Daniel Pouzzner 0059f1647e move WC_RNG_BANK_SUPPORT implementation from wolfcrypt/src/random.c and wolfssl/wolfcrypt/random.h to new files wolfcrypt/src/rng_bank.c and wolfssl/wolfcrypt/rng_bank.h; ...

wolfcrypt/src/rng_bank.c:

  * add wc_local_rng_bank_checkout_for_bankref, wc_BankRef_Release(), wc_rng_bank_new(), and wc_rng_bank_free();

  * in wc_rng_bank_checkin(), take a struct wc_rng_bank_inst **rng_inst and NULL it before return;

  * in wc_rng_bank_init(), add a devId arg, and handle devId in wc_rng_bank_inst_reinit();

  * add WC_RNG_BANK_INST_LOCK_* and use them in wc_rng_bank_checkout() and wc_rng_bank_checkin();

  * fix order of operations in wc_rng_bank_checkout() re DISABLE_VECTOR_REGISTERS();

wolfcrypt/src/random.c:

  * refactor per-instance salting for wc_rng_bank_inst: remove changes in Hash_df(), Hash_DRBG_Instantiate(), and _InitRng(), and in wc_rng_bank_init() and wc_rng_bank_inst_reinit(), use wc_InitRngNonce_ex() and pass the wc_rng_bank_inst pointer as the nonce;

  * simplify the WC_RNG_BANK_SUPPORT variant of wc_RNG_GenerateBlock() -- delegate to wc_local_rng_bank_checkout_for_bankref() and remove supplementary error checking;

  * in wc_FreeRng(), call wc_BankRef_Release() when WC_DRBG_BANKREF, and in wc_BankRef_Release(), fix refcount flub (not wolfSSL_RefFree, rather wolfSSL_RefDec);

  * streamline the WOLFSSL_LINUXKM wc_GenerateSeed();

wolfcrypt/test/test.c: add random_bank_test();

linuxkm/lkcapi_sha_glue.c: use WC_RNG_BANK_INST_TO_RNG() opportunistically;

configure.ac: add --enable-amdrdseed as a synonym for --enable-amdrand;

linuxkm/linuxkm_wc_port.h: when LINUXKM_LKCAPI_REGISTER_HASH_DRBG_DEFAULT, don't include get_random_bytes() in struct wolfssl_linuxkm_pie_redirect_table;

add various comments for clarity.

2026-01-07 22:54:07 -06:00

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