1 /* $NetBSD: ntp_crypto.h,v 1.1.1.1 2009/12/13 16:54:51 kardel Exp $ */ 2 3 /* 4 * ntp_crypto.h - definitions for cryptographic operations 5 */ 6 #ifndef NTP_CRYPTO_H 7 #define NTP_CRYPTO_H 8 9 /* 10 * Configuration codes (also needed for parser without OPENSSL) 11 */ 12 #define CRYPTO_CONF_NONE 0 /* nothing doing */ 13 #define CRYPTO_CONF_PRIV 1 /* host keys file name */ 14 #define CRYPTO_CONF_SIGN 2 /* signature keys file name */ 15 #define CRYPTO_CONF_CERT 3 /* certificate file name */ 16 #define CRYPTO_CONF_RAND 4 /* random seed file name */ 17 #define CRYPTO_CONF_IFFPAR 5 /* IFF parameters file name */ 18 #define CRYPTO_CONF_GQPAR 6 /* GQ parameters file name */ 19 #define CRYPTO_CONF_MVPAR 7 /* MV parameters file name */ 20 #define CRYPTO_CONF_PW 8 /* private key password */ 21 #define CRYPTO_CONF_IDENT 9 /* specify identity scheme */ 22 #define CRYPTO_CONF_NID 10 /* specify digest name */ 23 24 #ifdef OPENSSL 25 #include "openssl/evp.h" 26 27 /* 28 * The following bits are set by the CRYPTO_ASSOC message from 29 * the server and are not modified by the client. 30 */ 31 #define CRYPTO_FLAG_ENAB 0x0001 /* crypto enable */ 32 #define CRYPTO_FLAG_TAI 0x0002 /* leapseconds table */ 33 34 #define CRYPTO_FLAG_PRIV 0x0010 /* PC identity scheme */ 35 #define CRYPTO_FLAG_IFF 0x0020 /* IFF identity scheme */ 36 #define CRYPTO_FLAG_GQ 0x0040 /* GQ identity scheme */ 37 #define CRYPTO_FLAG_MV 0x0080 /* MV identity scheme */ 38 #define CRYPTO_FLAG_MASK 0x00f0 /* identity scheme mask */ 39 40 /* 41 * The following bits are used by the client during the protocol 42 * exchange. 43 */ 44 #define CRYPTO_FLAG_CERT 0x0100 /* public key verified */ 45 #define CRYPTO_FLAG_VRFY 0x0200 /* identity verified */ 46 #define CRYPTO_FLAG_PROV 0x0400 /* signature verified */ 47 #define CRYPTO_FLAG_COOK 0x0800 /* cookie verifed */ 48 #define CRYPTO_FLAG_AUTO 0x1000 /* autokey verified */ 49 #define CRYPTO_FLAG_SIGN 0x2000 /* certificate signed */ 50 #define CRYPTO_FLAG_LEAP 0x4000 /* leapsecond values verified */ 51 #define CRYPTO_FLAG_ALL 0x7f00 /* all mask */ 52 53 /* 54 * Flags used for certificate management 55 */ 56 #define CERT_TRUST 0x01 /* certificate is trusted */ 57 #define CERT_SIGN 0x02 /* certificate is signed */ 58 #define CERT_VALID 0x04 /* certificate is valid */ 59 #define CERT_PRIV 0x08 /* certificate is private */ 60 #define CERT_ERROR 0x80 /* certificate has errors */ 61 62 /* 63 * Extension field definitions 64 */ 65 #define CRYPTO_MAXLEN 1024 /* max extension field length */ 66 #define CRYPTO_VN 2 /* current protocol version number */ 67 #define CRYPTO_CMD(x) (((CRYPTO_VN << 8) | (x)) << 16) 68 #define CRYPTO_NULL CRYPTO_CMD(0) /* no operation */ 69 #define CRYPTO_ASSOC CRYPTO_CMD(1) /* association */ 70 #define CRYPTO_CERT CRYPTO_CMD(2) /* certificate */ 71 #define CRYPTO_COOK CRYPTO_CMD(3) /* cookie value */ 72 #define CRYPTO_AUTO CRYPTO_CMD(4) /* autokey values */ 73 #define CRYPTO_LEAP CRYPTO_CMD(5) /* leapsecond values */ 74 #define CRYPTO_SIGN CRYPTO_CMD(6) /* certificate sign */ 75 #define CRYPTO_IFF CRYPTO_CMD(7) /* IFF identity scheme */ 76 #define CRYPTO_GQ CRYPTO_CMD(8) /* GQ identity scheme */ 77 #define CRYPTO_MV CRYPTO_CMD(9) /* MV identity scheme */ 78 #define CRYPTO_RESP 0x80000000 /* response */ 79 #define CRYPTO_ERROR 0x40000000 /* error */ 80 81 /* 82 * Autokey event codes 83 */ 84 #define XEVNT_CMD(x) (CRPT_EVENT | (x)) 85 #define XEVNT_OK XEVNT_CMD(0) /* success */ 86 #define XEVNT_LEN XEVNT_CMD(1) /* bad field format or length */ 87 #define XEVNT_TSP XEVNT_CMD(2) /* bad timestamp */ 88 #define XEVNT_FSP XEVNT_CMD(3) /* bad filestamp */ 89 #define XEVNT_PUB XEVNT_CMD(4) /* bad or missing public key */ 90 #define XEVNT_MD XEVNT_CMD(5) /* unsupported digest type */ 91 #define XEVNT_KEY XEVNT_CMD(6) /* unsupported identity type */ 92 #define XEVNT_SGL XEVNT_CMD(7) /* bad signature length */ 93 #define XEVNT_SIG XEVNT_CMD(8) /* signature not verified */ 94 #define XEVNT_VFY XEVNT_CMD(9) /* certificate not verified */ 95 #define XEVNT_PER XEVNT_CMD(10) /* host certificate expired */ 96 #define XEVNT_CKY XEVNT_CMD(11) /* bad or missing cookie */ 97 #define XEVNT_DAT XEVNT_CMD(12) /* bad or missing leapseconds */ 98 #define XEVNT_CRT XEVNT_CMD(13) /* bad or missing certificate */ 99 #define XEVNT_ID XEVNT_CMD(14) /* bad or missing group key */ 100 #define XEVNT_ERR XEVNT_CMD(15) /* protocol error */ 101 102 /* 103 * Miscellaneous crypto stuff 104 */ 105 #define NTP_MAXSESSION 100 /* maximum session key list entries */ 106 #define NTP_MAXEXTEN 2048 /* maximum extension field size */ 107 #define NTP_AUTOMAX 12 /* default key list timeout (log2 s) */ 108 #define KEY_REVOKE 17 /* default key revoke timeout (log2 s) */ 109 #define NTP_REFRESH 19 /* default restart timeout (log2 s) */ 110 #define NTP_MAXKEY 65535 /* maximum symmetric key ID */ 111 112 /* 113 * The autokey structure holds the values used to authenticate key IDs. 114 */ 115 struct autokey { /* network byte order */ 116 keyid_t key; /* key ID */ 117 int32 seq; /* key number */ 118 }; 119 120 /* 121 * The value structure holds variable length data such as public 122 * key, agreement parameters, public valule and leapsecond table. 123 * They are in network byte order. 124 */ 125 struct value { /* network byte order */ 126 tstamp_t tstamp; /* timestamp */ 127 tstamp_t fstamp; /* filestamp */ 128 u_int32 vallen; /* value length */ 129 u_char *ptr; /* data pointer (various) */ 130 u_int32 siglen; /* signature length */ 131 u_char *sig; /* signature */ 132 }; 133 134 /* 135 * The packet extension field structures are used to hold values 136 * and signatures in network byte order. 137 */ 138 struct exten { 139 u_int32 opcode; /* opcode */ 140 u_int32 associd; /* association ID */ 141 u_int32 tstamp; /* timestamp */ 142 u_int32 fstamp; /* filestamp */ 143 u_int32 vallen; /* value length */ 144 u_int32 pkt[1]; /* start of value field */ 145 }; 146 147 /* 148 * The certificate info/value structure 149 */ 150 struct cert_info { 151 struct cert_info *link; /* forward link */ 152 u_int flags; /* flags that wave */ 153 EVP_PKEY *pkey; /* generic key */ 154 long version; /* X509 version */ 155 int nid; /* signature/digest ID */ 156 const EVP_MD *digest; /* message digest algorithm */ 157 u_long serial; /* serial number */ 158 tstamp_t first; /* not valid before */ 159 tstamp_t last; /* not valid after */ 160 char *subject; /* subject common name */ 161 char *issuer; /* issuer common name */ 162 BIGNUM *grpkey; /* GQ group key */ 163 struct value cert; /* certificate/value */ 164 }; 165 166 /* 167 * The keys info/value structure 168 */ 169 struct pkey_info { 170 struct pkey_info *link; /* forward link */ 171 EVP_PKEY *pkey; /* generic key */ 172 char *name; /* file name */ 173 tstamp_t fstamp; /* filestamp */ 174 }; 175 176 /* 177 * Cryptographic values 178 */ 179 extern u_int crypto_flags; /* status word */ 180 extern int crypto_nid; /* digest nid */ 181 extern struct value hostval; /* host name/value */ 182 extern struct cert_info *cinfo; /* host certificate information */ 183 extern struct value tai_leap; /* leapseconds table */ 184 #endif /* OPENSSL */ 185 #endif /* NTP_CRYPTO_H */ 186