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authorDavid Howells <dhowells@redhat.com>2012-09-24 17:11:27 +0100
committerRusty Russell <rusty@rustcorp.com.au>2012-10-08 13:50:21 +1030
commite1045992949160b56309b730b8bdc428f2f8b69e (patch)
treeca0e00fcd4502cb66df19f4e1aecbb1b4544908c /include/linux/mpi.h
parent42d5ec27f873c654a68f7f865dcd7737513e9508 (diff)
MPILIB: Provide a function to read raw data into an MPI
Provide a function to read raw data of a predetermined size into an MPI rather than expecting the size to be encoded within the data. The data is assumed to represent an unsigned integer, and the resulting MPI will be positive. The function looks like this: MPI mpi_read_raw_data(const void *, size_t); This is useful for reading ASN.1 integer primitives where the length is encoded in the ASN.1 metadata. Signed-off-by: David Howells <dhowells@redhat.com> Signed-off-by: Rusty Russell <rusty@rustcorp.com.au>
Diffstat (limited to 'include/linux/mpi.h')
-rw-r--r--include/linux/mpi.h1
1 files changed, 1 insertions, 0 deletions
diff --git a/include/linux/mpi.h b/include/linux/mpi.h
index d02cca6cc8ce..5af1b81def49 100644
--- a/include/linux/mpi.h
+++ b/include/linux/mpi.h
@@ -76,6 +76,7 @@ void mpi_swap(MPI a, MPI b);
/*-- mpicoder.c --*/
MPI do_encode_md(const void *sha_buffer, unsigned nbits);
+MPI mpi_read_raw_data(const void *xbuffer, size_t nbytes);
MPI mpi_read_from_buffer(const void *buffer, unsigned *ret_nread);
int mpi_fromstr(MPI val, const char *str);
u32 mpi_get_keyid(MPI a, u32 *keyid);