bsd/nfs/nfs_serv.c

596 	struct nameidata ni;
618 	ni.ni_cnd.cn_nameiop = LOOKUP;
620 	ni.ni_op = OP_LOOKUP;
622 	ni.ni_cnd.cn_flags = LOCKLEAF;
623 	error = nfsm_chain_get_path_namei(nmreq, len, &ni);
624 	isdotdot = ((len == 2) && (ni.ni_cnd.cn_pnbuf[0] == '.') && (ni.ni_cnd.cn_pnbuf[1] == '.'));
626 		error = nfsrv_namei(nd, ctx, &ni, &dnfh, &dirp, &nx, &nxo);
645 	nameidone(&ni);
647 	vp = ni.ni_vp;
1814 	struct nameidata ni;
1833 	ni.ni_cnd.cn_nameiop = 0;
1843 	ni.ni_cnd.cn_nameiop = CREATE;
1845 	ni.ni_op = OP_LINK;
1847 	ni.ni_cnd.cn_flags = LOCKPARENT | LOCKLEAF;
1848 	error = nfsm_chain_get_path_namei(nmreq, len, &ni);
1850 		error = nfsrv_namei(nd, ctx, &ni, &nfh, &dirp, &nx, &nxo);
1870 		ni.ni_cnd.cn_nameiop = 0;
1874 	dvp = ni.ni_dvp;
1875 	vp = ni.ni_vp;
1960 				error = VNOP_CREATE(dvp, &vp, &ni.ni_cnd, vap, ctx);
2003 			error = VNOP_MKNOD(dvp, &vp, &ni.ni_cnd, vap, ctx);
2015 			ni.ni_cnd.cn_nameiop = LOOKUP;
2017 			ni.ni_op = OP_LOOKUP;
2019 			ni.ni_cnd.cn_flags &= ~LOCKPARENT;
2020 			ni.ni_cnd.cn_context = ctx;
2021 			ni.ni_startdir = dvp;
2022 			ni.ni_usedvp   = dvp;
2023 			cnflags = ni.ni_cnd.cn_flags; /* store in case we have to restore */
2024 			while ((error = lookup(&ni)) == ERECYCLE) {
2025 				ni.ni_cnd.cn_flags = cnflags;
2026 				ni.ni_cnd.cn_nameptr = ni.ni_cnd.cn_pnbuf;
2027 				ni.ni_usedvp = ni.ni_dvp = ni.ni_startdir = dvp;
2030 				if (ni.ni_cnd.cn_flags & ISSYMLINK)
2032 				vp = ni.ni_vp;
2042 		nameidone(&ni);
2043 		ni.ni_cnd.cn_nameiop = 0;
2051 	        nameidone(&ni);
2052 		ni.ni_cnd.cn_nameiop = 0;
2111 	if (ni.ni_cnd.cn_nameiop) {
2116 		nameidone(&ni);
2143 	struct nameidata ni;
2162 	ni.ni_cnd.cn_nameiop = 0;
2171 	ni.ni_cnd.cn_nameiop = CREATE;
2173 	ni.ni_op = OP_LINK;
2175 	ni.ni_cnd.cn_flags = LOCKPARENT | LOCKLEAF;
2176 	error = nfsm_chain_get_path_namei(nmreq, len, &ni);
2178 		error = nfsrv_namei(nd, ctx, &ni, &nfh, &dirp, &nx, &nxo);
2192 		ni.ni_cnd.cn_nameiop = 0;
2196 	dvp = ni.ni_dvp;
2197 	vp = ni.ni_vp;
2258 		error = VNOP_CREATE(dvp, &vp, &ni.ni_cnd, vap, ctx);
2269 		if ((error = VNOP_MKNOD(dvp, &vp, &ni.ni_cnd, vap, ctx)))
2276 		ni.ni_cnd.cn_nameiop = LOOKUP;
2278 		ni.ni_op = OP_LOOKUP;
2280 		ni.ni_cnd.cn_flags &= ~LOCKPARENT;
2281 		ni.ni_cnd.cn_context = vfs_context_current();
2282 		ni.ni_startdir = dvp;
2283 		ni.ni_usedvp   = dvp;
2284 		cnflags = ni.ni_cnd.cn_flags; /* store in case we have to restore */
2285 		while ((error = lookup(&ni)) == ERECYCLE) {
2286 			ni.ni_cnd.cn_flags = cnflags;
2287 			ni.ni_cnd.cn_nameptr = ni.ni_cnd.cn_pnbuf;
2288 			ni.ni_usedvp = ni.ni_dvp = ni.ni_startdir = dvp;
2291 		        vp = ni.ni_vp;
2292 			if (ni.ni_cnd.cn_flags & ISSYMLINK)
2304 	nameidone(&ni);
2305 	ni.ni_cnd.cn_nameiop = 0;
2343 	if (ni.ni_cnd.cn_nameiop) {
2348 		nameidone(&ni);
2377 	struct nameidata ni;
2400 	ni.ni_cnd.cn_nameiop = DELETE;
2402 	ni.ni_op = OP_UNLINK;
2404 	ni.ni_cnd.cn_flags = LOCKPARENT | LOCKLEAF;
2405 	error = nfsm_chain_get_path_namei(nmreq, len, &ni);
2407 		error = nfsrv_namei(nd, ctx, &ni, &nfh, &dirp, &nx, &nxo);
2427 		dvp = ni.ni_dvp;
2428 		vp = ni.ni_vp;
2456 		    	error = VNOP_REMOVE(dvp, vp, &ni.ni_cnd, 0, ctx);
2474 		nameidone(&ni);
3125 	struct nameidata ni;
3168 	ni.ni_cnd.cn_nameiop = CREATE;
3170 	ni.ni_op = OP_LINK;
3172 	ni.ni_cnd.cn_flags = LOCKPARENT;
3173 	error = nfsm_chain_get_path_namei(nmreq, len, &ni);
3175 		error = nfsrv_namei(nd, ctx, &ni, &dnfh, &dirp, &nx, &nxo);
3187 	dvp = ni.ni_dvp;
3188 	xp = ni.ni_vp;
3198 		error = VNOP_LINK(vp, dvp, &ni.ni_cnd, ctx);
3209 			plen = safe_getpath(dvp, ni.ni_cnd.cn_nameptr, target_path, MAXPATHLEN, &truncated);
3230 	nameidone(&ni);
3284 	struct nameidata ni;
3306 	ni.ni_cnd.cn_nameiop = 0;
3314 	ni.ni_cnd.cn_nameiop = CREATE;
3316 	ni.ni_op = OP_LINK;
3318 	ni.ni_cnd.cn_flags = LOCKPARENT;
3319 	error = nfsm_chain_get_path_namei(nmreq, len, &ni);
3321 		error = nfsrv_namei(nd, ctx, &ni, &nfh, &dirp, &nx, &nxo);
3340 		ni.ni_cnd.cn_nameiop = 0;
3343 	dvp = ni.ni_dvp;
3344 	vp = ni.ni_vp;
3392 		error = VNOP_SYMLINK(dvp, &vp, &ni.ni_cnd, vap, linkdata, ctx);
3396 			ni.ni_cnd.cn_nameiop = LOOKUP;
3398 			ni.ni_op = OP_LOOKUP;
3400 			ni.ni_cnd.cn_flags &= ~(LOCKPARENT | FOLLOW);
3401 			ni.ni_cnd.cn_flags |= (NOFOLLOW | LOCKLEAF);
3402 			ni.ni_cnd.cn_context = ctx;
3403 			ni.ni_startdir = dvp;
3404 			ni.ni_usedvp   = dvp;
3405 			cnflags = ni.ni_cnd.cn_flags; /* store in case we have to restore */
3406 			while ((error = lookup(&ni)) == ERECYCLE) {
3407 				ni.ni_cnd.cn_flags = cnflags;
3408 				ni.ni_cnd.cn_nameptr = ni.ni_cnd.cn_pnbuf;
3409 				ni.ni_usedvp = ni.ni_dvp = ni.ni_startdir = dvp;
3412 			        vp = ni.ni_vp;
3435 	nameidone(&ni);
3436 	ni.ni_cnd.cn_nameiop = 0;
3470 	if (ni.ni_cnd.cn_nameiop) {
3475 		nameidone(&ni);
3505 	struct nameidata ni;
3523 	ni.ni_cnd.cn_nameiop = 0;
3531 	ni.ni_cnd.cn_nameiop = CREATE;
3533 	ni.ni_op = OP_LINK;
3535 	ni.ni_cnd.cn_flags = LOCKPARENT;
3536 	error = nfsm_chain_get_path_namei(nmreq, len, &ni);
3538 		error = nfsrv_namei(nd, ctx, &ni, &nfh, &dirp, &nx, &nxo);
3557 		ni.ni_cnd.cn_nameiop = 0;
3560 	dvp = ni.ni_dvp;
3561 	vp = ni.ni_vp;
3573 	        nameidone(&ni);
3622 		error = VNOP_MKDIR(dvp, &vp, &ni.ni_cnd, vap, ctx);
3654 	nameidone(&ni);
3657 	ni.ni_cnd.cn_nameiop = 0;
3688 	if (ni.ni_cnd.cn_nameiop) {
3693 		nameidone(&ni);
3725 	struct nameidata ni;
3741 	ni.ni_cnd.cn_nameiop = DELETE;
3743 	ni.ni_op = OP_UNLINK;
3745 	ni.ni_cnd.cn_flags = LOCKPARENT | LOCKLEAF;
3746 	error = nfsm_chain_get_path_namei(nmreq, len, &ni);
3748 		error = nfsrv_namei(nd, ctx, &ni, &nfh, &dirp, &nx, &nxo);
3768 	dvp = ni.ni_dvp;
3769 	vp = ni.ni_vp;
3806 		error = VNOP_RMDIR(dvp, vp, &ni.ni_cnd, ctx);
3824 	nameidone(&ni);