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author | 2015-11-30 01:45:08 -0500 | |
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committer | 2015-11-30 01:45:08 -0500 | |
commit | e8ec7aa8e38a93f5b034ac74cebce5de23710317 (patch) | |
tree | aa031937bf856c1f8d6ad7877b8d2cb0224da5ef /rubbos/app/httpd-2.0.64/modules/ssl/README | |
parent | cc40af334e619bb549038238507407866f774f8f (diff) |
upload http
JIRA: BOTTLENECK-10
Change-Id: I7598427ff904df438ce77c2819ee48ac75ffa8da
Signed-off-by: hongbotian <hongbo.tianhongbo@huawei.com>
Diffstat (limited to 'rubbos/app/httpd-2.0.64/modules/ssl/README')
-rw-r--r-- | rubbos/app/httpd-2.0.64/modules/ssl/README | 129 |
1 files changed, 129 insertions, 0 deletions
diff --git a/rubbos/app/httpd-2.0.64/modules/ssl/README b/rubbos/app/httpd-2.0.64/modules/ssl/README new file mode 100644 index 00000000..b24af26f --- /dev/null +++ b/rubbos/app/httpd-2.0.64/modules/ssl/README @@ -0,0 +1,129 @@ +SYNOPSIS + + This Apache module provides strong cryptography for the Apache 2.0 webserver + via the Secure Sockets Layer (SSL v2/v3) and Transport Layer Security (TLS + v1) protocols by the help of the SSL/TLS implementation library OpenSSL which + is based on SSLeay from Eric A. Young and Tim J. Hudson. + + The mod_ssl package was created in April 1998 by Ralf S. Engelschall + and was originally derived from software developed by Ben Laurie for + use in the Apache-SSL HTTP server project. The mod_ssl implementation + for Apache 1.3 continues to be supported by the modssl project + <http://www.modssl.org/>. + +SOURCES + + See the top-level LAYOUT file in httpd-2.0 for file descriptions. + + The source files are written in clean ANSI C and pass the ``gcc -O -g + -ggdb3 -Wall -Wshadow -Wpointer-arith -Wcast-align -Wmissing-prototypes + -Wmissing-declarations -Wnested-externs -Winline'' compiler test + (assuming `gcc' is GCC 2.95.2 or newer) without any complains. When + you make changes or additions make sure the source still passes this + compiler test. + +FUNCTIONS + + Inside the source code you will be confronted with the following types of + functions which can be identified by their prefixes: + + ap_xxxx() ............... Apache API function + ssl_xxxx() .............. mod_ssl function + SSL_xxxx() .............. OpenSSL function (SSL library) + OpenSSL_xxxx() .......... OpenSSL function (SSL library) + X509_xxxx() ............. OpenSSL function (Crypto library) + PEM_xxxx() .............. OpenSSL function (Crypto library) + EVP_xxxx() .............. OpenSSL function (Crypto library) + RSA_xxxx() .............. OpenSSL function (Crypto library) + +DATA STRUCTURES + + Inside the source code you will be confronted with the following + data structures: + + server_rec .............. Apache (Virtual) Server + conn_rec ................ Apache Connection + request_rec ............. Apache Request + SSLModConfig ............ mod_ssl (Global) Module Configuration + SSLSrvConfig ............ mod_ssl (Virtual) Server Configuration + SSLDirConfig ............ mod_ssl Directory Configuration + SSLConnConfig ........... mod_ssl Connection Configuration + SSLFilterRec ............ mod_ssl Filter Context + SSL_CTX ................. OpenSSL Context + SSL_METHOD .............. OpenSSL Protocol Method + SSL_CIPHER .............. OpenSSL Cipher + SSL_SESSION ............. OpenSSL Session + SSL ..................... OpenSSL Connection + BIO ..................... OpenSSL Connection Buffer + + For an overview how these are related and chained together have a look at the + page in README.dsov.{fig,ps}. It contains overview diagrams for those data + structures. It's designed for DIN A4 paper size, but you can easily generate + a smaller version inside XFig by specifing a magnification on the Export + panel. + +EXPERIMENTAL CODE + + Experimental code is always encapsulated as following: + + | #ifdef SSL_EXPERIMENTAL_xxxx + | ... + | #endif + + This way it is only compiled in when this define is enabled with + the APACI --enable-rule=SSL_EXPERIMENTAL option and as long as the + C pre-processor variable SSL_EXPERIMENTAL_xxxx_IGNORE is _NOT_ + defined (via CFLAGS). Or in other words: SSL_EXPERIMENTAL enables all + SSL_EXPERIMENTAL_xxxx variables, except if SSL_EXPERIMENTAL_xxxx_IGNORE + is already defined. Currently the following features are experimental: + + o SSL_EXPERIMENTAL_ENGINE + The ability to support the new forthcoming OpenSSL ENGINE stuff. + Until this development branch of OpenSSL is merged into the main + stream, you have to use openssl-engine-0.9.x.tar.gz for this. + mod_ssl automatically recognizes this OpenSSL variant and then can + activate external crypto devices through SSLCryptoDevice directive. + +INCOMPATIBILITIES + + The following intentional incompatibilities exist between mod_ssl 2.x + from Apache 1.3 and this mod_ssl version for Apache 2.0: + + o The complete EAPI-based SSL_VENDOR stuff was removed. + o The complete EAPI-based SSL_COMPAT stuff was removed. + o The <IfDefine> variable MOD_SSL is no longer provided automatically + +MAJOR CHANGES + + For a complete history of changes for Apache 2.0 mod_ssl, see the + CHANGES file in the top-level httpd-2.0 directory. The following + is a condensed summary of the major changes were made between + mod_ssl 2.x from Apache 1.3 and this mod_ssl version for Apache 2.0: + + o The DBM based session cache is now based on APR's DBM API only. + o The shared memory based session cache is now based on APR's APIs. + o SSL I/O is now implemented in terms of filters rather than BUFF + o Eliminated ap_global_ctx. Storing Persistant information in + process_rec->pool->user_data. The ssl_pphrase_Handle_CB() and + ssl_config_global_* () functions have an extra parameter now - + "server_rec *" - which is used to retrieve the SSLModConfigRec. + o Properly support restarts, allowing mod_ssl to be added to a server + that is already running and to change server certs/keys on restart + o Various performance enhancements + o proxy support is no longer an "extension", much of the mod_ssl core + was re-written (ssl_engine_{init,kernel,config}.c) to be generic so + it could be re-used in proxy mode. + - the optional function ssl_proxy_enable is provide for mod_proxy + to enable proxy support + - proxy support now requires 'SSLProxyEngine on' to be configured + - proxy now supports SSLProxyCARevocation{Path,File} in addition to + the original SSLProxy* directives + o per-directory SSLCACertificate{File,Path} is now thread-safe but + requires SSL_set_cert_store patch to OpenSSL + o RSA sslc is supported via ssl_toolkit_compat.h + o the ssl_engine_{ds,ext}.c source files are obsolete and no longer + exist + +TODO + + See the top-level STATUS file in httpd-2.0 for current efforts and goals. |