Merge pull request #6905 from gpnaveen/topojson_kernel_version_check

tests: Kernel version check for topojson scripts.

tests/topotests/bgp-basic-functionality-topo1/test_bgp_basic_functionality.py

@@ -76,6 +76,7 @@ from lib.common_config import (
     create_prefix_lists,
     create_route_maps,
     verify_bgp_community,
+    required_linux_kernel_version
 )
 from lib.topolog import logger
 from lib.bgp import (
@@ -137,6 +138,11 @@ def setup_module(mod):
     * `mod`: module name
     """
 
+    # Required linux kernel version for this suite to run.
+    result = required_linux_kernel_version('4.15')
+    if result is not True:
+        pytest.skip("Kernel requirements are not met")
+
     testsuite_run_time = time.asctime(time.localtime(time.time()))
     logger.info("Testsuite start time: {}".format(testsuite_run_time))
     logger.info("=" * 40)

tests/topotests/bgp-ecmp-topo2/test_ebgp_ecmp_topo2.py

@@ -61,6 +61,7 @@ from lib.common_config import (
     check_address_types,
     interface_status,
     reset_config_on_routers,
+    required_linux_kernel_version
 )
 from lib.topolog import logger
 from lib.bgp import verify_bgp_convergence, create_router_bgp, clear_bgp
@@ -108,6 +109,11 @@ def setup_module(mod):
     global NEXT_HOPS, INTF_LIST_R3, INTF_LIST_R2, TEST_STATIC
     global ADDR_TYPES
 
+    # Required linux kernel version for this suite to run.
+    result = required_linux_kernel_version('4.15')
+    if result is not True:
+        pytest.skip("Kernel requirements are not met")
+
     testsuite_run_time = time.asctime(time.localtime(time.time()))
     logger.info("Testsuite start time: {}".format(testsuite_run_time))
     logger.info("=" * 40)

tests/topotests/bgp-ecmp-topo2/test_ibgp_ecmp_topo2.py

@@ -61,6 +61,7 @@ from lib.common_config import (
     check_address_types,
     interface_status,
     reset_config_on_routers,
+    required_linux_kernel_version
 )
 from lib.topolog import logger
 from lib.bgp import verify_bgp_convergence, create_router_bgp, clear_bgp
@@ -108,6 +109,11 @@ def setup_module(mod):
     global NEXT_HOPS, INTF_LIST_R3, INTF_LIST_R2, TEST_STATIC
     global ADDR_TYPES
 
+    # Required linux kernel version for this suite to run.
+    result = required_linux_kernel_version('4.15')
+    if result is not True:
+        pytest.skip("Kernel requirements are not met")
+
     testsuite_run_time = time.asctime(time.localtime(time.time()))
     logger.info("Testsuite start time: {}".format(testsuite_run_time))
     logger.info("=" * 40)

tests/topotests/bgp_as_allow_in/test_bgp_as_allow_in.py

@@ -65,6 +65,7 @@ from lib.common_config import (
     create_route_maps,
     check_address_types,
     step,
+    required_linux_kernel_version
 )
 from lib.topolog import logger
 from lib.bgp import (
@@ -112,6 +113,11 @@ def setup_module(mod):
     * `mod`: module name
     """
 
+    # Required linux kernel version for this suite to run.
+    result = required_linux_kernel_version('4.15')
+    if result is not True:
+        pytest.skip("Kernel requirements are not met")
+
     testsuite_run_time = time.asctime(time.localtime(time.time()))
     logger.info("Testsuite start time: {}".format(testsuite_run_time))
     logger.info("=" * 40)

tests/topotests/bgp_communities_topo1/test_bgp_communities.py

@@ -54,6 +54,7 @@ from lib.common_config import (
     create_route_maps,
     create_prefix_lists,
     create_route_maps,
+    required_linux_kernel_version
 )
 from lib.topolog import logger
 from lib.bgp import (
@@ -102,6 +103,11 @@ def setup_module(mod):
     * `mod`: module name
     """
 
+    # Required linux kernel version for this suite to run.
+    result = required_linux_kernel_version('4.15')
+    if result is not True:
+        pytest.skip("Kernel requirements are not met")
+
     testsuite_run_time = time.asctime(time.localtime(time.time()))
     logger.info("Testsuite start time: {}".format(testsuite_run_time))
     logger.info("=" * 40)

tests/topotests/bgp_gr_functionality_topo1/test_bgp_gr_functionality_topo1.py

@@ -135,6 +135,7 @@ from lib.common_config import (
     kill_mininet_routers_process,
     get_frr_ipv6_linklocal,
     create_route_maps,
+    required_linux_kernel_version
 )
 
 # Reading the data from JSON File for topology and configuration creation
@@ -186,6 +187,11 @@ def setup_module(mod):
 
     global ADDR_TYPES
 
+    # Required linux kernel version for this suite to run.
+    result = required_linux_kernel_version('4.15')
+    if result is not True:
+        pytest.skip("Kernel requirements are not met")
+
     testsuite_run_time = time.asctime(time.localtime(time.time()))
     logger.info("Testsuite start time: {}".format(testsuite_run_time))
     logger.info("=" * 40)

tests/topotests/bgp_gr_functionality_topo2/test_bgp_gr_functionality_topo2.py

@@ -135,6 +135,7 @@ from lib.common_config import (
     kill_mininet_routers_process,
     get_frr_ipv6_linklocal,
     create_route_maps,
+    required_linux_kernel_version
 )
 
 # Reading the data from JSON File for topology and configuration creation
@@ -183,6 +184,11 @@ def setup_module(mod):
     * `mod`: module name
     """
 
+    # Required linux kernel version for this suite to run.
+    result = required_linux_kernel_version('4.15')
+    if result is not True:
+        pytest.skip("Kernel requirements are not met")
+
     global ADDR_TYPES
 
     testsuite_run_time = time.asctime(time.localtime(time.time()))

tests/topotests/bgp_large_community/test_bgp_large_community_topo_1.py

@@ -67,6 +67,7 @@ from lib.common_config import (
     verify_bgp_community,
     step,
     check_address_types,
+    required_linux_kernel_version
 )
 from lib.topolog import logger
 from lib.bgp import verify_bgp_convergence, create_router_bgp, clear_bgp_and_verify
@@ -142,6 +143,11 @@ def setup_module(mod):
 
     * `mod`: module name
     """
+    # Required linux kernel version for this suite to run.
+    result = required_linux_kernel_version('4.15')
+    if result is not True:
+        pytest.skip("Kernel requirements are not met")
+
     global ADDR_TYPES
     testsuite_run_time = time.asctime(time.localtime(time.time()))
     logger.info("Testsuite start time: {}".format(testsuite_run_time))

tests/topotests/bgp_large_community/test_bgp_large_community_topo_2.py

@@ -91,6 +91,7 @@ from lib.common_config import (
     verify_route_maps,
     create_static_routes,
     check_address_types,
+    required_linux_kernel_version
 )
 from lib.topolog import logger
 from lib.bgp import verify_bgp_convergence, create_router_bgp, clear_bgp_and_verify
@@ -133,6 +134,11 @@ def setup_module(mod):
     * `mod`: module name
     """
 
+    # Required linux kernel version for this suite to run.
+    result = required_linux_kernel_version('4.15')
+    if result is not True:
+        pytest.skip("Kernel requirements are not met")
+
     testsuite_run_time = time.asctime(time.localtime(time.time()))
     logger.info("Testsuite start time: {}".format(testsuite_run_time))
     logger.info("=" * 40)

tests/topotests/bgp_multi_vrf_topo1/test_bgp_multi_vrf_topo1.py

@@ -132,6 +132,7 @@ from lib.common_config import (
     create_bgp_community_lists,
     check_router_status,
     apply_raw_config,
+    required_linux_kernel_version
 )
 
 from lib.topolog import logger
@@ -209,6 +210,10 @@ def setup_module(mod):
 
     * `mod`: module name
     """
+    # Required linux kernel version for this suite to run.
+    result = required_linux_kernel_version('4.15')
+    if result is not True:
+        pytest.skip("Kernel requirements are not met")
 
     testsuite_run_time = time.asctime(time.localtime(time.time()))
     logger.info("Testsuite start time: {}".format(testsuite_run_time))

tests/topotests/bgp_multi_vrf_topo2/test_bgp_multi_vrf_topo2.py

@@ -78,6 +78,7 @@ from lib.common_config import (
     get_frr_ipv6_linklocal,
     check_router_status,
     apply_raw_config,
+    required_linux_kernel_version
 )
 
 from lib.topolog import logger
@@ -141,6 +142,10 @@ def setup_module(mod):
 
     * `mod`: module name
     """
+    # Required linux kernel version for this suite to run.
+    result = required_linux_kernel_version('4.15')
+    if result is not True:
+        pytest.skip("Kernel requirements are not met")
 
     testsuite_run_time = time.asctime(time.localtime(time.time()))
     logger.info("Testsuite start time: {}".format(testsuite_run_time))

tests/topotests/lib/common_config.py

@@ -36,6 +36,8 @@ import ConfigParser
 import traceback
 import socket
 import ipaddress
+import platform
+
 
 if sys.version_info[0] > 2:
     import io
@@ -46,7 +48,7 @@ else:
 
 from lib.topolog import logger, logger_config
 from lib.topogen import TopoRouter, get_topogen
-from lib.topotest import interface_set_status
+from lib.topotest import interface_set_status, version_cmp
 
 FRRCFG_FILE = "frr_json.conf"
 FRRCFG_BKUP_FILE = "frr_json_initial.conf"
@@ -3973,3 +3975,30 @@ def verify_vrf_vni(tgen, input_dict):
 
     logger.debug("Exiting lib API: {}".format(sys._getframe().f_code.co_name))
     return False
+
+
+def required_linux_kernel_version(required_version):
+    """
+    This API is used to check linux version compatibility of the test suite.
+    If version mentioned in required_version is higher than the linux kernel
+    of the system, test suite will be skipped. This API returns true or errormsg.
+
+    Parameters
+    ----------
+    * `required_version` : Kernel version required for the suites to run.
+
+    Usage
+    -----
+    result = linux_kernel_version_lowerthan('4.15')
+
+    Returns
+    -------
+    errormsg(str) or True
+    """
+    system_kernel = platform.release()
+    if version_cmp(system_kernel, required_version) < 0:
+        error_msg = ('These tests will not run on kernel "{}", '
+            'they require kernel >= {})'.format(system_kernel,
+                required_version ))
+        return error_msg
+    return True