aboutsummaryrefslogtreecommitdiffstats
path: root/net/netfilter/nf_flow_table_procfs.c
diff options
context:
space:
mode:
Diffstat (limited to 'net/netfilter/nf_flow_table_procfs.c')
-rw-r--r--net/netfilter/nf_flow_table_procfs.c80
1 files changed, 80 insertions, 0 deletions
diff --git a/net/netfilter/nf_flow_table_procfs.c b/net/netfilter/nf_flow_table_procfs.c
new file mode 100644
index 000000000000..159b033a43e6
--- /dev/null
+++ b/net/netfilter/nf_flow_table_procfs.c
@@ -0,0 +1,80 @@
+// 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);
+}