mirror of https://gerrit.osmocom.org/libosmocore
834 lines
20 KiB
C
834 lines
20 KiB
C
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/*! \file gprs_ns2_vty.c
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* VTY interface for our GPRS Networks Service (NS) implementation. */
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/* (C) 2009-2014 by Harald Welte <laforge@gnumonks.org>
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* (C) 2016-2017 by sysmocom - s.f.m.c. GmbH
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* (C) 2020 by sysmocom - s.f.m.c. GmbH <info@sysmocom.de>
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* Author: Alexander Couzens <lynxis@fe80.eu>
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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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* You should have received a copy of the GNU General Public License
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* along with this program. If not, see <http://www.gnu.org/licenses/>.
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*
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*/
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#include <stdlib.h>
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#include <unistd.h>
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#include <errno.h>
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#include <stdint.h>
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#include <arpa/inet.h>
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#include <osmocom/core/msgb.h>
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#include <osmocom/core/byteswap.h>
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#include <osmocom/core/talloc.h>
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#include <osmocom/core/select.h>
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#include <osmocom/core/rate_ctr.h>
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#include <osmocom/core/socket.h>
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#include <osmocom/core/sockaddr_str.h>
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#include <osmocom/core/linuxlist.h>
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#include <osmocom/core/socket.h>
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#include <osmocom/gprs/gprs_ns2.h>
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#include <osmocom/gsm/tlv.h>
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#include <osmocom/vty/vty.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/telnet_interface.h>
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#include <osmocom/vty/misc.h>
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#include "gprs_ns2_internal.h"
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struct ns2_vty_priv {
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/* global listen */
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struct osmo_sockaddr_str udp;
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struct osmo_sockaddr_str frgreaddr;
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int dscp;
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enum gprs_ns2_vc_mode vc_mode;
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/* force vc mode if another configuration forces
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* the vc mode. E.g. SNS configuration */
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bool force_vc_mode;
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char *force_vc_mode_reason;
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bool frgre;
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struct llist_head vtyvc;
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};
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struct ns2_vty_vc {
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struct llist_head list;
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struct osmo_sockaddr_str remote;
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enum gprs_ns_ll ll;
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/* old vty code doesnt support multiple NSVCI per NSEI */
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uint16_t nsei;
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uint16_t nsvci;
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uint16_t frdlci;
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bool remote_end_is_sgsn;
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bool configured;
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};
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static struct gprs_ns2_inst *vty_nsi = NULL;
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static struct ns2_vty_priv priv;
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/* FIXME: this should go to some common file as it is copied
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* in vty_interface.c of the BSC */
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static const struct value_string gprs_ns_timer_strs[] = {
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{ 0, "tns-block" },
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{ 1, "tns-block-retries" },
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{ 2, "tns-reset" },
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{ 3, "tns-reset-retries" },
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{ 4, "tns-test" },
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{ 5, "tns-alive" },
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{ 6, "tns-alive-retries" },
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{ 7, "tsns-prov" },
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{ 0, NULL }
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};
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static void log_set_nsvc_filter(struct log_target *target,
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struct gprs_ns2_vc *nsvc)
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{
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if (nsvc) {
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target->filter_map |= (1 << LOG_FLT_GB_NSVC);
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target->filter_data[LOG_FLT_GB_NSVC] = nsvc;
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} else if (target->filter_data[LOG_FLT_GB_NSVC]) {
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target->filter_map = ~(1 << LOG_FLT_GB_NSVC);
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target->filter_data[LOG_FLT_GB_NSVC] = NULL;
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}
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}
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static struct cmd_node ns_node = {
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L_NS_NODE,
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"%s(config-ns)# ",
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1,
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};
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static struct ns2_vty_vc *vtyvc_alloc(uint16_t nsei) {
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struct ns2_vty_vc *vtyvc = talloc_zero(vty_nsi, struct ns2_vty_vc);
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if (!vtyvc)
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return vtyvc;
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vtyvc->nsei = nsei;
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llist_add(&vtyvc->list, &priv.vtyvc);
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return vtyvc;
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}
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static void ns2_vc_free(struct ns2_vty_vc *vtyvc) {
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if (!vtyvc)
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return;
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llist_del(&vtyvc->list);
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talloc_free(vtyvc);
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}
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static struct ns2_vty_vc *vtyvc_by_nsei(uint16_t nsei, bool alloc_missing) {
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struct ns2_vty_vc *vtyvc;
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llist_for_each_entry(vtyvc, &priv.vtyvc, list) {
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if (vtyvc->nsei == nsei)
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return vtyvc;
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}
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if (alloc_missing) {
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vtyvc = vtyvc_alloc(nsei);
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if (!vtyvc)
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return vtyvc;
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vtyvc->nsei = nsei;
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}
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return NULL;
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}
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static int config_write_ns(struct vty *vty)
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{
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struct ns2_vty_vc *vtyvc;
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unsigned int i;
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struct osmo_sockaddr_str sockstr;
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vty_out(vty, "ns%s", VTY_NEWLINE);
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/* global configuration must be written first, as some of it may be
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* relevant when creating the NSE/NSVC later below */
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vty_out(vty, " encapsulation framerelay-gre enabled %u%s",
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priv.frgre ? 1 : 0, VTY_NEWLINE);
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if (priv.frgre) {
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if (strlen(priv.frgreaddr.ip)) {
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vty_out(vty, " encapsulation framerelay-gre local-ip %s%s",
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sockstr.ip, VTY_NEWLINE);
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}
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} else {
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if (strlen(priv.udp.ip)) {
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vty_out(vty, " encapsulation udp local-ip %s%s",
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priv.udp.ip, VTY_NEWLINE);
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}
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if (priv.udp.port)
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vty_out(vty, " encapsulation udp local-port %u%s",
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priv.udp.port, VTY_NEWLINE);
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}
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if (priv.dscp)
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vty_out(vty, " encapsulation udp dscp %d%s",
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priv.dscp, VTY_NEWLINE);
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vty_out(vty, " encapsulation udp use-reset-block-unblock %s%s",
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priv.vc_mode == NS2_VC_MODE_BLOCKRESET ? "enabled" : "disabled", VTY_NEWLINE);
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llist_for_each_entry(vtyvc, &priv.vtyvc, list) {
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vty_out(vty, " nse %u nsvci %u%s",
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vtyvc->nsei, vtyvc->nsvci, VTY_NEWLINE);
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vty_out(vty, " nse %u remote-role %s%s",
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vtyvc->nsei, vtyvc->remote_end_is_sgsn ? "sgsn" : "bss",
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VTY_NEWLINE);
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switch (vtyvc->ll) {
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case GPRS_NS_LL_UDP:
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vty_out(vty, " nse %u encapsulation udp%s", vtyvc->nsei, VTY_NEWLINE);
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vty_out(vty, " nse %u remote-ip %s%s",
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vtyvc->nsei,
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vtyvc->remote.ip,
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VTY_NEWLINE);
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vty_out(vty, " nse %u remote-port %u%s",
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vtyvc->nsei, vtyvc->remote.port,
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VTY_NEWLINE);
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break;
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case GPRS_NS_LL_FR_GRE:
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vty_out(vty, " nse %u encapsulation framerelay-gre%s",
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vtyvc->nsei, VTY_NEWLINE);
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vty_out(vty, " nse %u remote-ip %s%s",
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vtyvc->nsei,
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vtyvc->remote.ip,
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VTY_NEWLINE);
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vty_out(vty, " nse %u fr-dlci %u%s",
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vtyvc->nsei, vtyvc->frdlci,
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VTY_NEWLINE);
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break;
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default:
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break;
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}
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}
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for (i = 0; i < ARRAY_SIZE(vty_nsi->timeout); i++)
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vty_out(vty, " timer %s %u%s",
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get_value_string(gprs_ns_timer_strs, i),
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vty_nsi->timeout[i], VTY_NEWLINE);
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return CMD_SUCCESS;
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}
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DEFUN(cfg_ns, cfg_ns_cmd,
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"ns",
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"Configure the GPRS Network Service")
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{
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vty->node = L_NS_NODE;
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return CMD_SUCCESS;
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}
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static void dump_nsvc(struct vty *vty, struct gprs_ns2_vc *nsvc, bool stats)
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{
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struct osmo_sockaddr_str remote;
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struct osmo_sockaddr_str local;
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struct osmo_sockaddr *sockaddr;
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switch (nsvc->ll) {
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case GPRS_NS_LL_UDP: {
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sockaddr = gprs_ns2_ip_vc_sockaddr(nsvc);
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if (!sockaddr) {
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vty_out(vty, "unknown");
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break;
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}
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if (osmo_sockaddr_str_from_sockaddr(
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&remote,
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&sockaddr->u.sas)) {
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vty_out(vty, "unknown");
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break;
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}
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vty_out(vty, "%s:%u <> %s:%u", local.ip, local.port, remote.ip, remote.port);
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break;
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}
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case GPRS_NS_LL_FR_GRE:
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/* TODO: implement dump_nse for FR GRE */
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case GPRS_NS_LL_E1:
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/* TODO: implement dump_nse for E1 */
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break;
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}
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vty_out(vty, "Remote: %s ",
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gprs_ns2_ll_str(nsvc));
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vty_out(vty, "%s%s", nsvc->ll == GPRS_NS_LL_UDP ? "UDP" : "FR-GRE", VTY_NEWLINE);
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if (stats) {
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vty_out_rate_ctr_group(vty, " ", nsvc->ctrg);
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vty_out_stat_item_group(vty, " ", nsvc->statg);
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}
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}
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static void dump_nse(struct vty *vty, const struct gprs_ns2_nse *nse, bool stats, bool persistent_only)
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{
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struct gprs_ns2_vc *nsvc;
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vty_out(vty, "NSEI %5u%s",
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nse->nsei, VTY_NEWLINE);
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gprs_ns2_sns_dump_vty(vty, nse, stats);
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llist_for_each_entry(nsvc, &nse->nsvc, list) {
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if (persistent_only) {
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if (nsvc->persistent)
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dump_nsvc(vty, nsvc, stats);
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} else {
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dump_nsvc(vty, nsvc, stats);
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}
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}
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}
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static void dump_ns(struct vty *vty, const struct gprs_ns2_inst *nsi, bool stats, bool persistent_only)
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{
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struct gprs_ns2_nse *nse;
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llist_for_each_entry(nse, &nsi->nse, list) {
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dump_nse(vty, nse, stats, persistent_only);
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break;
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}
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}
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DEFUN(show_ns, show_ns_cmd, "show ns",
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SHOW_STR "Display information about the NS protocol")
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{
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dump_ns(vty, vty_nsi, false, false);
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return CMD_SUCCESS;
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}
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DEFUN(show_ns_stats, show_ns_stats_cmd, "show ns stats",
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SHOW_STR
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"Display information about the NS protocol\n"
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"Include statistics\n")
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{
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dump_ns(vty, vty_nsi, true, false);
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return CMD_SUCCESS;
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}
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DEFUN(show_ns_pers, show_ns_pers_cmd, "show ns persistent",
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SHOW_STR
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"Display information about the NS protocol\n"
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"Show only persistent NS\n")
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{
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dump_ns(vty, vty_nsi, true, true);
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return CMD_SUCCESS;
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}
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DEFUN(show_nse, show_nse_cmd, "show ns (nsei|nsvc) <0-65535> [stats]",
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SHOW_STR "Display information about the NS protocol\n"
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"Select one NSE by its NSE Identifier\n"
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"Select one NSE by its NS-VC Identifier\n"
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"The Identifier of selected type\n"
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"Include Statistics\n")
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{
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struct gprs_ns2_inst *nsi = vty_nsi;
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struct gprs_ns2_nse *nse;
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struct gprs_ns2_vc *nsvc;
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uint16_t id = atoi(argv[1]);
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||
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bool show_stats = false;
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if (argc >= 3)
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show_stats = true;
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||
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if (!strcmp(argv[0], "nsei")) {
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nse = gprs_ns2_nse_by_nsei(nsi, id);
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if (!nse) {
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return CMD_WARNING;
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}
|
||
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dump_nse(vty, nse, show_stats, false);
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} else {
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||
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nsvc = gprs_ns2_nsvc_by_nsvci(nsi, id);
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|
if (!nsvc) {
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vty_out(vty, "No such NS Entity%s", VTY_NEWLINE);
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return CMD_WARNING;
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||
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}
|
||
|
|
||
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dump_nsvc(vty, nsvc, show_stats);
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||
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}
|
||
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|
||
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return CMD_SUCCESS;
|
||
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}
|
||
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|
||
|
#define NSE_CMD_STR "Persistent NS Entity\n" "NS Entity ID (NSEI)\n"
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||
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|
||
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DEFUN(cfg_nse_nsvc, cfg_nse_nsvci_cmd,
|
||
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"nse <0-65535> nsvci <0-65535>",
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NSE_CMD_STR
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||
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"NS Virtual Connection\n"
|
||
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"NS Virtual Connection ID (NSVCI)\n"
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||
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)
|
||
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{
|
||
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struct ns2_vty_vc *vtyvc;
|
||
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|
||
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uint16_t nsei = atoi(argv[0]);
|
||
|
uint16_t nsvci = atoi(argv[1]);
|
||
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|
||
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vtyvc = vtyvc_by_nsei(nsei, true);
|
||
|
if (!vtyvc) {
|
||
|
vty_out(vty, "Can not allocate space %s", VTY_NEWLINE);
|
||
|
return CMD_WARNING;
|
||
|
}
|
||
|
|
||
|
vtyvc->nsvci = nsvci;
|
||
|
|
||
|
return CMD_SUCCESS;
|
||
|
}
|
||
|
|
||
|
DEFUN(cfg_nse_remoteip, cfg_nse_remoteip_cmd,
|
||
|
"nse <0-65535> remote-ip " VTY_IPV46_CMD,
|
||
|
NSE_CMD_STR
|
||
|
"Remote IP Address\n"
|
||
|
"Remote IP Address\n")
|
||
|
{
|
||
|
uint16_t nsei = atoi(argv[0]);
|
||
|
struct ns2_vty_vc *vtyvc;
|
||
|
|
||
|
vtyvc = vtyvc_by_nsei(nsei, true);
|
||
|
if (!vtyvc) {
|
||
|
vty_out(vty, "Can not allocate space %s", VTY_NEWLINE);
|
||
|
return CMD_WARNING;
|
||
|
}
|
||
|
|
||
|
osmo_sockaddr_str_from_str2(&vtyvc->remote, argv[1]);
|
||
|
|
||
|
return CMD_SUCCESS;
|
||
|
}
|
||
|
|
||
|
DEFUN(cfg_nse_remoteport, cfg_nse_remoteport_cmd,
|
||
|
"nse <0-65535> remote-port <0-65535>",
|
||
|
NSE_CMD_STR
|
||
|
"Remote UDP Port\n"
|
||
|
"Remote UDP Port Number\n")
|
||
|
{
|
||
|
uint16_t nsei = atoi(argv[0]);
|
||
|
uint16_t port = atoi(argv[1]);
|
||
|
struct ns2_vty_vc *vtyvc;
|
||
|
|
||
|
vtyvc = vtyvc_by_nsei(nsei, true);
|
||
|
if (!vtyvc) {
|
||
|
vty_out(vty, "Can not allocate space %s", VTY_NEWLINE);
|
||
|
return CMD_WARNING;
|
||
|
}
|
||
|
|
||
|
vtyvc->remote.port = port;
|
||
|
|
||
|
return CMD_SUCCESS;
|
||
|
}
|
||
|
|
||
|
DEFUN(cfg_nse_fr_dlci, cfg_nse_fr_dlci_cmd,
|
||
|
"nse <0-65535> fr-dlci <16-1007>",
|
||
|
NSE_CMD_STR
|
||
|
"Frame Relay DLCI\n"
|
||
|
"Frame Relay DLCI Number\n")
|
||
|
{
|
||
|
uint16_t nsei = atoi(argv[0]);
|
||
|
uint16_t dlci = atoi(argv[1]);
|
||
|
struct ns2_vty_vc *vtyvc;
|
||
|
|
||
|
vtyvc = vtyvc_by_nsei(nsei, true);
|
||
|
if (!vtyvc) {
|
||
|
vty_out(vty, "Can not allocate space %s", VTY_NEWLINE);
|
||
|
return CMD_WARNING;
|
||
|
}
|
||
|
|
||
|
if (vtyvc->ll != GPRS_NS_LL_FR_GRE) {
|
||
|
vty_out(vty, "Warning: seting FR DLCI on non-FR NSE%s",
|
||
|
VTY_NEWLINE);
|
||
|
}
|
||
|
|
||
|
vtyvc->frdlci = dlci;
|
||
|
|
||
|
return CMD_SUCCESS;
|
||
|
}
|
||
|
|
||
|
DEFUN(cfg_nse_encaps, cfg_nse_encaps_cmd,
|
||
|
"nse <0-65535> encapsulation (udp|framerelay-gre)",
|
||
|
NSE_CMD_STR
|
||
|
"Encapsulation for NS\n"
|
||
|
"UDP/IP Encapsulation\n" "Frame-Relay/GRE/IP Encapsulation\n")
|
||
|
{
|
||
|
uint16_t nsei = atoi(argv[0]);
|
||
|
struct ns2_vty_vc *vtyvc;
|
||
|
|
||
|
vtyvc = vtyvc_by_nsei(nsei, true);
|
||
|
if (!vtyvc) {
|
||
|
vty_out(vty, "Can not allocate space %s", VTY_NEWLINE);
|
||
|
return CMD_WARNING;
|
||
|
}
|
||
|
|
||
|
if (!strcmp(argv[1], "udp"))
|
||
|
vtyvc->ll = GPRS_NS_LL_UDP;
|
||
|
else
|
||
|
vtyvc->ll = GPRS_NS_LL_FR_GRE;
|
||
|
|
||
|
return CMD_SUCCESS;
|
||
|
}
|
||
|
|
||
|
DEFUN(cfg_nse_remoterole, cfg_nse_remoterole_cmd,
|
||
|
"nse <0-65535> remote-role (sgsn|bss)",
|
||
|
NSE_CMD_STR
|
||
|
"Remote NSE Role\n"
|
||
|
"Remote Peer is SGSN\n"
|
||
|
"Remote Peer is BSS\n")
|
||
|
{
|
||
|
uint16_t nsei = atoi(argv[0]);
|
||
|
struct ns2_vty_vc *vtyvc;
|
||
|
|
||
|
vtyvc = vtyvc_by_nsei(nsei, true);
|
||
|
if (!vtyvc) {
|
||
|
vty_out(vty, "Can not allocate space %s", VTY_NEWLINE);
|
||
|
return CMD_WARNING;
|
||
|
}
|
||
|
|
||
|
if (!strcmp(argv[1], "sgsn"))
|
||
|
vtyvc->remote_end_is_sgsn = 1;
|
||
|
else
|
||
|
vtyvc->remote_end_is_sgsn = 0;
|
||
|
|
||
|
return CMD_SUCCESS;
|
||
|
}
|
||
|
|
||
|
DEFUN(cfg_no_nse, cfg_no_nse_cmd,
|
||
|
"no nse <0-65535>",
|
||
|
"Delete Persistent NS Entity\n"
|
||
|
"Delete " NSE_CMD_STR)
|
||
|
{
|
||
|
uint16_t nsei = atoi(argv[0]);
|
||
|
struct ns2_vty_vc *vtyvc;
|
||
|
|
||
|
vtyvc = vtyvc_by_nsei(nsei, false);
|
||
|
if (!vtyvc) {
|
||
|
vty_out(vty, "The NSE %d does not exists.%s", nsei, VTY_NEWLINE);
|
||
|
return CMD_WARNING;
|
||
|
}
|
||
|
|
||
|
ns2_vc_free(vtyvc);
|
||
|
|
||
|
return CMD_SUCCESS;
|
||
|
}
|
||
|
|
||
|
DEFUN(cfg_ns_timer, cfg_ns_timer_cmd,
|
||
|
"timer " NS_TIMERS " <0-65535>",
|
||
|
"Network Service Timer\n"
|
||
|
NS_TIMERS_HELP "Timer Value\n")
|
||
|
{
|
||
|
int idx = get_string_value(gprs_ns_timer_strs, argv[0]);
|
||
|
int val = atoi(argv[1]);
|
||
|
|
||
|
if (idx < 0 || idx >= ARRAY_SIZE(vty_nsi->timeout))
|
||
|
return CMD_WARNING;
|
||
|
|
||
|
vty_nsi->timeout[idx] = val;
|
||
|
|
||
|
return CMD_SUCCESS;
|
||
|
}
|
||
|
|
||
|
#define ENCAPS_STR "NS encapsulation options\n"
|
||
|
|
||
|
DEFUN(cfg_nsip_local_ip, cfg_nsip_local_ip_cmd,
|
||
|
"encapsulation udp local-ip " VTY_IPV46_CMD,
|
||
|
ENCAPS_STR "NS over UDP Encapsulation\n"
|
||
|
"Set the IP address on which we listen for NS/UDP\n"
|
||
|
"IP Address\n")
|
||
|
{
|
||
|
osmo_sockaddr_str_from_str2(&priv.udp, argv[0]);
|
||
|
|
||
|
return CMD_SUCCESS;
|
||
|
}
|
||
|
|
||
|
DEFUN(cfg_nsip_local_port, cfg_nsip_local_port_cmd,
|
||
|
"encapsulation udp local-port <0-65535>",
|
||
|
ENCAPS_STR "NS over UDP Encapsulation\n"
|
||
|
"Set the UDP port on which we listen for NS/UDP\n"
|
||
|
"UDP port number\n")
|
||
|
{
|
||
|
unsigned int port = atoi(argv[0]);
|
||
|
|
||
|
priv.udp.port = port;
|
||
|
|
||
|
return CMD_SUCCESS;
|
||
|
}
|
||
|
|
||
|
DEFUN(cfg_nsip_dscp, cfg_nsip_dscp_cmd,
|
||
|
"encapsulation udp dscp <0-255>",
|
||
|
ENCAPS_STR "NS over UDP Encapsulation\n"
|
||
|
"Set DSCP/TOS on the UDP socket\n" "DSCP Value\n")
|
||
|
{
|
||
|
int dscp = atoi(argv[0]);
|
||
|
struct gprs_ns2_vc_bind *bind;
|
||
|
|
||
|
priv.dscp = dscp;
|
||
|
|
||
|
llist_for_each_entry(bind, &vty_nsi->binding, list) {
|
||
|
if (gprs_ns2_is_ip_bind(bind))
|
||
|
gprs_ns2_ip_bind_set_dscp(bind, dscp);
|
||
|
}
|
||
|
|
||
|
return CMD_SUCCESS;
|
||
|
}
|
||
|
|
||
|
DEFUN(cfg_nsip_res_block_unblock, cfg_nsip_res_block_unblock_cmd,
|
||
|
"encapsulation udp use-reset-block-unblock (enabled|disabled)",
|
||
|
ENCAPS_STR "NS over UDP Encapsulation\n"
|
||
|
"Use NS-{RESET,BLOCK,UNBLOCK} procedures in violation of 3GPP TS 48.016\n"
|
||
|
"Enable NS-{RESET,BLOCK,UNBLOCK}\n"
|
||
|
"Disable NS-{RESET,BLOCK,UNBLOCK}\n")
|
||
|
{
|
||
|
enum gprs_ns2_vc_mode vc_mode;
|
||
|
struct gprs_ns2_vc_bind *bind;
|
||
|
|
||
|
if (!strcmp(argv[0], "enabled"))
|
||
|
vc_mode = NS2_VC_MODE_BLOCKRESET;
|
||
|
else
|
||
|
vc_mode = NS2_VC_MODE_ALIVE;
|
||
|
|
||
|
if (priv.force_vc_mode) {
|
||
|
if (priv.vc_mode != vc_mode)
|
||
|
{
|
||
|
vty_out(vty, "Ignoring use-reset-block because it's already set by %s.%s",
|
||
|
priv.force_vc_mode_reason, VTY_NEWLINE);
|
||
|
return CMD_WARNING;
|
||
|
}
|
||
|
|
||
|
return CMD_SUCCESS;
|
||
|
}
|
||
|
|
||
|
priv.vc_mode = vc_mode;
|
||
|
|
||
|
llist_for_each_entry(bind, &vty_nsi->binding, list) {
|
||
|
gprs_ns2_bind_set_mode(bind, priv.vc_mode);
|
||
|
}
|
||
|
|
||
|
return CMD_SUCCESS;
|
||
|
}
|
||
|
|
||
|
DEFUN(cfg_frgre_local_ip, cfg_frgre_local_ip_cmd,
|
||
|
"encapsulation framerelay-gre local-ip " VTY_IPV46_CMD,
|
||
|
ENCAPS_STR "NS over Frame Relay over GRE Encapsulation\n"
|
||
|
"Set the IP address on which we listen for NS/FR/GRE\n"
|
||
|
"IP Address\n")
|
||
|
{
|
||
|
osmo_sockaddr_str_from_str2(&priv.frgreaddr, argv[0]);
|
||
|
|
||
|
return CMD_SUCCESS;
|
||
|
}
|
||
|
|
||
|
DEFUN(cfg_frgre_enable, cfg_frgre_enable_cmd,
|
||
|
"encapsulation framerelay-gre enabled (1|0)",
|
||
|
ENCAPS_STR "NS over Frame Relay over GRE Encapsulation\n"
|
||
|
"Enable or disable Frame Relay over GRE\n"
|
||
|
"Enable\n" "Disable\n")
|
||
|
{
|
||
|
int enabled = atoi(argv[0]);
|
||
|
|
||
|
priv.frgre = enabled;
|
||
|
|
||
|
return CMD_SUCCESS;
|
||
|
}
|
||
|
|
||
|
/* TODO: allow vty to reset/block/unblock nsvc/nsei */
|
||
|
|
||
|
/* TODO: add filter for NSEI as ns1 code does */
|
||
|
/* TODO: add filter for single connection by description */
|
||
|
DEFUN(logging_fltr_nsvc,
|
||
|
logging_fltr_nsvc_cmd,
|
||
|
"logging filter nsvc nsvci <0-65535>",
|
||
|
LOGGING_STR FILTER_STR
|
||
|
"Filter based on NS Virtual Connection\n"
|
||
|
"Identify NS-VC by NSVCI\n"
|
||
|
"Numeric identifier\n")
|
||
|
{
|
||
|
struct log_target *tgt;
|
||
|
struct gprs_ns2_vc *nsvc;
|
||
|
uint16_t id = atoi(argv[1]);
|
||
|
|
||
|
log_tgt_mutex_lock();
|
||
|
tgt = osmo_log_vty2tgt(vty);
|
||
|
if (!tgt) {
|
||
|
log_tgt_mutex_unlock();
|
||
|
return CMD_WARNING;
|
||
|
}
|
||
|
|
||
|
nsvc = gprs_ns2_nsvc_by_nsvci(vty_nsi, id);
|
||
|
if (!nsvc) {
|
||
|
vty_out(vty, "No NS-VC by that identifier%s", VTY_NEWLINE);
|
||
|
log_tgt_mutex_unlock();
|
||
|
return CMD_WARNING;
|
||
|
}
|
||
|
|
||
|
log_set_nsvc_filter(tgt, nsvc);
|
||
|
log_tgt_mutex_unlock();
|
||
|
return CMD_SUCCESS;
|
||
|
}
|
||
|
|
||
|
int gprs_ns2_vty_init(struct gprs_ns2_inst *nsi)
|
||
|
{
|
||
|
static bool vty_elements_installed = false;
|
||
|
|
||
|
vty_nsi = nsi;
|
||
|
memset(&priv, 0, sizeof(struct ns2_vty_priv));
|
||
|
INIT_LLIST_HEAD(&priv.vtyvc);
|
||
|
priv.vc_mode = NS2_VC_MODE_BLOCKRESET;
|
||
|
|
||
|
/* Regression test code may call this function repeatedly, so make sure
|
||
|
* that VTY elements are not duplicated, which would assert. */
|
||
|
if (vty_elements_installed)
|
||
|
return 0;
|
||
|
vty_elements_installed = true;
|
||
|
|
||
|
install_element_ve(&show_ns_cmd);
|
||
|
install_element_ve(&show_ns_stats_cmd);
|
||
|
install_element_ve(&show_ns_pers_cmd);
|
||
|
install_element_ve(&show_nse_cmd);
|
||
|
install_element_ve(&logging_fltr_nsvc_cmd);
|
||
|
|
||
|
install_element(CFG_LOG_NODE, &logging_fltr_nsvc_cmd);
|
||
|
|
||
|
install_element(CONFIG_NODE, &cfg_ns_cmd);
|
||
|
install_node(&ns_node, config_write_ns);
|
||
|
install_element(L_NS_NODE, &cfg_nse_nsvci_cmd);
|
||
|
install_element(L_NS_NODE, &cfg_nse_remoteip_cmd);
|
||
|
install_element(L_NS_NODE, &cfg_nse_remoteport_cmd);
|
||
|
install_element(L_NS_NODE, &cfg_nse_fr_dlci_cmd);
|
||
|
install_element(L_NS_NODE, &cfg_nse_encaps_cmd);
|
||
|
install_element(L_NS_NODE, &cfg_nse_remoterole_cmd);
|
||
|
install_element(L_NS_NODE, &cfg_no_nse_cmd);
|
||
|
install_element(L_NS_NODE, &cfg_ns_timer_cmd);
|
||
|
install_element(L_NS_NODE, &cfg_nsip_local_ip_cmd);
|
||
|
install_element(L_NS_NODE, &cfg_nsip_local_port_cmd);
|
||
|
install_element(L_NS_NODE, &cfg_nsip_dscp_cmd);
|
||
|
install_element(L_NS_NODE, &cfg_nsip_res_block_unblock_cmd);
|
||
|
install_element(L_NS_NODE, &cfg_frgre_enable_cmd);
|
||
|
install_element(L_NS_NODE, &cfg_frgre_local_ip_cmd);
|
||
|
|
||
|
/* TODO: nsvc/nsei command to reset states or reset/block/unblock nsei/nsvcs */
|
||
|
|
||
|
return 0;
|
||
|
}
|
||
|
|
||
|
/*!
|
||
|
* \brief gprs_ns2_vty_create parse the vty tree into ns nodes
|
||
|
* It has to be in different steps to ensure the bind is created before creating VCs.
|
||
|
* \return 0 on success
|
||
|
*/
|
||
|
int gprs_ns2_vty_create() {
|
||
|
struct ns2_vty_vc *vtyvc;
|
||
|
struct gprs_ns2_vc_bind *bind;
|
||
|
struct gprs_ns2_nse *nse;
|
||
|
struct gprs_ns2_vc *nsvc;
|
||
|
struct osmo_sockaddr sockaddr;
|
||
|
|
||
|
if (!vty_nsi)
|
||
|
return -1;
|
||
|
|
||
|
/* create binds, only support a single bind. either FR or UDP */
|
||
|
if (priv.frgre) {
|
||
|
/* TODO not yet supported !*/
|
||
|
return -1;
|
||
|
} else {
|
||
|
/* UDP */
|
||
|
osmo_sockaddr_str_to_sockaddr(&priv.udp, &sockaddr.u.sas);
|
||
|
gprs_ns2_ip_bind(vty_nsi, &sockaddr, priv.dscp, &bind);
|
||
|
if (!bind) {
|
||
|
/* TODO: could not bind on the specific address */
|
||
|
return -1;
|
||
|
}
|
||
|
gprs_ns2_bind_set_mode(bind, priv.vc_mode);
|
||
|
}
|
||
|
|
||
|
/* create vcs */
|
||
|
llist_for_each_entry(vtyvc, &priv.vtyvc, list) {
|
||
|
if (strlen(vtyvc->remote.ip) == 0) {
|
||
|
/* Invalid IP for VC */
|
||
|
continue;
|
||
|
}
|
||
|
|
||
|
if (!vtyvc->remote.port) {
|
||
|
/* Invalid port for VC */
|
||
|
continue;
|
||
|
}
|
||
|
|
||
|
if (osmo_sockaddr_str_to_sockaddr(&vtyvc->remote, &sockaddr.u.sas)) {
|
||
|
/* Invalid sockaddr for VC */
|
||
|
continue;
|
||
|
}
|
||
|
|
||
|
nse = gprs_ns2_nse_by_nsei(vty_nsi, vtyvc->nsei);
|
||
|
if (!nse) {
|
||
|
nse = gprs_ns2_create_nse(vty_nsi, vtyvc->nsei);
|
||
|
if (!nse) {
|
||
|
/* Could not create NSE for VTY */
|
||
|
continue;
|
||
|
}
|
||
|
}
|
||
|
nse->persistent = true;
|
||
|
|
||
|
if (bind) {
|
||
|
nsvc = gprs_ns2_ip_connect(bind,
|
||
|
&sockaddr,
|
||
|
nse,
|
||
|
vtyvc->nsvci);
|
||
|
if (!nsvc) {
|
||
|
/* Could not create NSVC, connect failed */
|
||
|
continue;
|
||
|
}
|
||
|
nsvc->persistent = true;
|
||
|
}
|
||
|
}
|
||
|
|
||
|
|
||
|
return 0;
|
||
|
}
|
||
|
|
||
|
/*!
|
||
|
* \brief ns2_vty_bind_apply will be called when a new bind is created to apply vty settings
|
||
|
* \param bind
|
||
|
* \return
|
||
|
*/
|
||
|
void ns2_vty_bind_apply(struct gprs_ns2_vc_bind *bind)
|
||
|
{
|
||
|
gprs_ns2_bind_set_mode(bind, priv.vc_mode);
|
||
|
}
|
||
|
|
||
|
/*!
|
||
|
* \brief ns2_vty_force_vc_mode force a mode and prevents the vty from overwriting it.
|
||
|
* \param force if true mode and reason will be set. false to allow modification via vty.
|
||
|
* \param mode
|
||
|
* \param reason A description shown to the user when a vty command wants to change the mode.
|
||
|
*/
|
||
|
void gprs_ns2_vty_force_vc_mode(bool force, enum gprs_ns2_vc_mode mode, char *reason)
|
||
|
{
|
||
|
priv.force_vc_mode = force;
|
||
|
|
||
|
if (force) {
|
||
|
priv.vc_mode = mode;
|
||
|
priv.force_vc_mode_reason = reason;
|
||
|
}
|
||
|
}
|