mirror of
https://github.com/s3fs-fuse/s3fs-fuse.git
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Convert fixed-size allocations to C++11 std::array (#2242)
This is safer and more efficient.
This commit is contained in:
Andrew Gaul
GitHub
parent
b29f8d0f2b
commit
b5c3fc0a08
@ -29,18 +29,16 @@
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//-------------------------------------------------------------------
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std::string s3fs_get_content_md5(int fd)
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{
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unsigned char* md5;
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md5_t md5;
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char* base64;
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std::string Signature;
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if(nullptr == (md5 = s3fs_md5_fd(fd, 0, -1))){
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if(!s3fs_md5_fd(fd, 0, -1, &md5)){
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return std::string("");
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}
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if(nullptr == (base64 = s3fs_base64(md5, get_md5_digest_length()))){
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delete[] md5;
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if(nullptr == (base64 = s3fs_base64(md5.data(), md5.size()))){
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return std::string(""); // ENOMEM
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}
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delete[] md5;
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Signature = base64;
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delete[] base64;
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@ -50,15 +48,13 @@ std::string s3fs_get_content_md5(int fd)
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std::string s3fs_sha256_hex_fd(int fd, off_t start, off_t size)
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{
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size_t digestlen = get_sha256_digest_length();
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unsigned char* sha256;
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sha256_t sha256;
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if(nullptr == (sha256 = s3fs_sha256_fd(fd, start, size))){
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if(!s3fs_sha256_fd(fd, start, size, &sha256)){
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return std::string("");
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}
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std::string sha256hex = s3fs_hex_lower(sha256, digestlen);
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delete[] sha256;
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std::string sha256hex = s3fs_hex_lower(sha256.data(), sha256.size());
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return sha256hex;
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}
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27
src/curl.cpp
27
src/curl.cpp
@ -2808,8 +2808,8 @@ std::string S3fsCurl::CalcSignature(const std::string& method, const std::string
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StringCQ += payload_hash;
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std::string kSecret = "AWS4" + secret_access_key;
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unsigned char *kDate, *kRegion, *kService, *kSigning, *sRequest = nullptr;
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unsigned int kDate_len,kRegion_len, kService_len, kSigning_len, sRequest_len = 0;
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unsigned char *kDate, *kRegion, *kService, *kSigning = nullptr;
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unsigned int kDate_len,kRegion_len, kService_len, kSigning_len = 0;
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s3fs_HMAC256(kSecret.c_str(), kSecret.size(), reinterpret_cast<const unsigned char*>(strdate.data()), strdate.size(), &kDate, &kDate_len);
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s3fs_HMAC256(kDate, kDate_len, reinterpret_cast<const unsigned char*>(endpoint.c_str()), endpoint.size(), &kRegion, &kRegion_len);
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@ -2821,13 +2821,13 @@ std::string S3fsCurl::CalcSignature(const std::string& method, const std::string
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const unsigned char* cRequest = reinterpret_cast<const unsigned char*>(StringCQ.c_str());
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size_t cRequest_len = StringCQ.size();
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s3fs_sha256(cRequest, cRequest_len, &sRequest, &sRequest_len);
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sha256_t sRequest;
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s3fs_sha256(cRequest, cRequest_len, &sRequest);
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StringToSign = "AWS4-HMAC-SHA256\n";
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StringToSign += date8601 + "\n";
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StringToSign += strdate + "/" + endpoint + "/s3/aws4_request\n";
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StringToSign += s3fs_hex_lower(sRequest, sRequest_len);
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delete[] sRequest;
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StringToSign += s3fs_hex_lower(sRequest.data(), sRequest.size());
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const unsigned char* cscope = reinterpret_cast<const unsigned char*>(StringToSign.c_str());
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size_t cscope_len = StringToSign.size();
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@ -2859,11 +2859,9 @@ void S3fsCurl::insertV4Headers(const std::string& access_key_id, const std::stri
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case REQTYPE::COMPLETEMULTIPOST:
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{
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size_t cRequest_len = strlen(reinterpret_cast<const char *>(b_postdata));
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unsigned char* sRequest = nullptr;
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unsigned int sRequest_len = 0;
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s3fs_sha256(b_postdata, cRequest_len, &sRequest, &sRequest_len);
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payload_hash = s3fs_hex_lower(sRequest, sRequest_len);
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delete[] sRequest;
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sha256_t sRequest;
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s3fs_sha256(b_postdata, cRequest_len, &sRequest);
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payload_hash = s3fs_hex_lower(sRequest.data(), sRequest.size());
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break;
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}
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@ -4120,16 +4118,15 @@ int S3fsCurl::UploadMultipartPostSetup(const char* tpath, int part_num, const st
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// make md5 and file pointer
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if(S3fsCurl::is_content_md5){
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unsigned char *md5raw = s3fs_md5_fd(partdata.fd, partdata.startpos, partdata.size);
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if(md5raw == nullptr){
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md5_t md5raw;
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if(!s3fs_md5_fd(partdata.fd, partdata.startpos, partdata.size, &md5raw)){
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S3FS_PRN_ERR("Could not make md5 for file(part %d)", part_num);
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return -EIO;
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}
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partdata.etag = s3fs_hex_lower(md5raw, get_md5_digest_length());
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char* md5base64p = s3fs_base64(md5raw, get_md5_digest_length());
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partdata.etag = s3fs_hex_lower(md5raw.data(), md5raw.size());
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char* md5base64p = s3fs_base64(md5raw.data(), md5raw.size());
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requestHeaders = curl_slist_sort_insert(requestHeaders, "Content-MD5", md5base64p);
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delete[] md5base64p;
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delete[] md5raw;
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}
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// make request
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@ -183,22 +183,16 @@ bool s3fs_HMAC256(const void* key, size_t keylen, const unsigned char* data, siz
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//-------------------------------------------------------------------
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// Utility Function for MD5
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//-------------------------------------------------------------------
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size_t get_md5_digest_length()
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{
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return 16;
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}
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#ifdef USE_GNUTLS_NETTLE
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unsigned char* s3fs_md5_fd(int fd, off_t start, off_t size)
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bool s3fs_md5_fd(int fd, off_t start, off_t size, md5_t* result)
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{
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struct md5_ctx ctx_md5;
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off_t bytes;
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unsigned char* result;
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if(-1 == size){
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struct stat st;
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if(-1 == fstat(fd, &st)){
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return nullptr;
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return false;
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}
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size = st.st_size;
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}
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@ -216,36 +210,34 @@ unsigned char* s3fs_md5_fd(int fd, off_t start, off_t size)
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}else if(-1 == bytes){
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// error
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S3FS_PRN_ERR("file read error(%d)", errno);
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return nullptr;
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return false;
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}
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md5_update(&ctx_md5, bytes, buf);
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}
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result = new unsigned char[get_md5_digest_length()];
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md5_digest(&ctx_md5, get_md5_digest_length(), result);
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md5_digest(&ctx_md5, result->size(), result->data());
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return result;
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return true;
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}
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#else // USE_GNUTLS_NETTLE
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unsigned char* s3fs_md5_fd(int fd, off_t start, off_t size)
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bool s3fs_md5_fd(int fd, off_t start, off_t size, md5_t* result)
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{
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gcry_md_hd_t ctx_md5;
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gcry_error_t err;
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off_t bytes;
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unsigned char* result;
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if(-1 == size){
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struct stat st;
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if(-1 == fstat(fd, &st)){
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return nullptr;
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return false;
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}
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size = st.st_size;
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}
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if(GPG_ERR_NO_ERROR != (err = gcry_md_open(&ctx_md5, GCRY_MD_MD5, 0))){
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S3FS_PRN_ERR("MD5 context creation failure: %s/%s", gcry_strsource(err), gcry_strerror(err));
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return nullptr;
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return false;
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}
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for(off_t total = 0; total < size; total += bytes){
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@ -260,15 +252,14 @@ unsigned char* s3fs_md5_fd(int fd, off_t start, off_t size)
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// error
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S3FS_PRN_ERR("file read error(%d)", errno);
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gcry_md_close(ctx_md5);
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return nullptr;
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return false;
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}
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gcry_md_write(ctx_md5, buf, bytes);
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}
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result = new unsigned char[get_md5_digest_length()];
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memcpy(result, gcry_md_read(ctx_md5, 0), get_md5_digest_length());
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memcpy(result->data(), gcry_md_read(ctx_md5, 0), result->size());
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gcry_md_close(ctx_md5);
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return result;
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return true;
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}
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#endif // USE_GNUTLS_NETTLE
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@ -276,30 +267,21 @@ unsigned char* s3fs_md5_fd(int fd, off_t start, off_t size)
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//-------------------------------------------------------------------
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// Utility Function for SHA256
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//-------------------------------------------------------------------
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size_t get_sha256_digest_length()
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{
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return 32;
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}
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#ifdef USE_GNUTLS_NETTLE
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bool s3fs_sha256(const unsigned char* data, size_t datalen, unsigned char** digest, unsigned int* digestlen)
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bool s3fs_sha256(const unsigned char* data, size_t datalen, sha256_t* digest)
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{
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(*digestlen) = static_cast<unsigned int>(get_sha256_digest_length());
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*digest = new unsigned char[*digestlen];
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struct sha256_ctx ctx_sha256;
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sha256_init(&ctx_sha256);
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sha256_update(&ctx_sha256, datalen, data);
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sha256_digest(&ctx_sha256, *digestlen, *digest);
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sha256_digest(&ctx_sha256, digest->size(), digest->data());
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return true;
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}
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unsigned char* s3fs_sha256_fd(int fd, off_t start, off_t size)
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bool s3fs_sha256_fd(int fd, off_t start, off_t size, sha256_t* result)
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{
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struct sha256_ctx ctx_sha256;
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off_t bytes;
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unsigned char* result;
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sha256_init(&ctx_sha256);
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@ -314,55 +296,49 @@ unsigned char* s3fs_sha256_fd(int fd, off_t start, off_t size)
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}else if(-1 == bytes){
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// error
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S3FS_PRN_ERR("file read error(%d)", errno);
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return nullptr;
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return false;
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}
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sha256_update(&ctx_sha256, bytes, buf);
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}
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result = new unsigned char[get_sha256_digest_length()];
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sha256_digest(&ctx_sha256, get_sha256_digest_length(), result);
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sha256_digest(&ctx_sha256, result->size(), result->data());
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return result;
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return true;
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}
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#else // USE_GNUTLS_NETTLE
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bool s3fs_sha256(const unsigned char* data, size_t datalen, unsigned char** digest, unsigned int* digestlen)
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bool s3fs_sha256(const unsigned char* data, size_t datalen, sha256_t* digest)
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{
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size_t len = (*digestlen) = static_cast<unsigned int>(get_sha256_digest_length());
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*digest = new unsigned char[len];
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gcry_md_hd_t ctx_sha256;
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gcry_error_t err;
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if(GPG_ERR_NO_ERROR != (err = gcry_md_open(&ctx_sha256, GCRY_MD_SHA256, 0))){
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S3FS_PRN_ERR("SHA256 context creation failure: %s/%s", gcry_strsource(err), gcry_strerror(err));
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delete[] *digest;
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return false;
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}
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gcry_md_write(ctx_sha256, data, datalen);
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memcpy(*digest, gcry_md_read(ctx_sha256, 0), *digestlen);
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memcpy(digest->data(), gcry_md_read(ctx_sha256, 0), digest->size());
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gcry_md_close(ctx_sha256);
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return true;
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}
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unsigned char* s3fs_sha256_fd(int fd, off_t start, off_t size)
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bool s3fs_sha256_fd(int fd, off_t start, off_t size, sha256_t* result)
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{
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gcry_md_hd_t ctx_sha256;
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gcry_error_t err;
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off_t bytes;
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unsigned char* result;
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if(-1 == size){
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struct stat st;
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if(-1 == fstat(fd, &st)){
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return nullptr;
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return false;
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}
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size = st.st_size;
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}
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if(GPG_ERR_NO_ERROR != (err = gcry_md_open(&ctx_sha256, GCRY_MD_SHA256, 0))){
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S3FS_PRN_ERR("SHA256 context creation failure: %s/%s", gcry_strsource(err), gcry_strerror(err));
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return nullptr;
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return false;
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}
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for(off_t total = 0; total < size; total += bytes){
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@ -377,15 +353,14 @@ unsigned char* s3fs_sha256_fd(int fd, off_t start, off_t size)
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// error
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S3FS_PRN_ERR("file read error(%d)", errno);
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gcry_md_close(ctx_sha256);
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return nullptr;
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return false;
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}
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gcry_md_write(ctx_sha256, buf, bytes);
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}
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result = new unsigned char[get_sha256_digest_length()];
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memcpy(result, gcry_md_read(ctx_sha256, 0), get_sha256_digest_length());
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memcpy(result->data(), gcry_md_read(ctx_sha256, 0), result->size());
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gcry_md_close(ctx_sha256);
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return result;
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return true;
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}
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#endif // USE_GNUTLS_NETTLE
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@ -146,22 +146,16 @@ bool s3fs_HMAC256(const void* key, size_t keylen, const unsigned char* data, siz
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//-------------------------------------------------------------------
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// Utility Function for MD5
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//-------------------------------------------------------------------
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size_t get_md5_digest_length()
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{
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return MD5_LENGTH;
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}
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unsigned char* s3fs_md5_fd(int fd, off_t start, off_t size)
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bool s3fs_md5_fd(int fd, off_t start, off_t size, md5_t* result)
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{
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PK11Context* md5ctx;
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off_t bytes;
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unsigned char* result;
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unsigned int md5outlen;
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if(-1 == size){
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struct stat st;
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if(-1 == fstat(fd, &st)){
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return nullptr;
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return false;
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}
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size = st.st_size;
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}
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@ -180,53 +174,42 @@ unsigned char* s3fs_md5_fd(int fd, off_t start, off_t size)
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// error
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S3FS_PRN_ERR("file read error(%d)", errno);
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PK11_DestroyContext(md5ctx, PR_TRUE);
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return nullptr;
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return false;
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}
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PK11_DigestOp(md5ctx, buf, bytes);
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}
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result = new unsigned char[get_md5_digest_length()];
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PK11_DigestFinal(md5ctx, result, &md5outlen, get_md5_digest_length());
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PK11_DigestFinal(md5ctx, result->data(), &md5outlen, result->size());
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PK11_DestroyContext(md5ctx, PR_TRUE);
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return result;
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return false;
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}
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//-------------------------------------------------------------------
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// Utility Function for SHA256
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//-------------------------------------------------------------------
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size_t get_sha256_digest_length()
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bool s3fs_sha256(const unsigned char* data, size_t datalen, sha256_t* digest)
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{
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return SHA256_LENGTH;
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}
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bool s3fs_sha256(const unsigned char* data, size_t datalen, unsigned char** digest, unsigned int* digestlen)
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{
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(*digestlen) = static_cast<unsigned int>(get_sha256_digest_length());
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*digest = new unsigned char[*digestlen];
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PK11Context* sha256ctx;
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unsigned int sha256outlen;
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sha256ctx = PK11_CreateDigestContext(SEC_OID_SHA256);
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PK11_DigestOp(sha256ctx, data, datalen);
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PK11_DigestFinal(sha256ctx, *digest, &sha256outlen, *digestlen);
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PK11_DigestFinal(sha256ctx, digest->data(), &sha256outlen, digest->size());
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PK11_DestroyContext(sha256ctx, PR_TRUE);
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*digestlen = sha256outlen;
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return true;
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}
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unsigned char* s3fs_sha256_fd(int fd, off_t start, off_t size)
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bool s3fs_sha256_fd(int fd, off_t start, off_t size, sha256_t* result)
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{
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PK11Context* sha256ctx;
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off_t bytes;
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unsigned char* result;
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unsigned int sha256outlen;
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if(-1 == size){
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struct stat st;
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if(-1 == fstat(fd, &st)){
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return nullptr;
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return false;
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}
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size = st.st_size;
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}
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@ -245,15 +228,14 @@ unsigned char* s3fs_sha256_fd(int fd, off_t start, off_t size)
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// error
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S3FS_PRN_ERR("file read error(%d)", errno);
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PK11_DestroyContext(sha256ctx, PR_TRUE);
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return nullptr;
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return false;
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}
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PK11_DigestOp(sha256ctx, buf, bytes);
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}
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result = new unsigned char[get_sha256_digest_length()];
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PK11_DigestFinal(sha256ctx, result, &sha256outlen, get_sha256_digest_length());
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PK11_DigestFinal(sha256ctx, result->data(), &sha256outlen, result->size());
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PK11_DestroyContext(sha256ctx, PR_TRUE);
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return result;
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return true;
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}
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/*
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@ -256,22 +256,16 @@ bool s3fs_HMAC256(const void* key, size_t keylen, const unsigned char* data, siz
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// OpenSSL 3.0 deprecated the MD5_*** low-level encryption functions,
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// so we should use the high-level EVP API instead.
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//
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size_t get_md5_digest_length()
|
||||
{
|
||||
return EVP_MD_size(EVP_md5());
|
||||
}
|
||||
|
||||
unsigned char* s3fs_md5_fd(int fd, off_t start, off_t size)
|
||||
bool s3fs_md5_fd(int fd, off_t start, off_t size, md5_t* result)
|
||||
{
|
||||
EVP_MD_CTX* mdctx;
|
||||
unsigned char* md5_digest;
|
||||
unsigned int md5_digest_len = static_cast<unsigned int>(get_md5_digest_length());
|
||||
unsigned int md5_digest_len = result->size();
|
||||
off_t bytes;
|
||||
|
||||
if(-1 == size){
|
||||
struct stat st;
|
||||
if(-1 == fstat(fd, &st)){
|
||||
return nullptr;
|
||||
return false;
|
||||
}
|
||||
size = st.st_size;
|
||||
}
|
||||
@ -292,39 +286,32 @@ unsigned char* s3fs_md5_fd(int fd, off_t start, off_t size)
|
||||
// error
|
||||
S3FS_PRN_ERR("file read error(%d)", errno);
|
||||
EVP_MD_CTX_free(mdctx);
|
||||
return nullptr;
|
||||
return false;
|
||||
}
|
||||
// instead of MD5_Update
|
||||
EVP_DigestUpdate(mdctx, buf, bytes);
|
||||
}
|
||||
|
||||
// instead of MD5_Final
|
||||
md5_digest = new unsigned char[md5_digest_len];
|
||||
EVP_DigestFinal_ex(mdctx, md5_digest, &md5_digest_len);
|
||||
EVP_DigestFinal_ex(mdctx, result->data(), &md5_digest_len);
|
||||
EVP_MD_CTX_free(mdctx);
|
||||
|
||||
return md5_digest;
|
||||
return true;
|
||||
}
|
||||
|
||||
#else
|
||||
//-------------------------------------------------------------------
|
||||
// Utility Function for MD5 (OpenSSL < 3.0)
|
||||
//-------------------------------------------------------------------
|
||||
size_t get_md5_digest_length()
|
||||
{
|
||||
return MD5_DIGEST_LENGTH;
|
||||
}
|
||||
|
||||
unsigned char* s3fs_md5_fd(int fd, off_t start, off_t size)
|
||||
bool s3fs_md5_fd(int fd, off_t start, off_t size, md5_t* result)
|
||||
{
|
||||
MD5_CTX md5ctx;
|
||||
off_t bytes;
|
||||
unsigned char* result;
|
||||
|
||||
if(-1 == size){
|
||||
struct stat st;
|
||||
if(-1 == fstat(fd, &st)){
|
||||
return nullptr;
|
||||
return false;
|
||||
}
|
||||
size = st.st_size;
|
||||
}
|
||||
@ -342,56 +329,48 @@ unsigned char* s3fs_md5_fd(int fd, off_t start, off_t size)
|
||||
}else if(-1 == bytes){
|
||||
// error
|
||||
S3FS_PRN_ERR("file read error(%d)", errno);
|
||||
return nullptr;
|
||||
return false;
|
||||
}
|
||||
MD5_Update(&md5ctx, buf, bytes);
|
||||
}
|
||||
|
||||
result = new unsigned char[get_md5_digest_length()];
|
||||
MD5_Final(result, &md5ctx);
|
||||
MD5_Final(result->data(), &md5ctx);
|
||||
|
||||
return result;
|
||||
return true;
|
||||
}
|
||||
#endif
|
||||
|
||||
//-------------------------------------------------------------------
|
||||
// Utility Function for SHA256
|
||||
//-------------------------------------------------------------------
|
||||
size_t get_sha256_digest_length()
|
||||
bool s3fs_sha256(const unsigned char* data, size_t datalen, sha256_t* digest)
|
||||
{
|
||||
return SHA256_DIGEST_LENGTH;
|
||||
}
|
||||
|
||||
bool s3fs_sha256(const unsigned char* data, size_t datalen, unsigned char** digest, unsigned int* digestlen)
|
||||
{
|
||||
(*digestlen) = EVP_MAX_MD_SIZE * sizeof(unsigned char);
|
||||
*digest = new unsigned char[*digestlen];
|
||||
|
||||
const EVP_MD* md = EVP_get_digestbyname("sha256");
|
||||
EVP_MD_CTX* mdctx = EVP_MD_CTX_create();
|
||||
EVP_DigestInit_ex(mdctx, md, nullptr);
|
||||
EVP_DigestUpdate(mdctx, data, datalen);
|
||||
EVP_DigestFinal_ex(mdctx, *digest, digestlen);
|
||||
// TODO: strange
|
||||
unsigned int digestlen = digest->size();
|
||||
EVP_DigestFinal_ex(mdctx, digest->data(), &digestlen);
|
||||
EVP_MD_CTX_destroy(mdctx);
|
||||
|
||||
return true;
|
||||
}
|
||||
|
||||
unsigned char* s3fs_sha256_fd(int fd, off_t start, off_t size)
|
||||
bool s3fs_sha256_fd(int fd, off_t start, off_t size, sha256_t* result)
|
||||
{
|
||||
const EVP_MD* md = EVP_get_digestbyname("sha256");
|
||||
EVP_MD_CTX* sha256ctx;
|
||||
off_t bytes;
|
||||
unsigned char* result;
|
||||
|
||||
if(-1 == fd){
|
||||
return nullptr;
|
||||
return false;
|
||||
}
|
||||
if(-1 == size){
|
||||
struct stat st;
|
||||
if(-1 == fstat(fd, &st)){
|
||||
S3FS_PRN_ERR("fstat error(%d)", errno);
|
||||
return nullptr;
|
||||
return false;
|
||||
}
|
||||
size = st.st_size;
|
||||
}
|
||||
@ -411,15 +390,14 @@ unsigned char* s3fs_sha256_fd(int fd, off_t start, off_t size)
|
||||
// error
|
||||
S3FS_PRN_ERR("file read error(%d)", errno);
|
||||
EVP_MD_CTX_destroy(sha256ctx);
|
||||
return nullptr;
|
||||
return false;
|
||||
}
|
||||
EVP_DigestUpdate(sha256ctx, buf, bytes);
|
||||
}
|
||||
result = new unsigned char[get_sha256_digest_length()];
|
||||
EVP_DigestFinal_ex(sha256ctx, result, nullptr);
|
||||
EVP_DigestFinal_ex(sha256ctx, result->data(), nullptr);
|
||||
EVP_MD_CTX_destroy(sha256ctx);
|
||||
|
||||
return result;
|
||||
return true;
|
||||
}
|
||||
|
||||
/*
|
||||
|
||||
@ -21,9 +21,13 @@
|
||||
#ifndef S3FS_AUTH_H_
|
||||
#define S3FS_AUTH_H_
|
||||
|
||||
#include <array>
|
||||
#include <string>
|
||||
#include <sys/types.h>
|
||||
|
||||
typedef std::array<unsigned char, 16> md5_t;
|
||||
typedef std::array<unsigned char, 32> sha256_t;
|
||||
|
||||
//-------------------------------------------------------------------
|
||||
// Utility functions for Authentication
|
||||
//-------------------------------------------------------------------
|
||||
@ -43,11 +47,9 @@ bool s3fs_init_crypt_mutex();
|
||||
bool s3fs_destroy_crypt_mutex();
|
||||
bool s3fs_HMAC(const void* key, size_t keylen, const unsigned char* data, size_t datalen, unsigned char** digest, unsigned int* digestlen);
|
||||
bool s3fs_HMAC256(const void* key, size_t keylen, const unsigned char* data, size_t datalen, unsigned char** digest, unsigned int* digestlen);
|
||||
size_t get_md5_digest_length();
|
||||
unsigned char* s3fs_md5_fd(int fd, off_t start, off_t size);
|
||||
bool s3fs_sha256(const unsigned char* data, size_t datalen, unsigned char** digest, unsigned int* digestlen);
|
||||
size_t get_sha256_digest_length();
|
||||
unsigned char* s3fs_sha256_fd(int fd, off_t start, off_t size);
|
||||
bool s3fs_md5_fd(int fd, off_t start, off_t size, md5_t* result);
|
||||
bool s3fs_sha256(const unsigned char* data, size_t datalen, sha256_t* digest);
|
||||
bool s3fs_sha256_fd(int fd, off_t start, off_t size, sha256_t* result);
|
||||
|
||||
#endif // S3FS_AUTH_H_
|
||||
|
||||
|
||||
Loading…
Reference in New Issue
Block a user