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config.c
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config.c
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/*
* Copyright (c) 2002, 2003, 2004 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
*/
#include <sys/types.h>
#include <sys/param.h>
#include "config.h"
#ifdef HAVE_SYS_TIME_H
#include <sys/time.h>
#endif
#include <sys/stat.h>
#include <sys/tree.h>
#include <sys/queue.h>
#include <sys/socket.h>
#include <err.h>
#include <errno.h>
#include <stdio.h>
#include <stdlib.h>
#include <string.h>
#include <syslog.h>
#include <unistd.h>
#include <dnet.h>
#ifdef HAVE_TIME_H
#include <time.h>
#endif
#include <fnmatch.h>
#include <pcap.h>
#undef timeout_pending
#undef timeout_initialized
#include <event.h>
#include "honeyd.h"
#include "personality.h"
#include "template.h"
#include "subsystem.h"
#include "condition.h"
#include "interface.h"
#include "parser.h"
#include "ethernet.h"
#include "arp.h"
#include "pool.h"
#include "dhcpclient.h"
#include "util.h"
#include "log.h"
/* Tailq that holds all subsystems */
struct subsystemqueue subsystems;
/* Tree that contains all templates */
struct templtree templates;
/* Counter for addresses in 169.254/16 that we assign for DHCP */
static uint16_t privip_counter = 1;
int
templ_compare(struct template *a, struct template *b)
{
return (strcmp(a->name, b->name));
}
SPLAY_GENERATE(templtree, template, node, templ_compare);
int
port_compare(struct port *a, struct port *b)
{
int diff;
diff = a->proto - b->proto;
if (diff) {
return (diff);
} else {
/* safe because number in uint16_t */
return ((int)a->number - (int)b->number);
}
}
SPLAY_PROTOTYPE(porttree, port, node, port_compare);
SPLAY_GENERATE(porttree, port, node, port_compare);
void
config_init(void)
{
TAILQ_INIT(&subsystems);
SPLAY_INIT(&templates);
no_spoof.new_src.addr_type = ADDR_TYPE_NONE; /* default is no source spoofing... */
no_spoof.new_dst.addr_type = ADDR_TYPE_NONE; /* ... and no destination spoofing */
}
void
config_read(char *config)
{
extern int honeyd_ignore_parse_errors;
FILE *fp;
if ((fp = fopen(config, "r")) == NULL)
{
syslog(LOG_ERR, "fopen(%s)",config);
exit(EXIT_FAILURE);
}
if (parse_configuration(fp, config) == -1 &&
!honeyd_ignore_parse_errors)
{
syslog(LOG_ERR, "%s: parsing configuration file failed",__func__);
exit(EXIT_FAILURE);
}
fclose(fp);
}
struct template *
template_find(const char *name)
{
struct template tmp;
tmp.name = (char *)name;
return (SPLAY_FIND(templtree, &templates, &tmp));
}
// Dumps IP addresses of DHCP
void template_dump_ips(char* filePath)
{
FILE *fp;
if ((fp = fopen(filePath , "w+")) == NULL)
{
syslog(LOG_WARNING, "Error opening the DHCP IP address dump file");
//warn("Error opening the DHCP IP address dump file");
return;
}
struct template *tmpl;
SPLAY_FOREACH(tmpl, templtree, &templates)
{
if((tmpl->dhcp_req != NULL))
{
if(tmpl->dhcp_req->state == DHREQ_STATE_GOTACK)
{
char hwAddrString[19];
memset(hwAddrString, '\0', sizeof(hwAddrString));
//Only write to the size of the array-1, so that we're sure there's a NULL byte at the end
if(addr_ntop(tmpl->ethernet_addr, hwAddrString, sizeof(hwAddrString) -1) != NULL)
{
fprintf(fp, "%s, %s, %s\n", tmpl->name, hwAddrString, tmpl->inter->if_ent.intf_name);
}
}
}
}
fclose(fp);
}
void
template_list_glob(struct evbuffer *buffer, const char *pattern)
{
struct template *tmpl, *last = NULL;
struct evbuffer *tmp = NULL;
int count = 0;
tmpl = template_find(pattern);
if (tmpl != NULL) {
template_print(buffer, tmpl);
return;
}
if ((tmp = evbuffer_new()) == NULL)
{
syslog(LOG_ERR, "%s: malloc",__func__);
exit(EXIT_FAILURE);
}
SPLAY_FOREACH(tmpl, templtree, &templates) {
/* Ignore it if it does not match */
if (fnmatch(pattern, tmpl->name, 0))
continue;
count++;
evbuffer_add_printf(tmp, "%4d. %s (%s)\n",
count,
tmpl->name,
tmpl->person != NULL ? tmpl->person->name : "undefined");
last = tmpl;
}
if (count == 1) {
template_print(buffer, last);
} else {
evbuffer_add_buffer(buffer, tmp);
}
evbuffer_free(tmp);
}
/*
* Checks if condition for each template in the list is matched.
* Return the first template that we match.
*/
struct template *
template_dynamic(const struct template *tmpl, const struct ip_hdr *ip,
u_short iplen)
{
struct template *save = NULL;
struct condition *cond;
TAILQ_FOREACH(cond, &tmpl->dynamic, next) {
if (save == NULL)
save = cond->tmpl;
/* See if we match this template and return it on success */
if (cond->match == NULL ||
cond->match(cond->tmpl, ip, iplen, cond->match_arg))
return (cond->tmpl);
}
/* We need to return something, so return the first non-NULL */
return (save);
}
struct template *
template_find_best(const char *addr, const struct ip_hdr *ip, u_short iplen)
{
struct template *tmpl;
tmpl = template_find(addr);
if (tmpl == NULL)
tmpl = template_find("default");
if (tmpl != NULL && tmpl->flags & TEMPLATE_DYNAMIC)
tmpl = template_dynamic(tmpl, ip, iplen);
return (tmpl);
}
struct template *
template_create(const char *name)
{
extern rand_t *honeyd_rand;
struct template *tmpl;
if (template_find(name))
return (NULL);
if ((tmpl = calloc(1, sizeof(struct template))) == NULL)
{
syslog(LOG_ERR, "%s: calloc",__func__);
exit(EXIT_FAILURE);
}
tmpl->name = strdup(name);
/* UDP ports are closed by default */
tmpl->udp.status = PORT_CLOSED;
SPLAY_INIT(&tmpl->ports);
SPLAY_INIT(&tmpl->bcasts);
SPLAY_INSERT(templtree, &templates, tmpl);
/* Configured subsystems */
TAILQ_INIT(&tmpl->subsystems);
TAILQ_INIT(&tmpl->dynamic);
/* No spoofing, by default */
tmpl->spoof = no_spoof;
/* Crank ref counter */
tmpl->refcnt++;
/* Create a drift */
tmpl->drift = 1.0 + (rand_uint16(honeyd_rand) % 140 - 70)/100000.0;
return (tmpl);
}
int
template_iterate(int (*f)(struct template *, void *), void *arg)
{
struct template *tmpl;
SPLAY_FOREACH(tmpl, templtree, &templates) {
if ((*f)(tmpl, arg) == -1)
return (-1);
}
return (0);
}
/*
* Removes all configured templates from the system, so that the
* configuration file can be re-read.
*/
void
template_free_all(int how)
{
struct template *tmpl;
while ((tmpl = SPLAY_ROOT(&templates)) != NULL) {
SPLAY_REMOVE(templtree, &templates, tmpl);
if (how == TEMPLATE_FREE_REGULAR)
template_free(tmpl);
else if (!(tmpl->flags & TEMPLATE_DYNAMIC_CHILD))
template_deallocate(tmpl);
}
}
/* Remove a template from the system */
void
template_remove(struct template *tmpl)
{
/* Remove ourselves from the searchable index */
if (template_find(tmpl->name) == tmpl)
SPLAY_REMOVE(templtree, &templates, tmpl);
}
/* Insert a template into the system */
int
template_insert(struct template *tmpl)
{
/* Insert ourselves into the searchable index */
if (template_find(tmpl->name) != NULL)
return (-1);
SPLAY_INSERT(templtree, &templates, tmpl);
struct port *bport;
// Start broadcasts from this honeypot
// TODO refactor this to a template_activate function
if (tmpl->honeypot_instance)
{
SPLAY_FOREACH(bport, porttree, (struct porttree *)&tmpl->bcasts) {
struct timeval every;
every.tv_sec = bport->timeout;
every.tv_usec = 0;
strncpy(bport->templateName, tmpl->name, sizeof(bport->templateName));
struct udp_con *con = calloc(1, sizeof(struct udp_con));
con->port = bport;
struct event *ev1 = event_new(libevent_base, -1, EV_TIMEOUT | EV_PERSIST, &bcast_trigger, (void*)con);
event_add(ev1, &every);
// TODO get rid of event when template destructed and garbage collect the ports
}
}
return (0);
}
void
template_deallocate(struct template *tmpl)
{
struct condition *cond;
struct port *port;
/* Remove ourselves from the searchable index */
if (template_find(tmpl->name) == tmpl)
SPLAY_REMOVE(templtree, &templates, tmpl);
/* Free conditions for dynamic templates */
for (cond = TAILQ_FIRST(&tmpl->dynamic); cond != NULL;
cond = TAILQ_FIRST(&tmpl->dynamic)) {
TAILQ_REMOVE(&tmpl->dynamic, cond, next);
template_free(cond->tmpl);
if (cond->match_arg)
free(cond->match_arg);
free(cond);
}
/* Remove ports from template */
while ((port = SPLAY_ROOT(&tmpl->ports)) != NULL)
port_free(tmpl, port);
if (tmpl->person != NULL)
personality_declone(tmpl->person);
if (tmpl->ethernet_addr != NULL) {
struct arp_req *req = arp_find(tmpl->ethernet_addr);
/*
* Templates that are not bound to IP addresses do not
* have an associated arp request object.
*/
if (req != NULL)
arp_free(req);
free(tmpl->ethernet_addr);
}
if (tmpl->dhcp_req != NULL) {
dhcp_release(tmpl);
dhcp_abort(tmpl);
free(tmpl->dhcp_req);
}
free(tmpl->name);
free(tmpl);
}
struct port *
port_find(struct template *tmpl, int proto, int number)
{
struct port tmpport;
tmpport.proto = proto;
tmpport.number = number;
return (SPLAY_FIND(porttree, &tmpl->ports, &tmpport));
}
void
port_action_clone(struct action *dst, const struct action *src)
{
*dst = *src;
if (src->action) {
dst->action = strdup(src->action);
if (dst->action == NULL)
{
syslog(LOG_ERR, "%s: strdup",__func__);
exit(EXIT_FAILURE);
}
}
if (src->aitop != NULL) {
struct addrinfo *ai = src->aitop;
char addr[NI_MAXHOST];
char port[NI_MAXSERV];
short nport;
if (getnameinfo(ai->ai_addr, ai->ai_addrlen,
addr, sizeof(addr), port, sizeof(port),
NI_NUMERICHOST|NI_NUMERICSERV) != 0)
{
syslog(LOG_ERR, "%s: getnameinfo", __func__);
exit(EXIT_FAILURE);
}
nport = atoi(port);
dst->aitop = cmd_proxy_getinfo(addr, ai->ai_socktype, nport);
if (dst->aitop == NULL)
{
syslog(LOG_ERR, "%s: cmd_proxy_getinfo failed", __func__);
exit(EXIT_FAILURE);
}
}
}
void
port_encapsulation_free(struct port_encapsulate *tmp)
{
struct port *port = tmp->port;
TAILQ_REMOVE(&port->pending, tmp, next);
event_del(tmp->ev);
/* Remove the reference to the pending connection */
if (tmp->hdr != NULL)
tmp->hdr->pending = NULL;
free(tmp);
}
void
port_free(struct template *tmpl, struct port *port)
{
struct port_encapsulate *tmp;
/* Remove pending connections */
while ((tmp = TAILQ_FIRST(&port->pending)) != NULL) {
/* This might not be the correct way to clean this up */
if (tmp->hdr != NULL && tmp->hdr->type == SOCK_STREAM)
tcp_connectfail(tmp->con);
port_encapsulation_free(tmp);
}
SPLAY_REMOVE(porttree, &tmpl->ports, port);
if (port->sub_conport != NULL) {
/* Back pointer to connection object.
* It allows us to remove the reference to this object
* in the connection.
* However, at this point we really need to tear down
* that connection, too.
*/
*port->sub_conport = NULL;
}
if (port->sub != NULL)
TAILQ_REMOVE(&port->sub->ports, port, next);
if (port->sub_fd != -1)
fdshare_close(port->sub_fd);
if (port->action.action != NULL)
free (port->action.action);
if (port->action.aitop != NULL)
freeaddrinfo(port->action.aitop);
free(port);
}
// Callback for honeyd script broadcasts
void bcast_trigger(int fd, short what, void *ptr) {
int i;
struct udp_con *con = (struct udp_con*)ptr;
struct port *bport = con->port;
struct template *tmpl = template_find((const char *)&bport->templateName);
struct in_addr honeypotAddress;
inet_aton(tmpl->name, &honeypotAddress);
struct ip_hdr ip;
struct udp_hdr udp;
ip.ip_src = tmpl->inter->subnetBcastAddress;
ip.ip_dst = honeypotAddress.s_addr;
udp.uh_sport = htons(bport->number);
udp.uh_dport = htons(bport->srcport);
struct udp_con *udpcon = udp_new(&ip, &udp, 0);
udpcon->tmpl = template_ref(tmpl);;
char *argv[32];
/* Create arguments */
char *p, *p2;
char line[512];
strlcpy(line, bport->action.action, sizeof(line));
p2 = line;
for (i = 0; i < sizeof(argv)/sizeof(char *) - 1; i++) {
if ((p = strsep(&p2, " ")) == NULL)
break;
if (strlen(p) == 0) {
i--;
continue;
}
argv[i] = p;
}
argv[i] = NULL;
cmd_fork(&udpcon->conhdr, &udpcon->cmd, tmpl, argv[0], argv, (void*)udpcon);
}
// This lets you have a honeyd script run every n seconds and send out a broadcast UDP packet
void bcast_insert(struct template *tmpl, int srcport, int dstport, int seconds, struct action *action)
{
struct port *p;
p = calloc(1, sizeof(struct port));
p->action = *action;
p->number = dstport;
p->srcport = srcport;
p->timeout = seconds;
SPLAY_INSERT(porttree, &tmpl->bcasts, p);
}
struct port *
port_insert(struct template *tmpl, int proto, int number,
struct action *action)
{
struct port *port, tmpport;
tmpport.proto = proto;
tmpport.number = number;
// Check if this port/protocol already has an action set
if (SPLAY_FIND(porttree, &tmpl->ports, &tmpport) != NULL)
{
syslog(LOG_WARNING, "WARNING: replacing already defined port/protocol for template %s: port: %d | protocol: %d", tmpl->name, number, proto);
}
if ((port = calloc(1, sizeof(struct port))) == NULL)
{
syslog(LOG_ERR, "%s: calloc", __func__);
exit(EXIT_FAILURE);
}
TAILQ_INIT(&port->pending);
port->sub = NULL;
port->sub_fd = -1;
port->proto = proto;
port->number = number;
port_action_clone(&port->action, action);
SPLAY_INSERT(porttree, &tmpl->ports, port);
return (port);
}
/* Create a random port in a certain range */
struct port *
port_random(struct template *tmpl, int proto, struct action *action,
int min, int max)
{
extern rand_t *honeyd_rand;
struct port *port = NULL;
int count = 100;
int number;
while (count-- && port == NULL) {
number = rand_uint16(honeyd_rand) % (max - min) + min;
port = port_insert(tmpl, proto, number, action);
}
return (port);
}
int
template_add(struct template *tmpl, int proto, int number,
struct action *action)
{
return (port_insert(tmpl, proto, number, action) == NULL ? -1 : 0);
}
void
template_insert_subsystem(struct template *tmpl, struct subsystem *sub)
{
struct subsystem_container *container;
if ((container = malloc(sizeof(struct subsystem_container))) == NULL)
{
syslog(LOG_ERR, "%s: malloc", __func__);
exit(EXIT_FAILURE);
}
container->sub = sub;
TAILQ_INSERT_TAIL(&tmpl->subsystems, container, next);
}
/* This function is slow, but should only called on SIGHUP */
void
template_remove_subsystem(struct template *tmpl, struct subsystem *sub)
{
struct subsystem_container *container;
TAILQ_FOREACH(container, &tmpl->subsystems, next) {
if (container->sub == sub)
break;
}
if (container == NULL)
{
syslog(LOG_ERR, "%s: could not remove subsystem %p from %s",__func__, sub, tmpl->name);
exit(EXIT_FAILURE);
}
TAILQ_REMOVE(&tmpl->subsystems, container, next);
free(container);
}
void
template_post_arp(struct template *tmpl, struct addr *ipaddr)
{
struct arp_req *req;
/* Register this mac address as our own */
req = arp_new(tmpl->inter, NULL, NULL, ipaddr, tmpl->ethernet_addr);
if (req == NULL)
{
syslog(LOG_ERR, "%s: cannot create arp entry",__func__);
exit(EXIT_FAILURE);
}
req->flags |= ARP_INTERNAL;
req->owner = tmpl;
}
void
template_remove_arp(struct template *tmpl)
{
struct arp_req *arp;
if (tmpl->ethernet_addr == NULL)
return;
/* Check if we have an ARP entry */
arp = arp_find(tmpl->ethernet_addr);
assert(arp != NULL);
arp_free(arp);
}
/*
* When the interface is specified, we do not need to do an address lookup
* for a corresponding interface. We use the interface for DHCP.
*/
struct template *
template_clone(const char *newname, const struct template *tmpl,
struct interface *inter, int start)
{
struct subsystem_container *container;
struct condition *condition;
struct template *newtmpl;
struct port *port;
struct in_addr in_addr;
if ((newtmpl = template_create(newname)) == NULL)
return (NULL);
SPLAY_FOREACH(port, porttree, (struct porttree *)&tmpl->ports) {
if (port_insert(newtmpl, port->proto, port->number,
&port->action) == NULL)
return (NULL);
}
SPLAY_FOREACH(port, porttree, (struct porttree *)&tmpl->bcasts) {
bcast_insert(newtmpl, port->srcport, port->number, port->timeout,&port->action);
}
if(tmpl == NULL)
return NULL;
if (tmpl->person)
newtmpl->person = personality_clone(tmpl->person);
if (tmpl->ethernet_addr) {
newtmpl->ethernet_addr = ethernetcode_clone(tmpl->ethernet_addr);
/*
* This template wants to have its own ethernet address,
* so we need to register it with our arp code.
*
* DHCP templates get a temporary IP address assigned.
*/
//If the template name is a valid IP address
if(inet_pton(AF_INET, newtmpl->name, &in_addr) == 1)
{
//convert struct in_addr to addr
struct sockaddr_in tmpSockaddr;
struct addr addr;
tmpSockaddr.sin_family = AF_INET;
tmpSockaddr.sin_addr = in_addr;
tmpSockaddr.sin_port = 0; //There is no socket yet. No ports.
addr_ston((struct sockaddr*)&tmpSockaddr, &addr);
if (inter == NULL)
{
inter = interface_find_responsible(&addr);
if (inter == NULL)
{
syslog(LOG_ERR, "Cannot find interface");
exit(EXIT_FAILURE);
}
}
newtmpl->inter = inter;
/* Register this mac address as our own */
template_post_arp(newtmpl, &addr);
newtmpl->honeypot_instance = 1;
} else {
newtmpl->honeypot_instance = 0;
}
}
port_action_clone(&newtmpl->tcp, &tmpl->tcp);
port_action_clone(&newtmpl->udp, &tmpl->udp);
port_action_clone(&newtmpl->icmp, &tmpl->icmp);
newtmpl->timestamp = tmpl->timestamp;
newtmpl->uid = tmpl->uid;
newtmpl->gid = tmpl->gid;
newtmpl->max_nofiles = tmpl->max_nofiles;
newtmpl->drop_inrate = tmpl->drop_inrate;
newtmpl->drop_synrate = tmpl->drop_synrate;
newtmpl->flags = tmpl->flags;
newtmpl->spoof = tmpl->spoof;
newtmpl->addrbits = tmpl->addrbits;
newtmpl->honeypot_instance = tmpl->honeypot_instance;
/* We need to remove this when cloning */
newtmpl->flags &= ~TEMPLATE_DYNAMIC_CHILD;
/* Clone dynamics */
TAILQ_FOREACH(condition, &tmpl->dynamic, next) {
if (template_insert_dynamic(newtmpl,
condition->tmpl, condition) == -1)
warn("%s: couldn't insert dynamic cond %s into %s",
condition->tmpl->name, tmpl->name);
}
/* Clone subsystems */
TAILQ_FOREACH(container, &tmpl->subsystems, next) {
struct subsystem *sub = container->sub;
/*
* Create a new subsystem structure only if the
* subsystem has not been specified as shared in the
* configuration.
*/
if (!(sub->flags & SUBSYSTEM_SHARED)) {
template_subsystem(newtmpl, sub->cmdstring,sub->flags);
continue;
}
/* Otherwise, just create references */
subsystem_insert_template(sub, newtmpl);
template_insert_subsystem(newtmpl, sub);
}
/* Start subsystems if we are the master template for a subsystem */
if (!start)
return (newtmpl);
/* Start background processes */
TAILQ_FOREACH(container, &newtmpl->subsystems, next) {
template_subsystem_start(newtmpl, container->sub);
}
return (newtmpl);
}
int
template_subsystem(struct template *tmpl, char *subsystem, int flags)
{
struct subsystem *sub;
if ((sub = calloc(1, sizeof(struct subsystem))) == NULL)
{
syslog(LOG_ERR, "%s: calloc", __func__);
exit(EXIT_FAILURE);
}
if ((sub->cmdstring = strdup(subsystem)) == NULL)
{
syslog(LOG_ERR, "%s: strdup", __func__);
exit(EXIT_FAILURE);
}
/* Initializes subsystem data structures */
TAILQ_INIT(&sub->ports);
SPLAY_INIT(&sub->root);
TAILQ_INIT(&sub->templates);
subsystem_insert_template(sub, tmpl);
sub->cmd.pid = -1;
sub->flags |= flags;
template_insert_subsystem(tmpl, sub);
/* Remember this subsystem for lookup through the UI */
TAILQ_INSERT_TAIL(&subsystems, sub, next);
return (0);
}
void
template_subsystem_free_ports(struct subsystem *sub)
{
struct port *port;
for (port = TAILQ_FIRST(&sub->ports); port;
port = TAILQ_FIRST(&sub->ports)) {
/* Free all ports for this subsystem */
port_free(port->subtmpl, port);
}
}
struct subsystem *
template_subsystem_find(const char *name)
{
struct subsystem *sub;
TAILQ_FOREACH(sub, &subsystems, next) {
if (!strcmp(name, sub->cmdstring))
return (sub);
}
return (NULL);
}
void
template_subsystem_list_glob(struct evbuffer *buffer, const char *pattern)
{
struct subsystem *sub, *last = NULL;
struct evbuffer *tmp = NULL;
int count = 0;
sub = template_subsystem_find(pattern);
if (sub != NULL) {
subsystem_print(buffer, sub);
return;
}
if ((tmp = evbuffer_new()) == NULL)
{
syslog(LOG_ERR, "%s: malloc",__func__);
exit(EXIT_FAILURE);
}
TAILQ_FOREACH(sub, &subsystems, next) {
/* Ignore it if it does not match */
if (fnmatch(pattern, sub->cmdstring, 0))
continue;
count++;
evbuffer_add_printf(tmp, "%4d. %s (%d)\n",
count, sub->cmdstring, sub->cmd.pid);
last = sub;
}
if (count == 1) {
subsystem_print(buffer, last);
} else {
evbuffer_add_buffer(buffer, tmp);
}
evbuffer_free(tmp);
}
void
template_subsystem_free(struct subsystem *sub)
{
struct template_container *cont;
struct template *tmpl;
TAILQ_REMOVE(&subsystems, sub, next);
template_subsystem_free_ports(sub);
/*
* As we are removing all templates for this subsystem, we
* actually do not need to remove them from the Splay.
*/
for (cont = TAILQ_FIRST(&sub->templates); cont;
cont = TAILQ_FIRST(&sub->templates)) {
TAILQ_REMOVE(&sub->templates, cont, next);
tmpl = cont->tmpl;
free(cont);
template_remove_subsystem(tmpl, sub);
template_free(tmpl);
}
cmd_free(&sub->cmd);
free(sub->cmdstring);
free(sub);
}
/*
* Inserts a new conditional template into a dynamic template.
* The condition gets cloned in the process.
*/
int
template_insert_dynamic(struct template *tmpl, struct template *child,
struct condition *condition)
{
char newname[1024];
struct condition *cond;