aboutsummaryrefslogtreecommitdiff
path: root/security/selinux/ss/conditional.c
diff options
context:
space:
mode:
Diffstat (limited to 'security/selinux/ss/conditional.c')
-rw-r--r--security/selinux/ss/conditional.c74
1 files changed, 33 insertions, 41 deletions
diff --git a/security/selinux/ss/conditional.c b/security/selinux/ss/conditional.c
index a996cf1d378..fb4efe4f4bc 100644
--- a/security/selinux/ss/conditional.c
+++ b/security/selinux/ss/conditional.c
@@ -1,9 +1,9 @@
/* Authors: Karl MacMillan <kmacmillan@tresys.com>
- * Frank Mayer <mayerf@tresys.com>
+ * Frank Mayer <mayerf@tresys.com>
*
* Copyright (C) 2003 - 2004 Tresys Technology, LLC
* This program is free software; you can redistribute it and/or modify
- * it under the terms of the GNU General Public License as published by
+ * it under the terms of the GNU General Public License as published by
* the Free Software Foundation, version 2.
*/
@@ -11,7 +11,6 @@
#include <linux/errno.h>
#include <linux/string.h>
#include <linux/spinlock.h>
-#include <asm/semaphore.h>
#include <linux/slab.h>
#include "security.h"
@@ -90,7 +89,7 @@ static int cond_evaluate_expr(struct policydb *p, struct cond_expr *expr)
int evaluate_cond_node(struct policydb *p, struct cond_node *node)
{
int new_state;
- struct cond_av_list* cur;
+ struct cond_av_list *cur;
new_state = cond_evaluate_expr(p, node->expr);
if (new_state != node->cur_state) {
@@ -99,20 +98,18 @@ int evaluate_cond_node(struct policydb *p, struct cond_node *node)
printk(KERN_ERR "SELinux: expression result was undefined - disabling all rules.\n");
/* turn the rules on or off */
for (cur = node->true_list; cur != NULL; cur = cur->next) {
- if (new_state <= 0) {
+ if (new_state <= 0)
cur->node->key.specified &= ~AVTAB_ENABLED;
- } else {
+ else
cur->node->key.specified |= AVTAB_ENABLED;
- }
}
for (cur = node->false_list; cur != NULL; cur = cur->next) {
/* -1 or 1 */
- if (new_state) {
+ if (new_state)
cur->node->key.specified &= ~AVTAB_ENABLED;
- } else {
+ else
cur->node->key.specified |= AVTAB_ENABLED;
- }
}
}
return 0;
@@ -174,8 +171,8 @@ void cond_policydb_destroy(struct policydb *p)
int cond_init_bool_indexes(struct policydb *p)
{
kfree(p->bool_val_to_struct);
- p->bool_val_to_struct = (struct cond_bool_datum**)
- kmalloc(p->p_bools.nprim * sizeof(struct cond_bool_datum*), GFP_KERNEL);
+ p->bool_val_to_struct = (struct cond_bool_datum **)
+ kmalloc(p->p_bools.nprim * sizeof(struct cond_bool_datum *), GFP_KERNEL);
if (!p->bool_val_to_struct)
return -1;
return 0;
@@ -200,7 +197,7 @@ int cond_index_bool(void *key, void *datum, void *datap)
return -EINVAL;
p->p_bool_val_to_name[booldatum->value - 1] = key;
- p->bool_val_to_struct[booldatum->value -1] = booldatum;
+ p->bool_val_to_struct[booldatum->value - 1] = booldatum;
return 0;
}
@@ -252,8 +249,7 @@ err:
return -1;
}
-struct cond_insertf_data
-{
+struct cond_insertf_data {
struct policydb *p;
struct cond_av_list *other;
struct cond_av_list *head;
@@ -276,7 +272,7 @@ static int cond_insertf(struct avtab *a, struct avtab_key *k, struct avtab_datum
*/
if (k->specified & AVTAB_TYPE) {
if (avtab_search(&p->te_avtab, k)) {
- printk("SELinux: type rule already exists outside of a conditional.");
+ printk(KERN_ERR "SELinux: type rule already exists outside of a conditional.\n");
goto err;
}
/*
@@ -291,7 +287,7 @@ static int cond_insertf(struct avtab *a, struct avtab_key *k, struct avtab_datum
node_ptr = avtab_search_node(&p->te_cond_avtab, k);
if (node_ptr) {
if (avtab_search_node_next(node_ptr, k->specified)) {
- printk("SELinux: too many conflicting type rules.");
+ printk(KERN_ERR "SELinux: too many conflicting type rules.\n");
goto err;
}
found = 0;
@@ -302,13 +298,13 @@ static int cond_insertf(struct avtab *a, struct avtab_key *k, struct avtab_datum
}
}
if (!found) {
- printk("SELinux: conflicting type rules.\n");
+ printk(KERN_ERR "SELinux: conflicting type rules.\n");
goto err;
}
}
} else {
if (avtab_search(&p->te_cond_avtab, k)) {
- printk("SELinux: conflicting type rules when adding type rule for true.\n");
+ printk(KERN_ERR "SELinux: conflicting type rules when adding type rule for true.\n");
goto err;
}
}
@@ -316,7 +312,7 @@ static int cond_insertf(struct avtab *a, struct avtab_key *k, struct avtab_datum
node_ptr = avtab_insert_nonunique(&p->te_cond_avtab, k, d);
if (!node_ptr) {
- printk("SELinux: could not insert rule.");
+ printk(KERN_ERR "SELinux: could not insert rule.\n");
goto err;
}
@@ -353,9 +349,8 @@ static int cond_read_av_list(struct policydb *p, void *fp, struct cond_av_list *
return -1;
len = le32_to_cpu(buf[0]);
- if (len == 0) {
+ if (len == 0)
return 0;
- }
data.p = p;
data.other = other;
@@ -376,12 +371,12 @@ static int cond_read_av_list(struct policydb *p, void *fp, struct cond_av_list *
static int expr_isvalid(struct policydb *p, struct cond_expr *expr)
{
if (expr->expr_type <= 0 || expr->expr_type > COND_LAST) {
- printk("SELinux: conditional expressions uses unknown operator.\n");
+ printk(KERN_ERR "SELinux: conditional expressions uses unknown operator.\n");
return 0;
}
if (expr->bool > p->p_bools.nprim) {
- printk("SELinux: conditional expressions uses unknown bool.\n");
+ printk(KERN_ERR "SELinux: conditional expressions uses unknown bool.\n");
return 0;
}
return 1;
@@ -408,15 +403,14 @@ static int cond_read_node(struct policydb *p, struct cond_node *node, void *fp)
/* expr */
len = le32_to_cpu(buf[0]);
- for (i = 0; i < len; i++ ) {
+ for (i = 0; i < len; i++) {
rc = next_entry(buf, fp, sizeof(u32) * 2);
if (rc < 0)
goto err;
expr = kzalloc(sizeof(struct cond_expr), GFP_KERNEL);
- if (!expr) {
+ if (!expr)
goto err;
- }
expr->expr_type = le32_to_cpu(buf[0]);
expr->bool = le32_to_cpu(buf[1]);
@@ -426,11 +420,10 @@ static int cond_read_node(struct policydb *p, struct cond_node *node, void *fp)
goto err;
}
- if (i == 0) {
+ if (i == 0)
node->expr = expr;
- } else {
+ else
last->next = expr;
- }
last = expr;
}
@@ -469,11 +462,10 @@ int cond_read_list(struct policydb *p, void *fp)
if (cond_read_node(p, node, fp) != 0)
goto err;
- if (i == 0) {
+ if (i == 0)
p->cond_list = node;
- } else {
+ else
last->next = node;
- }
last = node;
}
return 0;
@@ -490,24 +482,24 @@ void cond_compute_av(struct avtab *ctab, struct avtab_key *key, struct av_decisi
{
struct avtab_node *node;
- if(!ctab || !key || !avd)
+ if (!ctab || !key || !avd)
return;
- for(node = avtab_search_node(ctab, key); node != NULL;
+ for (node = avtab_search_node(ctab, key); node != NULL;
node = avtab_search_node_next(node, key->specified)) {
- if ( (u16) (AVTAB_ALLOWED|AVTAB_ENABLED) ==
- (node->key.specified & (AVTAB_ALLOWED|AVTAB_ENABLED)))
+ if ((u16)(AVTAB_ALLOWED|AVTAB_ENABLED) ==
+ (node->key.specified & (AVTAB_ALLOWED|AVTAB_ENABLED)))
avd->allowed |= node->datum.data;
- if ( (u16) (AVTAB_AUDITDENY|AVTAB_ENABLED) ==
- (node->key.specified & (AVTAB_AUDITDENY|AVTAB_ENABLED)))
+ if ((u16)(AVTAB_AUDITDENY|AVTAB_ENABLED) ==
+ (node->key.specified & (AVTAB_AUDITDENY|AVTAB_ENABLED)))
/* Since a '0' in an auditdeny mask represents a
* permission we do NOT want to audit (dontaudit), we use
* the '&' operand to ensure that all '0's in the mask
* are retained (much unlike the allow and auditallow cases).
*/
avd->auditdeny &= node->datum.data;
- if ( (u16) (AVTAB_AUDITALLOW|AVTAB_ENABLED) ==
- (node->key.specified & (AVTAB_AUDITALLOW|AVTAB_ENABLED)))
+ if ((u16)(AVTAB_AUDITALLOW|AVTAB_ENABLED) ==
+ (node->key.specified & (AVTAB_AUDITALLOW|AVTAB_ENABLED)))
avd->auditallow |= node->datum.data;
}
return;
generated by cgit v1.2.3 (git 2.25.1) at 2024-04-25 10:09:42 +0000