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| </pre><pre class="rust"><code><span class="comment">// Licensed to the Apache Software Foundation (ASF) under one |
| // or more contributor license agreements. See the NOTICE file |
| // distributed with this work for additional information |
| // regarding copyright ownership. The ASF licenses this file |
| // to you under the Apache License, Version 2.0 (the |
| // "License"); you may not use this file except in compliance |
| // with the License. You may obtain a copy of the License at |
| // |
| // http://www.apache.org/licenses/LICENSE-2.0 |
| // |
| // Unless required by applicable law or agreed to in writing, |
| // software distributed under the License is distributed on an |
| // "AS IS" BASIS, WITHOUT WARRANTIES OR CONDITIONS OF ANY |
| // KIND, either express or implied. See the License for the |
| // specific language governing permissions and limitations |
| // under the License. |
| |
| </span><span class="kw">use </span>teaclave_crypto::TeaclaveFile128Key; |
| |
| <span class="kw">use </span>std::collections::HashMap; |
| <span class="attribute">#[cfg(not(feature = <span class="string">"mesalock_sgx"</span>))] |
| </span><span class="kw">use </span>std::fs::File; |
| <span class="kw">use </span>std::io::{<span class="self">self</span>, BufRead, BufReader, Read, Write}; |
| <span class="kw">use </span>std::path::{Path, PathBuf}; |
| <span class="attribute">#[cfg(feature = <span class="string">"mesalock_sgx"</span>)] |
| </span><span class="kw">use </span>std::untrusted::fs::File; |
| |
| <span class="kw">use </span><span class="kw">crate</span>::FileAuthTag; |
| <span class="kw">use </span><span class="kw">crate</span>::FileCrypto; |
| <span class="kw">use </span>anyhow::Context; |
| <span class="kw">use </span>sgx_tprotected_fs::SgxFile; |
| |
| <span class="attribute">#[derive(Clone, Debug, Default)] |
| </span><span class="kw">pub struct </span>StagedFileInfo { |
| <span class="kw">pub </span>path: PathBuf, |
| <span class="kw">pub </span>crypto_info: TeaclaveFile128Key, |
| <span class="kw">pub </span>cmac: FileAuthTag, |
| } |
| |
| <span class="kw">impl </span>StagedFileInfo { |
| <span class="kw">pub fn </span>new( |
| path: <span class="kw">impl </span>AsRef<Path>, |
| crypto_info: TeaclaveFile128Key, |
| cmac: <span class="kw">impl </span>Into<FileAuthTag>, |
| ) -> <span class="self">Self </span>{ |
| StagedFileInfo { |
| path: path.as_ref().into(), |
| crypto_info, |
| cmac: cmac.into(), |
| } |
| } |
| |
| <span class="kw">pub fn </span>create_readable_io(<span class="kw-2">&</span><span class="self">self</span>) -> anyhow::Result<Box<<span class="kw">dyn </span>io::Read>> { |
| <span class="kw">let </span>f = SgxFile::open_with_key(<span class="kw-2">&</span><span class="self">self</span>.path, <span class="self">self</span>.crypto_info.key)<span class="question-mark">?</span>; |
| <span class="kw">let </span>tag = f |
| .get_mac() |
| .context(<span class="string">"Failed to get gmac from protected file"</span>)<span class="question-mark">?</span>; |
| <span class="macro">anyhow::ensure!</span>(<span class="self">self</span>.cmac == tag, <span class="string">"Corrupted input file: {:?}"</span>, <span class="self">self</span>.path); |
| <span class="prelude-val">Ok</span>(Box::new(f)) |
| } |
| |
| <span class="kw">pub fn </span>create_writable_io(<span class="kw-2">&</span><span class="self">self</span>) -> anyhow::Result<Box<<span class="kw">dyn </span>io::Write>> { |
| <span class="kw">let </span>f = SgxFile::create_with_key(<span class="kw-2">&</span><span class="self">self</span>.path, <span class="self">self</span>.crypto_info.key)<span class="question-mark">?</span>; |
| <span class="prelude-val">Ok</span>(Box::new(f)) |
| } |
| |
| <span class="kw">pub fn </span>convert_for_uploading( |
| <span class="kw-2">&</span><span class="self">self</span>, |
| dst: <span class="kw">impl </span>AsRef<Path>, |
| crypto_info: FileCrypto, |
| ) -> anyhow::Result<FileAuthTag> { |
| <span class="kw">match </span>crypto_info { |
| FileCrypto::TeaclaveFile128(cipher) => { |
| <span class="self">self</span>.convert_to_teaclave_file(dst, cipher.to_owned()) |
| } |
| FileCrypto::AesGcm128(cipher) => { |
| <span class="kw">let </span><span class="kw-2">mut </span>src_file = SgxFile::open_with_key(<span class="kw-2">&</span><span class="self">self</span>.path, <span class="self">self</span>.crypto_info.key) |
| .context(<span class="string">"Convert aes-gcm-128: failed to open src file"</span>)<span class="question-mark">?</span>; |
| <span class="kw">let </span><span class="kw-2">mut </span>buffer = Vec::new(); |
| src_file.read_to_end(<span class="kw-2">&mut </span>buffer)<span class="question-mark">?</span>; |
| <span class="kw">let </span>cmac = cipher.encrypt(<span class="kw-2">&mut </span>buffer)<span class="question-mark">?</span>; |
| <span class="kw">let </span><span class="kw-2">mut </span>file = File::create(dst)<span class="question-mark">?</span>; |
| file.write_all(<span class="kw-2">&</span>buffer)<span class="question-mark">?</span>; |
| FileAuthTag::from_bytes(<span class="kw-2">&</span>cmac) |
| } |
| FileCrypto::AesGcm256(cipher) => { |
| <span class="kw">let </span><span class="kw-2">mut </span>src_file = SgxFile::open_with_key(<span class="kw-2">&</span><span class="self">self</span>.path, <span class="self">self</span>.crypto_info.key) |
| .context(<span class="string">"Convert aes-gcm-256: failed to open src file"</span>)<span class="question-mark">?</span>; |
| <span class="kw">let </span><span class="kw-2">mut </span>buffer = Vec::new(); |
| src_file.read_to_end(<span class="kw-2">&mut </span>buffer)<span class="question-mark">?</span>; |
| <span class="kw">let </span>cmac = cipher.encrypt(<span class="kw-2">&mut </span>buffer)<span class="question-mark">?</span>; |
| <span class="kw">let </span><span class="kw-2">mut </span>file = File::create(dst)<span class="question-mark">?</span>; |
| file.write_all(<span class="kw-2">&</span>buffer)<span class="question-mark">?</span>; |
| FileAuthTag::from_bytes(<span class="kw-2">&</span>cmac) |
| } |
| FileCrypto::Raw => <span class="macro">anyhow::bail!</span>(<span class="string">"OutputFile: unsupported type"</span>), |
| } |
| } |
| |
| <span class="kw">pub fn </span>convert_to_teaclave_file( |
| <span class="kw-2">&</span><span class="self">self</span>, |
| dst: <span class="kw">impl </span>AsRef<Path>, |
| crypto: TeaclaveFile128Key, |
| ) -> anyhow::Result<FileAuthTag> { |
| <span class="kw">let </span>src_file = SgxFile::open_with_key(<span class="kw-2">&</span><span class="self">self</span>.path, <span class="self">self</span>.crypto_info.key) |
| .context(<span class="string">"Convert teaclave_file: failed to open src file"</span>)<span class="question-mark">?</span>; |
| <span class="kw">let </span><span class="kw-2">mut </span>dest_file = SgxFile::create_with_key(dst.as_ref(), crypto.key) |
| .context(<span class="string">"Convert teaclave_file: failed to create dst file"</span>)<span class="question-mark">?</span>; |
| |
| <span class="kw">let </span><span class="kw-2">mut </span>reader = BufReader::with_capacity(<span class="number">4096</span>, src_file); |
| <span class="kw">loop </span>{ |
| <span class="kw">let </span>buffer = reader.fill_buf()<span class="question-mark">?</span>; |
| <span class="kw">let </span>rd_len = buffer.len(); |
| <span class="kw">if </span>rd_len == <span class="number">0 </span>{ |
| <span class="kw">break</span>; |
| } |
| <span class="kw">let </span>wt_len = dest_file.write(buffer)<span class="question-mark">?</span>; |
| <span class="macro">anyhow::ensure!</span>( |
| rd_len == wt_len, |
| <span class="string">"Cannot fully write to dest file: Rd({:?}) != Wt({:?})"</span>, |
| rd_len, |
| wt_len |
| ); |
| reader.consume(rd_len); |
| } |
| dest_file |
| .flush() |
| .context(<span class="string">"Convert teaclave_file: dst_file flush failed"</span>)<span class="question-mark">?</span>; |
| <span class="kw">let </span>mac = dest_file |
| .get_mac() |
| .context(<span class="string">"Convert teaclave_file: cannot get dst_file gmac"</span>)<span class="question-mark">?</span>; |
| FileAuthTag::from_bytes(<span class="kw-2">&</span>mac) |
| } |
| |
| <span class="attribute">#[cfg(test_mode)] |
| </span><span class="kw">pub fn </span>create_with_plaintext_file(path: <span class="kw">impl </span>AsRef<Path>) -> anyhow::Result<StagedFileInfo> { |
| <span class="kw">let </span>bytes = read_all_bytes(path.as_ref())<span class="question-mark">?</span>; |
| <span class="kw">let </span>dst = path.as_ref().with_extension(<span class="string">"test_enc"</span>); |
| <span class="self">Self</span>::create_with_bytes(dst, <span class="kw-2">&</span>bytes) |
| } |
| |
| <span class="attribute">#[cfg(test_mode)] |
| </span><span class="kw">pub fn </span>get_plaintext(<span class="kw-2">&</span><span class="self">self</span>) -> anyhow::Result<Vec<u8>> { |
| <span class="kw">let </span><span class="kw-2">mut </span>content = Vec::new(); |
| <span class="kw">let </span><span class="kw-2">mut </span>f = SgxFile::open_with_key(<span class="kw-2">&</span><span class="self">self</span>.path, <span class="self">self</span>.crypto_info.key)<span class="question-mark">?</span>; |
| f.read_to_end(<span class="kw-2">&mut </span>content)<span class="question-mark">?</span>; |
| <span class="prelude-val">Ok</span>(content) |
| } |
| |
| <span class="kw">pub fn </span>create_with_bytes( |
| path: <span class="kw">impl </span>AsRef<Path>, |
| bytes: <span class="kw-2">&</span>[u8], |
| ) -> anyhow::Result<StagedFileInfo> { |
| <span class="kw">let </span>crypto = TeaclaveFile128Key::random(); |
| <span class="kw">let </span><span class="kw-2">mut </span>f = SgxFile::create_with_key(<span class="kw-2">&</span>path, crypto.key)<span class="question-mark">?</span>; |
| f.write_all(bytes)<span class="question-mark">?</span>; |
| f.flush()<span class="question-mark">?</span>; |
| <span class="kw">let </span>tag = f.get_mac()<span class="question-mark">?</span>; |
| <span class="prelude-val">Ok</span>(<span class="self">Self</span>::new(path.as_ref(), crypto, tag)) |
| } |
| } |
| |
| <span class="kw">pub fn </span>read_all_bytes(path: <span class="kw">impl </span>AsRef<Path>) -> anyhow::Result<Vec<u8>> { |
| <span class="kw">let </span><span class="kw-2">mut </span>content = Vec::new(); |
| <span class="kw">let </span><span class="kw-2">mut </span>file = File::open(path)<span class="question-mark">?</span>; |
| file.read_to_end(<span class="kw-2">&mut </span>content)<span class="question-mark">?</span>; |
| <span class="prelude-val">Ok</span>(content) |
| } |
| |
| <span class="attribute">#[derive(Debug, Default, Clone)] |
| </span><span class="kw">pub struct </span>StagedFiles { |
| entries: HashMap<String, StagedFileInfo>, |
| } |
| |
| <span class="kw">impl </span>StagedFiles { |
| <span class="kw">pub fn </span>new(entries: HashMap<String, StagedFileInfo>) -> <span class="self">Self </span>{ |
| StagedFiles { entries } |
| } |
| |
| <span class="kw">pub fn </span>get(<span class="kw-2">&</span><span class="self">self</span>, key: <span class="kw-2">&</span>str) -> <span class="prelude-ty">Option</span><<span class="kw-2">&</span>StagedFileInfo> { |
| <span class="self">self</span>.entries.get(key) |
| } |
| |
| <span class="kw">pub fn </span>len(<span class="kw-2">&</span><span class="self">self</span>) -> usize { |
| <span class="self">self</span>.entries.len() |
| } |
| |
| <span class="kw">pub fn </span>is_empty(<span class="kw-2">&</span><span class="self">self</span>) -> bool { |
| <span class="self">self</span>.len() == <span class="number">0 |
| </span>} |
| } |
| |
| <span class="kw">impl </span>std::iter::FromIterator<(String, StagedFileInfo)> <span class="kw">for </span>StagedFiles { |
| <span class="kw">fn </span>from_iter<T: IntoIterator<Item = (String, StagedFileInfo)>>(iter: T) -> <span class="self">Self </span>{ |
| StagedFiles { |
| entries: HashMap::from_iter(iter), |
| } |
| } |
| } |
| </code></pre></div> |
| </section></div></main><div id="rustdoc-vars" data-root-path="../../" data-current-crate="teaclave_types" data-themes="ayu,dark,light" data-resource-suffix="" data-rustdoc-version="1.66.0-nightly (5c8bff74b 2022-10-21)" ></div></body></html> |
