1 /* 2 * Copyright (c) 1997-2003 Kungliga Tekniska H�gskolan 3 * (Royal Institute of Technology, Stockholm, Sweden). 4 * All rights reserved. 5 * 6 * Redistribution and use in source and binary forms, with or without 7 * modification, are permitted provided that the following conditions 8 * are met: 9 * 10 * 1. Redistributions of source code must retain the above copyright 11 * notice, this list of conditions and the following disclaimer. 12 * 13 * 2. Redistributions in binary form must reproduce the above copyright 14 * notice, this list of conditions and the following disclaimer in the 15 * documentation and/or other materials provided with the distribution. 16 * 17 * 3. Neither the name of the Institute nor the names of its contributors 18 * may be used to endorse or promote products derived from this software 19 * without specific prior written permission. 20 * 21 * THIS SOFTWARE IS PROVIDED BY THE INSTITUTE AND CONTRIBUTORS ``AS IS'' AND 22 * ANY EXPRESS OR IMPLIED WARRANTIES, INCLUDING, BUT NOT LIMITED TO, THE 23 * IMPLIED WARRANTIES OF MERCHANTABILITY AND FITNESS FOR A PARTICULAR PURPOSE 24 * ARE DISCLAIMED. IN NO EVENT SHALL THE INSTITUTE OR CONTRIBUTORS BE LIABLE 25 * FOR ANY DIRECT, INDIRECT, INCIDENTAL, SPECIAL, EXEMPLARY, OR CONSEQUENTIAL 26 * DAMAGES (INCLUDING, BUT NOT LIMITED TO, PROCUREMENT OF SUBSTITUTE GOODS 27 * OR SERVICES; LOSS OF USE, DATA, OR PROFITS; OR BUSINESS INTERRUPTION) 28 * HOWEVER CAUSED AND ON ANY THEORY OF LIABILITY, WHETHER IN CONTRACT, STRICT 29 * LIABILITY, OR TORT (INCLUDING NEGLIGENCE OR OTHERWISE) ARISING IN ANY WAY 30 * OUT OF THE USE OF THIS SOFTWARE, EVEN IF ADVISED OF THE POSSIBILITY OF 31 * SUCH DAMAGE. 32 */ 33 34 #ifdef HAVE_CONFIG_H 35 #include <config.h> 36 RCSID("$Id: afslog.c,v 1.21.2.2 2003/08/25 11:43:51 lha Exp $"); 37 #endif 38 #include <ctype.h> 39 #ifdef KRB5 40 #include <krb5.h> 41 #endif 42 #ifdef KRB4 43 #include <krb.h> 44 #endif 45 #include <kafs.h> 46 #include <roken.h> 47 #include <getarg.h> 48 #include <err.h> 49 50 static int help_flag; 51 static int version_flag; 52 #if 0 53 static int create_user; 54 #endif 55 static getarg_strings cells; 56 static char *realm; 57 static getarg_strings files; 58 static int unlog_flag; 59 static int verbose; 60 #ifdef KRB4 61 static int use_krb4 = 1; 62 #endif 63 #ifdef KRB5 64 static int use_krb5 = 1; 65 #endif 66 67 struct getargs args[] = { 68 { "cell", 'c', arg_strings, &cells, "cells to get tokens for", "cell" }, 69 { "file", 'p', arg_strings, &files, "files to get tokens for", "path" }, 70 { "realm", 'k', arg_string, &realm, "realm for afs cell", "realm" }, 71 { "unlog", 'u', arg_flag, &unlog_flag, "remove tokens" }, 72 #ifdef KRB4 73 { "v4", 0, arg_negative_flag, &use_krb4, "use Kerberos 4" }, 74 #endif 75 #ifdef KRB5 76 { "v5", 0, arg_negative_flag, &use_krb5, "use Kerberos 5" }, 77 #endif 78 #if 0 79 { "create-user", 0, arg_flag, &create_user, "create user if not found" }, 80 #endif 81 { "verbose",'v', arg_flag, &verbose }, 82 { "version", 0, arg_flag, &version_flag }, 83 { "help", 'h', arg_flag, &help_flag }, 84 }; 85 86 static int num_args = sizeof(args) / sizeof(args[0]); 87 88 #ifdef KRB5 89 krb5_context context; 90 krb5_ccache id; 91 #endif 92 93 static const char * 94 expand_one_file(FILE *f, const char *cell) 95 { 96 static char buf[1024]; 97 char *p; 98 99 while (fgets (buf, sizeof(buf), f) != NULL) { 100 if(buf[0] == '>') { 101 for(p = buf; *p && !isspace((unsigned char)*p) && *p != '#'; p++) 102 ; 103 *p = '\0'; 104 if(strncmp(buf + 1, cell, strlen(cell)) == 0) 105 return buf + 1; 106 } 107 buf[0] = '\0'; 108 } 109 return NULL; 110 } 111 112 static const char * 113 expand_cell_name(const char *cell) 114 { 115 FILE *f; 116 const char *c; 117 const char **fn, *files[] = { _PATH_CELLSERVDB, 118 _PATH_ARLA_CELLSERVDB, 119 _PATH_OPENAFS_DEBIAN_CELLSERVDB, 120 _PATH_ARLA_DEBIAN_CELLSERVDB, 121 NULL }; 122 for(fn = files; *fn; fn++) { 123 f = fopen(*fn, "r"); 124 if(f == NULL) 125 continue; 126 c = expand_one_file(f, cell); 127 fclose(f); 128 if(c) 129 return c; 130 } 131 return cell; 132 } 133 134 #if 0 135 static int 136 createuser (char *cell) 137 { 138 char cellbuf[64]; 139 char name[ANAME_SZ]; 140 char instance[INST_SZ]; 141 char realm[REALM_SZ]; 142 char cmd[1024]; 143 144 if (cell == NULL) { 145 FILE *f; 146 int len; 147 148 f = fopen (_PATH_THISCELL, "r"); 149 if (f == NULL) 150 err (1, "open(%s)", _PATH_THISCELL); 151 if (fgets (cellbuf, sizeof(cellbuf), f) == NULL) 152 err (1, "read cellname from %s", _PATH_THISCELL); 153 len = strlen(cellbuf); 154 if (cellbuf[len-1] == '\n') 155 cellbuf[len-1] = '\0'; 156 cell = cellbuf; 157 } 158 159 if(krb_get_default_principal(name, instance, realm)) 160 errx (1, "Could not even figure out who you are"); 161 162 snprintf (cmd, sizeof(cmd), 163 "pts createuser %s%s%s@%s -cell %s", 164 name, *instance ? "." : "", instance, strlwr(realm), 165 cell); 166 DEBUG("Executing %s", cmd); 167 return system(cmd); 168 } 169 #endif 170 171 static void 172 usage(int ecode) 173 { 174 arg_printusage(args, num_args, NULL, "[cell|path]..."); 175 exit(ecode); 176 } 177 178 struct cell_list { 179 char *cell; 180 struct cell_list *next; 181 } *cell_list; 182 183 static int 184 afslog_cell(const char *cell, int expand) 185 { 186 struct cell_list *p, **q; 187 const char *c = cell; 188 if(expand){ 189 c = expand_cell_name(cell); 190 if(c == NULL){ 191 warnx("No cell matching \"%s\" found.", cell); 192 return -1; 193 } 194 if(verbose && strcmp(c, cell) != 0) 195 warnx("Cell \"%s\" expanded to \"%s\"", cell, c); 196 } 197 /* add to list of cells to get tokens for, and also remove 198 duplicates; the actual afslog takes place later */ 199 for(p = cell_list, q = &cell_list; p; q = &p->next, p = p->next) 200 if(strcmp(p->cell, c) == 0) 201 return 0; 202 p = malloc(sizeof(*p)); 203 if(p == NULL) 204 return -1; 205 p->cell = strdup(c); 206 if(p->cell == NULL) { 207 free(p); 208 return -1; 209 } 210 p->next = NULL; 211 *q = p; 212 return 0; 213 } 214 215 static int 216 afslog_file(const char *path) 217 { 218 char cell[64]; 219 if(k_afs_cell_of_file(path, cell, sizeof(cell))){ 220 warnx("No cell found for file \"%s\".", path); 221 return -1; 222 } 223 if(verbose) 224 warnx("File \"%s\" lives in cell \"%s\"", path, cell); 225 return afslog_cell(cell, 0); 226 } 227 228 static int 229 do_afslog(const char *cell) 230 { 231 int k5ret, k4ret; 232 233 k5ret = k4ret = 0; 234 235 #ifdef KRB5 236 if(context != NULL && id != NULL && use_krb5) { 237 k5ret = krb5_afslog(context, id, cell, NULL); 238 if(k5ret == 0) 239 return 0; 240 } 241 #endif 242 #if KRB4 243 if (use_krb4) { 244 k4ret = krb_afslog(cell, NULL); 245 if(k4ret == 0) 246 return 0; 247 } 248 #endif 249 if (cell == NULL) 250 cell = "<default cell>"; 251 #ifdef KRB5 252 if (k5ret) 253 warnx("krb5_afslog(%s): %s", cell, krb5_get_err_text(context, k5ret)); 254 #endif 255 #ifdef KRB4 256 if (k4ret) 257 warnx("krb_afslog(%s): %s", cell, krb_get_err_text(k4ret)); 258 #endif 259 if (k5ret || k4ret) 260 return 1; 261 return 0; 262 } 263 264 static void 265 log_func(void *ctx, const char *str) 266 { 267 fprintf(stderr, "%s\n", str); 268 } 269 270 int 271 main(int argc, char **argv) 272 { 273 int optind = 0; 274 int i; 275 int num; 276 int ret = 0; 277 int failed = 0; 278 struct cell_list *p; 279 280 setprogname(argv[0]); 281 282 if(getarg(args, num_args, argc, argv, &optind)) 283 usage(1); 284 if(help_flag) 285 usage(0); 286 if(version_flag) { 287 print_version(NULL); 288 exit(0); 289 } 290 291 if(!k_hasafs()) 292 errx(1, "AFS does not seem to be present on this machine"); 293 294 if(unlog_flag){ 295 k_unlog(); 296 exit(0); 297 } 298 #ifdef KRB5 299 ret = krb5_init_context(&context); 300 if (ret) 301 context = NULL; 302 else 303 if(krb5_cc_default(context, &id) != 0) 304 id = NULL; 305 #endif 306 307 if (verbose) 308 kafs_set_verbose(log_func, NULL); 309 310 num = 0; 311 for(i = 0; i < files.num_strings; i++){ 312 afslog_file(files.strings[i]); 313 num++; 314 } 315 free_getarg_strings (&files); 316 for(i = 0; i < cells.num_strings; i++){ 317 afslog_cell(cells.strings[i], 1); 318 num++; 319 } 320 free_getarg_strings (&cells); 321 for(i = optind; i < argc; i++){ 322 num++; 323 if(strcmp(argv[i], ".") == 0 || 324 strcmp(argv[i], "..") == 0 || 325 strchr(argv[i], '/') || 326 access(argv[i], F_OK) == 0) 327 afslog_file(argv[i]); 328 else 329 afslog_cell(argv[i], 1); 330 } 331 if(num == 0) { 332 if(do_afslog(NULL)) 333 failed++; 334 } else 335 for(p = cell_list; p; p = p->next) { 336 if(verbose) 337 warnx("Getting tokens for cell \"%s\"", p->cell); 338 if(do_afslog(p->cell)) 339 failed++; 340 } 341 342 return failed; 343 } 344