diff options
Diffstat (limited to 'runtime/librsgt.h')
| -rw-r--r-- | runtime/librsgt.h | 88 |
1 files changed, 88 insertions, 0 deletions
diff --git a/runtime/librsgt.h b/runtime/librsgt.h index cb1829e9..4ce0be30 100644 --- a/runtime/librsgt.h +++ b/runtime/librsgt.h @@ -70,6 +70,8 @@ struct block_sig_s { uint8_t hashID; uint8_t sigID; /* what type of *signature*? */ uint8_t *iv; + // TODO: think about the situation where the last hash is + // different from the current one (e.g. config change!) imprint_t lastHash; uint64_t recCount; struct { @@ -80,6 +82,87 @@ struct block_sig_s { } sig; }; +/* error states */ +#define RSGTE_IO 1 /* any kind of io error, including EOF */ +#define RSGTE_FMT 2 /* data fromat error */ +#define RSGTE_INVLTYP 3 /* invalid TLV type record (unexcpected at this point) */ +#define RSGTE_OOM 4 /* ran out of memory */ +#define RSGTE_LEN 5 /* error related to length records */ + + +static inline uint16_t +hashOutputLengthOctets(uint8_t hashID) +{ + switch(hashID) { + case GT_HASHALG_SHA1: /* paper: SHA1 */ + return 20; + case GT_HASHALG_RIPEMD160: /* paper: RIPEMD-160 */ + return 20; + case GT_HASHALG_SHA224: /* paper: SHA2-224 */ + return 28; + case GT_HASHALG_SHA256: /* paper: SHA2-256 */ + return 32; + case GT_HASHALG_SHA384: /* paper: SHA2-384 */ + return 48; + case GT_HASHALG_SHA512: /* paper: SHA2-512 */ + return 64; + default:return 32; + } +} + +static inline uint8_t +hashIdentifier(uint8_t hashID) +{ + switch(hashID) { + case GT_HASHALG_SHA1: /* paper: SHA1 */ + return 0x00; + case GT_HASHALG_RIPEMD160: /* paper: RIPEMD-160 */ + return 0x02; + case GT_HASHALG_SHA224: /* paper: SHA2-224 */ + return 0x03; + case GT_HASHALG_SHA256: /* paper: SHA2-256 */ + return 0x01; + case GT_HASHALG_SHA384: /* paper: SHA2-384 */ + return 0x04; + case GT_HASHALG_SHA512: /* paper: SHA2-512 */ + return 0x05; + default:return 0xff; + } +} +static inline char * +hashAlgName(uint8_t hashID) +{ + switch(hashID) { + case GT_HASHALG_SHA1: + return "SHA1"; + case GT_HASHALG_RIPEMD160: + return "RIPEMD-160"; + case GT_HASHALG_SHA224: + return "SHA2-224"; + case GT_HASHALG_SHA256: + return "SHA2-256"; + case GT_HASHALG_SHA384: + return "SHA2-384"; + case GT_HASHALG_SHA512: + return "SHA2-512"; + default:return "[unknown]"; + } +} +static inline char * +sigTypeName(uint8_t sigID) +{ + switch(sigID) { + case SIGID_RFC3161: + return "RFC3161"; + default:return "[unknown]"; + } +} +static inline uint16_t +getIVLen(block_sig_t *bs) +{ + return hashOutputLengthOctets(bs->hashID); +} + void rsgtInit(char *usragent); void rsgtExit(void); gtctx rsgtCtxNew(unsigned char *logfn, enum GTHashAlgorithm hashAlg); @@ -88,4 +171,9 @@ void sigblkInit(gtctx ctx); void sigblkAddRecord(gtctx ctx, const unsigned char *rec, const size_t len); void sigblkFinish(gtctx ctx); void rsgtCtxSetLogfileName(gtctx ctx, char *logfilename); +/* reader functions */ +int rsgt_tlvrdHeader(FILE *fp, unsigned char *hdr); +int rsgt_tlvrd(FILE *fp, uint16_t *tlvtype, uint16_t *tlvlen, void *obj); +void rsgt_tlvprint(FILE *fp, uint16_t tlvtype, void *obj, uint8_t verbose); + #endif /* #ifndef INCLUDED_LIBRSGT_H */ |