1 /* $OpenBSD: authfd.h,v 1.31 2002/09/11 18:27:25 stevesk Exp $ */ 2 3 #ifndef _AUTHFD_H 4 #define _AUTHFD_H 5 6 #pragma ident "%Z%%M% %I% %E% SMI" 7 8 #ifdef __cplusplus 9 extern "C" { 10 #endif 11 12 13 /* 14 * Author: Tatu Ylonen <ylo@cs.hut.fi> 15 * Copyright (c) 1995 Tatu Ylonen <ylo@cs.hut.fi>, Espoo, Finland 16 * All rights reserved 17 * Functions to interface with the SSH_AUTHENTICATION_FD socket. 18 * 19 * As far as I am concerned, the code I have written for this software 20 * can be used freely for any purpose. Any derived versions of this 21 * software must be clearly marked as such, and if the derived work is 22 * incompatible with the protocol description in the RFC file, it must be 23 * called by a name other than "ssh" or "Secure Shell". 24 */ 25 26 #include "buffer.h" 27 28 /* Messages for the authentication agent connection. */ 29 #define SSH_AGENTC_REQUEST_RSA_IDENTITIES 1 30 #define SSH_AGENT_RSA_IDENTITIES_ANSWER 2 31 #define SSH_AGENTC_RSA_CHALLENGE 3 32 #define SSH_AGENT_RSA_RESPONSE 4 33 #define SSH_AGENT_FAILURE 5 34 #define SSH_AGENT_SUCCESS 6 35 #define SSH_AGENTC_ADD_RSA_IDENTITY 7 36 #define SSH_AGENTC_REMOVE_RSA_IDENTITY 8 37 #define SSH_AGENTC_REMOVE_ALL_RSA_IDENTITIES 9 38 39 /* private OpenSSH extensions for SSH2 */ 40 #define SSH2_AGENTC_REQUEST_IDENTITIES 11 41 #define SSH2_AGENT_IDENTITIES_ANSWER 12 42 #define SSH2_AGENTC_SIGN_REQUEST 13 43 #define SSH2_AGENT_SIGN_RESPONSE 14 44 #define SSH2_AGENTC_ADD_IDENTITY 17 45 #define SSH2_AGENTC_REMOVE_IDENTITY 18 46 #define SSH2_AGENTC_REMOVE_ALL_IDENTITIES 19 47 48 /* smartcard */ 49 #define SSH_AGENTC_ADD_SMARTCARD_KEY 20 50 #define SSH_AGENTC_REMOVE_SMARTCARD_KEY 21 51 52 /* lock/unlock the agent */ 53 #define SSH_AGENTC_LOCK 22 54 #define SSH_AGENTC_UNLOCK 23 55 56 /* add key with constraints */ 57 #define SSH_AGENTC_ADD_RSA_ID_CONSTRAINED 24 58 #define SSH2_AGENTC_ADD_ID_CONSTRAINED 25 59 60 #define SSH_AGENT_CONSTRAIN_LIFETIME 1 61 62 /* extended failure messages */ 63 #define SSH2_AGENT_FAILURE 30 64 65 /* additional error code for ssh.com's ssh-agent2 */ 66 #define SSH_COM_AGENT2_FAILURE 102 67 68 #define SSH_AGENT_OLD_SIGNATURE 0x01 69 70 typedef struct { 71 int fd; 72 Buffer identities; 73 int howmany; 74 } AuthenticationConnection; 75 76 int ssh_agent_present(void); 77 int ssh_get_authentication_socket(void); 78 void ssh_close_authentication_socket(int); 79 80 AuthenticationConnection *ssh_get_authentication_connection(void); 81 void ssh_close_authentication_connection(AuthenticationConnection *); 82 int ssh_get_num_identities(AuthenticationConnection *, int); 83 Key *ssh_get_first_identity(AuthenticationConnection *, char **, int); 84 Key *ssh_get_next_identity(AuthenticationConnection *, char **, int); 85 int ssh_add_identity(AuthenticationConnection *, Key *, const char *); 86 int ssh_add_identity_constrained(AuthenticationConnection *, Key *, const char *, u_int); 87 int ssh_remove_identity(AuthenticationConnection *, Key *); 88 int ssh_remove_all_identities(AuthenticationConnection *, int); 89 int ssh_lock_agent(AuthenticationConnection *, int, const char *); 90 int ssh_update_card(AuthenticationConnection *, int, const char *, const char *); 91 92 int 93 ssh_decrypt_challenge(AuthenticationConnection *, Key *, BIGNUM *, u_char[16], 94 u_int, u_char[16]); 95 96 int 97 ssh_agent_sign(AuthenticationConnection *, Key *, u_char **, u_int *, u_char *, 98 u_int); 99 100 #ifdef __cplusplus 101 } 102 #endif 103 104 #endif /* _AUTHFD_H */ 105