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124 lines
3.9 KiB
124 lines
3.9 KiB
diff --git a/modules/ssl/ssl_engine_config.c b/modules/ssl/ssl_engine_config.c
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index 1d201d9..0c4bf1f 100644
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--- a/modules/ssl/ssl_engine_config.c
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+++ b/modules/ssl/ssl_engine_config.c
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@@ -75,6 +75,10 @@ SSLModConfigRec *ssl_config_global_create(server_rec *s)
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mc->stapling_refresh_mutex = NULL;
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#endif
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+#ifdef HAVE_OPENSSL_KEYLOG
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+ mc->keylog_file = NULL;
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+#endif
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+
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apr_pool_userdata_set(mc, SSL_MOD_CONFIG_KEY,
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apr_pool_cleanup_null,
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pool);
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diff --git a/modules/ssl/ssl_engine_init.c b/modules/ssl/ssl_engine_init.c
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index ef631c1..b286053 100644
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--- a/modules/ssl/ssl_engine_init.c
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+++ b/modules/ssl/ssl_engine_init.c
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@@ -437,6 +437,28 @@ apr_status_t ssl_init_Module(apr_pool_t *p, apr_pool_t *plog,
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init_bio_methods();
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#endif
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+#ifdef HAVE_OPENSSL_KEYLOG
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+ {
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+ const char *logfn = getenv("SSLKEYLOGFILE");
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+
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+ if (logfn) {
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+ rv = apr_file_open(&mc->keylog_file, logfn,
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+ APR_FOPEN_CREATE|APR_FOPEN_WRITE|APR_FOPEN_APPEND|APR_FOPEN_LARGEFILE,
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+ APR_FPROT_UREAD|APR_FPROT_UWRITE,
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+ mc->pPool);
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+ if (rv) {
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+ ap_log_error(APLOG_MARK, APLOG_NOTICE, rv, s, APLOGNO(10226)
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+ "Could not open log file '%s' configured via SSLKEYLOGFILE",
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+ logfn);
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+ return rv;
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+ }
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+
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+ ap_log_error(APLOG_MARK, APLOG_NOTICE, 0, s, APLOGNO(10227)
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+ "Init: Logging SSL private key material to %s", logfn);
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+ }
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+ }
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+#endif
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+
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return OK;
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}
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@@ -796,6 +818,12 @@ static apr_status_t ssl_init_ctx_protocol(server_rec *s,
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* https://github.com/openssl/openssl/issues/7178 */
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SSL_CTX_clear_mode(ctx, SSL_MODE_AUTO_RETRY);
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#endif
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+
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+#ifdef HAVE_OPENSSL_KEYLOG
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+ if (mctx->sc->mc->keylog_file) {
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+ SSL_CTX_set_keylog_callback(ctx, modssl_callback_keylog);
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+ }
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+#endif
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return APR_SUCCESS;
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}
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diff --git a/modules/ssl/ssl_engine_kernel.c b/modules/ssl/ssl_engine_kernel.c
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index 6611610..7058865 100644
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--- a/modules/ssl/ssl_engine_kernel.c
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+++ b/modules/ssl/ssl_engine_kernel.c
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@@ -2719,3 +2719,17 @@ int ssl_callback_SRPServerParams(SSL *ssl, int *ad, void *arg)
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}
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#endif /* HAVE_SRP */
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+
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+
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+#ifdef HAVE_OPENSSL_KEYLOG
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+/* Callback used with SSL_CTX_set_keylog_callback. */
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+void modssl_callback_keylog(const SSL *ssl, const char *line)
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+{
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+ conn_rec *conn = SSL_get_app_data(ssl);
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+ SSLSrvConfigRec *sc = mySrvConfig(conn->base_server);
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+
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+ if (sc && sc->mc->keylog_file) {
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+ apr_file_printf(sc->mc->keylog_file, "%s\n", line);
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+ }
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+}
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+#endif
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diff --git a/modules/ssl/ssl_private.h b/modules/ssl/ssl_private.h
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index 0fac5d1..2514407 100644
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--- a/modules/ssl/ssl_private.h
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+++ b/modules/ssl/ssl_private.h
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@@ -250,6 +250,10 @@ void free_bio_methods(void);
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#endif
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#endif
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+#if OPENSSL_VERSION_NUMBER >= 0x10101000L && !defined(LIBRESSL_VERSION_NUMBER)
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+#define HAVE_OPENSSL_KEYLOG
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+#endif
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+
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/* mod_ssl headers */
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#include "ssl_util_ssl.h"
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@@ -617,6 +621,12 @@ typedef struct {
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apr_global_mutex_t *stapling_cache_mutex;
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apr_global_mutex_t *stapling_refresh_mutex;
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#endif
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+
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+#ifdef HAVE_OPENSSL_KEYLOG
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+ /* Used for logging if SSLKEYLOGFILE is set at startup. */
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+ apr_file_t *keylog_file;
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+#endif
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+
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} SSLModConfigRec;
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/** Structure representing configured filenames for certs and keys for
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@@ -970,6 +980,11 @@ int ssl_stapling_init_cert(server_rec *, apr_pool_t *, apr_pool_t *,
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int ssl_callback_SRPServerParams(SSL *, int *, void *);
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#endif
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+#ifdef HAVE_OPENSSL_KEYLOG
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+/* Callback used with SSL_CTX_set_keylog_callback. */
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+void modssl_callback_keylog(const SSL *ssl, const char *line);
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+#endif
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+
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/** I/O */
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void ssl_io_filter_init(conn_rec *, request_rec *r, SSL *);
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void ssl_io_filter_register(apr_pool_t *);
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