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