1 #include "incs.h" 2 3 #include <openssl/hmac.h> 4 5 /* 6 * Message-Authenticator attribute 7 */ 8 9 void test23(void) 10 { 11 RADIUS_PACKET *packet; 12 RADIUS_PACKET *response; 13 HMAC_CTX *ctx; 14 15 uint8_t packetdata[] = { 16 RADIUS_CODE_ACCESS_REQUEST, 0x7f, 0, 48, 17 0, 0, 0, 0, 0, 0, 0, 0, 0, 0, 0, 0, 0, 0, 0, 0, /* auth */ 18 RADIUS_TYPE_MESSAGE_AUTHENTICATOR, 18, 0, 0, 0, 0, 0, 0, 0, 0, 0, 0, 0, 0, 0, 0, 0, 0, 19 10, 10, 'h', 'o', 'g', 'e', 'f', 'u', 'g', 'a', 20 }; 21 uint8_t responsedata[] = { 22 RADIUS_CODE_ACCESS_ACCEPT, 0x7f, 0, 49, 23 0, 0, 0, 0, 0, 0, 0, 0, 0, 0, 0, 0, 0, 0, 0, 0, /* auth */ 24 RADIUS_TYPE_MESSAGE_AUTHENTICATOR, 18, 0, 0, 0, 0, 0, 0, 0, 0, 0, 0, 0, 0, 0, 0, 0, 0, 25 10, 11, 'f', 'o', 'o', 'b', 'a', 'r', 'b', 'a', 'z', 26 }; 27 28 packet = radius_new_request_packet(RADIUS_CODE_ACCESS_REQUEST); 29 radius_set_id(packet, 0x7f); 30 radius_put_string_attr(packet, 10, "hogefuga"); 31 radius_put_message_authenticator(packet, "sharedsecret"); 32 33 radius_get_authenticator(packet, packetdata + 4); 34 HMAC(EVP_md5(), "sharedsecret", 12, packetdata, sizeof(packetdata), packetdata + 22, NULL); 35 36 CHECK(radius_get_length(packet) == sizeof(packetdata)); 37 CHECK(memcmp(radius_get_data(packet), packetdata, sizeof(packetdata)) == 0); 38 CHECK(radius_check_message_authenticator(packet, "sharedsecret") == 0); 39 40 response = radius_new_response_packet(RADIUS_CODE_ACCESS_ACCEPT, packet); 41 radius_put_string_attr(response, 10, "foobarbaz"); 42 radius_put_message_authenticator(response, "sharedsecret"); 43 44 radius_get_authenticator(response, responsedata + 4); 45 ctx = HMAC_CTX_new(); 46 HMAC_Init_ex(ctx, "sharedsecret", 12, EVP_md5(), NULL); 47 HMAC_Update(ctx, responsedata, 4); 48 HMAC_Update(ctx, packetdata + 4, 16); 49 HMAC_Update(ctx, responsedata + 20, sizeof(responsedata) - 20); 50 HMAC_Final(ctx, responsedata + 22, NULL); 51 HMAC_CTX_free(ctx); 52 53 CHECK(radius_get_length(response) == sizeof(responsedata)); 54 CHECK(memcmp(radius_get_data(response), responsedata, sizeof(responsedata)) == 0); 55 CHECK(radius_check_message_authenticator(response, "sharedsecret") == 0); 56 57 radius_set_raw_attr(packet, 10, "hogefuge", 8); 58 CHECK(radius_check_message_authenticator(packet, "sharedsecret") != 0); 59 radius_set_raw_attr(response, 10, "zapzapzap", 9); 60 CHECK(radius_check_message_authenticator(response, "sharedsecret") != 0); 61 62 radius_set_raw_attr(packet, 10, "hogefuga", 8); 63 radius_set_id(packet, 0xff); 64 radius_set_message_authenticator(packet, "sharedsecret"); 65 packetdata[1] = 0xff; 66 memset(packetdata + 22, 0, 16); 67 HMAC(EVP_md5(), "sharedsecret", 12, packetdata, sizeof(packetdata), packetdata + 22, NULL); 68 CHECK(memcmp(radius_get_data(packet), packetdata, sizeof(packetdata)) == 0); 69 } 70 71 ADD_TEST(test23) 72