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Fix mips compilation.

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* grub-core/lib/xzembed/xz_dec_stream.c (xz_dec): Restrict hash_id to
	normal decoder.
	(hashes): Use in embed decoder as well (for sizes).
	(dec_stream_header): Fix embed decompressor logic.
	(dec_stream_footer): Likewise.
This commit is contained in:
Vladimir 'phcoder' Serbinenko 2011-11-11 18:30:34 +01:00
parent 9bb182f371
commit f7ce5bafb5
2 changed files with 18 additions and 11 deletions
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10
ChangeLog
View file

@ -1,3 +1,13 @@
2011-11-11 Vladimir Serbinenko <phcoder@gmail.com>
Fix mips compilation.
* grub-core/lib/xzembed/xz_dec_stream.c (xz_dec): Restrict hash_id to
normal decoder.
(hashes): Use in embed decoder as well (for sizes).
(dec_stream_header): Fix embed decompressor logic.
(dec_stream_footer): Likewise.
2011-11-11 Vladimir Serbinenko <phcoder@gmail.com>
* grub-core/kern/x86_64/dl.c (grub_arch_dl_relocate_symbols): Issue

19
grub-core/lib/xzembed/xz_dec_stream.c
View file

@ -78,9 +78,9 @@ struct xz_dec {
#ifndef GRUB_EMBED_DECOMPRESSOR
const gcry_md_spec_t *hash;
const gcry_md_spec_t *crc32;
grub_uint8_t hash_id;
#endif
grub_size_t hash_size;
grub_uint8_t hash_id;
/* True if we are operating in single-call mode. */
bool single_call;
@ -428,8 +428,7 @@ static enum xz_ret hash_validate(struct xz_dec *s, struct xz_buf *b,
return XZ_STREAM_END;
}
#ifndef GRUB_EMBED_DECOMPRESSOR
static struct
static const struct
{
const char *name;
grub_size_t size;
@ -438,7 +437,6 @@ static struct
[0x04] = { "CRC64", 8},
[0x0A] = { "SHA256", 32},
};
#endif
/* Decode the Stream Header field (the first 12 bytes of the .xz Stream). */
static enum xz_ret dec_stream_header(struct xz_dec *s)
@ -470,9 +468,9 @@ static enum xz_ret dec_stream_header(struct xz_dec *s)
}
#endif
#ifndef GRUB_EMBED_DECOMPRESSOR
/*
* Decode the Stream Flags field. Of integrity checks, we support
* only none (Check ID = 0) and CRC32 (Check ID = 1).
* Decode the Stream Flags field.
*/
if (s->temp.buf[HEADER_MAGIC_SIZE] != 0
|| s->temp.buf[HEADER_MAGIC_SIZE + 1] >= ARRAY_SIZE (hashes)
@ -482,7 +480,6 @@ static enum xz_ret dec_stream_header(struct xz_dec *s)
s->hash_id = s->temp.buf[HEADER_MAGIC_SIZE + 1];
#ifndef GRUB_EMBED_DECOMPRESSOR
if (s->crc32)
{
s->crc32_context = kmalloc(s->crc32->contextsize, GFP_KERNEL);
@ -530,17 +527,15 @@ static enum xz_ret dec_stream_header(struct xz_dec *s)
s->hash->init(s->index.hash.hash_context);
s->hash->init(s->block.hash.hash_context);
}
#else
s->hash = 0;
#endif
#if 1
if (!s->hash)
return XZ_OPTIONS_ERROR;
#endif
}
else
{
#ifndef GRUB_EMBED_DECOMPRESSOR
s->hash = 0;
#endif
s->hash_size = 0;
}
@ -589,8 +584,10 @@ static enum xz_ret dec_stream_footer(struct xz_dec *s)
if ((s->index.size >> 2) != get_le32(s->temp.buf + 4))
return XZ_DATA_ERROR;
#ifndef GRUB_EMBED_DECOMPRESSOR
if (s->temp.buf[8] != 0 || s->temp.buf[9] != s->hash_id)
return XZ_DATA_ERROR;
#endif
/*
* Use XZ_STREAM_END instead of XZ_OK to be more convenient