systemd/0943-loginctl-use-bus_map_all_properties.patch

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From 5d2f49451c5e697d6e3548cfc9087ef3c16aa969 Mon Sep 17 00:00:00 2001
From: David Tardon <dtardon@redhat.com>
Date: Fri, 19 May 2023 13:33:58 +0200
Subject: [PATCH] loginctl: use bus_map_all_properties
(cherry picked from commit 5b7d1536d0c2ccf0b7688490f31c92c1e766ea44)
Related: #2156786
---
src/login/loginctl.c | 78 ++++++++++++++++++++++----------------------
1 file changed, 39 insertions(+), 39 deletions(-)
diff --git a/src/login/loginctl.c b/src/login/loginctl.c
index 079c0e2b17..9e4c710062 100644
--- a/src/login/loginctl.c
+++ b/src/login/loginctl.c
@@ -47,6 +47,27 @@ static bool arg_ask_password = true;
static unsigned arg_lines = 10;
static OutputMode arg_output = OUTPUT_SHORT;
+typedef struct SessionStatusInfo {
+ const char *id;
+ uid_t uid;
+ const char *name;
+ struct dual_timestamp timestamp;
+ unsigned int vtnr;
+ const char *seat;
+ const char *tty;
+ const char *display;
+ bool remote;
+ const char *remote_host;
+ const char *remote_user;
+ const char *service;
+ pid_t leader;
+ const char *type;
+ const char *class;
+ const char *state;
+ const char *scope;
+ const char *desktop;
+} SessionStatusInfo;
+
static OutputFlags get_output_flags(void) {
return
@@ -112,6 +133,12 @@ static int show_table(Table *table, const char *word) {
}
static int list_sessions(int argc, char *argv[], void *userdata) {
+
+ static const struct bus_properties_map map[] = {
+ { "TTY", "s", NULL, offsetof(SessionStatusInfo, tty) },
+ {},
+ };
+
_cleanup_(sd_bus_error_free) sd_bus_error error = SD_BUS_ERROR_NULL;
_cleanup_(sd_bus_message_unrefp) sd_bus_message *reply = NULL;
_cleanup_(table_unrefp) Table *table = NULL;
@@ -148,9 +175,10 @@ static int list_sessions(int argc, char *argv[], void *userdata) {
for (;;) {
_cleanup_(sd_bus_error_free) sd_bus_error e = SD_BUS_ERROR_NULL;
- _cleanup_(sd_bus_message_unrefp) sd_bus_message *reply_tty = NULL;
- const char *id, *user, *seat, *object, *tty = NULL;
+ const char *id, *user, *seat, *object;
uint32_t uid;
+ _cleanup_(sd_bus_message_unrefp) sd_bus_message *m = NULL;
+ SessionStatusInfo i = {};
r = sd_bus_message_read(reply, "(susso)", &id, &uid, &user, &seat, &object);
if (r < 0)
@@ -158,21 +186,14 @@ static int list_sessions(int argc, char *argv[], void *userdata) {
if (r == 0)
break;
- r = sd_bus_get_property(
- bus,
- "org.freedesktop.login1",
- object,
- "org.freedesktop.login1.Session",
- "TTY",
- &e,
- &reply_tty,
- "s");
- if (r < 0)
- log_warning_errno(r, "Failed to get TTY for session %s: %s", id, bus_error_message(&e, r));
- else {
- r = sd_bus_message_read(reply_tty, "s", &tty);
- if (r < 0)
- return bus_log_parse_error(r);
+ r = bus_map_all_properties(bus, "org.freedesktop.login1", object, map, BUS_MAP_BOOLEAN_AS_BOOL, &e, &m, &i);
+ if (r < 0) {
+ if (sd_bus_error_has_name(&e, SD_BUS_ERROR_UNKNOWN_OBJECT))
+ /* The session is already closed when we're querying the property */
+ continue;
+
+ log_warning_errno(r, "Failed to get properties of session %s, ignoring: %s",
+ id, bus_error_message(&e, r));
}
r = table_add_many(table,
@@ -180,7 +201,7 @@ static int list_sessions(int argc, char *argv[], void *userdata) {
TABLE_UINT32, uid,
TABLE_STRING, user,
TABLE_STRING, seat,
- TABLE_STRING, strna(tty));
+ TABLE_STRING, strna(i.tty));
if (r < 0)
return log_error_errno(r, "Failed to add row to table: %m");
}
@@ -341,27 +362,6 @@ static int show_unit_cgroup(sd_bus *bus, const char *interface, const char *unit
return 0;
}
-typedef struct SessionStatusInfo {
- const char *id;
- uid_t uid;
- const char *name;
- struct dual_timestamp timestamp;
- unsigned int vtnr;
- const char *seat;
- const char *tty;
- const char *display;
- bool remote;
- const char *remote_host;
- const char *remote_user;
- const char *service;
- pid_t leader;
- const char *type;
- const char *class;
- const char *state;
- const char *scope;
- const char *desktop;
-} SessionStatusInfo;
-
typedef struct UserStatusInfo {
uid_t uid;
bool linger;