#include <signal.h>
#include <sys/types.h>
+#include <sys/time.h>
+#include <sys/stat.h>
+#include <errno.h>
#include <time.h>
#include <string.h>
+#include <tzfile.h>
#include <glib/gprintf.h>
#include <glib-unix.h>
#include "../../util.h"
+#define TZNAME_MAX PATH_MAX
+
GPtrArray *timedated_freeable;
Timedate1 *timedated_interf;
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 */
+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_time(Timedate1 *hn1_passed_interf,
+on_handle_set_time(Timedate1 *td1_passed_interf,
GDBusMethodInvocation *invoc,
const gchar *greet,
gpointer data) {
- return FALSE;
+
+ GVariant *params;
+ gint64 proposed_time, cur_time;
+ const gchar *bus_name;
+ gboolean policykit_auth;
+ check_auth_result is_authed;
+ gboolean relative; /* relative if passed time_t is meant to be added to current time */
+ struct timespec *new_time;
+
+ params = g_dbus_method_invocation_get_parameters(invoc);
+ g_variant_get(params, "(xbb)", &proposed_time, &relative, &policykit_auth);
+ bus_name = g_dbus_method_invocation_get_sender(invoc);
+
+ is_authed = polkit_try_auth(bus_name, "org.freedesktop.timedate1.set-time", policykit_auth);
+
+ switch(is_authed) {
+
+ case AUTHORIZED_NATIVELY:
+ case AUTHORIZED_BY_PROMPT:
+ break;
+
+ case UNAUTHORIZED_NATIVELY:
+ case UNAUTHORIZED_FAILED_PROMPT:
+ g_dbus_method_invocation_return_dbus_error(invoc, "org.freedesktop.timedate1.Error.EACCES", "Insufficient permissions to set system time.");
+ return FALSE;
+
+ case ERROR_BADBUS:
+ g_dbus_method_invocation_return_dbus_error(invoc, "org.freedesktop.timedate1.Error.EFAULT", "Provided bus name is invalid.");
+ return FALSE;
+
+ case ERROR_BADACTION:
+ g_dbus_method_invocation_return_dbus_error(invoc, "org.freedesktop.timedate1.Error.EFAULT", "Provided action ID is invalid.");
+ return FALSE;
+
+ case ERROR_GENERIC:
+ default:
+ g_dbus_method_invocation_return_dbus_error(invoc, "org.freedesktop.timedate1.Error.ECANCELED", "Failed to set system time for unknown reasons.");
+ return FALSE;
+ }
+
+ if(!proposed_time) {
+
+ timedate1_complete_set_time(td1_passed_interf, invoc);
+ return TRUE;
+
+ } else if(relative) {
+
+ cur_time = g_get_real_time();
+
+ if(proposed_time < 0 && cur_time + proposed_time > cur_time) {
+
+ g_dbus_method_invocation_return_dbus_error(invoc, "org.freedesktop.timedate1.Error.EINVAL", "Resultant time out of bounds.");
+ return FALSE;
+
+ } else if(proposed_time > 0 && cur_time + proposed_time < cur_time) {
+
+ g_dbus_method_invocation_return_dbus_error(invoc, "org.freedesktop.timedate1.Error.EINVAL", "Resultant time out of bounds.");
+ return FALSE;
+ }
+
+ new_time = mktimespec(proposed_time);
+
+ if(!clock_settime(CLOCK_REALTIME, new_time)) {
+
+ timedate1_complete_set_time(td1_passed_interf, invoc);
+ return TRUE;
+
+ } else {
+
+ g_dbus_method_invocation_return_dbus_error(invoc, "org.freedesktop.timedate1.Error.ECANCELED", "Failed to set system time for unknown reasons.");
+ return FALSE;
+ }
+
+ } else if(proposed_time > 0) {
+
+
+ new_time = mktimespec(proposed_time);
+
+ if(!clock_settime(CLOCK_REALTIME, new_time)) {
+
+ timedate1_complete_set_time(td1_passed_interf, invoc);
+ return TRUE;
+
+ } else {
+
+ g_dbus_method_invocation_return_dbus_error(invoc, "org.freedesktop.timedate1.Error.ECANCELED", "Failed to set system time for unknown reasons.");
+ return FALSE;
+ }
+
+ } else {
+
+ g_dbus_method_invocation_return_dbus_error(invoc, "org.freedesktop.timedate1.Error.EINVAL", "Resultant time out of bounds.");
+ return FALSE;
+ }
}
static gboolean
-on_handle_set_timezone(Timedate1 *hn1_passed_interf,
+on_handle_set_timezone(Timedate1 *td1_passed_interf,
GDBusMethodInvocation *invoc,
const gchar *greet,
gpointer data) {
- return FALSE;
+
+ GVariant *params;
+ gchar *proposed_tz;
+ const gchar *bus_name;
+ gboolean policykit_auth;
+ check_auth_result is_authed;
+
+ gchar *tz_target_path;
+ struct stat *statbuf;
+ extern int errno;
+
+ params = g_dbus_method_invocation_get_parameters(invoc);
+ g_variant_get(params, "(sb)", &proposed_tz, &policykit_auth);
+ bus_name = g_dbus_method_invocation_get_sender(invoc);
+
+ is_authed = polkit_try_auth(bus_name, "org.freedesktop.timedate1.set-timezone", policykit_auth);
+
+ switch(is_authed) {
+
+ case AUTHORIZED_NATIVELY:
+ case AUTHORIZED_BY_PROMPT:
+ break;
+
+ case UNAUTHORIZED_NATIVELY:
+ case UNAUTHORIZED_FAILED_PROMPT:
+ g_dbus_method_invocation_return_dbus_error(invoc, "org.freedesktop.timedate1.Error.EACCES", "Insufficient permissions to set timezone.");
+ return FALSE;
+
+ case ERROR_BADBUS:
+ g_dbus_method_invocation_return_dbus_error(invoc, "org.freedesktop.timedate1.Error.EFAULT", "Provided bus name is invalid.");
+ return FALSE;
+
+ case ERROR_BADACTION:
+ g_dbus_method_invocation_return_dbus_error(invoc, "org.freedesktop.timedate1.Error.EFAULT", "Provided action ID is invalid.");
+ return FALSE;
+
+ case ERROR_GENERIC:
+ default:
+ g_dbus_method_invocation_return_dbus_error(invoc, "org.freedesktop.timedate1.Error.ECANCELED", "Failed to set timezone for unknown reasons.");
+ return FALSE;
+ }
+
+ statbuf = (struct stat*) calloc(1, sizeof(struct stat));
+ tz_target_path = (gchar *) calloc(1, TZNAME_MAX);
+
+ g_ptr_array_add(timedated_freeable, statbuf);
+ g_ptr_array_add(timedated_freeable, tz_target_path);
+
+ strlcat(tz_target_path, TZDIR, TZNAME_MAX);
+ strlcat(tz_target_path, "/", TZNAME_MAX);
+ strlcat(tz_target_path, proposed_tz, TZNAME_MAX);
+
+ if(strstr(tz_target_path, "../")) {
+
+ g_dbus_method_invocation_return_dbus_error(invoc, "org.freedesktop.timedate1.Error.EBADF", "Provided timezone is invalid.");
+ return FALSE;
+ }
+
+ if(!statbuf)
+ return FALSE;
+
+ if(lstat(tz_target_path, statbuf)) {
+
+ switch(errno) {
+
+ case ENOENT:
+ g_dbus_method_invocation_return_dbus_error(invoc, "org.freedesktop.timedate1.Error.ENOENT", "Specified timezone does not exist.");
+ break;
+
+ default:
+ g_dbus_method_invocation_return_dbus_error(invoc, "org.freedesktop.timedate1.Error.EBADF", "Specified timezone is invalid.");
+ break;
+ }
+
+ return FALSE;
+ }
+
+ if(!S_ISREG(statbuf->st_mode)) {
+
+ g_dbus_method_invocation_return_dbus_error(invoc, "org.freedesktop.timedate1.Error.EBADF", "Specified path is of an inappropriate type.");
+ return FALSE;
+ }
+
+ memset(statbuf, 0, sizeof statbuf);
+
+ if(!lstat(TZDEFAULT, statbuf))
+ if(remove(TZDEFAULT))
+ return FALSE;
+
+ if(symlink(tz_target_path, TZDEFAULT))
+ return FALSE;
+
+
+ timedate1_complete_set_timezone(td1_passed_interf, invoc);
+
+ return TRUE;
}
static gboolean
-on_handle_set_local_rtc(Timedate1 *hn1_passed_interf,
+on_handle_set_local_rtc(Timedate1 *td1_passed_interf,
GDBusMethodInvocation *invoc,
const gchar *greet,
gpointer data) {
- return FALSE;
+
+ g_dbus_method_invocation_return_dbus_error(invoc, "org.freedesktop.timedate1.Error.ENODEV", "Unix RTC must be in UTC.");
+ return TRUE;
}
static gboolean
-on_handle_set_ntp(Timedate1 *hn1_passed_interf,
+on_handle_set_ntp(Timedate1 *td1_passed_interf,
GDBusMethodInvocation *invoc,
const gchar *greet,
gpointer data) {
- return FALSE;
+
+ GVariant *params;
+ const gchar *bus_name;
+ gboolean policykit_auth;
+ check_auth_result is_authed;
+
+ gint ntpd_notrunning, ntpd_notenabled; /* this logic flip is due to rcctl returning 0 on success,
+ * in this case an error means ntpd is not running or not enabled */
+ gboolean proposed_ntpstate;
+ GError *sh_errors;
+
+ extern int errno;
+
+ params = g_dbus_method_invocation_get_parameters(invoc);
+ g_variant_get(params, "(bb)", &proposed_ntpstate, &policykit_auth);
+ bus_name = g_dbus_method_invocation_get_sender(invoc);
+
+ is_authed = polkit_try_auth(bus_name, "org.freedesktop.timedate1.set-ntp", policykit_auth);
+
+ switch(is_authed) {
+
+ case AUTHORIZED_NATIVELY:
+ case AUTHORIZED_BY_PROMPT:
+ break;
+
+ case UNAUTHORIZED_NATIVELY:
+ case UNAUTHORIZED_FAILED_PROMPT:
+ g_dbus_method_invocation_return_dbus_error(invoc, "org.freedesktop.timedate1.Error.EACCES", "Insufficient permissions to toggle the NTP daemon.");
+ return FALSE;
+
+ case ERROR_BADBUS:
+ g_dbus_method_invocation_return_dbus_error(invoc, "org.freedesktop.timedate1.Error.EFAULT", "Provided bus name is invalid.");
+ return FALSE;
+
+ case ERROR_BADACTION:
+ g_dbus_method_invocation_return_dbus_error(invoc, "org.freedesktop.timedate1.Error.EFAULT", "Provided action ID is invalid.");
+ return FALSE;
+
+ case ERROR_GENERIC:
+ default:
+ g_dbus_method_invocation_return_dbus_error(invoc, "org.freedesktop.timedate1.Error.ECANCELED", "Failed to toggle the NTP daemon for unknown reasons.");
+ return FALSE;
+ }
+
+ ntpd_notrunning = 0; /* GLib does not bother asserting the passed return value int to zero */
+ ntpd_notenabled = 0; /* if the program's exit status is also zero, hence this decl. */
+
+ if((ntpd_notrunning = system("rcctl check ntpd > /dev/null 2>&1")) == -1)
+ return FALSE;
+
+ if((ntpd_notenabled = system("rcctl status ntpd > /dev/null 2>&1")) == -1)
+ return FALSE;
+
+ if(proposed_ntpstate) {
+
+ if(ntpd_notrunning)
+ system("rcctl -f start ntpd > /dev/null 2>&1");
+
+ if(ntpd_notenabled)
+ system("rcctl enable ntpd > /dev/null 2>&1");
+
+ } else {
+
+ if(!ntpd_notrunning)
+ system("rcctl stop ntpd > /dev/null 2>&1");
+
+ if(!ntpd_notenabled)
+ system("rcctl disable ntpd > /dev/null 2>&1");
+ }
+
+ timedate1_complete_set_ntp(td1_passed_interf, invoc);
+
+ return TRUE;
}
const gchar *
our_get_timezone() {
GStatBuf *stat_zoneinfo;
- gchar *find_cmd, *readlink_path, *ret;
- GError *err = NULL;
+ 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);
+ find_cmd = (gchar *) g_malloc0(2048);
+ stat_zoneinfo = (GStatBuf *) g_malloc0(8192);
+ err = (GError *) g_malloc0(2048);
if(g_stat(OS_LOCALTIME, stat_zoneinfo)) {
} 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);
+
+ 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);
- g_sprintf(find_cmd, "find %s -type f", OS_TIMEZONE_PATH);
- ret = NULL;
+ hash_to_match = get_file_sha256(OS_LOCALTIME);
+
+ /* ret = lookup_hash(hash_to_match); */
+ return FALSE; /* TODO fix me for real */
+
+ if(hash_to_match)
+ g_free(hash_to_match);
}
+
+
return ret;
}
+/* Unix time must be in UTC. */
gboolean
our_get_local_rtc() {
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());
set_signal_handlers();
+ /*if(!build_lookup_table())
+ return 1; */
+
timedated_loop = g_main_loop_new(NULL, TRUE);
timedated_freeable = g_ptr_array_new();
return 0;
}
-static gchar *parse_timezone_path(gchar *full_path) {
+static struct timezone_checksum_pair parse_timezone_path(gchar **pair) {
- gchar *prefix_pattern;
+ 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(!full_path)
- return NULL;
+ if(!pair[0])
+ return ret;
prefix_pattern = (gchar *) g_malloc0(4096);
- g_sprintf(prefix_pattern, "^%s/$", OS_TIMEZONE_PATH);
+ right_prefix_pattern = (gchar *) g_malloc0(4096);
+ posix_prefix_pattern = (gchar *) g_malloc0(4096);
+
+ g_sprintf(prefix_pattern, "%s/", OS_TIMEZONE_PATH);
+ g_sprintf(posix_prefix_pattern, "%s/posix/", OS_TIMEZONE_PATH);
+ g_sprintf(right_prefix_pattern, "%s/right/", OS_TIMEZONE_PATH);
prefix = g_regex_new(prefix_pattern, 0, 0, &err);
- posix = g_regex_new("^posix/$", 0, 0, &err);
- right = g_regex_new("^right/$", 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 NULL; /* TODO temp */
+ 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;
+}*/
+
+/* takes number of microseconds since epoch and returns a
+ * ptr to a timespec suitable to be passed to clock_settime(3)
+ */
+static struct timespec* mktimespec(gint64 us) {
+
+ long nanoseconds;
+ time_t seconds;
+
+ gint64 div_buf_remainder, div_buf_s, div_buf_ns;
+ struct timespec *ret;
+
+ div_buf_s = (us / 1000000); /* us / 10^6 = s */
+ div_buf_remainder = (us % 1000000); /* fraction of second lost from prev. line */
+ div_buf_ns = div_buf_remainder * 1000; /* us * 10^3 = ns */
+
+ seconds = (time_t) div_buf_s; /* porting note: most systems use 32 bit time, adjust accordingly */
+ nanoseconds = (long) div_buf_ns;
+
+ ret = (struct timespec *) calloc(1, sizeof(struct timespec));
+
+ ret->tv_sec = seconds;
+ ret->tv_nsec = nanoseconds;
+
+ g_ptr_array_add(timedated_freeable, ret);
+
+ return ret;
}