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| author | Chuck Lever <chuck.lever@oracle.com> | 2017-08-03 21:30:11 +0300 |
|---|---|---|
| committer | Anna Schumaker <Anna.Schumaker@Netapp.com> | 2017-08-08 17:52:00 +0300 |
| commit | 41c8f70f5a3db7e06179186b6525fd9ee1d7d314 (patch) | |
| tree | 881602134bc470c4bc2bceeee5f0f420d1b5c2d4 /include/linux/sunrpc | |
| parent | 96f8778f70d0f5b988146d757a26dcd5d5b44116 (diff) | |
| download | linux-41c8f70f5a3db7e06179186b6525fd9ee1d7d314.tar.xz | |
xprtrdma: Harden backchannel call decoding
Signed-off-by: Chuck Lever <chuck.lever@oracle.com>
Signed-off-by: Anna Schumaker <Anna.Schumaker@Netapp.com>
Diffstat (limited to 'include/linux/sunrpc')
| -rw-r--r-- | include/linux/sunrpc/xdr.h | 13 |
1 files changed, 13 insertions, 0 deletions
diff --git a/include/linux/sunrpc/xdr.h b/include/linux/sunrpc/xdr.h index 261b48a2701d..86b59e3525a5 100644 --- a/include/linux/sunrpc/xdr.h +++ b/include/linux/sunrpc/xdr.h @@ -239,6 +239,19 @@ extern unsigned int 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); +/** + * xdr_stream_remaining - Return the number of bytes remaining in the stream + * @xdr: pointer to struct xdr_stream + * + * Return value: + * Number of bytes remaining in @xdr before xdr->end + */ +static inline size_t +xdr_stream_remaining(const struct xdr_stream *xdr) +{ + return xdr->nwords << 2; +} + ssize_t xdr_stream_decode_string_dup(struct xdr_stream *xdr, char **str, size_t maxlen, gfp_t gfp_flags); /** |