/** @file * IPRT - Manifest file handling. */ /* * Copyright (C) 2009 Oracle Corporation * * This file is part of VirtualBox Open Source Edition (OSE), as * available from http://www.virtualbox.org. This file is free software; * you can redistribute it and/or modify it under the terms of the GNU * General Public License (GPL) as published by the Free Software * Foundation, in version 2 as it comes in the "COPYING" file of the * VirtualBox OSE distribution. VirtualBox OSE is distributed in the * hope that it will be useful, but WITHOUT ANY WARRANTY of any kind. * * The contents of this file may alternatively be used under the terms * of the Common Development and Distribution License Version 1.0 * (CDDL) only, as it comes in the "COPYING.CDDL" file of the * VirtualBox OSE distribution, in which case the provisions of the * CDDL are applicable instead of those of the GPL. * * You may elect to license modified versions of this file under the * terms and conditions of either the GPL or the CDDL or both. */ #ifndef ___iprt_manifest_h #define ___iprt_manifest_h #include #include RT_C_DECLS_BEGIN /** @defgroup grp_rt_manifest RTManifest - Manifest file creation and checking * @ingroup grp_rt * @{ */ /** @name Manifest attribute types. * The types can be ORed together to form a set. * @{ */ /** For use with other attributes. Representation unknown. */ #define RTMANIFEST_ATTR_UNKNOWN 0 /** The size of the content. Represented as a decimal number. */ #define RTMANIFEST_ATTR_SIZE RT_BIT_32(0) /** The MD5 of the content. Represented as a hex string. */ #define RTMANIFEST_ATTR_MD5 RT_BIT_32(1) /** The SHA-1 of the content. Represented as a hex string. */ #define RTMANIFEST_ATTR_SHA1 RT_BIT_32(2) /** The SHA-256 of the content. Represented as a hex string. */ #define RTMANIFEST_ATTR_SHA256 RT_BIT_32(3) /** The SHA-512 of the content. Represented as a hex string. */ #define RTMANIFEST_ATTR_SHA512 RT_BIT_32(4) /** The end of the valid values. */ #define RTMANIFEST_ATTR_END RT_BIT_32(5) /** @} */ /** * Creates an empty manifest. * * @returns IPRT status code. * @param fFlags Flags, MBZ. * @param phManifest Where to return the handle to the manifest. */ RTDECL(int) RTManifestCreate(uint32_t fFlags, PRTMANIFEST phManifest); /** * Retains a reference to the manifest handle. * * @returns The new reference count, UINT32_MAX if the handle is invalid. * @param hManifest The handle to retain. */ RTDECL(uint32_t) RTManifestRetain(RTMANIFEST hManifest); /** * Releases a reference to the manifest handle. * * @returns The new reference count, 0 if free. UINT32_MAX is returned if the * handle is invalid. * @param hManifest The handle to release. * NIL is quietly ignored (returns 0). */ RTDECL(uint32_t) RTManifestRelease(RTMANIFEST hManifest); /** * Creates a duplicate of the specified manifest. * * @returns IPRT status code * @param hManifestSrc The manifest to clone. * @param phManifestDst Where to store the handle to the duplicate. */ RTDECL(int) RTManifestDup(RTMANIFEST hManifestSrc, PRTMANIFEST phManifestDst); /** * Compares two manifests for equality. * * @returns IPRT status code. * @retval VINF_SUCCESS if equal. * @retval VERR_NOT_EQUAL if not equal. * * @param hManifest1 The first manifest. * @param hManifest2 The second manifest. * @param papszIgnoreEntries Entries to ignore. Ends with a NULL entry. * @param papszIgnoreAttrs Attributes to ignore. Ends with a NULL entry. * @param fFlags A combination of RTMANIFEST_EQUALS_XXX values. * @param pszError Where to store the name of the mismatching * entry, or as much of the name as there is room * for. This is always set. Optional. * @param cbError The size of the buffer pointed to by @a * pszError. */ RTDECL(int) RTManifestEqualsEx(RTMANIFEST hManifest1, RTMANIFEST hManifest2, const char * const *papszIgnoreEntries, const char * const *papszIgnoreAttr, uint32_t fFlags, char *pszError, size_t cbError); /** @defgroup RTMANIFEST_EQUALS_XXX RTManifestEqualsEx flags * @{ */ /** Ignore missing attributes if there is one or more to compare. */ #define RTMANIFEST_EQUALS_IGN_MISSING_ATTRS RT_BIT_32(0) /** Ignore attributes missing in the 1st manifest. * @todo implement this */ #define RTMANIFEST_EQUALS_IGN_MISSING_ATTRS_1ST RT_BIT_32(1) /** Mask of valid flags. */ #define RTMANIFEST_EQUALS_VALID_MASK UINT32_C(0x00000003) /** @} */ /** * Compares two manifests for equality. * * @returns IPRT status code. * @retval VINF_SUCCESS if equal. * @retval VERR_NOT_EQUAL if not equal. * * @param hManifest1 The first manifest. * @param hManifest2 The second manifest. */ RTDECL(int) RTManifestEquals(RTMANIFEST hManifest1, RTMANIFEST hManifest2); /** * Sets a manifest attribute. * * @returns IPRT status code. * @param hManifest The manifest handle. * @param pszAttr The attribute name. If this already exists, * its value will be replaced. * @param pszValue The value string. * @param fType The attribute type, pass * RTMANIFEST_ATTR_UNKNOWN if not known. */ RTDECL(int) RTManifestSetAttr(RTMANIFEST hManifest, const char *pszAttr, const char *pszValue, uint32_t fType); /** * Unsets (removes) a manifest attribute if it exists. * * @returns IPRT status code. * @retval VWRN_NOT_FOUND if not found. * * @param hManifest The manifest handle. * @param pszAttr The attribute name. */ RTDECL(int) RTManifestUnsetAttr(RTMANIFEST hManifest, const char *pszAttr); /** * Sets an attribute of a manifest entry. * * @returns IPRT status code. * @param hManifest The manifest handle. * @param pszEntry The entry name. This will automatically be * added if there was no previous call to * RTManifestEntryAdd for this name. See * RTManifestEntryAdd for the entry name rules. * @param pszAttr The attribute name. If this already exists, * its value will be replaced. * @param pszValue The value string. * @param fType The attribute type, pass * RTMANIFEST_ATTR_UNKNOWN if not known. */ RTDECL(int) RTManifestEntrySetAttr(RTMANIFEST hManifest, const char *pszEntry, const char *pszAttr, const char *pszValue, uint32_t fType); /** * Unsets (removes) an attribute of a manifest entry if they both exist. * * @returns IPRT status code. * @retval VWRN_NOT_FOUND if not found. * * @param hManifest The manifest handle. * @param pszEntry The entry name. * @param pszAttr The attribute name. */ RTDECL(int) RTManifestEntryUnsetAttr(RTMANIFEST hManifest, const char *pszEntry, const char *pszAttr); /** * Adds a new entry to a manifest. * * The entry name rules: * - The entry name can contain any character defined by unicode, except * control characters, ':', '(' and ')'. The exceptions are mainly there * because of uncertainty around how various formats handles these. * - It is considered case sensitive. * - Forward (unix) and backward (dos) slashes are considered path * separators and converted to forward slashes. * * @returns IPRT status code. * @retval VWRN_ALREADY_EXISTS if the entry already exists. * * @param hManifest The manifest handle. * @param pszEntry The entry name (UTF-8). * * @remarks Some manifest formats will not be able to store an entry without * any attributes. So, this is just here in case it comes in handy * when dealing with formats which can. */ RTDECL(int) RTManifestEntryAdd(RTMANIFEST hManifest, const char *pszEntry); /** * Removes an entry. * * @returns IPRT status code. * @param hManifest The manifest handle. * @param pszEntry The entry name. */ RTDECL(int) RTManifestEntryRemove(RTMANIFEST hManifest, const char *pszEntry); /** * Add an entry for an I/O stream using a passthru stream. * * The passthru I/O stream will hash all the data read from or written to the * stream and automatically add an entry to the manifest with the desired * attributes when it is released. Alternatively one can call * RTManifestPtIosAddEntryNow() to have more control over exactly when this * action is performed and which status it yields. * * @returns IPRT status code. * @param hManifest The manifest to add the entry to. * @param hVfsIos The I/O stream to pass thru to/from. * @param pszEntry The entry name. * @param fAttrs The attributes to create for this stream. * @param fReadOrWrite Whether it's a read or write I/O stream. * @param phVfsIosPassthru Where to return the new handle. */ RTDECL(int) RTManifestEntryAddPassthruIoStream(RTMANIFEST hManifest, RTVFSIOSTREAM hVfsIos, const char *pszEntry, uint32_t fAttrs, bool fReadOrWrite, PRTVFSIOSTREAM phVfsIosPassthru); /** * Adds the entry to the manifest right now. * * @returns IPRT status code. * @param hVfsPtIos The manifest passthru I/O stream returned by * RTManifestEntryAddPassthruIoStream(). */ RTDECL(int) RTManifestPtIosAddEntryNow(RTVFSIOSTREAM hVfsPtIos); /** * Adds an entry for a file with the specified set of attributes. * * @returns IPRT status code. * * @param hManifest The manifest handle. * @param hVfsIos The I/O stream handle of the entry. This will * be processed to its end on successful return. * (Must be positioned at the start to get * the expected results.) * @param pszEntry The entry name. * @param fAttrs The attributes to create for this stream. See * RTMANIFEST_ATTR_XXX. */ RTDECL(int) RTManifestEntryAddIoStream(RTMANIFEST hManifest, RTVFSIOSTREAM hVfsIos, const char *pszEntry, uint32_t fAttrs); /** * Checks if there is a manifest entry by the given name. * * @returns true if there is, false if not or if the handle is invalid. * @param hManifest The manifest handle. * @param pszEntry The entry name. */ RTDECL(bool) RTManifestEntryExists(RTMANIFEST hManifest, const char *pszEntry); /** * Reads in a "standard" manifest. * * This reads the format used by OVF, the distinfo in FreeBSD ports, and * others. * * @returns IPRT status code. * @param hManifest The handle to the manifest where to add the * manifest that's read in. * @param hVfsIos The I/O stream to read the manifest from. */ RTDECL(int) RTManifestReadStandard(RTMANIFEST hManifest, RTVFSIOSTREAM hVfsIos); /** * Reads in a "standard" manifest. * * This reads the format used by OVF, the distinfo in FreeBSD ports, and * others. * * @returns IPRT status code. * @param hManifest The handle to the manifest where to add the * manifest that's read in. * @param hVfsIos The I/O stream to read the manifest from. * @param pszErr Where to return extended error info on failure. * Optional. * @param cbErr The size of the buffer @a pszErr points to. */ RTDECL(int) RTManifestReadStandardEx(RTMANIFEST hManifest, RTVFSIOSTREAM hVfsIos, char *pszErr, size_t cbErr); /** * Reads in a "standard" manifest from the specified file. * * This reads the format used by OVF, the distinfo in FreeBSD ports, and * others. * * @returns IPRT status code. * @param hManifest The handle to the manifest where to add the * manifest that's read in. * @param pszFilename The name of the file to read in. */ RTDECL(int) RTManifestReadStandardFromFile(RTMANIFEST hManifest, const char *pszFilename); /** * Writes a "standard" manifest. * * This writes the format used by OVF, the distinfo in FreeBSD ports, and * others. * * @returns IPRT status code. * @param hManifest The handle to the manifest to write. * @param hVfsIos The I/O stream to read the manifest from. */ RTDECL(int) RTManifestWriteStandard(RTMANIFEST hManifest, RTVFSIOSTREAM hVfsIos); /** * Writes a "standard" manifest to the specified file. * * @returns IPRT status code. * @param hManifest The handle to the manifest to write. * @param pszFilename The name of the file. */ RTDECL(int) RTManifestWriteStandardToFile(RTMANIFEST hManifest, const char *pszFilename); /** * Input structure for RTManifestVerify() which contains the filename & the * SHA1 digest. */ typedef struct RTMANIFESTTEST { /** The filename. */ const char *pszTestFile; /** The SHA1 digest of the file. */ const char *pszTestDigest; } RTMANIFESTTEST; /** Pointer to the input structure. */ typedef RTMANIFESTTEST* PRTMANIFESTTEST; /** * Verify the given SHA1 digests against the entries in the manifest file. * * Please note that not only the various digest have to match, but the * filenames as well. If there are more or even less files listed in the * manifest file than provided by paTests, VERR_MANIFEST_FILE_MISMATCH will be * returned. * * @returns iprt status code. * * @param pszManifestFile Filename of the manifest file to verify. * @param paTests Array of files & SHA1 sums. * @param cTests Number of entries in paTests. * @param piFailed A index to paTests in the * VERR_MANIFEST_DIGEST_MISMATCH error case * (optional). */ RTR3DECL(int) RTManifestVerify(const char *pszManifestFile, PRTMANIFESTTEST paTests, size_t cTests, size_t *piFailed); /** * This is analogous to function RTManifestVerify(), but calculates the SHA1 * sums of the given files itself. * * @returns iprt status code. * * @param pszManifestFile Filename of the manifest file to verify. * @param papszFiles Array of files to check SHA1 sums. * @param cFiles Number of entries in papszFiles. * @param piFailed A index to papszFiles in the * VERR_MANIFEST_DIGEST_MISMATCH error case * (optional). * @param pfnProgressCallback optional callback for the progress indication * @param pvUser user defined pointer for the callback */ RTR3DECL(int) RTManifestVerifyFiles(const char *pszManifestFile, const char * const *papszFiles, size_t cFiles, size_t *piFailed, PFNRTPROGRESS pfnProgressCallback, void *pvUser); /** * Creates a manifest file for a set of files. The manifest file contains SHA1 * sums of every provided file and could be used to verify the data integrity * of them. * * @returns iprt status code. * * @param pszManifestFile Filename of the manifest file to create. * @param papszFiles Array of files to create SHA1 sums for. * @param cFiles Number of entries in papszFiles. * @param pfnProgressCallback optional callback for the progress indication * @param pvUser user defined pointer for the callback */ RTR3DECL(int) RTManifestWriteFiles(const char *pszManifestFile, const char * const *papszFiles, size_t cFiles, PFNRTPROGRESS pfnProgressCallback, void *pvUser); /** * Verify the given SHA1 digests against the entries in the manifest file in * memory. * * @returns iprt status code. * * @param pvBuf Pointer to memory buffer of the manifest file. * @param cbSize Size of the memory buffer. * @param paTests Array of file names and digests. * @param cTest Number of entries in paTests. * @param piFailed A index to paTests in the * VERR_MANIFEST_DIGEST_MISMATCH error case * (optional). */ RTR3DECL(int) RTManifestVerifyFilesBuf(void *pvBuf, size_t cbSize, PRTMANIFESTTEST paTests, size_t cTests, size_t *piFailed); /** * Creates a manifest file in memory for a set of files. The manifest file * contains SHA1 sums of every provided file and could be used to verify the * data integrity of them. * * @returns iprt status code. * * @param ppvBuf Pointer to resulting memory buffer. * @param pcbSize Pointer for the size of the memory buffer. * @param paFiles Array of file names and digests. * @param cFiles Number of entries in paFiles. */ RTR3DECL(int) RTManifestWriteFilesBuf(void **ppvBuf, size_t *pcbSize, PRTMANIFESTTEST paFiles, size_t cFiles); /** @} */ RT_C_DECLS_END #endif