Subversion Repositories Kolibri OS

Rev

Rev 7679 | Rev 9394 | Go to most recent revision | Show entire file | Regard whitespace | Details | Blame | Last modification | View Log | RSS feed

Rev 7679 Rev 9017
Line 1... Line 1...
1 
;;;;;;;;;;;;;;;;;;;;;;;;;;;;;;;;;;;;;;;;;;;;;;;;;;;;;;;;;;;;;;;;;;;;;
 1 
;;;;;;;;;;;;;;;;;;;;;;;;;;;;;;;;;;;;;;;;;;;;;;;;;;;;;;;;;;;;;;;;;;;;;
2 
;;                                                                 ;;
 2 
;;                                                                 ;;
3 
;; Copyright (C) KolibriOS team 2004-2019. All rights reserved.    ;;
 3 
;; Copyright (C) KolibriOS team 2004-2021. All rights reserved.    ;;
4 
;; Distributed under terms of the GNU General Public License       ;;
 4 
;; Distributed under terms of the GNU General Public License       ;;
5 
;;                                                                 ;;
 5 
;;                                                                 ;;
6 
;;  ETHERNET.INC                                                   ;;
 6 
;;  ETHERNET.INC                                                   ;;
7 
;;                                                                 ;;
 7 
;;                                                                 ;;
8 
;;  Ethernet network layer for KolibriOS                           ;;
 8 
;;  Ethernet network layer for KolibriOS                           ;;
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: 7679 $
 17 
$Revision: 9017 $
18 
 
 18 
 
Line 19... Line 19...
19 
ETH_FRAME_MINIMUM       = 60
 19 
ETH_FRAME_MINIMUM       = 60
Line 74... Line 74...
74 
;-----------------------------------------------------------------;
 74 
;-----------------------------------------------------------------;
75 
align 4
 75 
align 4
76 
eth_input:
 76 
eth_input:
Line 77... Line 77...
77 
 
 77 
 
- 
 
 78 
        pop     eax
- 
 
 79 
 
- 
 
 80 
if defined NETWORK_SANITY_CHECKS
- 
 
 81 
        cmp     eax, [net_buffs_low]
- 
 
 82 
        jb      .assert_mbuff
- 
 
 83 
        cmp     eax, [net_buffs_high]
78 
        pop     eax
 84 
        ja      .assert_mbuff
- 
 
 85 
        test    eax, 0x7ff
- 
 
 86 
        jnz     .assert_mbuff
- 
 
 87 
end if
79 
        pushf
 88 
 
Line 80... Line 89...
80 
        cli
 89 
        spin_lock_irqsave
81 
 
 90 
 
82 
        cmp     [ETH_frame_queued], ETH_QUEUE_SIZE
 91 
        cmp     [ETH_frame_queued], ETH_QUEUE_SIZE
Line 90... Line 99...
90 
        mov     [eax + NET_BUFF.PrevPtr], ebx
 99 
        mov     [eax + NET_BUFF.PrevPtr], ebx
Line 91... Line 100...
91 
 
 100 
 
92 
        mov     [ETH_frame_tail], eax
 101 
        mov     [ETH_frame_tail], eax
Line 93... Line 102...
93 
        mov     [ebx + NET_BUFF.NextPtr], eax
 102 
        mov     [ebx + NET_BUFF.NextPtr], eax
Line 94... Line 103...
94 
 
 103 
 
95 
        popf
 104 
        spin_unlock_irqrestore
Line 96... Line 105...
96 
 
 105 
 
Line 105... Line 114...
105 
        call    raise_event
 114 
        call    raise_event
Line 106... Line 115...
106 
 
 115 
 
Line 107... Line 116...
107 
        ret
 116 
        ret
- 
 
 117 
 
- 
 
 118 
  .full:
108 
 
 119 
        mov     ebx, [eax + NET_BUFF.device]
- 
 
 120 
        inc     [ebx + NET_DEVICE.packets_rx_ovr]
- 
 
 121 
        DEBUGF  DEBUG_NETWORK_VERBOSE, "ETH incoming queue is full, discarding packet!\n"
109 
  .full:
 122 
        spin_unlock_irqrestore
- 
 
 123 
        stdcall net_buff_free, eax
- 
 
 124 
        ret
110 
        DEBUGF  DEBUG_NETWORK_ERROR, "ETH incoming queue is full, discarding packet!\n"
 125 
 
- 
 
 126 
if defined NETWORK_SANITY_CHECKS
- 
 
 127 
  .assert_mbuff:
111 
        popf
 128 
        DEBUGF  DEBUG_NETWORK_ERROR, "eth_input: invalid buffer 0x%x\n", eax
112 
        push    eax
 129 
        DEBUGF  DEBUG_NETWORK_ERROR, "eth_input: caller=0x%x\n", [esp+4]
- 
 
 130 
        xor     eax, eax
Line 113... Line 131...
113 
        call    net_buff_free
 131 
        ret
114 
        ret
 132 
end if
Line 162... Line 180...
162 
        pushd   .loop           ; return address for protocol handler
 180 
        pushd   .loop           ; return address for protocol handler
163 
        push    esi             ; keep pointer to NET_BUFF on stack
 181 
        push    esi             ; keep pointer to NET_BUFF on stack
Line 164... Line 182...
164 
 
 182 
 
165 
        DEBUGF  DEBUG_NETWORK_VERBOSE, "ETH_input: size=%u\n", ecx
 183 
        DEBUGF  DEBUG_NETWORK_VERBOSE, "ETH_input: size=%u\n", ecx
166 
        sub     ecx, sizeof.ETH_header
 184 
        sub     ecx, sizeof.ETH_header
Line 167... Line 185...
167 
        jb      .dump
 185 
        jb      .err
168 
 
 186 
 
169 
; Set registers for protocol handlers
 187 
; Set registers for protocol handlers
Line 186... Line 204...
186 
;        cmp     ax, ETHER_PROTO_PPP_SESSION
 204 
;        cmp     ax, ETHER_PROTO_PPP_SESSION
187 
;        je      pppoe_session_input
 205 
;        je      pppoe_session_input
Line 188... Line 206...
188 
 
 206 
 
Line 189... Line 207...
189 
        DEBUGF  DEBUG_NETWORK_VERBOSE, "ETH_input: Unknown packet type=%x\n", ax
 207 
        DEBUGF  DEBUG_NETWORK_VERBOSE, "ETH_input: Unknown packet type=%x\n", ax
- 
 
 208 
 
- 
 
 209 
  .drop:
- 
 
 210 
        mov     eax, [esp]
190 
 
 211 
        mov     eax, [eax + NET_BUFF.device]
- 
 
 212 
        inc     [eax + NET_DEVICE.packets_rx_drop]
- 
 
 213 
        DEBUGF  DEBUG_NETWORK_VERBOSE, "ETH_input: dropping\n"
- 
 
 214 
        call    net_buff_free
- 
 
 215 
        ret
- 
 
 216 
 
- 
 
 217 
  .err:
- 
 
 218 
        mov     eax, [esp]
- 
 
 219 
        mov     eax, [eax + NET_BUFF.device]
191 
  .dump:
 220 
        inc     [eax + NET_DEVICE.packets_rx_err]
192 
        DEBUGF  DEBUG_NETWORK_VERBOSE, "ETH_input: dumping\n"
 221 
        DEBUGF  DEBUG_NETWORK_VERBOSE, "ETH_input: invalid frame received\n"
Line -... Line 222...
- 
 
 222 
        call    net_buff_free
193 
        call    net_buff_free
 223 
        ret
194 
        ret
 224 
 
195 
 
 225 
 
196 
 
 226 
 
197 
 
 227 
 
Line 214... Line 244...
214 
eth_output:
 244 
eth_output:
Line 215... Line 245...
215 
 
 245 
 
Line 216... Line 246...
216 
        DEBUGF  DEBUG_NETWORK_VERBOSE, "ETH_output: size=%u device=%x\n", ecx, ebx
 246 
        DEBUGF  DEBUG_NETWORK_VERBOSE, "ETH_output: size=%u device=%x\n", ecx, ebx
217 
 
 247 
 
Line 218... Line 248...
218 
        cmp     ecx, [ebx + ETH_DEVICE.mtu]
 248 
        cmp     ecx, [ebx + ETH_DEVICE.mtu]
219 
        ja      .exit
 249 
        ja      .too_large
Line 220... Line 250...
220 
 
 250 
 
221 
        push    ecx
 251 
        push    ecx
222 
        push    ax edx
 252 
        push    ax edx
223 
 
 253 
 
- 
 
 254 
        add     ecx, sizeof.ETH_header + NET_BUFF.data
224 
        add     ecx, sizeof.ETH_header + NET_BUFF.data
 255 
        stdcall net_buff_alloc, ecx
225 
        stdcall net_buff_alloc, ecx
 256 
        test    eax, eax
226 
        test    eax, eax
 257 
        jz      .out_of_ram
227 
        jz      .out_of_ram
 258 
 
Line 254... Line 285...
254 
        mov     edx, ETH_FRAME_MINIMUM
 285 
        mov     edx, ETH_FRAME_MINIMUM
255 
        test    edx, edx                        ; clear zero flag
 286 
        test    edx, edx                        ; clear zero flag
256 
        jmp     .done
 287 
        jmp     .done
Line 257... Line 288...
257 
 
 288 
 
- 
 
 289 
  .out_of_ram:
258 
  .out_of_ram:
 290 
        inc     [ebx + NET_DEVICE.packets_tx_drop]
259 
        DEBUGF  DEBUG_NETWORK_ERROR, "ETH_output: Out of ram!\n"
 291 
        DEBUGF  DEBUG_NETWORK_VERBOSE, "ETH_output: Out of ram!\n"
- 
 
 292 
        add     esp, 4+2
260 
        add     esp, 4+2+4
 293 
        pop     ecx
261 
        xor     eax, eax
 294 
        xor     eax, eax
Line 262... Line 295...
262 
        ret
 295 
        ret
- 
 
 296 
 
263 
 
 297 
  .too_large:
264 
  .exit:
 298 
        inc     [eax + NET_DEVICE.packets_tx_err]
265 
        DEBUGF  DEBUG_NETWORK_ERROR, "ETH_output: Packet too large!\n"
 299 
        DEBUGF  DEBUG_NETWORK_VERBOSE, "ETH_output: Packet too large!\n"