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authorMatt Caswell <matt@openssl.org>2021-10-14 17:31:36 +0100
committerMatt Caswell <matt@openssl.org>2021-10-22 11:08:12 +0100
commitfd7c2ff23c65eb8b06ae2d9d600d6e3301d98aaf (patch)
treea81794937ba0b94d24fb79cf812c9e0b2512923e /apps
parentd49d1c120dac5349df0bb36960bc914e211368bd (diff)
Fix the s_server psk_server_cb for use in DTLS
Commit 0007ff257c added a protocol version check to psk_server_cb but failed to take account of DTLS causing DTLS based psk connections to fail. Fixes #16707 Reviewed-by: Ben Kaduk <kaduk@mit.edu> (Merged from https://github.com/openssl/openssl/pull/16838) (cherry picked from commit 8b09a9c76d873f62c2507fa9628a9c96c1d66d5c)
Diffstat (limited to 'apps')
-rw-r--r--apps/s_server.c10
1 files changed, 5 insertions, 5 deletions
diff --git a/apps/s_server.c b/apps/s_server.c
index c5d9221e90..0e71c161ef 100644
--- a/apps/s_server.c
+++ b/apps/s_server.c
@@ -131,12 +131,12 @@ static unsigned int psk_server_cb(SSL *ssl, const char *identity,
if (s_debug)
BIO_printf(bio_s_out, "psk_server_cb\n");
- if (SSL_version(ssl) >= TLS1_3_VERSION) {
+ if (!SSL_is_dtls(ssl) && SSL_version(ssl) >= TLS1_3_VERSION) {
/*
- * This callback is designed for use in TLSv1.2. It is possible to use
- * a single callback for all protocol versions - but it is preferred to
- * use a dedicated callback for TLSv1.3. For TLSv1.3 we have
- * psk_find_session_cb.
+ * This callback is designed for use in (D)TLSv1.2 (or below). It is
+ * possible to use a single callback for all protocol versions - but it
+ * is preferred to use a dedicated callback for TLSv1.3. For TLSv1.3 we
+ * have psk_find_session_cb.
*/
return 0;
}