diff options
Diffstat (limited to 'fs/nfs/mount_clnt.c')
| -rw-r--r-- | fs/nfs/mount_clnt.c | 39 |
1 files changed, 28 insertions, 11 deletions
diff --git a/fs/nfs/mount_clnt.c b/fs/nfs/mount_clnt.c index d4c2d6b7507..99a45283b9e 100644 --- a/fs/nfs/mount_clnt.c +++ b/fs/nfs/mount_clnt.c @@ -16,7 +16,7 @@ #include <linux/nfs_fs.h> #include "internal.h" -#ifdef RPC_DEBUG +#ifdef NFS_DEBUG # define NFSDBG_FACILITY NFSDBG_MOUNT #endif @@ -67,7 +67,7 @@ enum { MOUNTPROC3_EXPORT = 5, }; -static struct rpc_program mnt_program; +static const struct rpc_program mnt_program; /* * Defined by OpenGroup XNFS Version 3W, chapter 8 @@ -139,7 +139,10 @@ struct mnt_fhstatus { * nfs_mount - Obtain an NFS file handle for the given host and path * @info: pointer to mount request arguments * - * Uses default timeout parameters specified by underlying transport. + * Uses default timeout parameters specified by underlying transport. On + * successful return, the auth_flavs list and auth_flav_len will be populated + * with the list from the server or a faked-up list if the server didn't + * provide one. */ int nfs_mount(struct nfs_mount_request *info) { @@ -153,7 +156,7 @@ int nfs_mount(struct nfs_mount_request *info) .rpc_resp = &result, }; struct rpc_create_args args = { - .net = &init_net, + .net = info->net, .protocol = info->protocol, .address = info->sap, .addrsize = info->salen, @@ -169,6 +172,9 @@ int nfs_mount(struct nfs_mount_request *info) (info->hostname ? info->hostname : "server"), info->dirpath); + if (strlen(info->dirpath) > MNTPATHLEN) + return -ENAMETOOLONG; + if (info->noresvport) args.flags |= RPC_CLNT_CREATE_NONPRIVPORT; @@ -181,7 +187,7 @@ int nfs_mount(struct nfs_mount_request *info) else msg.rpc_proc = &mnt_clnt->cl_procinfo[MOUNTPROC_MNT]; - status = rpc_call_sync(mnt_clnt, &msg, 0); + status = rpc_call_sync(mnt_clnt, &msg, RPC_TASK_SOFT|RPC_TASK_TIMEOUT); rpc_shutdown_client(mnt_clnt); if (status < 0) @@ -192,6 +198,15 @@ int nfs_mount(struct nfs_mount_request *info) dprintk("NFS: MNT request succeeded\n"); status = 0; + /* + * If the server didn't provide a flavor list, allow the + * client to try any flavor. + */ + if (info->version != NFS_MNT3_VERSION || *info->auth_flav_len == 0) { + dprintk("NFS: Faking up auth_flavs list\n"); + info->auth_flavs[0] = RPC_AUTH_NULL; + *info->auth_flav_len = 1; + } out: return status; @@ -225,7 +240,7 @@ void nfs_umount(const struct nfs_mount_request *info) .to_retries = 2, }; struct rpc_create_args args = { - .net = &init_net, + .net = info->net, .protocol = IPPROTO_UDP, .address = info->sap, .addrsize = info->salen, @@ -242,6 +257,9 @@ void nfs_umount(const struct nfs_mount_request *info) struct rpc_clnt *clnt; int status; + if (strlen(info->dirpath) > MNTPATHLEN) + return; + if (info->noresvport) args.flags |= RPC_CLNT_CREATE_NONPRIVPORT; @@ -283,7 +301,6 @@ static void encode_mntdirpath(struct xdr_stream *xdr, const char *pathname) const u32 pathname_len = strlen(pathname); __be32 *p; - BUG_ON(pathname_len > MNTPATHLEN); p = xdr_reserve_space(xdr, 4 + pathname_len); xdr_encode_opaque(p, pathname, pathname_len); } @@ -488,19 +505,19 @@ static struct rpc_procinfo mnt3_procedures[] = { }; -static struct rpc_version mnt_version1 = { +static const struct rpc_version mnt_version1 = { .number = 1, .nrprocs = ARRAY_SIZE(mnt_procedures), .procs = mnt_procedures, }; -static struct rpc_version mnt_version3 = { +static const struct rpc_version mnt_version3 = { .number = 3, .nrprocs = ARRAY_SIZE(mnt3_procedures), .procs = mnt3_procedures, }; -static struct rpc_version *mnt_version[] = { +static const struct rpc_version *mnt_version[] = { NULL, &mnt_version1, NULL, @@ -509,7 +526,7 @@ static struct rpc_version *mnt_version[] = { static struct rpc_stat mnt_stats; -static struct rpc_program mnt_program = { +static const struct rpc_program mnt_program = { .name = "mount", .number = NFS_MNT_PROGRAM, .nrvers = ARRAY_SIZE(mnt_version), |