bsd/nfs/nfs_vnops.c

685 	struct nfs_open_file *nofp = NULL;
771 	error = nfs_open_file_find(np, noop, &nofp, accessMode, denyMode, 1);
772 	if (!error && (nofp->nof_flags & NFS_OPEN_FILE_LOST)) {
773 		NP(np, "nfs_vnop_open: LOST %d", kauth_cred_getuid(nofp->nof_owner->noo_cred));
776 	if (!error && (nofp->nof_flags & NFS_OPEN_FILE_REOPEN)) {
778 		error = nfs4_reopen(nofp, vfs_context_thread(ctx));
779 		nofp = NULL;
784 		error = nfs_open_file_set_busy(nofp, vfs_context_thread(ctx));
786 		nofp = NULL;
794 		nfs_open_file_add_open(nofp, accessMode, denyMode, 0);
802 	if ((nofp->nof_flags & NFS_OPEN_FILE_CREATE) &&
803 	    (nofp->nof_creator == current_thread()) &&
806 		nofp->nof_flags &= ~NFS_OPEN_FILE_CREATE;
807 		nofp->nof_creator = NULL;
810 			error = nfs4_open(np, nofp, accessMode, denyMode, ctx);
811 		if ((error == EACCES) && (nofp->nof_flags & NFS_OPEN_FILE_CREATE) &&
812 		    (nofp->nof_creator == current_thread())) {
823 				NP(np, "nfs_vnop_open: deny mode foregone on create, %d", kauth_cred_getuid(nofp->nof_owner->noo_cred));
824 			nofp->nof_creator = NULL;
835 		if ((nofp->nof_flags & NFS_OPEN_FILE_CREATE) &&
836 		    (nofp->nof_creator == current_thread())) {
837 			error = nfs_close(np, nofp, NFS_OPEN_SHARE_ACCESS_BOTH, NFS_OPEN_SHARE_DENY_NONE, ctx);
839 				NP(np, "nfs_vnop_open: create close error %d, %d", error, kauth_cred_getuid(nofp->nof_owner->noo_cred));
842 				nofp->nof_flags &= ~NFS_OPEN_FILE_CREATE;
848 	if (nofp)
849 		nfs_open_file_clear_busy(nofp);
851 		nofp = NULL;
875 	struct nfs_open_file *nofp;
877 	TAILQ_FOREACH(nofp,  &np->n_opens, nof_link) {
878 		writers += nofp->nof_w + nofp->nof_rw + nofp->nof_w_dw + nofp->nof_rw_dw +
879 			nofp->nof_w_drw + nofp->nof_rw_drw + nofp->nof_d_w_dw +
880 			nofp->nof_d_rw_dw + nofp->nof_d_w_drw + nofp->nof_d_rw_drw +
881 			nofp->nof_d_w + nofp->nof_d_rw;
928 	struct nfs_open_file *nofp = NULL;
998 		if (nofp->nof_deny & NFS_OPEN_SHARE_DENY_READ)
1000 		else if (nofp->nof_deny & NFS_OPEN_SHARE_DENY_WRITE)
1062 	error = nfs_open_file_find(np, noop, &nofp, 0, 0, 0);
1063 	if (!error && (nofp->nof_flags & NFS_OPEN_FILE_REOPEN)) {
1065 		error = nfs4_reopen(nofp, NULL);
1066 		nofp = NULL;
1075 	error = nfs_open_file_set_busy(nofp, NULL);
1077 		nofp = NULL;
1081 	error = nfs_close(np, nofp, accessMode, denyMode, ctx);
1086 	if (nofp)
1087 		nfs_open_file_clear_busy(nofp);
1089 		nofp = NULL;
1110 	struct nfs_open_file *nofp,
1120 	if (((accessMode & nofp->nof_access) != accessMode) || ((denyMode & nofp->nof_deny) != denyMode))
1122 			accessMode, denyMode, nofp->nof_access, nofp->nof_deny,
1123 			kauth_cred_getuid(nofp->nof_owner->noo_cred));
1131 		    (nofp->nof_w == 0) && (nofp->nof_d_w == 0) &&
1132 		    (nofp->nof_rw || nofp->nof_d_rw))
1136 		    (nofp->nof_w_dw == 0) && (nofp->nof_d_w_dw == 0) &&
1137 		    (nofp->nof_rw_dw || nofp->nof_d_rw_dw))
1141 		    (nofp->nof_w_drw == 0) && (nofp->nof_d_w_drw == 0) &&
1142 		    (nofp->nof_rw_drw || nofp->nof_d_rw_drw))
1146 	nfs_open_file_remove_open_find(nofp, accessMode, denyMode, &newAccessMode, &newDenyMode, &delegated);
1147 	if ((newAccessMode != nofp->nof_access) || (newDenyMode != nofp->nof_deny))
1155 	if ((newAccessMode == 0) || (nofp->nof_opencnt == 1)) {
1162 		if (!delegated && !(nofp->nof_flags & NFS_OPEN_FILE_LOST))
1163 			error = nfs4_close_rpc(np, nofp, vfs_context_thread(ctx), vfs_context_ucred(ctx), 0);
1175 			error = nfs4_close_rpc(np, nofp, vfs_context_thread(ctx), vfs_context_ucred(ctx), 0);
1182 		if (!delegated && !(nofp->nof_flags & NFS_OPEN_FILE_LOST)) {
1188 			if (nofp->nof_d_rw_drw || nofp->nof_d_w_drw || nofp->nof_d_r_drw ||
1189 			    nofp->nof_d_rw_dw || nofp->nof_d_w_dw || nofp->nof_d_r_dw ||
1190 			    nofp->nof_d_rw || nofp->nof_d_w || nofp->nof_d_r)
1191 				nfs4_claim_delegated_state_for_open_file(nofp, 0);
1193 			nfs_open_file_remove_open(nofp, accessMode, denyMode);
1194 			error = nfs4_open_downgrade_rpc(np, nofp, ctx);
1196 				nfs_open_file_add_open(nofp, accessMode, denyMode, delegated);
1201 		NP(np, "nfs_close: error %d, %d", error, kauth_cred_getuid(nofp->nof_owner->noo_cred));
1207 		nfs_open_file_remove_open(nofp, accessMode, denyMode);
1210 		lck_mtx_lock(&nofp->nof_lock);
1211 		if (nofp->nof_r || nofp->nof_d_r || nofp->nof_w || nofp->nof_d_w || nofp->nof_d_rw ||
1212 		    (nofp->nof_rw && !((nofp->nof_flags & NFS_OPEN_FILE_CREATE) && !nofp->nof_creator && (nofp->nof_rw == 1))) ||
1213 		    nofp->nof_r_dw || nofp->nof_d_r_dw || nofp->nof_w_dw || nofp->nof_d_w_dw ||
1214 		    nofp->nof_rw_dw || nofp->nof_d_rw_dw || nofp->nof_r_drw || nofp->nof_d_r_drw ||
1215 		    nofp->nof_w_drw || nofp->nof_d_w_drw || nofp->nof_rw_drw || nofp->nof_d_rw_drw)
1217 				nofp->nof_r, nofp->nof_d_r, nofp->nof_w, nofp->nof_d_w,
1218 				nofp->nof_rw, nofp->nof_d_rw, nofp->nof_r_dw, nofp->nof_d_r_dw,
1219 				nofp->nof_w_dw, nofp->nof_d_w_dw, nofp->nof_rw_dw, nofp->nof_d_rw_dw,
1220 				nofp->nof_r_drw, nofp->nof_d_r_drw, nofp->nof_w_drw, nofp->nof_d_w_drw,
1221 				nofp->nof_rw_drw, nofp->nof_d_rw_drw, nofp->nof_flags,
1222 				kauth_cred_getuid(nofp->nof_owner->noo_cred));
1224 		nofp->nof_access = nofp->nof_deny = 0;
1225 		nofp->nof_mmap_access = nofp->nof_mmap_deny = 0;
1226 		nofp->nof_r = nofp->nof_d_r = 0;
1227 		nofp->nof_w = nofp->nof_d_w = 0;
1228 		nofp->nof_rw = nofp->nof_d_rw = 0;
1229 		nofp->nof_r_dw = nofp->nof_d_r_dw = 0;
1230 		nofp->nof_w_dw = nofp->nof_d_w_dw = 0;
1231 		nofp->nof_rw_dw = nofp->nof_d_rw_dw = 0;
1232 		nofp->nof_r_drw = nofp->nof_d_r_drw = 0;
1233 		nofp->nof_w_drw = nofp->nof_d_w_drw = 0;
1234 		nofp->nof_rw_drw = nofp->nof_d_rw_drw = 0;
1235 		nofp->nof_flags &= ~NFS_OPEN_FILE_CREATE;
1236 		lck_mtx_unlock(&nofp->nof_lock);
1239 	if (nofp->nof_flags & NFS_OPEN_FILE_LOST) {
1241 		NP(np, "nfs_close: LOST%s, %d", !nofp->nof_opencnt ? " (last)" : "",
1242 			kauth_cred_getuid(nofp->nof_owner->noo_cred));
1539 	struct nfs_open_file *nofp = NULL;
1607 				error = nfs_open_file_find(np, noop, &nofp, 0, 0, 1);
1608 				if (!error && (nofp->nof_flags & NFS_OPEN_FILE_LOST))
1610 				if (!error && (nofp->nof_flags & NFS_OPEN_FILE_REOPEN)) {
1612 					error = nfs4_reopen(nofp, vfs_context_thread(ctx));
1613 					nofp = NULL;
1618 					error = nfs_open_file_set_busy(nofp, vfs_context_thread(ctx));
1623 				if (!(nofp->nof_access & NFS_OPEN_SHARE_ACCESS_WRITE)) {
1625 					error = nfs4_open(np, nofp, NFS_OPEN_SHARE_ACCESS_WRITE, NFS_OPEN_SHARE_DENY_NONE, ctx);
1627 						nofp->nof_flags |= NFS_OPEN_FILE_SETATTR;
1629 						nfs_open_file_clear_busy(nofp);
1630 						nofp = NULL;
1811 			if (nofp) {
1814 				    (nofp->nof_flags & NFS_OPEN_FILE_SETATTR)) {
1815 					int err = nfs_close(np, nofp, NFS_OPEN_SHARE_ACCESS_WRITE, NFS_OPEN_SHARE_DENY_NONE, ctx);
1818 					nofp->nof_flags &= ~NFS_OPEN_FILE_SETATTR;
1820 				nfs_open_file_clear_busy(nofp);
1821 				nofp = NULL;