Add macaroone implementation from
https://weave.googlesource.com/weave/libuweave
BUG:25934771
Change-Id: Iba87e709a51006f3e966b9942a375d1c31b2f17d
Reviewed-on: https://weave-review.googlesource.com/1804
Reviewed-by: Alex Vakulenko <avakulenko@google.com>
diff --git a/third_party/libuweave/src/macaroon_caveat.h b/third_party/libuweave/src/macaroon_caveat.h
new file mode 100644
index 0000000..5f2c384
--- /dev/null
+++ b/third_party/libuweave/src/macaroon_caveat.h
@@ -0,0 +1,51 @@
+// Copyright 2015 The Weave Authors. All rights reserved.
+// Use of this source code is governed by a BSD-style license that can be
+// found in the LICENSE file.
+
+#ifndef LIBUWEAVE_SRC_MACAROON_CAVEAT_H_
+#define LIBUWEAVE_SRC_MACAROON_CAVEAT_H_
+
+#include <stdbool.h>
+#include <stddef.h>
+#include <stdint.h>
+
+typedef struct {
+ size_t num_bytes;
+ const uint8_t* bytes;
+} UwMacaroonCaveat;
+
+typedef enum {
+ kUwMacaroonCaveatTypeStop = 0,
+ kUwMacaroonCaveatTypeScope = 1,
+ kUwMacaroonCaveatTypeIdentifier = 2,
+ kUwMacaroonCaveatTypeIssued = 3,
+ kUwMacaroonCaveatTypeTTL = 4,
+ kUwMacaroonCaveatTypeExpiration = 5,
+ kUwMacaroonCaveatTypeSessionIdentifier = 16
+} UwMacaroonCaveatType;
+
+bool uw_macaroon_caveat_create_without_value_(UwMacaroonCaveatType type,
+ uint8_t* buffer,
+ size_t buffer_size,
+ UwMacaroonCaveat* new_caveat);
+bool uw_macaroon_caveat_create_with_uint_(UwMacaroonCaveatType type,
+ uint32_t value, uint8_t* buffer,
+ size_t buffer_size,
+ UwMacaroonCaveat* new_caveat);
+bool uw_macaroon_caveat_create_with_str_(UwMacaroonCaveatType type,
+ const uint8_t* str, size_t str_len,
+ uint8_t* buffer, size_t buffer_size,
+ UwMacaroonCaveat* new_caveat);
+
+bool uw_macaroon_caveat_get_type_(const UwMacaroonCaveat* caveat,
+ UwMacaroonCaveatType* type);
+bool uw_macaroon_caveat_get_value_uint_(const UwMacaroonCaveat* caveat,
+ uint32_t* unsigned_int);
+bool uw_macaroon_caveat_get_value_str_(const UwMacaroonCaveat* caveat,
+ const uint8_t** str, size_t* str_len);
+
+bool uw_macaroon_caveat_sign_(const uint8_t* key, size_t key_len,
+ const UwMacaroonCaveat* caveat, uint8_t* mac_tag,
+ size_t mac_tag_size);
+
+#endif // LIBUWEAVE_SRC_MACAROON_CAVEAT_H_
