mirror of
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503 lines
16 KiB
Python
503 lines
16 KiB
Python
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#!/usr/bin/env python3
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#
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# Copyright (C) 2011-2019 Red Hat, Inc.
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#
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# This library is free software; you can redistribute it and/or
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# modify it under the terms of the GNU Lesser General Public
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# License as published by the Free Software Foundation; either
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# version 2.1 of the License, or (at your option) any later version.
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#
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# This library is distributed in the hope that it will be useful,
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# but WITHOUT ANY WARRANTY; without even the implied warranty of
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# MERCHANTABILITY or FITNESS FOR A PARTICULAR PURPOSE. See the GNU
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# Lesser General Public License for more details.
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#
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# You should have received a copy of the GNU Lesser General Public
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# License along with this library. If not, see
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# <http://www.gnu.org/licenses/>.
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import sys
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import os.path
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import re
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if len(sys.argv) != 3:
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print("syntax: %s TOP-SRCDIR TOP-BUILDDIR\n" % sys.argv[0], file=sys.stderr)
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srcdir = sys.argv[1]
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builddir = sys.argv[2]
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symslibvirt = os.path.join(srcdir, "src", "libvirt_public.syms")
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symsqemu = os.path.join(srcdir, "src", "libvirt_qemu.syms")
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symslxc = os.path.join(srcdir, "src", "libvirt_lxc.syms")
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drivertablefiles = [
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os.path.join(srcdir, "src", "driver-hypervisor.h"),
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os.path.join(srcdir, "src", "driver-interface.h"),
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os.path.join(srcdir, "src", "driver-network.h"),
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os.path.join(srcdir, "src", "driver-nodedev.h"),
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os.path.join(srcdir, "src", "driver-nwfilter.h"),
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os.path.join(srcdir, "src", "driver-secret.h"),
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os.path.join(srcdir, "src", "driver-state.h"),
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os.path.join(srcdir, "src", "driver-storage.h"),
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os.path.join(srcdir, "src", "driver-stream.h"),
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]
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groupheaders = {
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"virHypervisorDriver": "Hypervisor APIs",
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"virNetworkDriver": "Virtual Network APIs",
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"virInterfaceDriver": "Host Interface APIs",
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"virNodeDeviceDriver": "Host Device APIs",
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"virStorageDriver": "Storage Pool APIs",
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"virSecretDriver": "Secret APIs",
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"virNWFilterDriver": "Network Filter APIs",
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}
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srcs = []
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for root, dirs, files in os.walk(os.path.join(srcdir, "src")):
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for file in files:
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if ((file.endswith("driver.c") and
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not file.endswith("vbox_driver.c")) or
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file.endswith("common.c") or
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file.endswith("tmpl.c") or
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file.endswith("monitor.c") or
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file.endswith("hal.c") or
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file.endswith("udev.c")):
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srcs.append(os.path.join(root, file))
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# Map API functions to the header and documentation files they're in
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# so that we can generate proper hyperlinks to their documentation.
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#
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# The function names are grep'd from the XML output of apibuild.py.
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def getAPIFilenames(filename):
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files = {}
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with open(filename) as fh:
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for line in fh:
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res = re.search(r"function name='([^']+)' file='([^']+)'", line)
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if res is not None:
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files[res.group(1)] = res.group(2)
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if len(files) == 0:
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raise Exception(("No functions found in %s. " +
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"Has the apibuild.py output changed?") %
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filename)
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return files
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def parseSymsFile(apisref, prefix, filename, xmlfilename):
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vers = None
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prevvers = None
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filenames = getAPIFilenames(xmlfilename)
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with open(filename) as fh:
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for line in fh:
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line = line.strip()
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if line == "":
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continue
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if line[0] == '#':
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continue
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if line.startswith("global:"):
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continue
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if line.startswith("local:"):
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continue
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groupstartmatch = re.search(r"^\s*%s_(\d+\.\d+\.\d+)\s*{\s*$" %
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prefix, line)
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groupendmatch1 = re.search(r"^\s*}\s*;\s*$", line)
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groupendmatch2 = re.search(r"^\s*}\s*%s_(\d+\.\d+\.\d+)\s*;\s*$" %
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prefix, line)
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symbolmatch = re.search(r"^\s*(\w+)\s*;\s*$", line)
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if groupstartmatch is not None:
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if vers is not None:
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raise Exception("malformed syms file when starting group")
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vers = groupstartmatch.group(1)
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elif groupendmatch1 is not None:
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if prevvers is not None:
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raise Exception("malformed syms file when ending group")
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prevvers = vers
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vers = None
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elif groupendmatch2 is not None:
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if groupendmatch2.group(1) != prevvers:
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raise Exception(("malformed syms file %s != %s " +
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"when ending group") %
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(groupendmatch2.group(1), prevvers))
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prevvers = vers
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vers = None
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elif symbolmatch is not None:
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name = symbolmatch.group(1)
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apisref[name] = {
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"vers": vers,
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"file": filenames.get(name),
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}
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else:
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raise Exception("unexpected data %s" % line)
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apis = {}
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# Get the list of all public APIs and their corresponding version
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parseSymsFile(apis, "LIBVIRT", symslibvirt,
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os.path.join(builddir, "docs", "libvirt-api.xml"))
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# And the same for the QEMU specific APIs
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parseSymsFile(apis, "LIBVIRT_QEMU", symsqemu,
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os.path.join(builddir, "docs", "libvirt-qemu-api.xml"))
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# And the same for the LXC specific APIs
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parseSymsFile(apis, "LIBVIRT_LXC", symslxc,
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os.path.join(builddir, "docs", "libvirt-lxc-api.xml"))
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# Some special things which aren't public APIs,
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# but we want to report
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apis["virConnectSupportsFeature"] = {
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"vers": "0.3.2"
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}
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apis["virDomainMigratePrepare"] = {
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"vers": "0.3.2"
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}
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apis["virDomainMigratePerform"] = {
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"vers": "0.3.2"
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}
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apis["virDomainMigrateFinish"] = {
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"vers": "0.3.2"
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}
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apis["virDomainMigratePrepare2"] = {
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"vers": "0.5.0"
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}
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apis["virDomainMigrateFinish2"] = {
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"vers": "0.5.0"
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}
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apis["virDomainMigratePrepareTunnel"] = {
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"vers": "0.7.2"
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}
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apis["virDomainMigrateBegin3"] = {
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"vers": "0.9.2"
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}
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apis["virDomainMigratePrepare3"] = {
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"vers": "0.9.2"
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}
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apis["virDomainMigratePrepareTunnel3"] = {
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"vers": "0.9.2"
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}
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apis["virDomainMigratePerform3"] = {
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"vers": "0.9.2"
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}
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apis["virDomainMigrateFinish3"] = {
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"vers": "0.9.2"
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}
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apis["virDomainMigrateConfirm3"] = {
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"vers": "0.9.2"
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}
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apis["virDomainMigrateBegin3Params"] = {
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"vers": "1.1.0"
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}
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apis["virDomainMigratePrepare3Params"] = {
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"vers": "1.1.0"
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}
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apis["virDomainMigratePrepareTunnel3Params"] = {
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"vers": "1.1.0"
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}
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apis["virDomainMigratePerform3Params"] = {
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"vers": "1.1.0"
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}
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apis["virDomainMigrateFinish3Params"] = {
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"vers": "1.1.0"
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}
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apis["virDomainMigrateConfirm3Params"] = {
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"vers": "1.1.0"
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}
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# Now we want to get the mapping between public APIs
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# and driver struct fields. This lets us later match
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# update the driver impls with the public APis.
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# Group name -> hash of APIs { fields -> api name }
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groups = {}
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ingrp = None
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for drivertablefile in drivertablefiles:
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with open(drivertablefile) as fh:
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for line in fh:
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starttablematch = re.search(r"struct _(vir\w*Driver)", line)
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if starttablematch is not None:
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grp = starttablematch.group(1)
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if grp != "virStateDriver" and grp != "virStreamDriver":
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ingrp = grp
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groups[ingrp] = {
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"apis": {},
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"drivers": {}
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}
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elif ingrp is not None:
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callbackmatch = re.search(r"^\s*vir(?:Drv)(\w+)\s+(\w+);\s*$",
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line)
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if callbackmatch is not None:
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name = callbackmatch.group(1)
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field = callbackmatch.group(2)
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api = "vir" + name
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if api in apis:
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groups[ingrp]["apis"][field] = api
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elif re.search(r"\w+(Open|Close|URIProbe)", api) is not None:
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continue
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else:
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raise Exception(("driver %s does not have " +
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"a public API") % name)
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elif re.search(r"};", line):
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ingrp = None
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# Finally, we read all the primary driver files and extract
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# the driver API tables from each one.
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for src in srcs:
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with open(src) as fh:
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groupsre = "|".join(groups.keys())
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ingrp = None
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impl = None
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for line in fh:
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if ingrp is None:
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m = re.search(r"^\s*(static\s+)?(" +
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groupsre +
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r")\s+(\w+)\s*=\s*{", line)
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if m is None:
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m = re.search(r"^\s*(static\s+)?(" +
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groupsre +
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r")\s+NAME\(\w+\)\s*=\s*{", line)
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if m is not None:
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ingrp = m.group(2)
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impl = src
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implmatch = re.search(r".*/node_device_(\w+)\.c", impl)
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if implmatch is None:
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implmatch = re.search(r".*/(\w+?)_((\w+)_)?(\w+)\.c", impl)
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if implmatch is None:
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raise Exception("Unexpected impl format '%s'" % impl)
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impl = implmatch.group(1)
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if impl in groups[ingrp]["drivers"]:
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raise Exception(
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"Group %s already contains %s" % (ingrp, impl))
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groups[ingrp]["drivers"][impl] = {}
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else:
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callbackmatch = re.search(r"\s*\.(\w+)\s*=\s*(\w+)\s*,?\s*" +
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r"(?:/\*\s*(\d+\.\d+\.\d+)\s*" +
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r"(?:-\s*(\d+\.\d+\.\d+))?\s*\*/\s*)?$",
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line)
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if callbackmatch is not None:
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api = callbackmatch.group(1)
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meth = callbackmatch.group(2)
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vers = callbackmatch.group(3)
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deleted = callbackmatch.group(4)
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if api == "no" or api == "name":
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continue
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if meth == "NULL" and deleted is None:
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raise Exception(
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("Method impl for %s is NULL, but " +
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"no deleted version is provided") % api)
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if meth != "NULL" and deleted is not None:
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raise Exception(
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("Method impl for %s is non-NULL, but " +
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"deleted version is provided") % api)
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if vers is None and api != "connectURIProbe":
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raise Exception(
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"Method %s in %s is missing version" %
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(meth, src))
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if api not in groups[ingrp]["apis"]:
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if re.search(r"\w+(Open|Close|URIProbe)", api):
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continue
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raise Exception("Found unexpected method " +
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"%s in %s" % (api, ingrp))
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groups[ingrp]["drivers"][impl][api] = {
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"vers": vers,
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"deleted": deleted,
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}
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if (api == "domainMigratePrepare" or
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api == "domainMigratePrepare2" or
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api == "domainMigratePrepare3"):
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if ("domainMigrate" not in
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groups[ingrp]["drivers"][impl]):
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groups[ingrp]["drivers"][impl]["domainMigrate"] = {
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"vers": vers,
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}
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elif line.find("}") != -1:
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ingrp = None
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# The '.open' driver method is used for 3 public APIs, so we
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# have a bit of manual fixup todo with the per-driver versioning
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# and support matrix
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groups["virHypervisorDriver"]["apis"]["openAuth"] = \
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"virConnectOpenAuth"
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groups["virHypervisorDriver"]["apis"]["openReadOnly"] = \
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"virConnectOpenReadOnly"
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groups["virHypervisorDriver"]["apis"]["domainMigrate"] = \
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"virDomainMigrate"
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openAuthVers = (0 * 1000 * 1000) + (4 * 1000) + 0
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drivers = groups["virHypervisorDriver"]["drivers"]
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for drv in drivers.keys():
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openVersStr = drivers[drv]["connectOpen"]["vers"]
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openVers = 0
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if openVersStr != "Y":
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openVersBits = openVersStr.split(".")
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if len(openVersBits) != 3:
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raise Exception("Expected 3 digit version for %s" % openVersStr)
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openVers = ((int(openVersBits[0]) * 1000 * 1000) +
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(int(openVersBits[1]) * 1000) +
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int(openVersBits[2]))
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# virConnectOpenReadOnly always matches virConnectOpen version
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drivers[drv]["connectOpenReadOnly"] = \
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drivers[drv]["connectOpen"]
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# virConnectOpenAuth is always 0.4.0 if the driver existed
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# before this time, otherwise it matches the version of
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# the driver's virConnectOpen entry
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if openVersStr == "Y" or openVers >= openAuthVers:
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vers = openVersStr
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else:
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vers = "0.4.0"
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drivers[drv]["connectOpenAuth"] = {
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"vers": vers,
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}
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# Another special case for the virDomainCreateLinux which was replaced
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# with virDomainCreateXML
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groups["virHypervisorDriver"]["apis"]["domainCreateLinux"] = \
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"virDomainCreateLinux"
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createAPIVers = (0 * 1000 * 1000) + (0 * 1000) + 3
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for drv in drivers.keys():
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if "domainCreateXML" not in drivers[drv]:
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continue
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createVersStr = drivers[drv]["domainCreateXML"]["vers"]
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createVers = 0
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if createVersStr != "Y":
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createVersBits = createVersStr.split(".")
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if len(createVersBits) != 3:
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raise Exception("Expected 3 digit version for %s" % createVersStr)
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createVers = ((int(createVersBits[0]) * 1000 * 1000) +
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(int(createVersBits[1]) * 1000) +
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int(createVersBits[2]))
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# virCreateLinux is always 0.0.3 if the driver existed
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# before this time, otherwise it matches the version of
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# the driver's virCreateXML entry
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if createVersStr == "Y" or createVers >= createAPIVers:
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vers = createVersStr
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else:
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vers = "0.0.3"
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drivers[drv]["domainCreateLinux"] = {
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"vers": vers,
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}
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# Finally we generate the HTML file with the tables
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print('''<?xml version="1.0" encoding="UTF-8"?>
|
||
|
<!DOCTYPE html>
|
||
|
<html xmlns="http://www.w3.org/1999/xhtml">
|
||
|
<body class="hvsupport">
|
||
|
<h1>libvirt API support matrix</h1>
|
||
|
|
||
|
<ul id="toc"></ul>
|
||
|
|
||
|
<p>
|
||
|
This page documents which <a href="html/">libvirt calls</a> work on
|
||
|
which libvirt drivers / hypervisors, and which version the API appeared
|
||
|
in. If a hypervisor driver later dropped support for the API, the version
|
||
|
when it was removed is also mentioned (highlighted in
|
||
|
<span class="removedhv">dark red</span>).
|
||
|
</p>
|
||
|
''')
|
||
|
|
||
|
for grp in sorted(groups.keys()):
|
||
|
print("<h2><a id=\"%s\">%s</a></h2>" % (grp, groupheaders[grp]))
|
||
|
print('''<table class="top_table">
|
||
|
<thead>
|
||
|
<tr>
|
||
|
<th>API</th>
|
||
|
<th>Version</th>''')
|
||
|
|
||
|
for drv in sorted(groups[grp]["drivers"].keys()):
|
||
|
print(" <th>%s</th>" % drv)
|
||
|
|
||
|
print('''</tr>
|
||
|
</thead>
|
||
|
<tbody>''')
|
||
|
|
||
|
row = 0
|
||
|
|
||
|
def sortkey(field):
|
||
|
return groups[grp]["apis"][field]
|
||
|
|
||
|
for field in sorted(groups[grp]["apis"].keys(), key=sortkey):
|
||
|
api = groups[grp]["apis"][field]
|
||
|
vers = apis[api]["vers"]
|
||
|
htmlgrp = apis[api].get("file")
|
||
|
print("<tr>")
|
||
|
|
||
|
if htmlgrp is not None:
|
||
|
print(('''<td>\n<a href=\"html/libvirt-%s.html#%s\">''' +
|
||
|
'''%s</a>\n</td>''') %
|
||
|
(htmlgrp, api, api))
|
||
|
else:
|
||
|
print("<td>\n%s</td>" % api)
|
||
|
|
||
|
print("<td>%s</td>" % vers)
|
||
|
|
||
|
for drv in sorted(groups[grp]["drivers"].keys()):
|
||
|
info = ""
|
||
|
if field in groups[grp]["drivers"][drv]:
|
||
|
vers = groups[grp]["drivers"][drv][field]["vers"]
|
||
|
if vers is not None:
|
||
|
info = info + vers
|
||
|
|
||
|
deleted = groups[grp]["drivers"][drv][field].get("deleted")
|
||
|
if deleted is not None:
|
||
|
info = info + (''' - <span class="removedhv">''' +
|
||
|
'''%s</span>''' % deleted)
|
||
|
|
||
|
print("<td>%s</td>" % info)
|
||
|
|
||
|
print("</tr>")
|
||
|
|
||
|
row = row + 1
|
||
|
if (row % 15) == 0:
|
||
|
print('''<tr>
|
||
|
<th>API</th>
|
||
|
<th>Version</th>''')
|
||
|
|
||
|
for drv in sorted(groups[grp]["drivers"].keys()):
|
||
|
print(" <th>%s</th>" % drv)
|
||
|
|
||
|
print("</tr>")
|
||
|
|
||
|
print("</tbody>\n</table>")
|
||
|
|
||
|
print("</body>\n</html>")
|