/*- * Copyright (c) 2015 Kai Wang * 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. * * THIS SOFTWARE IS PROVIDED BY THE AUTHOR 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 THE AUTHOR OR CONTRIBUTORS 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. * * $Id: _libpe.h 3312 2016-01-10 09:23:51Z kaiwang27 $ */ #ifndef __LIBPE_H_ #define __LIBPE_H_ #include #include #include "libpe.h" #include "_elftc.h" typedef struct _PE_SecBuf { PE_Buffer sb_pb; /* application buffer */ PE_Scn *sb_ps; /* PE_Scn pointer */ unsigned int sb_flags; /* buffer flags */ STAILQ_ENTRY(_PE_SecBuf) sb_next; } PE_SecBuf; struct _PE_Scn { PE *ps_pe; /* PE descriptor */ PE_SecHdr ps_sh; /* section header */ unsigned int ps_ndx; /* 1-based section index */ unsigned int ps_flags; /* section flags */ unsigned int ps_falign; /* section file alignment */ STAILQ_HEAD(, _PE_SecBuf) ps_b; /* buffer list */ STAILQ_ENTRY(_PE_Scn) ps_next; }; struct _PE { int pe_fd; /* file descriptor */ PE_Cmd pe_cmd; /* open mode */ PE_Object pe_obj; /* PE32/PE32+/COFF */ size_t pe_fsize; /* file size */ unsigned int pe_flags; /* library flags */ PE_DosHdr *pe_dh; /* MS-DOS header */ char *pe_stub; /* MS-DOS stub */ size_t pe_stub_ex; /* MS-DOS stub len (exclude hdr) */ char *pe_stub_app; /* MS-DOS stub (app supplied) */ size_t pe_stub_app_sz; /* MS-DOS stub len (app supplied) */ PE_RichHdr *pe_rh; /* rich header */ char *pe_rh_start; /* pointer to rich header */ PE_CoffHdr *pe_ch; /* COFF header */ PE_OptHdr *pe_oh; /* optional header */ PE_DataDir *pe_dd; /* data directories */ unsigned int pe_nscn; /* num. of sections */ char *pe_symtab; /* COFF symbol table */ size_t pe_symbtab_sz; /* size of symbol table */ unsigned int pe_nsym; /* num. of symbols */ unsigned int pe_rvamax; /* maximum RVA */ STAILQ_HEAD(, _PE_Scn) pe_scn; /* section list */ }; /* Library internal flags */ #define LIBPE_F_API_MASK 0x000FFFU #define LIBPE_F_SPECIAL_FILE 0x001000U #define LIBPE_F_BAD_DOS_HEADER 0x002000U #define LIBPE_F_BAD_PE_HEADER 0x004000U #define LIBPE_F_BAD_COFF_HEADER 0x008000U #define LIBPE_F_BAD_OPT_HEADER 0x010000U #define LIBPE_F_BAD_SEC_HEADER 0x020000U #define LIBPE_F_LOAD_DOS_STUB 0x040000U #define LIBPE_F_FD_DONE 0x080000U #define LIBPE_F_DIRTY_DOS_HEADER 0x100000U #define LIBPE_F_DIRTY_COFF_HEADER 0x200000U #define LIBPE_F_DIRTY_OPT_HEADER 0x400000U #define LIBPE_F_DIRTY_SEC_HEADER 0x800000U /* Internal section flags */ #define LIBPE_F_LOAD_SECTION 0x1000U #define LIBPE_F_STRIP_SECTION 0x2000U /* Internal buffer flags */ #define LIBPE_F_BUFFER_MALLOCED 0x1000U /* Library internal defines */ #define PE_DOS_MAGIC 0x5a4dU #define PE_RICH_TEXT "Rich" #define PE_RICH_HIDDEN 0x536e6144U /* DanS */ #define PE_SIGNATURE 0x4550U /* PE\0\0 */ #define PE_COFF_OPT_SIZE_32 224 #define PE_COFF_OPT_SIZE_32P 240 #define PE_SYM_ENTRY_SIZE 18 /* Encode/Decode macros */ #if defined(ELFTC_NEED_BYTEORDER_EXTENSIONS) static __inline uint16_t le16dec(const void *pp) { unsigned char const *p = (unsigned char const *)pp; return ((p[1] << 8) | p[0]); } static __inline uint32_t le32dec(const void *pp) { unsigned char const *p = (unsigned char const *)pp; return ((p[3] << 24) | (p[2] << 16) | (p[1] << 8) | p[0]); } static __inline uint64_t le64dec(const void *pp) { unsigned char const *p = (unsigned char const *)pp; return (((uint64_t)le32dec(p + 4) << 32) | le32dec(p)); } static __inline void le16enc(void *pp, uint16_t u) { unsigned char *p = (unsigned char *)pp; p[0] = u & 0xff; p[1] = (u >> 8) & 0xff; } static __inline void le32enc(void *pp, uint32_t u) { unsigned char *p = (unsigned char *)pp; p[0] = u & 0xff; p[1] = (u >> 8) & 0xff; p[2] = (u >> 16) & 0xff; p[3] = (u >> 24) & 0xff; } static __inline void le64enc(void *pp, uint64_t u) { unsigned char *p = (unsigned char *)pp; le32enc(p, (uint32_t)(u & 0xffffffffU)); le32enc(p + 4, (uint32_t)(u >> 32)); } #endif /* ELFTC_NEED_BYTEORDER_EXTENSIONS */ #define PE_READ16(p,v) do { \ (v) = le16dec((p)); \ (p) += 2; \ } while(0) #define PE_READ32(p,v) do { \ (v) = le32dec((p)); \ (p) += 4; \ } while(0) #define PE_WRITE16(p,v) do { \ le16enc((p), (v)); \ (p) += 2; \ } while(0) #define PE_WRITE32(p,v) do { \ le32enc((p), (v)); \ (p) += 4; \ } while(0) /* Internal function declarations */ off_t libpe_align(PE *, off_t, size_t); PE_SecBuf *libpe_alloc_buffer(PE_Scn *, size_t); PE_Scn *libpe_alloc_scn(PE *); int libpe_load_all_sections(PE *); int libpe_load_section(PE *, PE_Scn *); int libpe_open_object(PE *); int libpe_pad(PE *, size_t); int libpe_parse_msdos_header(PE *, char *); int libpe_parse_coff_header(PE *, char *); int libpe_parse_rich_header(PE *); int libpe_parse_section_headers(PE *); int libpe_read_msdos_stub(PE *); void libpe_release_buffer(PE_SecBuf *); void libpe_release_object(PE *); void libpe_release_scn(PE_Scn *); size_t libpe_resync_buffers(PE_Scn *); int libpe_resync_sections(PE *, off_t); int libpe_write_buffers(PE_Scn *); off_t libpe_write_coff_header(PE *, off_t); off_t libpe_write_msdos_stub(PE *, off_t); off_t libpe_write_pe_header(PE *, off_t); off_t libpe_write_sections(PE *, off_t); off_t libpe_write_section_headers(PE *, off_t); #endif /* !__LIBPE_H_ */