Reintroduced ietf_attr_fwd_enabled()
authorAndreas Steffen <andreas.steffen@strongswan.org>
Fri, 24 Jul 2015 14:49:31 +0000 (16:49 +0200)
committerAndreas Steffen <andreas.steffen@strongswan.org>
Tue, 18 Aug 2015 19:25:39 +0000 (21:25 +0200)
src/libimcv/Makefile.am
src/libimcv/ietf/ietf_attr.c
src/libimcv/ietf/ietf_attr_fwd_enabled.c [new file with mode: 0644]
src/libimcv/ietf/ietf_attr_fwd_enabled.h [new file with mode: 0644]
src/libimcv/pwg/pwg_attr.c

index 6923aac..7683da3 100644 (file)
@@ -42,6 +42,7 @@ libimcv_la_SOURCES = \
        ietf/ietf_attr.h ietf/ietf_attr.c \
        ietf/ietf_attr_assess_result.h ietf/ietf_attr_assess_result.c \
        ietf/ietf_attr_attr_request.h ietf/ietf_attr_attr_request.c \
+       ietf/ietf_attr_fwd_enabled.h ietf/ietf_attr_fwd_enabled.c \
        ietf/ietf_attr_installed_packages.h ietf/ietf_attr_installed_packages.c \
        ietf/ietf_attr_numeric_version.h ietf/ietf_attr_numeric_version.c \
        ietf/ietf_attr_op_status.h ietf/ietf_attr_op_status.c \
index 575cc72..38b777f 100644 (file)
@@ -16,6 +16,7 @@
 #include "ietf_attr.h"
 #include "ietf/ietf_attr_assess_result.h"
 #include "ietf/ietf_attr_attr_request.h"
+#include "ietf/ietf_attr_fwd_enabled.h"
 #include "ietf/ietf_attr_installed_packages.h"
 #include "ietf/ietf_attr_numeric_version.h"
 #include "ietf/ietf_attr_op_status.h"
@@ -73,6 +74,8 @@ pa_tnc_attr_t* ietf_attr_create_from_data(u_int32_t type, size_t length,
                case IETF_ATTR_REMEDIATION_INSTRUCTIONS:
                        return ietf_attr_remediation_instr_create_from_data(length, value);
                case IETF_ATTR_FORWARDING_ENABLED:
+                       return ietf_attr_fwd_enabled_create_from_data(length, value,
+                                                                       pen_type_create(PEN_IETF, type));
                case IETF_ATTR_FACTORY_DEFAULT_PWD_ENABLED:
                        return generic_attr_bool_create_from_data(length, value,
                                                                        pen_type_create(PEN_IETF, type));
diff --git a/src/libimcv/ietf/ietf_attr_fwd_enabled.c b/src/libimcv/ietf/ietf_attr_fwd_enabled.c
new file mode 100644 (file)
index 0000000..876a740
--- /dev/null
@@ -0,0 +1,242 @@
+/*
+ * Copyright (C) 2012-2015 Andreas Steffen
+ * HSR Hochschule fuer Technik Rapperswil
+ *
+ * This program is free software; you can redistribute it and/or modify it
+ * under the terms of the GNU General Public License as published by the
+ * Free Software Foundation; either version 2 of the License, or (at your
+ * option) any later version.  See <http://www.fsf.org/copyleft/gpl.txt>.
+ *
+ * This program is distributed in the hope that it will be useful, but
+ * WITHOUT ANY WARRANTY; without even the implied warranty of MERCHANTABILITY
+ * or FITNESS FOR A PARTICULAR PURPOSE.  See the GNU General Public License
+ * for more details.
+ */
+
+#include "ietf_attr_fwd_enabled.h"
+
+#include <pa_tnc/pa_tnc_msg.h>
+#include <bio/bio_writer.h>
+#include <bio/bio_reader.h>
+#include <utils/debug.h>
+
+typedef struct private_ietf_attr_fwd_enabled_t private_ietf_attr_fwd_enabled_t;
+
+/**
+ * PA-TNC Forwarding Enabled type  (see section 4.2.11 of RFC 5792)
+ *
+ *                       1                   2                   3
+ *   0 1 2 3 4 5 6 7 8 9 0 1 2 3 4 5 6 7 8 9 0 1 2 3 4 5 6 7 8 9 0 1
+ *  +-+-+-+-+-+-+-+-+-+-+-+-+-+-+-+-+-+-+-+-+-+-+-+-+-+-+-+-+-+-+-+-+
+ *  |                        Forwarding Enabled                     |
+ *  +-+-+-+-+-+-+-+-+-+-+-+-+-+-+-+-+-+-+-+-+-+-+-+-+-+-+-+-+-+-+-+-+
+ */
+
+#define FORWARDING_ENABLED_SIZE                4
+
+/**
+ * Private data of an ietf_attr_fwd_enabled_t object.
+ */
+struct private_ietf_attr_fwd_enabled_t {
+
+       /**
+        * Public members of ietf_attr_fwd_enabled_t
+        */
+       ietf_attr_fwd_enabled_t public;
+
+       /**
+        * Vendor-specific attribute type
+        */
+       pen_type_t type;
+
+       /**
+        * Length of attribute value
+        */
+       size_t length;
+
+       /**
+        * Attribute value or segment
+        */
+       chunk_t value;
+
+       /**
+        * Noskip flag
+        */
+       bool noskip_flag;
+
+       /**
+        * Forwarding Enabled status
+        */
+       os_fwd_status_t fwd_status;
+
+       /**
+        * Reference count
+        */
+       refcount_t ref;
+};
+
+METHOD(pa_tnc_attr_t, get_type, pen_type_t,
+       private_ietf_attr_fwd_enabled_t *this)
+{
+       return this->type;
+}
+
+METHOD(pa_tnc_attr_t, get_value, chunk_t,
+       private_ietf_attr_fwd_enabled_t *this)
+{
+       return this->value;
+}
+
+METHOD(pa_tnc_attr_t, get_noskip_flag, bool,
+       private_ietf_attr_fwd_enabled_t *this)
+{
+       return this->noskip_flag;
+}
+
+METHOD(pa_tnc_attr_t, set_noskip_flag,void,
+       private_ietf_attr_fwd_enabled_t *this, bool noskip)
+{
+       this->noskip_flag = noskip;
+}
+
+METHOD(pa_tnc_attr_t, build, void,
+       private_ietf_attr_fwd_enabled_t *this)
+{
+       bio_writer_t *writer;
+
+       if (this->value.ptr)
+       {
+               return;
+       }
+       writer = bio_writer_create(FORWARDING_ENABLED_SIZE);
+       writer->write_uint32(writer, this->fwd_status);
+
+       this->value = writer->extract_buf(writer);
+       this->length = this->value.len;
+       writer->destroy(writer);
+}
+
+METHOD(pa_tnc_attr_t, process, status_t,
+       private_ietf_attr_fwd_enabled_t *this, u_int32_t *offset)
+{
+       bio_reader_t *reader;
+       u_int32_t fwd_status;
+
+       *offset = 0;
+
+       if (this->value.len < this->length)
+       {
+               return NEED_MORE;
+       }
+       if (this->value.len != FORWARDING_ENABLED_SIZE)
+       {
+               DBG1(DBG_TNC, "incorrect size for IETF forwarding enabled attribute");
+               return FAILED;
+       }
+       reader = bio_reader_create(this->value);
+       reader->read_uint32(reader, &fwd_status);
+       reader->destroy(reader);
+
+       if (fwd_status > OS_FWD_UNKNOWN)
+       {
+               DBG1(DBG_TNC, "IETF forwarding enabled field has unknown value %u",
+                                          fwd_status);
+               return FAILED;
+       }
+       this->fwd_status = fwd_status;
+
+       return SUCCESS;
+}
+
+METHOD(pa_tnc_attr_t, add_segment, void,
+       private_ietf_attr_fwd_enabled_t *this, chunk_t segment)
+{
+       this->value = chunk_cat("mc", this->value, segment);
+}
+
+METHOD(pa_tnc_attr_t, get_ref, pa_tnc_attr_t*,
+       private_ietf_attr_fwd_enabled_t *this)
+{
+       ref_get(&this->ref);
+       return &this->public.pa_tnc_attribute;
+}
+
+METHOD(pa_tnc_attr_t, destroy, void,
+       private_ietf_attr_fwd_enabled_t *this)
+{
+       if (ref_put(&this->ref))
+       {
+               free(this->value.ptr);
+               free(this);
+       }
+}
+
+METHOD(ietf_attr_fwd_enabled_t, get_status, os_fwd_status_t,
+       private_ietf_attr_fwd_enabled_t *this)
+{
+       return this->fwd_status;
+}
+
+/**
+ * Described in header.
+ */
+pa_tnc_attr_t *ietf_attr_fwd_enabled_create(os_fwd_status_t fwd_status,
+                                                                                       pen_type_t type)
+{
+       private_ietf_attr_fwd_enabled_t *this;
+
+       INIT(this,
+               .public = {
+                       .pa_tnc_attribute = {
+                               .get_type = _get_type,
+                               .get_value = _get_value,
+                               .get_noskip_flag = _get_noskip_flag,
+                               .set_noskip_flag = _set_noskip_flag,
+                               .build = _build,
+                               .process = _process,
+                               .add_segment = _add_segment,
+                               .get_ref = _get_ref,
+                               .destroy = _destroy,
+                       },
+                       .get_status = _get_status,
+               },
+               .type = type,
+               .fwd_status = fwd_status,
+               .ref = 1,
+       );
+
+       return &this->public.pa_tnc_attribute;
+}
+
+/**
+ * Described in header.
+ */
+pa_tnc_attr_t *ietf_attr_fwd_enabled_create_from_data(size_t length,
+                                                                               chunk_t data, pen_type_t type)
+{
+       private_ietf_attr_fwd_enabled_t *this;
+
+       INIT(this,
+               .public = {
+                       .pa_tnc_attribute = {
+                               .get_type = _get_type,
+                               .get_value = _get_value,
+                               .get_noskip_flag = _get_noskip_flag,
+                               .set_noskip_flag = _set_noskip_flag,
+                               .build = _build,
+                               .process = _process,
+                               .add_segment = _add_segment,
+                               .get_ref = _get_ref,
+                               .destroy = _destroy,
+                       },
+                       .get_status = _get_status,
+               },
+               .type = type,
+               .length = length,
+               .value = chunk_clone(data),
+               .ref = 1,
+       );
+
+       return &this->public.pa_tnc_attribute;
+}
+
diff --git a/src/libimcv/ietf/ietf_attr_fwd_enabled.h b/src/libimcv/ietf/ietf_attr_fwd_enabled.h
new file mode 100644 (file)
index 0000000..39abb0a
--- /dev/null
@@ -0,0 +1,69 @@
+/*
+ * Copyright (C) 2012-2015 Andreas Steffen
+ * HSR Hochschule fuer Technik Rapperswil
+ *
+ * This program is free software; you can redistribute it and/or modify it
+ * under the terms of the GNU General Public License as published by the
+ * Free Software Foundation; either version 2 of the License, or (at your
+ * option) any later version.  See <http://www.fsf.org/copyleft/gpl.txt>.
+ *
+ * This program is distributed in the hope that it will be useful, but
+ * WITHOUT ANY WARRANTY; without even the implied warranty of MERCHANTABILITY
+ * or FITNESS FOR A PARTICULAR PURPOSE.  See the GNU General Public License
+ * for more details.
+ */
+
+/**
+ * @defgroup ietf_attr_fwd_enabled ietf_attr_fwd_enabled
+ * @{ @ingroup ietf_attr
+ */
+
+#ifndef IETF_ATTR_FWD_ENABLED_H_
+#define IETF_ATTR_FWD_ENABLED_H_
+
+typedef struct ietf_attr_fwd_enabled_t ietf_attr_fwd_enabled_t;
+
+#include "ietf_attr.h"
+#include "pa_tnc/pa_tnc_attr.h"
+#include "os_info/os_info.h"
+
+/**
+ * Class implementing the IETF PA-TNC Forwarding Enabled attribute.
+ *
+ */
+struct ietf_attr_fwd_enabled_t {
+
+       /**
+        * Public PA-TNC attribute interface
+        */
+       pa_tnc_attr_t pa_tnc_attribute;
+
+       /**
+        * Gets the Forwarding Enabled status
+        *
+        * @return                              Forwarding Enabled status
+        */
+       os_fwd_status_t (*get_status)(ietf_attr_fwd_enabled_t *this);
+
+};
+
+/**
+ * Creates an ietf_attr_fwd_enabled_t object
+ *
+ * @param fwd_status           Forwarding Enabled status
+ * @param type                         Vendor ID / Attribute Type
+ */
+pa_tnc_attr_t* ietf_attr_fwd_enabled_create(os_fwd_status_t fwd_status,
+                                                                                       pen_type_t type);
+
+/**
+ * Creates an ietf_attr_fwd_enabled_t object from received data
+ *
+ * @param length                       Total length of attribute value
+ * @param value                                Unparsed attribute value (might be a segment)
+ * @param type                         Vendor ID / Attribute Type
+ */
+pa_tnc_attr_t* ietf_attr_fwd_enabled_create_from_data(size_t length,
+                                                                               chunk_t value, pen_type_t type);
+
+#endif /** IETF_ATTR_FWD_ENABLED_H_ @}*/
index f40eb76..8a2eb28 100644 (file)
@@ -18,6 +18,7 @@
 #include "generic/generic_attr_bool.h"
 #include "generic/generic_attr_chunk.h"
 #include "generic/generic_attr_string.h"
+#include "ietf/ietf_attr_fwd_enabled.h"
 #include "ietf/ietf_attr_port_filter.h"
 #include "pwg/pwg_attr_vendor_smi_code.h"
 
@@ -79,7 +80,6 @@ pa_tnc_attr_t* pwg_attr_create_from_data(u_int32_t type, size_t length, chunk_t
        switch (type)
        {
                case PWG_HCD_DEFAULT_PWD_ENABLED:
-               case PWG_HCD_FORWARDING_ENABLED:
                case PWG_HCD_USER_APP_ENABLED:
                case PWG_HCD_USER_APP_PERSIST_ENABLED:
                case PWG_HCD_PSTN_FAX_ENABLED:
@@ -111,6 +111,9 @@ pa_tnc_attr_t* pwg_attr_create_from_data(u_int32_t type, size_t length, chunk_t
                                                                        pen_type_create(PEN_PWG, type));
                case PWG_HCD_VENDOR_SMI_CODE:
                        return pwg_attr_vendor_smi_code_create_from_data(length, value);
+               case PWG_HCD_FORWARDING_ENABLED:
+                       return ietf_attr_fwd_enabled_create_from_data(length, value,
+                                                                       pen_type_create(PEN_PWG, type));
                case PWG_HCD_FIREWALL_SETTING:
                        return ietf_attr_port_filter_create_from_data(length, value,
                                                                        pen_type_create(PEN_PWG, type));