/
backup.cc
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/
backup.cc
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/*
BAREOS® - Backup Archiving REcovery Open Sourced
Copyright (C) 2000-2011 Free Software Foundation Europe e.V.
Copyright (C) 2011-2012 Planets Communications B.V.
Copyright (C) 2013-2024 Bareos GmbH & Co. KG
This program is Free Software; you can redistribute it and/or
modify it under the terms of version three of the GNU Affero General Public
License as published by the Free Software Foundation and included
in the file LICENSE.
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
Affero General Public License for more details.
You should have received a copy of the GNU Affero General Public License
along with this program; if not, write to the Free Software
Foundation, Inc., 51 Franklin Street, Fifth Floor, Boston, MA
02110-1301, USA.
*/
// Kern Sibbald, March MM
/**
* @file
* Bareos File Daemon backup.c send file attributes and data to the Storage
* daemon.
*/
#include "include/fcntl_def.h"
#include "include/bareos.h"
#include "include/filetypes.h"
#include "include/streams.h"
#include "filed/filed.h"
#include "filed/filed_globals.h"
#include "filed/accurate.h"
#include "filed/compression.h"
#include "filed/crypto.h"
#include "filed/heartbeat.h"
#include "filed/backup.h"
#include "filed/filed_jcr_impl.h"
#include "include/ch.h"
#include "findlib/attribs.h"
#include "findlib/hardlink.h"
#include "findlib/find_one.h"
#include "lib/attribs.h"
#include "lib/berrno.h"
#include "lib/bsock.h"
#include "lib/btimers.h"
#include "lib/parse_conf.h"
#include "lib/util.h"
#include "lib/version.h"
#include "lib/serial.h"
#include "lib/compression.h"
#include "lib/channel.h"
#include "lib/network_order.h"
#include <cstring>
namespace filedaemon {
#ifdef HAVE_DARWIN_OS
const bool have_darwin_os = true;
#else
const bool have_darwin_os = false;
#endif
#if defined(HAVE_ACL)
const bool have_acl = true;
#else
const bool have_acl = false;
#endif
#if defined(HAVE_XATTR)
const bool have_xattr = true;
#else
const bool have_xattr = false;
#endif
#ifndef compressBound
# define compressBound(sourceLen) \
(sourceLen + (sourceLen >> 12) + (sourceLen >> 14) + (sourceLen >> 25) + 13)
#endif
/* Forward referenced functions */
static int send_data(JobControlRecord* jcr,
int stream,
FindFilesPacket* ff_pkt,
DIGEST* digest,
DIGEST* signature_digest);
bool EncodeAndSendAttributes(JobControlRecord* jcr,
FindFilesPacket* ff_pkt,
int& data_stream);
#if defined(WIN32_VSS)
static void CloseVssBackupSession(JobControlRecord* jcr);
#endif
/**
* Find all the requested files and send them
* to the Storage daemon.
*
* Note, we normally carry on a one-way
* conversation from this point on with the SD, sfd_imply blasting
* data to him. To properly know what is going on, we
* also run a "heartbeat" monitor which reads the socket and
* reacts accordingly (at the moment it has nothing to do
* except echo the heartbeat to the Director).
*/
bool BlastDataToStorageDaemon(JobControlRecord* jcr, crypto_cipher_t cipher)
{
BareosSocket* sd;
bool ok = true;
sd = jcr->store_bsock;
jcr->setJobStatusWithPriorityCheck(JS_Running);
Jmsg(jcr, M_INFO, 0, T_("Version: %s (%s) %s\n"), kBareosVersionStrings.Full,
kBareosVersionStrings.Date, kBareosVersionStrings.GetOsInfo());
Dmsg1(300, "filed: opened data connection %d to stored\n", sd->fd_);
ClientResource* client = nullptr;
{
ResLocker _{my_config};
client = (ClientResource*)my_config->GetNextRes(R_CLIENT, NULL);
}
uint32_t buf_size;
if (client) {
buf_size = client->max_network_buffer_size;
} else {
buf_size = 0; /* use default */
}
if (!sd->SetBufferSize(buf_size, BNET_SETBUF_WRITE)) {
jcr->setJobStatusWithPriorityCheck(JS_ErrorTerminated);
Jmsg(jcr, M_FATAL, 0, T_("Cannot set buffer size FD->SD.\n"));
return false;
}
jcr->buf_size = sd->message_length;
if (!AdjustCompressionBuffers(jcr)) { return false; }
if (!CryptoSessionStart(jcr, cipher)) { return false; }
SetFindOptions((FindFilesPacket*)jcr->fd_impl->ff, jcr->fd_impl->incremental,
jcr->fd_impl->since_time);
// In accurate mode, we overload the find_one check function
if (jcr->accurate) {
SetFindChangedFunction((FindFilesPacket*)jcr->fd_impl->ff,
AccurateCheckFile);
}
auto hb_send = MakeHeartbeatMonitor(jcr);
if (have_acl) {
jcr->fd_impl->acl_data = std::make_unique<AclData>();
jcr->fd_impl->acl_data->u.build
= (acl_build_data_t*)malloc(sizeof(acl_build_data_t));
memset(jcr->fd_impl->acl_data->u.build, 0, sizeof(acl_build_data_t));
jcr->fd_impl->acl_data->u.build->content = GetPoolMemory(PM_MESSAGE);
}
if (have_xattr) {
jcr->fd_impl->xattr_data = std::make_unique<XattrData>();
jcr->fd_impl->xattr_data->u.build
= (xattr_build_data_t*)malloc(sizeof(xattr_build_data_t));
memset(jcr->fd_impl->xattr_data->u.build, 0, sizeof(xattr_build_data_t));
jcr->fd_impl->xattr_data->u.build->content = GetPoolMemory(PM_MESSAGE);
}
// Subroutine SaveFile() is called for each file
if (!FindFiles(jcr, (FindFilesPacket*)jcr->fd_impl->ff, SaveFile,
PluginSave)) {
ok = false; /* error */
jcr->setJobStatusWithPriorityCheck(JS_ErrorTerminated);
}
if (have_acl && jcr->fd_impl->acl_data->u.build->nr_errors > 0) {
Jmsg(jcr, M_WARNING, 0,
T_("Encountered %ld acl errors while doing backup\n"),
jcr->fd_impl->acl_data->u.build->nr_errors);
}
if (have_xattr && jcr->fd_impl->xattr_data->u.build->nr_errors > 0) {
Jmsg(jcr, M_WARNING, 0,
T_("Encountered %ld xattr errors while doing backup\n"),
jcr->fd_impl->xattr_data->u.build->nr_errors);
}
#if defined(WIN32_VSS)
CloseVssBackupSession(jcr);
#endif
AccurateFinish(jcr); /* send deleted or base file list to SD */
hb_send.reset();
sd->signal(BNET_EOD); /* end of sending data */
if (have_acl && jcr->fd_impl->acl_data) {
FreePoolMemory(jcr->fd_impl->acl_data->u.build->content);
free(jcr->fd_impl->acl_data->u.build);
}
if (have_xattr && jcr->fd_impl->xattr_data) {
FreePoolMemory(jcr->fd_impl->xattr_data->u.build->content);
free(jcr->fd_impl->xattr_data->u.build);
}
if (jcr->fd_impl->big_buf) {
free(jcr->fd_impl->big_buf);
jcr->fd_impl->big_buf = NULL;
}
CleanupCompression(jcr);
CryptoSessionEnd(jcr);
Dmsg1(100, "end blast_data ok=%d\n", ok);
return ok;
}
// Save OSX specific resource forks and finder info.
static inline bool SaveRsrcAndFinder(b_save_ctx& bsctx)
{
char flags[FOPTS_BYTES];
int rsrc_stream;
BareosSocket* sd = bsctx.jcr->store_bsock;
bool retval = false;
if (bsctx.ff_pkt->hfsinfo.rsrclength > 0) {
if (BopenRsrc(&bsctx.ff_pkt->bfd, bsctx.ff_pkt->fname, O_RDONLY | O_BINARY,
0)
< 0) {
bsctx.ff_pkt->ff_errno = errno;
BErrNo be;
Jmsg(bsctx.jcr, M_NOTSAVED, -1,
T_(" Cannot open resource fork for \"%s\": ERR=%s.\n"),
bsctx.ff_pkt->fname, be.bstrerror());
bsctx.jcr->JobErrors++;
if (IsBopen(&bsctx.ff_pkt->bfd)) { bclose(&bsctx.ff_pkt->bfd); }
} else {
int status;
memcpy(flags, bsctx.ff_pkt->flags, sizeof(flags));
ClearBit(FO_COMPRESS, bsctx.ff_pkt->flags);
ClearBit(FO_SPARSE, bsctx.ff_pkt->flags);
ClearBit(FO_OFFSETS, bsctx.ff_pkt->flags);
rsrc_stream = BitIsSet(FO_ENCRYPT, flags)
? STREAM_ENCRYPTED_MACOS_FORK_DATA
: STREAM_MACOS_FORK_DATA;
status = send_data(bsctx.jcr, rsrc_stream, bsctx.ff_pkt, bsctx.digest,
bsctx.signing_digest);
memcpy(bsctx.ff_pkt->flags, flags, sizeof(flags));
bclose(&bsctx.ff_pkt->bfd);
if (!status) { goto bail_out; }
}
}
Dmsg1(300, "Saving Finder Info for \"%s\"\n", bsctx.ff_pkt->fname);
sd->fsend("%ld %d 0", bsctx.jcr->JobFiles, STREAM_HFSPLUS_ATTRIBUTES);
Dmsg1(300, "filed>stored:header %s", sd->msg);
PmMemcpy(sd->msg, bsctx.ff_pkt->hfsinfo.fndrinfo, 32);
sd->message_length = 32;
if (bsctx.digest) {
CryptoDigestUpdate(bsctx.digest, (uint8_t*)sd->msg, sd->message_length);
}
if (bsctx.signing_digest) {
CryptoDigestUpdate(bsctx.signing_digest, (uint8_t*)sd->msg,
sd->message_length);
}
sd->send();
sd->signal(BNET_EOD);
retval = true;
bail_out:
return retval;
}
/**
* Setup for digest handling. If this fails, the digest will be set to NULL
* and not used. Note, the digest (file hash) can be any one of the four
* algorithms below.
*
* The signing digest is a single algorithm depending on
* whether or not we have SHA2.
* ****FIXME**** the signing algorithm should really be
* determined a different way!!!!!! What happens if
* sha2 was available during backup but not restore?
*/
static inline bool SetupEncryptionDigests(b_save_ctx& bsctx)
{
bool retval = false;
// TODO landonf: Allow the user to specify the digest algorithm
#ifdef HAVE_SHA2
crypto_digest_t signing_algorithm = CRYPTO_DIGEST_SHA256;
#else
crypto_digest_t signing_algorithm = CRYPTO_DIGEST_SHA1;
#endif
if (BitIsSet(FO_MD5, bsctx.ff_pkt->flags)) {
bsctx.digest = crypto_digest_new(bsctx.jcr, CRYPTO_DIGEST_MD5);
bsctx.digest_stream = STREAM_MD5_DIGEST;
} else if (BitIsSet(FO_SHA1, bsctx.ff_pkt->flags)) {
bsctx.digest = crypto_digest_new(bsctx.jcr, CRYPTO_DIGEST_SHA1);
bsctx.digest_stream = STREAM_SHA1_DIGEST;
} else if (BitIsSet(FO_SHA256, bsctx.ff_pkt->flags)) {
bsctx.digest = crypto_digest_new(bsctx.jcr, CRYPTO_DIGEST_SHA256);
bsctx.digest_stream = STREAM_SHA256_DIGEST;
} else if (BitIsSet(FO_SHA512, bsctx.ff_pkt->flags)) {
bsctx.digest = crypto_digest_new(bsctx.jcr, CRYPTO_DIGEST_SHA512);
bsctx.digest_stream = STREAM_SHA512_DIGEST;
} else if (BitIsSet(FO_XXH128, bsctx.ff_pkt->flags)) {
bsctx.digest = crypto_digest_new(bsctx.jcr, CRYPTO_DIGEST_XXH128);
bsctx.digest_stream = STREAM_XXH128_DIGEST;
}
// Did digest initialization fail?
if (bsctx.digest_stream != STREAM_NONE && bsctx.digest == NULL) {
Jmsg(bsctx.jcr, M_WARNING, 0, T_("%s digest initialization failed\n"),
stream_to_ascii(bsctx.digest_stream));
}
/* Set up signature digest handling. If this fails, the signature digest
* will be set to NULL and not used. */
/* TODO landonf: We should really only calculate the digest once, for
* both verification and signing.
*/
if (bsctx.jcr->fd_impl->crypto.pki_sign) {
bsctx.signing_digest = crypto_digest_new(bsctx.jcr, signing_algorithm);
// Full-stop if a failure occurred initializing the signature digest
if (bsctx.signing_digest == NULL) {
Jmsg(bsctx.jcr, M_NOTSAVED, 0,
T_("%s signature digest initialization failed\n"),
stream_to_ascii(signing_algorithm));
bsctx.jcr->JobErrors++;
goto bail_out;
}
}
// Enable encryption
if (bsctx.jcr->fd_impl->crypto.pki_encrypt) {
SetBit(FO_ENCRYPT, bsctx.ff_pkt->flags);
}
retval = true;
bail_out:
return retval;
}
// Terminate the signing digest and send it to the Storage daemon
static inline bool TerminateSigningDigest(b_save_ctx& bsctx)
{
uint32_t size = 0;
bool retval = false;
SIGNATURE* signature = NULL;
BareosSocket* sd = bsctx.jcr->store_bsock;
if ((signature = crypto_sign_new(bsctx.jcr)) == NULL) {
Jmsg(bsctx.jcr, M_FATAL, 0,
T_("Failed to allocate memory for crypto signature.\n"));
goto bail_out;
}
if (!CryptoSignAddSigner(signature, bsctx.signing_digest,
bsctx.jcr->fd_impl->crypto.pki_keypair)) {
Jmsg(bsctx.jcr, M_FATAL, 0,
T_("An error occurred while signing the stream.\n"));
goto bail_out;
}
// Get signature size
if (!CryptoSignEncode(signature, NULL, &size)) {
Jmsg(bsctx.jcr, M_FATAL, 0,
T_("An error occurred while signing the stream.\n"));
goto bail_out;
}
// Grow the bsock buffer to fit our message if necessary
if (SizeofPoolMemory(sd->msg) < (int32_t)size) {
sd->msg = ReallocPoolMemory(sd->msg, size);
}
// Send our header
sd->fsend("%ld %ld 0", bsctx.jcr->JobFiles, STREAM_SIGNED_DIGEST);
Dmsg1(300, "filed>stored:header %s", sd->msg);
// Encode signature data
if (!CryptoSignEncode(signature, (uint8_t*)sd->msg, &size)) {
Jmsg(bsctx.jcr, M_FATAL, 0,
T_("An error occurred while signing the stream.\n"));
goto bail_out;
}
sd->message_length = size;
sd->send();
sd->signal(BNET_EOD); /* end of checksum */
retval = true;
bail_out:
if (signature) { CryptoSignFree(signature); }
return retval;
}
// Terminate any digest and send it to Storage daemon
static inline bool TerminateDigest(b_save_ctx& bsctx)
{
uint32_t size;
bool retval = false;
BareosSocket* sd = bsctx.jcr->store_bsock;
sd->fsend("%ld %d 0", bsctx.jcr->JobFiles, bsctx.digest_stream);
Dmsg1(300, "filed>stored:header %s", sd->msg);
size = CRYPTO_DIGEST_MAX_SIZE;
// Grow the bsock buffer to fit our message if necessary
if (SizeofPoolMemory(sd->msg) < (int32_t)size) {
sd->msg = ReallocPoolMemory(sd->msg, size);
}
if (!CryptoDigestFinalize(bsctx.digest, (uint8_t*)sd->msg, &size)) {
Jmsg(bsctx.jcr, M_FATAL, 0,
T_("An error occurred finalizing signing the stream.\n"));
goto bail_out;
}
// Keep the checksum if this file is a hardlink
if (bsctx.ff_pkt->linked) {
bsctx.ff_pkt->linked->set_digest(bsctx.digest_stream, sd->msg, size);
}
sd->message_length = size;
sd->send();
sd->signal(BNET_EOD); /* end of checksum */
retval = true;
bail_out:
return retval;
}
static inline bool DoBackupAcl(JobControlRecord* jcr, FindFilesPacket* ff_pkt)
{
bacl_exit_code retval;
jcr->fd_impl->acl_data->filetype = ff_pkt->type;
jcr->fd_impl->acl_data->last_fname = jcr->fd_impl->last_fname;
if (jcr->IsPlugin()) {
retval = PluginBuildAclStreams(jcr, jcr->fd_impl->acl_data.get(), ff_pkt);
} else {
retval = BuildAclStreams(jcr, jcr->fd_impl->acl_data.get(), ff_pkt);
}
switch (retval) {
case bacl_exit_fatal:
return false;
case bacl_exit_error:
Jmsg(jcr, M_ERROR, 0, "%s", jcr->errmsg);
jcr->fd_impl->acl_data->u.build->nr_errors++;
break;
case bacl_exit_ok:
break;
}
return true;
}
static inline bool DoBackupXattr(JobControlRecord* jcr, FindFilesPacket* ff_pkt)
{
BxattrExitCode retval;
jcr->fd_impl->xattr_data->last_fname = jcr->fd_impl->last_fname;
if (jcr->IsPlugin()) {
retval
= PluginBuildXattrStreams(jcr, jcr->fd_impl->xattr_data.get(), ff_pkt);
} else {
retval = BuildXattrStreams(jcr, jcr->fd_impl->xattr_data.get(), ff_pkt);
}
switch (retval) {
case BxattrExitCode::kErrorFatal:
return false;
case BxattrExitCode::kWarning:
Jmsg(jcr, M_WARNING, 0, "%s", jcr->errmsg);
break;
case BxattrExitCode::kError:
Jmsg(jcr, M_ERROR, 0, "%s", jcr->errmsg);
jcr->fd_impl->xattr_data->u.build->nr_errors++;
break;
case BxattrExitCode::kSuccess:
break;
}
return true;
}
/**
* Called here by find() for each file included.
* This is a callback. The original is FindFiles() above.
*
* Send the file and its data to the Storage daemon.
*
* Returns: 1 if OK
* 0 if error
* -1 to ignore file/directory (not used here)
*/
int SaveFile(JobControlRecord* jcr, FindFilesPacket* ff_pkt, bool)
{
bool do_read = false;
bool plugin_started = false;
bool do_plugin_set = false;
int status, data_stream;
int rtnstat = 0;
b_save_ctx bsctx;
bool has_file_data = false;
save_pkt sp; /* use by option plugin */
BareosSocket* sd = jcr->store_bsock;
if (jcr->IsJobCanceled() || jcr->IsIncomplete()) { return 0; }
jcr->fd_impl->num_files_examined++; /* bump total file count */
switch (ff_pkt->type) {
case FT_LNKSAVED: /* Hard linked, file already saved */
Dmsg2(130, "FT_LNKSAVED hard link: %s => %s\n", ff_pkt->fname,
ff_pkt->link);
break;
case FT_REGE:
Dmsg1(130, "FT_REGE saving: %s\n", ff_pkt->fname);
has_file_data = true;
break;
case FT_REG:
Dmsg1(130, "FT_REG saving: %s\n", ff_pkt->fname);
has_file_data = true;
break;
case FT_LNK:
Dmsg2(130, "FT_LNK saving: %s -> %s\n", ff_pkt->fname, ff_pkt->link);
break;
case FT_RESTORE_FIRST:
Dmsg1(100, "FT_RESTORE_FIRST saving: %s\n", ff_pkt->fname);
break;
case FT_PLUGIN_CONFIG:
Dmsg1(100, "FT_PLUGIN_CONFIG saving: %s\n", ff_pkt->fname);
break;
case FT_DIRBEGIN:
jcr->fd_impl->num_files_examined--; /* correct file count */
return 1; /* not used */
case FT_NORECURSE:
Jmsg(jcr, M_INFO, 1,
T_(" Recursion turned off. Will not descend from %s into %s\n"),
ff_pkt->top_fname, ff_pkt->fname);
ff_pkt->type = FT_DIREND; /* Backup only the directory entry */
break;
case FT_NOFSCHG:
/* Suppress message for /dev filesystems */
if (!IsInFileset(ff_pkt)) {
Jmsg(jcr, M_INFO, 1,
T_(" %s is a different filesystem. Will not descend from %s "
"into it.\n"),
ff_pkt->fname, ff_pkt->top_fname);
}
ff_pkt->type = FT_DIREND; /* Backup only the directory entry */
break;
case FT_INVALIDFS:
Jmsg(jcr, M_INFO, 1,
T_(" Disallowed filesystem. Will not descend from %s into %s\n"),
ff_pkt->top_fname, ff_pkt->fname);
ff_pkt->type = FT_DIREND; /* Backup only the directory entry */
break;
case FT_INVALIDDT:
Jmsg(jcr, M_INFO, 1,
T_(" Disallowed drive type. Will not descend into %s\n"),
ff_pkt->fname);
break;
case FT_REPARSE:
case FT_JUNCTION:
case FT_DIREND:
Dmsg1(130, "FT_DIREND: %s\n", ff_pkt->link);
break;
case FT_SPEC:
Dmsg1(130, "FT_SPEC saving: %s\n", ff_pkt->fname);
if (S_ISSOCK(ff_pkt->statp.st_mode)) {
Jmsg(jcr, M_SKIPPED, 1, T_(" Socket file skipped: %s\n"),
ff_pkt->fname);
return 1;
}
break;
case FT_RAW:
Dmsg1(130, "FT_RAW saving: %s\n", ff_pkt->fname);
has_file_data = true;
break;
case FT_FIFO:
Dmsg1(130, "FT_FIFO saving: %s\n", ff_pkt->fname);
break;
case FT_NOACCESS: {
BErrNo be;
Jmsg(jcr, M_NOTSAVED, 0, T_(" Could not access \"%s\": ERR=%s\n"),
ff_pkt->fname, be.bstrerror(ff_pkt->ff_errno));
jcr->JobErrors++;
return 1;
}
case FT_NOFOLLOW: {
BErrNo be;
Jmsg(jcr, M_NOTSAVED, 0,
T_(" Could not follow link \"%s\": ERR=%s\n"), ff_pkt->fname,
be.bstrerror(ff_pkt->ff_errno));
jcr->JobErrors++;
return 1;
}
case FT_NOSTAT: {
BErrNo be;
Jmsg(jcr, M_NOTSAVED, 0, T_(" Could not stat \"%s\": ERR=%s\n"),
ff_pkt->fname, be.bstrerror(ff_pkt->ff_errno));
jcr->JobErrors++;
return 1;
}
case FT_DIRNOCHG:
case FT_NOCHG:
Jmsg(jcr, M_SKIPPED, 1, T_(" Unchanged file skipped: %s\n"),
ff_pkt->fname);
return 1;
case FT_ISARCH:
Jmsg(jcr, M_NOTSAVED, 0, T_(" Archive file not saved: %s\n"),
ff_pkt->fname);
return 1;
case FT_NOOPEN: {
BErrNo be;
Jmsg(jcr, M_NOTSAVED, 0,
T_(" Could not open directory \"%s\": ERR=%s\n"), ff_pkt->fname,
be.bstrerror(ff_pkt->ff_errno));
jcr->JobErrors++;
return 1;
}
case FT_DELETED:
Dmsg1(130, "FT_DELETED: %s\n", ff_pkt->fname);
break;
default:
Jmsg(jcr, M_NOTSAVED, 0, T_(" Unknown file type %d; not saved: %s\n"),
ff_pkt->type, ff_pkt->fname);
jcr->JobErrors++;
return 1;
}
Dmsg1(130, "filed: sending %s to stored\n", ff_pkt->fname);
// Setup backup signing context.
memset(&bsctx, 0, sizeof(b_save_ctx));
bsctx.digest_stream = STREAM_NONE;
bsctx.jcr = jcr;
bsctx.ff_pkt = ff_pkt;
// Digests and encryption are only useful if there's file data
if (has_file_data) {
if (!SetupEncryptionDigests(bsctx)) { goto good_rtn; }
}
// Initialize the file descriptor we use for data and other streams.
binit(&ff_pkt->bfd);
if (BitIsSet(FO_PORTABLE, ff_pkt->flags)) {
SetPortableBackup(&ff_pkt->bfd); /* disable Win32 BackupRead() */
}
// Option and cmd plugin are not compatible together
if (ff_pkt->cmd_plugin) {
do_plugin_set = true;
} else if (ff_pkt->opt_plugin) {
// Ask the option plugin what to do with this file
switch (PluginOptionHandleFile(jcr, ff_pkt, &sp)) {
case bRC_OK:
Dmsg2(10, "Option plugin %s will be used to backup %s\n",
ff_pkt->plugin, ff_pkt->fname);
jcr->opt_plugin = true;
jcr->fd_impl->plugin_sp = &sp;
PluginUpdateFfPkt(ff_pkt, &sp);
do_plugin_set = true;
break;
case bRC_Skip:
Dmsg2(10, "Option plugin %s decided to skip %s\n", ff_pkt->plugin,
ff_pkt->fname);
goto good_rtn;
case bRC_Core:
Dmsg2(10, "Option plugin %s decided to let bareos handle %s\n",
ff_pkt->plugin, ff_pkt->fname);
break;
default:
goto bail_out;
}
}
if (do_plugin_set) {
// Tell bfile that it needs to call plugin
if (!SetCmdPlugin(&ff_pkt->bfd, jcr)) { goto bail_out; }
SendPluginName(jcr, sd, true); /* signal start of plugin data */
plugin_started = true;
}
// Send attributes -- must be done after binit()
if (!EncodeAndSendAttributes(jcr, ff_pkt, data_stream)) { goto bail_out; }
// Meta data only for restore object
if (IS_FT_OBJECT(ff_pkt->type)) { goto good_rtn; }
// Meta data only for deleted files
if (ff_pkt->type == FT_DELETED) { goto good_rtn; }
// Set up the encryption context and send the session data to the SD
if (has_file_data && jcr->fd_impl->crypto.pki_encrypt) {
if (!CryptoSessionSend(jcr, sd)) { goto bail_out; }
}
/* For a command plugin use the setting from the plugins savepkt no_read field
* which is saved in the ff_pkt->no_read variable. do_read is the inverted
* value of this variable as no_read == TRUE means do_read == FALSE */
if (ff_pkt->cmd_plugin) {
do_read = !ff_pkt->no_read;
} else {
/* Open any file with data that we intend to save, then save it.
*
* Note, if is_win32_backup, we must open the Directory so that
* the BackupRead will save its permissions and ownership streams. */
if (ff_pkt->type != FT_LNKSAVED && S_ISREG(ff_pkt->statp.st_mode)) {
#ifdef HAVE_WIN32
do_read = !IsPortableBackup(&ff_pkt->bfd) || ff_pkt->statp.st_size > 0;
#else
do_read = ff_pkt->statp.st_size > 0;
#endif
} else if (ff_pkt->type == FT_RAW || ff_pkt->type == FT_FIFO
|| ff_pkt->type == FT_REPARSE || ff_pkt->type == FT_JUNCTION
|| (!IsPortableBackup(&ff_pkt->bfd)
&& ff_pkt->type == FT_DIREND)) {
do_read = true;
}
}
Dmsg2(150, "type=%d do_read=%d\n", ff_pkt->type, do_read);
if (do_read) {
btimer_t* tid;
int noatime;
if (ff_pkt->type == FT_FIFO) {
tid = start_thread_timer(jcr, pthread_self(), 60);
} else {
tid = NULL;
}
noatime = BitIsSet(FO_NOATIME, ff_pkt->flags) ? O_NOATIME : 0;
ff_pkt->bfd.reparse_point
= (ff_pkt->type == FT_REPARSE || ff_pkt->type == FT_JUNCTION);
if (bopen(&ff_pkt->bfd, ff_pkt->fname, O_RDONLY | O_BINARY | noatime, 0,
ff_pkt->statp.st_rdev)
< 0) {
ff_pkt->ff_errno = errno;
BErrNo be;
Jmsg(jcr, M_NOTSAVED, 0, T_(" Cannot open \"%s\": ERR=%s.\n"),
ff_pkt->fname, be.bstrerror());
jcr->JobErrors++;
if (tid) {
StopThreadTimer(tid);
tid = NULL;
}
goto good_rtn;
}
if (tid) {
StopThreadTimer(tid);
tid = NULL;
}
status = send_data(jcr, data_stream, ff_pkt, bsctx.digest,
bsctx.signing_digest);
if (BitIsSet(FO_CHKCHANGES, ff_pkt->flags)) { HasFileChanged(jcr, ff_pkt); }
bclose(&ff_pkt->bfd);
if (!status) { goto bail_out; }
}
if (have_darwin_os) {
// Regular files can have resource forks and Finder Info
if (ff_pkt->type != FT_LNKSAVED
&& (S_ISREG(ff_pkt->statp.st_mode)
&& BitIsSet(FO_HFSPLUS, ff_pkt->flags))) {
if (!SaveRsrcAndFinder(bsctx)) { goto bail_out; }
}
}
// Save ACLs when requested and available for anything not being a symlink.
if (have_acl) {
if (BitIsSet(FO_ACL, ff_pkt->flags) && ff_pkt->type != FT_LNK) {
if (!DoBackupAcl(jcr, ff_pkt)) { goto bail_out; }
}
}
// Save Extended Attributes when requested and available for all files.
if (have_xattr) {
if (BitIsSet(FO_XATTR, ff_pkt->flags)) {
if (!DoBackupXattr(jcr, ff_pkt)) { goto bail_out; }
}
}
// Terminate the signing digest and send it to the Storage daemon
if (bsctx.signing_digest) {
if (!TerminateSigningDigest(bsctx)) { goto bail_out; }
}
// Terminate any digest and send it to Storage daemon
if (bsctx.digest) {
if (!TerminateDigest(bsctx)) { goto bail_out; }
}
// Check if original file has a digest, and send it
if (ff_pkt->type == FT_LNKSAVED && ff_pkt->digest) {
Dmsg2(300, "Link %s digest %d\n", ff_pkt->fname, ff_pkt->digest_len);
sd->fsend("%ld %d 0", jcr->JobFiles, ff_pkt->digest_stream);
sd->msg = CheckPoolMemorySize(sd->msg, ff_pkt->digest_len);
memcpy(sd->msg, ff_pkt->digest, ff_pkt->digest_len);
sd->message_length = ff_pkt->digest_len;
sd->send();
sd->signal(BNET_EOD); /* end of hardlink record */
}
good_rtn:
rtnstat = jcr->IsJobCanceled() ? 0 : 1; /* good return if not canceled */
bail_out:
if (jcr->IsIncomplete() || jcr->IsJobCanceled()) { rtnstat = 0; }
if (plugin_started) {
SendPluginName(jcr, sd, false); /* signal end of plugin data */
}
if (ff_pkt->opt_plugin) {
jcr->fd_impl->plugin_sp = NULL; /* sp is local to this function */
jcr->opt_plugin = false;
}
if (bsctx.digest) { CryptoDigestFree(bsctx.digest); }
if (bsctx.signing_digest) { CryptoDigestFree(bsctx.signing_digest); }
return rtnstat;
}
/**
* Handle the data just read and send it to the SD after doing any
* postprocessing needed.
*/
static inline bool SendDataToSd(b_ctx* bctx)
{
BareosSocket* sd = bctx->jcr->store_bsock;
bool need_more_data;
// Check for sparse blocks
if (BitIsSet(FO_SPARSE, bctx->ff_pkt->flags)) {
bool allZeros;
ser_declare;
allZeros = false;
if ((sd->message_length == bctx->rsize
&& (bctx->fileAddr + sd->message_length
< (uint64_t)bctx->ff_pkt->statp.st_size))
|| ((bctx->ff_pkt->type == FT_RAW || bctx->ff_pkt->type == FT_FIFO)
&& ((uint64_t)bctx->ff_pkt->statp.st_size == 0))) {
allZeros = IsBufZero(bctx->rbuf, bctx->rsize);
}
if (!allZeros) {
// Put file address as first data in buffer
SerBegin(bctx->wbuf, OFFSET_FADDR_SIZE);
ser_uint64(bctx->fileAddr); /* store fileAddr in begin of buffer */
}
bctx->fileAddr += sd->message_length; /* update file address */
// Skip block of all zeros
if (allZeros) { return true; }
} else if (BitIsSet(FO_OFFSETS, bctx->ff_pkt->flags)) {
ser_declare;
SerBegin(bctx->wbuf, OFFSET_FADDR_SIZE);
ser_uint64(bctx->ff_pkt->bfd.offset); /* store offset in begin of buffer */
}
bctx->jcr->ReadBytes += sd->message_length; /* count bytes read */
// Uncompressed cipher input length
bctx->cipher_input_len = sd->message_length;
// Update checksum if requested
if (bctx->digest) {
CryptoDigestUpdate(bctx->digest, (uint8_t*)bctx->rbuf, sd->message_length);
}
// Update signing digest if requested
if (bctx->signing_digest) {
CryptoDigestUpdate(bctx->signing_digest, (uint8_t*)bctx->rbuf,
sd->message_length);
}
// Compress the data.
if (BitIsSet(FO_COMPRESS, bctx->ff_pkt->flags)) {
if (!CompressData(bctx->jcr, bctx->ff_pkt->Compress_algo, bctx->rbuf,
bctx->jcr->store_bsock->message_length, bctx->cbuf,
bctx->max_compress_len, &bctx->compress_len)) {
return false;
}
// See if we need to generate a compression header.
if (bctx->chead) {
ser_declare;
// Complete header
SerBegin(bctx->chead, sizeof(comp_stream_header));
ser_uint32(bctx->ch.magic);
ser_uint32(bctx->compress_len);
ser_uint16(bctx->ch.level);
ser_uint16(bctx->ch.version);
SerEnd(bctx->chead, sizeof(comp_stream_header));
bctx->compress_len += sizeof(comp_stream_header); /* add size of header */
}
bctx->jcr->store_bsock->message_length
= bctx->compress_len; /* set compressed length */
bctx->cipher_input_len = bctx->compress_len;
}
// Encrypt the data.
need_more_data = false;
if (BitIsSet(FO_ENCRYPT, bctx->ff_pkt->flags)
&& !EncryptData(bctx, &need_more_data)) {
if (need_more_data) { return true; }
return false;
}
// Send the buffer to the Storage daemon
if (BitIsSet(FO_SPARSE, bctx->ff_pkt->flags)
|| BitIsSet(FO_OFFSETS, bctx->ff_pkt->flags)) {
sd->message_length += OFFSET_FADDR_SIZE; /* include fileAddr in size */
}
sd->msg = bctx->wbuf; /* set correct write buffer */
if (!sd->send()) {
if (!bctx->jcr->IsJobCanceled()) {
Jmsg1(bctx->jcr, M_FATAL, 0, T_("Network send error to SD. ERR=%s\n"),
sd->bstrerror());
}
return false;
}
Dmsg1(130, "Send data to SD len=%d\n", sd->message_length);
bctx->jcr->JobBytes += sd->message_length; /* count bytes saved possibly
compressed/encrypted */
sd->msg = bctx->msgsave; /* restore read buffer */
return true;
}
#ifdef HAVE_WIN32
// Callback method for ReadEncryptedFileRaw()
static DWORD WINAPI send_efs_data(PBYTE pbData,
PVOID pvCallbackContext,
ULONG ulLength)
{
b_ctx* bctx = (b_ctx*)pvCallbackContext;
BareosSocket* sd = bctx->jcr->store_bsock;
if (ulLength == 0) { return ERROR_SUCCESS; }
/* See if we can fit the data into the current bctx->rbuf which can hold
* bctx->rsize bytes. */
if (ulLength <= (ULONG)bctx->rsize) {
sd->message_length = ulLength;
memcpy(bctx->rbuf, pbData, ulLength);
if (!SendDataToSd(bctx)) { return ERROR_NET_WRITE_FAULT; }
} else {
// Need to chunk the data into pieces.
ULONG offset = 0;
while (ulLength > 0) {
sd->message_length = MIN((ULONG)bctx->rsize, ulLength);
memcpy(bctx->rbuf, pbData + offset, sd->message_length);
if (!SendDataToSd(bctx)) { return ERROR_NET_WRITE_FAULT; }
offset += sd->message_length;
ulLength -= sd->message_length;
}
}
return ERROR_SUCCESS;
}
// Send the content of an Encrypted file on an EFS filesystem.
static inline bool SendEncryptedData(b_ctx& bctx)
{
bool retval = false;