diff options
| -rw-r--r-- | src/interfaces/hostnamed/hostnamed.c | 334 | ||||
| -rw-r--r-- | src/interfaces/hostnamed/hostnamed.h | 1 |
2 files changed, 331 insertions, 4 deletions
diff --git a/src/interfaces/hostnamed/hostnamed.c b/src/interfaces/hostnamed/hostnamed.c index de06bf9..162cf5d 100644 --- a/src/interfaces/hostnamed/hostnamed.c +++ b/src/interfaces/hostnamed/hostnamed.c @@ -194,7 +194,76 @@ on_handle_set_static_hostname(Hostname1 *hn1_passed_interf, GDBusMethodInvocation *invoc, const gchar *greet, gpointer data) { - return FALSE; + + GVariant *params; + gchar *proposed_static_hostname, *valid_static_hostname_buf; + const gchar *bus_name; + gboolean policykit_auth, ret, try_to_set; + size_t check_length; + check_auth_result is_authed; + + proposed_static_hostname = NULL; + ret = try_to_set = FALSE; + + params = g_dbus_method_invocation_get_parameters(invoc); + g_variant_get(params, "(sb)", &proposed_static_hostname, &policykit_auth); + bus_name = g_dbus_method_invocation_get_sender(invoc); + + /* verify caller has correct permissions via polkit */ + is_authed = polkit_try_auth(bus_name, "org.freedesktop.hostname1.SetStaticHostname", policykit_auth); + + switch(is_authed) { + + case AUTHORIZED_NATIVELY: + case AUTHORIZED_BY_PROMPT: + try_to_set = TRUE; + break; + + case UNAUTHORIZED_NATIVELY: + case UNAUTHORIZED_FAILED_PROMPT: + g_dbus_method_invocation_return_dbus_error(invoc, "org.freedesktop.hostname1.Error.EACCES", "Insufficient permissions to set static hostname."); + break; + + case ERROR_BADBUS: + g_dbus_method_invocation_return_dbus_error(invoc, "org.freedesktop.hostname1.Error.EFAULT", "Provided bus name is invalid."); + break; + + case ERROR_BADACTION: + g_dbus_method_invocation_return_dbus_error(invoc, "org.freedesktop.hostname1.Error.EFAULT", "Provided action ID is invalid."); + break; + + case ERROR_GENERIC: + default: + g_dbus_method_invocation_return_dbus_error(invoc, "org.freedesktop.hostname1.Error.ECANCELED", "Failed to set static hostname for unknown reason."); + break; + } + + /* verify passed hostname's validity */ + if(try_to_set && proposed_static_hostname && (valid_static_hostname_buf = g_hostname_to_ascii(proposed_static_hostname))) { + + check_length = strnlen(valid_static_hostname_buf, MAXHOSTNAMELEN + 1); + + if(check_length > MAXHOSTNAMELEN) { + + g_dbus_method_invocation_return_dbus_error(invoc, "org.freedesktop.hostname1.Error.ENAMETOOLONG", "Static hostname string exceeded maximum length."); + g_free(valid_static_hostname_buf); + + } else if(!(STATIC_HOSTNAME = valid_static_hostname_buf)) { + + g_dbus_method_invocation_return_dbus_error(invoc, "org.freedesktop.hostname1.Error.ECANCELED", "Failed to set static hostname for unknown reason."); + g_free(valid_static_hostname_buf); + + } else { + + g_strdelimit(STATIC_HOSTNAME, " ", '-'); + hostname1_set_static_hostname(hn1_passed_interf, STATIC_HOSTNAME); + g_ptr_array_add(hostnamed_freeable, valid_static_hostname_buf); + ret = TRUE; + hostname1_complete_set_static_hostname(hn1_passed_interf, invoc); + } + } + + return ret; } static gboolean @@ -202,7 +271,97 @@ on_handle_set_pretty_hostname(Hostname1 *hn1_passed_interf, GDBusMethodInvocation *invoc, const gchar *greet, gpointer data) { - return FALSE; + + GVariant *params; + gchar *proposed_pretty_hostname, *valid_pretty_hostname_buf, *computed_static_hostname; + const gchar *bus_name; + gboolean policykit_auth, ret, try_to_set; + size_t check_length; + check_auth_result is_authed; + GKeyFile *config; + + config = g_key_file_new(); + proposed_pretty_hostname = NULL; + ret = try_to_set = FALSE; + + params = g_dbus_method_invocation_get_parameters(invoc); + g_variant_get(params, "(sb)", &proposed_pretty_hostname, &policykit_auth); + bus_name = g_dbus_method_invocation_get_sender(invoc); + + /* verify caller has correct permissions via polkit */ + is_authed = polkit_try_auth(bus_name, "org.freedesktop.hostname1.SetPrettyHostname", policykit_auth); + + switch(is_authed) { + + case AUTHORIZED_NATIVELY: + case AUTHORIZED_BY_PROMPT: + try_to_set = TRUE; + break; + + case UNAUTHORIZED_NATIVELY: + case UNAUTHORIZED_FAILED_PROMPT: + g_dbus_method_invocation_return_dbus_error(invoc, "org.freedesktop.hostname1.Error.EACCES", "Insufficient permissions to set pretty hostname."); + break; + + case ERROR_BADBUS: + g_dbus_method_invocation_return_dbus_error(invoc, "org.freedesktop.hostname1.Error.EFAULT", "Provided bus name is invalid."); + break; + + case ERROR_BADACTION: + g_dbus_method_invocation_return_dbus_error(invoc, "org.freedesktop.hostname1.Error.EFAULT", "Provided action ID is invalid."); + break; + + case ERROR_GENERIC: + default: + g_dbus_method_invocation_return_dbus_error(invoc, "org.freedesktop.hostname1.Error.ECANCELED", "Failed to set pretty hostname for unknown reason."); + break; + } + + /* verify passed hostname's validity */ + if(try_to_set && proposed_pretty_hostname && (valid_pretty_hostname_buf = g_locale_to_utf8(proposed_pretty_hostname, -1, 0, 0, NULL))) { + + check_length = strnlen(valid_pretty_hostname_buf, MAXHOSTNAMELEN + 1); + + if(check_length > MAXHOSTNAMELEN) { + + g_dbus_method_invocation_return_dbus_error(invoc, "org.freedesktop.hostname1.Error.ENAMETOOLONG", "Static hostname string exceeded maximum length."); + g_free(valid_pretty_hostname_buf); + + } else if(!(PRETTY_HOSTNAME = valid_pretty_hostname_buf)) { + + g_dbus_method_invocation_return_dbus_error(invoc, "org.freedesktop.hostname1.Error.ECANCELED", "Failed to set pretty hostname for unknown reason."); + g_free(valid_pretty_hostname_buf); + + } else { + + hostname1_set_pretty_hostname(hn1_passed_interf, PRETTY_HOSTNAME); + g_ptr_array_add(hostnamed_freeable, valid_pretty_hostname_buf); + hostname1_complete_set_pretty_hostname(hn1_passed_interf, invoc); + ret = TRUE; + + if(g_key_file_load_from_file(config, "/etc/systemd_compat.conf", G_KEY_FILE_NONE, NULL)) { + + g_key_file_set_string(config, "hostnamed", "PrettyHostname", valid_pretty_hostname_buf); + + if((computed_static_hostname = g_hostname_to_ascii(PRETTY_HOSTNAME))) { + + g_strdelimit(computed_static_hostname, " ", '-'); + hostname1_set_static_hostname(hn1_passed_interf, computed_static_hostname); + STATIC_HOSTNAME = computed_static_hostname; + g_ptr_array_add(hostnamed_freeable, computed_static_hostname); + g_key_file_set_string(config, "hostnamed", "StaticHostname", computed_static_hostname); + + } else + g_free(computed_static_hostname); + } + + } + } + + g_key_file_save_to_file(config, "/etc/systemd_compat.conf", NULL); + g_key_file_unref(config); + + return ret; } static gboolean @@ -210,7 +369,86 @@ on_handle_set_chassis(Hostname1 *hn1_passed_interf, GDBusMethodInvocation *invoc, const gchar *greet, gpointer data) { - return FALSE; + + GVariant *params; + gchar *proposed_chassis_name, *valid_chassis_name_buf; + const gchar *bus_name; + gboolean policykit_auth, ret, try_to_set; + check_auth_result is_authed; + GKeyFile *config; + + config = g_key_file_new(); + proposed_chassis_name = NULL; + ret = try_to_set = FALSE; + valid_chassis_name_buf = (gchar *)g_malloc0(8192); + + params = g_dbus_method_invocation_get_parameters(invoc); + g_variant_get(params, "(sb)", &proposed_chassis_name, &policykit_auth); + bus_name = g_dbus_method_invocation_get_sender(invoc); + + g_strlcpy(valid_chassis_name_buf, proposed_chassis_name, (gsize)64); + + /* verify caller has correct permissions via polkit */ + is_authed = polkit_try_auth(bus_name, "org.freedesktop.hostname1.SetChassis", policykit_auth); + + switch(is_authed) { + + case AUTHORIZED_NATIVELY: + case AUTHORIZED_BY_PROMPT: + try_to_set = TRUE; + break; + + case UNAUTHORIZED_NATIVELY: + case UNAUTHORIZED_FAILED_PROMPT: + g_dbus_method_invocation_return_dbus_error(invoc, "org.freedesktop.hostname1.Error.EACCES", "Insufficient permissions to set chassis type."); + break; + + case ERROR_BADBUS: + g_dbus_method_invocation_return_dbus_error(invoc, "org.freedesktop.hostname1.Error.EFAULT", "Provided bus name is invalid."); + break; + + case ERROR_BADACTION: + g_dbus_method_invocation_return_dbus_error(invoc, "org.freedesktop.hostname1.Error.EFAULT", "Provided action ID is invalid."); + break; + + case ERROR_GENERIC: + default: + g_dbus_method_invocation_return_dbus_error(invoc, "org.freedesktop.hostname1.Error.ECANCELED", "Failed to set chassis type for unknown reason."); + break; + } + + /* verify passed chassis type's validity */ + if(try_to_set && proposed_chassis_name) { + + if(!is_valid_chassis_type(proposed_chassis_name)) { + + g_dbus_method_invocation_return_dbus_error(invoc, "org.freedesktop.hostname1.Error.ECANCELED", "Chassis type must be 'desktop', 'laptop', 'server', 'tablet', 'handset', 'vm', or 'container'."); + g_free(valid_chassis_name_buf); + + } else if(!(CHASSIS = valid_chassis_name_buf)) { + + g_dbus_method_invocation_return_dbus_error(invoc, "org.freedesktop.hostname1.Error.ECANCELED", "Failed to set chassis type for unknown reason."); + g_free(valid_chassis_name_buf); + + } else { + + hostname1_set_chassis(hn1_passed_interf, CHASSIS); + g_ptr_array_add(hostnamed_freeable, valid_chassis_name_buf); + hostname1_complete_set_chassis(hn1_passed_interf, invoc); + + if(g_key_file_load_from_file(config, "/etc/systemd_compat.conf", G_KEY_FILE_NONE, NULL)) { + + ret = TRUE; + g_key_file_set_string(config, "hostnamed", "ChassisType", valid_chassis_name_buf); + + } + } + } + + g_key_file_save_to_file(config, "/etc/systemd_compat.conf", NULL); + g_key_file_unref(config); + + return ret; } static gboolean @@ -218,7 +456,80 @@ on_handle_set_icon_name(Hostname1 *hn1_passed_interf, GDBusMethodInvocation *invoc, const gchar *greet, gpointer data) { - return FALSE; + + GVariant *params; + gchar *proposed_icon_name, *valid_icon_name_buf; + const gchar *bus_name; + gboolean policykit_auth, ret, try_to_set; + check_auth_result is_authed; + GKeyFile *config; + + config = g_key_file_new(); + proposed_icon_name = NULL; + ret = try_to_set = FALSE; + + params = g_dbus_method_invocation_get_parameters(invoc); + g_variant_get(params, "(sb)", &proposed_icon_name, &policykit_auth); + bus_name = g_dbus_method_invocation_get_sender(invoc); + + /* verify caller has correct permissions via polkit */ + is_authed = polkit_try_auth(bus_name, "org.freedesktop.hostname1.SetIconName", policykit_auth); + + switch(is_authed) { + + case AUTHORIZED_NATIVELY: + case AUTHORIZED_BY_PROMPT: + try_to_set = TRUE; + break; + + case UNAUTHORIZED_NATIVELY: + case UNAUTHORIZED_FAILED_PROMPT: + g_dbus_method_invocation_return_dbus_error(invoc, "org.freedesktop.hostname1.Error.EACCES", "Insufficient permissions to set icon name."); + break; + + case ERROR_BADBUS: + g_dbus_method_invocation_return_dbus_error(invoc, "org.freedesktop.hostname1.Error.EFAULT", "Provided bus name is invalid."); + break; + + case ERROR_BADACTION: + g_dbus_method_invocation_return_dbus_error(invoc, "org.freedesktop.hostname1.Error.EFAULT", "Provided action ID is invalid."); + break; + + case ERROR_GENERIC: + default: + g_dbus_method_invocation_return_dbus_error(invoc, "org.freedesktop.hostname1.Error.ECANCELED", "Failed to set icon name for unknown reason."); + break; + } + + /* verify passed chassis type's validity */ + if(try_to_set && proposed_icon_name) { + + g_strlcpy(valid_icon_name_buf, proposed_icon_name, (gsize)64); + + if(!(ICON = valid_icon_name_buf)) { + + g_dbus_method_invocation_return_dbus_error(invoc, "org.freedesktop.hostname1.Error.ECANCELED", "Failed to set icon name for unknown reason."); + g_free(valid_icon_name_buf); + + } else { + + hostname1_set_icon_name(hn1_passed_interf, ICON); + g_ptr_array_add(hostnamed_freeable, valid_icon_name_buf); + hostname1_complete_set_icon_name(hn1_passed_interf, invoc); + + if(g_key_file_load_from_file(config, "/etc/systemd_compat.conf", G_KEY_FILE_NONE, NULL)) { + + ret = TRUE; + g_key_file_set_string(config, "hostnamed", "IconName", valid_icon_name_buf); + + } + } + } + + g_key_file_save_to_file(config, "/etc/systemd_compat.conf", NULL); + g_key_file_unref(config); + + return ret; } /* note: all hostnamed/hostname1's properties are read-only, @@ -698,3 +1009,18 @@ gboolean up_native_get_sensordev(const char * id, struct sensordev * snsrdev) { return FALSE; } + +static gboolean is_valid_chassis_type(gchar *test) { + + if(!g_strcmp0(test, "desktop") || + !g_strcmp0(test, "laptop") || + !g_strcmp0(test, "server") || + !g_strcmp0(test, "tablet") || + !g_strcmp0(test, "handset") || + !g_strcmp0(test, "vm") || + !g_strcmp0(test, "container") || + !g_strcmp0(test, "")) + return TRUE; + + return FALSE; +} diff --git a/src/interfaces/hostnamed/hostnamed.h b/src/interfaces/hostnamed/hostnamed.h index 8fc523e..c79b57a 100644 --- a/src/interfaces/hostnamed/hostnamed.h +++ b/src/interfaces/hostnamed/hostnamed.h @@ -26,3 +26,4 @@ gboolean up_native_is_laptop(); gboolean is_server(gchar *arch); gboolean set_uname_properties(); gboolean set_names(); +static gboolean is_valid_chassis_type(gchar *test); |