mirror of
https://github.com/cesanta/mongoose.git
synced 2024-12-26 22:41:03 +08:00
Split TLS files and introduce MG_ENABLE_CUSTOM_TLS
This commit is contained in:
Sergey Lyubka
parent
84f3fb0ba5
commit
755bf3c412
2
Makefile
2
Makefile
@ -125,7 +125,7 @@ mongoose.c: Makefile $(wildcard src/*)
|
||||
(cat src/license.h; echo; echo '#include "mongoose.h"' ; (for F in src/*.c ; do echo; echo '#ifdef MG_ENABLE_LINES'; echo "#line 1 \"$$F\""; echo '#endif'; cat $$F | sed -e 's,#include ".*,,'; done))> $@
|
||||
|
||||
mongoose.h: $(HDRS) Makefile
|
||||
(cat src/license.h; echo; echo '#ifndef MONGOOSE_H'; echo '#define MONGOOSE_H'; echo; cat src/version.h ; echo; echo '#ifdef __cplusplus'; echo 'extern "C" {'; echo '#endif'; cat src/config.h src/arch.h src/arch_*.h src/str.h src/log.h src/timer.h src/util.h src/fs.h src/url.h src/iobuf.h src/base64.h src/md5.h src/sha1.h src/event.h src/net.h src/http.h src/ssi.h src/tls.h src/ws.h src/sntp.h src/mqtt.h src/dns.h | sed -e 's,#include ".*,,' -e 's,^#pragma once,,'; echo; echo '#ifdef __cplusplus'; echo '}'; echo '#endif'; echo '#endif // MONGOOSE_H')> $@
|
||||
(cat src/license.h; echo; echo '#ifndef MONGOOSE_H'; echo '#define MONGOOSE_H'; echo; cat src/version.h ; echo; echo '#ifdef __cplusplus'; echo 'extern "C" {'; echo '#endif'; cat src/config.h src/arch.h src/arch_*.h src/str.h src/log.h src/timer.h src/util.h src/fs.h src/url.h src/iobuf.h src/base64.h src/md5.h src/sha1.h src/event.h src/net.h src/http.h src/ssi.h src/tls.h src/tls_mbed.h src/tls_openssl.h src/ws.h src/sntp.h src/mqtt.h src/dns.h | sed -e 's,#include ".*,,' -e 's,^#pragma once,,'; echo; echo '#ifdef __cplusplus'; echo '}'; echo '#endif'; echo '#endif // MONGOOSE_H')> $@
|
||||
|
||||
clean:
|
||||
rm -rf $(PROG) *.o *.dSYM unit_test* ut fuzzer *.gcov *.gcno *.gcda *.obj *.exe *.ilk *.pdb slow-unit* _CL_* infer-out data.txt crash-* test/packed_fs.c pack
|
||||
|
||||
@ -234,6 +234,7 @@ Here is a list of build constants and their default values:
|
||||
|MG_ENABLE_SOCKET | 1 | Use BSD socket low-level API |
|
||||
|MG_ENABLE_MBEDTLS | 0 | Enable mbedTLS library |
|
||||
|MG_ENABLE_OPENSSL | 0 | Enable OpenSSL library |
|
||||
|MG_ENABLE_CUSTOM_TLS | 0 | Enable custom TLS library |
|
||||
|MG_ENABLE_IPV6 | 0 | Enable IPv6 |
|
||||
|MG_ENABLE_LOG | 1 | Enable `LOG()` macro |
|
||||
|MG_ENABLE_MD5 | 0 | Use native MD5 implementation |
|
||||
@ -244,6 +245,7 @@ Here is a list of build constants and their default values:
|
||||
|MG_IO_SIZE | 2048 | Granularity of the send/recv IO buffer growth |
|
||||
|MG_MAX_RECV_BUF_SIZE | (3 * 1024 * 1024) | Maximum recv buffer size |
|
||||
|MG_MAX_HTTP_HEADERS | 40 | Maximum number of HTTP headers |
|
||||
|MG_HTTP_INDEX | "index.html" | Index file for HTML directory |
|
||||
|MG_ENABLE_LINES | undefined | If defined, show source file names in logs |
|
||||
|
||||
<span class="badge bg-danger">NOTE:</span> the `MG_IO_SIZE` constant also sets
|
||||
|
||||
@ -1,5 +1,6 @@
|
||||
PROG ?= example
|
||||
|
||||
CFLAGS ?= -W -Wall -DMG_ENABLE_LINES=1
|
||||
ifneq ($(MBEDTLS_DIR),)
|
||||
CFLAGS += -DMG_ENABLE_MBEDTLS=1 -I$(MBEDTLS_DIR)/include -I/usr/include
|
||||
CFLAGS += -L$(MBEDTLS_DIR)/lib -lmbedtls -lmbedcrypto -lmbedx509
|
||||
@ -12,7 +13,7 @@ all: $(PROG)
|
||||
$(DEBUGGER) ./$(PROG) $(ARGS)
|
||||
|
||||
$(PROG): main.c
|
||||
$(CC) ../../mongoose.c -I../.. -W -Wall -DMG_ENABLE_LINES=1 $(CFLAGS) -o $(PROG) main.c
|
||||
$(CC) ../../mongoose.c -I../.. $(CFLAGS) $(EFLAGS) -o $(PROG) main.c
|
||||
|
||||
clean:
|
||||
rm -rf $(PROG) *.o *.dSYM *.gcov *.gcno *.gcda *.obj *.exe *.ilk *.pdb
|
||||
|
||||
79
mongoose.c
79
mongoose.c
@ -3694,38 +3694,35 @@ void mg_timer_poll(unsigned long now_ms) {
|
||||
}
|
||||
|
||||
#ifdef MG_ENABLE_LINES
|
||||
#line 1 "src/tls.c"
|
||||
#line 1 "src/tls_dummy.c"
|
||||
#endif
|
||||
|
||||
|
||||
#if MG_ENABLE_MBEDTLS ///////////////////////////////////////// MBEDTLS
|
||||
|
||||
|
||||
|
||||
|
||||
#include <mbedtls/debug.h>
|
||||
#include <mbedtls/ssl.h>
|
||||
|
||||
#if defined(MBEDTLS_VERSION_NUMBER) && MBEDTLS_VERSION_NUMBER >= 0x03000000
|
||||
#define RNG , rng_get, NULL
|
||||
#else
|
||||
#define RNG
|
||||
#if !MG_ENABLE_MBEDTLS && !MG_ENABLE_OPENSSL && !MG_ENABLE_CUSTOM_TLS
|
||||
void mg_tls_init(struct mg_connection *c, struct mg_tls_opts *opts) {
|
||||
(void) opts;
|
||||
mg_error(c, "TLS is not enabled");
|
||||
}
|
||||
void mg_tls_handshake(struct mg_connection *c) {
|
||||
(void) c;
|
||||
}
|
||||
void mg_tls_free(struct mg_connection *c) {
|
||||
(void) c;
|
||||
}
|
||||
long mg_tls_recv(struct mg_connection *c, void *buf, size_t len) {
|
||||
return c == NULL || buf == NULL || len == 0 ? 0 : -1;
|
||||
}
|
||||
long mg_tls_send(struct mg_connection *c, const void *buf, size_t len) {
|
||||
return c == NULL || buf == NULL || len == 0 ? 0 : -1;
|
||||
}
|
||||
#endif
|
||||
|
||||
// Different versions have those in different files, so declare here
|
||||
EXTERN_C int mbedtls_net_recv(void *, unsigned char *, size_t);
|
||||
EXTERN_C int mbedtls_net_send(void *, const unsigned char *, size_t);
|
||||
#ifdef MG_ENABLE_LINES
|
||||
#line 1 "src/tls_mbed.c"
|
||||
#endif
|
||||
|
||||
struct mg_tls {
|
||||
char *cafile; // CA certificate path
|
||||
mbedtls_x509_crt ca; // Parsed CA certificate
|
||||
mbedtls_x509_crl crl; // Parsed Certificate Revocation List
|
||||
mbedtls_x509_crt cert; // Parsed certificate
|
||||
mbedtls_ssl_context ssl; // SSL/TLS context
|
||||
mbedtls_ssl_config conf; // SSL-TLS config
|
||||
mbedtls_pk_context pk; // Private key context
|
||||
};
|
||||
|
||||
#if MG_ENABLE_MBEDTLS
|
||||
void mg_tls_handshake(struct mg_connection *c) {
|
||||
struct mg_tls *tls = (struct mg_tls *) c->tls;
|
||||
int rc;
|
||||
@ -3913,16 +3910,14 @@ void mg_tls_free(struct mg_connection *c) {
|
||||
free(tls);
|
||||
c->tls = NULL;
|
||||
}
|
||||
#elif MG_ENABLE_OPENSSL ///////////////////////////////////////// OPENSSL
|
||||
#endif
|
||||
|
||||
#include <openssl/err.h>
|
||||
#include <openssl/ssl.h>
|
||||
#ifdef MG_ENABLE_LINES
|
||||
#line 1 "src/tls_openssl.c"
|
||||
#endif
|
||||
|
||||
struct mg_tls {
|
||||
SSL_CTX *ctx;
|
||||
SSL *ssl;
|
||||
};
|
||||
|
||||
#if MG_ENABLE_OPENSSL
|
||||
static int mg_tls_err(struct mg_tls *tls, int res) {
|
||||
int err = SSL_get_error(tls->ssl, res);
|
||||
// We've just fetched the last error from the queue.
|
||||
@ -4066,26 +4061,6 @@ long mg_tls_send(struct mg_connection *c, const void *buf, size_t len) {
|
||||
int n = SSL_write(tls->ssl, buf, (int) len);
|
||||
return n == 0 ? -1 : n < 0 && mg_tls_err(tls, n) == 0 ? 0 : n;
|
||||
}
|
||||
|
||||
#else ////////////////////////////////////////// NO TLS
|
||||
|
||||
void mg_tls_init(struct mg_connection *c, struct mg_tls_opts *opts) {
|
||||
(void) opts;
|
||||
mg_error(c, "TLS is not enabled");
|
||||
}
|
||||
void mg_tls_handshake(struct mg_connection *c) {
|
||||
(void) c;
|
||||
}
|
||||
void mg_tls_free(struct mg_connection *c) {
|
||||
(void) c;
|
||||
}
|
||||
long mg_tls_recv(struct mg_connection *c, void *buf, size_t len) {
|
||||
return c == NULL || buf == NULL || len == 0 ? 0 : -1;
|
||||
}
|
||||
long mg_tls_send(struct mg_connection *c, const void *buf, size_t len) {
|
||||
return c == NULL || buf == NULL || len == 0 ? 0 : -1;
|
||||
}
|
||||
|
||||
#endif
|
||||
|
||||
#ifdef MG_ENABLE_LINES
|
||||
|
||||
53
mongoose.h
53
mongoose.h
@ -37,6 +37,10 @@ extern "C" {
|
||||
#define MG_ENABLE_OPENSSL 0
|
||||
#endif
|
||||
|
||||
#ifndef MG_ENABLE_CUSTOM_TLS
|
||||
#define MG_ENABLE_CUSTOM_TLS 0
|
||||
#endif
|
||||
|
||||
#ifndef MG_ENABLE_SSI
|
||||
#define MG_ENABLE_SSI 1
|
||||
#endif
|
||||
@ -84,6 +88,10 @@ extern "C" {
|
||||
#define MG_MAX_HTTP_HEADERS 40
|
||||
#endif
|
||||
|
||||
#ifndef MG_HTTP_INDEX
|
||||
#define MG_HTTP_INDEX "index.html"
|
||||
#endif
|
||||
|
||||
#ifndef MG_PATH_MAX
|
||||
#define MG_PATH_MAX PATH_MAX
|
||||
#endif
|
||||
@ -912,6 +920,9 @@ void mg_http_serve_ssi(struct mg_connection *c, const char *root,
|
||||
|
||||
|
||||
|
||||
|
||||
|
||||
|
||||
struct mg_tls_opts {
|
||||
const char *ca; // CA certificate file. For both listeners and clients
|
||||
const char *crl; // Certificate Revocation List. For clients
|
||||
@ -928,6 +939,48 @@ long mg_tls_recv(struct mg_connection *, void *buf, size_t len);
|
||||
void mg_tls_handshake(struct mg_connection *);
|
||||
|
||||
|
||||
#if MG_ENABLE_MBEDTLS
|
||||
|
||||
|
||||
|
||||
|
||||
#include <mbedtls/debug.h>
|
||||
#include <mbedtls/ssl.h>
|
||||
|
||||
#if defined(MBEDTLS_VERSION_NUMBER) && MBEDTLS_VERSION_NUMBER >= 0x03000000
|
||||
#define RNG , rng_get, NULL
|
||||
#else
|
||||
#define RNG
|
||||
#endif
|
||||
|
||||
// Different versions have those in different files, so declare here
|
||||
EXTERN_C int mbedtls_net_recv(void *, unsigned char *, size_t);
|
||||
EXTERN_C int mbedtls_net_send(void *, const unsigned char *, size_t);
|
||||
|
||||
struct mg_tls {
|
||||
char *cafile; // CA certificate path
|
||||
mbedtls_x509_crt ca; // Parsed CA certificate
|
||||
mbedtls_x509_crl crl; // Parsed Certificate Revocation List
|
||||
mbedtls_x509_crt cert; // Parsed certificate
|
||||
mbedtls_ssl_context ssl; // SSL/TLS context
|
||||
mbedtls_ssl_config conf; // SSL-TLS config
|
||||
mbedtls_pk_context pk; // Private key context
|
||||
};
|
||||
#endif
|
||||
|
||||
|
||||
#if MG_ENABLE_OPENSSL
|
||||
|
||||
#include <openssl/err.h>
|
||||
#include <openssl/ssl.h>
|
||||
|
||||
struct mg_tls {
|
||||
SSL_CTX *ctx;
|
||||
SSL *ssl;
|
||||
};
|
||||
#endif
|
||||
|
||||
|
||||
#define WEBSOCKET_OP_CONTINUE 0
|
||||
#define WEBSOCKET_OP_TEXT 1
|
||||
#define WEBSOCKET_OP_BINARY 2
|
||||
|
||||
@ -12,6 +12,10 @@
|
||||
#define MG_ENABLE_OPENSSL 0
|
||||
#endif
|
||||
|
||||
#ifndef MG_ENABLE_CUSTOM_TLS
|
||||
#define MG_ENABLE_CUSTOM_TLS 0
|
||||
#endif
|
||||
|
||||
#ifndef MG_ENABLE_SSI
|
||||
#define MG_ENABLE_SSI 1
|
||||
#endif
|
||||
@ -59,6 +63,10 @@
|
||||
#define MG_MAX_HTTP_HEADERS 40
|
||||
#endif
|
||||
|
||||
#ifndef MG_HTTP_INDEX
|
||||
#define MG_HTTP_INDEX "index.html"
|
||||
#endif
|
||||
|
||||
#ifndef MG_PATH_MAX
|
||||
#define MG_PATH_MAX PATH_MAX
|
||||
#endif
|
||||
|
||||
391
src/tls.c
391
src/tls.c
@ -1,391 +0,0 @@
|
||||
#include "tls.h"
|
||||
|
||||
#if MG_ENABLE_MBEDTLS ///////////////////////////////////////// MBEDTLS
|
||||
#include "log.h"
|
||||
#include "url.h"
|
||||
#include "util.h"
|
||||
|
||||
#include <mbedtls/debug.h>
|
||||
#include <mbedtls/ssl.h>
|
||||
|
||||
#if defined(MBEDTLS_VERSION_NUMBER) && MBEDTLS_VERSION_NUMBER >= 0x03000000
|
||||
#define RNG , rng_get, NULL
|
||||
#else
|
||||
#define RNG
|
||||
#endif
|
||||
|
||||
// Different versions have those in different files, so declare here
|
||||
EXTERN_C int mbedtls_net_recv(void *, unsigned char *, size_t);
|
||||
EXTERN_C int mbedtls_net_send(void *, const unsigned char *, size_t);
|
||||
|
||||
struct mg_tls {
|
||||
char *cafile; // CA certificate path
|
||||
mbedtls_x509_crt ca; // Parsed CA certificate
|
||||
mbedtls_x509_crl crl; // Parsed Certificate Revocation List
|
||||
mbedtls_x509_crt cert; // Parsed certificate
|
||||
mbedtls_ssl_context ssl; // SSL/TLS context
|
||||
mbedtls_ssl_config conf; // SSL-TLS config
|
||||
mbedtls_pk_context pk; // Private key context
|
||||
};
|
||||
|
||||
void mg_tls_handshake(struct mg_connection *c) {
|
||||
struct mg_tls *tls = (struct mg_tls *) c->tls;
|
||||
int rc;
|
||||
mbedtls_ssl_set_bio(&tls->ssl, &c->fd, mbedtls_net_send, mbedtls_net_recv, 0);
|
||||
rc = mbedtls_ssl_handshake(&tls->ssl);
|
||||
if (rc == 0) { // Success
|
||||
LOG(LL_DEBUG, ("%lu success", c->id));
|
||||
c->is_tls_hs = 0;
|
||||
} else if (rc == MBEDTLS_ERR_SSL_WANT_READ ||
|
||||
rc == MBEDTLS_ERR_SSL_WANT_WRITE) { // Still pending
|
||||
LOG(LL_VERBOSE_DEBUG, ("%lu pending, %d%d %d (-%#x)", c->id,
|
||||
c->is_connecting, c->is_tls_hs, rc, -rc));
|
||||
} else {
|
||||
mg_error(c, "TLS handshake: -%#x", -rc); // Error
|
||||
}
|
||||
}
|
||||
|
||||
static int mbed_rng(void *ctx, unsigned char *buf, size_t len) {
|
||||
mg_random(buf, len);
|
||||
(void) ctx;
|
||||
return 0;
|
||||
}
|
||||
|
||||
static void debug_cb(void *c, int lev, const char *s, int n, const char *s2) {
|
||||
n = (int) strlen(s2) - 1;
|
||||
LOG(LL_VERBOSE_DEBUG, ("%p %.*s", ((struct mg_connection *) c)->fd, n, s2));
|
||||
(void) s;
|
||||
(void) c;
|
||||
(void) lev;
|
||||
}
|
||||
|
||||
#if defined(MBEDTLS_VERSION_NUMBER) && MBEDTLS_VERSION_NUMBER >= 0x03000000
|
||||
static int rng_get(void *p_rng, unsigned char *buf, size_t len) {
|
||||
(void) p_rng;
|
||||
mg_random(buf, len);
|
||||
return 0;
|
||||
}
|
||||
#endif
|
||||
|
||||
void mg_tls_init(struct mg_connection *c, struct mg_tls_opts *opts) {
|
||||
struct mg_tls *tls = (struct mg_tls *) calloc(1, sizeof(*tls));
|
||||
int rc = 0;
|
||||
const char *ca = opts->ca == NULL ? "-"
|
||||
: opts->ca[0] == '-' ? "(emb)"
|
||||
: opts->ca;
|
||||
const char *crl = opts->crl == NULL ? "-"
|
||||
: opts->crl[0] == '-' ? "(emb)"
|
||||
: opts->crl;
|
||||
const char *cert = opts->cert == NULL ? "-"
|
||||
: opts->cert[0] == '-' ? "(emb)"
|
||||
: opts->cert;
|
||||
const char *certkey = opts->certkey == NULL ? "-"
|
||||
: opts->certkey[0] == '-' ? "(emb)"
|
||||
: opts->certkey;
|
||||
if (tls == NULL) {
|
||||
mg_error(c, "TLS OOM");
|
||||
goto fail;
|
||||
}
|
||||
LOG(LL_DEBUG, ("%lu Setting TLS, CA: %s, CRL: %s, cert: %s, key: %s", c->id,
|
||||
ca, crl, cert, certkey));
|
||||
mbedtls_ssl_init(&tls->ssl);
|
||||
mbedtls_ssl_config_init(&tls->conf);
|
||||
mbedtls_x509_crt_init(&tls->ca);
|
||||
mbedtls_x509_crl_init(&tls->crl);
|
||||
mbedtls_x509_crt_init(&tls->cert);
|
||||
mbedtls_pk_init(&tls->pk);
|
||||
mbedtls_ssl_conf_dbg(&tls->conf, debug_cb, c);
|
||||
//#if !defined(ESP_PLATFORM)
|
||||
// mbedtls_debug_set_threshold(5);
|
||||
//#endif
|
||||
if ((rc = mbedtls_ssl_config_defaults(
|
||||
&tls->conf,
|
||||
c->is_client ? MBEDTLS_SSL_IS_CLIENT : MBEDTLS_SSL_IS_SERVER,
|
||||
MBEDTLS_SSL_TRANSPORT_STREAM, MBEDTLS_SSL_PRESET_DEFAULT)) != 0) {
|
||||
mg_error(c, "tls defaults %#x", -rc);
|
||||
goto fail;
|
||||
}
|
||||
mbedtls_ssl_conf_rng(&tls->conf, mbed_rng, c);
|
||||
if (opts->ca == NULL || strcmp(opts->ca, "*") == 0) {
|
||||
mbedtls_ssl_conf_authmode(&tls->conf, MBEDTLS_SSL_VERIFY_NONE);
|
||||
}
|
||||
if (opts->ca != NULL && opts->ca[0] != '\0') {
|
||||
if (opts->crl != NULL && opts->crl[0] != '\0') {
|
||||
rc = opts->crl[0] == '-'
|
||||
? mbedtls_x509_crl_parse(&tls->crl, (uint8_t *) opts->crl,
|
||||
strlen(opts->crl) + 1)
|
||||
: mbedtls_x509_crl_parse_file(&tls->crl, opts->crl);
|
||||
if (rc != 0) {
|
||||
mg_error(c, "parse(%s) err %#x", crl, -rc);
|
||||
goto fail;
|
||||
}
|
||||
}
|
||||
#if defined(MBEDTLS_X509_CA_CHAIN_ON_DISK)
|
||||
tls->cafile = strdup(opts->ca);
|
||||
rc = mbedtls_ssl_conf_ca_chain_file(&tls->conf, tls->cafile, &tls->crl);
|
||||
if (rc != 0) {
|
||||
mg_error(c, "parse on-disk chain(%s) err %#x", ca, -rc);
|
||||
goto fail;
|
||||
}
|
||||
#else
|
||||
rc = opts->ca[0] == '-'
|
||||
? mbedtls_x509_crt_parse(&tls->ca, (uint8_t *) opts->ca,
|
||||
strlen(opts->ca) + 1)
|
||||
: mbedtls_x509_crt_parse_file(&tls->ca, opts->ca);
|
||||
if (rc != 0) {
|
||||
mg_error(c, "parse(%s) err %#x", ca, -rc);
|
||||
goto fail;
|
||||
}
|
||||
mbedtls_ssl_conf_ca_chain(&tls->conf, &tls->ca, &tls->crl);
|
||||
#endif
|
||||
if (opts->srvname.len > 0) {
|
||||
char mem[128], *buf = mem;
|
||||
mg_asprintf(&buf, sizeof(mem), "%.*s", (int) opts->srvname.len,
|
||||
opts->srvname.ptr);
|
||||
mbedtls_ssl_set_hostname(&tls->ssl, buf);
|
||||
if (buf != mem) free(buf);
|
||||
}
|
||||
mbedtls_ssl_conf_authmode(&tls->conf, MBEDTLS_SSL_VERIFY_REQUIRED);
|
||||
}
|
||||
if (opts->cert != NULL && opts->cert[0] != '\0') {
|
||||
const char *key = opts->certkey;
|
||||
if (key == NULL) {
|
||||
key = opts->cert;
|
||||
certkey = cert;
|
||||
}
|
||||
rc = opts->cert[0] == '-'
|
||||
? mbedtls_x509_crt_parse(&tls->cert, (uint8_t *) opts->cert,
|
||||
strlen(opts->cert) + 1)
|
||||
: mbedtls_x509_crt_parse_file(&tls->cert, opts->cert);
|
||||
if (rc != 0) {
|
||||
mg_error(c, "parse(%s) err %#x", cert, -rc);
|
||||
goto fail;
|
||||
}
|
||||
rc = key[0] == '-' ? mbedtls_pk_parse_key(&tls->pk, (uint8_t *) key,
|
||||
strlen(key) + 1, NULL, 0 RNG)
|
||||
: mbedtls_pk_parse_keyfile(&tls->pk, key, NULL RNG);
|
||||
if (rc != 0) {
|
||||
mg_error(c, "tls key(%s) %#x", certkey, -rc);
|
||||
goto fail;
|
||||
}
|
||||
rc = mbedtls_ssl_conf_own_cert(&tls->conf, &tls->cert, &tls->pk);
|
||||
if (rc != 0) {
|
||||
mg_error(c, "own cert %#x", -rc);
|
||||
goto fail;
|
||||
}
|
||||
}
|
||||
if ((rc = mbedtls_ssl_setup(&tls->ssl, &tls->conf)) != 0) {
|
||||
mg_error(c, "setup err %#x", -rc);
|
||||
goto fail;
|
||||
}
|
||||
c->tls = tls;
|
||||
c->is_tls = 1;
|
||||
c->is_tls_hs = 1;
|
||||
if (c->is_client && c->is_resolving == 0 && c->is_connecting == 0) {
|
||||
mg_tls_handshake(c);
|
||||
}
|
||||
return;
|
||||
fail:
|
||||
c->is_closing = 1;
|
||||
free(tls);
|
||||
}
|
||||
|
||||
long mg_tls_recv(struct mg_connection *c, void *buf, size_t len) {
|
||||
struct mg_tls *tls = (struct mg_tls *) c->tls;
|
||||
long n = mbedtls_ssl_read(&tls->ssl, (unsigned char *) buf, len);
|
||||
return n == 0 ? -1 : n == MBEDTLS_ERR_SSL_WANT_READ ? 0 : n;
|
||||
}
|
||||
|
||||
long mg_tls_send(struct mg_connection *c, const void *buf, size_t len) {
|
||||
struct mg_tls *tls = (struct mg_tls *) c->tls;
|
||||
long n = mbedtls_ssl_write(&tls->ssl, (unsigned char *) buf, len);
|
||||
return n == 0 ? -1 : n == MBEDTLS_ERR_SSL_WANT_WRITE ? 0 : n;
|
||||
}
|
||||
|
||||
void mg_tls_free(struct mg_connection *c) {
|
||||
struct mg_tls *tls = (struct mg_tls *) c->tls;
|
||||
if (tls == NULL) return;
|
||||
free(tls->cafile);
|
||||
mbedtls_ssl_free(&tls->ssl);
|
||||
mbedtls_pk_free(&tls->pk);
|
||||
mbedtls_x509_crt_free(&tls->ca);
|
||||
mbedtls_x509_crl_free(&tls->crl);
|
||||
mbedtls_x509_crt_free(&tls->cert);
|
||||
mbedtls_ssl_config_free(&tls->conf);
|
||||
free(tls);
|
||||
c->tls = NULL;
|
||||
}
|
||||
#elif MG_ENABLE_OPENSSL ///////////////////////////////////////// OPENSSL
|
||||
|
||||
#include <openssl/err.h>
|
||||
#include <openssl/ssl.h>
|
||||
|
||||
struct mg_tls {
|
||||
SSL_CTX *ctx;
|
||||
SSL *ssl;
|
||||
};
|
||||
|
||||
static int mg_tls_err(struct mg_tls *tls, int res) {
|
||||
int err = SSL_get_error(tls->ssl, res);
|
||||
// We've just fetched the last error from the queue.
|
||||
// Now we need to clear the error queue. If we do not, then the following
|
||||
// can happen (actually reported):
|
||||
// - A new connection is accept()-ed with cert error (e.g. self-signed cert)
|
||||
// - Since all accept()-ed connections share listener's context,
|
||||
// - *ALL* SSL accepted connection report read error on the next poll cycle.
|
||||
// Thus a single errored connection can close all the rest, unrelated ones.
|
||||
// Clearing the error keeps the shared SSL_CTX in an OK state.
|
||||
|
||||
if (err != 0) ERR_print_errors_fp(stderr);
|
||||
ERR_clear_error();
|
||||
if (err == SSL_ERROR_WANT_READ) return 0;
|
||||
if (err == SSL_ERROR_WANT_WRITE) return 0;
|
||||
return err;
|
||||
}
|
||||
|
||||
void mg_tls_init(struct mg_connection *c, struct mg_tls_opts *opts) {
|
||||
struct mg_tls *tls = (struct mg_tls *) calloc(1, sizeof(*tls));
|
||||
const char *id = "mongoose";
|
||||
static unsigned char s_initialised = 0;
|
||||
int rc;
|
||||
|
||||
if (tls == NULL) {
|
||||
mg_error(c, "TLS OOM");
|
||||
goto fail;
|
||||
}
|
||||
|
||||
if (!s_initialised) {
|
||||
SSL_library_init();
|
||||
s_initialised++;
|
||||
}
|
||||
LOG(LL_DEBUG, ("%lu Setting TLS, CA: %s, cert: %s, key: %s", c->id,
|
||||
opts->ca == NULL ? "null" : opts->ca,
|
||||
opts->cert == NULL ? "null" : opts->cert,
|
||||
opts->certkey == NULL ? "null" : opts->certkey));
|
||||
tls->ctx = c->is_client ? SSL_CTX_new(SSLv23_client_method())
|
||||
: SSL_CTX_new(SSLv23_server_method());
|
||||
if ((tls->ssl = SSL_new(tls->ctx)) == NULL) {
|
||||
mg_error(c, "SSL_new");
|
||||
goto fail;
|
||||
}
|
||||
SSL_set_session_id_context(tls->ssl, (const uint8_t *) id,
|
||||
(unsigned) strlen(id));
|
||||
// Disable deprecated protocols
|
||||
SSL_set_options(tls->ssl, SSL_OP_NO_SSLv2);
|
||||
SSL_set_options(tls->ssl, SSL_OP_NO_SSLv3);
|
||||
SSL_set_options(tls->ssl, SSL_OP_NO_TLSv1);
|
||||
SSL_set_options(tls->ssl, SSL_OP_NO_TLSv1_1);
|
||||
#ifdef MG_ENABLE_OPENSSL_NO_COMPRESSION
|
||||
SSL_set_options(tls->ssl, SSL_OP_NO_COMPRESSION);
|
||||
#endif
|
||||
#ifdef MG_ENABLE_OPENSSL_CIPHER_SERVER_PREFERENCE
|
||||
SSL_set_options(tls->ssl, SSL_OP_CIPHER_SERVER_PREFERENCE);
|
||||
#endif
|
||||
|
||||
if (opts->ca != NULL && opts->ca[0] != '\0') {
|
||||
SSL_set_verify(tls->ssl, SSL_VERIFY_PEER | SSL_VERIFY_FAIL_IF_NO_PEER_CERT,
|
||||
NULL);
|
||||
if ((rc = SSL_CTX_load_verify_locations(tls->ctx, opts->ca, NULL)) != 1) {
|
||||
mg_error(c, "parse(%s): err %d", opts->ca, mg_tls_err(tls, rc));
|
||||
goto fail;
|
||||
}
|
||||
}
|
||||
if (opts->cert != NULL && opts->cert[0] != '\0') {
|
||||
const char *key = opts->certkey;
|
||||
if (key == NULL) key = opts->cert;
|
||||
if ((rc = SSL_use_certificate_file(tls->ssl, opts->cert, 1)) != 1) {
|
||||
mg_error(c, "Invalid SSL cert, err %d", mg_tls_err(tls, rc));
|
||||
goto fail;
|
||||
} else if ((rc = SSL_use_PrivateKey_file(tls->ssl, key, 1)) != 1) {
|
||||
mg_error(c, "Invalid SSL key, err %d", mg_tls_err(tls, rc));
|
||||
goto fail;
|
||||
#if OPENSSL_VERSION_NUMBER > 0x10100000L
|
||||
} else if ((rc = SSL_use_certificate_chain_file(tls->ssl, opts->cert)) !=
|
||||
1) {
|
||||
mg_error(c, "Invalid CA, err %d", mg_tls_err(tls, rc));
|
||||
goto fail;
|
||||
#endif
|
||||
} else {
|
||||
SSL_set_mode(tls->ssl, SSL_MODE_ACCEPT_MOVING_WRITE_BUFFER);
|
||||
#if OPENSSL_VERSION_NUMBER > 0x10002000L
|
||||
SSL_set_ecdh_auto(tls->ssl, 1);
|
||||
#endif
|
||||
}
|
||||
}
|
||||
if (opts->ciphers != NULL) SSL_set_cipher_list(tls->ssl, opts->ciphers);
|
||||
if (opts->srvname.len > 0) {
|
||||
char mem[128], *buf = mem;
|
||||
mg_asprintf(&buf, sizeof(mem), "%.*s", (int) opts->srvname.len,
|
||||
opts->srvname.ptr);
|
||||
SSL_set_tlsext_host_name(tls->ssl, buf);
|
||||
if (buf != mem) free(buf);
|
||||
}
|
||||
c->tls = tls;
|
||||
c->is_tls = 1;
|
||||
c->is_tls_hs = 1;
|
||||
if (c->is_client && c->is_resolving == 0 && c->is_connecting == 0) {
|
||||
mg_tls_handshake(c);
|
||||
}
|
||||
c->is_hexdumping = 1;
|
||||
LOG(LL_DEBUG, ("%lu SSL %s OK", c->id, c->is_accepted ? "accept" : "client"));
|
||||
return;
|
||||
fail:
|
||||
c->is_closing = 1;
|
||||
free(tls);
|
||||
}
|
||||
|
||||
void mg_tls_handshake(struct mg_connection *c) {
|
||||
struct mg_tls *tls = (struct mg_tls *) c->tls;
|
||||
int rc;
|
||||
SSL_set_fd(tls->ssl, (int) (size_t) c->fd);
|
||||
rc = c->is_client ? SSL_connect(tls->ssl) : SSL_accept(tls->ssl);
|
||||
if (rc == 1) {
|
||||
LOG(LL_DEBUG, ("%lu success", c->id));
|
||||
c->is_tls_hs = 0;
|
||||
} else {
|
||||
int code = mg_tls_err(tls, rc);
|
||||
if (code != 0) mg_error(c, "tls hs: rc %d, err %d", rc, code);
|
||||
}
|
||||
}
|
||||
|
||||
void mg_tls_free(struct mg_connection *c) {
|
||||
struct mg_tls *tls = (struct mg_tls *) c->tls;
|
||||
if (tls == NULL) return;
|
||||
SSL_free(tls->ssl);
|
||||
SSL_CTX_free(tls->ctx);
|
||||
free(tls);
|
||||
c->tls = NULL;
|
||||
}
|
||||
|
||||
long mg_tls_recv(struct mg_connection *c, void *buf, size_t len) {
|
||||
struct mg_tls *tls = (struct mg_tls *) c->tls;
|
||||
int n = SSL_read(tls->ssl, buf, (int) len);
|
||||
return n == 0 ? -1 : n < 0 && mg_tls_err(tls, n) == 0 ? 0 : n;
|
||||
}
|
||||
|
||||
long mg_tls_send(struct mg_connection *c, const void *buf, size_t len) {
|
||||
struct mg_tls *tls = (struct mg_tls *) c->tls;
|
||||
int n = SSL_write(tls->ssl, buf, (int) len);
|
||||
return n == 0 ? -1 : n < 0 && mg_tls_err(tls, n) == 0 ? 0 : n;
|
||||
}
|
||||
|
||||
#else ////////////////////////////////////////// NO TLS
|
||||
|
||||
void mg_tls_init(struct mg_connection *c, struct mg_tls_opts *opts) {
|
||||
(void) opts;
|
||||
mg_error(c, "TLS is not enabled");
|
||||
}
|
||||
void mg_tls_handshake(struct mg_connection *c) {
|
||||
(void) c;
|
||||
}
|
||||
void mg_tls_free(struct mg_connection *c) {
|
||||
(void) c;
|
||||
}
|
||||
long mg_tls_recv(struct mg_connection *c, void *buf, size_t len) {
|
||||
return c == NULL || buf == NULL || len == 0 ? 0 : -1;
|
||||
}
|
||||
long mg_tls_send(struct mg_connection *c, const void *buf, size_t len) {
|
||||
return c == NULL || buf == NULL || len == 0 ? 0 : -1;
|
||||
}
|
||||
|
||||
#endif
|
||||
@ -1,5 +1,8 @@
|
||||
#pragma once
|
||||
|
||||
#include "net.h"
|
||||
#include "tls_mbed.h"
|
||||
#include "tls_openssl.h"
|
||||
|
||||
struct mg_tls_opts {
|
||||
const char *ca; // CA certificate file. For both listeners and clients
|
||||
|
||||
20
src/tls_dummy.c
Normal file
20
src/tls_dummy.c
Normal file
@ -0,0 +1,20 @@
|
||||
#include "tls.h"
|
||||
|
||||
#if !MG_ENABLE_MBEDTLS && !MG_ENABLE_OPENSSL && !MG_ENABLE_CUSTOM_TLS
|
||||
void mg_tls_init(struct mg_connection *c, struct mg_tls_opts *opts) {
|
||||
(void) opts;
|
||||
mg_error(c, "TLS is not enabled");
|
||||
}
|
||||
void mg_tls_handshake(struct mg_connection *c) {
|
||||
(void) c;
|
||||
}
|
||||
void mg_tls_free(struct mg_connection *c) {
|
||||
(void) c;
|
||||
}
|
||||
long mg_tls_recv(struct mg_connection *c, void *buf, size_t len) {
|
||||
return c == NULL || buf == NULL || len == 0 ? 0 : -1;
|
||||
}
|
||||
long mg_tls_send(struct mg_connection *c, const void *buf, size_t len) {
|
||||
return c == NULL || buf == NULL || len == 0 ? 0 : -1;
|
||||
}
|
||||
#endif
|
||||
191
src/tls_mbed.c
Normal file
191
src/tls_mbed.c
Normal file
@ -0,0 +1,191 @@
|
||||
#include "tls.h"
|
||||
|
||||
#if MG_ENABLE_MBEDTLS
|
||||
void mg_tls_handshake(struct mg_connection *c) {
|
||||
struct mg_tls *tls = (struct mg_tls *) c->tls;
|
||||
int rc;
|
||||
mbedtls_ssl_set_bio(&tls->ssl, &c->fd, mbedtls_net_send, mbedtls_net_recv, 0);
|
||||
rc = mbedtls_ssl_handshake(&tls->ssl);
|
||||
if (rc == 0) { // Success
|
||||
LOG(LL_DEBUG, ("%lu success", c->id));
|
||||
c->is_tls_hs = 0;
|
||||
} else if (rc == MBEDTLS_ERR_SSL_WANT_READ ||
|
||||
rc == MBEDTLS_ERR_SSL_WANT_WRITE) { // Still pending
|
||||
LOG(LL_VERBOSE_DEBUG, ("%lu pending, %d%d %d (-%#x)", c->id,
|
||||
c->is_connecting, c->is_tls_hs, rc, -rc));
|
||||
} else {
|
||||
mg_error(c, "TLS handshake: -%#x", -rc); // Error
|
||||
}
|
||||
}
|
||||
|
||||
static int mbed_rng(void *ctx, unsigned char *buf, size_t len) {
|
||||
mg_random(buf, len);
|
||||
(void) ctx;
|
||||
return 0;
|
||||
}
|
||||
|
||||
static void debug_cb(void *c, int lev, const char *s, int n, const char *s2) {
|
||||
n = (int) strlen(s2) - 1;
|
||||
LOG(LL_VERBOSE_DEBUG, ("%p %.*s", ((struct mg_connection *) c)->fd, n, s2));
|
||||
(void) s;
|
||||
(void) c;
|
||||
(void) lev;
|
||||
}
|
||||
|
||||
#if defined(MBEDTLS_VERSION_NUMBER) && MBEDTLS_VERSION_NUMBER >= 0x03000000
|
||||
static int rng_get(void *p_rng, unsigned char *buf, size_t len) {
|
||||
(void) p_rng;
|
||||
mg_random(buf, len);
|
||||
return 0;
|
||||
}
|
||||
#endif
|
||||
|
||||
void mg_tls_init(struct mg_connection *c, struct mg_tls_opts *opts) {
|
||||
struct mg_tls *tls = (struct mg_tls *) calloc(1, sizeof(*tls));
|
||||
int rc = 0;
|
||||
const char *ca = opts->ca == NULL ? "-"
|
||||
: opts->ca[0] == '-' ? "(emb)"
|
||||
: opts->ca;
|
||||
const char *crl = opts->crl == NULL ? "-"
|
||||
: opts->crl[0] == '-' ? "(emb)"
|
||||
: opts->crl;
|
||||
const char *cert = opts->cert == NULL ? "-"
|
||||
: opts->cert[0] == '-' ? "(emb)"
|
||||
: opts->cert;
|
||||
const char *certkey = opts->certkey == NULL ? "-"
|
||||
: opts->certkey[0] == '-' ? "(emb)"
|
||||
: opts->certkey;
|
||||
if (tls == NULL) {
|
||||
mg_error(c, "TLS OOM");
|
||||
goto fail;
|
||||
}
|
||||
LOG(LL_DEBUG, ("%lu Setting TLS, CA: %s, CRL: %s, cert: %s, key: %s", c->id,
|
||||
ca, crl, cert, certkey));
|
||||
mbedtls_ssl_init(&tls->ssl);
|
||||
mbedtls_ssl_config_init(&tls->conf);
|
||||
mbedtls_x509_crt_init(&tls->ca);
|
||||
mbedtls_x509_crl_init(&tls->crl);
|
||||
mbedtls_x509_crt_init(&tls->cert);
|
||||
mbedtls_pk_init(&tls->pk);
|
||||
mbedtls_ssl_conf_dbg(&tls->conf, debug_cb, c);
|
||||
//#if !defined(ESP_PLATFORM)
|
||||
// mbedtls_debug_set_threshold(5);
|
||||
//#endif
|
||||
if ((rc = mbedtls_ssl_config_defaults(
|
||||
&tls->conf,
|
||||
c->is_client ? MBEDTLS_SSL_IS_CLIENT : MBEDTLS_SSL_IS_SERVER,
|
||||
MBEDTLS_SSL_TRANSPORT_STREAM, MBEDTLS_SSL_PRESET_DEFAULT)) != 0) {
|
||||
mg_error(c, "tls defaults %#x", -rc);
|
||||
goto fail;
|
||||
}
|
||||
mbedtls_ssl_conf_rng(&tls->conf, mbed_rng, c);
|
||||
if (opts->ca == NULL || strcmp(opts->ca, "*") == 0) {
|
||||
mbedtls_ssl_conf_authmode(&tls->conf, MBEDTLS_SSL_VERIFY_NONE);
|
||||
}
|
||||
if (opts->ca != NULL && opts->ca[0] != '\0') {
|
||||
if (opts->crl != NULL && opts->crl[0] != '\0') {
|
||||
rc = opts->crl[0] == '-'
|
||||
? mbedtls_x509_crl_parse(&tls->crl, (uint8_t *) opts->crl,
|
||||
strlen(opts->crl) + 1)
|
||||
: mbedtls_x509_crl_parse_file(&tls->crl, opts->crl);
|
||||
if (rc != 0) {
|
||||
mg_error(c, "parse(%s) err %#x", crl, -rc);
|
||||
goto fail;
|
||||
}
|
||||
}
|
||||
#if defined(MBEDTLS_X509_CA_CHAIN_ON_DISK)
|
||||
tls->cafile = strdup(opts->ca);
|
||||
rc = mbedtls_ssl_conf_ca_chain_file(&tls->conf, tls->cafile, &tls->crl);
|
||||
if (rc != 0) {
|
||||
mg_error(c, "parse on-disk chain(%s) err %#x", ca, -rc);
|
||||
goto fail;
|
||||
}
|
||||
#else
|
||||
rc = opts->ca[0] == '-'
|
||||
? mbedtls_x509_crt_parse(&tls->ca, (uint8_t *) opts->ca,
|
||||
strlen(opts->ca) + 1)
|
||||
: mbedtls_x509_crt_parse_file(&tls->ca, opts->ca);
|
||||
if (rc != 0) {
|
||||
mg_error(c, "parse(%s) err %#x", ca, -rc);
|
||||
goto fail;
|
||||
}
|
||||
mbedtls_ssl_conf_ca_chain(&tls->conf, &tls->ca, &tls->crl);
|
||||
#endif
|
||||
if (opts->srvname.len > 0) {
|
||||
char mem[128], *buf = mem;
|
||||
mg_asprintf(&buf, sizeof(mem), "%.*s", (int) opts->srvname.len,
|
||||
opts->srvname.ptr);
|
||||
mbedtls_ssl_set_hostname(&tls->ssl, buf);
|
||||
if (buf != mem) free(buf);
|
||||
}
|
||||
mbedtls_ssl_conf_authmode(&tls->conf, MBEDTLS_SSL_VERIFY_REQUIRED);
|
||||
}
|
||||
if (opts->cert != NULL && opts->cert[0] != '\0') {
|
||||
const char *key = opts->certkey;
|
||||
if (key == NULL) {
|
||||
key = opts->cert;
|
||||
certkey = cert;
|
||||
}
|
||||
rc = opts->cert[0] == '-'
|
||||
? mbedtls_x509_crt_parse(&tls->cert, (uint8_t *) opts->cert,
|
||||
strlen(opts->cert) + 1)
|
||||
: mbedtls_x509_crt_parse_file(&tls->cert, opts->cert);
|
||||
if (rc != 0) {
|
||||
mg_error(c, "parse(%s) err %#x", cert, -rc);
|
||||
goto fail;
|
||||
}
|
||||
rc = key[0] == '-' ? mbedtls_pk_parse_key(&tls->pk, (uint8_t *) key,
|
||||
strlen(key) + 1, NULL, 0 RNG)
|
||||
: mbedtls_pk_parse_keyfile(&tls->pk, key, NULL RNG);
|
||||
if (rc != 0) {
|
||||
mg_error(c, "tls key(%s) %#x", certkey, -rc);
|
||||
goto fail;
|
||||
}
|
||||
rc = mbedtls_ssl_conf_own_cert(&tls->conf, &tls->cert, &tls->pk);
|
||||
if (rc != 0) {
|
||||
mg_error(c, "own cert %#x", -rc);
|
||||
goto fail;
|
||||
}
|
||||
}
|
||||
if ((rc = mbedtls_ssl_setup(&tls->ssl, &tls->conf)) != 0) {
|
||||
mg_error(c, "setup err %#x", -rc);
|
||||
goto fail;
|
||||
}
|
||||
c->tls = tls;
|
||||
c->is_tls = 1;
|
||||
c->is_tls_hs = 1;
|
||||
if (c->is_client && c->is_resolving == 0 && c->is_connecting == 0) {
|
||||
mg_tls_handshake(c);
|
||||
}
|
||||
return;
|
||||
fail:
|
||||
c->is_closing = 1;
|
||||
free(tls);
|
||||
}
|
||||
|
||||
long mg_tls_recv(struct mg_connection *c, void *buf, size_t len) {
|
||||
struct mg_tls *tls = (struct mg_tls *) c->tls;
|
||||
long n = mbedtls_ssl_read(&tls->ssl, (unsigned char *) buf, len);
|
||||
return n == 0 ? -1 : n == MBEDTLS_ERR_SSL_WANT_READ ? 0 : n;
|
||||
}
|
||||
|
||||
long mg_tls_send(struct mg_connection *c, const void *buf, size_t len) {
|
||||
struct mg_tls *tls = (struct mg_tls *) c->tls;
|
||||
long n = mbedtls_ssl_write(&tls->ssl, (unsigned char *) buf, len);
|
||||
return n == 0 ? -1 : n == MBEDTLS_ERR_SSL_WANT_WRITE ? 0 : n;
|
||||
}
|
||||
|
||||
void mg_tls_free(struct mg_connection *c) {
|
||||
struct mg_tls *tls = (struct mg_tls *) c->tls;
|
||||
if (tls == NULL) return;
|
||||
free(tls->cafile);
|
||||
mbedtls_ssl_free(&tls->ssl);
|
||||
mbedtls_pk_free(&tls->pk);
|
||||
mbedtls_x509_crt_free(&tls->ca);
|
||||
mbedtls_x509_crl_free(&tls->crl);
|
||||
mbedtls_x509_crt_free(&tls->cert);
|
||||
mbedtls_ssl_config_free(&tls->conf);
|
||||
free(tls);
|
||||
c->tls = NULL;
|
||||
}
|
||||
#endif
|
||||
30
src/tls_mbed.h
Normal file
30
src/tls_mbed.h
Normal file
@ -0,0 +1,30 @@
|
||||
#pragma once
|
||||
|
||||
#if MG_ENABLE_MBEDTLS
|
||||
#include "log.h"
|
||||
#include "url.h"
|
||||
#include "util.h"
|
||||
|
||||
#include <mbedtls/debug.h>
|
||||
#include <mbedtls/ssl.h>
|
||||
|
||||
#if defined(MBEDTLS_VERSION_NUMBER) && MBEDTLS_VERSION_NUMBER >= 0x03000000
|
||||
#define RNG , rng_get, NULL
|
||||
#else
|
||||
#define RNG
|
||||
#endif
|
||||
|
||||
// Different versions have those in different files, so declare here
|
||||
EXTERN_C int mbedtls_net_recv(void *, unsigned char *, size_t);
|
||||
EXTERN_C int mbedtls_net_send(void *, const unsigned char *, size_t);
|
||||
|
||||
struct mg_tls {
|
||||
char *cafile; // CA certificate path
|
||||
mbedtls_x509_crt ca; // Parsed CA certificate
|
||||
mbedtls_x509_crl crl; // Parsed Certificate Revocation List
|
||||
mbedtls_x509_crt cert; // Parsed certificate
|
||||
mbedtls_ssl_context ssl; // SSL/TLS context
|
||||
mbedtls_ssl_config conf; // SSL-TLS config
|
||||
mbedtls_pk_context pk; // Private key context
|
||||
};
|
||||
#endif
|
||||
147
src/tls_openssl.c
Normal file
147
src/tls_openssl.c
Normal file
@ -0,0 +1,147 @@
|
||||
#include "tls.h"
|
||||
|
||||
#if MG_ENABLE_OPENSSL
|
||||
static int mg_tls_err(struct mg_tls *tls, int res) {
|
||||
int err = SSL_get_error(tls->ssl, res);
|
||||
// We've just fetched the last error from the queue.
|
||||
// Now we need to clear the error queue. If we do not, then the following
|
||||
// can happen (actually reported):
|
||||
// - A new connection is accept()-ed with cert error (e.g. self-signed cert)
|
||||
// - Since all accept()-ed connections share listener's context,
|
||||
// - *ALL* SSL accepted connection report read error on the next poll cycle.
|
||||
// Thus a single errored connection can close all the rest, unrelated ones.
|
||||
// Clearing the error keeps the shared SSL_CTX in an OK state.
|
||||
|
||||
if (err != 0) ERR_print_errors_fp(stderr);
|
||||
ERR_clear_error();
|
||||
if (err == SSL_ERROR_WANT_READ) return 0;
|
||||
if (err == SSL_ERROR_WANT_WRITE) return 0;
|
||||
return err;
|
||||
}
|
||||
|
||||
void mg_tls_init(struct mg_connection *c, struct mg_tls_opts *opts) {
|
||||
struct mg_tls *tls = (struct mg_tls *) calloc(1, sizeof(*tls));
|
||||
const char *id = "mongoose";
|
||||
static unsigned char s_initialised = 0;
|
||||
int rc;
|
||||
|
||||
if (tls == NULL) {
|
||||
mg_error(c, "TLS OOM");
|
||||
goto fail;
|
||||
}
|
||||
|
||||
if (!s_initialised) {
|
||||
SSL_library_init();
|
||||
s_initialised++;
|
||||
}
|
||||
LOG(LL_DEBUG, ("%lu Setting TLS, CA: %s, cert: %s, key: %s", c->id,
|
||||
opts->ca == NULL ? "null" : opts->ca,
|
||||
opts->cert == NULL ? "null" : opts->cert,
|
||||
opts->certkey == NULL ? "null" : opts->certkey));
|
||||
tls->ctx = c->is_client ? SSL_CTX_new(SSLv23_client_method())
|
||||
: SSL_CTX_new(SSLv23_server_method());
|
||||
if ((tls->ssl = SSL_new(tls->ctx)) == NULL) {
|
||||
mg_error(c, "SSL_new");
|
||||
goto fail;
|
||||
}
|
||||
SSL_set_session_id_context(tls->ssl, (const uint8_t *) id,
|
||||
(unsigned) strlen(id));
|
||||
// Disable deprecated protocols
|
||||
SSL_set_options(tls->ssl, SSL_OP_NO_SSLv2);
|
||||
SSL_set_options(tls->ssl, SSL_OP_NO_SSLv3);
|
||||
SSL_set_options(tls->ssl, SSL_OP_NO_TLSv1);
|
||||
SSL_set_options(tls->ssl, SSL_OP_NO_TLSv1_1);
|
||||
#ifdef MG_ENABLE_OPENSSL_NO_COMPRESSION
|
||||
SSL_set_options(tls->ssl, SSL_OP_NO_COMPRESSION);
|
||||
#endif
|
||||
#ifdef MG_ENABLE_OPENSSL_CIPHER_SERVER_PREFERENCE
|
||||
SSL_set_options(tls->ssl, SSL_OP_CIPHER_SERVER_PREFERENCE);
|
||||
#endif
|
||||
|
||||
if (opts->ca != NULL && opts->ca[0] != '\0') {
|
||||
SSL_set_verify(tls->ssl, SSL_VERIFY_PEER | SSL_VERIFY_FAIL_IF_NO_PEER_CERT,
|
||||
NULL);
|
||||
if ((rc = SSL_CTX_load_verify_locations(tls->ctx, opts->ca, NULL)) != 1) {
|
||||
mg_error(c, "parse(%s): err %d", opts->ca, mg_tls_err(tls, rc));
|
||||
goto fail;
|
||||
}
|
||||
}
|
||||
if (opts->cert != NULL && opts->cert[0] != '\0') {
|
||||
const char *key = opts->certkey;
|
||||
if (key == NULL) key = opts->cert;
|
||||
if ((rc = SSL_use_certificate_file(tls->ssl, opts->cert, 1)) != 1) {
|
||||
mg_error(c, "Invalid SSL cert, err %d", mg_tls_err(tls, rc));
|
||||
goto fail;
|
||||
} else if ((rc = SSL_use_PrivateKey_file(tls->ssl, key, 1)) != 1) {
|
||||
mg_error(c, "Invalid SSL key, err %d", mg_tls_err(tls, rc));
|
||||
goto fail;
|
||||
#if OPENSSL_VERSION_NUMBER > 0x10100000L
|
||||
} else if ((rc = SSL_use_certificate_chain_file(tls->ssl, opts->cert)) !=
|
||||
1) {
|
||||
mg_error(c, "Invalid CA, err %d", mg_tls_err(tls, rc));
|
||||
goto fail;
|
||||
#endif
|
||||
} else {
|
||||
SSL_set_mode(tls->ssl, SSL_MODE_ACCEPT_MOVING_WRITE_BUFFER);
|
||||
#if OPENSSL_VERSION_NUMBER > 0x10002000L
|
||||
SSL_set_ecdh_auto(tls->ssl, 1);
|
||||
#endif
|
||||
}
|
||||
}
|
||||
if (opts->ciphers != NULL) SSL_set_cipher_list(tls->ssl, opts->ciphers);
|
||||
if (opts->srvname.len > 0) {
|
||||
char mem[128], *buf = mem;
|
||||
mg_asprintf(&buf, sizeof(mem), "%.*s", (int) opts->srvname.len,
|
||||
opts->srvname.ptr);
|
||||
SSL_set_tlsext_host_name(tls->ssl, buf);
|
||||
if (buf != mem) free(buf);
|
||||
}
|
||||
c->tls = tls;
|
||||
c->is_tls = 1;
|
||||
c->is_tls_hs = 1;
|
||||
if (c->is_client && c->is_resolving == 0 && c->is_connecting == 0) {
|
||||
mg_tls_handshake(c);
|
||||
}
|
||||
c->is_hexdumping = 1;
|
||||
LOG(LL_DEBUG, ("%lu SSL %s OK", c->id, c->is_accepted ? "accept" : "client"));
|
||||
return;
|
||||
fail:
|
||||
c->is_closing = 1;
|
||||
free(tls);
|
||||
}
|
||||
|
||||
void mg_tls_handshake(struct mg_connection *c) {
|
||||
struct mg_tls *tls = (struct mg_tls *) c->tls;
|
||||
int rc;
|
||||
SSL_set_fd(tls->ssl, (int) (size_t) c->fd);
|
||||
rc = c->is_client ? SSL_connect(tls->ssl) : SSL_accept(tls->ssl);
|
||||
if (rc == 1) {
|
||||
LOG(LL_DEBUG, ("%lu success", c->id));
|
||||
c->is_tls_hs = 0;
|
||||
} else {
|
||||
int code = mg_tls_err(tls, rc);
|
||||
if (code != 0) mg_error(c, "tls hs: rc %d, err %d", rc, code);
|
||||
}
|
||||
}
|
||||
|
||||
void mg_tls_free(struct mg_connection *c) {
|
||||
struct mg_tls *tls = (struct mg_tls *) c->tls;
|
||||
if (tls == NULL) return;
|
||||
SSL_free(tls->ssl);
|
||||
SSL_CTX_free(tls->ctx);
|
||||
free(tls);
|
||||
c->tls = NULL;
|
||||
}
|
||||
|
||||
long mg_tls_recv(struct mg_connection *c, void *buf, size_t len) {
|
||||
struct mg_tls *tls = (struct mg_tls *) c->tls;
|
||||
int n = SSL_read(tls->ssl, buf, (int) len);
|
||||
return n == 0 ? -1 : n < 0 && mg_tls_err(tls, n) == 0 ? 0 : n;
|
||||
}
|
||||
|
||||
long mg_tls_send(struct mg_connection *c, const void *buf, size_t len) {
|
||||
struct mg_tls *tls = (struct mg_tls *) c->tls;
|
||||
int n = SSL_write(tls->ssl, buf, (int) len);
|
||||
return n == 0 ? -1 : n < 0 && mg_tls_err(tls, n) == 0 ? 0 : n;
|
||||
}
|
||||
#endif
|
||||
12
src/tls_openssl.h
Normal file
12
src/tls_openssl.h
Normal file
@ -0,0 +1,12 @@
|
||||
#pragma once
|
||||
|
||||
#if MG_ENABLE_OPENSSL
|
||||
|
||||
#include <openssl/err.h>
|
||||
#include <openssl/ssl.h>
|
||||
|
||||
struct mg_tls {
|
||||
SSL_CTX *ctx;
|
||||
SSL *ssl;
|
||||
};
|
||||
#endif
|
||||
Loading…
x
Reference in New Issue
Block a user