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/*
* Copyright (c) 2003-2005 Niels Provos <provos@citi.umich.edu>
* All rights reserved.
*
* This program is free software; you can redistribute it and/or modify
* it under the terms of the GNU General Public License as published by
* the Free Software Foundation; either version 2 of the License, or
* (at your option) any later version.
*
* This program is distributed in the hope that it will be useful,
* but WITHOUT ANY WARRANTY; without even the implied warranty of
* MERCHANTABILITY or FITNESS FOR A PARTICULAR PURPOSE. See the
* GNU General Public License for more details.
*
* You should have received a copy of the GNU General Public License
* along with this program; if not, write to the Free Software
* Foundation, Inc., 59 Temple Place, Suite 330, Boston, MA 02111-1307 USA
* This program is free software; you can redistribute it and/or modify
* it under the terms of the GNU General Public License as published by
* the Free Software Foundation; either version 2 of the License, or
* (at your option) any later version.
*
* This program is distributed in the hope that it will be useful,
* but WITHOUT ANY WARRANTY; without even the implied warranty of
* MERCHANTABILITY or FITNESS FOR A PARTICULAR PURPOSE. See the
* GNU General Public License for more details.
*
* You should have received a copy of the GNU General Public License
* along with this program; if not, write to the Free Software
* Foundation, Inc., 59 Temple Place, Suite 330, Boston, MA 02111-1307 USA
*/
#ifndef _TEMPLATE_
#define _TEMPLATE_
#include <assert.h>
struct dhcpclient_req;
struct personality;
struct subsystem;
struct ip_hdr;
struct condition;
struct subsystem_container {
TAILQ_ENTRY(subsystem_container) next;
struct subsystem *sub;
};
TAILQ_HEAD(subsystemqueue, subsystem);
struct template {
SPLAY_ENTRY(template) node;
char *name;
struct porttree ports;
struct action icmp;
struct action tcp;
struct action udp;
struct personality *person;
int id;
uint32_t seq;
int seqcalls;
uint32_t timestamp;
struct timeval tv; /* drifted time */
struct timeval tv_real; /* real wall time */
float drift;
uint16_t drop_inrate;
uint16_t drop_synrate;
uid_t uid;
gid_t gid;
/* Maximum number of file descriptors for spawned process */
int max_nofiles;
TAILQ_HEAD(subsyscontainerqueue, subsystem_container) subsystems;
/* Condition on which this template is activated */
TAILQ_HEAD(conditionqueue, condition) dynamic;
int dynamic_rulenr;
/* Special handling for templates */
int flags;
struct interface *inter;
/* Set when we are to use this ethernet_address */
struct addr *ethernet_addr;
/* Set if we want to assign an IP address via DHCP */
struct dhcpclient_req *dhcp_req;
/* optional spoof source and destination for the reply */
struct spoof spoof;
/* Reference counter */
uint16_t refcnt;
};
#define TEMPLATE_EXTERNAL 0x0001 /* Real machine on external network */
#define TEMPLATE_DYNAMIC 0x0002 /* Pointer to templates */
#define TEMPLATE_DYNAMIC_CHILD 0x0004 /* Is dynamic child */
/* Required to access template from different source files */
SPLAY_HEAD(templtree, template);
int templ_compare(struct template *, struct template *);
SPLAY_PROTOTYPE(templtree, template, node, templ_compare);
struct template *template_create(const char *);
int template_add(struct template *, int, int, struct action *);
int template_subsystem(struct template *, char *, int);
void template_subsystem_start(struct template *tmpl,
struct subsystem *sub);
struct template *template_clone(const char *, const struct template *,
struct interface *, int);
struct template *template_find(const char *);
struct template *template_find_best(const char *, const struct ip_hdr *,
u_short);
void template_list_glob(struct evbuffer *buffer,
const char *pattern);
void template_post_arp(struct template *, struct addr *);
void template_remove_arp(struct template *);
int template_insert_dynamic(struct template *, struct template *,
struct condition *);
#define TEMPLATE_FREE_REGULAR 0x00
#define TEMPLATE_FREE_DEALLOCATE 0x01
void template_free_all(int how);
void template_subsystem_free(struct subsystem *);
void template_subsystem_free_ports(struct subsystem *);
void template_subsystem_list_glob(struct evbuffer *buffer,
const char *pattern);
int templ_compare(struct template *, struct template *);
/* Get a temporary IP address to be used with DHCP */
int template_get_dhcp_address(struct addr *addr);
void template_remove(struct template *);
int template_insert(struct template *);
void template_deallocate(struct template *);
void template_print(struct evbuffer*, struct template *);
/* Iterate across all templates and call the callback function for each */
int template_iterate(int (*f)(struct template *, void *),
void *arg);
#define template_free(x) do { \
if ((x) == NULL) \
break; \
/* Decrease ref counter */ \
(x)->refcnt--; \
if ((x)->refcnt <= 0) \
template_deallocate(x); \
} while (0)
static __inline struct template *
template_ref(struct template *tmpl)
{
if (tmpl != NULL) {
tmpl->refcnt++;
assert(tmpl->refcnt);
}
return (tmpl);
}
void template_test(void);
#endif /* _TEMPLATE_ */
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