From 739674fb7febf116e7d647031fab16989a08a965 Mon Sep 17 00:00:00 2001 From: Jan Engelhardt Date: Fri, 26 Jun 2009 08:23:19 +0200 Subject: [PATCH] netfilter: xtables: constify args in compat copying functions Signed-off-by: Jan Engelhardt --- include/linux/netfilter/x_tables.h | 12 ++++++------ net/ipv4/netfilter/arp_tables.c | 4 ++-- net/ipv4/netfilter/ip_tables.c | 4 ++-- net/ipv4/netfilter/ipt_ULOG.c | 4 ++-- net/ipv6/netfilter/ip6_tables.c | 4 ++-- net/netfilter/x_tables.c | 8 ++++---- net/netfilter/xt_hashlimit.c | 4 ++-- net/netfilter/xt_limit.c | 4 ++-- 8 files changed, 22 insertions(+), 22 deletions(-) diff --git a/include/linux/netfilter/x_tables.h b/include/linux/netfilter/x_tables.h index a0a144a6c6d9..c61758f4be31 100644 --- a/include/linux/netfilter/x_tables.h +++ b/include/linux/netfilter/x_tables.h @@ -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 */ diff --git a/net/ipv4/netfilter/arp_tables.c b/net/ipv4/netfilter/arp_tables.c index 72723ea1054b..2303dc92a277 100644 --- a/net/ipv4/netfilter/arp_tables.c +++ b/net/ipv4/netfilter/arp_tables.c @@ -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; diff --git a/net/ipv4/netfilter/ip_tables.c b/net/ipv4/netfilter/ip_tables.c index 2057b1bb6178..2a4f745ce36e 100644 --- a/net/ipv4/netfilter/ip_tables.c +++ b/net/ipv4/netfilter/ip_tables.c @@ -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; diff --git a/net/ipv4/netfilter/ipt_ULOG.c b/net/ipv4/netfilter/ipt_ULOG.c index 399061c3fd7d..09a5d3f7cc41 100644 --- a/net/ipv4/netfilter/ipt_ULOG.c +++ b/net/ipv4/netfilter/ipt_ULOG.c @@ -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 = { diff --git a/net/ipv6/netfilter/ip6_tables.c b/net/ipv6/netfilter/ip6_tables.c index dcd7825fe7b6..3ff4fd50e96e 100644 --- a/net/ipv6/netfilter/ip6_tables.c +++ b/net/ipv6/netfilter/ip6_tables.c @@ -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; diff --git a/net/netfilter/x_tables.c b/net/netfilter/x_tables.c index 12503199826f..69c56287d518 100644 --- a/net/netfilter/x_tables.c +++ b/net/netfilter/x_tables.c @@ -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; diff --git a/net/netfilter/xt_hashlimit.c b/net/netfilter/xt_hashlimit.c index 017c95966aa8..e47fb805ffb4 100644 --- a/net/netfilter/xt_hashlimit.c +++ b/net/netfilter/xt_hashlimit.c @@ -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); diff --git a/net/netfilter/xt_limit.c b/net/netfilter/xt_limit.c index 2773be6a71dd..a0ca5339af41 100644 --- a/net/netfilter/xt_limit.c +++ b/net/netfilter/xt_limit.c @@ -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 = { -- 2.20.1