Added API to save and restore session parameters (for controllable session resumption...

[BearSSL] / tools / sslio.c

diff --git a/tools/sslio.c b/tools/sslio.c
index 0c35aa4..7fb73ea 100644 (file)
--- a/tools/sslio.c
+++ b/tools/sslio.c
@@ -67,6 +67,14 @@ dump_blob(const char *name, const void *data, size_t len)
 static int
 run_command(br_ssl_engine_context *cc, unsigned char *buf, size_t len)
 {
+       /*
+        * A single static slot for saving session parameters.
+        */
+       static br_ssl_session_parameters slot;
+       static int slot_used = 0;
+
+       size_t u;
+
        if (len < 2 || len > 3) {
                return 0;
        }
@@ -99,6 +107,28 @@ run_command(br_ssl_engine_context *cc, unsigned char *buf, size_t len)
                fprintf(stderr, "forgetting session...\n");
                br_ssl_client_forget_session((br_ssl_client_context *)cc);
                return 1;
+       case 'S':
+               fprintf(stderr, "saving session parameters...\n");
+               br_ssl_engine_get_session_parameters(cc, &slot);
+               fprintf(stderr, "  id = ");
+               for (u = 0; u < slot.session_id_len; u ++) {
+                       fprintf(stderr, "%02X", slot.session_id[u]);
+               }
+               fprintf(stderr, "\n");
+               slot_used = 1;
+               return 1;
+       case 'P':
+               if (slot_used) {
+                       fprintf(stderr, "restoring session parameters...\n");
+                       fprintf(stderr, "  id = ");
+                       for (u = 0; u < slot.session_id_len; u ++) {
+                               fprintf(stderr, "%02X", slot.session_id[u]);
+                       }
+                       fprintf(stderr, "\n");
+                       br_ssl_engine_set_session_parameters(cc, &slot);
+                       return 1;
+               }
+               return 0;
        default:
                return 0;
        }