X-Git-Url: https://uglyman.kremlin.cc/gitweb/gitweb.cgi?p=systembsd.git;a=blobdiff_plain;f=src%2Finterfaces%2Ftimedated%2Ftimedated.c;h=c5d6bdf8bb87a208867c0452563828e35dfd98f1;hp=a0d536de09c7ad9c7a8813f8339495eaff8c6b98;hb=03f12ac7edc62424667774b00fd250fe54879c29;hpb=9728ae1fd2b7c7851673a27f698ae2e3c8c03461 diff --git a/src/interfaces/timedated/timedated.c b/src/interfaces/timedated/timedated.c index a0d536d..c5d6bdf 100644 --- a/src/interfaces/timedated/timedated.c +++ b/src/interfaces/timedated/timedated.c @@ -18,15 +18,20 @@ #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; @@ -35,34 +40,144 @@ 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 */ + +struct timezone_checksum_pair { + + gchar *path; + gchar *sum; + gboolean posix; + gboolean right; +}; + +static struct timezone_checksum_pair tz_table[5000]; + /* --- begin method/property/dbus signal code --- */ -/*static gboolean -on_handle_set_hostname(Timedate1 *hn1_passed_interf, - GDBusMethodInvocation *invoc, - const gchar *greet, - gpointer data) { +static gboolean +on_handle_set_time(Timedate1 *hn1_passed_interf, + GDBusMethodInvocation *invoc, + const gchar *greet, + gpointer data) { return FALSE; -}*/ +} -/*const gchar * -our_get_hostname() { +static gboolean +on_handle_set_timezone(Timedate1 *hn1_passed_interf, + GDBusMethodInvocation *invoc, + const gchar *greet, + gpointer data) { + return FALSE; +} - gchar *hostname_buf, *ret; - size_t hostname_divider; +static gboolean +on_handle_set_local_rtc(Timedate1 *hn1_passed_interf, + GDBusMethodInvocation *invoc, + const gchar *greet, + gpointer data) { + return FALSE; +} - hostname_buf = (gchar*) g_malloc0(MAXHOSTNAMELEN); - ret = (gchar*) g_malloc0(MAXHOSTNAMELEN); - g_ptr_array_add(timedated_freeable, hostname_buf); - g_ptr_array_add(timedated_freeable, ret); +static gboolean +on_handle_set_ntp(Timedate1 *hn1_passed_interf, + GDBusMethodInvocation *invoc, + const gchar *greet, + gpointer data) { + return FALSE; +} - if(gethostname(hostname_buf, MAXHOSTNAMELEN)) - return ""; +const gchar * +our_get_timezone() { + + GStatBuf *stat_zoneinfo; + gchar *find_cmd, *readlink_path, *ret, *argvp, *hash_to_match; + gint argcp; + GError *err; + struct timezone_checksum_pair tmp; + + find_cmd = (gchar *) g_malloc0(2048); + stat_zoneinfo = (GStatBuf *) g_malloc0(8192); + err = (GError *) g_malloc0(2048); + + 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); + + gchar *split[2] = { readlink_path, "" }; + tmp = parse_timezone_path(split); + + ret = tmp.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); + hash_to_match = get_file_sha256(OS_LOCALTIME); + + ret = lookup_hash(hash_to_match); + + if(hash_to_match) + g_free(hash_to_match); + } + + 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; +} - hostname_divider = strcspn(hostname_buf, "."); +guint64 +our_get_time_usec() { - return strncpy(ret, hostname_buf, hostname_divider); -}*/ + 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 --- */ @@ -70,16 +185,25 @@ static void timedated_on_bus_acquired(GDBusConnection *conn, const gchar *name, gpointer user_data) { - g_print("got bus/name, exporting %s's interface...\n", name); + 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-hostname", G_CALLBACK(on_handle_set_hostname), NULL);*/ - - /* set our properties before export - timedate1_set_hostname(timedated_interf, our_get_hostname()); */ - + /* 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", @@ -96,7 +220,7 @@ static void timedated_on_bus_acquired(GDBusConnection *conn, } static void timedated_on_name_acquired(GDBusConnection *conn, - const gchar *name, + const gchar *name, gpointer user_data) { g_printf("success!\n"); @@ -154,10 +278,13 @@ int main() { set_signal_handlers(); - timedated_loop = g_main_loop_new(NULL, TRUE); - timedated_freeable = g_ptr_array_new(); + if(!build_lookup_table()) + return 1; + + timedated_loop = g_main_loop_new(NULL, TRUE); + timedated_freeable = g_ptr_array_new(); - bus_descriptor = g_bus_own_name(G_BUS_TYPE_SYSTEM, + bus_descriptor = g_bus_own_name(G_BUS_TYPE_SYSTEM, "org.freedesktop.timedate1", G_BUS_NAME_OWNER_FLAGS_NONE, timedated_on_bus_acquired, @@ -166,15 +293,115 @@ int main() { NULL, NULL); - g_main_loop_run(timedated_loop); + 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); + g_main_loop_unref(timedated_loop); /* guaranteed unownable */ - g_bus_unown_name(bus_descriptor); + 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; + return 0; +} + +static struct timezone_checksum_pair parse_timezone_path(gchar **pair) { + + gchar *prefix_pattern, *right_prefix_pattern, *posix_prefix_pattern, *lean_path; + GRegex *prefix, *posix, *right; + GError *err = NULL; + struct timezone_checksum_pair ret = { NULL, NULL, FALSE, FALSE }; + + if(!pair[0]) + return ret; + + prefix_pattern = (gchar *) g_malloc0(4096); + right_prefix_pattern = (gchar *) g_malloc0(4096); + posix_prefix_pattern = (gchar *) g_malloc0(4096); + + g_sprintf(prefix_pattern, "%s/", OS_TIMEZONE_PATH); + g_sprintf(posix_prefix_pattern, "%s/posix/", OS_TIMEZONE_PATH); + g_sprintf(right_prefix_pattern, "%s/right/", OS_TIMEZONE_PATH); + + prefix = g_regex_new(prefix_pattern, 0, 0, &err); + posix = g_regex_new(posix_prefix_pattern, 0, 0, &err); + right = g_regex_new(right_prefix_pattern, 0, 0, &err); + + if(g_regex_match_full(posix, pair[0], -1, 0, G_REGEX_MATCH_NOTEMPTY, NULL, NULL)) { + + ret.posix = TRUE; + lean_path = g_regex_replace_literal(posix, pair[0], -1, 0, "", G_REGEX_MATCH_NOTEMPTY, NULL); + + } else if(g_regex_match_full(right, pair[0], -1, 0, G_REGEX_MATCH_NOTEMPTY, NULL, NULL)) { + + ret.right = TRUE; + lean_path = g_regex_replace_literal(right, pair[0], -1, 0, "", G_REGEX_MATCH_NOTEMPTY, NULL); + + } else + lean_path = g_regex_replace_literal(prefix, pair[0], -1, 0, "", G_REGEX_MATCH_NOTEMPTY, NULL); + + ret.path = lean_path; + + ret.sum = g_malloc0(256); + g_strlcpy(ret.sum, pair[1], 66); + + g_regex_unref(prefix); + g_regex_unref(right); + g_regex_unref(posix); + + return ret; +} + +/* TODO need to deconstruct tz_table on exit */ +static gboolean build_lookup_table() { + + gchar *find_cmd, **map_pairs, *find_output, *path_buf, *sum_buf, **entry_buf; + GError *err; + gboolean ret; + gint i; + + i = 0; + err = NULL; + ret = TRUE; + + find_cmd = (gchar *) g_malloc0(4096); + find_output = (gchar *) g_malloc0(1000000); + + g_sprintf(find_cmd, "/bin/sh -c \"find %s -type f -exec cksum -a sha256 {} \\; | sed -E 's/SHA256 \\(//g' | sed -E 's/\\) = /=/g'\"", OS_TIMEZONE_PATH); + + if(!g_spawn_command_line_sync(find_cmd, &find_output, NULL, NULL, &err)) { + + g_printf("error running `%s`\n", find_cmd); + ret = FALSE; + } + + map_pairs = g_strsplit(find_output, "\n", INT_MAX); + + while(map_pairs[i] && (entry_buf = g_strsplit(map_pairs[i], "=", INT_MAX))) { + + tz_table[i] = parse_timezone_path(entry_buf); + + g_strfreev(entry_buf); + i++; + } + + g_free(find_output); + g_free(find_cmd); + g_free(map_pairs); + + return ret; +} + +static gchar *lookup_hash(gchar *hash) { + + gint i = 0; + + while(tz_table[i].sum) + if(!g_strcmp0(tz_table[i].sum, hash)) + return tz_table[i].path; + else + i++; + + return NULL; }