536 lines
19 KiB
C
536 lines
19 KiB
C
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/*++
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Copyright(c) 1998,99 Microsoft Corporation
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Module Name:
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wlbsip.h
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Abstract:
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Windows Load Balancing Service (WLBS)
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IP/TCP/UDP support
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Author:
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kyrilf
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Environment:
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Revision History:
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--*/
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#ifndef _Tcpip_h_
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#define _Tcpip_h_
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#ifdef KERNEL_MODE
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#include <ndis.h>
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#endif
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#pragma pack(1)
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/* type structures for basic protocols */
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typedef struct
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{
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UCHAR byte [20];
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}
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IP_HDR, * PIP_HDR;
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typedef struct
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{
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UCHAR byte [24];
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}
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TCP_HDR, * PTCP_HDR;
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typedef struct
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{
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UCHAR byte [8];
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}
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UDP_HDR, * PUDP_HDR;
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typedef struct
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{
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UCHAR byte [28];
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}
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ARP_HDR, * PARP_HDR;
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#define TCPIP_BCAST_ADDR 0xffffffff /* IP broadcast address */
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#define TCPIP_CLASSC_MASK 0x00ffffff /* IP address Class C mask */
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/* protocol type signatures carried in the length field of Ethernet frame */
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#define TCPIP_IP_SIG 0x0800 /* IP protocol */
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#define TCPIP_ARP_SIG 0x0806 /* ARP/RARP protocol */
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/* supported IP version */
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#define TCPIP_VERSION 4 /* current IP version */
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/* protocol types as encoded in IP header */
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#define TCPIP_PROTOCOL_IP 0 /* Internet protocol id */
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#define TCPIP_PROTOCOL_ICMP 1 /* Internet control message protocol id */
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#define TCPIP_PROTOCOL_IGMP 2 /* Internet gateway message protocol id */
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#define TCPIP_PROTOCOL_GGP 3 /* Gateway-gateway protocol id */
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#define TCPIP_PROTOCOL_TCP 6 /* Transmission control protocol id */
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#define TCPIP_PROTOCOL_EGP 8 /* Exterior gateway protocol id */
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#define TCPIP_PROTOCOL_PUP 12 /* PARC universal packet protocol id */
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#define TCPIP_PROTOCOL_UDP 17 /* user datagram protocol id */
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#define TCPIP_PROTOCOL_HMP 20 /* Host monitoring protocol id */
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#define TCPIP_PROTOCOL_XNS_IDP 22 /* Xerox NS IDP protocol id */
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#define TCPIP_PROTOCOL_RDP 27 /* Reliable datagram protocol id */
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#define TCPIP_PROTOCOL_RVD 66 /* MIT remote virtual disk protocol id */
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#define TCPIP_PROTOCOL_RAW_IP 255 /* raw IP protocol id */
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#define TCPIP_PROTOCOL_GRE 47 /* PPTP's GRE stream */
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#define TCPIP_PROTOCOL_IPSEC1 50 /* IPSEC's data stream */
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#define TCPIP_PROTOCOL_IPSEC2 51 /* IPSEC's data stream */
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#define IP_ADDR_LEN 4 /* in bytes */
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#if defined (NLB_SESSION_SUPPORT)
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/* Stolen from net\ipsec\oakley\ikedef.h and net\ipsec\oakley\isakmp.h. */
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#if defined (SBH)
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#define COOKIE_LEN 8
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typedef struct isakmp_hdr_ {
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unsigned char init_cookie[COOKIE_LEN];
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unsigned char resp_cookie[COOKIE_LEN];
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unsigned char next_payload;
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#ifdef ISAKMP_i386
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unsigned char minver:4,
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majver:4;
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#else
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unsigned char majver:4,
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minver:4;
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#endif
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unsigned char exch;
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unsigned char flags;
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unsigned long mess_id;
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unsigned long len;
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} isakmp_hdr;
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typedef struct generic_payload_ {
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unsigned char next_payload;
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unsigned char reserved;
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unsigned short payload_len;
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} generic_payload;
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typedef struct vendor_payload_ {
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unsigned char next_payload;
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unsigned char reserved;
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unsigned short payload_len;
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unsigned char vendor_id[1];
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} generic_payload;
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typedef struct notify_payload_ {
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unsigned char next_payload;
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unsigned char reserved;
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unsigned short payload_len;
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unsigned long doi;
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unsigned char protocol_id;
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unsigned char spi_size;
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unsigned short notify_message;
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}
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#endif
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/* IPSec/IKE header macros. */
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#define IPSEC_ISAKMP_SA 1
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#define IPSEC_ISAKMP_VENDOR_ID 13
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#define IPSEC_ISAKMP_NOTIFY 11
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#define IPSEC_ISAKMP_MAIN_MODE_RCOOKIE {0x00, 0x00, 0x00, 0x00, 0x00, 0x00, 0x00, 0x00}
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#define IPSEC_ISAKMP_ENCAPSULATED_IPSEC_ICOOKIE {0x00, 0x00, 0x00, 0x00, 0x00, 0x00, 0x00, 0x00}
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#define IPSEC_ISAKMP_HEADER_LENGTH 28
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#define IPSEC_ISAKMP_HEADER_ICOOKIE_OFFSET 0
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#define IPSEC_ISAKMP_HEADER_ICOOKIE_LENGTH 8
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#define IPSEC_ISAKMP_HEADER_RCOOKIE_OFFSET 8
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#define IPSEC_ISAKMP_HEADER_RCOOKIE_LENGTH 8
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#define IPSEC_ISAKMP_HEADER_NEXT_PAYLOAD_OFFSET 16
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#define IPSEC_ISAKMP_HEADER_PACKET_LENGTH_OFFSET 24
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typedef struct {
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UCHAR byte[IPSEC_ISAKMP_HEADER_LENGTH];
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} IPSEC_ISAKMP_HDR, * PIPSEC_ISAKMP_HDR;
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#define IPSEC_ISAKMP_GET_ICOOKIE_POINTER(isakmp_hdrp) ((PUCHAR)isakmp_hdrp + IPSEC_ISAKMP_HEADER_ICOOKIE_OFFSET)
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#define IPSEC_ISAKMP_GET_RCOOKIE_POINTER(isakmp_hdrp) ((PUCHAR)isakmp_hdrp + IPSEC_ISAKMP_HEADER_RCOOKIE_OFFSET)
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#define IPSEC_ISAKMP_GET_NEXT_PAYLOAD(isakmp_hdrp) ((UCHAR)((isakmp_hdrp)->byte[IPSEC_ISAKMP_HEADER_NEXT_PAYLOAD_OFFSET]))
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#define IPSEC_ISAKMP_GET_PACKET_LENGTH(isakmp_hdrp) ((ULONG)(((isakmp_hdrp)->byte[IPSEC_ISAKMP_HEADER_PACKET_LENGTH_OFFSET] << 24) | \
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((isakmp_hdrp)->byte[IPSEC_ISAKMP_HEADER_PACKET_LENGTH_OFFSET + 1] << 16) | \
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((isakmp_hdrp)->byte[IPSEC_ISAKMP_HEADER_PACKET_LENGTH_OFFSET + 2] << 8) | \
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((isakmp_hdrp)->byte[IPSEC_ISAKMP_HEADER_PACKET_LENGTH_OFFSET + 3] << 0)))
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#define IPSEC_GENERIC_HEADER_LENGTH 4
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#define IPSEC_GENERIC_HEADER_NEXT_PAYLOAD_OFFSET 0
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#define IPSEC_GENERIC_HEADER_PAYLOAD_LENGTH_OFFSET 2
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typedef struct {
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UCHAR byte[IPSEC_GENERIC_HEADER_LENGTH];
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} IPSEC_GENERIC_HDR, * PIPSEC_GENERIC_HDR;
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#define IPSEC_GENERIC_GET_NEXT_PAYLOAD(generic_hdrp) ((UCHAR)((generic_hdrp)->byte[IPSEC_GENERIC_HEADER_NEXT_PAYLOAD_OFFSET]))
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#define IPSEC_GENERIC_GET_PAYLOAD_LENGTH(generic_hdrp) ((USHORT)(((generic_hdrp)->byte[IPSEC_GENERIC_HEADER_PAYLOAD_LENGTH_OFFSET] << 8) | \
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((generic_hdrp)->byte[IPSEC_GENERIC_HEADER_PAYLOAD_LENGTH_OFFSET + 1] << 0)))
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#define IPSEC_VENDOR_ID_MICROSOFT {0x1E, 0x2B, 0x51, 0x69, 0x05, 0x99, 0x1C, 0x7D, 0x7C, 0x96, 0xFC, 0xBF, 0xB5, 0x87, 0xE4, 0x61}
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#define IPSEC_VENDOR_ID_MICROSOFT_MIN_VERSION 0x00000004
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#define IPSEC_VENDOR_ID_PAYLOAD_LENGTH 20
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#define IPSEC_VENDOR_HEADER_VENDOR_ID_OFFSET 4
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#define IPSEC_VENDOR_HEADER_VENDOR_ID_LENGTH 16
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#define IPSEC_VENDOR_HEADER_VENDOR_VERSION_OFFSET 20
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#define IPSEC_VENDOR_HEADER_VENDOR_VERSION_LENGTH 4
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typedef struct {
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UCHAR byte[IPSEC_GENERIC_HEADER_LENGTH + IPSEC_VENDOR_ID_PAYLOAD_LENGTH];
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} IPSEC_VENDOR_HDR, * PIPSEC_VENDOR_HDR;
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#define IPSEC_VENDOR_ID_GET_ID_POINTER(vendor_hdrp) ((PUCHAR)vendor_hdrp + IPSEC_VENDOR_HEADER_VENDOR_ID_OFFSET)
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#define IPSEC_VENDOR_ID_GET_VERSION(vendor_hdrp) ((ULONG)(((vendor_hdrp)->byte[IPSEC_VENDOR_HEADER_VENDOR_VERSION_OFFSET] << 24) | \
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((vendor_hdrp)->byte[IPSEC_VENDOR_HEADER_VENDOR_VERSION_OFFSET + 1] << 16) | \
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((vendor_hdrp)->byte[IPSEC_VENDOR_HEADER_VENDOR_VERSION_OFFSET + 2] << 8) | \
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((vendor_hdrp)->byte[IPSEC_VENDOR_HEADER_VENDOR_VERSION_OFFSET + 3] << 0)))
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#define IPSEC_NOTIFY_INITIAL_CONTACT 24578
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#define IPSEC_NOTIFY_PAYLOAD_LENGTH 8
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#define IPSEC_NOTIFY_HEADER_NOTIFY_MESSAGE_OFFSET 10
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typedef struct {
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UCHAR byte[IPSEC_GENERIC_HEADER_LENGTH + IPSEC_NOTIFY_PAYLOAD_LENGTH];
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} IPSEC_NOTIFY_HDR, * PIPSEC_NOTIFY_HDR;
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#define IPSEC_NOTIFY_GET_NOTIFY_MESSAGE(notify_hdrp) ((USHORT)(((notify_hdrp)->byte[IPSEC_NOTIFY_HEADER_NOTIFY_MESSAGE_OFFSET] << 8) | \
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((notify_hdrp)->byte[IPSEC_NOTIFY_HEADER_NOTIFY_MESSAGE_OFFSET + 1] << 0)))
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#endif
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/* ARP header macros - note address locations assume 6 byte MAC (Ethernet)
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and 4 byte protocol (IP) sizes */
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/* type of hardware address */
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#define ARP_GET_MAC_TYPE(p) (((ULONG) ((p) -> byte[0]) << 8) | (ULONG) ((p) -> byte[1]))
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/* higher layer addressing protocol */
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#define ARP_GET_PROT_TYPE(p) (((ULONG) ((p) -> byte[2]) << 8) | (ULONG) ((p) -> byte[3]))
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/* length of hardware address */
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#define ARP_GET_MAC_LEN(p) ((ULONG) ((p) -> byte[4]))
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/* length of higher layer address */
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#define ARP_GET_PROT_LEN(p) ((ULONG) ((p) -> byte[5]))
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/* type of message */
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#define ARP_GET_MSG_TYPE(p) (((ULONG) ((p) -> byte[6]) << 8) | (ULONG) ((p) -> byte[7]))
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/* source hardware address */
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#define ARP_GET_SRC_MAC_PTR(p) (&((p) -> byte[8]))
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#define ARP_GET_SRC_MAC(p,n) ((ULONG) ((p) -> byte[8 + (n)]))
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/* source higher layer address */
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#define ARP_GET_SRC_PROT(p,n) ((ULONG) ((p) -> byte[14 + (n)]))
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#define ARP_GET_SRC_FPROT(p) (* ((PULONG) &((p) -> byte[14])))
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/* 64-bit -- ramkrish */
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#define ARP_GET_SRC_PROT_64(p) ((ULONG) (((p) -> byte[14] << 0) | ((p) -> byte[15] << 8) | \
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((p) -> byte[16] << 16) | ((p) -> byte[17] << 24)))
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/* destination hardware address */
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#define ARP_GET_DST_MAC_PTR(p) (&((p) -> byte[18]))
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#define ARP_GET_DST_MAC(p,n) ((ULONG) ((p) -> byte[18 + (n)]))
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/* destination higher layer address */
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#define ARP_GET_DST_PROT(p,n) ((ULONG) ((p) -> byte[24 + (n)]))
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#define ARP_GET_DST_FPROT(p) (* ((PULONG) &((p) -> byte[24])))
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/* 64-bit -- ramkrish */
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#define ARP_GET_DST_PROT_64(p) ((ULONG) (((p) -> byte[18] << 0) | ((p) -> byte[19] << 8) | \
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((p) -> byte[20] << 16) | ((p) -> byte[21] << 24)))
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#define ARP_MAC_TYPE_ETH 0x0001
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#define ARP_PROT_TYPE_IP 0x0800
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#define ARP_MAC_LEN_ETH 6
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#define ARP_PROT_LEN_IP 4
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#define ARP_MSG_TYPE_REQ 0x1
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#define ARP_MSG_TYPE_RSP 0x2
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/* IP datagram header macros */
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/* IP version number */
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#define IP_GET_VERS(p) ((ULONG) ((((p) -> byte[0]) >> 4) & 0xf))
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/* header length in 32-bit words */
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#define IP_GET_HLEN(p) ((ULONG) (((p) -> byte[0]) & 0xf))
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/* service type */
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#define IP_GET_SRVC(p) ((ULONG) ((p) -> byte[1]))
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/* total datagram packet length in bytes */
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#define IP_GET_PLEN(p) (((ULONG) ((p) -> byte[2]) << 8) | (ULONG) ((p) -> byte[3]))
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/* fragmentation identification - this one seems to have bytes swaped within
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the short word ??? */
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#define IP_GET_FRAG_ID(p) (((ULONG) ((p) -> byte[5]) << 8) | (ULONG) ((p) -> byte[4]))
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/* fragmentation flags */
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#define IP_GET_FRAG_FLGS(p) ((ULONG) ((((p) -> byte[6]) >> 5) & 0x7))
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/* fragmentation offset */
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#define IP_GET_FRAG_OFF(p) (((ULONG) ((p) -> byte[6] & 0x1f) << 8) | (ULONG) ((p) -> byte[7]))
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/* Time To Live in seconds */
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#define IP_GET_TTL(p) ((ULONG) ((p) -> byte[8]))
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/* higher level protocol id */
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#define IP_GET_PROT(p) ((ULONG) ((p) -> byte[9]))
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/* header checksum - this one seems to have bytes swaped within
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the short word ??? */
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#define IP_GET_CHKSUM(p) (((USHORT) ((p) -> byte[10]) << 8) | (USHORT) ((p) -> byte[11]))
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#define IP_SET_CHKSUM(p,c) (((p) -> byte[10] = (c) >> 8), ((p) -> byte[11] = (c) & 0xff))
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/* source IP address */
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#define IP_GET_SRC_ADDR(p,n) ((ULONG) ((p) -> byte[12 + (n)]))
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#define IP_GET_SRC_ADDR_PTR(p) (&((p) -> byte[12]))
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#define IP_GET_SRC_FADDR(p) (* ((PULONG) &((p) -> byte[12]))) /* 64-bit -- ramkrish */
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#ifdef _WIN64
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#define IP_GET_SRC_ADDR_64(p) ((ULONG) (((p) -> byte[12] << 0) | ((p) -> byte[13] << 8) | \
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((p) -> byte[14] << 16) | ((p) -> byte[15] << 24)))
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#else
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// This is faster than the one above. This function is called in critical receiving path
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#define IP_GET_SRC_ADDR_64(p) (* ((PULONG) &((p) -> byte[12])))
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#endif
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/* destination IP address */
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#define IP_GET_DST_ADDR(p,n) ((ULONG) ((p) -> byte[16 + (n)]))
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#ifdef _WIN64
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#define IP_GET_DST_ADDR_64(p) ((ULONG) (((p) -> byte[16] << 0) | ((p) -> byte[17] << 8) | \
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((p) -> byte[18] << 16) | ((p) -> byte[19] << 24)))
|
||
|
|
#else
|
||
|
|
// This is faster than the one above. This function is called in critical receiving path
|
||
|
|
#define IP_GET_DST_ADDR_64(p) (* ((PULONG) &((p) -> byte[16])))
|
||
|
|
#endif
|
||
|
|
|
||
|
|
|
||
|
|
/* 64-bit -- ramkrish */
|
||
|
|
|
||
|
|
#define IP_SET_SRC_ADDR_64(p,c) { \
|
||
|
|
PUCHAR tmp = (PUCHAR) (&(c)); \
|
||
|
|
(p) -> byte[12] = tmp[0]; (p) -> byte[13] = tmp[1]; \
|
||
|
|
(p) -> byte[14] = tmp[2]; (p) -> byte[15] = tmp[3]; \
|
||
|
|
}
|
||
|
|
|
||
|
|
#define IP_SET_DST_ADDR_64(p,c) { \
|
||
|
|
PUCHAR tmp = (PUCHAR) (&(c)); \
|
||
|
|
(p) -> byte[16] = tmp[0]; (p) -> byte[17] = tmp[1]; \
|
||
|
|
(p) -> byte[18] = tmp[2]; (p) -> byte[19] = tmp[3]; \
|
||
|
|
}
|
||
|
|
|
||
|
|
/* create IP address from 4 bytes */
|
||
|
|
#define IP_SET_ADDR(p,b0,b1,b2,b3) (* (p) = (((b0) << 0) | ((b1) << 8) | ((b2) << 16) | ((b3) << 24)))
|
||
|
|
|
||
|
|
/* compute broadcast address from IP address and netmask */
|
||
|
|
#define IP_SET_BCAST(p,a,m) (* (p) = ((a) & (m)) | (~(m)))
|
||
|
|
|
||
|
|
|
||
|
|
/* TCP header macros */
|
||
|
|
|
||
|
|
|
||
|
|
/* pointer to TCP header from IP header pointer */
|
||
|
|
#define TCP_PTR(p) ((PTCP_HDR)(((ULONG *)(p)) + ((ULONG)IP_GET_HLEN(p))))
|
||
|
|
|
||
|
|
/* source port */
|
||
|
|
#define TCP_GET_SRC_PORT(p) (((ULONG) ((p) -> byte[0]) << 8) | (ULONG) ((p) -> byte[1]))
|
||
|
|
#define TCP_GET_SRC_PORT_PTR(p) (& ((p) -> byte[0])) /* 64-bit -- ramkrish */
|
||
|
|
|
||
|
|
/* destination port */
|
||
|
|
#define TCP_GET_DST_PORT(p) (((ULONG) ((p) -> byte[2]) << 8) | (ULONG) ((p) -> byte[3]))
|
||
|
|
#define TCP_GET_DST_PORT_PTR(p) (& ((p) -> byte[2])) /* 64-bit -- ramkrish */
|
||
|
|
|
||
|
|
/* sequence number */
|
||
|
|
#define TCP_GET_SEQ_NO(p) (((ULONG) ((p) -> byte[4]) << 24) | ((ULONG) ((p) -> byte[5]) << 16) | \
|
||
|
|
((ULONG) ((p) -> byte[6]) << 8) | (ULONG) ((p) -> byte[7]))
|
||
|
|
|
||
|
|
/* acknowledgement number */
|
||
|
|
#define TCP_GET_ACK_NO(p) (((ULONG) ((p) -> byte[8]) << 24) | ((ULONG) ((p) -> byte[9]) << 16) | \
|
||
|
|
((ULONG) ((p) -> byte[10]) << 8) | (ULONG) ((p) -> byte[11]))
|
||
|
|
|
||
|
|
/* flags */
|
||
|
|
#define TCP_GET_FLAGS(p) (((ULONG) ((p) -> byte[13])) & 0x3f)
|
||
|
|
|
||
|
|
/* header length in 32-bit words */
|
||
|
|
#define TCP_GET_HLEN(p) ((ULONG) (((p) -> byte[12]) >> 4))
|
||
|
|
|
||
|
|
/* datagram length */
|
||
|
|
#define TCP_GET_DGRAM_LEN(i,t) (IP_GET_PLEN (i) - ((IP_GET_HLEN (i) + TCP_GET_HLEN (t)) * sizeof (ULONG)))
|
||
|
|
|
||
|
|
/* pointer to datagram */
|
||
|
|
#define TCP_GET_DGRAM_PTR(p) ((PUCHAR)(((ULONG *)(p)) + ((ULONG) TCP_GET_HLEN(p))))
|
||
|
|
|
||
|
|
/* checksum field */
|
||
|
|
#define TCP_GET_CHKSUM(p) ((((USHORT)((p) -> byte[16])) << 8) | (USHORT)((p) -> byte[17]))
|
||
|
|
#define TCP_SET_CHKSUM(p,c) (((p) -> byte[16] = (c) >> 8), ((p) -> byte[17] = (c) & 0xff))
|
||
|
|
|
||
|
|
#define TCP_FLAG_URG 0x20
|
||
|
|
#define TCP_FLAG_ACK 0x10
|
||
|
|
#define TCP_FLAG_PSH 0x8
|
||
|
|
#define TCP_FLAG_RST 0x4
|
||
|
|
#define TCP_FLAG_SYN 0x2
|
||
|
|
#define TCP_FLAG_FIN 0x1
|
||
|
|
|
||
|
|
|
||
|
|
/* UDP header macros */
|
||
|
|
|
||
|
|
|
||
|
|
/* pointer to TCP header from IP header pointer */
|
||
|
|
#define UDP_PTR(p) ((PUDP_HDR)(((ULONG *)(p)) + ((ULONG)IP_GET_HLEN(p))))
|
||
|
|
|
||
|
|
/* source port */
|
||
|
|
#define UDP_GET_SRC_PORT(p) (((ULONG) ((p) -> byte[0]) << 8) | (ULONG) ((p) -> byte[1]))
|
||
|
|
#define UDP_GET_SRC_PORT_PTR(p) (& ((p) -> byte[0]))
|
||
|
|
#define UDP_GET_SRC_FPORT(p) (* ((PUSHORT) &((p) -> byte[0])))
|
||
|
|
|
||
|
|
/* 64-bit -- ramkrish */
|
||
|
|
#define UDP_SET_SRC_PORT_64(p,v) (((p) -> byte[0] = v >> 8), ((p) -> byte[1] = v & 0xff))
|
||
|
|
|
||
|
|
/* destination port */
|
||
|
|
#define UDP_GET_DST_PORT(p) (((ULONG) ((p) -> byte[2]) << 8) | (ULONG) ((p) -> byte[3]))
|
||
|
|
#define UDP_GET_DST_PORT_PTR(p) (& ((p) -> byte[2]))
|
||
|
|
#define UDP_GET_DST_FPORT(p) (* ((PUSHORT) &((p) -> byte[2])))
|
||
|
|
|
||
|
|
/* 64-bit -- ramkrish */
|
||
|
|
#define UDP_SET_DST_PORT_64(p,v) (((p) -> byte[2] = v >> 8), ((p) -> byte[3] = v & 0xff))
|
||
|
|
|
||
|
|
/* packet length */
|
||
|
|
#define UDP_GET_LEN(p) (((ULONG) ((p) -> byte[4]) << 8) | (ULONG) ((p) -> byte[5]))
|
||
|
|
|
||
|
|
/* packet length */
|
||
|
|
#define UDP_GET_CHKSUM(p) (((USHORT) ((p) -> byte[6]) << 8) | (USHORT) ((p) -> byte[7]))
|
||
|
|
#define UDP_SET_CHKSUM(p,c) (((p) -> byte[6] = (c) >> 8), ((p) -> byte[7] = (c) & 0xff))
|
||
|
|
|
||
|
|
/* pointer to datagram */
|
||
|
|
#define UDP_GET_DGRAM_PTR(p) ((PUCHAR)(p) + sizeof (UDP_HDR))
|
||
|
|
|
||
|
|
|
||
|
|
/* V1.11 NetBIOS name cluster name support */
|
||
|
|
|
||
|
|
|
||
|
|
#define NBT_NAME_LEN 16
|
||
|
|
#define NBT_ENCODED_NAME_LEN (2 * NBT_NAME_LEN) /* multiplier HAS to be 2 */
|
||
|
|
|
||
|
|
#define NBT_ENCODED_NAME_BASE 'A'
|
||
|
|
|
||
|
|
#define NBT_NAME_SHADOW "*SMBSERVER "
|
||
|
|
|
||
|
|
#define NBT_ENCODED_NAME_SHADOW \
|
||
|
|
{ \
|
||
|
|
'C', 'K', 'F', 'D', 'E', 'N', 'E', 'C', 'F', 'D', 'E', 'F', 'F', 'C', 'F', 'G', \
|
||
|
|
'E', 'F', 'F', 'C', 'C', 'A', 'C', 'A', 'C', 'A', 'C', 'A', 'C', 'A', 'C', 'A' \
|
||
|
|
}
|
||
|
|
|
||
|
|
#define NBT_ENCODE_FIRST(c) (((c) >> 4) + NBT_ENCODED_NAME_BASE)
|
||
|
|
#define NBT_ENCODE_SECOND(c) (((c) & 0xf) + NBT_ENCODED_NAME_BASE)
|
||
|
|
|
||
|
|
#define NBT_SESSION_PORT 139
|
||
|
|
#define NBT_SESSION_REQUEST 0x81 /* packet type */
|
||
|
|
|
||
|
|
typedef struct
|
||
|
|
{
|
||
|
|
UCHAR byte[72]; /* only the session request packet */
|
||
|
|
}
|
||
|
|
NBT_HDR, * PNBT_HDR;
|
||
|
|
|
||
|
|
/* pointer to NBT header from TCP header */
|
||
|
|
#define NBT_PTR(p) ((PNBT_HDR)(((ULONG *)(p)) + ((ULONG) TCP_GET_HLEN(p))))
|
||
|
|
|
||
|
|
/* packet type */
|
||
|
|
#define NBT_GET_PKT_TYPE(p) ((ULONG) ((p) -> byte[0]))
|
||
|
|
|
||
|
|
/* packet length */
|
||
|
|
#define NBT_GET_PKT_LEN(p) ((ULONG) ((p) -> byte[3]))
|
||
|
|
|
||
|
|
/* called name */
|
||
|
|
#define NBT_GET_CALLED_NAME(p) ((PUCHAR) & ((p) -> byte[4])) /* server's name */
|
||
|
|
|
||
|
|
/* calling name */
|
||
|
|
#define NBT_GET_CALLING_NAME(p) ((PUCHAR) & ((p) -> byte[36])) /* client's name */
|
||
|
|
|
||
|
|
|
||
|
|
/* PPTP/IPSEC support */
|
||
|
|
|
||
|
|
#define PPTP_CTRL_PORT 1723
|
||
|
|
#define IPSEC_CTRL_PORT 500
|
||
|
|
|
||
|
|
#pragma pack()
|
||
|
|
|
||
|
|
|
||
|
|
/* TCPIP module context */
|
||
|
|
|
||
|
|
|
||
|
|
typedef struct
|
||
|
|
{
|
||
|
|
UCHAR nbt_encoded_cluster_name [NBT_ENCODED_NAME_LEN]; /* V1.2 */
|
||
|
|
}
|
||
|
|
TCPIP_CTXT, * PTCPIP_CTXT;
|
||
|
|
|
||
|
|
|
||
|
|
/* PROCEDURES */
|
||
|
|
|
||
|
|
|
||
|
|
extern BOOLEAN Tcpip_init (
|
||
|
|
PTCPIP_CTXT ctxtp,
|
||
|
|
PVOID params);
|
||
|
|
/*
|
||
|
|
Initialize module
|
||
|
|
|
||
|
|
returns BOOLEAN:
|
||
|
|
TRUE => success
|
||
|
|
FALSE => failure
|
||
|
|
|
||
|
|
function:
|
||
|
|
*/
|
||
|
|
|
||
|
|
|
||
|
|
extern VOID Tcpip_nbt_handle (
|
||
|
|
PTCPIP_CTXT ctxtp,
|
||
|
|
PIP_HDR ip_hdrp,
|
||
|
|
PTCP_HDR tcp_hdrp,
|
||
|
|
ULONG len,
|
||
|
|
PNBT_HDR nbt_hdrp);
|
||
|
|
/*
|
||
|
|
Process NBT header and mask cluster name with shadow name
|
||
|
|
|
||
|
|
returns VOID:
|
||
|
|
|
||
|
|
function:
|
||
|
|
*/
|
||
|
|
|
||
|
|
|
||
|
|
extern USHORT Tcpip_chksum (
|
||
|
|
PTCPIP_CTXT ctxtp,
|
||
|
|
PIP_HDR ip_hdrp,
|
||
|
|
PUCHAR prot_hdrp,
|
||
|
|
ULONG prot);
|
||
|
|
/*
|
||
|
|
Produce IP, TCP or UDL checksums for specified protocol header
|
||
|
|
|
||
|
|
returns USHORT:
|
||
|
|
<checksum>
|
||
|
|
|
||
|
|
function:
|
||
|
|
*/
|
||
|
|
|
||
|
|
|
||
|
|
#endif /* _Tcpip_h_ */
|