| 1 | /*
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| 2 | * Copyright (c) 1997-2003 Kungliga Tekniska Högskolan
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| 3 | * (Royal Institute of Technology, Stockholm, Sweden).
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| 4 | * All rights reserved.
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| 5 | *
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| 6 | * Redistribution and use in source and binary forms, with or without
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| 7 | * modification, are permitted provided that the following conditions
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| 8 | * are met:
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| 9 | *
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| 10 | * 1. Redistributions of source code must retain the above copyright
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| 11 | * notice, this list of conditions and the following disclaimer.
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| 12 | *
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| 13 | * 2. Redistributions in binary form must reproduce the above copyright
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| 14 | * notice, this list of conditions and the following disclaimer in the
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| 15 | * documentation and/or other materials provided with the distribution.
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| 16 | *
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| 17 | * 3. Neither the name of the Institute nor the names of its contributors
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| 18 | * may be used to endorse or promote products derived from this software
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| 19 | * without specific prior written permission.
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| 20 | *
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| 21 | * THIS SOFTWARE IS PROVIDED BY THE INSTITUTE AND CONTRIBUTORS ``AS IS'' AND
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| 22 | * ANY EXPRESS OR IMPLIED WARRANTIES, INCLUDING, BUT NOT LIMITED TO, THE
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| 23 | * IMPLIED WARRANTIES OF MERCHANTABILITY AND FITNESS FOR A PARTICULAR PURPOSE
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| 24 | * ARE DISCLAIMED. IN NO EVENT SHALL THE INSTITUTE OR CONTRIBUTORS BE LIABLE
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| 25 | * FOR ANY DIRECT, INDIRECT, INCIDENTAL, SPECIAL, EXEMPLARY, OR CONSEQUENTIAL
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| 26 | * DAMAGES (INCLUDING, BUT NOT LIMITED TO, PROCUREMENT OF SUBSTITUTE GOODS
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| 27 | * OR SERVICES; LOSS OF USE, DATA, OR PROFITS; OR BUSINESS INTERRUPTION)
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| 28 | * HOWEVER CAUSED AND ON ANY THEORY OF LIABILITY, WHETHER IN CONTRACT, STRICT
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| 29 | * LIABILITY, OR TORT (INCLUDING NEGLIGENCE OR OTHERWISE) ARISING IN ANY WAY
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| 30 | * OUT OF THE USE OF THIS SOFTWARE, EVEN IF ADVISED OF THE POSSIBILITY OF
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| 31 | * SUCH DAMAGE.
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| 32 | */
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| 33 |
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| 34 | #ifdef HAVE_CONFIG_H
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| 35 | #include <config.h>
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| 36 | RCSID("$Id$");
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| 37 | #endif
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| 38 | #include <ctype.h>
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| 39 | #ifdef KRB5
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| 40 | #include <krb5.h>
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| 41 | #endif
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| 42 | #include <kafs.h>
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| 43 | #include <roken.h>
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| 44 | #include <getarg.h>
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| 45 | #include <err.h>
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| 46 |
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| 47 | static int help_flag;
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| 48 | static int version_flag;
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| 49 | static getarg_strings cells;
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| 50 | static char *realm;
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| 51 | static getarg_strings files;
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| 52 | static int unlog_flag;
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| 53 | static int verbose;
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| 54 | #ifdef KRB5
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| 55 | static char *client_string;
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| 56 | static char *cache_string;
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| 57 | static int use_krb5 = 1;
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| 58 | #endif
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| 59 |
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| 60 | struct getargs args[] = {
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| 61 | { "cell", 'c', arg_strings, &cells, "cells to get tokens for", "cell" },
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| 62 | { "file", 'p', arg_strings, &files, "files to get tokens for", "path" },
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| 63 | { "realm", 'k', arg_string, &realm, "realm for afs cell", "realm" },
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| 64 | { "unlog", 'u', arg_flag, &unlog_flag, "remove tokens" },
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| 65 | #ifdef KRB5
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| 66 | { "principal",'P',arg_string,&client_string,"principal to use","principal"},
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| 67 | { "cache", 0, arg_string, &cache_string, "ccache to use", "cache"},
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| 68 | { "v5", 0, arg_negative_flag, &use_krb5, "don't use Kerberos 5" },
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| 69 | #endif
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| 70 | { "verbose",'v', arg_flag, &verbose },
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| 71 | { "version", 0, arg_flag, &version_flag },
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| 72 | { "help", 'h', arg_flag, &help_flag },
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| 73 | };
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| 74 |
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| 75 | static int num_args = sizeof(args) / sizeof(args[0]);
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| 76 |
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| 77 | #ifdef KRB5
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| 78 | krb5_context context;
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| 79 | krb5_ccache id;
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| 80 | #endif
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| 81 |
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| 82 | static const char *
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| 83 | expand_one_file(FILE *f, const char *cell)
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| 84 | {
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| 85 | static char buf[1024];
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| 86 | char *p;
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| 87 |
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| 88 | while (fgets (buf, sizeof(buf), f) != NULL) {
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| 89 | if(buf[0] == '>') {
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| 90 | for(p = buf; *p && !isspace((unsigned char)*p) && *p != '#'; p++)
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| 91 | ;
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| 92 | *p = '\0';
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| 93 | if(strncmp(buf + 1, cell, strlen(cell)) == 0)
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| 94 | return buf + 1;
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| 95 | }
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| 96 | buf[0] = '\0';
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| 97 | }
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| 98 | return NULL;
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| 99 | }
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| 100 |
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| 101 | static const char *
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| 102 | expand_cell_name(const char *cell)
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| 103 | {
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| 104 | FILE *f;
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| 105 | const char *c;
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| 106 | const char **fn, *files[] = { _PATH_CELLSERVDB,
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| 107 | _PATH_ARLA_CELLSERVDB,
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| 108 | _PATH_OPENAFS_DEBIAN_CELLSERVDB,
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| 109 | _PATH_ARLA_DEBIAN_CELLSERVDB,
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| 110 | NULL };
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| 111 | for(fn = files; *fn; fn++) {
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| 112 | f = fopen(*fn, "r");
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| 113 | if(f == NULL)
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| 114 | continue;
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| 115 | c = expand_one_file(f, cell);
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| 116 | fclose(f);
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| 117 | if(c)
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| 118 | return c;
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| 119 | }
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| 120 | return cell;
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| 121 | }
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| 122 |
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| 123 | static void
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| 124 | usage(int ecode)
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| 125 | {
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| 126 | arg_printusage(args, num_args, NULL, "[cell|path]...");
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| 127 | exit(ecode);
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| 128 | }
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| 129 |
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| 130 | struct cell_list {
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| 131 | char *cell;
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| 132 | struct cell_list *next;
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| 133 | } *cell_list;
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| 134 |
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| 135 | static int
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| 136 | afslog_cell(const char *cell, int expand)
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| 137 | {
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| 138 | struct cell_list *p, **q;
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| 139 | const char *c = cell;
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| 140 | if(expand){
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| 141 | c = expand_cell_name(cell);
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| 142 | if(c == NULL){
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| 143 | warnx("No cell matching \"%s\" found.", cell);
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| 144 | return -1;
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| 145 | }
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| 146 | if(verbose && strcmp(c, cell) != 0)
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| 147 | warnx("Cell \"%s\" expanded to \"%s\"", cell, c);
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| 148 | }
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| 149 | /* add to list of cells to get tokens for, and also remove
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| 150 | duplicates; the actual afslog takes place later */
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| 151 | for(p = cell_list, q = &cell_list; p; q = &p->next, p = p->next)
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| 152 | if(strcmp(p->cell, c) == 0)
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| 153 | return 0;
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| 154 | p = malloc(sizeof(*p));
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| 155 | if(p == NULL)
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| 156 | return -1;
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| 157 | p->cell = strdup(c);
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| 158 | if(p->cell == NULL) {
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| 159 | free(p);
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| 160 | return -1;
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| 161 | }
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| 162 | p->next = NULL;
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| 163 | *q = p;
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| 164 | return 0;
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| 165 | }
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| 166 |
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| 167 | static int
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| 168 | afslog_file(const char *path)
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| 169 | {
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| 170 | char cell[64];
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| 171 | if(k_afs_cell_of_file(path, cell, sizeof(cell))){
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| 172 | warnx("No cell found for file \"%s\".", path);
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| 173 | return -1;
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| 174 | }
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| 175 | if(verbose)
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| 176 | warnx("File \"%s\" lives in cell \"%s\"", path, cell);
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| 177 | return afslog_cell(cell, 0);
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| 178 | }
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| 179 |
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| 180 | static int
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| 181 | do_afslog(const char *cell)
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| 182 | {
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| 183 | int k5ret;
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| 184 |
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| 185 | k5ret = 0;
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| 186 |
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| 187 | #ifdef KRB5
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| 188 | if(context != NULL && id != NULL && use_krb5) {
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| 189 | k5ret = krb5_afslog(context, id, cell, realm);
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| 190 | if(k5ret == 0)
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| 191 | return 0;
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| 192 | }
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| 193 | #endif
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| 194 | if (cell == NULL)
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| 195 | cell = "<default cell>";
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| 196 | #ifdef KRB5
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| 197 | if (k5ret)
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| 198 | krb5_warn(context, k5ret, "krb5_afslog(%s)", cell);
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| 199 | #endif
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| 200 | if (k5ret)
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| 201 | return 1;
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| 202 | return 0;
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| 203 | }
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| 204 |
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| 205 | static void
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| 206 | log_func(void *ctx, const char *str)
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| 207 | {
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| 208 | fprintf(stderr, "%s\n", str);
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| 209 | }
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| 210 |
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| 211 | int
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| 212 | main(int argc, char **argv)
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| 213 | {
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| 214 | int optind = 0;
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| 215 | int i;
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| 216 | int num;
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| 217 | int ret = 0;
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| 218 | int failed = 0;
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| 219 | struct cell_list *p;
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| 220 |
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| 221 | setprogname(argv[0]);
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| 222 |
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| 223 | if(getarg(args, num_args, argc, argv, &optind))
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| 224 | usage(1);
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| 225 | if(help_flag)
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| 226 | usage(0);
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| 227 | if(version_flag) {
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| 228 | print_version(NULL);
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| 229 | exit(0);
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| 230 | }
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| 231 |
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| 232 | if(!k_hasafs())
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| 233 | errx(1, "AFS does not seem to be present on this machine");
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| 234 |
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| 235 | if(unlog_flag){
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| 236 | k_unlog();
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| 237 | exit(0);
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| 238 | }
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| 239 | #ifdef KRB5
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| 240 | ret = krb5_init_context(&context);
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| 241 | if (ret) {
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| 242 | context = NULL;
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| 243 | } else {
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| 244 | if (client_string) {
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| 245 | krb5_principal client;
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| 246 |
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| 247 | ret = krb5_parse_name(context, client_string, &client);
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| 248 | if (ret == 0)
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| 249 | ret = krb5_cc_cache_match(context, client, &id);
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| 250 | if (ret)
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| 251 | id = NULL;
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| 252 | }
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| 253 | if (id == NULL && cache_string) {
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| 254 | if(krb5_cc_resolve(context, cache_string, &id) != 0) {
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| 255 | krb5_warnx(context, "failed to open kerberos 5 cache '%s'",
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| 256 | cache_string);
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| 257 | id = NULL;
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| 258 | }
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| 259 | }
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| 260 | if (id == NULL)
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| 261 | if(krb5_cc_default(context, &id) != 0)
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| 262 | id = NULL;
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| 263 | }
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| 264 | #endif
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| 265 |
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| 266 | if (verbose)
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| 267 | kafs_set_verbose(log_func, NULL);
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| 268 |
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| 269 | num = 0;
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| 270 | for(i = 0; i < files.num_strings; i++){
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| 271 | afslog_file(files.strings[i]);
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| 272 | num++;
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| 273 | }
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| 274 | free_getarg_strings (&files);
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| 275 | for(i = 0; i < cells.num_strings; i++){
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| 276 | afslog_cell(cells.strings[i], 1);
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| 277 | num++;
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| 278 | }
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| 279 | free_getarg_strings (&cells);
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| 280 | for(i = optind; i < argc; i++){
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| 281 | num++;
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| 282 | if(strcmp(argv[i], ".") == 0 ||
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| 283 | strcmp(argv[i], "..") == 0 ||
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| 284 | strchr(argv[i], '/') ||
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| 285 | access(argv[i], F_OK) == 0)
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| 286 | afslog_file(argv[i]);
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| 287 | else
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| 288 | afslog_cell(argv[i], 1);
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| 289 | }
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| 290 | if(num == 0) {
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| 291 | if(do_afslog(NULL))
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| 292 | failed++;
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| 293 | } else
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| 294 | for(p = cell_list; p; p = p->next) {
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| 295 | if(verbose)
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| 296 | warnx("Getting tokens for cell \"%s\"", p->cell);
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| 297 | if(do_afslog(p->cell))
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| 298 | failed++;
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| 299 | }
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| 300 |
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| 301 | return failed;
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| 302 | }
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