mirror of
https://gitlab.torproject.org/tpo/core/tor.git
synced 2024-11-11 13:43:47 +01:00
d692c5fd03
This commit makes tor add the DoS cell extension to the ESTABLISH_INTRO cell if the defense is enabled on the service side with a torrc option. Furthermore, the cell extension is only added if the introduction point supports it. The protover version HSIntro=5 is looked for. Signed-off-by: David Goulet <dgoulet@torproject.org>
436 lines
22 KiB
C
436 lines
22 KiB
C
/* cell_establish_intro.h -- generated by Trunnel v1.5.3.
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* https://gitweb.torproject.org/trunnel.git
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* You probably shouldn't edit this file.
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*/
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#ifndef TRUNNEL_CELL_ESTABLISH_INTRO_H
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#define TRUNNEL_CELL_ESTABLISH_INTRO_H
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#include <stdint.h>
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#include "trunnel.h"
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struct trn_cell_extension_st;
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#define TRUNNEL_SHA3_256_LEN 32
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#define TRUNNEL_CELL_EXTENSION_TYPE_DOS 1
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#define TRUNNEL_DOS_PARAM_TYPE_INTRO2_RATE_PER_SEC 1
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#define TRUNNEL_DOS_PARAM_TYPE_INTRO2_BURST_PER_SEC 2
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#if !defined(TRUNNEL_OPAQUE) && !defined(TRUNNEL_OPAQUE_TRN_CELL_EXTENSION_DOS_PARAM)
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struct trn_cell_extension_dos_param_st {
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uint8_t type;
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uint64_t value;
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uint8_t trunnel_error_code_;
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};
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#endif
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typedef struct trn_cell_extension_dos_param_st trn_cell_extension_dos_param_t;
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#if !defined(TRUNNEL_OPAQUE) && !defined(TRUNNEL_OPAQUE_TRN_CELL_ESTABLISH_INTRO)
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struct trn_cell_establish_intro_st {
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const uint8_t *start_cell;
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uint8_t auth_key_type;
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uint16_t auth_key_len;
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TRUNNEL_DYNARRAY_HEAD(, uint8_t) auth_key;
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struct trn_cell_extension_st *extensions;
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const uint8_t *end_mac_fields;
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uint8_t handshake_mac[TRUNNEL_SHA3_256_LEN];
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const uint8_t *end_sig_fields;
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uint16_t sig_len;
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TRUNNEL_DYNARRAY_HEAD(, uint8_t) sig;
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uint8_t trunnel_error_code_;
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};
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#endif
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typedef struct trn_cell_establish_intro_st trn_cell_establish_intro_t;
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#if !defined(TRUNNEL_OPAQUE) && !defined(TRUNNEL_OPAQUE_TRN_CELL_EXTENSION_DOS)
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struct trn_cell_extension_dos_st {
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uint8_t n_params;
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TRUNNEL_DYNARRAY_HEAD(, struct trn_cell_extension_dos_param_st *) params;
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uint8_t trunnel_error_code_;
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};
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#endif
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typedef struct trn_cell_extension_dos_st trn_cell_extension_dos_t;
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#if !defined(TRUNNEL_OPAQUE) && !defined(TRUNNEL_OPAQUE_TRN_CELL_INTRO_ESTABLISHED)
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struct trn_cell_intro_established_st {
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struct trn_cell_extension_st *extensions;
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uint8_t trunnel_error_code_;
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};
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#endif
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typedef struct trn_cell_intro_established_st trn_cell_intro_established_t;
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/** Return a newly allocated trn_cell_extension_dos_param with all
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* elements set to zero.
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*/
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trn_cell_extension_dos_param_t *trn_cell_extension_dos_param_new(void);
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/** Release all storage held by the trn_cell_extension_dos_param in
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* 'victim'. (Do nothing if 'victim' is NULL.)
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*/
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void trn_cell_extension_dos_param_free(trn_cell_extension_dos_param_t *victim);
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/** Try to parse a trn_cell_extension_dos_param from the buffer in
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* 'input', using up to 'len_in' bytes from the input buffer. On
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* success, return the number of bytes consumed and set *output to the
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* newly allocated trn_cell_extension_dos_param_t. On failure, return
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* -2 if the input appears truncated, and -1 if the input is otherwise
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* invalid.
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*/
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ssize_t trn_cell_extension_dos_param_parse(trn_cell_extension_dos_param_t **output, const uint8_t *input, const size_t len_in);
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/** Return the number of bytes we expect to need to encode the
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* trn_cell_extension_dos_param in 'obj'. On failure, return a
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* negative value. Note that this value may be an overestimate, and
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* can even be an underestimate for certain unencodeable objects.
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*/
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ssize_t trn_cell_extension_dos_param_encoded_len(const trn_cell_extension_dos_param_t *obj);
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/** Try to encode the trn_cell_extension_dos_param from 'input' into
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* the buffer at 'output', using up to 'avail' bytes of the output
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* buffer. On success, return the number of bytes used. On failure,
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* return -2 if the buffer was not long enough, and -1 if the input
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* was invalid.
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*/
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ssize_t trn_cell_extension_dos_param_encode(uint8_t *output, size_t avail, const trn_cell_extension_dos_param_t *input);
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/** Check whether the internal state of the
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* trn_cell_extension_dos_param in 'obj' is consistent. Return NULL if
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* it is, and a short message if it is not.
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*/
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const char *trn_cell_extension_dos_param_check(const trn_cell_extension_dos_param_t *obj);
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/** Clear any errors that were set on the object 'obj' by its setter
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* functions. Return true iff errors were cleared.
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*/
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int trn_cell_extension_dos_param_clear_errors(trn_cell_extension_dos_param_t *obj);
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/** Return the value of the type field of the
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* trn_cell_extension_dos_param_t in 'inp'
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*/
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uint8_t trn_cell_extension_dos_param_get_type(const trn_cell_extension_dos_param_t *inp);
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/** Set the value of the type field of the
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* trn_cell_extension_dos_param_t in 'inp' to 'val'. Return 0 on
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* success; return -1 and set the error code on 'inp' on failure.
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*/
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int trn_cell_extension_dos_param_set_type(trn_cell_extension_dos_param_t *inp, uint8_t val);
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/** Return the value of the value field of the
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* trn_cell_extension_dos_param_t in 'inp'
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*/
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uint64_t trn_cell_extension_dos_param_get_value(const trn_cell_extension_dos_param_t *inp);
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/** Set the value of the value field of the
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* trn_cell_extension_dos_param_t in 'inp' to 'val'. Return 0 on
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* success; return -1 and set the error code on 'inp' on failure.
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*/
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int trn_cell_extension_dos_param_set_value(trn_cell_extension_dos_param_t *inp, uint64_t val);
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/** Return a newly allocated trn_cell_establish_intro with all
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* elements set to zero.
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*/
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trn_cell_establish_intro_t *trn_cell_establish_intro_new(void);
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/** Release all storage held by the trn_cell_establish_intro in
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* 'victim'. (Do nothing if 'victim' is NULL.)
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*/
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void trn_cell_establish_intro_free(trn_cell_establish_intro_t *victim);
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/** Try to parse a trn_cell_establish_intro from the buffer in
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* 'input', using up to 'len_in' bytes from the input buffer. On
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* success, return the number of bytes consumed and set *output to the
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* newly allocated trn_cell_establish_intro_t. On failure, return -2
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* if the input appears truncated, and -1 if the input is otherwise
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* invalid.
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*/
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ssize_t trn_cell_establish_intro_parse(trn_cell_establish_intro_t **output, const uint8_t *input, const size_t len_in);
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/** Return the number of bytes we expect to need to encode the
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* trn_cell_establish_intro in 'obj'. On failure, return a negative
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* value. Note that this value may be an overestimate, and can even be
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* an underestimate for certain unencodeable objects.
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*/
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ssize_t trn_cell_establish_intro_encoded_len(const trn_cell_establish_intro_t *obj);
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/** Try to encode the trn_cell_establish_intro from 'input' into the
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* buffer at 'output', using up to 'avail' bytes of the output buffer.
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* On success, return the number of bytes used. On failure, return -2
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* if the buffer was not long enough, and -1 if the input was invalid.
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*/
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ssize_t trn_cell_establish_intro_encode(uint8_t *output, size_t avail, const trn_cell_establish_intro_t *input);
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/** Check whether the internal state of the trn_cell_establish_intro
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* in 'obj' is consistent. Return NULL if it is, and a short message
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* if it is not.
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*/
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const char *trn_cell_establish_intro_check(const trn_cell_establish_intro_t *obj);
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/** Clear any errors that were set on the object 'obj' by its setter
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* functions. Return true iff errors were cleared.
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*/
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int trn_cell_establish_intro_clear_errors(trn_cell_establish_intro_t *obj);
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/** Return the position for start_cell when we parsed this object
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*/
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const uint8_t * trn_cell_establish_intro_get_start_cell(const trn_cell_establish_intro_t *inp);
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/** Return the value of the auth_key_type field of the
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* trn_cell_establish_intro_t in 'inp'
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*/
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uint8_t trn_cell_establish_intro_get_auth_key_type(const trn_cell_establish_intro_t *inp);
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/** Set the value of the auth_key_type field of the
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* trn_cell_establish_intro_t in 'inp' to 'val'. Return 0 on success;
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* return -1 and set the error code on 'inp' on failure.
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*/
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int trn_cell_establish_intro_set_auth_key_type(trn_cell_establish_intro_t *inp, uint8_t val);
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/** Return the value of the auth_key_len field of the
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* trn_cell_establish_intro_t in 'inp'
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*/
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uint16_t trn_cell_establish_intro_get_auth_key_len(const trn_cell_establish_intro_t *inp);
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/** Set the value of the auth_key_len field of the
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* trn_cell_establish_intro_t in 'inp' to 'val'. Return 0 on success;
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* return -1 and set the error code on 'inp' on failure.
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*/
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int trn_cell_establish_intro_set_auth_key_len(trn_cell_establish_intro_t *inp, uint16_t val);
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/** Return the length of the dynamic array holding the auth_key field
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* of the trn_cell_establish_intro_t in 'inp'.
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*/
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size_t trn_cell_establish_intro_getlen_auth_key(const trn_cell_establish_intro_t *inp);
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/** Return the element at position 'idx' of the dynamic array field
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* auth_key of the trn_cell_establish_intro_t in 'inp'.
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*/
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uint8_t trn_cell_establish_intro_get_auth_key(trn_cell_establish_intro_t *inp, size_t idx);
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/** As trn_cell_establish_intro_get_auth_key, but take and return a
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* const pointer
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*/
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uint8_t trn_cell_establish_intro_getconst_auth_key(const trn_cell_establish_intro_t *inp, size_t idx);
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/** Change the element at position 'idx' of the dynamic array field
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* auth_key of the trn_cell_establish_intro_t in 'inp', so that it
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* will hold the value 'elt'.
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*/
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int trn_cell_establish_intro_set_auth_key(trn_cell_establish_intro_t *inp, size_t idx, uint8_t elt);
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/** Append a new element 'elt' to the dynamic array field auth_key of
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* the trn_cell_establish_intro_t in 'inp'.
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*/
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int trn_cell_establish_intro_add_auth_key(trn_cell_establish_intro_t *inp, uint8_t elt);
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/** Return a pointer to the variable-length array field auth_key of
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* 'inp'.
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*/
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uint8_t * trn_cell_establish_intro_getarray_auth_key(trn_cell_establish_intro_t *inp);
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/** As trn_cell_establish_intro_get_auth_key, but take and return a
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* const pointer
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*/
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const uint8_t * trn_cell_establish_intro_getconstarray_auth_key(const trn_cell_establish_intro_t *inp);
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/** Change the length of the variable-length array field auth_key of
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* 'inp' to 'newlen'.Fill extra elements with 0. Return 0 on success;
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* return -1 and set the error code on 'inp' on failure.
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*/
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int trn_cell_establish_intro_setlen_auth_key(trn_cell_establish_intro_t *inp, size_t newlen);
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/** Return the value of the extensions field of the
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* trn_cell_establish_intro_t in 'inp'
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*/
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struct trn_cell_extension_st * trn_cell_establish_intro_get_extensions(trn_cell_establish_intro_t *inp);
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/** As trn_cell_establish_intro_get_extensions, but take and return a
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* const pointer
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*/
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const struct trn_cell_extension_st * trn_cell_establish_intro_getconst_extensions(const trn_cell_establish_intro_t *inp);
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/** Set the value of the extensions field of the
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* trn_cell_establish_intro_t in 'inp' to 'val'. Free the old value if
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* any. Steals the referenceto 'val'.Return 0 on success; return -1
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* and set the error code on 'inp' on failure.
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*/
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int trn_cell_establish_intro_set_extensions(trn_cell_establish_intro_t *inp, struct trn_cell_extension_st *val);
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/** As trn_cell_establish_intro_set_extensions, but does not free the
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* previous value.
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*/
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int trn_cell_establish_intro_set0_extensions(trn_cell_establish_intro_t *inp, struct trn_cell_extension_st *val);
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/** Return the position for end_mac_fields when we parsed this object
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*/
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const uint8_t * trn_cell_establish_intro_get_end_mac_fields(const trn_cell_establish_intro_t *inp);
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/** Return the (constant) length of the array holding the
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* handshake_mac field of the trn_cell_establish_intro_t in 'inp'.
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*/
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size_t trn_cell_establish_intro_getlen_handshake_mac(const trn_cell_establish_intro_t *inp);
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/** Return the element at position 'idx' of the fixed array field
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* handshake_mac of the trn_cell_establish_intro_t in 'inp'.
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*/
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uint8_t trn_cell_establish_intro_get_handshake_mac(trn_cell_establish_intro_t *inp, size_t idx);
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/** As trn_cell_establish_intro_get_handshake_mac, but take and return
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* a const pointer
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*/
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uint8_t trn_cell_establish_intro_getconst_handshake_mac(const trn_cell_establish_intro_t *inp, size_t idx);
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/** Change the element at position 'idx' of the fixed array field
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* handshake_mac of the trn_cell_establish_intro_t in 'inp', so that
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* it will hold the value 'elt'.
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*/
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int trn_cell_establish_intro_set_handshake_mac(trn_cell_establish_intro_t *inp, size_t idx, uint8_t elt);
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/** Return a pointer to the TRUNNEL_SHA3_256_LEN-element array field
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* handshake_mac of 'inp'.
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*/
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uint8_t * trn_cell_establish_intro_getarray_handshake_mac(trn_cell_establish_intro_t *inp);
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/** As trn_cell_establish_intro_get_handshake_mac, but take and return
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* a const pointer
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*/
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const uint8_t * trn_cell_establish_intro_getconstarray_handshake_mac(const trn_cell_establish_intro_t *inp);
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/** Return the position for end_sig_fields when we parsed this object
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*/
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const uint8_t * trn_cell_establish_intro_get_end_sig_fields(const trn_cell_establish_intro_t *inp);
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/** Return the value of the sig_len field of the
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* trn_cell_establish_intro_t in 'inp'
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*/
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uint16_t trn_cell_establish_intro_get_sig_len(const trn_cell_establish_intro_t *inp);
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/** Set the value of the sig_len field of the
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* trn_cell_establish_intro_t in 'inp' to 'val'. Return 0 on success;
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* return -1 and set the error code on 'inp' on failure.
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*/
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int trn_cell_establish_intro_set_sig_len(trn_cell_establish_intro_t *inp, uint16_t val);
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/** Return the length of the dynamic array holding the sig field of
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* the trn_cell_establish_intro_t in 'inp'.
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*/
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size_t trn_cell_establish_intro_getlen_sig(const trn_cell_establish_intro_t *inp);
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/** Return the element at position 'idx' of the dynamic array field
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* sig of the trn_cell_establish_intro_t in 'inp'.
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*/
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uint8_t trn_cell_establish_intro_get_sig(trn_cell_establish_intro_t *inp, size_t idx);
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/** As trn_cell_establish_intro_get_sig, but take and return a const
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* pointer
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*/
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uint8_t trn_cell_establish_intro_getconst_sig(const trn_cell_establish_intro_t *inp, size_t idx);
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/** Change the element at position 'idx' of the dynamic array field
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* sig of the trn_cell_establish_intro_t in 'inp', so that it will
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* hold the value 'elt'.
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*/
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int trn_cell_establish_intro_set_sig(trn_cell_establish_intro_t *inp, size_t idx, uint8_t elt);
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/** Append a new element 'elt' to the dynamic array field sig of the
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* trn_cell_establish_intro_t in 'inp'.
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*/
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int trn_cell_establish_intro_add_sig(trn_cell_establish_intro_t *inp, uint8_t elt);
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/** Return a pointer to the variable-length array field sig of 'inp'.
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*/
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uint8_t * trn_cell_establish_intro_getarray_sig(trn_cell_establish_intro_t *inp);
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/** As trn_cell_establish_intro_get_sig, but take and return a const
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* pointer
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*/
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const uint8_t * trn_cell_establish_intro_getconstarray_sig(const trn_cell_establish_intro_t *inp);
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/** Change the length of the variable-length array field sig of 'inp'
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* to 'newlen'.Fill extra elements with 0. Return 0 on success; return
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* -1 and set the error code on 'inp' on failure.
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*/
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int trn_cell_establish_intro_setlen_sig(trn_cell_establish_intro_t *inp, size_t newlen);
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/** Return a newly allocated trn_cell_extension_dos with all elements
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* set to zero.
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*/
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trn_cell_extension_dos_t *trn_cell_extension_dos_new(void);
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/** Release all storage held by the trn_cell_extension_dos in
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* 'victim'. (Do nothing if 'victim' is NULL.)
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*/
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void trn_cell_extension_dos_free(trn_cell_extension_dos_t *victim);
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/** Try to parse a trn_cell_extension_dos from the buffer in 'input',
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* using up to 'len_in' bytes from the input buffer. On success,
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* return the number of bytes consumed and set *output to the newly
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* allocated trn_cell_extension_dos_t. On failure, return -2 if the
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* input appears truncated, and -1 if the input is otherwise invalid.
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*/
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ssize_t trn_cell_extension_dos_parse(trn_cell_extension_dos_t **output, const uint8_t *input, const size_t len_in);
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/** Return the number of bytes we expect to need to encode the
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* trn_cell_extension_dos in 'obj'. On failure, return a negative
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* value. Note that this value may be an overestimate, and can even be
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* an underestimate for certain unencodeable objects.
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*/
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ssize_t trn_cell_extension_dos_encoded_len(const trn_cell_extension_dos_t *obj);
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/** Try to encode the trn_cell_extension_dos from 'input' into the
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* buffer at 'output', using up to 'avail' bytes of the output buffer.
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* On success, return the number of bytes used. On failure, return -2
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* if the buffer was not long enough, and -1 if the input was invalid.
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*/
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ssize_t trn_cell_extension_dos_encode(uint8_t *output, size_t avail, const trn_cell_extension_dos_t *input);
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/** Check whether the internal state of the trn_cell_extension_dos in
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* 'obj' is consistent. Return NULL if it is, and a short message if
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* it is not.
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*/
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const char *trn_cell_extension_dos_check(const trn_cell_extension_dos_t *obj);
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/** Clear any errors that were set on the object 'obj' by its setter
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* functions. Return true iff errors were cleared.
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*/
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int trn_cell_extension_dos_clear_errors(trn_cell_extension_dos_t *obj);
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/** Return the value of the n_params field of the
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* trn_cell_extension_dos_t in 'inp'
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*/
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uint8_t trn_cell_extension_dos_get_n_params(const trn_cell_extension_dos_t *inp);
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/** Set the value of the n_params field of the
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* trn_cell_extension_dos_t in 'inp' to 'val'. Return 0 on success;
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* return -1 and set the error code on 'inp' on failure.
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*/
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int trn_cell_extension_dos_set_n_params(trn_cell_extension_dos_t *inp, uint8_t val);
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/** Return the length of the dynamic array holding the params field of
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* the trn_cell_extension_dos_t in 'inp'.
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*/
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size_t trn_cell_extension_dos_getlen_params(const trn_cell_extension_dos_t *inp);
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/** Return the element at position 'idx' of the dynamic array field
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* params of the trn_cell_extension_dos_t in 'inp'.
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*/
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struct trn_cell_extension_dos_param_st * trn_cell_extension_dos_get_params(trn_cell_extension_dos_t *inp, size_t idx);
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/** As trn_cell_extension_dos_get_params, but take and return a const
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* pointer
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*/
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const struct trn_cell_extension_dos_param_st * trn_cell_extension_dos_getconst_params(const trn_cell_extension_dos_t *inp, size_t idx);
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/** Change the element at position 'idx' of the dynamic array field
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* params of the trn_cell_extension_dos_t in 'inp', so that it will
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* hold the value 'elt'. Free the previous value, if any.
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*/
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int trn_cell_extension_dos_set_params(trn_cell_extension_dos_t *inp, size_t idx, struct trn_cell_extension_dos_param_st * elt);
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/** As trn_cell_extension_dos_set_params, but does not free the
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* previous value.
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*/
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int trn_cell_extension_dos_set0_params(trn_cell_extension_dos_t *inp, size_t idx, struct trn_cell_extension_dos_param_st * elt);
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/** Append a new element 'elt' to the dynamic array field params of
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* the trn_cell_extension_dos_t in 'inp'.
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*/
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int trn_cell_extension_dos_add_params(trn_cell_extension_dos_t *inp, struct trn_cell_extension_dos_param_st * elt);
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/** Return a pointer to the variable-length array field params of
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|
* 'inp'.
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|
*/
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struct trn_cell_extension_dos_param_st * * trn_cell_extension_dos_getarray_params(trn_cell_extension_dos_t *inp);
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/** As trn_cell_extension_dos_get_params, but take and return a const
|
|
* pointer
|
|
*/
|
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const struct trn_cell_extension_dos_param_st * const * trn_cell_extension_dos_getconstarray_params(const trn_cell_extension_dos_t *inp);
|
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/** Change the length of the variable-length array field params of
|
|
* 'inp' to 'newlen'.Fill extra elements with NULL; free removed
|
|
* elements. Return 0 on success; return -1 and set the error code on
|
|
* 'inp' on failure.
|
|
*/
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int trn_cell_extension_dos_setlen_params(trn_cell_extension_dos_t *inp, size_t newlen);
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|
/** Return a newly allocated trn_cell_intro_established with all
|
|
* elements set to zero.
|
|
*/
|
|
trn_cell_intro_established_t *trn_cell_intro_established_new(void);
|
|
/** Release all storage held by the trn_cell_intro_established in
|
|
* 'victim'. (Do nothing if 'victim' is NULL.)
|
|
*/
|
|
void trn_cell_intro_established_free(trn_cell_intro_established_t *victim);
|
|
/** Try to parse a trn_cell_intro_established 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_intro_established_t. On failure, return -2
|
|
* if the input appears truncated, and -1 if the input is otherwise
|
|
* invalid.
|
|
*/
|
|
ssize_t trn_cell_intro_established_parse(trn_cell_intro_established_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_intro_established 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_intro_established_encoded_len(const trn_cell_intro_established_t *obj);
|
|
/** Try to encode the trn_cell_intro_established 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_intro_established_encode(uint8_t *output, size_t avail, const trn_cell_intro_established_t *input);
|
|
/** Check whether the internal state of the trn_cell_intro_established
|
|
* in 'obj' is consistent. Return NULL if it is, and a short message
|
|
* if it is not.
|
|
*/
|
|
const char *trn_cell_intro_established_check(const trn_cell_intro_established_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_intro_established_clear_errors(trn_cell_intro_established_t *obj);
|
|
/** Return the value of the extensions field of the
|
|
* trn_cell_intro_established_t in 'inp'
|
|
*/
|
|
struct trn_cell_extension_st * trn_cell_intro_established_get_extensions(trn_cell_intro_established_t *inp);
|
|
/** As trn_cell_intro_established_get_extensions, but take and return
|
|
* a const pointer
|
|
*/
|
|
const struct trn_cell_extension_st * trn_cell_intro_established_getconst_extensions(const trn_cell_intro_established_t *inp);
|
|
/** Set the value of the extensions field of the
|
|
* trn_cell_intro_established_t in 'inp' to 'val'. Free the old value
|
|
* if any. Steals the referenceto 'val'.Return 0 on success; return -1
|
|
* and set the error code on 'inp' on failure.
|
|
*/
|
|
int trn_cell_intro_established_set_extensions(trn_cell_intro_established_t *inp, struct trn_cell_extension_st *val);
|
|
/** As trn_cell_intro_established_set_extensions, but does not free
|
|
* the previous value.
|
|
*/
|
|
int trn_cell_intro_established_set0_extensions(trn_cell_intro_established_t *inp, struct trn_cell_extension_st *val);
|
|
|
|
|
|
#endif
|