1 #include <u.h>
2 #include <sys/socket.h>
3 #include <sys/mount.h>
4 #ifdef __Linux24__
5 #	define __KERNEL__
6 #	include <linux/nfs.h>
7 #	undef __KERNEL__
8 #else
9 #	include <linux/nfs.h>
10 #endif
11 #include <linux/nfs2.h>
12 #include <linux/nfs_mount.h>
13 #include <libc.h>
14 #include "mountnfs.h"
15 
16 void
17 mountnfs(int proto, struct sockaddr_in *sa, uchar *handle, int nhandle, char *mtpt)
18 {
19 	int mflag, fd;
20 	struct nfs_mount_data nfs;
21 
22 	fd = socket(AF_INET, proto, proto==SOCK_STREAM ? IPPROTO_TCP : IPPROTO_UDP);
23 	if(fd < 0)
24 		sysfatal("socket: %r");
25 
26 	memset(&nfs, 0, sizeof nfs);
27 	nfs.version = NFS_MOUNT_VERSION;
28 	nfs.fd = fd;
29 	nfs.flags =
30 		NFS_MOUNT_SOFT|
31 		NFS_MOUNT_INTR|
32 		NFS_MOUNT_NOAC|
33 		NFS_MOUNT_NOCTO|
34 		NFS_MOUNT_VER3|
35 		NFS_MOUNT_NONLM;
36 	if(proto==SOCK_STREAM)
37 		nfs.flags |= NFS_MOUNT_TCP;
38 	nfs.rsize = 8192;
39 	nfs.wsize = 8192;
40 	nfs.timeo = 120;
41 	nfs.retrans = 2;
42 	nfs.acregmin = 60;
43 	nfs.acregmax = 600;
44 	nfs.acdirmin = 60;
45 	nfs.acdirmax = 600;
46 	nfs.addr = *sa;
47 	strcpy(nfs.hostname, "backup");
48 	nfs.namlen = 1024;
49 	nfs.bsize = 8192;
50 	memcpy(nfs.root.data, handle, nhandle);
51 	nfs.root.size = nhandle;
52 	mflag = MS_NOATIME|MS_NODEV|MS_NODIRATIME|
53 		MS_NOEXEC|MS_NOSUID|MS_RDONLY;
54 
55 	if(mount("backup:/", mtpt, "nfs", mflag, &nfs) < 0)
56 		sysfatal("mount: %r");
57 }
58