diff options
Diffstat (limited to 'kdc/hpropd.c')
| -rw-r--r-- | kdc/hpropd.c | 271 |
1 files changed, 271 insertions, 0 deletions
diff --git a/kdc/hpropd.c b/kdc/hpropd.c new file mode 100644 index 0000000000000..12a9766572104 --- /dev/null +++ b/kdc/hpropd.c @@ -0,0 +1,271 @@ +/* + * Copyright (c) 1997-2006 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 "hprop.h" + +RCSID("$Id: hpropd.c 22245 2007-12-08 23:48:52Z lha $"); + +static int inetd_flag = -1; +static int help_flag; +static int version_flag; +static int print_dump; +static const char *database; +static int from_stdin; +static char *local_realm; +static char *ktname = NULL; + +struct getargs args[] = { + { "database", 'd', arg_string, &database, "database", "file" }, + { "stdin", 'n', arg_flag, &from_stdin, "read from stdin" }, + { "print", 0, arg_flag, &print_dump, "print dump to stdout" }, + { "inetd", 'i', arg_negative_flag, &inetd_flag, + "Not started from inetd" }, + { "keytab", 'k', arg_string, &ktname, "keytab to use for authentication", "keytab" }, + { "realm", 'r', arg_string, &local_realm, "realm to use" }, + { "version", 0, arg_flag, &version_flag, NULL, NULL }, + { "help", 'h', arg_flag, &help_flag, NULL, NULL} +}; + +static int num_args = sizeof(args) / sizeof(args[0]); + +static void +usage(int ret) +{ + arg_printusage (args, num_args, NULL, ""); + exit (ret); +} + +int +main(int argc, char **argv) +{ + krb5_error_code ret; + krb5_context context; + krb5_auth_context ac = NULL; + krb5_principal c1, c2; + krb5_authenticator authent; + krb5_keytab keytab; + int fd; + HDB *db; + int optidx = 0; + char *tmp_db; + krb5_log_facility *fac; + int nprincs; + + setprogname(argv[0]); + + ret = krb5_init_context(&context); + if(ret) + exit(1); + + ret = krb5_openlog(context, "hpropd", &fac); + if(ret) + ; + krb5_set_warn_dest(context, fac); + + if(getarg(args, num_args, argc, argv, &optidx)) + usage(1); + + if(local_realm != NULL) + krb5_set_default_realm(context, local_realm); + + if(help_flag) + usage(0); + if(version_flag) { + print_version(NULL); + exit(0); + } + + argc -= optidx; + argv += optidx; + + if (argc != 0) + usage(1); + + if (database == NULL) + database = hdb_default_db(context); + + if(from_stdin) + fd = STDIN_FILENO; + else { + struct sockaddr_storage ss; + struct sockaddr *sa = (struct sockaddr *)&ss; + socklen_t sin_len = sizeof(ss); + char addr_name[256]; + krb5_ticket *ticket; + char *server; + + fd = STDIN_FILENO; + if (inetd_flag == -1) { + if (getpeername (fd, sa, &sin_len) < 0) + inetd_flag = 0; + else + inetd_flag = 1; + } + if (!inetd_flag) { + mini_inetd (krb5_getportbyname (context, "hprop", "tcp", + HPROP_PORT)); + } + sin_len = sizeof(ss); + if(getpeername(fd, sa, &sin_len) < 0) + krb5_err(context, 1, errno, "getpeername"); + + if (inet_ntop(sa->sa_family, + socket_get_address (sa), + addr_name, + sizeof(addr_name)) == NULL) + strlcpy (addr_name, "unknown address", + sizeof(addr_name)); + + krb5_log(context, fac, 0, "Connection from %s", addr_name); + + ret = krb5_kt_register(context, &hdb_kt_ops); + if(ret) + krb5_err(context, 1, ret, "krb5_kt_register"); + + if (ktname != NULL) { + ret = krb5_kt_resolve(context, ktname, &keytab); + if (ret) + krb5_err (context, 1, ret, "krb5_kt_resolve %s", ktname); + } else { + ret = krb5_kt_default (context, &keytab); + if (ret) + krb5_err (context, 1, ret, "krb5_kt_default"); + } + + ret = krb5_recvauth(context, &ac, &fd, HPROP_VERSION, NULL, + 0, keytab, &ticket); + if(ret) + krb5_err(context, 1, ret, "krb5_recvauth"); + + ret = krb5_unparse_name(context, ticket->server, &server); + if (ret) + krb5_err(context, 1, ret, "krb5_unparse_name"); + if (strncmp(server, "hprop/", 5) != 0) + krb5_errx(context, 1, "ticket not for hprop (%s)", server); + + free(server); + krb5_free_ticket (context, ticket); + + ret = krb5_auth_con_getauthenticator(context, ac, &authent); + if(ret) + krb5_err(context, 1, ret, "krb5_auth_con_getauthenticator"); + + ret = krb5_make_principal(context, &c1, NULL, "kadmin", "hprop", NULL); + if(ret) + krb5_err(context, 1, ret, "krb5_make_principal"); + _krb5_principalname2krb5_principal(context, &c2, + authent->cname, authent->crealm); + if(!krb5_principal_compare(context, c1, c2)) { + char *s; + ret = krb5_unparse_name(context, c2, &s); + if (ret) + s = "unparseable name"; + krb5_errx(context, 1, "Unauthorized connection from %s", s); + } + krb5_free_principal(context, c1); + krb5_free_principal(context, c2); + + ret = krb5_kt_close(context, keytab); + if(ret) + krb5_err(context, 1, ret, "krb5_kt_close"); + } + + if(!print_dump) { + asprintf(&tmp_db, "%s~", database); + + ret = hdb_create(context, &db, tmp_db); + if(ret) + krb5_err(context, 1, ret, "hdb_create(%s)", tmp_db); + ret = db->hdb_open(context, db, O_RDWR | O_CREAT | O_TRUNC, 0600); + if(ret) + krb5_err(context, 1, ret, "hdb_open(%s)", tmp_db); + } + + nprincs = 0; + while(1){ + krb5_data data; + hdb_entry_ex entry; + + if(from_stdin) { + ret = krb5_read_message(context, &fd, &data); + if(ret != 0 && ret != HEIM_ERR_EOF) + krb5_err(context, 1, ret, "krb5_read_message"); + } else { + ret = krb5_read_priv_message(context, ac, &fd, &data); + if(ret) + krb5_err(context, 1, ret, "krb5_read_priv_message"); + } + + if(ret == HEIM_ERR_EOF || data.length == 0) { + if(!from_stdin) { + data.data = NULL; + data.length = 0; + krb5_write_priv_message(context, ac, &fd, &data); + } + if(!print_dump) { + ret = db->hdb_rename(context, db, database); + if(ret) + krb5_err(context, 1, ret, "db_rename"); + ret = db->hdb_close(context, db); + if(ret) + krb5_err(context, 1, ret, "db_close"); + } + break; + } + memset(&entry, 0, sizeof(entry)); + ret = hdb_value2entry(context, &data, &entry.entry); + krb5_data_free(&data); + if(ret) + krb5_err(context, 1, ret, "hdb_value2entry"); + if(print_dump) + hdb_print_entry(context, db, &entry, stdout); + else { + ret = db->hdb_store(context, db, 0, &entry); + if(ret == HDB_ERR_EXISTS) { + char *s; + ret = krb5_unparse_name(context, entry.entry.principal, &s); + if (ret) + s = strdup("unparseable name"); + krb5_warnx(context, "Entry exists: %s", s); + free(s); + } else if(ret) + krb5_err(context, 1, ret, "db_store"); + else + nprincs++; + } + hdb_free_entry(context, &entry); + } + if (!print_dump) + krb5_log(context, fac, 0, "Received %d principals", nprincs); + exit(0); +} |