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Rev 2931 Rev 2950
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;--------------------------------------
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;--------------------------------------
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;
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;
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; Send discovery packet
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; Send discovery packet
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;
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;
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; ebx (ecx in app) = device
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; IN: eax = socket pointer
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; ecx (edx in app) = size packet
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;     ecx = number of bytes to send
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; edx (esi in app) = pointer to packet
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;     esi = pointer to data
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;
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;
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;--------------------------------------
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;--------------------------------------
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align 4
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align 4
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PPPoE_discovery_output:
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PPPoE_discovery_output:
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        DEBUGF  2,"PPPoE_discovery_output: socket=%x buffer=%x size=%d\n", eax, esi, ecx
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; RFC2516: An entire PADI packet (including the PPPoE header) MUST NOT
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; RFC2516: An entire PADI packet (including the PPPoE header) MUST NOT
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; exceed 1484 octets.
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; exceed 1484 octets.
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        cmp     ecx, 1484 + 14
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        cmp     ecx, 1484 + 14
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        ja      .bad
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        ja      .bad
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; Check that device exists and is ethernet device
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        mov     ebx, [eax + SOCKET.device]
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; Check that device exists and is ethernet device
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        cmp     ebx, MAX_NET_DEVICES
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        cmp     ebx, MAX_NET_DEVICES
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        ja      .bad
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        ja      .bad
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        mov     ebx, [NET_DRV_LIST + 4*ebx]
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        mov     ebx, [NET_DRV_LIST + 4*ebx]
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        test    ebx, ebx
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        jz      .bad
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        test    ebx, ebx
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        cmp     [ebx + NET_DEVICE.type], NET_TYPE_ETH
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        jz      .bad
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        jne     .bad
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        DEBUGF  2,"PPPoE_discovery_output: device=%x\n", ebx
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        cmp     [ebx + NET_DEVICE.type], NET_TYPE_ETH
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        jne     .bad
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; Create packet.
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; Create packet.
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        push    ecx esi
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        stdcall kernel_alloc, 1500
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        stdcall kernel_alloc, 1500
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        pop     esi ecx
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        test    eax, eax
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        jz      .bad
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        mov     edx, ecx
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        mov     edi, eax
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        rep     movsb
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        test    eax, eax
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        jz      .bad
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        cmp     edx, 60         ; Min ETH size
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        ja      @f
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        push    ecx eax
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        mov     edx, 60
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