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authorKay Sievers <kay@vrfy.org>2015-06-17 16:37:55 +0200
committerKay Sievers <kay@vrfy.org>2015-06-17 18:01:49 +0200
commit1b09f548c7f303b486b5b1321c06336bff72ada4 (patch)
tree0fda8c2849b2226ba773dcdc7d7d15132dbac5f6
parenta54941f1b47507e1609f0d8eb224f5a5a5732c0e (diff)
turn kdbus support into a runtime option
./configure --enable/disable-kdbus can be used to set the default behavior regarding kdbus. If no kdbus kernel support is available, dbus-dameon will be used. With --enable-kdbus, the kernel command line option "kdbus=0" can be used to disable kdbus. With --disable-kdbus, the kernel command line option "kdbus=1" is required to enable kdbus support.
-rw-r--r--Makefile-man.am3
-rw-r--r--Makefile.am24
-rw-r--r--configure.ac6
-rw-r--r--man/systemd-bus-proxyd.xml2
-rw-r--r--man/systemd-bus-proxyd@.service.xml2
-rw-r--r--src/basic/def.h8
-rw-r--r--src/bus-proxyd/bus-proxyd.c4
-rw-r--r--src/bus-proxyd/stdio-bridge.c4
-rw-r--r--src/core/execute.c2
-rw-r--r--src/core/kmod-setup.c2
-rw-r--r--src/core/load-fragment-gperf.gperf.m44
-rw-r--r--src/core/manager.c2
-rw-r--r--src/core/mount-setup.c2
-rw-r--r--src/core/service.c4
-rw-r--r--src/libsystemd/sd-bus/sd-bus.c15
-rw-r--r--src/login/pam_systemd.c3
-rw-r--r--src/machine/machine-dbus.c4
-rw-r--r--src/shared/bus-util.c23
-rw-r--r--sysusers.d/systemd.conf.m42
-rw-r--r--units/systemd-networkd.service.m4.in2
-rw-r--r--units/systemd-resolved.service.m4.in2
21 files changed, 22 insertions, 98 deletions
diff --git a/Makefile-man.am b/Makefile-man.am
index 15781ba44a..9e2f4ba2e3 100644
--- a/Makefile-man.am
+++ b/Makefile-man.am
@@ -1052,7 +1052,6 @@ MANPAGES_ALIAS += \
endif
-if ENABLE_KDBUS
MANPAGES += \
man/sd_bus_creds_get_pid.3 \
man/sd_bus_creds_new_from_pid.3 \
@@ -1491,8 +1490,6 @@ man/sd_event_unref.html: man/sd_event_new.html
man/systemd-bus-proxyd.socket.html: man/systemd-bus-proxyd@.service.html
$(html-alias)
-endif
-
if ENABLE_LOCALED
MANPAGES += \
man/localectl.1 \
diff --git a/Makefile.am b/Makefile.am
index 6594cabdf6..7cc70445cc 100644
--- a/Makefile.am
+++ b/Makefile.am
@@ -338,10 +338,8 @@ INSTALL_EXEC_HOOKS += \
install-aliases-hook \
install-touch-usr-hook
-if ENABLE_KDBUS
INSTALL_EXEC_HOOKS += \
install-busnames-target-wants-hook
-endif
# ------------------------------------------------------------------------------
AM_V_M4 = $(AM_V_M4_$(V))
@@ -522,10 +520,8 @@ dist_systemunit_DATA = \
units/initrd-switch-root.target \
units/machines.target
-if ENABLE_KDBUS
dist_systemunit_DATA += \
$(dist_systemunit_DATA_busnames)
-endif
dist_systemunit_DATA_busnames += \
units/busnames.target
@@ -2622,7 +2618,6 @@ systemd_gpt_auto_generator_CFLAGS = \
endif
# ------------------------------------------------------------------------------
-if ENABLE_KDBUS
systemgenerator_PROGRAMS += \
systemd-dbus1-generator
@@ -2645,7 +2640,6 @@ dist_xinitrc_SCRIPTS = \
INSTALL_EXEC_HOOKS += dbus1-generator-install-hook
UNINSTALL_EXEC_HOOKS += dbus1-generator-uninstall-hook
-endif
# ------------------------------------------------------------------------------
systemd_sysv_generator_SOURCES = \
@@ -2793,7 +2787,6 @@ systemd_stdio_bridge_LDADD = \
libbus-proxy-core.la \
libshared.la
-if ENABLE_KDBUS
nodist_systemunit_DATA += \
units/systemd-bus-proxyd.service
@@ -2805,7 +2798,6 @@ nodist_userunit_DATA += \
dist_userunit_DATA += \
units/user/systemd-bus-proxyd.socket
-endif
EXTRA_DIST += \
units/systemd-bus-proxyd.service.m4.in \
@@ -2971,14 +2963,6 @@ pkginclude_HEADERS += \
src/systemd/sd-id128.h \
src/systemd/sd-daemon.h
-if ENABLE_KDBUS
-pkginclude_HEADERS += \
- src/systemd/sd-utf8.h \
- src/systemd/sd-netlink.h \
- src/systemd/sd-resolve.h \
- src/systemd/sd-path.h
-endif
-
lib_LTLIBRARIES += \
libsystemd.la
@@ -6174,10 +6158,8 @@ USER_UNIT_ALIASES += \
$(systemunitdir)/sound.target sound.target \
$(systemunitdir)/smartcard.target smartcard.target
-if ENABLE_KDBUS
USER_UNIT_ALIASES += \
$(systemunitdir)/busnames.target busnames.target
-endif
GENERAL_ALIASES += \
$(systemunitdir)/remote-fs.target $(pkgsysconfdir)/system/multi-user.target.wants/remote-fs.target \
@@ -6238,7 +6220,6 @@ DISTCHECK_CONFIGURE_FLAGS = \
--with-pamlibdir=$$dc_install_base/$(pamlibdir) \
--with-pamconfdir=$$dc_install_base/$(pamconfdir) \
--with-rootprefix=$$dc_install_base \
- --enable-kdbus \
--enable-compat-libs
if HAVE_SYSV_COMPAT
@@ -6299,11 +6280,6 @@ hwdb-update:
http://standards.ieee.org/develop/regauth/iab/iab.txt && \
./ids-update.pl )
-.PHONY: kdbus-update
-kdbus-update:
- ( cd $(top_srcdir)/src/libsystemd/sd-bus/ && \
- wget -N https://d-bus.googlecode.com/git/kdbus.h )
-
.PHONY: git-tag
git-tag:
git tag -s "v$(VERSION)" -m "systemd $(VERSION)"
diff --git a/configure.ac b/configure.ac
index b94dbd1613..e5d3994439 100644
--- a/configure.ac
+++ b/configure.ac
@@ -1203,9 +1203,9 @@ AM_CONDITIONAL(ENABLE_TERMINAL, [test "x$have_terminal" = "xyes" -a "x$have_unif
# ------------------------------------------------------------------------------
have_kdbus=no
-AC_ARG_ENABLE(kdbus, AS_HELP_STRING([--enable-kdbus], [do connect to kdbus by default]))
-if test "x$enable_kdbus" = "xyes"; then
- AC_DEFINE(ENABLE_KDBUS, 1, [Define if kdbus support is to be enabled])
+AC_ARG_ENABLE(kdbus, AS_HELP_STRING([--disable-kdbus], [do not connect to kdbus by default]))
+if test "x$enable_kdbus" != "xno"; then
+ AC_DEFINE(ENABLE_KDBUS, 1, [Define if kdbus is to be connected to by default])
have_kdbus=yes
M4_DEFINES="$M4_DEFINES -DENABLE_KDBUS"
fi
diff --git a/man/systemd-bus-proxyd.xml b/man/systemd-bus-proxyd.xml
index bbcf3d0981..f7b94cd481 100644
--- a/man/systemd-bus-proxyd.xml
+++ b/man/systemd-bus-proxyd.xml
@@ -24,7 +24,7 @@
along with systemd; If not, see <http://www.gnu.org/licenses/>.
-->
-<refentry id="systemd-bus-proxyd" conditional="ENABLE_KDBUS"
+<refentry id="systemd-bus-proxyd"
xmlns:xi="http://www.w3.org/2001/XInclude">
<refentryinfo>
diff --git a/man/systemd-bus-proxyd@.service.xml b/man/systemd-bus-proxyd@.service.xml
index 9dabc4dd5f..4ac6ba040c 100644
--- a/man/systemd-bus-proxyd@.service.xml
+++ b/man/systemd-bus-proxyd@.service.xml
@@ -24,7 +24,7 @@
along with systemd; If not, see <http://www.gnu.org/licenses/>.
-->
-<refentry id="systemd-bus-proxyd@.service" conditional='ENABLE_KDBUS'>
+<refentry id="systemd-bus-proxyd@.service">
<refentryinfo>
<title>systemd-bus-proxyd@.service</title>
diff --git a/src/basic/def.h b/src/basic/def.h
index 011c7c667e..5aaba1fe87 100644
--- a/src/basic/def.h
+++ b/src/basic/def.h
@@ -63,13 +63,7 @@
#define UNIX_SYSTEM_BUS_ADDRESS "unix:path=/var/run/dbus/system_bus_socket"
#define KERNEL_SYSTEM_BUS_ADDRESS "kernel:path=/sys/fs/kdbus/0-system/bus"
-
-#ifdef ENABLE_KDBUS
-# define DEFAULT_SYSTEM_BUS_ADDRESS KERNEL_SYSTEM_BUS_ADDRESS ";" UNIX_SYSTEM_BUS_ADDRESS
-#else
-# define DEFAULT_SYSTEM_BUS_ADDRESS UNIX_SYSTEM_BUS_ADDRESS
-#endif
-
+#define DEFAULT_SYSTEM_BUS_ADDRESS KERNEL_SYSTEM_BUS_ADDRESS ";" UNIX_SYSTEM_BUS_ADDRESS
#define UNIX_USER_BUS_ADDRESS_FMT "unix:path=%s/bus"
#define KERNEL_USER_BUS_ADDRESS_FMT "kernel:path=/sys/fs/kdbus/"UID_FMT"-user/bus"
diff --git a/src/bus-proxyd/bus-proxyd.c b/src/bus-proxyd/bus-proxyd.c
index 3e398b53e9..3cc3b33ae7 100644
--- a/src/bus-proxyd/bus-proxyd.c
+++ b/src/bus-proxyd/bus-proxyd.c
@@ -239,11 +239,7 @@ static int parse_argv(int argc, char *argv[]) {
if (!e)
return log_oom();
-#ifdef ENABLE_KDBUS
a = strjoin("x-machine-kernel:machine=", e, ";x-machine-unix:machine=", e, NULL);
-#else
- a = strjoin("x-machine-unix:machine=", e, NULL);
-#endif
if (!a)
return log_oom();
diff --git a/src/bus-proxyd/stdio-bridge.c b/src/bus-proxyd/stdio-bridge.c
index 61bc08ae33..f275f6705f 100644
--- a/src/bus-proxyd/stdio-bridge.c
+++ b/src/bus-proxyd/stdio-bridge.c
@@ -110,11 +110,7 @@ static int parse_argv(int argc, char *argv[]) {
if (!e)
return log_oom();
-#ifdef ENABLE_KDBUS
a = strjoin("x-machine-kernel:machine=", e, ";x-machine-unix:machine=", e, NULL);
-#else
- a = strjoin("x-machine-unix:machine=", e, NULL);
-#endif
if (!a)
return log_oom();
diff --git a/src/core/execute.c b/src/core/execute.c
index a6ff5ac56e..94cc101738 100644
--- a/src/core/execute.c
+++ b/src/core/execute.c
@@ -1514,7 +1514,6 @@ static int exec_child(
}
}
-#ifdef ENABLE_KDBUS
if (params->bus_endpoint_fd >= 0 && context->bus_endpoint) {
uid_t ep_uid = (uid == UID_INVALID) ? 0 : uid;
@@ -1524,7 +1523,6 @@ static int exec_child(
return r;
}
}
-#endif
/* If delegation is enabled we'll pass ownership of the cgroup
* (but only in systemd's own controller hierarchy!) to the
diff --git a/src/core/kmod-setup.c b/src/core/kmod-setup.c
index f5584b6b14..e7a6bdc8c4 100644
--- a/src/core/kmod-setup.c
+++ b/src/core/kmod-setup.c
@@ -66,10 +66,8 @@ int kmod_setup(void) {
/* this should never be a module */
{ "unix", "/proc/net/unix", true, true, NULL },
-#ifdef ENABLE_KDBUS
/* IPC is needed before we bring up any other services */
{ "kdbus", "/sys/fs/kdbus", false, false, is_kdbus_wanted },
-#endif
#ifdef HAVE_LIBIPTC
/* netfilter is needed by networkd, nspawn among others, and cannot be autoloaded */
diff --git a/src/core/load-fragment-gperf.gperf.m4 b/src/core/load-fragment-gperf.gperf.m4
index 66c9145aa6..aae81c80cb 100644
--- a/src/core/load-fragment-gperf.gperf.m4
+++ b/src/core/load-fragment-gperf.gperf.m4
@@ -229,9 +229,7 @@ Service.BusName, config_parse_bus_name, 0,
Service.FileDescriptorStoreMax, config_parse_unsigned, 0, offsetof(Service, n_fd_store_max)
Service.NotifyAccess, config_parse_notify_access, 0, offsetof(Service, notify_access)
Service.Sockets, config_parse_service_sockets, 0, 0
-m4_ifdef(`ENABLE_KDBUS',
-`Service.BusPolicy, config_parse_bus_endpoint_policy, 0, offsetof(Service, exec_context)',
-`Service.BusPolicy, config_parse_warn_compat, DISABLED_EXPERIMENTAL, 0')
+Service.BusPolicy, config_parse_bus_endpoint_policy, 0, offsetof(Service, exec_context)
EXEC_CONTEXT_CONFIG_ITEMS(Service)m4_dnl
CGROUP_CONTEXT_CONFIG_ITEMS(Service)m4_dnl
KILL_CONTEXT_CONFIG_ITEMS(Service)m4_dnl
diff --git a/src/core/manager.c b/src/core/manager.c
index eb80dd1b46..a1f37bbbb3 100644
--- a/src/core/manager.c
+++ b/src/core/manager.c
@@ -731,7 +731,6 @@ static int manager_setup_notify(Manager *m) {
}
static int manager_setup_kdbus(Manager *m) {
-#ifdef ENABLE_KDBUS
_cleanup_free_ char *p = NULL;
assert(m);
@@ -749,7 +748,6 @@ static int manager_setup_kdbus(Manager *m) {
return log_debug_errno(m->kdbus_fd, "Failed to set up kdbus: %m");
log_debug("Successfully set up kdbus on %s", p);
-#endif
return 0;
}
diff --git a/src/core/mount-setup.c b/src/core/mount-setup.c
index c35248eeae..42a6b952b9 100644
--- a/src/core/mount-setup.c
+++ b/src/core/mount-setup.c
@@ -104,10 +104,8 @@ static const MountPoint mount_table[] = {
{ "efivarfs", "/sys/firmware/efi/efivars", "efivarfs", NULL, MS_NOSUID|MS_NOEXEC|MS_NODEV,
is_efi_boot, MNT_NONE },
#endif
-#ifdef ENABLE_KDBUS
{ "kdbusfs", "/sys/fs/kdbus", "kdbusfs", NULL, MS_NOSUID|MS_NOEXEC|MS_NODEV,
NULL, MNT_IN_CONTAINER },
-#endif
};
/* These are API file systems that might be mounted by other software,
diff --git a/src/core/service.c b/src/core/service.c
index 71252e29e2..fa1e80b710 100644
--- a/src/core/service.c
+++ b/src/core/service.c
@@ -568,14 +568,12 @@ static int service_add_extras(Service *s) {
s->notify_access = NOTIFY_MAIN;
if (s->bus_name) {
-#ifdef ENABLE_KDBUS
const char *n;
n = strjoina(s->bus_name, ".busname");
r = unit_add_dependency_by_name(UNIT(s), UNIT_AFTER, n, NULL, true);
if (r < 0)
return r;
-#endif
r = unit_watch_bus_name(UNIT(s), s->bus_name);
if (r < 0)
@@ -1180,7 +1178,6 @@ static int service_spawn(
} else
path = UNIT(s)->cgroup_path;
-#ifdef ENABLE_KDBUS
if (s->exec_context.bus_endpoint) {
r = bus_kernel_create_endpoint(UNIT(s)->manager->running_as == MANAGER_SYSTEM ? "system" : "user",
UNIT(s)->id, &bus_endpoint_path);
@@ -1192,7 +1189,6 @@ static int service_spawn(
* as the service is running. */
exec_params.bus_endpoint_fd = s->bus_endpoint_fd = r;
}
-#endif
exec_params.argv = argv;
exec_params.fds = fds;
diff --git a/src/libsystemd/sd-bus/sd-bus.c b/src/libsystemd/sd-bus/sd-bus.c
index 0881b4779a..b559ee9eb8 100644
--- a/src/libsystemd/sd-bus/sd-bus.c
+++ b/src/libsystemd/sd-bus/sd-bus.c
@@ -1239,18 +1239,9 @@ int bus_set_address_user(sd_bus *b) {
if (!ee)
return -ENOMEM;
-#ifdef ENABLE_KDBUS
(void) asprintf(&b->address, KERNEL_USER_BUS_ADDRESS_FMT ";" UNIX_USER_BUS_ADDRESS_FMT, getuid(), ee);
-#else
- (void) asprintf(&b->address, UNIX_USER_BUS_ADDRESS_FMT, ee);
-#endif
- } else {
-#ifdef ENABLE_KDBUS
+ } else
(void) asprintf(&b->address, KERNEL_USER_BUS_ADDRESS_FMT, getuid());
-#else
- return -ECONNREFUSED;
-#endif
- }
if (!b->address)
return -ENOMEM;
@@ -1372,11 +1363,7 @@ int bus_set_address_system_machine(sd_bus *b, const char *machine) {
if (!e)
return -ENOMEM;
-#ifdef ENABLE_KDBUS
b->address = strjoin("x-machine-kernel:machine=", e, ";x-machine-unix:machine=", e, NULL);
-#else
- b->address = strjoin("x-machine-unix:machine=", e, NULL);
-#endif
if (!b->address)
return -ENOMEM;
diff --git a/src/login/pam_systemd.c b/src/login/pam_systemd.c
index b5d419000c..0ebdfdf19e 100644
--- a/src/login/pam_systemd.c
+++ b/src/login/pam_systemd.c
@@ -177,7 +177,6 @@ static int export_legacy_dbus_address(
uid_t uid,
const char *runtime) {
-#ifdef ENABLE_KDBUS
_cleanup_free_ char *s = NULL;
int r;
@@ -195,7 +194,7 @@ static int export_legacy_dbus_address(
pam_syslog(handle, LOG_ERR, "Failed to set bus variable.");
return r;
}
-#endif
+
return PAM_SUCCESS;
}
diff --git a/src/machine/machine-dbus.c b/src/machine/machine-dbus.c
index 9f026beb13..7813a0bcc7 100644
--- a/src/machine/machine-dbus.c
+++ b/src/machine/machine-dbus.c
@@ -509,11 +509,7 @@ int bus_machine_method_open_login(sd_bus_message *message, void *userdata, sd_bu
if (r < 0)
return r;
-#ifdef ENABLE_KDBUS
# define ADDRESS_FMT "x-machine-kernel:pid=%1$" PID_PRI ";x-machine-unix:pid=%1$" PID_PRI
-#else
-# define ADDRESS_FMT "x-machine-unix:pid=%1$" PID_PRI
-#endif
if (asprintf(&address, ADDRESS_FMT, m->leader) < 0)
return log_oom();
diff --git a/src/shared/bus-util.c b/src/shared/bus-util.c
index 8fcc289957..11350dad71 100644
--- a/src/shared/bus-util.c
+++ b/src/shared/bus-util.c
@@ -545,7 +545,6 @@ int bus_open_system_systemd(sd_bus **_bus) {
* directly to the system instance, instead of going via the
* bus */
-#ifdef ENABLE_KDBUS
r = sd_bus_new(&bus);
if (r < 0)
return r;
@@ -564,7 +563,6 @@ int bus_open_system_systemd(sd_bus **_bus) {
}
bus = sd_bus_unref(bus);
-#endif
r = sd_bus_new(&bus);
if (r < 0)
@@ -598,7 +596,6 @@ int bus_open_user_systemd(sd_bus **_bus) {
assert(_bus);
-#ifdef ENABLE_KDBUS
r = sd_bus_new(&bus);
if (r < 0)
return r;
@@ -616,7 +613,6 @@ int bus_open_user_systemd(sd_bus **_bus) {
}
bus = sd_bus_unref(bus);
-#endif
e = secure_getenv("XDG_RUNTIME_DIR");
if (!e)
@@ -2034,15 +2030,22 @@ int bus_path_decode_unique(const char *path, const char *prefix, char **ret_send
bool is_kdbus_wanted(void) {
_cleanup_free_ char *value = NULL;
+#ifdef ENABLE_KDBUS
+ const bool configured = true;
+#else
+ const bool configured = false;
+#endif
+
int r;
- if (get_proc_cmdline_key("kdbus", NULL) <= 0) {
- r = get_proc_cmdline_key("kdbus=", &value);
- if (r <= 0 || parse_boolean(value) != 1)
- return false;
- }
+ if (get_proc_cmdline_key("kdbus", NULL) > 0)
+ return true;
+
+ r = get_proc_cmdline_key("kdbus=", &value);
+ if (r <= 0)
+ return configured;
- return true;
+ return parse_boolean(value) == 1;
}
bool is_kdbus_available(void) {
diff --git a/sysusers.d/systemd.conf.m4 b/sysusers.d/systemd.conf.m4
index 23175de1f5..81b1d79c37 100644
--- a/sysusers.d/systemd.conf.m4
+++ b/sysusers.d/systemd.conf.m4
@@ -6,9 +6,7 @@
# (at your option) any later version.
g systemd-journal - -
-m4_ifdef(`ENABLE_KDBUS',
u systemd-bus-proxy - "systemd Bus Proxy"
-)m4_dnl
m4_ifdef(`ENABLE_NETWORKD',
u systemd-network - "systemd Network Management"
)m4_dnl
diff --git a/units/systemd-networkd.service.m4.in b/units/systemd-networkd.service.m4.in
index 7f216f331c..64d9130c24 100644
--- a/units/systemd-networkd.service.m4.in
+++ b/units/systemd-networkd.service.m4.in
@@ -17,13 +17,11 @@ Before=network.target multi-user.target shutdown.target
Conflicts=shutdown.target
Wants=network.target
-m4_ifdef(`ENABLE_KDBUS',
# On kdbus systems we pull in the busname explicitly, because it
# carries policy that allows the daemon to acquire its name.
Wants=org.freedesktop.network1.busname
After=org.freedesktop.network1.busname
-)m4_dnl
[Service]
Type=notify
Restart=on-failure
diff --git a/units/systemd-resolved.service.m4.in b/units/systemd-resolved.service.m4.in
index 98ae564af6..dce5402458 100644
--- a/units/systemd-resolved.service.m4.in
+++ b/units/systemd-resolved.service.m4.in
@@ -10,13 +10,11 @@ Description=Network Name Resolution
Documentation=man:systemd-resolved.service(8)
After=systemd-networkd.service network.target
-m4_ifdef(`ENABLE_KDBUS',
# On kdbus systems we pull in the busname explicitly, because it
# carries policy that allows the daemon to acquire its name.
Wants=org.freedesktop.resolve1.busname
After=org.freedesktop.resolve1.busname
-)m4_dnl
[Service]
Type=notify
Restart=always