1926 lines
54 KiB
Python
1926 lines
54 KiB
Python
|
#!/usr/bin/env python
|
||
|
|
#
|
||
|
|
# Copyright (c) 2005-2007 Niels Provos <provos@citi.umich.edu>
|
||
|
|
# Copyright (c) 2007-2012 Niels Provos and Nick Mathewson
|
||
|
|
# All rights reserved.
|
||
|
|
#
|
||
|
|
# Generates marshaling code based on libevent.
|
||
|
|
|
||
|
|
# pylint: disable=too-many-lines
|
||
|
|
# pylint: disable=too-many-branches
|
||
|
|
# pylint: disable=too-many-public-methods
|
||
|
|
# pylint: disable=too-many-statements
|
||
|
|
# pylint: disable=global-statement
|
||
|
|
|
||
|
|
# TODO:
|
||
|
|
# 1) propagate the arguments/options parsed by argparse down to the
|
||
|
|
# instantiated factory objects.
|
||
|
|
# 2) move the globals into a class that manages execution, including the
|
||
|
|
# progress outputs that go to stderr at the moment.
|
||
|
|
# 3) emit other languages.
|
||
|
|
|
||
|
|
import argparse
|
||
|
|
import re
|
||
|
|
import sys
|
||
|
|
|
||
|
|
_NAME = "event_rpcgen.py"
|
||
|
|
_VERSION = "0.1"
|
||
|
|
|
||
|
|
# Globals
|
||
|
|
LINE_COUNT = 0
|
||
|
|
|
||
|
|
CPPCOMMENT_RE = re.compile(r"\/\/.*$")
|
||
|
|
NONIDENT_RE = re.compile(r"\W")
|
||
|
|
PREPROCESSOR_DEF_RE = re.compile(r"^#define")
|
||
|
|
STRUCT_REF_RE = re.compile(r"^struct\[(?P<name>[a-zA-Z_][a-zA-Z0-9_]*)\]$")
|
||
|
|
STRUCT_DEF_RE = re.compile(r"^struct +[a-zA-Z_][a-zA-Z0-9_]* *{$")
|
||
|
|
WHITESPACE_RE = re.compile(r"\s+")
|
||
|
|
|
||
|
|
HEADER_DIRECT = []
|
||
|
|
CPP_DIRECT = []
|
||
|
|
|
||
|
|
QUIETLY = False
|
||
|
|
|
||
|
|
|
||
|
|
def declare(s):
|
||
|
|
if not QUIETLY:
|
||
|
|
print(s)
|
||
|
|
|
||
|
|
|
||
|
|
def TranslateList(mylist, mydict):
|
||
|
|
return [x % mydict for x in mylist]
|
||
|
|
|
||
|
|
|
||
|
|
class RpcGenError(Exception):
|
||
|
|
"""An Exception class for parse errors."""
|
||
|
|
|
||
|
|
def __init__(self, why): # pylint: disable=super-init-not-called
|
||
|
|
self.why = why
|
||
|
|
|
||
|
|
def __str__(self):
|
||
|
|
return str(self.why)
|
||
|
|
|
||
|
|
|
||
|
|
# Holds everything that makes a struct
|
||
|
|
class Struct(object):
|
||
|
|
def __init__(self, name):
|
||
|
|
self._name = name
|
||
|
|
self._entries = []
|
||
|
|
self._tags = {}
|
||
|
|
declare(" Created struct: %s" % name)
|
||
|
|
|
||
|
|
def AddEntry(self, entry):
|
||
|
|
if entry.Tag() in self._tags:
|
||
|
|
raise RpcGenError(
|
||
|
|
'Entry "%s" duplicates tag number %d from "%s" '
|
||
|
|
"around line %d"
|
||
|
|
% (entry.Name(), entry.Tag(), self._tags[entry.Tag()], LINE_COUNT)
|
||
|
|
)
|
||
|
|
self._entries.append(entry)
|
||
|
|
self._tags[entry.Tag()] = entry.Name()
|
||
|
|
declare(" Added entry: %s" % entry.Name())
|
||
|
|
|
||
|
|
def Name(self):
|
||
|
|
return self._name
|
||
|
|
|
||
|
|
def EntryTagName(self, entry):
|
||
|
|
"""Creates the name inside an enumeration for distinguishing data
|
||
|
|
types."""
|
||
|
|
name = "%s_%s" % (self._name, entry.Name())
|
||
|
|
return name.upper()
|
||
|
|
|
||
|
|
@staticmethod
|
||
|
|
def PrintIndented(filep, ident, code):
|
||
|
|
"""Takes an array, add indentation to each entry and prints it."""
|
||
|
|
for entry in code:
|
||
|
|
filep.write("%s%s\n" % (ident, entry))
|
||
|
|
|
||
|
|
|
||
|
|
class StructCCode(Struct):
|
||
|
|
""" Knows how to generate C code for a struct """
|
||
|
|
|
||
|
|
def __init__(self, name):
|
||
|
|
Struct.__init__(self, name)
|
||
|
|
|
||
|
|
def PrintTags(self, filep):
|
||
|
|
"""Prints the tag definitions for a structure."""
|
||
|
|
filep.write("/* Tag definition for %s */\n" % self._name)
|
||
|
|
filep.write("enum %s_ {\n" % self._name.lower())
|
||
|
|
for entry in self._entries:
|
||
|
|
filep.write(" %s=%d,\n" % (self.EntryTagName(entry), entry.Tag()))
|
||
|
|
filep.write(" %s_MAX_TAGS\n" % (self._name.upper()))
|
||
|
|
filep.write("};\n\n")
|
||
|
|
|
||
|
|
def PrintForwardDeclaration(self, filep):
|
||
|
|
filep.write("struct %s;\n" % self._name)
|
||
|
|
|
||
|
|
def PrintDeclaration(self, filep):
|
||
|
|
filep.write("/* Structure declaration for %s */\n" % self._name)
|
||
|
|
filep.write("struct %s_access_ {\n" % self._name)
|
||
|
|
for entry in self._entries:
|
||
|
|
dcl = entry.AssignDeclaration("(*%s_assign)" % entry.Name())
|
||
|
|
dcl.extend(entry.GetDeclaration("(*%s_get)" % entry.Name()))
|
||
|
|
if entry.Array():
|
||
|
|
dcl.extend(entry.AddDeclaration("(*%s_add)" % entry.Name()))
|
||
|
|
self.PrintIndented(filep, " ", dcl)
|
||
|
|
filep.write("};\n\n")
|
||
|
|
|
||
|
|
filep.write("struct %s {\n" % self._name)
|
||
|
|
filep.write(" struct %s_access_ *base;\n\n" % self._name)
|
||
|
|
for entry in self._entries:
|
||
|
|
dcl = entry.Declaration()
|
||
|
|
self.PrintIndented(filep, " ", dcl)
|
||
|
|
filep.write("\n")
|
||
|
|
for entry in self._entries:
|
||
|
|
filep.write(" ev_uint8_t %s_set;\n" % entry.Name())
|
||
|
|
filep.write("};\n\n")
|
||
|
|
|
||
|
|
filep.write(
|
||
|
|
"""struct %(name)s *%(name)s_new(void);
|
||
|
|
struct %(name)s *%(name)s_new_with_arg(void *);
|
||
|
|
void %(name)s_free(struct %(name)s *);
|
||
|
|
void %(name)s_clear(struct %(name)s *);
|
||
|
|
void %(name)s_marshal(struct evbuffer *, const struct %(name)s *);
|
||
|
|
int %(name)s_unmarshal(struct %(name)s *, struct evbuffer *);
|
||
|
|
int %(name)s_complete(struct %(name)s *);
|
||
|
|
void evtag_marshal_%(name)s(struct evbuffer *, ev_uint32_t,
|
||
|
|
const struct %(name)s *);
|
||
|
|
int evtag_unmarshal_%(name)s(struct evbuffer *, ev_uint32_t,
|
||
|
|
struct %(name)s *);\n"""
|
||
|
|
% {"name": self._name}
|
||
|
|
)
|
||
|
|
|
||
|
|
# Write a setting function of every variable
|
||
|
|
for entry in self._entries:
|
||
|
|
self.PrintIndented(
|
||
|
|
filep, "", entry.AssignDeclaration(entry.AssignFuncName())
|
||
|
|
)
|
||
|
|
self.PrintIndented(filep, "", entry.GetDeclaration(entry.GetFuncName()))
|
||
|
|
if entry.Array():
|
||
|
|
self.PrintIndented(filep, "", entry.AddDeclaration(entry.AddFuncName()))
|
||
|
|
|
||
|
|
filep.write("/* --- %s done --- */\n\n" % self._name)
|
||
|
|
|
||
|
|
def PrintCode(self, filep):
|
||
|
|
filep.write(
|
||
|
|
"""/*
|
||
|
|
* Implementation of %s
|
||
|
|
*/
|
||
|
|
"""
|
||
|
|
% (self._name)
|
||
|
|
)
|
||
|
|
|
||
|
|
filep.write(
|
||
|
|
"""
|
||
|
|
static struct %(name)s_access_ %(name)s_base__ = {
|
||
|
|
"""
|
||
|
|
% {"name": self._name}
|
||
|
|
)
|
||
|
|
for entry in self._entries:
|
||
|
|
self.PrintIndented(filep, " ", entry.CodeBase())
|
||
|
|
filep.write("};\n\n")
|
||
|
|
|
||
|
|
# Creation
|
||
|
|
filep.write(
|
||
|
|
"""struct %(name)s *
|
||
|
|
%(name)s_new(void)
|
||
|
|
{
|
||
|
|
return %(name)s_new_with_arg(NULL);
|
||
|
|
}
|
||
|
|
|
||
|
|
struct %(name)s *
|
||
|
|
%(name)s_new_with_arg(void *unused)
|
||
|
|
{
|
||
|
|
struct %(name)s *tmp;
|
||
|
|
if ((tmp = malloc(sizeof(struct %(name)s))) == NULL) {
|
||
|
|
event_warn("%%s: malloc", __func__);
|
||
|
|
return (NULL);
|
||
|
|
}
|
||
|
|
tmp->base = &%(name)s_base__;
|
||
|
|
|
||
|
|
"""
|
||
|
|
% {"name": self._name}
|
||
|
|
)
|
||
|
|
|
||
|
|
for entry in self._entries:
|
||
|
|
self.PrintIndented(filep, " ", entry.CodeInitialize("tmp"))
|
||
|
|
filep.write(" tmp->%s_set = 0;\n\n" % entry.Name())
|
||
|
|
|
||
|
|
filep.write(
|
||
|
|
""" return (tmp);
|
||
|
|
}
|
||
|
|
|
||
|
|
"""
|
||
|
|
)
|
||
|
|
|
||
|
|
# Adding
|
||
|
|
for entry in self._entries:
|
||
|
|
if entry.Array():
|
||
|
|
self.PrintIndented(filep, "", entry.CodeAdd())
|
||
|
|
filep.write("\n")
|
||
|
|
|
||
|
|
# Assigning
|
||
|
|
for entry in self._entries:
|
||
|
|
self.PrintIndented(filep, "", entry.CodeAssign())
|
||
|
|
filep.write("\n")
|
||
|
|
|
||
|
|
# Getting
|
||
|
|
for entry in self._entries:
|
||
|
|
self.PrintIndented(filep, "", entry.CodeGet())
|
||
|
|
filep.write("\n")
|
||
|
|
|
||
|
|
# Clearing
|
||
|
|
filep.write(
|
||
|
|
"""void
|
||
|
|
%(name)s_clear(struct %(name)s *tmp)
|
||
|
|
{
|
||
|
|
"""
|
||
|
|
% {"name": self._name}
|
||
|
|
)
|
||
|
|
for entry in self._entries:
|
||
|
|
self.PrintIndented(filep, " ", entry.CodeClear("tmp"))
|
||
|
|
|
||
|
|
filep.write("}\n\n")
|
||
|
|
|
||
|
|
# Freeing
|
||
|
|
filep.write(
|
||
|
|
"""void
|
||
|
|
%(name)s_free(struct %(name)s *tmp)
|
||
|
|
{
|
||
|
|
"""
|
||
|
|
% {"name": self._name}
|
||
|
|
)
|
||
|
|
|
||
|
|
for entry in self._entries:
|
||
|
|
self.PrintIndented(filep, " ", entry.CodeFree("tmp"))
|
||
|
|
|
||
|
|
filep.write(
|
||
|
|
""" free(tmp);
|
||
|
|
}
|
||
|
|
|
||
|
|
"""
|
||
|
|
)
|
||
|
|
|
||
|
|
# Marshaling
|
||
|
|
filep.write(
|
||
|
|
"""void
|
||
|
|
%(name)s_marshal(struct evbuffer *evbuf, const struct %(name)s *tmp) {
|
||
|
|
"""
|
||
|
|
% {"name": self._name}
|
||
|
|
)
|
||
|
|
for entry in self._entries:
|
||
|
|
indent = " "
|
||
|
|
# Optional entries do not have to be set
|
||
|
|
if entry.Optional():
|
||
|
|
indent += " "
|
||
|
|
filep.write(" if (tmp->%s_set) {\n" % entry.Name())
|
||
|
|
self.PrintIndented(
|
||
|
|
filep,
|
||
|
|
indent,
|
||
|
|
entry.CodeMarshal(
|
||
|
|
"evbuf",
|
||
|
|
self.EntryTagName(entry),
|
||
|
|
entry.GetVarName("tmp"),
|
||
|
|
entry.GetVarLen("tmp"),
|
||
|
|
),
|
||
|
|
)
|
||
|
|
if entry.Optional():
|
||
|
|
filep.write(" }\n")
|
||
|
|
|
||
|
|
filep.write("}\n\n")
|
||
|
|
|
||
|
|
# Unmarshaling
|
||
|
|
filep.write(
|
||
|
|
"""int
|
||
|
|
%(name)s_unmarshal(struct %(name)s *tmp, struct evbuffer *evbuf)
|
||
|
|
{
|
||
|
|
ev_uint32_t tag;
|
||
|
|
while (evbuffer_get_length(evbuf) > 0) {
|
||
|
|
if (evtag_peek(evbuf, &tag) == -1)
|
||
|
|
return (-1);
|
||
|
|
switch (tag) {
|
||
|
|
|
||
|
|
"""
|
||
|
|
% {"name": self._name}
|
||
|
|
)
|
||
|
|
for entry in self._entries:
|
||
|
|
filep.write(" case %s:\n" % (self.EntryTagName(entry)))
|
||
|
|
if not entry.Array():
|
||
|
|
filep.write(
|
||
|
|
""" if (tmp->%s_set)
|
||
|
|
return (-1);
|
||
|
|
"""
|
||
|
|
% (entry.Name())
|
||
|
|
)
|
||
|
|
|
||
|
|
self.PrintIndented(
|
||
|
|
filep,
|
||
|
|
" ",
|
||
|
|
entry.CodeUnmarshal(
|
||
|
|
"evbuf",
|
||
|
|
self.EntryTagName(entry),
|
||
|
|
entry.GetVarName("tmp"),
|
||
|
|
entry.GetVarLen("tmp"),
|
||
|
|
),
|
||
|
|
)
|
||
|
|
|
||
|
|
filep.write(
|
||
|
|
""" tmp->%s_set = 1;
|
||
|
|
break;
|
||
|
|
"""
|
||
|
|
% (entry.Name())
|
||
|
|
)
|
||
|
|
filep.write(
|
||
|
|
""" default:
|
||
|
|
return -1;
|
||
|
|
}
|
||
|
|
}
|
||
|
|
|
||
|
|
"""
|
||
|
|
)
|
||
|
|
# Check if it was decoded completely
|
||
|
|
filep.write(
|
||
|
|
""" if (%(name)s_complete(tmp) == -1)
|
||
|
|
return (-1);
|
||
|
|
return (0);
|
||
|
|
}
|
||
|
|
"""
|
||
|
|
% {"name": self._name}
|
||
|
|
)
|
||
|
|
|
||
|
|
# Checking if a structure has all the required data
|
||
|
|
filep.write(
|
||
|
|
"""
|
||
|
|
int
|
||
|
|
%(name)s_complete(struct %(name)s *msg)
|
||
|
|
{
|
||
|
|
"""
|
||
|
|
% {"name": self._name}
|
||
|
|
)
|
||
|
|
for entry in self._entries:
|
||
|
|
if not entry.Optional():
|
||
|
|
code = [
|
||
|
|
"""if (!msg->%(name)s_set)
|
||
|
|
return (-1);"""
|
||
|
|
]
|
||
|
|
code = TranslateList(code, entry.GetTranslation())
|
||
|
|
self.PrintIndented(filep, " ", code)
|
||
|
|
|
||
|
|
self.PrintIndented(
|
||
|
|
filep, " ", entry.CodeComplete("msg", entry.GetVarName("msg"))
|
||
|
|
)
|
||
|
|
filep.write(
|
||
|
|
""" return (0);
|
||
|
|
}
|
||
|
|
"""
|
||
|
|
)
|
||
|
|
|
||
|
|
# Complete message unmarshaling
|
||
|
|
filep.write(
|
||
|
|
"""
|
||
|
|
int
|
||
|
|
evtag_unmarshal_%(name)s(struct evbuffer *evbuf, ev_uint32_t need_tag,
|
||
|
|
struct %(name)s *msg)
|
||
|
|
{
|
||
|
|
ev_uint32_t tag;
|
||
|
|
int res = -1;
|
||
|
|
|
||
|
|
struct evbuffer *tmp = evbuffer_new();
|
||
|
|
|
||
|
|
if (evtag_unmarshal(evbuf, &tag, tmp) == -1 || tag != need_tag)
|
||
|
|
goto error;
|
||
|
|
|
||
|
|
if (%(name)s_unmarshal(msg, tmp) == -1)
|
||
|
|
goto error;
|
||
|
|
|
||
|
|
res = 0;
|
||
|
|
|
||
|
|
error:
|
||
|
|
evbuffer_free(tmp);
|
||
|
|
return (res);
|
||
|
|
}
|
||
|
|
"""
|
||
|
|
% {"name": self._name}
|
||
|
|
)
|
||
|
|
|
||
|
|
# Complete message marshaling
|
||
|
|
filep.write(
|
||
|
|
"""
|
||
|
|
void
|
||
|
|
evtag_marshal_%(name)s(struct evbuffer *evbuf, ev_uint32_t tag,
|
||
|
|
const struct %(name)s *msg)
|
||
|
|
{
|
||
|
|
struct evbuffer *buf_ = evbuffer_new();
|
||
|
|
assert(buf_ != NULL);
|
||
|
|
%(name)s_marshal(buf_, msg);
|
||
|
|
evtag_marshal_buffer(evbuf, tag, buf_);
|
||
|
|
evbuffer_free(buf_);
|
||
|
|
}
|
||
|
|
|
||
|
|
"""
|
||
|
|
% {"name": self._name}
|
||
|
|
)
|
||
|
|
|
||
|
|
|
||
|
|
class Entry(object):
|
||
|
|
def __init__(self, ent_type, name, tag):
|
||
|
|
self._type = ent_type
|
||
|
|
self._name = name
|
||
|
|
self._tag = int(tag)
|
||
|
|
self._ctype = ent_type
|
||
|
|
self._optional = False
|
||
|
|
self._can_be_array = False
|
||
|
|
self._array = False
|
||
|
|
self._line_count = -1
|
||
|
|
self._struct = None
|
||
|
|
self._refname = None
|
||
|
|
|
||
|
|
self._optpointer = True
|
||
|
|
self._optaddarg = True
|
||
|
|
|
||
|
|
@staticmethod
|
||
|
|
def GetInitializer():
|
||
|
|
raise NotImplementedError("Entry does not provide an initializer")
|
||
|
|
|
||
|
|
def SetStruct(self, struct):
|
||
|
|
self._struct = struct
|
||
|
|
|
||
|
|
def LineCount(self):
|
||
|
|
assert self._line_count != -1
|
||
|
|
return self._line_count
|
||
|
|
|
||
|
|
def SetLineCount(self, number):
|
||
|
|
self._line_count = number
|
||
|
|
|
||
|
|
def Array(self):
|
||
|
|
return self._array
|
||
|
|
|
||
|
|
def Optional(self):
|
||
|
|
return self._optional
|
||
|
|
|
||
|
|
def Tag(self):
|
||
|
|
return self._tag
|
||
|
|
|
||
|
|
def Name(self):
|
||
|
|
return self._name
|
||
|
|
|
||
|
|
def Type(self):
|
||
|
|
return self._type
|
||
|
|
|
||
|
|
def MakeArray(self):
|
||
|
|
self._array = True
|
||
|
|
|
||
|
|
def MakeOptional(self):
|
||
|
|
self._optional = True
|
||
|
|
|
||
|
|
def Verify(self):
|
||
|
|
if self.Array() and not self._can_be_array:
|
||
|
|
raise RpcGenError(
|
||
|
|
'Entry "%s" cannot be created as an array '
|
||
|
|
"around line %d" % (self._name, self.LineCount())
|
||
|
|
)
|
||
|
|
if not self._struct:
|
||
|
|
raise RpcGenError(
|
||
|
|
'Entry "%s" does not know which struct it belongs to '
|
||
|
|
"around line %d" % (self._name, self.LineCount())
|
||
|
|
)
|
||
|
|
if self._optional and self._array:
|
||
|
|
raise RpcGenError(
|
||
|
|
'Entry "%s" has illegal combination of optional and array '
|
||
|
|
"around line %d" % (self._name, self.LineCount())
|
||
|
|
)
|
||
|
|
|
||
|
|
def GetTranslation(self, extradict=None):
|
||
|
|
if extradict is None:
|
||
|
|
extradict = {}
|
||
|
|
mapping = {
|
||
|
|
"parent_name": self._struct.Name(),
|
||
|
|
"name": self._name,
|
||
|
|
"ctype": self._ctype,
|
||
|
|
"refname": self._refname,
|
||
|
|
"optpointer": self._optpointer and "*" or "",
|
||
|
|
"optreference": self._optpointer and "&" or "",
|
||
|
|
"optaddarg": self._optaddarg and ", const %s value" % self._ctype or "",
|
||
|
|
}
|
||
|
|
for (k, v) in list(extradict.items()):
|
||
|
|
mapping[k] = v
|
||
|
|
|
||
|
|
return mapping
|
||
|
|
|
||
|
|
def GetVarName(self, var):
|
||
|
|
return "%(var)s->%(name)s_data" % self.GetTranslation({"var": var})
|
||
|
|
|
||
|
|
def GetVarLen(self, _var):
|
||
|
|
return "sizeof(%s)" % self._ctype
|
||
|
|
|
||
|
|
def GetFuncName(self):
|
||
|
|
return "%s_%s_get" % (self._struct.Name(), self._name)
|
||
|
|
|
||
|
|
def GetDeclaration(self, funcname):
|
||
|
|
code = [
|
||
|
|
"int %s(struct %s *, %s *);" % (funcname, self._struct.Name(), self._ctype)
|
||
|
|
]
|
||
|
|
return code
|
||
|
|
|
||
|
|
def CodeGet(self):
|
||
|
|
code = """int
|
||
|
|
%(parent_name)s_%(name)s_get(struct %(parent_name)s *msg, %(ctype)s *value)
|
||
|
|
{
|
||
|
|
if (msg->%(name)s_set != 1)
|
||
|
|
return (-1);
|
||
|
|
*value = msg->%(name)s_data;
|
||
|
|
return (0);
|
||
|
|
}"""
|
||
|
|
code = code % self.GetTranslation()
|
||
|
|
return code.split("\n")
|
||
|
|
|
||
|
|
def AssignFuncName(self):
|
||
|
|
return "%s_%s_assign" % (self._struct.Name(), self._name)
|
||
|
|
|
||
|
|
def AddFuncName(self):
|
||
|
|
return "%s_%s_add" % (self._struct.Name(), self._name)
|
||
|
|
|
||
|
|
def AssignDeclaration(self, funcname):
|
||
|
|
code = [
|
||
|
|
"int %s(struct %s *, const %s);"
|
||
|
|
% (funcname, self._struct.Name(), self._ctype)
|
||
|
|
]
|
||
|
|
return code
|
||
|
|
|
||
|
|
def CodeAssign(self):
|
||
|
|
code = [
|
||
|
|
"int",
|
||
|
|
"%(parent_name)s_%(name)s_assign(struct %(parent_name)s *msg,"
|
||
|
|
" const %(ctype)s value)",
|
||
|
|
"{",
|
||
|
|
" msg->%(name)s_set = 1;",
|
||
|
|
" msg->%(name)s_data = value;",
|
||
|
|
" return (0);",
|
||
|
|
"}",
|
||
|
|
]
|
||
|
|
code = "\n".join(code)
|
||
|
|
code = code % self.GetTranslation()
|
||
|
|
return code.split("\n")
|
||
|
|
|
||
|
|
def CodeClear(self, structname):
|
||
|
|
code = ["%s->%s_set = 0;" % (structname, self.Name())]
|
||
|
|
|
||
|
|
return code
|
||
|
|
|
||
|
|
@staticmethod
|
||
|
|
def CodeComplete(_structname, _var_name):
|
||
|
|
return []
|
||
|
|
|
||
|
|
@staticmethod
|
||
|
|
def CodeFree(_name):
|
||
|
|
return []
|
||
|
|
|
||
|
|
def CodeBase(self):
|
||
|
|
code = ["%(parent_name)s_%(name)s_assign,", "%(parent_name)s_%(name)s_get,"]
|
||
|
|
if self.Array():
|
||
|
|
code.append("%(parent_name)s_%(name)s_add,")
|
||
|
|
|
||
|
|
code = "\n".join(code)
|
||
|
|
code = code % self.GetTranslation()
|
||
|
|
return code.split("\n")
|
||
|
|
|
||
|
|
|
||
|
|
class EntryBytes(Entry):
|
||
|
|
def __init__(self, ent_type, name, tag, length):
|
||
|
|
# Init base class
|
||
|
|
super(EntryBytes, self).__init__(ent_type, name, tag)
|
||
|
|
|
||
|
|
self._length = length
|
||
|
|
self._ctype = "ev_uint8_t"
|
||
|
|
|
||
|
|
@staticmethod
|
||
|
|
def GetInitializer():
|
||
|
|
return "NULL"
|
||
|
|
|
||
|
|
def GetVarLen(self, _var):
|
||
|
|
return "(%s)" % self._length
|
||
|
|
|
||
|
|
@staticmethod
|
||
|
|
def CodeArrayAdd(varname, _value):
|
||
|
|
# XXX: copy here
|
||
|
|
return ["%(varname)s = NULL;" % {"varname": varname}]
|
||
|
|
|
||
|
|
def GetDeclaration(self, funcname):
|
||
|
|
code = [
|
||
|
|
"int %s(struct %s *, %s **);" % (funcname, self._struct.Name(), self._ctype)
|
||
|
|
]
|
||
|
|
return code
|
||
|
|
|
||
|
|
def AssignDeclaration(self, funcname):
|
||
|
|
code = [
|
||
|
|
"int %s(struct %s *, const %s *);"
|
||
|
|
% (funcname, self._struct.Name(), self._ctype)
|
||
|
|
]
|
||
|
|
return code
|
||
|
|
|
||
|
|
def Declaration(self):
|
||
|
|
dcl = ["ev_uint8_t %s_data[%s];" % (self._name, self._length)]
|
||
|
|
|
||
|
|
return dcl
|
||
|
|
|
||
|
|
def CodeGet(self):
|
||
|
|
name = self._name
|
||
|
|
code = [
|
||
|
|
"int",
|
||
|
|
"%s_%s_get(struct %s *msg, %s **value)"
|
||
|
|
% (self._struct.Name(), name, self._struct.Name(), self._ctype),
|
||
|
|
"{",
|
||
|
|
" if (msg->%s_set != 1)" % name,
|
||
|
|
" return (-1);",
|
||
|
|
" *value = msg->%s_data;" % name,
|
||
|
|
" return (0);",
|
||
|
|
"}",
|
||
|
|
]
|
||
|
|
return code
|
||
|
|
|
||
|
|
def CodeAssign(self):
|
||
|
|
name = self._name
|
||
|
|
code = [
|
||
|
|
"int",
|
||
|
|
"%s_%s_assign(struct %s *msg, const %s *value)"
|
||
|
|
% (self._struct.Name(), name, self._struct.Name(), self._ctype),
|
||
|
|
"{",
|
||
|
|
" msg->%s_set = 1;" % name,
|
||
|
|
" memcpy(msg->%s_data, value, %s);" % (name, self._length),
|
||
|
|
" return (0);",
|
||
|
|
"}",
|
||
|
|
]
|
||
|
|
return code
|
||
|
|
|
||
|
|
def CodeUnmarshal(self, buf, tag_name, var_name, var_len):
|
||
|
|
code = [
|
||
|
|
"if (evtag_unmarshal_fixed(%(buf)s, %(tag)s, "
|
||
|
|
"%(var)s, %(varlen)s) == -1) {",
|
||
|
|
' event_warnx("%%s: failed to unmarshal %(name)s", __func__);',
|
||
|
|
" return (-1);",
|
||
|
|
"}",
|
||
|
|
]
|
||
|
|
return TranslateList(
|
||
|
|
code,
|
||
|
|
self.GetTranslation(
|
||
|
|
{"var": var_name, "varlen": var_len, "buf": buf, "tag": tag_name}
|
||
|
|
),
|
||
|
|
)
|
||
|
|
|
||
|
|
@staticmethod
|
||
|
|
def CodeMarshal(buf, tag_name, var_name, var_len):
|
||
|
|
code = ["evtag_marshal(%s, %s, %s, %s);" % (buf, tag_name, var_name, var_len)]
|
||
|
|
return code
|
||
|
|
|
||
|
|
def CodeClear(self, structname):
|
||
|
|
code = [
|
||
|
|
"%s->%s_set = 0;" % (structname, self.Name()),
|
||
|
|
"memset(%s->%s_data, 0, sizeof(%s->%s_data));"
|
||
|
|
% (structname, self._name, structname, self._name),
|
||
|
|
]
|
||
|
|
|
||
|
|
return code
|
||
|
|
|
||
|
|
def CodeInitialize(self, name):
|
||
|
|
code = [
|
||
|
|
"memset(%s->%s_data, 0, sizeof(%s->%s_data));"
|
||
|
|
% (name, self._name, name, self._name)
|
||
|
|
]
|
||
|
|
return code
|
||
|
|
|
||
|
|
def Verify(self):
|
||
|
|
if not self._length:
|
||
|
|
raise RpcGenError(
|
||
|
|
'Entry "%s" needs a length '
|
||
|
|
"around line %d" % (self._name, self.LineCount())
|
||
|
|
)
|
||
|
|
|
||
|
|
super(EntryBytes, self).Verify()
|
||
|
|
|
||
|
|
|
||
|
|
class EntryInt(Entry):
|
||
|
|
def __init__(self, ent_type, name, tag, bits=32):
|
||
|
|
# Init base class
|
||
|
|
super(EntryInt, self).__init__(ent_type, name, tag)
|
||
|
|
|
||
|
|
self._can_be_array = True
|
||
|
|
if bits == 32:
|
||
|
|
self._ctype = "ev_uint32_t"
|
||
|
|
self._marshal_type = "int"
|
||
|
|
if bits == 64:
|
||
|
|
self._ctype = "ev_uint64_t"
|
||
|
|
self._marshal_type = "int64"
|
||
|
|
|
||
|
|
@staticmethod
|
||
|
|
def GetInitializer():
|
||
|
|
return "0"
|
||
|
|
|
||
|
|
@staticmethod
|
||
|
|
def CodeArrayFree(_var):
|
||
|
|
return []
|
||
|
|
|
||
|
|
@staticmethod
|
||
|
|
def CodeArrayAssign(varname, srcvar):
|
||
|
|
return ["%(varname)s = %(srcvar)s;" % {"varname": varname, "srcvar": srcvar}]
|
||
|
|
|
||
|
|
@staticmethod
|
||
|
|
def CodeArrayAdd(varname, value):
|
||
|
|
"""Returns a new entry of this type."""
|
||
|
|
return ["%(varname)s = %(value)s;" % {"varname": varname, "value": value}]
|
||
|
|
|
||
|
|
def CodeUnmarshal(self, buf, tag_name, var_name, _var_len):
|
||
|
|
code = [
|
||
|
|
"if (evtag_unmarshal_%(ma)s(%(buf)s, %(tag)s, &%(var)s) == -1) {",
|
||
|
|
' event_warnx("%%s: failed to unmarshal %(name)s", __func__);',
|
||
|
|
" return (-1);",
|
||
|
|
"}",
|
||
|
|
]
|
||
|
|
code = "\n".join(code) % self.GetTranslation(
|
||
|
|
{"ma": self._marshal_type, "buf": buf, "tag": tag_name, "var": var_name}
|
||
|
|
)
|
||
|
|
return code.split("\n")
|
||
|
|
|
||
|
|
def CodeMarshal(self, buf, tag_name, var_name, _var_len):
|
||
|
|
code = [
|
||
|
|
"evtag_marshal_%s(%s, %s, %s);"
|
||
|
|
% (self._marshal_type, buf, tag_name, var_name)
|
||
|
|
]
|
||
|
|
return code
|
||
|
|
|
||
|
|
def Declaration(self):
|
||
|
|
dcl = ["%s %s_data;" % (self._ctype, self._name)]
|
||
|
|
|
||
|
|
return dcl
|
||
|
|
|
||
|
|
def CodeInitialize(self, name):
|
||
|
|
code = ["%s->%s_data = 0;" % (name, self._name)]
|
||
|
|
return code
|
||
|
|
|
||
|
|
|
||
|
|
class EntryString(Entry):
|
||
|
|
def __init__(self, ent_type, name, tag):
|
||
|
|
# Init base class
|
||
|
|
super(EntryString, self).__init__(ent_type, name, tag)
|
||
|
|
|
||
|
|
self._can_be_array = True
|
||
|
|
self._ctype = "char *"
|
||
|
|
|
||
|
|
@staticmethod
|
||
|
|
def GetInitializer():
|
||
|
|
return "NULL"
|
||
|
|
|
||
|
|
@staticmethod
|
||
|
|
def CodeArrayFree(varname):
|
||
|
|
code = ["if (%(var)s != NULL) free(%(var)s);"]
|
||
|
|
|
||
|
|
return TranslateList(code, {"var": varname})
|
||
|
|
|
||
|
|
@staticmethod
|
||
|
|
def CodeArrayAssign(varname, srcvar):
|
||
|
|
code = [
|
||
|
|
"if (%(var)s != NULL)",
|
||
|
|
" free(%(var)s);",
|
||
|
|
"%(var)s = strdup(%(srcvar)s);",
|
||
|
|
"if (%(var)s == NULL) {",
|
||
|
|
' event_warnx("%%s: strdup", __func__);',
|
||
|
|
" return (-1);",
|
||
|
|
"}",
|
||
|
|
]
|
||
|
|
|
||
|
|
return TranslateList(code, {"var": varname, "srcvar": srcvar})
|
||
|
|
|
||
|
|
@staticmethod
|
||
|
|
def CodeArrayAdd(varname, value):
|
||
|
|
code = [
|
||
|
|
"if (%(value)s != NULL) {",
|
||
|
|
" %(var)s = strdup(%(value)s);",
|
||
|
|
" if (%(var)s == NULL) {",
|
||
|
|
" goto error;",
|
||
|
|
" }",
|
||
|
|
"} else {",
|
||
|
|
" %(var)s = NULL;",
|
||
|
|
"}",
|
||
|
|
]
|
||
|
|
|
||
|
|
return TranslateList(code, {"var": varname, "value": value})
|
||
|
|
|
||
|
|
def GetVarLen(self, var):
|
||
|
|
return "strlen(%s)" % self.GetVarName(var)
|
||
|
|
|
||
|
|
@staticmethod
|
||
|
|
def CodeMakeInitalize(varname):
|
||
|
|
return "%(varname)s = NULL;" % {"varname": varname}
|
||
|
|
|
||
|
|
def CodeAssign(self):
|
||
|
|
code = """int
|
||
|
|
%(parent_name)s_%(name)s_assign(struct %(parent_name)s *msg,
|
||
|
|
const %(ctype)s value)
|
||
|
|
{
|
||
|
|
if (msg->%(name)s_data != NULL)
|
||
|
|
free(msg->%(name)s_data);
|
||
|
|
if ((msg->%(name)s_data = strdup(value)) == NULL)
|
||
|
|
return (-1);
|
||
|
|
msg->%(name)s_set = 1;
|
||
|
|
return (0);
|
||
|
|
}""" % (
|
||
|
|
self.GetTranslation()
|
||
|
|
)
|
||
|
|
|
||
|
|
return code.split("\n")
|
||
|
|
|
||
|
|
def CodeUnmarshal(self, buf, tag_name, var_name, _var_len):
|
||
|
|
code = [
|
||
|
|
"if (evtag_unmarshal_string(%(buf)s, %(tag)s, &%(var)s) == -1) {",
|
||
|
|
' event_warnx("%%s: failed to unmarshal %(name)s", __func__);',
|
||
|
|
" return (-1);",
|
||
|
|
"}",
|
||
|
|
]
|
||
|
|
code = "\n".join(code) % self.GetTranslation(
|
||
|
|
{"buf": buf, "tag": tag_name, "var": var_name}
|
||
|
|
)
|
||
|
|
return code.split("\n")
|
||
|
|
|
||
|
|
@staticmethod
|
||
|
|
def CodeMarshal(buf, tag_name, var_name, _var_len):
|
||
|
|
code = ["evtag_marshal_string(%s, %s, %s);" % (buf, tag_name, var_name)]
|
||
|
|
return code
|
||
|
|
|
||
|
|
def CodeClear(self, structname):
|
||
|
|
code = [
|
||
|
|
"if (%s->%s_set == 1) {" % (structname, self.Name()),
|
||
|
|
" free(%s->%s_data);" % (structname, self.Name()),
|
||
|
|
" %s->%s_data = NULL;" % (structname, self.Name()),
|
||
|
|
" %s->%s_set = 0;" % (structname, self.Name()),
|
||
|
|
"}",
|
||
|
|
]
|
||
|
|
|
||
|
|
return code
|
||
|
|
|
||
|
|
def CodeInitialize(self, name):
|
||
|
|
code = ["%s->%s_data = NULL;" % (name, self._name)]
|
||
|
|
return code
|
||
|
|
|
||
|
|
def CodeFree(self, name):
|
||
|
|
code = [
|
||
|
|
"if (%s->%s_data != NULL)" % (name, self._name),
|
||
|
|
" free (%s->%s_data);" % (name, self._name),
|
||
|
|
]
|
||
|
|
|
||
|
|
return code
|
||
|
|
|
||
|
|
def Declaration(self):
|
||
|
|
dcl = ["char *%s_data;" % self._name]
|
||
|
|
|
||
|
|
return dcl
|
||
|
|
|
||
|
|
|
||
|
|
class EntryStruct(Entry):
|
||
|
|
def __init__(self, ent_type, name, tag, refname):
|
||
|
|
# Init base class
|
||
|
|
super(EntryStruct, self).__init__(ent_type, name, tag)
|
||
|
|
|
||
|
|
self._optpointer = False
|
||
|
|
self._can_be_array = True
|
||
|
|
self._refname = refname
|
||
|
|
self._ctype = "struct %s*" % refname
|
||
|
|
self._optaddarg = False
|
||
|
|
|
||
|
|
def GetInitializer(self):
|
||
|
|
return "NULL"
|
||
|
|
|
||
|
|
def GetVarLen(self, _var):
|
||
|
|
return "-1"
|
||
|
|
|
||
|
|
def CodeArrayAdd(self, varname, _value):
|
||
|
|
code = [
|
||
|
|
"%(varname)s = %(refname)s_new();",
|
||
|
|
"if (%(varname)s == NULL)",
|
||
|
|
" goto error;",
|
||
|
|
]
|
||
|
|
|
||
|
|
return TranslateList(code, self.GetTranslation({"varname": varname}))
|
||
|
|
|
||
|
|
def CodeArrayFree(self, var):
|
||
|
|
code = ["%(refname)s_free(%(var)s);" % self.GetTranslation({"var": var})]
|
||
|
|
return code
|
||
|
|
|
||
|
|
def CodeArrayAssign(self, var, srcvar):
|
||
|
|
code = [
|
||
|
|
"int had_error = 0;",
|
||
|
|
"struct evbuffer *tmp = NULL;",
|
||
|
|
"%(refname)s_clear(%(var)s);",
|
||
|
|
"if ((tmp = evbuffer_new()) == NULL) {",
|
||
|
|
' event_warn("%%s: evbuffer_new()", __func__);',
|
||
|
|
" had_error = 1;",
|
||
|
|
" goto done;",
|
||
|
|
"}",
|
||
|
|
"%(refname)s_marshal(tmp, %(srcvar)s);",
|
||
|
|
"if (%(refname)s_unmarshal(%(var)s, tmp) == -1) {",
|
||
|
|
' event_warnx("%%s: %(refname)s_unmarshal", __func__);',
|
||
|
|
" had_error = 1;",
|
||
|
|
" goto done;",
|
||
|
|
"}",
|
||
|
|
"done:",
|
||
|
|
"if (tmp != NULL)",
|
||
|
|
" evbuffer_free(tmp);",
|
||
|
|
"if (had_error) {",
|
||
|
|
" %(refname)s_clear(%(var)s);",
|
||
|
|
" return (-1);",
|
||
|
|
"}",
|
||
|
|
]
|
||
|
|
|
||
|
|
return TranslateList(code, self.GetTranslation({"var": var, "srcvar": srcvar}))
|
||
|
|
|
||
|
|
def CodeGet(self):
|
||
|
|
name = self._name
|
||
|
|
code = [
|
||
|
|
"int",
|
||
|
|
"%s_%s_get(struct %s *msg, %s *value)"
|
||
|
|
% (self._struct.Name(), name, self._struct.Name(), self._ctype),
|
||
|
|
"{",
|
||
|
|
" if (msg->%s_set != 1) {" % name,
|
||
|
|
" msg->%s_data = %s_new();" % (name, self._refname),
|
||
|
|
" if (msg->%s_data == NULL)" % name,
|
||
|
|
" return (-1);",
|
||
|
|
" msg->%s_set = 1;" % name,
|
||
|
|
" }",
|
||
|
|
" *value = msg->%s_data;" % name,
|
||
|
|
" return (0);",
|
||
|
|
"}",
|
||
|
|
]
|
||
|
|
return code
|
||
|
|
|
||
|
|
def CodeAssign(self):
|
||
|
|
code = (
|
||
|
|
"""int
|
||
|
|
%(parent_name)s_%(name)s_assign(struct %(parent_name)s *msg,
|
||
|
|
const %(ctype)s value)
|
||
|
|
{
|
||
|
|
struct evbuffer *tmp = NULL;
|
||
|
|
if (msg->%(name)s_set) {
|
||
|
|
%(refname)s_clear(msg->%(name)s_data);
|
||
|
|
msg->%(name)s_set = 0;
|
||
|
|
} else {
|
||
|
|
msg->%(name)s_data = %(refname)s_new();
|
||
|
|
if (msg->%(name)s_data == NULL) {
|
||
|
|
event_warn("%%s: %(refname)s_new()", __func__);
|
||
|
|
goto error;
|
||
|
|
}
|
||
|
|
}
|
||
|
|
if ((tmp = evbuffer_new()) == NULL) {
|
||
|
|
event_warn("%%s: evbuffer_new()", __func__);
|
||
|
|
goto error;
|
||
|
|
}
|
||
|
|
%(refname)s_marshal(tmp, value);
|
||
|
|
if (%(refname)s_unmarshal(msg->%(name)s_data, tmp) == -1) {
|
||
|
|
event_warnx("%%s: %(refname)s_unmarshal", __func__);
|
||
|
|
goto error;
|
||
|
|
}
|
||
|
|
msg->%(name)s_set = 1;
|
||
|
|
evbuffer_free(tmp);
|
||
|
|
return (0);
|
||
|
|
error:
|
||
|
|
if (tmp != NULL)
|
||
|
|
evbuffer_free(tmp);
|
||
|
|
if (msg->%(name)s_data != NULL) {
|
||
|
|
%(refname)s_free(msg->%(name)s_data);
|
||
|
|
msg->%(name)s_data = NULL;
|
||
|
|
}
|
||
|
|
return (-1);
|
||
|
|
}"""
|
||
|
|
% self.GetTranslation()
|
||
|
|
)
|
||
|
|
return code.split("\n")
|
||
|
|
|
||
|
|
def CodeComplete(self, structname, var_name):
|
||
|
|
code = [
|
||
|
|
"if (%(structname)s->%(name)s_set && "
|
||
|
|
"%(refname)s_complete(%(var)s) == -1)",
|
||
|
|
" return (-1);",
|
||
|
|
]
|
||
|
|
|
||
|
|
return TranslateList(
|
||
|
|
code, self.GetTranslation({"structname": structname, "var": var_name})
|
||
|
|
)
|
||
|
|
|
||
|
|
def CodeUnmarshal(self, buf, tag_name, var_name, _var_len):
|
||
|
|
code = [
|
||
|
|
"%(var)s = %(refname)s_new();",
|
||
|
|
"if (%(var)s == NULL)",
|
||
|
|
" return (-1);",
|
||
|
|
"if (evtag_unmarshal_%(refname)s(%(buf)s, %(tag)s, ",
|
||
|
|
" %(var)s) == -1) {",
|
||
|
|
' event_warnx("%%s: failed to unmarshal %(name)s", __func__);',
|
||
|
|
" return (-1);",
|
||
|
|
"}",
|
||
|
|
]
|
||
|
|
code = "\n".join(code) % self.GetTranslation(
|
||
|
|
{"buf": buf, "tag": tag_name, "var": var_name}
|
||
|
|
)
|
||
|
|
return code.split("\n")
|
||
|
|
|
||
|
|
def CodeMarshal(self, buf, tag_name, var_name, _var_len):
|
||
|
|
code = [
|
||
|
|
"evtag_marshal_%s(%s, %s, %s);" % (self._refname, buf, tag_name, var_name)
|
||
|
|
]
|
||
|
|
return code
|
||
|
|
|
||
|
|
def CodeClear(self, structname):
|
||
|
|
code = [
|
||
|
|
"if (%s->%s_set == 1) {" % (structname, self.Name()),
|
||
|
|
" %s_free(%s->%s_data);" % (self._refname, structname, self.Name()),
|
||
|
|
" %s->%s_data = NULL;" % (structname, self.Name()),
|
||
|
|
" %s->%s_set = 0;" % (structname, self.Name()),
|
||
|
|
"}",
|
||
|
|
]
|
||
|
|
|
||
|
|
return code
|
||
|
|
|
||
|
|
def CodeInitialize(self, name):
|
||
|
|
code = ["%s->%s_data = NULL;" % (name, self._name)]
|
||
|
|
return code
|
||
|
|
|
||
|
|
def CodeFree(self, name):
|
||
|
|
code = [
|
||
|
|
"if (%s->%s_data != NULL)" % (name, self._name),
|
||
|
|
" %s_free(%s->%s_data);" % (self._refname, name, self._name),
|
||
|
|
]
|
||
|
|
|
||
|
|
return code
|
||
|
|
|
||
|
|
def Declaration(self):
|
||
|
|
dcl = ["%s %s_data;" % (self._ctype, self._name)]
|
||
|
|
|
||
|
|
return dcl
|
||
|
|
|
||
|
|
|
||
|
|
class EntryVarBytes(Entry):
|
||
|
|
def __init__(self, ent_type, name, tag):
|
||
|
|
# Init base class
|
||
|
|
super(EntryVarBytes, self).__init__(ent_type, name, tag)
|
||
|
|
|
||
|
|
self._ctype = "ev_uint8_t *"
|
||
|
|
|
||
|
|
@staticmethod
|
||
|
|
def GetInitializer():
|
||
|
|
return "NULL"
|
||
|
|
|
||
|
|
def GetVarLen(self, var):
|
||
|
|
return "%(var)s->%(name)s_length" % self.GetTranslation({"var": var})
|
||
|
|
|
||
|
|
@staticmethod
|
||
|
|
def CodeArrayAdd(varname, _value):
|
||
|
|
# xxx: copy
|
||
|
|
return ["%(varname)s = NULL;" % {"varname": varname}]
|
||
|
|
|
||
|
|
def GetDeclaration(self, funcname):
|
||
|
|
code = [
|
||
|
|
"int %s(struct %s *, %s *, ev_uint32_t *);"
|
||
|
|
% (funcname, self._struct.Name(), self._ctype)
|
||
|
|
]
|
||
|
|
return code
|
||
|
|
|
||
|
|
def AssignDeclaration(self, funcname):
|
||
|
|
code = [
|
||
|
|
"int %s(struct %s *, const %s, ev_uint32_t);"
|
||
|
|
% (funcname, self._struct.Name(), self._ctype)
|
||
|
|
]
|
||
|
|
return code
|
||
|
|
|
||
|
|
def CodeAssign(self):
|
||
|
|
name = self._name
|
||
|
|
code = [
|
||
|
|
"int",
|
||
|
|
"%s_%s_assign(struct %s *msg, "
|
||
|
|
"const %s value, ev_uint32_t len)"
|
||
|
|
% (self._struct.Name(), name, self._struct.Name(), self._ctype),
|
||
|
|
"{",
|
||
|
|
" if (msg->%s_data != NULL)" % name,
|
||
|
|
" free (msg->%s_data);" % name,
|
||
|
|
" msg->%s_data = malloc(len);" % name,
|
||
|
|
" if (msg->%s_data == NULL)" % name,
|
||
|
|
" return (-1);",
|
||
|
|
" msg->%s_set = 1;" % name,
|
||
|
|
" msg->%s_length = len;" % name,
|
||
|
|
" memcpy(msg->%s_data, value, len);" % name,
|
||
|
|
" return (0);",
|
||
|
|
"}",
|
||
|
|
]
|
||
|
|
return code
|
||
|
|
|
||
|
|
def CodeGet(self):
|
||
|
|
name = self._name
|
||
|
|
code = [
|
||
|
|
"int",
|
||
|
|
"%s_%s_get(struct %s *msg, %s *value, ev_uint32_t *plen)"
|
||
|
|
% (self._struct.Name(), name, self._struct.Name(), self._ctype),
|
||
|
|
"{",
|
||
|
|
" if (msg->%s_set != 1)" % name,
|
||
|
|
" return (-1);",
|
||
|
|
" *value = msg->%s_data;" % name,
|
||
|
|
" *plen = msg->%s_length;" % name,
|
||
|
|
" return (0);",
|
||
|
|
"}",
|
||
|
|
]
|
||
|
|
return code
|
||
|
|
|
||
|
|
def CodeUnmarshal(self, buf, tag_name, var_name, var_len):
|
||
|
|
code = [
|
||
|
|
"if (evtag_payload_length(%(buf)s, &%(varlen)s) == -1)",
|
||
|
|
" return (-1);",
|
||
|
|
# We do not want DoS opportunities
|
||
|
|
"if (%(varlen)s > evbuffer_get_length(%(buf)s))",
|
||
|
|
" return (-1);",
|
||
|
|
"if ((%(var)s = malloc(%(varlen)s)) == NULL)",
|
||
|
|
" return (-1);",
|
||
|
|
"if (evtag_unmarshal_fixed(%(buf)s, %(tag)s, %(var)s, "
|
||
|
|
"%(varlen)s) == -1) {",
|
||
|
|
' event_warnx("%%s: failed to unmarshal %(name)s", __func__);',
|
||
|
|
" return (-1);",
|
||
|
|
"}",
|
||
|
|
]
|
||
|
|
code = "\n".join(code) % self.GetTranslation(
|
||
|
|
{"buf": buf, "tag": tag_name, "var": var_name, "varlen": var_len}
|
||
|
|
)
|
||
|
|
return code.split("\n")
|
||
|
|
|
||
|
|
@staticmethod
|
||
|
|
def CodeMarshal(buf, tag_name, var_name, var_len):
|
||
|
|
code = ["evtag_marshal(%s, %s, %s, %s);" % (buf, tag_name, var_name, var_len)]
|
||
|
|
return code
|
||
|
|
|
||
|
|
def CodeClear(self, structname):
|
||
|
|
code = [
|
||
|
|
"if (%s->%s_set == 1) {" % (structname, self.Name()),
|
||
|
|
" free (%s->%s_data);" % (structname, self.Name()),
|
||
|
|
" %s->%s_data = NULL;" % (structname, self.Name()),
|
||
|
|
" %s->%s_length = 0;" % (structname, self.Name()),
|
||
|
|
" %s->%s_set = 0;" % (structname, self.Name()),
|
||
|
|
"}",
|
||
|
|
]
|
||
|
|
|
||
|
|
return code
|
||
|
|
|
||
|
|
def CodeInitialize(self, name):
|
||
|
|
code = [
|
||
|
|
"%s->%s_data = NULL;" % (name, self._name),
|
||
|
|
"%s->%s_length = 0;" % (name, self._name),
|
||
|
|
]
|
||
|
|
return code
|
||
|
|
|
||
|
|
def CodeFree(self, name):
|
||
|
|
code = [
|
||
|
|
"if (%s->%s_data != NULL)" % (name, self._name),
|
||
|
|
" free(%s->%s_data);" % (name, self._name),
|
||
|
|
]
|
||
|
|
|
||
|
|
return code
|
||
|
|
|
||
|
|
def Declaration(self):
|
||
|
|
dcl = [
|
||
|
|
"ev_uint8_t *%s_data;" % self._name,
|
||
|
|
"ev_uint32_t %s_length;" % self._name,
|
||
|
|
]
|
||
|
|
|
||
|
|
return dcl
|
||
|
|
|
||
|
|
|
||
|
|
class EntryArray(Entry):
|
||
|
|
_index = None
|
||
|
|
|
||
|
|
def __init__(self, entry):
|
||
|
|
# Init base class
|
||
|
|
super(EntryArray, self).__init__(entry._type, entry._name, entry._tag)
|
||
|
|
|
||
|
|
self._entry = entry
|
||
|
|
self._refname = entry._refname
|
||
|
|
self._ctype = self._entry._ctype
|
||
|
|
self._optional = True
|
||
|
|
self._optpointer = self._entry._optpointer
|
||
|
|
self._optaddarg = self._entry._optaddarg
|
||
|
|
|
||
|
|
# provide a new function for accessing the variable name
|
||
|
|
def GetVarName(var_name):
|
||
|
|
return "%(var)s->%(name)s_data[%(index)s]" % self._entry.GetTranslation(
|
||
|
|
{"var": var_name, "index": self._index}
|
||
|
|
)
|
||
|
|
|
||
|
|
self._entry.GetVarName = GetVarName
|
||
|
|
|
||
|
|
def GetInitializer(self):
|
||
|
|
return "NULL"
|
||
|
|
|
||
|
|
def GetVarName(self, var):
|
||
|
|
return var
|
||
|
|
|
||
|
|
def GetVarLen(self, _var_name):
|
||
|
|
return "-1"
|
||
|
|
|
||
|
|
def GetDeclaration(self, funcname):
|
||
|
|
"""Allows direct access to elements of the array."""
|
||
|
|
code = [
|
||
|
|
"int %(funcname)s(struct %(parent_name)s *, int, %(ctype)s *);"
|
||
|
|
% self.GetTranslation({"funcname": funcname})
|
||
|
|
]
|
||
|
|
return code
|
||
|
|
|
||
|
|
def AssignDeclaration(self, funcname):
|
||
|
|
code = [
|
||
|
|
"int %s(struct %s *, int, const %s);"
|
||
|
|
% (funcname, self._struct.Name(), self._ctype)
|
||
|
|
]
|
||
|
|
return code
|
||
|
|
|
||
|
|
def AddDeclaration(self, funcname):
|
||
|
|
code = [
|
||
|
|
"%(ctype)s %(optpointer)s "
|
||
|
|
"%(funcname)s(struct %(parent_name)s *msg%(optaddarg)s);"
|
||
|
|
% self.GetTranslation({"funcname": funcname})
|
||
|
|
]
|
||
|
|
return code
|
||
|
|
|
||
|
|
def CodeGet(self):
|
||
|
|
code = """int
|
||
|
|
%(parent_name)s_%(name)s_get(struct %(parent_name)s *msg, int offset,
|
||
|
|
%(ctype)s *value)
|
||
|
|
{
|
||
|
|
if (!msg->%(name)s_set || offset < 0 || offset >= msg->%(name)s_length)
|
||
|
|
return (-1);
|
||
|
|
*value = msg->%(name)s_data[offset];
|
||
|
|
return (0);
|
||
|
|
}
|
||
|
|
""" % (
|
||
|
|
self.GetTranslation()
|
||
|
|
)
|
||
|
|
|
||
|
|
return code.splitlines()
|
||
|
|
|
||
|
|
def CodeAssign(self):
|
||
|
|
code = [
|
||
|
|
"int",
|
||
|
|
"%(parent_name)s_%(name)s_assign(struct %(parent_name)s *msg, int off,",
|
||
|
|
" const %(ctype)s value)",
|
||
|
|
"{",
|
||
|
|
" if (!msg->%(name)s_set || off < 0 || off >= msg->%(name)s_length)",
|
||
|
|
" return (-1);",
|
||
|
|
"",
|
||
|
|
" {",
|
||
|
|
]
|
||
|
|
code = TranslateList(code, self.GetTranslation())
|
||
|
|
|
||
|
|
codearrayassign = self._entry.CodeArrayAssign(
|
||
|
|
"msg->%(name)s_data[off]" % self.GetTranslation(), "value"
|
||
|
|
)
|
||
|
|
code += [" " + x for x in codearrayassign]
|
||
|
|
|
||
|
|
code += TranslateList([" }", " return (0);", "}"], self.GetTranslation())
|
||
|
|
|
||
|
|
return code
|
||
|
|
|
||
|
|
def CodeAdd(self):
|
||
|
|
codearrayadd = self._entry.CodeArrayAdd(
|
||
|
|
"msg->%(name)s_data[msg->%(name)s_length - 1]" % self.GetTranslation(),
|
||
|
|
"value",
|
||
|
|
)
|
||
|
|
code = [
|
||
|
|
"static int",
|
||
|
|
"%(parent_name)s_%(name)s_expand_to_hold_more("
|
||
|
|
"struct %(parent_name)s *msg)",
|
||
|
|
"{",
|
||
|
|
" int tobe_allocated = msg->%(name)s_num_allocated;",
|
||
|
|
" %(ctype)s* new_data = NULL;",
|
||
|
|
" tobe_allocated = !tobe_allocated ? 1 : tobe_allocated << 1;",
|
||
|
|
" new_data = (%(ctype)s*) realloc(msg->%(name)s_data,",
|
||
|
|
" tobe_allocated * sizeof(%(ctype)s));",
|
||
|
|
" if (new_data == NULL)",
|
||
|
|
" return -1;",
|
||
|
|
" msg->%(name)s_data = new_data;",
|
||
|
|
" msg->%(name)s_num_allocated = tobe_allocated;",
|
||
|
|
" return 0;",
|
||
|
|
"}",
|
||
|
|
"",
|
||
|
|
"%(ctype)s %(optpointer)s",
|
||
|
|
"%(parent_name)s_%(name)s_add(struct %(parent_name)s *msg%(optaddarg)s)",
|
||
|
|
"{",
|
||
|
|
" if (++msg->%(name)s_length >= msg->%(name)s_num_allocated) {",
|
||
|
|
" if (%(parent_name)s_%(name)s_expand_to_hold_more(msg)<0)",
|
||
|
|
" goto error;",
|
||
|
|
" }",
|
||
|
|
]
|
||
|
|
|
||
|
|
code = TranslateList(code, self.GetTranslation())
|
||
|
|
|
||
|
|
code += [" " + x for x in codearrayadd]
|
||
|
|
|
||
|
|
code += TranslateList(
|
||
|
|
[
|
||
|
|
" msg->%(name)s_set = 1;",
|
||
|
|
" return %(optreference)s(msg->%(name)s_data["
|
||
|
|
"msg->%(name)s_length - 1]);",
|
||
|
|
"error:",
|
||
|
|
" --msg->%(name)s_length;",
|
||
|
|
" return (NULL);",
|
||
|
|
"}",
|
||
|
|
],
|
||
|
|
self.GetTranslation(),
|
||
|
|
)
|
||
|
|
|
||
|
|
return code
|
||
|
|
|
||
|
|
def CodeComplete(self, structname, var_name):
|
||
|
|
self._index = "i"
|
||
|
|
tmp = self._entry.CodeComplete(structname, self._entry.GetVarName(var_name))
|
||
|
|
# skip the whole loop if there is nothing to check
|
||
|
|
if not tmp:
|
||
|
|
return []
|
||
|
|
|
||
|
|
translate = self.GetTranslation({"structname": structname})
|
||
|
|
code = [
|
||
|
|
"{",
|
||
|
|
" int i;",
|
||
|
|
" for (i = 0; i < %(structname)s->%(name)s_length; ++i) {",
|
||
|
|
]
|
||
|
|
|
||
|
|
code = TranslateList(code, translate)
|
||
|
|
|
||
|
|
code += [" " + x for x in tmp]
|
||
|
|
|
||
|
|
code += [" }", "}"]
|
||
|
|
|
||
|
|
return code
|
||
|
|
|
||
|
|
def CodeUnmarshal(self, buf, tag_name, var_name, _var_len):
|
||
|
|
translate = self.GetTranslation(
|
||
|
|
{
|
||
|
|
"var": var_name,
|
||
|
|
"buf": buf,
|
||
|
|
"tag": tag_name,
|
||
|
|
"init": self._entry.GetInitializer(),
|
||
|
|
}
|
||
|
|
)
|
||
|
|
code = [
|
||
|
|
"if (%(var)s->%(name)s_length >= %(var)s->%(name)s_num_allocated &&",
|
||
|
|
" %(parent_name)s_%(name)s_expand_to_hold_more(%(var)s) < 0) {",
|
||
|
|
' puts("HEY NOW");',
|
||
|
|
" return (-1);",
|
||
|
|
"}",
|
||
|
|
]
|
||
|
|
|
||
|
|
# the unmarshal code directly returns
|
||
|
|
code = TranslateList(code, translate)
|
||
|
|
|
||
|
|
self._index = "%(var)s->%(name)s_length" % translate
|
||
|
|
code += self._entry.CodeUnmarshal(
|
||
|
|
buf,
|
||
|
|
tag_name,
|
||
|
|
self._entry.GetVarName(var_name),
|
||
|
|
self._entry.GetVarLen(var_name),
|
||
|
|
)
|
||
|
|
|
||
|
|
code += ["++%(var)s->%(name)s_length;" % translate]
|
||
|
|
|
||
|
|
return code
|
||
|
|
|
||
|
|
def CodeMarshal(self, buf, tag_name, var_name, _var_len):
|
||
|
|
code = ["{", " int i;", " for (i = 0; i < %(var)s->%(name)s_length; ++i) {"]
|
||
|
|
|
||
|
|
self._index = "i"
|
||
|
|
code += self._entry.CodeMarshal(
|
||
|
|
buf,
|
||
|
|
tag_name,
|
||
|
|
self._entry.GetVarName(var_name),
|
||
|
|
self._entry.GetVarLen(var_name),
|
||
|
|
)
|
||
|
|
code += [" }", "}"]
|
||
|
|
|
||
|
|
code = "\n".join(code) % self.GetTranslation({"var": var_name})
|
||
|
|
|
||
|
|
return code.split("\n")
|
||
|
|
|
||
|
|
def CodeClear(self, structname):
|
||
|
|
translate = self.GetTranslation({"structname": structname})
|
||
|
|
codearrayfree = self._entry.CodeArrayFree(
|
||
|
|
"%(structname)s->%(name)s_data[i]"
|
||
|
|
% self.GetTranslation({"structname": structname})
|
||
|
|
)
|
||
|
|
|
||
|
|
code = ["if (%(structname)s->%(name)s_set == 1) {"]
|
||
|
|
|
||
|
|
if codearrayfree:
|
||
|
|
code += [
|
||
|
|
" int i;",
|
||
|
|
" for (i = 0; i < %(structname)s->%(name)s_length; ++i) {",
|
||
|
|
]
|
||
|
|
|
||
|
|
code = TranslateList(code, translate)
|
||
|
|
|
||
|
|
if codearrayfree:
|
||
|
|
code += [" " + x for x in codearrayfree]
|
||
|
|
code += [" }"]
|
||
|
|
|
||
|
|
code += TranslateList(
|
||
|
|
[
|
||
|
|
" free(%(structname)s->%(name)s_data);",
|
||
|
|
" %(structname)s->%(name)s_data = NULL;",
|
||
|
|
" %(structname)s->%(name)s_set = 0;",
|
||
|
|
" %(structname)s->%(name)s_length = 0;",
|
||
|
|
" %(structname)s->%(name)s_num_allocated = 0;",
|
||
|
|
"}",
|
||
|
|
],
|
||
|
|
translate,
|
||
|
|
)
|
||
|
|
|
||
|
|
return code
|
||
|
|
|
||
|
|
def CodeInitialize(self, name):
|
||
|
|
code = [
|
||
|
|
"%s->%s_data = NULL;" % (name, self._name),
|
||
|
|
"%s->%s_length = 0;" % (name, self._name),
|
||
|
|
"%s->%s_num_allocated = 0;" % (name, self._name),
|
||
|
|
]
|
||
|
|
return code
|
||
|
|
|
||
|
|
def CodeFree(self, structname):
|
||
|
|
code = self.CodeClear(structname)
|
||
|
|
|
||
|
|
code += TranslateList(
|
||
|
|
["free(%(structname)s->%(name)s_data);"],
|
||
|
|
self.GetTranslation({"structname": structname}),
|
||
|
|
)
|
||
|
|
|
||
|
|
return code
|
||
|
|
|
||
|
|
def Declaration(self):
|
||
|
|
dcl = [
|
||
|
|
"%s *%s_data;" % (self._ctype, self._name),
|
||
|
|
"int %s_length;" % self._name,
|
||
|
|
"int %s_num_allocated;" % self._name,
|
||
|
|
]
|
||
|
|
|
||
|
|
return dcl
|
||
|
|
|
||
|
|
|
||
|
|
def NormalizeLine(line):
|
||
|
|
|
||
|
|
line = CPPCOMMENT_RE.sub("", line)
|
||
|
|
line = line.strip()
|
||
|
|
line = WHITESPACE_RE.sub(" ", line)
|
||
|
|
|
||
|
|
return line
|
||
|
|
|
||
|
|
|
||
|
|
ENTRY_NAME_RE = re.compile(r"(?P<name>[^\[\]]+)(\[(?P<fixed_length>.*)\])?")
|
||
|
|
ENTRY_TAG_NUMBER_RE = re.compile(r"(0x)?\d+", re.I)
|
||
|
|
|
||
|
|
|
||
|
|
def ProcessOneEntry(factory, newstruct, entry):
|
||
|
|
optional = False
|
||
|
|
array = False
|
||
|
|
entry_type = ""
|
||
|
|
name = ""
|
||
|
|
tag = ""
|
||
|
|
tag_set = None
|
||
|
|
separator = ""
|
||
|
|
fixed_length = ""
|
||
|
|
|
||
|
|
for token in entry.split(" "):
|
||
|
|
if not entry_type:
|
||
|
|
if not optional and token == "optional":
|
||
|
|
optional = True
|
||
|
|
continue
|
||
|
|
|
||
|
|
if not array and token == "array":
|
||
|
|
array = True
|
||
|
|
continue
|
||
|
|
|
||
|
|
if not entry_type:
|
||
|
|
entry_type = token
|
||
|
|
continue
|
||
|
|
|
||
|
|
if not name:
|
||
|
|
res = ENTRY_NAME_RE.match(token)
|
||
|
|
if not res:
|
||
|
|
raise RpcGenError(
|
||
|
|
r"""Cannot parse name: "%s" around line %d""" % (entry, LINE_COUNT)
|
||
|
|
)
|
||
|
|
name = res.group("name")
|
||
|
|
fixed_length = res.group("fixed_length")
|
||
|
|
continue
|
||
|
|
|
||
|
|
if not separator:
|
||
|
|
separator = token
|
||
|
|
if separator != "=":
|
||
|
|
raise RpcGenError(
|
||
|
|
r'''Expected "=" after name "%s" got "%s"''' % (name, token)
|
||
|
|
)
|
||
|
|
continue
|
||
|
|
|
||
|
|
if not tag_set:
|
||
|
|
tag_set = 1
|
||
|
|
if not ENTRY_TAG_NUMBER_RE.match(token):
|
||
|
|
raise RpcGenError(r'''Expected tag number: "%s"''' % (entry))
|
||
|
|
tag = int(token, 0)
|
||
|
|
continue
|
||
|
|
|
||
|
|
raise RpcGenError(r'''Cannot parse "%s"''' % (entry))
|
||
|
|
|
||
|
|
if not tag_set:
|
||
|
|
raise RpcGenError(r'''Need tag number: "%s"''' % (entry))
|
||
|
|
|
||
|
|
# Create the right entry
|
||
|
|
if entry_type == "bytes":
|
||
|
|
if fixed_length:
|
||
|
|
newentry = factory.EntryBytes(entry_type, name, tag, fixed_length)
|
||
|
|
else:
|
||
|
|
newentry = factory.EntryVarBytes(entry_type, name, tag)
|
||
|
|
elif entry_type == "int" and not fixed_length:
|
||
|
|
newentry = factory.EntryInt(entry_type, name, tag)
|
||
|
|
elif entry_type == "int64" and not fixed_length:
|
||
|
|
newentry = factory.EntryInt(entry_type, name, tag, bits=64)
|
||
|
|
elif entry_type == "string" and not fixed_length:
|
||
|
|
newentry = factory.EntryString(entry_type, name, tag)
|
||
|
|
else:
|
||
|
|
res = STRUCT_REF_RE.match(entry_type)
|
||
|
|
if res:
|
||
|
|
# References another struct defined in our file
|
||
|
|
newentry = factory.EntryStruct(entry_type, name, tag, res.group("name"))
|
||
|
|
else:
|
||
|
|
raise RpcGenError('Bad type: "%s" in "%s"' % (entry_type, entry))
|
||
|
|
|
||
|
|
structs = []
|
||
|
|
|
||
|
|
if optional:
|
||
|
|
newentry.MakeOptional()
|
||
|
|
if array:
|
||
|
|
newentry.MakeArray()
|
||
|
|
|
||
|
|
newentry.SetStruct(newstruct)
|
||
|
|
newentry.SetLineCount(LINE_COUNT)
|
||
|
|
newentry.Verify()
|
||
|
|
|
||
|
|
if array:
|
||
|
|
# We need to encapsulate this entry into a struct
|
||
|
|
newentry = factory.EntryArray(newentry)
|
||
|
|
newentry.SetStruct(newstruct)
|
||
|
|
newentry.SetLineCount(LINE_COUNT)
|
||
|
|
newentry.MakeArray()
|
||
|
|
|
||
|
|
newstruct.AddEntry(newentry)
|
||
|
|
|
||
|
|
return structs
|
||
|
|
|
||
|
|
|
||
|
|
def ProcessStruct(factory, data):
|
||
|
|
tokens = data.split(" ")
|
||
|
|
|
||
|
|
# First three tokens are: 'struct' 'name' '{'
|
||
|
|
newstruct = factory.Struct(tokens[1])
|
||
|
|
|
||
|
|
inside = " ".join(tokens[3:-1])
|
||
|
|
|
||
|
|
tokens = inside.split(";")
|
||
|
|
|
||
|
|
structs = []
|
||
|
|
|
||
|
|
for entry in tokens:
|
||
|
|
entry = NormalizeLine(entry)
|
||
|
|
if not entry:
|
||
|
|
continue
|
||
|
|
|
||
|
|
# It's possible that new structs get defined in here
|
||
|
|
structs.extend(ProcessOneEntry(factory, newstruct, entry))
|
||
|
|
|
||
|
|
structs.append(newstruct)
|
||
|
|
return structs
|
||
|
|
|
||
|
|
|
||
|
|
C_COMMENT_START = "/*"
|
||
|
|
C_COMMENT_END = "*/"
|
||
|
|
|
||
|
|
C_COMMENT_START_RE = re.compile(re.escape(C_COMMENT_START))
|
||
|
|
C_COMMENT_END_RE = re.compile(re.escape(C_COMMENT_END))
|
||
|
|
|
||
|
|
C_COMMENT_START_SUB_RE = re.compile(r"%s.*$" % (re.escape(C_COMMENT_START)))
|
||
|
|
C_COMMENT_END_SUB_RE = re.compile(r"%s.*$" % (re.escape(C_COMMENT_END)))
|
||
|
|
|
||
|
|
C_MULTILINE_COMMENT_SUB_RE = re.compile(
|
||
|
|
r"%s.*?%s" % (re.escape(C_COMMENT_START), re.escape(C_COMMENT_END))
|
||
|
|
)
|
||
|
|
CPP_CONDITIONAL_BLOCK_RE = re.compile(r"#(if( |def)|endif)")
|
||
|
|
INCLUDE_RE = re.compile(r'#include (".+"|<.+>)')
|
||
|
|
|
||
|
|
|
||
|
|
def GetNextStruct(filep):
|
||
|
|
global CPP_DIRECT
|
||
|
|
global LINE_COUNT
|
||
|
|
|
||
|
|
got_struct = False
|
||
|
|
have_c_comment = False
|
||
|
|
|
||
|
|
data = ""
|
||
|
|
|
||
|
|
while True:
|
||
|
|
line = filep.readline()
|
||
|
|
if not line:
|
||
|
|
break
|
||
|
|
|
||
|
|
LINE_COUNT += 1
|
||
|
|
line = line[:-1]
|
||
|
|
|
||
|
|
if not have_c_comment and C_COMMENT_START_RE.search(line):
|
||
|
|
if C_MULTILINE_COMMENT_SUB_RE.search(line):
|
||
|
|
line = C_MULTILINE_COMMENT_SUB_RE.sub("", line)
|
||
|
|
else:
|
||
|
|
line = C_COMMENT_START_SUB_RE.sub("", line)
|
||
|
|
have_c_comment = True
|
||
|
|
|
||
|
|
if have_c_comment:
|
||
|
|
if not C_COMMENT_END_RE.search(line):
|
||
|
|
continue
|
||
|
|
have_c_comment = False
|
||
|
|
line = C_COMMENT_END_SUB_RE.sub("", line)
|
||
|
|
|
||
|
|
line = NormalizeLine(line)
|
||
|
|
|
||
|
|
if not line:
|
||
|
|
continue
|
||
|
|
|
||
|
|
if not got_struct:
|
||
|
|
if INCLUDE_RE.match(line):
|
||
|
|
CPP_DIRECT.append(line)
|
||
|
|
elif CPP_CONDITIONAL_BLOCK_RE.match(line):
|
||
|
|
CPP_DIRECT.append(line)
|
||
|
|
elif PREPROCESSOR_DEF_RE.match(line):
|
||
|
|
HEADER_DIRECT.append(line)
|
||
|
|
elif not STRUCT_DEF_RE.match(line):
|
||
|
|
raise RpcGenError("Missing struct on line %d: %s" % (LINE_COUNT, line))
|
||
|
|
else:
|
||
|
|
got_struct = True
|
||
|
|
data += line
|
||
|
|
continue
|
||
|
|
|
||
|
|
# We are inside the struct
|
||
|
|
tokens = line.split("}")
|
||
|
|
if len(tokens) == 1:
|
||
|
|
data += " " + line
|
||
|
|
continue
|
||
|
|
|
||
|
|
if tokens[1]:
|
||
|
|
raise RpcGenError("Trailing garbage after struct on line %d" % LINE_COUNT)
|
||
|
|
|
||
|
|
# We found the end of the struct
|
||
|
|
data += " %s}" % tokens[0]
|
||
|
|
break
|
||
|
|
|
||
|
|
# Remove any comments, that might be in there
|
||
|
|
data = re.sub(r"/\*.*\*/", "", data)
|
||
|
|
|
||
|
|
return data
|
||
|
|
|
||
|
|
|
||
|
|
def Parse(factory, filep):
|
||
|
|
"""
|
||
|
|
Parses the input file and returns C code and corresponding header file.
|
||
|
|
"""
|
||
|
|
|
||
|
|
entities = []
|
||
|
|
|
||
|
|
while 1:
|
||
|
|
# Just gets the whole struct nicely formatted
|
||
|
|
data = GetNextStruct(filep)
|
||
|
|
|
||
|
|
if not data:
|
||
|
|
break
|
||
|
|
|
||
|
|
entities.extend(ProcessStruct(factory, data))
|
||
|
|
|
||
|
|
return entities
|
||
|
|
|
||
|
|
|
||
|
|
class CCodeGenerator(object):
|
||
|
|
def __init__(self):
|
||
|
|
pass
|
||
|
|
|
||
|
|
@staticmethod
|
||
|
|
def GuardName(name):
|
||
|
|
# Use the complete provided path to the input file, with all
|
||
|
|
# non-identifier characters replaced with underscores, to
|
||
|
|
# reduce the chance of a collision between guard macros.
|
||
|
|
return "EVENT_RPCOUT_%s_" % (NONIDENT_RE.sub("_", name).upper())
|
||
|
|
|
||
|
|
def HeaderPreamble(self, name):
|
||
|
|
guard = self.GuardName(name)
|
||
|
|
pre = """
|
||
|
|
/*
|
||
|
|
* Automatically generated from %s
|
||
|
|
*/
|
||
|
|
|
||
|
|
#ifndef %s
|
||
|
|
#define %s
|
||
|
|
|
||
|
|
""" % (
|
||
|
|
name,
|
||
|
|
guard,
|
||
|
|
guard,
|
||
|
|
)
|
||
|
|
|
||
|
|
if HEADER_DIRECT:
|
||
|
|
for statement in HEADER_DIRECT:
|
||
|
|
pre += "%s\n" % statement
|
||
|
|
pre += "\n"
|
||
|
|
|
||
|
|
pre += """
|
||
|
|
#include <event2/util.h> /* for ev_uint*_t */
|
||
|
|
#include <event2/rpc.h>
|
||
|
|
"""
|
||
|
|
|
||
|
|
return pre
|
||
|
|
|
||
|
|
def HeaderPostamble(self, name):
|
||
|
|
guard = self.GuardName(name)
|
||
|
|
return "#endif /* %s */" % (guard)
|
||
|
|
|
||
|
|
@staticmethod
|
||
|
|
def BodyPreamble(name, header_file):
|
||
|
|
global _NAME
|
||
|
|
global _VERSION
|
||
|
|
|
||
|
|
slash = header_file.rfind("/")
|
||
|
|
if slash != -1:
|
||
|
|
header_file = header_file[slash + 1 :]
|
||
|
|
|
||
|
|
pre = """
|
||
|
|
/*
|
||
|
|
* Automatically generated from %(name)s
|
||
|
|
* by %(script_name)s/%(script_version)s. DO NOT EDIT THIS FILE.
|
||
|
|
*/
|
||
|
|
|
||
|
|
#include <stdlib.h>
|
||
|
|
#include <string.h>
|
||
|
|
#include <assert.h>
|
||
|
|
#include <event2/event-config.h>
|
||
|
|
#include <event2/event.h>
|
||
|
|
#include <event2/buffer.h>
|
||
|
|
#include <event2/tag.h>
|
||
|
|
|
||
|
|
#if defined(EVENT__HAVE___func__)
|
||
|
|
# ifndef __func__
|
||
|
|
# define __func__ __func__
|
||
|
|
# endif
|
||
|
|
#elif defined(EVENT__HAVE___FUNCTION__)
|
||
|
|
# define __func__ __FUNCTION__
|
||
|
|
#else
|
||
|
|
# define __func__ __FILE__
|
||
|
|
#endif
|
||
|
|
|
||
|
|
""" % {
|
||
|
|
"name": name,
|
||
|
|
"script_name": _NAME,
|
||
|
|
"script_version": _VERSION,
|
||
|
|
}
|
||
|
|
|
||
|
|
for statement in CPP_DIRECT:
|
||
|
|
pre += "%s\n" % statement
|
||
|
|
|
||
|
|
pre += '\n#include "%s"\n\n' % header_file
|
||
|
|
|
||
|
|
pre += "void event_warn(const char *fmt, ...);\n"
|
||
|
|
pre += "void event_warnx(const char *fmt, ...);\n\n"
|
||
|
|
|
||
|
|
return pre
|
||
|
|
|
||
|
|
@staticmethod
|
||
|
|
def HeaderFilename(filename):
|
||
|
|
return ".".join(filename.split(".")[:-1]) + ".h"
|
||
|
|
|
||
|
|
@staticmethod
|
||
|
|
def CodeFilename(filename):
|
||
|
|
return ".".join(filename.split(".")[:-1]) + ".gen.c"
|
||
|
|
|
||
|
|
@staticmethod
|
||
|
|
def Struct(name):
|
||
|
|
return StructCCode(name)
|
||
|
|
|
||
|
|
@staticmethod
|
||
|
|
def EntryBytes(entry_type, name, tag, fixed_length):
|
||
|
|
return EntryBytes(entry_type, name, tag, fixed_length)
|
||
|
|
|
||
|
|
@staticmethod
|
||
|
|
def EntryVarBytes(entry_type, name, tag):
|
||
|
|
return EntryVarBytes(entry_type, name, tag)
|
||
|
|
|
||
|
|
@staticmethod
|
||
|
|
def EntryInt(entry_type, name, tag, bits=32):
|
||
|
|
return EntryInt(entry_type, name, tag, bits)
|
||
|
|
|
||
|
|
@staticmethod
|
||
|
|
def EntryString(entry_type, name, tag):
|
||
|
|
return EntryString(entry_type, name, tag)
|
||
|
|
|
||
|
|
@staticmethod
|
||
|
|
def EntryStruct(entry_type, name, tag, struct_name):
|
||
|
|
return EntryStruct(entry_type, name, tag, struct_name)
|
||
|
|
|
||
|
|
@staticmethod
|
||
|
|
def EntryArray(entry):
|
||
|
|
return EntryArray(entry)
|
||
|
|
|
||
|
|
|
||
|
|
class CommandLine(object):
|
||
|
|
def __init__(self, argv=None):
|
||
|
|
"""Initialize a command-line to launch event_rpcgen, as if
|
||
|
|
from a command-line with CommandLine(sys.argv). If you're
|
||
|
|
calling this directly, remember to provide a dummy value
|
||
|
|
for sys.argv[0]
|
||
|
|
"""
|
||
|
|
global QUIETLY
|
||
|
|
|
||
|
|
self.filename = None
|
||
|
|
self.header_file = None
|
||
|
|
self.impl_file = None
|
||
|
|
self.factory = CCodeGenerator()
|
||
|
|
|
||
|
|
parser = argparse.ArgumentParser(
|
||
|
|
usage="%(prog)s [options] rpc-file [[h-file] c-file]"
|
||
|
|
)
|
||
|
|
parser.add_argument("--quiet", action="store_true", default=False)
|
||
|
|
parser.add_argument("rpc_file", type=argparse.FileType("r"))
|
||
|
|
|
||
|
|
args, extra_args = parser.parse_known_args(args=argv)
|
||
|
|
|
||
|
|
QUIETLY = args.quiet
|
||
|
|
|
||
|
|
if extra_args:
|
||
|
|
if len(extra_args) == 1:
|
||
|
|
self.impl_file = extra_args[0].replace("\\", "/")
|
||
|
|
elif len(extra_args) == 2:
|
||
|
|
self.header_file = extra_args[0].replace("\\", "/")
|
||
|
|
self.impl_file = extra_args[1].replace("\\", "/")
|
||
|
|
else:
|
||
|
|
parser.error("Spurious arguments provided")
|
||
|
|
|
||
|
|
self.rpc_file = args.rpc_file
|
||
|
|
|
||
|
|
if not self.impl_file:
|
||
|
|
self.impl_file = self.factory.CodeFilename(self.rpc_file.name)
|
||
|
|
|
||
|
|
if not self.header_file:
|
||
|
|
self.header_file = self.factory.HeaderFilename(self.impl_file)
|
||
|
|
|
||
|
|
if not self.impl_file.endswith(".c"):
|
||
|
|
parser.error("can only generate C implementation files")
|
||
|
|
if not self.header_file.endswith(".h"):
|
||
|
|
parser.error("can only generate C header files")
|
||
|
|
|
||
|
|
def run(self):
|
||
|
|
filename = self.rpc_file.name
|
||
|
|
header_file = self.header_file
|
||
|
|
impl_file = self.impl_file
|
||
|
|
factory = self.factory
|
||
|
|
|
||
|
|
declare('Reading "%s"' % filename)
|
||
|
|
|
||
|
|
with self.rpc_file:
|
||
|
|
entities = Parse(factory, self.rpc_file)
|
||
|
|
|
||
|
|
declare('... creating "%s"' % header_file)
|
||
|
|
with open(header_file, "w") as header_fp:
|
||
|
|
header_fp.write(factory.HeaderPreamble(filename))
|
||
|
|
|
||
|
|
# Create forward declarations: allows other structs to reference
|
||
|
|
# each other
|
||
|
|
for entry in entities:
|
||
|
|
entry.PrintForwardDeclaration(header_fp)
|
||
|
|
header_fp.write("\n")
|
||
|
|
|
||
|
|
for entry in entities:
|
||
|
|
entry.PrintTags(header_fp)
|
||
|
|
entry.PrintDeclaration(header_fp)
|
||
|
|
header_fp.write(factory.HeaderPostamble(filename))
|
||
|
|
|
||
|
|
declare('... creating "%s"' % impl_file)
|
||
|
|
with open(impl_file, "w") as impl_fp:
|
||
|
|
impl_fp.write(factory.BodyPreamble(filename, header_file))
|
||
|
|
for entry in entities:
|
||
|
|
entry.PrintCode(impl_fp)
|
||
|
|
|
||
|
|
|
||
|
|
def main(argv=None):
|
||
|
|
try:
|
||
|
|
CommandLine(argv=argv).run()
|
||
|
|
return 0
|
||
|
|
except RpcGenError as e:
|
||
|
|
sys.stderr.write(e)
|
||
|
|
except EnvironmentError as e:
|
||
|
|
if e.filename and e.strerror:
|
||
|
|
sys.stderr.write("%s: %s" % (e.filename, e.strerror))
|
||
|
|
elif e.strerror:
|
||
|
|
sys.stderr.write(e.strerror)
|
||
|
|
else:
|
||
|
|
raise
|
||
|
|
return 1
|
||
|
|
|
||
|
|
|
||
|
|
if __name__ == "__main__":
|
||
|
|
sys.exit(main(argv=sys.argv[1:]))
|