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1179acc6 BS |
1 | #include <linux/nfs_fs.h> |
2 | #include <linux/nfs_mount.h> | |
3 | #include "internal.h" | |
3fc3edf1 | 4 | #include "nfs3_fs.h" |
1179acc6 BS |
5 | |
6 | #ifdef CONFIG_NFS_V3_ACL | |
7 | static struct rpc_stat nfsacl_rpcstat = { &nfsacl_program }; | |
8 | static const struct rpc_version *nfsacl_version[] = { | |
9 | [3] = &nfsacl_version3, | |
10 | }; | |
11 | ||
12 | const struct rpc_program nfsacl_program = { | |
13 | .name = "nfsacl", | |
14 | .number = NFS_ACL_PROGRAM, | |
15 | .nrvers = ARRAY_SIZE(nfsacl_version), | |
16 | .version = nfsacl_version, | |
17 | .stats = &nfsacl_rpcstat, | |
18 | }; | |
19 | ||
20 | /* | |
21 | * Initialise an NFSv3 ACL client connection | |
22 | */ | |
23 | static void nfs_init_server_aclclient(struct nfs_server *server) | |
24 | { | |
25 | if (server->flags & NFS_MOUNT_NOACL) | |
26 | goto out_noacl; | |
27 | ||
28 | server->client_acl = rpc_bind_new_program(server->client, &nfsacl_program, 3); | |
29 | if (IS_ERR(server->client_acl)) | |
30 | goto out_noacl; | |
31 | ||
32 | /* No errors! Assume that Sun nfsacls are supported */ | |
33 | server->caps |= NFS_CAP_ACLS; | |
34 | return; | |
35 | ||
36 | out_noacl: | |
37 | server->caps &= ~NFS_CAP_ACLS; | |
38 | } | |
39 | #else | |
40 | static inline void nfs_init_server_aclclient(struct nfs_server *server) | |
41 | { | |
42 | server->flags &= ~NFS_MOUNT_NOACL; | |
43 | server->caps &= ~NFS_CAP_ACLS; | |
44 | } | |
45 | #endif | |
46 | ||
47 | struct nfs_server *nfs3_create_server(struct nfs_mount_info *mount_info, | |
48 | struct nfs_subversion *nfs_mod) | |
49 | { | |
50 | struct nfs_server *server = nfs_create_server(mount_info, nfs_mod); | |
51 | /* Create a client RPC handle for the NFS v3 ACL management interface */ | |
52 | if (!IS_ERR(server)) | |
53 | nfs_init_server_aclclient(server); | |
54 | return server; | |
55 | } | |
56 | ||
57 | struct nfs_server *nfs3_clone_server(struct nfs_server *source, | |
58 | struct nfs_fh *fh, | |
59 | struct nfs_fattr *fattr, | |
60 | rpc_authflavor_t flavor) | |
61 | { | |
62 | struct nfs_server *server = nfs_clone_server(source, fh, fattr, flavor); | |
63 | if (!IS_ERR(server) && !IS_ERR(source->client_acl)) | |
64 | nfs_init_server_aclclient(server); | |
65 | return server; | |
66 | } | |
1a04c6e1 PT |
67 | |
68 | /* | |
69 | * Set up a pNFS Data Server client over NFSv3. | |
70 | * | |
71 | * Return any existing nfs_client that matches server address,port,version | |
72 | * and minorversion. | |
73 | * | |
74 | * For a new nfs_client, use a soft mount (default), a low retrans and a | |
75 | * low timeout interval so that if a connection is lost, we retry through | |
76 | * the MDS. | |
77 | */ | |
78 | struct nfs_client *nfs3_set_ds_client(struct nfs_client *mds_clp, | |
79 | const struct sockaddr *ds_addr, int ds_addrlen, | |
80 | int ds_proto, unsigned int ds_timeo, unsigned int ds_retrans, | |
81 | rpc_authflavor_t au_flavor) | |
82 | { | |
83 | struct nfs_client_initdata cl_init = { | |
84 | .addr = ds_addr, | |
85 | .addrlen = ds_addrlen, | |
86 | .nfs_mod = &nfs_v3, | |
87 | .proto = ds_proto, | |
88 | .net = mds_clp->cl_net, | |
89 | }; | |
90 | struct rpc_timeout ds_timeout; | |
91 | struct nfs_client *clp; | |
92 | ||
93 | /* Use the MDS nfs_client cl_ipaddr. */ | |
94 | nfs_init_timeout_values(&ds_timeout, ds_proto, ds_timeo, ds_retrans); | |
95 | clp = nfs_get_client(&cl_init, &ds_timeout, mds_clp->cl_ipaddr, | |
96 | au_flavor); | |
97 | ||
98 | return clp; | |
99 | } | |
100 | EXPORT_SYMBOL_GPL(nfs3_set_ds_client); |