1 /* 2 * QEMU VNC display driver: SASL auth protocol 3 * 4 * Copyright (C) 2009 Red Hat, Inc 5 * 6 * Permission is hereby granted, free of charge, to any person obtaining a copy 7 * of this software and associated documentation files (the "Software"), to deal 8 * in the Software without restriction, including without limitation the rights 9 * to use, copy, modify, merge, publish, distribute, sublicense, and/or sell 10 * copies of the Software, and to permit persons to whom the Software is 11 * furnished to do so, subject to the following conditions: 12 * 13 * The above copyright notice and this permission notice shall be included in 14 * all copies or substantial portions of the Software. 15 * 16 * THE SOFTWARE IS PROVIDED "AS IS", WITHOUT WARRANTY OF ANY KIND, EXPRESS OR 17 * IMPLIED, INCLUDING BUT NOT LIMITED TO THE WARRANTIES OF MERCHANTABILITY, 18 * FITNESS FOR A PARTICULAR PURPOSE AND NONINFRINGEMENT. IN NO EVENT SHALL 19 * THE AUTHORS OR COPYRIGHT HOLDERS BE LIABLE FOR ANY CLAIM, DAMAGES OR OTHER 20 * LIABILITY, WHETHER IN AN ACTION OF CONTRACT, TORT OR OTHERWISE, ARISING FROM, 21 * OUT OF OR IN CONNECTION WITH THE SOFTWARE OR THE USE OR OTHER DEALINGS IN 22 * THE SOFTWARE. 23 */ 24 25 #ifndef QEMU_VNC_AUTH_SASL_H 26 #define QEMU_VNC_AUTH_SASL_H 27 28 #include <sasl/sasl.h> 29 30 typedef struct VncStateSASL VncStateSASL; 31 typedef struct VncDisplaySASL VncDisplaySASL; 32 33 #include "qemu/main-loop.h" 34 #include "authz/base.h" 35 36 struct VncStateSASL { 37 sasl_conn_t *conn; 38 /* If we want to negotiate an SSF layer with client */ 39 bool wantSSF; 40 /* If we are now running the SSF layer */ 41 bool runSSF; 42 /* 43 * If this is non-zero, then wait for that many bytes 44 * to be written plain, before switching to SSF encoding 45 * This allows the VNC auth result to finish being 46 * written in plain. 47 */ 48 unsigned int waitWriteSSF; 49 50 /* 51 * Buffering encoded data to allow more clear data 52 * to be stuffed onto the output buffer 53 */ 54 const uint8_t *encoded; 55 unsigned int encodedLength; 56 unsigned int encodedRawLength; 57 unsigned int encodedOffset; 58 char *username; 59 char *mechlist; 60 }; 61 62 struct VncDisplaySASL { 63 QAuthZ *authz; 64 char *authzid; 65 }; 66 67 void vnc_sasl_client_cleanup(VncState *vs); 68 69 size_t vnc_client_read_sasl(VncState *vs); 70 size_t vnc_client_write_sasl(VncState *vs); 71 72 void start_auth_sasl(VncState *vs); 73 74 #endif /* QEMU_VNC_AUTH_SASL_H */ 75