diff options
Diffstat (limited to 'ANDROID_3.4.5/include/linux/sunrpc/xdr.h')
| -rw-r--r-- | ANDROID_3.4.5/include/linux/sunrpc/xdr.h | 231 |
1 files changed, 0 insertions, 231 deletions
diff --git a/ANDROID_3.4.5/include/linux/sunrpc/xdr.h b/ANDROID_3.4.5/include/linux/sunrpc/xdr.h deleted file mode 100644 index af70af33..00000000 --- a/ANDROID_3.4.5/include/linux/sunrpc/xdr.h +++ /dev/null @@ -1,231 +0,0 @@ -/* - * XDR standard data types and function declarations - * - * Copyright (C) 1995-1997 Olaf Kirch <okir@monad.swb.de> - * - * Based on: - * RFC 4506 "XDR: External Data Representation Standard", May 2006 - */ - -#ifndef _SUNRPC_XDR_H_ -#define _SUNRPC_XDR_H_ - -#ifdef __KERNEL__ - -#include <linux/uio.h> -#include <asm/byteorder.h> -#include <asm/unaligned.h> -#include <linux/scatterlist.h> - -/* - * Buffer adjustment - */ -#define XDR_QUADLEN(l) (((l) + 3) >> 2) - -/* - * Generic opaque `network object.' At the kernel level, this type - * is used only by lockd. - */ -#define XDR_MAX_NETOBJ 1024 -struct xdr_netobj { - unsigned int len; - u8 * data; -}; - -/* - * This is the legacy generic XDR function. rqstp is either a rpc_rqst - * (client side) or svc_rqst pointer (server side). - * Encode functions always assume there's enough room in the buffer. - */ -typedef int (*kxdrproc_t)(void *rqstp, __be32 *data, void *obj); - -/* - * Basic structure for transmission/reception of a client XDR message. - * Features a header (for a linear buffer containing RPC headers - * and the data payload for short messages), and then an array of - * pages. - * The tail iovec allows you to append data after the page array. Its - * main interest is for appending padding to the pages in order to - * satisfy the int_32-alignment requirements in RFC1832. - * - * For the future, we might want to string several of these together - * in a list if anybody wants to make use of NFSv4 COMPOUND - * operations and/or has a need for scatter/gather involving pages. - */ -struct xdr_buf { - struct kvec head[1], /* RPC header + non-page data */ - tail[1]; /* Appended after page data */ - - struct page ** pages; /* Array of contiguous pages */ - unsigned int page_base, /* Start of page data */ - page_len, /* Length of page data */ - flags; /* Flags for data disposition */ -#define XDRBUF_READ 0x01 /* target of file read */ -#define XDRBUF_WRITE 0x02 /* source of file write */ - - unsigned int buflen, /* Total length of storage buffer */ - len; /* Length of XDR encoded message */ -}; - -/* - * pre-xdr'ed macros. - */ - -#define xdr_zero cpu_to_be32(0) -#define xdr_one cpu_to_be32(1) -#define xdr_two cpu_to_be32(2) - -#define rpc_success cpu_to_be32(RPC_SUCCESS) -#define rpc_prog_unavail cpu_to_be32(RPC_PROG_UNAVAIL) -#define rpc_prog_mismatch cpu_to_be32(RPC_PROG_MISMATCH) -#define rpc_proc_unavail cpu_to_be32(RPC_PROC_UNAVAIL) -#define rpc_garbage_args cpu_to_be32(RPC_GARBAGE_ARGS) -#define rpc_system_err cpu_to_be32(RPC_SYSTEM_ERR) -#define rpc_drop_reply cpu_to_be32(RPC_DROP_REPLY) - -#define rpc_auth_ok cpu_to_be32(RPC_AUTH_OK) -#define rpc_autherr_badcred cpu_to_be32(RPC_AUTH_BADCRED) -#define rpc_autherr_rejectedcred cpu_to_be32(RPC_AUTH_REJECTEDCRED) -#define rpc_autherr_badverf cpu_to_be32(RPC_AUTH_BADVERF) -#define rpc_autherr_rejectedverf cpu_to_be32(RPC_AUTH_REJECTEDVERF) -#define rpc_autherr_tooweak cpu_to_be32(RPC_AUTH_TOOWEAK) -#define rpcsec_gsserr_credproblem cpu_to_be32(RPCSEC_GSS_CREDPROBLEM) -#define rpcsec_gsserr_ctxproblem cpu_to_be32(RPCSEC_GSS_CTXPROBLEM) -#define rpc_autherr_oldseqnum cpu_to_be32(101) - -/* - * Miscellaneous XDR helper functions - */ -__be32 *xdr_encode_opaque_fixed(__be32 *p, const void *ptr, unsigned int len); -__be32 *xdr_encode_opaque(__be32 *p, const void *ptr, unsigned int len); -__be32 *xdr_encode_string(__be32 *p, const char *s); -__be32 *xdr_decode_string_inplace(__be32 *p, char **sp, unsigned int *lenp, - unsigned int maxlen); -__be32 *xdr_encode_netobj(__be32 *p, const struct xdr_netobj *); -__be32 *xdr_decode_netobj(__be32 *p, struct xdr_netobj *); - -void xdr_encode_pages(struct xdr_buf *, struct page **, unsigned int, - unsigned int); -void xdr_inline_pages(struct xdr_buf *, unsigned int, - struct page **, unsigned int, unsigned int); -void xdr_terminate_string(struct xdr_buf *, const u32); - -static inline __be32 *xdr_encode_array(__be32 *p, const void *s, unsigned int len) -{ - return xdr_encode_opaque(p, s, len); -} - -/* - * Decode 64bit quantities (NFSv3 support) - */ -static inline __be32 * -xdr_encode_hyper(__be32 *p, __u64 val) -{ - put_unaligned_be64(val, p); - return p + 2; -} - -static inline __be32 * -xdr_decode_hyper(__be32 *p, __u64 *valp) -{ - *valp = get_unaligned_be64(p); - return p + 2; -} - -static inline __be32 * -xdr_decode_opaque_fixed(__be32 *p, void *ptr, unsigned int len) -{ - memcpy(ptr, p, len); - return p + XDR_QUADLEN(len); -} - -/* - * Adjust kvec to reflect end of xdr'ed data (RPC client XDR) - */ -static inline int -xdr_adjust_iovec(struct kvec *iov, __be32 *p) -{ - return iov->iov_len = ((u8 *) p - (u8 *) iov->iov_base); -} - -/* - * XDR buffer helper functions - */ -extern void xdr_shift_buf(struct xdr_buf *, size_t); -extern void xdr_buf_from_iov(struct kvec *, struct xdr_buf *); -extern int xdr_buf_subsegment(struct xdr_buf *, struct xdr_buf *, unsigned int, unsigned int); -extern int xdr_buf_read_netobj(struct xdr_buf *, struct xdr_netobj *, unsigned int); -extern int read_bytes_from_xdr_buf(struct xdr_buf *, unsigned int, void *, unsigned int); -extern int write_bytes_to_xdr_buf(struct xdr_buf *, unsigned int, void *, unsigned int); - -/* - * Helper structure for copying from an sk_buff. - */ -struct xdr_skb_reader { - struct sk_buff *skb; - unsigned int offset; - size_t count; - __wsum csum; -}; - -typedef size_t (*xdr_skb_read_actor)(struct xdr_skb_reader *desc, void *to, size_t len); - -size_t xdr_skb_read_bits(struct xdr_skb_reader *desc, void *to, size_t len); -extern int csum_partial_copy_to_xdr(struct xdr_buf *, struct sk_buff *); -extern ssize_t xdr_partial_copy_from_skb(struct xdr_buf *, unsigned int, - struct xdr_skb_reader *, xdr_skb_read_actor); - -extern int xdr_encode_word(struct xdr_buf *, unsigned int, u32); -extern int xdr_decode_word(struct xdr_buf *, unsigned int, u32 *); - -struct xdr_array2_desc; -typedef int (*xdr_xcode_elem_t)(struct xdr_array2_desc *desc, void *elem); -struct xdr_array2_desc { - unsigned int elem_size; - unsigned int array_len; - unsigned int array_maxlen; - xdr_xcode_elem_t xcode; -}; - -extern int xdr_decode_array2(struct xdr_buf *buf, unsigned int base, - struct xdr_array2_desc *desc); -extern int xdr_encode_array2(struct xdr_buf *buf, unsigned int base, - struct xdr_array2_desc *desc); -extern void _copy_from_pages(char *p, struct page **pages, size_t pgbase, - size_t len); - -/* - * Provide some simple tools for XDR buffer overflow-checking etc. - */ -struct xdr_stream { - __be32 *p; /* start of available buffer */ - struct xdr_buf *buf; /* XDR buffer to read/write */ - - __be32 *end; /* end of available buffer space */ - struct kvec *iov; /* pointer to the current kvec */ - struct kvec scratch; /* Scratch buffer */ - struct page **page_ptr; /* pointer to the current page */ -}; - -/* - * These are the xdr_stream style generic XDR encode and decode functions. - */ -typedef void (*kxdreproc_t)(void *rqstp, struct xdr_stream *xdr, void *obj); -typedef int (*kxdrdproc_t)(void *rqstp, struct xdr_stream *xdr, void *obj); - -extern void xdr_init_encode(struct xdr_stream *xdr, struct xdr_buf *buf, __be32 *p); -extern __be32 *xdr_reserve_space(struct xdr_stream *xdr, size_t nbytes); -extern void xdr_write_pages(struct xdr_stream *xdr, struct page **pages, - unsigned int base, unsigned int len); -extern void xdr_init_decode(struct xdr_stream *xdr, struct xdr_buf *buf, __be32 *p); -extern void xdr_init_decode_pages(struct xdr_stream *xdr, struct xdr_buf *buf, - struct page **pages, unsigned int len); -extern void xdr_set_scratch_buffer(struct xdr_stream *xdr, void *buf, size_t buflen); -extern __be32 *xdr_inline_decode(struct xdr_stream *xdr, size_t nbytes); -extern void xdr_read_pages(struct xdr_stream *xdr, unsigned int len); -extern void xdr_enter_page(struct xdr_stream *xdr, unsigned int len); -extern int xdr_process_buf(struct xdr_buf *buf, unsigned int offset, unsigned int len, int (*actor)(struct scatterlist *, void *), void *data); - -#endif /* __KERNEL__ */ - -#endif /* _SUNRPC_XDR_H_ */ |