[Libguestfs] [PATCH 2/3] nbdkit/curl: added support for tls13 ciphers

[Przemyslaw Czarnowski]

From: Przemyslaw Czarnowski <przemyslaw.hawrylewicz.czarnowski at intel.com>

Added tls13-ciphers parameter which translates to CURLOPT_TLS13_CIPHERS.

Signed-off-by: Karol Niczyj <karol.niczyj at intel.com>
Signed-off-by: Przemyslaw Czarnowski <przemyslaw.hawrylewicz.czarnowski at intel.com>
---
 plugins/curl/curl.c | 7 +++++++
 1 file changed, 7 insertions(+)

diff --git a/plugins/curl/curl.c b/plugins/curl/curl.c
index 50440bf9..2e823b3f 100644
--- a/plugins/curl/curl.c
+++ b/plugins/curl/curl.c
@@ -85,6 +85,7 @@ const char *proxy_user = NULL;
 bool sslverify = true;
 const char *ssl_version = NULL;
 const char *ssl_cipher_list = NULL;
+const char *tls13_ciphers = NULL;
 bool tcp_keepalive = false;
 bool tcp_nodelay = true;
 uint32_t timeout = 0;
@@ -309,6 +310,9 @@ curl_config (const char *key, const char *value)
   else if (strcmp (key, "ssl-cipher-list") == 0)
     ssl_cipher_list = value;
 
+  else if (strcmp (key, "tls13-ciphers") == 0)
+    tls13_ciphers = value;
+
   else if (strcmp (key, "tcp-keepalive") == 0) {
     r = nbdkit_parse_bool (value);
     if (r == -1)
@@ -413,6 +417,7 @@ curl_config_complete (void)
   "sslverify=false            Do not verify SSL certificate of remote host.\n" \
   "ssl-version=<VERSION>      Specify preferred TLS/SSL version.\n " \
   "ssl-cipher-list=C1:C2:..   Specify TLS/SSL cipher suites to be used.\n" \
+  "tls13-ciphers=C1:C2:..     Specify TLS 1.3 cipher suites to be used.\n" \
   "tcp-keepalive=true         Enable TCP keepalives.\n" \
   "tcp-nodelay=false          Disable Nagle’s algorithm.\n" \
   "unix-socket-path=<PATH>    Open Unix domain socket instead of TCP/IP.\n" \
@@ -550,6 +555,8 @@ curl_open (int readonly)
   }
   if (ssl_cipher_list)
     curl_easy_setopt (h->c, CURLOPT_SSL_CIPHER_LIST, ssl_cipher_list);
+  if (tls13_ciphers)
+    curl_easy_setopt (h->c, CURLOPT_TLS13_CIPHERS, tls13_ciphers);
   if (tcp_keepalive)
     curl_easy_setopt (h->c, CURLOPT_TCP_KEEPALIVE, 1L);
   if (!tcp_nodelay)
-- 
2.26.2