From d5d1baa15f5b05e9110403724d5dc72d6d541e04 Mon Sep 17 00:00:00 2001 From: Jan Engelhardt Date: Fri, 26 Jun 2009 07:51:59 +0200 Subject: netfilter: xtables: add const qualifiers This should make it easier to remove redundant arguments later. Signed-off-by: Jan Engelhardt --- net/bridge/netfilter/ebtables.c | 59 ++++++++++++++++++++++------------------- 1 file changed, 32 insertions(+), 27 deletions(-) (limited to 'net/bridge') diff --git a/net/bridge/netfilter/ebtables.c b/net/bridge/netfilter/ebtables.c index 208f4e3..bcdf02d 100644 --- a/net/bridge/netfilter/ebtables.c +++ b/net/bridge/netfilter/ebtables.c @@ -82,7 +82,8 @@ static inline int ebt_do_match (struct ebt_entry_match *m, return m->u.match->match(skb, par) ? EBT_MATCH : EBT_NOMATCH; } -static inline int ebt_dev_check(char *entry, const struct net_device *device) +static inline int +ebt_dev_check(const char *entry, const struct net_device *device) { int i = 0; const char *devname; @@ -100,8 +101,9 @@ static inline int ebt_dev_check(char *entry, const struct net_device *device) #define FWINV2(bool,invflg) ((bool) ^ !!(e->invflags & invflg)) /* process standard matches */ -static inline int ebt_basic_match(struct ebt_entry *e, struct ethhdr *h, - const struct net_device *in, const struct net_device *out) +static inline int +ebt_basic_match(const struct ebt_entry *e, const struct ethhdr *h, + const struct net_device *in, const struct net_device *out) { int verdict, i; @@ -156,12 +158,12 @@ unsigned int ebt_do_table (unsigned int hook, struct sk_buff *skb, int i, nentries; struct ebt_entry *point; struct ebt_counter *counter_base, *cb_base; - struct ebt_entry_target *t; + const struct ebt_entry_target *t; int verdict, sp = 0; struct ebt_chainstack *cs; struct ebt_entries *chaininfo; - char *base; - struct ebt_table_info *private; + const char *base; + const struct ebt_table_info *private; bool hotdrop = false; struct xt_match_param mtpar; struct xt_target_param tgpar; @@ -395,7 +397,7 @@ ebt_check_watcher(struct ebt_entry_watcher *w, struct xt_tgchk_param *par, return 0; } -static int ebt_verify_pointers(struct ebt_replace *repl, +static int ebt_verify_pointers(const struct ebt_replace *repl, struct ebt_table_info *newinfo) { unsigned int limit = repl->entries_size; @@ -466,8 +468,8 @@ static int ebt_verify_pointers(struct ebt_replace *repl, * to parse the userspace data */ static inline int -ebt_check_entry_size_and_hooks(struct ebt_entry *e, - struct ebt_table_info *newinfo, +ebt_check_entry_size_and_hooks(const struct ebt_entry *e, + const struct ebt_table_info *newinfo, unsigned int *n, unsigned int *cnt, unsigned int *totalcnt, unsigned int *udc_cnt) { @@ -622,9 +624,8 @@ ebt_cleanup_entry(struct ebt_entry *e, struct net *net, unsigned int *cnt) } static inline int -ebt_check_entry(struct ebt_entry *e, - struct net *net, - struct ebt_table_info *newinfo, +ebt_check_entry(struct ebt_entry *e, struct net *net, + const struct ebt_table_info *newinfo, const char *name, unsigned int *cnt, struct ebt_cl_stack *cl_s, unsigned int udc_cnt) { @@ -743,12 +744,12 @@ cleanup_matches: * the hook mask for udc tells us from which base chains the udc can be * accessed. This mask is a parameter to the check() functions of the extensions */ -static int check_chainloops(struct ebt_entries *chain, struct ebt_cl_stack *cl_s, +static int check_chainloops(const struct ebt_entries *chain, struct ebt_cl_stack *cl_s, unsigned int udc_cnt, unsigned int hooknr, char *base) { int i, chain_nr = -1, pos = 0, nentries = chain->nentries, verdict; - struct ebt_entry *e = (struct ebt_entry *)chain->data; - struct ebt_entry_target *t; + const struct ebt_entry *e = (struct ebt_entry *)chain->data; + const struct ebt_entry_target *t; while (pos < nentries || chain_nr != -1) { /* end of udc, go back one 'recursion' step */ @@ -814,7 +815,7 @@ letscontinue: } /* do the parsing of the table/chains/entries/matches/watchers/targets, heh */ -static int translate_table(struct net *net, char *name, +static int translate_table(struct net *net, const char *name, struct ebt_table_info *newinfo) { unsigned int i, j, k, udc_cnt; @@ -934,7 +935,7 @@ static int translate_table(struct net *net, char *name, } /* called under write_lock */ -static void get_counters(struct ebt_counter *oldcounters, +static void get_counters(const struct ebt_counter *oldcounters, struct ebt_counter *counters, unsigned int nentries) { int i, cpu; @@ -957,7 +958,8 @@ static void get_counters(struct ebt_counter *oldcounters, } /* replace the table */ -static int do_replace(struct net *net, void __user *user, unsigned int len) +static int do_replace(struct net *net, const void __user *user, + unsigned int len) { int ret, i, countersize; struct ebt_table_info *newinfo; @@ -1237,7 +1239,8 @@ void ebt_unregister_table(struct net *net, struct ebt_table *table) } /* userspace just supplied us with counters */ -static int update_counters(struct net *net, void __user *user, unsigned int len) +static int update_counters(struct net *net, const void __user *user, + unsigned int len) { int i, ret; struct ebt_counter *tmp; @@ -1292,8 +1295,8 @@ free_tmp: return ret; } -static inline int ebt_make_matchname(struct ebt_entry_match *m, - char *base, char __user *ubase) +static inline int ebt_make_matchname(const struct ebt_entry_match *m, + const char *base, char __user *ubase) { char __user *hlp = ubase + ((char *)m - base); if (copy_to_user(hlp, m->u.match->name, EBT_FUNCTION_MAXNAMELEN)) @@ -1301,8 +1304,8 @@ static inline int ebt_make_matchname(struct ebt_entry_match *m, return 0; } -static inline int ebt_make_watchername(struct ebt_entry_watcher *w, - char *base, char __user *ubase) +static inline int ebt_make_watchername(const struct ebt_entry_watcher *w, + const char *base, char __user *ubase) { char __user *hlp = ubase + ((char *)w - base); if (copy_to_user(hlp , w->u.watcher->name, EBT_FUNCTION_MAXNAMELEN)) @@ -1310,11 +1313,12 @@ static inline int ebt_make_watchername(struct ebt_entry_watcher *w, return 0; } -static inline int ebt_make_names(struct ebt_entry *e, char *base, char __user *ubase) +static inline int +ebt_make_names(struct ebt_entry *e, const char *base, char __user *ubase) { int ret; char __user *hlp; - struct ebt_entry_target *t; + const struct ebt_entry_target *t; if (e->bitmask == 0) return 0; @@ -1335,10 +1339,11 @@ static inline int ebt_make_names(struct ebt_entry *e, char *base, char __user *u /* called with ebt_mutex locked */ static int copy_everything_to_user(struct ebt_table *t, void __user *user, - int *len, int cmd) + const int *len, int cmd) { struct ebt_replace tmp; - struct ebt_counter *counterstmp, *oldcounters; + struct ebt_counter *counterstmp; + const struct ebt_counter *oldcounters; unsigned int entries_size, nentries; char *entries; -- cgit v1.1