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| author | Herbert Xu <herbert@gondor.apana.org.au> | 2005-10-10 21:11:08 -0700 |
|---|---|---|
| committer | David S. Miller <davem@davemloft.net> | 2005-10-10 21:11:08 -0700 |
| commit | a02a64223eddb410712b015fb3342c9a316ab70b (patch) | |
| tree | 771285d98ae94517f0aa0b16af0208d4cdc55dda /net/ipv4/esp4.c | |
| parent | e1c73b78e3706bd3c336d4730a01dd4081dfb7ee (diff) | |
| download | linux-stable-a02a64223eddb410712b015fb3342c9a316ab70b.tar.gz linux-stable-a02a64223eddb410712b015fb3342c9a316ab70b.tar.bz2 linux-stable-a02a64223eddb410712b015fb3342c9a316ab70b.zip | |
[IPSEC]: Use ALIGN macro in ESP
This patch uses the macro ALIGN in all the applicable spots for ESP.
Signed-off-by: Herbert Xu <herbert@gondor.apana.org.au>
Signed-off-by: David S. Miller <davem@davemloft.net>
Diffstat (limited to 'net/ipv4/esp4.c')
| -rw-r--r-- | net/ipv4/esp4.c | 11 |
1 files changed, 6 insertions, 5 deletions
diff --git a/net/ipv4/esp4.c b/net/ipv4/esp4.c index 1b5a09d1b90b..e911c6dd8296 100644 --- a/net/ipv4/esp4.c +++ b/net/ipv4/esp4.c @@ -5,6 +5,7 @@ #include <net/esp.h> #include <asm/scatterlist.h> #include <linux/crypto.h> +#include <linux/kernel.h> #include <linux/pfkeyv2.h> #include <linux/random.h> #include <net/icmp.h> @@ -42,10 +43,10 @@ static int esp_output(struct xfrm_state *x, struct sk_buff *skb) esp = x->data; alen = esp->auth.icv_trunc_len; tfm = esp->conf.tfm; - blksize = (crypto_tfm_alg_blocksize(tfm) + 3) & ~3; - clen = (clen + 2 + blksize-1)&~(blksize-1); + blksize = ALIGN(crypto_tfm_alg_blocksize(tfm), 4); + clen = ALIGN(clen + 2, blksize); if (esp->conf.padlen) - clen = (clen + esp->conf.padlen-1)&~(esp->conf.padlen-1); + clen = ALIGN(clen, esp->conf.padlen); if ((nfrags = skb_cow_data(skb, clen-skb->len+alen, &trailer)) < 0) goto error; @@ -307,13 +308,13 @@ static u32 esp4_get_max_size(struct xfrm_state *x, int mtu) u32 blksize = crypto_tfm_alg_blocksize(esp->conf.tfm); if (x->props.mode) { - mtu = (mtu + 2 + blksize-1)&~(blksize-1); + mtu = ALIGN(mtu + 2, blksize); } else { /* The worst case. */ mtu += 2 + blksize; } if (esp->conf.padlen) - mtu = (mtu + esp->conf.padlen-1)&~(esp->conf.padlen-1); + mtu = ALIGN(mtu, esp->conf.padlen); return mtu + x->props.header_len + esp->auth.icv_trunc_len; } |