diff options
Diffstat (limited to 'contrib/netbsd-tests/modules/k_helper/k_helper.c')
| -rw-r--r-- | contrib/netbsd-tests/modules/k_helper/k_helper.c | 202 |
1 files changed, 202 insertions, 0 deletions
diff --git a/contrib/netbsd-tests/modules/k_helper/k_helper.c b/contrib/netbsd-tests/modules/k_helper/k_helper.c new file mode 100644 index 0000000..6a54ccd --- /dev/null +++ b/contrib/netbsd-tests/modules/k_helper/k_helper.c @@ -0,0 +1,202 @@ +/* $NetBSD: k_helper.c,v 1.6 2012/06/03 10:59:44 dsl Exp $ */ +/* + * Copyright (c) 2008 The NetBSD Foundation, 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. + * + * THIS SOFTWARE IS PROVIDED BY THE NETBSD FOUNDATION, INC. 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 FOUNDATION 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 <sys/cdefs.h> +__KERNEL_RCSID(0, "$NetBSD: k_helper.c,v 1.6 2012/06/03 10:59:44 dsl Exp $"); + +#include <sys/param.h> +#include <sys/kernel.h> +#include <sys/module.h> +#include <sys/sysctl.h> + +#include <prop/proplib.h> + +MODULE(MODULE_CLASS_MISC, k_helper, NULL); + +/* --------------------------------------------------------------------- */ +/* Sysctl interface to query information about the module. */ +/* --------------------------------------------------------------------- */ + +/* TODO: Change the integer variables below that represent booleans to + * bools, once sysctl(8) supports CTLTYPE_BOOL nodes. */ + +static struct sysctllog *clogp; +static int present = 1; +static int prop_str_ok; +static char prop_str_val[128]; +static int prop_int_ok; +static int64_t prop_int_val; +static int prop_int_load; + +#define K_HELPER 0x12345678 +#define K_HELPER_PRESENT 0 +#define K_HELPER_PROP_STR_OK 1 +#define K_HELPER_PROP_STR_VAL 2 +#define K_HELPER_PROP_INT_OK 3 +#define K_HELPER_PROP_INT_VAL 4 +#define K_HELPER_PROP_INT_LOAD 5 + +SYSCTL_SETUP(sysctl_k_helper_setup, "sysctl k_helper subtree setup") +{ + + sysctl_createv(clog, 0, NULL, NULL, + CTLFLAG_PERMANENT, + CTLTYPE_NODE, "k_helper", NULL, + NULL, 0, NULL, 0, + CTL_VENDOR, K_HELPER, CTL_EOL); + + sysctl_createv(clog, 0, NULL, NULL, + CTLFLAG_PERMANENT, + CTLTYPE_INT, "present", + SYSCTL_DESCR("Whether the module was loaded or not"), + NULL, 0, &present, 0, + CTL_VENDOR, K_HELPER, K_HELPER_PRESENT, CTL_EOL); + + sysctl_createv(clog, 0, NULL, NULL, + CTLFLAG_PERMANENT, + CTLTYPE_INT, "prop_str_ok", + SYSCTL_DESCR("String property's validity"), + NULL, 0, &prop_str_ok, 0, + CTL_VENDOR, K_HELPER, K_HELPER_PROP_STR_OK, CTL_EOL); + + sysctl_createv(clog, 0, NULL, NULL, + CTLFLAG_PERMANENT, + CTLTYPE_STRING, "prop_str_val", + SYSCTL_DESCR("String property's value"), + NULL, 0, prop_str_val, 0, + CTL_VENDOR, K_HELPER, K_HELPER_PROP_STR_VAL, CTL_EOL); + + sysctl_createv(clog, 0, NULL, NULL, + CTLFLAG_PERMANENT, + CTLTYPE_INT, "prop_int_ok", + SYSCTL_DESCR("String property's validity"), + NULL, 0, &prop_int_ok, 0, + CTL_VENDOR, K_HELPER, K_HELPER_PROP_INT_OK, CTL_EOL); + + sysctl_createv(clog, 0, NULL, NULL, + CTLFLAG_PERMANENT, + CTLTYPE_QUAD, "prop_int_val", + SYSCTL_DESCR("String property's value"), + NULL, 0, &prop_int_val, 0, + CTL_VENDOR, K_HELPER, K_HELPER_PROP_INT_VAL, CTL_EOL); + + sysctl_createv(clog, 0, NULL, NULL, + CTLFLAG_PERMANENT, + CTLTYPE_INT, "prop_int_load", + SYSCTL_DESCR("Status of recursive modload"), + NULL, 0, &prop_int_load, 0, + CTL_VENDOR, K_HELPER, K_HELPER_PROP_INT_LOAD, CTL_EOL); +} + +/* --------------------------------------------------------------------- */ +/* Module management. */ +/* --------------------------------------------------------------------- */ + +static +int +k_helper_init(prop_dictionary_t props) +{ + prop_object_t p; + + p = prop_dictionary_get(props, "prop_str"); + if (p == NULL) + prop_str_ok = 0; + else if (prop_object_type(p) != PROP_TYPE_STRING) + prop_str_ok = 0; + else { + const char *msg = prop_string_cstring_nocopy(p); + if (msg == NULL) + prop_str_ok = 0; + else { + strlcpy(prop_str_val, msg, sizeof(prop_str_val)); + prop_str_ok = 1; + } + } + if (!prop_str_ok) + strlcpy(prop_str_val, "", sizeof(prop_str_val)); + + p = prop_dictionary_get(props, "prop_int"); + if (p == NULL) + prop_int_ok = 0; + else if (prop_object_type(p) != PROP_TYPE_NUMBER) + prop_int_ok = 0; + else { + prop_int_val = prop_number_integer_value(p); + prop_int_ok = 1; + } + if (!prop_int_ok) + prop_int_val = -1; + + p = prop_dictionary_get(props, "prop_recurse"); + if (p != NULL && prop_object_type(p) == PROP_TYPE_STRING) { + const char *recurse_name = prop_string_cstring_nocopy(p); + if (recurse_name != NULL) + prop_int_load = module_load(recurse_name, + MODCTL_NO_PROP, NULL, MODULE_CLASS_ANY); + else + prop_int_load = -1; + } else + prop_int_load = -2; + + sysctl_k_helper_setup(&clogp); + + return 0; +} + +static +int +k_helper_fini(void *arg) +{ + + sysctl_teardown(&clogp); + + return 0; +} + +static +int +k_helper_modcmd(modcmd_t cmd, void *arg) +{ + int ret; + + switch (cmd) { + case MODULE_CMD_INIT: + ret = k_helper_init(arg); + break; + + case MODULE_CMD_FINI: + ret = k_helper_fini(arg); + break; + + case MODULE_CMD_STAT: + default: + ret = ENOTTY; + } + + return ret; +} |
