internal.h 1.4 KB

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  1. /*
  2. * Copyright (c) 2010 Wang Lei
  3. * Author(s): Wang Lei (wang840925@gmail.com). All Rights Reserved.
  4. *
  5. * Internal DNS Rsolver stuff
  6. *
  7. * This library is free software; you can redistribute it and/or modify
  8. * it under the terms of the GNU Lesser General Public License as published
  9. * by the Free Software Foundation; either version 2.1 of the License, or
  10. * (at your option) any later version.
  11. *
  12. * This library is distributed in the hope that it will be useful,
  13. * but WITHOUT ANY WARRANTY; without even the implied warranty of
  14. * MERCHANTABILITY or FITNESS FOR A PARTICULAR PURPOSE. See
  15. * the GNU Lesser General Public License for more details.
  16. *
  17. * You should have received a copy of the GNU Lesser General Public License
  18. * along with this library; if not, see <http://www.gnu.org/licenses/>.
  19. */
  20. #include <linux/compiler.h>
  21. #include <linux/kernel.h>
  22. #include <linux/sched.h>
  23. /*
  24. * Layout of key payload words.
  25. */
  26. enum {
  27. dns_key_data,
  28. dns_key_error,
  29. };
  30. /*
  31. * dns_key.c
  32. */
  33. extern const struct cred *dns_resolver_cache;
  34. /*
  35. * debug tracing
  36. */
  37. extern unsigned int dns_resolver_debug;
  38. #define kdebug(FMT, ...) \
  39. do { \
  40. if (unlikely(dns_resolver_debug)) \
  41. printk(KERN_DEBUG "[%-6.6s] "FMT"\n", \
  42. current->comm, ##__VA_ARGS__); \
  43. } while (0)
  44. #define kenter(FMT, ...) kdebug("==> %s("FMT")", __func__, ##__VA_ARGS__)
  45. #define kleave(FMT, ...) kdebug("<== %s()"FMT"", __func__, ##__VA_ARGS__)