| 1 | #!/usr/bin/python
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| 2 | #
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| 3 | # Copyright (C) 2012 Luiz Angelo Daros de Luca <luizluca@gmail.com>
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| 4 | #
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| 5 | # This program is free software: you can redistribute it and/or modify
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| 6 | # it under the terms of the GNU General Public License as published by
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| 7 | # the Free Software Foundation, either version 3 of the License, or
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| 8 | # (at your option) any later version.
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| 9 | #
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| 10 | # This program is distributed in the hope that it will be useful,
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| 11 | # but WITHOUT ANY WARRANTY; without even the implied warranty of
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| 12 | # MERCHANTABILITY or FITNESS FOR A PARTICULAR PURPOSE. See the
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| 13 | # GNU General Public License for more details.
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| 14 | #
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| 15 | # You should have received a copy of the GNU General Public License
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| 16 | # along with this program. If not, see <http://www.gnu.org/licenses/>.
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| 17 | #
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| 18 | #
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| 19 | # This program dumps the VM memory to the standard output.
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| 20 | # Generally, it will be used like this:
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| 21 | #
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| 22 | # vboxdump.py MyVM > MyVM.memdump
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| 23 | #
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| 24 | import os,sys
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| 25 | from vboxapi import VirtualBoxManager
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| 26 |
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| 27 | def main(argv):
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| 28 | vboxman = VirtualBoxManager(None, None)
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| 29 |
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| 30 | if len(sys.argv) < 2:
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| 31 | print >> sys.stderr, "Use: %s machine-id\n" % (sys.argv[0])
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| 32 | return
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| 33 |
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| 34 | id=sys.argv[1]
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| 35 |
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| 36 | mach = None
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| 37 | pagesize=4096
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| 38 | seek=0
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| 39 | try:
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| 40 | mach = vboxman.vbox.getMachine(id)
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| 41 | except:
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| 42 | mach = vboxman.vbox.findMachine(id)
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| 43 |
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| 44 | if mach == None:
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| 45 | print >> sys.stderr, "Machine '%s' is unknown, use list command to find available machines" %(id)
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| 46 | return
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| 47 |
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| 48 | try:
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| 49 | vb = vboxman.vbox
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| 50 | session = vboxman.mgr.getSessionObject(vb)
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| 51 | mach.lockMachine(session, vboxman.constants.LockType_Shared)
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| 52 | except Exception,e:
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| 53 | print >> sys.stderr, "Session to '%s' not open: %s" %(mach.name,str(e))
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| 54 | return
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| 55 | if session.state != vboxman.constants.SessionState_Locked:
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| 56 | print >> sys.stderr, "Session to '%s' in wrong state: %s" %(mach.name, session.state)
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| 57 | session.unlockMachine()
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| 58 | return
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| 59 | console=session.console
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| 60 | try:
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| 61 | # pause the machine
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| 62 | console.pause()
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| 63 | debugger=console.debugger
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| 64 | npages=(mach.memorySize*1024)/(pagesize/1024)
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| 65 | print >> sys.stderr, "Dumping \"%s\" memory (%lu Megabytes, %lu pages of %lu bytes)" % (mach.name , mach.memorySize, npages, pagesize)
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| 66 | #for seek in range(0, (mach.memorySize-1)*kbytes):
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| 67 | for seek in range(0, npages-1):
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| 68 | print >> sys.stderr, "page:%lu (pos:%lukb)" % (seek, seek*pagesize/1024)
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| 69 | try:
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| 70 | buf=debugger.readPhysicalMemory(seek*pagesize, pagesize)
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| 71 | except Exception, e:
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| 72 | # Reserved, like MMIO
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| 73 | if e.errno==-1618:
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| 74 | print >> sys.stderr, "skiping %lu reserved bytes at 0x%lx" % (pagesize, seek * pagesize)
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| 75 | buf="\x00"*1024
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| 76 | else:
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| 77 | raise
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| 78 | print buf,
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| 79 | del buf
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| 80 | except KeyboardInterrupt:
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| 81 | print >> sys.stderr, "Interrupted!\n"
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| 82 | except Exception, e:
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| 83 | print dir(e)
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| 84 | print e.errno
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| 85 | print >> sys.stderr, "Failed to read at 0x%lx(%lu bytes): %s" % (seek * pagesize, pagesize, e)
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| 86 | # Resume machine
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| 87 | console.resume()
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| 88 | session.unlockMachine()
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| 89 | vboxman.deinit()
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| 90 | del vboxman
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| 91 |
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| 92 | if __name__ == '__main__':
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| 93 | main(sys.argv)
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