流程

• 1.获取系统中所有具有网络功能的接口配置
• 2.获取当前网络的BSD接口名称
• 3.在接口配置中查找当前网络BSD名称对应的接口本地化名称
• 4.根据本地化名称判断是以太网 (Ethernet)还是Wifi

一.获取系统中所有具有网络功能的接口配置

// 获取系统中所有具有网络功能的接口。
- (NSArray <NSDictionary <NSString *,NSString *>*>*)getNetworkServiceorder {
    
    NSMutableArray <NSDictionary <NSString *,NSString *>*>*networkServiceorder = [[NSMutableArray alloc] init];
    
    CFArrayRef ref = SCNetworkInterfaceCopyAll();
    NSArray* networkInterfaces = (__bridge NSArray *)(ref);
    for(int i = 0; i < networkInterfaces.count; i += 1) {
        
        SCNetworkInterfaceRef interface = (__bridge SCNetworkInterfaceRef)(networkInterfaces[i]);
        
        // 获取本地化名称 例如: ("Ethernet", "FireWire")
        CFStringRef displayName = SCNetworkInterfaceGetLocalizedDisplayName(interface);
        // 网络接口类型
        CFStringRef interfaceName = SCNetworkInterfaceGetInterfaceType(interface);
        // 获取bsd接口名称
        CFStringRef bsdName = SCNetworkInterfaceGetBSDName(interface);
        
        NSString *nameStr = [NSString stringWithString:(__bridge NSString *)displayName];
        NSString *ninterfaceStr = [NSString stringWithString:(__bridge NSString *)interfaceName];
        NSString *bsdStr = [NSString stringWithString:(__bridge NSString *)bsdName];
        
        [networkServiceorder addObject:@{
            @"name":nameStr,
            @"ninterface":ninterfaceStr,
            @"bsd":bsdStr
        }];
    }
    
    return networkServiceorder.copy;
}

二.获取当前网络的BSD接口名称

// 获取当前Bsd接口名称
- (NSString*)getCurrentBsdName {
    
    // 创建系统配置服务器互动会话
    SCDynamicStoreRef ds = SCDynamicStoreCreate(kCFAllocatorDefault, CFSTR("myApplication"), NULL, NULL);
    // 获取ip6配置信息
    CFDictionaryRef dr6 = SCDynamicStoreCopyValue(ds, CFSTR("State:/Network/Global/IPv6"));
    // 获取ip4配置信息
    CFDictionaryRef dr4 = SCDynamicStoreCopyValue(ds, CFSTR("State:/Network/Global/IPv4"));
    
    if (dr6) { // ip6
        
        // 获取配置信息Bsd接口名称
        CFStringRef router = CFDictionaryGetValue(dr6, CFSTR("PrimaryInterface"));
        NSString *routerString = [NSString stringWithString:(__bridge NSString *)router];
        CFRelease(dr6);
        CFRelease(ds);
        return routerString;
    } else if(dr4) { // ip4
        
        // 获取配置信息Bsd接口名称
        CFStringRef router = CFDictionaryGetValue(dr4, CFSTR("PrimaryInterface"));
        NSString *routerString = [NSString stringWithString:(__bridge NSString *)router];
        CFRelease(dr4);
        CFRelease(ds);
        return routerString;
    }
    
    CFRelease(ds);
    return 0;
}

三.在接口配置中查找当前网络BSD名称对应的接口本地化名称

    NSString *currentBsdName = [self getCurrentBsdName];
    NSArray *networkServiceorder = [self getNetworkServiceorder];
    
    NSString *localizedDisplayName;
    for (NSDictionary <NSString *,NSString *>*dict in networkServiceorder) {
        
        if ([dict[@"bsd"] isEqualToString:currentBsdName]) {
            
            // 获取bsd接口对应的本地化名称
            localizedDisplayName = dict[@"name"];
        }
    }

四.根据本地化名称判断是以太网 (Ethernet)还是Wifi

    if ([localizedDisplayName containsString:@"Ethernet"]) {
        
        NSLog(@"以太网");
    }else if ([localizedDisplayName containsString:@"Wi-Fi"]) {
        
        NSLog(@"Wifi");
    }else{
        
        NSLog(@"%@", localizedDisplayName);
    }