gsm23003: add osmo_imei_str_valid()
Verify 14 digit and 15 digit IMEI strings. OsmoHLR will use the 14
digit version to check IMEIs before writing them to the DB.
Place the Luhn checksum code in a dedicated osmo_luhn() function, so
it can be used elsewhere.
Related: OS#2541
Change-Id: Id2d2a3a93b033bafc74c62e15297034bf4aafe61
diff --git a/tests/gsm23003/gsm23003_test.c b/tests/gsm23003/gsm23003_test.c
index 79965cf..eac5a11 100644
--- a/tests/gsm23003/gsm23003_test.c
+++ b/tests/gsm23003/gsm23003_test.c
@@ -118,6 +118,47 @@
return pass;
}
+static struct {
+ bool with_15th_digit;
+ const char *imei;
+ bool expect_ok;
+} test_imeis[] = {
+ /* without 15th digit */
+ {false, "12345678901234", true},
+ {false, "1234567890123", false},
+ {false, "123456789012345", false},
+
+ /* with 15th digit: valid */
+ {true, "357613004448485", true},
+ {true, "357805023984447", true},
+ {true, "352936001349777", true},
+ {true, "357663017768551", true},
+
+ /* with 15th digit: invalid */
+ {true, "357613004448480", false},
+ {true, "357613004448405", false},
+ {true, "357613004448085", false},
+
+ { NULL, false, false },
+};
+
+bool test_valid_imei()
+{
+ int i;
+ bool pass = true;
+ bool ok = true;
+ printf("----- %s\n", __func__);
+
+ for (i = 0; i < ARRAY_SIZE(test_imeis); i++) {
+ ok = osmo_imei_str_valid(test_imeis[i].imei, test_imeis[i].with_15th_digit);
+ pass = pass && (ok == test_imeis[i].expect_ok);
+ printf("%2d: expect=%s result=%s imei='%s' with_15th_digit=%s\n",
+ i, BOOL_STR(test_imeis[i].expect_ok), BOOL_STR(ok),
+ test_imeis[i].imei, test_imeis[i].with_15th_digit ? "true" : "false");
+ }
+ return pass;
+}
+
struct test_mnc_from_str_result {
int rc;
uint16_t mnc;
@@ -248,6 +289,7 @@
pass = pass && test_valid_imsi();
pass = pass && test_valid_msisdn();
+ pass = pass && test_valid_imei();
pass = pass && test_mnc_from_str();
pass = pass && test_gummei_name();
pass = pass && test_domain_gen();