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 /* 27 * Routines to handle getexec* calls in nscd 28 */ 29 30 #include <string.h> 31 #include <exec_attr.h> 32 #include "cache.h" 33 34 static int execattr_compar(const void *, const void *); 35 static uint_t execattr_gethash(nss_XbyY_key_t *, int); 36 static void execattr_getlogstr(char *, char *, size_t, nss_XbyY_args_t *); 37 38 #define nam_db ctx->nsc_db[0] 39 #define id_db ctx->nsc_db[1] 40 #define nam_id_db ctx->nsc_db[2] 41 #define NSC_NAME_EXECATTR_BYNAME "execattr_byname" 42 #define NSC_NAME_EXECATTR_BYID "execattr_byid" 43 #define NSC_NAME_EXECATTR_BYNAMEID "execattr_bynameid" 44 45 void 46 exec_init_ctx(nsc_ctx_t *ctx) { 47 ctx->dbname = NSS_DBNAM_EXECATTR; 48 ctx->file_name = "/etc/security/exec_attr"; 49 ctx->db_count = 3; 50 nam_db = make_cache(nsc_key_other, 51 NSS_DBOP_EXECATTR_BYNAME, 52 NSC_NAME_EXECATTR_BYNAME, 53 execattr_compar, 54 execattr_getlogstr, 55 execattr_gethash, nsc_ht_default, -1); 56 id_db = make_cache(nsc_key_other, 57 NSS_DBOP_EXECATTR_BYID, 58 NSC_NAME_EXECATTR_BYID, 59 execattr_compar, 60 execattr_getlogstr, 61 execattr_gethash, nsc_ht_default, -1); 62 nam_id_db = make_cache(nsc_key_other, 63 NSS_DBOP_EXECATTR_BYNAMEID, 64 NSC_NAME_EXECATTR_BYNAMEID, 65 execattr_compar, 66 execattr_getlogstr, 67 execattr_gethash, nsc_ht_default, -1); 68 } 69 70 #define EXEC_STR_CMP(s1, s2) \ 71 if ((a = s1) == NULL) \ 72 a = z; \ 73 if ((b = s2) == NULL) \ 74 b = z; \ 75 res = strcmp(a, b); \ 76 if (res != 0) \ 77 return (res > 0 ? 1 : -1); 78 79 static int 80 execattr_compar(const void *n1, const void *n2) { 81 nsc_entry_t *e1 = (nsc_entry_t *)n1; 82 nsc_entry_t *e2 = (nsc_entry_t *)n2; 83 _priv_execattr *ep1 = (_priv_execattr *)e1->key.attrp; 84 _priv_execattr *ep2 = (_priv_execattr *)e2->key.attrp; 85 int res; 86 const char *a, *b, *z = ""; 87 88 /* compare name */ 89 EXEC_STR_CMP(ep1->name, ep2->name); 90 91 /* compare policy */ 92 EXEC_STR_CMP(ep1->policy, ep2->policy); 93 94 /* compare type */ 95 EXEC_STR_CMP(ep1->type, ep2->type); 96 97 /* compare id */ 98 EXEC_STR_CMP(ep1->id, ep2->id); 99 100 /* compare search flag */ 101 return (_NSC_INT_KEY_CMP(ep1->search_flag, ep2->search_flag)); 102 } 103 104 static uint_t 105 execattr_gethash(nss_XbyY_key_t *key, int htsize) { 106 _priv_execattr *ep = key->attrp; 107 char keys[1024]; 108 int len; 109 110 len = snprintf(keys, sizeof (keys), "%s:%s:%s:%s:%d", 111 ep->name ? ep->name : "", ep->type ? ep->type : "", 112 ep->id ? ep->id : "", ep->policy ? ep->policy : "", 113 ep->search_flag); 114 return (db_gethash(keys, len, htsize)); 115 } 116 117 static void 118 execattr_getlogstr(char *name, char *whoami, size_t len, 119 nss_XbyY_args_t *argp) { 120 _priv_execattr *ep = argp->key.attrp; 121 122 (void) snprintf(whoami, len, 123 "%s [name=%s:type=%s:id=%s:policy=%s:flags=%d]", 124 name, check_null(ep->name), check_null(ep->type), 125 check_null(ep->id), check_null(ep->policy), 126 ep->search_flag); 127 } 128