1 /* 2 * CDDL HEADER START 3 * 4 * The contents of this file are subject to the terms of the 5 * Common Development and Distribution License (the "License"). 6 * You may not use this file except in compliance with the License. 7 * 8 * You can obtain a copy of the license at usr/src/OPENSOLARIS.LICENSE 9 * or http://www.opensolaris.org/os/licensing. 10 * See the License for the specific language governing permissions 11 * and limitations under the License. 12 * 13 * When distributing Covered Code, include this CDDL HEADER in each 14 * file and include the License file at usr/src/OPENSOLARIS.LICENSE. 15 * If applicable, add the following below this CDDL HEADER, with the 16 * fields enclosed by brackets "[]" replaced with your own identifying 17 * information: Portions Copyright [yyyy] [name of copyright owner] 18 * 19 * CDDL HEADER END 20 */ 21 /* 22 * Copyright 2007 Sun Microsystems, Inc. All rights reserved. 23 * Use is subject to license terms. 24 */ 25 26 #pragma ident "%Z%%M% %I% %E% SMI" 27 28 /* 29 * Utility routines 30 */ 31 32 #include <stdio.h> 33 #include <stdlib.h> 34 #include <errno.h> 35 #include <libintl.h> 36 #include "idmap_impl.h" 37 38 #define _UDT_SIZE_INCR 1 39 40 #define _GET_IDS_SIZE_INCR 1 41 42 static struct timeval TIMEOUT = { 25, 0 }; 43 44 idmap_retcode 45 _udt_extend_batch(idmap_udt_handle_t *udthandle) { 46 idmap_update_op *tmplist; 47 size_t nsize; 48 49 if (udthandle->next >= udthandle->batch.idmap_update_batch_len) { 50 nsize = (udthandle->batch.idmap_update_batch_len + 51 _UDT_SIZE_INCR) * sizeof (*tmplist); 52 tmplist = realloc( 53 udthandle->batch.idmap_update_batch_val, nsize); 54 if (tmplist == NULL) 55 return (IDMAP_ERR_MEMORY); 56 (void) memset((uchar_t *)tmplist + 57 (udthandle->batch.idmap_update_batch_len * 58 sizeof (*tmplist)), 0, 59 _UDT_SIZE_INCR * sizeof (*tmplist)); 60 udthandle->batch.idmap_update_batch_val = tmplist; 61 udthandle->batch.idmap_update_batch_len += _UDT_SIZE_INCR; 62 } 63 udthandle->batch.idmap_update_batch_val[udthandle->next].opnum = 64 OP_NONE; 65 return (IDMAP_SUCCESS); 66 } 67 68 idmap_retcode 69 _get_ids_extend_batch(idmap_get_handle_t *gh) { 70 idmap_mapping *t1; 71 idmap_get_res_t *t2; 72 size_t nsize, len; 73 74 len = gh->batch.idmap_mapping_batch_len; 75 if (gh->next >= len) { 76 /* extend the request array */ 77 nsize = (len + _GET_IDS_SIZE_INCR) * sizeof (*t1); 78 t1 = realloc(gh->batch.idmap_mapping_batch_val, nsize); 79 if (t1 == NULL) 80 return (IDMAP_ERR_MEMORY); 81 (void) memset((uchar_t *)t1 + (len * sizeof (*t1)), 0, 82 _GET_IDS_SIZE_INCR * sizeof (*t1)); 83 gh->batch.idmap_mapping_batch_val = t1; 84 85 /* extend the return list */ 86 nsize = (len + _GET_IDS_SIZE_INCR) * sizeof (*t2); 87 t2 = realloc(gh->retlist, nsize); 88 if (t2 == NULL) 89 return (IDMAP_ERR_MEMORY); 90 (void) memset((uchar_t *)t2 + (len * sizeof (*t2)), 0, 91 _GET_IDS_SIZE_INCR * sizeof (*t2)); 92 gh->retlist = t2; 93 94 gh->batch.idmap_mapping_batch_len += _GET_IDS_SIZE_INCR; 95 } 96 return (IDMAP_SUCCESS); 97 } 98 99 idmap_stat 100 _iter_get_next_list(int type, idmap_iter_t *iter, 101 void *arg, uchar_t **list, size_t valsize, 102 xdrproc_t xdr_arg_proc, xdrproc_t xdr_res_proc) { 103 104 CLIENT *clnt; 105 enum clnt_stat clntstat; 106 107 iter->next = 0; 108 iter->retlist = NULL; 109 _IDMAP_GET_CLIENT_HANDLE(iter->ih, clnt); 110 111 /* init the result */ 112 if (*list) { 113 xdr_free(xdr_res_proc, (caddr_t)*list); 114 } else { 115 if ((*list = malloc(valsize)) == NULL) { 116 errno = ENOMEM; 117 return (IDMAP_ERR_MEMORY); 118 } 119 } 120 (void) memset(*list, 0, valsize); 121 122 clntstat = clnt_call(clnt, type, 123 xdr_arg_proc, (caddr_t)arg, 124 xdr_res_proc, (caddr_t)*list, 125 TIMEOUT); 126 if (clntstat != RPC_SUCCESS) { 127 free(*list); 128 return (_idmap_rpc2stat(clnt)); 129 } 130 iter->retlist = *list; 131 return (IDMAP_SUCCESS); 132 } 133 134 idmap_stat 135 _idmap_rpc2stat(CLIENT *clnt) { 136 /* 137 * We only deal with door_call(3C) errors here. We look at 138 * r_err.re_errno instead of r_err.re_status because we need 139 * to differentiate between RPC failures caused by bad door fd 140 * and others. 141 */ 142 struct rpc_err r_err; 143 if (clnt) { 144 clnt_geterr(clnt, &r_err); 145 errno = r_err.re_errno; 146 switch (r_err.re_errno) { 147 case ENOMEM: 148 return (IDMAP_ERR_MEMORY); 149 case EBADF: 150 return (IDMAP_ERR_RPC_HANDLE); 151 default: 152 return (IDMAP_ERR_RPC); 153 } 154 } 155 156 /* null handle */ 157 return (IDMAP_ERR_RPC_HANDLE); 158 } 159