aboutsummaryrefslogtreecommitdiff
path: root/src/stream/ngx_stream_ssl_module.c
diff options
context:
space:
mode:
authorSergey Kandaurov <pluknet@nginx.com>2024-09-20 14:08:42 +0400
committerRoman Arutyunyan <arutyunyan.roman@gmail.com>2024-09-20 14:43:00 +0400
commit18afcda938cd2d4712d0d083b57161290a5a2d34 (patch)
tree928574fc116b7965e246f0408709acb902e9871c /src/stream/ngx_stream_ssl_module.c
parent1a64c196a7d43f83a14fec20ce8936e599c92865 (diff)
downloadnginx-18afcda938cd2d4712d0d083b57161290a5a2d34.tar.gz
nginx-18afcda938cd2d4712d0d083b57161290a5a2d34.zip
SSL: optional ssl_client_certificate for ssl_verify_client.
Starting from TLSv1.1 (as seen since draft-ietf-tls-rfc2246-bis-00), the "certificate_authorities" field grammar of the CertificateRequest message was redone to allow no distinguished names. In TLSv1.3, with the restructured CertificateRequest message, this can be similarly done by optionally including the "certificate_authorities" extension. This allows to avoid sending DNs at all. In practice, aside from published TLS specifications, all supported SSL/TLS libraries allow to request client certificates with an empty DN list for any protocol version. For instance, when operating in TLSv1, this results in sending the "certificate_authorities" list as a zero-length vector, which corresponds to the TLSv1.1 specification. Such behaviour goes back to SSLeay. The change relaxes the requirement to specify at least one trusted CA certificate in the ssl_client_certificate directive, which resulted in sending DNs of these certificates (closes #142). Instead, all trusted CA certificates can be specified now using the ssl_trusted_certificate directive if needed. A notable difference that certificates specified in ssl_trusted_certificate are always loaded remains (see 3648ba7db). Co-authored-by: Praveen Chaudhary <praveenc@nvidia.com>
Diffstat (limited to 'src/stream/ngx_stream_ssl_module.c')
-rw-r--r--src/stream/ngx_stream_ssl_module.c8
1 files changed, 6 insertions, 2 deletions
diff --git a/src/stream/ngx_stream_ssl_module.c b/src/stream/ngx_stream_ssl_module.c
index 072e74917..0233a9258 100644
--- a/src/stream/ngx_stream_ssl_module.c
+++ b/src/stream/ngx_stream_ssl_module.c
@@ -1008,9 +1008,13 @@ ngx_stream_ssl_merge_srv_conf(ngx_conf_t *cf, void *parent, void *child)
if (conf->verify) {
- if (conf->client_certificate.len == 0 && conf->verify != 3) {
+ if (conf->verify != 3
+ && conf->client_certificate.len == 0
+ && conf->trusted_certificate.len == 0)
+ {
ngx_log_error(NGX_LOG_EMERG, cf->log, 0,
- "no ssl_client_certificate for ssl_verify_client");
+ "no ssl_client_certificate or "
+ "ssl_trusted_certificate for ssl_verify_client");
return NGX_CONF_ERROR;
}