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haproxy/src/cfgparse-ssl.c

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/*
*
* Copyright (C) 2012 EXCELIANCE, Emeric Brun <ebrun@exceliance.fr>
* Copyright (C) 2020 HAProxy Technologies, William Lallemand <wlallemand@haproxy.com>
*
* 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.
*
*
* Configuration parsing for SSL.
* This file is split in 3 parts:
* - global section parsing
* - bind keyword parsing
* - server keyword parsing
*
* Please insert the new keywords at the right place
*/
#define _GNU_SOURCE
#include <ctype.h>
#include <dirent.h>
#include <errno.h>
#include <stdio.h>
#include <stdlib.h>
#include <string.h>
#include <unistd.h>
#include <sys/stat.h>
#include <sys/types.h>
#include <haproxy/api.h>
#include <haproxy/base64.h>
#include <haproxy/cfgparse.h>
#include <haproxy/errors.h>
#include <haproxy/listener.h>
#include <haproxy/openssl-compat.h>
#include <haproxy/ssl_sock.h>
#include <haproxy/ssl_utils.h>
#include <haproxy/tools.h>
#include <haproxy/ssl_ckch.h>
#include <haproxy/ssl_ocsp.h>
/****************** Global Section Parsing ********************************************/
static int ssl_load_global_issuers_from_path(char **args, int section_type, struct proxy *curpx,
const struct proxy *defpx, const char *file, int line,
char **err)
{
char *path;
struct dirent **de_list;
int i, n;
struct stat buf;
char *end;
char fp[MAXPATHLEN+1];
if (too_many_args(1, args, err, NULL))
return -1;
path = args[1];
if (*path == 0 || stat(path, &buf)) {
memprintf(err, "%sglobal statement '%s' expects a directory path as an argument.\n",
err && *err ? *err : "", args[0]);
return -1;
}
if (S_ISDIR(buf.st_mode) == 0) {
memprintf(err, "%sglobal statement '%s': %s is not a directory.\n",
err && *err ? *err : "", args[0], path);
return -1;
}
/* strip trailing slashes, including first one */
for (end = path + strlen(path) - 1; end >= path && *end == '/'; end--)
*end = 0;
/* path already parsed? */
if (global_ssl.issuers_chain_path && strcmp(global_ssl.issuers_chain_path, path) == 0)
return 0;
/* overwrite old issuers_chain_path */
free(global_ssl.issuers_chain_path);
global_ssl.issuers_chain_path = strdup(path);
ssl_free_global_issuers();
n = scandir(path, &de_list, 0, alphasort);
if (n < 0) {
memprintf(err, "%sglobal statement '%s': unable to scan directory '%s' : %s.\n",
err && *err ? *err : "", args[0], path, strerror(errno));
return -1;
}
for (i = 0; i < n; i++) {
struct dirent *de = de_list[i];
BIO *in = NULL;
char *warn = NULL;
snprintf(fp, sizeof(fp), "%s/%s", path, de->d_name);
free(de);
if (stat(fp, &buf) != 0) {
ha_warning("unable to stat certificate from file '%s' : %s.\n", fp, strerror(errno));
goto next;
}
if (!S_ISREG(buf.st_mode))
goto next;
in = BIO_new(BIO_s_file());
if (in == NULL)
goto next;
if (BIO_read_filename(in, fp) <= 0)
goto next;
ssl_load_global_issuer_from_BIO(in, fp, &warn);
if (warn) {
ha_warning("%s", warn);
ha_free(&warn);
}
next:
if (in)
BIO_free(in);
}
free(de_list);
return 0;
}
/* parse the "ssl-mode-async" keyword in global section.
* Returns <0 on alert, >0 on warning, 0 on success.
*/
static int ssl_parse_global_ssl_async(char **args, int section_type, struct proxy *curpx,
const struct proxy *defpx, const char *file, int line,
char **err)
{
#ifdef SSL_MODE_ASYNC
global_ssl.async = 1;
global.ssl_used_async_engines = nb_engines;
return 0;
#else
memprintf(err, "'%s': openssl library does not support async mode", args[0]);
return -1;
#endif
}
#if defined(USE_ENGINE) && !defined(OPENSSL_NO_ENGINE)
/* parse the "ssl-engine" keyword in global section.
* Returns <0 on alert, >0 on warning, 0 on success.
*/
static int ssl_parse_global_ssl_engine(char **args, int section_type, struct proxy *curpx,
const struct proxy *defpx, const char *file, int line,
char **err)
{
char *algo;
int ret = -1;
if (*(args[1]) == 0) {
memprintf(err, "global statement '%s' expects a valid engine name as an argument.", args[0]);
return ret;
}
if (*(args[2]) == 0) {
/* if no list of algorithms is given, it defaults to ALL */
algo = strdup("ALL");
goto add_engine;
}
/* otherwise the expected format is ssl-engine <engine_name> algo <list of algo> */
if (strcmp(args[2], "algo") != 0) {
memprintf(err, "global statement '%s' expects to have algo keyword.", args[0]);
return ret;
}
if (*(args[3]) == 0) {
memprintf(err, "global statement '%s' expects algorithm names as an argument.", args[0]);
return ret;
}
algo = strdup(args[3]);
add_engine:
if (ssl_init_single_engine(args[1], algo)==0) {
openssl_engines_initialized++;
ret = 0;
}
free(algo);
return ret;
}
#endif
#ifdef HAVE_SSL_PROVIDERS
/* parse the "ssl-propquery" keyword in global section.
* Returns <0 on alert, >0 on warning, 0 on success.
*/
static int ssl_parse_global_ssl_propquery(char **args, int section_type, struct proxy *curpx,
const struct proxy *defpx, const char *file, int line,
char **err)
{
int ret = -1;
if (*(args[1]) == 0) {
memprintf(err, "global statement '%s' expects a property string as an argument.", args[0]);
return ret;
}
if (EVP_set_default_properties(NULL, args[1]))
ret = 0;
return ret;
}
/* parse the "ssl-provider" keyword in global section.
* Returns <0 on alert, >0 on warning, 0 on success.
*/
static int ssl_parse_global_ssl_provider(char **args, int section_type, struct proxy *curpx,
const struct proxy *defpx, const char *file, int line,
char **err)
{
int ret = -1;
if (*(args[1]) == 0) {
memprintf(err, "global statement '%s' expects a valid engine provider name as an argument.", args[0]);
return ret;
}
if (ssl_init_provider(args[1]) == 0)
ret = 0;
return ret;
}
/* parse the "ssl-provider-path" keyword in global section.
* Returns <0 on alert, >0 on warning, 0 on success.
*/
static int ssl_parse_global_ssl_provider_path(char **args, int section_type, struct proxy *curpx,
const struct proxy *defpx, const char *file, int line,
char **err)
{
if (*(args[1]) == 0) {
memprintf(err, "global statement '%s' expects a directory path as an argument.", args[0]);
return -1;
}
OSSL_PROVIDER_set_default_search_path(NULL, args[1]);
return 0;
}
#endif
/* parse the "ssl-default-bind-ciphers" / "ssl-default-server-ciphers" keywords
* in global section. Returns <0 on alert, >0 on warning, 0 on success.
*/
static int ssl_parse_global_ciphers(char **args, int section_type, struct proxy *curpx,
const struct proxy *defpx, const char *file, int line,
char **err)
{
char **target;
target = (args[0][12] == 'b') ? &global_ssl.listen_default_ciphers : &global_ssl.connect_default_ciphers;
if (too_many_args(1, args, err, NULL))
return -1;
if (*(args[1]) == 0) {
memprintf(err, "global statement '%s' expects a cipher suite as an argument.", args[0]);
return -1;
}
free(*target);
*target = strdup(args[1]);
return 0;
}
/* parse the "ssl-default-bind-ciphersuites" / "ssl-default-server-ciphersuites" keywords
* in global section. Returns <0 on alert, >0 on warning, 0 on success.
*/
static int ssl_parse_global_ciphersuites(char **args, int section_type, struct proxy *curpx,
const struct proxy *defpx, const char *file, int line,
char **err)
{
#ifdef HAVE_SSL_CTX_SET_CIPHERSUITES
char **target;
target = (args[0][12] == 'b') ? &global_ssl.listen_default_ciphersuites : &global_ssl.connect_default_ciphersuites;
if (too_many_args(1, args, err, NULL))
return -1;
if (*(args[1]) == 0) {
memprintf(err, "global statement '%s' expects a cipher suite as an argument.", args[0]);
return -1;
}
free(*target);
*target = strdup(args[1]);
return 0;
#else /* ! HAVE_SSL_CTX_SET_CIPHERSUITES */
memprintf(err, "'%s' not supported for your SSL library (%s).", args[0], OPENSSL_VERSION_TEXT);
return -1;
#endif
}
#if defined(SSL_CTX_set1_curves_list)
/*
* parse the "ssl-default-bind-curves" keyword in a global section.
* Returns <0 on alert, >0 on warning, 0 on success.
*/
static int ssl_parse_global_curves(char **args, int section_type, struct proxy *curpx,
const struct proxy *defpx, const char *file, int line,
char **err)
{
char **target;
target = (args[0][12] == 'b') ? &global_ssl.listen_default_curves : &global_ssl.connect_default_curves;
if (too_many_args(1, args, err, NULL))
return -1;
if (*(args[1]) == 0) {
memprintf(err, "global statement '%s' expects a curves suite as an arguments.", args[0]);
return -1;
}
free(*target);
*target = strdup(args[1]);
return 0;
}
#endif
#if defined(SSL_CTX_set1_sigalgs_list)
/*
* parse the "ssl-default-bind-sigalgs" and "ssl-default-server-sigalgs" keyword in a global section.
* Returns <0 on alert, >0 on warning, 0 on success.
*/
static int ssl_parse_global_sigalgs(char **args, int section_type, struct proxy *curpx,
const struct proxy *defpx, const char *file, int line,
char **err)
{
char **target;
target = (args[0][12] == 'b') ? &global_ssl.listen_default_sigalgs : &global_ssl.connect_default_sigalgs;
if (too_many_args(1, args, err, NULL))
return -1;
if (*(args[1]) == 0) {
memprintf(err, "global statement '%s' expects a curves suite as an arguments.", args[0]);
return -1;
}
free(*target);
*target = strdup(args[1]);
return 0;
}
#endif
#if defined(SSL_CTX_set1_client_sigalgs_list)
/*
* parse the "ssl-default-bind-client-sigalgs" keyword in a global section.
* Returns <0 on alert, >0 on warning, 0 on success.
*/
static int ssl_parse_global_client_sigalgs(char **args, int section_type, struct proxy *curpx,
const struct proxy *defpx, const char *file, int line,
char **err)
{
char **target;
target = (args[0][12] == 'b') ? &global_ssl.listen_default_client_sigalgs : &global_ssl.connect_default_client_sigalgs;
if (too_many_args(1, args, err, NULL))
return -1;
if (*(args[1]) == 0) {
memprintf(err, "global statement '%s' expects signature algorithms as an arguments.", args[0]);
return -1;
}
free(*target);
*target = strdup(args[1]);
return 0;
}
#endif
/* parse various global tune.ssl settings consisting in positive integers.
* Returns <0 on alert, >0 on warning, 0 on success.
*/
static int ssl_parse_global_int(char **args, int section_type, struct proxy *curpx,
const struct proxy *defpx, const char *file, int line,
char **err)
{
int *target;
if (strcmp(args[0], "tune.ssl.cachesize") == 0)
target = &global.tune.sslcachesize;
else if (strcmp(args[0], "tune.ssl.maxrecord") == 0)
target = (int *)&global_ssl.max_record;
else if (strcmp(args[0], "tune.ssl.hard-maxrecord") == 0)
target = (int *)&global_ssl.hard_max_record;
else if (strcmp(args[0], "tune.ssl.ssl-ctx-cache-size") == 0)
target = &global_ssl.ctx_cache;
else if (strcmp(args[0], "maxsslconn") == 0)
target = &global.maxsslconn;
else if (strcmp(args[0], "tune.ssl.capture-buffer-size") == 0)
target = &global_ssl.capture_buffer_size;
else if (strcmp(args[0], "tune.ssl.capture-cipherlist-size") == 0) {
target = &global_ssl.capture_buffer_size;
ha_warning("parsing [%s:%d]: '%s' is deprecated and will be removed in version 2.7. Please use 'tune.ssl.capture-buffer-size' instead.\n",
file, line, args[0]);
}
else {
memprintf(err, "'%s' keyword not unhandled (please report this bug).", args[0]);
return -1;
}
if (too_many_args(1, args, err, NULL))
return -1;
if (*(args[1]) == 0) {
memprintf(err, "'%s' expects an integer argument.", args[0]);
return -1;
}
*target = atoi(args[1]);
if (*target < 0) {
memprintf(err, "'%s' expects a positive numeric value.", args[0]);
return -1;
}
return 0;
}
static int ssl_parse_global_capture_buffer(char **args, int section_type, struct proxy *curpx,
const struct proxy *defpx, const char *file, int line,
char **err)
{
int ret;
ret = ssl_parse_global_int(args, section_type, curpx, defpx, file, line, err);
if (ret != 0)
return ret;
if (pool_head_ssl_capture) {
memprintf(err, "'%s' is already configured.", args[0]);
return -1;
}
pool_head_ssl_capture = create_pool("ssl-capture", sizeof(struct ssl_capture) + global_ssl.capture_buffer_size, MEM_F_SHARED);
if (!pool_head_ssl_capture) {
memprintf(err, "Out of memory error.");
return -1;
}
return 0;
}
/* init the SSLKEYLOGFILE pool */
#ifdef HAVE_SSL_KEYLOG
static int ssl_parse_global_keylog(char **args, int section_type, struct proxy *curpx,
const struct proxy *defpx, const char *file, int line,
char **err)
{
if (too_many_args(1, args, err, NULL))
return -1;
if (strcmp(args[1], "on") == 0)
global_ssl.keylog = 1;
else if (strcmp(args[1], "off") == 0)
global_ssl.keylog = 0;
else {
memprintf(err, "'%s' expects either 'on' or 'off' but got '%s'.", args[0], args[1]);
return -1;
}
if (pool_head_ssl_keylog) /* already configured */
return 0;
pool_head_ssl_keylog = create_pool("ssl-keylogfile", sizeof(struct ssl_keylog), MEM_F_SHARED);
if (!pool_head_ssl_keylog) {
memprintf(err, "Out of memory error.");
return -1;
}
pool_head_ssl_keylog_str = create_pool("ssl-keylogfile-str", sizeof(char) * SSL_KEYLOG_MAX_SECRET_SIZE, MEM_F_SHARED);
if (!pool_head_ssl_keylog_str) {
memprintf(err, "Out of memory error.");
return -1;
}
return 0;
}
#else
static int ssl_parse_global_keylog(char **args, int section_type, struct proxy *curpx,
const struct proxy *defpx, const char *file, int line,
char **err)
{
memprintf(err, "'%s' requires at least OpenSSL 1.1.1.", args[0]);
return -1;
}
#endif
/* parse "ssl.force-private-cache".
* Returns <0 on alert, >0 on warning, 0 on success.
*/
static int ssl_parse_global_private_cache(char **args, int section_type, struct proxy *curpx,
const struct proxy *defpx, const char *file, int line,
char **err)
{
if (too_many_args(0, args, err, NULL))
return -1;
global_ssl.private_cache = 1;
return 0;
}
/* parse "ssl.lifetime".
* Returns <0 on alert, >0 on warning, 0 on success.
*/
static int ssl_parse_global_lifetime(char **args, int section_type, struct proxy *curpx,
const struct proxy *defpx, const char *file, int line,
char **err)
{
const char *res;
if (too_many_args(1, args, err, NULL))
return -1;
if (*(args[1]) == 0) {
memprintf(err, "'%s' expects ssl sessions <lifetime> in seconds as argument.", args[0]);
return -1;
}
res = parse_time_err(args[1], &global_ssl.life_time, TIME_UNIT_S);
if (res == PARSE_TIME_OVER) {
memprintf(err, "timer overflow in argument '%s' to <%s> (maximum value is 2147483647 s or ~68 years).",
args[1], args[0]);
return -1;
}
else if (res == PARSE_TIME_UNDER) {
memprintf(err, "timer underflow in argument '%s' to <%s> (minimum non-null value is 1 s).",
args[1], args[0]);
return -1;
}
else if (res) {
memprintf(err, "unexpected character '%c' in argument to <%s>.", *res, args[0]);
return -1;
}
return 0;
}
#ifndef OPENSSL_NO_DH
/* parse "ssl-dh-param-file".
* Returns <0 on alert, >0 on warning, 0 on success.
*/
static int ssl_parse_global_dh_param_file(char **args, int section_type, struct proxy *curpx,
const struct proxy *defpx, const char *file, int line,
char **err)
{
if (too_many_args(1, args, err, NULL))
return -1;
if (*(args[1]) == 0) {
memprintf(err, "'%s' expects a file path as an argument.", args[0]);
return -1;
}
if (ssl_sock_load_global_dh_param_from_file(args[1])) {
memprintf(err, "'%s': unable to load DH parameters from file <%s>.", args[0], args[1]);
return -1;
}
return 0;
}
#endif
/* parse "ssl.default-dh-param".
* Returns <0 on alert, >0 on warning, 0 on success.
*/
static int ssl_parse_global_default_dh(char **args, int section_type, struct proxy *curpx,
const struct proxy *defpx, const char *file, int line,
char **err)
{
#ifndef OPENSSL_NO_DH
if (too_many_args(1, args, err, NULL))
return -1;
if (*(args[1]) == 0) {
memprintf(err, "'%s' expects an integer argument.", args[0]);
return -1;
}
global_ssl.default_dh_param = atoi(args[1]);
if (global_ssl.default_dh_param < 1024) {
memprintf(err, "'%s' expects a value >= 1024.", args[0]);
return -1;
}
return 0;
#else
memprintf(err, "'%s' is not supported by %s, keyword ignored", args[0], OpenSSL_version(OPENSSL_VERSION));
return ERR_WARN;
#endif
}
/*
* parse "ssl-load-extra-files".
* multiple arguments are allowed: "bundle", "sctl", "ocsp", "issuer", "all", "none"
*/
static int ssl_parse_global_extra_files(char **args, int section_type, struct proxy *curpx,
const struct proxy *defpx, const char *file, int line,
char **err)
{
int i;
int gf = SSL_GF_NONE;
if (*(args[1]) == 0)
goto err_arg;
for (i = 1; *args[i]; i++) {
if (strcmp("bundle", args[i]) == 0) {
gf |= SSL_GF_BUNDLE;
} else if (strcmp("sctl", args[i]) == 0) {
gf |= SSL_GF_SCTL;
} else if (strcmp("ocsp", args[i]) == 0){
gf |= SSL_GF_OCSP;
} else if (strcmp("issuer", args[i]) == 0){
gf |= SSL_GF_OCSP_ISSUER;
} else if (strcmp("key", args[i]) == 0) {
gf |= SSL_GF_KEY;
} else if (strcmp("none", args[i]) == 0) {
if (gf != SSL_GF_NONE)
goto err_alone;
gf = SSL_GF_NONE;
i++;
break;
} else if (strcmp("all", args[i]) == 0) {
if (gf != SSL_GF_NONE)
goto err_alone;
gf = SSL_GF_ALL;
i++;
break;
} else {
goto err_arg;
}
}
/* break from loop but there are still arguments */
if (*args[i])
goto err_alone;
global_ssl.extra_files = gf;
return 0;
err_alone:
memprintf(err, "'%s' 'none' and 'all' can be only used alone", args[0]);
return -1;
err_arg:
memprintf(err, "'%s' expects one or multiple arguments (none, all, bundle, sctl, ocsp, issuer).", args[0]);
return -1;
}
/* parse 'ssl-load-extra-del-ext */
static int ssl_parse_global_extra_noext(char **args, int section_type, struct proxy *curpx,
const struct proxy *defpx, const char *file, int line,
char **err)
{
global_ssl.extra_files_noext = 1;
return 0;
}
/***************************** Bind keyword Parsing ********************************************/
/* for ca-file and ca-verify-file */
static int ssl_bind_parse_ca_file_common(char **args, int cur_arg, char **ca_file_p, int from_cli, char **err)
{
if (!*args[cur_arg + 1]) {
memprintf(err, "'%s' : missing CAfile path", args[cur_arg]);
return ERR_ALERT | ERR_FATAL;
}
if ((*args[cur_arg + 1] != '/') && (*args[cur_arg + 1] != '@') && global_ssl.ca_base)
memprintf(ca_file_p, "%s/%s", global_ssl.ca_base, args[cur_arg + 1]);
else
memprintf(ca_file_p, "%s", args[cur_arg + 1]);
if (!ssl_store_load_locations_file(*ca_file_p, !from_cli, CAFILE_CERT)) {
memprintf(err, "'%s' : unable to load %s", args[cur_arg], *ca_file_p);
return ERR_ALERT | ERR_FATAL;
}
return 0;
}
/* parse the "ca-file" bind keyword */
static int ssl_bind_parse_ca_file(char **args, int cur_arg, struct proxy *px, struct ssl_bind_conf *conf, int from_cli, char **err)
{
return ssl_bind_parse_ca_file_common(args, cur_arg, &conf->ca_file, from_cli, err);
}
static int bind_parse_ca_file(char **args, int cur_arg, struct proxy *px, struct bind_conf *conf, char **err)
{
return ssl_bind_parse_ca_file(args, cur_arg, px, &conf->ssl_conf, 0, err);
}
/* parse the "ca-verify-file" bind keyword */
static int ssl_bind_parse_ca_verify_file(char **args, int cur_arg, struct proxy *px, struct ssl_bind_conf *conf, int from_cli, char **err)
{
return ssl_bind_parse_ca_file_common(args, cur_arg, &conf->ca_verify_file, from_cli, err);
}
static int bind_parse_ca_verify_file(char **args, int cur_arg, struct proxy *px, struct bind_conf *conf, char **err)
{
return ssl_bind_parse_ca_verify_file(args, cur_arg, px, &conf->ssl_conf, 0, err);
}
/* parse the "ca-sign-file" bind keyword */
static int bind_parse_ca_sign_file(char **args, int cur_arg, struct proxy *px, struct bind_conf *conf, char **err)
{
if (!*args[cur_arg + 1]) {
memprintf(err, "'%s' : missing CAfile path", args[cur_arg]);
return ERR_ALERT | ERR_FATAL;
}
if ((*args[cur_arg + 1] != '/') && (*args[cur_arg + 1] != '@') && global_ssl.ca_base)
memprintf(&conf->ca_sign_file, "%s/%s", global_ssl.ca_base, args[cur_arg + 1]);
else
memprintf(&conf->ca_sign_file, "%s", args[cur_arg + 1]);
return 0;
}
/* parse the "ca-sign-pass" bind keyword */
static int bind_parse_ca_sign_pass(char **args, int cur_arg, struct proxy *px, struct bind_conf *conf, char **err)
{
if (!*args[cur_arg + 1]) {
memprintf(err, "'%s' : missing CAkey password", args[cur_arg]);
return ERR_ALERT | ERR_FATAL;
}
memprintf(&conf->ca_sign_pass, "%s", args[cur_arg + 1]);
return 0;
}
/* parse the "ciphers" bind keyword */
static int ssl_bind_parse_ciphers(char **args, int cur_arg, struct proxy *px, struct ssl_bind_conf *conf, int from_cli, char **err)
{
if (!*args[cur_arg + 1]) {
memprintf(err, "'%s' : missing cipher suite", args[cur_arg]);
return ERR_ALERT | ERR_FATAL;
}
free(conf->ciphers);
conf->ciphers = strdup(args[cur_arg + 1]);
return 0;
}
static int bind_parse_ciphers(char **args, int cur_arg, struct proxy *px, struct bind_conf *conf, char **err)
{
return ssl_bind_parse_ciphers(args, cur_arg, px, &conf->ssl_conf, 0, err);
}
/* parse the "ciphersuites" bind keyword */
static int ssl_bind_parse_ciphersuites(char **args, int cur_arg, struct proxy *px, struct ssl_bind_conf *conf, int from_cli, char **err)
{
#ifdef HAVE_SSL_CTX_SET_CIPHERSUITES
if (!*args[cur_arg + 1]) {
memprintf(err, "'%s' : missing cipher suite", args[cur_arg]);
return ERR_ALERT | ERR_FATAL;
}
free(conf->ciphersuites);
conf->ciphersuites = strdup(args[cur_arg + 1]);
return 0;
#else
memprintf(err, "'%s' keyword not supported for this SSL library version (%s).", args[cur_arg], OPENSSL_VERSION_TEXT);
return ERR_ALERT | ERR_FATAL;
#endif
}
static int bind_parse_ciphersuites(char **args, int cur_arg, struct proxy *px, struct bind_conf *conf, char **err)
{
return ssl_bind_parse_ciphersuites(args, cur_arg, px, &conf->ssl_conf, 0, err);
}
/* parse the "crt" bind keyword. Returns a set of ERR_* flags possibly with an error in <err>. */
static int bind_parse_crt(char **args, int cur_arg, struct proxy *px, struct bind_conf *conf, char **err)
{
char path[MAXPATHLEN];
int default_crt = *args[cur_arg] == 'd' ? 1 : 0;
if (!*args[cur_arg + 1]) {
memprintf(err, "'%s' : missing certificate location", args[cur_arg]);
return ERR_ALERT | ERR_FATAL;
}
if ((*args[cur_arg + 1] != '@') && (*args[cur_arg + 1] != '/' ) && global_ssl.crt_base) {
if ((strlen(global_ssl.crt_base) + 1 + strlen(args[cur_arg + 1]) + 1) > sizeof(path) ||
snprintf(path, sizeof(path), "%s/%s", global_ssl.crt_base, args[cur_arg + 1]) > sizeof(path)) {
memprintf(err, "'%s' : path too long", args[cur_arg]);
return ERR_ALERT | ERR_FATAL;
}
return ssl_sock_load_cert(path, conf, default_crt, err);
}
return ssl_sock_load_cert(args[cur_arg + 1], conf, default_crt, err);
}
/* parse the "crt-list" bind keyword. Returns a set of ERR_* flags possibly with an error in <err>. */
static int bind_parse_crt_list(char **args, int cur_arg, struct proxy *px, struct bind_conf *conf, char **err)
{
int err_code;
if (!*args[cur_arg + 1]) {
memprintf(err, "'%s' : missing certificate location", args[cur_arg]);
return ERR_ALERT | ERR_FATAL;
}
err_code = ssl_sock_load_cert_list_file(args[cur_arg + 1], 0, conf, px, err);
if (err_code)
memprintf(err, "'%s' : %s", args[cur_arg], *err);
return err_code;
}
/* parse the "crl-file" bind keyword */
static int ssl_bind_parse_crl_file(char **args, int cur_arg, struct proxy *px, struct ssl_bind_conf *conf, int from_cli, char **err)
{
#ifndef X509_V_FLAG_CRL_CHECK
memprintf(err, "'%s' : library does not support CRL verify", args[cur_arg]);
return ERR_ALERT | ERR_FATAL;
#else
if (!*args[cur_arg + 1]) {
memprintf(err, "'%s' : missing CRLfile path", args[cur_arg]);
return ERR_ALERT | ERR_FATAL;
}
if ((*args[cur_arg + 1] != '/') && (*args[cur_arg + 1] != '@') && global_ssl.ca_base)
memprintf(&conf->crl_file, "%s/%s", global_ssl.ca_base, args[cur_arg + 1]);
else
memprintf(&conf->crl_file, "%s", args[cur_arg + 1]);
if (!ssl_store_load_locations_file(conf->crl_file, !from_cli, CAFILE_CRL)) {
memprintf(err, "'%s' : unable to load %s", args[cur_arg], conf->crl_file);
return ERR_ALERT | ERR_FATAL;
}
return 0;
#endif
}
static int bind_parse_crl_file(char **args, int cur_arg, struct proxy *px, struct bind_conf *conf, char **err)
{
return ssl_bind_parse_crl_file(args, cur_arg, px, &conf->ssl_conf, 0, err);
}
/* parse the "curves" bind keyword keyword */
static int ssl_bind_parse_curves(char **args, int cur_arg, struct proxy *px, struct ssl_bind_conf *conf, int from_cli, char **err)
{
#if defined(SSL_CTX_set1_curves_list)
if (!*args[cur_arg + 1]) {
memprintf(err, "'%s' : missing curve suite", args[cur_arg]);
return ERR_ALERT | ERR_FATAL;
}
conf->curves = strdup(args[cur_arg + 1]);
return 0;
#else
memprintf(err, "'%s' : library does not support curve suite", args[cur_arg]);
return ERR_ALERT | ERR_FATAL;
#endif
}
static int bind_parse_curves(char **args, int cur_arg, struct proxy *px, struct bind_conf *conf, char **err)
{
return ssl_bind_parse_curves(args, cur_arg, px, &conf->ssl_conf, 0, err);
}
/* parse the "sigalgs" bind keyword */
static int ssl_bind_parse_sigalgs(char **args, int cur_arg, struct proxy *px, struct ssl_bind_conf *conf, int from_cli, char **err)
{
#if defined(SSL_CTX_set1_sigalgs_list)
if (!*args[cur_arg + 1]) {
memprintf(err, "'%s' : missing signature algorithm list", args[cur_arg]);
return ERR_ALERT | ERR_FATAL;
}
conf->sigalgs = strdup(args[cur_arg + 1]);
return 0;
#else
memprintf(err, "'%s' : library does not support setting signature algorithms", args[cur_arg]);
return ERR_ALERT | ERR_FATAL;
#endif
}
static int bind_parse_sigalgs(char **args, int cur_arg, struct proxy *px, struct bind_conf *conf, char **err)
{
return ssl_bind_parse_sigalgs(args, cur_arg, px, &conf->ssl_conf, 0, err);
}
/* parse the "client-sigalgs" bind keyword */
static int ssl_bind_parse_client_sigalgs(char **args, int cur_arg, struct proxy *px, struct ssl_bind_conf *conf, int from_cli, char **err)
{
#if defined(SSL_CTX_set1_client_sigalgs_list)
if (!*args[cur_arg + 1]) {
memprintf(err, "'%s' : missing signature algorithm list", args[cur_arg]);
return ERR_ALERT | ERR_FATAL;
}
conf->client_sigalgs = strdup(args[cur_arg + 1]);
return 0;
#else
memprintf(err, "'%s' : library does not support setting signature algorithms", args[cur_arg]);
return ERR_ALERT | ERR_FATAL;
#endif
}
static int bind_parse_client_sigalgs(char **args, int cur_arg, struct proxy *px, struct bind_conf *conf, char **err)
{
return ssl_bind_parse_client_sigalgs(args, cur_arg, px, &conf->ssl_conf, 0, err);
}
/* parse the "ecdhe" bind keyword keyword */
static int ssl_bind_parse_ecdhe(char **args, int cur_arg, struct proxy *px, struct ssl_bind_conf *conf, int from_cli, char **err)
{
#if !defined(SSL_CTX_set_tmp_ecdh)
memprintf(err, "'%s' : library does not support elliptic curve Diffie-Hellman (too old)", args[cur_arg]);
return ERR_ALERT | ERR_FATAL;
#elif defined(OPENSSL_NO_ECDH)
memprintf(err, "'%s' : library does not support elliptic curve Diffie-Hellman (disabled via OPENSSL_NO_ECDH)", args[cur_arg]);
return ERR_ALERT | ERR_FATAL;
#else
if (!*args[cur_arg + 1]) {
memprintf(err, "'%s' : missing named curve", args[cur_arg]);
return ERR_ALERT | ERR_FATAL;
}
conf->ecdhe = strdup(args[cur_arg + 1]);
return 0;
#endif
}
static int bind_parse_ecdhe(char **args, int cur_arg, struct proxy *px, struct bind_conf *conf, char **err)
{
return ssl_bind_parse_ecdhe(args, cur_arg, px, &conf->ssl_conf, 0, err);
}
/* parse the "crt-ignore-err" and "ca-ignore-err" bind keywords */
static int bind_parse_ignore_err(char **args, int cur_arg, struct proxy *px, struct bind_conf *conf, char **err)
{
int code;
char *s1 = NULL, *s2 = NULL;
char *token = NULL;
char *p = args[cur_arg + 1];
char *str;
unsigned long long *ignerr = conf->crt_ignerr_bitfield;
if (!*p) {
memprintf(err, "'%s' : missing error IDs list", args[cur_arg]);
return ERR_ALERT | ERR_FATAL;
}
if (strcmp(args[cur_arg], "ca-ignore-err") == 0)
ignerr = conf->ca_ignerr_bitfield;
if (strcmp(p, "all") == 0) {
cert_ignerr_bitfield_set_all(ignerr);
return 0;
}
/* copy the string to be able to dump the complete one in case of
* error, because strtok_r is writing \0 inside. */
str = strdup(p);
if (!str) {
memprintf(err, "'%s' : Could not allocate memory", args[cur_arg]);
return ERR_ALERT | ERR_FATAL;
}
s1 = str;
while ((token = strtok_r(s1, ",", &s2))) {
s1 = NULL;
if (isdigit((int)*token)) {
code = atoi(token);
if ((code <= 0) || (code > SSL_MAX_VFY_ERROR_CODE)) {
memprintf(err, "'%s' : ID '%d' out of range (1..%d) in error IDs list '%s'",
args[cur_arg], code, SSL_MAX_VFY_ERROR_CODE, args[cur_arg + 1]);
free(str);
return ERR_ALERT | ERR_FATAL;
}
} else {
code = x509_v_err_str_to_int(token);
if (code < 0) {
memprintf(err, "'%s' : error constant '%s' unknown in error IDs list '%s'",
args[cur_arg], token, args[cur_arg + 1]);
free(str);
return ERR_ALERT | ERR_FATAL;
}
}
cert_ignerr_bitfield_set(ignerr, code);
}
free(str);
return 0;
}
/* parse tls_method_options "no-xxx" and "force-xxx" */
static int parse_tls_method_options(char *arg, struct tls_version_filter *methods, char **err)
{
uint16_t v;
char *p;
p = strchr(arg, '-');
if (!p)
goto fail;
p++;
if (strcmp(p, "sslv3") == 0)
v = CONF_SSLV3;
else if (strcmp(p, "tlsv10") == 0)
v = CONF_TLSV10;
else if (strcmp(p, "tlsv11") == 0)
v = CONF_TLSV11;
else if (strcmp(p, "tlsv12") == 0)
v = CONF_TLSV12;
else if (strcmp(p, "tlsv13") == 0)
v = CONF_TLSV13;
else
goto fail;
if (!strncmp(arg, "no-", 3))
methods->flags |= methodVersions[v].flag;
else if (!strncmp(arg, "force-", 6))
methods->min = methods->max = v;
else
goto fail;
return 0;
fail:
memprintf(err, "'%s' : option not implemented", arg);
return ERR_ALERT | ERR_FATAL;
}
static int bind_parse_tls_method_options(char **args, int cur_arg, struct proxy *px, struct bind_conf *conf, char **err)
{
return parse_tls_method_options(args[cur_arg], &conf->ssl_conf.ssl_methods, err);
}
static int srv_parse_tls_method_options(char **args, int *cur_arg, struct proxy *px, struct server *newsrv, char **err)
{
return parse_tls_method_options(args[*cur_arg], &newsrv->ssl_ctx.methods, err);
}
/* parse tls_method min/max: "ssl-min-ver" and "ssl-max-ver" */
static int parse_tls_method_minmax(char **args, int cur_arg, struct tls_version_filter *methods, char **err)
{
uint16_t i, v = 0;
char *argv = args[cur_arg + 1];
if (!*argv) {
memprintf(err, "'%s' : missing the ssl/tls version", args[cur_arg]);
return ERR_ALERT | ERR_FATAL;
}
for (i = CONF_TLSV_MIN; i <= CONF_TLSV_MAX; i++)
if (strcmp(argv, methodVersions[i].name) == 0)
v = i;
if (!v) {
memprintf(err, "'%s' : unknown ssl/tls version", args[cur_arg + 1]);
return ERR_ALERT | ERR_FATAL;
}
if (strcmp("ssl-min-ver", args[cur_arg]) == 0)
methods->min = v;
else if (strcmp("ssl-max-ver", args[cur_arg]) == 0)
methods->max = v;
else {
memprintf(err, "'%s' : option not implemented", args[cur_arg]);
return ERR_ALERT | ERR_FATAL;
}
return 0;
}
static int ssl_bind_parse_tls_method_minmax(char **args, int cur_arg, struct proxy *px, struct ssl_bind_conf *conf, int from_cli, char **err)
{
int ret;
#if (HA_OPENSSL_VERSION_NUMBER < 0x10101000L) && !defined(OPENSSL_IS_BORINGSSL)
ha_warning("crt-list: ssl-min-ver and ssl-max-ver are not supported with this Openssl version (skipped).\n");
#endif
ret = parse_tls_method_minmax(args, cur_arg, &conf->ssl_methods_cfg, err);
if (ret != ERR_NONE)
return ret;
conf->ssl_methods.min = conf->ssl_methods_cfg.min;
conf->ssl_methods.max = conf->ssl_methods_cfg.max;
return ret;
}
static int bind_parse_tls_method_minmax(char **args, int cur_arg, struct proxy *px, struct bind_conf *conf, char **err)
{
return parse_tls_method_minmax(args, cur_arg, &conf->ssl_conf.ssl_methods, err);
}
static int srv_parse_tls_method_minmax(char **args, int *cur_arg, struct proxy *px, struct server *newsrv, char **err)
{
return parse_tls_method_minmax(args, *cur_arg, &newsrv->ssl_ctx.methods, err);
}
/* parse the "no-tls-tickets" bind keyword */
static int bind_parse_no_tls_tickets(char **args, int cur_arg, struct proxy *px, struct bind_conf *conf, char **err)
{
conf->ssl_options |= BC_SSL_O_NO_TLS_TICKETS;
return 0;
}
/* parse the "allow-0rtt" bind keyword */
static int ssl_bind_parse_allow_0rtt(char **args, int cur_arg, struct proxy *px, struct ssl_bind_conf *conf, int from_cli, char **err)
{
conf->early_data = 1;
return 0;
}
static int bind_parse_allow_0rtt(char **args, int cur_arg, struct proxy *px, struct bind_conf *conf, char **err)
{
conf->ssl_conf.early_data = 1;
return 0;
}
/* parse the "npn" bind keyword */
static int ssl_bind_parse_npn(char **args, int cur_arg, struct proxy *px, struct ssl_bind_conf *conf, int from_cli, char **err)
{
#if defined(OPENSSL_NPN_NEGOTIATED) && !defined(OPENSSL_NO_NEXTPROTONEG)
char *p1, *p2;
if (!*args[cur_arg + 1]) {
memprintf(err, "'%s' : missing the comma-delimited NPN protocol suite", args[cur_arg]);
return ERR_ALERT | ERR_FATAL;
}
free(conf->npn_str);
/* the NPN string is built as a suite of (<len> <name>)*,
* so we reuse each comma to store the next <len> and need
* one more for the end of the string.
*/
conf->npn_len = strlen(args[cur_arg + 1]) + 1;
conf->npn_str = calloc(1, conf->npn_len + 1);
if (!conf->npn_str) {
memprintf(err, "out of memory");
return ERR_ALERT | ERR_FATAL;
}
memcpy(conf->npn_str + 1, args[cur_arg + 1], conf->npn_len);
/* replace commas with the name length */
p1 = conf->npn_str;
p2 = p1 + 1;
while (1) {
p2 = memchr(p1 + 1, ',', conf->npn_str + conf->npn_len - (p1 + 1));
if (!p2)
p2 = p1 + 1 + strlen(p1 + 1);
if (p2 - (p1 + 1) > 255) {
*p2 = '\0';
memprintf(err, "'%s' : NPN protocol name too long : '%s'", args[cur_arg], p1 + 1);
return ERR_ALERT | ERR_FATAL;
}
*p1 = p2 - (p1 + 1);
p1 = p2;
if (!*p2)
break;
*(p2++) = '\0';
}
return 0;
#else
memprintf(err, "'%s' : library does not support TLS NPN extension", args[cur_arg]);
return ERR_ALERT | ERR_FATAL;
#endif
}
static int bind_parse_npn(char **args, int cur_arg, struct proxy *px, struct bind_conf *conf, char **err)
{
return ssl_bind_parse_npn(args, cur_arg, px, &conf->ssl_conf, 0, err);
}
/* Parses a alpn string and converts it to the right format for the SSL api */
int ssl_sock_parse_alpn(char *arg, char **alpn_str, int *alpn_len, char **err)
{
char *p1, *p2, *alpn = NULL;
int len, ret = 0;
*alpn_str = NULL;
*alpn_len = 0;
if (!*arg) {
memprintf(err, "missing the comma-delimited ALPN protocol suite");
goto error;
}
/* the ALPN string is built as a suite of (<len> <name>)*,
* so we reuse each comma to store the next <len> and need
* one more for the end of the string.
*/
len = strlen(arg) + 1;
alpn = calloc(1, len+1);
if (!alpn) {
memprintf(err, "'%s' : out of memory", arg);
goto error;
}
memcpy(alpn+1, arg, len);
/* replace commas with the name length */
p1 = alpn;
p2 = p1 + 1;
while (1) {
p2 = memchr(p1 + 1, ',', alpn + len - (p1 + 1));
if (!p2)
p2 = p1 + 1 + strlen(p1 + 1);
if (p2 - (p1 + 1) > 255) {
*p2 = '\0';
memprintf(err, "ALPN protocol name too long : '%s'", p1 + 1);
goto error;
}
*p1 = p2 - (p1 + 1);
p1 = p2;
if (!*p2)
break;
*(p2++) = '\0';
}
*alpn_str = alpn;
*alpn_len = len;
out:
return ret;
error:
free(alpn);
ret = ERR_ALERT | ERR_FATAL;
goto out;
}
/* parse the "alpn" bind keyword */
static int ssl_bind_parse_alpn(char **args, int cur_arg, struct proxy *px, struct ssl_bind_conf *conf, int from_cli, char **err)
{
#ifdef TLSEXT_TYPE_application_layer_protocol_negotiation
int ret;
free(conf->alpn_str);
ret = ssl_sock_parse_alpn(args[cur_arg + 1], &conf->alpn_str, &conf->alpn_len, err);
if (ret)
memprintf(err, "'%s' : %s", args[cur_arg], *err);
return ret;
#else
memprintf(err, "'%s' : library does not support TLS ALPN extension", args[cur_arg]);
return ERR_ALERT | ERR_FATAL;
#endif
}
static int bind_parse_alpn(char **args, int cur_arg, struct proxy *px, struct bind_conf *conf, char **err)
{
return ssl_bind_parse_alpn(args, cur_arg, px, &conf->ssl_conf, 0, err);
}
/* parse the "ssl" bind keyword */
static int bind_parse_ssl(char **args, int cur_arg, struct proxy *px, struct bind_conf *conf, char **err)
{
conf->options |= BC_O_USE_SSL;
if (global_ssl.listen_default_ciphers && !conf->ssl_conf.ciphers)
conf->ssl_conf.ciphers = strdup(global_ssl.listen_default_ciphers);
#if defined(SSL_CTX_set1_curves_list)
if (global_ssl.listen_default_curves && !conf->ssl_conf.curves)
conf->ssl_conf.curves = strdup(global_ssl.listen_default_curves);
#endif
#if defined(SSL_CTX_set1_sigalgs_list)
if (global_ssl.listen_default_sigalgs && !conf->ssl_conf.sigalgs)
conf->ssl_conf.sigalgs = strdup(global_ssl.listen_default_sigalgs);
#endif
#ifdef HAVE_SSL_CTX_SET_CIPHERSUITES
if (global_ssl.listen_default_ciphersuites && !conf->ssl_conf.ciphersuites)
conf->ssl_conf.ciphersuites = strdup(global_ssl.listen_default_ciphersuites);
#endif
conf->ssl_options |= global_ssl.listen_default_ssloptions;
conf->ssl_conf.ssl_methods.flags |= global_ssl.listen_default_sslmethods.flags;
if (!conf->ssl_conf.ssl_methods.min)
conf->ssl_conf.ssl_methods.min = global_ssl.listen_default_sslmethods.min;
if (!conf->ssl_conf.ssl_methods.max)
conf->ssl_conf.ssl_methods.max = global_ssl.listen_default_sslmethods.max;
return 0;
}
/* parse the "prefer-client-ciphers" bind keyword */
static int bind_parse_pcc(char **args, int cur_arg, struct proxy *px, struct bind_conf *conf, char **err)
{
conf->ssl_options |= BC_SSL_O_PREF_CLIE_CIPH;
return 0;
}
/* parse the "generate-certificates" bind keyword */
static int bind_parse_generate_certs(char **args, int cur_arg, struct proxy *px, struct bind_conf *conf, char **err)
{
#if (defined SSL_CTRL_SET_TLSEXT_HOSTNAME && !defined SSL_NO_GENERATE_CERTIFICATES)
conf->options |= BC_O_GENERATE_CERTS;
#else
memprintf(err, "%sthis version of openssl cannot generate SSL certificates.\n",
err && *err ? *err : "");
#endif
return 0;
}
/* parse the "strict-sni" bind keyword */
static int bind_parse_strict_sni(char **args, int cur_arg, struct proxy *px, struct bind_conf *conf, char **err)
{
conf->strict_sni = 1;
return 0;
}
/* parse the "tls-ticket-keys" bind keyword */
static int bind_parse_tls_ticket_keys(char **args, int cur_arg, struct proxy *px, struct bind_conf *conf, char **err)
{
#if (defined SSL_CTRL_SET_TLSEXT_TICKET_KEY_CB && TLS_TICKETS_NO > 0)
FILE *f = NULL;
int i = 0;
char thisline[LINESIZE];
struct tls_keys_ref *keys_ref = NULL;
if (!*args[cur_arg + 1]) {
memprintf(err, "'%s' : missing TLS ticket keys file path", args[cur_arg]);
goto fail;
}
keys_ref = tlskeys_ref_lookup(args[cur_arg + 1]);
if (keys_ref) {
keys_ref->refcount++;
conf->keys_ref = keys_ref;
return 0;
}
keys_ref = calloc(1, sizeof(*keys_ref));
if (!keys_ref) {
memprintf(err, "'%s' : allocation error", args[cur_arg+1]);
goto fail;
}
keys_ref->tlskeys = malloc(TLS_TICKETS_NO * sizeof(union tls_sess_key));
if (!keys_ref->tlskeys) {
memprintf(err, "'%s' : allocation error", args[cur_arg+1]);
goto fail;
}
if ((f = fopen(args[cur_arg + 1], "r")) == NULL) {
memprintf(err, "'%s' : unable to load ssl tickets keys file", args[cur_arg+1]);
goto fail;
}
keys_ref->filename = strdup(args[cur_arg + 1]);
if (!keys_ref->filename) {
memprintf(err, "'%s' : allocation error", args[cur_arg+1]);
goto fail;
}
keys_ref->key_size_bits = 0;
while (fgets(thisline, sizeof(thisline), f) != NULL) {
int len = strlen(thisline);
int dec_size;
/* Strip newline characters from the end */
if(thisline[len - 1] == '\n')
thisline[--len] = 0;
if(thisline[len - 1] == '\r')
thisline[--len] = 0;
dec_size = base64dec(thisline, len, (char *) (keys_ref->tlskeys + i % TLS_TICKETS_NO), sizeof(union tls_sess_key));
if (dec_size < 0) {
memprintf(err, "'%s' : unable to decode base64 key on line %d", args[cur_arg+1], i + 1);
goto fail;
}
else if (!keys_ref->key_size_bits && (dec_size == sizeof(struct tls_sess_key_128))) {
keys_ref->key_size_bits = 128;
}
else if (!keys_ref->key_size_bits && (dec_size == sizeof(struct tls_sess_key_256))) {
keys_ref->key_size_bits = 256;
}
else if (((dec_size != sizeof(struct tls_sess_key_128)) && (dec_size != sizeof(struct tls_sess_key_256)))
|| ((dec_size == sizeof(struct tls_sess_key_128) && (keys_ref->key_size_bits != 128)))
|| ((dec_size == sizeof(struct tls_sess_key_256) && (keys_ref->key_size_bits != 256)))) {
memprintf(err, "'%s' : wrong sized key on line %d", args[cur_arg+1], i + 1);
goto fail;
}
i++;
}
if (i < TLS_TICKETS_NO) {
memprintf(err, "'%s' : please supply at least %d keys in the tls-tickets-file", args[cur_arg+1], TLS_TICKETS_NO);
goto fail;
}
fclose(f);
/* Use penultimate key for encryption, handle when TLS_TICKETS_NO = 1 */
i -= 2;
keys_ref->tls_ticket_enc_index = i < 0 ? 0 : i % TLS_TICKETS_NO;
keys_ref->unique_id = -1;
keys_ref->refcount = 1;
HA_RWLOCK_INIT(&keys_ref->lock);
conf->keys_ref = keys_ref;
LIST_INSERT(&tlskeys_reference, &keys_ref->list);
return 0;
fail:
if (f)
fclose(f);
if (keys_ref) {
free(keys_ref->filename);
free(keys_ref->tlskeys);
free(keys_ref);
}
return ERR_ALERT | ERR_FATAL;
#else
memprintf(err, "'%s' : TLS ticket callback extension not supported", args[cur_arg]);
return ERR_ALERT | ERR_FATAL;
#endif /* SSL_CTRL_SET_TLSEXT_TICKET_KEY_CB */
}
/* parse the "verify" bind keyword */
static int ssl_bind_parse_verify(char **args, int cur_arg, struct proxy *px, struct ssl_bind_conf *conf, int from_cli, char **err)
{
if (!*args[cur_arg + 1]) {
memprintf(err, "'%s' : missing verify method", args[cur_arg]);
return ERR_ALERT | ERR_FATAL;
}
if (strcmp(args[cur_arg + 1], "none") == 0)
conf->verify = SSL_SOCK_VERIFY_NONE;
else if (strcmp(args[cur_arg + 1], "optional") == 0)
conf->verify = SSL_SOCK_VERIFY_OPTIONAL;
else if (strcmp(args[cur_arg + 1], "required") == 0)
conf->verify = SSL_SOCK_VERIFY_REQUIRED;
else {
memprintf(err, "'%s' : unknown verify method '%s', only 'none', 'optional', and 'required' are supported\n",
args[cur_arg], args[cur_arg + 1]);
return ERR_ALERT | ERR_FATAL;
}
return 0;
}
static int bind_parse_verify(char **args, int cur_arg, struct proxy *px, struct bind_conf *conf, char **err)
{
return ssl_bind_parse_verify(args, cur_arg, px, &conf->ssl_conf, 0, err);
}
/* parse the "no-alpn" ssl-bind keyword, storing an empty ALPN string */
static int ssl_bind_parse_no_alpn(char **args, int cur_arg, struct proxy *px, struct ssl_bind_conf *conf, int from_cli, char **err)
{
free(conf->alpn_str);
conf->alpn_len = 0;
conf->alpn_str = strdup("");
if (!conf->alpn_str) {
memprintf(err, "'%s' : out of memory", *args);
return ERR_ALERT | ERR_FATAL;
}
return 0;
}
/* parse the "no-alpn" bind keyword, storing an empty ALPN string */
static int bind_parse_no_alpn(char **args, int cur_arg, struct proxy *px, struct bind_conf *conf, char **err)
{
return ssl_bind_parse_no_alpn(args, cur_arg, px, &conf->ssl_conf, 0, err);
}
/* parse the "no-ca-names" bind keyword */
static int ssl_bind_parse_no_ca_names(char **args, int cur_arg, struct proxy *px, struct ssl_bind_conf *conf, int from_cli, char **err)
{
conf->no_ca_names = 1;
return 0;
}
static int bind_parse_no_ca_names(char **args, int cur_arg, struct proxy *px, struct bind_conf *conf, char **err)
{
return ssl_bind_parse_no_ca_names(args, cur_arg, px, &conf->ssl_conf, 0, err);
}
/***************************** "server" keywords Parsing ********************************************/
/* parse the "npn" bind keyword */
static int srv_parse_npn(char **args, int *cur_arg, struct proxy *px, struct server *newsrv, char **err)
{
#if defined(OPENSSL_NPN_NEGOTIATED) && !defined(OPENSSL_NO_NEXTPROTONEG)
char *p1, *p2;
if (!*args[*cur_arg + 1]) {
memprintf(err, "'%s' : missing the comma-delimited NPN protocol suite", args[*cur_arg]);
return ERR_ALERT | ERR_FATAL;
}
free(newsrv->ssl_ctx.npn_str);
/* the NPN string is built as a suite of (<len> <name>)*,
* so we reuse each comma to store the next <len> and need
* one more for the end of the string.
*/
newsrv->ssl_ctx.npn_len = strlen(args[*cur_arg + 1]) + 1;
newsrv->ssl_ctx.npn_str = calloc(1, newsrv->ssl_ctx.npn_len + 1);
if (!newsrv->ssl_ctx.npn_str) {
memprintf(err, "out of memory");
return ERR_ALERT | ERR_FATAL;
}
memcpy(newsrv->ssl_ctx.npn_str + 1, args[*cur_arg + 1],
newsrv->ssl_ctx.npn_len);
/* replace commas with the name length */
p1 = newsrv->ssl_ctx.npn_str;
p2 = p1 + 1;
while (1) {
p2 = memchr(p1 + 1, ',', newsrv->ssl_ctx.npn_str +
newsrv->ssl_ctx.npn_len - (p1 + 1));
if (!p2)
p2 = p1 + 1 + strlen(p1 + 1);
if (p2 - (p1 + 1) > 255) {
*p2 = '\0';
memprintf(err, "'%s' : NPN protocol name too long : '%s'", args[*cur_arg], p1 + 1);
return ERR_ALERT | ERR_FATAL;
}
*p1 = p2 - (p1 + 1);
p1 = p2;
if (!*p2)
break;
*(p2++) = '\0';
}
return 0;
#else
memprintf(err, "'%s' : library does not support TLS NPN extension", args[*cur_arg]);
return ERR_ALERT | ERR_FATAL;
#endif
}
#ifdef TLSEXT_TYPE_application_layer_protocol_negotiation
static int parse_alpn(char *alpn, char **out_alpn_str, int *out_alpn_len, char **err)
{
free(*out_alpn_str);
return ssl_sock_parse_alpn(alpn, out_alpn_str, out_alpn_len, err);
}
#endif
/* parse the "alpn" server keyword */
static int srv_parse_alpn(char **args, int *cur_arg, struct proxy *px, struct server *newsrv, char **err)
{
#ifdef TLSEXT_TYPE_application_layer_protocol_negotiation
int ret = parse_alpn(args[*cur_arg + 1],
&newsrv->ssl_ctx.alpn_str,
&newsrv->ssl_ctx.alpn_len, err);
if (ret)
memprintf(err, "'%s' : %s", args[*cur_arg], *err);
return ret;
#else
memprintf(err, "'%s' : library does not support TLS ALPN extension", args[*cur_arg]);
return ERR_ALERT | ERR_FATAL;
#endif
}
/* parse the "check-alpn" server keyword */
static int srv_parse_check_alpn(char **args, int *cur_arg, struct proxy *px, struct server *newsrv, char **err)
{
#ifdef TLSEXT_TYPE_application_layer_protocol_negotiation
int ret = parse_alpn(args[*cur_arg + 1],
&newsrv->check.alpn_str,
&newsrv->check.alpn_len, err);
if (ret)
memprintf(err, "'%s' : %s", args[*cur_arg], *err);
return ret;
#else
memprintf(err, "'%s' : library does not support TLS ALPN extension", args[*cur_arg]);
return ERR_ALERT | ERR_FATAL;
#endif
}
/* parse the "ca-file" server keyword */
static int srv_parse_ca_file(char **args, int *cur_arg, struct proxy *px, struct server *newsrv, char **err)
{
const int create_if_none = newsrv->flags & SRV_F_DYNAMIC ? 0 : 1;
if (!*args[*cur_arg + 1]) {
memprintf(err, "'%s' : missing CAfile path", args[*cur_arg]);
return ERR_ALERT | ERR_FATAL;
}
if ((*args[*cur_arg + 1] != '/') && (*args[*cur_arg + 1] != '@') && global_ssl.ca_base)
memprintf(&newsrv->ssl_ctx.ca_file, "%s/%s", global_ssl.ca_base, args[*cur_arg + 1]);
else
memprintf(&newsrv->ssl_ctx.ca_file, "%s", args[*cur_arg + 1]);
if (!ssl_store_load_locations_file(newsrv->ssl_ctx.ca_file, create_if_none, CAFILE_CERT)) {
memprintf(err, "'%s' : unable to load %s", args[*cur_arg], newsrv->ssl_ctx.ca_file);
return ERR_ALERT | ERR_FATAL;
}
return 0;
}
/* parse the "check-sni" server keyword */
static int srv_parse_check_sni(char **args, int *cur_arg, struct proxy *px, struct server *newsrv, char **err)
{
if (!*args[*cur_arg + 1]) {
memprintf(err, "'%s' : missing SNI", args[*cur_arg]);
return ERR_ALERT | ERR_FATAL;
}
newsrv->check.sni = strdup(args[*cur_arg + 1]);
if (!newsrv->check.sni) {
memprintf(err, "'%s' : failed to allocate memory", args[*cur_arg]);
return ERR_ALERT | ERR_FATAL;
}
return 0;
}
/* common function to init ssl_ctx */
static int ssl_sock_init_srv(struct server *s)
{
if (global_ssl.connect_default_ciphers && !s->ssl_ctx.ciphers)
s->ssl_ctx.ciphers = strdup(global_ssl.connect_default_ciphers);
#ifdef HAVE_SSL_CTX_SET_CIPHERSUITES
if (global_ssl.connect_default_ciphersuites && !s->ssl_ctx.ciphersuites) {
s->ssl_ctx.ciphersuites = strdup(global_ssl.connect_default_ciphersuites);
if (!s->ssl_ctx.ciphersuites)
return 1;
}
#endif
s->ssl_ctx.options |= global_ssl.connect_default_ssloptions;
s->ssl_ctx.methods.flags |= global_ssl.connect_default_sslmethods.flags;
if (!s->ssl_ctx.methods.min)
s->ssl_ctx.methods.min = global_ssl.connect_default_sslmethods.min;
if (!s->ssl_ctx.methods.max)
s->ssl_ctx.methods.max = global_ssl.connect_default_sslmethods.max;
#if defined(SSL_CTX_set1_sigalgs_list)
if (global_ssl.connect_default_sigalgs && !s->ssl_ctx.sigalgs) {
s->ssl_ctx.sigalgs = strdup(global_ssl.connect_default_sigalgs);
if (!s->ssl_ctx.sigalgs)
return 1;
}
#endif
#if defined(SSL_CTX_set1_client_sigalgs_list)
if (global_ssl.connect_default_client_sigalgs && !s->ssl_ctx.client_sigalgs) {
s->ssl_ctx.client_sigalgs = strdup(global_ssl.connect_default_client_sigalgs);
if (!s->ssl_ctx.client_sigalgs)
return 1;
}
#endif
#if defined(SSL_CTX_set1_curves_list)
if (global_ssl.connect_default_curves && !s->ssl_ctx.curves) {
s->ssl_ctx.curves = strdup(global_ssl.connect_default_curves);
if (!s->ssl_ctx.curves)
return 1;
}
#endif
return 0;
}
/* parse the "check-ssl" server keyword */
static int srv_parse_check_ssl(char **args, int *cur_arg, struct proxy *px, struct server *newsrv, char **err)
{
newsrv->check.use_ssl = 1;
if (ssl_sock_init_srv(newsrv)) {
memprintf(err, "'%s' : not enough memory", args[*cur_arg]);
return ERR_ALERT | ERR_FATAL;
}
return 0;
}
/* parse the "ciphers" server keyword */
static int srv_parse_ciphers(char **args, int *cur_arg, struct proxy *px, struct server *newsrv, char **err)
{
if (!*args[*cur_arg + 1]) {
memprintf(err, "'%s' : missing cipher suite", args[*cur_arg]);
return ERR_ALERT | ERR_FATAL;
}
free(newsrv->ssl_ctx.ciphers);
newsrv->ssl_ctx.ciphers = strdup(args[*cur_arg + 1]);
if (!newsrv->ssl_ctx.ciphers) {
memprintf(err, "'%s' : not enough memory", args[*cur_arg]);
return ERR_ALERT | ERR_FATAL;
}
return 0;
}
/* parse the "ciphersuites" server keyword */
static int srv_parse_ciphersuites(char **args, int *cur_arg, struct proxy *px, struct server *newsrv, char **err)
{
#ifdef HAVE_SSL_CTX_SET_CIPHERSUITES
if (!*args[*cur_arg + 1]) {
memprintf(err, "'%s' : missing cipher suite", args[*cur_arg]);
return ERR_ALERT | ERR_FATAL;
}
free(newsrv->ssl_ctx.ciphersuites);
newsrv->ssl_ctx.ciphersuites = strdup(args[*cur_arg + 1]);
if (!newsrv->ssl_ctx.ciphersuites) {
memprintf(err, "'%s' : not enough memory", args[*cur_arg]);
return ERR_ALERT | ERR_FATAL;
}
return 0;
#else /* ! HAVE_SSL_CTX_SET_CIPHERSUITES */
memprintf(err, "'%s' not supported for your SSL library (%s).", args[*cur_arg], OPENSSL_VERSION_TEXT);
return ERR_ALERT | ERR_FATAL;
#endif
}
/* parse the "client-sigalgs" server keyword */
static int srv_parse_client_sigalgs(char **args, int *cur_arg, struct proxy *px, struct server *newsrv, char **err)
{
#ifndef SSL_CTX_set1_client_sigalgs_list
memprintf(err, "'%s' : library does not support setting signature algorithms", args[*cur_arg]);
return ERR_ALERT | ERR_FATAL;
#else
char *arg;
arg = args[*cur_arg + 1];
if (!*arg) {
memprintf(err, "'%s' : missing signature algorithm list", args[*cur_arg]);
return ERR_ALERT | ERR_FATAL;
}
newsrv->ssl_ctx.client_sigalgs = strdup(arg);
if (!newsrv->ssl_ctx.client_sigalgs) {
memprintf(err, "out of memory");
return ERR_ALERT | ERR_FATAL;
}
return 0;
#endif
}
/* parse the "crl-file" server keyword */
static int srv_parse_crl_file(char **args, int *cur_arg, struct proxy *px, struct server *newsrv, char **err)
{
#ifndef X509_V_FLAG_CRL_CHECK
memprintf(err, "'%s' : library does not support CRL verify", args[*cur_arg]);
return ERR_ALERT | ERR_FATAL;
#else
const int create_if_none = newsrv->flags & SRV_F_DYNAMIC ? 0 : 1;
if (!*args[*cur_arg + 1]) {
memprintf(err, "'%s' : missing CRLfile path", args[*cur_arg]);
return ERR_ALERT | ERR_FATAL;
}
if ((*args[*cur_arg + 1] != '/') && (*args[*cur_arg + 1] != '@') && global_ssl.ca_base)
memprintf(&newsrv->ssl_ctx.crl_file, "%s/%s", global_ssl.ca_base, args[*cur_arg + 1]);
else
memprintf(&newsrv->ssl_ctx.crl_file, "%s", args[*cur_arg + 1]);
if (!ssl_store_load_locations_file(newsrv->ssl_ctx.crl_file, create_if_none, CAFILE_CRL)) {
memprintf(err, "'%s' : unable to load %s", args[*cur_arg], newsrv->ssl_ctx.crl_file);
return ERR_ALERT | ERR_FATAL;
}
return 0;
#endif
}
/* parse the "curves" server keyword */
static int srv_parse_curves(char **args, int *cur_arg, struct proxy *px, struct server *newsrv, char **err)
{
#ifndef SSL_CTX_set1_curves_list
memprintf(err, "'%s' : library does not support setting curves list", args[*cur_arg]);
return ERR_ALERT | ERR_FATAL;
#else
char *arg;
arg = args[*cur_arg + 1];
if (!*arg) {
memprintf(err, "'%s' : missing curves list", args[*cur_arg]);
return ERR_ALERT | ERR_FATAL;
}
newsrv->ssl_ctx.curves = strdup(arg);
if (!newsrv->ssl_ctx.curves) {
memprintf(err, "out of memory");
return ERR_ALERT | ERR_FATAL;
}
return 0;
#endif
}
/* parse the "crt" server keyword */
static int srv_parse_crt(char **args, int *cur_arg, struct proxy *px, struct server *newsrv, char **err)
{
if (!*args[*cur_arg + 1]) {
memprintf(err, "'%s' : missing certificate file path", args[*cur_arg]);
return ERR_ALERT | ERR_FATAL;
}
if ((*args[*cur_arg + 1] != '@') && (*args[*cur_arg + 1] != '/') && global_ssl.crt_base)
memprintf(&newsrv->ssl_ctx.client_crt, "%s/%s", global_ssl.crt_base, args[*cur_arg + 1]);
else
memprintf(&newsrv->ssl_ctx.client_crt, "%s", args[*cur_arg + 1]);
return 0;
}
/* parse the "no-check-ssl" server keyword */
static int srv_parse_no_check_ssl(char **args, int *cur_arg, struct proxy *px, struct server *newsrv, char **err)
{
newsrv->check.use_ssl = -1;
ha_free(&newsrv->ssl_ctx.ciphers);
newsrv->ssl_ctx.options &= ~global_ssl.connect_default_ssloptions;
return 0;
}
/* parse the "no-send-proxy-v2-ssl" server keyword */
static int srv_parse_no_send_proxy_ssl(char **args, int *cur_arg, struct proxy *px, struct server *newsrv, char **err)
{
newsrv->pp_opts &= ~SRV_PP_V2;
newsrv->pp_opts &= ~SRV_PP_V2_SSL;
return 0;
}
/* parse the "no-send-proxy-v2-ssl-cn" server keyword */
static int srv_parse_no_send_proxy_cn(char **args, int *cur_arg, struct proxy *px, struct server *newsrv, char **err)
{
newsrv->pp_opts &= ~SRV_PP_V2;
newsrv->pp_opts &= ~SRV_PP_V2_SSL;
newsrv->pp_opts &= ~SRV_PP_V2_SSL_CN;
return 0;
}
/* parse the "no-ssl" server keyword */
static int srv_parse_no_ssl(char **args, int *cur_arg, struct proxy *px, struct server *newsrv, char **err)
{
/* if default-server have use_ssl, prepare ssl settings */
if (newsrv->use_ssl == 1) {
if (ssl_sock_init_srv(newsrv)) {
memprintf(err, "'%s' : not enough memory", args[*cur_arg]);
return ERR_ALERT | ERR_FATAL;
}
}
else {
ha_free(&newsrv->ssl_ctx.ciphers);
}
newsrv->use_ssl = -1;
return 0;
}
/* parse the "allow-0rtt" server keyword */
static int srv_parse_allow_0rtt(char **args, int *cur_arg, struct proxy *px, struct server *newsrv, char **err)
{
newsrv->ssl_ctx.options |= SRV_SSL_O_EARLY_DATA;
return 0;
}
/* parse the "no-ssl-reuse" server keyword */
static int srv_parse_no_ssl_reuse(char **args, int *cur_arg, struct proxy *px, struct server *newsrv, char **err)
{
newsrv->ssl_ctx.options |= SRV_SSL_O_NO_REUSE;
return 0;
}
/* parse the "no-tls-tickets" server keyword */
static int srv_parse_no_tls_tickets(char **args, int *cur_arg, struct proxy *px, struct server *newsrv, char **err)
{
newsrv->ssl_ctx.options |= SRV_SSL_O_NO_TLS_TICKETS;
return 0;
}
/* parse the "send-proxy-v2-ssl" server keyword */
static int srv_parse_send_proxy_ssl(char **args, int *cur_arg, struct proxy *px, struct server *newsrv, char **err)
{
newsrv->pp_opts |= SRV_PP_V2;
newsrv->pp_opts |= SRV_PP_V2_SSL;
return 0;
}
/* parse the "send-proxy-v2-ssl-cn" server keyword */
static int srv_parse_send_proxy_cn(char **args, int *cur_arg, struct proxy *px, struct server *newsrv, char **err)
{
newsrv->pp_opts |= SRV_PP_V2;
newsrv->pp_opts |= SRV_PP_V2_SSL;
newsrv->pp_opts |= SRV_PP_V2_SSL_CN;
return 0;
}
/* parse the "sigalgs" server keyword */
static int srv_parse_sigalgs(char **args, int *cur_arg, struct proxy *px, struct server *newsrv, char **err)
{
#ifndef SSL_CTX_set1_sigalgs_list
memprintf(err, "'%s' : library does not support setting signature algorithms", args[*cur_arg]);
return ERR_ALERT | ERR_FATAL;
#else
char *arg;
arg = args[*cur_arg + 1];
if (!*arg) {
memprintf(err, "'%s' : missing signature algorithm list", args[*cur_arg]);
return ERR_ALERT | ERR_FATAL;
}
newsrv->ssl_ctx.sigalgs = strdup(arg);
if (!newsrv->ssl_ctx.sigalgs) {
memprintf(err, "out of memory");
return ERR_ALERT | ERR_FATAL;
}
return 0;
#endif
}
/* parse the "sni" server keyword */
static int srv_parse_sni(char **args, int *cur_arg, struct proxy *px, struct server *newsrv, char **err)
{
#ifndef SSL_CTRL_SET_TLSEXT_HOSTNAME
memprintf(err, "'%s' : the current SSL library doesn't support the SNI TLS extension", args[*cur_arg]);
return ERR_ALERT | ERR_FATAL;
#else
char *arg;
arg = args[*cur_arg + 1];
if (!*arg) {
memprintf(err, "'%s' : missing sni expression", args[*cur_arg]);
return ERR_ALERT | ERR_FATAL;
}
free(newsrv->sni_expr);
newsrv->sni_expr = strdup(arg);
if (!newsrv->sni_expr) {
memprintf(err, "out of memory");
return ERR_ALERT | ERR_FATAL;
}
return 0;
#endif
}
/* parse the "ssl" server keyword */
static int srv_parse_ssl(char **args, int *cur_arg, struct proxy *px, struct server *newsrv, char **err)
{
newsrv->use_ssl = 1;
if (ssl_sock_init_srv(newsrv)) {
memprintf(err, "'%s' : not enough memory", args[*cur_arg]);
return ERR_ALERT | ERR_FATAL;
}
return 0;
}
/* parse the "ssl-reuse" server keyword */
static int srv_parse_ssl_reuse(char **args, int *cur_arg, struct proxy *px, struct server *newsrv, char **err)
{
newsrv->ssl_ctx.options &= ~SRV_SSL_O_NO_REUSE;
return 0;
}
/* parse the "tls-tickets" server keyword */
static int srv_parse_tls_tickets(char **args, int *cur_arg, struct proxy *px, struct server *newsrv, char **err)
{
newsrv->ssl_ctx.options &= ~SRV_SSL_O_NO_TLS_TICKETS;
return 0;
}
/* parse the "verify" server keyword */
static int srv_parse_verify(char **args, int *cur_arg, struct proxy *px, struct server *newsrv, char **err)
{
if (!*args[*cur_arg + 1]) {
memprintf(err, "'%s' : missing verify method", args[*cur_arg]);
return ERR_ALERT | ERR_FATAL;
}
if (strcmp(args[*cur_arg + 1], "none") == 0)
newsrv->ssl_ctx.verify = SSL_SOCK_VERIFY_NONE;
else if (strcmp(args[*cur_arg + 1], "required") == 0)
newsrv->ssl_ctx.verify = SSL_SOCK_VERIFY_REQUIRED;
else {
memprintf(err, "'%s' : unknown verify method '%s', only 'none' and 'required' are supported\n",
args[*cur_arg], args[*cur_arg + 1]);
return ERR_ALERT | ERR_FATAL;
}
return 0;
}
/* parse the "verifyhost" server keyword */
static int srv_parse_verifyhost(char **args, int *cur_arg, struct proxy *px, struct server *newsrv, char **err)
{
if (!*args[*cur_arg + 1]) {
memprintf(err, "'%s' : missing hostname to verify against", args[*cur_arg]);
return ERR_ALERT | ERR_FATAL;
}
free(newsrv->ssl_ctx.verify_host);
newsrv->ssl_ctx.verify_host = strdup(args[*cur_arg + 1]);
if (!newsrv->ssl_ctx.verify_host) {
memprintf(err, "'%s' : not enough memory", args[*cur_arg]);
return ERR_ALERT | ERR_FATAL;
}
return 0;
}
/* parse the "ssl-default-bind-options" keyword in global section */
static int ssl_parse_default_bind_options(char **args, int section_type, struct proxy *curpx,
const struct proxy *defpx, const char *file, int line,
char **err) {
int i = 1;
if (*(args[i]) == 0) {
memprintf(err, "global statement '%s' expects an option as an argument.", args[0]);
return -1;
}
while (*(args[i])) {
if (strcmp(args[i], "no-tls-tickets") == 0)
global_ssl.listen_default_ssloptions |= BC_SSL_O_NO_TLS_TICKETS;
else if (strcmp(args[i], "prefer-client-ciphers") == 0)
global_ssl.listen_default_ssloptions |= BC_SSL_O_PREF_CLIE_CIPH;
else if (strcmp(args[i], "ssl-min-ver") == 0 || strcmp(args[i], "ssl-max-ver") == 0) {
if (!parse_tls_method_minmax(args, i, &global_ssl.listen_default_sslmethods, err))
i++;
else {
memprintf(err, "%s on global statement '%s'.", *err, args[0]);
return -1;
}
}
else if (parse_tls_method_options(args[i], &global_ssl.listen_default_sslmethods, err)) {
memprintf(err, "unknown option '%s' on global statement '%s'.", args[i], args[0]);
return -1;
}
i++;
}
return 0;
}
/* parse the "ssl-default-server-options" keyword in global section */
static int ssl_parse_default_server_options(char **args, int section_type, struct proxy *curpx,
const struct proxy *defpx, const char *file, int line,
char **err) {
int i = 1;
if (*(args[i]) == 0) {
memprintf(err, "global statement '%s' expects an option as an argument.", args[0]);
return -1;
}
while (*(args[i])) {
if (strcmp(args[i], "no-tls-tickets") == 0)
global_ssl.connect_default_ssloptions |= SRV_SSL_O_NO_TLS_TICKETS;
else if (strcmp(args[i], "ssl-min-ver") == 0 || strcmp(args[i], "ssl-max-ver") == 0) {
if (!parse_tls_method_minmax(args, i, &global_ssl.connect_default_sslmethods, err))
i++;
else {
memprintf(err, "%s on global statement '%s'.", *err, args[0]);
return -1;
}
}
else if (parse_tls_method_options(args[i], &global_ssl.connect_default_sslmethods, err)) {
memprintf(err, "unknown option '%s' on global statement '%s'.", args[i], args[0]);
return -1;
}
i++;
}
return 0;
}
/* parse the "ca-base" / "crt-base" / "key-base" keywords in global section.
* Returns <0 on alert, >0 on warning, 0 on success.
*/
static int ssl_parse_global_path_base(char **args, int section_type, struct proxy *curpx,
const struct proxy *defpx, const char *file, int line,
char **err)
{
char **target;
if (args[0][1] == 'a')
target = &global_ssl.ca_base;
else if (args[0][1] == 'r')
target = &global_ssl.crt_base;
else if (args[0][1] == 'e')
target = &global_ssl.key_base;
else
return -1;
if (too_many_args(1, args, err, NULL))
return -1;
if (*target) {
memprintf(err, "'%s' already specified.", args[0]);
return -1;
}
if (*(args[1]) == 0) {
memprintf(err, "global statement '%s' expects a directory path as an argument.", args[0]);
return -1;
}
*target = strdup(args[1]);
return 0;
}
/* parse the "ssl-security-level" keyword in global section. */
static int ssl_parse_security_level(char **args, int section_type, struct proxy *curpx,
const struct proxy *defpx, const char *file, int linenum,
char **err)
{
#ifndef HAVE_SSL_SET_SECURITY_LEVEL
memprintf(err, "global statement '%s' requires at least OpenSSL 1.1.1.", args[0]);
return -1;
#else
char *endptr;
if (!*args[1]) {
ha_alert("parsing [%s:%d] : '%s' : missing value\n", file, linenum, args[0]);
return -1;
}
global_ssl.security_level = strtol(args[1], &endptr, 10);
if (*endptr != '\0') {
ha_alert("parsing [%s:%d] : '%s' : expects an integer argument, found '%s'\n",
file, linenum, args[0], args[1]);
return -1;
}
if (global_ssl.security_level < 0 || global_ssl.security_level > 5) {
ha_alert("parsing [%s:%d] : '%s' : expects a value between 0 and 5\n",
file, linenum, args[0]);
return -1;
}
#endif
return 0;
}
/* parse the "ssl-skip-self-issued-ca" keyword in global section. */
static int ssl_parse_skip_self_issued_ca(char **args, int section_type, struct proxy *curpx,
const struct proxy *defpx, const char *file, int line,
char **err)
{
#ifdef SSL_CTX_build_cert_chain
global_ssl.skip_self_issued_ca = 1;
return 0;
#else
memprintf(err, "global statement '%s' requires at least OpenSSL 1.0.2.", args[0]);
return -1;
#endif
}
/* Note: must not be declared <const> as its list will be overwritten.
* Please take care of keeping this list alphabetically sorted, doing so helps
* all code contributors.
* Optional keywords are also declared with a NULL ->parse() function so that
* the config parser can report an appropriate error when a known keyword was
* not enabled.
*/
/* the <ssl_crtlist_kws> keywords are used for crt-list parsing, they *MUST* be safe
* with their proxy argument NULL and must only fill the ssl_bind_conf
*
* /!\ Please update configuration.txt at the crt-list option of the Bind options
* section when adding a keyword in ssl_crtlist_kws. /!\
*
*/
struct ssl_crtlist_kw ssl_crtlist_kws[] = {
{ "allow-0rtt", ssl_bind_parse_allow_0rtt, 0 }, /* allow 0-RTT */
{ "alpn", ssl_bind_parse_alpn, 1 }, /* set ALPN supported protocols */
{ "ca-file", ssl_bind_parse_ca_file, 1 }, /* set CAfile to process ca-names and verify on client cert */
{ "ca-verify-file", ssl_bind_parse_ca_verify_file, 1 }, /* set CAverify file to process verify on client cert */
{ "ciphers", ssl_bind_parse_ciphers, 1 }, /* set SSL cipher suite */
{ "ciphersuites", ssl_bind_parse_ciphersuites, 1 }, /* set TLS 1.3 cipher suite */
{ "client-sigalgs", ssl_bind_parse_client_sigalgs, 1 }, /* set SSL client signature algorithms */
{ "crl-file", ssl_bind_parse_crl_file, 1 }, /* set certificate revocation list file use on client cert verify */
{ "curves", ssl_bind_parse_curves, 1 }, /* set SSL curve suite */
{ "ecdhe", ssl_bind_parse_ecdhe, 1 }, /* defines named curve for elliptic curve Diffie-Hellman */
{ "no-alpn", ssl_bind_parse_no_alpn, 0 }, /* disable sending ALPN */
{ "no-ca-names", ssl_bind_parse_no_ca_names, 0 }, /* do not send ca names to clients (ca_file related) */
{ "npn", ssl_bind_parse_npn, 1 }, /* set NPN supported protocols */
{ "sigalgs", ssl_bind_parse_sigalgs, 1 }, /* set SSL signature algorithms */
{ "ssl-min-ver", ssl_bind_parse_tls_method_minmax,1 }, /* minimum version */
{ "ssl-max-ver", ssl_bind_parse_tls_method_minmax,1 }, /* maximum version */
{ "verify", ssl_bind_parse_verify, 1 }, /* set SSL verify method */
{ NULL, NULL, 0 },
};
/* no initcall for ssl_bind_kws, these ones are parsed in the parser loop */
static struct bind_kw_list bind_kws = { "SSL", { }, {
{ "allow-0rtt", bind_parse_allow_0rtt, 0 }, /* Allow 0RTT */
{ "alpn", bind_parse_alpn, 1 }, /* set ALPN supported protocols */
{ "ca-file", bind_parse_ca_file, 1 }, /* set CAfile to process ca-names and verify on client cert */
{ "ca-verify-file", bind_parse_ca_verify_file, 1 }, /* set CAverify file to process verify on client cert */
{ "ca-ignore-err", bind_parse_ignore_err, 1 }, /* set error IDs to ignore on verify depth > 0 */
{ "ca-sign-file", bind_parse_ca_sign_file, 1 }, /* set CAFile used to generate and sign server certs */
{ "ca-sign-pass", bind_parse_ca_sign_pass, 1 }, /* set CAKey passphrase */
{ "ciphers", bind_parse_ciphers, 1 }, /* set SSL cipher suite */
{ "ciphersuites", bind_parse_ciphersuites, 1 }, /* set TLS 1.3 cipher suite */
{ "client-sigalgs", bind_parse_client_sigalgs, 1 }, /* set SSL client signature algorithms */
{ "crl-file", bind_parse_crl_file, 1 }, /* set certificate revocation list file use on client cert verify */
{ "crt", bind_parse_crt, 1 }, /* load SSL certificates from this location */
{ "crt-ignore-err", bind_parse_ignore_err, 1 }, /* set error IDs to ignore on verify depth == 0 */
{ "crt-list", bind_parse_crt_list, 1 }, /* load a list of crt from this location */
{ "curves", bind_parse_curves, 1 }, /* set SSL curve suite */
{ "default-crt", bind_parse_crt, 1 }, /* load SSL certificates from this location */
{ "ecdhe", bind_parse_ecdhe, 1 }, /* defines named curve for elliptic curve Diffie-Hellman */
{ "force-sslv3", bind_parse_tls_method_options, 0 }, /* force SSLv3 */
{ "force-tlsv10", bind_parse_tls_method_options, 0 }, /* force TLSv10 */
{ "force-tlsv11", bind_parse_tls_method_options, 0 }, /* force TLSv11 */
{ "force-tlsv12", bind_parse_tls_method_options, 0 }, /* force TLSv12 */
{ "force-tlsv13", bind_parse_tls_method_options, 0 }, /* force TLSv13 */
{ "generate-certificates", bind_parse_generate_certs, 0 }, /* enable the server certificates generation */
{ "no-alpn", bind_parse_no_alpn, 0 }, /* disable sending ALPN */
{ "no-ca-names", bind_parse_no_ca_names, 0 }, /* do not send ca names to clients (ca_file related) */
{ "no-sslv3", bind_parse_tls_method_options, 0 }, /* disable SSLv3 */
{ "no-tlsv10", bind_parse_tls_method_options, 0 }, /* disable TLSv10 */
{ "no-tlsv11", bind_parse_tls_method_options, 0 }, /* disable TLSv11 */
{ "no-tlsv12", bind_parse_tls_method_options, 0 }, /* disable TLSv12 */
{ "no-tlsv13", bind_parse_tls_method_options, 0 }, /* disable TLSv13 */
{ "no-tls-tickets", bind_parse_no_tls_tickets, 0 }, /* disable session resumption tickets */
{ "sigalgs", bind_parse_sigalgs, 1 }, /* set SSL signature algorithms */
{ "ssl", bind_parse_ssl, 0 }, /* enable SSL processing */
{ "ssl-min-ver", bind_parse_tls_method_minmax, 1 }, /* minimum version */
{ "ssl-max-ver", bind_parse_tls_method_minmax, 1 }, /* maximum version */
{ "strict-sni", bind_parse_strict_sni, 0 }, /* refuse negotiation if sni doesn't match a certificate */
{ "tls-ticket-keys", bind_parse_tls_ticket_keys, 1 }, /* set file to load TLS ticket keys from */
{ "verify", bind_parse_verify, 1 }, /* set SSL verify method */
{ "npn", bind_parse_npn, 1 }, /* set NPN supported protocols */
{ "prefer-client-ciphers", bind_parse_pcc, 0 }, /* prefer client ciphers */
{ NULL, NULL, 0 },
}};
INITCALL1(STG_REGISTER, bind_register_keywords, &bind_kws);
/* Note: must not be declared <const> as its list will be overwritten.
* Please take care of keeping this list alphabetically sorted, doing so helps
* all code contributors.
* Optional keywords are also declared with a NULL ->parse() function so that
* the config parser can report an appropriate error when a known keyword was
* not enabled.
*/
static struct srv_kw_list srv_kws = { "SSL", { }, {
{ "allow-0rtt", srv_parse_allow_0rtt, 0, 1, 1 }, /* Allow using early data on this server */
{ "alpn", srv_parse_alpn, 1, 1, 1 }, /* Set ALPN supported protocols */
{ "ca-file", srv_parse_ca_file, 1, 1, 1 }, /* set CAfile to process verify server cert */
{ "check-alpn", srv_parse_check_alpn, 1, 1, 1 }, /* Set ALPN used for checks */
{ "check-sni", srv_parse_check_sni, 1, 1, 1 }, /* set SNI */
{ "check-ssl", srv_parse_check_ssl, 0, 1, 1 }, /* enable SSL for health checks */
{ "ciphers", srv_parse_ciphers, 1, 1, 1 }, /* select the cipher suite */
{ "ciphersuites", srv_parse_ciphersuites, 1, 1, 1 }, /* select the cipher suite */
{ "client-sigalgs", srv_parse_client_sigalgs, 1, 1, 1 }, /* signature algorithms */
{ "crl-file", srv_parse_crl_file, 1, 1, 1 }, /* set certificate revocation list file use on server cert verify */
{ "curves", srv_parse_curves, 1, 1, 1 }, /* set TLS curves list */
{ "crt", srv_parse_crt, 1, 1, 1 }, /* set client certificate */
{ "force-sslv3", srv_parse_tls_method_options, 0, 1, 1 }, /* force SSLv3 */
{ "force-tlsv10", srv_parse_tls_method_options, 0, 1, 1 }, /* force TLSv10 */
{ "force-tlsv11", srv_parse_tls_method_options, 0, 1, 1 }, /* force TLSv11 */
{ "force-tlsv12", srv_parse_tls_method_options, 0, 1, 1 }, /* force TLSv12 */
{ "force-tlsv13", srv_parse_tls_method_options, 0, 1, 1 }, /* force TLSv13 */
{ "no-check-ssl", srv_parse_no_check_ssl, 0, 1, 0 }, /* disable SSL for health checks */
{ "no-send-proxy-v2-ssl", srv_parse_no_send_proxy_ssl, 0, 1, 0 }, /* do not send PROXY protocol header v2 with SSL info */
{ "no-send-proxy-v2-ssl-cn", srv_parse_no_send_proxy_cn, 0, 1, 0 }, /* do not send PROXY protocol header v2 with CN */
{ "no-ssl", srv_parse_no_ssl, 0, 1, 0 }, /* disable SSL processing */
{ "no-ssl-reuse", srv_parse_no_ssl_reuse, 0, 1, 1 }, /* disable session reuse */
{ "no-sslv3", srv_parse_tls_method_options, 0, 0, 1 }, /* disable SSLv3 */
{ "no-tlsv10", srv_parse_tls_method_options, 0, 0, 1 }, /* disable TLSv10 */
{ "no-tlsv11", srv_parse_tls_method_options, 0, 0, 1 }, /* disable TLSv11 */
{ "no-tlsv12", srv_parse_tls_method_options, 0, 0, 1 }, /* disable TLSv12 */
{ "no-tlsv13", srv_parse_tls_method_options, 0, 0, 1 }, /* disable TLSv13 */
{ "no-tls-tickets", srv_parse_no_tls_tickets, 0, 1, 1 }, /* disable session resumption tickets */
{ "npn", srv_parse_npn, 1, 1, 1 }, /* Set NPN supported protocols */
{ "send-proxy-v2-ssl", srv_parse_send_proxy_ssl, 0, 1, 1 }, /* send PROXY protocol header v2 with SSL info */
{ "send-proxy-v2-ssl-cn", srv_parse_send_proxy_cn, 0, 1, 1 }, /* send PROXY protocol header v2 with CN */
{ "sigalgs", srv_parse_sigalgs, 1, 1, 1 }, /* signature algorithms */
{ "sni", srv_parse_sni, 1, 1, 1 }, /* send SNI extension */
{ "ssl", srv_parse_ssl, 0, 1, 1 }, /* enable SSL processing */
{ "ssl-min-ver", srv_parse_tls_method_minmax, 1, 1, 1 }, /* minimum version */
{ "ssl-max-ver", srv_parse_tls_method_minmax, 1, 1, 1 }, /* maximum version */
{ "ssl-reuse", srv_parse_ssl_reuse, 0, 1, 0 }, /* enable session reuse */
{ "tls-tickets", srv_parse_tls_tickets, 0, 1, 1 }, /* enable session resumption tickets */
{ "verify", srv_parse_verify, 1, 1, 1 }, /* set SSL verify method */
{ "verifyhost", srv_parse_verifyhost, 1, 1, 1 }, /* require that SSL cert verifies for hostname */
{ NULL, NULL, 0, 0 },
}};
INITCALL1(STG_REGISTER, srv_register_keywords, &srv_kws);
static struct cfg_kw_list cfg_kws = {ILH, {
{ CFG_GLOBAL, "ca-base", ssl_parse_global_path_base },
{ CFG_GLOBAL, "crt-base", ssl_parse_global_path_base },
{ CFG_GLOBAL, "key-base", ssl_parse_global_path_base },
{ CFG_GLOBAL, "issuers-chain-path", ssl_load_global_issuers_from_path },
{ CFG_GLOBAL, "maxsslconn", ssl_parse_global_int },
{ CFG_GLOBAL, "ssl-default-bind-options", ssl_parse_default_bind_options },
{ CFG_GLOBAL, "ssl-default-server-options", ssl_parse_default_server_options },
#ifndef OPENSSL_NO_DH
{ CFG_GLOBAL, "ssl-dh-param-file", ssl_parse_global_dh_param_file },
#endif
{ CFG_GLOBAL, "ssl-mode-async", ssl_parse_global_ssl_async },
#if defined(USE_ENGINE) && !defined(OPENSSL_NO_ENGINE)
{ CFG_GLOBAL, "ssl-engine", ssl_parse_global_ssl_engine },
#endif
#ifdef HAVE_SSL_PROVIDERS
{ CFG_GLOBAL, "ssl-propquery", ssl_parse_global_ssl_propquery },
{ CFG_GLOBAL, "ssl-provider", ssl_parse_global_ssl_provider },
{ CFG_GLOBAL, "ssl-provider-path", ssl_parse_global_ssl_provider_path },
#endif
{ CFG_GLOBAL, "ssl-security-level", ssl_parse_security_level },
{ CFG_GLOBAL, "ssl-skip-self-issued-ca", ssl_parse_skip_self_issued_ca },
{ CFG_GLOBAL, "tune.ssl.cachesize", ssl_parse_global_int },
{ CFG_GLOBAL, "tune.ssl.default-dh-param", ssl_parse_global_default_dh },
{ CFG_GLOBAL, "tune.ssl.force-private-cache", ssl_parse_global_private_cache },
{ CFG_GLOBAL, "tune.ssl.lifetime", ssl_parse_global_lifetime },
{ CFG_GLOBAL, "tune.ssl.maxrecord", ssl_parse_global_int },
{ CFG_GLOBAL, "tune.ssl.hard-maxrecord", ssl_parse_global_int },
{ CFG_GLOBAL, "tune.ssl.ssl-ctx-cache-size", ssl_parse_global_int },
{ CFG_GLOBAL, "tune.ssl.capture-cipherlist-size", ssl_parse_global_capture_buffer },
{ CFG_GLOBAL, "tune.ssl.capture-buffer-size", ssl_parse_global_capture_buffer },
{ CFG_GLOBAL, "tune.ssl.keylog", ssl_parse_global_keylog },
{ CFG_GLOBAL, "ssl-default-bind-ciphers", ssl_parse_global_ciphers },
{ CFG_GLOBAL, "ssl-default-server-ciphers", ssl_parse_global_ciphers },
#if defined(SSL_CTX_set1_curves_list)
{ CFG_GLOBAL, "ssl-default-bind-curves", ssl_parse_global_curves },
{ CFG_GLOBAL, "ssl-default-server-curves", ssl_parse_global_curves },
#endif
#if defined(SSL_CTX_set1_sigalgs_list)
{ CFG_GLOBAL, "ssl-default-bind-sigalgs", ssl_parse_global_sigalgs },
{ CFG_GLOBAL, "ssl-default-server-sigalgs", ssl_parse_global_sigalgs },
#endif
#if defined(SSL_CTX_set1_client_sigalgs_list)
{ CFG_GLOBAL, "ssl-default-bind-client-sigalgs", ssl_parse_global_client_sigalgs },
{ CFG_GLOBAL, "ssl-default-server-client-sigalgs", ssl_parse_global_client_sigalgs },
#endif
{ CFG_GLOBAL, "ssl-default-bind-ciphersuites", ssl_parse_global_ciphersuites },
{ CFG_GLOBAL, "ssl-default-server-ciphersuites", ssl_parse_global_ciphersuites },
{ CFG_GLOBAL, "ssl-load-extra-files", ssl_parse_global_extra_files },
{ CFG_GLOBAL, "ssl-load-extra-del-ext", ssl_parse_global_extra_noext },
{ 0, NULL, NULL },
}};
INITCALL1(STG_REGISTER, cfg_register_keywords, &cfg_kws);
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