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SSLproxy/opts.c

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/*-
* SSLsplit - transparent SSL/TLS interception
* https://www.roe.ch/SSLsplit
*
* Copyright (c) 2009-2018, Daniel Roethlisberger <daniel@roe.ch>.
* 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.
*
* THIS SOFTWARE IS PROVIDED BY THE COPYRIGHT HOLDER AND CONTRIBUTORS ``AS IS''
* AND ANY EXPRESS 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 COPYRIGHT HOLDER OR 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.
*/
#include "opts.h"
#include "sys.h"
#include "log.h"
#include "defaults.h"
#include <string.h>
#include <sys/types.h>
#include <sys/socket.h>
#include <sys/resource.h>
#ifndef OPENSSL_NO_DH
#include <openssl/dh.h>
#endif /* !OPENSSL_NO_DH */
#include <openssl/x509.h>
/*
* Handle out of memory conditions in early stages of main().
* Print error message and exit with failure status code.
* Does not return.
*/
void NORET
oom_die(const char *argv0)
{
fprintf(stderr, "%s: out of memory\n", argv0);
exit(EXIT_FAILURE);
}
opts_t *
opts_new(void)
{
opts_t *opts;
opts = malloc(sizeof(opts_t));
memset(opts, 0, sizeof(opts_t));
opts->sslcomp = 1;
opts->chain = sk_X509_new_null();
opts->sslmethod = SSLv23_method;
opts->leafkey_rsabits = DFLT_LEAFKEY_RSABITS;
opts->conn_idle_timeout = 120;
opts->expired_conn_check_period = 10;
opts->ssl_shutdown_retry_delay = 100;
opts->stats_period = 1;
opts->remove_http_accept_encoding = 1;
opts->remove_http_referer = 1;
opts->verify_peer = 1;
opts->user_timeout = 300;
opts->max_http_header_size = 8192;
return opts;
}
void
opts_free(opts_t *opts)
{
sk_X509_pop_free(opts->chain, X509_free);
if (opts->clientcrt) {
X509_free(opts->clientcrt);
}
if (opts->clientkey) {
EVP_PKEY_free(opts->clientkey);
}
if (opts->cacrt) {
X509_free(opts->cacrt);
}
if (opts->cakey) {
EVP_PKEY_free(opts->cakey);
}
if (opts->key) {
EVP_PKEY_free(opts->key);
}
#ifndef OPENSSL_NO_DH
if (opts->dh) {
DH_free(opts->dh);
}
#endif /* !OPENSSL_NO_DH */
#ifndef OPENSSL_NO_ECDH
if (opts->ecdhcurve) {
free(opts->ecdhcurve);
}
#endif /* !OPENSSL_NO_ECDH */
if (opts->spec) {
proxyspec_free(opts->spec);
}
if (opts->ciphers) {
free(opts->ciphers);
}
#ifndef OPENSSL_NO_ENGINE
if (opts->openssl_engine) {
free(opts->openssl_engine);
}
#endif /* !OPENSSL_NO_ENGINE */
if (opts->tgcrtdir) {
free(opts->tgcrtdir);
}
if (opts->crlurl) {
free(opts->crlurl);
}
if (opts->dropuser) {
free(opts->dropuser);
}
if (opts->dropgroup) {
free(opts->dropgroup);
}
if (opts->jaildir) {
free(opts->jaildir);
}
if (opts->pidfile) {
free(opts->pidfile);
}
if (opts->connectlog) {
free(opts->connectlog);
}
if (opts->contentlog) {
free(opts->contentlog);
}
if (opts->certgendir) {
free(opts->certgendir);
}
if (opts->contentlog_basedir) {
free(opts->contentlog_basedir);
}
if (opts->masterkeylog) {
free(opts->masterkeylog);
}
if (opts->pcaplog) {
free(opts->pcaplog);
}
if (opts->pcaplog_basedir) {
free(opts->pcaplog_basedir);
}
#ifndef WITHOUT_MIRROR
if (opts->mirrorif) {
free(opts->mirrorif);
}
if (opts->mirrortarget) {
free(opts->mirrortarget);
}
#endif /* !WITHOUT_MIRROR */
if (opts->userdb_path) {
free(opts->userdb_path);
}
if (opts->user_auth_url) {
free(opts->user_auth_url);
}
if (opts->user_auth) {
sqlite3_finalize(opts->update_user_atime);
sqlite3_close(opts->userdb);
}
memset(opts, 0, sizeof(opts_t));
free(opts);
}
/*
* Return 1 if opts_t contains a proxyspec that (eventually) uses SSL/TLS,
* 0 otherwise. When 0, it is safe to assume that no SSL/TLS operations
* will take place with this configuration.
*/
int
opts_has_ssl_spec(opts_t *opts)
{
proxyspec_t *p = opts->spec;
while (p) {
if (p->ssl || p->upgrade)
return 1;
p = p->next;
}
return 0;
}
/*
* Return 1 if opts_t contains a proxyspec with dns, 0 otherwise.
*/
int
opts_has_dns_spec(opts_t *opts)
{
proxyspec_t *p = opts->spec;
while (p) {
if (p->dns)
return 1;
p = p->next;
}
return 0;
}
/*
* Dump the SSL/TLS protocol related configuration to the debug log.
*/
void
opts_proto_dbg_dump(opts_t *opts)
{
log_dbg_printf("SSL/TLS protocol: %s%s%s%s%s%s\n",
#if (OPENSSL_VERSION_NUMBER < 0x10100000L) || defined(LIBRESSL_VERSION_NUMBER)
#ifdef HAVE_SSLV2
(opts->sslmethod == SSLv2_method) ? "ssl2" :
#endif /* HAVE_SSLV2 */
#ifdef HAVE_SSLV3
(opts->sslmethod == SSLv3_method) ? "ssl3" :
#endif /* HAVE_SSLV3 */
#ifdef HAVE_TLSV10
(opts->sslmethod == TLSv1_method) ? "tls10" :
#endif /* HAVE_TLSV10 */
#ifdef HAVE_TLSV11
(opts->sslmethod == TLSv1_1_method) ? "tls11" :
#endif /* HAVE_TLSV11 */
#ifdef HAVE_TLSV12
(opts->sslmethod == TLSv1_2_method) ? "tls12" :
#endif /* HAVE_TLSV12 */
#else /* OPENSSL_VERSION_NUMBER >= 0x10100000L */
#ifdef HAVE_SSLV3
(opts->sslversion == SSL3_VERSION) ? "ssl3" :
#endif /* HAVE_SSLV3 */
#ifdef HAVE_TLSV10
(opts->sslversion == TLS1_VERSION) ? "tls10" :
#endif /* HAVE_TLSV10 */
#ifdef HAVE_TLSV11
(opts->sslversion == TLS1_1_VERSION) ? "tls11" :
#endif /* HAVE_TLSV11 */
#ifdef HAVE_TLSV12
(opts->sslversion == TLS1_2_VERSION) ? "tls12" :
#endif /* HAVE_TLSV12 */
#endif /* OPENSSL_VERSION_NUMBER >= 0x10100000L */
"negotiate",
#ifdef HAVE_SSLV2
opts->no_ssl2 ? " -ssl2" :
#endif /* HAVE_SSLV2 */
"",
#ifdef HAVE_SSLV3
opts->no_ssl3 ? " -ssl3" :
#endif /* HAVE_SSLV3 */
"",
#ifdef HAVE_TLSV10
opts->no_tls10 ? " -tls10" :
#endif /* HAVE_TLSV10 */
"",
#ifdef HAVE_TLSV11
opts->no_tls11 ? " -tls11" :
#endif /* HAVE_TLSV11 */
"",
#ifdef HAVE_TLSV12
opts->no_tls12 ? " -tls12" :
#endif /* HAVE_TLSV12 */
"");
}
/*
* Parse proxyspecs using a simple state machine.
*/
void
proxyspec_parse(int *argc, char **argv[], const char *natengine,
proxyspec_t **opts_spec)
{
proxyspec_t *spec = NULL;
char *addr = NULL;
int af = AF_UNSPEC;
int state = 0;
while ((*argc)--) {
switch (state) {
default:
case 0:
/* tcp | ssl | http | https | autossl | pop3 | pop3s | smtp | smtps */
spec = malloc(sizeof(proxyspec_t));
memset(spec, 0, sizeof(proxyspec_t));
spec->next = *opts_spec;
*opts_spec = spec;
/* Defaults */
spec->ssl = 0;
spec->http = 0;
spec->upgrade = 0;
spec->pop3 = 0;
spec->smtp = 0;
if (!strcmp(**argv, "tcp")) {
/* use defaults */
} else
if (!strcmp(**argv, "ssl")) {
spec->ssl = 1;
} else
if (!strcmp(**argv, "http")) {
spec->http = 1;
} else
if (!strcmp(**argv, "https")) {
spec->ssl = 1;
spec->http = 1;
} else
if (!strcmp(**argv, "autossl")) {
spec->upgrade = 1;
} else
if (!strcmp(**argv, "pop3")) {
spec->pop3 = 1;
} else
if (!strcmp(**argv, "pop3s")) {
spec->ssl = 1;
spec->pop3 = 1;
} else
if (!strcmp(**argv, "smtp")) {
spec->smtp = 1;
} else
if (!strcmp(**argv, "smtps")) {
spec->ssl = 1;
spec->smtp = 1;
} else {
fprintf(stderr, "Unknown connection "
"type '%s'\n", **argv);
exit(EXIT_FAILURE);
}
state++;
break;
case 1:
/* listenaddr */
addr = **argv;
state++;
break;
case 2:
/* listenport */
af = sys_sockaddr_parse(&spec->listen_addr,
&spec->listen_addrlen,
addr, **argv,
sys_get_af(addr),
EVUTIL_AI_PASSIVE);
if (af == -1) {
exit(EXIT_FAILURE);
}
if (natengine) {
spec->natengine = strdup(natengine);
if (!spec->natengine) {
fprintf(stderr,
"Out of memory"
"\n");
exit(EXIT_FAILURE);
}
} else {
spec->natengine = NULL;
}
state++;
break;
case 3:
// UTM port is mandatory
// The UTM port is set/used in pf and UTM service config.
// @todo IPv6?
if (strstr(**argv, "up:")) {
char *up = **argv + 3;
char *ua = "127.0.0.1";
char *ra = "127.0.0.1";
// ua and ra are optional, if both specified, ua should come before ra
// UTM address
if (*argc && strstr(*((*argv) + 1), "ua:")) {
(*argv)++; (*argc)--;
ua = **argv + 3;
}
// UTM return address
if (*argc && strstr(*((*argv) + 1), "ra:")) {
(*argv)++; (*argc)--;
ra = **argv + 3;
}
int utm_af = sys_sockaddr_parse(&spec->conn_dst_addr,
&spec->conn_dst_addrlen,
ua, up, AF_INET, EVUTIL_AI_PASSIVE);
if (utm_af == -1) {
exit(EXIT_FAILURE);
}
utm_af = sys_sockaddr_parse(&spec->child_src_addr,
&spec->child_src_addrlen,
ra, "0", AF_INET, EVUTIL_AI_PASSIVE);
if (utm_af == -1) {
exit(EXIT_FAILURE);
}
state++;
}
break;
case 4:
/* [ natengine | dstaddr ] */
if (!strcmp(**argv, "tcp") ||
!strcmp(**argv, "ssl") ||
!strcmp(**argv, "http") ||
!strcmp(**argv, "https") ||
!strcmp(**argv, "autossl") ||
!strcmp(**argv, "pop3") ||
!strcmp(**argv, "pop3s") ||
!strcmp(**argv, "smtp") ||
!strcmp(**argv, "smtps")) {
/* implicit default natengine */
(*argv)--; (*argc)++; /* rewind */
state = 0;
} else
if (!strcmp(**argv, "sni")) {
free(spec->natengine);
spec->natengine = NULL;
if (!spec->ssl) {
fprintf(stderr,
"SNI hostname lookup "
"only works for ssl "
"and https proxyspecs"
"\n");
exit(EXIT_FAILURE);
}
state = 6;
} else
if (nat_exist(**argv)) {
/* natengine */
free(spec->natengine);
spec->natengine = strdup(**argv);
if (!spec->natengine) {
fprintf(stderr,
"Out of memory"
"\n");
exit(EXIT_FAILURE);
}
state = 0;
} else {
/* explicit target address */
free(spec->natengine);
spec->natengine = NULL;
addr = **argv;
state++;
}
break;
case 5:
/* dstport */
af = sys_sockaddr_parse(&spec->connect_addr,
&spec->connect_addrlen,
addr, **argv, af, 0);
if (af == -1) {
exit(EXIT_FAILURE);
}
state = 0;
break;
case 6:
/* SNI dstport */
spec->sni_port = atoi(**argv);
if (!spec->sni_port) {
fprintf(stderr, "Invalid port '%s'\n",
**argv);
exit(EXIT_FAILURE);
}
spec->dns = 1;
state = 0;
break;
}
(*argv)++;
}
if (state != 0 && state != 4) {
fprintf(stderr, "Incomplete proxyspec!\n");
exit(EXIT_FAILURE);
}
}
/*
* Clear and free a proxy spec.
*/
void
proxyspec_free(proxyspec_t *spec)
{
do {
proxyspec_t *next = spec->next;
if (spec->natengine)
free(spec->natengine);
memset(spec, 0, sizeof(proxyspec_t));
free(spec);
spec = next;
} while (spec);
}
/*
* Return text representation of proxy spec for display to the user.
* Returned string must be freed by caller.
*/
char *
proxyspec_str(proxyspec_t *spec)
{
char *s;
char *lhbuf, *lpbuf;
char *cbuf = NULL;
char *pdstbuf = NULL;
char *csrcbuf = NULL;
if (sys_sockaddr_str((struct sockaddr *)&spec->listen_addr,
spec->listen_addrlen, &lhbuf, &lpbuf) != 0) {
return NULL;
}
if (spec->connect_addrlen) {
char *chbuf, *cpbuf;
if (sys_sockaddr_str((struct sockaddr *)&spec->connect_addr,
spec->connect_addrlen,
&chbuf, &cpbuf) != 0) {
return NULL;
}
if (asprintf(&cbuf, "\nconnect= [%s]:%s", chbuf, cpbuf) < 0) {
return NULL;
}
free(chbuf);
free(cpbuf);
}
if (spec->conn_dst_addrlen) {
char *chbuf, *cpbuf;
if (sys_sockaddr_str((struct sockaddr *)&spec->conn_dst_addr,
spec->conn_dst_addrlen,
&chbuf, &cpbuf) != 0) {
return NULL;
}
if (asprintf(&pdstbuf, "\nparent dst addr= [%s]:%s", chbuf, cpbuf) < 0) {
return NULL;
}
free(chbuf);
free(cpbuf);
}
if (spec->child_src_addrlen) {
char *chbuf, *cpbuf;
if (sys_sockaddr_str((struct sockaddr *)&spec->child_src_addr,
spec->child_src_addrlen,
&chbuf, &cpbuf) != 0) {
return NULL;
}
if (asprintf(&csrcbuf, "\nchild src addr= [%s]:%s", chbuf, cpbuf) < 0) {
return NULL;
}
free(chbuf);
free(cpbuf);
}
if (spec->sni_port) {
if (asprintf(&cbuf, "\nsni %i", spec->sni_port) < 0) {
return NULL;
}
}
if (asprintf(&s, "listen=[%s]:%s %s%s%s%s%s %s%s%s", lhbuf, lpbuf,
(spec->ssl ? "ssl" : "tcp"),
(spec->upgrade ? "|autossl" : ""),
(spec->http ? "|http" : ""),
(spec->pop3 ? "|pop3" : ""),
(spec->smtp ? "|smtp" : ""),
(spec->natengine ? spec->natengine : cbuf),
(pdstbuf),
(csrcbuf)) < 0) {
s = NULL;
}
free(lhbuf);
free(lpbuf);
if (cbuf)
free(cbuf);
if (pdstbuf)
free(pdstbuf);
if (csrcbuf)
free(csrcbuf);
return s;
}
void
opts_set_cacrt(opts_t *opts, const char *argv0, const char *optarg)
{
if (opts->cacrt)
X509_free(opts->cacrt);
opts->cacrt = ssl_x509_load(optarg);
if (!opts->cacrt) {
fprintf(stderr, "%s: error loading CA cert from '%s':\n",
argv0, optarg);
if (errno) {
fprintf(stderr, "%s\n", strerror(errno));
} else {
ERR_print_errors_fp(stderr);
}
exit(EXIT_FAILURE);
}
ssl_x509_refcount_inc(opts->cacrt);
sk_X509_insert(opts->chain, opts->cacrt, 0);
if (!opts->cakey) {
opts->cakey = ssl_key_load(optarg);
}
#ifndef OPENSSL_NO_DH
if (!opts->dh) {
opts->dh = ssl_dh_load(optarg);
}
#endif /* !OPENSSL_NO_DH */
#ifdef DEBUG_OPTS
log_dbg_printf("CACert: %s\n", optarg);
#endif /* DEBUG_OPTS */
}
void
opts_set_cakey(opts_t *opts, const char *argv0, const char *optarg)
{
if (opts->cakey)
EVP_PKEY_free(opts->cakey);
opts->cakey = ssl_key_load(optarg);
if (!opts->cakey) {
fprintf(stderr, "%s: error loading CA key from '%s':\n",
argv0, optarg);
if (errno) {
fprintf(stderr, "%s\n", strerror(errno));
} else {
ERR_print_errors_fp(stderr);
}
exit(EXIT_FAILURE);
}
if (!opts->cacrt) {
opts->cacrt = ssl_x509_load(optarg);
if (opts->cacrt) {
ssl_x509_refcount_inc(opts->cacrt);
sk_X509_insert(opts->chain, opts->cacrt, 0);
}
}
#ifndef OPENSSL_NO_DH
if (!opts->dh) {
opts->dh = ssl_dh_load(optarg);
}
#endif /* !OPENSSL_NO_DH */
#ifdef DEBUG_OPTS
log_dbg_printf("CAKey: %s\n", optarg);
#endif /* DEBUG_OPTS */
}
void
opts_set_chain(opts_t *opts, const char *argv0, const char *optarg)
{
if (ssl_x509chain_load(NULL, &opts->chain, optarg) == -1) {
fprintf(stderr, "%s: error loading chain from '%s':\n",
argv0, optarg);
if (errno) {
fprintf(stderr, "%s\n", strerror(errno));
} else {
ERR_print_errors_fp(stderr);
}
exit(EXIT_FAILURE);
}
#ifdef DEBUG_OPTS
log_dbg_printf("CAChain: %s\n", optarg);
#endif /* DEBUG_OPTS */
}
void
opts_set_key(opts_t *opts, const char *argv0, const char *optarg)
{
if (opts->key)
EVP_PKEY_free(opts->key);
opts->key = ssl_key_load(optarg);
if (!opts->key) {
fprintf(stderr, "%s: error loading leaf key from '%s':\n",
argv0, optarg);
if (errno) {
fprintf(stderr, "%s\n", strerror(errno));
} else {
ERR_print_errors_fp(stderr);
}
exit(EXIT_FAILURE);
}
#ifndef OPENSSL_NO_DH
if (!opts->dh) {
opts->dh = ssl_dh_load(optarg);
}
#endif /* !OPENSSL_NO_DH */
#ifdef DEBUG_OPTS
log_dbg_printf("LeafCerts: %s\n", optarg);
#endif /* DEBUG_OPTS */
}
void
opts_set_crl(opts_t *opts, const char *optarg)
{
if (opts->crlurl)
free(opts->crlurl);
opts->crlurl = strdup(optarg);
#ifdef DEBUG_OPTS
log_dbg_printf("CRL: %s\n", opts->crlurl);
#endif /* DEBUG_OPTS */
}
void
opts_set_tgcrtdir(opts_t *opts, const char *argv0, const char *optarg)
{
if (!sys_isdir(optarg)) {
fprintf(stderr, "%s: '%s' is not a directory\n",
argv0, optarg);
exit(EXIT_FAILURE);
}
if (opts->tgcrtdir)
free(opts->tgcrtdir);
opts->tgcrtdir = strdup(optarg);
if (!opts->tgcrtdir)
oom_die(argv0);
#ifdef DEBUG_OPTS
log_dbg_printf("TargetCertDir: %s\n", opts->tgcrtdir);
#endif /* DEBUG_OPTS */
}
static void
set_certgendir(opts_t *opts, const char *argv0, const char *optarg)
{
if (opts->certgendir)
free(opts->certgendir);
opts->certgendir = strdup(optarg);
if (!opts->certgendir)
oom_die(argv0);
}
void
opts_set_certgendir_writegencerts(opts_t *opts, const char *argv0,
const char *optarg)
{
opts->certgen_writeall = 0;
set_certgendir(opts, argv0, optarg);
#ifdef DEBUG_OPTS
log_dbg_printf("WriteGenCertsDir: certgendir=%s, writeall=%u\n",
opts->certgendir, opts->certgen_writeall);
#endif /* DEBUG_OPTS */
}
void
opts_set_certgendir_writeall(opts_t *opts, const char *argv0,
const char *optarg)
{
opts->certgen_writeall = 1;
set_certgendir(opts, argv0, optarg);
#ifdef DEBUG_OPTS
log_dbg_printf("WriteAllCertsDir: certgendir=%s, writeall=%u\n",
opts->certgendir, opts->certgen_writeall);
#endif /* DEBUG_OPTS */
}
void
opts_set_deny_ocsp(opts_t *opts)
{
opts->deny_ocsp = 1;
}
void
opts_unset_deny_ocsp(opts_t *opts)
{
opts->deny_ocsp = 0;
}
void
opts_set_passthrough(opts_t *opts)
{
opts->passthrough = 1;
}
void
opts_unset_passthrough(opts_t *opts)
{
opts->passthrough = 0;
}
void
opts_set_clientcrt(opts_t *opts, const char *argv0, const char *optarg)
{
if (opts->clientcrt)
X509_free(opts->clientcrt);
opts->clientcrt = ssl_x509_load(optarg);
if (!opts->clientcrt) {
fprintf(stderr, "%s: error loading client cert from '%s':\n",
argv0, optarg);
if (errno) {
fprintf(stderr, "%s\n", strerror(errno));
} else {
ERR_print_errors_fp(stderr);
}
exit(EXIT_FAILURE);
}
#ifdef DEBUG_OPTS
log_dbg_printf("ClientCert: %s\n", optarg);
#endif /* DEBUG_OPTS */
}
void
opts_set_clientkey(opts_t *opts, const char *argv0, const char *optarg)
{
if (opts->clientkey)
EVP_PKEY_free(opts->clientkey);
opts->clientkey = ssl_key_load(optarg);
if (!opts->clientkey) {
fprintf(stderr, "%s: error loading client key from '%s':\n",
argv0, optarg);
if (errno) {
fprintf(stderr, "%s\n", strerror(errno));
} else {
ERR_print_errors_fp(stderr);
}
exit(EXIT_FAILURE);
}
#ifdef DEBUG_OPTS
log_dbg_printf("ClientKey: %s\n", optarg);
#endif /* DEBUG_OPTS */
}
#ifndef OPENSSL_NO_DH
void
opts_set_dh(opts_t *opts, const char *argv0, const char *optarg)
{
if (opts->dh)
DH_free(opts->dh);
opts->dh = ssl_dh_load(optarg);
if (!opts->dh) {
fprintf(stderr, "%s: error loading DH params from '%s':\n",
argv0, optarg);
if (errno) {
fprintf(stderr, "%s\n", strerror(errno));
} else {
ERR_print_errors_fp(stderr);
}
exit(EXIT_FAILURE);
}
#ifdef DEBUG_OPTS
log_dbg_printf("DHGroupParams: %s\n", optarg);
#endif /* DEBUG_OPTS */
}
#endif /* !OPENSSL_NO_DH */
#ifndef OPENSSL_NO_ECDH
void
opts_set_ecdhcurve(opts_t *opts, const char *argv0, const char *optarg)
{
EC_KEY *ec;
if (opts->ecdhcurve)
free(opts->ecdhcurve);
if (!(ec = ssl_ec_by_name(optarg))) {
fprintf(stderr, "%s: unknown curve '%s'\n", argv0, optarg);
exit(EXIT_FAILURE);
}
EC_KEY_free(ec);
opts->ecdhcurve = strdup(optarg);
if (!opts->ecdhcurve)
oom_die(argv0);
#ifdef DEBUG_OPTS
log_dbg_printf("ECDHCurve: %s\n", opts->ecdhcurve);
#endif /* DEBUG_OPTS */
}
#endif /* !OPENSSL_NO_ECDH */
void
opts_set_sslcomp(opts_t *opts)
{
opts->sslcomp = 1;
}
void
opts_unset_sslcomp(opts_t *opts)
{
opts->sslcomp = 0;
}
void
opts_set_ciphers(opts_t *opts, const char *argv0, const char *optarg)
{
if (opts->ciphers)
free(opts->ciphers);
opts->ciphers = strdup(optarg);
if (!opts->ciphers)
oom_die(argv0);
#ifdef DEBUG_OPTS
log_dbg_printf("Ciphers: %s\n", opts->ciphers);
#endif /* DEBUG_OPTS */
}
#ifndef OPENSSL_NO_ENGINE
void
opts_set_openssl_engine(opts_t *opts, const char *argv0, const char *optarg)
{
if (opts->openssl_engine)
free(opts->openssl_engine);
opts->openssl_engine = strdup(optarg);
if (!opts->openssl_engine)
oom_die(argv0);
#ifdef DEBUG_OPTS
log_dbg_printf("OpenSSLEngine: %s\n", opts->openssl_engine);
#endif /* DEBUG_OPTS */
}
#endif /* !OPENSSL_NO_ENGINE */
/*
* Parse SSL proto string in optarg and look up the corresponding SSL method.
* Calls exit() on failure.
*/
void
opts_force_proto(opts_t *opts, const char *argv0, const char *optarg)
{
#if (OPENSSL_VERSION_NUMBER < 0x10100000L) || defined(LIBRESSL_VERSION_NUMBER)
if (opts->sslmethod != SSLv23_method) {
#else /* OPENSSL_VERSION_NUMBER >= 0x10100000L */
if (opts->sslversion) {
#endif /* OPENSSL_VERSION_NUMBER >= 0x10100000L */
fprintf(stderr, "%s: cannot use -r multiple times\n", argv0);
exit(EXIT_FAILURE);
}
#if (OPENSSL_VERSION_NUMBER < 0x10100000L) || defined(LIBRESSL_VERSION_NUMBER)
#ifdef HAVE_SSLV2
if (!strcmp(optarg, "ssl2")) {
opts->sslmethod = SSLv2_method;
} else
#endif /* HAVE_SSLV2 */
#ifdef HAVE_SSLV3
if (!strcmp(optarg, "ssl3")) {
opts->sslmethod = SSLv3_method;
} else
#endif /* HAVE_SSLV3 */
#ifdef HAVE_TLSV10
if (!strcmp(optarg, "tls10") || !strcmp(optarg, "tls1")) {
opts->sslmethod = TLSv1_method;
} else
#endif /* HAVE_TLSV10 */
#ifdef HAVE_TLSV11
if (!strcmp(optarg, "tls11")) {
opts->sslmethod = TLSv1_1_method;
} else
#endif /* HAVE_TLSV11 */
#ifdef HAVE_TLSV12
if (!strcmp(optarg, "tls12")) {
opts->sslmethod = TLSv1_2_method;
} else
#endif /* HAVE_TLSV12 */
#else /* OPENSSL_VERSION_NUMBER >= 0x10100000L */
/*
* Support for SSLv2 and the corresponding SSLv2_method(),
* SSLv2_server_method() and SSLv2_client_method() functions were
* removed in OpenSSL 1.1.0.
*/
#ifdef HAVE_SSLV3
if (!strcmp(optarg, "ssl3")) {
opts->sslversion = SSL3_VERSION;
} else
#endif /* HAVE_SSLV3 */
#ifdef HAVE_TLSV10
if (!strcmp(optarg, "tls10") || !strcmp(optarg, "tls1")) {
opts->sslversion = TLS1_VERSION;
} else
#endif /* HAVE_TLSV10 */
#ifdef HAVE_TLSV11
if (!strcmp(optarg, "tls11")) {
opts->sslversion = TLS1_1_VERSION;
} else
#endif /* HAVE_TLSV11 */
#ifdef HAVE_TLSV12
if (!strcmp(optarg, "tls12")) {
opts->sslversion = TLS1_2_VERSION;
} else
#endif /* HAVE_TLSV12 */
#endif /* OPENSSL_VERSION_NUMBER >= 0x10100000L */
{
fprintf(stderr, "%s: Unsupported SSL/TLS protocol '%s'\n",
argv0, optarg);
exit(EXIT_FAILURE);
}
#ifdef DEBUG_OPTS
log_dbg_printf("ForceSSLProto: %s\n", optarg);
#endif /* DEBUG_OPTS */
}
/*
* Parse SSL proto string in optarg and set the corresponding no_foo bit.
* Calls exit() on failure.
*/
void
opts_disable_proto(opts_t *opts, const char *argv0, const char *optarg)
{
#ifdef HAVE_SSLV2
if (!strcmp(optarg, "ssl2")) {
opts->no_ssl2 = 1;
} else
#endif /* HAVE_SSLV2 */
#ifdef HAVE_SSLV3
if (!strcmp(optarg, "ssl3")) {
opts->no_ssl3 = 1;
} else
#endif /* HAVE_SSLV3 */
#ifdef HAVE_TLSV10
if (!strcmp(optarg, "tls10") || !strcmp(optarg, "tls1")) {
opts->no_tls10 = 1;
} else
#endif /* HAVE_TLSV10 */
#ifdef HAVE_TLSV11
if (!strcmp(optarg, "tls11")) {
opts->no_tls11 = 1;
} else
#endif /* HAVE_TLSV11 */
#ifdef HAVE_TLSV12
if (!strcmp(optarg, "tls12")) {
opts->no_tls12 = 1;
} else
#endif /* HAVE_TLSV12 */
{
fprintf(stderr, "%s: Unsupported SSL/TLS protocol '%s'\n",
argv0, optarg);
exit(EXIT_FAILURE);
}
#ifdef DEBUG_OPTS
log_dbg_printf("DisableSSLProto: %s\n", optarg);
#endif /* DEBUG_OPTS */
}
void
opts_set_user(opts_t *opts, const char *argv0, const char *optarg)
{
if (!sys_isuser(optarg)) {
fprintf(stderr, "%s: '%s' is not an existing user\n",
argv0, optarg);
exit(EXIT_FAILURE);
}
if (opts->dropuser)
free(opts->dropuser);
opts->dropuser = strdup(optarg);
if (!opts->dropuser)
oom_die(argv0);
#ifdef DEBUG_OPTS
log_dbg_printf("User: %s\n", opts->dropuser);
#endif /* DEBUG_OPTS */
}
void
opts_set_group(opts_t *opts, const char *argv0, const char *optarg)
{
if (!sys_isgroup(optarg)) {
fprintf(stderr, "%s: '%s' is not an existing group\n",
argv0, optarg);
exit(EXIT_FAILURE);
}
if (opts->dropgroup)
free(opts->dropgroup);
opts->dropgroup = strdup(optarg);
if (!opts->dropgroup)
oom_die(argv0);
#ifdef DEBUG_OPTS
log_dbg_printf("Group: %s\n", opts->dropgroup);
#endif /* DEBUG_OPTS */
}
void
opts_set_jaildir(opts_t *opts, const char *argv0, const char *optarg)
{
if (!sys_isdir(optarg)) {
fprintf(stderr, "%s: '%s' is not a directory\n", argv0, optarg);
exit(EXIT_FAILURE);
}
if (opts->jaildir)
free(opts->jaildir);
opts->jaildir = realpath(optarg, NULL);
if (!opts->jaildir) {
fprintf(stderr, "%s: Failed to realpath '%s': %s (%i)\n",
argv0, optarg, strerror(errno), errno);
exit(EXIT_FAILURE);
}
#ifdef DEBUG_OPTS
log_dbg_printf("Chroot: %s\n", opts->jaildir);
#endif /* DEBUG_OPTS */
}
void
opts_set_pidfile(opts_t *opts, const char *argv0, const char *optarg)
{
if (opts->pidfile)
free(opts->pidfile);
opts->pidfile = strdup(optarg);
if (!opts->pidfile)
oom_die(argv0);
#ifdef DEBUG_OPTS
log_dbg_printf("PidFile: %s\n", opts->pidfile);
#endif /* DEBUG_OPTS */
}
void
opts_set_connectlog(opts_t *opts, const char *argv0, const char *optarg)
{
if (opts->connectlog)
free(opts->connectlog);
if (!(opts->connectlog = sys_realdir(optarg))) {
if (errno == ENOENT) {
fprintf(stderr, "Directory part of '%s' does not "
"exist\n", optarg);
exit(EXIT_FAILURE);
} else {
fprintf(stderr, "Failed to realpath '%s': %s (%i)\n",
optarg, strerror(errno), errno);
oom_die(argv0);
}
}
#ifdef DEBUG_OPTS
log_dbg_printf("ConnectLog: %s\n", opts->connectlog);
#endif /* DEBUG_OPTS */
}
void
opts_set_contentlog(opts_t *opts, const char *argv0, const char *optarg)
{
if (opts->contentlog)
free(opts->contentlog);
if (!(opts->contentlog = sys_realdir(optarg))) {
if (errno == ENOENT) {
fprintf(stderr, "Directory part of '%s' does not "
"exist\n", optarg);
exit(EXIT_FAILURE);
} else {
fprintf(stderr, "Failed to realpath '%s': %s (%i)\n",
optarg, strerror(errno), errno);
oom_die(argv0);
}
}
opts->contentlog_isdir = 0;
opts->contentlog_isspec = 0;
#ifdef DEBUG_OPTS
log_dbg_printf("ContentLog: %s\n", opts->contentlog);
#endif /* DEBUG_OPTS */
}
void
opts_set_contentlogdir(opts_t *opts, const char *argv0, const char *optarg)
{
if (!sys_isdir(optarg)) {
fprintf(stderr, "%s: '%s' is not a directory\n", argv0, optarg);
exit(EXIT_FAILURE);
}
if (opts->contentlog)
free(opts->contentlog);
opts->contentlog = realpath(optarg, NULL);
if (!opts->contentlog) {
fprintf(stderr, "%s: Failed to realpath '%s': %s (%i)\n",
argv0, optarg, strerror(errno), errno);
exit(EXIT_FAILURE);
}
opts->contentlog_isdir = 1;
opts->contentlog_isspec = 0;
#ifdef DEBUG_OPTS
log_dbg_printf("ContentLogDir: %s\n", opts->contentlog);
#endif /* DEBUG_OPTS */
}
static void
opts_set_logbasedir(const char *argv0, const char *optarg,
char **basedir, char **log)
{
char *lhs, *rhs, *p, *q;
size_t n;
if (*basedir)
free(*basedir);
if (*log)
free(*log);
if (log_content_split_pathspec(optarg, &lhs, &rhs) == -1) {
fprintf(stderr, "%s: Failed to split '%s' in lhs/rhs:"
" %s (%i)\n", argv0, optarg,
strerror(errno), errno);
exit(EXIT_FAILURE);
}
/* eliminate %% from lhs */
for (p = q = lhs; *p; p++, q++) {
if (q < p)
*q = *p;
if (*p == '%' && *(p+1) == '%')
p++;
}
*q = '\0';
/* all %% in lhs resolved to % */
if (sys_mkpath(lhs, 0777) == -1) {
fprintf(stderr, "%s: Failed to create '%s': %s (%i)\n",
argv0, lhs, strerror(errno), errno);
exit(EXIT_FAILURE);
}
*basedir = realpath(lhs, NULL);
if (!*basedir) {
fprintf(stderr, "%s: Failed to realpath '%s': %s (%i)\n",
argv0, lhs, strerror(errno), errno);
exit(EXIT_FAILURE);
}
/* count '%' in basedir */
for (n = 0, p = *basedir;
*p;
p++) {
if (*p == '%')
n++;
}
free(lhs);
n += strlen(*basedir);
if (!(lhs = malloc(n + 1)))
oom_die(argv0);
/* re-encoding % to %%, copying basedir to lhs */
for (p = *basedir, q = lhs;
*p;
p++, q++) {
*q = *p;
if (*q == '%')
*(++q) = '%';
}
*q = '\0';
/* lhs contains encoded realpathed basedir */
if (asprintf(log, "%s/%s", lhs, rhs) < 0)
oom_die(argv0);
free(lhs);
free(rhs);
}
void
opts_set_contentlogpathspec(opts_t *opts, const char *argv0, const char *optarg)
{
opts_set_logbasedir(argv0, optarg, &opts->contentlog_basedir,
&opts->contentlog);
opts->contentlog_isdir = 0;
opts->contentlog_isspec = 1;
#ifdef DEBUG_OPTS
log_dbg_printf("ContentLogPathSpec: basedir=%s, %s\n",
opts->contentlog_basedir, opts->contentlog);
#endif /* DEBUG_OPTS */
}
#ifdef HAVE_LOCAL_PROCINFO
void
opts_set_lprocinfo(opts_t *opts)
{
opts->lprocinfo = 1;
}
void
opts_unset_lprocinfo(opts_t *opts)
{
opts->lprocinfo = 0;
}
#endif /* HAVE_LOCAL_PROCINFO */
void
opts_set_masterkeylog(opts_t *opts, const char *argv0, const char *optarg)
{
if (opts->masterkeylog)
free(opts->masterkeylog);
if (!(opts->masterkeylog = sys_realdir(optarg))) {
if (errno == ENOENT) {
fprintf(stderr, "Directory part of '%s' does not "
"exist\n", optarg);
exit(EXIT_FAILURE);
} else {
fprintf(stderr, "Failed to realpath '%s': %s (%i)\n",
optarg, strerror(errno), errno);
oom_die(argv0);
}
}
#ifdef DEBUG_OPTS
log_dbg_printf("MasterKeyLog: %s\n", opts->masterkeylog);
#endif /* DEBUG_OPTS */
}
void
opts_set_pcaplog(opts_t *opts, const char *argv0, const char *optarg)
{
if (opts->pcaplog)
free(opts->pcaplog);
if (!(opts->pcaplog = sys_realdir(optarg))) {
if (errno == ENOENT) {
fprintf(stderr, "Directory part of '%s' does not "
"exist\n", optarg);
exit(EXIT_FAILURE);
} else {
fprintf(stderr, "Failed to realpath '%s': %s (%i)\n",
optarg, strerror(errno), errno);
oom_die(argv0);
}
}
opts->pcaplog_isdir = 0;
opts->pcaplog_isspec = 0;
#ifdef DEBUG_OPTS
log_dbg_printf("PcapLog: %s\n", opts->pcaplog);
#endif /* DEBUG_OPTS */
}
void
opts_set_pcaplogdir(opts_t *opts, const char *argv0, const char *optarg)
{
if (!sys_isdir(optarg)) {
fprintf(stderr, "%s: '%s' is not a directory\n", argv0, optarg);
exit(EXIT_FAILURE);
}
if (opts->pcaplog)
free(opts->pcaplog);
opts->pcaplog = realpath(optarg, NULL);
if (!opts->pcaplog) {
fprintf(stderr, "%s: Failed to realpath '%s': %s (%i)\n",
argv0, optarg, strerror(errno), errno);
exit(EXIT_FAILURE);
}
opts->pcaplog_isdir = 1;
opts->pcaplog_isspec = 0;
#ifdef DEBUG_OPTS
log_dbg_printf("PcapLogDir: %s\n", opts->pcaplog);
#endif /* DEBUG_OPTS */
}
void
opts_set_pcaplogpathspec(opts_t *opts, const char *argv0, const char *optarg)
{
opts_set_logbasedir(argv0, optarg, &opts->pcaplog_basedir,
&opts->pcaplog);
opts->pcaplog_isdir = 0;
opts->pcaplog_isspec = 1;
#ifdef DEBUG_OPTS
log_dbg_printf("PcapLogPathSpec: basedir=%s, %s\n",
opts->pcaplog_basedir, opts->pcaplog);
#endif /* DEBUG_OPTS */
}
#ifndef WITHOUT_MIRROR
void
opts_set_mirrorif(opts_t *opts, const char *argv0, const char *optarg)
{
if (opts->mirrorif)
free(opts->mirrorif);
opts->mirrorif = strdup(optarg);
if (!opts->mirrorif)
oom_die(argv0);
#ifdef DEBUG_OPTS
log_dbg_printf("MirrorIf: %s\n", opts->mirrorif);
#endif /* DEBUG_OPTS */
}
void
opts_set_mirrortarget(opts_t *opts, const char *argv0, const char *optarg)
{
if (opts->mirrortarget)
free(opts->mirrortarget);
opts->mirrortarget = strdup(optarg);
if (!opts->mirrortarget)
oom_die(argv0);
#ifdef DEBUG_OPTS
log_dbg_printf("MirrorTarget: %s\n", opts->mirrortarget);
#endif /* DEBUG_OPTS */
}
#endif /* !WITHOUT_MIRROR */
void
opts_set_daemon(opts_t *opts)
{
opts->detach = 1;
}
void
opts_unset_daemon(opts_t *opts)
{
opts->detach = 0;
}
void
opts_set_debug(opts_t *opts)
{
log_dbg_mode(LOG_DBG_MODE_ERRLOG);
opts->debug = 1;
}
void
opts_unset_debug(opts_t *opts)
{
log_dbg_mode(LOG_DBG_MODE_NONE);
opts->debug = 0;
}
void
opts_set_debug_level(const char *optarg)
{
// Compare strlen(s2)+1 chars to match exactly
if (strncmp(optarg, "2", 2) == 0) {
log_dbg_mode(LOG_DBG_MODE_FINE);
} else if (strncmp(optarg, "3", 2) == 0) {
log_dbg_mode(LOG_DBG_MODE_FINER);
} else if (strncmp(optarg, "4", 2) == 0) {
log_dbg_mode(LOG_DBG_MODE_FINEST);
} else {
fprintf(stderr, "Invalid DebugLevel '%s', use 2-4\n", optarg);
exit(EXIT_FAILURE);
}
#ifdef DEBUG_OPTS
log_dbg_printf("DebugLevel: %s\n", optarg);
#endif /* DEBUG_OPTS */
}
void
opts_set_statslog(opts_t *opts)
{
opts->statslog = 1;
}
void
opts_unset_statslog(opts_t *opts)
{
opts->statslog = 0;
}
static void
opts_set_remove_http_accept_encoding(opts_t *opts)
{
opts->remove_http_accept_encoding = 1;
}
static void
opts_unset_remove_http_accept_encoding(opts_t *opts)
{
opts->remove_http_accept_encoding = 0;
}
static void
opts_set_remove_http_referer(opts_t *opts)
{
opts->remove_http_referer = 1;
}
static void
opts_unset_remove_http_referer(opts_t *opts)
{
opts->remove_http_referer = 0;
}
static void
opts_set_verify_peer(opts_t *opts)
{
opts->verify_peer = 1;
}
static void
opts_unset_verify_peer(opts_t *opts)
{
opts->verify_peer = 0;
}
static void
opts_set_allow_wrong_host(opts_t *opts)
{
opts->allow_wrong_host = 1;
}
static void
opts_unset_allow_wrong_host(opts_t *opts)
{
opts->allow_wrong_host = 0;
}
static void
opts_set_user_auth(UNUSED opts_t *opts)
{
#if defined(__OpenBSD__) || defined(__linux__)
// Enable user auth on OpenBSD and Linux only
opts->user_auth = 1;
#endif /* __OpenBSD__ || __linux__ */
}
static void
opts_unset_user_auth(opts_t *opts)
{
opts->user_auth = 0;
}
static void
opts_set_userdb_path(opts_t *opts, const char *optarg)
{
if (opts->userdb_path)
free(opts->userdb_path);
opts->userdb_path = strdup(optarg);
#ifdef DEBUG_OPTS
log_dbg_printf("UserDBPath: %s\n", opts->userdb_path);
#endif /* DEBUG_OPTS */
}
static void
opts_set_user_auth_url(opts_t *opts, const char *optarg)
{
if (opts->user_auth_url)
free(opts->user_auth_url);
opts->user_auth_url = strdup(optarg);
#ifdef DEBUG_OPTS
log_dbg_printf("UserAuthURL: %s\n", opts->user_auth_url);
#endif /* DEBUG_OPTS */
}
static void
opts_set_validate_proto(opts_t *opts)
{
opts->validate_proto = 1;
}
static void
opts_unset_validate_proto(opts_t *opts)
{
opts->validate_proto = 0;
}
static void
opts_set_open_files_limit(const char *value, int line_num)
{
unsigned int i = atoi(value);
if (i >= 50 && i <= 10000) {
struct rlimit rl;
rl.rlim_cur = i;
rl.rlim_max = i;
if (setrlimit(RLIMIT_NOFILE, &rl) == -1) {
fprintf(stderr, "Failed setting OpenFilesLimit\n");
if (errno) {
fprintf(stderr, "%s\n", strerror(errno));
} else {
ERR_print_errors_fp(stderr);
}
exit(EXIT_FAILURE);
}
} else {
fprintf(stderr, "Invalid OpenFilesLimit %s at line %d, use 50-10000\n", value, line_num);
exit(EXIT_FAILURE);
}
#ifdef DEBUG_OPTS
log_dbg_printf("OpenFilesLimit: %u\n", i);
#endif /* DEBUG_OPTS */
}
static int
check_value_yesno(const char *value, const char *name, int line_num)
{
/* Compare strlen(s2)+1 chars to match exactly */
if (!strncmp(value, "yes", 4)) {
return 1;
} else if (!strncmp(value, "no", 3)) {
return 0;
}
fprintf(stderr, "Error in conf: Invalid '%s' value '%s' at line %d, use yes|no\n", name, value, line_num);
return -1;
}
#define MAX_TOKEN 10
static int
set_option(opts_t *opts, const char *argv0,
const char *name, char *value, char **natengine, int line_num)
{
int yes;
int retval = -1;
/* Compare strlen(s2)+1 chars to match exactly */
if (!strncmp(name, "CACert", 7)) {
opts_set_cacrt(opts, argv0, value);
} else if (!strncmp(name, "CAKey", 6)) {
opts_set_cakey(opts, argv0, value);
} else if (!strncmp(name, "ClientCert", 11)) {
opts_set_clientcrt(opts, argv0, value);
} else if (!strncmp(name, "ClientKey", 10)) {
opts_set_clientkey(opts, argv0, value);
} else if (!strncmp(name, "CAChain", 8)) {
opts_set_chain(opts, argv0, value);
} else if (!strncmp(name, "LeafCerts", 10)) {
opts_set_key(opts, argv0, value);
} else if (!strncmp(name, "CRL", 4)) {
opts_set_crl(opts, value);
} else if (!strncmp(name, "TargetCertDir", 14)) {
opts_set_tgcrtdir(opts, argv0, value);
} else if (!strncmp(name, "WriteGenCertsDir", 17)) {
opts_set_certgendir_writegencerts(opts, argv0, value);
} else if (!strncmp(name, "WriteAllCertsDir", 17)) {
opts_set_certgendir_writeall(opts, argv0, value);
} else if (!strncmp(name, "DenyOCSP", 9)) {
yes = check_value_yesno(value, "DenyOCSP", line_num);
if (yes == -1) {
goto leave;
}
yes ? opts_set_deny_ocsp(opts) : opts_unset_deny_ocsp(opts);
#ifdef DEBUG_OPTS
log_dbg_printf("DenyOCSP: %u\n", opts->deny_ocsp);
#endif /* DEBUG_OPTS */
} else if (!strncmp(name, "Passthrough", 12)) {
yes = check_value_yesno(value, "Passthrough", line_num);
if (yes == -1) {
goto leave;
}
yes ? opts_set_passthrough(opts) : opts_unset_passthrough(opts);
#ifdef DEBUG_OPTS
log_dbg_printf("Passthrough: %u\n", opts->passthrough);
#endif /* DEBUG_OPTS */
#ifndef OPENSSL_NO_DH
} else if (!strncmp(name, "DHGroupParams", 14)) {
opts_set_dh(opts, argv0, value);
#endif /* !OPENSSL_NO_DH */
#ifndef OPENSSL_NO_ECDH
} else if (!strncmp(name, "ECDHCurve", 10)) {
opts_set_ecdhcurve(opts, argv0, value);
#endif /* !OPENSSL_NO_ECDH */
#ifdef SSL_OP_NO_COMPRESSION
} else if (!strncmp(name, "SSLCompression", 15)) {
yes = check_value_yesno(value, "SSLCompression", line_num);
if (yes == -1) {
goto leave;
}
yes ? opts_set_sslcomp(opts) : opts_unset_sslcomp(opts);
#ifdef DEBUG_OPTS
log_dbg_printf("SSLCompression: %u\n", opts->sslcomp);
#endif /* DEBUG_OPTS */
#endif /* SSL_OP_NO_COMPRESSION */
} else if (!strncasecmp(name, "LeafKeyRSABits", 15)) {
unsigned int i = atoi(value);
if (i == 1024 || i == 2048 || i == 3072 || i == 4096) {
opts->leafkey_rsabits = i;
} else {
fprintf(stderr, "Invalid LeafKeyRSABits %s at line %d, use 1024|2048|3072|4096\n", value, line_num);
goto leave;
}
#ifdef DEBUG_OPTS
log_dbg_printf("LeafKeyRSABits: %u\n", opts->leafkey_rsabits);
#endif /* DEBUG_OPTS */
} else if (!strncmp(name, "ForceSSLProto", 14)) {
opts_force_proto(opts, argv0, value);
} else if (!strncmp(name, "DisableSSLProto", 16)) {
opts_disable_proto(opts, argv0, value);
} else if (!strncmp(name, "Ciphers", 8)) {
opts_set_ciphers(opts, argv0, value);
#ifndef OPENSSL_NO_ENGINE
} else if (!strncmp(name, "OpenSSLEngine", 14)) {
opts_set_openssl_engine(opts, argv0, value);
#endif /* !OPENSSL_NO_ENGINE */
} else if (!strncmp(name, "NATEngine", 10)) {
if (*natengine)
free(*natengine);
*natengine = strdup(value);
if (!*natengine)
goto leave;
#ifdef DEBUG_OPTS
log_dbg_printf("NATEngine: %s\n", *natengine);
#endif /* DEBUG_OPTS */
} else if (!strncmp(name, "User", 5)) {
opts_set_user(opts, argv0, value);
} else if (!strncmp(name, "Group", 6)) {
opts_set_group(opts, argv0, value);
} else if (!strncmp(name, "Chroot", 7)) {
opts_set_jaildir(opts, argv0, value);
} else if (!strncmp(name, "PidFile", 8)) {
opts_set_pidfile(opts, argv0, value);
} else if (!strncmp(name, "ConnectLog", 11)) {
opts_set_connectlog(opts, argv0, value);
} else if (!strncmp(name, "ContentLog", 11)) {
opts_set_contentlog(opts, argv0, value);
} else if (!strncmp(name, "ContentLogDir", 14)) {
opts_set_contentlogdir(opts, argv0, value);
} else if (!strncmp(name, "ContentLogPathSpec", 19)) {
opts_set_contentlogpathspec(opts, argv0, value);
#ifdef HAVE_LOCAL_PROCINFO
} else if (!strncmp(name, "LogProcInfo", 11)) {
yes = check_value_yesno(value, "LogProcInfo", line_num);
if (yes == -1) {
goto leave;
}
yes ? opts_set_lprocinfo(opts) : opts_unset_lprocinfo(opts);
#ifdef DEBUG_OPTS
log_dbg_printf("LogProcInfo: %u\n", opts->lprocinfo);
#endif /* DEBUG_OPTS */
#endif /* HAVE_LOCAL_PROCINFO */
} else if (!strncmp(name, "MasterKeyLog", 13)) {
opts_set_masterkeylog(opts, argv0, value);
} else if (!strncmp(name, "PcapLog", 8)) {
opts_set_pcaplog(opts, argv0, value);
} else if (!strncmp(name, "PcapLogDir", 11)) {
opts_set_pcaplogdir(opts, argv0, value);
} else if (!strncmp(name, "PcapLogPathSpec", 16)) {
opts_set_pcaplogpathspec(opts, argv0, value);
#ifndef WITHOUT_MIRROR
} else if (!strncmp(name, "MirrorIf", 9)) {
opts_set_mirrorif(opts, argv0, value);
} else if (!strncmp(name, "MirrorTarget", 13)) {
opts_set_mirrortarget(opts, argv0, value);
#endif /* !WITHOUT_MIRROR */
} else if (!strncmp(name, "Daemon", 7)) {
yes = check_value_yesno(value, "Daemon", line_num);
if (yes == -1) {
goto leave;
}
yes ? opts_set_daemon(opts) : opts_unset_daemon(opts);
#ifdef DEBUG_OPTS
log_dbg_printf("Daemon: %u\n", opts->detach);
#endif /* DEBUG_OPTS */
} else if (!strncmp(name, "Debug", 6)) {
yes = check_value_yesno(value, "Debug", line_num);
if (yes == -1) {
goto leave;
}
yes ? opts_set_debug(opts) : opts_unset_debug(opts);
#ifdef DEBUG_OPTS
log_dbg_printf("Debug: %u\n", opts->debug);
#endif /* DEBUG_OPTS */
} else if (!strncmp(name, "DebugLevel", 11)) {
opts_set_debug_level(value);
} else if (!strncmp(name, "UserAuth", 9)) {
yes = check_value_yesno(value, "UserAuth", line_num);
if (yes == -1) {
goto leave;
}
yes ? opts_set_user_auth(opts) : opts_unset_user_auth(opts);
#ifdef DEBUG_OPTS
log_dbg_printf("UserAuth: %u\n", opts->user_auth);
#endif /* DEBUG_OPTS */
} else if (!strncmp(name, "UserDBPath", 11)) {
opts_set_userdb_path(opts, value);
} else if (!strncmp(name, "UserAuthURL", 12)) {
opts_set_user_auth_url(opts, value);
} else if (!strncasecmp(name, "UserTimeout", 12)) {
unsigned int i = atoi(value);
if (i <= 86400) {
opts->user_timeout = i;
} else {
fprintf(stderr, "Invalid UserTimeout %s at line %d, use 0-86400\n", value, line_num);
goto leave;
}
#ifdef DEBUG_OPTS
log_dbg_printf("UserTimeout: %u\n", opts->user_timeout);
#endif /* DEBUG_OPTS */
} else if (!strncmp(name, "ValidateProto", 14)) {
yes = check_value_yesno(value, "ValidateProto", line_num);
if (yes == -1) {
goto leave;
}
yes ? opts_set_validate_proto(opts) : opts_unset_validate_proto(opts);
#ifdef DEBUG_OPTS
log_dbg_printf("ValidateProto: %u\n", opts->validate_proto);
#endif /* DEBUG_OPTS */
} else if (!strncasecmp(name, "MaxHTTPHeaderSize", 18)) {
unsigned int i = atoi(value);
if (i >= 1024 && i <= 65536) {
opts->max_http_header_size = i;
} else {
fprintf(stderr, "Invalid MaxHTTPHeaderSize %s at line %d, use 1024-65536\n", value, line_num);
goto leave;
}
#ifdef DEBUG_OPTS
log_dbg_printf("MaxHTTPHeaderSize: %u\n", opts->max_http_header_size);
#endif /* DEBUG_OPTS */
} else if (!strncmp(name, "ProxySpec", 10)) {
/* Use MAX_TOKEN instead of computing the actual number of tokens in value */
char **argv = malloc(sizeof(char *) * MAX_TOKEN);
char **save_argv = argv;
int argc = 0;
char *p, *last = NULL;
for ((p = strtok_r(value, " ", &last));
p;
(p = strtok_r(NULL, " ", &last))) {
/* Limit max # token */
if (argc < MAX_TOKEN) {
argv[argc++] = p;
} else {
break;
}
}
proxyspec_parse(&argc, &argv, *natengine, &opts->spec);
free(save_argv);
} else if (!strncasecmp(name, "VerifyPeer", 11)) {
yes = check_value_yesno(value, "VerifyPeer", line_num);
if (yes == -1) {
goto leave;
}
yes ? opts_set_verify_peer(opts) : opts_unset_verify_peer(opts);
#ifdef DEBUG_OPTS
log_dbg_printf("VerifyPeer: %u\n", opts->verify_peer);
#endif /* DEBUG_OPTS */
} else if (!strncasecmp(name, "AllowWrongHost", 15)) {
yes = check_value_yesno(value, "AllowWrongHost", line_num);
if (yes == -1) {
goto leave;
}
yes ? opts_set_allow_wrong_host(opts)
: opts_unset_allow_wrong_host(opts);
#ifdef DEBUG_OPTS
log_dbg_printf("AllowWrongHost: %u\n", opts->allow_wrong_host);
#endif /* DEBUG_OPTS */
} else if (!strncasecmp(name, "ConnIdleTimeout", 16)) {
unsigned int i = atoi(value);
if (i >= 10 && i <= 3600) {
opts->conn_idle_timeout = i;
} else {
fprintf(stderr, "Invalid ConnIdleTimeout %s at line %d, use 10-3600\n", value, line_num);
goto leave;
}
#ifdef DEBUG_OPTS
log_dbg_printf("ConnIdleTimeout: %u\n", opts->conn_idle_timeout);
#endif /* DEBUG_OPTS */
} else if (!strncasecmp(name, "ExpiredConnCheckPeriod", 23)) {
unsigned int i = atoi(value);
if (i >= 10 && i <= 60) {
opts->expired_conn_check_period = i;
} else {
fprintf(stderr, "Invalid ExpiredConnCheckPeriod %s at line %d, use 10-60\n", value, line_num);
goto leave;
}
#ifdef DEBUG_OPTS
log_dbg_printf("ExpiredConnCheckPeriod: %u\n", opts->expired_conn_check_period);
#endif /* DEBUG_OPTS */
} else if (!strncasecmp(name, "SSLShutdownRetryDelay", 22)) {
unsigned int i = atoi(value);
if (i >= 100 && i <= 10000) {
opts->ssl_shutdown_retry_delay = i;
} else {
fprintf(stderr, "Invalid SSLShutdownRetryDelay %s at line %d, use 100-10000\n", value, line_num);
goto leave;
}
#ifdef DEBUG_OPTS
log_dbg_printf("SSLShutdownRetryDelay: %u\n", opts->ssl_shutdown_retry_delay);
#endif /* DEBUG_OPTS */
} else if (!strncasecmp(name, "LogStats", 9)) {
yes = check_value_yesno(value, "LogStats", line_num);
if (yes == -1) {
goto leave;
}
yes ? opts_set_statslog(opts) : opts_unset_statslog(opts);
#ifdef DEBUG_OPTS
log_dbg_printf("LogStats: %u\n", opts->statslog);
#endif /* DEBUG_OPTS */
} else if (!strncasecmp(name, "StatsPeriod", 12)) {
unsigned int i = atoi(value);
if (i >= 1 && i <= 10) {
opts->stats_period = i;
} else {
fprintf(stderr, "Invalid StatsPeriod %s at line %d, use 1-10\n", value, line_num);
goto leave;
}
#ifdef DEBUG_OPTS
log_dbg_printf("StatsPeriod: %u\n", opts->stats_period);
#endif /* DEBUG_OPTS */
} else if (!strncasecmp(name, "RemoveHTTPAcceptEncoding", 25)) {
yes = check_value_yesno(value, "RemoveHTTPAcceptEncoding", line_num);
if (yes == -1) {
goto leave;
}
yes ? opts_set_remove_http_accept_encoding(opts) : opts_unset_remove_http_accept_encoding(opts);
#ifdef DEBUG_OPTS
log_dbg_printf("RemoveHTTPAcceptEncoding: %u\n", opts->remove_http_accept_encoding);
#endif /* DEBUG_OPTS */
} else if (!strncasecmp(name, "RemoveHTTPReferer", 18)) {
yes = check_value_yesno(value, "RemoveHTTPReferer", line_num);
if (yes == -1) {
goto leave;
}
yes ? opts_set_remove_http_referer(opts) : opts_unset_remove_http_referer(opts);
#ifdef DEBUG_OPTS
log_dbg_printf("RemoveHTTPReferer: %u\n", opts->remove_http_referer);
#endif /* DEBUG_OPTS */
} else if (!strncasecmp(name, "OpenFilesLimit", 15)) {
opts_set_open_files_limit(value, line_num);
} else {
fprintf(stderr, "Error in conf: Unknown option "
"'%s' at line %d\n", name, line_num);
goto leave;
}
retval = 0;
leave:
return retval;
}
/*
* Separator param is needed for command line options only.
* Conf file option separator is ' '.
*/
static int
get_name_value(char **name, char **value, const char sep)
{
char *n, *v, *value_end;
int retval = -1;
/* Skip to the end of option name and terminate it with '\0' */
for (n = *name;; n++) {
/* White spaces possible around separator,
* if the command line option is passed between the quotes */
if (*n == ' ' || *n == '\t' || *n == sep) {
*n = '\0';
n++;
break;
}
if (*n == '\0') {
n = NULL;
break;
}
}
/* No option name */
if (n == NULL) {
fprintf(stderr, "Error in option: No option name\n");
goto leave;
}
/* White spaces possible before value and around separator,
* if the command line option is passed between the quotes */
while (*n == ' ' || *n == '\t' || *n == sep) {
n++;
}
*value = n;
/* Find end of value and terminate it with '\0'
* Find first occurrence of trailing white space */
value_end = NULL;
for (v = *value;; v++) {
if (*v == '\0') {
break;
}
if (*v == '\r' || *v == '\n') {
*v = '\0';
break;
}
if (*v == ' ' || *v == '\t') {
if (!value_end) {
value_end = v;
}
} else {
value_end = NULL;
}
}
if (value_end) {
*value_end = '\0';
}
retval = 0;
leave:
return retval;
}
int
opts_set_option(opts_t *opts, const char *argv0, const char *optarg,
char **natengine)
{
char *name, *value;
int retval = -1;
char *line = strdup(optarg);
/* White spaces possible before option name,
* if the command line option is passed between the quotes */
for (name = line; *name == ' ' || *name == '\t'; name++);
/* Command line option separator is '=' */
retval = get_name_value(&name, &value, '=');
if (retval == 0) {
/* Line number param is for conf file, pass 0 for command line options */
retval = set_option(opts, argv0, name, value, natengine, 0);
}
if (line) {
free(line);
}
return retval;
}
int
opts_load_conffile(opts_t *opts, const char *argv0, char **natengine)
{
int retval, line_num;
char *line, *name, *value;
size_t line_len;
FILE *f;
f = fopen(opts->conffile, "r");
if (!f) {
fprintf(stderr, "Error opening conf file '%s': %s\n", opts->conffile, strerror(errno));
return -1;
}
line = NULL;
line_num = 0;
retval = -1;
while (!feof(f)) {
if (getline(&line, &line_len, f) == -1) {
break;
}
if (line == NULL) {
fprintf(stderr, "Error in conf file: getline() returns NULL line after line %d\n", line_num);
goto leave;
}
line_num++;
/* Skip white space */
for (name = line; *name == ' ' || *name == '\t'; name++);
/* Skip comments and empty lines */
if ((name[0] == '\0') || (name[0] == '#') || (name[0] == ';') ||
(name[0] == '\r') || (name[0] == '\n')) {
continue;
}
retval = get_name_value(&name, &value, ' ');
if (retval == 0) {
retval = set_option(opts, argv0, name, value, natengine, line_num);
}
if (retval == -1) {
goto leave;
}
}
leave:
fclose(f);
if (line) {
free(line);
}
return retval;
}
/* vim: set noet ft=c: */
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