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Dump-like file system backup for Unix, built on Venti.

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rsc 2005-07-13 03:49:41 +00:00
parent 0c98da8bf8
commit 004aa293f3
27 changed files with 4437 additions and 0 deletions
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58
src/cmd/vbackup/mount-Linux.c Normal file
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#include <u.h>
#include <sys/socket.h>
#include <sys/mount.h>
#ifdef __Linux24__
# define __KERNEL__
# include <linux/nfs.h>
# undef __KERNEL__
#else
# include <linux/nfs.h>
#endif
#include <linux/nfs2.h>
#include <linux/nfs_mount.h>
#include <libc.h>
#include "mountnfs.h"
void
mountnfs(int proto, struct sockaddr_in *sa, uchar *handle, int nhandle, char *mtpt)
{
int mflag, fd;
struct nfs_mount_data nfs;
fd = socket(AF_INET, proto, proto==SOCK_STREAM ? IPPROTO_TCP : IPPROTO_UDP);
if(fd < 0)
sysfatal("socket: %r");
memset(&nfs, 0, sizeof nfs);
nfs.version = NFS_MOUNT_VERSION;
nfs.fd = fd;
nfs.flags =
NFS_MOUNT_SOFT|
NFS_MOUNT_INTR|
NFS_MOUNT_NOAC|
NFS_MOUNT_NOCTO|
NFS_MOUNT_VER3|
NFS_MOUNT_NONLM;
if(proto==SOCK_STREAM)
nfs.flags |= NFS_MOUNT_TCP;
nfs.rsize = 8192;
nfs.wsize = 8192;
nfs.timeo = 120;
nfs.retrans = 2;
nfs.acregmin = 60;
nfs.acregmax = 600;
nfs.acdirmin = 60;
nfs.acdirmax = 600;
nfs.addr = *sa;
strcpy(nfs.hostname, "backup");
nfs.namlen = 1024;
nfs.bsize = 8192;
memcpy(nfs.root.data, handle, nhandle);
nfs.root.size = nhandle;
mflag = MS_NOATIME|MS_NODEV|MS_NODIRATIME|
MS_NOEXEC|MS_NOSUID|MS_RDONLY;
if(mount("backup:/", mtpt, "nfs", mflag, &nfs) < 0)
sysfatal("mount: %r");
}