From: "Daniel P. Berrange" <berrange@redhat.com> QEMU has support for SASL auth for SPICE guests, but libvirt has no way to enable it. Following the example from VNC where it is globally enabled via qemu.conf Signed-off-by: Daniel P. Berrange <berrange@redhat.com> --- src/qemu/libvirtd_qemu.aug | 2 ++ src/qemu/qemu.conf | 16 ++++++++++++++++ src/qemu/qemu_command.c | 10 ++++++++++ src/qemu/qemu_conf.c | 3 +++ src/qemu/qemu_conf.h | 2 ++ src/qemu/test_libvirtd_qemu.aug.in | 2 ++ 6 files changed, 35 insertions(+) diff --git a/src/qemu/libvirtd_qemu.aug b/src/qemu/libvirtd_qemu.aug index cd13d53..118d4c7 100644 --- a/src/qemu/libvirtd_qemu.aug +++ b/src/qemu/libvirtd_qemu.aug @@ -38,6 +38,8 @@ module Libvirtd_qemu = | bool_entry "spice_tls" | str_entry "spice_tls_x509_cert_dir" | str_entry "spice_password" + | bool_entry "spice_sasl" + | str_entry "spice_sasl_dir" let nogfx_entry = bool_entry "nographics_allow_host_audio" diff --git a/src/qemu/qemu.conf b/src/qemu/qemu.conf index 5fd6263..6d4e99e 100644 --- a/src/qemu/qemu.conf +++ b/src/qemu/qemu.conf @@ -140,6 +140,22 @@ #spice_password = "XYZ12345" +# Enable use of SASL encryption on the SPICE server. This requires +# a SPICE client which supports the SASL protocol extension. +# +# It is necessary to configure /etc/sasl2/qemu.conf to choose +# the desired SASL plugin (eg, GSSPI for Kerberos) +# +#spice_sasl = 1 + +# The default SASL configuration file is located in /etc/sasl2/ +# When running libvirtd unprivileged, it may be desirable to +# override the configs in this location. Set this parameter to +# point to the directory, and create a qemu.conf in that location +# +#spice_sasl_dir = "/some/directory/sasl2" + + # By default, if no graphical front end is configured, libvirt will disable # QEMU audio output since directly talking to alsa/pulseaudio may not work # with various security settings. If you know what you're doing, enable diff --git a/src/qemu/qemu_command.c b/src/qemu/qemu_command.c index 91ca86a..5e4ebc8 100644 --- a/src/qemu/qemu_command.c +++ b/src/qemu/qemu_command.c @@ -7065,6 +7065,16 @@ qemuBuildGraphicsSPICECommandLine(virQEMUDriverConfigPtr cfg, virBufferAsprintf(&opt, "tls-port=%u", tlsPort); } + if (cfg->spiceSASL) { + virBufferAddLit(&opt, ",sasl"); + + if (cfg->spiceSASLdir) + virCommandAddEnvPair(cmd, "SASL_CONF_DIR", + cfg->spiceSASLdir); + + /* TODO: Support ACLs later */ + } + switch (virDomainGraphicsListenGetType(graphics, 0)) { case VIR_DOMAIN_GRAPHICS_LISTEN_TYPE_ADDRESS: listenAddr = virDomainGraphicsListenGetAddress(graphics, 0); diff --git a/src/qemu/qemu_conf.c b/src/qemu/qemu_conf.c index 1f57f72..41ca7a3 100644 --- a/src/qemu/qemu_conf.c +++ b/src/qemu/qemu_conf.c @@ -266,6 +266,7 @@ static void virQEMUDriverConfigDispose(void *obj) VIR_FREE(cfg->spiceTLSx509certdir); VIR_FREE(cfg->spiceListen); VIR_FREE(cfg->spicePassword); + VIR_FREE(cfg->spiceSASLdir); VIR_FREE(cfg->hugetlbfsMount); VIR_FREE(cfg->hugepagePath); @@ -379,6 +380,8 @@ int virQEMUDriverConfigLoadFile(virQEMUDriverConfigPtr cfg, GET_VALUE_BOOL("spice_tls", cfg->spiceTLS); GET_VALUE_STR("spice_tls_x509_cert_dir", cfg->spiceTLSx509certdir); + GET_VALUE_BOOL("spice_sasl", cfg->spiceSASL); + GET_VALUE_STR("spice_sasl_dir", cfg->spiceSASLdir); GET_VALUE_STR("spice_listen", cfg->spiceListen); GET_VALUE_STR("spice_password", cfg->spicePassword); diff --git a/src/qemu/qemu_conf.h b/src/qemu/qemu_conf.h index 206f2c6..cbd7053 100644 --- a/src/qemu/qemu_conf.h +++ b/src/qemu/qemu_conf.h @@ -111,6 +111,8 @@ struct _virQEMUDriverConfig { bool spiceTLS; char *spiceTLSx509certdir; + bool spiceSASL; + char *spiceSASLdir; char *spiceListen; char *spicePassword; diff --git a/src/qemu/test_libvirtd_qemu.aug.in b/src/qemu/test_libvirtd_qemu.aug.in index ea770dc..1a9fb20 100644 --- a/src/qemu/test_libvirtd_qemu.aug.in +++ b/src/qemu/test_libvirtd_qemu.aug.in @@ -15,6 +15,8 @@ module Test_libvirtd_qemu = { "spice_tls" = "1" } { "spice_tls_x509_cert_dir" = "/etc/pki/libvirt-spice" } { "spice_password" = "XYZ12345" } +{ "spice_sasl" = "1" } +{ "spice_sasl_dir" = "/some/directory/sasl2" } { "nographics_allow_host_audio" = "1" } { "remote_display_port_min" = "5900" } { "remote_display_port_max" = "65535" } -- 1.8.3.1