netfilter/xt_hashlimit: switch to proc_create_{seq,single}_data
And use proc private data directly instead of doing a detour through seq->private. Signed-off-by: Christoph Hellwig <hch@lst.de>
This commit is contained in:
Christoph Hellwig
parent
71a5053a41
commit
fd24de8904
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@ -57,9 +57,9 @@ static inline struct hashlimit_net *hashlimit_pernet(struct net *net)
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}
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/* need to declare this at the top */
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static const struct file_operations dl_file_ops_v2;
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static const struct file_operations dl_file_ops_v1;
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static const struct file_operations dl_file_ops;
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static const struct seq_operations dl_seq_ops_v2;
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static const struct seq_operations dl_seq_ops_v1;
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static const struct seq_operations dl_seq_ops;
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/* hash table crap */
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struct dsthash_dst {
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@ -272,7 +272,7 @@ static int htable_create(struct net *net, struct hashlimit_cfg3 *cfg,
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{
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struct hashlimit_net *hashlimit_net = hashlimit_pernet(net);
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struct xt_hashlimit_htable *hinfo;
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const struct file_operations *fops;
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const struct seq_operations *ops;
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unsigned int size, i;
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int ret;
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@ -321,19 +321,19 @@ static int htable_create(struct net *net, struct hashlimit_cfg3 *cfg,
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switch (revision) {
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case 1:
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fops = &dl_file_ops_v1;
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ops = &dl_seq_ops_v1;
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break;
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case 2:
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fops = &dl_file_ops_v2;
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ops = &dl_seq_ops_v2;
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break;
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default:
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fops = &dl_file_ops;
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ops = &dl_seq_ops;
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}
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hinfo->pde = proc_create_data(name, 0,
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hinfo->pde = proc_create_seq_data(name, 0,
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(family == NFPROTO_IPV4) ?
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hashlimit_net->ipt_hashlimit : hashlimit_net->ip6t_hashlimit,
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fops, hinfo);
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ops, hinfo);
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if (hinfo->pde == NULL) {
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kfree(hinfo->name);
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vfree(hinfo);
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@ -1057,7 +1057,7 @@ static struct xt_match hashlimit_mt_reg[] __read_mostly = {
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static void *dl_seq_start(struct seq_file *s, loff_t *pos)
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__acquires(htable->lock)
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{
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struct xt_hashlimit_htable *htable = s->private;
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struct xt_hashlimit_htable *htable = PDE_DATA(file_inode(s->private));
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unsigned int *bucket;
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spin_lock_bh(&htable->lock);
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@ -1074,7 +1074,7 @@ static void *dl_seq_start(struct seq_file *s, loff_t *pos)
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static void *dl_seq_next(struct seq_file *s, void *v, loff_t *pos)
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{
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struct xt_hashlimit_htable *htable = s->private;
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struct xt_hashlimit_htable *htable = PDE_DATA(file_inode(s->private));
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unsigned int *bucket = v;
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*pos = ++(*bucket);
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@ -1088,7 +1088,7 @@ static void *dl_seq_next(struct seq_file *s, void *v, loff_t *pos)
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static void dl_seq_stop(struct seq_file *s, void *v)
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__releases(htable->lock)
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{
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struct xt_hashlimit_htable *htable = s->private;
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struct xt_hashlimit_htable *htable = PDE_DATA(file_inode(s->private));
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unsigned int *bucket = v;
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if (!IS_ERR(bucket))
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@ -1130,7 +1130,7 @@ static void dl_seq_print(struct dsthash_ent *ent, u_int8_t family,
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static int dl_seq_real_show_v2(struct dsthash_ent *ent, u_int8_t family,
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struct seq_file *s)
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{
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const struct xt_hashlimit_htable *ht = s->private;
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struct xt_hashlimit_htable *ht = PDE_DATA(file_inode(s->private));
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spin_lock(&ent->lock);
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/* recalculate to show accurate numbers */
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@ -1145,7 +1145,7 @@ static int dl_seq_real_show_v2(struct dsthash_ent *ent, u_int8_t family,
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static int dl_seq_real_show_v1(struct dsthash_ent *ent, u_int8_t family,
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struct seq_file *s)
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{
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const struct xt_hashlimit_htable *ht = s->private;
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struct xt_hashlimit_htable *ht = PDE_DATA(file_inode(s->private));
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spin_lock(&ent->lock);
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/* recalculate to show accurate numbers */
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@ -1160,7 +1160,7 @@ static int dl_seq_real_show_v1(struct dsthash_ent *ent, u_int8_t family,
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static int dl_seq_real_show(struct dsthash_ent *ent, u_int8_t family,
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struct seq_file *s)
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{
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const struct xt_hashlimit_htable *ht = s->private;
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struct xt_hashlimit_htable *ht = PDE_DATA(file_inode(s->private));
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spin_lock(&ent->lock);
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/* recalculate to show accurate numbers */
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@ -1174,7 +1174,7 @@ static int dl_seq_real_show(struct dsthash_ent *ent, u_int8_t family,
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static int dl_seq_show_v2(struct seq_file *s, void *v)
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{
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struct xt_hashlimit_htable *htable = s->private;
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struct xt_hashlimit_htable *htable = PDE_DATA(file_inode(s->private));
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unsigned int *bucket = (unsigned int *)v;
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struct dsthash_ent *ent;
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@ -1188,7 +1188,7 @@ static int dl_seq_show_v2(struct seq_file *s, void *v)
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static int dl_seq_show_v1(struct seq_file *s, void *v)
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{
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struct xt_hashlimit_htable *htable = s->private;
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struct xt_hashlimit_htable *htable = PDE_DATA(file_inode(s->private));
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unsigned int *bucket = v;
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struct dsthash_ent *ent;
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@ -1202,7 +1202,7 @@ static int dl_seq_show_v1(struct seq_file *s, void *v)
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static int dl_seq_show(struct seq_file *s, void *v)
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{
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struct xt_hashlimit_htable *htable = s->private;
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struct xt_hashlimit_htable *htable = PDE_DATA(file_inode(s->private));
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unsigned int *bucket = v;
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struct dsthash_ent *ent;
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@ -1235,62 +1235,6 @@ static const struct seq_operations dl_seq_ops = {
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.show = dl_seq_show
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};
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static int dl_proc_open_v2(struct inode *inode, struct file *file)
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{
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int ret = seq_open(file, &dl_seq_ops_v2);
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if (!ret) {
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struct seq_file *sf = file->private_data;
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sf->private = PDE_DATA(inode);
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}
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return ret;
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}
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static int dl_proc_open_v1(struct inode *inode, struct file *file)
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{
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int ret = seq_open(file, &dl_seq_ops_v1);
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if (!ret) {
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struct seq_file *sf = file->private_data;
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sf->private = PDE_DATA(inode);
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}
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return ret;
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}
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static int dl_proc_open(struct inode *inode, struct file *file)
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{
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int ret = seq_open(file, &dl_seq_ops);
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if (!ret) {
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struct seq_file *sf = file->private_data;
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sf->private = PDE_DATA(inode);
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}
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return ret;
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}
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static const struct file_operations dl_file_ops_v2 = {
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.open = dl_proc_open_v2,
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.read = seq_read,
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.llseek = seq_lseek,
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.release = seq_release
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};
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static const struct file_operations dl_file_ops_v1 = {
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.open = dl_proc_open_v1,
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.read = seq_read,
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.llseek = seq_lseek,
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.release = seq_release
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};
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static const struct file_operations dl_file_ops = {
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.open = dl_proc_open,
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.read = seq_read,
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.llseek = seq_lseek,
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.release = seq_release
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};
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static int __net_init hashlimit_proc_net_init(struct net *net)
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{
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struct hashlimit_net *hashlimit_net = hashlimit_pernet(net);
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