mount-Linux.c (1295B)
1 #include <u.h> 2 #include <sys/socket.h> 3 #include <sys/mount.h> 4 #include <linux/version.h> 5 #if LINUX_VERSION_CODE < 0x020600 6 # define __KERNEL__ 7 # include <linux/nfs.h> 8 # undef __KERNEL__ 9 #else 10 # include <linux/nfs.h> 11 #endif 12 #include <linux/nfs2.h> 13 #include <linux/nfs_mount.h> 14 #include <libc.h> 15 #include "mountnfs.h" 16 17 void 18 mountnfs(int proto, struct sockaddr_in *sa, uchar *handle, int nhandle, char *mtpt) 19 { 20 int mflag, fd; 21 struct nfs_mount_data nfs; 22 23 fd = socket(AF_INET, proto, proto==SOCK_STREAM ? IPPROTO_TCP : IPPROTO_UDP); 24 if(fd < 0) 25 sysfatal("socket: %r"); 26 27 memset(&nfs, 0, sizeof nfs); 28 nfs.version = NFS_MOUNT_VERSION; 29 nfs.fd = fd; 30 nfs.flags = 31 NFS_MOUNT_SOFT| 32 NFS_MOUNT_INTR| 33 NFS_MOUNT_NOAC| 34 NFS_MOUNT_NOCTO| 35 NFS_MOUNT_VER3| 36 NFS_MOUNT_NONLM; 37 if(proto==SOCK_STREAM) 38 nfs.flags |= NFS_MOUNT_TCP; 39 nfs.rsize = 8192; 40 nfs.wsize = 8192; 41 nfs.timeo = 120; 42 nfs.retrans = 2; 43 nfs.acregmin = 60; 44 nfs.acregmax = 600; 45 nfs.acdirmin = 60; 46 nfs.acdirmax = 600; 47 nfs.addr = *sa; 48 strcpy(nfs.hostname, "backup"); 49 nfs.namlen = 1024; 50 nfs.bsize = 8192; 51 memcpy(nfs.root.data, handle, nhandle); 52 nfs.root.size = nhandle; 53 mflag = MS_NOATIME|MS_NODEV|MS_NODIRATIME| 54 MS_NOEXEC|MS_NOSUID|MS_RDONLY; 55 56 if(mount("backup:/", mtpt, "nfs", mflag, &nfs) < 0) 57 sysfatal("mount: %r"); 58 }