David Benjamin
30b7a01dd4
This reflects some assumptions we have on our headers: - <openssl/foo.h> pulls in <openssl/base.h>. In particular, the canonical FOO typedefs for foo_st all live forward declared in <opessl/base.h>, but including <openssl/foo.h> is sufficient to use FOO. - <openssl/base.h> pulls in <stdint.h> and <stddef.h> so we don't have to keep including it. Add IWYU exports to reflect this so that clang's include cleaner gets less upset. It's a bit of a blunt instrument because it also means that <openssl/foo.h> lets you use the forward-declared BAR typedef, and downstream projects might still prefer to explicit include <stdint.h> when they use it (we use it so much that it would be too much), but I think this is fine. NB: By adding these, we're essentially promising we won't include those transitive includes because downstream code might accidentally start relying on it. Change-Id: I705fe6d1026fbd302ed0f070a0cf7658a70af8ef Reviewed-on: https://boringssl-review.googlesource.com/c/boringssl/+/77687 Reviewed-by: Bob Beck <bbe@google.com> Commit-Queue: David Benjamin <davidben@google.com>
50 lines
1.8 KiB
C
50 lines
1.8 KiB
C
// Copyright 2014 The BoringSSL Authors
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//
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// Licensed under the Apache License, Version 2.0 (the "License");
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// you may not use this file except in compliance with the License.
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// You may obtain a copy of the License at
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//
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// https://www.apache.org/licenses/LICENSE-2.0
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//
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// Unless required by applicable law or agreed to in writing, software
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// distributed under the License is distributed on an "AS IS" BASIS,
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// WITHOUT WARRANTIES OR CONDITIONS OF ANY KIND, either express or implied.
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// See the License for the specific language governing permissions and
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// limitations under the License.
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#ifndef OPENSSL_HEADER_POLY1305_H
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#define OPENSSL_HEADER_POLY1305_H
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#include <openssl/base.h> // IWYU pragma: export
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#ifdef __cplusplus
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extern "C" {
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#endif
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typedef uint8_t poly1305_state[512];
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// CRYPTO_poly1305_init sets up |state| so that it can be used to calculate an
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// authentication tag with the one-time key |key|. Note that |key| is a
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// one-time key and therefore there is no `reset' method because that would
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// enable several messages to be authenticated with the same key.
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OPENSSL_EXPORT void CRYPTO_poly1305_init(poly1305_state *state,
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const uint8_t key[32]);
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// CRYPTO_poly1305_update processes |in_len| bytes from |in|. It can be called
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// zero or more times after poly1305_init.
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OPENSSL_EXPORT void CRYPTO_poly1305_update(poly1305_state *state,
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const uint8_t *in, size_t in_len);
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// CRYPTO_poly1305_finish completes the poly1305 calculation and writes a 16
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// byte authentication tag to |mac|.
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OPENSSL_EXPORT void CRYPTO_poly1305_finish(poly1305_state *state,
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uint8_t mac[16]);
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#if defined(__cplusplus)
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} // extern C
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#endif
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#endif // OPENSSL_HEADER_POLY1305_H
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