resolved: require at least version 3.6.0 of GnuTLS for DNS-over-TLS

Increase the required version to ensure TLS 1.3 is always supported when using GnuTLS for DNS-over-TLS and allow further changes to use recent API additions.
This commit is contained in:
Iwan Timmer 2019-10-29 20:26:05 +01:00
parent 644ee25461
commit 38e053c58f
3 changed files with 2 additions and 6 deletions

2
README
View file

@ -155,7 +155,7 @@ REQUIREMENTS:
libmicrohttpd (optional)
libpython (optional)
libidn2 or libidn (optional)
gnutls >= 3.1.4 (optional, >= 3.5.3 is required to support DNS-over-TLS with gnutls)
gnutls >= 3.1.4 (optional, >= 3.6.0 is required to support DNS-over-TLS with gnutls)
openssl >= 1.1.0 (optional, required to support DNS-over-TLS with openssl)
elfutils >= 158 (optional)
polkit (optional)

View file

@ -1199,7 +1199,7 @@ if dns_over_tls != 'false'
if dns_over_tls == 'openssl'
have_gnutls = false
else
have_gnutls = (conf.get('HAVE_GNUTLS') == 1 and libgnutls.version().version_compare('>= 3.5.3'))
have_gnutls = (conf.get('HAVE_GNUTLS') == 1 and libgnutls.version().version_compare('>= 3.6.0'))
if dns_over_tls == 'gnutls' and not have_gnutls
error('DNS-over-TLS support was requested with gnutls, but dependencies are not available')
endif

View file

@ -9,11 +9,7 @@
#include "resolved-dns-stream.h"
#include "resolved-dnstls.h"
#if GNUTLS_VERSION_NUMBER >= 0x030600
#define PRIORTY_STRING "NORMAL:-VERS-ALL:+VERS-TLS1.3:+VERS-TLS1.2"
#else
#define PRIORTY_STRING "NORMAL:-VERS-ALL:+VERS-TLS1.2"
#endif
DEFINE_TRIVIAL_CLEANUP_FUNC(gnutls_session_t, gnutls_deinit);
static ssize_t dnstls_stream_writev(gnutls_transport_ptr_t p, const giovec_t *iov, int iovcnt) {