forked from KolibriOS/kolibrios
672 lines
18 KiB
C
672 lines
18 KiB
C
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#include <types.h>
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#include <core.h>
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#include <spinlock.h>
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#include <link.h>
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#include <mm.h>
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#include <slab.h>
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#include <pe.h>
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#pragma pack(push,4)
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typedef struct
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{
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char app_name[16];
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addr_t fpu_state; /* +16 */
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count_t ev_count; /* +20 */
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addr_t fpu_handler; /* +24 */
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addr_t sse_handler; /* +28 */
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addr_t pl0_stack; /* +32 */
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addr_t heap_base; /* +36 */
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addr_t heap_top; /* +40 */
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addr_t cursor; /* +44 */
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addr_t fd_ev; /* +48 */
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addr_t bk_ev; /* +52 */
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addr_t fd_obj; /* +56 */
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addr_t bk_obj; /* +60 */
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addr_t saved_esp; /* +64 */
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addr_t io_map[2]; /* +68 */
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u32_t dbg_state; /* +76 */
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char *cur_dir; /* +80 */
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count_t wait_timeout; /* +84 */
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addr_t saved_esp0; /* +88 */
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link_t dll_list; /* +92 */
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u32_t reserved0[7]; /* +100 db 28 dup(?) */
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addr_t wnd_shape; /* +128 */
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u32_t wnd_shape_scale; /* +132 */
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u32_t reserved1; /* +136 */
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size_t mem_size; /* +140 */
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}appdata_t;
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#pragma pack(pop)
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extern appdata_t *current_slot;
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bool link_pe(addr_t img_base);
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int __stdcall strncmp(const char *s1, const char *s2, size_t n);
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extern int __stdcall mnt_exec(void *raw, size_t raw_size, char *path,
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char *cmdline, u32_t flags) asm ("mnt_exec");
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dll_t core_dll;
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slab_cache_t *dll_slab;
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static char* strupr(char *str )
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{
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char *p;
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unsigned char c;
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p = str;
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while( (c = *p) )
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{
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if( c >= 'a' && c <= 'z' )
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*p = c - 'a' + 'A';
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++p;
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}
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return( str );
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}
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void * memcpy(void * _dest, const void *_src, size_t _n)
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{
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int d0, d1, d2;
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__asm__ __volatile__(
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"rep ; movsl\n\t"
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"testb $2,%b4\n\t"
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"je 1f\n\t"
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"movsw\n"
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"1:\ttestb $1,%b4\n\t"
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"je 2f\n\t"
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"movsb\n"
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"2:"
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: "=&c" (d0), "=&D" (d1), "=&S" (d2)
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:"0" (_n/4), "q" (_n),"1" ((long)_dest),"2" ((long)_src)
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: "memory");
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return (_dest);
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}
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size_t strlen(const char *str)
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{
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int d0;
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register int __res;
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__asm__ __volatile__(
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"repne\n\t"
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"scasb\n\t"
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"notl %0\n\t"
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"decl %0"
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:"=c" (__res), "=&D" (d0) :"1" (str),"a" (0), "0" (0xffffffff));
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return __res;
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}
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void init_core_dll()
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{
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PIMAGE_DOS_HEADER dos;
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PIMAGE_NT_HEADERS32 nt;
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PIMAGE_EXPORT_DIRECTORY exp;
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dos = (PIMAGE_DOS_HEADER)LOAD_BASE;
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nt = MakePtr( PIMAGE_NT_HEADERS32, dos, dos->e_lfanew);
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exp = MakePtr(PIMAGE_EXPORT_DIRECTORY,LOAD_BASE,
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nt->OptionalHeader.DataDirectory[0].VirtualAddress);
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list_initialize(&core_dll.link);
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core_dll.img_base = LOAD_BASE;
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core_dll.img_size = nt->OptionalHeader.SizeOfImage;
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core_dll.img_md = NULL;
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core_dll.img_hdr = nt;
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core_dll.img_sec = MakePtr(PIMAGE_SECTION_HEADER,nt, sizeof(IMAGE_NT_HEADERS32));
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core_dll.img_exp = MakePtr(PIMAGE_EXPORT_DIRECTORY,LOAD_BASE,
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nt->OptionalHeader.DataDirectory[0].VirtualAddress);
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core_dll.img_name = strupr(MakePtr(char*, LOAD_BASE, exp->Name));
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dll_slab = slab_cache_create(sizeof(dll_t), 16,NULL,NULL,SLAB_CACHE_MAGDEFERRED);
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DBG("%s base %x size %x sections %d exports %x\n",
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core_dll.img_name, core_dll.img_base,
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core_dll.img_size, nt->FileHeader.NumberOfSections,
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core_dll.img_exp );
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};
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dll_t * find_dll(link_t *list, const char *name)
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{
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dll_t* dll = (dll_t*)list;
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do
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{
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if( !strncmp(name,dll->img_name,16))
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return dll;
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dll = (dll_t*)dll->link.next;
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}while(&dll->link != list);
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return NULL;
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};
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typedef struct
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{
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char srv_name[16]; // ASCIIZ string
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u32_t magic; // +0x10 'SRV '
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size_t size; // +0x14 size of structure SRV
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void *fd; // +0x18 next SRV descriptor
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void *bk; // +0x1C prev SRV descriptor
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addr_t base; // +0x20 service base address
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addr_t entry; // +0x24 service START function
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void *srv_proc; // +0x28 main service handler
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}srv_t;
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typedef srv_t* __stdcall drv_entry_t(int);
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srv_t* __fastcall load_pe_driver(const char *path)
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{
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PIMAGE_DOS_HEADER dos;
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PIMAGE_NT_HEADERS32 nt;
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drv_entry_t *drv_entry;
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md_t *md;
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srv_t *srv;
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md = load_image(path);
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if( ! md )
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return 0;
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if( link_image( md->base ) )
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{
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dos = (PIMAGE_DOS_HEADER)md->base;
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nt = MakePtr( PIMAGE_NT_HEADERS32, dos, dos->e_lfanew);
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drv_entry = MakePtr(drv_entry_t*, md->base,
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nt->OptionalHeader.AddressOfEntryPoint);
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srv = drv_entry(1);
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if(srv != NULL)
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srv->entry = nt->OptionalHeader.AddressOfEntryPoint + md->base;
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return srv;
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}
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else
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{
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md_free( md );
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return NULL;
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}
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}
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typedef struct
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{
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int a_type;
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union
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{
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long a_val;
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void *a_ptr;
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void (*a_fcn)( ) ;
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}a_un;
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}auxv_t;
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#define AUX_COUNT 0
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typedef struct
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{
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int argc; /* always 2 */
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char *path; /* argv[0] program path */
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char *cmdline; /* argv[1] command line. May be null */
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u32_t sep1; /* separator. must be zero */
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char *env; /* single environment string */
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u32_t sep2; /* separator. must be zero */
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auxv_t aux[1]; /* aux. AT_NULL for now */
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}exec_stack_t;
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addr_t __fastcall pe_app_space(size_t size);
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int __stdcall pe_app_param(char *path, void *raw, addr_t ex_pg_dir,
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exec_stack_t *ex_stack) asm ("pe_app_param");
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int sys_exec(char *path, char *cmdline, u32_t flags)
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{
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PIMAGE_DOS_HEADER dos;
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PIMAGE_NT_HEADERS32 nt;
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size_t img_size;
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count_t img_pages;
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count_t img_tabs;
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addr_t ex_pg_dir;
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addr_t ex_stack_page;
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addr_t ex_pl0_stack;
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exec_stack_t *ex_stack;
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int stack_size;
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char *ex_path;
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char *ex_cmdline = NULL;
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size_t raw_size;
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u32_t *raw;
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int pathsize = 0;
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int cmdsize = 0;
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int envsize = 0;
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u32_t tmp;
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DBG("\nexec %s cmd %s flags %x\n", path, cmdline, flags);
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if( ! path)
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{
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DBG("invalid path\n");
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return;
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};
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raw = load_file(path, &raw_size);
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if( ! raw )
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return -5; /* FIXME */
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if( (raw[0] == 0x554E454D) &&
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( ( raw[1] == 0x31305445) ||
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( raw[1] == 0x30305445) ) )
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{
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DBG("leagacy Kolibri application\n");
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int tmp = mnt_exec(raw, raw_size, path, cmdline, flags);
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return tmp;
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}
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if( ! validate_pe(raw, raw_size) )
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{
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DBG("invalid executable file %s\n", path);
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mem_free(raw);
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return -31;
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}
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pathsize = strlen(path)+1;
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if( cmdline )
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cmdsize = strlen(cmdline)+1;
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stack_size = sizeof(exec_stack_t) + pathsize +
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cmdsize + envsize + AUX_COUNT*sizeof(auxv_t);
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stack_size = (stack_size + 15) & ~15; /* keep stack aligned */
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DBG("stacksize %d\n", stack_size);
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if( stack_size > 4096 )
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{
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DBG("command line too long\n");
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return -30;
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}
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ex_stack_page = core_alloc(0); /* 2^0 = 1 page */
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if( ! ex_stack_page )
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{
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mem_free(raw);
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return -30; /* FIXME */
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};
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dos = (PIMAGE_DOS_HEADER)raw;
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nt = MakePtr( PIMAGE_NT_HEADERS32, dos, dos->e_lfanew);
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img_size = nt->OptionalHeader.SizeOfImage;
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ex_pg_dir = pe_app_space(img_size);
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if( !ex_pg_dir )
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{
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core_free(ex_stack_page);
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mem_free(raw);
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return -30; /* FIXME */
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};
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__asm__ __volatile__ (
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"xorl %%eax, %%eax \n\t"
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"rep stosl"
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:"=c"(tmp),"=D"(tmp)
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:"c"(1024),"D"(ex_stack_page + OS_BASE)
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:"eax","cc");
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ex_stack = (exec_stack_t*)(ex_stack_page + OS_BASE
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+ PAGE_SIZE - stack_size);
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ex_stack->argc = 2;
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ex_path = MakePtr(char*, ex_stack, sizeof(exec_stack_t)+AUX_COUNT*sizeof(auxv_t));
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memcpy(ex_path, path, pathsize);
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ex_stack->path = (char*)(((addr_t)ex_path & 0xFFF) + 0x7FFFF000); /* top of stack */
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if( cmdline )
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{
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ex_cmdline = ex_path + pathsize;
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memcpy(ex_cmdline, cmdline, cmdsize);
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ex_stack->cmdline = ex_stack->path + pathsize;
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};
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/*
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ex_stack.env = null
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ex_stack.aux[0] = AT_NULL
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*/
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DBG("create stack at %x\n\tpath %x\n\tcmdline %x\n",
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ex_stack, ex_stack->path, ex_stack->cmdline);
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pe_app_param(path, raw, ex_pg_dir, ex_stack);
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return 0;
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};
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#define master_tab (page_tabs+ (page_tabs>>10))
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typedef struct
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{
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u32_t edi;
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u32_t esi;
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u32_t ebp;
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u32_t esp;
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u32_t ebx;
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u32_t edx;
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u32_t ecx;
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u32_t eax;
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u32_t eip;
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u32_t cs;
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u32_t eflags;
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u32_t pe_sp;
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u32_t pe_ss;
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}thr_stack_t;
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#define EFL_IF 0x0200
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#define EFL_IOPL1 0x1000
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#define EFL_IOPL2 0x2000
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#define EFL_IOPL3 0x3000
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void sys_app_entry(addr_t raw, thr_stack_t *thr_stack, exec_stack_t *ex_stack)
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{
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PIMAGE_DOS_HEADER dos;
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PIMAGE_NT_HEADERS32 nt;
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size_t img_size;
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count_t img_pages;
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count_t i;
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u32_t tmp;
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__asm__ __volatile__ ("sti");
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dos = (PIMAGE_DOS_HEADER)raw;
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nt = MakePtr( PIMAGE_NT_HEADERS32, dos, dos->e_lfanew);
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img_size = nt->OptionalHeader.SizeOfImage;
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current_slot->mem_size = img_size;
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list_initialize(¤t_slot->dll_list);
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img_pages = img_size >> 12;
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for(i = 0; i < img_pages; i++)
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{
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addr_t page = core_alloc(0);
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((u32_t*)page_tabs)[i] = page | 7; /* FIXME */
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}
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addr_t stack_page = ((addr_t)ex_stack-OS_BASE) & ~4095;
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((u32_t*)page_tabs)[0x7FFFF000>>12] = stack_page | 7;
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create_image(0, raw);
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init_user_heap();
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if (! link_pe(0))
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{
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DBG("\nunresolved imports\nexit\n");
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__asm__ __volatile__ (
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"int $0x40"::"a"(-1));
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};
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// __asm__ __volatile__ (
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// "xchgw %bx, %bx");
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addr_t entry = nt->OptionalHeader.AddressOfEntryPoint +
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nt->OptionalHeader.ImageBase;
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thr_stack->edi = 0;
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thr_stack->esi = 0;
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thr_stack->ebp = 0;
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thr_stack->ebx = 0;
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thr_stack->edx = 0;
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thr_stack->ecx = 0;
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thr_stack->eax = 0;
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thr_stack->eip = entry;
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thr_stack->cs = 0x1b;
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thr_stack->eflags = EFL_IOPL3 | EFL_IF;
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thr_stack->pe_sp = 0x7FFFF000 + ((u32_t)ex_stack & 0xFFF);
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thr_stack->pe_ss = 0x23;
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};
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void* __stdcall user_alloc(size_t size) asm("user_alloc");
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void __stdcall user_free(void *mem) asm("user_free");
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dll_t* __fastcall load_dll(const char *path)
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{
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PIMAGE_DOS_HEADER dos;
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PIMAGE_NT_HEADERS32 nt;
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PIMAGE_EXPORT_DIRECTORY exp;
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md_t *img_md;
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size_t img_size;
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addr_t img_base;
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count_t img_pages;
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size_t raw_size = 0;
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void *raw;
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DBG("\nload dll %s", path);
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raw = load_file(path, &raw_size);
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DBG(" raw = %x\n", raw);
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if( ! raw)
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{
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DBG("file not found: %s\n", path);
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return NULL;
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};
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if( ! validate_pe(raw, raw_size) )
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{
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DBG("invalid pe file %s\n", path);
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mem_free(raw);
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return NULL;
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}
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dos = (PIMAGE_DOS_HEADER)raw;
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nt = MakePtr( PIMAGE_NT_HEADERS32, dos, dos->e_lfanew);
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img_size = nt->OptionalHeader.SizeOfImage;
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img_base = (addr_t)user_alloc(img_size);
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if( !img_base)
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{
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mem_free(raw);
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return NULL;
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};
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dll_t *dll = (dll_t*)slab_alloc(dll_slab,0); /* FIXME check */
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if( !dll)
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{
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mem_free(raw);
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user_free((void*)img_base);
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return NULL;
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};
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create_image(img_base, (addr_t)raw);
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mem_free(raw);
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dos = (PIMAGE_DOS_HEADER)img_base;
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nt = MakePtr( PIMAGE_NT_HEADERS32, dos, dos->e_lfanew);
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exp = MakePtr(PIMAGE_EXPORT_DIRECTORY,img_base,
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nt->OptionalHeader.DataDirectory[0].VirtualAddress);
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dll->img_base = img_base;
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dll->img_size = nt->OptionalHeader.SizeOfImage;
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dll->img_md = NULL;
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dll->img_hdr = nt;
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dll->img_sec = MakePtr(PIMAGE_SECTION_HEADER,nt, sizeof(IMAGE_NT_HEADERS32));
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dll->img_exp = MakePtr(PIMAGE_EXPORT_DIRECTORY,img_base,
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nt->OptionalHeader.DataDirectory[0].VirtualAddress);
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dll->img_name = strupr(MakePtr(char*, img_base, exp->Name));
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list_insert(¤t_slot->dll_list, &dll->link);
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return dll;
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};
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bool link_pe(addr_t img_base)
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{
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PIMAGE_DOS_HEADER dos;
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PIMAGE_NT_HEADERS32 nt;
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char path[128];
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int warn = 0;
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/* assumed that image is valid */
|
|
|
|
dos = (PIMAGE_DOS_HEADER)img_base;
|
|
nt = MakePtr( PIMAGE_NT_HEADERS32, dos, dos->e_lfanew);
|
|
|
|
if(nt->OptionalHeader.DataDirectory[1].Size)
|
|
{
|
|
PIMAGE_IMPORT_DESCRIPTOR imp;
|
|
|
|
imp = MakePtr(PIMAGE_IMPORT_DESCRIPTOR, img_base,
|
|
nt->OptionalHeader.DataDirectory[1].VirtualAddress);
|
|
|
|
while ( 1 )
|
|
{
|
|
PIMAGE_THUNK_DATA32 thunk;
|
|
|
|
PIMAGE_DOS_HEADER expdos;
|
|
PIMAGE_NT_HEADERS32 expnt;
|
|
PIMAGE_EXPORT_DIRECTORY exp;
|
|
|
|
u32_t *iat;
|
|
char *libname;
|
|
addr_t *functions;
|
|
u16_t *ordinals;
|
|
char **funcname;
|
|
|
|
dll_t *exp_dll;
|
|
|
|
if ( (imp->TimeDateStamp==0 ) && (imp->Name==0) )
|
|
break;
|
|
|
|
libname=MakePtr(char*,imp->Name, img_base);
|
|
|
|
DBG("import from %s\n",libname);
|
|
|
|
exp_dll = find_dll(¤t_slot->dll_list, libname);
|
|
if(exp_dll != NULL)
|
|
{
|
|
DBG("find %s\n", exp_dll->img_name);
|
|
}
|
|
else
|
|
{
|
|
int len = strlen(libname)+1;
|
|
|
|
memcpy(path, "/sys/lib/",9);
|
|
memcpy(&path[9],libname,len);
|
|
|
|
exp_dll = load_dll(path);
|
|
if( !exp_dll)
|
|
{
|
|
DBG("can't load %s\n", path);
|
|
return false;
|
|
};
|
|
}
|
|
|
|
exp = exp_dll->img_exp;
|
|
|
|
functions = MakePtr(DWORD*,exp->AddressOfFunctions,exp_dll->img_base);
|
|
ordinals = MakePtr(WORD*, exp->AddressOfNameOrdinals,exp_dll->img_base);
|
|
funcname = MakePtr(char**, exp->AddressOfNames,exp_dll->img_base);
|
|
|
|
thunk = MakePtr(PIMAGE_THUNK_DATA32,
|
|
imp->Characteristics, img_base);
|
|
iat= MakePtr(DWORD*,imp->FirstThunk, img_base);
|
|
|
|
while ( 1 ) // Loop forever (or until we break out)
|
|
{
|
|
PIMAGE_IMPORT_BY_NAME ord;
|
|
addr_t addr;
|
|
|
|
if ( thunk->u1.AddressOfData == 0 )
|
|
break;
|
|
|
|
if ( thunk->u1.Ordinal & IMAGE_ORDINAL_FLAG )
|
|
{
|
|
// printf(" %4u\n", thunk->u1.Ordinal & 0xFFFF);
|
|
break;
|
|
}
|
|
else
|
|
{
|
|
ord = MakePtr(PIMAGE_IMPORT_BY_NAME,
|
|
thunk->u1.AddressOfData, img_base);
|
|
*iat=0;
|
|
|
|
DBG("import %s", ord->Name);
|
|
|
|
if(strncmp(ord->Name,
|
|
MakePtr(char*,funcname[ord->Hint],exp_dll->img_base),32))
|
|
{
|
|
int ind;
|
|
char **names=funcname;
|
|
|
|
for(names = funcname,ind = 0;
|
|
ind < exp->NumberOfNames; names++,ind++)
|
|
{
|
|
if(!strncmp(ord->Name,MakePtr(char*,*names,exp_dll->img_base),32))
|
|
{
|
|
u16_t ordinal;
|
|
ordinal = ordinals[ind];
|
|
DBG(" \t\tat %x\n", functions[ordinal] + exp_dll->img_base);
|
|
*iat = functions[ordinal] + exp_dll->img_base;
|
|
break;
|
|
};
|
|
};
|
|
if(ind == exp->NumberOfNames)
|
|
{
|
|
DBG(" unresolved import %s\n",ord->Name);
|
|
warn=1;
|
|
};
|
|
}
|
|
else
|
|
{
|
|
DBG(" \tat %x\n", functions[ord->Hint] + exp_dll->img_base);
|
|
*iat = functions[ord->Hint] + exp_dll->img_base;
|
|
};
|
|
};
|
|
thunk++; // Advance to next thunk
|
|
iat++;
|
|
}
|
|
imp++; // advance to next IMAGE_IMPORT_DESCRIPTOR
|
|
};
|
|
};
|
|
|
|
if ( !warn )
|
|
return true;
|
|
else
|
|
return false;
|
|
}
|
|
|