From: NeilBrown <neilb@suse.com>
To: "J. Bruce Fields" <bfields@fieldses.org>,
Chuck Lever <chuck.lever@oracle.com>,
Jeff Layton <jlayton@kernel.org>,
Trond Myklebust <trond.myklebust@hammerspace.com>,
Anna Schumaker <anna.schumaker@netapp.com>
Cc: Linux NFS Mailing List <linux-nfs@vger.kernel.org>,
linux-kernel@vger.kernel.org
Subject: [PATCH 07/23] SUNRPC: remove uid and gid from struct auth_cred
Date: Wed, 07 Nov 2018 15:12:31 +1100 [thread overview]
Message-ID: <154156395096.24086.4682309724416913290.stgit@noble> (raw)
In-Reply-To: <154156285766.24086.14262073575778354276.stgit@noble>
Use cred->fsuid and cred->fsgid instead.
Signed-off-by: NeilBrown <neilb@suse.com>
---
fs/nfs/flexfilelayout/flexfilelayout.c | 14 ++++++++------
fs/nfsd/nfs4callback.c | 6 ++----
include/linux/sunrpc/auth.h | 3 ---
net/sunrpc/auth.c | 6 +-----
net/sunrpc/auth_generic.c | 23 ++++++++---------------
net/sunrpc/auth_gss/auth_gss.c | 7 +++----
net/sunrpc/auth_unix.c | 12 ++++++------
7 files changed, 28 insertions(+), 43 deletions(-)
diff --git a/fs/nfs/flexfilelayout/flexfilelayout.c b/fs/nfs/flexfilelayout/flexfilelayout.c
index c2eda56f06bf..c526e17aa326 100644
--- a/fs/nfs/flexfilelayout/flexfilelayout.c
+++ b/fs/nfs/flexfilelayout/flexfilelayout.c
@@ -414,6 +414,8 @@ ff_layout_alloc_lseg(struct pnfs_layout_hdr *lh,
struct auth_cred acred = {};
struct rpc_cred __rcu *cred;
struct cred *kcred;
+ kuid_t uid;
+ kgid_t gid;
u32 ds_count, fh_count, id;
int j;
@@ -481,14 +483,14 @@ ff_layout_alloc_lseg(struct pnfs_layout_hdr *lh,
if (rc)
goto out_err_free;
- acred.uid = make_kuid(&init_user_ns, id);
+ uid = make_kuid(&init_user_ns, id);
/* group */
rc = decode_name(&stream, &id);
if (rc)
goto out_err_free;
- acred.gid = make_kgid(&init_user_ns, id);
+ gid = make_kgid(&init_user_ns, id);
if (gfp_flags & __GFP_FS)
kcred = prepare_kernel_cred(NULL);
@@ -500,8 +502,8 @@ ff_layout_alloc_lseg(struct pnfs_layout_hdr *lh,
rc = -ENOMEM;
if (!kcred)
goto out_err_free;
- kcred->fsuid = acred.uid;
- kcred->fsgid = acred.gid;
+ kcred->fsuid = uid;
+ kcred->fsgid = gid;
acred.cred = kcred;
/* find the cred for it */
@@ -533,8 +535,8 @@ ff_layout_alloc_lseg(struct pnfs_layout_hdr *lh,
dprintk("%s: iomode %s uid %u gid %u\n", __func__,
lgr->range.iomode == IOMODE_READ ? "READ" : "RW",
- from_kuid(&init_user_ns, acred.uid),
- from_kgid(&init_user_ns, acred.gid));
+ from_kuid(&init_user_ns, uid),
+ from_kgid(&init_user_ns, gid));
}
p = xdr_inline_decode(&stream, 4);
diff --git a/fs/nfsd/nfs4callback.c b/fs/nfsd/nfs4callback.c
index 7c7e3510599d..c032e4c24a8d 100644
--- a/fs/nfsd/nfs4callback.c
+++ b/fs/nfsd/nfs4callback.c
@@ -865,10 +865,8 @@ static struct rpc_cred *get_backchannel_cred(struct nfs4_client *clp, struct rpc
if (!kcred)
return NULL;
- acred.uid = ses->se_cb_sec.uid;
- acred.gid = ses->se_cb_sec.gid;
- kcred->uid = acred.uid;
- kcred->gid = acred.gid;
+ kcred->uid = ses->se_cb_sec.uid;
+ kcred->gid = ses->se_cb_sec.gid;
acred.cred = kcred;
ret = auth->au_ops->lookup_cred(client->cl_auth, &acred, 0);
put_cred(kcred);
diff --git a/include/linux/sunrpc/auth.h b/include/linux/sunrpc/auth.h
index 30eb9b9b9c8c..831ea65bd9f4 100644
--- a/include/linux/sunrpc/auth.h
+++ b/include/linux/sunrpc/auth.h
@@ -44,11 +44,8 @@ enum {
key will expire soon */
};
-/* Work around the lack of a VFS credential */
struct auth_cred {
const struct cred *cred;
- kuid_t uid;
- kgid_t gid;
const char *principal;
unsigned long ac_flags;
unsigned char machine_cred : 1;
diff --git a/net/sunrpc/auth.c b/net/sunrpc/auth.c
index e1053b96e0e5..63e2d35c10d5 100644
--- a/net/sunrpc/auth.c
+++ b/net/sunrpc/auth.c
@@ -656,8 +656,6 @@ rpcauth_lookupcred(struct rpc_auth *auth, int flags)
auth->au_ops->au_name);
memset(&acred, 0, sizeof(acred));
- acred.uid = cred->fsuid;
- acred.gid = cred->fsgid;
acred.cred = cred;
ret = auth->au_ops->lookup_cred(auth, &acred, flags);
return ret;
@@ -675,7 +673,7 @@ rpcauth_init_cred(struct rpc_cred *cred, const struct auth_cred *acred,
cred->cr_ops = ops;
cred->cr_expire = jiffies;
cred->cr_cred = get_cred(acred->cred);
- cred->cr_uid = acred->uid;
+ cred->cr_uid = acred->cred->fsuid;
}
EXPORT_SYMBOL_GPL(rpcauth_init_cred);
@@ -693,8 +691,6 @@ rpcauth_bind_root_cred(struct rpc_task *task, int lookupflags)
{
struct rpc_auth *auth = task->tk_client->cl_auth;
struct auth_cred acred = {
- .uid = GLOBAL_ROOT_UID,
- .gid = GLOBAL_ROOT_GID,
.cred = get_task_cred(&init_task),
};
struct rpc_cred *ret;
diff --git a/net/sunrpc/auth_generic.c b/net/sunrpc/auth_generic.c
index c418c1098690..b9481f69ce7b 100644
--- a/net/sunrpc/auth_generic.c
+++ b/net/sunrpc/auth_generic.c
@@ -18,9 +18,6 @@
# define RPCDBG_FACILITY RPCDBG_AUTH
#endif
-#define RPC_MACHINE_CRED_USERID GLOBAL_ROOT_UID
-#define RPC_MACHINE_CRED_GROUPID GLOBAL_ROOT_GID
-
struct generic_cred {
struct rpc_cred gc_base;
struct auth_cred acred;
@@ -57,8 +54,6 @@ EXPORT_SYMBOL_GPL(rpc_lookup_cred_nonblock);
struct rpc_cred *rpc_lookup_machine_cred(const char *service_name)
{
struct auth_cred acred = {
- .uid = RPC_MACHINE_CRED_USERID,
- .gid = RPC_MACHINE_CRED_GROUPID,
.principal = service_name,
.machine_cred = 1,
.cred = get_task_cred(&init_task),
@@ -85,8 +80,8 @@ static struct rpc_cred *generic_bind_cred(struct rpc_task *task,
static int
generic_hash_cred(struct auth_cred *acred, unsigned int hashbits)
{
- return hash_64(from_kgid(&init_user_ns, acred->gid) |
- ((u64)from_kuid(&init_user_ns, acred->uid) <<
+ return hash_64(from_kgid(&init_user_ns, acred->cred->fsgid) |
+ ((u64)from_kuid(&init_user_ns, acred->cred->fsuid) <<
(sizeof(gid_t) * 8)), hashbits);
}
@@ -111,8 +106,6 @@ generic_create_cred(struct rpc_auth *auth, struct auth_cred *acred, int flags, g
rpcauth_init_cred(&gcred->gc_base, acred, &generic_auth, &generic_credops);
gcred->gc_base.cr_flags = 1UL << RPCAUTH_CRED_UPTODATE;
- gcred->acred.uid = acred->uid;
- gcred->acred.gid = acred->gid;
gcred->acred.cred = gcred->gc_base.cr_cred;
gcred->acred.ac_flags = 0;
gcred->acred.machine_cred = acred->machine_cred;
@@ -121,8 +114,8 @@ generic_create_cred(struct rpc_auth *auth, struct auth_cred *acred, int flags, g
dprintk("RPC: allocated %s cred %p for uid %d gid %d\n",
gcred->acred.machine_cred ? "machine" : "generic",
gcred,
- from_kuid(&init_user_ns, acred->uid),
- from_kgid(&init_user_ns, acred->gid));
+ from_kuid(&init_user_ns, acred->cred->fsuid),
+ from_kgid(&init_user_ns, acred->cred->fsgid));
return &gcred->gc_base;
}
@@ -154,8 +147,8 @@ machine_cred_match(struct auth_cred *acred, struct generic_cred *gcred, int flag
{
if (!gcred->acred.machine_cred ||
gcred->acred.principal != acred->principal ||
- !uid_eq(gcred->acred.uid, acred->uid) ||
- !gid_eq(gcred->acred.gid, acred->gid))
+ !uid_eq(gcred->acred.cred->fsuid, acred->cred->fsuid) ||
+ !gid_eq(gcred->acred.cred->fsgid, acred->cred->fsgid))
return 0;
return 1;
}
@@ -173,8 +166,8 @@ generic_match(struct auth_cred *acred, struct rpc_cred *cred, int flags)
if (acred->machine_cred)
return machine_cred_match(acred, gcred, flags);
- if (!uid_eq(gcred->acred.uid, acred->uid) ||
- !gid_eq(gcred->acred.gid, acred->gid) ||
+ if (!uid_eq(gcred->acred.cred->fsuid, acred->cred->fsuid) ||
+ !gid_eq(gcred->acred.cred->fsgid, acred->cred->fsgid) ||
gcred->acred.machine_cred != 0)
goto out_nomatch;
diff --git a/net/sunrpc/auth_gss/auth_gss.c b/net/sunrpc/auth_gss/auth_gss.c
index 092452b9f05c..2501ac3cbdf4 100644
--- a/net/sunrpc/auth_gss/auth_gss.c
+++ b/net/sunrpc/auth_gss/auth_gss.c
@@ -1339,7 +1339,7 @@ gss_destroy_cred(struct rpc_cred *cred)
static int
gss_hash_cred(struct auth_cred *acred, unsigned int hashbits)
{
- return hash_64(from_kuid(&init_user_ns, acred->uid), hashbits);
+ return hash_64(from_kuid(&init_user_ns, acred->cred->fsuid), hashbits);
}
/*
@@ -1359,7 +1359,7 @@ gss_create_cred(struct rpc_auth *auth, struct auth_cred *acred, int flags, gfp_t
int err = -ENOMEM;
dprintk("RPC: %s for uid %d, flavor %d\n",
- __func__, from_kuid(&init_user_ns, acred->uid),
+ __func__, from_kuid(&init_user_ns, acred->cred->fsuid),
auth->au_flavor);
if (!(cred = kzalloc(sizeof(*cred), gfp)))
@@ -1500,7 +1500,7 @@ gss_match(struct auth_cred *acred, struct rpc_cred *rc, int flags)
}
if (gss_cred->gc_principal != NULL)
return 0;
- ret = uid_eq(rc->cr_uid, acred->uid);
+ ret = uid_eq(rc->cr_uid, acred->cred->fsuid);
check_expire:
if (ret == 0)
@@ -1585,7 +1585,6 @@ static int gss_renew_cred(struct rpc_task *task)
gc_base);
struct rpc_auth *auth = oldcred->cr_auth;
struct auth_cred acred = {
- .uid = oldcred->cr_uid,
.cred = oldcred->cr_cred,
.principal = gss_cred->gc_principal,
.machine_cred = (gss_cred->gc_principal != NULL ? 1 : 0),
diff --git a/net/sunrpc/auth_unix.c b/net/sunrpc/auth_unix.c
index 0a6397a099d6..7d4099fc18e7 100644
--- a/net/sunrpc/auth_unix.c
+++ b/net/sunrpc/auth_unix.c
@@ -48,8 +48,8 @@ unx_destroy(struct rpc_auth *auth)
static int
unx_hash_cred(struct auth_cred *acred, unsigned int hashbits)
{
- return hash_64(from_kgid(&init_user_ns, acred->gid) |
- ((u64)from_kuid(&init_user_ns, acred->uid) <<
+ return hash_64(from_kgid(&init_user_ns, acred->cred->fsgid) |
+ ((u64)from_kuid(&init_user_ns, acred->cred->fsuid) <<
(sizeof(gid_t) * 8)), hashbits);
}
@@ -70,8 +70,8 @@ unx_create_cred(struct rpc_auth *auth, struct auth_cred *acred, int flags, gfp_t
unsigned int i;
dprintk("RPC: allocating UNIX cred for uid %d gid %d\n",
- from_kuid(&init_user_ns, acred->uid),
- from_kgid(&init_user_ns, acred->gid));
+ from_kuid(&init_user_ns, acred->cred->fsuid),
+ from_kgid(&init_user_ns, acred->cred->fsgid));
if (!(cred = kmalloc(sizeof(*cred), gfp)))
return ERR_PTR(-ENOMEM);
@@ -84,7 +84,7 @@ unx_create_cred(struct rpc_auth *auth, struct auth_cred *acred, int flags, gfp_t
if (groups > UNX_NGROUPS)
groups = UNX_NGROUPS;
- cred->uc_gid = acred->gid;
+ cred->uc_gid = acred->cred->fsgid;
for (i = 0; i < groups; i++)
cred->uc_gids[i] = acred->cred->group_info->gid[i];
if (i < UNX_NGROUPS)
@@ -127,7 +127,7 @@ unx_match(struct auth_cred *acred, struct rpc_cred *rcred, int flags)
unsigned int i;
- if (!uid_eq(cred->uc_uid, acred->uid) || !gid_eq(cred->uc_gid, acred->gid))
+ if (!uid_eq(cred->uc_uid, acred->cred->fsuid) || !gid_eq(cred->uc_gid, acred->cred->fsgid))
return 0;
if (acred->cred && acred->cred->group_info != NULL)
next prev parent reply other threads:[~2018-11-07 4:14 UTC|newest]
Thread overview: 31+ messages / expand[flat|nested] mbox.gz Atom feed top
2018-11-07 4:12 [PATCH 00/23 - V4] NFS: Remove generic RPC credentials NeilBrown
2018-11-07 4:12 ` [PATCH 06/23] SUNRPC: remove groupinfo from struct auth_cred NeilBrown
2018-11-07 4:12 ` [PATCH 03/23] cred: export get_task_cred() NeilBrown
2018-11-07 4:12 ` [PATCH 04/23] cred: allow get_cred() and put_cred() to be given NULL NeilBrown
2018-11-07 4:12 ` [PATCH 05/23] SUNRPC: add 'struct cred *' to auth_cred and rpc_cred NeilBrown
2018-11-07 4:12 ` [PATCH 01/23] cred: add cred_fscmp() for comparing creds NeilBrown
2018-11-07 4:12 ` [PATCH 02/23] cred: add get_cred_rcu() NeilBrown
2018-11-07 4:12 ` [PATCH 21/23] SUNRPC: remove crbind rpc_cred operation NeilBrown
2018-11-07 4:12 ` [PATCH 11/23] SUNRPC: discard RPC_DO_ROOTOVERRIDE() NeilBrown
2018-11-07 4:12 ` [PATCH 22/23] SUNRPC: simplify auth_unix NeilBrown
2018-11-07 15:19 ` Chuck Lever
2018-11-08 1:41 ` NeilBrown
2018-11-08 15:54 ` Chuck Lever
2018-11-09 0:45 ` NeilBrown
2018-11-07 4:12 ` [PATCH 18/23] NFS: struct nfs_open_dir_context: convert rpc_cred pointer to cred NeilBrown
2018-11-07 4:12 ` [PATCH 20/23] SUNRPC: remove generic cred code NeilBrown
2018-11-07 4:12 ` [PATCH 23/23] SUNRPC discard cr_uid from struct rpc_cred NeilBrown
2018-11-07 4:12 ` [PATCH 10/23] NFSv4: don't require lock for get_renew_cred or get_machine_cred NeilBrown
2018-11-07 4:12 ` [PATCH 19/23] NFS/NFSD/SUNRPC: replace generic creds with 'struct cred' NeilBrown
2018-11-07 4:12 ` [PATCH 12/23] NFS/SUNRPC: don't lookup machine credential until rpcauth_bindcred() NeilBrown
2018-11-07 4:12 ` [PATCH 17/23] NFS: change access cache to use 'struct cred' NeilBrown
2018-11-07 4:12 ` NeilBrown [this message]
2018-11-07 4:12 ` [PATCH 16/23] SUNRPC: remove RPCAUTH_AUTH_NO_CRKEY_TIMEOUT NeilBrown
2018-11-07 4:12 ` [PATCH 09/23] NFSv4: add cl_root_cred for use when machine cred is not available NeilBrown
2018-11-07 4:12 ` [PATCH 14/23] SUNRPC: add side channel to use non-generic cred for rpc call NeilBrown
2018-11-07 4:12 ` [PATCH 13/23] SUNRPC: introduce RPC_TASK_NULLCREDS to request auth_none NeilBrown
2018-11-07 4:12 ` [PATCH 08/23] SUNRPC: remove machine_cred field from struct auth_cred NeilBrown
2018-11-07 4:12 ` [PATCH 15/23] NFS: move credential expiry tracking out of SUNRPC into NFS NeilBrown
2018-11-29 23:19 ` [PATCH 00/23 - V4] NFS: Remove generic RPC credentials NeilBrown
2018-11-30 19:39 ` Schumaker, Anna
2018-12-03 0:30 [PATCH 00/23 - V5] " NeilBrown
2018-12-03 0:30 ` [PATCH 07/23] SUNRPC: remove uid and gid from struct auth_cred NeilBrown
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