/** @file\r
Ip4 internal functions and type defintions.\r
\r
-Copyright (c) 2005 - 2007, Intel Corporation.<BR> \r
-All rights reserved. This program and the accompanying materials\r
+Copyright (c) 2005 - 2012, Intel Corporation. All rights reserved.<BR>\r
+This program and the accompanying materials\r
are licensed and made available under the terms and conditions of the BSD License\r
which accompanies this distribution. The full text of the license may be found at\r
http://opensource.org/licenses/bsd-license.php\r
\r
#include <Uefi.h>\r
\r
+#include <Protocol/IpSec.h>\r
#include <Protocol/Ip4.h>\r
#include <Protocol/Ip4Config.h>\r
#include <Protocol/Arp.h>\r
#include "Ip4Input.h"\r
#include "Ip4Output.h"\r
\r
+#define IP4_PROTOCOL_SIGNATURE SIGNATURE_32 ('I', 'P', '4', 'P')\r
+#define IP4_SERVICE_SIGNATURE SIGNATURE_32 ('I', 'P', '4', 'S')\r
+\r
+//\r
+// The state of IP4 protocol. It starts from UNCONFIGED. if it is\r
+// successfully configured, it goes to CONFIGED. if configure NULL\r
+// is called, it becomes UNCONFIGED again. If (partly) destroyed, it\r
+// becomes DESTROY.\r
+//\r
+#define IP4_STATE_UNCONFIGED 0\r
+#define IP4_STATE_CONFIGED 1\r
+#define IP4_STATE_DESTROY 2\r
+\r
+//\r
+// The state of IP4 service. It starts from UNSTARTED. It transits\r
+// to STARTED if autoconfigure is started. If default address is\r
+// configured, it becomes CONFIGED. and if partly destroyed, it goes\r
+// to DESTROY.\r
+//\r
+#define IP4_SERVICE_UNSTARTED 0\r
+#define IP4_SERVICE_STARTED 1\r
+#define IP4_SERVICE_CONFIGED 2\r
+#define IP4_SERVICE_DESTROY 3\r
\r
\r
-typedef enum {\r
- IP4_PROTOCOL_SIGNATURE = SIGNATURE_32 ('I', 'P', '4', 'P'),\r
- IP4_SERVICE_SIGNATURE = SIGNATURE_32 ('I', 'P', '4', 'S'),\r
-\r
- //\r
- // The state of IP4 protocol. It starts from UNCONFIGED. if it is\r
- // successfully configured, it goes to CONFIGED. if configure NULL\r
- // is called, it becomes UNCONFIGED again. If (partly) destoried, it\r
- // becomes DESTORY.\r
- //\r
- IP4_STATE_UNCONFIGED = 0,\r
- IP4_STATE_CONFIGED,\r
- IP4_STATE_DESTORY,\r
-\r
- //\r
- // The state of IP4 service. It starts from UNSTARTED. It transits\r
- // to STARTED if autoconfigure is started. If default address is\r
- // configured, it becomes CONFIGED. and if partly destoried, it goes\r
- // to DESTORY.\r
- //\r
- IP4_SERVICE_UNSTARTED = 0,\r
- IP4_SERVICE_STARTED,\r
- IP4_SERVICE_CONFIGED,\r
- IP4_SERVICE_DESTORY\r
-} IP4_IMPL_ENUM_TYPES;\r
-\r
///\r
/// IP4_TXTOKEN_WRAP wraps the upper layer's transmit token.\r
/// The user's data is kept in the Packet. When fragment is\r
typedef struct {\r
IP4_PROTOCOL *IpInstance;\r
EFI_IP4_COMPLETION_TOKEN *Token;\r
+ EFI_EVENT IpSecRecycleSignal;\r
NET_BUF *Packet;\r
BOOLEAN Sent;\r
INTN Life;\r
} IP4_TXTOKEN_WRAP;\r
\r
+///\r
+/// IP4_IPSEC_WRAP wraps the packet received from MNP layer. The packet\r
+/// will be released after it has been processed by the receiver. Upon then,\r
+/// the IP4_IPSEC_WRAP will be released, and the IpSecRecycleSignal will be signaled\r
+/// to notice IPsec to free the resources.\r
+///\r
+typedef struct {\r
+ EFI_EVENT IpSecRecycleSignal;\r
+ NET_BUF *Packet;\r
+} IP4_IPSEC_WRAP;\r
+\r
///\r
/// IP4_RXDATA_WRAP wraps the data IP4 child delivers to the\r
/// upper layers. The received packet is kept in the Packet.\r
INTN State;\r
\r
IP4_SERVICE *Service;\r
- LIST_ENTRY Link; // Link to all the IP protocol from the service\r
+ LIST_ENTRY Link; // Link to all the IP protocol from the service\r
\r
//\r
// User's transmit/receive tokens, and received/deliverd packets\r
//\r
// IGMP data for this instance\r
//\r
- IP4_ADDR *Groups; // stored in network byte order\r
+ IP4_ADDR *Groups; // stored in network byte order\r
UINT32 GroupCount;\r
\r
EFI_IP4_CONFIG_DATA ConfigData;\r
UINT32 Signature;\r
EFI_SERVICE_BINDING_PROTOCOL ServiceBinding;\r
INTN State;\r
- BOOLEAN InDestory;\r
+ BOOLEAN InDestroy;\r
\r
//\r
// List of all the IP instances and interfaces, and default\r
// NIC this IP4_SERVICE works on.\r
//\r
CHAR16 *MacString;\r
+ UINT32 MaxPacketSize;\r
+ UINT32 OldMaxPacketSize; ///< The MTU before IPsec enable.\r
};\r
\r
#define IP4_INSTANCE_FROM_PROTOCOL(Ip4) \\r
\r
**/\r
EFI_STATUS\r
+EFIAPI\r
Ip4SentPacketTicking (\r
IN NET_MAP *Map,\r
IN NET_MAP_ITEM *Item,\r
IN VOID *Context\r
);\r
+\r
+/**\r
+ The callback function for the net buffer which wraps the user's\r
+ transmit token. Although it seems this function is pretty simple,\r
+ there are some subtle things.\r
+ When user requests the IP to transmit a packet by passing it a\r
+ token, the token is wrapped in an IP4_TXTOKEN_WRAP and the data\r
+ is wrapped in an net buffer. the net buffer's Free function is\r
+ set to Ip4FreeTxToken. The Token and token wrap are added to the\r
+ IP child's TxToken map. Then the buffer is passed to Ip4Output for\r
+ transmission. If something error happened before that, the buffer\r
+ is freed, which in turn will free the token wrap. The wrap may\r
+ have been added to the TxToken map or not, and the user's event\r
+ shouldn't be fired because we are still in the EfiIp4Transmit. If\r
+ the buffer has been sent by Ip4Output, it should be removed from\r
+ the TxToken map and user's event signaled. The token wrap and buffer\r
+ are bound together. Check the comments in Ip4Output for information\r
+ about IP fragmentation.\r
+\r
+ @param[in] Context The token's wrap\r
+\r
+**/\r
+VOID\r
+EFIAPI\r
+Ip4FreeTxToken (\r
+ IN VOID *Context\r
+ );\r
+\r
+extern EFI_IPSEC2_PROTOCOL *mIpSec;\r
+\r
#endif\r
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