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317a38ab65
Some notable changes, from upstream's release notes: - sshd(8): Remove support for obsolete "host/port" syntax. - ssh(1): When prompting whether to record a new host key, accept the key fingerprint as a synonym for "yes". - ssh-keygen(1): when acting as a CA and signing certificates with an RSA key, default to using the rsa-sha2-512 signature algorithm. - ssh(1), sshd(8), ssh-keygen(1): this release removes the "ssh-rsa" (RSA/SHA1) algorithm from those accepted for certificate signatures. - ssh-sk-helper(8): this is a new binary. It is used by the FIDO/U2F support to provide address-space isolation for token middleware libraries (including the internal one). - ssh(1): this release enables UpdateHostkeys by default subject to some conservative preconditions. - scp(1): this release changes the behaviour of remote to remote copies (e.g. "scp host-a:/path host-b:") to transfer through the local host by default. - scp(1): experimental support for transfers using the SFTP protocol as a replacement for the venerable SCP/RCP protocol that it has traditionally used. Additional integration work is needed to support FIDO/U2F in the base system. Deprecation Notice ------------------ OpenSSH will disable the ssh-rsa signature scheme by default in the next release. Reviewed by: imp MFC after: 1 month Relnotes: Yes Sponsored by: The FreeBSD Foundation Differential Revision: https://reviews.freebsd.org/D29985 (cherry picked from commit19261079b7) (cherry picked from commitf448c3ed4a) (cherry picked from commit1f290c707a) (cherry picked from commit0f9bafdfc3) (cherry picked from commitadb56e58e8) (cherry picked from commit576b58108c) (cherry picked from commit1c99af1ebe) (cherry picked from commit87152f3405) (cherry picked from commit172fa4aa75)
94 lines
3.2 KiB
C
94 lines
3.2 KiB
C
/* $OpenBSD: authfd.h,v 1.49 2020/06/26 05:03:36 djm Exp $ */
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/*
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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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* Functions to interface with the SSH_AUTHENTICATION_FD socket.
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*
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* As far as I am concerned, the code I have written for this software
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* can be used freely for any purpose. Any derived versions of this
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* software must be clearly marked as such, and if the derived work is
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* incompatible with the protocol description in the RFC file, it must be
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* called by a name other than "ssh" or "Secure Shell".
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*/
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#ifndef AUTHFD_H
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#define AUTHFD_H
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/* List of identities returned by ssh_fetch_identitylist() */
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struct ssh_identitylist {
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size_t nkeys;
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struct sshkey **keys;
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char **comments;
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};
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int ssh_get_authentication_socket(int *fdp);
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int ssh_get_authentication_socket_path(const char *authsocket, int *fdp);
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void ssh_close_authentication_socket(int sock);
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int ssh_lock_agent(int sock, int lock, const char *password);
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int ssh_fetch_identitylist(int sock, struct ssh_identitylist **idlp);
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void ssh_free_identitylist(struct ssh_identitylist *idl);
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int ssh_add_identity_constrained(int sock, struct sshkey *key,
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const char *comment, u_int life, u_int confirm, u_int maxsign,
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const char *provider);
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int ssh_agent_has_key(int sock, const struct sshkey *key);
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int ssh_remove_identity(int sock, const struct sshkey *key);
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int ssh_update_card(int sock, int add, const char *reader_id,
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const char *pin, u_int life, u_int confirm);
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int ssh_remove_all_identities(int sock, int version);
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int ssh_agent_sign(int sock, const struct sshkey *key,
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u_char **sigp, size_t *lenp,
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const u_char *data, size_t datalen, const char *alg, u_int compat);
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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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/* private OpenSSH extensions for SSH2 */
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#define SSH2_AGENTC_REQUEST_IDENTITIES 11
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#define SSH2_AGENT_IDENTITIES_ANSWER 12
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#define SSH2_AGENTC_SIGN_REQUEST 13
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#define SSH2_AGENT_SIGN_RESPONSE 14
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#define SSH2_AGENTC_ADD_IDENTITY 17
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#define SSH2_AGENTC_REMOVE_IDENTITY 18
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#define SSH2_AGENTC_REMOVE_ALL_IDENTITIES 19
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/* smartcard */
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#define SSH_AGENTC_ADD_SMARTCARD_KEY 20
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#define SSH_AGENTC_REMOVE_SMARTCARD_KEY 21
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/* lock/unlock the agent */
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#define SSH_AGENTC_LOCK 22
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#define SSH_AGENTC_UNLOCK 23
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/* add key with constraints */
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#define SSH_AGENTC_ADD_RSA_ID_CONSTRAINED 24
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#define SSH2_AGENTC_ADD_ID_CONSTRAINED 25
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#define SSH_AGENTC_ADD_SMARTCARD_KEY_CONSTRAINED 26
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#define SSH_AGENT_CONSTRAIN_LIFETIME 1
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#define SSH_AGENT_CONSTRAIN_CONFIRM 2
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#define SSH_AGENT_CONSTRAIN_MAXSIGN 3
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#define SSH_AGENT_CONSTRAIN_EXTENSION 255
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/* extended failure messages */
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#define SSH2_AGENT_FAILURE 30
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/* additional error code for ssh.com's ssh-agent2 */
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#define SSH_COM_AGENT2_FAILURE 102
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#define SSH_AGENT_OLD_SIGNATURE 0x01
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#define SSH_AGENT_RSA_SHA2_256 0x02
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#define SSH_AGENT_RSA_SHA2_512 0x04
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#endif /* AUTHFD_H */
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