mirror of
https://git.FreeBSD.org/src.git
synced 2024-12-11 09:50:12 +00:00
139 lines
4.6 KiB
C
139 lines
4.6 KiB
C
/*
|
|
* 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 1.16 2000/12/20 19:37:21 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
|
|
|
|
/* 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);
|
|
|
|
#endif /* AUTHFD_H */
|