PERFORCE change 91092 for review

[Robert Watson]

http://perforce.freebsd.org/chv.cgi?CH=91092

Change 91092 by rwatson at rwatson_peppercorn on 2006/02/04 18:51:55

	Audit logout.

Affected files ...

.. //depot/projects/trustedbsd/audit3/usr.bin/login/login.c#11 edit
.. //depot/projects/trustedbsd/audit3/usr.bin/login/login_audit.c#4 edit

Differences ...

==== //depot/projects/trustedbsd/audit3/usr.bin/login/login.c#11 (text+ko) ====

@@ -959,6 +959,7 @@
 {
 
 	pam_cleanup();
+	audit_logout();
 	(void)sleep(sec);
 	exit(eval);
 }

==== //depot/projects/trustedbsd/audit3/usr.bin/login/login_audit.c#4 (text+ko) ====

@@ -226,3 +226,57 @@
 		exit(1);
 	}
 }
+
+/*
+ * The following tokens are included in the audit record for a logout:
+ * header, subject, return.
+ */ 
+void
+audit_logout(void)
+{
+	token_t *tok;
+	int aufd;
+	au_mask_t aumask;
+	auditinfo_t auinfo;
+	uid_t uid = pwd->pw_uid;
+	gid_t gid = pwd->pw_gid;
+	pid_t pid = getpid();
+	long au_cond;
+
+	/* If we are not auditing, don't cut an audit record; just return. */
+ 	if (auditon(A_GETCOND, &au_cond, sizeof(long)) < 0) {
+		if (errno == ENOSYS)
+			return;
+		fprintf(stderr,
+		    "login: Could not determine audit condition\n");
+		exit(1);
+	}
+	if (au_cond == AUC_NOAUDIT)
+		return;
+
+	if ((aufd = au_open()) == -1) {
+		fprintf(stderr, "login: Audit Error: au_open() failed\n");
+		exit(1);
+	}
+
+	/* The subject that is created (euid, egid of the current process). */
+	if ((tok = au_to_subject32(uid, geteuid(), getegid(), 
+			uid, gid, pid, pid, &tid)) == NULL) {
+		fprintf(stderr, 
+		    "login: Audit Error: au_to_subject32() failed\n");
+		exit(1);
+	}
+	au_write(aufd, tok);
+
+	if ((tok = au_to_return32(0, 0)) == NULL) {
+		fprintf(stderr, 
+		    "login: Audit Error: au_to_return32() failed\n");
+		exit(1);
+	}
+	au_write(aufd, tok);
+
+	if (au_close(aufd, 1, AUE_logout) == -1) {
+		fprintf(stderr, "login: Audit Record was not committed.\n");
+		exit(1);
+	}
+}