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authorRichard Weinberger <richard@nod.at>2018-10-18 16:36:41 +0200
committerDavid Oberhollenzer <david.oberhollenzer@sigma-star.at>2018-11-01 12:33:11 +0100
commit2fd902f11823433ba9332da3106253b674563542 (patch)
tree188bab125011bfb896224bb6b81bb824561d1003 /ubifs-utils
parent29ef97363d352ab157c1c5422ac5de43c038e60e (diff)
mkfs.ubifs: Make r5 hash binary string aware
As of now all filenames known by UBIFS are strings with a NUL terminator. With encrypted filenames a filename can be any binary string and the r5 function cannot search for the NUL terminator. UBIFS always knows how long a filename is, therefore we can change the hash function to iterate over the filename length to work correctly with binary strings. Signed-off-by: Richard Weinberger <richard@nod.at> Signed-off-by: David Oberhollenzer <david.oberhollenzer@sigma-star.at>
Diffstat (limited to 'ubifs-utils')
-rw-r--r--ubifs-utils/mkfs.ubifs/key.h3
1 files changed, 1 insertions, 2 deletions
diff --git a/ubifs-utils/mkfs.ubifs/key.h b/ubifs-utils/mkfs.ubifs/key.h
index c16d0a8..0c7922b 100644
--- a/ubifs-utils/mkfs.ubifs/key.h
+++ b/ubifs-utils/mkfs.ubifs/key.h
@@ -64,9 +64,8 @@ static inline uint32_t key_r5_hash(const char *s, int len)
{
uint32_t a = 0;
const signed char *str = (const signed char *)s;
- (void)len;
- while (*str) {
+ while (len--) {
a += *str << 4;
a += *str >> 4;
a *= 11;