Annotation of src/usr.bin/ssh/authfd.h, Revision 1.13.2.1
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:
1.13.2.1! jason 14: /* RCSID("$OpenBSD: authfd.h,v 1.16 2000/12/20 19:37:21 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:
41: /* additional error code for ssh.com's ssh-agent2 */
42: #define SSH_COM_AGENT2_FAILURE 102
1.12 markus 43:
44: #define SSH_AGENT_OLD_SIGNATURE 0x01
45:
1.9 markus 46:
1.5 deraadt 47: typedef struct {
48: int fd;
49: Buffer identities;
50: int howmany;
51: } AuthenticationConnection;
1.10 markus 52:
1.1 deraadt 53: /* Returns the number of the authentication fd, or -1 if there is none. */
1.13.2.1! jason 54: int ssh_get_authentication_socket(void);
1.1 deraadt 55:
1.6 markus 56: /*
57: * This should be called for any descriptor returned by
58: * ssh_get_authentication_socket(). Depending on the way the descriptor was
59: * obtained, this may close the descriptor.
60: */
1.5 deraadt 61: void ssh_close_authentication_socket(int authfd);
1.1 deraadt 62:
1.6 markus 63: /*
64: * Opens and connects a private socket for communication with the
65: * authentication agent. Returns NULL if an error occurred and the
66: * connection could not be opened. The connection should be closed by the
67: * caller by calling ssh_close_authentication_connection().
68: */
1.13.2.1! jason 69: AuthenticationConnection *ssh_get_authentication_connection(void);
1.1 deraadt 70:
1.6 markus 71: /*
72: * Closes the connection to the authentication agent and frees any associated
73: * memory.
74: */
1.10 markus 75: void ssh_close_authentication_connection(AuthenticationConnection *auth);
1.1 deraadt 76:
1.6 markus 77: /*
1.13.2.1! jason 78: * Returns the number authentication identity held by the agent.
! 79: */
! 80: int ssh_get_num_identities(AuthenticationConnection *auth, int version);
! 81:
! 82: /*
1.10 markus 83: * Returns the first authentication identity held by the agent or NULL if
84: * no identies are available. Caller must free comment and key.
85: * Note that you cannot mix calls with different versions.
1.6 markus 86: */
1.10 markus 87: Key *ssh_get_first_identity(AuthenticationConnection *auth, char **comment, int version);
1.1 deraadt 88:
1.6 markus 89: /*
90: * Returns the next authentication identity for the agent. Other functions
91: * can be called between this and ssh_get_first_identity or two calls of this
1.10 markus 92: * function. This returns NULL if there are no more identities. The caller
93: * must free key and comment after a successful return.
1.6 markus 94: */
1.10 markus 95: Key *ssh_get_next_identity(AuthenticationConnection *auth, char **comment, int version);
1.1 deraadt 96:
1.10 markus 97: /*
98: * Requests the agent to decrypt the given challenge. Returns true if the
99: * agent claims it was able to decrypt it.
100: */
1.7 markus 101: int
1.10 markus 102: ssh_decrypt_challenge(AuthenticationConnection *auth,
103: Key *key, BIGNUM * challenge,
1.13.2.1! jason 104: u_char session_id[16],
! 105: u_int response_type,
! 106: u_char response[16]);
1.1 deraadt 107:
1.10 markus 108: /* Requests the agent to sign data using key */
109: int
110: ssh_agent_sign(AuthenticationConnection *auth,
111: Key *key,
1.13.2.1! jason 112: u_char **sigp, int *lenp,
! 113: u_char *data, int datalen);
1.10 markus 114:
1.6 markus 115: /*
116: * Adds an identity to the authentication server. This call is not meant to
117: * be used by normal applications. This returns true if the identity was
118: * successfully added.
119: */
1.7 markus 120: int
1.10 markus 121: ssh_add_identity(AuthenticationConnection *auth, Key *key,
1.6 markus 122: const char *comment);
123:
124: /*
125: * Removes the identity from the authentication server. This call is not
126: * meant to be used by normal applications. This returns true if the
127: * identity was successfully added.
128: */
1.10 markus 129: int ssh_remove_identity(AuthenticationConnection *auth, Key *key);
1.6 markus 130:
131: /*
132: * Removes all identities from the authentication agent. This call is not
133: * meant to be used by normal applications. This returns true if the
134: * operation was successful.
135: */
1.10 markus 136: int ssh_remove_all_identities(AuthenticationConnection *auth, int version);
1.1 deraadt 137:
1.5 deraadt 138: #endif /* AUTHFD_H */
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