diff options
| author | icpz <cc@icpz.dev> | 2020-11-21 00:55:25 +0800 |
|---|---|---|
| committer | Hans Dedecker <dedeckeh@gmail.com> | 2020-11-24 21:24:33 +0100 |
| commit | 694148a87fa5a0c964286fdaac1fa490a2fb530b (patch) | |
| tree | f71a6ffb0061c6971d351ef3377f7772d7a8d868 /src/dhcpv4.c | |
| parent | fb55e80394c51d7502bb278f57520dec15a11355 (diff) | |
config: add option to indicate dns service presence
Adds the config option to set if ipv6 dns service is availiable on the
interface. In some cases the dns service may not be listening on the
ipv6 address of the interface, and thus should not be announced to clients.
Signed-off-by: Paizhuo Chen <cc@icpz.dev>
Diffstat (limited to 'src/dhcpv4.c')
| -rw-r--r-- | src/dhcpv4.c | 7 |
1 files changed, 4 insertions, 3 deletions
diff --git a/src/dhcpv4.c b/src/dhcpv4.c index 25a4c77..c3d16f5 100644 --- a/src/dhcpv4.c +++ b/src/dhcpv4.c @@ -842,9 +842,10 @@ void dhcpv4_handle_msg(void *addr, void *data, size_t len, 4 * iface->dhcpv4_router_cnt, iface->dhcpv4_router); - if (iface->dhcpv4_dns_cnt == 0) - dhcpv4_put(&reply, &cookie, DHCPV4_OPT_DNSSERVER, 4, &iface->dhcpv4_local); - else + if (iface->dhcpv4_dns_cnt == 0) { + if (iface->dns_service) + dhcpv4_put(&reply, &cookie, DHCPV4_OPT_DNSSERVER, 4, &iface->dhcpv4_local); + } else dhcpv4_put(&reply, &cookie, DHCPV4_OPT_DNSSERVER, 4 * iface->dhcpv4_dns_cnt, iface->dhcpv4_dns); |