nsca_common.h

//
// Created by macskas on 12/9/20.
//

#ifndef NSCA_NSCA_COMMON_H
#define NSCA_NSCA_COMMON_H

#include <cinttypes>
#include <algorithm>

#define OK              0
#define ERROR           -1

#define TRUE            1
#define FALSE           0

#define STATE_UNKNOWN   3       /* service state return codes */
#define STATE_CRITICAL  2
#define STATE_WARNING   1
#define STATE_OK        0

#define DEFAULT_SOCKET_TIMEOUT  10      /* timeout after 10 seconds */

#define MAX_INPUT_BUFFER        5120    /* max size of most buffers we use */

#define MAX_HOST_ADDRESS_LENGTH 256     /* max size of a host address */

#define MAX_HOSTNAME_LENGTH     64
#define MAX_DESCRIPTION_LENGTH  128
#define MAX_PLUGINOUTPUT_LENGTH 4096

#define OLD_PLUGINOUTPUT_LENGTH 512
#define OLD_PACKET_LENGTH (( sizeof( data_packet) - ( MAX_PLUGINOUTPUT_LENGTH - OLD_PLUGINOUTPUT_LENGTH)))

#define MAX_PASSWORD_LENGTH     512

#define BLOCK_DELIMITER  "\x17"


/********************* ENCRYPTION TYPES ****************/

#define ENCRYPT_NONE            0       /* no encryption */
#define ENCRYPT_XOR             1       /* not really encrypted, just obfuscated */
#define ENCRYPT_DES             2       /* DES */
#define ENCRYPT_3DES            3       /* 3DES or Triple DES */
#define ENCRYPT_CAST128         4       /* CAST-128 */
#define ENCRYPT_CAST256         5       /* CAST-256 */
#define ENCRYPT_XTEA            6       /* xTEA */
#define ENCRYPT_3WAY            7       /* 3-WAY */
#define ENCRYPT_BLOWFISH        8       /* SKIPJACK */
#define ENCRYPT_TWOFISH         9       /* TWOFISH */
#define ENCRYPT_LOKI97          10      /* LOKI97 */
#define ENCRYPT_RC2             11      /* RC2 */
#define ENCRYPT_ARCFOUR         12      /* RC4 */
#define ENCRYPT_RC6             13      /* RC6 */            /* UNUSED */
#define ENCRYPT_RIJNDAEL128     14      /* RIJNDAEL-128 */
#define ENCRYPT_RIJNDAEL192     15      /* RIJNDAEL-192 */
#define ENCRYPT_RIJNDAEL256     16      /* RIJNDAEL-256 */
#define ENCRYPT_MARS            17      /* MARS */           /* UNUSED */
#define ENCRYPT_PANAMA          18      /* PANAMA */         /* UNUSED */
#define ENCRYPT_WAKE            19      /* WAKE */
#define ENCRYPT_SERPENT         20      /* SERPENT */
#define ENCRYPT_IDEA            21      /* IDEA */           /* UNUSED */
#define ENCRYPT_ENIGMA          22      /* ENIGMA (Unix crypt) */
#define ENCRYPT_GOST            23      /* GOST */
#define ENCRYPT_SAFER64         24      /* SAFER-sk64 */
#define ENCRYPT_SAFER128        25      /* SAFER-sk128 */
#define ENCRYPT_SAFERPLUS       26      /* SAFER+ */

#define TRANSMITTED_IV_SIZE     128     /* size of IV to transmit - must be as big as largest IV needed for any crypto algorithm */

/*************** PACKET STRUCTURE DEFINITIONS **********/

#define NSCA_PACKET_VERSION_3   3               /* packet version identifier */
#define NSCA_PACKET_VERSION_2   2               /* older packet version identifiers */
#define NSCA_PACKET_VERSION_1   1

/* data packet containing service check results */
typedef struct data_packet_struct {
        int16_t   packet_version;
        u_int32_t crc32_value;
        u_int32_t timestamp;
        int16_t   return_code;
        char      host_name[MAX_HOSTNAME_LENGTH];
        char      svc_description[MAX_DESCRIPTION_LENGTH];
        char      plugin_output[MAX_PLUGINOUTPUT_LENGTH];
        } data_packet;

/* initialization packet containing IV and timestamp */
typedef struct init_packet_struct{
        char      iv[TRANSMITTED_IV_SIZE];
        u_int32_t timestamp;
        }init_packet;



#endif //NSCA_NSCA_COMMON_H