/crypto/heimdal/appl/ftp/ftp/security.h

https://bitbucket.org/freebsd/freebsd-head/ · C Header · 141 lines · 90 code · 17 blank · 34 comment · 0 complexity · 97c8361235ae0cc83c99bb97c262bbbd MD5 · raw file

  1. /*
  2. * Copyright (c) 1998 - 2005 Kungliga Tekniska Hรถgskolan
  3. * (Royal Institute of Technology, Stockholm, Sweden).
  4. * All rights reserved.
  5. *
  6. * Redistribution and use in source and binary forms, with or without
  7. * modification, are permitted provided that the following conditions
  8. * are met:
  9. *
  10. * 1. Redistributions of source code must retain the above copyright
  11. * notice, this list of conditions and the following disclaimer.
  12. *
  13. * 2. Redistributions in binary form must reproduce the above copyright
  14. * notice, this list of conditions and the following disclaimer in the
  15. * documentation and/or other materials provided with the distribution.
  16. *
  17. * 3. Neither the name of the Institute nor the names of its contributors
  18. * may be used to endorse or promote products derived from this software
  19. * without specific prior written permission.
  20. *
  21. * THIS SOFTWARE IS PROVIDED BY THE INSTITUTE AND CONTRIBUTORS ``AS IS'' AND
  22. * ANY EXPRESS OR IMPLIED WARRANTIES, INCLUDING, BUT NOT LIMITED TO, THE
  23. * IMPLIED WARRANTIES OF MERCHANTABILITY AND FITNESS FOR A PARTICULAR PURPOSE
  24. * ARE DISCLAIMED. IN NO EVENT SHALL THE INSTITUTE OR CONTRIBUTORS BE LIABLE
  25. * FOR ANY DIRECT, INDIRECT, INCIDENTAL, SPECIAL, EXEMPLARY, OR CONSEQUENTIAL
  26. * DAMAGES (INCLUDING, BUT NOT LIMITED TO, PROCUREMENT OF SUBSTITUTE GOODS
  27. * OR SERVICES; LOSS OF USE, DATA, OR PROFITS; OR BUSINESS INTERRUPTION)
  28. * HOWEVER CAUSED AND ON ANY THEORY OF LIABILITY, WHETHER IN CONTRACT, STRICT
  29. * LIABILITY, OR TORT (INCLUDING NEGLIGENCE OR OTHERWISE) ARISING IN ANY WAY
  30. * OUT OF THE USE OF THIS SOFTWARE, EVEN IF ADVISED OF THE POSSIBILITY OF
  31. * SUCH DAMAGE.
  32. */
  33. /* $Id$ */
  34. #ifndef __security_h__
  35. #define __security_h__
  36. enum protection_level {
  37. prot_invalid = -1,
  38. prot_clear = 0,
  39. prot_safe = 1,
  40. prot_confidential = 2,
  41. prot_private = 3
  42. };
  43. struct sec_client_mech {
  44. char *name;
  45. size_t size;
  46. int (*init)(void *);
  47. int (*auth)(void *, char*);
  48. void (*end)(void *);
  49. int (*check_prot)(void *, int);
  50. int (*overhead)(void *, int, int);
  51. int (*encode)(void *, void*, int, int, void**);
  52. int (*decode)(void *, void*, int, int);
  53. };
  54. struct sec_server_mech {
  55. char *name;
  56. size_t size;
  57. int (*init)(void *);
  58. void (*end)(void *);
  59. int (*check_prot)(void *, int);
  60. int (*overhead)(void *, int, int);
  61. int (*encode)(void *, void*, int, int, void**);
  62. int (*decode)(void *, void*, int, int);
  63. int (*auth)(void *);
  64. int (*adat)(void *, void*, size_t);
  65. size_t (*pbsz)(void *, size_t);
  66. int (*ccc)(void*);
  67. int (*userok)(void*, char*);
  68. int (*session)(void*, char*);
  69. };
  70. #define AUTH_OK 0
  71. #define AUTH_CONTINUE 1
  72. #define AUTH_ERROR 2
  73. extern int ftp_do_gss_bindings;
  74. extern int ftp_do_gss_delegate;
  75. #ifdef FTP_SERVER
  76. extern struct sec_server_mech krb4_server_mech, gss_server_mech;
  77. #else
  78. extern struct sec_client_mech krb4_client_mech, gss_client_mech;
  79. #endif
  80. extern int sec_complete;
  81. #ifdef FTP_SERVER
  82. extern char *ftp_command;
  83. void new_ftp_command(char*);
  84. void delete_ftp_command(void);
  85. #endif
  86. /* ---- */
  87. int sec_fflush (FILE *);
  88. int sec_fprintf (FILE *, const char *, ...)
  89. __attribute__ ((format (printf, 2,3)));
  90. int sec_getc (FILE *);
  91. int sec_putc (int, FILE *);
  92. int sec_read (int, void *, int);
  93. int sec_read_msg (char *, int);
  94. int sec_vfprintf (FILE *, const char *, va_list)
  95. __attribute__ ((format (printf, 2,0)));
  96. int sec_fprintf2(FILE *f, const char *fmt, ...)
  97. __attribute__ ((format (printf, 2,3)));
  98. int sec_vfprintf2(FILE *, const char *, va_list)
  99. __attribute__ ((format (printf, 2,0)));
  100. int sec_write (int, char *, int);
  101. #ifdef FTP_SERVER
  102. void adat (char *);
  103. void auth (char *);
  104. void ccc (void);
  105. void mec (char *, enum protection_level);
  106. void pbsz (int);
  107. void prot (char *);
  108. void delete_ftp_command (void);
  109. void new_ftp_command (char *);
  110. int sec_userok (char *);
  111. int sec_session(char *);
  112. int secure_command (void);
  113. enum protection_level get_command_prot(void);
  114. #else
  115. void sec_end (void);
  116. int sec_login (char *);
  117. void sec_prot (int, char **);
  118. void sec_prot_command (int, char **);
  119. int sec_request_prot (char *);
  120. void sec_set_protection_level (void);
  121. void sec_status (void);
  122. enum protection_level set_command_prot(enum protection_level);
  123. #endif
  124. #endif /* __security_h__ */