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107 lines
4.0 KiB
C
107 lines
4.0 KiB
C
/*
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* scapi.h
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*/
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#ifndef _SCAPI_H
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#define _SCAPI_H
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#ifdef __cplusplus
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extern "C" {
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#endif
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/*
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* Authentication/privacy transform bitlengths.
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*/
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#define SNMP_TRANS_AUTHLEN_HMACMD5 128
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#define SNMP_TRANS_AUTHLEN_HMACSHA1 160
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#define SNMP_TRANS_AUTHLEN_HMAC96 96
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#define SNMP_TRANS_PRIVLEN_1DES 64
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#define SNMP_TRANS_PRIVLEN_1DES_IV 64
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#define SNMP_TRANS_PRIVLEN_AES 128
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#define SNMP_TRANS_PRIVLEN_AES_IV 128
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#define SNMP_TRANS_AES_PADSIZE 128 /* backwards compat */
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#define SNMP_TRANS_PRIVLEN_AES128 128 /* backwards compat */
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#define SNMP_TRANS_PRIVLEN_AES128_IV 128 /* backwards compat */
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#define SNMP_TRANS_AES_AES128_PADSIZE 128 /* backwards compat */
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/*
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* Prototypes.
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*/
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int sc_get_properlength(const oid * hashtype,
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u_int hashtype_len);
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int sc_get_proper_priv_length(const oid * privtype,
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u_int privtype_len);
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int sc_init(void);
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int sc_shutdown(int majorID, int minorID, void *serverarg,
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void *clientarg);
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int sc_random(u_char * buf, size_t * buflen);
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int sc_generate_keyed_hash(const oid * authtype,
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size_t authtypelen,
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u_char * key, u_int keylen,
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u_char * message, u_int msglen,
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u_char * MAC, size_t * maclen);
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int sc_check_keyed_hash(const oid * authtype,
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size_t authtypelen, u_char * key,
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u_int keylen, u_char * message,
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u_int msglen, u_char * MAC,
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u_int maclen);
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int sc_encrypt(const oid * privtype, size_t privtypelen,
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u_char * key, u_int keylen,
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u_char * iv, u_int ivlen,
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u_char * plaintext, u_int ptlen,
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u_char * ciphertext, size_t * ctlen);
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int sc_decrypt(const oid * privtype, size_t privtypelen,
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u_char * key, u_int keylen,
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u_char * iv, u_int ivlen,
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u_char * ciphertext, u_int ctlen,
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u_char * plaintext, size_t * ptlen);
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int sc_hash(const oid * hashtype, size_t hashtypelen,
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u_char * buf, size_t buf_len,
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u_char * MAC, size_t * MAC_len);
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int sc_get_transform_type(oid * hashtype,
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u_int hashtype_len,
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int (**hash_fn) (const int mode,
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void **context,
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const u_char *
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data,
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const int
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data_len,
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u_char **
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digest,
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size_t *
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digest_len));
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/*
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* All functions devolve to the following block if we can't do cryptography
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*/
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#define _SCAPI_NOT_CONFIGURED \
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{ \
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snmp_log(LOG_ERR, "Encryption support not enabled.\n"); \
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DEBUGMSGTL(("scapi", "SCAPI not configured")); \
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return SNMPERR_SC_NOT_CONFIGURED; \
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}
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/*
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* define a transform type if we're using the internal md5 support
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*/
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#ifdef USE_INTERNAL_MD5
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#define INTERNAL_MD5 1
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#endif
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#ifdef __cplusplus
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}
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#endif
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#endif /* _SCAPI_H */
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