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X-Received-From: 2607:f8b0:4864:20::c42 Subject: [Qemu-devel] [PULL 08/25] ui/vnc: Split out authentication_failed X-BeenThere: qemu-devel@nongnu.org X-Mailman-Version: 2.1.21 Precedence: list List-Id: List-Unsubscribe: , List-Archive: List-Post: List-Help: List-Subscribe: , Cc: peter.maydell@linaro.org Errors-To: qemu-devel-bounces+importer=patchew.org@nongnu.org Sender: "Qemu-devel" X-ZohoMail-DKIM: fail (Header signature does not verify) There were 3 copies of this code, one of which used the wrong data size for the failure indicator. Reviewed-by: Laurent Vivier Reviewed-by: Philippe Mathieu-Daud=C3=A9 Reviewed-by: Gerd Hoffmann Reviewed-by: Daniel P. Berrang=C3=A9 Signed-off-by: Richard Henderson --- ui/vnc.c | 37 +++++++++++++++---------------------- 1 file changed, 15 insertions(+), 22 deletions(-) diff --git a/ui/vnc.c b/ui/vnc.c index 1871422e1d..785edf3af1 100644 --- a/ui/vnc.c +++ b/ui/vnc.c @@ -2535,6 +2535,18 @@ void start_client_init(VncState *vs) vnc_read_when(vs, protocol_client_init, 1); } =20 +static void authentication_failed(VncState *vs) +{ + vnc_write_u32(vs, 1); /* Reject auth */ + if (vs->minor >=3D 8) { + static const char err[] =3D "Authentication failed"; + vnc_write_u32(vs, sizeof(err)); + vnc_write(vs, err, sizeof(err)); + } + vnc_flush(vs); + vnc_client_error(vs); +} + static void make_challenge(VncState *vs) { int i; @@ -2609,14 +2621,7 @@ static int protocol_client_auth_vnc(VncState *vs, ui= nt8_t *data, size_t len) return 0; =20 reject: - vnc_write_u32(vs, 1); /* Reject auth */ - if (vs->minor >=3D 8) { - static const char err[] =3D "Authentication failed"; - vnc_write_u32(vs, sizeof(err)); - vnc_write(vs, err, sizeof(err)); - } - vnc_flush(vs); - vnc_client_error(vs); + authentication_failed(vs); qcrypto_cipher_free(cipher); return 0; } @@ -2638,13 +2643,7 @@ static int protocol_client_auth(VncState *vs, uint8_= t *data, size_t len) * must pick the one we sent. Verify this */ if (data[0] !=3D vs->auth) { /* Reject auth */ trace_vnc_auth_reject(vs, vs->auth, (int)data[0]); - vnc_write_u32(vs, 1); - if (vs->minor >=3D 8) { - static const char err[] =3D "Authentication failed"; - vnc_write_u32(vs, sizeof(err)); - vnc_write(vs, err, sizeof(err)); - } - vnc_client_error(vs); + authentication_failed(vs); } else { /* Accept requested auth */ trace_vnc_auth_start(vs, vs->auth); switch (vs->auth) { @@ -2673,13 +2672,7 @@ static int protocol_client_auth(VncState *vs, uint8_= t *data, size_t len) =20 default: /* Should not be possible, but just in case */ trace_vnc_auth_fail(vs, vs->auth, "Unhandled auth method", ""); - vnc_write_u8(vs, 1); - if (vs->minor >=3D 8) { - static const char err[] =3D "Authentication failed"; - vnc_write_u32(vs, sizeof(err)); - vnc_write(vs, err, sizeof(err)); - } - vnc_client_error(vs); + authentication_failed(vs); } } return 0; --=20 2.17.1