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Add output field to Parse IPv4 Header

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Ted Kruijff 2024-03-13 14:11:35 +01:00
parent bab366e699
commit cdaefe9f6e
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GPG key ID: 638CAF1E28637972
1 changed files with 23 additions and 6 deletions
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19
src/core/operations/ParseIPv4Header.mjs
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@ -33,6 +33,12 @@ class ParseIPv4Header extends Operation {
"name": "Input format", "name": "Input format",
"type": "option", "type": "option",
"value": ["Hex", "Raw"] "value": ["Hex", "Raw"]
},
{
"name": "Output format",
"type": "option",
"value": ["Table", "Data (hex)", "Data (raw)"],
defaultIndex: 0,
} }
]; ];
} }
@ -44,6 +50,8 @@ class ParseIPv4Header extends Operation {
*/ */
run(input, args) { run(input, args) {
const format = args[0]; const format = args[0];
const outputFormat = args[1];
let output; let output;
if (format === "Hex") { if (format === "Hex") {
@ -98,6 +106,9 @@ class ParseIPv4Header extends Operation {
checksumResult = givenChecksum + " (incorrect, should be " + correctChecksum + ")"; checksumResult = givenChecksum + " (incorrect, should be " + correctChecksum + ")";
} }
const data = input.slice(ihl * 4);
if (outputFormat == "Table") {
output = `<table class='table table-hover table-sm table-bordered table-nonfluid'><tr><th>Field</th><th>Value</th></tr> output = `<table class='table table-hover table-sm table-bordered table-nonfluid'><tr><th>Field</th><th>Value</th></tr>
<tr><td>Version</td><td>${version}</td></tr> <tr><td>Version</td><td>${version}</td></tr>
<tr><td>Internet Header Length (IHL)</td><td>${ihl} (${ihl * 4} bytes)</td></tr> <tr><td>Internet Header Length (IHL)</td><td>${ihl} (${ihl * 4} bytes)</td></tr>
@ -116,13 +127,19 @@ class ParseIPv4Header extends Operation {
<tr><td>Protocol</td><td>${protocol}, ${protocolInfo.protocol} (${protocolInfo.keyword})</td></tr> <tr><td>Protocol</td><td>${protocol}, ${protocolInfo.protocol} (${protocolInfo.keyword})</td></tr>
<tr><td>Header checksum</td><td>${checksumResult}</td></tr> <tr><td>Header checksum</td><td>${checksumResult}</td></tr>
<tr><td>Source IP address</td><td>${ipv4ToStr(srcIP)}</td></tr> <tr><td>Source IP address</td><td>${ipv4ToStr(srcIP)}</td></tr>
<tr><td>Destination IP address</td><td>${ipv4ToStr(dstIP)}</td></tr>`; <tr><td>Destination IP address</td><td>${ipv4ToStr(dstIP)}</td></tr>
<tr><td>Data (hex)</td><td>${toHex(data)}</td></tr>`;
if (ihl > 5) { if (ihl > 5) {
output += `<tr><td>Options</td><td>${toHex(options)}</td></tr>`; output += `<tr><td>Options</td><td>${toHex(options)}</td></tr>`;
} }
return output + "</table>"; return output + "</table>";
} else if (outputFormat === "Data (hex)") {
return toHex(data);
} else if (outputFormat == "Data (raw)") {
return Utils.byteArrayToChars(data);
}
} }
} }