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Stream: client certificate validation with OCSP.

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This commit is contained in:
Sergey Kandaurov 2024-08-22 14:57:45 +04:00
parent 48ac1ee9c6
commit 581cf22673
2 changed files with 159 additions and 0 deletions
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155
src/stream/ngx_stream_ssl_module.c
View File

@ -51,6 +51,8 @@ static char *ngx_stream_ssl_password_file(ngx_conf_t *cf, ngx_command_t *cmd,
void *conf);
static char *ngx_stream_ssl_session_cache(ngx_conf_t *cf, ngx_command_t *cmd,
void *conf);
static char *ngx_stream_ssl_ocsp_cache(ngx_conf_t *cf, ngx_command_t *cmd,
void *conf);
static char *ngx_stream_ssl_alpn(ngx_conf_t *cf, ngx_command_t *cmd,
void *conf);
@ -80,6 +82,14 @@ static ngx_conf_enum_t ngx_stream_ssl_verify[] = {
};
static ngx_conf_enum_t ngx_stream_ssl_ocsp[] = {
{ ngx_string("off"), 0 },
{ ngx_string("on"), 1 },
{ ngx_string("leaf"), 2 },
{ ngx_null_string, 0 }
};
static ngx_conf_post_t ngx_stream_ssl_conf_command_post =
{ ngx_stream_ssl_conf_command_check };
@ -212,6 +222,27 @@ static ngx_command_t ngx_stream_ssl_commands[] = {
offsetof(ngx_stream_ssl_srv_conf_t, crl),
NULL },
{ ngx_string("ssl_ocsp"),
NGX_STREAM_MAIN_CONF|NGX_STREAM_SRV_CONF|NGX_CONF_FLAG,
ngx_conf_set_enum_slot,
NGX_STREAM_SRV_CONF_OFFSET,
offsetof(ngx_stream_ssl_srv_conf_t, ocsp),
&ngx_stream_ssl_ocsp },
{ ngx_string("ssl_ocsp_responder"),
NGX_STREAM_MAIN_CONF|NGX_STREAM_SRV_CONF|NGX_CONF_TAKE1,
ngx_conf_set_str_slot,
NGX_STREAM_SRV_CONF_OFFSET,
offsetof(ngx_stream_ssl_srv_conf_t, ocsp_responder),
NULL },
{ ngx_string("ssl_ocsp_cache"),
NGX_STREAM_MAIN_CONF|NGX_STREAM_SRV_CONF|NGX_CONF_TAKE1,
ngx_stream_ssl_ocsp_cache,
NGX_STREAM_SRV_CONF_OFFSET,
0,
NULL },
{ ngx_string("ssl_conf_command"),
NGX_STREAM_MAIN_CONF|NGX_STREAM_SRV_CONF|NGX_CONF_TAKE2,
ngx_conf_set_keyval_slot,
@ -777,6 +808,7 @@ ngx_stream_ssl_create_srv_conf(ngx_conf_t *cf)
* sscf->alpn = { 0, NULL };
* sscf->ciphers = { 0, NULL };
* sscf->shm_zone = NULL;
* sscf->ocsp_responder = { 0, NULL };
*/
sscf->handshake_timeout = NGX_CONF_UNSET_MSEC;
@ -792,6 +824,8 @@ ngx_stream_ssl_create_srv_conf(ngx_conf_t *cf)
sscf->session_timeout = NGX_CONF_UNSET;
sscf->session_tickets = NGX_CONF_UNSET;
sscf->session_ticket_keys = NGX_CONF_UNSET_PTR;
sscf->ocsp = NGX_CONF_UNSET_UINT;
sscf->ocsp_cache_zone = NGX_CONF_UNSET_PTR;
return sscf;
}
@ -846,6 +880,10 @@ ngx_stream_ssl_merge_srv_conf(ngx_conf_t *cf, void *parent, void *child)
ngx_conf_merge_ptr_value(conf->conf_commands, prev->conf_commands, NULL);
ngx_conf_merge_uint_value(conf->ocsp, prev->ocsp, 0);
ngx_conf_merge_str_value(conf->ocsp_responder, prev->ocsp_responder, "");
ngx_conf_merge_ptr_value(conf->ocsp_cache_zone,
prev->ocsp_cache_zone, NULL);
conf->ssl.log = cf->log;
@ -959,6 +997,23 @@ ngx_stream_ssl_merge_srv_conf(ngx_conf_t *cf, void *parent, void *child)
}
}
if (conf->ocsp) {
if (conf->verify == 3) {
ngx_log_error(NGX_LOG_EMERG, cf->log, 0,
"\"ssl_ocsp\" is incompatible with "
"\"ssl_verify_client optional_no_ca\"");
return NGX_CONF_ERROR;
}
if (ngx_ssl_ocsp(cf, &conf->ssl, &conf->ocsp_responder, conf->ocsp,
conf->ocsp_cache_zone)
!= NGX_OK)
{
return NGX_CONF_ERROR;
}
}
if (ngx_ssl_dhparam(cf, &conf->ssl, &conf->dhparam) != NGX_OK) {
return NGX_CONF_ERROR;
}
@ -1231,6 +1286,85 @@ invalid:
}
static char *
ngx_stream_ssl_ocsp_cache(ngx_conf_t *cf, ngx_command_t *cmd, void *conf)
{
ngx_stream_ssl_srv_conf_t *sscf = conf;
size_t len;
ngx_int_t n;
ngx_str_t *value, name, size;
ngx_uint_t j;
if (sscf->ocsp_cache_zone != NGX_CONF_UNSET_PTR) {
return "is duplicate";
}
value = cf->args->elts;
if (ngx_strcmp(value[1].data, "off") == 0) {
sscf->ocsp_cache_zone = NULL;
return NGX_CONF_OK;
}
if (value[1].len <= sizeof("shared:") - 1
|| ngx_strncmp(value[1].data, "shared:", sizeof("shared:") - 1) != 0)
{
goto invalid;
}
len = 0;
for (j = sizeof("shared:") - 1; j < value[1].len; j++) {
if (value[1].data[j] == ':') {
break;
}
len++;
}
if (len == 0 || j == value[1].len) {
goto invalid;
}
name.len = len;
name.data = value[1].data + sizeof("shared:") - 1;
size.len = value[1].len - j - 1;
size.data = name.data + len + 1;
n = ngx_parse_size(&size);
if (n == NGX_ERROR) {
goto invalid;
}
if (n < (ngx_int_t) (8 * ngx_pagesize)) {
ngx_conf_log_error(NGX_LOG_EMERG, cf, 0,
"OCSP cache \"%V\" is too small", &value[1]);
return NGX_CONF_ERROR;
}
sscf->ocsp_cache_zone = ngx_shared_memory_add(cf, &name, n,
&ngx_stream_ssl_module_ctx);
if (sscf->ocsp_cache_zone == NULL) {
return NGX_CONF_ERROR;
}
sscf->ocsp_cache_zone->init = ngx_ssl_ocsp_cache_init;
return NGX_CONF_OK;
invalid:
ngx_conf_log_error(NGX_LOG_EMERG, cf, 0,
"invalid OCSP cache \"%V\"", &value[1]);
return NGX_CONF_ERROR;
}
static char *
ngx_stream_ssl_alpn(ngx_conf_t *cf, ngx_command_t *cmd, void *conf)
{
@ -1308,6 +1442,27 @@ ngx_stream_ssl_init(ngx_conf_t *cf)
ngx_stream_core_main_conf_t *cmcf;
cmcf = ngx_stream_conf_get_module_main_conf(cf, ngx_stream_core_module);
cscfp = cmcf->servers.elts;
for (s = 0; s < cmcf->servers.nelts; s++) {
sscf = cscfp[s]->ctx->srv_conf[ngx_stream_ssl_module.ctx_index];
if (sscf->ssl.ctx == NULL) {
continue;
}
cscf = cscfp[s]->ctx->srv_conf[ngx_stream_core_module.ctx_index];
if (sscf->ocsp) {
if (ngx_ssl_ocsp_resolver(cf, &sscf->ssl, cscf->resolver,
cscf->resolver_timeout)
!= NGX_OK)
{
return NGX_ERROR;
}
}
}
h = ngx_array_push(&cmcf->phases[NGX_STREAM_SSL_PHASE].handlers);
if (h == NULL) {

4
src/stream/ngx_stream_ssl_module.h
View File

@ -53,6 +53,10 @@ typedef struct {
ngx_flag_t session_tickets;
ngx_array_t *session_ticket_keys;
ngx_uint_t ocsp;
ngx_str_t ocsp_responder;
ngx_shm_zone_t *ocsp_cache_zone;
} ngx_stream_ssl_srv_conf_t;