Annotation of src/usr.bin/ssh/authfd.h, Revision 1.18
1.1 deraadt 1: /*
1.5 deraadt 2: * Author: Tatu Ylonen <ylo@cs.hut.fi>
3: * Copyright (c) 1995 Tatu Ylonen <ylo@cs.hut.fi>, Espoo, Finland
4: * All rights reserved
5: * Functions to interface with the SSH_AUTHENTICATION_FD socket.
1.7 markus 6: *
1.11 deraadt 7: * As far as I am concerned, the code I have written for this software
8: * can be used freely for any purpose. Any derived versions of this
9: * software must be clearly marked as such, and if the derived work is
10: * incompatible with the protocol description in the RFC file, it must be
11: * called by a name other than "ssh" or "Secure Shell".
1.5 deraadt 12: */
1.1 deraadt 13:
1.18 ! itojun 14: /* RCSID("$OpenBSD: authfd.h,v 1.17 2001/06/26 04:59:59 markus Exp $"); */
1.1 deraadt 15:
16: #ifndef AUTHFD_H
17: #define AUTHFD_H
18:
19: #include "buffer.h"
20:
21: /* Messages for the authentication agent connection. */
22: #define SSH_AGENTC_REQUEST_RSA_IDENTITIES 1
23: #define SSH_AGENT_RSA_IDENTITIES_ANSWER 2
24: #define SSH_AGENTC_RSA_CHALLENGE 3
25: #define SSH_AGENT_RSA_RESPONSE 4
26: #define SSH_AGENT_FAILURE 5
27: #define SSH_AGENT_SUCCESS 6
28: #define SSH_AGENTC_ADD_RSA_IDENTITY 7
29: #define SSH_AGENTC_REMOVE_RSA_IDENTITY 8
30: #define SSH_AGENTC_REMOVE_ALL_RSA_IDENTITIES 9
31:
1.13 markus 32: /* private OpenSSH extensions for SSH2 */
1.9 markus 33: #define SSH2_AGENTC_REQUEST_IDENTITIES 11
34: #define SSH2_AGENT_IDENTITIES_ANSWER 12
35: #define SSH2_AGENTC_SIGN_REQUEST 13
36: #define SSH2_AGENT_SIGN_RESPONSE 14
37: #define SSH2_AGENTC_ADD_IDENTITY 17
38: #define SSH2_AGENTC_REMOVE_IDENTITY 18
39: #define SSH2_AGENTC_REMOVE_ALL_IDENTITIES 19
1.13 markus 40:
1.17 markus 41: /* smartcard */
42: #define SSH_AGENTC_ADD_SMARTCARD_KEY 20
43: #define SSH_AGENTC_REMOVE_SMARTCARD_KEY 21
44:
1.13 markus 45: /* additional error code for ssh.com's ssh-agent2 */
46: #define SSH_COM_AGENT2_FAILURE 102
1.12 markus 47:
48: #define SSH_AGENT_OLD_SIGNATURE 0x01
49:
1.9 markus 50:
1.5 deraadt 51: typedef struct {
52: int fd;
53: Buffer identities;
54: int howmany;
55: } AuthenticationConnection;
1.10 markus 56:
1.1 deraadt 57: /* Returns the number of the authentication fd, or -1 if there is none. */
1.16 markus 58: int ssh_get_authentication_socket(void);
1.1 deraadt 59:
1.6 markus 60: /*
61: * This should be called for any descriptor returned by
62: * ssh_get_authentication_socket(). Depending on the way the descriptor was
63: * obtained, this may close the descriptor.
64: */
1.18 ! itojun 65: void ssh_close_authentication_socket(int);
1.1 deraadt 66:
1.6 markus 67: /*
68: * Opens and connects a private socket for communication with the
69: * authentication agent. Returns NULL if an error occurred and the
70: * connection could not be opened. The connection should be closed by the
71: * caller by calling ssh_close_authentication_connection().
72: */
1.16 markus 73: AuthenticationConnection *ssh_get_authentication_connection(void);
1.1 deraadt 74:
1.6 markus 75: /*
76: * Closes the connection to the authentication agent and frees any associated
77: * memory.
78: */
1.18 ! itojun 79: void ssh_close_authentication_connection(AuthenticationConnection *);
1.14 markus 80:
81: /*
82: * Returns the number authentication identity held by the agent.
83: */
1.18 ! itojun 84: int ssh_get_num_identities(AuthenticationConnection *, int);
1.1 deraadt 85:
1.6 markus 86: /*
1.10 markus 87: * Returns the first authentication identity held by the agent or NULL if
88: * no identies are available. Caller must free comment and key.
89: * Note that you cannot mix calls with different versions.
1.6 markus 90: */
1.18 ! itojun 91: Key *ssh_get_first_identity(AuthenticationConnection *, char **, int);
1.1 deraadt 92:
1.6 markus 93: /*
94: * Returns the next authentication identity for the agent. Other functions
95: * can be called between this and ssh_get_first_identity or two calls of this
1.10 markus 96: * function. This returns NULL if there are no more identities. The caller
97: * must free key and comment after a successful return.
1.6 markus 98: */
1.18 ! itojun 99: Key *ssh_get_next_identity(AuthenticationConnection *, char **, int);
1.1 deraadt 100:
1.10 markus 101: /*
102: * Requests the agent to decrypt the given challenge. Returns true if the
103: * agent claims it was able to decrypt it.
104: */
1.7 markus 105: int
1.18 ! itojun 106: ssh_decrypt_challenge(AuthenticationConnection *, Key *, BIGNUM *, u_char[16],
! 107: u_int, u_char[16]);
1.1 deraadt 108:
1.10 markus 109: /* Requests the agent to sign data using key */
110: int
1.18 ! itojun 111: ssh_agent_sign(AuthenticationConnection *, Key *, u_char **, int *,
! 112: u_char *, int);
1.10 markus 113:
1.6 markus 114: /*
115: * Adds an identity to the authentication server. This call is not meant to
116: * be used by normal applications. This returns true if the identity was
117: * successfully added.
118: */
1.7 markus 119: int
1.18 ! itojun 120: ssh_add_identity(AuthenticationConnection *, Key *, const char *);
1.6 markus 121:
122: /*
123: * Removes the identity from the authentication server. This call is not
124: * meant to be used by normal applications. This returns true if the
125: * identity was successfully added.
126: */
1.18 ! itojun 127: int ssh_remove_identity(AuthenticationConnection *, Key *);
1.6 markus 128:
129: /*
130: * Removes all identities from the authentication agent. This call is not
131: * meant to be used by normal applications. This returns true if the
132: * operation was successful.
133: */
1.18 ! itojun 134: int ssh_remove_all_identities(AuthenticationConnection *, int);
1.17 markus 135:
1.18 ! itojun 136: int ssh_update_card(AuthenticationConnection *, int, int);
1.1 deraadt 137:
1.5 deraadt 138: #endif /* AUTHFD_H */
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