724 строки
20 KiB
C
724 строки
20 KiB
C
/*
|
|
* Copyright (c) 2012-2013 Los Alamos National Security, LLC. All rights
|
|
* reserved.
|
|
* $COPYRIGHT$
|
|
*
|
|
* Additional copyrights may follow
|
|
*
|
|
* $HEADER$
|
|
*
|
|
*/
|
|
|
|
#include "opal_config.h"
|
|
#include "opal/constants.h"
|
|
|
|
#include <time.h>
|
|
#include <string.h>
|
|
#include <pmi.h>
|
|
#if WANT_CRAY_PMI2_EXT
|
|
#include <pmi2.h>
|
|
#endif
|
|
|
|
#include "opal_stdint.h"
|
|
#include "opal/class/opal_pointer_array.h"
|
|
#include "opal/dss/dss_types.h"
|
|
#include "opal/util/argv.h"
|
|
#include "opal/util/error.h"
|
|
#include "opal/util/output.h"
|
|
#include "opal/util/show_help.h"
|
|
|
|
#include "opal/mca/common/pmi/common_pmi.h"
|
|
#include "opal/mca/db/base/base.h"
|
|
#include "db_pmi.h"
|
|
|
|
#define OPAL_PMI_PAD 10
|
|
|
|
static int init(void);
|
|
static void finalize(void);
|
|
static int store(const opal_identifier_t *id,
|
|
opal_db_locality_t locality,
|
|
const char *key, const void *object,
|
|
opal_data_type_t type);
|
|
static int store_pointer(const opal_identifier_t *proc,
|
|
opal_db_locality_t locality,
|
|
opal_value_t *kv);
|
|
static int fetch(const opal_identifier_t *proc,
|
|
const char *key, void **data, opal_data_type_t type);
|
|
static int fetch_pointer(const opal_identifier_t *proc,
|
|
const char *key,
|
|
void **data, opal_data_type_t type);
|
|
static int fetch_multiple(const opal_identifier_t *proc,
|
|
const char *key,
|
|
opal_list_t *kvs);
|
|
static int remove_data(const opal_identifier_t *proc, const char *key);
|
|
|
|
opal_db_base_module_t opal_db_pmi_module = {
|
|
init,
|
|
finalize,
|
|
store,
|
|
store_pointer,
|
|
fetch,
|
|
fetch_pointer,
|
|
fetch_multiple,
|
|
remove_data,
|
|
NULL
|
|
};
|
|
|
|
static int pmi_encode(char *outdata, const void *val, size_t vallen);
|
|
static uint8_t* pmi_decode(char *data, size_t *retlen);
|
|
static int setup_pmi(void);
|
|
static char* setup_key(opal_identifier_t name, const char *key);
|
|
|
|
/* Local variables */
|
|
static char *pmi_kvs_name = NULL;
|
|
static int pmi_vallen_max = -1;
|
|
static int pmi_keylen_max = -1;
|
|
|
|
/* Because Cray uses PMI2 extensions for some, but not all,
|
|
* PMI functions, we define a set of wrappers for those
|
|
* common functions we will use
|
|
*/
|
|
static int kvs_put(const char *key, const char *value)
|
|
{
|
|
#if WANT_CRAY_PMI2_EXT
|
|
return PMI2_KVS_Put(key, value);
|
|
#else
|
|
return PMI_KVS_Put(pmi_kvs_name, key, value);
|
|
#endif
|
|
}
|
|
|
|
static int kvs_get(const char *key, char *value, int valuelen)
|
|
{
|
|
#if WANT_CRAY_PMI2_EXT
|
|
int len;
|
|
|
|
return PMI2_KVS_Get(pmi_kvs_name, PMI2_ID_NULL, key, value, valuelen, &len);
|
|
#else
|
|
return PMI_KVS_Get(pmi_kvs_name, key, value, valuelen);
|
|
#endif
|
|
}
|
|
|
|
#if WANT_CRAY_PMI2_EXT
|
|
static char escape_char = '$';
|
|
static char *illegal = "/;=";
|
|
static char *sub = "012";
|
|
#endif
|
|
|
|
static int init(void)
|
|
{
|
|
int rc;
|
|
|
|
if (OPAL_SUCCESS != (rc = setup_pmi())) {
|
|
OPAL_ERROR_LOG(rc);
|
|
}
|
|
|
|
return rc;
|
|
}
|
|
|
|
static void finalize(void)
|
|
{
|
|
if (NULL != pmi_kvs_name) {
|
|
free(pmi_kvs_name);
|
|
pmi_kvs_name = NULL;
|
|
}
|
|
|
|
}
|
|
|
|
static int store(const opal_identifier_t *uid,
|
|
opal_db_locality_t locality,
|
|
const char *key, const void *data, opal_data_type_t type)
|
|
{
|
|
int i, rc;
|
|
char *pmidata, *str, *localdata;
|
|
int64_t i64;
|
|
uint64_t ui64;
|
|
opal_byte_object_t *bo;
|
|
char *pmikey, *tmpkey, *tmp, sav;
|
|
char **strdata=NULL;
|
|
opal_identifier_t proc;
|
|
|
|
/* to protect alignment, copy the data across */
|
|
memcpy(&proc, uid, sizeof(opal_identifier_t));
|
|
|
|
/* pass internal stores down to someone else */
|
|
if (OPAL_DB_INTERNAL == locality) {
|
|
return OPAL_ERR_TAKE_NEXT_OPTION;
|
|
}
|
|
|
|
OPAL_OUTPUT_VERBOSE((5, opal_db_base_framework.framework_output,
|
|
"db:pmi:store: storing key %s[%s] for proc %" PRIu64 "",
|
|
key, opal_dss.lookup_data_type(type), proc));
|
|
|
|
if (NULL == (pmikey = setup_key(proc, key))) {
|
|
OPAL_ERROR_LOG(OPAL_ERR_BAD_PARAM);
|
|
return OPAL_ERR_BAD_PARAM;
|
|
}
|
|
|
|
switch (type) {
|
|
case OPAL_STRING:
|
|
#if WANT_CRAY_PMI2_EXT
|
|
{
|
|
/* the blasted Cray PMI implementation marked a number of common
|
|
* ASCII characters as "illegal", so if we are on one of those
|
|
* machines, then we have to replace those characters with something
|
|
* else
|
|
*/
|
|
size_t n, k;
|
|
bool subbed;
|
|
char *ptr;
|
|
|
|
str = (char*)data;
|
|
/* first, count how many characters need to be replaced - since Cray
|
|
* is the source of the trouble, we only make this slow for them!
|
|
*/
|
|
ptr = str;
|
|
i=0;
|
|
for (n=0; n < strlen(illegal); n++) {
|
|
while (NULL != (tmp = strchr(ptr, illegal[n]))) {
|
|
i++;
|
|
ptr = tmp;
|
|
ptr++;
|
|
}
|
|
}
|
|
/* stretch the string */
|
|
ptr = (char*)malloc(sizeof(char) * (1 + strlen(str) + 2*i));
|
|
/* now construct it */
|
|
k=0;
|
|
for (n=0; n < strlen(str); n++) {
|
|
subbed = false;
|
|
for (i=0; i < (int)strlen(illegal); i++) {
|
|
if (str[n] == illegal[i]) {
|
|
/* escape the character */
|
|
ptr[k++] = escape_char;
|
|
ptr[k++] = sub[i];
|
|
subbed = true;
|
|
break;
|
|
}
|
|
}
|
|
if (!subbed) {
|
|
ptr[k++] = str[n];
|
|
}
|
|
}
|
|
/* pass the result */
|
|
localdata = ptr;
|
|
}
|
|
#else
|
|
localdata = strdup((char*)data);
|
|
#endif
|
|
str = localdata;
|
|
while (pmi_vallen_max < (int)(OPAL_PMI_PAD + strlen(str))) {
|
|
/* the string is too long, so we need to break it into
|
|
* multiple sections
|
|
*/
|
|
tmp = str + pmi_vallen_max - OPAL_PMI_PAD;
|
|
sav = *tmp;
|
|
*tmp = '\0';
|
|
opal_argv_append_nosize(&strdata, str);
|
|
*tmp = sav;
|
|
str = tmp;
|
|
}
|
|
/* put whatever remains on the stack */
|
|
opal_argv_append_nosize(&strdata, str);
|
|
/* cleanup */
|
|
free(localdata);
|
|
/* the first value we put uses the original key, but
|
|
* the data is prepended with the number of sections
|
|
* required to hold the entire string
|
|
*/
|
|
asprintf(&pmidata, "%d:%s", opal_argv_count(strdata), strdata[0]);
|
|
OPAL_OUTPUT_VERBOSE((5, opal_db_base_framework.framework_output,
|
|
"db:pmi:store: storing key %s data %s",
|
|
pmikey, pmidata));
|
|
|
|
if (PMI_SUCCESS != (rc = kvs_put(pmikey, pmidata))) {
|
|
OPAL_PMI_ERROR(rc, "PMI_KVS_Put");
|
|
free(pmidata);
|
|
free(pmikey);
|
|
opal_argv_free(strdata);
|
|
return OPAL_ERROR;
|
|
}
|
|
free(pmidata);
|
|
/* for each remaining segment, augment the key with the index */
|
|
for (i=1; NULL != strdata[i]; i++) {
|
|
asprintf(&tmpkey, "%s:%d", pmikey, i);
|
|
OPAL_OUTPUT_VERBOSE((5, opal_db_base_framework.framework_output,
|
|
"db:pmi:store: storing key %s data %s",
|
|
pmikey, strdata[i]));
|
|
|
|
if (PMI_SUCCESS != (rc = kvs_put(tmpkey, strdata[i]))) {
|
|
OPAL_PMI_ERROR(rc, "PMI_KVS_Put");
|
|
free(pmikey);
|
|
opal_argv_free(strdata);
|
|
return OPAL_ERROR;
|
|
}
|
|
free(tmpkey);
|
|
}
|
|
free(pmikey);
|
|
opal_argv_free(strdata);
|
|
return OPAL_SUCCESS;
|
|
|
|
case OPAL_INT:
|
|
i64 = (int64_t)(*((int*)data));
|
|
asprintf(&pmidata, "%ld", (long)i64);
|
|
break;
|
|
|
|
case OPAL_INT32:
|
|
i64 = (int64_t)(*((int32_t*)data));
|
|
asprintf(&pmidata, "%ld", (long)i64);
|
|
break;
|
|
|
|
case OPAL_INT64:
|
|
i64 = (int64_t)(*((int*)data));
|
|
asprintf(&pmidata, "%ld", (long)i64);
|
|
break;
|
|
|
|
case OPAL_UINT64:
|
|
ui64 = *((uint64_t*)data);
|
|
asprintf(&pmidata, "%lu", (unsigned long)ui64);
|
|
break;
|
|
|
|
case OPAL_UINT32:
|
|
ui64 = (uint64_t)(*((uint32_t*)data));
|
|
asprintf(&pmidata, "%lu", (unsigned long)ui64);
|
|
break;
|
|
|
|
case OPAL_UINT16:
|
|
ui64 = (uint64_t)(*((uint16_t*)data));
|
|
asprintf(&pmidata, "%lu", (unsigned long)ui64);
|
|
break;
|
|
|
|
case OPAL_BYTE_OBJECT:
|
|
bo = (opal_byte_object_t*)data;
|
|
pmidata = (char*)malloc(pmi_vallen_max*sizeof(char));
|
|
if (OPAL_SUCCESS != (rc = pmi_encode(pmidata, bo->bytes, bo->size))) {
|
|
OPAL_ERROR_LOG(rc);
|
|
free(pmidata);
|
|
return rc;
|
|
}
|
|
break;
|
|
|
|
default:
|
|
OPAL_ERROR_LOG(OPAL_ERR_NOT_SUPPORTED);
|
|
return OPAL_ERR_NOT_SUPPORTED;
|
|
}
|
|
|
|
OPAL_OUTPUT_VERBOSE((10, opal_db_base_framework.framework_output,
|
|
"PUTTING KEY %s DATA %s",
|
|
pmikey, pmidata));
|
|
|
|
rc = kvs_put(pmikey, pmidata);
|
|
if (PMI_SUCCESS != rc) {
|
|
OPAL_PMI_ERROR(rc, "PMI_KVS_Put");
|
|
return OPAL_ERROR;
|
|
}
|
|
free(pmidata);
|
|
free(pmikey);
|
|
return OPAL_SUCCESS;
|
|
}
|
|
|
|
static int store_pointer(const opal_identifier_t *proc,
|
|
opal_db_locality_t locality,
|
|
opal_value_t *kv)
|
|
{
|
|
int rc;
|
|
|
|
/* pass internal stores down to someone else */
|
|
if (OPAL_DB_INTERNAL == locality) {
|
|
return OPAL_ERR_TAKE_NEXT_OPTION;
|
|
}
|
|
|
|
/* just push this to PMI */
|
|
if (OPAL_SUCCESS != (rc = store(proc, locality, kv->key, (void*)&kv->data, kv->type))) {
|
|
OPAL_ERROR_LOG(rc);
|
|
}
|
|
return rc;
|
|
}
|
|
|
|
static char* fetch_string(const char *key)
|
|
{
|
|
char *tmp_val, *ptr, *tmpkey;
|
|
int i, nsections;
|
|
char *data;
|
|
|
|
/* create our sandbox */
|
|
tmp_val = (char*)malloc(pmi_vallen_max * sizeof(char));
|
|
|
|
/* the first section of the string has the original key, so fetch it */
|
|
if (PMI_SUCCESS != kvs_get(key, tmp_val, pmi_vallen_max)) {
|
|
OPAL_ERROR_LOG(OPAL_ERR_NOT_FOUND);
|
|
free(tmp_val);
|
|
return NULL;
|
|
}
|
|
|
|
OPAL_OUTPUT_VERBOSE((5, opal_db_base_framework.framework_output,
|
|
"db:pmi:fetch_string: received key %s DATA %s",
|
|
key, tmp_val));
|
|
|
|
/* the data in this section was prepended with the number of sections
|
|
* required to hold the entire string - get it
|
|
*/
|
|
ptr = strchr(tmp_val, ':');
|
|
*ptr = '\0';
|
|
nsections = strtol(tmp_val, NULL, 10);
|
|
/* save the actual data */
|
|
ptr++;
|
|
data = strdup(ptr);
|
|
|
|
/* get any remaining sections */
|
|
for (i=1; i < nsections; i++) {
|
|
/* create the key */
|
|
asprintf(&tmpkey, "%s:%d", key, i);
|
|
/* fetch it */
|
|
if (PMI_SUCCESS != kvs_get(tmpkey, tmp_val, pmi_vallen_max)) {
|
|
OPAL_ERROR_LOG(OPAL_ERR_NOT_FOUND);
|
|
free(tmp_val);
|
|
free(tmpkey);
|
|
free(data);
|
|
return NULL;
|
|
}
|
|
OPAL_OUTPUT_VERBOSE((5, opal_db_base_framework.framework_output,
|
|
"db:pmi:fetch_string: received key %s DATA %s",
|
|
tmpkey, tmp_val));
|
|
|
|
/* add it to our data */
|
|
asprintf(&ptr, "%s%s", data, tmp_val);
|
|
free(data);
|
|
data = ptr;
|
|
/* cleanup */
|
|
free(tmpkey);
|
|
}
|
|
|
|
/* cleanup */
|
|
free(tmp_val);
|
|
|
|
#if WANT_CRAY_PMI2_EXT
|
|
{
|
|
/* the blasted Cray PMI implementation marked a number of common
|
|
* ASCII characters as "illegal", so if we are on one of those
|
|
* machines, then replaced those characters with something
|
|
* else - now recover them
|
|
*/
|
|
size_t n, k;
|
|
char *tmp;
|
|
char conv[2];
|
|
|
|
/* first, count how many characters were replaced - since Cray
|
|
* is the source of the trouble, we only make this slow for them!
|
|
*/
|
|
ptr = data;
|
|
i=0;
|
|
while (NULL != (tmp = strchr(ptr, escape_char))) {
|
|
i++;
|
|
ptr = tmp;
|
|
ptr++;
|
|
}
|
|
/* shrink the string */
|
|
ptr = (char*)malloc(sizeof(char) * (1 + strlen(data) - i));
|
|
/* now construct it */
|
|
k=0;
|
|
conv[1] = '\0';
|
|
for (n=0; n < strlen(data); n++) {
|
|
if (escape_char == data[n]) {
|
|
/* the next character tells us which character
|
|
* was subbed out
|
|
*/
|
|
n++;
|
|
conv[0] = data[n];
|
|
i = strtol(conv, NULL, 10);
|
|
ptr[k++] = illegal[i];
|
|
} else {
|
|
ptr[k++] = data[n];
|
|
}
|
|
}
|
|
/* pass the result */
|
|
free(data);
|
|
data = ptr;
|
|
}
|
|
#endif
|
|
|
|
return data;
|
|
}
|
|
|
|
static int fetch(const opal_identifier_t *uid,
|
|
const char *key, void **data, opal_data_type_t type)
|
|
{
|
|
opal_byte_object_t *boptr;
|
|
uint16_t ui16;
|
|
uint32_t ui32;
|
|
int ival;
|
|
unsigned int uival;
|
|
char *pmikey;
|
|
char tmp_val[1024];
|
|
size_t sval;
|
|
opal_identifier_t proc;
|
|
|
|
/* to protect alignment, copy the data across */
|
|
memcpy(&proc, uid, sizeof(opal_identifier_t));
|
|
|
|
OPAL_OUTPUT_VERBOSE((5, opal_db_base_framework.framework_output,
|
|
"db:pmi:fetch: searching for key %s[%s] on proc %" PRIu64 "",
|
|
(NULL == key) ? "NULL" : key,
|
|
opal_dss.lookup_data_type(type), proc));
|
|
|
|
/* if the key is NULL, that is an error */
|
|
if (NULL == key) {
|
|
OPAL_ERROR_LOG(OPAL_ERR_BAD_PARAM);
|
|
return OPAL_ERR_BAD_PARAM;
|
|
}
|
|
|
|
/* setup the key */
|
|
if (NULL == (pmikey = setup_key(proc, key))) {
|
|
OPAL_ERROR_LOG(OPAL_ERR_BAD_PARAM);
|
|
return OPAL_ERR_BAD_PARAM;
|
|
}
|
|
|
|
/* check to see if they are looking for a string */
|
|
if (OPAL_STRING == type) {
|
|
/* might have been passed in multiple sections */
|
|
*data = fetch_string(pmikey);
|
|
free(pmikey);
|
|
return OPAL_SUCCESS;
|
|
}
|
|
|
|
/* otherwise, retrieve the pmi keyval */
|
|
if (NULL == (pmikey = setup_key(proc, key))) {
|
|
OPAL_ERROR_LOG(OPAL_ERR_BAD_PARAM);
|
|
return OPAL_ERR_BAD_PARAM;
|
|
}
|
|
if (PMI_SUCCESS != kvs_get(pmikey, tmp_val, pmi_vallen_max)) {
|
|
OPAL_ERROR_LOG(OPAL_ERR_NOT_FOUND);
|
|
free(pmikey);
|
|
return OPAL_ERR_NOT_FOUND;
|
|
}
|
|
free(pmikey);
|
|
|
|
/* return the value according to the provided type */
|
|
switch (type) {
|
|
case OPAL_UINT32:
|
|
ui32 = (uint32_t)strtoul(tmp_val, NULL, 10);
|
|
memcpy(*data, &ui32, sizeof(uint32_t));
|
|
break;
|
|
case OPAL_UINT16:
|
|
ui16 = (uint16_t)strtoul(tmp_val, NULL, 10);
|
|
memcpy(*data, &ui16, sizeof(uint16_t));
|
|
break;
|
|
case OPAL_INT:
|
|
ival = (int)strtol(tmp_val, NULL, 10);
|
|
memcpy(*data, &ival, sizeof(int));
|
|
break;
|
|
case OPAL_UINT:
|
|
uival = (unsigned int)strtoul(tmp_val, NULL, 10);
|
|
memcpy(*data, &uival, sizeof(unsigned int));
|
|
break;
|
|
case OPAL_BYTE_OBJECT:
|
|
sval = 0;
|
|
boptr = (opal_byte_object_t*)malloc(sizeof(opal_byte_object_t));
|
|
boptr->bytes = (uint8_t*)pmi_decode(tmp_val, &sval);
|
|
boptr->size = sval;
|
|
*data = boptr;
|
|
break;
|
|
default:
|
|
OPAL_ERROR_LOG(OPAL_ERR_NOT_SUPPORTED);
|
|
return OPAL_ERR_NOT_SUPPORTED;
|
|
}
|
|
|
|
return OPAL_SUCCESS;
|
|
}
|
|
|
|
/* the only current use for fetch_pointer is to retrieve the
|
|
* hostname for the process - so don't worry about other uses
|
|
* here just yet
|
|
*/
|
|
static int fetch_pointer(const opal_identifier_t *proc,
|
|
const char *key,
|
|
void **data, opal_data_type_t type)
|
|
{
|
|
/* has to be provided from local storage */
|
|
return OPAL_ERR_TAKE_NEXT_OPTION;
|
|
}
|
|
|
|
static int fetch_multiple(const opal_identifier_t *proc,
|
|
const char *key,
|
|
opal_list_t *kvs)
|
|
{
|
|
|
|
return OPAL_ERR_NOT_SUPPORTED;
|
|
}
|
|
|
|
static int remove_data(const opal_identifier_t *proc, const char *key)
|
|
{
|
|
/* nothing to do here */
|
|
return OPAL_SUCCESS;
|
|
}
|
|
|
|
static int setup_pmi(void)
|
|
{
|
|
int max_length, rc;
|
|
|
|
#if WANT_CRAY_PMI2_EXT
|
|
pmi_vallen_max = PMI2_MAX_VALLEN;
|
|
#else
|
|
rc = PMI_KVS_Get_value_length_max(&pmi_vallen_max);
|
|
if (PMI_SUCCESS != rc) {
|
|
OPAL_PMI_ERROR(rc, "PMI_Get_value_length_max");
|
|
return OPAL_ERROR;
|
|
}
|
|
#endif
|
|
|
|
#if WANT_CRAY_PMI2_EXT
|
|
/* TODO -- is this ok */
|
|
max_length = 1024;
|
|
#else
|
|
if (PMI_SUCCESS != (rc = PMI_KVS_Get_name_length_max(&max_length))) {
|
|
OPAL_PMI_ERROR(rc, "PMI_KVS_Get_name_length_max");
|
|
return OPAL_ERROR;
|
|
}
|
|
#endif
|
|
pmi_kvs_name = (char*)malloc(max_length);
|
|
if (NULL == pmi_kvs_name) {
|
|
return OPAL_ERR_OUT_OF_RESOURCE;
|
|
}
|
|
|
|
#if WANT_CRAY_PMI2_EXT
|
|
rc = PMI2_Job_GetId(pmi_kvs_name, max_length);
|
|
#else
|
|
rc = PMI_KVS_Get_my_name(pmi_kvs_name,max_length);
|
|
#endif
|
|
if (PMI_SUCCESS != rc) {
|
|
OPAL_PMI_ERROR(rc, "PMI_KVS_Get_my_name");
|
|
return OPAL_ERROR;
|
|
}
|
|
|
|
#if WANT_CRAY_PMI2_EXT
|
|
pmi_keylen_max = PMI2_MAX_KEYLEN;
|
|
#else
|
|
if (PMI_SUCCESS != (rc = PMI_KVS_Get_key_length_max(&pmi_keylen_max))) {
|
|
OPAL_PMI_ERROR(rc, "PMI_KVS_Get_key_length_max");
|
|
return OPAL_ERROR;
|
|
}
|
|
#endif
|
|
|
|
return OPAL_SUCCESS;
|
|
}
|
|
|
|
static char* setup_key(opal_identifier_t name, const char *key)
|
|
{
|
|
char *pmi_kvs_key;
|
|
|
|
if (pmi_keylen_max <= asprintf(&pmi_kvs_key, "%" PRIu64 "-%s",
|
|
name, key)) {
|
|
free(pmi_kvs_key);
|
|
return NULL;
|
|
}
|
|
|
|
return pmi_kvs_key;
|
|
}
|
|
|
|
static inline unsigned char pmi_base64_encsym (unsigned char value) {
|
|
assert (value < 64);
|
|
|
|
if (value < 26) {
|
|
return 'A' + value;
|
|
} else if (value < 52) {
|
|
return 'a' + (value - 26);
|
|
} else if (value < 62) {
|
|
return '0' + (value - 52);
|
|
}
|
|
|
|
return (62 == value) ? '+' : '/';
|
|
}
|
|
|
|
static inline unsigned char pmi_base64_decsym (unsigned char value) {
|
|
if ('+' == value) {
|
|
return 62;
|
|
} else if ('/' == value) {
|
|
return 63;
|
|
} else if (' ' == value) {
|
|
return 64;
|
|
} else if (value <= '9') {
|
|
return (value - '0') + 52;
|
|
} else if (value <= 'Z') {
|
|
return (value - 'A');
|
|
} else if (value <= 'z') {
|
|
return (value - 'a') + 26;
|
|
}
|
|
|
|
return 64;
|
|
}
|
|
|
|
static inline void pmi_base64_encode_block (unsigned char in[3], unsigned char out[4], int len) {
|
|
out[0] = pmi_base64_encsym (in[0] >> 2);
|
|
out[1] = pmi_base64_encsym (((in[0] & 0x03) << 4) | ((in[1] & 0xf0) >> 4));
|
|
/* Cray PMI doesn't allow = in PMI attributes so pad with spaces */
|
|
out[2] = 1 < len ? pmi_base64_encsym(((in[1] & 0x0f) << 2) | ((in[2] & 0xc0) >> 6)) : ' ';
|
|
out[3] = 2 < len ? pmi_base64_encsym(in[2] & 0x3f) : ' ';
|
|
}
|
|
|
|
static inline int pmi_base64_decode_block (unsigned char in[4], unsigned char out[3]) {
|
|
char in_dec[4];
|
|
|
|
in_dec[0] = pmi_base64_decsym (in[0]);
|
|
in_dec[1] = pmi_base64_decsym (in[1]);
|
|
in_dec[2] = pmi_base64_decsym (in[2]);
|
|
in_dec[3] = pmi_base64_decsym (in[3]);
|
|
|
|
out[0] = in_dec[0] << 2 | in_dec[1] >> 4;
|
|
if (64 == in_dec[2]) {
|
|
return 1;
|
|
}
|
|
|
|
out[1] = in_dec[1] << 4 | in_dec[2] >> 2;
|
|
if (64 == in_dec[3]) {
|
|
return 2;
|
|
}
|
|
|
|
out[2] = ((in_dec[2] << 6) & 0xc0) | in_dec[3];
|
|
return 3;
|
|
}
|
|
|
|
|
|
/* PMI only supports strings. For now, do a simple base16
|
|
* encoding. Should do something smarter, both with the
|
|
* algorith used and its implementation. */
|
|
static int pmi_encode(char *outdata, const void *val, size_t vallen) {
|
|
unsigned char *tmp = (unsigned char*)outdata;
|
|
size_t i;
|
|
|
|
/* check for size */
|
|
if ((size_t)pmi_vallen_max < (2 + vallen * 4) / 3 + 1) {
|
|
return OPAL_ERR_BAD_PARAM;
|
|
}
|
|
|
|
for (i = 0 ; i < vallen ; i += 3, tmp += 4) {
|
|
pmi_base64_encode_block((unsigned char *) val + i, tmp, vallen - i);
|
|
}
|
|
|
|
tmp[0] = (unsigned char)'\0';
|
|
|
|
return OPAL_SUCCESS;
|
|
}
|
|
|
|
static uint8_t* pmi_decode (char *data, size_t *retlen) {
|
|
size_t input_len = strlen (data) / 4;
|
|
unsigned char *ret, *val;
|
|
int out_len;
|
|
size_t i;
|
|
|
|
/* default */
|
|
*retlen = 0;
|
|
|
|
ret = calloc (1, 3 * input_len + 1);
|
|
if (NULL == ret) {
|
|
return ret;
|
|
}
|
|
|
|
val = (unsigned char *) data;
|
|
for (i = 0, out_len = 0 ; i < input_len ; i++, val += 4) {
|
|
out_len += pmi_base64_decode_block(val, ret + 3 * i);
|
|
}
|
|
|
|
ret[out_len] = '\0';
|
|
*retlen = out_len;
|
|
return ret;
|
|
}
|