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