mirror of
https://github.com/openvswitch/ovs
synced 2025-08-22 01:51:26 +00:00
build-aux/extract-ofp-actions: Fix flake8 and syntax errors.
A few general style issues like extra spacing and lines being too long.
Also, unused variables 'error_types' and 'comments'. And a few invalid
escape sequences, which are not actual escape sequences, but cause
actual syntax warnings starting python 3.12 and will eventually become
syntax errors [1]:
extract-ofp-actions:122: SyntaxWarning: invalid escape sequence '\['
comment = re.sub('\[[^]]*\]', '', comment)
extract-ofp-actions:125: SyntaxWarning: invalid escape sequence '\s'
m = re.match('([^:]+):\s+(.*)$', comment)
These are fixed by converting to raw strings.
[1] https://docs.python.org/3/reference/lexical_analysis.html#escape-sequences
Acked-by: Eelco Chaudron <echaudro@redhat.com>
Reviewed-By: Ihar Hrachyshka <ihar@redhat.com>
Signed-off-by: Ilya Maximets <i.maximets@ovn.org>
This commit is contained in:
Ilya Maximets
parent
723cd4c9be
commit
51fb992904
@ -17,27 +17,30 @@ version_map = {"1.0": 0x01,
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version_reverse_map = dict((v, k) for (k, v) in version_map.items())
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# Map from vendor name to the length of the action header.
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vendor_map = {"OF": (0x00000000, 4),
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vendor_map = {"OF": (0x00000000, 4),
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"ONF": (0x4f4e4600, 10),
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"NX": (0x00002320, 10)}
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# Basic types used in action arguments.
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types = {}
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types['uint8_t'] = {"size": 1, "align": 1, "ntoh": None, "hton": None}
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types['ovs_be16'] = {"size": 2, "align": 2, "ntoh": "ntohs", "hton": "htons"}
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types['ovs_be32'] = {"size": 4, "align": 4, "ntoh": "ntohl", "hton": "htonl"}
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types['ovs_be64'] = {"size": 8, "align": 8, "ntoh": "ntohll", "hton": "htonll"}
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types['uint16_t'] = {"size": 2, "align": 2, "ntoh": None, "hton": None}
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types['uint32_t'] = {"size": 4, "align": 4, "ntoh": None, "hton": None}
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types['uint64_t'] = {"size": 8, "align": 8, "ntoh": None, "hton": None}
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types = {
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"uint8_t" : {"size": 1, "align": 1, "ntoh": None, "hton": None},
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"ovs_be16": {"size": 2, "align": 2, "ntoh": "ntohs", "hton": "htons"},
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"ovs_be32": {"size": 4, "align": 4, "ntoh": "ntohl", "hton": "htonl"},
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"ovs_be64": {"size": 8, "align": 8, "ntoh": "ntohll", "hton": "htonll"},
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"uint16_t": {"size": 2, "align": 2, "ntoh": None, "hton": None},
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"uint32_t": {"size": 4, "align": 4, "ntoh": None, "hton": None},
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"uint64_t": {"size": 8, "align": 8, "ntoh": None, "hton": None},
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}
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line = ""
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n_errors = 0
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arg_structs = set()
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def round_up(x, y):
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return int((x + (y - 1)) / y) * y
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def open_file(fn):
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global file_name
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global input_file
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@ -46,6 +49,7 @@ def open_file(fn):
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input_file = open(file_name)
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line_number = 0
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def get_line():
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global input_file
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global line
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@ -56,16 +60,18 @@ def get_line():
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fatal("unexpected end of input")
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return line
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n_errors = 0
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def error(msg):
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global n_errors
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sys.stderr.write("%s:%d: %s\n" % (file_name, line_number, msg))
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n_errors += 1
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def fatal(msg):
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error(msg)
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sys.exit(1)
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def usage():
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argv0 = os.path.basename(sys.argv[0])
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print('''\
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@ -84,10 +90,8 @@ Commands:
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''' % {"argv0": argv0})
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sys.exit(0)
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def extract_ofp_actions(fn, definitions):
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error_types = {}
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comments = []
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def extract_ofp_actions(fn, definitions):
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names = []
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domain = {}
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for code, size in vendor_map.values():
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@ -100,14 +104,14 @@ def extract_ofp_actions(fn, definitions):
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while True:
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get_line()
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if re.match('enum ofp_raw_action_type {', line):
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if re.match(r'enum ofp_raw_action_type {', line):
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break
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while True:
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get_line()
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if line.startswith('/*') or not line or line.isspace():
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continue
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elif re.match('}', line):
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elif re.match(r'}', line):
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break
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if not line.lstrip().startswith('/*'):
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@ -119,10 +123,10 @@ def extract_ofp_actions(fn, definitions):
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if line.startswith('/*') or not line or line.isspace():
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fatal("unexpected syntax within action")
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comment += ' %s' % line.lstrip('* \t').rstrip(' \t\r\n')
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comment = re.sub('\[[^]]*\]', '', comment)
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comment = re.sub(r'\[[^]]*\]', '', comment)
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comment = comment[:-2].rstrip()
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m = re.match('([^:]+):\s+(.*)$', comment)
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m = re.match(r'([^:]+):\s+(.*)$', comment)
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if not m:
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fatal("unexpected syntax between actions")
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@ -147,7 +151,9 @@ def extract_ofp_actions(fn, definitions):
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names.append(enum)
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for dst in dsts.split(', '):
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m = re.match(r'([A-Z]+)([0-9.]+)(\+|-[0-9.]+)?(?:\((\d+)\))(?: is deprecated \(([^)]+)\))?$', dst)
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m = re.match(
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r'([A-Z]+)([0-9.]+)(\+|-[0-9.]+)?(?:\((\d+)\))(?:'
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r' is deprecated \(([^)]+)\))?$', dst)
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if not m:
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fatal("%r: syntax error in destination" % dst)
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vendor_name = m.group(1)
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@ -220,18 +226,18 @@ def extract_ofp_actions(fn, definitions):
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else:
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max_length = min_length
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info = {"enum": enum, # 0
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"deprecation": deprecation, # 1
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"file_name": file_name, # 2
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"line_number": line_number, # 3
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"min_length": min_length, # 4
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"max_length": max_length, # 5
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"arg_ofs": arg_ofs, # 6
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"arg_len": arg_len, # 7
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"base_argtype": base_argtype, # 8
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"arg_vl_mff_map": arg_vl_mff_map, # 9
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"version": version, # 10
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"type": type_} # 11
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info = {"enum": enum, # 0
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"deprecation": deprecation, # 1
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"file_name": file_name, # 2
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"line_number": line_number, # 3
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"min_length": min_length, # 4
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"max_length": max_length, # 5
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"arg_ofs": arg_ofs, # 6
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"arg_len": arg_len, # 7
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"base_argtype": base_argtype, # 8
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"arg_vl_mff_map": arg_vl_mff_map, # 9
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"version": version, # 10
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"type": type_} # 11
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domain[vendor][type_][version] = info
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enums.setdefault(enum, [])
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@ -247,9 +253,13 @@ def extract_ofp_actions(fn, definitions):
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""")
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if definitions:
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print("/* Verify that structs used as actions are reasonable sizes. */")
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print(
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"/* Verify that structs used as actions are reasonable sizes. */"
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)
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for s in sorted(arg_structs):
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print("BUILD_ASSERT_DECL(sizeof(%s) %% OFP_ACTION_ALIGN == 0);" % s)
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print(
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"BUILD_ASSERT_DECL(sizeof(%s) %% OFP_ACTION_ALIGN == 0);" % s
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)
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print("\nstatic struct ofpact_raw_instance all_raw_instances[] = {")
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for vendor in domain:
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@ -265,9 +275,11 @@ def extract_ofp_actions(fn, definitions):
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print(" %s," % d["max_length"])
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print(" %s," % d["arg_ofs"])
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print(" %s," % d["arg_len"])
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print(" \"%s\"," % re.sub('_RAW[0-9]*', '', d["enum"], 1))
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print(" \"%s\","
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% re.sub(r'_RAW[0-9]*', '', d["enum"], 1))
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if d["deprecation"]:
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print(" \"%s\"," % re.sub(r'(["\\])', r'\\\1', d["deprecation"]))
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print(" \"%s\","
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% re.sub(r'(["\\])', r'\\\1', d["deprecation"]))
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else:
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print(" NULL,")
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print(" },")
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@ -286,10 +298,11 @@ def extract_ofp_actions(fn, definitions):
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decl = "static inline "
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if base_argtype.startswith('struct'):
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decl += "%s *" %base_argtype
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decl += "%s *" % base_argtype
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else:
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decl += "void"
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decl += "\nput_%s(struct ofpbuf *openflow" % versions[0]["enum"].replace('_RAW', '', 1)
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decl += "\nput_%s(struct ofpbuf *openflow" \
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% versions[0]["enum"].replace('_RAW', '', 1)
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if need_ofp_version:
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decl += ", enum ofp_version version"
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if base_argtype != 'void' and not base_argtype.startswith('struct'):
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@ -348,9 +361,13 @@ ofpact_decode(const struct ofp_action_header *a, enum ofp_raw_action_type raw,
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else:
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arg = "arg"
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if arg_vl_mff_map:
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print(" return decode_%s(%s, version, vl_mff_map, tlv_bitmap, out);" % (enum, arg))
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print(
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" return decode_%s(%s," % (enum, arg),
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"version, vl_mff_map, tlv_bitmap, out);"
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)
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else:
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print(" return decode_%s(%s, version, out);" % (enum, arg))
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print(" return decode_%s(%s, version, out);"
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% (enum, arg))
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print("")
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print("""\
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default:
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@ -366,7 +383,8 @@ ofpact_decode(const struct ofp_action_header *a, enum ofp_raw_action_type raw,
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arg_vl_mff_map = versions[0]["arg_vl_mff_map"]
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if base_argtype != 'void':
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if base_argtype.startswith('struct'):
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prototype += "const %s *, enum ofp_version, " % base_argtype
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prototype += "const %s *, " % base_argtype
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prototype += "enum ofp_version, "
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else:
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prototype += "%s, enum ofp_version, " % base_argtype
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if arg_vl_mff_map:
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@ -378,13 +396,15 @@ ofpact_decode(const struct ofp_action_header *a, enum ofp_raw_action_type raw,
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static enum ofperr ofpact_decode(const struct ofp_action_header *,
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enum ofp_raw_action_type raw,
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enum ofp_version version,
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uint64_t arg, const struct vl_mff_map *vl_mff_map,
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uint64_t arg,
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const struct vl_mff_map *vl_mff_map,
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uint64_t *tlv_bitmap, struct ofpbuf *out);
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""")
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## ------------ ##
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## Main Program ##
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## ------------ ##
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# ------------ #
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# Main Program #
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# ------------ #
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if __name__ == '__main__':
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argv0 = sys.argv[0]
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