Linux-2.6.12-rc2
Initial git repository build. I'm not bothering with the full history, even though we have it. We can create a separate "historical" git archive of that later if we want to, and in the meantime it's about 3.2GB when imported into git - space that would just make the early git days unnecessarily complicated, when we don't have a lot of good infrastructure for it. Let it rip!
This commit is contained in:
Linus Torvalds
498
scripts/mod/sumversion.c
Normal file
498
scripts/mod/sumversion.c
Normal file
@@ -0,0 +1,498 @@
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#include <netinet/in.h>
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#ifdef __sun__
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#include <inttypes.h>
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#else
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#include <stdint.h>
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#endif
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#include <ctype.h>
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#include <errno.h>
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#include <string.h>
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#include "modpost.h"
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/*
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* Stolen form Cryptographic API.
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*
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* MD4 Message Digest Algorithm (RFC1320).
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*
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* Implementation derived from Andrew Tridgell and Steve French's
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* CIFS MD4 implementation, and the cryptoapi implementation
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* originally based on the public domain implementation written
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* by Colin Plumb in 1993.
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*
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* Copyright (c) Andrew Tridgell 1997-1998.
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* Modified by Steve French (sfrench@us.ibm.com) 2002
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* Copyright (c) Cryptoapi developers.
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* Copyright (c) 2002 David S. Miller (davem@redhat.com)
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* Copyright (c) 2002 James Morris <jmorris@intercode.com.au>
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*
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* This program is free software; you can redistribute it and/or modify
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* it under the terms of the GNU General Public License as published by
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* the Free Software Foundation; either version 2 of the License, or
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* (at your option) any later version.
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*
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*/
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#define MD4_DIGEST_SIZE 16
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#define MD4_HMAC_BLOCK_SIZE 64
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#define MD4_BLOCK_WORDS 16
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#define MD4_HASH_WORDS 4
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struct md4_ctx {
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uint32_t hash[MD4_HASH_WORDS];
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uint32_t block[MD4_BLOCK_WORDS];
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uint64_t byte_count;
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};
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static inline uint32_t lshift(uint32_t x, unsigned int s)
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{
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x &= 0xFFFFFFFF;
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return ((x << s) & 0xFFFFFFFF) | (x >> (32 - s));
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}
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static inline uint32_t F(uint32_t x, uint32_t y, uint32_t z)
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{
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return (x & y) | ((~x) & z);
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}
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static inline uint32_t G(uint32_t x, uint32_t y, uint32_t z)
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{
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return (x & y) | (x & z) | (y & z);
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}
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static inline uint32_t H(uint32_t x, uint32_t y, uint32_t z)
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{
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return x ^ y ^ z;
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}
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#define ROUND1(a,b,c,d,k,s) (a = lshift(a + F(b,c,d) + k, s))
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#define ROUND2(a,b,c,d,k,s) (a = lshift(a + G(b,c,d) + k + (uint32_t)0x5A827999,s))
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#define ROUND3(a,b,c,d,k,s) (a = lshift(a + H(b,c,d) + k + (uint32_t)0x6ED9EBA1,s))
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/* XXX: this stuff can be optimized */
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static inline void le32_to_cpu_array(uint32_t *buf, unsigned int words)
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{
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while (words--) {
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*buf = ntohl(*buf);
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buf++;
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}
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}
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static inline void cpu_to_le32_array(uint32_t *buf, unsigned int words)
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{
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while (words--) {
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*buf = htonl(*buf);
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buf++;
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}
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}
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static void md4_transform(uint32_t *hash, uint32_t const *in)
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{
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uint32_t a, b, c, d;
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a = hash[0];
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b = hash[1];
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c = hash[2];
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d = hash[3];
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ROUND1(a, b, c, d, in[0], 3);
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ROUND1(d, a, b, c, in[1], 7);
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ROUND1(c, d, a, b, in[2], 11);
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ROUND1(b, c, d, a, in[3], 19);
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ROUND1(a, b, c, d, in[4], 3);
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ROUND1(d, a, b, c, in[5], 7);
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ROUND1(c, d, a, b, in[6], 11);
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ROUND1(b, c, d, a, in[7], 19);
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ROUND1(a, b, c, d, in[8], 3);
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ROUND1(d, a, b, c, in[9], 7);
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ROUND1(c, d, a, b, in[10], 11);
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ROUND1(b, c, d, a, in[11], 19);
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ROUND1(a, b, c, d, in[12], 3);
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ROUND1(d, a, b, c, in[13], 7);
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ROUND1(c, d, a, b, in[14], 11);
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ROUND1(b, c, d, a, in[15], 19);
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ROUND2(a, b, c, d,in[ 0], 3);
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ROUND2(d, a, b, c, in[4], 5);
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ROUND2(c, d, a, b, in[8], 9);
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ROUND2(b, c, d, a, in[12], 13);
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ROUND2(a, b, c, d, in[1], 3);
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ROUND2(d, a, b, c, in[5], 5);
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ROUND2(c, d, a, b, in[9], 9);
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ROUND2(b, c, d, a, in[13], 13);
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ROUND2(a, b, c, d, in[2], 3);
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ROUND2(d, a, b, c, in[6], 5);
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ROUND2(c, d, a, b, in[10], 9);
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ROUND2(b, c, d, a, in[14], 13);
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ROUND2(a, b, c, d, in[3], 3);
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ROUND2(d, a, b, c, in[7], 5);
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ROUND2(c, d, a, b, in[11], 9);
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ROUND2(b, c, d, a, in[15], 13);
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ROUND3(a, b, c, d,in[ 0], 3);
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ROUND3(d, a, b, c, in[8], 9);
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ROUND3(c, d, a, b, in[4], 11);
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ROUND3(b, c, d, a, in[12], 15);
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ROUND3(a, b, c, d, in[2], 3);
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ROUND3(d, a, b, c, in[10], 9);
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ROUND3(c, d, a, b, in[6], 11);
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ROUND3(b, c, d, a, in[14], 15);
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ROUND3(a, b, c, d, in[1], 3);
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ROUND3(d, a, b, c, in[9], 9);
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ROUND3(c, d, a, b, in[5], 11);
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ROUND3(b, c, d, a, in[13], 15);
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ROUND3(a, b, c, d, in[3], 3);
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ROUND3(d, a, b, c, in[11], 9);
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ROUND3(c, d, a, b, in[7], 11);
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ROUND3(b, c, d, a, in[15], 15);
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hash[0] += a;
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hash[1] += b;
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hash[2] += c;
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hash[3] += d;
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}
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static inline void md4_transform_helper(struct md4_ctx *ctx)
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{
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le32_to_cpu_array(ctx->block, sizeof(ctx->block) / sizeof(uint32_t));
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md4_transform(ctx->hash, ctx->block);
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}
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static void md4_init(struct md4_ctx *mctx)
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{
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mctx->hash[0] = 0x67452301;
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mctx->hash[1] = 0xefcdab89;
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mctx->hash[2] = 0x98badcfe;
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mctx->hash[3] = 0x10325476;
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mctx->byte_count = 0;
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}
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static void md4_update(struct md4_ctx *mctx,
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const unsigned char *data, unsigned int len)
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{
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const uint32_t avail = sizeof(mctx->block) - (mctx->byte_count & 0x3f);
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mctx->byte_count += len;
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if (avail > len) {
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memcpy((char *)mctx->block + (sizeof(mctx->block) - avail),
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data, len);
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return;
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}
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memcpy((char *)mctx->block + (sizeof(mctx->block) - avail),
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data, avail);
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md4_transform_helper(mctx);
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data += avail;
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len -= avail;
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while (len >= sizeof(mctx->block)) {
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memcpy(mctx->block, data, sizeof(mctx->block));
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md4_transform_helper(mctx);
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data += sizeof(mctx->block);
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len -= sizeof(mctx->block);
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}
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memcpy(mctx->block, data, len);
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}
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static void md4_final_ascii(struct md4_ctx *mctx, char *out, unsigned int len)
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{
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const unsigned int offset = mctx->byte_count & 0x3f;
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char *p = (char *)mctx->block + offset;
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int padding = 56 - (offset + 1);
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*p++ = 0x80;
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if (padding < 0) {
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memset(p, 0x00, padding + sizeof (uint64_t));
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md4_transform_helper(mctx);
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p = (char *)mctx->block;
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padding = 56;
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}
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memset(p, 0, padding);
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mctx->block[14] = mctx->byte_count << 3;
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mctx->block[15] = mctx->byte_count >> 29;
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le32_to_cpu_array(mctx->block, (sizeof(mctx->block) -
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sizeof(uint64_t)) / sizeof(uint32_t));
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md4_transform(mctx->hash, mctx->block);
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cpu_to_le32_array(mctx->hash, sizeof(mctx->hash) / sizeof(uint32_t));
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snprintf(out, len, "%08X%08X%08X%08X",
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mctx->hash[0], mctx->hash[1], mctx->hash[2], mctx->hash[3]);
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}
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static inline void add_char(unsigned char c, struct md4_ctx *md)
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{
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md4_update(md, &c, 1);
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}
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static int parse_string(const char *file, unsigned long len,
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struct md4_ctx *md)
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{
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unsigned long i;
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add_char(file[0], md);
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for (i = 1; i < len; i++) {
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add_char(file[i], md);
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if (file[i] == '"' && file[i-1] != '\\')
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break;
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}
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return i;
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}
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static int parse_comment(const char *file, unsigned long len)
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{
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unsigned long i;
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for (i = 2; i < len; i++) {
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if (file[i-1] == '*' && file[i] == '/')
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break;
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}
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return i;
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}
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/* FIXME: Handle .s files differently (eg. # starts comments) --RR */
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static int parse_file(const signed char *fname, struct md4_ctx *md)
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{
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signed char *file;
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unsigned long i, len;
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file = grab_file(fname, &len);
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if (!file)
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return 0;
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for (i = 0; i < len; i++) {
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/* Collapse and ignore \ and CR. */
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if (file[i] == '\\' && (i+1 < len) && file[i+1] == '\n') {
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i++;
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continue;
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||||
}
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||||
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/* Ignore whitespace */
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||||
if (isspace(file[i]))
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||||
continue;
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/* Handle strings as whole units */
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||||
if (file[i] == '"') {
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||||
i += parse_string(file+i, len - i, md);
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||||
continue;
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||||
}
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||||
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||||
/* Comments: ignore */
|
||||
if (file[i] == '/' && file[i+1] == '*') {
|
||||
i += parse_comment(file+i, len - i);
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||||
continue;
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||||
}
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||||
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||||
add_char(file[i], md);
|
||||
}
|
||||
release_file(file, len);
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||||
return 1;
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||||
}
|
||||
|
||||
/* We have dir/file.o. Open dir/.file.o.cmd, look for deps_ line to
|
||||
* figure out source file. */
|
||||
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) {
|
||||
fprintf(stderr, "Warning: 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/config.h \
|
||||
$(wildcard include/config/h.h) \
|
||||
include/linux/module.h \
|
||||
|
||||
Sum all files in the same dir or subdirs.
|
||||
*/
|
||||
while ((line = get_next_line(&pos, file, flen)) != NULL) {
|
||||
signed char* p = line;
|
||||
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)) {
|
||||
fprintf(stderr,
|
||||
"Warning: 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[strlen(getenv("MODVERDIR")) + strlen("/") +
|
||||
strlen(modname) - strlen(".o") + strlen(".mod") + 1 ];
|
||||
|
||||
/* Source files for module are in .tmp_versions/modname.mod,
|
||||
after the first line. */
|
||||
if (strrchr(modname, '/'))
|
||||
basename = strrchr(modname, '/') + 1;
|
||||
else
|
||||
basename = modname;
|
||||
sprintf(filelist, "%s/%.*s.mod", getenv("MODVERDIR"),
|
||||
(int) strlen(basename) - 2, basename);
|
||||
|
||||
file = grab_file(filelist, &len);
|
||||
if (!file) {
|
||||
fprintf(stderr, "Warning: could not find versions for %s\n",
|
||||
filelist);
|
||||
return;
|
||||
}
|
||||
|
||||
sources = strchr(file, '\n');
|
||||
if (!sources) {
|
||||
fprintf(stderr, "Warning: malformed versions file for %s\n",
|
||||
modname);
|
||||
goto release;
|
||||
}
|
||||
|
||||
sources++;
|
||||
end = strchr(sources, '\n');
|
||||
if (!end) {
|
||||
fprintf(stderr, "Warning: bad ending versions file for %s\n",
|
||||
modname);
|
||||
goto release;
|
||||
}
|
||||
*end = '\0';
|
||||
|
||||
md4_init(&md);
|
||||
while ((fname = strsep(&sources, " ")) != NULL) {
|
||||
if (!*fname)
|
||||
continue;
|
||||
if (!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) {
|
||||
fprintf(stderr, "Warning: changing sum in %s failed: %s\n",
|
||||
filename, strerror(errno));
|
||||
return;
|
||||
}
|
||||
|
||||
if (lseek(fd, offset, SEEK_SET) == (off_t)-1) {
|
||||
fprintf(stderr, "Warning: changing sum in %s:%lu failed: %s\n",
|
||||
filename, offset, strerror(errno));
|
||||
goto out;
|
||||
}
|
||||
|
||||
if (write(fd, sum, strlen(sum)+1) != strlen(sum)+1) {
|
||||
fprintf(stderr, "Warning: writing sum in %s failed: %s\n",
|
||||
filename, strerror(errno));
|
||||
goto out;
|
||||
}
|
||||
out:
|
||||
close(fd);
|
||||
}
|
||||
|
||||
static int strip_rcs_crap(signed 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);
|
||||
}
|
||||
Reference in New Issue
Block a user