[Kea-users] Parsing Option 82

[Itay Rozenberg]

Greetings


Type 001 – circuit_id - hex, you need to convert it to ascii. (try it on this web site: http://www.rapidtables.com/convert/number/hex-to-ascii.htm )
Type 002 – remote_id - Mac address
Each of them can be hex or mac address.

Try this:
std::string hexToAscii(std::string c) {
        int length = c.length();
        std::string newString;
        for (int i = 0; i < length; i+=2) {
                std::string byte = c.substr(i, 2);
                char chr = (char)(int)strtol(byte.c_str(), NULL, 16);
                newString.push_back(chr);
        }
        return newString;
}



OptionPtr rai = query4_ptr->getOption(DHO_DHCP_AGENT_OPTIONS);
        if (rai) {
                OptionPtr circuit_id_opt = rai->getOption(RAI_OPTION_AGENT_CIRCUIT_ID);
                if (circuit_id_opt) {
                        string cid = hexToAscii(circuit_id_opt->toHexString().substr(2));
                }
        }

For the other one (remote_id) use getOption(RAI_OPTION_AGENT_CIRCUIT_ID).

itay

From: Kea-users [mailto:kea-users-bounces at lists.isc.org] On Behalf Of Gokulakrishnan Gopalakrishnan
Sent: Tuesday, July 4, 2017 2:20 PM
To: kea-users at lists.isc.org<mailto:kea-users at lists.isc.org>
Subject: [Kea-users] Parsing Option 82

I'm trying to print and parse Option 82 but I couldn't understand the format in which it is received. My 'option->toText()' print this
type=082, len=024:,
options:
  type=001, len=014: 01:0c:45:74:68:65:72:6e:65:74:31:2f:32:39
  type=002, len=006: 04:62:73:56:13:bc

Can someone help me to understand this value?

Thanks,
Gokul

[Banner]<https://www.partner.co.il/partnertvfa>
Powered by U‑BTech XTRABANNER<http://www.u-btech.com/products/xtrabanner/poweredby>

Please do not enrich emails sent to me<mailto:XBanner at Orange.co.il?subject=Please%20do%20not%20enrich%20emails%20sent%20to%20me%20%5BRemoval%20Code%3A%20DNE420000%5D&body=Please%20do%20not%20enrich%20emails%20sent%20to%20me>

------------------------------------------------------------
This message contains information that may be confidential or privileged.
If you are not the intended recipient, you may not use, copy or disclose
to anyone any of the information in this message. If you have received
this message and are not the intended recipient, kindly notify the sender
and delete this message from your computer.
-------------- next part --------------
An HTML attachment was scrubbed...
URL: <https://lists.isc.org/pipermail/kea-users/attachments/20170704/bf86f31a/attachment.htm>
-------------- next part --------------
A non-text attachment was scrubbed...
Name: Banner1-e839.jpg
Type: image/jpeg
Size: 25948 bytes
Desc: Banner1-e839.jpg
URL: <https://lists.isc.org/pipermail/kea-users/attachments/20170704/bf86f31a/attachment.jpg>