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 /* 29 * Routines to handle getexec* calls in nscd 30 */ 31 32 #include <string.h> 33 #include <exec_attr.h> 34 #include "cache.h" 35 36 static int execattr_compar(const void *, const void *); 37 static uint_t execattr_gethash(nss_XbyY_key_t *, int); 38 static void execattr_getlogstr(char *, char *, size_t, nss_XbyY_args_t *); 39 40 #define nam_db ctx->nsc_db[0] 41 #define id_db ctx->nsc_db[1] 42 #define nam_id_db ctx->nsc_db[2] 43 #define NSC_NAME_EXECATTR_BYNAME "execattr_byname" 44 #define NSC_NAME_EXECATTR_BYID "execattr_byid" 45 #define NSC_NAME_EXECATTR_BYNAMEID "execattr_bynameid" 46 47 void 48 exec_init_ctx(nsc_ctx_t *ctx) { 49 ctx->dbname = NSS_DBNAM_EXECATTR; 50 ctx->file_name = "/etc/security/exec_attr"; 51 ctx->db_count = 3; 52 nam_db = make_cache(nsc_key_other, 53 NSS_DBOP_EXECATTR_BYNAME, 54 NSC_NAME_EXECATTR_BYNAME, 55 execattr_compar, 56 execattr_getlogstr, 57 execattr_gethash, nsc_ht_default, -1); 58 id_db = make_cache(nsc_key_other, 59 NSS_DBOP_EXECATTR_BYID, 60 NSC_NAME_EXECATTR_BYID, 61 execattr_compar, 62 execattr_getlogstr, 63 execattr_gethash, nsc_ht_default, -1); 64 nam_id_db = make_cache(nsc_key_other, 65 NSS_DBOP_EXECATTR_BYNAMEID, 66 NSC_NAME_EXECATTR_BYNAMEID, 67 execattr_compar, 68 execattr_getlogstr, 69 execattr_gethash, nsc_ht_default, -1); 70 } 71 72 #define EXEC_STR_CMP(s1, s2) \ 73 if ((a = s1) == NULL) \ 74 a = z; \ 75 if ((b = s2) == NULL) \ 76 b = z; \ 77 res = strcmp(a, b); \ 78 if (res != 0) \ 79 return (res > 0 ? 1 : -1); 80 81 static int 82 execattr_compar(const void *n1, const void *n2) { 83 nsc_entry_t *e1 = (nsc_entry_t *)n1; 84 nsc_entry_t *e2 = (nsc_entry_t *)n2; 85 _priv_execattr *ep1 = (_priv_execattr *)e1->key.attrp; 86 _priv_execattr *ep2 = (_priv_execattr *)e2->key.attrp; 87 int res; 88 const char *a, *b, *z = ""; 89 90 /* compare name */ 91 EXEC_STR_CMP(ep1->name, ep2->name); 92 93 /* compare policy */ 94 EXEC_STR_CMP(ep1->policy, ep2->policy); 95 96 /* compare type */ 97 EXEC_STR_CMP(ep1->type, ep2->type); 98 99 /* compare id */ 100 EXEC_STR_CMP(ep1->id, ep2->id); 101 102 /* compare search flag */ 103 return (_NSC_INT_KEY_CMP(ep1->search_flag, ep2->search_flag)); 104 } 105 106 static uint_t 107 execattr_gethash(nss_XbyY_key_t *key, int htsize) { 108 _priv_execattr *ep = key->attrp; 109 char keys[1024]; 110 int len; 111 112 len = snprintf(keys, sizeof (keys), "%s:%s:%s:%s:%d", 113 ep->name ? ep->name : "", ep->type ? ep->type : "", 114 ep->id ? ep->id : "", ep->policy ? ep->policy : "", 115 ep->search_flag); 116 return (db_gethash(keys, len, htsize)); 117 } 118 119 static void 120 execattr_getlogstr(char *name, char *whoami, size_t len, 121 nss_XbyY_args_t *argp) { 122 _priv_execattr *ep = argp->key.attrp; 123 124 (void) snprintf(whoami, len, 125 "%s [name=%s:type=%s:id=%s:policy=%s:flags=%d]", 126 name, check_null(ep->name), check_null(ep->type), 127 check_null(ep->id), check_null(ep->policy), 128 ep->search_flag); 129 } 130