Attachment 2028 Details for Bug 12081 – mppe patch

[patch] mppe patch

mppe.patch (text/plain), 1.01 KB, created by Alexey Shabalin on 2007-06-19 17:42:52 MSD

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Creator: Alexey Shabalin

Created: 2007-06-19 17:42:52 MSD

Size: 1.01 KB

patch

obsolete

>diff --git a/drivers/net/ppp_mppe.c b/drivers/net/ppp_mppe.c
>index d5bdd25..5ae80bb 100644
>--- a/drivers/net/ppp_mppe.c
>+++ b/drivers/net/ppp_mppe.c
>@@ -493,14 +493,14 @@ mppe_decompress(void *arg, unsigned char *ibuf, int isize, unsigned char *obuf,
> 
> 	/*
> 	 * Make sure we have enough room to decrypt the packet.
>-	 * Note that for our test we only subtract 1 byte whereas in
>-	 * mppe_compress() we added 2 bytes (+MPPE_OVHD);
>-	 * this is to account for possible PFC.
>+	 * To account for possible PFC we should only subtract 1
>+	 * byte whereas in mppe_compress() we added 2 bytes (+MPPE_OVHD);
>+	 * However, we assume no PFC, thus subtracting 2 bytes.
> 	 */
>-	if (osize < isize - MPPE_OVHD - 1) {
>+	if (osize < isize - MPPE_OVHD - 2) {
> 		printk(KERN_DEBUG "mppe_decompress[%d]: osize too small! "
> 		       "(have: %d need: %d)\n", state->unit,
>-		       osize, isize - MPPE_OVHD - 1);
>+		       osize, isize - MPPE_OVHD - 2);
> 		return DECOMP_ERROR;
> 	}
> 	osize = isize - MPPE_OVHD - 2;	/* assume no PFC */

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