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authorDavid Howells <dhowells@redhat.com>2008-11-14 02:39:16 +0300
committerJames Morris <jmorris@namei.org>2008-11-14 02:39:16 +0300
commitb6dff3ec5e116e3af6f537d4caedcad6b9e5082a (patch)
tree9e76f972eb7ce9b84e0146c8e4126a3f86acb428 /fs/nfsd
parent15a2460ed0af7538ca8e6c610fe607a2cd9da142 (diff)
downloadlinux-b6dff3ec5e116e3af6f537d4caedcad6b9e5082a.tar.xz
CRED: Separate task security context from task_struct
Separate the task security context from task_struct. At this point, the security data is temporarily embedded in the task_struct with two pointers pointing to it. Note that the Alpha arch is altered as it refers to (E)UID and (E)GID in entry.S via asm-offsets. With comment fixes Signed-off-by: Marc Dionne <marc.c.dionne@gmail.com> Signed-off-by: David Howells <dhowells@redhat.com> Acked-by: James Morris <jmorris@namei.org> Acked-by: Serge Hallyn <serue@us.ibm.com> Signed-off-by: James Morris <jmorris@namei.org>
Diffstat (limited to 'fs/nfsd')
-rw-r--r--fs/nfsd/auth.c22
-rw-r--r--fs/nfsd/nfs4recover.c12
-rw-r--r--fs/nfsd/nfsfh.c6
3 files changed, 21 insertions, 19 deletions
diff --git a/fs/nfsd/auth.c b/fs/nfsd/auth.c
index 294992e9bf69..808fc03a6fbd 100644
--- a/fs/nfsd/auth.c
+++ b/fs/nfsd/auth.c
@@ -27,6 +27,7 @@ int nfsexp_flags(struct svc_rqst *rqstp, struct svc_export *exp)
int nfsd_setuser(struct svc_rqst *rqstp, struct svc_export *exp)
{
+ struct cred *act_as = current->cred ;
struct svc_cred cred = rqstp->rq_cred;
int i;
int flags = nfsexp_flags(rqstp, exp);
@@ -55,25 +56,26 @@ int nfsd_setuser(struct svc_rqst *rqstp, struct svc_export *exp)
get_group_info(cred.cr_group_info);
if (cred.cr_uid != (uid_t) -1)
- current->fsuid = cred.cr_uid;
+ act_as->fsuid = cred.cr_uid;
else
- current->fsuid = exp->ex_anon_uid;
+ act_as->fsuid = exp->ex_anon_uid;
if (cred.cr_gid != (gid_t) -1)
- current->fsgid = cred.cr_gid;
+ act_as->fsgid = cred.cr_gid;
else
- current->fsgid = exp->ex_anon_gid;
+ act_as->fsgid = exp->ex_anon_gid;
if (!cred.cr_group_info)
return -ENOMEM;
- ret = set_current_groups(cred.cr_group_info);
+ ret = set_groups(act_as, cred.cr_group_info);
put_group_info(cred.cr_group_info);
if ((cred.cr_uid)) {
- current->cap_effective =
- cap_drop_nfsd_set(current->cap_effective);
+ act_as->cap_effective =
+ cap_drop_nfsd_set(act_as->cap_effective);
} else {
- current->cap_effective =
- cap_raise_nfsd_set(current->cap_effective,
- current->cap_permitted);
+ act_as->cap_effective =
+ cap_raise_nfsd_set(act_as->cap_effective,
+ act_as->cap_permitted);
}
return ret;
}
+
diff --git a/fs/nfsd/nfs4recover.c b/fs/nfsd/nfs4recover.c
index bb93946ace22..a5e14e8695ea 100644
--- a/fs/nfsd/nfs4recover.c
+++ b/fs/nfsd/nfs4recover.c
@@ -57,17 +57,17 @@ static int rec_dir_init = 0;
static void
nfs4_save_user(uid_t *saveuid, gid_t *savegid)
{
- *saveuid = current->fsuid;
- *savegid = current->fsgid;
- current->fsuid = 0;
- current->fsgid = 0;
+ *saveuid = current->cred->fsuid;
+ *savegid = current->cred->fsgid;
+ current->cred->fsuid = 0;
+ current->cred->fsgid = 0;
}
static void
nfs4_reset_user(uid_t saveuid, gid_t savegid)
{
- current->fsuid = saveuid;
- current->fsgid = savegid;
+ current->cred->fsuid = saveuid;
+ current->cred->fsgid = savegid;
}
static void
diff --git a/fs/nfsd/nfsfh.c b/fs/nfsd/nfsfh.c
index cd25d91895a1..e67cfaea0865 100644
--- a/fs/nfsd/nfsfh.c
+++ b/fs/nfsd/nfsfh.c
@@ -186,9 +186,9 @@ static __be32 nfsd_set_fh_dentry(struct svc_rqst *rqstp, struct svc_fh *fhp)
* access control settings being in effect, we cannot
* fix that case easily.
*/
- current->cap_effective =
- cap_raise_nfsd_set(current->cap_effective,
- current->cap_permitted);
+ current->cred->cap_effective =
+ cap_raise_nfsd_set(current->cred->cap_effective,
+ current->cred->cap_permitted);
} else {
error = nfsd_setuser_and_check_port(rqstp, exp);
if (error)