Function memif_socket_create

dpdk/drivers/net/memif/memif_socket.c:891–986

}

static struct memif_socket *
memif_socket_create(char *key, uint8_t listener, bool is_abstract, uid_t owner_uid, gid_t owner_gid)
{
	struct memif_socket *sock;
	struct sockaddr_un un = { 0 };
	uint32_t sunlen;
	int sockfd;
	int ret;
	int on = 1;

	sock = rte_zmalloc("memif-socket", sizeof(struct memif_socket), 0);
	if (sock == NULL) {
		MIF_LOG(ERR, "Failed to allocate memory for memif socket");
		return NULL;
	}

	sock->listener = listener;
	strlcpy(sock->filename, key, MEMIF_SOCKET_UN_SIZE);
	TAILQ_INIT(&sock->dev_queue);

	if (listener != 0) {
		sockfd = socket(AF_UNIX, SOCK_SEQPACKET, 0);
		if (sockfd < 0)
			goto error;

		un.sun_family = AF_UNIX;
		if (is_abstract) {
			/* abstract address */
			un.sun_path[0] = '\0';
			strlcpy(un.sun_path + 1, sock->filename, MEMIF_SOCKET_UN_SIZE - 1);
			sunlen = RTE_MIN(1 + strlen(sock->filename),
					 MEMIF_SOCKET_UN_SIZE) +
				 sizeof(un) - sizeof(un.sun_path);
		} else {
			sunlen = sizeof(un);
			strlcpy(un.sun_path, sock->filename, MEMIF_SOCKET_UN_SIZE);
		}

		ret = setsockopt(sockfd, SOL_SOCKET, SO_PASSCRED, &on,
				 sizeof(on));
		if (ret < 0)
			goto error;

		ret = bind(sockfd, (struct sockaddr *)&un, sunlen);
		if (ret < 0)
			goto error;

		ret = listen(sockfd, 1);
		if (ret < 0)
			goto error;

		MIF_LOG(DEBUG, "Memif listener socket %s created.", sock->filename);

		if (!is_abstract && (owner_uid != (uid_t)-1 || owner_gid != (gid_t)-1)) {
			ret = chown(sock->filename, owner_uid, owner_gid);
			if (ret < 0) {
				MIF_LOG(ERR, "Failed to change listener socket owner");
				goto error;