#include <linux/sched.h>
#include <linux/slab.h>
#include <linux/security.h>
+#include <net/net_namespace.h>
+#include <net/sock.h>
#include "audit.h"
/*
{
struct audit_buffer *ab;
uid_t loginuid = from_kuid(&init_user_ns, audit_get_loginuid(current));
- u32 sessionid = audit_get_sessionid(current);
+ unsigned int sessionid = audit_get_sessionid(current);
if (!audit_enabled)
return;
}
/**
- * audit_receive_filter - apply all rules to the specified message type
+ * audit_rule_change - apply all rules to the specified message type
* @type: audit message type
* @portid: target port id for netlink audit messages
* @seq: netlink audit message sequence (serial) number
* @data: payload data
* @datasz: size of payload data
*/
-int audit_receive_filter(int type, __u32 portid, int seq, void *data,
- size_t datasz)
+int audit_rule_change(int type, __u32 portid, int seq, void *data,
+ size_t datasz)
{
- struct task_struct *tsk;
- struct audit_netlink_list *dest;
int err = 0;
struct audit_entry *entry;
switch (type) {
- case AUDIT_LIST_RULES:
- /* We can't just spew out the rules here because we might fill
- * the available socket buffer space and deadlock waiting for
- * auditctl to read from it... which isn't ever going to
- * happen if we're actually running in the context of auditctl
- * trying to _send_ the stuff */
-
- dest = kmalloc(sizeof(struct audit_netlink_list), GFP_KERNEL);
- if (!dest)
- return -ENOMEM;
- dest->portid = portid;
- dest->pid = task_pid_vnr(current);
- skb_queue_head_init(&dest->q);
-
- mutex_lock(&audit_filter_mutex);
- audit_list_rules(portid, seq, &dest->q);
- mutex_unlock(&audit_filter_mutex);
-
- tsk = kthread_run(audit_send_list, dest, "audit_send_list");
- if (IS_ERR(tsk)) {
- skb_queue_purge(&dest->q);
- kfree(dest);
- err = PTR_ERR(tsk);
- }
- break;
case AUDIT_ADD_RULE:
entry = audit_data_to_entry(data, datasz);
if (IS_ERR(entry))
return err;
}
+/**
+ * audit_list_rules_send - list the audit rules
+ * @request_skb: skb of request we are replying to (used to target the reply)
+ * @seq: netlink audit message sequence (serial) number
+ */
+int audit_list_rules_send(struct sk_buff *request_skb, int seq)
+{
+ u32 portid = NETLINK_CB(request_skb).portid;
+ struct net *net = sock_net(NETLINK_CB(request_skb).sk);
+ struct task_struct *tsk;
+ struct audit_netlink_list *dest;
+ int err = 0;
+
+ /* We can't just spew out the rules here because we might fill
+ * the available socket buffer space and deadlock waiting for
+ * auditctl to read from it... which isn't ever going to
+ * happen if we're actually running in the context of auditctl
+ * trying to _send_ the stuff */
+
+ dest = kmalloc(sizeof(struct audit_netlink_list), GFP_KERNEL);
+ if (!dest)
+ return -ENOMEM;
+ dest->net = get_net(net);
+ dest->portid = portid;
+ skb_queue_head_init(&dest->q);
+
+ mutex_lock(&audit_filter_mutex);
+ audit_list_rules(portid, seq, &dest->q);
+ mutex_unlock(&audit_filter_mutex);
+
+ tsk = kthread_run(audit_send_list, dest, "audit_send_list");
+ if (IS_ERR(tsk)) {
+ skb_queue_purge(&dest->q);
+ kfree(dest);
+ err = PTR_ERR(tsk);
+ }
+
+ return err;
+}
+
int audit_comparator(u32 left, u32 op, u32 right)
{
switch (op) {
{
enum audit_state state = AUDIT_DISABLED;
struct audit_entry *e;
- int ret = 1;
+ int rc, ret;
+
+ ret = 1; /* Audit by default */
rcu_read_lock();
list_for_each_entry_rcu(e, &audit_filter_list[AUDIT_FILTER_USER], list) {
- if (audit_filter_user_rules(&e->rule, type, &state)) {
- if (state == AUDIT_DISABLED)
+ rc = audit_filter_user_rules(&e->rule, type, &state);
+ if (rc) {
+ if (rc > 0 && state == AUDIT_DISABLED)
ret = 0;
break;
}
}
rcu_read_unlock();
- return ret; /* Audit by default */
+ return ret;
}
int audit_filter_type(int type)