diff options
Diffstat (limited to 'src/libcharon/plugins/vici/ruby')
| -rw-r--r-- | src/libcharon/plugins/vici/ruby/Makefile.am | 22 | ||||
| -rw-r--r-- | src/libcharon/plugins/vici/ruby/Makefile.in | 556 | ||||
| -rw-r--r-- | src/libcharon/plugins/vici/ruby/lib/vici.rb | 569 | ||||
| -rw-r--r-- | src/libcharon/plugins/vici/ruby/vici.gemspec.in | 16 |
4 files changed, 1163 insertions, 0 deletions
diff --git a/src/libcharon/plugins/vici/ruby/Makefile.am b/src/libcharon/plugins/vici/ruby/Makefile.am new file mode 100644 index 000000000..ce38e1c3d --- /dev/null +++ b/src/libcharon/plugins/vici/ruby/Makefile.am @@ -0,0 +1,22 @@ +EXTRA_DIST = vici.gemspec.in lib/vici.rb + +vici.gemspec: $(srcdir)/vici.gemspec.in + $(AM_V_GEN) sed \ + -e "s:@GEM_VERSION@:$(PACKAGE_VERSION):" \ + $(srcdir)/vici.gemspec.in > $@ + +vici-$(PACKAGE_VERSION).gem: vici.gemspec + $(GEM) build vici.gemspec + +all-local: vici-$(PACKAGE_VERSION).gem + +clean-local: + rm -f vici.gemspec vici-$(PACKAGE_VERSION).gem + +install-data-local: vici-$(PACKAGE_VERSION).gem + $(GEM) install --install-dir $(DESTDIR)$(RUBYGEMDIR) \ + vici-$(PACKAGE_VERSION).gem + +uninstall-local: + $(GEM) uninstall --install-dir $(DESTDIR)$(RUBYGEMDIR) \ + --version $(PACKAGE_VERSION) vici diff --git a/src/libcharon/plugins/vici/ruby/Makefile.in b/src/libcharon/plugins/vici/ruby/Makefile.in new file mode 100644 index 000000000..c8a8c11fb --- /dev/null +++ b/src/libcharon/plugins/vici/ruby/Makefile.in @@ -0,0 +1,556 @@ +# Makefile.in generated by automake 1.14.1 from Makefile.am. +# @configure_input@ + +# Copyright (C) 1994-2013 Free Software Foundation, Inc. + +# This Makefile.in is free software; the Free Software Foundation +# gives unlimited permission to copy and/or distribute it, +# with or without modifications, as long as this notice is preserved. + +# This program is distributed in the hope that it will be useful, +# but WITHOUT ANY WARRANTY, to the extent permitted by law; without +# even the implied warranty of MERCHANTABILITY or FITNESS FOR A +# PARTICULAR PURPOSE. + +@SET_MAKE@ +VPATH = @srcdir@ +am__is_gnu_make = test -n '$(MAKEFILE_LIST)' && test -n '$(MAKELEVEL)' +am__make_running_with_option = \ + case $${target_option-} in \ + ?) ;; \ + *) echo "am__make_running_with_option: internal error: invalid" \ + "target option '$${target_option-}' specified" >&2; \ + exit 1;; \ + esac; \ + has_opt=no; \ + 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+PKG_CONFIG_LIBDIR = @PKG_CONFIG_LIBDIR@ +PKG_CONFIG_PATH = @PKG_CONFIG_PATH@ +PLUGIN_CFLAGS = @PLUGIN_CFLAGS@ +PTHREADLIB = @PTHREADLIB@ +PYTHON = @PYTHON@ +PYTHON_EXEC_PREFIX = @PYTHON_EXEC_PREFIX@ +PYTHON_PLATFORM = @PYTHON_PLATFORM@ +PYTHON_PREFIX = @PYTHON_PREFIX@ +PYTHON_VERSION = @PYTHON_VERSION@ +RANLIB = @RANLIB@ +RTLIB = @RTLIB@ +RUBY = @RUBY@ +RUBYGEMDIR = @RUBYGEMDIR@ +RUBYINCLUDE = @RUBYINCLUDE@ +RUBYLIB = @RUBYLIB@ +SED = @SED@ +SET_MAKE = @SET_MAKE@ +SHELL = @SHELL@ +SOCKLIB = @SOCKLIB@ +STRIP = @STRIP@ +UNWINDLIB = @UNWINDLIB@ +VERSION = @VERSION@ +YACC = @YACC@ +YFLAGS = @YFLAGS@ +abs_builddir = @abs_builddir@ +abs_srcdir = @abs_srcdir@ +abs_top_builddir = @abs_top_builddir@ +abs_top_srcdir = @abs_top_srcdir@ +ac_ct_AR = @ac_ct_AR@ +ac_ct_CC = @ac_ct_CC@ +ac_ct_DUMPBIN = @ac_ct_DUMPBIN@ +aikgen_plugins = @aikgen_plugins@ +am__include = @am__include@ +am__leading_dot = @am__leading_dot@ +am__quote = @am__quote@ +am__tar = @am__tar@ +am__untar = @am__untar@ 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-f $$file || test -d $$file; then d=.; else d=$(srcdir); fi; \ + if test -d $$d/$$file; then \ + dir=`echo "/$$file" | sed -e 's,/[^/]*$$,,'`; \ + if test -d "$(distdir)/$$file"; then \ + find "$(distdir)/$$file" -type d ! -perm -700 -exec chmod u+rwx {} \;; \ + fi; \ + if test -d $(srcdir)/$$file && test $$d != $(srcdir); then \ + cp -fpR $(srcdir)/$$file "$(distdir)$$dir" || exit 1; \ + find "$(distdir)/$$file" -type d ! -perm -700 -exec chmod u+rwx {} \;; \ + fi; \ + cp -fpR $$d/$$file "$(distdir)$$dir" || exit 1; \ + else \ + test -f "$(distdir)/$$file" \ + || cp -p $$d/$$file "$(distdir)/$$file" \ + || exit 1; \ + fi; \ + done +check-am: all-am +check: check-am +all-am: Makefile all-local +installdirs: +install: install-am +install-exec: install-exec-am +install-data: install-data-am +uninstall: uninstall-am + +install-am: all-am + @$(MAKE) $(AM_MAKEFLAGS) install-exec-am install-data-am + +installcheck: installcheck-am +install-strip: + if test -z '$(STRIP)'; then \ + $(MAKE) $(AM_MAKEFLAGS) INSTALL_PROGRAM="$(INSTALL_STRIP_PROGRAM)" \ + install_sh_PROGRAM="$(INSTALL_STRIP_PROGRAM)" INSTALL_STRIP_FLAG=-s \ + install; \ + else \ + $(MAKE) $(AM_MAKEFLAGS) INSTALL_PROGRAM="$(INSTALL_STRIP_PROGRAM)" \ + install_sh_PROGRAM="$(INSTALL_STRIP_PROGRAM)" INSTALL_STRIP_FLAG=-s \ + "INSTALL_PROGRAM_ENV=STRIPPROG='$(STRIP)'" install; \ + fi +mostlyclean-generic: + +clean-generic: + +distclean-generic: + -test -z "$(CONFIG_CLEAN_FILES)" || rm -f $(CONFIG_CLEAN_FILES) + -test . = "$(srcdir)" || test -z "$(CONFIG_CLEAN_VPATH_FILES)" || rm -f $(CONFIG_CLEAN_VPATH_FILES) + +maintainer-clean-generic: + @echo "This command is intended for maintainers to use" + @echo "it deletes files that may require special tools to rebuild." +clean: clean-am + +clean-am: clean-generic clean-libtool clean-local mostlyclean-am + +distclean: distclean-am + -rm -f Makefile +distclean-am: clean-am distclean-generic + +dvi: dvi-am + +dvi-am: + +html: html-am + +html-am: + +info: info-am + 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\ + install-exec install-exec-am install-html install-html-am \ + install-info install-info-am install-man install-pdf \ + install-pdf-am install-ps install-ps-am install-strip \ + installcheck installcheck-am installdirs maintainer-clean \ + maintainer-clean-generic mostlyclean mostlyclean-generic \ + mostlyclean-libtool pdf pdf-am ps ps-am tags-am uninstall \ + uninstall-am uninstall-local + + +vici.gemspec: $(srcdir)/vici.gemspec.in + $(AM_V_GEN) sed \ + -e "s:@GEM_VERSION@:$(PACKAGE_VERSION):" \ + $(srcdir)/vici.gemspec.in > $@ + +vici-$(PACKAGE_VERSION).gem: vici.gemspec + $(GEM) build vici.gemspec + +all-local: vici-$(PACKAGE_VERSION).gem + +clean-local: + rm -f vici.gemspec vici-$(PACKAGE_VERSION).gem + +install-data-local: vici-$(PACKAGE_VERSION).gem + $(GEM) install --install-dir $(DESTDIR)$(RUBYGEMDIR) \ + vici-$(PACKAGE_VERSION).gem + +uninstall-local: + $(GEM) uninstall --install-dir $(DESTDIR)$(RUBYGEMDIR) \ + --version $(PACKAGE_VERSION) vici + +# Tell versions [3.59,3.63) of GNU make to not export all variables. +# Otherwise a system limit (for SysV at least) may be exceeded. +.NOEXPORT: diff --git a/src/libcharon/plugins/vici/ruby/lib/vici.rb b/src/libcharon/plugins/vici/ruby/lib/vici.rb new file mode 100644 index 000000000..e8a9ddca9 --- /dev/null +++ b/src/libcharon/plugins/vici/ruby/lib/vici.rb @@ -0,0 +1,569 @@ +## +# The Vici module implements a native ruby client side library for the +# strongSwan VICI protocol. The Connection class provides a high-level +# interface to issue requests or listen for events. +# +# Copyright (C) 2014 Martin Willi +# Copyright (C) 2014 revosec AG +# +# Permission is hereby granted, free of charge, to any person obtaining a copy +# of this software and associated documentation files (the "Software"), to deal +# in the Software without restriction, including without limitation the rights +# to use, copy, modify, merge, publish, distribute, sublicense, and/or sell +# copies of the Software, and to permit persons to whom the Software is +# furnished to do so, subject to the following conditions: +# +# The above copyright notice and this permission notice shall be included in +# all copies or substantial portions of the Software. +# +# THE SOFTWARE IS PROVIDED "AS IS", WITHOUT WARRANTY OF ANY KIND, EXPRESS OR +# IMPLIED, INCLUDING BUT NOT LIMITED TO THE WARRANTIES OF MERCHANTABILITY, +# FITNESS FOR A PARTICULAR PURPOSE AND NONINFRINGEMENT. IN NO EVENT SHALL THE +# AUTHORS OR COPYRIGHT HOLDERS BE LIABLE FOR ANY CLAIM, DAMAGES OR OTHER +# LIABILITY, WHETHER IN AN ACTION OF CONTRACT, TORT OR OTHERWISE, ARISING FROM, +# OUT OF OR IN CONNECTION WITH THE SOFTWARE OR THE USE OR OTHER DEALINGS IN +# THE SOFTWARE. + +module Vici + + ## + # Vici specific exception all others inherit from + class Error < StandardError + end + + ## + # Error while parsing a vici message from the daemon + class ParseError < Error + end + + ## + # Error while encoding a vici message from ruby data structures + class EncodeError < Error + end + + ## + # Error while exchanging messages over the vici Transport layer + class TransportError < Error + end + + ## + # Generic vici command execution error + class CommandError < Error + end + + ## + # Error if an issued vici command is unknown by the daemon + class CommandUnknownError < CommandError + end + + ## + # Error if a command failed to execute in the daemon + class CommandExecError < CommandError + end + + ## + # Generic vici event handling error + class EventError < Error + end + + ## + # Tried to register to / unregister from an unknown vici event + class EventUnknownError < EventError + end + + ## + # Exception to raise from an event listening closure to stop listening + class StopEventListening < Exception + end + + + ## + # The Message class provides the low level encoding and decoding of vici + # protocol messages. Directly using this class is usually not required. + class Message + + SECTION_START = 1 + SECTION_END = 2 + KEY_VALUE = 3 + LIST_START = 4 + LIST_ITEM = 5 + LIST_END = 6 + + def initialize(data = "") + if data == nil + @root = Hash.new() + elsif data.is_a?(Hash) + @root = data + else + @encoded = data + end + end + + ## + # Get the raw byte encoding of an on-the-wire message + def encoding + if @encoded == nil + @encoded = encode(@root) + end + @encoded + end + + ## + # Get the root element of the parsed ruby data structures + def root + if @root == nil + @root = parse(@encoded) + end + @root + end + + private + + def encode_name(name) + [name.length].pack("c") << name + end + + def encode_value(value) + if value.class != String + value = value.to_s + end + [value.length].pack("n") << value + end + + def encode_kv(encoding, key, value) + encoding << KEY_VALUE << encode_name(key) << encode_value(value) + end + + def encode_section(encoding, key, value) + encoding << SECTION_START << encode_name(key) + encoding << encode(value) << SECTION_END + end + + def encode_list(encoding, key, value) + encoding << LIST_START << encode_name(key) + value.each do |item| + encoding << LIST_ITEM << encode_value(item) + end + encoding << LIST_END + end + + def encode(node) + encoding = "" + node.each do |key, value| + case value.class + when String, Fixnum, true, false + encoding = encode_kv(encoding, key, value) + else + if value.is_a?(Hash) + encoding = encode_section(encoding, key, value) + elsif value.is_a?(Array) + encoding = encode_list(encoding, key, value) + else + encoding = encode_kv(encoding, key, value) + end + end + end + encoding + end + + def parse_name(encoding) + len = encoding.unpack("c")[0] + name = encoding[1, len] + return encoding[(1 + len)..-1], name + end + + def parse_value(encoding) + len = encoding.unpack("n")[0] + value = encoding[2, len] + return encoding[(2 + len)..-1], value + end + + def parse(encoding) + stack = [Hash.new] + list = nil + while encoding.length != 0 do + type = encoding.unpack("c")[0] + encoding = encoding[1..-1] + case type + when SECTION_START + encoding, name = parse_name(encoding) + stack.push(stack[-1][name] = Hash.new) + when SECTION_END + if stack.length() == 1 + raise ParseError, "unexpected section end" + end + stack.pop() + when KEY_VALUE + encoding, name = parse_name(encoding) + encoding, value = parse_value(encoding) + stack[-1][name] = value + when LIST_START + encoding, name = parse_name(encoding) + stack[-1][name] = [] + list = name + when LIST_ITEM + raise ParseError, "unexpected list item" if list == nil + encoding, value = parse_value(encoding) + stack[-1][list].push(value) + when LIST_END + raise ParseError, "unexpected list end" if list == nil + list = nil + else + raise ParseError, "invalid type: #{type}" + end + end + if stack.length() > 1 + raise ParseError, "unexpected message end" + end + stack[0] + end + end + + + ## + # The Transport class implements to low level segmentation of packets + # to the underlying transport stream. Directly using this class is usually + # not required. + class Transport + + CMD_REQUEST = 0 + CMD_RESPONSE = 1 + CMD_UNKNOWN = 2 + EVENT_REGISTER = 3 + EVENT_UNREGISTER = 4 + EVENT_CONFIRM = 5 + EVENT_UNKNOWN = 6 + EVENT = 7 + + ## + # Create a transport layer using a provided socket for communication. + def initialize(socket) + @socket = socket + @events = Hash.new + end + + ## + # Write a packet prefixed by its length over the transport socket. Type + # specifies the message, the optional label and message get appended. + def write(type, label, message) + encoding = "" + if label + encoding << label.length << label + end + if message + encoding << message.encoding + end + @socket.send([encoding.length + 1, type].pack("Nc") + encoding, 0) + end + + ## + # Read a packet from the transport socket. Returns the packet type, and + # if available in the packet a label and the contained message. + def read + len = @socket.recv(4).unpack("N")[0] + encoding = @socket.recv(len) + type = encoding.unpack("c")[0] + len = 1 + case type + when CMD_REQUEST, EVENT_REGISTER, EVENT_UNREGISTER, EVENT + label = encoding[2, encoding[1].unpack("c")[0]] + len += label.length + 1 + when CMD_RESPONSE, CMD_UNKNOWN, EVENT_CONFIRM, EVENT_UNKNOWN + label = nil + else + raise TransportError, "invalid message: #{type}" + end + if encoding.length == len + return type, label, Message.new + end + return type, label, Message.new(encoding[len..-1]) + end + + def dispatch_event(name, message) + @events[name].each do |handler| + handler.call(name, message) + end + end + + def read_and_dispatch_event + type, label, message = read + p + if type == EVENT + dispatch_event(label, message) + else + raise TransportError, "unexpected message: #{type}" + end + end + + def read_and_dispatch_events + loop do + type, label, message = read + if type == EVENT + dispatch_event(label, message) + else + return type, label, message + end + end + end + + ## + # Send a command with a given name, and optionally a message. Returns + # the reply message on success. + def request(name, message = nil) + write(CMD_REQUEST, name, message) + type, label, message = read_and_dispatch_events + case type + when CMD_RESPONSE + return message + when CMD_UNKNOWN + raise CommandUnknownError, name + else + raise CommandError, "invalid response for #{name}" + end + end + + ## + # Register a handler method for the given event name + def register(name, handler) + write(EVENT_REGISTER, name, nil) + type, label, message = read_and_dispatch_events + case type + when EVENT_CONFIRM + if @events.has_key?(name) + @events[name] += [handler] + else + @events[name] = [handler]; + end + when EVENT_UNKNOWN + raise EventUnknownError, name + else + raise EventError, "invalid response for #{name} register" + end + end + + ## + # Unregister a handler method for the given event name + def unregister(name, handler) + write(EVENT_UNREGISTER, name, nil) + type, label, message = read_and_dispatch_events + case type + when EVENT_CONFIRM + @events[name] -= [handler] + when EVENT_UNKNOWN + raise EventUnknownError, name + else + raise EventError, "invalid response for #{name} unregister" + end + end + end + + + ## + # The Connection class provides the high-level interface to monitor, configure + # and control the IKE daemon. It takes a connected stream-oriented Socket for + # the communication with the IKE daemon. + # + # This class takes and returns ruby objects for the exchanged message data. + # * Sections get encoded as Hash, containing other sections as Hash, or + # * Key/Values, where the values are Strings as Hash values + # * Lists get encoded as Arrays with String values + # Non-String values that are not a Hash nor an Array get converted with .to_s + # during encoding. + class Connection + + def initialize(socket) + @transp = Transport.new(socket) + end + + ## + # List matching loaded connections. The provided closure is invoked + # for each matching connection. + def list_conns(match = nil, &block) + call_with_event("list-conns", Message.new(match), "list-conn", &block) + end + + ## + # List matching active SAs. The provided closure is invoked for each + # matching SA. + def list_sas(match = nil, &block) + call_with_event("list-sas", Message.new(match), "list-sa", &block) + end + + ## + # List matching installed policies. The provided closure is invoked + # for each matching policy. + def list_policies(match, &block) + call_with_event("list-policies", Message.new(match), "list-policy", + &block) + end + + ## + # List matching loaded certificates. The provided closure is invoked + # for each matching certificate definition. + def list_certs(match = nil, &block) + call_with_event("list-certs", Message.new(match), "list-cert", &block) + end + + ## + # Load a connection into the daemon. + def load_conn(conn) + check_success(@transp.request("load-conn", Message.new(conn))) + end + + ## + # Unload a connection from the daemon. + def unload_conn(conn) + check_success(@transp.request("unload-conn", Message.new(conn))) + end + + ## + # Get the names of connections managed by vici. + def get_conns() + @transp.request("get-conns").root + end + + ## + # Clear all loaded credentials. + def clear_creds() + check_success(@transp.request("clear-creds")) + end + + ## + # Load a certificate into the daemon. + def load_cert(cert) + check_success(@transp.request("load-cert", Message.new(cert))) + end + + ## + # Load a private key into the daemon. + def load_key(key) + check_success(@transp.request("load-key", Message.new(key))) + end + + ## + # Load a shared key into the daemon. + def load_shared(shared) + check_success(@transp.request("load-shared", Message.new(shared))) + end + + ## + # Load a virtual IP / attribute pool + def load_pool(pool) + check_success(@transp.request("load-pool", Message.new(pool))) + end + + ## + # Unload a virtual IP / attribute pool + def unload_pool(pool) + check_success(@transp.request("unload-pool", Message.new(pool))) + end + + ## + # Get the currently loaded pools. + def get_pools() + @transp.request("get-pools").root + end + + ## + # Initiate a connection. The provided closure is invoked for each log line. + def initiate(options, &block) + check_success(call_with_event("initiate", Message.new(options), + "control-log", &block)) + end + + ## + # Terminate a connection. The provided closure is invoked for each log line. + def terminate(options, &block) + check_success(call_with_event("terminate", Message.new(options), + "control-log", &block)) + end + + ## + # Install a shunt/route policy. + def install(policy) + check_success(@transp.request("install", Message.new(policy))) + end + + ## + # Uninstall a shunt/route policy. + def uninstall(policy) + check_success(@transp.request("uninstall", Message.new(policy))) + end + + ## + # Reload strongswan.conf settings. + def reload_settings + check_success(@transp.request("reload-settings", nil)) + end + + ## + # Get daemon statistics and information. + def stats + @transp.request("stats", nil).root + end + + ## + # Get daemon version information + def version + @transp.request("version", nil).root + end + + ## + # Listen for a set of event messages. This call is blocking, and invokes + # the passed closure for each event received. The closure receives the + # event name and the event message as argument. To stop listening, the + # closure may raise a StopEventListening exception, the only catched + # exception. + def listen_events(events, &block) + self.class.instance_eval do + define_method(:listen_event) do |label, message| + block.call(label, message.root) + end + end + events.each do |event| + @transp.register(event, method(:listen_event)) + end + begin + loop do + @transp.read_and_dispatch_event + end + rescue StopEventListening + ensure + events.each do |event| + @transp.unregister(event, method(:listen_event)) + end + end + end + + ## + # Issue a command request, but register for a specific event while the + # command is active. VICI uses this mechanism to stream potentially large + # data objects continuously. The provided closure is invoked for all + # event messages. + def call_with_event(command, request, event, &block) + self.class.instance_eval do + define_method(:call_event) do |label, message| + block.call(message.root) + end + end + @transp.register(event, method(:call_event)) + begin + reply = @transp.request(command, request) + ensure + @transp.unregister(event, method(:call_event)) + end + reply + end + + ## + # Check if the reply of a command indicates "success", otherwise raise a + # CommandExecError exception + def check_success(reply) + root = reply.root + if root["success"] != "yes" + raise CommandExecError, root["errmsg"] + end + root + end + end +end diff --git a/src/libcharon/plugins/vici/ruby/vici.gemspec.in b/src/libcharon/plugins/vici/ruby/vici.gemspec.in new file mode 100644 index 000000000..5ad61c0a0 --- /dev/null +++ b/src/libcharon/plugins/vici/ruby/vici.gemspec.in @@ -0,0 +1,16 @@ +Gem::Specification.new do |s| + s.name = "vici" + s.version = "@GEM_VERSION@" + s.authors = ["Martin Willi"] + s.email = ["martin@strongswan.ch"] + s.description = %q{ + The strongSwan VICI protocol allows external application to monitor, + configure and control the IKE daemon charon. This ruby gem provides a + native client side implementation of the VICI protocol, well suited to + script automated tasks in a relaible way. + } + s.summary = "Native ruby interface for strongSwan VICI" + s.homepage = "https://wiki.strongswan.org/projects/strongswan/wiki/Vici" + s.license = "MIT" + s.files = "lib/vici.rb" +end |