接口卡信息获取
- 这里是外面有地方需要获取en0信息，所以使用了一个map，以接口卡名字为键，保存了对应的接口卡信息
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std::vector<std::map<std::string, std::string>> genInterfaceAddresses(std::string &context) { std::vector<std::map<std::string, std::string>> results; struct ifaddrs *if_addrs = nullptr; struct ifaddrs *if_addr = nullptr; if (getifaddrs(&if_addrs) != 0 || if_addrs == nullptr) { return {}; } std::map<std::string, std::map<std::string, std::string>> tmp_res; for (if_addr = if_addrs; if_addr != nullptr; if_addr = if_addr->ifa_next) { if (if_addr->ifa_addr == nullptr) { continue; } std::string inter; std::map<std::string, std::string> res; res.clear(); inter.clear(); do { if (if_addr->ifa_addr->sa_family != AF_INET && if_addr->ifa_addr->sa_family != AF_INET6) { break; } if (if_addr->ifa_name == nullptr) { break; } inter = std::string(if_addr->ifa_name); if (tmp_res.find(inter) != tmp_res.end()) { if (if_addr->ifa_addr != nullptr && (!inter.compare("en0") || tmp_res[inter]["address"].empty())) { tmp_res[inter]["address"] = ipAsString(static_cast<struct sockaddr *>(if_addr->ifa_addr)); } if (if_addr->ifa_netmask != nullptr && !inter.compare("en0") || tmp_res[inter]["mask"].empty()) { tmp_res[inter]["mask"] = ipAsString(static_cast<struct sockaddr *>(if_addr->ifa_netmask)); } break; } res["interface"] = inter; if (if_addr->ifa_addr != nullptr) { res["address"] = ipAsString(static_cast<struct sockaddr *>(if_addr->ifa_addr)); } if (if_addr->ifa_netmask != nullptr) { res["mask"] = ipAsString(static_cast<struct sockaddr *>(if_addr->ifa_netmask)); } tmp_res[inter] = res; } while(false); do { if (if_addr->ifa_addr->sa_family != AF_LINK) { break; } if (if_addr->ifa_name == nullptr) { break; } inter = std::string(if_addr->ifa_name); if (tmp_res.find(inter) != tmp_res.end()) { tmp_res[inter]["mac"] = macAsString(if_addr); break; } res["interface"] = inter; res["mac"] = macAsString(if_addr); tmp_res[inter] = res; } while (false); } freeifaddrs(if_addrs); for (auto item : tmp_res) { results.push_back(std::move(item.second)); } return results; } |
路由（网关）相关信息获取
注释
- 获取所有接口卡的路由信息，内容示例如下：
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"destination" "240e:398:383:c930:1c79:e6ae:3e35:74a1" "gateway" "9c:3e:53:8c:a8:7e" "interface" "lo0" "metric" "0" "source" "" "type" "local" |
- 这里的功能需要的是en0的相关信息，所以在后面根据interface进行了过滤
- 拿到的en0的数据其实也是有很多，这里的做法是取了destination为
0.0.0.0的数据 - 为什么这么取，根据单步调试所有数据的结果，暂时根据这个去拿（0.0.0.0这里对应的是IPv4地址）
code
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void genRouteTableType(std::pair<int, std::string> type, std::map<int, std::string> ifmap, std::vector<std::map<std::string, std::string>> &results) { size_t table_size; int mib[] = {CTL_NET, PF_ROUTE, 0, AF_UNSPEC, NET_RT_FLAGS, type.first}; if (sysctl(mib, sizeof(mib) / sizeof(int), nullptr, &table_size, nullptr, 0) < 0 || table_size == 0) { return; } auto table = (char *)malloc(table_size); if (sysctl(mib, sizeof(mib) / sizeof(int), table, &table_size, nullptr, 0) < 0) { free(table); return; } size_t message_length = 0; for (char *p = table; p < table + table_size; p += message_length) { auto route = (struct rt_msghdr *)p; auto sa = (struct sockaddr *)(route + 1); message_length = route->rtm_msglen; // Populate route's sockaddr table (dest, gw, mask). std::vector<struct sockaddr *> addr_map; for (int i = 0; i < RTAX_MAX; i++) { if (route->rtm_addrs & (1 << i)) { addr_map.push_back(sa); sa = (struct sockaddr *)((char *)sa + (sa->sa_len)); } else { addr_map.push_back(nullptr); } } std::map<std::string, std::string> res; // Both route and arp tables may include an interface. if ((route->rtm_addrs & RTA_GATEWAY) == RTA_GATEWAY) { res["interface"] = ifmap[(int)route->rtm_index]; } Status row_status; if (type.second != "linklayer") { res["type"] = type.second; row_status = genRoute(route, addr_map, res); } else { // row_status = genArp(route, addr_map, res); } // if (row_status == Status::STATUS_SUCCESS) { results.push_back(res); // } } free(table); } std::map<int, std::string> genInterfaceMap() { std::map<int, std::string> ifmap; struct ifaddrs *if_addrs = nullptr, *if_addr = nullptr; if (getifaddrs(&if_addrs) != 0 || if_addrs == nullptr) { return ifmap; } std::map<int, std::string>::iterator it = ifmap.begin(); for (if_addr = if_addrs; if_addr != nullptr; if_addr = if_addr->ifa_next) { if (if_addr->ifa_addr != nullptr && if_addr->ifa_addr->sa_family == AF_LINK) { auto route_type = std::string(if_addr->ifa_name); auto sdl = (struct sockaddr_dl *)if_addr->ifa_addr; ifmap.insert(it, std::make_pair(sdl->sdl_index, route_type)); } } freeifaddrs(if_addrs); return ifmap; } |
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std::vector<std::map<std::string, std::string>> genRoutes(std::string &context) { std::vector<std::map<std::string, std::string>> results; std::map<int, std::string> ifmap; ifmap = genInterfaceMap(); for (const auto &route_type : kRouteTypes) { genRouteTableType(route_type, ifmap, results); } return results; } |
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auto route = genRoutes(cont); for (auto r_wi : route) { auto ite_end = r_wi.end(); auto ite = r_wi.find("interface"); if (ite == ite_end) { continue; } if (ite->second.compare("en0") != 0) { continue; } ite = r_wi.find("destination"); if (ite == ite_end) { continue; } if (ite->second.compare("0.0.0.0") != 0) { continue; } ite = r_wi.find("gateway"); if (ite != ite_end) { inf->strGateway = ite->second; } } |
当前Wi-Fi相关信息获取
注释
- 基本上，en0对应着无线网卡，所以这里取了en0的数据，拿到了SSID
code
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std::vector<std::map<std::string, std::string>> genWifiStatus(std::string& context) { std::vector<std::map<std::string, std::string>> results; @autoreleasepool { std::string interfaceName = "en0"; NSArray<CWInterface*>* interfaces = [[CWWiFiClient sharedWiFiClient] interfaces]; if (interfaces == nil || [interfaces count] == 0) { return results; } for (CWInterface* interface in interfaces) { std::map<std::string, std::string> res; res["interface"] = std::string([[interface interfaceName] UTF8String]); res["ssid"] = extractSsid((__bridge CFDataRef)[interface ssidData]); NSString* strptr = [interface bssid]; if (strptr != nil) { res["bssid"] = std::string([strptr UTF8String]); } strptr = [interface ssid]; if (strptr != nil) { res["network_name"] = std::string([strptr UTF8String]); } // NSString* country_code = [interface countryCode]; // if (country_code != nil) { // res["country_code"] = std::string([country_code UTF8String]); // } // res["rssi"] = std::to_string([interface rssiValue]); // res["noise"] = std::to_string([interface noiseMeasurement]); // res["security_type"] = getSecurityName([interface security]); // CWChannel* cwc = [interface wlanChannel]; // if (cwc != nil) { // res["channel"] = std::to_string(getChannelNumber(cwc)); // res["channel_width"] = std::to_string(getChannelWidth(cwc)); // res["channel_band"] = std::to_string(getChannelBand(cwc)); // } // res["transmit_rate"] = std::to_string([interface transmitRate]); // res["mode"] = getInterfaceModeName([interface interfaceMode]); results.push_back(res); } } return results; } |
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std::string cont; auto scan = genWifiStatus(cont); for (auto s_wi : scan) { auto end = s_wi.end(); auto ite = s_wi.find("interface"); if (ite == end) { continue; } if (ite->second.compare("en0") != 0) { continue; } ite = s_wi.find("network_name"); if (ite != end) { // inf->strWifiSsid = ite->second; } } |
所有Wi-Fi相关信息获取
注释
- 拿到的是所有识别到的Wi-Fi信息，包括经过密码验证的未经过密码验证的
code
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std::vector<std::map<std::string, std::string>> genWifiScan(std::string& context) { std::vector<std::map<std::string, std::string>> results; @autoreleasepool { NSArray<CWInterface*>* interfaces = [[CWWiFiClient sharedWiFiClient] interfaces]; if (interfaces == nil || [interfaces count] == 0) { return results; } for (CWInterface* interface in interfaces) { NSSet<CWNetwork*>* networks = [interface scanForNetworksWithName:nil error:nil]; for (CWNetwork* network in networks) { std::map<std::string, std::string> res; res["interface"] = [[interface interfaceName] UTF8String]; // res["ssid"] = extractSsid((__bridge CFDataRef)[network ssidData]); // auto bssid = [network bssid]; // if (bssid != nullptr) { // res["bssid"] = [bssid UTF8String]; // } res["network_name"] = [[network ssid] UTF8String]; // NSString* country_code = [network countryCode]; // if (country_code != nil) { // res["country_code"] = [country_code UTF8String]; // } // res["rssi"] = std::to_string([network rssiValue]); // res["noise"] = std::to_string([network noiseMeasurement]); // CWChannel* cwc = [network wlanChannel]; // if (cwc != nil) { // res["channel"] = std::to_string(getChannelNumber(cwc)); // res["channel_width"] = std::to_string(getChannelWidth(cwc)); // res["channel_band"] = std::to_string(getChannelBand(cwc)); // } results.push_back(res); } } } return results; } |
DNS信息获取
注释
- 这里引用了相关库
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#include <resolv.h> |
- 在cmake里链接了对应的静态库
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list(APPEND LIB_LIST "libresolv.a") add_library(${PROJECT_NAME} SHARED ${SRC_LIST}) target_link_libraries(${PROJECT_NAME} ${LIB_LIST}) |
命令查看当前dns
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cat /etc/resolv.conf |
code
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std::string getDns() { std::string res; if (res_init() == -1) { return {}; } std::vector<std::string> vec_res; struct __res_state& rr = _res; if (rr.nscount > 0) { for (size_t i = 0; i < static_cast<size_t>(_res.nscount); i++) { vec_res.push_back(ipAsString((const struct sockaddr*)&_res.nsaddr_list[i])); } } for (auto r : vec_res) { if (r.empty()) { continue; } res = r; } return res; } |
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