[745] | 1 | /*
|
---|
| 2 | Unix SMB/CIFS implementation.
|
---|
| 3 | NT QUOTA suppport
|
---|
| 4 | Copyright (C) Stefan (metze) Metzmacher 2003
|
---|
| 5 |
|
---|
| 6 | This program is free software; you can redistribute it and/or modify
|
---|
| 7 | it under the terms of the GNU General Public License as published by
|
---|
| 8 | the Free Software Foundation; either version 3 of the License, or
|
---|
| 9 | (at your option) any later version.
|
---|
| 10 |
|
---|
| 11 | This program is distributed in the hope that it will be useful,
|
---|
| 12 | but WITHOUT ANY WARRANTY; without even the implied warranty of
|
---|
| 13 | MERCHANTABILITY or FITNESS FOR A PARTICULAR PURPOSE. See the
|
---|
| 14 | GNU General Public License for more details.
|
---|
| 15 |
|
---|
| 16 | You should have received a copy of the GNU General Public License
|
---|
| 17 | along with this program. If not, see <http://www.gnu.org/licenses/>.
|
---|
| 18 | */
|
---|
| 19 |
|
---|
| 20 | #include "includes.h"
|
---|
| 21 | #include "smbd/smbd.h"
|
---|
| 22 | #include "../lib/util/util_pw.h"
|
---|
| 23 | #include "system/passwd.h"
|
---|
| 24 | #include "passdb/lookup_sid.h"
|
---|
| 25 | #include "libsmb/libsmb.h"
|
---|
| 26 |
|
---|
| 27 | #undef DBGC_CLASS
|
---|
| 28 | #define DBGC_CLASS DBGC_QUOTA
|
---|
| 29 |
|
---|
| 30 | static uint64_t limit_nt2unix(uint64_t in, uint64_t bsize)
|
---|
| 31 | {
|
---|
| 32 | uint64_t ret = (uint64_t)0;
|
---|
| 33 |
|
---|
| 34 | ret = (uint64_t)(in/bsize);
|
---|
| 35 | if (in>0 && ret==0) {
|
---|
| 36 | /* we have to make sure that a overflow didn't set NO_LIMIT */
|
---|
| 37 | ret = (uint64_t)1;
|
---|
| 38 | }
|
---|
| 39 |
|
---|
| 40 | if (in == SMB_NTQUOTAS_NO_LIMIT)
|
---|
| 41 | ret = SMB_QUOTAS_NO_LIMIT;
|
---|
| 42 | else if (in == SMB_NTQUOTAS_NO_SPACE)
|
---|
| 43 | ret = SMB_QUOTAS_NO_SPACE;
|
---|
| 44 | else if (in == SMB_NTQUOTAS_NO_ENTRY)
|
---|
| 45 | ret = SMB_QUOTAS_NO_LIMIT;
|
---|
| 46 |
|
---|
| 47 | return ret;
|
---|
| 48 | }
|
---|
| 49 |
|
---|
| 50 | static uint64_t limit_unix2nt(uint64_t in, uint64_t bsize)
|
---|
| 51 | {
|
---|
| 52 | uint64_t ret = (uint64_t)0;
|
---|
| 53 |
|
---|
| 54 | ret = (uint64_t)(in*bsize);
|
---|
| 55 |
|
---|
| 56 | if (ret < in) {
|
---|
| 57 | /* we overflow */
|
---|
| 58 | ret = SMB_NTQUOTAS_NO_LIMIT;
|
---|
| 59 | }
|
---|
| 60 |
|
---|
| 61 | if (in == SMB_QUOTAS_NO_LIMIT)
|
---|
| 62 | ret = SMB_NTQUOTAS_NO_LIMIT;
|
---|
| 63 |
|
---|
| 64 | return ret;
|
---|
| 65 | }
|
---|
| 66 |
|
---|
| 67 | static uint64_t limit_blk2inodes(uint64_t in)
|
---|
| 68 | {
|
---|
| 69 | uint64_t ret = (uint64_t)0;
|
---|
| 70 |
|
---|
| 71 | ret = (uint64_t)(in/2);
|
---|
| 72 |
|
---|
| 73 | if (ret == 0 && in != 0)
|
---|
| 74 | ret = (uint64_t)1;
|
---|
| 75 |
|
---|
| 76 | return ret;
|
---|
| 77 | }
|
---|
| 78 |
|
---|
| 79 | int vfs_get_ntquota(files_struct *fsp, enum SMB_QUOTA_TYPE qtype, struct dom_sid *psid, SMB_NTQUOTA_STRUCT *qt)
|
---|
| 80 | {
|
---|
| 81 | int ret;
|
---|
| 82 | SMB_DISK_QUOTA D;
|
---|
| 83 | unid_t id;
|
---|
| 84 |
|
---|
| 85 | ZERO_STRUCT(D);
|
---|
| 86 |
|
---|
| 87 | if (!fsp||!fsp->conn||!qt)
|
---|
| 88 | return (-1);
|
---|
| 89 |
|
---|
| 90 | ZERO_STRUCT(*qt);
|
---|
| 91 |
|
---|
| 92 | id.uid = -1;
|
---|
| 93 |
|
---|
| 94 | if (psid && !sid_to_uid(psid, &id.uid)) {
|
---|
| 95 | DEBUG(0,("sid_to_uid: failed, SID[%s]\n",
|
---|
| 96 | sid_string_dbg(psid)));
|
---|
| 97 | }
|
---|
| 98 |
|
---|
| 99 | ret = SMB_VFS_GET_QUOTA(fsp->conn, qtype, id, &D);
|
---|
| 100 |
|
---|
| 101 | if (psid)
|
---|
| 102 | qt->sid = *psid;
|
---|
| 103 |
|
---|
| 104 | if (ret!=0) {
|
---|
| 105 | return ret;
|
---|
| 106 | }
|
---|
| 107 |
|
---|
| 108 | qt->usedspace = (uint64_t)D.curblocks*D.bsize;
|
---|
| 109 | qt->softlim = limit_unix2nt(D.softlimit, D.bsize);
|
---|
| 110 | qt->hardlim = limit_unix2nt(D.hardlimit, D.bsize);
|
---|
| 111 | qt->qflags = D.qflags;
|
---|
| 112 |
|
---|
| 113 |
|
---|
| 114 | return 0;
|
---|
| 115 | }
|
---|
| 116 |
|
---|
| 117 | int vfs_set_ntquota(files_struct *fsp, enum SMB_QUOTA_TYPE qtype, struct dom_sid *psid, SMB_NTQUOTA_STRUCT *qt)
|
---|
| 118 | {
|
---|
| 119 | int ret;
|
---|
| 120 | SMB_DISK_QUOTA D;
|
---|
| 121 | unid_t id;
|
---|
| 122 | ZERO_STRUCT(D);
|
---|
| 123 |
|
---|
| 124 | if (!fsp||!fsp->conn||!qt)
|
---|
| 125 | return (-1);
|
---|
| 126 |
|
---|
| 127 | id.uid = -1;
|
---|
| 128 |
|
---|
| 129 | D.bsize = (uint64_t)QUOTABLOCK_SIZE;
|
---|
| 130 |
|
---|
| 131 | D.softlimit = limit_nt2unix(qt->softlim,D.bsize);
|
---|
| 132 | D.hardlimit = limit_nt2unix(qt->hardlim,D.bsize);
|
---|
| 133 | D.qflags = qt->qflags;
|
---|
| 134 |
|
---|
| 135 | D.isoftlimit = limit_blk2inodes(D.softlimit);
|
---|
| 136 | D.ihardlimit = limit_blk2inodes(D.hardlimit);
|
---|
| 137 |
|
---|
| 138 | if (psid && !sid_to_uid(psid, &id.uid)) {
|
---|
| 139 | DEBUG(0,("sid_to_uid: failed, SID[%s]\n",
|
---|
| 140 | sid_string_dbg(psid)));
|
---|
| 141 | }
|
---|
| 142 |
|
---|
| 143 | ret = SMB_VFS_SET_QUOTA(fsp->conn, qtype, id, &D);
|
---|
| 144 |
|
---|
| 145 | return ret;
|
---|
| 146 | }
|
---|
| 147 |
|
---|
| 148 | static bool allready_in_quota_list(SMB_NTQUOTA_LIST *qt_list, uid_t uid)
|
---|
| 149 | {
|
---|
| 150 | SMB_NTQUOTA_LIST *tmp_list = NULL;
|
---|
| 151 |
|
---|
| 152 | if (!qt_list)
|
---|
| 153 | return False;
|
---|
| 154 |
|
---|
| 155 | for (tmp_list=qt_list;tmp_list!=NULL;tmp_list=tmp_list->next) {
|
---|
| 156 | if (tmp_list->uid == uid) {
|
---|
| 157 | return True;
|
---|
| 158 | }
|
---|
| 159 | }
|
---|
| 160 |
|
---|
| 161 | return False;
|
---|
| 162 | }
|
---|
| 163 |
|
---|
| 164 | int vfs_get_user_ntquota_list(files_struct *fsp, SMB_NTQUOTA_LIST **qt_list)
|
---|
| 165 | {
|
---|
| 166 | struct passwd *usr;
|
---|
| 167 | TALLOC_CTX *mem_ctx = NULL;
|
---|
| 168 |
|
---|
| 169 | if (!fsp||!fsp->conn||!qt_list)
|
---|
| 170 | return (-1);
|
---|
| 171 |
|
---|
| 172 | *qt_list = NULL;
|
---|
| 173 |
|
---|
| 174 | if ((mem_ctx=talloc_init("SMB_USER_QUOTA_LIST"))==NULL) {
|
---|
| 175 | DEBUG(0,("talloc_init() failed\n"));
|
---|
| 176 | return (-1);
|
---|
| 177 | }
|
---|
| 178 |
|
---|
| 179 | sys_setpwent();
|
---|
| 180 | while ((usr = sys_getpwent()) != NULL) {
|
---|
| 181 | SMB_NTQUOTA_STRUCT tmp_qt;
|
---|
| 182 | SMB_NTQUOTA_LIST *tmp_list_ent;
|
---|
| 183 | struct dom_sid sid;
|
---|
| 184 |
|
---|
| 185 | ZERO_STRUCT(tmp_qt);
|
---|
| 186 |
|
---|
| 187 | if (allready_in_quota_list((*qt_list),usr->pw_uid)) {
|
---|
| 188 | DEBUG(5,("record for uid[%ld] allready in the list\n",(long)usr->pw_uid));
|
---|
| 189 | continue;
|
---|
| 190 | }
|
---|
| 191 |
|
---|
| 192 | uid_to_sid(&sid, usr->pw_uid);
|
---|
| 193 |
|
---|
| 194 | if (vfs_get_ntquota(fsp, SMB_USER_QUOTA_TYPE, &sid, &tmp_qt)!=0) {
|
---|
| 195 | DEBUG(5,("no quota entry for sid[%s] path[%s]\n",
|
---|
| 196 | sid_string_dbg(&sid),
|
---|
| 197 | fsp->conn->connectpath));
|
---|
| 198 | continue;
|
---|
| 199 | }
|
---|
| 200 |
|
---|
| 201 | DEBUG(15,("quota entry for id[%s] path[%s]\n",
|
---|
| 202 | sid_string_dbg(&sid), fsp->conn->connectpath));
|
---|
| 203 |
|
---|
| 204 | if ((tmp_list_ent=TALLOC_ZERO_P(mem_ctx,SMB_NTQUOTA_LIST))==NULL) {
|
---|
| 205 | DEBUG(0,("TALLOC_ZERO() failed\n"));
|
---|
| 206 | *qt_list = NULL;
|
---|
| 207 | talloc_destroy(mem_ctx);
|
---|
| 208 | return (-1);
|
---|
| 209 | }
|
---|
| 210 |
|
---|
| 211 | if ((tmp_list_ent->quotas=TALLOC_ZERO_P(mem_ctx,SMB_NTQUOTA_STRUCT))==NULL) {
|
---|
| 212 | DEBUG(0,("TALLOC_ZERO() failed\n"));
|
---|
| 213 | *qt_list = NULL;
|
---|
| 214 | talloc_destroy(mem_ctx);
|
---|
| 215 | return (-1);
|
---|
| 216 | }
|
---|
| 217 |
|
---|
| 218 | tmp_list_ent->uid = usr->pw_uid;
|
---|
| 219 | memcpy(tmp_list_ent->quotas,&tmp_qt,sizeof(tmp_qt));
|
---|
| 220 | tmp_list_ent->mem_ctx = mem_ctx;
|
---|
| 221 |
|
---|
| 222 | DLIST_ADD((*qt_list),tmp_list_ent);
|
---|
| 223 |
|
---|
| 224 | }
|
---|
| 225 | sys_endpwent();
|
---|
| 226 |
|
---|
| 227 | return 0;
|
---|
| 228 | }
|
---|
| 229 |
|
---|
| 230 | static int quota_handle_destructor(SMB_NTQUOTA_HANDLE *handle)
|
---|
| 231 | {
|
---|
| 232 | if (handle->quota_list)
|
---|
| 233 | free_ntquota_list(&handle->quota_list);
|
---|
| 234 | return 0;
|
---|
| 235 | }
|
---|
| 236 |
|
---|
| 237 | void *init_quota_handle(TALLOC_CTX *mem_ctx)
|
---|
| 238 | {
|
---|
| 239 | SMB_NTQUOTA_HANDLE *qt_handle;
|
---|
| 240 |
|
---|
| 241 | if (!mem_ctx)
|
---|
| 242 | return False;
|
---|
| 243 |
|
---|
| 244 | qt_handle = TALLOC_ZERO_P(mem_ctx,SMB_NTQUOTA_HANDLE);
|
---|
| 245 | if (qt_handle==NULL) {
|
---|
| 246 | DEBUG(0,("TALLOC_ZERO() failed\n"));
|
---|
| 247 | return NULL;
|
---|
| 248 | }
|
---|
| 249 |
|
---|
| 250 | talloc_set_destructor(qt_handle, quota_handle_destructor);
|
---|
| 251 | return (void *)qt_handle;
|
---|
| 252 | }
|
---|