mirror of
https://github.com/ntop/ntopng.git
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64 lines
1.6 KiB
C++
64 lines
1.6 KiB
C++
/*
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*
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* (C) 2013-20 - ntop.org
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*
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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 3 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 Foundation,
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* Inc., 59 Temple Place - Suite 330, Boston, MA 02111-1307, USA.
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*
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*/
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#include "ntop_includes.h"
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/* ************************************ */
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MacHash::MacHash(NetworkInterface *_iface, u_int _num_hashes, u_int _max_hash_size) :
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GenericHash(_iface, _num_hashes, _max_hash_size, "MacHash") {
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;
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}
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/* ************************************ */
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Mac* MacHash::get(const u_int8_t mac[6], bool is_inline_call) {
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if(mac == NULL)
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return(NULL);
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else {
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u_int32_t hash = Utils::macHash((u_int8_t*)mac);
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hash %= num_hashes;
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if(table[hash] == NULL) {
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return(NULL);
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} else {
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Mac *head;
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if(!is_inline_call)
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locks[hash]->rdlock(__FILE__, __LINE__);
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head = (Mac*)table[hash];
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while(head != NULL) {
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if((!head->idle()) && head->equal(mac))
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break;
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else
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head = (Mac*)head->next();
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}
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if(!is_inline_call)
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locks[hash]->unlock(__FILE__, __LINE__);
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return(head);
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}
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}
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}
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