mirror of
https://github.com/edk2-porting/linux-next.git
synced 2024-12-27 22:53:55 +08:00
59ae1d127a
A common pattern with skb_put() is to just want to memcpy()
some data into the new space, introduce skb_put_data() for
this.
An spatch similar to the one for skb_put_zero() converts many
of the places using it:
@@
identifier p, p2;
expression len, skb, data;
type t, t2;
@@
(
-p = skb_put(skb, len);
+p = skb_put_data(skb, data, len);
|
-p = (t)skb_put(skb, len);
+p = skb_put_data(skb, data, len);
)
(
p2 = (t2)p;
-memcpy(p2, data, len);
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-memcpy(p, data, len);
)
@@
type t, t2;
identifier p, p2;
expression skb, data;
@@
t *p;
...
(
-p = skb_put(skb, sizeof(t));
+p = skb_put_data(skb, data, sizeof(t));
|
-p = (t *)skb_put(skb, sizeof(t));
+p = skb_put_data(skb, data, sizeof(t));
)
(
p2 = (t2)p;
-memcpy(p2, data, sizeof(*p));
|
-memcpy(p, data, sizeof(*p));
)
@@
expression skb, len, data;
@@
-memcpy(skb_put(skb, len), data, len);
+skb_put_data(skb, data, len);
(again, manually post-processed to retain some comments)
Reviewed-by: Stephen Hemminger <stephen@networkplumber.org>
Signed-off-by: Johannes Berg <johannes.berg@intel.com>
Signed-off-by: David S. Miller <davem@davemloft.net>
605 lines
15 KiB
C
605 lines
15 KiB
C
/*
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*
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* Author Karsten Keil <kkeil@novell.com>
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*
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* Copyright 2008 by Karsten Keil <kkeil@novell.com>
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*
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* This code is free software; you can redistribute it and/or modify
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* it under the terms of the GNU LESSER GENERAL PUBLIC LICENSE
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* version 2.1 as published by the Free Software Foundation.
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*
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* This code is distributed in the hope that it will be useful,
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* but WITHOUT ANY WARRANTY; without even the implied warranty of
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* MERCHANTABILITY or FITNESS FOR A PARTICULAR PURPOSE. See the
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* GNU LESSER GENERAL PUBLIC LICENSE for more details.
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*
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*/
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#ifndef mISDNIF_H
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#define mISDNIF_H
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#include <stdarg.h>
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#include <linux/types.h>
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#include <linux/errno.h>
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#include <linux/socket.h>
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/*
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* ABI Version 32 bit
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*
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* <8 bit> Major version
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* - changed if any interface become backwards incompatible
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*
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* <8 bit> Minor version
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* - changed if any interface is extended but backwards compatible
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*
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* <16 bit> Release number
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* - should be incremented on every checkin
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*/
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#define MISDN_MAJOR_VERSION 1
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#define MISDN_MINOR_VERSION 1
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#define MISDN_RELEASE 29
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/* primitives for information exchange
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* generell format
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* <16 bit 0 >
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* <8 bit command>
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* BIT 8 = 1 LAYER private
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* BIT 7 = 1 answer
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* BIT 6 = 1 DATA
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* <8 bit target layer mask>
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*
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* Layer = 00 is reserved for general commands
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Layer = 01 L2 -> HW
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Layer = 02 HW -> L2
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Layer = 04 L3 -> L2
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Layer = 08 L2 -> L3
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* Layer = FF is reserved for broadcast commands
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*/
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#define MISDN_CMDMASK 0xff00
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#define MISDN_LAYERMASK 0x00ff
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/* generell commands */
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#define OPEN_CHANNEL 0x0100
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#define CLOSE_CHANNEL 0x0200
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#define CONTROL_CHANNEL 0x0300
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#define CHECK_DATA 0x0400
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/* layer 2 -> layer 1 */
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#define PH_ACTIVATE_REQ 0x0101
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#define PH_DEACTIVATE_REQ 0x0201
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#define PH_DATA_REQ 0x2001
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#define MPH_ACTIVATE_REQ 0x0501
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#define MPH_DEACTIVATE_REQ 0x0601
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#define MPH_INFORMATION_REQ 0x0701
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#define PH_CONTROL_REQ 0x0801
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/* layer 1 -> layer 2 */
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#define PH_ACTIVATE_IND 0x0102
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#define PH_ACTIVATE_CNF 0x4102
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#define PH_DEACTIVATE_IND 0x0202
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#define PH_DEACTIVATE_CNF 0x4202
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#define PH_DATA_IND 0x2002
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#define PH_DATA_E_IND 0x3002
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#define MPH_ACTIVATE_IND 0x0502
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#define MPH_DEACTIVATE_IND 0x0602
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#define MPH_INFORMATION_IND 0x0702
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#define PH_DATA_CNF 0x6002
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#define PH_CONTROL_IND 0x0802
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#define PH_CONTROL_CNF 0x4802
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/* layer 3 -> layer 2 */
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#define DL_ESTABLISH_REQ 0x1004
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#define DL_RELEASE_REQ 0x1104
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#define DL_DATA_REQ 0x3004
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#define DL_UNITDATA_REQ 0x3104
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#define DL_INFORMATION_REQ 0x0004
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/* layer 2 -> layer 3 */
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#define DL_ESTABLISH_IND 0x1008
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#define DL_ESTABLISH_CNF 0x5008
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#define DL_RELEASE_IND 0x1108
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#define DL_RELEASE_CNF 0x5108
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#define DL_DATA_IND 0x3008
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#define DL_UNITDATA_IND 0x3108
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#define DL_INFORMATION_IND 0x0008
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/* intern layer 2 management */
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#define MDL_ASSIGN_REQ 0x1804
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#define MDL_ASSIGN_IND 0x1904
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#define MDL_REMOVE_REQ 0x1A04
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#define MDL_REMOVE_IND 0x1B04
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#define MDL_STATUS_UP_IND 0x1C04
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#define MDL_STATUS_DOWN_IND 0x1D04
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#define MDL_STATUS_UI_IND 0x1E04
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#define MDL_ERROR_IND 0x1F04
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#define MDL_ERROR_RSP 0x5F04
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/* intern layer 2 */
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#define DL_TIMER200_IND 0x7004
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#define DL_TIMER203_IND 0x7304
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#define DL_INTERN_MSG 0x7804
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/* DL_INFORMATION_IND types */
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#define DL_INFO_L2_CONNECT 0x0001
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#define DL_INFO_L2_REMOVED 0x0002
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/* PH_CONTROL types */
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/* TOUCH TONE IS 0x20XX XX "0"..."9", "A","B","C","D","*","#" */
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#define DTMF_TONE_VAL 0x2000
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#define DTMF_TONE_MASK 0x007F
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#define DTMF_TONE_START 0x2100
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#define DTMF_TONE_STOP 0x2200
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#define DTMF_HFC_COEF 0x4000
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#define DSP_CONF_JOIN 0x2403
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#define DSP_CONF_SPLIT 0x2404
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#define DSP_RECEIVE_OFF 0x2405
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#define DSP_RECEIVE_ON 0x2406
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#define DSP_ECHO_ON 0x2407
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#define DSP_ECHO_OFF 0x2408
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#define DSP_MIX_ON 0x2409
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#define DSP_MIX_OFF 0x240a
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#define DSP_DELAY 0x240b
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#define DSP_JITTER 0x240c
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#define DSP_TXDATA_ON 0x240d
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#define DSP_TXDATA_OFF 0x240e
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#define DSP_TX_DEJITTER 0x240f
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#define DSP_TX_DEJ_OFF 0x2410
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#define DSP_TONE_PATT_ON 0x2411
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#define DSP_TONE_PATT_OFF 0x2412
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#define DSP_VOL_CHANGE_TX 0x2413
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#define DSP_VOL_CHANGE_RX 0x2414
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#define DSP_BF_ENABLE_KEY 0x2415
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#define DSP_BF_DISABLE 0x2416
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#define DSP_BF_ACCEPT 0x2416
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#define DSP_BF_REJECT 0x2417
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#define DSP_PIPELINE_CFG 0x2418
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#define HFC_VOL_CHANGE_TX 0x2601
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#define HFC_VOL_CHANGE_RX 0x2602
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#define HFC_SPL_LOOP_ON 0x2603
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#define HFC_SPL_LOOP_OFF 0x2604
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/* for T30 FAX and analog modem */
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#define HW_MOD_FRM 0x4000
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#define HW_MOD_FRH 0x4001
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#define HW_MOD_FTM 0x4002
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#define HW_MOD_FTH 0x4003
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#define HW_MOD_FTS 0x4004
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#define HW_MOD_CONNECT 0x4010
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#define HW_MOD_OK 0x4011
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#define HW_MOD_NOCARR 0x4012
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#define HW_MOD_FCERROR 0x4013
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#define HW_MOD_READY 0x4014
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#define HW_MOD_LASTDATA 0x4015
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/* DSP_TONE_PATT_ON parameter */
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#define TONE_OFF 0x0000
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#define TONE_GERMAN_DIALTONE 0x0001
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#define TONE_GERMAN_OLDDIALTONE 0x0002
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#define TONE_AMERICAN_DIALTONE 0x0003
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#define TONE_GERMAN_DIALPBX 0x0004
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#define TONE_GERMAN_OLDDIALPBX 0x0005
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#define TONE_AMERICAN_DIALPBX 0x0006
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#define TONE_GERMAN_RINGING 0x0007
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#define TONE_GERMAN_OLDRINGING 0x0008
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#define TONE_AMERICAN_RINGPBX 0x000b
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#define TONE_GERMAN_RINGPBX 0x000c
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#define TONE_GERMAN_OLDRINGPBX 0x000d
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#define TONE_AMERICAN_RINGING 0x000e
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#define TONE_GERMAN_BUSY 0x000f
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#define TONE_GERMAN_OLDBUSY 0x0010
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#define TONE_AMERICAN_BUSY 0x0011
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#define TONE_GERMAN_HANGUP 0x0012
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#define TONE_GERMAN_OLDHANGUP 0x0013
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#define TONE_AMERICAN_HANGUP 0x0014
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#define TONE_SPECIAL_INFO 0x0015
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#define TONE_GERMAN_GASSENBESETZT 0x0016
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#define TONE_GERMAN_AUFSCHALTTON 0x0016
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/* MPH_INFORMATION_IND */
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#define L1_SIGNAL_LOS_OFF 0x0010
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#define L1_SIGNAL_LOS_ON 0x0011
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#define L1_SIGNAL_AIS_OFF 0x0012
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#define L1_SIGNAL_AIS_ON 0x0013
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#define L1_SIGNAL_RDI_OFF 0x0014
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#define L1_SIGNAL_RDI_ON 0x0015
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#define L1_SIGNAL_SLIP_RX 0x0020
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#define L1_SIGNAL_SLIP_TX 0x0021
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/*
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* protocol ids
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* D channel 1-31
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* B channel 33 - 63
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*/
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#define ISDN_P_NONE 0
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#define ISDN_P_BASE 0
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#define ISDN_P_TE_S0 0x01
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#define ISDN_P_NT_S0 0x02
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#define ISDN_P_TE_E1 0x03
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#define ISDN_P_NT_E1 0x04
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#define ISDN_P_TE_UP0 0x05
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#define ISDN_P_NT_UP0 0x06
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#define IS_ISDN_P_TE(p) ((p == ISDN_P_TE_S0) || (p == ISDN_P_TE_E1) || \
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(p == ISDN_P_TE_UP0) || (p == ISDN_P_LAPD_TE))
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#define IS_ISDN_P_NT(p) ((p == ISDN_P_NT_S0) || (p == ISDN_P_NT_E1) || \
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(p == ISDN_P_NT_UP0) || (p == ISDN_P_LAPD_NT))
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#define IS_ISDN_P_S0(p) ((p == ISDN_P_TE_S0) || (p == ISDN_P_NT_S0))
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#define IS_ISDN_P_E1(p) ((p == ISDN_P_TE_E1) || (p == ISDN_P_NT_E1))
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#define IS_ISDN_P_UP0(p) ((p == ISDN_P_TE_UP0) || (p == ISDN_P_NT_UP0))
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#define ISDN_P_LAPD_TE 0x10
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#define ISDN_P_LAPD_NT 0x11
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#define ISDN_P_B_MASK 0x1f
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#define ISDN_P_B_START 0x20
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#define ISDN_P_B_RAW 0x21
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#define ISDN_P_B_HDLC 0x22
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#define ISDN_P_B_X75SLP 0x23
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#define ISDN_P_B_L2DTMF 0x24
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#define ISDN_P_B_L2DSP 0x25
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#define ISDN_P_B_L2DSPHDLC 0x26
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#define ISDN_P_B_T30_FAX 0x27
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#define ISDN_P_B_MODEM_ASYNC 0x28
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#define OPTION_L2_PMX 1
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#define OPTION_L2_PTP 2
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#define OPTION_L2_FIXEDTEI 3
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#define OPTION_L2_CLEANUP 4
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#define OPTION_L1_HOLD 5
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/* should be in sync with linux/kobject.h:KOBJ_NAME_LEN */
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#define MISDN_MAX_IDLEN 20
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struct mISDNhead {
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unsigned int prim;
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unsigned int id;
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} __packed;
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#define MISDN_HEADER_LEN sizeof(struct mISDNhead)
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#define MAX_DATA_SIZE 2048
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#define MAX_DATA_MEM (MAX_DATA_SIZE + MISDN_HEADER_LEN)
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#define MAX_DFRAME_LEN 260
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#define MISDN_ID_ADDR_MASK 0xFFFF
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#define MISDN_ID_TEI_MASK 0xFF00
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#define MISDN_ID_SAPI_MASK 0x00FF
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#define MISDN_ID_TEI_ANY 0x7F00
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#define MISDN_ID_ANY 0xFFFF
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#define MISDN_ID_NONE 0xFFFE
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#define GROUP_TEI 127
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#define TEI_SAPI 63
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#define CTRL_SAPI 0
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#define MISDN_MAX_CHANNEL 127
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#define MISDN_CHMAP_SIZE ((MISDN_MAX_CHANNEL + 1) >> 3)
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#define SOL_MISDN 0
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struct sockaddr_mISDN {
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sa_family_t family;
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unsigned char dev;
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unsigned char channel;
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unsigned char sapi;
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unsigned char tei;
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};
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struct mISDNversion {
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unsigned char major;
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unsigned char minor;
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unsigned short release;
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};
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struct mISDN_devinfo {
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u_int id;
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u_int Dprotocols;
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u_int Bprotocols;
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u_int protocol;
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u_char channelmap[MISDN_CHMAP_SIZE];
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u_int nrbchan;
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char name[MISDN_MAX_IDLEN];
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};
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struct mISDN_devrename {
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u_int id;
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char name[MISDN_MAX_IDLEN]; /* new name */
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};
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/* MPH_INFORMATION_REQ payload */
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struct ph_info_ch {
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__u32 protocol;
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__u64 Flags;
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};
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struct ph_info_dch {
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struct ph_info_ch ch;
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__u16 state;
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__u16 num_bch;
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};
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struct ph_info {
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struct ph_info_dch dch;
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struct ph_info_ch bch[];
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};
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/* timer device ioctl */
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#define IMADDTIMER _IOR('I', 64, int)
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#define IMDELTIMER _IOR('I', 65, int)
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/* socket ioctls */
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#define IMGETVERSION _IOR('I', 66, int)
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#define IMGETCOUNT _IOR('I', 67, int)
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#define IMGETDEVINFO _IOR('I', 68, int)
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#define IMCTRLREQ _IOR('I', 69, int)
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#define IMCLEAR_L2 _IOR('I', 70, int)
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#define IMSETDEVNAME _IOR('I', 71, struct mISDN_devrename)
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#define IMHOLD_L1 _IOR('I', 72, int)
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static inline int
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test_channelmap(u_int nr, u_char *map)
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{
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if (nr <= MISDN_MAX_CHANNEL)
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return map[nr >> 3] & (1 << (nr & 7));
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else
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return 0;
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}
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static inline void
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set_channelmap(u_int nr, u_char *map)
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{
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map[nr >> 3] |= (1 << (nr & 7));
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}
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static inline void
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clear_channelmap(u_int nr, u_char *map)
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{
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map[nr >> 3] &= ~(1 << (nr & 7));
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}
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/* CONTROL_CHANNEL parameters */
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#define MISDN_CTRL_GETOP 0x0000
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#define MISDN_CTRL_LOOP 0x0001
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#define MISDN_CTRL_CONNECT 0x0002
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#define MISDN_CTRL_DISCONNECT 0x0004
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#define MISDN_CTRL_RX_BUFFER 0x0008
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#define MISDN_CTRL_PCMCONNECT 0x0010
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#define MISDN_CTRL_PCMDISCONNECT 0x0020
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#define MISDN_CTRL_SETPEER 0x0040
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#define MISDN_CTRL_UNSETPEER 0x0080
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#define MISDN_CTRL_RX_OFF 0x0100
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#define MISDN_CTRL_FILL_EMPTY 0x0200
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#define MISDN_CTRL_GETPEER 0x0400
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#define MISDN_CTRL_L1_TIMER3 0x0800
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#define MISDN_CTRL_HW_FEATURES_OP 0x2000
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#define MISDN_CTRL_HW_FEATURES 0x2001
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#define MISDN_CTRL_HFC_OP 0x4000
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#define MISDN_CTRL_HFC_PCM_CONN 0x4001
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#define MISDN_CTRL_HFC_PCM_DISC 0x4002
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#define MISDN_CTRL_HFC_CONF_JOIN 0x4003
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#define MISDN_CTRL_HFC_CONF_SPLIT 0x4004
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#define MISDN_CTRL_HFC_RECEIVE_OFF 0x4005
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#define MISDN_CTRL_HFC_RECEIVE_ON 0x4006
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#define MISDN_CTRL_HFC_ECHOCAN_ON 0x4007
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#define MISDN_CTRL_HFC_ECHOCAN_OFF 0x4008
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#define MISDN_CTRL_HFC_WD_INIT 0x4009
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#define MISDN_CTRL_HFC_WD_RESET 0x400A
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/* special RX buffer value for MISDN_CTRL_RX_BUFFER request.p1 is the minimum
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* buffer size request.p2 the maximum. Using MISDN_CTRL_RX_SIZE_IGNORE will
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* not change the value, but still read back the actual stetting.
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*/
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#define MISDN_CTRL_RX_SIZE_IGNORE -1
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/* socket options */
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#define MISDN_TIME_STAMP 0x0001
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struct mISDN_ctrl_req {
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int op;
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int channel;
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int p1;
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int p2;
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};
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/* muxer options */
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#define MISDN_OPT_ALL 1
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#define MISDN_OPT_TEIMGR 2
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#ifdef __KERNEL__
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#include <linux/list.h>
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#include <linux/skbuff.h>
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#include <linux/net.h>
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#include <net/sock.h>
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#include <linux/completion.h>
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#define DEBUG_CORE 0x000000ff
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#define DEBUG_CORE_FUNC 0x00000002
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#define DEBUG_SOCKET 0x00000004
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#define DEBUG_MANAGER 0x00000008
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#define DEBUG_SEND_ERR 0x00000010
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#define DEBUG_MSG_THREAD 0x00000020
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#define DEBUG_QUEUE_FUNC 0x00000040
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#define DEBUG_L1 0x0000ff00
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#define DEBUG_L1_FSM 0x00000200
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#define DEBUG_L2 0x00ff0000
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#define DEBUG_L2_FSM 0x00020000
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#define DEBUG_L2_CTRL 0x00040000
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#define DEBUG_L2_RECV 0x00080000
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#define DEBUG_L2_TEI 0x00100000
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#define DEBUG_L2_TEIFSM 0x00200000
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#define DEBUG_TIMER 0x01000000
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#define DEBUG_CLOCK 0x02000000
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#define mISDN_HEAD_P(s) ((struct mISDNhead *)&s->cb[0])
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#define mISDN_HEAD_PRIM(s) (((struct mISDNhead *)&s->cb[0])->prim)
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#define mISDN_HEAD_ID(s) (((struct mISDNhead *)&s->cb[0])->id)
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/* socket states */
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#define MISDN_OPEN 1
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#define MISDN_BOUND 2
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#define MISDN_CLOSED 3
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struct mISDNchannel;
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struct mISDNdevice;
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struct mISDNstack;
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struct mISDNclock;
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struct channel_req {
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u_int protocol;
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struct sockaddr_mISDN adr;
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struct mISDNchannel *ch;
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};
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typedef int (ctrl_func_t)(struct mISDNchannel *, u_int, void *);
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typedef int (send_func_t)(struct mISDNchannel *, struct sk_buff *);
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typedef int (create_func_t)(struct channel_req *);
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struct Bprotocol {
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struct list_head list;
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char *name;
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u_int Bprotocols;
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create_func_t *create;
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};
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struct mISDNchannel {
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struct list_head list;
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u_int protocol;
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u_int nr;
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u_long opt;
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u_int addr;
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struct mISDNstack *st;
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struct mISDNchannel *peer;
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send_func_t *send;
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send_func_t *recv;
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ctrl_func_t *ctrl;
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};
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struct mISDN_sock_list {
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struct hlist_head head;
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rwlock_t lock;
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};
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struct mISDN_sock {
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struct sock sk;
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struct mISDNchannel ch;
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u_int cmask;
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struct mISDNdevice *dev;
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};
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struct mISDNdevice {
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struct mISDNchannel D;
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u_int id;
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u_int Dprotocols;
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u_int Bprotocols;
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u_int nrbchan;
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u_char channelmap[MISDN_CHMAP_SIZE];
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struct list_head bchannels;
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struct mISDNchannel *teimgr;
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struct device dev;
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};
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struct mISDNstack {
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u_long status;
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struct mISDNdevice *dev;
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struct task_struct *thread;
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struct completion *notify;
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wait_queue_head_t workq;
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struct sk_buff_head msgq;
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struct list_head layer2;
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struct mISDNchannel *layer1;
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struct mISDNchannel own;
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struct mutex lmutex; /* protect lists */
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struct mISDN_sock_list l1sock;
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#ifdef MISDN_MSG_STATS
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u_int msg_cnt;
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u_int sleep_cnt;
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u_int stopped_cnt;
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#endif
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};
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typedef int (clockctl_func_t)(void *, int);
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struct mISDNclock {
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struct list_head list;
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char name[64];
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int pri;
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clockctl_func_t *ctl;
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void *priv;
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};
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/* global alloc/queue functions */
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static inline struct sk_buff *
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mI_alloc_skb(unsigned int len, gfp_t gfp_mask)
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{
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struct sk_buff *skb;
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skb = alloc_skb(len + MISDN_HEADER_LEN, gfp_mask);
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if (likely(skb))
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skb_reserve(skb, MISDN_HEADER_LEN);
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return skb;
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}
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static inline struct sk_buff *
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_alloc_mISDN_skb(u_int prim, u_int id, u_int len, void *dp, gfp_t gfp_mask)
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{
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struct sk_buff *skb = mI_alloc_skb(len, gfp_mask);
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struct mISDNhead *hh;
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if (!skb)
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return NULL;
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if (len)
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skb_put_data(skb, dp, len);
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hh = mISDN_HEAD_P(skb);
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hh->prim = prim;
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hh->id = id;
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return skb;
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}
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static inline void
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_queue_data(struct mISDNchannel *ch, u_int prim,
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u_int id, u_int len, void *dp, gfp_t gfp_mask)
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{
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struct sk_buff *skb;
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if (!ch->peer)
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return;
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skb = _alloc_mISDN_skb(prim, id, len, dp, gfp_mask);
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if (!skb)
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return;
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if (ch->recv(ch->peer, skb))
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dev_kfree_skb(skb);
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}
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/* global register/unregister functions */
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extern int mISDN_register_device(struct mISDNdevice *,
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struct device *parent, char *name);
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extern void mISDN_unregister_device(struct mISDNdevice *);
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extern int mISDN_register_Bprotocol(struct Bprotocol *);
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extern void mISDN_unregister_Bprotocol(struct Bprotocol *);
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extern struct mISDNclock *mISDN_register_clock(char *, int, clockctl_func_t *,
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void *);
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extern void mISDN_unregister_clock(struct mISDNclock *);
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static inline struct mISDNdevice *dev_to_mISDN(struct device *dev)
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{
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if (dev)
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return dev_get_drvdata(dev);
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else
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return NULL;
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}
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extern void set_channel_address(struct mISDNchannel *, u_int, u_int);
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extern void mISDN_clock_update(struct mISDNclock *, int, ktime_t *);
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extern unsigned short mISDN_clock_get(void);
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extern const char *mISDNDevName4ch(struct mISDNchannel *);
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#endif /* __KERNEL__ */
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#endif /* mISDNIF_H */
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