Enable user access to pinephone hardware kernel interface through openrc script, remove setuid 0 requirement

Makefile

@@ -36,6 +36,8 @@ install: $(PROGRAMS)
 	cd configs && find . -type f -exec install -D -m 0644 "{}" "$(DESTDIR)$(PREFIX)/share/sxmo/{}" \; && cd ..
 
 	# Configs
+	install -D -m 0755 -t $(DESTDIR)/etc/init.d configs/openrc/sxmo-pinephone
+
 	install -D -m 0644 -t $(DESTDIR)/etc/alsa/conf.d/ configs/alsa/alsa_sxmo_enable_dmix.conf
 
 	install -D -m 0644 -t $(DESTDIR)/etc/polkit-1/rules.d/ configs/polkit/*.rules
@@ -51,11 +53,12 @@ install: $(PROGRAMS)
 	# Bin
 	install -D -t $(DESTDIR)$(PREFIX)/bin scripts/*/*
 
-	install -D -o root -m 4755 programs/sxmo_setpineled $(DESTDIR)$(PREFIX)/bin/
+	install -D -m 0755 programs/sxmo_setpineled $(DESTDIR)$(PREFIX)/bin/
 
-	install -D -o root -m 4755 programs/sxmo_setpinebacklight $(DESTDIR)$(PREFIX)/bin/
+	install -D -m 0755 programs/sxmo_setpinebacklight $(DESTDIR)$(PREFIX)/bin/
 
-	install -D -o root -m 4755 programs/sxmo_screenlock $(DESTDIR)$(PREFIX)/bin/
+	install -D -m 0755 programs/sxmo_screenlock $(DESTDIR)$(PREFIX)/bin/
 
 	install -D programs/sxmo_megiaudioroute $(DESTDIR)$(PREFIX)/bin/
 	install -D programs/sxmo_vibratepine $(DESTDIR)$(PREFIX)/bin/
+

configs/openrc/sxmo-pinephone

@@ -0,0 +1,6 @@
+#!/sbin/openrc-run
+
+description="Enable user access to pinephone hardware kernel interface"
+
+command="chmod"
+command_args="a+rw /sys/module/8723cs/parameters/rtw_scan_interval_thr /sys/devices/platform/backlight/backlight/backlight/brightness /sys/power/state /sys/devices/platform/soc/1f00000.rtc/power/wakeup /sys/power/mem_sleep /sys/bus/usb/drivers/usb/unbind /sys/bus/usb/drivers/usb/bind /sys/class/leds/red:indicator/brightness /sys/class/leds/blue:indicator/brightness /sys/class/leds/green:indicator/brightness /sys/class/leds/white:flash/brightness /dev/rtc0"

programs/sxmo_screenlock.c

@@ -431,7 +431,7 @@ writefile(char *filepath, char *str)
 }
 
 void usage() {
-	fprintf(stderr, "Usage: sxmo_screenlock [--screen-off] [--suspend] [--wake-interval n]\n");
+	fprintf(stderr, "Usage: sxmo_screenlock [--screen-off] [--suspend] [--wake-interval n] [--setuid]\n");
 }
 
 
@@ -474,14 +474,15 @@ main(int argc, char **argv) {
 			target = StateSuspend;
 		} else if(!strcmp(argv[i], "--wake-interval")) {
 			wakeinterval = (time_t) atoi(argv[++i]);
+		} else if(!strcmp(argv[i], "--setuid")) {
+			if (setuid(0))
+				die("setuid(0) failed\n");
 		} else {
 			fprintf(stderr, "Invalid argument: %s\n", argv[i]);
 			return 2;
 		}
 	}
 
-	if (setuid(0))
-		die("setuid(0) failed\n");
 	if (!(dpy = XOpenDisplay(NULL)))
 		die("Cannot open display\n");
 

programs/sxmo_setpinebacklight.c

@@ -28,11 +28,6 @@ int main(int argc, char *argv[]) {
 	argc--;
 	brightness = atoi(argv[argc--]);
 
-	if (setuid(0)) {
-		fprintf(stderr, "setuid(0) failed\n");
-		return 1;
-	}
-
 	if (access(pbpScreen, F_OK) != -1) {
 		writeFile(pbpScreen, brightness);
 		fprintf(stderr, "Set PBP brightness to %d\n", brightness);

programs/sxmo_setpineled.c

@@ -48,9 +48,5 @@ int main(int argc, char *argv[]) {
 		"sh -c 'echo %d > /sys/class/leds/%s:%s/brightness'",
 		brightness, color, type
 	);
-	if (setuid(0)) {
-		fprintf(stderr, "setuid(0) failed\n");
-	} else {
-		return system(command);
-	}
+	return system(command);
 }