diff options
| author | Patrick McHardy <kaber@trash.net> | 2005-05-16 21:53:41 -0700 |
|---|---|---|
| committer | Linus Torvalds <torvalds@ppc970.osdl.org> | 2005-05-17 07:59:18 -0700 |
| commit | d0856009dbaf8eca2269d4129bb83940c0d95054 (patch) | |
| tree | e6c10d133f04ece55250f2fd84fc2b376624b8cd /mm/readahead.c | |
| parent | ba32311eb73f624a85a5fc2e043cda8e076f86ef (diff) | |
[PATCH] crypto: fix null encryption/compression
null_encrypt() needs to copy the data in case src and dst are disjunct,
null_compress() needs to copy the data in any case as far as I can tell. I
joined compress/decompress and encrypt/decrypt to avoid duplicating code.
Without this patch ESP null_enc packets look like this:
IP (tos 0x0, ttl 64, id 23130, offset 0, flags [DF], length: 128)
10.0.0.1 > 10.0.0.2: ESP(spi=0x0f9ca149,seq=0x4)
0x0000: 4500 0080 5a5a 4000 4032 cbef 0a00 0001 E...ZZ@.@2......
0x0010: 0a00 0002 0f9c a149 0000 0004 0000 0000 .......I........
0x0020: 0000 0000 0000 0000 0000 0000 0000 0000 ................
0x0030: 0000 0000 0000 0000 0000 0000 0000 0000 ................
0x0040: 0000 0000 0000 0000 0000 0000 0000 0000 ................
0x0050: 0000 ..
IP (tos 0x0, ttl 64, id 256, offset 0, flags [DF], length: 128)
10.0.0.2 > 10.0.0.1: ESP(spi=0x0e4f7b51,seq=0x2)
0x0000: 4500 0080 0100 4000 4032 254a 0a00 0002 E.....@.@2%J....
0x0010: 0a00 0001 0e4f 7b51 0000 0002 a8a8 a8a8 .....O{Q........
0x0020: a8a8 a8a8 a8a8 a8a8 a8a8 a8a8 a8a8 a8a8 ................
0x0030: a8a8 a8a8 a8a8 a8a8 a8a8 a8a8 a8a8 a8a8 ................
0x0040: a8a8 a8a8 a8a8 a8a8 a8a8 a8a8 a8a8 a8a8 ................
0x0050: a8a8 ..
Signed-off-by: Patrick McHardy <kaber@trash.net>
Signed-off-by: Herbert Xu <herbert@gondor.apana.org.au>
Signed-off-by: Andrew Morton <akpm@osdl.org>
Signed-off-by: Linus Torvalds <torvalds@osdl.org>
Diffstat (limited to 'mm/readahead.c')
0 files changed, 0 insertions, 0 deletions