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Redbean SSL identification (#360)
* Let Fetch() be used earlier in initialization * Have ssl log messages show cert name * Introduce GetSslIdentity Lua API
This commit is contained in:
Paul Kulchenko
GitHub
parent
abac6f729c
commit
22409b2b5e
2 changed files with 59 additions and 16 deletions
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@ -672,6 +672,10 @@ FUNCTIONS
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GetScheme() → str
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Returns scheme from Request-URL, if any.
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GetSslIdentity() → str
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Returns certificate subject or PSK identity from the current SSL
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session. `nil` is returned for regular (non-SSL) connections.
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GetStatus() → int
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Returns current status (as set by an earlier SetStatus call) or
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`nil` if the status hasn't been set yet.
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@ -347,6 +347,7 @@ static bool invalidated;
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static bool logmessages;
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static bool isinitialized;
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static bool checkedmethod;
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static bool sslinitialized;
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static bool sslfetchverify;
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static bool sslclientverify;
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static bool connectionclose;
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@ -371,6 +372,7 @@ static int client;
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static int changeuid;
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static int changegid;
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static int statuscode;
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static int sslpskindex;
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static int oldloglevel;
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static int maxpayloadsize;
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static int messageshandled;
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@ -448,6 +450,8 @@ static char *HandleAsset(struct Asset *, const char *, size_t);
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static char *ServeAsset(struct Asset *, const char *, size_t);
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static char *SetStatus(unsigned, const char *);
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static void TlsInit(void);
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static void OnChld(void) {
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zombied = true;
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}
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@ -601,9 +605,9 @@ static void InternCertificate(mbedtls_x509_crt *cert, mbedtls_x509_crt *prev) {
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}
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}
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if (mbedtls_x509_time_is_past(&cert->valid_to)) {
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WARNF("(ssl) certificate is expired", gc(FormatX509Name(&cert->subject)));
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WARNF("(ssl) certificate %`'s is expired", gc(FormatX509Name(&cert->subject)));
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} else if (mbedtls_x509_time_is_future(&cert->valid_from)) {
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WARNF("(ssl) certificate is from the future",
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WARNF("(ssl) certificate %`'s is from the future",
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gc(FormatX509Name(&cert->subject)));
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}
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for (i = 0; i < certs.n; ++i) {
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@ -1470,6 +1474,8 @@ static int TlsRoutePsk(void *ctx, mbedtls_ssl_context *ssl,
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psks.p[i].identity_len)) {
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DEBUGF("(ssl) TlsRoutePsk(%`'.*s)", identity_len, identity);
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mbedtls_ssl_set_hs_psk(ssl, psks.p[i].key, psks.p[i].key_len);
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// keep track of selected psk to report its identity
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sslpskindex = i+1; // use index+1 to check against 0 (when not set)
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return 0;
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}
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}
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@ -1489,6 +1495,7 @@ static bool TlsSetup(void) {
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g_bio.a = 0;
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g_bio.b = 0;
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g_bio.c = 0;
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sslpskindex = 0;
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for (;;) {
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if (!(r = mbedtls_ssl_handshake(&ssl)) && TlsFlush(&g_bio, 0, 0) != -1) {
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LockInc(&shared->c.sslhandshakes);
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@ -3191,6 +3198,25 @@ static int LuaGetStatus(lua_State *L) {
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return 1;
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}
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static int LuaGetSslIdentity(lua_State *L) {
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const mbedtls_x509_crt *cert;
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OnlyCallDuringRequest(L, "GetSslIdentity");
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if (!usessl) {
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lua_pushnil(L);
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} else {
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if (sslpskindex) {
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CHECK((sslpskindex-1) >= 0 && (sslpskindex-1) < psks.n);
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lua_pushlstring(L, psks.p[sslpskindex-1].identity,
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psks.p[sslpskindex-1].identity_len);
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} else {
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cert = mbedtls_ssl_get_peer_cert(&ssl);
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lua_pushstring(L, cert ? gc(FormatX509Name(&cert->subject)) : "");
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}
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}
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return 1;
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}
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static int LuaServeError(lua_State *L) {
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return LuaRespond(L, ServeError);
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}
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@ -3565,12 +3591,6 @@ static int LuaFetch(lua_State *L) {
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.ai_protocol = IPPROTO_TCP,
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.ai_flags = AI_NUMERICSERV};
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if (!isinitialized) {
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luaL_error(L, "Fetch() can't be called from .init.lua global scope;"
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" try calling it from your OnServerStart() hook");
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unreachable;
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}
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/*
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* Get args: url [, body | {method = "PUT", body = "..."}]
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*/
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@ -3622,6 +3642,9 @@ static int LuaFetch(lua_State *L) {
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unreachable;
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}
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}
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if (usessl && !sslinitialized) TlsInit();
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if (url.host.n) {
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host = gc(strndup(url.host.p, url.host.n));
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if (url.port.n) {
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@ -5153,6 +5176,11 @@ static int LuaProgramSslFetchVerify(lua_State *L) {
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return LuaProgramBool(L, &sslfetchverify);
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}
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static int LuaProgramSslInit(lua_State *L) {
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TlsInit();
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return 0;
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}
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static int LuaProgramLogMessages(lua_State *L) {
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return LuaProgramBool(L, &logmessages);
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}
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@ -5601,6 +5629,7 @@ static const luaL_Reg kLuaFuncs[] = {
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{"GetRemoteAddr", LuaGetRemoteAddr}, //
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{"GetScheme", LuaGetScheme}, //
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{"GetServerAddr", LuaGetServerAddr}, //
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{"GetSslIdentity", LuaGetSslIdentity}, //
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{"GetStatus", LuaGetStatus}, //
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{"GetTime", LuaGetTime}, //
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{"GetUrl", LuaGetUrl}, //
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@ -5651,6 +5680,7 @@ static const luaL_Reg kLuaFuncs[] = {
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{"ProgramSslCiphersuite", LuaProgramSslCiphersuite}, //
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{"ProgramSslClientVerify", LuaProgramSslClientVerify}, //
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{"ProgramSslCompression", LuaProgramSslCompression}, //
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{"ProgramSslInit", LuaProgramSslInit}, //
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{"ProgramSslFetchVerify", LuaProgramSslFetchVerify}, //
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{"ProgramSslPresharedKey", LuaProgramSslPresharedKey}, //
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{"ProgramSslTicketLifetime", LuaProgramSslTicketLifetime}, //
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@ -6973,6 +7003,8 @@ static void SigInit(void) {
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static void TlsInit(void) {
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#ifndef UNSECURE
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int suite;
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if (!sslinitialized) {
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InitializeRng(&rng);
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InitializeRng(&rngcli);
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cachain = GetSslRoots();
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@ -6981,6 +7013,9 @@ static void TlsInit(void) {
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MBEDTLS_SSL_TRANSPORT_STREAM, suite);
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mbedtls_ssl_config_defaults(&confcli, MBEDTLS_SSL_IS_CLIENT,
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MBEDTLS_SSL_TRANSPORT_STREAM, suite);
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}
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// the following setting can be re-applied even when SSL/TLS is initialized
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if (suites.n) {
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mbedtls_ssl_conf_ciphersuites(&conf, suites.p);
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mbedtls_ssl_conf_ciphersuites(&confcli, suites.p);
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@ -6997,6 +7032,10 @@ static void TlsInit(void) {
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mbedtls_ssl_conf_session_tickets_cb(&conf, mbedtls_ssl_ticket_write,
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mbedtls_ssl_ticket_parse, &ssltick);
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}
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if (sslinitialized) return;
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sslinitialized = true;
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LoadCertificates();
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mbedtls_ssl_conf_sni(&conf, TlsRoute, 0);
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mbedtls_ssl_conf_dbg(&conf, TlsDebug, 0);
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