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NFS: Store the credential of the mount process in the nfs_server 

Store the credential of the mount process so that we can determine
information such as the user namespace.

Signed-off-by: Trond Myklebust <trond.myklebust@hammerspace.com>
Signed-off-by: Anna Schumaker <Anna.Schumaker@Netapp.com>
This commit is contained in:
Trond Myklebust 2019-04-24 17:46:43 -04:00 committed by Anna Schumaker
parent 79caa5fad4
commit 1a58e8a0e5
5 changed files with 18 additions and 1 deletions
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8
fs/nfs/client.c
View File

@ -500,7 +500,7 @@ int nfs_create_rpc_client(struct nfs_client *clp,
.program = &nfs_program,
.version = clp->rpc_ops->version,
.authflavor = flavor,
.cred = current_cred(),
.cred = cl_init->cred,
};
if (test_bit(NFS_CS_DISCRTRY, &clp->cl_flags))
@ -655,6 +655,7 @@ static int nfs_init_server(struct nfs_server *server,
.proto = data->nfs_server.protocol,
.net = data->net,
.timeparms = &timeparms,
.cred = server->cred,
};
struct nfs_client *clp;
int error;
@ -923,6 +924,7 @@ void nfs_free_server(struct nfs_server *server)
ida_destroy(&server->lockowner_id);
ida_destroy(&server->openowner_id);
nfs_free_iostats(server->io_stats);
put_cred(server->cred);
kfree(server);
nfs_release_automount_timer();
}
@ -943,6 +945,8 @@ struct nfs_server *nfs_create_server(struct nfs_mount_info *mount_info,
if (!server)
return ERR_PTR(-ENOMEM);
server->cred = get_cred(current_cred());
error = -ENOMEM;
fattr = nfs_alloc_fattr();
if (fattr == NULL)
@ -1009,6 +1013,8 @@ struct nfs_server *nfs_clone_server(struct nfs_server *source,
if (!server)
return ERR_PTR(-ENOMEM);
server->cred = get_cred(source->cred);
error = -ENOMEM;
fattr_fsinfo = nfs_alloc_fattr();
if (fattr_fsinfo == NULL)

1
fs/nfs/internal.h
View File

@ -84,6 +84,7 @@ struct nfs_client_initdata {
u32 minorversion;
struct net *net;
const struct rpc_timeout *timeparms;
const struct cred *cred;
};
/*

1
fs/nfs/nfs3client.c
View File

@ -91,6 +91,7 @@ struct nfs_client *nfs3_set_ds_client(struct nfs_server *mds_srv,
.proto = ds_proto,
.net = mds_clp->cl_net,
.timeparms = &ds_timeout,
.cred = mds_srv->cred,
};
struct nfs_client *clp;
char buf[INET6_ADDRSTRLEN + 1];

6
fs/nfs/nfs4client.c
View File

@ -870,6 +870,7 @@ static int nfs4_set_client(struct nfs_server *server,
.minorversion = minorversion,
.net = net,
.timeparms = timeparms,
.cred = server->cred,
};
struct nfs_client *clp;
@ -931,6 +932,7 @@ struct nfs_client *nfs4_set_ds_client(struct nfs_server *mds_srv,
.minorversion = minor_version,
.net = mds_clp->cl_net,
.timeparms = &ds_timeout,
.cred = mds_srv->cred,
};
char buf[INET6_ADDRSTRLEN + 1];
@ -1107,6 +1109,8 @@ struct nfs_server *nfs4_create_server(struct nfs_mount_info *mount_info,
if (!server)
return ERR_PTR(-ENOMEM);
server->cred = get_cred(current_cred());
auth_probe = mount_info->parsed->auth_info.flavor_len < 1;
/* set up the general RPC client */
@ -1143,6 +1147,8 @@ struct nfs_server *nfs4_create_referral_server(struct nfs_clone_mount *data,
parent_server = NFS_SB(data->sb);
parent_client = parent_server->nfs_client;
server->cred = get_cred(parent_server->cred);
/* Initialise the client representation from the parent server */
nfs_server_copy_userdata(server, parent_server);

3
include/linux/nfs_fs_sb.h
View File

@ -241,6 +241,9 @@ struct nfs_server {
/* XDR related information */
unsigned int read_hdrsize;
/* User namespace info */
const struct cred *cred;
};
/* Server capabilities */