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FreeBSD 11.0 - man page for audit_submit (freebsd section 3)

AUDIT_SUBMIT(3) 					   BSD Library Functions Manual 					   AUDIT_SUBMIT(3)

audit_submit -- general purpose audit record submission
Basic Security Module Library (libbsm, -lbsm)
#include <bsm/libbsm.h> int audit_submit(short au_event, au_id_t auid, char status, int reterr, const char * restrict format, ...);
The audit_submit() function provides a generic programming interface for audit record submission. This audit record will contain a header, subject token, an optional text token, return token, and a trailer. The header will contain the event class specified by au_event. The sub- ject token will be generated based on auid. The return token is dependent on the status and reterr arguments; unlike the argument to au_to_return, reterr should be a local rather than BSM error number. Optionally, a text token will be created as a part of this record. Text token output is under the control of a format string that specifies how subsequent arguments (or arguments accessed via the variable- length argument facilities of stdarg(3)) are converted for output. If format is NULL, then no text token is created in the audit record. It should be noted that audit_submit() assumes that setaudit(2), or setaudit_addr(2) has already been called. As a direct result, the termi- nal ID for the subject will be retrieved from the kernel via getaudit(2), or getaudit_addr(2).
If successful, audit_submit will return zero. Otherwise a -1 is returned and the global variable errno is set to indicate the error.
#include <bsm/audit.h> #include <bsm/libbsm.h> #include <bsm/audit_uevents.h> #include <stdio.h> #include <stdarg.h> #include <errno.h> void audit_bad_su(char *from_login, char *to_login) { struct auditinfo_addr aia; struct auditinfo ai; au_id_t aid; int error; error = getaudit_addr(&aia, sizeof(aia)); if (error < 0 && errno == ENOSYS) { error = getaudit(&ai); if (error < 0) err(1, "getaudit"); aid = ai.ai_auid; } else if (error < 0) err(1, "getaudit_addr"); else aid = aia.ai_auid; error = audit_submit(AUE_su, aid, EPERM, 1, "bad su from %s to %s", from_login, to_login); if (error != 0) err(1, "audit_submit"); } Will generate the following audit record: header,94,1,su(1),0,Mon Apr 17 23:23:59 2006, + 271 msec subject,root,root,wheel,root,wheel,652,652,0, text,bad su from from csjp to root return,failure : Operation not permitted,1 trailer,94
auditon(2), getaudit(2), libbsm(3), stdarg(3)
The audit_submit() function first appeared in OpenBSM version 1.0. OpenBSM 1.0 was introduced in FreeBSD 7.0.
The audit_submit() function was written by Christian S.J. Peron <>.
January 18, 2008 BSD