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/* $OpenBSD: config.c,v 1.38 2017/05/17 14:00:06 deraadt Exp $ */
/*
* Copyright (c) 2008 Pierre-Yves Ritschard <pyr@openbsd.org>
*
* Permission to use, copy, modify, and distribute this software for any
* purpose with or without fee is hereby granted, provided that the above
* copyright notice and this permission notice appear in all copies.
*
* THE SOFTWARE IS PROVIDED "AS IS" AND THE AUTHOR DISCLAIMS ALL WARRANTIES
* WITH REGARD TO THIS SOFTWARE INCLUDING ALL IMPLIED WARRANTIES OF
* MERCHANTABILITY AND FITNESS. IN NO EVENT SHALL THE AUTHOR BE LIABLE FOR
* ANY SPECIAL, DIRECT, INDIRECT, OR CONSEQUENTIAL DAMAGES OR ANY DAMAGES
* WHATSOEVER RESULTING FROM LOSS OF USE, DATA OR PROFITS, WHETHER IN AN
* ACTION OF CONTRACT, NEGLIGENCE OR OTHER TORTIOUS ACTION, ARISING OUT OF
* OR IN CONNECTION WITH THE USE OR PERFORMANCE OF THIS SOFTWARE.
*/
#include <sys/types.h>
#include <sys/queue.h>
#include <sys/tree.h>
#include <sys/socket.h>
#include <sys/resource.h>
#include <event.h>
#include <imsg.h>
#include <stdio.h>
#include <stdlib.h>
#include <limits.h>
#include <string.h>
#include <unistd.h>
#include <openssl/ssl.h>
#include "smtpd.h"
#include "log.h"
#include "ssl.h"
void
purge_config(uint8_t what)
{
struct listener *l;
struct table *t;
struct rule *r;
struct pki *p;
const char *k;
void *iter_dict;
if (what & PURGE_LISTENERS) {
while ((l = TAILQ_FIRST(env->sc_listeners)) != NULL) {
TAILQ_REMOVE(env->sc_listeners, l, entry);
free(l);
}
free(env->sc_listeners);
env->sc_listeners = NULL;
}
if (what & PURGE_TABLES) {
while (dict_root(env->sc_tables_dict, NULL, (void **)&t))
table_destroy(t);
free(env->sc_tables_dict);
env->sc_tables_dict = NULL;
}
if (what & PURGE_RULES) {
while ((r = TAILQ_FIRST(env->sc_rules)) != NULL) {
TAILQ_REMOVE(env->sc_rules, r, r_entry);
free(r);
}
free(env->sc_rules);
env->sc_rules = NULL;
}
if (what & PURGE_PKI) {
while (dict_poproot(env->sc_pki_dict, (void **)&p)) {
freezero(p->pki_cert, p->pki_cert_len);
freezero(p->pki_key, p->pki_key_len);
EVP_PKEY_free(p->pki_pkey);
free(p);
}
free(env->sc_pki_dict);
env->sc_pki_dict = NULL;
} else if (what & PURGE_PKI_KEYS) {
iter_dict = NULL;
while (dict_iter(env->sc_pki_dict, &iter_dict, &k,
(void **)&p)) {
freezero(p->pki_cert, p->pki_cert_len);
p->pki_cert = NULL;
freezero(p->pki_key, p->pki_key_len);
p->pki_key = NULL;
EVP_PKEY_free(p->pki_pkey);
p->pki_pkey = NULL;
}
}
}
void
config_process(enum smtp_proc_type proc)
{
struct rlimit rl;
smtpd_process = proc;
setproctitle("%s", proc_title(proc));
if (getrlimit(RLIMIT_NOFILE, &rl) == -1)
fatal("fdlimit: getrlimit");
rl.rlim_cur = rl.rlim_max;
if (setrlimit(RLIMIT_NOFILE, &rl) == -1)
fatal("fdlimit: setrlimit");
}
void
config_peer(enum smtp_proc_type proc)
{
struct mproc *p;
if (proc == smtpd_process)
fatal("config_peers: cannot peer with oneself");
if (proc == PROC_CONTROL)
p = p_control;
else if (proc == PROC_LKA)
p = p_lka;
else if (proc == PROC_PARENT)
p = p_parent;
else if (proc == PROC_QUEUE)
p = p_queue;
else if (proc == PROC_SCHEDULER)
p = p_scheduler;
else if (proc == PROC_PONY)
p = p_pony;
else if (proc == PROC_CA)
p = p_ca;
else
fatalx("bad peer");
mproc_enable(p);
}
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