Description: Adds support for drac
Origin: http://sourceforge.jp/projects/dovecot2-drac/releases/53176
Author: Timo Sirainen <tss@iki.fi>

--- /dev/null
+++ b/src/plugins/drac/Makefile
@@ -0,0 +1,20 @@
+DOVDIR:=../../..
+LIBS:=-ldrac
+
+local_CFLAGS=-Wall -W -shared -fPIC -DHAVE_CONFIG_H
+INC=-I$(DOVDIR) \
+	-I$(DOVDIR)/src/lib \
+	-I$(DOVDIR)/src/lib-index \
+	-I$(DOVDIR)/src/lib-mail \
+	-I$(DOVDIR)/src/lib-storage \
+	-I$(DOVDIR)/src/lib-storage/index \
+	-I$(DOVDIR)/src/lib-storage/index/maildir \
+	-I../../lib
+
+all: drac_plugin.so
+
+drac_plugin.so: drac-plugin.c
+	$(CC) $(CFLAGS) $(local_CFLAGS) $(INC) $(LDFLAGS) $< -o $@ $(LIBS)
+
+clean:
+	@rm -f *.so *.o
--- /dev/null
+++ b/src/plugins/drac/drac-plugin.c
@@ -0,0 +1,108 @@
+/*
+ *
+ * dovecot plugin for DRAC authentication
+ *
+ * Copyright (C) 2011 DesigNET, INC.
+ *
+ * $Id: drac-plugin.c,v 1.1.1.1 2011/09/09 08:04:34 usuda Exp $
+ *
+ * based:
+ *   http://dovecot.org/patches/1.1/drac.c
+ */
+#include "lib.h"
+#include "net.h"
+#include "ioloop.h"
+#include "mail-user.h"
+#include "mail-storage-private.h"
+#include <stdlib.h>
+#include <string.h>
+
+/* default parameters */
+#define DRAC_TIMEOUT_SECS	(60)
+#define DRAC_HOST		"localhost"
+
+
+/* libdrac function */
+int dracauth(char *, unsigned long, char **);
+
+const char *drac_plugin_version = DOVECOT_VERSION;
+
+static struct timeout *to_drac = NULL;
+static const char *drachost = NULL; /* dracd host */
+static unsigned long in_ip = 0; /* remote ip address */
+static unsigned long dractout = 0; /* drac timeout secs */
+
+static void drac_timeout(void *context ATTR_UNUSED)
+{
+    char *err;
+
+    if(dracauth((char *)drachost, in_ip, &err) != 0) {
+        i_error("%s: dracauth() failed: %s", __FUNCTION__, err);
+    }
+}
+
+static void drac_mail_user_created(struct mail_user *user)
+{
+    const char *dractout_str;
+    char addrname[256];
+    char *ep;
+
+    /* check address family */
+    if(user->remote_ip->family != AF_INET) {
+        if(inet_ntop(user->remote_ip->family, &user->remote_ip->u,
+           addrname, sizeof(addrname)-1) == NULL) {
+            strcpy(addrname, "<unknown>");
+        }
+        i_error("%s: Only IPv4 addresses are supported (%s)", __FUNCTION__,
+                addrname);
+    } else {
+        /* get remote IPv4 address... uum... */
+        memcpy(&in_ip, &user->remote_ip->u, sizeof(in_ip));
+
+        /* get DRAC server name */
+        drachost = mail_user_plugin_getenv(user, "dracdserver");
+        if(drachost == NULL) {
+            drachost = DRAC_HOST;
+        }
+
+        /* get timeout secs */
+        dractout_str = mail_user_plugin_getenv(user, "dracdtimeout");
+        if(dractout_str == NULL) {
+            dractout = DRAC_TIMEOUT_SECS;
+        } else {
+            dractout = strtoul(dractout_str, &ep, 10);
+            /* bad format -> use default value */
+            if(ep != NULL && *ep != '\0') {
+                i_warning("%s: bad dracdtimeout (%s). using default %d",
+                          __FUNCTION__, dractout_str, DRAC_TIMEOUT_SECS);
+                dractout = DRAC_TIMEOUT_SECS;
+            }
+        }
+        i_debug("%s: dracdserver=%s, timeout=%ldsecs", __FUNCTION__,
+               drachost, dractout);
+
+        /* connect to DRAC server */
+        drac_timeout(NULL);
+        to_drac = timeout_add(1000*dractout, drac_timeout, NULL);
+    }
+}
+
+static struct mail_storage_hooks drac_mail_storage_hooks = {
+    .mail_user_created = drac_mail_user_created,
+};
+
+void drac_plugin_init(struct module *module)
+{
+    mail_storage_hooks_add(module, &drac_mail_storage_hooks);
+    i_debug("%s called", __FUNCTION__);
+}
+
+void drac_plugin_deinit(void)
+{
+    if(to_drac != NULL) {
+        timeout_remove(&to_drac);
+        to_drac = NULL;
+    }
+    mail_storage_hooks_remove(&drac_mail_storage_hooks);
+    i_debug("%s called", __FUNCTION__);
+}