| /* ==================================================================== |
| * The Apache Software License, Version 1.1 |
| * |
| * Copyright (c) 2001 The Apache Software Foundation. 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. The end-user documentation included with the redistribution, |
| * if any, must include the following acknowledgment: |
| * "This product includes software developed by the |
| * Apache Software Foundation (http://www.apache.org/)." |
| * Alternately, this acknowledgment may appear in the software itself, |
| * if and wherever such third-party acknowledgments normally appear. |
| * |
| * 4. The names "Apache" and "Apache Software Foundation" must |
| * not be used to endorse or promote products derived from this |
| * software without prior written permission. For written |
| * permission, please contact apache@apache.org. |
| * |
| * 5. Products derived from this software may not be called "Apache", |
| * nor may "Apache" appear in their name, without prior written |
| * permission of the Apache Software Foundation. |
| * |
| * THIS SOFTWARE IS PROVIDED ``AS IS'' AND ANY EXPRESSED 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 APACHE SOFTWARE FOUNDATION OR |
| * ITS 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. |
| * ==================================================================== |
| * |
| * This software consists of voluntary contributions made by many |
| * individuals on behalf of the Apache Software Foundation. For more |
| * information on the Apache Software Foundation, please see |
| * <http://www.apache.org/>. |
| * |
| * Originally developed by Aaron Bannert and Justin Erenkrantz, eBuilt. |
| */ |
| |
| #include <apr_pools.h> |
| #include <apr_errno.h> |
| #include <apr_strings.h> |
| |
| #if APR_HAVE_STRINGS_H |
| #include <strings.h> /* strncasecmp */ |
| #endif |
| #if APR_HAVE_STRING_H |
| #include <string.h> /* strncasecmp */ |
| #endif |
| #if APR_HAVE_STDLIB_H |
| #include <stdlib.h> /* strtol */ |
| #endif |
| #if APR_HAVE_LIMITS_H |
| #include <limits.h> /* strncasecmp */ |
| #endif |
| |
| #include "config.h" |
| #include "flood_profile.h" |
| |
| #include "flood_farmer.h" |
| |
| extern apr_file_t *local_stdout; |
| extern apr_file_t *local_stderr; |
| |
| apr_status_t run_farmer(config_t *config, const char *farmer_name, apr_pool_t *pool) |
| { |
| apr_status_t stat; |
| int count, i, j, useprofile_count; |
| char *xml_farmer, **useprofile_names; |
| struct apr_xml_elem *e, *root_elem, *farmer_elem, *count_elem, *time_elem; |
| apr_pool_t *farmer_pool; |
| apr_time_t stop_time; |
| |
| #ifdef FARMER_DEBUG |
| apr_file_printf(local_stderr, "Running farmer '%s'.\n", |
| farmer_name); |
| #endif /* FARMER_DEBUG */ |
| |
| xml_farmer = apr_pstrdup(pool, XML_FARMER); |
| |
| /* get the root config node */ |
| if ((stat = retrieve_root_xml_elem(&root_elem, config)) != APR_SUCCESS) { |
| return stat; |
| } |
| |
| /* get farmer node from config */ |
| if ((stat = retrieve_xml_elem_with_childmatch( |
| &farmer_elem, root_elem, |
| xml_farmer, XML_FARMER_NAME, farmer_name)) != APR_SUCCESS) |
| return stat; |
| |
| /* get count */ |
| if ((stat = retrieve_xml_elem_child( |
| &count_elem, farmer_elem, XML_FARMER_COUNT)) != APR_SUCCESS) { |
| /* if it's missing, default to 1 */ |
| count = 1; |
| } else { |
| if (count_elem->first_cdata.first && |
| count_elem->first_cdata.first->text) { |
| count = strtol(count_elem->first_cdata.first->text, NULL, 10); |
| if (count == LONG_MAX || count == LONG_MIN) |
| /* error, over/under-flow */ |
| return errno; |
| } else { |
| apr_file_printf(local_stderr, |
| "Farmer '%s' has element <%s> with no value, assuming 1.\n", |
| farmer_name, XML_FARMER_COUNT); |
| count = 1; |
| } |
| } |
| |
| /* get timer (optional) */ |
| stop_time = -1; |
| stat = retrieve_xml_elem_child(&time_elem, farmer_elem, XML_FARMER_TIME); |
| if (stat == APR_SUCCESS && time_elem->first_cdata.first && |
| time_elem->first_cdata.first->text) { |
| char *endptr; |
| stop_time = strtoll(time_elem->first_cdata.first->text, |
| &endptr, 10); |
| if (*endptr != '\0' || stop_time < 0) |
| { |
| apr_file_printf(local_stderr, |
| "Attribute %s has invalid value %s.\n", |
| XML_FARMER_TIME, |
| time_elem->first_cdata.first->text); |
| return APR_EGENERAL; |
| } |
| stop_time *= APR_USEC_PER_SEC; |
| } |
| |
| /* count the number of "useprofile" children */ |
| useprofile_count = count_xml_elem_child(farmer_elem, XML_FARMER_USEPROFILE); |
| |
| if (useprofile_count <= 0) { |
| apr_file_printf(local_stderr, |
| "Farmer '%s' has no <%s> elements to run!\n", |
| farmer_name, XML_FARMER_USEPROFILE); |
| return APR_EGENERAL; |
| } |
| |
| /* create each of the children and put their names in an array */ |
| useprofile_names = apr_palloc(pool, sizeof(char*) * (useprofile_count + 1)); |
| /* set the sentinel (no need for pcalloc()) */ |
| useprofile_names[useprofile_count] = NULL; |
| i = 0; |
| for (e = farmer_elem->first_child; e; e = e->next) { |
| if (strncasecmp(e->name, XML_FARMER_USEPROFILE, |
| FLOOD_STRLEN_MAX) == 0) { |
| useprofile_names[i++] = apr_pstrdup(pool, |
| e->first_cdata.first->text); |
| } |
| } |
| |
| /* now run each of the profiles */ |
| if (stop_time == -1) |
| { |
| for (i = 0; i < count; i++) { |
| if ((stat = apr_pool_create(&farmer_pool, pool)) != APR_SUCCESS) { |
| return stat; |
| } |
| |
| for (j = 0; j < useprofile_count; j++) { |
| if ((stat = run_profile(farmer_pool, config, |
| useprofile_names[j])) != APR_SUCCESS) { |
| return stat; |
| } |
| |
| apr_pool_clear(farmer_pool); |
| } |
| |
| apr_pool_destroy(farmer_pool); |
| } |
| } |
| else |
| { |
| apr_time_t time; |
| time = apr_time_now(); |
| stop_time += time; |
| |
| while (1) |
| { |
| time = apr_time_now(); |
| if (stop_time <= time || time >= stop_time) |
| break; |
| |
| if ((stat = apr_pool_create(&farmer_pool, pool)) != APR_SUCCESS) { |
| return stat; |
| } |
| |
| for (j = 0; j < useprofile_count; j++) { |
| if ((stat = run_profile(farmer_pool, config, |
| useprofile_names[j])) != APR_SUCCESS) { |
| return stat; |
| } |
| |
| apr_pool_clear(farmer_pool); |
| } |
| |
| apr_pool_destroy(farmer_pool); |
| } |
| } |
| |
| return APR_SUCCESS; |
| } |
