^8f3ce5b39 (kx 2023-10-28 12:00:06 +0300 1) /*
^8f3ce5b39 (kx 2023-10-28 12:00:06 +0300 2) * fs/cifs/xattr.c
^8f3ce5b39 (kx 2023-10-28 12:00:06 +0300 3) *
^8f3ce5b39 (kx 2023-10-28 12:00:06 +0300 4) * Copyright (c) International Business Machines Corp., 2003, 2007
^8f3ce5b39 (kx 2023-10-28 12:00:06 +0300 5) * Author(s): Steve French (sfrench@us.ibm.com)
^8f3ce5b39 (kx 2023-10-28 12:00:06 +0300 6) *
^8f3ce5b39 (kx 2023-10-28 12:00:06 +0300 7) * This library is free software; you can redistribute it and/or modify
^8f3ce5b39 (kx 2023-10-28 12:00:06 +0300 8) * it under the terms of the GNU Lesser General Public License as published
^8f3ce5b39 (kx 2023-10-28 12:00:06 +0300 9) * by the Free Software Foundation; either version 2.1 of the License, or
^8f3ce5b39 (kx 2023-10-28 12:00:06 +0300 10) * (at your option) any later version.
^8f3ce5b39 (kx 2023-10-28 12:00:06 +0300 11) *
^8f3ce5b39 (kx 2023-10-28 12:00:06 +0300 12) * This library is distributed in the hope that it will be useful,
^8f3ce5b39 (kx 2023-10-28 12:00:06 +0300 13) * but WITHOUT ANY WARRANTY; without even the implied warranty of
^8f3ce5b39 (kx 2023-10-28 12:00:06 +0300 14) * MERCHANTABILITY or FITNESS FOR A PARTICULAR PURPOSE. See
^8f3ce5b39 (kx 2023-10-28 12:00:06 +0300 15) * the GNU Lesser General Public License for more details.
^8f3ce5b39 (kx 2023-10-28 12:00:06 +0300 16) *
^8f3ce5b39 (kx 2023-10-28 12:00:06 +0300 17) * You should have received a copy of the GNU Lesser General Public License
^8f3ce5b39 (kx 2023-10-28 12:00:06 +0300 18) * along with this library; if not, write to the Free Software
^8f3ce5b39 (kx 2023-10-28 12:00:06 +0300 19) * Foundation, Inc., 59 Temple Place, Suite 330, Boston, MA 02111-1307 USA
^8f3ce5b39 (kx 2023-10-28 12:00:06 +0300 20) */
^8f3ce5b39 (kx 2023-10-28 12:00:06 +0300 21)
^8f3ce5b39 (kx 2023-10-28 12:00:06 +0300 22) #include <linux/fs.h>
^8f3ce5b39 (kx 2023-10-28 12:00:06 +0300 23) #include <linux/posix_acl_xattr.h>
^8f3ce5b39 (kx 2023-10-28 12:00:06 +0300 24) #include <linux/slab.h>
^8f3ce5b39 (kx 2023-10-28 12:00:06 +0300 25) #include <linux/xattr.h>
^8f3ce5b39 (kx 2023-10-28 12:00:06 +0300 26) #include "cifsfs.h"
^8f3ce5b39 (kx 2023-10-28 12:00:06 +0300 27) #include "cifspdu.h"
^8f3ce5b39 (kx 2023-10-28 12:00:06 +0300 28) #include "cifsglob.h"
^8f3ce5b39 (kx 2023-10-28 12:00:06 +0300 29) #include "cifsproto.h"
^8f3ce5b39 (kx 2023-10-28 12:00:06 +0300 30) #include "cifs_debug.h"
^8f3ce5b39 (kx 2023-10-28 12:00:06 +0300 31) #include "cifs_fs_sb.h"
^8f3ce5b39 (kx 2023-10-28 12:00:06 +0300 32) #include "cifs_unicode.h"
^8f3ce5b39 (kx 2023-10-28 12:00:06 +0300 33)
^8f3ce5b39 (kx 2023-10-28 12:00:06 +0300 34) #define MAX_EA_VALUE_SIZE CIFSMaxBufSize
^8f3ce5b39 (kx 2023-10-28 12:00:06 +0300 35) #define CIFS_XATTR_CIFS_ACL "system.cifs_acl" /* DACL only */
^8f3ce5b39 (kx 2023-10-28 12:00:06 +0300 36) #define CIFS_XATTR_CIFS_NTSD "system.cifs_ntsd" /* owner plus DACL */
^8f3ce5b39 (kx 2023-10-28 12:00:06 +0300 37) #define CIFS_XATTR_ATTRIB "cifs.dosattrib" /* full name: user.cifs.dosattrib */
^8f3ce5b39 (kx 2023-10-28 12:00:06 +0300 38) #define CIFS_XATTR_CREATETIME "cifs.creationtime" /* user.cifs.creationtime */
^8f3ce5b39 (kx 2023-10-28 12:00:06 +0300 39) /*
^8f3ce5b39 (kx 2023-10-28 12:00:06 +0300 40) * Although these three are just aliases for the above, need to move away from
^8f3ce5b39 (kx 2023-10-28 12:00:06 +0300 41) * confusing users and using the 20+ year old term 'cifs' when it is no longer
^8f3ce5b39 (kx 2023-10-28 12:00:06 +0300 42) * secure, replaced by SMB2 (then even more highly secure SMB3) many years ago
^8f3ce5b39 (kx 2023-10-28 12:00:06 +0300 43) */
^8f3ce5b39 (kx 2023-10-28 12:00:06 +0300 44) #define SMB3_XATTR_CIFS_ACL "system.smb3_acl" /* DACL only */
^8f3ce5b39 (kx 2023-10-28 12:00:06 +0300 45) #define SMB3_XATTR_CIFS_NTSD "system.smb3_ntsd" /* owner plus DACL */
^8f3ce5b39 (kx 2023-10-28 12:00:06 +0300 46) #define SMB3_XATTR_ATTRIB "smb3.dosattrib" /* full name: user.smb3.dosattrib */
^8f3ce5b39 (kx 2023-10-28 12:00:06 +0300 47) #define SMB3_XATTR_CREATETIME "smb3.creationtime" /* user.smb3.creationtime */
^8f3ce5b39 (kx 2023-10-28 12:00:06 +0300 48) /* BB need to add server (Samba e.g) support for security and trusted prefix */
^8f3ce5b39 (kx 2023-10-28 12:00:06 +0300 49)
^8f3ce5b39 (kx 2023-10-28 12:00:06 +0300 50) enum { XATTR_USER, XATTR_CIFS_ACL, XATTR_ACL_ACCESS, XATTR_ACL_DEFAULT,
^8f3ce5b39 (kx 2023-10-28 12:00:06 +0300 51) XATTR_CIFS_NTSD };
^8f3ce5b39 (kx 2023-10-28 12:00:06 +0300 52)
^8f3ce5b39 (kx 2023-10-28 12:00:06 +0300 53) static int cifs_attrib_set(unsigned int xid, struct cifs_tcon *pTcon,
^8f3ce5b39 (kx 2023-10-28 12:00:06 +0300 54) struct inode *inode, char *full_path,
^8f3ce5b39 (kx 2023-10-28 12:00:06 +0300 55) const void *value, size_t size)
^8f3ce5b39 (kx 2023-10-28 12:00:06 +0300 56) {
^8f3ce5b39 (kx 2023-10-28 12:00:06 +0300 57) ssize_t rc = -EOPNOTSUPP;
^8f3ce5b39 (kx 2023-10-28 12:00:06 +0300 58) __u32 *pattrib = (__u32 *)value;
^8f3ce5b39 (kx 2023-10-28 12:00:06 +0300 59) __u32 attrib;
^8f3ce5b39 (kx 2023-10-28 12:00:06 +0300 60) FILE_BASIC_INFO info_buf;
^8f3ce5b39 (kx 2023-10-28 12:00:06 +0300 61)
^8f3ce5b39 (kx 2023-10-28 12:00:06 +0300 62) if ((value == NULL) || (size != sizeof(__u32)))
^8f3ce5b39 (kx 2023-10-28 12:00:06 +0300 63) return -ERANGE;
^8f3ce5b39 (kx 2023-10-28 12:00:06 +0300 64)
^8f3ce5b39 (kx 2023-10-28 12:00:06 +0300 65) memset(&info_buf, 0, sizeof(info_buf));
^8f3ce5b39 (kx 2023-10-28 12:00:06 +0300 66) attrib = *pattrib;
^8f3ce5b39 (kx 2023-10-28 12:00:06 +0300 67) info_buf.Attributes = cpu_to_le32(attrib);
^8f3ce5b39 (kx 2023-10-28 12:00:06 +0300 68) if (pTcon->ses->server->ops->set_file_info)
^8f3ce5b39 (kx 2023-10-28 12:00:06 +0300 69) rc = pTcon->ses->server->ops->set_file_info(inode, full_path,
^8f3ce5b39 (kx 2023-10-28 12:00:06 +0300 70) &info_buf, xid);
^8f3ce5b39 (kx 2023-10-28 12:00:06 +0300 71) if (rc == 0)
^8f3ce5b39 (kx 2023-10-28 12:00:06 +0300 72) CIFS_I(inode)->cifsAttrs = attrib;
^8f3ce5b39 (kx 2023-10-28 12:00:06 +0300 73)
^8f3ce5b39 (kx 2023-10-28 12:00:06 +0300 74) return rc;
^8f3ce5b39 (kx 2023-10-28 12:00:06 +0300 75) }
^8f3ce5b39 (kx 2023-10-28 12:00:06 +0300 76)
^8f3ce5b39 (kx 2023-10-28 12:00:06 +0300 77) static int cifs_creation_time_set(unsigned int xid, struct cifs_tcon *pTcon,
^8f3ce5b39 (kx 2023-10-28 12:00:06 +0300 78) struct inode *inode, char *full_path,
^8f3ce5b39 (kx 2023-10-28 12:00:06 +0300 79) const void *value, size_t size)
^8f3ce5b39 (kx 2023-10-28 12:00:06 +0300 80) {
^8f3ce5b39 (kx 2023-10-28 12:00:06 +0300 81) ssize_t rc = -EOPNOTSUPP;
^8f3ce5b39 (kx 2023-10-28 12:00:06 +0300 82) __u64 *pcreation_time = (__u64 *)value;
^8f3ce5b39 (kx 2023-10-28 12:00:06 +0300 83) __u64 creation_time;
^8f3ce5b39 (kx 2023-10-28 12:00:06 +0300 84) FILE_BASIC_INFO info_buf;
^8f3ce5b39 (kx 2023-10-28 12:00:06 +0300 85)
^8f3ce5b39 (kx 2023-10-28 12:00:06 +0300 86) if ((value == NULL) || (size != sizeof(__u64)))
^8f3ce5b39 (kx 2023-10-28 12:00:06 +0300 87) return -ERANGE;
^8f3ce5b39 (kx 2023-10-28 12:00:06 +0300 88)
^8f3ce5b39 (kx 2023-10-28 12:00:06 +0300 89) memset(&info_buf, 0, sizeof(info_buf));
^8f3ce5b39 (kx 2023-10-28 12:00:06 +0300 90) creation_time = *pcreation_time;
^8f3ce5b39 (kx 2023-10-28 12:00:06 +0300 91) info_buf.CreationTime = cpu_to_le64(creation_time);
^8f3ce5b39 (kx 2023-10-28 12:00:06 +0300 92) if (pTcon->ses->server->ops->set_file_info)
^8f3ce5b39 (kx 2023-10-28 12:00:06 +0300 93) rc = pTcon->ses->server->ops->set_file_info(inode, full_path,
^8f3ce5b39 (kx 2023-10-28 12:00:06 +0300 94) &info_buf, xid);
^8f3ce5b39 (kx 2023-10-28 12:00:06 +0300 95) if (rc == 0)
^8f3ce5b39 (kx 2023-10-28 12:00:06 +0300 96) CIFS_I(inode)->createtime = creation_time;
^8f3ce5b39 (kx 2023-10-28 12:00:06 +0300 97)
^8f3ce5b39 (kx 2023-10-28 12:00:06 +0300 98) return rc;
^8f3ce5b39 (kx 2023-10-28 12:00:06 +0300 99) }
^8f3ce5b39 (kx 2023-10-28 12:00:06 +0300 100)
^8f3ce5b39 (kx 2023-10-28 12:00:06 +0300 101) static int cifs_xattr_set(const struct xattr_handler *handler,
^8f3ce5b39 (kx 2023-10-28 12:00:06 +0300 102) struct dentry *dentry, struct inode *inode,
^8f3ce5b39 (kx 2023-10-28 12:00:06 +0300 103) const char *name, const void *value,
^8f3ce5b39 (kx 2023-10-28 12:00:06 +0300 104) size_t size, int flags)
^8f3ce5b39 (kx 2023-10-28 12:00:06 +0300 105) {
^8f3ce5b39 (kx 2023-10-28 12:00:06 +0300 106) int rc = -EOPNOTSUPP;
^8f3ce5b39 (kx 2023-10-28 12:00:06 +0300 107) unsigned int xid;
^8f3ce5b39 (kx 2023-10-28 12:00:06 +0300 108) struct super_block *sb = dentry->d_sb;
^8f3ce5b39 (kx 2023-10-28 12:00:06 +0300 109) struct cifs_sb_info *cifs_sb = CIFS_SB(sb);
^8f3ce5b39 (kx 2023-10-28 12:00:06 +0300 110) struct tcon_link *tlink;
^8f3ce5b39 (kx 2023-10-28 12:00:06 +0300 111) struct cifs_tcon *pTcon;
^8f3ce5b39 (kx 2023-10-28 12:00:06 +0300 112) char *full_path;
^8f3ce5b39 (kx 2023-10-28 12:00:06 +0300 113)
^8f3ce5b39 (kx 2023-10-28 12:00:06 +0300 114) tlink = cifs_sb_tlink(cifs_sb);
^8f3ce5b39 (kx 2023-10-28 12:00:06 +0300 115) if (IS_ERR(tlink))
^8f3ce5b39 (kx 2023-10-28 12:00:06 +0300 116) return PTR_ERR(tlink);
^8f3ce5b39 (kx 2023-10-28 12:00:06 +0300 117) pTcon = tlink_tcon(tlink);
^8f3ce5b39 (kx 2023-10-28 12:00:06 +0300 118)
^8f3ce5b39 (kx 2023-10-28 12:00:06 +0300 119) xid = get_xid();
^8f3ce5b39 (kx 2023-10-28 12:00:06 +0300 120)
^8f3ce5b39 (kx 2023-10-28 12:00:06 +0300 121) full_path = build_path_from_dentry(dentry);
^8f3ce5b39 (kx 2023-10-28 12:00:06 +0300 122) if (full_path == NULL) {
^8f3ce5b39 (kx 2023-10-28 12:00:06 +0300 123) rc = -ENOMEM;
^8f3ce5b39 (kx 2023-10-28 12:00:06 +0300 124) goto out;
^8f3ce5b39 (kx 2023-10-28 12:00:06 +0300 125) }
^8f3ce5b39 (kx 2023-10-28 12:00:06 +0300 126) /* return dos attributes as pseudo xattr */
^8f3ce5b39 (kx 2023-10-28 12:00:06 +0300 127) /* return alt name if available as pseudo attr */
^8f3ce5b39 (kx 2023-10-28 12:00:06 +0300 128)
^8f3ce5b39 (kx 2023-10-28 12:00:06 +0300 129) /* if proc/fs/cifs/streamstoxattr is set then
^8f3ce5b39 (kx 2023-10-28 12:00:06 +0300 130) search server for EAs or streams to
^8f3ce5b39 (kx 2023-10-28 12:00:06 +0300 131) returns as xattrs */
^8f3ce5b39 (kx 2023-10-28 12:00:06 +0300 132) if (size > MAX_EA_VALUE_SIZE) {
^8f3ce5b39 (kx 2023-10-28 12:00:06 +0300 133) cifs_dbg(FYI, "size of EA value too large\n");
^8f3ce5b39 (kx 2023-10-28 12:00:06 +0300 134) rc = -EOPNOTSUPP;
^8f3ce5b39 (kx 2023-10-28 12:00:06 +0300 135) goto out;
^8f3ce5b39 (kx 2023-10-28 12:00:06 +0300 136) }
^8f3ce5b39 (kx 2023-10-28 12:00:06 +0300 137)
^8f3ce5b39 (kx 2023-10-28 12:00:06 +0300 138) switch (handler->flags) {
^8f3ce5b39 (kx 2023-10-28 12:00:06 +0300 139) case XATTR_USER:
^8f3ce5b39 (kx 2023-10-28 12:00:06 +0300 140) cifs_dbg(FYI, "%s:setting user xattr %s\n", __func__, name);
^8f3ce5b39 (kx 2023-10-28 12:00:06 +0300 141) if ((strcmp(name, CIFS_XATTR_ATTRIB) == 0) ||
^8f3ce5b39 (kx 2023-10-28 12:00:06 +0300 142) (strcmp(name, SMB3_XATTR_ATTRIB) == 0)) {
^8f3ce5b39 (kx 2023-10-28 12:00:06 +0300 143) rc = cifs_attrib_set(xid, pTcon, inode, full_path,
^8f3ce5b39 (kx 2023-10-28 12:00:06 +0300 144) value, size);
^8f3ce5b39 (kx 2023-10-28 12:00:06 +0300 145) if (rc == 0) /* force revalidate of the inode */
^8f3ce5b39 (kx 2023-10-28 12:00:06 +0300 146) CIFS_I(inode)->time = 0;
^8f3ce5b39 (kx 2023-10-28 12:00:06 +0300 147) break;
^8f3ce5b39 (kx 2023-10-28 12:00:06 +0300 148) } else if ((strcmp(name, CIFS_XATTR_CREATETIME) == 0) ||
^8f3ce5b39 (kx 2023-10-28 12:00:06 +0300 149) (strcmp(name, SMB3_XATTR_CREATETIME) == 0)) {
^8f3ce5b39 (kx 2023-10-28 12:00:06 +0300 150) rc = cifs_creation_time_set(xid, pTcon, inode,
^8f3ce5b39 (kx 2023-10-28 12:00:06 +0300 151) full_path, value, size);
^8f3ce5b39 (kx 2023-10-28 12:00:06 +0300 152) if (rc == 0) /* force revalidate of the inode */
^8f3ce5b39 (kx 2023-10-28 12:00:06 +0300 153) CIFS_I(inode)->time = 0;
^8f3ce5b39 (kx 2023-10-28 12:00:06 +0300 154) break;
^8f3ce5b39 (kx 2023-10-28 12:00:06 +0300 155) }
^8f3ce5b39 (kx 2023-10-28 12:00:06 +0300 156)
^8f3ce5b39 (kx 2023-10-28 12:00:06 +0300 157) if (cifs_sb->mnt_cifs_flags & CIFS_MOUNT_NO_XATTR)
^8f3ce5b39 (kx 2023-10-28 12:00:06 +0300 158) goto out;
^8f3ce5b39 (kx 2023-10-28 12:00:06 +0300 159)
^8f3ce5b39 (kx 2023-10-28 12:00:06 +0300 160) if (pTcon->ses->server->ops->set_EA)
^8f3ce5b39 (kx 2023-10-28 12:00:06 +0300 161) rc = pTcon->ses->server->ops->set_EA(xid, pTcon,
^8f3ce5b39 (kx 2023-10-28 12:00:06 +0300 162) full_path, name, value, (__u16)size,
^8f3ce5b39 (kx 2023-10-28 12:00:06 +0300 163) cifs_sb->local_nls, cifs_sb);
^8f3ce5b39 (kx 2023-10-28 12:00:06 +0300 164) break;
^8f3ce5b39 (kx 2023-10-28 12:00:06 +0300 165)
^8f3ce5b39 (kx 2023-10-28 12:00:06 +0300 166) case XATTR_CIFS_ACL:
^8f3ce5b39 (kx 2023-10-28 12:00:06 +0300 167) case XATTR_CIFS_NTSD: {
^8f3ce5b39 (kx 2023-10-28 12:00:06 +0300 168) struct cifs_ntsd *pacl;
^8f3ce5b39 (kx 2023-10-28 12:00:06 +0300 169)
^8f3ce5b39 (kx 2023-10-28 12:00:06 +0300 170) if (!value)
^8f3ce5b39 (kx 2023-10-28 12:00:06 +0300 171) goto out;
^8f3ce5b39 (kx 2023-10-28 12:00:06 +0300 172) pacl = kmalloc(size, GFP_KERNEL);
^8f3ce5b39 (kx 2023-10-28 12:00:06 +0300 173) if (!pacl) {
^8f3ce5b39 (kx 2023-10-28 12:00:06 +0300 174) rc = -ENOMEM;
^8f3ce5b39 (kx 2023-10-28 12:00:06 +0300 175) } else {
^8f3ce5b39 (kx 2023-10-28 12:00:06 +0300 176) memcpy(pacl, value, size);
^8f3ce5b39 (kx 2023-10-28 12:00:06 +0300 177) if (value &&
^8f3ce5b39 (kx 2023-10-28 12:00:06 +0300 178) pTcon->ses->server->ops->set_acl) {
^8f3ce5b39 (kx 2023-10-28 12:00:06 +0300 179) rc = 0;
^8f3ce5b39 (kx 2023-10-28 12:00:06 +0300 180) if (handler->flags == XATTR_CIFS_NTSD) {
^8f3ce5b39 (kx 2023-10-28 12:00:06 +0300 181) /* set owner and DACL */
^8f3ce5b39 (kx 2023-10-28 12:00:06 +0300 182) rc = pTcon->ses->server->ops->set_acl(
^8f3ce5b39 (kx 2023-10-28 12:00:06 +0300 183) pacl, size, inode,
^8f3ce5b39 (kx 2023-10-28 12:00:06 +0300 184) full_path,
^8f3ce5b39 (kx 2023-10-28 12:00:06 +0300 185) CIFS_ACL_OWNER);
^8f3ce5b39 (kx 2023-10-28 12:00:06 +0300 186) }
^8f3ce5b39 (kx 2023-10-28 12:00:06 +0300 187) if (rc == 0) {
^8f3ce5b39 (kx 2023-10-28 12:00:06 +0300 188) /* set DACL */
^8f3ce5b39 (kx 2023-10-28 12:00:06 +0300 189) rc = pTcon->ses->server->ops->set_acl(
^8f3ce5b39 (kx 2023-10-28 12:00:06 +0300 190) pacl, size, inode,
^8f3ce5b39 (kx 2023-10-28 12:00:06 +0300 191) full_path,
^8f3ce5b39 (kx 2023-10-28 12:00:06 +0300 192) CIFS_ACL_DACL);
^8f3ce5b39 (kx 2023-10-28 12:00:06 +0300 193) }
^8f3ce5b39 (kx 2023-10-28 12:00:06 +0300 194) } else {
^8f3ce5b39 (kx 2023-10-28 12:00:06 +0300 195) rc = -EOPNOTSUPP;
^8f3ce5b39 (kx 2023-10-28 12:00:06 +0300 196) }
^8f3ce5b39 (kx 2023-10-28 12:00:06 +0300 197) if (rc == 0) /* force revalidate of the inode */
^8f3ce5b39 (kx 2023-10-28 12:00:06 +0300 198) CIFS_I(inode)->time = 0;
^8f3ce5b39 (kx 2023-10-28 12:00:06 +0300 199) kfree(pacl);
^8f3ce5b39 (kx 2023-10-28 12:00:06 +0300 200) }
^8f3ce5b39 (kx 2023-10-28 12:00:06 +0300 201) break;
^8f3ce5b39 (kx 2023-10-28 12:00:06 +0300 202) }
^8f3ce5b39 (kx 2023-10-28 12:00:06 +0300 203)
^8f3ce5b39 (kx 2023-10-28 12:00:06 +0300 204) case XATTR_ACL_ACCESS:
^8f3ce5b39 (kx 2023-10-28 12:00:06 +0300 205) #ifdef CONFIG_CIFS_POSIX
^8f3ce5b39 (kx 2023-10-28 12:00:06 +0300 206) if (!value)
^8f3ce5b39 (kx 2023-10-28 12:00:06 +0300 207) goto out;
^8f3ce5b39 (kx 2023-10-28 12:00:06 +0300 208) if (sb->s_flags & SB_POSIXACL)
^8f3ce5b39 (kx 2023-10-28 12:00:06 +0300 209) rc = CIFSSMBSetPosixACL(xid, pTcon, full_path,
^8f3ce5b39 (kx 2023-10-28 12:00:06 +0300 210) value, (const int)size,
^8f3ce5b39 (kx 2023-10-28 12:00:06 +0300 211) ACL_TYPE_ACCESS, cifs_sb->local_nls,
^8f3ce5b39 (kx 2023-10-28 12:00:06 +0300 212) cifs_remap(cifs_sb));
^8f3ce5b39 (kx 2023-10-28 12:00:06 +0300 213) #endif /* CONFIG_CIFS_POSIX */
^8f3ce5b39 (kx 2023-10-28 12:00:06 +0300 214) break;
^8f3ce5b39 (kx 2023-10-28 12:00:06 +0300 215)
^8f3ce5b39 (kx 2023-10-28 12:00:06 +0300 216) case XATTR_ACL_DEFAULT:
^8f3ce5b39 (kx 2023-10-28 12:00:06 +0300 217) #ifdef CONFIG_CIFS_POSIX
^8f3ce5b39 (kx 2023-10-28 12:00:06 +0300 218) if (!value)
^8f3ce5b39 (kx 2023-10-28 12:00:06 +0300 219) goto out;
^8f3ce5b39 (kx 2023-10-28 12:00:06 +0300 220) if (sb->s_flags & SB_POSIXACL)
^8f3ce5b39 (kx 2023-10-28 12:00:06 +0300 221) rc = CIFSSMBSetPosixACL(xid, pTcon, full_path,
^8f3ce5b39 (kx 2023-10-28 12:00:06 +0300 222) value, (const int)size,
^8f3ce5b39 (kx 2023-10-28 12:00:06 +0300 223) ACL_TYPE_DEFAULT, cifs_sb->local_nls,
^8f3ce5b39 (kx 2023-10-28 12:00:06 +0300 224) cifs_remap(cifs_sb));
^8f3ce5b39 (kx 2023-10-28 12:00:06 +0300 225) #endif /* CONFIG_CIFS_POSIX */
^8f3ce5b39 (kx 2023-10-28 12:00:06 +0300 226) break;
^8f3ce5b39 (kx 2023-10-28 12:00:06 +0300 227) }
^8f3ce5b39 (kx 2023-10-28 12:00:06 +0300 228)
^8f3ce5b39 (kx 2023-10-28 12:00:06 +0300 229) out:
^8f3ce5b39 (kx 2023-10-28 12:00:06 +0300 230) kfree(full_path);
^8f3ce5b39 (kx 2023-10-28 12:00:06 +0300 231) free_xid(xid);
^8f3ce5b39 (kx 2023-10-28 12:00:06 +0300 232) cifs_put_tlink(tlink);
^8f3ce5b39 (kx 2023-10-28 12:00:06 +0300 233) return rc;
^8f3ce5b39 (kx 2023-10-28 12:00:06 +0300 234) }
^8f3ce5b39 (kx 2023-10-28 12:00:06 +0300 235)
^8f3ce5b39 (kx 2023-10-28 12:00:06 +0300 236) static int cifs_attrib_get(struct dentry *dentry,
^8f3ce5b39 (kx 2023-10-28 12:00:06 +0300 237) struct inode *inode, void *value,
^8f3ce5b39 (kx 2023-10-28 12:00:06 +0300 238) size_t size)
^8f3ce5b39 (kx 2023-10-28 12:00:06 +0300 239) {
^8f3ce5b39 (kx 2023-10-28 12:00:06 +0300 240) ssize_t rc;
^8f3ce5b39 (kx 2023-10-28 12:00:06 +0300 241) __u32 *pattribute;
^8f3ce5b39 (kx 2023-10-28 12:00:06 +0300 242)
^8f3ce5b39 (kx 2023-10-28 12:00:06 +0300 243) rc = cifs_revalidate_dentry_attr(dentry);
^8f3ce5b39 (kx 2023-10-28 12:00:06 +0300 244)
^8f3ce5b39 (kx 2023-10-28 12:00:06 +0300 245) if (rc)
^8f3ce5b39 (kx 2023-10-28 12:00:06 +0300 246) return rc;
^8f3ce5b39 (kx 2023-10-28 12:00:06 +0300 247)
^8f3ce5b39 (kx 2023-10-28 12:00:06 +0300 248) if ((value == NULL) || (size == 0))
^8f3ce5b39 (kx 2023-10-28 12:00:06 +0300 249) return sizeof(__u32);
^8f3ce5b39 (kx 2023-10-28 12:00:06 +0300 250) else if (size < sizeof(__u32))
^8f3ce5b39 (kx 2023-10-28 12:00:06 +0300 251) return -ERANGE;
^8f3ce5b39 (kx 2023-10-28 12:00:06 +0300 252)
^8f3ce5b39 (kx 2023-10-28 12:00:06 +0300 253) /* return dos attributes as pseudo xattr */
^8f3ce5b39 (kx 2023-10-28 12:00:06 +0300 254) pattribute = (__u32 *)value;
^8f3ce5b39 (kx 2023-10-28 12:00:06 +0300 255) *pattribute = CIFS_I(inode)->cifsAttrs;
^8f3ce5b39 (kx 2023-10-28 12:00:06 +0300 256)
^8f3ce5b39 (kx 2023-10-28 12:00:06 +0300 257) return sizeof(__u32);
^8f3ce5b39 (kx 2023-10-28 12:00:06 +0300 258) }
^8f3ce5b39 (kx 2023-10-28 12:00:06 +0300 259)
^8f3ce5b39 (kx 2023-10-28 12:00:06 +0300 260) static int cifs_creation_time_get(struct dentry *dentry, struct inode *inode,
^8f3ce5b39 (kx 2023-10-28 12:00:06 +0300 261) void *value, size_t size)
^8f3ce5b39 (kx 2023-10-28 12:00:06 +0300 262) {
^8f3ce5b39 (kx 2023-10-28 12:00:06 +0300 263) ssize_t rc;
^8f3ce5b39 (kx 2023-10-28 12:00:06 +0300 264) __u64 *pcreatetime;
^8f3ce5b39 (kx 2023-10-28 12:00:06 +0300 265)
^8f3ce5b39 (kx 2023-10-28 12:00:06 +0300 266) rc = cifs_revalidate_dentry_attr(dentry);
^8f3ce5b39 (kx 2023-10-28 12:00:06 +0300 267) if (rc)
^8f3ce5b39 (kx 2023-10-28 12:00:06 +0300 268) return rc;
^8f3ce5b39 (kx 2023-10-28 12:00:06 +0300 269)
^8f3ce5b39 (kx 2023-10-28 12:00:06 +0300 270) if ((value == NULL) || (size == 0))
^8f3ce5b39 (kx 2023-10-28 12:00:06 +0300 271) return sizeof(__u64);
^8f3ce5b39 (kx 2023-10-28 12:00:06 +0300 272) else if (size < sizeof(__u64))
^8f3ce5b39 (kx 2023-10-28 12:00:06 +0300 273) return -ERANGE;
^8f3ce5b39 (kx 2023-10-28 12:00:06 +0300 274)
^8f3ce5b39 (kx 2023-10-28 12:00:06 +0300 275) /* return dos attributes as pseudo xattr */
^8f3ce5b39 (kx 2023-10-28 12:00:06 +0300 276) pcreatetime = (__u64 *)value;
^8f3ce5b39 (kx 2023-10-28 12:00:06 +0300 277) *pcreatetime = CIFS_I(inode)->createtime;
^8f3ce5b39 (kx 2023-10-28 12:00:06 +0300 278) return sizeof(__u64);
^8f3ce5b39 (kx 2023-10-28 12:00:06 +0300 279) }
^8f3ce5b39 (kx 2023-10-28 12:00:06 +0300 280)
^8f3ce5b39 (kx 2023-10-28 12:00:06 +0300 281)
^8f3ce5b39 (kx 2023-10-28 12:00:06 +0300 282) static int cifs_xattr_get(const struct xattr_handler *handler,
^8f3ce5b39 (kx 2023-10-28 12:00:06 +0300 283) struct dentry *dentry, struct inode *inode,
^8f3ce5b39 (kx 2023-10-28 12:00:06 +0300 284) const char *name, void *value, size_t size, int flags)
^8f3ce5b39 (kx 2023-10-28 12:00:06 +0300 285) {
^8f3ce5b39 (kx 2023-10-28 12:00:06 +0300 286) ssize_t rc = -EOPNOTSUPP;
^8f3ce5b39 (kx 2023-10-28 12:00:06 +0300 287) unsigned int xid;
^8f3ce5b39 (kx 2023-10-28 12:00:06 +0300 288) struct super_block *sb = dentry->d_sb;
^8f3ce5b39 (kx 2023-10-28 12:00:06 +0300 289) struct cifs_sb_info *cifs_sb = CIFS_SB(sb);
^8f3ce5b39 (kx 2023-10-28 12:00:06 +0300 290) struct tcon_link *tlink;
^8f3ce5b39 (kx 2023-10-28 12:00:06 +0300 291) struct cifs_tcon *pTcon;
^8f3ce5b39 (kx 2023-10-28 12:00:06 +0300 292) char *full_path;
^8f3ce5b39 (kx 2023-10-28 12:00:06 +0300 293)
^8f3ce5b39 (kx 2023-10-28 12:00:06 +0300 294) tlink = cifs_sb_tlink(cifs_sb);
^8f3ce5b39 (kx 2023-10-28 12:00:06 +0300 295) if (IS_ERR(tlink))
^8f3ce5b39 (kx 2023-10-28 12:00:06 +0300 296) return PTR_ERR(tlink);
^8f3ce5b39 (kx 2023-10-28 12:00:06 +0300 297) pTcon = tlink_tcon(tlink);
^8f3ce5b39 (kx 2023-10-28 12:00:06 +0300 298)
^8f3ce5b39 (kx 2023-10-28 12:00:06 +0300 299) xid = get_xid();
^8f3ce5b39 (kx 2023-10-28 12:00:06 +0300 300)
^8f3ce5b39 (kx 2023-10-28 12:00:06 +0300 301) full_path = build_path_from_dentry(dentry);
^8f3ce5b39 (kx 2023-10-28 12:00:06 +0300 302) if (full_path == NULL) {
^8f3ce5b39 (kx 2023-10-28 12:00:06 +0300 303) rc = -ENOMEM;
^8f3ce5b39 (kx 2023-10-28 12:00:06 +0300 304) goto out;
^8f3ce5b39 (kx 2023-10-28 12:00:06 +0300 305) }
^8f3ce5b39 (kx 2023-10-28 12:00:06 +0300 306)
^8f3ce5b39 (kx 2023-10-28 12:00:06 +0300 307) /* return alt name if available as pseudo attr */
^8f3ce5b39 (kx 2023-10-28 12:00:06 +0300 308) switch (handler->flags) {
^8f3ce5b39 (kx 2023-10-28 12:00:06 +0300 309) case XATTR_USER:
^8f3ce5b39 (kx 2023-10-28 12:00:06 +0300 310) cifs_dbg(FYI, "%s:querying user xattr %s\n", __func__, name);
^8f3ce5b39 (kx 2023-10-28 12:00:06 +0300 311) if ((strcmp(name, CIFS_XATTR_ATTRIB) == 0) ||
^8f3ce5b39 (kx 2023-10-28 12:00:06 +0300 312) (strcmp(name, SMB3_XATTR_ATTRIB) == 0)) {
^8f3ce5b39 (kx 2023-10-28 12:00:06 +0300 313) rc = cifs_attrib_get(dentry, inode, value, size);
^8f3ce5b39 (kx 2023-10-28 12:00:06 +0300 314) break;
^8f3ce5b39 (kx 2023-10-28 12:00:06 +0300 315) } else if ((strcmp(name, CIFS_XATTR_CREATETIME) == 0) ||
^8f3ce5b39 (kx 2023-10-28 12:00:06 +0300 316) (strcmp(name, SMB3_XATTR_CREATETIME) == 0)) {
^8f3ce5b39 (kx 2023-10-28 12:00:06 +0300 317) rc = cifs_creation_time_get(dentry, inode, value, size);
^8f3ce5b39 (kx 2023-10-28 12:00:06 +0300 318) break;
^8f3ce5b39 (kx 2023-10-28 12:00:06 +0300 319) }
^8f3ce5b39 (kx 2023-10-28 12:00:06 +0300 320)
^8f3ce5b39 (kx 2023-10-28 12:00:06 +0300 321) if (cifs_sb->mnt_cifs_flags & CIFS_MOUNT_NO_XATTR)
^8f3ce5b39 (kx 2023-10-28 12:00:06 +0300 322) goto out;
^8f3ce5b39 (kx 2023-10-28 12:00:06 +0300 323)
^8f3ce5b39 (kx 2023-10-28 12:00:06 +0300 324) if (pTcon->ses->server->ops->query_all_EAs)
^8f3ce5b39 (kx 2023-10-28 12:00:06 +0300 325) rc = pTcon->ses->server->ops->query_all_EAs(xid, pTcon,
^8f3ce5b39 (kx 2023-10-28 12:00:06 +0300 326) full_path, name, value, size, cifs_sb);
^8f3ce5b39 (kx 2023-10-28 12:00:06 +0300 327) break;
^8f3ce5b39 (kx 2023-10-28 12:00:06 +0300 328)
^8f3ce5b39 (kx 2023-10-28 12:00:06 +0300 329) case XATTR_CIFS_ACL:
^8f3ce5b39 (kx 2023-10-28 12:00:06 +0300 330) case XATTR_CIFS_NTSD: {
^8f3ce5b39 (kx 2023-10-28 12:00:06 +0300 331) /* the whole ntsd is fetched regardless */
^8f3ce5b39 (kx 2023-10-28 12:00:06 +0300 332) u32 acllen;
^8f3ce5b39 (kx 2023-10-28 12:00:06 +0300 333) struct cifs_ntsd *pacl;
^8f3ce5b39 (kx 2023-10-28 12:00:06 +0300 334)
^8f3ce5b39 (kx 2023-10-28 12:00:06 +0300 335) if (pTcon->ses->server->ops->get_acl == NULL)
^8f3ce5b39 (kx 2023-10-28 12:00:06 +0300 336) goto out; /* rc already EOPNOTSUPP */
^8f3ce5b39 (kx 2023-10-28 12:00:06 +0300 337)
^8f3ce5b39 (kx 2023-10-28 12:00:06 +0300 338) pacl = pTcon->ses->server->ops->get_acl(cifs_sb,
^8f3ce5b39 (kx 2023-10-28 12:00:06 +0300 339) inode, full_path, &acllen);
^8f3ce5b39 (kx 2023-10-28 12:00:06 +0300 340) if (IS_ERR(pacl)) {
^8f3ce5b39 (kx 2023-10-28 12:00:06 +0300 341) rc = PTR_ERR(pacl);
^8f3ce5b39 (kx 2023-10-28 12:00:06 +0300 342) cifs_dbg(VFS, "%s: error %zd getting sec desc\n",
^8f3ce5b39 (kx 2023-10-28 12:00:06 +0300 343) __func__, rc);
^8f3ce5b39 (kx 2023-10-28 12:00:06 +0300 344) } else {
^8f3ce5b39 (kx 2023-10-28 12:00:06 +0300 345) if (value) {
^8f3ce5b39 (kx 2023-10-28 12:00:06 +0300 346) if (acllen > size)
^8f3ce5b39 (kx 2023-10-28 12:00:06 +0300 347) acllen = -ERANGE;
^8f3ce5b39 (kx 2023-10-28 12:00:06 +0300 348) else
^8f3ce5b39 (kx 2023-10-28 12:00:06 +0300 349) memcpy(value, pacl, acllen);
^8f3ce5b39 (kx 2023-10-28 12:00:06 +0300 350) }
^8f3ce5b39 (kx 2023-10-28 12:00:06 +0300 351) rc = acllen;
^8f3ce5b39 (kx 2023-10-28 12:00:06 +0300 352) kfree(pacl);
^8f3ce5b39 (kx 2023-10-28 12:00:06 +0300 353) }
^8f3ce5b39 (kx 2023-10-28 12:00:06 +0300 354) break;
^8f3ce5b39 (kx 2023-10-28 12:00:06 +0300 355) }
^8f3ce5b39 (kx 2023-10-28 12:00:06 +0300 356)
^8f3ce5b39 (kx 2023-10-28 12:00:06 +0300 357) case XATTR_ACL_ACCESS:
^8f3ce5b39 (kx 2023-10-28 12:00:06 +0300 358) #ifdef CONFIG_CIFS_POSIX
^8f3ce5b39 (kx 2023-10-28 12:00:06 +0300 359) if (sb->s_flags & SB_POSIXACL)
^8f3ce5b39 (kx 2023-10-28 12:00:06 +0300 360) rc = CIFSSMBGetPosixACL(xid, pTcon, full_path,
^8f3ce5b39 (kx 2023-10-28 12:00:06 +0300 361) value, size, ACL_TYPE_ACCESS,
^8f3ce5b39 (kx 2023-10-28 12:00:06 +0300 362) cifs_sb->local_nls,
^8f3ce5b39 (kx 2023-10-28 12:00:06 +0300 363) cifs_remap(cifs_sb));
^8f3ce5b39 (kx 2023-10-28 12:00:06 +0300 364) #endif /* CONFIG_CIFS_POSIX */
^8f3ce5b39 (kx 2023-10-28 12:00:06 +0300 365) break;
^8f3ce5b39 (kx 2023-10-28 12:00:06 +0300 366)
^8f3ce5b39 (kx 2023-10-28 12:00:06 +0300 367) case XATTR_ACL_DEFAULT:
^8f3ce5b39 (kx 2023-10-28 12:00:06 +0300 368) #ifdef CONFIG_CIFS_POSIX
^8f3ce5b39 (kx 2023-10-28 12:00:06 +0300 369) if (sb->s_flags & SB_POSIXACL)
^8f3ce5b39 (kx 2023-10-28 12:00:06 +0300 370) rc = CIFSSMBGetPosixACL(xid, pTcon, full_path,
^8f3ce5b39 (kx 2023-10-28 12:00:06 +0300 371) value, size, ACL_TYPE_DEFAULT,
^8f3ce5b39 (kx 2023-10-28 12:00:06 +0300 372) cifs_sb->local_nls,
^8f3ce5b39 (kx 2023-10-28 12:00:06 +0300 373) cifs_remap(cifs_sb));
^8f3ce5b39 (kx 2023-10-28 12:00:06 +0300 374) #endif /* CONFIG_CIFS_POSIX */
^8f3ce5b39 (kx 2023-10-28 12:00:06 +0300 375) break;
^8f3ce5b39 (kx 2023-10-28 12:00:06 +0300 376) }
^8f3ce5b39 (kx 2023-10-28 12:00:06 +0300 377)
^8f3ce5b39 (kx 2023-10-28 12:00:06 +0300 378) /* We could add an additional check for streams ie
^8f3ce5b39 (kx 2023-10-28 12:00:06 +0300 379) if proc/fs/cifs/streamstoxattr is set then
^8f3ce5b39 (kx 2023-10-28 12:00:06 +0300 380) search server for EAs or streams to
^8f3ce5b39 (kx 2023-10-28 12:00:06 +0300 381) returns as xattrs */
^8f3ce5b39 (kx 2023-10-28 12:00:06 +0300 382)
^8f3ce5b39 (kx 2023-10-28 12:00:06 +0300 383) if (rc == -EINVAL)
^8f3ce5b39 (kx 2023-10-28 12:00:06 +0300 384) rc = -EOPNOTSUPP;
^8f3ce5b39 (kx 2023-10-28 12:00:06 +0300 385)
^8f3ce5b39 (kx 2023-10-28 12:00:06 +0300 386) out:
^8f3ce5b39 (kx 2023-10-28 12:00:06 +0300 387) kfree(full_path);
^8f3ce5b39 (kx 2023-10-28 12:00:06 +0300 388) free_xid(xid);
^8f3ce5b39 (kx 2023-10-28 12:00:06 +0300 389) cifs_put_tlink(tlink);
^8f3ce5b39 (kx 2023-10-28 12:00:06 +0300 390) return rc;
^8f3ce5b39 (kx 2023-10-28 12:00:06 +0300 391) }
^8f3ce5b39 (kx 2023-10-28 12:00:06 +0300 392)
^8f3ce5b39 (kx 2023-10-28 12:00:06 +0300 393) ssize_t cifs_listxattr(struct dentry *direntry, char *data, size_t buf_size)
^8f3ce5b39 (kx 2023-10-28 12:00:06 +0300 394) {
^8f3ce5b39 (kx 2023-10-28 12:00:06 +0300 395) ssize_t rc = -EOPNOTSUPP;
^8f3ce5b39 (kx 2023-10-28 12:00:06 +0300 396) unsigned int xid;
^8f3ce5b39 (kx 2023-10-28 12:00:06 +0300 397) struct cifs_sb_info *cifs_sb = CIFS_SB(direntry->d_sb);
^8f3ce5b39 (kx 2023-10-28 12:00:06 +0300 398) struct tcon_link *tlink;
^8f3ce5b39 (kx 2023-10-28 12:00:06 +0300 399) struct cifs_tcon *pTcon;
^8f3ce5b39 (kx 2023-10-28 12:00:06 +0300 400) char *full_path;
^8f3ce5b39 (kx 2023-10-28 12:00:06 +0300 401)
^8f3ce5b39 (kx 2023-10-28 12:00:06 +0300 402) if (cifs_sb->mnt_cifs_flags & CIFS_MOUNT_NO_XATTR)
^8f3ce5b39 (kx 2023-10-28 12:00:06 +0300 403) return -EOPNOTSUPP;
^8f3ce5b39 (kx 2023-10-28 12:00:06 +0300 404)
^8f3ce5b39 (kx 2023-10-28 12:00:06 +0300 405) tlink = cifs_sb_tlink(cifs_sb);
^8f3ce5b39 (kx 2023-10-28 12:00:06 +0300 406) if (IS_ERR(tlink))
^8f3ce5b39 (kx 2023-10-28 12:00:06 +0300 407) return PTR_ERR(tlink);
^8f3ce5b39 (kx 2023-10-28 12:00:06 +0300 408) pTcon = tlink_tcon(tlink);
^8f3ce5b39 (kx 2023-10-28 12:00:06 +0300 409)
^8f3ce5b39 (kx 2023-10-28 12:00:06 +0300 410) xid = get_xid();
^8f3ce5b39 (kx 2023-10-28 12:00:06 +0300 411)
^8f3ce5b39 (kx 2023-10-28 12:00:06 +0300 412) full_path = build_path_from_dentry(direntry);
^8f3ce5b39 (kx 2023-10-28 12:00:06 +0300 413) if (full_path == NULL) {
^8f3ce5b39 (kx 2023-10-28 12:00:06 +0300 414) rc = -ENOMEM;
^8f3ce5b39 (kx 2023-10-28 12:00:06 +0300 415) goto list_ea_exit;
^8f3ce5b39 (kx 2023-10-28 12:00:06 +0300 416) }
^8f3ce5b39 (kx 2023-10-28 12:00:06 +0300 417) /* return dos attributes as pseudo xattr */
^8f3ce5b39 (kx 2023-10-28 12:00:06 +0300 418) /* return alt name if available as pseudo attr */
^8f3ce5b39 (kx 2023-10-28 12:00:06 +0300 419)
^8f3ce5b39 (kx 2023-10-28 12:00:06 +0300 420) /* if proc/fs/cifs/streamstoxattr is set then
^8f3ce5b39 (kx 2023-10-28 12:00:06 +0300 421) search server for EAs or streams to
^8f3ce5b39 (kx 2023-10-28 12:00:06 +0300 422) returns as xattrs */
^8f3ce5b39 (kx 2023-10-28 12:00:06 +0300 423)
^8f3ce5b39 (kx 2023-10-28 12:00:06 +0300 424) if (pTcon->ses->server->ops->query_all_EAs)
^8f3ce5b39 (kx 2023-10-28 12:00:06 +0300 425) rc = pTcon->ses->server->ops->query_all_EAs(xid, pTcon,
^8f3ce5b39 (kx 2023-10-28 12:00:06 +0300 426) full_path, NULL, data, buf_size, cifs_sb);
^8f3ce5b39 (kx 2023-10-28 12:00:06 +0300 427) list_ea_exit:
^8f3ce5b39 (kx 2023-10-28 12:00:06 +0300 428) kfree(full_path);
^8f3ce5b39 (kx 2023-10-28 12:00:06 +0300 429) free_xid(xid);
^8f3ce5b39 (kx 2023-10-28 12:00:06 +0300 430) cifs_put_tlink(tlink);
^8f3ce5b39 (kx 2023-10-28 12:00:06 +0300 431) return rc;
^8f3ce5b39 (kx 2023-10-28 12:00:06 +0300 432) }
^8f3ce5b39 (kx 2023-10-28 12:00:06 +0300 433)
^8f3ce5b39 (kx 2023-10-28 12:00:06 +0300 434) static const struct xattr_handler cifs_user_xattr_handler = {
^8f3ce5b39 (kx 2023-10-28 12:00:06 +0300 435) .prefix = XATTR_USER_PREFIX,
^8f3ce5b39 (kx 2023-10-28 12:00:06 +0300 436) .flags = XATTR_USER,
^8f3ce5b39 (kx 2023-10-28 12:00:06 +0300 437) .get = cifs_xattr_get,
^8f3ce5b39 (kx 2023-10-28 12:00:06 +0300 438) .set = cifs_xattr_set,
^8f3ce5b39 (kx 2023-10-28 12:00:06 +0300 439) };
^8f3ce5b39 (kx 2023-10-28 12:00:06 +0300 440)
^8f3ce5b39 (kx 2023-10-28 12:00:06 +0300 441) /* os2.* attributes are treated like user.* attributes */
^8f3ce5b39 (kx 2023-10-28 12:00:06 +0300 442) static const struct xattr_handler cifs_os2_xattr_handler = {
^8f3ce5b39 (kx 2023-10-28 12:00:06 +0300 443) .prefix = XATTR_OS2_PREFIX,
^8f3ce5b39 (kx 2023-10-28 12:00:06 +0300 444) .flags = XATTR_USER,
^8f3ce5b39 (kx 2023-10-28 12:00:06 +0300 445) .get = cifs_xattr_get,
^8f3ce5b39 (kx 2023-10-28 12:00:06 +0300 446) .set = cifs_xattr_set,
^8f3ce5b39 (kx 2023-10-28 12:00:06 +0300 447) };
^8f3ce5b39 (kx 2023-10-28 12:00:06 +0300 448)
^8f3ce5b39 (kx 2023-10-28 12:00:06 +0300 449) static const struct xattr_handler cifs_cifs_acl_xattr_handler = {
^8f3ce5b39 (kx 2023-10-28 12:00:06 +0300 450) .name = CIFS_XATTR_CIFS_ACL,
^8f3ce5b39 (kx 2023-10-28 12:00:06 +0300 451) .flags = XATTR_CIFS_ACL,
^8f3ce5b39 (kx 2023-10-28 12:00:06 +0300 452) .get = cifs_xattr_get,
^8f3ce5b39 (kx 2023-10-28 12:00:06 +0300 453) .set = cifs_xattr_set,
^8f3ce5b39 (kx 2023-10-28 12:00:06 +0300 454) };
^8f3ce5b39 (kx 2023-10-28 12:00:06 +0300 455)
^8f3ce5b39 (kx 2023-10-28 12:00:06 +0300 456) /*
^8f3ce5b39 (kx 2023-10-28 12:00:06 +0300 457) * Although this is just an alias for the above, need to move away from
^8f3ce5b39 (kx 2023-10-28 12:00:06 +0300 458) * confusing users and using the 20 year old term 'cifs' when it is no
^8f3ce5b39 (kx 2023-10-28 12:00:06 +0300 459) * longer secure and was replaced by SMB2/SMB3 a long time ago, and
^8f3ce5b39 (kx 2023-10-28 12:00:06 +0300 460) * SMB3 and later are highly secure.
^8f3ce5b39 (kx 2023-10-28 12:00:06 +0300 461) */
^8f3ce5b39 (kx 2023-10-28 12:00:06 +0300 462) static const struct xattr_handler smb3_acl_xattr_handler = {
^8f3ce5b39 (kx 2023-10-28 12:00:06 +0300 463) .name = SMB3_XATTR_CIFS_ACL,
^8f3ce5b39 (kx 2023-10-28 12:00:06 +0300 464) .flags = XATTR_CIFS_ACL,
^8f3ce5b39 (kx 2023-10-28 12:00:06 +0300 465) .get = cifs_xattr_get,
^8f3ce5b39 (kx 2023-10-28 12:00:06 +0300 466) .set = cifs_xattr_set,
^8f3ce5b39 (kx 2023-10-28 12:00:06 +0300 467) };
^8f3ce5b39 (kx 2023-10-28 12:00:06 +0300 468)
^8f3ce5b39 (kx 2023-10-28 12:00:06 +0300 469) static const struct xattr_handler cifs_cifs_ntsd_xattr_handler = {
^8f3ce5b39 (kx 2023-10-28 12:00:06 +0300 470) .name = CIFS_XATTR_CIFS_NTSD,
^8f3ce5b39 (kx 2023-10-28 12:00:06 +0300 471) .flags = XATTR_CIFS_NTSD,
^8f3ce5b39 (kx 2023-10-28 12:00:06 +0300 472) .get = cifs_xattr_get,
^8f3ce5b39 (kx 2023-10-28 12:00:06 +0300 473) .set = cifs_xattr_set,
^8f3ce5b39 (kx 2023-10-28 12:00:06 +0300 474) };
^8f3ce5b39 (kx 2023-10-28 12:00:06 +0300 475)
^8f3ce5b39 (kx 2023-10-28 12:00:06 +0300 476) /*
^8f3ce5b39 (kx 2023-10-28 12:00:06 +0300 477) * Although this is just an alias for the above, need to move away from
^8f3ce5b39 (kx 2023-10-28 12:00:06 +0300 478) * confusing users and using the 20 year old term 'cifs' when it is no
^8f3ce5b39 (kx 2023-10-28 12:00:06 +0300 479) * longer secure and was replaced by SMB2/SMB3 a long time ago, and
^8f3ce5b39 (kx 2023-10-28 12:00:06 +0300 480) * SMB3 and later are highly secure.
^8f3ce5b39 (kx 2023-10-28 12:00:06 +0300 481) */
^8f3ce5b39 (kx 2023-10-28 12:00:06 +0300 482) static const struct xattr_handler smb3_ntsd_xattr_handler = {
^8f3ce5b39 (kx 2023-10-28 12:00:06 +0300 483) .name = SMB3_XATTR_CIFS_NTSD,
^8f3ce5b39 (kx 2023-10-28 12:00:06 +0300 484) .flags = XATTR_CIFS_NTSD,
^8f3ce5b39 (kx 2023-10-28 12:00:06 +0300 485) .get = cifs_xattr_get,
^8f3ce5b39 (kx 2023-10-28 12:00:06 +0300 486) .set = cifs_xattr_set,
^8f3ce5b39 (kx 2023-10-28 12:00:06 +0300 487) };
^8f3ce5b39 (kx 2023-10-28 12:00:06 +0300 488)
^8f3ce5b39 (kx 2023-10-28 12:00:06 +0300 489) static const struct xattr_handler cifs_posix_acl_access_xattr_handler = {
^8f3ce5b39 (kx 2023-10-28 12:00:06 +0300 490) .name = XATTR_NAME_POSIX_ACL_ACCESS,
^8f3ce5b39 (kx 2023-10-28 12:00:06 +0300 491) .flags = XATTR_ACL_ACCESS,
^8f3ce5b39 (kx 2023-10-28 12:00:06 +0300 492) .get = cifs_xattr_get,
^8f3ce5b39 (kx 2023-10-28 12:00:06 +0300 493) .set = cifs_xattr_set,
^8f3ce5b39 (kx 2023-10-28 12:00:06 +0300 494) };
^8f3ce5b39 (kx 2023-10-28 12:00:06 +0300 495)
^8f3ce5b39 (kx 2023-10-28 12:00:06 +0300 496) static const struct xattr_handler cifs_posix_acl_default_xattr_handler = {
^8f3ce5b39 (kx 2023-10-28 12:00:06 +0300 497) .name = XATTR_NAME_POSIX_ACL_DEFAULT,
^8f3ce5b39 (kx 2023-10-28 12:00:06 +0300 498) .flags = XATTR_ACL_DEFAULT,
^8f3ce5b39 (kx 2023-10-28 12:00:06 +0300 499) .get = cifs_xattr_get,
^8f3ce5b39 (kx 2023-10-28 12:00:06 +0300 500) .set = cifs_xattr_set,
^8f3ce5b39 (kx 2023-10-28 12:00:06 +0300 501) };
^8f3ce5b39 (kx 2023-10-28 12:00:06 +0300 502)
^8f3ce5b39 (kx 2023-10-28 12:00:06 +0300 503) const struct xattr_handler *cifs_xattr_handlers[] = {
^8f3ce5b39 (kx 2023-10-28 12:00:06 +0300 504) &cifs_user_xattr_handler,
^8f3ce5b39 (kx 2023-10-28 12:00:06 +0300 505) &cifs_os2_xattr_handler,
^8f3ce5b39 (kx 2023-10-28 12:00:06 +0300 506) &cifs_cifs_acl_xattr_handler,
^8f3ce5b39 (kx 2023-10-28 12:00:06 +0300 507) &smb3_acl_xattr_handler, /* alias for above since avoiding "cifs" */
^8f3ce5b39 (kx 2023-10-28 12:00:06 +0300 508) &cifs_cifs_ntsd_xattr_handler,
^8f3ce5b39 (kx 2023-10-28 12:00:06 +0300 509) &smb3_ntsd_xattr_handler, /* alias for above since avoiding "cifs" */
^8f3ce5b39 (kx 2023-10-28 12:00:06 +0300 510) &cifs_posix_acl_access_xattr_handler,
^8f3ce5b39 (kx 2023-10-28 12:00:06 +0300 511) &cifs_posix_acl_default_xattr_handler,
^8f3ce5b39 (kx 2023-10-28 12:00:06 +0300 512) NULL
^8f3ce5b39 (kx 2023-10-28 12:00:06 +0300 513) };
Orange Pi5 kernel
Deprecated Linux kernel 5.10.110 for OrangePi 5/5B/5+ boards
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