/* $NetBSD: authfd.h,v 1.16.2.1 2023/12/25 12:22:55 martin Exp $ */ /* $OpenBSD: authfd.h,v 1.52 2023/12/18 14:46:56 djm Exp $ */ /* * Author: Tatu Ylonen * Copyright (c) 1995 Tatu Ylonen , Espoo, Finland * All rights reserved * Functions to interface with the SSH_AUTHENTICATION_FD socket. * * As far as I am concerned, the code I have written for this software * can be used freely for any purpose. Any derived versions of this * software must be clearly marked as such, and if the derived work is * incompatible with the protocol description in the RFC file, it must be * called by a name other than "ssh" or "Secure Shell". */ #ifndef AUTHFD_H #define AUTHFD_H struct sshbuf; struct sshkey; /* List of identities returned by ssh_fetch_identitylist() */ struct ssh_identitylist { size_t nkeys; struct sshkey **keys; char **comments; }; /* Key destination restrictions */ struct dest_constraint_hop { char *user; /* wildcards allowed */ char *hostname; /* used to matching cert principals and for display */ int is_ca; u_int nkeys; /* number of entries in *both* 'keys' and 'key_is_ca' */ struct sshkey **keys; int *key_is_ca; }; struct dest_constraint { struct dest_constraint_hop from; struct dest_constraint_hop to; }; int ssh_get_authentication_socket(int *fdp); int ssh_get_authentication_socket_path(const char *authsocket, int *fdp); void ssh_close_authentication_socket(int sock); int ssh_lock_agent(int sock, int lock, const char *password); int ssh_fetch_identitylist(int sock, struct ssh_identitylist **idlp); void ssh_free_identitylist(struct ssh_identitylist *idl); int ssh_add_identity_constrained(int sock, struct sshkey *key, const char *comment, u_int life, u_int confirm, u_int maxsign, const char *provider, struct dest_constraint **dest_constraints, size_t ndest_constraints); int ssh_agent_has_key(int sock, const struct sshkey *key); int ssh_remove_identity(int sock, const struct sshkey *key); int ssh_update_card(int sock, int add, const char *reader_id, const char *pin, u_int life, u_int confirm, struct dest_constraint **dest_constraints, size_t ndest_constraints, int cert_only, struct sshkey **certs, size_t ncerts); int ssh_remove_all_identities(int sock, int version); int ssh_agent_sign(int sock, const struct sshkey *key, u_char **sigp, size_t *lenp, const u_char *data, size_t datalen, const char *alg, u_int compat); int ssh_agent_bind_hostkey(int sock, const struct sshkey *key, const struct sshbuf *session_id, const struct sshbuf *signature, int forwarding); /* Messages for the authentication agent connection. */ #define SSH_AGENTC_REQUEST_RSA_IDENTITIES 1 #define SSH_AGENT_RSA_IDENTITIES_ANSWER 2 #define SSH_AGENTC_RSA_CHALLENGE 3 #define SSH_AGENT_RSA_RESPONSE 4 #define SSH_AGENT_FAILURE 5 #define SSH_AGENT_SUCCESS 6 #define SSH_AGENTC_ADD_RSA_IDENTITY 7 #define SSH_AGENTC_REMOVE_RSA_IDENTITY 8 #define SSH_AGENTC_REMOVE_ALL_RSA_IDENTITIES 9 /* private OpenSSH extensions for SSH2 */ #define SSH2_AGENTC_REQUEST_IDENTITIES 11 #define SSH2_AGENT_IDENTITIES_ANSWER 12 #define SSH2_AGENTC_SIGN_REQUEST 13 #define SSH2_AGENT_SIGN_RESPONSE 14 #define SSH2_AGENTC_ADD_IDENTITY 17 #define SSH2_AGENTC_REMOVE_IDENTITY 18 #define SSH2_AGENTC_REMOVE_ALL_IDENTITIES 19 /* smartcard */ #define SSH_AGENTC_ADD_SMARTCARD_KEY 20 #define SSH_AGENTC_REMOVE_SMARTCARD_KEY 21 /* lock/unlock the agent */ #define SSH_AGENTC_LOCK 22 #define SSH_AGENTC_UNLOCK 23 /* add key with constraints */ #define SSH_AGENTC_ADD_RSA_ID_CONSTRAINED 24 #define SSH2_AGENTC_ADD_ID_CONSTRAINED 25 #define SSH_AGENTC_ADD_SMARTCARD_KEY_CONSTRAINED 26 /* generic extension mechanism */ #define SSH_AGENTC_EXTENSION 27 #define SSH_AGENT_CONSTRAIN_LIFETIME 1 #define SSH_AGENT_CONSTRAIN_CONFIRM 2 #define SSH_AGENT_CONSTRAIN_MAXSIGN 3 #define SSH_AGENT_CONSTRAIN_EXTENSION 255 /* extended failure messages */ #define SSH2_AGENT_FAILURE 30 /* additional error code for ssh.com's ssh-agent2 */ #define SSH_COM_AGENT2_FAILURE 102 #define SSH_AGENT_OLD_SIGNATURE 0x01 #define SSH_AGENT_RSA_SHA2_256 0x02 #define SSH_AGENT_RSA_SHA2_512 0x04 #endif /* AUTHFD_H */