From 67738645dc0b044fc7d120a3c67af5635d0d78ec Mon Sep 17 00:00:00 2001
From: Matt Caswell <matt@openssl.org>
Date: Thu, 3 Aug 2017 10:13:31 +0100
Subject: Add functions for getting/setting SNI/ALPN info in SSL_SESSION

Reviewed-by: Ben Kaduk <kaduk@mit.edu>
(Merged from https://github.com/openssl/openssl/pull/3926)
---
 ssl/ssl_sess.c | 39 +++++++++++++++++++++++++++++++++++++++
 1 file changed, 39 insertions(+)

(limited to 'ssl')

diff --git a/ssl/ssl_sess.c b/ssl/ssl_sess.c
index 6292d01..1482a3e 100644
--- a/ssl/ssl_sess.c
+++ b/ssl/ssl_sess.c
@@ -906,6 +906,18 @@ const char *SSL_SESSION_get0_hostname(const SSL_SESSION *s)
     return s->ext.hostname;
 }
 
+int SSL_SESSION_set1_hostname(SSL_SESSION *s, const char *hostname)
+{
+    OPENSSL_free(s->ext.hostname);
+    if (hostname == NULL) {
+        s->ext.hostname = NULL;
+        return 1;
+    }
+    s->ext.hostname = OPENSSL_strdup(hostname);
+
+    return s->ext.hostname != NULL;
+}
+
 int SSL_SESSION_has_ticket(const SSL_SESSION *s)
 {
     return (s->ext.ticklen > 0) ? 1 : 0;
@@ -936,6 +948,33 @@ int SSL_SESSION_set_max_early_data(SSL_SESSION *s, uint32_t max_early_data)
     return 1;
 }
 
+void SSL_SESSION_get0_alpn_selected(const SSL_SESSION *s,
+                                    const unsigned char **alpn,
+                                    size_t *len)
+{
+    *alpn = s->ext.alpn_selected;
+    *len = s->ext.alpn_selected_len;
+}
+
+int SSL_SESSION_set1_alpn_selected(SSL_SESSION *s, const unsigned char *alpn,
+                                   size_t len)
+{
+    OPENSSL_free(s->ext.alpn_selected);
+    if (alpn == NULL || len == 0) {
+        s->ext.alpn_selected = NULL;
+        s->ext.alpn_selected_len = 0;
+        return 1;
+    }
+    s->ext.alpn_selected = OPENSSL_memdup(alpn, len);
+    if (s->ext.alpn_selected == NULL) {
+        s->ext.alpn_selected_len = 0;
+        return 0;
+    }
+    s->ext.alpn_selected_len = len;
+
+    return 1;
+}
+
 X509 *SSL_SESSION_get0_peer(SSL_SESSION *s)
 {
     return s->peer;
-- 
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