diff options
Diffstat (limited to 'src/trunnel/hs/cell_rendezvous.h')
-rw-r--r-- | src/trunnel/hs/cell_rendezvous.h | 69 |
1 files changed, 69 insertions, 0 deletions
diff --git a/src/trunnel/hs/cell_rendezvous.h b/src/trunnel/hs/cell_rendezvous.h index 2387d77f4f..5dcc6539b6 100644 --- a/src/trunnel/hs/cell_rendezvous.h +++ b/src/trunnel/hs/cell_rendezvous.h @@ -9,6 +9,7 @@ #include "trunnel.h" #define TRUNNEL_REND_COOKIE_LEN 20 +#define TRUNNEL_HANDSHAKE_INFO_LEN 64 #if !defined(TRUNNEL_OPAQUE) && !defined(TRUNNEL_OPAQUE_TRN_CELL_RENDEZVOUS1) struct trn_cell_rendezvous1_st { uint8_t rendezvous_cookie[TRUNNEL_REND_COOKIE_LEN]; @@ -17,6 +18,13 @@ struct trn_cell_rendezvous1_st { }; #endif typedef struct trn_cell_rendezvous1_st trn_cell_rendezvous1_t; +#if !defined(TRUNNEL_OPAQUE) && !defined(TRUNNEL_OPAQUE_TRN_CELL_RENDEZVOUS2) +struct trn_cell_rendezvous2_st { + uint8_t handshake_info[TRUNNEL_HANDSHAKE_INFO_LEN]; + uint8_t trunnel_error_code_; +}; +#endif +typedef struct trn_cell_rendezvous2_st trn_cell_rendezvous2_t; /** Return a newly allocated trn_cell_rendezvous1 with all elements * set to zero. */ @@ -113,6 +121,67 @@ const uint8_t * trn_cell_rendezvous1_getconstarray_handshake_info(const trn_cel * failure. */ int trn_cell_rendezvous1_setlen_handshake_info(trn_cell_rendezvous1_t *inp, size_t newlen); +/** Return a newly allocated trn_cell_rendezvous2 with all elements + * set to zero. + */ +trn_cell_rendezvous2_t *trn_cell_rendezvous2_new(void); +/** Release all storage held by the trn_cell_rendezvous2 in 'victim'. + * (Do nothing if 'victim' is NULL.) + */ +void trn_cell_rendezvous2_free(trn_cell_rendezvous2_t *victim); +/** Try to parse a trn_cell_rendezvous2 from the buffer in 'input', + * using up to 'len_in' bytes from the input buffer. On success, + * return the number of bytes consumed and set *output to the newly + * allocated trn_cell_rendezvous2_t. On failure, return -2 if the + * input appears truncated, and -1 if the input is otherwise invalid. + */ +ssize_t trn_cell_rendezvous2_parse(trn_cell_rendezvous2_t **output, const uint8_t *input, const size_t len_in); +/** Return the number of bytes we expect to need to encode the + * trn_cell_rendezvous2 in 'obj'. On failure, return a negative value. + * Note that this value may be an overestimate, and can even be an + * underestimate for certain unencodeable objects. + */ +ssize_t trn_cell_rendezvous2_encoded_len(const trn_cell_rendezvous2_t *obj); +/** Try to encode the trn_cell_rendezvous2 from 'input' into the + * buffer at 'output', using up to 'avail' bytes of the output buffer. + * On success, return the number of bytes used. On failure, return -2 + * if the buffer was not long enough, and -1 if the input was invalid. + */ +ssize_t trn_cell_rendezvous2_encode(uint8_t *output, size_t avail, const trn_cell_rendezvous2_t *input); +/** Check whether the internal state of the trn_cell_rendezvous2 in + * 'obj' is consistent. Return NULL if it is, and a short message if + * it is not. + */ +const char *trn_cell_rendezvous2_check(const trn_cell_rendezvous2_t *obj); +/** Clear any errors that were set on the object 'obj' by its setter + * functions. Return true iff errors were cleared. + */ +int trn_cell_rendezvous2_clear_errors(trn_cell_rendezvous2_t *obj); +/** Return the (constant) length of the array holding the + * handshake_info field of the trn_cell_rendezvous2_t in 'inp'. + */ +size_t trn_cell_rendezvous2_getlen_handshake_info(const trn_cell_rendezvous2_t *inp); +/** Return the element at position 'idx' of the fixed array field + * handshake_info of the trn_cell_rendezvous2_t in 'inp'. + */ +uint8_t trn_cell_rendezvous2_get_handshake_info(trn_cell_rendezvous2_t *inp, size_t idx); +/** As trn_cell_rendezvous2_get_handshake_info, but take and return a + * const pointer + */ +uint8_t trn_cell_rendezvous2_getconst_handshake_info(const trn_cell_rendezvous2_t *inp, size_t idx); +/** Change the element at position 'idx' of the fixed array field + * handshake_info of the trn_cell_rendezvous2_t in 'inp', so that it + * will hold the value 'elt'. + */ +int trn_cell_rendezvous2_set_handshake_info(trn_cell_rendezvous2_t *inp, size_t idx, uint8_t elt); +/** Return a pointer to the TRUNNEL_HANDSHAKE_INFO_LEN-element array + * field handshake_info of 'inp'. + */ +uint8_t * trn_cell_rendezvous2_getarray_handshake_info(trn_cell_rendezvous2_t *inp); +/** As trn_cell_rendezvous2_get_handshake_info, but take and return a + * const pointer + */ +const uint8_t * trn_cell_rendezvous2_getconstarray_handshake_info(const trn_cell_rendezvous2_t *inp); #endif |