These changes are the raw update to linux-4.4.6-rt14. Kernel sources

[kvmfornfv.git] / kernel / include / linux / mpi.h

diff --git a/kernel/include/linux/mpi.h b/kernel/include/linux/mpi.h
index 5af1b81..3a5abe9 100644 (file)
--- a/kernel/include/linux/mpi.h
+++ b/kernel/include/linux/mpi.h
@@ -31,12 +31,7 @@
 #define G10_MPI_H
 
 #include <linux/types.h>
-
-/* DSI defines */
-
-#define SHA1_DIGEST_LENGTH   20
-
-/*end of DSI defines */
+#include <linux/scatterlist.h>
 
 #define BYTES_PER_MPI_LIMB     (BITS_PER_LONG / 8)
 #define BITS_PER_MPI_LIMB      BITS_PER_LONG
@@ -78,11 +73,16 @@ void mpi_swap(MPI a, MPI b);
 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);
+MPI mpi_read_raw_from_sgl(struct scatterlist *sgl, unsigned int len);
 int mpi_fromstr(MPI val, const char *str);
 u32 mpi_get_keyid(MPI a, u32 *keyid);
 void *mpi_get_buffer(MPI a, unsigned *nbytes, int *sign);
+int mpi_read_buffer(MPI a, uint8_t *buf, unsigned buf_len, unsigned *nbytes,
+                   int *sign);
 void *mpi_get_secure_buffer(MPI a, unsigned *nbytes, int *sign);
 int mpi_set_buffer(MPI a, const void *buffer, unsigned nbytes, int sign);
+int mpi_write_to_sgl(MPI a, struct scatterlist *sg, unsigned *nbytes,
+                    int *sign);
 
 #define log_mpidump g10_log_mpidump
 
@@ -142,4 +142,17 @@ int mpi_rshift(MPI x, MPI a, unsigned n);
 /*-- mpi-inv.c --*/
 int mpi_invm(MPI x, MPI u, MPI v);
 
+/* inline functions */
+
+/**
+ * mpi_get_size() - returns max size required to store the number
+ *
+ * @a: A multi precision integer for which we want to allocate a bufer
+ *
+ * Return: size required to store the number
+ */
+static inline unsigned int mpi_get_size(MPI a)
+{
+       return a->nlimbs * BYTES_PER_MPI_LIMB;
+}
 #endif /*G10_MPI_H */