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Pass MUD URLs (RFC 8520) supplied via DHCPv4 to DHCP scripts

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Extract Manufacturer Usage Description (MUD) URL from DHCP Option 161
and make it available to DHCP scripts as DNSMASQ_MUD_URL.

See https://datatracker.ietf.org/doc/html/rfc8520#section-17.3
and https://datatracker.ietf.org/doc/html/rfc8520#section-10

Co-authored-by: Jasper Wiegratz <wiegratz@uni-bremen.de>
This commit is contained in:
Kevin Yeich
2022-07-09 19:46:36 +00:00
committed by Simon Kelley
parent 508d6b4885
commit b5581ed173
3 changed files with 11 additions and 0 deletions
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src/helper.c
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@@ -633,6 +633,7 @@ int create_helper(int event_fd, int err_fd, uid_t uid, gid_t gid, long max_fd)
buf = grab_extradata(buf, end, "DNSMASQ_CIRCUIT_ID", &err);
buf = grab_extradata(buf, end, "DNSMASQ_SUBSCRIBER_ID", &err);
buf = grab_extradata(buf, end, "DNSMASQ_REMOTE_ID", &err);
buf = grab_extradata(buf, end, "DNSMASQ_MUD_URL", &err);
buf = grab_extradata(buf, end, "DNSMASQ_REQUESTED_OPTIONS", &err);
}