diff options
author | Luke Shumaker <lukeshu@sbcglobal.net> | 2016-09-13 20:39:58 -0400 |
---|---|---|
committer | Luke Shumaker <lukeshu@sbcglobal.net> | 2016-09-13 20:39:58 -0400 |
commit | b3ec0a0674f4e499bcb6d2469acdf9d2d574c3d6 (patch) | |
tree | 374687545d464bb1e57991cf73b654a7fa0b83ba /src/resolve/resolved-dns-stream.h | |
parent | f6e7ffdf3fe8e3ed5e659f747946461350ade5a8 (diff) | |
parent | ae8150ecbd54765622aadf288100440d71a10ccd (diff) |
Merge tag 'systemd/v231-1.parabola1' into systemd/parabola
Diffstat (limited to 'src/resolve/resolved-dns-stream.h')
-rw-r--r-- | src/resolve/resolved-dns-stream.h | 23 |
1 files changed, 21 insertions, 2 deletions
diff --git a/src/resolve/resolved-dns-stream.h b/src/resolve/resolved-dns-stream.h index 5ccc842249..e6569678fa 100644 --- a/src/resolve/resolved-dns-stream.h +++ b/src/resolve/resolved-dns-stream.h @@ -26,8 +26,16 @@ typedef struct DnsStream DnsStream; #include "resolved-dns-packet.h" #include "resolved-dns-transaction.h" +/* Streams are used by three subsystems: + * + * 1. The normal transaction logic when doing a DNS or LLMNR lookup via TCP + * 2. The LLMNR logic when accepting a TCP-based lookup + * 3. The DNS stub logic when accepting a TCP-based lookup + */ + struct DnsStream { Manager *manager; + int n_ref; DnsProtocol protocol; @@ -50,12 +58,23 @@ struct DnsStream { int (*on_packet)(DnsStream *s); int (*complete)(DnsStream *s, int error); - DnsTransaction *transaction; + DnsTransaction *transaction; /* when used by the transaction logic */ + DnsQuery *query; /* when used by the DNS stub logic */ LIST_FIELDS(DnsStream, streams); }; int dns_stream_new(Manager *m, DnsStream **s, DnsProtocol protocol, int fd); -DnsStream *dns_stream_free(DnsStream *s); +DnsStream *dns_stream_unref(DnsStream *s); +DnsStream *dns_stream_ref(DnsStream *s); int dns_stream_write_packet(DnsStream *s, DnsPacket *p); + +static inline bool DNS_STREAM_QUEUED(DnsStream *s) { + assert(s); + + if (s->fd < 0) /* already stopped? */ + return false; + + return !!s->write_packet; +} |