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@@ -0,0 +1,1345 @@
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+/* cell_introduce1.c -- generated by Trunnel v1.5.
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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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+#include <stdlib.h>
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+#include "trunnel-impl.h"
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+
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+#include "cell_introduce1.h"
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+
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+#define TRUNNEL_SET_ERROR_CODE(obj) \
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+ do { \
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+ (obj)->trunnel_error_code_ = 1; \
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+ } while (0)
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+
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+#if defined(__COVERITY__) || defined(__clang_analyzer__)
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+/* If we're runnning a static analysis tool, we don't want it to complain
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+ * that some of our remaining-bytes checks are dead-code. */
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+int cellintroduce_deadcode_dummy__ = 0;
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+#define OR_DEADCODE_DUMMY || cellintroduce_deadcode_dummy__
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+#else
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+#define OR_DEADCODE_DUMMY
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+#endif
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+
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+#define CHECK_REMAINING(nbytes, label) \
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+ do { \
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+ if (remaining < (nbytes) OR_DEADCODE_DUMMY) { \
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+ goto label; \
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+ } \
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+ } while (0)
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+
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+typedef struct cell_extension_st cell_extension_t;
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+cell_extension_t *cell_extension_new(void);
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+void cell_extension_free(cell_extension_t *victim);
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+ssize_t cell_extension_parse(cell_extension_t **output, const uint8_t *input, const size_t len_in);
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+ssize_t cell_extension_encoded_len(const cell_extension_t *obj);
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+ssize_t cell_extension_encode(uint8_t *output, size_t avail, const cell_extension_t *input);
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+const char *cell_extension_check(const cell_extension_t *obj);
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+int cell_extension_clear_errors(cell_extension_t *obj);
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+typedef struct link_specifier_st link_specifier_t;
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+link_specifier_t *link_specifier_new(void);
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+void link_specifier_free(link_specifier_t *victim);
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+ssize_t link_specifier_parse(link_specifier_t **output, const uint8_t *input, const size_t len_in);
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+ssize_t link_specifier_encoded_len(const link_specifier_t *obj);
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+ssize_t link_specifier_encode(uint8_t *output, size_t avail, const link_specifier_t *input);
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+const char *link_specifier_check(const link_specifier_t *obj);
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+int link_specifier_clear_errors(link_specifier_t *obj);
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+hs_cell_introduce1_t *
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+hs_cell_introduce1_new(void)
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+{
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+ hs_cell_introduce1_t *val = trunnel_calloc(1, sizeof(hs_cell_introduce1_t));
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+ if (NULL == val)
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+ return NULL;
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+ return val;
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+}
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+
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+/** Release all storage held inside 'obj', but do not free 'obj'.
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+ */
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+static void
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+hs_cell_introduce1_clear(hs_cell_introduce1_t *obj)
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+{
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+ (void) obj;
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+ TRUNNEL_DYNARRAY_WIPE(&obj->auth_key);
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+ TRUNNEL_DYNARRAY_CLEAR(&obj->auth_key);
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+ cell_extension_free(obj->extensions);
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+ obj->extensions = NULL;
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+ TRUNNEL_DYNARRAY_WIPE(&obj->encrypted);
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+ TRUNNEL_DYNARRAY_CLEAR(&obj->encrypted);
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+}
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+
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+void
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+hs_cell_introduce1_free(hs_cell_introduce1_t *obj)
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+{
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+ if (obj == NULL)
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+ return;
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+ hs_cell_introduce1_clear(obj);
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+ trunnel_memwipe(obj, sizeof(hs_cell_introduce1_t));
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+ trunnel_free_(obj);
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+}
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+
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+size_t
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+hs_cell_introduce1_getlen_legacy_key_id(const hs_cell_introduce1_t *inp)
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+{
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+ (void)inp; return TRUNNEL_SHA1_LEN;
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+}
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+
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+uint8_t
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+hs_cell_introduce1_get_legacy_key_id(hs_cell_introduce1_t *inp, size_t idx)
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+{
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+ trunnel_assert(idx < TRUNNEL_SHA1_LEN);
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+ return inp->legacy_key_id[idx];
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+}
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+
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+uint8_t
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+hs_cell_introduce1_getconst_legacy_key_id(const hs_cell_introduce1_t *inp, size_t idx)
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+{
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+ return hs_cell_introduce1_get_legacy_key_id((hs_cell_introduce1_t*)inp, idx);
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+}
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+int
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+hs_cell_introduce1_set_legacy_key_id(hs_cell_introduce1_t *inp, size_t idx, uint8_t elt)
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+{
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+ trunnel_assert(idx < TRUNNEL_SHA1_LEN);
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+ inp->legacy_key_id[idx] = elt;
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+ return 0;
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+}
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+
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+uint8_t *
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+hs_cell_introduce1_getarray_legacy_key_id(hs_cell_introduce1_t *inp)
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+{
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+ return inp->legacy_key_id;
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+}
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+const uint8_t *
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+hs_cell_introduce1_getconstarray_legacy_key_id(const hs_cell_introduce1_t *inp)
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+{
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+ return (const uint8_t *)hs_cell_introduce1_getarray_legacy_key_id((hs_cell_introduce1_t*)inp);
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+}
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+uint8_t
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+hs_cell_introduce1_get_auth_key_type(hs_cell_introduce1_t *inp)
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+{
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+ return inp->auth_key_type;
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+}
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+int
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+hs_cell_introduce1_set_auth_key_type(hs_cell_introduce1_t *inp, uint8_t val)
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+{
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+ if (! ((val == 0 || val == 1 || val == 2))) {
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+ TRUNNEL_SET_ERROR_CODE(inp);
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+ return -1;
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+ }
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+ inp->auth_key_type = val;
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+ return 0;
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+}
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+uint16_t
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+hs_cell_introduce1_get_auth_key_len(hs_cell_introduce1_t *inp)
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+{
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+ return inp->auth_key_len;
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+}
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+int
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+hs_cell_introduce1_set_auth_key_len(hs_cell_introduce1_t *inp, uint16_t val)
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+{
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+ inp->auth_key_len = val;
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+ return 0;
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+}
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+size_t
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+hs_cell_introduce1_getlen_auth_key(const hs_cell_introduce1_t *inp)
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+{
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+ return TRUNNEL_DYNARRAY_LEN(&inp->auth_key);
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+}
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+
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+uint8_t
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+hs_cell_introduce1_get_auth_key(hs_cell_introduce1_t *inp, size_t idx)
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+{
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+ return TRUNNEL_DYNARRAY_GET(&inp->auth_key, idx);
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+}
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+
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+uint8_t
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+hs_cell_introduce1_getconst_auth_key(const hs_cell_introduce1_t *inp, size_t idx)
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+{
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+ return hs_cell_introduce1_get_auth_key((hs_cell_introduce1_t*)inp, idx);
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+}
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+int
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+hs_cell_introduce1_set_auth_key(hs_cell_introduce1_t *inp, size_t idx, uint8_t elt)
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+{
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+ TRUNNEL_DYNARRAY_SET(&inp->auth_key, idx, elt);
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+ return 0;
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+}
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+int
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+hs_cell_introduce1_add_auth_key(hs_cell_introduce1_t *inp, uint8_t elt)
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+{
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+#if SIZE_MAX >= UINT16_MAX
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+ if (inp->auth_key.n_ == UINT16_MAX)
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+ goto trunnel_alloc_failed;
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+#endif
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+ TRUNNEL_DYNARRAY_ADD(uint8_t, &inp->auth_key, elt, {});
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+ return 0;
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+ trunnel_alloc_failed:
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+ TRUNNEL_SET_ERROR_CODE(inp);
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+ return -1;
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+}
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+
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+uint8_t *
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+hs_cell_introduce1_getarray_auth_key(hs_cell_introduce1_t *inp)
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+{
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+ return inp->auth_key.elts_;
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+}
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+const uint8_t *
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+hs_cell_introduce1_getconstarray_auth_key(const hs_cell_introduce1_t *inp)
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+{
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+ return (const uint8_t *)hs_cell_introduce1_getarray_auth_key((hs_cell_introduce1_t*)inp);
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+}
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+int
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+hs_cell_introduce1_setlen_auth_key(hs_cell_introduce1_t *inp, size_t newlen)
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+{
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+ uint8_t *newptr;
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+#if UINT16_MAX < SIZE_MAX
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+ if (newlen > UINT16_MAX)
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+ goto trunnel_alloc_failed;
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+#endif
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+ newptr = trunnel_dynarray_setlen(&inp->auth_key.allocated_,
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+ &inp->auth_key.n_, inp->auth_key.elts_, newlen,
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+ sizeof(inp->auth_key.elts_[0]), (trunnel_free_fn_t) NULL,
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+ &inp->trunnel_error_code_);
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+ if (newlen != 0 && newptr == NULL)
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+ goto trunnel_alloc_failed;
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+ inp->auth_key.elts_ = newptr;
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+ return 0;
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+ trunnel_alloc_failed:
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+ TRUNNEL_SET_ERROR_CODE(inp);
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+ return -1;
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+}
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+struct cell_extension_st *
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+hs_cell_introduce1_get_extensions(hs_cell_introduce1_t *inp)
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+{
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+ return inp->extensions;
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+}
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+const struct cell_extension_st *
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+hs_cell_introduce1_getconst_extensions(const hs_cell_introduce1_t *inp)
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+{
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+ return hs_cell_introduce1_get_extensions((hs_cell_introduce1_t*) inp);
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+}
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+int
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+hs_cell_introduce1_set_extensions(hs_cell_introduce1_t *inp, struct cell_extension_st *val)
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+{
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+ if (inp->extensions && inp->extensions != val)
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+ cell_extension_free(inp->extensions);
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+ return hs_cell_introduce1_set0_extensions(inp, val);
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+}
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+int
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+hs_cell_introduce1_set0_extensions(hs_cell_introduce1_t *inp, struct cell_extension_st *val)
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+{
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+ inp->extensions = val;
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+ return 0;
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+}
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+size_t
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+hs_cell_introduce1_getlen_encrypted(const hs_cell_introduce1_t *inp)
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+{
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+ return TRUNNEL_DYNARRAY_LEN(&inp->encrypted);
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+}
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+
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+uint8_t
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+hs_cell_introduce1_get_encrypted(hs_cell_introduce1_t *inp, size_t idx)
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+{
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+ return TRUNNEL_DYNARRAY_GET(&inp->encrypted, idx);
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+}
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+
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+uint8_t
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+hs_cell_introduce1_getconst_encrypted(const hs_cell_introduce1_t *inp, size_t idx)
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+{
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+ return hs_cell_introduce1_get_encrypted((hs_cell_introduce1_t*)inp, idx);
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+}
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+int
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+hs_cell_introduce1_set_encrypted(hs_cell_introduce1_t *inp, size_t idx, uint8_t elt)
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+{
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+ TRUNNEL_DYNARRAY_SET(&inp->encrypted, idx, elt);
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+ return 0;
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+}
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+int
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+hs_cell_introduce1_add_encrypted(hs_cell_introduce1_t *inp, uint8_t elt)
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+{
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+ TRUNNEL_DYNARRAY_ADD(uint8_t, &inp->encrypted, elt, {});
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+ return 0;
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+ trunnel_alloc_failed:
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+ TRUNNEL_SET_ERROR_CODE(inp);
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+ return -1;
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+}
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+
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+uint8_t *
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+hs_cell_introduce1_getarray_encrypted(hs_cell_introduce1_t *inp)
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+{
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+ return inp->encrypted.elts_;
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+}
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+const uint8_t *
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+hs_cell_introduce1_getconstarray_encrypted(const hs_cell_introduce1_t *inp)
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+{
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+ return (const uint8_t *)hs_cell_introduce1_getarray_encrypted((hs_cell_introduce1_t*)inp);
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+}
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+int
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+hs_cell_introduce1_setlen_encrypted(hs_cell_introduce1_t *inp, size_t newlen)
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+{
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+ uint8_t *newptr;
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+ newptr = trunnel_dynarray_setlen(&inp->encrypted.allocated_,
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+ &inp->encrypted.n_, inp->encrypted.elts_, newlen,
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+ sizeof(inp->encrypted.elts_[0]), (trunnel_free_fn_t) NULL,
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+ &inp->trunnel_error_code_);
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+ if (newlen != 0 && newptr == NULL)
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+ goto trunnel_alloc_failed;
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+ inp->encrypted.elts_ = newptr;
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+ return 0;
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+ trunnel_alloc_failed:
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+ TRUNNEL_SET_ERROR_CODE(inp);
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+ return -1;
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+}
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+const char *
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+hs_cell_introduce1_check(const hs_cell_introduce1_t *obj)
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+{
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+ if (obj == NULL)
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+ return "Object was NULL";
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+ if (obj->trunnel_error_code_)
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+ return "A set function failed on this object";
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+ if (! (obj->auth_key_type == 0 || obj->auth_key_type == 1 || obj->auth_key_type == 2))
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+ return "Integer out of bounds";
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+ if (TRUNNEL_DYNARRAY_LEN(&obj->auth_key) != obj->auth_key_len)
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+ return "Length mismatch for auth_key";
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+ {
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+ const char *msg;
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+ if (NULL != (msg = cell_extension_check(obj->extensions)))
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+ return msg;
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+ }
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+ return NULL;
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+}
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+
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+ssize_t
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+hs_cell_introduce1_encoded_len(const hs_cell_introduce1_t *obj)
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+{
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+ ssize_t result = 0;
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+
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+ if (NULL != hs_cell_introduce1_check(obj))
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+ return -1;
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+
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+
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+ /* Length of u8 legacy_key_id[TRUNNEL_SHA1_LEN] */
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+ result += TRUNNEL_SHA1_LEN;
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+
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+ /* Length of u8 auth_key_type IN [0, 1, 2] */
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+ result += 1;
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+
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+ /* Length of u16 auth_key_len */
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+ result += 2;
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+
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+ /* Length of u8 auth_key[auth_key_len] */
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+ result += TRUNNEL_DYNARRAY_LEN(&obj->auth_key);
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+
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+ /* Length of struct cell_extension extensions */
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+ result += cell_extension_encoded_len(obj->extensions);
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+
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+ /* Length of u8 encrypted[] */
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+ result += TRUNNEL_DYNARRAY_LEN(&obj->encrypted);
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+ return result;
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+}
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+int
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+hs_cell_introduce1_clear_errors(hs_cell_introduce1_t *obj)
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+{
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+ int r = obj->trunnel_error_code_;
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+ obj->trunnel_error_code_ = 0;
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+ return r;
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+}
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+ssize_t
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+hs_cell_introduce1_encode(uint8_t *output, const size_t avail, const hs_cell_introduce1_t *obj)
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+{
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+ ssize_t result = 0;
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+ size_t written = 0;
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+ uint8_t *ptr = output;
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+ const char *msg;
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+#ifdef TRUNNEL_CHECK_ENCODED_LEN
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+ const ssize_t encoded_len = hs_cell_introduce1_encoded_len(obj);
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+#endif
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+
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+ if (NULL != (msg = hs_cell_introduce1_check(obj)))
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+ goto check_failed;
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+
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+#ifdef TRUNNEL_CHECK_ENCODED_LEN
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+ trunnel_assert(encoded_len >= 0);
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+#endif
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+
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+ /* Encode u8 legacy_key_id[TRUNNEL_SHA1_LEN] */
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+ trunnel_assert(written <= avail);
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+ if (avail - written < TRUNNEL_SHA1_LEN)
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+ goto truncated;
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+ memcpy(ptr, obj->legacy_key_id, TRUNNEL_SHA1_LEN);
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|
|
+ written += TRUNNEL_SHA1_LEN; ptr += TRUNNEL_SHA1_LEN;
|
|
|
+
|
|
|
+ /* Encode u8 auth_key_type IN [0, 1, 2] */
|
|
|
+ trunnel_assert(written <= avail);
|
|
|
+ if (avail - written < 1)
|
|
|
+ goto truncated;
|
|
|
+ trunnel_set_uint8(ptr, (obj->auth_key_type));
|
|
|
+ written += 1; ptr += 1;
|
|
|
+
|
|
|
+ /* Encode u16 auth_key_len */
|
|
|
+ trunnel_assert(written <= avail);
|
|
|
+ if (avail - written < 2)
|
|
|
+ goto truncated;
|
|
|
+ trunnel_set_uint16(ptr, trunnel_htons(obj->auth_key_len));
|
|
|
+ written += 2; ptr += 2;
|
|
|
+
|
|
|
+ /* Encode u8 auth_key[auth_key_len] */
|
|
|
+ {
|
|
|
+ size_t elt_len = TRUNNEL_DYNARRAY_LEN(&obj->auth_key);
|
|
|
+ trunnel_assert(obj->auth_key_len == elt_len);
|
|
|
+ trunnel_assert(written <= avail);
|
|
|
+ if (avail - written < elt_len)
|
|
|
+ goto truncated;
|
|
|
+ if (elt_len)
|
|
|
+ memcpy(ptr, obj->auth_key.elts_, elt_len);
|
|
|
+ written += elt_len; ptr += elt_len;
|
|
|
+ }
|
|
|
+
|
|
|
+ /* Encode struct cell_extension extensions */
|
|
|
+ trunnel_assert(written <= avail);
|
|
|
+ result = cell_extension_encode(ptr, avail - written, obj->extensions);
|
|
|
+ if (result < 0)
|
|
|
+ goto fail; /* XXXXXXX !*/
|
|
|
+ written += result; ptr += result;
|
|
|
+
|
|
|
+ /* Encode u8 encrypted[] */
|
|
|
+ {
|
|
|
+ size_t elt_len = TRUNNEL_DYNARRAY_LEN(&obj->encrypted);
|
|
|
+ trunnel_assert(written <= avail);
|
|
|
+ if (avail - written < elt_len)
|
|
|
+ goto truncated;
|
|
|
+ if (elt_len)
|
|
|
+ memcpy(ptr, obj->encrypted.elts_, elt_len);
|
|
|
+ written += elt_len; ptr += elt_len;
|
|
|
+ }
|
|
|
+
|
|
|
+
|
|
|
+ trunnel_assert(ptr == output + written);
|
|
|
+#ifdef TRUNNEL_CHECK_ENCODED_LEN
|
|
|
+ {
|
|
|
+ trunnel_assert(encoded_len >= 0);
|
|
|
+ trunnel_assert((size_t)encoded_len == written);
|
|
|
+ }
|
|
|
+
|
|
|
+#endif
|
|
|
+
|
|
|
+ return written;
|
|
|
+
|
|
|
+ truncated:
|
|
|
+ result = -2;
|
|
|
+ goto fail;
|
|
|
+ check_failed:
|
|
|
+ (void)msg;
|
|
|
+ result = -1;
|
|
|
+ goto fail;
|
|
|
+ fail:
|
|
|
+ trunnel_assert(result < 0);
|
|
|
+ return result;
|
|
|
+}
|
|
|
+
|
|
|
+/** As hs_cell_introduce1_parse(), but do not allocate the output
|
|
|
+ * object.
|
|
|
+ */
|
|
|
+static ssize_t
|
|
|
+hs_cell_introduce1_parse_into(hs_cell_introduce1_t *obj, const uint8_t *input, const size_t len_in)
|
|
|
+{
|
|
|
+ const uint8_t *ptr = input;
|
|
|
+ size_t remaining = len_in;
|
|
|
+ ssize_t result = 0;
|
|
|
+ (void)result;
|
|
|
+
|
|
|
+ /* Parse u8 legacy_key_id[TRUNNEL_SHA1_LEN] */
|
|
|
+ CHECK_REMAINING(TRUNNEL_SHA1_LEN, truncated);
|
|
|
+ memcpy(obj->legacy_key_id, ptr, TRUNNEL_SHA1_LEN);
|
|
|
+ remaining -= TRUNNEL_SHA1_LEN; ptr += TRUNNEL_SHA1_LEN;
|
|
|
+
|
|
|
+ /* Parse u8 auth_key_type IN [0, 1, 2] */
|
|
|
+ CHECK_REMAINING(1, truncated);
|
|
|
+ obj->auth_key_type = (trunnel_get_uint8(ptr));
|
|
|
+ remaining -= 1; ptr += 1;
|
|
|
+ if (! (obj->auth_key_type == 0 || obj->auth_key_type == 1 || obj->auth_key_type == 2))
|
|
|
+ goto fail;
|
|
|
+
|
|
|
+ /* Parse u16 auth_key_len */
|
|
|
+ CHECK_REMAINING(2, truncated);
|
|
|
+ obj->auth_key_len = trunnel_ntohs(trunnel_get_uint16(ptr));
|
|
|
+ remaining -= 2; ptr += 2;
|
|
|
+
|
|
|
+ /* Parse u8 auth_key[auth_key_len] */
|
|
|
+ CHECK_REMAINING(obj->auth_key_len, truncated);
|
|
|
+ TRUNNEL_DYNARRAY_EXPAND(uint8_t, &obj->auth_key, obj->auth_key_len, {});
|
|
|
+ obj->auth_key.n_ = obj->auth_key_len;
|
|
|
+ if (obj->auth_key_len)
|
|
|
+ memcpy(obj->auth_key.elts_, ptr, obj->auth_key_len);
|
|
|
+ ptr += obj->auth_key_len; remaining -= obj->auth_key_len;
|
|
|
+
|
|
|
+ /* Parse struct cell_extension extensions */
|
|
|
+ result = cell_extension_parse(&obj->extensions, ptr, remaining);
|
|
|
+ if (result < 0)
|
|
|
+ goto relay_fail;
|
|
|
+ trunnel_assert((size_t)result <= remaining);
|
|
|
+ remaining -= result; ptr += result;
|
|
|
+
|
|
|
+ /* Parse u8 encrypted[] */
|
|
|
+ TRUNNEL_DYNARRAY_EXPAND(uint8_t, &obj->encrypted, remaining, {});
|
|
|
+ obj->encrypted.n_ = remaining;
|
|
|
+ if (remaining)
|
|
|
+ memcpy(obj->encrypted.elts_, ptr, remaining);
|
|
|
+ ptr += remaining; remaining -= remaining;
|
|
|
+ trunnel_assert(ptr + remaining == input + len_in);
|
|
|
+ return len_in - remaining;
|
|
|
+
|
|
|
+ truncated:
|
|
|
+ return -2;
|
|
|
+ relay_fail:
|
|
|
+ trunnel_assert(result < 0);
|
|
|
+ return result;
|
|
|
+ trunnel_alloc_failed:
|
|
|
+ return -1;
|
|
|
+ fail:
|
|
|
+ result = -1;
|
|
|
+ return result;
|
|
|
+}
|
|
|
+
|
|
|
+ssize_t
|
|
|
+hs_cell_introduce1_parse(hs_cell_introduce1_t **output, const uint8_t *input, const size_t len_in)
|
|
|
+{
|
|
|
+ ssize_t result;
|
|
|
+ *output = hs_cell_introduce1_new();
|
|
|
+ if (NULL == *output)
|
|
|
+ return -1;
|
|
|
+ result = hs_cell_introduce1_parse_into(*output, input, len_in);
|
|
|
+ if (result < 0) {
|
|
|
+ hs_cell_introduce1_free(*output);
|
|
|
+ *output = NULL;
|
|
|
+ }
|
|
|
+ return result;
|
|
|
+}
|
|
|
+hs_cell_introduce_ack_t *
|
|
|
+hs_cell_introduce_ack_new(void)
|
|
|
+{
|
|
|
+ hs_cell_introduce_ack_t *val = trunnel_calloc(1, sizeof(hs_cell_introduce_ack_t));
|
|
|
+ if (NULL == val)
|
|
|
+ return NULL;
|
|
|
+ return val;
|
|
|
+}
|
|
|
+
|
|
|
+/** Release all storage held inside 'obj', but do not free 'obj'.
|
|
|
+ */
|
|
|
+static void
|
|
|
+hs_cell_introduce_ack_clear(hs_cell_introduce_ack_t *obj)
|
|
|
+{
|
|
|
+ (void) obj;
|
|
|
+ cell_extension_free(obj->extensions);
|
|
|
+ obj->extensions = NULL;
|
|
|
+}
|
|
|
+
|
|
|
+void
|
|
|
+hs_cell_introduce_ack_free(hs_cell_introduce_ack_t *obj)
|
|
|
+{
|
|
|
+ if (obj == NULL)
|
|
|
+ return;
|
|
|
+ hs_cell_introduce_ack_clear(obj);
|
|
|
+ trunnel_memwipe(obj, sizeof(hs_cell_introduce_ack_t));
|
|
|
+ trunnel_free_(obj);
|
|
|
+}
|
|
|
+
|
|
|
+uint16_t
|
|
|
+hs_cell_introduce_ack_get_status(hs_cell_introduce_ack_t *inp)
|
|
|
+{
|
|
|
+ return inp->status;
|
|
|
+}
|
|
|
+int
|
|
|
+hs_cell_introduce_ack_set_status(hs_cell_introduce_ack_t *inp, uint16_t val)
|
|
|
+{
|
|
|
+ if (! ((val == 0 || val == 1 || val == 2))) {
|
|
|
+ TRUNNEL_SET_ERROR_CODE(inp);
|
|
|
+ return -1;
|
|
|
+ }
|
|
|
+ inp->status = val;
|
|
|
+ return 0;
|
|
|
+}
|
|
|
+struct cell_extension_st *
|
|
|
+hs_cell_introduce_ack_get_extensions(hs_cell_introduce_ack_t *inp)
|
|
|
+{
|
|
|
+ return inp->extensions;
|
|
|
+}
|
|
|
+const struct cell_extension_st *
|
|
|
+hs_cell_introduce_ack_getconst_extensions(const hs_cell_introduce_ack_t *inp)
|
|
|
+{
|
|
|
+ return hs_cell_introduce_ack_get_extensions((hs_cell_introduce_ack_t*) inp);
|
|
|
+}
|
|
|
+int
|
|
|
+hs_cell_introduce_ack_set_extensions(hs_cell_introduce_ack_t *inp, struct cell_extension_st *val)
|
|
|
+{
|
|
|
+ if (inp->extensions && inp->extensions != val)
|
|
|
+ cell_extension_free(inp->extensions);
|
|
|
+ return hs_cell_introduce_ack_set0_extensions(inp, val);
|
|
|
+}
|
|
|
+int
|
|
|
+hs_cell_introduce_ack_set0_extensions(hs_cell_introduce_ack_t *inp, struct cell_extension_st *val)
|
|
|
+{
|
|
|
+ inp->extensions = val;
|
|
|
+ return 0;
|
|
|
+}
|
|
|
+const char *
|
|
|
+hs_cell_introduce_ack_check(const hs_cell_introduce_ack_t *obj)
|
|
|
+{
|
|
|
+ if (obj == NULL)
|
|
|
+ return "Object was NULL";
|
|
|
+ if (obj->trunnel_error_code_)
|
|
|
+ return "A set function failed on this object";
|
|
|
+ if (! (obj->status == 0 || obj->status == 1 || obj->status == 2))
|
|
|
+ return "Integer out of bounds";
|
|
|
+ {
|
|
|
+ const char *msg;
|
|
|
+ if (NULL != (msg = cell_extension_check(obj->extensions)))
|
|
|
+ return msg;
|
|
|
+ }
|
|
|
+ return NULL;
|
|
|
+}
|
|
|
+
|
|
|
+ssize_t
|
|
|
+hs_cell_introduce_ack_encoded_len(const hs_cell_introduce_ack_t *obj)
|
|
|
+{
|
|
|
+ ssize_t result = 0;
|
|
|
+
|
|
|
+ if (NULL != hs_cell_introduce_ack_check(obj))
|
|
|
+ return -1;
|
|
|
+
|
|
|
+
|
|
|
+ /* Length of u16 status IN [0, 1, 2] */
|
|
|
+ result += 2;
|
|
|
+
|
|
|
+ /* Length of struct cell_extension extensions */
|
|
|
+ result += cell_extension_encoded_len(obj->extensions);
|
|
|
+ return result;
|
|
|
+}
|
|
|
+int
|
|
|
+hs_cell_introduce_ack_clear_errors(hs_cell_introduce_ack_t *obj)
|
|
|
+{
|
|
|
+ int r = obj->trunnel_error_code_;
|
|
|
+ obj->trunnel_error_code_ = 0;
|
|
|
+ return r;
|
|
|
+}
|
|
|
+ssize_t
|
|
|
+hs_cell_introduce_ack_encode(uint8_t *output, const size_t avail, const hs_cell_introduce_ack_t *obj)
|
|
|
+{
|
|
|
+ ssize_t result = 0;
|
|
|
+ size_t written = 0;
|
|
|
+ uint8_t *ptr = output;
|
|
|
+ const char *msg;
|
|
|
+#ifdef TRUNNEL_CHECK_ENCODED_LEN
|
|
|
+ const ssize_t encoded_len = hs_cell_introduce_ack_encoded_len(obj);
|
|
|
+#endif
|
|
|
+
|
|
|
+ if (NULL != (msg = hs_cell_introduce_ack_check(obj)))
|
|
|
+ goto check_failed;
|
|
|
+
|
|
|
+#ifdef TRUNNEL_CHECK_ENCODED_LEN
|
|
|
+ trunnel_assert(encoded_len >= 0);
|
|
|
+#endif
|
|
|
+
|
|
|
+ /* Encode u16 status IN [0, 1, 2] */
|
|
|
+ trunnel_assert(written <= avail);
|
|
|
+ if (avail - written < 2)
|
|
|
+ goto truncated;
|
|
|
+ trunnel_set_uint16(ptr, trunnel_htons(obj->status));
|
|
|
+ written += 2; ptr += 2;
|
|
|
+
|
|
|
+ /* Encode struct cell_extension extensions */
|
|
|
+ trunnel_assert(written <= avail);
|
|
|
+ result = cell_extension_encode(ptr, avail - written, obj->extensions);
|
|
|
+ if (result < 0)
|
|
|
+ goto fail; /* XXXXXXX !*/
|
|
|
+ written += result; ptr += result;
|
|
|
+
|
|
|
+
|
|
|
+ trunnel_assert(ptr == output + written);
|
|
|
+#ifdef TRUNNEL_CHECK_ENCODED_LEN
|
|
|
+ {
|
|
|
+ trunnel_assert(encoded_len >= 0);
|
|
|
+ trunnel_assert((size_t)encoded_len == written);
|
|
|
+ }
|
|
|
+
|
|
|
+#endif
|
|
|
+
|
|
|
+ return written;
|
|
|
+
|
|
|
+ truncated:
|
|
|
+ result = -2;
|
|
|
+ goto fail;
|
|
|
+ check_failed:
|
|
|
+ (void)msg;
|
|
|
+ result = -1;
|
|
|
+ goto fail;
|
|
|
+ fail:
|
|
|
+ trunnel_assert(result < 0);
|
|
|
+ return result;
|
|
|
+}
|
|
|
+
|
|
|
+/** As hs_cell_introduce_ack_parse(), but do not allocate the output
|
|
|
+ * object.
|
|
|
+ */
|
|
|
+static ssize_t
|
|
|
+hs_cell_introduce_ack_parse_into(hs_cell_introduce_ack_t *obj, const uint8_t *input, const size_t len_in)
|
|
|
+{
|
|
|
+ const uint8_t *ptr = input;
|
|
|
+ size_t remaining = len_in;
|
|
|
+ ssize_t result = 0;
|
|
|
+ (void)result;
|
|
|
+
|
|
|
+ /* Parse u16 status IN [0, 1, 2] */
|
|
|
+ CHECK_REMAINING(2, truncated);
|
|
|
+ obj->status = trunnel_ntohs(trunnel_get_uint16(ptr));
|
|
|
+ remaining -= 2; ptr += 2;
|
|
|
+ if (! (obj->status == 0 || obj->status == 1 || obj->status == 2))
|
|
|
+ goto fail;
|
|
|
+
|
|
|
+ /* Parse struct cell_extension extensions */
|
|
|
+ result = cell_extension_parse(&obj->extensions, ptr, remaining);
|
|
|
+ if (result < 0)
|
|
|
+ goto relay_fail;
|
|
|
+ trunnel_assert((size_t)result <= remaining);
|
|
|
+ remaining -= result; ptr += result;
|
|
|
+ trunnel_assert(ptr + remaining == input + len_in);
|
|
|
+ return len_in - remaining;
|
|
|
+
|
|
|
+ truncated:
|
|
|
+ return -2;
|
|
|
+ relay_fail:
|
|
|
+ trunnel_assert(result < 0);
|
|
|
+ return result;
|
|
|
+ fail:
|
|
|
+ result = -1;
|
|
|
+ return result;
|
|
|
+}
|
|
|
+
|
|
|
+ssize_t
|
|
|
+hs_cell_introduce_ack_parse(hs_cell_introduce_ack_t **output, const uint8_t *input, const size_t len_in)
|
|
|
+{
|
|
|
+ ssize_t result;
|
|
|
+ *output = hs_cell_introduce_ack_new();
|
|
|
+ if (NULL == *output)
|
|
|
+ return -1;
|
|
|
+ result = hs_cell_introduce_ack_parse_into(*output, input, len_in);
|
|
|
+ if (result < 0) {
|
|
|
+ hs_cell_introduce_ack_free(*output);
|
|
|
+ *output = NULL;
|
|
|
+ }
|
|
|
+ return result;
|
|
|
+}
|
|
|
+hs_cell_introduce_encrypted_t *
|
|
|
+hs_cell_introduce_encrypted_new(void)
|
|
|
+{
|
|
|
+ hs_cell_introduce_encrypted_t *val = trunnel_calloc(1, sizeof(hs_cell_introduce_encrypted_t));
|
|
|
+ if (NULL == val)
|
|
|
+ return NULL;
|
|
|
+ return val;
|
|
|
+}
|
|
|
+
|
|
|
+/** Release all storage held inside 'obj', but do not free 'obj'.
|
|
|
+ */
|
|
|
+static void
|
|
|
+hs_cell_introduce_encrypted_clear(hs_cell_introduce_encrypted_t *obj)
|
|
|
+{
|
|
|
+ (void) obj;
|
|
|
+ cell_extension_free(obj->extensions);
|
|
|
+ obj->extensions = NULL;
|
|
|
+ TRUNNEL_DYNARRAY_WIPE(&obj->onion_key);
|
|
|
+ TRUNNEL_DYNARRAY_CLEAR(&obj->onion_key);
|
|
|
+ {
|
|
|
+
|
|
|
+ unsigned idx;
|
|
|
+ for (idx = 0; idx < TRUNNEL_DYNARRAY_LEN(&obj->nspecs); ++idx) {
|
|
|
+ link_specifier_free(TRUNNEL_DYNARRAY_GET(&obj->nspecs, idx));
|
|
|
+ }
|
|
|
+ }
|
|
|
+ TRUNNEL_DYNARRAY_WIPE(&obj->nspecs);
|
|
|
+ TRUNNEL_DYNARRAY_CLEAR(&obj->nspecs);
|
|
|
+ TRUNNEL_DYNARRAY_WIPE(&obj->pad);
|
|
|
+ TRUNNEL_DYNARRAY_CLEAR(&obj->pad);
|
|
|
+}
|
|
|
+
|
|
|
+void
|
|
|
+hs_cell_introduce_encrypted_free(hs_cell_introduce_encrypted_t *obj)
|
|
|
+{
|
|
|
+ if (obj == NULL)
|
|
|
+ return;
|
|
|
+ hs_cell_introduce_encrypted_clear(obj);
|
|
|
+ trunnel_memwipe(obj, sizeof(hs_cell_introduce_encrypted_t));
|
|
|
+ trunnel_free_(obj);
|
|
|
+}
|
|
|
+
|
|
|
+size_t
|
|
|
+hs_cell_introduce_encrypted_getlen_rend_cookie(const hs_cell_introduce_encrypted_t *inp)
|
|
|
+{
|
|
|
+ (void)inp; return TRUNNEL_REND_COOKIE_LEN;
|
|
|
+}
|
|
|
+
|
|
|
+uint8_t
|
|
|
+hs_cell_introduce_encrypted_get_rend_cookie(hs_cell_introduce_encrypted_t *inp, size_t idx)
|
|
|
+{
|
|
|
+ trunnel_assert(idx < TRUNNEL_REND_COOKIE_LEN);
|
|
|
+ return inp->rend_cookie[idx];
|
|
|
+}
|
|
|
+
|
|
|
+uint8_t
|
|
|
+hs_cell_introduce_encrypted_getconst_rend_cookie(const hs_cell_introduce_encrypted_t *inp, size_t idx)
|
|
|
+{
|
|
|
+ return hs_cell_introduce_encrypted_get_rend_cookie((hs_cell_introduce_encrypted_t*)inp, idx);
|
|
|
+}
|
|
|
+int
|
|
|
+hs_cell_introduce_encrypted_set_rend_cookie(hs_cell_introduce_encrypted_t *inp, size_t idx, uint8_t elt)
|
|
|
+{
|
|
|
+ trunnel_assert(idx < TRUNNEL_REND_COOKIE_LEN);
|
|
|
+ inp->rend_cookie[idx] = elt;
|
|
|
+ return 0;
|
|
|
+}
|
|
|
+
|
|
|
+uint8_t *
|
|
|
+hs_cell_introduce_encrypted_getarray_rend_cookie(hs_cell_introduce_encrypted_t *inp)
|
|
|
+{
|
|
|
+ return inp->rend_cookie;
|
|
|
+}
|
|
|
+const uint8_t *
|
|
|
+hs_cell_introduce_encrypted_getconstarray_rend_cookie(const hs_cell_introduce_encrypted_t *inp)
|
|
|
+{
|
|
|
+ return (const uint8_t *)hs_cell_introduce_encrypted_getarray_rend_cookie((hs_cell_introduce_encrypted_t*)inp);
|
|
|
+}
|
|
|
+struct cell_extension_st *
|
|
|
+hs_cell_introduce_encrypted_get_extensions(hs_cell_introduce_encrypted_t *inp)
|
|
|
+{
|
|
|
+ return inp->extensions;
|
|
|
+}
|
|
|
+const struct cell_extension_st *
|
|
|
+hs_cell_introduce_encrypted_getconst_extensions(const hs_cell_introduce_encrypted_t *inp)
|
|
|
+{
|
|
|
+ return hs_cell_introduce_encrypted_get_extensions((hs_cell_introduce_encrypted_t*) inp);
|
|
|
+}
|
|
|
+int
|
|
|
+hs_cell_introduce_encrypted_set_extensions(hs_cell_introduce_encrypted_t *inp, struct cell_extension_st *val)
|
|
|
+{
|
|
|
+ if (inp->extensions && inp->extensions != val)
|
|
|
+ cell_extension_free(inp->extensions);
|
|
|
+ return hs_cell_introduce_encrypted_set0_extensions(inp, val);
|
|
|
+}
|
|
|
+int
|
|
|
+hs_cell_introduce_encrypted_set0_extensions(hs_cell_introduce_encrypted_t *inp, struct cell_extension_st *val)
|
|
|
+{
|
|
|
+ inp->extensions = val;
|
|
|
+ return 0;
|
|
|
+}
|
|
|
+uint8_t
|
|
|
+hs_cell_introduce_encrypted_get_onion_key_type(hs_cell_introduce_encrypted_t *inp)
|
|
|
+{
|
|
|
+ return inp->onion_key_type;
|
|
|
+}
|
|
|
+int
|
|
|
+hs_cell_introduce_encrypted_set_onion_key_type(hs_cell_introduce_encrypted_t *inp, uint8_t val)
|
|
|
+{
|
|
|
+ inp->onion_key_type = val;
|
|
|
+ return 0;
|
|
|
+}
|
|
|
+uint16_t
|
|
|
+hs_cell_introduce_encrypted_get_onion_key_len(hs_cell_introduce_encrypted_t *inp)
|
|
|
+{
|
|
|
+ return inp->onion_key_len;
|
|
|
+}
|
|
|
+int
|
|
|
+hs_cell_introduce_encrypted_set_onion_key_len(hs_cell_introduce_encrypted_t *inp, uint16_t val)
|
|
|
+{
|
|
|
+ inp->onion_key_len = val;
|
|
|
+ return 0;
|
|
|
+}
|
|
|
+size_t
|
|
|
+hs_cell_introduce_encrypted_getlen_onion_key(const hs_cell_introduce_encrypted_t *inp)
|
|
|
+{
|
|
|
+ return TRUNNEL_DYNARRAY_LEN(&inp->onion_key);
|
|
|
+}
|
|
|
+
|
|
|
+uint8_t
|
|
|
+hs_cell_introduce_encrypted_get_onion_key(hs_cell_introduce_encrypted_t *inp, size_t idx)
|
|
|
+{
|
|
|
+ return TRUNNEL_DYNARRAY_GET(&inp->onion_key, idx);
|
|
|
+}
|
|
|
+
|
|
|
+uint8_t
|
|
|
+hs_cell_introduce_encrypted_getconst_onion_key(const hs_cell_introduce_encrypted_t *inp, size_t idx)
|
|
|
+{
|
|
|
+ return hs_cell_introduce_encrypted_get_onion_key((hs_cell_introduce_encrypted_t*)inp, idx);
|
|
|
+}
|
|
|
+int
|
|
|
+hs_cell_introduce_encrypted_set_onion_key(hs_cell_introduce_encrypted_t *inp, size_t idx, uint8_t elt)
|
|
|
+{
|
|
|
+ TRUNNEL_DYNARRAY_SET(&inp->onion_key, idx, elt);
|
|
|
+ return 0;
|
|
|
+}
|
|
|
+int
|
|
|
+hs_cell_introduce_encrypted_add_onion_key(hs_cell_introduce_encrypted_t *inp, uint8_t elt)
|
|
|
+{
|
|
|
+#if SIZE_MAX >= UINT16_MAX
|
|
|
+ if (inp->onion_key.n_ == UINT16_MAX)
|
|
|
+ goto trunnel_alloc_failed;
|
|
|
+#endif
|
|
|
+ TRUNNEL_DYNARRAY_ADD(uint8_t, &inp->onion_key, elt, {});
|
|
|
+ return 0;
|
|
|
+ trunnel_alloc_failed:
|
|
|
+ TRUNNEL_SET_ERROR_CODE(inp);
|
|
|
+ return -1;
|
|
|
+}
|
|
|
+
|
|
|
+uint8_t *
|
|
|
+hs_cell_introduce_encrypted_getarray_onion_key(hs_cell_introduce_encrypted_t *inp)
|
|
|
+{
|
|
|
+ return inp->onion_key.elts_;
|
|
|
+}
|
|
|
+const uint8_t *
|
|
|
+hs_cell_introduce_encrypted_getconstarray_onion_key(const hs_cell_introduce_encrypted_t *inp)
|
|
|
+{
|
|
|
+ return (const uint8_t *)hs_cell_introduce_encrypted_getarray_onion_key((hs_cell_introduce_encrypted_t*)inp);
|
|
|
+}
|
|
|
+int
|
|
|
+hs_cell_introduce_encrypted_setlen_onion_key(hs_cell_introduce_encrypted_t *inp, size_t newlen)
|
|
|
+{
|
|
|
+ uint8_t *newptr;
|
|
|
+#if UINT16_MAX < SIZE_MAX
|
|
|
+ if (newlen > UINT16_MAX)
|
|
|
+ goto trunnel_alloc_failed;
|
|
|
+#endif
|
|
|
+ newptr = trunnel_dynarray_setlen(&inp->onion_key.allocated_,
|
|
|
+ &inp->onion_key.n_, inp->onion_key.elts_, newlen,
|
|
|
+ sizeof(inp->onion_key.elts_[0]), (trunnel_free_fn_t) NULL,
|
|
|
+ &inp->trunnel_error_code_);
|
|
|
+ if (newlen != 0 && newptr == NULL)
|
|
|
+ goto trunnel_alloc_failed;
|
|
|
+ inp->onion_key.elts_ = newptr;
|
|
|
+ return 0;
|
|
|
+ trunnel_alloc_failed:
|
|
|
+ TRUNNEL_SET_ERROR_CODE(inp);
|
|
|
+ return -1;
|
|
|
+}
|
|
|
+uint8_t
|
|
|
+hs_cell_introduce_encrypted_get_nspec(hs_cell_introduce_encrypted_t *inp)
|
|
|
+{
|
|
|
+ return inp->nspec;
|
|
|
+}
|
|
|
+int
|
|
|
+hs_cell_introduce_encrypted_set_nspec(hs_cell_introduce_encrypted_t *inp, uint8_t val)
|
|
|
+{
|
|
|
+ inp->nspec = val;
|
|
|
+ return 0;
|
|
|
+}
|
|
|
+size_t
|
|
|
+hs_cell_introduce_encrypted_getlen_nspecs(const hs_cell_introduce_encrypted_t *inp)
|
|
|
+{
|
|
|
+ return TRUNNEL_DYNARRAY_LEN(&inp->nspecs);
|
|
|
+}
|
|
|
+
|
|
|
+struct link_specifier_st *
|
|
|
+hs_cell_introduce_encrypted_get_nspecs(hs_cell_introduce_encrypted_t *inp, size_t idx)
|
|
|
+{
|
|
|
+ return TRUNNEL_DYNARRAY_GET(&inp->nspecs, idx);
|
|
|
+}
|
|
|
+
|
|
|
+ const struct link_specifier_st *
|
|
|
+hs_cell_introduce_encrypted_getconst_nspecs(const hs_cell_introduce_encrypted_t *inp, size_t idx)
|
|
|
+{
|
|
|
+ return hs_cell_introduce_encrypted_get_nspecs((hs_cell_introduce_encrypted_t*)inp, idx);
|
|
|
+}
|
|
|
+int
|
|
|
+hs_cell_introduce_encrypted_set_nspecs(hs_cell_introduce_encrypted_t *inp, size_t idx, struct link_specifier_st * elt)
|
|
|
+{
|
|
|
+ link_specifier_t *oldval = TRUNNEL_DYNARRAY_GET(&inp->nspecs, idx);
|
|
|
+ if (oldval && oldval != elt)
|
|
|
+ link_specifier_free(oldval);
|
|
|
+ return hs_cell_introduce_encrypted_set0_nspecs(inp, idx, elt);
|
|
|
+}
|
|
|
+int
|
|
|
+hs_cell_introduce_encrypted_set0_nspecs(hs_cell_introduce_encrypted_t *inp, size_t idx, struct link_specifier_st * elt)
|
|
|
+{
|
|
|
+ TRUNNEL_DYNARRAY_SET(&inp->nspecs, idx, elt);
|
|
|
+ return 0;
|
|
|
+}
|
|
|
+int
|
|
|
+hs_cell_introduce_encrypted_add_nspecs(hs_cell_introduce_encrypted_t *inp, struct link_specifier_st * elt)
|
|
|
+{
|
|
|
+#if SIZE_MAX >= UINT8_MAX
|
|
|
+ if (inp->nspecs.n_ == UINT8_MAX)
|
|
|
+ goto trunnel_alloc_failed;
|
|
|
+#endif
|
|
|
+ TRUNNEL_DYNARRAY_ADD(struct link_specifier_st *, &inp->nspecs, elt, {});
|
|
|
+ return 0;
|
|
|
+ trunnel_alloc_failed:
|
|
|
+ TRUNNEL_SET_ERROR_CODE(inp);
|
|
|
+ return -1;
|
|
|
+}
|
|
|
+
|
|
|
+struct link_specifier_st * *
|
|
|
+hs_cell_introduce_encrypted_getarray_nspecs(hs_cell_introduce_encrypted_t *inp)
|
|
|
+{
|
|
|
+ return inp->nspecs.elts_;
|
|
|
+}
|
|
|
+const struct link_specifier_st * const *
|
|
|
+hs_cell_introduce_encrypted_getconstarray_nspecs(const hs_cell_introduce_encrypted_t *inp)
|
|
|
+{
|
|
|
+ return (const struct link_specifier_st * const *)hs_cell_introduce_encrypted_getarray_nspecs((hs_cell_introduce_encrypted_t*)inp);
|
|
|
+}
|
|
|
+int
|
|
|
+hs_cell_introduce_encrypted_setlen_nspecs(hs_cell_introduce_encrypted_t *inp, size_t newlen)
|
|
|
+{
|
|
|
+ struct link_specifier_st * *newptr;
|
|
|
+#if UINT8_MAX < SIZE_MAX
|
|
|
+ if (newlen > UINT8_MAX)
|
|
|
+ goto trunnel_alloc_failed;
|
|
|
+#endif
|
|
|
+ newptr = trunnel_dynarray_setlen(&inp->nspecs.allocated_,
|
|
|
+ &inp->nspecs.n_, inp->nspecs.elts_, newlen,
|
|
|
+ sizeof(inp->nspecs.elts_[0]), (trunnel_free_fn_t) link_specifier_free,
|
|
|
+ &inp->trunnel_error_code_);
|
|
|
+ if (newlen != 0 && newptr == NULL)
|
|
|
+ goto trunnel_alloc_failed;
|
|
|
+ inp->nspecs.elts_ = newptr;
|
|
|
+ return 0;
|
|
|
+ trunnel_alloc_failed:
|
|
|
+ TRUNNEL_SET_ERROR_CODE(inp);
|
|
|
+ return -1;
|
|
|
+}
|
|
|
+size_t
|
|
|
+hs_cell_introduce_encrypted_getlen_pad(const hs_cell_introduce_encrypted_t *inp)
|
|
|
+{
|
|
|
+ return TRUNNEL_DYNARRAY_LEN(&inp->pad);
|
|
|
+}
|
|
|
+
|
|
|
+uint8_t
|
|
|
+hs_cell_introduce_encrypted_get_pad(hs_cell_introduce_encrypted_t *inp, size_t idx)
|
|
|
+{
|
|
|
+ return TRUNNEL_DYNARRAY_GET(&inp->pad, idx);
|
|
|
+}
|
|
|
+
|
|
|
+uint8_t
|
|
|
+hs_cell_introduce_encrypted_getconst_pad(const hs_cell_introduce_encrypted_t *inp, size_t idx)
|
|
|
+{
|
|
|
+ return hs_cell_introduce_encrypted_get_pad((hs_cell_introduce_encrypted_t*)inp, idx);
|
|
|
+}
|
|
|
+int
|
|
|
+hs_cell_introduce_encrypted_set_pad(hs_cell_introduce_encrypted_t *inp, size_t idx, uint8_t elt)
|
|
|
+{
|
|
|
+ TRUNNEL_DYNARRAY_SET(&inp->pad, idx, elt);
|
|
|
+ return 0;
|
|
|
+}
|
|
|
+int
|
|
|
+hs_cell_introduce_encrypted_add_pad(hs_cell_introduce_encrypted_t *inp, uint8_t elt)
|
|
|
+{
|
|
|
+ TRUNNEL_DYNARRAY_ADD(uint8_t, &inp->pad, elt, {});
|
|
|
+ return 0;
|
|
|
+ trunnel_alloc_failed:
|
|
|
+ TRUNNEL_SET_ERROR_CODE(inp);
|
|
|
+ return -1;
|
|
|
+}
|
|
|
+
|
|
|
+uint8_t *
|
|
|
+hs_cell_introduce_encrypted_getarray_pad(hs_cell_introduce_encrypted_t *inp)
|
|
|
+{
|
|
|
+ return inp->pad.elts_;
|
|
|
+}
|
|
|
+const uint8_t *
|
|
|
+hs_cell_introduce_encrypted_getconstarray_pad(const hs_cell_introduce_encrypted_t *inp)
|
|
|
+{
|
|
|
+ return (const uint8_t *)hs_cell_introduce_encrypted_getarray_pad((hs_cell_introduce_encrypted_t*)inp);
|
|
|
+}
|
|
|
+int
|
|
|
+hs_cell_introduce_encrypted_setlen_pad(hs_cell_introduce_encrypted_t *inp, size_t newlen)
|
|
|
+{
|
|
|
+ uint8_t *newptr;
|
|
|
+ newptr = trunnel_dynarray_setlen(&inp->pad.allocated_,
|
|
|
+ &inp->pad.n_, inp->pad.elts_, newlen,
|
|
|
+ sizeof(inp->pad.elts_[0]), (trunnel_free_fn_t) NULL,
|
|
|
+ &inp->trunnel_error_code_);
|
|
|
+ if (newlen != 0 && newptr == NULL)
|
|
|
+ goto trunnel_alloc_failed;
|
|
|
+ inp->pad.elts_ = newptr;
|
|
|
+ return 0;
|
|
|
+ trunnel_alloc_failed:
|
|
|
+ TRUNNEL_SET_ERROR_CODE(inp);
|
|
|
+ return -1;
|
|
|
+}
|
|
|
+const char *
|
|
|
+hs_cell_introduce_encrypted_check(const hs_cell_introduce_encrypted_t *obj)
|
|
|
+{
|
|
|
+ if (obj == NULL)
|
|
|
+ return "Object was NULL";
|
|
|
+ if (obj->trunnel_error_code_)
|
|
|
+ return "A set function failed on this object";
|
|
|
+ {
|
|
|
+ const char *msg;
|
|
|
+ if (NULL != (msg = cell_extension_check(obj->extensions)))
|
|
|
+ return msg;
|
|
|
+ }
|
|
|
+ if (TRUNNEL_DYNARRAY_LEN(&obj->onion_key) != obj->onion_key_len)
|
|
|
+ return "Length mismatch for onion_key";
|
|
|
+ {
|
|
|
+ const char *msg;
|
|
|
+
|
|
|
+ unsigned idx;
|
|
|
+ for (idx = 0; idx < TRUNNEL_DYNARRAY_LEN(&obj->nspecs); ++idx) {
|
|
|
+ if (NULL != (msg = link_specifier_check(TRUNNEL_DYNARRAY_GET(&obj->nspecs, idx))))
|
|
|
+ return msg;
|
|
|
+ }
|
|
|
+ }
|
|
|
+ if (TRUNNEL_DYNARRAY_LEN(&obj->nspecs) != obj->nspec)
|
|
|
+ return "Length mismatch for nspecs";
|
|
|
+ return NULL;
|
|
|
+}
|
|
|
+
|
|
|
+ssize_t
|
|
|
+hs_cell_introduce_encrypted_encoded_len(const hs_cell_introduce_encrypted_t *obj)
|
|
|
+{
|
|
|
+ ssize_t result = 0;
|
|
|
+
|
|
|
+ if (NULL != hs_cell_introduce_encrypted_check(obj))
|
|
|
+ return -1;
|
|
|
+
|
|
|
+
|
|
|
+ /* Length of u8 rend_cookie[TRUNNEL_REND_COOKIE_LEN] */
|
|
|
+ result += TRUNNEL_REND_COOKIE_LEN;
|
|
|
+
|
|
|
+ /* Length of struct cell_extension extensions */
|
|
|
+ result += cell_extension_encoded_len(obj->extensions);
|
|
|
+
|
|
|
+ /* Length of u8 onion_key_type */
|
|
|
+ result += 1;
|
|
|
+
|
|
|
+ /* Length of u16 onion_key_len */
|
|
|
+ result += 2;
|
|
|
+
|
|
|
+ /* Length of u8 onion_key[onion_key_len] */
|
|
|
+ result += TRUNNEL_DYNARRAY_LEN(&obj->onion_key);
|
|
|
+
|
|
|
+ /* Length of u8 nspec */
|
|
|
+ result += 1;
|
|
|
+
|
|
|
+ /* Length of struct link_specifier nspecs[nspec] */
|
|
|
+ {
|
|
|
+
|
|
|
+ unsigned idx;
|
|
|
+ for (idx = 0; idx < TRUNNEL_DYNARRAY_LEN(&obj->nspecs); ++idx) {
|
|
|
+ result += link_specifier_encoded_len(TRUNNEL_DYNARRAY_GET(&obj->nspecs, idx));
|
|
|
+ }
|
|
|
+ }
|
|
|
+
|
|
|
+ /* Length of u8 pad[] */
|
|
|
+ result += TRUNNEL_DYNARRAY_LEN(&obj->pad);
|
|
|
+ return result;
|
|
|
+}
|
|
|
+int
|
|
|
+hs_cell_introduce_encrypted_clear_errors(hs_cell_introduce_encrypted_t *obj)
|
|
|
+{
|
|
|
+ int r = obj->trunnel_error_code_;
|
|
|
+ obj->trunnel_error_code_ = 0;
|
|
|
+ return r;
|
|
|
+}
|
|
|
+ssize_t
|
|
|
+hs_cell_introduce_encrypted_encode(uint8_t *output, const size_t avail, const hs_cell_introduce_encrypted_t *obj)
|
|
|
+{
|
|
|
+ ssize_t result = 0;
|
|
|
+ size_t written = 0;
|
|
|
+ uint8_t *ptr = output;
|
|
|
+ const char *msg;
|
|
|
+#ifdef TRUNNEL_CHECK_ENCODED_LEN
|
|
|
+ const ssize_t encoded_len = hs_cell_introduce_encrypted_encoded_len(obj);
|
|
|
+#endif
|
|
|
+
|
|
|
+ if (NULL != (msg = hs_cell_introduce_encrypted_check(obj)))
|
|
|
+ goto check_failed;
|
|
|
+
|
|
|
+#ifdef TRUNNEL_CHECK_ENCODED_LEN
|
|
|
+ trunnel_assert(encoded_len >= 0);
|
|
|
+#endif
|
|
|
+
|
|
|
+ /* Encode u8 rend_cookie[TRUNNEL_REND_COOKIE_LEN] */
|
|
|
+ trunnel_assert(written <= avail);
|
|
|
+ if (avail - written < TRUNNEL_REND_COOKIE_LEN)
|
|
|
+ goto truncated;
|
|
|
+ memcpy(ptr, obj->rend_cookie, TRUNNEL_REND_COOKIE_LEN);
|
|
|
+ written += TRUNNEL_REND_COOKIE_LEN; ptr += TRUNNEL_REND_COOKIE_LEN;
|
|
|
+
|
|
|
+ /* Encode struct cell_extension extensions */
|
|
|
+ trunnel_assert(written <= avail);
|
|
|
+ result = cell_extension_encode(ptr, avail - written, obj->extensions);
|
|
|
+ if (result < 0)
|
|
|
+ goto fail; /* XXXXXXX !*/
|
|
|
+ written += result; ptr += result;
|
|
|
+
|
|
|
+ /* Encode u8 onion_key_type */
|
|
|
+ trunnel_assert(written <= avail);
|
|
|
+ if (avail - written < 1)
|
|
|
+ goto truncated;
|
|
|
+ trunnel_set_uint8(ptr, (obj->onion_key_type));
|
|
|
+ written += 1; ptr += 1;
|
|
|
+
|
|
|
+ /* Encode u16 onion_key_len */
|
|
|
+ trunnel_assert(written <= avail);
|
|
|
+ if (avail - written < 2)
|
|
|
+ goto truncated;
|
|
|
+ trunnel_set_uint16(ptr, trunnel_htons(obj->onion_key_len));
|
|
|
+ written += 2; ptr += 2;
|
|
|
+
|
|
|
+ /* Encode u8 onion_key[onion_key_len] */
|
|
|
+ {
|
|
|
+ size_t elt_len = TRUNNEL_DYNARRAY_LEN(&obj->onion_key);
|
|
|
+ trunnel_assert(obj->onion_key_len == elt_len);
|
|
|
+ trunnel_assert(written <= avail);
|
|
|
+ if (avail - written < elt_len)
|
|
|
+ goto truncated;
|
|
|
+ if (elt_len)
|
|
|
+ memcpy(ptr, obj->onion_key.elts_, elt_len);
|
|
|
+ written += elt_len; ptr += elt_len;
|
|
|
+ }
|
|
|
+
|
|
|
+ /* Encode u8 nspec */
|
|
|
+ trunnel_assert(written <= avail);
|
|
|
+ if (avail - written < 1)
|
|
|
+ goto truncated;
|
|
|
+ trunnel_set_uint8(ptr, (obj->nspec));
|
|
|
+ written += 1; ptr += 1;
|
|
|
+
|
|
|
+ /* Encode struct link_specifier nspecs[nspec] */
|
|
|
+ {
|
|
|
+
|
|
|
+ unsigned idx;
|
|
|
+ for (idx = 0; idx < TRUNNEL_DYNARRAY_LEN(&obj->nspecs); ++idx) {
|
|
|
+ trunnel_assert(written <= avail);
|
|
|
+ result = link_specifier_encode(ptr, avail - written, TRUNNEL_DYNARRAY_GET(&obj->nspecs, idx));
|
|
|
+ if (result < 0)
|
|
|
+ goto fail; /* XXXXXXX !*/
|
|
|
+ written += result; ptr += result;
|
|
|
+ }
|
|
|
+ }
|
|
|
+
|
|
|
+ /* Encode u8 pad[] */
|
|
|
+ {
|
|
|
+ size_t elt_len = TRUNNEL_DYNARRAY_LEN(&obj->pad);
|
|
|
+ trunnel_assert(written <= avail);
|
|
|
+ if (avail - written < elt_len)
|
|
|
+ goto truncated;
|
|
|
+ if (elt_len)
|
|
|
+ memcpy(ptr, obj->pad.elts_, elt_len);
|
|
|
+ written += elt_len; ptr += elt_len;
|
|
|
+ }
|
|
|
+
|
|
|
+
|
|
|
+ trunnel_assert(ptr == output + written);
|
|
|
+#ifdef TRUNNEL_CHECK_ENCODED_LEN
|
|
|
+ {
|
|
|
+ trunnel_assert(encoded_len >= 0);
|
|
|
+ trunnel_assert((size_t)encoded_len == written);
|
|
|
+ }
|
|
|
+
|
|
|
+#endif
|
|
|
+
|
|
|
+ return written;
|
|
|
+
|
|
|
+ truncated:
|
|
|
+ result = -2;
|
|
|
+ goto fail;
|
|
|
+ check_failed:
|
|
|
+ (void)msg;
|
|
|
+ result = -1;
|
|
|
+ goto fail;
|
|
|
+ fail:
|
|
|
+ trunnel_assert(result < 0);
|
|
|
+ return result;
|
|
|
+}
|
|
|
+
|
|
|
+/** As hs_cell_introduce_encrypted_parse(), but do not allocate the
|
|
|
+ * output object.
|
|
|
+ */
|
|
|
+static ssize_t
|
|
|
+hs_cell_introduce_encrypted_parse_into(hs_cell_introduce_encrypted_t *obj, const uint8_t *input, const size_t len_in)
|
|
|
+{
|
|
|
+ const uint8_t *ptr = input;
|
|
|
+ size_t remaining = len_in;
|
|
|
+ ssize_t result = 0;
|
|
|
+ (void)result;
|
|
|
+
|
|
|
+ /* Parse u8 rend_cookie[TRUNNEL_REND_COOKIE_LEN] */
|
|
|
+ CHECK_REMAINING(TRUNNEL_REND_COOKIE_LEN, truncated);
|
|
|
+ memcpy(obj->rend_cookie, ptr, TRUNNEL_REND_COOKIE_LEN);
|
|
|
+ remaining -= TRUNNEL_REND_COOKIE_LEN; ptr += TRUNNEL_REND_COOKIE_LEN;
|
|
|
+
|
|
|
+ /* Parse struct cell_extension extensions */
|
|
|
+ result = cell_extension_parse(&obj->extensions, ptr, remaining);
|
|
|
+ if (result < 0)
|
|
|
+ goto relay_fail;
|
|
|
+ trunnel_assert((size_t)result <= remaining);
|
|
|
+ remaining -= result; ptr += result;
|
|
|
+
|
|
|
+ /* Parse u8 onion_key_type */
|
|
|
+ CHECK_REMAINING(1, truncated);
|
|
|
+ obj->onion_key_type = (trunnel_get_uint8(ptr));
|
|
|
+ remaining -= 1; ptr += 1;
|
|
|
+
|
|
|
+ /* Parse u16 onion_key_len */
|
|
|
+ CHECK_REMAINING(2, truncated);
|
|
|
+ obj->onion_key_len = trunnel_ntohs(trunnel_get_uint16(ptr));
|
|
|
+ remaining -= 2; ptr += 2;
|
|
|
+
|
|
|
+ /* Parse u8 onion_key[onion_key_len] */
|
|
|
+ CHECK_REMAINING(obj->onion_key_len, truncated);
|
|
|
+ TRUNNEL_DYNARRAY_EXPAND(uint8_t, &obj->onion_key, obj->onion_key_len, {});
|
|
|
+ obj->onion_key.n_ = obj->onion_key_len;
|
|
|
+ if (obj->onion_key_len)
|
|
|
+ memcpy(obj->onion_key.elts_, ptr, obj->onion_key_len);
|
|
|
+ ptr += obj->onion_key_len; remaining -= obj->onion_key_len;
|
|
|
+
|
|
|
+ /* Parse u8 nspec */
|
|
|
+ CHECK_REMAINING(1, truncated);
|
|
|
+ obj->nspec = (trunnel_get_uint8(ptr));
|
|
|
+ remaining -= 1; ptr += 1;
|
|
|
+
|
|
|
+ /* Parse struct link_specifier nspecs[nspec] */
|
|
|
+ TRUNNEL_DYNARRAY_EXPAND(link_specifier_t *, &obj->nspecs, obj->nspec, {});
|
|
|
+ {
|
|
|
+ link_specifier_t * elt;
|
|
|
+ unsigned idx;
|
|
|
+ for (idx = 0; idx < obj->nspec; ++idx) {
|
|
|
+ result = link_specifier_parse(&elt, ptr, remaining);
|
|
|
+ if (result < 0)
|
|
|
+ goto relay_fail;
|
|
|
+ trunnel_assert((size_t)result <= remaining);
|
|
|
+ remaining -= result; ptr += result;
|
|
|
+ TRUNNEL_DYNARRAY_ADD(link_specifier_t *, &obj->nspecs, elt, {link_specifier_free(elt);});
|
|
|
+ }
|
|
|
+ }
|
|
|
+
|
|
|
+ /* Parse u8 pad[] */
|
|
|
+ TRUNNEL_DYNARRAY_EXPAND(uint8_t, &obj->pad, remaining, {});
|
|
|
+ obj->pad.n_ = remaining;
|
|
|
+ if (remaining)
|
|
|
+ memcpy(obj->pad.elts_, ptr, remaining);
|
|
|
+ ptr += remaining; remaining -= remaining;
|
|
|
+ trunnel_assert(ptr + remaining == input + len_in);
|
|
|
+ return len_in - remaining;
|
|
|
+
|
|
|
+ truncated:
|
|
|
+ return -2;
|
|
|
+ relay_fail:
|
|
|
+ trunnel_assert(result < 0);
|
|
|
+ return result;
|
|
|
+ trunnel_alloc_failed:
|
|
|
+ return -1;
|
|
|
+}
|
|
|
+
|
|
|
+ssize_t
|
|
|
+hs_cell_introduce_encrypted_parse(hs_cell_introduce_encrypted_t **output, const uint8_t *input, const size_t len_in)
|
|
|
+{
|
|
|
+ ssize_t result;
|
|
|
+ *output = hs_cell_introduce_encrypted_new();
|
|
|
+ if (NULL == *output)
|
|
|
+ return -1;
|
|
|
+ result = hs_cell_introduce_encrypted_parse_into(*output, input, len_in);
|
|
|
+ if (result < 0) {
|
|
|
+ hs_cell_introduce_encrypted_free(*output);
|
|
|
+ *output = NULL;
|
|
|
+ }
|
|
|
+ return result;
|
|
|
+}
|