g_eli.h (876d357fa7bc8aeb8d050dd8fe227dd4fd8ed4df) g_eli.h (ae8b1f90fecd606bbf17c74500fec4f91a3c8c04)
1/*-
2 * Copyright (c) 2005-2011 Pawel Jakub Dawidek <pawel@dawidek.net>
3 * All rights reserved.
4 *
5 * Redistribution and use in source and binary forms, with or without
6 * modification, are permitted provided that the following conditions
7 * are met:
8 * 1. Redistributions of source code must retain the above copyright

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284 le32enc(p, md->md_iterations); p += sizeof(md->md_iterations);
285 bcopy(md->md_salt, p, sizeof(md->md_salt)); p += sizeof(md->md_salt);
286 bcopy(md->md_mkeys, p, sizeof(md->md_mkeys)); p += sizeof(md->md_mkeys);
287 *datap = p;
288}
289static __inline void
290eli_metadata_encode(struct g_eli_metadata *md, u_char *data)
291{
1/*-
2 * Copyright (c) 2005-2011 Pawel Jakub Dawidek <pawel@dawidek.net>
3 * All rights reserved.
4 *
5 * Redistribution and use in source and binary forms, with or without
6 * modification, are permitted provided that the following conditions
7 * are met:
8 * 1. Redistributions of source code must retain the above copyright

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284 le32enc(p, md->md_iterations); p += sizeof(md->md_iterations);
285 bcopy(md->md_salt, p, sizeof(md->md_salt)); p += sizeof(md->md_salt);
286 bcopy(md->md_mkeys, p, sizeof(md->md_mkeys)); p += sizeof(md->md_mkeys);
287 *datap = p;
288}
289static __inline void
290eli_metadata_encode(struct g_eli_metadata *md, u_char *data)
291{
292 uint32_t hash[4];
292 MD5_CTX ctx;
293 u_char *p;
294
295 p = data;
296 bcopy(md->md_magic, p, sizeof(md->md_magic));
297 p += sizeof(md->md_magic);
298 le32enc(p, md->md_version);
299 p += sizeof(md->md_version);

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315 panic("%s: Unsupported version %u.", __func__,
316 (u_int)md->md_version);
317#else
318 assert(!"Unsupported metadata version.");
319#endif
320 }
321 MD5Init(&ctx);
322 MD5Update(&ctx, data, p - data);
293 MD5_CTX ctx;
294 u_char *p;
295
296 p = data;
297 bcopy(md->md_magic, p, sizeof(md->md_magic));
298 p += sizeof(md->md_magic);
299 le32enc(p, md->md_version);
300 p += sizeof(md->md_version);

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316 panic("%s: Unsupported version %u.", __func__,
317 (u_int)md->md_version);
318#else
319 assert(!"Unsupported metadata version.");
320#endif
321 }
322 MD5Init(&ctx);
323 MD5Update(&ctx, data, p - data);
323 MD5Final(md->md_hash, &ctx);
324 MD5Final((void *)hash, &ctx);
325 bcopy(hash, md->md_hash, sizeof(md->md_hash));
324 bcopy(md->md_hash, p, sizeof(md->md_hash));
325}
326static __inline int
327eli_metadata_decode_v0(const u_char *data, struct g_eli_metadata *md)
328{
326 bcopy(md->md_hash, p, sizeof(md->md_hash));
327}
328static __inline int
329eli_metadata_decode_v0(const u_char *data, struct g_eli_metadata *md)
330{
331 uint32_t hash[4];
329 MD5_CTX ctx;
330 const u_char *p;
331
332 p = data + sizeof(md->md_magic) + sizeof(md->md_version);
333 md->md_flags = le32dec(p); p += sizeof(md->md_flags);
334 md->md_ealgo = le16dec(p); p += sizeof(md->md_ealgo);
335 md->md_keylen = le16dec(p); p += sizeof(md->md_keylen);
336 md->md_provsize = le64dec(p); p += sizeof(md->md_provsize);
337 md->md_sectorsize = le32dec(p); p += sizeof(md->md_sectorsize);
338 md->md_keys = *p; p += sizeof(md->md_keys);
339 md->md_iterations = le32dec(p); p += sizeof(md->md_iterations);
340 bcopy(p, md->md_salt, sizeof(md->md_salt)); p += sizeof(md->md_salt);
341 bcopy(p, md->md_mkeys, sizeof(md->md_mkeys)); p += sizeof(md->md_mkeys);
342 MD5Init(&ctx);
343 MD5Update(&ctx, data, p - data);
332 MD5_CTX ctx;
333 const u_char *p;
334
335 p = data + sizeof(md->md_magic) + sizeof(md->md_version);
336 md->md_flags = le32dec(p); p += sizeof(md->md_flags);
337 md->md_ealgo = le16dec(p); p += sizeof(md->md_ealgo);
338 md->md_keylen = le16dec(p); p += sizeof(md->md_keylen);
339 md->md_provsize = le64dec(p); p += sizeof(md->md_provsize);
340 md->md_sectorsize = le32dec(p); p += sizeof(md->md_sectorsize);
341 md->md_keys = *p; p += sizeof(md->md_keys);
342 md->md_iterations = le32dec(p); p += sizeof(md->md_iterations);
343 bcopy(p, md->md_salt, sizeof(md->md_salt)); p += sizeof(md->md_salt);
344 bcopy(p, md->md_mkeys, sizeof(md->md_mkeys)); p += sizeof(md->md_mkeys);
345 MD5Init(&ctx);
346 MD5Update(&ctx, data, p - data);
344 MD5Final(md->md_hash, &ctx);
347 MD5Final((void *)hash, &ctx);
348 bcopy(hash, md->md_hash, sizeof(md->md_hash));
345 if (bcmp(md->md_hash, p, 16) != 0)
346 return (EINVAL);
347 return (0);
348}
349
350static __inline int
351eli_metadata_decode_v1v2v3v4v5v6v7(const u_char *data, struct g_eli_metadata *md)
352{
349 if (bcmp(md->md_hash, p, 16) != 0)
350 return (EINVAL);
351 return (0);
352}
353
354static __inline int
355eli_metadata_decode_v1v2v3v4v5v6v7(const u_char *data, struct g_eli_metadata *md)
356{
357 uint32_t hash[4];
353 MD5_CTX ctx;
354 const u_char *p;
355
356 p = data + sizeof(md->md_magic) + sizeof(md->md_version);
357 md->md_flags = le32dec(p); p += sizeof(md->md_flags);
358 md->md_ealgo = le16dec(p); p += sizeof(md->md_ealgo);
359 md->md_keylen = le16dec(p); p += sizeof(md->md_keylen);
360 md->md_aalgo = le16dec(p); p += sizeof(md->md_aalgo);
361 md->md_provsize = le64dec(p); p += sizeof(md->md_provsize);
362 md->md_sectorsize = le32dec(p); p += sizeof(md->md_sectorsize);
363 md->md_keys = *p; p += sizeof(md->md_keys);
364 md->md_iterations = le32dec(p); p += sizeof(md->md_iterations);
365 bcopy(p, md->md_salt, sizeof(md->md_salt)); p += sizeof(md->md_salt);
366 bcopy(p, md->md_mkeys, sizeof(md->md_mkeys)); p += sizeof(md->md_mkeys);
367 MD5Init(&ctx);
368 MD5Update(&ctx, data, p - data);
358 MD5_CTX ctx;
359 const u_char *p;
360
361 p = data + sizeof(md->md_magic) + sizeof(md->md_version);
362 md->md_flags = le32dec(p); p += sizeof(md->md_flags);
363 md->md_ealgo = le16dec(p); p += sizeof(md->md_ealgo);
364 md->md_keylen = le16dec(p); p += sizeof(md->md_keylen);
365 md->md_aalgo = le16dec(p); p += sizeof(md->md_aalgo);
366 md->md_provsize = le64dec(p); p += sizeof(md->md_provsize);
367 md->md_sectorsize = le32dec(p); p += sizeof(md->md_sectorsize);
368 md->md_keys = *p; p += sizeof(md->md_keys);
369 md->md_iterations = le32dec(p); p += sizeof(md->md_iterations);
370 bcopy(p, md->md_salt, sizeof(md->md_salt)); p += sizeof(md->md_salt);
371 bcopy(p, md->md_mkeys, sizeof(md->md_mkeys)); p += sizeof(md->md_mkeys);
372 MD5Init(&ctx);
373 MD5Update(&ctx, data, p - data);
369 MD5Final(md->md_hash, &ctx);
374 MD5Final((void *)hash, &ctx);
375 bcopy(hash, md->md_hash, sizeof(md->md_hash));
370 if (bcmp(md->md_hash, p, 16) != 0)
371 return (EINVAL);
372 return (0);
373}
374static __inline int
375eli_metadata_decode(const u_char *data, struct g_eli_metadata *md)
376{
377 int error;

--- 332 unchanged lines hidden --- 		376 if (bcmp(md->md_hash, p, 16) != 0)
377 return (EINVAL);
378 return (0);
379}
380static __inline int
381eli_metadata_decode(const u_char *data, struct g_eli_metadata *md)
382{
383 int error;

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