X-Git-Url: https://git.sur5r.net/?a=blobdiff_plain;f=bacula%2Fsrc%2Ffiled%2Frestore.c;h=f9e8c5f8cb827b2f3db94c28b0335364fc22919b;hb=5c53840c9a02cefaaa45aee96c02c6f9cdaf3703;hp=2a197a51168d736063dd3b93552dd9f3b566e098;hpb=6067011f47ec083e9c57ba05d9fe0abf3bb181d8;p=bacula%2Fbacula diff --git a/bacula/src/filed/restore.c b/bacula/src/filed/restore.c index 2a197a5116..f9e8c5f8cb 100644 --- a/bacula/src/filed/restore.c +++ b/bacula/src/filed/restore.c @@ -1,14 +1,14 @@ /* Bacula® - The Network Backup Solution - Copyright (C) 2000-2007 Free Software Foundation Europe e.V. + Copyright (C) 2000-2008 Free Software Foundation Europe e.V. The main author of Bacula is Kern Sibbald, with contributions from many others, a complete list can be found in the file AUTHORS. This program is Free Software; you can redistribute it and/or modify it under the terms of version two of the GNU General Public - License as published by the Free Software Foundation plus additions - that are listed in the file LICENSE. + 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 @@ -20,7 +20,7 @@ Foundation, Inc., 51 Franklin Street, Fifth Floor, Boston, MA 02110-1301, USA. - Bacula® is a registered trademark of John Walker. + Bacula® is a registered trademark of Kern Sibbald. The licensor of Bacula is the Free Software Foundation Europe (FSFE), Fiduciary Program, Sumatrastrasse 25, 8006 Zürich, Switzerland, email:ftf@fsfeurope.org. @@ -30,8 +30,6 @@ * * Kern Sibbald, November MM * - * Version $Id$ - * */ #include "bacula.h" @@ -56,6 +54,18 @@ const bool have_acl = true; const bool have_acl = false; #endif +#ifdef HAVE_SHA2 +const bool have_sha2 = true; +#else +const bool have_sha2 = false; +#endif + +#if defined(HAVE_XATTR) +const bool have_xattr = true; +#else +const bool have_xattr = false; +#endif + /* Data received from Storage Daemon */ static char rec_header[] = "rechdr %ld %ld %ld %ld %ld"; @@ -76,14 +86,17 @@ struct r_ctx { uint64_t fileAddr; /* file write address */ uint32_t size; /* Size of file */ int flags; /* Options for extract_data() */ - BFILE forkbfd; /* Alternative data stream */ - uint64_t fork_addr; /* Write address for alternative stream */ - intmax_t fork_size; /* Size of alternate stream */ - int fork_flags; /* Options for extract_data() */ + BFILE forkbfd; /* Alternative data stream */ + uint64_t fork_addr; /* Write address for alternative stream */ + intmax_t fork_size; /* Size of alternate stream */ + int fork_flags; /* Options for extract_data() */ + int32_t type; /* file type FT_ */ + ATTR *attr; /* Pointer to attributes */ + bool extract; /* set when extracting */ SIGNATURE *sig; /* Cryptographic signature (if any) for file */ CRYPTO_SESSION *cs; /* Cryptographic session data (if any) for file */ - RESTORE_CIPHER_CTX cipher_ctx; /* Cryptographic restore context (if any) for file */ + RESTORE_CIPHER_CTX cipher_ctx; /* Cryptographic restore context (if any) for file */ RESTORE_CIPHER_CTX fork_cipher_ctx; /* Cryptographic restore context (if any) for alternative stream */ }; @@ -100,10 +113,11 @@ static void deallocate_cipher(r_ctx &rctx); static void deallocate_fork_cipher(r_ctx &rctx); static void free_signature(r_ctx &rctx); static void free_session(r_ctx &rctx); +static void close_previous_stream(r_ctx &rctx); -static bool verify_signature(JCR *jcr, SIGNATURE *sig); +static bool verify_signature(JCR *jcr, r_ctx &rctx); int32_t extract_data(JCR *jcr, BFILE *bfd, POOLMEM *buf, int32_t buflen, uint64_t *addr, int flags, RESTORE_CIPHER_CTX *cipher_ctx); bool flush_cipher(JCR *jcr, BFILE *bfd, uint64_t *addr, int flags, @@ -112,9 +126,9 @@ bool flush_cipher(JCR *jcr, BFILE *bfd, uint64_t *addr, int flags, /* * Close a bfd check that we are at the expected file offset. - * Makes some code in set_attributes(). + * Makes use of some code from set_attributes(). */ -int bclose_chksize(JCR *jcr, BFILE *bfd, boffset_t osize) +static int bclose_chksize(JCR *jcr, BFILE *bfd, boffset_t osize) { char ec1[50], ec2[50]; boffset_t fsize; @@ -139,15 +153,16 @@ void do_restore(JCR *jcr) { BSOCK *sd; uint32_t VolSessionId, VolSessionTime; - bool extract = false; int32_t file_index; char ec1[50]; /* Buffer printing huge values */ uint32_t buf_size; /* client buffer size */ int stat; - ATTR *attr; intmax_t rsrc_len = 0; /* Original length of resource fork */ r_ctx rctx; - + ATTR *attr; + /* ***FIXME*** make configurable */ + crypto_digest_t signing_algorithm = have_sha2 ? + CRYPTO_DIGEST_SHA256 : CRYPTO_DIGEST_SHA1; memset(&rctx, 0, sizeof(rctx)); rctx.jcr = jcr; @@ -159,6 +174,7 @@ void do_restore(JCR *jcr) int non_support_acl = 0; int non_support_progname = 0; int non_support_crypto = 0; + int non_support_xattr = 0; #ifdef HAVE_DARWIN_OS struct attrlist attrList; @@ -185,11 +201,11 @@ void do_restore(JCR *jcr) } jcr->buf_size = sd->msglen; - /* St Bernard code goes here if implemented */ + /* St Bernard code goes here if implemented -- see end of file */ if (have_libz) { uint32_t compress_buf_size = jcr->buf_size + 12 + ((jcr->buf_size+999) / 1000) + 100; - jcr->compress_buf = (char *)bmalloc(compress_buf_size); + jcr->compress_buf = get_memory(compress_buf_size); jcr->compress_buf_size = compress_buf_size; } @@ -204,15 +220,16 @@ void do_restore(JCR *jcr) * Get a record from the Storage daemon. We are guaranteed to * receive records in the following order: * 1. Stream record header - * 2. Stream data + * 2. Stream data (one or more of the following in the order given) * a. Attributes (Unix or Win32) * b. Possibly stream encryption session data (e.g., symmetric session key) - * or c. File data for the file - * or d. Alternate data stream (e.g. Resource Fork) - * or e. Finder info - * or f. ACLs - * or g. Possibly a cryptographic signature - * or h. Possibly MD5 or SHA1 record + * c. File data for the file + * d. Alternate data stream (e.g. Resource Fork) + * e. Finder info + * f. ACLs + * g. XATTRs + * h. Possibly a cryptographic signature + * i. Possibly MD5 or SHA1 record * 3. Repeat step 1 * * NOTE: We keep track of two bacula file descriptors: @@ -225,11 +242,22 @@ void do_restore(JCR *jcr) * close it again. * The expected size of the stream, fork_len, should be set when * opening the fd. + * 3. Not all the stream data records are required -- e.g. if there + * is no fork, there is no alternate data stream, no ACL, ... */ binit(&rctx.bfd); binit(&rctx.forkbfd); - attr = new_attr(); - jcr->acl_text = get_pool_memory(PM_MESSAGE); + attr = rctx.attr = new_attr(jcr); + if (have_acl) { + jcr->acl_data = (acl_data_t *)malloc(sizeof(acl_data_t)); + memset((caddr_t)jcr->acl_data, 0, sizeof(acl_data_t)); + jcr->acl_data->content = get_pool_memory(PM_MESSAGE); + } + if (have_xattr) { + jcr->xattr_data = (xattr_data_t *)malloc(sizeof(xattr_data_t)); + memset((caddr_t)jcr->xattr_data, 0, sizeof(xattr_data_t)); + jcr->xattr_data->content = get_pool_memory(PM_MESSAGE); + } while (bget_msg(sd) >= 0 && !job_canceled(jcr)) { /* Remember previous stream type */ @@ -241,21 +269,23 @@ void do_restore(JCR *jcr) Jmsg1(jcr, M_FATAL, 0, _("Record header scan error: %s\n"), sd->msg); goto bail_out; } - Dmsg4(30, "Got hdr: Files=%d FilInx=%d Stream=%d, %s.\n", - jcr->JobFiles, file_index, rctx.stream, stream_to_ascii(rctx.stream)); + Dmsg5(50, "Got hdr: Files=%d FilInx=%d size=%d Stream=%d, %s.\n", + jcr->JobFiles, file_index, rctx.size, rctx.stream, stream_to_ascii(rctx.stream)); /* * Now we expect the Stream Data */ if (bget_msg(sd) < 0) { - Jmsg1(jcr, M_FATAL, 0, _("Data record error. ERR=%s\n"), bnet_strerror(sd)); + Jmsg1(jcr, M_FATAL, 0, _("Data record error. ERR=%s\n"), sd->bstrerror()); goto bail_out; } if (rctx.size != (uint32_t)sd->msglen) { Jmsg2(jcr, M_FATAL, 0, _("Actual data size %d not same as header %d\n"), sd->msglen, rctx.size); + Dmsg2(50, "Actual data size %d not same as header %d\n", + sd->msglen, rctx.size); goto bail_out; } - Dmsg3(30, "Got stream: %s len=%d extract=%d\n", stream_to_ascii(rctx.stream), - sd->msglen, extract); + Dmsg3(130, "Got stream: %s len=%d extract=%d\n", stream_to_ascii(rctx.stream), + sd->msglen, rctx.extract); /* If we change streams, close and reset alternate data streams */ if (rctx.prev_stream != rctx.stream) { @@ -271,34 +301,12 @@ void do_restore(JCR *jcr) switch (rctx.stream) { case STREAM_UNIX_ATTRIBUTES: case STREAM_UNIX_ATTRIBUTES_EX: - /* - * If extracting, it was from previous stream, so - * close the output file and validate the signature. - */ - if (extract) { - if (rctx.size > 0 && !is_bopen(&rctx.bfd)) { - Jmsg0(jcr, M_ERROR, 0, _("Logic error: output file should be open\n")); - } - - if (rctx.prev_stream != STREAM_ENCRYPTED_SESSION_DATA) { - deallocate_cipher(rctx); - deallocate_fork_cipher(rctx); - } - - set_attributes(jcr, attr, &rctx.bfd); - extract = false; + close_previous_stream(rctx); /* if any previous stream open, close it */ - /* Verify the cryptographic signature, if any */ - verify_signature(jcr, rctx.sig); - /* Free Signature */ - free_signature(rctx); - free_session(rctx); - jcr->ff->flags = 0; - Dmsg0(30, "Stop extracting.\n"); - } else if (is_bopen(&rctx.bfd)) { - Jmsg0(jcr, M_ERROR, 0, _("Logic error: output file should not be open\n")); - bclose(&rctx.bfd); + /* TODO: manage deleted files */ + if (rctx.type == FT_DELETED) { /* deleted file */ + continue; } /* @@ -307,12 +315,14 @@ void do_restore(JCR *jcr) if (!unpack_attributes_record(jcr, rctx.stream, sd->msg, attr)) { goto bail_out; } +#ifdef xxx if (file_index != attr->file_index) { Jmsg(jcr, M_FATAL, 0, _("Record header file index %ld not equal record index %ld\n"), file_index, attr->file_index); - Dmsg0(100, "File index error\n"); + Dmsg0(200, "File index error\n"); goto bail_out; } +#endif Dmsg3(200, "File %s\nattrib=%s\nattribsEx=%s\n", attr->fname, attr->attr, attr->attrEx); @@ -330,25 +340,31 @@ void do_restore(JCR *jcr) build_attr_output_fnames(jcr, attr); /* - * Now determine if we are extracting or not. + * Try to actually create the file, which returns a status telling + * us if we need to extract or not. */ jcr->num_files_examined++; - extract = false; - stat = create_file(jcr, attr, &rctx.bfd, jcr->replace); - Dmsg2(30, "Outfile=%s create_file stat=%d\n", attr->ofname, stat); + rctx.extract = false; + if (jcr->plugin) { + stat = plugin_create_file(jcr, attr, &rctx.bfd, jcr->replace); + } else { + stat = create_file(jcr, attr, &rctx.bfd, jcr->replace); + } + jcr->lock(); + pm_strcpy(jcr->last_fname, attr->ofname); + jcr->last_type = attr->type; + jcr->unlock(); + Dmsg2(130, "Outfile=%s create_file stat=%d\n", attr->ofname, stat); switch (stat) { case CF_ERROR: case CF_SKIP: + pm_strcpy(jcr->last_fname, attr->ofname); + jcr->last_type = attr->type; break; case CF_EXTRACT: /* File created and we expect file data */ - extract = true; + rctx.extract = true; /* FALLTHROUGH */ case CF_CREATED: /* File created, but there is no content */ - jcr->lock(); - pm_strcpy(jcr->last_fname, attr->ofname); - jcr->last_type = attr->type; - jcr->JobFiles++; - jcr->unlock(); rctx.fileAddr = 0; print_ls_output(jcr, attr); @@ -356,12 +372,26 @@ void do_restore(JCR *jcr) /* Only restore the resource fork for regular files */ from_base64(&rsrc_len, attr->attrEx); if (attr->type == FT_REG && rsrc_len > 0) { - extract = true; + rctx.extract = true; } + + /* + * Count the resource forks not as regular files being restored. + */ + if (rsrc_len == 0) { + jcr->JobFiles++; + } + } else { + jcr->JobFiles++; } - if (!extract) { + + if (!rctx.extract) { /* set attributes now because file will not be extracted */ - set_attributes(jcr, attr, &rctx.bfd); + if (jcr->plugin) { + plugin_set_attributes(jcr, attr, &rctx.bfd); + } else { + set_attributes(jcr, attr, &rctx.bfd); + } } break; } @@ -374,22 +404,33 @@ void do_restore(JCR *jcr) /* Is this an unexpected session data entry? */ if (rctx.cs) { Jmsg0(jcr, M_ERROR, 0, _("Unexpected cryptographic session data stream.\n")); - extract = false; + rctx.extract = false; bclose(&rctx.bfd); continue; } /* Do we have any keys at all? */ - if (!jcr->pki_recipients) { + if (!jcr->crypto.pki_recipients) { Jmsg(jcr, M_ERROR, 0, _("No private decryption keys have been defined to decrypt encrypted backup data.\n")); - extract = false; + rctx.extract = false; + bclose(&rctx.bfd); + break; + } + + if (jcr->crypto.digest) { + crypto_digest_free(jcr->crypto.digest); + } + jcr->crypto.digest = crypto_digest_new(jcr, signing_algorithm); + if (!jcr->crypto.digest) { + Jmsg0(jcr, M_FATAL, 0, _("Could not create digest.\n")); + rctx.extract = false; bclose(&rctx.bfd); break; } /* Decode and save session keys. */ cryptoerr = crypto_session_decode((uint8_t *)sd->msg, (uint32_t)sd->msglen, - jcr->pki_recipients, &rctx.cs); + jcr->crypto.pki_recipients, &rctx.cs); switch(cryptoerr) { case CRYPTO_ERROR_NONE: /* Success */ @@ -407,7 +448,7 @@ void do_restore(JCR *jcr) } if (cryptoerr != CRYPTO_ERROR_NONE) { - extract = false; + rctx.extract = false; bclose(&rctx.bfd); continue; } @@ -425,7 +466,7 @@ void do_restore(JCR *jcr) case STREAM_ENCRYPTED_FILE_GZIP_DATA: case STREAM_ENCRYPTED_WIN32_GZIP_DATA: /* Force an expected, consistent stream type here */ - if (extract && (rctx.prev_stream == rctx.stream + if (rctx.extract && (rctx.prev_stream == rctx.stream || rctx.prev_stream == STREAM_UNIX_ATTRIBUTES || rctx.prev_stream == STREAM_UNIX_ATTRIBUTES_EX || rctx.prev_stream == STREAM_ENCRYPTED_SESSION_DATA)) { @@ -452,7 +493,7 @@ void do_restore(JCR *jcr) if (!rctx.cipher_ctx.cipher) { if (!rctx.cs) { Jmsg1(jcr, M_ERROR, 0, _("Missing encryption session data stream for %s\n"), jcr->last_fname); - extract = false; + rctx.extract = false; bclose(&rctx.bfd); continue; } @@ -461,7 +502,7 @@ void do_restore(JCR *jcr) &rctx.cipher_ctx.block_size)) == NULL) { Jmsg1(jcr, M_ERROR, 0, _("Failed to initialize decryption context for %s\n"), jcr->last_fname); free_session(rctx); - extract = false; + rctx.extract = false; bclose(&rctx.bfd); continue; } @@ -474,107 +515,173 @@ void do_restore(JCR *jcr) rctx.flags |= FO_WIN32DECOMP; /* "decompose" BackupWrite data */ } - if (extract_data(jcr, &rctx.bfd, sd->msg, sd->msglen, &rctx.fileAddr, + if (extract_data(jcr, &rctx.bfd, sd->msg, sd->msglen, &rctx.fileAddr, rctx.flags, &rctx.cipher_ctx) < 0) { - extract = false; + rctx.extract = false; bclose(&rctx.bfd); continue; } } break; - /* Resource fork stream - only recorded after a file to be restored */ - /* Silently ignore if we cannot write - we already reported that */ + /* + * Resource fork stream - only recorded after a file to be restored + * Silently ignore if we cannot write - we already reported that + */ case STREAM_ENCRYPTED_MACOS_FORK_DATA: case STREAM_MACOS_FORK_DATA: -#ifdef HAVE_DARWIN_OS - fork_flags = 0; - jcr->ff->flags |= FO_HFSPLUS; - - if (stream == STREAM_ENCRYPTED_MACOS_FORK_DATA) { - fork_flags |= FO_ENCRYPT; - - /* Set up a decryption context */ - if (extract && !rctx.fork_cipher_ctx.cipher) { - if (!cs) { - Jmsg1(jcr, M_ERROR, 0, _("Missing encryption session data stream for %s\n"), jcr->last_fname); - extract = false; - bclose(&rctx.bfd); - continue; - } + if (have_darwin_os) { + rctx.fork_flags = 0; + jcr->ff->flags |= FO_HFSPLUS; - if ((rctx.fork_cipher_ctx.cipher = crypto_cipher_new(cs, false, &rctx.fork_cipher_ctx.block_size)) == NULL) { - Jmsg1(jcr, M_ERROR, 0, _("Failed to initialize decryption context for %s\n"), jcr->last_fname); - free_session(rctx); - extract = false; - bclose(&rctx.bfd); - continue; + if (rctx.stream == STREAM_ENCRYPTED_MACOS_FORK_DATA) { + rctx.fork_flags |= FO_ENCRYPT; + + /* Set up a decryption context */ + if (rctx.extract && !rctx.fork_cipher_ctx.cipher) { + if (!rctx.cs) { + Jmsg1(jcr, M_ERROR, 0, _("Missing encryption session data stream for %s\n"), jcr->last_fname); + rctx.extract = false; + bclose(&rctx.bfd); + continue; + } + + if ((rctx.fork_cipher_ctx.cipher = crypto_cipher_new(rctx.cs, false, &rctx.fork_cipher_ctx.block_size)) == NULL) { + Jmsg1(jcr, M_ERROR, 0, _("Failed to initialize decryption context for %s\n"), jcr->last_fname); + free_session(rctx); + rctx.extract = false; + bclose(&rctx.bfd); + continue; + } } } - } - if (extract) { - if (prev_stream != stream) { - if (bopen_rsrc(&forkbfd, jcr->last_fname, O_WRONLY | O_TRUNC | O_BINARY, 0) < 0) { - Jmsg(jcr, M_ERROR, 0, _(" Cannot open resource fork for %s.\n"), jcr->last_fname); - extract = false; - continue; - } + if (rctx.extract) { + if (rctx.prev_stream != rctx.stream) { + if (bopen_rsrc(&rctx.forkbfd, jcr->last_fname, O_WRONLY | O_TRUNC | O_BINARY, 0) < 0) { + Jmsg(jcr, M_ERROR, 0, _(" Cannot open resource fork for %s.\n"), jcr->last_fname); + rctx.extract = false; + continue; + } - fork_size = rsrc_len; - Dmsg0(30, "Restoring resource fork\n"); - } + rctx.fork_size = rsrc_len; + Dmsg0(130, "Restoring resource fork\n"); + } - if (extract_data(jcr, &forkbfd, sd->msg, sd->msglen, &rctx.fork_addr, fork_flags, - &rctxfork_cipher_ctx) < 0) { - extract = false; - bclose(&forkbfd); - continue; + if (extract_data(jcr, &rctx.forkbfd, sd->msg, sd->msglen, &rctx.fork_addr, rctx.fork_flags, + &rctx.fork_cipher_ctx) < 0) { + rctx.extract = false; + bclose(&rctx.forkbfd); + continue; + } } + } else { + non_support_rsrc++; } -#else - non_support_rsrc++; -#endif break; case STREAM_HFSPLUS_ATTRIBUTES: -#ifdef HAVE_DARWIN_OS - Dmsg0(30, "Restoring Finder Info\n"); - jcr->ff->flags |= FO_HFSPLUS; - if (sd->msglen != 32) { - Jmsg(jcr, M_ERROR, 0, _(" Invalid length of Finder Info (got %d, not 32)\n"), sd->msglen); - continue; - } - if (setattrlist(jcr->last_fname, &attrList, sd->msg, sd->msglen, 0) != 0) { - Jmsg(jcr, M_ERROR, 0, _(" Could not set Finder Info on %s\n"), jcr->last_fname); - continue; + if (have_darwin_os) { + Dmsg0(130, "Restoring Finder Info\n"); + jcr->ff->flags |= FO_HFSPLUS; + if (sd->msglen != 32) { + Jmsg(jcr, M_ERROR, 0, _(" Invalid length of Finder Info (got %d, not 32)\n"), sd->msglen); + continue; + } + if (setattrlist(jcr->last_fname, &attrList, sd->msg, sd->msglen, 0) != 0) { + Jmsg(jcr, M_ERROR, 0, _(" Could not set Finder Info on %s\n"), jcr->last_fname); + continue; + } + } else { + non_support_finfo++; } -#else - non_support_finfo++; -#endif break; - case STREAM_UNIX_ATTRIBUTES_ACCESS_ACL: + case STREAM_UNIX_ACCESS_ACL: + case STREAM_UNIX_DEFAULT_ACL: + case STREAM_ACL_AIX_TEXT: + case STREAM_ACL_DARWIN_ACCESS_ACL: + case STREAM_ACL_FREEBSD_DEFAULT_ACL: + case STREAM_ACL_FREEBSD_ACCESS_ACL: + case STREAM_ACL_HPUX_ACL_ENTRY: + case STREAM_ACL_IRIX_DEFAULT_ACL: + case STREAM_ACL_IRIX_ACCESS_ACL: + case STREAM_ACL_LINUX_DEFAULT_ACL: + case STREAM_ACL_LINUX_ACCESS_ACL: + case STREAM_ACL_TRU64_DEFAULT_ACL: + case STREAM_ACL_TRU64_DEFAULT_DIR_ACL: + case STREAM_ACL_TRU64_ACCESS_ACL: + case STREAM_ACL_SOLARIS_ACLENT: + case STREAM_ACL_SOLARIS_ACE: + /* + * Do not restore ACLs when + * a) The current file is not extracted + * b) and it is not a directory (they are never "extracted") + * c) or the file name is empty + */ + if ((!rctx.extract && jcr->last_type != FT_DIREND) || (*jcr->last_fname == 0)) { + break; + } if (have_acl) { - pm_strcpy(jcr->acl_text, sd->msg); - Dmsg2(400, "Restoring ACL type 0x%2x <%s>\n", BACL_TYPE_ACCESS, jcr->acl_text); - if (bacl_set(jcr, BACL_TYPE_ACCESS) != 0) { - Qmsg1(jcr, M_WARNING, 0, _("Can't restore ACL of %s\n"), jcr->last_fname); + pm_memcpy(jcr->acl_data->content, sd->msg, sd->msglen); + jcr->acl_data->content_length = sd->msglen; + switch (parse_acl_streams(jcr, rctx.stream)) { + case bacl_exit_fatal: + goto bail_out; + case bacl_exit_error: + /* + * Non-fatal errors, count them and when the number is under ACL_REPORT_ERR_MAX_PER_JOB + * print the error message set by the lower level routine in jcr->errmsg. + */ + if (jcr->acl_data->nr_errors < ACL_REPORT_ERR_MAX_PER_JOB) { + Qmsg(jcr, M_WARNING, 0, "%s", jcr->errmsg); + } + jcr->acl_data->nr_errors++; + break; + case bacl_exit_ok: + break; } } else { non_support_acl++; } break; - case STREAM_UNIX_ATTRIBUTES_DEFAULT_ACL: - if (have_acl) { - pm_strcpy(jcr->acl_text, sd->msg); - Dmsg2(400, "Restoring ACL type 0x%2x <%s>\n", BACL_TYPE_DEFAULT, jcr->acl_text); - if (bacl_set(jcr, BACL_TYPE_DEFAULT) != 0) { - Qmsg1(jcr, M_WARNING, 0, _("Can't restore default ACL of %s\n"), jcr->last_fname); + case STREAM_XATTR_SOLARIS_SYS: + case STREAM_XATTR_SOLARIS: + case STREAM_XATTR_DARWIN: + case STREAM_XATTR_FREEBSD: + case STREAM_XATTR_LINUX: + case STREAM_XATTR_NETBSD: + /* + * Do not restore Extended Attributes when + * a) The current file is not extracted + * b) and it is not a directory (they are never "extracted") + * c) or the file name is empty + */ + if ((!rctx.extract && jcr->last_type != FT_DIREND) || (*jcr->last_fname == 0)) { + break; + } + if (have_xattr) { + pm_memcpy(jcr->xattr_data->content, sd->msg, sd->msglen); + jcr->xattr_data->content_length = sd->msglen; + switch (parse_xattr_streams(jcr, rctx.stream)) { + case bxattr_exit_fatal: + goto bail_out; + case bxattr_exit_error: + /* + * Non-fatal errors, count them and when the number is under XATTR_REPORT_ERR_MAX_PER_JOB + * print the error message set by the lower level routine in jcr->errmsg. + */ + if (jcr->xattr_data->nr_errors < XATTR_REPORT_ERR_MAX_PER_JOB) { + Qmsg(jcr, M_WARNING, 0, "%s", jcr->errmsg); + } + jcr->xattr_data->nr_errors++; + break; + case bxattr_exit_ok: + break; } } else { - non_support_acl++; + non_support_xattr++; } break; @@ -586,7 +693,7 @@ void do_restore(JCR *jcr) continue; } /* Save signature. */ - if (extract && (rctx.sig = crypto_sign_decode(jcr, (uint8_t *)sd->msg, (uint32_t)sd->msglen)) == NULL) { + if (rctx.extract && (rctx.sig = crypto_sign_decode(jcr, (uint8_t *)sd->msg, (uint32_t)sd->msglen)) == NULL) { Jmsg1(jcr, M_ERROR, 0, _("Failed to decode message signature for %s\n"), jcr->last_fname); } break; @@ -605,55 +712,31 @@ void do_restore(JCR *jcr) } break; - default: - /* If extracting, wierd stream (not 1 or 2), close output file anyway */ - if (extract) { - Dmsg1(30, "Found wierd stream %d\n", rctx.stream); - if (rctx.size > 0 && !is_bopen(&rctx.bfd)) { - Jmsg0(jcr, M_ERROR, 0, _("Logic error: output file should be open\n")); - } - /* Flush and deallocate cipher context */ - deallocate_cipher(rctx); - deallocate_fork_cipher(rctx); - - set_attributes(jcr, attr, &rctx.bfd); + case STREAM_PLUGIN_NAME: + close_previous_stream(rctx); + Dmsg1(50, "restore stream_plugin_name=%s\n", sd->msg); + plugin_name_stream(jcr, sd->msg); + break; - /* Verify the cryptographic signature if any */ - verify_signature(jcr, rctx.sig); - extract = false; - } else if (is_bopen(&rctx.bfd)) { - Jmsg0(jcr, M_ERROR, 0, _("Logic error: output file should not be open\n")); - bclose(&rctx.bfd); - } + default: + close_previous_stream(rctx); Jmsg(jcr, M_ERROR, 0, _("Unknown stream=%d ignored. This shouldn't happen!\n"), rctx.stream); - Dmsg2(0, "None of above!!! stream=%d data=%s\n", rctx.stream,sd->msg); + Dmsg2(0, "Unknown stream=%d data=%s\n", rctx.stream, sd->msg); break; } /* end switch(stream) */ } /* end while get_msg() */ - /* If output file is still open, it was the last one in the + /* + * If output file is still open, it was the last one in the * archive since we just hit an end of file, so close the file. */ if (is_bopen(&rctx.forkbfd)) { bclose_chksize(jcr, &rctx.forkbfd, rctx.fork_size); } - if (extract) { - /* Flush and deallocate cipher context */ - deallocate_cipher(rctx); - deallocate_fork_cipher(rctx); - - set_attributes(jcr, attr, &rctx.bfd); - - /* Verify the cryptographic signature on the last file, if any */ - verify_signature(jcr, rctx.sig); - } - - if (is_bopen(&rctx.bfd)) { - bclose(&rctx.bfd); - } + close_previous_stream(rctx); set_jcr_job_status(jcr, JS_Terminated); goto ok_out; @@ -661,21 +744,65 @@ bail_out: set_jcr_job_status(jcr, JS_ErrorTerminated); ok_out: - /* Free Signature & Crypto Data */ + /* + * First output the statistics. + */ + Dmsg2(10, "End Do Restore. Files=%d Bytes=%s\n", jcr->JobFiles, + edit_uint64(jcr->JobBytes, ec1)); + if (have_acl && jcr->acl_data->nr_errors > 0) { + Jmsg(jcr, M_ERROR, 0, _("Encountered %ld acl errors while doing restore\n"), + jcr->acl_data->nr_errors); + } + if (have_xattr && jcr->xattr_data->nr_errors > 0) { + Jmsg(jcr, M_ERROR, 0, _("Encountered %ld xattr errors while doing restore\n"), + jcr->xattr_data->nr_errors); + } + if (non_support_data > 1 || non_support_attr > 1) { + Jmsg(jcr, M_ERROR, 0, _("%d non-supported data streams and %d non-supported attrib streams ignored.\n"), + non_support_data, non_support_attr); + } + if (non_support_rsrc) { + Jmsg(jcr, M_INFO, 0, _("%d non-supported resource fork streams ignored.\n"), non_support_rsrc); + } + if (non_support_finfo) { + Jmsg(jcr, M_INFO, 0, _("%d non-supported Finder Info streams ignored.\n"), non_support_rsrc); + } + if (non_support_acl) { + Jmsg(jcr, M_INFO, 0, _("%d non-supported acl streams ignored.\n"), non_support_acl); + } + if (non_support_crypto) { + Jmsg(jcr, M_INFO, 0, _("%d non-supported crypto streams ignored.\n"), non_support_acl); + } + if (non_support_xattr) { + Jmsg(jcr, M_INFO, 0, _("%d non-supported xattr streams ignored.\n"), non_support_xattr); + } + + /* + * Free Signature & Crypto Data + */ free_signature(rctx); free_session(rctx); + if (jcr->crypto.digest) { + crypto_digest_free(jcr->crypto.digest); + jcr->crypto.digest = NULL; + } - /* Free file cipher restore context */ + /* + * Free file cipher restore context + */ if (rctx.cipher_ctx.cipher) { crypto_cipher_free(rctx.cipher_ctx.cipher); rctx.cipher_ctx.cipher = NULL; } + if (rctx.cipher_ctx.buf) { free_pool_memory(rctx.cipher_ctx.buf); rctx.cipher_ctx.buf = NULL; } - /* Free alternate stream cipher restore context */ + /* + * Free alternate stream cipher restore context + */ if (rctx.fork_cipher_ctx.cipher) { crypto_cipher_free(rctx.fork_cipher_ctx.cipher); rctx.fork_cipher_ctx.cipher = NULL; @@ -686,33 +813,26 @@ ok_out: } if (jcr->compress_buf) { - free(jcr->compress_buf); + free_pool_memory(jcr->compress_buf); jcr->compress_buf = NULL; jcr->compress_buf_size = 0; } - bclose(&rctx.forkbfd); - bclose(&rctx.bfd); - free_attr(attr); - free_pool_memory(jcr->acl_text); - Dmsg2(10, "End Do Restore. Files=%d Bytes=%s\n", jcr->JobFiles, - edit_uint64(jcr->JobBytes, ec1)); - if (non_support_data > 1 || non_support_attr > 1) { - Jmsg(jcr, M_ERROR, 0, _("%d non-supported data streams and %d non-supported attrib streams ignored.\n"), - non_support_data, non_support_attr); - } - if (non_support_rsrc) { - Jmsg(jcr, M_INFO, 0, _("%d non-supported resource fork streams ignored.\n"), non_support_rsrc); - } - if (non_support_finfo) { - Jmsg(jcr, M_INFO, 0, _("%d non-supported Finder Info streams ignored.\n"), non_support_rsrc); - } - if (non_support_acl) { - Jmsg(jcr, M_INFO, 0, _("%d non-supported acl streams ignored.\n"), non_support_acl); + + if (have_acl && jcr->acl_data) { + free_pool_memory(jcr->acl_data->content); + free(jcr->acl_data); + jcr->acl_data = NULL; } - if (non_support_crypto) { - Jmsg(jcr, M_INFO, 0, _("%d non-supported crypto streams ignored.\n"), non_support_acl); + + if (have_xattr && jcr->xattr_data) { + free_pool_memory(jcr->xattr_data->content); + free(jcr->xattr_data); + jcr->xattr_data = NULL; } + bclose(&rctx.forkbfd); + bclose(&rctx.bfd); + free_attr(rctx.attr); } #ifdef HAVE_LIBZ @@ -743,11 +863,10 @@ static const char *zlib_strerror(int stat) } #endif -static int do_file_digest(FF_PKT *ff_pkt, void *pkt, bool top_level) +static int do_file_digest(JCR *jcr, FF_PKT *ff_pkt, bool top_level) { - JCR *jcr = (JCR *)pkt; Dmsg1(50, "do_file_digest jcr=%p\n", jcr); - return (digest_file(jcr, ff_pkt, jcr->digest)); + return (digest_file(jcr, ff_pkt, jcr->crypto.digest)); } /* @@ -757,60 +876,93 @@ static int do_file_digest(FF_PKT *ff_pkt, void *pkt, bool top_level) * TODO landonf: Implement without using find_one_file and * without re-reading the file. */ -static bool verify_signature(JCR *jcr, SIGNATURE *sig) +static bool verify_signature(JCR *jcr, r_ctx &rctx) { X509_KEYPAIR *keypair; DIGEST *digest = NULL; crypto_error_t err; uint64_t saved_bytes; + crypto_digest_t signing_algorithm = have_sha2 ? + CRYPTO_DIGEST_SHA256 : CRYPTO_DIGEST_SHA1; + crypto_digest_t algorithm; + SIGNATURE *sig = rctx.sig; + - if (!jcr->pki_sign) { + if (!jcr->crypto.pki_sign) { return true; /* no signature OK */ } if (!sig) { - Jmsg1(jcr, M_ERROR, 0, _("Missing cryptographic signature for %s\n"), - jcr->last_fname); + if (rctx.type == FT_REGE || rctx.type == FT_REG || rctx.type == FT_RAW) { + Jmsg1(jcr, M_ERROR, 0, _("Missing cryptographic signature for %s\n"), + jcr->last_fname); + goto bail_out; + } + return true; } /* Iterate through the trusted signers */ - foreach_alist(keypair, jcr->pki_signers) { - err = crypto_sign_get_digest(sig, jcr->pki_keypair, &digest); + foreach_alist(keypair, jcr->crypto.pki_signers) { + err = crypto_sign_get_digest(sig, jcr->crypto.pki_keypair, algorithm, &digest); switch (err) { case CRYPTO_ERROR_NONE: Dmsg0(50, "== Got digest\n"); - /* Signature found, digest allocated */ - jcr->digest = digest; - - /* Checksum the entire file */ - /* Make sure we don't modify JobBytes by saving and restoring it */ - saved_bytes = jcr->JobBytes; - if (find_one_file(jcr, jcr->ff, do_file_digest, jcr, jcr->last_fname, (dev_t)-1, 1) != 0) { - Jmsg(jcr, M_ERROR, 0, _("Digest one file failed for file: %s\n"), - jcr->last_fname); - jcr->JobBytes = saved_bytes; - goto bail_out; + /* + * We computed jcr->crypto.digest using signing_algorithm while writing + * the file. If it is not the same as the algorithm used for + * this file, punt by releasing the computed algorithm and + * computing by re-reading the file. + */ + if (algorithm != signing_algorithm) { + if (jcr->crypto.digest) { + crypto_digest_free(jcr->crypto.digest); + jcr->crypto.digest = NULL; + } } - jcr->JobBytes = saved_bytes; + if (jcr->crypto.digest) { + /* Use digest computed while writing the file to verify the signature */ + if ((err = crypto_sign_verify(sig, keypair, jcr->crypto.digest)) != CRYPTO_ERROR_NONE) { + Dmsg1(50, "Bad signature on %s\n", jcr->last_fname); + Jmsg2(jcr, M_ERROR, 0, _("Signature validation failed for file %s: ERR=%s\n"), + jcr->last_fname, crypto_strerror(err)); + goto bail_out; + } + } else { + /* Signature found, digest allocated. Old method, + * re-read the file and compute the digest + */ + jcr->crypto.digest = digest; + + /* Checksum the entire file */ + /* Make sure we don't modify JobBytes by saving and restoring it */ + saved_bytes = jcr->JobBytes; + if (find_one_file(jcr, jcr->ff, do_file_digest, jcr->last_fname, (dev_t)-1, 1) != 0) { + Jmsg(jcr, M_ERROR, 0, _("Digest one file failed for file: %s\n"), + jcr->last_fname); + jcr->JobBytes = saved_bytes; + goto bail_out; + } + jcr->JobBytes = saved_bytes; - /* Verify the signature */ - if ((err = crypto_sign_verify(sig, keypair, digest)) != CRYPTO_ERROR_NONE) { - Dmsg1(50, "Bad signature on %s\n", jcr->last_fname); - Jmsg2(jcr, M_ERROR, 0, _("Signature validation failed for file %s: ERR=%s\n"), - jcr->last_fname, crypto_strerror(err)); - goto bail_out; + /* Verify the signature */ + if ((err = crypto_sign_verify(sig, keypair, digest)) != CRYPTO_ERROR_NONE) { + Dmsg1(50, "Bad signature on %s\n", jcr->last_fname); + Jmsg2(jcr, M_ERROR, 0, _("Signature validation failed for file %s: ERR=%s\n"), + jcr->last_fname, crypto_strerror(err)); + goto bail_out; + } + jcr->crypto.digest = NULL; } /* Valid signature */ Dmsg1(50, "Signature good on %s\n", jcr->last_fname); crypto_digest_free(digest); - jcr->digest = NULL; return true; case CRYPTO_ERROR_NOSIGNER: /* Signature not found, try again */ if (digest) { crypto_digest_free(digest); - jcr->digest = NULL; + digest = NULL; } continue; default: @@ -826,7 +978,6 @@ static bool verify_signature(JCR *jcr, SIGNATURE *sig) bail_out: if (digest) { crypto_digest_free(digest); - jcr->digest = NULL; } return false; } @@ -866,16 +1017,24 @@ bool decompress_data(JCR *jcr, char **data, uint32_t *length) * be used in Bacula. */ compress_len = jcr->compress_buf_size; - Dmsg2(100, "Comp_len=%d msglen=%d\n", compress_len, *length); - if ((stat=uncompress((Byte *)jcr->compress_buf, &compress_len, - (const Byte *)*data, (uLong)*length)) != Z_OK) { + Dmsg2(200, "Comp_len=%d msglen=%d\n", compress_len, *length); + while ((stat=uncompress((Byte *)jcr->compress_buf, &compress_len, + (const Byte *)*data, (uLong)*length)) == Z_BUF_ERROR) + { + /* The buffer size is too small, try with a bigger one */ + compress_len = jcr->compress_buf_size = jcr->compress_buf_size + jcr->compress_buf_size >> 1; + Dmsg2(200, "Comp_len=%d msglen=%d\n", compress_len, *length); + jcr->compress_buf = check_pool_memory_size(jcr->compress_buf, + compress_len); + } + if (stat != Z_OK) { Qmsg(jcr, M_ERROR, 0, _("Uncompression error on file %s. ERR=%s\n"), - jcr->last_fname, zlib_strerror(stat)); + jcr->last_fname, zlib_strerror(stat)); return false; } *data = jcr->compress_buf; *length = compress_len; - Dmsg2(100, "Write uncompressed %d bytes, total before write=%s\n", compress_len, edit_uint64(jcr->JobBytes, ec1)); + Dmsg2(200, "Write uncompressed %d bytes, total before write=%s\n", compress_len, edit_uint64(jcr->JobBytes, ec1)); return true; #else Qmsg(jcr, M_ERROR, 0, _("GZIP data stream found, but GZIP not configured!\n")); @@ -895,6 +1054,9 @@ static void unser_crypto_packet_len(RESTORE_CIPHER_CTX *ctx) bool store_data(JCR *jcr, BFILE *bfd, char *data, const int32_t length, bool win32_decomp) { + if (jcr->crypto.digest) { + crypto_digest_update(jcr->crypto.digest, (uint8_t *)data, length); + } if (win32_decomp) { if (!processWin32BackupAPIBlock(bfd, data, length)) { berrno be; @@ -919,7 +1081,7 @@ bool store_data(JCR *jcr, BFILE *bfd, char *data, const int32_t length, bool win * Return value is the number of bytes written, or -1 on errors. */ int32_t extract_data(JCR *jcr, BFILE *bfd, POOLMEM *buf, int32_t buflen, - uint64_t *addr, int flags, RESTORE_CIPHER_CTX *cipher_ctx) + uint64_t *addr, int flags, RESTORE_CIPHER_CTX *cipher_ctx) { char *wbuf; /* write buffer */ uint32_t wsize; /* write size */ @@ -954,7 +1116,7 @@ int32_t extract_data(JCR *jcr, BFILE *bfd, POOLMEM *buf, int32_t buflen, &decrypted_len)) { /* Decryption failed. Shouldn't happen. */ Jmsg(jcr, M_FATAL, 0, _("Decryption error\n")); - return -1; + goto bail_out; } if (decrypted_len == 0) { @@ -962,7 +1124,7 @@ int32_t extract_data(JCR *jcr, BFILE *bfd, POOLMEM *buf, int32_t buflen, return 0; } - Dmsg2(100, "decrypted len=%d encrypted len=%d\n", decrypted_len, wsize); + Dmsg2(200, "decrypted len=%d encrypted len=%d\n", decrypted_len, wsize); cipher_ctx->buf_len += decrypted_len; wbuf = cipher_ctx->buf; @@ -983,33 +1145,33 @@ int32_t extract_data(JCR *jcr, BFILE *bfd, POOLMEM *buf, int32_t buflen, wsize = cipher_ctx->packet_len - CRYPTO_LEN_SIZE; wbuf = &wbuf[CRYPTO_LEN_SIZE]; /* Skip the block length header */ cipher_ctx->buf_len -= cipher_ctx->packet_len; - Dmsg2(30, "Encryption writing full block, %u bytes, remaining %u bytes in buffer\n", wsize, cipher_ctx->buf_len); + Dmsg2(130, "Encryption writing full block, %u bytes, remaining %u bytes in buffer\n", wsize, cipher_ctx->buf_len); } if (flags & FO_SPARSE) { if (!sparse_data(jcr, bfd, addr, &wbuf, &wsize)) { - return -1; + goto bail_out; } } if (flags & FO_GZIP) { if (!decompress_data(jcr, &wbuf, &wsize)) { - return -1; + goto bail_out; } } if (!store_data(jcr, bfd, wbuf, wsize, (flags & FO_WIN32DECOMP) != 0)) { - return -1; + goto bail_out; } jcr->JobBytes += wsize; *addr += wsize; - Dmsg2(30, "Write %u bytes, JobBytes=%s\n", wsize, edit_uint64(jcr->JobBytes, ec1)); + Dmsg2(130, "Write %u bytes, JobBytes=%s\n", wsize, edit_uint64(jcr->JobBytes, ec1)); /* Clean up crypto buffers */ if (flags & FO_ENCRYPT) { /* Move any remaining data to start of buffer */ if (cipher_ctx->buf_len > 0) { - Dmsg1(30, "Moving %u buffered bytes to start of buffer\n", cipher_ctx->buf_len); + Dmsg1(130, "Moving %u buffered bytes to start of buffer\n", cipher_ctx->buf_len); memmove(cipher_ctx->buf, &cipher_ctx->buf[cipher_ctx->packet_len], cipher_ctx->buf_len); } @@ -1017,10 +1179,58 @@ int32_t extract_data(JCR *jcr, BFILE *bfd, POOLMEM *buf, int32_t buflen, * packet length may be re-read by unser_crypto_packet_len() */ cipher_ctx->packet_len = 0; } - return wsize; + +bail_out: + return -1; } + +/* + * If extracting, close any previous stream + */ +static void close_previous_stream(r_ctx &rctx) +{ + /* + * If extracting, it was from previous stream, so + * close the output file and validate the signature. + */ + if (rctx.extract) { + if (rctx.size > 0 && !is_bopen(&rctx.bfd)) { + Jmsg0(rctx.jcr, M_ERROR, 0, _("Logic error: output file should be open\n")); + Dmsg2(000, "=== logic error size=%d bopen=%d\n", rctx.size, + is_bopen(&rctx.bfd)); + } + + if (rctx.prev_stream != STREAM_ENCRYPTED_SESSION_DATA) { + deallocate_cipher(rctx); + deallocate_fork_cipher(rctx); + } + + if (rctx.jcr->plugin) { + plugin_set_attributes(rctx.jcr, rctx.attr, &rctx.bfd); + } else { + set_attributes(rctx.jcr, rctx.attr, &rctx.bfd); + } + rctx.extract = false; + + /* Verify the cryptographic signature, if any */ + rctx.type = rctx.attr->type; + verify_signature(rctx.jcr, rctx); + + /* Free Signature */ + free_signature(rctx); + free_session(rctx); + rctx.jcr->ff->flags = 0; + Dmsg0(130, "Stop extracting.\n"); + } else if (is_bopen(&rctx.bfd)) { + Jmsg0(rctx.jcr, M_ERROR, 0, _("Logic error: output file should not be open\n")); + Dmsg0(000, "=== logic error !open\n"); + bclose(&rctx.bfd); + } +} + + /* * In the context of jcr, flush any remaining data from the cipher context, * writing it to bfd. @@ -1047,7 +1257,7 @@ again: cipher_ctx->buf_len, decrypted_len, jcr->last_fname); } - Dmsg2(30, "Flush decrypt len=%d buf_len=%d\n", decrypted_len, cipher_ctx->buf_len); + Dmsg2(130, "Flush decrypt len=%d buf_len=%d\n", decrypted_len, cipher_ctx->buf_len); /* If nothing new was decrypted, and our output buffer is empty, return */ if (decrypted_len == 0 && cipher_ctx->buf_len == 0) { return true; @@ -1060,7 +1270,7 @@ again: wsize = cipher_ctx->packet_len - CRYPTO_LEN_SIZE; wbuf = &cipher_ctx->buf[CRYPTO_LEN_SIZE]; /* Decrypted, possibly decompressed output here. */ cipher_ctx->buf_len -= cipher_ctx->packet_len; - Dmsg2(30, "Encryption writing full block, %u bytes, remaining %u bytes in buffer\n", wsize, cipher_ctx->buf_len); + Dmsg2(130, "Encryption writing full block, %u bytes, remaining %u bytes in buffer\n", wsize, cipher_ctx->buf_len); if (flags & FO_SPARSE) { if (!sparse_data(jcr, bfd, addr, &wbuf, &wsize)) { @@ -1074,16 +1284,16 @@ again: } } - Dmsg0(30, "Call store_data\n"); + Dmsg0(130, "Call store_data\n"); if (!store_data(jcr, bfd, wbuf, wsize, (flags & FO_WIN32DECOMP) != 0)) { return false; } jcr->JobBytes += wsize; - Dmsg2(30, "Flush write %u bytes, JobBytes=%s\n", wsize, edit_uint64(jcr->JobBytes, ec1)); + Dmsg2(130, "Flush write %u bytes, JobBytes=%s\n", wsize, edit_uint64(jcr->JobBytes, ec1)); /* Move any remaining data to start of buffer */ if (cipher_ctx->buf_len > 0) { - Dmsg1(30, "Moving %u buffered bytes to start of buffer\n", cipher_ctx->buf_len); + Dmsg1(130, "Moving %u buffered bytes to start of buffer\n", cipher_ctx->buf_len); memmove(cipher_ctx->buf, &cipher_ctx->buf[cipher_ctx->packet_len], cipher_ctx->buf_len); }