9a\u671f\u7684\u5165\u4fb5\u6d4b\u8bd5\u53ef\u4ee5\u5e2e\u52a9\u6211\u4eec\u53ca\u65f6\u53d1\u73b0\u65b0\u7684\u5b89\u5168\u5a01\u80c1\uff0c\u800c\u9632\u706b\u5899\u89c4\u5219\u4e5f\u9700\u8981\u6839\u636e\u6d4b\u8bd5\u7ed3\u679c\u548c\u5b9e\u9645\u8fd0\u884c\u60c5\u51b5\u8fdb\u884c\u8c03\u6574\u3002<\/p>\n
\u5728\u6211\u7ba1\u7406\u7684\u9879\u76ee\u4e2d\uff0c\u6211\u4eec\u5efa\u7acb\u4e86\u4e00\u4e2a\u5b89\u5168\u53cd\u9988\u5faa\u73af\uff1a\u6bcf\u6b21\u5165\u4fb5\u6d4b\u8bd5\u540e\uff0c\u90fd\u4f1a\u751f\u6210\u8be6\u7ec6\u7684\u6d4b\u8bd5\u62a5\u544a\uff0c\u5217\u51fa\u53d1\u73b0\u7684\u6240\u6709\u95ee\u9898\u548c\u5efa\u8bae\u7684\u4fee\u590d\u65b9\u6848\u3002<\/p>\n
\u5f00\u53d1\u56e2\u961f\u6839\u636e\u62a5\u544a\u4fee\u590d\u95ee\u9898\uff0c\u7136\u540e\u518d\u6b21\u8fdb\u884c\u6d4b\u8bd5\u9a8c\u8bc1\u3002<\/p>\n
\u8fd9\u4e2a\u5faa\u73af\u4e0d\u65ad\u91cd\u590d\uff0c\u786e\u4fdd\u7cfb\u7edf\u7684\u5b89\u5168\u6027\u6301\u7eed\u63d0\u5347\u3002<\/p>\n
4. \u5199\u5728\u6700\u540e<\/h2>\n
\u4f5c\u4e3a\u5d4c\u5165\u5f0f\u7a0b\u5e8f\u5458\uff0c\u6211\u4eec\u4e0d\u4ec5\u8981\u5173\u6ce8\u529f\u80fd\u5b9e\u73b0\uff0c\u66f4\u8981\u91cd\u89c6\u7cfb\u7edf\u7684\u5b89\u5168\u6027\u3002<\/p>\n
\u9632\u706b\u5899\u548c\u5165\u4fb5\u6d4b\u8bd5\u662f\u4fdd\u969c\u7cfb\u7edf\u5b89\u5168\u7684\u4e24\u4e2a\u91cd\u8981\u624b\u6bb5\uff0c\u638c\u63e1\u5b83\u4eec\u7684\u539f\u7406\u548c\u5e94\u7528\u65b9\u6cd5\uff0c\u5bf9\u6211\u4eec\u7684\u804c\u4e1a\u53d1\u5c55\u975e\u5e38\u6709\u5e2e\u52a9\u3002<\/p>\n
\u7279\u522b\u662f\u5728\u7269\u8054\u7f51\u548c\u8f66\u8054\u7f51\u5feb\u901f\u53d1\u5c55\u7684\u4eca\u5929\uff0c\u5d4c\u5165\u5f0f\u8bbe\u5907\u7684\u5b89\u5168\u95ee\u9898\u8d8a\u6765\u8d8a\u53d7\u5230\u91cd\u89c6\uff0c\u5177\u5907\u5b89\u5168\u6d4b\u8bd5\u80fd\u529b\u7684\u5d4c\u5165\u5f0f\u5de5\u7a0b\u5e08\u4e5f\u8d8a\u6765\u8d8a\u62a2\u624b\u3002<\/p>\n
\u5e0c\u671b\u8fd9\u7bc7\u6587\u7ae0\u80fd\u5e2e\u52a9\u5927\u5bb6\u66f4\u597d\u5730\u7406\u89e3\u9632\u706b\u5899\u548c\u5165\u4fb5\u6d4b\u8bd5\u7684\u6982\u5ff5\u548c\u5e94\u7528\u3002<\/p>\n
\u5982\u679c\u4f60\u5728\u5b9e\u9645\u5de5\u4f5c\u4e2d\u9047\u5230\u76f8\u5173\u7684\u5b89\u5168\u95ee\u9898\uff0c\u4e0d\u59a8\u5c1d\u8bd5\u7528\u4eca\u5929\u4ecb\u7ecd\u7684\u65b9\u6cd5\u6765\u89e3\u51b3\u3002<\/p>\n
\u8bb0\u4f4f\uff0c\u5b89\u5168\u65e0\u5c0f\u4e8b\uff0c\u6bcf\u4e00\u4e2a\u7ec6\u8282\u90fd\u53ef\u80fd\u6210\u4e3a\u653b\u51fb\u8005\u7684\u7a81\u7834\u53e3\u3002<\/p>\n
\u8ba9\u6211\u4eec\u4e00\u8d77\u52aa\u529b\uff0c\u6253\u9020\u66f4\u5b89\u5168\u7684\u5d4c\u5165\u5f0f\u7cfb\u7edf\u3002<\/p>\n
\u66f4\u591a\u7f16\u7a0b\u5b66\u4e60\u8d44\u6e90<\/strong><\/p>\n