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 #include <mem.h> 29 #include <fcntl.h> 30 #include <unistd.h> 31 #include <errno.h> 32 #include <sys/mem.h> 33 #include <fm/fmd_fmri.h> 34 35 void 36 mem_strarray_free(char **arr, size_t dim) 37 { 38 int i; 39 40 for (i = 0; i < dim; i++) { 41 if (arr[i] != NULL) 42 fmd_fmri_strfree(arr[i]); 43 } 44 fmd_fmri_free(arr, sizeof (char *) * dim); 45 } 46 47 int 48 mem_page_cmd(int cmd, nvlist_t *nvl) 49 { 50 mem_page_t mpage; 51 char *fmribuf; 52 size_t fmrisz; 53 int fd, rc, err; 54 55 if ((fd = open("/dev/mem", O_RDONLY)) < 0) 56 return (-1); /* errno is set for us */ 57 58 if ((errno = nvlist_size(nvl, &fmrisz, NV_ENCODE_NATIVE)) != 0 || 59 fmrisz > MEM_FMRI_MAX_BUFSIZE || 60 (fmribuf = fmd_fmri_alloc(fmrisz)) == NULL) { 61 (void) close(fd); 62 return (-1); /* errno is set for us */ 63 } 64 65 if ((errno = nvlist_pack(nvl, &fmribuf, &fmrisz, 66 NV_ENCODE_NATIVE, 0)) != 0) { 67 fmd_fmri_free(fmribuf, fmrisz); 68 (void) close(fd); 69 return (-1); /* errno is set for us */ 70 } 71 72 mpage.m_fmri = fmribuf; 73 mpage.m_fmrisz = fmrisz; 74 75 if ((rc = ioctl(fd, cmd, &mpage)) < 0) 76 err = errno; 77 78 fmd_fmri_free(fmribuf, fmrisz); 79 80 (void) close(fd); 81 82 if (rc < 0) { 83 errno = err; 84 return (-1); 85 } 86 87 return (0); 88 } 89