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analyze: port to sd-bus

This commit is contained in:
Thomas Hindoe Paaboel Andersen 2013-10-25 22:56:19 +02:00
parent 77b421d050
commit 048ecf5b84
2 changed files with 281 additions and 378 deletions
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2
Makefile.am
View File

@ -1449,7 +1449,7 @@ systemd_analyze_CFLAGS = \
systemd_analyze_LDADD = \
libsystemd-shared.la \
libsystemd-dbus.la
libsystemd-bus.la
# ------------------------------------------------------------------------------
systemd_initctl_SOURCES = \

657
src/analyze/analyze.c
View File

@ -27,9 +27,11 @@
#include <sys/utsname.h>
#include <fnmatch.h>
#include "sd-bus.h"
#include "bus-util.h"
#include "bus-error.h"
#include "install.h"
#include "log.h"
#include "dbus-common.h"
#include "build.h"
#include "util.h"
#include "strxcpyx.h"
@ -85,6 +87,19 @@ struct boot_times {
usec_t unitsload_finish_time;
};
struct unit_info {
const char *id;
const char *description;
const char *load_state;
const char *active_state;
const char *sub_state;
const char *following;
const char *unit_path;
uint32_t job_id;
const char *job_type;
const char *job_path;
};
struct unit_times {
char *name;
usec_t ixt;
@ -102,40 +117,31 @@ static void pager_open_if_enabled(void) {
pager_open(false);
}
static int bus_get_uint64_property(DBusConnection *bus, const char *path, const char *interface, const char *property, uint64_t *val) {
_cleanup_dbus_message_unref_ DBusMessage *reply = NULL;
DBusMessageIter iter, sub;
static int bus_get_uint64_property(sd_bus *bus, const char *path, const char *interface, const char *property, uint64_t *val) {
_cleanup_bus_message_unref_ sd_bus_message *reply = NULL;
_cleanup_bus_error_free_ sd_bus_error error = SD_BUS_ERROR_NULL;
int r;
r = bus_method_call_with_reply(
bus,
"org.freedesktop.systemd1",
path,
"org.freedesktop.DBus.Properties",
"Get",
&reply,
NULL,
DBUS_TYPE_STRING, &interface,
DBUS_TYPE_STRING, &property,
DBUS_TYPE_INVALID);
if (r < 0)
r = sd_bus_get_property(bus,
"org.freedesktop.systemd1",
path,
interface,
property,
&error,
&reply,
"t");
if (r < 0) {
log_error("Failed to parse reply: %s", bus_error_message(&error, -r));
return r;
if (!dbus_message_iter_init(reply, &iter) ||
dbus_message_iter_get_arg_type(&iter) != DBUS_TYPE_VARIANT) {
log_error("Failed to parse reply.");
return -EIO;
}
dbus_message_iter_recurse(&iter, &sub);
if (dbus_message_iter_get_arg_type(&sub) != DBUS_TYPE_UINT64) {
r = sd_bus_message_read(reply, "t", val);
if (r < 0) {
log_error("Failed to parse reply.");
return -EIO;
return r;
}
dbus_message_iter_get_basic(&sub, val);
return 0;
}
@ -173,43 +179,59 @@ static void free_unit_times(struct unit_times *t, unsigned n) {
free(t);
}
static int acquire_time_data(DBusConnection *bus, struct unit_times **out) {
_cleanup_dbus_message_unref_ DBusMessage *reply = NULL;
DBusMessageIter iter, sub;
int r, c = 0, n_units = 0;
struct unit_times *unit_times = NULL;
static int bus_parse_unit_info(sd_bus_message *message, struct unit_info *u) {
int r = 0;
r = bus_method_call_with_reply(
bus,
"org.freedesktop.systemd1",
"/org/freedesktop/systemd1",
"org.freedesktop.systemd1.Manager",
"ListUnits",
&reply,
NULL,
DBUS_TYPE_INVALID);
if (r < 0)
goto fail;
assert(message);
assert(u);
if (!dbus_message_iter_init(reply, &iter) ||
dbus_message_iter_get_arg_type(&iter) != DBUS_TYPE_ARRAY ||
dbus_message_iter_get_element_type(&iter) != DBUS_TYPE_STRUCT) {
log_error("Failed to parse reply.");
r = -EIO;
goto fail;
r = sd_bus_message_read(message, "(ssssssouso)", &u->id,
&u->description,
&u->load_state,
&u->active_state,
&u->sub_state,
&u->following,
&u->unit_path,
&u->job_id,
&u->job_type,
&u->job_path);
if (r < 0) {
log_error("Failed to parse message as unit_info.");
return -EIO;
}
for (dbus_message_iter_recurse(&iter, &sub);
dbus_message_iter_get_arg_type(&sub) != DBUS_TYPE_INVALID;
dbus_message_iter_next(&sub)) {
struct unit_info u;
return r;
}
static int acquire_time_data(sd_bus *bus, struct unit_times **out) {
_cleanup_bus_message_unref_ sd_bus_message *reply = NULL;
_cleanup_bus_error_free_ sd_bus_error error = SD_BUS_ERROR_NULL;
int r, c = 0, n_units = 0;
struct unit_times *unit_times = NULL;
struct unit_info u;
r = sd_bus_call_method(bus,
"org.freedesktop.systemd1",
"/org/freedesktop/systemd1",
"org.freedesktop.systemd1.Manager",
"ListUnits",
&error,
&reply,
"");
if (r < 0) {
log_error("Failed to parse reply: %s", bus_error_message(&error, -r));
goto fail;
}
r = sd_bus_message_enter_container(reply, SD_BUS_TYPE_ARRAY, "(ssssssouso)");
if (r < 0)
goto fail;
while ((r = bus_parse_unit_info(reply, &u)) > 0) {
struct unit_times *t;
if (dbus_message_iter_get_arg_type(&sub) != DBUS_TYPE_STRUCT) {
log_error("Failed to parse reply.");
r = -EIO;
goto fail;
}
if (r < 0)
goto fail;
if (c >= n_units) {
struct unit_times *w;
@ -227,10 +249,6 @@ static int acquire_time_data(DBusConnection *bus, struct unit_times **out) {
t = unit_times+c;
t->name = NULL;
r = bus_parse_unit_info(&sub, &u);
if (r < 0)
goto fail;
assert_cc(sizeof(usec_t) == sizeof(uint64_t));
if (bus_get_uint64_property(bus, u.unit_path,
@ -279,7 +297,7 @@ fail:
return r;
}
static int acquire_boot_times(DBusConnection *bus, struct boot_times **bt) {
static int acquire_boot_times(sd_bus *bus, struct boot_times **bt) {
static struct boot_times times;
static bool cached = false;
@ -357,7 +375,7 @@ finish:
return 0;
}
static int pretty_boot_time(DBusConnection *bus, char **_buf) {
static int pretty_boot_time(sd_bus *bus, char **_buf) {
char ts[FORMAT_TIMESPAN_MAX];
struct boot_times *t;
static char buf[4096];
@ -419,7 +437,7 @@ static void svg_graph_box(double height, double begin, double end) {
}
}
static int analyze_plot(DBusConnection *bus) {
static int analyze_plot(sd_bus *bus) {
struct unit_times *times;
struct boot_times *boot;
struct utsname name;
@ -636,17 +654,13 @@ static int list_dependencies_print(const char *name, unsigned int level, unsigne
return 0;
}
static int list_dependencies_get_dependencies(DBusConnection *bus, const char *name, char ***deps) {
static const char dependencies[] =
"After\0";
static int list_dependencies_get_dependencies(sd_bus *bus, const char *name, char ***deps) {
_cleanup_free_ char *path;
const char *interface = "org.freedesktop.systemd1.Unit";
_cleanup_dbus_message_unref_ DBusMessage *reply = NULL;
DBusMessageIter iter, sub, sub2, sub3;
_cleanup_bus_message_unref_ sd_bus_message *reply = NULL;
_cleanup_bus_error_free_ sd_bus_error error = SD_BUS_ERROR_NULL;
int r = 0;
const char *s;
char **ret = NULL;
assert(bus);
@ -659,74 +673,29 @@ static int list_dependencies_get_dependencies(DBusConnection *bus, const char *n
goto finish;
}
r = bus_method_call_with_reply(
bus,
"org.freedesktop.systemd1",
path,
"org.freedesktop.DBus.Properties",
"GetAll",
&reply,
NULL,
DBUS_TYPE_STRING, &interface,
DBUS_TYPE_INVALID);
if (r < 0)
goto finish;
if (!dbus_message_iter_init(reply, &iter) ||
dbus_message_iter_get_arg_type(&iter) != DBUS_TYPE_ARRAY ||
dbus_message_iter_get_element_type(&iter) != DBUS_TYPE_DICT_ENTRY) {
log_error("Failed to parse reply.");
r = -EIO;
r = sd_bus_get_property(bus,
"org.freedesktop.systemd1",
path,
"org.freedesktop.systemd1.Unit",
"After",
&error,
&reply,
"as");
if (r < 0) {
log_error("Failed to parse reply: %s", bus_error_message(&error, -r));
goto finish;
}
dbus_message_iter_recurse(&iter, &sub);
r = sd_bus_message_enter_container(reply, SD_BUS_TYPE_ARRAY, "s");
if (r < 0)
goto finish;
while (dbus_message_iter_get_arg_type(&sub) != DBUS_TYPE_INVALID) {
const char *prop;
assert(dbus_message_iter_get_arg_type(&sub) == DBUS_TYPE_DICT_ENTRY);
dbus_message_iter_recurse(&sub, &sub2);
if (bus_iter_get_basic_and_next(&sub2, DBUS_TYPE_STRING, &prop, true) < 0) {
log_error("Failed to parse reply.");
r = -EIO;
while ((r = sd_bus_message_read(reply, "s", &s)) > 0) {
r = strv_extend(&ret, s);
if (r < 0) {
log_oom();
goto finish;
}
if (dbus_message_iter_get_arg_type(&sub2) != DBUS_TYPE_VARIANT) {
log_error("Failed to parse reply.");
r = -EIO;
goto finish;
}
dbus_message_iter_recurse(&sub2, &sub3);
dbus_message_iter_next(&sub);
if (!nulstr_contains(dependencies, prop))
continue;
if (dbus_message_iter_get_arg_type(&sub3) == DBUS_TYPE_ARRAY) {
if (dbus_message_iter_get_element_type(&sub3) == DBUS_TYPE_STRING) {
DBusMessageIter sub4;
dbus_message_iter_recurse(&sub3, &sub4);
while (dbus_message_iter_get_arg_type(&sub4) != DBUS_TYPE_INVALID) {
const char *s;
assert(dbus_message_iter_get_arg_type(&sub4) == DBUS_TYPE_STRING);
dbus_message_iter_get_basic(&sub4, &s);
r = strv_extend(&ret, s);
if (r < 0) {
log_oom();
goto finish;
}
dbus_message_iter_next(&sub4);
}
}
}
}
finish:
if (r < 0)
@ -753,7 +722,7 @@ static int list_dependencies_compare(const void *_a, const void *_b) {
return usb - usa;
}
static int list_dependencies_one(DBusConnection *bus, const char *name, unsigned int level, char ***units,
static int list_dependencies_one(sd_bus *bus, const char *name, unsigned int level, char ***units,
unsigned int branches) {
_cleanup_strv_free_ char **deps = NULL;
char **c;
@ -836,17 +805,14 @@ static int list_dependencies_one(DBusConnection *bus, const char *name, unsigned
return 0;
}
static int list_dependencies(DBusConnection *bus, const char *name) {
static int list_dependencies(sd_bus *bus, const char *name) {
_cleanup_strv_free_ char **units = NULL;
char ts[FORMAT_TIMESPAN_MAX];
struct unit_times *times;
int r;
const char
*path, *id,
*interface = "org.freedesktop.systemd1.Unit",
*property = "Id";
DBusMessageIter iter, sub;
_cleanup_dbus_message_unref_ DBusMessage *reply = NULL;
const char *path, *id;
_cleanup_bus_message_unref_ sd_bus_message *reply = NULL;
_cleanup_bus_error_free_ sd_bus_error error = SD_BUS_ERROR_NULL;
struct boot_times *boot;
assert(bus);
@ -855,35 +821,25 @@ static int list_dependencies(DBusConnection *bus, const char *name) {
if (path == NULL)
return -EINVAL;
r = bus_method_call_with_reply (
bus,
"org.freedesktop.systemd1",
path,
"org.freedesktop.DBus.Properties",
"Get",
&reply,
NULL,
DBUS_TYPE_STRING, &interface,
DBUS_TYPE_STRING, &property,
DBUS_TYPE_INVALID);
if (r < 0)
r = sd_bus_get_property(bus,
"org.freedesktop.systemd1",
path,
"org.freedesktop.systemd1.Unit",
"Id",
&error,
&reply,
"s");
if (r < 0) {
log_error("Failed to parse reply: %s", bus_error_message(&error, -r));
return r;
if (!dbus_message_iter_init(reply, &iter) ||
dbus_message_iter_get_arg_type(&iter) != DBUS_TYPE_VARIANT) {
log_error("Failed to parse reply.");
return -EIO;
}
dbus_message_iter_recurse(&iter, &sub);
if (dbus_message_iter_get_arg_type(&sub) != DBUS_TYPE_STRING) {
r = sd_bus_message_read(reply, "s", &id);
if (r < 0) {
log_error("Failed to parse reply.");
return -EIO;
return r;
}
dbus_message_iter_get_basic(&sub, &id);
times = hashmap_get(unit_times_hashmap, id);
r = acquire_boot_times(bus, &boot);
@ -903,7 +859,7 @@ static int list_dependencies(DBusConnection *bus, const char *name) {
return list_dependencies_one(bus, name, 0, &units, 0);
}
static int analyze_critical_chain(DBusConnection *bus, char *names[]) {
static int analyze_critical_chain(sd_bus *bus, char *names[]) {
struct unit_times *times;
int n, r;
unsigned int i;
@ -941,7 +897,7 @@ static int analyze_critical_chain(DBusConnection *bus, char *names[]) {
return 0;
}
static int analyze_blame(DBusConnection *bus) {
static int analyze_blame(sd_bus *bus) {
struct unit_times *times;
unsigned i;
int n;
@ -965,7 +921,7 @@ static int analyze_blame(DBusConnection *bus) {
return 0;
}
static int analyze_time(DBusConnection *bus) {
static int analyze_time(sd_bus *bus) {
_cleanup_free_ char *buf = NULL;
int r;
@ -977,145 +933,120 @@ static int analyze_time(DBusConnection *bus) {
return 0;
}
static int graph_one_property(const char *name, const char *prop, DBusMessageIter *iter, char* patterns[]) {
static int graph_one_property(sd_bus *bus, const struct unit_info *u, const char* prop, const char *color, char* patterns[]) {
_cleanup_bus_message_unref_ sd_bus_message *reply = NULL;
_cleanup_bus_error_free_ sd_bus_error error = SD_BUS_ERROR_NULL;
_cleanup_strv_free_ char **units = NULL;
const char *s;
char **unit;
int r;
static const char * const colors[] = {
"Requires", "[color=\"black\"]",
"RequiresOverridable", "[color=\"black\"]",
"Requisite", "[color=\"darkblue\"]",
"RequisiteOverridable", "[color=\"darkblue\"]",
"Wants", "[color=\"grey66\"]",
"Conflicts", "[color=\"red\"]",
"ConflictedBy", "[color=\"red\"]",
"After", "[color=\"green\"]"
};
const char *c = NULL;
unsigned i;
assert(name);
assert(u);
assert(prop);
assert(iter);
assert(color);
for (i = 0; i < ELEMENTSOF(colors); i += 2)
if (streq(colors[i], prop)) {
c = colors[i+1];
break;
r = sd_bus_get_property(bus,
"org.freedesktop.systemd1",
u->unit_path,
"org.freedesktop.systemd1.Unit",
prop,
&error,
&reply,
"as");
if (r < 0) {
log_error("Failed to parse reply: %s", bus_error_message(&error, -r));
return -r;
}
r = sd_bus_message_enter_container(reply, SD_BUS_TYPE_ARRAY, "s");
if (r < 0)
return -r;
while ((r = sd_bus_message_read(reply, "s", &s)) > 0) {
r = strv_extend(&units, s);
if (r < 0) {
log_oom();
return -r;
}
}
STRV_FOREACH(unit, units) {
char **p;
bool match_found;
if (!strv_isempty(arg_dot_from_patterns)) {
match_found = false;
STRV_FOREACH(p, arg_dot_from_patterns)
if (fnmatch(*p, u->id, 0) == 0) {
match_found = true;
break;
}
if (!match_found)
continue;
}
if (!c)
return 0;
if (!strv_isempty(arg_dot_to_patterns)) {
match_found = false;
if (arg_dot != DEP_ALL)
if ((arg_dot == DEP_ORDER) != streq(prop, "After"))
return 0;
STRV_FOREACH(p, arg_dot_to_patterns)
if (fnmatch(*p, *unit, 0) == 0) {
match_found = true;
break;
}
if (dbus_message_iter_get_arg_type(iter) == DBUS_TYPE_ARRAY &&
dbus_message_iter_get_element_type(iter) == DBUS_TYPE_STRING) {
DBusMessageIter sub;
dbus_message_iter_recurse(iter, &sub);
for (dbus_message_iter_recurse(iter, &sub);
dbus_message_iter_get_arg_type(&sub) != DBUS_TYPE_INVALID;
dbus_message_iter_next(&sub)) {
const char *s;
char **p;
bool match_found;
assert(dbus_message_iter_get_arg_type(&sub) == DBUS_TYPE_STRING);
dbus_message_iter_get_basic(&sub, &s);
if (!strv_isempty(arg_dot_from_patterns)) {
match_found = false;
STRV_FOREACH(p, arg_dot_from_patterns)
if (fnmatch(*p, name, 0) == 0) {
match_found = true;
break;
}
if (!match_found)
continue;
}
if (!strv_isempty(arg_dot_to_patterns)) {
match_found = false;
STRV_FOREACH(p, arg_dot_to_patterns)
if (fnmatch(*p, s, 0) == 0) {
match_found = true;
break;
}
if (!match_found)
continue;
}
if (!strv_isempty(patterns)) {
match_found = false;
STRV_FOREACH(p, patterns)
if (fnmatch(*p, name, 0) == 0 || fnmatch(*p, s, 0) == 0) {
match_found = true;
break;
}
if (!match_found)
continue;
}
printf("\t\"%s\"->\"%s\" %s;\n", name, s, c);
if (!match_found)
continue;
}
if (!strv_isempty(patterns)) {
match_found = false;
STRV_FOREACH(p, patterns)
if (fnmatch(*p, u->id, 0) == 0 || fnmatch(*p, *unit, 0) == 0) {
match_found = true;
break;
}
if (!match_found)
continue;
}
printf("\t\"%s\"->\"%s\" [color=\"%s\"];\n", u->id, *unit, color);
}
return 0;
}
static int graph_one(DBusConnection *bus, const struct unit_info *u, char *patterns[]) {
_cleanup_dbus_message_unref_ DBusMessage *reply = NULL;
const char *interface = "org.freedesktop.systemd1.Unit";
static int graph_one(sd_bus *bus, const struct unit_info *u, char *patterns[]) {
int r;
DBusMessageIter iter, sub, sub2, sub3;
assert(bus);
assert(u);
r = bus_method_call_with_reply(
bus,
"org.freedesktop.systemd1",
u->unit_path,
"org.freedesktop.DBus.Properties",
"GetAll",
&reply,
NULL,
DBUS_TYPE_STRING, &interface,
DBUS_TYPE_INVALID);
if (r < 0)
return r;
if (!dbus_message_iter_init(reply, &iter) ||
dbus_message_iter_get_arg_type(&iter) != DBUS_TYPE_ARRAY ||
dbus_message_iter_get_element_type(&iter) != DBUS_TYPE_DICT_ENTRY) {
log_error("Failed to parse reply.");
return -EIO;
if (arg_dot == DEP_ORDER ||arg_dot == DEP_ALL) {
r = graph_one_property(bus, u, "After", "green", patterns);
if (r < 0)
return r;
}
for (dbus_message_iter_recurse(&iter, &sub);
dbus_message_iter_get_arg_type(&sub) != DBUS_TYPE_INVALID;
dbus_message_iter_next(&sub)) {
const char *prop;
assert(dbus_message_iter_get_arg_type(&sub) == DBUS_TYPE_DICT_ENTRY);
dbus_message_iter_recurse(&sub, &sub2);
if (bus_iter_get_basic_and_next(&sub2, DBUS_TYPE_STRING, &prop, true) < 0 ||
dbus_message_iter_get_arg_type(&sub2) != DBUS_TYPE_VARIANT) {
log_error("Failed to parse reply.");
return -EIO;
}
dbus_message_iter_recurse(&sub2, &sub3);
r = graph_one_property(u->id, prop, &sub3, patterns);
if (arg_dot == DEP_REQUIRE ||arg_dot == DEP_ALL) {
r = graph_one_property(bus, u, "Requires", "black", patterns);
if (r < 0)
return r;
r = graph_one_property(bus, u, "RequiresOverridable", "black", patterns);
if (r < 0)
return r;
r = graph_one_property(bus, u, "RequisiteOverridable", "darkblue", patterns);
if (r < 0)
return r;
r = graph_one_property(bus, u, "Wants", "grey66", patterns);
if (r < 0)
return r;
r = graph_one_property(bus, u, "Conflicts", "red", patterns);
if (r < 0)
return r;
r = graph_one_property(bus, u, "ConflictedBy", "red", patterns);
if (r < 0)
return r;
}
@ -1123,41 +1054,32 @@ static int graph_one(DBusConnection *bus, const struct unit_info *u, char *patte
return 0;
}
static int dot(DBusConnection *bus, char* patterns[]) {
_cleanup_dbus_message_unref_ DBusMessage *reply = NULL;
DBusMessageIter iter, sub;
static int dot(sd_bus *bus, char* patterns[]) {
_cleanup_bus_message_unref_ sd_bus_message *reply = NULL;
_cleanup_bus_error_free_ sd_bus_error error = SD_BUS_ERROR_NULL;
int r;
struct unit_info u;
r = bus_method_call_with_reply(
bus,
"org.freedesktop.systemd1",
"/org/freedesktop/systemd1",
"org.freedesktop.systemd1.Manager",
"ListUnits",
&reply,
NULL,
DBUS_TYPE_INVALID);
if (r < 0)
return r;
if (!dbus_message_iter_init(reply, &iter) ||
dbus_message_iter_get_arg_type(&iter) != DBUS_TYPE_ARRAY ||
dbus_message_iter_get_element_type(&iter) != DBUS_TYPE_STRUCT) {
log_error("Failed to parse reply.");
return -EIO;
r = sd_bus_call_method(bus,
"org.freedesktop.systemd1",
"/org/freedesktop/systemd1",
"org.freedesktop.systemd1.Manager",
"ListUnits",
&error,
&reply,
"");
if (r < 0) {
log_error("Failed to parse reply: %s", bus_error_message(&error, -r));
return r;
}
r = sd_bus_message_enter_container(reply, SD_BUS_TYPE_ARRAY, "(ssssssouso)");
if (r < 0)
return r;
printf("digraph systemd {\n");
for (dbus_message_iter_recurse(&iter, &sub);
dbus_message_iter_get_arg_type(&sub) != DBUS_TYPE_INVALID;
dbus_message_iter_next(&sub)) {
struct unit_info u;
r = bus_parse_unit_info(&sub, &u);
if (r < 0)
return -EIO;
while ((r = bus_parse_unit_info(reply, &u)) > 0) {
r = graph_one(bus, &u, patterns);
if (r < 0)
return r;
@ -1177,14 +1099,11 @@ static int dot(DBusConnection *bus, char* patterns[]) {
return 0;
}
static int dump(DBusConnection *bus, char **args) {
_cleanup_free_ DBusMessage *reply = NULL;
DBusError error;
static int dump(sd_bus *bus, char **args) {
_cleanup_bus_message_unref_ sd_bus_message *reply = NULL;
_cleanup_bus_error_free_ sd_bus_error error = SD_BUS_ERROR_NULL;
const char *text = NULL;
int r;
const char *text;
dbus_error_init(&error);
if (!strv_isempty(args)) {
log_error("Too many arguments.");
@ -1193,36 +1112,32 @@ static int dump(DBusConnection *bus, char **args) {
pager_open_if_enabled();
r = bus_method_call_with_reply(
bus,
"org.freedesktop.systemd1",
"/org/freedesktop/systemd1",
"org.freedesktop.systemd1.Manager",
"Dump",
&reply,
NULL,
DBUS_TYPE_INVALID);
if (r < 0)
return r;
r = sd_bus_call_method(bus,
"org.freedesktop.systemd1",
"/org/freedesktop/systemd1",
"org.freedesktop.systemd1.Manager",
"Dump",
&error,
&reply,
"");
if (r < 0) {
log_error("Failed to parse reply: %s", bus_error_message(&error, -r));
return r;
}
if (!dbus_message_get_args(reply, &error,
DBUS_TYPE_STRING, &text,
DBUS_TYPE_INVALID)) {
log_error("Failed to parse reply: %s", bus_error_message(&error));
dbus_error_free(&error);
return -EIO;
r = sd_bus_message_read(reply, "s", &text);
if (r < 0) {
log_error("Failed to parse reply");
return r;
}
fputs(text, stdout);
return 0;
}
static int set_log_level(DBusConnection *bus, char **args) {
_cleanup_dbus_error_free_ DBusError error;
_cleanup_dbus_message_unref_ DBusMessage *m = NULL, *reply = NULL;
DBusMessageIter iter, sub;
const char* property = "LogLevel";
const char* interface = "org.freedesktop.systemd1.Manager";
static int set_log_level(sd_bus *bus, char **args) {
_cleanup_bus_error_free_ sd_bus_error error = SD_BUS_ERROR_NULL;
int r;
const char* value;
assert(bus);
@ -1234,31 +1149,17 @@ static int set_log_level(DBusConnection *bus, char **args) {
}
value = args[0];
dbus_error_init(&error);
m = dbus_message_new_method_call("org.freedesktop.systemd1",
"/org/freedesktop/systemd1",
"org.freedesktop.DBus.Properties",
"Set");
if (!m)
return log_oom();
dbus_message_iter_init_append(m, &iter);
if (!dbus_message_iter_append_basic(&iter, DBUS_TYPE_STRING, &interface) ||
!dbus_message_iter_append_basic(&iter, DBUS_TYPE_STRING, &property) ||
!dbus_message_iter_open_container(&iter, DBUS_TYPE_VARIANT, "s", &sub))
return log_oom();
if (!dbus_message_iter_append_basic(&sub, DBUS_TYPE_STRING, &value))
return log_oom();
if (!dbus_message_iter_close_container(&iter, &sub))
return log_oom();
reply = dbus_connection_send_with_reply_and_block(bus, m, -1, &error);
if (!reply) {
log_error("Failed to issue method call: %s", bus_error_message(&error));
r = sd_bus_set_property(bus,
"org.freedesktop.systemd1",
"/org/freedesktop/systemd1",
"org.freedesktop.systemd1.Manager",
"LogLevel",
&error,
"s",
value);
if (r < 0) {
log_error("Failed to issue method call: %s", bus_error_message(&error, -r));
return -EIO;
}
@ -1395,7 +1296,7 @@ static int parse_argv(int argc, char *argv[]) {
int main(int argc, char *argv[]) {
int r;
DBusConnection *bus = NULL;
_cleanup_bus_unref_ sd_bus *bus = NULL;
setlocale(LC_ALL, "");
setlocale(LC_NUMERIC, "C"); /* we want to format/parse floats in C style */
@ -1406,9 +1307,13 @@ int main(int argc, char *argv[]) {
if (r <= 0)
goto finish;
bus = dbus_bus_get(arg_scope == UNIT_FILE_SYSTEM ? DBUS_BUS_SYSTEM : DBUS_BUS_SESSION, NULL);
if (!bus) {
r = -EIO;
if (arg_scope == UNIT_FILE_SYSTEM)
r = sd_bus_open_system(&bus);
else
r = sd_bus_open_user(&bus);
if (r < 0) {
log_error("Failed to connect to bus: %s", strerror(-r));
goto finish;
}
@ -1429,8 +1334,6 @@ int main(int argc, char *argv[]) {
else
log_error("Unknown operation '%s'.", argv[optind]);
dbus_connection_unref(bus);
finish:
pager_close();