def add_flow_table(self, switch_id, table_name, table_type, table_size, match_field_list = []):
# Have been tested
if (switch_id not in self.switches) or (table_name == None) or (len(table_name) == 0):
return FLOWTABLEID_INVALID
if (table_size == 0) or (table_type < 0) or (table_type >= of.OF_MAX_TABLE_TYPE):
return FLOWTABLEID_INVALID
if (table_type == of.OF_LINEAR_TABLE) and (len(match_field_list) != 0):
return FLOWTABLEID_INVALID
if (table_type != of.OF_LINEAR_TABLE) and (len(match_field_list) == 0):
return FLOWTABLEID_INVALID
field_num = len(match_field_list)
key_length = 0
for field in match_field_list:
key_length += field.length
global_table_id = self.database.add_flow_table(switch_id, table_name, table_type, key_length, table_size, field_num, match_field_list)
if global_table_id == FLOWTABLEID_INVALID:
return FLOWTABLEID_INVALID
flow_table = self.database.get_flow_table(switch_id, global_table_id)
msg = of.ofp_table_mod()
msg.flow_table = flow_table
self.write_of(switch_id, msg)
#self.add_sended_msg(switch_id, msg)
return global_table_id
def add_flow_table(self, switch_id, table_name, table_type, table_size, match_field_list = []):
# Have been tested
if (switch_id not in self.switches) or (table_name == None) or (len(table_name) == 0):
log.error("no such switch_id or wrong table name")
return FLOWTABLEID_INVALID
if (table_size == 0) or (table_type < 0) or (table_type >= of.OF_MAX_TABLE_TYPE):
log.error("wrong table size or wrong table type")
return FLOWTABLEID_INVALID
if (table_type == of.OF_LINEAR_TABLE) and (len(match_field_list) != 0):
log.error("wrong match_field_list")
return FLOWTABLEID_INVALID
if (table_type != of.OF_LINEAR_TABLE) and (len(match_field_list) == 0):
log.error("wrong match_field_list")
return FLOWTABLEID_INVALID
field_num = len(match_field_list) # calculate the field_num
key_length = 0
for field in match_field_list: # calculate the key_length
key_length += field.length
global_table_id = self.database.add_flow_table(switch_id, table_name, table_type, key_length, table_size, field_num, match_field_list)
if global_table_id == FLOWTABLEID_INVALID:
log.error("ERROR when add flow table in PMDatabase")
return FLOWTABLEID_INVALID
flow_table = self.database.get_flow_table(switch_id, global_table_id)
msg = of.ofp_table_mod()
msg.flow_table = flow_table
self.write_of(switch_id, msg)
msg_info = ''
msg_info += ('ADD <table[' + str(flow_table.table_type) + '][' + str(flow_table.table_id) + ']> ')
msg_info += ('[G_TID] ' + str(global_table_id) + ' [T_NAME] ' + flow_table.table_name)
#log.info('ADD <table[' + str(flow_table.table_type) + '][' + str(flow_table.table_id) + ']> ' + flow_table.table_name)
log.info(msg_info)
#self.add_sended_msg(switch_id, msg)
return global_table_id
def _handle_ConnectionUp(self, event):
msg = pof.ofp_table_mod()
match = pof.ofp_match20(field_id=1, offset=0, length=48)
#match.field_id = 1
#match.offset = 0
#match.length = 48
msg.flow_table.match_field_list.append(match)
msg.flow_table.match_field_num = 1
msg.flow_table.table_size = 128
msg.flow_table.key_length = 48
msg.flow_table.table_name = 'FirstEntryTable'
print 'send TABLE_MOD message:\n', msg
event.connection.send(msg)
"""
def del_empty_flow_table(self, switch_id, global_table_id):
# Have been tested
flow_entry_map = self.database.get_flow_entries_map(switch_id, global_table_id)
if len(flow_entry_map) != 0:
log.error("table is not empty")
return False
flow_table = self.get_flow_table(switch_id, global_table_id)
if flow_table is None:
log.error("table doesn't exist, no need to delete")
return True
self.database.delete_flow_table(switch_id, flow_table.table_type, global_table_id)
flow_table.command = of.OFPTC_DELETE
table_mod = of.ofp_table_mod()
table_mod.flow_table = flow_table
self.write_of(switch_id, table_mod) # send to switch
return True
def del_empty_flow_table(self, switch_id, global_table_id):
# Have been tested
flow_entry_map = self.database.get_flow_entries_map(switch_id, global_table_id)
if len(flow_entry_map) != 0:
log.error("table is not empty")
return False
flow_table = self.get_flow_table(switch_id, global_table_id)
if flow_table is None:
log.error("table doesn't exist, no need to delete")
return True
self.database.delete_flow_table(switch_id, flow_table.table_type, global_table_id)
flow_table.command = of.OFPTC_DELETE
table_mod = of.ofp_table_mod()
table_mod.flow_table = flow_table
self.write_of(switch_id, table_mod) # send to switch
return True
def _handle_ConnectionUp(self, event):
msg = pof.ofp_table_mod()
match = pof.ofp_match20(field_id = 1, offset = 0, length = 48)
#match.field_id = 1
#match.offset = 0
#match.length = 48
msg.flow_table.match_field_list.append(match)
msg.flow_table.match_field_num = 1
msg.flow_table.table_size = 128
msg.flow_table.key_length = 48
msg.flow_table.table_name = 'FirstEntryTable'
print 'send TABLE_MOD message:\n', msg
event.connection.send(msg)
"""
def _handle_ConnectionUp(self, event):
msg = pof.ofp_table_mod()
match = pof.ofp_match20()
match.field_id = 1
match.offset = 0
match.length = 48
msg.flow_table.match_field_list.append(match)
msg.flow_table.match_field_num = 1
msg.flow_table.table_size = 128
msg.flow_table.key_length = 48
msg.flow_table.table_name = 'FirstEntryTable'
print 'send TABLE_MOD message:\n', msg
event.connection.send(msg)
msg = pof.ofp_flow_mod()
msg.priority = 0
msg.table_id=0
matchx = pof.ofp_matchx()
matchx.field_id = 1
matchx.offset = 0
matchx.length = 48
matchx.value="010203040506"
matchx.mask="000000000000"
msg.match_list.append(matchx)
msg.match_field_num = 1
instruction = pof.ofp_instruction_goto_table()
instruction.next_table_id=1
#instruction.type = 6
#instruction.length = 16
msg.instruction_list.append(instruction)
msg.instruction_num = 1
print 'send FLOW_MOD message:\n', msg
event.connection.send(msg)
def _handle_ConnectionUp(self, event):
msg = pof.ofp_table_mod()
match = pof.ofp_match20()
match.field_id = 1
match.offset = 0
match.length = 48
msg.flow_table.match_field_list.append(match)
msg.flow_table.match_field_num = 1
msg.flow_table.table_size = 128
msg.flow_table.key_length = 48
msg.flow_table.table_name = 'FirstEntryTable'
print 'send TABLE_MOD message:\n', msg
event.connection.send(msg)
msg = pof.ofp_flow_mod()
msg.priority = 0
msg.table_id = 0
matchx = pof.ofp_matchx()
matchx.field_id = 1
matchx.offset = 0
matchx.length = 48
matchx.value = "010203040506"
matchx.mask = "000000000000"
msg.match_list.append(matchx)
msg.match_field_num = 1
instruction = pof.ofp_instruction_goto_table()
instruction.next_table_id = 1
#instruction.type = 6
#instruction.length = 16
msg.instruction_list.append(instruction)
msg.instruction_num = 1
print 'send FLOW_MOD message:\n', msg
event.connection.send(msg)
def add_flow_table(self,
switch_id,
table_name,
table_type,
table_size,
match_field_list=[]):
# Have been tested
if (switch_id not in self.switches) or (table_name
== None) or (len(table_name)
== 0):
return FLOWTABLEID_INVALID
if (table_size == 0) or (table_type < 0) or (table_type >=
of.OF_MAX_TABLE_TYPE):
return FLOWTABLEID_INVALID
if (table_type == of.OF_LINEAR_TABLE) and (len(match_field_list) != 0):
return FLOWTABLEID_INVALID
if (table_type != of.OF_LINEAR_TABLE) and (len(match_field_list) == 0):
return FLOWTABLEID_INVALID
field_num = len(match_field_list)
key_length = 0
for field in match_field_list:
key_length += field.length
global_table_id = self.database.add_flow_table(switch_id, table_name,
table_type, key_length,
table_size, field_num,
match_field_list)
if global_table_id == FLOWTABLEID_INVALID:
return FLOWTABLEID_INVALID
flow_table = self.database.get_flow_table(switch_id, global_table_id)
msg = of.ofp_table_mod()
msg.flow_table = flow_table
self.write_of(switch_id, msg)
#self.add_sended_msg(switch_id, msg)
return global_table_id
