359 lines
14 KiB
C
359 lines
14 KiB
C
|
/********************************************************************/
|
||
|
|
/** Microsoft LAN Manager **/
|
||
|
|
/** Copyright(c) Microsoft Corp., 1990-2000 **/
|
||
|
|
/********************************************************************/
|
||
|
|
/* :ts=4 */
|
||
|
|
|
||
|
|
//*** arpdef.h - ARP definitions
|
||
|
|
//
|
||
|
|
// This file containes all of the private ARP related definitions.
|
||
|
|
|
||
|
|
|
||
|
|
#define MEDIA_DIX 0
|
||
|
|
#define MEDIA_TR 1
|
||
|
|
#define MEDIA_FDDI 2
|
||
|
|
#define MEDIA_ARCNET 3
|
||
|
|
#define MAX_MEDIA 4
|
||
|
|
|
||
|
|
#define INTERFACE_UP 0 // Interface is up.
|
||
|
|
#define INTERFACE_INIT 1 // Interface is initializing.
|
||
|
|
#define INTERFACE_DOWN 2 // Interface is down.
|
||
|
|
|
||
|
|
#define LOOKAHEAD_SIZE 128 // A reasonable lookahead size
|
||
|
|
|
||
|
|
// Definitions for state of an ATE. The 'RESOLVING' indicators must occur first.
|
||
|
|
#define ARP_RESOLVING_LOCAL 0 // Address is being resolved (on local ring, if TR)
|
||
|
|
#define ARP_RESOLVING_GLOBAL 1 // Address is being resolved globally.
|
||
|
|
#define ARP_RESOLVING ARP_RESOLVING_GLOBAL
|
||
|
|
#define ARP_GOOD 2 // ATE is good.
|
||
|
|
#define ARP_BAD 3 // ATE is bad.
|
||
|
|
#define ARP_FLOOD_RATE 1000L // No more than once a second.
|
||
|
|
#define ARP_802_ADDR_LENGTH 6 // Length of an 802 address.
|
||
|
|
|
||
|
|
#define MIN_ETYPE 0x600 // Minimum valid Ethertype
|
||
|
|
#define SNAP_SAP 170
|
||
|
|
#define SNAP_UI 3
|
||
|
|
|
||
|
|
|
||
|
|
//* Structure of an Ethernet header.
|
||
|
|
typedef struct ENetHeader {
|
||
|
|
uchar eh_daddr[ARP_802_ADDR_LENGTH];
|
||
|
|
uchar eh_saddr[ARP_802_ADDR_LENGTH];
|
||
|
|
ushort eh_type;
|
||
|
|
} ENetHeader;
|
||
|
|
|
||
|
|
//* Structure of a token ring header.
|
||
|
|
typedef struct TRHeader {
|
||
|
|
uchar tr_ac;
|
||
|
|
uchar tr_fc;
|
||
|
|
uchar tr_daddr[ARP_802_ADDR_LENGTH];
|
||
|
|
uchar tr_saddr[ARP_802_ADDR_LENGTH];
|
||
|
|
} TRHeader;
|
||
|
|
|
||
|
|
#define ARP_AC 0x10
|
||
|
|
#define ARP_FC 0x40
|
||
|
|
#define TR_RII 0x80
|
||
|
|
|
||
|
|
typedef struct RC {
|
||
|
|
uchar rc_blen; // Broadcast indicator and length.
|
||
|
|
uchar rc_dlf; // Direction and largest frame.
|
||
|
|
} RC;
|
||
|
|
#define RC_DIR 0x80
|
||
|
|
#define RC_LENMASK 0x1f
|
||
|
|
#define RC_SRBCST 0xc2 // Single route broadcast RC.
|
||
|
|
#define RC_ARBCST 0x82 // All route broadcast RC.
|
||
|
|
#define RC_LMASK 0x1F // Mask for length field for route
|
||
|
|
// information
|
||
|
|
#define RC_LEN 0x2 // Length to put in the length bits
|
||
|
|
// when sending source routed
|
||
|
|
// frames
|
||
|
|
#define RC_BCST_LEN 0x70 // Length for a broadcast.
|
||
|
|
#define RC_LF_MASK 0x70 // Mask for length bits.
|
||
|
|
|
||
|
|
//* Structure of source routing information.
|
||
|
|
typedef struct SRInfo {
|
||
|
|
RC sri_rc; // Routing control info.
|
||
|
|
ushort sri_rd[1]; // Routing designators.
|
||
|
|
} SRInfo;
|
||
|
|
|
||
|
|
#define ARP_MAX_RD 8
|
||
|
|
|
||
|
|
//* Structure of an FDDI header.
|
||
|
|
typedef struct FDDIHeader {
|
||
|
|
uchar fh_pri;
|
||
|
|
uchar fh_daddr[ARP_802_ADDR_LENGTH];
|
||
|
|
uchar fh_saddr[ARP_802_ADDR_LENGTH];
|
||
|
|
} FDDIHeader;
|
||
|
|
|
||
|
|
#define ARP_FDDI_PRI 0x57
|
||
|
|
#define ARP_FDDI_MSS 4352
|
||
|
|
|
||
|
|
//* Structure of an ARCNET header.
|
||
|
|
typedef struct ARCNetHeader {
|
||
|
|
uchar ah_saddr;
|
||
|
|
uchar ah_daddr;
|
||
|
|
uchar ah_prot;
|
||
|
|
} ARCNetHeader;
|
||
|
|
|
||
|
|
//* Structure of a SNAP header.
|
||
|
|
typedef struct SNAPHeader {
|
||
|
|
uchar sh_dsap;
|
||
|
|
uchar sh_ssap;
|
||
|
|
uchar sh_ctl;
|
||
|
|
uchar sh_protid[3];
|
||
|
|
ushort sh_etype;
|
||
|
|
} SNAPHeader;
|
||
|
|
|
||
|
|
#define ARP_MAX_MEDIA_ENET sizeof(ENetHeader)
|
||
|
|
#define ARP_MAX_MEDIA_TR (sizeof(TRHeader)+sizeof(RC)+(ARP_MAX_RD*sizeof(ushort))+sizeof(SNAPHeader))
|
||
|
|
#define ARP_MAX_MEDIA_FDDI (sizeof(FDDIHeader)+sizeof(SNAPHeader))
|
||
|
|
#define ARP_MAX_MEDIA_ARC sizeof(ARCNetHeader)
|
||
|
|
|
||
|
|
#define ENET_BCAST_MASK 0x01
|
||
|
|
#define TR_BCAST_MASK 0x80
|
||
|
|
#define FDDI_BCAST_MASK 0x01
|
||
|
|
#define ARC_BCAST_MASK 0xff
|
||
|
|
|
||
|
|
#define ENET_BCAST_VAL 0x01
|
||
|
|
#define TR_BCAST_VAL 0x80
|
||
|
|
#define FDDI_BCAST_VAL 0x01
|
||
|
|
#define ARC_BCAST_VAL 0x00
|
||
|
|
|
||
|
|
#define ENET_BCAST_OFF 0x00
|
||
|
|
#define TR_BCAST_OFF offsetof(struct TRHeader, tr_daddr)
|
||
|
|
#define FDDI_BCAST_OFF offsetof(struct FDDIHeader, fh_daddr)
|
||
|
|
#define ARC_BCAST_OFF offsetof(struct ARCNetHeader, ah_daddr)
|
||
|
|
|
||
|
|
typedef void (*ArpRtn)(void *, IP_STATUS Status);
|
||
|
|
|
||
|
|
typedef struct ARPControlBlock {
|
||
|
|
struct ARPControlBlock *next;
|
||
|
|
ArpRtn CompletionRtn;
|
||
|
|
ulong status;
|
||
|
|
ulong PhyAddrLen;
|
||
|
|
ulong *PhyAddr;
|
||
|
|
|
||
|
|
} ARPControlBlock;
|
||
|
|
|
||
|
|
|
||
|
|
//* Structure of an ARP table entry.
|
||
|
|
typedef struct ARPTableEntry {
|
||
|
|
struct ARPTableEntry *ate_next; // Next ATE in hash chain
|
||
|
|
ulong ate_valid; // Last time ATE was known to be valid.
|
||
|
|
IPAddr ate_dest; // IP address represented.
|
||
|
|
PNDIS_PACKET ate_packet; // Packet (if any) queued for resolution
|
||
|
|
RouteCacheEntry *ate_rce; // List of RCEs that reference this ATE.
|
||
|
|
DEFINE_LOCK_STRUCTURE(ate_lock) // Lock for this ATE.
|
||
|
|
uint ate_useticks; // Number of ticks left until this
|
||
|
|
// goes away.
|
||
|
|
uchar ate_addrlength; // Length of the address.
|
||
|
|
uchar ate_state; // State of this entry
|
||
|
|
ulong ate_userarp; // added to facilitate user api ARP reauests
|
||
|
|
ARPControlBlock *ate_resolveonly;// This field points ARP control block(s)
|
||
|
|
uint ate_refresh; //refresh arp entries before timeingout
|
||
|
|
uchar ate_addr[1]; // Address that maps to dest
|
||
|
|
} ARPTableEntry;
|
||
|
|
|
||
|
|
#define ALWAYS_VALID 0xffffffff
|
||
|
|
|
||
|
|
//* Structure of the ARP table.
|
||
|
|
#define ARP_TABLE_SIZE 64
|
||
|
|
#define ARP_HASH(x) ((((uchar *)&(x))[3] + ((uchar *)&(x))[2] + ((uchar *)&(x))[1] + ((uchar *)&(x))[0]) % ARP_TABLE_SIZE)
|
||
|
|
|
||
|
|
typedef ARPTableEntry *ARPTable[];
|
||
|
|
|
||
|
|
//* List structure for local representation of an IPAddress.
|
||
|
|
typedef struct ARPIPAddr {
|
||
|
|
struct ARPIPAddr *aia_next; // Next in list.
|
||
|
|
uint aia_age;
|
||
|
|
IPAddr aia_addr; // The address.
|
||
|
|
IPMask aia_mask;
|
||
|
|
void *aia_context;
|
||
|
|
} ARPIPAddr;
|
||
|
|
|
||
|
|
#define ARPADDR_NOT_LOCAL 4
|
||
|
|
#define ARPADDR_NEW_LOCAL 3
|
||
|
|
#define ARPADDR_OLD_LOCAL 0
|
||
|
|
|
||
|
|
//* List structure for Proxy-ARP addresses.
|
||
|
|
typedef struct ARPPArpAddr {
|
||
|
|
struct ARPPArpAddr *apa_next; // Next in list.
|
||
|
|
IPAddr apa_addr; // The address.
|
||
|
|
IPMask apa_mask; // And the mask.
|
||
|
|
} ARPPArpAddr;
|
||
|
|
|
||
|
|
//* List structure for a multicast IP address.
|
||
|
|
typedef struct ARPMCastAddr {
|
||
|
|
struct ARPMCastAddr *ama_next; // Next in list.
|
||
|
|
IPAddr ama_addr; // The (masked) address.
|
||
|
|
uint ama_refcnt; // Reference count for this address.
|
||
|
|
} ARPMCastAddr;
|
||
|
|
|
||
|
|
#define ARP_MCAST_MASK 0xffff7f00
|
||
|
|
|
||
|
|
#define ARP_TIMER_TIME 1000L
|
||
|
|
#define ARP_RESOLVE_TIMEOUT 1000L
|
||
|
|
#define ARP_MIN_VALID_TIMEOUT 600000L
|
||
|
|
#define ARP_REFRESH_TIME 2000L
|
||
|
|
|
||
|
|
#if FFP_SUPPORT
|
||
|
|
#define FFP_ARP_FLUSH_INTERVAL 300 // Time (in s) after which ARP forces an FFP
|
||
|
|
// flush (inorder to keep the ARP cache and
|
||
|
|
// FFP's MAC Addr mapping in limited sync)
|
||
|
|
#endif
|
||
|
|
|
||
|
|
typedef struct ARPNotifyStruct {
|
||
|
|
CTEEvent ans_event;
|
||
|
|
uint ans_shutoff;
|
||
|
|
IPAddr ans_addr;
|
||
|
|
uint ans_hwaddrlen;
|
||
|
|
uchar ans_hwaddr[1];
|
||
|
|
} ARPNotifyStruct;
|
||
|
|
|
||
|
|
//* Structure of information we keep on a per-interface basis.
|
||
|
|
typedef struct ARPInterface {
|
||
|
|
LIST_ENTRY ai_linkage; // to link into ARP interface list
|
||
|
|
void *ai_context; // Upper layer context info.
|
||
|
|
#if FFP_SUPPORT
|
||
|
|
NDIS_HANDLE ai_driver; // NDIS Miniport/MAC driver handle
|
||
|
|
#endif
|
||
|
|
NDIS_HANDLE ai_handle; // NDIS bind handle.
|
||
|
|
NDIS_MEDIUM ai_media; // Media type.
|
||
|
|
NDIS_HANDLE ai_ppool; // Handle for packet pool.
|
||
|
|
DEFINE_LOCK_STRUCTURE(ai_lock) // Lock for this structure.
|
||
|
|
DEFINE_LOCK_STRUCTURE(ai_ARPTblLock) // ARP Table lock for this structure.
|
||
|
|
ARPTable *ai_ARPTbl; // Pointer to the ARP table for this interface
|
||
|
|
ARPIPAddr ai_ipaddr; // Local IP address list.
|
||
|
|
ARPPArpAddr *ai_parpaddr; // Proxy ARP address list.
|
||
|
|
IPAddr ai_bcast; // Broadcast mask for this interface.
|
||
|
|
// SNMP required counters
|
||
|
|
uint ai_inoctets; // Input octets.
|
||
|
|
uint ai_inpcount[3]; // Count of nonunicast, unicast & promiscuous
|
||
|
|
// packets received.
|
||
|
|
uint ai_outoctets; // Output octets
|
||
|
|
uint ai_outpcount[2];// Count of nonunicast and unicast
|
||
|
|
// packets sent.
|
||
|
|
uint ai_qlen; // Output q length.
|
||
|
|
uchar ai_addr[ARP_802_ADDR_LENGTH]; // Local HW address.
|
||
|
|
uchar ai_state; // State of the interface. Union of
|
||
|
|
// admin and operational states.
|
||
|
|
uchar ai_addrlen; // Length of ai_addr.
|
||
|
|
uchar ai_bcastmask; // Mask for checking unicast.
|
||
|
|
uchar ai_bcastval; // Value to check against.
|
||
|
|
uchar ai_bcastoff; // Offset in frame to check against.
|
||
|
|
uchar ai_hdrsize; // Size of 'typical' header.
|
||
|
|
uchar ai_snapsize; // Size of snap header, if any.
|
||
|
|
uchar ai_pad[2]; // PAD PAD
|
||
|
|
uint ai_pfilter; // Packet filter for this i/f.
|
||
|
|
uint ai_count; // Number of entries in the ARPTable.
|
||
|
|
uint ai_parpcount; // Number of proxy ARP entries.
|
||
|
|
CTETimer ai_timer; // ARP timer for this interface.
|
||
|
|
|
||
|
|
BOOLEAN ai_timerstarted;// ARP timer started for this interface?
|
||
|
|
BOOLEAN ai_stoptimer; // ARP timer started for this interface?
|
||
|
|
CTEBlockStruc ai_timerblock; // used to sync stopping the interface timer
|
||
|
|
|
||
|
|
CTEBlockStruc ai_block; // Structure for blocking on.
|
||
|
|
ushort ai_mtu; // MTU for this interface.
|
||
|
|
uchar ai_adminstate; // Admin state.
|
||
|
|
uchar ai_operstate; // Operational state;
|
||
|
|
uint ai_speed; // Speed.
|
||
|
|
uint ai_lastchange; // Last change time.
|
||
|
|
uint ai_indiscards; // In discards.
|
||
|
|
uint ai_inerrors; // Input errors.
|
||
|
|
uint ai_uknprotos; // Unknown protocols received.
|
||
|
|
uint ai_outdiscards; // Output packets discarded.
|
||
|
|
uint ai_outerrors; // Output errors.
|
||
|
|
uint ai_desclen; // Length of desc. string.
|
||
|
|
uint ai_index; // Global I/F index ID.
|
||
|
|
uint ai_atinst; // AT instance number.
|
||
|
|
uint ai_ifinst; // IF instance number.
|
||
|
|
char *ai_desc; // Descriptor string.
|
||
|
|
ARPMCastAddr *ai_mcast; // Multicast list.
|
||
|
|
uint ai_mcastcnt; // Count of elements on mcast list.
|
||
|
|
uint ai_ipaddrcnt; // number of local address on this
|
||
|
|
uint ai_telladdrchng;// tell link layer about addr change? (for psched)
|
||
|
|
ULONG ai_mediatype;
|
||
|
|
uint ai_promiscuous; // promiscuous mode or not.
|
||
|
|
#if FFP_SUPPORT
|
||
|
|
ulong ai_ffpversion; // The version of FFP in use (0 implies no support)
|
||
|
|
uint ai_ffplastflush;// Number of timer ticks since arp's last FFP flush
|
||
|
|
#endif
|
||
|
|
ARPNotifyStruct *ai_conflict;
|
||
|
|
uint ai_delay;
|
||
|
|
uint ai_OffloadFlags;// H/W checksum capability flag
|
||
|
|
NDIS_TASK_TCP_LARGE_SEND ai_TcpLargeSend;
|
||
|
|
NDIS_PNP_CAPABILITIES ai_wakeupcap; // wakeup capabilities.
|
||
|
|
NDIS_STRING ai_devicename; // Name of the device.
|
||
|
|
} ARPInterface;
|
||
|
|
|
||
|
|
|
||
|
|
//* NOTE: These two values MUST stay at 0 and 1.
|
||
|
|
#define AI_UCAST_INDEX 0
|
||
|
|
#define AI_NONUCAST_INDEX 1
|
||
|
|
#define AI_PROMIS_INDEX 2
|
||
|
|
|
||
|
|
#define ARP_DEFAULT_PACKETS 10
|
||
|
|
|
||
|
|
//* Structure of information passed as context in RCE.
|
||
|
|
typedef struct ARPContext {
|
||
|
|
RouteCacheEntry *ac_next; // Next RCE in ARP table chain.
|
||
|
|
ARPTableEntry *ac_ate; // Back pointer to ARP table entry.
|
||
|
|
} ARPContext;
|
||
|
|
|
||
|
|
typedef struct IPNMEContext {
|
||
|
|
uint inc_index;
|
||
|
|
ARPTableEntry *inc_entry;
|
||
|
|
} IPNMEContext;
|
||
|
|
|
||
|
|
#include <packon.h>
|
||
|
|
// Structure of an ARP header.
|
||
|
|
typedef struct ARPHeader {
|
||
|
|
ushort ah_hw; // Hardware address space.
|
||
|
|
ushort ah_pro; // Protocol address space.
|
||
|
|
uchar ah_hlen; // Hardware address length.
|
||
|
|
uchar ah_plen; // Protocol address length.
|
||
|
|
ushort ah_opcode; // Opcode.
|
||
|
|
uchar ah_shaddr[ARP_802_ADDR_LENGTH]; // Source HW address.
|
||
|
|
IPAddr ah_spaddr; // Source protocol address.
|
||
|
|
uchar ah_dhaddr[ARP_802_ADDR_LENGTH]; // Destination HW address.
|
||
|
|
IPAddr ah_dpaddr; // Destination protocol address.
|
||
|
|
} ARPHeader;
|
||
|
|
#include <packoff.h>
|
||
|
|
|
||
|
|
#define ARP_ETYPE_IP 0x800
|
||
|
|
#define ARP_ETYPE_ARP 0x806
|
||
|
|
#define ARP_REQUEST 1
|
||
|
|
#define ARP_RESPONSE 2
|
||
|
|
#define ARP_HW_ENET 1
|
||
|
|
#define ARP_HW_802 6
|
||
|
|
#define ARP_HW_ARCNET 7
|
||
|
|
|
||
|
|
#define ARP_ARCPROT_ARP 0xd5
|
||
|
|
#define ARP_ARCPROT_IP 0xd4
|
||
|
|
|
||
|
|
// The size we need to back off the buffer length because ARCNet address
|
||
|
|
// are one bytes instead of six.
|
||
|
|
#define ARCNET_ARPHEADER_ADJUSTMENT 10
|
||
|
|
|
||
|
|
typedef struct _AddAddrNotifyEvent {
|
||
|
|
CTEEvent Event;
|
||
|
|
SetAddrControl *SAC;
|
||
|
|
IPAddr Address;
|
||
|
|
IP_STATUS Status;
|
||
|
|
} AddAddrNotifyEvent;
|
||
|
|
|
||
|
|
|
||
|
|
// Compute the length of the wakeup pattern mask based on the length
|
||
|
|
// of the pattern. See NET_PM_WAKEUP_PATTERN_DESC.
|
||
|
|
//
|
||
|
|
__inline
|
||
|
|
UINT
|
||
|
|
GetWakeupPatternMaskLength(
|
||
|
|
IN UINT Ptrnlen)
|
||
|
|
{
|
||
|
|
return (Ptrnlen - 1)/8 + 1;
|
||
|
|
}
|
||
|
|
|
||
|
|
|