| 3747 | } |
| 3748 | |
| 3749 | int |
| 3750 | kern_mkdirat(struct thread *td, int fd, const char *path, enum uio_seg segflg, |
| 3751 | int mode) |
| 3752 | { |
| 3753 | struct mount *mp; |
| 3754 | struct vattr vattr; |
| 3755 | struct nameidata nd; |
| 3756 | int error; |
| 3757 | |
| 3758 | AUDIT_ARG_MODE(mode); |
| 3759 | restart: |
| 3760 | bwillwrite(); |
| 3761 | NDINIT_ATRIGHTS(&nd, CREATE, LOCKPARENT | SAVENAME | AUDITVNODE1 | |
| 3762 | NC_NOMAKEENTRY | NC_KEEPPOSENTRY | FAILIFEXISTS | WILLBEDIR, |
| 3763 | segflg, path, fd, &cap_mkdirat_rights, td); |
| 3764 | if ((error = namei(&nd)) != 0) |
| 3765 | return (error); |
| 3766 | if (vn_start_write(nd.ni_dvp, &mp, V_NOWAIT) != 0) { |
| 3767 | NDFREE(&nd, NDF_ONLY_PNBUF); |
| 3768 | vput(nd.ni_dvp); |
| 3769 | if ((error = vn_start_write(NULL, &mp, V_XSLEEP | PCATCH)) != 0) |
| 3770 | return (error); |
| 3771 | goto restart; |
| 3772 | } |
| 3773 | VATTR_NULL(&vattr); |
| 3774 | vattr.va_type = VDIR; |
| 3775 | vattr.va_mode = (mode & ACCESSPERMS) &~ td->td_proc->p_pd->pd_cmask; |
| 3776 | #ifdef MAC |
| 3777 | error = mac_vnode_check_create(td->td_ucred, nd.ni_dvp, &nd.ni_cnd, |
| 3778 | &vattr); |
| 3779 | if (error != 0) |
| 3780 | goto out; |
| 3781 | #endif |
| 3782 | error = VOP_MKDIR(nd.ni_dvp, &nd.ni_vp, &nd.ni_cnd, &vattr); |
| 3783 | #ifdef MAC |
| 3784 | out: |
| 3785 | #endif |
| 3786 | NDFREE(&nd, NDF_ONLY_PNBUF); |
| 3787 | VOP_VPUT_PAIR(nd.ni_dvp, error == 0 ? &nd.ni_vp : NULL, true); |
| 3788 | vn_finished_write(mp); |
| 3789 | if (error == ERELOOKUP) |
| 3790 | goto restart; |
| 3791 | return (error); |
| 3792 | } |
| 3793 | |
| 3794 | /* |
| 3795 | * Remove a directory file. |
no test coverage detected