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-rw-r--r--third_party/heimdal/kdc/hpropd.c291
1 files changed, 291 insertions, 0 deletions
diff --git a/third_party/heimdal/kdc/hpropd.c b/third_party/heimdal/kdc/hpropd.c
new file mode 100644
index 0000000..fa06a1f
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+++ b/third_party/heimdal/kdc/hpropd.c
@@ -0,0 +1,291 @@
+/*
+ * 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"
+
+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, rk_UNCONST(&database), "database", "file" },
+ { "stdin", 'n', arg_flag, &from_stdin, "read from stdin", NULL },
+ { "print", 0, arg_flag, &print_dump, "print dump to stdout", NULL },
+#ifdef SUPPORT_INETD
+ { "inetd", 'i', arg_negative_flag, &inetd_flag,
+ "Not started from inetd", NULL },
+#endif
+ { "keytab", 'k', arg_string, &ktname, "keytab to use for authentication", "keytab" },
+ { "realm", 'r', arg_string, &local_realm, "realm to use", NULL },
+ { "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 char unparseable_name[] = "unparseable name";
+
+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;
+ krb5_socket_t sock = rk_INVALID_SOCKET;
+ HDB *db = NULL;
+ 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)
+ errx(1, "krb5_openlog");
+ 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) {
+ sock = 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;
+
+ memset(&ss, 0, sizeof(ss));
+ sock = STDIN_FILENO;
+#ifdef SUPPORT_INETD
+ if (inetd_flag == -1) {
+ if (getpeername (sock, sa, &sin_len) < 0) {
+ inetd_flag = 0;
+ } else {
+ inetd_flag = 1;
+ }
+ }
+#else
+ inetd_flag = 0;
+#endif
+ if (!inetd_flag) {
+ mini_inetd (krb5_getportbyname (context, "hprop", "tcp",
+ HPROP_PORT), &sock);
+ }
+ socket_set_keepalive(sock, 1);
+ sin_len = sizeof(ss);
+ if (getpeername(sock, 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_get_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, &sock, 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/", 6) != 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) {
+ int aret;
+
+ aret = asprintf(&tmp_db, "%s~", database);
+ if (aret == -1)
+ krb5_errx(context, 1, "hdb_create: out of memory");
+
+ 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 entry;
+
+ if (from_stdin) {
+ ret = krb5_read_message(context, &sock, &data);
+ if (ret != 0 && ret != HEIM_ERR_EOF)
+ krb5_err(context, 1, ret, "krb5_read_message");
+ } else {
+ ret = krb5_read_priv_message(context, ac, &sock, &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, &sock, &data);
+ }
+ if (!print_dump) {
+ ret = db->hdb_close(context, db);
+ if (ret)
+ krb5_err(context, 1, ret, "db_close");
+ ret = db->hdb_rename(context, db, database);
+ if (ret)
+ krb5_err(context, 1, ret, "db_rename");
+ }
+ break;
+ }
+ memset(&entry, 0, sizeof(entry));
+ ret = hdb_value2entry(context, &data, &entry);
+ krb5_data_free(&data);
+ if (ret)
+ krb5_err(context, 1, ret, "hdb_value2entry");
+ if (print_dump) {
+ struct hdb_print_entry_arg parg;
+
+ parg.out = stdout;
+ parg.fmt = HDB_DUMP_HEIMDAL;
+ hdb_print_entry(context, db, &entry, &parg);
+ } else {
+ ret = db->hdb_store(context, db, 0, &entry);
+ if (ret == HDB_ERR_EXISTS) {
+ char *s;
+ ret = krb5_unparse_name(context, 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, db, &entry);
+ }
+ if (!print_dump)
+ krb5_log(context, fac, 0, "Received %d principals", nprincs);
+
+ if (inetd_flag == 0)
+ rk_closesocket(sock);
+
+ exit(0);
+}
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