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 #ifndef _NSCD_FRONTEND_H 27 #define _NSCD_FRONTEND_H 28 29 #pragma ident "%Z%%M% %I% %E% SMI" 30 31 #ifdef __cplusplus 32 extern "C" { 33 #endif 34 35 #include "cache.h" 36 37 #define NSCD_LOOKUP_BUFSIZE 1024 * 16 38 #define NSCD_DOORBUF_MAXLEN 1024 * 512 39 #define NSCD_PHDR_LEN(hdrp) ((hdrp)->data_off) 40 #define NSCD_DATA_LEN(hdrp) ((hdrp)->data_len) 41 42 #define NSCD_ALLOC_LOOKUP_BUFFER(bufp, bufsiz, hdrp, space, spsiz) \ 43 if ((hdrp)->pbufsiz <= spsiz) { \ 44 (void) memcpy(space, (hdrp), NSCD_PHDR_LEN((hdrp))); \ 45 bufp = space; \ 46 bufsiz = spsiz; \ 47 hdrp = (nss_pheader_t *)(void *)space; \ 48 } else { \ 49 (bufp) = NULL; \ 50 bufsiz = (hdrp)->pbufsiz; \ 51 if (bufsiz > spsiz) \ 52 bufsiz = NSCD_DOORBUF_MAXLEN; \ 53 (bufp) = alloca(bufsiz); \ 54 if ((bufp) != NULL) { \ 55 (void) memcpy((bufp), (hdrp), NSCD_PHDR_LEN(hdrp)); \ 56 (hdrp) = (nss_pheader_t *)(void *)(bufp); \ 57 } else { \ 58 NSCD_SET_STATUS((hdrp), NSS_ERROR, ENOMEM); \ 59 (void) door_return((char *)(hdrp), \ 60 NSCD_PHDR_LEN(hdrp), NULL, 0); \ 61 } \ 62 } 63 64 #define NSCD_SET_RETURN_ARG(hdrp, arg_size) \ 65 if (NSCD_STATUS_IS_OK((nss_pheader_t *)(hdrp))) \ 66 arg_size = NSCD_PHDR_LEN(hdrp) + (NSCD_DATA_LEN(hdrp) > 0 ? \ 67 NSCD_DATA_LEN(hdrp) + 1 : 0); \ 68 else \ 69 arg_size = NSCD_PHDR_LEN(hdrp); 70 71 /* prototypes */ 72 uid_t _nscd_get_client_euid(); 73 int _nscd_setup_server(char *execname, char **argv); 74 int _nscd_setup_child_server(int did); 75 int _nscd_get_clearance(sema_t *sema); 76 int _nscd_release_clearance(sema_t *sema); 77 void _nscd_init_cache_sema(sema_t *sema, char *cache_name); 78 nscd_rc_t _nscd_alloc_frontend_cfg(); 79 void _nscd_APP_check_cred(void *buf, pid_t *pidp, char *dc_str, 80 int log_comp, int log_level); 81 #ifdef __cplusplus 82 } 83 #endif 84 85 #endif /* _NSCD_FRONTEND_H */ 86