64 lines
1.3 KiB
C++
64 lines
1.3 KiB
C++
#include "packet_def.h"
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#include "packet_layer.h"
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#include "packet_utils.h"
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int packet_get_layer_count(const struct packet *pkt)
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{
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return pkt->layers_used;
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}
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int packet_get_layer_by_idx(const struct packet *pkt, int idx, struct layer *out)
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{
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const struct raw_layer *raw = packet_get_raw_layer(pkt, idx);
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if (raw == NULL)
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{
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return -1;
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}
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else
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{
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layer_convert(raw, out);
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return 0;
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}
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}
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const struct raw_layer *packet_get_raw_layer(const struct packet *pkt, int idx)
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{
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if (idx < 0 || idx >= pkt->layers_used)
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{
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return NULL;
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}
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return &pkt->layers[idx];
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}
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const struct raw_layer *packet_get_innermost_raw_layer(const struct packet *pkt, enum layer_proto proto)
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{
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const struct raw_layer *layer = NULL;
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for (int8_t i = pkt->layers_used - 1; i >= 0; i--)
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{
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layer = &pkt->layers[i];
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if (layer->proto == proto)
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{
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return layer;
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}
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}
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return NULL;
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}
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const struct raw_layer *packet_get_outermost_raw_layer(const struct packet *pkt, enum layer_proto proto)
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{
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const struct raw_layer *layer = NULL;
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for (int8_t i = 0; i < pkt->layers_used; i++)
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{
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layer = &pkt->layers[i];
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if (layer->proto == proto)
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{
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return layer;
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}
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}
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return NULL;
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}
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