-/* -*- mode: c; c-basic-offset: 8; indent-tabs-mode: nil; -*-
- * vim:expandtab:shiftwidth=8:tabstop=8:
- *
+/*
* GPL HEADER START
*
* DO NOT ALTER OR REMOVE COPYRIGHT NOTICES OR THIS FILE HEADER.
* GPL HEADER END
*/
/*
- * Copyright 2008 Sun Microsystems, Inc. All rights reserved
+ * Copyright (c) 2008, 2010, Oracle and/or its affiliates. All rights reserved.
* Use is subject to license terms.
+ *
+ * Copyright (c) 2012, Intel Corporation.
*/
/*
* This file is part of Lustre, http://www.lustre.org/
* Author: Fan Yong <fanyong@clusterfs.com>
*/
-#ifndef EXPORT_SYMTAB
-# define EXPORT_SYMTAB
-#endif
-
#define DEBUG_SUBSYSTEM S_SEC
+#include <libcfs/lucache.h>
+
#include <lustre_idmap.h>
+#include <md_object.h>
#include <obd_support.h>
#define lustre_get_group_info(group_info) do { \
- atomic_inc(&(group_info)->usage); \
+ atomic_inc(&(group_info)->usage); \
} while (0)
#define lustre_put_group_info(group_info) do { \
- if (atomic_dec_and_test(&(group_info)->usage)) \
- groups_free(group_info); \
+ if (atomic_dec_and_test(&(group_info)->usage)) \
+ groups_free(group_info); \
} while (0)
/*
* groups_search() is copied from linux kernel!
* A simple bsearch.
*/
-static int lustre_groups_search(struct group_info *group_info, gid_t grp)
+static int lustre_groups_search(struct group_info *group_info,
+ gid_t grp)
{
- int left, right;
-
- if (!group_info)
- return 0;
-
- left = 0;
- right = group_info->ngroups;
- while (left < right) {
- int mid = (left + right) / 2;
- int cmp = grp - CFS_GROUP_AT(group_info, mid);
-
- if (cmp > 0)
- left = mid + 1;
- else if (cmp < 0)
- right = mid;
- else
- return 1;
- }
- return 0;
+ int left, right;
+
+ if (!group_info)
+ return 0;
+
+ left = 0;
+ right = group_info->ngroups;
+ while (left < right) {
+ int mid = (left + right) / 2;
+ int cmp = grp -
+ from_kgid(&init_user_ns, CFS_GROUP_AT(group_info, mid));
+
+ if (cmp > 0)
+ left = mid + 1;
+ else if (cmp < 0)
+ right = mid;
+ else
+ return 1;
+ }
+ return 0;
}
void lustre_groups_from_list(struct group_info *ginfo, gid_t *glist)
{
- int i;
- int count = ginfo->ngroups;
-
- /* fill group_info from gid array */
- for (i = 0; i < ginfo->nblocks && count > 0; i++) {
- int cp_count = min(CFS_NGROUPS_PER_BLOCK, count);
- int off = i * CFS_NGROUPS_PER_BLOCK;
- int len = cp_count * sizeof(*glist);
-
- memcpy(ginfo->blocks[i], glist + off, len);
- count -= cp_count;
- }
+ int i;
+ int count = ginfo->ngroups;
+
+ /* fill group_info from gid array */
+ for (i = 0; i < ginfo->nblocks && count > 0; i++) {
+ int cp_count = min(CFS_NGROUPS_PER_BLOCK, count);
+ int off = i * CFS_NGROUPS_PER_BLOCK;
+ int len = cp_count * sizeof(*glist);
+
+ memcpy(ginfo->blocks[i], glist + off, len);
+ count -= cp_count;
+ }
}
EXPORT_SYMBOL(lustre_groups_from_list);
; /* nothing */
stride /= 3;
- while (stride) {
- max = gidsetsize - stride;
- for (base = 0; base < max; base++) {
- int left = base;
- int right = left + stride;
- gid_t tmp = CFS_GROUP_AT(group_info, right);
-
- while (left >= 0 &&
- CFS_GROUP_AT(group_info, left) > tmp) {
- CFS_GROUP_AT(group_info, right) =
- CFS_GROUP_AT(group_info, left);
- right = left;
- left -= stride;
- }
- CFS_GROUP_AT(group_info, right) = tmp;
- }
- stride /= 3;
- }
+ while (stride) {
+ max = gidsetsize - stride;
+ for (base = 0; base < max; base++) {
+ int left = base;
+ int right = left + stride;
+ gid_t tmp = from_kgid(&init_user_ns,
+ CFS_GROUP_AT(group_info, right));
+
+ while (left >= 0 &&
+ tmp < from_kgid(&init_user_ns,
+ CFS_GROUP_AT(group_info, left))) {
+ CFS_GROUP_AT(group_info, right) =
+ CFS_GROUP_AT(group_info, left);
+ right = left;
+ left -= stride;
+ }
+ CFS_GROUP_AT(group_info, right) =
+ make_kgid(&init_user_ns, tmp);
+ }
+ stride /= 3;
+ }
}
EXPORT_SYMBOL(lustre_groups_sort);
-int lustre_in_group_p(struct md_ucred *mu, gid_t grp)
+int lustre_in_group_p(struct lu_ucred *mu, gid_t grp)
{
- int rc = 1;
-
- if (grp != mu->mu_fsgid) {
- struct group_info *group_info = NULL;
-
- if (mu->mu_ginfo || !mu->mu_identity ||
- mu->mu_valid == UCRED_OLD)
- if (grp == mu->mu_suppgids[0] ||
- grp == mu->mu_suppgids[1])
- return 1;
-
- if (mu->mu_ginfo)
- group_info = mu->mu_ginfo;
- else if (mu->mu_identity)
- group_info = mu->mu_identity->mi_ginfo;
-
- if (!group_info)
- return 0;
-
- lustre_get_group_info(group_info);
- rc = lustre_groups_search(group_info, grp);
- lustre_put_group_info(group_info);
- }
- return rc;
+ int rc = 1;
+
+ if (grp != mu->uc_fsgid) {
+ struct group_info *group_info = NULL;
+
+ if (mu->uc_ginfo || !mu->uc_identity ||
+ mu->uc_valid == UCRED_OLD)
+ if (grp == mu->uc_suppgids[0] ||
+ grp == mu->uc_suppgids[1])
+ return 1;
+
+ if (mu->uc_ginfo)
+ group_info = mu->uc_ginfo;
+ else if (mu->uc_identity)
+ group_info = mu->uc_identity->mi_ginfo;
+
+ if (!group_info)
+ return 0;
+
+ lustre_get_group_info(group_info);
+ rc = lustre_groups_search(group_info, grp);
+ lustre_put_group_info(group_info);
+ }
+ return rc;
}
EXPORT_SYMBOL(lustre_in_group_p);
struct lustre_idmap_entry {
- struct list_head lie_rmt_uid_hash; /* hashed as lie_rmt_uid; */
- struct list_head lie_lcl_uid_hash; /* hashed as lie_lcl_uid; */
- struct list_head lie_rmt_gid_hash; /* hashed as lie_rmt_gid; */
- struct list_head lie_lcl_gid_hash; /* hashed as lie_lcl_gid; */
+ struct list_head lie_rmt_uid_hash; /* hashed as lie_rmt_uid; */
+ struct list_head lie_lcl_uid_hash; /* hashed as lie_lcl_uid; */
+ struct list_head lie_rmt_gid_hash; /* hashed as lie_rmt_gid; */
+ struct list_head lie_lcl_gid_hash; /* hashed as lie_lcl_gid; */
uid_t lie_rmt_uid; /* remote uid */
uid_t lie_lcl_uid; /* local uid */
gid_t lie_rmt_gid; /* remote gid */
if (e == NULL)
return NULL;
- CFS_INIT_LIST_HEAD(&e->lie_rmt_uid_hash);
- CFS_INIT_LIST_HEAD(&e->lie_lcl_uid_hash);
- CFS_INIT_LIST_HEAD(&e->lie_rmt_gid_hash);
- CFS_INIT_LIST_HEAD(&e->lie_lcl_gid_hash);
+ INIT_LIST_HEAD(&e->lie_rmt_uid_hash);
+ INIT_LIST_HEAD(&e->lie_lcl_uid_hash);
+ INIT_LIST_HEAD(&e->lie_rmt_gid_hash);
+ INIT_LIST_HEAD(&e->lie_lcl_gid_hash);
e->lie_rmt_uid = rmt_uid;
e->lie_lcl_uid = lcl_uid;
e->lie_rmt_gid = rmt_gid;
static void idmap_entry_free(struct lustre_idmap_entry *e)
{
- if (!list_empty(&e->lie_rmt_uid_hash))
- list_del(&e->lie_rmt_uid_hash);
- if (!list_empty(&e->lie_lcl_uid_hash))
- list_del(&e->lie_lcl_uid_hash);
- if (!list_empty(&e->lie_rmt_gid_hash))
- list_del(&e->lie_rmt_gid_hash);
- if (!list_empty(&e->lie_lcl_gid_hash))
- list_del(&e->lie_lcl_gid_hash);
- OBD_FREE_PTR(e);
+ list_del(&e->lie_rmt_uid_hash);
+ list_del(&e->lie_lcl_uid_hash);
+ list_del(&e->lie_rmt_gid_hash);
+ list_del(&e->lie_lcl_gid_hash);
+ OBD_FREE_PTR(e);
}
/*
uid_t rmt_uid, uid_t lcl_uid,
gid_t rmt_gid, gid_t lcl_gid)
{
- struct list_head *head;
+ struct list_head *head;
struct lustre_idmap_entry *e;
head = &t->lit_idmaps[RMT_UIDMAP_IDX][lustre_idmap_hashfunc(rmt_uid)];
- list_for_each_entry(e, head, lie_rmt_uid_hash)
+ list_for_each_entry(e, head, lie_rmt_uid_hash)
if (e->lie_rmt_uid == rmt_uid) {
if (e->lie_lcl_uid == lcl_uid) {
if (e->lie_rmt_gid == rmt_gid &&
}
head = &t->lit_idmaps[RMT_GIDMAP_IDX][lustre_idmap_hashfunc(rmt_gid)];
- list_for_each_entry(e, head, lie_rmt_gid_hash)
+ list_for_each_entry(e, head, lie_rmt_gid_hash)
if (e->lie_rmt_gid == rmt_gid) {
if (e->lie_lcl_gid == lcl_gid) {
if (unlikely(e->lie_rmt_uid == rmt_uid &&
return NULL;
}
-static __u32 idmap_lookup_uid(struct list_head *hash, int reverse, __u32 uid)
+static __u32 idmap_lookup_uid(struct list_head *hash, int reverse,
+ __u32 uid)
{
- struct list_head *head = &hash[lustre_idmap_hashfunc(uid)];
- struct lustre_idmap_entry *e;
-
- if (!reverse) {
- list_for_each_entry(e, head, lie_rmt_uid_hash)
- if (e->lie_rmt_uid == uid)
- return e->lie_lcl_uid;
- } else {
- list_for_each_entry(e, head, lie_lcl_uid_hash)
- if (e->lie_lcl_uid == uid)
- return e->lie_rmt_uid;
- }
-
- return CFS_IDMAP_NOTFOUND;
+ struct list_head *head = &hash[lustre_idmap_hashfunc(uid)];
+ struct lustre_idmap_entry *e;
+
+ if (!reverse) {
+ list_for_each_entry(e, head, lie_rmt_uid_hash)
+ if (e->lie_rmt_uid == uid)
+ return e->lie_lcl_uid;
+ } else {
+ list_for_each_entry(e, head, lie_lcl_uid_hash)
+ if (e->lie_lcl_uid == uid)
+ return e->lie_rmt_uid;
+ }
+
+ return CFS_IDMAP_NOTFOUND;
}
static __u32 idmap_lookup_gid(struct list_head *hash, int reverse, __u32 gid)
{
- struct list_head *head = &hash[lustre_idmap_hashfunc(gid)];
+ struct list_head *head = &hash[lustre_idmap_hashfunc(gid)];
struct lustre_idmap_entry *e;
if (!reverse) {
- list_for_each_entry(e, head, lie_rmt_gid_hash)
+ list_for_each_entry(e, head, lie_rmt_gid_hash)
if (e->lie_rmt_gid == gid)
return e->lie_lcl_gid;
} else {
- list_for_each_entry(e, head, lie_lcl_gid_hash)
+ list_for_each_entry(e, head, lie_lcl_gid_hash)
if (e->lie_lcl_gid == gid)
return e->lie_rmt_gid;
}
}
int lustre_idmap_add(struct lustre_idmap_table *t,
- uid_t ruid, uid_t luid,
- gid_t rgid, gid_t lgid)
+ uid_t ruid, uid_t luid,
+ gid_t rgid, gid_t lgid)
{
- struct lustre_idmap_entry *e0, *e1;
-
- LASSERT(t);
-
- spin_lock(&t->lit_lock);
- e0 = idmap_search_entry(t, ruid, luid, rgid, lgid);
- spin_unlock(&t->lit_lock);
- if (!e0) {
- e0 = idmap_entry_alloc(ruid, luid, rgid, lgid);
- if (!e0)
- return -ENOMEM;
-
- spin_lock(&t->lit_lock);
- e1 = idmap_search_entry(t, ruid, luid, rgid, lgid);
- if (e1 == NULL) {
- list_add_tail(&e0->lie_rmt_uid_hash,
- &t->lit_idmaps[RMT_UIDMAP_IDX]
- [lustre_idmap_hashfunc(ruid)]);
- list_add_tail(&e0->lie_lcl_uid_hash,
- &t->lit_idmaps[LCL_UIDMAP_IDX]
- [lustre_idmap_hashfunc(luid)]);
- list_add_tail(&e0->lie_rmt_gid_hash,
- &t->lit_idmaps[RMT_GIDMAP_IDX]
- [lustre_idmap_hashfunc(rgid)]);
- list_add_tail(&e0->lie_lcl_gid_hash,
- &t->lit_idmaps[LCL_GIDMAP_IDX]
- [lustre_idmap_hashfunc(lgid)]);
- }
- spin_unlock(&t->lit_lock);
- if (e1 != NULL) {
- idmap_entry_free(e0);
- if (IS_ERR(e1))
- return PTR_ERR(e1);
- }
- } else if (IS_ERR(e0)) {
- return PTR_ERR(e0);
- }
-
- return 0;
+ struct lustre_idmap_entry *e0, *e1;
+
+ LASSERT(t);
+
+ spin_lock(&t->lit_lock);
+ e0 = idmap_search_entry(t, ruid, luid, rgid, lgid);
+ spin_unlock(&t->lit_lock);
+ if (!e0) {
+ e0 = idmap_entry_alloc(ruid, luid, rgid, lgid);
+ if (!e0)
+ return -ENOMEM;
+
+ spin_lock(&t->lit_lock);
+ e1 = idmap_search_entry(t, ruid, luid, rgid, lgid);
+ if (e1 == NULL) {
+ list_add_tail(&e0->lie_rmt_uid_hash,
+ &t->lit_idmaps[RMT_UIDMAP_IDX]
+ [lustre_idmap_hashfunc(ruid)]);
+ list_add_tail(&e0->lie_lcl_uid_hash,
+ &t->lit_idmaps[LCL_UIDMAP_IDX]
+ [lustre_idmap_hashfunc(luid)]);
+ list_add_tail(&e0->lie_rmt_gid_hash,
+ &t->lit_idmaps[RMT_GIDMAP_IDX]
+ [lustre_idmap_hashfunc(rgid)]);
+ list_add_tail(&e0->lie_lcl_gid_hash,
+ &t->lit_idmaps[LCL_GIDMAP_IDX]
+ [lustre_idmap_hashfunc(lgid)]);
+ }
+ spin_unlock(&t->lit_lock);
+ if (e1 != NULL) {
+ idmap_entry_free(e0);
+ if (IS_ERR(e1))
+ return PTR_ERR(e1);
+ }
+ } else if (IS_ERR(e0)) {
+ return PTR_ERR(e0);
+ }
+
+ return 0;
}
EXPORT_SYMBOL(lustre_idmap_add);
uid_t ruid, uid_t luid,
gid_t rgid, gid_t lgid)
{
- struct lustre_idmap_entry *e;
- int rc = 0;
+ struct lustre_idmap_entry *e;
+ int rc = 0;
- LASSERT(t);
+ LASSERT(t);
- spin_lock(&t->lit_lock);
- e = idmap_search_entry(t, ruid, luid, rgid, lgid);
- if (IS_ERR(e))
- rc = PTR_ERR(e);
- else if (e)
- idmap_entry_free(e);
- spin_unlock(&t->lit_lock);
+ spin_lock(&t->lit_lock);
+ e = idmap_search_entry(t, ruid, luid, rgid, lgid);
+ if (IS_ERR(e))
+ rc = PTR_ERR(e);
+ else if (e)
+ idmap_entry_free(e);
+ spin_unlock(&t->lit_lock);
- return rc;
+ return rc;
}
EXPORT_SYMBOL(lustre_idmap_del);
-int lustre_idmap_lookup_uid(struct md_ucred *mu,
- struct lustre_idmap_table *t,
- int reverse, uid_t uid)
+int lustre_idmap_lookup_uid(struct lu_ucred *mu,
+ struct lustre_idmap_table *t,
+ int reverse, uid_t uid)
{
- struct list_head *hash;
-
- if (mu && (mu->mu_valid == UCRED_OLD || mu->mu_valid == UCRED_NEW)) {
- if (!reverse) {
- if (uid == mu->mu_o_uid)
- return mu->mu_uid;
- else if (uid == mu->mu_o_fsuid)
- return mu->mu_fsuid;
- } else {
- if (uid == mu->mu_uid)
- return mu->mu_o_uid;
- else if (uid == mu->mu_fsuid)
- return mu->mu_o_fsuid;
- }
- }
+ struct list_head *hash;
+
+ if (mu && (mu->uc_valid == UCRED_OLD || mu->uc_valid == UCRED_NEW)) {
+ if (!reverse) {
+ if (uid == mu->uc_o_uid)
+ return mu->uc_uid;
+ else if (uid == mu->uc_o_fsuid)
+ return mu->uc_fsuid;
+ } else {
+ if (uid == mu->uc_uid)
+ return mu->uc_o_uid;
+ else if (uid == mu->uc_fsuid)
+ return mu->uc_o_fsuid;
+ }
+ }
if (t == NULL)
return CFS_IDMAP_NOTFOUND;
hash = t->lit_idmaps[reverse ? LCL_UIDMAP_IDX : RMT_UIDMAP_IDX];
- spin_lock(&t->lit_lock);
- uid = idmap_lookup_uid(hash, reverse, uid);
- spin_unlock(&t->lit_lock);
+ spin_lock(&t->lit_lock);
+ uid = idmap_lookup_uid(hash, reverse, uid);
+ spin_unlock(&t->lit_lock);
- return uid;
+ return uid;
}
EXPORT_SYMBOL(lustre_idmap_lookup_uid);
-int lustre_idmap_lookup_gid(struct md_ucred *mu, struct lustre_idmap_table *t,
- int reverse, gid_t gid)
+int lustre_idmap_lookup_gid(struct lu_ucred *mu, struct lustre_idmap_table *t,
+ int reverse, gid_t gid)
{
- struct list_head *hash;
-
- if (mu && (mu->mu_valid == UCRED_OLD || mu->mu_valid == UCRED_NEW)) {
- if (!reverse) {
- if (gid == mu->mu_o_gid)
- return mu->mu_gid;
- else if (gid == mu->mu_o_fsgid)
- return mu->mu_fsgid;
- } else {
- if (gid == mu->mu_gid)
- return mu->mu_o_gid;
- else if (gid == mu->mu_fsgid)
- return mu->mu_o_fsgid;
- }
- }
+ struct list_head *hash;
+
+ if (mu && (mu->uc_valid == UCRED_OLD || mu->uc_valid == UCRED_NEW)) {
+ if (!reverse) {
+ if (gid == mu->uc_o_gid)
+ return mu->uc_gid;
+ else if (gid == mu->uc_o_fsgid)
+ return mu->uc_fsgid;
+ } else {
+ if (gid == mu->uc_gid)
+ return mu->uc_o_gid;
+ else if (gid == mu->uc_fsgid)
+ return mu->uc_o_fsgid;
+ }
+ }
if (t == NULL)
return CFS_IDMAP_NOTFOUND;
hash = t->lit_idmaps[reverse ? LCL_GIDMAP_IDX : RMT_GIDMAP_IDX];
- spin_lock(&t->lit_lock);
- gid = idmap_lookup_gid(hash, reverse, gid);
- spin_unlock(&t->lit_lock);
+ spin_lock(&t->lit_lock);
+ gid = idmap_lookup_gid(hash, reverse, gid);
+ spin_unlock(&t->lit_lock);
- return gid;
+ return gid;
}
EXPORT_SYMBOL(lustre_idmap_lookup_gid);
if(unlikely(t == NULL))
return (ERR_PTR(-ENOMEM));
- spin_lock_init(&t->lit_lock);
- for (i = 0; i < ARRAY_SIZE(t->lit_idmaps); i++)
- for (j = 0; j < ARRAY_SIZE(t->lit_idmaps[i]); j++)
- INIT_LIST_HEAD(&t->lit_idmaps[i][j]);
+ spin_lock_init(&t->lit_lock);
+ for (i = 0; i < ARRAY_SIZE(t->lit_idmaps); i++)
+ for (j = 0; j < ARRAY_SIZE(t->lit_idmaps[i]); j++)
+ INIT_LIST_HEAD(&t->lit_idmaps[i][j]);
- return t;
+ return t;
}
EXPORT_SYMBOL(lustre_idmap_init);
void lustre_idmap_fini(struct lustre_idmap_table *t)
{
- struct list_head *list;
+ struct list_head *list;
struct lustre_idmap_entry *e;
int i;
LASSERT(t);
list = t->lit_idmaps[RMT_UIDMAP_IDX];
- spin_lock(&t->lit_lock);
- for (i = 0; i < CFS_IDMAP_HASHSIZE; i++)
- while (!list_empty(&list[i])) {
- e = list_entry(list[i].next, struct lustre_idmap_entry,
- lie_rmt_uid_hash);
- idmap_entry_free(e);
- }
- spin_unlock(&t->lit_lock);
-
- OBD_FREE_PTR(t);
+ spin_lock(&t->lit_lock);
+ for (i = 0; i < CFS_IDMAP_HASHSIZE; i++)
+ while (!list_empty(&list[i])) {
+ e = list_entry(list[i].next,
+ struct lustre_idmap_entry,
+ lie_rmt_uid_hash);
+ idmap_entry_free(e);
+ }
+ spin_unlock(&t->lit_lock);
+
+ OBD_FREE_PTR(t);
}
EXPORT_SYMBOL(lustre_idmap_fini);
git://git.whamcloud.com / fs / lustre-release.git / blobdiff