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[NETFILTER]: xt_CONNMARK: add compat conversion functions
Signed-off-by: Patrick McHardy <kaber@trash.net> Signed-off-by: David S. Miller <davem@davemloft.net>
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f1eda05386
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@ -108,6 +108,37 @@ checkentry(const char *tablename,
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return 1;
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}
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#ifdef CONFIG_COMPAT
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struct compat_xt_connmark_target_info {
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compat_ulong_t mark, mask;
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u_int8_t mode;
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u_int8_t __pad1;
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u_int16_t __pad2;
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};
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static void compat_from_user(void *dst, void *src)
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{
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struct compat_xt_connmark_target_info *cm = src;
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struct xt_connmark_target_info m = {
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.mark = cm->mark,
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.mask = cm->mask,
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.mode = cm->mode,
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};
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memcpy(dst, &m, sizeof(m));
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}
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static int compat_to_user(void __user *dst, void *src)
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{
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struct xt_connmark_target_info *m = src;
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struct compat_xt_connmark_target_info cm = {
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.mark = m->mark,
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.mask = m->mask,
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.mode = m->mode,
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};
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return copy_to_user(dst, &cm, sizeof(cm)) ? -EFAULT : 0;
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}
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#endif /* CONFIG_COMPAT */
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static struct xt_target xt_connmark_target[] = {
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{
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.name = "CONNMARK",
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@ -115,6 +146,11 @@ static struct xt_target xt_connmark_target[] = {
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.checkentry = checkentry,
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.target = target,
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.targetsize = sizeof(struct xt_connmark_target_info),
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#ifdef CONFIG_COMPAT
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.compatsize = sizeof(struct compat_xt_connmark_target_info),
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.compat_from_user = compat_from_user,
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.compat_to_user = compat_to_user,
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#endif
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.me = THIS_MODULE
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},
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{
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