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118 lines
3.4 KiB
118 lines
3.4 KiB
/**
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* Digital Voice Modem - Host Software
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* GPLv2 Open Source. Use is subject to license terms.
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* DO NOT ALTER OR REMOVE COPYRIGHT NOTICES OR THIS FILE HEADER.
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*
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* @package DVM / Host Software
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*
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*/
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//
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// Based on code from the MMDVMHost project. (https://github.com/g4klx/MMDVMHost)
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// Licensed under the GPLv2 License (https://opensource.org/licenses/GPL-2.0)
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//
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/*
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* Copyright (C) 2016 by Simon Rune G7RZU
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* Copyright (C) 2016,2017 by Jonathan Naylor G4KLX
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* Copyright (C) 2017,2019,2022 by Bryan Biedenkapp N2PLL
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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, write to the Free Software
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*/
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#include "Defines.h"
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#include "dmr/acl/AccessControl.h"
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#include "Log.h"
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using namespace dmr::acl;
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#include <algorithm>
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#include <vector>
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#include <cstring>
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// ---------------------------------------------------------------------------
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// Static Class Members
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// ---------------------------------------------------------------------------
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RadioIdLookup* AccessControl::m_ridLookup;
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TalkgroupIdLookup* AccessControl::m_tidLookup;
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/// <summary>
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/// Initializes the DMR access control.
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/// </summary>
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/// <param name="ridLookup">Instance of the RadioIdLookup class.</param>
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/// <param name="tidLookup">Instance of the TalkgroupIdLookup class.</param>
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void AccessControl::init(RadioIdLookup* ridLookup, TalkgroupIdLookup* tidLookup)
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{
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m_ridLookup = ridLookup;
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m_tidLookup = tidLookup;
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}
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/// <summary>
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/// Helper to validate a source radio ID.
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/// </summary>
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/// <param name="id">Source Radio ID.</param>
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/// <returns>True, if source radio ID is valid, otherwise false.</returns>
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bool AccessControl::validateSrcId(uint32_t id)
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{
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// check if RID ACLs are enabled
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if (m_ridLookup->getACL() == false) {
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RadioId rid = m_ridLookup->find(id);
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if (!rid.radioDefault() && !rid.radioEnabled()) {
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return false;
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}
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return true;
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}
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// lookup RID and perform test for validity
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RadioId rid = m_ridLookup->find(id);
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if (!rid.radioEnabled())
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return false;
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return true;
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}
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/// <summary>
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/// Helper to validate a talkgroup ID.
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/// </summary>
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/// <param name="slotNo">DMR slot number.</param>
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/// <param name="id">Talkgroup ID.</param>
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/// <returns>True, if talkgroup ID is valid, otherwise false.</returns>
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bool AccessControl::validateTGId(uint32_t slotNo, uint32_t id)
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{
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// TG0 is never valid
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if (id == 0U)
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return false;
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// check if TID ACLs are enabled
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if (m_tidLookup->getACL() == false) {
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return true;
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}
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// lookup TID and perform test for validity
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TalkgroupId tid = m_tidLookup->find(id);
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if (!tid.tgEnabled())
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return false;
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if (tid.tgSlot() == 0)
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return true; // TG Slot of 0 for the talkgroup entry means both
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if (slotNo != 0) {
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if (tid.tgSlot() != slotNo)
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return false;
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return true;
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} else {
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return true;
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}
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}
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