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Fixed MTP to work with TWRP

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This commit is contained in:
awab228 2018-06-19 23:16:04 +02:00
commit f6dfaef42e
50820 changed files with 20846062 additions and 0 deletions
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48
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hostprogs-y := modpost mk_elfconfig
always := $(hostprogs-y) empty.o
modpost-objs := modpost.o file2alias.o sumversion.o
devicetable-offsets-file := devicetable-offsets.h
define sed-y
"/^->/{s:->#\(.*\):/* \1 */:; \
s:^->\([^ ]*\) [\$$#]*\([-0-9]*\) \(.*\):#define \1 \2 /* \3 */:; \
s:^->\([^ ]*\) [\$$#]*\([^ ]*\) \(.*\):#define \1 \2 /* \3 */:; \
s:->::; p;}"
endef
quiet_cmd_offsets = GEN $@
define cmd_offsets
(set -e; \
echo "#ifndef __DEVICETABLE_OFFSETS_H__"; \
echo "#define __DEVICETABLE_OFFSETS_H__"; \
echo "/*"; \
echo " * DO NOT MODIFY."; \
echo " *"; \
echo " * This file was generated by Kbuild"; \
echo " *"; \
echo " */"; \
echo ""; \
sed -ne $(sed-y) $<; \
echo ""; \
echo "#endif" ) > $@
endef
$(obj)/$(devicetable-offsets-file): $(obj)/devicetable-offsets.s
$(call if_changed,offsets)
targets += $(devicetable-offsets-file) devicetable-offsets.s
# dependencies on generated files need to be listed explicitly
$(obj)/modpost.o $(obj)/file2alias.o $(obj)/sumversion.o: $(obj)/elfconfig.h
$(obj)/file2alias.o: $(obj)/$(devicetable-offsets-file)
quiet_cmd_elfconfig = MKELF $@
cmd_elfconfig = $(obj)/mk_elfconfig < $< > $@
$(obj)/elfconfig.h: $(obj)/empty.o $(obj)/mk_elfconfig FORCE
$(call if_changed,elfconfig)
targets += elfconfig.h

190
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#include <linux/kbuild.h>
#include <linux/mod_devicetable.h>
#define DEVID(devid) DEFINE(SIZE_##devid, sizeof(struct devid))
#define DEVID_FIELD(devid, field) \
DEFINE(OFF_##devid##_##field, offsetof(struct devid, field))
int main(void)
{
DEVID(usb_device_id);
DEVID_FIELD(usb_device_id, match_flags);
DEVID_FIELD(usb_device_id, idVendor);
DEVID_FIELD(usb_device_id, idProduct);
DEVID_FIELD(usb_device_id, bcdDevice_lo);
DEVID_FIELD(usb_device_id, bcdDevice_hi);
DEVID_FIELD(usb_device_id, bDeviceClass);
DEVID_FIELD(usb_device_id, bDeviceSubClass);
DEVID_FIELD(usb_device_id, bDeviceProtocol);
DEVID_FIELD(usb_device_id, bInterfaceClass);
DEVID_FIELD(usb_device_id, bInterfaceSubClass);
DEVID_FIELD(usb_device_id, bInterfaceProtocol);
DEVID_FIELD(usb_device_id, bInterfaceNumber);
DEVID(hid_device_id);
DEVID_FIELD(hid_device_id, bus);
DEVID_FIELD(hid_device_id, group);
DEVID_FIELD(hid_device_id, vendor);
DEVID_FIELD(hid_device_id, product);
DEVID(ieee1394_device_id);
DEVID_FIELD(ieee1394_device_id, match_flags);
DEVID_FIELD(ieee1394_device_id, vendor_id);
DEVID_FIELD(ieee1394_device_id, model_id);
DEVID_FIELD(ieee1394_device_id, specifier_id);
DEVID_FIELD(ieee1394_device_id, version);
DEVID(pci_device_id);
DEVID_FIELD(pci_device_id, vendor);
DEVID_FIELD(pci_device_id, device);
DEVID_FIELD(pci_device_id, subvendor);
DEVID_FIELD(pci_device_id, subdevice);
DEVID_FIELD(pci_device_id, class);
DEVID_FIELD(pci_device_id, class_mask);
DEVID(ccw_device_id);
DEVID_FIELD(ccw_device_id, match_flags);
DEVID_FIELD(ccw_device_id, cu_type);
DEVID_FIELD(ccw_device_id, cu_model);
DEVID_FIELD(ccw_device_id, dev_type);
DEVID_FIELD(ccw_device_id, dev_model);
DEVID(ap_device_id);
DEVID_FIELD(ap_device_id, dev_type);
DEVID(css_device_id);
DEVID_FIELD(css_device_id, type);
DEVID(serio_device_id);
DEVID_FIELD(serio_device_id, type);
DEVID_FIELD(serio_device_id, proto);
DEVID_FIELD(serio_device_id, id);
DEVID_FIELD(serio_device_id, extra);
DEVID(acpi_device_id);
DEVID_FIELD(acpi_device_id, id);
DEVID(pnp_device_id);
DEVID_FIELD(pnp_device_id, id);
DEVID(pnp_card_device_id);
DEVID_FIELD(pnp_card_device_id, devs);
DEVID(pcmcia_device_id);
DEVID_FIELD(pcmcia_device_id, match_flags);
DEVID_FIELD(pcmcia_device_id, manf_id);
DEVID_FIELD(pcmcia_device_id, card_id);
DEVID_FIELD(pcmcia_device_id, func_id);
DEVID_FIELD(pcmcia_device_id, function);
DEVID_FIELD(pcmcia_device_id, device_no);
DEVID_FIELD(pcmcia_device_id, prod_id_hash);
DEVID(of_device_id);
DEVID_FIELD(of_device_id, name);
DEVID_FIELD(of_device_id, type);
DEVID_FIELD(of_device_id, compatible);
DEVID(vio_device_id);
DEVID_FIELD(vio_device_id, type);
DEVID_FIELD(vio_device_id, compat);
DEVID(input_device_id);
DEVID_FIELD(input_device_id, flags);
DEVID_FIELD(input_device_id, bustype);
DEVID_FIELD(input_device_id, vendor);
DEVID_FIELD(input_device_id, product);
DEVID_FIELD(input_device_id, version);
DEVID_FIELD(input_device_id, evbit);
DEVID_FIELD(input_device_id, keybit);
DEVID_FIELD(input_device_id, relbit);
DEVID_FIELD(input_device_id, absbit);
DEVID_FIELD(input_device_id, mscbit);
DEVID_FIELD(input_device_id, ledbit);
DEVID_FIELD(input_device_id, sndbit);
DEVID_FIELD(input_device_id, ffbit);
DEVID_FIELD(input_device_id, swbit);
DEVID(eisa_device_id);
DEVID_FIELD(eisa_device_id, sig);
DEVID(parisc_device_id);
DEVID_FIELD(parisc_device_id, hw_type);
DEVID_FIELD(parisc_device_id, hversion);
DEVID_FIELD(parisc_device_id, hversion_rev);
DEVID_FIELD(parisc_device_id, sversion);
DEVID(sdio_device_id);
DEVID_FIELD(sdio_device_id, class);
DEVID_FIELD(sdio_device_id, vendor);
DEVID_FIELD(sdio_device_id, device);
DEVID(ssb_device_id);
DEVID_FIELD(ssb_device_id, vendor);
DEVID_FIELD(ssb_device_id, coreid);
DEVID_FIELD(ssb_device_id, revision);
DEVID(bcma_device_id);
DEVID_FIELD(bcma_device_id, manuf);
DEVID_FIELD(bcma_device_id, id);
DEVID_FIELD(bcma_device_id, rev);
DEVID_FIELD(bcma_device_id, class);
DEVID(virtio_device_id);
DEVID_FIELD(virtio_device_id, device);
DEVID_FIELD(virtio_device_id, vendor);
DEVID(hv_vmbus_device_id);
DEVID_FIELD(hv_vmbus_device_id, guid);
DEVID(i2c_device_id);
DEVID_FIELD(i2c_device_id, name);
DEVID(spi_device_id);
DEVID_FIELD(spi_device_id, name);
DEVID(dmi_system_id);
DEVID_FIELD(dmi_system_id, matches);
DEVID(platform_device_id);
DEVID_FIELD(platform_device_id, name);
DEVID(mdio_device_id);
DEVID_FIELD(mdio_device_id, phy_id);
DEVID_FIELD(mdio_device_id, phy_id_mask);
DEVID(zorro_device_id);
DEVID_FIELD(zorro_device_id, id);
DEVID(isapnp_device_id);
DEVID_FIELD(isapnp_device_id, vendor);
DEVID_FIELD(isapnp_device_id, function);
DEVID(ipack_device_id);
DEVID_FIELD(ipack_device_id, format);
DEVID_FIELD(ipack_device_id, vendor);
DEVID_FIELD(ipack_device_id, device);
DEVID(amba_id);
DEVID_FIELD(amba_id, id);
DEVID_FIELD(amba_id, mask);
DEVID(x86_cpu_id);
DEVID_FIELD(x86_cpu_id, feature);
DEVID_FIELD(x86_cpu_id, family);
DEVID_FIELD(x86_cpu_id, model);
DEVID_FIELD(x86_cpu_id, vendor);
DEVID(cpu_feature);
DEVID_FIELD(cpu_feature, feature);
DEVID(mei_cl_device_id);
DEVID_FIELD(mei_cl_device_id, name);
DEVID(rio_device_id);
DEVID_FIELD(rio_device_id, did);
DEVID_FIELD(rio_device_id, vid);
DEVID_FIELD(rio_device_id, asm_did);
DEVID_FIELD(rio_device_id, asm_vid);
return 0;
}

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/* empty file to figure out endianness / word size */

1282
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56
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#include <stdio.h>
#include <stdlib.h>
#include <string.h>
#include <elf.h>
int
main(int argc, char **argv)
{
unsigned char ei[EI_NIDENT];
union { short s; char c[2]; } endian_test;
if (fread(ei, 1, EI_NIDENT, stdin) != EI_NIDENT) {
fprintf(stderr, "Error: input truncated\n");
return 1;
}
if (memcmp(ei, ELFMAG, SELFMAG) != 0) {
fprintf(stderr, "Error: not ELF\n");
return 1;
}
switch (ei[EI_CLASS]) {
case ELFCLASS32:
printf("#define KERNEL_ELFCLASS ELFCLASS32\n");
break;
case ELFCLASS64:
printf("#define KERNEL_ELFCLASS ELFCLASS64\n");
break;
default:
exit(1);
}
switch (ei[EI_DATA]) {
case ELFDATA2LSB:
printf("#define KERNEL_ELFDATA ELFDATA2LSB\n");
break;
case ELFDATA2MSB:
printf("#define KERNEL_ELFDATA ELFDATA2MSB\n");
break;
default:
exit(1);
}
if (sizeof(unsigned long) == 4) {
printf("#define HOST_ELFCLASS ELFCLASS32\n");
} else if (sizeof(unsigned long) == 8) {
printf("#define HOST_ELFCLASS ELFCLASS64\n");
}
endian_test.s = 0x0102;
if (memcmp(endian_test.c, "\x01\x02", 2) == 0)
printf("#define HOST_ELFDATA ELFDATA2MSB\n");
else if (memcmp(endian_test.c, "\x02\x01", 2) == 0)
printf("#define HOST_ELFDATA ELFDATA2LSB\n");
else
exit(1);
return 0;
}

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187
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#include <stdio.h>
#include <stdlib.h>
#include <stdarg.h>
#include <string.h>
#include <sys/types.h>
#include <sys/stat.h>
#include <sys/mman.h>
#include <fcntl.h>
#include <unistd.h>
#include <elf.h>
#include "elfconfig.h"
#if KERNEL_ELFCLASS == ELFCLASS32
#define Elf_Ehdr Elf32_Ehdr
#define Elf_Shdr Elf32_Shdr
#define Elf_Sym Elf32_Sym
#define Elf_Addr Elf32_Addr
#define Elf_Sword Elf64_Sword
#define Elf_Section Elf32_Half
#define ELF_ST_BIND ELF32_ST_BIND
#define ELF_ST_TYPE ELF32_ST_TYPE
#define Elf_Rel Elf32_Rel
#define Elf_Rela Elf32_Rela
#define ELF_R_SYM ELF32_R_SYM
#define ELF_R_TYPE ELF32_R_TYPE
#else
#define Elf_Ehdr Elf64_Ehdr
#define Elf_Shdr Elf64_Shdr
#define Elf_Sym Elf64_Sym
#define Elf_Addr Elf64_Addr
#define Elf_Sword Elf64_Sxword
#define Elf_Section Elf64_Half
#define ELF_ST_BIND ELF64_ST_BIND
#define ELF_ST_TYPE ELF64_ST_TYPE
#define Elf_Rel Elf64_Rel
#define Elf_Rela Elf64_Rela
#define ELF_R_SYM ELF64_R_SYM
#define ELF_R_TYPE ELF64_R_TYPE
#endif
/* The 64-bit MIPS ELF ABI uses an unusual reloc format. */
typedef struct
{
Elf32_Word r_sym; /* Symbol index */
unsigned char r_ssym; /* Special symbol for 2nd relocation */
unsigned char r_type3; /* 3rd relocation type */
unsigned char r_type2; /* 2nd relocation type */
unsigned char r_type1; /* 1st relocation type */
} _Elf64_Mips_R_Info;
typedef union
{
Elf64_Xword r_info_number;
_Elf64_Mips_R_Info r_info_fields;
} _Elf64_Mips_R_Info_union;
#define ELF64_MIPS_R_SYM(i) \
((__extension__ (_Elf64_Mips_R_Info_union)(i)).r_info_fields.r_sym)
#define ELF64_MIPS_R_TYPE(i) \
((__extension__ (_Elf64_Mips_R_Info_union)(i)).r_info_fields.r_type1)
#if KERNEL_ELFDATA != HOST_ELFDATA
static inline void __endian(const void *src, void *dest, unsigned int size)
{
unsigned int i;
for (i = 0; i < size; i++)
((unsigned char*)dest)[i] = ((unsigned char*)src)[size - i-1];
}
#define TO_NATIVE(x) \
({ \
typeof(x) __x; \
__endian(&(x), &(__x), sizeof(__x)); \
__x; \
})
#else /* endianness matches */
#define TO_NATIVE(x) (x)
#endif
#define NOFAIL(ptr) do_nofail((ptr), #ptr)
void *do_nofail(void *ptr, const char *expr);
struct buffer {
char *p;
int pos;
int size;
};
void __attribute__((format(printf, 2, 3)))
buf_printf(struct buffer *buf, const char *fmt, ...);
void
buf_write(struct buffer *buf, const char *s, int len);
struct module {
struct module *next;
const char *name;
int gpl_compatible;
struct symbol *unres;
int seen;
int skip;
int has_init;
int has_cleanup;
struct buffer dev_table_buf;
char srcversion[25];
int is_dot_o;
};
struct elf_info {
unsigned long size;
Elf_Ehdr *hdr;
Elf_Shdr *sechdrs;
Elf_Sym *symtab_start;
Elf_Sym *symtab_stop;
Elf_Section export_sec;
Elf_Section export_unused_sec;
Elf_Section export_gpl_sec;
Elf_Section export_unused_gpl_sec;
Elf_Section export_gpl_future_sec;
char *strtab;
char *modinfo;
unsigned int modinfo_len;
/* support for 32bit section numbers */
unsigned int num_sections; /* max_secindex + 1 */
unsigned int secindex_strings;
/* if Nth symbol table entry has .st_shndx = SHN_XINDEX,
* take shndx from symtab_shndx_start[N] instead */
Elf32_Word *symtab_shndx_start;
Elf32_Word *symtab_shndx_stop;
};
static inline int is_shndx_special(unsigned int i)
{
return i != SHN_XINDEX && i >= SHN_LORESERVE && i <= SHN_HIRESERVE;
}
/*
* Move reserved section indices SHN_LORESERVE..SHN_HIRESERVE out of
* the way to -256..-1, to avoid conflicting with real section
* indices.
*/
#define SPECIAL(i) ((i) - (SHN_HIRESERVE + 1))
/* Accessor for sym->st_shndx, hides ugliness of "64k sections" */
static inline unsigned int get_secindex(const struct elf_info *info,
const Elf_Sym *sym)
{
if (is_shndx_special(sym->st_shndx))
return SPECIAL(sym->st_shndx);
if (sym->st_shndx != SHN_XINDEX)
return sym->st_shndx;
return info->symtab_shndx_start[sym - info->symtab_start];
}
/* file2alias.c */
extern unsigned int cross_build;
void handle_moddevtable(struct module *mod, struct elf_info *info,
Elf_Sym *sym, const char *symname);
void add_moddevtable(struct buffer *buf, struct module *mod);
/* sumversion.c */
void maybe_frob_rcs_version(const char *modfilename,
char *version,
void *modinfo,
unsigned long modinfo_offset);
void get_src_version(const char *modname, char sum[], unsigned sumlen);
/* from modpost.c */
void *grab_file(const char *filename, unsigned long *size);
char* get_next_line(unsigned long *pos, void *file, unsigned long size);
void release_file(void *file, unsigned long size);
void fatal(const char *fmt, ...);
void warn(const char *fmt, ...);
void merror(const char *fmt, ...);

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#include <netinet/in.h>
#ifdef __sun__
#include <inttypes.h>
#else
#include <stdint.h>
#endif
#include <ctype.h>
#include <errno.h>
#include <string.h>
#include <limits.h>
#include "modpost.h"
/*
* Stolen form Cryptographic API.
*
* MD4 Message Digest Algorithm (RFC1320).
*
* Implementation derived from Andrew Tridgell and Steve French's
* CIFS MD4 implementation, and the cryptoapi implementation
* originally based on the public domain implementation written
* by Colin Plumb in 1993.
*
* Copyright (c) Andrew Tridgell 1997-1998.
* Modified by Steve French (sfrench@us.ibm.com) 2002
* Copyright (c) Cryptoapi developers.
* Copyright (c) 2002 David S. Miller (davem@redhat.com)
* Copyright (c) 2002 James Morris <jmorris@intercode.com.au>
*
* 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.
*
*/
#define MD4_DIGEST_SIZE 16
#define MD4_HMAC_BLOCK_SIZE 64
#define MD4_BLOCK_WORDS 16
#define MD4_HASH_WORDS 4
struct md4_ctx {
uint32_t hash[MD4_HASH_WORDS];
uint32_t block[MD4_BLOCK_WORDS];
uint64_t byte_count;
};
static inline uint32_t lshift(uint32_t x, unsigned int s)
{
x &= 0xFFFFFFFF;
return ((x << s) & 0xFFFFFFFF) | (x >> (32 - s));
}
static inline uint32_t F(uint32_t x, uint32_t y, uint32_t z)
{
return (x & y) | ((~x) & z);
}
static inline uint32_t G(uint32_t x, uint32_t y, uint32_t z)
{
return (x & y) | (x & z) | (y & z);
}
static inline uint32_t H(uint32_t x, uint32_t y, uint32_t z)
{
return x ^ y ^ z;
}
#define ROUND1(a,b,c,d,k,s) (a = lshift(a + F(b,c,d) + k, s))
#define ROUND2(a,b,c,d,k,s) (a = lshift(a + G(b,c,d) + k + (uint32_t)0x5A827999,s))
#define ROUND3(a,b,c,d,k,s) (a = lshift(a + H(b,c,d) + k + (uint32_t)0x6ED9EBA1,s))
/* XXX: this stuff can be optimized */
static inline void le32_to_cpu_array(uint32_t *buf, unsigned int words)
{
while (words--) {
*buf = ntohl(*buf);
buf++;
}
}
static inline void cpu_to_le32_array(uint32_t *buf, unsigned int words)
{
while (words--) {
*buf = htonl(*buf);
buf++;
}
}
static void md4_transform(uint32_t *hash, uint32_t const *in)
{
uint32_t a, b, c, d;
a = hash[0];
b = hash[1];
c = hash[2];
d = hash[3];
ROUND1(a, b, c, d, in[0], 3);
ROUND1(d, a, b, c, in[1], 7);
ROUND1(c, d, a, b, in[2], 11);
ROUND1(b, c, d, a, in[3], 19);
ROUND1(a, b, c, d, in[4], 3);
ROUND1(d, a, b, c, in[5], 7);
ROUND1(c, d, a, b, in[6], 11);
ROUND1(b, c, d, a, in[7], 19);
ROUND1(a, b, c, d, in[8], 3);
ROUND1(d, a, b, c, in[9], 7);
ROUND1(c, d, a, b, in[10], 11);
ROUND1(b, c, d, a, in[11], 19);
ROUND1(a, b, c, d, in[12], 3);
ROUND1(d, a, b, c, in[13], 7);
ROUND1(c, d, a, b, in[14], 11);
ROUND1(b, c, d, a, in[15], 19);
ROUND2(a, b, c, d,in[ 0], 3);
ROUND2(d, a, b, c, in[4], 5);
ROUND2(c, d, a, b, in[8], 9);
ROUND2(b, c, d, a, in[12], 13);
ROUND2(a, b, c, d, in[1], 3);
ROUND2(d, a, b, c, in[5], 5);
ROUND2(c, d, a, b, in[9], 9);
ROUND2(b, c, d, a, in[13], 13);
ROUND2(a, b, c, d, in[2], 3);
ROUND2(d, a, b, c, in[6], 5);
ROUND2(c, d, a, b, in[10], 9);
ROUND2(b, c, d, a, in[14], 13);
ROUND2(a, b, c, d, in[3], 3);
ROUND2(d, a, b, c, in[7], 5);
ROUND2(c, d, a, b, in[11], 9);
ROUND2(b, c, d, a, in[15], 13);
ROUND3(a, b, c, d,in[ 0], 3);
ROUND3(d, a, b, c, in[8], 9);
ROUND3(c, d, a, b, in[4], 11);
ROUND3(b, c, d, a, in[12], 15);
ROUND3(a, b, c, d, in[2], 3);
ROUND3(d, a, b, c, in[10], 9);
ROUND3(c, d, a, b, in[6], 11);
ROUND3(b, c, d, a, in[14], 15);
ROUND3(a, b, c, d, in[1], 3);
ROUND3(d, a, b, c, in[9], 9);
ROUND3(c, d, a, b, in[5], 11);
ROUND3(b, c, d, a, in[13], 15);
ROUND3(a, b, c, d, in[3], 3);
ROUND3(d, a, b, c, in[11], 9);
ROUND3(c, d, a, b, in[7], 11);
ROUND3(b, c, d, a, in[15], 15);
hash[0] += a;
hash[1] += b;
hash[2] += c;
hash[3] += d;
}
static inline void md4_transform_helper(struct md4_ctx *ctx)
{
le32_to_cpu_array(ctx->block, sizeof(ctx->block) / sizeof(uint32_t));
md4_transform(ctx->hash, ctx->block);
}
static void md4_init(struct md4_ctx *mctx)
{
mctx->hash[0] = 0x67452301;
mctx->hash[1] = 0xefcdab89;
mctx->hash[2] = 0x98badcfe;
mctx->hash[3] = 0x10325476;
mctx->byte_count = 0;
}
static void md4_update(struct md4_ctx *mctx,
const unsigned char *data, unsigned int len)
{
const uint32_t avail = sizeof(mctx->block) - (mctx->byte_count & 0x3f);
mctx->byte_count += len;
if (avail > len) {
memcpy((char *)mctx->block + (sizeof(mctx->block) - avail),
data, len);
return;
}
memcpy((char *)mctx->block + (sizeof(mctx->block) - avail),
data, avail);
md4_transform_helper(mctx);
data += avail;
len -= avail;
while (len >= sizeof(mctx->block)) {
memcpy(mctx->block, data, sizeof(mctx->block));
md4_transform_helper(mctx);
data += sizeof(mctx->block);
len -= sizeof(mctx->block);
}
memcpy(mctx->block, data, len);
}
static void md4_final_ascii(struct md4_ctx *mctx, char *out, unsigned int len)
{
const unsigned int offset = mctx->byte_count & 0x3f;
char *p = (char *)mctx->block + offset;
int padding = 56 - (offset + 1);
*p++ = 0x80;
if (padding < 0) {
memset(p, 0x00, padding + sizeof (uint64_t));
md4_transform_helper(mctx);
p = (char *)mctx->block;
padding = 56;
}
memset(p, 0, padding);
mctx->block[14] = mctx->byte_count << 3;
mctx->block[15] = mctx->byte_count >> 29;
le32_to_cpu_array(mctx->block, (sizeof(mctx->block) -
sizeof(uint64_t)) / sizeof(uint32_t));
md4_transform(mctx->hash, mctx->block);
cpu_to_le32_array(mctx->hash, sizeof(mctx->hash) / sizeof(uint32_t));
snprintf(out, len, "%08X%08X%08X%08X",
mctx->hash[0], mctx->hash[1], mctx->hash[2], mctx->hash[3]);
}
static inline void add_char(unsigned char c, struct md4_ctx *md)
{
md4_update(md, &c, 1);
}
static int parse_string(const char *file, unsigned long len,
struct md4_ctx *md)
{
unsigned long i;
add_char(file[0], md);
for (i = 1; i < len; i++) {
add_char(file[i], md);
if (file[i] == '"' && file[i-1] != '\\')
break;
}
return i;
}
static int parse_comment(const char *file, unsigned long len)
{
unsigned long i;
for (i = 2; i < len; i++) {
if (file[i-1] == '*' && file[i] == '/')
break;
}
return i;
}
/* FIXME: Handle .s files differently (eg. # starts comments) --RR */
static int parse_file(const char *fname, struct md4_ctx *md)
{
char *file;
unsigned long i, len;
file = grab_file(fname, &len);
if (!file)
return 0;
for (i = 0; i < len; i++) {
/* Collapse and ignore \ and CR. */
if (file[i] == '\\' && (i+1 < len) && file[i+1] == '\n') {
i++;
continue;
}
/* Ignore whitespace */
if (isspace(file[i]))
continue;
/* Handle strings as whole units */
if (file[i] == '"') {
i += parse_string(file+i, len - i, md);
continue;
}
/* Comments: ignore */
if (file[i] == '/' && file[i+1] == '*') {
i += parse_comment(file+i, len - i);
continue;
}
add_char(file[i], md);
}
release_file(file, len);
return 1;
}
/* Check whether the file is a static library or not */
static int is_static_library(const char *objfile)
{
int len = strlen(objfile);
if (objfile[len - 2] == '.' && objfile[len - 1] == 'a')
return 1;
else
return 0;
}
/* We have dir/file.o. Open dir/.file.o.cmd, look for source_ and deps_ line
* to figure out source files. */
static int parse_source_files(const char *objfile, struct md4_ctx *md)
{
char *cmd, *file, *line, *dir;
const char *base;
unsigned long flen, pos = 0;
int dirlen, ret = 0, check_files = 0;
cmd = NOFAIL(malloc(strlen(objfile) + sizeof("..cmd")));
base = strrchr(objfile, '/');
if (base) {
base++;
dirlen = base - objfile;
sprintf(cmd, "%.*s.%s.cmd", dirlen, objfile, base);
} else {
dirlen = 0;
sprintf(cmd, ".%s.cmd", objfile);
}
dir = NOFAIL(malloc(dirlen + 1));
strncpy(dir, objfile, dirlen);
dir[dirlen] = '\0';
file = grab_file(cmd, &flen);
if (!file) {
warn("could not find %s for %s\n", cmd, objfile);
goto out;
}
/* There will be a line like so:
deps_drivers/net/dummy.o := \
drivers/net/dummy.c \
$(wildcard include/config/net/fastroute.h) \
include/linux/module.h \
Sum all files in the same dir or subdirs.
*/
while ((line = get_next_line(&pos, file, flen)) != NULL) {
char* p = line;
if (strncmp(line, "source_", sizeof("source_")-1) == 0) {
p = strrchr(line, ' ');
if (!p) {
warn("malformed line: %s\n", line);
goto out_file;
}
p++;
if (!parse_file(p, md)) {
warn("could not open %s: %s\n",
p, strerror(errno));
goto out_file;
}
continue;
}
if (strncmp(line, "deps_", sizeof("deps_")-1) == 0) {
check_files = 1;
continue;
}
if (!check_files)
continue;
/* Continue until line does not end with '\' */
if ( *(p + strlen(p)-1) != '\\')
break;
/* Terminate line at first space, to get rid of final ' \' */
while (*p) {
if (isspace(*p)) {
*p = '\0';
break;
}
p++;
}
/* Check if this file is in same dir as objfile */
if ((strstr(line, dir)+strlen(dir)-1) == strrchr(line, '/')) {
if (!parse_file(line, md)) {
warn("could not open %s: %s\n",
line, strerror(errno));
goto out_file;
}
}
}
/* Everyone parsed OK */
ret = 1;
out_file:
release_file(file, flen);
out:
free(dir);
free(cmd);
return ret;
}
/* Calc and record src checksum. */
void get_src_version(const char *modname, char sum[], unsigned sumlen)
{
void *file;
unsigned long len;
struct md4_ctx md;
char *sources, *end, *fname;
const char *basename;
char filelist[PATH_MAX + 1];
char *modverdir = getenv("MODVERDIR");
if (!modverdir)
modverdir = ".";
/* Source files for module are in .tmp_versions/modname.mod,
after the first line. */
if (strrchr(modname, '/'))
basename = strrchr(modname, '/') + 1;
else
basename = modname;
snprintf(filelist, sizeof(filelist), "%s/%.*s.mod", modverdir,
(int) strlen(basename) - 2, basename);
file = grab_file(filelist, &len);
if (!file)
/* not a module or .mod file missing - ignore */
return;
sources = strchr(file, '\n');
if (!sources) {
warn("malformed versions file for %s\n", modname);
goto release;
}
sources++;
end = strchr(sources, '\n');
if (!end) {
warn("bad ending versions file for %s\n", modname);
goto release;
}
*end = '\0';
md4_init(&md);
while ((fname = strsep(&sources, " ")) != NULL) {
if (!*fname)
continue;
if (!(is_static_library(fname)) &&
!parse_source_files(fname, &md))
goto release;
}
md4_final_ascii(&md, sum, sumlen);
release:
release_file(file, len);
}
static void write_version(const char *filename, const char *sum,
unsigned long offset)
{
int fd;
fd = open(filename, O_RDWR);
if (fd < 0) {
warn("changing sum in %s failed: %s\n",
filename, strerror(errno));
return;
}
if (lseek(fd, offset, SEEK_SET) == (off_t)-1) {
warn("changing sum in %s:%lu failed: %s\n",
filename, offset, strerror(errno));
goto out;
}
if (write(fd, sum, strlen(sum)+1) != strlen(sum)+1) {
warn("writing sum in %s failed: %s\n",
filename, strerror(errno));
goto out;
}
out:
close(fd);
}
static int strip_rcs_crap(char *version)
{
unsigned int len, full_len;
if (strncmp(version, "$Revision", strlen("$Revision")) != 0)
return 0;
/* Space for version string follows. */
full_len = strlen(version) + strlen(version + strlen(version) + 1) + 2;
/* Move string to start with version number: prefix will be
* $Revision$ or $Revision: */
len = strlen("$Revision");
if (version[len] == ':' || version[len] == '$')
len++;
while (isspace(version[len]))
len++;
memmove(version, version+len, full_len-len);
full_len -= len;
/* Preserve up to next whitespace. */
len = 0;
while (version[len] && !isspace(version[len]))
len++;
memmove(version + len, version + strlen(version),
full_len - strlen(version));
return 1;
}
/* Clean up RCS-style version numbers. */
void maybe_frob_rcs_version(const char *modfilename,
char *version,
void *modinfo,
unsigned long version_offset)
{
if (strip_rcs_crap(version))
write_version(modfilename, version, version_offset);
}