/* Unix SMB/CIFS implementation. NT QUOTA suppport Copyright (C) Stefan (metze) Metzmacher 2003 This program is free software; you can redistribute it and/or modify it under the terms of the GNU General Public License as published by the Free Software Foundation; either version 3 of the License, or (at your option) any later version. This program is distributed in the hope that it will be useful, but WITHOUT ANY WARRANTY; without even the implied warranty of MERCHANTABILITY or FITNESS FOR A PARTICULAR PURPOSE. See the GNU General Public License for more details. You should have received a copy of the GNU General Public License along with this program. If not, see <http://www.gnu.org/licenses/>. */ #include "includes.h" #undef DBGC_CLASS #define DBGC_CLASS DBGC_QUOTA static uint64_t limit_nt2unix(uint64_t in, uint64_t bsize) { uint64_t ret = (uint64_t)0; ret = (uint64_t)(in/bsize); if (in>0 && ret==0) { /* we have to make sure that a overflow didn't set NO_LIMIT */ ret = (uint64_t)1; } if (in == SMB_NTQUOTAS_NO_LIMIT) ret = SMB_QUOTAS_NO_LIMIT; else if (in == SMB_NTQUOTAS_NO_SPACE) ret = SMB_QUOTAS_NO_SPACE; else if (in == SMB_NTQUOTAS_NO_ENTRY) ret = SMB_QUOTAS_NO_LIMIT; return ret; } static uint64_t limit_unix2nt(uint64_t in, uint64_t bsize) { uint64_t ret = (uint64_t)0; ret = (uint64_t)(in*bsize); if (ret < in) { /* we overflow */ ret = SMB_NTQUOTAS_NO_LIMIT; } if (in == SMB_QUOTAS_NO_LIMIT) ret = SMB_NTQUOTAS_NO_LIMIT; return ret; } static uint64_t limit_blk2inodes(uint64_t in) { uint64_t ret = (uint64_t)0; ret = (uint64_t)(in/2); if (ret == 0 && in != 0) ret = (uint64_t)1; return ret; } int vfs_get_ntquota(files_struct *fsp, enum SMB_QUOTA_TYPE qtype, struct dom_sid *psid, SMB_NTQUOTA_STRUCT *qt) { int ret; SMB_DISK_QUOTA D; unid_t id; ZERO_STRUCT(D); if (!fsp||!fsp->conn||!qt) return (-1); ZERO_STRUCT(*qt); id.uid = -1; if (psid && !sid_to_uid(psid, &id.uid)) { DEBUG(0,("sid_to_uid: failed, SID[%s]\n", sid_string_dbg(psid))); } ret = SMB_VFS_GET_QUOTA(fsp->conn, qtype, id, &D); if (psid) qt->sid = *psid; if (ret!=0) { return ret; } qt->usedspace = (uint64_t)D.curblocks*D.bsize; qt->softlim = limit_unix2nt(D.softlimit, D.bsize); qt->hardlim = limit_unix2nt(D.hardlimit, D.bsize); qt->qflags = D.qflags; return 0; } int vfs_set_ntquota(files_struct *fsp, enum SMB_QUOTA_TYPE qtype, struct dom_sid *psid, SMB_NTQUOTA_STRUCT *qt) { int ret; SMB_DISK_QUOTA D; unid_t id; ZERO_STRUCT(D); if (!fsp||!fsp->conn||!qt) return (-1); id.uid = -1; D.bsize = (uint64_t)QUOTABLOCK_SIZE; D.softlimit = limit_nt2unix(qt->softlim,D.bsize); D.hardlimit = limit_nt2unix(qt->hardlim,D.bsize); D.qflags = qt->qflags; D.isoftlimit = limit_blk2inodes(D.softlimit); D.ihardlimit = limit_blk2inodes(D.hardlimit); if (psid && !sid_to_uid(psid, &id.uid)) { DEBUG(0,("sid_to_uid: failed, SID[%s]\n", sid_string_dbg(psid))); } ret = SMB_VFS_SET_QUOTA(fsp->conn, qtype, id, &D); return ret; } static bool allready_in_quota_list(SMB_NTQUOTA_LIST *qt_list, uid_t uid) { SMB_NTQUOTA_LIST *tmp_list = NULL; if (!qt_list) return False; for (tmp_list=qt_list;tmp_list!=NULL;tmp_list=tmp_list->next) { if (tmp_list->uid == uid) { return True; } } return False; } int vfs_get_user_ntquota_list(files_struct *fsp, SMB_NTQUOTA_LIST **qt_list) { struct passwd *usr; TALLOC_CTX *mem_ctx = NULL; if (!fsp||!fsp->conn||!qt_list) return (-1); *qt_list = NULL; if ((mem_ctx=talloc_init("SMB_USER_QUOTA_LIST"))==NULL) { DEBUG(0,("talloc_init() failed\n")); return (-1); } sys_setpwent(); while ((usr = sys_getpwent()) != NULL) { SMB_NTQUOTA_STRUCT tmp_qt; SMB_NTQUOTA_LIST *tmp_list_ent; struct dom_sid sid; ZERO_STRUCT(tmp_qt); if (allready_in_quota_list((*qt_list),usr->pw_uid)) { DEBUG(5,("record for uid[%ld] allready in the list\n",(long)usr->pw_uid)); continue; } uid_to_sid(&sid, usr->pw_uid); if (vfs_get_ntquota(fsp, SMB_USER_QUOTA_TYPE, &sid, &tmp_qt)!=0) { DEBUG(5,("no quota entry for sid[%s] path[%s]\n", sid_string_dbg(&sid), fsp->conn->connectpath)); continue; } DEBUG(15,("quota entry for id[%s] path[%s]\n", sid_string_dbg(&sid), fsp->conn->connectpath)); if ((tmp_list_ent=TALLOC_ZERO_P(mem_ctx,SMB_NTQUOTA_LIST))==NULL) { DEBUG(0,("TALLOC_ZERO() failed\n")); *qt_list = NULL; talloc_destroy(mem_ctx); return (-1); } if ((tmp_list_ent->quotas=TALLOC_ZERO_P(mem_ctx,SMB_NTQUOTA_STRUCT))==NULL) { DEBUG(0,("TALLOC_ZERO() failed\n")); *qt_list = NULL; talloc_destroy(mem_ctx); return (-1); } tmp_list_ent->uid = usr->pw_uid; memcpy(tmp_list_ent->quotas,&tmp_qt,sizeof(tmp_qt)); tmp_list_ent->mem_ctx = mem_ctx; DLIST_ADD((*qt_list),tmp_list_ent); } sys_endpwent(); return 0; } static int quota_handle_destructor(SMB_NTQUOTA_HANDLE *handle) { if (handle->quota_list) free_ntquota_list(&handle->quota_list); return 0; } void *init_quota_handle(TALLOC_CTX *mem_ctx) { SMB_NTQUOTA_HANDLE *qt_handle; if (!mem_ctx) return False; qt_handle = TALLOC_ZERO_P(mem_ctx,SMB_NTQUOTA_HANDLE); if (qt_handle==NULL) { DEBUG(0,("TALLOC_ZERO() failed\n")); return NULL; } talloc_set_destructor(qt_handle, quota_handle_destructor); return (void *)qt_handle; }