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, Version 1.0 only 6 * (the "License"). You may not use this file except in compliance 7 * with the License. 8 * 9 * You can obtain a copy of the license at usr/src/OPENSOLARIS.LICENSE 10 * or http://www.opensolaris.org/os/licensing. 11 * See the License for the specific language governing permissions 12 * and limitations under the License. 13 * 14 * When distributing Covered Code, include this CDDL HEADER in each 15 * file and include the License file at usr/src/OPENSOLARIS.LICENSE. 16 * If applicable, add the following below this CDDL HEADER, with the 17 * fields enclosed by brackets "[]" replaced with your own identifying 18 * information: Portions Copyright [yyyy] [name of copyright owner] 19 * 20 * CDDL HEADER END 21 */ 22 /* 23 * Copyright 2005 Sun Microsystems, Inc. All rights reserved. 24 * Use is subject to license terms. 25 */ 26 27 #pragma ident "%Z%%M% %I% %E% SMI" 28 29 #include <arpa/inet.h> /* inet_addr() */ 30 #include <ctype.h> 31 #include <libscf.h> 32 #include <netdb.h> /* hostent */ 33 #include <netinet/in.h> /* ip_addr_t */ 34 #include <stdio.h> 35 #include <errno.h> 36 #include <limits.h> 37 #include <stdlib.h> 38 #include <fcntl.h> 39 #include <strings.h> 40 #include <sys/varargs.h> 41 #include "ksslcfg.h" 42 43 /* 44 * ksslcfg(1M) 45 * 46 * ksslcfg manages smf(5) instances for the Kernel SSL proxy module. 47 * It makes use of kssladm(1M) which does the grunt work. 48 */ 49 50 #define KSSLCFG_VERSION "1.0" 51 52 boolean_t verbose = B_FALSE; 53 const char *SERVICE_NAME = "network/ssl/proxy"; 54 55 void 56 KSSL_DEBUG(const char *format, ...) 57 { 58 va_list ap; 59 60 if (verbose) { 61 va_start(ap, format); 62 (void) vprintf(format, ap); 63 va_end(ap); 64 } 65 } 66 67 int 68 get_portnum(const char *s, ushort_t *rport) 69 { 70 unsigned long port; 71 72 errno = 0; 73 port = strtoul(s, NULL, 10); 74 if (port > USHRT_MAX || port == 0 || errno != 0) { 75 return (0); 76 } 77 78 if (rport != NULL) 79 *rport = (ushort_t)port; 80 return (1); 81 } 82 83 #define ANY_ADDR "INADDR_ANY" 84 85 /* 86 * An instance name is formed using either the host name in the fully 87 * qualified domain name form (FQDN) which should map to a specific IP address 88 * or using INADDR_ANY which means all IP addresses. 89 * 90 * We do a lookup or reverse lookup to get the host name. It is assumed that 91 * the returned name is in the FQDN form. i.e. DNS is used. 92 */ 93 char * 94 create_instance_name(const char *arg, char **inaddr_any_name, 95 boolean_t is_create) 96 { 97 int len; 98 uint16_t port; 99 char *cname; 100 in_addr_t addr; 101 char *instance_name; 102 const char *prefix = "kssl-"; 103 char *first_space = strchr(arg, ' '); 104 105 if (first_space == NULL) { 106 if (get_portnum(arg, &port) == 0) { 107 (void) fprintf(stderr, 108 gettext("Error: Invalid port value -- %s\n"), 109 arg); 110 return (NULL); 111 } 112 KSSL_DEBUG("port=%d\n", port); 113 if ((cname = strdup(ANY_ADDR)) == NULL) 114 return (NULL); 115 } else { 116 char *temp_str; 117 char *ptr; 118 struct hostent *hp; 119 boolean_t do_warn; 120 121 if (get_portnum(first_space + 1, &port) == 0) { 122 (void) fprintf(stderr, 123 gettext("Error: Invalid port value -- %s\n"), 124 first_space + 1); 125 return (NULL); 126 } 127 KSSL_DEBUG("port=%d\n", port); 128 129 if ((temp_str = strdup(arg)) == NULL) 130 return (NULL); 131 *(strchr(temp_str, ' ')) = '\0'; 132 133 if ((int)(addr = inet_addr(temp_str)) == -1) { 134 if ((hp = gethostbyname(temp_str)) == NULL) { 135 (void) fprintf(stderr, 136 gettext("Error: Unknown host -- %s\n"), 137 temp_str); 138 free(temp_str); 139 return (NULL); 140 } 141 } else { 142 /* This is an IP address. Do a reverse lookup. */ 143 if ((hp = gethostbyaddr((char *)&addr, 4, AF_INET)) 144 == NULL) { 145 (void) fprintf(stderr, 146 gettext("Error: Unknown host -- %s\n"), 147 temp_str); 148 free(temp_str); 149 return (NULL); 150 } 151 } 152 153 if ((ptr = cname = strdup(hp->h_name)) == NULL) { 154 free(temp_str); 155 return (NULL); 156 } 157 do_warn = B_TRUE; 158 /* "s/./-/g" */ 159 while ((ptr = strchr(ptr, '.')) != NULL) { 160 if (do_warn) 161 do_warn = B_FALSE; 162 *ptr = '-'; 163 ptr++; 164 } 165 166 if (do_warn && is_create) { 167 (void) fprintf(stderr, 168 gettext("Warning: %s does not appear to have a" 169 " registered DNS name.\n"), temp_str); 170 } 171 172 free(temp_str); 173 } 174 175 KSSL_DEBUG("Cannonical host name =%s\n", cname); 176 177 len = strlen(prefix) + strlen(cname) + 10; 178 if ((instance_name = malloc(len)) == NULL) { 179 (void) fprintf(stderr, 180 gettext("Error: memory allocation failure.\n")); 181 return (NULL); 182 } 183 (void) snprintf(instance_name, len, "%s%s-%d", prefix, cname, port); 184 185 if (is_create) { 186 len = strlen(prefix) + strlen(ANY_ADDR) + 10; 187 if ((*inaddr_any_name = malloc(len)) == NULL) { 188 (void) fprintf(stderr, 189 gettext("Error: memory allocation failure.\n")); 190 free(cname); 191 return (NULL); 192 } 193 194 (void) snprintf(*inaddr_any_name, len, 195 "%s%s-%d", prefix, ANY_ADDR, port); 196 } 197 198 free(cname); 199 KSSL_DEBUG("instance_name=%s\n", instance_name); 200 return (instance_name); 201 } 202 203 static void 204 usage_all(void) 205 { 206 (void) fprintf(stderr, gettext("Usage:\n")); 207 usage_create(B_FALSE); 208 usage_delete(B_FALSE); 209 (void) fprintf(stderr, "ksslcfg -V\n"); 210 (void) fprintf(stderr, "ksslcfg -?\n"); 211 } 212 213 214 int 215 main(int argc, char **argv) 216 { 217 int rv = SUCCESS; 218 219 (void) setlocale(LC_ALL, ""); 220 #if !defined(TEXT_DOMAIN) /* Should be defined by cc -D */ 221 #define TEXT_DOMAIN "SYS_TEST" /* Use this only if it weren't */ 222 #endif 223 (void) textdomain(TEXT_DOMAIN); 224 225 if (argc < 2) { 226 usage_all(); 227 return (ERROR_USAGE); 228 } 229 230 if (strcmp(argv[1], "create") == 0) { 231 rv = do_create(argc, argv); 232 } else if (strcmp(argv[1], "delete") == 0) { 233 rv = do_delete(argc, argv); 234 } else if (strcmp(argv[1], "-V") == 0) { 235 (void) printf("%s\n", KSSLCFG_VERSION); 236 } else if (strcmp(argv[1], "-?") == 0) { 237 usage_all(); 238 } else { 239 (void) fprintf(stderr, 240 gettext("Error: Unknown subcommand -- %s\n"), argv[1]); 241 usage_all(); 242 rv = ERROR_USAGE; 243 } 244 245 return (rv); 246 } 247