Commit 739674fb authored by Jan Engelhardt's avatar Jan Engelhardt

netfilter: xtables: constify args in compat copying functions

Signed-off-by: default avatarJan Engelhardt <jengelh@medozas.de>
parent b402405d
......@@ -286,8 +286,8 @@ struct xt_match {
void (*destroy)(const struct xt_mtdtor_param *);
#ifdef CONFIG_COMPAT
/* Called when userspace align differs from kernel space one */
void (*compat_from_user)(void *dst, void *src);
int (*compat_to_user)(void __user *dst, void *src);
void (*compat_from_user)(void *dst, const void *src);
int (*compat_to_user)(void __user *dst, const void *src);
#endif
/* Set this to THIS_MODULE if you are a module, otherwise NULL */
struct module *me;
......@@ -328,8 +328,8 @@ struct xt_target {
void (*destroy)(const struct xt_tgdtor_param *);
#ifdef CONFIG_COMPAT
/* Called when userspace align differs from kernel space one */
void (*compat_from_user)(void *dst, void *src);
int (*compat_to_user)(void __user *dst, void *src);
void (*compat_from_user)(void *dst, const void *src);
int (*compat_to_user)(void __user *dst, const void *src);
#endif
/* Set this to THIS_MODULE if you are a module, otherwise NULL */
struct module *me;
......@@ -593,13 +593,13 @@ extern short xt_compat_calc_jump(u_int8_t af, unsigned int offset);
extern int xt_compat_match_offset(const struct xt_match *match);
extern int xt_compat_match_from_user(struct xt_entry_match *m,
void **dstptr, unsigned int *size);
extern int xt_compat_match_to_user(struct xt_entry_match *m,
extern int xt_compat_match_to_user(const struct xt_entry_match *m,
void __user **dstptr, unsigned int *size);
extern int xt_compat_target_offset(const struct xt_target *target);
extern void xt_compat_target_from_user(struct xt_entry_target *t,
void **dstptr, unsigned int *size);
extern int xt_compat_target_to_user(struct xt_entry_target *t,
extern int xt_compat_target_to_user(const struct xt_entry_target *t,
void __user **dstptr, unsigned int *size);
#endif /* CONFIG_COMPAT */
......
......@@ -842,7 +842,7 @@ static int copy_entries_to_user(unsigned int total_size,
}
#ifdef CONFIG_COMPAT
static void compat_standard_from_user(void *dst, void *src)
static void compat_standard_from_user(void *dst, const void *src)
{
int v = *(compat_int_t *)src;
......@@ -851,7 +851,7 @@ static void compat_standard_from_user(void *dst, void *src)
memcpy(dst, &v, sizeof(v));
}
static int compat_standard_to_user(void __user *dst, void *src)
static int compat_standard_to_user(void __user *dst, const void *src)
{
compat_int_t cv = *(int *)src;
......
......@@ -1047,7 +1047,7 @@ copy_entries_to_user(unsigned int total_size,
}
#ifdef CONFIG_COMPAT
static void compat_standard_from_user(void *dst, void *src)
static void compat_standard_from_user(void *dst, const void *src)
{
int v = *(compat_int_t *)src;
......@@ -1056,7 +1056,7 @@ static void compat_standard_from_user(void *dst, void *src)
memcpy(dst, &v, sizeof(v));
}
static int compat_standard_to_user(void __user *dst, void *src)
static int compat_standard_to_user(void __user *dst, const void *src)
{
compat_int_t cv = *(int *)src;
......
......@@ -338,7 +338,7 @@ struct compat_ipt_ulog_info {
char prefix[ULOG_PREFIX_LEN];
};
static void ulog_tg_compat_from_user(void *dst, void *src)
static void ulog_tg_compat_from_user(void *dst, const void *src)
{
const struct compat_ipt_ulog_info *cl = src;
struct ipt_ulog_info l = {
......@@ -351,7 +351,7 @@ static void ulog_tg_compat_from_user(void *dst, void *src)
memcpy(dst, &l, sizeof(l));
}
static int ulog_tg_compat_to_user(void __user *dst, void *src)
static int ulog_tg_compat_to_user(void __user *dst, const void *src)
{
const struct ipt_ulog_info *l = src;
struct compat_ipt_ulog_info cl = {
......
......@@ -1079,7 +1079,7 @@ copy_entries_to_user(unsigned int total_size,
}
#ifdef CONFIG_COMPAT
static void compat_standard_from_user(void *dst, void *src)
static void compat_standard_from_user(void *dst, const void *src)
{
int v = *(compat_int_t *)src;
......@@ -1088,7 +1088,7 @@ static void compat_standard_from_user(void *dst, void *src)
memcpy(dst, &v, sizeof(v));
}
static int compat_standard_to_user(void __user *dst, void *src)
static int compat_standard_to_user(void __user *dst, const void *src)
{
compat_int_t cv = *(int *)src;
......
......@@ -485,8 +485,8 @@ int xt_compat_match_from_user(struct xt_entry_match *m, void **dstptr,
}
EXPORT_SYMBOL_GPL(xt_compat_match_from_user);
int xt_compat_match_to_user(struct xt_entry_match *m, void __user **dstptr,
unsigned int *size)
int xt_compat_match_to_user(const struct xt_entry_match *m,
void __user **dstptr, unsigned int *size)
{
const struct xt_match *match = m->u.kernel.match;
struct compat_xt_entry_match __user *cm = *dstptr;
......@@ -588,8 +588,8 @@ void xt_compat_target_from_user(struct xt_entry_target *t, void **dstptr,
}
EXPORT_SYMBOL_GPL(xt_compat_target_from_user);
int xt_compat_target_to_user(struct xt_entry_target *t, void __user **dstptr,
unsigned int *size)
int xt_compat_target_to_user(const struct xt_entry_target *t,
void __user **dstptr, unsigned int *size)
{
const struct xt_target *target = t->u.kernel.target;
struct compat_xt_entry_target __user *ct = *dstptr;
......
......@@ -775,7 +775,7 @@ struct compat_xt_hashlimit_info {
compat_uptr_t master;
};
static void hashlimit_mt_compat_from_user(void *dst, void *src)
static void hashlimit_mt_compat_from_user(void *dst, const void *src)
{
int off = offsetof(struct compat_xt_hashlimit_info, hinfo);
......@@ -783,7 +783,7 @@ static void hashlimit_mt_compat_from_user(void *dst, void *src)
memset(dst + off, 0, sizeof(struct compat_xt_hashlimit_info) - off);
}
static int hashlimit_mt_compat_to_user(void __user *dst, void *src)
static int hashlimit_mt_compat_to_user(void __user *dst, const void *src)
{
int off = offsetof(struct compat_xt_hashlimit_info, hinfo);
......
......@@ -148,7 +148,7 @@ struct compat_xt_rateinfo {
/* To keep the full "prev" timestamp, the upper 32 bits are stored in the
* master pointer, which does not need to be preserved. */
static void limit_mt_compat_from_user(void *dst, void *src)
static void limit_mt_compat_from_user(void *dst, const void *src)
{
const struct compat_xt_rateinfo *cm = src;
struct xt_rateinfo m = {
......@@ -162,7 +162,7 @@ static void limit_mt_compat_from_user(void *dst, void *src)
memcpy(dst, &m, sizeof(m));
}
static int limit_mt_compat_to_user(void __user *dst, void *src)
static int limit_mt_compat_to_user(void __user *dst, const void *src)
{
const struct xt_rateinfo *m = src;
struct compat_xt_rateinfo cm = {
......
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