ifspec.c (c7e4935f) | ifspec.c (2b24ab6b) |
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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 --- 5 unchanged lines hidden (view full) --- 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/* | 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 --- 5 unchanged lines hidden (view full) --- 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 2007 Sun Microsystems, Inc. All rights reserved. | 22 * Copyright 2009 Sun Microsystems, Inc. All rights reserved. |
23 * Use is subject to license terms. 24 */ 25 | 23 * Use is subject to license terms. 24 */ 25 |
26#pragma ident "%Z%%M% %I% %E% SMI" 27 | |
28/* 29 * This file contains a routine used to validate a ifconfig-style interface 30 * specification 31 */ 32 33#include <stdlib.h> 34#include <ctype.h> 35#include <alloca.h> --- 51 unchanged lines hidden (view full) --- 87 if (!isdigit(*ep)) { 88 errno = EINVAL; 89 return (-1); 90 } 91 92 for (tp = ep; tp >= bp && isdigit(*tp); tp--) 93 /* Null body */; 94 | 26/* 27 * This file contains a routine used to validate a ifconfig-style interface 28 * specification 29 */ 30 31#include <stdlib.h> 32#include <ctype.h> 33#include <alloca.h> --- 51 unchanged lines hidden (view full) --- 85 if (!isdigit(*ep)) { 86 errno = EINVAL; 87 return (-1); 88 } 89 90 for (tp = ep; tp >= bp && isdigit(*tp); tp--) 91 /* Null body */; 92 |
95 if (*tp == '.' || *tp == ':') { | 93 if (*tp == ':') { |
96 errno = EINVAL; 97 return (-1); 98 } 99 100 *ppa = atoi(tp + 1); 101 return (0); 102} 103 104/* 105 * Given an ifconfig-style inet relative-path interface specification | 94 errno = EINVAL; 95 return (-1); 96 } 97 98 *ppa = atoi(tp + 1); 99 return (0); 100} 101 102/* 103 * Given an ifconfig-style inet relative-path interface specification |
106 * (e.g: hme.[module].[module][PPA]:2), validate its form and decompose the 107 * contents into a dynamically allocated ifspec_t. | 104 * (e.g: bge0:2), validate its form and decompose the contents into a 105 * dynamically allocated ifspec_t. |
108 * 109 * Returns ifspec_t for success, NULL pointer if spec is malformed. 110 */ 111boolean_t 112ifparse_ifspec(const char *ifname, ifspec_t *ifsp) 113{ | 106 * 107 * Returns ifspec_t for success, NULL pointer if spec is malformed. 108 */ 109boolean_t 110ifparse_ifspec(const char *ifname, ifspec_t *ifsp) 111{ |
114 char *mp, *ep, *lp, *tp; 115 char *ifnamecp; 116 size_t iflen; 117 boolean_t have_ppa = B_FALSE; | 112 char *lp, *tp; 113 char ifnamecp[LIFNAMSIZ]; |
118 | 114 |
119 iflen = strlen(ifname); 120 if (iflen > LIFNAMSIZ) { | 115 /* snag a copy we can modify */ 116 if (strlcpy(ifnamecp, ifname, LIFNAMSIZ) >= LIFNAMSIZ) { |
121 errno = EINVAL; 122 return (B_FALSE); 123 } 124 | 117 errno = EINVAL; 118 return (B_FALSE); 119 } 120 |
125 /* snag a copy we can modify */ 126 ifnamecp = alloca(iflen + 1); 127 (void) strlcpy(ifnamecp, ifname, iflen + 1); 128 | |
129 ifsp->ifsp_lunvalid = B_FALSE; 130 131 /* 132 * An interface name must have the format of: | 121 ifsp->ifsp_lunvalid = B_FALSE; 122 123 /* 124 * An interface name must have the format of: |
133 * dev[.module[.module...]][ppa][:lun] | 125 * dev[ppa][:lun] |
134 * | 126 * |
135 * where the ppa must be specified at the end of the interface name. 136 * e.g. ip.foo.tun0 137 * | |
138 * lun - logical unit number. | 127 * lun - logical unit number. |
139 * 140 * Produce substrings for each grouping, starting first with modules, 141 * then lun, devname, and finally ppa. | |
142 */ 143 | 128 */ 129 |
144 /* Any modules? */ 145 mp = strchr(ifnamecp, '.'); 146 | |
147 /* Any logical units? */ 148 lp = strchr(ifnamecp, ':'); | 130 /* Any logical units? */ 131 lp = strchr(ifnamecp, ':'); |
149 150 if (lp != NULL && mp != NULL && lp < mp) { 151 errno = EINVAL; 152 return (B_FALSE); 153 } 154 155 ifsp->ifsp_modcnt = 0; 156 if (mp != NULL) { 157 *mp++ = '\0'; 158 if (lp != NULL) 159 *lp = '\0'; 160 while (mp != NULL && ifsp->ifsp_modcnt <= IFSP_MAXMODS) { 161 if ((ep = strchr(mp, '.')) != NULL) 162 *ep++ = '\0'; 163 (void) strlcpy(ifsp->ifsp_mods[ifsp->ifsp_modcnt++], 164 mp, LIFNAMSIZ); 165 mp = ep; 166 } 167 if (lp != NULL) 168 *lp = ':'; 169 if (ifsp->ifsp_modcnt > IFSP_MAXMODS) { 170 errno = E2BIG; 171 return (B_FALSE); 172 } 173 } 174 | |
175 if (lp != NULL) { 176 if (getlun(lp, strlen(lp), &ifsp->ifsp_lun) != 0) 177 return (B_FALSE); 178 ifsp->ifsp_lunvalid = B_TRUE; 179 } 180 181 (void) strlcpy(ifsp->ifsp_devnm, ifnamecp, LIFNAMSIZ); 182 | 132 if (lp != NULL) { 133 if (getlun(lp, strlen(lp), &ifsp->ifsp_lun) != 0) 134 return (B_FALSE); 135 ifsp->ifsp_lunvalid = B_TRUE; 136 } 137 138 (void) strlcpy(ifsp->ifsp_devnm, ifnamecp, LIFNAMSIZ); 139 |
183 /* 184 * Find ppa - has to be part of devname or if modules exist part of 185 * last module name. 186 */ 187 if (ifsp->ifsp_modcnt != 0 && 188 getppa(ifsp->ifsp_mods[ifsp->ifsp_modcnt - 1], 189 strlen(ifsp->ifsp_mods[ifsp->ifsp_modcnt - 1]), 190 &ifsp->ifsp_ppa) == 0) { 191 have_ppa = B_TRUE; 192 } else if (ifsp->ifsp_modcnt == 0 && 193 getppa(ifsp->ifsp_devnm, strlen(ifsp->ifsp_devnm), 194 &ifsp->ifsp_ppa) == 0) { 195 have_ppa = B_TRUE; | 140 /* Find ppa */ 141 if (getppa(ifsp->ifsp_devnm, strlen(ifsp->ifsp_devnm), 142 &ifsp->ifsp_ppa) != 0) { 143 return (B_FALSE); 144 } |
196 | 145 |
197 /* strip the ppa off of the device name if present */ 198 for (tp = &ifsp->ifsp_devnm[strlen(ifsp->ifsp_devnm) - 1]; 199 tp >= ifsp->ifsp_devnm && isdigit(*tp); tp--) 200 *tp = '\0'; | 146 /* strip the ppa off of the device name if present */ 147 for (tp = &ifsp->ifsp_devnm[strlen(ifsp->ifsp_devnm) - 1]; 148 tp >= ifsp->ifsp_devnm && isdigit(*tp); tp--) { 149 *tp = '\0'; |
201 } 202 | 150 } 151 |
203 return (have_ppa); | 152 return (B_TRUE); |
204} | 153} |