Add nasl functions for dumping icmp packets

[ArnoStiefvater]

What:

Add nasl functions for dumping icmp packets.

Why:

TCP/IP/UDP ... already allow dumping of packets.

How:

ICMPv4
sudo openvas-nasl -i /plugins/folder -X -B -d -t example.com icmp.nasl

if(description) {
  script_oid("1.2.3");
  exit(0);
}

include("dump.inc");
ownip = this_host();
targetip = get_host_ip();

ip_packet = forge_ip_packet(ip_hl:  5,
                            ip_v:   4,
                            ip_tos: 0,
                            ip_id:  rand(),
                            ip_off: IP_DF,
                            ip_ttl: 64,
                            ip_p:   IPPROTO_TCP,
                            ip_sum: 0,
                            ip_src: ownip,
                            ip_dst: targetip);

imcp_packet = forge_icmp_packet(
  ip: ip_packet,
  data: "test data"
);

display("Crafted IP packet:");
dump_ip_packet(ip_packet);

display("Crafted ICMP packet:");
dump_icmp_packet(imcp_packet);

ICMPv6
sudo openvas-nasl -i /plugins/folder -X -B -d -t ::1 icmpv6.nasl

if(description) {
  script_oid("1.2.3");
  exit(0);
}

include("dump.inc");

ownip = this_host();
targetip = get_host_ip();

ip6_packet = forge_ipv6_packet( ip6_v:IP6_v,
                                ip6_p:IP6_P,
                                ip6_plen:20,
                                ip6_hlim:IP6_HLIM,
                                ip6_src:myhost,
                                ip6_dst:get_host_ip() );

icmp = forge_icmp_v6_packet( ip6:ip6_packet,
                              icmp_type:128,
                              icmp_code:0,
                              icmp_seq:0,
                              icmp_id:ICMP_ID,
                              icmp_cksum:-1,
                              data:"some test data" );

display("Crafted IP packet:");
dump_ipv6_packet(ip6_packet);

display("Crafted ICMP packet:");
dump_icmp_v6_packet(icmp);

Checklist:

• Tests
• CHANGELOG Entry