2022-01-19 20:10:52 +00:00
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/*
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* octoi_srv_vty.c - VTY interface for OCTOI server side
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*
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* (C) 2022 by Harald Welte <laforge@osmocom.org>
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*
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* All Rights Reserved
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*
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* SPDX-License-Identifier: GPL-2.0+
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*
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* This program is free software; you can redistribute it and/or modify
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* it under the terms of the GNU General Public License as published by
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* the Free Software Foundation; either version 2 of the License, or
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* (at your option) any later version.
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*
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* This program is distributed in the hope that it will be useful,
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* but WITHOUT ANY WARRANTY; without even the implied warranty of
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* MERCHANTABILITY or FITNESS FOR A PARTICULAR PURPOSE. See the
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* GNU General Public License for more details.
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*/
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#include <errno.h>
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#include <stdio.h>
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#include <string.h>
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#include <talloc.h>
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#include <osmocom/core/linuxlist.h>
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#include <osmocom/core/sockaddr_str.h>
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#include <osmocom/core/fsm.h>
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#include <osmocom/vty/telnet_interface.h>
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#include <osmocom/vty/command.h>
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#include <osmocom/vty/logging.h>
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#include <osmocom/vty/stats.h>
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#include <osmocom/vty/misc.h>
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#include "octoi.h"
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#include "octoi_sock.h"
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#include "octoi_fsm.h"
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#include "octoi_vty.h"
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/***********************************************************************
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* core data structures
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***********************************************************************/
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const struct value_string octoi_account_mode_name[] = {
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{ ACCOUNT_MODE_NONE, "none" },
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{ ACCOUNT_MODE_ICE1USB, "ice1usb" },
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{ ACCOUNT_MODE_REDIRECT, "redirect" },
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{ ACCOUNT_MODE_DAHDI, "dahdi" },
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{ 0, NULL }
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};
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static struct octoi_account *_account_create(void *ctx, const char *user_id)
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{
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struct octoi_account *ac = talloc_zero(ctx, struct octoi_account);
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if (!ac)
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return NULL;
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ac->user_id = talloc_strdup(ac, user_id);
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if (!ac->user_id) {
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talloc_free(ac);
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return NULL;
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}
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return ac;
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}
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static struct octoi_account *octoi_server_account_create(struct octoi_server *srv, const char *user_id)
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{
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struct octoi_account *ac = _account_create(srv, user_id);
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if (!ac)
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return NULL;
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llist_add_tail(&ac->list, &srv->cfg.accounts);
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return ac;
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}
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struct octoi_account *octoi_client_account_create(struct octoi_client *clnt, const char *user_id)
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{
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struct octoi_account *ac = _account_create(clnt, user_id);
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if (!ac)
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return NULL;
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OSMO_ASSERT(!clnt->cfg.account);
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clnt->cfg.account = ac;
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ac->mode = ACCOUNT_MODE_ICE1USB;
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return ac;
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}
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struct octoi_account *octoi_account_find(struct octoi_server *srv, const char *user_id)
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{
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struct octoi_account *ac;
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llist_for_each_entry(ac, &srv->cfg.accounts, list) {
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if (!strcmp(ac->user_id, user_id))
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return ac;
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}
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return NULL;
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}
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static struct octoi_server *octoi_server_alloc(void *ctx)
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{
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struct octoi_server *srv = talloc_zero(ctx, struct octoi_server);
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if (!srv)
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return NULL;
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INIT_LLIST_HEAD(&srv->cfg.accounts);
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return srv;
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}
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/***********************************************************************
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* VTY
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***********************************************************************/
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static struct cmd_node srv_node = {
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(enum node_type) OCTOI_SRV_NODE,
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"%s(config-octoi-server)# ",
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1,
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};
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static struct cmd_node account_node = {
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(enum node_type) OCTOI_ACCOUNT_NODE,
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"%s(config-octoi-server-account)# ",
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1,
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};
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DEFUN(cfg_server, cfg_server_cmd,
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"octoi-server",
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"Configure the OCTOI server\n")
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{
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struct octoi_server *srv = g_octoi->server;
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if (!srv)
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srv = g_octoi->server = octoi_server_alloc(g_octoi);
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OSMO_ASSERT(srv);
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vty->node = OCTOI_SRV_NODE;
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vty->index = srv;
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return CMD_SUCCESS;
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}
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#if 0
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DEFUN(cfg_no_server, cfg_no_server_cmd,
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"no octoi-server",
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NO_STR "Disable OCTOI server\n")
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{
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/* we'd need to iterate over all accounts and terminate any
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* octoi_server_fsm that might exist for each account */
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}
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#endif
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DEFUN(cfg_srv_local, cfg_srv_local_cmd,
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"local-bind (A.B.C.D|X:X::X:X) <0-65535>",
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"Local OCTOI socket bind address/port\n"
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"Local OCTOI IPv4 Address\n"
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"Local OCTOI IPv6 Address\n"
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"Local OCTOI UDP Port Number\n")
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{
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struct octoi_server *srv = vty->index;
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int rc;
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rc = osmo_sockaddr_str_from_str(&srv->cfg.local, argv[0], atoi(argv[1]));
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if (rc < 0) {
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vty_out(vty, "%% sockaddr Error: %s%s", strerror(errno), VTY_NEWLINE);
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return CMD_WARNING;
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}
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if (srv->sock)
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octoi_sock_destroy(srv->sock);
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srv->sock = octoi_sock_create_server(srv, srv, &srv->cfg.local);
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if (!srv->sock) {
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vty_out(vty, "%% failed to create/bind socket: %s%s", strerror(errno), VTY_NEWLINE);
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return CMD_WARNING;
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}
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srv->sock->rx_cb = octoi_srv_fsm_rx_cb;
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return CMD_SUCCESS;
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}
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DEFUN(cfg_srv_account, cfg_srv_account_cmd,
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"account USER_ID",
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"Configure a local user account\n"
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"User ID\n")
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{
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struct octoi_server *srv = vty->index;
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const char *user_id = argv[0];
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struct octoi_account *ac = octoi_account_find(srv, user_id);
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if (!ac)
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ac = octoi_server_account_create(srv, user_id);
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if (!ac)
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return CMD_WARNING;
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vty->node = OCTOI_ACCOUNT_NODE;
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vty->index = ac;
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return CMD_SUCCESS;
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}
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#if 0
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DEFUN(cfg_srv_no_account, cfg_serv_no_account_cmd,
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"no account USER_ID",
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NO_STR "Remove a local user account\n"
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"User ID\n")
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{
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struct octoi_server *srv = vty->index;
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const char *user_id = argv[0];
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struct octoi_account *ac = octoi_account_find(srv, user_id);
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if (!ac)
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return CMD_WARNING;
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/* we'd need to iterate all octoi_server_fsm instances and terminate any
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* pointing to this account */
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}
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#endif
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gDEFUN(cfg_account_mode, cfg_account_mode_cmd,
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"mode (ice1usb|redirect)",
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"Operational mode of account\n"
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"Connect to local icE1usb (identified by USB serial + line number)\n"
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"Redirect to other IP/Port\n")
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{
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struct octoi_account *acc = vty->index;
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/* leave old mode */
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switch (acc->mode) {
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case ACCOUNT_MODE_ICE1USB:
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talloc_free(acc->u.ice1usb.usb_serial);
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break;
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default:
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break;
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}
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memset(&acc->u, 0, sizeof(acc->u));
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if (!strcmp(argv[0], "ice1usb")) {
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acc->mode = ACCOUNT_MODE_ICE1USB;
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} else if (!strcmp(argv[0], "redirect")) {
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acc->mode = ACCOUNT_MODE_REDIRECT;
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} else
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OSMO_ASSERT(0);
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return CMD_SUCCESS;
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}
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#define ICE1_STR "icE1usb settings\n"
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gDEFUN(cfg_account_ice1_serno, cfg_account_ice1_serno_cmd,
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"ice1usb serial-number SERNO",
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ICE1_STR "USB Serial Number String\n" "USB Serial Number String\n")
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{
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struct octoi_account *acc = vty->index;
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if (acc->mode != ACCOUNT_MODE_ICE1USB) {
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vty_out(vty, "%% Error: Not in icE1usb mode!%s", VTY_NEWLINE);
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return CMD_WARNING;
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}
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osmo_talloc_replace_string(acc, &acc->u.ice1usb.usb_serial, argv[0]);
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return CMD_SUCCESS;
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}
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gDEFUN(cfg_account_ice1_line, cfg_account_ice1_line_cmd,
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"ice1usb line-number <0-1>",
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ICE1_STR "E1 Line number\n" "E1 Line number\n")
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{
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struct octoi_account *acc = vty->index;
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if (acc->mode != ACCOUNT_MODE_ICE1USB) {
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vty_out(vty, "%% Error: Not in icE1usb mode!%s", VTY_NEWLINE);
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return CMD_WARNING;
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}
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acc->u.ice1usb.line_nr = atoi(argv[0]);
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return CMD_SUCCESS;
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}
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DEFUN(cfg_account_redir, cfg_account_redir_cmd,
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"redirect (A.B.C.D|X:X::X:X) <0-65535>",
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"Redirect to other IP/Port\n"
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"Destination IPv4 address\n"
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"Destination IPv6 address\n"
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"Destination UDP port\n")
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{
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struct octoi_account *acc = vty->index;
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int rc;
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if (acc->mode != ACCOUNT_MODE_REDIRECT) {
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vty_out(vty, "%% Error: Not in redirect mode!%s", VTY_NEWLINE);
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return CMD_WARNING;
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}
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rc = osmo_sockaddr_str_from_str(&acc->u.redirect.to, argv[0], atoi(argv[1]));
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if (rc < 0) {
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vty_out(vty, "%% sockaddr Error: %s%s", strerror(errno), VTY_NEWLINE);
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return CMD_WARNING;
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}
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return CMD_SUCCESS;
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}
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void octoi_vty_write_one_account(struct vty *vty, const struct octoi_account *acc)
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{
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if (!acc)
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return;
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vty_out(vty, " account %s%s", acc->user_id, VTY_NEWLINE);
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vty_out(vty, " mode %s%s", get_value_string(octoi_account_mode_name, acc->mode),
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VTY_NEWLINE);
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switch (acc->mode) {
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case ACCOUNT_MODE_NONE:
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break;
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case ACCOUNT_MODE_ICE1USB:
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if (acc->u.ice1usb.usb_serial)
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vty_out(vty, " ice1usb serial-number %s%s", acc->u.ice1usb.usb_serial,
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VTY_NEWLINE);
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vty_out(vty, " ice1usb line-number %u%s", acc->u.ice1usb.line_nr, VTY_NEWLINE);
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break;
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case ACCOUNT_MODE_REDIRECT:
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vty_out(vty, " redirect %s %u%s", acc->u.redirect.to.ip, acc->u.redirect.to.port,
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VTY_NEWLINE);
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break;
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case ACCOUNT_MODE_DAHDI:
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OSMO_ASSERT(0);
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break;
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}
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}
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static int config_write_octoi_srv(struct vty *vty)
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{
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struct octoi_account *acc;
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struct octoi_server *srv = g_octoi->server;
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if (!srv)
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return 0;
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vty_out(vty, "octoi-server%s", VTY_NEWLINE);
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if (strlen(srv->cfg.local.ip)) {
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vty_out(vty, " local-bind %s %u%s", srv->cfg.local.ip, srv->cfg.local.port,
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VTY_NEWLINE);
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}
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llist_for_each_entry(acc, &srv->cfg.accounts, list)
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octoi_vty_write_one_account(vty, acc);
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return 0;
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}
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DEFUN(show_server, show_server_cmd,
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"show octoi-server",
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SHOW_STR "Display information about the OCTOI Server\n")
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{
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struct octoi_server *srv = g_octoi->server;
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2022-04-10 13:39:23 +00:00
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if (!srv) {
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vty_out(vty, "%% No OCTOI server present%s", VTY_NEWLINE);
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return CMD_WARNING;
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}
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vty_show_octoi_sock(vty, srv->sock);
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2022-01-19 20:10:52 +00:00
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return CMD_SUCCESS;
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}
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void octoi_server_vty_init(void)
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{
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install_element_ve(&show_server_cmd);
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install_node(&account_node, NULL);
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install_element(OCTOI_ACCOUNT_NODE, &cfg_account_mode_cmd);
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install_element(OCTOI_ACCOUNT_NODE, &cfg_account_ice1_serno_cmd);
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install_element(OCTOI_ACCOUNT_NODE, &cfg_account_ice1_line_cmd);
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install_element(OCTOI_ACCOUNT_NODE, &cfg_account_redir_cmd);
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install_node(&srv_node, config_write_octoi_srv);
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install_element(CONFIG_NODE, &cfg_server_cmd);
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//install_element(CONFIG_NODE, &cfg_no_server_cmd);
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install_element(OCTOI_SRV_NODE, &cfg_srv_local_cmd);
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install_element(OCTOI_SRV_NODE, &cfg_srv_account_cmd);
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//install_element(CONFIG_SRV_NODE, &cfg_srv_no_account_cmd);
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}
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