drivers: nsos: support IPV6_V6ONLY getsockopt() and setsockopt()

Handle IPV6_V6ONLY option in getsockopt() and setsockopt() APIs.

Signed-off-by: Marcin Niestroj <[email protected]>

Author: mniestroj

drivers/net/nsos_adapt.c

@@ -641,6 +641,13 @@ int nsos_adapt_getsockopt(int fd, int nsos_mid_level, int nsos_mid_optname,
 			return nsos_adapt_getsockopt_int(fd, IPPROTO_TCP, TCP_KEEPCNT,
 							 nsos_mid_optval, nsos_mid_optlen);
 		}
+
+	case NSOS_MID_IPPROTO_IPV6:
+		switch (nsos_mid_optname) {
+		case NSOS_MID_IPV6_V6ONLY:
+			return nsos_adapt_getsockopt_int(fd, IPPROTO_IPV6, IPV6_V6ONLY,
+							 nsos_mid_optval, nsos_mid_optlen);
+		}
 	}
 
 	return -NSOS_MID_EOPNOTSUPP;
@@ -720,6 +727,13 @@ int nsos_adapt_setsockopt(int fd, int nsos_mid_level, int nsos_mid_optname,
 			return nsos_adapt_setsockopt_int(fd, IPPROTO_TCP, TCP_KEEPCNT,
 							 nsos_mid_optval, nsos_mid_optlen);
 		}
+
+	case NSOS_MID_IPPROTO_IPV6:
+		switch (nsos_mid_optname) {
+		case NSOS_MID_IPV6_V6ONLY:
+			return nsos_adapt_setsockopt_int(fd, IPPROTO_IPV6, IPV6_V6ONLY,
+							 nsos_mid_optval, nsos_mid_optlen);
+		}
 	}
 
 	return -NSOS_MID_EOPNOTSUPP;

drivers/net/nsos_socket.h

@@ -103,4 +103,32 @@ struct nsos_mid_timeval {
 
 /** @} */
 
+/**
+ * @name IPv6 level options (NSOS_MID_IPPROTO_IPV6)
+ * @{
+ */
+/* Socket options for NSOS_MID_IPPROTO_IPV6 level */
+/** Set the unicast hop limit for the socket. */
+#define NSOS_MID_IPV6_UNICAST_HOPS	16
+
+/** Set the multicast hop limit for the socket. */
+#define NSOS_MID_IPV6_MULTICAST_HOPS 18
+
+/** Join IPv6 multicast group. */
+#define NSOS_MID_IPV6_ADD_MEMBERSHIP 20
+
+/** Leave IPv6 multicast group. */
+#define NSOS_MID_IPV6_DROP_MEMBERSHIP 21
+
+/** Don't support IPv4 access */
+#define NSOS_MID_IPV6_V6ONLY 26
+
+/** Pass an IPV6_RECVPKTINFO ancillary message that contains a
+ *  in6_pktinfo structure that supplies some information about the
+ *  incoming packet. See RFC 3542.
+ */
+#define NSOS_MID_IPV6_RECVPKTINFO 49
+
+/** @} */
+
 #endif /* __DRIVERS_NET_NSOS_SOCKET_H__ */

drivers/net/nsos_sockets.c

@@ -1044,6 +1044,14 @@ static int nsos_getsockopt(void *obj, int level, int optname,
 						   NSOS_MID_IPPROTO_TCP, NSOS_MID_TCP_KEEPCNT,
 						   optval, optlen);
 		}
+
+	case IPPROTO_IPV6:
+		switch (optname) {
+		case IPV6_V6ONLY:
+			return nsos_getsockopt_int(sock,
+						   NSOS_MID_IPPROTO_IPV6, NSOS_MID_IPV6_V6ONLY,
+						   optval, optlen);
+		}
 	}
 
 	errno = EOPNOTSUPP;
@@ -1173,6 +1181,14 @@ static int nsos_setsockopt(void *obj, int level, int optname,
 						   NSOS_MID_IPPROTO_TCP, NSOS_MID_TCP_KEEPCNT,
 						   optval, optlen);
 		}
+
+	case IPPROTO_IPV6:
+		switch (optname) {
+		case IPV6_V6ONLY:
+			return nsos_setsockopt_int(sock,
+						   NSOS_MID_IPPROTO_IPV6, NSOS_MID_IPV6_V6ONLY,
+						   optval, optlen);
+		}
 	}
 
 	errno = EOPNOTSUPP;