ct_usermgmt.h

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