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7e8e820153
- [auth-rh-rsa.c auth-rsa.c authfd.c authfd.h hostfile.c mpaux.c]
[mpaux.h ssh-add.c ssh-agent.c ssh.h ssh.c sshd.c]
the keysize of rsa-parameter 'n' is passed implizit,
a few more checks and warnings about 'pretended' keysizes.
- [cipher.c cipher.h packet.c packet.h sshd.c]
remove support for cipher RC4
- [ssh.c]
a note for legay systems about secuity issues with permanently_set_uid(),
the private hostkey and ptrace()
- [sshconnect.c]
more detailed messages about adding and checking hostkeys
103 lines
3.7 KiB
C
103 lines
3.7 KiB
C
/*
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authfd.h
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Author: Tatu Ylonen <ylo@cs.hut.fi>
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Copyright (c) 1995 Tatu Ylonen <ylo@cs.hut.fi>, Espoo, Finland
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All rights reserved
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Created: Wed Mar 29 01:17:41 1995 ylo
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Functions to interface with the SSH_AUTHENTICATION_FD socket.
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*/
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/* RCSID("$Id: authfd.h,v 1.2 1999/11/16 02:37:16 damien Exp $"); */
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#ifndef AUTHFD_H
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#define AUTHFD_H
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#include "buffer.h"
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/* Messages for the authentication agent connection. */
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#define SSH_AGENTC_REQUEST_RSA_IDENTITIES 1
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#define SSH_AGENT_RSA_IDENTITIES_ANSWER 2
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#define SSH_AGENTC_RSA_CHALLENGE 3
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#define SSH_AGENT_RSA_RESPONSE 4
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#define SSH_AGENT_FAILURE 5
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#define SSH_AGENT_SUCCESS 6
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#define SSH_AGENTC_ADD_RSA_IDENTITY 7
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#define SSH_AGENTC_REMOVE_RSA_IDENTITY 8
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#define SSH_AGENTC_REMOVE_ALL_RSA_IDENTITIES 9
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typedef struct
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{
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int fd;
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Buffer packet;
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Buffer identities;
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int howmany;
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} AuthenticationConnection;
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/* Returns the number of the authentication fd, or -1 if there is none. */
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int ssh_get_authentication_socket();
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/* This should be called for any descriptor returned by
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ssh_get_authentication_socket(). Depending on the way the descriptor was
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obtained, this may close the descriptor. */
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void ssh_close_authentication_socket(int authfd);
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/* Opens and connects a private socket for communication with the
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authentication agent. Returns NULL if an error occurred and the
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connection could not be opened. The connection should be closed by
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the caller by calling ssh_close_authentication_connection(). */
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AuthenticationConnection *ssh_get_authentication_connection();
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/* Closes the connection to the authentication agent and frees any associated
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memory. */
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void ssh_close_authentication_connection(AuthenticationConnection *ac);
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/* Returns the first authentication identity held by the agent.
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Returns true if an identity is available, 0 otherwise.
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The caller must initialize the integers before the call, and free the
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comment after a successful call (before calling ssh_get_next_identity). */
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int ssh_get_first_identity(AuthenticationConnection *connection,
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BIGNUM *e, BIGNUM *n, char **comment);
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/* Returns the next authentication identity for the agent. Other functions
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can be called between this and ssh_get_first_identity or two calls of this
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function. This returns 0 if there are no more identities. The caller
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must free comment after a successful return. */
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int ssh_get_next_identity(AuthenticationConnection *connection,
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BIGNUM *e, BIGNUM *n, char **comment);
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/* Requests the agent to decrypt the given challenge. Returns true if
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the agent claims it was able to decrypt it. */
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int ssh_decrypt_challenge(AuthenticationConnection *auth,
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BIGNUM *e, BIGNUM *n, BIGNUM *challenge,
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unsigned char session_id[16],
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unsigned int response_type,
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unsigned char response[16]);
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/* Adds an identity to the authentication server. This call is not meant to
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be used by normal applications. This returns true if the identity
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was successfully added. */
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int ssh_add_identity(AuthenticationConnection *connection,
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RSA *key, const char *comment);
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/* Removes the identity from the authentication server. This call is
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not meant to be used by normal applications. This returns true if the
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identity was successfully added. */
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int ssh_remove_identity(AuthenticationConnection *connection,
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RSA *key);
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/* Removes all identities from the authentication agent. This call is not
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meant to be used by normal applications. This returns true if the
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operation was successful. */
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int ssh_remove_all_identities(AuthenticationConnection *connection);
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/* Closes the connection to the authentication agent. */
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void ssh_close_authentication(AuthenticationConnection *connection);
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#endif /* AUTHFD_H */
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