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 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 22extern SMB_ACL_T aixacl_to_smbacl( struct acl *file_acl); 23extern struct acl *aixacl_smb_to_aixacl(SMB_ACL_TYPE_T acltype, SMB_ACL_T theacl); 24 25SMB_ACL_T aixacl_sys_acl_get_file(vfs_handle_struct *handle, 26 const char *path_p, 27 SMB_ACL_TYPE_T type) 28{ 29 struct acl *file_acl = (struct acl *)NULL; 30 struct smb_acl_t *result = (struct smb_acl_t *)NULL; 31 32 int rc = 0; 33 uid_t user_id; 34 35 /* AIX has no DEFAULT */ 36 if ( type == SMB_ACL_TYPE_DEFAULT ) 37 return NULL; 38 39 /* Get the acl using statacl */ 40 41 DEBUG(10,("Entering AIX sys_acl_get_file\n")); 42 DEBUG(10,("path_p is %s\n",path_p)); 43 44 file_acl = (struct acl *)SMB_MALLOC(BUFSIZ); 45 46 if(file_acl == NULL) { 47 errno=ENOMEM; 48 DEBUG(0,("Error in AIX sys_acl_get_file: %d\n",errno)); 49 return(NULL); 50 } 51 52 memset(file_acl,0,BUFSIZ); 53 54 rc = statacl((char *)path_p,0,file_acl,BUFSIZ); 55 if( (rc == -1) && (errno == ENOSPC)) { 56 struct acl *new_acl = SMB_MALLOC(file_acl->acl_len + sizeof(struct acl)); 57 if( new_acl == NULL) { 58 SAFE_FREE(file_acl); 59 errno = ENOMEM; 60 return NULL; 61 } 62 file_acl = new_acl; 63 rc = statacl((char *)path_p,0,file_acl,file_acl->acl_len+sizeof(struct acl)); 64 if( rc == -1) { 65 DEBUG(0,("statacl returned %d with errno %d\n",rc,errno)); 66 SAFE_FREE(file_acl); 67 return(NULL); 68 } 69 } 70 71 DEBUG(10,("Got facl and returned it\n")); 72 73 74 result = aixacl_to_smbacl(file_acl); 75 SAFE_FREE(file_acl); 76 return result; 77 78 /*errno = ENOTSUP; 79 return NULL;*/ 80} 81 82SMB_ACL_T aixacl_sys_acl_get_fd(vfs_handle_struct *handle, 83 files_struct *fsp) 84{ 85 86 struct acl *file_acl = (struct acl *)NULL; 87 struct smb_acl_t *result = (struct smb_acl_t *)NULL; 88 89 int rc = 0; 90 uid_t user_id; 91 92 /* Get the acl using fstatacl */ 93 94 DEBUG(10,("Entering AIX sys_acl_get_fd\n")); 95 DEBUG(10,("fd is %d\n",fsp->fh->fd)); 96 file_acl = (struct acl *)SMB_MALLOC(BUFSIZ); 97 98 if(file_acl == NULL) { 99 errno=ENOMEM; 100 DEBUG(0,("Error in AIX sys_acl_get_fd is %d\n",errno)); 101 return(NULL); 102 } 103 104 memset(file_acl,0,BUFSIZ); 105 106 rc = fstatacl(fsp->fh->fd,0,file_acl,BUFSIZ); 107 if( (rc == -1) && (errno == ENOSPC)) { 108 struct acl *new_acl = SMB_MALLOC(file_acl->acl_len + sizeof(struct acl)); 109 if( new_acl == NULL) { 110 SAFE_FREE(file_acl); 111 errno = ENOMEM; 112 return NULL; 113 } 114 file_acl = new_acl; 115 rc = fstatacl(fsp->fh->fd,0,file_acl,file_acl->acl_len + sizeof(struct acl)); 116 if( rc == -1) { 117 DEBUG(0,("fstatacl returned %d with errno %d\n",rc,errno)); 118 SAFE_FREE(file_acl); 119 return(NULL); 120 } 121 } 122 123 DEBUG(10,("Got facl and returned it\n")); 124 125 result = aixacl_to_smbacl(file_acl); 126 SAFE_FREE(file_acl); 127 return result; 128 129 /*errno = ENOTSUP; 130 return NULL;*/ 131} 132 133int aixacl_sys_acl_set_file(vfs_handle_struct *handle, 134 const char *name, 135 SMB_ACL_TYPE_T type, 136 SMB_ACL_T theacl) 137{ 138 struct acl *file_acl = NULL; 139 unsigned int rc; 140 141 file_acl = aixacl_smb_to_aixacl(type, theacl); 142 if (!file_acl) 143 return -1; 144 145 rc = chacl((char *)name,file_acl,file_acl->acl_len); 146 DEBUG(10,("errno is %d\n",errno)); 147 DEBUG(10,("return code is %d\n",rc)); 148 SAFE_FREE(file_acl); 149 DEBUG(10,("Exiting the aixacl_sys_acl_set_file\n")); 150 151 return rc; 152} 153 154int aixacl_sys_acl_set_fd(vfs_handle_struct *handle, 155 files_struct *fsp, 156 SMB_ACL_T theacl) 157{ 158 struct acl *file_acl = NULL; 159 unsigned int rc; 160 161 file_acl = aixacl_smb_to_aixacl(SMB_ACL_TYPE_ACCESS, theacl); 162 if (!file_acl) 163 return -1; 164 165 rc = fchacl(fsp->fh->fd,file_acl,file_acl->acl_len); 166 DEBUG(10,("errno is %d\n",errno)); 167 DEBUG(10,("return code is %d\n",rc)); 168 SAFE_FREE(file_acl); 169 DEBUG(10,("Exiting aixacl_sys_acl_set_fd\n")); 170 171 return rc; 172} 173 174int aixacl_sys_acl_delete_def_file(vfs_handle_struct *handle, 175 const char *path) 176{ 177 return 0; /* otherwise you can't set acl at upper level */ 178} 179 180static struct vfs_fn_pointers vfs_aixacl_fns = { 181 .sys_acl_get_file = aixacl_sys_acl_get_file, 182 .sys_acl_get_fd = aixacl_sys_acl_get_fd, 183 .sys_acl_set_file = aixacl_sys_acl_set_file, 184 .sys_acl_set_fd = aixacl_sys_acl_set_fd, 185 .sys_acl_delete_def_file = aixacl_sys_acl_delete_def_file, 186}; 187 188NTSTATUS vfs_aixacl_init(void); 189NTSTATUS vfs_aixacl_init(void) 190{ 191 return smb_register_vfs(SMB_VFS_INTERFACE_VERSION, "aixacl", 192 &vfs_aixacl_fns); 193} 194