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From 957e8465acdb9aaca0fbc797ac6df1efc2270f57 Mon Sep 17 00:00:00 2001
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From: Antonio Cardace <acardace@redhat.com>
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Date: Tue, 4 Aug 2020 18:19:47 +0200
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Subject: [PATCH] bond: fix can_reapply_change() false positives
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can_reapply_change() would wrongly return true for
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unsupported reapply values because it used 'nm_setting_bond_get_option_default()'
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that is ill-named because it returns the overriden option other than
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its default value.
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https://bugzilla.redhat.com/show_bug.cgi?id=1847814
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Fixes: 9bd07336ef16 ('bond: bond options logic rework')
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(cherry picked from commit 04d6ca1fb8bdbfffd70a257424f9e8c29fcb8037)
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(cherry picked from commit 63b5274dda0c52148ec8e8ca41e94e47b1e7d653)
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---
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src/devices/nm-device-bond.c | 31 +++++++------------------------
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1 file changed, 7 insertions(+), 24 deletions(-)
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diff --git a/src/devices/nm-device-bond.c b/src/devices/nm-device-bond.c
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index e36eba61b..164f6aaa7 100644
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--- a/src/devices/nm-device-bond.c
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+++ b/src/devices/nm-device-bond.c
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@@ -516,14 +516,12 @@ create_and_realize (NMDevice *device,
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static gboolean
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check_changed_options (NMSettingBond *s_a, NMSettingBond *s_b, GError **error)
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{
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- guint i, num;
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- const char *name = NULL, *value_a = NULL, *value_b = NULL;
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+ const char **option_list;
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- /* Check that options in @s_a have compatible changes in @s_b */
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+ option_list = nm_setting_bond_get_valid_options (NULL);
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- num = nm_setting_bond_get_num_options (s_a);
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- for (i = 0; i < num; i++) {
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- nm_setting_bond_get_option (s_a, i, &name, &value_a);
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+ for (; *option_list; ++option_list) {
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+ const char *name = *option_list;
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/* We support changes to these */
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if (NM_IN_STRSET (name,
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@@ -532,15 +530,9 @@ check_changed_options (NMSettingBond *s_a, NMSettingBond *s_b, GError **error)
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continue;
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}
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- /* Missing in @s_b, but has a default value in @s_a */
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- value_b = nm_setting_bond_get_option_by_name (s_b, name);
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- if ( !value_b
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- && nm_streq0 (value_a, nm_setting_bond_get_option_default (s_a, name))) {
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- continue;
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- }
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-
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/* Reject any other changes */
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- if (!nm_streq0 (value_a, value_b)) {
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+ if (!nm_streq0 (nm_setting_bond_get_option_normalized (s_a, name),
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+ nm_setting_bond_get_option_normalized (s_b, name))) {
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g_set_error (error,
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NM_DEVICE_ERROR,
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NM_DEVICE_ERROR_INCOMPATIBLE_CONNECTION,
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@@ -562,7 +554,6 @@ can_reapply_change (NMDevice *device,
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GError **error)
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{
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NMDeviceClass *device_class;
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- NMSettingBond *s_bond_old, *s_bond_new;
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/* Only handle bond setting here, delegate other settings to parent class */
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if (nm_streq (setting_name, NM_SETTING_BOND_SETTING_NAME)) {
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@@ -572,15 +563,7 @@ can_reapply_change (NMDevice *device,
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NM_SETTING_BOND_OPTIONS))
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return FALSE;
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- s_bond_old = NM_SETTING_BOND (s_old);
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- s_bond_new = NM_SETTING_BOND (s_new);
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-
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- if ( !check_changed_options (s_bond_old, s_bond_new, error)
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- || !check_changed_options (s_bond_new, s_bond_old, error)) {
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- return FALSE;
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- }
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-
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- return TRUE;
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+ return check_changed_options (NM_SETTING_BOND (s_old), NM_SETTING_BOND (s_new), error);
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}
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device_class = NM_DEVICE_CLASS (nm_device_bond_parent_class);
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--
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2.26.2
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