def callafter(self, pid, call, result, state):
# XXX: this needs work -- can't we just map on the way out of the
# first execve or fork/vfork/clone, as appropriate?
# NB: we don't want to map for the CLONE_VM case, since the map will
# already be there (?)
# How does CLONE_FILES and CLONE_FS affect this?
if call != 'execve':
if not _mapped.has_key(pid):
# print 'Scratch: Deciding to poison ', pid, 's address space'
_mapped[pid] = 1
r = p_linux_i386.force_syscall(pid,
syscallmap.lookup_number('mmap2'),
scratch.base(),
scratch.safe_len(),
1, # PROT_READ
0x12, # PRIVATE | FIXED
123, 0)
assert r == scratch.base(), "mmap failed (%s)" % r
if call == 'execve':
# print 'Scratch: execve -- forgetting on pid', pid
try:
del _mapped[pid]
except:
print '%d did execve but I had not him mapped?' % pid
def callafter(self, pid, call, result, state):
# XXX: this needs work -- can't we just map on the way out of the
# first execve or fork/vfork/clone, as appropriate?
# NB: we don't want to map for the CLONE_VM case, since the map will
# already be there (?)
# How does CLONE_FILES and CLONE_FS affect this?
if call != 'execve':
if not _mapped.has_key(pid):
# print 'Scratch: Deciding to poison ', pid, 's address space'
_mapped[pid] = 1
r = p_linux_i386.force_syscall(
pid,
syscallmap.lookup_number('mmap2'),
scratch.base(),
scratch.safe_len(),
1, # PROT_READ
0x12, # PRIVATE | FIXED
123,
0)
assert r == scratch.base(), "mmap failed (%s)" % r
if call == 'execve':
# print 'Scratch: execve -- forgetting on pid', pid
try:
del _mapped[pid]
except:
print '%d did execve but I had not him mapped?' % pid
def __init__(self, options):
self.start = options.get('start', scratch.base())
self.end = options.get('end', scratch.base() + scratch.safe_len())
def __init__(self, options):
self.start = options.get('start', scratch.base())
self.end = options.get('end', scratch.base() + scratch.safe_len())
