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 2006 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 #include <stdlib.h> 29 #include <locale.h> 30 #include <string.h> 31 #include "nscd_config.h" 32 #include "nscd_log.h" 33 #include "nscd_switch.h" 34 35 /* 36 * Configuration data for the nscd switch functions. 37 */ 38 nscd_cfg_global_switch_t nscd_switch_cfg_g; 39 nscd_cfg_switch_t *nscd_switch_cfg; 40 41 /* 42 * statistics of the nscd switch functions. 43 */ 44 nscd_cfg_stat_global_switch_t nscd_switch_stats_g; 45 nscd_cfg_stat_switch_t *nscd_switch_stats; 46 47 /* 48 * cookie is set up by the verify function for passing to 49 * the notify function 50 */ 51 typedef struct { 52 struct __nsw_switchconfig_v1 *cfg; 53 char *cfgstr; 54 } nsw_cfg_cookie_t; 55 56 nscd_rc_t 57 _nscd_alloc_switch_cfg() 58 { 59 nscd_switch_cfg = calloc(NSCD_NUM_DB, sizeof (nscd_cfg_switch_t)); 60 if (nscd_switch_cfg == NULL) 61 return (NSCD_NO_MEMORY); 62 63 return (NSCD_SUCCESS); 64 } 65 66 nscd_rc_t 67 _nscd_alloc_switch_stats() 68 { 69 70 nscd_switch_stats = calloc(NSCD_NUM_DB, 71 sizeof (nscd_cfg_stat_switch_t)); 72 if (nscd_switch_stats == NULL) 73 return (NSCD_NO_MEMORY); 74 75 return (NSCD_SUCCESS); 76 } 77 78 /* ARGSUSED */ 79 nscd_rc_t 80 _nscd_cfg_switch_notify( 81 void *data, 82 struct nscd_cfg_param_desc *pdesc, 83 nscd_cfg_id_t *nswdb, 84 nscd_cfg_flag_t dflag, 85 nscd_cfg_error_t **errorp, 86 void *cookie) 87 { 88 89 void *dp; 90 nscd_rc_t rc; 91 nsw_cfg_cookie_t *ck = (nsw_cfg_cookie_t *)cookie; 92 93 if (_nscd_cfg_flag_is_set(dflag, NSCD_CFG_DFLAG_INIT) || 94 _nscd_cfg_flag_is_set(dflag, NSCD_CFG_DFLAG_GROUP)) { 95 /* 96 * group data is received, copy in the 97 * entire strcture 98 */ 99 if (_nscd_cfg_flag_is_set(pdesc->pflag, 100 NSCD_CFG_PFLAG_GLOBAL)) { 101 nscd_switch_cfg_g = *(nscd_cfg_global_switch_t *)data; 102 } else { 103 nscd_switch_cfg[nswdb->index] = 104 *(nscd_cfg_switch_t *)data; 105 106 } 107 } else { 108 /* 109 * individual paramater is received: copy in the 110 * parameter value except for nsw-config-string. 111 */ 112 if (_nscd_cfg_flag_is_set(pdesc->pflag, 113 NSCD_CFG_PFLAG_GLOBAL)) { 114 dp = (char *)&nscd_switch_cfg_g + pdesc->p_offset; 115 (void) memcpy(dp, data, pdesc->p_size); 116 } else { 117 dp = (char *)&nscd_switch_cfg[nswdb->index] + 118 pdesc->p_offset; 119 if (pdesc->p_offset != 120 offsetof(nscd_cfg_switch_t, nsw_config_string)) 121 (void) memcpy(dp, data, pdesc->p_size); 122 } 123 } 124 125 /* 126 * cookie contains data for the switch policy config 127 */ 128 if (cookie != NULL) { 129 rc = _nscd_create_sw_struct(nswdb->index, nswdb->name, 130 ck->cfgstr, ck->cfg, NULL); 131 if (rc != NSCD_SUCCESS) { 132 (void) __nsw_freeconfig_v1(ck->cfg); 133 free(ck); 134 return (rc); 135 } 136 free(ck); 137 } 138 139 if (_nscd_cfg_flag_is_not_set(dflag, NSCD_CFG_DFLAG_STATIC_DATA)) 140 free(data); 141 142 return (NSCD_SUCCESS); 143 } 144 145 /* ARGSUSED */ 146 nscd_rc_t 147 _nscd_cfg_switch_verify( 148 void *data, 149 struct nscd_cfg_param_desc *pdesc, 150 nscd_cfg_id_t *nswdb, 151 nscd_cfg_flag_t dflag, 152 nscd_cfg_error_t **errorp, 153 void **cookie) 154 { 155 char *me = "_nscd_cfg_switch_verify"; 156 nscd_cfg_switch_t *cfg; 157 char *nswcfgstr; 158 int size; 159 struct __nsw_switchconfig_v1 *switchcfg = NULL; 160 enum __nsw_parse_err err; 161 nsw_cfg_cookie_t *ck; 162 char buf[MAX_NSSWITCH_CONFIG_STRING_SZ]; 163 char msg[NSCD_CFG_MAX_ERR_MSG_LEN]; 164 165 /* 166 * global config data has nothing special to verify 167 */ 168 if (_nscd_cfg_flag_is_set(pdesc->pflag, NSCD_CFG_PFLAG_GLOBAL)) 169 return (NSCD_SUCCESS); 170 171 *cookie = NULL; 172 173 /* 174 * switch policy string is the one to parse and verify 175 */ 176 177 if (_nscd_cfg_flag_is_set(dflag, NSCD_CFG_DFLAG_INIT) || 178 _nscd_cfg_flag_is_set(dflag, NSCD_CFG_DFLAG_GROUP)) { 179 180 /* get it from the group data */ 181 cfg = (nscd_cfg_switch_t *)data; 182 nswcfgstr = cfg->nsw_config_string; 183 } else { 184 /* not group, and not the switch policy string, return */ 185 if (pdesc->p_offset != offsetof(nscd_cfg_switch_t, 186 nsw_config_string)) 187 return (NSCD_SUCCESS); 188 189 /* the data itself is the string */ 190 nswcfgstr = (char *)data; 191 } 192 193 /* 194 * convert the string into struct __nsw_switchconfig_v1 195 */ 196 size = MAX_NSSWITCH_CONFIG_STRING_SZ; 197 if (strlcpy(buf, nswcfgstr, size) >= size) { 198 199 (void) snprintf(msg, sizeof (msg), 200 gettext("switch policy string too long (\"%s : %s\" > %d)"), 201 nswdb->name, nswcfgstr, size); 202 203 _NSCD_LOG(NSCD_LOG_CONFIG, NSCD_LOG_LEVEL_ERROR) 204 (me, "%s\n", msg); 205 206 if (*errorp) 207 *errorp = _nscd_cfg_make_error( 208 NSCD_CFG_SYNTAX_ERROR, msg); 209 210 return (NSCD_CFG_SYNTAX_ERROR); 211 } 212 switchcfg = _nsw_getoneconfig_v1(nswdb->name, buf, &err); 213 if (switchcfg == NULL) { 214 215 (void) snprintf(msg, sizeof (msg), 216 gettext("syntax error: switch policy string (%s : %s) rc = %d"), 217 nswdb->name, nswcfgstr, err); 218 219 _NSCD_LOG(NSCD_LOG_CONFIG, NSCD_LOG_LEVEL_ERROR) 220 (me, "%s\n", msg); 221 222 if (*errorp) 223 *errorp = _nscd_cfg_make_error( 224 NSCD_CFG_SYNTAX_ERROR, msg); 225 226 return (NSCD_CFG_SYNTAX_ERROR); 227 } 228 229 /* save the __nsw_switchconfig_v1 for the notify function */ 230 ck = calloc(1, sizeof (nsw_cfg_cookie_t)); 231 if (ck == NULL) { 232 (void) __nsw_freeconfig_v1(switchcfg); 233 return (NSCD_CFG_SYNTAX_ERROR); 234 } 235 ck->cfg = switchcfg; 236 ck->cfgstr = nswcfgstr; 237 *cookie = ck; 238 239 return (NSCD_SUCCESS); 240 } 241 242 /* ARGSUSED */ 243 nscd_rc_t 244 _nscd_cfg_switch_get_stat( 245 void **stat, 246 struct nscd_cfg_stat_desc *sdesc, 247 nscd_cfg_id_t *nswdb, 248 nscd_cfg_flag_t *dflag, 249 void (**free_stat)(void *stat), 250 nscd_cfg_error_t **errorp) 251 { 252 253 if (_nscd_cfg_flag_is_set(sdesc->sflag, NSCD_CFG_SFLAG_GLOBAL)) { 254 *stat = &NSCD_SW_STATS_G; 255 } else 256 *stat = &NSCD_SW_STATS(nswdb->index); 257 258 /* indicate the statistics are static, i.e., do not free */ 259 *dflag = _nscd_cfg_flag_set(*dflag, NSCD_CFG_DFLAG_STATIC_DATA); 260 261 return (NSCD_SUCCESS); 262 } 263