Subversion Repositories Kolibri OS

Rev

Rev 1519 | Go to most recent revision | Show entire file | Regard whitespace | Details | Blame | Last modification | View Log | RSS feed

Rev 1519 Rev 1529
Line 12... Line 12...
12 
;;          GNU GENERAL PUBLIC LICENSE                             ;;
 12 
;;          GNU GENERAL PUBLIC LICENSE                             ;;
13 
;;             Version 2, June 1991                                ;;
 13 
;;             Version 2, June 1991                                ;;
14 
;;                                                                 ;;
 14 
;;                                                                 ;;
15 
;;;;;;;;;;;;;;;;;;;;;;;;;;;;;;;;;;;;;;;;;;;;;;;;;;;;;;;;;;;;;;;;;;;;;
 15 
;;;;;;;;;;;;;;;;;;;;;;;;;;;;;;;;;;;;;;;;;;;;;;;;;;;;;;;;;;;;;;;;;;;;;
Line 16... Line 16...
16 
 
 16 
 
Line 17... Line 17...
17 
$Revision: 1519 $
 17 
$Revision: 1529 $
18 
 
 18 
 
19 
struct	ETH_FRAME
 19 
struct	ETH_FRAME
20 
	.DstMAC 	dp  ?  ; destination MAC-address
 20 
	.DstMAC 	dp  ?  ; destination MAC-address
Line 54... Line 54...
54 
;
 54 
;
55 
; ETH_init
 55 
; ETH_init
56 
;
 56 
;
57 
;  This function resets all ethernet variables
 57 
;  This function resets all ethernet variables
58 
;
 58 
;
59 
;  IN:  /
 - 
 
60 
;  OUT: /
 - 
 
61 
;
 - 
 
62 
;-----------------------------------------------------------------
 59 
;-----------------------------------------------------------------
63 
align 4
 - 
 
64 
ETH_init:
 60 
macro	ETH_init {
Line 65... Line 61...
65 
 
 61 
 
Line 66... Line 62...
66 
	mov	[ETH_RUNNING], 0
 62 
	mov	[ETH_RUNNING], 0
Line 67... Line 63...
67 
 
 63 
 
68 
	ret
 64 
}
69 
 
 65 
 
70 
 
 66 
 
71 
;-----------------------------------------------------------------
 67 
;-----------------------------------------------------------------
72 
;
 68 
;
73 
; ETH_Receiver:
 69 
; ETH_input
74 
;
 70 
;
75 
;  This function is called by ethernet drivers,
 71 
;  This function is called by ethernet drivers,
76 
;  It pushes the received ethernet packets onto the eth_in_queue
 72 
;  It pushes the received ethernet packets onto the eth_in_queue
77 
;
 73 
;
78 
;  IN:   [esp]  = Pointer to buffer
 74 
;  IN:   [esp]  = Pointer to buffer
79 
;       [esp-4] = size of buffer
 75 
;       [esp+4] = size of buffer
80 
;         ebx   = pointer to eth_device
 76 
;         ebx   = pointer to eth_device
81 
;  OUT: /
 77 
;  OUT: /
82 
;
 78 
;
83 
;-----------------------------------------------------------------
 79 
;-----------------------------------------------------------------
Line 84... Line 80...
84 
align 4
 80 
align 4
85 
ETH_receiver:
 81 
ETH_input:
86 
	mov	eax, [esp]
 82 
	mov	eax, [esp]
87 
	mov	ecx, [esp+4]
 83 
	mov	ecx, [esp+4]
Line 88... Line 84...
88 
 
 84 
 
89 
	DEBUGF	1,"ETH_Handler - size: %u\n", ecx
 85 
	DEBUGF	1,"ETH_input - size: %u\n", ecx
Line 90... Line 86...
90 
	cmp	ecx, 60    ; check packet length
 86 
	cmp	ecx, 60    ; check packet length
91 
	jl	.dump
 87 
	jl	.dump
Line 92... Line 88...
92 
	sub	ecx, ETH_FRAME.Data
 88 
	sub	ecx, ETH_FRAME.Data
93 
 
 89 
 
Line 94... Line 90...
94 
	lea	edx, [eax + ETH_FRAME.Data]
 90 
	lea	edx, [eax + ETH_FRAME.Data]
95 
	mov	ax , [eax + ETH_FRAME.Type]
 91 
	mov	ax , [eax + ETH_FRAME.Type]
Line 96... Line 92...
96 
 
 92 
 
Line 97... Line 93...
97 
	cmp	ax, ETHER_IPv4
 93 
	cmp	ax, ETHER_IPv4
98 
	je	IPv4_handler
 94 
	je	IPv4_input
99 
 
 95 
 
100 
	cmp	ax, ETHER_ARP
 96 
	cmp	ax, ETHER_ARP
101 
	je	ARP_handler
 97 
	je	ARP_input
Line 102... Line 98...
102 
 
 98 
 
103 
;        cmp     ax, ETHER_PPP_DISCOVERY
 99 
;        cmp     ax, ETHER_PPP_DISCOVERY
104 
;        je      PPPOE_discovery
 100 
;        je      PPPOE_discovery
105 
 
 101 
 
106 
	DEBUGF	2,"Unknown ethernet packet type %x\n", ax
 102 
	DEBUGF	2,"Unknown ethernet packet type %x\n", ax
107 
 
 103 
 
108 
  .dump:
 104 
  .dump:
109 
	DEBUGF	2,"ETH_Handler - dumping\n"
 105 
	DEBUGF	2,"ETH_input - dumping\n"
110 
	call	kernel_free
 106 
	call	kernel_free
111 
	add	esp, 4
 107 
	add	esp, 4
112 
	ret
 108 
	ret
113 
 
 109 
 
114 
;-----------------------------------------------------------------
 110 
;-----------------------------------------------------------------
115 
;
 111 
;
116 
; ETH_create_packet
 112 
; ETH_output
117 
;
 113 
;
118 
; IN: eax = pointer to source mac
 114 
; IN: eax = pointer to source mac
119 
;     ebx = pointer to destination mac
 115 
;     ebx = device ptr
120 
;     ecx = packet size
 116 
;     ecx = packet size
Line 121... Line 117...
121 
;     edx = device number
 117 
;     edx = pointer to destination mac
Line 122... Line -...
122 
;      di = protocol
 - 
 
123 
;
 - 
 
124 
; OUT: edi = 0 on error, pointer to buffer otherwise
 118 
;      di = protocol
125 
;      eax = buffer start
 - 
 
126 
;      ebx = to device structure
 119 
;
Line -... Line 120...
- 
 
 120 
; OUT: edi = 0 on error, pointer to buffer otherwise
127 
;      ecx = unchanged (packet size of embedded data)
 121 
;      eax = buffer start
128 
;      edx = size of complete buffer
 - 
 
129 
;
 122 
;      ebx = to device structure
- 
 
 123 
;      ecx = unchanged (packet size of embedded data)
130 
;-----------------------------------------------------------------
 124 
;      edx = size of complete buffer
- 
 
 125 
;
131 
align 4
 126 
;-----------------------------------------------------------------
132 
ETH_create_packet:
 127 
align 4
- 
 
 128 
ETH_output:
- 
 
 129 
 
133 
 
 130 
	DEBUGF	1,"ETH_output: size=%u device:%x\n", ecx, ebx
134 
	DEBUGF	1,"Creating Ethernet Packet (size=%u): \n", ecx
 - 
 
135 
 
 - 
 
Line 136... Line 131...
136 
	push	esi
 131 
 
137 
	mov	esi, [NET_DRV_LIST]	   ;;; TODO: FIXME
 - 
 
Line 138... Line 132...
138 
	cmp	ecx, [esi + NET_DEVICE.mtu]
 132 
	cmp	ecx, [ebx + NET_DEVICE.mtu]
139 
	pop	esi
 133 
	jg	.exit
140 
	jg	.exit
 134 
 
141 
 
 135 
	push	ecx			; << 1
142 
	push	ecx di eax ebx edx
 136 
	push	di eax edx		; << 2
143 
 
 137 
	add	ecx, ETH_FRAME.Data
144 
	add	ecx, ETH_FRAME.Data
 138 
 
145 
	push	ecx
 139 
	push	ecx			; << 3
Line 146... Line 140...
146 
	push	ecx
 140 
 
147 
	call	kernel_alloc
 141 
	push	ecx			; << 4
148 
	mov	edi, eax
 - 
 
Line 149... Line 142...
149 
	test	edi, edi
 142 
	call	kernel_alloc		; >> 4
150 
	jz	.pop_exit
 - 
 
Line 151... Line 143...
151 
 
 143 
	test	eax, eax
152 
	pop	ecx
 144 
	jz	.out_of_ram
153 
	pop	edx
 145 
	mov	edi, eax
154 
 
 146 
 
Line -... Line 147...
- 
 
 147 
	pop	ecx			; >> 3
155 
	pop	esi
 148 
 
156 
	movsd
 149 
	pop	esi			; >> 2
Line 157... Line 150...
157 
	movsw
 150 
	movsd
158 
	pop	esi
 151 
	movsw
159 
	movsd
 152 
	pop	esi			; >> 2
160 
	movsw
 153 
	movsd
161 
	pop	ax
 154 
	movsw
Line 162... Line 155...
162 
	stosw
 155 
	pop	ax			; >> 2
163 
 
 156 
	stosw
164 
	lea	eax, [edi - ETH_FRAME.Data]  ; Set eax to buffer start
 157 
 
- 
 
 158 
	lea	eax, [edi - ETH_FRAME.Data]  ; Set eax to buffer start
165 
	mov	edx, ecx		     ; Set ebx to complete buffer size
 159 
	mov	edx, ecx		     ; Set edx to complete buffer size
Line 166... Line 160...
166 
	pop	ecx
 160