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net-snmp 5.7
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00001 /* 00002 * scapi.h 00003 */ 00004 00005 #ifndef _SCAPI_H 00006 #define _SCAPI_H 00007 00008 #ifdef __cplusplus 00009 extern "C" { 00010 #endif 00011 00012 /* 00013 * Authentication/privacy transform bitlengths. 00014 */ 00015 #define SNMP_TRANS_AUTHLEN_HMACMD5 128 00016 #define SNMP_TRANS_AUTHLEN_HMACSHA1 160 00017 00018 #define SNMP_TRANS_AUTHLEN_HMAC96 96 00019 00020 #define SNMP_TRANS_PRIVLEN_1DES 64 00021 #define SNMP_TRANS_PRIVLEN_1DES_IV 64 00022 00023 #define SNMP_TRANS_PRIVLEN_AES 128 00024 #define SNMP_TRANS_PRIVLEN_AES_IV 128 00025 #define SNMP_TRANS_AES_PADSIZE 128 /* backwards compat */ 00026 #define SNMP_TRANS_PRIVLEN_AES128 128 /* backwards compat */ 00027 #define SNMP_TRANS_PRIVLEN_AES128_IV 128 /* backwards compat */ 00028 #define SNMP_TRANS_AES_AES128_PADSIZE 128 /* backwards compat */ 00029 00030 /* 00031 * Prototypes. 00032 */ 00033 int sc_get_properlength(const oid * hashtype, 00034 u_int hashtype_len); 00035 int sc_get_proper_priv_length(const oid * privtype, 00036 u_int privtype_len); 00037 00038 NETSNMP_IMPORT 00039 int sc_init(void); 00040 int sc_shutdown(int majorID, int minorID, void *serverarg, 00041 void *clientarg); 00042 00043 int sc_random(u_char * buf, size_t * buflen); 00044 00045 int sc_generate_keyed_hash(const oid * authtype, 00046 size_t authtypelen, 00047 const u_char * key, u_int keylen, 00048 const u_char * message, u_int msglen, 00049 u_char * MAC, size_t * maclen); 00050 00051 int sc_check_keyed_hash(const oid * authtype, 00052 size_t authtypelen, const u_char * key, 00053 u_int keylen, const u_char * message, 00054 u_int msglen, const u_char * MAC, 00055 u_int maclen); 00056 00057 int sc_encrypt(const oid * privtype, size_t privtypelen, 00058 u_char * key, u_int keylen, 00059 u_char * iv, u_int ivlen, 00060 const u_char * plaintext, u_int ptlen, 00061 u_char * ciphertext, size_t * ctlen); 00062 00063 int sc_decrypt(const oid * privtype, size_t privtypelen, 00064 u_char * key, u_int keylen, 00065 u_char * iv, u_int ivlen, 00066 u_char * ciphertext, u_int ctlen, 00067 u_char * plaintext, size_t * ptlen); 00068 00069 int sc_hash(const oid * hashtype, size_t hashtypelen, 00070 const u_char * buf, size_t buf_len, 00071 u_char * MAC, size_t * MAC_len); 00072 00073 int sc_get_transform_type(oid * hashtype, 00074 u_int hashtype_len, 00075 int (**hash_fn) (const int mode, 00076 void **context, 00077 const u_char * 00078 data, 00079 const int 00080 data_len, 00081 u_char ** 00082 digest, 00083 size_t * 00084 digest_len)); 00085 00086 00087 /* 00088 * All functions devolve to the following block if we can't do cryptography 00089 */ 00090 #define _SCAPI_NOT_CONFIGURED \ 00091 { \ 00092 snmp_log(LOG_ERR, "Encryption support not enabled.\n"); \ 00093 DEBUGMSGTL(("scapi", "SCAPI not configured")); \ 00094 return SNMPERR_SC_NOT_CONFIGURED; \ 00095 } 00096 00097 /* 00098 * define a transform type if we're using the internal md5 support 00099 */ 00100 #ifdef NETSNMP_USE_INTERNAL_MD5 00101 #define INTERNAL_MD5 1 00102 #endif 00103 00104 #ifdef __cplusplus 00105 } 00106 #endif 00107 #endif /* _SCAPI_H */
1.7.4