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The SCC_MAGIC define was removed in commit1ec3ba93c5("Staging: remove drivers/char/scc.h as it should have gone a while ago"), while its actual last user was removed before in commitbb2a97e9cc("Staging: delete generic_serial drivers"). Signed-off-by: Geert Uytterhoeven <geert+renesas@glider.be> Signed-off-by: Jonathan Corbet <corbet@lwn.net>
154 lines
9.6 KiB
Plaintext
154 lines
9.6 KiB
Plaintext
Chinese translated version of Documentation/magic-number.txt
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If you have any comment or update to the content, please post to LKML directly.
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However, if you have problem communicating in English you can also ask the
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Chinese maintainer for help. Contact the Chinese maintainer, if this
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translation is outdated or there is problem with translation.
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Chinese maintainer: Jia Wei Wei <harryxiyou@gmail.com>
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---------------------------------------------------------------------
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Documentation/magic-number.txt的中文翻译
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如果想评论或更新本文的内容，请直接发信到LKML。如果你使用英文交流有困难的话，也可
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以向中文版维护者求助。如果本翻译更新不及时或者翻译存在问题，请联系中文版维护者。
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中文版维护者： 贾威威 Jia Wei Wei <harryxiyou@gmail.com>
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中文版翻译者： 贾威威 Jia Wei Wei <harryxiyou@gmail.com>
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中文版校译者： 贾威威 Jia Wei Wei <harryxiyou@gmail.com>
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以下为正文
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---------------------------------------------------------------------
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这个文件是有关当前使用的魔术值注册表。当你给一个结构添加了一个魔术值，你也应该把这个魔术值添加到这个文件，因为我们最好把用于各种结构的魔术值统一起来。
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使用魔术值来保护内核数据结构是一个非常好的主意。这就允许你在运行期检查(a)一个结构是否已经被攻击，或者(b)你已经给一个例行程序通过了一个错误的结构。后一种情况特别地有用---特别是当你通过一个空指针指向结构体的时候。tty源码，例如，经常通过特定驱动使用这种方法并且反复地排列特定方面的结构。
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使用魔术值的方法是在结构的开始处声明的，如下：
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struct tty_ldisc {
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int magic;
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...
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};
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当你以后给内核添加增强功能的时候，请遵守这条规则！这样就会节省数不清的调试时间，特别是一些古怪的情况，例如，数组超出范围并且重新写了超出部分。遵守这个规则，这些情况可以被快速地，安全地避免。
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Theodore Ts'o
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31 Mar 94
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给当前的Linux 2.1.55添加魔术表。
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Michael Chastain
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<mailto:mec@shout.net>
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22 Sep 1997
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现在应该最新的Linux 2.1.112.因为在特性冻结期间，不能在2.2.x前改变任何东西。这些条目被数域所排序。
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Krzysztof G.Baranowski
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<mailto: kgb@knm.org.pl>
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29 Jul 1998
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更新魔术表到Linux 2.5.45。刚好越过特性冻结，但是有可能还会有一些新的魔术值在2.6.x之前融入到内核中。
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Petr Baudis
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<pasky@ucw.cz>
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03 Nov 2002
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更新魔术表到Linux 2.5.74。
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Fabian Frederick
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<ffrederick@users.sourceforge.net>
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09 Jul 2003
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魔术名 地址 结构 所在文件
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===========================================================================
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PG_MAGIC 'P' pg_{read,write}_hdr include/linux/pg.h
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CMAGIC 0x0111 user include/linux/a.out.h
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MKISS_DRIVER_MAGIC 0x04bf mkiss_channel drivers/net/mkiss.h
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HDLC_MAGIC 0x239e n_hdlc drivers/char/n_hdlc.c
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APM_BIOS_MAGIC 0x4101 apm_user arch/x86/kernel/apm_32.c
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CYCLADES_MAGIC 0x4359 cyclades_port include/linux/cyclades.h
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DB_MAGIC 0x4442 fc_info drivers/net/iph5526_novram.c
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DL_MAGIC 0x444d fc_info drivers/net/iph5526_novram.c
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FASYNC_MAGIC 0x4601 fasync_struct include/linux/fs.h
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FF_MAGIC 0x4646 fc_info drivers/net/iph5526_novram.c
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ISICOM_MAGIC 0x4d54 isi_port include/linux/isicom.h
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PTY_MAGIC 0x5001 drivers/char/pty.c
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PPP_MAGIC 0x5002 ppp include/linux/if_pppvar.h
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SERIAL_MAGIC 0x5301 async_struct include/linux/serial.h
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SSTATE_MAGIC 0x5302 serial_state include/linux/serial.h
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SLIP_MAGIC 0x5302 slip drivers/net/slip.h
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STRIP_MAGIC 0x5303 strip drivers/net/strip.c
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X25_ASY_MAGIC 0x5303 x25_asy drivers/net/x25_asy.h
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SIXPACK_MAGIC 0x5304 sixpack drivers/net/hamradio/6pack.h
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AX25_MAGIC 0x5316 ax_disp drivers/net/mkiss.h
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TTY_MAGIC 0x5401 tty_struct include/linux/tty.h
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MGSL_MAGIC 0x5401 mgsl_info drivers/char/synclink.c
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TTY_DRIVER_MAGIC 0x5402 tty_driver include/linux/tty_driver.h
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MGSLPC_MAGIC 0x5402 mgslpc_info drivers/char/pcmcia/synclink_cs.c
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TTY_LDISC_MAGIC 0x5403 tty_ldisc include/linux/tty_ldisc.h
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USB_SERIAL_MAGIC 0x6702 usb_serial drivers/usb/serial/usb-serial.h
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FULL_DUPLEX_MAGIC 0x6969 drivers/net/ethernet/dec/tulip/de2104x.c
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USB_BLUETOOTH_MAGIC 0x6d02 usb_bluetooth drivers/usb/class/bluetty.c
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RFCOMM_TTY_MAGIC 0x6d02 net/bluetooth/rfcomm/tty.c
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USB_SERIAL_PORT_MAGIC 0x7301 usb_serial_port drivers/usb/serial/usb-serial.h
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CG_MAGIC 0x00090255 ufs_cylinder_group include/linux/ufs_fs.h
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RPORT_MAGIC 0x00525001 r_port drivers/char/rocket_int.h
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LSEMAGIC 0x05091998 lse drivers/fc4/fc.c
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GDTIOCTL_MAGIC 0x06030f07 gdth_iowr_str drivers/scsi/gdth_ioctl.h
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RIEBL_MAGIC 0x09051990 drivers/net/atarilance.c
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NBD_REQUEST_MAGIC 0x12560953 nbd_request include/linux/nbd.h
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RED_MAGIC2 0x170fc2a5 (any) mm/slab.c
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BAYCOM_MAGIC 0x19730510 baycom_state drivers/net/baycom_epp.c
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ISDN_X25IFACE_MAGIC 0x1e75a2b9 isdn_x25iface_proto_data
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drivers/isdn/isdn_x25iface.h
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ECP_MAGIC 0x21504345 cdkecpsig include/linux/cdk.h
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LSOMAGIC 0x27091997 lso drivers/fc4/fc.c
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LSMAGIC 0x2a3b4d2a ls drivers/fc4/fc.c
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WANPIPE_MAGIC 0x414C4453 sdla_{dump,exec} include/linux/wanpipe.h
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CS_CARD_MAGIC 0x43525553 cs_card sound/oss/cs46xx.c
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LABELCL_MAGIC 0x4857434c labelcl_info_s include/asm/ia64/sn/labelcl.h
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ISDN_ASYNC_MAGIC 0x49344C01 modem_info include/linux/isdn.h
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CTC_ASYNC_MAGIC 0x49344C01 ctc_tty_info drivers/s390/net/ctctty.c
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ISDN_NET_MAGIC 0x49344C02 isdn_net_local_s drivers/isdn/i4l/isdn_net_lib.h
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SAVEKMSG_MAGIC2 0x4B4D5347 savekmsg arch/*/amiga/config.c
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CS_STATE_MAGIC 0x4c4f4749 cs_state sound/oss/cs46xx.c
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SLAB_C_MAGIC 0x4f17a36d kmem_cache mm/slab.c
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COW_MAGIC 0x4f4f4f4d cow_header_v1 arch/um/drivers/ubd_user.c
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I810_CARD_MAGIC 0x5072696E i810_card sound/oss/i810_audio.c
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TRIDENT_CARD_MAGIC 0x5072696E trident_card sound/oss/trident.c
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ROUTER_MAGIC 0x524d4157 wan_device [in wanrouter.h pre 3.9]
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SAVEKMSG_MAGIC1 0x53415645 savekmsg arch/*/amiga/config.c
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GDA_MAGIC 0x58464552 gda arch/mips/include/asm/sn/gda.h
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RED_MAGIC1 0x5a2cf071 (any) mm/slab.c
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EEPROM_MAGIC_VALUE 0x5ab478d2 lanai_dev drivers/atm/lanai.c
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HDLCDRV_MAGIC 0x5ac6e778 hdlcdrv_state include/linux/hdlcdrv.h
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PCXX_MAGIC 0x5c6df104 channel drivers/char/pcxx.h
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KV_MAGIC 0x5f4b565f kernel_vars_s arch/mips/include/asm/sn/klkernvars.h
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I810_STATE_MAGIC 0x63657373 i810_state sound/oss/i810_audio.c
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TRIDENT_STATE_MAGIC 0x63657373 trient_state sound/oss/trident.c
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M3_CARD_MAGIC 0x646e6f50 m3_card sound/oss/maestro3.c
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FW_HEADER_MAGIC 0x65726F66 fw_header drivers/atm/fore200e.h
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SLOT_MAGIC 0x67267321 slot drivers/hotplug/cpqphp.h
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SLOT_MAGIC 0x67267322 slot drivers/hotplug/acpiphp.h
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LO_MAGIC 0x68797548 nbd_device include/linux/nbd.h
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OPROFILE_MAGIC 0x6f70726f super_block drivers/oprofile/oprofilefs.h
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M3_STATE_MAGIC 0x734d724d m3_state sound/oss/maestro3.c
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VMALLOC_MAGIC 0x87654320 snd_alloc_track sound/core/memory.c
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KMALLOC_MAGIC 0x87654321 snd_alloc_track sound/core/memory.c
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PWC_MAGIC 0x89DC10AB pwc_device drivers/usb/media/pwc.h
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NBD_REPLY_MAGIC 0x96744668 nbd_reply include/linux/nbd.h
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ENI155_MAGIC 0xa54b872d midway_eprom drivers/atm/eni.h
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CODA_MAGIC 0xC0DAC0DA coda_file_info include/linux/coda_fs_i.h
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DPMEM_MAGIC 0xc0ffee11 gdt_pci_sram drivers/scsi/gdth.h
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YAM_MAGIC 0xF10A7654 yam_port drivers/net/hamradio/yam.c
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CCB_MAGIC 0xf2691ad2 ccb drivers/scsi/ncr53c8xx.c
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QUEUE_MAGIC_FREE 0xf7e1c9a3 queue_entry drivers/scsi/arm/queue.c
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QUEUE_MAGIC_USED 0xf7e1cc33 queue_entry drivers/scsi/arm/queue.c
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HTB_CMAGIC 0xFEFAFEF1 htb_class net/sched/sch_htb.c
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NMI_MAGIC 0x48414d4d455201 nmi_s arch/mips/include/asm/sn/nmi.h
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请注意，在声音记忆管理中仍然有一些特殊的为每个驱动定义的魔术值。查看include/sound/sndmagic.h来获取他们完整的列表信息。很多OSS声音驱动拥有自己从声卡PCI ID构建的魔术值-他们也没有被列在这里。
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IrDA子系统也使用了大量的自己的魔术值，查看include/net/irda/irda.h来获取他们完整的信息。
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HFS是另外一个比较大的使用魔术值的文件系统-你可以在fs/hfs/hfs.h中找到他们。
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