1 /* $OpenBSD: authfd.h,v 1.32 2003/01/23 13:50:27 markus 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 #include "buffer.h" 20 21 /* Messages for the authentication agent connection. */ 22 #define SSH_AGENTC_REQUEST_RSA_IDENTITIES 1 23 #define SSH_AGENT_RSA_IDENTITIES_ANSWER 2 24 #define SSH_AGENTC_RSA_CHALLENGE 3 25 #define SSH_AGENT_RSA_RESPONSE 4 26 #define SSH_AGENT_FAILURE 5 27 #define SSH_AGENT_SUCCESS 6 28 #define SSH_AGENTC_ADD_RSA_IDENTITY 7 29 #define SSH_AGENTC_REMOVE_RSA_IDENTITY 8 30 #define SSH_AGENTC_REMOVE_ALL_RSA_IDENTITIES 9 31 32 /* private OpenSSH extensions for SSH2 */ 33 #define SSH2_AGENTC_REQUEST_IDENTITIES 11 34 #define SSH2_AGENT_IDENTITIES_ANSWER 12 35 #define SSH2_AGENTC_SIGN_REQUEST 13 36 #define SSH2_AGENT_SIGN_RESPONSE 14 37 #define SSH2_AGENTC_ADD_IDENTITY 17 38 #define SSH2_AGENTC_REMOVE_IDENTITY 18 39 #define SSH2_AGENTC_REMOVE_ALL_IDENTITIES 19 40 41 /* smartcard */ 42 #define SSH_AGENTC_ADD_SMARTCARD_KEY 20 43 #define SSH_AGENTC_REMOVE_SMARTCARD_KEY 21 44 45 /* lock/unlock the agent */ 46 #define SSH_AGENTC_LOCK 22 47 #define SSH_AGENTC_UNLOCK 23 48 49 /* add key with constraints */ 50 #define SSH_AGENTC_ADD_RSA_ID_CONSTRAINED 24 51 #define SSH2_AGENTC_ADD_ID_CONSTRAINED 25 52 53 #define SSH_AGENT_CONSTRAIN_LIFETIME 1 54 #define SSH_AGENT_CONSTRAIN_CONFIRM 2 55 56 /* extended failure messages */ 57 #define SSH2_AGENT_FAILURE 30 58 59 /* additional error code for ssh.com's ssh-agent2 */ 60 #define SSH_COM_AGENT2_FAILURE 102 61 62 #define SSH_AGENT_OLD_SIGNATURE 0x01 63 64 typedef struct { 65 int fd; 66 Buffer identities; 67 int howmany; 68 } AuthenticationConnection; 69 70 int ssh_agent_present(void); 71 int ssh_get_authentication_socket(void); 72 void ssh_close_authentication_socket(int); 73 74 AuthenticationConnection *ssh_get_authentication_connection(void); 75 void ssh_close_authentication_connection(AuthenticationConnection *); 76 int ssh_get_num_identities(AuthenticationConnection *, int); 77 Key *ssh_get_first_identity(AuthenticationConnection *, char **, int); 78 Key *ssh_get_next_identity(AuthenticationConnection *, char **, int); 79 int ssh_add_identity(AuthenticationConnection *, Key *, const char *); 80 int ssh_add_identity_constrained(AuthenticationConnection *, Key *, 81 const char *, u_int, u_int); 82 int ssh_remove_identity(AuthenticationConnection *, Key *); 83 int ssh_remove_all_identities(AuthenticationConnection *, int); 84 int ssh_lock_agent(AuthenticationConnection *, int, const char *); 85 int ssh_update_card(AuthenticationConnection *, int, const char *, const char *); 86 87 int 88 ssh_decrypt_challenge(AuthenticationConnection *, Key *, BIGNUM *, u_char[16], 89 u_int, u_char[16]); 90 91 int 92 ssh_agent_sign(AuthenticationConnection *, Key *, u_char **, u_int *, u_char *, 93 u_int); 94 95 #endif /* AUTHFD_H */ 96