/* * Copyright (C) Sistina Software, Inc. 1997-2003 All rights reserved. * Copyright (C) 2004-2006 Red Hat, Inc. All rights reserved. * * This copyrighted material is made available to anyone wishing to use, * modify, copy, or redistribute it subject to the terms and conditions * of the GNU General Public License version 2. */ #include #include #include #include #include #include #include #include #include #include "gfs2.h" #include "incore.h" #include "acl.h" #include "xattr.h" #include "glock.h" #include "inode.h" #include "meta_io.h" #include "rgrp.h" #include "trans.h" #include "util.h" static const char *gfs2_acl_name(int type) { switch (type) { case ACL_TYPE_ACCESS: return XATTR_POSIX_ACL_ACCESS; case ACL_TYPE_DEFAULT: return XATTR_POSIX_ACL_DEFAULT; } return NULL; } static struct posix_acl *__gfs2_get_acl(struct inode *inode, int type) { struct gfs2_inode *ip = GFS2_I(inode); struct posix_acl *acl; const char *name; char *data; int len; if (!ip->i_eattr) return NULL; name = gfs2_acl_name(type); len = gfs2_xattr_acl_get(ip, name, &data); if (len <= 0) return ERR_PTR(len); acl = posix_acl_from_xattr(&init_user_ns, data, len); kfree(data); return acl; } struct posix_acl *gfs2_get_acl(struct inode *inode, int type) { struct gfs2_inode *ip = GFS2_I(inode); struct gfs2_holder gh; bool need_unlock = false; struct posix_acl *acl; if (!gfs2_glock_is_locked_by_me(ip->i_gl)) { int ret = gfs2_glock_nq_init(ip->i_gl, LM_ST_SHARED, LM_FLAG_ANY, &gh); if (ret) return ERR_PTR(ret); need_unlock = true; } acl = __gfs2_get_acl(inode, type); if (need_unlock) gfs2_glock_dq_uninit(&gh); return acl; } int __gfs2_set_acl(struct inode *inode, struct posix_acl *acl, int type) { int error; int len; char *data; const char *name = gfs2_acl_name(type); if (acl && acl->a_count > GFS2_ACL_MAX_ENTRIES(GFS2_SB(inode))) return -E2BIG; if (type == ACL_TYPE_ACCESS) { umode_t mode = inode->i_mode; error = posix_acl_update_mode(inode, &inode->i_mode, &acl); if (error) return error; if (mode != inode->i_mode) mark_inode_dirty(inode); } if (acl) { len = posix_acl_to_xattr(&init_user_ns, acl, NULL, 0); if (len == 0) return 0; data = kmalloc(len, GFP_NOFS); if (data == NULL) return -ENOMEM; error = posix_acl_to_xattr(&init_user_ns, acl, data, len); if (error < 0) goto out; } else { data = NULL; len = 0; } error = __gfs2_xattr_set(inode, name, data, len, 0, GFS2_EATYPE_SYS); if (error) goto out; set_cached_acl(inode, type, acl); out: kfree(data); return error; } int gfs2_set_acl(struct inode *inode, struct posix_acl *acl, int type) { struct gfs2_inode *ip = GFS2_I(inode); struct gfs2_holder gh; bool need_unlock = false; int ret; ret = gfs2_rsqa_alloc(ip); if (ret) return ret; if (!gfs2_glock_is_locked_by_me(ip->i_gl)) { ret = gfs2_glock_nq_init(ip->i_gl, LM_ST_EXCLUSIVE, 0, &gh); if (ret) return ret; need_unlock = true; } ret = __gfs2_set_acl(inode, acl, type); if (need_unlock) gfs2_glock_dq_uninit(&gh); return ret; } nohover'>ModeNameSize -rw-r--r--ib.h3386log plain -rw-r--r--ib_addr.h10042log plain -rw-r--r--ib_cache.h6375log plain -rw-r--r--ib_cm.h19359log plain -rw-r--r--ib_fmr_pool.h3439log plain -rw-r--r--ib_hdrs.h4989log plain -rw-r--r--ib_mad.h27924log plain -rw-r--r--ib_marshall.h2025log plain -rw-r--r--ib_pack.h9047log plain -rw-r--r--ib_pma.h5579log plain -rw-r--r--ib_sa.h16914log plain -rw-r--r--ib_smi.h5633log plain -rw-r--r--ib_umem.h3577log plain -rw-r--r--ib_umem_odp.h5300log plain -rw-r--r--ib_verbs.h100225log plain -rw-r--r--iw_cm.h8793log plain -rw-r--r--iw_portmap.h7688log plain -rw-r--r--mr_pool.h954log plain -rw-r--r--opa_port_info.h15063log plain -rw-r--r--opa_smi.h4417log plain