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![]() In preparation for removing security_old_inode_init_security(), switch to security_inode_init_security(). Extend the existing ocfs2_initxattrs() to take the ocfs2_security_xattr_info structure from fs_info, and populate the name/value/len triple with the first xattr provided by LSMs. As fs_info was not used before, ocfs2_initxattrs() can now handle the case of replicating the behavior of security_old_inode_init_security(), i.e. just obtaining the xattr, in addition to setting all xattrs provided by LSMs. Supporting multiple xattrs is not currently supported where security_old_inode_init_security() was called (mknod, symlink), as it requires non-trivial changes that can be done at a later time. Like for reiserfs, even if EVM is invoked, it will not provide an xattr (if it is not the first to set it, its xattr will be discarded; if it is the first, it does not have xattrs to calculate the HMAC on). Finally, since security_inode_init_security(), unlike security_old_inode_init_security(), returns zero instead of -EOPNOTSUPP if no xattrs were provided by LSMs or if inodes are private, additionally check in ocfs2_init_security_get() if the xattr name is set. If not, act as if security_old_inode_init_security() returned -EOPNOTSUPP, and set si->enable to zero to notify to the functions following ocfs2_init_security_get() that no xattrs are available. Signed-off-by: Roberto Sassu <roberto.sassu@huawei.com> Reviewed-by: Casey Schaufler <casey@schaufler-ca.com> Acked-by: Joseph Qi <joseph.qi@linux.alibaba.com> Reviewed-by: Mimi Zohar <zohar@linux.ibm.com> Signed-off-by: Paul Moore <paul@paul-moore.com> |
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.. | ||
cluster | ||
dlm | ||
dlmfs | ||
acl.c | ||
acl.h | ||
alloc.c | ||
alloc.h | ||
aops.c | ||
aops.h | ||
blockcheck.c | ||
blockcheck.h | ||
buffer_head_io.c | ||
buffer_head_io.h | ||
dcache.c | ||
dcache.h | ||
dir.c | ||
dir.h | ||
dlmglue.c | ||
dlmglue.h | ||
export.c | ||
export.h | ||
extent_map.c | ||
extent_map.h | ||
file.c | ||
file.h | ||
filecheck.c | ||
filecheck.h | ||
heartbeat.c | ||
heartbeat.h | ||
inode.c | ||
inode.h | ||
ioctl.c | ||
ioctl.h | ||
journal.c | ||
journal.h | ||
Kconfig | ||
localalloc.c | ||
localalloc.h | ||
locks.c | ||
locks.h | ||
Makefile | ||
mmap.c | ||
mmap.h | ||
move_extents.c | ||
move_extents.h | ||
namei.c | ||
namei.h | ||
ocfs1_fs_compat.h | ||
ocfs2.h | ||
ocfs2_fs.h | ||
ocfs2_ioctl.h | ||
ocfs2_lockid.h | ||
ocfs2_lockingver.h | ||
ocfs2_trace.h | ||
quota.h | ||
quota_global.c | ||
quota_local.c | ||
refcounttree.c | ||
refcounttree.h | ||
reservations.c | ||
reservations.h | ||
resize.c | ||
resize.h | ||
slot_map.c | ||
slot_map.h | ||
stack_o2cb.c | ||
stack_user.c | ||
stackglue.c | ||
stackglue.h | ||
suballoc.c | ||
suballoc.h | ||
super.c | ||
super.h | ||
symlink.c | ||
symlink.h | ||
sysfile.c | ||
sysfile.h | ||
uptodate.c | ||
uptodate.h | ||
xattr.c | ||
xattr.h |