| /* |
| * Author: Tatu Ylonen <ylo@cs.hut.fi> |
| * Copyright (c) 1995 Tatu Ylonen <ylo@cs.hut.fi>, 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". |
| */ |
| |
| /* RCSID("$OpenBSD: authfd.h,v 1.17 2001/06/26 04:59:59 markus Exp $"); */ |
| |
| #ifndef AUTHFD_H |
| #define AUTHFD_H |
| |
| #include "buffer.h" |
| |
| /* 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 |
| |
| /* additional error code for ssh.com's ssh-agent2 */ |
| #define SSH_COM_AGENT2_FAILURE 102 |
| |
| #define SSH_AGENT_OLD_SIGNATURE 0x01 |
| |
| |
| typedef struct { |
| int fd; |
| Buffer identities; |
| int howmany; |
| } AuthenticationConnection; |
| |
| /* Returns the number of the authentication fd, or -1 if there is none. */ |
| int ssh_get_authentication_socket(void); |
| |
| /* |
| * This should be called for any descriptor returned by |
| * ssh_get_authentication_socket(). Depending on the way the descriptor was |
| * obtained, this may close the descriptor. |
| */ |
| void ssh_close_authentication_socket(int authfd); |
| |
| /* |
| * Opens and connects a private socket for communication with the |
| * authentication agent. Returns NULL if an error occurred and the |
| * connection could not be opened. The connection should be closed by the |
| * caller by calling ssh_close_authentication_connection(). |
| */ |
| AuthenticationConnection *ssh_get_authentication_connection(void); |
| |
| /* |
| * Closes the connection to the authentication agent and frees any associated |
| * memory. |
| */ |
| void ssh_close_authentication_connection(AuthenticationConnection *auth); |
| |
| /* |
| * Returns the number authentication identity held by the agent. |
| */ |
| int ssh_get_num_identities(AuthenticationConnection *auth, int version); |
| |
| /* |
| * Returns the first authentication identity held by the agent or NULL if |
| * no identies are available. Caller must free comment and key. |
| * Note that you cannot mix calls with different versions. |
| */ |
| Key *ssh_get_first_identity(AuthenticationConnection *auth, char **comment, int version); |
| |
| /* |
| * Returns the next authentication identity for the agent. Other functions |
| * can be called between this and ssh_get_first_identity or two calls of this |
| * function. This returns NULL if there are no more identities. The caller |
| * must free key and comment after a successful return. |
| */ |
| Key *ssh_get_next_identity(AuthenticationConnection *auth, char **comment, int version); |
| |
| /* |
| * Requests the agent to decrypt the given challenge. Returns true if the |
| * agent claims it was able to decrypt it. |
| */ |
| int |
| ssh_decrypt_challenge(AuthenticationConnection *auth, |
| Key *key, BIGNUM * challenge, |
| u_char session_id[16], |
| u_int response_type, |
| u_char response[16]); |
| |
| /* Requests the agent to sign data using key */ |
| int |
| ssh_agent_sign(AuthenticationConnection *auth, |
| Key *key, |
| u_char **sigp, int *lenp, |
| u_char *data, int datalen); |
| |
| /* |
| * Adds an identity to the authentication server. This call is not meant to |
| * be used by normal applications. This returns true if the identity was |
| * successfully added. |
| */ |
| int |
| ssh_add_identity(AuthenticationConnection *auth, Key *key, |
| const char *comment); |
| |
| /* |
| * Removes the identity from the authentication server. This call is not |
| * meant to be used by normal applications. This returns true if the |
| * identity was successfully added. |
| */ |
| int ssh_remove_identity(AuthenticationConnection *auth, Key *key); |
| |
| /* |
| * Removes all identities from the authentication agent. This call is not |
| * meant to be used by normal applications. This returns true if the |
| * operation was successful. |
| */ |
| int ssh_remove_all_identities(AuthenticationConnection *auth, int version); |
| |
| int ssh_update_card(AuthenticationConnection *auth, int add, int reader_id); |
| |
| #endif /* AUTHFD_H */ |