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
27 #include "HBANPIVPort.h"
28 #include "Exceptions.h"
29 #include "Trace.h"
30 #include <iostream>
31 #include <iomanip>
32 #include <cerrno>
33 #include <cstring>
34 #include <sys/types.h>
35 #include <sys/mkdev.h>
36 #include <sys/stat.h>
37 #include <fcntl.h>
38 #include <unistd.h>
39 #include <stropts.h>
40 #include <dirent.h>
41 #include <libdevinfo.h>
42
43 using namespace std;
44
45
46 /**
47 * @memo Construct a new default HBA Port
48 * @version 1.7
49 */
HBANPIVPort()50 HBANPIVPort::HBANPIVPort() {
51 }
52
53 /**
54 * @memo Compare two HBA ports for equality
55 * @return TRUE if both ports are the same
56 * @return FALSE if the ports are different
57 * @version 1.7
58 *
59 * @doc Comparison is based on Node WWN, Port WWN and path
60 */
operator ==(HBANPIVPort & comp)61 bool HBANPIVPort::operator==(HBANPIVPort &comp) {
62 return (this->getPortWWN() == comp.getPortWWN() &&
63 this->getNodeWWN() == comp.getNodeWWN());
64 }
65
66 /*
67 * Finds controller path for a give device path.
68 *
69 * Return vale: controller path.
70 */
lookupControllerPath(string path)71 string HBANPIVPort::lookupControllerPath(string path) {
72 Trace log("lookupControllerPath");
73 DIR *dp;
74 char buf[MAXPATHLEN];
75 char node[MAXPATHLEN];
76 struct dirent **dirpp, *dirp;
77 const char dir[] = "/dev/cfg";
78 ssize_t count;
79 uchar_t *dir_buf = new uchar_t[sizeof (struct dirent) + MAXPATHLEN];
80
81 if ((dp = opendir(dir)) == NULL) {
82 string tmp = "Unable to open ";
83 tmp += dir;
84 tmp += "to find controller number.";
85 delete[] (dir_buf);
86 throw IOError(tmp);
87 }
88
89 dirp = (struct dirent *) dir_buf;
90 dirpp = &dirp;
91 while ((readdir_r(dp, dirp, dirpp)) == 0 && dirp != NULL) {
92 if (strcmp(dirp->d_name, ".") == 0 ||
93 strcmp(dirp->d_name, "..") == 0) {
94 continue;
95 }
96 sprintf(node, "%s/%s", dir, dirp->d_name);
97 if ((count = readlink(node,buf,sizeof(buf)))) {
98 buf[count] = '\0';
99 if (strstr(buf, path.c_str())) {
100 string cfg_path = dir;
101 cfg_path += "/";
102 cfg_path += dirp->d_name;
103 closedir(dp);
104 delete[] (dir_buf);
105 return (cfg_path);
106 }
107 }
108 }
109
110 closedir(dp);
111 delete[] (dir_buf);
112 throw InternalError("Unable to find controller path");
113 }
114
115