Linux-2.6.12-rc2
Initial git repository build. I'm not bothering with the full history,
even though we have it. We can create a separate "historical" git
archive of that later if we want to, and in the meantime it's about
3.2GB when imported into git - space that would just make the early
git days unnecessarily complicated, when we don't have a lot of good
infrastructure for it.
Let it rip!
diff --git a/fs/nfs/mount_clnt.c b/fs/nfs/mount_clnt.c
new file mode 100644
index 0000000..9d3ddad
--- /dev/null
+++ b/fs/nfs/mount_clnt.c
@@ -0,0 +1,183 @@
+/*
+ * linux/fs/nfs/mount_clnt.c
+ *
+ * MOUNT client to support NFSroot.
+ *
+ * Copyright (C) 1997, Olaf Kirch <okir@monad.swb.de>
+ */
+
+#include <linux/types.h>
+#include <linux/socket.h>
+#include <linux/kernel.h>
+#include <linux/errno.h>
+#include <linux/uio.h>
+#include <linux/net.h>
+#include <linux/in.h>
+#include <linux/sunrpc/clnt.h>
+#include <linux/sunrpc/xprt.h>
+#include <linux/sunrpc/sched.h>
+#include <linux/nfs_fs.h>
+
+#ifdef RPC_DEBUG
+# define NFSDBG_FACILITY NFSDBG_ROOT
+#endif
+
+/*
+#define MOUNT_PROGRAM 100005
+#define MOUNT_VERSION 1
+#define MOUNT_MNT 1
+#define MOUNT_UMNT 3
+ */
+
+static struct rpc_clnt * mnt_create(char *, struct sockaddr_in *,
+ int, int);
+static struct rpc_program mnt_program;
+
+struct mnt_fhstatus {
+ unsigned int status;
+ struct nfs_fh * fh;
+};
+
+/*
+ * Obtain an NFS file handle for the given host and path
+ */
+int
+nfsroot_mount(struct sockaddr_in *addr, char *path, struct nfs_fh *fh,
+ int version, int protocol)
+{
+ struct rpc_clnt *mnt_clnt;
+ struct mnt_fhstatus result = {
+ .fh = fh
+ };
+ char hostname[32];
+ int status;
+ int call;
+
+ dprintk("NFS: nfs_mount(%08x:%s)\n",
+ (unsigned)ntohl(addr->sin_addr.s_addr), path);
+
+ sprintf(hostname, "%u.%u.%u.%u", NIPQUAD(addr->sin_addr.s_addr));
+ mnt_clnt = mnt_create(hostname, addr, version, protocol);
+ if (IS_ERR(mnt_clnt))
+ return PTR_ERR(mnt_clnt);
+
+ call = (version == NFS_MNT3_VERSION) ? MOUNTPROC3_MNT : MNTPROC_MNT;
+ status = rpc_call(mnt_clnt, call, path, &result, 0);
+ return status < 0? status : (result.status? -EACCES : 0);
+}
+
+static struct rpc_clnt *
+mnt_create(char *hostname, struct sockaddr_in *srvaddr, int version,
+ int protocol)
+{
+ struct rpc_xprt *xprt;
+ struct rpc_clnt *clnt;
+
+ xprt = xprt_create_proto(protocol, srvaddr, NULL);
+ if (IS_ERR(xprt))
+ return (struct rpc_clnt *)xprt;
+
+ clnt = rpc_create_client(xprt, hostname,
+ &mnt_program, version,
+ RPC_AUTH_UNIX);
+ if (IS_ERR(clnt)) {
+ xprt_destroy(xprt);
+ } else {
+ clnt->cl_softrtry = 1;
+ clnt->cl_chatty = 1;
+ clnt->cl_oneshot = 1;
+ clnt->cl_intr = 1;
+ }
+ return clnt;
+}
+
+/*
+ * XDR encode/decode functions for MOUNT
+ */
+static int
+xdr_encode_dirpath(struct rpc_rqst *req, u32 *p, const char *path)
+{
+ p = xdr_encode_string(p, path);
+
+ req->rq_slen = xdr_adjust_iovec(req->rq_svec, p);
+ return 0;
+}
+
+static int
+xdr_decode_fhstatus(struct rpc_rqst *req, u32 *p, struct mnt_fhstatus *res)
+{
+ struct nfs_fh *fh = res->fh;
+
+ if ((res->status = ntohl(*p++)) == 0) {
+ fh->size = NFS2_FHSIZE;
+ memcpy(fh->data, p, NFS2_FHSIZE);
+ }
+ return 0;
+}
+
+static int
+xdr_decode_fhstatus3(struct rpc_rqst *req, u32 *p, struct mnt_fhstatus *res)
+{
+ struct nfs_fh *fh = res->fh;
+
+ if ((res->status = ntohl(*p++)) == 0) {
+ int size = ntohl(*p++);
+ if (size <= NFS3_FHSIZE) {
+ fh->size = size;
+ memcpy(fh->data, p, size);
+ } else
+ res->status = -EBADHANDLE;
+ }
+ return 0;
+}
+
+#define MNT_dirpath_sz (1 + 256)
+#define MNT_fhstatus_sz (1 + 8)
+
+static struct rpc_procinfo mnt_procedures[] = {
+[MNTPROC_MNT] = {
+ .p_proc = MNTPROC_MNT,
+ .p_encode = (kxdrproc_t) xdr_encode_dirpath,
+ .p_decode = (kxdrproc_t) xdr_decode_fhstatus,
+ .p_bufsiz = MNT_dirpath_sz << 2,
+ },
+};
+
+static struct rpc_procinfo mnt3_procedures[] = {
+[MOUNTPROC3_MNT] = {
+ .p_proc = MOUNTPROC3_MNT,
+ .p_encode = (kxdrproc_t) xdr_encode_dirpath,
+ .p_decode = (kxdrproc_t) xdr_decode_fhstatus3,
+ .p_bufsiz = MNT_dirpath_sz << 2,
+ },
+};
+
+
+static struct rpc_version mnt_version1 = {
+ .number = 1,
+ .nrprocs = 2,
+ .procs = mnt_procedures
+};
+
+static struct rpc_version mnt_version3 = {
+ .number = 3,
+ .nrprocs = 2,
+ .procs = mnt3_procedures
+};
+
+static struct rpc_version * mnt_version[] = {
+ NULL,
+ &mnt_version1,
+ NULL,
+ &mnt_version3,
+};
+
+static struct rpc_stat mnt_stats;
+
+static struct rpc_program mnt_program = {
+ .name = "mount",
+ .number = NFS_MNT_PROGRAM,
+ .nrvers = sizeof(mnt_version)/sizeof(mnt_version[0]),
+ .version = mnt_version,
+ .stats = &mnt_stats,
+};