mirror of https://gitee.com/openkylin/linux.git
[NETFILTER]: ip_tables: reformat compat code
The compat code has some very odd formating, clean it up before porting it to ip6_tables. Signed-off-by: Patrick McHardy <kaber@trash.net> Signed-off-by: David S. Miller <davem@davemloft.net>
This commit is contained in:
Patrick McHardy
David S. Miller
parent
ac8e27fd89
commit
4b4782486d
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@ -600,8 +600,8 @@ check_entry(struct ipt_entry *e, const char *name)
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}
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static inline int check_match(struct ipt_entry_match *m, const char *name,
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const struct ipt_ip *ip, unsigned int hookmask,
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unsigned int *i)
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const struct ipt_ip *ip,
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unsigned int hookmask, unsigned int *i)
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{
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struct xt_match *match;
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int ret;
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@ -624,10 +624,10 @@ static inline int check_match(struct ipt_entry_match *m, const char *name,
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static inline int
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find_check_match(struct ipt_entry_match *m,
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const char *name,
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const struct ipt_ip *ip,
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unsigned int hookmask,
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unsigned int *i)
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const char *name,
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const struct ipt_ip *ip,
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unsigned int hookmask,
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unsigned int *i)
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{
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struct xt_match *match;
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int ret;
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@ -663,8 +663,8 @@ static inline int check_target(struct ipt_entry *e, const char *name)
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name, e->comefrom, e->ip.proto,
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e->ip.invflags & IPT_INV_PROTO);
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if (!ret && t->u.kernel.target->checkentry
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&& !t->u.kernel.target->checkentry(name, e, target,
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t->data, e->comefrom)) {
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&& !t->u.kernel.target->checkentry(name, e, target, t->data,
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e->comefrom)) {
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duprintf("ip_tables: check failed for `%s'.\n",
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t->u.kernel.target->name);
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ret = -EINVAL;
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@ -674,7 +674,7 @@ static inline int check_target(struct ipt_entry *e, const char *name)
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static inline int
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find_check_entry(struct ipt_entry *e, const char *name, unsigned int size,
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unsigned int *i)
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unsigned int *i)
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{
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struct ipt_entry_target *t;
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struct xt_target *target;
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@ -687,14 +687,14 @@ find_check_entry(struct ipt_entry *e, const char *name, unsigned int size,
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j = 0;
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ret = IPT_MATCH_ITERATE(e, find_check_match, name, &e->ip,
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e->comefrom, &j);
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e->comefrom, &j);
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if (ret != 0)
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goto cleanup_matches;
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t = ipt_get_target(e);
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target = try_then_request_module(xt_find_target(AF_INET,
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t->u.user.name,
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t->u.user.revision),
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t->u.user.name,
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t->u.user.revision),
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"ipt_%s", t->u.user.name);
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if (IS_ERR(target) || !target) {
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duprintf("find_check_entry: `%s' not found\n", t->u.user.name);
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@ -1020,7 +1020,7 @@ struct compat_delta {
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short delta;
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};
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static struct compat_delta *compat_offsets = NULL;
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static struct compat_delta *compat_offsets;
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static int compat_add_offset(unsigned int offset, short delta)
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{
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@ -1046,7 +1046,7 @@ static void compat_flush_offsets(void)
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struct compat_delta *tmp, *next;
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if (compat_offsets) {
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for(tmp = compat_offsets; tmp; tmp = next) {
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for (tmp = compat_offsets; tmp; tmp = next) {
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next = tmp->next;
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kfree(tmp);
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}
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@ -1059,7 +1059,7 @@ static short compat_calc_jump(unsigned int offset)
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struct compat_delta *tmp;
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short delta;
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for(tmp = compat_offsets, delta = 0; tmp; tmp = tmp->next)
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for (tmp = compat_offsets, delta = 0; tmp; tmp = tmp->next)
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if (tmp->offset < offset)
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delta += tmp->delta;
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return delta;
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@ -1084,15 +1084,15 @@ static int compat_standard_to_user(void __user *dst, void *src)
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}
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static inline int
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compat_calc_match(struct ipt_entry_match *m, int * size)
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compat_calc_match(struct ipt_entry_match *m, int *size)
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{
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*size += xt_compat_match_offset(m->u.kernel.match);
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return 0;
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}
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static int compat_calc_entry(struct ipt_entry *e,
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const struct xt_table_info *info,
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void *base, struct xt_table_info *newinfo)
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const struct xt_table_info *info,
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void *base, struct xt_table_info *newinfo)
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{
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struct ipt_entry_target *t;
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unsigned int entry_offset;
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@ -1109,18 +1109,18 @@ static int compat_calc_entry(struct ipt_entry *e,
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return ret;
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for (i = 0; i < NF_INET_NUMHOOKS; i++) {
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if (info->hook_entry[i] && (e < (struct ipt_entry *)
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(base + info->hook_entry[i])))
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if (info->hook_entry[i] &&
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(e < (struct ipt_entry *)(base + info->hook_entry[i])))
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newinfo->hook_entry[i] -= off;
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if (info->underflow[i] && (e < (struct ipt_entry *)
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(base + info->underflow[i])))
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if (info->underflow[i] &&
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(e < (struct ipt_entry *)(base + info->underflow[i])))
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newinfo->underflow[i] -= off;
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}
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return 0;
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}
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static int compat_table_info(const struct xt_table_info *info,
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struct xt_table_info *newinfo)
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struct xt_table_info *newinfo)
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{
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void *loc_cpu_entry;
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@ -1132,7 +1132,8 @@ static int compat_table_info(const struct xt_table_info *info,
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newinfo->initial_entries = 0;
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loc_cpu_entry = info->entries[raw_smp_processor_id()];
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return IPT_ENTRY_ITERATE(loc_cpu_entry, info->size,
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compat_calc_entry, info, loc_cpu_entry, newinfo);
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compat_calc_entry, info, loc_cpu_entry,
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newinfo);
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}
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#endif
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@ -1157,7 +1158,7 @@ static int get_info(void __user *user, int *len, int compat)
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xt_compat_lock(AF_INET);
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#endif
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t = try_then_request_module(xt_find_table_lock(AF_INET, name),
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"iptable_%s", name);
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"iptable_%s", name);
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if (t && !IS_ERR(t)) {
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struct ipt_getinfo info;
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struct xt_table_info *private = t->private;
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@ -1167,14 +1168,14 @@ static int get_info(void __user *user, int *len, int compat)
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struct xt_table_info tmp;
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ret = compat_table_info(private, &tmp);
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compat_flush_offsets();
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private = &tmp;
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private = &tmp;
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}
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#endif
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info.valid_hooks = t->valid_hooks;
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memcpy(info.hook_entry, private->hook_entry,
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sizeof(info.hook_entry));
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sizeof(info.hook_entry));
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memcpy(info.underflow, private->underflow,
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sizeof(info.underflow));
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sizeof(info.underflow));
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info.num_entries = private->number;
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info.size = private->size;
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strcpy(info.name, name);
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@ -1240,8 +1241,8 @@ get_entries(struct ipt_get_entries __user *uptr, int *len)
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static int
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__do_replace(const char *name, unsigned int valid_hooks,
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struct xt_table_info *newinfo, unsigned int num_counters,
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void __user *counters_ptr)
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struct xt_table_info *newinfo, unsigned int num_counters,
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void __user *counters_ptr)
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{
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int ret;
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struct xt_table *t;
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@ -1289,7 +1290,8 @@ __do_replace(const char *name, unsigned int valid_hooks,
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get_counters(oldinfo, counters);
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/* Decrease module usage counts and free resource */
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loc_cpu_old_entry = oldinfo->entries[raw_smp_processor_id()];
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IPT_ENTRY_ITERATE(loc_cpu_old_entry, oldinfo->size, cleanup_entry,NULL);
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IPT_ENTRY_ITERATE(loc_cpu_old_entry, oldinfo->size, cleanup_entry,
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NULL);
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xt_free_table_info(oldinfo);
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if (copy_to_user(counters_ptr, counters,
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sizeof(struct xt_counters) * num_counters) != 0)
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@ -1346,9 +1348,8 @@ do_replace(void __user *user, unsigned int len)
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duprintf("ip_tables: Translated table\n");
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ret = __do_replace(tmp.name, tmp.valid_hooks,
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newinfo, tmp.num_counters,
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tmp.counters);
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ret = __do_replace(tmp.name, tmp.valid_hooks, newinfo,
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tmp.num_counters, tmp.counters);
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if (ret)
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goto free_newinfo_untrans;
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return 0;
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@ -1523,19 +1524,19 @@ compat_copy_entry_to_user(struct ipt_entry *e, void __user **dstptr,
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static inline int
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compat_find_calc_match(struct ipt_entry_match *m,
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const char *name,
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const struct ipt_ip *ip,
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unsigned int hookmask,
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int *size, int *i)
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const char *name,
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const struct ipt_ip *ip,
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unsigned int hookmask,
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int *size, int *i)
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{
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struct xt_match *match;
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match = try_then_request_module(xt_find_match(AF_INET, m->u.user.name,
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m->u.user.revision),
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m->u.user.revision),
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"ipt_%s", m->u.user.name);
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if (IS_ERR(match) || !match) {
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duprintf("compat_check_calc_match: `%s' not found\n",
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m->u.user.name);
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m->u.user.name);
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return match ? PTR_ERR(match) : -ENOENT;
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}
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m->u.kernel.match = match;
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@ -1572,14 +1573,14 @@ compat_release_entry(struct ipt_entry *e, unsigned int *i)
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static inline int
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check_compat_entry_size_and_hooks(struct ipt_entry *e,
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struct xt_table_info *newinfo,
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unsigned int *size,
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unsigned char *base,
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unsigned char *limit,
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unsigned int *hook_entries,
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unsigned int *underflows,
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unsigned int *i,
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const char *name)
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struct xt_table_info *newinfo,
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unsigned int *size,
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unsigned char *base,
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unsigned char *limit,
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unsigned int *hook_entries,
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unsigned int *underflows,
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unsigned int *i,
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const char *name)
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{
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struct ipt_entry_target *t;
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struct xt_target *target;
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@ -1594,7 +1595,7 @@ check_compat_entry_size_and_hooks(struct ipt_entry *e,
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}
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if (e->next_offset < sizeof(struct compat_ipt_entry) +
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sizeof(struct compat_xt_entry_target)) {
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sizeof(struct compat_xt_entry_target)) {
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duprintf("checking: element %p size %u\n",
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e, e->next_offset);
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return -EINVAL;
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@ -1608,18 +1609,18 @@ check_compat_entry_size_and_hooks(struct ipt_entry *e,
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entry_offset = (void *)e - (void *)base;
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j = 0;
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ret = IPT_MATCH_ITERATE(e, compat_find_calc_match, name, &e->ip,
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e->comefrom, &off, &j);
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e->comefrom, &off, &j);
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if (ret != 0)
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goto release_matches;
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t = ipt_get_target(e);
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target = try_then_request_module(xt_find_target(AF_INET,
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t->u.user.name,
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t->u.user.revision),
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t->u.user.name,
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t->u.user.revision),
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"ipt_%s", t->u.user.name);
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if (IS_ERR(target) || !target) {
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duprintf("check_compat_entry_size_and_hooks: `%s' not found\n",
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t->u.user.name);
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t->u.user.name);
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ret = target ? PTR_ERR(target) : -ENOENT;
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goto release_matches;
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}
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@ -1653,17 +1654,20 @@ check_compat_entry_size_and_hooks(struct ipt_entry *e,
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return ret;
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}
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static inline int compat_copy_match_from_user(struct ipt_entry_match *m,
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void **dstptr, compat_uint_t *size, const char *name,
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const struct ipt_ip *ip, unsigned int hookmask)
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static inline int
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compat_copy_match_from_user(struct ipt_entry_match *m,
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void **dstptr, compat_uint_t *size,
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const char *name, const struct ipt_ip *ip,
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unsigned int hookmask)
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{
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xt_compat_match_from_user(m, dstptr, size);
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return 0;
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}
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static int compat_copy_entry_from_user(struct ipt_entry *e, void **dstptr,
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unsigned int *size, const char *name,
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struct xt_table_info *newinfo, unsigned char *base)
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static int
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compat_copy_entry_from_user(struct ipt_entry *e, void **dstptr,
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unsigned int *size, const char *name,
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struct xt_table_info *newinfo, unsigned char *base)
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{
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struct ipt_entry_target *t;
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struct xt_target *target;
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@ -1678,7 +1682,7 @@ static int compat_copy_entry_from_user(struct ipt_entry *e, void **dstptr,
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*dstptr += sizeof(struct compat_ipt_entry);
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ret = IPT_MATCH_ITERATE(e, compat_copy_match_from_user, dstptr, size,
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name, &de->ip, de->comefrom);
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name, &de->ip, de->comefrom);
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if (ret)
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return ret;
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de->target_offset = e->target_offset - (origsize - *size);
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@ -1697,7 +1701,7 @@ static int compat_copy_entry_from_user(struct ipt_entry *e, void **dstptr,
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}
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static inline int compat_check_entry(struct ipt_entry *e, const char *name,
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unsigned int *i)
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unsigned int *i)
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{
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int j, ret;
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@ -1720,13 +1724,13 @@ static inline int compat_check_entry(struct ipt_entry *e, const char *name,
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static int
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translate_compat_table(const char *name,
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unsigned int valid_hooks,
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struct xt_table_info **pinfo,
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void **pentry0,
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unsigned int total_size,
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unsigned int number,
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unsigned int *hook_entries,
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unsigned int *underflows)
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unsigned int valid_hooks,
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struct xt_table_info **pinfo,
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void **pentry0,
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unsigned int total_size,
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unsigned int number,
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unsigned int *hook_entries,
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unsigned int *underflows)
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{
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unsigned int i, j;
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struct xt_table_info *newinfo, *info;
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@ -1793,10 +1797,10 @@ translate_compat_table(const char *name,
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}
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entry1 = newinfo->entries[raw_smp_processor_id()];
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pos = entry1;
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size = total_size;
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size = total_size;
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ret = IPT_ENTRY_ITERATE(entry0, total_size,
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compat_copy_entry_from_user, &pos, &size,
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name, newinfo, entry1);
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compat_copy_entry_from_user, &pos, &size,
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name, newinfo, entry1);
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compat_flush_offsets();
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xt_compat_unlock(AF_INET);
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if (ret)
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@ -1808,11 +1812,11 @@ translate_compat_table(const char *name,
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i = 0;
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ret = IPT_ENTRY_ITERATE(entry1, newinfo->size, compat_check_entry,
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name, &i);
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name, &i);
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if (ret) {
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j -= i;
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IPT_ENTRY_ITERATE_CONTINUE(entry1, newinfo->size, i,
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compat_release_entry, &j);
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compat_release_entry, &j);
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IPT_ENTRY_ITERATE(entry1, newinfo->size, cleanup_entry, &i);
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xt_free_table_info(newinfo);
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return ret;
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@ -1873,22 +1877,22 @@ compat_do_replace(void __user *user, unsigned int len)
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}
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ret = translate_compat_table(tmp.name, tmp.valid_hooks,
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&newinfo, &loc_cpu_entry, tmp.size,
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tmp.num_entries, tmp.hook_entry, tmp.underflow);
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&newinfo, &loc_cpu_entry, tmp.size,
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tmp.num_entries, tmp.hook_entry,
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tmp.underflow);
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if (ret != 0)
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goto free_newinfo;
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duprintf("compat_do_replace: Translated table\n");
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ret = __do_replace(tmp.name, tmp.valid_hooks,
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newinfo, tmp.num_counters,
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compat_ptr(tmp.counters));
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ret = __do_replace(tmp.name, tmp.valid_hooks, newinfo,
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tmp.num_counters, compat_ptr(tmp.counters));
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if (ret)
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goto free_newinfo_untrans;
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return 0;
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free_newinfo_untrans:
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IPT_ENTRY_ITERATE(loc_cpu_entry, newinfo->size, cleanup_entry,NULL);
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IPT_ENTRY_ITERATE(loc_cpu_entry, newinfo->size, cleanup_entry, NULL);
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free_newinfo:
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xt_free_table_info(newinfo);
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return ret;
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@ -1896,7 +1900,7 @@ compat_do_replace(void __user *user, unsigned int len)
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|
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static int
|
||||
compat_do_ipt_set_ctl(struct sock *sk, int cmd, void __user *user,
|
||||
unsigned int len)
|
||||
unsigned int len)
|
||||
{
|
||||
int ret;
|
||||
|
||||
|
|
@ -1920,15 +1924,15 @@ compat_do_ipt_set_ctl(struct sock *sk, int cmd, void __user *user,
|
|||
return ret;
|
||||
}
|
||||
|
||||
struct compat_ipt_get_entries
|
||||
{
|
||||
struct compat_ipt_get_entries {
|
||||
char name[IPT_TABLE_MAXNAMELEN];
|
||||
compat_uint_t size;
|
||||
struct compat_ipt_entry entrytable[0];
|
||||
};
|
||||
|
||||
static int compat_copy_entries_to_user(unsigned int total_size,
|
||||
struct xt_table *table, void __user *userptr)
|
||||
static int
|
||||
compat_copy_entries_to_user(unsigned int total_size, struct xt_table *table,
|
||||
void __user *userptr)
|
||||
{
|
||||
struct xt_counters *counters;
|
||||
struct xt_table_info *private = table->private;
|
||||
|
|
@ -1964,10 +1968,9 @@ compat_get_entries(struct compat_ipt_get_entries __user *uptr, int *len)
|
|||
struct compat_ipt_get_entries get;
|
||||
struct xt_table *t;
|
||||
|
||||
|
||||
if (*len < sizeof(get)) {
|
||||
duprintf("compat_get_entries: %u < %u\n",
|
||||
*len, (unsigned int)sizeof(get));
|
||||
*len, (unsigned int)sizeof(get));
|
||||
return -EINVAL;
|
||||
}
|
||||
|
||||
|
|
@ -1976,8 +1979,8 @@ compat_get_entries(struct compat_ipt_get_entries __user *uptr, int *len)
|
|||
|
||||
if (*len != sizeof(struct compat_ipt_get_entries) + get.size) {
|
||||
duprintf("compat_get_entries: %u != %u\n", *len,
|
||||
(unsigned int)(sizeof(struct compat_ipt_get_entries) +
|
||||
get.size));
|
||||
(unsigned int)(sizeof(struct compat_ipt_get_entries) +
|
||||
get.size));
|
||||
return -EINVAL;
|
||||
}
|
||||
|
||||
|
|
@ -1991,7 +1994,7 @@ compat_get_entries(struct compat_ipt_get_entries __user *uptr, int *len)
|
|||
ret = compat_table_info(private, &info);
|
||||
if (!ret && get.size == info.size) {
|
||||
ret = compat_copy_entries_to_user(private->size,
|
||||
t, uptr->entrytable);
|
||||
t, uptr->entrytable);
|
||||
} else if (!ret) {
|
||||
duprintf("compat_get_entries: I've got %u not %u!\n",
|
||||
private->size,
|
||||
|
|
|
|||
Loading…
Reference in New Issue