[CIFS] acl support part 4
Signed-off-by: Steve French <sfrench@us.ibm.com>
diff --git a/fs/cifs/cifsacl.c b/fs/cifs/cifsacl.c
index c46f26b..ecd6da9 100644
--- a/fs/cifs/cifsacl.c
+++ b/fs/cifs/cifsacl.c
@@ -95,23 +95,24 @@
return (-1);
}
-
+/* if the two SIDs (roughly equivalent to a UUID for a user or group) are
+ the same returns 1, if they do not match returns 0 */
int compare_sids(struct cifs_sid *ctsid, struct cifs_sid *cwsid)
{
int i;
int num_subauth, num_sat, num_saw;
if ((!ctsid) || (!cwsid))
- return (-1);
+ return (0);
/* compare the revision */
if (ctsid->revision != cwsid->revision)
- return (-1);
+ return (0);
/* compare all of the six auth values */
for (i = 0; i < 6; ++i) {
if (ctsid->authority[i] != cwsid->authority[i])
- return (-1);
+ return (0);
}
/* compare all of the subauth values if any */
@@ -121,11 +122,11 @@
if (num_subauth) {
for (i = 0; i < num_subauth; ++i) {
if (ctsid->sub_auth[i] != cwsid->sub_auth[i])
- return (-1);
+ return (0);
}
}
- return (0); /* sids compare/match */
+ return (1); /* sids compare/match */
}
@@ -180,7 +181,8 @@
-static void parse_dacl(struct cifs_acl *pdacl, char *end_of_acl)
+static void parse_dacl(struct cifs_acl *pdacl, char *end_of_acl,
+ struct cifs_sid *pownersid, struct cifs_sid pgrpsid)
{
int i;
int num_aces = 0;
@@ -219,7 +221,6 @@
cifscred->aces = kmalloc(num_aces *
sizeof(struct cifs_ace *), GFP_KERNEL);*/
-
for (i = 0; i < num_aces; ++i) {
ppntace[i] = (struct cifs_ntace *)
(acl_base + acl_size);
@@ -317,7 +318,7 @@
if (rc)
return rc;
- parse_dacl(dacl_ptr, end_of_acl);
+ parse_dacl(dacl_ptr, end_of_acl, owner_sid_ptr, group_sid_ptr);
/* cifscred->uid = owner_sid_ptr->rid;
cifscred->gid = group_sid_ptr->rid;
diff --git a/fs/cifs/cifsacl.h b/fs/cifs/cifsacl.h
index fa01053..420f878 100644
--- a/fs/cifs/cifsacl.h
+++ b/fs/cifs/cifsacl.h
@@ -23,9 +23,18 @@
#define _CIFSACL_H
+#define NUM_AUTHS 6 /* number of authority fields */
+#define NUM_SUBAUTHS 5 /* number of sub authority fields */
#define NUM_WK_SIDS 7 /* number of well known sids */
#define SIDNAMELENGTH 20 /* long enough for the ones we care about */
+#define READ_BIT 0x4
+#define WRITE_BIT 0x2
+#define EXEC_BIT 0x1
+
+#define UBITSHIFT 6
+#define GBITSHIFT 3
+
struct cifs_ntsd {
__le16 revision; /* revision level */
__le16 type;
diff --git a/fs/cifs/cifspdu.h b/fs/cifs/cifspdu.h
index d2f0cf2..c41ff74 100644
--- a/fs/cifs/cifspdu.h
+++ b/fs/cifs/cifspdu.h
@@ -215,6 +215,12 @@
/* file_execute, file_read_attributes*/
/* write_dac, and delete. */
+#define FILE_READ_RIGHTS (FILE_READ_DATA | FILE_READ_EA | FILE_READ_ATTRIBUTES)
+#define FILE_WRITE_RIGHTS (FILE_WRITE_DATA | FILE_APPEND_DATA \
+ | FILE_WRITE_EA | FILE_WRITE_ATTRIBUTES)
+#define FILE_EXEC_RIGHTS (FILE_EXECUTE)
+
+
/*
* Invalid readdir handle
*/