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-rw-r--r--src/trunnel/circpad_negotiation.c549
1 files changed, 549 insertions, 0 deletions
diff --git a/src/trunnel/circpad_negotiation.c b/src/trunnel/circpad_negotiation.c
new file mode 100644
index 0000000000..547818f2ec
--- /dev/null
+++ b/src/trunnel/circpad_negotiation.c
@@ -0,0 +1,549 @@
+/* circpad_negotiation.c -- generated by Trunnel v1.5.3.
+ * https://gitweb.torproject.org/trunnel.git
+ * You probably shouldn't edit this file.
+ */
+#include <stdlib.h>
+#include "trunnel-impl.h"
+
+#include "circpad_negotiation.h"
+
+#define TRUNNEL_SET_ERROR_CODE(obj) \
+ do { \
+ (obj)->trunnel_error_code_ = 1; \
+ } while (0)
+
+#if defined(__COVERITY__) || defined(__clang_analyzer__)
+/* If we're running a static analysis tool, we don't want it to complain
+ * that some of our remaining-bytes checks are dead-code. */
+int circpadnegotiation_deadcode_dummy__ = 0;
+#define OR_DEADCODE_DUMMY || circpadnegotiation_deadcode_dummy__
+#else
+#define OR_DEADCODE_DUMMY
+#endif
+
+#define CHECK_REMAINING(nbytes, label) \
+ do { \
+ if (remaining < (nbytes) OR_DEADCODE_DUMMY) { \
+ goto label; \
+ } \
+ } while (0)
+
+circpad_negotiate_t *
+circpad_negotiate_new(void)
+{
+ circpad_negotiate_t *val = trunnel_calloc(1, sizeof(circpad_negotiate_t));
+ if (NULL == val)
+ return NULL;
+ val->command = CIRCPAD_COMMAND_START;
+ return val;
+}
+
+/** Release all storage held inside 'obj', but do not free 'obj'.
+ */
+static void
+circpad_negotiate_clear(circpad_negotiate_t *obj)
+{
+ (void) obj;
+}
+
+void
+circpad_negotiate_free(circpad_negotiate_t *obj)
+{
+ if (obj == NULL)
+ return;
+ circpad_negotiate_clear(obj);
+ trunnel_memwipe(obj, sizeof(circpad_negotiate_t));
+ trunnel_free_(obj);
+}
+
+uint8_t
+circpad_negotiate_get_version(const circpad_negotiate_t *inp)
+{
+ return inp->version;
+}
+int
+circpad_negotiate_set_version(circpad_negotiate_t *inp, uint8_t val)
+{
+ if (! ((val == 0))) {
+ TRUNNEL_SET_ERROR_CODE(inp);
+ return -1;
+ }
+ inp->version = val;
+ return 0;
+}
+uint8_t
+circpad_negotiate_get_command(const circpad_negotiate_t *inp)
+{
+ return inp->command;
+}
+int
+circpad_negotiate_set_command(circpad_negotiate_t *inp, uint8_t val)
+{
+ if (! ((val == CIRCPAD_COMMAND_START || val == CIRCPAD_COMMAND_STOP))) {
+ TRUNNEL_SET_ERROR_CODE(inp);
+ return -1;
+ }
+ inp->command = val;
+ return 0;
+}
+uint8_t
+circpad_negotiate_get_machine_type(const circpad_negotiate_t *inp)
+{
+ return inp->machine_type;
+}
+int
+circpad_negotiate_set_machine_type(circpad_negotiate_t *inp, uint8_t val)
+{
+ inp->machine_type = val;
+ return 0;
+}
+uint8_t
+circpad_negotiate_get_echo_request(const circpad_negotiate_t *inp)
+{
+ return inp->echo_request;
+}
+int
+circpad_negotiate_set_echo_request(circpad_negotiate_t *inp, uint8_t val)
+{
+ if (! ((val == 0 || val == 1))) {
+ TRUNNEL_SET_ERROR_CODE(inp);
+ return -1;
+ }
+ inp->echo_request = val;
+ return 0;
+}
+const char *
+circpad_negotiate_check(const circpad_negotiate_t *obj)
+{
+ if (obj == NULL)
+ return "Object was NULL";
+ if (obj->trunnel_error_code_)
+ return "A set function failed on this object";
+ if (! (obj->version == 0))
+ return "Integer out of bounds";
+ if (! (obj->command == CIRCPAD_COMMAND_START || obj->command == CIRCPAD_COMMAND_STOP))
+ return "Integer out of bounds";
+ if (! (obj->echo_request == 0 || obj->echo_request == 1))
+ return "Integer out of bounds";
+ return NULL;
+}
+
+ssize_t
+circpad_negotiate_encoded_len(const circpad_negotiate_t *obj)
+{
+ ssize_t result = 0;
+
+ if (NULL != circpad_negotiate_check(obj))
+ return -1;
+
+
+ /* Length of u8 version IN [0] */
+ result += 1;
+
+ /* Length of u8 command IN [CIRCPAD_COMMAND_START, CIRCPAD_COMMAND_STOP] */
+ result += 1;
+
+ /* Length of u8 machine_type */
+ result += 1;
+
+ /* Length of u8 echo_request IN [0, 1] */
+ result += 1;
+ return result;
+}
+int
+circpad_negotiate_clear_errors(circpad_negotiate_t *obj)
+{
+ int r = obj->trunnel_error_code_;
+ obj->trunnel_error_code_ = 0;
+ return r;
+}
+ssize_t
+circpad_negotiate_encode(uint8_t *output, const size_t avail, const circpad_negotiate_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 = circpad_negotiate_encoded_len(obj);
+#endif
+
+ if (NULL != (msg = circpad_negotiate_check(obj)))
+ goto check_failed;
+
+#ifdef TRUNNEL_CHECK_ENCODED_LEN
+ trunnel_assert(encoded_len >= 0);
+#endif
+
+ /* Encode u8 version IN [0] */
+ trunnel_assert(written <= avail);
+ if (avail - written < 1)
+ goto truncated;
+ trunnel_set_uint8(ptr, (obj->version));
+ written += 1; ptr += 1;
+
+ /* Encode u8 command IN [CIRCPAD_COMMAND_START, CIRCPAD_COMMAND_STOP] */
+ trunnel_assert(written <= avail);
+ if (avail - written < 1)
+ goto truncated;
+ trunnel_set_uint8(ptr, (obj->command));
+ written += 1; ptr += 1;
+
+ /* Encode u8 machine_type */
+ trunnel_assert(written <= avail);
+ if (avail - written < 1)
+ goto truncated;
+ trunnel_set_uint8(ptr, (obj->machine_type));
+ written += 1; ptr += 1;
+
+ /* Encode u8 echo_request IN [0, 1] */
+ trunnel_assert(written <= avail);
+ if (avail - written < 1)
+ goto truncated;
+ trunnel_set_uint8(ptr, (obj->echo_request));
+ written += 1; ptr += 1;
+
+
+ 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 circpad_negotiate_parse(), but do not allocate the output
+ * object.
+ */
+static ssize_t
+circpad_negotiate_parse_into(circpad_negotiate_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 version IN [0] */
+ CHECK_REMAINING(1, truncated);
+ obj->version = (trunnel_get_uint8(ptr));
+ remaining -= 1; ptr += 1;
+ if (! (obj->version == 0))
+ goto fail;
+
+ /* Parse u8 command IN [CIRCPAD_COMMAND_START, CIRCPAD_COMMAND_STOP] */
+ CHECK_REMAINING(1, truncated);
+ obj->command = (trunnel_get_uint8(ptr));
+ remaining -= 1; ptr += 1;
+ if (! (obj->command == CIRCPAD_COMMAND_START || obj->command == CIRCPAD_COMMAND_STOP))
+ goto fail;
+
+ /* Parse u8 machine_type */
+ CHECK_REMAINING(1, truncated);
+ obj->machine_type = (trunnel_get_uint8(ptr));
+ remaining -= 1; ptr += 1;
+
+ /* Parse u8 echo_request IN [0, 1] */
+ CHECK_REMAINING(1, truncated);
+ obj->echo_request = (trunnel_get_uint8(ptr));
+ remaining -= 1; ptr += 1;
+ if (! (obj->echo_request == 0 || obj->echo_request == 1))
+ goto fail;
+ trunnel_assert(ptr + remaining == input + len_in);
+ return len_in - remaining;
+
+ truncated:
+ return -2;
+ fail:
+ result = -1;
+ return result;
+}
+
+ssize_t
+circpad_negotiate_parse(circpad_negotiate_t **output, const uint8_t *input, const size_t len_in)
+{
+ ssize_t result;
+ *output = circpad_negotiate_new();
+ if (NULL == *output)
+ return -1;
+ result = circpad_negotiate_parse_into(*output, input, len_in);
+ if (result < 0) {
+ circpad_negotiate_free(*output);
+ *output = NULL;
+ }
+ return result;
+}
+circpad_negotiated_t *
+circpad_negotiated_new(void)
+{
+ circpad_negotiated_t *val = trunnel_calloc(1, sizeof(circpad_negotiated_t));
+ if (NULL == val)
+ return NULL;
+ val->command = CIRCPAD_COMMAND_START;
+ val->response = CIRCPAD_RESPONSE_ERR;
+ return val;
+}
+
+/** Release all storage held inside 'obj', but do not free 'obj'.
+ */
+static void
+circpad_negotiated_clear(circpad_negotiated_t *obj)
+{
+ (void) obj;
+}
+
+void
+circpad_negotiated_free(circpad_negotiated_t *obj)
+{
+ if (obj == NULL)
+ return;
+ circpad_negotiated_clear(obj);
+ trunnel_memwipe(obj, sizeof(circpad_negotiated_t));
+ trunnel_free_(obj);
+}
+
+uint8_t
+circpad_negotiated_get_version(const circpad_negotiated_t *inp)
+{
+ return inp->version;
+}
+int
+circpad_negotiated_set_version(circpad_negotiated_t *inp, uint8_t val)
+{
+ if (! ((val == 0))) {
+ TRUNNEL_SET_ERROR_CODE(inp);
+ return -1;
+ }
+ inp->version = val;
+ return 0;
+}
+uint8_t
+circpad_negotiated_get_command(const circpad_negotiated_t *inp)
+{
+ return inp->command;
+}
+int
+circpad_negotiated_set_command(circpad_negotiated_t *inp, uint8_t val)
+{
+ if (! ((val == CIRCPAD_COMMAND_START || val == CIRCPAD_COMMAND_STOP))) {
+ TRUNNEL_SET_ERROR_CODE(inp);
+ return -1;
+ }
+ inp->command = val;
+ return 0;
+}
+uint8_t
+circpad_negotiated_get_response(const circpad_negotiated_t *inp)
+{
+ return inp->response;
+}
+int
+circpad_negotiated_set_response(circpad_negotiated_t *inp, uint8_t val)
+{
+ if (! ((val == CIRCPAD_RESPONSE_ERR || val == CIRCPAD_RESPONSE_OK))) {
+ TRUNNEL_SET_ERROR_CODE(inp);
+ return -1;
+ }
+ inp->response = val;
+ return 0;
+}
+uint8_t
+circpad_negotiated_get_machine_type(const circpad_negotiated_t *inp)
+{
+ return inp->machine_type;
+}
+int
+circpad_negotiated_set_machine_type(circpad_negotiated_t *inp, uint8_t val)
+{
+ inp->machine_type = val;
+ return 0;
+}
+const char *
+circpad_negotiated_check(const circpad_negotiated_t *obj)
+{
+ if (obj == NULL)
+ return "Object was NULL";
+ if (obj->trunnel_error_code_)
+ return "A set function failed on this object";
+ if (! (obj->version == 0))
+ return "Integer out of bounds";
+ if (! (obj->command == CIRCPAD_COMMAND_START || obj->command == CIRCPAD_COMMAND_STOP))
+ return "Integer out of bounds";
+ if (! (obj->response == CIRCPAD_RESPONSE_ERR || obj->response == CIRCPAD_RESPONSE_OK))
+ return "Integer out of bounds";
+ return NULL;
+}
+
+ssize_t
+circpad_negotiated_encoded_len(const circpad_negotiated_t *obj)
+{
+ ssize_t result = 0;
+
+ if (NULL != circpad_negotiated_check(obj))
+ return -1;
+
+
+ /* Length of u8 version IN [0] */
+ result += 1;
+
+ /* Length of u8 command IN [CIRCPAD_COMMAND_START, CIRCPAD_COMMAND_STOP] */
+ result += 1;
+
+ /* Length of u8 response IN [CIRCPAD_RESPONSE_ERR, CIRCPAD_RESPONSE_OK] */
+ result += 1;
+
+ /* Length of u8 machine_type */
+ result += 1;
+ return result;
+}
+int
+circpad_negotiated_clear_errors(circpad_negotiated_t *obj)
+{
+ int r = obj->trunnel_error_code_;
+ obj->trunnel_error_code_ = 0;
+ return r;
+}
+ssize_t
+circpad_negotiated_encode(uint8_t *output, const size_t avail, const circpad_negotiated_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 = circpad_negotiated_encoded_len(obj);
+#endif
+
+ if (NULL != (msg = circpad_negotiated_check(obj)))
+ goto check_failed;
+
+#ifdef TRUNNEL_CHECK_ENCODED_LEN
+ trunnel_assert(encoded_len >= 0);
+#endif
+
+ /* Encode u8 version IN [0] */
+ trunnel_assert(written <= avail);
+ if (avail - written < 1)
+ goto truncated;
+ trunnel_set_uint8(ptr, (obj->version));
+ written += 1; ptr += 1;
+
+ /* Encode u8 command IN [CIRCPAD_COMMAND_START, CIRCPAD_COMMAND_STOP] */
+ trunnel_assert(written <= avail);
+ if (avail - written < 1)
+ goto truncated;
+ trunnel_set_uint8(ptr, (obj->command));
+ written += 1; ptr += 1;
+
+ /* Encode u8 response IN [CIRCPAD_RESPONSE_ERR, CIRCPAD_RESPONSE_OK] */
+ trunnel_assert(written <= avail);
+ if (avail - written < 1)
+ goto truncated;
+ trunnel_set_uint8(ptr, (obj->response));
+ written += 1; ptr += 1;
+
+ /* Encode u8 machine_type */
+ trunnel_assert(written <= avail);
+ if (avail - written < 1)
+ goto truncated;
+ trunnel_set_uint8(ptr, (obj->machine_type));
+ written += 1; ptr += 1;
+
+
+ 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 circpad_negotiated_parse(), but do not allocate the output
+ * object.
+ */
+static ssize_t
+circpad_negotiated_parse_into(circpad_negotiated_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 version IN [0] */
+ CHECK_REMAINING(1, truncated);
+ obj->version = (trunnel_get_uint8(ptr));
+ remaining -= 1; ptr += 1;
+ if (! (obj->version == 0))
+ goto fail;
+
+ /* Parse u8 command IN [CIRCPAD_COMMAND_START, CIRCPAD_COMMAND_STOP] */
+ CHECK_REMAINING(1, truncated);
+ obj->command = (trunnel_get_uint8(ptr));
+ remaining -= 1; ptr += 1;
+ if (! (obj->command == CIRCPAD_COMMAND_START || obj->command == CIRCPAD_COMMAND_STOP))
+ goto fail;
+
+ /* Parse u8 response IN [CIRCPAD_RESPONSE_ERR, CIRCPAD_RESPONSE_OK] */
+ CHECK_REMAINING(1, truncated);
+ obj->response = (trunnel_get_uint8(ptr));
+ remaining -= 1; ptr += 1;
+ if (! (obj->response == CIRCPAD_RESPONSE_ERR || obj->response == CIRCPAD_RESPONSE_OK))
+ goto fail;
+
+ /* Parse u8 machine_type */
+ CHECK_REMAINING(1, truncated);
+ obj->machine_type = (trunnel_get_uint8(ptr));
+ remaining -= 1; ptr += 1;
+ trunnel_assert(ptr + remaining == input + len_in);
+ return len_in - remaining;
+
+ truncated:
+ return -2;
+ fail:
+ result = -1;
+ return result;
+}
+
+ssize_t
+circpad_negotiated_parse(circpad_negotiated_t **output, const uint8_t *input, const size_t len_in)
+{
+ ssize_t result;
+ *output = circpad_negotiated_new();
+ if (NULL == *output)
+ return -1;
+ result = circpad_negotiated_parse_into(*output, input, len_in);
+ if (result < 0) {
+ circpad_negotiated_free(*output);
+ *output = NULL;
+ }
+ return result;
+}
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