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// -*- mode:C++; tab-width:8; c-basic-offset:2; indent-tabs-mode:t -*-
// vim: ts=8 sw=2 smarttab
#include <cstdarg>
#include "common/ceph_context.h"
#include "common/ceph_releases.h"
#include "common/config.h"
#include "common/debug.h"
#include "objclass/objclass.h"
#include "osd/ClassHandler.h"
#include "auth/Crypto.h"
#include "common/armor.h"
#define dout_context ClassHandler::get_instance().cct
static constexpr int dout_subsys = ceph_subsys_objclass;
void *cls_alloc(size_t size)
{
return malloc(size);
}
void cls_free(void *p)
{
free(p);
}
int cls_register(const char *name, cls_handle_t *handle)
{
ClassHandler::ClassData *cls = \
ClassHandler::get_instance().register_class(name);
*handle = (cls_handle_t)cls;
return (cls != NULL);
}
int cls_unregister(cls_handle_t handle)
{
ClassHandler::ClassData *cls = (ClassHandler::ClassData *)handle;
ClassHandler::get_instance().unregister_class(cls);
return 1;
}
int cls_register_method(cls_handle_t hclass, const char *method,
int flags,
cls_method_call_t class_call, cls_method_handle_t *handle)
{
if (!(flags & (CLS_METHOD_RD | CLS_METHOD_WR)))
return -EINVAL;
ClassHandler::ClassData *cls = (ClassHandler::ClassData *)hclass;
cls_method_handle_t hmethod =(cls_method_handle_t)cls->register_method(method, flags, class_call);
if (handle)
*handle = hmethod;
return (hmethod != NULL);
}
int cls_register_cxx_method(cls_handle_t hclass, const char *method,
int flags,
cls_method_cxx_call_t class_call, cls_method_handle_t *handle)
{
ClassHandler::ClassData *cls = (ClassHandler::ClassData *)hclass;
cls_method_handle_t hmethod = (cls_method_handle_t)cls->register_cxx_method(method, flags, class_call);
if (handle)
*handle = hmethod;
return (hmethod != NULL);
}
int cls_unregister_method(cls_method_handle_t handle)
{
ClassHandler::ClassMethod *method = (ClassHandler::ClassMethod *)handle;
method->unregister();
return 1;
}
int cls_register_cxx_filter(cls_handle_t hclass,
const std::string &filter_name,
cls_cxx_filter_factory_t fn,
cls_filter_handle_t *handle)
{
ClassHandler::ClassData *cls = (ClassHandler::ClassData *)hclass;
cls_filter_handle_t hfilter = (cls_filter_handle_t)cls->register_cxx_filter(filter_name, fn);
if (handle) {
*handle = hfilter;
}
return (hfilter != NULL);
}
void cls_unregister_filter(cls_filter_handle_t handle)
{
ClassHandler::ClassFilter *filter = (ClassHandler::ClassFilter *)handle;
filter->unregister();
}
int cls_cxx_read(cls_method_context_t hctx, int ofs, int len,
ceph::buffer::list *outbl)
{
return cls_cxx_read2(hctx, ofs, len, outbl, 0);
}
int cls_cxx_write(cls_method_context_t hctx, int ofs, int len,
ceph::buffer::list *inbl)
{
return cls_cxx_write2(hctx, ofs, len, inbl, 0);
}
int cls_gen_random_bytes(char *buf, int size)
{
ClassHandler::get_instance().cct->random()->get_bytes(buf, size);
return 0;
}
int cls_gen_rand_base64(char *dest, int size) /* size should be the required string size + 1 */
{
char buf[size];
char tmp_dest[size + 4]; /* so that there's space for the extra '=' characters, and some */
int ret;
ret = cls_gen_random_bytes(buf, sizeof(buf));
if (ret < 0) {
derr << "cannot get random bytes: " << ret << dendl;
return -1;
}
ret = ceph_armor(tmp_dest, &tmp_dest[sizeof(tmp_dest)],
(const char *)buf, ((const char *)buf) + ((size - 1) * 3 + 4 - 1) / 4);
if (ret < 0) {
derr << "ceph_armor failed" << dendl;
return -1;
}
tmp_dest[ret] = '\0';
memcpy(dest, tmp_dest, size);
dest[size-1] = '\0';
return 0;
}
void cls_cxx_subop_version(cls_method_context_t hctx, std::string *s)
{
if (!s)
return;
char buf[32];
uint64_t ver = cls_current_version(hctx);
int subop_num = cls_current_subop_num(hctx);
snprintf(buf, sizeof(buf), "%lld.%d", (long long)ver, subop_num);
*s = buf;
}
int cls_log(int level, const char *format, ...)
{
int size = 256;
va_list ap;
while (1) {
char buf[size];
va_start(ap, format);
int n = vsnprintf(buf, size, format, ap);
va_end(ap);
#define MAX_SIZE 8196
if ((n > -1 && n < size) || size > MAX_SIZE) {
dout(ceph::dout::need_dynamic(level)) << buf << dendl;
return n;
}
size *= 2;
}
}
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