X-Git-Url: https://uglyman.kremlin.cc/gitweb/gitweb.cgi?a=blobdiff_plain;f=src%2Finterfaces%2Ftimedated%2Ftimedated.c;h=56f62b2887b760b49765d739e72e586b9e1db825;hb=0ac4fd1d17dce32e2ee028f563ff48ff16e24275;hp=cf9b3f9a97db1cb4114d3eefdc18af3a3267f355;hpb=3b82e3c1701831a4cc48a42a992997610bdd6266;p=systembsd.git diff --git a/src/interfaces/timedated/timedated.c b/src/interfaces/timedated/timedated.c index cf9b3f9..56f62b2 100644 --- a/src/interfaces/timedated/timedated.c +++ b/src/interfaces/timedated/timedated.c @@ -14,3 +14,292 @@ * OR IN CONNECTION WITH THE USE OR PERFORMANCE OF THIS SOFTWARE. */ +#include +#include +#include + +#include +#include +#include + +#include +#include +#include +#include + +#include "timedated-gen.h" +#include "timedated.h" + +#include "../../util.h" + +GPtrArray *timedated_freeable; +Timedate1 *timedated_interf; + +GMainLoop *timedated_loop; + +guint bus_descriptor; +gboolean dbus_interface_exported; /* reliable because of gdbus operational guarantees */ + +const gchar *OS_LOCALTIME = "/etc/localtime"; /* current timezone file */ +const gchar *OS_TIMEZONE_PATH = "/usr/share/zoneinfo"; /* path to system timezone files */ + +/* --- begin method/property/dbus signal code --- */ + +static gboolean +on_handle_set_time(Timedate1 *hn1_passed_interf, + GDBusMethodInvocation *invoc, + const gchar *greet, + gpointer data) { + return FALSE; +} + +static gboolean +on_handle_set_timezone(Timedate1 *hn1_passed_interf, + GDBusMethodInvocation *invoc, + const gchar *greet, + gpointer data) { + return FALSE; +} + +static gboolean +on_handle_set_local_rtc(Timedate1 *hn1_passed_interf, + GDBusMethodInvocation *invoc, + const gchar *greet, + gpointer data) { + return FALSE; +} + +static gboolean +on_handle_set_ntp(Timedate1 *hn1_passed_interf, + GDBusMethodInvocation *invoc, + const gchar *greet, + gpointer data) { + return FALSE; +} + +const gchar * +our_get_timezone() { + + GStatBuf *stat_zoneinfo; + gchar *find_cmd, *readlink_path, *ret; + GError *err = NULL; + + find_cmd = (gchar *) g_malloc0(2048); + stat_zoneinfo = (GStatBuf*) g_malloc0(8192); + + if(g_stat(OS_LOCALTIME, stat_zoneinfo)) { + + g_printf("could not read from %s! please symlink or copy a timezone file from %s to %s!\n", OS_LOCALTIME, OS_TIMEZONE_PATH, OS_LOCALTIME); + ret = NULL; + + } else if(g_file_test(OS_LOCALTIME, G_FILE_TEST_IS_SYMLINK)) { + + readlink_path = g_file_read_link(OS_LOCALTIME, &err); + ret = parse_timezone_path(readlink_path); + + if(readlink_path) + g_free(readlink_path); + + } else { + + g_printf("%s is not a symlink! attempting to match checksums in %s...\n", OS_LOCALTIME, OS_TIMEZONE_PATH); + g_sprintf(find_cmd, "find %s -type f", OS_TIMEZONE_PATH); + ret = NULL; + } + + return ret; +} + +gboolean +our_get_local_rtc() { + + gboolean ret = FALSE; + + return ret; +} + +gboolean +our_get_can_ntp() { + + const gboolean ret = FALSE; + + return ret; +} + +gboolean +our_get_ntp() { + + const gboolean ret = FALSE; + + return ret; +} + +gboolean +our_get_ntpsynchronized() { + + const gboolean ret = FALSE; + + return ret; +} + +guint64 +our_get_time_usec() { + + guint64 ret = 0; + + return ret; +} + +guint64 +our_get_rtc_time_usec() { + + guint64 ret = 0; + + return ret; +} + +/* --- end method/property/dbus signal code, begin bus/name handlers --- */ + +static void timedated_on_bus_acquired(GDBusConnection *conn, + const gchar *name, + gpointer user_data) { + + g_printf("got bus/name, exporting %s's interface...\n", name); + + timedated_interf = timedate1_skeleton_new(); + + /* attach function pointers to generated struct's method handlers */ + g_signal_connect(timedated_interf, "handle-set-time", G_CALLBACK(on_handle_set_time), NULL); + g_signal_connect(timedated_interf, "handle-set-timezone", G_CALLBACK(on_handle_set_timezone), NULL); + g_signal_connect(timedated_interf, "handle-set-local-rtc", G_CALLBACK(on_handle_set_local_rtc), NULL); + g_signal_connect(timedated_interf, "handle-set-ntp", G_CALLBACK(on_handle_set_ntp), NULL); + /* set our properties before export */ + timedate1_set_timezone(timedated_interf, our_get_timezone()); + timedate1_set_local_rtc(timedated_interf, our_get_local_rtc()); + timedate1_set_can_ntp(timedated_interf, our_get_can_ntp()); + timedate1_set_ntp(timedated_interf, our_get_ntp()); + timedate1_set_ntpsynchronized(timedated_interf, our_get_ntpsynchronized()); + timedate1_set_time_usec(timedated_interf, our_get_time_usec()); + timedate1_set_rtctime_usec(timedated_interf, our_get_rtc_time_usec()); + + if(!g_dbus_interface_skeleton_export(G_DBUS_INTERFACE_SKELETON(timedated_interf), + conn, + "/org/freedesktop/timedate1", + NULL)) { + + g_printf("failed to export %s's interface!\n", name); + timedated_mem_clean(); + + } else { + + dbus_interface_exported = TRUE; + g_printf("exported %s's interface on the system bus...\n", name); + } +} + +static void timedated_on_name_acquired(GDBusConnection *conn, + const gchar *name, + gpointer user_data) { + + g_printf("success!\n"); +} + +static void timedated_on_name_lost(GDBusConnection *conn, + const gchar *name, + gpointer user_data) { + + if(!conn) { + + g_printf("failed to connect to the system bus while trying to acquire name '%s': either dbus-daemon isn't running or we don't have permission to push names and/or their interfaces to it.\n", name); + timedated_mem_clean(); + } + + g_print("lost name %s, exiting...\n", name); + + timedated_mem_clean(); +} + +/* --- end bus/name handlers, begin misc unix functions --- */ + +/* safe call to clean and then exit + * this stops our GMainLoop safely before letting main() return */ +void timedated_mem_clean() { + + g_printf("exiting...\n"); + + if(dbus_interface_exported) + g_dbus_interface_skeleton_unexport(G_DBUS_INTERFACE_SKELETON(timedated_interf)); + + if(g_main_loop_is_running(timedated_loop)) + g_main_loop_quit(timedated_loop); + +} + +/* wrapper for glib's unix signal handling; called only once if terminating signal is raised against us */ +gboolean unix_sig_terminate_handler(gpointer data) { + + g_printf("caught SIGINT/HUP/TERM, exiting\n"); + + timedated_mem_clean(); + return G_SOURCE_REMOVE; +} + +void set_signal_handlers() { + + /* we don't care about its descriptor, we never need to unregister these */ + g_unix_signal_add(SIGINT, unix_sig_terminate_handler, NULL); + g_unix_signal_add(SIGHUP, unix_sig_terminate_handler, NULL); + g_unix_signal_add(SIGTERM, unix_sig_terminate_handler, NULL); +} + +int main() { + + set_signal_handlers(); + + timedated_loop = g_main_loop_new(NULL, TRUE); + timedated_freeable = g_ptr_array_new(); + + bus_descriptor = g_bus_own_name(G_BUS_TYPE_SYSTEM, + "org.freedesktop.timedate1", + G_BUS_NAME_OWNER_FLAGS_NONE, + timedated_on_bus_acquired, + timedated_on_name_acquired, + timedated_on_name_lost, + NULL, + NULL); + + g_main_loop_run(timedated_loop); + /* runs until single g_main_loop_quit() call is raised inside _mem_clean() */ + g_main_loop_unref(timedated_loop); + + /* guaranteed unownable */ + g_bus_unown_name(bus_descriptor); + + /* at this point no operations can occur with our data, it is safe to free it + its container */ + g_ptr_array_free(timedated_freeable, TRUE); + + return 0; +} + +static gchar *parse_timezone_path(gchar *full_path) { + + gchar *prefix_pattern; + GRegex *prefix, *posix, *right; + GError *err = NULL; + + if(!full_path) + return NULL; + + prefix_pattern = (gchar *) g_malloc0(4096); + g_sprintf(prefix_pattern, "^%s/$", OS_TIMEZONE_PATH); + + prefix = g_regex_new(prefix_pattern, 0, 0, &err); + posix = g_regex_new("^posix/$", 0, 0, &err); + right = g_regex_new("^right/$", 0, 0, &err); + + g_regex_unref(prefix); + g_regex_unref(right); + g_regex_unref(posix); + + return NULL; /* TODO temp */ +}