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SUSE:SLE-12-SP3:GA
apache2.18661
apache2-mod_ssl-fix-restart.patch
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File apache2-mod_ssl-fix-restart.patch of Package apache2.18661
--- modules/ssl/mod_ssl.c | 59 ++++++++++++++++++++++++++++++++++++++-------- modules/ssl/ssl_private.h | 7 ++++- modules/ssl/ssl_util.c | 51 +++++++++++++++++++++++++++++++++++++-- 3 files changed, 104 insertions(+), 13 deletions(-) --- a/modules/ssl/mod_ssl.c +++ b/modules/ssl/mod_ssl.c @@ -30,9 +30,12 @@ #include "util_md5.h" #include "util_mutex.h" #include "ap_provider.h" +#include "http_config.h" #include <assert.h> +static int modssl_running_statically = 0; + APR_IMPLEMENT_OPTIONAL_HOOK_RUN_ALL(ssl, SSL, int, pre_handshake, (conn_rec *c,SSL *ssl,int is_proxy), (c,ssl,is_proxy), OK, DECLINED); @@ -297,22 +300,47 @@ /* * the various processing hooks */ +static int modssl_is_prelinked(void) +{ + apr_size_t i = 0; + const module *mod; + while ((mod = ap_prelinked_modules[i++])) { + if (strcmp(mod->name, "mod_ssl.c") == 0) { + return 1; + } + } + return 0; +} + static apr_status_t ssl_cleanup_pre_config(void *data) { /* * Try to kill the internals of the SSL library. */ - /* Corresponds to OPENSSL_load_builtin_modules(): - * XXX: borrowed from apps.h, but why not CONF_modules_free() - * which also invokes CONF_modules_finish()? - */ - CONF_modules_unload(1); +#ifdef HAVE_FIPS + FIPS_mode_set(0); +#endif + /* Corresponds to OBJ_create()s */ + OBJ_cleanup(); + /* Corresponds to OPENSSL_load_builtin_modules() */ + CONF_modules_free(); /* Corresponds to SSL_library_init: */ EVP_cleanup(); #if HAVE_ENGINE_LOAD_BUILTIN_ENGINES ENGINE_cleanup(); #endif - ERR_remove_state(0); +#if OPENSSL_VERSION_NUMBER >= 0x1000200fL + SSL_COMP_free_compression_methods(); +#endif + + /* Usually needed per thread, but this parent process is single-threaded */ +#if OPENSSL_VERSION_NUMBER < 0x10100000L +#if OPENSSL_VERSION_NUMBER >= 0x1000000fL + ERR_remove_thread_state(NULL); +#else + ERR_remove_state(0); +#endif +#endif /* Don't call ERR_free_strings in earlier versions, ERR_load_*_strings only * actually loaded the error strings once per process due to static @@ -321,11 +349,14 @@ ERR_free_strings(); #endif - /* Also don't call CRYPTO_cleanup_all_ex_data here; any registered - * ex_data indices may have been cached in static variables in - * OpenSSL; removing them may cause havoc. Notably, with OpenSSL + /* Also don't call CRYPTO_cleanup_all_ex_data when linked statically here; + * any registered ex_data indices may have been cached in static variables + * in OpenSSL; removing them may cause havoc. Notably, with OpenSSL * versions >= 0.9.8f, COMP_CTX cleanups would not be run, which * could result in a per-connection memory leak (!). */ + if (!modssl_running_statically) { + CRYPTO_cleanup_all_ex_data(); + } /* * TODO: determine somewhere we can safely shove out diagnostics @@ -339,6 +370,13 @@ apr_pool_t *plog, apr_pool_t *ptemp) { + modssl_running_statically = modssl_is_prelinked(); + + /* Some OpenSSL internals are allocated per-thread, make sure they + * are associated to the/our same thread-id until cleaned up. + */ + ssl_util_thread_id_setup(pconf); + /* We must register the library in full, to ensure our configuration * code can successfully test the SSL environment. */ @@ -357,6 +395,9 @@ "SRVName otherName form"); } + /* Start w/o errors (e.g. OBJ_txt2nid() above) */ + ERR_clear_error(); + /* * Let us cleanup the ssl library when the module is unloaded */ --- a/modules/ssl/ssl_private.h +++ b/modules/ssl/ssl_private.h @@ -882,7 +882,12 @@ char *ssl_util_readfilter(server_rec *, apr_pool_t *, const char *, const char * const *); BOOL ssl_util_path_check(ssl_pathcheck_t, const char *, apr_pool_t *); -void ssl_util_thread_setup(apr_pool_t *); +#if APR_HAS_THREADS +#if OPENSSL_VERSION_NUMBER < 0x10100000L +void ssl_util_thread_setup(apr_pool_t *); +#endif +void ssl_util_thread_id_setup(apr_pool_t *); +#endif int ssl_init_ssl_connection(conn_rec *c, request_rec *r); BOOL ssl_util_vhost_matches(const char *servername, server_rec *s); --- a/modules/ssl/ssl_util.c +++ b/modules/ssl/ssl_util.c @@ -247,6 +247,7 @@ } #if APR_HAS_THREADS +#if OPENSSL_VERSION_NUMBER < 0x10100000L /* * To ensure thread-safetyness in OpenSSL - work in progress */ @@ -362,6 +363,33 @@ apr_pool_destroy(l->pool); } +#if OPENSSL_VERSION_NUMBER >= 0x10000000L + +static void ssl_util_thr_id(CRYPTO_THREADID *id) +{ + /* OpenSSL needs this to return an unsigned long. On OS/390, the pthread + * id is a structure twice that big. Use the TCB pointer instead as a + * unique unsigned long. + */ +#ifdef __MVS__ + struct PSA { + char unmapped[540]; /* PSATOLD is at offset 540 in the PSA */ + unsigned long PSATOLD; + } *psaptr = 0; /* PSA is at address 0 */ + + CRYPTO_THREADID_set_numeric(id, psaptr->PSATOLD); +#else + CRYPTO_THREADID_set_numeric(id, (unsigned long) apr_os_thread_current()); +#endif +} +static apr_status_t ssl_util_thr_id_cleanup(void *old) +{ + CRYPTO_THREADID_set_callback(old); + return APR_SUCCESS; +} + +#else + static unsigned long ssl_util_thr_id(void) { /* OpenSSL needs this to return an unsigned long. On OS/390, the pthread @@ -380,10 +408,17 @@ #endif } +static apr_status_t ssl_util_thr_id_cleanup(void *old) +{ + CRYPTO_set_id_callback(old); + return APR_SUCCESS; +} + +#endif + static apr_status_t ssl_util_thread_cleanup(void *data) { CRYPTO_set_locking_callback(NULL); - CRYPTO_set_id_callback(NULL); CRYPTO_set_dynlock_create_callback(NULL); CRYPTO_set_dynlock_lock_callback(NULL); @@ -407,8 +442,6 @@ apr_thread_mutex_create(&(lock_cs[i]), APR_THREAD_MUTEX_DEFAULT, p); } - CRYPTO_set_id_callback(ssl_util_thr_id); - CRYPTO_set_locking_callback(ssl_util_thr_lock); /* Set up dynamic locking scaffolding for OpenSSL to use at its @@ -422,4 +455,16 @@ apr_pool_cleanup_register(p, NULL, ssl_util_thread_cleanup, apr_pool_cleanup_null); } + +void ssl_util_thread_id_setup(apr_pool_t *p) +{ +#if OPENSSL_VERSION_NUMBER >= 0x10000000L + CRYPTO_THREADID_set_callback(ssl_util_thr_id); +#else + CRYPTO_set_id_callback(ssl_util_thr_id); #endif + apr_pool_cleanup_register(p, NULL, ssl_util_thr_id_cleanup, + apr_pool_cleanup_null); +} +#endif /* #if OPENSSL_VERSION_NUMBER < 0x10100000L */ +#endif /* #if APR_HAS_THREADS */
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