crypto/openssh/authfd.h

   1 /* $OpenBSD: authfd.h,v 1.41 2017/06/28 01:09:22 djm Exp $ */
   2
   3 /*
   4  * Author: Tatu Ylonen <ylo@cs.hut.fi>
   5  * Copyright (c) 1995 Tatu Ylonen <ylo@cs.hut.fi>, Espoo, Finland
   6  *                    All rights reserved
   7  * Functions to interface with the SSH_AUTHENTICATION_FD socket.
   8  *
   9  * As far as I am concerned, the code I have written for this software
  10  * can be used freely for any purpose.  Any derived versions of this
  11  * software must be clearly marked as such, and if the derived work is
  12  * incompatible with the protocol description in the RFC file, it must be
  13  * called by a name other than "ssh" or "Secure Shell".
  14  */
  15
  16 #ifndef AUTHFD_H
  17 #define AUTHFD_H
  18
  19 /* List of identities returned by ssh_fetch_identitylist() */
  20 struct ssh_identitylist {
  21         size_t nkeys;
  22         struct sshkey **keys;
  23         char **comments;
  24 };
  25
  26 int     ssh_get_authentication_socket(int *fdp);
  27 void    ssh_close_authentication_socket(int sock);
  28
  29 int     ssh_lock_agent(int sock, int lock, const char *password);
  30 int     ssh_fetch_identitylist(int sock, struct ssh_identitylist **idlp);
  31 void    ssh_free_identitylist(struct ssh_identitylist *idl);
  32 int     ssh_add_identity_constrained(int sock, struct sshkey *key,
  33             const char *comment, u_int life, u_int confirm);
  34 int     ssh_remove_identity(int sock, struct sshkey *key);
  35 int     ssh_update_card(int sock, int add, const char *reader_id,
  36             const char *pin, u_int life, u_int confirm);
  37 int     ssh_remove_all_identities(int sock, int version);
  38
  39 int     ssh_decrypt_challenge(int sock, struct sshkey* key, BIGNUM *challenge,
  40             u_char session_id[16], u_char response[16]);
  41 int     ssh_agent_sign(int sock, const struct sshkey *key,
  42             u_char **sigp, size_t *lenp,
  43             const u_char *data, size_t datalen, const char *alg, u_int compat);
  44
  45 /* Messages for the authentication agent connection. */
  46 #define SSH_AGENTC_REQUEST_RSA_IDENTITIES       1
  47 #define SSH_AGENT_RSA_IDENTITIES_ANSWER         2
  48 #define SSH_AGENTC_RSA_CHALLENGE                3
  49 #define SSH_AGENT_RSA_RESPONSE                  4
  50 #define SSH_AGENT_FAILURE                       5
  51 #define SSH_AGENT_SUCCESS                       6
  52 #define SSH_AGENTC_ADD_RSA_IDENTITY             7
  53 #define SSH_AGENTC_REMOVE_RSA_IDENTITY          8
  54 #define SSH_AGENTC_REMOVE_ALL_RSA_IDENTITIES    9
  55
  56 /* private OpenSSH extensions for SSH2 */
  57 #define SSH2_AGENTC_REQUEST_IDENTITIES          11
  58 #define SSH2_AGENT_IDENTITIES_ANSWER            12
  59 #define SSH2_AGENTC_SIGN_REQUEST                13
  60 #define SSH2_AGENT_SIGN_RESPONSE                14
  61 #define SSH2_AGENTC_ADD_IDENTITY                17
  62 #define SSH2_AGENTC_REMOVE_IDENTITY             18
  63 #define SSH2_AGENTC_REMOVE_ALL_IDENTITIES       19
  64
  65 /* smartcard */
  66 #define SSH_AGENTC_ADD_SMARTCARD_KEY            20
  67 #define SSH_AGENTC_REMOVE_SMARTCARD_KEY         21
  68
  69 /* lock/unlock the agent */
  70 #define SSH_AGENTC_LOCK                         22
  71 #define SSH_AGENTC_UNLOCK                       23
  72
  73 /* add key with constraints */
  74 #define SSH_AGENTC_ADD_RSA_ID_CONSTRAINED       24
  75 #define SSH2_AGENTC_ADD_ID_CONSTRAINED          25
  76 #define SSH_AGENTC_ADD_SMARTCARD_KEY_CONSTRAINED 26
  77
  78 #define SSH_AGENT_CONSTRAIN_LIFETIME            1
  79 #define SSH_AGENT_CONSTRAIN_CONFIRM             2
  80
  81 /* extended failure messages */
  82 #define SSH2_AGENT_FAILURE                      30
  83
  84 /* additional error code for ssh.com's ssh-agent2 */
  85 #define SSH_COM_AGENT2_FAILURE                  102
  86
  87 #define SSH_AGENT_OLD_SIGNATURE                 0x01
  88 #define SSH_AGENT_RSA_SHA2_256                  0x02
  89 #define SSH_AGENT_RSA_SHA2_512                  0x04
  90
  91 #endif                          /* AUTHFD_H */