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osmo-gsm-tester
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open5gs: Avoid use of non-standard ports 

Despite open5gs allowing to change the GTP ports in the config file, in
reality changing those values to something else than the standard prot
will fail. Hence, we must use the standard port. As a result, we must
use different IP addresses in each process to avoid ip+port collisions.
Let's use some loopback addresses which shouldn't require extra
configuration on the host, and still only requiring 1 run_node as per
existing EPCs, with the limitation that only 1 open5gs EPC instance can
be run at one in a given run_node.

Related: https://github.com/open5gs/open5gs/issues/897
Change-Id: Id3062c6ad9d6de4c6066547e1e46edad5da285c1
This commit is contained in:
Pau Espin 2021-03-31 13:35:04 +02:00
parent 0696c60812
commit d776059deb
6 changed files with 70 additions and 51 deletions
Show Stats Download Patch File Download Diff File Expand all files Collapse all files

75
src/osmo_gsm_tester/obj/epc_open5gs.py
View File

@ -39,7 +39,9 @@ def on_register_schemas():
schema.register_config_schema('epc', config_schema)
class Open5gsEPC(epc.EPC):
##############
# PROTECTED
##############
REMOTE_DIR = '/osmo-gsm-tester-open5gs'
def __init__(self, testenv, run_node):
@ -54,6 +56,43 @@ class Open5gsEPC(epc.EPC):
self.sgwu = None
self.subscriber_list = []
def configure(self):
values = super().configure(['open5gsepc'])
db_host = values['epc']['db_host']
db_uri = 'mongodb://'+db_host+'/open5gs'
config.overlay(values, dict(epc=dict(db_uri=db_uri,
tun_addr=self.tun_addr(),
addr_smf=self.priv_addr_smf(),
addr_upf=self.priv_addr_upf(),
addr_sgwc=self.priv_addr_sgwc(),
addr_sgwu=self.priv_addr_sgwu(),
)))
self.fill_subscribers_mongodb(values['epc']['db_host'], 27017)
self.pcrf = Open5gsPCRF(self.testenv, self)
self.upf = Open5gsUPF(self.testenv, self)
self.smf = Open5gsSMF(self.testenv, self)
self.hss = Open5gsHSS(self.testenv, self)
self.mme = Open5gsMME(self.testenv, self)
self.sgwc = Open5gsSGWC(self.testenv, self)
self.sgwu = Open5gsSGWU(self.testenv, self)
self.pcrf.configure(copy.deepcopy(values))
self.upf.configure(copy.deepcopy(values))
self.smf.configure(copy.deepcopy(values))
self.hss.configure(copy.deepcopy(values))
self.mme.configure(copy.deepcopy(values))
self.sgwc.configure(copy.deepcopy(values))
self.sgwu.configure(copy.deepcopy(values))
def gen_priv_addr(self, suffix):
if ':' in self.addr():
raise log.Error('IPv6 not implemented!')
public_suffix = self.addr()[self.addr().rindex('.')+1:]
return '127.0.' + public_suffix + '.' + str(suffix)
########################
# PUBLIC - INTERNAL API
########################
def cleanup(self):
if self.pcrf:
self.pcrf.cleanup()
@ -70,27 +109,21 @@ class Open5gsEPC(epc.EPC):
if self.sgwu:
self.sgwu.cleanup()
def configure(self):
values = super().configure(['open5gsepc'])
db_host = values['epc']['db_host']
db_uri = 'mongodb://'+db_host+'/open5gs'
config.overlay(values, dict(epc=dict(db_uri=db_uri)))
self.fill_subscribers_mongodb(values['epc']['db_host'], 27017)
self.pcrf = Open5gsPCRF(self.testenv, self)
self.upf = Open5gsUPF(self.testenv, self)
self.smf = Open5gsSMF(self.testenv, self)
self.hss = Open5gsHSS(self.testenv, self)
self.mme = Open5gsMME(self.testenv, self)
self.sgwc = Open5gsSGWC(self.testenv, self)
self.sgwu = Open5gsSGWU(self.testenv, self)
self.pcrf.configure(copy.deepcopy(values))
self.upf.configure(copy.deepcopy(values))
self.smf.configure(copy.deepcopy(values))
self.hss.configure(copy.deepcopy(values))
self.mme.configure(copy.deepcopy(values))
self.sgwc.configure(copy.deepcopy(values))
self.sgwu.configure(copy.deepcopy(values))
def priv_addr_smf(self):
return self.gen_priv_addr(1)
def priv_addr_upf(self):
return self.gen_priv_addr(2)
def priv_addr_sgwc(self):
return self.gen_priv_addr(3)
def priv_addr_sgwu(self):
return self.gen_priv_addr(4)
###################
# PUBLIC (test API included)
###################
def start(self):
self.log('Starting srsepc')
self.run_dir = util.Dir(self.testenv.test().get_run_dir().new_dir(self.name()))

6
src/osmo_gsm_tester/templates/open5gs-mmed.yaml.tmpl
View File

@ -104,8 +104,7 @@ mme:
#
sgwc:
gtpc:
- addr: ${epc.run_addr}
port: 2125
- addr: ${epc.addr_sgwc}
#
# smf:
@ -146,8 +145,7 @@ sgwc:
# apn: volte
smf:
gtpc:
- addr: ${epc.run_addr}
port: 2124
- addr: ${epc.addr_smf}
#
# parameter:

9
src/osmo_gsm_tester/templates/open5gs-sgwcd.yaml.tmpl
View File

@ -52,11 +52,9 @@ logger:
#
sgwc:
gtpc:
- addr: ${epc.run_addr}
port: 2125
- addr: ${epc.addr_sgwc}
pfcp:
- addr: ${epc.run_addr}
port: 8805
- addr: ${epc.addr_sgwc}
#
# sgwu:
@ -112,8 +110,7 @@ sgwc:
#
sgwu:
pfcp:
- addr: ${epc.run_addr}
port: 8806
- addr: ${epc.addr_sgwu}
#
# parameter:

6
src/osmo_gsm_tester/templates/open5gs-sgwud.yaml.tmpl
View File

@ -49,8 +49,7 @@ logger:
#
sgwu:
pfcp:
- addr: ${epc.run_addr}
port: 8806
- addr: ${epc.addr_sgwu}
gtpu:
- addr: ${epc.run_addr}
port: 2152
@ -67,8 +66,7 @@ sgwu:
#
sgwc:
pfcp:
- addr: ${epc.run_addr}
port: 8805
- addr: ${epc.addr_sgwc}
#
# parameter:

15
src/osmo_gsm_tester/templates/open5gs-smfd.yaml.tmpl
View File

@ -20,6 +20,7 @@
#
logger:
file: ${smf.log_filename}
level: debug
#
# smf:
#
@ -310,22 +311,17 @@ smf:
- addr: ${epc.run_addr}
port: 7777
pfcp:
- addr: ${epc.run_addr}
port: 8808
- addr: ${epc.addr_smf}
gtpc:
- addr: ${epc.run_addr}
port: 2124
- addr: ${epc.addr_smf}
gtpu:
- addr: ${epc.run_addr}
port: 2153
subnet:
- addr: 10.45.0.1/16
- addr: 2001:230:cafe::1/48
- addr: ${epc.tun_addr}/16
dns:
- 8.8.8.8
- 8.8.4.4
- 2001:4860:4860::8888
- 2001:4860:4860::8844
mtu: 1400
freeDiameter: ${smf.diameter_filename}
@ -415,8 +411,7 @@ nrf:
#
upf:
pfcp:
- addr: ${epc.run_addr}
port: 8807
- addr: ${epc.addr_upf}
#
# parameter:

10
src/osmo_gsm_tester/templates/open5gs-upfd.yaml.tmpl
View File

@ -20,6 +20,7 @@
#
logger:
file: ${upf.log_filename}
level: debug
#
# upf:
@ -104,14 +105,12 @@ logger:
#
upf:
pfcp:
- addr: ${epc.run_addr}
port: 8807
- addr: ${epc.addr_upf}
gtpu:
- addr: ${epc.run_addr}
port: 2154
subnet:
- addr: 10.45.0.1/16
- addr: 2001:230:cafe::1/48
- addr: ${epc.tun_addr}/16
#
# smf:
@ -125,8 +124,7 @@ upf:
#
smf:
pfcp:
- addr: ${epc.run_addr}
port: 8808
- addr: ${epc.addr_smf}
#
# parameter: