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| author | Lennart Poettering <lennart@poettering.net> | 2015-08-25 18:54:55 +0200 |
|---|---|---|
| committer | Lennart Poettering <lennart@poettering.net> | 2015-08-25 18:54:55 +0200 |
| commit | 069360a66a227606f4cf5e6ec05de61cd6ade76e (patch) | |
| tree | 60181977f649faf8e3d730c0d51a108325a64f64 /src/resolve/resolved-dns-packet.c | |
| parent | 4667e00a61c2f60922558bc5e33ac9d3073a482c (diff) | |
resolved: make packet flags logic more expressive again
This partially reverts 106784ebb7b303ae471851100a773ad2aebf5b80, ad
readds separate DNS_PACKET_MAKE_FLAGS() invocations for the LLMNR and
DNS case. This is important since SOme flags have different names and
meanings on LLMNR and on DNS and we should clarify that via the comments
and how we put things together.
Diffstat (limited to 'src/resolve/resolved-dns-packet.c')
| -rw-r--r-- | src/resolve/resolved-dns-packet.c | 43 |
1 files changed, 21 insertions, 22 deletions
diff --git a/src/resolve/resolved-dns-packet.c b/src/resolve/resolved-dns-packet.c index 784d949cce..bebd1ee4a6 100644 --- a/src/resolve/resolved-dns-packet.c +++ b/src/resolve/resolved-dns-packet.c @@ -64,7 +64,7 @@ int dns_packet_new(DnsPacket **ret, DnsProtocol protocol, size_t mtu) { int dns_packet_new_query(DnsPacket **ret, DnsProtocol protocol, size_t mtu) { DnsPacket *p; DnsPacketHeader *h; - int r, rd; + int r; assert(ret); @@ -74,27 +74,26 @@ int dns_packet_new_query(DnsPacket **ret, DnsProtocol protocol, size_t mtu) { h = DNS_PACKET_HEADER(p); - switch (protocol) { - case DNS_PROTOCOL_LLMNR: - /* no recursion for link-local resolving protocols */ - rd = 0; - break; - - default: - /* ask for recursion */ - rd = 1; - break; - } - - h->flags = htobe16(DNS_PACKET_MAKE_FLAGS(0 /* qr */, - 0 /* opcode */, - 0 /* aa */, - 0 /* tc */, - rd /* rd */, - 0 /* ra */, - 0 /* ad */, - 0 /* cd */, - 0 /* rcode */)); + if (protocol == DNS_PROTOCOL_LLMNR) + h->flags = htobe16(DNS_PACKET_MAKE_FLAGS(0 /* qr */, + 0 /* opcode */, + 0 /* c */, + 0 /* tc */, + 0 /* t */, + 0 /* ra */, + 0 /* ad */, + 0 /* cd */, + 0 /* rcode */)); + else + h->flags = htobe16(DNS_PACKET_MAKE_FLAGS(0 /* qr */, + 0 /* opcode */, + 0 /* aa */, + 0 /* tc */, + 1 /* rd (ask for recursion) */, + 0 /* ra */, + 0 /* ad */, + 0 /* cd */, + 0 /* rcode */)); *ret = p; return 0; |