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| author | Pawit Pornkitprasan <p.pawit@gmail.com> | 2012-11-20 19:27:29 +0700 |
|---|---|---|
| committer | Pawit Pornkitprasan <p.pawit@gmail.com> | 2012-11-20 19:27:29 +0700 |
| commit | cc7f0ca4b92d7da9d3a7bd674bfd454cc69e7780 (patch) | |
| tree | 6ffdbe4122642c18f7dbf3eecd93794d49987dcb /net/ipv4/esp4.c | |
| parent | 67196921fba94cf21b6c2de7da422d536fc9471d (diff) | |
| parent | 89d2d133c6947c04a8ab539b997f266535beaafe (diff) | |
| download | kernel_samsung_aries-cc7f0ca4b92d7da9d3a7bd674bfd454cc69e7780.zip kernel_samsung_aries-cc7f0ca4b92d7da9d3a7bd674bfd454cc69e7780.tar.gz kernel_samsung_aries-cc7f0ca4b92d7da9d3a7bd674bfd454cc69e7780.tar.bz2 | |
Merge 3.0.52
Merge branch 'linux-3.0.y' of git://git.kernel.org/pub/scm/linux/kernel/git/stable/linux-stable into jellybean-next
Conflicts:
drivers/net/tun.c
kernel/time/timekeeping.c
Change-Id: Iba7fc59ca05114d9e7bade8dfc5bb45229ebf075
Diffstat (limited to 'net/ipv4/esp4.c')
| -rw-r--r-- | net/ipv4/esp4.c | 24 |
1 files changed, 9 insertions, 15 deletions
diff --git a/net/ipv4/esp4.c b/net/ipv4/esp4.c index a5b4134..530787b 100644 --- a/net/ipv4/esp4.c +++ b/net/ipv4/esp4.c @@ -457,28 +457,22 @@ static u32 esp4_get_mtu(struct xfrm_state *x, int mtu) struct esp_data *esp = x->data; u32 blksize = ALIGN(crypto_aead_blocksize(esp->aead), 4); u32 align = max_t(u32, blksize, esp->padlen); - u32 rem; - - mtu -= x->props.header_len + crypto_aead_authsize(esp->aead); - rem = mtu & (align - 1); - mtu &= ~(align - 1); + unsigned int net_adj; switch (x->props.mode) { - case XFRM_MODE_TUNNEL: - break; - default: case XFRM_MODE_TRANSPORT: - /* The worst case */ - mtu -= blksize - 4; - mtu += min_t(u32, blksize - 4, rem); - break; case XFRM_MODE_BEET: - /* The worst case. */ - mtu += min_t(u32, IPV4_BEET_PHMAXLEN, rem); + net_adj = sizeof(struct iphdr); break; + case XFRM_MODE_TUNNEL: + net_adj = 0; + break; + default: + BUG(); } - return mtu - 2; + return ((mtu - x->props.header_len - crypto_aead_authsize(esp->aead) - + net_adj) & ~(align - 1)) + (net_adj - 2); } static void esp4_err(struct sk_buff *skb, u32 info) |