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- /* $Id: dlt_plugins.h 1841 2007-04-26 03:43:14Z aturner $ */
- /*
- * Copyright (c) 2006-2007 Aaron Turner.
- * All rights reserved.
- *
- * Redistribution and use in source and binary forms, with or without
- * modification, are permitted provided that the following conditions
- * are met:
- *
- * 1. Redistributions of source code must retain the above copyright
- * notice, this list of conditions and the following disclaimer.
- * 2. Redistributions in binary form must reproduce the above copyright
- * notice, this list of conditions and the following disclaimer in the
- * documentation and/or other materials provided with the distribution.
- * 3. Neither the names of the copyright owners nor the names of its
- * contributors may be used to endorse or promote products derived from
- * this software without specific prior written permission.
- *
- * THIS SOFTWARE IS PROVIDED ``AS IS'' AND ANY EXPRESS OR IMPLIED
- * WARRANTIES, INCLUDING, BUT NOT LIMITED TO, THE IMPLIED WARRANTIES OF
- * MERCHANTABILITY AND FITNESS FOR A PARTICULAR PURPOSE ARE DISCLAIMED.
- * IN NO EVENT SHALL THE AUTHORS OR COPYRIGHT HOLDERS BE LIABLE FOR ANY
- * DIRECT, INDIRECT, INCIDENTAL, SPECIAL, EXEMPLARY, OR CONSEQUENTIAL
- * DAMAGES (INCLUDING, BUT NOT LIMITED TO, PROCUREMENT OF SUBSTITUTE
- * GOODS OR SERVICES; LOSS OF USE, DATA, OR PROFITS; OR BUSINESS
- * INTERRUPTION) HOWEVER CAUSED AND ON ANY THEORY OF LIABILITY, WHETHER
- * IN CONTRACT, STRICT LIABILITY, OR TORT (INCLUDING NEGLIGENCE OR
- * OTHERWISE) ARISING IN ANY WAY OUT OF THE USE OF THIS SOFTWARE, EVEN IF
- * ADVISED OF THE POSSIBILITY OF SUCH DAMAGE.
- */
- /*
- * Main DLT Plugin Header. You should only include this file outside
- * of the plugin API. dlt_plugin-int.h is used internal to the plugin ONLY.
- */
- #include "tcpedit.h"
- #ifndef _DLT_PLUGINS_H_
- #define _DLT_PLUGINS_H_
- /* forward declare our context, so we can use it in the plugin struct */
- typedef struct tcpeditdlt_s tcpeditdlt_t;
- /*
- * initialize the DLT plugin backend, and return a new context var.
- * call this once per pcap to be processed
- */
- tcpeditdlt_t *tcpedit_dlt_init(tcpedit_t *tcpedit, int srcdlt);
- /* cleans up after ourselves. Called for each initalized plugin */
- void tcpedit_dlt_cleanup(tcpeditdlt_t *ctx);
- /* What is the output DLT type? */
- int tcpedit_dlt_output_dlt(tcpeditdlt_t *ctx);
- int tcpedit_dlt_l2len(tcpeditdlt_t *ctx, int dlt, const u_char *packet, const int pktlen);
- /*
- * process the given packet, by calling decode & encode
- */
- int tcpedit_dlt_process(tcpeditdlt_t *ctx, u_char *packet, int pktlen, tcpr_dir_t direction);
- /*
- * or you can call them sperately if you want
- */
- int tcpedit_dlt_decode(tcpeditdlt_t *ctx, const u_char *packet, const int pktlen);
- int tcpedit_dlt_encode(tcpeditdlt_t* ctx, u_char **packet, int pktlen, tcpr_dir_t direction);
- /*
- * After processing each packet, you can get info about L2/L3
- */
- int tcpedit_dlt_proto(tcpeditdlt_t *ctx, int dlt, const u_char *packet, const int pktlen);
- u_char *tcpedit_dlt_l3data(tcpeditdlt_t *ctx, int dlt, u_char *packet, const int pktlen);
- /* merge the L2 & L3 (possibly changed?) after calling tcpedit_dlt_l3data() */
- u_char *tcpedit_dlt_merge_l3data(tcpeditdlt_t *ctx, int dlt, u_char *packet, const int pktlen, u_char *l3data);
- int tcpedit_dlt_src(tcpeditdlt_t *ctx);
- int tcpedit_dlt_dst(tcpeditdlt_t *ctx);
- #endif
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