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authorIvan Nardi <12729895+IvanNardi@users.noreply.github.com>2021-01-07 10:56:39 +0100
committerGitHub <noreply@github.com>2021-01-07 10:56:39 +0100
commit2080cc73655a55a25b7d643b8c194d450425e753 (patch)
tree97d3500fa80ea02084aaecc1c1fc4c22774d85da /src/lib
parent00dabce65e526a99e7848fe7ab53ac3bd9a68b92 (diff)
QUIC: add suppport for DNS-over-QUIC (#1107)
Even if it is only an early internet draft, DoQ has already (at least) one deployed implementation. See: https://www.zdnet.com/article/ad-blocker-adguard-deploys-worlds-first-dns-over-quic-resolver/ Draft: https://tools.ietf.org/html/draft-huitema-dprive-dnsoquic-00 In the future, if this protocol will be really used, it might be worth to rename NDPI_PROTOCOL_DOH_DOT in NDPI_PROTOCOL_DOH_DOT_DOQ
Diffstat (limited to 'src/lib')
-rw-r--r--src/lib/ndpi_main.c2
-rw-r--r--src/lib/protocols/quic.c7
2 files changed, 8 insertions, 1 deletions
diff --git a/src/lib/ndpi_main.c b/src/lib/ndpi_main.c
index 6f536952a..0b84f98ef 100644
--- a/src/lib/ndpi_main.c
+++ b/src/lib/ndpi_main.c
@@ -875,7 +875,7 @@ static void ndpi_init_protocol_defaults(struct ndpi_detection_module_struct *ndp
ndpi_set_proto_defaults(ndpi_str, NDPI_PROTOCOL_FUN, NDPI_PROTOCOL_DOH_DOT, 0 /* can_have_a_subprotocol */,
no_master, no_master, "DoH_DoT", NDPI_PROTOCOL_CATEGORY_NETWORK /* dummy */,
ndpi_build_default_ports(ports_a, 853, 0, 0, 0, 0) /* TCP */,
- ndpi_build_default_ports(ports_b, 0, 0, 0, 0, 0) /* UDP */);
+ ndpi_build_default_ports(ports_b, 784, 0, 0, 0, 0) /* UDP */);
ndpi_set_proto_defaults(ndpi_str, NDPI_PROTOCOL_FUN, NDPI_PROTOCOL_REDDIT, 0 /* can_have_a_subprotocol */,
no_master, no_master, "Reddit", NDPI_PROTOCOL_CATEGORY_SOCIAL_NETWORK,
ndpi_build_default_ports(ports_a, 0, 0, 0, 0, 0) /* TCP */,
diff --git a/src/lib/protocols/quic.c b/src/lib/protocols/quic.c
index 48a9db734..a4c93ed1e 100644
--- a/src/lib/protocols/quic.c
+++ b/src/lib/protocols/quic.c
@@ -1191,6 +1191,13 @@ static void process_tls(struct ndpi_detection_module_struct *ndpi_struct,
Negotiated version is only present in the ServerHello message too, but
fortunately, QUIC always uses TLS version 1.3 */
flow->protos.stun_ssl.ssl.ssl_version = 0x0304;
+
+ /* DNS-over-QUIC: ALPN is "doq" or "doq-XXX" (for drafts versions) */
+ if(flow->protos.stun_ssl.ssl.alpn &&
+ strncmp(flow->protos.stun_ssl.ssl.alpn, "doq", 3) == 0) {
+ NDPI_LOG_DBG(ndpi_struct, "Found DOQ (ALPN: [%s])\n", flow->protos.stun_ssl.ssl.alpn);
+ ndpi_int_change_protocol(ndpi_struct, flow, NDPI_PROTOCOL_DOH_DOT, NDPI_PROTOCOL_QUIC);
+ }
}
static void process_chlo(struct ndpi_detection_module_struct *ndpi_struct,
struct ndpi_flow_struct *flow,