1 /* $OpenBSD: authfd.h,v 1.43 2018/02/23 15:58:37 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 /* List of identities returned by ssh_fetch_identitylist() */ 20 struct ssh_identitylist { 21 size_t nkeys; 22 struct sshkey **keys; 23 char **comments; 24 }; 25 26 int ssh_get_authentication_socket(int *fdp); 27 void ssh_close_authentication_socket(int sock); 28 29 int ssh_lock_agent(int sock, int lock, const char *password); 30 int ssh_fetch_identitylist(int sock, struct ssh_identitylist **idlp); 31 void ssh_free_identitylist(struct ssh_identitylist *idl); 32 int ssh_add_identity_constrained(int sock, const struct sshkey *key, 33 const char *comment, u_int life, u_int confirm, u_int maxsign); 34 int ssh_remove_identity(int sock, struct sshkey *key); 35 int ssh_update_card(int sock, int add, const char *reader_id, 36 const char *pin, u_int life, u_int confirm); 37 int ssh_remove_all_identities(int sock, int version); 38 39 int ssh_decrypt_challenge(int sock, struct sshkey* key, BIGNUM *challenge, 40 u_char session_id[16], u_char response[16]); 41 int ssh_agent_sign(int sock, const struct sshkey *key, 42 u_char **sigp, size_t *lenp, 43 const u_char *data, size_t datalen, const char *alg, u_int compat); 44 45 /* Messages for the authentication agent connection. */ 46 #define SSH_AGENTC_REQUEST_RSA_IDENTITIES 1 47 #define SSH_AGENT_RSA_IDENTITIES_ANSWER 2 48 #define SSH_AGENTC_RSA_CHALLENGE 3 49 #define SSH_AGENT_RSA_RESPONSE 4 50 #define SSH_AGENT_FAILURE 5 51 #define SSH_AGENT_SUCCESS 6 52 #define SSH_AGENTC_ADD_RSA_IDENTITY 7 53 #define SSH_AGENTC_REMOVE_RSA_IDENTITY 8 54 #define SSH_AGENTC_REMOVE_ALL_RSA_IDENTITIES 9 55 56 /* private OpenSSH extensions for SSH2 */ 57 #define SSH2_AGENTC_REQUEST_IDENTITIES 11 58 #define SSH2_AGENT_IDENTITIES_ANSWER 12 59 #define SSH2_AGENTC_SIGN_REQUEST 13 60 #define SSH2_AGENT_SIGN_RESPONSE 14 61 #define SSH2_AGENTC_ADD_IDENTITY 17 62 #define SSH2_AGENTC_REMOVE_IDENTITY 18 63 #define SSH2_AGENTC_REMOVE_ALL_IDENTITIES 19 64 65 /* smartcard */ 66 #define SSH_AGENTC_ADD_SMARTCARD_KEY 20 67 #define SSH_AGENTC_REMOVE_SMARTCARD_KEY 21 68 69 /* lock/unlock the agent */ 70 #define SSH_AGENTC_LOCK 22 71 #define SSH_AGENTC_UNLOCK 23 72 73 /* add key with constraints */ 74 #define SSH_AGENTC_ADD_RSA_ID_CONSTRAINED 24 75 #define SSH2_AGENTC_ADD_ID_CONSTRAINED 25 76 #define SSH_AGENTC_ADD_SMARTCARD_KEY_CONSTRAINED 26 77 78 #define SSH_AGENT_CONSTRAIN_LIFETIME 1 79 #define SSH_AGENT_CONSTRAIN_CONFIRM 2 80 #define SSH_AGENT_CONSTRAIN_MAXSIGN 3 81 82 /* extended failure messages */ 83 #define SSH2_AGENT_FAILURE 30 84 85 /* additional error code for ssh.com's ssh-agent2 */ 86 #define SSH_COM_AGENT2_FAILURE 102 87 88 #define SSH_AGENT_OLD_SIGNATURE 0x01 89 #define SSH_AGENT_RSA_SHA2_256 0x02 90 #define SSH_AGENT_RSA_SHA2_512 0x04 91 92 #endif /* AUTHFD_H */ 93