diff options
Diffstat (limited to 'includes/isc-dhcp/dst.h')
| -rw-r--r-- | includes/isc-dhcp/dst.h | 142 |
1 files changed, 142 insertions, 0 deletions
diff --git a/includes/isc-dhcp/dst.h b/includes/isc-dhcp/dst.h new file mode 100644 index 0000000..65c54d2 --- /dev/null +++ b/includes/isc-dhcp/dst.h @@ -0,0 +1,142 @@ +#ifndef DST_H +#define DST_H + +#ifndef HAS_DST_KEY +typedef struct dst_key { + char *dk_key_name; /* name of the key */ + int dk_key_size; /* this is the size of the key in bits */ + int dk_proto; /* what protocols this key can be used for */ + int dk_alg; /* algorithm number from key record */ + unsigned dk_flags; /* and the flags of the public key */ + unsigned dk_id; /* identifier of the key */ +} DST_KEY; +#endif /* HAS_DST_KEY */ + +/* + * DST Crypto API defintions + */ +void dst_init(void); +int dst_check_algorithm(const int); + +int dst_sign_data(const int mode, /* specifies INIT/UPDATE/FINAL/ALL */ + DST_KEY *in_key, /* the key to use */ + void **context, /* pointer to state structure */ + const u_char *data, /* data to be signed */ + const unsigned len, /* length of input data */ + u_char *signature, /* buffer to write signature to */ + const unsigned sig_len); /* size of output buffer */ + +int dst_verify_data(const int mode, /* specifies INIT/UPDATE/FINAL/ALL */ + DST_KEY *in_key, /* the key to use */ + void **context, /* pointer to state structure */ + const u_char *data, /* data to be verified */ + const unsigned len, /* length of input data */ + const u_char *signature,/* buffer containing signature */ + const unsigned sig_len); /* length of signature */ + + +DST_KEY *dst_read_key(const char *in_name, /* name of key */ + const unsigned in_id, /* key tag identifier */ + const int in_alg, /* key algorithm */ + const int key_type); /* Private/PublicKey wanted*/ + +int dst_write_key(const DST_KEY *key, /* key to write out */ + const int key_type); /* Public/Private */ + +DST_KEY *dst_dnskey_to_key(const char *in_name, /* KEY record name */ + const u_char *key, /* KEY RDATA */ + const unsigned len); /* size of input buffer*/ + + +int dst_key_to_dnskey(const DST_KEY *key, /* key to translate */ + u_char *out_storage, /* output buffer */ + const unsigned out_len); /* size of out_storage*/ + + +DST_KEY *dst_buffer_to_key(const char *key_name, /* name of the key */ + const int alg, /* algorithm */ + const unsigned flags, /* dns flags */ + const int protocol, /* dns protocol */ + const u_char *key_buf, /* key in dns wire fmt */ + const unsigned key_len); /* size of key */ + + +int dst_key_to_buffer(DST_KEY *key, u_char *out_buff, unsigned buf_len); + +DST_KEY *dst_generate_key(const char *name, /* name of new key */ + const int bits, /* size of new key */ + const int exp, /* alg dependent parameter*/ + const unsigned flags, /* key DNS flags */ + const int protocol, /* key DNS protocol */ + const int alg); /* key algorithm to generate */ + +DST_KEY *dst_free_key(DST_KEY *f_key); +int dst_compare_keys(const DST_KEY *key1, const DST_KEY *key2); + +int dst_sig_size(DST_KEY *key); + +int dst_random(const int mode, unsigned wanted, u_char *outran); + + +/* support for dns key tags/ids */ +u_int16_t dst_s_dns_key_id(const u_char *dns_key_rdata, + const unsigned rdata_len); +u_int16_t dst_s_id_calc(const u_char *key_data, const unsigned key_len); + +/* Used by callers as well as by the library. */ +#define RAW_KEY_SIZE 8192 /* large enough to store any key */ + +/* DST_API control flags */ +/* These are used used in functions dst_sign_data and dst_verify_data */ +#define SIG_MODE_INIT 1 /* initalize digest */ +#define SIG_MODE_UPDATE 2 /* add data to digest */ +#define SIG_MODE_FINAL 4 /* generate/verify signature */ +#define SIG_MODE_ALL (SIG_MODE_INIT|SIG_MODE_UPDATE|SIG_MODE_FINAL) + +/* Flags for dst_read_private_key() */ +#define DST_FORCE_READ 0x1000000 +#define DST_CAN_SIGN 0x010F +#define DST_NO_AUTHEN 0x8000 +#define DST_EXTEND_FLAG 0x1000 +#define DST_STANDARD 0 +#define DST_PRIVATE 0x2000000 +#define DST_PUBLIC 0x4000000 +#define DST_RAND_SEMI 1 +#define DST_RAND_STD 2 +#define DST_RAND_KEY 3 +#define DST_RAND_DSS 4 + + +/* DST algorithm codes */ +#define KEY_RSA 1 +#define KEY_DH 2 +#define KEY_DSA 3 +#define KEY_PRIVATE 254 +#define KEY_EXPAND 255 +#define KEY_HMAC_MD5 157 +#define KEY_HMAC_SHA1 158 +#define UNKNOWN_KEYALG 0 +#define DST_MAX_ALGS KEY_HMAC_SHA1 + +/* DST constants to locations in KEY record changes in new KEY record */ +#define DST_FLAGS_SIZE 2 +#define DST_KEY_PROT 2 +#define DST_KEY_ALG 3 +#define DST_EXT_FLAG 4 +#define DST_KEY_START 4 + +#ifndef SIGN_F_NOKEY +#define SIGN_F_NOKEY 0xC000 +#endif + +/* error codes from dst routines */ +#define SIGN_INIT_FAILURE (-23) +#define SIGN_UPDATE_FAILURE (-24) +#define SIGN_FINAL_FAILURE (-25) +#define VERIFY_INIT_FAILURE (-26) +#define VERIFY_UPDATE_FAILURE (-27) +#define VERIFY_FINAL_FAILURE (-28) +#define MISSING_KEY_OR_SIGNATURE (-30) +#define UNSUPPORTED_KEYALG (-31) + +#endif /* DST_H */ |