eapi.patch

apach加密模块

##  _____   _    ____ ___ 
## | ____| / \  |  _ \_ _|
## |  _|  / _ \ | |_) | | 
## | |__ / ___ \|  __/| | 
## |____/_/   \_\_|  |___|  Extended API for Apache
## ____________________________________________________________________________
## 
## Annotated patch file: eapi.patch
## Copyright (c) 1998-2000 Ralf S. Engelschall, All Rights Reserved. 
## Created on: 25-Feb-2000
##
## This file assembles changes to existing Apache source files
## between the original Apache and the patched variant. It can be
## automatically applied to a vanilla Apache source tree with the
## 'patch' tool to upgrade those files.  Each patch snippet is
## annotated with a short description.
##
## This file contains all patches to the Apache source
## tree which add the Extended API (EAPI) support.
##

+---------------------------------------------------------------------------
| Add the EAPI and EAPI_MM configuration entries which triggers the EAPI
| patches and configured the shared memory support via the MM library.
+---------------------------------------------------------------------------
Index: src/Configuration.tmpl
--- src/Configuration.tmpl	1999/08/17 11:21:38	1.1.1.5
+++ src/Configuration.tmpl	2000/01/22 14:14:42	1.20
@@ -68,6 +115,24 @@
 #TARGET=
 
 ################################################################
+# Extended API (EAPI) support:
+#
+# EAPI:
+#   The EAPI rule enables more module hooks, a generic low-level hook
+#   mechanism, a generic context mechanism and shared memory based pools. 
+#
+# EAPI_MM:
+#   Set the EAPI_MM variable to either the directory of a MM Shared Memory
+#   Library source tree or the installation tree of MM. Alternatively you can
+#   also use the value 'SYSTEM' which then indicates that MM is installed
+#   under various system locations. When the MM library files cannot be found
+#   the EAPI still can be built, but without shared memory pool support, of
+#   course.
+
+Rule EAPI=no
+#EAPI_MM=SYSTEM
+
+################################################################
 # Dynamic Shared Object (DSO) support
 #
 # There is experimental support for compiling the Apache core and

+---------------------------------------------------------------------------
| Patch in implementation of the EAPI rule.
+---------------------------------------------------------------------------
Index: src/Configure
--- src/Configure	2000/02/24 13:55:25	1.1.1.10
+++ src/Configure	2000/02/24 13:58:16	1.12
@@ -1727,6 +1727,72 @@
 fi
 
 ####################################################################
+## Extended API (EAPI) support:
+##
+if [ "x$RULE_EAPI" = "x" ]; then
+    RULE_EAPI=`./helpers/CutRule EAPI $file`
+fi
+if [ "x$RULE_EAPI" = "xyes" ]; then
+    echo " + enabling Extended API (EAPI)"
+    CFLAGS="$CFLAGS -DEAPI"
+    #   some vendor compilers are too restrictive
+    #   for our ap_hook and ap_ctx sources.
+    case "$OS:$CC" in
+        *IRIX-32*:*/cc|*IRIX-32*:cc )
+            CFLAGS="$CFLAGS -woff 1048,1110,1164"
+            ;;
+    esac
+    #   MM Shared Memory Library support for EAPI
+    if [ "x$EAPI_MM" = "x" ]; then
+        EAPI_MM=`egrep '^EAPI_MM=' $file | tail -1 | awk -F= '{print $2}'`
+    fi
+    if [ "x$EAPI_MM" != "x" ]; then
+        case $EAPI_MM in
+            SYSTEM|/* ) ;;
+            * ) for p in . .. ../..; do
+                    if [ -d "$p/$EAPI_MM" ]; then
+                        EAPI_MM="`echo $p/$EAPI_MM | sed -e 's;/\./;/;g'`" 
+                        break
+                    fi
+                done
+                ;;
+        esac
+        if [ "x$EAPI_MM" = "xSYSTEM" ]; then
+            echo "   using MM library for EAPI: (system-wide)"
+            CFLAGS="$CFLAGS -DEAPI_MM"
+            __INCLUDES="`mm-config --cflags`"
+            if [ "x$__INCLUDES" != "x-I/usr/include" ]; then
+                INCLUDES="$INCLUDES $__INCLUDES"
+            fi
+            LDFLAGS="$LDFLAGS `mm-config --ldflags`"
+            LIBS="$LIBS `mm-config --libs`"
+        else
+            if [ -f "$EAPI_MM/.libs/libmm.a" -a -f "$EAPI_MM/mm.h" ]; then
+                echo "   using MM library: $EAPI_MM (source-tree only)"
+                case $EAPI_MM in
+                    /* ) ;;
+                    *  ) EAPI_MM="\$(SRCDIR)/$EAPI_MM" ;;
+                esac
+                CFLAGS="$CFLAGS -DEAPI_MM"
+                INCLUDES="$INCLUDES -I$EAPI_MM"
+                LDFLAGS="$LDFLAGS -L$EAPI_MM/.libs"
+                LIBS="$LIBS -lmm"
+            elif [ -f "$EAPI_MM/bin/mm-config" ]; then
+                echo "   using MM library: $EAPI_MM (installed)"
+                CFLAGS="$CFLAGS -DEAPI_MM"
+                INCLUDES="$INCLUDES `$EAPI_MM/bin/mm-config --cflags`"
+                LDFLAGS="$LDFLAGS `$EAPI_MM/bin/mm-config --ldflags`"
+                LIBS="$LIBS `$EAPI_MM/bin/mm-config --libs`"
+            else
+                echo "Configure:Error: Cannot find MM library under $EAPI_MM" 1>&2
+                exit 1
+            fi
+        fi
+    fi
+fi
+
+
+####################################################################
 ## Add in the Expat library if needed/wanted.
 ##
 if [ -d ./lib/expat-lite/ ]; then

+---------------------------------------------------------------------------
| Add the build support for the ap_hook.c and ap_ctx.c sources (Unix)
+---------------------------------------------------------------------------
Index: src/ap/Makefile.tmpl
--- src/ap/Makefile.tmpl	1999/08/17 11:21:40	1.1.1.5
+++ src/ap/Makefile.tmpl	1999/08/17 11:42:12	1.5
@@ -6,7 +6,8 @@
 LIB=libap.a
 
 OBJS=ap_cpystrn.o ap_execve.o ap_fnmatch.o ap_getpass.o ap_md5c.o ap_signal.o \
-     ap_slack.o ap_snprintf.o ap_sha1.o ap_checkpass.o ap_base64.o
+     ap_slack.o ap_snprintf.o ap_sha1.o ap_checkpass.o ap_base64.o \
+     ap_hook.o ap_ctx.o ap_mm.o
 
 .c.o:
 	$(CC) -c $(INCLUDES) $(CFLAGS) $<

+---------------------------------------------------------------------------
| Add the build support for the ap_hook.c and ap_ctx.c sources (Win32)
+---------------------------------------------------------------------------
Index: src/ap/ap.mak
--- src/ap/ap.mak	1999/08/17 11:21:40	1.1.1.5
+++ src/ap/ap.mak	1999/08/17 11:42:12	1.5
@@ -47,6 +47,9 @@
 	-@erase "$(INTDIR)\ap_cpystrn.obj"
 	-@erase "$(INTDIR)\ap_fnmatch.obj"
 	-@erase "$(INTDIR)\ap_md5c.obj"
+	-@erase "$(INTDIR)\ap_hook.obj"
+	-@erase "$(INTDIR)\ap_ctx.obj"
+	-@erase "$(INTDIR)\ap_mm.obj"
 	-@erase "$(INTDIR)\ap_signal.obj"
 	-@erase "$(INTDIR)\ap_slack.obj"
 	-@erase "$(INTDIR)\ap_snprintf.obj"
@@ -105,6 +108,9 @@
 	"$(INTDIR)\ap_cpystrn.obj" \
 	"$(INTDIR)\ap_fnmatch.obj" \
 	"$(INTDIR)\ap_md5c.obj" \
+	"$(INTDIR)\ap_hook.obj" \
+	"$(INTDIR)\ap_ctx.obj" \
+	"$(INTDIR)\ap_mm.obj" \
 	"$(INTDIR)\ap_signal.obj" \
 	"$(INTDIR)\ap_slack.obj" \
 	"$(INTDIR)\ap_snprintf.obj" \
@@ -139,6 +145,9 @@
 	-@erase "$(INTDIR)\ap_cpystrn.obj"
 	-@erase "$(INTDIR)\ap_fnmatch.obj"
 	-@erase "$(INTDIR)\ap_md5c.obj"
+	-@erase "$(INTDIR)\ap_hook.obj"
+	-@erase "$(INTDIR)\ap_ctx.obj"
+	-@erase "$(INTDIR)\ap_mm.obj"
 	-@erase "$(INTDIR)\ap_signal.obj"
 	-@erase "$(INTDIR)\ap_slack.obj"
 	-@erase "$(INTDIR)\ap_snprintf.obj"
@@ -197,6 +206,9 @@
 	"$(INTDIR)\ap_cpystrn.obj" \
 	"$(INTDIR)\ap_fnmatch.obj" \
 	"$(INTDIR)\ap_md5c.obj" \
+	"$(INTDIR)\ap_hook.obj" \
+	"$(INTDIR)\ap_ctx.obj" \
+	"$(INTDIR)\ap_mm.obj" \
 	"$(INTDIR)\ap_signal.obj" \
 	"$(INTDIR)\ap_slack.obj" \
 	"$(INTDIR)\ap_snprintf.obj" \

+---------------------------------------------------------------------------
| Replace the MODULE_MAGIC_COOKIE to allow us to distinguish between
| EAPI-aware modules and standard modules.
+---------------------------------------------------------------------------
Index: src/include/ap_mmn.h
--- src/include/ap_mmn.h	2000/02/24 13:55:30	1.1.1.6
+++ src/include/ap_mmn.h	2000/02/24 13:58:16	1.6
@@ -229,7 +229,23 @@
  * 19990320.7           - add ap_strcasestr()
  */
 
+/* 
+ * Under Extended API situations we replace the magic cookie "AP13" with
+ * "EAPI" to let us distinguish between the EAPI module structure (which
+ * contain additional pointers at the end) and standard module structures
+ * (which lack at least NULL's for the pointers at the end).  This is
+ * important because standard ("AP13") modules would dump core when we
+ * dispatch over the additional hooks because NULL's are missing at the end of
+ * the module structure. See also the code in mod_so for details on loading
+ * (we accept both "AP13" and "EAPI").
+ */
+#ifdef EAPI
+#define MODULE_MAGIC_COOKIE_AP13 0x41503133UL /* "AP13" */
+#define MODULE_MAGIC_COOKIE_EAPI 0x45415049UL /* "EAPI" */
+#define MODULE_MAGIC_COOKIE      MODULE_MAGIC_COOKIE_EAPI 
+#else
 #define MODULE_MAGIC_COOKIE 0x41503133UL /* "AP13" */
+#endif
 
 #ifndef MODULE_MAGIC_NUMBER_MAJOR
 #define MODULE_MAGIC_NUMBER_MAJOR 19990320

+---------------------------------------------------------------------------
| Add the additional prototypes and defines for the 
| shared memory pools.
+---------------------------------------------------------------------------
Index: src/include/alloc.h
--- src/include/alloc.h	1999/08/17 11:21:45	1.1.1.6
+++ src/include/alloc.h	1999/08/17 11:42:12	1.5
@@ -93,6 +93,15 @@
 
 pool * ap_init_alloc(void);		/* Set up everything */
 API_EXPORT(pool *) ap_make_sub_pool(pool *);	/* All pools are subpools of permanent_pool */
+#if defined(EAPI)
+typedef enum { AP_POOL_RD, AP_POOL_RW } ap_pool_lock_mode;
+int ap_shared_pool_possible(void);
+void ap_init_alloc_shared(int);
+void ap_kill_alloc_shared(void);
+API_EXPORT(pool *) ap_make_shared_sub_pool(pool *);
+API_EXPORT(int) ap_acquire_pool(pool *, ap_pool_lock_mode);
+API_EXPORT(int) ap_release_pool(pool *);
+#endif
 API_EXPORT(void) ap_destroy_pool(pool *);
 
 /* pools have nested lifetimes -- sub_pools are destroyed when the

+---------------------------------------------------------------------------
| Add the additional context variable `ctx' for BUFF structures.
+---------------------------------------------------------------------------
Index: src/include/buff.h
--- src/include/buff.h	1999/01/10 10:46:41	1.1.1.3
+++ src/include/buff.h	1999/07/28 13:09:13	1.7
@@ -124,6 +124,10 @@
     /* transport handle, for RPC binding handle or some such */
     void *t_handle;
 
+#ifdef EAPI
+    ap_ctx *ctx;
+#endif /* EAPI */
+
 #ifdef B_SFIO
     Sfio_t *sf_in;
     Sfio_t *sf_out;
@@ -175,6 +179,10 @@
 /* Internal routines */
 API_EXPORT(int) ap_bflsbuf(int c, BUFF *fb);
 API_EXPORT(int) ap_bfilbuf(BUFF *fb);
+
+#ifdef EAPI
+#define ap_bpeekc(fb) ( ((fb)->incnt == 0) ? EOF : *((fb)->inptr) )
+#endif
 
 #ifndef CHARSET_EBCDIC
 

+---------------------------------------------------------------------------
| Add the four additional Apache API module hooks.
+---------------------------------------------------------------------------
Index: src/include/http_config.h
--- src/include/http_config.h	1999/08/17 11:21:46	1.1.1.6
+++ src/include/http_config.h	1999/08/17 11:42:12	1.8
@@ -275,6 +275,65 @@
     void (*child_exit) (server_rec *, pool *);
 #endif
     int (*post_read_request) (request_rec *);
+
+#ifdef EAPI
+    /*
+     * ANSI C guarantees us that we can at least _extend_ the module structure
+     * with additional hooks without the need to change all existing modules.
+     * Because: ``If there are fewer initializers in the list than members of
+     * the structure, the trailing members are initialized with 0.'' (The C
+     * Programming Language, 2nd Ed., A8.7 Initialization). So we just
+     * have to put our additional hooks here:
+     *
+     * add_module: 
+     *     Called from within ap_add_module() right after the module structure
+     *     was linked into the Apache internal module list.  It is mainly
+     *     intended to be used to define configuration defines (<IfDefine>)
+     *     which have to be available directly after a LoadModule/AddModule.
+     *     Actually this is the earliest possible hook a module can use.
+     *
+     * remove_module: 
+     *     Called from within ap_remove_module() right before the module
+     *     structure is kicked out from the Apache internal module list.
+     *     Actually this is last possible hook a module can use and exists for
+     *     consistency with the add_module hook.
+     *
+     * rewrite_command:
+     *     Called right after a configuration directive line was read and
+     *     before it is processed. It is mainly intended to be used for
+     *     rewriting directives in order to provide backward compatibility to
+     *     old directive variants.
+     *
+     * new_connection:
+     *     Called from within the internal new_connection() function, right
+     *     after the conn_rec structure for the new established connection was
+     *     created and before Apache starts processing the request with
+     *     ap_read_request().  It is mainly intended to be used to setup/run
+     *     connection dependent things like sending start headers for
+     *     on-the-fly compression, etc.
+     *
+     * close_connection:
+     *     Called from within the Apache dispatching loop just before any
+     *     ap_bclose() is performed on the socket connection, but a long time
+     *     before any pool cleanups are done for the connection (which can be
+     *     too late for some applications).  It is mainly intended to be used
+     *     to close/finalize connection dependent things like sending end
+     *     headers for on-the-fly compression, etc.
+     */
+#ifdef ULTRIX_BRAIN_DEATH
+    void  (*add_module) ();
+    void  (*remove_module) ();
+    char *(*rewrite_command) ();
+    void  (*new_connection) ();
+    void  (*close_connection) ();
+#else
+    void  (*add_module) (struct module_struct *);
+    void  (*remove_module) (struct module_struct *);
+    char *(*rewrite_command) (cmd_parms *, void *config, const char *);
+    void  (*new_connection) (conn_rec *);
+    void  (*close_connection) (conn_rec *);
+#endif
+#endif /* EAPI */
 } module;
 
 /* Initializer for the first few module slots, which are only

+---------------------------------------------------------------------------
| Add the additional variable `ap_global_ctx' for holding
| global module context.
+---------------------------------------------------------------------------
Index: src/include/http_conf_globals.h
--- src/include/http_conf_globals.h	2000/01/21 18:06:25	1.1.1.6
+++ src/include/http_conf_globals.h	2000/01/21 19:51:10	1.7
@@ -91,6 +91,9 @@
 extern int ap_listenbacklog;
 extern int ap_dump_settings;
 extern API_VAR_EXPORT int ap_extended_status;
+#ifdef EAPI
+extern API_VAR_EXPORT ap_ctx *ap_global_ctx;
+#endif /* EAPI */
 
 extern char *ap_pid_fname;
 extern char *ap_scoreboard_fname;

+---------------------------------------------------------------------------
| Export the ap_set_callback_and_alarm() function because this
| first is a useful thing and second we need it because all
| other API/timeout functions deal with a request_rec while
| some modules need a generic timeout mechanism.
+---------------------------------------------------------------------------
Index: src/include/http_main.h
--- src/include/http_main.h	1999/01/10 10:46:43	1.1.1.3
+++ src/include/http_main.h	1999/01/10 11:07:22	1.3
@@ -124,7 +124,11 @@
 API_EXPORT(void) ap_sync_scoreboard_image(void);
 int ap_update_child_status(int child_num, int status, request_rec *r);
 void ap_time_process_request(int child_num, int status);
+#ifdef EAPI
+API_EXPORT(unsigned int) ap_set_callback_and_alarm(void (*fn) (int), int x);
+#else
 unsigned int ap_set_callback_and_alarm(void (*fn) (int), int x);
+#endif
 API_EXPORT(int) ap_check_alarm(void);
 
 #ifndef NO_OTHER_CHILD

+---------------------------------------------------------------------------
| First add support for the HTTPS protocol scheme via hooks,
| second add the additional context variable `ctx' for the
| conn_rec, server_rec and request_rec structures. And third
| add a prototype for the additional ap_add_config_define()
| function.
+---------------------------------------------------------------------------
Index: src/include/httpd.h
--- src/include/httpd.h	2000/02/24 13:55:31	1.1.1.10
+++ src/include/httpd.h	2000/02/24 13:58:16	1.19
@@ -69,7 +69,19 @@
 /* Headers in which EVERYONE has an interest... */
 
 #include "ap_config.h"
+#ifdef EAPI
+#include "ap_mm.h"
+#endif
 #include "alloc.h"
+/*
+ * Include the Extended API headers.
+ * Don't move the position. It has to be after alloc.h because it uses the
+ * pool stuff but before buff.h because the buffer stuff uses the EAPI, too. 
+ */
+#ifdef EAPI
+#include "ap_hook.h"
+#include "ap_ctx.h"
+#endif /* EAPI */
 #include "buff.h"
 #include "ap.h"
 
@@ -140,8 +152,13 @@
 #define DEFAULT_HTTP_PORT	80
 #define DEFAULT_HTTPS_PORT	443
 #define ap_is_default_port(port,r)	((port) == ap_default_port(r))
+#ifdef EAPI
+#define ap_http_method(r)   (ap_ctx_get((r)->ctx, "ap::http::method") != NULL ? ((char *)ap_ctx_get((r)->ctx, "ap::http::method")) : "http")
+#define ap_default_port(r)  (ap_ctx_get((r)->ctx, "ap::default::port") != NULL ? atoi((char *)ap_ctx_get((r)->ctx, "ap::default::port")) : DEFAULT_HTTP_PORT)
+#else /* EAPI */
 #define ap_http_method(r)	"http"
 #define ap_default_port(r)	DEFAULT_HTTP_PORT
+#endif /* EAPI */
 
 /* --------- Default user name and group name running standalone ---------- */
 /* --- These may be specified as numbers by placing a # before a number --- */
@@ -353,6 +370,19 @@
 #define SCOREBOARD_MAINTENANCE_INTERVAL 1000000
 #endif
 
+/*
+ * Unix only:
+ * Path to Shared Memory Files 
+ */
+#ifdef EAPI
+#ifndef EAPI_MM_CORE_PATH
+#define EAPI_MM_CORE_PATH "logs/mm"
+#endif
+#ifndef EAPI_MM_CORE_MAXSIZE
+#define EAPI_MM_CORE_MAXSIZE 1024*1024*1 /* max. 1MB */
+#endif
+#endif
+
 /* Number of requests to try to handle in a single process.  If <= 0,
  * the children don't die off.  That's the default here, since I'm still
  * interested in finding and stanching leaks.
@@ -438,6 +468,9 @@
 API_EXPORT(const char *) ap_get_server_version(void);
 API_EXPORT(void) ap_add_version_component(const char *component);
 API_EXPORT(const char *) ap_get_server_built(void);
+#ifdef EAPI
+API_EXPORT(void) ap_add_config_define(const char *define);
+#endif /* EAPI */
 
 /* Numeric release version identifier: MMNNFFRBB: major minor fix final beta
  * Always increases along the same track as the source branch.
@@ -819,6 +852,10 @@
  * record to improve 64bit alignment the next time we need to break
  * binary compatibility for some other reason.
  */
+
+#ifdef EAPI
+    ap_ctx *ctx;
+#endif /* EAPI */
 };
 
 
@@ -867,6 +904,9 @@
     char *local_host;		/* used for ap_get_server_name when
 				 * UseCanonicalName is set to DNS
 				 * (ignores setting of HostnameLookups) */
+#ifdef EAPI
+    ap_ctx *ctx;
+#endif /* EAPI */
 };
 
 /* Per-vhost config... */
@@ -939,6 +979,10 @@
     int limit_req_line;      /* limit on size of the HTTP request line    */
     int limit_req_fieldsize; /* limit on size of any request header field */
     int limit_req_fields;    /* limit on number of request header fields  */
+
+#ifdef EAPI
+    ap_ctx *ctx;
+#endif /* EAPI */
 };
 
 /* These are more like real hosts than virtual hosts */