build: move "libnm-core/" to "src/" and split it

"libnm-core/" is rather complicated. It provides a static library that
is linked into libnm.so and NetworkManager. It also contains public
headers (like "nm-setting.h") which are part of public libnm API.

Then we have helper libraries ("libnm-core/nm-libnm-core-*/") which
only rely on public API of libnm-core, but are themself static
libraries that can be used by anybody who uses libnm-core. And
"libnm-core/nm-libnm-core-intern" is used by libnm-core itself.

Move "libnm-core/" to "src/". But also split it in different
directories so that they have a clearer purpose.

The goal is to have a flat directory hierarchy. The "src/libnm-core*/"
directories correspond to the different modules (static libraries and set
of headers that we have). We have different kinds of such modules because
of how we combine various code together. The directory layout now reflects
this.

1 files changed, 378 insertions, 0 deletions

diff --git a/src/libnm-core-impl/nm-setting-ethtool.c b/src/libnm-core-impl/nm-setting-ethtool.c
new file mode 100644
index 0000000000..db459697db
--- /dev/null
+++ b/src/libnm-core-impl/nm-setting-ethtool.c
@@ -0,0 +1,378 @@
+/* SPDX-License-Identifier: LGPL-2.1-or-later */
+/*
+ * Copyright (C) 2018 Red Hat, Inc.
+ */
+
+#include "libnm-core-impl/nm-default-libnm-core.h"
+
+#include "nm-setting-ethtool.h"
+
+#include "nm-setting-private.h"
+#include "nm-base/nm-ethtool-base.h"
+
+/*****************************************************************************/
+
+/**
+ * SECTION:nm-setting-ethtool
+ * @short_description: Describes connection properties for ethtool related options
+ *
+ * The #NMSettingEthtool object is a #NMSetting subclass that describes properties
+ * to control network driver and hardware settings.
+ **/
+
+/*****************************************************************************/
+
+static const GVariantType *
+get_variant_type_from_ethtool_id(NMEthtoolID ethtool_id)
+{
+    if (nm_ethtool_id_is_feature(ethtool_id))
+        return G_VARIANT_TYPE_BOOLEAN;
+
+    if (nm_ethtool_id_is_coalesce(ethtool_id) || nm_ethtool_id_is_ring(ethtool_id))
+        return G_VARIANT_TYPE_UINT32;
+
+    return NULL;
+}
+
+/*****************************************************************************/
+
+/**
+ * nm_ethtool_optname_is_feature:
+ * @optname: (allow-none): the option name to check
+ *
+ * Checks whether @optname is a valid option name for an offload feature.
+ *
+ * %Returns: %TRUE, if @optname is valid
+ *
+ * Since: 1.20
+ *
+ * Note that nm_ethtool_optname_is_feature() was first added to the libnm header files
+ * in 1.14.0 but forgot to actually add to the library. This happened belatedly in 1.20.0 and
+ * the stable versions 1.18.2, 1.16.4 and 1.14.8 (with linker version "libnm_1_14_8").
+ */
+gboolean
+nm_ethtool_optname_is_feature(const char *optname)
+{
+    return optname && nm_ethtool_id_is_feature(nm_ethtool_id_get_by_name(optname));
+}
+
+/**
+ * nm_ethtool_optname_is_coalesce:
+ * @optname: (allow-none): the option name to check
+ *
+ * Checks whether @optname is a valid option name for a coalesce setting.
+ *
+ * %Returns: %TRUE, if @optname is valid
+ *
+ * Since: 1.26
+ */
+gboolean
+nm_ethtool_optname_is_coalesce(const char *optname)
+{
+    return optname && nm_ethtool_id_is_coalesce(nm_ethtool_id_get_by_name(optname));
+}
+
+/**
+ * nm_ethtool_optname_is_ring:
+ * @optname: (allow-none): the option name to check
+ *
+ * Checks whether @optname is a valid option name for a ring setting.
+ *
+ * %Returns: %TRUE, if @optname is valid
+ *
+ * Since: 1.26
+ */
+gboolean
+nm_ethtool_optname_is_ring(const char *optname)
+{
+    return optname && nm_ethtool_id_is_ring(nm_ethtool_id_get_by_name(optname));
+}
+
+/*****************************************************************************/
+
+/**
+ * NMSettingEthtool:
+ *
+ * Ethtool Ethernet Settings
+ *
+ * Since: 1.14
+ */
+struct _NMSettingEthtool {
+    NMSetting parent;
+};
+
+struct _NMSettingEthtoolClass {
+    NMSettingClass parent;
+};
+
+G_DEFINE_TYPE(NMSettingEthtool, nm_setting_ethtool, NM_TYPE_SETTING)
+
+#define NM_SETTING_ETHTOOL_GET_PRIVATE(self) \
+    _NM_GET_PRIVATE(self, NMSettingEthtool, NM_IS_SETTING_ETHTOOL, NMSetting)
+
+/*****************************************************************************/
+
+/**
+ * nm_setting_ethtool_get_feature:
+ * @setting: the #NMSettingEthtool
+ * @optname: option name of the offload feature to get
+ *
+ * Gets and offload feature setting. Returns %NM_TERNARY_DEFAULT if the
+ * feature is not set.
+ *
+ * Note that @optname must be a valid name for a feature, according to
+ * nm_ethtool_optname_is_feature().
+ *
+ * Returns: a #NMTernary value indicating whether the offload feature
+ *   is enabled, disabled, or left untouched.
+ *
+ * Since: 1.14
+ *
+ * Deprecated: 1.26: use nm_setting_option_get_boolean() instead.
+ */
+NMTernary
+nm_setting_ethtool_get_feature(NMSettingEthtool *setting, const char *optname)
+{
+    gboolean v;
+
+    g_return_val_if_fail(NM_IS_SETTING_ETHTOOL(setting), NM_TERNARY_DEFAULT);
+    g_return_val_if_fail(optname && nm_ethtool_optname_is_feature(optname), NM_TERNARY_DEFAULT);
+
+    if (!nm_setting_option_get_boolean(NM_SETTING(setting), optname, &v))
+        return NM_TERNARY_DEFAULT;
+    return v ? NM_TERNARY_TRUE : NM_TERNARY_FALSE;
+}
+
+/**
+ * nm_setting_ethtool_set_feature:
+ * @setting: the #NMSettingEthtool
+ * @optname: option name of the offload feature to get
+ * @value: the new value to set. The special value %NM_TERNARY_DEFAULT
+ *   means to clear the offload feature setting.
+ *
+ * Sets and offload feature setting.
+ *
+ * Note that @optname must be a valid name for a feature, according to
+ * nm_ethtool_optname_is_feature().
+ *
+ * Since: 1.14
+ *
+ * Deprecated: 1.26: use nm_setting_option_set() or nm_setting_option_set_boolean() instead.
+ */
+void
+nm_setting_ethtool_set_feature(NMSettingEthtool *setting, const char *optname, NMTernary value)
+{
+    g_return_if_fail(NM_IS_SETTING_ETHTOOL(setting));
+    g_return_if_fail(optname && nm_ethtool_optname_is_feature(optname));
+    g_return_if_fail(NM_IN_SET(value, NM_TERNARY_DEFAULT, NM_TERNARY_FALSE, NM_TERNARY_TRUE));
+
+    if (value == NM_TERNARY_DEFAULT)
+        nm_setting_option_set(NM_SETTING(setting), optname, NULL);
+    else
+        nm_setting_option_set_boolean(NM_SETTING(setting), optname, (value != NM_TERNARY_FALSE));
+}
+
+/**
+ * nm_setting_ethtool_clear_features:
+ * @setting: the #NMSettingEthtool
+ *
+ * Clears all offload features settings
+ *
+ * Since: 1.14
+ *
+ * Deprecated: 1.26: use nm_setting_option_clear_by_name() with nm_ethtool_optname_is_feature() predicate instead.
+ */
+void
+nm_setting_ethtool_clear_features(NMSettingEthtool *setting)
+{
+    g_return_if_fail(NM_IS_SETTING_ETHTOOL(setting));
+
+    nm_setting_option_clear_by_name(NM_SETTING(setting), nm_ethtool_optname_is_feature);
+}
+
+/*****************************************************************************/
+
+guint
+nm_setting_ethtool_init_features(
+    NMSettingEthtool *setting,
+    NMOptionBool *    requested /* indexed by NMEthtoolID - _NM_ETHTOOL_ID_FEATURE_FIRST */)
+{
+    GHashTable *   hash;
+    GHashTableIter iter;
+    guint          i;
+    guint          n_req = 0;
+    const char *   name;
+    GVariant *     variant;
+
+    nm_assert(NM_IS_SETTING_ETHTOOL(setting));
+    nm_assert(requested);
+
+    for (i = 0; i < _NM_ETHTOOL_ID_FEATURE_NUM; i++)
+        requested[i] = NM_OPTION_BOOL_DEFAULT;
+
+    hash = _nm_setting_option_hash(NM_SETTING(setting), FALSE);
+    if (!hash)
+        return 0;
+
+    g_hash_table_iter_init(&iter, hash);
+    while (g_hash_table_iter_next(&iter, (gpointer *) &name, (gpointer *) &variant)) {
+        NMEthtoolID ethtool_id = nm_ethtool_id_get_by_name(name);
+
+        if (!nm_ethtool_id_is_feature(ethtool_id))
+            continue;
+        if (!g_variant_is_of_type(variant, G_VARIANT_TYPE_BOOLEAN))
+            continue;
+
+        requested[_NM_ETHTOOL_ID_FEATURE_AS_IDX(ethtool_id)] =
+            g_variant_get_boolean(variant) ? NM_OPTION_BOOL_TRUE : NM_OPTION_BOOL_FALSE;
+        n_req++;
+    }
+
+    return n_req;
+}
+
+/*****************************************************************************/
+
+/**
+ * nm_setting_ethtool_get_optnames:
+ * @setting: the #NMSettingEthtool instance.
+ * @out_length: (out) (optional): return location for the number of keys returned, or %NULL
+ *
+ * This returns all options names that are set. This includes the feature names
+ * like %NM_ETHTOOL_OPTNAME_FEATURE_GRO. See nm_ethtool_optname_is_feature() to
+ * check whether the option name is valid for offload features.
+ *
+ * Returns: (array zero-terminated=1) (transfer container): list of set option
+ *   names or %NULL if no options are set. The option names are still owned by
+ *   @setting and may get invalidated when @setting gets modified.
+ *
+ * Since: 1.20
+ *
+ * Deprecated: 1.26: use nm_setting_option_get_all_names() instead.
+ */
+const char **
+nm_setting_ethtool_get_optnames(NMSettingEthtool *setting, guint *out_length)
+{
+    const char *const *names;
+    guint              len = 0;
+
+    g_return_val_if_fail(NM_IS_SETTING_ETHTOOL(setting), NULL);
+
+    names = nm_setting_option_get_all_names(NM_SETTING(setting), &len);
+    NM_SET_OUT(out_length, len);
+    return len > 0 ? nm_memdup(names, sizeof(names[0]) * (((gsize) len) + 1u)) : NULL;
+}
+
+/*****************************************************************************/
+
+static gboolean
+verify(NMSetting *setting, NMConnection *connection, GError **error)
+{
+    const char *const *optnames;
+    GVariant *const *  variants;
+    guint              len;
+    guint              i;
+
+    len = _nm_setting_option_get_all(setting, &optnames, &variants);
+
+    for (i = 0; i < len; i++) {
+        const char *        optname = optnames[i];
+        GVariant *          variant = variants[i];
+        const GVariantType *variant_type;
+        NMEthtoolID         ethtool_id;
+
+        ethtool_id   = nm_ethtool_id_get_by_name(optname);
+        variant_type = get_variant_type_from_ethtool_id(ethtool_id);
+
+        if (!variant_type) {
+            g_set_error_literal(error,
+                                NM_CONNECTION_ERROR,
+                                NM_CONNECTION_ERROR_INVALID_PROPERTY,
+                                _("unsupported ethtool setting"));
+            g_prefix_error(error, "%s.%s: ", NM_SETTING_ETHTOOL_SETTING_NAME, optname);
+            return FALSE;
+        }
+
+        if (!g_variant_is_of_type(variant, variant_type)) {
+            g_set_error_literal(error,
+                                NM_CONNECTION_ERROR,
+                                NM_CONNECTION_ERROR_INVALID_PROPERTY,
+                                _("setting has invalid variant type"));
+            g_prefix_error(error, "%s.%s: ", NM_SETTING_ETHTOOL_SETTING_NAME, optname);
+            return FALSE;
+        }
+
+        if (NM_IN_SET(ethtool_id,
+                      NM_ETHTOOL_ID_COALESCE_ADAPTIVE_RX,
+                      NM_ETHTOOL_ID_COALESCE_ADAPTIVE_TX)) {
+            if (!NM_IN_SET(g_variant_get_uint32(variant), 0, 1)) {
+                g_set_error_literal(error,
+                                    NM_CONNECTION_ERROR,
+                                    NM_CONNECTION_ERROR_INVALID_PROPERTY,
+                                    _("coalesce option must be either 0 or 1"));
+                g_prefix_error(error, "%s.%s: ", NM_SETTING_ETHTOOL_SETTING_NAME, optname);
+                return FALSE;
+            }
+        }
+    }
+
+    return TRUE;
+}
+
+/*****************************************************************************/
+
+static const GVariantType *
+get_variant_type(const NMSettInfoSetting *sett_info, const char *name, GError **error)
+{
+    const GVariantType *variant_type;
+
+    variant_type = get_variant_type_from_ethtool_id(nm_ethtool_id_get_by_name(name));
+
+    if (!variant_type) {
+        g_set_error(error,
+                    NM_CONNECTION_ERROR,
+                    NM_CONNECTION_ERROR_INVALID_PROPERTY,
+                    _("unknown ethtool option '%s'"),
+                    name);
+        return NULL;
+    }
+
+    return variant_type;
+}
+
+/*****************************************************************************/
+
+static void
+nm_setting_ethtool_init(NMSettingEthtool *setting)
+{}
+
+/**
+ * nm_setting_ethtool_new:
+ *
+ * Creates a new #NMSettingEthtool object with default values.
+ *
+ * Returns: (transfer full): the new empty #NMSettingEthtool object
+ *
+ * Since: 1.14
+ **/
+NMSetting *
+nm_setting_ethtool_new(void)
+{
+    return g_object_new(NM_TYPE_SETTING_ETHTOOL, NULL);
+}
+
+static void
+nm_setting_ethtool_class_init(NMSettingEthtoolClass *klass)
+{
+    NMSettingClass *setting_class = NM_SETTING_CLASS(klass);
+
+    setting_class->verify = verify;
+
+    _nm_setting_class_commit_full(
+        setting_class,
+        NM_META_SETTING_TYPE_ETHTOOL,
+        NM_SETT_INFO_SETT_DETAIL(.gendata_info =
+                                     NM_SETT_INFO_SETT_GENDATA(.get_variant_type =
+                                                                   get_variant_type, ), ),
+        NULL);
+}