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head/sys/fs/nfsserver/nfs_nfsdport.c
| Show First 20 Lines • Show All 341 Lines • ▼ Show 20 Lines | nfsvno_namei(struct nfsrv_descript *nd, struct nameidata *ndp, | ||||
| struct vnode *dp, int islocked, struct nfsexstuff *exp, struct thread *p, | struct vnode *dp, int islocked, struct nfsexstuff *exp, struct thread *p, | ||||
| struct vnode **retdirp) | struct vnode **retdirp) | ||||
| { | { | ||||
| struct componentname *cnp = &ndp->ni_cnd; | struct componentname *cnp = &ndp->ni_cnd; | ||||
| int i; | int i; | ||||
| struct iovec aiov; | struct iovec aiov; | ||||
| struct uio auio; | struct uio auio; | ||||
| int lockleaf = (cnp->cn_flags & LOCKLEAF) != 0, linklen; | int lockleaf = (cnp->cn_flags & LOCKLEAF) != 0, linklen; | ||||
| int error = 0, crossmnt; | int error = 0; | ||||
| char *cp; | char *cp; | ||||
| *retdirp = NULL; | *retdirp = NULL; | ||||
| cnp->cn_nameptr = cnp->cn_pnbuf; | cnp->cn_nameptr = cnp->cn_pnbuf; | ||||
| ndp->ni_lcf = 0; | ndp->ni_lcf = 0; | ||||
| /* | /* | ||||
| * Extract and set starting directory. | * Extract and set starting directory. | ||||
| */ | */ | ||||
| if (dp->v_type != VDIR) { | if (dp->v_type != VDIR) { | ||||
| if (islocked) | if (islocked) | ||||
| vput(dp); | vput(dp); | ||||
| else | else | ||||
| vrele(dp); | vrele(dp); | ||||
| nfsvno_relpathbuf(ndp); | nfsvno_relpathbuf(ndp); | ||||
| error = ENOTDIR; | error = ENOTDIR; | ||||
| goto out1; | goto out1; | ||||
| } | } | ||||
| if (islocked) | if (islocked) | ||||
| NFSVOPUNLOCK(dp, 0); | NFSVOPUNLOCK(dp, 0); | ||||
| VREF(dp); | VREF(dp); | ||||
| *retdirp = dp; | *retdirp = dp; | ||||
| if (NFSVNO_EXRDONLY(exp)) | if (NFSVNO_EXRDONLY(exp)) | ||||
| cnp->cn_flags |= RDONLY; | cnp->cn_flags |= RDONLY; | ||||
| ndp->ni_segflg = UIO_SYSSPACE; | ndp->ni_segflg = UIO_SYSSPACE; | ||||
| crossmnt = 1; | |||||
| if (nd->nd_flag & ND_PUBLOOKUP) { | if (nd->nd_flag & ND_PUBLOOKUP) { | ||||
| ndp->ni_loopcnt = 0; | ndp->ni_loopcnt = 0; | ||||
| if (cnp->cn_pnbuf[0] == '/') { | if (cnp->cn_pnbuf[0] == '/') { | ||||
| vrele(dp); | vrele(dp); | ||||
| /* | /* | ||||
| * Check for degenerate pathnames here, since lookup() | * Check for degenerate pathnames here, since lookup() | ||||
| * panics on them. | * panics on them. | ||||
| Show All 11 Lines | nfsvno_namei(struct nfsrv_descript *nd, struct nameidata *ndp, | ||||
| } else if ((nfsrv_enable_crossmntpt == 0 && NFSVNO_EXPORTED(exp)) || | } else if ((nfsrv_enable_crossmntpt == 0 && NFSVNO_EXPORTED(exp)) || | ||||
| (nd->nd_flag & ND_NFSV4) == 0) { | (nd->nd_flag & ND_NFSV4) == 0) { | ||||
| /* | /* | ||||
| * Only cross mount points for NFSv4 when doing a | * Only cross mount points for NFSv4 when doing a | ||||
| * mount while traversing the file system above | * mount while traversing the file system above | ||||
| * the mount point, unless nfsrv_enable_crossmntpt is set. | * the mount point, unless nfsrv_enable_crossmntpt is set. | ||||
| */ | */ | ||||
| cnp->cn_flags |= NOCROSSMOUNT; | cnp->cn_flags |= NOCROSSMOUNT; | ||||
| crossmnt = 0; | |||||
| } | } | ||||
| /* | /* | ||||
| * Initialize for scan, set ni_startdir and bump ref on dp again | * Initialize for scan, set ni_startdir and bump ref on dp again | ||||
| * because lookup() will dereference ni_startdir. | * because lookup() will dereference ni_startdir. | ||||
| */ | */ | ||||
| cnp->cn_thread = p; | cnp->cn_thread = p; | ||||
| ▲ Show 20 Lines • Show All 3,032 Lines • Show Last 20 Lines | |||||