From 55e02bef4f3aeff5e33cddc79f22b93fc671e491 Mon Sep 17 00:00:00 2001
From: Viacheslav Hletenko <v.gletenko@vyos.io>
Date: Tue, 28 May 2024 13:06:51 +0000
Subject: T6411: CGNAT fix sequences for external address ranges
Fix the bug where address external alocation was not rely on sequences
of the external IP addresses (if set)
---
smoketest/scripts/cli/test_cgnat.py | 39 +++++++++++++++++++++++++++++++++++++
1 file changed, 39 insertions(+)
(limited to 'smoketest')
diff --git a/smoketest/scripts/cli/test_cgnat.py b/smoketest/scripts/cli/test_cgnat.py
index c65c58820..02dad3de5 100755
--- a/smoketest/scripts/cli/test_cgnat.py
+++ b/smoketest/scripts/cli/test_cgnat.py
@@ -95,5 +95,44 @@ class TestCGNAT(VyOSUnitTestSHIM.TestCase):
self.verify_nftables(nftables_search, 'ip cgnat', inverse=False, args='-s')
+ def test_cgnat_sequence(self):
+ internal_name = 'earth'
+ external_name = 'milky_way'
+ internal_net = '100.64.0.0/28'
+
+ ext_addr_alpha_proxima = '192.0.2.121/32'
+ ext_addr_beta_cygni = '198.51.100.23/32'
+ ext_addr_gamma_leonis = '203.0.113.102/32'
+
+ ext_seq_beta_cygni = '3'
+ ext_seq_gamma_leonis = '10'
+
+ external_ports = '1024-65535'
+ ports_per_subscriber = '10000'
+ rule = '100'
+
+ nftables_search = [
+ ['100.64.0.0 : 198.51.100.23 . 1024-11023, 100.64.0.1 : 198.51.100.23 . 11024-21023'],
+ ['100.64.0.4 : 198.51.100.23 . 41024-51023, 100.64.0.5 : 198.51.100.23 . 51024-61023'],
+ ['100.64.0.6 : 203.0.113.102 . 1024-11023, 100.64.0.7 : 203.0.113.102 . 11024-21023'],
+ ['100.64.0.8 : 203.0.113.102 . 21024-31023, 100.64.0.9 : 203.0.113.102 . 31024-41023'],
+ ['100.64.0.10 : 203.0.113.102 . 41024-51023, 100.64.0.11 : 203.0.113.102 . 51024-61023'],
+ ['100.64.0.12 : 192.0.2.121 . 1024-11023, 100.64.0.13 : 192.0.2.121 . 11024-21023'],
+ ['100.64.0.14 : 192.0.2.121 . 21024-31023, 100.64.0.15 : 192.0.2.121 . 31024-41023'],
+ ]
+
+ self.cli_set(base_path + ['pool', 'external', external_name, 'external-port-range', external_ports])
+ self.cli_set(base_path + ['pool', 'external', external_name, 'per-user-limit', 'port', ports_per_subscriber])
+ self.cli_set(base_path + ['pool', 'external', external_name, 'range', ext_addr_alpha_proxima])
+ self.cli_set(base_path + ['pool', 'external', external_name, 'range', ext_addr_beta_cygni, 'seq', ext_seq_beta_cygni])
+ self.cli_set(base_path + ['pool', 'external', external_name, 'range', ext_addr_gamma_leonis, 'seq', ext_seq_gamma_leonis])
+ self.cli_set(base_path + ['pool', 'internal', internal_name, 'range', internal_net])
+ self.cli_set(base_path + ['rule', rule, 'source', 'pool', internal_name])
+ self.cli_set(base_path + ['rule', rule, 'translation', 'pool', external_name])
+ self.cli_commit()
+
+ self.verify_nftables(nftables_search, 'ip cgnat', inverse=False, args='-s')
+
+
if __name__ == '__main__':
unittest.main(verbosity=2)
--
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