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2b94c69d1d
freebsd-dev/sys/compat/ndis/pe_var.h
Bill Paul 2b94c69d1d Continue my efforts to imitate Windows as closely as possible by 
attempting to duplicate Windows spinlocks. Windows spinlocks differ
from FreeBSD spinlocks in the way they block preemption. FreeBSD
spinlocks use critical_enter(), which masks off _all_ interrupts.
This prevents any other threads from being scheduled, but it also
prevents ISRs from running. In Windows, preemption is achieved by
raising the processor IRQL to DISPATCH_LEVEL, which prevents other
threads from preempting you, but does _not_ prevent device ISRs
from running. (This is essentially what Solaris calls dispatcher
locks.) The Windows spinlock itself (kspin_lock) is just an integer
value which is atomically set when you acquire the lock and atomically
cleared when you release it.

FreeBSD doesn't have IRQ levels, so we have to cheat a little by
using thread priorities: normal thread priority is PASSIVE_LEVEL,
lowest interrupt thread priority is DISPATCH_LEVEL, highest thread
priority is DEVICE_LEVEL (PI_REALTIME) and critical_enter() is
HIGH_LEVEL. In practice, only PASSIVE_LEVEL and DISPATCH_LEVEL
matter to us. The immediate benefit of all this is that I no
longer have to rely on a mutex pool.

Now, I'm sure many people will be seized by the urge to criticize
me for doing an end run around our own spinlock implementation, but
it makes more sense to do it this way. Well, it does to me anyway.

Overview of the changes:

- Properly implement hal_lock(), hal_unlock(), hal_irql(),
  hal_raise_irql() and hal_lower_irql() so that they more closely
  resemble their Windows counterparts. The IRQL is determined by
  thread priority.

- Make ntoskrnl_lock_dpc() and ntoskrnl_unlock_dpc() do what they do
  in Windows, which is to atomically set/clear the lock value. These
  routines are designed to be called from DISPATCH_LEVEL, and are
  actually half of the work involved in acquiring/releasing spinlocks.

- Add FASTCALL1(), FASTCALL2() and FASTCALL3() macros/wrappers
  that allow us to call a _fastcall function in spite of the fact
  that our version of gcc doesn't support __attribute__((__fastcall__))
  yet. The macros take 1, 2 or 3 arguments, respectively. We need
  to call hal_lock(), hal_unlock() etc... ourselves, but can't really
  invoke the function directly. I could have just made the underlying
  functions native routines and put _fastcall wrappers around them for
  the benefit of Windows binaries, but that would create needless bloat.

- Remove ndis_mtxpool and all references to it. We don't need it
  anymore.

- Re-implement the NdisSpinLock routines so that they use hal_lock()
  and friends like they do in Windows.

- Use the new spinlock methods for handling lookaside lists and
  linked list updates in place of the mutex locks that were there
  before.

- Remove mutex locking from ndis_isr() and ndis_intrhand() since they're
  already called with ndis_intrmtx held in if_ndis.c.

- Put ndis_destroy_lock() code under explicit #ifdef notdef/#endif.
  It turns out there are some drivers which stupidly free the memory
  in which their spinlocks reside before calling ndis_destroy_lock()
  on them (touch-after-free bug). The ADMtek wireless driver
  is guilty of this faux pas. (Why this doesn't clobber Windows I
  have no idea.)

- Make NdisDprAcquireSpinLock() and NdisDprReleaseSpinLock() into
  real functions instead of aliasing them to NdisAcaquireSpinLock()
  and NdisReleaseSpinLock(). The Dpr routines use
  KeAcquireSpinLockAtDpcLevel() level and KeReleaseSpinLockFromDpcLevel(),
  which acquires the lock without twiddling the IRQL.

- In ndis_linksts_done(), do _not_ call ndis_80211_getstate(). Some
  drivers may call the status/status done callbacks as the result of
  setting an OID: ndis_80211_getstate() gets OIDs, which means we
  might cause the driver to recursively access some of its internal
  structures unexpectedly. The ndis_ticktask() routine will call
  ndis_80211_getstate() for us eventually anyway.

- Fix the channel setting code a little in ndis_80211_setstate(),
  and initialize the channel to IEEE80211_CHAN_ANYC. (The Microsoft
  spec says you're not supposed to twiddle the channel in BSS mode;
  I may need to enforce this later.) This fixes the problems I was
  having with the ADMtek adm8211 driver: we were setting the channel
  to a non-standard default, which would cause it to fail to associate
  in BSS mode.

- Use hal_raise_irql() to raise our IRQL to DISPATCH_LEVEL when
  calling certain miniport routines, per the Microsoft documentation.

I think that's everything. Hopefully, other than fixing the ADMtek
driver, there should be no apparent change in behavior.
2004-04-14 07:48:03 +00:00

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/*
* Copyright (c) 2003
* Bill Paul <wpaul@windriver.com>. All rights reserved.
*
* Redistribution and use in source and binary forms, with or without
* modification, are permitted provided that the following conditions
* are met:
* 1. Redistributions of source code must retain the above copyright
* notice, this list of conditions and the following disclaimer.
* 2. Redistributions in binary form must reproduce the above copyright
* notice, this list of conditions and the following disclaimer in the
* documentation and/or other materials provided with the distribution.
* 3. All advertising materials mentioning features or use of this software
* must display the following acknowledgement:
* This product includes software developed by Bill Paul.
* 4. Neither the name of the author nor the names of any co-contributors
* may be used to endorse or promote products derived from this software
* without specific prior written permission.
*
* THIS SOFTWARE IS PROVIDED BY Bill Paul AND CONTRIBUTORS ``AS IS'' AND
* ANY EXPRESS OR IMPLIED WARRANTIES, INCLUDING, BUT NOT LIMITED TO, THE
* IMPLIED WARRANTIES OF MERCHANTABILITY AND FITNESS FOR A PARTICULAR PURPOSE
* ARE DISCLAIMED. IN NO EVENT SHALL Bill Paul OR THE VOICES IN HIS HEAD
* BE LIABLE FOR ANY DIRECT, INDIRECT, INCIDENTAL, SPECIAL, EXEMPLARY, OR
* CONSEQUENTIAL DAMAGES (INCLUDING, BUT NOT LIMITED TO, PROCUREMENT OF
* SUBSTITUTE GOODS OR SERVICES; LOSS OF USE, DATA, OR PROFITS; OR BUSINESS
* INTERRUPTION) HOWEVER CAUSED AND ON ANY THEORY OF LIABILITY, WHETHER IN
* CONTRACT, STRICT LIABILITY, OR TORT (INCLUDING NEGLIGENCE OR OTHERWISE)
* ARISING IN ANY WAY OUT OF THE USE OF THIS SOFTWARE, EVEN IF ADVISED OF
* THE POSSIBILITY OF SUCH DAMAGE.
*
* $FreeBSD$
*/
#ifndef _PE_VAR_H_
#define _PE_VAR_H_
/*
* Image Format
*/
#define IMAGE_DOS_SIGNATURE 0x5A4D /* MZ */
#define IMAGE_OS2_SIGNATURE 0x454E /* NE */
#define IMAGE_OS2_SIGNATURE_LE 0x454C /* LE */
#define IMAGE_VXD_SIGNATURE 0x454C /* LE */
#define IMAGE_NT_SIGNATURE 0x00004550 /* PE00 */
/*
* All PE files have one of these, just so if you attempt to
* run them, they'll print out a message telling you they can
* only be run in Windows.
*/
struct image_dos_header {
uint16_t idh_magic; /* Magic number */
uint16_t idh_cblp; /* Bytes on last page of file */
uint16_t idh_cp; /* Pages in file */
uint16_t idh_crlc; /* Relocations */
uint16_t idh_cparhdr; /* Size of header in paragraphs */
uint16_t idh_minalloc; /* Minimum extra paragraphs needed */
uint16_t idh_maxalloc; /* Maximum extra paragraphs needed */
uint16_t idh_ss; /* Initial (relative) SS value */
uint16_t idh_sp; /* Initial SP value */
uint16_t idh_csum; /* Checksum */
uint16_t idh_ip; /* Initial IP value */
uint16_t idh_cs; /* Initial (relative) CS value */
uint16_t idh_lfarlc; /* File address of relocation table */
uint16_t idh_ovno; /* Overlay number */
uint16_t idh_rsvd1[4]; /* Reserved words */
uint16_t idh_oemid; /* OEM identifier (for idh_oeminfo) */
uint16_t idh_oeminfo; /* OEM information; oemid specific */
uint16_t idh_rsvd2[10]; /* Reserved words */
uint32_t idh_lfanew; /* File address of new exe header */
};
typedef struct image_dos_header image_dos_header;
/*
* File header format.
*/
struct image_file_header {
uint16_t ifh_machine; /* Machine type */
uint16_t ifh_numsections; /* # of sections */
uint32_t ifh_timestamp; /* Date/time stamp */
uint32_t ifh_symtblptr; /* Offset to symbol table */
uint32_t ifh_numsyms; /* # of symbols */
uint16_t ifh_optionalhdrlen; /* Size of optional header */
uint16_t ifh_characteristics; /* Characteristics */
};
typedef struct image_file_header image_file_header;
/* Machine types */
#define IMAGE_FILE_MACHINE_UNKNOWN 0
#define IMAGE_FILE_MACHINE_I860 0x014d
#define IMAGE_FILE_MACHINE_I386 0x014c
#define IMAGE_FILE_MACHINE_R3000 0x0162
#define IMAGE_FILE_MACHINE_R4000 0x0166
#define IMAGE_FILE_MACHINE_R10000 0x0168
#define IMAGE_FILE_MACHINE_WCEMIPSV2 0x0169
#define IMAGE_FILE_MACHINE_ALPHA 0x0184
#define IMAGE_FILE_MACHINE_SH3 0x01a2
#define IMAGE_FILE_MACHINE_SH3DSP 0x01a3
#define IMAGE_FILE_MACHINE_SH3E 0x01a4
#define IMAGE_FILE_MACHINE_SH4 0x01a6
#define IMAGE_FILE_MACHINE_SH5 0x01a8
#define IMAGE_FILE_MACHINE_ARM 0x01c0
#define IMAGE_FILE_MACHINE_THUMB 0x01c2
#define IMAGE_FILE_MACHINE_AM33 0x01d3
#define IMAGE_FILE_MACHINE_POWERPC 0x01f0
#define IMAGE_FILE_MACHINE_POWERPCFP 0x01f1
#define IMAGE_FILE_MACHINE_IA64 0x0200
#define IMAGE_FILE_MACHINE_MIPS16 0x0266
#define IMAGE_FILE_MACHINE_ALPHA64 0x0284
#define IMAGE_FILE_MACHINE_MIPSFPU 0x0366
#define IMAGE_FILE_MACHINE_MIPSFPU16 0x0466
#define IMAGE_FILE_MACHINE_AXP64 IMAGE_FILE_MACHINE_ALPHA64
#define IMAGE_FILE_MACHINE_TRICORE 0x0520
#define IMAGE_FILE_MACHINE_CEF 0x0cef
#define IMAGE_FILE_MACHINE_EBC 0x0ebc
#define IMAGE_FILE_MACHINE_AMD64 0x8664
#define IMAGE_FILE_MACHINE_M32R 0x9041
#define IMAGE_FILE_MACHINE_CEE 0xc0ee
/* Characteristics */
#define IMAGE_FILE_RELOCS_STRIPPED 0x0001 /* No relocation info */
#define IMAGE_FILE_EXECUTABLE_IMAGE 0x0002
#define IMAGE_FILE_LINE_NUMS_STRIPPED 0x0004
#define IMAGE_FILE_LOCAL_SYMS_STRIPPED 0x0008
#define IMAGE_FILE_AGGRESIVE_WS_TRIM 0x0010
#define IMAGE_FILE_LARGE_ADDRESS_AWARE 0x0020
#define IMAGE_FILE_16BIT_MACHINE 0x0040
#define IMAGE_FILE_BYTES_REVERSED_LO 0x0080
#define IMAGE_FILE_32BIT_MACHINE 0x0100
#define IMAGE_FILE_DEBUG_STRIPPED 0x0200
#define IMAGE_FILE_REMOVABLE_RUN_FROM_SWAP 0x0400
#define IMAGE_FILE_NET_RUN_FROM_SWAP 0x0800
#define IMAGE_FILE_SYSTEM 0x1000
#define IMAGE_FILE_DLL 0x2000
#define IMAGE_FILE_UP_SYSTEM_ONLY 0x4000
#define IMAGE_FILE_BYTES_REVERSED_HI 0x8000
#define IMAGE_SIZEOF_FILE_HEADER 20
/*
* Directory format.
*/
struct image_data_directory {
uint32_t idd_vaddr; /* virtual address */
uint32_t idd_size; /* size */
};
typedef struct image_data_directory image_data_directory;
#define IMAGE_DIRECTORY_ENTRIES_MAX 16
/*
* Optional header format.
*/
struct image_optional_header {
/* Standard fields */
uint16_t ioh_magic;
uint8_t ioh_linkerver_major;
uint8_t ioh_linkerver_minor;
uint32_t ioh_codesize;
uint32_t ioh_datasize;
uint32_t ioh_bsssize;
uint32_t ioh_entryaddr;
uint32_t ioh_codebaseaddr;
uint32_t ioh_databaseaddr;
/* NT-specific fields */
uint32_t ioh_imagebase;
uint32_t ioh_sectalign;
uint32_t ioh_filealign;
uint16_t ioh_osver_major;
uint16_t ioh_osver_minor;
uint16_t ioh_imagever_major;
uint16_t ioh_imagever_minor;
uint16_t ioh_subsys_major;
uint16_t ioh_subsys_minor;
uint32_t ioh_win32ver;
uint32_t ioh_imagesize;
uint32_t ioh_headersize;
uint32_t ioh_csum;
uint16_t ioh_subsys;
uint16_t ioh_dll_characteristics;
uint32_t ioh_stackreservesize;
uint32_t ioh_stackcommitsize;
uint32_t ioh_heapreservesize;
uint32_t ioh_heapcommitsize;
uint16_t ioh_loaderflags;
uint32_t ioh_rva_size_cnt;
image_data_directory ioh_datadir[IMAGE_DIRECTORY_ENTRIES_MAX];
};
typedef struct image_optional_header image_optional_header;
struct image_nt_header {
uint32_t inh_signature;
image_file_header inh_filehdr;
image_optional_header inh_optionalhdr;
};
typedef struct image_nt_header image_nt_header;
/* Directory Entries */
#define IMAGE_DIRECTORY_ENTRY_EXPORT 0 /* Export Directory */
#define IMAGE_DIRECTORY_ENTRY_IMPORT 1 /* Import Directory */
#define IMAGE_DIRECTORY_ENTRY_RESOURCE 2 /* Resource Directory */
#define IMAGE_DIRECTORY_ENTRY_EXCEPTION 3 /* Exception Directory */
#define IMAGE_DIRECTORY_ENTRY_SECURITY 4 /* Security Directory */
#define IMAGE_DIRECTORY_ENTRY_BASERELOC 5 /* Base Relocation Table */
#define IMAGE_DIRECTORY_ENTRY_DEBUG 6 /* Debug Directory */
#define IMAGE_DIRECTORY_ENTRY_COPYRIGHT 7 /* Description String */
#define IMAGE_DIRECTORY_ENTRY_GLOBALPTR 8 /* Machine Value (MIPS GP) */
#define IMAGE_DIRECTORY_ENTRY_TLS 9 /* TLS Directory */
#define IMAGE_DIRECTORY_ENTRY_LOAD_CONFIG 10 /* Load Configuration Directory */
#define IMAGE_DIRECTORY_ENTRY_BOUND_IMPORT 11 /* Bound Import Directory in headers */
#define IMAGE_DIRECTORY_ENTRY_IAT 12 /* Import Address Table */
#define IMAGE_DIRECTORY_ENTRY_DELAY_IMPORT 13
#define IMAGE_DIRECTORY_ENTRY_COM_DESCRIPTOR 14
/* Resource types */
#define RT_CURSOR 1
#define RT_BITMAP 2
#define RT_ICON 3
#define RT_MENU 4
#define RT_DIALOG 5
#define RT_STRING 6
#define RT_FONTDIR 7
#define RT_FONT 8
#define RT_ACCELERATOR 9
#define RT_RCDATA 10
#define RT_MESSAGETABLE 11
#define RT_GROUP_CURSOR 12
#define RT_GROUP_ICON 14
#define RT_VERSION 16
#define RT_DLGINCLUDE 17
#define RT_PLUGPLAY 19
#define RT_VXD 20
#define RT_ANICURSOR 21
#define RT_ANIICON 22
#define RT_HTML 23
/*
* Section header format.
*/
#define IMAGE_SHORT_NAME_LEN 8
struct image_section_header {
uint8_t ish_name[IMAGE_SHORT_NAME_LEN];
union {
uint32_t ish_paddr;
uint32_t ish_vsize;
} ish_misc;
uint32_t ish_vaddr;
uint32_t ish_rawdatasize;
uint32_t ish_rawdataaddr;
uint32_t ish_relocaddr;
uint32_t ish_linenumaddr;
uint16_t ish_numrelocs;
uint16_t ish_numlinenums;
uint32_t ish_characteristics;
};
typedef struct image_section_header image_section_header;
#define IMAGE_SIZEOF_SECTION_HEADER 40
/*
* Import format
*/
struct image_import_by_name {
uint16_t iibn_hint;
u_int8_t iibn_name[1];
};
#define IMAGE_ORDINAL_FLAG 0x80000000
#define IMAGE_ORDINAL(Ordinal) (Ordinal & 0xffff)
struct image_import_descriptor {
uint32_t iid_import_name_table_addr;
uint32_t iid_timestamp;
uint32_t iid_forwardchain;
uint32_t iid_nameaddr;
uint32_t iid_import_address_table_addr;
};
typedef struct image_import_descriptor image_import_descriptor;
struct image_base_reloc {
uint32_t ibr_vaddr;
uint32_t ibr_blocksize;
uint16_t ibr_rel[1];
};
typedef struct image_base_reloc image_base_reloc;
#define IMR_RELTYPE(x) ((x >> 12) & 0xF)
#define IMR_RELOFFSET(x) (x & 0xFFF)
/* generic relocation types */
#define IMAGE_REL_BASED_ABSOLUTE 0
#define IMAGE_REL_BASED_HIGH 1
#define IMAGE_REL_BASED_LOW 2
#define IMAGE_REL_BASED_HIGHLOW 3
#define IMAGE_REL_BASED_HIGHADJ 4
#define IMAGE_REL_BASED_MIPS_JMPADDR 5
#define IMAGE_REL_BASED_SECTION 6
#define IMAGE_REL_BASED_REL 7
#define IMAGE_REL_BASED_MIPS_JMPADDR16 9
#define IMAGE_REL_BASED_IA64_IMM64 9 /* yes, 9 too */
#define IMAGE_REL_BASED_DIR64 10
#define IMAGE_REL_BASED_HIGH3ADJ 11
struct image_resource_directory_entry {
uint32_t irde_name;
uint32_t irde_dataoff;
};
typedef struct image_resource_directory_entry image_resource_directory_entry;
#define RESOURCE_NAME_STR 0x80000000
#define RESOURCE_DIR_FLAG 0x80000000
struct image_resource_directory {
uint32_t ird_characteristics;
uint32_t ird_timestamp;
uint16_t ird_majorver;
uint16_t ird_minorver;
uint16_t ird_named_entries;
uint16_t ird_id_entries;
#ifdef notdef
image_resource_directory_entry ird_entries[1];
#endif
};
typedef struct image_resource_directory image_resource_directory;
struct image_resource_directory_string {
uint16_t irds_len;
char irds_name[1];
};
typedef struct image_resource_directory_string image_resource_directory_string;
struct image_resource_directory_string_u {
uint16_t irds_len;
char irds_name[1];
};
typedef struct image_resource_directory_string_u
image_resource_directory_string_u;
struct image_resource_data_entry {
uint32_t irde_offset;
uint32_t irde_size;
uint32_t irde_codepage;
uint32_t irde_rsvd;
};
typedef struct image_resource_data_entry image_resource_data_entry;
struct message_resource_data {
uint32_t mrd_numblocks;
#ifdef notdef
message_resource_block mrd_blocks[1];
#endif
};
typedef struct message_resource_data message_resource_data;
struct message_resource_block {
uint32_t mrb_lowid;
uint32_t mrb_highid;
uint32_t mrb_entryoff;
};
typedef struct message_resource_block message_resource_block;
struct message_resource_entry {
uint16_t mre_len;
uint16_t mre_flags;
char mre_text[];
};
typedef struct message_resource_entry message_resource_entry;
#define MESSAGE_RESOURCE_UNICODE 0x0001
struct image_patch_table {
char *ipt_name;
void (*ipt_func)(void);
};
typedef struct image_patch_table image_patch_table;
/*
* Note: Windows uses the _stdcall calling convention. This means
* that the callback functions provided in the function table must
* be declared using __attribute__((__stdcall__)), otherwise the
* Windows code will likely screw up the %esp register and cause
* us to jump to an invalid address when it returns.
*/
#ifdef __amd64__
#define __stdcall
#else
#define __stdcall __attribute__((__stdcall__))
#endif
/*
* This mess allows us to call a _fastcall style routine with our
* version of gcc, which lacks __attribute__((__fastcall__)). Only
* has meaning on x86; everywhere else, it's a no-op.
*/
#ifdef __i386__
typedef __stdcall int (*fcall)(void);
typedef __stdcall int (*fcall2)(int);
static __inline uint32_t
fastcall1(fcall f, uint32_t a)
{
__asm__ __volatile__ ("movl %0,%%ecx" : : "r" (a));
return(f());
}
static __inline uint32_t
fastcall2(fcall f, uint32_t a, uint32_t b)
{
__asm__ __volatile__ ("movl %0,%%ecx" : : "r" (a));
__asm__ __volatile__ ("movl %0,%%edx" : : "r" (b));
return(f());
}
static __inline uint32_t
fastcall3(fcall2 f, uint32_t a, uint32_t b, uint32_t c)
{
__asm__ __volatile__ ("movl %0,%%ecx" : : "r" (a));
__asm__ __volatile__ ("movl %0,%%edx" : : "r" (b));
return(f(c));
}
#define FASTCALL1(f, a) \
fastcall1((fcall)(f), (uint32_t)(a))
#define FASTCALL2(f, a, b) \
fastcall2((fcall)(f), (uint32_t)(a), (uint32_t)(b))
#define FASTCALL3(f, a, b, c) \
fastcall3((fcall2)(f), (uint32_t)(a), (uint32_t)(b), (uint32_t)(c))
#else
#define FASTCALL1(f, a) (f)((a))
#define FASTCALL2(f, a, b) (f)((a), (b))
#define FASTCALL3(f, a, b, c) (f)((a), (b), (c))
#endif /* __i386__ */
__BEGIN_DECLS
extern int pe_get_dos_header(vm_offset_t, image_dos_header *);
extern int pe_is_nt_image(vm_offset_t);
extern int pe_get_optional_header(vm_offset_t, image_optional_header *);
extern int pe_get_file_header(vm_offset_t, image_file_header *);
extern int pe_get_section_header(vm_offset_t, image_section_header *);
extern int pe_numsections(vm_offset_t);
extern vm_offset_t pe_imagebase(vm_offset_t);
extern vm_offset_t pe_directory_offset(vm_offset_t, uint32_t);
extern vm_offset_t pe_translate_addr (vm_offset_t, uint32_t);
extern int pe_get_section(vm_offset_t, image_section_header *, const char *);
extern int pe_relocate(vm_offset_t);
extern int pe_get_import_descriptor(vm_offset_t, image_import_descriptor *, char *);
extern int pe_patch_imports(vm_offset_t, char *, image_patch_table *);
extern int pe_get_messagetable(vm_offset_t, message_resource_data **);
extern int pe_get_message(vm_offset_t, uint32_t, char **, int *, uint16_t *);
__END_DECLS
#endif /* _PE_VAR_H_ */
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