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feat(wpa_supplicant): Support all targets generically in fastpsk

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harshal.patil 2025-01-29 17:08:05 +05:30 committed by Kapil Gupta
parent e02e6fe5ca
commit 700f62e206
1 changed files with 39 additions and 5 deletions
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44
components/wpa_supplicant/esp_supplicant/src/crypto/fastpsk.c
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@ -55,8 +55,14 @@
#include "fastpsk.h"
#include <string.h>
#include <sha/sha_dma.h>
#include <hal/sha_hal.h>
#include "soc/soc_caps.h"
#if SOC_SHA_SUPPORT_PARALLEL_ENG
#include "sha/sha_parallel_engine.h"
#else
#include "sha/sha_core.h"
#endif
#include "esp_log.h"
#ifndef PUT_UINT32_BE
#define PUT_UINT32_BE(n, b, i) \
@ -96,13 +102,21 @@ struct fast_psk_context {
/* Acquire SHA1 hardware for exclusive use */
static inline void sha1_setup(void)
{
#if SOC_SHA_SUPPORT_PARALLEL_ENG
esp_sha_lock_engine(SHA1);
#else
esp_sha_acquire_hardware();
#endif
}
/* Release SHA1 hardware */
static inline void sha1_teardown(void)
{
#if SOC_SHA_SUPPORT_PARALLEL_ENG
esp_sha_unlock_engine(SHA1);
#else
esp_sha_release_hardware();
#endif
}
/*
@ -130,14 +144,34 @@ static void pad_blocks(union hmac_block *ctx, size_t len)
* Performs SHA1 hash operation on two consecutive blocks.
* Input: blocks array (two blocks of 64 bytes each), output (20-byte digest).
*/
#if CONFIG_IDF_TARGET_ESP32
static inline void write32_be(uint32_t n, uint8_t out[4])
{
#if defined(__GNUC__) && __GNUC__ >= 4 && __BYTE_ORDER == __LITTLE_ENDIAN
*(uint32_t *)(out) = __builtin_bswap32(n);
#else
out[0] = (n >> 24) & 0xff;
out[1] = (n >> 16) & 0xff;
out[2] = (n >> 8) & 0xff;
out[3] = n & 0xff;
#endif
}
#endif /* CONFIG_IDF_TARGET_ESP32 */
void sha1_op(uint32_t blocks[FAST_PSK_SHA1_BLOCKS_BUF_WORDS], uint32_t output[SHA1_OUTPUT_SZ_WORDS])
{
/* First block */
sha_hal_hash_block(SHA1, blocks, SHA1_BLOCK_SZ_WORDS, true);
esp_sha_block(SHA1, blocks, true);
/* Second block */
sha_hal_hash_block(SHA1, &blocks[SHA1_BLOCK_SZ_WORDS], SHA1_BLOCK_SZ_WORDS, false);
esp_sha_block(SHA1, &blocks[SHA1_BLOCK_SZ_WORDS], false);
/* Read the final digest */
sha_hal_read_digest(SHA1, output);
esp_sha_read_digest_state(SHA1, output);
#if CONFIG_IDF_TARGET_ESP32
for (int i = 0; i < SHA1_OUTPUT_SZ_WORDS; i++) {
write32_be(output[i], ((uint8_t*) output) + i * 4);
}
#endif /* CONFIG_IDF_TARGET_ESP32 */
}
/*