From 86297c41a26f18d924e64fc93321c59cbc4c48dd Mon Sep 17 00:00:00 2001 From: Thomas Bushnell Date: Mon, 26 Apr 1999 05:58:44 +0000 Subject: 1998-11-30 OKUJI Yoshinori Clean up linux emulation code to make it architecture-independent as much as possible. * linux: Renamed from linuxdev. * Makefile.in (objfiles): Add linux.o instead of linuxdev.o. (MAKE): New variable. Used for the linux.o target. * configure.in: Add AC_CHECK_TOOL(MAKE, make). * i386/i386/spl.h: Include , for compatibility with OSF Mach 3.0. Suggested by Elgin Lee . * linux/src: Renamed from linux/linux. * linux/dev: Renamed from linux/mach. * linux/Drivers.in (AC_INIT): Use dev/include/linux/autoconf.h, instead of mach/include/linux/autoconf.h. * Makefile.in (all): Target ../linux.o instead of ../linuxdev.o. * linux/dev/drivers/block/genhd.c: Include instead of . * linux/dev/drivers/net/auto_irq.c: Remove unneeded header files, and . * linux/dev/init/main.c: Many i386-dependent codes moved to ... * linux/dev/arch/i386/irq.c: ... here. * linux/dev/arch/i386/setup.c: New file. * linux/dev/arch/i386/linux_emul.h: Likewise. * linux/dev/arch/i386/glue/timer.c: Merged into sched.c. * linux/dev/arch/i386/glue/sched.c: Include instead of , and moved to ... * linux/dev/kernel/sched.c: ... here. * linux/dev/arch/i386/glue/block.c: Include and , instead of i386-dependent header files, and moved to ... * linux/dev/glue/blocl.c: ... here. * linux/dev/arch/i386/glue/net.c: Include and , instead of i386-dependent header files, and moved to ... * linux/dev/glue/net.c: ... here. * linux/dev/arch/i386/glue/misc.c: Remove `x86' and moved to ... * linux/dev/glue/misc.c: ... here. * linux/dev/arch/i386/glue/kmem.c: Moved to ... * linux/dev/glue/kmem.c: ... here. --- linux/dev/include/asm-i386/errno.h | 266 +++++++++++ linux/dev/include/asm-i386/page.h | 64 +++ linux/dev/include/asm-i386/segment.h | 351 +++++++++++++++ linux/dev/include/asm-i386/string.h | 631 ++++++++++++++++++++++++++ linux/dev/include/asm-i386/system.h | 336 ++++++++++++++ linux/dev/include/linux/blk.h | 467 ++++++++++++++++++++ linux/dev/include/linux/blkdev.h | 72 +++ linux/dev/include/linux/compile.h | 6 + linux/dev/include/linux/etherdevice.h | 62 +++ linux/dev/include/linux/fs.h | 803 ++++++++++++++++++++++++++++++++++ linux/dev/include/linux/genhd.h | 141 ++++++ linux/dev/include/linux/if.h | 184 ++++++++ linux/dev/include/linux/kernel.h | 107 +++++ linux/dev/include/linux/locks.h | 66 +++ linux/dev/include/linux/malloc.h | 17 + linux/dev/include/linux/mm.h | 377 ++++++++++++++++ linux/dev/include/linux/netdevice.h | 338 ++++++++++++++ linux/dev/include/linux/nfs.h | 175 ++++++++ linux/dev/include/linux/notifier.h | 100 +++++ linux/dev/include/linux/pagemap.h | 150 +++++++ linux/dev/include/linux/proc_fs.h | 292 +++++++++++++ linux/dev/include/linux/sched.h | 521 ++++++++++++++++++++++ linux/dev/include/linux/skbuff.h | 470 ++++++++++++++++++++ linux/dev/include/linux/types.h | 112 +++++ 24 files changed, 6108 insertions(+) create mode 100644 linux/dev/include/asm-i386/errno.h create mode 100644 linux/dev/include/asm-i386/page.h create mode 100644 linux/dev/include/asm-i386/segment.h create mode 100644 linux/dev/include/asm-i386/string.h create mode 100644 linux/dev/include/asm-i386/system.h create mode 100644 linux/dev/include/linux/blk.h create mode 100644 linux/dev/include/linux/blkdev.h create mode 100644 linux/dev/include/linux/compile.h create mode 100644 linux/dev/include/linux/etherdevice.h create mode 100644 linux/dev/include/linux/fs.h create mode 100644 linux/dev/include/linux/genhd.h create mode 100644 linux/dev/include/linux/if.h create mode 100644 linux/dev/include/linux/kernel.h create mode 100644 linux/dev/include/linux/locks.h create mode 100644 linux/dev/include/linux/malloc.h create mode 100644 linux/dev/include/linux/mm.h create mode 100644 linux/dev/include/linux/netdevice.h create mode 100644 linux/dev/include/linux/nfs.h create mode 100644 linux/dev/include/linux/notifier.h create mode 100644 linux/dev/include/linux/pagemap.h create mode 100644 linux/dev/include/linux/proc_fs.h create mode 100644 linux/dev/include/linux/sched.h create mode 100644 linux/dev/include/linux/skbuff.h create mode 100644 linux/dev/include/linux/types.h (limited to 'linux/dev/include') diff --git a/linux/dev/include/asm-i386/errno.h b/linux/dev/include/asm-i386/errno.h new file mode 100644 index 0000000..1683367 --- /dev/null +++ b/linux/dev/include/asm-i386/errno.h @@ -0,0 +1,266 @@ +#ifndef _I386_ERRNO_H +#define _I386_ERRNO_H + +#ifdef MACH_INCLUDE + +#define LINUX_EPERM 1 /* Operation not permitted */ +#define LINUX_ENOENT 2 /* No such file or directory */ +#define LINUX_ESRCH 3 /* No such process */ +#define LINUX_EINTR 4 /* Interrupted system call */ +#define LINUX_EIO 5 /* I/O error */ +#define LINUX_ENXIO 6 /* No such device or address */ +#define LINUX_E2BIG 7 /* Arg list too long */ +#define LINUX_ENOEXEC 8 /* Exec format error */ +#define LINUX_EBADF 9 /* Bad file number */ +#define LINUX_ECHILD 10 /* No child processes */ +#define LINUX_EAGAIN 11 /* Try again */ +#define LINUX_ENOMEM 12 /* Out of memory */ +#define LINUX_EACCES 13 /* Permission denied */ +#define LINUX_EFAULT 14 /* Bad address */ +#define LINUX_ENOTBLK 15 /* Block device required */ +#define LINUX_EBUSY 16 /* Device or resource busy */ +#define LINUX_EEXIST 17 /* File exists */ +#define LINUX_EXDEV 18 /* Cross-device link */ +#define LINUX_ENODEV 19 /* No such device */ +#define LINUX_ENOTDIR 20 /* Not a directory */ +#define LINUX_EISDIR 21 /* Is a directory */ +#define LINUX_EINVAL 22 /* Invalid argument */ +#define LINUX_ENFILE 23 /* File table overflow */ +#define LINUX_EMFILE 24 /* Too many open files */ +#define LINUX_ENOTTY 25 /* Not a typewriter */ +#define LINUX_ETXTBSY 26 /* Text file busy */ +#define LINUX_EFBIG 27 /* File too large */ +#define LINUX_ENOSPC 28 /* No space left on device */ +#define LINUX_ESPIPE 29 /* Illegal seek */ +#define LINUX_EROFS 30 /* Read-only file system */ +#define LINUX_EMLINK 31 /* Too many links */ +#define LINUX_EPIPE 32 /* Broken pipe */ +#define LINUX_EDOM 33 /* Math argument out of domain of func */ +#define LINUX_ERANGE 34 /* Math result not representable */ +#define LINUX_EDEADLK 35 /* Resource deadlock would occur */ +#define LINUX_ENAMETOOLONG 36 /* File name too long */ +#define LINUX_ENOLCK 37 /* No record locks available */ +#define LINUX_ENOSYS 38 /* Function not implemented */ +#define LINUX_ENOTEMPTY 39 /* Directory not empty */ +#define LINUX_ELOOP 40 /* Too many symbolic links encountered */ +#define LINUX_EWOULDBLOCK LINUX_EAGAIN /* Operation would block */ +#define LINUX_ENOMSG 42 /* No message of desired type */ +#define LINUX_EIDRM 43 /* Identifier removed */ +#define LINUX_ECHRNG 44 /* Channel number out of range */ +#define LINUX_EL2NSYNC 45 /* Level 2 not synchronized */ +#define LINUX_EL3HLT 46 /* Level 3 halted */ +#define LINUX_EL3RST 47 /* Level 3 reset */ +#define LINUX_ELNRNG 48 /* Link number out of range */ +#define LINUX_EUNATCH 49 /* Protocol driver not attached */ +#define LINUX_ENOCSI 50 /* No CSI structure available */ +#define LINUX_EL2HLT 51 /* Level 2 halted */ +#define LINUX_EBADE 52 /* Invalid exchange */ +#define LINUX_EBADR 53 /* Invalid request descriptor */ +#define LINUX_EXFULL 54 /* Exchange full */ +#define LINUX_ENOANO 55 /* No anode */ +#define LINUX_EBADRQC 56 /* Invalid request code */ +#define LINUX_EBADSLT 57 /* Invalid slot */ + +#define LINUX_EDEADLOCK LINUX_EDEADLK + +#define LINUX_EBFONT 59 /* Bad font file format */ +#define LINUX_ENOSTR 60 /* Device not a stream */ +#define LINUX_ENODATA 61 /* No data available */ +#define LINUX_ETIME 62 /* Timer expired */ +#define LINUX_ENOSR 63 /* Out of streams resources */ +#define LINUX_ENONET 64 /* Machine is not on the network */ +#define LINUX_ENOPKG 65 /* Package not installed */ +#define LINUX_EREMOTE 66 /* Object is remote */ +#define LINUX_ENOLINK 67 /* Link has been severed */ +#define LINUX_EADV 68 /* Advertise error */ +#define LINUX_ESRMNT 69 /* Srmount error */ +#define LINUX_ECOMM 70 /* Communication error on send */ +#define LINUX_EPROTO 71 /* Protocol error */ +#define LINUX_EMULTIHOP 72 /* Multihop attempted */ +#define LINUX_EDOTDOT 73 /* RFS specific error */ +#define LINUX_EBADMSG 74 /* Not a data message */ +#define LINUX_EOVERFLOW 75 /* Value too large for defined data type */ +#define LINUX_ENOTUNIQ 76 /* Name not unique on network */ +#define LINUX_EBADFD 77 /* File descriptor in bad state */ +#define LINUX_EREMCHG 78 /* Remote address changed */ +#define LINUX_ELIBACC 79 /* Can not access a needed shared library */ +#define LINUX_ELIBBAD 80 /* Accessing a corrupted shared library */ +#define LINUX_ELIBSCN 81 /* .lib section in a.out corrupted */ +#define LINUX_ELIBMAX 82 /* Attempting to link in too many shared libraries */ +#define LINUX_ELIBEXEC 83 /* Cannot exec a shared library directly */ +#define LINUX_EILSEQ 84 /* Illegal byte sequence */ +#define LINUX_ERESTART 85 /* Interrupted system call should be restarted */ +#define LINUX_ESTRPIPE 86 /* Streams pipe error */ +#define LINUX_EUSERS 87 /* Too many users */ +#define LINUX_ENOTSOCK 88 /* Socket operation on non-socket */ +#define LINUX_EDESTADDRREQ 89 /* Destination address required */ +#define LINUX_EMSGSIZE 90 /* Message too long */ +#define LINUX_EPROTOTYPE 91 /* Protocol wrong type for socket */ +#define LINUX_ENOPROTOOPT 92 /* Protocol not available */ +#define LINUX_EPROTONOSUPPORT 93 /* Protocol not supported */ +#define LINUX_ESOCKTNOSUPPORT 94 /* Socket type not supported */ +#define LINUX_EOPNOTSUPP 95 /* Operation not supported on transport endpoint */ +#define LINUX_EPFNOSUPPORT 96 /* Protocol family not supported */ +#define LINUX_EAFNOSUPPORT 97 /* Address family not supported by protocol */ +#define LINUX_EADDRINUSE 98 /* Address already in use */ +#define LINUX_EADDRNOTAVAIL 99 /* Cannot assign requested address */ +#define LINUX_ENETDOWN 100 /* Network is down */ +#define LINUX_ENETUNREACH 101 /* Network is unreachable */ +#define LINUX_ENETRESET 102 /* Network dropped connection because of reset */ +#define LINUX_ECONNABORTED 103 /* Software caused connection abort */ +#define LINUX_ECONNRESET 104 /* Connection reset by peer */ +#define LINUX_ENOBUFS 105 /* No buffer space available */ +#define LINUX_EISCONN 106 /* Transport endpoint is already connected */ +#define LINUX_ENOTCONN 107 /* Transport endpoint is not connected */ +#define LINUX_ESHUTDOWN 108 /* Cannot send after transport endpoint shutdown */ +#define LINUX_ETOOMANYREFS 109 /* Too many references: cannot splice */ +#define LINUX_ETIMEDOUT 110 /* Connection timed out */ +#define LINUX_ECONNREFUSED 111 /* Connection refused */ +#define LINUX_EHOSTDOWN 112 /* Host is down */ +#define LINUX_EHOSTUNREACH 113 /* No route to host */ +#define LINUX_EALREADY 114 /* Operation already in progress */ +#define LINUX_EINPROGRESS 115 /* Operation now in progress */ +#define LINUX_ESTALE 116 /* Stale NFS file handle */ +#define LINUX_EUCLEAN 117 /* Structure needs cleaning */ +#define LINUX_ENOTNAM 118 /* Not a XENIX named type file */ +#define LINUX_ENAVAIL 119 /* No XENIX semaphores available */ +#define LINUX_EISNAM 120 /* Is a named type file */ +#define LINUX_EREMOTEIO 121 /* Remote I/O error */ +#define LINUX_EDQUOT 122 /* Quota exceeded */ + +#define LINUX_ENOMEDIUM 123 /* No medium found */ +#define LINUX_EMEDIUMTYPE 124 /* Wrong medium type */ + +#else /* !MACH_INCLUDE */ + +#define EPERM 1 /* Operation not permitted */ +#define ENOENT 2 /* No such file or directory */ +#define ESRCH 3 /* No such process */ +#define EINTR 4 /* Interrupted system call */ +#define EIO 5 /* I/O error */ +#define ENXIO 6 /* No such device or address */ +#define E2BIG 7 /* Arg list too long */ +#define ENOEXEC 8 /* Exec format error */ +#define EBADF 9 /* Bad file number */ +#define ECHILD 10 /* No child processes */ +#define EAGAIN 11 /* Try again */ +#define ENOMEM 12 /* Out of memory */ +#define EACCES 13 /* Permission denied */ +#define EFAULT 14 /* Bad address */ +#define ENOTBLK 15 /* Block device required */ +#define EBUSY 16 /* Device or resource busy */ +#define EEXIST 17 /* File exists */ +#define EXDEV 18 /* Cross-device link */ +#define ENODEV 19 /* No such device */ +#define ENOTDIR 20 /* Not a directory */ +#define EISDIR 21 /* Is a directory */ +#define EINVAL 22 /* Invalid argument */ +#define ENFILE 23 /* File table overflow */ +#define EMFILE 24 /* Too many open files */ +#define ENOTTY 25 /* Not a typewriter */ +#define ETXTBSY 26 /* Text file busy */ +#define EFBIG 27 /* File too large */ +#define ENOSPC 28 /* No space left on device */ +#define ESPIPE 29 /* Illegal seek */ +#define EROFS 30 /* Read-only file system */ +#define EMLINK 31 /* Too many links */ +#define EPIPE 32 /* Broken pipe */ +#define EDOM 33 /* Math argument out of domain of func */ +#define ERANGE 34 /* Math result not representable */ +#define EDEADLK 35 /* Resource deadlock would occur */ +#define ENAMETOOLONG 36 /* File name too long */ +#define ENOLCK 37 /* No record locks available */ +#define ENOSYS 38 /* Function not implemented */ +#define ENOTEMPTY 39 /* Directory not empty */ +#define ELOOP 40 /* Too many symbolic links encountered */ +#define EWOULDBLOCK EAGAIN /* Operation would block */ +#define ENOMSG 42 /* No message of desired type */ +#define EIDRM 43 /* Identifier removed */ +#define ECHRNG 44 /* Channel number out of range */ +#define EL2NSYNC 45 /* Level 2 not synchronized */ +#define EL3HLT 46 /* Level 3 halted */ +#define EL3RST 47 /* Level 3 reset */ +#define ELNRNG 48 /* Link number out of range */ +#define EUNATCH 49 /* Protocol driver not attached */ +#define ENOCSI 50 /* No CSI structure available */ +#define EL2HLT 51 /* Level 2 halted */ +#define EBADE 52 /* Invalid exchange */ +#define EBADR 53 /* Invalid request descriptor */ +#define EXFULL 54 /* Exchange full */ +#define ENOANO 55 /* No anode */ +#define EBADRQC 56 /* Invalid request code */ +#define EBADSLT 57 /* Invalid slot */ + +#define EDEADLOCK EDEADLK + +#define EBFONT 59 /* Bad font file format */ +#define ENOSTR 60 /* Device not a stream */ +#define ENODATA 61 /* No data available */ +#define ETIME 62 /* Timer expired */ +#define ENOSR 63 /* Out of streams resources */ +#define ENONET 64 /* Machine is not on the network */ +#define ENOPKG 65 /* Package not installed */ +#define EREMOTE 66 /* Object is remote */ +#define ENOLINK 67 /* Link has been severed */ +#define EADV 68 /* Advertise error */ +#define ESRMNT 69 /* Srmount error */ +#define ECOMM 70 /* Communication error on send */ +#define EPROTO 71 /* Protocol error */ +#define EMULTIHOP 72 /* Multihop attempted */ +#define EDOTDOT 73 /* RFS specific error */ +#define EBADMSG 74 /* Not a data message */ +#define EOVERFLOW 75 /* Value too large for defined data type */ +#define ENOTUNIQ 76 /* Name not unique on network */ +#define EBADFD 77 /* File descriptor in bad state */ +#define EREMCHG 78 /* Remote address changed */ +#define ELIBACC 79 /* Can not access a needed shared library */ +#define ELIBBAD 80 /* Accessing a corrupted shared library */ +#define ELIBSCN 81 /* .lib section in a.out corrupted */ +#define ELIBMAX 82 /* Attempting to link in too many shared libraries */ +#define ELIBEXEC 83 /* Cannot exec a shared library directly */ +#define EILSEQ 84 /* Illegal byte sequence */ +#define ERESTART 85 /* Interrupted system call should be restarted */ +#define ESTRPIPE 86 /* Streams pipe error */ +#define EUSERS 87 /* Too many users */ +#define ENOTSOCK 88 /* Socket operation on non-socket */ +#define EDESTADDRREQ 89 /* Destination address required */ +#define EMSGSIZE 90 /* Message too long */ +#define EPROTOTYPE 91 /* Protocol wrong type for socket */ +#define ENOPROTOOPT 92 /* Protocol not available */ +#define EPROTONOSUPPORT 93 /* Protocol not supported */ +#define ESOCKTNOSUPPORT 94 /* Socket type not supported */ +#define EOPNOTSUPP 95 /* Operation not supported on transport endpoint */ +#define EPFNOSUPPORT 96 /* Protocol family not supported */ +#define EAFNOSUPPORT 97 /* Address family not supported by protocol */ +#define EADDRINUSE 98 /* Address already in use */ +#define EADDRNOTAVAIL 99 /* Cannot assign requested address */ +#define ENETDOWN 100 /* Network is down */ +#define ENETUNREACH 101 /* Network is unreachable */ +#define ENETRESET 102 /* Network dropped connection because of reset */ +#define ECONNABORTED 103 /* Software caused connection abort */ +#define ECONNRESET 104 /* Connection reset by peer */ +#define ENOBUFS 105 /* No buffer space available */ +#define EISCONN 106 /* Transport endpoint is already connected */ +#define ENOTCONN 107 /* Transport endpoint is not connected */ +#define ESHUTDOWN 108 /* Cannot send after transport endpoint shutdown */ +#define ETOOMANYREFS 109 /* Too many references: cannot splice */ +#define ETIMEDOUT 110 /* Connection timed out */ +#define ECONNREFUSED 111 /* Connection refused */ +#define EHOSTDOWN 112 /* Host is down */ +#define EHOSTUNREACH 113 /* No route to host */ +#define EALREADY 114 /* Operation already in progress */ +#define EINPROGRESS 115 /* Operation now in progress */ +#define ESTALE 116 /* Stale NFS file handle */ +#define EUCLEAN 117 /* Structure needs cleaning */ +#define ENOTNAM 118 /* Not a XENIX named type file */ +#define ENAVAIL 119 /* No XENIX semaphores available */ +#define EISNAM 120 /* Is a named type file */ +#define EREMOTEIO 121 /* Remote I/O error */ +#define EDQUOT 122 /* Quota exceeded */ + +#define ENOMEDIUM 123 /* No medium found */ +#define EMEDIUMTYPE 124 /* Wrong medium type */ + +#endif /* !MACH_INCLUDE */ + +#endif diff --git a/linux/dev/include/asm-i386/page.h b/linux/dev/include/asm-i386/page.h new file mode 100644 index 0000000..2bb6837 --- /dev/null +++ b/linux/dev/include/asm-i386/page.h @@ -0,0 +1,64 @@ +#ifndef _I386_PAGE_H +#define _I386_PAGE_H + +#ifndef MACH_INCLUDE +/* PAGE_SHIFT determines the page size */ +#define PAGE_SHIFT 12 +#define PAGE_SIZE (1UL << PAGE_SHIFT) +#define PAGE_MASK (~(PAGE_SIZE-1)) +#endif + +#ifdef __KERNEL__ + +#define STRICT_MM_TYPECHECKS + +#ifdef STRICT_MM_TYPECHECKS +/* + * These are used to make use of C type-checking.. + */ +typedef struct { unsigned long pte; } pte_t; +typedef struct { unsigned long pmd; } pmd_t; +typedef struct { unsigned long pgd; } pgd_t; +typedef struct { unsigned long pgprot; } pgprot_t; + +#define pte_val(x) ((x).pte) +#define pmd_val(x) ((x).pmd) +#define pgd_val(x) ((x).pgd) +#define pgprot_val(x) ((x).pgprot) + +#define __pte(x) ((pte_t) { (x) } ) +#define __pmd(x) ((pmd_t) { (x) } ) +#define __pgd(x) ((pgd_t) { (x) } ) +#define __pgprot(x) ((pgprot_t) { (x) } ) + +#else +/* + * .. while these make it easier on the compiler + */ +typedef unsigned long pte_t; +typedef unsigned long pmd_t; +typedef unsigned long pgd_t; +typedef unsigned long pgprot_t; + +#define pte_val(x) (x) +#define pmd_val(x) (x) +#define pgd_val(x) (x) +#define pgprot_val(x) (x) + +#define __pte(x) (x) +#define __pmd(x) (x) +#define __pgd(x) (x) +#define __pgprot(x) (x) + +#endif + +/* to align the pointer to the (next) page boundary */ +#define PAGE_ALIGN(addr) (((addr)+PAGE_SIZE-1)&PAGE_MASK) + +/* This handles the memory map.. */ +#define PAGE_OFFSET 0 +#define MAP_NR(addr) (((unsigned long)(addr)) >> PAGE_SHIFT) + +#endif /* __KERNEL__ */ + +#endif /* _I386_PAGE_H */ diff --git a/linux/dev/include/asm-i386/segment.h b/linux/dev/include/asm-i386/segment.h new file mode 100644 index 0000000..73952b0 --- /dev/null +++ b/linux/dev/include/asm-i386/segment.h @@ -0,0 +1,351 @@ +#ifndef _ASM_SEGMENT_H +#define _ASM_SEGMENT_H + +#ifdef MACH + +#define KERNEL_CS 0x08 +#define KERNEL_DS 0x10 + +#define USER_CS 0x17 +#define USER_DS 0x1F + +#else /* !MACH */ + +#define KERNEL_CS 0x10 +#define KERNEL_DS 0x18 + +#define USER_CS 0x23 +#define USER_DS 0x2B + +#endif /* !MACH */ + +#ifndef __ASSEMBLY__ + +/* + * Uh, these should become the main single-value transfer routines.. + * They automatically use the right size if we just have the right + * pointer type.. + */ +#define put_user(x,ptr) __put_user((unsigned long)(x),(ptr),sizeof(*(ptr))) +#define get_user(ptr) ((__typeof__(*(ptr)))__get_user((ptr),sizeof(*(ptr)))) + +/* + * This is a silly but good way to make sure that + * the __put_user function is indeed always optimized, + * and that we use the correct sizes.. + */ +extern int bad_user_access_length(void); + +/* + * dummy pointer type structure.. gcc won't try to do something strange + * this way.. + */ +struct __segment_dummy { unsigned long a[100]; }; +#define __sd(x) ((struct __segment_dummy *) (x)) +#define __const_sd(x) ((const struct __segment_dummy *) (x)) + +static inline void __put_user(unsigned long x, void * y, int size) +{ + switch (size) { + case 1: + __asm__ ("movb %b1,%%fs:%0" + :"=m" (*__sd(y)) + :"iq" ((unsigned char) x), "m" (*__sd(y))); + break; + case 2: + __asm__ ("movw %w1,%%fs:%0" + :"=m" (*__sd(y)) + :"ir" ((unsigned short) x), "m" (*__sd(y))); + break; + case 4: + __asm__ ("movl %1,%%fs:%0" + :"=m" (*__sd(y)) + :"ir" (x), "m" (*__sd(y))); + break; + default: + bad_user_access_length(); + } +} + +static inline unsigned long __get_user(const void * y, int size) +{ + unsigned long result; + + switch (size) { + case 1: + __asm__ ("movb %%fs:%1,%b0" + :"=q" (result) + :"m" (*__const_sd(y))); + return (unsigned char) result; + case 2: + __asm__ ("movw %%fs:%1,%w0" + :"=r" (result) + :"m" (*__const_sd(y))); + return (unsigned short) result; + case 4: + __asm__ ("movl %%fs:%1,%0" + :"=r" (result) + :"m" (*__const_sd(y))); + return result; + default: + return bad_user_access_length(); + } +} + +static inline void __generic_memcpy_tofs(void * to, const void * from, unsigned long n) +{ + __asm__ volatile + (" cld + push %%es + push %%fs + cmpl $3,%0 + pop %%es + jbe 1f + movl %%edi,%%ecx + negl %%ecx + andl $3,%%ecx + subl %%ecx,%0 + rep; movsb + movl %0,%%ecx + shrl $2,%%ecx + rep; movsl + andl $3,%0 + 1: movl %0,%%ecx + rep; movsb + pop %%es" + :"=abd" (n) + :"0" (n),"D" ((long) to),"S" ((long) from) + :"cx","di","si"); +} + +static inline void __constant_memcpy_tofs(void * to, const void * from, unsigned long n) +{ + switch (n) { + case 0: + return; + case 1: + __put_user(*(const char *) from, (char *) to, 1); + return; + case 2: + __put_user(*(const short *) from, (short *) to, 2); + return; + case 3: + __put_user(*(const short *) from, (short *) to, 2); + __put_user(*(2+(const char *) from), 2+(char *) to, 1); + return; + case 4: + __put_user(*(const int *) from, (int *) to, 4); + return; + case 8: + __put_user(*(const int *) from, (int *) to, 4); + __put_user(*(1+(const int *) from), 1+(int *) to, 4); + return; + case 12: + __put_user(*(const int *) from, (int *) to, 4); + __put_user(*(1+(const int *) from), 1+(int *) to, 4); + __put_user(*(2+(const int *) from), 2+(int *) to, 4); + return; + case 16: + __put_user(*(const int *) from, (int *) to, 4); + __put_user(*(1+(const int *) from), 1+(int *) to, 4); + __put_user(*(2+(const int *) from), 2+(int *) to, 4); + __put_user(*(3+(const int *) from), 3+(int *) to, 4); + return; + } +#define COMMON(x) \ +__asm__("cld\n\t" \ + "push %%es\n\t" \ + "push %%fs\n\t" \ + "pop %%es\n\t" \ + "rep ; movsl\n\t" \ + x \ + "pop %%es" \ + : /* no outputs */ \ + :"c" (n/4),"D" ((long) to),"S" ((long) from) \ + :"cx","di","si") + + switch (n % 4) { + case 0: + COMMON(""); + return; + case 1: + COMMON("movsb\n\t"); + return; + case 2: + COMMON("movsw\n\t"); + return; + case 3: + COMMON("movsw\n\tmovsb\n\t"); + return; + } +#undef COMMON +} + +static inline void __generic_memcpy_fromfs(void * to, const void * from, unsigned long n) +{ + __asm__ volatile + (" cld + cmpl $3,%0 + jbe 1f + movl %%edi,%%ecx + negl %%ecx + andl $3,%%ecx + subl %%ecx,%0 + fs; rep; movsb + movl %0,%%ecx + shrl $2,%%ecx + fs; rep; movsl + andl $3,%0 + 1: movl %0,%%ecx + fs; rep; movsb" + :"=abd" (n) + :"0" (n),"D" ((long) to),"S" ((long) from) + :"cx","di","si", "memory"); +} + +static inline void __constant_memcpy_fromfs(void * to, const void * from, unsigned long n) +{ + switch (n) { + case 0: + return; + case 1: + *(char *)to = __get_user((const char *) from, 1); + return; + case 2: + *(short *)to = __get_user((const short *) from, 2); + return; + case 3: + *(short *) to = __get_user((const short *) from, 2); + *((char *) to + 2) = __get_user(2+(const char *) from, 1); + return; + case 4: + *(int *) to = __get_user((const int *) from, 4); + return; + case 8: + *(int *) to = __get_user((const int *) from, 4); + *(1+(int *) to) = __get_user(1+(const int *) from, 4); + return; + case 12: + *(int *) to = __get_user((const int *) from, 4); + *(1+(int *) to) = __get_user(1+(const int *) from, 4); + *(2+(int *) to) = __get_user(2+(const int *) from, 4); + return; + case 16: + *(int *) to = __get_user((const int *) from, 4); + *(1+(int *) to) = __get_user(1+(const int *) from, 4); + *(2+(int *) to) = __get_user(2+(const int *) from, 4); + *(3+(int *) to) = __get_user(3+(const int *) from, 4); + return; + } +#define COMMON(x) \ +__asm__("cld\n\t" \ + "rep ; fs ; movsl\n\t" \ + x \ + : /* no outputs */ \ + :"c" (n/4),"D" ((long) to),"S" ((long) from) \ + :"cx","di","si","memory") + + switch (n % 4) { + case 0: + COMMON(""); + return; + case 1: + COMMON("fs ; movsb"); + return; + case 2: + COMMON("fs ; movsw"); + return; + case 3: + COMMON("fs ; movsw\n\tfs ; movsb"); + return; + } +#undef COMMON +} + +#define memcpy_fromfs(to, from, n) \ +(__builtin_constant_p(n) ? \ + __constant_memcpy_fromfs((to),(from),(n)) : \ + __generic_memcpy_fromfs((to),(from),(n))) + +#define memcpy_tofs(to, from, n) \ +(__builtin_constant_p(n) ? \ + __constant_memcpy_tofs((to),(from),(n)) : \ + __generic_memcpy_tofs((to),(from),(n))) + +/* + * These are deprecated.. + * + * Use "put_user()" and "get_user()" with the proper pointer types instead. + */ + +#define get_fs_byte(addr) __get_user((const unsigned char *)(addr),1) +#define get_fs_word(addr) __get_user((const unsigned short *)(addr),2) +#define get_fs_long(addr) __get_user((const unsigned int *)(addr),4) + +#define put_fs_byte(x,addr) __put_user((x),(unsigned char *)(addr),1) +#define put_fs_word(x,addr) __put_user((x),(unsigned short *)(addr),2) +#define put_fs_long(x,addr) __put_user((x),(unsigned int *)(addr),4) + +#ifdef WE_REALLY_WANT_TO_USE_A_BROKEN_INTERFACE + +static inline unsigned short get_user_word(const short *addr) +{ + return __get_user(addr, 2); +} + +static inline unsigned char get_user_byte(const char * addr) +{ + return __get_user(addr,1); +} + +static inline unsigned long get_user_long(const int *addr) +{ + return __get_user(addr, 4); +} + +static inline void put_user_byte(char val,char *addr) +{ + __put_user(val, addr, 1); +} + +static inline void put_user_word(short val,short * addr) +{ + __put_user(val, addr, 2); +} + +static inline void put_user_long(unsigned long val,int * addr) +{ + __put_user(val, addr, 4); +} + +#endif + +/* + * Someone who knows GNU asm better than I should double check the following. + * It seems to work, but I don't know if I'm doing something subtly wrong. + * --- TYT, 11/24/91 + * [ nothing wrong here, Linus: I just changed the ax to be any reg ] + */ + +static inline unsigned long get_fs(void) +{ + unsigned long _v; + __asm__("mov %%fs,%w0":"=r" (_v):"0" (0)); + return _v; +} + +static inline unsigned long get_ds(void) +{ + unsigned long _v; + __asm__("mov %%ds,%w0":"=r" (_v):"0" (0)); + return _v; +} + +static inline void set_fs(unsigned long val) +{ + __asm__ __volatile__("mov %w0,%%fs": /* no output */ :"r" (val)); +} + +#endif /* __ASSEMBLY__ */ + +#endif /* _ASM_SEGMENT_H */ diff --git a/linux/dev/include/asm-i386/string.h b/linux/dev/include/asm-i386/string.h new file mode 100644 index 0000000..144e86e --- /dev/null +++ b/linux/dev/include/asm-i386/string.h @@ -0,0 +1,631 @@ +#ifndef _I386_STRING_H_ +#define _I386_STRING_H_ + +/* + * On a 486 or Pentium, we are better off not using the + * byte string operations. But on a 386 or a PPro the + * byte string ops are faster than doing it by hand + * (MUCH faster on a Pentium). + * + * Also, the byte strings actually work correctly. Forget + * the i486 routines for now as they may be broken.. + */ +#if FIXED_486_STRING && (CPU == 486 || CPU == 586) +#include +#else + +/* + * This string-include defines all string functions as inline + * functions. Use gcc. It also assumes ds=es=data space, this should be + * normal. Most of the string-functions are rather heavily hand-optimized, + * see especially strtok,strstr,str[c]spn. They should work, but are not + * very easy to understand. Everything is done entirely within the register + * set, making the functions fast and clean. String instructions have been + * used through-out, making for "slightly" unclear code :-) + * + * Copyright (C) 1991, 1992 Linus Torvalds + */ + +#define __HAVE_ARCH_STRCPY +extern inline char * strcpy(char * dest,const char *src) +{ +__asm__ __volatile__( + "cld\n" + "1:\tlodsb\n\t" + "stosb\n\t" + "testb %%al,%%al\n\t" + "jne 1b" + : /* no output */ + :"S" (src),"D" (dest):"si","di","ax","memory"); +return dest; +} + +#define __HAVE_ARCH_STRNCPY +extern inline char * strncpy(char * dest,const char *src,size_t count) +{ +__asm__ __volatile__( + "cld\n" + "1:\tdecl %2\n\t" + "js 2f\n\t" + "lodsb\n\t" + "stosb\n\t" + "testb %%al,%%al\n\t" + "jne 1b\n\t" + "rep\n\t" + "stosb\n" + "2:" + : /* no output */ + :"S" (src),"D" (dest),"c" (count):"si","di","ax","cx","memory"); +return dest; +} + +#define __HAVE_ARCH_STRCAT +extern inline char * strcat(char * dest,const char * src) +{ +__asm__ __volatile__( + "cld\n\t" + "repne\n\t" + "scasb\n\t" + "decl %1\n" + "1:\tlodsb\n\t" + "stosb\n\t" + "testb %%al,%%al\n\t" + "jne 1b" + : /* no output */ + :"S" (src),"D" (dest),"a" (0),"c" (0xffffffff):"si","di","ax","cx"); +return dest; +} + +#define __HAVE_ARCH_STRNCAT +extern inline char * strncat(char * dest,const char * src,size_t count) +{ +__asm__ __volatile__( + "cld\n\t" + "repne\n\t" + "scasb\n\t" + "decl %1\n\t" + "movl %4,%3\n" + "1:\tdecl %3\n\t" + "js 2f\n\t" + "lodsb\n\t" + "stosb\n\t" + "testb %%al,%%al\n\t" + "jne 1b\n" + "2:\txorl %2,%2\n\t" + "stosb" + : /* no output */ + :"S" (src),"D" (dest),"a" (0),"c" (0xffffffff),"g" (count) + :"si","di","ax","cx","memory"); +return dest; +} + +#define __HAVE_ARCH_STRCMP +extern inline int strcmp(const char * cs,const char * ct) +{ +register int __res; +__asm__ __volatile__( + "cld\n" + "1:\tlodsb\n\t" + "scasb\n\t" + "jne 2f\n\t" + "testb %%al,%%al\n\t" + "jne 1b\n\t" + "xorl %%eax,%%eax\n\t" + "jmp 3f\n" + "2:\tsbbl %%eax,%%eax\n\t" + "orb $1,%%eax\n" + "3:" + :"=a" (__res):"S" (cs),"D" (ct):"si","di"); +return __res; +} + +#define __HAVE_ARCH_STRNCMP +extern inline int strncmp(const char * cs,const char * ct,size_t count) +{ +register int __res; +__asm__ __volatile__( + "cld\n" + "1:\tdecl %3\n\t" + "js 2f\n\t" + "lodsb\n\t" + "scasb\n\t" + "jne 3f\n\t" + "testb %%al,%%al\n\t" + "jne 1b\n" + "2:\txorl %%eax,%%eax\n\t" + "jmp 4f\n" + "3:\tsbbl %%eax,%%eax\n\t" + "orb $1,%%al\n" + "4:" + :"=a" (__res):"S" (cs),"D" (ct),"c" (count):"si","di","cx"); +return __res; +} + +#define __HAVE_ARCH_STRCHR +extern inline char * strchr(const char * s, int c) +{ +register char * __res; +__asm__ __volatile__( + "cld\n\t" + "movb %%al,%%ah\n" + "1:\tlodsb\n\t" + "cmpb %%ah,%%al\n\t" + "je 2f\n\t" + "testb %%al,%%al\n\t" + "jne 1b\n\t" + "movl $1,%1\n" + "2:\tmovl %1,%0\n\t" + "decl %0" + :"=a" (__res):"S" (s),"0" (c):"si"); +return __res; +} + +#define __HAVE_ARCH_STRRCHR +extern inline char * strrchr(const char * s, int c) +{ +register char * __res; +__asm__ __volatile__( + "cld\n\t" + "movb %%al,%%ah\n" + "1:\tlodsb\n\t" + "cmpb %%ah,%%al\n\t" + "jne 2f\n\t" + "leal -1(%%esi),%0\n" + "2:\ttestb %%al,%%al\n\t" + "jne 1b" + :"=d" (__res):"0" (0),"S" (s),"a" (c):"ax","si"); +return __res; +} + +#define __HAVE_ARCH_STRSPN +extern inline size_t strspn(const char * cs, const char * ct) +{ +register char * __res; +__asm__ __volatile__( + "cld\n\t" + "movl %4,%%edi\n\t" + "repne\n\t" + "scasb\n\t" + "notl %%ecx\n\t" + "decl %%ecx\n\t" + "movl %%ecx,%%edx\n" + "1:\tlodsb\n\t" + "testb %%al,%%al\n\t" + "je 2f\n\t" + "movl %4,%%edi\n\t" + "movl %%edx,%%ecx\n\t" + "repne\n\t" + "scasb\n\t" + "je 1b\n" + "2:\tdecl %0" + :"=S" (__res):"a" (0),"c" (0xffffffff),"0" (cs),"g" (ct) + :"ax","cx","dx","di"); +return __res-cs; +} + +#define __HAVE_ARCH_STRCSPN +extern inline size_t strcspn(const char * cs, const char * ct) +{ +register char * __res; +__asm__ __volatile__( + "cld\n\t" + "movl %4,%%edi\n\t" + "repne\n\t" + "scasb\n\t" + "notl %%ecx\n\t" + "decl %%ecx\n\t" + "movl %%ecx,%%edx\n" + "1:\tlodsb\n\t" + "testb %%al,%%al\n\t" + "je 2f\n\t" + "movl %4,%%edi\n\t" + "movl %%edx,%%ecx\n\t" + "repne\n\t" + "scasb\n\t" + "jne 1b\n" + "2:\tdecl %0" + :"=S" (__res):"a" (0),"c" (0xffffffff),"0" (cs),"g" (ct) + :"ax","cx","dx","di"); +return __res-cs; +} + +#define __HAVE_ARCH_STRPBRK +extern inline char * strpbrk(const char * cs,const char * ct) +{ +register char * __res; +__asm__ __volatile__( + "cld\n\t" + "movl %4,%%edi\n\t" + "repne\n\t" + "scasb\n\t" + "notl %%ecx\n\t" + "decl %%ecx\n\t" + "movl %%ecx,%%edx\n" + "1:\tlodsb\n\t" + "testb %%al,%%al\n\t" + "je 2f\n\t" + "movl %4,%%edi\n\t" + "movl %%edx,%%ecx\n\t" + "repne\n\t" + "scasb\n\t" + "jne 1b\n\t" + "decl %0\n\t" + "jmp 3f\n" + "2:\txorl %0,%0\n" + "3:" + :"=S" (__res):"a" (0),"c" (0xffffffff),"0" (cs),"g" (ct) + :"ax","cx","dx","di"); +return __res; +} + +#define __HAVE_ARCH_STRSTR +extern inline char * strstr(const char * cs,const char * ct) +{ +register char * __res; +__asm__ __volatile__( + "cld\n\t" \ + "repne\n\t" + "scasb\n\t" + "notl %%ecx\n\t" + "decl %%ecx\n\t" /* NOTE! This also sets Z if searchstring='' */ + "movl %%ecx,%%edx\n" + "1:\tmovl %4,%%edi\n\t" + "movl %%esi,%%eax\n\t" + "movl %%edx,%%ecx\n\t" + "repe\n\t" + "cmpsb\n\t" + "je 2f\n\t" /* also works for empty string, see above */ + "xchgl %%eax,%%esi\n\t" + "incl %%esi\n\t" + "cmpb $0,-1(%%eax)\n\t" + "jne 1b\n\t" + "xorl %%eax,%%eax\n\t" + "2:" + :"=a" (__res):"0" (0),"c" (0xffffffff),"S" (cs),"D" (ct), + "g" (*cs), "g" (*ct) + :"cx","dx","di","si"); +return __res; +} + +#define __HAVE_ARCH_STRLEN +extern inline size_t strlen(const char * s) +{ +register int __res; +__asm__ __volatile__( + "cld\n\t" + "repne\n\t" + "scasb\n\t" + "notl %0\n\t" + "decl %0" + :"=c" (__res):"D" (s),"a" (0),"0" (0xffffffff):"di"); +return __res; +} + +#define __HAVE_ARCH_STRTOK +extern inline char * strtok(char * s,const char * ct) +{ +register char * __res; +__asm__ __volatile__( + "testl %1,%1\n\t" + "jne 1f\n\t" + "testl %0,%0\n\t" + "je 8f\n\t" + "movl %0,%1\n" + "1:\txorl %0,%0\n\t" + "movl $-1,%%ecx\n\t" + "xorl %%eax,%%eax\n\t" + "cld\n\t" + "movl %4,%%edi\n\t" + "repne\n\t" + "scasb\n\t" + "notl %%ecx\n\t" + "decl %%ecx\n\t" + "je 7f\n\t" /* empty delimiter-string */ + "movl %%ecx,%%edx\n" + "2:\tlodsb\n\t" + "testb %%al,%%al\n\t" + "je 7f\n\t" + "movl %4,%%edi\n\t" + "movl %%edx,%%ecx\n\t" + "repne\n\t" + "scasb\n\t" + "je 2b\n\t" + "decl %1\n\t" + "cmpb $0,(%1)\n\t" + "je 7f\n\t" + "movl %1,%0\n" + "3:\tlodsb\n\t" + "testb %%al,%%al\n\t" + "je 5f\n\t" + "movl %4,%%edi\n\t" + "movl %%edx,%%ecx\n\t" + "repne\n\t" + "scasb\n\t" + "jne 3b\n\t" + "decl %1\n\t" + "cmpb $0,(%1)\n\t" + "je 5f\n\t" + "movb $0,(%1)\n\t" + "incl %1\n\t" + "jmp 6f\n" + "5:\txorl %1,%1\n" + "6:\tcmpb $0,(%0)\n\t" + "jne 7f\n\t" + "xorl %0,%0\n" + "7:\ttestl %0,%0\n\t" + "jne 8f\n\t" + "movl %0,%1\n" + "8:" + :"=b" (__res),"=S" (___strtok) + :"0" (___strtok),"1" (s),"g" (ct) + :"ax","cx","dx","di","memory"); +return __res; +} + +extern inline void * __memcpy(void * to, const void * from, size_t n) +{ +__asm__ __volatile__( + "cld\n\t" + "rep ; movsl\n\t" + "testb $2,%b1\n\t" + "je 1f\n\t" + "movsw\n" + "1:\ttestb $1,%b1\n\t" + "je 2f\n\t" + "movsb\n" + "2:" + : /* no output */ + :"c" (n/4), "q" (n),"D" ((long) to),"S" ((long) from) + : "cx","di","si","memory"); +return (to); +} + +/* + * This looks horribly ugly, but the compiler can optimize it totally, + * as the count is constant. + */ +extern inline void * __constant_memcpy(void * to, const void * from, size_t n) +{ + switch (n) { + case 0: + return to; + case 1: + *(unsigned char *)to = *(const unsigned char *)from; + return to; + case 2: + *(unsigned short *)to = *(const unsigned short *)from; + return to; + case 3: + *(unsigned short *)to = *(const unsigned short *)from; + *(2+(unsigned char *)to) = *(2+(const unsigned char *)from); + return to; + case 4: + *(unsigned long *)to = *(const unsigned long *)from; + return to; + case 8: + *(unsigned long *)to = *(const unsigned long *)from; + *(1+(unsigned long *)to) = *(1+(const unsigned long *)from); + return to; + case 12: + *(unsigned long *)to = *(const unsigned long *)from; + *(1+(unsigned long *)to) = *(1+(const unsigned long *)from); + *(2+(unsigned long *)to) = *(2+(const unsigned long *)from); + return to; + case 16: + *(unsigned long *)to = *(const unsigned long *)from; + *(1+(unsigned long *)to) = *(1+(const unsigned long *)from); + *(2+(unsigned long *)to) = *(2+(const unsigned long *)from); + *(3+(unsigned long *)to) = *(3+(const unsigned long *)from); + return to; + case 20: + *(unsigned long *)to = *(const unsigned long *)from; + *(1+(unsigned long *)to) = *(1+(const unsigned long *)from); + *(2+(unsigned long *)to) = *(2+(const unsigned long *)from); + *(3+(unsigned long *)to) = *(3+(const unsigned long *)from); + *(4+(unsigned long *)to) = *(4+(const unsigned long *)from); + return to; + } +#define COMMON(x) \ +__asm__("cld\n\t" \ + "rep ; movsl" \ + x \ + : /* no outputs */ \ + : "c" (n/4),"D" ((long) to),"S" ((long) from) \ + : "cx","di","si","memory"); + + switch (n % 4) { + case 0: COMMON(""); return to; + case 1: COMMON("\n\tmovsb"); return to; + case 2: COMMON("\n\tmovsw"); return to; + default: COMMON("\n\tmovsw\n\tmovsb"); return to; + } +#undef COMMON +} + +#define __HAVE_ARCH_MEMCPY +#define memcpy(t, f, n) \ +(__builtin_constant_p(n) ? \ + __constant_memcpy((t),(f),(n)) : \ + __memcpy((t),(f),(n))) + +#define __HAVE_ARCH_MEMMOVE +extern inline void * memmove(void * dest,const void * src, size_t n) +{ +if (dest + +/* + * Entry into gdt where to find first TSS. GDT layout: + * 0 - null + * 1 - not used + * 2 - kernel code segment + * 3 - kernel data segment + * 4 - user code segment + * 5 - user data segment + * ... + * 8 - TSS #0 + * 9 - LDT #0 + * 10 - TSS #1 + * 11 - LDT #1 + */ +#define FIRST_TSS_ENTRY 8 +#define FIRST_LDT_ENTRY (FIRST_TSS_ENTRY+1) +#define _TSS(n) ((((unsigned long) n)<<4)+(FIRST_TSS_ENTRY<<3)) +#define _LDT(n) ((((unsigned long) n)<<4)+(FIRST_LDT_ENTRY<<3)) +#define load_TR(n) __asm__("ltr %%ax": /* no output */ :"a" (_TSS(n))) +#define load_ldt(n) __asm__("lldt %%ax": /* no output */ :"a" (_LDT(n))) +#define store_TR(n) \ +__asm__("str %%ax\n\t" \ + "subl %2,%%eax\n\t" \ + "shrl $4,%%eax" \ + :"=a" (n) \ + :"0" (0),"i" (FIRST_TSS_ENTRY<<3)) + +/* This special macro can be used to load a debugging register */ + +#define loaddebug(tsk,register) \ + __asm__("movl %0,%%edx\n\t" \ + "movl %%edx,%%db" #register "\n\t" \ + : /* no output */ \ + :"m" (tsk->debugreg[register]) \ + :"dx"); + + +/* + * switch_to(n) should switch tasks to task nr n, first + * checking that n isn't the current task, in which case it does nothing. + * This also clears the TS-flag if the task we switched to has used + * the math co-processor latest. + * + * It also reloads the debug regs if necessary.. + */ + + +#ifdef __SMP__ + /* + * Keep the lock depth straight. If we switch on an interrupt from + * kernel->user task we need to lose a depth, and if we switch the + * other way we need to gain a depth. Same layer switches come out + * the same. + * + * We spot a switch in user mode because the kernel counter is the + * same as the interrupt counter depth. (We never switch during the + * message/invalidate IPI). + * + * We fsave/fwait so that an exception goes off at the right time + * (as a call from the fsave or fwait in effect) rather than to + * the wrong process. + */ + +#define switch_to(prev,next) do { \ + cli();\ + if(prev->flags&PF_USEDFPU) \ + { \ + __asm__ __volatile__("fnsave %0":"=m" (prev->tss.i387.hard)); \ + __asm__ __volatile__("fwait"); \ + prev->flags&=~PF_USEDFPU; \ + } \ + prev->lock_depth=syscall_count; \ + kernel_counter+=next->lock_depth-prev->lock_depth; \ + syscall_count=next->lock_depth; \ +__asm__("pushl %%edx\n\t" \ + "movl "SYMBOL_NAME_STR(apic_reg)",%%edx\n\t" \ + "movl 0x20(%%edx), %%edx\n\t" \ + "shrl $22,%%edx\n\t" \ + "and $0x3C,%%edx\n\t" \ + "movl %%ecx,"SYMBOL_NAME_STR(current_set)"(,%%edx)\n\t" \ + "popl %%edx\n\t" \ + "ljmp %0\n\t" \ + "sti\n\t" \ + : /* no output */ \ + :"m" (*(((char *)&next->tss.tr)-4)), \ + "c" (next)); \ + /* Now maybe reload the debug registers */ \ + if(prev->debugreg[7]){ \ + loaddebug(prev,0); \ + loaddebug(prev,1); \ + loaddebug(prev,2); \ + loaddebug(prev,3); \ + loaddebug(prev,6); \ + } \ +} while (0) + +#else +#define switch_to(prev,next) do { \ +__asm__("movl %2,"SYMBOL_NAME_STR(current_set)"\n\t" \ + "ljmp %0\n\t" \ + "cmpl %1,"SYMBOL_NAME_STR(last_task_used_math)"\n\t" \ + "jne 1f\n\t" \ + "clts\n" \ + "1:" \ + : /* no outputs */ \ + :"m" (*(((char *)&next->tss.tr)-4)), \ + "r" (prev), "r" (next)); \ + /* Now maybe reload the debug registers */ \ + if(prev->debugreg[7]){ \ + loaddebug(prev,0); \ + loaddebug(prev,1); \ + loaddebug(prev,2); \ + loaddebug(prev,3); \ + loaddebug(prev,6); \ + } \ +} while (0) +#endif + +#define _set_base(addr,base) \ +__asm__("movw %%dx,%0\n\t" \ + "rorl $16,%%edx\n\t" \ + "movb %%dl,%1\n\t" \ + "movb %%dh,%2" \ + : /* no output */ \ + :"m" (*((addr)+2)), \ + "m" (*((addr)+4)), \ + "m" (*((addr)+7)), \ + "d" (base) \ + :"dx") + +#define _set_limit(addr,limit) \ +__asm__("movw %%dx,%0\n\t" \ + "rorl $16,%%edx\n\t" \ + "movb %1,%%dh\n\t" \ + "andb $0xf0,%%dh\n\t" \ + "orb %%dh,%%dl\n\t" \ + "movb %%dl,%1" \ + : /* no output */ \ + :"m" (*(addr)), \ + "m" (*((addr)+6)), \ + "d" (limit) \ + :"dx") + +#define set_base(ldt,base) _set_base( ((char *)&(ldt)) , base ) +#define set_limit(ldt,limit) _set_limit( ((char *)&(ldt)) , (limit-1)>>12 ) + +static inline unsigned long _get_base(char * addr) +{ + unsigned long __base; + __asm__("movb %3,%%dh\n\t" + "movb %2,%%dl\n\t" + "shll $16,%%edx\n\t" + "movw %1,%%dx" + :"=&d" (__base) + :"m" (*((addr)+2)), + "m" (*((addr)+4)), + "m" (*((addr)+7))); + return __base; +} + +#define get_base(ldt) _get_base( ((char *)&(ldt)) ) + +static inline unsigned long get_limit(unsigned long segment) +{ + unsigned long __limit; + __asm__("lsll %1,%0" + :"=r" (__limit):"r" (segment)); + return __limit+1; +} + +#define nop() __asm__ __volatile__ ("nop") + +/* + * Clear and set 'TS' bit respectively + */ +#define clts() __asm__ __volatile__ ("clts") +#define stts() \ +__asm__ __volatile__ ( \ + "movl %%cr0,%%eax\n\t" \ + "orl $8,%%eax\n\t" \ + "movl %%eax,%%cr0" \ + : /* no outputs */ \ + : /* no inputs */ \ + :"ax") + + +#define xchg(ptr,x) ((__typeof__(*(ptr)))__xchg((unsigned long)(x),(ptr),sizeof(*(ptr)))) +#define tas(ptr) (xchg((ptr),1)) + +struct __xchg_dummy { unsigned long a[100]; }; +#define __xg(x) ((struct __xchg_dummy *)(x)) + +static inline unsigned long __xchg(unsigned long x, void * ptr, int size) +{ + switch (size) { + case 1: + __asm__("xchgb %b0,%1" + :"=q" (x) + :"m" (*__xg(ptr)), "0" (x) + :"memory"); + break; + case 2: + __asm__("xchgw %w0,%1" + :"=r" (x) + :"m" (*__xg(ptr)), "0" (x) + :"memory"); + break; + case 4: + __asm__("xchgl %0,%1" + :"=r" (x) + :"m" (*__xg(ptr)), "0" (x) + :"memory"); + break; + } + return x; +} + +#define mb() __asm__ __volatile__ ("" : : :"memory") +#define sti() __asm__ __volatile__ ("sti": : :"memory") +#define cli() __asm__ __volatile__ ("cli": : :"memory") + +#define save_flags(x) \ +__asm__ __volatile__("pushfl ; popl %0":"=g" (x): /* no input */ :"memory") + +#define restore_flags(x) \ +__asm__ __volatile__("pushl %0 ; popfl": /* no output */ :"g" (x):"memory") + +#define iret() __asm__ __volatile__ ("iret": : :"memory") + +#define _set_gate(gate_addr,type,dpl,addr) \ +__asm__ __volatile__ ("movw %%dx,%%ax\n\t" \ + "movw %2,%%dx\n\t" \ + "movl %%eax,%0\n\t" \ + "movl %%edx,%1" \ + :"=m" (*((long *) (gate_addr))), \ + "=m" (*(1+(long *) (gate_addr))) \ + :"i" ((short) (0x8000+(dpl<<13)+(type<<8))), \ + "d" ((char *) (addr)),"a" (KERNEL_CS << 16) \ + :"ax","dx") + +#define set_intr_gate(n,addr) \ + _set_gate(&idt[n],14,0,addr) + +#define set_trap_gate(n,addr) \ + _set_gate(&idt[n],15,0,addr) + +#define set_system_gate(n,addr) \ + _set_gate(&idt[n],15,3,addr) + +#define set_call_gate(a,addr) \ + _set_gate(a,12,3,addr) + +#define _set_seg_desc(gate_addr,type,dpl,base,limit) {\ + *((gate_addr)+1) = ((base) & 0xff000000) | \ + (((base) & 0x00ff0000)>>16) | \ + ((limit) & 0xf0000) | \ + ((dpl)<<13) | \ + (0x00408000) | \ + ((type)<<8); \ + *(gate_addr) = (((base) & 0x0000ffff)<<16) | \ + ((limit) & 0x0ffff); } + +#define _set_tssldt_desc(n,addr,limit,type) \ +__asm__ __volatile__ ("movw $" #limit ",%1\n\t" \ + "movw %%ax,%2\n\t" \ + "rorl $16,%%eax\n\t" \ + "movb %%al,%3\n\t" \ + "movb $" type ",%4\n\t" \ + "movb $0x00,%5\n\t" \ + "movb %%ah,%6\n\t" \ + "rorl $16,%%eax" \ + : /* no output */ \ + :"a" (addr+0xc0000000), "m" (*(n)), "m" (*(n+2)), "m" (*(n+4)), \ + "m" (*(n+5)), "m" (*(n+6)), "m" (*(n+7)) \ + ) + +#define set_tss_desc(n,addr) _set_tssldt_desc(((char *) (n)),((int)(addr)),235,"0x89") +#define set_ldt_desc(n,addr,size) \ + _set_tssldt_desc(((char *) (n)),((int)(addr)),((size << 3) - 1),"0x82") + +/* + * This is the ldt that every process will get unless we need + * something other than this. + */ +extern struct desc_struct default_ldt; + +/* + * disable hlt during certain critical i/o operations + */ +#ifndef MACH +#define HAVE_DISABLE_HLT +#endif +void disable_hlt(void); +void enable_hlt(void); + +static __inline__ unsigned long long rdmsr(unsigned int msr) +{ + unsigned long long ret; + __asm__ __volatile__("rdmsr" + : "=A" (ret) + : "c" (msr)); + return ret; +} + +static __inline__ void wrmsr(unsigned int msr,unsigned long long val) +{ + __asm__ __volatile__("wrmsr" + : /* no Outputs */ + : "c" (msr), "A" (val)); +} + + +static __inline__ unsigned long long rdtsc(void) +{ + unsigned long long ret; + __asm__ __volatile__("rdtsc" + : "=A" (ret) + : /* no inputs */); + return ret; +} + +static __inline__ unsigned long long rdpmc(unsigned int counter) +{ + unsigned long long ret; + __asm__ __volatile__("rdpmc" + : "=A" (ret) + : "c" (counter)); + return ret; +} + +#endif diff --git a/linux/dev/include/linux/blk.h b/linux/dev/include/linux/blk.h new file mode 100644 index 0000000..ff4e46b --- /dev/null +++ b/linux/dev/include/linux/blk.h @@ -0,0 +1,467 @@ +/* Is this okay? by OKUJI Yoshinori */ +#ifndef _BLK_H +#define _BLK_H + +#include +#include +#include +#include +#include + +/* + * NR_REQUEST is the number of entries in the request-queue. + * NOTE that writes may use only the low 2/3 of these: reads + * take precedence. + */ +#define NR_REQUEST 64 + +/* + * This is used in the elevator algorithm. We don't prioritise reads + * over writes any more --- although reads are more time-critical than + * writes, by treating them equally we increase filesystem throughput. + * This turns out to give better overall performance. -- sct + */ +#define IN_ORDER(s1,s2) \ +((s1)->rq_dev < (s2)->rq_dev || (((s1)->rq_dev == (s2)->rq_dev && \ +(s1)->sector < (s2)->sector))) + +/* + * These will have to be changed to be aware of different buffer + * sizes etc.. It actually needs a major cleanup. + */ +#if defined(IDE_DRIVER) || defined(MD_DRIVER) +#define SECTOR_MASK ((BLOCK_SIZE >> 9) - 1) +#else +#define SECTOR_MASK (blksize_size[MAJOR_NR] && \ + blksize_size[MAJOR_NR][MINOR(CURRENT->rq_dev)] ? \ + ((blksize_size[MAJOR_NR][MINOR(CURRENT->rq_dev)] >> 9) - 1) : \ + ((BLOCK_SIZE >> 9) - 1)) +#endif /* IDE_DRIVER */ + +#define SUBSECTOR(block) (CURRENT->current_nr_sectors > 0) + +#ifdef CONFIG_CDU31A +extern int cdu31a_init(void); +#endif CONFIG_CDU31A +#ifdef CONFIG_MCD +extern int mcd_init(void); +#endif CONFIG_MCD +#ifdef CONFIG_MCDX +extern int mcdx_init(void); +#endif CONFIG_MCDX +#ifdef CONFIG_SBPCD +extern int sbpcd_init(void); +#endif CONFIG_SBPCD +#ifdef CONFIG_AZTCD +extern int aztcd_init(void); +#endif CONFIG_AZTCD +#ifdef CONFIG_CDU535 +extern int sony535_init(void); +#endif CONFIG_CDU535 +#ifdef CONFIG_GSCD +extern int gscd_init(void); +#endif CONFIG_GSCD +#ifdef CONFIG_CM206 +extern int cm206_init(void); +#endif CONFIG_CM206 +#ifdef CONFIG_OPTCD +extern int optcd_init(void); +#endif CONFIG_OPTCD +#ifdef CONFIG_SJCD +extern int sjcd_init(void); +#endif CONFIG_SJCD +#ifdef CONFIG_CDI_INIT +extern int cdi_init(void); +#endif CONFIG_CDI_INIT +#ifdef CONFIG_BLK_DEV_HD +extern int hd_init(void); +#endif +#ifdef CONFIG_BLK_DEV_IDE +extern int ide_init(void); +#endif +#ifdef CONFIG_BLK_DEV_XD +extern int xd_init(void); +#endif +#ifdef CONFIG_BLK_DEV_LOOP +extern int loop_init(void); +#endif +#ifdef CONFIG_BLK_DEV_MD +extern int md_init(void); +#endif CONFIG_BLK_DEV_MD + +extern void set_device_ro(kdev_t dev,int flag); +void add_blkdev_randomness(int major); + +extern int floppy_init(void); +extern void rd_load(void); +extern int rd_init(void); +extern int rd_doload; /* 1 = load ramdisk, 0 = don't load */ +extern int rd_prompt; /* 1 = prompt for ramdisk, 0 = don't prompt */ +extern int rd_image_start; /* starting block # of image */ + +#ifdef CONFIG_BLK_DEV_INITRD + +#define INITRD_MINOR 250 /* shouldn't collide with /dev/ram* too soon ... */ + +extern unsigned long initrd_start,initrd_end; +extern int mount_initrd; /* zero if initrd should not be mounted */ +void initrd_init(void); + +#endif + +#define RO_IOCTLS(dev,where) \ + case BLKROSET: { int __err; if (!suser()) return -EACCES; \ + __err = verify_area(VERIFY_READ, (void *) (where), sizeof(long)); \ + if (!__err) set_device_ro((dev),get_fs_long((long *) (where))); return __err; } \ + case BLKROGET: { int __err = verify_area(VERIFY_WRITE, (void *) (where), sizeof(long)); \ + if (!__err) put_fs_long(0!=is_read_only(dev),(long *) (where)); return __err; } + +#if defined(MAJOR_NR) || defined(IDE_DRIVER) + +/* + * Add entries as needed. + */ + +#ifdef IDE_DRIVER + +#define DEVICE_NR(device) (MINOR(device) >> PARTN_BITS) +#define DEVICE_ON(device) /* nothing */ +#define DEVICE_OFF(device) /* nothing */ + +#elif (MAJOR_NR == RAMDISK_MAJOR) + +/* ram disk */ +#define DEVICE_NAME "ramdisk" +#define DEVICE_REQUEST rd_request +#define DEVICE_NR(device) (MINOR(device)) +#define DEVICE_ON(device) +#define DEVICE_OFF(device) +#define DEVICE_NO_RANDOM + +#elif (MAJOR_NR == FLOPPY_MAJOR) + +static void floppy_off(unsigned int nr); + +#define DEVICE_NAME "floppy" +#define DEVICE_INTR do_floppy +#define DEVICE_REQUEST do_fd_request +#define DEVICE_NR(device) ( (MINOR(device) & 3) | ((MINOR(device) & 0x80 ) >> 5 )) +#define DEVICE_ON(device) +#define DEVICE_OFF(device) floppy_off(DEVICE_NR(device)) + +#elif (MAJOR_NR == HD_MAJOR) + +/* harddisk: timeout is 6 seconds.. */ +#define DEVICE_NAME "harddisk" +#define DEVICE_INTR do_hd +#define DEVICE_TIMEOUT HD_TIMER +#define TIMEOUT_VALUE (6*HZ) +#define DEVICE_REQUEST do_hd_request +#define DEVICE_NR(device) (MINOR(device)>>6) +#define DEVICE_ON(device) +#define DEVICE_OFF(device) + +#elif (MAJOR_NR == SCSI_DISK_MAJOR) + +#define DEVICE_NAME "scsidisk" +#define DEVICE_INTR do_sd +#define TIMEOUT_VALUE (2*HZ) +#define DEVICE_REQUEST do_sd_request +#define DEVICE_NR(device) (MINOR(device) >> 4) +#define DEVICE_ON(device) +#define DEVICE_OFF(device) + +/* Kludge to use the same number for both char and block major numbers */ +#elif (MAJOR_NR == MD_MAJOR) && defined(MD_DRIVER) + +#define DEVICE_NAME "Multiple devices driver" +#define DEVICE_REQUEST do_md_request +#define DEVICE_NR(device) (MINOR(device)) +#define DEVICE_ON(device) +#define DEVICE_OFF(device) + +#elif (MAJOR_NR == SCSI_TAPE_MAJOR) + +#define DEVICE_NAME "scsitape" +#define DEVICE_INTR do_st +#define DEVICE_NR(device) (MINOR(device) & 0x7f) +#define DEVICE_ON(device) +#define DEVICE_OFF(device) + +#elif (MAJOR_NR == SCSI_CDROM_MAJOR) + +#define DEVICE_NAME "CD-ROM" +#define DEVICE_INTR do_sr +#define DEVICE_REQUEST do_sr_request +#define DEVICE_NR(device) (MINOR(device)) +#define DEVICE_ON(device) +#define DEVICE_OFF(device) + +#elif (MAJOR_NR == XT_DISK_MAJOR) + +#define DEVICE_NAME "xt disk" +#define DEVICE_REQUEST do_xd_request +#define DEVICE_NR(device) (MINOR(device) >> 6) +#define DEVICE_ON(device) +#define DEVICE_OFF(device) + +#elif (MAJOR_NR == CDU31A_CDROM_MAJOR) + +#define DEVICE_NAME "CDU31A" +#define DEVICE_REQUEST do_cdu31a_request +#define DEVICE_NR(device) (MINOR(device)) +#define DEVICE_ON(device) +#define DEVICE_OFF(device) + +#elif (MAJOR_NR == MITSUMI_CDROM_MAJOR) + +#define DEVICE_NAME "Mitsumi CD-ROM" +/* #define DEVICE_INTR do_mcd */ +#define DEVICE_REQUEST do_mcd_request +#define DEVICE_NR(device) (MINOR(device)) +#define DEVICE_ON(device) +#define DEVICE_OFF(device) + +#elif (MAJOR_NR == MITSUMI_X_CDROM_MAJOR) + +#define DEVICE_NAME "Mitsumi CD-ROM" +/* #define DEVICE_INTR do_mcdx */ +#define DEVICE_REQUEST do_mcdx_request +#define DEVICE_NR(device) (MINOR(device)) +#define DEVICE_ON(device) +#define DEVICE_OFF(device) + +#elif (MAJOR_NR == MATSUSHITA_CDROM_MAJOR) + +#define DEVICE_NAME "Matsushita CD-ROM controller #1" +#define DEVICE_REQUEST do_sbpcd_request +#define DEVICE_NR(device) (MINOR(device)) +#define DEVICE_ON(device) +#define DEVICE_OFF(device) + +#elif (MAJOR_NR == MATSUSHITA_CDROM2_MAJOR) + +#define DEVICE_NAME "Matsushita CD-ROM controller #2" +#define DEVICE_REQUEST do_sbpcd2_request +#define DEVICE_NR(device) (MINOR(device)) +#define DEVICE_ON(device) +#define DEVICE_OFF(device) + +#elif (MAJOR_NR == MATSUSHITA_CDROM3_MAJOR) + +#define DEVICE_NAME "Matsushita CD-ROM controller #3" +#define DEVICE_REQUEST do_sbpcd3_request +#define DEVICE_NR(device) (MINOR(device)) +#define DEVICE_ON(device) +#define DEVICE_OFF(device) + +#elif (MAJOR_NR == MATSUSHITA_CDROM4_MAJOR) + +#define DEVICE_NAME "Matsushita CD-ROM controller #4" +#define DEVICE_REQUEST do_sbpcd4_request +#define DEVICE_NR(device) (MINOR(device)) +#define DEVICE_ON(device) +#define DEVICE_OFF(device) + +#elif (MAJOR_NR == AZTECH_CDROM_MAJOR) + +#define DEVICE_NAME "Aztech CD-ROM" +#define DEVICE_REQUEST do_aztcd_request +#define DEVICE_NR(device) (MINOR(device)) +#define DEVICE_ON(device) +#define DEVICE_OFF(device) + +#elif (MAJOR_NR == CDU535_CDROM_MAJOR) + +#define DEVICE_NAME "SONY-CDU535" +#define DEVICE_INTR do_cdu535 +#define DEVICE_REQUEST do_cdu535_request +#define DEVICE_NR(device) (MINOR(device)) +#define DEVICE_ON(device) +#define DEVICE_OFF(device) + +#elif (MAJOR_NR == GOLDSTAR_CDROM_MAJOR) + +#define DEVICE_NAME "Goldstar R420" +#define DEVICE_REQUEST do_gscd_request +#define DEVICE_NR(device) (MINOR(device)) +#define DEVICE_ON(device) +#define DEVICE_OFF(device) + +#elif (MAJOR_NR == CM206_CDROM_MAJOR) +#define DEVICE_NAME "Philips/LMS cd-rom cm206" +#define DEVICE_REQUEST do_cm206_request +#define DEVICE_NR(device) (MINOR(device)) +#define DEVICE_ON(device) +#define DEVICE_OFF(device) + +#elif (MAJOR_NR == OPTICS_CDROM_MAJOR) + +#define DEVICE_NAME "DOLPHIN 8000AT CD-ROM" +#define DEVICE_REQUEST do_optcd_request +#define DEVICE_NR(device) (MINOR(device)) +#define DEVICE_ON(device) +#define DEVICE_OFF(device) + +#elif (MAJOR_NR == SANYO_CDROM_MAJOR) + +#define DEVICE_NAME "Sanyo H94A CD-ROM" +#define DEVICE_REQUEST do_sjcd_request +#define DEVICE_NR(device) (MINOR(device)) +#define DEVICE_ON(device) +#define DEVICE_OFF(device) + +#endif /* MAJOR_NR == whatever */ + +#if (MAJOR_NR != SCSI_TAPE_MAJOR) +#if !defined(IDE_DRIVER) + +#ifndef CURRENT +#define CURRENT (blk_dev[MAJOR_NR].current_request) +#endif + +#define CURRENT_DEV DEVICE_NR(CURRENT->rq_dev) + +#ifdef DEVICE_INTR +static void (*DEVICE_INTR)(void) = NULL; +#endif +#ifdef DEVICE_TIMEOUT + +#define SET_TIMER \ +((timer_table[DEVICE_TIMEOUT].expires = jiffies + TIMEOUT_VALUE), \ +(timer_active |= 1<rq_dev) != MAJOR_NR) \ + panic(DEVICE_NAME ": request list destroyed"); \ + if (CURRENT->bh) { \ + if (!buffer_locked(CURRENT->bh)) \ + panic(DEVICE_NAME ": block not locked"); \ + } + +#endif /* !defined(IDE_DRIVER) */ + +/* end_request() - SCSI devices have their own version */ +/* - IDE drivers have their own copy too */ + +#if ! SCSI_BLK_MAJOR(MAJOR_NR) + +#if defined(IDE_DRIVER) && !defined(_IDE_C) /* shared copy for IDE modules */ +void ide_end_request(byte uptodate, ide_hwgroup_t *hwgroup); +#else + +#ifdef IDE_DRIVER +void ide_end_request(byte uptodate, ide_hwgroup_t *hwgroup) { + struct request *req = hwgroup->rq; +#else +static void end_request(int uptodate) { + struct request *req = CURRENT; +#endif /* IDE_DRIVER */ + struct buffer_head * bh; + int nsect; + + req->errors = 0; + if (!uptodate) { + printk("end_request: I/O error, dev %s, sector %lu\n", + kdevname(req->rq_dev), req->sector); +#ifdef MACH + for (bh = req->bh; bh; ) + { + struct buffer_head *next = bh->b_reqnext; + bh->b_reqnext = NULL; + mark_buffer_uptodate (bh, 0); + unlock_buffer (bh); + bh = next; + } + req->bh = NULL; +#else + if ((bh = req->bh) != NULL) { + nsect = bh->b_size >> 9; + req->nr_sectors--; + req->nr_sectors &= ~(nsect - 1); + req->sector += nsect; + req->sector &= ~(nsect - 1); + } +#endif + } + + if ((bh = req->bh) != NULL) { + req->bh = bh->b_reqnext; + bh->b_reqnext = NULL; + + /* + * This is our 'MD IO has finished' event handler. + * note that b_state should be cached in a register + * anyways, so the overhead if this checking is almost + * zero. But anyways .. we never get OO for free :) + */ + if (test_bit(BH_MD, &bh->b_state)) { + struct md_personality * pers=(struct md_personality *)bh->personality; + pers->end_request(bh,uptodate); + } + /* + * the normal (nonmirrored and no RAID5) case: + */ + else { + mark_buffer_uptodate(bh, uptodate); + unlock_buffer(bh); + } + if ((bh = req->bh) != NULL) { + req->current_nr_sectors = bh->b_size >> 9; + if (req->nr_sectors < req->current_nr_sectors) { + req->nr_sectors = req->current_nr_sectors; + printk("end_request: buffer-list destroyed\n"); + } + req->buffer = bh->b_data; + return; + } + } +#ifndef DEVICE_NO_RANDOM + add_blkdev_randomness(MAJOR(req->rq_dev)); +#endif +#ifdef IDE_DRIVER + blk_dev[MAJOR(req->rq_dev)].current_request = req->next; + hwgroup->rq = NULL; +#else + DEVICE_OFF(req->rq_dev); + CURRENT = req->next; +#endif /* IDE_DRIVER */ + if (req->sem != NULL) + up(req->sem); + req->rq_status = RQ_INACTIVE; + wake_up(&wait_for_request); +} +#endif /* defined(IDE_DRIVER) && !defined(_IDE_C) */ +#endif /* ! SCSI_BLK_MAJOR(MAJOR_NR) */ +#endif /* (MAJOR_NR != SCSI_TAPE_MAJOR) */ + +#endif /* defined(MAJOR_NR) || defined(IDE_DRIVER) */ + +#endif /* _BLK_H */ diff --git a/linux/dev/include/linux/blkdev.h b/linux/dev/include/linux/blkdev.h new file mode 100644 index 0000000..e9a40d7 --- /dev/null +++ b/linux/dev/include/linux/blkdev.h @@ -0,0 +1,72 @@ +#ifndef _LINUX_BLKDEV_H +#define _LINUX_BLKDEV_H + +#include +#include +#include +#include + +/* + * Ok, this is an expanded form so that we can use the same + * request for paging requests when that is implemented. In + * paging, 'bh' is NULL, and the semaphore is used to wait + * for read/write completion. + */ +struct request { + volatile int rq_status; /* should split this into a few status bits */ +#define RQ_INACTIVE (-1) +#define RQ_ACTIVE 1 +#define RQ_SCSI_BUSY 0xffff +#define RQ_SCSI_DONE 0xfffe +#define RQ_SCSI_DISCONNECTING 0xffe0 + + kdev_t rq_dev; + int cmd; /* READ or WRITE */ + int errors; + unsigned long sector; + unsigned long nr_sectors; + unsigned long current_nr_sectors; + char * buffer; + struct semaphore * sem; + struct buffer_head * bh; + struct buffer_head * bhtail; + struct request * next; +}; + +struct blk_dev_struct { + void (*request_fn)(void); + struct request * current_request; + struct request plug; + struct tq_struct plug_tq; +}; + +struct sec_size { + unsigned block_size; + unsigned block_size_bits; +}; + +extern struct sec_size * blk_sec[MAX_BLKDEV]; +extern struct blk_dev_struct blk_dev[MAX_BLKDEV]; +extern struct wait_queue * wait_for_request; +extern void resetup_one_dev(struct gendisk *dev, int drive); + +#ifdef MACH +extern inline void unplug_device(void *data) { } +#else +extern void unplug_device(void * data); +#endif + +extern void make_request(int major,int rw, struct buffer_head * bh); + +/* md needs this function to remap requests */ +extern int md_map (int minor, kdev_t *rdev, unsigned long *rsector, unsigned long size); +extern int md_make_request (int major, int rw, struct buffer_head * bh); +extern int md_error (kdev_t mddev, kdev_t rdev); + +extern int * blk_size[MAX_BLKDEV]; + +extern int * blksize_size[MAX_BLKDEV]; + +extern int * hardsect_size[MAX_BLKDEV]; + +#endif diff --git a/linux/dev/include/linux/compile.h b/linux/dev/include/linux/compile.h new file mode 100644 index 0000000..7d43a20 --- /dev/null +++ b/linux/dev/include/linux/compile.h @@ -0,0 +1,6 @@ +#define UTS_VERSION "#11 Fri Apr 24 23:03:10 JST 1998" +#define LINUX_COMPILE_TIME "23:03:10" +#define LINUX_COMPILE_BY "somebody" +#define LINUX_COMPILE_HOST "unknown" +#define LINUX_COMPILE_DOMAIN "somewhere.org" +#define LINUX_COMPILER "gcc version 2.7.2.3" diff --git a/linux/dev/include/linux/etherdevice.h b/linux/dev/include/linux/etherdevice.h new file mode 100644 index 0000000..eb262b2 --- /dev/null +++ b/linux/dev/include/linux/etherdevice.h @@ -0,0 +1,62 @@ +/* + * INET An implementation of the TCP/IP protocol suite for the LINUX + * operating system. NET is implemented using the BSD Socket + * interface as the means of communication with the user level. + * + * Definitions for the Ethernet handlers. + * + * Version: @(#)eth.h 1.0.4 05/13/93 + * + * Authors: Ross Biro, + * Fred N. van Kempen, + * + * Relocated to include/linux where it belongs by Alan Cox + * + * + * This program is free software; you can redistribute it and/or + * modify it under the terms of the GNU General Public License + * as published by the Free Software Foundation; either version + * 2 of the License, or (at your option) any later version. + * + * WARNING: This move may well be temporary. This file will get merged with others RSN. + * + */ +#ifndef _LINUX_ETHERDEVICE_H +#define _LINUX_ETHERDEVICE_H + + +#include + +#ifdef __KERNEL__ +extern int eth_header(struct sk_buff *skb, struct device *dev, + unsigned short type, void *daddr, + void *saddr, unsigned len); +extern int eth_rebuild_header(void *buff, struct device *dev, + unsigned long dst, struct sk_buff *skb); + +/* This cause skb->protocol = 0. I don't sure if this is really ok. + * Last modified: 19980402 by OKUJI Yoshinori + */ +#ifdef MACH +#define eth_type_trans(skb, dev) ((unsigned short)0) +#else +extern unsigned short eth_type_trans(struct sk_buff *skb, struct device *dev); +#endif + +extern void eth_header_cache_bind(struct hh_cache ** hhp, struct device *dev, + unsigned short htype, __u32 daddr); +extern void eth_header_cache_update(struct hh_cache *hh, struct device *dev, unsigned char * haddr); + +#ifdef MACH +#define eth_copy_and_sum(dest, src, length, base) \ + memcpy((dest)->data, src, length) +#else +extern void eth_copy_and_sum(struct sk_buff *dest, + unsigned char *src, int length, int base); +#endif + +extern struct device * init_etherdev(struct device *, int); + +#endif + +#endif /* _LINUX_ETHERDEVICE_H */ diff --git a/linux/dev/include/linux/fs.h b/linux/dev/include/linux/fs.h new file mode 100644 index 0000000..974e9e7 --- /dev/null +++ b/linux/dev/include/linux/fs.h @@ -0,0 +1,803 @@ +#ifndef _LINUX_FS_H +#define _LINUX_FS_H + +/* + * This file has definitions for some important file table + * structures etc. + */ + +#include +#include +#include +#include +#include +#include +#include +#include +#include + +/* + * It's silly to have NR_OPEN bigger than NR_FILE, but I'll fix + * that later. Anyway, now the file code is no longer dependent + * on bitmaps in unsigned longs, but uses the new fd_set structure.. + * + * Some programs (notably those using select()) may have to be + * recompiled to take full advantage of the new limits.. + */ + +/* Fixed constants first: */ +#undef NR_OPEN +#define NR_OPEN 256 + +#define NR_SUPER 64 +#define BLOCK_SIZE 1024 +#define BLOCK_SIZE_BITS 10 + +/* And dynamically-tunable limits and defaults: */ +extern int max_inodes, nr_inodes; +extern int max_files, nr_files; +#define NR_INODE 3072 /* this should be bigger than NR_FILE */ +#define NR_FILE 1024 /* this can well be larger on a larger system */ + +#define MAY_EXEC 1 +#define MAY_WRITE 2 +#define MAY_READ 4 + +#define FMODE_READ 1 +#define FMODE_WRITE 2 + +#define READ 0 +#define WRITE 1 +#define READA 2 /* read-ahead - don't block if no resources */ +#define WRITEA 3 /* write-ahead - don't block if no resources */ + +#ifndef NULL +#define NULL ((void *) 0) +#endif + +#define NIL_FILP ((struct file *)0) +#define SEL_IN 1 +#define SEL_OUT 2 +#define SEL_EX 4 + +/* + * These are the fs-independent mount-flags: up to 16 flags are supported + */ +#define MS_RDONLY 1 /* Mount read-only */ +#define MS_NOSUID 2 /* Ignore suid and sgid bits */ +#define MS_NODEV 4 /* Disallow access to device special files */ +#define MS_NOEXEC 8 /* Disallow program execution */ +#define MS_SYNCHRONOUS 16 /* Writes are synced at once */ +#define MS_REMOUNT 32 /* Alter flags of a mounted FS */ +#define MS_MANDLOCK 64 /* Allow mandatory locks on an FS */ +#define S_WRITE 128 /* Write on file/directory/symlink */ +#define S_APPEND 256 /* Append-only file */ +#define S_IMMUTABLE 512 /* Immutable file */ +#define MS_NOATIME 1024 /* Do not update access times. */ +#define S_BAD_INODE 2048 /* Marker for unreadable inodes */ +#define S_ZERO_WR 4096 /* Device accepts 0 length writes */ +/* + * Flags that can be altered by MS_REMOUNT + */ +#define MS_RMT_MASK (MS_RDONLY|MS_NOSUID|MS_NODEV|MS_NOEXEC|MS_SYNCHRONOUS|MS_MANDLOCK|MS_NOATIME) + +/* + * Magic mount flag number. Has to be or-ed to the flag values. + */ +#define MS_MGC_VAL 0xC0ED0000 /* magic flag number to indicate "new" flags */ +#define MS_MGC_MSK 0xffff0000 /* magic flag number mask */ + +/* + * Note that read-only etc flags are inode-specific: setting some file-system + * flags just means all the inodes inherit those flags by default. It might be + * possible to override it selectively if you really wanted to with some + * ioctl() that is not currently implemented. + * + * Exception: MS_RDONLY is always applied to the entire file system. + */ +#define IS_RDONLY(inode) (((inode)->i_sb) && ((inode)->i_sb->s_flags & MS_RDONLY)) +#define IS_NOSUID(inode) ((inode)->i_flags & MS_NOSUID) +#define IS_NODEV(inode) ((inode)->i_flags & MS_NODEV) +#define IS_NOEXEC(inode) ((inode)->i_flags & MS_NOEXEC) +#define IS_SYNC(inode) ((inode)->i_flags & MS_SYNCHRONOUS) +#define IS_MANDLOCK(inode) ((inode)->i_flags & MS_MANDLOCK) + +#define IS_WRITABLE(inode) ((inode)->i_flags & S_WRITE) +#define IS_APPEND(inode) ((inode)->i_flags & S_APPEND) +#define IS_IMMUTABLE(inode) ((inode)->i_flags & S_IMMUTABLE) +#define IS_NOATIME(inode) ((inode)->i_flags & MS_NOATIME) +#define IS_ZERO_WR(inode) ((inode)->i_flags & S_ZERO_WR) + +#define UPDATE_ATIME(inode) \ + if (!IS_NOATIME(inode) && !IS_RDONLY(inode)) { \ + inode->i_atime = CURRENT_TIME; \ + inode->i_dirt = 1; \ + } + +/* the read-only stuff doesn't really belong here, but any other place is + probably as bad and I don't want to create yet another include file. */ + +#define BLKROSET _IO(0x12,93) /* set device read-only (0 = read-write) */ +#define BLKROGET _IO(0x12,94) /* get read-only status (0 = read_write) */ +#define BLKRRPART _IO(0x12,95) /* re-read partition table */ +#define BLKGETSIZE _IO(0x12,96) /* return device size */ +#define BLKFLSBUF _IO(0x12,97) /* flush buffer cache */ +#define BLKRASET _IO(0x12,98) /* Set read ahead for block device */ +#define BLKRAGET _IO(0x12,99) /* get current read ahead setting */ + +#define BMAP_IOCTL 1 /* obsolete - kept for compatibility */ +#define FIBMAP _IO(0x00,1) /* bmap access */ +#define FIGETBSZ _IO(0x00,2) /* get the block size used for bmap */ + +#ifdef __KERNEL__ + +#include +#include + +extern void buffer_init(void); +extern unsigned long inode_init(unsigned long start, unsigned long end); +extern unsigned long file_table_init(unsigned long start, unsigned long end); +extern unsigned long name_cache_init(unsigned long start, unsigned long end); + +typedef char buffer_block[BLOCK_SIZE]; + +/* bh state bits */ +#define BH_Uptodate 0 /* 1 if the buffer contains valid data */ +#define BH_Dirty 1 /* 1 if the buffer is dirty */ +#define BH_Lock 2 /* 1 if the buffer is locked */ +#define BH_Req 3 /* 0 if the buffer has been invalidated */ +#define BH_Touched 4 /* 1 if the buffer has been touched (aging) */ +#define BH_Has_aged 5 /* 1 if the buffer has been aged (aging) */ +#define BH_Protected 6 /* 1 if the buffer is protected */ +#define BH_FreeOnIO 7 /* 1 to discard the buffer_head after IO */ +#define BH_MD 8 /* 1 if the buffer is an MD request */ + +/* + * Try to keep the most commonly used fields in single cache lines (16 + * bytes) to improve performance. This ordering should be + * particularly beneficial on 32-bit processors. + * + * We use the first 16 bytes for the data which is used in searches + * over the block hash lists (ie. getblk(), find_buffer() and + * friends). + * + * The second 16 bytes we use for lru buffer scans, as used by + * sync_buffers() and refill_freelist(). -- sct + */ +struct buffer_head { + /* First cache line: */ + unsigned long b_blocknr; /* block number */ + kdev_t b_dev; /* device (B_FREE = free) */ + kdev_t b_rdev; /* Real device */ + unsigned long b_rsector; /* Real buffer location on disk */ + struct buffer_head * b_next; /* Hash queue list */ + struct buffer_head * b_this_page; /* circular list of buffers in one page */ + + /* Second cache line: */ + unsigned long b_state; /* buffer state bitmap (see above) */ + struct buffer_head * b_next_free; + unsigned int b_count; /* users using this block */ + unsigned long b_size; /* block size */ + + /* Non-performance-critical data follows. */ + char * b_data; /* pointer to data block (1024 bytes) */ + unsigned int b_list; /* List that this buffer appears */ + unsigned long b_flushtime; /* Time when this (dirty) buffer + * should be written */ + unsigned long b_lru_time; /* Time when this buffer was + * last used. */ + struct wait_queue * b_wait; + struct buffer_head * b_prev; /* doubly linked list of hash-queue */ + struct buffer_head * b_prev_free; /* doubly linked list of buffers */ + struct buffer_head * b_reqnext; /* request queue */ + +/* + * Some MD stuff like RAID5 needs special event handlers and + * special private buffer_head fields: + */ + void * personality; + void * private_bh; +}; + +static inline int buffer_uptodate(struct buffer_head * bh) +{ + return test_bit(BH_Uptodate, &bh->b_state); +} + +static inline int buffer_dirty(struct buffer_head * bh) +{ + return test_bit(BH_Dirty, &bh->b_state); +} + +static inline int buffer_locked(struct buffer_head * bh) +{ + return test_bit(BH_Lock, &bh->b_state); +} + +static inline int buffer_req(struct buffer_head * bh) +{ + return test_bit(BH_Req, &bh->b_state); +} + +static inline int buffer_touched(struct buffer_head * bh) +{ + return test_bit(BH_Touched, &bh->b_state); +} + +static inline int buffer_has_aged(struct buffer_head * bh) +{ + return test_bit(BH_Has_aged, &bh->b_state); +} + +static inline int buffer_protected(struct buffer_head * bh) +{ + return test_bit(BH_Protected, &bh->b_state); +} + +#ifndef MACH +#include +#include +#include +#include +#include +#include +#include +#include +#include +#include +#include +#include +#include +#endif + +/* + * Attribute flags. These should be or-ed together to figure out what + * has been changed! + */ +#define ATTR_MODE 1 +#define ATTR_UID 2 +#define ATTR_GID 4 +#define ATTR_SIZE 8 +#define ATTR_ATIME 16 +#define ATTR_MTIME 32 +#define ATTR_CTIME 64 +#define ATTR_ATIME_SET 128 +#define ATTR_MTIME_SET 256 +#define ATTR_FORCE 512 /* Not a change, but a change it */ + +/* + * This is the Inode Attributes structure, used for notify_change(). It + * uses the above definitions as flags, to know which values have changed. + * Also, in this manner, a Filesystem can look at only the values it cares + * about. Basically, these are the attributes that the VFS layer can + * request to change from the FS layer. + * + * Derek Atkins 94-10-20 + */ +struct iattr { + unsigned int ia_valid; + umode_t ia_mode; + uid_t ia_uid; + gid_t ia_gid; + off_t ia_size; + time_t ia_atime; + time_t ia_mtime; + time_t ia_ctime; +}; + +#include + +#ifdef MACH +/* Supress GCC's warnings. by OKUJI Yoshinori. */ +struct vm_area_struct; +struct page; + +struct inode +{ + umode_t i_mode; + kdev_t i_rdev; +}; + +struct file +{ + mode_t f_mode; + loff_t f_pos; + unsigned short f_flags; + int f_resid; + void *f_object; + void *f_np; +}; + +#else /* !MACH */ + +struct inode { + kdev_t i_dev; + unsigned long i_ino; + umode_t i_mode; + nlink_t i_nlink; + uid_t i_uid; + gid_t i_gid; + kdev_t i_rdev; + off_t i_size; + time_t i_atime; + time_t i_mtime; + time_t i_ctime; + unsigned long i_blksize; + unsigned long i_blocks; + unsigned long i_version; + unsigned long i_nrpages; + struct semaphore i_sem; + struct inode_operations *i_op; + struct super_block *i_sb; + struct wait_queue *i_wait; + struct file_lock *i_flock; + struct vm_area_struct *i_mmap; + struct page *i_pages; + struct dquot *i_dquot[MAXQUOTAS]; + struct inode *i_next, *i_prev; + struct inode *i_hash_next, *i_hash_prev; + struct inode *i_bound_to, *i_bound_by; + struct inode *i_mount; + unsigned long i_count; + unsigned short i_flags; + unsigned short i_writecount; + unsigned char i_lock; + unsigned char i_dirt; + unsigned char i_pipe; + unsigned char i_sock; + unsigned char i_seek; + unsigned char i_update; + unsigned char i_condemned; + union { + struct pipe_inode_info pipe_i; + struct minix_inode_info minix_i; + struct ext_inode_info ext_i; + struct ext2_inode_info ext2_i; + struct hpfs_inode_info hpfs_i; + struct msdos_inode_info msdos_i; + struct umsdos_inode_info umsdos_i; + struct iso_inode_info isofs_i; + struct nfs_inode_info nfs_i; + struct xiafs_inode_info xiafs_i; + struct sysv_inode_info sysv_i; + struct affs_inode_info affs_i; + struct ufs_inode_info ufs_i; + struct socket socket_i; + void * generic_ip; + } u; +}; + +struct fown_struct { + int pid; /* pid or -pgrp where SIGIO should be sent */ + uid_t uid, euid; /* uid/euid of process setting the owner */ +}; + +struct file { + mode_t f_mode; + loff_t f_pos; + unsigned short f_flags; + unsigned short f_count; + unsigned long f_reada, f_ramax, f_raend, f_ralen, f_rawin; + struct file *f_next, *f_prev; + struct fown_struct f_owner; + struct inode * f_inode; + struct file_operations * f_op; + unsigned long f_version; + void *private_data; /* needed for tty driver, and maybe others */ +}; +#endif /* !MACH */ + +#define FL_POSIX 1 +#define FL_FLOCK 2 +#define FL_BROKEN 4 /* broken flock() emulation */ +#define FL_ACCESS 8 /* for processes suspended by mandatory locking */ + +struct file_lock { + struct file_lock *fl_next; /* singly linked list for this inode */ + struct file_lock *fl_nextlink; /* doubly linked list of all locks */ + struct file_lock *fl_prevlink; /* used to simplify lock removal */ + struct file_lock *fl_nextblock; /* circular list of blocked processes */ + struct file_lock *fl_prevblock; + struct task_struct *fl_owner; + struct wait_queue *fl_wait; + struct file *fl_file; + unsigned char fl_flags; + unsigned char fl_type; + off_t fl_start; + off_t fl_end; +}; + +#include + +extern int fcntl_getlk(unsigned int fd, struct flock *l); +extern int fcntl_setlk(unsigned int fd, unsigned int cmd, struct flock *l); +extern void locks_remove_locks(struct task_struct *task, struct file *filp); + +#include + +#define FLOCK_VERIFY_READ 1 +#define FLOCK_VERIFY_WRITE 2 + +extern int locks_mandatory_locked(struct inode *inode); +extern int locks_mandatory_area(int read_write, struct inode *inode, + struct file *filp, unsigned int offset, + unsigned int count); + +#ifndef MACH +extern inline int locks_verify_locked(struct inode *inode) +{ + /* Candidates for mandatory locking have the setgid bit set + * but no group execute bit - an otherwise meaningless combination. + */ + if (IS_MANDLOCK(inode) && + (inode->i_mode & (S_ISGID | S_IXGRP)) == S_ISGID) + return (locks_mandatory_locked(inode)); + return (0); +} +extern inline int locks_verify_area(int read_write, struct inode *inode, + struct file *filp, unsigned int offset, + unsigned int count) +{ + /* Candidates for mandatory locking have the setgid bit set + * but no group execute bit - an otherwise meaningless combination. + */ + if (IS_MANDLOCK(inode) && + (inode->i_mode & (S_ISGID | S_IXGRP)) == S_ISGID) + return (locks_mandatory_area(read_write, inode, filp, offset, + count)); + return (0); +} +#endif + +struct fasync_struct { + int magic; + struct fasync_struct *fa_next; /* singly linked list */ + struct file *fa_file; +}; + +#define FASYNC_MAGIC 0x4601 + +extern int fasync_helper(struct inode *, struct file *, int, struct fasync_struct **); + +#ifndef MACH +#include +#include +#include +#include +#include +#include +#include +#include +#include +#include +#include + +struct super_block { + kdev_t s_dev; + unsigned long s_blocksize; + unsigned char s_blocksize_bits; + unsigned char s_lock; + unsigned char s_rd_only; + unsigned char s_dirt; + struct file_system_type *s_type; + struct super_operations *s_op; + struct dquot_operations *dq_op; + unsigned long s_flags; + unsigned long s_magic; + unsigned long s_time; + struct inode * s_covered; + struct inode * s_mounted; + struct wait_queue * s_wait; + union { + struct minix_sb_info minix_sb; + struct ext_sb_info ext_sb; + struct ext2_sb_info ext2_sb; + struct hpfs_sb_info hpfs_sb; + struct msdos_sb_info msdos_sb; + struct isofs_sb_info isofs_sb; + struct nfs_sb_info nfs_sb; + struct xiafs_sb_info xiafs_sb; + struct sysv_sb_info sysv_sb; + struct affs_sb_info affs_sb; + struct ufs_sb_info ufs_sb; + void *generic_sbp; + } u; +}; +#endif /* !MACH */ + +/* + * This is the "filldir" function type, used by readdir() to let + * the kernel specify what kind of dirent layout it wants to have. + * This allows the kernel to read directories into kernel space or + * to have different dirent layouts depending on the binary type. + */ +typedef int (*filldir_t)(void *, const char *, int, off_t, ino_t); + +struct file_operations { + int (*lseek) (struct inode *, struct file *, off_t, int); + int (*read) (struct inode *, struct file *, char *, int); + int (*write) (struct inode *, struct file *, const char *, int); + int (*readdir) (struct inode *, struct file *, void *, filldir_t); + int (*select) (struct inode *, struct file *, int, select_table *); + int (*ioctl) (struct inode *, struct file *, unsigned int, unsigned long); + int (*mmap) (struct inode *, struct file *, struct vm_area_struct *); + int (*open) (struct inode *, struct file *); + void (*release) (struct inode *, struct file *); + int (*fsync) (struct inode *, struct file *); + int (*fasync) (struct inode *, struct file *, int); + int (*check_media_change) (kdev_t dev); + int (*revalidate) (kdev_t dev); +}; + +struct inode_operations { + struct file_operations * default_file_ops; + int (*create) (struct inode *,const char *,int,int,struct inode **); + int (*lookup) (struct inode *,const char *,int,struct inode **); + int (*link) (struct inode *,struct inode *,const char *,int); + int (*unlink) (struct inode *,const char *,int); + int (*symlink) (struct inode *,const char *,int,const char *); + int (*mkdir) (struct inode *,const char *,int,int); + int (*rmdir) (struct inode *,const char *,int); + int (*mknod) (struct inode *,const char *,int,int,int); + int (*rename) (struct inode *,const char *,int,struct inode *,const char *,int, int); + int (*readlink) (struct inode *,char *,int); + int (*follow_link) (struct inode *,struct inode *,int,int,struct inode **); + int (*readpage) (struct inode *, struct page *); + int (*writepage) (struct inode *, struct page *); + int (*bmap) (struct inode *,int); + void (*truncate) (struct inode *); + int (*permission) (struct inode *, int); + int (*smap) (struct inode *,int); +}; + +struct super_operations { + void (*read_inode) (struct inode *); + int (*notify_change) (struct inode *, struct iattr *); + void (*write_inode) (struct inode *); + void (*put_inode) (struct inode *); + void (*put_super) (struct super_block *); + void (*write_super) (struct super_block *); + void (*statfs) (struct super_block *, struct statfs *, int); + int (*remount_fs) (struct super_block *, int *, char *); +}; + +struct dquot_operations { + void (*initialize) (struct inode *, short); + void (*drop) (struct inode *); + int (*alloc_block) (const struct inode *, unsigned long); + int (*alloc_inode) (const struct inode *, unsigned long); + void (*free_block) (const struct inode *, unsigned long); + void (*free_inode) (const struct inode *, unsigned long); + int (*transfer) (struct inode *, struct iattr *, char); +}; + +struct file_system_type { + struct super_block *(*read_super) (struct super_block *, void *, int); + const char *name; + int requires_dev; + struct file_system_type * next; +}; + +extern int register_filesystem(struct file_system_type *); +extern int unregister_filesystem(struct file_system_type *); + +asmlinkage int sys_open(const char *, int, int); +asmlinkage int sys_close(unsigned int); /* yes, it's really unsigned */ +asmlinkage int sys_read(unsigned int, char *, int); + +extern void kill_fasync(struct fasync_struct *fa, int sig); + +extern int getname(const char * filename, char **result); +extern void putname(char * name); +extern int do_truncate(struct inode *, unsigned long); +extern int register_blkdev(unsigned int, const char *, struct file_operations *); +extern int unregister_blkdev(unsigned int major, const char * name); +extern int blkdev_open(struct inode * inode, struct file * filp); +extern void blkdev_release (struct inode * inode); +extern struct file_operations def_blk_fops; +extern struct inode_operations blkdev_inode_operations; + +extern int register_chrdev(unsigned int, const char *, struct file_operations *); +extern int unregister_chrdev(unsigned int major, const char * name); +extern int chrdev_open(struct inode * inode, struct file * filp); +extern struct file_operations def_chr_fops; +extern struct inode_operations chrdev_inode_operations; + +extern void init_fifo(struct inode * inode); +extern struct inode_operations fifo_inode_operations; + +extern struct file_operations connecting_fifo_fops; +extern struct file_operations read_fifo_fops; +extern struct file_operations write_fifo_fops; +extern struct file_operations rdwr_fifo_fops; +extern struct file_operations read_pipe_fops; +extern struct file_operations write_pipe_fops; +extern struct file_operations rdwr_pipe_fops; + +extern struct file_system_type *get_fs_type(const char *name); + +extern int fs_may_mount(kdev_t dev); +extern int fs_may_umount(kdev_t dev, struct inode * mount_root); +extern int fs_may_remount_ro(kdev_t dev); + +extern struct file *first_file; +extern struct super_block super_blocks[NR_SUPER]; + +extern void refile_buffer(struct buffer_head * buf); +extern void set_writetime(struct buffer_head * buf, int flag); +extern int try_to_free_buffer(struct buffer_head*, struct buffer_head**, int); + +extern int nr_buffers; +extern int buffermem; +extern int nr_buffer_heads; + +#define BUF_CLEAN 0 +#define BUF_LOCKED 1 /* Buffers scheduled for write */ +#define BUF_LOCKED1 2 /* Supers, inodes */ +#define BUF_DIRTY 3 /* Dirty buffers, not yet scheduled for write */ +#define NR_LIST 4 + +#ifdef MACH +extern inline void +mark_buffer_uptodate (struct buffer_head *bh, int on) +{ + if (on) + set_bit (BH_Uptodate, &bh->b_state); + else + clear_bit (BH_Uptodate, &bh->b_state); +} +#else +void mark_buffer_uptodate(struct buffer_head * bh, int on); +#endif + +extern inline void mark_buffer_clean(struct buffer_head * bh) +{ +#ifdef MACH + clear_bit (BH_Dirty, &bh->b_state); +#else + if (clear_bit(BH_Dirty, &bh->b_state)) { + if (bh->b_list == BUF_DIRTY) + refile_buffer(bh); + } +#endif +} + +extern inline void mark_buffer_dirty(struct buffer_head * bh, int flag) +{ +#ifdef MACH + set_bit (BH_Dirty, &bh->b_state); +#else + if (!set_bit(BH_Dirty, &bh->b_state)) { + set_writetime(bh, flag); + if (bh->b_list != BUF_DIRTY) + refile_buffer(bh); + } +#endif +} + +extern int check_disk_change(kdev_t dev); + +#ifdef MACH +#define invalidate_inodes(dev) +#else +extern void invalidate_inodes(kdev_t dev); +#endif + +extern void invalidate_inode_pages(struct inode *); + +#ifdef MACH +#define invalidate_buffers(dev) +#else +extern void invalidate_buffers(kdev_t dev); +#endif + +extern int floppy_is_wp(int minor); +extern void sync_inodes(kdev_t dev); + +#ifdef MACH +#define sync_dev(dev) +#define fsync_dev(dev) +#else +extern void sync_dev(kdev_t dev); +extern int fsync_dev(kdev_t dev); +#endif + +extern void sync_supers(kdev_t dev); +extern int bmap(struct inode * inode,int block); +extern int notify_change(struct inode *, struct iattr *); +extern int namei(const char * pathname, struct inode ** res_inode); +extern int lnamei(const char * pathname, struct inode ** res_inode); + +#ifdef MACH +#define permission(inode, mask) 0 +#else +extern int permission(struct inode * inode,int mask); +#endif + +extern int get_write_access(struct inode *inode); +extern void put_write_access(struct inode *inode); +extern int open_namei(const char * pathname, int flag, int mode, + struct inode ** res_inode, struct inode * base); +extern int do_mknod(const char * filename, int mode, dev_t dev); +extern int do_pipe(int *); +extern void iput(struct inode * inode); +extern struct inode * __iget(struct super_block * sb,int nr,int crsmnt); +extern struct inode * get_empty_inode(void); +extern void insert_inode_hash(struct inode *); +extern void clear_inode(struct inode *); +extern struct inode * get_pipe_inode(void); +extern void make_bad_inode(struct inode *); +extern int get_unused_fd(void); +extern void put_unused_fd(int); +extern struct file * get_empty_filp(void); +extern int close_fp(struct file *filp); +extern struct buffer_head * get_hash_table(kdev_t dev, int block, int size); +extern struct buffer_head * getblk(kdev_t dev, int block, int size); +extern void ll_rw_block(int rw, int nr, struct buffer_head * bh[]); +extern void ll_rw_page(int rw, kdev_t dev, unsigned long nr, char * buffer); +extern void ll_rw_swap_file(int rw, kdev_t dev, unsigned int *b, int nb, char *buffer); +extern int is_read_only(kdev_t dev); +extern void __brelse(struct buffer_head *buf); +extern inline void brelse(struct buffer_head *buf) +{ + if (buf) + __brelse(buf); +} +extern void __bforget(struct buffer_head *buf); +extern inline void bforget(struct buffer_head *buf) +{ + if (buf) + __bforget(buf); +} +extern void set_blocksize(kdev_t dev, int size); +extern struct buffer_head * bread(kdev_t dev, int block, int size); +extern struct buffer_head * breada(kdev_t dev,int block, int size, + unsigned int pos, unsigned int filesize); + +extern int generic_readpage(struct inode *, struct page *); +extern int generic_file_read(struct inode *, struct file *, char *, int); +extern int generic_file_mmap(struct inode *, struct file *, struct vm_area_struct *); +extern int brw_page(int, struct page *, kdev_t, int [], int, int); + +extern void put_super(kdev_t dev); +unsigned long generate_cluster(kdev_t dev, int b[], int size); +extern kdev_t ROOT_DEV; + +extern void show_buffers(void); +extern void mount_root(void); + +#ifdef CONFIG_BLK_DEV_INITRD +extern kdev_t real_root_dev; +extern int change_root(kdev_t new_root_dev,const char *put_old); +#endif + +extern int char_read(struct inode *, struct file *, char *, int); +extern int block_read(struct inode *, struct file *, char *, int); +extern int read_ahead[]; + +extern int char_write(struct inode *, struct file *, const char *, int); +extern int block_write(struct inode *, struct file *, const char *, int); + +extern int block_fsync(struct inode *, struct file *); +extern int file_fsync(struct inode *, struct file *); + +extern void dcache_add(struct inode *, const char *, int, unsigned long); +extern int dcache_lookup(struct inode *, const char *, int, unsigned long *); + +extern int inode_change_ok(struct inode *, struct iattr *); +extern void inode_setattr(struct inode *, struct iattr *); + +extern inline struct inode * iget(struct super_block * sb,int nr) +{ + return __iget(sb, nr, 1); +} + +/* kludge to get SCSI modules working */ +#ifndef MACH +#include +#include +#endif + +#endif /* __KERNEL__ */ + +#endif diff --git a/linux/dev/include/linux/genhd.h b/linux/dev/include/linux/genhd.h new file mode 100644 index 0000000..20a6c97 --- /dev/null +++ b/linux/dev/include/linux/genhd.h @@ -0,0 +1,141 @@ +#ifndef _LINUX_GENHD_H +#define _LINUX_GENHD_H + +/* + * genhd.h Copyright (C) 1992 Drew Eckhardt + * Generic hard disk header file by + * Drew Eckhardt + * + * + */ + +#include + +#define CONFIG_MSDOS_PARTITION 1 + +#ifdef __alpha__ +#define CONFIG_OSF_PARTITION 1 +#endif + +#if defined(__sparc__) || defined(CONFIG_SMD_DISKLABEL) +#define CONFIG_SUN_PARTITION 1 +#endif + +/* These three have identical behaviour; use the second one if DOS fdisk gets + confused about extended/logical partitions starting past cylinder 1023. */ +#define DOS_EXTENDED_PARTITION 5 +#define LINUX_EXTENDED_PARTITION 0x85 +#define WIN98_EXTENDED_PARTITION 0x0f + +#define DM6_PARTITION 0x54 /* has DDO: use xlated geom & offset */ +#define EZD_PARTITION 0x55 /* EZ-DRIVE: same as DM6 (we think) */ +#define DM6_AUX1PARTITION 0x51 /* no DDO: use xlated geom */ +#define DM6_AUX3PARTITION 0x53 /* no DDO: use xlated geom */ + +#ifdef MACH_INCLUDE +struct linux_partition +{ +#else +struct partition { +#endif + unsigned char boot_ind; /* 0x80 - active */ + unsigned char head; /* starting head */ + unsigned char sector; /* starting sector */ + unsigned char cyl; /* starting cylinder */ + unsigned char sys_ind; /* What partition type */ + unsigned char end_head; /* end head */ + unsigned char end_sector; /* end sector */ + unsigned char end_cyl; /* end cylinder */ + unsigned int start_sect; /* starting sector counting from 0 */ + unsigned int nr_sects; /* nr of sectors in partition */ +} __attribute((packed)); /* Give a polite hint to egcs/alpha to generate + unaligned operations */ + +struct hd_struct { + long start_sect; + long nr_sects; +}; + +struct gendisk { + int major; /* major number of driver */ + const char *major_name; /* name of major driver */ + int minor_shift; /* number of times minor is shifted to + get real minor */ + int max_p; /* maximum partitions per device */ + int max_nr; /* maximum number of real devices */ + + void (*init)(struct gendisk *); /* Initialization called before we do our thing */ + struct hd_struct *part; /* partition table */ + int *sizes; /* device size in blocks, copied to blk_size[] */ + int nr_real; /* number of real devices */ + + void *real_devices; /* internal use */ + struct gendisk *next; +}; + +#ifdef CONFIG_BSD_DISKLABEL +/* + * BSD disklabel support by Yossi Gottlieb + */ + +#define BSD_PARTITION 0xa5 /* Partition ID */ + +#define BSD_DISKMAGIC (0x82564557UL) /* The disk magic number */ +#define BSD_MAXPARTITIONS 8 +#define BSD_FS_UNUSED 0 /* disklabel unused partition entry ID */ +struct bsd_disklabel { + __u32 d_magic; /* the magic number */ + __s16 d_type; /* drive type */ + __s16 d_subtype; /* controller/d_type specific */ + char d_typename[16]; /* type name, e.g. "eagle" */ + char d_packname[16]; /* pack identifier */ + __u32 d_secsize; /* # of bytes per sector */ + __u32 d_nsectors; /* # of data sectors per track */ + __u32 d_ntracks; /* # of tracks per cylinder */ + __u32 d_ncylinders; /* # of data cylinders per unit */ + __u32 d_secpercyl; /* # of data sectors per cylinder */ + __u32 d_secperunit; /* # of data sectors per unit */ + __u16 d_sparespertrack; /* # of spare sectors per track */ + __u16 d_sparespercyl; /* # of spare sectors per cylinder */ + __u32 d_acylinders; /* # of alt. cylinders per unit */ + __u16 d_rpm; /* rotational speed */ + __u16 d_interleave; /* hardware sector interleave */ + __u16 d_trackskew; /* sector 0 skew, per track */ + __u16 d_cylskew; /* sector 0 skew, per cylinder */ + __u32 d_headswitch; /* head switch time, usec */ + __u32 d_trkseek; /* track-to-track seek, usec */ + __u32 d_flags; /* generic flags */ +#define NDDATA 5 + __u32 d_drivedata[NDDATA]; /* drive-type specific information */ +#define NSPARE 5 + __u32 d_spare[NSPARE]; /* reserved for future use */ + __u32 d_magic2; /* the magic number (again) */ + __u16 d_checksum; /* xor of data incl. partitions */ + + /* filesystem and partition information: */ + __u16 d_npartitions; /* number of partitions in following */ + __u32 d_bbsize; /* size of boot area at sn0, bytes */ + __u32 d_sbsize; /* max size of fs superblock, bytes */ + struct bsd_partition { /* the partition table */ + __u32 p_size; /* number of sectors in partition */ + __u32 p_offset; /* starting sector */ + __u32 p_fsize; /* filesystem basic fragment size */ + __u8 p_fstype; /* filesystem type, see below */ + __u8 p_frag; /* filesystem fragments per block */ + __u16 p_cpg; /* filesystem cylinders per group */ + } d_partitions[BSD_MAXPARTITIONS]; /* actually may be more */ +}; + +#endif /* CONFIG_BSD_DISKLABEL */ + +extern struct gendisk *gendisk_head; /* linked list of disks */ + +/* + * disk_name() is used by genhd.c and md.c. + * It formats the devicename of the indicated disk + * into the supplied buffer, and returns a pointer + * to that same buffer (for convenience). + */ +char *disk_name (struct gendisk *hd, int minor, char *buf); + +#endif diff --git a/linux/dev/include/linux/if.h b/linux/dev/include/linux/if.h new file mode 100644 index 0000000..50dd138 --- /dev/null +++ b/linux/dev/include/linux/if.h @@ -0,0 +1,184 @@ +/* + * INET An implementation of the TCP/IP protocol suite for the LINUX + * operating system. INET is implemented using the BSD Socket + * interface as the means of communication with the user level. + * + * Global definitions for the INET interface module. + * + * Version: @(#)if.h 1.0.2 04/18/93 + * + * Authors: Original taken from Berkeley UNIX 4.3, (c) UCB 1982-1988 + * Ross Biro, + * Fred N. van Kempen, + * + * This program is free software; you can redistribute it and/or + * modify it under the terms of the GNU General Public License + * as published by the Free Software Foundation; either version + * 2 of the License, or (at your option) any later version. + */ +#ifndef _LINUX_IF_H +#define _LINUX_IF_H + +#include /* for "caddr_t" et al */ +#include /* for "struct sockaddr" et al */ + +/* Standard interface flags. */ + +#ifdef MACH_INCLUDE + +#define LINUX_IFF_UP 0x1 /* interface is up */ +#define LINUX_IFF_BROADCAST 0x2 /* broadcast address valid */ +#define LINUX_IFF_DEBUG 0x4 /* turn on debugging */ +#define LINUX_IFF_LOOPBACK 0x8 /* is a loopback net */ +#define LINUX_IFF_POINTOPOINT 0x10 /* interface is has p-p link */ +#define LINUX_IFF_NOTRAILERS 0x20 /* avoid use of trailers */ +#define LINUX_IFF_RUNNING 0x40 /* resources allocated */ +#define LINUX_IFF_NOARP 0x80 /* no ARP protocol */ +#define LINUX_IFF_PROMISC 0x100 /* receive all packets */ +/* Not supported */ +#define LINUX_IFF_ALLMULTI 0x200 /* receive all multicast packets*/ + +#define LINUX_IFF_MASTER 0x400 /* master of a load balancer */ +#define LINUX_IFF_SLAVE 0x800 /* slave of a load balancer */ + +#define LINUX_IFF_MULTICAST 0x1000 /* Supports multicast */ +#define LINUX_IFF_SOFTHEADERS 0x2000 /* Device cannot construct headers + * until broadcast time. Therefore + * SOCK_PACKET must call header + * construction. Private flag. + * Never visible outside of kernel. + */ + +#else /* !MACH_INCLUDE */ + +#define IFF_UP 0x1 /* interface is up */ +#define IFF_BROADCAST 0x2 /* broadcast address valid */ +#define IFF_DEBUG 0x4 /* turn on debugging */ +#define IFF_LOOPBACK 0x8 /* is a loopback net */ +#define IFF_POINTOPOINT 0x10 /* interface is has p-p link */ +#define IFF_NOTRAILERS 0x20 /* avoid use of trailers */ +#define IFF_RUNNING 0x40 /* resources allocated */ +#define IFF_NOARP 0x80 /* no ARP protocol */ +#define IFF_PROMISC 0x100 /* receive all packets */ +/* Not supported */ +#define IFF_ALLMULTI 0x200 /* receive all multicast packets*/ + +#define IFF_MASTER 0x400 /* master of a load balancer */ +#define IFF_SLAVE 0x800 /* slave of a load balancer */ + +#define IFF_MULTICAST 0x1000 /* Supports multicast */ +#define IFF_SOFTHEADERS 0x2000 /* Device cannot construct headers + * until broadcast time. Therefore + * SOCK_PACKET must call header + * construction. Private flag. + * Never visible outside of kernel. + */ +#endif /* !MACH_INCLUDE */ + +/* + * The ifaddr structure contains information about one address + * of an interface. They are maintained by the different address + * families, are allocated and attached when an address is set, + * and are linked together so all addresses for an interface can + * be located. + */ + +struct ifaddr +{ + struct sockaddr ifa_addr; /* address of interface */ + union { + struct sockaddr ifu_broadaddr; + struct sockaddr ifu_dstaddr; + } ifa_ifu; + struct iface *ifa_ifp; /* back-pointer to interface */ + struct ifaddr *ifa_next; /* next address for interface */ +}; + +#define ifa_broadaddr ifa_ifu.ifu_broadaddr /* broadcast address */ +#define ifa_dstaddr ifa_ifu.ifu_dstaddr /* other end of link */ + +/* + * Device mapping structure. I'd just gone off and designed a + * beautiful scheme using only loadable modules with arguments + * for driver options and along come the PCMCIA people 8) + * + * Ah well. The get() side of this is good for WDSETUP, and it'll + * be handy for debugging things. The set side is fine for now and + * being very small might be worth keeping for clean configuration. + */ + +struct ifmap +{ + unsigned long mem_start; + unsigned long mem_end; + unsigned short base_addr; + unsigned char irq; + unsigned char dma; + unsigned char port; + /* 3 bytes spare */ +}; + +/* + * Interface request structure used for socket + * ioctl's. All interface ioctl's must have parameter + * definitions which begin with ifr_name. The + * remainder may be interface specific. + */ + +struct ifreq +{ +#define IFHWADDRLEN 6 +#define IFNAMSIZ 16 + union + { + char ifrn_name[IFNAMSIZ]; /* if name, e.g. "en0" */ + } ifr_ifrn; + + union { + struct sockaddr ifru_addr; + struct sockaddr ifru_dstaddr; + struct sockaddr ifru_broadaddr; + struct sockaddr ifru_netmask; + struct sockaddr ifru_hwaddr; + short ifru_flags; + int ifru_metric; + int ifru_mtu; + struct ifmap ifru_map; + char ifru_slave[IFNAMSIZ]; /* Just fits the size */ + caddr_t ifru_data; + } ifr_ifru; +}; + +#define ifr_name ifr_ifrn.ifrn_name /* interface name */ +#define ifr_hwaddr ifr_ifru.ifru_hwaddr /* MAC address */ +#define ifr_addr ifr_ifru.ifru_addr /* address */ +#define ifr_dstaddr ifr_ifru.ifru_dstaddr /* other end of p-p lnk */ +#define ifr_broadaddr ifr_ifru.ifru_broadaddr /* broadcast address */ +#define ifr_netmask ifr_ifru.ifru_netmask /* interface net mask */ +#define ifr_flags ifr_ifru.ifru_flags /* flags */ +#define ifr_metric ifr_ifru.ifru_metric /* metric */ +#define ifr_mtu ifr_ifru.ifru_mtu /* mtu */ +#define ifr_map ifr_ifru.ifru_map /* device map */ +#define ifr_slave ifr_ifru.ifru_slave /* slave device */ +#define ifr_data ifr_ifru.ifru_data /* for use by interface */ + +/* + * Structure used in SIOCGIFCONF request. + * Used to retrieve interface configuration + * for machine (useful for programs which + * must know all networks accessible). + */ + +struct ifconf +{ + int ifc_len; /* size of buffer */ + union + { + caddr_t ifcu_buf; + struct ifreq *ifcu_req; + } ifc_ifcu; +}; +#define ifc_buf ifc_ifcu.ifcu_buf /* buffer address */ +#define ifc_req ifc_ifcu.ifcu_req /* array of structures */ + +#endif /* _LINUX_IF_H */ diff --git a/linux/dev/include/linux/kernel.h b/linux/dev/include/linux/kernel.h new file mode 100644 index 0000000..aef73ac --- /dev/null +++ b/linux/dev/include/linux/kernel.h @@ -0,0 +1,107 @@ +#ifndef _LINUX_KERNEL_H +#define _LINUX_KERNEL_H + +/* + * 'kernel.h' contains some often-used function prototypes etc + */ + +#ifdef __KERNEL__ + +#include +#include + +/* Optimization barrier */ +#define barrier() __asm__("": : :"memory") + +#define INT_MAX ((int)(~0U>>1)) +#define UINT_MAX (~0U) +#define LONG_MAX ((long)(~0UL>>1)) +#define ULONG_MAX (~0UL) + +#define STACK_MAGIC 0xdeadbeef + +#define KERN_EMERG "<0>" /* system is unusable */ +#define KERN_ALERT "<1>" /* action must be taken immediately */ +#define KERN_CRIT "<2>" /* critical conditions */ +#define KERN_ERR "<3>" /* error conditions */ +#define KERN_WARNING "<4>" /* warning conditions */ +#define KERN_NOTICE "<5>" /* normal but significant condition */ +#define KERN_INFO "<6>" /* informational */ +#define KERN_DEBUG "<7>" /* debug-level messages */ + +# define NORET_TYPE /**/ +# define ATTRIB_NORET __attribute__((noreturn)) +# define NORET_AND noreturn, + +extern void math_error(void); +NORET_TYPE void panic(const char * fmt, ...) + __attribute__ ((NORET_AND format (printf, 1, 2))); +NORET_TYPE void do_exit(long error_code) + ATTRIB_NORET; +extern unsigned long simple_strtoul(const char *,char **,unsigned int); + +extern int linux_sprintf(char *buf, const char *fmt, ...); +extern int linux_vsprintf(char *buf, const char *fmt, va_list args); + +#ifndef MACH_INCLUDE +#define sprintf linux_sprintf +#define vsprintf linux_vsprintf +#endif + +extern int session_of_pgrp(int pgrp); + +extern int kill_proc(int pid, int sig, int priv); +extern int kill_pg(int pgrp, int sig, int priv); +extern int kill_sl(int sess, int sig, int priv); + +asmlinkage int printk(const char * fmt, ...) + __attribute__ ((format (printf, 1, 2))); + +#if DEBUG +#define pr_debug(fmt,arg...) \ + printk(KERN_DEBUG fmt,##arg) +#else +#define pr_debug(fmt,arg...) \ + do { } while (0) +#endif + +#define pr_info(fmt,arg...) \ + printk(KERN_INFO fmt,##arg) + +/* + * "suser()" checks against the effective user id, while "fsuser()" + * is used for file permission checking and checks against the fsuid.. + */ +#ifdef MACH +#define fsuser() 1 +#else +#define fsuser() (current->fsuid == 0) +#endif + +/* + * Display an IP address in readable format. + */ + +#define NIPQUAD(addr) \ + (((addr) >> 0) & 0xff), \ + (((addr) >> 8) & 0xff), \ + (((addr) >> 16) & 0xff), \ + (((addr) >> 24) & 0xff) + +#endif /* __KERNEL__ */ + +#define SI_LOAD_SHIFT 16 +struct sysinfo { + long uptime; /* Seconds since boot */ + unsigned long loads[3]; /* 1, 5, and 15 minute load averages */ + unsigned long totalram; /* Total usable main memory size */ + unsigned long freeram; /* Available memory size */ + unsigned long sharedram; /* Amount of shared memory */ + unsigned long bufferram; /* Memory used by buffers */ + unsigned long totalswap; /* Total swap space size */ + unsigned long freeswap; /* swap space still available */ + unsigned short procs; /* Number of current processes */ + char _f[22]; /* Pads structure to 64 bytes */ +}; + +#endif diff --git a/linux/dev/include/linux/locks.h b/linux/dev/include/linux/locks.h new file mode 100644 index 0000000..72cf108 --- /dev/null +++ b/linux/dev/include/linux/locks.h @@ -0,0 +1,66 @@ +#ifndef _LINUX_LOCKS_H +#define _LINUX_LOCKS_H + +#ifndef _LINUX_MM_H +#include +#endif +#ifndef _LINUX_PAGEMAP_H +#include +#endif + +/* + * Unlocked, temporary IO buffer_heads gets moved to the reuse_list + * once their page becomes unlocked. + */ +extern struct buffer_head *reuse_list; + +/* + * Buffer cache locking - note that interrupts may only unlock, not + * lock buffers. + */ +extern void __wait_on_buffer(struct buffer_head *); + +extern inline void wait_on_buffer(struct buffer_head * bh) +{ + if (test_bit(BH_Lock, &bh->b_state)) + __wait_on_buffer(bh); +} + +extern inline void lock_buffer(struct buffer_head * bh) +{ + while (set_bit(BH_Lock, &bh->b_state)) + __wait_on_buffer(bh); +} + +void unlock_buffer(struct buffer_head *); + +#ifndef MACH +/* + * super-block locking. Again, interrupts may only unlock + * a super-block (although even this isn't done right now. + * nfs may need it). + */ +extern void __wait_on_super(struct super_block *); + +extern inline void wait_on_super(struct super_block * sb) +{ + if (sb->s_lock) + __wait_on_super(sb); +} + +extern inline void lock_super(struct super_block * sb) +{ + if (sb->s_lock) + __wait_on_super(sb); + sb->s_lock = 1; +} + +extern inline void unlock_super(struct super_block * sb) +{ + sb->s_lock = 0; + wake_up(&sb->s_wait); +} +#endif /* !MACH */ + +#endif /* _LINUX_LOCKS_H */ + diff --git a/linux/dev/include/linux/malloc.h b/linux/dev/include/linux/malloc.h new file mode 100644 index 0000000..084aa05 --- /dev/null +++ b/linux/dev/include/linux/malloc.h @@ -0,0 +1,17 @@ +#ifndef _LINUX_MALLOC_H +#define _LINUX_MALLOC_H + +#include + +#ifndef MACH_INCLUDE +#define kmalloc linux_kmalloc +#define kfree linux_kfree +#define kfree_s linux_kfree_s +#endif + +extern void *linux_kmalloc (unsigned int size, int priority); +extern void linux_kfree (void *obj); + +#define linux_kfree_s(a,b) linux_kfree(a) + +#endif /* _LINUX_MALLOC_H */ diff --git a/linux/dev/include/linux/mm.h b/linux/dev/include/linux/mm.h new file mode 100644 index 0000000..0500e0c --- /dev/null +++ b/linux/dev/include/linux/mm.h @@ -0,0 +1,377 @@ +#ifndef _LINUX_MM_H +#define _LINUX_MM_H + +#include +#include +#include + +#ifdef __KERNEL__ + +#include + +extern unsigned long high_memory; + +#include +#include + +#define VERIFY_READ 0 +#define VERIFY_WRITE 1 + +extern int verify_area(int, const void *, unsigned long); + +/* + * Linux kernel virtual memory manager primitives. + * The idea being to have a "virtual" mm in the same way + * we have a virtual fs - giving a cleaner interface to the + * mm details, and allowing different kinds of memory mappings + * (from shared memory to executable loading to arbitrary + * mmap() functions). + */ + +/* + * This struct defines a memory VMM memory area. There is one of these + * per VM-area/task. A VM area is any part of the process virtual memory + * space that has a special rule for the page-fault handlers (ie a shared + * library, the executable area etc). + */ +struct vm_area_struct { + struct mm_struct * vm_mm; /* VM area parameters */ + unsigned long vm_start; + unsigned long vm_end; + pgprot_t vm_page_prot; + unsigned short vm_flags; +/* AVL tree of VM areas per task, sorted by address */ + short vm_avl_height; + struct vm_area_struct * vm_avl_left; + struct vm_area_struct * vm_avl_right; +/* linked list of VM areas per task, sorted by address */ + struct vm_area_struct * vm_next; +/* for areas with inode, the circular list inode->i_mmap */ +/* for shm areas, the circular list of attaches */ +/* otherwise unused */ + struct vm_area_struct * vm_next_share; + struct vm_area_struct * vm_prev_share; +/* more */ + struct vm_operations_struct * vm_ops; + unsigned long vm_offset; + struct inode * vm_inode; + unsigned long vm_pte; /* shared mem */ +}; + +/* + * vm_flags.. + */ +#define VM_READ 0x0001 /* currently active flags */ +#define VM_WRITE 0x0002 +#define VM_EXEC 0x0004 +#define VM_SHARED 0x0008 + +#define VM_MAYREAD 0x0010 /* limits for mprotect() etc */ +#define VM_MAYWRITE 0x0020 +#define VM_MAYEXEC 0x0040 +#define VM_MAYSHARE 0x0080 + +#define VM_GROWSDOWN 0x0100 /* general info on the segment */ +#define VM_GROWSUP 0x0200 +#define VM_SHM 0x0400 /* shared memory area, don't swap out */ +#define VM_DENYWRITE 0x0800 /* ETXTBSY on write attempts.. */ + +#define VM_EXECUTABLE 0x1000 +#define VM_LOCKED 0x2000 + +#define VM_STACK_FLAGS 0x0177 + +/* + * mapping from the currently active vm_flags protection bits (the + * low four bits) to a page protection mask.. + */ +extern pgprot_t protection_map[16]; + + +/* + * These are the virtual MM functions - opening of an area, closing and + * unmapping it (needed to keep files on disk up-to-date etc), pointer + * to the functions called when a no-page or a wp-page exception occurs. + */ +struct vm_operations_struct { + void (*open)(struct vm_area_struct * area); + void (*close)(struct vm_area_struct * area); + void (*unmap)(struct vm_area_struct *area, unsigned long, size_t); + void (*protect)(struct vm_area_struct *area, unsigned long, size_t, unsigned int newprot); + int (*sync)(struct vm_area_struct *area, unsigned long, size_t, unsigned int flags); + void (*advise)(struct vm_area_struct *area, unsigned long, size_t, unsigned int advise); + unsigned long (*nopage)(struct vm_area_struct * area, unsigned long address, int write_access); + unsigned long (*wppage)(struct vm_area_struct * area, unsigned long address, + unsigned long page); + int (*swapout)(struct vm_area_struct *, unsigned long, pte_t *); + pte_t (*swapin)(struct vm_area_struct *, unsigned long, unsigned long); +}; + +/* + * Try to keep the most commonly accessed fields in single cache lines + * here (16 bytes or greater). This ordering should be particularly + * beneficial on 32-bit processors. + * + * The first line is data used in page cache lookup, the second line + * is used for linear searches (eg. clock algorithm scans). + */ +typedef struct page { + /* these must be first (free area handling) */ + struct page *next; + struct page *prev; + struct inode *inode; + unsigned long offset; + struct page *next_hash; + atomic_t count; + unsigned flags; /* atomic flags, some possibly updated asynchronously */ + unsigned dirty:16, + age:8; + struct wait_queue *wait; + struct page *prev_hash; + struct buffer_head * buffers; + unsigned long swap_unlock_entry; + unsigned long map_nr; /* page->map_nr == page - mem_map */ +} mem_map_t; + +/* Page flag bit values */ +#define PG_locked 0 +#define PG_error 1 +#define PG_referenced 2 +#define PG_uptodate 3 +#define PG_free_after 4 +#define PG_decr_after 5 +#define PG_swap_unlock_after 6 +#define PG_DMA 7 +#define PG_reserved 31 + +/* Make it prettier to test the above... */ +#define PageLocked(page) (test_bit(PG_locked, &(page)->flags)) +#define PageError(page) (test_bit(PG_error, &(page)->flags)) +#define PageReferenced(page) (test_bit(PG_referenced, &(page)->flags)) +#define PageDirty(page) (test_bit(PG_dirty, &(page)->flags)) +#define PageUptodate(page) (test_bit(PG_uptodate, &(page)->flags)) +#define PageFreeAfter(page) (test_bit(PG_free_after, &(page)->flags)) +#define PageDecrAfter(page) (test_bit(PG_decr_after, &(page)->flags)) +#define PageSwapUnlockAfter(page) (test_bit(PG_swap_unlock_after, &(page)->flags)) +#define PageDMA(page) (test_bit(PG_DMA, &(page)->flags)) +#define PageReserved(page) (test_bit(PG_reserved, &(page)->flags)) + +/* + * page->reserved denotes a page which must never be accessed (which + * may not even be present). + * + * page->dma is set for those pages which lie in the range of + * physical addresses capable of carrying DMA transfers. + * + * Multiple processes may "see" the same page. E.g. for untouched + * mappings of /dev/null, all processes see the same page full of + * zeroes, and text pages of executables and shared libraries have + * only one copy in memory, at most, normally. + * + * For the non-reserved pages, page->count denotes a reference count. + * page->count == 0 means the page is free. + * page->count == 1 means the page is used for exactly one purpose + * (e.g. a private data page of one process). + * + * A page may be used for kmalloc() or anyone else who does a + * get_free_page(). In this case the page->count is at least 1, and + * all other fields are unused but should be 0 or NULL. The + * management of this page is the responsibility of the one who uses + * it. + * + * The other pages (we may call them "process pages") are completely + * managed by the Linux memory manager: I/O, buffers, swapping etc. + * The following discussion applies only to them. + * + * A page may belong to an inode's memory mapping. In this case, + * page->inode is the inode, and page->offset is the file offset + * of the page (not necessarily a multiple of PAGE_SIZE). + * + * A page may have buffers allocated to it. In this case, + * page->buffers is a circular list of these buffer heads. Else, + * page->buffers == NULL. + * + * For pages belonging to inodes, the page->count is the number of + * attaches, plus 1 if buffers are allocated to the page. + * + * All pages belonging to an inode make up a doubly linked list + * inode->i_pages, using the fields page->next and page->prev. (These + * fields are also used for freelist management when page->count==0.) + * There is also a hash table mapping (inode,offset) to the page + * in memory if present. The lists for this hash table use the fields + * page->next_hash and page->prev_hash. + * + * All process pages can do I/O: + * - inode pages may need to be read from disk, + * - inode pages which have been modified and are MAP_SHARED may need + * to be written to disk, + * - private pages which have been modified may need to be swapped out + * to swap space and (later) to be read back into memory. + * During disk I/O, page->locked is true. This bit is set before I/O + * and reset when I/O completes. page->wait is a wait queue of all + * tasks waiting for the I/O on this page to complete. + * page->uptodate tells whether the page's contents is valid. + * When a read completes, the page becomes uptodate, unless a disk I/O + * error happened. + * When a write completes, and page->free_after is true, the page is + * freed without any further delay. + * + * For choosing which pages to swap out, inode pages carry a + * page->referenced bit, which is set any time the system accesses + * that page through the (inode,offset) hash table. + * There is also the page->age counter, which implements a linear + * decay (why not an exponential decay?), see swapctl.h. + */ + +extern mem_map_t * mem_map; + +/* + * This is timing-critical - most of the time in getting a new page + * goes to clearing the page. If you want a page without the clearing + * overhead, just use __get_free_page() directly.. + */ +#define __get_free_page(priority) __get_free_pages((priority),0,0) +#define __get_dma_pages(priority, order) __get_free_pages((priority),(order),1) +extern unsigned long __get_free_pages(int priority, unsigned long gfporder, int dma); + +extern inline unsigned long get_free_page(int priority) +{ + unsigned long page; + + page = __get_free_page(priority); + if (page) + memset((void *) page, 0, PAGE_SIZE); + return page; +} + +/* memory.c & swap.c*/ + +#define free_page(addr) free_pages((addr),0) +extern void free_pages(unsigned long addr, unsigned long order); +extern void __free_page(struct page *); + +extern void show_free_areas(void); +extern unsigned long put_dirty_page(struct task_struct * tsk,unsigned long page, + unsigned long address); + +extern void free_page_tables(struct mm_struct * mm); +extern void clear_page_tables(struct task_struct * tsk); +extern int new_page_tables(struct task_struct * tsk); +extern int copy_page_tables(struct task_struct * to); + +extern int zap_page_range(struct mm_struct *mm, unsigned long address, unsigned long size); +extern int copy_page_range(struct mm_struct *dst, struct mm_struct *src, struct vm_area_struct *vma); +extern int remap_page_range(unsigned long from, unsigned long to, unsigned long size, pgprot_t prot); +extern int zeromap_page_range(unsigned long from, unsigned long size, pgprot_t prot); + +extern void vmtruncate(struct inode * inode, unsigned long offset); +extern void handle_mm_fault(struct vm_area_struct *vma, unsigned long address, int write_access); +extern void do_wp_page(struct task_struct * tsk, struct vm_area_struct * vma, unsigned long address, int write_access); +extern void do_no_page(struct task_struct * tsk, struct vm_area_struct * vma, unsigned long address, int write_access); + +extern unsigned long paging_init(unsigned long start_mem, unsigned long end_mem); +extern void mem_init(unsigned long start_mem, unsigned long end_mem); +extern void show_mem(void); +extern void oom(struct task_struct * tsk); +extern void si_meminfo(struct sysinfo * val); + +/* vmalloc.c */ + +extern void * vmalloc(unsigned long size); +extern void * vremap(unsigned long offset, unsigned long size); +extern void vfree(void * addr); +extern int vread(char *buf, char *addr, int count); + +/* mmap.c */ +extern unsigned long do_mmap(struct file * file, unsigned long addr, unsigned long len, + unsigned long prot, unsigned long flags, unsigned long off); +extern void merge_segments(struct mm_struct *, unsigned long, unsigned long); +extern void insert_vm_struct(struct mm_struct *, struct vm_area_struct *); +extern void remove_shared_vm_struct(struct vm_area_struct *); +extern void build_mmap_avl(struct mm_struct *); +extern void exit_mmap(struct mm_struct *); +extern int do_munmap(unsigned long, size_t); +extern unsigned long get_unmapped_area(unsigned long, unsigned long); + +/* filemap.c */ +extern unsigned long page_unuse(unsigned long); +extern int shrink_mmap(int, int, int); +extern void truncate_inode_pages(struct inode *, unsigned long); + +#define GFP_BUFFER 0x00 +#define GFP_ATOMIC 0x01 +#define GFP_USER 0x02 +#define GFP_KERNEL 0x03 +#define GFP_NOBUFFER 0x04 +#define GFP_NFS 0x05 +#define GFP_IO 0x06 + +/* Flag - indicates that the buffer will be suitable for DMA. Ignored on some + platforms, used as appropriate on others */ + +#define GFP_DMA 0x80 + +#define GFP_LEVEL_MASK 0xf + +#ifndef MACH +/* vma is the first one with address < vma->vm_end, + * and even address < vma->vm_start. Have to extend vma. */ +static inline int expand_stack(struct vm_area_struct * vma, unsigned long address) +{ + unsigned long grow; + + address &= PAGE_MASK; + grow = vma->vm_start - address; + if (vma->vm_end - address + > (unsigned long) current->rlim[RLIMIT_STACK].rlim_cur || + (vma->vm_mm->total_vm << PAGE_SHIFT) + grow + > (unsigned long) current->rlim[RLIMIT_AS].rlim_cur) + return -ENOMEM; + vma->vm_start = address; + vma->vm_offset -= grow; + vma->vm_mm->total_vm += grow >> PAGE_SHIFT; + if (vma->vm_flags & VM_LOCKED) + vma->vm_mm->locked_vm += grow >> PAGE_SHIFT; + return 0; +} + +#define avl_empty (struct vm_area_struct *) NULL + +/* Look up the first VMA which satisfies addr < vm_end, NULL if none. */ +static inline struct vm_area_struct * find_vma(struct mm_struct * mm, unsigned long addr) +{ + struct vm_area_struct * result = NULL; + + if (mm) { + struct vm_area_struct * tree = mm->mmap_avl; + for (;;) { + if (tree == avl_empty) + break; + if (tree->vm_end > addr) { + result = tree; + if (tree->vm_start <= addr) + break; + tree = tree->vm_avl_left; + } else + tree = tree->vm_avl_right; + } + } + return result; +} + +/* Look up the first VMA which intersects the interval start_addr..end_addr-1, + NULL if none. Assume start_addr < end_addr. */ +static inline struct vm_area_struct * find_vma_intersection(struct mm_struct * mm, unsigned long start_addr, unsigned long end_addr) +{ + struct vm_area_struct * vma; + + vma = find_vma(mm,start_addr); + if (vma && end_addr <= vma->vm_start) + vma = NULL; + return vma; +} +#endif /* !MACH */ + +#endif /* __KERNEL__ */ + +#endif diff --git a/linux/dev/include/linux/netdevice.h b/linux/dev/include/linux/netdevice.h new file mode 100644 index 0000000..ff25df1 --- /dev/null +++ b/linux/dev/include/linux/netdevice.h @@ -0,0 +1,338 @@ +/* + * INET An implementation of the TCP/IP protocol suite for the LINUX + * operating system. INET is implemented using the BSD Socket + * interface as the means of communication with the user level. + * + * Definitions for the Interfaces handler. + * + * Version: @(#)dev.h 1.0.11 07/31/96 + * + * Authors: Ross Biro, + * Fred N. van Kempen, + * Corey Minyard + * Donald J. Becker, + * Alan Cox, + * Bjorn Ekwall. + * Lawrence V. Stefani, + * + * This program is free software; you can redistribute it and/or + * modify it under the terms of the GNU General Public License + * as published by the Free Software Foundation; either version + * 2 of the License, or (at your option) any later version. + * + * Moved to /usr/include/linux for NET3 + * Added extern for fddi_setup() + */ +#ifndef _LINUX_NETDEVICE_H +#define _LINUX_NETDEVICE_H + +#include +#include +#include + +/* for future expansion when we will have different priorities. */ +#define DEV_NUMBUFFS 3 +#define MAX_ADDR_LEN 7 +#ifndef CONFIG_AX25 +#ifndef CONFIG_TR +#if !defined(CONFIG_NET_IPIP) && !defined(CONFIG_NET_IPIP_MODULE) +#define MAX_HEADER 32 /* We really need about 18 worst case .. so 32 is aligned */ +#else +#define MAX_HEADER 80 /* We need to allow for having tunnel headers */ +#endif /* IPIP */ +#else +#define MAX_HEADER 48 /* Token Ring header needs 40 bytes ... 48 is aligned */ +#endif /* TR */ +#else +#define MAX_HEADER 96 /* AX.25 + NetROM */ +#endif /* AX25 */ + +#define IS_MYADDR 1 /* address is (one of) our own */ +#define IS_LOOPBACK 2 /* address is for LOOPBACK */ +#define IS_BROADCAST 3 /* address is a valid broadcast */ +#define IS_INVBCAST 4 /* Wrong netmask bcast not for us (unused)*/ +#define IS_MULTICAST 5 /* Multicast IP address */ + +#ifdef __KERNEL__ + +#include + +/* + * We tag multicasts with these structures. + */ + +struct dev_mc_list +{ + struct dev_mc_list *next; + char dmi_addr[MAX_ADDR_LEN]; + unsigned short dmi_addrlen; + unsigned short dmi_users; +}; + +struct hh_cache +{ + struct hh_cache *hh_next; + void *hh_arp; /* Opaque pointer, used by + * any address resolution module, + * not only ARP. + */ + int hh_refcnt; /* number of users */ + unsigned short hh_type; /* protocol identifier, f.e ETH_P_IP */ + char hh_uptodate; /* hh_data is valid */ + char hh_data[16]; /* cached hardware header */ +}; + +/* + * The DEVICE structure. + * Actually, this whole structure is a big mistake. It mixes I/O + * data with strictly "high-level" data, and it has to know about + * almost every data structure used in the INET module. + */ + +#ifdef MACH + +#ifndef MACH_INCLUDE +#define device linux_device +#endif + +struct linux_device + +#else + +struct device + +#endif +{ + + /* + * This is the first field of the "visible" part of this structure + * (i.e. as seen by users in the "Space.c" file). It is the name + * the interface. + */ + char *name; + + /* I/O specific fields - FIXME: Merge these and struct ifmap into one */ + unsigned long rmem_end; /* shmem "recv" end */ + unsigned long rmem_start; /* shmem "recv" start */ + unsigned long mem_end; /* shared mem end */ + unsigned long mem_start; /* shared mem start */ + unsigned long base_addr; /* device I/O address */ + unsigned char irq; /* device IRQ number */ + + /* Low-level status flags. */ + volatile unsigned char start, /* start an operation */ + interrupt; /* interrupt arrived */ + unsigned long tbusy; /* transmitter busy must be long for bitops */ + + struct linux_device *next; + + /* The device initialization function. Called only once. */ + int (*init)(struct linux_device *dev); + + /* Some hardware also needs these fields, but they are not part of the + usual set specified in Space.c. */ + unsigned char if_port; /* Selectable AUI, TP,..*/ + unsigned char dma; /* DMA channel */ + + struct enet_statistics* (*get_stats)(struct linux_device *dev); + + /* + * This marks the end of the "visible" part of the structure. All + * fields hereafter are internal to the system, and may change at + * will (read: may be cleaned up at will). + */ + + /* These may be needed for future network-power-down code. */ + unsigned long trans_start; /* Time (in jiffies) of last Tx */ + unsigned long last_rx; /* Time of last Rx */ + + unsigned short flags; /* interface flags (a la BSD) */ + unsigned short family; /* address family ID (AF_INET) */ + unsigned short metric; /* routing metric (not used) */ + unsigned short mtu; /* interface MTU value */ + unsigned short type; /* interface hardware type */ + unsigned short hard_header_len; /* hardware hdr length */ + void *priv; /* pointer to private data */ + + /* Interface address info. */ + unsigned char broadcast[MAX_ADDR_LEN]; /* hw bcast add */ + unsigned char pad; /* make dev_addr aligned to 8 bytes */ + unsigned char dev_addr[MAX_ADDR_LEN]; /* hw address */ + unsigned char addr_len; /* hardware address length */ + unsigned long pa_addr; /* protocol address */ + unsigned long pa_brdaddr; /* protocol broadcast addr */ + unsigned long pa_dstaddr; /* protocol P-P other side addr */ + unsigned long pa_mask; /* protocol netmask */ + unsigned short pa_alen; /* protocol address length */ + + struct dev_mc_list *mc_list; /* Multicast mac addresses */ + int mc_count; /* Number of installed mcasts */ + + struct ip_mc_list *ip_mc_list; /* IP multicast filter chain */ + __u32 tx_queue_len; /* Max frames per queue allowed */ + + /* For load balancing driver pair support */ + + unsigned long pkt_queue; /* Packets queued */ + struct linux_device *slave; /* Slave device */ + struct net_alias_info *alias_info; /* main dev alias info */ + struct net_alias *my_alias; /* alias devs */ + + /* Pointer to the interface buffers. */ + struct sk_buff_head buffs[DEV_NUMBUFFS]; + + /* Pointers to interface service routines. */ + int (*open)(struct linux_device *dev); + int (*stop)(struct linux_device *dev); + int (*hard_start_xmit) (struct sk_buff *skb, + struct linux_device *dev); + int (*hard_header) (struct sk_buff *skb, + struct linux_device *dev, + unsigned short type, + void *daddr, + void *saddr, + unsigned len); + int (*rebuild_header)(void *eth, struct linux_device *dev, + unsigned long raddr, struct sk_buff *skb); +#define HAVE_MULTICAST + void (*set_multicast_list)(struct linux_device *dev); +#define HAVE_SET_MAC_ADDR + int (*set_mac_address)(struct linux_device *dev, void *addr); +#define HAVE_PRIVATE_IOCTL + int (*do_ioctl)(struct linux_device *dev, struct ifreq *ifr, int cmd); +#define HAVE_SET_CONFIG + int (*set_config)(struct linux_device *dev, struct ifmap *map); +#define HAVE_HEADER_CACHE + void (*header_cache_bind)(struct hh_cache **hhp, struct linux_device *dev, unsigned short htype, __u32 daddr); + void (*header_cache_update)(struct hh_cache *hh, struct linux_device *dev, unsigned char * haddr); +#define HAVE_CHANGE_MTU + int (*change_mtu)(struct linux_device *dev, int new_mtu); + + struct iw_statistics* (*get_wireless_stats)(struct linux_device *dev); + +#ifdef MACH + +#ifdef MACH_INCLUDE + struct net_data *net_data; +#else + void *net_data; +#endif + +#endif +}; + + +struct packet_type { + unsigned short type; /* This is really htons(ether_type). */ + struct linux_device * dev; + int (*func) (struct sk_buff *, struct linux_device *, + struct packet_type *); + void *data; + struct packet_type *next; +}; + + +#include +#include + +/* Used by dev_rint */ +#define IN_SKBUFF 1 + +extern volatile unsigned long in_bh; + +extern struct linux_device loopback_dev; +extern struct linux_device *dev_base; +extern struct packet_type *ptype_base[16]; + + +extern int ip_addr_match(unsigned long addr1, unsigned long addr2); +extern int ip_chk_addr(unsigned long addr); +extern struct linux_device *ip_dev_bynet(unsigned long daddr, unsigned long mask); +extern unsigned long ip_my_addr(void); +extern unsigned long ip_get_mask(unsigned long addr); +extern struct linux_device *ip_dev_find(unsigned long addr); +extern struct linux_device *dev_getbytype(unsigned short type); + +extern void dev_add_pack(struct packet_type *pt); +extern void dev_remove_pack(struct packet_type *pt); +extern struct linux_device *dev_get(const char *name); +extern int dev_open(struct linux_device *dev); +extern int dev_close(struct linux_device *dev); +extern void dev_queue_xmit(struct sk_buff *skb, struct linux_device *dev, + int pri); + +#define HAVE_NETIF_RX 1 +extern void netif_rx(struct sk_buff *skb); +extern void net_bh(void); + +#ifdef MACH +#define dev_tint(dev) +#else +extern void dev_tint(struct linux_device *dev); +#endif + +extern int dev_get_info(char *buffer, char **start, off_t offset, int length, int dummy); +extern int dev_ioctl(unsigned int cmd, void *); + +extern void dev_init(void); + +/* Locking protection for page faults during outputs to devices unloaded during the fault */ + +extern int dev_lockct; + +/* + * These two don't currently need to be interrupt-safe + * but they may do soon. Do it properly anyway. + */ + +extern __inline__ void dev_lock_list(void) +{ + unsigned long flags; + save_flags(flags); + cli(); + dev_lockct++; + restore_flags(flags); +} + +extern __inline__ void dev_unlock_list(void) +{ + unsigned long flags; + save_flags(flags); + cli(); + dev_lockct--; + restore_flags(flags); +} + +/* + * This almost never occurs, isn't in performance critical paths + * and we can thus be relaxed about it + */ + +extern __inline__ void dev_lock_wait(void) +{ + while(dev_lockct) + schedule(); +} + + +/* These functions live elsewhere (drivers/net/net_init.c, but related) */ + +extern void ether_setup(struct linux_device *dev); +extern void tr_setup(struct linux_device *dev); +extern void fddi_setup(struct linux_device *dev); +extern int ether_config(struct linux_device *dev, struct ifmap *map); +/* Support for loadable net-drivers */ +extern int register_netdev(struct linux_device *dev); +extern void unregister_netdev(struct linux_device *dev); +extern int register_netdevice_notifier(struct notifier_block *nb); +extern int unregister_netdevice_notifier(struct notifier_block *nb); +/* Functions used for multicast support */ +extern void dev_mc_upload(struct linux_device *dev); +extern void dev_mc_delete(struct linux_device *dev, void *addr, int alen, int all); +extern void dev_mc_add(struct linux_device *dev, void *addr, int alen, int newonly); +extern void dev_mc_discard(struct linux_device *dev); +/* This is the wrong place but it'll do for the moment */ +extern void ip_mc_allhost(struct linux_device *dev); +#endif /* __KERNEL__ */ + +#endif /* _LINUX_DEV_H */ diff --git a/linux/dev/include/linux/nfs.h b/linux/dev/include/linux/nfs.h new file mode 100644 index 0000000..ef37aa3 --- /dev/null +++ b/linux/dev/include/linux/nfs.h @@ -0,0 +1,175 @@ +#ifndef _LINUX_NFS_H +#define _LINUX_NFS_H + +#ifndef MACH_INCLUDE + +#define NFS_PORT 2049 +#define NFS_MAXDATA 8192 +#define NFS_MAXPATHLEN 1024 +#define NFS_MAXNAMLEN 255 +#define NFS_MAXGROUPS 16 +#define NFS_FHSIZE 32 +#define NFS_COOKIESIZE 4 +#define NFS_FIFO_DEV (-1) +#define NFSMODE_FMT 0170000 +#define NFSMODE_DIR 0040000 +#define NFSMODE_CHR 0020000 +#define NFSMODE_BLK 0060000 +#define NFSMODE_REG 0100000 +#define NFSMODE_LNK 0120000 +#define NFSMODE_SOCK 0140000 +#define NFSMODE_FIFO 0010000 + +#ifdef __KERNEL__ /* user programs should get these from the rpc header files */ + +#define RPC_VERSION 2 + +enum rpc_auth_flavor { + RPC_AUTH_NULL = 0, + RPC_AUTH_UNIX = 1, + RPC_AUTH_SHORT = 2 +}; + +enum rpc_msg_type { + RPC_CALL = 0, + RPC_REPLY = 1 +}; + +enum rpc_reply_stat { + RPC_MSG_ACCEPTED = 0, + RPC_MSG_DENIED = 1 +}; + +enum rpc_accept_stat { + RPC_SUCCESS = 0, + RPC_PROG_UNAVAIL = 1, + RPC_PROG_MISMATCH = 2, + RPC_PROC_UNAVAIL = 3, + RPC_GARBAGE_ARGS = 4 +}; + +enum rpc_reject_stat { + RPC_MISMATCH = 0, + RPC_AUTH_ERROR = 1 +}; + +enum rpc_auth_stat { + RPC_AUTH_BADCRED = 1, + RPC_AUTH_REJECTEDCRED = 2, + RPC_AUTH_BADVERF = 3, + RPC_AUTH_REJECTEDVERF = 4, + RPC_AUTH_TOOWEAK = 5 +}; + +#endif /* __KERNEL__ */ + +enum nfs_stat { + NFS_OK = 0, + NFSERR_PERM = 1, + NFSERR_NOENT = 2, + NFSERR_IO = 5, + NFSERR_NXIO = 6, + NFSERR_EAGAIN = 11, + NFSERR_ACCES = 13, + NFSERR_EXIST = 17, + NFSERR_XDEV = 18, + NFSERR_NODEV = 19, + NFSERR_NOTDIR = 20, + NFSERR_ISDIR = 21, + NFSERR_INVAL = 22, /* that Sun forgot */ + NFSERR_FBIG = 27, + NFSERR_NOSPC = 28, + NFSERR_ROFS = 30, + NFSERR_NAMETOOLONG = 63, + NFSERR_NOTEMPTY = 66, + NFSERR_DQUOT = 69, + NFSERR_STALE = 70, + NFSERR_WFLUSH = 99 +}; + +enum nfs_ftype { + NFNON = 0, + NFREG = 1, + NFDIR = 2, + NFBLK = 3, + NFCHR = 4, + NFLNK = 5, + NFSOCK = 6, + NFBAD = 7, + NFFIFO = 8 +}; + +#define NFS_PROGRAM 100003 +#define NFS_VERSION 2 +#define NFSPROC_NULL 0 +#define NFSPROC_GETATTR 1 +#define NFSPROC_SETATTR 2 +#define NFSPROC_ROOT 3 +#define NFSPROC_LOOKUP 4 +#define NFSPROC_READLINK 5 +#define NFSPROC_READ 6 +#define NFSPROC_WRITECACHE 7 +#define NFSPROC_WRITE 8 +#define NFSPROC_CREATE 9 +#define NFSPROC_REMOVE 10 +#define NFSPROC_RENAME 11 +#define NFSPROC_LINK 12 +#define NFSPROC_SYMLINK 13 +#define NFSPROC_MKDIR 14 +#define NFSPROC_RMDIR 15 +#define NFSPROC_READDIR 16 +#define NFSPROC_STATFS 17 + +struct nfs_fh { + char data[NFS_FHSIZE]; +}; + +struct nfs_time { + u_int seconds; + u_int useconds; +}; + +struct nfs_fattr { + enum nfs_ftype type; + u_int mode; + u_int nlink; + u_int uid; + u_int gid; + u_int size; + u_int blocksize; + u_int rdev; + u_int blocks; + u_int fsid; + u_int fileid; + struct nfs_time atime; + struct nfs_time mtime; + struct nfs_time ctime; +}; + +struct nfs_sattr { + u_int mode; + u_int uid; + u_int gid; + u_int size; + struct nfs_time atime; + struct nfs_time mtime; +}; + +struct nfs_entry { + u_int fileid; + char *name; + int cookie; + int eof; +}; + +struct nfs_fsinfo { + u_int tsize; + u_int bsize; + u_int blocks; + u_int bfree; + u_int bavail; +}; + +#endif + +#endif diff --git a/linux/dev/include/linux/notifier.h b/linux/dev/include/linux/notifier.h new file mode 100644 index 0000000..eede20f --- /dev/null +++ b/linux/dev/include/linux/notifier.h @@ -0,0 +1,100 @@ +/* + * Routines to manage notifier chains for passing status changes to any + * interested routines. We need this instead of hard coded call lists so + * that modules can poke their nose into the innards. The network devices + * needed them so here they are for the rest of you. + * + * Alan Cox + */ + +#ifndef _LINUX_NOTIFIER_H +#define _LINUX_NOTIFIER_H +#include + +struct notifier_block +{ + int (*notifier_call)(struct notifier_block *this, unsigned long, void *); + struct notifier_block *next; + int priority; +}; + + +#ifdef __KERNEL__ + +#define NOTIFY_DONE 0x0000 /* Don't care */ +#define NOTIFY_OK 0x0001 /* Suits me */ +#define NOTIFY_STOP_MASK 0x8000 /* Don't call further */ +#define NOTIFY_BAD (NOTIFY_STOP_MASK|0x0002) /* Bad/Veto action */ + +extern __inline__ int notifier_chain_register(struct notifier_block **list, struct notifier_block *n) +{ + while(*list) + { + if(n->priority > (*list)->priority) + break; + list= &((*list)->next); + } + n->next = *list; + *list=n; + return 0; +} + +/* + * Warning to any non GPL module writers out there.. these functions are + * GPL'd + */ + +extern __inline__ int notifier_chain_unregister(struct notifier_block **nl, struct notifier_block *n) +{ + while((*nl)!=NULL) + { + if((*nl)==n) + { + *nl=n->next; + return 0; + } + nl=&((*nl)->next); + } +#ifdef MACH_INCLUDE + return -LINUX_ENOENT; +#else + return -ENOENT; +#endif +} + +/* + * This is one of these things that is generally shorter inline + */ + +extern __inline__ int notifier_call_chain(struct notifier_block **n, unsigned long val, void *v) +{ + int ret=NOTIFY_DONE; + struct notifier_block *nb = *n; + while(nb) + { + ret=nb->notifier_call(nb,val,v); + if(ret&NOTIFY_STOP_MASK) + return ret; + nb=nb->next; + } + return ret; +} + + +/* + * Declared notifiers so far. I can imagine quite a few more chains + * over time (eg laptop power reset chains, reboot chain (to clean + * device units up), device [un]mount chain, module load/unload chain, + * low memory chain, screenblank chain (for plug in modular screenblankers) + * VC switch chains (for loadable kernel svgalib VC switch helpers) etc... + */ + +/* netdevice notifier chain */ +#define NETDEV_UP 0x0001 /* For now you can't veto a device up/down */ +#define NETDEV_DOWN 0x0002 +#define NETDEV_REBOOT 0x0003 /* Tell a protocol stack a network interface + detected a hardware crash and restarted + - we can use this eg to kick tcp sessions + once done */ +#endif +#endif diff --git a/linux/dev/include/linux/pagemap.h b/linux/dev/include/linux/pagemap.h new file mode 100644 index 0000000..6e21f3d --- /dev/null +++ b/linux/dev/include/linux/pagemap.h @@ -0,0 +1,150 @@ +#ifndef _LINUX_PAGEMAP_H +#define _LINUX_PAGEMAP_H + +#include + +/* + * Page-mapping primitive inline functions + * + * Copyright 1995 Linus Torvalds + */ + +#ifndef MACH + +#include +#include +#include + +static inline unsigned long page_address(struct page * page) +{ + return PAGE_OFFSET + PAGE_SIZE * page->map_nr; +} + +#define PAGE_HASH_BITS 11 +#define PAGE_HASH_SIZE (1 << PAGE_HASH_BITS) + +#define PAGE_AGE_VALUE ((PAGE_INITIAL_AGE)+(PAGE_ADVANCE)) + +extern unsigned long page_cache_size; /* # of pages currently in the hash table */ +extern struct page * page_hash_table[PAGE_HASH_SIZE]; + +/* + * We use a power-of-two hash table to avoid a modulus, + * and get a reasonable hash by knowing roughly how the + * inode pointer and offsets are distributed (ie, we + * roughly know which bits are "significant") + */ +static inline unsigned long _page_hashfn(struct inode * inode, unsigned long offset) +{ +#define i (((unsigned long) inode)/(sizeof(struct inode) & ~ (sizeof(struct inode) - 1))) +#define o (offset >> PAGE_SHIFT) +#define s(x) ((x)+((x)>>PAGE_HASH_BITS)) + return s(i+o) & (PAGE_HASH_SIZE-1); +#undef i +#undef o +#undef s +} + +#define page_hash(inode,offset) (page_hash_table+_page_hashfn(inode,offset)) + +static inline struct page * __find_page(struct inode * inode, unsigned long offset, struct page *page) +{ + goto inside; + for (;;) { + page = page->next_hash; +inside: + if (!page) + goto not_found; + if (page->inode != inode) + continue; + if (page->offset == offset) + break; + } + /* Found the page. */ + atomic_inc(&page->count); + set_bit(PG_referenced, &page->flags); +not_found: + return page; +} + +static inline struct page *find_page(struct inode * inode, unsigned long offset) +{ + return __find_page(inode, offset, *page_hash(inode, offset)); +} + +static inline void remove_page_from_hash_queue(struct page * page) +{ + struct page **p; + struct page *next_hash, *prev_hash; + + next_hash = page->next_hash; + prev_hash = page->prev_hash; + page->next_hash = NULL; + page->prev_hash = NULL; + if (next_hash) + next_hash->prev_hash = prev_hash; + if (prev_hash) + prev_hash->next_hash = next_hash; + p = page_hash(page->inode,page->offset); + if (*p == page) + *p = next_hash; + page_cache_size--; +} + +static inline void __add_page_to_hash_queue(struct page * page, struct page **p) +{ + page_cache_size++; + set_bit(PG_referenced, &page->flags); + page->age = PAGE_AGE_VALUE; + page->prev_hash = NULL; + if ((page->next_hash = *p) != NULL) + page->next_hash->prev_hash = page; + *p = page; +} + +static inline void add_page_to_hash_queue(struct page * page, struct inode * inode, unsigned long offset) +{ + __add_page_to_hash_queue(page, page_hash(inode,offset)); +} + + +static inline void remove_page_from_inode_queue(struct page * page) +{ + struct inode * inode = page->inode; + + page->inode = NULL; + inode->i_nrpages--; + if (inode->i_pages == page) + inode->i_pages = page->next; + if (page->next) + page->next->prev = page->prev; + if (page->prev) + page->prev->next = page->next; + page->next = NULL; + page->prev = NULL; +} + +static inline void add_page_to_inode_queue(struct inode * inode, struct page * page) +{ + struct page **p = &inode->i_pages; + + inode->i_nrpages++; + page->inode = inode; + page->prev = NULL; + if ((page->next = *p) != NULL) + page->next->prev = page; + *p = page; +} + +extern void __wait_on_page(struct page *); +static inline void wait_on_page(struct page * page) +{ + if (PageLocked(page)) + __wait_on_page(page); +} + +extern void update_vm_cache(struct inode *, unsigned long, const char *, int); + +#endif /* !MACH */ + +#endif diff --git a/linux/dev/include/linux/proc_fs.h b/linux/dev/include/linux/proc_fs.h new file mode 100644 index 0000000..8ce0bb2 --- /dev/null +++ b/linux/dev/include/linux/proc_fs.h @@ -0,0 +1,292 @@ +#ifndef _LINUX_PROC_FS_H +#define _LINUX_PROC_FS_H + +#include +#include + +/* + * The proc filesystem constants/structures + */ + +/* + * We always define these enumerators + */ + +enum root_directory_inos { + PROC_ROOT_INO = 1, + PROC_LOADAVG, + PROC_UPTIME, + PROC_MEMINFO, + PROC_KMSG, + PROC_VERSION, + PROC_CPUINFO, + PROC_PCI, + PROC_SELF, /* will change inode # */ + PROC_NET, + PROC_SCSI, + PROC_MALLOC, + PROC_KCORE, + PROC_MODULES, + PROC_STAT, + PROC_DEVICES, + PROC_INTERRUPTS, + PROC_FILESYSTEMS, + PROC_KSYMS, + PROC_DMA, + PROC_IOPORTS, +#ifdef __SMP_PROF__ + PROC_SMP_PROF, +#endif + PROC_PROFILE, /* whether enabled or not */ + PROC_CMDLINE, + PROC_SYS, + PROC_MTAB, + PROC_MD, + PROC_RTC, + PROC_LOCKS +}; + +enum pid_directory_inos { + PROC_PID_INO = 2, + PROC_PID_STATUS, + PROC_PID_MEM, + PROC_PID_CWD, + PROC_PID_ROOT, + PROC_PID_EXE, + PROC_PID_FD, + PROC_PID_ENVIRON, + PROC_PID_CMDLINE, + PROC_PID_STAT, + PROC_PID_STATM, + PROC_PID_MAPS +}; + +enum pid_subdirectory_inos { + PROC_PID_FD_DIR = 1 +}; + +enum net_directory_inos { + PROC_NET_UNIX = 128, + PROC_NET_ARP, + PROC_NET_ROUTE, + PROC_NET_DEV, + PROC_NET_RAW, + PROC_NET_TCP, + PROC_NET_UDP, + PROC_NET_SNMP, + PROC_NET_RARP, + PROC_NET_IGMP, + PROC_NET_IPMR_VIF, + PROC_NET_IPMR_MFC, + PROC_NET_IPFWFWD, + PROC_NET_IPFWIN, + PROC_NET_IPFWOUT, + PROC_NET_IPACCT, + PROC_NET_IPMSQHST, + PROC_NET_WIRELESS, + PROC_NET_IPX_INTERFACE, + PROC_NET_IPX_ROUTE, + PROC_NET_IPX, + PROC_NET_ATALK, + PROC_NET_AT_ROUTE, + PROC_NET_ATIF, + PROC_NET_AX25_ROUTE, + PROC_NET_AX25, + PROC_NET_AX25_CALLS, + PROC_NET_NR_NODES, + PROC_NET_NR_NEIGH, + PROC_NET_NR, + PROC_NET_SOCKSTAT, + PROC_NET_RTCACHE, + PROC_NET_AX25_BPQETHER, + PROC_NET_ALIAS_TYPES, + PROC_NET_ALIASES, + PROC_NET_IP_MASQ_APP, + PROC_NET_STRIP_STATUS, + PROC_NET_STRIP_TRACE, + PROC_NET_IPAUTOFW, + PROC_NET_RS_NODES, + PROC_NET_RS_NEIGH, + PROC_NET_RS_ROUTES, + PROC_NET_RS, + PROC_NET_Z8530, + PROC_NET_LAST +}; + +enum scsi_directory_inos { + PROC_SCSI_SCSI = 256, + PROC_SCSI_ADVANSYS, + PROC_SCSI_EATA, + PROC_SCSI_EATA_PIO, + PROC_SCSI_AHA152X, + PROC_SCSI_AHA1542, + PROC_SCSI_AHA1740, + PROC_SCSI_AIC7XXX, + PROC_SCSI_BUSLOGIC, + PROC_SCSI_U14_34F, + PROC_SCSI_FDOMAIN, + PROC_SCSI_GENERIC_NCR5380, + PROC_SCSI_IN2000, + PROC_SCSI_PAS16, + PROC_SCSI_QLOGICFAS, + PROC_SCSI_QLOGICISP, + PROC_SCSI_SEAGATE, + PROC_SCSI_T128, + PROC_SCSI_DC390WUF, + PROC_SCSI_DC390T, + PROC_SCSI_NCR53C7xx, + PROC_SCSI_NCR53C8XX, + PROC_SCSI_ULTRASTOR, + PROC_SCSI_7000FASST, + PROC_SCSI_EATA2X, + PROC_SCSI_AM53C974, + PROC_SCSI_SSC, + PROC_SCSI_NCR53C406A, + PROC_SCSI_PPA, + PROC_SCSI_ESP, + PROC_SCSI_A3000, + PROC_SCSI_A2091, + PROC_SCSI_GVP11, + PROC_SCSI_ATARI, + PROC_SCSI_GDTH, + PROC_SCSI_IDESCSI, + PROC_SCSI_SCSI_DEBUG, + PROC_SCSI_NOT_PRESENT, + PROC_SCSI_FILE, /* I'm assuming here that we */ + PROC_SCSI_LAST = (PROC_SCSI_FILE + 16) /* won't ever see more than */ +}; /* 16 HBAs in one machine */ + +/* Finally, the dynamically allocatable proc entries are reserved: */ + +#define PROC_DYNAMIC_FIRST 4096 +#define PROC_NDYNAMIC 4096 + +#define PROC_SUPER_MAGIC 0x9fa0 + +/* + * This is not completely implemented yet. The idea is to + * create a in-memory tree (like the actual /proc filesystem + * tree) of these proc_dir_entries, so that we can dynamically + * add new files to /proc. + * + * The "next" pointer creates a linked list of one /proc directory, + * while parent/subdir create the directory structure (every + * /proc file has a parent, but "subdir" is NULL for all + * non-directory entries). + * + * "get_info" is called at "read", while "fill_inode" is used to + * fill in file type/protection/owner information specific to the + * particular /proc file. + */ +struct proc_dir_entry { + unsigned short low_ino; + unsigned short namelen; + const char *name; + mode_t mode; + nlink_t nlink; + uid_t uid; + gid_t gid; + unsigned long size; + struct inode_operations * ops; + int (*get_info)(char *, char **, off_t, int, int); + void (*fill_inode)(struct inode *); + struct proc_dir_entry *next, *parent, *subdir; + void *data; +}; + +extern int (* dispatch_scsi_info_ptr) (int ino, char *buffer, char **start, + off_t offset, int length, int inout); + +extern struct proc_dir_entry proc_root; +extern struct proc_dir_entry proc_net; +extern struct proc_dir_entry proc_scsi; +extern struct proc_dir_entry proc_sys; +extern struct proc_dir_entry proc_pid; +extern struct proc_dir_entry proc_pid_fd; + +extern struct inode_operations proc_scsi_inode_operations; + +extern void proc_root_init(void); +extern void proc_base_init(void); +extern void proc_net_init(void); + +extern int proc_register(struct proc_dir_entry *, struct proc_dir_entry *); +extern int proc_register_dynamic(struct proc_dir_entry *, + struct proc_dir_entry *); +extern int proc_unregister(struct proc_dir_entry *, int); + +static inline int proc_net_register(struct proc_dir_entry * x) +{ + return proc_register(&proc_net, x); +} + +static inline int proc_net_unregister(int x) +{ + return proc_unregister(&proc_net, x); +} + +static inline int proc_scsi_register(struct proc_dir_entry *driver, + struct proc_dir_entry *x) +{ + x->ops = &proc_scsi_inode_operations; + if(x->low_ino < PROC_SCSI_FILE){ + return(proc_register(&proc_scsi, x)); + }else{ + return(proc_register(driver, x)); + } +} + +static inline int proc_scsi_unregister(struct proc_dir_entry *driver, int x) +{ + extern void scsi_init_free(char *ptr, unsigned int size); + + if(x <= PROC_SCSI_FILE) + return(proc_unregister(&proc_scsi, x)); + else { + struct proc_dir_entry **p = &driver->subdir, *dp; + int ret; + + while ((dp = *p) != NULL) { + if (dp->low_ino == x) + break; + p = &dp->next; + } + ret = proc_unregister(driver, x); + scsi_init_free((char *) dp, sizeof(struct proc_dir_entry) + 4); + return(ret); + } +} + +extern struct super_block *proc_read_super(struct super_block *,void *,int); +extern int init_proc_fs(void); +extern struct inode * proc_get_inode(struct super_block *, int, struct proc_dir_entry *); +extern void proc_statfs(struct super_block *, struct statfs *, int); +extern void proc_read_inode(struct inode *); +extern void proc_write_inode(struct inode *); +extern int proc_match(int, const char *, struct proc_dir_entry *); + +/* + * These are generic /proc routines that use the internal + * "struct proc_dir_entry" tree to traverse the filesystem. + * + * The /proc root directory has extended versions to take care + * of the /proc/ subdirectories. + */ +extern int proc_readdir(struct inode *, struct file *, void *, filldir_t); +extern int proc_lookup(struct inode *, const char *, int, struct inode **); + +extern struct inode_operations proc_dir_inode_operations; +extern struct inode_operations proc_net_inode_operations; +extern struct inode_operations proc_netdir_inode_operations; +extern struct inode_operations proc_scsi_inode_operations; +extern struct inode_operations proc_mem_inode_operations; +extern struct inode_operations proc_sys_inode_operations; +extern struct inode_operations proc_array_inode_operations; +extern struct inode_operations proc_arraylong_inode_operations; +extern struct inode_operations proc_kcore_inode_operations; +extern struct inode_operations proc_profile_inode_operations; +extern struct inode_operations proc_kmsg_inode_operations; +extern struct inode_operations proc_link_inode_operations; +extern struct inode_operations proc_fd_inode_operations; + +#endif diff --git a/linux/dev/include/linux/sched.h b/linux/dev/include/linux/sched.h new file mode 100644 index 0000000..3e7bcd4 --- /dev/null +++ b/linux/dev/include/linux/sched.h @@ -0,0 +1,521 @@ +#ifndef _LINUX_SCHED_H +#define _LINUX_SCHED_H + +/* + * define DEBUG if you want the wait-queues to have some extra + * debugging code. It's not normally used, but might catch some + * wait-queue coding errors. + * + * #define DEBUG + */ + +#include /* for HZ */ + +extern unsigned long event; + +#include +#include +#include +#include + +#include +#include +#include + +#include +#include +#include + +/* + * cloning flags: + */ +#define CSIGNAL 0x000000ff /* signal mask to be sent at exit */ +#define CLONE_VM 0x00000100 /* set if VM shared between processes */ +#define CLONE_FS 0x00000200 /* set if fs info shared between processes */ +#define CLONE_FILES 0x00000400 /* set if open files shared between processes */ +#define CLONE_SIGHAND 0x00000800 /* set if signal handlers shared */ +#define CLONE_PID 0x00001000 /* set if pid shared */ + +/* + * These are the constant used to fake the fixed-point load-average + * counting. Some notes: + * - 11 bit fractions expand to 22 bits by the multiplies: this gives + * a load-average precision of 10 bits integer + 11 bits fractional + * - if you want to count load-averages more often, you need more + * precision, or rounding will get you. With 2-second counting freq, + * the EXP_n values would be 1981, 2034 and 2043 if still using only + * 11 bit fractions. + */ +extern unsigned long avenrun[]; /* Load averages */ + +#define FSHIFT 11 /* nr of bits of precision */ +#define FIXED_1 (1<>= FSHIFT; + +#define CT_TO_SECS(x) ((x) / HZ) +#define CT_TO_USECS(x) (((x) % HZ) * 1000000/HZ) + +extern int nr_running, nr_tasks; +extern int last_pid; + +#define FIRST_TASK task[0] +#define LAST_TASK task[NR_TASKS-1] + +#include +#include +#include +#include +#include +#include +#include +#include + +#include + +#define TASK_RUNNING 0 +#define TASK_INTERRUPTIBLE 1 +#define TASK_UNINTERRUPTIBLE 2 +#define TASK_ZOMBIE 3 +#define TASK_STOPPED 4 +#define TASK_SWAPPING 5 + +/* + * Scheduling policies + */ +#define SCHED_OTHER 0 +#define SCHED_FIFO 1 +#define SCHED_RR 2 + +struct sched_param { + int sched_priority; +}; + +#ifndef NULL +#define NULL ((void *) 0) +#endif + +#ifdef __KERNEL__ + +extern void sched_init(void); +extern void show_state(void); +extern void trap_init(void); + +asmlinkage void schedule(void); + +/* Open file table structure */ +struct files_struct { + int count; + fd_set close_on_exec; + fd_set open_fds; + struct file * fd[NR_OPEN]; +}; + +#define INIT_FILES { \ + 1, \ + { { 0, } }, \ + { { 0, } }, \ + { NULL, } \ +} + +struct fs_struct { + int count; + unsigned short umask; + struct inode * root, * pwd; +}; + +#define INIT_FS { \ + 1, \ + 0022, \ + NULL, NULL \ +} + +struct mm_struct { + int count; + pgd_t * pgd; + unsigned long context; + unsigned long start_code, end_code, start_data, end_data; + unsigned long start_brk, brk, start_stack, start_mmap; + unsigned long arg_start, arg_end, env_start, env_end; + unsigned long rss, total_vm, locked_vm; + unsigned long def_flags; + struct vm_area_struct * mmap; + struct vm_area_struct * mmap_avl; + struct semaphore mmap_sem; +}; + +#define INIT_MM { \ + 1, \ + swapper_pg_dir, \ + 0, \ + 0, 0, 0, 0, \ + 0, 0, 0, 0, \ + 0, 0, 0, 0, \ + 0, 0, 0, \ + 0, \ + &init_mmap, &init_mmap, MUTEX } + +struct signal_struct { + int count; + struct sigaction action[32]; +}; + +#define INIT_SIGNALS { \ + 1, \ + { {0,}, } } + +struct task_struct { +/* these are hardcoded - don't touch */ + volatile long state; /* -1 unrunnable, 0 runnable, >0 stopped */ + long counter; + long priority; + unsigned long signal; + unsigned long blocked; /* bitmap of masked signals */ + unsigned long flags; /* per process flags, defined below */ + int errno; + long debugreg[8]; /* Hardware debugging registers */ + struct exec_domain *exec_domain; +/* various fields */ + struct linux_binfmt *binfmt; + struct task_struct *next_task, *prev_task; + struct task_struct *next_run, *prev_run; + unsigned long saved_kernel_stack; + unsigned long kernel_stack_page; + int exit_code, exit_signal; + /* ??? */ + unsigned long personality; + int dumpable:1; + int did_exec:1; + /* shouldn't this be pid_t? */ + int pid; + int pgrp; + int tty_old_pgrp; + int session; + /* boolean value for session group leader */ + int leader; + int groups[NGROUPS]; + /* + * pointers to (original) parent process, youngest child, younger sibling, + * older sibling, respectively. (p->father can be replaced with + * p->p_pptr->pid) + */ + struct task_struct *p_opptr, *p_pptr, *p_cptr, *p_ysptr, *p_osptr; + struct wait_queue *wait_chldexit; /* for wait4() */ + unsigned short uid,euid,suid,fsuid; + unsigned short gid,egid,sgid,fsgid; + unsigned long timeout, policy, rt_priority; + unsigned long it_real_value, it_prof_value, it_virt_value; + unsigned long it_real_incr, it_prof_incr, it_virt_incr; + struct timer_list real_timer; + long utime, stime, cutime, cstime, start_time; +/* mm fault and swap info: this can arguably be seen as either mm-specific or thread-specific */ + unsigned long min_flt, maj_flt, nswap, cmin_flt, cmaj_flt, cnswap; + int swappable:1; + unsigned long swap_address; + unsigned long old_maj_flt; /* old value of maj_flt */ + unsigned long dec_flt; /* page fault count of the last time */ + unsigned long swap_cnt; /* number of pages to swap on next pass */ +/* limits */ + struct rlimit rlim[RLIM_NLIMITS]; + unsigned short used_math; + char comm[16]; +/* file system info */ + int link_count; + struct tty_struct *tty; /* NULL if no tty */ +/* ipc stuff */ + struct sem_undo *semundo; + struct sem_queue *semsleeping; +/* ldt for this task - used by Wine. If NULL, default_ldt is used */ + struct desc_struct *ldt; +/* tss for this task */ + struct thread_struct tss; +/* filesystem information */ + struct fs_struct *fs; +/* open file information */ + struct files_struct *files; +/* memory management info */ + struct mm_struct *mm; +/* signal handlers */ + struct signal_struct *sig; +#ifdef __SMP__ + int processor; + int last_processor; + int lock_depth; /* Lock depth. We can context switch in and out of holding a syscall kernel lock... */ +#endif +}; + +/* + * Per process flags + */ +#define PF_ALIGNWARN 0x00000001 /* Print alignment warning msgs */ + /* Not implemented yet, only for 486*/ +#define PF_PTRACED 0x00000010 /* set if ptrace (0) has been called. */ +#define PF_TRACESYS 0x00000020 /* tracing system calls */ +#define PF_FORKNOEXEC 0x00000040 /* forked but didn't exec */ +#define PF_SUPERPRIV 0x00000100 /* used super-user privileges */ +#define PF_DUMPCORE 0x00000200 /* dumped core */ +#define PF_SIGNALED 0x00000400 /* killed by a signal */ + +#define PF_STARTING 0x00000002 /* being created */ +#define PF_EXITING 0x00000004 /* getting shut down */ + +#define PF_USEDFPU 0x00100000 /* Process used the FPU this quantum (SMP only) */ +#define PF_DTRACE 0x00200000 /* delayed trace (used on m68k) */ + +/* + * Limit the stack by to some sane default: root can always + * increase this limit if needed.. 8MB seems reasonable. + */ +#define _STK_LIM (8*1024*1024) + +#define DEF_PRIORITY (20*HZ/100) /* 200 ms time slices */ + +/* + * INIT_TASK is used to set up the first task table, touch at + * your own risk!. Base=0, limit=0x1fffff (=2MB) + */ +#define INIT_TASK \ +/* state etc */ { 0,DEF_PRIORITY,DEF_PRIORITY,0,0,0,0, \ +/* debugregs */ { 0, }, \ +/* exec domain */&default_exec_domain, \ +/* binfmt */ NULL, \ +/* schedlink */ &init_task,&init_task, &init_task, &init_task, \ +/* stack */ 0,(unsigned long) &init_kernel_stack, \ +/* ec,brk... */ 0,0,0,0,0, \ +/* pid etc.. */ 0,0,0,0,0, \ +/* suppl grps*/ {NOGROUP,}, \ +/* proc links*/ &init_task,&init_task,NULL,NULL,NULL,NULL, \ +/* uid etc */ 0,0,0,0,0,0,0,0, \ +/* timeout */ 0,SCHED_OTHER,0,0,0,0,0,0,0, \ +/* timer */ { NULL, NULL, 0, 0, it_real_fn }, \ +/* utime */ 0,0,0,0,0, \ +/* flt */ 0,0,0,0,0,0, \ +/* swp */ 0,0,0,0,0, \ +/* rlimits */ INIT_RLIMITS, \ +/* math */ 0, \ +/* comm */ "swapper", \ +/* fs info */ 0,NULL, \ +/* ipc */ NULL, NULL, \ +/* ldt */ NULL, \ +/* tss */ INIT_TSS, \ +/* fs */ &init_fs, \ +/* files */ &init_files, \ +/* mm */ &init_mm, \ +/* signals */ &init_signals, \ +} + +extern struct mm_struct init_mm; +extern struct task_struct init_task; +extern struct task_struct *task[NR_TASKS]; +extern struct task_struct *last_task_used_math; +extern struct task_struct *current_set[NR_CPUS]; +/* + * On a single processor system this comes out as current_set[0] when cpp + * has finished with it, which gcc will optimise away. + */ +#define current (0+current_set[smp_processor_id()]) /* Current on this processor */ +extern unsigned long volatile jiffies; +extern unsigned long itimer_ticks; +extern unsigned long itimer_next; +extern struct timeval xtime; +extern int need_resched; +extern void do_timer(struct pt_regs *); + +extern unsigned int * prof_buffer; +extern unsigned long prof_len; +extern unsigned long prof_shift; + +extern int securelevel; /* system security level */ + +#define CURRENT_TIME (xtime.tv_sec) + +extern void sleep_on(struct wait_queue ** p); +extern void interruptible_sleep_on(struct wait_queue ** p); +extern void wake_up(struct wait_queue ** p); +extern void wake_up_interruptible(struct wait_queue ** p); +extern void wake_up_process(struct task_struct * tsk); + +extern void notify_parent(struct task_struct * tsk, int signal); +extern void force_sig(unsigned long sig,struct task_struct * p); +extern int send_sig(unsigned long sig,struct task_struct * p,int priv); +extern int in_group_p(gid_t grp); + +extern int request_irq(unsigned int irq, + void (*handler)(int, void *, struct pt_regs *), + unsigned long flags, + const char *device, + void *dev_id); +extern void free_irq(unsigned int irq, void *dev_id); + +/* + * This has now become a routine instead of a macro, it sets a flag if + * it returns true (to do BSD-style accounting where the process is flagged + * if it uses root privs). The implication of this is that you should do + * normal permissions checks first, and check suser() last. + */ +#ifdef MACH + +extern inline int +suser(void) +{ + return 1; +} + +#else + +extern inline int suser(void) +{ + if (current->euid == 0) { + current->flags |= PF_SUPERPRIV; + return 1; + } + return 0; +} +#endif + +extern void copy_thread(int, unsigned long, unsigned long, struct task_struct *, struct pt_regs *); +extern void flush_thread(void); +extern void exit_thread(void); + +extern void exit_mm(struct task_struct *); +extern void exit_fs(struct task_struct *); +extern void exit_files(struct task_struct *); +extern void exit_sighand(struct task_struct *); +extern void release_thread(struct task_struct *); + +extern int do_execve(char *, char **, char **, struct pt_regs *); +extern int do_fork(unsigned long, unsigned long, struct pt_regs *); + +extern void add_wait_queue(struct wait_queue **p, struct wait_queue *wait); +extern void remove_wait_queue(struct wait_queue **p, struct wait_queue *wait); + +/* See if we have a valid user level fd. + * If it makes sense, return the file structure it references. + * Otherwise return NULL. + */ + +#ifdef MACH + +extern void __add_wait_queue (struct wait_queue **q, struct wait_queue *wait); +extern void add_wait_queue (struct wait_queue **q, struct wait_queue *wait); +extern void __remove_wait_queue (struct wait_queue **q, struct wait_queue *wait); +extern void remove_wait_queue (struct wait_queue **q, struct wait_queue *wait); + +#else /* !MACH */ + +extern inline struct file *file_from_fd(const unsigned int fd) +{ + + if (fd >= NR_OPEN) + return NULL; + /* either valid or null */ + return current->files->fd[fd]; +} + +/* + * The wait-queues are circular lists, and you have to be *very* sure + * to keep them correct. Use only these two functions to add/remove + * entries in the queues. + */ +extern inline void __add_wait_queue(struct wait_queue ** p, struct wait_queue * wait) +{ + struct wait_queue *head = *p; + struct wait_queue *next = WAIT_QUEUE_HEAD(p); + + if (head) + next = head; + *p = wait; + wait->next = next; +} + +extern inline void add_wait_queue(struct wait_queue ** p, struct wait_queue * wait) +{ + unsigned long flags; + + save_flags(flags); + cli(); + __add_wait_queue(p, wait); + restore_flags(flags); +} + +extern inline void __remove_wait_queue(struct wait_queue ** p, struct wait_queue * wait) +{ + struct wait_queue * next = wait->next; + struct wait_queue * head = next; + + for (;;) { + struct wait_queue * nextlist = head->next; + if (nextlist == wait) + break; + head = nextlist; + } + head->next = next; +} + +extern inline void remove_wait_queue(struct wait_queue ** p, struct wait_queue * wait) +{ + unsigned long flags; + + save_flags(flags); + cli(); + __remove_wait_queue(p, wait); + restore_flags(flags); +} + +extern inline void select_wait(struct wait_queue ** wait_address, select_table * p) +{ + struct select_table_entry * entry; + + if (!p || !wait_address) + return; + if (p->nr >= __MAX_SELECT_TABLE_ENTRIES) + return; + entry = p->entry + p->nr; + entry->wait_address = wait_address; + entry->wait.task = current; + entry->wait.next = NULL; + add_wait_queue(wait_address,&entry->wait); + p->nr++; +} + +#endif /* !MACH */ + +#define REMOVE_LINKS(p) do { unsigned long flags; \ + save_flags(flags) ; cli(); \ + (p)->next_task->prev_task = (p)->prev_task; \ + (p)->prev_task->next_task = (p)->next_task; \ + restore_flags(flags); \ + if ((p)->p_osptr) \ + (p)->p_osptr->p_ysptr = (p)->p_ysptr; \ + if ((p)->p_ysptr) \ + (p)->p_ysptr->p_osptr = (p)->p_osptr; \ + else \ + (p)->p_pptr->p_cptr = (p)->p_osptr; \ + } while (0) + +#define SET_LINKS(p) do { unsigned long flags; \ + save_flags(flags); cli(); \ + (p)->next_task = &init_task; \ + (p)->prev_task = init_task.prev_task; \ + init_task.prev_task->next_task = (p); \ + init_task.prev_task = (p); \ + restore_flags(flags); \ + (p)->p_ysptr = NULL; \ + if (((p)->p_osptr = (p)->p_pptr->p_cptr) != NULL) \ + (p)->p_osptr->p_ysptr = p; \ + (p)->p_pptr->p_cptr = p; \ + } while (0) + +#define for_each_task(p) \ + for (p = &init_task ; (p = p->next_task) != &init_task ; ) + +#endif /* __KERNEL__ */ + +#endif diff --git a/linux/dev/include/linux/skbuff.h b/linux/dev/include/linux/skbuff.h new file mode 100644 index 0000000..3f3128e --- /dev/null +++ b/linux/dev/include/linux/skbuff.h @@ -0,0 +1,470 @@ +/* + * Definitions for the 'struct sk_buff' memory handlers. + * + * Authors: + * Alan Cox, + * Florian La Roche, + * + * This program is free software; you can redistribute it and/or + * modify it under the terms of the GNU General Public License + * as published by the Free Software Foundation; either version + * 2 of the License, or (at your option) any later version. + */ + +#ifndef _LINUX_SKBUFF_H +#define _LINUX_SKBUFF_H + +#include +#include + +#include +#include + +#define CONFIG_SKB_CHECK 0 + +#define HAVE_ALLOC_SKB /* For the drivers to know */ +#define HAVE_ALIGNABLE_SKB /* Ditto 8) */ + + +#define FREE_READ 1 +#define FREE_WRITE 0 + +#define CHECKSUM_NONE 0 +#define CHECKSUM_HW 1 +#define CHECKSUM_UNNECESSARY 2 + +struct sk_buff_head +{ + struct sk_buff * next; + struct sk_buff * prev; + __u32 qlen; /* Must be same length as a pointer + for using debugging */ +#if CONFIG_SKB_CHECK + int magic_debug_cookie; +#endif +}; + + +struct sk_buff +{ + struct sk_buff * next; /* Next buffer in list */ + struct sk_buff * prev; /* Previous buffer in list */ + struct sk_buff_head * list; /* List we are on */ +#if CONFIG_SKB_CHECK + int magic_debug_cookie; +#endif + struct sk_buff *link3; /* Link for IP protocol level buffer chains */ + struct sock *sk; /* Socket we are owned by */ + unsigned long when; /* used to compute rtt's */ + struct timeval stamp; /* Time we arrived */ + struct linux_device *dev; /* Device we arrived on/are leaving by */ + union + { + struct tcphdr *th; + struct ethhdr *eth; + struct iphdr *iph; + struct udphdr *uh; + unsigned char *raw; + /* for passing file handles in a unix domain socket */ + void *filp; + } h; + + union + { + /* As yet incomplete physical layer views */ + unsigned char *raw; + struct ethhdr *ethernet; + } mac; + + struct iphdr *ip_hdr; /* For IPPROTO_RAW */ + unsigned long len; /* Length of actual data */ + unsigned long csum; /* Checksum */ + __u32 saddr; /* IP source address */ + __u32 daddr; /* IP target address */ + __u32 raddr; /* IP next hop address */ + __u32 seq; /* TCP sequence number */ + __u32 end_seq; /* seq [+ fin] [+ syn] + datalen */ + __u32 ack_seq; /* TCP ack sequence number */ + unsigned char proto_priv[16]; /* Protocol private data */ + volatile char acked, /* Are we acked ? */ + used, /* Are we in use ? */ + free, /* How to free this buffer */ + arp; /* Has IP/ARP resolution finished */ + unsigned char tries, /* Times tried */ + lock, /* Are we locked ? */ + localroute, /* Local routing asserted for this frame */ + pkt_type, /* Packet class */ + pkt_bridged, /* Tracker for bridging */ + ip_summed; /* Driver fed us an IP checksum */ +#define PACKET_HOST 0 /* To us */ +#define PACKET_BROADCAST 1 /* To all */ +#define PACKET_MULTICAST 2 /* To group */ +#define PACKET_OTHERHOST 3 /* To someone else */ + unsigned short users; /* User count - see datagram.c,tcp.c */ + unsigned short protocol; /* Packet protocol from driver. */ + unsigned int truesize; /* Buffer size */ + + atomic_t count; /* reference count */ + struct sk_buff *data_skb; /* Link to the actual data skb */ + unsigned char *head; /* Head of buffer */ + unsigned char *data; /* Data head pointer */ + unsigned char *tail; /* Tail pointer */ + unsigned char *end; /* End pointer */ + void (*destructor)(struct sk_buff *); /* Destruct function */ + __u16 redirport; /* Redirect port */ +#ifdef MACH +#ifdef MACH_INCLUDE + ipc_port_t reply; + mach_msg_type_name_t reply_type; + vm_map_copy_t copy; +#else + void *reply; + unsigned reply_type; + void *copy; +#endif +#endif +}; + +#ifdef CONFIG_SKB_LARGE +#define SK_WMEM_MAX 65535 +#define SK_RMEM_MAX 65535 +#else +#define SK_WMEM_MAX 32767 +#define SK_RMEM_MAX 32767 +#endif + +#if CONFIG_SKB_CHECK +#define SK_FREED_SKB 0x0DE2C0DE +#define SK_GOOD_SKB 0xDEC0DED1 +#define SK_HEAD_SKB 0x12231298 +#endif + +#ifdef __KERNEL__ +/* + * Handling routines are only of interest to the kernel + */ +#include + +#include + +#if 0 +extern void print_skb(struct sk_buff *); +#endif +extern void kfree_skb(struct sk_buff *skb, int rw); +extern void skb_queue_head_init(struct sk_buff_head *list); +extern void skb_queue_head(struct sk_buff_head *list,struct sk_buff *buf); +extern void skb_queue_tail(struct sk_buff_head *list,struct sk_buff *buf); +extern struct sk_buff * skb_dequeue(struct sk_buff_head *list); +extern void skb_insert(struct sk_buff *old,struct sk_buff *newsk); +extern void skb_append(struct sk_buff *old,struct sk_buff *newsk); +extern void skb_unlink(struct sk_buff *buf); +extern __u32 skb_queue_len(struct sk_buff_head *list); +extern struct sk_buff * skb_peek_copy(struct sk_buff_head *list); +extern struct sk_buff * alloc_skb(unsigned int size, int priority); +extern struct sk_buff * dev_alloc_skb(unsigned int size); +extern void kfree_skbmem(struct sk_buff *skb); +extern struct sk_buff * skb_clone(struct sk_buff *skb, int priority); +extern struct sk_buff * skb_copy(struct sk_buff *skb, int priority); +extern void skb_device_lock(struct sk_buff *skb); +extern void skb_device_unlock(struct sk_buff *skb); +extern void dev_kfree_skb(struct sk_buff *skb, int mode); +extern int skb_device_locked(struct sk_buff *skb); +extern unsigned char * skb_put(struct sk_buff *skb, int len); +extern unsigned char * skb_push(struct sk_buff *skb, int len); +extern unsigned char * skb_pull(struct sk_buff *skb, int len); +extern int skb_headroom(struct sk_buff *skb); +extern int skb_tailroom(struct sk_buff *skb); +extern void skb_reserve(struct sk_buff *skb, int len); +extern void skb_trim(struct sk_buff *skb, int len); + +extern __inline__ int skb_queue_empty(struct sk_buff_head *list) +{ + return (list->next == (struct sk_buff *) list); +} + +/* + * Peek an sk_buff. Unlike most other operations you _MUST_ + * be careful with this one. A peek leaves the buffer on the + * list and someone else may run off with it. For an interrupt + * type system cli() peek the buffer copy the data and sti(); + */ +extern __inline__ struct sk_buff *skb_peek(struct sk_buff_head *list_) +{ + struct sk_buff *list = ((struct sk_buff *)list_)->next; + if (list == (struct sk_buff *)list_) + list = NULL; + return list; +} + +/* + * Return the length of an sk_buff queue + */ + +extern __inline__ __u32 skb_queue_len(struct sk_buff_head *list_) +{ + return(list_->qlen); +} + +#if CONFIG_SKB_CHECK +extern int skb_check(struct sk_buff *skb,int,int, char *); +#define IS_SKB(skb) skb_check((skb), 0, __LINE__,__FILE__) +#define IS_SKB_HEAD(skb) skb_check((skb), 1, __LINE__,__FILE__) +#else +#define IS_SKB(skb) +#define IS_SKB_HEAD(skb) + +extern __inline__ void skb_queue_head_init(struct sk_buff_head *list) +{ + list->prev = (struct sk_buff *)list; + list->next = (struct sk_buff *)list; + list->qlen = 0; +} + +/* + * Insert an sk_buff at the start of a list. + * + * The "__skb_xxxx()" functions are the non-atomic ones that + * can only be called with interrupts disabled. + */ + +extern __inline__ void __skb_queue_head(struct sk_buff_head *list, struct sk_buff *newsk) +{ + struct sk_buff *prev, *next; + + newsk->list = list; + list->qlen++; + prev = (struct sk_buff *)list; + next = prev->next; + newsk->next = next; + newsk->prev = prev; + next->prev = newsk; + prev->next = newsk; +} + +extern __inline__ void skb_queue_head(struct sk_buff_head *list, struct sk_buff *newsk) +{ + unsigned long flags; + + save_flags(flags); + cli(); + __skb_queue_head(list, newsk); + restore_flags(flags); +} + +/* + * Insert an sk_buff at the end of a list. + */ + +extern __inline__ void __skb_queue_tail(struct sk_buff_head *list, struct sk_buff *newsk) +{ + struct sk_buff *prev, *next; + + newsk->list = list; + list->qlen++; + next = (struct sk_buff *)list; + prev = next->prev; + newsk->next = next; + newsk->prev = prev; + next->prev = newsk; + prev->next = newsk; +} + +extern __inline__ void skb_queue_tail(struct sk_buff_head *list, struct sk_buff *newsk) +{ + unsigned long flags; + + save_flags(flags); + cli(); + __skb_queue_tail(list, newsk); + restore_flags(flags); +} + +/* + * Remove an sk_buff from a list. + */ + +extern __inline__ struct sk_buff *__skb_dequeue(struct sk_buff_head *list) +{ + struct sk_buff *next, *prev, *result; + + prev = (struct sk_buff *) list; + next = prev->next; + result = NULL; + if (next != prev) { + result = next; + next = next->next; + list->qlen--; + next->prev = prev; + prev->next = next; + result->next = NULL; + result->prev = NULL; + result->list = NULL; + } + return result; +} + +extern __inline__ struct sk_buff *skb_dequeue(struct sk_buff_head *list) +{ + long flags; + struct sk_buff *result; + + save_flags(flags); + cli(); + result = __skb_dequeue(list); + restore_flags(flags); + return result; +} + +/* + * Insert a packet on a list. + */ + +extern __inline__ void __skb_insert(struct sk_buff *newsk, + struct sk_buff * prev, struct sk_buff *next, + struct sk_buff_head * list) +{ + newsk->next = next; + newsk->prev = prev; + next->prev = newsk; + prev->next = newsk; + newsk->list = list; + list->qlen++; +} + +/* + * Place a packet before a given packet in a list + */ +extern __inline__ void skb_insert(struct sk_buff *old, struct sk_buff *newsk) +{ + unsigned long flags; + + save_flags(flags); + cli(); + __skb_insert(newsk, old->prev, old, old->list); + restore_flags(flags); +} + +/* + * Place a packet after a given packet in a list. + */ + +extern __inline__ void skb_append(struct sk_buff *old, struct sk_buff *newsk) +{ + unsigned long flags; + + save_flags(flags); + cli(); + __skb_insert(newsk, old, old->next, old->list); + restore_flags(flags); +} + +/* + * remove sk_buff from list. _Must_ be called atomically, and with + * the list known.. + */ +extern __inline__ void __skb_unlink(struct sk_buff *skb, struct sk_buff_head *list) +{ + struct sk_buff * next, * prev; + + list->qlen--; + next = skb->next; + prev = skb->prev; + skb->next = NULL; + skb->prev = NULL; + skb->list = NULL; + next->prev = prev; + prev->next = next; +} + +/* + * Remove an sk_buff from its list. Works even without knowing the list it + * is sitting on, which can be handy at times. It also means that THE LIST + * MUST EXIST when you unlink. Thus a list must have its contents unlinked + * _FIRST_. + */ + +extern __inline__ void skb_unlink(struct sk_buff *skb) +{ + unsigned long flags; + + save_flags(flags); + cli(); + if(skb->list) + __skb_unlink(skb, skb->list); + restore_flags(flags); +} + +/* + * Add data to an sk_buff + */ +extern __inline__ unsigned char *skb_put(struct sk_buff *skb, int len) +{ + unsigned char *tmp=skb->tail; + skb->tail+=len; + skb->len+=len; + if(skb->tail>skb->end) + { + __label__ here; + panic("skput:over: %p:%d", &&here,len); +here: + } + return tmp; +} + +extern __inline__ unsigned char *skb_push(struct sk_buff *skb, int len) +{ + skb->data-=len; + skb->len+=len; + if(skb->datahead) + { + __label__ here; + panic("skpush:under: %p:%d", &&here,len); +here: + } + return skb->data; +} + +extern __inline__ unsigned char * skb_pull(struct sk_buff *skb, int len) +{ + if(len > skb->len) + return NULL; + skb->data+=len; + skb->len-=len; + return skb->data; +} + +extern __inline__ int skb_headroom(struct sk_buff *skb) +{ + return skb->data-skb->head; +} + +extern __inline__ int skb_tailroom(struct sk_buff *skb) +{ + return skb->end-skb->tail; +} + +extern __inline__ void skb_reserve(struct sk_buff *skb, int len) +{ + skb->data+=len; + skb->tail+=len; +} + +extern __inline__ void skb_trim(struct sk_buff *skb, int len) +{ + if(skb->len>len) + { + skb->len=len; + skb->tail=skb->data+len; + } +} + +#endif + +extern struct sk_buff * skb_recv_datagram(struct sock *sk,unsigned flags,int noblock, int *err); +extern int datagram_select(struct sock *sk, int sel_type, select_table *wait); +extern void skb_copy_datagram(struct sk_buff *from, int offset, char *to,int size); +extern void skb_copy_datagram_iovec(struct sk_buff *from, int offset, struct iovec *to,int size); +extern void skb_free_datagram(struct sock * sk, struct sk_buff *skb); + +#endif /* __KERNEL__ */ +#endif /* _LINUX_SKBUFF_H */ diff --git a/linux/dev/include/linux/types.h b/linux/dev/include/linux/types.h new file mode 100644 index 0000000..ef0f2fc --- /dev/null +++ b/linux/dev/include/linux/types.h @@ -0,0 +1,112 @@ +#ifndef _LINUX_TYPES_H +#define _LINUX_TYPES_H + +#include +#include + +#ifndef __KERNEL_STRICT_NAMES + +typedef __kernel_fd_set fd_set; + +#ifndef MACH_INCLUDE +typedef __kernel_dev_t dev_t; +typedef __kernel_ino_t ino_t; +typedef __kernel_mode_t mode_t; +typedef __kernel_nlink_t nlink_t; +#endif + +#ifdef MACH_INCLUDE +#define off_t long +#else +typedef __kernel_off_t off_t; +#endif + +typedef __kernel_pid_t pid_t; + +#ifdef MACH_INCLUDE +#define uid_t unsigned short +#define gid_t unsigned short +#define daddr_t int +#else +typedef __kernel_uid_t uid_t; +typedef __kernel_gid_t gid_t; +typedef __kernel_daddr_t daddr_t; +#endif + +#if defined(__GNUC__) && !defined(__STRICT_ANSI__) +typedef __kernel_loff_t loff_t; +#endif + +/* + * The following typedefs are also protected by individual ifdefs for + * historical reasons: + */ +#ifndef _SIZE_T +#define _SIZE_T +#ifndef MACH_INCLUDE +typedef __kernel_size_t size_t; +#endif +#endif + +#ifndef _SSIZE_T +#define _SSIZE_T +#ifndef MACH_INCLUDE +typedef __kernel_ssize_t ssize_t; +#endif +#endif + +#ifndef _PTRDIFF_T +#define _PTRDIFF_T +typedef __kernel_ptrdiff_t ptrdiff_t; +#endif + +#ifndef _TIME_T +#define _TIME_T +#ifdef MACH_INCLUDE +#define time_t long +#else +typedef __kernel_time_t time_t; +#endif +#endif + +#ifndef _CLOCK_T +#define _CLOCK_T +typedef __kernel_clock_t clock_t; +#endif + +#ifndef _CADDR_T +#define _CADDR_T +#ifndef MACH_INCLUDE +typedef __kernel_caddr_t caddr_t; +#endif +#endif + +#ifndef MACH_INCLUDE +/* bsd */ +typedef unsigned char u_char; +typedef unsigned short u_short; +typedef unsigned int u_int; +typedef unsigned long u_long; +#endif + +/* sysv */ +typedef unsigned char unchar; +typedef unsigned short ushort; +typedef unsigned int uint; +typedef unsigned long ulong; + +#endif /* __KERNEL_STRICT_NAMES */ + +/* + * Below are truly Linux-specific types that should never collide with + * any application/library that wants linux/types.h. + */ + +struct ustat { + __kernel_daddr_t f_tfree; + __kernel_ino_t f_tinode; + char f_fname[6]; + char f_fpack[6]; +}; + +#endif /* _LINUX_TYPES_H */ -- cgit v1.2.3