14 files changed, 3903 insertions, 0 deletions

diff --git a/lib/ipc/Makefile.am b/lib/ipc/Makefile.am
new file mode 100644
index 000000000000..fc3ba469d481
--- /dev/null
+++ b/lib/ipc/Makefile.am
@@ -0,0 +1,67 @@
+include $(top_srcdir)/Makefile.am.common
+
+noinst_LTLIBRARIES = libheim-ipcc.la libheim-ipcs.la
+
+dist_libheim_ipcc_la_SOURCES = hi_locl.h heim_ipc_types.h client.c common.c
+dist_libheim_ipcs_la_SOURCES = hi_locl.h heim_ipc_types.h server.c common.c
+
+include_HEADERS = heim-ipc.h
+
+##
+## Enable when this is not a noinst_ library
+##
+#libheim_ipcc_la_LDFLAGS = -version-info 0:0:0
+#libheim_ipcs_la_LDFLAGS = -version-info 0:0:0
+#
+#if versionscript
+#libheim_ipcc_la_LDFLAGS += $(LDFLAGS_VERSION_SCRIPT)$(srcdir)/version-scriptc.map
+#libheim_ipcs_la_LDFLAGS += $(LDFLAGS_VERSION_SCRIPT)$(srcdir)/version-scripts.map
+#endif
+
+libheim_ipcc_la_LIBADD = \
+	$(LIB_heimbase) \
+	$(LIB_roken) \
+	$(PTHREAD_LIBADD)
+
+libheim_ipcs_la_LIBADD = $(libheim_ipcc_la_LIBADD)
+
+TESTS =	$(check_PROGRAMS)
+
+noinst_PROGRAMS = tc ts ts-http
+
+ts_LDADD = libheim-ipcs.la $(LIB_roken)
+ts_http_LDADD = $(ts_LDADD)
+tc_LDADD = libheim-ipcc.la $(LIB_roken)
+
+if have_gcd
+
+EXTRA_DIST = heim_ipc.defs heim_ipc_async.defs heim_ipc_reply.defs
+
+heim_ipc.h heim_ipcUser.c heim_ipcServer.c heim_ipcServer.h: heim_ipc.defs
+	mig -header heim_ipc.h -user heim_ipcUser.c -sheader heim_ipcServer.h -server heim_ipcServer.c -I$(srcdir) $(srcdir)/heim_ipc.defs
+
+heim_ipc_async.h heim_ipc_asyncUser.c heim_ipc_asyncServer.c heim_ipc_asyncServer.h: heim_ipc_async.defs
+	mig -header heim_ipc_async.h -user heim_ipc_asyncUser.c -sheader heim_ipc_asyncServer.h -server heim_ipc_asyncServer.c -I$(srcdir) $(srcdir)/heim_ipc_async.defs
+
+heim_ipc_reply.h heim_ipc_replyUser.c: heim_ipc_reply.defs
+	mig -header heim_ipc_reply.h -user heim_ipc_replyUser.c -sheader /dev/null -server /dev/null -I$(srcdir) $(srcdir)/heim_ipc_reply.defs
+
+built_ipcc = heim_ipc.h heim_ipcUser.c
+built_ipcc += heim_ipc_asyncServer.c heim_ipc_asyncServer.h
+
+nodist_libheim_ipcc_la_SOURCES = $(built_ipcc)
+
+built_ipcs = heim_ipcServer.c heim_ipcServer.h
+built_ipcs += heim_ipc_asyncUser.c heim_ipc_async.h
+built_ipcs += heim_ipc_reply.h heim_ipc_replyUser.c
+
+nodist_libheim_ipcs_la_SOURCES = $(built_ipcs)
+
+libheim_ipcs_la_LIBADD += -lbsm
+
+CLEANFILES = $(built_ipcc) $(built_ipcs)
+
+$(srcdir)/client.c: $(built_ipcc)
+$(srcdir)/server.c: $(built_ipcs)
+
+endif
\ No newline at end of file
diff --git a/lib/ipc/Makefile.in b/lib/ipc/Makefile.in
new file mode 100644
index 000000000000..1fd0c227bd6e
--- /dev/null
+++ b/lib/ipc/Makefile.in
@@ -0,0 +1,1073 @@
+# Makefile.in generated by automake 1.11.1 from Makefile.am.
+# @configure_input@
+
+# Copyright (C) 1994, 1995, 1996, 1997, 1998, 1999, 2000, 2001, 2002,
+# 2003, 2004, 2005, 2006, 2007, 2008, 2009  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@
+
+# $Id$
+
+# $Id$
+
+
+
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+INSTALL_HEADER = $(INSTALL_DATA)
+transform = $(program_transform_name)
+NORMAL_INSTALL = :
+PRE_INSTALL = :
+POST_INSTALL = :
+NORMAL_UNINSTALL = :
+PRE_UNINSTALL = :
+POST_UNINSTALL = :
+build_triplet = @build@
+host_triplet = @host@
+DIST_COMMON = $(include_HEADERS) $(srcdir)/Makefile.am \
+	$(srcdir)/Makefile.in $(top_srcdir)/Makefile.am.common \
+	$(top_srcdir)/cf/Makefile.am.common
+TESTS =
+noinst_PROGRAMS = tc$(EXEEXT) ts$(EXEEXT) ts-http$(EXEEXT)
+@have_gcd_TRUE@am__append_1 = -lbsm
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+	$(am__DEPENDENCIES_1)
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+@do_roken_rename_TRUE@ROKEN_RENAME = -DROKEN_RENAME
+AM_CFLAGS = $(WFLAGS)
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+LIB_el_init = @LIB_el_init@
+LIB_getattr = @LIB_getattr@
+LIB_getpwent_r = @LIB_getpwent_r@
+LIB_odm_initialize = @LIB_odm_initialize@
+LIB_setpcred = @LIB_setpcred@
+HESIODLIB = @HESIODLIB@
+HESIODINCLUDE = @HESIODINCLUDE@
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+NROFF_MAN = groff -mandoc -Tascii
+LIB_kafs = $(top_builddir)/lib/kafs/libkafs.la $(AIX_EXTRA_KAFS)
+@KRB5_TRUE@LIB_krb5 = $(top_builddir)/lib/krb5/libkrb5.la \
+@KRB5_TRUE@	$(top_builddir)/lib/asn1/libasn1.la
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+include_HEADERS = heim-ipc.h
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+#libheim_ipcc_la_LDFLAGS = -version-info 0:0:0
+#libheim_ipcs_la_LDFLAGS = -version-info 0:0:0
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+#libheim_ipcc_la_LDFLAGS += $(LDFLAGS_VERSION_SCRIPT)$(srcdir)/version-scriptc.map
+#libheim_ipcs_la_LDFLAGS += $(LDFLAGS_VERSION_SCRIPT)$(srcdir)/version-scripts.map
+#endif
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+	$(LIB_roken) \
+	$(PTHREAD_LIBADD)
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+@have_gcd_TRUE@EXTRA_DIST = heim_ipc.defs heim_ipc_async.defs heim_ipc_reply.defs
+@have_gcd_TRUE@built_ipcc = heim_ipc.h heim_ipcUser.c \
+@have_gcd_TRUE@	heim_ipc_asyncServer.c heim_ipc_asyncServer.h
+@have_gcd_TRUE@nodist_libheim_ipcc_la_SOURCES = $(built_ipcc)
+@have_gcd_TRUE@built_ipcs = heim_ipcServer.c heim_ipcServer.h \
+@have_gcd_TRUE@	heim_ipc_asyncUser.c heim_ipc_async.h \
+@have_gcd_TRUE@	heim_ipc_reply.h heim_ipc_replyUser.c
+@have_gcd_TRUE@nodist_libheim_ipcs_la_SOURCES = $(built_ipcs)
+@have_gcd_TRUE@CLEANFILES = $(built_ipcc) $(built_ipcs)
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+	@for dep in $?; do \
+	  case '$(am__configure_deps)' in \
+	    *$$dep*) \
+	      ( cd $(top_builddir) && $(MAKE) $(AM_MAKEFLAGS) am--refresh ) \
+	        && { if test -f $@; then exit 0; else break; fi; }; \
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+	echo ' cd $(top_srcdir) && $(AUTOMAKE) --foreign lib/ipc/Makefile'; \
+	$(am__cd) $(top_srcdir) && \
+	  $(AUTOMAKE) --foreign lib/ipc/Makefile
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+	@case '$?' in \
+	  *config.status*) \
+	    cd $(top_builddir) && $(MAKE) $(AM_MAKEFLAGS) am--refresh;; \
+	  *) \
+	    echo ' cd $(top_builddir) && $(SHELL) ./config.status $(subdir)/$@ $(am__depfiles_maybe)'; \
+	    cd $(top_builddir) && $(SHELL) ./config.status $(subdir)/$@ $(am__depfiles_maybe);; \
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+$(top_builddir)/config.status: $(top_srcdir)/configure $(CONFIG_STATUS_DEPENDENCIES)
+	cd $(top_builddir) && $(MAKE) $(AM_MAKEFLAGS) am--refresh
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+$(top_srcdir)/configure: @MAINTAINER_MODE_TRUE@ $(am__configure_deps)
+	cd $(top_builddir) && $(MAKE) $(AM_MAKEFLAGS) am--refresh
+$(ACLOCAL_M4): @MAINTAINER_MODE_TRUE@ $(am__aclocal_m4_deps)
+	cd $(top_builddir) && $(MAKE) $(AM_MAKEFLAGS) am--refresh
+$(am__aclocal_m4_deps):
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+clean-noinstLTLIBRARIES:
+	-test -z "$(noinst_LTLIBRARIES)" || rm -f $(noinst_LTLIBRARIES)
+	@list='$(noinst_LTLIBRARIES)'; for p in $$list; do \
+	  dir="`echo $$p | sed -e 's|/[^/]*$$||'`"; \
+	  test "$$dir" != "$$p" || dir=.; \
+	  echo "rm -f \"$${dir}/so_locations\""; \
+	  rm -f "$${dir}/so_locations"; \
+	done
+libheim-ipcc.la: $(libheim_ipcc_la_OBJECTS) $(libheim_ipcc_la_DEPENDENCIES) 
+	$(LINK)  $(libheim_ipcc_la_OBJECTS) $(libheim_ipcc_la_LIBADD) $(LIBS)
+libheim-ipcs.la: $(libheim_ipcs_la_OBJECTS) $(libheim_ipcs_la_DEPENDENCIES) 
+	$(LINK)  $(libheim_ipcs_la_OBJECTS) $(libheim_ipcs_la_LIBADD) $(LIBS)
+
+clean-noinstPROGRAMS:
+	@list='$(noinst_PROGRAMS)'; test -n "$$list" || exit 0; \
+	echo " rm -f" $$list; \
+	rm -f $$list || exit $$?; \
+	test -n "$(EXEEXT)" || exit 0; \
+	list=`for p in $$list; do echo "$$p"; done | sed 's/$(EXEEXT)$$//'`; \
+	echo " rm -f" $$list; \
+	rm -f $$list
+tc$(EXEEXT): $(tc_OBJECTS) $(tc_DEPENDENCIES) 
+	@rm -f tc$(EXEEXT)
+	$(LINK) $(tc_OBJECTS) $(tc_LDADD) $(LIBS)
+ts$(EXEEXT): $(ts_OBJECTS) $(ts_DEPENDENCIES) 
+	@rm -f ts$(EXEEXT)
+	$(LINK) $(ts_OBJECTS) $(ts_LDADD) $(LIBS)
+ts-http$(EXEEXT): $(ts_http_OBJECTS) $(ts_http_DEPENDENCIES) 
+	@rm -f ts-http$(EXEEXT)
+	$(LINK) $(ts_http_OBJECTS) $(ts_http_LDADD) $(LIBS)
+
+mostlyclean-compile:
+	-rm -f *.$(OBJEXT)
+
+distclean-compile:
+	-rm -f *.tab.c
+
+@AMDEP_TRUE@@am__include@ @am__quote@./$(DEPDIR)/client.Plo@am__quote@
+@AMDEP_TRUE@@am__include@ @am__quote@./$(DEPDIR)/common.Plo@am__quote@
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+	install-ps install-ps-am install-strip installcheck \
+	installcheck-am installdirs maintainer-clean \
+	maintainer-clean-generic mostlyclean mostlyclean-compile \
+	mostlyclean-generic mostlyclean-libtool pdf pdf-am ps ps-am \
+	tags uninstall uninstall-am uninstall-hook \
+	uninstall-includeHEADERS
+
+
+install-suid-programs:
+	@foo='$(bin_SUIDS)'; \
+	for file in $$foo; do \
+	x=$(DESTDIR)$(bindir)/$$file; \
+	if chown 0:0 $$x && chmod u+s $$x; then :; else \
+	echo "*"; \
+	echo "* Failed to install $$x setuid root"; \
+	echo "*"; \
+	fi; done
+
+install-exec-hook: install-suid-programs
+
+install-build-headers:: $(include_HEADERS) $(dist_include_HEADERS) $(nodist_include_HEADERS) $(build_HEADERZ) $(nobase_include_HEADERS)
+	@foo='$(include_HEADERS) $(dist_include_HEADERS) $(nodist_include_HEADERS) $(build_HEADERZ)'; \
+	for f in $$foo; do \
+		f=`basename $$f`; \
+		if test -f "$(srcdir)/$$f"; then file="$(srcdir)/$$f"; \
+		else file="$$f"; fi; \
+		if cmp -s  $$file $(buildinclude)/$$f 2> /dev/null ; then \
+		: ; else \
+			echo " $(CP) $$file $(buildinclude)/$$f"; \
+			$(CP) $$file $(buildinclude)/$$f; \
+		fi ; \
+	done ; \
+	foo='$(nobase_include_HEADERS)'; \
+	for f in $$foo; do \
+		if test -f "$(srcdir)/$$f"; then file="$(srcdir)/$$f"; \
+		else file="$$f"; fi; \
+		$(mkdir_p) $(buildinclude)/`dirname $$f` ; \
+		if cmp -s  $$file $(buildinclude)/$$f 2> /dev/null ; then \
+		: ; else \
+			echo " $(CP) $$file $(buildinclude)/$$f"; \
+			$(CP) $$file $(buildinclude)/$$f; \
+		fi ; \
+	done
+
+all-local: install-build-headers
+
+check-local::
+	@if test '$(CHECK_LOCAL)' = "no-check-local"; then \
+	  foo=''; elif test '$(CHECK_LOCAL)'; then \
+	  foo='$(CHECK_LOCAL)'; else \
+	  foo='$(PROGRAMS)'; fi; \
+	  if test "$$foo"; then \
+	  failed=0; all=0; \
+	  for i in $$foo; do \
+	    all=`expr $$all + 1`; \
+	    if (./$$i --version && ./$$i --help) > /dev/null 2>&1; then \
+	      echo "PASS: $$i"; \
+	    else \
+	      echo "FAIL: $$i"; \
+	      failed=`expr $$failed + 1`; \
+	    fi; \
+	  done; \
+	  if test "$$failed" -eq 0; then \
+	    banner="All $$all tests passed"; \
+	  else \
+	    banner="$$failed of $$all tests failed"; \
+	  fi; \
+	  dashes=`echo "$$banner" | sed s/./=/g`; \
+	  echo "$$dashes"; \
+	  echo "$$banner"; \
+	  echo "$$dashes"; \
+	  test "$$failed" -eq 0 || exit 1; \
+	fi
+
+.x.c:
+	@cmp -s $< $@ 2> /dev/null || cp $< $@
+
+.hx.h:
+	@cmp -s $< $@ 2> /dev/null || cp $< $@
+#NROFF_MAN = nroff -man
+.1.cat1:
+	$(NROFF_MAN) $< > $@
+.3.cat3:
+	$(NROFF_MAN) $< > $@
+.5.cat5:
+	$(NROFF_MAN) $< > $@
+.8.cat8:
+	$(NROFF_MAN) $< > $@
+
+dist-cat1-mans:
+	@foo='$(man1_MANS)'; \
+	bar='$(man_MANS)'; \
+	for i in $$bar; do \
+	case $$i in \
+	*.1) foo="$$foo $$i";; \
+	esac; done ;\
+	for i in $$foo; do \
+		x=`echo $$i | sed 's/\.[^.]*$$/.cat1/'`; \
+		echo "$(NROFF_MAN) $(srcdir)/$$i > $(distdir)/$$x"; \
+		$(NROFF_MAN) $(srcdir)/$$i > $(distdir)/$$x; \
+	done
+
+dist-cat3-mans:
+	@foo='$(man3_MANS)'; \
+	bar='$(man_MANS)'; \
+	for i in $$bar; do \
+	case $$i in \
+	*.3) foo="$$foo $$i";; \
+	esac; done ;\
+	for i in $$foo; do \
+		x=`echo $$i | sed 's/\.[^.]*$$/.cat3/'`; \
+		echo "$(NROFF_MAN) $(srcdir)/$$i > $(distdir)/$$x"; \
+		$(NROFF_MAN) $(srcdir)/$$i > $(distdir)/$$x; \
+	done
+
+dist-cat5-mans:
+	@foo='$(man5_MANS)'; \
+	bar='$(man_MANS)'; \
+	for i in $$bar; do \
+	case $$i in \
+	*.5) foo="$$foo $$i";; \
+	esac; done ;\
+	for i in $$foo; do \
+		x=`echo $$i | sed 's/\.[^.]*$$/.cat5/'`; \
+		echo "$(NROFF_MAN) $(srcdir)/$$i > $(distdir)/$$x"; \
+		$(NROFF_MAN) $(srcdir)/$$i > $(distdir)/$$x; \
+	done
+
+dist-cat8-mans:
+	@foo='$(man8_MANS)'; \
+	bar='$(man_MANS)'; \
+	for i in $$bar; do \
+	case $$i in \
+	*.8) foo="$$foo $$i";; \
+	esac; done ;\
+	for i in $$foo; do \
+		x=`echo $$i | sed 's/\.[^.]*$$/.cat8/'`; \
+		echo "$(NROFF_MAN) $(srcdir)/$$i > $(distdir)/$$x"; \
+		$(NROFF_MAN) $(srcdir)/$$i > $(distdir)/$$x; \
+	done
+
+dist-hook: dist-cat1-mans dist-cat3-mans dist-cat5-mans dist-cat8-mans
+
+install-cat-mans:
+	$(SHELL) $(top_srcdir)/cf/install-catman.sh install "$(INSTALL_DATA)" "$(mkinstalldirs)" "$(srcdir)" "$(DESTDIR)$(mandir)" '$(CATMANEXT)' $(man_MANS) $(man1_MANS) $(man3_MANS) $(man5_MANS) $(man8_MANS)
+
+uninstall-cat-mans:
+	$(SHELL) $(top_srcdir)/cf/install-catman.sh uninstall "$(INSTALL_DATA)" "$(mkinstalldirs)" "$(srcdir)" "$(DESTDIR)$(mandir)" '$(CATMANEXT)' $(man_MANS) $(man1_MANS) $(man3_MANS) $(man5_MANS) $(man8_MANS)
+
+install-data-hook: install-cat-mans
+uninstall-hook: uninstall-cat-mans
+
+.et.h:
+	$(COMPILE_ET) $<
+.et.c:
+	$(COMPILE_ET) $<
+
+#
+# Useful target for debugging
+#
+
+check-valgrind:
+	tobjdir=`cd $(top_builddir) && pwd` ; \
+	tsrcdir=`cd $(top_srcdir) && pwd` ; \
+	env TESTS_ENVIRONMENT="$${tsrcdir}/cf/maybe-valgrind.sh -s $${tsrcdir} -o $${tobjdir}" make check
+
+#
+# Target to please samba build farm, builds distfiles in-tree.
+# Will break when automake changes...
+#
+
+distdir-in-tree: $(DISTFILES) $(INFO_DEPS)
+	list='$(DIST_SUBDIRS)'; for subdir in $$list; do \
+	  if test "$$subdir" != .; then \
+	  (cd $$subdir && $(MAKE) $(AM_MAKEFLAGS) distdir-in-tree) ; \
+	  fi ; \
+	done
+
+@have_gcd_TRUE@heim_ipc.h heim_ipcUser.c heim_ipcServer.c heim_ipcServer.h: heim_ipc.defs
+@have_gcd_TRUE@	mig -header heim_ipc.h -user heim_ipcUser.c -sheader heim_ipcServer.h -server heim_ipcServer.c -I$(srcdir) $(srcdir)/heim_ipc.defs
+
+@have_gcd_TRUE@heim_ipc_async.h heim_ipc_asyncUser.c heim_ipc_asyncServer.c heim_ipc_asyncServer.h: heim_ipc_async.defs
+@have_gcd_TRUE@	mig -header heim_ipc_async.h -user heim_ipc_asyncUser.c -sheader heim_ipc_asyncServer.h -server heim_ipc_asyncServer.c -I$(srcdir) $(srcdir)/heim_ipc_async.defs
+
+@have_gcd_TRUE@heim_ipc_reply.h heim_ipc_replyUser.c: heim_ipc_reply.defs
+@have_gcd_TRUE@	mig -header heim_ipc_reply.h -user heim_ipc_replyUser.c -sheader /dev/null -server /dev/null -I$(srcdir) $(srcdir)/heim_ipc_reply.defs
+
+@have_gcd_TRUE@$(srcdir)/client.c: $(built_ipcc)
+@have_gcd_TRUE@$(srcdir)/server.c: $(built_ipcs)
+
+# 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/lib/ipc/client.c b/lib/ipc/client.c
new file mode 100644
index 000000000000..bb7d9750bffa
--- /dev/null
+++ b/lib/ipc/client.c
@@ -0,0 +1,574 @@
+/*
+ * Copyright (c) 2009 Kungliga Tekniska Högskolan
+ * (Royal Institute of Technology, Stockholm, Sweden).
+ * All rights reserved.
+ *
+ * Portions Copyright (c) 2009 Apple Inc. All rights reserved.
+ *
+ * Redistribution and use in source and binary forms, with or without
+ * modification, are permitted provided that the following conditions
+ * are met:
+ *
+ * 1. Redistributions of source code must retain the above copyright
+ *    notice, this list of conditions and the following disclaimer.
+ *
+ * 2. Redistributions in binary form must reproduce the above copyright
+ *    notice, this list of conditions and the following disclaimer in the
+ *    documentation and/or other materials provided with the distribution.
+ *
+ * 3. Neither the name of the Institute nor the names of its contributors
+ *    may be used to endorse or promote products derived from this software
+ *    without specific prior written permission.
+ *
+ * THIS SOFTWARE IS PROVIDED BY THE INSTITUTE AND CONTRIBUTORS ``AS IS'' AND
+ * ANY EXPRESS OR IMPLIED WARRANTIES, INCLUDING, BUT NOT LIMITED TO, THE
+ * IMPLIED WARRANTIES OF MERCHANTABILITY AND FITNESS FOR A PARTICULAR PURPOSE
+ * ARE DISCLAIMED.  IN NO EVENT SHALL THE INSTITUTE OR CONTRIBUTORS BE LIABLE
+ * FOR ANY DIRECT, INDIRECT, INCIDENTAL, SPECIAL, EXEMPLARY, OR CONSEQUENTIAL
+ * DAMAGES (INCLUDING, BUT NOT LIMITED TO, PROCUREMENT OF SUBSTITUTE GOODS
+ * OR SERVICES; LOSS OF USE, DATA, OR PROFITS; OR BUSINESS INTERRUPTION)
+ * HOWEVER CAUSED AND ON ANY THEORY OF LIABILITY, WHETHER IN CONTRACT, STRICT
+ * LIABILITY, OR TORT (INCLUDING NEGLIGENCE OR OTHERWISE) ARISING IN ANY WAY
+ * OUT OF THE USE OF THIS SOFTWARE, EVEN IF ADVISED OF THE POSSIBILITY OF
+ * SUCH DAMAGE.
+ */
+
+#include "hi_locl.h"
+
+#if defined(__APPLE__) && defined(HAVE_GCD)
+
+#include "heim_ipc.h"
+#include "heim_ipc_asyncServer.h"
+
+#include <dispatch/dispatch.h>
+#include <mach/mach.h>
+
+static dispatch_once_t jobqinited = 0;
+static dispatch_queue_t jobq = NULL;
+static dispatch_queue_t syncq;
+
+struct mach_ctx {
+    mach_port_t server;
+    char *name;
+};
+
+static int
+mach_release(void *ctx);
+
+static int
+mach_init(const char *service, void **ctx)
+{
+    struct mach_ctx *ipc;
+    mach_port_t sport;
+    int ret;
+
+    dispatch_once(&jobqinited, ^{
+	    jobq = dispatch_get_global_queue(DISPATCH_QUEUE_PRIORITY_DEFAULT, 0);
+	    syncq = dispatch_queue_create("heim-ipc-syncq", NULL);
+	});
+
+    ret = bootstrap_look_up(bootstrap_port, service, &sport);
+    if (ret)
+	return ret;
+
+    ipc = malloc(sizeof(*ipc));
+    if (ipc == NULL) {
+	mach_port_destroy(mach_task_self(), sport);
+	return ENOMEM;
+    }
+
+    ipc->server = sport;
+    ipc->name = strdup(service);
+    if (ipc->name == NULL) {
+	mach_release(ipc);
+	return ENOMEM;
+    }
+
+    *ctx = ipc;
+
+    return 0;
+}
+
+static int
+mach_ipc(void *ctx,
+	 const heim_idata *request, heim_idata *response,
+	 heim_icred *cred)
+{
+    struct mach_ctx *ipc = ctx;
+    heim_ipc_message_inband_t requestin;
+    mach_msg_type_number_t requestin_length = 0;
+    heim_ipc_message_outband_t requestout = NULL;
+    mach_msg_type_number_t requestout_length = 0;
+    heim_ipc_message_inband_t replyin;
+    mach_msg_type_number_t replyin_length;
+    heim_ipc_message_outband_t replyout;
+    mach_msg_type_number_t replyout_length;
+    int ret, errorcode, retries = 0;
+
+    memcpy(requestin, request->data, request->length);
+    requestin_length = request->length;
+
+    while (retries < 2) {
+	__block mach_port_t sport;
+
+	dispatch_sync(syncq, ^{ sport = ipc->server; });
+
+	ret = mheim_ipc_call(sport,
+			     requestin, requestin_length,
+			     requestout, requestout_length,
+			     &errorcode,
+			     replyin, &replyin_length,
+			     &replyout, &replyout_length);
+	if (ret == MACH_SEND_INVALID_DEST) {
+	    mach_port_t nport;
+	    /* race other threads to get a new port */
+	    ret = bootstrap_look_up(bootstrap_port, ipc->name, &nport);
+	    if (ret)
+		return ret;
+	    dispatch_sync(syncq, ^{
+		    /* check if we lost the race to lookup the port */
+		    if (sport != ipc->server) {
+			mach_port_deallocate(mach_task_self(), nport);
+		    } else {
+			mach_port_deallocate(mach_task_self(), ipc->server);
+			ipc->server = nport;
+		    }
+		});
+	    retries++;
+	} else if (ret) {
+	    return ret;
+	} else
+	    break;
+    }
+    if (retries >= 2)
+	return EINVAL;
+
+    if (errorcode) {
+	if (replyout_length)
+	    vm_deallocate (mach_task_self (), (vm_address_t) replyout,
+			   replyout_length);
+	return errorcode;
+    }
+
+    if (replyout_length) {
+	response->data = malloc(replyout_length);
+	if (response->data == NULL) {
+	    vm_deallocate (mach_task_self (), (vm_address_t) replyout,
+			   replyout_length);
+	    return ENOMEM;
+	}
+	memcpy(response->data, replyout, replyout_length);
+	response->length = replyout_length;
+	vm_deallocate (mach_task_self (), (vm_address_t) replyout,
+		       replyout_length);
+    } else {
+	response->data = malloc(replyin_length);
+	if (response->data == NULL)
+	    return ENOMEM;
+	memcpy(response->data, replyin, replyin_length);
+	response->length = replyin_length;
+    }
+
+    return 0;
+}
+
+struct async_client {
+    mach_port_t mp;
+    dispatch_source_t source;
+    dispatch_queue_t queue;
+    void (*func)(void *, int, heim_idata *, heim_icred);
+    void *userctx;
+};
+
+kern_return_t
+mheim_ado_acall_reply(mach_port_t server_port,
+		      audit_token_t client_creds,
+		      int returnvalue,
+		      heim_ipc_message_inband_t replyin,
+		      mach_msg_type_number_t replyinCnt,
+		      heim_ipc_message_outband_t replyout,
+		      mach_msg_type_number_t replyoutCnt)
+{
+    struct async_client *c = dispatch_get_context(dispatch_get_current_queue());
+    heim_idata response;
+
+    if (returnvalue) {
+	response.data = NULL;
+	response.length = 0;
+    } else if (replyoutCnt) {
+	response.data = replyout;
+	response.length = replyoutCnt;
+    } else {
+	response.data = replyin;
+	response.length = replyinCnt;
+    }
+
+    (*c->func)(c->userctx, returnvalue, &response, NULL);
+
+    if (replyoutCnt)
+	vm_deallocate (mach_task_self (), (vm_address_t) replyout, replyoutCnt);
+
+    dispatch_source_cancel(c->source);
+
+    return 0;
+
+
+}
+
+
+static int
+mach_async(void *ctx, const heim_idata *request, void *userctx,
+	   void (*func)(void *, int, heim_idata *, heim_icred))
+{
+    struct mach_ctx *ipc = ctx;
+    heim_ipc_message_inband_t requestin;
+    mach_msg_type_number_t requestin_length = 0;
+    heim_ipc_message_outband_t requestout = NULL;
+    mach_msg_type_number_t requestout_length = 0;
+    int ret, retries = 0;
+    kern_return_t kr;
+    struct async_client *c;
+
+    /* first create the service that will catch the reply from the server */
+    /* XXX these object should be cached and reused */
+
+    c = malloc(sizeof(*c));
+    if (c == NULL)
+	return ENOMEM;
+
+    kr = mach_port_allocate(mach_task_self(), MACH_PORT_RIGHT_RECEIVE, &c->mp);
+    if (kr != KERN_SUCCESS)
+	return EINVAL;
+
+    c->queue = dispatch_queue_create("heim-ipc-async-client", NULL);
+    c->source = dispatch_source_create(DISPATCH_SOURCE_TYPE_MACH_RECV, c->mp, 0, c->queue);
+    dispatch_set_context(c->queue, c);
+
+    dispatch_source_set_event_handler(c->source, ^{
+	    dispatch_mig_server(c->source,
+				sizeof(union __RequestUnion__mheim_ado_mheim_aipc_subsystem),
+				mheim_aipc_server);
+	});
+
+    dispatch_source_set_cancel_handler(c->source, ^{
+	    mach_port_mod_refs(mach_task_self(), c->mp,
+			       MACH_PORT_RIGHT_RECEIVE, -1);
+	    dispatch_release(c->queue);
+	    dispatch_release(c->source);
+	    free(c);
+	});
+
+    c->func = func;
+    c->userctx = userctx;
+
+    dispatch_resume(c->source);
+
+    /* ok, send the message */
+
+    memcpy(requestin, request->data, request->length);
+    requestin_length = request->length;
+
+    while (retries < 2) {
+	__block mach_port_t sport;
+
+	dispatch_sync(syncq, ^{ sport = ipc->server; });
+
+	ret = mheim_ipc_call_request(sport, c->mp,
+				     requestin, requestin_length,
+				     requestout, requestout_length);
+	if (ret == MACH_SEND_INVALID_DEST) {
+	    ret = bootstrap_look_up(bootstrap_port, ipc->name, &sport);
+	    if (ret) {
+		dispatch_source_cancel(c->source);
+		return ret;
+	    }
+	    mach_port_deallocate(mach_task_self(), ipc->server);
+	    ipc->server = sport;
+	    retries++;
+	} else if (ret) {
+	    dispatch_source_cancel(c->source);
+	    return ret;
+	} else
+	    break;
+    }
+    if (retries >= 2) {
+	dispatch_source_cancel(c->source);
+	return EINVAL;
+    }
+
+    return 0;
+}
+
+static int
+mach_release(void *ctx)
+{
+    struct mach_ctx *ipc = ctx;
+    if (ipc->server != MACH_PORT_NULL)
+	mach_port_deallocate(mach_task_self(), ipc->server);
+    free(ipc->name);
+    free(ipc);
+    return 0;
+}
+
+#endif
+
+struct path_ctx {
+    char *path;
+    int fd;
+};
+
+static int common_release(void *);
+
+static int
+connect_unix(struct path_ctx *s)
+{
+    struct sockaddr_un addr;
+
+    addr.sun_family = AF_UNIX;
+    strlcpy(addr.sun_path, s->path, sizeof(addr.sun_path));
+
+    s->fd = socket(AF_UNIX, SOCK_STREAM, 0);
+    if (s->fd < 0)
+	return errno;
+    rk_cloexec(s->fd);
+
+    if (connect(s->fd, (struct sockaddr *)&addr, sizeof(addr)) != 0) {
+	close(s->fd);
+	return errno;
+    }
+
+    return 0;
+}
+
+static int
+common_path_init(const char *service,
+		 const char *file,
+		 void **ctx)
+{
+    struct path_ctx *s;
+
+    s = malloc(sizeof(*s));
+    if (s == NULL)
+	return ENOMEM;
+    s->fd = -1;
+
+    asprintf(&s->path, "/var/run/.heim_%s-%s", service, file);
+
+    *ctx = s;
+
+    return 0;
+}
+
+static int
+unix_socket_init(const char *service,
+		 void **ctx)
+{
+    int ret;
+
+    ret = common_path_init(service, "socket", ctx);
+    if (ret)
+	return ret;
+    ret = connect_unix(*ctx);
+    if (ret)
+	common_release(*ctx);
+
+    return ret;
+}
+
+static int
+unix_socket_ipc(void *ctx,
+		const heim_idata *req, heim_idata *rep,
+		heim_icred *cred)
+{
+    struct path_ctx *s = ctx;
+    uint32_t len = htonl(req->length);
+    uint32_t rv;
+    int retval;
+
+    if (cred)
+	*cred = NULL;
+
+    rep->data = NULL;
+    rep->length = 0;
+
+    if (net_write(s->fd, &len, sizeof(len)) != sizeof(len))
+	return -1;
+    if (net_write(s->fd, req->data, req->length) != (ssize_t)req->length)
+	return -1;
+
+    if (net_read(s->fd, &len, sizeof(len)) != sizeof(len))
+	return -1;
+    if (net_read(s->fd, &rv, sizeof(rv)) != sizeof(rv))
+	return -1;
+    retval = ntohl(rv);
+
+    rep->length = ntohl(len);
+    if (rep->length > 0) {
+	rep->data = malloc(rep->length);
+	if (rep->data == NULL)
+	    return -1;
+	if (net_read(s->fd, rep->data, rep->length) != (ssize_t)rep->length)
+	    return -1;
+    } else
+	rep->data = NULL;
+
+    return retval;
+}
+
+int
+common_release(void *ctx)
+{
+    struct path_ctx *s = ctx;
+    if (s->fd >= 0)
+	close(s->fd);
+    free(s->path);
+    free(s);
+    return 0;
+}
+
+#ifdef HAVE_DOOR
+
+static int
+door_init(const char *service,
+	  void **ctx)
+{
+    ret = common_path_init(context, service, "door", ctx);
+    if (ret)
+	return ret;
+    ret = connect_door(*ctx);
+    if (ret)
+	common_release(*ctx);
+    return ret;
+}
+
+static int
+door_ipc(void *ctx,
+	 const heim_idata *request, heim_idata *response,
+	 heim_icred *cred)
+{
+    door_arg_t arg;
+    int ret;
+
+    arg.data_ptr = request->data;
+    arg.data_size = request->length;
+    arg.desc_ptr = NULL;
+    arg.desc_num = 0;
+    arg.rbuf = NULL;
+    arg.rsize = 0;
+
+    ret = door_call(fd, &arg);
+    close(fd);
+    if (ret != 0)
+	return errno;
+
+    response->data = malloc(arg.rsize);
+    if (response->data == NULL) {
+	munmap(arg.rbuf, arg.rsize);
+	return ENOMEM;
+    }
+    memcpy(response->data, arg.rbuf, arg.rsize);
+    response->length = arg.rsize;
+    munmap(arg.rbuf, arg.rsize);
+
+    return ret;
+}
+
+#endif
+
+struct hipc_ops {
+    const char *prefix;
+    int (*init)(const char *, void **);
+    int (*release)(void *);
+    int (*ipc)(void *,const heim_idata *, heim_idata *, heim_icred *);
+    int (*async)(void *, const heim_idata *, void *,
+		 void (*)(void *, int, heim_idata *, heim_icred));
+};
+
+struct hipc_ops ipcs[] = {
+#if defined(__APPLE__) && defined(HAVE_GCD)
+    { "MACH", mach_init, mach_release, mach_ipc, mach_async },
+#endif
+#ifdef HAVE_DOOR
+    { "DOOR", door_init, common_release, door_ipc, NULL }
+#endif
+    { "UNIX", unix_socket_init, common_release, unix_socket_ipc, NULL }
+};
+
+struct heim_ipc {
+    struct hipc_ops *ops;
+    void *ctx;
+};
+
+
+int
+heim_ipc_init_context(const char *name, heim_ipc *ctx)
+{
+    unsigned int i;
+    int ret, any = 0;
+
+    for(i = 0; i < sizeof(ipcs)/sizeof(ipcs[0]); i++) {
+	size_t prefix_len = strlen(ipcs[i].prefix);
+	heim_ipc c;
+	if(strncmp(ipcs[i].prefix, name, prefix_len) == 0
+	   && name[prefix_len] == ':')  {
+	} else if (strncmp("ANY:", name, 4) == 0) {
+	    prefix_len = 3;
+	    any = 1;
+	} else
+	    continue;
+
+	c = calloc(1, sizeof(*c));
+	if (c == NULL)
+	    return ENOMEM;
+
+	c->ops = &ipcs[i];
+
+	ret = (c->ops->init)(name + prefix_len + 1, &c->ctx);
+	if (ret) {
+	    free(c);
+	    if (any)
+		continue;
+	    return ret;
+	}
+
+	*ctx = c;
+	return 0;
+    }
+
+    return ENOENT;
+}
+
+void
+heim_ipc_free_context(heim_ipc ctx)
+{
+    (ctx->ops->release)(ctx->ctx);
+    free(ctx);
+}
+
+int
+heim_ipc_call(heim_ipc ctx, const heim_idata *snd, heim_idata *rcv,
+	      heim_icred *cred)
+{
+    if (cred)
+	*cred = NULL;
+    return (ctx->ops->ipc)(ctx->ctx, snd, rcv, cred);
+}
+
+int
+heim_ipc_async(heim_ipc ctx, const heim_idata *snd, void *userctx,
+	       void (*func)(void *, int, heim_idata *, heim_icred))
+{
+    if (ctx->ops->async == NULL) {
+	heim_idata rcv;
+	heim_icred cred = NULL;
+	int ret;
+
+	ret = (ctx->ops->ipc)(ctx->ctx, snd, &rcv, &cred);
+	(*func)(userctx, ret, &rcv, cred);
+	heim_ipc_free_cred(cred);
+	free(rcv.data);
+	return ret;
+    } else {
+	return (ctx->ops->async)(ctx->ctx, snd, userctx, func);
+    }
+}
diff --git a/lib/ipc/common.c b/lib/ipc/common.c
new file mode 100644
index 000000000000..0e8f36dd2090
--- /dev/null
+++ b/lib/ipc/common.c
@@ -0,0 +1,204 @@
+/*
+ * Copyright (c) 2009 Kungliga Tekniska Högskolan
+ * (Royal Institute of Technology, Stockholm, Sweden).
+ * All rights reserved.
+ *
+ * Portions Copyright (c) 2009 Apple Inc. All rights reserved.
+ *
+ * Redistribution and use in source and binary forms, with or without
+ * modification, are permitted provided that the following conditions
+ * are met:
+ *
+ * 1. Redistributions of source code must retain the above copyright
+ *    notice, this list of conditions and the following disclaimer.
+ *
+ * 2. Redistributions in binary form must reproduce the above copyright
+ *    notice, this list of conditions and the following disclaimer in the
+ *    documentation and/or other materials provided with the distribution.
+ *
+ * 3. Neither the name of the Institute nor the names of its contributors
+ *    may be used to endorse or promote products derived from this software
+ *    without specific prior written permission.
+ *
+ * THIS SOFTWARE IS PROVIDED BY THE INSTITUTE AND CONTRIBUTORS ``AS IS'' AND
+ * ANY EXPRESS OR IMPLIED WARRANTIES, INCLUDING, BUT NOT LIMITED TO, THE
+ * IMPLIED WARRANTIES OF MERCHANTABILITY AND FITNESS FOR A PARTICULAR PURPOSE
+ * ARE DISCLAIMED.  IN NO EVENT SHALL THE INSTITUTE OR CONTRIBUTORS BE LIABLE
+ * FOR ANY DIRECT, INDIRECT, INCIDENTAL, SPECIAL, EXEMPLARY, OR CONSEQUENTIAL
+ * DAMAGES (INCLUDING, BUT NOT LIMITED TO, PROCUREMENT OF SUBSTITUTE GOODS
+ * OR SERVICES; LOSS OF USE, DATA, OR PROFITS; OR BUSINESS INTERRUPTION)
+ * HOWEVER CAUSED AND ON ANY THEORY OF LIABILITY, WHETHER IN CONTRACT, STRICT
+ * LIABILITY, OR TORT (INCLUDING NEGLIGENCE OR OTHERWISE) ARISING IN ANY WAY
+ * OUT OF THE USE OF THIS SOFTWARE, EVEN IF ADVISED OF THE POSSIBILITY OF
+ * SUCH DAMAGE.
+ */
+
+#include "hi_locl.h"
+#ifdef HAVE_GCD
+#include <dispatch/dispatch.h>
+#else
+#include "heim_threads.h"
+#endif
+
+struct heim_icred {
+    uid_t uid;
+    gid_t gid;
+    pid_t pid;
+    pid_t session;
+};
+
+void
+heim_ipc_free_cred(heim_icred cred)
+{
+    free(cred);
+}
+
+uid_t
+heim_ipc_cred_get_uid(heim_icred cred)
+{
+    return cred->uid;
+}
+
+gid_t
+heim_ipc_cred_get_gid(heim_icred cred)
+{
+    return cred->gid;
+}
+
+pid_t
+heim_ipc_cred_get_pid(heim_icred cred)
+{
+    return cred->pid;
+}
+
+pid_t
+heim_ipc_cred_get_session(heim_icred cred)
+{
+    return cred->session;
+}
+
+
+int
+_heim_ipc_create_cred(uid_t uid, gid_t gid, pid_t pid, pid_t session, heim_icred *cred)
+{
+    *cred = calloc(1, sizeof(**cred));
+    if (*cred == NULL)
+	return ENOMEM;
+    (*cred)->uid = uid;
+    (*cred)->gid = gid;
+    (*cred)->pid = pid;
+    (*cred)->session = session;
+    return 0;
+}
+
+#ifndef HAVE_GCD
+struct heim_isemaphore {
+    HEIMDAL_MUTEX mutex;
+    pthread_cond_t cond;
+    long counter;
+};
+#endif
+
+heim_isemaphore
+heim_ipc_semaphore_create(long value)
+{
+#ifdef HAVE_GCD
+    return (heim_isemaphore)dispatch_semaphore_create(value);
+#elif !defined(ENABLE_PTHREAD_SUPPORT)
+    heim_assert(0, "no semaphore support w/o pthreads");
+    return NULL;
+#else
+    heim_isemaphore s = malloc(sizeof(*s));
+    if (s == NULL)
+	return NULL;
+    HEIMDAL_MUTEX_init(&s->mutex);
+    pthread_cond_init(&s->cond, NULL);
+    s->counter = value;
+    return s;
+#endif
+}
+
+long
+heim_ipc_semaphore_wait(heim_isemaphore s, time_t t)
+{
+#ifdef HAVE_GCD
+    uint64_t timeout;
+    if (t == HEIM_IPC_WAIT_FOREVER)
+	timeout = DISPATCH_TIME_FOREVER;
+    else
+	timeout = (uint64_t)t * NSEC_PER_SEC;
+
+    return dispatch_semaphore_wait((dispatch_semaphore_t)s, timeout);
+#elif !defined(ENABLE_PTHREAD_SUPPORT)
+    heim_assert(0, "no semaphore support w/o pthreads");
+    return 0;
+#else
+    HEIMDAL_MUTEX_lock(&s->mutex);
+    /* if counter hits below zero, we get to wait */
+    if (--s->counter < 0) {
+	int ret;
+
+	if (t == HEIM_IPC_WAIT_FOREVER)
+	    ret = pthread_cond_wait(&s->cond, &s->mutex);
+	else {
+	    struct timespec ts;
+	    ts.tv_sec = t;
+	    ts.tv_nsec = 0;
+	    ret = pthread_cond_timedwait(&s->cond, &s->mutex, &ts);
+	}
+	if (ret) {
+	    HEIMDAL_MUTEX_unlock(&s->mutex);
+	    return errno;
+	}
+    }
+    HEIMDAL_MUTEX_unlock(&s->mutex);
+
+    return 0;
+#endif
+}
+
+long
+heim_ipc_semaphore_signal(heim_isemaphore s)
+{
+#ifdef HAVE_GCD
+    return dispatch_semaphore_signal((dispatch_semaphore_t)s);
+#elif !defined(ENABLE_PTHREAD_SUPPORT)
+    heim_assert(0, "no semaphore support w/o pthreads");
+    return EINVAL;
+#else
+    int wakeup;
+    HEIMDAL_MUTEX_lock(&s->mutex);
+    wakeup = (++s->counter == 0) ;
+    HEIMDAL_MUTEX_unlock(&s->mutex);
+    if (wakeup)
+	pthread_cond_signal(&s->cond);
+    return 0;
+#endif
+}
+
+void
+heim_ipc_semaphore_release(heim_isemaphore s)
+{
+#ifdef HAVE_GCD
+    dispatch_release((dispatch_semaphore_t)s);
+#elif !defined(ENABLE_PTHREAD_SUPPORT)
+    heim_assert(0, "no semaphore support w/o pthreads");
+#else
+    HEIMDAL_MUTEX_lock(&s->mutex);
+    if (s->counter != 0)
+	abort();
+    HEIMDAL_MUTEX_unlock(&s->mutex);
+    HEIMDAL_MUTEX_destroy(&s->mutex);
+    pthread_cond_destroy(&s->cond);
+    free(s);
+#endif
+}
+
+void
+heim_ipc_free_data(heim_idata *data)
+{
+    if (data->data)
+	free(data->data);
+    data->data = NULL;
+    data->length = 0;
+}
diff --git a/lib/ipc/heim-ipc.h b/lib/ipc/heim-ipc.h
new file mode 100644
index 000000000000..6fbf309f7cd4
--- /dev/null
+++ b/lib/ipc/heim-ipc.h
@@ -0,0 +1,130 @@
+/*
+ * Copyright (c) 2009 Kungliga Tekniska Högskolan
+ * (Royal Institute of Technology, Stockholm, Sweden).
+ * All rights reserved.
+ *
+ * Portions Copyright (c) 2009 Apple Inc. All rights reserved.
+ *
+ * Redistribution and use in source and binary forms, with or without
+ * modification, are permitted provided that the following conditions
+ * are met:
+ *
+ * 1. Redistributions of source code must retain the above copyright
+ *    notice, this list of conditions and the following disclaimer.
+ *
+ * 2. Redistributions in binary form must reproduce the above copyright
+ *    notice, this list of conditions and the following disclaimer in the
+ *    documentation and/or other materials provided with the distribution.
+ *
+ * 3. Neither the name of the Institute nor the names of its contributors
+ *    may be used to endorse or promote products derived from this software
+ *    without specific prior written permission.
+ *
+ * THIS SOFTWARE IS PROVIDED BY THE INSTITUTE AND CONTRIBUTORS ``AS IS'' AND
+ * ANY EXPRESS OR IMPLIED WARRANTIES, INCLUDING, BUT NOT LIMITED TO, THE
+ * IMPLIED WARRANTIES OF MERCHANTABILITY AND FITNESS FOR A PARTICULAR PURPOSE
+ * ARE DISCLAIMED.  IN NO EVENT SHALL THE INSTITUTE OR CONTRIBUTORS BE LIABLE
+ * FOR ANY DIRECT, INDIRECT, INCIDENTAL, SPECIAL, EXEMPLARY, OR CONSEQUENTIAL
+ * DAMAGES (INCLUDING, BUT NOT LIMITED TO, PROCUREMENT OF SUBSTITUTE GOODS
+ * OR SERVICES; LOSS OF USE, DATA, OR PROFITS; OR BUSINESS INTERRUPTION)
+ * HOWEVER CAUSED AND ON ANY THEORY OF LIABILITY, WHETHER IN CONTRACT, STRICT
+ * LIABILITY, OR TORT (INCLUDING NEGLIGENCE OR OTHERWISE) ARISING IN ANY WAY
+ * OUT OF THE USE OF THIS SOFTWARE, EVEN IF ADVISED OF THE POSSIBILITY OF
+ * SUCH DAMAGE.
+ */
+
+#include <asn1-common.h>
+
+typedef struct heim_ipc *heim_ipc;
+typedef struct heim_sipc *heim_sipc;
+typedef struct heim_icred *heim_icred;
+typedef struct heim_isemaphore *heim_isemaphore;
+typedef struct heim_octet_string heim_idata;
+typedef struct heim_sipc_call *heim_sipc_call;
+
+/* common */
+
+void
+heim_ipc_free_cred(heim_icred);
+
+uid_t
+heim_ipc_cred_get_uid(heim_icred);
+
+gid_t
+heim_ipc_cred_get_gid(heim_icred);
+
+pid_t
+heim_ipc_cred_get_pid(heim_icred);
+
+pid_t
+heim_ipc_cred_get_session(heim_icred);
+
+void
+heim_ipc_main(void);
+
+heim_isemaphore
+heim_ipc_semaphore_create(long);
+
+long
+heim_ipc_semaphore_wait(heim_isemaphore, time_t);
+
+long
+heim_ipc_semaphore_signal(heim_isemaphore);
+
+void
+heim_ipc_semaphore_release(heim_isemaphore);
+
+#define HEIM_IPC_WAIT_FOREVER ((time_t)-1)
+
+void
+heim_ipc_free_data(heim_idata *);
+
+/* client */
+
+int
+heim_ipc_init_context(const char *, heim_ipc *);
+
+void
+heim_ipc_free_context(heim_ipc);
+
+int
+heim_ipc_call(heim_ipc, const heim_idata *, heim_idata *, heim_icred *);
+
+int
+heim_ipc_async(heim_ipc, const heim_idata *, void *, void (*func)(void *, int, heim_idata *, heim_icred));
+
+/* server */
+
+#define HEIM_SIPC_TYPE_IPC		1
+#define HEIM_SIPC_TYPE_UINT32		2
+#define HEIM_SIPC_TYPE_HTTP		4
+
+typedef void
+(*heim_ipc_complete)(heim_sipc_call, int, heim_idata *);
+
+typedef void
+(*heim_ipc_callback)(void *, const heim_idata *,
+		     const heim_icred, heim_ipc_complete, heim_sipc_call);
+
+
+int
+heim_sipc_launchd_mach_init(const char *, heim_ipc_callback,
+			    void *, heim_sipc *);
+
+int
+heim_sipc_stream_listener(int, int, heim_ipc_callback,
+			  void *, heim_sipc *);
+
+int
+heim_sipc_service_unix(const char *, heim_ipc_callback,
+		       void *, heim_sipc *);
+
+
+void
+heim_sipc_timeout(time_t);
+
+void
+heim_sipc_set_timeout_handler(void (*)(void));
+
+void
+heim_sipc_free_context(heim_sipc);
diff --git a/lib/ipc/heim_ipc.defs b/lib/ipc/heim_ipc.defs
new file mode 100644
index 000000000000..ae84791375d3
--- /dev/null
+++ b/lib/ipc/heim_ipc.defs
@@ -0,0 +1,66 @@
+/*
+ * Copyright (c) 2009 Kungliga Tekniska Högskolan
+ * (Royal Institute of Technology, Stockholm, Sweden).
+ * All rights reserved.
+ *
+ * Portions Copyright (c) 2009 Apple Inc. All rights reserved.
+ *
+ * Redistribution and use in source and binary forms, with or without
+ * modification, are permitted provided that the following conditions
+ * are met:
+ *
+ * 1. Redistributions of source code must retain the above copyright
+ *    notice, this list of conditions and the following disclaimer.
+ *
+ * 2. Redistributions in binary form must reproduce the above copyright
+ *    notice, this list of conditions and the following disclaimer in the
+ *    documentation and/or other materials provided with the distribution.
+ *
+ * 3. Neither the name of the Institute nor the names of its contributors
+ *    may be used to endorse or promote products derived from this software
+ *    without specific prior written permission.
+ *
+ * THIS SOFTWARE IS PROVIDED BY THE INSTITUTE AND CONTRIBUTORS ``AS IS'' AND
+ * ANY EXPRESS OR IMPLIED WARRANTIES, INCLUDING, BUT NOT LIMITED TO, THE
+ * IMPLIED WARRANTIES OF MERCHANTABILITY AND FITNESS FOR A PARTICULAR PURPOSE
+ * ARE DISCLAIMED.  IN NO EVENT SHALL THE INSTITUTE OR CONTRIBUTORS BE LIABLE
+ * FOR ANY DIRECT, INDIRECT, INCIDENTAL, SPECIAL, EXEMPLARY, OR CONSEQUENTIAL
+ * DAMAGES (INCLUDING, BUT NOT LIMITED TO, PROCUREMENT OF SUBSTITUTE GOODS
+ * OR SERVICES; LOSS OF USE, DATA, OR PROFITS; OR BUSINESS INTERRUPTION)
+ * HOWEVER CAUSED AND ON ANY THEORY OF LIABILITY, WHETHER IN CONTRACT, STRICT
+ * LIABILITY, OR TORT (INCLUDING NEGLIGENCE OR OTHERWISE) ARISING IN ANY WAY
+ * OUT OF THE USE OF THIS SOFTWARE, EVEN IF ADVISED OF THE POSSIBILITY OF
+ * SUCH DAMAGE.
+ */
+
+#include <mach/std_types.defs>
+#include <mach/mach_types.defs>
+
+type heim_ipc_message_inband_t = array [ * : 2048 ] of char;
+type heim_ipc_message_outband_t = array [] of char;
+
+import "heim_ipc_types.h";
+
+subsystem mheim_ipc 1;
+userprefix mheim_ipc_;
+serverprefix mheim_do_;
+
+routine call(
+				server_port	: mach_port_t;
+		ServerAuditToken client_creds	: audit_token_t;
+		sreplyport	reply_port	: mach_port_make_send_once_t;
+		in		requestin	: heim_ipc_message_inband_t;
+		in		requestout	: heim_ipc_message_outband_t;
+		out		returnvalue	: int;
+		out		replyin		: heim_ipc_message_inband_t;
+		out		replyout	: heim_ipc_message_outband_t, dealloc);
+
+simpleroutine call_request(
+				server_port	: mach_port_t;
+		ServerAuditToken client_creds	: audit_token_t;
+		in		reply_to	: mach_port_make_send_once_t;
+		in		requestin	: heim_ipc_message_inband_t;
+		in		requestout	: heim_ipc_message_outband_t);
+
+
+
diff --git a/lib/ipc/heim_ipc_async.defs b/lib/ipc/heim_ipc_async.defs
new file mode 100644
index 000000000000..73157c0d1ae5
--- /dev/null
+++ b/lib/ipc/heim_ipc_async.defs
@@ -0,0 +1,56 @@
+/*
+ * Copyright (c) 2009 Kungliga Tekniska Högskolan
+ * (Royal Institute of Technology, Stockholm, Sweden).
+ * All rights reserved.
+ *
+ * Portions Copyright (c) 2009 Apple Inc. All rights reserved.
+ *
+ * Redistribution and use in source and binary forms, with or without
+ * modification, are permitted provided that the following conditions
+ * are met:
+ *
+ * 1. Redistributions of source code must retain the above copyright
+ *    notice, this list of conditions and the following disclaimer.
+ *
+ * 2. Redistributions in binary form must reproduce the above copyright
+ *    notice, this list of conditions and the following disclaimer in the
+ *    documentation and/or other materials provided with the distribution.
+ *
+ * 3. Neither the name of the Institute nor the names of its contributors
+ *    may be used to endorse or promote products derived from this software
+ *    without specific prior written permission.
+ *
+ * THIS SOFTWARE IS PROVIDED BY THE INSTITUTE AND CONTRIBUTORS ``AS IS'' AND
+ * ANY EXPRESS OR IMPLIED WARRANTIES, INCLUDING, BUT NOT LIMITED TO, THE
+ * IMPLIED WARRANTIES OF MERCHANTABILITY AND FITNESS FOR A PARTICULAR PURPOSE
+ * ARE DISCLAIMED.  IN NO EVENT SHALL THE INSTITUTE OR CONTRIBUTORS BE LIABLE
+ * FOR ANY DIRECT, INDIRECT, INCIDENTAL, SPECIAL, EXEMPLARY, OR CONSEQUENTIAL
+ * DAMAGES (INCLUDING, BUT NOT LIMITED TO, PROCUREMENT OF SUBSTITUTE GOODS
+ * OR SERVICES; LOSS OF USE, DATA, OR PROFITS; OR BUSINESS INTERRUPTION)
+ * HOWEVER CAUSED AND ON ANY THEORY OF LIABILITY, WHETHER IN CONTRACT, STRICT
+ * LIABILITY, OR TORT (INCLUDING NEGLIGENCE OR OTHERWISE) ARISING IN ANY WAY
+ * OUT OF THE USE OF THIS SOFTWARE, EVEN IF ADVISED OF THE POSSIBILITY OF
+ * SUCH DAMAGE.
+ */
+
+#include <mach/std_types.defs>
+#include <mach/mach_types.defs>
+
+type heim_ipc_message_inband_t = array [ * : 2048 ] of char;
+type heim_ipc_message_outband_t = array [] of char;
+
+import "heim_ipc_types.h";
+
+subsystem mheim_aipc 201;
+userprefix mheim_aipc_;
+serverprefix mheim_ado_;
+
+simpleroutine acall_reply(
+				server_port	: mach_port_move_send_once_t;
+		ServerAuditToken client_creds	: audit_token_t;
+		in		returnvalue	: int;
+		in		requestin	: heim_ipc_message_inband_t;
+		in		requestout	: heim_ipc_message_outband_t);
+
+
+
diff --git a/lib/ipc/heim_ipc_reply.defs b/lib/ipc/heim_ipc_reply.defs
new file mode 100644
index 000000000000..8209485562f0
--- /dev/null
+++ b/lib/ipc/heim_ipc_reply.defs
@@ -0,0 +1,51 @@
+/*
+ * Copyright (c) 2009 Kungliga Tekniska Högskolan
+ * (Royal Institute of Technology, Stockholm, Sweden).
+ * All rights reserved.
+ *
+ * Portions Copyright (c) 2009 Apple Inc. All rights reserved.
+ *
+ * Redistribution and use in source and binary forms, with or without
+ * modification, are permitted provided that the following conditions
+ * are met:
+ *
+ * 1. Redistributions of source code must retain the above copyright
+ *    notice, this list of conditions and the following disclaimer.
+ *
+ * 2. Redistributions in binary form must reproduce the above copyright
+ *    notice, this list of conditions and the following disclaimer in the
+ *    documentation and/or other materials provided with the distribution.
+ *
+ * 3. Neither the name of the Institute nor the names of its contributors
+ *    may be used to endorse or promote products derived from this software
+ *    without specific prior written permission.
+ *
+ * THIS SOFTWARE IS PROVIDED BY THE INSTITUTE AND CONTRIBUTORS ``AS IS'' AND
+ * ANY EXPRESS OR IMPLIED WARRANTIES, INCLUDING, BUT NOT LIMITED TO, THE
+ * IMPLIED WARRANTIES OF MERCHANTABILITY AND FITNESS FOR A PARTICULAR PURPOSE
+ * ARE DISCLAIMED.  IN NO EVENT SHALL THE INSTITUTE OR CONTRIBUTORS BE LIABLE
+ * FOR ANY DIRECT, INDIRECT, INCIDENTAL, SPECIAL, EXEMPLARY, OR CONSEQUENTIAL
+ * DAMAGES (INCLUDING, BUT NOT LIMITED TO, PROCUREMENT OF SUBSTITUTE GOODS
+ * OR SERVICES; LOSS OF USE, DATA, OR PROFITS; OR BUSINESS INTERRUPTION)
+ * HOWEVER CAUSED AND ON ANY THEORY OF LIABILITY, WHETHER IN CONTRACT, STRICT
+ * LIABILITY, OR TORT (INCLUDING NEGLIGENCE OR OTHERWISE) ARISING IN ANY WAY
+ * OUT OF THE USE OF THIS SOFTWARE, EVEN IF ADVISED OF THE POSSIBILITY OF
+ * SUCH DAMAGE.
+ */
+
+#include <mach/std_types.defs>
+#include <mach/mach_types.defs>
+
+type heim_ipc_message_inband_t = array [ * : 2048 ] of char;
+type heim_ipc_message_outband_t = array [] of char;
+
+import "heim_ipc_types.h";
+
+subsystem heim_ipc 101;
+userprefix mheim_ripc_;
+
+simpleroutine call_reply(
+				reply_port	: mach_port_move_send_once_t;
+				returnvalue	: int;
+				replyin		: heim_ipc_message_inband_t;
+				replyout	: heim_ipc_message_outband_t, dealloc);
diff --git a/lib/ipc/heim_ipc_types.h b/lib/ipc/heim_ipc_types.h
new file mode 100644
index 000000000000..c853610f1a49
--- /dev/null
+++ b/lib/ipc/heim_ipc_types.h
@@ -0,0 +1,44 @@
+/*
+ * Copyright (c) 2009 Kungliga Tekniska Högskolan
+ * (Royal Institute of Technology, Stockholm, Sweden).
+ * All rights reserved.
+ *
+ * Portions Copyright (c) 2009 Apple Inc. All rights reserved.
+ *
+ * Redistribution and use in source and binary forms, with or without
+ * modification, are permitted provided that the following conditions
+ * are met:
+ *
+ * 1. Redistributions of source code must retain the above copyright
+ *    notice, this list of conditions and the following disclaimer.
+ *
+ * 2. Redistributions in binary form must reproduce the above copyright
+ *    notice, this list of conditions and the following disclaimer in the
+ *    documentation and/or other materials provided with the distribution.
+ *
+ * 3. Neither the name of the Institute nor the names of its contributors
+ *    may be used to endorse or promote products derived from this software
+ *    without specific prior written permission.
+ *
+ * THIS SOFTWARE IS PROVIDED BY THE INSTITUTE AND CONTRIBUTORS ``AS IS'' AND
+ * ANY EXPRESS OR IMPLIED WARRANTIES, INCLUDING, BUT NOT LIMITED TO, THE
+ * IMPLIED WARRANTIES OF MERCHANTABILITY AND FITNESS FOR A PARTICULAR PURPOSE
+ * ARE DISCLAIMED.  IN NO EVENT SHALL THE INSTITUTE OR CONTRIBUTORS BE LIABLE
+ * FOR ANY DIRECT, INDIRECT, INCIDENTAL, SPECIAL, EXEMPLARY, OR CONSEQUENTIAL
+ * DAMAGES (INCLUDING, BUT NOT LIMITED TO, PROCUREMENT OF SUBSTITUTE GOODS
+ * OR SERVICES; LOSS OF USE, DATA, OR PROFITS; OR BUSINESS INTERRUPTION)
+ * HOWEVER CAUSED AND ON ANY THEORY OF LIABILITY, WHETHER IN CONTRACT, STRICT
+ * LIABILITY, OR TORT (INCLUDING NEGLIGENCE OR OTHERWISE) ARISING IN ANY WAY
+ * OUT OF THE USE OF THIS SOFTWARE, EVEN IF ADVISED OF THE POSSIBILITY OF
+ * SUCH DAMAGE.
+ */
+
+#ifndef _HEIM_IPC_TYPES_H_
+#define _HEIM_IPC_TYPES_H_
+
+#define HEIM_KCM_BOOTSTRAP_NAME "org.h5l.Kerberos.kcm"
+
+typedef char  heim_ipc_message_inband_t[2048];
+typedef char *heim_ipc_message_outband_t;
+
+#endif
diff --git a/lib/ipc/hi_locl.h b/lib/ipc/hi_locl.h
new file mode 100644
index 000000000000..7efe6ca841ee
--- /dev/null
+++ b/lib/ipc/hi_locl.h
@@ -0,0 +1,83 @@
+/*
+ * Copyright (c) 2009 Kungliga Tekniska Högskolan
+ * (Royal Institute of Technology, Stockholm, Sweden).
+ * All rights reserved.
+ *
+ * Portions Copyright (c) 2009 Apple Inc. All rights reserved.
+ *
+ * Redistribution and use in source and binary forms, with or without
+ * modification, are permitted provided that the following conditions
+ * are met:
+ *
+ * 1. Redistributions of source code must retain the above copyright
+ *    notice, this list of conditions and the following disclaimer.
+ *
+ * 2. Redistributions in binary form must reproduce the above copyright
+ *    notice, this list of conditions and the following disclaimer in the
+ *    documentation and/or other materials provided with the distribution.
+ *
+ * 3. Neither the name of the Institute nor the names of its contributors
+ *    may be used to endorse or promote products derived from this software
+ *    without specific prior written permission.
+ *
+ * THIS SOFTWARE IS PROVIDED BY THE INSTITUTE AND CONTRIBUTORS ``AS IS'' AND
+ * ANY EXPRESS OR IMPLIED WARRANTIES, INCLUDING, BUT NOT LIMITED TO, THE
+ * IMPLIED WARRANTIES OF MERCHANTABILITY AND FITNESS FOR A PARTICULAR PURPOSE
+ * ARE DISCLAIMED.  IN NO EVENT SHALL THE INSTITUTE OR CONTRIBUTORS BE LIABLE
+ * FOR ANY DIRECT, INDIRECT, INCIDENTAL, SPECIAL, EXEMPLARY, OR CONSEQUENTIAL
+ * DAMAGES (INCLUDING, BUT NOT LIMITED TO, PROCUREMENT OF SUBSTITUTE GOODS
+ * OR SERVICES; LOSS OF USE, DATA, OR PROFITS; OR BUSINESS INTERRUPTION)
+ * HOWEVER CAUSED AND ON ANY THEORY OF LIABILITY, WHETHER IN CONTRACT, STRICT
+ * LIABILITY, OR TORT (INCLUDING NEGLIGENCE OR OTHERWISE) ARISING IN ANY WAY
+ * OUT OF THE USE OF THIS SOFTWARE, EVEN IF ADVISED OF THE POSSIBILITY OF
+ * SUCH DAMAGE.
+ */
+
+#include "config.h"
+
+#include <sys/types.h>
+#include <sys/socket.h>
+#ifdef HAVE_SYS_UN_H
+#include <sys/un.h>
+#endif
+
+#include <sys/poll.h>
+
+#include <ctype.h>
+#include <stdio.h>
+#include <stdlib.h>
+#include <string.h>
+#include <errno.h>
+
+#ifdef HAVE_GETPEERUCRED
+#include <ucred.h>
+#endif
+
+#include <krb5-types.h>
+#include <asn1-common.h>
+
+#include <heimbase.h>
+#include <base64.h>
+
+#include <heim-ipc.h>
+
+#if defined(__APPLE__) && defined(HAVE_GCD)
+#include <mach/mach.h>
+#include <servers/bootstrap.h>
+#include <dispatch/dispatch.h>
+#include <bsm/libbsm.h>
+
+#ifndef __APPLE_PRIVATE__ /* awe, using private interface */
+typedef boolean_t (*dispatch_mig_callback_t)(mach_msg_header_t *message, mach_msg_header_t *reply);
+
+mach_msg_return_t
+dispatch_mig_server(dispatch_source_t ds, size_t maxmsgsz, dispatch_mig_callback_t callback);
+#endif
+
+#endif
+
+
+#include <roken.h>
+
+int
+_heim_ipc_create_cred(uid_t, gid_t, pid_t, pid_t, heim_icred *);
diff --git a/lib/ipc/server.c b/lib/ipc/server.c
new file mode 100644
index 000000000000..245f2e3c5d82
--- /dev/null
+++ b/lib/ipc/server.c
@@ -0,0 +1,1187 @@
+/*
+ * Copyright (c) 2009 Kungliga Tekniska Högskolan
+ * (Royal Institute of Technology, Stockholm, Sweden).
+ * All rights reserved.
+ *
+ * Portions Copyright (c) 2009 Apple Inc. All rights reserved.
+ *
+ * Redistribution and use in source and binary forms, with or without
+ * modification, are permitted provided that the following conditions
+ * are met:
+ *
+ * 1. Redistributions of source code must retain the above copyright
+ *    notice, this list of conditions and the following disclaimer.
+ *
+ * 2. Redistributions in binary form must reproduce the above copyright
+ *    notice, this list of conditions and the following disclaimer in the
+ *    documentation and/or other materials provided with the distribution.
+ *
+ * 3. Neither the name of the Institute nor the names of its contributors
+ *    may be used to endorse or promote products derived from this software
+ *    without specific prior written permission.
+ *
+ * THIS SOFTWARE IS PROVIDED BY THE INSTITUTE AND CONTRIBUTORS ``AS IS'' AND
+ * ANY EXPRESS OR IMPLIED WARRANTIES, INCLUDING, BUT NOT LIMITED TO, THE
+ * IMPLIED WARRANTIES OF MERCHANTABILITY AND FITNESS FOR A PARTICULAR PURPOSE
+ * ARE DISCLAIMED.  IN NO EVENT SHALL THE INSTITUTE OR CONTRIBUTORS BE LIABLE
+ * FOR ANY DIRECT, INDIRECT, INCIDENTAL, SPECIAL, EXEMPLARY, OR CONSEQUENTIAL
+ * DAMAGES (INCLUDING, BUT NOT LIMITED TO, PROCUREMENT OF SUBSTITUTE GOODS
+ * OR SERVICES; LOSS OF USE, DATA, OR PROFITS; OR BUSINESS INTERRUPTION)
+ * HOWEVER CAUSED AND ON ANY THEORY OF LIABILITY, WHETHER IN CONTRACT, STRICT
+ * LIABILITY, OR TORT (INCLUDING NEGLIGENCE OR OTHERWISE) ARISING IN ANY WAY
+ * OUT OF THE USE OF THIS SOFTWARE, EVEN IF ADVISED OF THE POSSIBILITY OF
+ * SUCH DAMAGE.
+ */
+
+#include "hi_locl.h"
+#include <assert.h>
+
+#define MAX_PACKET_SIZE (128 * 1024)
+
+struct heim_sipc {
+    int (*release)(heim_sipc ctx);
+    heim_ipc_callback callback;
+    void *userctx;
+    void *mech;
+};
+
+#if defined(__APPLE__) && defined(HAVE_GCD)
+
+#include "heim_ipcServer.h"
+#include "heim_ipc_reply.h"
+#include "heim_ipc_async.h"
+
+static dispatch_source_t timer;
+static dispatch_queue_t timerq;
+static uint64_t timeoutvalue;
+
+static dispatch_queue_t eventq;
+
+static dispatch_queue_t workq;
+
+static void
+default_timer_ev(void)
+{
+    exit(0);
+}
+
+static void (*timer_ev)(void) = default_timer_ev;
+
+static void
+set_timer(void)
+{
+    dispatch_source_set_timer(timer,
+			      dispatch_time(DISPATCH_TIME_NOW,
+					    timeoutvalue * NSEC_PER_SEC),
+			      timeoutvalue * NSEC_PER_SEC, 1000000);
+}
+
+static void
+init_globals(void)
+{
+    static dispatch_once_t once;
+    dispatch_once(&once, ^{
+	timerq = dispatch_queue_create("hiem-sipc-timer-q", NULL);
+        timer = dispatch_source_create(DISPATCH_SOURCE_TYPE_TIMER, 0, 0, timerq);
+	dispatch_source_set_event_handler(timer, ^{ timer_ev(); } );
+
+	workq = dispatch_get_global_queue(DISPATCH_QUEUE_PRIORITY_DEFAULT, 0);
+	eventq = dispatch_queue_create("heim-ipc.event-queue", NULL);
+    });
+}
+
+static void
+suspend_timer(void)
+{
+    dispatch_suspend(timer);
+}
+
+static void
+restart_timer(void)
+{
+    dispatch_sync(timerq, ^{ set_timer(); });
+    dispatch_resume(timer);
+}
+
+struct mach_service {
+    mach_port_t sport;
+    dispatch_source_t source;
+    dispatch_queue_t queue;
+};
+
+struct mach_call_ctx {
+    mach_port_t reply_port;
+    heim_icred cred;
+    heim_idata req;
+};
+
+
+static void
+mach_complete_sync(heim_sipc_call ctx, int returnvalue, heim_idata *reply)
+{
+    struct mach_call_ctx *s = (struct mach_call_ctx *)ctx;
+    heim_ipc_message_inband_t replyin;
+    mach_msg_type_number_t replyinCnt;
+    heim_ipc_message_outband_t replyout;
+    mach_msg_type_number_t replyoutCnt;
+    kern_return_t kr;
+
+    if (returnvalue) {
+	/* on error, no reply */
+	replyinCnt = 0;
+	replyout = 0; replyoutCnt = 0;
+	kr = KERN_SUCCESS;
+    } else if (reply->length < 2048) {
+	replyinCnt = reply->length;
+	memcpy(replyin, reply->data, replyinCnt);
+	replyout = 0; replyoutCnt = 0;
+	kr = KERN_SUCCESS;
+    } else {
+	replyinCnt = 0;
+	kr = vm_read(mach_task_self(),
+		     (vm_address_t)reply->data, reply->length,
+		     (vm_address_t *)&replyout, &replyoutCnt);
+    }
+
+    mheim_ripc_call_reply(s->reply_port, returnvalue,
+			  replyin, replyinCnt,
+			  replyout, replyoutCnt);
+
+    heim_ipc_free_cred(s->cred);
+    free(s->req.data);
+    free(s);
+    restart_timer();
+}
+
+static void
+mach_complete_async(heim_sipc_call ctx, int returnvalue, heim_idata *reply)
+{
+    struct mach_call_ctx *s = (struct mach_call_ctx *)ctx;
+    heim_ipc_message_inband_t replyin;
+    mach_msg_type_number_t replyinCnt;
+    heim_ipc_message_outband_t replyout;
+    mach_msg_type_number_t replyoutCnt;
+    kern_return_t kr;
+
+    if (returnvalue) {
+	/* on error, no reply */
+	replyinCnt = 0;
+	replyout = 0; replyoutCnt = 0;
+	kr = KERN_SUCCESS;
+    } else if (reply->length < 2048) {
+	replyinCnt = reply->length;
+	memcpy(replyin, reply->data, replyinCnt);
+	replyout = 0; replyoutCnt = 0;
+	kr = KERN_SUCCESS;
+    } else {
+	replyinCnt = 0;
+	kr = vm_read(mach_task_self(),
+		     (vm_address_t)reply->data, reply->length,
+		     (vm_address_t *)&replyout, &replyoutCnt);
+    }
+
+    kr = mheim_aipc_acall_reply(s->reply_port, returnvalue,
+				replyin, replyinCnt,
+				replyout, replyoutCnt);
+    heim_ipc_free_cred(s->cred);
+    free(s->req.data);
+    free(s);
+    restart_timer();
+}
+
+
+kern_return_t
+mheim_do_call(mach_port_t server_port,
+	      audit_token_t client_creds,
+	      mach_port_t reply_port,
+	      heim_ipc_message_inband_t requestin,
+	      mach_msg_type_number_t requestinCnt,
+	      heim_ipc_message_outband_t requestout,
+	      mach_msg_type_number_t requestoutCnt,
+	      int *returnvalue,
+	      heim_ipc_message_inband_t replyin,
+	      mach_msg_type_number_t *replyinCnt,
+	      heim_ipc_message_outband_t *replyout,
+	      mach_msg_type_number_t *replyoutCnt)
+{
+    heim_sipc ctx = dispatch_get_context(dispatch_get_current_queue());
+    struct mach_call_ctx *s;
+    kern_return_t kr;
+    uid_t uid;
+    gid_t gid;
+    pid_t pid;
+    au_asid_t session;
+
+    *replyout = NULL;
+    *replyoutCnt = 0;
+    *replyinCnt = 0;
+
+    s = malloc(sizeof(*s));
+    if (s == NULL)
+	return KERN_MEMORY_FAILURE; /* XXX */
+
+    s->reply_port = reply_port;
+
+    audit_token_to_au32(client_creds, NULL, &uid, &gid, NULL, NULL, &pid, &session, NULL);
+
+    kr = _heim_ipc_create_cred(uid, gid, pid, session, &s->cred);
+    if (kr) {
+	free(s);
+	return kr;
+    }
+
+    suspend_timer();
+
+    if (requestinCnt) {
+	s->req.data = malloc(requestinCnt);
+	memcpy(s->req.data, requestin, requestinCnt);
+	s->req.length = requestinCnt;
+    } else {
+	s->req.data = malloc(requestoutCnt);
+	memcpy(s->req.data, requestout, requestoutCnt);
+	s->req.length = requestoutCnt;
+    }
+
+    dispatch_async(workq, ^{
+	(ctx->callback)(ctx->userctx, &s->req, s->cred,
+			mach_complete_sync, (heim_sipc_call)s);
+    });
+
+    return MIG_NO_REPLY;
+}
+
+kern_return_t
+mheim_do_call_request(mach_port_t server_port,
+		      audit_token_t client_creds,
+		      mach_port_t reply_port,
+		      heim_ipc_message_inband_t requestin,
+		      mach_msg_type_number_t requestinCnt,
+		      heim_ipc_message_outband_t requestout,
+		      mach_msg_type_number_t requestoutCnt)
+{
+    heim_sipc ctx = dispatch_get_context(dispatch_get_current_queue());
+    struct mach_call_ctx *s;
+    kern_return_t kr;
+    uid_t uid;
+    gid_t gid;
+    pid_t pid;
+    au_asid_t session;
+
+    s = malloc(sizeof(*s));
+    if (s == NULL)
+	return KERN_MEMORY_FAILURE; /* XXX */
+
+    s->reply_port = reply_port;
+
+    audit_token_to_au32(client_creds, NULL, &uid, &gid, NULL, NULL, &pid, &session, NULL);
+
+    kr = _heim_ipc_create_cred(uid, gid, pid, session, &s->cred);
+    if (kr) {
+	free(s);
+	return kr;
+    }
+
+    suspend_timer();
+
+    if (requestinCnt) {
+	s->req.data = malloc(requestinCnt);
+	memcpy(s->req.data, requestin, requestinCnt);
+	s->req.length = requestinCnt;
+    } else {
+	s->req.data = malloc(requestoutCnt);
+	memcpy(s->req.data, requestout, requestoutCnt);
+	s->req.length = requestoutCnt;
+    }
+
+    dispatch_async(workq, ^{
+	(ctx->callback)(ctx->userctx, &s->req, s->cred,
+			mach_complete_async, (heim_sipc_call)s);
+    });
+
+    return KERN_SUCCESS;
+}
+
+static int
+mach_init(const char *service, mach_port_t sport, heim_sipc ctx)
+{
+    struct mach_service *s;
+    char *name;
+
+    init_globals();
+
+    s = calloc(1, sizeof(*s));
+    if (s == NULL)
+	return ENOMEM;
+
+    asprintf(&name, "heim-ipc-mach-%s", service);
+
+    s->queue = dispatch_queue_create(name, NULL);
+    free(name);
+    s->sport = sport;
+
+    s->source = dispatch_source_create(DISPATCH_SOURCE_TYPE_MACH_RECV,
+				       s->sport, 0, s->queue);
+    if (s->source == NULL) {
+	dispatch_release(s->queue);
+	free(s);
+	return ENOMEM;
+    }
+    ctx->mech = s;
+
+    dispatch_set_context(s->queue, ctx);
+    dispatch_set_context(s->source, s);
+
+    dispatch_source_set_event_handler(s->source, ^{
+	    dispatch_mig_server(s->source, sizeof(union __RequestUnion__mheim_do_mheim_ipc_subsystem), mheim_ipc_server);
+	});
+
+    dispatch_source_set_cancel_handler(s->source, ^{
+	    heim_sipc ctx = dispatch_get_context(dispatch_get_current_queue());
+	    struct mach_service *st = ctx->mech;
+	    mach_port_mod_refs(mach_task_self(), st->sport,
+			       MACH_PORT_RIGHT_RECEIVE, -1);
+	    dispatch_release(st->queue);
+	    dispatch_release(st->source);
+	    free(st);
+	    free(ctx);
+	});
+
+    dispatch_resume(s->source);
+
+    return 0;
+}
+
+static int
+mach_release(heim_sipc ctx)
+{
+    struct mach_service *s = ctx->mech;
+    dispatch_source_cancel(s->source);
+    dispatch_release(s->source);
+    return 0;
+}
+
+static mach_port_t
+mach_checkin_or_register(const char *service)
+{
+    mach_port_t mp;
+    kern_return_t kr;
+
+    kr = bootstrap_check_in(bootstrap_port, service, &mp);
+    if (kr == KERN_SUCCESS)
+	return mp;
+
+#if __MAC_OS_X_VERSION_MIN_REQUIRED <= 1050
+    /* Pre SnowLeopard version */
+    kr = mach_port_allocate(mach_task_self(), MACH_PORT_RIGHT_RECEIVE, &mp);
+    if (kr != KERN_SUCCESS)
+	return MACH_PORT_NULL;
+
+    kr = mach_port_insert_right(mach_task_self(), mp, mp,
+				MACH_MSG_TYPE_MAKE_SEND);
+    if (kr != KERN_SUCCESS) {
+	mach_port_destroy(mach_task_self(), mp);
+	return MACH_PORT_NULL;
+    }
+
+    kr = bootstrap_register(bootstrap_port, rk_UNCONST(service), mp);
+    if (kr != KERN_SUCCESS) {
+	mach_port_destroy(mach_task_self(), mp);
+	return MACH_PORT_NULL;
+    }
+
+    return mp;
+#else
+    return MACH_PORT_NULL;
+#endif
+}
+
+
+#endif /* __APPLE__ && HAVE_GCD */
+
+
+int
+heim_sipc_launchd_mach_init(const char *service,
+			    heim_ipc_callback callback,
+			    void *user, heim_sipc *ctx)
+{
+#if defined(__APPLE__) && defined(HAVE_GCD)
+    mach_port_t sport = MACH_PORT_NULL;
+    heim_sipc c = NULL;
+    int ret;
+
+    *ctx = NULL;
+
+    sport = mach_checkin_or_register(service);
+    if (sport == MACH_PORT_NULL) {
+	ret = ENOENT;
+	goto error;
+    }
+
+    c = calloc(1, sizeof(*c));
+    if (c == NULL) {
+	ret = ENOMEM;
+	goto error;
+    }
+    c->release = mach_release;
+    c->userctx = user;
+    c->callback = callback;
+
+    ret = mach_init(service, sport, c);
+    if (ret)
+	goto error;
+
+    *ctx = c;
+    return 0;
+ error:
+    if (c)
+	free(c);
+    if (sport != MACH_PORT_NULL)
+	mach_port_mod_refs(mach_task_self(), sport,
+			   MACH_PORT_RIGHT_RECEIVE, -1);
+    return ret;
+#else /* !(__APPLE__ && HAVE_GCD) */
+    *ctx = NULL;
+    return EINVAL;
+#endif /* __APPLE__ && HAVE_GCD */
+}
+
+struct client {
+    int fd;
+    heim_ipc_callback callback;
+    void *userctx;
+    int flags;
+#define LISTEN_SOCKET	1
+#define WAITING_READ	2
+#define WAITING_WRITE	4
+#define WAITING_CLOSE	8
+
+#define HTTP_REPLY	16
+
+#define INHERIT_MASK	0xffff0000
+#define INCLUDE_ERROR_CODE (1 << 16)
+#define ALLOW_HTTP	(1<<17)
+#define UNIX_SOCKET	(1<<18)
+    unsigned calls;
+    size_t ptr, len;
+    uint8_t *inmsg;
+    size_t olen;
+    uint8_t *outmsg;
+#ifdef HAVE_GCD
+    dispatch_source_t in;
+    dispatch_source_t out;
+#endif
+    struct {
+	uid_t uid;
+	gid_t gid;
+	pid_t pid;
+    } unixrights;
+};
+
+#ifndef HAVE_GCD
+static unsigned num_clients = 0;
+static struct client **clients = NULL;
+#endif
+
+static void handle_read(struct client *);
+static void handle_write(struct client *);
+static int maybe_close(struct client *);
+
+/*
+ * Update peer credentials from socket.
+ *
+ * SCM_CREDS can only be updated the first time there is read data to
+ * read from the filedescriptor, so if we read do it before this
+ * point, the cred data might not be is not there yet.
+ */
+
+static int
+update_client_creds(struct client *c)
+{
+#ifdef HAVE_GETPEERUCRED
+    /* Solaris 10 */
+    {
+	ucred_t *peercred;
+
+	if (getpeerucred(c->fd, &peercred) != 0) {
+	    c->unixrights.uid = ucred_geteuid(peercred);
+	    c->unixrights.gid = ucred_getegid(peercred);
+	    c->unixrights.pid = 0;
+	    ucred_free(peercred);
+	    return 1;
+	}
+    }
+#endif
+#ifdef HAVE_GETPEEREID
+    /* FreeBSD, OpenBSD */
+    {
+	uid_t uid;
+	gid_t gid;
+
+	if (getpeereid(c->fd, &uid, &gid) == 0) {
+	    c->unixrights.uid = uid;
+	    c->unixrights.gid = gid;
+	    c->unixrights.pid = 0;
+	    return 1;
+	}
+    }
+#endif
+#ifdef SO_PEERCRED
+    /* Linux */
+    {
+	struct ucred pc;
+	socklen_t pclen = sizeof(pc);
+
+	if (getsockopt(c->fd, SOL_SOCKET, SO_PEERCRED, (void *)&pc, &pclen) == 0) {
+	    c->unixrights.uid = pc.uid;
+	    c->unixrights.gid = pc.gid;
+	    c->unixrights.pid = pc.pid;
+	    return 1;
+	}
+    }
+#endif
+#if defined(LOCAL_PEERCRED) && defined(XUCRED_VERSION)
+    {
+	struct xucred peercred;
+	socklen_t peercredlen = sizeof(peercred);
+
+	if (getsockopt(c->fd, LOCAL_PEERCRED, 1,
+		       (void *)&peercred, &peercredlen) == 0
+	    && peercred.cr_version == XUCRED_VERSION)
+	{
+	    c->unixrights.uid = peercred.cr_uid;
+	    c->unixrights.gid = peercred.cr_gid;
+	    c->unixrights.pid = 0;
+	    return 1;
+	}
+    }
+#endif
+#if defined(SOCKCREDSIZE) && defined(SCM_CREDS)
+    /* NetBSD */
+    if (c->unixrights.uid == (uid_t)-1) {
+	struct msghdr msg;
+	socklen_t crmsgsize;
+	void *crmsg;
+	struct cmsghdr *cmp;
+	struct sockcred *sc;
+
+	memset(&msg, 0, sizeof(msg));
+	crmsgsize = CMSG_SPACE(SOCKCREDSIZE(NGROUPS));
+	if (crmsgsize == 0)
+	    return 1 ;
+
+	crmsg = malloc(crmsgsize);
+	if (crmsg == NULL)
+	    goto failed_scm_creds;
+
+	memset(crmsg, 0, crmsgsize);
+
+	msg.msg_control = crmsg;
+	msg.msg_controllen = crmsgsize;
+
+	if (recvmsg(c->fd, &msg, 0) < 0) {
+	    free(crmsg);
+	    goto failed_scm_creds;
+	}
+
+	if (msg.msg_controllen == 0 || (msg.msg_flags & MSG_CTRUNC) != 0) {
+	    free(crmsg);
+	    goto failed_scm_creds;
+	}
+
+	cmp = CMSG_FIRSTHDR(&msg);
+	if (cmp->cmsg_level != SOL_SOCKET || cmp->cmsg_type != SCM_CREDS) {
+	    free(crmsg);
+	    goto failed_scm_creds;
+	}
+
+	sc = (struct sockcred *)(void *)CMSG_DATA(cmp);
+
+	c->unixrights.uid = sc->sc_euid;
+	c->unixrights.gid = sc->sc_egid;
+	c->unixrights.pid = 0;
+
+	free(crmsg);
+	return 1;
+    } else {
+	/* we already got the cred, just return it */
+	return 1;
+    }
+ failed_scm_creds:
+#endif
+    return 0;
+}
+
+
+static struct client *
+add_new_socket(int fd,
+	       int flags,
+	       heim_ipc_callback callback,
+	       void *userctx)
+{
+    struct client *c;
+    int fileflags;
+
+    c = calloc(1, sizeof(*c));
+    if (c == NULL)
+	return NULL;
+
+    if (flags & LISTEN_SOCKET) {
+	c->fd = fd;
+    } else {
+	c->fd = accept(fd, NULL, NULL);
+	if(c->fd < 0) {
+	    free(c);
+	    return NULL;
+	}
+    }
+
+    c->flags = flags;
+    c->callback = callback;
+    c->userctx = userctx;
+
+    fileflags = fcntl(c->fd, F_GETFL, 0);
+    fcntl(c->fd, F_SETFL, fileflags | O_NONBLOCK);
+
+#ifdef HAVE_GCD
+    init_globals();
+
+    c->in = dispatch_source_create(DISPATCH_SOURCE_TYPE_READ,
+				   c->fd, 0, eventq);
+    c->out = dispatch_source_create(DISPATCH_SOURCE_TYPE_WRITE,
+				    c->fd, 0, eventq);
+
+    dispatch_source_set_event_handler(c->in, ^{
+	    int rw = (c->flags & WAITING_WRITE);
+	    handle_read(c);
+	    if (rw == 0 && (c->flags & WAITING_WRITE))
+		dispatch_resume(c->out);
+	    if ((c->flags & WAITING_READ) == 0)
+		dispatch_suspend(c->in);
+	    maybe_close(c);
+	});
+    dispatch_source_set_event_handler(c->out, ^{
+	    handle_write(c);
+	    if ((c->flags & WAITING_WRITE) == 0) {
+		dispatch_suspend(c->out);
+	    }
+	    maybe_close(c);
+	});
+
+    dispatch_resume(c->in);
+#else
+    clients = erealloc(clients, sizeof(clients[0]) * (num_clients + 1));
+    clients[num_clients] = c;
+    num_clients++;
+#endif
+
+    return c;
+}
+
+static int
+maybe_close(struct client *c)
+{
+    if (c->calls != 0)
+	return 0;
+    if (c->flags & (WAITING_READ|WAITING_WRITE))
+	return 0;
+
+#ifdef HAVE_GCD
+    dispatch_source_cancel(c->in);
+    if ((c->flags & WAITING_READ) == 0)
+	dispatch_resume(c->in);
+    dispatch_release(c->in);
+
+    dispatch_source_cancel(c->out);
+    if ((c->flags & WAITING_WRITE) == 0)
+	dispatch_resume(c->out);
+    dispatch_release(c->out);
+#endif
+    close(c->fd); /* ref count fd close */
+    free(c);
+    return 1;
+}
+
+
+struct socket_call {
+    heim_idata in;
+    struct client *c;
+    heim_icred cred;
+};
+
+static void
+output_data(struct client *c, const void *data, size_t len)
+{
+    if (c->olen + len < c->olen)
+	abort();
+    c->outmsg = erealloc(c->outmsg, c->olen + len);
+    memcpy(&c->outmsg[c->olen], data, len);
+    c->olen += len;
+    c->flags |= WAITING_WRITE;
+}
+
+static void
+socket_complete(heim_sipc_call ctx, int returnvalue, heim_idata *reply)
+{
+    struct socket_call *sc = (struct socket_call *)ctx;
+    struct client *c = sc->c;
+
+    /* double complete ? */
+    if (c == NULL)
+	abort();
+
+    if ((c->flags & WAITING_CLOSE) == 0) {
+	uint32_t u32;
+
+	/* length */
+	u32 = htonl(reply->length);
+	output_data(c, &u32, sizeof(u32));
+
+	/* return value */
+	if (c->flags & INCLUDE_ERROR_CODE) {
+	    u32 = htonl(returnvalue);
+	    output_data(c, &u32, sizeof(u32));
+	}
+
+	/* data */
+	output_data(c, reply->data, reply->length);
+
+	/* if HTTP, close connection */
+	if (c->flags & HTTP_REPLY) {
+	    c->flags |= WAITING_CLOSE;
+	    c->flags &= ~WAITING_READ;
+	}
+    }
+
+    c->calls--;
+    if (sc->cred)
+	heim_ipc_free_cred(sc->cred);
+    free(sc->in.data);
+    sc->c = NULL; /* so we can catch double complete */
+    free(sc);
+
+    maybe_close(c);
+}
+
+/* remove HTTP %-quoting from buf */
+static int
+de_http(char *buf)
+{
+    unsigned char *p, *q;
+    for(p = q = (unsigned char *)buf; *p; p++, q++) {
+	if(*p == '%' && isxdigit(p[1]) && isxdigit(p[2])) {
+	    unsigned int x;
+	    if(sscanf((char *)p + 1, "%2x", &x) != 1)
+		return -1;
+	    *q = x;
+	    p += 2;
+	} else
+	    *q = *p;
+    }
+    *q = '\0';
+    return 0;
+}
+
+static struct socket_call *
+handle_http_tcp(struct client *c)
+{
+    struct socket_call *cs;
+    char *s, *p, *t;
+    void *data;
+    char *proto;
+    int len;
+
+    s = (char *)c->inmsg;
+
+    p = strstr(s, "\r\n");
+    if (p == NULL)
+	return NULL;
+
+    *p = 0;
+
+    p = NULL;
+    t = strtok_r(s, " \t", &p);
+    if (t == NULL)
+	return NULL;
+
+    t = strtok_r(NULL, " \t", &p);
+    if (t == NULL)
+	return NULL;
+
+    data = malloc(strlen(t));
+    if (data == NULL)
+	return NULL;
+
+    if(*t == '/')
+	t++;
+    if(de_http(t) != 0) {
+	free(data);
+	return NULL;
+    }
+    proto = strtok_r(NULL, " \t", &p);
+    if (proto == NULL) {
+	free(data);
+	return NULL;
+    }
+    len = base64_decode(t, data);
+    if(len <= 0){
+	const char *msg =
+	    " 404 Not found\r\n"
+	    "Server: Heimdal/" VERSION "\r\n"
+	    "Cache-Control: no-cache\r\n"
+	    "Pragma: no-cache\r\n"
+	    "Content-type: text/html\r\n"
+	    "Content-transfer-encoding: 8bit\r\n\r\n"
+	    "<TITLE>404 Not found</TITLE>\r\n"
+	    "<H1>404 Not found</H1>\r\n"
+	    "That page doesn't exist, maybe you are looking for "
+	    "<A HREF=\"http://www.h5l.org/\">Heimdal</A>?\r\n";
+	free(data);
+	output_data(c, proto, strlen(proto));
+	output_data(c, msg, strlen(msg));
+	return NULL;
+    }
+
+    cs = emalloc(sizeof(*cs));
+    cs->c = c;
+    cs->in.data = data;
+    cs->in.length = len;
+    c->ptr = 0;
+
+    {
+	const char *msg =
+	    " 200 OK\r\n"
+	    "Server: Heimdal/" VERSION "\r\n"
+	    "Cache-Control: no-cache\r\n"
+	    "Pragma: no-cache\r\n"
+	    "Content-type: application/octet-stream\r\n"
+	    "Content-transfer-encoding: binary\r\n\r\n";
+	output_data(c, proto, strlen(proto));
+	output_data(c, msg, strlen(msg));
+    }
+
+    return cs;
+}
+
+
+static void
+handle_read(struct client *c)
+{
+    ssize_t len;
+    uint32_t dlen;
+
+    if (c->flags & LISTEN_SOCKET) {
+	add_new_socket(c->fd,
+		       WAITING_READ | (c->flags & INHERIT_MASK),
+		       c->callback,
+		       c->userctx);
+	return;
+    }
+
+    if (c->ptr - c->len < 1024) {
+	c->inmsg = erealloc(c->inmsg,
+			    c->len + 1024);
+	c->len += 1024;
+    }
+
+    len = read(c->fd, c->inmsg + c->ptr, c->len - c->ptr);
+    if (len <= 0) {
+	c->flags |= WAITING_CLOSE;
+	c->flags &= ~WAITING_READ;
+	return;
+    }
+    c->ptr += len;
+    if (c->ptr > c->len)
+	abort();
+
+    while (c->ptr >= sizeof(dlen)) {
+	struct socket_call *cs;
+
+	if((c->flags & ALLOW_HTTP) && c->ptr >= 4 &&
+	   strncmp((char *)c->inmsg, "GET ", 4) == 0 &&
+	   strncmp((char *)c->inmsg + c->ptr - 4, "\r\n\r\n", 4) == 0) {
+
+	    /* remove the trailing \r\n\r\n so the string is NUL terminated */
+	    c->inmsg[c->ptr - 4] = '\0';
+
+	    c->flags |= HTTP_REPLY;
+
+	    cs = handle_http_tcp(c);
+	    if (cs == NULL) {
+		c->flags |= WAITING_CLOSE;
+		c->flags &= ~WAITING_READ;
+		break;
+	    }
+	} else {
+	    memcpy(&dlen, c->inmsg, sizeof(dlen));
+	    dlen = ntohl(dlen);
+
+	    if (dlen > MAX_PACKET_SIZE) {
+		c->flags |= WAITING_CLOSE;
+		c->flags &= ~WAITING_READ;
+		return;
+	    }
+	    if (dlen > c->ptr - sizeof(dlen)) {
+		break;
+	    }
+
+	    cs = emalloc(sizeof(*cs));
+	    cs->c = c;
+	    cs->in.data = emalloc(dlen);
+	    memcpy(cs->in.data, c->inmsg + sizeof(dlen), dlen);
+	    cs->in.length = dlen;
+
+	    c->ptr -= sizeof(dlen) + dlen;
+	    memmove(c->inmsg,
+		    c->inmsg + sizeof(dlen) + dlen,
+		    c->ptr);
+	}
+
+	c->calls++;
+
+	if ((c->flags & UNIX_SOCKET) != 0) {
+	    if (update_client_creds(c))
+		_heim_ipc_create_cred(c->unixrights.uid, c->unixrights.gid,
+				      c->unixrights.pid, -1, &cs->cred);
+	}
+
+	c->callback(c->userctx, &cs->in,
+		    cs->cred, socket_complete,
+		    (heim_sipc_call)cs);
+    }
+}
+
+static void
+handle_write(struct client *c)
+{
+    ssize_t len;
+
+    len = write(c->fd, c->outmsg, c->olen);
+    if (len <= 0) {
+	c->flags |= WAITING_CLOSE;
+	c->flags &= ~(WAITING_WRITE);
+    } else if (c->olen != (size_t)len) {
+	memmove(&c->outmsg[0], &c->outmsg[len], c->olen - len);
+	c->olen -= len;
+    } else {
+	c->olen = 0;
+	free(c->outmsg);
+	c->outmsg = NULL;
+	c->flags &= ~(WAITING_WRITE);
+    }
+}
+
+
+#ifndef HAVE_GCD
+
+static void
+process_loop(void)
+{
+    struct pollfd *fds;
+    unsigned n;
+    unsigned num_fds;
+
+    while(num_clients > 0) {
+
+	fds = malloc(num_clients * sizeof(fds[0]));
+	if(fds == NULL)
+	    abort();
+
+	num_fds = num_clients;
+
+	for (n = 0 ; n < num_fds; n++) {
+	    fds[n].fd = clients[n]->fd;
+	    fds[n].events = 0;
+	    if (clients[n]->flags & WAITING_READ)
+		fds[n].events |= POLLIN;
+	    if (clients[n]->flags & WAITING_WRITE)
+		fds[n].events |= POLLOUT;
+
+	    fds[n].revents = 0;
+	}
+
+	poll(fds, num_fds, -1);
+
+	for (n = 0 ; n < num_fds; n++) {
+	    if (clients[n] == NULL)
+		continue;
+	    if (fds[n].revents & POLLERR) {
+		clients[n]->flags |= WAITING_CLOSE;
+		continue;
+	    }
+
+	    if (fds[n].revents & POLLIN)
+		handle_read(clients[n]);
+	    if (fds[n].revents & POLLOUT)
+		handle_write(clients[n]);
+	}
+
+	n = 0;
+	while (n < num_clients) {
+	    struct client *c = clients[n];
+	    if (maybe_close(c)) {
+		if (n < num_clients - 1)
+		    clients[n] = clients[num_clients - 1];
+		num_clients--;
+	    } else
+		n++;
+	}
+
+	free(fds);
+    }
+}
+
+#endif
+
+static int
+socket_release(heim_sipc ctx)
+{
+    struct client *c = ctx->mech;
+    c->flags |= WAITING_CLOSE;
+    return 0;
+}
+
+int
+heim_sipc_stream_listener(int fd, int type,
+			  heim_ipc_callback callback,
+			  void *user, heim_sipc *ctx)
+{
+    heim_sipc ct = calloc(1, sizeof(*ct));
+    struct client *c;
+
+    if ((type & HEIM_SIPC_TYPE_IPC) && (type & (HEIM_SIPC_TYPE_UINT32|HEIM_SIPC_TYPE_HTTP)))
+	return EINVAL;
+
+    switch (type) {
+    case HEIM_SIPC_TYPE_IPC:
+	c = add_new_socket(fd, LISTEN_SOCKET|WAITING_READ|INCLUDE_ERROR_CODE, callback, user);
+	break;
+    case HEIM_SIPC_TYPE_UINT32:
+	c = add_new_socket(fd, LISTEN_SOCKET|WAITING_READ, callback, user);
+	break;
+    case HEIM_SIPC_TYPE_HTTP:
+    case HEIM_SIPC_TYPE_UINT32|HEIM_SIPC_TYPE_HTTP:
+	c = add_new_socket(fd, LISTEN_SOCKET|WAITING_READ|ALLOW_HTTP, callback, user);
+	break;
+    default:
+	free(ct);
+	return EINVAL;
+    }
+
+    ct->mech = c;
+    ct->release = socket_release;
+
+    c->unixrights.uid = (uid_t) -1;
+    c->unixrights.gid = (gid_t) -1;
+    c->unixrights.pid = (pid_t) 0;
+
+    *ctx = ct;
+    return 0;
+}
+
+int
+heim_sipc_service_unix(const char *service,
+		       heim_ipc_callback callback,
+		       void *user, heim_sipc *ctx)
+{
+    struct sockaddr_un un;
+    int fd, ret;
+
+    un.sun_family = AF_UNIX;
+
+    snprintf(un.sun_path, sizeof(un.sun_path),
+	     "/var/run/.heim_%s-socket", service);
+    fd = socket(AF_UNIX, SOCK_STREAM, 0);
+    if (fd < 0)
+	return errno;
+
+    socket_set_reuseaddr(fd, 1);
+#ifdef LOCAL_CREDS
+    {
+	int one = 1;
+	setsockopt(fd, 0, LOCAL_CREDS, (void *)&one, sizeof(one));
+    }
+#endif
+
+    unlink(un.sun_path);
+
+    if (bind(fd, (struct sockaddr *)&un, sizeof(un)) < 0) {
+	close(fd);
+	return errno;
+    }
+
+    if (listen(fd, SOMAXCONN) < 0) {
+	close(fd);
+	return errno;
+    }
+
+    chmod(un.sun_path, 0666);
+
+    ret = heim_sipc_stream_listener(fd, HEIM_SIPC_TYPE_IPC,
+				    callback, user, ctx);
+    if (ret == 0) {
+	struct client *c = (*ctx)->mech;
+	c->flags |= UNIX_SOCKET;
+    }
+
+    return ret;
+}
+
+/**
+ * Set the idle timeout value
+
+ * The timeout event handler is triggered recurrently every idle
+ * period `t'. The default action is rather draconian and just calls
+ * exit(0), so you might want to change this to something more
+ * graceful using heim_sipc_set_timeout_handler().
+ */
+
+void
+heim_sipc_timeout(time_t t)
+{
+#ifdef HAVE_GCD
+    static dispatch_once_t timeoutonce;
+    init_globals();
+    dispatch_sync(timerq, ^{
+	    timeoutvalue = t;
+	    set_timer();
+	});
+    dispatch_once(&timeoutonce, ^{  dispatch_resume(timer); });
+#else
+    abort();
+#endif
+}
+
+/**
+ * Set the timeout event handler
+ *
+ * Replaces the default idle timeout action.
+ */
+
+void
+heim_sipc_set_timeout_handler(void (*func)(void))
+{
+#ifdef HAVE_GCD
+    init_globals();
+    dispatch_sync(timerq, ^{ timer_ev = func; });
+#else
+    abort();
+#endif
+}
+
+
+void
+heim_sipc_free_context(heim_sipc ctx)
+{
+    (ctx->release)(ctx);
+}
+
+void
+heim_ipc_main(void)
+{
+#ifdef HAVE_GCD
+    dispatch_main();
+#else
+    process_loop();
+#endif
+}
+
diff --git a/lib/ipc/tc.c b/lib/ipc/tc.c
new file mode 100644
index 000000000000..8b56d21aa472
--- /dev/null
+++ b/lib/ipc/tc.c
@@ -0,0 +1,127 @@
+/*
+ * Copyright (c) 2009 Kungliga Tekniska Högskolan
+ * (Royal Institute of Technology, Stockholm, Sweden).
+ * All rights reserved.
+ *
+ * Portions Copyright (c) 2009 Apple Inc. All rights reserved.
+ *
+ * Redistribution and use in source and binary forms, with or without
+ * modification, are permitted provided that the following conditions
+ * are met:
+ *
+ * 1. Redistributions of source code must retain the above copyright
+ *    notice, this list of conditions and the following disclaimer.
+ *
+ * 2. Redistributions in binary form must reproduce the above copyright
+ *    notice, this list of conditions and the following disclaimer in the
+ *    documentation and/or other materials provided with the distribution.
+ *
+ * 3. Neither the name of the Institute nor the names of its contributors
+ *    may be used to endorse or promote products derived from this software
+ *    without specific prior written permission.
+ *
+ * THIS SOFTWARE IS PROVIDED BY THE INSTITUTE AND CONTRIBUTORS ``AS IS'' AND
+ * ANY EXPRESS OR IMPLIED WARRANTIES, INCLUDING, BUT NOT LIMITED TO, THE
+ * IMPLIED WARRANTIES OF MERCHANTABILITY AND FITNESS FOR A PARTICULAR PURPOSE
+ * ARE DISCLAIMED.  IN NO EVENT SHALL THE INSTITUTE OR CONTRIBUTORS BE LIABLE
+ * FOR ANY DIRECT, INDIRECT, INCIDENTAL, SPECIAL, EXEMPLARY, OR CONSEQUENTIAL
+ * DAMAGES (INCLUDING, BUT NOT LIMITED TO, PROCUREMENT OF SUBSTITUTE GOODS
+ * OR SERVICES; LOSS OF USE, DATA, OR PROFITS; OR BUSINESS INTERRUPTION)
+ * HOWEVER CAUSED AND ON ANY THEORY OF LIABILITY, WHETHER IN CONTRACT, STRICT
+ * LIABILITY, OR TORT (INCLUDING NEGLIGENCE OR OTHERWISE) ARISING IN ANY WAY
+ * OUT OF THE USE OF THIS SOFTWARE, EVEN IF ADVISED OF THE POSSIBILITY OF
+ * SUCH DAMAGE.
+ */
+
+#include <stdio.h>
+#include <stdlib.h>
+#include <krb5-types.h>
+#include <asn1-common.h>
+#include <heim-ipc.h>
+#include <getarg.h>
+#include <err.h>
+#include <roken.h>
+
+static int help_flag;
+static int version_flag;
+
+static struct getargs args[] = {
+    {	"help",		'h',	arg_flag,   &help_flag },
+    {	"version",	'v',	arg_flag,   &version_flag }
+};
+
+static int num_args = sizeof(args) / sizeof(args[0]);
+
+static void
+usage(int ret)
+{
+    arg_printusage (args, num_args, NULL, "");
+    exit (ret);
+}
+
+static void
+reply(void *ctx, int errorcode, heim_idata *reply, heim_icred cred)
+{
+    printf("got reply\n");
+    heim_ipc_semaphore_signal((heim_isemaphore)ctx); /* tell caller we are done */
+}
+
+static void
+test_ipc(const char *service)
+{
+    heim_isemaphore s;
+    heim_idata req, rep;
+    heim_ipc ipc;
+    int ret;
+
+    ret = heim_ipc_init_context(service, &ipc);
+    if (ret)
+	errx(1, "heim_ipc_init_context: %d", ret);
+
+    req.length = 0;
+    req.data = NULL;
+
+    ret = heim_ipc_call(ipc, &req, &rep, NULL);
+    if (ret)
+	errx(1, "heim_ipc_call: %d", ret);
+
+    s = heim_ipc_semaphore_create(0);
+    if (s == NULL)
+	errx(1, "heim_ipc_semaphore_create");
+
+    ret = heim_ipc_async(ipc, &req, s, reply);
+    if (ret)
+	errx(1, "heim_ipc_async: %d", ret);
+
+    heim_ipc_semaphore_wait(s, HEIM_IPC_WAIT_FOREVER); /* wait for reply to complete the work */
+
+    heim_ipc_free_context(ipc);
+}
+
+
+int
+main(int argc, char **argv)
+{
+    int optidx = 0;
+
+    setprogname(argv[0]);
+
+    if (getarg(args, num_args, argc, argv, &optidx))
+	usage(1);
+
+    if (help_flag)
+	usage(0);
+
+    if (version_flag) {
+	print_version(NULL);
+	exit(0);
+    }
+
+#ifdef __APPLE__
+    test_ipc("MACH:org.h5l.test-ipc");
+#endif
+    test_ipc("ANY:org.h5l.test-ipc");
+    test_ipc("UNIX:org.h5l.test-ipc");
+
+    return 0;
+}
diff --git a/lib/ipc/ts-http.c b/lib/ipc/ts-http.c
new file mode 100644
index 000000000000..b493079d94a3
--- /dev/null
+++ b/lib/ipc/ts-http.c
@@ -0,0 +1,136 @@
+/*
+ * Copyright (c) 2009 Kungliga Tekniska Högskolan
+ * (Royal Institute of Technology, Stockholm, Sweden).
+ * All rights reserved.
+ *
+ * Portions Copyright (c) 2009 Apple Inc. All rights reserved.
+ *
+ * Redistribution and use in source and binary forms, with or without
+ * modification, are permitted provided that the following conditions
+ * are met:
+ *
+ * 1. Redistributions of source code must retain the above copyright
+ *    notice, this list of conditions and the following disclaimer.
+ *
+ * 2. Redistributions in binary form must reproduce the above copyright
+ *    notice, this list of conditions and the following disclaimer in the
+ *    documentation and/or other materials provided with the distribution.
+ *
+ * 3. Neither the name of the Institute nor the names of its contributors
+ *    may be used to endorse or promote products derived from this software
+ *    without specific prior written permission.
+ *
+ * THIS SOFTWARE IS PROVIDED BY THE INSTITUTE AND CONTRIBUTORS ``AS IS'' AND
+ * ANY EXPRESS OR IMPLIED WARRANTIES, INCLUDING, BUT NOT LIMITED TO, THE
+ * IMPLIED WARRANTIES OF MERCHANTABILITY AND FITNESS FOR A PARTICULAR PURPOSE
+ * ARE DISCLAIMED.  IN NO EVENT SHALL THE INSTITUTE OR CONTRIBUTORS BE LIABLE
+ * FOR ANY DIRECT, INDIRECT, INCIDENTAL, SPECIAL, EXEMPLARY, OR CONSEQUENTIAL
+ * DAMAGES (INCLUDING, BUT NOT LIMITED TO, PROCUREMENT OF SUBSTITUTE GOODS
+ * OR SERVICES; LOSS OF USE, DATA, OR PROFITS; OR BUSINESS INTERRUPTION)
+ * HOWEVER CAUSED AND ON ANY THEORY OF LIABILITY, WHETHER IN CONTRACT, STRICT
+ * LIABILITY, OR TORT (INCLUDING NEGLIGENCE OR OTHERWISE) ARISING IN ANY WAY
+ * OUT OF THE USE OF THIS SOFTWARE, EVEN IF ADVISED OF THE POSSIBILITY OF
+ * SUCH DAMAGE.
+ */
+
+#include <stdio.h>
+#include <stdlib.h>
+#include <krb5-types.h>
+#include <heim-ipc.h>
+#include <getarg.h>
+#include <roken.h>
+
+static int help_flag;
+static int version_flag;
+
+static struct getargs args[] = {
+    {	"help",		'h',	arg_flag,   &help_flag },
+    {	"version",	'v',	arg_flag,   &version_flag }
+};
+
+static int num_args = sizeof(args) / sizeof(args[0]);
+
+static void
+usage(int ret)
+{
+    arg_printusage (args, num_args, NULL, "");
+    exit (ret);
+}
+
+static void
+test_service(void *ctx, const heim_idata *req,
+	     const heim_icred cred,
+	     heim_ipc_complete complete,
+	     heim_sipc_call cctx)
+{
+    heim_idata rep;
+    printf("got request\n");
+    rep.length = 3;
+    rep.data = strdup("hej");
+    (*complete)(cctx, 0, &rep);
+}
+
+
+static void
+setup_sockets(void)
+{
+    struct addrinfo hints, *res, *res0;
+    int ret, s;
+    heim_sipc u;
+
+    memset(&hints, 0, sizeof(hints));
+    hints.ai_family = PF_UNSPEC;
+    hints.ai_socktype = SOCK_STREAM;
+    hints.ai_flags = AI_PASSIVE;
+    ret = getaddrinfo(NULL, "8080", &hints, &res0);
+    if (ret)
+	errx(1, "%s", gai_strerror(ret));
+
+    for (res = res0; res ; res = res->ai_next) {
+	s = socket(res->ai_family, res->ai_socktype, res->ai_protocol);
+	if (s < 0) {
+	    warn("socket");
+	    continue;
+	}
+	socket_set_reuseaddr(s, 1);
+	socket_set_ipv6only(s, 1);
+
+	if (bind(s, res->ai_addr, res->ai_addrlen) < 0) {
+	    warn("bind");
+	    close(s);
+	    continue;
+	}
+	listen(s, 5);
+	ret = heim_sipc_stream_listener(s, HEIM_SIPC_TYPE_HTTP,
+					test_service, NULL, &u);
+	if (ret)
+	    errx(1, "heim_sipc_stream_listener: %d", ret);
+    }
+    freeaddrinfo(res0);
+}
+
+
+int
+main(int argc, char **argv)
+{
+    int optidx = 0;
+
+    setprogname(argv[0]);
+
+    if (getarg(args, num_args, argc, argv, &optidx))
+	usage(1);
+
+    if (help_flag)
+	usage(0);
+
+    if (version_flag) {
+	print_version(NULL);
+	exit(0);
+    }
+
+    setup_sockets();
+
+    heim_ipc_main();
+
+    return 0;
+}
diff --git a/lib/ipc/ts.c b/lib/ipc/ts.c
new file mode 100644
index 000000000000..680d77bc913e
--- /dev/null
+++ b/lib/ipc/ts.c
@@ -0,0 +1,105 @@
+/*
+ * Copyright (c) 2009 Kungliga Tekniska Högskolan
+ * (Royal Institute of Technology, Stockholm, Sweden).
+ * All rights reserved.
+ *
+ * Portions Copyright (c) 2009 Apple Inc. All rights reserved.
+ *
+ * Redistribution and use in source and binary forms, with or without
+ * modification, are permitted provided that the following conditions
+ * are met:
+ *
+ * 1. Redistributions of source code must retain the above copyright
+ *    notice, this list of conditions and the following disclaimer.
+ *
+ * 2. Redistributions in binary form must reproduce the above copyright
+ *    notice, this list of conditions and the following disclaimer in the
+ *    documentation and/or other materials provided with the distribution.
+ *
+ * 3. Neither the name of the Institute nor the names of its contributors
+ *    may be used to endorse or promote products derived from this software
+ *    without specific prior written permission.
+ *
+ * THIS SOFTWARE IS PROVIDED BY THE INSTITUTE AND CONTRIBUTORS ``AS IS'' AND
+ * ANY EXPRESS OR IMPLIED WARRANTIES, INCLUDING, BUT NOT LIMITED TO, THE
+ * IMPLIED WARRANTIES OF MERCHANTABILITY AND FITNESS FOR A PARTICULAR PURPOSE
+ * ARE DISCLAIMED.  IN NO EVENT SHALL THE INSTITUTE OR CONTRIBUTORS BE LIABLE
+ * FOR ANY DIRECT, INDIRECT, INCIDENTAL, SPECIAL, EXEMPLARY, OR CONSEQUENTIAL
+ * DAMAGES (INCLUDING, BUT NOT LIMITED TO, PROCUREMENT OF SUBSTITUTE GOODS
+ * OR SERVICES; LOSS OF USE, DATA, OR PROFITS; OR BUSINESS INTERRUPTION)
+ * HOWEVER CAUSED AND ON ANY THEORY OF LIABILITY, WHETHER IN CONTRACT, STRICT
+ * LIABILITY, OR TORT (INCLUDING NEGLIGENCE OR OTHERWISE) ARISING IN ANY WAY
+ * OUT OF THE USE OF THIS SOFTWARE, EVEN IF ADVISED OF THE POSSIBILITY OF
+ * SUCH DAMAGE.
+ */
+
+#include <stdio.h>
+#include <stdlib.h>
+#include <krb5-types.h>
+#include <heim-ipc.h>
+#include <getarg.h>
+#include <roken.h>
+
+static int help_flag;
+static int version_flag;
+
+static struct getargs args[] = {
+    {	"help",		'h',	arg_flag,   &help_flag },
+    {	"version",	'v',	arg_flag,   &version_flag }
+};
+
+static int num_args = sizeof(args) / sizeof(args[0]);
+
+static void
+usage(int ret)
+{
+    arg_printusage (args, num_args, NULL, "");
+    exit (ret);
+}
+
+static void
+test_service(void *ctx, const heim_idata *req,
+	     const heim_icred cred,
+	     heim_ipc_complete complete,
+	     heim_sipc_call cctx)
+{
+    heim_idata rep;
+    printf("got request\n");
+    rep.length = 0;
+    rep.data = NULL;
+    (*complete)(cctx, 0, &rep);
+}
+
+
+int
+main(int argc, char **argv)
+{
+    heim_sipc u;
+    int optidx = 0;
+
+    setprogname(argv[0]);
+
+    if (getarg(args, num_args, argc, argv, &optidx))
+	usage(1);
+
+    if (help_flag)
+	usage(0);
+
+    if (version_flag) {
+	print_version(NULL);
+	exit(0);
+    }
+
+#if __APPLE__
+    {
+	heim_sipc mach;
+	heim_sipc_launchd_mach_init("org.h5l.test-ipc",
+				    test_service, NULL, &mach);
+    }
+#endif
+    heim_sipc_service_unix("org.h5l.test-ipc",
+			   test_service, NULL, &u);
+    heim_ipc_main();
+
+    return 0;
+}