Adding upstream version 2:4.20.0+dfsg.upstream/2%4.20.0+dfsg

Signed-off-by: Daniel Baumann <daniel.baumann@progress-linux.org>

1 files changed, 423 insertions, 0 deletions

diff --git a/third_party/heimdal/kcm/config.c b/third_party/heimdal/kcm/config.c
new file mode 100644
index 0000000..217d28d
--- /dev/null
+++ b/third_party/heimdal/kcm/config.c
@@ -0,0 +1,423 @@
+/*
+ * Copyright (c) 2005, PADL Software Pty Ltd.
+ * All rights reserved.
+ *
+ * Portions Copyright (c) 2009 Apple Inc. 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 PADL Software 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 PADL SOFTWARE 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 PADL SOFTWARE 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 "kcm_locl.h"
+#include <getarg.h>
+#include <parse_bytes.h>
+
+#define MAX_REQUEST_MAX 67108864ll /* 64MB, the maximum accepted value of max_request */
+
+static const char *config_file;	/* location of kcm config file */
+
+size_t max_request = 0;		/* maximal size of a request */
+char *socket_path = NULL;
+
+static char *max_request_str;	/* `max_request' as a string */
+
+int detach_from_console = -1;
+int daemon_child = -1;
+int automatic_renewal = -1;
+
+static const char *system_cache_name = NULL;
+static const char *system_keytab = NULL;
+static const char *system_principal = NULL;
+static const char *system_server = NULL;
+static const char *system_perms = NULL;
+static const char *system_user = NULL;
+static const char *system_group = NULL;
+
+static const char *renew_life = NULL;
+static const char *ticket_life = NULL;
+
+int launchd_flag = 0;
+int disallow_getting_krbtgt = 0;
+int name_constraints = -1;
+
+static int help_flag;
+static int version_flag;
+
+static struct getargs args[] = {
+    {
+	"cache-name",	0,	arg_string,	&system_cache_name,
+	"system cache name", "cachename"
+    },
+    {
+	"config-file",	'c',	arg_string,	&config_file,
+	"location of config file",	"file"
+    },
+    {
+	"group",	'g',	arg_string,	&system_group,
+	"system cache group",	"group"
+    },
+    {
+	"max-request",	0,	arg_string, &max_request,
+	"max size for a kcm-request", "size"
+    },
+    {
+	"launchd",	0,	arg_flag, &launchd_flag,
+	"when in use by launchd", NULL
+    },
+    {
+	"detach",       0 ,      arg_flag, &detach_from_console,
+	"detach from console", NULL
+    },
+    {
+        "daemon-child",       0 ,      arg_integer, &daemon_child,
+        "private argument, do not use", NULL
+    },
+    {
+	"automatic-renewal",	0 , arg_negative_flag, &automatic_renewal,
+	"disable automatic TGT renewal", NULL
+    },
+    {	"help",		'h',	arg_flag,   &help_flag, NULL, NULL },
+    {
+	"system-principal",	'k',	arg_string,	&system_principal,
+	"system principal name",	"principal"
+    },
+    {
+	"lifetime",	'l', arg_string, &ticket_life,
+	"lifetime of system tickets", "time"
+    },
+    {
+	"mode",		'm', arg_string, &system_perms,
+	"octal mode of system cache", "mode"
+    },
+    {
+	"name-constraints",	'n', arg_negative_flag, &name_constraints,
+	"disable credentials cache name constraints", NULL
+    },
+    {
+	"disallow-getting-krbtgt", 0, arg_flag, &disallow_getting_krbtgt,
+	"disable fetching krbtgt from the cache", NULL
+    },
+    {
+	"renewable-life",	'r', arg_string, &renew_life,
+    	"renewable lifetime of system tickets", "time"
+    },
+    {
+	"max-request",	'r', arg_integer, &max_request_str,
+	"max request size", "bytes"
+    },
+    {
+	"socket-path",		's', arg_string, &socket_path,
+    	"path to kcm domain socket", "path"
+    },
+    {
+	"server",		'S', arg_string, &system_server,
+    	"server to get system ticket for", "principal"
+    },
+    {
+	"keytab",	't',	arg_string,	&system_keytab,
+	"system keytab name",	"keytab"
+    },
+    {
+	"user",		'u',	arg_string,	&system_user,
+	"system cache owner",	"user"
+    },
+    {	"version",	'v',	arg_flag,   &version_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);
+}
+
+static int parse_owners(kcm_ccache ccache)
+{
+    uid_t uid = 0;
+    gid_t gid = 0;
+    struct passwd *pw;
+    struct group *gr;
+    int uid_p = 0;
+    int gid_p = 0;
+
+    if (system_user != NULL) {
+	if (isdigit((unsigned char)system_user[0])) {
+	    pw = getpwuid(atoi(system_user));
+	} else {
+	    pw = getpwnam(system_user);
+	}
+	if (pw == NULL) {
+	    return errno;
+	}
+
+	system_user = strdup(pw->pw_name);
+	if (system_user == NULL) {
+	    return ENOMEM;
+	}
+
+	uid = pw->pw_uid; uid_p = 1;
+	gid = pw->pw_gid; gid_p = 1;
+    }
+
+    if (system_group != NULL) {
+	if (isdigit((unsigned char)system_group[0])) {
+	    gr = getgrgid(atoi(system_group));
+	} else {
+	    gr = getgrnam(system_group);
+	}
+	if (gr == NULL) {
+	    return errno;
+	}
+
+	gid = gr->gr_gid; gid_p = 1;
+    }
+
+    if (uid_p)
+	ccache->uid = uid;
+    else
+	ccache->uid = 0; /* geteuid() XXX */
+
+    if (gid_p)
+	ccache->gid = gid;
+    else
+	ccache->gid = 0; /* getegid() XXX */
+
+    return 0;
+}
+
+static const char *
+kcm_system_config_get_string(const char *string)
+{
+    return krb5_config_get_string(kcm_context, NULL, "kcm",
+				  "system_ccache", string, NULL);
+}
+
+static krb5_error_code
+ccache_init_system(void)
+{
+    kcm_ccache ccache;
+    krb5_error_code ret;
+
+    if (system_cache_name == NULL)
+	system_cache_name = kcm_system_config_get_string("cc_name");
+
+    ret = kcm_ccache_new(kcm_context,
+			 system_cache_name ? system_cache_name : "SYSTEM",
+			 &ccache);
+    if (ret)
+	return ret;
+
+    ccache->flags |= KCM_FLAGS_OWNER_IS_SYSTEM;
+    ccache->flags |= KCM_FLAGS_USE_KEYTAB;
+
+    ret = parse_owners(ccache);
+    if (ret)
+	return ret;
+
+    ret = krb5_parse_name(kcm_context, system_principal, &ccache->client);
+    if (ret) {
+	kcm_release_ccache(kcm_context, ccache);
+	return ret;
+    }
+
+    if (system_server == NULL)
+	system_server = kcm_system_config_get_string("server");
+
+    if (system_server != NULL) {
+	ret = krb5_parse_name(kcm_context, system_server, &ccache->server);
+	if (ret) {
+	    kcm_release_ccache(kcm_context, ccache);
+	    return ret;
+	}
+    }
+
+    if (system_keytab == NULL)
+	system_keytab = kcm_system_config_get_string("keytab_name");
+
+    if (system_keytab != NULL) {
+	ret = krb5_kt_resolve(kcm_context, system_keytab, &ccache->key.keytab);
+    } else {
+	ret = krb5_kt_default(kcm_context, &ccache->key.keytab);
+    }
+    if (ret) {
+	kcm_release_ccache(kcm_context, ccache);
+	return ret;
+    }
+
+    if (renew_life == NULL)
+	renew_life = kcm_system_config_get_string("renew_life");
+
+    if (renew_life == NULL)
+	renew_life = "6 months";
+
+    if (renew_life != NULL) {
+	ccache->renew_life = parse_time(renew_life, "s");
+	if (ccache->renew_life < 0) {
+	    kcm_release_ccache(kcm_context, ccache);
+	    return EINVAL;
+	}
+    }
+
+    if (ticket_life == NULL)
+	ticket_life = kcm_system_config_get_string("ticket_life");
+
+    if (ticket_life != NULL) {
+	ccache->tkt_life = parse_time(ticket_life, "s");
+	if (ccache->tkt_life < 0) {
+	    kcm_release_ccache(kcm_context, ccache);
+	    return EINVAL;
+	}
+    }
+
+    if (system_perms == NULL)
+	system_perms = kcm_system_config_get_string("mode");
+
+    if (system_perms != NULL) {
+	int mode;
+
+	if (sscanf(system_perms, "%o", &mode) != 1)
+	    return EINVAL;
+
+	ccache->mode = mode;
+    }
+
+    if (disallow_getting_krbtgt == -1) {
+	disallow_getting_krbtgt =
+	    krb5_config_get_bool_default(kcm_context, NULL, FALSE, "kcm",
+					 "disallow-getting-krbtgt", NULL);
+    }
+
+    /* enqueue default actions for credentials cache */
+    ret = kcm_ccache_enqueue_default(kcm_context, ccache, NULL);
+
+    kcm_release_ccache(kcm_context, ccache); /* retained by event queue */
+
+    return ret;
+}
+
+void
+kcm_configure(int argc, char **argv)
+{
+    krb5_error_code ret;
+    int optidx = 0;
+    const char *p;
+
+    while (getarg(args, num_args, argc, argv, &optidx))
+	warnx("error at argument `%s'", argv[optidx]);
+
+    if (help_flag)
+	usage (0);
+
+    if (version_flag) {
+	print_version(NULL);
+	exit(0);
+    }
+
+    argc -= optidx;
+    argv += optidx;
+
+    if (argc != 0)
+	usage(1);
+
+    {
+	char **files;
+
+	if(config_file == NULL)
+	    config_file = _PATH_KCM_CONF;
+
+	ret = krb5_prepend_config_files_default(config_file, &files);
+	if (ret)
+	    krb5_err(kcm_context, 1, ret, "getting configuration files");
+
+	ret = krb5_set_config_files(kcm_context, files);
+	krb5_free_config_files(files);
+	if(ret)
+	    krb5_err(kcm_context, 1, ret, "reading configuration files");
+    }
+
+    if (max_request_str) {
+        int64_t bytes;
+
+        if ((bytes = parse_bytes(max_request_str, NULL)) < 0)
+            krb5_errx(kcm_context, 1,
+                      "--max-request size must be non-negative");
+        if (bytes > MAX_REQUEST_MAX)
+            krb5_errx(kcm_context, 1, "--max-request size is too big "
+                      "(must be smaller than %lld)", MAX_REQUEST_MAX);
+
+        max_request = bytes;
+    }
+
+    if(max_request == 0){
+	p = krb5_config_get_string (kcm_context,
+				    NULL,
+				    "kcm",
+				    "max-request",
+				    NULL);
+        if (p) {
+            int64_t bytes;
+
+            if ((bytes = parse_bytes(max_request_str, NULL)) < 0)
+                krb5_errx(kcm_context, 1,
+                          "[kcm] max-request size must be non-negative");
+            if (bytes > MAX_REQUEST_MAX)
+                krb5_errx(kcm_context, 1, "[kcm] max-request size is too big "
+                          "(must be smaller than %lld)", MAX_REQUEST_MAX);
+
+            max_request = bytes;
+        }
+    }
+
+    if (system_principal == NULL) {
+	system_principal = kcm_system_config_get_string("principal");
+    }
+
+    if (system_principal != NULL) {
+	ret = ccache_init_system();
+	if (ret)
+	    krb5_err(kcm_context, 1, ret, "initializing system ccache");
+    }
+
+    if(automatic_renewal == -1)
+	automatic_renewal = krb5_config_get_bool_default(kcm_context, NULL,
+							 TRUE,
+							 "kcm",
+							 "automatic_renewal",
+							 NULL);
+
+    if(detach_from_console == -1)
+	detach_from_console = krb5_config_get_bool_default(kcm_context, NULL,
+							   FALSE,
+							   "kcm",
+							   "detach", NULL);
+    kcm_openlog();
+    if(max_request == 0)
+	max_request = 64 * 1024;
+}
+