1/* 2 Unix SMB/Netbios implementation. 3 VFS module to get and set posix acls 4 Copyright (C) Jim McDonough <jmcd@us.ibm.com> 2006 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 2 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, write to the Free Software 18 Foundation, Inc., 675 Mass Ave, Cambridge, MA 02139, USA. 19*/ 20 21#include "includes.h" 22 23extern SMB_ACL_T aixacl_to_smbacl( struct acl *file_acl); 24extern struct acl *aixacl_smb_to_aixacl(SMB_ACL_TYPE_T acltype, SMB_ACL_T theacl); 25 26SMB_ACL_T aixacl_sys_acl_get_file(vfs_handle_struct *handle, 27 const char *path_p, 28 SMB_ACL_TYPE_T type) 29{ 30 struct acl *file_acl = (struct acl *)NULL; 31 struct smb_acl_t *result = (struct smb_acl_t *)NULL; 32 33 int rc = 0; 34 uid_t user_id; 35 36 /* AIX has no DEFAULT */ 37 if ( type == SMB_ACL_TYPE_DEFAULT ) 38 return NULL; 39 40 /* Get the acl using statacl */ 41 42 DEBUG(10,("Entering AIX sys_acl_get_file\n")); 43 DEBUG(10,("path_p is %s\n",path_p)); 44 45 file_acl = (struct acl *)SMB_MALLOC(BUFSIZ); 46 47 if(file_acl == NULL) { 48 errno=ENOMEM; 49 DEBUG(0,("Error in AIX sys_acl_get_file: %d\n",errno)); 50 return(NULL); 51 } 52 53 memset(file_acl,0,BUFSIZ); 54 55 rc = statacl((char *)path_p,0,file_acl,BUFSIZ); 56 if( (rc == -1) && (errno == ENOSPC)) { 57 struct acl *new_acl = SMB_MALLOC(file_acl->acl_len + sizeof(struct acl)); 58 if( new_acl == NULL) { 59 SAFE_FREE(file_acl); 60 errno = ENOMEM; 61 return NULL; 62 } 63 file_acl = new_acl; 64 rc = statacl((char *)path_p,0,file_acl,file_acl->acl_len+sizeof(struct acl)); 65 if( rc == -1) { 66 DEBUG(0,("statacl returned %d with errno %d\n",rc,errno)); 67 SAFE_FREE(file_acl); 68 return(NULL); 69 } 70 } 71 72 DEBUG(10,("Got facl and returned it\n")); 73 74 75 result = aixacl_to_smbacl(file_acl); 76 SAFE_FREE(file_acl); 77 return result; 78 79 /*errno = ENOTSUP; 80 return NULL;*/ 81} 82 83SMB_ACL_T aixacl_sys_acl_get_fd(vfs_handle_struct *handle, 84 files_struct *fsp, 85 int fd) 86{ 87 88 struct acl *file_acl = (struct acl *)NULL; 89 struct smb_acl_t *result = (struct smb_acl_t *)NULL; 90 91 int rc = 0; 92 uid_t user_id; 93 94 /* Get the acl using fstatacl */ 95 96 DEBUG(10,("Entering AIX sys_acl_get_fd\n")); 97 DEBUG(10,("fd is %d\n",fd)); 98 file_acl = (struct acl *)SMB_MALLOC(BUFSIZ); 99 100 if(file_acl == NULL) { 101 errno=ENOMEM; 102 DEBUG(0,("Error in AIX sys_acl_get_fd is %d\n",errno)); 103 return(NULL); 104 } 105 106 memset(file_acl,0,BUFSIZ); 107 108 rc = fstatacl(fd,0,file_acl,BUFSIZ); 109 if( (rc == -1) && (errno == ENOSPC)) { 110 struct acl *new_acl = SMB_MALLOC(file_acl->acl_len + sizeof(struct acl)); 111 if( new_acl == NULL) { 112 SAFE_FREE(file_acl); 113 errno = ENOMEM; 114 return NULL; 115 } 116 file_acl = new_acl; 117 rc = fstatacl(fd,0,file_acl,file_acl->acl_len + sizeof(struct acl)); 118 if( rc == -1) { 119 DEBUG(0,("fstatacl returned %d with errno %d\n",rc,errno)); 120 SAFE_FREE(file_acl); 121 return(NULL); 122 } 123 } 124 125 DEBUG(10,("Got facl and returned it\n")); 126 127 result = aixacl_to_smbacl(file_acl); 128 SAFE_FREE(file_acl); 129 return result; 130 131 /*errno = ENOTSUP; 132 return NULL;*/ 133} 134 135int aixacl_sys_acl_set_file(vfs_handle_struct *handle, 136 const char *name, 137 SMB_ACL_TYPE_T type, 138 SMB_ACL_T theacl) 139{ 140 struct acl *file_acl = NULL; 141 uint rc; 142 143 file_acl = aixacl_smb_to_aixacl(type, theacl); 144 if (!file_acl) 145 return -1; 146 147 rc = chacl((char *)name,file_acl,file_acl->acl_len); 148 DEBUG(10,("errno is %d\n",errno)); 149 DEBUG(10,("return code is %d\n",rc)); 150 SAFE_FREE(file_acl); 151 DEBUG(10,("Exiting the aixacl_sys_acl_set_file\n")); 152 153 return rc; 154} 155 156int aixacl_sys_acl_set_fd(vfs_handle_struct *handle, 157 files_struct *fsp, 158 int fd, SMB_ACL_T theacl) 159{ 160 struct acl *file_acl = NULL; 161 uint rc; 162 163 file_acl = aixacl_smb_to_aixacl(SMB_ACL_TYPE_ACCESS, theacl); 164 if (!file_acl) 165 return -1; 166 167 rc = fchacl(fd,file_acl,file_acl->acl_len); 168 DEBUG(10,("errno is %d\n",errno)); 169 DEBUG(10,("return code is %d\n",rc)); 170 SAFE_FREE(file_acl); 171 DEBUG(10,("Exiting aixacl_sys_acl_set_fd\n")); 172 173 return rc; 174} 175 176int aixacl_sys_acl_delete_def_file(vfs_handle_struct *handle, 177 const char *path) 178{ 179 return 0; /* otherwise you can't set acl at upper level */ 180} 181 182/* VFS operations structure */ 183 184static vfs_op_tuple aixacl_op_tuples[] = { 185 /* Disk operations */ 186 {SMB_VFS_OP(aixacl_sys_acl_get_file), 187 SMB_VFS_OP_SYS_ACL_GET_FILE, 188 SMB_VFS_LAYER_TRANSPARENT}, 189 190 {SMB_VFS_OP(aixacl_sys_acl_get_fd), 191 SMB_VFS_OP_SYS_ACL_GET_FD, 192 SMB_VFS_LAYER_TRANSPARENT}, 193 194 {SMB_VFS_OP(aixacl_sys_acl_set_file), 195 SMB_VFS_OP_SYS_ACL_SET_FILE, 196 SMB_VFS_LAYER_TRANSPARENT}, 197 198 {SMB_VFS_OP(aixacl_sys_acl_set_fd), 199 SMB_VFS_OP_SYS_ACL_SET_FD, 200 SMB_VFS_LAYER_TRANSPARENT}, 201 202 {SMB_VFS_OP(aixacl_sys_acl_delete_def_file), 203 SMB_VFS_OP_SYS_ACL_DELETE_DEF_FILE, 204 SMB_VFS_LAYER_TRANSPARENT}, 205 206 {SMB_VFS_OP(NULL), 207 SMB_VFS_OP_NOOP, 208 SMB_VFS_LAYER_NOOP} 209}; 210 211NTSTATUS vfs_aixacl_init(void); 212NTSTATUS vfs_aixacl_init(void) 213{ 214 return smb_register_vfs(SMB_VFS_INTERFACE_VERSION, "aixacl", 215 aixacl_op_tuples); 216} 217