diff options
Diffstat (limited to 'crypto/heimdal/kadmin/server.c')
| -rw-r--r-- | crypto/heimdal/kadmin/server.c | 562 |
1 files changed, 0 insertions, 562 deletions
diff --git a/crypto/heimdal/kadmin/server.c b/crypto/heimdal/kadmin/server.c deleted file mode 100644 index 143e95d96fa4..000000000000 --- a/crypto/heimdal/kadmin/server.c +++ /dev/null @@ -1,562 +0,0 @@ -/* - * Copyright (c) 1997 - 2002 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 <krb5-private.h> - -RCSID("$Id: server.c,v 1.36 2002/09/10 19:23:28 joda Exp $"); - -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, *exp; - 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); - - 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; - } - 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); - 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 - * 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_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) { - 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 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) { - 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]); - } - } - break; - } - case kadm_get_privs:{ - ret = kadm5_get_privs(kadm_handle, &mask); - krb5_storage_free(sp); - sp = krb5_storage_emem(); - krb5_store_int32(sp, ret); - if(ret == 0) - krb5_store_int32(sp, mask); - break; - } - case kadm_get_princs:{ - op = "LIST"; - ret = krb5_ret_int32(sp, &tmp); - if(ret) - goto fail; - if(tmp){ - ret = krb5_ret_string(sp, &exp); - if(ret) - goto fail; - }else - exp = NULL; - krb5_warnx(context->context, "%s: %s %s", client, op, exp ? exp : "*"); - ret = _kadm5_acl_check_permission(context, KADM5_PRIV_LIST, NULL); - if(ret){ - free(exp); - goto fail; - } - ret = kadm5_get_principals(kadm_handle, exp, &princs, &n_princs); - free(exp); - 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 void -v5_loop (krb5_context context, - krb5_auth_context ac, - krb5_boolean initial, - void *kadm_handle, - int fd) -{ - krb5_error_code ret; - krb5_data in, out; - - for (;;) { - doing_useful_work = 0; - if(term_flag) - exit(0); - ret = krb5_read_priv_message(context, ac, &fd, &in); - if(ret == HEIM_ERR_EOF) - exit(0); - if(ret) - krb5_err(context, 1, ret, "krb5_read_priv_message"); - doing_useful_work = 1; - kadmind_dispatch(kadm_handle, initial, &in, &out); - krb5_data_free(&in); - ret = krb5_write_priv_message(context, ac, &fd, &out); - if(ret) - krb5_err(context, 1, ret, "krb5_write_priv_message"); - } -} - -static krb5_boolean -match_appl_version(const void *data, const char *appl_version) -{ - unsigned minor; - if(sscanf(appl_version, "KADM0.%u", &minor) != 1) - return 0; - *(unsigned*)data = minor; - return 1; -} - -static void -handle_v5(krb5_context context, - krb5_auth_context ac, - krb5_keytab keytab, - int len, - int fd) -{ - krb5_error_code ret; - u_char version[sizeof(KRB5_SENDAUTH_VERSION)]; - krb5_ticket *ticket; - char *server_name; - char *client; - void *kadm_handle; - ssize_t n; - krb5_boolean initial; - - unsigned kadm_version; - kadm5_config_params realm_params; - - if (len != sizeof(KRB5_SENDAUTH_VERSION)) - krb5_errx(context, 1, "bad sendauth len %d", len); - n = krb5_net_read(context, &fd, version, len); - if (n < 0) - krb5_err (context, 1, errno, "reading sendauth version"); - if (n == 0) - krb5_errx (context, 1, "EOF reading sendauth version"); - if(memcmp(version, KRB5_SENDAUTH_VERSION, len) != 0) - krb5_errx(context, 1, "bad sendauth version %.8s", version); - - ret = krb5_recvauth_match_version(context, &ac, &fd, - match_appl_version, &kadm_version, - NULL, KRB5_RECVAUTH_IGNORE_VERSION, - keytab, &ticket); - if(ret == KRB5_KT_NOTFOUND) - krb5_errx(context, 1, "krb5_recvauth: key not found"); - if(ret) - krb5_err(context, 1, ret, "krb5_recvauth"); - - ret = krb5_unparse_name (context, ticket->server, &server_name); - if (ret) - krb5_err (context, 1, ret, "krb5_unparse_name"); - - if (strncmp (server_name, KADM5_ADMIN_SERVICE, - strlen(KADM5_ADMIN_SERVICE)) != 0) - krb5_errx (context, 1, "ticket for strange principal (%s)", - server_name); - - free (server_name); - - memset(&realm_params, 0, sizeof(realm_params)); - - if(kadm_version == 1) { - krb5_data params; - ret = krb5_read_priv_message(context, ac, &fd, ¶ms); - if(ret) - krb5_err(context, 1, ret, "krb5_read_priv_message"); - _kadm5_unmarshal_params(context, ¶ms, &realm_params); - } - - initial = ticket->ticket.flags.initial; - ret = krb5_unparse_name(context, ticket->client, &client); - if (ret) - krb5_err (context, 1, ret, "krb5_unparse_name"); - krb5_free_ticket (context, ticket); - ret = kadm5_init_with_password_ctx(context, - client, - NULL, - KADM5_ADMIN_SERVICE, - &realm_params, - 0, 0, - &kadm_handle); - if(ret) - krb5_err (context, 1, ret, "kadm5_init_with_password_ctx"); - v5_loop (context, ac, initial, kadm_handle, fd); -} - -krb5_error_code -kadmind_loop(krb5_context context, - krb5_auth_context ac, - krb5_keytab keytab, - int fd) -{ - unsigned char tmp[4]; - ssize_t n; - unsigned long len; - - n = krb5_net_read(context, &fd, tmp, 4); - if(n == 0) - exit(0); - if(n < 0) - krb5_err(context, 1, errno, "read"); - _krb5_get_int(tmp, &len, 4); - if(len > 0xffff && (len & 0xffff) == ('K' << 8) + 'A') { - len >>= 16; -#ifdef KRB4 - handle_v4(context, keytab, len, fd); -#else - krb5_errx(context, 1, "packet appears to be version 4"); -#endif - } else { - handle_v5(context, ac, keytab, len, fd); - } - return 0; -} |