/* * Ptrace test for VMX/VSX registers * * Copyright (C) 2015 Anshuman Khandual, IBM Corporation. * * This program is free software; you can redistribute it and/or * modify it under the terms of the GNU General Public License * as published by the Free Software Foundation; either version * 2 of the License, or (at your option) any later version. */ #include "ptrace.h" #include "ptrace-vsx.h" /* Tracer and Tracee Shared Data */ int shm_id; int *cptr, *pptr; unsigned long fp_load[VEC_MAX]; unsigned long fp_load_new[VEC_MAX]; unsigned long fp_store[VEC_MAX]; void vsx(void) { int ret; cptr = (int *)shmat(shm_id, NULL, 0); loadvsx(fp_load, 0); cptr[1] = 1; while (!cptr[0]) asm volatile("" : : : "memory"); shmdt((void *) cptr); storevsx(fp_store, 0); ret = compare_vsx_vmx(fp_store, fp_load_new); if (ret) exit(1); exit(0); } int trace_vsx(pid_t child) { unsigned long vsx[VSX_MAX]; unsigned long vmx[VMX_MAX + 2][2]; FAIL_IF(start_trace(child)); FAIL_IF(show_vsx(child, vsx)); FAIL_IF(validate_vsx(vsx, fp_load)); FAIL_IF(show_vmx(child, vmx)); FAIL_IF(validate_vmx(vmx, fp_load)); memset(vsx, 0, sizeof(vsx)); memset(vmx, 0, sizeof(vmx)); load_vsx_vmx(fp_load_new, vsx, vmx); FAIL_IF(write_vsx(child, vsx)); FAIL_IF(write_vmx(child, vmx)); FAIL_IF(stop_trace(child)); return TEST_PASS; } int ptrace_vsx(void) { pid_t pid; int ret, status, i; shm_id = shmget(IPC_PRIVATE, sizeof(int) * 2, 0777|IPC_CREAT); for (i = 0; i < VEC_MAX; i++) fp_load[i] = i + rand(); for (i = 0; i < VEC_MAX; i++) fp_load_new[i] = i + 2 * rand(); pid = fork(); if (pid < 0) { perror("fork() failed"); return TEST_FAIL; } if (pid == 0) vsx(); if (pid) { pptr = (int *)shmat(shm_id, NULL, 0); while (!pptr[1]) asm volatile("" : : : "memory"); ret = trace_vsx(pid); if (ret) { kill(pid, SIGTERM); shmdt((void *)pptr); shmctl(shm_id, IPC_RMID, NULL); return TEST_FAIL; } pptr[0] = 1; shmdt((void *)pptr); ret = wait(&status); shmctl(shm_id, IPC_RMID, NULL); if (ret != pid) { printf("Child's exit status not captured\n"); return TEST_FAIL; } return (WIFEXITED(status) && WEXITSTATUS(status)) ? TEST_FAIL : TEST_PASS; } return TEST_PASS; } int main(int argc, char *argv[]) { return test_harness(ptrace_vsx, "ptrace_vsx"); } e='author'>author
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authorArd Biesheuvel <ard.biesheuvel@linaro.org>2017-01-17 13:46:29 +0000
committerHerbert Xu <herbert@gondor.apana.org.au>2017-01-23 22:41:33 +0800
commit11e3b725cfc282efe9d4a354153e99d86a16af08 (patch)
tree8b5b9e0e1bcae1ab98ee652ffb7b13b05c209bd6 /fs/befs/io.h
parentd6040764adcb5cb6de1489422411d701c158bb69 (diff)
crypto: arm64/aes-blk - honour iv_out requirement in CBC and CTR modes
Update the ARMv8 Crypto Extensions and the plain NEON AES implementations in CBC and CTR modes to return the next IV back to the skcipher API client. This is necessary for chaining to work correctly. Note that for CTR, this is only done if the request is a round multiple of the block size, since otherwise, chaining is impossible anyway. Cc: <stable@vger.kernel.org> # v3.16+ Signed-off-by: Ard Biesheuvel <ard.biesheuvel@linaro.org> Signed-off-by: Herbert Xu <herbert@gondor.apana.org.au>
Diffstat (limited to 'fs/befs/io.h')