1/* $OpenBSD: authfd.h,v 1.37 2009/08/27 17:44:52 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/* Messages for the authentication agent connection. */ 20#define SSH_AGENTC_REQUEST_RSA_IDENTITIES 1 21#define SSH_AGENT_RSA_IDENTITIES_ANSWER 2 22#define SSH_AGENTC_RSA_CHALLENGE 3 23#define SSH_AGENT_RSA_RESPONSE 4 24#define SSH_AGENT_FAILURE 5 25#define SSH_AGENT_SUCCESS 6 26#define SSH_AGENTC_ADD_RSA_IDENTITY 7 27#define SSH_AGENTC_REMOVE_RSA_IDENTITY 8 28#define SSH_AGENTC_REMOVE_ALL_RSA_IDENTITIES 9 29 30/* private OpenSSH extensions for SSH2 */ 31#define SSH2_AGENTC_REQUEST_IDENTITIES 11 32#define SSH2_AGENT_IDENTITIES_ANSWER 12 33#define SSH2_AGENTC_SIGN_REQUEST 13 34#define SSH2_AGENT_SIGN_RESPONSE 14 35#define SSH2_AGENTC_ADD_IDENTITY 17 36#define SSH2_AGENTC_REMOVE_IDENTITY 18 37#define SSH2_AGENTC_REMOVE_ALL_IDENTITIES 19 38 39/* smartcard */ 40#define SSH_AGENTC_ADD_SMARTCARD_KEY 20 41#define SSH_AGENTC_REMOVE_SMARTCARD_KEY 21 42 43/* lock/unlock the agent */ 44#define SSH_AGENTC_LOCK 22 45#define SSH_AGENTC_UNLOCK 23 46 47/* add key with constraints */ 48#define SSH_AGENTC_ADD_RSA_ID_CONSTRAINED 24 49#define SSH2_AGENTC_ADD_ID_CONSTRAINED 25 50#define SSH_AGENTC_ADD_SMARTCARD_KEY_CONSTRAINED 26 51 52/* keychain */ 53#define SSH_AGENTC_ADD_FROM_KEYCHAIN 27 54 55#define SSH_AGENT_CONSTRAIN_LIFETIME 1 56#define SSH_AGENT_CONSTRAIN_CONFIRM 2 57 58/* extended failure messages */ 59#define SSH2_AGENT_FAILURE 30 60 61/* additional error code for ssh.com's ssh-agent2 */ 62#define SSH_COM_AGENT2_FAILURE 102 63 64#define SSH_AGENT_OLD_SIGNATURE 0x01 65 66typedef struct { 67 int fd; 68 Buffer identities; 69 int howmany; 70} AuthenticationConnection; 71 72int ssh_agent_present(void); 73int ssh_get_authentication_socket(void); 74void ssh_close_authentication_socket(int); 75 76AuthenticationConnection *ssh_get_authentication_connection(void); 77void ssh_close_authentication_connection(AuthenticationConnection *); 78int ssh_get_num_identities(AuthenticationConnection *, int); 79Key *ssh_get_first_identity(AuthenticationConnection *, char **, int); 80Key *ssh_get_next_identity(AuthenticationConnection *, char **, int); 81int ssh_add_identity_constrained(AuthenticationConnection *, Key *, 82 const char *, u_int, u_int); 83int ssh_remove_identity(AuthenticationConnection *, Key *); 84int ssh_remove_all_identities(AuthenticationConnection *, int); 85int ssh_lock_agent(AuthenticationConnection *, int, const char *); 86int ssh_update_card(AuthenticationConnection *, int, const char *, 87 const char *, u_int, u_int); 88 89int 90ssh_decrypt_challenge(AuthenticationConnection *, Key *, BIGNUM *, u_char[16], 91 u_int, u_char[16]); 92 93int 94ssh_agent_sign(AuthenticationConnection *, Key *, u_char **, u_int *, u_char *, 95 u_int); 96 97int 98ssh_add_from_keychain(AuthenticationConnection *auth); 99 100#endif /* AUTHFD_H */ 101