freebsd-nq/crypto/openssh/log.h
Ed Maste 19261079b7 openssh: update to OpenSSH v8.7p1
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
2021-09-07 21:05:51 -04:00

133 lines
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C

/* $OpenBSD: log.h,v 1.33 2021/04/15 16:24:31 markus Exp $ */
/*
* Author: Tatu Ylonen <ylo@cs.hut.fi>
* Copyright (c) 1995 Tatu Ylonen <ylo@cs.hut.fi>, Espoo, Finland
* All rights reserved
*
* As far as I am concerned, the code I have written for this software
* can be used freely for any purpose. Any derived versions of this
* software must be clearly marked as such, and if the derived work is
* incompatible with the protocol description in the RFC file, it must be
* called by a name other than "ssh" or "Secure Shell".
*/
#ifndef SSH_LOG_H
#define SSH_LOG_H
#include <stdarg.h> /* va_list */
#include "ssherr.h" /* ssh_err() */
/* Supported syslog facilities and levels. */
typedef enum {
SYSLOG_FACILITY_DAEMON,
SYSLOG_FACILITY_USER,
SYSLOG_FACILITY_AUTH,
#ifdef LOG_AUTHPRIV
SYSLOG_FACILITY_AUTHPRIV,
#endif
SYSLOG_FACILITY_LOCAL0,
SYSLOG_FACILITY_LOCAL1,
SYSLOG_FACILITY_LOCAL2,
SYSLOG_FACILITY_LOCAL3,
SYSLOG_FACILITY_LOCAL4,
SYSLOG_FACILITY_LOCAL5,
SYSLOG_FACILITY_LOCAL6,
SYSLOG_FACILITY_LOCAL7,
SYSLOG_FACILITY_NOT_SET = -1
} SyslogFacility;
typedef enum {
SYSLOG_LEVEL_QUIET,
SYSLOG_LEVEL_FATAL,
SYSLOG_LEVEL_ERROR,
SYSLOG_LEVEL_INFO,
SYSLOG_LEVEL_VERBOSE,
SYSLOG_LEVEL_DEBUG1,
SYSLOG_LEVEL_DEBUG2,
SYSLOG_LEVEL_DEBUG3,
SYSLOG_LEVEL_NOT_SET = -1
} LogLevel;
typedef void (log_handler_fn)(LogLevel, int, const char *, void *);
void log_init(const char *, LogLevel, SyslogFacility, int);
LogLevel log_level_get(void);
int log_change_level(LogLevel);
int log_is_on_stderr(void);
void log_redirect_stderr_to(const char *);
void log_verbose_add(const char *);
void log_verbose_reset(void);
SyslogFacility log_facility_number(char *);
const char * log_facility_name(SyslogFacility);
LogLevel log_level_number(char *);
const char * log_level_name(LogLevel);
void set_log_handler(log_handler_fn *, void *);
void cleanup_exit(int) __attribute__((noreturn));
void sshlog(const char *, const char *, int, int,
LogLevel, const char *, const char *, ...)
__attribute__((format(printf, 7, 8)));
void sshlogv(const char *, const char *, int, int,
LogLevel, const char *, const char *, va_list);
void sshsigdie(const char *, const char *, int, int,
LogLevel, const char *, const char *, ...) __attribute__((noreturn))
__attribute__((format(printf, 7, 8)));
void sshlogdie(const char *, const char *, int, int,
LogLevel, const char *, const char *, ...) __attribute__((noreturn))
__attribute__((format(printf, 7, 8)));
void sshfatal(const char *, const char *, int, int,
LogLevel, const char *, const char *, ...) __attribute__((noreturn))
__attribute__((format(printf, 7, 8)));
void sshlogdirect(LogLevel, int, const char *, ...)
__attribute__((format(printf, 3, 4)));
#define do_log2(level, ...) sshlog(__FILE__, __func__, __LINE__, 0, level, NULL, __VA_ARGS__)
#define debug3(...) sshlog(__FILE__, __func__, __LINE__, 0, SYSLOG_LEVEL_DEBUG3, NULL, __VA_ARGS__)
#define debug2(...) sshlog(__FILE__, __func__, __LINE__, 0, SYSLOG_LEVEL_DEBUG2, NULL, __VA_ARGS__)
#define debug(...) sshlog(__FILE__, __func__, __LINE__, 0, SYSLOG_LEVEL_DEBUG1, NULL, __VA_ARGS__)
#define verbose(...) sshlog(__FILE__, __func__, __LINE__, 0, SYSLOG_LEVEL_VERBOSE, NULL, __VA_ARGS__)
#define logit(...) sshlog(__FILE__, __func__, __LINE__, 0, SYSLOG_LEVEL_INFO, NULL, __VA_ARGS__)
#define error(...) sshlog(__FILE__, __func__, __LINE__, 0, SYSLOG_LEVEL_ERROR, NULL, __VA_ARGS__)
#define fatal(...) sshfatal(__FILE__, __func__, __LINE__, 0, SYSLOG_LEVEL_FATAL, NULL, __VA_ARGS__)
#define logdie(...) sshlogdie(__FILE__, __func__, __LINE__, 0, SYSLOG_LEVEL_ERROR, NULL, __VA_ARGS__)
#define sigdie(...) sshsigdie(__FILE__, __func__, __LINE__, 0, SYSLOG_LEVEL_ERROR, NULL, __VA_ARGS__)
/* Variants that prepend the caller's function */
#define do_log2_f(level, ...) sshlog(__FILE__, __func__, __LINE__, 1, level, NULL, __VA_ARGS__)
#define debug3_f(...) sshlog(__FILE__, __func__, __LINE__, 1, SYSLOG_LEVEL_DEBUG3, NULL, __VA_ARGS__)
#define debug2_f(...) sshlog(__FILE__, __func__, __LINE__, 1, SYSLOG_LEVEL_DEBUG2, NULL, __VA_ARGS__)
#define debug_f(...) sshlog(__FILE__, __func__, __LINE__, 1, SYSLOG_LEVEL_DEBUG1, NULL, __VA_ARGS__)
#define verbose_f(...) sshlog(__FILE__, __func__, __LINE__, 1, SYSLOG_LEVEL_VERBOSE, NULL, __VA_ARGS__)
#define logit_f(...) sshlog(__FILE__, __func__, __LINE__, 1, SYSLOG_LEVEL_INFO, NULL, __VA_ARGS__)
#define error_f(...) sshlog(__FILE__, __func__, __LINE__, 1, SYSLOG_LEVEL_ERROR, NULL, __VA_ARGS__)
#define fatal_f(...) sshfatal(__FILE__, __func__, __LINE__, 1, SYSLOG_LEVEL_FATAL, NULL, __VA_ARGS__)
#define logdie_f(...) sshlogdie(__FILE__, __func__, __LINE__, 1, SYSLOG_LEVEL_ERROR, NULL, __VA_ARGS__)
#define sigdie_f(...) sshsigdie(__FILE__, __func__, __LINE__, 1, SYSLOG_LEVEL_ERROR, NULL, __VA_ARGS__)
/* Variants that appends a ssh_err message */
#define do_log2_r(r, level, ...) sshlog(__FILE__, __func__, __LINE__, 0, level, ssh_err(r), __VA_ARGS__)
#define debug3_r(r, ...) sshlog(__FILE__, __func__, __LINE__, 0, SYSLOG_LEVEL_DEBUG3, ssh_err(r), __VA_ARGS__)
#define debug2_r(r, ...) sshlog(__FILE__, __func__, __LINE__, 0, SYSLOG_LEVEL_DEBUG2, ssh_err(r), __VA_ARGS__)
#define debug_r(r, ...) sshlog(__FILE__, __func__, __LINE__, 0, SYSLOG_LEVEL_DEBUG1, ssh_err(r), __VA_ARGS__)
#define verbose_r(r, ...) sshlog(__FILE__, __func__, __LINE__, 0, SYSLOG_LEVEL_VERBOSE, ssh_err(r), __VA_ARGS__)
#define logit_r(r, ...) sshlog(__FILE__, __func__, __LINE__, 0, SYSLOG_LEVEL_INFO, ssh_err(r), __VA_ARGS__)
#define error_r(r, ...) sshlog(__FILE__, __func__, __LINE__, 0, SYSLOG_LEVEL_ERROR, ssh_err(r), __VA_ARGS__)
#define fatal_r(r, ...) sshfatal(__FILE__, __func__, __LINE__, 0, SYSLOG_LEVEL_FATAL, ssh_err(r), __VA_ARGS__)
#define logdie_r(r, ...) sshlogdie(__FILE__, __func__, __LINE__, 0, SYSLOG_LEVEL_ERROR, ssh_err(r), __VA_ARGS__)
#define sigdie_r(r, ...) sshsigdie(__FILE__, __func__, __LINE__, 0, SYSLOG_LEVEL_ERROR, ssh_err(r), __VA_ARGS__)
#define do_log2_fr(r, level, ...) sshlog(__FILE__, __func__, __LINE__, 1, level, ssh_err(r), __VA_ARGS__)
#define debug3_fr(r, ...) sshlog(__FILE__, __func__, __LINE__, 1, SYSLOG_LEVEL_DEBUG3, ssh_err(r), __VA_ARGS__)
#define debug2_fr(r, ...) sshlog(__FILE__, __func__, __LINE__, 1, SYSLOG_LEVEL_DEBUG2, ssh_err(r), __VA_ARGS__)
#define debug_fr(r, ...) sshlog(__FILE__, __func__, __LINE__, 1, SYSLOG_LEVEL_DEBUG1, ssh_err(r), __VA_ARGS__)
#define verbose_fr(r, ...) sshlog(__FILE__, __func__, __LINE__, 1, SYSLOG_LEVEL_VERBOSE, ssh_err(r), __VA_ARGS__)
#define logit_fr(r, ...) sshlog(__FILE__, __func__, __LINE__, 1, SYSLOG_LEVEL_INFO, ssh_err(r), __VA_ARGS__)
#define error_fr(r, ...) sshlog(__FILE__, __func__, __LINE__, 1, SYSLOG_LEVEL_ERROR, ssh_err(r), __VA_ARGS__)
#define fatal_fr(r, ...) sshfatal(__FILE__, __func__, __LINE__, 1, SYSLOG_LEVEL_FATAL, ssh_err(r), __VA_ARGS__)
#define logdie_fr(r, ...) sshlogdie(__FILE__, __func__, __LINE__, 1, SYSLOG_LEVEL_ERROR, ssh_err(r), __VA_ARGS__)
#define sigdie_fr(r, ...) sshsigdie(__FILE__, __func__, __LINE__, 1, SYSLOG_LEVEL_ERROR, ssh_err(r), __VA_ARGS__)
#endif