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// -*- mode:C++; tab-width:8; c-basic-offset:2; indent-tabs-mode:t -*-
// vim: ts=8 sw=2 smarttab
#include "common/config.h"
#include "common/debug.h"
#include "objclass/objclass.h"
#include "osd/ReplicatedPG.h"
#include "osd/ClassHandler.h"
#include "auth/Crypto.h"
#include "common/armor.h"
static ClassHandler *ch;
#define dout_subsys ceph_subsys_objclass
void cls_initialize(ClassHandler *h)
{
ch = h;
}
void cls_finalize()
{
ch = NULL;
}
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 = ch->register_class(name);
*handle = (cls_handle_t)cls;
return (cls != NULL);
}
int cls_unregister(cls_handle_t handle)
{
ClassHandler::ClassData *cls = (ClassHandler::ClassData *)handle;
ch->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_call(cls_method_context_t hctx, const char *cls, const char *method,
char *indata, int datalen,
char **outdata, int *outdatalen)
{
ReplicatedPG::OpContext **pctx = (ReplicatedPG::OpContext **)hctx;
bufferlist idata;
vector<OSDOp> nops(1);
OSDOp& op = nops[0];
int r;
op.op.op = CEPH_OSD_OP_CALL;
op.op.cls.class_len = strlen(cls);
op.op.cls.method_len = strlen(method);
op.op.cls.indata_len = datalen;
op.indata.append(cls, op.op.cls.class_len);
op.indata.append(method, op.op.cls.method_len);
op.indata.append(indata, datalen);
r = (*pctx)->pg->do_osd_ops(*pctx, nops);
*outdata = (char *)malloc(op.outdata.length());
if (!*outdata)
return -ENOMEM;
memcpy(*outdata, op.outdata.c_str(), op.outdata.length());
*outdatalen = op.outdata.length();
return r;
}
int cls_getxattr(cls_method_context_t hctx, const char *name,
char **outdata, int *outdatalen)
{
ReplicatedPG::OpContext **pctx = (ReplicatedPG::OpContext **)hctx;
bufferlist name_data;
vector<OSDOp> nops(1);
OSDOp& op = nops[0];
int r;
op.op.op = CEPH_OSD_OP_GETXATTR;
op.indata.append(name);
op.op.xattr.name_len = strlen(name);
r = (*pctx)->pg->do_osd_ops(*pctx, nops);
*outdata = (char *)malloc(op.outdata.length());
if (!*outdata)
return -ENOMEM;
memcpy(*outdata, op.outdata.c_str(), op.outdata.length());
*outdatalen = op.outdata.length();
return r;
}
int cls_setxattr(cls_method_context_t hctx, const char *name,
const char *value, int val_len)
{
ReplicatedPG::OpContext **pctx = (ReplicatedPG::OpContext **)hctx;
bufferlist name_data;
vector<OSDOp> nops(1);
OSDOp& op = nops[0];
int r;
op.op.op = CEPH_OSD_OP_SETXATTR;
op.indata.append(name);
op.indata.append(value);
op.op.xattr.name_len = strlen(name);
op.op.xattr.value_len = val_len;
r = (*pctx)->pg->do_osd_ops(*pctx, nops);
return r;
}
int cls_read(cls_method_context_t hctx, int ofs, int len,
char **outdata, int *outdatalen)
{
ReplicatedPG::OpContext **pctx = (ReplicatedPG::OpContext **)hctx;
vector<OSDOp> ops(1);
ops[0].op.op = CEPH_OSD_OP_SYNC_READ;
ops[0].op.extent.offset = ofs;
ops[0].op.extent.length = len;
int r = (*pctx)->pg->do_osd_ops(*pctx, ops);
*outdata = (char *)malloc(ops[0].outdata.length());
if (!*outdata)
return -ENOMEM;
memcpy(*outdata, ops[0].outdata.c_str(), ops[0].outdata.length());
*outdatalen = ops[0].outdata.length();
if (r < 0)
return r;
return *outdatalen;
}
int cls_get_request_origin(cls_method_context_t hctx, entity_inst_t *origin)
{
ReplicatedPG::OpContext **pctx = static_cast<ReplicatedPG::OpContext **>(hctx);
*origin = (*pctx)->op->get_req()->get_orig_source_inst();
return 0;
}
int cls_cxx_create(cls_method_context_t hctx, bool exclusive)
{
ReplicatedPG::OpContext **pctx = (ReplicatedPG::OpContext **)hctx;
vector<OSDOp> ops(1);
ops[0].op.op = CEPH_OSD_OP_CREATE;
ops[0].op.flags = (exclusive ? CEPH_OSD_OP_FLAG_EXCL : 0);
return (*pctx)->pg->do_osd_ops(*pctx, ops);
}
int cls_cxx_remove(cls_method_context_t hctx)
{
ReplicatedPG::OpContext **pctx = (ReplicatedPG::OpContext **)hctx;
vector<OSDOp> ops(1);
ops[0].op.op = CEPH_OSD_OP_DELETE;
return (*pctx)->pg->do_osd_ops(*pctx, ops);
}
int cls_cxx_stat(cls_method_context_t hctx, uint64_t *size, time_t *mtime)
{
ReplicatedPG::OpContext **pctx = (ReplicatedPG::OpContext **)hctx;
vector<OSDOp> ops(1);
int ret;
ops[0].op.op = CEPH_OSD_OP_STAT;
ret = (*pctx)->pg->do_osd_ops(*pctx, ops);
if (ret < 0)
return ret;
bufferlist::iterator iter = ops[0].outdata.begin();
utime_t ut;
uint64_t s;
try {
::decode(s, iter);
::decode(ut, iter);
} catch (buffer::error& err) {
return -EIO;
}
if (size)
*size = s;
if (mtime)
*mtime = ut.sec();
return 0;
}
int cls_cxx_read(cls_method_context_t hctx, int ofs, int len, bufferlist *outbl)
{
ReplicatedPG::OpContext **pctx = (ReplicatedPG::OpContext **)hctx;
vector<OSDOp> ops(1);
int ret;
ops[0].op.op = CEPH_OSD_OP_SYNC_READ;
ops[0].op.extent.offset = ofs;
ops[0].op.extent.length = len;
ret = (*pctx)->pg->do_osd_ops(*pctx, ops);
if (ret < 0)
return ret;
outbl->claim(ops[0].outdata);
return outbl->length();
}
int cls_cxx_write(cls_method_context_t hctx, int ofs, int len, bufferlist *inbl)
{
ReplicatedPG::OpContext **pctx = (ReplicatedPG::OpContext **)hctx;
vector<OSDOp> ops(1);
ops[0].op.op = CEPH_OSD_OP_WRITE;
ops[0].op.extent.offset = ofs;
ops[0].op.extent.length = len;
ops[0].indata = *inbl;
return (*pctx)->pg->do_osd_ops(*pctx, ops);
}
int cls_cxx_write_full(cls_method_context_t hctx, bufferlist *inbl)
{
ReplicatedPG::OpContext **pctx = (ReplicatedPG::OpContext **)hctx;
vector<OSDOp> ops(1);
ops[0].op.op = CEPH_OSD_OP_WRITEFULL;
ops[0].op.extent.offset = 0;
ops[0].op.extent.length = inbl->length();
ops[0].indata = *inbl;
return (*pctx)->pg->do_osd_ops(*pctx, ops);
}
int cls_cxx_replace(cls_method_context_t hctx, int ofs, int len, bufferlist *inbl)
{
ReplicatedPG::OpContext **pctx = (ReplicatedPG::OpContext **)hctx;
vector<OSDOp> ops(2);
ops[0].op.op = CEPH_OSD_OP_TRUNCATE;
ops[0].op.extent.offset = 0;
ops[0].op.extent.length = 0;
ops[1].op.op = CEPH_OSD_OP_WRITE;
ops[1].op.extent.offset = ofs;
ops[1].op.extent.length = len;
ops[1].indata = *inbl;
return (*pctx)->pg->do_osd_ops(*pctx, ops);
}
int cls_cxx_getxattr(cls_method_context_t hctx, const char *name,
bufferlist *outbl)
{
ReplicatedPG::OpContext **pctx = (ReplicatedPG::OpContext **)hctx;
bufferlist name_data;
vector<OSDOp> nops(1);
OSDOp& op = nops[0];
int r;
op.op.op = CEPH_OSD_OP_GETXATTR;
op.indata.append(name);
op.op.xattr.name_len = strlen(name);
r = (*pctx)->pg->do_osd_ops(*pctx, nops);
if (r < 0)
return r;
outbl->claim(op.outdata);
return outbl->length();
}
int cls_cxx_getxattrs(cls_method_context_t hctx, map<string, bufferlist> *attrset)
{
ReplicatedPG::OpContext **pctx = (ReplicatedPG::OpContext **)hctx;
vector<OSDOp> nops(1);
OSDOp& op = nops[0];
int r;
op.op.op = CEPH_OSD_OP_GETXATTRS;
r = (*pctx)->pg->do_osd_ops(*pctx, nops);
if (r < 0)
return r;
bufferlist::iterator iter = op.outdata.begin();
try {
::decode(*attrset, iter);
} catch (buffer::error& err) {
return -EIO;
}
return 0;
}
int cls_cxx_setxattr(cls_method_context_t hctx, const char *name,
bufferlist *inbl)
{
ReplicatedPG::OpContext **pctx = (ReplicatedPG::OpContext **)hctx;
bufferlist name_data;
vector<OSDOp> nops(1);
OSDOp& op = nops[0];
int r;
op.op.op = CEPH_OSD_OP_SETXATTR;
op.indata.append(name);
op.indata.append(*inbl);
op.op.xattr.name_len = strlen(name);
op.op.xattr.value_len = inbl->length();
r = (*pctx)->pg->do_osd_ops(*pctx, nops);
return r;
}
int cls_cxx_snap_revert(cls_method_context_t hctx, snapid_t snapid)
{
ReplicatedPG::OpContext **pctx = (ReplicatedPG::OpContext **)hctx;
vector<OSDOp> ops(1);
ops[0].op.op = CEPH_OSD_OP_ROLLBACK;
ops[0].op.snap.snapid = snapid;
return (*pctx)->pg->do_osd_ops(*pctx, ops);
}
int cls_cxx_map_get_all_vals(cls_method_context_t hctx, map<string, bufferlist>* vals)
{
ReplicatedPG::OpContext **pctx = (ReplicatedPG::OpContext **)hctx;
vector<OSDOp> ops(1);
OSDOp& op = ops[0];
int ret;
string start_after;
string filter_prefix;
uint64_t max = (uint64_t)-1;
bufferlist inbl;
::encode(start_after, op.indata);
::encode(max, op.indata);
::encode(filter_prefix, op.indata);
op.op.op = CEPH_OSD_OP_OMAPGETVALS;
ret = (*pctx)->pg->do_osd_ops(*pctx, ops);
if (ret < 0)
return ret;
bufferlist::iterator iter = op.outdata.begin();
try {
::decode(*vals, iter);
} catch (buffer::error& err) {
return -EIO;
}
return vals->size();
}
int cls_cxx_map_get_keys(cls_method_context_t hctx, const string &start_obj,
uint64_t max_to_get, set<string> *keys)
{
ReplicatedPG::OpContext **pctx = (ReplicatedPG::OpContext **)hctx;
vector<OSDOp> ops(1);
OSDOp& op = ops[0];
int ret;
::encode(start_obj, op.indata);
::encode(max_to_get, op.indata);
op.op.op = CEPH_OSD_OP_OMAPGETKEYS;
ret = (*pctx)->pg->do_osd_ops(*pctx, ops);
if (ret < 0)
return ret;
bufferlist::iterator iter = op.outdata.begin();
try {
::decode(*keys, iter);
} catch (buffer::error& err) {
return -EIO;
}
return keys->size();
}
int cls_cxx_map_get_vals(cls_method_context_t hctx, const string &start_obj,
const string &filter_prefix, uint64_t max_to_get,
map<string, bufferlist> *vals)
{
ReplicatedPG::OpContext **pctx = (ReplicatedPG::OpContext **)hctx;
vector<OSDOp> ops(1);
OSDOp& op = ops[0];
int ret;
bufferlist inbl;
::encode(start_obj, op.indata);
::encode(max_to_get, op.indata);
::encode(filter_prefix, op.indata);
op.op.op = CEPH_OSD_OP_OMAPGETVALS;
ret = (*pctx)->pg->do_osd_ops(*pctx, ops);
if (ret < 0)
return ret;
bufferlist::iterator iter = op.outdata.begin();
try {
::decode(*vals, iter);
} catch (buffer::error& err) {
return -EIO;
}
return vals->size();
}
int cls_cxx_map_read_header(cls_method_context_t hctx, bufferlist *outbl)
{
ReplicatedPG::OpContext **pctx = (ReplicatedPG::OpContext **)hctx;
vector<OSDOp> ops(1);
OSDOp& op = ops[0];
int ret;
op.op.op = CEPH_OSD_OP_OMAPGETHEADER;
ret = (*pctx)->pg->do_osd_ops(*pctx, ops);
if (ret < 0)
return ret;
outbl->claim(op.outdata);
return 0;
}
int cls_cxx_map_get_val(cls_method_context_t hctx, const string &key,
bufferlist *outbl)
{
ReplicatedPG::OpContext **pctx = (ReplicatedPG::OpContext **)hctx;
vector<OSDOp> ops(1);
OSDOp& op = ops[0];
int ret;
set<string> k;
k.insert(key);
::encode(k, op.indata);
op.op.op = CEPH_OSD_OP_OMAPGETVALSBYKEYS;
ret = (*pctx)->pg->do_osd_ops(*pctx, ops);
if (ret < 0)
return ret;
bufferlist::iterator iter = op.outdata.begin();
try {
map<string, bufferlist> m;
::decode(m, iter);
map<string, bufferlist>::iterator iter = m.begin();
if (iter == m.end())
return -ENOENT;
*outbl = iter->second;
} catch (buffer::error& e) {
return -EIO;
}
return 0;
}
int cls_cxx_map_set_val(cls_method_context_t hctx, const string &key,
bufferlist *inbl)
{
ReplicatedPG::OpContext **pctx = (ReplicatedPG::OpContext **)hctx;
vector<OSDOp> ops(1);
OSDOp& op = ops[0];
bufferlist& update_bl = op.indata;
map<string, bufferlist> m;
m[key] = *inbl;
::encode(m, update_bl);
op.op.op = CEPH_OSD_OP_OMAPSETVALS;
return (*pctx)->pg->do_osd_ops(*pctx, ops);
}
int cls_cxx_map_set_vals(cls_method_context_t hctx,
const std::map<string, bufferlist> *map)
{
ReplicatedPG::OpContext **pctx = (ReplicatedPG::OpContext **)hctx;
vector<OSDOp> ops(1);
OSDOp& op = ops[0];
bufferlist& update_bl = op.indata;
::encode(*map, update_bl);
op.op.op = CEPH_OSD_OP_OMAPSETVALS;
return (*pctx)->pg->do_osd_ops(*pctx, ops);
}
int cls_cxx_map_clear(cls_method_context_t hctx)
{
ReplicatedPG::OpContext **pctx = (ReplicatedPG::OpContext **)hctx;
vector<OSDOp> ops(1);
OSDOp& op = ops[0];
op.op.op = CEPH_OSD_OP_OMAPCLEAR;
return (*pctx)->pg->do_osd_ops(*pctx, ops);
}
int cls_cxx_map_write_header(cls_method_context_t hctx, bufferlist *inbl)
{
ReplicatedPG::OpContext **pctx = (ReplicatedPG::OpContext **)hctx;
vector<OSDOp> ops(1);
OSDOp& op = ops[0];
op.indata.claim(*inbl);
op.op.op = CEPH_OSD_OP_OMAPSETHEADER;
return (*pctx)->pg->do_osd_ops(*pctx, ops);
}
int cls_cxx_map_remove_key(cls_method_context_t hctx, const string &key)
{
ReplicatedPG::OpContext **pctx = (ReplicatedPG::OpContext **)hctx;
vector<OSDOp> ops(1);
OSDOp& op = ops[0];
bufferlist& update_bl = op.indata;
set<string> to_rm;
to_rm.insert(key);
::encode(to_rm, update_bl);
op.op.op = CEPH_OSD_OP_OMAPRMKEYS;
return (*pctx)->pg->do_osd_ops(*pctx, ops);
}
int cls_gen_random_bytes(char *buf, int size)
{
return get_random_bytes(buf, size);
}
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) {
generic_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) {
generic_derr << "ceph_armor failed" << dendl;
return -1;
}
tmp_dest[ret] = '\0';
memcpy(dest, tmp_dest, size);
dest[size] = '\0';
return 0;
}
uint64_t cls_current_version(cls_method_context_t hctx)
{
ReplicatedPG::OpContext *ctx = *(ReplicatedPG::OpContext **)hctx;
return ctx->pg->info.last_user_version;
}
int cls_current_subop_num(cls_method_context_t hctx)
{
ReplicatedPG::OpContext *ctx = *(ReplicatedPG::OpContext **)hctx;
return ctx->current_osd_subop_num;
}
void cls_cxx_subop_version(cls_method_context_t hctx, 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(level) << buf << dendl;
return n;
}
size *= 2;
}
}