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@ -0,0 +1,126 @@
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From f177201770c75e72ff9c4686b0488a1c4344140c Mon Sep 17 00:00:00 2001
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From: =?UTF-8?q?Lubo=C5=A1=20Uhliarik?= <luhliari@redhat.com>
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Date: Mon, 10 Jun 2024 18:22:34 +0200
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Subject: [PATCH] defer ENGINE_finish() calls to a cleanup
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---
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src/event/ngx_event_openssl.c | 51 +++++++++++++++++++++++++++--------
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1 file changed, 40 insertions(+), 11 deletions(-)
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diff --git a/src/event/ngx_event_openssl.c b/src/event/ngx_event_openssl.c
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index 2b3c576..b3f06ea 100644
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--- a/src/event/ngx_event_openssl.c
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+++ b/src/event/ngx_event_openssl.c
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@@ -17,7 +17,7 @@ typedef struct {
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ngx_uint_t engine; /* unsigned engine:1; */
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} ngx_openssl_conf_t;
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-
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+static ngx_int_t ngx_ssl_engine_cleanup(void *data);
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static X509 *ngx_ssl_load_certificate(ngx_pool_t *pool, char **err,
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ngx_str_t *cert, STACK_OF(X509) **chain);
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static EVP_PKEY *ngx_ssl_load_certificate_key(ngx_pool_t *pool, char **err,
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@@ -137,6 +137,15 @@ int ngx_ssl_certificate_name_index;
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int ngx_ssl_stapling_index;
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+static ngx_int_t
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+ngx_ssl_engine_cleanup(void *data){
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+ ENGINE *e = data;
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+
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+ ENGINE_finish(e);
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+
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+ return NGX_OK;
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+}
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+
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ngx_int_t
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ngx_ssl_init(ngx_log_t *log)
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{
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@@ -628,8 +637,9 @@ ngx_ssl_load_certificate(ngx_pool_t *pool, char **err, ngx_str_t *cert,
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#ifndef OPENSSL_NO_ENGINE
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- u_char *p, *last;
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- ENGINE *engine;
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+ u_char *p, *last;
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+ ENGINE *engine;
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+ ngx_pool_cleanup_t *cln;
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p = cert->data + sizeof("engine:") - 1;
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last = (u_char *) ngx_strchr(p, ':');
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@@ -654,6 +664,16 @@ ngx_ssl_load_certificate(ngx_pool_t *pool, char **err, ngx_str_t *cert,
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return NULL;
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}
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+ cln = ngx_pool_cleanup_add(pool, 0);
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+ if (cln == NULL) {
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+ *err = "failed to add ENGINE cleanup";
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+ ENGINE_free(engine);
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+ return NULL;
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+ }
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+
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+ cln->handler = ngx_ssl_engine_cleanup;
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+ cln->data = engine;
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+
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*last++ = ':';
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struct {
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@@ -667,7 +687,6 @@ ngx_ssl_load_certificate(ngx_pool_t *pool, char **err, ngx_str_t *cert,
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return NULL;
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}
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- ENGINE_finish(engine);
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ENGINE_free(engine);
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/* set chain to null */
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@@ -775,11 +794,13 @@ static EVP_PKEY *
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ngx_ssl_load_certificate_key(ngx_pool_t *pool, char **err,
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ngx_str_t *key, ngx_array_t *passwords)
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{
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- BIO *bio;
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- EVP_PKEY *pkey;
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- ngx_str_t *pwd;
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- ngx_uint_t tries;
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- pem_password_cb *cb;
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+ BIO *bio;
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+ EVP_PKEY *pkey;
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+ ngx_str_t *pwd;
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+ ngx_uint_t tries;
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+ pem_password_cb *cb;
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+ ngx_pool_cleanup_t *cln;
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+
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if (ngx_strncmp(key->data, "engine:", sizeof("engine:") - 1) == 0) {
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@@ -811,18 +832,26 @@ ngx_ssl_load_certificate_key(ngx_pool_t *pool, char **err,
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return NULL;
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}
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+ cln = ngx_pool_cleanup_add(pool, 0);
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+ if (cln == NULL) {
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+ *err = "failed to add ENGINE cleanup";
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+ ENGINE_free(engine);
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+ return NULL;
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+ }
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+
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+ cln->handler = ngx_ssl_engine_cleanup;
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+ cln->data = engine;
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+
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*last++ = ':';
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pkey = ENGINE_load_private_key(engine, (char *) last, 0, 0);
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if (pkey == NULL) {
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*err = "ENGINE_load_private_key() failed";
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- ENGINE_finish(engine);
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ENGINE_free(engine);
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return NULL;
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}
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- ENGINE_finish(engine);
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ENGINE_free(engine);
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return pkey;
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--
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2.44.0
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