audit_scf.c revision f89940742f5d14dde79b69b98a414dd7b7f585c7
2N/A/*
2N/A * CDDL HEADER START
2N/A *
2N/A * The contents of this file are subject to the terms of the
2N/A * Common Development and Distribution License (the "License").
2N/A * You may not use this file except in compliance with the License.
2N/A *
2N/A * You can obtain a copy of the license at usr/src/OPENSOLARIS.LICENSE
2N/A * or http://www.opensolaris.org/os/licensing.
2N/A * See the License for the specific language governing permissions
2N/A * and limitations under the License.
2N/A *
2N/A * When distributing Covered Code, include this CDDL HEADER in each
2N/A * file and include the License file at usr/src/OPENSOLARIS.LICENSE.
2N/A * If applicable, add the following below this CDDL HEADER, with the
2N/A * fields enclosed by brackets "[]" replaced with your own identifying
2N/A * information: Portions Copyright [yyyy] [name of copyright owner]
2N/A *
2N/A * CDDL HEADER END
2N/A */
2N/A/*
2N/A * Copyright (c) 2009, 2010, Oracle and/or its affiliates. All rights reserved.
2N/A */
2N/A
2N/A/* auditd smf(5)/libscf(3LIB) interface - set and display audit parameters */
2N/A#include <audit_scf.h>
2N/A#include <audit_policy.h>
2N/A
2N/A/* propvec array must be NULL terminated */
2N/Ascf_propvec_t prop_vect[MAX_PROPVECS + 1];
2N/A
/*
* prt_error() - prt_error_va() wrapper; see prt_error_va() for more contextual
* information. Note, that the function disregards errno; if you need to print
* out strerror()/errno use directly prt_error_va().
* Inputs - program error format and message.
*/
/*PRINTFLIKE1*/
static void
prt_error(char *fmt, ...)
{
va_list args;
errno = 0;
va_start(args, fmt);
prt_error_va(fmt, args);
va_end(args);
}
/*
* prt_error_va() - prints an error message along with corresponding system
* error number. Inputs - program error format and the va_list already prepared
* by the preceding functions.
*
*/
/*PRINTFLIKE1*/
void
prt_error_va(char *fmt, va_list args)
{
(void) vfprintf(stderr, fmt, args);
(void) fputc('\n', stderr);
if (errno)
(void) fprintf(stderr, "error: %s(%d)\n",
strerror(errno), errno);
(void) fflush(stderr);
}
/*
* prt_scf_err() - scf_error()/scf_strerror() wrapper.
*/
static void
prt_scf_err(void)
{
(void) fprintf(stderr, "error: %s\n", scf_strerror(scf_error()));
}
/*
* add_prop_vect_scf() - adds vector to the array of vectors later passed to
* get_/set_val_scf(). The first argument (vector) points to particular position
* in the vector of properties.
*/
static void
add_prop_vect_scf(scf_propvec_t *vector, const char *prop_str,
scf_type_t prop_type, void *prop_val_ptr)
{
vector->pv_prop = prop_str;
vector->pv_type = prop_type;
vector->pv_ptr = prop_val_ptr;
}
/*
* get_val_scf() - get a property values from the audit service
*
* Arguments: vector = pointers to the head end of array of property vectors
* pgroup_str = property group of property in AUDITD_FMRI
*
*/
static boolean_t
get_val_scf(scf_propvec_t *vector, char *pgroup_str)
{
scf_propvec_t *bad_prop_vec = NULL;
/*
* Get the property vector from the editing snapshot (B_FALSE).
* For documentation on property vectors see <libscf_priv.h>.
*/
if (scf_read_propvec(AUDITD_FMRI, pgroup_str, B_FALSE, vector,
&bad_prop_vec) != SCF_SUCCESS) {
prt_scf_err();
if (bad_prop_vec != NULL) {
prt_error(gettext("Reading the %s property in the %s "
"property group failed.\n"), bad_prop_vec->pv_prop,
pgroup_str);
}
return (B_FALSE);
}
return (B_TRUE);
}
/*
* set_val_scf() - set property values of the audit service.
*
* arguments: vector = pointers to the head end of array of property vectors
* pgroup_str = property group of property in AUDITD_FMRI
*
*/
static boolean_t
set_val_scf(scf_propvec_t *vector, char *pgroup_str)
{
scf_propvec_t *bad_prop_vec = NULL;
/* for documentation on property vectors see <libscf_priv.h> */
if (scf_write_propvec(AUDITD_FMRI, pgroup_str, vector,
&bad_prop_vec) != SCF_SUCCESS) {
prt_scf_err();
if (bad_prop_vec != NULL) {
prt_error(gettext("Setting the %s property in the %s "
"property group failed.\n"), bad_prop_vec->pv_prop,
pgroup_str);
}
return (B_FALSE);
}
return (B_TRUE);
}
/*
* free_prop_vect() - deallocate heap memory used for propvect values.
*/
static void
free_prop_vect(void)
{
scf_propvec_t *prop_vect_ptr;
prop_vect_ptr = prop_vect;
while (prop_vect_ptr->pv_prop != NULL) {
if (stack_inbounds(prop_vect_ptr->pv_ptr) == 0) {
free(prop_vect_ptr->pv_ptr);
}
prop_vect_ptr++;
}
}
/*
* chk_prop_vect() - check for prop_vect boundaries and possibly process
* (typically) full prop_vect.
*/
static boolean_t
chk_prop_vect(scf_propvec_t **prop_vect_ptr, char *pgrp_str)
{
if (*prop_vect_ptr < prop_vect ||
*prop_vect_ptr >= (prop_vect + MAX_PROPVECS)) {
DPRINT((dbfp, "prop_vect is full; flushing\n"));
if (!set_val_scf(prop_vect, pgrp_str)) {
return (B_FALSE);
}
free_prop_vect();
bzero(prop_vect, sizeof (prop_vect));
*prop_vect_ptr = prop_vect;
}
return (B_TRUE);
}
/*
* get_props_kva_all() - get all properties and fill in the plugin_kva.
*/
static boolean_t
get_props_kva_all(asi_scfhandle_t *handle, asi_scfhandle_iter_t *handle_iter,
kva_t **plugin_kva)
{
char key_buf[PLUGIN_MAXKEY];
char val_buf[PLUGIN_MAXVAL];
char attr_string[PLUGIN_MAXATT];
char attr_buf[PLUGIN_MAXATT];
int len = 0;
scf_type_t prop_type;
attr_string[0] = 0;
attr_buf[0] = 0;
while (scf_iter_next_property(handle_iter->prop, handle->prop) == 1) {
if (scf_property_get_name(handle->prop, key_buf,
PLUGIN_MAXKEY) == -1) {
prt_scf_err();
return (B_FALSE);
}
/*
* We do not fully support multi-valued properties.
* scf_property_get_value() only supports single-valued
* properties. It returns SCF_ERROR_CONSTRAINT_VIOLATED and one
* of the property values. The audit service configuration
* values are all single-valued properties. The authorizations
* to configure and read the audit service properties may be
* multi-valued, these may safely be ignored here as not an
* error.
*/
if (scf_property_get_value(handle->prop,
handle_iter->prop_val) != 0 &&
scf_error() != SCF_ERROR_CONSTRAINT_VIOLATED) {
prt_scf_err();
return (B_FALSE);
}
if (scf_property_type(handle->prop, &prop_type) == -1) {
prt_scf_err();
return (B_FALSE);
}
switch (prop_type) {
case SCF_TYPE_BOOLEAN: {
uint8_t pval_bool;
if (scf_value_get_boolean(handle_iter->prop_val,
&pval_bool) == -1) {
prt_scf_err();
return (B_FALSE);
}
len = snprintf(attr_buf, PLUGIN_MAXATT, "%s=%d;",
key_buf, pval_bool);
if (len < 0 || len >= PLUGIN_MAXATT) {
prt_error(gettext("Too long attribute: %s\n"),
key_buf);
return (B_FALSE);
}
if (strlcat(attr_string, attr_buf, PLUGIN_MAXATT) >=
PLUGIN_MAXATT) {
prt_error(gettext("Too long attribute string: "
"%s\n"), key_buf);
return (B_FALSE);
}
break;
}
case SCF_TYPE_ASTRING: {
if (scf_value_get_as_string(handle_iter->prop_val,
val_buf, PLUGIN_MAXATT) == -1) {
prt_scf_err();
return (B_FALSE);
}
len = snprintf(attr_buf, PLUGIN_MAXATT, "%s=%s;",
key_buf, val_buf);
if (len < 0 || len >= PLUGIN_MAXATT) {
prt_error(gettext("Too long attribute: %s\n"),
key_buf);
return (B_FALSE);
}
if (strlcat(attr_string, attr_buf, PLUGIN_MAXATT) >=
PLUGIN_MAXATT) {
prt_error(gettext("Too long attribute string: "
"%s\n"), key_buf);
return (B_FALSE);
}
break;
}
case SCF_TYPE_COUNT: {
uint64_t pval_count;
if (scf_value_get_count(handle_iter->prop_val,
&pval_count) == -1) {
prt_scf_err();
return (B_FALSE);
}
len = snprintf(attr_buf, PLUGIN_MAXATT, "%s=%llu;",
key_buf, pval_count);
if (len < 0 || len >= PLUGIN_MAXATT) {
prt_error(gettext("Too long attribute: %s\n"),
key_buf);
return (B_FALSE);
}
if (strlcat(attr_string, attr_buf, PLUGIN_MAXATT) >=
PLUGIN_MAXATT) {
prt_error(gettext("Too long attribute string: "
"%s\n"), key_buf);
return (B_FALSE);
}
break;
}
default:
(void) printf("Unsupported value type %s [%d]\n",
key_buf, prop_type);
break;
}
}
if (*attr_string == '\0' ||
(*plugin_kva = _str2kva(attr_string, "=", ";")) == NULL) {
prt_error(gettext("Empty or invalid attribute string."));
return (B_FALSE);
}
return (B_TRUE);
}
/*
* get_plugin_kva() - get and save config attributes of given plugin plugin_str
* (or all plugins in case plugin_str == NULL) into scf_plugin_kva_node_t.
*/
static boolean_t
get_plugin_kva(asi_scfhandle_t *handle, asi_scfhandle_iter_t *handle_iter,
scf_plugin_kva_node_t **plugin_kva_ll, char *plugin_str)
{
scf_plugin_kva_node_t *node = NULL;
scf_plugin_kva_node_t *node_prev = NULL;
scf_plugin_kva_node_t *node_head = NULL;
char plugin_str_tmp[PLUGIN_MAXBUF];
bzero(plugin_str_tmp, PLUGIN_MAXBUF);
if (scf_iter_instance_pgs_typed(handle_iter->pgrp, handle->inst,
(const char *)"plugin") == -1) {
prt_scf_err();
return (B_FALSE);
}
while (scf_iter_next_pg(handle_iter->pgrp, handle->pgrp) == 1) {
if (scf_pg_get_name(handle->pgrp, plugin_str_tmp,
PLUGIN_MAXBUF) == -1) {
prt_scf_err();
plugin_kva_ll_free(node);
return (B_FALSE);
}
if (plugin_str != NULL &&
strcmp(plugin_str_tmp, plugin_str) != 0) {
continue;
}
if ((node =
calloc(1, sizeof (scf_plugin_kva_node_t))) == NULL) {
prt_error(gettext("No available memory."));
plugin_kva_ll_free(node_prev);
return (B_FALSE);
}
if (node_head == NULL) {
node_head = node;
}
if (node_prev != NULL) {
node_prev->next = node;
node->prev = node_prev;
}
node_prev = node;
(void) strlcat((char *)&(node->plugin_name), plugin_str_tmp,
PLUGIN_MAXBUF);
if (scf_iter_pg_properties(handle_iter->prop,
handle->pgrp) != 0) {
prt_scf_err();
plugin_kva_ll_free(node);
return (B_FALSE);
}
if (!get_props_kva_all(handle, handle_iter,
&(node->plugin_kva))) {
plugin_kva_ll_free(node);
return (B_FALSE);
}
}
#if DEBUG
{
scf_plugin_kva_node_t *node_debug = node_head;
char attr_string[PLUGIN_MAXATT];
while (node_debug != NULL) {
if (_kva2str(node_debug->plugin_kva, attr_string,
PLUGIN_MAXATT, "=", ";") == 0) {
DPRINT((dbfp, "Found plugin - %s: %s\n",
node_debug->plugin_name, attr_string));
} else {
DPRINT((dbfp, "Could not get attribute string "
"for %s\n", node_debug->plugin_name));
}
node_debug = node_debug->prev;
}
}
#endif
*plugin_kva_ll = node_head;
return (B_TRUE);
}
/*
* scf_free() - free scf handles
*/
static void
scf_free(asi_scfhandle_t *handle)
{
if (handle == NULL) {
return;
}
if (handle->prop != NULL) {
scf_property_destroy(handle->prop);
}
if (handle->pgrp != NULL) {
scf_pg_destroy(handle->pgrp);
}
if (handle->inst != NULL) {
scf_instance_destroy(handle->inst);
}
if (handle->hndl != NULL) {
if (scf_handle_unbind(handle->hndl) == -1) {
prt_error(gettext("Internal error."));
prt_scf_err();
}
scf_handle_destroy(handle->hndl);
}
}
/*
* scf_init() - initiate scf handles
*/
static boolean_t
scf_init(asi_scfhandle_t *handle)
{
bzero(handle, sizeof (asi_scfhandle_t));
if ((handle->hndl = scf_handle_create(SCF_VERSION)) == NULL ||
scf_handle_bind(handle->hndl) != 0) {
goto err_out;
}
if ((handle->inst = scf_instance_create(handle->hndl)) == NULL) {
goto err_out;
}
if ((handle->pgrp = scf_pg_create(handle->hndl)) == NULL) {
goto err_out;
}
if ((handle->prop = scf_property_create(handle->hndl)) == NULL) {
goto err_out;
}
return (B_TRUE);
err_out:
prt_scf_err();
scf_free(handle);
return (B_FALSE);
}
/*
* scf_free_iter() - free scf iter handles
*/
static void
scf_free_iter(asi_scfhandle_iter_t *handle_iter)
{
if (handle_iter == NULL) {
return;
}
if (handle_iter->pgrp != NULL) {
scf_iter_destroy(handle_iter->pgrp);
}
if (handle_iter->prop != NULL) {
scf_iter_destroy(handle_iter->prop);
}
if (handle_iter->prop_val != NULL) {
scf_value_destroy(handle_iter->prop_val);
}
}
/*
* scf_init_iter() - initiate scf iter handles
*/
static boolean_t
scf_init_iter(asi_scfhandle_iter_t *handle_iter,
asi_scfhandle_t *handle)
{
bzero(handle_iter, sizeof (asi_scfhandle_iter_t));
if ((handle_iter->pgrp = scf_iter_create(handle->hndl)) == NULL) {
goto err_out;
}
if ((handle_iter->prop = scf_iter_create(handle->hndl)) == NULL) {
goto err_out;
}
if ((handle_iter->prop_val = scf_value_create(handle->hndl)) == NULL) {
goto err_out;
}
return (B_TRUE);
err_out:
prt_scf_err();
scf_free_iter(handle_iter);
return (B_FALSE);
}
/*
* chk_policy_context() - does some policy based checks, checks the context
* (zone, smf) in which the policy could make some sense.
*/
static boolean_t
chk_policy_context(char *policy_str)
{
/*
* "all" and "none" policy flags, since they represent
* sub/set of auditing policies, are not stored in the
* AUDITD_FMRI service instance configuration.
*/
DPRINT((dbfp, "Walking policy - %s: ", policy_str));
if (strcmp("all", policy_str) == 0 ||
strcmp("none", policy_str) == 0) {
DPRINT((dbfp, "skipped\n"));
return (B_FALSE);
}
/*
* In the local zone (!= GLOBAL_ZONEID) we do not touch
* "ahlt" and "perzone" policy flags, since these are
* relevant only in the global zone.
*/
if ((getzoneid() != GLOBAL_ZONEID) &&
(strcmp("ahlt", policy_str) == 0 ||
strcmp("perzone", policy_str) == 0)) {
DPRINT((dbfp, "skipped\n"));
return (B_FALSE);
}
return (B_TRUE);
}
/*
* free_static_att_kva() - free hardcoded/static plugin attributes (key/value
* pairs) from the kva plugin structure.
*/
void
free_static_att_kva(kva_t *plugin_kva)
{
_kva_free_value(plugin_kva, PLUGIN_ACTIVE);
_kva_free_value(plugin_kva, PLUGIN_PATH);
_kva_free_value(plugin_kva, PLUGIN_QSIZE);
_kva_free_value(plugin_kva, "read_authorization");
_kva_free_value(plugin_kva, "value_authorization");
}
/*
* do_getqctrl_scf() - get the values of qctrl properties of the audit service
*/
boolean_t
do_getqctrl_scf(struct au_qctrl *cval)
{
scf_propvec_t *prop_vect_ptr;
scf_qctrl_t cval_scf;
bzero(prop_vect, sizeof (prop_vect));
prop_vect_ptr = prop_vect;
add_prop_vect_scf(prop_vect_ptr++, QUEUECTRL_QHIWATER,
SCF_TYPE_COUNT, &cval_scf.scf_qhiwater);
add_prop_vect_scf(prop_vect_ptr++, QUEUECTRL_QLOWATER,
SCF_TYPE_COUNT, &cval_scf.scf_qlowater);
add_prop_vect_scf(prop_vect_ptr++, QUEUECTRL_QBUFSZ,
SCF_TYPE_COUNT, &cval_scf.scf_qbufsz);
add_prop_vect_scf(prop_vect_ptr, QUEUECTRL_QDELAY,
SCF_TYPE_COUNT, &cval_scf.scf_qdelay);
if (!get_val_scf(prop_vect, ASI_PGROUP_QUEUECTRL)) {
return (B_FALSE);
}
cval->aq_hiwater = (size_t)cval_scf.scf_qhiwater;
cval->aq_lowater = (size_t)cval_scf.scf_qlowater;
cval->aq_bufsz = (size_t)cval_scf.scf_qbufsz;
cval->aq_delay = (clock_t)cval_scf.scf_qdelay;
scf_clean_propvec(prop_vect);
return (B_TRUE);
}
/*
* do_getqbufsz_scf() - get the qbufsz audit service property value
*/
boolean_t
do_getqbufsz_scf(size_t *cval)
{
uint64_t cval_l;
bzero(prop_vect, sizeof (prop_vect));
add_prop_vect_scf(prop_vect, QUEUECTRL_QBUFSZ, SCF_TYPE_COUNT, &cval_l);
if (!get_val_scf(prop_vect, ASI_PGROUP_QUEUECTRL)) {
return (B_FALSE);
}
*cval = (size_t)cval_l;
return (B_TRUE);
}
/*
* do_getqdelay_scf() - get the qdelay audit service property value
*/
boolean_t
do_getqdelay_scf(clock_t *cval)
{
uint64_t cval_l;
bzero(prop_vect, sizeof (prop_vect));
add_prop_vect_scf(prop_vect, QUEUECTRL_QDELAY, SCF_TYPE_COUNT, &cval_l);
if (!get_val_scf(prop_vect, ASI_PGROUP_QUEUECTRL)) {
return (B_FALSE);
}
*cval = (clock_t)cval_l;
return (B_TRUE);
}
/*
* do_getqhiwater_scf() - get the qhiwater audit service property value
*/
boolean_t
do_getqhiwater_scf(size_t *cval)
{
uint64_t cval_l;
bzero(prop_vect, sizeof (prop_vect));
add_prop_vect_scf(prop_vect, QUEUECTRL_QHIWATER, SCF_TYPE_COUNT,
&cval_l);
if (!get_val_scf(prop_vect, ASI_PGROUP_QUEUECTRL)) {
return (B_FALSE);
}
*cval = (size_t)cval_l;
return (B_TRUE);
}
/*
* do_getqlowater_scf() - get the qlowater audit service property value
*/
boolean_t
do_getqlowater_scf(size_t *cval)
{
uint64_t cval_l;
bzero(prop_vect, sizeof (prop_vect));
add_prop_vect_scf(prop_vect, QUEUECTRL_QLOWATER, SCF_TYPE_COUNT,
&cval_l);
if (!get_val_scf(prop_vect, ASI_PGROUP_QUEUECTRL)) {
return (B_FALSE);
}
*cval = (size_t)cval_l;
return (B_TRUE);
}
/*
* do_getpolicy_scf() - get the audit policy flags from service
*/
boolean_t
do_getpolicy_scf(uint32_t *policy_mask)
{
int i;
scf_propvec_t *prop_vect_ptr;
char *cur_policy_str;
policy_sw_t policy_arr[POLICY_TBL_SZ + 1];
policy_sw_t *policy_arr_ptr;
prop_vect_ptr = prop_vect;
policy_arr_ptr = policy_arr;
bzero(prop_vect, sizeof (prop_vect));
bzero(policy_arr, sizeof (policy_arr));
/* prepare the smf(5) query */
for (i = 0; i < POLICY_TBL_SZ; i++) {
cur_policy_str = policy_table[i].policy_str;
/* Do some basic policy dependent checks */
if (!chk_policy_context(cur_policy_str)) {
continue;
}
DPRINT((dbfp, "will be queried\n"));
add_prop_vect_scf(prop_vect_ptr++, cur_policy_str,
SCF_TYPE_BOOLEAN, &policy_arr_ptr->flag);
policy_arr_ptr->policy = cur_policy_str;
policy_arr_ptr++;
}
if (!get_val_scf(prop_vect, ASI_PGROUP_POLICY)) {
return (B_FALSE);
}
/* set the policy mask */
policy_arr_ptr = policy_arr;
*policy_mask = 0;
while (policy_arr_ptr->policy != NULL) {
if (policy_arr_ptr->flag) {
*policy_mask |= get_policy(policy_arr_ptr->policy);
}
policy_arr_ptr++;
}
return (B_TRUE);
}
/*
* do_setpolicy_scf() - sets the policy flags in audit service configuration
*/
boolean_t
do_setpolicy_scf(uint32_t policy)
{
int i;
char *cur_policy_str;
scf_propvec_t *prop_vect_ptr;
boolean_t bool_arr[POLICY_TBL_SZ];
boolean_t *bool_arr_ptr;
prop_vect_ptr = prop_vect;
bool_arr_ptr = bool_arr;
bzero(prop_vect, sizeof (prop_vect));
bzero(bool_arr, sizeof (bool_arr));
for (i = 0; i < POLICY_TBL_SZ; i++) {
cur_policy_str = policy_table[i].policy_str;
/* Do some basic policy dependent checks */
if (!chk_policy_context(cur_policy_str)) {
continue;
}
if (policy_table[i].policy_mask & policy) {
*bool_arr_ptr = B_TRUE;
} else {
*bool_arr_ptr = B_FALSE;
}
DPRINT((dbfp, "%s%s\n", (*bool_arr_ptr == B_TRUE ? "+" : "-"),
cur_policy_str));
add_prop_vect_scf(prop_vect_ptr++, cur_policy_str,
SCF_TYPE_BOOLEAN, bool_arr_ptr++);
}
return (set_val_scf(prop_vect, ASI_PGROUP_POLICY));
}
/*
* do_setqctrl_scf() - set the values of qctrl properties of the audit service
*/
boolean_t
do_setqctrl_scf(struct au_qctrl *cval)
{
scf_propvec_t *prop_vect_ptr;
scf_qctrl_t cval_scf;
if (!CHK_BDRY_QHIWATER(cval->aq_lowater, cval->aq_hiwater) &&
cval->aq_hiwater != 0) {
(void) printf(gettext("Specified audit queue hiwater mark is "
"outside of allowed boundaries.\n"));
return (B_FALSE);
}
if (!CHK_BDRY_QLOWATER(cval->aq_lowater, cval->aq_hiwater) &&
cval->aq_lowater != 0) {
(void) printf(gettext("Specified audit queue lowater mark is "
"outside of allowed boundaries.\n"));
return (B_FALSE);
}
if (!CHK_BDRY_QBUFSZ(cval->aq_bufsz) && cval->aq_bufsz != 0) {
(void) printf(gettext("Specified audit queue buffer size is "
"outside of allowed boundaries.\n"));
return (B_FALSE);
}
if (!CHK_BDRY_QDELAY(cval->aq_delay) && cval->aq_delay != 0) {
(void) printf(gettext("Specified audit queue delay is "
"outside of allowed boundaries.\n"));
return (B_FALSE);
}
cval_scf.scf_qhiwater = (uint64_t)cval->aq_hiwater;
cval_scf.scf_qlowater = (uint64_t)cval->aq_lowater;
cval_scf.scf_qbufsz = (uint64_t)cval->aq_bufsz;
cval_scf.scf_qdelay = (uint64_t)cval->aq_delay;
bzero(prop_vect, sizeof (prop_vect));
prop_vect_ptr = prop_vect;
add_prop_vect_scf(prop_vect_ptr++, QUEUECTRL_QHIWATER, SCF_TYPE_COUNT,
&cval_scf.scf_qhiwater);
add_prop_vect_scf(prop_vect_ptr++, QUEUECTRL_QLOWATER, SCF_TYPE_COUNT,
&cval_scf.scf_qlowater);
add_prop_vect_scf(prop_vect_ptr++, QUEUECTRL_QBUFSZ, SCF_TYPE_COUNT,
&cval_scf.scf_qbufsz);
add_prop_vect_scf(prop_vect_ptr, QUEUECTRL_QDELAY, SCF_TYPE_COUNT,
&cval_scf.scf_qdelay);
return (set_val_scf(prop_vect, ASI_PGROUP_QUEUECTRL));
}
/*
* do_setqbufsz_scf() - set the qbufsz property value of the audit service
*/
boolean_t
do_setqbufsz_scf(size_t *cval)
{
uint64_t cval_l;
if (!CHK_BDRY_QBUFSZ(*cval) && *cval != 0) {
(void) printf(gettext("Specified audit queue buffer size is "
"outside of allowed boundaries.\n"));
return (B_FALSE);
}
cval_l = (uint64_t)*cval;
bzero(prop_vect, sizeof (prop_vect));
add_prop_vect_scf(prop_vect, QUEUECTRL_QBUFSZ, SCF_TYPE_COUNT, &cval_l);
return (set_val_scf(prop_vect, ASI_PGROUP_QUEUECTRL));
}
/*
* do_setqdelay_scf() - set the qdelay property value of the audit service
*/
boolean_t
do_setqdelay_scf(clock_t *cval)
{
uint64_t cval_l;
if (!CHK_BDRY_QDELAY(*cval) && *cval != 0) {
(void) printf(gettext("Specified audit queue delay is "
"outside of allowed boundaries.\n"));
return (B_FALSE);
}
cval_l = (uint64_t)*cval;
bzero(prop_vect, sizeof (prop_vect));
add_prop_vect_scf(prop_vect, QUEUECTRL_QDELAY, SCF_TYPE_COUNT, &cval_l);
return (set_val_scf(prop_vect, ASI_PGROUP_QUEUECTRL));
}
/*
* do_setqhiwater_scf() - set the qhiwater property value of the audit service
*/
boolean_t
do_setqhiwater_scf(size_t *cval)
{
uint64_t cval_l;
size_t cval_lowater;
if (!do_getqlowater_scf(&cval_lowater)) {
(void) printf(gettext("Could not get configured value of "
"queue lowater mark.\n"));
return (B_FALSE);
}
if (cval_lowater == 0) {
cval_lowater = AQ_MINLOW;
}
if (!CHK_BDRY_QHIWATER(cval_lowater, *cval) && *cval != 0) {
(void) printf(gettext("Specified audit queue hiwater mark is "
"outside of allowed boundaries.\n"));
return (B_FALSE);
}
cval_l = (uint64_t)*cval;
bzero(prop_vect, sizeof (prop_vect));
add_prop_vect_scf(prop_vect, QUEUECTRL_QHIWATER, SCF_TYPE_COUNT,
&cval_l);
return (set_val_scf(prop_vect, ASI_PGROUP_QUEUECTRL));
}
/*
* do_setqlowater_scf() - set the qlowater property value of the audit service
*/
boolean_t
do_setqlowater_scf(size_t *cval)
{
uint64_t cval_l;
size_t cval_hiwater;
if (!do_getqhiwater_scf(&cval_hiwater)) {
(void) printf(gettext("Could not get configured value of "
"queue hiwater mark.\n"));
return (B_FALSE);
}
if (cval_hiwater == 0) {
cval_hiwater = AQ_MAXHIGH;
}
if (!CHK_BDRY_QLOWATER(*cval, cval_hiwater) && *cval != 0) {
(void) printf(gettext("Specified audit queue lowater mark is "
"outside of allowed boundaries.\n"));
return (B_FALSE);
}
cval_l = (uint64_t)*cval;
bzero(prop_vect, sizeof (prop_vect));
add_prop_vect_scf(prop_vect, QUEUECTRL_QLOWATER, SCF_TYPE_COUNT,
&cval_l);
return (set_val_scf(prop_vect, ASI_PGROUP_QUEUECTRL));
}
/*
* do_getflags_scf() - get the audit attributable flags from service
*/
boolean_t
do_getflags_scf(char **flags)
{
bzero(prop_vect, sizeof (prop_vect));
add_prop_vect_scf(prop_vect, PRESELECTION_FLAGS, SCF_TYPE_ASTRING,
flags);
if (!get_val_scf(prop_vect, ASI_PGROUP_PRESELECTION)) {
return (B_FALSE);
}
return (B_TRUE);
}
/*
* do_getnaflags_scf() - get the audit non-attributable flags from service
*/
boolean_t
do_getnaflags_scf(char **naflags)
{
bzero(prop_vect, sizeof (prop_vect));
add_prop_vect_scf(prop_vect, PRESELECTION_NAFLAGS, SCF_TYPE_ASTRING,
naflags);
if (!get_val_scf(prop_vect, ASI_PGROUP_PRESELECTION)) {
return (B_FALSE);
}
return (B_TRUE);
}
/*
* do_setflags_scf() - set the attributable mask property value of the audit
* service
*/
boolean_t
do_setflags_scf(char *flags)
{
bzero(prop_vect, sizeof (prop_vect));
add_prop_vect_scf(prop_vect, PRESELECTION_FLAGS, SCF_TYPE_ASTRING,
flags);
return (set_val_scf(prop_vect, ASI_PGROUP_PRESELECTION));
}
/*
* do_setnaflags_scf() - set the attributable mask property value of the audit
* service
*/
boolean_t
do_setnaflags_scf(char *naflags)
{
bzero(prop_vect, sizeof (prop_vect));
add_prop_vect_scf(prop_vect, PRESELECTION_NAFLAGS, SCF_TYPE_ASTRING,
naflags);
return (set_val_scf(prop_vect, ASI_PGROUP_PRESELECTION));
}
/*
* plugin_avail_scf() - look for the plugin in the audit service configuration
*/
boolean_t
plugin_avail_scf(const char *plugin_str)
{
scf_simple_handle_t *sh;
if (plugin_str == NULL || *plugin_str == '\0') {
return (B_FALSE);
}
if ((sh = scf_general_pg_setup(AUDITD_FMRI, plugin_str)) == NULL) {
DPRINT((dbfp, "No such plugin found: %s (%s)\n", plugin_str,
scf_strerror(scf_error())));
return (B_FALSE);
}
scf_simple_handle_destroy(sh);
return (B_TRUE);
}
/*
* do_getpluginconfig_scf() - get plugin configuration from the audit service
* configuration.
*/
boolean_t
do_getpluginconfig_scf(char *plugin_str, scf_plugin_kva_node_t **plugin_kva_ll)
{
char *asi_fmri;
asi_scfhandle_t handle;
asi_scfhandle_iter_t handle_iter;
boolean_t plugin_all = B_FALSE;
boolean_t rv = B_TRUE;
if (plugin_str == NULL || *plugin_str == '\0') {
if (asprintf(&asi_fmri, "%s", AUDITD_FMRI) == -1) {
prt_error(gettext("Out of memory."));
return (B_FALSE);
}
plugin_all = B_TRUE;
} else {
if (asprintf(&asi_fmri, "%s%s%s", AUDITD_FMRI,
SCF_FMRI_PROPERTYGRP_PREFIX, plugin_str) == -1) {
prt_error(gettext("Out of memory."));
return (B_FALSE);
}
}
DPRINT((dbfp, "%s will be decoded\n", asi_fmri));
if (!scf_init(&handle)) {
prt_error(gettext("Unable to initialize scf handles."));
free(asi_fmri);
return (B_FALSE);
}
if (scf_handle_decode_fmri(handle.hndl, asi_fmri, NULL, NULL,
handle.inst, plugin_all ? NULL : handle.pgrp, NULL,
SCF_DECODE_FMRI_EXACT) == -1) {
prt_scf_err();
scf_free(&handle);
free(asi_fmri);
return (B_FALSE);
}
if (!scf_init_iter(&handle_iter, &handle)) {
prt_error(gettext("Unable to initialize scf iter handles."));
scf_free(&handle);
free(asi_fmri);
return (B_FALSE);
}
if (plugin_all) {
rv = get_plugin_kva(&handle, &handle_iter, plugin_kva_ll, NULL);
} else {
rv = get_plugin_kva(&handle, &handle_iter, plugin_kva_ll,
plugin_str);
}
scf_free(&handle);
scf_free_iter(&handle_iter);
free(asi_fmri);
return (rv);
}
/*
* do_setpluginconfig_scf() - set plugin configuration in the audit service
* configuration.
*/
boolean_t
do_setpluginconfig_scf(char *plugin_str, boolean_t plugin_state,
char *plugin_att, int plugin_qsize)
{
kva_t *plugin_att_kva = NULL;
char *plugin_att_ptr = plugin_att;
char *plugin_att_clr_ptr = plugin_att;
scf_simple_prop_t *plugin_prop;
scf_type_t plugin_prop_type;
scf_propvec_t *prop_vect_ptr;
int cnt = 0;
kv_t *data;
boolean_t rval = B_TRUE;
uint64_t plugin_qsize_l = (uint64_t)plugin_qsize;
DPRINT((dbfp, "Auditd plugin configuration to be set:\n\tplugin=%s\n\t"
"state=%d (%s)\n\tattributes=%s\n\tqsize=%d%s\n", plugin_str,
plugin_state, plugin_state == B_TRUE ? "active" : "inactive",
plugin_att == NULL ? " (unspecified)" : plugin_att,
plugin_qsize, plugin_qsize == -1 ? " (unspecified)" : ""));
bzero(prop_vect, sizeof (prop_vect));
prop_vect_ptr = prop_vect;
if (plugin_att != NULL) {
/* get rid of white-space chars */
if (*plugin_att_ptr != '\0') {
while (*plugin_att_ptr != '\0') {
if (isspace(*plugin_att_ptr) == 0) {
*plugin_att_clr_ptr++ = *plugin_att_ptr;
}
plugin_att_ptr++;
}
*plugin_att_clr_ptr = '\0';
}
DPRINT((dbfp, "attributes (no white-space): %s\n", plugin_att));
/* allow empty plugin_att */
if (*plugin_att == '\0') {
cnt = 0;
data = NULL;
} else {
plugin_att_kva = _str2kva(plugin_att, "=", ";");
if (plugin_att_kva == NULL) {
prt_error(gettext("Could not parse plugin "
"attributes."));
return (B_FALSE);
}
free_static_att_kva(plugin_att_kva);
cnt = plugin_att_kva->length;
data = plugin_att_kva->data;
}
}
/* set state */
add_prop_vect_scf(prop_vect_ptr++, PLUGIN_ACTIVE, SCF_TYPE_BOOLEAN,
&plugin_state);
DPRINT((dbfp, "Prepared active -> %d\n", plugin_state));
/* set attributes */
while (cnt) {
if (data->value == NULL) {
cnt--;
data++;
continue;
}
if (!chk_prop_vect(&prop_vect_ptr, plugin_str)) {
rval = B_FALSE;
goto err_out;
}
if ((plugin_prop = scf_simple_prop_get(NULL,
AUDITD_FMRI, plugin_str, data->key)) == NULL) {
prt_error(gettext("Could not get configuration for "
"attribute: %s"), data->key);
prt_scf_err();
rval = B_FALSE;
goto err_out;
}
if ((plugin_prop_type = scf_simple_prop_type(plugin_prop))
== -1) {
prt_error(gettext("Could not get property type: %s"),
data->key);
prt_scf_err();
rval = B_FALSE;
goto err_out;
}
switch (plugin_prop_type) {
case SCF_TYPE_BOOLEAN: {
uint8_t *pval_bool;
pval_bool = (uint8_t *)malloc(sizeof (uint8_t));
if (pval_bool == NULL) {
prt_error(gettext("No free memory available."));
rval = B_FALSE;
goto err_out;
}
*pval_bool = (uint8_t)atoi(data->value);
add_prop_vect_scf(prop_vect_ptr++, data->key,
SCF_TYPE_BOOLEAN, pval_bool);
break;
}
case SCF_TYPE_ASTRING: {
char *pval_str;
if ((pval_str = strdup(data->value)) == NULL) {
prt_error(gettext("No free memory available."));
rval = B_FALSE;
goto err_out;
}
add_prop_vect_scf(prop_vect_ptr++, data->key,
SCF_TYPE_ASTRING, pval_str);
break;
}
case SCF_TYPE_COUNT: {
uint64_t *pval_count;
pval_count = (uint64_t *)malloc(sizeof (uint64_t));
if (pval_count == NULL) {
prt_error(gettext("No free memory available."));
rval = B_FALSE;
goto err_out;
}
*pval_count = (uint64_t)atoll(data->value);
add_prop_vect_scf(prop_vect_ptr++, data->key,
SCF_TYPE_COUNT, pval_count);
break;
}
default:
prt_error(gettext("Unsupported property type: %s (%d)"),
data->key, plugin_prop_type);
break;
}
DPRINT((dbfp, "Prepared %s -> %s\n", data->key, data->value));
scf_simple_prop_free(plugin_prop);
data++;
cnt--;
}
if (!chk_prop_vect(&prop_vect_ptr, plugin_str)) {
rval = B_FALSE;
goto err_out;
}
/* set qsize */
if (plugin_qsize != -1) {
add_prop_vect_scf(prop_vect_ptr, PLUGIN_QSIZE, SCF_TYPE_COUNT,
&plugin_qsize_l);
DPRINT((dbfp, "Prepared qsize -> %d\n", plugin_qsize));
}
if (!set_val_scf(prop_vect, plugin_str)) {
rval = B_FALSE;
}
err_out:
free_prop_vect();
_kva_free(plugin_att_kva);
return (rval);
}
/*
* plugin_kva_ll_free() - free the memory used by plugin kva linked list.
*/
void
plugin_kva_ll_free(scf_plugin_kva_node_t *node)
{
scf_plugin_kva_node_t *node_next;
if (node == NULL) {
return;
}
while (node->prev != NULL) {
node = node->prev;
}
while (node != NULL) {
_kva_free(node->plugin_kva);
node_next = node->next;
free(node);
node = node_next;
}
}
/*
* get_policy() - get policy mask entry
*/
uint32_t
get_policy(char *policy)
{
int i;
for (i = 0; i < POLICY_TBL_SZ; i++) {
if (strcasecmp(policy, policy_table[i].policy_str) == 0) {
return (policy_table[i].policy_mask);
}
}
return (0);
}