X-Git-Url: http://ftp.safe.ca/?a=blobdiff_plain;f=include%2Flinux%2Fsunrpc%2Fxdr.h;h=f94bbdc75c4be540f6667d61bb84574bf4e46850;hb=9f162d2a810b4db48f7b8d7e734d0932c81ec2a1;hp=5d1eed2b58a11b043dff1543701feb59429104c2;hpb=7e06b53d796a3740307b54aa2799077f8a0c84e7;p=safe%2Fjmp%2Flinux-2.6 diff --git a/include/linux/sunrpc/xdr.h b/include/linux/sunrpc/xdr.h index 5d1eed2..f94bbdc 100644 --- a/include/linux/sunrpc/xdr.h +++ b/include/linux/sunrpc/xdr.h @@ -11,6 +11,7 @@ #include #include +#include /* * Buffer adjustment @@ -32,7 +33,7 @@ struct xdr_netobj { * side) or svc_rqst pointer (server side). * Encode functions always assume there's enough room in the buffer. */ -typedef int (*kxdrproc_t)(void *rqstp, u32 *data, void *obj); +typedef int (*kxdrproc_t)(void *rqstp, __be32 *data, void *obj); /* * Basic structure for transmission/reception of a client XDR message. @@ -53,7 +54,10 @@ struct xdr_buf { struct page ** pages; /* Array of contiguous pages */ unsigned int page_base, /* Start of page data */ - page_len; /* Length 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 */ @@ -64,44 +68,45 @@ struct xdr_buf { * pre-xdr'ed macros. */ -#define xdr_zero __constant_htonl(0) -#define xdr_one __constant_htonl(1) -#define xdr_two __constant_htonl(2) - -#define rpc_success __constant_htonl(RPC_SUCCESS) -#define rpc_prog_unavail __constant_htonl(RPC_PROG_UNAVAIL) -#define rpc_prog_mismatch __constant_htonl(RPC_PROG_MISMATCH) -#define rpc_proc_unavail __constant_htonl(RPC_PROC_UNAVAIL) -#define rpc_garbage_args __constant_htonl(RPC_GARBAGE_ARGS) -#define rpc_system_err __constant_htonl(RPC_SYSTEM_ERR) - -#define rpc_auth_ok __constant_htonl(RPC_AUTH_OK) -#define rpc_autherr_badcred __constant_htonl(RPC_AUTH_BADCRED) -#define rpc_autherr_rejectedcred __constant_htonl(RPC_AUTH_REJECTEDCRED) -#define rpc_autherr_badverf __constant_htonl(RPC_AUTH_BADVERF) -#define rpc_autherr_rejectedverf __constant_htonl(RPC_AUTH_REJECTEDVERF) -#define rpc_autherr_tooweak __constant_htonl(RPC_AUTH_TOOWEAK) -#define rpcsec_gsserr_credproblem __constant_htonl(RPCSEC_GSS_CREDPROBLEM) -#define rpcsec_gsserr_ctxproblem __constant_htonl(RPCSEC_GSS_CTXPROBLEM) -#define rpc_autherr_oldseqnum __constant_htonl(101) +#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 */ -u32 * xdr_encode_opaque_fixed(u32 *p, const void *ptr, unsigned int len); -u32 * xdr_encode_opaque(u32 *p, const void *ptr, unsigned int len); -u32 * xdr_encode_string(u32 *p, const char *s); -u32 * xdr_decode_string(u32 *p, char **sp, int *lenp, int maxlen); -u32 * xdr_decode_string_inplace(u32 *p, char **sp, int *lenp, int maxlen); -u32 * xdr_encode_netobj(u32 *p, const struct xdr_netobj *); -u32 * xdr_decode_netobj(u32 *p, struct xdr_netobj *); +__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); -static inline u32 *xdr_encode_array(u32 *p, const void *s, unsigned int len) +static inline __be32 *xdr_encode_array(__be32 *p, const void *s, unsigned int len) { return xdr_encode_opaque(p, s, len); } @@ -109,16 +114,15 @@ static inline u32 *xdr_encode_array(u32 *p, const void *s, unsigned int len) /* * Decode 64bit quantities (NFSv3 support) */ -static inline u32 * -xdr_encode_hyper(u32 *p, __u64 val) +static inline __be32 * +xdr_encode_hyper(__be32 *p, __u64 val) { - *p++ = htonl(val >> 32); - *p++ = htonl(val & 0xFFFFFFFF); - return p; + *(__be64 *)p = cpu_to_be64(val); + return p + 2; } -static inline u32 * -xdr_decode_hyper(u32 *p, __u64 *valp) +static inline __be32 * +xdr_decode_hyper(__be32 *p, __u64 *valp) { *valp = ((__u64) ntohl(*p++)) << 32; *valp |= ntohl(*p++); @@ -129,63 +133,75 @@ xdr_decode_hyper(u32 *p, __u64 *valp) * Adjust kvec to reflect end of xdr'ed data (RPC client XDR) */ static inline int -xdr_adjust_iovec(struct kvec *iov, u32 *p) +xdr_adjust_iovec(struct kvec *iov, __be32 *p) { return iov->iov_len = ((u8 *) p - (u8 *) iov->iov_base); } /* - * Maximum number of iov's we use. - */ -#define MAX_IOVEC (12) - -/* * 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 *, int, int); -extern int xdr_buf_read_netobj(struct xdr_buf *, struct xdr_netobj *, int); -extern int read_bytes_from_xdr_buf(struct xdr_buf *buf, int base, void *obj, int len); +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. */ -typedef struct { +struct xdr_skb_reader { struct sk_buff *skb; unsigned int offset; size_t count; - unsigned int csum; -} skb_reader_t; + __wsum csum; +}; -typedef size_t (*skb_read_actor_t)(skb_reader_t *desc, void *to, size_t len); +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, - skb_reader_t *, skb_read_actor_t); + 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; +}; -struct socket; -struct sockaddr; -extern int xdr_sendpages(struct socket *, struct sockaddr *, int, - struct xdr_buf *, unsigned int, int); +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); /* * Provide some simple tools for XDR buffer overflow-checking etc. */ struct xdr_stream { - uint32_t *p; /* start of available buffer */ + __be32 *p; /* start of available buffer */ struct xdr_buf *buf; /* XDR buffer to read/write */ - uint32_t *end; /* end of available buffer space */ + __be32 *end; /* end of available buffer space */ struct kvec *iov; /* pointer to the current kvec */ }; -extern void xdr_init_encode(struct xdr_stream *xdr, struct xdr_buf *buf, uint32_t *p); -extern uint32_t *xdr_reserve_space(struct xdr_stream *xdr, size_t nbytes); +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, uint32_t *p); -extern uint32_t *xdr_inline_decode(struct xdr_stream *xdr, size_t nbytes); +extern void xdr_init_decode(struct xdr_stream *xdr, struct xdr_buf *buf, __be32 *p); +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__ */