/include/linux/utsname.h

https://github.com/airy09/android_kernel_sony_apq8064 · C Header · 113 lines · 91 code · 22 blank · 0 comment · 1 complexity · 8dd5e67c92444dd0db58fb7131136dc6 MD5 · raw file 

    

  1. #ifndef _LINUX_UTSNAME_H
    2. 

  2. #define _LINUX_UTSNAME_H
    3. 

  3. 

  4. #define __OLD_UTS_LEN 8
    5. 

  5. 

  6. struct oldold_utsname {
    7. 

  7. 	char sysname[9];
    8. 

  8. 	char nodename[9];
    9. 

  9. 	char release[9];
    10. 

  10. 	char version[9];
    11. 

  11. 	char machine[9];
    12. 

  12. };
    13. 

  13. 

  14. #define __NEW_UTS_LEN 64
    15. 

  15. 

  16. struct old_utsname {
    17. 

  17. 	char sysname[65];
    18. 

  18. 	char nodename[65];
    19. 

  19. 	char release[65];
    20. 

  20. 	char version[65];
    21. 

  21. 	char machine[65];
    22. 

  22. };
    23. 

  23. 

  24. struct new_utsname {
    25. 

  25. 	char sysname[__NEW_UTS_LEN + 1];
    26. 

  26. 	char nodename[__NEW_UTS_LEN + 1];
    27. 

  27. 	char release[__NEW_UTS_LEN + 1];
    28. 

  28. 	char version[__NEW_UTS_LEN + 1];
    29. 

  29. 	char machine[__NEW_UTS_LEN + 1];
    30. 

  30. 	char domainname[__NEW_UTS_LEN + 1];
    31. 

  31. };
    32. 

  32. 

  33. #ifdef __KERNEL__
    34. 

  34. 

  35. #include <linux/sched.h>
    36. 

  36. #include <linux/kref.h>
    37. 

  37. #include <linux/nsproxy.h>
    38. 

  38. #include <linux/err.h>
    39. 

  39. 

  40. enum uts_proc {
    41. 

  41. 	UTS_PROC_OSTYPE,
    42. 

  42. 	UTS_PROC_OSRELEASE,
    43. 

  43. 	UTS_PROC_VERSION,
    44. 

  44. 	UTS_PROC_HOSTNAME,
    45. 

  45. 	UTS_PROC_DOMAINNAME,
    46. 

  46. };
    47. 

  47. 

  48. struct user_namespace;
    49. 

  49. extern struct user_namespace init_user_ns;
    50. 

  50. 

  51. struct uts_namespace {
    52. 

  52. 	struct kref kref;
    53. 

  53. 	struct new_utsname name;
    54. 

  54. 	struct user_namespace *user_ns;
    55. 

  55. };
    56. 

  56. extern struct uts_namespace init_uts_ns;
    57. 

  57. 

  58. #ifdef CONFIG_UTS_NS
    59. 

  59. static inline void get_uts_ns(struct uts_namespace *ns)
    60. 

  60. {
    61. 

  61. 	kref_get(&ns->kref);
    62. 

  62. }
    63. 

  63. 

  64. extern struct uts_namespace *copy_utsname(unsigned long flags,
    65. 

  65. 					  struct task_struct *tsk);
    66. 

  66. extern void free_uts_ns(struct kref *kref);
    67. 

  67. 

  68. static inline void put_uts_ns(struct uts_namespace *ns)
    69. 

  69. {
    70. 

  70. 	kref_put(&ns->kref, free_uts_ns);
    71. 

  71. }
    72. 

  72. #else
    73. 

  73. static inline void get_uts_ns(struct uts_namespace *ns)
    74. 

  74. {
    75. 

  75. }
    76. 

  76. 

  77. static inline void put_uts_ns(struct uts_namespace *ns)
    78. 

  78. {
    79. 

  79. }
    80. 

  80. 

  81. static inline struct uts_namespace *copy_utsname(unsigned long flags,
    82. 

  82. 						 struct task_struct *tsk)
    83. 

  83. {
    84. 

  84. 	if (flags & CLONE_NEWUTS)
    85. 

  85. 		return ERR_PTR(-EINVAL);
    86. 

  86. 

  87. 	return tsk->nsproxy->uts_ns;
    88. 

  88. }
    89. 

  89. #endif
    90. 

  90. 

  91. #ifdef CONFIG_PROC_SYSCTL
    92. 

  92. extern void uts_proc_notify(enum uts_proc proc);
    93. 

  93. #else
    94. 

  94. static inline void uts_proc_notify(enum uts_proc proc)
    95. 

  95. {
    96. 

  96. }
    97. 

  97. #endif
    98. 

  98. 

  99. static inline struct new_utsname *utsname(void)
    100. 

  100. {
    101. 

  101. 	return &current->nsproxy->uts_ns->name;
    102. 

  102. }
    103. 

  103. 

  104. static inline struct new_utsname *init_utsname(void)
    105. 

  105. {
    106. 

  106. 	return &init_uts_ns.name;
    107. 

  107. }
    108. 

  108. 

  109. extern struct rw_semaphore uts_sem;
    110. 

  110. 

  111. #endif /* __KERNEL__ */
    112. 

  112. 

  113. #endif /* _LINUX_UTSNAME_H */
    114.