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91 lines
2.5 KiB
91 lines
2.5 KiB
/**
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* (C) 2007-22 - ntop.org and contributors
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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 see see <http://www.gnu.org/licenses/>
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*
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*/
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#include "n2n.h"
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static int transop_deinit_null (n2n_trans_op_t *arg ) {
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// nothing to deallocate, nothing to release
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return 0;
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}
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static int transop_encode_null (n2n_trans_op_t *arg,
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uint8_t *outbuf,
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size_t out_len,
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const uint8_t *inbuf,
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size_t in_len,
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const uint8_t *peer_mac) {
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int retval = -1;
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traceEvent(TRACE_DEBUG, "encode_null %lu", in_len);
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if(out_len >= in_len) {
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memcpy(outbuf, inbuf, in_len);
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retval = in_len;
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} else {
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traceEvent(TRACE_DEBUG, "encode_null %lu too big for packet buffer", in_len);
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}
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return retval;
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}
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static int transop_decode_null (n2n_trans_op_t *arg,
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uint8_t *outbuf,
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size_t out_len,
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const uint8_t *inbuf,
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size_t in_len,
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const uint8_t *peer_mac) {
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int retval = -1;
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traceEvent(TRACE_DEBUG, "decode_null %lu", in_len);
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if(out_len >= in_len) {
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memcpy(outbuf, inbuf, in_len);
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retval = in_len;
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} else {
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traceEvent(TRACE_DEBUG, "decode_null %lu too big for packet buffer", in_len);
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}
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return retval;
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}
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static void transop_tick_null (n2n_trans_op_t *arg, time_t now) {
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// no tick action
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}
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int n2n_transop_null_init (const n2n_edge_conf_t *conf, n2n_trans_op_t *ttt) {
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memset(ttt, 0, sizeof(n2n_trans_op_t));
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ttt->transform_id = N2N_TRANSFORM_ID_NULL;
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ttt->no_encryption = 1;
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ttt->deinit = transop_deinit_null;
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ttt->tick = transop_tick_null;
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ttt->fwd = transop_encode_null;
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ttt->rev = transop_decode_null;
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return 0;
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}
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