add osmo_imsi_str_valid() and osmo_msisdn_str_valid()

Add GSM23003_IMSI_MIN_DIGITS definition.
Add regression test gsm23003_test.c to test the two new functions.

Will be used by OsmoHLR to validate VTY and CTRL input.

Change-Id: I1e94f5b0717b947d2a7a7d36bacdf04a75cb3522

2 files changed, 166 insertions, 0 deletions

diff --git a/tests/gsm23003/gsm23003_test.c b/tests/gsm23003/gsm23003_test.c
new file mode 100644
index 00000000..682f1626
--- /dev/null
+++ b/tests/gsm23003/gsm23003_test.c
@@ -0,0 +1,124 @@
+/*
+ * (C) 2017 by sysmocom s.f.m.c. GmbH <info@sysmocom.de>
+ * All Rights Reserved
+ *
+ * Author: Neels Hofmeyr <nhofmeyr@sysmocom.de>
+ *
+ * This program is free software; you can redistribute it and/or modify
+ * it under the terms of the GNU General Public License as published by
+ * the Free Software Foundation; either version 2 of the License, or
+ * (at your option) any later version.
+ *
+ * This program is distributed in the hope that it will be useful,
+ * but WITHOUT ANY WARRANTY; without even the implied warranty of
+ * MERCHANTABILITY or FITNESS FOR A PARTICULAR PURPOSE.  See the
+ * GNU General Public License for more details.
+ *
+ * You should have received a copy of the GNU General Public License along
+ * with this program; if not, write to the Free Software Foundation, Inc.,
+ * 51 Franklin Street, Fifth Floor, Boston, MA 02110-1301 USA.
+ *
+ */
+
+#include <stdio.h>
+
+#include <osmocom/gsm/gsm23003.h>
+#include <osmocom/core/utils.h>
+
+#define BOOL_STR(b) ((b)? "true" : "false")
+
+static struct {
+	const char *imsi;
+	bool expect_ok;
+} test_imsis[] = {
+	{ "", false },
+	{ " ", false },
+	{ "1", false },
+	{ "123", false },
+	{ "12345", false },
+	{ "123456", true },
+	{ "1234567", true },
+	{ "1234567890123", true },
+	{ "123456789012345", true },
+	{ "000000000000000", true },
+	{ "999999999999999", true },
+	{ "1234567890123456", false },
+	{ "a23456789012345", false },
+	{ "1234567b9012345", false },
+	{ "12345678901234c", false },
+	{ "123456789 01234", false },
+	{ "1234567\n123456", false },
+	{ "123456\t123456", false },
+	{ "123456\r123456", false },
+};
+
+bool test_valid_imsi()
+{
+	int i;
+	bool pass = true;
+	bool ok = true;
+	printf("----- %s\n", __func__);
+
+	for (i = 0; i < ARRAY_SIZE(test_imsis); i++) {
+		ok = osmo_imsi_str_valid(test_imsis[i].imsi);
+		pass = pass && (ok == test_imsis[i].expect_ok);
+		printf("%2d: expect=%s result=%s imsi='%s'\n",
+		       i, BOOL_STR(test_imsis[i].expect_ok), BOOL_STR(ok),
+		       test_imsis[i].imsi);
+	}
+	return pass;
+}
+
+static struct {
+	const char *msisdn;
+	bool expect_ok;
+} test_msisdns[] = {
+	{ "", false },
+	{ " ", false },
+	{ "1", true },
+	{ "123", true },
+	{ "12345", true },
+	{ "123456", true },
+	{ "1234567", true },
+	{ "1234567890123", true },
+	{ "123456789012345", true },
+	{ "000000000000000", true },
+	{ "999999999999999", true },
+	{ "1234567890123456", false },
+	{ "a23456789012345", false },
+	{ "1234567b9012345", false },
+	{ "12345678901234c", false },
+	{ "123456789 01234", false },
+	{ "1234567\n123456", false },
+	{ "123456\t123456", false },
+	{ "123456\r123456", false },
+};
+
+bool test_valid_msisdn()
+{
+	int i;
+	bool pass = true;
+	bool ok = true;
+	printf("----- %s\n", __func__);
+
+	for (i = 0; i < ARRAY_SIZE(test_msisdns); i++) {
+		ok = osmo_msisdn_str_valid(test_msisdns[i].msisdn);
+		pass = pass && (ok == test_msisdns[i].expect_ok);
+		printf("%2d: expect=%s result=%s msisdn='%s'\n",
+		       i, BOOL_STR(test_msisdns[i].expect_ok), BOOL_STR(ok),
+		       test_msisdns[i].msisdn);
+	}
+	return pass;
+}
+
+int main(int argc, char **argv)
+{
+	bool pass = true;
+
+	pass = pass && test_valid_imsi();
+	pass = pass && test_valid_msisdn();
+
+	OSMO_ASSERT(pass);
+
+	return EXIT_SUCCESS;
+}
diff --git a/tests/gsm23003/gsm23003_test.ok b/tests/gsm23003/gsm23003_test.ok
new file mode 100644
index 00000000..777451a8
--- /dev/null
+++ b/tests/gsm23003/gsm23003_test.ok
@@ -0,0 +1,42 @@
+----- test_valid_imsi
+ 0: expect=false result=false imsi=''
+ 1: expect=false result=false imsi=' '
+ 2: expect=false result=false imsi='1'
+ 3: expect=false result=false imsi='123'
+ 4: expect=false result=false imsi='12345'
+ 5: expect=true result=true imsi='123456'
+ 6: expect=true result=true imsi='1234567'
+ 7: expect=true result=true imsi='1234567890123'
+ 8: expect=true result=true imsi='123456789012345'
+ 9: expect=true result=true imsi='000000000000000'
+10: expect=true result=true imsi='999999999999999'
+11: expect=false result=false imsi='1234567890123456'
+12: expect=false result=false imsi='a23456789012345'
+13: expect=false result=false imsi='1234567b9012345'
+14: expect=false result=false imsi='12345678901234c'
+15: expect=false result=false imsi='123456789 01234'
+16: expect=false result=false imsi='1234567
+123456'
+17: expect=false result=false imsi='123456	123456'
+18: expect=false result=false imsi='123456
123456'
+----- test_valid_msisdn
+ 0: expect=false result=false msisdn=''
+ 1: expect=false result=false msisdn=' '
+ 2: expect=true result=true msisdn='1'
+ 3: expect=true result=true msisdn='123'
+ 4: expect=true result=true msisdn='12345'
+ 5: expect=true result=true msisdn='123456'
+ 6: expect=true result=true msisdn='1234567'
+ 7: expect=true result=true msisdn='1234567890123'
+ 8: expect=true result=true msisdn='123456789012345'
+ 9: expect=true result=true msisdn='000000000000000'
+10: expect=true result=true msisdn='999999999999999'
+11: expect=false result=false msisdn='1234567890123456'
+12: expect=false result=false msisdn='a23456789012345'
+13: expect=false result=false msisdn='1234567b9012345'
+14: expect=false result=false msisdn='12345678901234c'
+15: expect=false result=false msisdn='123456789 01234'
+16: expect=false result=false msisdn='1234567
+123456'
+17: expect=false result=false msisdn='123456	123456'
+18: expect=false result=false msisdn='123456
123456'