HardenedBSD/contrib/openbsm/libbsm/au_errno.3

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Vendor import of OpenBSM 1.1 alpha4, which incorporates the following changes since the last imported OpenBSM release: OpenBSM 1.1 alpha 4 - With the addition of BSM error number mapping, we also need to map the local error number passed to audit_submit(3) to a BSM error number, rather than have the caller perform that conversion. - Reallocate user audit events to avoid collisions with Solaris; adopt a more formal allocation scheme, and add some events allocated in Solaris that will be of immediate use on other platforms. - Add an event for Calife. - Add au_strerror(3), which allows generating strings for BSM errors directly, rather than requiring applications to map to the local error space, which might not be able to entirely represent the BSM error number space. - Major auditd rewrite for launchd(8) support. Add libauditd library that is shared between launchd and auditd. - Add AUDIT_TRIGGER_INITIALIZE trigger (sent via 'audit -i') for (re)starting auditing under launchd(8) on Mac OS X. - Add 'current' symlink to active audit trail. - Add crash recovery of previous audit trail file when detected on audit startup that it has not been properly terminated. - Add the event AUE_audit_recovery to indicated when an audit trail file has been recovered from not being properly terminated. This event is stored in the new audit trail file and includes the path of recovered audit trail file. - Mac OS X and FreeBSD dependent code in auditd.c is separated into auditd_darwin.c and auditd_fbsd.c files. - Add an event for the posix_spawn(2) and fsgetpath(2) Mac OS X system calls. - For Mac OS X, we use ASL(3) instead of syslog(3) for logging. - Add support for NOTICE level logging. OpenBSM 1.1 alpha 3 - Add two new functions, au_bsm_to_errno() and au_errno_to_bsm(), to map between BSM error numbers (largely the Solaris definitions) and local errno(2) values for 32-bit and 64-bit return tokens. This is required as operating systems don't agree on some of the values of more recent error numbers. - Fix a bug how au_to_exec_args(3) and au_to_exec_env(3) calculates the total size for the token. This bug resulted in "unknown" tokens being printed after the exec args/env tokens. - Support for AUT_SOCKET_EX extended socket tokens, which describe a socket using a pair of IPv4/IPv6 and port tuples. - OpenBSM BSM file header version bumped for 1.1 release. - Deprecated Darwin constants, such as TRAILER_PAD_MAGIC, removed. Obtained from: TrustedBSD Project Sponsored by: Apple Inc.
2008-12-28 23:40:42 +01:00
.\"-
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.Dd December 8, 2008
.Dt AU_BSM_TO_ERRNO 3
.Os
.Sh NAME
.Nm au_bsm_to_errno ,
.Nm au_errno_to_bsm ,
.Nm au_strerror
.Nd "convert between BSM and local error numbers"
.Sh LIBRARY
.Lb libbsm
.Sh SYNOPSIS
.In bsm/libbsm.h
.Ft int
.Fn au_bsm_to_errno "u_char bsm_error" "int *errorp"
.Ft u_char
.Fn au_errno_to_bsm "int error"
.Ft const char *
.Fn au_strerror "int bsm_error"
.Sh DESCRIPTION
These interfaces may be used to convert between the local (
.Xr errno 2 )
and BSM error number spaces found in BSM return tokens.
.Pp
The
.Fn au_bsm_to_errno
function accepts a BSM error value,
2015-12-09 13:16:21 +01:00
.Fa bsm_error ,
Vendor import of OpenBSM 1.1 alpha4, which incorporates the following changes since the last imported OpenBSM release: OpenBSM 1.1 alpha 4 - With the addition of BSM error number mapping, we also need to map the local error number passed to audit_submit(3) to a BSM error number, rather than have the caller perform that conversion. - Reallocate user audit events to avoid collisions with Solaris; adopt a more formal allocation scheme, and add some events allocated in Solaris that will be of immediate use on other platforms. - Add an event for Calife. - Add au_strerror(3), which allows generating strings for BSM errors directly, rather than requiring applications to map to the local error space, which might not be able to entirely represent the BSM error number space. - Major auditd rewrite for launchd(8) support. Add libauditd library that is shared between launchd and auditd. - Add AUDIT_TRIGGER_INITIALIZE trigger (sent via 'audit -i') for (re)starting auditing under launchd(8) on Mac OS X. - Add 'current' symlink to active audit trail. - Add crash recovery of previous audit trail file when detected on audit startup that it has not been properly terminated. - Add the event AUE_audit_recovery to indicated when an audit trail file has been recovered from not being properly terminated. This event is stored in the new audit trail file and includes the path of recovered audit trail file. - Mac OS X and FreeBSD dependent code in auditd.c is separated into auditd_darwin.c and auditd_fbsd.c files. - Add an event for the posix_spawn(2) and fsgetpath(2) Mac OS X system calls. - For Mac OS X, we use ASL(3) instead of syslog(3) for logging. - Add support for NOTICE level logging. OpenBSM 1.1 alpha 3 - Add two new functions, au_bsm_to_errno() and au_errno_to_bsm(), to map between BSM error numbers (largely the Solaris definitions) and local errno(2) values for 32-bit and 64-bit return tokens. This is required as operating systems don't agree on some of the values of more recent error numbers. - Fix a bug how au_to_exec_args(3) and au_to_exec_env(3) calculates the total size for the token. This bug resulted in "unknown" tokens being printed after the exec args/env tokens. - Support for AUT_SOCKET_EX extended socket tokens, which describe a socket using a pair of IPv4/IPv6 and port tuples. - OpenBSM BSM file header version bumped for 1.1 release. - Deprecated Darwin constants, such as TRAILER_PAD_MAGIC, removed. Obtained from: TrustedBSD Project Sponsored by: Apple Inc.
2008-12-28 23:40:42 +01:00
and converts it to an
.Xr errno 2
that will be stored in the integer pointed to by
.Fa errorp
if successful.
This call will fail if the BSM error cannot be mapped into a local error
number, which may occur if the return token was generated on another
operating system.
.Pp
The
Vendor import of OpenBSM 1.1 alpha4, which incorporates the following changes since the last imported OpenBSM release: OpenBSM 1.1 alpha 4 - With the addition of BSM error number mapping, we also need to map the local error number passed to audit_submit(3) to a BSM error number, rather than have the caller perform that conversion. - Reallocate user audit events to avoid collisions with Solaris; adopt a more formal allocation scheme, and add some events allocated in Solaris that will be of immediate use on other platforms. - Add an event for Calife. - Add au_strerror(3), which allows generating strings for BSM errors directly, rather than requiring applications to map to the local error space, which might not be able to entirely represent the BSM error number space. - Major auditd rewrite for launchd(8) support. Add libauditd library that is shared between launchd and auditd. - Add AUDIT_TRIGGER_INITIALIZE trigger (sent via 'audit -i') for (re)starting auditing under launchd(8) on Mac OS X. - Add 'current' symlink to active audit trail. - Add crash recovery of previous audit trail file when detected on audit startup that it has not been properly terminated. - Add the event AUE_audit_recovery to indicated when an audit trail file has been recovered from not being properly terminated. This event is stored in the new audit trail file and includes the path of recovered audit trail file. - Mac OS X and FreeBSD dependent code in auditd.c is separated into auditd_darwin.c and auditd_fbsd.c files. - Add an event for the posix_spawn(2) and fsgetpath(2) Mac OS X system calls. - For Mac OS X, we use ASL(3) instead of syslog(3) for logging. - Add support for NOTICE level logging. OpenBSM 1.1 alpha 3 - Add two new functions, au_bsm_to_errno() and au_errno_to_bsm(), to map between BSM error numbers (largely the Solaris definitions) and local errno(2) values for 32-bit and 64-bit return tokens. This is required as operating systems don't agree on some of the values of more recent error numbers. - Fix a bug how au_to_exec_args(3) and au_to_exec_env(3) calculates the total size for the token. This bug resulted in "unknown" tokens being printed after the exec args/env tokens. - Support for AUT_SOCKET_EX extended socket tokens, which describe a socket using a pair of IPv4/IPv6 and port tuples. - OpenBSM BSM file header version bumped for 1.1 release. - Deprecated Darwin constants, such as TRAILER_PAD_MAGIC, removed. Obtained from: TrustedBSD Project Sponsored by: Apple Inc.
2008-12-28 23:40:42 +01:00
.Fn au_errno_to_bsm
function accepts a local
.Xr errno 2
value, and returns the BSM error number for it.
This call cannot fail, and instead returns a BSM error number indicating to
a later decoder that the error could not be encoded.
.Pp
The
.Fn au_strerror
function converts a BSM error value to a string, generally by converting first to a
Vendor import of OpenBSM 1.1 alpha4, which incorporates the following changes since the last imported OpenBSM release: OpenBSM 1.1 alpha 4 - With the addition of BSM error number mapping, we also need to map the local error number passed to audit_submit(3) to a BSM error number, rather than have the caller perform that conversion. - Reallocate user audit events to avoid collisions with Solaris; adopt a more formal allocation scheme, and add some events allocated in Solaris that will be of immediate use on other platforms. - Add an event for Calife. - Add au_strerror(3), which allows generating strings for BSM errors directly, rather than requiring applications to map to the local error space, which might not be able to entirely represent the BSM error number space. - Major auditd rewrite for launchd(8) support. Add libauditd library that is shared between launchd and auditd. - Add AUDIT_TRIGGER_INITIALIZE trigger (sent via 'audit -i') for (re)starting auditing under launchd(8) on Mac OS X. - Add 'current' symlink to active audit trail. - Add crash recovery of previous audit trail file when detected on audit startup that it has not been properly terminated. - Add the event AUE_audit_recovery to indicated when an audit trail file has been recovered from not being properly terminated. This event is stored in the new audit trail file and includes the path of recovered audit trail file. - Mac OS X and FreeBSD dependent code in auditd.c is separated into auditd_darwin.c and auditd_fbsd.c files. - Add an event for the posix_spawn(2) and fsgetpath(2) Mac OS X system calls. - For Mac OS X, we use ASL(3) instead of syslog(3) for logging. - Add support for NOTICE level logging. OpenBSM 1.1 alpha 3 - Add two new functions, au_bsm_to_errno() and au_errno_to_bsm(), to map between BSM error numbers (largely the Solaris definitions) and local errno(2) values for 32-bit and 64-bit return tokens. This is required as operating systems don't agree on some of the values of more recent error numbers. - Fix a bug how au_to_exec_args(3) and au_to_exec_env(3) calculates the total size for the token. This bug resulted in "unknown" tokens being printed after the exec args/env tokens. - Support for AUT_SOCKET_EX extended socket tokens, which describe a socket using a pair of IPv4/IPv6 and port tuples. - OpenBSM BSM file header version bumped for 1.1 release. - Deprecated Darwin constants, such as TRAILER_PAD_MAGIC, removed. Obtained from: TrustedBSD Project Sponsored by: Apple Inc.
2008-12-28 23:40:42 +01:00
local error number and using the local
.Xr strerror 3
function, but will also work for errors that are not locally defined.
.Sh RETURN VALULES
On success,
.Fn au_bsm_to_errno
returns 0 and a converted error value; on failure, it returns -1 but does not
set
.Xr errno 2 .
.Pp
On success,
.Fn au_strerror
returns a pointer to an error string; on failure it will return
.Dv NULL .
.Sh SEE ALSO
.Xr au_to_return 3 ,
.Xr au_to_return32 3 ,
.Xr au_to_return64 3 ,
.Xr libbsm 3
.Sh HISTORY
.Fn au_bsm_to_errno
and
.Fn au_errno_to_bsm
were introduced in OpenBSM 1.1.
.Sh AUTHORS
These functions were implemented by
.An Robert Watson
under contract to Apple Inc.
.Pp
The Basic Security Module (BSM) interface to audit records and audit event
stream format were defined by Sun Microsystems.
.Sh BUGS
.Nm au_strerror
is unable to provide localized strings for errors not available in the local
operating system.