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-rw-r--r--crypto/heimdal/kadmin/util.c520
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diff --git a/crypto/heimdal/kadmin/util.c b/crypto/heimdal/kadmin/util.c
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+/*
+ * Copyright (c) 1997, 1998, 1999 Kungliga Tekniska Högskolan
+ * (Royal Institute of Technology, Stockholm, Sweden).
+ * 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 "kadmin_locl.h"
+#include <parse_units.h>
+
+RCSID("$Id: util.c,v 1.23 1999/12/02 17:04:58 joda Exp $");
+
+/*
+ * util.c - functions for parsing, unparsing, and editing different
+ * types of data used in kadmin.
+ */
+
+/*
+ * attributes
+ */
+
+struct units kdb_attrs[] = {
+ { "new-princ", KRB5_KDB_NEW_PRINC },
+ { "support-desmd5", KRB5_KDB_SUPPORT_DESMD5 },
+ { "pwchange-service", KRB5_KDB_PWCHANGE_SERVICE },
+ { "disallow-svr", KRB5_KDB_DISALLOW_SVR },
+ { "requires-pw-change", KRB5_KDB_REQUIRES_PWCHANGE },
+ { "requires-hw-auth", KRB5_KDB_REQUIRES_HW_AUTH },
+ { "requires-pre-auth", KRB5_KDB_REQUIRES_PRE_AUTH },
+ { "disallow-all-tix", KRB5_KDB_DISALLOW_ALL_TIX },
+ { "disallow-dup-skey", KRB5_KDB_DISALLOW_DUP_SKEY },
+ { "disallow-proxiable", KRB5_KDB_DISALLOW_PROXIABLE },
+ { "disallow-renewable", KRB5_KDB_DISALLOW_RENEWABLE },
+ { "disallow-tgt-based", KRB5_KDB_DISALLOW_TGT_BASED },
+ { "disallow-forwardable", KRB5_KDB_DISALLOW_FORWARDABLE },
+ { "disallow-postdated", KRB5_KDB_DISALLOW_POSTDATED },
+ { NULL }
+};
+
+/*
+ * convert the attributes in `attributes' into a printable string
+ * in `str, len'
+ */
+
+void
+attributes2str(krb5_flags attributes, char *str, size_t len)
+{
+ unparse_flags (attributes, kdb_attrs, str, len);
+}
+
+/*
+ * convert the string in `str' into attributes in `flags'
+ * return 0 if parsed ok, else -1.
+ */
+
+int
+str2attributes(const char *str, krb5_flags *flags)
+{
+ int res;
+
+ res = parse_flags (str, kdb_attrs, *flags);
+ if (res < 0)
+ return res;
+ else {
+ *flags = res;
+ return 0;
+ }
+}
+
+/*
+ * try to parse the string `resp' into attributes in `attr', also
+ * setting the `bit' in `mask' if attributes are given and valid.
+ */
+
+int
+parse_attributes (const char *resp, krb5_flags *attr, int *mask, int bit)
+{
+ krb5_flags tmp = *attr;
+
+ if (resp[0] == '\0')
+ return 0;
+ else if (str2attributes(resp, &tmp) == 0) {
+ *attr = tmp;
+ if (mask)
+ *mask |= bit;
+ return 0;
+ } else if(*resp == '?') {
+ print_flags_table (kdb_attrs, stderr);
+ } else {
+ fprintf (stderr, "Unable to parse '%s'\n", resp);
+ }
+ return -1;
+}
+
+/*
+ * allow the user to edit the attributes in `attr', prompting with `prompt'
+ */
+
+int
+edit_attributes (const char *prompt, krb5_flags *attr, int *mask, int bit)
+{
+ char buf[1024], resp[1024];
+
+ if (mask && (*mask & bit))
+ return 0;
+
+ attributes2str(*attr, buf, sizeof(buf));
+ for (;;) {
+ get_response("Attributes", buf, resp, sizeof(resp));
+ if (parse_attributes (resp, attr, mask, bit) == 0)
+ break;
+ }
+ return 0;
+}
+
+/*
+ * time_t
+ * the special value 0 means ``never''
+ */
+
+/*
+ * Convert the time `t' to a string representation in `str' (of max
+ * size `len'). If include_time also include time, otherwise just
+ * date.
+ */
+
+void
+time_t2str(time_t t, char *str, size_t len, int include_time)
+{
+ if(t) {
+ if(include_time)
+ strftime(str, len, "%Y-%m-%d %H:%M:%S UTC", gmtime(&t));
+ else
+ strftime(str, len, "%Y-%m-%d", gmtime(&t));
+ } else
+ snprintf(str, len, "never");
+}
+
+/*
+ * Convert the time representation in `str' to a time in `time'.
+ * Return 0 if succesful, else -1.
+ */
+
+int
+str2time_t (const char *str, time_t *time)
+{
+ const char *p;
+ struct tm tm;
+
+ memset (&tm, 0, sizeof (tm));
+
+ if(strcasecmp(str, "never") == 0) {
+ *time = 0;
+ return 0;
+ }
+
+ p = strptime (str, "%Y-%m-%d", &tm);
+
+ if (p == NULL)
+ return -1;
+
+ /* Do it on the end of the day */
+ tm.tm_hour = 23;
+ tm.tm_min = 59;
+ tm.tm_sec = 59;
+
+ strptime (p, "%H:%M:%S", &tm);
+
+ *time = tm2time (tm, 0);
+ return 0;
+}
+
+/*
+ * try to parse the time in `resp' storing it in `value'
+ */
+
+int
+parse_timet (const char *resp, krb5_timestamp *value, int *mask, int bit)
+{
+ time_t tmp;
+
+ if (str2time_t(resp, &tmp) == 0) {
+ *value = tmp;
+ if(mask)
+ *mask |= bit;
+ return 0;
+ } else if(*resp == '?') {
+ printf ("Print date on format YYYY-mm-dd [hh:mm:ss]\n");
+ } else {
+ fprintf (stderr, "Unable to parse time '%s'\n", resp);
+ }
+ return -1;
+}
+
+/*
+ * allow the user to edit the time in `value'
+ */
+
+int
+edit_timet (const char *prompt, krb5_timestamp *value, int *mask, int bit)
+{
+ char buf[1024], resp[1024];
+
+ if (mask && (*mask & bit))
+ return 0;
+
+ time_t2str (*value, buf, sizeof (buf), 0);
+
+ for (;;) {
+ get_response(prompt, buf, resp, sizeof(resp));
+ if (parse_timet (resp, value, mask, bit) == 0)
+ break;
+ }
+ return 0;
+}
+
+/*
+ * deltat
+ * the special value 0 means ``unlimited''
+ */
+
+/*
+ * convert the delta_t value in `t' into a printable form in `str, len'
+ */
+
+void
+deltat2str(unsigned t, char *str, size_t len)
+{
+ if(t)
+ unparse_time(t, str, len);
+ else
+ snprintf(str, len, "unlimited");
+}
+
+/*
+ * parse the delta value in `str', storing result in `*delta'
+ * return 0 if ok, else -1
+ */
+
+int
+str2deltat(const char *str, krb5_deltat *delta)
+{
+ int res;
+
+ if(strcasecmp(str, "unlimited") == 0) {
+ *delta = 0;
+ return 0;
+ }
+ res = parse_time(str, "day");
+ if (res < 0)
+ return res;
+ else {
+ *delta = res;
+ return 0;
+ }
+}
+
+/*
+ * try to parse the string in `resp' into a deltad in `value'
+ * `mask' will get the bit `bit' set if a value was given.
+ */
+
+int
+parse_deltat (const char *resp, krb5_deltat *value, int *mask, int bit)
+{
+ krb5_deltat tmp;
+
+ if (str2deltat(resp, &tmp) == 0) {
+ *value = tmp;
+ if (mask)
+ *mask |= bit;
+ return 0;
+ } else if(*resp == '?') {
+ print_time_table (stderr);
+ } else {
+ fprintf (stderr, "Unable to parse time '%s'\n", resp);
+ }
+ return -1;
+}
+
+/*
+ * allow the user to edit the deltat in `value'
+ */
+
+int
+edit_deltat (const char *prompt, krb5_deltat *value, int *mask, int bit)
+{
+ char buf[1024], resp[1024];
+
+ if (mask && (*mask & bit))
+ return 0;
+
+ deltat2str(*value, buf, sizeof(buf));
+ for (;;) {
+ get_response(prompt, buf, resp, sizeof(resp));
+ if (parse_deltat (resp, value, mask, bit) == 0)
+ break;
+ }
+ return 0;
+}
+
+/*
+ * allow the user to edit `ent'
+ */
+
+int
+edit_entry(kadm5_principal_ent_t ent, int *mask,
+ kadm5_principal_ent_t default_ent, int default_mask)
+{
+ if (default_ent && (default_mask & KADM5_MAX_LIFE))
+ ent->max_life = default_ent->max_life;
+ edit_deltat ("Max ticket life", &ent->max_life, mask,
+ KADM5_MAX_LIFE);
+
+ if (default_ent && (default_mask & KADM5_MAX_RLIFE))
+ ent->max_renewable_life = default_ent->max_renewable_life;
+ edit_deltat ("Max renewable life", &ent->max_renewable_life, mask,
+ KADM5_MAX_RLIFE);
+
+ if (default_ent && (default_mask & KADM5_PRINC_EXPIRE_TIME))
+ ent->princ_expire_time = default_ent->princ_expire_time;
+ edit_timet ("Principal expiration time", &ent->princ_expire_time, mask,
+ KADM5_PRINC_EXPIRE_TIME);
+
+ if (default_ent && (default_mask & KADM5_PW_EXPIRATION))
+ ent->pw_expiration = default_ent->pw_expiration;
+ edit_timet ("Password expiration time", &ent->pw_expiration, mask,
+ KADM5_PW_EXPIRATION);
+
+ if (default_ent && (default_mask & KADM5_ATTRIBUTES))
+ ent->attributes = default_ent->attributes & ~KRB5_KDB_DISALLOW_ALL_TIX;
+ edit_attributes ("Attributes", &ent->attributes, mask,
+ KADM5_ATTRIBUTES);
+ return 0;
+}
+
+/*
+ * Parse the arguments, set the fields in `ent' and the `mask' for the
+ * entries having been set.
+ * Return 1 on failure and 0 on success.
+ */
+
+int
+set_entry(krb5_context context,
+ kadm5_principal_ent_t ent,
+ int *mask,
+ const char *max_ticket_life,
+ const char *max_renewable_life,
+ const char *expiration,
+ const char *pw_expiration,
+ const char *attributes)
+{
+ if (max_ticket_life != NULL) {
+ if (parse_deltat (max_ticket_life, &ent->max_life,
+ mask, KADM5_MAX_LIFE)) {
+ krb5_warnx (context, "unable to parse `%s'", max_ticket_life);
+ return 1;
+ }
+ }
+ if (max_renewable_life != NULL) {
+ if (parse_deltat (max_renewable_life, &ent->max_renewable_life,
+ mask, KADM5_MAX_RLIFE)) {
+ krb5_warnx (context, "unable to parse `%s'", max_renewable_life);
+ return 1;
+ }
+ }
+
+ if (expiration) {
+ if (parse_timet (expiration, &ent->princ_expire_time,
+ mask, KADM5_PRINC_EXPIRE_TIME)) {
+ krb5_warnx (context, "unable to parse `%s'", expiration);
+ return 1;
+ }
+ }
+ if (pw_expiration) {
+ if (parse_timet (pw_expiration, &ent->pw_expiration,
+ mask, KADM5_PW_EXPIRATION)) {
+ krb5_warnx (context, "unable to parse `%s'", pw_expiration);
+ return 1;
+ }
+ }
+ if (attributes != NULL) {
+ if (parse_attributes (attributes, &ent->attributes,
+ mask, KADM5_ATTRIBUTES)) {
+ krb5_warnx (context, "unable to parse `%s'", attributes);
+ return 1;
+ }
+ }
+ return 0;
+}
+
+/*
+ * Does `string' contain any globing characters?
+ */
+
+static int
+is_expression(const char *string)
+{
+ const char *p;
+ int quote = 0;
+
+ for(p = string; *p; p++) {
+ if(quote) {
+ quote = 0;
+ continue;
+ }
+ if(*p == '\\')
+ quote++;
+ else if(strchr("[]*?", *p) != NULL)
+ return 1;
+ }
+ return 0;
+}
+
+/* loop over all principals matching exp */
+int
+foreach_principal(const char *exp,
+ int (*func)(krb5_principal, void*),
+ void *data)
+{
+ char **princs;
+ int num_princs;
+ int i;
+ krb5_error_code ret;
+ krb5_principal princ_ent;
+ int is_expr;
+
+ /* if this isn't an expression, there is no point in wading
+ through the whole database looking for matches */
+ is_expr = is_expression(exp);
+ if(is_expr)
+ ret = kadm5_get_principals(kadm_handle, exp, &princs, &num_princs);
+ if(!is_expr || ret == KADM5_AUTH_LIST) {
+ /* we might be able to perform the requested opreration even
+ if we're not allowed to list principals */
+ num_princs = 1;
+ princs = malloc(sizeof(*princs));
+ if(princs == NULL)
+ return ENOMEM;
+ princs[0] = strdup(exp);
+ if(princs[0] == NULL){
+ free(princs);
+ return ENOMEM;
+ }
+ } else if(ret) {
+ krb5_warn(context, ret, "kadm5_get_principals");
+ return ret;
+ }
+ for(i = 0; i < num_princs; i++) {
+ ret = krb5_parse_name(context, princs[i], &princ_ent);
+ if(ret){
+ krb5_warn(context, ret, "krb5_parse_name(%s)", princs[i]);
+ continue;
+ }
+ ret = (*func)(princ_ent, data);
+ if(ret) {
+ char *tmp;
+ krb5_error_code ret2;
+
+ ret2 = krb5_unparse_name(context, princ_ent, &tmp);
+ if(ret2) {
+ krb5_warn(context, ret2, "krb5_unparse_name");
+ krb5_warn(context, ret, "<unknown principal>");
+ } else {
+ krb5_warn(context, ret, "%s", tmp);
+ free(tmp);
+ }
+ }
+ krb5_free_principal(context, princ_ent);
+ }
+ kadm5_free_name_list(kadm_handle, princs, &num_princs);
+ return 0;
+}
+
+/*
+ * prompt with `prompt' and default value `def', and store the reply
+ * in `buf, len'
+ */
+
+void
+get_response(const char *prompt, const char *def, char *buf, size_t len)
+{
+ char *p;
+
+ printf("%s [%s]:", prompt, def);
+ if(fgets(buf, len, stdin) == NULL)
+ *buf = '\0';
+ p = strchr(buf, '\n');
+ if(p)
+ *p = '\0';
+ if(strcmp(buf, "") == 0)
+ strncpy(buf, def, len);
+ buf[len-1] = 0;
+}
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