feat: added functionallity for TCP stream reassembly

1 files changed, 0 insertions, 54 deletions

diff --git a/analyzer/utils/pcap.c b/analyzer/utils/pcap.c
deleted file mode 100644
index d38cbff..0000000
--- a/analyzer/utils/pcap.c
+++ /dev/null
@@ -1,54 +0,0 @@
-#include "pcap.h"
-
-#include <netinet/if_ether.h>
-#include <netinet/ip.h>
-#include <netinet/tcp.h>
-
-const byte_t *get_payload_from_packet(const byte_t *packet, const struct pcap_pkthdr *packet_data, int *payload_len, uint32_t *tcp_seq) {
-    // get Ethernet header
-    const struct ether_header *eth_header = (const struct ether_header *)packet;
-    int eth_header_len = sizeof(struct ether_header);
-
-    // check if it's IP
-    if (ntohs(eth_header->ether_type) != ETHERTYPE_IP) {
-        *payload_len = -1;
-        return NULL;
-    }
-
-    // get IP header
-    const struct ip *ip_header = (const struct ip *)(packet + eth_header_len);
-    int ip_header_len = ip_header->ip_hl * 4;
-
-    // check if it's TCP
-    if (ip_header->ip_p != IPPROTO_TCP) {
-        *payload_len = -1;
-        return NULL;
-    }
-
-    // get TCP header
-    const struct tcphdr *tcp_header = (const struct tcphdr *)(packet + eth_header_len + ip_header_len);
-    int tcp_header_len = tcp_header->th_off * 4;
-
-    // get TCP sequence number
-    *tcp_seq = ntohl(tcp_header->seq);
-
-    // get payload
-    int total_header_len = eth_header_len + ip_header_len + tcp_header_len;
-    *payload_len = packet_data->caplen - total_header_len;
-    return packet + total_header_len;
-}
-
-PendingPayload new_pending(const byte_t *payload, int payload_len) {
-    PendingPayload tmp;
-    return tmp;
-}
-
-byte_t *free_parsed_data(byte_t *stream, uint32_t stream_seq, int stream_len, int parsed_len) {
-    // TODO: impement
-    return NULL;
-}
-
-int add_segment_to_stream(byte_t *stream, uint32_t stream_seq, int stream_len, const byte_t *payload, uint32_t payload_seq, int payload_len, HashMap *pending) {
-    // TODO: impement
-    return 0;
-}