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| author | Jeff Garzik <jgarzik@pobox.com> | 2005-10-13 21:22:27 -0400 |
|---|---|---|
| committer | Jeff Garzik <jgarzik@pobox.com> | 2005-10-13 21:22:27 -0400 |
| commit | 59aee3c2a1e69fe5062bd1facb72d6fcea3f3f8f (patch) | |
| tree | b337d73229a69e399d4e4f7128b33ce734660e35 /net/ipv4/esp4.c | |
| parent | 0d69ae5fb7eb9ba3b54cf0ba4ef5ae591f31eef7 (diff) | |
| parent | 046d20b73960b7a2474b6d5e920d54c3fd7c23fe (diff) | |
| download | blackbird-op-linux-59aee3c2a1e69fe5062bd1facb72d6fcea3f3f8f.tar.gz blackbird-op-linux-59aee3c2a1e69fe5062bd1facb72d6fcea3f3f8f.zip | |
Merge branch 'master'
Diffstat (limited to 'net/ipv4/esp4.c')
| -rw-r--r-- | net/ipv4/esp4.c | 17 |
1 files changed, 9 insertions, 8 deletions
diff --git a/net/ipv4/esp4.c b/net/ipv4/esp4.c index 1b5a09d1b90b..1b18ce66e7b7 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; @@ -143,7 +144,7 @@ static int esp_input(struct xfrm_state *x, struct xfrm_decap_state *decap, struc struct ip_esp_hdr *esph; struct esp_data *esp = x->data; struct sk_buff *trailer; - int blksize = crypto_tfm_alg_blocksize(esp->conf.tfm); + int blksize = ALIGN(crypto_tfm_alg_blocksize(esp->conf.tfm), 4); int alen = esp->auth.icv_trunc_len; int elen = skb->len - sizeof(struct ip_esp_hdr) - esp->conf.ivlen - alen; int nfrags; @@ -304,16 +305,16 @@ static int esp_post_input(struct xfrm_state *x, struct xfrm_decap_state *decap, static u32 esp4_get_max_size(struct xfrm_state *x, int mtu) { struct esp_data *esp = x->data; - u32 blksize = crypto_tfm_alg_blocksize(esp->conf.tfm); + u32 blksize = ALIGN(crypto_tfm_alg_blocksize(esp->conf.tfm), 4); if (x->props.mode) { - mtu = (mtu + 2 + blksize-1)&~(blksize-1); + mtu = ALIGN(mtu + 2, blksize); } else { /* The worst case. */ - mtu += 2 + blksize; + mtu = ALIGN(mtu + 2, 4) + blksize - 4; } 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; } |
