static kadm5_ret_t
kadmind_dispatch(void *kadm_handle, krb5_boolean initial,
krb5_data *in, krb5_data *out)
{
kadm5_ret_t ret;
int32_t cmd, mask, tmp;
kadm5_server_context *context = kadm_handle;
char client[128], name[128], name2[128];
char *op = "";
krb5_principal princ, princ2;
kadm5_principal_ent_rec ent;
char *password, *expression;
krb5_keyblock *new_keys;
int n_keys;
char **princs;
int n_princs;
krb5_storage *sp;
krb5_unparse_name_fixed(context->context, context->caller,
client, sizeof(client));
sp = krb5_storage_from_data(in);
if (sp == NULL)
krb5_errx(context->context, 1, "out of memory");
krb5_ret_int32(sp, &cmd);
switch(cmd){
case kadm_get:{
op = "GET";
ret = krb5_ret_principal(sp, &princ);
if(ret)
goto fail;
ret = krb5_ret_int32(sp, &mask);
if(ret){
krb5_free_principal(context->context, princ);
goto fail;
}
mask |= KADM5_PRINCIPAL;
krb5_unparse_name_fixed(context->context, princ, name, sizeof(name));
krb5_warnx(context->context, "%s: %s %s", client, op, name);
ret = _kadm5_acl_check_permission(context, KADM5_PRIV_GET, princ);
if(ret){
krb5_free_principal(context->context, princ);
goto fail;
}
ret = kadm5_get_principal(kadm_handle, princ, &ent, mask);
krb5_storage_free(sp);
sp = krb5_storage_emem();
krb5_store_int32(sp, ret);
if(ret == 0){
kadm5_store_principal_ent(sp, &ent);
kadm5_free_principal_ent(kadm_handle, &ent);
}
krb5_free_principal(context->context, princ);
break;
}
case kadm_delete:{
op = "DELETE";
ret = krb5_ret_principal(sp, &princ);
if(ret)
goto fail;
krb5_unparse_name_fixed(context->context, princ, name, sizeof(name));
krb5_warnx(context->context, "%s: %s %s", client, op, name);
ret = _kadm5_acl_check_permission(context, KADM5_PRIV_DELETE, princ);
if(ret){
krb5_free_principal(context->context, princ);
goto fail;
}
ret = kadm5_delete_principal(kadm_handle, princ);
krb5_free_principal(context->context, princ);
krb5_storage_free(sp);
sp = krb5_storage_emem();
krb5_store_int32(sp, ret);
break;
}
case kadm_create:{
op = "CREATE";
ret = kadm5_ret_principal_ent(sp, &ent);
if(ret)
goto fail;
ret = krb5_ret_int32(sp, &mask);
if(ret){
kadm5_free_principal_ent(context->context, &ent);
goto fail;
}
ret = krb5_ret_string(sp, &password);
if(ret){
kadm5_free_principal_ent(context->context, &ent);
goto fail;
}
krb5_unparse_name_fixed(context->context, ent.principal,
name, sizeof(name));
krb5_warnx(context->context, "%s: %s %s", client, op, name);
ret = _kadm5_acl_check_permission(context, KADM5_PRIV_ADD,
ent.principal);
if(ret){
kadm5_free_principal_ent(context->context, &ent);
memset(password, 0, strlen(password));
free(password);
goto fail;
}
ret = kadm5_create_principal(kadm_handle, &ent,
mask, password);
kadm5_free_principal_ent(kadm_handle, &ent);
memset(password, 0, strlen(password));
free(password);
krb5_storage_free(sp);
sp = krb5_storage_emem();
krb5_store_int32(sp, ret);
break;
}
case kadm_modify:{
op = "MODIFY";
ret = kadm5_ret_principal_ent(sp, &ent);
if(ret)
goto fail;
ret = krb5_ret_int32(sp, &mask);
if(ret){
kadm5_free_principal_ent(context, &ent);
goto fail;
}
krb5_unparse_name_fixed(context->context, ent.principal,
name, sizeof(name));
krb5_warnx(context->context, "%s: %s %s", client, op, name);
ret = _kadm5_acl_check_permission(context, KADM5_PRIV_MODIFY,
ent.principal);
if(ret){
kadm5_free_principal_ent(context, &ent);
goto fail;
}
ret = kadm5_modify_principal(kadm_handle, &ent, mask);
kadm5_free_principal_ent(kadm_handle, &ent);
krb5_storage_free(sp);
sp = krb5_storage_emem();
krb5_store_int32(sp, ret);
break;
}
case kadm_rename:{
op = "RENAME";
ret = krb5_ret_principal(sp, &princ);
if(ret)
goto fail;
ret = krb5_ret_principal(sp, &princ2);
if(ret){
krb5_free_principal(context->context, princ);
goto fail;
}
krb5_unparse_name_fixed(context->context, princ, name, sizeof(name));
krb5_unparse_name_fixed(context->context, princ2, name2, sizeof(name2));
krb5_warnx(context->context, "%s: %s %s -> %s",
client, op, name, name2);
ret = _kadm5_acl_check_permission(context,
KADM5_PRIV_ADD,
princ2)
|| _kadm5_acl_check_permission(context,
KADM5_PRIV_DELETE,
princ);
if(ret){
krb5_free_principal(context->context, princ);
krb5_free_principal(context->context, princ2);
goto fail;
}
ret = kadm5_rename_principal(kadm_handle, princ, princ2);
krb5_free_principal(context->context, princ);
krb5_free_principal(context->context, princ2);
krb5_storage_free(sp);
sp = krb5_storage_emem();
krb5_store_int32(sp, ret);
break;
}
case kadm_chpass:{
op = "CHPASS";
ret = krb5_ret_principal(sp, &princ);
if(ret)
goto fail;
ret = krb5_ret_string(sp, &password);
if(ret){
krb5_free_principal(context->context, princ);
goto fail;
}
krb5_unparse_name_fixed(context->context, princ, name, sizeof(name));
krb5_warnx(context->context, "%s: %s %s", client, op, name);
/*
* The change is allowed if at least one of:
* a) it's for the principal him/herself and this was an
* initial ticket, but then, check with the password quality
* function.
* b) the user is on the CPW ACL.
*/
if (initial
&& krb5_principal_compare (context->context, context->caller,
princ))
{
krb5_data pwd_data;
const char *pwd_reason;
pwd_data.data = password;
pwd_data.length = strlen(password);
pwd_reason = kadm5_check_password_quality (context->context,
princ, &pwd_data);
if (pwd_reason != NULL)
ret = KADM5_PASS_Q_DICT;
else
ret = 0;
} else
ret = _kadm5_acl_check_permission(context, KADM5_PRIV_CPW, princ);
if(ret) {
krb5_free_principal(context->context, princ);
memset(password, 0, strlen(password));
free(password);
goto fail;
}
ret = kadm5_chpass_principal(kadm_handle, princ, password);
krb5_free_principal(context->context, princ);
memset(password, 0, strlen(password));
free(password);
krb5_storage_free(sp);
sp = krb5_storage_emem();
krb5_store_int32(sp, ret);
break;
}
case kadm_chpass_with_key:{
int i;
krb5_key_data *key_data;
int n_key_data;
op = "CHPASS_WITH_KEY";
ret = krb5_ret_principal(sp, &princ);
if(ret)
goto fail;
ret = krb5_ret_int32(sp, &n_key_data);
if (ret) {
krb5_free_principal(context->context, princ);
goto fail;
}
/* n_key_data will be squeezed into an int16_t below. */
if (n_key_data < 0 || n_key_data >= 1 << 16 ||
n_key_data > UINT_MAX/sizeof(*key_data)) {
ret = ERANGE;
krb5_free_principal(context->context, princ);
goto fail;
}
key_data = malloc (n_key_data * sizeof(*key_data));
if (key_data == NULL && n_key_data != 0) {
ret = ENOMEM;
krb5_free_principal(context->context, princ);
goto fail;
}
for (i = 0; i < n_key_data; ++i) {
ret = kadm5_ret_key_data (sp, &key_data[i]);
if (ret) {
int16_t dummy = i;
kadm5_free_key_data (context, &dummy, key_data);
free (key_data);
krb5_free_principal(context->context, princ);
goto fail;
}
}
krb5_unparse_name_fixed(context->context, princ, name, sizeof(name));
krb5_warnx(context->context, "%s: %s %s", client, op, name);
/*
* The change is only allowed if the user is on the CPW ACL,
* this it to force password quality check on the user.
*/
ret = _kadm5_acl_check_permission(context, KADM5_PRIV_CPW, princ);
if(ret) {
int16_t dummy = n_key_data;
kadm5_free_key_data (context, &dummy, key_data);
free (key_data);
krb5_free_principal(context->context, princ);
goto fail;
}
ret = kadm5_chpass_principal_with_key(kadm_handle, princ,
n_key_data, key_data);
{
int16_t dummy = n_key_data;
kadm5_free_key_data (context, &dummy, key_data);
}
free (key_data);
krb5_free_principal(context->context, princ);
krb5_storage_free(sp);
sp = krb5_storage_emem();
krb5_store_int32(sp, ret);
break;
}
case kadm_randkey:{
op = "RANDKEY";
ret = krb5_ret_principal(sp, &princ);
if(ret)
goto fail;
krb5_unparse_name_fixed(context->context, princ, name, sizeof(name));
krb5_warnx(context->context, "%s: %s %s", client, op, name);
/*
* The change is allowed if at least one of:
* a) it's for the principal him/herself and this was an initial ticket
* b) the user is on the CPW ACL.
*/
if (initial
&& krb5_principal_compare (context->context, context->caller,
princ))
ret = 0;
else
ret = _kadm5_acl_check_permission(context, KADM5_PRIV_CPW, princ);
if(ret) {
krb5_free_principal(context->context, princ);
goto fail;
}
ret = kadm5_randkey_principal(kadm_handle, princ,
&new_keys, &n_keys);
krb5_free_principal(context->context, princ);
krb5_storage_free(sp);
sp = krb5_storage_emem();
krb5_store_int32(sp, ret);
if(ret == 0){
int i;
krb5_store_int32(sp, n_keys);
for(i = 0; i < n_keys; i++){
krb5_store_keyblock(sp, new_keys[i]);
krb5_free_keyblock_contents(context->context, &new_keys[i]);
}
free(new_keys);
}
break;
}
case kadm_get_privs:{
uint32_t privs;
ret = kadm5_get_privs(kadm_handle, &privs);
krb5_storage_free(sp);
sp = krb5_storage_emem();
krb5_store_int32(sp, ret);
if(ret == 0)
krb5_store_uint32(sp, privs);
break;
}
case kadm_get_princs:{
op = "LIST";
ret = krb5_ret_int32(sp, &tmp);
if(ret)
goto fail;
if(tmp){
ret = krb5_ret_string(sp, &expression);
if(ret)
goto fail;
}else
expression = NULL;
krb5_warnx(context->context, "%s: %s %s", client, op,
expression ? expression : "*");
ret = _kadm5_acl_check_permission(context, KADM5_PRIV_LIST, NULL);
if(ret){
free(expression);
goto fail;
}
ret = kadm5_get_principals(kadm_handle, expression, &princs, &n_princs);
free(expression);
krb5_storage_free(sp);
sp = krb5_storage_emem();
krb5_store_int32(sp, ret);
if(ret == 0){
int i;
krb5_store_int32(sp, n_princs);
for(i = 0; i < n_princs; i++)
krb5_store_string(sp, princs[i]);
kadm5_free_name_list(kadm_handle, princs, &n_princs);
}
break;
}
default:
krb5_warnx(context->context, "%s: UNKNOWN OP %d", client, cmd);
krb5_storage_free(sp);
sp = krb5_storage_emem();
krb5_store_int32(sp, KADM5_FAILURE);
break;
}
krb5_storage_to_data(sp, out);
krb5_storage_free(sp);
return 0;
fail:
krb5_warn(context->context, ret, "%s", op);
krb5_storage_seek(sp, 0, SEEK_SET);
krb5_store_int32(sp, ret);
krb5_storage_to_data(sp, out);
krb5_storage_free(sp);
return 0;
}
static kadm5_ret_t
ret_principal_ent(krb5_storage *sp,
kadm5_principal_ent_t princ,
uint32_t mask)
{
int i;
int32_t tmp;
if (mask & KADM5_PRINCIPAL)
krb5_ret_principal(sp, &princ->principal);
if (mask & KADM5_PRINC_EXPIRE_TIME) {
krb5_ret_int32(sp, &tmp);
princ->princ_expire_time = tmp;
}
if (mask & KADM5_PW_EXPIRATION) {
krb5_ret_int32(sp, &tmp);
princ->pw_expiration = tmp;
}
if (mask & KADM5_LAST_PWD_CHANGE) {
krb5_ret_int32(sp, &tmp);
princ->last_pwd_change = tmp;
}
if (mask & KADM5_MAX_LIFE) {
krb5_ret_int32(sp, &tmp);
princ->max_life = tmp;
}
if (mask & KADM5_MOD_NAME) {
krb5_ret_int32(sp, &tmp);
if(tmp)
krb5_ret_principal(sp, &princ->mod_name);
else
princ->mod_name = NULL;
}
if (mask & KADM5_MOD_TIME) {
krb5_ret_int32(sp, &tmp);
princ->mod_date = tmp;
}
if (mask & KADM5_ATTRIBUTES) {
krb5_ret_int32(sp, &tmp);
princ->attributes = tmp;
}
if (mask & KADM5_KVNO) {
krb5_ret_int32(sp, &tmp);
princ->kvno = tmp;
}
if (mask & KADM5_MKVNO) {
krb5_ret_int32(sp, &tmp);
princ->mkvno = tmp;
}
if (mask & KADM5_POLICY) {
krb5_ret_int32(sp, &tmp);
if(tmp)
krb5_ret_string(sp, &princ->policy);
else
princ->policy = NULL;
}
if (mask & KADM5_AUX_ATTRIBUTES) {
krb5_ret_int32(sp, &tmp);
princ->aux_attributes = tmp;
}
if (mask & KADM5_MAX_RLIFE) {
krb5_ret_int32(sp, &tmp);
princ->max_renewable_life = tmp;
}
if (mask & KADM5_LAST_SUCCESS) {
krb5_ret_int32(sp, &tmp);
princ->last_success = tmp;
}
if (mask & KADM5_LAST_FAILED) {
krb5_ret_int32(sp, &tmp);
princ->last_failed = tmp;
}
if (mask & KADM5_FAIL_AUTH_COUNT) {
krb5_ret_int32(sp, &tmp);
princ->fail_auth_count = tmp;
}
if (mask & KADM5_KEY_DATA) {
krb5_ret_int32(sp, &tmp);
princ->n_key_data = tmp;
princ->key_data = malloc(princ->n_key_data * sizeof(*princ->key_data));
if (princ->key_data == NULL && princ->n_key_data != 0)
return ENOMEM;
for(i = 0; i < princ->n_key_data; i++)
kadm5_ret_key_data(sp, &princ->key_data[i]);
}
if (mask & KADM5_TL_DATA) {
krb5_ret_int32(sp, &tmp);
princ->n_tl_data = tmp;
princ->tl_data = NULL;
for(i = 0; i < princ->n_tl_data; i++){
krb5_tl_data *tp = malloc(sizeof(*tp));
if (tp == NULL)
return ENOMEM;
kadm5_ret_tl_data(sp, tp);
tp->tl_data_next = princ->tl_data;
princ->tl_data = tp;
}
}
return 0;
}
static kadm5_ret_t
kadmind_dispatch(void *kadm_handlep, krb5_boolean initial,
krb5_data *in, krb5_data *out)
{
kadm5_ret_t ret;
int32_t cmd, mask, tmp;
kadm5_server_context *contextp = kadm_handlep;
char client[128], name[128], name2[128];
const char *op = "";
krb5_principal princ, princ2;
kadm5_principal_ent_rec ent;
char *password, *expression;
krb5_keyblock *new_keys;
krb5_key_salt_tuple *ks_tuple = NULL;
krb5_boolean keepold = FALSE;
int n_ks_tuple = 0;
int n_keys;
char **princs;
int n_princs;
int keys_ok = 0;
krb5_storage *sp;
krb5_unparse_name_fixed(contextp->context, contextp->caller,
client, sizeof(client));
sp = krb5_storage_from_data(in);
if (sp == NULL)
krb5_errx(contextp->context, 1, "out of memory");
krb5_ret_int32(sp, &cmd);
switch(cmd){
case kadm_get:{
op = "GET";
ret = krb5_ret_principal(sp, &princ);
if(ret)
goto fail;
ret = krb5_ret_int32(sp, &mask);
if(ret){
krb5_free_principal(contextp->context, princ);
goto fail;
}
mask |= KADM5_PRINCIPAL;
krb5_unparse_name_fixed(contextp->context, princ, name, sizeof(name));
krb5_warnx(contextp->context, "%s: %s %s", client, op, name);
/* If the caller doesn't have KADM5_PRIV_GET, we're done. */
ret = _kadm5_acl_check_permission(contextp, KADM5_PRIV_GET, princ);
if (ret) {
krb5_free_principal(contextp->context, princ);
goto fail;
}
/* Then check to see if it is ok to return keys */
if ((mask & KADM5_KEY_DATA) != 0) {
ret = _kadm5_acl_check_permission(contextp, KADM5_PRIV_GET_KEYS,
princ);
if (ret == 0) {
keys_ok = 1;
} else if ((mask == (KADM5_PRINCIPAL|KADM5_KEY_DATA)) ||
(mask == (KADM5_PRINCIPAL|KADM5_KVNO|KADM5_KEY_DATA))) {
/*
* Requests for keys will get bogus keys, which is useful if
* the client just wants to see what (kvno, enctype)s the
* principal has keys for, but terrible if the client wants to
* write the keys into a keytab or modify the principal and
* write the bogus keys back to the server.
*
* We use a heuristic to detect which case we're handling here.
* If the client only asks for the flags in the above
* condition, then it's very likely a kadmin ext_keytab,
* add_enctype, or other request that should not see bogus
* keys. We deny them.
*
* The kadmin get command can be coaxed into making a request
* with the same mask. But the default long and terse output
* modes request other things too, so in all likelihood this
* heuristic will not hurt any kadmin get uses.
*/
krb5_free_principal(contextp->context, princ);
goto fail;
}
}
ret = kadm5_get_principal(kadm_handlep, princ, &ent, mask);
krb5_storage_free(sp);
sp = krb5_storage_emem();
krb5_store_int32(sp, ret);
if (ret == 0){
if (keys_ok)
kadm5_store_principal_ent(sp, &ent);
else
kadm5_store_principal_ent_nokeys(sp, &ent);
kadm5_free_principal_ent(kadm_handlep, &ent);
}
krb5_free_principal(contextp->context, princ);
break;
}
case kadm_delete:{
op = "DELETE";
ret = krb5_ret_principal(sp, &princ);
if(ret)
goto fail;
krb5_unparse_name_fixed(contextp->context, princ, name, sizeof(name));
krb5_warnx(contextp->context, "%s: %s %s", client, op, name);
ret = _kadm5_acl_check_permission(contextp, KADM5_PRIV_DELETE, princ);
if(ret){
krb5_free_principal(contextp->context, princ);
goto fail;
}
ret = kadm5_delete_principal(kadm_handlep, princ);
krb5_free_principal(contextp->context, princ);
krb5_storage_free(sp);
sp = krb5_storage_emem();
krb5_store_int32(sp, ret);
break;
}
case kadm_create:{
op = "CREATE";
ret = kadm5_ret_principal_ent(sp, &ent);
if(ret)
goto fail;
ret = krb5_ret_int32(sp, &mask);
if(ret){
kadm5_free_principal_ent(contextp->context, &ent);
goto fail;
}
ret = krb5_ret_string(sp, &password);
if(ret){
kadm5_free_principal_ent(contextp->context, &ent);
goto fail;
}
krb5_unparse_name_fixed(contextp->context, ent.principal,
name, sizeof(name));
krb5_warnx(contextp->context, "%s: %s %s", client, op, name);
ret = _kadm5_acl_check_permission(contextp, KADM5_PRIV_ADD,
ent.principal);
if(ret){
kadm5_free_principal_ent(contextp->context, &ent);
memset(password, 0, strlen(password));
free(password);
goto fail;
}
ret = kadm5_create_principal(kadm_handlep, &ent,
mask, password);
kadm5_free_principal_ent(kadm_handlep, &ent);
memset(password, 0, strlen(password));
free(password);
krb5_storage_free(sp);
sp = krb5_storage_emem();
krb5_store_int32(sp, ret);
break;
}
case kadm_modify:{
op = "MODIFY";
ret = kadm5_ret_principal_ent(sp, &ent);
if(ret)
goto fail;
ret = krb5_ret_int32(sp, &mask);
if(ret){
kadm5_free_principal_ent(contextp, &ent);
goto fail;
}
krb5_unparse_name_fixed(contextp->context, ent.principal,
name, sizeof(name));
krb5_warnx(contextp->context, "%s: %s %s", client, op, name);
ret = _kadm5_acl_check_permission(contextp, KADM5_PRIV_MODIFY,
ent.principal);
if(ret){
kadm5_free_principal_ent(contextp, &ent);
goto fail;
}
ret = kadm5_modify_principal(kadm_handlep, &ent, mask);
kadm5_free_principal_ent(kadm_handlep, &ent);
krb5_storage_free(sp);
sp = krb5_storage_emem();
krb5_store_int32(sp, ret);
break;
}
case kadm_rename:{
op = "RENAME";
ret = krb5_ret_principal(sp, &princ);
if(ret)
goto fail;
ret = krb5_ret_principal(sp, &princ2);
if(ret){
krb5_free_principal(contextp->context, princ);
goto fail;
}
krb5_unparse_name_fixed(contextp->context, princ, name, sizeof(name));
krb5_unparse_name_fixed(contextp->context, princ2, name2, sizeof(name2));
krb5_warnx(contextp->context, "%s: %s %s -> %s",
client, op, name, name2);
ret = _kadm5_acl_check_permission(contextp,
KADM5_PRIV_ADD,
princ2)
|| _kadm5_acl_check_permission(contextp,
KADM5_PRIV_DELETE,
princ);
if(ret){
krb5_free_principal(contextp->context, princ);
krb5_free_principal(contextp->context, princ2);
goto fail;
}
ret = kadm5_rename_principal(kadm_handlep, princ, princ2);
krb5_free_principal(contextp->context, princ);
krb5_free_principal(contextp->context, princ2);
krb5_storage_free(sp);
sp = krb5_storage_emem();
krb5_store_int32(sp, ret);
break;
}
case kadm_chpass:{
op = "CHPASS";
ret = krb5_ret_principal(sp, &princ);
if (ret)
goto fail;
ret = krb5_ret_string(sp, &password);
if (ret) {
krb5_free_principal(contextp->context, princ);
goto fail;
}
ret = krb5_ret_int32(sp, &keepold);
if (ret && ret != HEIM_ERR_EOF) {
krb5_free_principal(contextp->context, princ);
goto fail;
}
krb5_unparse_name_fixed(contextp->context, princ, name, sizeof(name));
krb5_warnx(contextp->context, "%s: %s %s", client, op, name);
/*
* The change is allowed if at least one of:
*
* a) allowed by sysadmin
* b) it's for the principal him/herself and this was an
* initial ticket, but then, check with the password quality
* function.
* c) the user is on the CPW ACL.
*/
if (krb5_config_get_bool_default(contextp->context, NULL, TRUE,
"kadmin", "allow_self_change_password", NULL)
&& initial
&& krb5_principal_compare (contextp->context, contextp->caller,
princ))
{
krb5_data pwd_data;
const char *pwd_reason;
pwd_data.data = password;
pwd_data.length = strlen(password);
pwd_reason = kadm5_check_password_quality (contextp->context,
princ, &pwd_data);
if (pwd_reason != NULL)
ret = KADM5_PASS_Q_DICT;
else
ret = 0;
} else
ret = _kadm5_acl_check_permission(contextp, KADM5_PRIV_CPW, princ);
if(ret) {
krb5_free_principal(contextp->context, princ);
memset(password, 0, strlen(password));
free(password);
goto fail;
}
ret = kadm5_chpass_principal_3(kadm_handlep, princ, keepold, 0, NULL,
password);
krb5_free_principal(contextp->context, princ);
memset(password, 0, strlen(password));
free(password);
krb5_storage_free(sp);
sp = krb5_storage_emem();
krb5_store_int32(sp, ret);
break;
}
case kadm_chpass_with_key:{
int i;
krb5_key_data *key_data;
int n_key_data;
op = "CHPASS_WITH_KEY";
ret = krb5_ret_principal(sp, &princ);
if(ret)
goto fail;
ret = krb5_ret_int32(sp, &n_key_data);
if (ret) {
krb5_free_principal(contextp->context, princ);
goto fail;
}
ret = krb5_ret_int32(sp, &keepold);
if (ret && ret != HEIM_ERR_EOF) {
krb5_free_principal(contextp->context, princ);
goto fail;
}
/* n_key_data will be squeezed into an int16_t below. */
if (n_key_data < 0 || n_key_data >= 1 << 16 ||
(size_t)n_key_data > UINT_MAX/sizeof(*key_data)) {
ret = ERANGE;
krb5_free_principal(contextp->context, princ);
goto fail;
}
key_data = malloc (n_key_data * sizeof(*key_data));
if (key_data == NULL && n_key_data != 0) {
ret = ENOMEM;
krb5_free_principal(contextp->context, princ);
goto fail;
}
for (i = 0; i < n_key_data; ++i) {
ret = kadm5_ret_key_data (sp, &key_data[i]);
if (ret) {
int16_t dummy = i;
kadm5_free_key_data (contextp, &dummy, key_data);
free (key_data);
krb5_free_principal(contextp->context, princ);
goto fail;
}
}
krb5_unparse_name_fixed(contextp->context, princ, name, sizeof(name));
krb5_warnx(contextp->context, "%s: %s %s", client, op, name);
/*
* The change is only allowed if the user is on the CPW ACL,
* this it to force password quality check on the user.
*/
ret = _kadm5_acl_check_permission(contextp, KADM5_PRIV_CPW, princ);
if(ret) {
int16_t dummy = n_key_data;
kadm5_free_key_data (contextp, &dummy, key_data);
free (key_data);
krb5_free_principal(contextp->context, princ);
goto fail;
}
ret = kadm5_chpass_principal_with_key_3(kadm_handlep, princ, keepold,
n_key_data, key_data);
{
int16_t dummy = n_key_data;
kadm5_free_key_data (contextp, &dummy, key_data);
}
free (key_data);
krb5_free_principal(contextp->context, princ);
krb5_storage_free(sp);
sp = krb5_storage_emem();
krb5_store_int32(sp, ret);
break;
}
case kadm_randkey:{
op = "RANDKEY";
ret = krb5_ret_principal(sp, &princ);
if(ret)
goto fail;
krb5_unparse_name_fixed(contextp->context, princ, name, sizeof(name));
krb5_warnx(contextp->context, "%s: %s %s", client, op, name);
/*
* The change is allowed if at least one of:
* a) it's for the principal him/herself and this was an initial ticket
* b) the user is on the CPW ACL.
*/
if (initial
&& krb5_principal_compare (contextp->context, contextp->caller,
princ))
ret = 0;
else
ret = _kadm5_acl_check_permission(contextp, KADM5_PRIV_CPW, princ);
if(ret) {
krb5_free_principal(contextp->context, princ);
goto fail;
}
/*
* See comments in kadm5_c_randkey_principal() regarding the
* protocol.
*/
ret = krb5_ret_int32(sp, &keepold);
if (ret != 0 && ret != HEIM_ERR_EOF) {
krb5_free_principal(contextp->context, princ);
goto fail;
}
ret = krb5_ret_int32(sp, &n_ks_tuple);
if (ret != 0 && ret != HEIM_ERR_EOF) {
krb5_free_principal(contextp->context, princ);
goto fail;
} else if (ret == 0) {
size_t i;
if (n_ks_tuple < 0) {
ret = EOVERFLOW;
krb5_free_principal(contextp->context, princ);
goto fail;
}
if ((ks_tuple = calloc(n_ks_tuple, sizeof (*ks_tuple))) == NULL) {
ret = errno;
krb5_free_principal(contextp->context, princ);
goto fail;
}
for (i = 0; i < n_ks_tuple; i++) {
ret = krb5_ret_int32(sp, &ks_tuple[i].ks_enctype);
if (ret != 0) {
krb5_free_principal(contextp->context, princ);
goto fail;
}
ret = krb5_ret_int32(sp, &ks_tuple[i].ks_salttype);
if (ret != 0) {
krb5_free_principal(contextp->context, princ);
goto fail;
}
}
}
ret = kadm5_randkey_principal_3(kadm_handlep, princ, keepold,
n_ks_tuple, ks_tuple, &new_keys,
&n_keys);
krb5_free_principal(contextp->context, princ);
krb5_storage_free(sp);
sp = krb5_storage_emem();
krb5_store_int32(sp, ret);
if(ret == 0){
int i;
krb5_store_int32(sp, n_keys);
for(i = 0; i < n_keys; i++){
krb5_store_keyblock(sp, new_keys[i]);
krb5_free_keyblock_contents(contextp->context, &new_keys[i]);
}
free(new_keys);
}
break;
}
case kadm_get_privs:{
uint32_t privs;
ret = kadm5_get_privs(kadm_handlep, &privs);
krb5_storage_free(sp);
sp = krb5_storage_emem();
krb5_store_int32(sp, ret);
if(ret == 0)
krb5_store_uint32(sp, privs);
break;
}
case kadm_get_princs:{
op = "LIST";
ret = krb5_ret_int32(sp, &tmp);
if(ret)
goto fail;
if(tmp){
ret = krb5_ret_string(sp, &expression);
if(ret)
goto fail;
}else
expression = NULL;
krb5_warnx(contextp->context, "%s: %s %s", client, op,
expression ? expression : "*");
ret = _kadm5_acl_check_permission(contextp, KADM5_PRIV_LIST, NULL);
if(ret){
free(expression);
goto fail;
}
ret = kadm5_get_principals(kadm_handlep, expression, &princs, &n_princs);
free(expression);
krb5_storage_free(sp);
sp = krb5_storage_emem();
krb5_store_int32(sp, ret);
if(ret == 0){
int i;
krb5_store_int32(sp, n_princs);
for(i = 0; i < n_princs; i++)
krb5_store_string(sp, princs[i]);
kadm5_free_name_list(kadm_handlep, princs, &n_princs);
}
break;
}
default:
krb5_warnx(contextp->context, "%s: UNKNOWN OP %d", client, cmd);
krb5_storage_free(sp);
sp = krb5_storage_emem();
krb5_store_int32(sp, KADM5_FAILURE);
break;
}
krb5_storage_to_data(sp, out);
krb5_storage_free(sp);
return 0;
fail:
krb5_warn(contextp->context, ret, "%s", op);
krb5_storage_seek(sp, 0, SEEK_SET);
krb5_store_int32(sp, ret);
krb5_storage_to_data(sp, out);
krb5_storage_free(sp);
return 0;
}