Beispiel #1
0
static void
ilbd_free_cli(ilbd_client_t *cli)
{
	(void) close(cli->cli_sd);
	if (cli->cli_cmd == ILBD_SHOW_NAT)
		ilbd_show_nat_cleanup();
	if (cli->cli_cmd == ILBD_SHOW_PERSIST)
		ilbd_show_sticky_cleanup();
	if (cli->cli_saved_reply != NULL)
		free(cli->cli_saved_reply);
	free(cli->cli_pw_buf);
	free(cli);
}
Beispiel #2
0
/*
 * To show the kernel sticky table.
 *
 * cli: the client pointer making the request.
 * req_si: information about the show-persist request.
 * rbuf: reply buffer to be filled in.
 * rbufsz: reply buffer size.
 */
ilb_status_t
ilbd_show_sticky(void *cli, const ilb_comm_t *ic, uint32_t *rbuf,
    size_t *rbufsz)
{
	ilb_show_info_t *req_si = (ilb_show_info_t *)&ic->ic_data;
	ilb_list_sticky_cmd_t *kcmd;
	boolean_t start;
	size_t tmp_rbufsz, kbufsz;
	uint32_t max_num;
	ilb_status_t ret;
	int i;
	ilb_show_info_t *reply;
	ilb_persist_info_t *st_ret;

	/* For new client request, start from the beginning of the table. */
	if (sticky_cur_cli == NULL) {
		sticky_cur_cli = cli;
		start = B_TRUE;
	} else if (cli == sticky_cur_cli) {
		/*
		 * Another request from client.  If the client does not
		 * want to continue, reset the current client and reply OK.
		 */
		if (ic->ic_flags & ILB_COMM_END) {
			ilbd_show_sticky_cleanup();
			ilbd_reply_ok(rbuf, rbufsz);
			return (ILB_STATUS_OK);
		}
		start = B_FALSE;
	} else {
		/* A request is on-going, so reject a new client. */
		return (ILB_STATUS_INPROGRESS);
	}

	tmp_rbufsz = *rbufsz;
	ilbd_reply_ok(rbuf, rbufsz);
	reply = (ilb_show_info_t *)&((ilb_comm_t *)rbuf)->ic_data;

	/*
	 * Calculate the max number of ilb_persist_info_t can be fitted in the
	 * reply.
	 */
	*rbufsz += sizeof (ilb_show_info_t *);
	tmp_rbufsz -= *rbufsz;
	max_num = tmp_rbufsz / sizeof (ilb_persist_info_t);

	/*
	 * Calculate the exact number of entries we should request from kernel.
	 */
	max_num = min(req_si->sn_num, min(NUM_ENTRIES, max_num));

	kbufsz = max_num * sizeof (ilb_sticky_entry_t) +
	    offsetof(ilb_list_sticky_cmd_t, entries);
	if ((kcmd = malloc(kbufsz)) == NULL) {
		logdebug("ilbd_show_nat: malloc(cmd)");
		ilbd_reply_err(rbuf, rbufsz, ILB_STATUS_ENOMEM);
		return (ILB_STATUS_ENOMEM);
	}

	kcmd->cmd = ILB_LIST_STICKY_TABLE;
	kcmd->flags = start ? ILB_LIST_BEGIN : ILB_LIST_CONT;
	kcmd->num_sticky = max_num;
	if ((ret = do_ioctl(kcmd, kbufsz)) != ILB_STATUS_OK) {
		logperror("ilbd_show_nat: ioctl(ILB_LIST_STICKY_TABLE)");
		ilbd_reply_err(rbuf, rbufsz, ret);
		free(kcmd);
		return (ret);
	}

	reply->sn_num = kcmd->num_sticky;
	*rbufsz += reply->sn_num * sizeof (ilb_persist_info_t);

	if (kcmd->flags & ILB_LIST_END) {
		sticky_cur_cli = NULL;
	} else {
		/*
		 * ilbd_reply_ok() sets ic_flags to ILB_COMM_END by default.
		 * Need to clear it here.
		 */
		((ilb_comm_t *)rbuf)->ic_flags = 0;
	}

	st_ret = (ilb_persist_info_t *)&reply->sn_data;

	for (i = 0; i < kcmd->num_sticky; i++) {
		ilb_sticky_entry_t *st;

		st = &kcmd->entries[i];

		(void) strlcpy(st_ret->persist_rule_name, st->rule_name,
		    ILB_NAMESZ);
		st_ret->persist_req_addr = st->req_addr;
		st_ret->persist_srv_addr = st->srv_addr;
		st_ret++;
	}

end:
	free(kcmd);
	return (ret);
}