/* ----------------------------------------------------------------------------- */
static bool has_col( const VTable * tab, const char * colname )
{
bool res = false;
struct KNamelist * columns;
rc_t rc = VTableListReadableColumns( tab, &columns );
if ( rc == 0 )
{
uint32_t count;
rc = KNamelistCount( columns, &count );
if ( rc == 0 && count > 0 )
{
uint32_t idx;
size_t colname_size = string_size( colname );
for ( idx = 0; idx < count && rc == 0 && !res; ++idx )
{
const char * a_name;
rc = KNamelistGet ( columns, idx, &a_name );
if ( rc == 0 )
{
int cmp;
size_t a_name_size = string_size( a_name );
uint32_t max_chars = ( uint32_t )colname_size;
if ( a_name_size > max_chars ) max_chars = ( uint32_t )a_name_size;
cmp = strcase_cmp ( colname, colname_size,
a_name, a_name_size,
max_chars );
res = ( cmp == 0 );
}
}
}
KNamelistRelease( columns );
}
return res;
}
static
rc_t CC
XFS_KeyType_ZHR ( const char * EncType, KKeyType * Type )
{
size_t B;
const char * C;
B = 0;
C = NULL;
XFS_CAN ( Type )
* Type = kkeyNone;
if ( EncType == NULL ) {
* Type = KKeyTypeDefault;
return 0;
}
B = string_size ( EncType );
C = "AES128";
if ( strcase_cmp ( C, string_size ( C ), EncType, B, B ) == 0 ) {
* Type = kkeyAES128;
return 0;
}
C = "AES192";
if ( strcase_cmp ( C, string_size ( C ), EncType, B, B ) == 0 ) {
* Type = kkeyAES192;
return 0;
}
C = "AES256";
if ( strcase_cmp ( C, string_size ( C ), EncType, B, B ) == 0 ) {
* Type = kkeyAES256;
return 0;
}
return XFS_RC ( rcInvalid );
} /* XFS_KeyType_ZHR () */
static rc_t CC scan_config_dir(const KDirectory* dir,
uint32_t type, const char* name, void* data)
{
rc_t rc = 0;
assert(data);
switch (type) {
case kptFile:
case kptFile | kptAlias: {
size_t sz = strlen(name);
if (sz >= 5 && strcase_cmp(&name[sz - 4], 4, ".kfg", 4, 4) == 0) {
strcpy(data, name);
rc = RC(rcExe, rcDirectory, rcListing, rcFile, rcExists);
}
break;
}
}
return rc;
}
static
rc_t CC KWGAEncFileRead (const KWGAEncFile *cself,
uint64_t pos,
void *buffer,
size_t bsize,
size_t *num_read)
{
KWGAEncFile * self = (KWGAEncFile *)cself; /* mutable values */
rc_t rc = 0;
assert (cself);
assert (buffer);
assert (num_read);
*num_read = 0;
/* are we even within the file? If not just say no. Drugs are bad Mmmkay */
if (pos >= self->file_size)
{}
/* are we not reading from out what is already in the decrypted buffer space? */
else
{
if ((self->buffer.valid == 0) ||
(pos < self->buffer.offset) ||
(pos >= (self->buffer.offset + self->buffer.valid)))
{
if (pos < self->block_size) /* we'll be reading from the first 'block' */
{
rc = KWGAEncFileReadInt (self, 0, self->block_size);
if (rc)
{
LOGERR (klogErr, rc, "error reading first data block of"
" encrypted file");
return rc;
}
if (self->buffer.valid > self->block_size)
{
rc = RC (rcFS, rcFile, rcReading, rcBuffer, rcTooBig);
LOGERR (klogInt, rc, "read wrong amount for first block");
return rc;
}
else
{
size_t md5_size;
size_t nudge = 0;
char md51_comp [32];
if (self->buffer.valid & (ECB_BYTES-1))
nudge = ECB_BYTES - (self->buffer.valid & (ECB_BYTES-1));
if (nudge)
memset (self->buffer.data + self->buffer.valid, 0, nudge);
md5_size = self->buffer.valid + nudge;
CalcMD5 (self->buffer.data, md5_size, md51_comp);
#if 1
if (strcase_cmp (self->md51, string_size(self->md51),
md51_comp, string_size(md51_comp), 32) != 0)
#else
if (strncasecmp (self->md51, md51_comp, 32) != 0)
#endif
{
rc = RC (rcFS, rcFile, rcReading, rcConstraint, rcCorrupt);
LOGERR (klogErr, rc, "MD5 does not match in decryption");
return rc;
}
}
}
else /* if (pos >= self->block_size) */
{
rc = KWGAEncFileReadInt (self, (pos & ~ ( uint64_t ) (16-1)),
DEFAULT_BUFF_SIZE);
if (rc)
{
LOGERR (klogErr, rc, "error reading data block of"
" encrypted file");
return rc;
}
} /* if (pos < self->block_size) */
} /* if ((self->buffer.valid == 0) || etc. */
/* if here we have a valid buffer and it contains the start pos requested */
/* assert (pos >= self->buffer.offset); */
/* assert (pos < (self->buffer.offset +self->buffer.valid)); */
{
size_t start;
size_t limit;
/* find offset of start for copy within the buffer */
start = (size_t)(pos - self->buffer.offset);
/* how many bytes available starting here */
limit = self->buffer.valid - start;
if (pos + limit > self->file_size)
limit = self->file_size - pos;
/* are we asking to read more than we have? is so trim the request */
if (limit < bsize)
bsize = limit;
memmove (buffer, self->buffer.data + start, bsize);
*num_read = bsize;
}
}
return 0;
}
static int rgn_str_cmp( const char *a, const char *b )
{
size_t asize = string_size ( a );
size_t bsize = string_size ( b );
return strcase_cmp ( a, asize, b, bsize, ( asize > bsize ) ? asize : bsize );
}
static int sized_str_cmp( const char *a, const char *b )
{
size_t asize = string_size ( a );
size_t bsize = string_size ( b );
return strcase_cmp ( a, asize, b, bsize, (uint32_t) ( ( asize > bsize ) ? asize : bsize ) );
}
