diff options
Diffstat (limited to 'kernel/include/linux/mpi.h')
| -rw-r--r-- | kernel/include/linux/mpi.h | 25 |
1 files changed, 19 insertions, 6 deletions
diff --git a/kernel/include/linux/mpi.h b/kernel/include/linux/mpi.h index 5af1b81de..3a5abe95a 100644 --- 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 */ |