diff options
| author | Tom Gundersen <teg@jklm.no> | 2015-06-24 15:08:40 +0200 |
|---|---|---|
| committer | Tom Gundersen <teg@jklm.no> | 2015-11-27 01:35:34 +0100 |
| commit | 7586f4d172dd9c3ccc3126fc47dca9e49adec132 (patch) | |
| tree | 99bcd93e4a31491d1f146d1ae29197fab70ce3ed /src/resolve/resolved-dns-scope.c | |
| parent | 9c5e12a4314e7192e834e1b855e5e80111e636a6 (diff) | |
resolved: set the DNSSEC OK (DO) flag
This indicates that we can handle DNSSEC records (per RFC3225), even if
all we do is silently drop them. This feature requires EDNS0 support.
As we do not yet support larger UDP packets, this feature increases the
risk of getting truncated packets.
Similarly to how we fall back to plain UDP if EDNS0 fails, we will fall
back to plain EDNS0 if EDNS0+DO fails (with the same logic of remembering
success and retrying after a grace period after failure).
Diffstat (limited to 'src/resolve/resolved-dns-scope.c')
| -rw-r--r-- | src/resolve/resolved-dns-scope.c | 6 |
1 files changed, 5 insertions, 1 deletions
diff --git a/src/resolve/resolved-dns-scope.c b/src/resolve/resolved-dns-scope.c index 42478e41e2..80070da2b9 100644 --- a/src/resolve/resolved-dns-scope.c +++ b/src/resolve/resolved-dns-scope.c @@ -185,7 +185,11 @@ int dns_scope_emit(DnsScope *s, int fd, DnsServer *server, DnsPacket *p) { return -EOPNOTSUPP; if (server->possible_features >= DNS_SERVER_FEATURE_LEVEL_EDNS0) { - r = dns_packet_append_opt_rr(p, DNS_PACKET_UNICAST_SIZE_MAX, &saved_size); + bool edns_do; + + edns_do = server->possible_features >= DNS_SERVER_FEATURE_LEVEL_DO; + + r = dns_packet_append_opt_rr(p, DNS_PACKET_UNICAST_SIZE_MAX, edns_do, &saved_size); if (r < 0) return r; |