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author | Florian Westphal <fw@strlen.de> | 2010-01-27 13:39:05 (GMT) |
---|---|---|
committer | Florian Westphal <fw@strlen.de> | 2010-02-16 16:27:20 (GMT) |
commit | 6e705f56a181118f6fbd35e6b443eab33df07290 (patch) | |
tree | a5a929b14b465bc7add5882c140cb4282d072816 | |
parent | 314ddca3b172fdb9c23a25c545505dbde557602e (diff) | |
download | linux-fsl-qoriq-6e705f56a181118f6fbd35e6b443eab33df07290.tar.xz |
netfilter: ebtables: mark: add CONFIG_COMPAT support
Add the required handlers to convert 32 bit
ebtables mark match and match target structs to 64bit layout.
Signed-off-by: Florian Westphal <fwestphal@astaro.com>
-rw-r--r-- | net/bridge/netfilter/ebt_mark.c | 31 | ||||
-rw-r--r-- | net/bridge/netfilter/ebt_mark_m.c | 37 |
2 files changed, 68 insertions, 0 deletions
diff --git a/net/bridge/netfilter/ebt_mark.c b/net/bridge/netfilter/ebt_mark.c index 153e167..2b5ce53 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", @@ -60,6 +86,11 @@ static struct xt_target ebt_mark_tg_reg __read_mostly = { .target = ebt_mark_tg, .checkentry = ebt_mark_tg_check, .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, }; diff --git a/net/bridge/netfilter/ebt_mark_m.c b/net/bridge/netfilter/ebt_mark_m.c index 89abf403..8de8c39 100644 --- a/net/bridge/netfilter/ebt_mark_m.c +++ b/net/bridge/netfilter/ebt_mark_m.c @@ -35,6 +35,38 @@ static bool ebt_mark_mt_check(const struct xt_mtchk_param *par) return true; } + +#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, @@ -42,6 +74,11 @@ static struct xt_match ebt_mark_mt_reg __read_mostly = { .match = ebt_mark_mt, .checkentry = ebt_mark_mt_check, .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, }; |