def mpls_tun1_group(dpath, mod, ofctl):
"""
MPLS Tunnel1 Label Group
"""
_LOG.debug("MPLS Tunnel1 Group: %d %s %s", dpath.id, mod, ofctl)
entry = mod.mpls_label
cmd = fibcapi.group_mod_cmd(mod.cmd, dpath.ofproto)
gid = fibcapi.mpls_label_group_id(3, entry.dst_id)
def _buckets():
if not ofgroup.is_bucket_needed(dpath, cmd):
return []
next_gid = fibcapi.mpls_interface_group_id(entry.ne_id)
actions = [
ofaction.push_mpls(fibcapi.ETHTYPE_MPLS),
ofaction.set_field("mpls_label", entry.new_label),
ofaction.set_mpls_ttl(64),
ofaction.group(next_gid),
]
return [dict(actions=actions)]
group = ofgroup.group_mod(gid, "INDIRECT", _buckets)
ofctl.mod_group_entry(dpath, group, cmd)
def get_next_gid(entry):
"""
Get Next Group Id
"""
if entry.ne_id != 0:
return fibcapi.mpls_interface_group_id(entry.ne_id)
elif entry.new_dst_id != 0:
return fibcapi.mpls_label_group_id(3, entry.new_dst_id)
return None
def _writes():
if not offlow.is_action_needed(dpath, cmd):
return []
if entry.g_type == pb.GroupMod.MPLS_INTERFACE:
return [
ofaction.group(fibcapi.mpls_interface_group_id(entry.g_id))
]
if entry.g_type == pb.GroupMod.MPLS_SWAP:
return [ofaction.group(fibcapi.mpls_label_group_id(5, entry.g_id))]
if entry.g_type == pb.GroupMod.MPLS_FF:
return [ofaction.group(fibcapi.mpls_ff_group_id(entry.g_id))]
if entry.g_type == pb.GroupMod.MPLS_ECMP:
return [ofaction.group(fibcapi.mpls_ecmp_group_id(entry.g_id))]
return []
def _writes():
if not offlow.is_action_needed(dpath, cmd):
return []
writes = [ofaction.dec_nw_ttl()]
if entry.g_type == pb.GroupMod.L3_UNICAST:
writes.append(
ofaction.group(fibcapi.l3_unicast_group_id(entry.g_id)))
elif entry.g_type == pb.GroupMod.L3_ECMP:
writes.append(ofaction.group(fibcapi.l3_ecmp_group_id(entry.g_id)))
elif entry.g_type == pb.GroupMod.MPLS_L3_VPN:
writes.append(
ofaction.group(fibcapi.mpls_label_group_id(2, entry.g_id)))
else:
pass
return writes
def mpls_l3_vpn_group(dpath, mod, ofctl, mpls_bos=True):
"""
MPLS L3 VPN Group
"""
_LOG.debug("MPLS L3 VPN Group: %d %s %s", dpath.id, mod, ofctl)
def get_next_gid(entry):
"""
Get Next Group Id
"""
if entry.ne_id != 0:
return fibcapi.mpls_interface_group_id(entry.ne_id)
elif entry.new_dst_id != 0:
return fibcapi.mpls_label_group_id(3, entry.new_dst_id)
return None
entry = mod.mpls_label
cmd = fibcapi.group_mod_cmd(mod.cmd, dpath.ofproto)
gid = fibcapi.mpls_label_group_id(2, entry.dst_id)
def _buckets():
if not ofgroup.is_bucket_needed(dpath, cmd):
return []
next_gid = get_next_gid(entry)
actions = [
ofaction.push_mpls(fibcapi.ETHTYPE_MPLS),
ofaction.set_field("mpls_label", entry.new_label),
]
if mpls_bos:
actions.append(ofaction.set_field("mpls_bos", 1))
actions.append(ofaction.set_mpls_ttl(64))
actions.append(ofaction.group(next_gid))
return [dict(actions=actions)]
group = ofgroup.group_mod(gid, "INDIRECT", _buckets)
ofctl.mod_group_entry(dpath, group, cmd)