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update to 4.63, disable sa-exim

This commit is contained in:
David Woodhouse 2006-08-26 09:30:05 +00:00
parent c11786bb54
commit 504eb7c5e8
4 changed files with 292 additions and 5 deletions
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1
.cvsignore
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@ -1,2 +1,3 @@
sa-exim-4.2.tar.gz
exim-4.62.tar.bz2
exim-4.63.tar.bz2

268
exim-4.62-dlopen-localscan.patch Normal file
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@ -0,0 +1,268 @@
The initial version of this patch was originally posted David Woodhouse, and
dman gets the credit for first integrating it with SA-Exim.
I have since then maintained it by first making a few minor changes, and
later switching it to a major/minor number scheme to support upgrades in
the exim API that don't affect backward compatibility (you can rely on
a feature denoted by the minor number and be compatible with future versions
of exim until Philip has to break the API and increase the major number)
Marc MERLIN <marc_soft@merlins.org>
diff -urN exim-4.14-0/src/EDITME exim-4.14-1/src/EDITME
--- exim-4.14-0/src/EDITME Tue Mar 11 04:20:18 2003
+++ exim-4.14-1/src/EDITME Sun Mar 23 15:34:15 2003
@@ -388,6 +388,20 @@
#------------------------------------------------------------------------------
+# On systems which support dynamic loading of shared libraries, Exim can
+# load a local_scan function specified in its config file instead of having
+# to be recompiled with the desired local_scan function. For a full
+# description of the API to this function, see the Exim specification.
+
+DLOPEN_LOCAL_SCAN=yes
+
+# If you set DLOPEN_LOCAL_SCAN, then you need to include -rdynamic in the
+# linker flags. Without it, the loaded .so won't be able to access any
+# functions from exim.
+
+LFLAGS=-rdynamic -ldl
+
+#------------------------------------------------------------------------------
# The default distribution of Exim contains only the plain text form of the
# documentation. Other forms are available separately. If you want to install
# the documentation in "info" format, first fetch the Texinfo documentation
diff -urNad 50_localscan_dlopen.tmp/src/config.h.defaults 50_localscan_dlopen/src/config.h.defaults
--- 50_localscan_dlopen.tmp/src/config.h.defaults Sun Dec 29 11:55:42 2002
+++ 50_localscan_dlopen/src/config.h.defaults Sun Dec 29 11:56:44 2002
@@ -17,6 +17,8 @@
#define AUTH_PLAINTEXT
#define AUTH_SPA
+#define DLOPEN_LOCAL_SCAN
+
#define BIN_DIRECTORY
#define CONFIGURE_FILE
diff -urN exim-4.14-0/src/globals.c exim-4.14-1/src/globals.c
--- exim-4.14-0/src/globals.c Tue Mar 11 04:20:20 2003
+++ exim-4.14-1/src/globals.c Sun Mar 23 15:34:15 2003
@@ -103,6 +103,9 @@
uschar *tls_verify_hosts = NULL;
#endif
+#ifdef DLOPEN_LOCAL_SCAN
+uschar *local_scan_path = NULL;
+#endif
/* Input-reading functions for messages, so we can use special ones for
incoming TCP/IP. The defaults use stdin. We never need these for any
diff -urN exim-4.14-0/src/globals.h exim-4.14-1/src/globals.h
--- exim-4.14-0/src/globals.h Tue Mar 11 04:20:20 2003
+++ exim-4.14-1/src/globals.h Sun Mar 23 15:34:15 2003
@@ -67,6 +67,9 @@
extern uschar *tls_verify_hosts; /* Mandatory client verification */
#endif
+#ifdef DLOPEN_LOCAL_SCAN
+extern uschar *local_scan_path; /* Path to local_scan() library */
+#endif
/* Input-reading functions for messages, so we can use special ones for
incoming TCP/IP. */
diff -urN exim-4.14-0/src/local_scan.c exim-4.14-1/src/local_scan.c
--- exim-4.14-0/src/local_scan.c Tue Mar 11 04:20:20 2003
+++ exim-4.14-1/src/local_scan.c Sun Mar 23 15:34:15 2003
@@ -5,60 +5,131 @@
/* Copyright (c) University of Cambridge 1995 - 2003 */
/* See the file NOTICE for conditions of use and distribution. */
+#include "exim.h"
-/******************************************************************************
-This file contains a template local_scan() function that just returns ACCEPT.
-If you want to implement your own version, you should copy this file to, say
-Local/local_scan.c, and edit the copy. To use your version instead of the
-default, you must set
-
-LOCAL_SCAN_SOURCE=Local/local_scan.c
-
-in your Local/Makefile. This makes it easy to copy your version for use with
-subsequent Exim releases.
-
-For a full description of the API to this function, see the Exim specification.
-******************************************************************************/
-
-
-/* This is the only Exim header that you should include. The effect of
-including any other Exim header is not defined, and may change from release to
-release. Use only the documented interface! */
-
-#include "local_scan.h"
-
-
-/* This is a "do-nothing" version of a local_scan() function. The arguments
-are:
-
- fd The file descriptor of the open -D file, which contains the
- body of the message. The file is open for reading and
- writing, but modifying it is dangerous and not recommended.
-
- return_text A pointer to an unsigned char* variable which you can set in
- order to return a text string. It is initialized to NULL.
-
-The return values of this function are:
-
- LOCAL_SCAN_ACCEPT
- The message is to be accepted. The return_text argument is
- saved in $local_scan_data.
-
- LOCAL_SCAN_REJECT
- The message is to be rejected. The returned text is used
- in the rejection message.
-
- LOCAL_SCAN_TEMPREJECT
- This specifies a temporary rejection. The returned text
- is used in the rejection message.
-*/
+#ifdef DLOPEN_LOCAL_SCAN
+#include <dlfcn.h>
+static int (*local_scan_fn)(int fd, uschar **return_text) = NULL;
+static int load_local_scan_library(void);
+#endif
int
local_scan(int fd, uschar **return_text)
{
fd = fd; /* Keep picky compilers happy */
return_text = return_text;
-return LOCAL_SCAN_ACCEPT;
+#ifdef DLOPEN_LOCAL_SCAN
+/* local_scan_path is defined AND not the empty string */
+if (local_scan_path && *local_scan_path)
+ {
+ if (!local_scan_fn)
+ {
+ if (!load_local_scan_library())
+ {
+ char *base_msg , *error_msg , *final_msg ;
+ int final_length = -1 ;
+
+ base_msg=US"Local configuration error - local_scan() library failure\n";
+ error_msg = dlerror() ;
+
+ final_length = strlen(base_msg) + strlen(error_msg) + 1 ;
+ final_msg = (char*)malloc( final_length*sizeof(char) ) ;
+ *final_msg = '\0' ;
+
+ strcat( final_msg , base_msg ) ;
+ strcat( final_msg , error_msg ) ;
+
+ *return_text = final_msg ;
+ return LOCAL_SCAN_TEMPREJECT;
+ }
+ }
+ return local_scan_fn(fd, return_text);
+ }
+else
+#endif
+ return LOCAL_SCAN_ACCEPT;
+}
+
+#ifdef DLOPEN_LOCAL_SCAN
+
+static int load_local_scan_library(void)
+{
+/* No point in keeping local_scan_lib since we'll never dlclose() anyway */
+void *local_scan_lib = NULL;
+int (*local_scan_version_fn)(void);
+int vers_maj;
+int vers_min;
+
+local_scan_lib = dlopen(local_scan_path, RTLD_NOW);
+if (!local_scan_lib)
+ {
+ log_write(0, LOG_MAIN|LOG_REJECT, "local_scan() library open failed - "
+ "message temporarily rejected");
+ return FALSE;
+ }
+
+local_scan_version_fn = dlsym(local_scan_lib, "local_scan_version_major");
+if (!local_scan_version_fn)
+ {
+ dlclose(local_scan_lib);
+ log_write(0, LOG_MAIN|LOG_REJECT, "local_scan() library doesn't contain "
+ "local_scan_version_major() function - message temporarily rejected");
+ return FALSE;
+ }
+
+/* The major number is increased when the ABI is changed in a non
+ backward compatible way. */
+vers_maj = local_scan_version_fn();
+
+local_scan_version_fn = dlsym(local_scan_lib, "local_scan_version_minor");
+if (!local_scan_version_fn)
+ {
+ dlclose(local_scan_lib);
+ log_write(0, LOG_MAIN|LOG_REJECT, "local_scan() library doesn't contain "
+ "local_scan_version_minor() function - message temporarily rejected");
+ return FALSE;
+ }
+
+/* The minor number is increased each time a new feature is added (in a
+ way that doesn't break backward compatibility) -- Marc */
+vers_min = local_scan_version_fn();
+
+
+if (vers_maj != LOCAL_SCAN_ABI_VERSION_MAJOR)
+ {
+ dlclose(local_scan_lib);
+ local_scan_lib = NULL;
+ log_write(0, LOG_MAIN|LOG_REJECT, "local_scan() has an incompatible major"
+ "version number, you need to recompile your module for this version"
+ "of exim (The module was compiled for version %d.%d and this exim provides"
+ "ABI version %d.%d)", vers_maj, vers_min, LOCAL_SCAN_ABI_VERSION_MAJOR,
+ LOCAL_SCAN_ABI_VERSION_MINOR);
+ return FALSE;
+ }
+else if (vers_min > LOCAL_SCAN_ABI_VERSION_MINOR)
+ {
+ dlclose(local_scan_lib);
+ local_scan_lib = NULL;
+ log_write(0, LOG_MAIN|LOG_REJECT, "local_scan() has an incompatible minor"
+ "version number, you need to recompile your module for this version"
+ "of exim (The module was compiled for version %d.%d and this exim provides"
+ "ABI version %d.%d)", vers_maj, vers_min, LOCAL_SCAN_ABI_VERSION_MAJOR,
+ LOCAL_SCAN_ABI_VERSION_MINOR);
+ return FALSE;
+ }
+
+local_scan_fn = dlsym(local_scan_lib, "local_scan");
+if (!local_scan_fn)
+ {
+ dlclose(local_scan_lib);
+ log_write(0, LOG_MAIN|LOG_REJECT, "local_scan() library doesn't contain "
+ "local_scan() function - message temporarily rejected");
+ return FALSE;
+ }
+
+return TRUE;
}
+
+#endif /* DLOPEN_LOCAL_SCAN */
/* End of local_scan.c */
diff -urN exim-4.14-0/src/readconf.c exim-4.14-1/src/readconf.c
--- exim-4.14-0/src/readconf.c Tue Mar 11 04:20:22 2003
+++ exim-4.14-1/src/readconf.c Sun Mar 23 15:34:15 2003
@@ -182,6 +182,9 @@
{ "local_from_prefix", opt_stringptr, &local_from_prefix },
{ "local_from_suffix", opt_stringptr, &local_from_suffix },
{ "local_interfaces", opt_stringptr, &local_interfaces },
+#ifdef DLOPEN_LOCAL_SCAN
+ { "local_scan_path", opt_stringptr, &local_scan_path },
+#endif
{ "local_scan_timeout", opt_time, &local_scan_timeout },
{ "local_sender_retain", opt_bool, &local_sender_retain },
{ "localhost_number", opt_stringptr, &host_number_string },

27
exim.spec
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@ -1,7 +1,11 @@
# SA-Exim has long since been obsoleted by the proper built-in ACL support
# from exiscan. Disable it for FC6 unless people scream.
# %define buildsa 1
Summary: The exim mail transfer agent
Name: exim
Version: 4.62
Release: 6%{?dist}
Version: 4.63
Release: 1%{?dist}
License: GPL
Url: http://www.exim.org/
Group: System Environment/Daemons
@ -16,7 +20,9 @@ Source2: exim.init
Source3: exim.sysconfig
Source4: exim.logrotate
Source11: exim.pam
%if 0%{?buildsa}
Source13: http://marc.merlins.org/linux/exim/files/sa-exim-4.2.tar.gz
%endif
Patch4: exim-rhl.patch
Patch6: exim-4.50-config.patch
Patch8: exim-4.24-libdir.patch
@ -25,6 +31,7 @@ Patch13: exim-4.43-pamconfig.patch
Patch14: exim-4.50-spamdconf.patch
Patch15: exim-4.52-dynamic-pcre.patch
Patch17: exim-4.61-ldap-deprecated.patch
Patch18: exim-4.62-dlopen-localscan.patch
Requires: /etc/aliases
BuildRequires: db4-devel openssl-devel openldap-devel pam-devel
@ -65,9 +72,9 @@ well as other nasty things like teergrubing.
%prep
%setup -q
%if 0%{?buildsa}
%setup -q -T -D -a 13
# patch sa
cat sa-exim*/localscan_dlopen_exim_4.20_or_better.patch | patch -p1
%endif
cp src/EDITME Local/Makefile
cp exim_monitor/EDITME Local/eximon.conf
@ -79,6 +86,7 @@ cp exim_monitor/EDITME Local/eximon.conf
%patch14 -p1 -b .spamd
%patch15 -p1 -b .pcre
%patch17 -p1 -b .ldap
%patch18 -p1 -b .dl
%build
%ifnarch s390 s390x
@ -87,11 +95,12 @@ cp exim_monitor/EDITME Local/eximon.conf
make CFLAGS="$RPM_OPT_FLAGS -fPIE" LFLAGS=-pie _lib=%{_lib}
%endif
%if 0%{?buildsa}
# build sa-exim
cd sa-exim*
perl -pi -e 's|\@lynx|HOME=/ /usr/bin/lynx|g;' Makefile
make SACONF=%{_sysconfdir}/exim/sa-exim.conf CFLAGS="$RPM_OPT_FLAGS -fPIC"
%endif
%install
rm -rf $RPM_BUILD_ROOT
@ -156,12 +165,14 @@ install %SOURCE2 $RPM_BUILD_ROOT%{_sysconfdir}/rc.d/init.d/exim
mkdir -p $RPM_BUILD_ROOT%{_sysconfdir}/logrotate.d
install -m 0644 %SOURCE4 $RPM_BUILD_ROOT%{_sysconfdir}/logrotate.d/exim
%if 0%{?buildsa}
# install sa
cd sa-exim*
mkdir -p $RPM_BUILD_ROOT%{_libexecdir}/exim
install *.so $RPM_BUILD_ROOT%{_libexecdir}/exim
install -m 644 *.conf $RPM_BUILD_ROOT%{_sysconfdir}/exim
ln -s sa-exim*.so $RPM_BUILD_ROOT%{_libexecdir}/exim/sa-exim.so
%endif
# generate ghost .pem file
mkdir -p $RPM_BUILD_ROOT/etc/pki/tls/{certs,private}
@ -281,14 +292,20 @@ fi
%{_sbindir}/eximon
%{_sbindir}/eximon.bin
%if 0%{?buildsa}
%files sa
%defattr(-,root,root)
%{_libexecdir}/exim
%config(noreplace) %{_sysconfdir}/exim/sa-*.conf
%doc sa-exim*/*.html
%doc sa-exim*/{ACKNOWLEDGEMENTS,INSTALL,LICENSE,TODO}
%endif
%changelog
* Sat Aug 26 2006 David Woodhouse <dwmw2@infradead.org> - 4.63-1
- Update to 4.63
- Disable sa-exim, but leave the dlopen patch in
* Wed Jul 19 2006 Thomas Woerner <twoerner@redhat.com> - 4.62-6
- final version
- changed permissions of /etc/pki/tls/*/exim.pem to 0600

1
sources
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@ -1,2 +1,3 @@
ad76f73c6b3d01caa88078e3e622745a sa-exim-4.2.tar.gz
a8efc92427192fd3b7b5e71decc8cc31 exim-4.62.tar.bz2
dde2d5f7106d51607409af94174db46c exim-4.63.tar.bz2