packer-uwflooding.cc

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//
// Copyright (c) 2013 Regents of the SIGNET lab, University of Padova.
// All rights reserved.
//
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// modification, are permitted provided that the following conditions
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//    notice, this list of conditions and the following disclaimer.
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//    derived from this software without specific prior written permission.
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#include "packer-uwflooding.h"
 
static class PackerUwfloodingClass : public TclClass {
public:
 
    PackerUwfloodingClass() : TclClass("UW/FLOODING/Packer") {
    }
 
    TclObject* create(int, const char*const*) {
        return (new PackerUwFlooding());
    }
} class_module_PackerUwflooding;
 
PackerUwFlooding::PackerUwFlooding() : packer(false) {
    ttl_Bits = 8 * sizeof (uint8_t);
 
    bind("ttl_Bits", (int*) &ttl_Bits);
 
    if (debug_) {
        std::cout << "Initialization (from constructor) of n_bits for the UWFLOODING packer " << std::endl;
    }
 
    n_bits.clear();
 
    n_bits.push_back(ttl_Bits);
}
 
PackerUwFlooding::~PackerUwFlooding() {
 
}
 
void PackerUwFlooding::init() {
 
    if (debug_)
        std::cout << "Re-initialization of n_bits for the UWFLOODING packer " << std::endl;
 
    n_bits.clear();
    n_bits.push_back(ttl_Bits);
}
 
size_t PackerUwFlooding::packMyHdr(Packet* p, unsigned char* buf, size_t offset) {
 
    // Pointer to the UWFLOODING packet header
    hdr_uwflooding* hflooding = HDR_UWFLOODING(p);
 
    int field_idx = 0;
 
    offset += put(buf, offset, &(hflooding->ttl()), n_bits[field_idx++]);
 
    if (debug_) {
        printf("\033[1;37;46m TX UWFLOODING packer hdr \033[0m \n");
        printMyHdrFields(p);
    }
 
    return offset;
}
 
size_t PackerUwFlooding::unpackMyHdr(unsigned char* buf, size_t offset, Packet* p) {
 
    hdr_uwflooding* hflooding = HDR_UWFLOODING(p);
 
    int field_idx = 0;
 
    memset(&(hflooding->ttl()), 0, sizeof (hflooding->ttl()));
    offset += get(buf, offset, &(hflooding->ttl()), n_bits[field_idx++]);
 
    if (debug_) {
        printf("\033[1;37;46m RX UWFLOODING packer hdr \033[0m \n");
        printMyHdrFields(p);
    }
 
    return offset;
}
 
void PackerUwFlooding::printMyHdrMap() {
    std::cout << "\033[1;37;46m" << " Packer Name " << "\033[0m" << " UWFLOODING" << std::endl;
    std::cout << "\033[1;37;46m 1st field " << "\033[0m" << " ttl: " << ttl_Bits << " bits" << std::endl;
    return;
}
 
void PackerUwFlooding::printMyHdrFields(Packet* p) {
    hdr_uwflooding* hflooding = HDR_UWFLOODING(p);
    
    if (n_bits[0] != 0) {
        std::cout << "\033[1;37;46m ttl:\033[0m " << static_cast<uint32_t>(hflooding->ttl()) << " " << hex_bytes(hflooding->ttl(), n_bits[0]) << std::endl;
    }
}