167 lines
9.9 KiB
C++
167 lines
9.9 KiB
C++
// Copyright (c) Vitaliy Filippov, 2019+
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// License: VNPL-1.1 (see README.md for details)
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//
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// NFS proxy over VitastorKV database - FSSTAT, FSINFO, PATHCONF
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#include <sys/time.h>
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#include "nfs_proxy.h"
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#include "nfs_kv.h"
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// Get file system statistics
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int kv_nfs3_fsstat_proc(void *opaque, rpc_op_t *rop)
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{
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nfs_client_t *self = (nfs_client_t*)opaque;
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//FSSTAT3args *args = (FSSTAT3args*)rop->request;
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if (self->parent->trace)
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fprintf(stderr, "[%d] FSSTAT\n", self->nfs_fd);
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FSSTAT3res *reply = (FSSTAT3res*)rop->reply;
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uint64_t tbytes = 0, fbytes = 0;
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auto pst_it = self->parent->pool_stats.find(self->parent->default_pool_id);
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if (pst_it != self->parent->pool_stats.end())
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{
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auto ttb = pst_it->second["total_raw_tb"].number_value();
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auto ftb = (pst_it->second["total_raw_tb"].number_value() - pst_it->second["used_raw_tb"].number_value());
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tbytes = ttb / pst_it->second["raw_to_usable"].number_value() * ((uint64_t)2<<40);
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fbytes = ftb / pst_it->second["raw_to_usable"].number_value() * ((uint64_t)2<<40);
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}
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*reply = (FSSTAT3res){
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.status = NFS3_OK,
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.resok = (FSSTAT3resok){
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.obj_attributes = {
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.attributes_follow = 0,
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//.attributes = get_root_attributes(self),
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},
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.tbytes = tbytes, // total bytes
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.fbytes = fbytes, // free bytes
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.abytes = fbytes, // available bytes
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.tfiles = (size3)(1 << 31), // maximum total files
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.ffiles = (size3)(1 << 31), // free files
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.afiles = (size3)(1 << 31), // available files
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.invarsec = 0,
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},
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};
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rpc_queue_reply(rop);
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return 0;
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}
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int kv_nfs3_fsinfo_proc(void *opaque, rpc_op_t *rop)
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{
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nfs_client_t *self = (nfs_client_t*)opaque;
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FSINFO3args *args = (FSINFO3args*)rop->request;
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FSINFO3res *reply = (FSINFO3res*)rop->reply;
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if (self->parent->trace)
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fprintf(stderr, "[%d] FSINFO %s\n", self->nfs_fd, std::string(args->fsroot).c_str());
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if (args->fsroot != NFS_ROOT_HANDLE)
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{
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*reply = (FSINFO3res){ .status = NFS3ERR_INVAL };
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}
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else
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{
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// Fill info
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*reply = (FSINFO3res){
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.status = NFS3_OK,
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.resok = (FSINFO3resok){
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.obj_attributes = {
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.attributes_follow = 0,
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//.attributes = get_root_attributes(self),
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},
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.rtmax = 128*1024*1024,
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.rtpref = 128*1024*1024,
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.rtmult = 4096,
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.wtmax = 128*1024*1024,
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.wtpref = 128*1024*1024,
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.wtmult = 4096,
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.dtpref = 128,
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.maxfilesize = 0x7fffffffffffffff,
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.time_delta = {
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.seconds = 1,
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.nseconds = 0,
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},
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.properties = FSF3_SYMLINK | FSF3_HOMOGENEOUS,
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},
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};
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}
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rpc_queue_reply(rop);
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return 0;
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}
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int kv_nfs3_pathconf_proc(void *opaque, rpc_op_t *rop)
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{
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nfs_client_t *self = (nfs_client_t*)opaque;
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PATHCONF3args *args = (PATHCONF3args*)rop->request;
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PATHCONF3res *reply = (PATHCONF3res*)rop->reply;
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if (self->parent->trace)
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fprintf(stderr, "[%d] PATHCONF %s\n", self->nfs_fd, std::string(args->object).c_str());
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if (args->object != NFS_ROOT_HANDLE)
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{
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*reply = (PATHCONF3res){ .status = NFS3ERR_INVAL };
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}
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else
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{
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// Fill info
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*reply = (PATHCONF3res){
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.status = NFS3_OK,
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.resok = (PATHCONF3resok){
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.obj_attributes = {
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// Without at least one reference to a non-constant value (local variable or something else),
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// with gcc 8 we get "internal compiler error: side-effects element in no-side-effects CONSTRUCTOR" here
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// FIXME: get rid of this after raising compiler requirement
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.attributes_follow = 0,
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//.attributes = get_root_attributes(self),
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},
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.linkmax = 0,
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.name_max = 255,
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.no_trunc = TRUE,
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.chown_restricted = FALSE,
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.case_insensitive = FALSE,
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.case_preserving = TRUE,
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},
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};
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}
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rpc_queue_reply(rop);
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return 0;
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}
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nfs_client_t::nfs_client_t()
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{
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struct rpc_service_proc_t pt[] = {
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{NFS_PROGRAM, NFS_V3, NFS3_NULL, nfs3_null_proc, NULL, 0, NULL, 0, this},
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{NFS_PROGRAM, NFS_V3, NFS3_GETATTR, kv_nfs3_getattr_proc, (xdrproc_t)xdr_GETATTR3args, sizeof(GETATTR3args), (xdrproc_t)xdr_GETATTR3res, sizeof(GETATTR3res), this},
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{NFS_PROGRAM, NFS_V3, NFS3_SETATTR, kv_nfs3_setattr_proc, (xdrproc_t)xdr_SETATTR3args, sizeof(SETATTR3args), (xdrproc_t)xdr_SETATTR3res, sizeof(SETATTR3res), this},
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{NFS_PROGRAM, NFS_V3, NFS3_LOOKUP, kv_nfs3_lookup_proc, (xdrproc_t)xdr_LOOKUP3args, sizeof(LOOKUP3args), (xdrproc_t)xdr_LOOKUP3res, sizeof(LOOKUP3res), this},
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{NFS_PROGRAM, NFS_V3, NFS3_ACCESS, nfs3_access_proc, (xdrproc_t)xdr_ACCESS3args, sizeof(ACCESS3args), (xdrproc_t)xdr_ACCESS3res, sizeof(ACCESS3res), this},
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{NFS_PROGRAM, NFS_V3, NFS3_READLINK, kv_nfs3_readlink_proc, (xdrproc_t)xdr_READLINK3args, sizeof(READLINK3args), (xdrproc_t)xdr_READLINK3res, sizeof(READLINK3res), this},
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{NFS_PROGRAM, NFS_V3, NFS3_READ, kv_nfs3_read_proc, (xdrproc_t)xdr_READ3args, sizeof(READ3args), (xdrproc_t)xdr_READ3res, sizeof(READ3res), this},
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{NFS_PROGRAM, NFS_V3, NFS3_WRITE, kv_nfs3_write_proc, (xdrproc_t)xdr_WRITE3args, sizeof(WRITE3args), (xdrproc_t)xdr_WRITE3res, sizeof(WRITE3res), this},
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{NFS_PROGRAM, NFS_V3, NFS3_CREATE, kv_nfs3_create_proc, (xdrproc_t)xdr_CREATE3args, sizeof(CREATE3args), (xdrproc_t)xdr_CREATE3res, sizeof(CREATE3res), this},
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{NFS_PROGRAM, NFS_V3, NFS3_MKDIR, kv_nfs3_mkdir_proc, (xdrproc_t)xdr_MKDIR3args, sizeof(MKDIR3args), (xdrproc_t)xdr_MKDIR3res, sizeof(MKDIR3res), this},
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{NFS_PROGRAM, NFS_V3, NFS3_SYMLINK, kv_nfs3_symlink_proc, (xdrproc_t)xdr_SYMLINK3args, sizeof(SYMLINK3args), (xdrproc_t)xdr_SYMLINK3res, sizeof(SYMLINK3res), this},
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{NFS_PROGRAM, NFS_V3, NFS3_MKNOD, kv_nfs3_mknod_proc, (xdrproc_t)xdr_MKNOD3args, sizeof(MKNOD3args), (xdrproc_t)xdr_MKNOD3res, sizeof(MKNOD3res), this},
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{NFS_PROGRAM, NFS_V3, NFS3_REMOVE, kv_nfs3_remove_proc, (xdrproc_t)xdr_REMOVE3args, sizeof(REMOVE3args), (xdrproc_t)xdr_REMOVE3res, sizeof(REMOVE3res), this},
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{NFS_PROGRAM, NFS_V3, NFS3_RMDIR, kv_nfs3_rmdir_proc, (xdrproc_t)xdr_RMDIR3args, sizeof(RMDIR3args), (xdrproc_t)xdr_RMDIR3res, sizeof(RMDIR3res), this},
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{NFS_PROGRAM, NFS_V3, NFS3_RENAME, kv_nfs3_rename_proc, (xdrproc_t)xdr_RENAME3args, sizeof(RENAME3args), (xdrproc_t)xdr_RENAME3res, sizeof(RENAME3res), this},
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{NFS_PROGRAM, NFS_V3, NFS3_LINK, kv_nfs3_link_proc, (xdrproc_t)xdr_LINK3args, sizeof(LINK3args), (xdrproc_t)xdr_LINK3res, sizeof(LINK3res), this},
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{NFS_PROGRAM, NFS_V3, NFS3_READDIR, kv_nfs3_readdir_proc, (xdrproc_t)xdr_READDIR3args, sizeof(READDIR3args), (xdrproc_t)xdr_READDIR3res, sizeof(READDIR3res), this},
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{NFS_PROGRAM, NFS_V3, NFS3_READDIRPLUS, kv_nfs3_readdirplus_proc, (xdrproc_t)xdr_READDIRPLUS3args, sizeof(READDIRPLUS3args), (xdrproc_t)xdr_READDIRPLUS3res, sizeof(READDIRPLUS3res), this},
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{NFS_PROGRAM, NFS_V3, NFS3_FSSTAT, kv_nfs3_fsstat_proc, (xdrproc_t)xdr_FSSTAT3args, sizeof(FSSTAT3args), (xdrproc_t)xdr_FSSTAT3res, sizeof(FSSTAT3res), this},
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{NFS_PROGRAM, NFS_V3, NFS3_FSINFO, kv_nfs3_fsinfo_proc, (xdrproc_t)xdr_FSINFO3args, sizeof(FSINFO3args), (xdrproc_t)xdr_FSINFO3res, sizeof(FSINFO3res), this},
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{NFS_PROGRAM, NFS_V3, NFS3_PATHCONF, kv_nfs3_pathconf_proc, (xdrproc_t)xdr_PATHCONF3args, sizeof(PATHCONF3args), (xdrproc_t)xdr_PATHCONF3res, sizeof(PATHCONF3res), this},
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{NFS_PROGRAM, NFS_V3, NFS3_COMMIT, nfs3_commit_proc, (xdrproc_t)xdr_COMMIT3args, sizeof(COMMIT3args), (xdrproc_t)xdr_COMMIT3res, sizeof(COMMIT3res), this},
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{MOUNT_PROGRAM, MOUNT_V3, MOUNT3_NULL, nfs3_null_proc, NULL, 0, NULL, 0, this},
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{MOUNT_PROGRAM, MOUNT_V3, MOUNT3_MNT, mount3_mnt_proc, (xdrproc_t)xdr_nfs_dirpath, sizeof(nfs_dirpath), (xdrproc_t)xdr_nfs_mountres3, sizeof(nfs_mountres3), this},
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{MOUNT_PROGRAM, MOUNT_V3, MOUNT3_DUMP, mount3_dump_proc, NULL, 0, (xdrproc_t)xdr_nfs_mountlist, sizeof(nfs_mountlist), this},
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{MOUNT_PROGRAM, MOUNT_V3, MOUNT3_UMNT, mount3_umnt_proc, (xdrproc_t)xdr_nfs_dirpath, sizeof(nfs_dirpath), NULL, 0, this},
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{MOUNT_PROGRAM, MOUNT_V3, MOUNT3_UMNTALL, mount3_umntall_proc, NULL, 0, NULL, 0, this},
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{MOUNT_PROGRAM, MOUNT_V3, MOUNT3_EXPORT, mount3_export_proc, NULL, 0, (xdrproc_t)xdr_nfs_exports, sizeof(nfs_exports), this},
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};
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for (int i = 0; i < sizeof(pt)/sizeof(pt[0]); i++)
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{
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proc_table.insert(pt[i]);
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}
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}
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nfs_client_t::~nfs_client_t()
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{
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}
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