diff options
| -rw-r--r-- | fs/nfs/nfs4proc.c | 51 |
1 files changed, 39 insertions, 12 deletions
diff --git a/fs/nfs/nfs4proc.c b/fs/nfs/nfs4proc.c index 5b3207f557d9..461411171966 100644 --- a/fs/nfs/nfs4proc.c +++ b/fs/nfs/nfs4proc.c @@ -4047,6 +4047,32 @@ static void nfs4_init_boot_verifier(const struct nfs_client *clp, memcpy(bootverf->data, verf, sizeof(bootverf->data)); } +static unsigned int +nfs4_init_nonuniform_client_string(const struct nfs_client *clp, + char *buf, size_t len) +{ + unsigned int result; + + rcu_read_lock(); + result = scnprintf(buf, len, "Linux NFSv4.0 %s/%s %s", + clp->cl_ipaddr, + rpc_peeraddr2str(clp->cl_rpcclient, + RPC_DISPLAY_ADDR), + rpc_peeraddr2str(clp->cl_rpcclient, + RPC_DISPLAY_PROTO)); + rcu_read_unlock(); + return result; +} + +static unsigned int +nfs4_init_uniform_client_string(const struct nfs_client *clp, + char *buf, size_t len) +{ + return scnprintf(buf, len, "Linux NFSv%u.%u %s", + clp->rpc_ops->version, clp->cl_minorversion, + clp->cl_rpcclient->cl_nodename); +} + /** * nfs4_proc_setclientid - Negotiate client ID * @clp: state data structure @@ -4077,15 +4103,18 @@ int nfs4_proc_setclientid(struct nfs_client *clp, u32 program, /* nfs_client_id4 */ nfs4_init_boot_verifier(clp, &sc_verifier); - rcu_read_lock(); - setclientid.sc_name_len = scnprintf(setclientid.sc_name, - sizeof(setclientid.sc_name), "%s/%s %s", - clp->cl_ipaddr, - rpc_peeraddr2str(clp->cl_rpcclient, - RPC_DISPLAY_ADDR), - rpc_peeraddr2str(clp->cl_rpcclient, - RPC_DISPLAY_PROTO)); + if (test_bit(NFS_CS_MIGRATION, &clp->cl_flags)) + setclientid.sc_name_len = + nfs4_init_uniform_client_string(clp, + setclientid.sc_name, + sizeof(setclientid.sc_name)); + else + setclientid.sc_name_len = + nfs4_init_nonuniform_client_string(clp, + setclientid.sc_name, + sizeof(setclientid.sc_name)); /* cb_client4 */ + rcu_read_lock(); setclientid.sc_netid_len = scnprintf(setclientid.sc_netid, sizeof(setclientid.sc_netid), rpc_peeraddr2str(clp->cl_rpcclient, @@ -5307,10 +5336,8 @@ int nfs4_proc_exchange_id(struct nfs_client *clp, struct rpc_cred *cred) }; nfs4_init_boot_verifier(clp, &verifier); - args.id_len = scnprintf(args.id, sizeof(args.id), - "%s/%s", - clp->cl_ipaddr, - clp->cl_rpcclient->cl_nodename); + args.id_len = nfs4_init_uniform_client_string(clp, args.id, + sizeof(args.id)); dprintk("NFS call exchange_id auth=%s, '%.*s'\n", clp->cl_rpcclient->cl_auth->au_ops->au_name, args.id_len, args.id); |