--- zzzz-none-000/linux-2.6.32.61/net/bridge/netfilter/ebt_mark_m.c 2013-06-10 09:43:48.000000000 +0000 +++ virian-300e-630/linux-2.6.32.61/net/bridge/netfilter/ebt_mark_m.c 2014-08-12 13:03:17.000000000 +0000 @@ -13,7 +13,7 @@ #include static bool -ebt_mark_mt(const struct sk_buff *skb, const struct xt_match_param *par) +ebt_mark_mt(const struct sk_buff *skb, struct xt_action_param *par) { const struct ebt_mark_m_info *info = par->matchinfo; @@ -22,26 +22,63 @@ return ((skb->mark & info->mask) == info->mark) ^ info->invert; } -static bool ebt_mark_mt_check(const struct xt_mtchk_param *par) +static int ebt_mark_mt_check(const struct xt_mtchk_param *par) { const struct ebt_mark_m_info *info = par->matchinfo; if (info->bitmask & ~EBT_MARK_MASK) - return false; + return -EINVAL; if ((info->bitmask & EBT_MARK_OR) && (info->bitmask & EBT_MARK_AND)) - return false; + return -EINVAL; if (!info->bitmask) - return false; - return true; + return -EINVAL; + return 0; } + +#ifdef CONFIG_COMPAT +struct compat_ebt_mark_m_info { + compat_ulong_t mark, mask; + uint8_t invert, bitmask; +}; + +static void mark_mt_compat_from_user(void *dst, const void *src) +{ + const struct compat_ebt_mark_m_info *user = src; + struct ebt_mark_m_info *kern = dst; + + kern->mark = user->mark; + kern->mask = user->mask; + kern->invert = user->invert; + kern->bitmask = user->bitmask; +} + +static int mark_mt_compat_to_user(void __user *dst, const void *src) +{ + struct compat_ebt_mark_m_info __user *user = dst; + const struct ebt_mark_m_info *kern = src; + + if (put_user(kern->mark, &user->mark) || + put_user(kern->mask, &user->mask) || + put_user(kern->invert, &user->invert) || + put_user(kern->bitmask, &user->bitmask)) + return -EFAULT; + return 0; +} +#endif + static struct xt_match ebt_mark_mt_reg __read_mostly = { .name = "mark_m", .revision = 0, .family = NFPROTO_BRIDGE, .match = ebt_mark_mt, .checkentry = ebt_mark_mt_check, - .matchsize = XT_ALIGN(sizeof(struct ebt_mark_m_info)), + .matchsize = sizeof(struct ebt_mark_m_info), +#ifdef CONFIG_COMPAT + .compatsize = sizeof(struct compat_ebt_mark_m_info), + .compat_from_user = mark_mt_compat_from_user, + .compat_to_user = mark_mt_compat_to_user, +#endif .me = THIS_MODULE, };