767 lines
20 KiB
C
767 lines
20 KiB
C
|
|
#include <stdint.h>
|
|
#include <stdio.h>
|
|
#include <string.h>
|
|
#include <alloca.h>
|
|
#include <malloc.h>
|
|
#include <setjmp.h>
|
|
#include <envz.h>
|
|
|
|
#include <kos32sys.h>
|
|
|
|
#include "list.h"
|
|
#include "pe.h"
|
|
|
|
#define unlikely(x) __builtin_expect(!!(x), 0)
|
|
|
|
//#define DBG(format,...) printf(format,##__VA_ARGS__)
|
|
|
|
#define DBG(format,...)
|
|
|
|
|
|
void init_loader(void *libc_image);
|
|
void* create_image(void *raw);
|
|
int link_image(void *img_base, PIMAGE_IMPORT_DESCRIPTOR imp);
|
|
|
|
extern char* __appenv;
|
|
extern int __appenv_size;
|
|
|
|
typedef struct tag_module module_t;
|
|
|
|
struct app_hdr
|
|
{
|
|
char banner[8];
|
|
int version;
|
|
int start;
|
|
int iend;
|
|
int memsize;
|
|
int stacktop;
|
|
char *cmdline;
|
|
char *path;
|
|
int reserved;
|
|
void *__idata_start;
|
|
void *__idata_end;
|
|
void (*main)(int argc, char **argv, char **envp);
|
|
};
|
|
|
|
struct tag_module
|
|
{
|
|
struct list_head list;
|
|
|
|
char *img_name;
|
|
char *img_path;
|
|
|
|
uint32_t refcount;
|
|
|
|
void *start;
|
|
uint32_t end;
|
|
|
|
void *entry;
|
|
|
|
PIMAGE_NT_HEADERS32 img_hdr;
|
|
PIMAGE_SECTION_HEADER img_sec;
|
|
PIMAGE_EXPORT_DIRECTORY img_exp;
|
|
};
|
|
|
|
typedef struct
|
|
{
|
|
struct list_head list;
|
|
char *path;
|
|
int path_len;
|
|
}dll_path_t;
|
|
|
|
module_t* load_library(const char *name);
|
|
|
|
LIST_HEAD(path_list);
|
|
|
|
static module_t libc_dll;
|
|
static char libc_name[] = "libc.dll";
|
|
static char libc_path[] = "/KolibriOS/lib/libc.dll";
|
|
|
|
static inline int IsPowerOf2(uint32_t val)
|
|
{
|
|
if(val == 0)
|
|
return 0;
|
|
return (val & (val - 1)) == 0;
|
|
}
|
|
|
|
|
|
int validate_pe(void *raw, size_t raw_size, int is_exec)
|
|
{
|
|
PIMAGE_DOS_HEADER dos;
|
|
PIMAGE_NT_HEADERS32 nt;
|
|
|
|
dos = (PIMAGE_DOS_HEADER)raw;
|
|
|
|
if( !raw || raw_size < sizeof(IMAGE_DOS_HEADER) )
|
|
return 0;
|
|
|
|
if( dos->e_magic != IMAGE_DOS_SIGNATURE || dos->e_lfanew <= 0)
|
|
return 0;
|
|
|
|
nt = MakePtr( PIMAGE_NT_HEADERS32, dos, dos->e_lfanew);
|
|
|
|
if( (uint32_t)nt < (uint32_t)raw)
|
|
return 0;
|
|
|
|
if(nt->Signature != IMAGE_NT_SIGNATURE)
|
|
return 0;
|
|
|
|
if(nt->FileHeader.Machine != IMAGE_FILE_MACHINE_I386)
|
|
return 0;
|
|
|
|
if(is_exec && (nt->FileHeader.Characteristics & IMAGE_FILE_DLL))
|
|
return 0;
|
|
|
|
if(nt->OptionalHeader.Magic != IMAGE_NT_OPTIONAL_HDR32_MAGIC)
|
|
return 0;
|
|
|
|
if( is_exec && nt->OptionalHeader.ImageBase != 0)
|
|
return 0;
|
|
|
|
if(nt->OptionalHeader.SectionAlignment < 4096)
|
|
{
|
|
if(nt->OptionalHeader.FileAlignment != nt->OptionalHeader.SectionAlignment)
|
|
return 0;
|
|
}
|
|
else if(nt->OptionalHeader.SectionAlignment < nt->OptionalHeader.FileAlignment)
|
|
return 0;
|
|
|
|
if(!IsPowerOf2(nt->OptionalHeader.SectionAlignment) ||
|
|
!IsPowerOf2(nt->OptionalHeader.FileAlignment))
|
|
return 0;
|
|
|
|
if(nt->FileHeader.NumberOfSections > 96)
|
|
return 0;
|
|
|
|
return 1;
|
|
}
|
|
|
|
|
|
void init_loader(void *libc_image)
|
|
{
|
|
|
|
PIMAGE_DOS_HEADER dos;
|
|
PIMAGE_NT_HEADERS32 nt;
|
|
PIMAGE_EXPORT_DIRECTORY exp;
|
|
|
|
struct app_hdr *header = NULL;
|
|
dll_path_t *path;
|
|
int len;
|
|
char *p;
|
|
|
|
#if 0
|
|
|
|
if(__appenv_size)
|
|
{
|
|
char *env;
|
|
env = envz_get(__appenv, __appenv_size, "PATH");
|
|
if( env )
|
|
{
|
|
while( *env )
|
|
{
|
|
p = env;
|
|
while(*p)
|
|
{
|
|
if( *p == 0x0D)
|
|
break;
|
|
else if( *p == 0x0A)
|
|
break;
|
|
else if( *p == ':')
|
|
break;
|
|
p++;
|
|
};
|
|
len = p-env;
|
|
if(len)
|
|
{
|
|
char *p1;
|
|
|
|
p1 = (char*)malloc(len+1);
|
|
memcpy(p1, env, len);
|
|
p1[len]=0;
|
|
|
|
path = (dll_path_t*)malloc(sizeof(dll_path_t));
|
|
INIT_LIST_HEAD(&path->list);
|
|
path->path = p1;
|
|
path->path_len = len;
|
|
DBG("add libraries path %s\n", path->path);
|
|
list_add_tail(&path->list, &path_list);
|
|
};
|
|
if(*p == ':')
|
|
{
|
|
env = p+1;
|
|
continue;
|
|
}
|
|
else break;
|
|
};
|
|
};
|
|
};
|
|
#endif
|
|
|
|
len = strrchr(header->path, '/') - header->path+1;
|
|
p = (char*)malloc(len+1);
|
|
memcpy(p, header->path, len);
|
|
p[len]=0;
|
|
|
|
path = (dll_path_t*)malloc(sizeof(dll_path_t));
|
|
INIT_LIST_HEAD(&path->list);
|
|
path->path = p;
|
|
path->path_len = len;
|
|
DBG("add libraries path %s\n", path->path);
|
|
list_add_tail(&path->list, &path_list);
|
|
|
|
|
|
path = (dll_path_t*)malloc(sizeof(dll_path_t));
|
|
INIT_LIST_HEAD(&path->list);
|
|
path->path = "/kolibrios/lib/";
|
|
path->path_len = 15; /* FIXME */
|
|
DBG("add libraries path %s\n", path->path);
|
|
list_add_tail(&path->list, &path_list);
|
|
|
|
INIT_LIST_HEAD(&libc_dll.list);
|
|
|
|
libc_dll.img_name = libc_name;
|
|
libc_dll.img_path = libc_path;
|
|
|
|
libc_dll.refcount = 1;
|
|
|
|
dos = (PIMAGE_DOS_HEADER)libc_image;
|
|
nt = MakePtr( PIMAGE_NT_HEADERS32, dos, dos->e_lfanew);
|
|
exp = MakePtr(PIMAGE_EXPORT_DIRECTORY, libc_image,
|
|
nt->OptionalHeader.DataDirectory[0].VirtualAddress);
|
|
|
|
libc_dll.start = libc_image;
|
|
libc_dll.end = MakePtr(uint32_t,libc_image, nt->OptionalHeader.SizeOfImage);
|
|
|
|
libc_dll.img_hdr = nt;
|
|
libc_dll.img_sec = MakePtr(PIMAGE_SECTION_HEADER,nt, sizeof(IMAGE_NT_HEADERS32));
|
|
libc_dll.img_exp = MakePtr(PIMAGE_EXPORT_DIRECTORY,libc_image,
|
|
nt->OptionalHeader.DataDirectory[0].VirtualAddress);
|
|
|
|
};
|
|
|
|
static inline void sec_copy(void *dst, void *src, size_t len)
|
|
{
|
|
__asm__ __volatile__ (
|
|
"shrl $2, %%ecx \n\t"
|
|
"rep movsl"
|
|
:
|
|
:"c"(len),"S"(src),"D"(dst)
|
|
:"cc");
|
|
__asm__ __volatile__ (
|
|
""
|
|
:::"ecx","esi","edi");
|
|
};
|
|
|
|
|
|
void* create_image(void *raw)
|
|
{
|
|
PIMAGE_DOS_HEADER dos;
|
|
PIMAGE_NT_HEADERS32 nt;
|
|
PIMAGE_SECTION_HEADER img_sec;
|
|
|
|
void *img_base;
|
|
uint32_t sec_align;
|
|
int i;
|
|
|
|
dos = (PIMAGE_DOS_HEADER)raw;
|
|
nt = MakePtr( PIMAGE_NT_HEADERS32, dos, dos->e_lfanew);
|
|
|
|
img_base = user_alloc(nt->OptionalHeader.SizeOfImage);
|
|
|
|
if(unlikely(img_base == NULL))
|
|
return 0;
|
|
|
|
sec_copy(img_base, raw, nt->OptionalHeader.SizeOfHeaders);
|
|
|
|
img_sec = MakePtr(PIMAGE_SECTION_HEADER, nt, sizeof(IMAGE_NT_HEADERS32));
|
|
|
|
sec_align = nt->OptionalHeader.SectionAlignment;
|
|
|
|
for(i=0; i< nt->FileHeader.NumberOfSections; i++)
|
|
{
|
|
void *src_ptr;
|
|
void *dest_ptr;
|
|
size_t sec_size;
|
|
|
|
if ( img_sec->SizeOfRawData && img_sec->PointerToRawData )
|
|
{
|
|
src_ptr = MakePtr(void*, raw, img_sec->PointerToRawData);
|
|
dest_ptr = MakePtr(void*, img_base, img_sec->VirtualAddress);
|
|
sec_copy(dest_ptr, src_ptr, img_sec->SizeOfRawData);
|
|
};
|
|
|
|
img_sec++;
|
|
};
|
|
|
|
if(nt->OptionalHeader.DataDirectory[5].Size)
|
|
{
|
|
PIMAGE_BASE_RELOCATION reloc;
|
|
|
|
uint32_t delta = (uint32_t)img_base - nt->OptionalHeader.ImageBase;
|
|
|
|
reloc = MakePtr(PIMAGE_BASE_RELOCATION, img_base,
|
|
nt->OptionalHeader.DataDirectory[5].VirtualAddress);
|
|
|
|
while ( reloc->SizeOfBlock != 0 )
|
|
{
|
|
uint32_t cnt;
|
|
uint16_t *entry;
|
|
uint16_t reltype;
|
|
uint32_t offs;
|
|
|
|
cnt = (reloc->SizeOfBlock - sizeof(*reloc))/sizeof(uint16_t);
|
|
entry = MakePtr( uint16_t*, reloc, sizeof(*reloc) );
|
|
|
|
for ( i=0; i < cnt; i++ )
|
|
{
|
|
uint16_t *p16;
|
|
uint32_t *p32;
|
|
|
|
reltype = (*entry & 0xF000) >> 12;
|
|
offs = (*entry & 0x0FFF) + reloc->VirtualAddress;
|
|
switch(reltype)
|
|
{
|
|
case 1:
|
|
p16 = MakePtr(uint16_t*, img_base, offs);
|
|
*p16+= (uint16_t)(delta>>16);
|
|
break;
|
|
case 2:
|
|
p16 = MakePtr(uint16_t*, img_base, offs);
|
|
*p16+= (uint16_t)delta;
|
|
break;
|
|
case 3:
|
|
p32 = MakePtr(uint32_t*, img_base, offs);
|
|
*p32+= delta;
|
|
}
|
|
entry++;
|
|
}
|
|
reloc = MakePtr(PIMAGE_BASE_RELOCATION, reloc,reloc->SizeOfBlock);
|
|
}
|
|
};
|
|
return img_base;
|
|
};
|
|
|
|
//static jmp_buf loader_env;
|
|
//static loader_recursion;
|
|
|
|
int link_image(void *img_base, PIMAGE_IMPORT_DESCRIPTOR imp)
|
|
{
|
|
static jmp_buf loader_env;
|
|
static recursion = -1;
|
|
int warn = 0;
|
|
|
|
recursion++;
|
|
if( !recursion )
|
|
{
|
|
if( unlikely(setjmp(loader_env) != 0))
|
|
{
|
|
recursion = -1;
|
|
return 0;
|
|
};
|
|
};
|
|
|
|
while ( imp->Name )
|
|
{
|
|
PIMAGE_DOS_HEADER expdos;
|
|
PIMAGE_NT_HEADERS32 expnt;
|
|
PIMAGE_EXPORT_DIRECTORY exp;
|
|
PIMAGE_THUNK_DATA32 thunk;
|
|
|
|
void **iat;
|
|
char *libname;
|
|
uint32_t *exp_functions;
|
|
uint16_t *exp_ordinals;
|
|
char **exp_names;
|
|
|
|
const module_t *api;
|
|
|
|
libname=MakePtr(char*,imp->Name, img_base);
|
|
|
|
DBG("import from %s\n",libname);
|
|
|
|
api = load_library(libname);
|
|
if(unlikely(api == NULL))
|
|
{
|
|
printf("library %s not found\n", libname);
|
|
longjmp(loader_env, 1);
|
|
}
|
|
|
|
iat = MakePtr(void**,imp->FirstThunk, img_base);
|
|
|
|
if(imp->OriginalFirstThunk !=0 )
|
|
{
|
|
thunk = MakePtr(PIMAGE_THUNK_DATA32,imp->OriginalFirstThunk, img_base);
|
|
}
|
|
else
|
|
{
|
|
thunk = MakePtr(PIMAGE_THUNK_DATA32,imp->FirstThunk, img_base);
|
|
};
|
|
|
|
exp = api->img_exp;
|
|
|
|
exp_functions = MakePtr(uint32_t*,exp->AddressOfFunctions,api->start);
|
|
exp_ordinals = MakePtr(uint16_t*, exp->AddressOfNameOrdinals,api->start);
|
|
exp_names = MakePtr(char**, exp->AddressOfNames,api->start);
|
|
|
|
while ( thunk->u1.AddressOfData != 0 )
|
|
{
|
|
PIMAGE_IMPORT_BY_NAME imp_name;
|
|
|
|
if (thunk->u1.Ordinal & IMAGE_ORDINAL_FLAG)
|
|
{
|
|
// ordinal = (*func_list) & 0x7fffffff;
|
|
// *ImportAddressList = LdrGetExportByOrdinal(ImportedModule->DllBase, Ordinal);
|
|
// if ((*ImportAddressList) == NULL)
|
|
// {
|
|
// DPRINT1("Failed to import #%ld from %wZ\n", Ordinal, &ImportedModule->FullDllName);
|
|
// RtlpRaiseImportNotFound(NULL, Ordinal, &ImportedModule->FullDllName);
|
|
// return STATUS_ENTRYPOINT_NOT_FOUND;
|
|
// }
|
|
}
|
|
else
|
|
{
|
|
char *export_name;
|
|
uint16_t ordinal;
|
|
void *function;
|
|
uint32_t minn;
|
|
uint32_t maxn;
|
|
|
|
imp_name = MakePtr(PIMAGE_IMPORT_BY_NAME,
|
|
thunk->u1.AddressOfData, img_base);
|
|
*iat = NULL;
|
|
|
|
DBG("import %s", imp_name->Name);
|
|
|
|
if(imp_name->Hint < exp->NumberOfNames)
|
|
{
|
|
export_name = MakePtr(char*,exp_names[imp_name->Hint],
|
|
api->start);
|
|
if(strcmp(imp_name->Name, export_name) == 0)
|
|
{
|
|
ordinal = exp_ordinals[imp_name->Hint];
|
|
function = MakePtr(void*,exp_functions[ordinal], api->start);
|
|
if((uint32_t)function >= (uint32_t)exp)
|
|
{
|
|
printf("forward %s\n", function);
|
|
warn=1;
|
|
}
|
|
else
|
|
{
|
|
DBG(" \t\tat %x\n", function);
|
|
*iat = function;
|
|
};
|
|
thunk++; // Advance to next thunk
|
|
iat++;
|
|
continue;
|
|
};
|
|
};
|
|
|
|
|
|
minn = 0;
|
|
maxn = exp->NumberOfNames - 1;
|
|
while (minn <= maxn)
|
|
{
|
|
int mid;
|
|
int res;
|
|
|
|
mid = (minn + maxn) / 2;
|
|
|
|
export_name = MakePtr(char*,exp_names[mid],api->start);
|
|
|
|
res = strcmp(export_name, imp_name->Name);
|
|
if (res == 0)
|
|
{
|
|
ordinal = exp_ordinals[mid];
|
|
function = MakePtr(void*,exp_functions[ordinal], api->start);
|
|
|
|
if((uint32_t)function >= (uint32_t)exp)
|
|
{
|
|
printf("forward %s\n", function);
|
|
warn=1;
|
|
}
|
|
else
|
|
{
|
|
DBG(" \t\tat %x\n", function);
|
|
*iat = function;
|
|
};
|
|
break;
|
|
}
|
|
else if (minn == maxn)
|
|
{
|
|
printf(" unresolved %s\n",imp_name->Name);
|
|
warn=1;
|
|
break;
|
|
}
|
|
else if (res > 0)
|
|
{
|
|
maxn = mid - 1;
|
|
}
|
|
else
|
|
{
|
|
minn = mid + 1;
|
|
}
|
|
};
|
|
};
|
|
thunk++; // Advance to next thunk
|
|
iat++;
|
|
}
|
|
imp++; // advance to next IMAGE_IMPORT_DESCRIPTOR
|
|
};
|
|
|
|
recursion--;
|
|
|
|
if ( !warn )
|
|
return 1;
|
|
else
|
|
return 0;
|
|
}
|
|
|
|
int link_app()
|
|
{
|
|
struct app_hdr *header = NULL;
|
|
PIMAGE_IMPORT_DESCRIPTOR imp;
|
|
|
|
imp = (PIMAGE_IMPORT_DESCRIPTOR)header->__idata_start;
|
|
|
|
return link_image(NULL, imp);
|
|
|
|
}
|
|
|
|
|
|
void* get_entry_point(void *raw)
|
|
{
|
|
PIMAGE_DOS_HEADER dos;
|
|
PIMAGE_NT_HEADERS32 nt;
|
|
|
|
dos = (PIMAGE_DOS_HEADER)raw;
|
|
nt = MakePtr( PIMAGE_NT_HEADERS32, dos, dos->e_lfanew);
|
|
|
|
return MakePtr(void*, raw, nt->OptionalHeader.AddressOfEntryPoint);
|
|
};
|
|
|
|
|
|
void *get_proc_address(module_t *module, char *proc_name)
|
|
{
|
|
|
|
PIMAGE_DOS_HEADER expdos;
|
|
PIMAGE_NT_HEADERS32 expnt;
|
|
PIMAGE_EXPORT_DIRECTORY exp;
|
|
|
|
uint32_t *exp_functions;
|
|
uint16_t *exp_ordinals;
|
|
char **exp_names;
|
|
|
|
int minn, maxn;
|
|
char *export_name;
|
|
uint16_t ordinal;
|
|
void *function=NULL;
|
|
|
|
exp = module->img_exp;
|
|
|
|
exp_functions = MakePtr(uint32_t*,exp->AddressOfFunctions,module->start);
|
|
exp_ordinals = MakePtr(uint16_t*, exp->AddressOfNameOrdinals,module->start);
|
|
exp_names = MakePtr(char**, exp->AddressOfNames,module->start);
|
|
|
|
minn = 0;
|
|
maxn = exp->NumberOfNames - 1;
|
|
while (minn <= maxn)
|
|
{
|
|
int mid;
|
|
int res;
|
|
|
|
mid = (minn + maxn) / 2;
|
|
|
|
export_name = MakePtr(char*,exp_names[mid],module->start);
|
|
|
|
res = strcmp(export_name, proc_name);
|
|
if (res == 0)
|
|
{
|
|
ordinal = exp_ordinals[mid];
|
|
function = MakePtr(void*,exp_functions[ordinal], module->start);
|
|
|
|
if((uint32_t)function >= (uint32_t)exp)
|
|
{
|
|
printf("forward %s\n", function);
|
|
}
|
|
else
|
|
{
|
|
DBG(" \t\tat %x\n", function);
|
|
};
|
|
break;
|
|
}
|
|
else if (minn == maxn)
|
|
{
|
|
DBG(" unresolved %s\n",proc_name);
|
|
break;
|
|
}
|
|
else if (res > 0)
|
|
{
|
|
maxn = mid - 1;
|
|
}
|
|
else
|
|
{
|
|
minn = mid + 1;
|
|
}
|
|
};
|
|
|
|
return function;
|
|
};
|
|
|
|
static void *load_lib_internal(const char *path)
|
|
{
|
|
PIMAGE_DOS_HEADER dos;
|
|
PIMAGE_NT_HEADERS32 nt;
|
|
PIMAGE_EXPORT_DIRECTORY exp;
|
|
|
|
ufile_t uf;
|
|
void *raw_img;
|
|
size_t raw_size;
|
|
void *img_base = NULL;
|
|
|
|
uf = load_file(path);
|
|
raw_img = uf.data;
|
|
raw_size = uf.size;
|
|
|
|
if(raw_img == NULL)
|
|
return NULL;
|
|
|
|
if( validate_pe(raw_img, raw_size, 0) == 0)
|
|
{
|
|
printf("invalide module %s\n", path);
|
|
user_free(raw_img);
|
|
return NULL;
|
|
};
|
|
|
|
img_base = create_image(raw_img);
|
|
user_free(raw_img);
|
|
|
|
if( unlikely(img_base == NULL) )
|
|
printf("cannot create image %s\n",path);
|
|
|
|
return img_base;
|
|
}
|
|
|
|
module_t* load_library(const char *name)
|
|
{
|
|
PIMAGE_DOS_HEADER dos;
|
|
PIMAGE_NT_HEADERS32 nt;
|
|
PIMAGE_EXPORT_DIRECTORY exp;
|
|
|
|
module_t *module, *mod = &libc_dll;
|
|
dll_path_t *dllpath;
|
|
char *path;
|
|
int len;
|
|
char *libname, *tmp;
|
|
void *img_base;
|
|
|
|
|
|
/* check for already loaded libraries */
|
|
|
|
tmp = strrchr(name, '/');
|
|
libname = path = tmp != NULL ? tmp+1 : (char*)name;
|
|
|
|
// printf("path %s\n", path);
|
|
|
|
do
|
|
{
|
|
if( !strncmp(path, mod->img_name, 16))
|
|
return mod;
|
|
mod = (module_t*)mod->list.next;
|
|
}while(mod != &libc_dll);
|
|
|
|
if(name[0] == '/')
|
|
{
|
|
path = (char*)name;
|
|
img_base = load_lib_internal(path);
|
|
}
|
|
else
|
|
{
|
|
len = strlen(libname);
|
|
list_for_each_entry(dllpath, &path_list, list)
|
|
{
|
|
path = alloca(len+dllpath->path_len+1);
|
|
memcpy(path, dllpath->path, dllpath->path_len);
|
|
|
|
memcpy(path+dllpath->path_len, libname, len);
|
|
path[len+dllpath->path_len]=0;
|
|
|
|
// printf("%s\n", path);
|
|
|
|
img_base = load_lib_internal(path);
|
|
|
|
if( unlikely(img_base == NULL) )
|
|
continue;
|
|
};
|
|
}
|
|
|
|
if( unlikely(img_base == NULL) )
|
|
{
|
|
printf("unable to load %s\n", name);
|
|
return NULL;
|
|
};
|
|
|
|
module = (module_t*)malloc(sizeof(module_t));
|
|
|
|
if(unlikely(module == NULL))
|
|
{
|
|
printf("%s epic fail: no enough memory\n",__FUNCTION__);
|
|
goto err1;
|
|
}
|
|
|
|
INIT_LIST_HEAD(&module->list);
|
|
|
|
module->img_name = strdup(libname);
|
|
module->img_path = strdup(path);
|
|
module->start = img_base;
|
|
module->entry = get_entry_point(img_base);
|
|
module->refcount = 1;
|
|
|
|
dos = (PIMAGE_DOS_HEADER)img_base;
|
|
nt = MakePtr( PIMAGE_NT_HEADERS32, dos, dos->e_lfanew);
|
|
exp = MakePtr(PIMAGE_EXPORT_DIRECTORY, img_base,
|
|
nt->OptionalHeader.DataDirectory[0].VirtualAddress);
|
|
|
|
module->end = MakePtr(uint32_t,img_base, nt->OptionalHeader.SizeOfImage);
|
|
|
|
module->img_hdr = nt;
|
|
module->img_sec = MakePtr(PIMAGE_SECTION_HEADER,nt, sizeof(IMAGE_NT_HEADERS32));
|
|
module->img_exp = MakePtr(PIMAGE_EXPORT_DIRECTORY, img_base,
|
|
nt->OptionalHeader.DataDirectory[0].VirtualAddress);
|
|
|
|
list_add_tail(&module->list, &libc_dll.list);
|
|
|
|
if(nt->OptionalHeader.DataDirectory[1].Size)
|
|
{
|
|
PIMAGE_IMPORT_DESCRIPTOR imp;
|
|
int (*dll_startup)(module_t *mod, uint32_t reason);
|
|
|
|
imp = MakePtr(PIMAGE_IMPORT_DESCRIPTOR, img_base,
|
|
nt->OptionalHeader.DataDirectory[1].VirtualAddress);
|
|
|
|
if(link_image(img_base, imp) == 0)
|
|
goto err2;
|
|
|
|
dll_startup = get_proc_address(module, "DllStartup");
|
|
if( dll_startup )
|
|
{
|
|
if( 0 == dll_startup(module, 1))
|
|
goto err2;
|
|
}
|
|
};
|
|
|
|
return module;
|
|
|
|
err2:
|
|
list_del(&module->list);
|
|
free(module->img_name);
|
|
free(module->img_path);
|
|
free(module);
|
|
err1:
|
|
user_free(img_base);
|
|
return NULL;
|
|
|
|
};
|
|
|
|
|