1 /* $OpenBSD: authfd.h,v 1.36 2006/08/03 03:34:41 deraadt 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 #define SSH_AGENT_CONSTRAIN_LIFETIME 1 53 #define SSH_AGENT_CONSTRAIN_CONFIRM 2 54 55 /* extended failure messages */ 56 #define SSH2_AGENT_FAILURE 30 57 58 /* additional error code for ssh.com's ssh-agent2 */ 59 #define SSH_COM_AGENT2_FAILURE 102 60 61 #define SSH_AGENT_OLD_SIGNATURE 0x01 62 63 typedef struct { 64 int fd; 65 Buffer identities; 66 int howmany; 67 } AuthenticationConnection; 68 69 int ssh_agent_present(void); 70 int ssh_get_authentication_socket(void); 71 void ssh_close_authentication_socket(int); 72 73 AuthenticationConnection *ssh_get_authentication_connection(void); 74 void ssh_close_authentication_connection(AuthenticationConnection *); 75 int ssh_get_num_identities(AuthenticationConnection *, int); 76 Key *ssh_get_first_identity(AuthenticationConnection *, char **, int); 77 Key *ssh_get_next_identity(AuthenticationConnection *, char **, int); 78 int ssh_add_identity(AuthenticationConnection *, Key *, const char *); 79 int ssh_add_identity_constrained(AuthenticationConnection *, Key *, 80 const char *, u_int, u_int); 81 int ssh_remove_identity(AuthenticationConnection *, Key *); 82 int ssh_remove_all_identities(AuthenticationConnection *, int); 83 int ssh_lock_agent(AuthenticationConnection *, int, const char *); 84 int ssh_update_card(AuthenticationConnection *, int, const char *, 85 const char *, u_int, u_int); 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