mirror of https://github.com/Qortal/Brooklyn
You can not select more than 25 topics
Topics must start with a letter or number, can include dashes ('-') and can be up to 35 characters long.
424 lines
9.7 KiB
424 lines
9.7 KiB
#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 ([email protected]) 2002 |
|
* Copyright (c) Cryptoapi developers. |
|
* Copyright (c) 2002 David S. Miller ([email protected]) |
|
* Copyright (c) 2002 James Morris <[email protected]> |
|
* |
|
* 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 = read_text_file(fname); |
|
len = strlen(file); |
|
|
|
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); |
|
} |
|
free(file); |
|
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, *pos; |
|
const char *base; |
|
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 = read_text_file(cmd); |
|
|
|
pos = file; |
|
|
|
/* Sum all files in the same dir or subdirs. */ |
|
while ((line = get_line(&pos))) { |
|
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: |
|
free(file); |
|
free(dir); |
|
free(cmd); |
|
return ret; |
|
} |
|
|
|
/* Calc and record src checksum. */ |
|
void get_src_version(const char *modname, char sum[], unsigned sumlen) |
|
{ |
|
char *buf, *pos, *firstline; |
|
struct md4_ctx md; |
|
char *fname; |
|
char filelist[PATH_MAX + 1]; |
|
int postfix_len = 1; |
|
|
|
if (strends(modname, ".lto.o")) |
|
postfix_len = 5; |
|
|
|
/* objects for a module are listed in the first line of *.mod file. */ |
|
snprintf(filelist, sizeof(filelist), "%.*smod", |
|
(int)strlen(modname) - postfix_len, modname); |
|
|
|
buf = read_text_file(filelist); |
|
|
|
pos = buf; |
|
firstline = get_line(&pos); |
|
if (!firstline) { |
|
warn("bad ending versions file for %s\n", modname); |
|
goto free; |
|
} |
|
|
|
md4_init(&md); |
|
while ((fname = strsep(&firstline, " "))) { |
|
if (!*fname) |
|
continue; |
|
if (!(is_static_library(fname)) && |
|
!parse_source_files(fname, &md)) |
|
goto free; |
|
} |
|
|
|
md4_final_ascii(&md, sum, sumlen); |
|
free: |
|
free(buf); |
|
}
|
|
|