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packetforge: add option to show spec and mask only

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In some cases with Generic FLow, it is only required to show the pattern
of spec and mask, but no need to add the flow. Therefore, add an option
in packetforge so that users can show spec and mask only.

Type: improvement

Signed-off-by: Ting Xu <ting.xu@intel.com>
Change-Id: I7b3040689eb82d0b58924712ee6fc9cfa0a42fa1
This commit is contained in:
Ting Xu
2023-03-16 01:22:33 +00:00
committed by Dave Wallace
parent 9794326125
commit f34420ff11
4 changed files with 169 additions and 68 deletions
Download Patch File Download Diff File Expand all files Collapse all files

148
extras/packetforge/flow_create.py
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@ -29,66 +29,6 @@ VPP_JSON_DIR_PLUGIN = (
API_FILE_SUFFIX = "*.api.json"
def Main(argv):
file_flag = False
operation = None
try:
opts, args = getopt.getopt(
argv,
"hf:p:a:i:I:",
[
"help=",
"add",
"del",
"file=",
"pattern=",
"actions=",
"interface=",
"flow-index=",
],
)
except getopt.GetoptError:
print(
"flow_create.py --add|del -f <file> -p <pattern> -a <actions> -i <interface> -I <flow-index>"
)
sys.exit()
for opt, arg in opts:
if opt == "-h":
print(
"flow_create.py --add|del -f <file> -p <pattern> -a <actions> -i <interface> -I <flow-index>"
)
sys.exit()
elif opt == "--add":
operation = "add"
elif opt == "--del":
operation = "del"
elif opt in ("-f", "--file"):
actions = ""
json_file = arg
file_flag = True
elif opt in ("-p", "--pattern") and not file_flag:
pattern = arg
elif opt in ("-a", "--actions"):
actions = arg
elif opt in ("-i", "--interface"):
iface = arg
elif opt in ("-I", "--flow-index"):
flow_index = arg
if operation == None:
print("Error: Please choose the operation: add or del")
sys.exit()
if operation == "add":
if not file_flag:
result = packetforge.Forge(pattern, actions, False)
else:
result = packetforge.Forge(json_file, actions, True)
return result, int(iface), operation, None
elif operation == "del":
return None, int(iface), operation, int(flow_index)
def load_json_api_files(suffix=API_FILE_SUFFIX):
jsonfiles = []
json_dir = VPP_JSON_DIR
@ -113,16 +53,91 @@ def connect_vpp(jsonfiles):
return vpp
if __name__ == "__main__":
def Main(argv):
file_flag = False
operation = None
actions = ""
iface = ""
try:
opts, args = getopt.getopt(
argv,
"hf:p:a:i:I:",
[
"help",
"add",
"del",
"show",
"file=",
"pattern=",
"actions=",
"interface=",
"flow-index=",
],
)
except getopt.GetoptError:
print(
"flow_create.py --add|del|show -f <file> -p <pattern> -a <actions> -i <interface> -I <flow-index>"
)
sys.exit()
for opt, arg in opts:
if opt == "-h":
print(
"flow_create.py --add|del|show -f <file> -p <pattern> -a <actions> -i <interface> -I <flow-index>"
)
sys.exit()
elif opt == "--add":
operation = "add"
elif opt == "--del":
operation = "del"
elif opt == "--show":
operation = "show"
elif opt in ("-f", "--file"):
json_file = arg
file_flag = True
elif opt in ("-p", "--pattern") and not file_flag:
pattern = arg
elif opt in ("-a", "--actions"):
actions = arg
elif opt in ("-i", "--interface"):
iface = arg
elif opt in ("-I", "--flow-index"):
flow_index = arg
if operation == None:
print("Error: Please choose the operation: add or del")
sys.exit()
if operation == "show":
if not file_flag:
result = packetforge.Forge(pattern, actions, False, True)
else:
result = packetforge.Forge(json_file, actions, True, True)
return result, None, operation, None, None
# Python API need json definitions to interpret messages
vpp = connect_vpp(load_json_api_files())
print(vpp.api.show_version())
# Parse the arguments
my_flow, iface, operation, del_flow_index = Main(sys.argv[1:])
# set inteface states
vpp.api.sw_interface_set_flags(sw_if_index=iface, flags=1)
vpp.api.sw_interface_set_flags(sw_if_index=int(iface), flags=1)
if operation == "add":
if not file_flag:
result = packetforge.Forge(pattern, actions, False, False)
else:
result = packetforge.Forge(json_file, actions, True, False)
return result, int(iface), operation, None, vpp
elif operation == "del":
return None, int(iface), operation, int(flow_index), vpp
if __name__ == "__main__":
# Parse the arguments
my_flow, iface, operation, del_flow_index, vpp = Main(sys.argv[1:])
# if operation is show, just show spec and mask, then exit
if operation == "show":
print(my_flow)
sys.exit()
if operation == "add":
# add flow
@ -155,3 +170,4 @@ if __name__ == "__main__":
# command example:
# python flow_create.py --add -p "mac()/ipv4(src=1.1.1.1,dst=2.2.2.2)/udp()" -a "redirect-to-queue 3" -i 1
# python flow_create.py --del -i 1 -I 0
# python flow_create.py --show -p "mac()/ipv4(src=1.1.1.1,dst=2.2.2.2)/udp()"