static int ntfs_mountroot(void) { struct mount *mp; struct lwp *l = curlwp; /* XXX */ int error; struct ntfs_args args; if (device_class(root_device) != DV_DISK) return (ENODEV); if ((error = vfs_rootmountalloc(MOUNT_NTFS, "root_device", &mp))) { vrele(rootvp); return (error); } args.flag = 0; args.uid = 0; args.gid = 0; args.mode = 0777; if ((error = ntfs_mountfs(rootvp, mp, &args, l)) != 0) { vfs_unbusy(mp, false, NULL); vfs_destroy(mp); return (error); } mountlist_append(mp); (void)ntfs_statvfs(mp, &mp->mnt_stat); vfs_unbusy(mp, false, NULL); return (0); }
int ext2fs_mountroot(void) { extern struct vnode *rootvp; struct m_ext2fs *fs; struct mount *mp; struct ufsmount *ump; int error; if (device_class(root_device) != DV_DISK) return ENODEV; if ((error = vfs_rootmountalloc(MOUNT_EXT2FS, "root_device", &mp))) { vrele(rootvp); return error; } if ((error = ext2fs_mountfs(rootvp, mp)) != 0) { vfs_unbusy(mp, false, NULL); vfs_destroy(mp); return error; } mountlist_append(mp); ump = VFSTOUFS(mp); fs = ump->um_e2fs; ext2fs_sb_setmountinfo(fs, mp); (void)ext2fs_statvfs(mp, &mp->mnt_stat); vfs_unbusy(mp, false, NULL); setrootfstime((time_t)fs->e2fs.e2fs_wtime); return 0; }
int v7fs_mountroot(void) { struct mount *mp; int error; DPRINTF(""); /* On mountroot, devvp (rootdev) is opened by vfs_mountroot */ if ((error = is_v7fs_partition (rootvp))) return error; if ((error = vfs_rootmountalloc(MOUNT_V7FS, "root_device", &mp))) { DPRINTF("mountalloc error=%d\n", error); vrele(rootvp); return error; } if ((error = v7fs_mountfs(rootvp, mp, _BYTE_ORDER))) { DPRINTF("mountfs error=%d\n", error); vfs_unbusy(mp, false, NULL); vfs_destroy(mp); return error; } mountlist_append(mp); vfs_unbusy(mp, false, NULL); return 0; }
int cd9660_mountroot(void) { struct mount *mp; struct lwp *l = curlwp; int error; struct iso_args args; if (device_class(root_device) != DV_DISK) return (ENODEV); if ((error = vfs_rootmountalloc(MOUNT_CD9660, "root_device", &mp)) != 0) { vrele(rootvp); return (error); } args.flags = ISOFSMNT_ROOT; if ((error = iso_mountfs(rootvp, mp, l, &args)) != 0) { vfs_unbusy(mp, false, NULL); vfs_destroy(mp); return (error); } mountlist_append(mp); (void)cd9660_statvfs(mp, &mp->mnt_stat); vfs_unbusy(mp, false, NULL); return (0); }
int mfs_mountroot(void) { struct fs *fs; struct mount *mp; struct lwp *l = curlwp; /* XXX */ struct ufsmount *ump; struct mfsnode *mfsp; int error = 0; if ((error = vfs_rootmountalloc(MOUNT_MFS, "mfs_root", &mp))) { vrele(rootvp); return (error); } mfsp = kmem_alloc(sizeof(*mfsp), KM_SLEEP); rootvp->v_data = mfsp; rootvp->v_op = mfs_vnodeop_p; rootvp->v_tag = VT_MFS; mfsp->mfs_baseoff = mfs_rootbase; mfsp->mfs_size = mfs_rootsize; mfsp->mfs_vnode = rootvp; mfsp->mfs_proc = NULL; /* indicate kernel space */ mfsp->mfs_shutdown = 0; cv_init(&mfsp->mfs_cv, "mfs"); mfsp->mfs_refcnt = 1; bufq_alloc(&mfsp->mfs_buflist, "fcfs", 0); if ((error = ffs_mountfs(rootvp, mp, l)) != 0) { vfs_unbusy(mp, false, NULL); bufq_free(mfsp->mfs_buflist); vfs_destroy(mp); kmem_free(mfsp, sizeof(*mfsp)); return (error); } mountlist_append(mp); mp->mnt_vnodecovered = NULLVP; ump = VFSTOUFS(mp); fs = ump->um_fs; (void) copystr(mp->mnt_stat.f_mntonname, fs->fs_fsmnt, MNAMELEN - 1, 0); (void)ffs_statvfs(mp, &mp->mnt_stat); vfs_unbusy(mp, false, NULL); return (0); }
int msdosfs_mountroot(void) { struct mount *mp; struct lwp *l = curlwp; /* XXX */ int error; struct msdosfs_args args; if (device_class(root_device) != DV_DISK) return (ENODEV); if ((error = vfs_rootmountalloc(MOUNT_MSDOS, "root_device", &mp))) { vrele(rootvp); return (error); } args.flags = MSDOSFSMNT_VERSIONED; args.uid = 0; args.gid = 0; args.mask = 0777; args.version = MSDOSFSMNT_VERSION; args.dirmask = 0777; if ((error = msdosfs_mountfs(rootvp, mp, l, &args)) != 0) { vfs_unbusy(mp, false, NULL); vfs_destroy(mp); return (error); } if ((error = update_mp(mp, &args)) != 0) { (void)msdosfs_unmount(mp, 0); vfs_unbusy(mp, false, NULL); vfs_destroy(mp); vrele(rootvp); return (error); } mountlist_append(mp); (void)msdosfs_statvfs(mp, &mp->mnt_stat); vfs_unbusy(mp, false, NULL); return (0); }
int ext2fs_mountroot(void) { // printf("ext2fs_mountroot\n"); extern struct vnode *rootvp; struct m_ext2fs *fs; struct mount *mp; struct ufsmount *ump; int error; if (device_class(root_device) != DV_DISK) return (ENODEV); if ((error = vfs_rootmountalloc(MOUNT_EXT2FS, "root_device", &mp))) { vrele(rootvp); return (error); } if ((error = ext2fs_mountfs(rootvp, mp)) != 0) { vfs_unbusy(mp, false, NULL); vfs_destroy(mp); return (error); } mountlist_append(mp); ump = VFSTOUFS(mp); fs = ump->um_e2fs; memset(fs->e2fs_fsmnt, 0, sizeof(fs->e2fs_fsmnt)); (void) copystr(mp->mnt_stat.f_mntonname, fs->e2fs_fsmnt, sizeof(fs->e2fs_fsmnt) - 1, 0); if (fs->e2fs.e2fs_rev > E2FS_REV0) { memset(fs->e2fs.e2fs_fsmnt, 0, sizeof(fs->e2fs.e2fs_fsmnt)); (void) copystr(mp->mnt_stat.f_mntonname, fs->e2fs.e2fs_fsmnt, sizeof(fs->e2fs.e2fs_fsmnt) - 1, 0); } (void)ext2fs_statvfs(mp, &mp->mnt_stat); vfs_unbusy(mp, false, NULL); setrootfstime((time_t)fs->e2fs.e2fs_wtime); return (0); }
/* * Mount a remote root fs via. NFS. It goes like this: * - Call nfs_boot_init() to fill in the nfs_diskless struct * - build the rootfs mount point and call mountnfs() to do the rest. */ int nfs_mountroot(void) { struct timespec ts; struct nfs_diskless *nd; struct vattr attr; struct mount *mp; struct vnode *vp; struct lwp *l; long n; int error; l = curlwp; /* XXX */ if (device_class(root_device) != DV_IFNET) return (ENODEV); /* * XXX time must be non-zero when we init the interface or else * the arp code will wedge. [Fixed now in if_ether.c] * However, the NFS attribute cache gives false "hits" when the * current time < nfs_attrtimeo(nmp, np) so keep this in for now. */ if (time_second < NFS_MAXATTRTIMO) { ts.tv_sec = NFS_MAXATTRTIMO; ts.tv_nsec = 0; tc_setclock(&ts); } /* * Call nfs_boot_init() to fill in the nfs_diskless struct. * Side effect: Finds and configures a network interface. */ nd = kmem_zalloc(sizeof(*nd), KM_SLEEP); error = nfs_boot_init(nd, l); if (error) { kmem_free(nd, sizeof(*nd)); return (error); } /* * Create the root mount point. */ error = nfs_mount_diskless(&nd->nd_root, "/", &mp, &vp, l); if (error) goto out; printf("root on %s\n", nd->nd_root.ndm_host); /* * Link it into the mount list. */ mountlist_append(mp); rootvp = vp; mp->mnt_vnodecovered = NULLVP; vfs_unbusy(mp, false, NULL); /* Get root attributes (for the time). */ vn_lock(vp, LK_SHARED | LK_RETRY); error = VOP_GETATTR(vp, &attr, l->l_cred); VOP_UNLOCK(vp); if (error) panic("nfs_mountroot: getattr for root"); n = attr.va_atime.tv_sec; #ifdef DEBUG printf("root time: 0x%lx\n", n); #endif setrootfstime(n); out: if (error) nfs_boot_cleanup(nd, l); kmem_free(nd, sizeof(*nd)); return (error); }
int domount(kthread_t *td, vnode_t *vp, const char *fstype, char *fspath, char *fspec, int fsflags) { struct mount *mp; struct vfsconf *vfsp; struct ucred *newcr, *oldcr; int error; /* * Be ultra-paranoid about making sure the type and fspath * variables will fit in our mp buffers, including the * terminating NUL. */ if (strlen(fstype) >= MFSNAMELEN || strlen(fspath) >= MNAMELEN) return (ENAMETOOLONG); vfsp = vfs_byname_kld(fstype, td, &error); if (vfsp == NULL) return (ENODEV); if (vp->v_type != VDIR) return (ENOTDIR); simple_lock(&vp->v_interlock); if ((vp->v_iflag & VI_MOUNT) != 0 || vp->v_mountedhere != NULL) { simple_unlock(&vp->v_interlock); return (EBUSY); } vp->v_iflag |= VI_MOUNT; simple_unlock(&vp->v_interlock); /* * Allocate and initialize the filesystem. */ vn_lock(vp, LK_SHARED | LK_RETRY); mp = vfs_mount_alloc(vp, vfsp, fspath, td); VOP_UNLOCK(vp); mp->mnt_optnew = NULL; vfs_setmntopt(mp, "from", fspec, 0); mp->mnt_optnew = mp->mnt_opt; mp->mnt_opt = NULL; /* * Set the mount level flags. * crdup() can sleep, so do it before acquiring a mutex. */ newcr = crdup(kcred); MNT_ILOCK(mp); if (fsflags & MNT_RDONLY) mp->mnt_flag |= MNT_RDONLY; mp->mnt_flag &=~ MNT_UPDATEMASK; mp->mnt_flag |= fsflags & (MNT_UPDATEMASK | MNT_FORCE | MNT_ROOTFS); /* * Unprivileged user can trigger mounting a snapshot, but we don't want * him to unmount it, so we switch to privileged credentials. */ oldcr = mp->mnt_cred; mp->mnt_cred = newcr; mp->mnt_stat.f_owner = mp->mnt_cred->cr_uid; MNT_IUNLOCK(mp); crfree(oldcr); /* * Mount the filesystem. * XXX The final recipients of VFS_MOUNT just overwrite the ndp they * get. No freeing of cn_pnbuf. */ error = VFS_MOUNT(mp, td); if (!error) { if (mp->mnt_opt != NULL) vfs_freeopts(mp->mnt_opt); mp->mnt_opt = mp->mnt_optnew; (void)VFS_STATFS(mp, &mp->mnt_stat, td); } /* * Prevent external consumers of mount options from reading * mnt_optnew. */ mp->mnt_optnew = NULL; vn_lock(vp, LK_EXCLUSIVE | LK_RETRY); /* * Put the new filesystem on the mount list after root. */ #ifdef FREEBSD_NAMECACHE cache_purge(vp); #endif if (!error) { vnode_t *mvp; simple_lock(&vp->v_interlock); vp->v_iflag &= ~VI_MOUNT; simple_unlock(&vp->v_interlock); vp->v_mountedhere = mp; mountlist_append(mp); vfs_event_signal(NULL, VQ_MOUNT, 0); if (VFS_ROOT(mp, LK_EXCLUSIVE, &mvp, td)) panic("mount: lost mount"); mountcheckdirs(vp, mvp); vput(mvp); VOP_UNLOCK(vp); if ((mp->mnt_flag & MNT_RDONLY) == 0) vfs_syncer_add_to_worklist(mp); vfs_unbusy(mp, td); vfs_mountedfrom(mp, fspec); } else { simple_lock(&vp->v_interlock); vp->v_iflag &= ~VI_MOUNT; simple_unlock(&vp->v_interlock); VOP_UNLOCK(vp); vfs_unbusy(mp, td); vfs_mount_destroy(mp); } return (error); }