* TRUE, if this is a response, FALSE if its a Request.
*/
bool response;
+
+ /**
+ * TRUE, if the packet is encrypted (IKEv1).
+ */
+ bool encryption;
+
+ /**
+ * TRUE, if the commit flag is set (IKEv1).
+ */
+ bool commit;
+
+ /**
+ * TRUE, if the auth only flag is set (IKEv1).
+ */
+ bool authonly;
} flags;
/**
+ * Reserved bits of IKE header
+ */
+ bool reserved[2];
+
+ /**
* Associated Message-ID.
*/
u_int32_t message_id;
u_int32_t length;
};
-ENUM_BEGIN(exchange_type_names, EXCHANGE_TYPE_UNDEFINED, EXCHANGE_TYPE_UNDEFINED,
- "EXCHANGE_TYPE_UNDEFINED");
-ENUM_NEXT(exchange_type_names, IKE_SA_INIT, INFORMATIONAL, EXCHANGE_TYPE_UNDEFINED,
+ENUM_BEGIN(exchange_type_names, ID_PROT, INFORMATIONAL_V1,
+ "ID_PROT",
+ "AUTH_ONLY",
+ "AGGRESSIVE",
+ "INFORMATIONAL_V1");
+ENUM_NEXT(exchange_type_names, QUICK_MODE, IKE_SESSION_RESUME, INFORMATIONAL_V1,
+ "QUICK_MODE",
+ "NEW_GROUP_MODE",
"IKE_SA_INIT",
"IKE_AUTH",
"CREATE_CHILD_SA",
- "INFORMATIONAL");
+ "INFORMATIONAL",
+ "IKE_SESSION_RESUME");
#ifdef ME
-ENUM_NEXT(exchange_type_names, ME_CONNECT, ME_CONNECT, INFORMATIONAL,
+ENUM_NEXT(exchange_type_names, ME_CONNECT, ME_CONNECT, IKE_SESSION_RESUME,
"ME_CONNECT");
-ENUM_END(exchange_type_names, ME_CONNECT);
+ENUM_NEXT(exchange_type_names, EXCHANGE_TYPE_UNDEFINED,
+ EXCHANGE_TYPE_UNDEFINED, ME_CONNECT,
+ "EXCHANGE_TYPE_UNDEFINED");
#else
-ENUM_END(exchange_type_names, INFORMATIONAL);
+ENUM_NEXT(exchange_type_names, EXCHANGE_TYPE_UNDEFINED,
+ EXCHANGE_TYPE_UNDEFINED, IKE_SESSION_RESUME,
+ "EXCHANGE_TYPE_UNDEFINED");
#endif /* ME */
+ENUM_END(exchange_type_names, EXCHANGE_TYPE_UNDEFINED);
/**
- * Encoding rules to parse or generate a IKEv2-Header.
+ * Encoding rules to parse or generate a IKE-Header.
*
* The defined offsets are the positions in a object of type
* ike_header_t.
/* 8 Byte SPI, stored in the field initiator_spi */
{ IKE_SPI, offsetof(private_ike_header_t, initiator_spi) },
/* 8 Byte SPI, stored in the field responder_spi */
- { IKE_SPI, offsetof(private_ike_header_t, responder_spi) },
+ { IKE_SPI, offsetof(private_ike_header_t, responder_spi) },
/* 1 Byte next payload type, stored in the field next_payload */
- { U_INT_8, offsetof(private_ike_header_t, next_payload) },
+ { U_INT_8, offsetof(private_ike_header_t, next_payload) },
/* 4 Bit major version, stored in the field maj_version */
- { U_INT_4, offsetof(private_ike_header_t, maj_version) },
+ { U_INT_4, offsetof(private_ike_header_t, maj_version) },
/* 4 Bit minor version, stored in the field min_version */
- { U_INT_4, offsetof(private_ike_header_t, min_version) },
+ { U_INT_4, offsetof(private_ike_header_t, min_version) },
/* 8 Bit for the exchange type */
- { U_INT_8, offsetof(private_ike_header_t, exchange_type) },
- /* 2 Bit reserved bits, nowhere stored */
- { RESERVED_BIT, 0 },
- { RESERVED_BIT, 0 },
- /* 3 Bit flags, stored in the fields response, version and initiator */
- { FLAG, offsetof(private_ike_header_t, flags.response) },
- { FLAG, offsetof(private_ike_header_t, flags.version) },
- { FLAG, offsetof(private_ike_header_t, flags.initiator) },
- /* 3 Bit reserved bits, nowhere stored */
- { RESERVED_BIT, 0 },
- { RESERVED_BIT, 0 },
- { RESERVED_BIT, 0 },
+ { U_INT_8, offsetof(private_ike_header_t, exchange_type) },
+ /* 2 Bit reserved bits */
+ { RESERVED_BIT, offsetof(private_ike_header_t, reserved[0]) },
+ { RESERVED_BIT, offsetof(private_ike_header_t, reserved[1]) },
+ /* 6 flags */
+ { FLAG, offsetof(private_ike_header_t, flags.response) },
+ { FLAG, offsetof(private_ike_header_t, flags.version) },
+ { FLAG, offsetof(private_ike_header_t, flags.initiator) },
+ { FLAG, offsetof(private_ike_header_t, flags.authonly) },
+ { FLAG, offsetof(private_ike_header_t, flags.commit) },
+ { FLAG, offsetof(private_ike_header_t, flags.encryption)},
/* 4 Byte message id, stored in the field message_id */
- { U_INT_32, offsetof(private_ike_header_t, message_id) },
+ { U_INT_32, offsetof(private_ike_header_t, message_id) },
/* 4 Byte length fied, stored in the field length */
- { HEADER_LENGTH, offsetof(private_ike_header_t, length) }
+ { HEADER_LENGTH,offsetof(private_ike_header_t, length) },
};
-
/* 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
+-+-+-+-+-+-+-+-+-+-+-+-+-+-+-+-+-+-+-+-+-+-+-+-+-+-+-+-+-+-+-+-+
+-+-+-+-+-+-+-+-+-+-+-+-+-+-+-+-+-+-+-+-+-+-+-+-+-+-+-+-+-+-+-+-+
*/
-
-/**
- * Implementation of payload_t.verify.
- */
-static status_t verify(private_ike_header_t *this)
+METHOD(payload_t, verify, status_t,
+ private_ike_header_t *this)
{
- if ((this->exchange_type < IKE_SA_INIT) ||
- ((this->exchange_type > INFORMATIONAL)
+ switch (this->exchange_type)
+ {
+ case ID_PROT:
+ case AGGRESSIVE:
+ if (this->message_id != 0)
+ {
+ return FAILED;
+ }
+ /* fall */
+ case AUTH_ONLY:
+ case INFORMATIONAL_V1:
+ case QUICK_MODE:
+ case NEW_GROUP_MODE:
+ if (this->maj_version != IKEV1_MAJOR_VERSION)
+ {
+ return FAILED;
+ }
+ break;
+ case IKE_SA_INIT:
+ case IKE_AUTH:
+ case CREATE_CHILD_SA:
+ case INFORMATIONAL:
+ case IKE_SESSION_RESUME:
#ifdef ME
- && (this->exchange_type != ME_CONNECT)
+ case ME_CONNECT:
#endif /* ME */
- ))
- {
- /* unsupported exchange type */
- return FAILED;
+ if (this->maj_version != IKEV2_MAJOR_VERSION)
+ {
+ return FAILED;
+ }
+ break;
+ default:
+ /* unsupported exchange type */
+ return FAILED;
}
-
- if (this->initiator_spi == 0
+ if (this->initiator_spi == 0)
+ {
#ifdef ME
- /* we allow zero spi for INFORMATIONAL exchanges,
- * to allow connectivity checks */
- && this->exchange_type != INFORMATIONAL
+ if (this->exchange_type != INFORMATIONAL)
+ /* we allow zero spi for INFORMATIONAL exchanges,
+ * to allow connectivity checks */
#endif /* ME */
- )
- {
- /* initiator spi not set */
- return FAILED;
+ {
+ return FAILED;
+ }
}
+ return SUCCESS;
+}
- /* verification of version is not done in here */
+METHOD(payload_t, get_encoding_rules, void,
+ private_ike_header_t *this, encoding_rule_t **rules, size_t *rule_count)
+{
+ *rules = ike_header_encodings;
+ *rule_count = sizeof(ike_header_encodings) / sizeof(encoding_rule_t);
+}
- return SUCCESS;
+METHOD(payload_t, get_type, payload_type_t,
+ private_ike_header_t *this)
+{
+ return HEADER;
}
-/**
- * Implementation of payload_t.set_next_type.
- */
-static void set_next_type(payload_t *this,payload_type_t type)
+METHOD(payload_t, get_next_type, payload_type_t,
+ private_ike_header_t *this)
{
- ((private_ike_header_t *)this)->next_payload = type;
+ return this->next_payload;
}
-/**
- * Implementation of ike_header_t.get_initiator_spi.
- */
-static u_int64_t get_initiator_spi(private_ike_header_t *this)
+
+METHOD(payload_t, set_next_type, void,
+ private_ike_header_t *this, payload_type_t type)
+{
+ this->next_payload = type;
+}
+
+METHOD(payload_t, get_length, size_t,
+ private_ike_header_t *this)
+{
+ return this->length;
+}
+
+METHOD(ike_header_t, get_initiator_spi, u_int64_t,
+ private_ike_header_t *this)
{
return this->initiator_spi;
}
-/**
- * Implementation of ike_header_t.set_initiator_spi.
- */
-static void set_initiator_spi(private_ike_header_t *this, u_int64_t initiator_spi)
+METHOD(ike_header_t, set_initiator_spi, void,
+ private_ike_header_t *this, u_int64_t initiator_spi)
{
this->initiator_spi = initiator_spi;
}
-/**
- * Implementation of ike_header_t.get_responder_spi.
- */
-static u_int64_t get_responder_spi(private_ike_header_t *this)
+METHOD(ike_header_t, get_responder_spi, u_int64_t,
+ private_ike_header_t *this)
{
return this->responder_spi;
}
-/**
- * Implementation of ike_header_t.set_responder_spi.
- */
-static void set_responder_spi(private_ike_header_t *this, u_int64_t responder_spi)
+METHOD(ike_header_t, set_responder_spi, void,
+ private_ike_header_t *this, u_int64_t responder_spi)
{
this->responder_spi = responder_spi;
}
-/**
- * Implementation of ike_header_t.get_maj_version.
- */
-static u_int8_t get_maj_version(private_ike_header_t *this)
+METHOD(ike_header_t, get_maj_version, u_int8_t,
+ private_ike_header_t *this)
{
return this->maj_version;
}
-/**
- * Implementation of ike_header_t.get_min_version.
- */
-static u_int8_t get_min_version(private_ike_header_t *this)
+METHOD(ike_header_t, set_maj_version, void,
+ private_ike_header_t *this, u_int8_t major)
+{
+ this->maj_version = major;
+}
+
+METHOD(ike_header_t, get_min_version, u_int8_t,
+ private_ike_header_t *this)
{
return this->min_version;
}
-/**
- * Implementation of ike_header_t.get_response_flag.
- */
-static bool get_response_flag(private_ike_header_t *this)
+METHOD(ike_header_t, set_min_version, void,
+ private_ike_header_t *this, u_int8_t minor)
+{
+ this->min_version = minor;
+}
+
+METHOD(ike_header_t, get_response_flag, bool,
+ private_ike_header_t *this)
{
return this->flags.response;
}
-/**
- * Implementation of ike_header_t.set_response_flag.
- */
-static void set_response_flag(private_ike_header_t *this, bool response)
+METHOD(ike_header_t, set_response_flag, void,
+ private_ike_header_t *this, bool response)
{
this->flags.response = response;
}
-/**
- * Implementation of ike_header_t.get_version_flag.
- */
-static bool get_version_flag(private_ike_header_t *this)
+METHOD(ike_header_t, get_version_flag, bool,
+ private_ike_header_t *this)
{
return this->flags.version;
}
-/**
- * Implementation of ike_header_t.get_initiator_flag.
- */
-static bool get_initiator_flag(private_ike_header_t *this)
+METHOD(ike_header_t, set_version_flag, void,
+ private_ike_header_t *this, bool version)
+{
+ this->flags.version = version;
+}
+
+METHOD(ike_header_t, get_initiator_flag, bool,
+ private_ike_header_t *this)
{
return this->flags.initiator;
}
-/**
- * Implementation of ike_header_t.set_initiator_flag.
- */
-static void set_initiator_flag(private_ike_header_t *this, bool initiator)
+METHOD(ike_header_t, set_initiator_flag, void,
+ private_ike_header_t *this, bool initiator)
{
this->flags.initiator = initiator;
}
-/**
- * Implementation of ike_header_t.get_exchange_type.
- */
-static u_int8_t get_exchange_type(private_ike_header_t *this)
+METHOD(ike_header_t, get_encryption_flag, bool,
+ private_ike_header_t *this)
{
- return this->exchange_type;
+ return this->flags.encryption;
}
-/**
- * Implementation of ike_header_t.set_exchange_type.
- */
-static void set_exchange_type(private_ike_header_t *this, u_int8_t exchange_type)
+METHOD(ike_header_t, set_encryption_flag, void,
+ private_ike_header_t *this, bool encryption)
{
- this->exchange_type = exchange_type;
+ this->flags.encryption = encryption;
}
-/**
- * Implements ike_header_t's get_message_id function.
- * See #ike_header_t.get_message_id for description.
- */
-static u_int32_t get_message_id(private_ike_header_t *this)
+
+METHOD(ike_header_t, get_commit_flag, bool,
+ private_ike_header_t *this)
{
- return this->message_id;
+ return this->flags.commit;
}
-/**
- * Implementation of ike_header_t.set_message_id.
- */
-static void set_message_id(private_ike_header_t *this, u_int32_t message_id)
+METHOD(ike_header_t, set_commit_flag, void,
+ private_ike_header_t *this, bool commit)
{
- this->message_id = message_id;
+ this->flags.commit = commit;
}
-/**
- * Implementation of ike_header_t.destroy and payload_t.destroy.
- */
-static void destroy(ike_header_t *this)
+METHOD(ike_header_t, get_authonly_flag, bool,
+ private_ike_header_t *this)
{
- free(this);
+ return this->flags.authonly;
}
-/**
- * Implementation of payload_t.get_encoding_rules.
- */
-static void get_encoding_rules(payload_t *this, encoding_rule_t **rules, size_t *rule_count)
+METHOD(ike_header_t, set_authonly_flag, void,
+ private_ike_header_t *this, bool authonly)
{
- *rules = ike_header_encodings;
- *rule_count = sizeof(ike_header_encodings) / sizeof(encoding_rule_t);
+ this->flags.authonly = authonly;
}
-/**
- * Implementation of payload_t.get_type.
- */
-static payload_type_t get_type(payload_t *this)
+METHOD(ike_header_t, get_exchange_type, u_int8_t,
+ private_ike_header_t *this)
{
- return HEADER;
+ return this->exchange_type;
}
-/**
- * Implementation of payload_t.get_next_type.
- */
-static payload_type_t get_next_type(payload_t *this)
+METHOD(ike_header_t, set_exchange_type, void,
+ private_ike_header_t *this, u_int8_t exchange_type)
{
- return (((private_ike_header_t*)this)->next_payload);
+ this->exchange_type = exchange_type;
}
-/**
- * Implementation of payload_t.get_length.
- */
-static size_t get_length(payload_t *this)
+METHOD(ike_header_t, get_message_id, u_int32_t,
+ private_ike_header_t *this)
+{
+ return this->message_id;
+}
+
+METHOD(ike_header_t, set_message_id, void,
+ private_ike_header_t *this, u_int32_t message_id)
{
- return (((private_ike_header_t*)this)->length);
+ this->message_id = message_id;
+}
+
+METHOD2(payload_t, ike_header_t, destroy, void,
+ private_ike_header_t *this)
+{
+ free(this);
}
/*
*/
ike_header_t *ike_header_create()
{
- private_ike_header_t *this = malloc_thing(private_ike_header_t);
-
- this->public.payload_interface.verify = (status_t (*) (payload_t *))verify;
- this->public.payload_interface.get_encoding_rules = get_encoding_rules;
- this->public.payload_interface.get_length = get_length;
- this->public.payload_interface.get_next_type = get_next_type;
- this->public.payload_interface.set_next_type = set_next_type;
- this->public.payload_interface.get_type = get_type;
- this->public.payload_interface.destroy = (void (*) (payload_t *))destroy;
- this->public.destroy = destroy;
-
- this->public.get_initiator_spi = (u_int64_t (*) (ike_header_t*))get_initiator_spi;
- this->public.set_initiator_spi = (void (*) (ike_header_t*,u_int64_t))set_initiator_spi;
- this->public.get_responder_spi = (u_int64_t (*) (ike_header_t*))get_responder_spi;
- this->public.set_responder_spi = (void (*) (ike_header_t *,u_int64_t))set_responder_spi;
- this->public.get_maj_version = (u_int8_t (*) (ike_header_t*))get_maj_version;
- this->public.get_min_version = (u_int8_t (*) (ike_header_t*))get_min_version;
- this->public.get_response_flag = (bool (*) (ike_header_t*))get_response_flag;
- this->public.set_response_flag = (void (*) (ike_header_t*,bool))set_response_flag;
- this->public.get_version_flag = (bool (*) (ike_header_t*))get_version_flag;
- this->public.get_initiator_flag = (bool (*) (ike_header_t*))get_initiator_flag;
- this->public.set_initiator_flag = (void (*) (ike_header_t*,bool))set_initiator_flag;
- this->public.get_exchange_type = (u_int8_t (*) (ike_header_t*))get_exchange_type;
- this->public.set_exchange_type = (void (*) (ike_header_t*,u_int8_t))set_exchange_type;
- this->public.get_message_id = (u_int32_t (*) (ike_header_t*))get_message_id;
- this->public.set_message_id = (void (*) (ike_header_t*,u_int32_t))set_message_id;
-
- /* set default values of the fields */
- this->initiator_spi = 0;
- this->responder_spi = 0;
- this->next_payload = 0;
- this->maj_version = IKE_MAJOR_VERSION;
- this->min_version = IKE_MINOR_VERSION;
- this->exchange_type = EXCHANGE_TYPE_UNDEFINED;
- this->flags.initiator = TRUE;
- this->flags.version = HIGHER_VERSION_SUPPORTED_FLAG;
- this->flags.response = FALSE;
- this->message_id = 0;
- this->length = IKE_HEADER_LENGTH;
-
- return (ike_header_t*)this;
+ private_ike_header_t *this;
+
+ INIT(this,
+ .public = {
+ .payload_interface = {
+ .verify = _verify,
+ .get_encoding_rules = _get_encoding_rules,
+ .get_length = _get_length,
+ .get_next_type = _get_next_type,
+ .set_next_type = _set_next_type,
+ .get_type = _get_type,
+ .destroy = _destroy,
+ },
+ .get_initiator_spi = _get_initiator_spi,
+ .set_initiator_spi = _set_initiator_spi,
+ .get_responder_spi = _get_responder_spi,
+ .set_responder_spi = _set_responder_spi,
+ .get_maj_version = _get_maj_version,
+ .set_maj_version = _set_maj_version,
+ .get_min_version = _get_min_version,
+ .set_min_version = _set_min_version,
+ .get_response_flag = _get_response_flag,
+ .set_response_flag = _set_response_flag,
+ .get_version_flag = _get_version_flag,
+ .set_version_flag = _set_version_flag,
+ .get_initiator_flag = _get_initiator_flag,
+ .set_initiator_flag = _set_initiator_flag,
+ .get_encryption_flag = _get_encryption_flag,
+ .set_encryption_flag = _set_encryption_flag,
+ .get_commit_flag = _get_commit_flag,
+ .set_commit_flag = _set_commit_flag,
+ .get_authonly_flag = _get_authonly_flag,
+ .set_authonly_flag = _set_authonly_flag,
+ .get_exchange_type = _get_exchange_type,
+ .set_exchange_type = _set_exchange_type,
+ .get_message_id = _get_message_id,
+ .set_message_id = _set_message_id,
+ .destroy = _destroy,
+ },
+ .length = IKE_HEADER_LENGTH,
+ .exchange_type = EXCHANGE_TYPE_UNDEFINED,
+ );
+
+ return &this->public;
}
+
+/*
+ * Described in header.
+ */
+ike_header_t *ike_header_create_version(int major, int minor)
+{
+ ike_header_t *this = ike_header_create();
+
+ this->set_maj_version(this, major);
+ this->set_min_version(this, minor);
+ if (major == IKEV2_MAJOR_VERSION)
+ {
+ this->set_initiator_flag(this, TRUE);
+ }
+ return this;
+}
+
projects / strongswan.git / blobdiff