- (dtucker) [audit-bsm.c configure.ac] bug #1968: enable workarounds for BSM

   audit breakage in Solaris 11.  Patch from Magnus Johansson.

3 files changed, 89 insertions, 3 deletions

diff --git a/ChangeLog b/ChangeLog
index 3f5630da..05749a6a 100644
--- a/ChangeLog
+++ b/ChangeLog
@@ -1,3 +1,7 @@
+20120224
+ - (dtucker) [audit-bsm.c configure.ac] bug #1968: enable workarounds for BSM
+   audit breakage in Solaris 11.  Patch from Magnus Johansson.
+
 20120215
  - (tim) [openbsd-compat/bsd-misc.h sshd.c] Fix conflicting return type for
    unsetenv due to rev 1.14 change to setenv.c. Cast unsetenv to void in sshd.c
diff --git a/audit-bsm.c b/audit-bsm.c
index f196d4f1..61355914 100644
--- a/audit-bsm.c
+++ b/audit-bsm.c
@@ -1,4 +1,4 @@
-/* $Id: audit-bsm.c,v 1.7 2011/01/17 10:15:29 dtucker Exp $ */
+/* $Id: audit-bsm.c,v 1.8 2012/02/23 23:40:43 dtucker Exp $ */
 
 /*
  * TODO
@@ -45,6 +45,10 @@
 #include <string.h>
 #include <unistd.h>
 
+#ifdef BROKEN_BSM_API
+#include <libscf.h>
+#endif
+
 #include "ssh.h"
 #include "log.h"
 #include "key.h"
@@ -114,6 +118,12 @@ extern int	aug_daemon_session(void);
 extern Authctxt *the_authctxt;
 static AuditInfoTermID ssh_bsm_tid;
 
+#ifdef BROKEN_BSM_API
+/* For some reason this constant is no longer defined
+   in Solaris 11. */
+#define BSM_TEXTBUFSZ 256
+#endif
+
 /* Below is the low-level BSM interface code */
 
 /*
@@ -161,6 +171,65 @@ aug_get_machine(char *host, u_int32_t *addr, u_int32_t *type)
 }
 #endif
 
+#ifdef BROKEN_BSM_API
+/*
+  In Solaris 11 the audit daemon has been moved to SMF. In the process
+  they simply dropped getacna() from the API, since it read from a now
+  non-existent config file. This function re-implements getacna() to
+  read from the SMF repository instead.
+ */
+int
+getacna(char *auditstring, int len)
+{
+	scf_handle_t *handle = NULL;
+	scf_property_t *property = NULL;
+	scf_value_t *value = NULL;
+	int ret = 0;
+
+	handle = scf_handle_create(SCF_VERSION);
+	if (handle == NULL) 
+	        return -2; /* The man page for getacna on Solaris 10 states
+			      we should return -2 in case of error and set
+			      errno to indicate the error. We don't bother
+			      with errno here, though, since the only use
+			      of this function below doesn't check for errors
+			      anyway. 
+			   */
+
+	ret = scf_handle_bind(handle);
+	if (ret == -1) 
+	        return -2;
+
+	property = scf_property_create(handle);
+	if (property == NULL) 
+	        return -2;
+
+	ret = scf_handle_decode_fmri(handle, 
+	     "svc:/system/auditd:default/:properties/preselection/naflags",
+				     NULL, NULL, NULL, NULL, property, 0);
+	if (ret == -1) 
+	        return -2;
+
+	value = scf_value_create(handle);
+	if (value == NULL) 
+	        return -2;
+
+	ret = scf_property_get_value(property, value);
+	if (ret == -1) 
+	        return -2;
+
+	ret = scf_value_get_astring(value, auditstring, len);
+	if (ret == -1) 
+	        return -2;
+
+	scf_value_destroy(value);
+	scf_property_destroy(property);
+	scf_handle_destroy(handle);
+
+	return 0;
+}
+#endif
+
 /*
  * Check if the specified event is selected (enabled) for auditing.
  * Returns 1 if the event is selected, 0 if not and -1 on failure.
@@ -213,7 +282,15 @@ bsm_audit_record(int typ, char *string, au_event_t event_no)
 	(void) au_write(ad, au_to_text(string));
 	(void) au_write(ad, AUToReturnFunc(typ, rc));
 
+#ifdef BROKEN_BSM_API
+	/* The last argument is the event modifier flags. For
+	   some seemingly undocumented reason it was added in
+	   Solaris 11. */
+	rc = au_close(ad, AU_TO_WRITE, event_no, 0);
+#else
 	rc = au_close(ad, AU_TO_WRITE, event_no);
+#endif
+
 	if (rc < 0)
 		error("BSM audit: %s failed to write \"%s\" record: %s",
 		    __func__, string, strerror(errno));
diff --git a/configure.ac b/configure.ac
index 54fc7d0c..acf529b0 100644
--- a/configure.ac
+++ b/configure.ac
@@ -1,4 +1,4 @@
-# $Id: configure.ac,v 1.486 2012/01/17 03:03:37 dtucker Exp $
+# $Id: configure.ac,v 1.487 2012/02/23 23:40:43 dtucker Exp $
 #
 # Copyright (c) 1999-2004 Damien Miller
 #
@@ -15,7 +15,7 @@
 # OR IN CONNECTION WITH THE USE OR PERFORMANCE OF THIS SOFTWARE.
 
 AC_INIT([OpenSSH], [Portable], [openssh-unix-dev@mindrot.org])
-AC_REVISION($Revision: 1.486 $)
+AC_REVISION($Revision: 1.487 $)
 AC_CONFIG_SRCDIR([ssh.c])
 AC_LANG([C])
 
@@ -1434,6 +1434,11 @@ AC_ARG_WITH([audit],
 		# These are optional
 		AC_CHECK_FUNCS([getaudit_addr aug_get_machine])
 		AC_DEFINE([USE_BSM_AUDIT], [1], [Use BSM audit module])
+		if test "$sol2ver" -eq 11; then
+		   	SSHDLIBS="$SSHDLIBS -lscf"
+                   	AC_DEFINE([BROKEN_BSM_API], [1], 
+		        	  [The system has incomplete BSM API])
+		fi
 		;;
 	  linux)
 		AC_MSG_RESULT([linux])