src/ct_usermgmt.h

   1 /*
   2  * netsniff-ng - the packet sniffing beast
   3  * By Daniel Borkmann <daniel@netsniff-ng.org>
   4  * Copyright 2011 Daniel Borkmann.
   5  * Subject to the GPL, version 2.
   6  */
   7
   8 #ifndef CT_USERMGMT_H
   9 #define CT_USERMGMT_H
  10
  11 #include <stdint.h>
  12
  13 #include "curve.h"
  14 #include "crypto_hash_sha512.h"
  15
  16 enum is_user_enum {
  17         USERNAMES_OK = 0,       /* Usernames match, valid 'token' */
  18         USERNAMES_NE,           /* Usernames do not match */
  19         USERNAMES_TS,           /* Usernames match, but 'token' invalid,
  20                                    Drop connection here */
  21         USERNAMES_ERR,
  22 };
  23
  24 struct username_struct {
  25         uint32_t salt;
  26         uint8_t hash[crypto_hash_sha512_BYTES];
  27 };
  28
  29 extern int username_msg(char *username, size_t len, char *dst, size_t dlen);
  30 extern enum is_user_enum username_msg_is_user(char *src, size_t slen,
  31                                               char *username, size_t len);
  32 extern void parse_userfile_and_generate_user_store_or_die(char *homedir);
  33 extern void dump_user_store(void);
  34 extern void destroy_user_store(void);
  35
  36 extern int get_user_by_socket(int sock, struct curve25519_proto **proto);
  37 extern int get_user_by_sockaddr(struct sockaddr_storage *sa, size_t sa_len,
  38                                 struct curve25519_proto **proto);
  39 extern int try_register_user_by_socket(struct curve25519_struct *c,
  40                                        char *src, size_t slen, int sock,
  41                                        int log);
  42 extern int try_register_user_by_sockaddr(struct curve25519_struct *c,
  43                                          char *src, size_t slen,
  44                                          struct sockaddr_storage *sa,
  45                                          size_t sa_len, int log);
  46 extern void remove_user_by_socket(int sock);
  47 extern void remove_user_by_sockaddr(struct sockaddr_storage *sa,
  48                                     size_t sa_len);
  49
  50 #endif /* CT_USERMGMT_H */