1 files changed, 222 insertions, 0 deletions
diff --git a/framework/src/audit/src/ausearch-avc.c b/framework/src/audit/src/ausearch-avc.c
new file mode 100644
index 00000000..2d3b3199
--- /dev/null
+++ b/framework/src/audit/src/ausearch-avc.c
@@ -0,0 +1,222 @@
+/*
+* ausearch-avc.c - Minimal linked list library for avcs
+* Copyright (c) 2006,2008,2014 Red Hat Inc., Durham, North Carolina.
+* All Rights Reserved. 
+*
+* This software may be freely redistributed and/or modified under the
+* terms of the GNU General Public License as published by the Free
+* Software Foundation; either version 2, or (at your option) any
+* later version.
+*
+* This program is distributed in the hope that it will be useful,
+* but WITHOUT ANY WARRANTY; without even the implied warranty of
+* MERCHANTABILITY or FITNESS FOR A PARTICULAR PURPOSE.  See the
+* GNU General Public License for more details.
+*
+* You should have received a copy of the GNU General Public License
+* along with this program; see the file COPYING. If not, write to the
+* Free Software Foundation, Inc., 675 Mass Ave, Cambridge, MA 02139, USA.
+*
+* Authors:
+*   Steve Grubb <sgrubb@redhat.com>
+*/
+
+#include "config.h"
+#include <stdlib.h>
+#include <string.h>
+#include "ausearch-avc.h"
+
+
+void alist_create(alist *l)
+{
+	l->head = NULL;
+	l->cur = NULL;
+	l->cnt = 0;
+}
+
+anode *alist_next(alist *l)
+{
+	if (l->cur == NULL)
+		return NULL;
+	l->cur = l->cur->next;
+	return l->cur;
+}
+
+static void alist_last(alist *l)
+{
+	register anode* cur;
+
+	if (l->head == NULL)
+		return;
+
+	// Start with cur in hopes that we don't start at beginning
+	if (l->cur)
+		cur = l->cur;
+	else
+		cur = l->head;
+
+	// Loop until no next value
+	while (cur->next)
+		cur = cur->next;
+	l->cur = cur;
+}
+
+void alist_append(alist *l, anode *node)
+{
+	anode* newnode;
+
+	newnode = malloc(sizeof(anode));
+
+	if (node->scontext)
+		newnode->scontext = node->scontext;
+	else
+		newnode->scontext = NULL;
+
+	if (node->tcontext)
+		newnode->tcontext = node->tcontext;
+	else
+		newnode->tcontext = NULL;
+
+	newnode->avc_result = node->avc_result;
+
+	if (node->avc_perm)
+		newnode->avc_perm = node->avc_perm;
+	else
+		newnode->avc_perm = NULL;
+
+	if (node->avc_class)
+		newnode->avc_class = node->avc_class;
+	else
+		newnode->avc_class = NULL;
+
+	newnode->next = NULL;
+
+	// Make sure cursor is at the end
+	alist_last(l);
+
+	// if we are at top, fix this up
+	if (l->head == NULL)
+		l->head = newnode;
+	else	// Otherwise add pointer to newnode
+		l->cur->next = newnode;
+
+	// make newnode current
+	l->cur = newnode;
+	l->cnt++;
+}
+
+int alist_find_subj(alist *l)
+{
+        register anode* window = l->head;
+
+	while (window) {
+		if (window->scontext) {
+			l->cur = window;
+			return 1;
+		}
+		else
+			window = window->next;
+	}
+	return 0;
+}
+
+anode *alist_next_subj(alist *l)
+{
+	if (l->cur == NULL)
+		return NULL;
+	while (l->cur->next) {
+		l->cur=l->cur->next;
+		if (l->cur->scontext)
+			return l->cur;
+	}
+	return NULL;
+}
+
+int alist_find_obj(alist *l)
+{
+        register anode* window = l->head;
+
+	while (window) {
+		if (window->tcontext) {
+			l->cur = window;
+			return 1;
+		}
+		else
+			window = window->next;
+	}
+	return 0;
+}
+
+anode *alist_next_obj(alist *l)
+{
+	if (l->cur == NULL)
+		return NULL;
+	while (l->cur->next) {
+		l->cur=l->cur->next;
+		if (l->cur->tcontext)
+			return l->cur;
+	}
+	return NULL;
+}
+
+int alist_find_avc(alist *l)
+{
+        register anode* window = l->head;
+
+	while (window) {
+		if (window->avc_result != AVC_UNSET) {
+			l->cur = window;
+			return 1;
+		}
+		else
+			window = window->next;
+	}
+	return 0;
+}
+
+anode *alist_next_avc(alist *l)
+{
+	if (l->cur == NULL)
+		return NULL;
+	while (l->cur->next) {
+		l->cur=l->cur->next;
+		if (l->cur->avc_result != AVC_UNSET)
+			return l->cur;
+	}
+	return NULL;
+}
+
+void alist_clear(alist* l)
+{
+	anode* nextnode;
+	register anode* current;
+
+	current = l->head;
+	while (current) {
+		nextnode=current->next;
+		anode_clear(current);
+		free(current);
+		current=nextnode;
+	}
+	l->head = NULL;
+	l->cur = NULL;
+	l->cnt = 0;
+}
+
+void anode_init(anode *an)
+{
+	an->scontext = NULL;
+	an->tcontext = NULL;
+	an->avc_result = AVC_UNSET;
+	an->avc_perm = NULL;
+	an->avc_class = NULL;
+}
+
+void anode_clear(anode *an)
+{
+	free(an->scontext);
+	free(an->tcontext);
+	free(an->avc_perm);
+	free(an->avc_class);
+}
+