were cherry picked up the upstream OpenBSD repository. At some point we
will look at doing another import, but the diffs are substantial and will
require some careful testing.
Differential Revision: https://reviews.freebsd.org/D25021
MFC after: 2 weeks
Submitted by: gbe
Reviewed by: myself, bcr
- Add a new "qsize" parameter in audit_control and the getacqsize(3) API to
query it, allowing to set the kernel's maximum audit queue length.
- Add support to push a mapping between audit event names and event numbers
into the kernel (where supported) using new A_GETEVENT and A_SETEVENT
auditon(2) operations.
- Add audit event identifiers for a number of new (and not-so-new) FreeBSD
system calls including those for asynchronous I/O, thread management, SCTP,
jails, multi-FIB support, and misc. POSIX interfaces such as
posix_fallocate(2) and posix_fadvise(2).
- On operating systems supporting Capsicum, auditreduce(1) and praudit(1) now
run sandboxed.
- Empty "flags" and "naflags" fields are now permitted in audit_control(5).
Many thanks to Christian Brueffer for producing the OpenBSM release and
importing/tagging it in the vendor branch. This release will allow improved
auditing of a range of new FreeBSD functionality, as well as non-traditional
events (e.g., fine-grained I/O auditing) not required by the Orange Book or
Common Criteria.
Obtained from: TrustedBSD Project
Sponsored by: DARPA, AFRL
MFC after: 3 weeks
OpenBSM history for imported revision below for reference.
MFC after: 2 weeks
Sponsored by: Apple, Inc.
Obtained from: TrustedBSD Project
OpenBSM 1.1
- Change auditon(2) parameters and data structures to be 32/64-bit architecture
independent. Add more information to man page about auditon(2) parameters.
- Add wrapper functions for auditon(2) to use legacy commands when the new
commands are not supported.
- Add default for 'expire-after' in audit_control to expire trail files when
the audit directory is more than 10 megabytes ('10M').
- Interface to convert between local and BSM fcntl(2) command values has been
added: au_bsm_to_fcntl_cmd(3) and au_fcntl_cmd_to_bsm(3), along with
definitions of constants in audit_fcntl.h.
- A bug, introduced in OpenBSM 1.1 alpha 4, in which AUT_RETURN32 tokens
generated by audit_submit(3) were improperly encoded has been fixed.
- Fix example in audit_submit(3) man page. Also, make it clear that we want
the audit ID as the argument.
- A new audit event class 'aa', for post-login authentication and
authorization events, has been added.
contrib/openbsm (svn merge) and src/sys/{bsm,security/audit} (manual
merge).
OpenBSM history for imported revision below for reference.
MFC after: 1 month
Sponsored by: Apple, Inc.
Obtained from: TrustedBSD Project
OpenBSM 1.1 beta 1
- The filesz parameter in audit_control(5) now accepts suffixes: 'B' for
Bytes, 'K' for Kilobytes, 'M' for Megabytes, and 'G' for Gigabytes.
For legacy support no suffix defaults to bytes.
- Audit trail log expiration support added. It is configured in
audit_control(5) with the expire-after parameter. If there is no
expire-after parameter in audit_control(5), the default, then the audit
trail files are not expired and removed. See audit_control(5) for
more information.
- Change defaults in audit_control: warn at 5% rather than 20% free for audit
partitions, rotate automatically at 2mb, and set the default policy to
cnt,argv rather than cnt so that execve(2) arguments are captured if
AUE_EXECVE events are audited. These may provide more usable defaults for
many users.
- Use au_domain_to_bsm(3) and au_socket_type_to_bsm(3) to convert
au_to_socket_ex(3) arguments to BSM format.
- Fix error encoding AUT_IPC_PERM tokens.
history since the last import:
OpenBSM 1.0 alpha 15
- Fix bug when processing in_addr_ex tokens.
- Restore the behavior of printing the string/text specified while
auditing arg32 tokens.
- Synchronized audit event list to Solaris, picking up the *at(2) system call
definitions, now required for FreeBSD and Linux. Added additional events
for *at(2) system calls not present in Solaris.
- Bugs in auditreduce(8) fixed allowing partial date strings to be used in
filtering events.
Approved by: re (hrs)
MFC after: 3 weeks
Obtained from: TrustedBSD Project
history notes since the last import:
OpenBSM 1.0 alpha 14
- Fix endian issues when processing IPv6 addresses for extended subject
and process tokens.
- gcc41 warnings clean.
- Teach audit_submit(3) about getaudit_addr(2).
- Add support for zonename tokens.
OpenBSM 1.0 alpha 13
- compat/clock_gettime.h now provides a compatibility implementation of
clock_gettime(), which fixes building on Mac OS X.
- Countless man page improvements, markup fixes, content fixs, etc.
- XML printing support via "praudit -x".
- audit.log.5 expanded to include additional BSM token types.
- Added encoding and decoding routines for process64_ex, process32_ex,
subject32_ex, header64, and attr64 tokens.
- Additional audit event identifiers for listen, mlockall/munlockall,
getpath, POSIX message queues, and mandatory access control.
Approved by: re (bmah)
MFC after: 3 weeks
Obtained from: TrustedBSD Project
history notes since the last import:
OpenBSM 1.0 alpha 12
- Correct bug in auditreduce which prevented the -c option from working
correctly when the user specifies to process successful or failed events.
The problem stemmed from not having access to the return token at the time
the initial preselection occurred, but now a second preselection process
occurs while processing the return token.
- getacfilesz(3) API added to read new audit_control(5) filesz setting,
which auditd(8) now sets the kernel audit trail rotation size to.
- auditreduce(1) now uses stdin if no file names are specified on the command
line; this was the documented behavior previously, but it was not
implemented. Be more specific in auditreduce(1)'s examples section about
what might be done with the output of auditreduce.
- Add audit_warn(5) closefile event so that administrators can hook
termination of an audit trail file. For example, this might be used to
compress the trail file after it is closed.
- auditreduce(1) now uses regular expressions for pathname matching. Users can
now supply one or more (comma delimited) regular expressions for searching
the pathnames. If one of the regular expressions is prefixed with a tilde
(~), and a path matches, it will be excluded from the search results.
MFC after: 3 days
Obtained from: TrustedBSD Project
notes since the last import:
OpenBSM 1.0 alpha 11
- Reclassify certain read/write operations as having no class rather than the
fr/fw class; our default classes audit intent (open) not operations (read,
write).
- Introduce AUE_SYSCTL_WRITE event so that BSD/Darwin systems can audit reads
and writes of sysctls as separate events. Add additional kernel
environment and jail events for FreeBSD.
- Break AUDIT_TRIGGER_OPEN_NEW into two events, AUDIT_TRIGGER_ROTATE_USER
(issued by the user audit(8) tool) and AUDIT_TRIGGER_ROTATE_KERNEL (issued
by the kernel audit implementation) so that they can be distinguished.
- Disable rate limiting of rotate requests; as the kernel doesn't retransmit
a dropped request, the log file will otherwise grow indefinitely if the
trigger is dropped.
- Improve auditd debugging output.
- Fix a number of threading related bugs in audit_control file reading
routines.
- Add APIs au_poltostr() and au_strtopol() to convert between text
representations of audit_control policy flags and the flags passed to
auditon(A_SETPOLICY) and retrieved from auditon(A_GETPOLICY).
- Add API getacpol() to return the 'policy:' entry from audit_control, an
extension to the Solaris file format to allow specification of policy
persistent flags.
- Update audump to print the audit_control policy field.
- Update auditd to read the audit_control policy field and set the kernel
policy to match it when configuring/reconfiguring. Remove the -s and -h
arguments as these policies are now set via the configuration file. If a
policy line is not found in the configuration file, continue with the
current default of setting AUDIT_CNT.
- Fix bugs in the parsing of large execve(2) arguments and environmental
variable tokens; increase maximum parsed argument and variable count.
- configure now detects strlcat(), used by policy-related functions.
- Reference token and record sample files added to test tree.
Obtained from: TrustedBSD Project
- Man page formatting, cross reference, mlinks, and accuracy improvements.
- auditd and tools now compile and run on FreeBSD/arm.
- auditd will now fchown() the trail file to the audit review group, if
defined at compile-time.
- Added AUE_SYSARCH for FreeBSD.
- Definition of AUE_SETFSGID fixed for Linux.
Many thanks to: brueffer, cognet
Obtained from: TrustedBSD Project
1.0 alpha 1, an implementation of the documented Sun Basic Security
Module (BSM) Audit API and file format, as well as local extensions to
support the Mac OS X and FreeBSD operating systems. Also included are
command line tools for audit trail reduction and conversion to text,
as well as documentation of the commands, file format, and APIs. This
distribution is the foundation for the TrustedBSD Audit implementation,
and is a pre-release.
This is the first in a series of commits to introduce support for
Common Criteria CAPP security event audit support.
This software has been made possible through the generous
contributions of Apple Computer, Inc., SPARTA, Inc., as well as
members of the TrustedBSD Project, including Wayne Salamon <wsalamon>
and Tom Rhodes <trhodes>. The original OpenBSM implementation was
created by McAfee Research under contract to Apple Computer, Inc., as
part of their CC CAPP security evaluation.
Many thanks to: wsalamon, trhodes
Obtained from: TrustedBSD Project
