[exim-cvs] radius dynamic module

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A: exim-cvs
Assumpte: [exim-cvs] radius dynamic module
Gitweb: https://git.exim.org/exim.git/commitdiff/2484552ee924d5e5a30d4c41be365a19cdd48ed5
Commit:     2484552ee924d5e5a30d4c41be365a19cdd48ed5
Parent:     dff7867f39b72466ba376333a029121dde448cd8
Author:     Jeremy Harris <jgh146exb@???>
AuthorDate: Sat Sep 7 14:56:11 2024 +0100
Committer:  Jeremy Harris <jgh146exb@???>
CommitDate: Sat Sep 7 14:57:08 2024 +0100


    radius dynamic module
---
 doc/doc-txt/NewStuff                               |  6 +++---
 src/OS/Makefile-Base                               |  5 +----
 src/scripts/Configure-Makefile                     | 24 ++++++++++------------
 src/scripts/MakeLinks                              |  3 ++-
 src/scripts/drivers-Makefile                       | 14 ++++++-------
 src/src/config.h.defaults                          |  3 ++-
 src/src/exim.h                                     |  3 +++
 src/src/expand.c                                   | 19 +++++++++++------
 src/src/functions.h                                |  1 -
 src/src/miscmods/Makefile                          | 11 +++++-----
 src/src/miscmods/arc.c                             |  2 +-
 src/src/miscmods/dkim.c                            |  2 +-
 src/src/miscmods/dmarc.c                           |  2 +-
 src/src/{auths/call_radius.c => miscmods/radius.c} | 22 +++++++++++++++++++-
 src/src/miscmods/spf.c                             |  2 +-
 15 files changed, 73 insertions(+), 46 deletions(-)


diff --git a/doc/doc-txt/NewStuff b/doc/doc-txt/NewStuff
index 5220408e8..fe94e46c7 100644
--- a/doc/doc-txt/NewStuff
+++ b/doc/doc-txt/NewStuff
@@ -14,9 +14,9 @@ Version 4.98

3. Events smtp:fail:protocol and smtp:fail:syntax

- 4. JSON and LDAP lookup support, SPF, DKIM, DMARC and ARC support, all the
-    router and authenticator drivers, and all the transport drivers except
-    smtp, can now be built as loadable modules
+ 4. JSON and LDAP lookup support, RADIUS, SPF, DKIM, DMARC and ARC support,
+    all the router and authenticator drivers, and all the transport drivers
+    except smtp, can now be built as loadable modules


 Version 4.98
 ------------
diff --git a/src/OS/Makefile-Base b/src/OS/Makefile-Base
index ccbe3ccdd..ddd7cf5ac 100644
--- a/src/OS/Makefile-Base
+++ b/src/OS/Makefile-Base
@@ -509,7 +509,7 @@ OBJ_LOOKUPS = lf_quote.o lf_check_file.o lf_sqlperform.o
 OBJ_ROUTERS = rf_change_domain.o rf_expand_data.o rf_get_errors_address.o \
     rf_get_munge_headers.o rf_get_transport.o rf_get_ugid.o \
     rf_lookup_hostlist.o rf_queue_add.o rf_self_action.o rf_set_ugid.o
-OBJ_AUTHS = call_pam.o call_pwcheck.o call_radius.o check_serv_cond.o \
+OBJ_AUTHS = call_pam.o call_pwcheck.o check_serv_cond.o \
     get_data.o get_no64_data.o pwcheck.o


 OBJ_EXIM = acl.o base64.o child.o crypt16.o daemon.o dbfn.o debug.o deliver.o \
@@ -974,9 +974,6 @@ call_pam.o:         auths/call_pam.c
 call_pwcheck.o:     auths/call_pwcheck.c auths/pwcheck.h
     @echo "$(CC) $<"
     $(FE)$(CC) -c $(CFLAGS) -I. $(INCLUDE) $<
-call_radius.o:      auths/call_radius.c
-    @echo "$(CC) $<"
-    $(FE)$(CC) -c $(CFLAGS) -I. $(INCLUDE) $<
 check_serv_cond.o:  auths/check_serv_cond.c
     @echo "$(CC) $<"
     $(FE)$(CC) -c $(CFLAGS) -I. $(INCLUDE) $<
diff --git a/src/scripts/Configure-Makefile b/src/scripts/Configure-Makefile
index 1eb79a291..96a6cce22 100755
--- a/src/scripts/Configure-Makefile
+++ b/src/scripts/Configure-Makefile
@@ -247,17 +247,6 @@ then
           yes|YES|y|Y)
          echo >&2 "pcre is no longer supported; migrate to pcre2"
          exit 1
-
-#            cflags=`pcre-config --cflags`
-#            if [ $? -ne 0 ]; then
-#              echo >&2 "*** Missing pcre-config for regular expression support"
-#              exit 1
-#            fi
-#            libs=`pcre-config --libs`
-#            if [ ".$cflags" != "." ]; then
-#              echo "INCLUDE += $cflags"
-#            fi
-#            echo "PCRE_LIBS=$libs"
             ;;
         esac
         ;;
@@ -295,23 +284,32 @@ then
 fi
 rm -f $mftt


+#XXX look for RADIUS in $mft; add a SUPPORT_
+if $egrep -q "^RADIUS_CONFIG_FILE" $mft; then
+ echo "# radius fixup"
+ $egrep -q "^SUPPORT_RADIUS" $mft || echo "SUPPORT_RADIUS=yes" >> $mft
+fi
+
+
# make the lookups Makefile with the definitions
# the auxiliary script generates $look_mf_post from $look_mf_pre

cp ../src/lookups/Makefile $look_mf_pre
../scripts/lookups-Makefile

+# make the Makefiles for routers, transports, auths and miscmods
+#
 while read class classdef names
 do
   cp ../src/$class/Makefile $class/Makefile.predynamic
-  CLASS=$class CLASSDEF=$classdef DRNAMES="$names" ../scripts/drivers-Makefile
+  CLASS=$class CLASSDEF=$classdef DRNAMES="$names" EGREP="$egrep" ../scripts/drivers-Makefile
   mv $class/Makefile.postdynamic $class/Makefile
   rm $class/Makefile.predynamic
 done <<-END
  routers    ROUTER    ACCEPT DNSLOOKUP IPLITERAL IPLOOKUP MANUALROUTE QUERYPROGRAM REDIRECT
  transports TRANSPORT    APPENDFILE AUTOREPLY LMTP PIPE QUEUEFILE SMTP
  auths        AUTH    CRAM_MD5 CYRUS_SASL DOVECOT EXTERNAL GSASL HEIMDAL_GSSAPI PLAINTEXT SPA TLS
- miscmods   SUPPORT    ARC _DKIM DMARC SPF
+ miscmods   SUPPORT    ARC _DKIM DMARC RADIUS SPF
 END


 # See if there is a definition of EXIM_PERL in what we have built so far.
diff --git a/src/scripts/MakeLinks b/src/scripts/MakeLinks
index 481f36fe3..1b272a5c9 100755
--- a/src/scripts/MakeLinks
+++ b/src/scripts/MakeLinks
@@ -79,7 +79,7 @@ mkdir $d
 cd $d
 # Makefile is generated
 for f in README call_pam.c call_pwcheck.c \
-  call_radius.c check_serv_cond.c cyrus_sasl.c cyrus_sasl.h gsasl.c \
+  check_serv_cond.c cyrus_sasl.c cyrus_sasl.h gsasl.c \
   gsasl.h get_data.c get_no64_data.c heimdal_gssapi.c heimdal_gssapi.h \
   cram_md5.c cram_md5.h plaintext.c plaintext.h \
   pwcheck.c pwcheck.h auth-spa.c auth-spa.h dovecot.c dovecot.h spa.c \
@@ -102,6 +102,7 @@ for f in dummy.c \
     pdkim/crypt_ver.h pdkim/pdkim.c pdkim/pdkim.h \
     pdkim/pdkim_hash.h pdkim/signing.c pdkim/signing.h \
     dmarc.c dmarc.h dmarc_api.h \
+    radius.c radius_api.h \
     spf.c spf.h spf_api.h
 do
   ln -s ../../src/$d/$f `basename $f`
diff --git a/src/scripts/drivers-Makefile b/src/scripts/drivers-Makefile
index 085eedbda..de3c239a6 100755
--- a/src/scripts/drivers-Makefile
+++ b/src/scripts/drivers-Makefile
@@ -6,6 +6,7 @@
 class=${CLASS:?}
 classdef=${CLASSDEF:?}
 drnames="${DRNAMES:?}"
+egrep="${EGREP:?}"


# We turn the configure-built build-$foo/$class/Makefile.predynamic into Makefile.
# This is used for router and transport drivers, called from scripts/Configure-Makefile.
@@ -97,19 +98,18 @@ fi
want_dynamic() {
local dyn_name="${1#_}"
local re="(${classdef}|EXPERIMENTAL)_${dyn_name}[ $tab]*=[ $tab]*2"
- #XXX Solaris does not support -E on grep. Must use egrep.
- env | grep -E -q "^$re"
+ env | ${egrep} -q "^$re"
if [ $? -eq 0 ]; then return 0; fi
- grep -E -q "^[ $tab]*$re" "$defs_source"
+ ${egrep} -q "^[ $tab]*$re" "$defs_source"
}

want_not_disabled() {
local want_name="${1#_}"
[ "$local_want_name" = "$1" ] && return 0;
local re="DISABLED_${want_name}[ $tab]*=[ $tab]*."
- env | grep -E -q "^$re"
+ env | ${egrep} -q "^$re"
[ $? -ne 0 ] && return 0
- grep -E -q "^[ $tab]*$re" "$defs_source"
+ ${egrep} -q "^[ $tab]*$re" "$defs_source"
[ $? -ne 0 ] && return 0
return 1
}
@@ -117,9 +117,9 @@ want_not_disabled() {
want_at_all() {
local want_name="$1"
local re="(${classdef}|EXPERIMENTAL)_${want_name}[ $tab]*=[ $tab]*."
- env | grep -E -q "^$re"
+ env | ${egrep} -q "^$re"
if [ $? -eq 0 ]; then return 0; fi
- grep -E -q "^[ $tab]*$re" "$defs_source"
+ ${egrep} -q "^[ $tab]*$re" "$defs_source"
}

# The values of these variables will be emitted into the Makefile.
diff --git a/src/src/config.h.defaults b/src/src/config.h.defaults
index 20a288d66..60aacee5b 100644
--- a/src/src/config.h.defaults
+++ b/src/src/config.h.defaults
@@ -168,8 +168,9 @@ Do not put spaces between # and the 'define'.
#define SUPPORT_TRANSLATE_IP_ADDRESS

/* Required to support dynamic-module build */
-#define SUPPORT_DKIM
#define SUPPORT_ARC
+#define SUPPORT_DKIM
+#define SUPPORT_RADIUS

#define SYSLOG_LOG_PID
#define SYSLOG_LONG_LINES
diff --git a/src/src/exim.h b/src/src/exim.h
index f5043aea9..550f1a7bd 100644
--- a/src/src/exim.h
+++ b/src/src/exim.h
@@ -558,6 +558,9 @@ config.h, mytypes.h, and store.h, so we don't need to mention them explicitly.
#ifdef EXPERIMENTAL_ARC
# include "miscmods/arc_api.h"
#endif
+#ifdef RADIUS_CONFIG_FILE
+# include "miscmods/radius_api.h"
+#endif

 /* The following stuff must follow the inclusion of config.h because it
 requires various things that are set therein. */
diff --git a/src/src/expand.c b/src/src/expand.c
index a41ba98cf..521a30d49 100644
--- a/src/src/expand.c
+++ b/src/src/expand.c
@@ -2775,12 +2775,19 @@ switch(cond_type = identify_operator(&s, &opname))
     #endif  /* SUPPORT_PAM */


     case ECOND_RADIUS:
-    #ifdef RADIUS_CONFIG_FILE
-    rc = auth_call_radius(sub[0], &expand_string_message);
-    goto END_AUTH;
-    #else
-    goto COND_FAILED_NOT_COMPILED;
-    #endif  /* RADIUS_CONFIG_FILE */
+#ifdef RADIUS_CONFIG_FILE
+      {
+      const misc_module_info * mi = misc_mod_find(US"radius", NULL);
+      typedef int (*fn_t)(const uschar *, uschar **);
+      if (!mi)
+    goto COND_FAILED_NOT_COMPILED;
+      rc = (((fn_t *) mi->functions)[RADIUS_AUTH_CALL])
+                      (sub[0], &expand_string_message);
+      goto END_AUTH;
+      }
+#else
+      goto COND_FAILED_NOT_COMPILED;
+#endif  /* RADIUS_CONFIG_FILE */


     case ECOND_LDAPAUTH:
     #ifdef LOOKUP_LDAP
diff --git a/src/src/functions.h b/src/src/functions.h
index deec54590..ac0c31097 100644
--- a/src/src/functions.h
+++ b/src/src/functions.h
@@ -113,7 +113,6 @@ extern void    add_driver_info(driver_info **, const driver_info *, size_t);
 extern void    assert_no_variables(void *, int, const char *, int);
 extern int     auth_call_pam(const uschar *, uschar **);
 extern int     auth_call_pwcheck(uschar *, uschar **);
-extern int     auth_call_radius(const uschar *, uschar **);
 extern int     auth_call_saslauthd(const uschar *, const uschar *,
              const uschar *, const uschar *, uschar **);
 extern int     auth_check_serv_cond(auth_instance *);
diff --git a/src/src/miscmods/Makefile b/src/src/miscmods/Makefile
index a4ffcfc92..a15fd9b38 100644
--- a/src/src/miscmods/Makefile
+++ b/src/src/miscmods/Makefile
@@ -41,13 +41,14 @@ spf.o   spf.so:        $(HDRS) spf.h spf.c


 dkim.o:
         @echo "$(CC) dkim.c dkim_transport.c pdkim.c signing.c"
-        $(FE)$(CC) -r $(LDFLAGS_PARTIAL) $(CFLAGS) $(INCLUDE) \
-            dkim.c dkim_transport.c pdkim.c signing.c -o $@
+        $(FE)$(CC) -r $(LDFLAGS_PARTIAL) -o $@ $(CFLAGS) $(INCLUDE) \
+            dkim.c dkim_transport.c pdkim.c signing.c


 dkim.so:
         @echo "$(CC) -shared dkim.c dkim_transport.c pdkim.c signing.c"
-        $(FE)$(CC) $(SUPPORT_$*_INCLUDE) $(SUPPORT_$*_LIBS) \
-            -DDYNLOOKUP $(CFLAGS_DYNAMIC) $(CFLAGS) $(INCLUDE) \
-            $(DLFLAGS) dkim.c dkim_transport.c pdkim.c signing.c -o $@
+        $(FE)$(CC) -DDYNLOOKUP $(CFLAGS_DYNAMIC) -o $@ \
+            $(SUPPORT_$*_INCLUDE) $(SUPPORT_$*_LIBS) \
+            $(CFLAGS) $(INCLUDE) $(DLFLAGS) \
+            dkim.c dkim_transport.c pdkim.c signing.c


 # End
diff --git a/src/src/miscmods/arc.c b/src/src/miscmods/arc.c
index db546e1ab..a48d1987b 100644
--- a/src/src/miscmods/arc.c
+++ b/src/src/miscmods/arc.c
@@ -2151,7 +2151,7 @@ static var_entry arc_variables[] = {
 misc_module_info arc_module_info =
 {
   .name =        US"arc",
-# if SUPPORT_SPF==2
+# ifdef DYNLOOKUP
   .dyn_magic =        MISC_MODULE_MAGIC,
 # endif
   .init =        arc_init,
diff --git a/src/src/miscmods/dkim.c b/src/src/miscmods/dkim.c
index 632ff4813..40339d100 100644
--- a/src/src/miscmods/dkim.c
+++ b/src/src/miscmods/dkim.c
@@ -1359,7 +1359,7 @@ static var_entry dkim_variables[] = {


 misc_module_info dkim_module_info = {
   .name =        US"dkim",
-# if SUPPORT_DKIM==2
+# ifdef DYNLOOKUP
   .dyn_magic =        MISC_MODULE_MAGIC,
 # endif
   .init =        dkim_exim_init,
diff --git a/src/src/miscmods/dmarc.c b/src/src/miscmods/dmarc.c
index e192bda1b..161bfeece 100644
--- a/src/src/miscmods/dmarc.c
+++ b/src/src/miscmods/dmarc.c
@@ -806,7 +806,7 @@ static var_entry dmarc_variables[] = {
 misc_module_info dmarc_module_info =
 {
   .name =        US"dmarc",
-# if SUPPORT_SPF==2
+# ifdef DYNLOOKUP
   .dyn_magic =        MISC_MODULE_MAGIC,
 # endif
   .init =        dmarc_init,
diff --git a/src/src/auths/call_radius.c b/src/src/miscmods/radius.c
similarity index 94%
rename from src/src/auths/call_radius.c
rename to src/src/miscmods/radius.c
index 65882c108..61ca6ea3a 100644
--- a/src/src/auths/call_radius.c
+++ b/src/src/miscmods/radius.c
@@ -67,7 +67,7 @@ Returns:   OK if authentication succeeded
            ERROR some other error condition
 */


-int
+static int
auth_call_radius(const uschar *s, uschar **errptr)
{
uschar *user;
@@ -219,6 +219,26 @@ return result;
#endif /* RADIUS_LIB_RADLIB */
}

+
+
+/******************************************************************************/
+/* Module API */
+
+static void * rad_functions[] = {
+  [RADIUS_AUTH_CALL] =    auth_call_radius,
+};
+
+misc_module_info rad_module_info =
+{
+  .name =        US"radius",
+# ifdef DYNLOOKUP
+  .dyn_magic =        MISC_MODULE_MAGIC,
+# endif
+
+  .functions =        rad_functions,
+  .functions_count =    nelem(rad_functions),
+};
+
 #endif  /* RADIUS_CONFIG_FILE */


 /* End of call_radius.c */
diff --git a/src/src/miscmods/spf.c b/src/src/miscmods/spf.c
index 14937e799..17c1a3602 100644
--- a/src/src/miscmods/spf.c
+++ b/src/src/miscmods/spf.c
@@ -585,7 +585,7 @@ static var_entry spf_variables[] = {
 misc_module_info spf_module_info =
 {
   .name =        US"spf",
-# if SUPPORT_SPF==2
+# ifdef DYNLOOKUP
   .dyn_magic =        MISC_MODULE_MAGIC,
 # endif
   .init =        spf_init,


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