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libavformat: add mbedTLS based TLS

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Signed-off-by: Luca Barbato <lu_zero@gentoo.org>
This commit is contained in:
Thomas Volkert
2018-04-21 15:53:31 +02:00
committed by Luca Barbato
parent 39f3b6f3fc
commit 4130e05ff4
7 changed files with 422 additions and 3 deletions
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50
libavformat/rtmpdh.c
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@@ -132,6 +132,56 @@ static int bn_modexp(FFBigNum bn, FFBigNum y, FFBigNum q, FFBigNum p)
BN_CTX_free(ctx);
return 0;
}
#elif CONFIG_MBEDTLS
#define bn_new(bn) \
do { \
bn = av_malloc(sizeof(*bn)); \
if (bn) \
mbedtls_mpi_init(bn); \
} while (0)
#define bn_free(bn) \
do { \
mbedtls_mpi_free(bn); \
av_free(bn); \
} while (0)
#define bn_set_word(bn, w) mbedtls_mpi_lset(bn, w)
#define bn_cmp(a, b) mbedtls_mpi_cmp_mpi(a, b)
#define bn_copy(to, from) mbedtls_mpi_copy(to, from)
#define bn_sub_word(bn, w) mbedtls_mpi_sub_int(bn, bn, w)
#define bn_cmp_1(bn) mbedtls_mpi_cmp_int(bn, 1)
#define bn_num_bytes(bn) (mbedtls_mpi_bitlen(bn) + 7) / 8
#define bn_bn2bin(bn, buf, len) mbedtls_mpi_write_binary(bn, buf, len)
#define bn_bin2bn(bn, buf, len) \
do { \
bn_new(bn); \
if (bn) \
mbedtls_mpi_read_binary(bn, buf, len); \
} while (0)
#define bn_hex2bn(bn, buf, ret) \
do { \
bn_new(bn); \
if (bn) \
ret = (mbedtls_mpi_read_string(bn, 16, buf) == 0); \
else \
ret = 1; \
} while (0)
#define bn_random(bn, num_bits) \
do { \
mbedtls_entropy_context entropy_ctx; \
mbedtls_ctr_drbg_context ctr_drbg_ctx; \
\
mbedtls_entropy_init(&entropy_ctx); \
mbedtls_ctr_drbg_init(&ctr_drbg_ctx); \
mbedtls_ctr_drbg_seed(&ctr_drbg_ctx, \
mbedtls_entropy_func, \
&entropy_ctx, \
NULL, 0); \
mbedtls_mpi_fill_random(bn, (num_bits + 7) / 8, mbedtls_ctr_drbg_random, &ctr_drbg_ctx); \
mbedtls_ctr_drbg_free(&ctr_drbg_ctx); \
mbedtls_entropy_free(&entropy_ctx); \
} while (0)
#define bn_modexp(bn, y, q, p) mbedtls_mpi_exp_mod(bn, y, q, p, 0)
#endif
#define MAX_BYTES 18000