iOS获取设备唯一标识的实现步骤

/**  卸载应用重新安装后会不一致*/
+ (NSString *)getUUID{
    return [UIDevice currentDevice].identifierForVendor.UUIDString;;
}

#import "XWGetMAC.h"
#import <ifaddrs.h>
#import <resolv.h>
#import <arpa/inet.h>
#import <net/if.h>
#import <netdb.h>
#import <netinet/ip.h>
#import <net/ethernet.h>
#import <net/if_dl.h>

#define MDNS_PORT       5353
#define QUERY_NAME      "_apple-mobdev2._tcp.local"
#define DUMMY_MAC_ADDR  @"02:00:00:00:00:00"
#define IOS_CELLULAR    @"pdp_ip0"
#define IOS_WIFI        @"en0"
#define IOS_VPN         @"utun0"
#define IP_ADDR_IPv4    @"ipv4"
#define IP_ADDR_IPv6    @"ipv6"

+ (NSString *)getMAC:(BOOL)preferIPv4 {
    
    return [[XWGetMAC alloc] getIPAddress:preferIPv4];
}

/*
 * 获取设备当前网络IP地址
 */
- (NSString *)getIPAddress:(BOOL)preferIPv4
{
    NSArray *searchArray = preferIPv4 ?
    @[ IOS_VPN @"/" IP_ADDR_IPv4, IOS_VPN @"/" IP_ADDR_IPv6, IOS_WIFI @"/" IP_ADDR_IPv4, IOS_WIFI @"/" IP_ADDR_IPv6, IOS_CELLULAR @"/" IP_ADDR_IPv4, IOS_CELLULAR @"/" IP_ADDR_IPv6 ] :
    @[ IOS_VPN @"/" IP_ADDR_IPv6, IOS_VPN @"/" IP_ADDR_IPv4, IOS_WIFI @"/" IP_ADDR_IPv6, IOS_WIFI @"/" IP_ADDR_IPv4, IOS_CELLULAR @"/" IP_ADDR_IPv6, IOS_CELLULAR @"/" IP_ADDR_IPv4 ] ;
    
    NSDictionary *addresses = [self getIPAddr];
    
    __block NSString *address;
    [searchArray enumerateObjectsUsingBlock:^(NSString *key, NSUInteger idx, BOOL * _Nonnull stop) {
        address = addresses[key];
        //筛选出IP地址格式
        if([self isValidatIP:address]) *stop = YES;
    }];
    return address ? address : @"0.0.0.0";
}

- (BOOL)isValidatIP:(NSString *)ipAddress {
    if (ipAddress.length == 0) {
        return NO;
    }
    NSString *urlRegEx = @"^([01]?\d\d?|2[0-4]\d|25[0-5])\."
    "([01]?\d\d?|2[0-4]\d|25[0-5])\."
    "([01]?\d\d?|2[0-4]\d|25[0-5])\."
    "([01]?\d\d?|2[0-4]\d|25[0-5])$";
    
    NSError *error;
    NSRegularExpression *regex = [NSRegularExpression regularExpressionWithPattern:urlRegEx options:0 error:&error];
    
    if (regex != nil) {
        NSTextCheckingResult *firstMatch=[regex firstMatchInString:ipAddress options:0 range:NSMakeRange(0, [ipAddress length])];
        return firstMatch;
    }
    return NO;
}

- (NSDictionary *)getIPAddr
{
    NSMutableDictionary *addresses = [NSMutableDictionary dictionaryWithCapacity:8];
    
    // retrieve the current interfaces - returns 0 on success
    struct ifaddrs *interfaces;
    if(!getifaddrs(&interfaces)) {
        // Loop through linked list of interfaces
        struct ifaddrs *interface;
        for(interface=interfaces; interface; interface=interface->ifa_next) {
            if(!(interface->ifa_flags & IFF_UP) /* || (interface->ifa_flags & IFF_LOOPBACK) */ ) {
                continue; // deeply nested code harder to read
            }
            const struct sockaddr_in *addr = (const struct sockaddr_in*)interface->ifa_addr;
            char addrBuf[ MAX(INET_ADDRSTRLEN, INET6_ADDRSTRLEN) ];
            if(addr && (addr->sin_family==AF_INET || addr->sin_family==AF_INET6)) {
                NSString *name = [NSString stringWithUTF8String:interface->ifa_name];
                NSString *type;
                if(addr->sin_family == AF_INET) {
                    if(inet_ntop(AF_INET, &addr->sin_addr, addrBuf, INET_ADDRSTRLEN)) {
                        type = IP_ADDR_IPv4;
                    }
                } else {
                    const struct sockaddr_in6 *addr6 = (const struct sockaddr_in6*)interface->ifa_addr;
                    if(inet_ntop(AF_INET6, &addr6->sin6_addr, addrBuf, INET6_ADDRSTRLEN)) {
                        type = IP_ADDR_IPv6;
                    }
                }
                if(type) {
                    NSString *key = [NSString stringWithFormat:@"%@/%@", name, type];
                    addresses[key] = [NSString stringWithUTF8String:addrBuf];
                }
            }
        }
        // Free memory
        freeifaddrs(interfaces);
    }
    return [addresses count] ? addresses : nil;
}

/*
 * 获取设备物理地址
 */
- (nullable NSString *)getMacAddress {
    res_9_init();
    int len;
    //get currnet ip address
    NSString *ip = [self currentIPAddressOf:IOS_WIFI];
    if(ip == nil) {
        fprintf(stderr, "could not get current IP address of en0n");
        return DUMMY_MAC_ADDR;
    }//end if
    
    //set port and destination
    _res.nsaddr_list[0].sin_family = AF_INET;
    _res.nsaddr_list[0].sin_port = htons(MDNS_PORT);
    _res.nsaddr_list[0].sin_addr.s_addr = [self IPv4Pton:ip];
    _res.nscount = 1;
    
    unsigned char response[NS_PACKETSZ];
    
    
    //send mdns query
    if((len = res_9_query(QUERY_NAME, ns_c_in, ns_t_ptr, response, sizeof(response))) < 0) {
        
        fprintf(stderr, "res_search(): %sn", hstrerror(h_errno));
        return DUMMY_MAC_ADDR;
    }//end if
    
    //parse mdns message
    ns_msg handle;
    if(ns_initparse(response, len, &handle) < 0) {
        fprintf(stderr, "ns_initparse(): %sn", hstrerror(h_errno));
        return DUMMY_MAC_ADDR;
    }//end if
    
    //get answer length
    len = ns_msg_count(handle, ns_s_an);
    if(len < 0) {
        fprintf(stderr, "ns_msg_count return zeron");
        return DUMMY_MAC_ADDR;
    }//end if
    
    //try to get mac address from data
    NSString *macAddress = nil;
    for(int i = 0 ; i < len ; i++) {
        ns_rr rr;
        ns_parserr(&handle, ns_s_an, 0, &rr);
        
        if(ns_rr_class(rr) == ns_c_in &&
           ns_rr_type(rr) == ns_t_ptr &&
           !strcmp(ns_rr_name(rr), QUERY_NAME)) {
            char *ptr = (char *)(ns_rr_rdata(rr) + 1);
            int l = (int)strcspn(ptr, "@");
            
            char *tmp = calloc(l + 1, sizeof(char));
            if(!tmp) {
                perror("calloc()");
                continue;
            }//end if
            memcpy(tmp, ptr, l);
            macAddress = [NSString stringWithUTF8String:tmp];
            free(tmp);
        }//end if
    }//end for each
    macAddress = macAddress ? macAddress : DUMMY_MAC_ADDR;
    return macAddress;
}//end getMacAddressFromMDNS

- (nonnull NSString *)currentIPAddressOf: (nonnull NSString *)device {
    struct ifaddrs *addrs;
    NSString *ipAddress = nil;
    
    if(getifaddrs(&addrs) != 0) {
        return nil;
    }//end if
    
    //get ipv4 address
    for(struct ifaddrs *addr = addrs ; addr ; addr = addr->ifa_next) {
        if(!strcmp(addr->ifa_name, [device UTF8String])) {
            if(addr->ifa_addr) {
                struct sockaddr_in *in_addr = (struct sockaddr_in *)addr->ifa_addr;
                if(in_addr->sin_family == AF_INET) {
                    ipAddress = [self IPv4Ntop:in_addr->sin_addr.s_addr];
                    break;
                }//end if
            }//end if
        }//end if
    }//end for
    
    freeifaddrs(addrs);
    return ipAddress;
}//end currentIPAddressOf:

- (nullable NSString *)IPv4Ntop: (in_addr_t)addr {
    char buffer[INET_ADDRSTRLEN] = {0};
    return inet_ntop(AF_INET, &addr, buffer, sizeof(buffer)) ?
    [NSString stringWithUTF8String:buffer] : nil;
}//end IPv4Ntop:

- (in_addr_t)IPv4Pton: (nonnull NSString *)IPAddr {
    in_addr_t network = INADDR_NONE;
    return inet_pton(AF_INET, [IPAddr UTF8String], &network) == 1 ?
    network : INADDR_NONE;
}//end IPv4Pton:

/**  卸载应用重新安装后会不一致*/
+ (NSString *)getUUID{
    CFUUIDRef uuid = CFUUIDCreate(NULL);
    NSString *UUID = (__bridge_transfer NSString *)CFUUIDCreateString(NULL, uuid);
    CFRelease(uuid);
    return UUID;
}
 
/**  卸载应用重新安装后会不一致*/
+ (NSString *)getUUID{
    return [UIDevice currentDevice].identifierForVendor.UUIDString;;
}

#import <Foundation/Foundation.h>
#import <Security/Security.h>

/** Error codes that can be returned in NSError objects. */
typedef enum {
	/** No error. */
	SSKeychainErrorNone = noErr,
	
	/** Some of the arguments were invalid. */
	SSKeychainErrorBadArguments = -1001,
	
	/** There was no password. */
	SSKeychainErrorNoPassword = -1002,
	
	/** One or more parameters passed internally were not valid. */
	SSKeychainErrorInvalidParameter = errSecParam,
	
	/** Failed to allocate memory. */
	SSKeychainErrorFailedToAllocated = errSecAllocate,
	
	/** No trust results are available. */
	SSKeychainErrorNotAvailable = errSecNotAvailable,
	
	/** Authorization/Authentication failed. */
	SSKeychainErrorAuthorizationFailed = errSecAuthFailed,
	
	/** The item already exists. */
	SSKeychainErrorDuplicatedItem = errSecDuplicateItem,
	
	/** The item cannot be found.*/
	SSKeychainErrorNotFound = errSecItemNotFound,
	
	/** Interaction with the Security Server is not allowed. */
	SSKeychainErrorInteractionNotAllowed = errSecInteractionNotAllowed,
	
	/** Unable to decode the provided data. */
	SSKeychainErrorFailedToDecode = errSecDecode
} SSKeychainErrorCode;

extern NSString *const kSSKeychainErrorDomain;

/** Account name. */
extern NSString *const kSSKeychainAccountKey;

/**
 Time the item was created.
 
 The value will be a string.
 */
extern NSString *const kSSKeychainCreatedAtKey;

/** Item class. */
extern NSString *const kSSKeychainClassKey;

/** Item description. */
extern NSString *const kSSKeychainDescriptionKey;

/** Item label. */
extern NSString *const kSSKeychainLabelKey;

/** Time the item was last modified.
 
 The value will be a string.
 */
extern NSString *const kSSKeychainLastModifiedKey;

/** Where the item was created. */
extern NSString *const kSSKeychainWhereKey;

/**
 Simple wrapper for accessing accounts, getting passwords, setting passwords, and deleting passwords using the system
 Keychain on Mac OS X and iOS.
 
 This was originally inspired by EMKeychain and SDKeychain (both of which are now gone). Thanks to the authors.
 SSKeychain has since switched to a simpler implementation that was abstracted from [SSToolkit](http://sstoolk.it).
 */
@interface SSKeychain : NSObject

///-----------------------
/// @name Getting Accounts
///-----------------------

/**
 Returns an array containing the Keychain's accounts, or `nil` if the Keychain has no accounts.
 
 See the `NSString` constants declared in SSKeychain.h for a list of keys that can be used when accessing the
 dictionaries returned by this method.
 
 @return An array of dictionaries containing the Keychain's accounts, or `nil` if the Keychain doesn't have any
 accounts. The order of the objects in the array isn't defined.
 
 @see allAccounts:
 */
+ (NSArray *)allAccounts;

/**
 Returns an array containing the Keychain's accounts, or `nil` if the Keychain doesn't have any
 accounts.
 
 See the `NSString` constants declared in SSKeychain.h for a list of keys that can be used when accessing the
 dictionaries returned by this method.
 
 @param error If accessing the accounts fails, upon return contains an error that describes the problem.
 
 @return An array of dictionaries containing the Keychain's accounts, or `nil` if the Keychain doesn't have any
 accounts. The order of the objects in the array isn't defined.
  
 @see allAccounts
 */
+ (NSArray *)allAccounts:(NSError **)error;

/**
 Returns an array containing the Keychain's accounts for a given service, or `nil` if the Keychain doesn't have any
 accounts for the given service.
 
 See the `NSString` constants declared in SSKeychain.h for a list of keys that can be used when accessing the
 dictionaries returned by this method.
 
 @param serviceName The service for which to return the corresponding accounts.
 
 @return An array of dictionaries containing the Keychain's accountsfor a given `serviceName`, or `nil` if the Keychain
 doesn't have any accounts for the given `serviceName`. The order of the objects in the array isn't defined.
 
 @see accountsForService:error:
 */
+ (NSArray *)accountsForService:(NSString *)serviceName;

/**
 Returns an array containing the Keychain's accounts for a given service, or `nil` if the Keychain doesn't have any
 accounts for the given service.
 
 @param serviceName The service for which to return the corresponding accounts.
 
 @param error If accessing the accounts fails, upon return contains an error that describes the problem.
 
 @return An array of dictionaries containing the Keychain's accountsfor a given `serviceName`, or `nil` if the Keychain
 doesn't have any accounts for the given `serviceName`. The order of the objects in the array isn't defined.
 
 @see accountsForService:
 */
+ (NSArray *)accountsForService:(NSString *)serviceName error:(NSError **)error;


///------------------------
/// @name Getting Passwords
///------------------------

/**
 Returns a string containing the password for a given account and service, or `nil` if the Keychain doesn't have a
 password for the given parameters.
 
 @param serviceName The service for which to return the corresponding password.
 
 @param account The account for which to return the corresponding password.
 
 @return Returns a string containing the password for a given account and service, or `nil` if the Keychain doesn't
 have a password for the given parameters.
 
 @see passwordForService:account:error:
 */
+ (NSString *)passwordForService:(NSString *)serviceName account:(NSString *)account;

/**
 Returns a string containing the password for a given account and service, or `nil` if the Keychain doesn't have a
 password for the given parameters.
 
 @param serviceName The service for which to return the corresponding password.
 
 @param account The account for which to return the corresponding password.
 
 @param error If accessing the password fails, upon return contains an error that describes the problem.
 
 @return Returns a string containing the password for a given account and service, or `nil` if the Keychain doesn't
 have a password for the given parameters.
 
 @see passwordForService:account:
 */
+ (NSString *)passwordForService:(NSString *)serviceName account:(NSString *)account error:(NSError **)error;

/**
 Returns the password data for a given account and service, or `nil` if the Keychain doesn't have data 
 for the given parameters.
 
 @param serviceName The service for which to return the corresponding password.
 
 @param account The account for which to return the corresponding password.
 
 @param error If accessing the password fails, upon return contains an error that describes the problem.
 
 @return Returns a the password data for the given account and service, or `nil` if the Keychain doesn't
 have data for the given parameters.
 
 @see passwordDataForService:account:error:
 */
+ (NSData *)passwordDataForService:(NSString *)serviceName account:(NSString *)account;

/**
 Returns the password data for a given account and service, or `nil` if the Keychain doesn't have data 
 for the given parameters.
 
 @param serviceName The service for which to return the corresponding password.
 
 @param account The account for which to return the corresponding password.
 
 @param error If accessing the password fails, upon return contains an error that describes the problem.
 
 @return Returns a the password data for the given account and service, or `nil` if the Keychain doesn't
 have a password for the given parameters.
 
 @see passwordDataForService:account:
 */
+ (NSData *)passwordDataForService:(NSString *)serviceName account:(NSString *)account error:(NSError **)error;


///-------------------------
/// @name Deleting Passwords
///-------------------------

/**
 Deletes a password from the Keychain.
 
 @param serviceName The service for which to delete the corresponding password.
 
 @param account The account for which to delete the corresponding password.
 
 @return Returns `YES` on success, or `NO` on failure.
 
 @see deletePasswordForService:account:error:
 */
+ (BOOL)deletePasswordForService:(NSString *)serviceName account:(NSString *)account;

/**
 Deletes a password from the Keychain.
 
 @param serviceName The service for which to delete the corresponding password.
 
 @param account The account for which to delete the corresponding password.
 
 @param error If deleting the password fails, upon return contains an error that describes the problem.
 
 @return Returns `YES` on success, or `NO` on failure.
 
 @see deletePasswordForService:account:
 */
+ (BOOL)deletePasswordForService:(NSString *)serviceName account:(NSString *)account error:(NSError **)error;


///------------------------
/// @name Setting Passwords
///------------------------

/**
 Sets a password in the Keychain.
 
 @param password The password to store in the Keychain.
 
 @param serviceName The service for which to set the corresponding password.
 
 @param account The account for which to set the corresponding password.
 
 @return Returns `YES` on success, or `NO` on failure.
 
 @see setPassword:forService:account:error:
 */
+ (BOOL)setPassword:(NSString *)password forService:(NSString *)serviceName account:(NSString *)account;

/**
 Sets a password in the Keychain.
 
 @param password The password to store in the Keychain.
 
 @param serviceName The service for which to set the corresponding password.
 
 @param account The account for which to set the corresponding password.
 
 @param error If setting the password fails, upon return contains an error that describes the problem.
 
 @return Returns `YES` on success, or `NO` on failure.
 
 @see setPassword:forService:account:
 */
+ (BOOL)setPassword:(NSString *)password forService:(NSString *)serviceName account:(NSString *)account error:(NSError **)error;

/**
 Sets arbirary data in the Keychain.
 
 @param password The data to store in the Keychain.
 
 @param serviceName The service for which to set the corresponding password.
 
 @param account The account for which to set the corresponding password.
 
 @param error If setting the password fails, upon return contains an error that describes the problem.
 
 @return Returns `YES` on success, or `NO` on failure.
 
 @see setPasswordData:forService:account:error:
 */
+ (BOOL)setPasswordData:(NSData *)password forService:(NSString *)serviceName account:(NSString *)account;

/**
 Sets arbirary data in the Keychain.
 
 @param password The data to store in the Keychain.
 
 @param serviceName The service for which to set the corresponding password.
 
 @param account The account for which to set the corresponding password.
 
 @param error If setting the password fails, upon return contains an error that describes the problem.
 
 @return Returns `YES` on success, or `NO` on failure.
 
 @see setPasswordData:forService:account:
 */
+ (BOOL)setPasswordData:(NSData *)password forService:(NSString *)serviceName account:(NSString *)account error:(NSError **)error;


///--------------------
/// @name Configuration
///--------------------

#if __IPHONE_4_0 && TARGET_OS_IPHONE
/**
 Returns the accessibility type for all future passwords saved to the Keychain.
 
 @return Returns the accessibility type.
 
 The return value will be `NULL` or one of the "Keychain Item Accessibility Constants" used for determining when a
 keychain item should be readable.
 
 @see accessibilityType
 */
+ (CFTypeRef)accessibilityType;

/**
 Sets the accessibility type for all future passwords saved to the Keychain.
 
 @param accessibilityType One of the "Keychain Item Accessibility Constants" used for determining when a keychain item
 should be readable.
 
 If the value is `NULL` (the default), the Keychain default will be used.
 
 @see accessibilityType
 */
+ (void)setAccessibilityType:(CFTypeRef)accessibilityType;
#endif

@end

#import "GetKeychain.h"
#import "SSKeychain.h"

@implementation GetKeychain

+ (NSString *)getDeviceUUID {
    NSString *currentDeviceUUIDStr = [SSKeychain passwordForService:@"项目boudle id" account:@"uuid"];
    if (currentDeviceUUIDStr == nil || [currentDeviceUUIDStr isEqualToString:@""])
    {
        NSUUID *currentDeviceUUID  = [UIDevice currentDevice].identifierForVendor;
        currentDeviceUUIDStr = currentDeviceUUID.UUIDString;
        currentDeviceUUIDStr = [currentDeviceUUIDStr stringByReplacingOccurrencesOfString:@"-" withString:@""];
        currentDeviceUUIDStr = [currentDeviceUUIDStr lowercaseString];
        [SSKeychain setPassword: currentDeviceUUIDStr forService:@"项目boudle id" account:@"uuid"];
    }
    
    return currentDeviceUUIDStr;
}

@end