#include "gssapiP_eap.h"
+#include <xercesc/util/Base64.hpp>
+
/* stuff that should be provided by libradsec/libfreeradius-radius */
#define VENDORATTR(vendor, attr) (((vendor) << 16) | (attr))
}
bool
-gss_eap_radius_attr_provider::setAttribute(int complete,
+gss_eap_radius_attr_provider::setAttribute(int complete GSSEAP_UNUSED,
uint32_t attrid,
const gss_buffer_t value)
{
gss_any_t
gss_eap_radius_attr_provider::mapToAny(int authenticated,
- gss_buffer_t type_id) const
+ gss_buffer_t type_id GSSEAP_UNUSED) const
{
if (authenticated && !m_authenticated)
return (gss_any_t)NULL;
}
void
-gss_eap_radius_attr_provider::releaseAnyNameMapping(gss_buffer_t type_id,
+gss_eap_radius_attr_provider::releaseAnyNameMapping(gss_buffer_t type_id GSSEAP_UNUSED,
gss_any_t input) const
{
- pairfree((VALUE_PAIR **)&input);
+ VALUE_PAIR *vp = (VALUE_PAIR *)input;
+ pairfree(&vp);
}
bool
gss_eap_radius_attr_provider::init(void)
{
+ struct rs_context *radContext;
+
gss_eap_attr_ctx::registerProvider(ATTR_TYPE_RADIUS,
"urn:ietf:params:gss-eap:radius-avp",
createAttrContext);
+
+#if 1
+ /*
+ * This hack is necessary in order to force the loading of the global
+ * dictionary, otherwise accepting reauthentication tokens fails unless
+ * the acceptor has already accepted a normal authentication token.
+ */
+ if (rs_context_create(&radContext) != 0)
+ return false;
+
+ if (rs_context_read_config(radContext, RS_CONFIG_FILE) != 0) {
+ rs_context_destroy(radContext);
+ return false;
+ }
+
+ if (rs_context_init_freeradius_dict(radContext, NULL)) {
+ rs_context_destroy(radContext);
+ return false;
+ }
+
+ rs_context_destroy(radContext);
+#endif
+
return true;
}
VALUE_PAIR *vp;
size_t n = remain;
- if (n > MAX_STRING_LEN)
- n = MAX_STRING_LEN;
+ /*
+ * There's an extra byte of padding; RADIUS AVPs can only
+ * be 253 octets.
+ */
+ if (n >= MAX_STRING_LEN)
+ n = MAX_STRING_LEN - 1;
vp = paircreate(attrid, PW_TYPE_OCTETS);
if (vp == NULL) {
gssEapRadiusAttrProviderFinalize(OM_uint32 *minor)
{
gss_eap_radius_attr_provider::finalize();
- return GSS_S_COMPLETE;
-}
-
-/*
- * Encoding is:
- * 4 octet NBO attribute ID | 4 octet attribute length | attribute data
- */
-static size_t
-avpSize(const VALUE_PAIR *vp)
-{
- size_t size = 4 + 1;
-
- if (vp != NULL)
- size += vp->length;
- return size;
+ *minor = 0;
+ return GSS_S_COMPLETE;
}
-static bool
-avpExport(const VALUE_PAIR *vp,
- unsigned char **pBuffer,
- size_t *pRemain)
+static DDF
+avpMarshall(const VALUE_PAIR *vp)
{
- unsigned char *p = *pBuffer;
- size_t remain = *pRemain;
+ DDF obj(NULL);
- assert(remain >= avpSize(vp));
+ obj.addmember("type").integer(vp->attribute);
- store_uint32_be(vp->attribute, p);
+ assert(vp->length <= MAX_STRING_LEN);
switch (vp->type) {
case PW_TYPE_INTEGER:
case PW_TYPE_IPADDR:
case PW_TYPE_DATE:
- p[4] = 4;
- store_uint32_be(vp->lvalue, p + 5);
+ obj.addmember("value").integer(vp->lvalue);
break;
- default:
- assert(vp->length <= MAX_STRING_LEN);
- p[4] = (uint8_t)vp->length;
- memcpy(p + 5, vp->vp_octets, vp->length);
+ case PW_TYPE_STRING:
+ obj.addmember("value").string(vp->vp_strvalue);
break;
- }
+ default: {
+ XMLSize_t len;
+ XMLByte *b64 = xercesc::Base64::encode(vp->vp_octets, vp->length, &len);
- *pBuffer += 5 + p[4];
- *pRemain -= 5 + p[4];
+ if (b64[len - 1] == '\n')
+ b64[--len] = '\0'; /* XXX there may be embedded newlines */
- return true;
+ obj.addmember("value").string((char *)b64);
+ delete b64;
+ break;
+ }
+ }
+ return obj;
}
static bool
-avpImport(VALUE_PAIR **pVp,
- unsigned char **pBuffer,
- size_t *pRemain)
+avpUnmarshall(VALUE_PAIR **pVp, DDF &obj)
{
- unsigned char *p = *pBuffer;
- size_t remain = *pRemain;
VALUE_PAIR *vp = NULL;
DICT_ATTR *da;
uint32_t attrid;
- if (remain < avpSize(NULL))
- goto fail;
-
- attrid = load_uint32_be(p);
- p += 4;
- remain -= 4;
+ attrid = obj["type"].integer();
da = dict_attrbyvalue(attrid);
- if (da == NULL)
- goto fail;
-
- vp = pairalloc(da);
+ if (da != NULL) {
+ vp = pairalloc(da);
+ } else {
+ vp = paircreate(attrid, PW_TYPE_STRING);
+ }
if (vp == NULL) {
throw new std::bad_alloc;
goto fail;
}
- if (remain < p[0])
- goto fail;
-
switch (vp->type) {
case PW_TYPE_INTEGER:
case PW_TYPE_IPADDR:
case PW_TYPE_DATE:
- if (p[0] != 4)
- goto fail;
-
vp->length = 4;
- vp->lvalue = load_uint32_be(p + 1);
- p += 5;
- remain -= 5;
+ vp->lvalue = obj["value"].integer();;
break;
- case PW_TYPE_STRING:
- /* check enough room to NUL terminate */
- if (p[0] == MAX_STRING_LEN)
+ case PW_TYPE_STRING: {
+ const char *str = obj["value"].string();
+ size_t len = strlen(str);
+ if (str == NULL || len >= MAX_STRING_LEN)
goto fail;
- else
- /* fallthrough */
- default:
- if (p[0] > MAX_STRING_LEN)
- goto fail;
-
- vp->length = (uint32_t)p[0];
- memcpy(vp->vp_octets, p + 1, vp->length);
- if (vp->type == PW_TYPE_STRING)
- vp->vp_strvalue[vp->length] = '\0';
+ vp->length = len;
+ memcpy(vp->vp_strvalue, str, len + 1);
+ break;
+ }
+ case PW_TYPE_OCTETS:
+ default: {
+ XMLSize_t len;
+ const XMLByte *b64 = (const XMLByte *)obj["value"].string();
+ XMLByte *data = xercesc::Base64::decode(b64, &len);
+ if (data == NULL || len >= MAX_STRING_LEN) {
+ delete data;
+ goto fail;
+ }
- p += 1 + vp->length;
- remain -= 1 + vp->length;
+ vp->length = len;
+ memcpy(vp->vp_octets, data, len);
+ vp->vp_octets[len] = '\0';
+ delete data;
break;
}
+ }
*pVp = vp;
- *pBuffer = p;
- *pRemain = remain;
return true;
fail:
if (vp != NULL)
pairbasicfree(vp);
+ *pVp = NULL;
return false;
}
+const char *
+gss_eap_radius_attr_provider::marshallingKey(void) const
+{
+ return "radius";
+}
+
bool
-gss_eap_radius_attr_provider::initFromBuffer(const gss_eap_attr_ctx *ctx,
- const gss_buffer_t buffer)
+gss_eap_radius_attr_provider::unmarshallAndInit(const gss_eap_attr_ctx *ctx,
+ DDF &obj)
{
- unsigned char *p = (unsigned char *)buffer->value;
- size_t remain = buffer->length;
VALUE_PAIR **pNext = &m_vps;
- if (!gss_eap_attr_provider::initFromBuffer(ctx, buffer))
+ if (!gss_eap_attr_provider::unmarshallAndInit(ctx, obj))
return false;
- do {
- VALUE_PAIR *attr;
+ DDF attrs = obj["attributes"];
+ DDF attr = attrs.first();
- if (!avpImport(&attr, &p, &remain))
+ while (!attr.isnull()) {
+ VALUE_PAIR *vp;
+
+ if (!avpUnmarshall(&vp, attr))
return false;
- *pNext = attr;
- pNext = &attr->next;
- } while (remain != 0);
+ *pNext = vp;
+ pNext = &vp->next;
+
+ attr = attrs.next();
+ }
return true;
}
-void
-gss_eap_radius_attr_provider::exportToBuffer(gss_buffer_t buffer) const
+DDF
+gss_eap_radius_attr_provider::marshall(void) const
{
- VALUE_PAIR *vp;
- unsigned char *p;
- size_t remain = 0;
-
- for (vp = m_vps; vp != NULL; vp = vp->next) {
- remain += avpSize(vp);
- }
+ DDF obj(NULL);
+ DDF attrs = obj.structure().addmember("attributes").list();
- buffer->value = GSSEAP_MALLOC(remain);
- if (buffer->value == NULL) {
- throw new std::bad_alloc;
- return;
- }
- buffer->length = remain;
-
- p = (unsigned char *)buffer->value;
-
- for (vp = m_vps; vp != NULL; vp = vp->next) {
- avpExport(vp, &p, &remain);
+ for (VALUE_PAIR *vp = m_vps; vp != NULL; vp = vp->next) {
+ DDF attr = avpMarshall(vp);
+ attrs.add(attr);
}
- assert(remain == 0);
+ return obj;
}
time_t
*minor = ERROR_TABLE_BASE_rse + code;
- gssEapSaveStatusInfo(*minor, "%s", rs_err_msg(err, 0));
+ gssEapSaveStatusInfo(*minor, "%s", rs_err_msg(err));
rs_err_free(err);
return GSS_S_FAILURE;
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