# HG changeset patch
# User Mychaela Falconia <falcon@freecalypso.org>
# Date 1618983519 0
# Node ID 6041c601304d79762f9b54b1d4aa09dc7f7b616f
# Parent  5560261fc5163b3702312cca269e44101af6c90f
fcsim1-mkprov: revert OTA key addition

It appears that GrcardSIM2 cards (which is what we got for FCSIM1)
do not support OTA after all, contrary to what we were previously
led to believe by some tech support emails from Grcard - apparently
those support emails and OTA descriptions referred to some other
card model(s).

diff -r 5560261fc516 -r 6041c601304d utils/fcsim1-mkprov.c
--- a/utils/fcsim1-mkprov.c	Sun Apr 11 04:55:02 2021 +0000
+++ b/utils/fcsim1-mkprov.c	Wed Apr 21 05:38:39 2021 +0000
@@ -93,23 +93,8 @@
 	set_imsi(argv[optind+1]);
 }
 
-static unsigned
-make_odd_parity(byte)
-	unsigned byte;
-{
-	unsigned mask, p;
-
-	p = 0;
-	for (mask = 0x80; mask; mask >>= 1)
-		if (byte & mask)
-			p = !p;
-	if (!p)
-		byte ^= 0x01;
-	return byte;
-}
-
 static void
-get_random_key(strbuf, oddpar)
+get_random_ki(strbuf)
 	char *strbuf;
 {
 	u_char bin[16];
@@ -122,10 +107,6 @@
 		fprintf(stderr, "error reading from %s\n", random_file);
 		exit(1);
 	}
-	if (oddpar) {
-		for (n = 0; n < 16; n++)
-			bin[n] = make_odd_parity(bin[n]);
-	}
 	dp = strbuf;
 	for (n = 0; n < 16; n++) {
 		sprintf(dp, "%02X", bin[n]);
@@ -139,16 +120,14 @@
 {
 	unsigned acc_mask;
 	char iccid_str[20], imsi_str[16], ki_str[33];
-	char msisdn_str[21], otac_str[33], otad_str[33];
+	char msisdn_str[21];
 
 	nibbles_to_ascii(iccid_bin, 19, iccid_str);
 	nibbles_to_ascii(imsi_bin, 15, imsi_str);
 	acc_mask = 1 << access_class;
-	get_random_key(ki_str, 0);
-	get_random_key(otac_str, 1);
-	get_random_key(otad_str, 1);
-	printf("ICCID=%s IMSI=%s ACC=%04X Ki=%s OTA_C=%s OTA_D=%s", iccid_str,
-		imsi_str, acc_mask, ki_str, otac_str, otad_str);
+	get_random_ki(ki_str);
+	printf("ICCID=%s IMSI=%s ACC=%04X Ki=%s", iccid_str, imsi_str,
+		acc_mask, ki_str);
 	if (msisdn_set) {
 		fputs(" MSISDN=", stdout);
 		if (msisdn_plus)