/*
* Calculate the chksum of a whole file and updates:
* - digest
* - digest_stream
* - digest_buffer
* - digest_name
*
* Returns: true if digest calculation succeeded.
* false if digest calculation failed.
*/
static bool calculate_file_chksum(JCR *jcr, FF_PKT *ff_pkt, DIGEST **digest,
int *digest_stream, char **digest_buf, const char **digest_name)
{
/*
* Create our digest context.
* If this fails, the digest will be set to NULL and not used.
*/
if (ff_pkt->flags & FO_MD5) {
*digest = crypto_digest_new(jcr, CRYPTO_DIGEST_MD5);
*digest_stream = STREAM_MD5_DIGEST;
} else if (ff_pkt->flags & FO_SHA1) {
*digest = crypto_digest_new(jcr, CRYPTO_DIGEST_SHA1);
*digest_stream = STREAM_SHA1_DIGEST;
} else if (ff_pkt->flags & FO_SHA256) {
*digest = crypto_digest_new(jcr, CRYPTO_DIGEST_SHA256);
*digest_stream = STREAM_SHA256_DIGEST;
} else if (ff_pkt->flags & FO_SHA512) {
*digest = crypto_digest_new(jcr, CRYPTO_DIGEST_SHA512);
*digest_stream = STREAM_SHA512_DIGEST;
}
/*
* compute MD5 or SHA1 hash
*/
if (*digest) {
uint32_t size;
char md[CRYPTO_DIGEST_MAX_SIZE];
size = sizeof(md);
if (digest_file(jcr, ff_pkt, *digest) != 0) {
jcr->JobErrors++;
return false;
}
if (crypto_digest_finalize(*digest, (uint8_t *)md, &size)) {
*digest_buf = (char *)malloc(BASE64_SIZE(size));
*digest_name = crypto_digest_name(*digest);
bin_to_base64(*digest_buf, BASE64_SIZE(size), md, size, true);
}
}
return true;
}
const char *crypto_digest_name(DIGEST *digest)
{
return crypto_digest_name(digest->type);
}
/*
* Called here by find() for each file.
*
* Find the file, compute the MD5 or SHA1 and send it back to the Director
*/
static int verify_file(JCR *jcr, FF_PKT *ff_pkt, bool top_level)
{
POOL_MEM attribs(PM_NAME),
attribsEx(PM_NAME);
int digest_stream = STREAM_NONE;
int status;
DIGEST *digest = NULL;
BSOCK *dir;
if (job_canceled(jcr)) {
return 0;
}
dir = jcr->dir_bsock;
jcr->num_files_examined++; /* bump total file count */
switch (ff_pkt->type) {
case FT_LNKSAVED: /* Hard linked, file already saved */
Dmsg2(30, "FT_LNKSAVED saving: %s => %s\n", ff_pkt->fname, ff_pkt->link);
break;
case FT_REGE:
Dmsg1(30, "FT_REGE saving: %s\n", ff_pkt->fname);
break;
case FT_REG:
Dmsg1(30, "FT_REG saving: %s\n", ff_pkt->fname);
break;
case FT_LNK:
Dmsg2(30, "FT_LNK saving: %s -> %s\n", ff_pkt->fname, ff_pkt->link);
break;
case FT_DIRBEGIN:
jcr->num_files_examined--; /* correct file count */
return 1; /* ignored */
case FT_REPARSE:
case FT_JUNCTION:
case FT_DIREND:
Dmsg1(30, "FT_DIR saving: %s\n", ff_pkt->fname);
break;
case FT_SPEC:
Dmsg1(30, "FT_SPEC saving: %s\n", ff_pkt->fname);
break;
case FT_RAW:
Dmsg1(30, "FT_RAW saving: %s\n", ff_pkt->fname);
break;
case FT_FIFO:
Dmsg1(30, "FT_FIFO saving: %s\n", ff_pkt->fname);
break;
case FT_NOACCESS: {
berrno be;
be.set_errno(ff_pkt->ff_errno);
Jmsg(jcr, M_NOTSAVED, 1, _(" Could not access %s: ERR=%s\n"), ff_pkt->fname, be.bstrerror());
jcr->JobErrors++;
return 1;
}
case FT_NOFOLLOW: {
berrno be;
be.set_errno(ff_pkt->ff_errno);
Jmsg(jcr, M_NOTSAVED, 1, _(" Could not follow link %s: ERR=%s\n"), ff_pkt->fname, be.bstrerror());
jcr->JobErrors++;
return 1;
}
case FT_NOSTAT: {
berrno be;
be.set_errno(ff_pkt->ff_errno);
Jmsg(jcr, M_NOTSAVED, 1, _(" Could not stat %s: ERR=%s\n"), ff_pkt->fname, be.bstrerror());
jcr->JobErrors++;
return 1;
}
case FT_DIRNOCHG:
case FT_NOCHG:
Jmsg(jcr, M_SKIPPED, 1, _(" Unchanged file skipped: %s\n"), ff_pkt->fname);
return 1;
case FT_ISARCH:
Jmsg(jcr, M_SKIPPED, 1, _(" Archive file skipped: %s\n"), ff_pkt->fname);
return 1;
case FT_NORECURSE:
Jmsg(jcr, M_SKIPPED, 1, _(" Recursion turned off. Directory skipped: %s\n"), ff_pkt->fname);
ff_pkt->type = FT_DIREND; /* directory entry was backed up */
break;
case FT_NOFSCHG:
Jmsg(jcr, M_SKIPPED, 1, _(" File system change prohibited. Directory skipped: %s\n"), ff_pkt->fname);
return 1;
case FT_PLUGIN_CONFIG:
case FT_RESTORE_FIRST:
return 1; /* silently skip */
case FT_NOOPEN: {
berrno be;
be.set_errno(ff_pkt->ff_errno);
Jmsg(jcr, M_NOTSAVED, 1, _(" Could not open directory %s: ERR=%s\n"), ff_pkt->fname, be.bstrerror());
jcr->JobErrors++;
return 1;
}
default:
Jmsg(jcr, M_NOTSAVED, 0, _(" Unknown file type %d: %s\n"), ff_pkt->type, ff_pkt->fname);
jcr->JobErrors++;
return 1;
}
/* Encode attributes and possibly extend them */
encode_stat(attribs.c_str(), &ff_pkt->statp, sizeof(ff_pkt->statp), ff_pkt->LinkFI, 0);
encode_attribsEx(jcr, attribsEx.c_str(), ff_pkt);
jcr->lock();
jcr->JobFiles++; /* increment number of files sent */
pm_strcpy(jcr->last_fname, ff_pkt->fname);
jcr->unlock();
/*
* Send file attributes to Director
* File_index
* Stream
* Verify Options
* Filename (full path)
* Encoded attributes
* Link name (if type==FT_LNK)
* For a directory, link is the same as fname, but with trailing
* slash. For a linked file, link is the link.
*/
/* Send file attributes to Director (note different format than for Storage) */
Dmsg2(400, "send ATTR inx=%d fname=%s\n", jcr->JobFiles, ff_pkt->fname);
if (ff_pkt->type == FT_LNK || ff_pkt->type == FT_LNKSAVED) {
status = dir->fsend("%d %d %s %s%c%s%c%s%c", jcr->JobFiles,
STREAM_UNIX_ATTRIBUTES, ff_pkt->VerifyOpts, ff_pkt->fname,
0, attribs.c_str(), 0, ff_pkt->link, 0);
} else if (ff_pkt->type == FT_DIREND || ff_pkt->type == FT_REPARSE ||
ff_pkt->type == FT_JUNCTION) {
/* Here link is the canonical filename (i.e. with trailing slash) */
status = dir->fsend("%d %d %s %s%c%s%c%c", jcr->JobFiles,
STREAM_UNIX_ATTRIBUTES, ff_pkt->VerifyOpts, ff_pkt->link,
0, attribs.c_str(), 0, 0);
} else {
status = dir->fsend("%d %d %s %s%c%s%c%c", jcr->JobFiles,
STREAM_UNIX_ATTRIBUTES, ff_pkt->VerifyOpts, ff_pkt->fname,
0, attribs.c_str(), 0, 0);
}
Dmsg2(20, "filed>dir: attribs len=%d: msg=%s\n", dir->msglen, dir->msg);
if (!status) {
Jmsg(jcr, M_FATAL, 0, _("Network error in send to Director: ERR=%s\n"), bnet_strerror(dir));
return 0;
}
/*
* The remainder of the function is all about getting the checksum.
* First we initialise, then we read files, other streams and Finder Info.
*/
if (ff_pkt->type != FT_LNKSAVED && (S_ISREG(ff_pkt->statp.st_mode) &&
ff_pkt->flags & (FO_MD5|FO_SHA1|FO_SHA256|FO_SHA512))) {
/*
* Create our digest context. If this fails, the digest will be set to NULL
* and not used.
*/
if (ff_pkt->flags & FO_MD5) {
digest = crypto_digest_new(jcr, CRYPTO_DIGEST_MD5);
digest_stream = STREAM_MD5_DIGEST;
} else if (ff_pkt->flags & FO_SHA1) {
digest = crypto_digest_new(jcr, CRYPTO_DIGEST_SHA1);
digest_stream = STREAM_SHA1_DIGEST;
} else if (ff_pkt->flags & FO_SHA256) {
digest = crypto_digest_new(jcr, CRYPTO_DIGEST_SHA256);
digest_stream = STREAM_SHA256_DIGEST;
} else if (ff_pkt->flags & FO_SHA512) {
digest = crypto_digest_new(jcr, CRYPTO_DIGEST_SHA512);
digest_stream = STREAM_SHA512_DIGEST;
}
/* Did digest initialization fail? */
if (digest_stream != STREAM_NONE && digest == NULL) {
Jmsg(jcr, M_WARNING, 0, _("%s digest initialization failed\n"),
stream_to_ascii(digest_stream));
}
/* compute MD5 or SHA1 hash */
if (digest) {
char md[CRYPTO_DIGEST_MAX_SIZE];
uint32_t size;
size = sizeof(md);
if (digest_file(jcr, ff_pkt, digest) != 0) {
jcr->JobErrors++;
goto good_rtn;
}
if (crypto_digest_finalize(digest, (uint8_t *)md, &size)) {
char *digest_buf;
const char *digest_name;
digest_buf = (char *)malloc(BASE64_SIZE(size));
digest_name = crypto_digest_name(digest);
bin_to_base64(digest_buf, BASE64_SIZE(size), md, size, true);
Dmsg3(400, "send inx=%d %s=%s\n", jcr->JobFiles, digest_name, digest_buf);
dir->fsend("%d %d %s *%s-%d*", jcr->JobFiles, digest_stream, digest_buf,
digest_name, jcr->JobFiles);
Dmsg3(20, "filed>dir: %s len=%d: msg=%s\n", digest_name,
dir->msglen, dir->msg);
free(digest_buf);
}
}
}
good_rtn:
if (digest) {
crypto_digest_free(digest);
}
return 1;
}
