nf_conntrack_acct.c 1.1 KB

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  1. // SPDX-License-Identifier: GPL-2.0-only
  2. /* Accouting handling for netfilter. */
  3. /*
  4. * (C) 2008 Krzysztof Piotr Oledzki <ole@ans.pl>
  5. */
  6. #define pr_fmt(fmt) KBUILD_MODNAME ": " fmt
  7. #include <linux/netfilter.h>
  8. #include <linux/slab.h>
  9. #include <linux/kernel.h>
  10. #include <linux/moduleparam.h>
  11. #include <linux/export.h>
  12. #include <net/netfilter/nf_conntrack.h>
  13. #include <net/netfilter/nf_conntrack_extend.h>
  14. #include <net/netfilter/nf_conntrack_acct.h>
  15. static bool nf_ct_acct __read_mostly;
  16. module_param_named(acct, nf_ct_acct, bool, 0644);
  17. MODULE_PARM_DESC(acct, "Enable connection tracking flow accounting.");
  18. static const struct nf_ct_ext_type acct_extend = {
  19. .len = sizeof(struct nf_conn_acct),
  20. .align = __alignof__(struct nf_conn_acct),
  21. .id = NF_CT_EXT_ACCT,
  22. };
  23. void nf_conntrack_acct_pernet_init(struct net *net)
  24. {
  25. net->ct.sysctl_acct = nf_ct_acct;
  26. }
  27. int nf_conntrack_acct_init(void)
  28. {
  29. int ret = nf_ct_extend_register(&acct_extend);
  30. if (ret < 0)
  31. pr_err("Unable to register extension\n");
  32. return ret;
  33. }
  34. void nf_conntrack_acct_fini(void)
  35. {
  36. nf_ct_extend_unregister(&acct_extend);
  37. }