/* * 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; }