182498Sroberto/* 282498Sroberto * ntp_crypto.h - definitions for cryptographic operations 382498Sroberto */ 4280849Scy#ifndef NTP_CRYPTO_H 5280849Scy#define NTP_CRYPTO_H 6280849Scy 7280849Scy/* 8280849Scy * Configuration codes (also needed for parser without AUTOKEY) 9280849Scy */ 10280849Scy#define CRYPTO_CONF_NONE 0 /* nothing doing */ 11280849Scy#define CRYPTO_CONF_PRIV 1 /* host name */ 12280849Scy#define CRYPTO_CONF_IDENT 2 /* group name */ 13280849Scy#define CRYPTO_CONF_CERT 3 /* certificate file name */ 14280849Scy#define CRYPTO_CONF_RAND 4 /* random seed file name */ 15280849Scy#define CRYPTO_CONF_IFFPAR 5 /* IFF parameters file name */ 16280849Scy#define CRYPTO_CONF_GQPAR 6 /* GQ parameters file name */ 17280849Scy#define CRYPTO_CONF_MVPAR 7 /* MV parameters file name */ 18280849Scy#define CRYPTO_CONF_PW 8 /* private key password */ 19280849Scy#define CRYPTO_CONF_NID 9 /* specify digest name */ 20280849Scy 21280849Scy#ifdef AUTOKEY 22280849Scy#ifndef OPENSSL 23280849Scy#error AUTOKEY should be defined only if OPENSSL is. 24280849Scyinvalidsyntax: AUTOKEY should be defined only if OPENSSL is. 25280849Scy#endif 26280849Scy 27316068Sdelphij#include "openssl/bn.h" 28132451Sroberto#include "openssl/evp.h" 29280849Scy#include "ntp_calendar.h" /* for fields in the cert_info structure */ 30280849Scy 31280849Scy 32132451Sroberto/* 33132451Sroberto * The following bits are set by the CRYPTO_ASSOC message from 34132451Sroberto * the server and are not modified by the client. 35132451Sroberto */ 36132451Sroberto#define CRYPTO_FLAG_ENAB 0x0001 /* crypto enable */ 37132451Sroberto#define CRYPTO_FLAG_TAI 0x0002 /* leapseconds table */ 3882498Sroberto 39132451Sroberto#define CRYPTO_FLAG_PRIV 0x0010 /* PC identity scheme */ 40132451Sroberto#define CRYPTO_FLAG_IFF 0x0020 /* IFF identity scheme */ 41132451Sroberto#define CRYPTO_FLAG_GQ 0x0040 /* GQ identity scheme */ 42132451Sroberto#define CRYPTO_FLAG_MV 0x0080 /* MV identity scheme */ 43132451Sroberto#define CRYPTO_FLAG_MASK 0x00f0 /* identity scheme mask */ 44132451Sroberto 45132451Sroberto/* 46132451Sroberto * The following bits are used by the client during the protocol 47132451Sroberto * exchange. 48132451Sroberto */ 49280849Scy#define CRYPTO_FLAG_CERT 0x0100 /* public key verified */ 50132451Sroberto#define CRYPTO_FLAG_VRFY 0x0200 /* identity verified */ 51132451Sroberto#define CRYPTO_FLAG_PROV 0x0400 /* signature verified */ 52280849Scy#define CRYPTO_FLAG_COOK 0x0800 /* cookie verifed */ 53132451Sroberto#define CRYPTO_FLAG_AUTO 0x1000 /* autokey verified */ 54132451Sroberto#define CRYPTO_FLAG_SIGN 0x2000 /* certificate signed */ 55280849Scy#define CRYPTO_FLAG_LEAP 0x4000 /* leapsecond values verified */ 56280849Scy#define CRYPTO_FLAG_ALL 0x7f00 /* all mask */ 5782498Sroberto 5882498Sroberto/* 59132451Sroberto * Flags used for certificate management 6082498Sroberto */ 61182007Sroberto#define CERT_TRUST 0x01 /* certificate is trusted */ 62182007Sroberto#define CERT_SIGN 0x02 /* certificate is signed */ 63182007Sroberto#define CERT_VALID 0x04 /* certificate is valid */ 64182007Sroberto#define CERT_PRIV 0x08 /* certificate is private */ 65132451Sroberto#define CERT_ERROR 0x80 /* certificate has errors */ 6682498Sroberto 6782498Sroberto/* 6882498Sroberto * Extension field definitions 6982498Sroberto */ 70132451Sroberto#define CRYPTO_MAXLEN 1024 /* max extension field length */ 71132451Sroberto#define CRYPTO_VN 2 /* current protocol version number */ 72132451Sroberto#define CRYPTO_CMD(x) (((CRYPTO_VN << 8) | (x)) << 16) 73132451Sroberto#define CRYPTO_NULL CRYPTO_CMD(0) /* no operation */ 74132451Sroberto#define CRYPTO_ASSOC CRYPTO_CMD(1) /* association */ 75132451Sroberto#define CRYPTO_CERT CRYPTO_CMD(2) /* certificate */ 76132451Sroberto#define CRYPTO_COOK CRYPTO_CMD(3) /* cookie value */ 77132451Sroberto#define CRYPTO_AUTO CRYPTO_CMD(4) /* autokey values */ 78280849Scy#define CRYPTO_LEAP CRYPTO_CMD(5) /* leapsecond values */ 79132451Sroberto#define CRYPTO_SIGN CRYPTO_CMD(6) /* certificate sign */ 80132451Sroberto#define CRYPTO_IFF CRYPTO_CMD(7) /* IFF identity scheme */ 81132451Sroberto#define CRYPTO_GQ CRYPTO_CMD(8) /* GQ identity scheme */ 82132451Sroberto#define CRYPTO_MV CRYPTO_CMD(9) /* MV identity scheme */ 83132451Sroberto#define CRYPTO_RESP 0x80000000 /* response */ 84132451Sroberto#define CRYPTO_ERROR 0x40000000 /* error */ 8582498Sroberto 86132451Sroberto/* 87132451Sroberto * Autokey event codes 88132451Sroberto */ 89132451Sroberto#define XEVNT_CMD(x) (CRPT_EVENT | (x)) 90132451Sroberto#define XEVNT_OK XEVNT_CMD(0) /* success */ 91132451Sroberto#define XEVNT_LEN XEVNT_CMD(1) /* bad field format or length */ 92132451Sroberto#define XEVNT_TSP XEVNT_CMD(2) /* bad timestamp */ 93132451Sroberto#define XEVNT_FSP XEVNT_CMD(3) /* bad filestamp */ 94182007Sroberto#define XEVNT_PUB XEVNT_CMD(4) /* bad or missing public key */ 95132451Sroberto#define XEVNT_MD XEVNT_CMD(5) /* unsupported digest type */ 96132451Sroberto#define XEVNT_KEY XEVNT_CMD(6) /* unsupported identity type */ 97132451Sroberto#define XEVNT_SGL XEVNT_CMD(7) /* bad signature length */ 98132451Sroberto#define XEVNT_SIG XEVNT_CMD(8) /* signature not verified */ 99132451Sroberto#define XEVNT_VFY XEVNT_CMD(9) /* certificate not verified */ 100182007Sroberto#define XEVNT_PER XEVNT_CMD(10) /* host certificate expired */ 101132451Sroberto#define XEVNT_CKY XEVNT_CMD(11) /* bad or missing cookie */ 102280849Scy#define XEVNT_DAT XEVNT_CMD(12) /* bad or missing leapseconds */ 103132451Sroberto#define XEVNT_CRT XEVNT_CMD(13) /* bad or missing certificate */ 104182007Sroberto#define XEVNT_ID XEVNT_CMD(14) /* bad or missing group key */ 105182007Sroberto#define XEVNT_ERR XEVNT_CMD(15) /* protocol error */ 10682498Sroberto 10782498Sroberto/* 108132451Sroberto * Miscellaneous crypto stuff 10982498Sroberto */ 110132451Sroberto#define NTP_MAXSESSION 100 /* maximum session key list entries */ 111280849Scy#define NTP_MAXEXTEN 2048 /* maximum extension field size */ 112280849Scy#define NTP_AUTOMAX 12 /* default key list timeout (log2 s) */ 113280849Scy#define KEY_REVOKE 17 /* default key revoke timeout (log2 s) */ 114280849Scy#define NTP_REFRESH 19 /* default restart timeout (log2 s) */ 115280849Scy#define NTP_MAXKEY 65535 /* maximum symmetric key ID */ 11682498Sroberto 11782498Sroberto/* 118132451Sroberto * The autokey structure holds the values used to authenticate key IDs. 119132451Sroberto */ 120132451Srobertostruct autokey { /* network byte order */ 121132451Sroberto keyid_t key; /* key ID */ 122132451Sroberto int32 seq; /* key number */ 123132451Sroberto}; 124132451Sroberto 125132451Sroberto/* 126132451Sroberto * The value structure holds variable length data such as public 127132451Sroberto * key, agreement parameters, public valule and leapsecond table. 128132451Sroberto * They are in network byte order. 129132451Sroberto */ 130132451Srobertostruct value { /* network byte order */ 131132451Sroberto tstamp_t tstamp; /* timestamp */ 132132451Sroberto tstamp_t fstamp; /* filestamp */ 133132451Sroberto u_int32 vallen; /* value length */ 134280849Scy void *ptr; /* data pointer (various) */ 135132451Sroberto u_int32 siglen; /* signature length */ 136132451Sroberto u_char *sig; /* signature */ 137132451Sroberto}; 138132451Sroberto 139132451Sroberto/* 140132451Sroberto * The packet extension field structures are used to hold values 141132451Sroberto * and signatures in network byte order. 142132451Sroberto */ 143132451Srobertostruct exten { 144132451Sroberto u_int32 opcode; /* opcode */ 145132451Sroberto u_int32 associd; /* association ID */ 146132451Sroberto u_int32 tstamp; /* timestamp */ 147132451Sroberto u_int32 fstamp; /* filestamp */ 148132451Sroberto u_int32 vallen; /* value length */ 149132451Sroberto u_int32 pkt[1]; /* start of value field */ 150132451Sroberto}; 151132451Sroberto 152280849Scy 153132451Sroberto/* 154132451Sroberto * The certificate info/value structure 155132451Sroberto */ 156132451Srobertostruct cert_info { 157132451Sroberto struct cert_info *link; /* forward link */ 158132451Sroberto u_int flags; /* flags that wave */ 159132451Sroberto EVP_PKEY *pkey; /* generic key */ 160132451Sroberto long version; /* X509 version */ 161132451Sroberto int nid; /* signature/digest ID */ 162132451Sroberto const EVP_MD *digest; /* message digest algorithm */ 163132451Sroberto u_long serial; /* serial number */ 164280849Scy struct calendar first; /* not valid before */ 165280849Scy struct calendar last; /* not valid after */ 166132451Sroberto char *subject; /* subject common name */ 167132451Sroberto char *issuer; /* issuer common name */ 168280849Scy BIGNUM *grpkey; /* GQ group key */ 169132451Sroberto struct value cert; /* certificate/value */ 170132451Sroberto}; 171132451Sroberto 172132451Sroberto/* 173280849Scy * The keys info/value structure 174280849Scy */ 175280849Scystruct pkey_info { 176280849Scy struct pkey_info *link; /* forward link */ 177280849Scy EVP_PKEY *pkey; /* generic key */ 178280849Scy char *name; /* file name */ 179280849Scy tstamp_t fstamp; /* filestamp */ 180280849Scy}; 181280849Scy 182280849Scy/* 18382498Sroberto * Cryptographic values 18482498Sroberto */ 18582498Srobertoextern u_int crypto_flags; /* status word */ 186280849Scyextern int crypto_nid; /* digest nid */ 187132451Srobertoextern struct value hostval; /* host name/value */ 188132451Srobertoextern struct cert_info *cinfo; /* host certificate information */ 18982498Srobertoextern struct value tai_leap; /* leapseconds table */ 190280849Scy#endif /* AUTOKEY */ 191280849Scy#endif /* NTP_CRYPTO_H */ 192