+/*
+ Bacula(R) - The Network Backup Solution
+
+ Copyright (C) 2000-2015 Kern Sibbald
+
+ The original author of Bacula is Kern Sibbald, with contributions
+ from many others, a complete list can be found in the file AUTHORS.
+
+ You may use this file and others of this release according to the
+ license defined in the LICENSE file, which includes the Affero General
+ Public License, v3.0 ("AGPLv3") and some additional permissions and
+ terms pursuant to its AGPLv3 Section 7.
+
+ This notice must be preserved when any source code is
+ conveyed and/or propagated.
+
+ Bacula(R) is a registered trademark of Kern Sibbald.
+*/
/*
* Bacula low level File I/O routines. This routine simulates
* open(), read(), write(), and close(), but using native routines.
*
* Kern Sibbald, April MMIII
*
- * Version $Id$
- *
*/
-/*
- Copyright (C) 2000-2003 Kern Sibbald and John Walker
- This program is free software; you can redistribute it and/or
- modify it under the terms of the GNU General Public License as
- published by the Free Software Foundation; either version 2 of
- the License, or (at your option) any later version.
+#include "bacula.h"
+#include "find.h"
- This program is distributed in the hope that it will be useful,
- but WITHOUT ANY WARRANTY; without even the implied warranty of
- MERCHANTABILITY or FITNESS FOR A PARTICULAR PURPOSE. See the GNU
- General Public License for more details.
+const int dbglvl = 200;
- You should have received a copy of the GNU General Public
- License along with this program; if not, write to the Free
- Software Foundation, Inc., 59 Temple Place - Suite 330, Boston,
- MA 02111-1307, USA.
+int (*plugin_bopen)(BFILE *bfd, const char *fname, uint64_t flags, mode_t mode) = NULL;
+int (*plugin_bclose)(BFILE *bfd) = NULL;
+ssize_t (*plugin_bread)(BFILE *bfd, void *buf, size_t count) = NULL;
+ssize_t (*plugin_bwrite)(BFILE *bfd, void *buf, size_t count) = NULL;
+boffset_t (*plugin_blseek)(BFILE *bfd, boffset_t offset, int whence) = NULL;
- */
-#include "bacula.h"
-#include "find.h"
+#ifdef HAVE_DARWIN_OS
+#include <sys/paths.h>
+#endif
+
+#if !defined(HAVE_FDATASYNC)
+#define fdatasync(fd)
+#endif
+
+#ifdef HAVE_WIN32
+void pause_msg(const char *file, const char *func, int line, const char *msg)
+{
+ char buf[1000];
+ if (msg) {
+ bsnprintf(buf, sizeof(buf), "%s:%s:%d %s", file, func, line, msg);
+ } else {
+ bsnprintf(buf, sizeof(buf), "%s:%s:%d", file, func, line);
+ }
+ MessageBox(NULL, buf, "Pause", MB_OK);
+}
+#endif
/* ===============================================================
- *
- * U N I X AND W I N D O W S
+ *
+ * U N I X AND W I N D O W S
*
* ===============================================================
*/
-int is_win32_stream(int stream)
+bool is_win32_stream(int stream)
{
switch (stream) {
case STREAM_WIN32_DATA:
case STREAM_WIN32_GZIP_DATA:
- return 1;
+ case STREAM_WIN32_COMPRESSED_DATA:
+ case STREAM_ENCRYPTED_WIN32_DATA:
+ case STREAM_ENCRYPTED_WIN32_GZIP_DATA:
+ case STREAM_ENCRYPTED_WIN32_COMPRESSED_DATA:
+ return true;
}
- return 0;
+ return false;
}
const char *stream_to_ascii(int stream)
{
static char buf[20];
- switch (stream) {
- case STREAM_GZIP_DATA:
- return "GZIP data";
- case STREAM_SPARSE_GZIP_DATA:
- return "GZIP sparse data";
- case STREAM_WIN32_DATA:
- return "Win32 data";
- case STREAM_WIN32_GZIP_DATA:
- return "Win32 GZIP data";
- case STREAM_UNIX_ATTRIBUTES:
- return "File attributes";
- case STREAM_FILE_DATA:
- return "File data";
- case STREAM_MD5_SIGNATURE:
- return "MD5 signature";
- case STREAM_UNIX_ATTRIBUTES_EX:
- return "Extended attributes";
- case STREAM_SPARSE_DATA:
- return "Sparse data";
- case STREAM_PROGRAM_NAMES:
- return "Program names";
- case STREAM_PROGRAM_DATA:
- return "Program data";
- case STREAM_SHA1_SIGNATURE:
- return "SHA1 signature";
- default:
- sprintf(buf, "%d", stream);
- return (const char *)buf;
+ switch (stream & STREAMMASK_TYPE) {
+ case STREAM_UNIX_ATTRIBUTES:
+ return _("Unix attributes");
+ case STREAM_FILE_DATA:
+ return _("File data");
+ case STREAM_MD5_DIGEST:
+ return _("MD5 digest");
+ case STREAM_GZIP_DATA:
+ return _("GZIP data");
+ case STREAM_COMPRESSED_DATA:
+ return _("Compressed data");
+ case STREAM_UNIX_ATTRIBUTES_EX:
+ return _("Extended attributes");
+ case STREAM_SPARSE_DATA:
+ return _("Sparse data");
+ case STREAM_SPARSE_GZIP_DATA:
+ return _("GZIP sparse data");
+ case STREAM_SPARSE_COMPRESSED_DATA:
+ return _("Compressed sparse data");
+ case STREAM_PROGRAM_NAMES:
+ return _("Program names");
+ case STREAM_PROGRAM_DATA:
+ return _("Program data");
+ case STREAM_SHA1_DIGEST:
+ return _("SHA1 digest");
+ case STREAM_WIN32_DATA:
+ return _("Win32 data");
+ case STREAM_WIN32_GZIP_DATA:
+ return _("Win32 GZIP data");
+ case STREAM_WIN32_COMPRESSED_DATA:
+ return _("Win32 compressed data");
+ case STREAM_MACOS_FORK_DATA:
+ return _("MacOS Fork data");
+ case STREAM_HFSPLUS_ATTRIBUTES:
+ return _("HFS+ attribs");
+ case STREAM_UNIX_ACCESS_ACL:
+ return _("Standard Unix ACL attribs");
+ case STREAM_UNIX_DEFAULT_ACL:
+ return _("Default Unix ACL attribs");
+ case STREAM_SHA256_DIGEST:
+ return _("SHA256 digest");
+ case STREAM_SHA512_DIGEST:
+ return _("SHA512 digest");
+ case STREAM_SIGNED_DIGEST:
+ return _("Signed digest");
+ case STREAM_ENCRYPTED_FILE_DATA:
+ return _("Encrypted File data");
+ case STREAM_ENCRYPTED_WIN32_DATA:
+ return _("Encrypted Win32 data");
+ case STREAM_ENCRYPTED_SESSION_DATA:
+ return _("Encrypted session data");
+ case STREAM_ENCRYPTED_FILE_GZIP_DATA:
+ return _("Encrypted GZIP data");
+ case STREAM_ENCRYPTED_FILE_COMPRESSED_DATA:
+ return _("Encrypted compressed data");
+ case STREAM_ENCRYPTED_WIN32_GZIP_DATA:
+ return _("Encrypted Win32 GZIP data");
+ case STREAM_ENCRYPTED_WIN32_COMPRESSED_DATA:
+ return _("Encrypted Win32 Compressed data");
+ case STREAM_ENCRYPTED_MACOS_FORK_DATA:
+ return _("Encrypted MacOS fork data");
+ case STREAM_PLUGIN_NAME:
+ return _("Plugin Name");
+ case STREAM_PLUGIN_DATA:
+ return _("Plugin Data");
+ case STREAM_RESTORE_OBJECT:
+ return _("Restore Object");
+ case STREAM_XACL_AIX_TEXT:
+ return _("AIX ACL attribs");
+ case STREAM_XACL_DARWIN_ACCESS:
+ return _("Darwin ACL attribs");
+ case STREAM_XACL_FREEBSD_DEFAULT:
+ return _("FreeBSD Default ACL attribs");
+ case STREAM_XACL_FREEBSD_ACCESS:
+ return _("FreeBSD Access ACL attribs");
+ case STREAM_XACL_HPUX_ACL_ENTRY:
+ return _("HPUX ACL attribs");
+ case STREAM_XACL_IRIX_DEFAULT:
+ return _("Irix Default ACL attribs");
+ case STREAM_XACL_IRIX_ACCESS:
+ return _("Irix Access ACL attribs");
+ case STREAM_XACL_LINUX_DEFAULT:
+ return _("Linux Default ACL attribs");
+ case STREAM_XACL_LINUX_ACCESS:
+ return _("Linux Access ACL attribs");
+ case STREAM_XACL_TRU64_DEFAULT:
+ return _("TRU64 Default ACL attribs");
+ case STREAM_XACL_TRU64_ACCESS:
+ return _("TRU64 Access ACL attribs");
+ case STREAM_XACL_SOLARIS_POSIX:
+ return _("Solaris POSIX ACL attribs");
+ case STREAM_XACL_SOLARIS_NFS4:
+ return _("Solaris NFSv4/ZFS ACL attribs");
+ case STREAM_XACL_AFS_TEXT:
+ return _("AFS ACL attribs");
+ case STREAM_XACL_AIX_AIXC:
+ return _("AIX POSIX ACL attribs");
+ case STREAM_XACL_AIX_NFS4:
+ return _("AIX NFSv4 ACL attribs");
+ case STREAM_XACL_FREEBSD_NFS4:
+ return _("FreeBSD NFSv4/ZFS ACL attribs");
+ case STREAM_XACL_HURD_DEFAULT:
+ return _("GNU Hurd Default ACL attribs");
+ case STREAM_XACL_HURD_ACCESS:
+ return _("GNU Hurd Access ACL attribs");
+ case STREAM_XACL_HURD_XATTR:
+ return _("GNU Hurd Extended attribs");
+ case STREAM_XACL_IRIX_XATTR:
+ return _("IRIX Extended attribs");
+ case STREAM_XACL_TRU64_XATTR:
+ return _("TRU64 Extended attribs");
+ case STREAM_XACL_AIX_XATTR:
+ return _("AIX Extended attribs");
+ case STREAM_XACL_OPENBSD_XATTR:
+ return _("OpenBSD Extended attribs");
+ case STREAM_XACL_SOLARIS_SYS_XATTR:
+ return _("Solaris Extensible attribs or System Extended attribs");
+ case STREAM_XACL_SOLARIS_XATTR:
+ return _("Solaris Extended attribs");
+ case STREAM_XACL_DARWIN_XATTR:
+ return _("Darwin Extended attribs");
+ case STREAM_XACL_FREEBSD_XATTR:
+ return _("FreeBSD Extended attribs");
+ case STREAM_XACL_LINUX_XATTR:
+ return _("Linux Extended attribs");
+ case STREAM_XACL_NETBSD_XATTR:
+ return _("NetBSD Extended attribs");
+ default:
+ sprintf(buf, "%d", stream);
+ return (const char *)buf;
+ }
+}
+
+/**
+ * Convert a 64 bit little endian to a big endian
+ */
+void int64_LE2BE(int64_t* pBE, const int64_t v)
+{
+ /* convert little endian to big endian */
+ if (htonl(1) != 1L) { /* no work if on little endian machine */
+ memcpy(pBE, &v, sizeof(int64_t));
+ } else {
+ int i;
+ uint8_t rv[sizeof(int64_t)];
+ uint8_t *pv = (uint8_t *) &v;
+
+ for (i = 0; i < 8; i++) {
+ rv[i] = pv[7 - i];
+ }
+ memcpy(pBE, &rv, sizeof(int64_t));
}
}
+/**
+ * Convert a 32 bit little endian to a big endian
+ */
+void int32_LE2BE(int32_t* pBE, const int32_t v)
+{
+ /* convert little endian to big endian */
+ if (htonl(1) != 1L) { /* no work if on little endian machine */
+ memcpy(pBE, &v, sizeof(int32_t));
+ } else {
+ int i;
+ uint8_t rv[sizeof(int32_t)];
+ uint8_t *pv = (uint8_t *) &v;
+ for (i = 0; i < 4; i++) {
+ rv[i] = pv[3 - i];
+ }
+ memcpy(pBE, &rv, sizeof(int32_t));
+ }
+}
-/* ===============================================================
- *
- * W I N D O W S
- *
- * ===============================================================
+
+/**
+ * Read a BackupRead block and pull out the file data
*/
+bool processWin32BackupAPIBlock (BFILE *bfd, void *pBuffer, ssize_t dwSize)
+{
+ /* pByte contains the buffer
+ dwSize the len to be processed. function assumes to be
+ called in successive incremental order over the complete
+ BackupRead stream beginning at pos 0 and ending at the end.
+ */
+
+ PROCESS_WIN32_BACKUPAPIBLOCK_CONTEXT* pContext = &(bfd->win32DecompContext);
+ bool bContinue = false;
+ int64_t dwDataOffset = 0;
+ int64_t dwDataLen;
+
+ /* Win32 Stream Header size without name of stream.
+ * = sizeof (WIN32_STREAM_ID)- sizeof(WCHAR*);
+ */
+ int32_t dwSizeHeader = 20;
+
+ do {
+ if (pContext->liNextHeader >= dwSize) {
+ dwDataLen = dwSize-dwDataOffset;
+ bContinue = false; /* 1 iteration is enough */
+ } else {
+ dwDataLen = pContext->liNextHeader-dwDataOffset;
+ bContinue = true; /* multiple iterations may be necessary */
+ }
+
+ /* flush */
+ /* copy block of real DATA */
+ if (pContext->bIsInData) {
+ if (bwrite(bfd, ((char *)pBuffer)+dwDataOffset, dwDataLen) != (ssize_t)dwDataLen)
+ return false;
+ }
+
+ if (pContext->liNextHeader < dwSize) {/* is a header in this block ? */
+ int32_t dwOffsetTarget;
+ int32_t dwOffsetSource;
+
+ if (pContext->liNextHeader < 0) {
+ /* start of header was before this block, so we
+ * continue with the part in the current block
+ */
+ dwOffsetTarget = -pContext->liNextHeader;
+ dwOffsetSource = 0;
+ } else {
+ /* start of header is inside of this block */
+ dwOffsetTarget = 0;
+ dwOffsetSource = pContext->liNextHeader;
+ }
+
+ int32_t dwHeaderPartLen = dwSizeHeader-dwOffsetTarget;
+ bool bHeaderIsComplete;
+
+ if (dwHeaderPartLen <= dwSize-dwOffsetSource) {
+ /* header (or rest of header) is completely available
+ in current block
+ */
+ bHeaderIsComplete = true;
+ } else {
+ /* header will continue in next block */
+ bHeaderIsComplete = false;
+ dwHeaderPartLen = dwSize-dwOffsetSource;
+ }
+
+ /* copy the available portion of header to persistent copy */
+ memcpy(((char *)&pContext->header_stream)+dwOffsetTarget, ((char *)pBuffer)+dwOffsetSource, dwHeaderPartLen);
+
+ /* recalculate position of next header */
+ if (bHeaderIsComplete) {
+ /* convert stream name size (32 bit little endian) to machine type */
+ int32_t dwNameSize;
+ int32_LE2BE (&dwNameSize, pContext->header_stream.dwStreamNameSize);
+ dwDataOffset = dwNameSize+pContext->liNextHeader+dwSizeHeader;
+
+ /* convert stream size (64 bit little endian) to machine type */
+ int64_LE2BE (&(pContext->liNextHeader), pContext->header_stream.Size);
+ pContext->liNextHeader += dwDataOffset;
+
+ pContext->bIsInData = pContext->header_stream.dwStreamId == WIN32_BACKUP_DATA;
+ if (dwDataOffset == dwSize)
+ bContinue = false;
+ } else {
+ /* stop and continue with next block */
+ bContinue = false;
+ pContext->bIsInData = false;
+ }
+ }
+ } while (bContinue);
-#if defined(HAVE_CYGWIN) || defined(HAVE_WIN32)
+ /* set "NextHeader" relative to the beginning of the next block */
+ pContext->liNextHeader-= dwSize;
+
+ return TRUE;
+}
-void unix_name_to_win32(POOLMEM **win32_name, char *name);
-extern "C" HANDLE get_osfhandle(int fd);
+/* ===============================================================
+ *
+ * U N I X
+ *
+ * ===============================================================
+ */
+/* Unix */
void binit(BFILE *bfd)
{
memset(bfd, 0, sizeof(BFILE));
bfd->fid = -1;
- bfd->mode = BF_CLOSED;
- bfd->use_backup_api = have_win32_api();
- bfd->errmsg = NULL;
- bfd->lpContext = NULL;
- bfd->lerror = 0;
- bfd->berrno = 0;
+}
+
+/* Unix */
+bool have_win32_api()
+{
+ return false; /* no can do */
}
/*
* Enables using the Backup API (win32_data).
- * Returns 1 if function worked
- * Returns 0 if failed (i.e. do not have Backup API on this machine)
+ * Returns true if function worked
+ * Returns false if failed (i.e. do not have Backup API on this machine)
*/
-int set_win32_backup(BFILE *bfd)
+/* Unix */
+bool set_win32_backup(BFILE *bfd)
{
- /* We enable if possible here */
- bfd->use_backup_api = have_win32_api();
- return bfd->use_backup_api;
+ return false; /* no can do */
}
-int set_portable_backup(BFILE *bfd)
+/* Unix */
+bool set_portable_backup(BFILE *bfd)
{
- bfd->use_backup_api = 0;
- return 1;
+ return true; /* no problem */
}
/*
- * Return 1 if we are NOT using Win32 BackupWrite()
- * return 0 if are
+ * Return true if we are writing in portable format
+ * return false if not
*/
-int is_portable_backup(BFILE *bfd)
+/* Unix */
+bool is_portable_backup(BFILE *bfd)
{
- return !bfd->use_backup_api;
+ return true; /* portable by definition */
}
-int have_win32_api()
+/* Unix */
+bool set_prog(BFILE *bfd, char *prog, JCR *jcr)
{
- return p_BackupRead && p_BackupWrite;
+ return false;
}
-
+/* Unix */
+bool set_cmd_plugin(BFILE *bfd, JCR *jcr)
+{
+ bfd->cmd_plugin = true;
+ bfd->jcr = jcr;
+ return true;
+}
/*
- * Return 1 if we support the stream
- * 0 if we do not support the stream
+ * This code is running on a non-Win32 machine
*/
-int is_stream_supported(int stream)
+/* Unix */
+bool is_restore_stream_supported(int stream)
{
/* No Win32 backup on this machine */
- switch (stream) {
+ switch (stream) {
#ifndef HAVE_LIBZ
case STREAM_GZIP_DATA:
case STREAM_SPARSE_GZIP_DATA:
- return 0;
-#endif
- case STREAM_WIN32_DATA:
case STREAM_WIN32_GZIP_DATA:
- return have_win32_api();
+#endif
+#ifndef HAVE_LZO
+ case STREAM_COMPRESSED_DATA:
+ case STREAM_SPARSE_COMPRESSED_DATA:
+ case STREAM_WIN32_COMPRESSED_DATA:
+ case STREAM_ENCRYPTED_FILE_COMPRESSED_DATA:
+ case STREAM_ENCRYPTED_WIN32_COMPRESSED_DATA:
+#endif
+#ifndef HAVE_DARWIN_OS
+ case STREAM_MACOS_FORK_DATA:
+ case STREAM_HFSPLUS_ATTRIBUTES:
+#endif
+ return false;
/* Known streams */
#ifdef HAVE_LIBZ
case STREAM_GZIP_DATA:
case STREAM_SPARSE_GZIP_DATA:
+ case STREAM_WIN32_GZIP_DATA:
+#endif
+#ifdef HAVE_LZO
+ case STREAM_COMPRESSED_DATA:
+ case STREAM_SPARSE_COMPRESSED_DATA:
+ case STREAM_WIN32_COMPRESSED_DATA:
+ case STREAM_ENCRYPTED_FILE_COMPRESSED_DATA:
+ case STREAM_ENCRYPTED_WIN32_COMPRESSED_DATA:
#endif
+ case STREAM_WIN32_DATA:
case STREAM_UNIX_ATTRIBUTES:
case STREAM_FILE_DATA:
- case STREAM_MD5_SIGNATURE:
+ case STREAM_MD5_DIGEST:
case STREAM_UNIX_ATTRIBUTES_EX:
case STREAM_SPARSE_DATA:
case STREAM_PROGRAM_NAMES:
case STREAM_PROGRAM_DATA:
- case STREAM_SHA1_SIGNATURE:
- case 0: /* compatibility with old tapes */
- return 1;
- }
- return 0;
-}
-
-HANDLE bget_handle(BFILE *bfd)
-{
- return bfd->fh;
-}
-
-int bopen(BFILE *bfd, const char *fname, int flags, mode_t mode)
-{
- POOLMEM *win32_fname;
- DWORD dwaccess, dwflags;
-
- /* Convert to Windows path format */
- win32_fname = get_pool_memory(PM_FNAME);
- unix_name_to_win32(&win32_fname, (char *)fname);
-
- if (flags & O_CREAT) { /* Create */
- if (bfd->use_backup_api) {
- dwaccess = GENERIC_WRITE|FILE_ALL_ACCESS|WRITE_OWNER|WRITE_DAC|ACCESS_SYSTEM_SECURITY;
- dwflags = FILE_FLAG_BACKUP_SEMANTICS;
- } else {
- dwaccess = GENERIC_WRITE;
- dwflags = 0;
- }
- bfd->fh = CreateFile(win32_fname,
- dwaccess, /* Requested access */
- 0, /* Shared mode */
- NULL, /* SecurityAttributes */
- CREATE_ALWAYS, /* CreationDisposition */
- dwflags, /* Flags and attributes */
- NULL); /* TemplateFile */
- bfd->mode = BF_WRITE;
-
- } else if (flags & O_WRONLY) { /* Open existing for write */
- if (bfd->use_backup_api) {
-#ifdef HAVE_WIN32
- dwaccess = GENERIC_WRITE|/*FILE_ALL_ACCESS|*/WRITE_OWNER|WRITE_DAC/*|ACCESS_SYSTEM_SECURITY*/;
-#else
- dwaccess = GENERIC_WRITE|FILE_ALL_ACCESS|WRITE_OWNER|WRITE_DAC|ACCESS_SYSTEM_SECURITY;
+ case STREAM_SHA1_DIGEST:
+#ifdef HAVE_SHA2
+ case STREAM_SHA256_DIGEST:
+ case STREAM_SHA512_DIGEST:
#endif
- dwflags = FILE_FLAG_BACKUP_SEMANTICS;
- } else {
- dwaccess = GENERIC_WRITE;
- dwflags = 0;
- }
- bfd->fh = CreateFile(win32_fname,
- dwaccess, /* Requested access */
- 0, /* Shared mode */
- NULL, /* SecurityAttributes */
- OPEN_EXISTING, /* CreationDisposition */
- dwflags, /* Flags and attributes */
- NULL); /* TemplateFile */
- bfd->mode = BF_WRITE;
-
- } else { /* Read */
- if (bfd->use_backup_api) {
- dwaccess = GENERIC_READ|READ_CONTROL|ACCESS_SYSTEM_SECURITY;
- dwflags = FILE_FLAG_BACKUP_SEMANTICS;
- } else {
- dwaccess = GENERIC_READ;
- dwflags = 0;
- }
- bfd->fh = CreateFile(win32_fname,
- dwaccess, /* Requested access */
- FILE_SHARE_READ, /* Shared mode */
- NULL, /* SecurityAttributes */
- OPEN_EXISTING, /* CreationDisposition */
- dwflags, /* Flags and attributes */
- NULL); /* TemplateFile */
- bfd->mode = BF_READ;
- }
-
- if (bfd->fh == INVALID_HANDLE_VALUE) {
- bfd->lerror = GetLastError();
- bfd->berrno = b_errno_win32;
- bfd->mode = BF_CLOSED;
- }
- bfd->errmsg = NULL;
- bfd->lpContext = NULL;
- free_pool_memory(win32_fname);
- return bfd->mode == BF_CLOSED ? -1 : 1;
-}
-
-/*
- * Returns 0 on success
- * -1 on error
- */
-int bclose(BFILE *bfd)
-{
- int stat = 0;
+#ifdef HAVE_CRYPTO
+ case STREAM_SIGNED_DIGEST:
+ case STREAM_ENCRYPTED_FILE_DATA:
+ case STREAM_ENCRYPTED_FILE_GZIP_DATA:
+ case STREAM_ENCRYPTED_WIN32_DATA:
+ case STREAM_ENCRYPTED_WIN32_GZIP_DATA:
+#endif
+#ifdef HAVE_DARWIN_OS
+ case STREAM_MACOS_FORK_DATA:
+ case STREAM_HFSPLUS_ATTRIBUTES:
+#ifdef HAVE_CRYPTO
+ case STREAM_ENCRYPTED_MACOS_FORK_DATA:
+#endif /* HAVE_CRYPTO */
+#endif /* HAVE_DARWIN_OS */
+ case 0: /* compatibility with old tapes */
+ return true;
- if (bfd->errmsg) {
- free_pool_memory(bfd->errmsg);
- bfd->errmsg = NULL;
- }
- if (bfd->mode == BF_CLOSED) {
- return 0;
- }
- if (bfd->use_backup_api && bfd->mode == BF_READ) {
- BYTE buf[10];
- if (!bfd->lpContext && !p_BackupRead(bfd->fh,
- buf, /* buffer */
- (DWORD)0, /* bytes to read */
- &bfd->rw_bytes, /* bytes read */
- 1, /* Abort */
- 1, /* ProcessSecurity */
- &bfd->lpContext)) { /* Read context */
- stat = -1;
- }
- } else if (bfd->use_backup_api && bfd->mode == BF_WRITE) {
- BYTE buf[10];
- if (!bfd->lpContext && !p_BackupWrite(bfd->fh,
- buf, /* buffer */
- (DWORD)0, /* bytes to read */
- &bfd->rw_bytes, /* bytes written */
- 1, /* Abort */
- 1, /* ProcessSecurity */
- &bfd->lpContext)) { /* Write context */
- stat = -1;
- }
}
- if (!CloseHandle(bfd->fh)) {
- stat = -1;
- }
- bfd->mode = BF_CLOSED;
- bfd->lpContext = NULL;
- return stat;
+ return false;
}
-/*
- * Generate error message
- */
-char *berror(BFILE *bfd)
+/* Unix */
+int bopen(BFILE *bfd, const char *fname, uint64_t flags, mode_t mode)
{
- LPTSTR msg;
-
- FormatMessage(FORMAT_MESSAGE_ALLOCATE_BUFFER|
- FORMAT_MESSAGE_FROM_SYSTEM,
- NULL,
- bfd->lerror,
- 0,
- (LPTSTR)&msg,
- 0,
- NULL);
- strip_trailing_junk(msg);
- if (!bfd->errmsg) {
- bfd->errmsg = get_pool_memory(PM_FNAME);
+ if (bfd->cmd_plugin && plugin_bopen) {
+ Dmsg1(400, "call plugin_bopen fname=%s\n", fname);
+ bfd->fid = plugin_bopen(bfd, fname, flags, mode);
+ Dmsg2(400, "Plugin bopen fid=%d file=%s\n", bfd->fid, fname);
+ return bfd->fid;
}
- pm_strcpy(&bfd->errmsg, msg);
- LocalFree(msg);
- return bfd->errmsg;
-}
-/* Returns: bytes read on success
- * 0 on EOF
- * -1 on error
- */
-ssize_t bread(BFILE *bfd, void *buf, size_t count)
-{
- bfd->rw_bytes = 0;
-
- if (bfd->use_backup_api) {
- if (!p_BackupRead(bfd->fh,
- (BYTE *)buf,
- count,
- &bfd->rw_bytes,
- 0, /* no Abort */
- 1, /* Process Security */
- &bfd->lpContext)) { /* Context */
- bfd->lerror = GetLastError();
- bfd->berrno = b_errno_win32;
- return -1;
- }
- } else {
- if (!ReadFile(bfd->fh,
- buf,
- count,
- &bfd->rw_bytes,
- NULL)) {
- bfd->lerror = GetLastError();
- bfd->berrno = b_errno_win32;
- return -1;
- }
- }
+ /* Normal file open */
+ Dmsg1(dbglvl, "open file %s\n", fname);
- return (ssize_t)bfd->rw_bytes;
-}
+ /* We use fnctl to set O_NOATIME if requested to avoid open error */
+ bfd->fid = open(fname, (flags | O_CLOEXEC) & ~O_NOATIME, mode);
-ssize_t bwrite(BFILE *bfd, void *buf, size_t count)
-{
- bfd->rw_bytes = 0;
-
- if (bfd->use_backup_api) {
- if (!p_BackupWrite(bfd->fh,
- (BYTE *)buf,
- count,
- &bfd->rw_bytes,
- 0, /* No abort */
- 1, /* Process Security */
- &bfd->lpContext)) { /* Context */
- bfd->lerror = GetLastError();
- bfd->berrno = b_errno_win32;
- return -1;
- }
- } else {
- if (!WriteFile(bfd->fh,
- buf,
- count,
- &bfd->rw_bytes,
- NULL)) {
- bfd->lerror = GetLastError();
- bfd->berrno = b_errno_win32;
- return -1;
+ /* Set O_NOATIME if possible */
+ if (bfd->fid != -1 && flags & O_NOATIME) {
+ int oldflags = fcntl(bfd->fid, F_GETFL, 0);
+ if (oldflags == -1) {
+ bfd->berrno = errno;
+ close(bfd->fid);
+ bfd->fid = -1;
+ } else {
+ int ret = fcntl(bfd->fid, F_SETFL, oldflags | O_NOATIME);
+ /* EPERM means setting O_NOATIME was not allowed */
+ if (ret == -1 && errno != EPERM) {
+ bfd->berrno = errno;
+ close(bfd->fid);
+ bfd->fid = -1;
+ }
}
}
- return (ssize_t)bfd->rw_bytes;
-}
-
-int is_bopen(BFILE *bfd)
-{
- return bfd->mode != BF_CLOSED;
-}
-
-off_t blseek(BFILE *bfd, off_t offset, int whence)
-{
- /* ****FIXME**** this is needed if we want to read Win32 Archives */
- return -1;
-}
-
-#else /* Unix systems */
+ bfd->berrno = errno;
+ bfd->m_flags = flags;
+ bfd->block = 0;
+ bfd->total_bytes = 0;
+ Dmsg1(400, "Open file %d\n", bfd->fid);
+ errno = bfd->berrno;
-/* ===============================================================
- *
- * U N I X
- *
- * ===============================================================
- */
-void binit(BFILE *bfd)
-{
- memset(bfd, 0, sizeof(BFILE));
- bfd->fid = -1;
-}
+ bfd->win32DecompContext.bIsInData = false;
+ bfd->win32DecompContext.liNextHeader = 0;
-int have_win32_api()
-{
- return 0; /* no can do */
-}
+#if defined(HAVE_POSIX_FADVISE) && defined(POSIX_FADV_WILLNEED)
+ /* If not RDWR or WRONLY must be Read Only */
+ if (bfd->fid != -1 && !(flags & (O_RDWR|O_WRONLY))) {
+ int stat = posix_fadvise(bfd->fid, 0, 0, POSIX_FADV_WILLNEED);
+ Dmsg3(400, "Did posix_fadvise WILLNEED on %s fid=%d stat=%d\n", fname, bfd->fid, stat);
+ }
+#endif
-/*
- * Enables using the Backup API (win32_data).
- * Returns 1 if function worked
- * Returns 0 if failed (i.e. do not have Backup API on this machine)
- */
-int set_win32_backup(BFILE *bfd)
-{
- return 0; /* no can do */
+ return bfd->fid;
}
-
-int set_portable_backup(BFILE *bfd)
+#ifdef HAVE_DARWIN_OS
+/* Open the resource fork of a file. */
+int bopen_rsrc(BFILE *bfd, const char *fname, uint64_t flags, mode_t mode)
{
- return 1; /* no problem */
-}
+ POOLMEM *rsrc_fname;
-/*
- * Return 1 if we are writing in portable format
- * return 0 if not
- */
-int is_portable_backup(BFILE *bfd)
-{
- return 1; /* portable by definition */
+ rsrc_fname = get_pool_memory(PM_FNAME);
+ pm_strcpy(rsrc_fname, fname);
+ pm_strcat(rsrc_fname, _PATH_RSRCFORKSPEC);
+ bopen(bfd, rsrc_fname, flags, mode);
+ free_pool_memory(rsrc_fname);
+ return bfd->fid;
}
+#else /* Unix */
-int is_stream_supported(int stream)
-{
- /* No Win32 backup on this machine */
- switch (stream) {
-#ifndef HAVE_LIBZ
- case STREAM_GZIP_DATA:
- case STREAM_SPARSE_GZIP_DATA:
-#endif
- case STREAM_WIN32_DATA:
- case STREAM_WIN32_GZIP_DATA:
- return 0;
+/* Unix */
+int bopen_rsrc(BFILE *bfd, const char *fname, uint64_t flags, mode_t mode)
+ { return -1; }
- /* Known streams */
-#ifdef HAVE_LIBZ
- case STREAM_GZIP_DATA:
- case STREAM_SPARSE_GZIP_DATA:
#endif
- case STREAM_UNIX_ATTRIBUTES:
- case STREAM_FILE_DATA:
- case STREAM_MD5_SIGNATURE:
- case STREAM_UNIX_ATTRIBUTES_EX:
- case STREAM_SPARSE_DATA:
- case STREAM_PROGRAM_NAMES:
- case STREAM_PROGRAM_DATA:
- case STREAM_SHA1_SIGNATURE:
- case 0: /* compatibility with old tapes */
- return 1;
- }
- return 0;
-}
-int bopen(BFILE *bfd, const char *fname, int flags, mode_t mode)
+/* Unix */
+int bclose(BFILE *bfd)
{
- bfd->fid = open(fname, flags, mode);
- bfd->berrno = errno;
- Dmsg1(400, "Open file %d\n", bfd->fid);
- return bfd->fid;
-}
+ int stat;
+
+ Dmsg2(400, "Close bfd=%p file %d\n", bfd, bfd->fid);
-int bclose(BFILE *bfd)
-{
- int stat;
- Dmsg1(400, "Close file %d\n", bfd->fid);
if (bfd->fid == -1) {
return 0;
}
+ if (bfd->cmd_plugin && plugin_bclose) {
+ stat = plugin_bclose(bfd);
+ bfd->fid = -1;
+ bfd->cmd_plugin = false;
+ return stat;
+ }
+
+#if defined(HAVE_POSIX_FADVISE) && defined(POSIX_FADV_DONTNEED)
+ /* If not RDWR or WRONLY must be Read Only */
+ if (!(bfd->m_flags & (O_RDWR|O_WRONLY))) {
+ fdatasync(bfd->fid); /* sync the file */
+ /* Tell OS we don't need it any more */
+ posix_fadvise(bfd->fid, 0, 0, POSIX_FADV_DONTNEED);
+ Dmsg1(400, "Did posix_fadvise DONTNEED on fid=%d\n", bfd->fid);
+ }
+#endif
+
+ /* Close normal file */
stat = close(bfd->fid);
bfd->berrno = errno;
bfd->fid = -1;
-
+ bfd->cmd_plugin = false;
return stat;
}
+/* Unix */
ssize_t bread(BFILE *bfd, void *buf, size_t count)
{
ssize_t stat;
+
+ if (bfd->cmd_plugin && plugin_bread) {
+ return plugin_bread(bfd, buf, count);
+ }
+
stat = read(bfd->fid, buf, count);
bfd->berrno = errno;
+ bfd->block++;
+ if (stat > 0) {
+ bfd->total_bytes += stat;
+ }
return stat;
}
+/* Unix */
ssize_t bwrite(BFILE *bfd, void *buf, size_t count)
{
ssize_t stat;
- stat = write(bfd->fid, buf, count);
- bfd->berrno = errno;
+
+ if (bfd->cmd_plugin && plugin_bwrite) {
+ stat = plugin_bwrite(bfd, buf, count);
+
+ } else {
+ stat = write(bfd->fid, buf, count);
+ bfd->berrno = errno;
+ }
+
+ bfd->block++;
+ if (stat > 0) {
+ bfd->total_bytes += stat;
+ }
return stat;
}
-int is_bopen(BFILE *bfd)
+/* Unix */
+bool is_bopen(BFILE *bfd)
{
return bfd->fid >= 0;
}
-off_t blseek(BFILE *bfd, off_t offset, int whence)
+/* Unix */
+boffset_t blseek(BFILE *bfd, boffset_t offset, int whence)
{
- off_t pos;
- pos = lseek(bfd->fid, offset, whence);
- bfd->berrno = errno;
- return pos;
-}
+ boffset_t pos;
-char *berror(BFILE *bfd)
-{
- return strerror(bfd->berrno);
+ if (bfd->cmd_plugin && plugin_bwrite) {
+ return plugin_blseek(bfd, offset, whence);
+ }
+ pos = (boffset_t)lseek(bfd->fid, offset, whence);
+ bfd->berrno = errno;
+ return pos;
}
-
-#endif
projects / bacula / bacula / blobdiff