schannel: be quiet
Convert numerous infof() calls into debug-build only messages since they are annoyingly verbose for regular applications. Removed a few. Bug: https://curl.haxx.se/mail/lib-2019-02/0027.html Reported-by: Volker Schmid Closes #3552
This commit is contained in:
Daniel Stenberg
Родитель
aa1f1d48f3
Коммит
84c10dc1ba
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@ -433,8 +433,9 @@ schannel_connect_step1(struct connectdata *conn, int sockindex)
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char * const hostname = SSL_IS_PROXY() ? conn->http_proxy.host.name :
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conn->host.name;
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infof(data, "schannel: SSL/TLS connection with %s port %hu (step 1/3)\n",
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hostname, conn->remote_port);
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DEBUGF(infof(data,
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"schannel: SSL/TLS connection with %s port %hu (step 1/3)\n",
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hostname, conn->remote_port));
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if(Curl_verify_windows_version(5, 1, PLATFORM_WINNT,
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VERSION_LESS_THAN_EQUAL)) {
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@ -494,12 +495,13 @@ schannel_connect_step1(struct connectdata *conn, int sockindex)
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Curl_ssl_sessionid_lock(conn);
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if(!Curl_ssl_getsessionid(conn, (void **)&old_cred, NULL, sockindex)) {
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BACKEND->cred = old_cred;
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infof(data, "schannel: re-using existing credential handle\n");
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DEBUGF(infof(data, "schannel: re-using existing credential handle\n"));
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/* increment the reference counter of the credential/session handle */
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BACKEND->cred->refcount++;
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infof(data, "schannel: incremented credential handle refcount = %d\n",
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BACKEND->cred->refcount);
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DEBUGF(infof(data,
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"schannel: incremented credential handle refcount = %d\n",
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BACKEND->cred->refcount));
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}
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Curl_ssl_sessionid_unlock(conn);
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}
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@ -522,26 +524,28 @@ schannel_connect_step1(struct connectdata *conn, int sockindex)
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schannel_cred.dwFlags |= SCH_CRED_IGNORE_NO_REVOCATION_CHECK |
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SCH_CRED_IGNORE_REVOCATION_OFFLINE;
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infof(data, "schannel: disabled server certificate revocation "
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"checks\n");
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DEBUGF(infof(data, "schannel: disabled server certificate revocation "
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"checks\n"));
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}
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else {
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schannel_cred.dwFlags |= SCH_CRED_REVOCATION_CHECK_CHAIN;
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infof(data, "schannel: checking server certificate revocation\n");
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DEBUGF(infof(data,
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"schannel: checking server certificate revocation\n"));
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}
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}
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else {
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schannel_cred.dwFlags = SCH_CRED_MANUAL_CRED_VALIDATION |
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SCH_CRED_IGNORE_NO_REVOCATION_CHECK |
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SCH_CRED_IGNORE_REVOCATION_OFFLINE;
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infof(data, "schannel: disabled server certificate revocation checks\n");
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DEBUGF(infof(data,
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"schannel: disabled server cert revocation checks\n"));
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}
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if(!conn->ssl_config.verifyhost) {
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schannel_cred.dwFlags |= SCH_CRED_NO_SERVERNAME_CHECK;
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infof(data, "schannel: verifyhost setting prevents Schannel from "
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"comparing the supplied target name with the subject "
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"names in server certificates.\n");
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DEBUGF(infof(data, "schannel: verifyhost setting prevents Schannel from "
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"comparing the supplied target name with the subject "
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"names in server certificates.\n"));
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}
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switch(conn->ssl_config.version) {
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@ -824,8 +828,8 @@ schannel_connect_step1(struct connectdata *conn, int sockindex)
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}
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}
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infof(data, "schannel: sending initial handshake data: "
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"sending %lu bytes...\n", outbuf.cbBuffer);
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DEBUGF(infof(data, "schannel: sending initial handshake data: "
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"sending %lu bytes...\n", outbuf.cbBuffer));
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/* send initial handshake data which is now stored in output buffer */
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result = Curl_write_plain(conn, conn->sock[sockindex], outbuf.pvBuffer,
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@ -837,8 +841,8 @@ schannel_connect_step1(struct connectdata *conn, int sockindex)
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return CURLE_SSL_CONNECT_ERROR;
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}
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infof(data, "schannel: sent initial handshake data: "
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"sent %zd bytes\n", written);
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DEBUGF(infof(data, "schannel: sent initial handshake data: "
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"sent %zd bytes\n", written));
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BACKEND->recv_unrecoverable_err = CURLE_OK;
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BACKEND->recv_sspi_close_notify = false;
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@ -874,8 +878,9 @@ schannel_connect_step2(struct connectdata *conn, int sockindex)
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doread = (connssl->connecting_state != ssl_connect_2_writing) ? TRUE : FALSE;
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infof(data, "schannel: SSL/TLS connection with %s port %hu (step 2/3)\n",
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hostname, conn->remote_port);
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DEBUGF(infof(data,
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"schannel: SSL/TLS connection with %s port %hu (step 2/3)\n",
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hostname, conn->remote_port));
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if(!BACKEND->cred || !BACKEND->ctxt)
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return CURLE_SSL_CONNECT_ERROR;
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@ -934,8 +939,8 @@ schannel_connect_step2(struct connectdata *conn, int sockindex)
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if(result == CURLE_AGAIN) {
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if(connssl->connecting_state != ssl_connect_2_writing)
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connssl->connecting_state = ssl_connect_2_reading;
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infof(data, "schannel: failed to receive handshake, "
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"need more data\n");
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DEBUGF(infof(data, "schannel: failed to receive handshake, "
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"need more data\n"));
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return CURLE_OK;
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}
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else if((result != CURLE_OK) || (nread == 0)) {
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@ -947,11 +952,12 @@ schannel_connect_step2(struct connectdata *conn, int sockindex)
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/* increase encrypted data buffer offset */
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BACKEND->encdata_offset += nread;
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BACKEND->encdata_is_incomplete = false;
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infof(data, "schannel: encrypted data got %zd\n", nread);
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DEBUGF(infof(data, "schannel: encrypted data got %zd\n", nread));
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}
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infof(data, "schannel: encrypted data buffer: offset %zu length %zu\n",
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BACKEND->encdata_offset, BACKEND->encdata_length);
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DEBUGF(infof(data,
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"schannel: encrypted data buffer: offset %zu length %zu\n",
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BACKEND->encdata_offset, BACKEND->encdata_length));
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/* setup input buffers */
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InitSecBuffer(&inbuf[0], SECBUFFER_TOKEN, malloc(BACKEND->encdata_offset),
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@ -994,7 +1000,8 @@ schannel_connect_step2(struct connectdata *conn, int sockindex)
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if(sspi_status == SEC_E_INCOMPLETE_MESSAGE) {
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BACKEND->encdata_is_incomplete = true;
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connssl->connecting_state = ssl_connect_2_reading;
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infof(data, "schannel: received incomplete message, need more data\n");
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DEBUGF(infof(data,
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"schannel: received incomplete message, need more data\n"));
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return CURLE_OK;
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}
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@ -1005,7 +1012,8 @@ schannel_connect_step2(struct connectdata *conn, int sockindex)
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!(BACKEND->req_flags & ISC_REQ_USE_SUPPLIED_CREDS)) {
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BACKEND->req_flags |= ISC_REQ_USE_SUPPLIED_CREDS;
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connssl->connecting_state = ssl_connect_2_writing;
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infof(data, "schannel: a client certificate has been requested\n");
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DEBUGF(infof(data,
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"schannel: a client certificate has been requested\n"));
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return CURLE_OK;
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}
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@ -1014,8 +1022,8 @@ schannel_connect_step2(struct connectdata *conn, int sockindex)
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for(i = 0; i < 3; i++) {
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/* search for handshake tokens that need to be send */
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if(outbuf[i].BufferType == SECBUFFER_TOKEN && outbuf[i].cbBuffer > 0) {
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infof(data, "schannel: sending next handshake data: "
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"sending %lu bytes...\n", outbuf[i].cbBuffer);
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DEBUGF(infof(data, "schannel: sending next handshake data: "
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"sending %lu bytes...\n", outbuf[i].cbBuffer));
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/* send handshake token to server */
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result = Curl_write_plain(conn, conn->sock[sockindex],
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@ -1065,7 +1073,8 @@ schannel_connect_step2(struct connectdata *conn, int sockindex)
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/* check if there was additional remaining encrypted data */
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if(inbuf[1].BufferType == SECBUFFER_EXTRA && inbuf[1].cbBuffer > 0) {
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infof(data, "schannel: encrypted data length: %lu\n", inbuf[1].cbBuffer);
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DEBUGF(infof(data, "schannel: encrypted data length: %lu\n",
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inbuf[1].cbBuffer));
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/*
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There are two cases where we could be getting extra data here:
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1) If we're renegotiating a connection and the handshake is already
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@ -1104,7 +1113,7 @@ schannel_connect_step2(struct connectdata *conn, int sockindex)
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/* check if the handshake is complete */
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if(sspi_status == SEC_E_OK) {
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connssl->connecting_state = ssl_connect_3;
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infof(data, "schannel: SSL/TLS handshake complete\n");
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DEBUGF(infof(data, "schannel: SSL/TLS handshake complete\n"));
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}
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pubkey_ptr = SSL_IS_PROXY() ?
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@ -1190,7 +1199,7 @@ schannel_connect_step3(struct connectdata *conn, int sockindex)
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struct ssl_connect_data *connssl = &conn->ssl[sockindex];
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SECURITY_STATUS sspi_status = SEC_E_OK;
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CERT_CONTEXT *ccert_context = NULL;
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#ifndef CURL_DISABLE_VERBOSE_STRINGS
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#ifdef DEBUGBUILD
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const char * const hostname = SSL_IS_PROXY() ? conn->http_proxy.host.name :
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conn->host.name;
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#endif
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@ -1200,8 +1209,9 @@ schannel_connect_step3(struct connectdata *conn, int sockindex)
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DEBUGASSERT(ssl_connect_3 == connssl->connecting_state);
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infof(data, "schannel: SSL/TLS connection with %s port %hu (step 3/3)\n",
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hostname, conn->remote_port);
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DEBUGF(infof(data,
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"schannel: SSL/TLS connection with %s port %hu (step 3/3)\n",
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hostname, conn->remote_port));
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if(!BACKEND->cred)
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return CURLE_SSL_CONNECT_ERROR;
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@ -1266,7 +1276,8 @@ schannel_connect_step3(struct connectdata *conn, int sockindex)
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sockindex));
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if(incache) {
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if(old_cred != BACKEND->cred) {
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infof(data, "schannel: old credential handle is stale, removing\n");
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DEBUGF(infof(data,
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"schannel: old credential handle is stale, removing\n"));
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/* we're not taking old_cred ownership here, no refcount++ is needed */
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Curl_ssl_delsessionid(conn, (void *)old_cred);
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incache = FALSE;
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@ -1284,7 +1295,8 @@ schannel_connect_step3(struct connectdata *conn, int sockindex)
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else {
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/* this cred session is now also referenced by sessionid cache */
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BACKEND->cred->refcount++;
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infof(data, "schannel: stored credential handle in session cache\n");
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DEBUGF(infof(data,
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"schannel: stored credential handle in session cache\n"));
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}
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}
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Curl_ssl_sessionid_unlock(conn);
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@ -1615,7 +1627,6 @@ schannel_recv(struct connectdata *conn, int sockindex,
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* handled in the cleanup.
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*/
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infof(data, "schannel: client wants to read %zu bytes\n", len);
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*err = CURLE_OK;
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if(len && len <= BACKEND->decdata_offset) {
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@ -1660,12 +1671,13 @@ schannel_recv(struct connectdata *conn, int sockindex,
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BACKEND->encdata_buffer = reallocated_buffer;
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BACKEND->encdata_length = reallocated_length;
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size = BACKEND->encdata_length - BACKEND->encdata_offset;
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infof(data, "schannel: encdata_buffer resized %zu\n",
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BACKEND->encdata_length);
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DEBUGF(infof(data, "schannel: encdata_buffer resized %zu\n",
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BACKEND->encdata_length));
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}
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infof(data, "schannel: encrypted data buffer: offset %zu length %zu\n",
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BACKEND->encdata_offset, BACKEND->encdata_length);
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DEBUGF(infof(data,
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"schannel: encrypted data buffer: offset %zu length %zu\n",
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BACKEND->encdata_offset, BACKEND->encdata_length));
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/* read encrypted data from socket */
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*err = Curl_read_plain(conn->sock[sockindex],
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@ -1675,7 +1687,7 @@ schannel_recv(struct connectdata *conn, int sockindex,
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if(*err) {
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nread = -1;
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if(*err == CURLE_AGAIN)
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infof(data, "schannel: Curl_read_plain returned CURLE_AGAIN\n");
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;
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else if(*err == CURLE_RECV_ERROR)
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infof(data, "schannel: Curl_read_plain returned CURLE_RECV_ERROR\n");
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else
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@ -1683,17 +1695,18 @@ schannel_recv(struct connectdata *conn, int sockindex,
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}
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else if(nread == 0) {
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BACKEND->recv_connection_closed = true;
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infof(data, "schannel: server closed the connection\n");
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DEBUGF(infof(data, "schannel: server closed the connection\n"));
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}
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else if(nread > 0) {
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BACKEND->encdata_offset += (size_t)nread;
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BACKEND->encdata_is_incomplete = false;
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infof(data, "schannel: encrypted data got %zd\n", nread);
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DEBUGF(infof(data, "schannel: encrypted data got %zd\n", nread));
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}
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}
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infof(data, "schannel: encrypted data buffer: offset %zu length %zu\n",
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BACKEND->encdata_offset, BACKEND->encdata_length);
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DEBUGF(infof(data,
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"schannel: encrypted data buffer: offset %zu length %zu\n",
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BACKEND->encdata_offset, BACKEND->encdata_length));
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/* decrypt loop */
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while(BACKEND->encdata_offset > 0 && sspi_status == SEC_E_OK &&
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@ -1721,8 +1734,6 @@ schannel_recv(struct connectdata *conn, int sockindex,
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/* check for successfully decrypted data, even before actual
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renegotiation or shutdown of the connection context */
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if(inbuf[1].BufferType == SECBUFFER_DATA) {
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infof(data, "schannel: decrypted data length: %lu\n",
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inbuf[1].cbBuffer);
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/* increase buffer in order to fit the received amount of data */
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size = inbuf[1].cbBuffer > CURL_SCHANNEL_BUFFER_FREE_SIZE ?
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@ -1754,15 +1765,16 @@ schannel_recv(struct connectdata *conn, int sockindex,
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BACKEND->decdata_offset += size;
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}
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infof(data, "schannel: decrypted data added: %zu\n", size);
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infof(data, "schannel: decrypted data cached: offset %zu length %zu\n",
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BACKEND->decdata_offset, BACKEND->decdata_length);
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DEBUGF(infof(data, "schannel: decrypted data added: %zu\n", size));
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DEBUGF(infof(data,
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"schannel: decrypted cached: offset %zu length %zu\n",
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BACKEND->decdata_offset, BACKEND->decdata_length));
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}
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/* check for remaining encrypted data */
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if(inbuf[3].BufferType == SECBUFFER_EXTRA && inbuf[3].cbBuffer > 0) {
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infof(data, "schannel: encrypted data length: %lu\n",
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inbuf[3].cbBuffer);
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DEBUGF(infof(data, "schannel: encrypted data length: %lu\n",
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inbuf[3].cbBuffer));
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/* check if the remaining data is less than the total amount
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* and therefore begins after the already processed data
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@ -1776,8 +1788,9 @@ schannel_recv(struct connectdata *conn, int sockindex,
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BACKEND->encdata_offset = inbuf[3].cbBuffer;
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}
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infof(data, "schannel: encrypted data cached: offset %zu length %zu\n",
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BACKEND->encdata_offset, BACKEND->encdata_length);
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DEBUGF(infof(data,
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"schannel: encrypted cached: offset %zu length %zu\n",
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BACKEND->encdata_offset, BACKEND->encdata_length));
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}
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else {
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/* reset encrypted buffer offset, because there is no data remaining */
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@ -1838,15 +1851,17 @@ schannel_recv(struct connectdata *conn, int sockindex,
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}
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}
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infof(data, "schannel: encrypted data buffer: offset %zu length %zu\n",
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BACKEND->encdata_offset, BACKEND->encdata_length);
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DEBUGF(infof(data,
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"schannel: encrypted data buffer: offset %zu length %zu\n",
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BACKEND->encdata_offset, BACKEND->encdata_length));
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infof(data, "schannel: decrypted data buffer: offset %zu length %zu\n",
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BACKEND->decdata_offset, BACKEND->decdata_length);
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DEBUGF(infof(data,
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"schannel: decrypted data buffer: offset %zu length %zu\n",
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BACKEND->decdata_offset, BACKEND->decdata_length));
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cleanup:
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/* Warning- there is no guarantee the encdata state is valid at this point */
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infof(data, "schannel: schannel_recv cleanup\n");
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DEBUGF(infof(data, "schannel: schannel_recv cleanup\n"));
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/* Error if the connection has closed without a close_notify.
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Behavior here is a matter of debate. We don't want to be vulnerable to a
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@ -1879,10 +1894,10 @@ cleanup:
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memmove(BACKEND->decdata_buffer, BACKEND->decdata_buffer + size,
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BACKEND->decdata_offset - size);
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BACKEND->decdata_offset -= size;
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infof(data, "schannel: decrypted data returned %zu\n", size);
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infof(data, "schannel: decrypted data buffer: offset %zu length %zu\n",
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BACKEND->decdata_offset, BACKEND->decdata_length);
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DEBUGF(infof(data, "schannel: decrypted data returned %zu\n", size));
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DEBUGF(infof(data,
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"schannel: decrypted data buffer: offset %zu length %zu\n",
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BACKEND->decdata_offset, BACKEND->decdata_length));
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*err = CURLE_OK;
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return (ssize_t)size;
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}
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@ -2025,7 +2040,6 @@ static int Curl_schannel_shutdown(struct connectdata *conn, int sockindex)
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/* free SSPI Schannel API security context handle */
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if(BACKEND->ctxt) {
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infof(data, "schannel: clear security context handle\n");
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s_pSecFn->DeleteSecurityContext(&BACKEND->ctxt->ctxt_handle);
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Curl_safefree(BACKEND->ctxt);
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}
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