def deltree_lind(dirname):
# took part of the code from _find_all_paths_recursively method below.
# It recursively looks at all child dirs
# I need to open the dir to use getdents...
dirfd = lind_test_server.open_syscall(dirname,0,0)
# build a list of all dents. These have an odd format:
# [(inode, filename, d_type (DT_DIR, DR_REG, etc.), length of entry), ...]
# We only care about the filename and d_type.
mydentslist = []
# Note: the length parameter is odd, it's related to data structure space, so
# it doesn't map to python cleanly. So long as it's > the largest possible
# entry size, this code should work though.
thesedents = lind_test_server.getdents_syscall(dirfd,10000)
while thesedents:
mydentslist += thesedents
thesedents = lind_test_server.getdents_syscall(dirfd,10000)
lind_test_server.close_syscall(dirfd)
for dent in mydentslist:
# ignore '.' and '..' because they aren't interesting and we don't want
# to loop forever.
if dent[1]=='.' or dent[1]=='..':
continue
thisitem = (dent[0], dirname+'/'+dent[1])
print "deleting",thisitem[1]
# if it's a directory, recurse...
if dent[2]==DT_DIR:
deltree_lind(thisitem[1])
else:
lind_test_server.unlink_syscall(thisitem[1])
lind_test_server.rmdir_syscall(dirname)
return
def main():
# I can be imported as a module too!!!
if len(sys.argv)==1:
print_usage()
return
command = sys.argv[1]
args = sys.argv[2:]
#help : print this message
#usage : print this message
if command == 'help' or command == 'usage':
print_usage()
#cp root file1 [file2...] : copies files from the root into the lindfs. For
# example, cp bar /etc/passwd /bin/ls will copy
# bar/etc/passwd, bar/bin/ls as /etc/passwd, /bin/ls
elif command == 'cp':
lind_test_server.load_fs()
if len(args)<2:
print 'Too few arguments to cp. Must specify root and at least one file'
return
root = args[0]
for filetocp in args[1:]:
cp_into_lind(filetocp, rootpath=root)
#find [startingpath] : print the names of all files / paths in the fs
# This is much like 'find /'
elif command == 'find':
lind_test_server.load_fs()
if len(args)>1:
print 'Too many arguments to find. Takes an optional path'
return
elif len(args) == 0:
startingpath = '/'
elif len(args)==1:
startingpath = args[0]
allpathlist = list_all_lind_paths(startingdir=startingpath)
# want to print this more cleanly than as a list
for thispath in allpathlist:
print thispath
#format : make a new blank fs, removing the current one.
elif command == 'format':
lind_test_server._blank_fs_init()
#deltree dirname : delete a directory and all it contains
elif command == 'deltree':
lind_test_server.load_fs()
if len(args)!= 1:
print 'deltree takes exactly one argument, the dir to remove'
return
print 'Unimplemented...'
#rm file1 [file2...] : delete a file
elif command == 'rm':
lind_test_server.load_fs()
if len(args) == 0:
print 'rm takes one or more arguments'
return
for filename in args:
lind_test_server.unlink_syscall(filename)
#mkdir dir1 [dir2...] : create a directory
elif command == 'mkdir':
lind_test_server.load_fs()
if len(args) == 0:
print 'mkdir takes one or more arguments'
return
for dirname in args:
lind_test_server.mkdir_syscall(dirname,S_IRWXA)
#rmdir dir1 [dir2...] : delete a directory
elif command == 'rmdir':
lind_test_server.load_fs()
if len(args) == 0:
print 'rmdir takes one or more arguments'
return
for dirname in args:
lind_test_server.rmdir_syscall(dirname)
# OTHERWISE?
else:
print "ERROR: command unknown"
print
print_usage()
return
def unlink(self, path):
log("unlink", path)
try:
ret = lind.unlink_syscall(path)
except lind.SyscallError, e:
ret = -errno[e[1]]
def main():
# I can be imported as a module too!!!
if len(sys.argv)==1:
print_usage()
return
command = sys.argv[1]
args = sys.argv[2:]
#help : print this message
#usage : print this message
if command == 'help' or command == 'usage':
print_usage()
#cp root file1 [file2...] : copies files from the root into the lindfs. For
# example, cp bar /etc/passwd /bin/ls will copy
# bar/etc/passwd, bar/bin/ls as /etc/passwd, /bin/ls
elif command == 'cp':
lind_test_server.load_fs()
if len(args)<2:
print 'Too few arguments to cp. Must specify root and at least one file'
return
root = args[0]
for filetocp in args[1:]:
cp_dir_into_lind(filetocp, rootpath=root)
#update root file1 [file2...] : copies files from the root into the lindfs if they are different. For
# example, cp bar /etc/passwd /bin/ls will copy
# bar/etc/passwd, bar/bin/ls as /etc/passwd, /bin/ls
elif command == 'update':
lind_test_server.load_fs()
if len(args)<2:
print 'Too few arguments to update. Must specify root and at least one file'
return
root = args[0]
for filetoup in args[1:]:
update_dir_into_lind(filetoup, rootpath=root)
#find [startingpath] : print the names of all files / paths in the fs
# This is much like 'find /'
elif command == 'find':
lind_test_server.load_fs()
if len(args)>1:
print 'Too many arguments to find. Takes an optional path'
return
elif len(args) == 0:
startingpath = '/'
elif len(args)==1:
startingpath = args[0]
allpathlist = list_all_lind_paths(startingdir=startingpath)
# want to print this more cleanly than as a list
#for thispath in allpathlist:
# print thispath
#format : make a new blank fs, removing the current one.
elif command == 'format':
lind_test_server._blank_fs_init()
#deltree dirname : delete a directory and all it contains
elif command == 'deltree':
lind_test_server.load_fs()
if len(args)!= 1:
print 'deltree takes exactly one argument, the dir to remove'
return
deltree_lind(args[0])
#rm file1 [file2...] : delete a file
elif command == 'rm':
lind_test_server.load_fs()
if len(args) == 0:
print 'rm takes one or more arguments'
return
for filename in args:
lind_test_server.unlink_syscall(filename)
#mkdir dir1 [dir2...] : create a directory
elif command == 'mkdir':
lind_test_server.load_fs()
if len(args) == 0:
print 'mkdir takes one or more arguments'
return
for dirname in args:
lind_test_server.mkdir_syscall(dirname,S_IRWXA)
#rmdir dir1 [dir2...] : delete a directory
elif command == 'rmdir':
lind_test_server.load_fs()
if len(args) == 0:
print 'rmdir takes one or more arguments'
return
for dirname in args:
lind_test_server.rmdir_syscall(dirname)
# OTHERWISE?
else:
print "ERROR: command unknown"
print
print_usage()
return
fd = open(posixfn, "rb")
host_content = fd.read()
fd.close()
lindfd = lind_test_server.open_syscall(fullfilename, O_RDONLY, 0)
lind_content = lind_test_server.read_syscall(lindfd, lind_size)
lind_test_server.close_syscall(lindfd)
samefile = (host_content == lind_content)
else:
samefile = False
if not samefile:
if lind_exists:
print "removing "+fullfilename
lind_test_server.unlink_syscall(fullfilename)
cp_into_lind(fullfilename, rootpath, True)
else:
print "same file, skipping"
def cp_dir_into_lind(fullfilename, rootpath='.', createmissingdirs=True):
if fullfilename.startswith(os.pathsep):
fullfilename = '.'+fullfilename
posixfn = os.path.join(rootpath,fullfilename)
if not os.path.exists(posixfn):
# create a file with no perms...
lind_test_server.link_syscall('/foo', '/foo2')
stat_result = lind_test_server.stat_syscall('/foo')
stat_result2 = lind_test_server.stat_syscall('/foo2')
# ensure they are the same now...
assert (stat_result2 == stat_result)
# and that the link count is 2
assert (stat_result[3] == 2)
# let's unlink one now...
lind_test_server.unlink_syscall('/foo')
stat_result = lind_test_server.stat_syscall('/foo2')
# ensure the link count is 1
assert (stat_result[3] == 1)
# file is gone...
try:
stat_result = lind_test_server.stat_syscall('/foo')
except:
pass
else:
print "stat worked after unlinked!!!"
lind_test_server.unlink_syscall('/foo2')
# read the first 5 bytes (hello)
assert (lind_test_server.read_syscall(myfd, 5) == 'hello')
# change it to hello world!
assert (lind_test_server.write_syscall(myfd, ' world') == 6)
# seek to the beginning again...
assert (lind_test_server.lseek_syscall(myfd, 0, SEEK_SET) == 0)
# and read it all...
assert (lind_test_server.read_syscall(myfd, 100) == 'hello world!')
lind_test_server.close_syscall(myfd)
# Now make and remove a file:
myfd = lind_test_server.open_syscall(TEST2_FILENAME, \
O_CREAT | O_EXCL | O_RDWR, S_IRWXA)
# write should succeed
message = '================================================================================================================================'
assert (lind_test_server.write_syscall(myfd, message) == len(message))
lind_test_server.close_syscall(myfd)
lind_test_server.unlink_syscall(TEST2_FILENAME)
lind_test_server.persist_metadata(DEFAULT_METADATA_FILENAME)
# ensure the metadata exists...
assert (os.access(DEFAULT_METADATA_FILENAME, os.W_OK))
# create a file with no perms...
lind_test_server.link_syscall('/foo','/foo2')
stat_result = lind_test_server.stat_syscall('/foo')
stat_result2 = lind_test_server.stat_syscall('/foo2')
# ensure they are the same now...
assert(stat_result2 == stat_result)
# and that the link count is 2
assert(stat_result[3] == 2)
# let's unlink one now...
lind_test_server.unlink_syscall('/foo')
stat_result = lind_test_server.stat_syscall('/foo2')
# ensure the link count is 1
assert(stat_result[3] == 1)
# file is gone...
try:
stat_result = lind_test_server.stat_syscall('/foo')
except:
pass
else:
print "stat worked after unlinked!!!"
def unlink(self, path):
log("unlink", path)
try:
ret = lind.unlink_syscall(path)
except lind.SyscallError, e:
ret = -errno[e[1]]
# read the first 5 bytes (hello)
assert lind_test_server.read_syscall(myfd, 5) == "hello"
# change it to hello world!
assert lind_test_server.write_syscall(myfd, " world") == 6
# seek to the beginning again...
assert lind_test_server.lseek_syscall(myfd, 0, SEEK_SET) == 0
# and read it all...
assert lind_test_server.read_syscall(myfd, 100) == "hello world!"
lind_test_server.close_syscall(myfd)
# Now make and remove a file:
myfd = lind_test_server.open_syscall(TEST2_FILENAME, O_CREAT | O_EXCL | O_RDWR, S_IRWXA)
# write should succeed
message = "================================================================================================================================"
assert lind_test_server.write_syscall(myfd, message) == len(message)
lind_test_server.close_syscall(myfd)
lind_test_server.unlink_syscall(TEST2_FILENAME)
lind_test_server.persist_metadata(DEFAULT_METADATA_FILENAME)
# ensure the metadata exists...
assert os.access(DEFAULT_METADATA_FILENAME, os.W_OK)