1 files changed, 260 insertions, 0 deletions
diff --git a/src/trunnel/ed25519_cert.h b/src/trunnel/ed25519_cert.h
index 75a82d8aff..1893957209 100644
--- a/src/trunnel/ed25519_cert.h
+++ b/src/trunnel/ed25519_cert.h
@@ -10,6 +10,10 @@
 
 #define CERTEXT_SIGNED_WITH_KEY 4
 #define CERTEXT_FLAG_AFFECTS_VALIDATION 1
+#define LS_IPV4 0
+#define LS_IPV6 1
+#define LS_LEGACY_ID 2
+#define LS_ED25519_ID 3
 #if !defined(TRUNNEL_OPAQUE) && !defined(TRUNNEL_OPAQUE_ED25519_CERT_EXTENSION)
 struct ed25519_cert_extension_st {
   uint16_t ext_length;
@@ -21,6 +25,21 @@ struct ed25519_cert_extension_st {
 };
 #endif
 typedef struct ed25519_cert_extension_st ed25519_cert_extension_t;
+#if !defined(TRUNNEL_OPAQUE) && !defined(TRUNNEL_OPAQUE_LINK_SPECIFIER)
+struct link_specifier_st {
+  uint8_t ls_type;
+  uint8_t ls_len;
+  uint32_t un_ipv4_addr;
+  uint16_t un_ipv4_port;
+  uint8_t un_ipv6_addr[16];
+  uint16_t un_ipv6_port;
+  uint8_t un_legacy_id[20];
+  uint8_t un_ed25519_id[32];
+  TRUNNEL_DYNARRAY_HEAD(, uint8_t) un_unrecognized;
+  uint8_t trunnel_error_code_;
+};
+#endif
+typedef struct link_specifier_st link_specifier_t;
 #if !defined(TRUNNEL_OPAQUE) && !defined(TRUNNEL_OPAQUE_ED25519_CERT)
 struct ed25519_cert_st {
   uint8_t version;
@@ -35,6 +54,14 @@ struct ed25519_cert_st {
 };
 #endif
 typedef struct ed25519_cert_st ed25519_cert_t;
+#if !defined(TRUNNEL_OPAQUE) && !defined(TRUNNEL_OPAQUE_LINK_SPECIFIER_LIST)
+struct link_specifier_list_st {
+  uint8_t n_spec;
+  TRUNNEL_DYNARRAY_HEAD(, struct link_specifier_st *) spec;
+  uint8_t trunnel_error_code_;
+};
+#endif
+typedef struct link_specifier_list_st link_specifier_list_t;
 /** Return a newly allocated ed25519_cert_extension with all elements
  * set to zero.
  */
@@ -141,6 +168,164 @@ uint8_t * ed25519_cert_extension_getarray_un_unparsed(ed25519_cert_extension_t *
  * success; return -1 and set the error code on 'inp' on failure.
  */
 int ed25519_cert_extension_setlen_un_unparsed(ed25519_cert_extension_t *inp, size_t newlen);
+/** Return a newly allocated link_specifier with all elements set to
+ * zero.
+ */
+link_specifier_t *link_specifier_new(void);
+/** Release all storage held by the link_specifier in 'victim'. (Do
+ * nothing if 'victim' is NULL.)
+ */
+void link_specifier_free(link_specifier_t *victim);
+/** Try to parse a link_specifier 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
+ * link_specifier_t. On failure, return -2 if the input appears
+ * truncated, and -1 if the input is otherwise invalid.
+ */
+ssize_t link_specifier_parse(link_specifier_t **output, const uint8_t *input, const size_t len_in);
+/** Return the number of bytes we expect to need to encode the
+ * link_specifier 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 link_specifier_encoded_len(const link_specifier_t *obj);
+/** Try to encode the link_specifier 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 link_specifier_encode(uint8_t *output, size_t avail, const link_specifier_t *input);
+/** Check whether the internal state of the link_specifier in 'obj' is
+ * consistent. Return NULL if it is, and a short message if it is not.
+ */
+const char *link_specifier_check(const link_specifier_t *obj);
+/** Clear any errors that were set on the object 'obj' by its setter
+ * functions. Return true iff errors were cleared.
+ */
+int link_specifier_clear_errors(link_specifier_t *obj);
+/** Return the value of the ls_type field of the link_specifier_t in
+ * 'inp'
+ */
+uint8_t link_specifier_get_ls_type(link_specifier_t *inp);
+/** Set the value of the ls_type field of the link_specifier_t in
+ * 'inp' to 'val'. Return 0 on success; return -1 and set the error
+ * code on 'inp' on failure.
+ */
+int link_specifier_set_ls_type(link_specifier_t *inp, uint8_t val);
+/** Return the value of the ls_len field of the link_specifier_t in
+ * 'inp'
+ */
+uint8_t link_specifier_get_ls_len(link_specifier_t *inp);
+/** Set the value of the ls_len field of the link_specifier_t in 'inp'
+ * to 'val'. Return 0 on success; return -1 and set the error code on
+ * 'inp' on failure.
+ */
+int link_specifier_set_ls_len(link_specifier_t *inp, uint8_t val);
+/** Return the value of the un_ipv4_addr field of the link_specifier_t
+ * in 'inp'
+ */
+uint32_t link_specifier_get_un_ipv4_addr(link_specifier_t *inp);
+/** Set the value of the un_ipv4_addr field of the link_specifier_t in
+ * 'inp' to 'val'. Return 0 on success; return -1 and set the error
+ * code on 'inp' on failure.
+ */
+int link_specifier_set_un_ipv4_addr(link_specifier_t *inp, uint32_t val);
+/** Return the value of the un_ipv4_port field of the link_specifier_t
+ * in 'inp'
+ */
+uint16_t link_specifier_get_un_ipv4_port(link_specifier_t *inp);
+/** Set the value of the un_ipv4_port field of the link_specifier_t in
+ * 'inp' to 'val'. Return 0 on success; return -1 and set the error
+ * code on 'inp' on failure.
+ */
+int link_specifier_set_un_ipv4_port(link_specifier_t *inp, uint16_t val);
+/** Return the (constant) length of the array holding the un_ipv6_addr
+ * field of the link_specifier_t in 'inp'.
+ */
+size_t link_specifier_getlen_un_ipv6_addr(const link_specifier_t *inp);
+/** Return the element at position 'idx' of the fixed array field
+ * un_ipv6_addr of the link_specifier_t in 'inp'.
+ */
+uint8_t link_specifier_get_un_ipv6_addr(const link_specifier_t *inp, size_t idx);
+/** Change the element at position 'idx' of the fixed array field
+ * un_ipv6_addr of the link_specifier_t in 'inp', so that it will hold
+ * the value 'elt'.
+ */
+int link_specifier_set_un_ipv6_addr(link_specifier_t *inp, size_t idx, uint8_t elt);
+/** Return a pointer to the 16-element array field un_ipv6_addr of
+ * 'inp'.
+ */
+uint8_t * link_specifier_getarray_un_ipv6_addr(link_specifier_t *inp);
+/** Return the value of the un_ipv6_port field of the link_specifier_t
+ * in 'inp'
+ */
+uint16_t link_specifier_get_un_ipv6_port(link_specifier_t *inp);
+/** Set the value of the un_ipv6_port field of the link_specifier_t in
+ * 'inp' to 'val'. Return 0 on success; return -1 and set the error
+ * code on 'inp' on failure.
+ */
+int link_specifier_set_un_ipv6_port(link_specifier_t *inp, uint16_t val);
+/** Return the (constant) length of the array holding the un_legacy_id
+ * field of the link_specifier_t in 'inp'.
+ */
+size_t link_specifier_getlen_un_legacy_id(const link_specifier_t *inp);
+/** Return the element at position 'idx' of the fixed array field
+ * un_legacy_id of the link_specifier_t in 'inp'.
+ */
+uint8_t link_specifier_get_un_legacy_id(const link_specifier_t *inp, size_t idx);
+/** Change the element at position 'idx' of the fixed array field
+ * un_legacy_id of the link_specifier_t in 'inp', so that it will hold
+ * the value 'elt'.
+ */
+int link_specifier_set_un_legacy_id(link_specifier_t *inp, size_t idx, uint8_t elt);
+/** Return a pointer to the 20-element array field un_legacy_id of
+ * 'inp'.
+ */
+uint8_t * link_specifier_getarray_un_legacy_id(link_specifier_t *inp);
+/** Return the (constant) length of the array holding the
+ * un_ed25519_id field of the link_specifier_t in 'inp'.
+ */
+size_t link_specifier_getlen_un_ed25519_id(const link_specifier_t *inp);
+/** Return the element at position 'idx' of the fixed array field
+ * un_ed25519_id of the link_specifier_t in 'inp'.
+ */
+uint8_t link_specifier_get_un_ed25519_id(const link_specifier_t *inp, size_t idx);
+/** Change the element at position 'idx' of the fixed array field
+ * un_ed25519_id of the link_specifier_t in 'inp', so that it will
+ * hold the value 'elt'.
+ */
+int link_specifier_set_un_ed25519_id(link_specifier_t *inp, size_t idx, uint8_t elt);
+/** Return a pointer to the 32-element array field un_ed25519_id of
+ * 'inp'.
+ */
+uint8_t * link_specifier_getarray_un_ed25519_id(link_specifier_t *inp);
+/** Return the length of the dynamic array holding the un_unrecognized
+ * field of the link_specifier_t in 'inp'.
+ */
+size_t link_specifier_getlen_un_unrecognized(const link_specifier_t *inp);
+/** Return the element at position 'idx' of the dynamic array field
+ * un_unrecognized of the link_specifier_t in 'inp'.
+ */
+uint8_t link_specifier_get_un_unrecognized(link_specifier_t *inp, size_t idx);
+/** Change the element at position 'idx' of the dynamic array field
+ * un_unrecognized of the link_specifier_t in 'inp', so that it will
+ * hold the value 'elt'.
+ */
+int link_specifier_set_un_unrecognized(link_specifier_t *inp, size_t idx, uint8_t elt);
+/** Append a new element 'elt' to the dynamic array field
+ * un_unrecognized of the link_specifier_t in 'inp'.
+ */
+int link_specifier_add_un_unrecognized(link_specifier_t *inp, uint8_t elt);
+/** Return a pointer to the variable-length array field
+ * un_unrecognized of 'inp'.
+ */
+uint8_t * link_specifier_getarray_un_unrecognized(link_specifier_t *inp);
+/** Change the length of the variable-length array field
+ * un_unrecognized of 'inp' to 'newlen'.Fill extra elements with 0.
+ * Return 0 on success; return -1 and set the error code on 'inp' on
+ * failure.
+ */
+int link_specifier_setlen_un_unrecognized(link_specifier_t *inp, size_t newlen);
 /** Return a newly allocated ed25519_cert with all elements set to
  * zero.
  */
@@ -283,6 +468,81 @@ int ed25519_cert_set_signature(ed25519_cert_t *inp, size_t idx, uint8_t elt);
 /** Return a pointer to the 64-element array field signature of 'inp'.
  */
 uint8_t * ed25519_cert_getarray_signature(ed25519_cert_t *inp);
+/** Return a newly allocated link_specifier_list with all elements set
+ * to zero.
+ */
+link_specifier_list_t *link_specifier_list_new(void);
+/** Release all storage held by the link_specifier_list in 'victim'.
+ * (Do nothing if 'victim' is NULL.)
+ */
+void link_specifier_list_free(link_specifier_list_t *victim);
+/** Try to parse a link_specifier_list 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 link_specifier_list_t. On failure, return -2 if the input
+ * appears truncated, and -1 if the input is otherwise invalid.
+ */
+ssize_t link_specifier_list_parse(link_specifier_list_t **output, const uint8_t *input, const size_t len_in);
+/** Return the number of bytes we expect to need to encode the
+ * link_specifier_list 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 link_specifier_list_encoded_len(const link_specifier_list_t *obj);
+/** Try to encode the link_specifier_list 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 link_specifier_list_encode(uint8_t *output, size_t avail, const link_specifier_list_t *input);
+/** Check whether the internal state of the link_specifier_list in
+ * 'obj' is consistent. Return NULL if it is, and a short message if
+ * it is not.
+ */
+const char *link_specifier_list_check(const link_specifier_list_t *obj);
+/** Clear any errors that were set on the object 'obj' by its setter
+ * functions. Return true iff errors were cleared.
+ */
+int link_specifier_list_clear_errors(link_specifier_list_t *obj);
+/** Return the value of the n_spec field of the link_specifier_list_t
+ * in 'inp'
+ */
+uint8_t link_specifier_list_get_n_spec(link_specifier_list_t *inp);
+/** Set the value of the n_spec field of the link_specifier_list_t in
+ * 'inp' to 'val'. Return 0 on success; return -1 and set the error
+ * code on 'inp' on failure.
+ */
+int link_specifier_list_set_n_spec(link_specifier_list_t *inp, uint8_t val);
+/** Return the length of the dynamic array holding the spec field of
+ * the link_specifier_list_t in 'inp'.
+ */
+size_t link_specifier_list_getlen_spec(const link_specifier_list_t *inp);
+/** Return the element at position 'idx' of the dynamic array field
+ * spec of the link_specifier_list_t in 'inp'.
+ */
+struct link_specifier_st * link_specifier_list_get_spec(link_specifier_list_t *inp, size_t idx);
+/** Change the element at position 'idx' of the dynamic array field
+ * spec of the link_specifier_list_t in 'inp', so that it will hold
+ * the value 'elt'. Free the previous value, if any.
+ */
+int link_specifier_list_set_spec(link_specifier_list_t *inp, size_t idx, struct link_specifier_st * elt);
+/** As link_specifier_list_set_spec, but does not free the previous
+ * value.
+ */
+int link_specifier_list_set0_spec(link_specifier_list_t *inp, size_t idx, struct link_specifier_st * elt);
+/** Append a new element 'elt' to the dynamic array field spec of the
+ * link_specifier_list_t in 'inp'.
+ */
+int link_specifier_list_add_spec(link_specifier_list_t *inp, struct link_specifier_st * elt);
+/** Return a pointer to the variable-length array field spec of 'inp'.
+ */
+struct link_specifier_st * * link_specifier_list_getarray_spec(link_specifier_list_t *inp);
+/** Change the length of the variable-length array field spec 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.
+ */
+int link_specifier_list_setlen_spec(link_specifier_list_t *inp, size_t newlen);
 
 
 #endif