From 1a2c28a865396a50b8fb30c696857110d5a7ca9d Mon Sep 17 00:00:00 2001
From: tappro <tappro>
Date: Thu, 25 Aug 2005 09:36:28 +0000
Subject: [PATCH] b=7390 audit on file didn't work on unlink due to loss of
 audit setting. Now audit mask is saved in smfs_inode_info also.

---
 lustre/include/linux/lustre_audit.h |  8 +++----
 lustre/include/linux/lustre_smfs.h  |  7 ++++++
 lustre/smfs/audit.c                 | 43 ++++++++++++++++++++++++++-----------
 lustre/smfs/audit_transfer.c        |  2 +-
 4 files changed, 42 insertions(+), 18 deletions(-)

diff --git a/lustre/include/linux/lustre_audit.h b/lustre/include/linux/lustre_audit.h
index 05c8153..fe96a56 100644
--- a/lustre/include/linux/lustre_audit.h
+++ b/lustre/include/linux/lustre_audit.h
@@ -35,7 +35,7 @@
 //AUDIT OPCODES, also bit number in audit_setting mask
 
 typedef enum {
-        AUDIT_NONE = 0,
+        AUDIT_UNKNOWN = 0,
         AUDIT_CREATE,
         AUDIT_LINK,
         AUDIT_UNLINK,
@@ -51,9 +51,9 @@ typedef enum {
         AUDIT_MAX,
 } audit_op;
 
-#define AUDIT_FAIL AUDIT_MAX
-#define AUDIT_DIR  (AUDIT_MAX + 1)
-#define AUDIT_FS   (AUDIT_MAX + 2)
+#define AUDIT_FAIL  AUDIT_MAX
+#define AUDIT_DIR   (AUDIT_MAX + 1)
+#define AUDIT_FS    (AUDIT_MAX + 2)
 
 #define AUD_BIT(a) (1 << a)
 
diff --git a/lustre/include/linux/lustre_smfs.h b/lustre/include/linux/lustre_smfs.h
index 6533c2a..3ef1a4b 100644
--- a/lustre/include/linux/lustre_smfs.h
+++ b/lustre/include/linux/lustre_smfs.h
@@ -32,6 +32,12 @@ struct snap_inode_info {
         int sn_index;           /*the inode snap_index*/
         ino_t sn_root_ino;        /*the root ino of this snap*/
 };
+
+struct audit_inode_info {
+        __u64 au_mask;
+        __u8  au_valid;
+};
+
 struct smfs_inode_info {
         /* this first part of struct should be the same as in mds_info_info */
         //struct lustre_id smi_id;
@@ -39,6 +45,7 @@ struct smfs_inode_info {
         /* smfs part. */
         struct inode *smi_inode;
         __u32  smi_flags;
+        struct audit_inode_info au_info;
 	struct snap_inode_info sm_sninfo;
 };
 #if 0
diff --git a/lustre/smfs/audit.c b/lustre/smfs/audit.c
index 2f365c9..8134204 100644
--- a/lustre/smfs/audit.c
+++ b/lustre/smfs/audit.c
@@ -43,7 +43,7 @@
 
 static audit_op hook2audit(hook_op hook)
 {
-        audit_op opcode = AUDIT_NONE;
+        audit_op opcode = AUDIT_UNKNOWN;
 
         switch (hook) 
         {
@@ -82,7 +82,7 @@ static audit_op hook2audit(hook_op hook)
                         return AUDIT_READDIR;
 
                 default:
-                        return AUDIT_NONE;
+                        break;
         }
         
         return opcode;
@@ -125,6 +125,25 @@ struct inode * get_inode_from_hook(hook_op hook, void * msg)
 
         return inode;
 }
+
+static inline int smfs_get_inode_audit(struct inode *inode, __u64 *mask)
+{
+        struct fsfilt_operations *fsfilt = S2SMI(inode->i_sb)->sm_cache_fsfilt;
+        struct smfs_inode_info * smi = I2SMI(inode);
+        int rc = 0;
+        
+        if (smi->au_info.au_valid)
+                *mask = smi->au_info.au_mask;
+        else {
+                rc = fsfilt->fs_get_xattr(I2CI(inode), AUDIT_ATTR_EA, mask, sizeof(*mask));
+                if (rc <= 0)
+                        *mask = AUDIT_OFF;
+                smi->au_info.au_valid = 1;
+                smi->au_info.au_mask = *mask;
+        }
+        return 0;
+}
+
 /* is called also from fsfilt_smfs_get_info */
 int smfs_get_audit(struct super_block * sb, struct inode * parent,
                    struct inode * inode,  __u64 * mask)
@@ -158,11 +177,7 @@ int smfs_get_audit(struct super_block * sb, struct inode * parent,
                 RETURN(0);
         }
         /* get inode audit EA */
-        rc = fsfilt->fs_get_xattr(parent, AUDIT_ATTR_EA,
-                                  mask, sizeof(*mask));
-        if (rc <= 0)
-                RETURN(-ENODATA);
-        
+        smfs_get_inode_audit(parent, mask);
         /* check if parent has audit */
         if (IS_AUDIT(*mask))
                 RETURN(0);
@@ -170,11 +185,7 @@ int smfs_get_audit(struct super_block * sb, struct inode * parent,
         if (!inode)
                 RETURN(-ENOENT);
         
-        rc = fsfilt->fs_get_xattr(inode, AUDIT_ATTR_EA,
-                                  mask, sizeof(*mask));
-        if (rc <= 0)
-                RETURN(-ENODATA);
-        
+        smfs_get_inode_audit(inode, mask);
         if (IS_AUDIT(*mask))
                 RETURN(0);
 
@@ -261,6 +272,7 @@ int smfs_set_audit(struct super_block * sb, struct inode * inode,
 {
         void * handle = NULL;
         struct fsfilt_operations * fsfilt = S2SMI(sb)->sm_fsfilt;
+        struct smfs_inode_info *smi = I2SMI(inode);
         int rc = 0;
         
         ENTRY;
@@ -277,7 +289,12 @@ int smfs_set_audit(struct super_block * sb, struct inode * inode,
         if (fsfilt->fs_set_xattr)
                 rc = fsfilt->fs_set_xattr(inode, handle, AUDIT_ATTR_EA,
                                           mask, sizeof(*mask));
-
+        /* save audit EA in inode_info */
+        if (rc >= 0) {
+                smi->au_info.au_mask = *mask;
+                smi->au_info.au_valid = 1;
+        }
+        
         fsfilt->fs_commit(inode->i_sb, inode, handle, 1);
         RETURN(rc);
                                 
diff --git a/lustre/smfs/audit_transfer.c b/lustre/smfs/audit_transfer.c
index 5e58b0f..a814ed9 100644
--- a/lustre/smfs/audit_transfer.c
+++ b/lustre/smfs/audit_transfer.c
@@ -95,7 +95,7 @@ int audit_notify(struct llog_handle *llh, void * arg)
 }
                                                                                                                                                
 const char *opstr[AUDIT_MAX] = {
-        [AUDIT_NONE]     "null",
+        [AUDIT_UNKNOWN]  "unknown",
         [AUDIT_CREATE]   "create",
         [AUDIT_LINK]     "link",
         [AUDIT_UNLINK]   "unlink",
-- 
1.8.3.1