Ejemplo n.º 1
0
    def save_ureport(self, db, db_report, ureport, flush=False, count=1):
        crashframe = ureport["stacktrace"][0]
        if "special_function" in crashframe:
            crashfn = "<{0}>".format(crashframe["special_function"])
        else:
            crashfn = crashframe["function_name"]

        if not db_report.errname:
            db_report.errname = ureport["exception_name"]
        elif ureport["exception_name"] and (ureport["exception_name"][0] in ascii_uppercase
                                            or "." in ureport["exception_name"]):
            # Only overwrite errname if the new one begins with an uppercase
            # letter or contains a ".", i.e. is probably a valid exception type
            db_report.errname = ureport["exception_name"]

        db_reportexe = get_reportexe(db, db_report, crashframe["file_name"])
        if db_reportexe is None:
            db_reportexe = ReportExecutable()
            db_reportexe.report = db_report
            db_reportexe.path = crashframe["file_name"]
            db_reportexe.count = 0
            db.session.add(db_reportexe)

        db_reportexe.count += count

        bthash = self._hash_traceback(ureport["stacktrace"])

        if not db_report.backtraces:
            db_backtrace = ReportBacktrace()
            db_backtrace.report = db_report
            db_backtrace.crashfn = crashfn
            db.session.add(db_backtrace)

            db_bthash = ReportBtHash()
            db_bthash.type = "NAMES"
            db_bthash.hash = bthash
            db_bthash.backtrace = db_backtrace

            db_thread = ReportBtThread()
            db_thread.backtrace = db_backtrace
            db_thread.crashthread = True
            db.session.add(db_thread)

            new_symbols = {}
            new_symbolsources = {}

            i = 0
            for frame in ureport["stacktrace"]:
                i += 1

                if "special_function" in frame:
                    function_name = "<{0}>".format(frame["special_function"])
                else:
                    function_name = frame["function_name"]

                if "special_file" in frame:
                    file_name = "<{0}>".format(frame["special_file"])
                else:
                    file_name = frame["file_name"]

                norm_path = get_libname(file_name)

                db_symbol = get_symbol_by_name_path(db, function_name,
                                                    norm_path)
                if db_symbol is None:
                    key = (function_name, norm_path)
                    if key in new_symbols:
                        db_symbol = new_symbols[key]
                    else:
                        db_symbol = Symbol()
                        db_symbol.name = function_name
                        db_symbol.normalized_path = norm_path
                        db.session.add(db_symbol)
                        new_symbols[key] = db_symbol

                db_symbolsource = get_symbolsource(db, db_symbol,
                                                   file_name,
                                                   frame["file_line"])
                if db_symbolsource is None:
                    key = (function_name, file_name,
                           frame["file_line"])
                    if key in new_symbolsources:
                        db_symbolsource = new_symbolsources[key]
                    else:
                        db_symbolsource = SymbolSource()
                        db_symbolsource.path = file_name
                        db_symbolsource.offset = frame["file_line"]
                        db_symbolsource.source_path = file_name
                        db_symbolsource.symbol = db_symbol
                        if "line_contents" in frame:
                            db_symbolsource.srcline = frame["line_contents"]
                        if "file_line" in frame:
                            db_symbolsource.line_number = frame["file_line"]
                        db.session.add(db_symbolsource)
                        new_symbolsources[key] = db_symbolsource

                db_frame = ReportBtFrame()
                db_frame.order = i
                db_frame.inlined = False
                db_frame.symbolsource = db_symbolsource
                db_frame.thread = db_thread
                db.session.add(db_frame)

        if flush:
            db.session.flush()
Ejemplo n.º 2
0
    def save_ureport(self, db, db_report, ureport, flush=False, count=1):
        # at the moment we only send crash thread
        # we may need to identify the crash thread in the future
        crashthread = ureport["threads"][0]

        crashfn = None
        for frame in crashthread["frames"]:
            if not frame["is_exception"]:
                crashfn = frame["name"]
                break

        if crashfn is not None and "." in crashfn:
            crashfn = crashfn.rsplit(".", 1)[1]

        errname = None
        for frame in crashthread["frames"]:
            if frame["is_exception"]:
                errname = frame["name"]
                break

        if "." in errname:
            errname = errname.rsplit(".", 1)[1]

        db_report.errname = errname

        bthash = self._hash_backtrace(ureport["threads"])

        if not db_report.backtraces:
            db_backtrace = ReportBacktrace()
            db_backtrace.report = db_report
            db_backtrace.crashfn = crashfn
            db.session.add(db_backtrace)

            db_bthash = ReportBtHash()
            db_bthash.type = "NAMES"
            db_bthash.hash = bthash
            db_bthash.backtrace = db_backtrace

            new_symbols = {}
            new_symbolsources = {}

            j = 0
            for thread in ureport["threads"]:
                j += 1

                db_thread = ReportBtThread()
                db_thread.backtrace = db_backtrace
                db_thread.crashthread = thread == crashthread
                db_thread.number = j
                db.session.add(db_thread)

                i = 0
                for frame in thread["frames"]:
                    i += 1

                    function_name = frame["name"]

                    if "class_path" in frame:
                        file_name = frame["class_path"]
                    elif frame["is_exception"]:
                        file_name = JavaProblem.exception
                    elif frame["is_native"]:
                        file_name = JavaProblem.native
                    else:
                        file_name = JavaProblem.unknown

                    if "file_line" in frame:
                        file_line = frame["file_line"]
                    else:
                        file_line = 0

                    db_symbol = get_symbol_by_name_path(
                        db, function_name, file_name)
                    if db_symbol is None:
                        key = (function_name, file_name)
                        if key in new_symbols:
                            db_symbol = new_symbols[key]
                        else:
                            db_symbol = Symbol()
                            db_symbol.name = function_name
                            db_symbol.normalized_path = file_name
                            db.session.add(db_symbol)
                            new_symbols[key] = db_symbol

                    db_symbolsource = get_symbolsource(db, db_symbol,
                                                       file_name, file_line)
                    if db_symbolsource is None:
                        key = (function_name, file_name, file_line)
                        if key in new_symbolsources:
                            db_symbolsource = new_symbolsources[key]
                        else:
                            db_symbolsource = SymbolSource()
                            db_symbolsource.path = file_name
                            db_symbolsource.offset = file_line
                            if "file_name" in frame:
                                db_symbolsource.source_path = frame[
                                    "file_name"]
                            db_symbolsource.line_number = file_line
                            db_symbolsource.symbol = db_symbol
                            db.session.add(db_symbolsource)
                            new_symbolsources[key] = db_symbolsource

                    db_frame = ReportBtFrame()
                    db_frame.order = i
                    db_frame.inlined = False
                    db_frame.symbolsource = db_symbolsource
                    db_frame.thread = db_thread
                    db.session.add(db_frame)

        if flush:
            db.session.flush()
Ejemplo n.º 3
0
    def save_ureport(self, db, db_report, ureport, flush=False, count=1):
        bthash1 = self._hash_koops(ureport["frames"], skip_unreliable=False)
        bthash2 = self._hash_koops(ureport["frames"], skip_unreliable=True)

        if len(db_report.backtraces) < 1:
            db_backtrace = ReportBacktrace()
            db_backtrace.report = db_report
            db.session.add(db_backtrace)

            db_thread = ReportBtThread()
            db_thread.backtrace = db_backtrace
            db_thread.crashthread = True
            db.session.add(db_thread)

            db_bthash1 = ReportBtHash()
            db_bthash1.backtrace = db_backtrace
            db_bthash1.hash = bthash1
            db_bthash1.type = "NAMES"
            db.session.add(db_bthash1)

            if bthash2 is not None and bthash1 != bthash2:
                db_bthash2 = ReportBtHash()
                db_bthash2.backtrace = db_backtrace
                db_bthash2.hash = bthash2
                db_bthash2.type = "NAMES"
                db.session.add(db_bthash2)

            new_symbols = {}
            new_symbolsources = {}

            i = 0
            for frame in ureport["frames"]:
                # OK, this is totally ugly.
                # Frames may contain inlined functions, that would normally
                # require shifting all frames by 1 and inserting a new one.
                # There is no way to do this efficiently with SQL Alchemy
                # (you need to go one by one and flush after each) so
                # creating a space for additional frames is a huge speed
                # optimization.
                i += 10

                # nah, another hack, deals with wrong parsing
                if frame["function_name"].startswith("0x"):
                    continue

                if not "module_name" in frame:
                    module = "vmlinux"
                else:
                    module = frame["module_name"]

                db_symbol = get_symbol_by_name_path(db, frame["function_name"],
                                                    module)
                if db_symbol is None:
                    key = (frame["function_name"], module)
                    if key in new_symbols:
                        db_symbol = new_symbols[key]
                    else:
                        db_symbol = Symbol()
                        db_symbol.name = frame["function_name"]
                        db_symbol.normalized_path = module
                        db.session.add(db_symbol)
                        new_symbols[key] = db_symbol

                # this doesn't work well. on 64bit, kernel maps to
                # the end of address space (64bit unsigned), but in
                # postgres bigint is 64bit signed and can't save
                # the value - let's just map it to signed
                if frame["address"] >= (1 << 63):
                    address = frame["address"] - (1 << 64)
                else:
                    address = frame["address"]

                db_symbolsource = get_ssource_by_bpo(db, ureport["version"],
                                                     module, address)
                if db_symbolsource is None:
                    key = (ureport["version"], module, address)
                    if key in new_symbolsources:
                        db_symbolsource = new_symbolsources[key]
                    else:
                        db_symbolsource = SymbolSource()
                        db_symbolsource.path = module
                        db_symbolsource.offset = address
                        db_symbolsource.func_offset = frame["function_offset"]
                        db_symbolsource.symbol = db_symbol
                        db_symbolsource.build_id = ureport["version"]
                        db.session.add(db_symbolsource)
                        new_symbolsources[key] = db_symbolsource

                db_frame = ReportBtFrame()
                db_frame.thread = db_thread
                db_frame.order = i
                db_frame.symbolsource = db_symbolsource
                db_frame.inlined = False
                db_frame.reliable = frame["reliable"]
                db.session.add(db_frame)

            for taintflag in ureport["taint_flags"]:
                db_taintflag = get_taint_flag_by_ureport_name(db, taintflag)
                if db_taintflag is None:
                    self.log_warn("Skipping unsupported taint flag '{0}'"
                                  .format(taintflag))
                    continue

                db_bttaintflag = ReportBtTaintFlag()
                db_bttaintflag.backtrace = db_backtrace
                db_bttaintflag.taintflag = db_taintflag
                db.session.add(db_bttaintflag)

            if "modules" in ureport:
                new_modules = {}

                # use set() to remove duplicates
                for module in set(ureport["modules"]):
                    idx = module.find("(")
                    if idx >= 0:
                        module = module[:idx]

                    db_module = get_kernelmodule_by_name(db, module)
                    if db_module is None:
                        if module in new_modules:
                            db_module = new_modules[module]
                        else:
                            db_module = KernelModule()
                            db_module.name = module
                            db.session.add(db_module)
                            new_modules[module] = db_module

                    db_btmodule = ReportBtKernelModule()
                    db_btmodule.kernelmodule = db_module
                    db_btmodule.backtrace = db_backtrace
                    db.session.add(db_btmodule)

            # do not overwrite an existing oops
            if not db_report.has_lob("oops"):
                # do not append here, but create a new dict
                # we only want save_ureport_post_flush process the most
                # recently saved report
                self.add_lob = {db_report: ureport["raw_oops"].encode("utf-8")}

        if flush:
            db.session.flush()
Ejemplo n.º 4
0
    def save_ureport(self, db, db_report, ureport, flush=False, count=1):
        db_report.errname = str(ureport["signal"])

        db_reportexe = get_reportexe(db, db_report, ureport["executable"])
        if db_reportexe is None:
            db_reportexe = ReportExecutable()
            db_reportexe.path = ureport["executable"]
            db_reportexe.report = db_report
            db_reportexe.count = 0
            db.session.add(db_reportexe)

        db_reportexe.count += count

        bthashes = self._hash_backtrace(ureport["stacktrace"])
        if not bthashes:
            raise FafError("Unable to get backtrace hash")

        if not db_report.backtraces:
            new_symbols = {}
            new_symbolsources = {}

            db_backtrace = ReportBacktrace()
            db_backtrace.report = db_report
            db.session.add(db_backtrace)

            for bthash in bthashes:
                db_bthash = ReportBtHash()
                db_bthash.backtrace = db_backtrace
                db_bthash.type = "NAMES"
                db_bthash.hash = bthash
                db.session.add(db_bthash)

            tid = 0
            for thread in ureport["stacktrace"]:
                tid += 1

                crash = "crash_thread" in thread and thread["crash_thread"]
                db_thread = ReportBtThread()
                db_thread.backtrace = db_backtrace
                db_thread.number = tid
                db_thread.crashthread = crash
                db.session.add(db_thread)

                fid = 0
                for frame in thread["frames"]:
                    # OK, this is totally ugly.
                    # Frames may contain inlined functions, that would normally
                    # require shifting all frames by 1 and inserting a new one.
                    # There is no way to do this efficiently with SQL Alchemy
                    # (you need to go one by one and flush after each) so
                    # creating a space for additional frames is a huge speed
                    # optimization.
                    fid += 10

                    if "build_id" in frame:
                        build_id = frame["build_id"]
                    else:
                        build_id = None

                    if "fingerprint" in frame:
                        fingerprint = frame["fingerprint"]
                    else:
                        fingerprint = None

                    path = os.path.abspath(frame["file_name"])
                    offset = frame["build_id_offset"]

                    db_symbol = None
                    if "function_name" in frame:
                        norm_path = get_libname(path)

                        db_symbol = \
                            get_symbol_by_name_path(db,
                                                    frame["function_name"],
                                                    norm_path)
                        if db_symbol is None:
                            key = (frame["function_name"], norm_path)
                            if key in new_symbols:
                                db_symbol = new_symbols[key]
                            else:
                                db_symbol = Symbol()
                                db_symbol.name = frame["function_name"]
                                db_symbol.normalized_path = norm_path
                                db.session.add(db_symbol)
                                new_symbols[key] = db_symbol

                    db_symbolsource = get_ssource_by_bpo(
                        db, build_id, path, offset)

                    if db_symbolsource is None:
                        key = (build_id, path, offset)

                        if key in new_symbolsources:
                            db_symbolsource = new_symbolsources[key]
                        else:
                            db_symbolsource = SymbolSource()
                            db_symbolsource.symbol = db_symbol
                            db_symbolsource.build_id = build_id
                            db_symbolsource.path = path
                            db_symbolsource.offset = offset
                            db_symbolsource.hash = fingerprint
                            db.session.add(db_symbolsource)
                            new_symbolsources[key] = db_symbolsource

                    db_frame = ReportBtFrame()
                    db_frame.thread = db_thread
                    db_frame.order = fid
                    db_frame.symbolsource = db_symbolsource
                    db_frame.inlined = False
                    db.session.add(db_frame)

        if flush:
            db.session.flush()