diff options
Diffstat (limited to 'crypto/heimdal/lib/kadm5/ipropd_master.c')
| -rw-r--r-- | crypto/heimdal/lib/kadm5/ipropd_master.c | 422 |
1 files changed, 0 insertions, 422 deletions
diff --git a/crypto/heimdal/lib/kadm5/ipropd_master.c b/crypto/heimdal/lib/kadm5/ipropd_master.c deleted file mode 100644 index b2e71a736dd26..0000000000000 --- a/crypto/heimdal/lib/kadm5/ipropd_master.c +++ /dev/null @@ -1,422 +0,0 @@ -/* - * Copyright (c) 1997, 1998 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 "iprop.h" - -RCSID("$Id: ipropd_master.c,v 1.12 1999/12/02 17:05:06 joda Exp $"); - -static int -make_signal_socket (krb5_context context) -{ - struct sockaddr_un addr; - int fd; - - fd = socket (AF_UNIX, SOCK_DGRAM, 0); - if (fd < 0) - krb5_err (context, 1, errno, "socket AF_UNIX"); - memset (&addr, 0, sizeof(addr)); - addr.sun_family = AF_UNIX; - strncpy (addr.sun_path, KADM5_LOG_SIGNAL, sizeof(addr.sun_path)); - addr.sun_path[sizeof(addr.sun_path) - 1] = '\0'; - unlink (addr.sun_path); - if (bind (fd, (struct sockaddr *)&addr, sizeof(addr)) < 0) - krb5_err (context, 1, errno, "bind %s", addr.sun_path); - return fd; -} - -static int -make_listen_socket (krb5_context context) -{ - int fd; - int one = 1; - struct sockaddr_in addr; - - fd = socket (AF_INET, SOCK_STREAM, 0); - if (fd < 0) - krb5_err (context, 1, errno, "socket AF_INET"); - setsockopt (fd, SOL_SOCKET, SO_REUSEADDR, &one, sizeof(one)); - memset (&addr, 0, sizeof(addr)); - addr.sin_family = AF_INET; - addr.sin_port = htons(4711); - if(bind(fd, (struct sockaddr *)&addr, sizeof(addr)) < 0) - krb5_err (context, 1, errno, "bind"); - if (listen(fd, SOMAXCONN) < 0) - krb5_err (context, 1, errno, "listen"); - return fd; -} - -struct slave { - int fd; - struct sockaddr_in addr; - char *name; - krb5_auth_context ac; - u_int32_t version; - struct slave *next; -}; - -typedef struct slave slave; - -static int -check_acl (krb5_context context, const char *name) -{ - FILE *fp; - char buf[256]; - int ret = 1; - - fp = fopen (KADM5_SLAVE_ACL, "r"); - if (fp == NULL) - return 1; - while (fgets(buf, sizeof(buf), fp) != NULL) { - if (buf[strlen(buf) - 1 ] == '\n') - buf[strlen(buf) - 1 ] = '\0'; - if (strcmp (buf, name) == 0) { - ret = 0; - break; - } - } - fclose (fp); - return ret; -} - -static void -add_slave (krb5_context context, slave **root, int fd) -{ - krb5_principal server; - krb5_error_code ret; - slave *s; - int addr_len; - krb5_ticket *ticket = NULL; - char hostname[128]; - - s = malloc(sizeof(*s)); - if (s == NULL) { - krb5_warnx (context, "add_slave: no memory"); - return; - } - s->name = NULL; - s->ac = NULL; - - addr_len = sizeof(s->addr); - s->fd = accept (fd, (struct sockaddr *)&s->addr, &addr_len); - if (s->fd < 0) { - krb5_warn (context, errno, "accept"); - goto error; - } - gethostname(hostname, sizeof(hostname)); - ret = krb5_sname_to_principal (context, hostname, IPROP_NAME, - KRB5_NT_SRV_HST, &server); - if (ret) { - krb5_warn (context, ret, "krb5_sname_to_principal"); - goto error; - } - - ret = krb5_recvauth (context, &s->ac, &s->fd, - IPROP_VERSION, server, 0, NULL, &ticket); - krb5_free_principal (context, server); - if (ret) { - krb5_warn (context, ret, "krb5_recvauth"); - goto error; - } - ret = krb5_unparse_name (context, ticket->client, &s->name); - if (ret) { - krb5_warn (context, ret, "krb5_unparse_name"); - goto error; - } - if (check_acl (context, s->name)) { - krb5_warnx (context, "%s not in acl", s->name); - goto error; - } - krb5_free_ticket (context, ticket); - printf ("connection from %s\n", s->name); - - s->version = 0; - s->next = *root; - *root = s; - return; -error: - if (s->name) - free (s->name); - if (s->ac) - krb5_auth_con_free(context, s->ac); - if (ticket) - krb5_free_ticket (context, ticket); - close (s->fd); - free(s); -} - -static void -remove_slave (krb5_context context, slave *s, slave **root) -{ - slave **p; - - close (s->fd); - free (s->name); - krb5_auth_con_free (context, s->ac); - - for (p = root; *p; p = &(*p)->next) - if (*p == s) { - *p = s->next; - break; - } - free (s); -} - -static int -send_complete (krb5_context context, slave *s) -{ - abort (); -} - -static int -send_diffs (krb5_context context, slave *s, int log_fd, - u_int32_t current_version) -{ - krb5_storage *sp, *data_sp; - u_int32_t ver; - time_t timestamp; - enum kadm_ops op; - u_int32_t len; - off_t right, left; - krb5_data data; - krb5_data priv_data; - int ret = 0; - - if (s->version == current_version) - return 0; - - sp = kadm5_log_goto_end (log_fd); - right = sp->seek(sp, 0, SEEK_CUR); - printf ("%ld, looking for %d\n", (long)right, s->version); - for (;;) { - if (kadm5_log_previous (sp, &ver, ×tamp, &op, &len)) - abort (); - printf ("version = %d\n", ver); - left = sp->seek(sp, -16, SEEK_CUR); - if (ver == s->version) - return 0; - if (ver == s->version + 1) - break; - if (left == 0) - return send_complete (context, s); - } - krb5_data_alloc (&data, right - left + 4); - sp->fetch (sp, (char *)data.data + 4, data.length - 4); - krb5_storage_free(sp); - - _krb5_put_int(data.data, FOR_YOU, 4); - - ret = krb5_mk_priv (context, s->ac, &data, &priv_data, NULL); - krb5_data_free(&data); - if (ret) { - krb5_warn (context, ret, "krb_mk_priv"); - return 0; - } - - ret = krb5_write_message (context, &s->fd, &priv_data); - krb5_data_free (&priv_data); - if (ret) { - krb5_warn (context, ret, "krb5_write_message"); - return 1; - } - return 0; -} - -static int -process_msg (krb5_context context, slave *s, int log_fd, - u_int32_t current_version) -{ - int ret = 0; - krb5_data in, out; - krb5_storage *sp; - int32_t tmp; - - ret = krb5_read_message (context, &s->fd, &in); - if (ret) - return 1; - - if(in.length == 0) { - krb5_warnx(context, "process_msg: short message"); - return 1; - } - - ret = krb5_rd_priv (context, s->ac, &in, &out, NULL); - krb5_data_free (&in); - if (ret) { - krb5_warn (context, ret, "krb5_rd_priv"); - return 1; - } - - sp = krb5_storage_from_mem (out.data, out.length); - krb5_ret_int32 (sp, &tmp); - switch (tmp) { - case I_HAVE : - krb5_ret_int32 (sp, &tmp); - s->version = tmp; - ret = send_diffs (context, s, log_fd, current_version); - break; - case FOR_YOU : - default : - krb5_warnx (context, "Ignoring command %d", tmp); - break; - } - - krb5_data_free (&out); - return ret; -} - -char *realm; -int version_flag; -int help_flag; -struct getargs args[] = { - { "realm", 'r', arg_string, &realm }, - { "version", 0, arg_flag, &version_flag }, - { "help", 0, arg_flag, &help_flag } -}; -int num_args = sizeof(args) / sizeof(args[0]); - -int -main(int argc, char **argv) -{ - krb5_error_code ret; - krb5_context context; - void *kadm_handle; - kadm5_server_context *server_context; - kadm5_config_params conf; - int signal_fd, listen_fd; - int log_fd; - slave *slaves = NULL; - u_int32_t current_version, old_version = 0; - - int optind; - - optind = krb5_program_setup(&context, argc, argv, args, num_args, NULL); - - if(help_flag) - krb5_std_usage(0, args, num_args); - if(version_flag) { - print_version(NULL); - exit(0); - } - - memset(&conf, 0, sizeof(conf)); - if(realm) { - conf.mask |= KADM5_CONFIG_REALM; - conf.realm = realm; - } - ret = kadm5_init_with_password_ctx (context, - KADM5_ADMIN_SERVICE, - NULL, - KADM5_ADMIN_SERVICE, - &conf, 0, 0, - &kadm_handle); - if (ret) - krb5_err (context, 1, ret, "kadm5_init_with_password_ctx"); - - server_context = (kadm5_server_context *)kadm_handle; - - log_fd = open (server_context->log_context.log_file, O_RDONLY, 0); - if (log_fd < 0) - krb5_err (context, 1, errno, "open %s", - server_context->log_context.log_file); - - signal_fd = make_signal_socket (context); - listen_fd = make_listen_socket (context); - - for (;;) { - slave *p; - fd_set readset; - int max_fd = 0; - struct timeval to = {30, 0}; - u_int32_t vers; - - FD_ZERO(&readset); - FD_SET(signal_fd, &readset); - max_fd = max(max_fd, signal_fd); - FD_SET(listen_fd, &readset); - max_fd = max(max_fd, listen_fd); - - for (p = slaves; p != NULL; p = p->next) { - FD_SET(p->fd, &readset); - max_fd = max(max_fd, p->fd); - } - - ret = select (max_fd + 1, - &readset, NULL, NULL, &to); - if (ret < 0) { - if (errno == EINTR) - continue; - else - krb5_err (context, 1, errno, "select"); - } - - if (ret == 0) { - old_version = current_version; - kadm5_log_get_version (log_fd, ¤t_version); - - if (current_version > old_version) - for (p = slaves; p != NULL; p = p->next) - send_diffs (context, p, log_fd, current_version); - } - - if (ret && FD_ISSET(signal_fd, &readset)) { - struct sockaddr_un peer_addr; - int peer_len = sizeof(peer_addr); - - if(recvfrom(signal_fd, &vers, sizeof(vers), 0, - (struct sockaddr *)&peer_addr, &peer_len) < 0) { - krb5_warn (context, errno, "recvfrom"); - continue; - } - printf ("signal: %u\n", vers); - --ret; - old_version = current_version; - kadm5_log_get_version (log_fd, ¤t_version); - for (p = slaves; p != NULL; p = p->next) - send_diffs (context, p, log_fd, current_version); - } - - for(p = slaves; p != NULL && ret--; p = p->next) - if (FD_ISSET(p->fd, &readset)) { - if(process_msg (context, p, log_fd, current_version)) - remove_slave (context, p, &slaves); - } - - if (ret && FD_ISSET(listen_fd, &readset)) { - add_slave (context, &slaves, listen_fd); - --ret; - } - - } - - return 0; -} |
