From: Daniel Danzberger <daniel@dd-wrt.com>
Date: Sun, 8 Dec 2019 20:14:08 +0000 (+0100)
Subject: ustream-ssl: mbedtls: fix ssl client verification
X-Git-Url: http://git.openwrt.org/?p=project%2Fustream-ssl.git;a=commitdiff_plain;h=30cebb4fc78e49e0432a404f7c9dd8c9a93b3cc3

ustream-ssl: mbedtls: fix ssl client verification

The ustream_ssl_update_own_cert() function should, like the name suggests, only
update the local ssl peer's own certificate and not the any of the CA's.

By overwriting the CA's certifcates when setting the own certificate, the code
broke SSL client verification.

This bug was only triggerd when:
 ustream_ssl_context_set_crt_file()
was called after
 ustream_ssl_context_add_ca_crt_file()

Signed-off-by: Daniel Danzberger <daniel@dd-wrt.com>
---

diff --git a/ustream-mbedtls.c b/ustream-mbedtls.c
index 85bbb1c..74c27a5 100644
--- a/ustream-mbedtls.c
+++ b/ustream-mbedtls.c
@@ -182,16 +182,9 @@ static void ustream_ssl_update_own_cert(struct ustream_ssl_ctx *ctx)
 	if (!ctx->cert.version)
 		return;
 
-	if (!ctx->server) {
-		mbedtls_ssl_conf_ca_chain(&ctx->conf, &ctx->cert, NULL);
-		return;
-	}
-
 	if (!ctx->key.pk_info)
 		return;
 
-	if (ctx->cert.next)
-		mbedtls_ssl_conf_ca_chain(&ctx->conf, ctx->cert.next, NULL);
 	mbedtls_ssl_conf_own_cert(&ctx->conf, &ctx->cert, &ctx->key);
 }