Merge branch 'audit.b10' of git://git.kernel.org/pub/scm/linux/kernel/git/viro/audit-current

* 'audit.b10' of git://git.kernel.org/pub/scm/linux/kernel/git/viro/audit-current:
  [PATCH] Audit Filter Performance
  [PATCH] Rework of IPC auditing
  [PATCH] More user space subject labels
  [PATCH] Reworked patch for labels on user space messages
  [PATCH] change lspp ipc auditing
  [PATCH] audit inode patch
  [PATCH] support for context based audit filtering, part 2
  [PATCH] support for context based audit filtering
  [PATCH] no need to wank with task_lock() and pinning task down in audit_syscall_exit()
  [PATCH] drop task argument of audit_syscall_{entry,exit}
  [PATCH] drop gfp_mask in audit_log_exit()
  [PATCH] move call of audit_free() into do_exit()
  [PATCH] sockaddr patch
  [PATCH] deal with deadlocks in audit_free()

4 files changed, 193 insertions, 23 deletions

diff --git a/include/linux/audit.h b/include/linux/audit.h
index 1c47c59058c1..b74c148f14e3 100644
--- a/include/linux/audit.h
+++ b/include/linux/audit.h
@@ -83,6 +83,7 @@
 #define AUDIT_CONFIG_CHANGE     1305    /* Audit system configuration change */
 #define AUDIT_SOCKADDR          1306    /* sockaddr copied as syscall arg */
 #define AUDIT_CWD               1307    /* Current working directory */
+#define AUDIT_IPC_SET_PERM      1311    /* IPC new permissions record type */
 
 #define AUDIT_AVC               1400    /* SE Linux avc denial or grant */
 #define AUDIT_SELINUX_ERR       1401    /* Internal SE Linux Errors */
@@ -145,6 +146,11 @@
 #define AUDIT_PERS      10
 #define AUDIT_ARCH      11
 #define AUDIT_MSGTYPE   12
+#define AUDIT_SE_USER   13      /* security label user */
+#define AUDIT_SE_ROLE   14      /* security label role */
+#define AUDIT_SE_TYPE   15      /* security label type */
+#define AUDIT_SE_SEN    16      /* security label sensitivity label */
+#define AUDIT_SE_CLR    17      /* security label clearance label */
 
                                 /* These are ONLY useful when checking
                                  * at syscall exit time (AUDIT_AT_EXIT). */
@@ -287,10 +293,10 @@ struct netlink_skb_parms;
                                 /* Public API */
 extern int  audit_alloc(struct task_struct *task);
 extern void audit_free(struct task_struct *task);
-extern void audit_syscall_entry(struct task_struct *task, int arch,
+extern void audit_syscall_entry(int arch,
                                 int major, unsigned long a0, unsigned long a1,
                                 unsigned long a2, unsigned long a3);
-extern void audit_syscall_exit(struct task_struct *task, int failed, long return_code);
+extern void audit_syscall_exit(int failed, long return_code);
 extern void audit_getname(const char *name);
 extern void audit_putname(const char *name);
 extern void __audit_inode(const char *name, const struct inode *inode, unsigned flags);
@@ -314,7 +320,8 @@ extern void auditsc_get_stamp(struct audit_context *ctx,
                               struct timespec *t, unsigned int *serial);
 extern int  audit_set_loginuid(struct task_struct *task, uid_t loginuid);
 extern uid_t audit_get_loginuid(struct audit_context *ctx);
-extern int audit_ipc_perms(unsigned long qbytes, uid_t uid, gid_t gid, mode_t mode, struct kern_ipc_perm *ipcp);
+extern int audit_ipc_obj(struct kern_ipc_perm *ipcp);
+extern int audit_ipc_set_perm(unsigned long qbytes, uid_t uid, gid_t gid, mode_t mode, struct kern_ipc_perm *ipcp);
 extern int audit_socketcall(int nargs, unsigned long *args);
 extern int audit_sockaddr(int len, void *addr);
 extern int audit_avc_path(struct dentry *dentry, struct vfsmount *mnt);
@@ -323,8 +330,8 @@ extern int audit_set_macxattr(const char *name);
 #else
 #define audit_alloc(t) ({ 0; })
 #define audit_free(t) do { ; } while (0)
-#define audit_syscall_entry(t,ta,a,b,c,d,e) do { ; } while (0)
-#define audit_syscall_exit(t,f,r) do { ; } while (0)
+#define audit_syscall_entry(ta,a,b,c,d,e) do { ; } while (0)
+#define audit_syscall_exit(f,r) do { ; } while (0)
 #define audit_getname(n) do { ; } while (0)
 #define audit_putname(n) do { ; } while (0)
 #define __audit_inode(n,i,f) do { ; } while (0)
@@ -333,7 +340,8 @@ extern int audit_set_macxattr(const char *name);
 #define audit_inode_child(d,i,p) do { ; } while (0)
 #define auditsc_get_stamp(c,t,s) do { BUG(); } while (0)
 #define audit_get_loginuid(c) ({ -1; })
-#define audit_ipc_perms(q,u,g,m,i) ({ 0; })
+#define audit_ipc_obj(i) ({ 0; })
+#define audit_ipc_set_perm(q,u,g,m,i) ({ 0; })
 #define audit_socketcall(n,a) ({ 0; })
 #define audit_sockaddr(len, addr) ({ 0; })
 #define audit_avc_path(dentry, mnt) ({ 0; })
@@ -366,7 +374,7 @@ extern void		    audit_log_d_path(struct audit_buffer *ab,
 extern int audit_filter_user(struct netlink_skb_parms *cb, int type);
 extern int audit_filter_type(int type);
 extern int  audit_receive_filter(int type, int pid, int uid, int seq,
-                                 void *data, size_t datasz, uid_t loginuid);
+                         void *data, size_t datasz, uid_t loginuid, u32 sid);
 #else
 #define audit_log(c,g,t,f,...) do { ; } while (0)
 #define audit_log_start(c,g,t) ({ NULL; })
diff --git a/include/linux/netlink.h b/include/linux/netlink.h
index f8f3d1c927f8..87b8a5703ebc 100644
--- a/include/linux/netlink.h
+++ b/include/linux/netlink.h
@@ -143,6 +143,7 @@ struct netlink_skb_parms
         __u32                   dst_group;
         kernel_cap_t            eff_cap;
         __u32                   loginuid;       /* Login (audit) uid */
+        __u32                   sid;            /* SELinux security id */
 };
 
 #define NETLINK_CB(skb)         (*(struct netlink_skb_parms*)&((skb)->cb))
diff --git a/include/linux/security.h b/include/linux/security.h
index aaa0a5cdbf75..1bab48f6aeac 100644
--- a/include/linux/security.h
+++ b/include/linux/security.h
@@ -869,11 +869,6 @@ struct swap_info_struct;
  *      @ipcp contains the kernel IPC permission structure
  *      @flag contains the desired (requested) permission set
  *      Return 0 if permission is granted.
- * @ipc_getsecurity:
- *      Copy the security label associated with the ipc object into
- *      @buffer.  @buffer may be NULL to request the size of the buffer 
- *      required.  @size indicates the size of @buffer in bytes. Return 
- *      number of bytes used/required on success.
  *
  * Security hooks for individual messages held in System V IPC message queues
  * @msg_msg_alloc_security:
@@ -1223,7 +1218,6 @@ struct security_operations {
         void (*task_to_inode)(struct task_struct *p, struct inode *inode);
 
         int (*ipc_permission) (struct kern_ipc_perm * ipcp, short flag);
-        int (*ipc_getsecurity)(struct kern_ipc_perm *ipcp, void *buffer, size_t size);
 
         int (*msg_msg_alloc_security) (struct msg_msg * msg);
         void (*msg_msg_free_security) (struct msg_msg * msg);
@@ -1887,11 +1881,6 @@ static inline int security_ipc_permission (struct kern_ipc_perm *ipcp,
         return security_ops->ipc_permission (ipcp, flag);
 }
 
-static inline int security_ipc_getsecurity(struct kern_ipc_perm *ipcp, void *buffer, size_t size)
-{
-        return security_ops->ipc_getsecurity(ipcp, buffer, size);
-}
-
 static inline int security_msg_msg_alloc (struct msg_msg * msg)
 {
         return security_ops->msg_msg_alloc_security (msg);
@@ -2532,11 +2521,6 @@ static inline int security_ipc_permission (struct kern_ipc_perm *ipcp,
         return 0;
 }
 
-static inline int security_ipc_getsecurity(struct kern_ipc_perm *ipcp, void *buffer, size_t size)
-{
-        return -EOPNOTSUPP;
-}
-
 static inline int security_msg_msg_alloc (struct msg_msg * msg)
 {
         return 0;
diff --git a/include/linux/selinux.h b/include/linux/selinux.h
new file mode 100644
index 000000000000..4047bcde4484
--- /dev/null
+++ b/include/linux/selinux.h
@@ -0,0 +1,177 @@
+/*
+ * SELinux services exported to the rest of the kernel.
+ *
+ * Author: James Morris <jmorris@redhat.com>
+ *
+ * Copyright (C) 2005 Red Hat, Inc., James Morris <jmorris@redhat.com>
+ * Copyright (C) 2006 Trusted Computer Solutions, Inc. <dgoeddel@trustedcs.com>
+ * Copyright (C) 2006 IBM Corporation, Timothy R. Chavez <tinytim@us.ibm.com>
+ *
+ * This program is free software; you can redistribute it and/or modify
+ * it under the terms of the GNU General Public License version 2,
+ * as published by the Free Software Foundation.
+ */
+#ifndef _LINUX_SELINUX_H
+#define _LINUX_SELINUX_H
+
+struct selinux_audit_rule;
+struct audit_context;
+struct inode;
+struct kern_ipc_perm;
+
+#ifdef CONFIG_SECURITY_SELINUX
+
+/**
+ *      selinux_audit_rule_init - alloc/init an selinux audit rule structure.
+ *      @field: the field this rule refers to
+ *      @op: the operater the rule uses
+ *      @rulestr: the text "target" of the rule
+ *      @rule: pointer to the new rule structure returned via this
+ *
+ *      Returns 0 if successful, -errno if not.  On success, the rule structure
+ *      will be allocated internally.  The caller must free this structure with
+ *      selinux_audit_rule_free() after use.
+ */
+int selinux_audit_rule_init(u32 field, u32 op, char *rulestr,
+                            struct selinux_audit_rule **rule);
+
+/**
+ *      selinux_audit_rule_free - free an selinux audit rule structure.
+ *      @rule: pointer to the audit rule to be freed
+ *
+ *      This will free all memory associated with the given rule.
+ *      If @rule is NULL, no operation is performed.
+ */
+void selinux_audit_rule_free(struct selinux_audit_rule *rule);
+
+/**
+ *      selinux_audit_rule_match - determine if a context ID matches a rule.
+ *      @ctxid: the context ID to check
+ *      @field: the field this rule refers to
+ *      @op: the operater the rule uses
+ *      @rule: pointer to the audit rule to check against
+ *      @actx: the audit context (can be NULL) associated with the check
+ *
+ *      Returns 1 if the context id matches the rule, 0 if it does not, and
+ *      -errno on failure.
+ */
+int selinux_audit_rule_match(u32 ctxid, u32 field, u32 op,
+                             struct selinux_audit_rule *rule,
+                             struct audit_context *actx);
+
+/**
+ *      selinux_audit_set_callback - set the callback for policy reloads.
+ *      @callback: the function to call when the policy is reloaded
+ *
+ *      This sets the function callback function that will update the rules
+ *      upon policy reloads.  This callback should rebuild all existing rules
+ *      using selinux_audit_rule_init().
+ */
+void selinux_audit_set_callback(int (*callback)(void));
+
+/**
+ *      selinux_task_ctxid - determine a context ID for a process.
+ *      @tsk: the task object
+ *      @ctxid: ID value returned via this
+ *
+ *      On return, ctxid will contain an ID for the context.  This value
+ *      should only be used opaquely.
+ */
+void selinux_task_ctxid(struct task_struct *tsk, u32 *ctxid);
+
+/**
+ *     selinux_ctxid_to_string - map a security context ID to a string
+ *     @ctxid: security context ID to be converted.
+ *     @ctx: address of context string to be returned
+ *     @ctxlen: length of returned context string.
+ *
+ *     Returns 0 if successful, -errno if not.  On success, the context
+ *     string will be allocated internally, and the caller must call
+ *     kfree() on it after use.
+ */
+int selinux_ctxid_to_string(u32 ctxid, char **ctx, u32 *ctxlen);
+
+/**
+ *     selinux_get_inode_sid - get the inode's security context ID
+ *     @inode: inode structure to get the sid from.
+ *     @sid: pointer to security context ID to be filled in.
+ *
+ *     Returns nothing
+ */
+void selinux_get_inode_sid(const struct inode *inode, u32 *sid);
+
+/**
+ *     selinux_get_ipc_sid - get the ipc security context ID
+ *     @ipcp: ipc structure to get the sid from.
+ *     @sid: pointer to security context ID to be filled in.
+ *
+ *     Returns nothing
+ */
+void selinux_get_ipc_sid(const struct kern_ipc_perm *ipcp, u32 *sid);
+
+/**
+ *     selinux_get_task_sid - return the SID of task
+ *     @tsk: the task whose SID will be returned
+ *     @sid: pointer to security context ID to be filled in.
+ *
+ *     Returns nothing
+ */
+void selinux_get_task_sid(struct task_struct *tsk, u32 *sid);
+
+
+#else
+
+static inline int selinux_audit_rule_init(u32 field, u32 op,
+                                          char *rulestr,
+                                          struct selinux_audit_rule **rule)
+{
+        return -ENOTSUPP;
+}
+
+static inline void selinux_audit_rule_free(struct selinux_audit_rule *rule)
+{
+        return;
+}
+
+static inline int selinux_audit_rule_match(u32 ctxid, u32 field, u32 op,
+                                           struct selinux_audit_rule *rule,
+                                           struct audit_context *actx)
+{
+        return 0;
+}
+
+static inline void selinux_audit_set_callback(int (*callback)(void))
+{
+        return;
+}
+
+static inline void selinux_task_ctxid(struct task_struct *tsk, u32 *ctxid)
+{
+        *ctxid = 0;
+}
+
+static inline int selinux_ctxid_to_string(u32 ctxid, char **ctx, u32 *ctxlen)
+{
+       *ctx = NULL;
+       *ctxlen = 0;
+       return 0;
+}
+
+static inline void selinux_get_inode_sid(const struct inode *inode, u32 *sid)
+{
+        *sid = 0;
+}
+
+static inline void selinux_get_ipc_sid(const struct kern_ipc_perm *ipcp, u32 *sid)
+{
+        *sid = 0;
+}
+
+static inline void selinux_get_task_sid(struct task_struct *tsk, u32 *sid)
+{
+        *sid = 0;
+}
+
+#endif  /* CONFIG_SECURITY_SELINUX */
+
+#endif /* _LINUX_SELINUX_H */