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// SPDX-License-Identifier: GPL-2.0-only
#include <linux/kernel.h>
#include <linux/proc_fs.h>
#include <net/netfilter/nf_flow_table.h>
static void *nf_flow_table_cpu_seq_start(struct seq_file *seq, loff_t *pos)
{
struct net *net = seq_file_net(seq);
int cpu;
if (*pos == 0)
return SEQ_START_TOKEN;
for (cpu = *pos - 1; cpu < nr_cpu_ids; ++cpu) {
if (!cpu_possible(cpu))
continue;
*pos = cpu + 1;
return per_cpu_ptr(net->ft.stat, cpu);
}
return NULL;
}
static void *nf_flow_table_cpu_seq_next(struct seq_file *seq, void *v, loff_t *pos)
{
struct net *net = seq_file_net(seq);
int cpu;
for (cpu = *pos; cpu < nr_cpu_ids; ++cpu) {
if (!cpu_possible(cpu))
continue;
*pos = cpu + 1;
return per_cpu_ptr(net->ft.stat, cpu);
}
(*pos)++;
return NULL;
}
static void nf_flow_table_cpu_seq_stop(struct seq_file *seq, void *v)
{
}
static int nf_flow_table_cpu_seq_show(struct seq_file *seq, void *v)
{
const struct nf_flow_table_stat *st = v;
if (v == SEQ_START_TOKEN) {
seq_puts(seq, "wq_add wq_del wq_stats\n");
return 0;
}
seq_printf(seq, "%8d %8d %8d\n",
st->count_wq_add,
st->count_wq_del,
st->count_wq_stats
);
return 0;
}
static const struct seq_operations nf_flow_table_cpu_seq_ops = {
.start = nf_flow_table_cpu_seq_start,
.next = nf_flow_table_cpu_seq_next,
.stop = nf_flow_table_cpu_seq_stop,
.show = nf_flow_table_cpu_seq_show,
};
int nf_flow_table_init_proc(struct net *net)
{
struct proc_dir_entry *pde;
pde = proc_create_net("nf_flowtable", 0444, net->proc_net_stat,
&nf_flow_table_cpu_seq_ops,
sizeof(struct seq_net_private));
return pde ? 0 : -ENOMEM;
}
void nf_flow_table_fini_proc(struct net *net)
{
remove_proc_entry("nf_flowtable", net->proc_net_stat);
}
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