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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 YeichandJasper Wiegratz authored and Simon Kelley committed 2022-07-29 13:01:47 +01:00
1 parent 508d6b4885
commit b5581ed173
3 files changed
+11
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src/rfc2131.c
+9
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@@ -1417,6 +1417,15 @@ size_t dhcp_reply(struct dhcp_context *context, char *iface_name, int int_index,
add_extradata_opt(lease, NULL);
}
if ((opt = option_find(mess, sz, OPTION_MUD_URL_V4, 1)))
{
add_extradata_opt(lease, opt);
}
else
{
add_extradata_opt(lease, NULL);
}
/* DNSMASQ_REQUESTED_OPTIONS */
if ((opt = option_find(mess, sz, OPTION_REQUESTED_OPTIONS, 1)))
{