NEWS revision 184902
1184902SrwatsonOpenBSM Version History 2184902Srwatson 3184902SrwatsonOpenBSM 1.1 alpha 2 4184902Srwatson 5184902Srwatson- Include files in OpenBSM are now broken out into two parts: library builds 6184902Srwatson required solely for user space, and system includes, which may also be 7184902Srwatson required for use in the kernels of systems integrating OpenBSM. Submitted 8184902Srwatson by Stacey Son. 9184902Srwatson- Configure option --with-native-includes allows forcing the use of native 10184902Srwatson include for system includes, rather than the versions bundled with OpenBSM. 11184902Srwatson This is intended specifically for platforms that ship OpenBSM, have adapted 12184902Srwatson versions of the system includes in a kernel source tree, and will use the 13184902Srwatson OpenBSM build infrastructure with an unmodified OpenBSM distribution, 14184902Srwatson allowing the customized system includes to be used with the OpenBSM build. 15184902Srwatson Submitted by Stacey Son. 16184902Srwatson- Various strcpy()'s/strcat()'s have been changed to strlcpy()'s/strlcat()'s 17184902Srwatson or asprintf(). Added compat/strlcpy.h for Linux. 18184902Srwatson- Remove compatibility defines for old Darwin token constant names; now only 19184902Srwatson BSM token names are provided and used. 20184902Srwatson- Add support for extended header tokens, which contain space for information 21184902Srwatson on the host generating the record. 22184902Srwatson- Add support for setting extended host information in the kernel, which is 23184902Srwatson used for setting host information in extended header tokens. The 24184902Srwatson audit_control file now supports a "host" parameter which can be used by 25184902Srwatson auditd to set the information; if not present, the kernel parameters won't 26184902Srwatson be set and auditd uses unextended headers for records that it generates. 27184902Srwatson 28184902SrwatsonOpenBSM 1.1 alpha 1 29184902Srwatson 30184902Srwatson- Add option to auditreduce(1) which allows users to invert sense of 31184902Srwatson matching, such that BSM records that do not match, are selected. 32184902Srwatson- Fix bug in audit_write() where we commit an incomplete record in the 33184902Srwatson event there is an error writing the subject token. This was submitted 34184902Srwatson by Diego Giagio. 35184902Srwatson- Build support for Mac OS X 10.5.1 submitted by Eric Hall. 36184902Srwatson- Fix a bug which resulted in host XML attributes not being printed 37184902Srwatson while processing extended header tokens. This patch was submitted by 38184902Srwatson Martin Voros. 39184902Srwatson- Constification of function arguments so that const strings can be passed 40184902Srwatson as arguments to tokens. This patch was submitted by Xin LI. 41184902Srwatson- Modify the -m option so users can select more then one audit event. 42184902Srwatson- For Mac OS X, added Mach IPC support for audit trigger messages. 43184902Srwatson- Fixed a bug in getacna() which resulted in a locking problem on Mac OS X. 44184902Srwatson- Added LOG_PERROR flag to openlog when -d option is used with auditd. 45184902Srwatson- AUE events added for Mac OS X Leopard system calls. 46184902Srwatson 47184902SrwatsonOpenBSM 1.0 48184902Srwatson 49184902Srwatson- Fix bug in auditreduce(1) which resulted in a memory fault/crash when 50184902Srwatson the user specified an event name with -m. 51184902Srwatson- Remove AU_.* hard-coded audit class constants, as audit classes are now 52184902Srwatson entirely dynamically configured using /etc/security/audit_class. 53184902Srwatson 54184902SrwatsonOpenBSM 1.0 alpha 15 55184902Srwatson 56184902Srwatson- Fix bug when processing in_addr_ex tokens. 57184902Srwatson- Restore the behavior of printing the string/text specified while 58184902Srwatson auditing arg32 tokens. 59184902Srwatson- Synchronized audit event list to Solaris, picking up the *at(2) system call 60184902Srwatson definitions, now required for FreeBSD and Linux. Added additional events 61184902Srwatson for *at(2) system calls not present in Solaris. 62184902Srwatson- Bugs in auditreduce(1) fixed allowing partial date strings to be used in 63184902Srwatson filtering events. 64184902Srwatson 65184902SrwatsonOpenBSM 1.0 alpha 14 66184902Srwatson 67184902Srwatson- Fix endian issues when processing IPv6 addresses for extended subject 68184902Srwatson and process tokens. 69184902Srwatson- gcc41 warnings clean. 70184902Srwatson- Teach audit_submit(3) about getaudit_addr(2). 71184902Srwatson- Add support for zonename tokens. 72184902Srwatson 73184902SrwatsonOpenBSM 1.0 alpha 13 74184902Srwatson 75184902Srwatson- compat/clock_gettime.h now provides a compatibility implementation of 76184902Srwatson clock_gettime(), which fixes building on Mac OS X. 77184902Srwatson- Countless man page improvements, markup fixes, content fixs, etc. 78184902Srwatson- XML printing support via "praudit -x". 79184902Srwatson- audit.log.5 expanded to include additional BSM token types. 80184902Srwatson- Added encoding and decoding routines for process64_ex, process32_ex, 81184902Srwatson subject32_ex, header64, and attr64 tokens. 82184902Srwatson- Additional audit event identifiers for listen, mlockall/munlockall, 83184902Srwatson getpath, POSIX message queues, and mandatory access control. 84184902Srwatson 85184902SrwatsonOpenBSM 1.0 alpha 12 86184902Srwatson 87184902Srwatson- Correct bug in auditreduce which prevented the -c option from working 88184902Srwatson correctly when the user specifies to process successful or failed events. 89184902Srwatson The problem stemmed from not having access to the return token at the time 90184902Srwatson the initial preselection occurred, but now a second preselection process 91184902Srwatson occurs while processing the return token. 92184902Srwatson- getacfilesz(3) API added to read new audit_control(5) filesz setting, 93184902Srwatson which auditd(8) now sets the kernel audit trail rotation size to. 94184902Srwatson- auditreduce(1) now uses stdin if no file names are specified on the command 95184902Srwatson line; this was the documented behavior previously, but it was not 96184902Srwatson implemented. Be more specific in auditreduce(1)'s examples section about 97184902Srwatson what might be done with the output of auditreduce. 98184902Srwatson- Add audit_warn(5) closefile event so that administrators can hook 99184902Srwatson termination of an audit trail file. For example, this might be used to 100184902Srwatson compress the trail file after it is closed. 101184902Srwatson- auditreduce(1) now uses regular expressions for pathname matching. Users can 102184902Srwatson now supply one or more (comma delimited) regular expressions for searching 103184902Srwatson the pathnames. If one of the regular expressions is prefixed with a tilde 104184902Srwatson (~), and a path matches, it will be excluded from the search results. 105184902Srwatson 106184902SrwatsonOpenBSM 1.0 alpha 11 107184902Srwatson 108184902Srwatson- Reclassify certain read/write operations as having no class rather than the 109184902Srwatson fr/fw class; our default classes audit intent (open) not operations (read, 110184902Srwatson write). 111184902Srwatson- Introduce AUE_SYSCTL_WRITE event so that BSD/Darwin systems can audit reads 112184902Srwatson and writes of sysctls as separate events. Add additional kernel 113184902Srwatson environment and jail events for FreeBSD. 114184902Srwatson- Break AUDIT_TRIGGER_OPEN_NEW into two events, AUDIT_TRIGGER_ROTATE_USER 115184902Srwatson (issued by the user audit(8) tool) and AUDIT_TRIGGER_ROTATE_KERNEL (issued 116184902Srwatson by the kernel audit implementation) so that they can be distinguished. 117184902Srwatson- Disable rate limiting of rotate requests; as the kernel doesn't retransmit 118184902Srwatson a dropped request, the log file will otherwise grow indefinitely if the 119184902Srwatson trigger is dropped. 120184902Srwatson- Improve auditd debugging output. 121184902Srwatson- Fix a number of threading related bugs in audit_control file reading 122184902Srwatson routines. 123184902Srwatson- Add APIs au_poltostr() and au_strtopol() to convert between text 124184902Srwatson representations of audit_control policy flags and the flags passed to 125184902Srwatson auditon(A_SETPOLICY) and retrieved from auditon(A_GETPOLICY). 126184902Srwatson- Add API getacpol() to return the 'policy:' entry from audit_control, an 127184902Srwatson extension to the Solaris file format to allow specification of policy 128184902Srwatson persistent flags. 129184902Srwatson- Update audump to print the audit_control policy field. 130184902Srwatson- Update auditd to read the audit_control policy field and set the kernel 131184902Srwatson policy to match it when configuring/reconfiguring. Remove the -s and -h 132184902Srwatson arguments as these policies are now set via the configuration file. If a 133184902Srwatson policy line is not found in the configuration file, continue with the 134184902Srwatson current default of setting AUDIT_CNT. 135184902Srwatson- Fix bugs in the parsing of large execve(2) arguments and environmental 136184902Srwatson variable tokens; increase maximum parsed argument and variable count. 137184902Srwatson- configure now detects strlcat(), used by policy-related functions. 138184902Srwatson- Reference token and record sample files added to test tree. 139184902Srwatson 140184902SrwatsonOpenBSM 1.0 alpha 10 141184902Srwatson 142184902Srwatson- auditd now generates complete audit records for its events, as required for 143184902Srwatson application-submitted audit records in the FreeBSD kernel audit 144184902Srwatson implementation. 145184902Srwatson 146184902SrwatsonOpenBSM 1.0 alpha 9 147184902Srwatson 148184902Srwatson- Rename many OpenBSM-specific constants and API elements containing the 149184902Srwatson strings "BSM" and "bsm" to "AUDIT" and "audit", observing that this is true 150184902Srwatson for almost all existing constants and APIs. 151184902Srwatson- Instead of passing a per-instance cookie directly into all audit filter 152184902Srwatson APIs, pass in the audit filter daemon state pointer, which is then used by 153184902Srwatson the module using an audit_filter_{get,set}cookie() API. This will allow 154184902Srwatson future service APIs provided by the filter daemon to maintain their own 155184902Srwatson state -- for example, per-module preselection state. 156184902Srwatson 157184902SrwatsonOpenBSM 1.0 alpha 8 158184902Srwatson 159184902Srwatson- Correct typo in definition of AUR_INT. 160184902Srwatson- Adopt OpenSolaris constant values for AUDIT_* configuration flags. 161184902Srwatson- Arguments to au_to_exec_args() and au_to_exec_env() no longer const. 162184902Srwatson- Add kernel versions of au_to_exec_args() and au_to_exec_env(). 163184902Srwatson- Fix exec argument type that is printed for env strings from 'arg' to 'env'. 164184902Srwatson- New OpenBSM token version number assigned, constants added for other 165184902Srwatson commonly seen version numbers. 166184902Srwatson- OpenBSM-specific events assigned numbers in the 43xxx range to avoid future 167184902Srwatson collisions with Solaris. Darwin events renamed to AUE_DARWIN_foo, as they 168184902Srwatson are now deprecated numberings. 169184902Srwatson- autoconf now detects clock_gettime(), which is not available on Darwin. 170184902Srwatson- praudit output fixes relating to arg32 and arg64 tokens. 171184902Srwatson- Maximum record size updated to 64k-1 to match Solaris record size limit. 172184902Srwatson- Various style and comment cleanups in include files. 173184902Srwatson 174184902SrwatsonOpenBSM 1.0 alpha 7 175184902Srwatson 176184902Srwatson- Adopted Solaris-compatible format for subject32_ex and subject64_ex 177184902Srwatson tokens, which previously did not correctly implement variable length 178184902Srwatson address storage. 179184902Srwatson- Prefer inttypes.h to stdint.h; enhance queue.h detection to test for 180184902Srwatson TAILQ_FOREACH_SAFE(), which is present in recent BSD queue.h's, but not 181184902Srwatson older ones. OpenBSM now builds on some FreeBSD 4.x versions. 182184902Srwatson- New event types for extended attributes, ACLs, and scheduling. 183184902Srwatson 184184902SrwatsonOpenBSM 1.0 alpha 6 185184902Srwatson 186184902Srwatson- Use AU_TO_WRITE and AU_NO_TO_WRITE for the 'keep' argument to au_close(); 187184902Srwatson previously we used hard-coded 0 and 1 values. 188184902Srwatson- Add man page for au_open(), au_write(), au_close(), and 189184902Srwatson au_close_buffer(). 190184902Srwatson- Support a more complete range of data types for the arbitrary data token: 191184902Srwatson add AUR_CHAR (alias to AUR_BYTE), remove AUR_LONG, add AUR_INT32 (alias 192184902Srwatson to AUR_INT), add AUR_INT64. 193184902Srwatson- Add au_close_token(), which allows writing a single token_t to a memory 194184902Srwatson buffer. Not likely to be used much by applications, but useful for 195184902Srwatson writing test tools. 196184902Srwatson- Modify au_to_file() so that it accepts a timeval in user space, not just 197184902Srwatson kernel -- this is not a Solaris BSM API so can be modified without 198184902Srwatson causing compatibility issues. 199184902Srwatson- Define a new API, au_to_header32_tm(), which adds a struct timeval 200184902Srwatson argument to the ordinary au_to_header32(), which is now implemented by 201184902Srwatson wrapping au_to_header32_tm() and calling gettimeofday(). #ifndef KERNEL 202184902Srwatson the APIs that invoke gettimeofday(), rather than having a variable 203184902Srwatson definition. Don't try to retrieve time zone information using 204184902Srwatson gettimeofday(), as it's not needed, and introduces possible failure 205184902Srwatson modes. 206184902Srwatson- Don't perform byte order transformations on the addr/machine fields of 207184902Srwatson the terminal ID that appears in the process32/subject32 tokens. These 208184902Srwatson are assumed to be IP addresses, and as such, to be in network byte 209184902Srwatson order. 210184902Srwatson- Universally, APIs now assume that IP addresses and ports are provided 211184902Srwatson in network byte order. APIs now generally provide these types in 212184902Srwatson network byte order when decoding. 213184902Srwatson- Beginnings of an OpenBSM test framework can now be found in openbsm/test. 214184902Srwatson This code is not built or installed by default. 215184902Srwatson- auditd now assigns more appropriate syslog levels to its debugging and 216184902Srwatson error information. 217184902Srwatson- Support for audit filters introduced: audit filters are dynamically 218184902Srwatson loaded shared objects that run in the context of a new daemon, 219184902Srwatson auditfilterd. The daemon reads from an audit pipe and feeds both BSM and 220184902Srwatson parsed versions of records to shared objects using a module API. This 221184902Srwatson will provide a framework for the writing of intrusion detection services. 222184902Srwatson- New utility API, audit_submit(), added to capture common elements of audit 223184902Srwatson record submission for many applications. 224184902Srwatson 225184902SrwatsonOpenBSM 1.0 alpha 5 226184902Srwatson 227184902Srwatson- Update install notes to indicate /etc files are to be installed manually. 228184902Srwatson- On systems without LOG_SECURITY, use LOG_AUTH. 229184902Srwatson- Convert to autoconf/automake in order to move to a more portable (not 230184902Srwatson BSD-specific) build infrastructure, and more easy conditional building of 231184902Srwatson components. Currently, the primary feature loss is that automake does 232184902Srwatson not have native support for manual symlinks. This will be addressed in a 233184902Srwatson future OpenBSM release. 234184902Srwatson- Add compat/queue.h, to be used on systems dated BSD queue macro libraries 235184902Srwatson (as found on Linux). 236184902Srwatson- Rename CHANGELOG to HISTORY, as our change log doesn't follow some of the 237184902Srwatson existing conventions for a CHANGELOG. 238184902Srwatson- Some private data structures moved from audit.h to audit_internal.h to 239184902Srwatson prevent inappropriate use by applications and name space pollution. 240184902Srwatson- Improved detection and use of endian macros using autoconf. 241184902Srwatson- Avoid non-portable use of struct in6_addr, which is largely opaque. 242184902Srwatson- Avoid leaking BSD kernel socket related token code to user space in 243184902Srwatson bsm_token.c. 244184902Srwatson- Teach System V IPC calls to look for Linux naming variations for certain 245184902Srwatson struct ipc_perm fields. 246184902Srwatson- Test for audit system calls, and if not present, don't build 247184902Srwatson bsm_wrappers.c, bsm_notify.c, audit(8), and auditd(8), which rely on 248184902Srwatson those system calls. 249184902Srwatson- au_close() is not implemented on systems that don't have audit system 250184902Srwatson calls, but au_close_buffer() is. 251184902Srwatson- Work around missing BSDisms in bsm_wrapper.c. 252184902Srwatson- Fix nested includes so including libbsm.h in an application on Linux 253184902Srwatson picks up the necessary definitions. 254184902Srwatson 255184902SrwatsonOpenBSM 1.0 alpha 4 256184902Srwatson 257184902Srwatson- Remove "audit" user example from audit_user, as it's not present on most 258184902Srwatson systems. 259184902Srwatson- Add cannot_audit() function non-Darwin systems that wraps auditon(); 260184902Srwatson required by OpenSSH BSM support. Convert Darwin cannot_audit() into a 261184902Srwatson function rather than a macro. 262184902Srwatson- Library build fixed on Darwin following include file tweaks. The native 263184902Srwatson Darwin sys/audit.h conflicts with bsm/audit.h due to duplicate types, so 264184902Srwatson for now we force bsm_wrappers.c to not perform a nested include of 265184902Srwatson sys/audit.h. 266184902Srwatson 267184902SrwatsonOpenBSM 1.0 alpha 3 268184902Srwatson 269184902Srwatson- Man page formatting, cross reference, mlinks, and accuracy improvements. 270184902Srwatson- auditd and tools now compile and run on FreeBSD/arm. 271184902Srwatson- auditd will now fchown() the trail file to the audit review group, if 272184902Srwatson defined at compile-time. 273184902Srwatson- Added AUE_SYSARCH for FreeBSD. 274184902Srwatson- Definition of AUE_SETFSGID fixed for Linux. 275184902Srwatson 276184902SrwatsonOpenBSM 1.0 alpha 2 277184902Srwatson 278184902Srwatson- Man page formatting improvements. 279184902Srwatson- A number of new audit event identifiers for FreeBSD, Linux, and POSIX.1b 280184902Srwatson events. 281184902Srwatson- Remove 'tfm' class, unused in OpenBSM. 282184902Srwatson 283184902SrwatsonOpenBSM 1.0 alpha 1 284184902Srwatson 285184902Srwatson- Import of Darwin74 BSM drop 286184902Srwatson- Use 'syslog' for audit log warnings, rather than echoing to a file in 287184902Srwatson audit_warn. 288184902Srwatson- Compile using BSD make infrastructure. 289184902Srwatson- Integrate bsm/ include files from Darwin74 XNU drop into OpenBSM. 290184902Srwatson- Narrow set of symbols and defines that are exposed in user space: don't 291184902Srwatson compile in code relying on kernel-only types such as 'struct socket'. 292184902Srwatson- Add README, including basic build documentation. 293184902Srwatson- Compilation of Apple-specific notify and Machroutines now #ifdef __APPLE__. 294184902Srwatson- Staticize libbsm global variables to avoid leakage into applications. 295184902Srwatson- Add free_au_user_ent() so that au_user_ent's don't have to be leaked. 296184902Srwatson- Clean up bogus nul-termination checks in libbsm. 297184902Srwatson- Add libbsm API man pages: au_class.3 au_control.3 au_event.3 298184902Srwatson au_free_token.3 au_io.3 au_mask.3 au_token.3 au_user.3 libbsm.3. 299184902Srwatson- Add man pages for BSM system calls: audit.2 auditctl.2 auditon.2 getaudit.2 300184902Srwatson getauid.2 setaudit.2 setauid.2 301184902Srwatson- Modify various libbsm interfaces to more consistently return 'errno' values 302184902Srwatson on failure. 303184902Srwatson- Break out au_close() into constituent parts, allowing records to be written 304184902Srwatson to memory as well as files. 305184902Srwatson- Prefix various defines with 'BSM_' to reduce name space pollution. 306184902Srwatson- Added audit_internal.h, which can be used by a kernel audit implementation 307184902Srwatson wanting to rely on libbsm components. 308184902Srwatson- Build with warnings, and eliminate warnings. 309184902Srwatson- Make libbsm endian-independent, storing and reading BSM are big endian 310184902Srwatson (network byte order) rather than native byte order. More consistently 311184902Srwatson print IP addresses using the IP address print routine. These changes 312184902Srwatson make use of sys/endian.h from *BSD; since this isn't present on Darwin, 313184902Srwatson add it to OpenBSM as compat/endian.h, which is used only on Darwin. 314184902Srwatson- Import of Darwin80 BSM drop, including 64-bit file IDs, better 315184902Srwatson documentation of private APIs, and bug fixes. 316184902Srwatson- White space cleanup. 317184902Srwatson- Add audit.log.5, a first cut at a man page documenting the BSM file format. 318184902Srwatson- Teach au_read_rec() to recognize stand-alone file tokens, which are present 319184902Srwatson at the beginning and end of Solaris audit trails. Technically, these 320184902Srwatson appear to violate the high level BSM spec, which suggests that all tokens 321184902Srwatson are present in records, but need to be supported. 322184902Srwatson- Implement HEADER64, ATTR64, SUBJECT64 token types, which make it possible 323184902Srwatson to run praudit(1) on basic Solaris BSM streams. 324184902Srwatson- Switched to Solaris spelling of token names; Darwin spellings are now 325184902Srwatson deprecated and will be removed in a future version of OpenBSM. 326184902Srwatson- Adopt Solaris model for representing IPv4 and IPv6 addresses. 327184902Srwatson- Prefer C99 types. 328184902Srwatson- Attempt to universally adopt the BSD style(9) coding style for 329184902Srwatson consistency. 330184902Srwatson- auditreduce(1) now has a usage message. 331184902Srwatson- Update support for auditctl(2) system call to support FreeBSD. 332184902Srwatson- Add support for /dev/audit as the trigger source on FreeBSD. 333184902Srwatson- Add additional event types for Darwin, FreeBSD, and Solaris. Annotate 334184902Srwatson conflicts (there are a few, unfortunately). Correct spellings, comment, 335184902Srwatson sort, etc. These include {get,set}res[ug]id(), sendfile(), lchflags(), 336184902Srwatson eaccess(), kqueue(), kevent(), poll(), lchmod(). 337184902Srwatson- Relicensed under a BSD license, many thanks to Apple, Inc! 338184902Srwatson- Many bug fixes, cleanups, thread safety in the class, control, event, 339184902Srwatson and user system audit databases. Annotate some persisting atomicity 340184902Srwatson bugs associated with the API and implementation. 341184902Srwatson- Add audump test tool. 342184902Srwatson- Adopt OpenSolaris BSM API memory semantics: caller allocates memory, 343184902Srwatson or static memory is returned for non-_r() versions of API calls. 344184902Srwatson _free() calls dropped as a result, and source code compatibility with 345184902Srwatson OpenSolaris improved significantly. 346184902Srwatson- Annotate BSM events with origin OS and compatibility information. 347184902Srwatson- auditd(8), audit(8) added to the OpenBSM distribution. auditd extended 348184902Srwatson to support reloading of kernel event table. 349184902Srwatson- Allow comments in /etc/security configuration files. 350184902Srwatson 351184902Srwatson$P4: //depot/projects/trustedbsd/openbsm/NEWS#9 $ 352