3 files changed, 341 insertions, 1 deletions

diff --git a/include/linux/audit.h b/include/linux/audit.h
index 4b62743b2e6d..7c8780b150e6 100644
--- a/include/linux/audit.h
+++ b/include/linux/audit.h
@@ -85,6 +85,10 @@
 #define AUDIT_CWD               1307    /* Current working directory */
 #define AUDIT_EXECVE            1309    /* execve arguments */
 #define AUDIT_IPC_SET_PERM      1311    /* IPC new permissions record type */
+#define AUDIT_MQ_OPEN           1312    /* POSIX MQ open record type */
+#define AUDIT_MQ_SENDRECV       1313    /* POSIX MQ send/receive record type */
+#define AUDIT_MQ_NOTIFY         1314    /* POSIX MQ notify record type */
+#define AUDIT_MQ_GETSETATTR     1315    /* POSIX MQ get/set attribute record type */
 
 #define AUDIT_AVC               1400    /* SE Linux avc denial or grant */
 #define AUDIT_SELINUX_ERR       1401    /* Internal SE Linux Errors */
@@ -287,6 +291,8 @@ struct audit_context;
 struct inode;
 struct netlink_skb_parms;
 struct linux_binprm;
+struct mq_attr;
+struct mqstat;
 
 #define AUDITSC_INVALID 0
 #define AUDITSC_SUCCESS 1
@@ -336,6 +342,11 @@ 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);
 extern int audit_set_macxattr(const char *name);
+extern int __audit_mq_open(int oflag, mode_t mode, struct mq_attr __user *u_attr);
+extern int __audit_mq_timedsend(mqd_t mqdes, size_t msg_len, unsigned int msg_prio, const struct timespec __user *u_abs_timeout);
+extern int __audit_mq_timedreceive(mqd_t mqdes, size_t msg_len, unsigned int __user *u_msg_prio, const struct timespec __user *u_abs_timeout);
+extern int __audit_mq_notify(mqd_t mqdes, const struct sigevent __user *u_notification);
+extern int __audit_mq_getsetattr(mqd_t mqdes, struct mq_attr *mqstat);
 
 static inline int audit_ipc_obj(struct kern_ipc_perm *ipcp)
 {
@@ -349,6 +360,36 @@ static inline int audit_ipc_set_perm(unsigned long qbytes, uid_t uid, gid_t gid,
                 return __audit_ipc_set_perm(qbytes, uid, gid, mode);
         return 0;
 }
+static inline int audit_mq_open(int oflag, mode_t mode, struct mq_attr __user *u_attr)
+{
+        if (unlikely(current->audit_context))
+                return __audit_mq_open(oflag, mode, u_attr);
+        return 0;
+}
+static inline int audit_mq_timedsend(mqd_t mqdes, size_t msg_len, unsigned int msg_prio, const struct timespec __user *u_abs_timeout)
+{
+        if (unlikely(current->audit_context))
+                return __audit_mq_timedsend(mqdes, msg_len, msg_prio, u_abs_timeout);
+        return 0;
+}
+static inline int audit_mq_timedreceive(mqd_t mqdes, size_t msg_len, unsigned int __user *u_msg_prio, const struct timespec __user *u_abs_timeout)
+{
+        if (unlikely(current->audit_context))
+                return __audit_mq_timedreceive(mqdes, msg_len, u_msg_prio, u_abs_timeout);
+        return 0;
+}
+static inline int audit_mq_notify(mqd_t mqdes, const struct sigevent __user *u_notification)
+{
+        if (unlikely(current->audit_context))
+                return __audit_mq_notify(mqdes, u_notification);
+        return 0;
+}
+static inline int audit_mq_getsetattr(mqd_t mqdes, struct mq_attr *mqstat)
+{
+        if (unlikely(current->audit_context))
+                return __audit_mq_getsetattr(mqdes, mqstat);
+        return 0;
+}
 #else
 #define audit_alloc(t) ({ 0; })
 #define audit_free(t) do { ; } while (0)
@@ -369,6 +410,11 @@ static inline int audit_ipc_set_perm(unsigned long qbytes, uid_t uid, gid_t gid,
 #define audit_sockaddr(len, addr) ({ 0; })
 #define audit_avc_path(dentry, mnt) ({ 0; })
 #define audit_set_macxattr(n) do { ; } while (0)
+#define audit_mq_open(o,m,a) ({ 0; })
+#define audit_mq_timedsend(d,l,p,t) ({ 0; })
+#define audit_mq_timedreceive(d,l,p,t) ({ 0; })
+#define audit_mq_notify(d,n) ({ 0; })
+#define audit_mq_getsetattr(d,s) ({ 0; })
 #endif
 
 #ifdef CONFIG_AUDIT
diff --git a/ipc/mqueue.c b/ipc/mqueue.c
index 41ecbd440fed..1511714a9585 100644
--- a/ipc/mqueue.c
+++ b/ipc/mqueue.c
@@ -8,6 +8,8 @@
  * Lockless receive & send, fd based notify:
  *                          Manfred Spraul          (manfred@colorfullife.com)
  *
+ * Audit:                   George Wilson           (ltcgcw@us.ibm.com)
+ *
  * This file is released under the GPL.
  */
 
@@ -24,6 +26,7 @@
 #include <linux/skbuff.h>
 #include <linux/netlink.h>
 #include <linux/syscalls.h>
+#include <linux/audit.h>
 #include <linux/signal.h>
 #include <linux/mutex.h>
 
@@ -657,6 +660,10 @@ asmlinkage long sys_mq_open(const char __user *u_name, int oflag, mode_t mode,
         char *name;
         int fd, error;
 
+        error = audit_mq_open(oflag, mode, u_attr);
+        if (error != 0)
+                return error;
+
         if (IS_ERR(name = getname(u_name)))
                 return PTR_ERR(name);
 
@@ -814,6 +821,10 @@ asmlinkage long sys_mq_timedsend(mqd_t mqdes, const char __user *u_msg_ptr,
         long timeout;
         int ret;
 
+        ret = audit_mq_timedsend(mqdes, msg_len, msg_prio, u_abs_timeout);
+        if (ret != 0)
+                return ret;
+
         if (unlikely(msg_prio >= (unsigned long) MQ_PRIO_MAX))
                 return -EINVAL;
 
@@ -896,6 +907,10 @@ asmlinkage ssize_t sys_mq_timedreceive(mqd_t mqdes, char __user *u_msg_ptr,
         struct mqueue_inode_info *info;
         struct ext_wait_queue wait;
 
+        ret = audit_mq_timedreceive(mqdes, msg_len, u_msg_prio, u_abs_timeout);
+        if (ret != 0)
+                return ret;
+
         timeout = prepare_timeout(u_abs_timeout);
 
         ret = -EBADF;
@@ -975,6 +990,10 @@ asmlinkage long sys_mq_notify(mqd_t mqdes,
         struct mqueue_inode_info *info;
         struct sk_buff *nc;
 
+        ret = audit_mq_notify(mqdes, u_notification);
+        if (ret != 0)
+                return ret;
+
         nc = NULL;
         sock = NULL;
         if (u_notification != NULL) {
@@ -1115,6 +1134,9 @@ asmlinkage long sys_mq_getsetattr(mqd_t mqdes,
         omqstat = info->attr;
         omqstat.mq_flags = filp->f_flags & O_NONBLOCK;
         if (u_mqstat) {
+                ret = audit_mq_getsetattr(mqdes, &mqstat);
+                if (ret != 0)
+                        goto out;
                 if (mqstat.mq_flags & O_NONBLOCK)
                         filp->f_flags |= O_NONBLOCK;
                 else
diff --git a/kernel/auditsc.c b/kernel/auditsc.c
index 4503c4663cf8..14e295a4121b 100644
--- a/kernel/auditsc.c
+++ b/kernel/auditsc.c
@@ -3,7 +3,7 @@
  *
  * Copyright 2003-2004 Red Hat Inc., Durham, North Carolina.
  * Copyright 2005 Hewlett-Packard Development Company, L.P.
- * Copyright (C) 2005 IBM Corporation
+ * Copyright (C) 2005, 2006 IBM Corporation
  * All Rights Reserved.
  *
  * This program is free software; you can redistribute it and/or modify
@@ -29,6 +29,9 @@
  * this file -- see entry.S) is based on a GPL'd patch written by
  * okir@suse.de and Copyright 2003 SuSE Linux AG.
  *
+ * POSIX message queue support added by George Wilson <ltcgcw@us.ibm.com>,
+ * 2006.
+ *
  * The support of additional filter rules compares (>, <, >=, <=) was
  * added by Dustin Kirkland <dustin.kirkland@us.ibm.com>, 2005.
  *
@@ -49,6 +52,7 @@
 #include <linux/module.h>
 #include <linux/mount.h>
 #include <linux/socket.h>
+#include <linux/mqueue.h>
 #include <linux/audit.h>
 #include <linux/personality.h>
 #include <linux/time.h>
@@ -102,6 +106,33 @@ struct audit_aux_data {
 
 #define AUDIT_AUX_IPCPERM       0
 
+struct audit_aux_data_mq_open {
+        struct audit_aux_data   d;
+        int                     oflag;
+        mode_t                  mode;
+        struct mq_attr          attr;
+};
+
+struct audit_aux_data_mq_sendrecv {
+        struct audit_aux_data   d;
+        mqd_t                   mqdes;
+        size_t                  msg_len;
+        unsigned int            msg_prio;
+        struct timespec         abs_timeout;
+};
+
+struct audit_aux_data_mq_notify {
+        struct audit_aux_data   d;
+        mqd_t                   mqdes;
+        struct sigevent         notification;
+};
+
+struct audit_aux_data_mq_getsetattr {
+        struct audit_aux_data   d;
+        mqd_t                   mqdes;
+        struct mq_attr          mqstat;
+};
+
 struct audit_aux_data_ipcctl {
         struct audit_aux_data   d;
         struct ipc_perm         p;
@@ -644,6 +675,43 @@ static void audit_log_exit(struct audit_context *context, struct task_struct *ts
                         continue; /* audit_panic has been called */
 
                 switch (aux->type) {
+                case AUDIT_MQ_OPEN: {
+                        struct audit_aux_data_mq_open *axi = (void *)aux;
+                        audit_log_format(ab,
+                                "oflag=0x%x mode=%#o mq_flags=0x%lx mq_maxmsg=%ld "
+                                "mq_msgsize=%ld mq_curmsgs=%ld",
+                                axi->oflag, axi->mode, axi->attr.mq_flags,
+                                axi->attr.mq_maxmsg, axi->attr.mq_msgsize,
+                                axi->attr.mq_curmsgs);
+                        break; }
+
+                case AUDIT_MQ_SENDRECV: {
+                        struct audit_aux_data_mq_sendrecv *axi = (void *)aux;
+                        audit_log_format(ab,
+                                "mqdes=%d msg_len=%zd msg_prio=%u "
+                                "abs_timeout_sec=%ld abs_timeout_nsec=%ld",
+                                axi->mqdes, axi->msg_len, axi->msg_prio,
+                                axi->abs_timeout.tv_sec, axi->abs_timeout.tv_nsec);
+                        break; }
+
+                case AUDIT_MQ_NOTIFY: {
+                        struct audit_aux_data_mq_notify *axi = (void *)aux;
+                        audit_log_format(ab,
+                                "mqdes=%d sigev_signo=%d",
+                                axi->mqdes,
+                                axi->notification.sigev_signo);
+                        break; }
+
+                case AUDIT_MQ_GETSETATTR: {
+                        struct audit_aux_data_mq_getsetattr *axi = (void *)aux;
+                        audit_log_format(ab,
+                                "mqdes=%d mq_flags=0x%lx mq_maxmsg=%ld mq_msgsize=%ld "
+                                "mq_curmsgs=%ld ",
+                                axi->mqdes,
+                                axi->mqstat.mq_flags, axi->mqstat.mq_maxmsg,
+                                axi->mqstat.mq_msgsize, axi->mqstat.mq_curmsgs);
+                        break; }
+
                 case AUDIT_IPC: {
                         struct audit_aux_data_ipcctl *axi = (void *)aux;
                         audit_log_format(ab, 
@@ -1183,6 +1251,210 @@ uid_t audit_get_loginuid(struct audit_context *ctx)
 }
 
 /**
+ * __audit_mq_open - record audit data for a POSIX MQ open
+ * @oflag: open flag
+ * @mode: mode bits
+ * @u_attr: queue attributes
+ *
+ * Returns 0 for success or NULL context or < 0 on error.
+ */
+int __audit_mq_open(int oflag, mode_t mode, struct mq_attr __user *u_attr)
+{
+        struct audit_aux_data_mq_open *ax;
+        struct audit_context *context = current->audit_context;
+
+        if (!audit_enabled)
+                return 0;
+
+        if (likely(!context))
+                return 0;
+
+        ax = kmalloc(sizeof(*ax), GFP_ATOMIC);
+        if (!ax)
+                return -ENOMEM;
+
+        if (u_attr != NULL) {
+                if (copy_from_user(&ax->attr, u_attr, sizeof(ax->attr))) {
+                        kfree(ax);
+                        return -EFAULT;
+                }
+        } else
+                memset(&ax->attr, 0, sizeof(ax->attr));
+
+        ax->oflag = oflag;
+        ax->mode = mode;
+
+        ax->d.type = AUDIT_MQ_OPEN;
+        ax->d.next = context->aux;
+        context->aux = (void *)ax;
+        return 0;
+}
+
+/**
+ * __audit_mq_timedsend - record audit data for a POSIX MQ timed send
+ * @mqdes: MQ descriptor
+ * @msg_len: Message length
+ * @msg_prio: Message priority
+ * @abs_timeout: Message timeout in absolute time
+ *
+ * Returns 0 for success or NULL context or < 0 on error.
+ */
+int __audit_mq_timedsend(mqd_t mqdes, size_t msg_len, unsigned int msg_prio,
+                        const struct timespec __user *u_abs_timeout)
+{
+        struct audit_aux_data_mq_sendrecv *ax;
+        struct audit_context *context = current->audit_context;
+
+        if (!audit_enabled)
+                return 0;
+
+        if (likely(!context))
+                return 0;
+
+        ax = kmalloc(sizeof(*ax), GFP_ATOMIC);
+        if (!ax)
+                return -ENOMEM;
+
+        if (u_abs_timeout != NULL) {
+                if (copy_from_user(&ax->abs_timeout, u_abs_timeout, sizeof(ax->abs_timeout))) {
+                        kfree(ax);
+                        return -EFAULT;
+                }
+        } else
+                memset(&ax->abs_timeout, 0, sizeof(ax->abs_timeout));
+
+        ax->mqdes = mqdes;
+        ax->msg_len = msg_len;
+        ax->msg_prio = msg_prio;
+
+        ax->d.type = AUDIT_MQ_SENDRECV;
+        ax->d.next = context->aux;
+        context->aux = (void *)ax;
+        return 0;
+}
+
+/**
+ * __audit_mq_timedreceive - record audit data for a POSIX MQ timed receive
+ * @mqdes: MQ descriptor
+ * @msg_len: Message length
+ * @msg_prio: Message priority
+ * @abs_timeout: Message timeout in absolute time
+ *
+ * Returns 0 for success or NULL context or < 0 on error.
+ */
+int __audit_mq_timedreceive(mqd_t mqdes, size_t msg_len,
+                                unsigned int __user *u_msg_prio,
+                                const struct timespec __user *u_abs_timeout)
+{
+        struct audit_aux_data_mq_sendrecv *ax;
+        struct audit_context *context = current->audit_context;
+
+        if (!audit_enabled)
+                return 0;
+
+        if (likely(!context))
+                return 0;
+
+        ax = kmalloc(sizeof(*ax), GFP_ATOMIC);
+        if (!ax)
+                return -ENOMEM;
+
+        if (u_msg_prio != NULL) {
+                if (get_user(ax->msg_prio, u_msg_prio)) {
+                        kfree(ax);
+                        return -EFAULT;
+                }
+        } else
+                ax->msg_prio = 0;
+
+        if (u_abs_timeout != NULL) {
+                if (copy_from_user(&ax->abs_timeout, u_abs_timeout, sizeof(ax->abs_timeout))) {
+                        kfree(ax);
+                        return -EFAULT;
+                }
+        } else
+                memset(&ax->abs_timeout, 0, sizeof(ax->abs_timeout));
+
+        ax->mqdes = mqdes;
+        ax->msg_len = msg_len;
+
+        ax->d.type = AUDIT_MQ_SENDRECV;
+        ax->d.next = context->aux;
+        context->aux = (void *)ax;
+        return 0;
+}
+
+/**
+ * __audit_mq_notify - record audit data for a POSIX MQ notify
+ * @mqdes: MQ descriptor
+ * @u_notification: Notification event
+ *
+ * Returns 0 for success or NULL context or < 0 on error.
+ */
+
+int __audit_mq_notify(mqd_t mqdes, const struct sigevent __user *u_notification)
+{
+        struct audit_aux_data_mq_notify *ax;
+        struct audit_context *context = current->audit_context;
+
+        if (!audit_enabled)
+                return 0;
+
+        if (likely(!context))
+                return 0;
+
+        ax = kmalloc(sizeof(*ax), GFP_ATOMIC);
+        if (!ax)
+                return -ENOMEM;
+
+        if (u_notification != NULL) {
+                if (copy_from_user(&ax->notification, u_notification, sizeof(ax->notification))) {
+                        kfree(ax);
+                        return -EFAULT;
+                }
+        } else
+                memset(&ax->notification, 0, sizeof(ax->notification));
+
+        ax->mqdes = mqdes;
+
+        ax->d.type = AUDIT_MQ_NOTIFY;
+        ax->d.next = context->aux;
+        context->aux = (void *)ax;
+        return 0;
+}
+
+/**
+ * __audit_mq_getsetattr - record audit data for a POSIX MQ get/set attribute
+ * @mqdes: MQ descriptor
+ * @mqstat: MQ flags
+ *
+ * Returns 0 for success or NULL context or < 0 on error.
+ */
+int __audit_mq_getsetattr(mqd_t mqdes, struct mq_attr *mqstat)
+{
+        struct audit_aux_data_mq_getsetattr *ax;
+        struct audit_context *context = current->audit_context;
+
+        if (!audit_enabled)
+                return 0;
+
+        if (likely(!context))
+                return 0;
+
+        ax = kmalloc(sizeof(*ax), GFP_ATOMIC);
+        if (!ax)
+                return -ENOMEM;
+
+        ax->mqdes = mqdes;
+        ax->mqstat = *mqstat;
+
+        ax->d.type = AUDIT_MQ_GETSETATTR;
+        ax->d.next = context->aux;
+        context->aux = (void *)ax;
+        return 0;
+}
+
+/**
  * audit_ipc_obj - record audit data for ipc object
  * @ipcp: ipc permissions
  *