Annotation of embedaddon/dhcp/includes/isc-dhcp/dst.h, revision 1.1
1.1 ! misho 1: #ifndef DST_H
! 2: #define DST_H
! 3:
! 4: #ifndef HAS_DST_KEY
! 5: typedef struct dst_key {
! 6: char *dk_key_name; /* name of the key */
! 7: int dk_key_size; /* this is the size of the key in bits */
! 8: int dk_proto; /* what protocols this key can be used for */
! 9: int dk_alg; /* algorithm number from key record */
! 10: unsigned dk_flags; /* and the flags of the public key */
! 11: unsigned dk_id; /* identifier of the key */
! 12: } DST_KEY;
! 13: #endif /* HAS_DST_KEY */
! 14:
! 15: /*
! 16: * DST Crypto API defintions
! 17: */
! 18: void dst_init(void);
! 19: int dst_check_algorithm(const int);
! 20:
! 21: int dst_sign_data(const int mode, /* specifies INIT/UPDATE/FINAL/ALL */
! 22: DST_KEY *in_key, /* the key to use */
! 23: void **context, /* pointer to state structure */
! 24: const u_char *data, /* data to be signed */
! 25: const unsigned len, /* length of input data */
! 26: u_char *signature, /* buffer to write signature to */
! 27: const unsigned sig_len); /* size of output buffer */
! 28:
! 29: int dst_verify_data(const int mode, /* specifies INIT/UPDATE/FINAL/ALL */
! 30: DST_KEY *in_key, /* the key to use */
! 31: void **context, /* pointer to state structure */
! 32: const u_char *data, /* data to be verified */
! 33: const unsigned len, /* length of input data */
! 34: const u_char *signature,/* buffer containing signature */
! 35: const unsigned sig_len); /* length of signature */
! 36:
! 37:
! 38: DST_KEY *dst_read_key(const char *in_name, /* name of key */
! 39: const unsigned in_id, /* key tag identifier */
! 40: const int in_alg, /* key algorithm */
! 41: const int key_type); /* Private/PublicKey wanted*/
! 42:
! 43: int dst_write_key(const DST_KEY *key, /* key to write out */
! 44: const int key_type); /* Public/Private */
! 45:
! 46: DST_KEY *dst_dnskey_to_key(const char *in_name, /* KEY record name */
! 47: const u_char *key, /* KEY RDATA */
! 48: const unsigned len); /* size of input buffer*/
! 49:
! 50:
! 51: int dst_key_to_dnskey(const DST_KEY *key, /* key to translate */
! 52: u_char *out_storage, /* output buffer */
! 53: const unsigned out_len); /* size of out_storage*/
! 54:
! 55:
! 56: DST_KEY *dst_buffer_to_key(const char *key_name, /* name of the key */
! 57: const int alg, /* algorithm */
! 58: const unsigned flags, /* dns flags */
! 59: const int protocol, /* dns protocol */
! 60: const u_char *key_buf, /* key in dns wire fmt */
! 61: const unsigned key_len); /* size of key */
! 62:
! 63:
! 64: int dst_key_to_buffer(DST_KEY *key, u_char *out_buff, unsigned buf_len);
! 65:
! 66: DST_KEY *dst_generate_key(const char *name, /* name of new key */
! 67: const int bits, /* size of new key */
! 68: const int exp, /* alg dependent parameter*/
! 69: const unsigned flags, /* key DNS flags */
! 70: const int protocol, /* key DNS protocol */
! 71: const int alg); /* key algorithm to generate */
! 72:
! 73: DST_KEY *dst_free_key(DST_KEY *f_key);
! 74: int dst_compare_keys(const DST_KEY *key1, const DST_KEY *key2);
! 75:
! 76: int dst_sig_size(DST_KEY *key);
! 77:
! 78: int dst_random(const int mode, unsigned wanted, u_char *outran);
! 79:
! 80:
! 81: /* support for dns key tags/ids */
! 82: u_int16_t dst_s_dns_key_id(const u_char *dns_key_rdata,
! 83: const unsigned rdata_len);
! 84: u_int16_t dst_s_id_calc(const u_char *key_data, const unsigned key_len);
! 85:
! 86: /* Used by callers as well as by the library. */
! 87: #define RAW_KEY_SIZE 8192 /* large enough to store any key */
! 88:
! 89: /* DST_API control flags */
! 90: /* These are used used in functions dst_sign_data and dst_verify_data */
! 91: #define SIG_MODE_INIT 1 /* initalize digest */
! 92: #define SIG_MODE_UPDATE 2 /* add data to digest */
! 93: #define SIG_MODE_FINAL 4 /* generate/verify signature */
! 94: #define SIG_MODE_ALL (SIG_MODE_INIT|SIG_MODE_UPDATE|SIG_MODE_FINAL)
! 95:
! 96: /* Flags for dst_read_private_key() */
! 97: #define DST_FORCE_READ 0x1000000
! 98: #define DST_CAN_SIGN 0x010F
! 99: #define DST_NO_AUTHEN 0x8000
! 100: #define DST_EXTEND_FLAG 0x1000
! 101: #define DST_STANDARD 0
! 102: #define DST_PRIVATE 0x2000000
! 103: #define DST_PUBLIC 0x4000000
! 104: #define DST_RAND_SEMI 1
! 105: #define DST_RAND_STD 2
! 106: #define DST_RAND_KEY 3
! 107: #define DST_RAND_DSS 4
! 108:
! 109:
! 110: /* DST algorithm codes */
! 111: #define KEY_RSA 1
! 112: #define KEY_DH 2
! 113: #define KEY_DSA 3
! 114: #define KEY_PRIVATE 254
! 115: #define KEY_EXPAND 255
! 116: #define KEY_HMAC_MD5 157
! 117: #define KEY_HMAC_SHA1 158
! 118: #define UNKNOWN_KEYALG 0
! 119: #define DST_MAX_ALGS KEY_HMAC_SHA1
! 120:
! 121: /* DST constants to locations in KEY record changes in new KEY record */
! 122: #define DST_FLAGS_SIZE 2
! 123: #define DST_KEY_PROT 2
! 124: #define DST_KEY_ALG 3
! 125: #define DST_EXT_FLAG 4
! 126: #define DST_KEY_START 4
! 127:
! 128: #ifndef SIGN_F_NOKEY
! 129: #define SIGN_F_NOKEY 0xC000
! 130: #endif
! 131:
! 132: /* error codes from dst routines */
! 133: #define SIGN_INIT_FAILURE (-23)
! 134: #define SIGN_UPDATE_FAILURE (-24)
! 135: #define SIGN_FINAL_FAILURE (-25)
! 136: #define VERIFY_INIT_FAILURE (-26)
! 137: #define VERIFY_UPDATE_FAILURE (-27)
! 138: #define VERIFY_FINAL_FAILURE (-28)
! 139: #define MISSING_KEY_OR_SIGNATURE (-30)
! 140: #define UNSUPPORTED_KEYALG (-31)
! 141:
! 142: #endif /* DST_H */
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