diff options
Diffstat (limited to 'crypto/openssh/authfd.h')
| -rw-r--r-- | crypto/openssh/authfd.h | 119 |
1 files changed, 119 insertions, 0 deletions
diff --git a/crypto/openssh/authfd.h b/crypto/openssh/authfd.h new file mode 100644 index 000000000000..2af4858052fd --- /dev/null +++ b/crypto/openssh/authfd.h @@ -0,0 +1,119 @@ +/* + * + * authfd.h + * + * Author: Tatu Ylonen <ylo@cs.hut.fi> + * + * Copyright (c) 1995 Tatu Ylonen <ylo@cs.hut.fi>, Espoo, Finland + * All rights reserved + * + * Created: Wed Mar 29 01:17:41 1995 ylo + * + * Functions to interface with the SSH_AUTHENTICATION_FD socket. + * + */ + +/* RCSID("$Id: authfd.h,v 1.6 1999/11/24 19:53:44 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 + +typedef struct { + int fd; + Buffer packet; + Buffer identities; + int howmany; +} AuthenticationConnection; +/* Returns the number of the authentication fd, or -1 if there is none. */ +int ssh_get_authentication_socket(); + +/* + * 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(); + +/* + * Closes the connection to the authentication agent and frees any associated + * memory. + */ +void ssh_close_authentication_connection(AuthenticationConnection * ac); + +/* + * Returns the first authentication identity held by the agent. Returns true + * if an identity is available, 0 otherwise. The caller must initialize the + * integers before the call, and free the comment after a successful call + * (before calling ssh_get_next_identity). + */ +int +ssh_get_first_identity(AuthenticationConnection * connection, + BIGNUM * e, BIGNUM * n, char **comment); + +/* + * 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 0 if there are no more identities. The caller + * must free comment after a successful return. + */ +int +ssh_get_next_identity(AuthenticationConnection * connection, + BIGNUM * e, BIGNUM * n, char **comment); + +/* 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, + BIGNUM * e, BIGNUM * n, BIGNUM * challenge, + unsigned char session_id[16], + unsigned int response_type, + unsigned char response[16]); + +/* + * 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 * connection, RSA * 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 * connection, RSA * 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 * connection); + +/* Closes the connection to the authentication agent. */ +void ssh_close_authentication(AuthenticationConnection * connection); + +#endif /* AUTHFD_H */ |