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authorDaniel Baumann <daniel.baumann@progress-linux.org>2024-04-07 18:49:45 +0000
committerDaniel Baumann <daniel.baumann@progress-linux.org>2024-04-07 18:49:45 +0000
commit2c3c1048746a4622d8c89a29670120dc8fab93c4 (patch)
tree848558de17fb3008cdf4d861b01ac7781903ce39 /fs/nfsd/xdr.h
parentInitial commit. (diff)
downloadlinux-2c3c1048746a4622d8c89a29670120dc8fab93c4.tar.xz
linux-2c3c1048746a4622d8c89a29670120dc8fab93c4.zip
Adding upstream version 6.1.76.upstream/6.1.76
Signed-off-by: Daniel Baumann <daniel.baumann@progress-linux.org>
Diffstat (limited to 'fs/nfsd/xdr.h')
-rw-r--r--fs/nfsd/xdr.h177
1 files changed, 177 insertions, 0 deletions
diff --git a/fs/nfsd/xdr.h b/fs/nfsd/xdr.h
new file mode 100644
index 000000000..852f71580
--- /dev/null
+++ b/fs/nfsd/xdr.h
@@ -0,0 +1,177 @@
+/* SPDX-License-Identifier: GPL-2.0 */
+/* XDR types for nfsd. This is mainly a typing exercise. */
+
+#ifndef LINUX_NFSD_H
+#define LINUX_NFSD_H
+
+#include <linux/vfs.h>
+#include "nfsd.h"
+#include "nfsfh.h"
+
+struct nfsd_fhandle {
+ struct svc_fh fh;
+};
+
+struct nfsd_sattrargs {
+ struct svc_fh fh;
+ struct iattr attrs;
+};
+
+struct nfsd_diropargs {
+ struct svc_fh fh;
+ char * name;
+ unsigned int len;
+};
+
+struct nfsd_readargs {
+ struct svc_fh fh;
+ __u32 offset;
+ __u32 count;
+};
+
+struct nfsd_writeargs {
+ svc_fh fh;
+ __u32 offset;
+ __u32 len;
+ struct xdr_buf payload;
+};
+
+struct nfsd_createargs {
+ struct svc_fh fh;
+ char * name;
+ unsigned int len;
+ struct iattr attrs;
+};
+
+struct nfsd_renameargs {
+ struct svc_fh ffh;
+ char * fname;
+ unsigned int flen;
+ struct svc_fh tfh;
+ char * tname;
+ unsigned int tlen;
+};
+
+struct nfsd_linkargs {
+ struct svc_fh ffh;
+ struct svc_fh tfh;
+ char * tname;
+ unsigned int tlen;
+};
+
+struct nfsd_symlinkargs {
+ struct svc_fh ffh;
+ char * fname;
+ unsigned int flen;
+ char * tname;
+ unsigned int tlen;
+ struct iattr attrs;
+ struct kvec first;
+};
+
+struct nfsd_readdirargs {
+ struct svc_fh fh;
+ __u32 cookie;
+ __u32 count;
+};
+
+struct nfsd_stat {
+ __be32 status;
+};
+
+struct nfsd_attrstat {
+ __be32 status;
+ struct svc_fh fh;
+ struct kstat stat;
+};
+
+struct nfsd_diropres {
+ __be32 status;
+ struct svc_fh fh;
+ struct kstat stat;
+};
+
+struct nfsd_readlinkres {
+ __be32 status;
+ int len;
+ struct page *page;
+};
+
+struct nfsd_readres {
+ __be32 status;
+ struct svc_fh fh;
+ unsigned long count;
+ struct kstat stat;
+ struct page **pages;
+};
+
+struct nfsd_readdirres {
+ /* Components of the reply */
+ __be32 status;
+
+ int count;
+
+ /* Used to encode the reply's entry list */
+ struct xdr_stream xdr;
+ struct xdr_buf dirlist;
+ struct readdir_cd common;
+ unsigned int cookie_offset;
+};
+
+struct nfsd_statfsres {
+ __be32 status;
+ struct kstatfs stats;
+};
+
+/*
+ * Storage requirements for XDR arguments and results.
+ */
+union nfsd_xdrstore {
+ struct nfsd_sattrargs sattr;
+ struct nfsd_diropargs dirop;
+ struct nfsd_readargs read;
+ struct nfsd_writeargs write;
+ struct nfsd_createargs create;
+ struct nfsd_renameargs rename;
+ struct nfsd_linkargs link;
+ struct nfsd_symlinkargs symlink;
+ struct nfsd_readdirargs readdir;
+};
+
+#define NFS2_SVC_XDRSIZE sizeof(union nfsd_xdrstore)
+
+
+bool nfssvc_decode_fhandleargs(struct svc_rqst *rqstp, struct xdr_stream *xdr);
+bool nfssvc_decode_sattrargs(struct svc_rqst *rqstp, struct xdr_stream *xdr);
+bool nfssvc_decode_diropargs(struct svc_rqst *rqstp, struct xdr_stream *xdr);
+bool nfssvc_decode_readargs(struct svc_rqst *rqstp, struct xdr_stream *xdr);
+bool nfssvc_decode_writeargs(struct svc_rqst *rqstp, struct xdr_stream *xdr);
+bool nfssvc_decode_createargs(struct svc_rqst *rqstp, struct xdr_stream *xdr);
+bool nfssvc_decode_renameargs(struct svc_rqst *rqstp, struct xdr_stream *xdr);
+bool nfssvc_decode_linkargs(struct svc_rqst *rqstp, struct xdr_stream *xdr);
+bool nfssvc_decode_symlinkargs(struct svc_rqst *rqstp, struct xdr_stream *xdr);
+bool nfssvc_decode_readdirargs(struct svc_rqst *rqstp, struct xdr_stream *xdr);
+
+bool nfssvc_encode_statres(struct svc_rqst *rqstp, struct xdr_stream *xdr);
+bool nfssvc_encode_attrstatres(struct svc_rqst *rqstp, struct xdr_stream *xdr);
+bool nfssvc_encode_diropres(struct svc_rqst *rqstp, struct xdr_stream *xdr);
+bool nfssvc_encode_readlinkres(struct svc_rqst *rqstp, struct xdr_stream *xdr);
+bool nfssvc_encode_readres(struct svc_rqst *rqstp, struct xdr_stream *xdr);
+bool nfssvc_encode_statfsres(struct svc_rqst *rqstp, struct xdr_stream *xdr);
+bool nfssvc_encode_readdirres(struct svc_rqst *rqstp, struct xdr_stream *xdr);
+
+void nfssvc_encode_nfscookie(struct nfsd_readdirres *resp, u32 offset);
+int nfssvc_encode_entry(void *data, const char *name, int namlen,
+ loff_t offset, u64 ino, unsigned int d_type);
+
+void nfssvc_release_attrstat(struct svc_rqst *rqstp);
+void nfssvc_release_diropres(struct svc_rqst *rqstp);
+void nfssvc_release_readres(struct svc_rqst *rqstp);
+
+/* Helper functions for NFSv2 ACL code */
+bool svcxdr_decode_fhandle(struct xdr_stream *xdr, struct svc_fh *fhp);
+bool svcxdr_encode_stat(struct xdr_stream *xdr, __be32 status);
+bool svcxdr_encode_fattr(struct svc_rqst *rqstp, struct xdr_stream *xdr,
+ const struct svc_fh *fhp, const struct kstat *stat);
+
+#endif /* LINUX_NFSD_H */