static int mdt_create_unpack(struct mdt_thread_info *info)
{
struct md_ucred *uc = mdt_ucred(info);
struct mdt_rec_create *rec;
struct lu_attr *attr = &info->mti_attr.ma_attr;
struct mdt_reint_record *rr = &info->mti_rr;
struct req_capsule *pill = info->mti_pill;
struct md_op_spec *sp = &info->mti_spec;
int rc;
ENTRY;
CLASSERT(sizeof(struct mdt_rec_create) == sizeof(struct mdt_rec_reint));
rec = req_capsule_client_get(pill, &RMF_REC_REINT);
if (rec == NULL)
RETURN(-EFAULT);
uc->mu_fsuid = rec->cr_fsuid;
uc->mu_fsgid = rec->cr_fsgid;
uc->mu_cap = rec->cr_cap;
uc->mu_suppgids[0] = rec->cr_suppgid1;
uc->mu_suppgids[1] = -1;
rr->rr_fid1 = &rec->cr_fid1;
rr->rr_fid2 = &rec->cr_fid2;
attr->la_mode = rec->cr_mode;
attr->la_rdev = rec->cr_rdev;
attr->la_uid = rec->cr_fsuid;
attr->la_gid = rec->cr_fsgid;
attr->la_ctime = rec->cr_time;
attr->la_mtime = rec->cr_time;
attr->la_atime = rec->cr_time;
attr->la_valid = LA_MODE | LA_RDEV | LA_UID | LA_GID |
LA_CTIME | LA_MTIME | LA_ATIME;
memset(&sp->u, 0, sizeof(sp->u));
sp->sp_cr_flags = get_mrc_cr_flags(rec);
sp->sp_ck_split = !!(rec->cr_bias & MDS_CHECK_SPLIT);
info->mti_cross_ref = !!(rec->cr_bias & MDS_CROSS_REF);
if (req_capsule_get_size(pill, &RMF_CAPA1, RCL_CLIENT))
mdt_set_capainfo(info, 0, rr->rr_fid1,
req_capsule_client_get(pill, &RMF_CAPA1));
mdt_set_capainfo(info, 1, rr->rr_fid2, BYPASS_CAPA);
if (!info->mti_cross_ref) {
rr->rr_name = req_capsule_client_get(pill, &RMF_NAME);
rr->rr_namelen = req_capsule_get_size(pill, &RMF_NAME,
RCL_CLIENT) - 1;
LASSERT(rr->rr_name && rr->rr_namelen > 0);
} else {
rr->rr_name = NULL;
rr->rr_namelen = 0;
}
#ifdef CONFIG_FS_POSIX_ACL
if (sp->sp_cr_flags & MDS_CREATE_RMT_ACL) {
if (S_ISDIR(attr->la_mode))
sp->u.sp_pfid = rr->rr_fid1;
req_capsule_extend(pill, &RQF_MDS_REINT_CREATE_RMT_ACL);
LASSERT(req_capsule_field_present(pill, &RMF_EADATA,
RCL_CLIENT));
sp->u.sp_ea.eadata = req_capsule_client_get(pill, &RMF_EADATA);
sp->u.sp_ea.eadatalen = req_capsule_get_size(pill, &RMF_EADATA,
RCL_CLIENT);
sp->u.sp_ea.fid = rr->rr_fid1;
RETURN(0);
}
#endif
if (S_ISDIR(attr->la_mode)) {
/* pass parent fid for cross-ref cases */
sp->u.sp_pfid = rr->rr_fid1;
if (sp->sp_cr_flags & MDS_CREATE_SLAVE_OBJ) {
/* create salve object req, need
* unpack split ea here
*/
req_capsule_extend(pill, &RQF_MDS_REINT_CREATE_SLAVE);
LASSERT(req_capsule_field_present(pill, &RMF_EADATA,
RCL_CLIENT));
sp->u.sp_ea.eadata = req_capsule_client_get(pill,
&RMF_EADATA);
sp->u.sp_ea.eadatalen = req_capsule_get_size(pill,
&RMF_EADATA,
RCL_CLIENT);
sp->u.sp_ea.fid = rr->rr_fid1;
RETURN(0);
}
req_capsule_extend(pill, &RQF_MDS_REINT_CREATE_RMT_ACL);
} else if (S_ISLNK(attr->la_mode)) {
const char *tgt = NULL;
req_capsule_extend(pill, &RQF_MDS_REINT_CREATE_SYM);
if (req_capsule_get_size(pill, &RMF_SYMTGT, RCL_CLIENT)) {
tgt = req_capsule_client_get(pill, &RMF_SYMTGT);
sp->u.sp_symname = tgt;
}
if (tgt == NULL)
RETURN(-EFAULT);
} else {
req_capsule_extend(pill, &RQF_MDS_REINT_CREATE_RMT_ACL);
}
rc = mdt_dlmreq_unpack(info);
RETURN(rc);
}
static int mdt_open_unpack(struct mdt_thread_info *info)
{
struct lu_ucred *uc = mdt_ucred(info);
struct mdt_rec_create *rec;
struct lu_attr *attr = &info->mti_attr.ma_attr;
struct req_capsule *pill = info->mti_pill;
struct mdt_reint_record *rr = &info->mti_rr;
struct ptlrpc_request *req = mdt_info_req(info);
struct md_op_spec *sp = &info->mti_spec;
ENTRY;
CLASSERT(sizeof(struct mdt_rec_create) == sizeof(struct mdt_rec_reint));
rec = req_capsule_client_get(pill, &RMF_REC_REINT);
if (rec == NULL)
RETURN(-EFAULT);
/* This prior initialization is needed for old_init_ucred_reint() */
uc->uc_fsuid = rec->cr_fsuid;
uc->uc_fsgid = rec->cr_fsgid;
uc->uc_cap = rec->cr_cap;
uc->uc_suppgids[0] = rec->cr_suppgid1;
uc->uc_suppgids[1] = rec->cr_suppgid2;
uc->uc_umask = rec->cr_umask;
rr->rr_fid1 = &rec->cr_fid1;
rr->rr_fid2 = &rec->cr_fid2;
rr->rr_handle = &rec->cr_old_handle;
attr->la_mode = rec->cr_mode;
attr->la_rdev = rec->cr_rdev;
attr->la_uid = rec->cr_fsuid;
attr->la_gid = rec->cr_fsgid;
attr->la_ctime = rec->cr_time;
attr->la_mtime = rec->cr_time;
attr->la_atime = rec->cr_time;
attr->la_valid = LA_MODE | LA_RDEV | LA_UID | LA_GID |
LA_CTIME | LA_MTIME | LA_ATIME;
memset(&info->mti_spec.u, 0, sizeof(info->mti_spec.u));
info->mti_spec.sp_cr_flags = get_mrc_cr_flags(rec);
/* Do not trigger ASSERTION if client miss to set such flags. */
if (unlikely(info->mti_spec.sp_cr_flags == 0))
RETURN(-EPROTO);
info->mti_replayepoch = rec->cr_ioepoch;
info->mti_cross_ref = !!(rec->cr_bias & MDS_CROSS_REF);
if (req_capsule_get_size(pill, &RMF_CAPA1, RCL_CLIENT))
mdt_set_capainfo(info, 0, rr->rr_fid1,
req_capsule_client_get(pill, &RMF_CAPA1));
if (req_is_replay(req) &&
req_capsule_get_size(pill, &RMF_CAPA2, RCL_CLIENT)) {
#if 0
mdt_set_capainfo(info, 1, rr->rr_fid2,
req_capsule_client_get(pill, &RMF_CAPA2));
#else
/*
* FIXME: capa in replay open request might have expired,
* bypass capa check. Security hole?
*/
mdt_set_capainfo(info, 0, rr->rr_fid1, BYPASS_CAPA);
mdt_set_capainfo(info, 1, rr->rr_fid2, BYPASS_CAPA);
#endif
}
mdt_name_unpack(pill, &RMF_NAME, &rr->rr_name, MNF_FIX_ANON);
if (req_capsule_field_present(pill, &RMF_EADATA, RCL_CLIENT)) {
rr->rr_eadatalen = req_capsule_get_size(pill, &RMF_EADATA,
RCL_CLIENT);
if (rr->rr_eadatalen > 0) {
rr->rr_eadata = req_capsule_client_get(pill,
&RMF_EADATA);
sp->u.sp_ea.eadatalen = rr->rr_eadatalen;
sp->u.sp_ea.eadata = rr->rr_eadata;
sp->no_create = !!req_is_replay(req);
mdt_fix_lov_magic(info);
}
/*
* Client default md_size may be 0 right after client start,
* until all osc are connected, set here just some reasonable
* value to prevent misbehavior.
*/
if (rr->rr_eadatalen == 0 &&
!(info->mti_spec.sp_cr_flags & MDS_OPEN_DELAY_CREATE))
rr->rr_eadatalen = MIN_MD_SIZE;
}
RETURN(0);
}
static int mdt_open_unpack(struct mdt_thread_info *info)
{
struct md_ucred *uc = mdt_ucred(info);
struct mdt_rec_create *rec;
struct lu_attr *attr = &info->mti_attr.ma_attr;
struct req_capsule *pill = info->mti_pill;
struct mdt_reint_record *rr = &info->mti_rr;
struct ptlrpc_request *req = mdt_info_req(info);
struct md_op_spec *sp = &info->mti_spec;
ENTRY;
CLASSERT(sizeof(struct mdt_rec_create) == sizeof(struct mdt_rec_reint));
rec = req_capsule_client_get(pill, &RMF_REC_REINT);
if (rec == NULL)
RETURN(-EFAULT);
uc->mu_fsuid = rec->cr_fsuid;
uc->mu_fsgid = rec->cr_fsgid;
uc->mu_cap = rec->cr_cap;
uc->mu_suppgids[0] = rec->cr_suppgid1;
uc->mu_suppgids[1] = rec->cr_suppgid2;
rr->rr_fid1 = &rec->cr_fid1;
rr->rr_fid2 = &rec->cr_fid2;
rr->rr_handle = &rec->cr_old_handle;
attr->la_mode = rec->cr_mode;
attr->la_rdev = rec->cr_rdev;
attr->la_uid = rec->cr_fsuid;
attr->la_gid = rec->cr_fsgid;
attr->la_ctime = rec->cr_time;
attr->la_mtime = rec->cr_time;
attr->la_atime = rec->cr_time;
attr->la_valid = LA_MODE | LA_RDEV | LA_UID | LA_GID |
LA_CTIME | LA_MTIME | LA_ATIME;
memset(&info->mti_spec.u, 0, sizeof(info->mti_spec.u));
info->mti_spec.sp_cr_flags = get_mrc_cr_flags(rec);
/* Do not trigger ASSERTION if client miss to set such flags. */
if (unlikely(info->mti_spec.sp_cr_flags == 0))
RETURN(-EPROTO);
info->mti_replayepoch = rec->cr_ioepoch;
info->mti_spec.sp_ck_split = !!(rec->cr_bias & MDS_CHECK_SPLIT);
info->mti_cross_ref = !!(rec->cr_bias & MDS_CROSS_REF);
if (req_capsule_get_size(pill, &RMF_CAPA1, RCL_CLIENT))
mdt_set_capainfo(info, 0, rr->rr_fid1,
req_capsule_client_get(pill, &RMF_CAPA1));
if (req_is_replay(req) &&
req_capsule_get_size(pill, &RMF_CAPA2, RCL_CLIENT)) {
#if 0
mdt_set_capainfo(info, 1, rr->rr_fid2,
req_capsule_client_get(pill, &RMF_CAPA2));
#else
/*
* FIXME: capa in replay open request might have expired,
* bypass capa check. Security hole?
*/
mdt_set_capainfo(info, 0, rr->rr_fid1, BYPASS_CAPA);
mdt_set_capainfo(info, 1, rr->rr_fid2, BYPASS_CAPA);
#endif
}
rr->rr_name = req_capsule_client_get(pill, &RMF_NAME);
if (rr->rr_name == NULL)
RETURN(-EFAULT);
rr->rr_namelen = req_capsule_get_size(pill, &RMF_NAME, RCL_CLIENT) - 1;
sp->u.sp_ea.eadatalen = req_capsule_get_size(pill, &RMF_EADATA,
RCL_CLIENT);
if (sp->u.sp_ea.eadatalen) {
sp->u.sp_ea.eadata = req_capsule_client_get(pill, &RMF_EADATA);
sp->no_create = !!req_is_replay(req);
}
RETURN(0);
}
static int mdt_create_unpack(struct mdt_thread_info *info)
{
struct lu_ucred *uc = mdt_ucred(info);
struct mdt_rec_create *rec;
struct lu_attr *attr = &info->mti_attr.ma_attr;
struct mdt_reint_record *rr = &info->mti_rr;
struct req_capsule *pill = info->mti_pill;
struct md_op_spec *sp = &info->mti_spec;
int rc;
ENTRY;
CLASSERT(sizeof(struct mdt_rec_create) == sizeof(struct mdt_rec_reint));
rec = req_capsule_client_get(pill, &RMF_REC_REINT);
if (rec == NULL)
RETURN(-EFAULT);
/* This prior initialization is needed for old_init_ucred_reint() */
uc->uc_fsuid = rec->cr_fsuid;
uc->uc_fsgid = rec->cr_fsgid;
uc->uc_cap = rec->cr_cap;
uc->uc_suppgids[0] = rec->cr_suppgid1;
uc->uc_suppgids[1] = -1;
uc->uc_umask = rec->cr_umask;
rr->rr_fid1 = &rec->cr_fid1;
rr->rr_fid2 = &rec->cr_fid2;
attr->la_mode = rec->cr_mode;
attr->la_rdev = rec->cr_rdev;
attr->la_uid = rec->cr_fsuid;
attr->la_gid = rec->cr_fsgid;
attr->la_ctime = rec->cr_time;
attr->la_mtime = rec->cr_time;
attr->la_atime = rec->cr_time;
attr->la_valid = LA_MODE | LA_RDEV | LA_UID | LA_GID | LA_TYPE |
LA_CTIME | LA_MTIME | LA_ATIME;
memset(&sp->u, 0, sizeof(sp->u));
sp->sp_cr_flags = get_mrc_cr_flags(rec);
if (req_capsule_get_size(pill, &RMF_CAPA1, RCL_CLIENT))
mdt_set_capainfo(info, 0, rr->rr_fid1,
req_capsule_client_get(pill, &RMF_CAPA1));
mdt_set_capainfo(info, 1, rr->rr_fid2, BYPASS_CAPA);
rc = mdt_name_unpack(pill, &RMF_NAME, &rr->rr_name, 0);
if (rc < 0)
RETURN(rc);
if (S_ISLNK(attr->la_mode)) {
const char *tgt = NULL;
req_capsule_extend(pill, &RQF_MDS_REINT_CREATE_SYM);
if (req_capsule_get_size(pill, &RMF_SYMTGT, RCL_CLIENT)) {
tgt = req_capsule_client_get(pill, &RMF_SYMTGT);
sp->u.sp_symname = tgt;
}
if (tgt == NULL)
RETURN(-EFAULT);
} else {
req_capsule_extend(pill, &RQF_MDS_REINT_CREATE_RMT_ACL);
if (S_ISDIR(attr->la_mode) &&
req_capsule_get_size(pill, &RMF_EADATA, RCL_CLIENT) > 0) {
sp->u.sp_ea.eadata =
req_capsule_client_get(pill, &RMF_EADATA);
sp->u.sp_ea.eadatalen =
req_capsule_get_size(pill, &RMF_EADATA,
RCL_CLIENT);
sp->sp_cr_flags |= MDS_OPEN_HAS_EA;
}
}
rc = mdt_dlmreq_unpack(info);
RETURN(rc);
}
