From 262ccef84eddf3714183b80729a157504615468e Mon Sep 17 00:00:00 2001 From: Simon Ser Date: Wed, 22 Sep 2021 09:40:02 +0000 Subject: logind: check if session is active on startup Up until now we assumed the session was always active on startup. This might not be the case. Instead, read the current value of the Active property. --- libseat/backend/logind.c | 22 +++++++++++++++++++++- 1 file changed, 21 insertions(+), 1 deletion(-) (limited to 'libseat') diff --git a/libseat/backend/logind.c b/libseat/backend/logind.c index dd050ce..ceafc6c 100644 --- a/libseat/backend/logind.c +++ b/libseat/backend/logind.c @@ -303,6 +303,7 @@ static bool session_activate(struct backend_logind *session) { sd_bus_message *msg = NULL; sd_bus_error error = SD_BUS_ERROR_NULL; + // Note: the Activate call might not make the session active immediately int ret = sd_bus_call_method(session->bus, "org.freedesktop.login1", session->path, "org.freedesktop.login1.Session", "Activate", &error, &msg, ""); if (ret < 0) { @@ -314,6 +315,22 @@ static bool session_activate(struct backend_logind *session) { return ret >= 0; } +static bool session_check_active(struct backend_logind *session) { + sd_bus_error error = SD_BUS_ERROR_NULL; + int active = 0; + int ret = sd_bus_get_property_trivial(session->bus, "org.freedesktop.login1", session->path, + "org.freedesktop.login1.Session", "Active", &error, + 'b', &active); + if (ret < 0) { + log_errorf("Could not check if session is active: %s", error.message); + } else { + session->active = (bool)active; + } + + sd_bus_error_free(&error); + return ret >= 0; +} + static bool take_control(struct backend_logind *session) { sd_bus_message *msg = NULL; sd_bus_error error = SD_BUS_ERROR_NULL; @@ -699,6 +716,10 @@ static struct libseat *logind_open_seat(const struct libseat_seat_listener *list goto error; } + if (!session_check_active(backend)) { + goto error; + } + if (!take_control(backend)) { goto error; } @@ -709,7 +730,6 @@ static struct libseat *logind_open_seat(const struct libseat_seat_listener *list } backend->initial_setup = true; - backend->active = true; backend->seat_listener = listener; backend->seat_listener_data = data; backend->base.impl = &logind_impl; -- cgit v1.2.3