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 2008 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 { 47 idmap_update_op *tmplist; 48 size_t nsize; 49 50 if (udthandle->next >= udthandle->batch.idmap_update_batch_len) { 51 nsize = (udthandle->batch.idmap_update_batch_len + 52 _UDT_SIZE_INCR) * sizeof (*tmplist); 53 tmplist = realloc( 54 udthandle->batch.idmap_update_batch_val, nsize); 55 if (tmplist == NULL) 56 return (IDMAP_ERR_MEMORY); 57 (void) memset((uchar_t *)tmplist + 58 (udthandle->batch.idmap_update_batch_len * 59 sizeof (*tmplist)), 0, 60 _UDT_SIZE_INCR * sizeof (*tmplist)); 61 udthandle->batch.idmap_update_batch_val = tmplist; 62 udthandle->batch.idmap_update_batch_len += _UDT_SIZE_INCR; 63 } 64 udthandle->batch.idmap_update_batch_val[udthandle->next].opnum = 65 OP_NONE; 66 return (IDMAP_SUCCESS); 67 } 68 69 idmap_retcode 70 _get_ids_extend_batch(idmap_get_handle_t *gh) 71 { 72 idmap_mapping *t1; 73 idmap_get_res_t *t2; 74 size_t nsize, len; 75 76 len = gh->batch.idmap_mapping_batch_len; 77 if (gh->next >= len) { 78 /* extend the request array */ 79 nsize = (len + _GET_IDS_SIZE_INCR) * sizeof (*t1); 80 t1 = realloc(gh->batch.idmap_mapping_batch_val, nsize); 81 if (t1 == NULL) 82 return (IDMAP_ERR_MEMORY); 83 (void) memset((uchar_t *)t1 + (len * sizeof (*t1)), 0, 84 _GET_IDS_SIZE_INCR * sizeof (*t1)); 85 gh->batch.idmap_mapping_batch_val = t1; 86 87 /* extend the return list */ 88 nsize = (len + _GET_IDS_SIZE_INCR) * sizeof (*t2); 89 t2 = realloc(gh->retlist, nsize); 90 if (t2 == NULL) 91 return (IDMAP_ERR_MEMORY); 92 (void) memset((uchar_t *)t2 + (len * sizeof (*t2)), 0, 93 _GET_IDS_SIZE_INCR * sizeof (*t2)); 94 gh->retlist = t2; 95 96 gh->batch.idmap_mapping_batch_len += _GET_IDS_SIZE_INCR; 97 } 98 return (IDMAP_SUCCESS); 99 } 100 101 idmap_stat 102 _iter_get_next_list(int type, idmap_iter_t *iter, 103 void *arg, uchar_t **list, size_t valsize, 104 xdrproc_t xdr_arg_proc, xdrproc_t xdr_res_proc) 105 { 106 107 CLIENT *clnt; 108 enum clnt_stat clntstat; 109 110 iter->next = 0; 111 iter->retlist = NULL; 112 _IDMAP_GET_CLIENT_HANDLE(iter->ih, clnt); 113 114 /* init the result */ 115 if (*list) { 116 xdr_free(xdr_res_proc, (caddr_t)*list); 117 } else { 118 if ((*list = malloc(valsize)) == NULL) { 119 errno = ENOMEM; 120 return (IDMAP_ERR_MEMORY); 121 } 122 } 123 (void) memset(*list, 0, valsize); 124 125 clntstat = clnt_call(clnt, type, 126 xdr_arg_proc, (caddr_t)arg, 127 xdr_res_proc, (caddr_t)*list, 128 TIMEOUT); 129 if (clntstat != RPC_SUCCESS) { 130 free(*list); 131 return (_idmap_rpc2stat(clnt)); 132 } 133 iter->retlist = *list; 134 return (IDMAP_SUCCESS); 135 } 136 137 idmap_stat 138 _idmap_rpc2stat(CLIENT *clnt) 139 { 140 /* 141 * We only deal with door_call(3C) errors here. We look at 142 * r_err.re_errno instead of r_err.re_status because we need 143 * to differentiate between RPC failures caused by bad door fd 144 * and others. 145 */ 146 struct rpc_err r_err; 147 if (clnt) { 148 clnt_geterr(clnt, &r_err); 149 errno = r_err.re_errno; 150 switch (r_err.re_errno) { 151 case ENOMEM: 152 return (IDMAP_ERR_MEMORY); 153 case EBADF: 154 return (IDMAP_ERR_RPC_HANDLE); 155 default: 156 return (IDMAP_ERR_RPC); 157 } 158 } 159 160 /* null handle */ 161 return (IDMAP_ERR_RPC_HANDLE); 162 } 163