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Import OpenSSL 1.1.0f

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This commit is contained in:
Steve Dower
2017-09-07 16:27:43 -07:00
committed by Steve Dower
parent ccd3ab4aff
commit f4b81cb7c9
3340 changed files with 325158 additions and 557542 deletions
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13
engines/afalg/build.info Normal file
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@@ -0,0 +1,13 @@
IF[{- !$disabled{"engine"} -}]
IF[{- !$disabled{afalg} -}]
IF[{- $disabled{"dynamic-engine"} -}]
LIBS=../../libcrypto
SOURCE[../../libcrypto]=e_afalg.c e_afalg_err.c
ELSE
ENGINES=afalg
SOURCE[afalg]=e_afalg.c e_afalg_err.c
DEPEND[afalg]=../../libcrypto
INCLUDE[afalg]= ../../include
ENDIF
ENDIF
ENDIF

830
engines/afalg/e_afalg.c Normal file
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@@ -0,0 +1,830 @@
/*
* Copyright 2016 The OpenSSL Project Authors. All Rights Reserved.
*
* Licensed under the OpenSSL license (the "License"). You may not use
* this file except in compliance with the License. You can obtain a copy
* in the file LICENSE in the source distribution or at
* https://www.openssl.org/source/license.html
*/
/* Required for vmsplice */
#ifndef _GNU_SOURCE
# define _GNU_SOURCE
#endif
#include <stdio.h>
#include <string.h>
#include <unistd.h>
#include <openssl/engine.h>
#include <openssl/async.h>
#include <openssl/err.h>
#include <sys/socket.h>
#include <linux/version.h>
#define K_MAJ 4
#define K_MIN1 1
#define K_MIN2 0
#if LINUX_VERSION_CODE <= KERNEL_VERSION(K_MAJ, K_MIN1, K_MIN2) || \
!defined(AF_ALG)
# ifndef PEDANTIC
# warning "AFALG ENGINE requires Kernel Headers >= 4.1.0"
# warning "Skipping Compilation of AFALG engine"
# endif
void engine_load_afalg_int(void);
void engine_load_afalg_int(void)
{
}
#else
# include <linux/if_alg.h>
# include <fcntl.h>
# include <sys/utsname.h>
# include <linux/aio_abi.h>
# include <sys/syscall.h>
# include <errno.h>
# include "e_afalg.h"
# define AFALG_LIB_NAME "AFALG"
# include "e_afalg_err.h"
# ifndef SOL_ALG
# define SOL_ALG 279
# endif
# ifdef ALG_ZERO_COPY
# ifndef SPLICE_F_GIFT
# define SPLICE_F_GIFT (0x08)
# endif
# endif
# define ALG_AES_IV_LEN 16
# define ALG_IV_LEN(len) (sizeof(struct af_alg_iv) + (len))
# define ALG_OP_TYPE unsigned int
# define ALG_OP_LEN (sizeof(ALG_OP_TYPE))
#define ALG_MAX_SALG_NAME 64
#define ALG_MAX_SALG_TYPE 14
# ifdef OPENSSL_NO_DYNAMIC_ENGINE
void engine_load_afalg_int(void);
# endif
/* Local Linkage Functions */
static int afalg_init_aio(afalg_aio *aio);
static int afalg_fin_cipher_aio(afalg_aio *ptr, int sfd,
unsigned char *buf, size_t len);
static int afalg_create_sk(afalg_ctx *actx, const char *ciphertype,
const char *ciphername);
static int afalg_destroy(ENGINE *e);
static int afalg_init(ENGINE *e);
static int afalg_finish(ENGINE *e);
const EVP_CIPHER *afalg_aes_128_cbc(void);
static int afalg_ciphers(ENGINE *e, const EVP_CIPHER **cipher,
const int **nids, int nid);
static int afalg_cipher_init(EVP_CIPHER_CTX *ctx, const unsigned char *key,
const unsigned char *iv, int enc);
static int afalg_do_cipher(EVP_CIPHER_CTX *ctx, unsigned char *out,
const unsigned char *in, size_t inl);
static int afalg_cipher_cleanup(EVP_CIPHER_CTX *ctx);
static int afalg_chk_platform(void);
/* Engine Id and Name */
static const char *engine_afalg_id = "afalg";
static const char *engine_afalg_name = "AFALG engine support";
static int afalg_cipher_nids[] = {
NID_aes_128_cbc
};
static EVP_CIPHER *_hidden_aes_128_cbc = NULL;
static ossl_inline int io_setup(unsigned n, aio_context_t *ctx)
{
return syscall(__NR_io_setup, n, ctx);
}
static ossl_inline int eventfd(int n)
{
return syscall(__NR_eventfd, n);
}
static ossl_inline int io_destroy(aio_context_t ctx)
{
return syscall(__NR_io_destroy, ctx);
}
static ossl_inline int io_read(aio_context_t ctx, long n, struct iocb **iocb)
{
return syscall(__NR_io_submit, ctx, n, iocb);
}
static ossl_inline int io_getevents(aio_context_t ctx, long min, long max,
struct io_event *events,
struct timespec *timeout)
{
return syscall(__NR_io_getevents, ctx, min, max, events, timeout);
}
static void afalg_waitfd_cleanup(ASYNC_WAIT_CTX *ctx, const void *key,
OSSL_ASYNC_FD waitfd, void *custom)
{
close(waitfd);
}
static int afalg_setup_async_event_notification(afalg_aio *aio)
{
ASYNC_JOB *job;
ASYNC_WAIT_CTX *waitctx;
void *custom = NULL;
int ret;
if ((job = ASYNC_get_current_job()) != NULL) {
/* Async mode */
waitctx = ASYNC_get_wait_ctx(job);
if (waitctx == NULL) {
ALG_WARN("%s: ASYNC_get_wait_ctx error", __func__);
return 0;
}
/* Get waitfd from ASYNC_WAIT_CTX if it is alreday set */
ret = ASYNC_WAIT_CTX_get_fd(waitctx, engine_afalg_id,
&aio->efd, &custom);
if (ret == 0) {
/*
* waitfd is not set in ASYNC_WAIT_CTX, create a new one
* and set it. efd will be signaled when AIO operation completes
*/
aio->efd = eventfd(0);
if (aio->efd == -1) {
ALG_PERR("%s: Failed to get eventfd : ", __func__);
AFALGerr(AFALG_F_AFALG_SETUP_ASYNC_EVENT_NOTIFICATION,
AFALG_R_EVENTFD_FAILED);
return 0;
}
ret = ASYNC_WAIT_CTX_set_wait_fd(waitctx, engine_afalg_id,
aio->efd, custom,
afalg_waitfd_cleanup);
if (ret == 0) {
ALG_WARN("%s: Failed to set wait fd", __func__);
close(aio->efd);
return 0;
}
/* make fd non-blocking in async mode */
if (fcntl(aio->efd, F_SETFL, O_NONBLOCK) != 0) {
ALG_WARN("%s: Failed to set event fd as NONBLOCKING",
__func__);
}
}
aio->mode = MODE_ASYNC;
} else {
/* Sync mode */
aio->efd = eventfd(0);
if (aio->efd == -1) {
ALG_PERR("%s: Failed to get eventfd : ", __func__);
AFALGerr(AFALG_F_AFALG_SETUP_ASYNC_EVENT_NOTIFICATION,
AFALG_R_EVENTFD_FAILED);
return 0;
}
aio->mode = MODE_SYNC;
}
return 1;
}
int afalg_init_aio(afalg_aio *aio)
{
int r = -1;
/* Initialise for AIO */
aio->aio_ctx = 0;
r = io_setup(MAX_INFLIGHTS, &aio->aio_ctx);
if (r < 0) {
ALG_PERR("%s: io_setup error : ", __func__);
AFALGerr(AFALG_F_AFALG_INIT_AIO, AFALG_R_IO_SETUP_FAILED);
return 0;
}
memset(aio->cbt, 0, sizeof(aio->cbt));
aio->efd = -1;
aio->mode = MODE_UNINIT;
return 1;
}
int afalg_fin_cipher_aio(afalg_aio *aio, int sfd, unsigned char *buf,
size_t len)
{
int r;
int retry = 0;
unsigned int done = 0;
struct iocb *cb;
struct timespec timeout;
struct io_event events[MAX_INFLIGHTS];
u_int64_t eval = 0;
timeout.tv_sec = 0;
timeout.tv_nsec = 0;
/* if efd has not been initialised yet do it here */
if (aio->mode == MODE_UNINIT) {
r = afalg_setup_async_event_notification(aio);
if (r == 0)
return 0;
}
cb = &(aio->cbt[0 % MAX_INFLIGHTS]);
memset(cb, '\0', sizeof(*cb));
cb->aio_fildes = sfd;
cb->aio_lio_opcode = IOCB_CMD_PREAD;
/*
* The pointer has to be converted to unsigned value first to avoid
* sign extension on cast to 64 bit value in 32-bit builds
*/
cb->aio_buf = (size_t)buf;
cb->aio_offset = 0;
cb->aio_data = 0;
cb->aio_nbytes = len;
cb->aio_flags = IOCB_FLAG_RESFD;
cb->aio_resfd = aio->efd;
/*
* Perform AIO read on AFALG socket, this in turn performs an async
* crypto operation in kernel space
*/
r = io_read(aio->aio_ctx, 1, &cb);
if (r < 0) {
ALG_PWARN("%s: io_read failed : ", __func__);
return 0;
}
do {
/* While AIO read is being performed pause job */
ASYNC_pause_job();
/* Check for completion of AIO read */
r = read(aio->efd, &eval, sizeof(eval));
if (r < 0) {
if (errno == EAGAIN || errno == EWOULDBLOCK)
continue;
ALG_PERR("%s: read failed for event fd : ", __func__);
return 0;
} else if (r == 0 || eval <= 0) {
ALG_WARN("%s: eventfd read %d bytes, eval = %lu\n", __func__, r,
eval);
}
if (eval > 0) {
/* Get results of AIO read */
r = io_getevents(aio->aio_ctx, 1, MAX_INFLIGHTS,
events, &timeout);
if (r > 0) {
/*
* events.res indicates the actual status of the operation.
* Handle the error condition first.
*/
if (events[0].res < 0) {
/*
* Underlying operation cannot be completed at the time
* of previous submission. Resubmit for the operation.
*/
if (events[0].res == -EBUSY && retry++ < 3) {
r = io_read(aio->aio_ctx, 1, &cb);
if (r < 0) {
ALG_PERR("%s: retry %d for io_read failed : ",
__func__, retry);
return 0;
}
continue;
} else {
/*
* Retries exceed for -EBUSY or unrecoverable error
* condition for this instance of operation.
*/
ALG_WARN
("%s: Crypto Operation failed with code %lld\n",
__func__, events[0].res);
return 0;
}
}
/* Operation successful. */
done = 1;
} else if (r < 0) {
ALG_PERR("%s: io_getevents failed : ", __func__);
return 0;
} else {
ALG_WARN("%s: io_geteventd read 0 bytes\n", __func__);
}
}
} while (!done);
return 1;
}
static ossl_inline void afalg_set_op_sk(struct cmsghdr *cmsg,
const ALG_OP_TYPE op)
{
cmsg->cmsg_level = SOL_ALG;
cmsg->cmsg_type = ALG_SET_OP;
cmsg->cmsg_len = CMSG_LEN(ALG_OP_LEN);
memcpy(CMSG_DATA(cmsg), &op, ALG_OP_LEN);
}
static void afalg_set_iv_sk(struct cmsghdr *cmsg, const unsigned char *iv,
const unsigned int len)
{
struct af_alg_iv *aiv;
cmsg->cmsg_level = SOL_ALG;
cmsg->cmsg_type = ALG_SET_IV;
cmsg->cmsg_len = CMSG_LEN(ALG_IV_LEN(len));
aiv = (struct af_alg_iv *)CMSG_DATA(cmsg);
aiv->ivlen = len;
memcpy(aiv->iv, iv, len);
}
static ossl_inline int afalg_set_key(afalg_ctx *actx, const unsigned char *key,
const int klen)
{
int ret;
ret = setsockopt(actx->bfd, SOL_ALG, ALG_SET_KEY, key, klen);
if (ret < 0) {
ALG_PERR("%s: Failed to set socket option : ", __func__);
AFALGerr(AFALG_F_AFALG_SET_KEY, AFALG_R_SOCKET_SET_KEY_FAILED);
return 0;
}
return 1;
}
static int afalg_create_sk(afalg_ctx *actx, const char *ciphertype,
const char *ciphername)
{
struct sockaddr_alg sa;
int r = -1;
actx->bfd = actx->sfd = -1;
memset(&sa, 0, sizeof(sa));
sa.salg_family = AF_ALG;
strncpy((char *) sa.salg_type, ciphertype, ALG_MAX_SALG_TYPE);
sa.salg_type[ALG_MAX_SALG_TYPE-1] = '\0';
strncpy((char *) sa.salg_name, ciphername, ALG_MAX_SALG_NAME);
sa.salg_name[ALG_MAX_SALG_NAME-1] = '\0';
actx->bfd = socket(AF_ALG, SOCK_SEQPACKET, 0);
if (actx->bfd == -1) {
ALG_PERR("%s: Failed to open socket : ", __func__);
AFALGerr(AFALG_F_AFALG_CREATE_SK, AFALG_R_SOCKET_CREATE_FAILED);
goto err;
}
r = bind(actx->bfd, (struct sockaddr *)&sa, sizeof(sa));
if (r < 0) {
ALG_PERR("%s: Failed to bind socket : ", __func__);
AFALGerr(AFALG_F_AFALG_CREATE_SK, AFALG_R_SOCKET_BIND_FAILED);
goto err;
}
actx->sfd = accept(actx->bfd, NULL, 0);
if (actx->sfd < 0) {
ALG_PERR("%s: Socket Accept Failed : ", __func__);
AFALGerr(AFALG_F_AFALG_CREATE_SK, AFALG_R_SOCKET_ACCEPT_FAILED);
goto err;
}
return 1;
err:
if (actx->bfd >= 0)
close(actx->bfd);
if (actx->sfd >= 0)
close(actx->sfd);
actx->bfd = actx->sfd = -1;
return 0;
}
static int afalg_start_cipher_sk(afalg_ctx *actx, const unsigned char *in,
size_t inl, const unsigned char *iv,
unsigned int enc)
{
struct msghdr msg = { 0 };
struct cmsghdr *cmsg;
struct iovec iov;
ssize_t sbytes;
# ifdef ALG_ZERO_COPY
int ret;
# endif
char cbuf[CMSG_SPACE(ALG_IV_LEN(ALG_AES_IV_LEN)) + CMSG_SPACE(ALG_OP_LEN)];
memset(cbuf, 0, sizeof(cbuf));
msg.msg_control = cbuf;
msg.msg_controllen = sizeof(cbuf);
/*
* cipher direction (i.e. encrypt or decrypt) and iv are sent to the
* kernel as part of sendmsg()'s ancillary data
*/
cmsg = CMSG_FIRSTHDR(&msg);
afalg_set_op_sk(cmsg, enc);
cmsg = CMSG_NXTHDR(&msg, cmsg);
afalg_set_iv_sk(cmsg, iv, ALG_AES_IV_LEN);
/* iov that describes input data */
iov.iov_base = (unsigned char *)in;
iov.iov_len = inl;
msg.msg_flags = MSG_MORE;
# ifdef ALG_ZERO_COPY
/*
* ZERO_COPY mode
* Works best when buffer is 4k aligned
* OPENS: out of place processing (i.e. out != in)
*/
/* Input data is not sent as part of call to sendmsg() */
msg.msg_iovlen = 0;
msg.msg_iov = NULL;
/* Sendmsg() sends iv and cipher direction to the kernel */
sbytes = sendmsg(actx->sfd, &msg, 0);
if (sbytes < 0) {
ALG_PERR("%s: sendmsg failed for zero copy cipher operation : ",
__func__);
return 0;
}
/*
* vmsplice and splice are used to pin the user space input buffer for
* kernel space processing avoiding copys from user to kernel space
*/
ret = vmsplice(actx->zc_pipe[1], &iov, 1, SPLICE_F_GIFT);
if (ret < 0) {
ALG_PERR("%s: vmsplice failed : ", __func__);
return 0;
}
ret = splice(actx->zc_pipe[0], NULL, actx->sfd, NULL, inl, 0);
if (ret < 0) {
ALG_PERR("%s: splice failed : ", __func__);
return 0;
}
# else
msg.msg_iovlen = 1;
msg.msg_iov = &iov;
/* Sendmsg() sends iv, cipher direction and input data to the kernel */
sbytes = sendmsg(actx->sfd, &msg, 0);
if (sbytes < 0) {
ALG_PERR("%s: sendmsg failed for cipher operation : ", __func__);
return 0;
}
if (sbytes != (ssize_t) inl) {
ALG_WARN("Cipher operation send bytes %zd != inlen %zd\n", sbytes,
inl);
return 0;
}
# endif
return 1;
}
static int afalg_cipher_init(EVP_CIPHER_CTX *ctx, const unsigned char *key,
const unsigned char *iv, int enc)
{
int ciphertype;
int ret;
afalg_ctx *actx;
char ciphername[ALG_MAX_SALG_NAME];
if (ctx == NULL || key == NULL) {
ALG_WARN("%s: Null Parameter\n", __func__);
return 0;
}
if (EVP_CIPHER_CTX_cipher(ctx) == NULL) {
ALG_WARN("%s: Cipher object NULL\n", __func__);
return 0;
}
actx = EVP_CIPHER_CTX_get_cipher_data(ctx);
if (actx == NULL) {
ALG_WARN("%s: Cipher data NULL\n", __func__);
return 0;
}
ciphertype = EVP_CIPHER_CTX_nid(ctx);
switch (ciphertype) {
case NID_aes_128_cbc:
strncpy(ciphername, "cbc(aes)", ALG_MAX_SALG_NAME);
break;
default:
ALG_WARN("%s: Unsupported Cipher type %d\n", __func__, ciphertype);
return 0;
}
ciphername[ALG_MAX_SALG_NAME-1]='\0';
if (ALG_AES_IV_LEN != EVP_CIPHER_CTX_iv_length(ctx)) {
ALG_WARN("%s: Unsupported IV length :%d\n", __func__,
EVP_CIPHER_CTX_iv_length(ctx));
return 0;
}
/* Setup AFALG socket for crypto processing */
ret = afalg_create_sk(actx, "skcipher", ciphername);
if (ret < 1)
return 0;
ret = afalg_set_key(actx, key, EVP_CIPHER_CTX_key_length(ctx));
if (ret < 1)
goto err;
/* Setup AIO ctx to allow async AFALG crypto processing */
if (afalg_init_aio(&actx->aio) == 0)
goto err;
# ifdef ALG_ZERO_COPY
pipe(actx->zc_pipe);
# endif
actx->init_done = MAGIC_INIT_NUM;
return 1;
err:
close(actx->sfd);
close(actx->bfd);
return 0;
}
static int afalg_do_cipher(EVP_CIPHER_CTX *ctx, unsigned char *out,
const unsigned char *in, size_t inl)
{
afalg_ctx *actx;
int ret;
char nxtiv[ALG_AES_IV_LEN] = { 0 };
if (ctx == NULL || out == NULL || in == NULL) {
ALG_WARN("NULL parameter passed to function %s\n", __func__);
return 0;
}
actx = (afalg_ctx *) EVP_CIPHER_CTX_get_cipher_data(ctx);
if (actx == NULL || actx->init_done != MAGIC_INIT_NUM) {
ALG_WARN("%s afalg ctx passed\n",
ctx == NULL ? "NULL" : "Uninitialised");
return 0;
}
/*
* set iv now for decrypt operation as the input buffer can be
* overwritten for inplace operation where in = out.
*/
if (EVP_CIPHER_CTX_encrypting(ctx) == 0) {
memcpy(nxtiv, in + (inl - ALG_AES_IV_LEN), ALG_AES_IV_LEN);
}
/* Send input data to kernel space */
ret = afalg_start_cipher_sk(actx, (unsigned char *)in, inl,
EVP_CIPHER_CTX_iv(ctx),
EVP_CIPHER_CTX_encrypting(ctx));
if (ret < 1) {
return 0;
}
/* Perform async crypto operation in kernel space */
ret = afalg_fin_cipher_aio(&actx->aio, actx->sfd, out, inl);
if (ret < 1)
return 0;
if (EVP_CIPHER_CTX_encrypting(ctx)) {
memcpy(EVP_CIPHER_CTX_iv_noconst(ctx), out + (inl - ALG_AES_IV_LEN),
ALG_AES_IV_LEN);
} else {
memcpy(EVP_CIPHER_CTX_iv_noconst(ctx), nxtiv, ALG_AES_IV_LEN);
}
return 1;
}
static int afalg_cipher_cleanup(EVP_CIPHER_CTX *ctx)
{
afalg_ctx *actx;
if (ctx == NULL) {
ALG_WARN("NULL parameter passed to function %s\n", __func__);
return 0;
}
actx = (afalg_ctx *) EVP_CIPHER_CTX_get_cipher_data(ctx);
if (actx == NULL || actx->init_done != MAGIC_INIT_NUM) {
ALG_WARN("%s afalg ctx passed\n",
ctx == NULL ? "NULL" : "Uninitialised");
return 0;
}
close(actx->sfd);
close(actx->bfd);
# ifdef ALG_ZERO_COPY
close(actx->zc_pipe[0]);
close(actx->zc_pipe[1]);
# endif
/* close efd in sync mode, async mode is closed in afalg_waitfd_cleanup() */
if (actx->aio.mode == MODE_SYNC)
close(actx->aio.efd);
io_destroy(actx->aio.aio_ctx);
return 1;
}
const EVP_CIPHER *afalg_aes_128_cbc(void)
{
if (_hidden_aes_128_cbc == NULL
&& ((_hidden_aes_128_cbc =
EVP_CIPHER_meth_new(NID_aes_128_cbc,
AES_BLOCK_SIZE,
AES_KEY_SIZE_128)) == NULL
|| !EVP_CIPHER_meth_set_iv_length(_hidden_aes_128_cbc, AES_IV_LEN)
|| !EVP_CIPHER_meth_set_flags(_hidden_aes_128_cbc,
EVP_CIPH_CBC_MODE |
EVP_CIPH_FLAG_DEFAULT_ASN1)
|| !EVP_CIPHER_meth_set_init(_hidden_aes_128_cbc,
afalg_cipher_init)
|| !EVP_CIPHER_meth_set_do_cipher(_hidden_aes_128_cbc,
afalg_do_cipher)
|| !EVP_CIPHER_meth_set_cleanup(_hidden_aes_128_cbc,
afalg_cipher_cleanup)
|| !EVP_CIPHER_meth_set_impl_ctx_size(_hidden_aes_128_cbc,
sizeof(afalg_ctx)))) {
EVP_CIPHER_meth_free(_hidden_aes_128_cbc);
_hidden_aes_128_cbc = NULL;
}
return _hidden_aes_128_cbc;
}
static int afalg_ciphers(ENGINE *e, const EVP_CIPHER **cipher,
const int **nids, int nid)
{
int r = 1;
if (cipher == NULL) {
*nids = afalg_cipher_nids;
return (sizeof(afalg_cipher_nids) / sizeof(afalg_cipher_nids[0]));
}
switch (nid) {
case NID_aes_128_cbc:
*cipher = afalg_aes_128_cbc();
break;
default:
*cipher = NULL;
r = 0;
}
return r;
}
static int bind_afalg(ENGINE *e)
{
/* Ensure the afalg error handling is set up */
ERR_load_AFALG_strings();
if (!ENGINE_set_id(e, engine_afalg_id)
|| !ENGINE_set_name(e, engine_afalg_name)
|| !ENGINE_set_destroy_function(e, afalg_destroy)
|| !ENGINE_set_init_function(e, afalg_init)
|| !ENGINE_set_finish_function(e, afalg_finish)) {
AFALGerr(AFALG_F_BIND_AFALG, AFALG_R_INIT_FAILED);
return 0;
}
/*
* Create _hidden_aes_128_cbc by calling afalg_aes_128_cbc
* now, as bind_aflag can only be called by one thread at a
* time.
*/
if (afalg_aes_128_cbc() == NULL) {
AFALGerr(AFALG_F_BIND_AFALG, AFALG_R_INIT_FAILED);
return 0;
}
if (!ENGINE_set_ciphers(e, afalg_ciphers)) {
AFALGerr(AFALG_F_BIND_AFALG, AFALG_R_INIT_FAILED);
return 0;
}
return 1;
}
# ifndef OPENSSL_NO_DYNAMIC_ENGINE
static int bind_helper(ENGINE *e, const char *id)
{
if (id && (strcmp(id, engine_afalg_id) != 0))
return 0;
if (!afalg_chk_platform())
return 0;
if (!bind_afalg(e))
return 0;
return 1;
}
IMPLEMENT_DYNAMIC_CHECK_FN()
IMPLEMENT_DYNAMIC_BIND_FN(bind_helper)
# endif
static int afalg_chk_platform(void)
{
int ret;
int i;
int kver[3] = { -1, -1, -1 };
int sock;
char *str;
struct utsname ut;
ret = uname(&ut);
if (ret != 0) {
AFALGerr(AFALG_F_AFALG_CHK_PLATFORM,
AFALG_R_FAILED_TO_GET_PLATFORM_INFO);
return 0;
}
str = strtok(ut.release, ".");
for (i = 0; i < 3 && str != NULL; i++) {
kver[i] = atoi(str);
str = strtok(NULL, ".");
}
if (KERNEL_VERSION(kver[0], kver[1], kver[2])
< KERNEL_VERSION(K_MAJ, K_MIN1, K_MIN2)) {
ALG_ERR("ASYNC AFALG not supported this kernel(%d.%d.%d)\n",
kver[0], kver[1], kver[2]);
ALG_ERR("ASYNC AFALG requires kernel version %d.%d.%d or later\n",
K_MAJ, K_MIN1, K_MIN2);
AFALGerr(AFALG_F_AFALG_CHK_PLATFORM,
AFALG_R_KERNEL_DOES_NOT_SUPPORT_ASYNC_AFALG);
return 0;
}
/* Test if we can actually create an AF_ALG socket */
sock = socket(AF_ALG, SOCK_SEQPACKET, 0);
if (sock == -1) {
AFALGerr(AFALG_F_AFALG_CHK_PLATFORM, AFALG_R_SOCKET_CREATE_FAILED);
return 0;
}
close(sock);
return 1;
}
# ifdef OPENSSL_NO_DYNAMIC_ENGINE
static ENGINE *engine_afalg(void)
{
ENGINE *ret = ENGINE_new();
if (ret == NULL)
return NULL;
if (!bind_afalg(ret)) {
ENGINE_free(ret);
return NULL;
}
return ret;
}
void engine_load_afalg_int(void)
{
ENGINE *toadd;
if (!afalg_chk_platform())
return;
toadd = engine_afalg();
if (toadd == NULL)
return;
ENGINE_add(toadd);
ENGINE_free(toadd);
ERR_clear_error();
}
# endif
static int afalg_init(ENGINE *e)
{
return 1;
}
static int afalg_finish(ENGINE *e)
{
return 1;
}
static int afalg_destroy(ENGINE *e)
{
ERR_unload_AFALG_strings();
EVP_CIPHER_meth_free(_hidden_aes_128_cbc);
_hidden_aes_128_cbc = NULL;
return 1;
}
#endif /* KERNEL VERSION */

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L AFALG e_afalg_err.h e_afalg_err.c

80
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/*
* Copyright 2016 The OpenSSL Project Authors. All Rights Reserved.
*
* Licensed under the OpenSSL license (the "License"). You may not use
* this file except in compliance with the License. You can obtain a copy
* in the file LICENSE in the source distribution or at
* https://www.openssl.org/source/license.html
*/
#ifndef HEADER_AFALG_H
# define HEADER_AFALG_H
# if defined(__GNUC__) && __GNUC__ >= 4 && \
(!defined(__STDC_VERSION__) || __STDC_VERSION__ < 199901L)
# pragma GCC diagnostic ignored "-Wvariadic-macros"
# endif
# ifdef ALG_DEBUG
# define ALG_DGB(x, ...) fprintf(stderr, "ALG_DBG: " x, __VA_ARGS__)
# define ALG_INFO(x, ...) fprintf(stderr, "ALG_INFO: " x, __VA_ARGS__)
# define ALG_WARN(x, ...) fprintf(stderr, "ALG_WARN: " x, __VA_ARGS__)
# else
# define ALG_DGB(x, ...)
# define ALG_INFO(x, ...)
# define ALG_WARN(x, ...)
# endif
# define ALG_ERR(x, ...) fprintf(stderr, "ALG_ERR: " x, __VA_ARGS__)
# define ALG_PERR(x, ...) \
do { \
fprintf(stderr, "ALG_PERR: " x, __VA_ARGS__); \
perror(NULL); \
} while(0)
# define ALG_PWARN(x, ...) \
do { \
fprintf(stderr, "ALG_PERR: " x, __VA_ARGS__); \
perror(NULL); \
} while(0)
# ifndef AES_BLOCK_SIZE
# define AES_BLOCK_SIZE 16
# endif
# define AES_KEY_SIZE_128 16
# define AES_IV_LEN 16
# define MAX_INFLIGHTS 1
typedef enum {
MODE_UNINIT = 0,
MODE_SYNC,
MODE_ASYNC
} op_mode;
struct afalg_aio_st {
int efd;
op_mode mode;
aio_context_t aio_ctx;
struct io_event events[MAX_INFLIGHTS];
struct iocb cbt[MAX_INFLIGHTS];
};
typedef struct afalg_aio_st afalg_aio;
/*
* MAGIC Number to identify correct initialisation
* of afalg_ctx.
*/
# define MAGIC_INIT_NUM 0x1890671
struct afalg_ctx_st {
int init_done;
int sfd;
int bfd;
# ifdef ALG_ZERO_COPY
int zc_pipe[2];
# endif
afalg_aio aio;
};
typedef struct afalg_ctx_st afalg_ctx;
#endif

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/*
* Copyright 1995-2016 The OpenSSL Project Authors. All Rights Reserved.
*
* Licensed under the OpenSSL license (the "License"). You may not use
* this file except in compliance with the License. You can obtain a copy
* in the file LICENSE in the source distribution or at
* https://www.openssl.org/source/license.html
*/
/*
* NOTE: this file was auto generated by the mkerr.pl script: any changes
* made to it will be overwritten when the script next updates this file,
* only reason strings will be preserved.
*/
#include <stdio.h>
#include <openssl/err.h>
#include "e_afalg_err.h"
/* BEGIN ERROR CODES */
#ifndef OPENSSL_NO_ERR
# define ERR_FUNC(func) ERR_PACK(0,func,0)
# define ERR_REASON(reason) ERR_PACK(0,0,reason)
static ERR_STRING_DATA AFALG_str_functs[] = {
{ERR_FUNC(AFALG_F_AFALG_CHK_PLATFORM), "afalg_chk_platform"},
{ERR_FUNC(AFALG_F_AFALG_CREATE_BIND_SK), "afalg_create_bind_sk"},
{ERR_FUNC(AFALG_F_AFALG_CREATE_BIND_SOCKET), "afalg_create_bind_sk"},
{ERR_FUNC(AFALG_F_AFALG_CREATE_SK), "afalg_create_sk"},
{ERR_FUNC(AFALG_F_AFALG_INIT_AIO), "afalg_init_aio"},
{ERR_FUNC(AFALG_F_AFALG_SETUP_ASYNC_EVENT_NOTIFICATION),
"afalg_setup_async_event_notification"},
{ERR_FUNC(AFALG_F_AFALG_SET_KEY), "afalg_set_key"},
{ERR_FUNC(AFALG_F_AFALG_SOCKET), "afalg_socket"},
{ERR_FUNC(AFALG_F_AFALG_START_CIPHER_SK), "afalg_start_cipher_sk"},
{ERR_FUNC(AFALG_F_BIND_AFALG), "bind_afalg"},
{0, NULL}
};
static ERR_STRING_DATA AFALG_str_reasons[] = {
{ERR_REASON(AFALG_R_EVENTFD_FAILED), "eventfd failed"},
{ERR_REASON(AFALG_R_FAILED_TO_GET_PLATFORM_INFO),
"failed to get platform info"},
{ERR_REASON(AFALG_R_INIT_FAILED), "init failed"},
{ERR_REASON(AFALG_R_IO_SETUP_FAILED), "io setup failed"},
{ERR_REASON(AFALG_R_KERNEL_DOES_NOT_SUPPORT_AFALG),
"kernel does not support afalg"},
{ERR_REASON(AFALG_R_KERNEL_DOES_NOT_SUPPORT_ASYNC_AFALG),
"kernel does not support async afalg"},
{ERR_REASON(AFALG_R_MEM_ALLOC_FAILED), "mem alloc failed"},
{ERR_REASON(AFALG_R_SOCKET_ACCEPT_FAILED), "socket accept failed"},
{ERR_REASON(AFALG_R_SOCKET_BIND_FAILED), "socket bind failed"},
{ERR_REASON(AFALG_R_SOCKET_CREATE_FAILED), "socket create failed"},
{ERR_REASON(AFALG_R_SOCKET_OPERATION_FAILED), "socket operation failed"},
{ERR_REASON(AFALG_R_SOCKET_SET_KEY_FAILED), "socket set key failed"},
{0, NULL}
};
#endif
#ifdef AFALG_LIB_NAME
static ERR_STRING_DATA AFALG_lib_name[] = {
{0, AFALG_LIB_NAME},
{0, NULL}
};
#endif
static int AFALG_lib_error_code = 0;
static int AFALG_error_init = 1;
void ERR_load_AFALG_strings(void)
{
if (AFALG_lib_error_code == 0)
AFALG_lib_error_code = ERR_get_next_error_library();
if (AFALG_error_init) {
AFALG_error_init = 0;
#ifndef OPENSSL_NO_ERR
ERR_load_strings(AFALG_lib_error_code, AFALG_str_functs);
ERR_load_strings(AFALG_lib_error_code, AFALG_str_reasons);
#endif
#ifdef AFALG_LIB_NAME
AFALG_lib_name->error = ERR_PACK(AFALG_lib_error_code, 0, 0);
ERR_load_strings(0, AFALG_lib_name);
#endif
}
}
void ERR_unload_AFALG_strings(void)
{
if (AFALG_error_init == 0) {
#ifndef OPENSSL_NO_ERR
ERR_unload_strings(AFALG_lib_error_code, AFALG_str_functs);
ERR_unload_strings(AFALG_lib_error_code, AFALG_str_reasons);
#endif
#ifdef AFALG_LIB_NAME
ERR_unload_strings(0, AFALG_lib_name);
#endif
AFALG_error_init = 1;
}
}
void ERR_AFALG_error(int function, int reason, char *file, int line)
{
if (AFALG_lib_error_code == 0)
AFALG_lib_error_code = ERR_get_next_error_library();
ERR_PUT_error(AFALG_lib_error_code, function, reason, file, line);
}

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/*
* Copyright 1995-2016 The OpenSSL Project Authors. All Rights Reserved.
*
* Licensed under the OpenSSL license (the "License"). You may not use
* this file except in compliance with the License. You can obtain a copy
* in the file LICENSE in the source distribution or at
* https://www.openssl.org/source/license.html
*/
/*
* NOTE: this file was auto generated by the mkerr.pl script: any changes
* made to it will be overwritten when the script next updates this file,
* only reason strings will be preserved.
*/
#ifndef HEADER_AFALG_ERR_H
# define HEADER_AFALG_ERR_H
# ifdef __cplusplus
extern "C" {
# endif
/* BEGIN ERROR CODES */
void ERR_load_AFALG_strings(void);
void ERR_unload_AFALG_strings(void);
void ERR_AFALG_error(int function, int reason, char *file, int line);
# define AFALGerr(f,r) ERR_AFALG_error((f),(r),__FILE__,__LINE__)
/* Error codes for the AFALG functions. */
/* Function codes. */
# define AFALG_F_AFALG_CHK_PLATFORM 100
# define AFALG_F_AFALG_CREATE_BIND_SK 106
# define AFALG_F_AFALG_CREATE_BIND_SOCKET 105
# define AFALG_F_AFALG_CREATE_SK 108
# define AFALG_F_AFALG_INIT_AIO 101
# define AFALG_F_AFALG_SETUP_ASYNC_EVENT_NOTIFICATION 107
# define AFALG_F_AFALG_SET_KEY 109
# define AFALG_F_AFALG_SOCKET 102
# define AFALG_F_AFALG_START_CIPHER_SK 103
# define AFALG_F_BIND_AFALG 104
/* Reason codes. */
# define AFALG_R_EVENTFD_FAILED 108
# define AFALG_R_FAILED_TO_GET_PLATFORM_INFO 111
# define AFALG_R_INIT_FAILED 100
# define AFALG_R_IO_SETUP_FAILED 105
# define AFALG_R_KERNEL_DOES_NOT_SUPPORT_AFALG 101
# define AFALG_R_KERNEL_DOES_NOT_SUPPORT_ASYNC_AFALG 107
# define AFALG_R_MEM_ALLOC_FAILED 102
# define AFALG_R_SOCKET_ACCEPT_FAILED 110
# define AFALG_R_SOCKET_BIND_FAILED 103
# define AFALG_R_SOCKET_CREATE_FAILED 109
# define AFALG_R_SOCKET_OPERATION_FAILED 104
# define AFALG_R_SOCKET_SET_KEY_FAILED 106
#ifdef __cplusplus
}
#endif
#endif