diff options
Diffstat (limited to 'net/bridge/netfilter/ebt_mark.c')
| -rw-r--r-- | net/bridge/netfilter/ebt_mark.c | 33 |
1 files changed, 32 insertions, 1 deletions
diff --git a/net/bridge/netfilter/ebt_mark.c b/net/bridge/netfilter/ebt_mark.c index 2fee7e8e2e93..2b5ce533d6b9 100644 --- a/net/bridge/netfilter/ebt_mark.c +++ b/net/bridge/netfilter/ebt_mark.c @@ -52,6 +52,32 @@ static bool ebt_mark_tg_check(const struct xt_tgchk_param *par) return false; return true; } +#ifdef CONFIG_COMPAT +struct compat_ebt_mark_t_info { + compat_ulong_t mark; + compat_uint_t target; +}; + +static void mark_tg_compat_from_user(void *dst, const void *src) +{ + const struct compat_ebt_mark_t_info *user = src; + struct ebt_mark_t_info *kern = dst; + + kern->mark = user->mark; + kern->target = user->target; +} + +static int mark_tg_compat_to_user(void __user *dst, const void *src) +{ + struct compat_ebt_mark_t_info __user *user = dst; + const struct ebt_mark_t_info *kern = src; + + if (put_user(kern->mark, &user->mark) || + put_user(kern->target, &user->target)) + return -EFAULT; + return 0; +} +#endif static struct xt_target ebt_mark_tg_reg __read_mostly = { .name = "mark", @@ -59,7 +85,12 @@ static struct xt_target ebt_mark_tg_reg __read_mostly = { .family = NFPROTO_BRIDGE, .target = ebt_mark_tg, .checkentry = ebt_mark_tg_check, - .targetsize = XT_ALIGN(sizeof(struct ebt_mark_t_info)), + .targetsize = sizeof(struct ebt_mark_t_info), +#ifdef CONFIG_COMPAT + .compatsize = sizeof(struct compat_ebt_mark_t_info), + .compat_from_user = mark_tg_compat_from_user, + .compat_to_user = mark_tg_compat_to_user, +#endif .me = THIS_MODULE, }; |