1 files changed, 70 insertions, 0 deletions
diff --git a/src/libsystemd-network/test-dhcp6-client.c b/src/libsystemd-network/test-dhcp6-client.c
index b2dc8ba0c5..b52f40792b 100644
--- a/src/libsystemd-network/test-dhcp6-client.c
+++ b/src/libsystemd-network/test-dhcp6-client.c
@@ -28,6 +28,7 @@
 
 #include "sd-dhcp6-client.h"
 #include "dhcp6-protocol.h"
+#include "dhcp6-internal.h"
 
 static struct ether_addr mac_addr = {
         .ether_addr_octet = {'A', 'B', 'C', '1', '2', '3'}
@@ -61,6 +62,72 @@ static int test_client_basic(sd_event *e) {
         return 0;
 }
 
+static int test_option(sd_event *e) {
+        uint8_t packet[] = {
+                'F', 'O', 'O',
+                0x00, DHCP6_OPTION_ORO, 0x00, 0x07,
+                'A', 'B', 'C', 'D', 'E', 'F', 'G',
+                0x00, DHCP6_OPTION_VENDOR_CLASS, 0x00, 0x09,
+                '1', '2', '3', '4', '5', '6', '7', '8', '9',
+                'B', 'A', 'R',
+        };
+        uint8_t result[] = {
+                'F', 'O', 'O',
+                0x00, 0x00, 0x00, 0x00, 0x00, 0x00, 0x00, 0x00,
+                0x00, 0x00, 0x00, 0x00, 0x00, 0x00, 0x00, 0x00,
+                0x00, 0x00, 0x00, 0x00, 0x00, 0x00, 0x00, 0x00,
+                'B', 'A', 'R',
+        };
+        uint16_t optcode;
+        size_t optlen;
+        uint8_t *optval, *buf, *out;
+        size_t zero = 0, pos = 3;
+        size_t buflen = sizeof(packet), outlen = sizeof(result);
+
+        if (verbose)
+                printf("* %s\n", __FUNCTION__);
+
+        assert_se(buflen == outlen);
+
+        assert_se(dhcp6_option_parse(&buf, &zero, &optcode, &optlen,
+                                     &optval) == -ENOMSG);
+
+        buflen -= 3;
+        buf = &packet[3];
+        outlen -= 3;
+        out = &result[3];
+
+        assert_se(dhcp6_option_parse(&buf, &buflen, &optcode, &optlen,
+                                     &optval) >= 0);
+        pos += 4 + optlen;
+        assert_se(buf == &packet[pos]);
+        assert_se(optcode == DHCP6_OPTION_ORO);
+        assert_se(optlen == 7);
+        assert_se(buflen + pos == sizeof(packet));
+
+        assert_se(dhcp6_option_append(&out, &outlen, optcode, optlen,
+                                      optval) >= 0);
+        assert_se(out == &result[pos]);
+        assert_se(*out == 0x00);
+
+        assert_se(dhcp6_option_parse(&buf, &buflen, &optcode, &optlen,
+                                     &optval) >= 0);
+        pos += 4 + optlen;
+        assert_se(buf == &packet[pos]);
+        assert_se(optcode == DHCP6_OPTION_VENDOR_CLASS);
+        assert_se(optlen == 9);
+        assert_se(buflen + pos == sizeof(packet));
+
+        assert_se(dhcp6_option_append(&out, &outlen, optcode, optlen,
+                                      optval) >= 0);
+        assert_se(out == &result[pos]);
+        assert_se(*out == 'B');
+
+        assert_se(memcmp(packet, result, sizeof(packet)) == 0);
+
+        return 0;
+}
+
 int main(int argc, char *argv[]) {
         _cleanup_event_unref_ sd_event *e;
 
@@ -71,6 +138,9 @@ int main(int argc, char *argv[]) {
         log_open();
 
         test_client_basic(e);
+        test_option(e);
+
+        assert_se(!sd_event_unref(e));
 
         return 0;
 }