LCOV - code coverage report
Current view: top level - src/client/protocol1 - restore.c (source / functions) Hit Total Coverage
Test: burp-coverage-clean.info Lines: 34 67 50.7 %
Date: 2017-07-01 Functions: 3 4 75.0 %

          Line data    Source code
       1             : #include "../../burp.h"
       2             : #include "../../action.h"
       3             : #include "../../alloc.h"
       4             : #include "../../asfd.h"
       5             : #include "../../async.h"
       6             : #include "../../attribs.h"
       7             : #include "../../bfile.h"
       8             : #include "../../cmd.h"
       9             : #include "../../cntr.h"
      10             : #include "../../fsops.h"
      11             : #include "../../handy.h"
      12             : #include "../../log.h"
      13             : #include "../../protocol1/msg.h"
      14             : #include "../extrameta.h"
      15             : #include "../restore.h"
      16             : #include "restore.h"
      17             : 
      18           4 : static int do_restore_file_or_get_meta(struct asfd *asfd, struct BFILE *bfd,
      19             :         struct sbuf *sb, const char *fname,
      20             :         char **metadata, size_t *metalen,
      21             :         struct cntr *cntr, const char *rpath,
      22             :         const char *encryption_password)
      23             : {
      24           4 :         int ret=-1;
      25           4 :         int enccompressed=0;
      26           4 :         uint64_t rcvdbytes=0;
      27           4 :         uint64_t sentbytes=0;
      28           4 :         const char *encpassword=NULL;
      29             : 
      30           4 :         if(sbuf_is_encrypted(sb))
      31           2 :                 encpassword=encryption_password;
      32           4 :         enccompressed=dpth_protocol1_is_compressed(sb->compression,
      33           4 :                 sb->protocol1->datapth.buf);
      34             : /*
      35             :         printf("%s \n", fname);
      36             :         if(encpassword && !enccompressed)
      37             :                 printf("encrypted and not compressed\n");
      38             :         else if(!encpassword && enccompressed)
      39             :                 printf("not encrypted and compressed\n");
      40             :         else if(!encpassword && !enccompressed)
      41             :                 printf("not encrypted and not compressed\n");
      42             :         else if(encpassword && enccompressed)
      43             :                 printf("encrypted and compressed\n");
      44             : */
      45             : 
      46           4 :         if(metadata)
      47             :         {
      48           0 :                 ret=transfer_gzfile_inl(asfd,
      49             : #ifdef HAVE_WIN32
      50             :                         sb,
      51             : #endif
      52             :                         NULL,
      53             :                         &rcvdbytes, &sentbytes, encpassword, enccompressed,
      54             :                         cntr, metadata);
      55           0 :                 *metalen=sentbytes;
      56             :                 // skip setting cntr, as we do not actually
      57             :                 // restore until a bit later
      58             :         }
      59             :         else
      60             :         {
      61           4 :                 ret=transfer_gzfile_inl(asfd,
      62             : #ifdef HAVE_WIN32
      63             :                         sb,
      64             : #endif
      65             :                         bfd,
      66             :                         &rcvdbytes, &sentbytes,
      67             :                         encpassword, enccompressed, cntr, NULL);
      68             : #ifndef HAVE_WIN32
      69           4 :                 if(bfd && bfd->close(bfd, asfd))
      70             :                 {
      71           0 :                         logp("error closing %s in %s\n",
      72             :                                 fname, __func__);
      73           0 :                         ret=-1;
      74             :                 }
      75             : #endif
      76           4 :                 if(!ret) attribs_set(asfd, rpath,
      77             :                         &sb->statp, sb->winattr, cntr);
      78             :         }
      79           4 :         if(ret)
      80             :         {
      81           0 :                 char msg[256]="";
      82             :                 snprintf(msg, sizeof(msg),
      83             :                         "Could not transfer file in: %s", rpath);
      84           0 :                 if(restore_interrupt(asfd, sb, msg, cntr, PROTO_1))
      85             :                         ret=-1;
      86           0 :                 ret=0;
      87             :         }
      88           4 :         return ret;
      89             : }
      90             : 
      91           4 : static int restore_file_or_get_meta(struct asfd *asfd, struct BFILE *bfd,
      92             :         struct sbuf *sb, const char *fname, enum action act,
      93             :         char **metadata, size_t *metalen, int vss_restore,
      94             :         struct cntr *cntr, const char *encyption_password)
      95             : {
      96           4 :         int ret=0;
      97           4 :         char *rpath=NULL;
      98             : 
      99           4 :         if(act==ACTION_VERIFY)
     100             :         {
     101           0 :                 cntr_add(cntr, sb->path.cmd, 1);
     102           0 :                 goto end;
     103             :         }
     104             : 
     105           4 :         if(build_path(fname, "", &rpath, NULL))
     106             :         {
     107           0 :                 char msg[256]="";
     108             :                 // failed - do a warning
     109             :                 snprintf(msg, sizeof(msg), "build path failed: %s", fname);
     110           0 :                 if(restore_interrupt(asfd, sb, msg, cntr, PROTO_1))
     111           0 :                         ret=-1;
     112             :                 goto end;
     113             :         }
     114             : 
     115             : #ifndef HAVE_WIN32
     116             :         // We always want to open the file if it is on Windows. Otherwise,
     117             :         // only open it if we are not doing metadata.
     118           4 :         if(!metadata)
     119             :         {
     120             : #endif
     121           4 :                 switch(open_for_restore(asfd,
     122             :                         bfd, rpath, sb, vss_restore, cntr, PROTO_1))
     123             :                 {
     124             :                         case OFR_OK: break;
     125             :                         case OFR_CONTINUE: goto end;
     126           0 :                         default: ret=-1; goto end;
     127             :                 }
     128             : #ifndef HAVE_WIN32
     129             :         }
     130             : #endif
     131             : 
     132           4 :         if(!(ret=do_restore_file_or_get_meta(asfd, bfd, sb, fname,
     133             :                 metadata, metalen, cntr, rpath, encyption_password)))
     134           4 :                         cntr_add(cntr, sb->path.cmd, 1);
     135             : end:
     136           4 :         free_w(&rpath);
     137           4 :         if(ret) logp("restore_file error\n");
     138           4 :         return ret;
     139             : }
     140             : 
     141           0 : static int restore_metadata(struct asfd *asfd,
     142             :         struct BFILE *bfd, struct sbuf *sb,
     143             :         const char *fname, enum action act,
     144             :         int vss_restore, struct cntr *cntr, const char *encryption_password)
     145             : {
     146           0 :         int ret=-1;
     147           0 :         size_t metalen=0;
     148           0 :         char *metadata=NULL;
     149             :         
     150             :         // If it is directory metadata, try to make sure the directory
     151             :         // exists. Pass in NULL as the cntr, so no counting is done.
     152             :         // The actual directory entry will be coming after the metadata,
     153             :         // annoyingly. This is because of the way that the server is queuing
     154             :         // up directories to send after file data, so that the stat info on
     155             :         // them gets set correctly.
     156           0 :         if(act==ACTION_VERIFY)
     157             :         {
     158           0 :                 cntr_add(cntr, sb->path.cmd, 1);
     159           0 :                 ret=0;
     160           0 :                 goto end;
     161             :         }
     162             : 
     163           0 :         if(S_ISDIR(sb->statp.st_mode)
     164           0 :           && restore_dir(asfd, sb, fname, act, cntr, PROTO_1))
     165             :                 goto end;
     166             : 
     167             :         // Read in the metadata...
     168           0 :         if(restore_file_or_get_meta(asfd, bfd, sb, fname, act,
     169             :                 &metadata, &metalen, vss_restore, cntr, encryption_password))
     170             :                         goto end;
     171           0 :         if(metadata)
     172             :         {
     173             :                 
     174           0 :                 if(!set_extrameta(asfd,
     175             : #ifdef HAVE_WIN32
     176             :                         bfd,
     177             : #endif
     178             :                         fname,
     179             :                         metadata, metalen, cntr))
     180             :                 {
     181             : #ifndef HAVE_WIN32
     182             :                         // Set file times again, since we just diddled with the
     183             :                         // file. Do not set all attributes, as it will wipe
     184             :                         // out any security attributes (eg getcap /usr/bin/ping)
     185           0 :                         if(attribs_set_file_times(asfd, fname,
     186             :                                 &sb->statp, cntr))
     187             :                                         return -1;
     188           0 :                         cntr_add(cntr, sb->path.cmd, 1);
     189             : #endif
     190             :                 }
     191             :                 // Carry on if we could not set_extrameta.
     192             :         }
     193             :         ret=0;
     194             : end:
     195           0 :         free_w(&metadata);
     196           0 :         return ret;
     197             : }
     198             : 
     199           5 : int restore_switch_protocol1(struct asfd *asfd, struct sbuf *sb,
     200             :         const char *fullpath, enum action act,
     201             :         struct BFILE *bfd, int vss_restore, struct cntr *cntr,
     202             :         const char *encryption_password)
     203             : {
     204           5 :         switch(sb->path.cmd)
     205             :         {
     206             :                 case CMD_FILE:
     207             :                 case CMD_VSS_T:
     208             :                 case CMD_ENC_FILE:
     209             :                 case CMD_ENC_VSS_T:
     210             :                 case CMD_EFS_FILE:
     211           5 :                         if(!sb->protocol1->datapth.buf)
     212             :                         {
     213             :                                 char msg[256];
     214           1 :                                 snprintf(msg, sizeof(msg),
     215             :                                   "datapth not supplied for %s in %s\n",
     216             :                                         iobuf_to_printable(&sb->path),
     217             :                                         __func__);
     218           1 :                                 log_and_send(asfd, msg);
     219             :                                 return -1;
     220             :                         }
     221           4 :                         return restore_file_or_get_meta(asfd, bfd, sb,
     222             :                                 fullpath, act,
     223             :                                 NULL, NULL, vss_restore, cntr,
     224             :                                 encryption_password);
     225             :                 case CMD_METADATA:
     226             :                 case CMD_VSS:
     227             :                 case CMD_ENC_METADATA:
     228             :                 case CMD_ENC_VSS:
     229           0 :                         return restore_metadata(asfd, bfd, sb,
     230             :                                 fullpath, act,
     231             :                                 vss_restore, cntr, encryption_password);
     232             :                 default:
     233             :                         // Other cases (dir/links/etc) are handled in the
     234             :                         // calling function.
     235           0 :                         logp("unknown cmd: %c\n", sb->path.cmd);
     236           0 :                         return -1;
     237             :         }
     238             : }

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