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Fix removal of DHCP_CLIENT_MAC options from DHCPv6 relay replies.

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This commit is contained in:
Simon Kelley
2019-01-10 21:58:18 +00:00
parent 4bf62f616b
commit f8c77edbdf
1 changed files with 17 additions and 13 deletions
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6
src/rfc3315.c
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@@ -219,6 +219,9 @@ static int dhcp6_maybe_relay(struct state *state, void *inbuff, size_t sz,
if (opt6_ptr(opt, 0) + opt6_len(opt) > end) if (opt6_ptr(opt, 0) + opt6_len(opt) > end)
return 0; return 0;
/* Don't copy MAC address into reply. */
if (opt6_type(opt) != OPTION6_CLIENT_MAC)
{
int o = new_opt6(opt6_type(opt)); int o = new_opt6(opt6_type(opt));
if (opt6_type(opt) == OPTION6_RELAY_MSG) if (opt6_type(opt) == OPTION6_RELAY_MSG)
{ {
@@ -231,10 +234,11 @@ static int dhcp6_maybe_relay(struct state *state, void *inbuff, size_t sz,
if (!dhcp6_maybe_relay(state, opt6_ptr(opt, 0), opt6_len(opt), client_addr, 0, now)) if (!dhcp6_maybe_relay(state, opt6_ptr(opt, 0), opt6_len(opt), client_addr, 0, now))
return 0; return 0;
} }
else if (opt6_type(opt) != OPTION6_CLIENT_MAC) else
put_opt6(opt6_ptr(opt, 0), opt6_len(opt)); put_opt6(opt6_ptr(opt, 0), opt6_len(opt));
end_opt6(o); end_opt6(o);
} }
}
return 1; return 1;
} }