FM / tcmsg

/opt/imh-python/lib/python3.9/site-packages/pyroute2/netlink/rtnl/tcmsg/

/opt/imh-python/lib/python3.9/site-packages/pyroute2/netlink/rtnl/tcmsg

Name	Size	Mode	Actions
__pycache__/	-	0755	rm
act_bpf.py	979	0644	edit dl rm
act_connmark.py	1234	0644	edit dl rm
act_gact.py	709	0644	edit dl rm
act_mirred.py	1725	0644	edit dl rm
act_police.py	1866	0644	edit dl rm
act_skbedit.py	3337	0644	edit dl rm
act_vlan.py	1465	0644	edit dl rm
cls_basic.py	8478	0644	edit dl rm
cls_flow.py	4613	0644	edit dl rm
cls_fw.py	1427	0644	edit dl rm
cls_matchall.py	986	0644	edit dl rm
cls_u32.py	8034	0644	edit dl rm
common.py	10728	0644	edit dl rm
common_act.py	2063	0644	edit dl rm
common_ematch.py	3148	0644	edit dl rm
em_cmp.py	2776	0644	edit dl rm
em_ipset.py	1741	0644	edit dl rm
em_meta.py	5933	0644	edit dl rm
sched_bpf.py	2571	0644	edit dl rm
sched_cake.py	12833	0644	edit dl rm
sched_choke.py	3432	0644	edit dl rm
sched_clsact.py	1011	0644	edit dl rm
sched_codel.py	1607	0644	edit dl rm
sched_drr.py	755	0644	edit dl rm
sched_fq_codel.py	2658	0644	edit dl rm
sched_hfsc.py	2353	0644	edit dl rm
sched_htb.py	5739	0644	edit dl rm
sched_ingress.py	214	0644	edit dl rm
sched_netem.py	5142	0644	edit dl rm
sched_pfifo.py	196	0644	edit dl rm
sched_pfifo_fast.py	215	0644	edit dl rm
sched_plug.py	446	0644	edit dl rm
sched_sfq.py	2717	0644	edit dl rm
sched_tbf.py	1087	0644	edit dl rm
sched_template.py	1250	0644	edit dl rm
__init__.py	2743	0644	edit dl rm

Edit: /opt/imh-python/lib/python3.9/site-packages/pyroute2/netlink/rtnl/tcmsg/em_meta.py (5933B)

from struct import pack, unpack

from pyroute2.netlink import nla

TCF_EM_OPND_EQ = 0
TCF_EM_OPND_GT = 1
TCF_EM_OPND_LT = 2

OPERANDS_DICT = {
    TCF_EM_OPND_EQ: ('eq', '='),
    TCF_EM_OPND_GT: ('gt', '>'),
    TCF_EM_OPND_LT: ('lt', '<'),
}

# meta types
TCF_META_TYPE_VAR = 0
TCF_META_TYPE_INT = 1

TCF_META_ID_MASK = 0x7FF
TCF_META_TYPE_MASK = 0xF << 12

# see tc_em_meta.h
META_ID = {
    'value': 0,
    'random': 1,
    'loadavg_0': 2,
    'loadavg_1': 3,
    'loadavg_2': 4,
    'dev': 5,
    'priority': 6,
    'protocol': 7,
    'pkttype': 8,
    'pktlen': 9,
    'datalen': 10,
    'maclen': 11,
    'nfmark': 12,
    'tcindex': 13,
    'rtclassid': 14,
    'rtiif': 15,
    'sk_family': 16,
    'sk_state': 17,
    'sk_reuse': 18,
    'sk_bound_if': 19,
    'sk_refcnt': 20,
    'sk_shutdown': 21,
    'sk_proto': 22,
    'sk_type': 23,
    'sk_rcvbuf': 24,
    'sk_rmem_alloc': 25,
    'sk_wmem_alloc': 26,
    'sk_omem_alloc': 27,
    'sk_wmem_queued': 28,
    'sk_rcv_qlen': 29,
    'sk_snd_qlen': 30,
    'sk_err_qlen': 31,
    'sk_forward_allocs': 32,
    'sk_sndbuf': 33,
    'sk_allocs': 34,
    'sk_route_caps': 35,
    'sk_hash': 36,
    'sk_lingertime': 37,
    'sk_ack_backlog': 38,
    'sk_max_ack_backlog': 39,
    'sk_prio': 40,
    'sk_rcvlowat': 41,
    'sk_rcvtimeo': 42,
    'sk_sndtimeo': 43,
    'sk_sendmsg_off': 44,
    'sk_write_pending': 45,
    'vlan_tag': 46,
    'rxhash': 47,
}

strings_meta = ('dev', 'sk_bound_if')

class data(nla):
    nla_map = (
        ('TCA_EM_META_UNSPEC', 'none'),
        ('TCA_EM_META_HDR', 'tca_em_meta_header_parse'),
        ('TCA_EM_META_LVALUE', 'uint32'),
        ('TCA_EM_META_RVALUE', 'hex'),
    )

def decode(self):
        self.header = None
        self.length = 24
        nla.decode(self)

# Patch to have a better view in nldecap
        attrs = dict(self['attrs'])
        rvalue = attrs.get('TCA_EM_META_RVALUE')
        meta_hdr = attrs.get('TCA_EM_META_HDR')
        meta_id = meta_hdr['id']
        rvalue = bytearray.fromhex(rvalue.replace(':', ''))
        if meta_id == 'TCF_META_TYPE_VAR':
            rvalue.decode('utf-8')
        if meta_id == 'TCF_META_TYPE_INT':
            rvalue = unpack('<I', rvalue)[0]
        self['attrs'][2] = ('TCA_EM_META_RVALUE', rvalue)

def encode(self):
        if 'object' not in self:
            raise ValueError('An object definition must be given!')

if 'value' not in self:
            raise ValueError('A value must be given!')

# The value can either be a string or an int depending
        # on the selected meta kind.
        # It is really important to distinct them otherwise
        # the kernel won't be nice with us...
        value = self['value']
        kind = self['object'].get('kind')
        if not kind:
            raise ValueError('Not meta kind specified!')
        else:
            if kind in strings_meta:
                if not isinstance(value, str):
                    raise ValueError(
                        '{} kinds have to use string value!'.format(
                            ' and '.join(strings_meta)
                        )
                    )
                else:
                    value = value.encode('utf-8')
            else:
                if not isinstance(value, int):
                    raise ValueError(
                        'Invalid value specified, it must ' 'be an integer'
                    )
                else:
                    value = pack('<I', value)

self['attrs'].append(['TCA_EM_META_HDR', self['object']])
        self['attrs'].append(['TCA_EM_META_LVALUE', self.get('mask', 0)])
        self['attrs'].append(['TCA_EM_META_RVALUE', value])
        nla.encode(self)

# Patch NLA structure
        self['header']['length'] -= 4
        self.data = self.data[4:]

class tca_em_meta_header_parse(nla):
        fields = (
            ('kind', 'H'),
            ('shift', 'B'),
            ('opnd', 'B'),
            ('id', 'H'),
            ('pad', 'H'),
        )

def decode(self):
            nla.decode(self)

self['id'] = (self['kind'] & TCF_META_TYPE_MASK) >> 12
            if self['id'] == TCF_META_TYPE_VAR:
                self['id'] = 'TCF_META_TYPE_VAR'
            elif self['id'] == TCF_META_TYPE_INT:
                self['id'] = 'TCF_META_TYPE_INT'
            else:
                pass

self['kind'] &= TCF_META_ID_MASK
            for k, v in META_ID.items():
                if self['kind'] == v:
                    self['kind'] = 'TCF_META_ID_{}'.format(k.upper())

fmt = 'TCF_EM_OPND_{}'.format(
                OPERANDS_DICT[self['opnd']][0].upper()
            )
            self['opnd'] = fmt
            del self['pad']

def encode(self):
            if not isinstance(self['kind'], str):
                raise ValueError("kind' keywords must be set!")

kind = self['kind'].lower()
            if kind in strings_meta:
                self['id'] = TCF_META_TYPE_VAR
            else:
                self['id'] = TCF_META_TYPE_INT
            self['id'] <<= 12

for k, v in META_ID.items():
                if kind == k:
                    self['kind'] = self['id'] | v
                    break

if isinstance(self['opnd'], str):
                for k, v in OPERANDS_DICT.items():
                    if self['opnd'].lower() in v:
                        self['opnd'] = k
                        break

# Perform sanity checks on 'shift' value
            if isinstance(self['shift'], str):
                # If it fails, it will raise a ValueError
                # which is what we want
                self['shift'] = int(self['shift'])
            if not 0 <= self['shift'] <= 255:
                raise ValueError(
                    "'shift' value must be between" "0 and 255 included!"
                )
            nla.encode(self)

from struct import pack, unpack from pyroute2.netlink import nla TCF_EM_OPND_EQ = 0 TCF_EM_OPND_GT = 1 TCF_EM_OPND_LT = 2 OPERANDS_DICT = { TCF_EM_OPND_EQ: ('eq', '='), TCF_EM_OPND_GT: ('gt', '>'), TCF_EM_OPND_LT: ('lt', '<'), } # meta types TCF_META_TYPE_VAR = 0 TCF_META_TYPE_INT = 1 TCF_META_ID_MASK = 0x7FF TCF_META_TYPE_MASK = 0xF << 12 # see tc_em_meta.h META_ID = { 'value': 0, 'random': 1, 'loadavg_0': 2, 'loadavg_1': 3, 'loadavg_2': 4, 'dev': 5, 'priority': 6, 'protocol': 7, 'pkttype': 8, 'pktlen': 9, 'datalen': 10, 'maclen': 11, 'nfmark': 12, 'tcindex': 13, 'rtclassid': 14, 'rtiif': 15, 'sk_family': 16, 'sk_state': 17, 'sk_reuse': 18, 'sk_bound_if': 19, 'sk_refcnt': 20, 'sk_shutdown': 21, 'sk_proto': 22, 'sk_type': 23, 'sk_rcvbuf': 24, 'sk_rmem_alloc': 25, 'sk_wmem_alloc': 26, 'sk_omem_alloc': 27, 'sk_wmem_queued': 28, 'sk_rcv_qlen': 29, 'sk_snd_qlen': 30, 'sk_err_qlen': 31, 'sk_forward_allocs': 32, 'sk_sndbuf': 33, 'sk_allocs': 34, 'sk_route_caps': 35, 'sk_hash': 36, 'sk_lingertime': 37, 'sk_ack_backlog': 38, 'sk_max_ack_backlog': 39, 'sk_prio': 40, 'sk_rcvlowat': 41, 'sk_rcvtimeo': 42, 'sk_sndtimeo': 43, 'sk_sendmsg_off': 44, 'sk_write_pending': 45, 'vlan_tag': 46, 'rxhash': 47, } strings_meta = ('dev', 'sk_bound_if') class data(nla): nla_map = ( ('TCA_EM_META_UNSPEC', 'none'), ('TCA_EM_META_HDR', 'tca_em_meta_header_parse'), ('TCA_EM_META_LVALUE', 'uint32'), ('TCA_EM_META_RVALUE', 'hex'), ) def decode(self): self.header = None self.length = 24 nla.decode(self) # Patch to have a better view in nldecap attrs = dict(self['attrs']) rvalue = attrs.get('TCA_EM_META_RVALUE') meta_hdr = attrs.get('TCA_EM_META_HDR') meta_id = meta_hdr['id'] rvalue = bytearray.fromhex(rvalue.replace(':', '')) if meta_id == 'TCF_META_TYPE_VAR': rvalue.decode('utf-8') if meta_id == 'TCF_META_TYPE_INT': rvalue = unpack('> 12 if self['id'] == TCF_META_TYPE_VAR: self['id'] = 'TCF_META_TYPE_VAR' elif self['id'] == TCF_META_TYPE_INT: self['id'] = 'TCF_META_TYPE_INT' else: pass self['kind'] &= TCF_META_ID_MASK for k, v in META_ID.items(): if self['kind'] == v: self['kind'] = 'TCF_META_ID_{}'.format(k.upper()) fmt = 'TCF_EM_OPND_{}'.format( OPERANDS_DICT[self['opnd']][0].upper() ) self['opnd'] = fmt del self['pad'] def encode(self): if not isinstance(self['kind'], str): raise ValueError("kind' keywords must be set!") kind = self['kind'].lower() if kind in strings_meta: self['id'] = TCF_META_TYPE_VAR else: self['id'] = TCF_META_TYPE_INT self['id'] <<= 12 for k, v in META_ID.items(): if kind == k: self['kind'] = self['id'] | v break if isinstance(self['opnd'], str): for k, v in OPERANDS_DICT.items(): if self['opnd'].lower() in v: self['opnd'] = k break # Perform sanity checks on 'shift' value if isinstance(self['shift'], str): # If it fails, it will raise a ValueError # which is what we want self['shift'] = int(self['shift']) if not 0 <= self['shift'] <= 255: raise ValueError( "'shift' value must be between" "0 and 255 included!" ) nla.encode(self)