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9427bcc22e4f044b64e66c5b196d3879f05b996f
heimdal/kuser/klist.c
Love Hornquist Astrand 92a827da9b move klist to kcc
2010-11-24 16:21:44 -08:00

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/*
* Copyright (c) 1997-2008 Kungliga Tekniska Högskolan
* (Royal Institute of Technology, Stockholm, Sweden).
* All rights reserved.
*
* Portions Copyright (c) 2009 Apple Inc. All rights reserved.
*
* Redistribution and use in source and binary forms, with or without
* modification, are permitted provided that the following conditions
* are met:
*
* 1. Redistributions of source code must retain the above copyright
* notice, this list of conditions and the following disclaimer.
*
* 2. Redistributions in binary form must reproduce the above copyright
* notice, this list of conditions and the following disclaimer in the
* documentation and/or other materials provided with the distribution.
*
* 3. Neither the name of the Institute nor the names of its contributors
* may be used to endorse or promote products derived from this software
* without specific prior written permission.
*
* THIS SOFTWARE IS PROVIDED BY THE INSTITUTE AND CONTRIBUTORS ``AS IS'' AND
* ANY EXPRESS OR IMPLIED WARRANTIES, INCLUDING, BUT NOT LIMITED TO, THE
* IMPLIED WARRANTIES OF MERCHANTABILITY AND FITNESS FOR A PARTICULAR PURPOSE
* ARE DISCLAIMED. IN NO EVENT SHALL THE INSTITUTE OR CONTRIBUTORS BE LIABLE
* FOR ANY DIRECT, INDIRECT, INCIDENTAL, SPECIAL, EXEMPLARY, OR CONSEQUENTIAL
* DAMAGES (INCLUDING, BUT NOT LIMITED TO, PROCUREMENT OF SUBSTITUTE GOODS
* OR SERVICES; LOSS OF USE, DATA, OR PROFITS; OR BUSINESS INTERRUPTION)
* HOWEVER CAUSED AND ON ANY THEORY OF LIABILITY, WHETHER IN CONTRACT, STRICT
* LIABILITY, OR TORT (INCLUDING NEGLIGENCE OR OTHERWISE) ARISING IN ANY WAY
* OUT OF THE USE OF THIS SOFTWARE, EVEN IF ADVISED OF THE POSSIBILITY OF
* SUCH DAMAGE.
*/
#include "kuser_locl.h"
#include "rtbl.h"
#include "parse_units.h"
#include "kcc-commands.h"
static char*
printable_time(time_t t)
{
static char s[128];
strlcpy(s, ctime(&t)+ 4, sizeof(s));
s[15] = 0;
return s;
}
static char*
printable_time_long(time_t t)
{
static char s[128];
strlcpy(s, ctime(&t)+ 4, sizeof(s));
s[20] = 0;
return s;
}
#define COL_ISSUED NP_(" Issued","")
#define COL_EXPIRES NP_(" Expires", "")
#define COL_FLAGS NP_("Flags", "")
#define COL_NAME NP_(" Name", "")
#define COL_PRINCIPAL NP_(" Principal", "in klist output")
#define COL_PRINCIPAL_KVNO NP_(" Principal (kvno)", "in klist output")
#define COL_CACHENAME NP_(" Cache name", "name in klist output")
#define COL_DEFCACHE NP_("", "")
static void
print_cred(krb5_context context, krb5_creds *cred, rtbl_t ct, int do_flags)
{
char *str;
krb5_error_code ret;
krb5_timestamp sec;
krb5_timeofday (context, &sec);
if(cred->times.starttime)
rtbl_add_column_entry(ct, COL_ISSUED,
printable_time(cred->times.starttime));
else
rtbl_add_column_entry(ct, COL_ISSUED,
printable_time(cred->times.authtime));
if(cred->times.endtime > sec)
rtbl_add_column_entry(ct, COL_EXPIRES,
printable_time(cred->times.endtime));
else
rtbl_add_column_entry(ct, COL_EXPIRES, N_(">>>Expired<<<", ""));
ret = krb5_unparse_name (context, cred->server, &str);
if (ret)
krb5_err(context, 1, ret, "krb5_unparse_name");
rtbl_add_column_entry(ct, COL_PRINCIPAL, str);
if(do_flags) {
char s[16], *sp = s;
if(cred->flags.b.forwardable)
*sp++ = 'F';
if(cred->flags.b.forwarded)
*sp++ = 'f';
if(cred->flags.b.proxiable)
*sp++ = 'P';
if(cred->flags.b.proxy)
*sp++ = 'p';
if(cred->flags.b.may_postdate)
*sp++ = 'D';
if(cred->flags.b.postdated)
*sp++ = 'd';
if(cred->flags.b.renewable)
*sp++ = 'R';
if(cred->flags.b.initial)
*sp++ = 'I';
if(cred->flags.b.invalid)
*sp++ = 'i';
if(cred->flags.b.pre_authent)
*sp++ = 'A';
if(cred->flags.b.hw_authent)
*sp++ = 'H';
*sp = '\0';
rtbl_add_column_entry(ct, COL_FLAGS, s);
}
free(str);
}
static void
print_cred_verbose(krb5_context context, krb5_creds *cred)
{
int j;
char *str;
krb5_error_code ret;
krb5_timestamp sec;
krb5_timeofday (context, &sec);
ret = krb5_unparse_name(context, cred->server, &str);
if(ret)
exit(1);
printf(N_("Server: %s\n", ""), str);
free (str);
ret = krb5_unparse_name(context, cred->client, &str);
if(ret)
exit(1);
printf(N_("Client: %s\n", ""), str);
free (str);
{
Ticket t;
size_t len;
char *s;
decode_Ticket(cred->ticket.data, cred->ticket.length, &t, &len);
ret = krb5_enctype_to_string(context, t.enc_part.etype, &s);
printf(N_("Ticket etype: ", ""));
if (ret == 0) {
printf("%s", s);
free(s);
} else {
printf(N_("unknown-enctype(%d)", ""), t.enc_part.etype);
}
if(t.enc_part.kvno)
printf(N_(", kvno %d", ""), *t.enc_part.kvno);
printf("\n");
if(cred->session.keytype != t.enc_part.etype) {
ret = krb5_enctype_to_string(context, cred->session.keytype, &str);
if(ret)
krb5_warn(context, ret, "session keytype");
else {
printf(N_("Session key: %s\n", "enctype"), str);
free(str);
}
}
free_Ticket(&t);
printf(N_("Ticket length: %lu\n", ""),
(unsigned long)cred->ticket.length);
}
printf(N_("Auth time: %s\n", ""),
printable_time_long(cred->times.authtime));
if(cred->times.authtime != cred->times.starttime)
printf(N_("Start time: %s\n", ""),
printable_time_long(cred->times.starttime));
printf(N_("End time: %s", ""),
printable_time_long(cred->times.endtime));
if(sec > cred->times.endtime)
printf(N_(" (expired)", ""));
printf("\n");
if(cred->flags.b.renewable)
printf(N_("Renew till: %s\n", ""),
printable_time_long(cred->times.renew_till));
{
char flags[1024];
unparse_flags(TicketFlags2int(cred->flags.b),
asn1_TicketFlags_units(),
flags, sizeof(flags));
printf(N_("Ticket flags: %s\n", ""), flags);
}
printf(N_("Addresses: ", ""));
if (cred->addresses.len != 0) {
for(j = 0; j < cred->addresses.len; j++){
char buf[128];
size_t len;
if(j) printf(", ");
ret = krb5_print_address(&cred->addresses.val[j],
buf, sizeof(buf), &len);
if(ret == 0)
printf("%s", buf);
}
} else {
printf(N_("addressless", ""));
}
printf("\n\n");
}
/*
* Print all tickets in `ccache' on stdout, verbosily iff do_verbose.
*/
static void
print_tickets (krb5_context context,
krb5_ccache ccache,
krb5_principal principal,
int do_verbose,
int do_flags,
int do_hidden)
{
krb5_error_code ret;
char *str, *name;
krb5_cc_cursor cursor;
krb5_creds creds;
krb5_deltat sec;
rtbl_t ct = NULL;
ret = krb5_unparse_name (context, principal, &str);
if (ret)
krb5_err (context, 1, ret, "krb5_unparse_name");
printf ("%17s: %s:%s\n",
N_("Credentials cache", ""),
krb5_cc_get_type(context, ccache),
krb5_cc_get_name(context, ccache));
printf ("%17s: %s\n", N_("Principal", ""), str);
ret = krb5_cc_get_friendly_name(context, ccache, &name);
if (ret == 0) {
if (strcmp(name, str) != 0)
printf ("%17s: %s\n", N_("Friendly name", ""), name);
free(name);
}
free (str);
if(do_verbose) {
printf ("%17s: %d\n", N_("Cache version", ""),
krb5_cc_get_version(context, ccache));
} else {
krb5_cc_set_flags(context, ccache, KRB5_TC_NOTICKET);
}
ret = krb5_cc_get_kdc_offset(context, ccache, &sec);
if (ret == 0 && do_verbose && sec != 0) {
char buf[BUFSIZ];
int val;
int sig;
val = sec;
sig = 1;
if (val < 0) {
sig = -1;
val = -val;
}
unparse_time (val, buf, sizeof(buf));
printf ("%17s: %s%s\n", N_("KDC time offset", ""),
sig == -1 ? "-" : "", buf);
}
printf("\n");
ret = krb5_cc_start_seq_get (context, ccache, &cursor);
if (ret)
krb5_err(context, 1, ret, "krb5_cc_start_seq_get");
if(!do_verbose) {
ct = rtbl_create();
rtbl_add_column(ct, COL_ISSUED, 0);
rtbl_add_column(ct, COL_EXPIRES, 0);
if(do_flags)
rtbl_add_column(ct, COL_FLAGS, 0);
rtbl_add_column(ct, COL_PRINCIPAL, 0);
rtbl_set_separator(ct, " ");
}
while ((ret = krb5_cc_next_cred (context,
ccache,
&cursor,
&creds)) == 0) {
if (!do_hidden && krb5_is_config_principal(context, creds.server)) {
;
}else if(do_verbose){
print_cred_verbose(context, &creds);
}else{
print_cred(context, &creds, ct, do_flags);
}
krb5_free_cred_contents (context, &creds);
}
if(ret != KRB5_CC_END)
krb5_err(context, 1, ret, "krb5_cc_get_next");
ret = krb5_cc_end_seq_get (context, ccache, &cursor);
if (ret)
krb5_err (context, 1, ret, "krb5_cc_end_seq_get");
if(!do_verbose) {
rtbl_format(ct, stdout);
rtbl_destroy(ct);
}
}
/*
* Check if there's a tgt for the realm of `principal' and ccache and
* if so return 0, else 1
*/
static int
check_for_tgt (krb5_context context,
krb5_ccache ccache,
krb5_principal principal,
time_t *expiration)
{
krb5_error_code ret;
krb5_creds pattern;
krb5_creds creds;
krb5_const_realm client_realm;
int expired;
krb5_cc_clear_mcred(&pattern);
client_realm = krb5_principal_get_realm(context, principal);
ret = krb5_make_principal (context, &pattern.server,
client_realm, KRB5_TGS_NAME, client_realm, NULL);
if (ret)
krb5_err (context, 1, ret, "krb5_make_principal");
pattern.client = principal;
ret = krb5_cc_retrieve_cred (context, ccache, 0, &pattern, &creds);
krb5_free_principal (context, pattern.server);
if (ret) {
if (ret == KRB5_CC_END)
return 1;
krb5_err (context, 1, ret, "krb5_cc_retrieve_cred");
}
expired = time(NULL) > creds.times.endtime;
if (expiration)
*expiration = creds.times.endtime;
krb5_free_cred_contents (context, &creds);
return expired;
}
/*
* Print a list of all AFS tokens
*/
#ifndef NO_AFS
static void
display_tokens(int do_verbose)
{
uint32_t i;
unsigned char t[4096];
struct ViceIoctl parms;
parms.in = (void *)&i;
parms.in_size = sizeof(i);
parms.out = (void *)t;
parms.out_size = sizeof(t);
for (i = 0;; i++) {
int32_t size_secret_tok, size_public_tok;
unsigned char *cell;
struct ClearToken ct;
unsigned char *r = t;
struct timeval tv;
char buf1[20], buf2[20];
if(k_pioctl(NULL, VIOCGETTOK, &parms, 0) < 0) {
if(errno == EDOM)
break;
continue;
}
if(parms.out_size > sizeof(t))
continue;
if(parms.out_size < sizeof(size_secret_tok))
continue;
t[min(parms.out_size,sizeof(t)-1)] = 0;
memcpy(&size_secret_tok, r, sizeof(size_secret_tok));
/* dont bother about the secret token */
r += size_secret_tok + sizeof(size_secret_tok);
if (parms.out_size < (r - t) + sizeof(size_public_tok))
continue;
memcpy(&size_public_tok, r, sizeof(size_public_tok));
r += sizeof(size_public_tok);
if (parms.out_size < (r - t) + size_public_tok + sizeof(int32_t))
continue;
memcpy(&ct, r, size_public_tok);
r += size_public_tok;
/* there is a int32_t with length of cellname, but we dont read it */
r += sizeof(int32_t);
cell = r;
gettimeofday (&tv, NULL);
strlcpy (buf1, printable_time(ct.BeginTimestamp),
sizeof(buf1));
if (do_verbose || tv.tv_sec < ct.EndTimestamp)
strlcpy (buf2, printable_time(ct.EndTimestamp),
sizeof(buf2));
else
strlcpy (buf2, N_(">>> Expired <<<", ""), sizeof(buf2));
printf("%s %s ", buf1, buf2);
if ((ct.EndTimestamp - ct.BeginTimestamp) & 1)
printf(N_("User's (AFS ID %d) tokens for %s", ""), ct.ViceId, cell);
else
printf(N_("Tokens for %s", ""), cell);
if (do_verbose)
printf(" (%d)", ct.AuthHandle);
putchar('\n');
}
}
#endif
/*
* display the ccache in `cred_cache'
*/
static int
display_v5_ccache (krb5_context context, krb5_ccache ccache,
int do_test, int do_verbose,
int do_flags, int do_hidden)
{
krb5_error_code ret;
krb5_principal principal;
int exit_status = 0;
ret = krb5_cc_get_principal (context, ccache, &principal);
if (ret) {
if(ret == ENOENT) {
if (!do_test)
krb5_warnx(context, N_("No ticket file: %s", ""),
krb5_cc_get_name(context, ccache));
return 1;
} else
krb5_err (context, 1, ret, "krb5_cc_get_principal");
}
if (do_test)
exit_status = check_for_tgt (context, ccache, principal, NULL);
else
print_tickets (context, ccache, principal, do_verbose,
do_flags, do_hidden);
ret = krb5_cc_close (context, ccache);
if (ret)
krb5_err (context, 1, ret, "krb5_cc_close");
krb5_free_principal (context, principal);
return exit_status;
}
/*
*
*/
static int
list_caches(krb5_context context)
{
krb5_cc_cache_cursor cursor;
const char *cdef_name;
char *def_name;
krb5_error_code ret;
krb5_ccache id;
rtbl_t ct;
cdef_name = krb5_cc_default_name(context);
if (cdef_name == NULL)
krb5_errx(context, 1, "krb5_cc_default_name");
def_name = strdup(cdef_name);
ret = krb5_cc_cache_get_first (context, NULL, &cursor);
if (ret == KRB5_CC_NOSUPP)
return 0;
else if (ret)
krb5_err (context, 1, ret, "krb5_cc_cache_get_first");
ct = rtbl_create();
rtbl_add_column(ct, COL_NAME, 0);
rtbl_add_column(ct, COL_CACHENAME, 0);
rtbl_add_column(ct, COL_EXPIRES, 0);
rtbl_add_column(ct, COL_DEFCACHE, 0);
rtbl_set_prefix(ct, " ");
rtbl_set_column_prefix(ct, COL_NAME, "");
while (krb5_cc_cache_next (context, cursor, &id) == 0) {
krb5_principal principal = NULL;
int expired = 0;
char *name;
time_t t;
ret = krb5_cc_get_principal(context, id, &principal);
if (ret)
continue;
expired = check_for_tgt (context, id, principal, &t);
ret = krb5_cc_get_friendly_name(context, id, &name);
if (ret == 0) {
const char *str;
char *fname;
rtbl_add_column_entry(ct, COL_NAME, name);
rtbl_add_column_entry(ct, COL_CACHENAME,
krb5_cc_get_name(context, id));
if (expired)
str = N_(">>> Expired <<<", "");
else
str = printable_time(t);
rtbl_add_column_entry(ct, COL_EXPIRES, str);
free(name);
ret = krb5_cc_get_full_name(context, id, &fname);
if (ret)
krb5_err (context, 1, ret, "krb5_cc_get_full_name");
if (strcmp(fname, def_name) == 0)
rtbl_add_column_entry(ct, COL_DEFCACHE, "*");
else
rtbl_add_column_entry(ct, COL_DEFCACHE, "");
krb5_xfree(fname);
}
krb5_cc_close(context, id);
krb5_free_principal(context, principal);
}
krb5_cc_cache_end_seq_get(context, cursor);
free(def_name);
rtbl_format(ct, stdout);
rtbl_destroy(ct);
return 0;
}
/*
*
*/
int
klist(struct klist_options *opt, int argc, char **argv)
{
krb5_error_code ret;
int exit_status = 0;
int do_verbose =
opt->verbose_flag ||
opt->a_flag ||
opt->n_flag;
int do_test =
opt->test_flag ||
opt->s_flag;
if (opt->list_all_flag) {
exit_status = list_caches(kcc_context);
return exit_status;
}
if (opt->v5_flag) {
krb5_ccache id;
if (opt->all_content_flag) {
krb5_cc_cache_cursor cursor;
ret = krb5_cc_cache_get_first(kcc_context, NULL, &cursor);
if (ret)
krb5_err(kcc_context, 1, ret, "krb5_cc_cache_get_first");
while (krb5_cc_cache_next(kcc_context, cursor, &id) == 0) {
exit_status |= display_v5_ccache(kcc_context, id, do_test,
do_verbose, opt->flags_flag,
opt->hidden_flag);
printf("\n\n");
}
krb5_cc_cache_end_seq_get(kcc_context, cursor);
} else {
if(opt->cache_string) {
ret = krb5_cc_resolve(kcc_context, opt->cache_string, &id);
if (ret)
krb5_err(kcc_context, 1, ret, "%s", opt->cache_string);
} else {
ret = krb5_cc_default(kcc_context, &id);
if (ret)
krb5_err(kcc_context, 1, ret, "krb5_cc_resolve");
}
exit_status = display_v5_ccache(kcc_context, id, do_test,
do_verbose, opt->flags_flag,
opt->hidden_flag);
}
}
if (!do_test) {
#ifndef NO_AFS
if (opt->tokens_flag && k_hasafs()) {
if (opt->v5_flag)
printf("\n");
display_tokens(opt->verbose_flag);
}
#endif
}
return exit_status;
}
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