aboutsummaryrefslogtreecommitdiffstats
path: root/include
diff options
context:
space:
mode:
authorAndreas Gruenbacher <agruen@suse.de>2005-06-22 17:16:26 +0000
committerTrond Myklebust <Trond.Myklebust@netapp.com>2005-06-22 16:07:23 -0400
commita257cdd0e2179630d3201c32ba14d7fcb3c3a055 (patch)
treeaccf4139050690a65f3f2600355cbcd1a602663b /include
parent[PATCH] RPC: Allow the sunrpc server to multiplex serveral programs on a single port (diff)
downloadlinux-dev-a257cdd0e2179630d3201c32ba14d7fcb3c3a055.tar.xz
linux-dev-a257cdd0e2179630d3201c32ba14d7fcb3c3a055.zip
[PATCH] NFSD: Add server support for NFSv3 ACLs.
This adds functions for encoding and decoding POSIX ACLs for the NFSACL protocol extension, and the GETACL and SETACL RPCs. The implementation is compatible with NFSACL in Solaris. Signed-off-by: Andreas Gruenbacher <agruen@suse.de> Acked-by: Olaf Kirch <okir@suse.de> Signed-off-by: Andrew Morton <akpm@osdl.org> Signed-off-by: Trond Myklebust <Trond.Myklebust@netapp.com>
Diffstat (limited to 'include')
-rw-r--r--include/linux/nfsacl.h58
-rw-r--r--include/linux/nfsd/nfsd.h16
-rw-r--r--include/linux/nfsd/xdr.h4
-rw-r--r--include/linux/nfsd/xdr3.h26
-rw-r--r--include/linux/sunrpc/svc.h11
5 files changed, 115 insertions, 0 deletions
diff --git a/include/linux/nfsacl.h b/include/linux/nfsacl.h
new file mode 100644
index 000000000000..54487a99beb8
--- /dev/null
+++ b/include/linux/nfsacl.h
@@ -0,0 +1,58 @@
+/*
+ * File: linux/nfsacl.h
+ *
+ * (C) 2003 Andreas Gruenbacher <agruen@suse.de>
+ */
+#ifndef __LINUX_NFSACL_H
+#define __LINUX_NFSACL_H
+
+#define NFS_ACL_PROGRAM 100227
+
+#define ACLPROC2_GETACL 1
+#define ACLPROC2_SETACL 2
+#define ACLPROC2_GETATTR 3
+#define ACLPROC2_ACCESS 4
+
+#define ACLPROC3_GETACL 1
+#define ACLPROC3_SETACL 2
+
+
+/* Flags for the getacl/setacl mode */
+#define NFS_ACL 0x0001
+#define NFS_ACLCNT 0x0002
+#define NFS_DFACL 0x0004
+#define NFS_DFACLCNT 0x0008
+
+/* Flag for Default ACL entries */
+#define NFS_ACL_DEFAULT 0x1000
+
+#ifdef __KERNEL__
+
+#include <linux/posix_acl.h>
+
+/* Maximum number of ACL entries over NFS */
+#define NFS_ACL_MAX_ENTRIES 1024
+
+#define NFSACL_MAXWORDS (2*(2+3*NFS_ACL_MAX_ENTRIES))
+#define NFSACL_MAXPAGES ((2*(8+12*NFS_ACL_MAX_ENTRIES) + PAGE_SIZE-1) \
+ >> PAGE_SHIFT)
+
+static inline unsigned int
+nfsacl_size(struct posix_acl *acl_access, struct posix_acl *acl_default)
+{
+ unsigned int w = 16;
+ w += max(acl_access ? (int)acl_access->a_count : 3, 4) * 12;
+ if (acl_default)
+ w += max((int)acl_default->a_count, 4) * 12;
+ return w;
+}
+
+extern unsigned int
+nfsacl_encode(struct xdr_buf *buf, unsigned int base, struct inode *inode,
+ struct posix_acl *acl, int encode_entries, int typeflag);
+extern unsigned int
+nfsacl_decode(struct xdr_buf *buf, unsigned int base, unsigned int *aclcnt,
+ struct posix_acl **pacl);
+
+#endif /* __KERNEL__ */
+#endif /* __LINUX_NFSACL_H */
diff --git a/include/linux/nfsd/nfsd.h b/include/linux/nfsd/nfsd.h
index 8f85d9a59607..4bf931d5ff56 100644
--- a/include/linux/nfsd/nfsd.h
+++ b/include/linux/nfsd/nfsd.h
@@ -15,6 +15,7 @@
#include <linux/unistd.h>
#include <linux/dirent.h>
#include <linux/fs.h>
+#include <linux/posix_acl.h>
#include <linux/mount.h>
#include <linux/nfsd/debug.h>
@@ -124,6 +125,21 @@ int nfsd_statfs(struct svc_rqst *, struct svc_fh *,
int nfsd_notify_change(struct inode *, struct iattr *);
int nfsd_permission(struct svc_export *, struct dentry *, int);
+#if defined(CONFIG_NFSD_V2_ACL) || defined(CONFIG_NFSD_V3_ACL)
+#ifdef CONFIG_NFSD_V2_ACL
+extern struct svc_version nfsd_acl_version2;
+#else
+#define nfsd_acl_version2 NULL
+#endif
+#ifdef CONFIG_NFSD_V3_ACL
+extern struct svc_version nfsd_acl_version3;
+#else
+#define nfsd_acl_version3 NULL
+#endif
+struct posix_acl *nfsd_get_posix_acl(struct svc_fh *, int);
+int nfsd_set_posix_acl(struct svc_fh *, int, struct posix_acl *);
+#endif
+
/*
* NFSv4 State
diff --git a/include/linux/nfsd/xdr.h b/include/linux/nfsd/xdr.h
index ecccef777dae..130d4f588a37 100644
--- a/include/linux/nfsd/xdr.h
+++ b/include/linux/nfsd/xdr.h
@@ -169,4 +169,8 @@ int nfssvc_encode_entry(struct readdir_cd *, const char *name,
int nfssvc_release_fhandle(struct svc_rqst *, u32 *, struct nfsd_fhandle *);
+/* Helper functions for NFSv2 ACL code */
+u32 *nfs2svc_encode_fattr(struct svc_rqst *rqstp, u32 *p, struct svc_fh *fhp);
+u32 *nfs2svc_decode_fh(u32 *p, struct svc_fh *fhp);
+
#endif /* LINUX_NFSD_H */
diff --git a/include/linux/nfsd/xdr3.h b/include/linux/nfsd/xdr3.h
index 0ae9e0ef5f68..21e18ce7ca63 100644
--- a/include/linux/nfsd/xdr3.h
+++ b/include/linux/nfsd/xdr3.h
@@ -110,6 +110,19 @@ struct nfsd3_commitargs {
__u32 count;
};
+struct nfsd3_getaclargs {
+ struct svc_fh fh;
+ int mask;
+};
+
+struct posix_acl;
+struct nfsd3_setaclargs {
+ struct svc_fh fh;
+ int mask;
+ struct posix_acl *acl_access;
+ struct posix_acl *acl_default;
+};
+
struct nfsd3_attrstat {
__u32 status;
struct svc_fh fh;
@@ -209,6 +222,14 @@ struct nfsd3_commitres {
struct svc_fh fh;
};
+struct nfsd3_getaclres {
+ __u32 status;
+ struct svc_fh fh;
+ int mask;
+ struct posix_acl *acl_access;
+ struct posix_acl *acl_default;
+};
+
/* dummy type for release */
struct nfsd3_fhandle_pair {
__u32 dummy;
@@ -241,6 +262,7 @@ union nfsd3_xdrstore {
struct nfsd3_fsinfores fsinfores;
struct nfsd3_pathconfres pathconfres;
struct nfsd3_commitres commitres;
+ struct nfsd3_getaclres getaclres;
};
#define NFS3_SVC_XDRSIZE sizeof(union nfsd3_xdrstore)
@@ -316,6 +338,10 @@ int nfs3svc_encode_entry(struct readdir_cd *, const char *name,
int nfs3svc_encode_entry_plus(struct readdir_cd *, const char *name,
int namlen, loff_t offset, ino_t ino,
unsigned int);
+/* Helper functions for NFSv3 ACL code */
+u32 *nfs3svc_encode_post_op_attr(struct svc_rqst *rqstp, u32 *p,
+ struct svc_fh *fhp);
+u32 *nfs3svc_decode_fh(u32 *p, struct svc_fh *fhp);
#endif /* _LINUX_NFSD_XDR3_H */
diff --git a/include/linux/sunrpc/svc.h b/include/linux/sunrpc/svc.h
index facb94488bb1..5af8800e0ce3 100644
--- a/include/linux/sunrpc/svc.h
+++ b/include/linux/sunrpc/svc.h
@@ -185,6 +185,17 @@ xdr_ressize_check(struct svc_rqst *rqstp, u32 *p)
return vec->iov_len <= PAGE_SIZE;
}
+static inline struct page *
+svc_take_res_page(struct svc_rqst *rqstp)
+{
+ if (rqstp->rq_arghi <= rqstp->rq_argused)
+ return NULL;
+ rqstp->rq_arghi--;
+ rqstp->rq_respages[rqstp->rq_resused] =
+ rqstp->rq_argpages[rqstp->rq_arghi];
+ return rqstp->rq_respages[rqstp->rq_resused++];
+}
+
static inline int svc_take_page(struct svc_rqst *rqstp)
{
if (rqstp->rq_arghi <= rqstp->rq_argused)