diff options
Diffstat (limited to 'src/include/ipxe/efi/Protocol/Ip6.h')
| -rw-r--r-- | src/include/ipxe/efi/Protocol/Ip6.h | 948 |
1 files changed, 948 insertions, 0 deletions
diff --git a/src/include/ipxe/efi/Protocol/Ip6.h b/src/include/ipxe/efi/Protocol/Ip6.h new file mode 100644 index 00000000..c70df190 --- /dev/null +++ b/src/include/ipxe/efi/Protocol/Ip6.h @@ -0,0 +1,948 @@ +/** @file + This file defines the EFI IPv6 (Internet Protocol version 6) + Protocol interface. It is split into the following three main + sections: + - EFI IPv6 Service Binding Protocol + - EFI IPv6 Variable (deprecated in UEFI 2.4B) + - EFI IPv6 Protocol + The EFI IPv6 Protocol provides basic network IPv6 packet I/O services, + which includes support for Neighbor Discovery Protocol (ND), Multicast + Listener Discovery Protocol (MLD), and a subset of the Internet Control + Message Protocol (ICMPv6). + + Copyright (c) 2008 - 2014, Intel Corporation. All rights reserved.<BR> + SPDX-License-Identifier: BSD-2-Clause-Patent + + @par Revision Reference: + This Protocol is introduced in UEFI Specification 2.2 + +**/ + +#ifndef __EFI_IP6_PROTOCOL_H__ +#define __EFI_IP6_PROTOCOL_H__ + +FILE_LICENCE ( BSD2_PATENT ); + +#include <ipxe/efi/Protocol/ManagedNetwork.h> + +#define EFI_IP6_SERVICE_BINDING_PROTOCOL_GUID \ + { \ + 0xec835dd3, 0xfe0f, 0x617b, {0xa6, 0x21, 0xb3, 0x50, 0xc3, 0xe1, 0x33, 0x88 } \ + } + +#define EFI_IP6_PROTOCOL_GUID \ + { \ + 0x2c8759d5, 0x5c2d, 0x66ef, {0x92, 0x5f, 0xb6, 0x6c, 0x10, 0x19, 0x57, 0xe2 } \ + } + +typedef struct _EFI_IP6_PROTOCOL EFI_IP6_PROTOCOL; + +/// +/// EFI_IP6_ADDRESS_PAIR is deprecated in the UEFI 2.4B and should not be used any more. +/// The definition in here is only present to provide backwards compatability. +/// +typedef struct { + /// + /// The EFI IPv6 Protocol instance handle that is using this address/prefix pair. + /// + EFI_HANDLE InstanceHandle; + /// + /// IPv6 address in network byte order. + /// + EFI_IPv6_ADDRESS Ip6Address; + /// + /// The length of the prefix associated with the Ip6Address. + /// + UINT8 PrefixLength; +} EFI_IP6_ADDRESS_PAIR; + +/// +/// EFI_IP6_VARIABLE_DATA is deprecated in the UEFI 2.4B and should not be used any more. +/// The definition in here is only present to provide backwards compatability. +/// +typedef struct { + /// + /// The handle of the driver that creates this entry. + /// + EFI_HANDLE DriverHandle; + /// + /// The number of IPv6 address pairs that follow this data structure. + /// + UINT32 AddressCount; + /// + /// List of IPv6 address pairs that are currently in use. + /// + EFI_IP6_ADDRESS_PAIR AddressPairs[1]; +} EFI_IP6_VARIABLE_DATA; + +/// +/// ICMPv6 type definitions for error messages +/// +///@{ +#define ICMP_V6_DEST_UNREACHABLE 0x1 +#define ICMP_V6_PACKET_TOO_BIG 0x2 +#define ICMP_V6_TIME_EXCEEDED 0x3 +#define ICMP_V6_PARAMETER_PROBLEM 0x4 +///@} + +/// +/// ICMPv6 type definition for informational messages +/// +///@{ +#define ICMP_V6_ECHO_REQUEST 0x80 +#define ICMP_V6_ECHO_REPLY 0x81 +#define ICMP_V6_LISTENER_QUERY 0x82 +#define ICMP_V6_LISTENER_REPORT 0x83 +#define ICMP_V6_LISTENER_DONE 0x84 +#define ICMP_V6_ROUTER_SOLICIT 0x85 +#define ICMP_V6_ROUTER_ADVERTISE 0x86 +#define ICMP_V6_NEIGHBOR_SOLICIT 0x87 +#define ICMP_V6_NEIGHBOR_ADVERTISE 0x88 +#define ICMP_V6_REDIRECT 0x89 +#define ICMP_V6_LISTENER_REPORT_2 0x8F +///@} + +/// +/// ICMPv6 code definitions for ICMP_V6_DEST_UNREACHABLE +/// +///@{ +#define ICMP_V6_NO_ROUTE_TO_DEST 0x0 +#define ICMP_V6_COMM_PROHIBITED 0x1 +#define ICMP_V6_BEYOND_SCOPE 0x2 +#define ICMP_V6_ADDR_UNREACHABLE 0x3 +#define ICMP_V6_PORT_UNREACHABLE 0x4 +#define ICMP_V6_SOURCE_ADDR_FAILED 0x5 +#define ICMP_V6_ROUTE_REJECTED 0x6 +///@} + +/// +/// ICMPv6 code definitions for ICMP_V6_TIME_EXCEEDED +/// +///@{ +#define ICMP_V6_TIMEOUT_HOP_LIMIT 0x0 +#define ICMP_V6_TIMEOUT_REASSEMBLE 0x1 +///@} + +/// +/// ICMPv6 code definitions for ICMP_V6_PARAMETER_PROBLEM +/// +///@{ +#define ICMP_V6_ERRONEOUS_HEADER 0x0 +#define ICMP_V6_UNRECOGNIZE_NEXT_HDR 0x1 +#define ICMP_V6_UNRECOGNIZE_OPTION 0x2 +///@} + +/// +/// EFI_IP6_CONFIG_DATA +/// is used to report and change IPv6 session parameters. +/// +typedef struct { + /// + /// For the IPv6 packet to send and receive, this is the default value + /// of the 'Next Header' field in the last IPv6 extension header or in + /// the IPv6 header if there are no extension headers. Ignored when + /// AcceptPromiscuous is TRUE. + /// + UINT8 DefaultProtocol; + /// + /// Set to TRUE to receive all IPv6 packets that get through the + /// receive filters. + /// Set to FALSE to receive only the DefaultProtocol IPv6 + /// packets that get through the receive filters. Ignored when + /// AcceptPromiscuous is TRUE. + /// + BOOLEAN AcceptAnyProtocol; + /// + /// Set to TRUE to receive ICMP error report packets. Ignored when + /// AcceptPromiscuous or AcceptAnyProtocol is TRUE. + /// + BOOLEAN AcceptIcmpErrors; + /// + /// Set to TRUE to receive all IPv6 packets that are sent to any + /// hardware address or any protocol address. Set to FALSE to stop + /// receiving all promiscuous IPv6 packets. + /// + BOOLEAN AcceptPromiscuous; + /// + /// The destination address of the packets that will be transmitted. + /// Ignored if it is unspecified. + /// + EFI_IPv6_ADDRESS DestinationAddress; + /// + /// The station IPv6 address that will be assigned to this EFI IPv6 + /// Protocol instance. This field can be set and changed only when + /// the EFI IPv6 driver is transitioning from the stopped to the started + /// states. If the StationAddress is specified, the EFI IPv6 Protocol + /// driver will deliver only incoming IPv6 packets whose destination + /// matches this IPv6 address exactly. The StationAddress is required + /// to be one of currently configured IPv6 addresses. An address + /// containing all zeroes is also accepted as a special case. Under this + /// situation, the IPv6 driver is responsible for binding a source + /// address to this EFI IPv6 protocol instance according to the source + /// address selection algorithm. Only incoming packets destined to + /// the selected address will be delivered to the user. And the + /// selected station address can be retrieved through later + /// GetModeData() call. If no address is available for selecting, + /// EFI_NO_MAPPING will be returned, and the station address will + /// only be successfully bound to this EFI IPv6 protocol instance + /// after IP6ModeData.IsConfigured changed to TRUE. + /// + EFI_IPv6_ADDRESS StationAddress; + /// + /// TrafficClass field in transmitted IPv6 packets. Default value + /// is zero. + /// + UINT8 TrafficClass; + /// + /// HopLimit field in transmitted IPv6 packets. + /// + UINT8 HopLimit; + /// + /// FlowLabel field in transmitted IPv6 packets. Default value is + /// zero. + /// + UINT32 FlowLabel; + /// + /// The timer timeout value (number of microseconds) for the + /// receive timeout event to be associated with each assembled + /// packet. Zero means do not drop assembled packets. + /// + UINT32 ReceiveTimeout; + /// + /// The timer timeout value (number of microseconds) for the + /// transmit timeout event to be associated with each outgoing + /// packet. Zero means do not drop outgoing packets. + /// + UINT32 TransmitTimeout; +} EFI_IP6_CONFIG_DATA; + +/// +/// EFI_IP6_ADDRESS_INFO +/// +typedef struct { + EFI_IPv6_ADDRESS Address; ///< The IPv6 address. + UINT8 PrefixLength; ///< The length of the prefix associated with the Address. +} EFI_IP6_ADDRESS_INFO; + +/// +/// EFI_IP6_ROUTE_TABLE +/// is the entry structure that is used in routing tables +/// +typedef struct { + /// + /// The IPv6 address of the gateway to be used as the next hop for + /// packets to this prefix. If the IPv6 address is all zeros, then the + /// prefix is on-link. + /// + EFI_IPv6_ADDRESS Gateway; + /// + /// The destination prefix to be routed. + /// + EFI_IPv6_ADDRESS Destination; + /// + /// The length of the prefix associated with the Destination. + /// + UINT8 PrefixLength; +} EFI_IP6_ROUTE_TABLE; + +/// +/// EFI_IP6_NEIGHBOR_STATE +/// +typedef enum { + /// + /// Address resolution is being performed on this entry. Specially, + /// Neighbor Solicitation has been sent to the solicited-node + /// multicast address of the target, but corresponding Neighbor + /// Advertisement has not been received. + /// + EfiNeighborInComplete, + /// + /// Positive confirmation was received that the forward path to the + /// neighbor was functioning properly. + /// + EfiNeighborReachable, + /// + /// Reachable Time has elapsed since the last positive confirmation + /// was received. In this state, the forward path to the neighbor was + /// functioning properly. + /// + EfiNeighborStale, + /// + /// This state is an optimization that gives upper-layer protocols + /// additional time to provide reachability confirmation. + /// + EfiNeighborDelay, + /// + /// A reachability confirmation is actively sought by retransmitting + /// Neighbor Solicitations every RetransTimer milliseconds until a + /// reachability confirmation is received. + /// + EfiNeighborProbe +} EFI_IP6_NEIGHBOR_STATE; + +/// +/// EFI_IP6_NEIGHBOR_CACHE +/// is the entry structure that is used in neighbor cache. It records a set +/// of entries about individual neighbors to which traffic has been sent recently. +/// +typedef struct { + EFI_IPv6_ADDRESS Neighbor; ///< The on-link unicast/anycast IP address of the neighbor. + EFI_MAC_ADDRESS LinkAddress; ///< Link-layer address of the neighbor. + EFI_IP6_NEIGHBOR_STATE State; ///< State of this neighbor cache entry. +} EFI_IP6_NEIGHBOR_CACHE; + +/// +/// EFI_IP6_ICMP_TYPE +/// is used to describe those ICMP messages that are supported by this EFI +/// IPv6 Protocol driver. +/// +typedef struct { + UINT8 Type; ///< The type of ICMP message. + UINT8 Code; ///< The code of the ICMP message. +} EFI_IP6_ICMP_TYPE; + +/// +/// EFI_IP6_MODE_DATA +/// +typedef struct { + /// + /// Set to TRUE after this EFI IPv6 Protocol instance is started. + /// All other fields in this structure are undefined until this field is TRUE. + /// Set to FALSE when the EFI IPv6 Protocol instance is stopped. + /// + BOOLEAN IsStarted; + /// + /// The maximum packet size, in bytes, of the packet which the upper layer driver could feed. + /// + UINT32 MaxPacketSize; + /// + /// Current configuration settings. Undefined until IsStarted is TRUE. + /// + EFI_IP6_CONFIG_DATA ConfigData; + /// + /// Set to TRUE when the EFI IPv6 Protocol instance is configured. + /// The instance is configured when it has a station address and + /// corresponding prefix length. + /// Set to FALSE when the EFI IPv6 Protocol instance is not configured. + /// + BOOLEAN IsConfigured; + /// + /// Number of configured IPv6 addresses on this interface. + /// + UINT32 AddressCount; + /// + /// List of currently configured IPv6 addresses and corresponding + /// prefix lengths assigned to this interface. It is caller's + /// responsibility to free this buffer. + /// + EFI_IP6_ADDRESS_INFO *AddressList; + /// + /// Number of joined multicast groups. Undefined until + /// IsConfigured is TRUE. + /// + UINT32 GroupCount; + /// + /// List of joined multicast group addresses. It is caller's + /// responsibility to free this buffer. Undefined until + /// IsConfigured is TRUE. + /// + EFI_IPv6_ADDRESS *GroupTable; + /// + /// Number of entries in the routing table. Undefined until + /// IsConfigured is TRUE. + /// + UINT32 RouteCount; + /// + /// Routing table entries. It is caller's responsibility to free this buffer. + /// + EFI_IP6_ROUTE_TABLE *RouteTable; + /// + /// Number of entries in the neighbor cache. Undefined until + /// IsConfigured is TRUE. + /// + UINT32 NeighborCount; + /// + /// Neighbor cache entries. It is caller's responsibility to free this + /// buffer. Undefined until IsConfigured is TRUE. + /// + EFI_IP6_NEIGHBOR_CACHE *NeighborCache; + /// + /// Number of entries in the prefix table. Undefined until + /// IsConfigured is TRUE. + /// + UINT32 PrefixCount; + /// + /// On-link Prefix table entries. It is caller's responsibility to free this + /// buffer. Undefined until IsConfigured is TRUE. + /// + EFI_IP6_ADDRESS_INFO *PrefixTable; + /// + /// Number of entries in the supported ICMP types list. + /// + UINT32 IcmpTypeCount; + /// + /// Array of ICMP types and codes that are supported by this EFI + /// IPv6 Protocol driver. It is caller's responsibility to free this + /// buffer. + /// + EFI_IP6_ICMP_TYPE *IcmpTypeList; +} EFI_IP6_MODE_DATA; + +/// +/// EFI_IP6_HEADER +/// The fields in the IPv6 header structure are defined in the Internet +/// Protocol version6 specification. +/// +#pragma pack(1) +typedef struct _EFI_IP6_HEADER { + UINT8 TrafficClassH : 4; + UINT8 Version : 4; + UINT8 FlowLabelH : 4; + UINT8 TrafficClassL : 4; + UINT16 FlowLabelL; + UINT16 PayloadLength; + UINT8 NextHeader; + UINT8 HopLimit; + EFI_IPv6_ADDRESS SourceAddress; + EFI_IPv6_ADDRESS DestinationAddress; +} EFI_IP6_HEADER; +#pragma pack() + +/// +/// EFI_IP6_FRAGMENT_DATA +/// describes the location and length of the IPv6 packet +/// fragment to transmit or that has been received. +/// +typedef struct _EFI_IP6_FRAGMENT_DATA { + UINT32 FragmentLength; ///< Length of fragment data. This field may not be set to zero. + VOID *FragmentBuffer; ///< Pointer to fragment data. This field may not be set to NULL. +} EFI_IP6_FRAGMENT_DATA; + +/// +/// EFI_IP6_RECEIVE_DATA +/// +typedef struct _EFI_IP6_RECEIVE_DATA { + /// + /// Time when the EFI IPv6 Protocol driver accepted the packet. + /// Ignored if it is zero. + /// + EFI_TIME TimeStamp; + /// + /// After this event is signaled, the receive data structure is released + /// and must not be referenced. + /// + EFI_EVENT RecycleSignal; + /// + /// Length of the IPv6 packet headers, including both the IPv6 + /// header and any extension headers. + /// + UINT32 HeaderLength; + /// + /// Pointer to the IPv6 packet header. If the IPv6 packet was + /// fragmented, this argument is a pointer to the header in the first + /// fragment. + /// + EFI_IP6_HEADER *Header; + /// + /// Sum of the lengths of IPv6 packet buffers in FragmentTable. May + /// be zero. + /// + UINT32 DataLength; + /// + /// Number of IPv6 payload fragments. May be zero. + /// + UINT32 FragmentCount; + /// + /// Array of payload fragment lengths and buffer pointers. + /// + EFI_IP6_FRAGMENT_DATA FragmentTable[1]; +} EFI_IP6_RECEIVE_DATA; + +/// +/// EFI_IP6_OVERRIDE_DATA +/// The information and flags in the override data structure will override +/// default parameters or settings for one Transmit() function call. +/// +typedef struct _EFI_IP6_OVERRIDE_DATA { + UINT8 Protocol; ///< Protocol type override. + UINT8 HopLimit; ///< Hop-Limit override. + UINT32 FlowLabel; ///< Flow-Label override. +} EFI_IP6_OVERRIDE_DATA; + +/// +/// EFI_IP6_TRANSMIT_DATA +/// +typedef struct _EFI_IP6_TRANSMIT_DATA { + /// + /// The destination IPv6 address. If it is unspecified, + /// ConfigData.DestinationAddress will be used instead. + /// + EFI_IPv6_ADDRESS DestinationAddress; + /// + /// If not NULL, the IPv6 transmission control override data. + /// + EFI_IP6_OVERRIDE_DATA *OverrideData; + /// + /// Total length in byte of the IPv6 extension headers specified in + /// ExtHdrs. + /// + UINT32 ExtHdrsLength; + /// + /// Pointer to the IPv6 extension headers. The IP layer will append + /// the required extension headers if they are not specified by + /// ExtHdrs. Ignored if ExtHdrsLength is zero. + /// + VOID *ExtHdrs; + /// + /// The protocol of first extension header in ExtHdrs. Ignored if + /// ExtHdrsLength is zero. + /// + UINT8 NextHeader; + /// + /// Total length in bytes of the FragmentTable data to transmit. + /// + UINT32 DataLength; + /// + /// Number of entries in the fragment data table. + /// + UINT32 FragmentCount; + /// + /// Start of the fragment data table. + /// + EFI_IP6_FRAGMENT_DATA FragmentTable[1]; +} EFI_IP6_TRANSMIT_DATA; + +/// +/// EFI_IP6_COMPLETION_TOKEN +/// structures are used for both transmit and receive operations. +/// +typedef struct { + /// + /// This Event will be signaled after the Status field is updated by + /// the EFI IPv6 Protocol driver. The type of Event must be EFI_NOTIFY_SIGNAL. + /// + EFI_EVENT Event; + /// + /// Will be set to one of the following values: + /// - EFI_SUCCESS: The receive or transmit completed + /// successfully. + /// - EFI_ABORTED: The receive or transmit was aborted + /// - EFI_TIMEOUT: The transmit timeout expired. + /// - EFI_ICMP_ERROR: An ICMP error packet was received. + /// - EFI_DEVICE_ERROR: An unexpected system or network + /// error occurred. + /// - EFI_SECURITY_VIOLATION: The transmit or receive was + /// failed because of an IPsec policy check. + /// - EFI_NO_MEDIA: There was a media error. + /// + EFI_STATUS Status; + union { + /// + /// When the Token is used for receiving, RxData is a pointer to the EFI_IP6_RECEIVE_DATA. + /// + EFI_IP6_RECEIVE_DATA *RxData; + /// + /// When the Token is used for transmitting, TxData is a pointer to the EFI_IP6_TRANSMIT_DATA. + /// + EFI_IP6_TRANSMIT_DATA *TxData; + } Packet; +} EFI_IP6_COMPLETION_TOKEN; + +/** + Gets the current operational settings for this instance of the EFI IPv6 Protocol driver. + + The GetModeData() function returns the current operational mode data for this driver instance. + The data fields in EFI_IP6_MODE_DATA are read only. This function is used optionally to + retrieve the operational mode data of underlying networks or drivers.. + + @param[in] This Pointer to the EFI_IP6_PROTOCOL instance. + @param[out] Ip6ModeData Pointer to the EFI IPv6 Protocol mode data structure. + @param[out] MnpConfigData Pointer to the managed network configuration data structure. + @param[out] SnpModeData Pointer to the simple network mode data structure. + + @retval EFI_SUCCESS The operation completed successfully. + @retval EFI_INVALID_PARAMETER This is NULL. + @retval EFI_OUT_OF_RESOURCES The required mode data could not be allocated. + +**/ +typedef +EFI_STATUS +(EFIAPI *EFI_IP6_GET_MODE_DATA)( + IN EFI_IP6_PROTOCOL *This, + OUT EFI_IP6_MODE_DATA *Ip6ModeData OPTIONAL, + OUT EFI_MANAGED_NETWORK_CONFIG_DATA *MnpConfigData OPTIONAL, + OUT EFI_SIMPLE_NETWORK_MODE *SnpModeData OPTIONAL + ); + +/** + Assigns an IPv6 address and subnet mask to this EFI IPv6 Protocol driver instance. + + The Configure() function is used to set, change, or reset the operational parameters and filter + settings for this EFI IPv6 Protocol instance. Until these parameters have been set, no network traffic + can be sent or received by this instance. Once the parameters have been reset (by calling this + function with Ip6ConfigData set to NULL), no more traffic can be sent or received until these + parameters have been set again. Each EFI IPv6 Protocol instance can be started and stopped + independently of each other by enabling or disabling their receive filter settings with the + Configure() function. + + If Ip6ConfigData.StationAddress is a valid non-zero IPv6 unicast address, it is required + to be one of the currently configured IPv6 addresses list in the EFI IPv6 drivers, or else + EFI_INVALID_PARAMETER will be returned. If Ip6ConfigData.StationAddress is + unspecified, the IPv6 driver will bind a source address according to the source address selection + algorithm. Clients could frequently call GetModeData() to check get currently configured IPv6 + address list in the EFI IPv6 driver. If both Ip6ConfigData.StationAddress and + Ip6ConfigData.Destination are unspecified, when transmitting the packet afterwards, the + source address filled in each outgoing IPv6 packet is decided based on the destination of this packet. . + + If operational parameters are reset or changed, any pending transmit and receive requests will be + cancelled. Their completion token status will be set to EFI_ABORTED and their events will be + signaled. + + @param[in] This Pointer to the EFI_IP6_PROTOCOL instance. + @param[in] Ip6ConfigData Pointer to the EFI IPv6 Protocol configuration data structure. + + @retval EFI_SUCCESS The driver instance was successfully opened. + @retval EFI_INVALID_PARAMETER One or more of the following conditions is TRUE: + - This is NULL. + - Ip6ConfigData.StationAddress is neither zero nor + a unicast IPv6 address. + - Ip6ConfigData.StationAddress is neither zero nor + one of the configured IP addresses in the EFI IPv6 driver. + - Ip6ConfigData.DefaultProtocol is illegal. + @retval EFI_OUT_OF_RESOURCES The EFI IPv6 Protocol driver instance data could not be allocated. + @retval EFI_NO_MAPPING The IPv6 driver was responsible for choosing a source address for + this instance, but no source address was available for use. + @retval EFI_ALREADY_STARTED The interface is already open and must be stopped before the IPv6 + address or prefix length can be changed. + @retval EFI_DEVICE_ERROR An unexpected system or network error occurred. The EFI IPv6 + Protocol driver instance is not opened. + @retval EFI_UNSUPPORTED Default protocol specified through + Ip6ConfigData.DefaulProtocol isn't supported. + +**/ +typedef +EFI_STATUS +(EFIAPI *EFI_IP6_CONFIGURE)( + IN EFI_IP6_PROTOCOL *This, + IN EFI_IP6_CONFIG_DATA *Ip6ConfigData OPTIONAL + ); + +/** + Joins and leaves multicast groups. + + The Groups() function is used to join and leave multicast group sessions. Joining a group will + enable reception of matching multicast packets. Leaving a group will disable reception of matching + multicast packets. Source-Specific Multicast isn't required to be supported. + + If JoinFlag is FALSE and GroupAddress is NULL, all joined groups will be left. + + @param[in] This Pointer to the EFI_IP6_PROTOCOL instance. + @param[in] JoinFlag Set to TRUE to join the multicast group session and FALSE to leave. + @param[in] GroupAddress Pointer to the IPv6 multicast address. + + @retval EFI_SUCCESS The operation completed successfully. + @retval EFI_INVALID_PARAMETER One or more of the following is TRUE: + - This is NULL. + - JoinFlag is TRUE and GroupAddress is NULL. + - GroupAddress is not NULL and *GroupAddress is + not a multicast IPv6 address. + - GroupAddress is not NULL and *GroupAddress is in the + range of SSM destination address. + @retval EFI_NOT_STARTED This instance has not been started. + @retval EFI_OUT_OF_RESOURCES System resources could not be allocated. + @retval EFI_UNSUPPORTED This EFI IPv6 Protocol implementation does not support multicast groups. + @retval EFI_ALREADY_STARTED The group address is already in the group table (when + JoinFlag is TRUE). + @retval EFI_NOT_FOUND The group address is not in the group table (when JoinFlag is FALSE). + @retval EFI_DEVICE_ERROR An unexpected system or network error occurred. + +**/ +typedef +EFI_STATUS +(EFIAPI *EFI_IP6_GROUPS)( + IN EFI_IP6_PROTOCOL *This, + IN BOOLEAN JoinFlag, + IN EFI_IPv6_ADDRESS *GroupAddress OPTIONAL + ); + +/** + Adds and deletes routing table entries. + + The Routes() function adds a route to or deletes a route from the routing table. + + Routes are determined by comparing the leftmost PrefixLength bits of Destination with + the destination IPv6 address arithmetically. The gateway address must be on the same subnet as the + configured station address. + + The default route is added with Destination and PrefixLegth both set to all zeros. The + default route matches all destination IPv6 addresses that do not match any other routes. + + All EFI IPv6 Protocol instances share a routing table. + + @param[in] This Pointer to the EFI_IP6_PROTOCOL instance. + @param[in] DeleteRoute Set to TRUE to delete this route from the routing table. Set to + FALSE to add this route to the routing table. Destination, + PrefixLength and Gateway are used as the key to each + route entry. + @param[in] Destination The address prefix of the subnet that needs to be routed. + @param[in] PrefixLength The prefix length of Destination. Ignored if Destination + is NULL. + @param[in] GatewayAddress The unicast gateway IPv6 address for this route. + + @retval EFI_SUCCESS The operation completed successfully. + @retval EFI_NOT_STARTED The driver instance has not been started. + @retval EFI_INVALID_PARAMETER One or more of the following conditions is TRUE: + - This is NULL. + - When DeleteRoute is TRUE, both Destination and + GatewayAddress are NULL. + - When DeleteRoute is FALSE, either Destination or + GatewayAddress is NULL. + - *GatewayAddress is not a valid unicast IPv6 address. + - *GatewayAddress is one of the local configured IPv6 + addresses. + @retval EFI_OUT_OF_RESOURCES Could not add the entry to the routing table. + @retval EFI_NOT_FOUND This route is not in the routing table (when DeleteRoute is TRUE). + @retval EFI_ACCESS_DENIED The route is already defined in the routing table (when + DeleteRoute is FALSE). + +**/ +typedef +EFI_STATUS +(EFIAPI *EFI_IP6_ROUTES)( + IN EFI_IP6_PROTOCOL *This, + IN BOOLEAN DeleteRoute, + IN EFI_IPv6_ADDRESS *Destination OPTIONAL, + IN UINT8 PrefixLength, + IN EFI_IPv6_ADDRESS *GatewayAddress OPTIONAL + ); + +/** + Add or delete Neighbor cache entries. + + The Neighbors() function is used to add, update, or delete an entry from neighbor cache. + IPv6 neighbor cache entries are typically inserted and updated by the network protocol driver as + network traffic is processed. Most neighbor cache entries will time out and be deleted if the network + traffic stops. Neighbor cache entries that were inserted by Neighbors() may be static (will not + timeout) or dynamic (will time out). + + The implementation should follow the neighbor cache timeout mechanism which is defined in + RFC4861. The default neighbor cache timeout value should be tuned for the expected network + environment + + @param[in] This Pointer to the EFI_IP6_PROTOCOL instance. + @param[in] DeleteFlag Set to TRUE to delete the specified cache entry, set to FALSE to + add (or update, if it already exists and Override is TRUE) the + specified cache entry. TargetIp6Address is used as the key + to find the requested cache entry. + @param[in] TargetIp6Address Pointer to Target IPv6 address. + @param[in] TargetLinkAddress Pointer to link-layer address of the target. Ignored if NULL. + @param[in] Timeout Time in 100-ns units that this entry will remain in the neighbor + cache, it will be deleted after Timeout. A value of zero means that + the entry is permanent. A non-zero value means that the entry is + dynamic. + @param[in] Override If TRUE, the cached link-layer address of the matching entry will + be overridden and updated; if FALSE, EFI_ACCESS_DENIED + will be returned if a corresponding cache entry already existed. + + @retval EFI_SUCCESS The data has been queued for transmission. + @retval EFI_NOT_STARTED This instance has not been started. + @retval EFI_INVALID_PARAMETER One or more of the following conditions is TRUE: + - This is NULL. + - TargetIpAddress is NULL. + - *TargetLinkAddress is invalid when not NULL. + - *TargetIpAddress is not a valid unicast IPv6 address. + - *TargetIpAddress is one of the local configured IPv6 + addresses. + @retval EFI_OUT_OF_RESOURCES Could not add the entry to the neighbor cache. + @retval EFI_NOT_FOUND This entry is not in the neighbor cache (when DeleteFlag is + TRUE or when DeleteFlag is FALSE while + TargetLinkAddress is NULL.). + @retval EFI_ACCESS_DENIED The to-be-added entry is already defined in the neighbor cache, + and that entry is tagged as un-overridden (when DeleteFlag + is FALSE). + +**/ +typedef +EFI_STATUS +(EFIAPI *EFI_IP6_NEIGHBORS)( + IN EFI_IP6_PROTOCOL *This, + IN BOOLEAN DeleteFlag, + IN EFI_IPv6_ADDRESS *TargetIp6Address, + IN EFI_MAC_ADDRESS *TargetLinkAddress, + IN UINT32 Timeout, + IN BOOLEAN Override + ); + +/** + Places outgoing data packets into the transmit queue. + + The Transmit() function places a sending request in the transmit queue of this + EFI IPv6 Protocol instance. Whenever the packet in the token is sent out or some + errors occur, the event in the token will be signaled and the status is updated. + + @param[in] This Pointer to the EFI_IP6_PROTOCOL instance. + @param[in] Token Pointer to the transmit token. + + @retval EFI_SUCCESS The data has been queued for transmission. + @retval EFI_NOT_STARTED This instance has not been started. + @retval EFI_NO_MAPPING The IPv6 driver was responsible for choosing a source address for + this transmission, but no source address was available for use. + @retval EFI_INVALID_PARAMETER One or more of the following is TRUE: + - This is NULL. + - Token is NULL. + - Token.Event is NULL. + - Token.Packet.TxData is NULL. + - Token.Packet.ExtHdrsLength is not zero and Token.Packet.ExtHdrs is NULL. + - Token.Packet.FragmentCount is zero. + - One or more of the Token.Packet.TxData.FragmentTable[].FragmentLength fields is zero. + - One or more of the Token.Packet.TxData.FragmentTable[].FragmentBuffer fields is NULL. + - Token.Packet.TxData.DataLength is zero or not equal to the sum of fragment lengths. + - Token.Packet.TxData.DestinationAddress is non-zero when DestinationAddress is configured as + non-zero when doing Configure() for this EFI IPv6 protocol instance. + - Token.Packet.TxData.DestinationAddress is unspecified when DestinationAddress is unspecified + when doing Configure() for this EFI IPv6 protocol instance. + @retval EFI_ACCESS_DENIED The transmit completion token with the same Token.Event + was already in the transmit queue. + @retval EFI_NOT_READY The completion token could not be queued because the transmit + queue is full. + @retval EFI_NOT_FOUND Not route is found to destination address. + @retval EFI_OUT_OF_RESOURCES Could not queue the transmit data. + @retval EFI_BUFFER_TOO_SMALL Token.Packet.TxData.TotalDataLength is too + short to transmit. + @retval EFI_BAD_BUFFER_SIZE If Token.Packet.TxData.DataLength is beyond the + maximum that which can be described through the Fragment Offset + field in Fragment header when performing fragmentation. + @retval EFI_DEVICE_ERROR An unexpected system or network error occurred. + +**/ +typedef +EFI_STATUS +(EFIAPI *EFI_IP6_TRANSMIT)( + IN EFI_IP6_PROTOCOL *This, + IN EFI_IP6_COMPLETION_TOKEN *Token + ); + +/** + Places a receiving request into the receiving queue. + + The Receive() function places a completion token into the receive packet queue. + This function is always asynchronous. + + The Token.Event field in the completion token must be filled in by the caller + and cannot be NULL. When the receive operation completes, the EFI IPv6 Protocol + driver updates the Token.Status and Token.Packet.RxData fields and the Token.Event + is signaled. + + @param[in] This Pointer to the EFI_IP6_PROTOCOL instance. + @param[in] Token Pointer to a token that is associated with the receive data descriptor. + + @retval EFI_SUCCESS The receive completion token was cached. + @retval EFI_NOT_STARTED This EFI IPv6 Protocol instance has not been started. + @retval EFI_NO_MAPPING When IP6 driver responsible for binding source address to this instance, + while no source address is available for use. + @retval EFI_INVALID_PARAMETER One or more of the following conditions is TRUE: + - This is NULL. + - Token is NULL. + - Token.Event is NULL. + @retval EFI_OUT_OF_RESOURCES The receive completion token could not be queued due to a lack of system + resources (usually memory). + @retval EFI_DEVICE_ERROR An unexpected system or network error occurred. + The EFI IPv6 Protocol instance has been reset to startup defaults. + @retval EFI_ACCESS_DENIED The receive completion token with the same Token.Event was already + in the receive queue. + @retval EFI_NOT_READY The receive request could not be queued because the receive queue is full. + +**/ +typedef +EFI_STATUS +(EFIAPI *EFI_IP6_RECEIVE)( + IN EFI_IP6_PROTOCOL *This, + IN EFI_IP6_COMPLETION_TOKEN *Token + ); + +/** + Abort an asynchronous transmit or receive request. + + The Cancel() function is used to abort a pending transmit or receive request. + If the token is in the transmit or receive request queues, after calling this + function, Token->Status will be set to EFI_ABORTED and then Token->Event will + be signaled. If the token is not in one of the queues, which usually means the + asynchronous operation has completed, this function will not signal the token + and EFI_NOT_FOUND is returned. + + @param[in] This Pointer to the EFI_IP6_PROTOCOL instance. + @param[in] Token Pointer to a token that has been issued by + EFI_IP6_PROTOCOL.Transmit() or + EFI_IP6_PROTOCOL.Receive(). If NULL, all pending + tokens are aborted. Type EFI_IP6_COMPLETION_TOKEN is + defined in EFI_IP6_PROTOCOL.Transmit(). + + @retval EFI_SUCCESS The asynchronous I/O request was aborted and + Token->Event was signaled. When Token is NULL, all + pending requests were aborted and their events were signaled. + @retval EFI_INVALID_PARAMETER This is NULL. + @retval EFI_NOT_STARTED This instance has not been started. + @retval EFI_NOT_FOUND When Token is not NULL, the asynchronous I/O request was + not found in the transmit or receive queue. It has either completed + or was not issued by Transmit() and Receive(). + @retval EFI_DEVICE_ERROR An unexpected system or network error occurred. + +**/ +typedef +EFI_STATUS +(EFIAPI *EFI_IP6_CANCEL)( + IN EFI_IP6_PROTOCOL *This, + IN EFI_IP6_COMPLETION_TOKEN *Token OPTIONAL + ); + +/** + Polls for incoming data packets and processes outgoing data packets. + + The Poll() function polls for incoming data packets and processes outgoing data + packets. Network drivers and applications can call the EFI_IP6_PROTOCOL.Poll() + function to increase the rate that data packets are moved between the communications + device and the transmit and receive queues. + + In some systems the periodic timer event may not poll the underlying communications + device fast enough to transmit and/or receive all data packets without missing + incoming packets or dropping outgoing packets. Drivers and applications that are + experiencing packet loss should try calling the EFI_IP6_PROTOCOL.Poll() function + more often. + + @param[in] This Pointer to the EFI_IP6_PROTOCOL instance. + + @retval EFI_SUCCESS Incoming or outgoing data was processed. + @retval EFI_NOT_STARTED This EFI IPv6 Protocol instance has not been started. + @retval EFI_INVALID_PARAMETER This is NULL. + @retval EFI_DEVICE_ERROR An unexpected system or network error occurred. + @retval EFI_NOT_READY No incoming or outgoing data is processed. + @retval EFI_TIMEOUT Data was dropped out of the transmit and/or receive queue. + Consider increasing the polling rate. + +**/ +typedef +EFI_STATUS +(EFIAPI *EFI_IP6_POLL)( + IN EFI_IP6_PROTOCOL *This + ); + +/// +/// The EFI IPv6 Protocol implements a simple packet-oriented interface that can be +/// used by drivers, daemons, and applications to transmit and receive network packets. +/// +struct _EFI_IP6_PROTOCOL { + EFI_IP6_GET_MODE_DATA GetModeData; + EFI_IP6_CONFIGURE Configure; + EFI_IP6_GROUPS Groups; + EFI_IP6_ROUTES Routes; + EFI_IP6_NEIGHBORS Neighbors; + EFI_IP6_TRANSMIT Transmit; + EFI_IP6_RECEIVE Receive; + EFI_IP6_CANCEL Cancel; + EFI_IP6_POLL Poll; +}; + +extern EFI_GUID gEfiIp6ServiceBindingProtocolGuid; +extern EFI_GUID gEfiIp6ProtocolGuid; + +#endif |