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authorLennart Poettering <lennart@poettering.net>2013-03-31 18:15:59 +0200
committerLennart Poettering <lennart@poettering.net>2013-03-31 18:16:02 +0200
commita7edaadd78271e1c35ff9032f068cb08de645437 (patch)
tree24e18127aab17c7c2b05dca7b0845f03e6ad7acf /src/journal/journal-gatewayd.c
parent98178d3947d951ca001eaf400b5f362f458dceb5 (diff)
journal-gatewayd: query PID 1 for virtalization
Since journal-gatewayd is now running unprivileged, and detecting virtalization requires privileges, query PID1 via D-Bus for the used virtualization. This is also the first time we use libsystemd-bus for more than just testing. https://bugs.freedesktop.org/show_bug.cgi?id=62173
Diffstat (limited to 'src/journal/journal-gatewayd.c')
-rw-r--r--src/journal/journal-gatewayd.c56
1 files changed, 52 insertions, 4 deletions
diff --git a/src/journal/journal-gatewayd.c b/src/journal/journal-gatewayd.c
index 8161b7e56b..133d0ae478 100644
--- a/src/journal/journal-gatewayd.c
+++ b/src/journal/journal-gatewayd.c
@@ -31,9 +31,11 @@
#include "util.h"
#include "sd-journal.h"
#include "sd-daemon.h"
+#include "sd-bus.h"
+#include "bus-message.h"
+#include "bus-internal.h"
#include "logs-show.h"
#include "microhttpd-util.h"
-#include "virt.h"
#include "build.h"
#include "fileio.h"
@@ -740,6 +742,52 @@ static int request_handler_file(
return ret;
}
+static int get_virtualization(char **v) {
+ _cleanup_bus_message_unref_ sd_bus_message *m = NULL, *reply = NULL;
+ _cleanup_bus_unref_ sd_bus *bus = NULL;
+ const char *t;
+ char *b;
+ int r;
+
+ r = sd_bus_open_system(&bus);
+ if (r < 0)
+ return r;
+
+ r = sd_bus_message_new_method_call(
+ bus,
+ "org.freedesktop.systemd1",
+ "/org/freedesktop/systemd1",
+ "org.freedesktop.DBus.Properties",
+ "Get",
+ &m);
+ if (r < 0)
+ return r;
+
+ r = sd_bus_message_append(m, "ss", "org.freedesktop.systemd1.Manager", "Virtualization");
+ if (r < 0)
+ return r;
+
+ r = sd_bus_send_with_reply_and_block(bus, m, 0, NULL, &reply);
+ if (r < 0)
+ return r;
+
+ r = sd_bus_message_read(reply, "v", "s", &t);
+ if (r < 0)
+ return r;
+
+ if (isempty(t)) {
+ *v = NULL;
+ return 0;
+ }
+
+ b = strdup(t);
+ if (!b)
+ return -ENOMEM;
+
+ *v = b;
+ return 1;
+}
+
static int request_handler_machine(
struct MHD_Connection *connection,
void *connection_cls) {
@@ -751,7 +799,7 @@ static int request_handler_machine(
uint64_t cutoff_from, cutoff_to, usage;
char *json;
sd_id128_t mid, bid;
- const char *v = "bare";
+ _cleanup_free_ char *v = NULL;
assert(connection);
assert(m);
@@ -782,7 +830,7 @@ static int request_handler_machine(
parse_env_file("/etc/os-release", NEWLINE, "PRETTY_NAME", &os_name, NULL);
- detect_virtualization(&v);
+ get_virtualization(&v);
r = asprintf(&json,
"{ \"machine_id\" : \"" SD_ID128_FORMAT_STR "\","
@@ -797,7 +845,7 @@ static int request_handler_machine(
SD_ID128_FORMAT_VAL(bid),
hostname_cleanup(hostname),
os_name ? os_name : "Linux",
- v,
+ v ? v : "bare",
(unsigned long long) usage,
(unsigned long long) cutoff_from,
(unsigned long long) cutoff_to);