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/*
* The client program for the wallet system.
*
* Written by Russ Allbery <rra@stanford.edu>
* Copyright 2006, 2007, 2008, 2010
* Board of Trustees, Leland Stanford Jr. University
*
* See LICENSE for licensing terms.
*/
#include <config.h>
#include <portable/krb5.h>
#include <portable/system.h>
#include <portable/uio.h>
#include <errno.h>
#include <remctl.h>
#include <client/internal.h>
#include <util/messages-krb5.h>
#include <util/messages.h>
#include <util/xmalloc.h>
/*
* Usage message. Use as a format and pass the port number and default server
* name.
*/
static const char usage_message[] = "\
Usage: wallet [options] <command> <type> <name> [<arg> ...]\n\
wallet [options] acl <command> <id> [<arg> ...]\n\
\n\
Options:\n\
-c <command> Command prefix to use (default: wallet)\n\
-f <output> For the get command, output file (default: stdout)\n\
-k <principal> Kerberos principal of the server\n\
-h Display this help\n\
-p <port> Port of server (default: %d, if zero, remctl default)\n\
-S <srvtab> For the get keytab command, srvtab output file\n\
-s <server> Server hostname (default: %s)\n\
-u <user> Authenticate as <user> before running command\n\
-v Display the version of wallet\n";
/*
* Display the usage message for wallet.
*/
static void
usage(int status)
{
fprintf((status == 0) ? stdout : stderr, usage_message, WALLET_PORT,
(WALLET_SERVER == NULL) ? "<none>" : WALLET_SERVER);
exit(status);
}
/*
* Main routine. Parse the arguments and then perform the desired operation.
*/
int
main(int argc, char *argv[])
{
krb5_context ctx;
krb5_error_code retval;
struct options options;
int option, i, status;
struct iovec *command;
size_t count, length;
const char *file = NULL;
const char *srvtab = NULL;
struct remctl *r;
long tmp;
char *end;
/* Set up logging and identity. */
message_program_name = "wallet";
/* Initialize default configuration. */
retval = krb5_init_context(&ctx);
if (retval != 0)
die_krb5(ctx, retval, "cannot initialize Kerberos");
default_options(ctx, &options);
while ((option = getopt(argc, argv, "c:f:k:hp:S:s:u:v")) != EOF) {
switch (option) {
case 'c':
options.type = optarg;
break;
case 'f':
file = optarg;
break;
case 'k':
options.principal = optarg;
break;
case 'h':
usage(0);
break;
case 'p':
errno = 0;
tmp = strtol(optarg, &end, 10);
if (tmp <= 0 || tmp > 65535 || *end != '\0')
die("invalid port number %s", optarg);
options.port = tmp;
break;
case 'S':
srvtab = optarg;
break;
case 's':
options.server = optarg;
break;
case 'u':
options.user = optarg;
break;
case 'v':
printf("%s\n", PACKAGE_STRING);
exit(0);
break;
default:
usage(1);
break;
}
}
argc -= optind;
argv += optind;
if (argc < 3)
usage(1);
/* -f is only supported for get and store and -S with get keytab. */
if (file != NULL)
if (strcmp(argv[0], "get") != 0 && strcmp(argv[0], "store") != 0)
die("-f only supported for get and store");
if (srvtab != NULL) {
if (strcmp(argv[0], "get") != 0 || strcmp(argv[1], "keytab") != 0)
die("-S only supported for get keytab");
if (file == NULL)
die("-S option requires -f also be used");
}
/*
* If no server was set at configure time and none was set on the command
* line or with krb5.conf settings, we can't continue.
*/
if (options.server == NULL)
die("no server specified in krb5.conf or with -s");
/* If a user was specified, obtain Kerberos tickets. */
if (options.user != NULL)
kinit(ctx, options.user);
/* Open a remctl connection. */
r = remctl_new();
if (r == NULL)
sysdie("cannot allocate memory");
if (!remctl_open(r, options.server, options.port, options.principal))
die("%s", remctl_error(r));
/*
* Most commands, we handle ourselves, but get and store commands are
* special and keytab get commands with -f are doubly special.
*/
if (strcmp(argv[0], "get") == 0 || strcmp(argv[0], "store") == 0) {
if (!object_exists(r, options.type, argv[1], argv[2]))
object_autocreate(r, options.type, argv[1], argv[2]);
}
if (strcmp(argv[0], "get") == 0) {
if (argc > 3)
die("too many arguments");
if (strcmp(argv[1], "keytab") == 0 && file != NULL) {
status = get_keytab(r, ctx, options.type, argv[2], file, srvtab);
} else {
status = get_file(r, options.type, argv[1], argv[2], file);
}
} else if (strcmp(argv[0], "rekey") == 0) {
if (argc > 2)
die("too many arguments");
status = rekey_keytab(r, ctx, options.type, argv[1]);
} else {
count = argc + 1;
if (strcmp(argv[0], "store") == 0) {
if (argc > 4)
die("too many arguments");
else if (argc < 4)
count++;
}
command = xmalloc(sizeof(struct iovec) * count);
command[0].iov_base = (char *) options.type;
command[0].iov_len = strlen(options.type);
for (i = 0; i < argc; i++) {
command[i + 1].iov_base = argv[i];
command[i + 1].iov_len = strlen(argv[i]);
}
if (strcmp(argv[0], "store") == 0 && argc < 4) {
if (file == NULL)
file = "-";
command[argc + 1].iov_base = read_file(file, &length);
command[argc + 1].iov_len = length;
}
status = run_commandv(r, command, count, NULL, NULL);
}
remctl_close(r);
krb5_free_context(ctx);
if (options.user != NULL)
kdestroy();
exit(status);
}
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