Simple module to fix WiMAX Calling-Station-Id

diff --git a/src/modules/rlm_wimax/Makefile b/src/modules/rlm_wimax/Makefile
new file mode 100644 (file)
index 0000000..aafc790
--- /dev/null
+++ b/src/modules/rlm_wimax/Makefile
@@ -0,0 +1,11 @@
+TARGET         = rlm_wimax
+SRCS           = rlm_wimax.c
+HEADERS                = 
+RLM_CFLAGS     =
+RLM_LIBS       = 
+
+include ../rules.mak
+
+$(STATIC_OBJS): $(HEADERS)
+
+$(DYNAMIC_OBJS): $(HEADERS)

diff --git a/src/modules/rlm_wimax/rlm_wimax.c b/src/modules/rlm_wimax/rlm_wimax.c
new file mode 100644 (file)
index 0000000..5322dc6
--- /dev/null
+++ b/src/modules/rlm_wimax/rlm_wimax.c
@@ -0,0 +1,116 @@
+/*
+ * rlm_wimax.c
+ *
+ * Version:    $Id$
+ *
+ * Copyright (C) 2008 Alan DeKok <aland@networkradius.com>
+ *
+ * THE SOFTWARE IS PROVIDED "AS IS", WITHOUT WARRANTY OF ANY KIND,
+ * EXPRESS OR IMPLIED, INCLUDING BUT NOT LIMITED TO THE WARRANTIES OF
+ * MERCHANTABILITY, FITNESS FOR A PARTICULAR PURPOSE AND NONINFRINGEMENT
+ * OF THIRD PARTY RIGHTS. IN NO EVENT SHALL THE AUTHORS OR COPYRIGHT
+ * HOLDERS BE LIABLE FOR ANY CLAIM, DAMAGES OR OTHER LIABILITY, WHETHER
+ * IN AN ACTION OF CONTRACT, TORT OR OTHERWISE, ARISING FROM, OUT OF OR
+ * IN CONNECTION WITH THE SOFTWARE OR THE USE OR OTHER DEALINGS IN THE
+ * SOFTWARE.
+ */
+
+#include <freeradius-devel/ident.h>
+RCSID("$Id$")
+
+#include <freeradius-devel/radiusd.h>
+#include <freeradius-devel/modules.h>
+
+
+/*
+ *     Find the named user in this modules database.  Create the set
+ *     of attribute-value pairs to check and reply with for this user
+ *     from the database. The authentication code only needs to check
+ *     the password, the rest is done here.
+ */
+static int wimax_authorize(void *instance, REQUEST *request)
+{
+       VALUE_PAIR *vp;
+
+       /* quiet the compiler */
+       instance = instance;
+       request = request;
+
+       /*
+        *      Fix Calling-Station-Id.  Damn you, WiMAX!
+        */
+       vp =  pairfind(request->packet->vps, PW_CALLING_STATION_ID);
+       if (vp && (vp->length == 6)) {
+               int i;
+               uint8_t buffer[6];
+
+               memcpy(buffer, vp->vp_octets, 6);
+
+               /*
+                *      RFC 3580 Section 3.20 says this is the preferred
+                *      format.  Everyone *SANE* is using this format,
+                *      so we fix it here.
+                */
+               for (i = 0; i < 6; i++) {
+                       fr_bin2hex(&buffer[i], &vp->vp_strvalue[i * 3], 1);
+                       vp->vp_strvalue[(i * 3) + 2] = '-';
+               }
+
+               vp->vp_strvalue[(5*3)+2] = '\0';
+               vp->length = (5*3)+2;
+
+               DEBUG2("rlm_wimax: Fixing WiMAX binary Calling-Station-Id to %s",
+                      buffer);
+       }
+
+       return RLM_MODULE_OK;
+}
+
+
+/*
+ *     Massage the request before recording it or proxying it
+ */
+static int wimax_preacct(void *instance, REQUEST *request)
+{
+       return wimax_authorize(instance, request);
+}
+
+/*
+ *     Write accounting information to this modules database.
+ */
+static int wimax_accounting(void *instance, REQUEST *request)
+{
+       /* quiet the compiler */
+       instance = instance;
+       request = request;
+
+       return RLM_MODULE_OK;
+}
+
+
+/*
+ *     The module name should be the only globally exported symbol.
+ *     That is, everything else should be 'static'.
+ *
+ *     If the module needs to temporarily modify it's instantiation
+ *     data, the type should be changed to RLM_TYPE_THREAD_UNSAFE.
+ *     The server will then take care of ensuring that the module
+ *     is single-threaded.
+ */
+module_t rlm_wimax = {
+       RLM_MODULE_INIT,
+       "wimax",
+       RLM_TYPE_THREAD_SAFE,           /* type */
+       NULL,                           /* instantiation */
+       NULL,                           /* detach */
+       {
+               NULL,                   /* authentication */
+               wimax_authorize,        /* authorization */
+               wimax_preacct,          /* preaccounting */
+               wimax_accounting,       /* accounting */
+               NULL,                   /* checksimul */
+               NULL,                   /* pre-proxy */
+               NULL,                   /* post-proxy */
+               NULL                    /* post-auth */
+       },
+};