def check(cls, name):
zfs = Popen(['/sbin/zfs', 'list', name], stdout=-1)
if zfs.wait():
return False
if zfs.stdout.next().startswith('cannot open'):
return False
return True
def loadrunning(cls):
cls._loaded = []
devfs = Popen(['/sbin/devfs','rule','showsets'],stdout=-1)
devfs.wait()
for line in devfs.stdout:
cls._loaded.append(int(line.strip()))
def refresh(self, force=True):
if (len(self.properties) > 0) and not force:
return
self.properties = {}
zfs = Popen(['/sbin/zfs', 'get', 'all', self.parent], stdout=-1)
if zfs.wait():
raise Exception('properties could not be read')
zfs.stdout.next()
for line in zfs.stdout:
prop = Property(*line.split())
self.properties[prop.name] = prop
def populate(self, force=False):
if not (force or (len(self) == 0)):
return
self.clear()
zfs = Popen(['/sbin/zfs', 'list', '-r', '-t', 'snapshot', self.parent], stdout=-1)
if zfs.wait():
raise Exception('snapshots could not be read')
zfs.stdout.next()
for line in zfs.stdout:
snap = Snapshot(line.split()[0])
if snap.path == self.parent:
self.append(snap)
def populate(self, force=False):
if not (force or (len(self) == 0)):
return
self.clear()
zfs = Popen(['/sbin/zfs', 'list', '-r', self.parent], stdout=-1)
if zfs.wait():
raise Exception('filesystems could not be read')
zfs.stdout.next()
for line in zfs.stdout:
fs = FileSystem(line.split()[0])
if fs.parent == self.parent:
self.append(fs)
def _ifprestop(self):
if not self.vlan:
return
ifc = Popen(['/usr/sbin/jexec',self.jid,'/sbin/ifconfig'], stdout=-1)
ifc.wait()
for line in ifc.stdout:
if line.startswith('\t'):
continue
int = line.split(':')[0]
if int.startswith('epair') and int.endswith('b'):
break
self._ifpair = int[:-1]
def fromdevfs(cls, name, id):
id = int(id)
if id in cls._byid:
return cls._byid[id]
lines = []
devfs = Popen(['/sbin/devfs','rule','-s',str(id),'show'], stdout=-1)
devfs.wait()
for line in devfs.stdout:
lines.append(line.strip())
if len(lines):
return cls.fromlines(name, id, lines)
else:
return None
def start(self, force=False):
if self.running:
print self.name+' is already running'
return False
if not (self.enable or force):
return False
print 'starting '+self.name
self._mount()
self._ifprestart()
cmd = self._buildcommand()
if self.vlan:
jail = Popen(cmd, stdin=-1)
else:
jail = Popen(cmd)
if jail.poll() > 0:
print self.name+' failed'
return
self._ifpoststart()
if self.vlan:
if jail.poll() is None:
jail.stdin.close()
else:
jail.wait()
self.running = True
def _ifprestart(self):
if self.vlan:
# search for existing usable vlan
ifc = Popen(['/sbin/ifconfig'], stdout=-1)
ifc.wait()
pairs = {}
for line in ifc.stdout:
if not line.startswith('epair'):
continue
pair = line.split(':')[0][:-1]
if pair in pairs:
pairs[pair] += 1
else:
pairs[pair] = 1
for k,v in sorted(pairs.items()):
if v == 2:
self._ifpair = k
break
else:
# create a new vlan
ifc = Popen(['/sbin/ifconfig','epair','create'], stdout=-1)
ifc.wait()
self._ifpair = ifc.stdout.readline().rstrip()[:-1]
call(['/sbin/ifconfig','bridge0','addm',self._ifpair+'a'])
call(['/sbin/ifconfig',self._ifpair+'a','up'])
else:
for ip in self.ip4:
call(['/sbin/ifconfig',self.iface,'alias',ip,'netmask','255.255.255.255'])
for ip in self.ip6:
call(['/sbin/ifconfig',self.iface,'inet6',ip,'prefixlen','128'])
def loadrunning(cls):
if len(cls._modules) == 0:
cls.loadlist()
for module in cls._modules.values():
module.running = False
jls = Popen('/usr/sbin/jls',stdout=-1)
jls.wait()
for line in jls.stdout:
try:
id,ip,hn,rd = line.split()
for module in cls._modules.values():
if not module.enable:
continue
if rd == module.rootdir:
module.running = True
module.jid = id
break
except:
pass
