- add netmap-libpcap

- add netmap (FreeBSD header files need to be updated with this)
- move prototype perl scripts to prototype/ folder
- create basic structure for sipcap app (no code yet)

netmap-libpcap/msdos/ndis_0.asm

@@ -0,0 +1,188 @@
+PAGE 60,132
+NAME NDIS_0
+
+ifdef DOSX
+  .386
+  _TEXT   SEGMENT PUBLIC DWORD USE16 'CODE'
+  _TEXT   ENDS
+  _DATA   SEGMENT PUBLIC DWORD USE16 'CODE'
+  _DATA   ENDS
+  _TEXT32 SEGMENT PUBLIC BYTE  USE32 'CODE'
+  _TEXT32 ENDS
+  CB_DSEG EQU <CS>                          ; DOSX is tiny-model
+  D_SEG   EQU <_TEXT SEGMENT>
+  D_END   EQU <_TEXT ENDS>
+  ASSUME  CS:_TEXT,DS:_TEXT
+
+  PUSHREGS equ <pushad>
+  POPREGS  equ <popad>
+
+  PUBPROC macro name
+          align 4
+          public @&name
+          @&name label near
+          endm
+else
+  .286
+  _TEXT   SEGMENT PUBLIC DWORD 'CODE'
+  _TEXT   ENDS
+  _DATA   SEGMENT PUBLIC DWORD 'DATA'
+  _DATA   ENDS
+  CB_DSEG EQU <SEG _DATA>                   ; 16bit is small/large model
+  D_SEG   EQU <_DATA SEGMENT>
+  D_END   EQU <_DATA ENDS>
+  ASSUME  CS:_TEXT,DS:_DATA
+
+  PUSHREGS equ <pusha>
+  POPREGS  equ <popa>
+
+  PUBPROC  macro name
+           public _&name
+           _&name label far
+           endm
+endif
+
+;-------------------------------------------
+
+D_SEG
+
+D_END
+
+
+_TEXT SEGMENT
+
+EXTRN _NdisSystemRequest      : near
+EXTRN _NdisRequestConfirm     : near
+EXTRN _NdisTransmitConfirm    : near
+EXTRN _NdisReceiveLookahead   : near
+EXTRN _NdisIndicationComplete : near
+EXTRN _NdisReceiveChain       : near
+EXTRN _NdisStatusProc         : near
+EXTRN _NdisAllocStack         : near
+EXTRN _NdisFreeStack          : near
+
+;
+; *ALL* interrupt threads come through this macro.
+;
+CALLBACK macro callbackProc, argsSize
+
+     pushf
+     PUSHREGS                ;; Save the registers
+
+     push es
+     push ds
+     mov  ax,CB_DSEG         ;; Load DS
+     mov  ds,ax
+     call _NdisAllocStack    ;; Get and install a stack.
+
+     mov  bx,ss              ;; Save off the old stack in other regs
+     mov  cx,sp
+     mov  ss,dx              ;; Install the new one
+     mov  sp,ax
+     push bx                 ;; Save the old one on to the new stack
+     push cx
+     sub  sp,&argsSize       ;; Allocate space for arguments on the stack
+
+     mov  ax,ss              ;; Set up the destination for the move
+     mov  es,ax
+     mov  di,sp
+     mov  ds,bx              ;; Set up the source for the move.
+     mov  si,cx
+     add  si,4+6+32
+
+     mov  cx,&argsSize       ;; Move the arguments to the stack.
+     shr  cx,1
+     cld
+     rep  movsw
+
+     mov  ax,CB_DSEG         ;; Set my data segment again.
+     mov  ds,ax
+
+     call &callbackProc      ;; Call the real callback.
+     pop  di                 ;; Pop off the old stack
+     pop  si
+     mov  bx,ss              ;; Save off the current allocated stack.
+     mov  cx,sp
+     mov  ss,si              ;; Restore the old stack
+     mov  sp,di
+     push ax                 ;; Save the return code
+     push bx                 ;; Free the stack. Push the pointer to it
+     push cx
+     call _NdisFreeStack
+     add  sp,4
+     pop  ax                 ;; Get the return code back
+     add  di,32              ;; Get a pointer to ax on the stack
+     mov  word ptr ss:[di],ax
+     pop  ds
+     pop  es
+
+     POPREGS
+     popf
+endm
+
+;
+; Define all of the callbacks for the NDIS procs.
+;
+
+PUBPROC systemRequestGlue
+CALLBACK _NdisSystemRequest,14
+RETF
+
+PUBPROC requestConfirmGlue
+CALLBACK _NdisRequestConfirm,12
+RETF
+
+PUBPROC transmitConfirmGlue
+CALLBACK _NdisTransmitConfirm,10
+RETF
+
+PUBPROC receiveLookaheadGlue
+CALLBACK _NdisReceiveLookahead,16
+RETF
+
+PUBPROC indicationCompleteGlue
+CALLBACK _NdisIndicationComplete,4
+RETF
+
+PUBPROC receiveChainGlue
+CALLBACK _NdisReceiveChain,16
+RETF
+
+PUBPROC statusGlue
+CALLBACK _NdisStatusProc,12
+RETF
+
+;
+; int FAR NdisGetLinkage (int handle, char *data, int size);
+;
+
+ifdef DOSX
+  PUBPROC NdisGetLinkage
+          push ebx
+          mov ebx, [esp+8]              ; device handle
+          mov eax, 4402h                ; IOCTRL read function
+          mov edx, [esp+12]             ; DS:EDX -> result data
+          mov ecx, [esp+16]             ; ECX = length
+          int 21h
+          pop ebx
+          jc  @fail
+          xor eax, eax
+  @fail:  ret
+
+else
+  PUBPROC NdisGetLinkage
+          enter 0, 0
+          mov bx, [bp+6]
+          mov ax, 4402h
+          mov dx, [bp+8]
+          mov cx, [bp+12]
+          int 21h
+          jc  @fail
+          xor ax, ax
+  @fail:  leave
+          retf
+endif
+
+ENDS
+
+END