bond: support the peer_notif_delay bond option

Merge Request NetworkManager/NetworkManager!913

(cherry picked from commit e5dca403dc)
(cherry picked from commit a636c25b59)

libnm-core/nm-libnm-core-intern/nm-libnm-core-utils.c

@@ -25,6 +25,7 @@ _nm_setting_bond_remove_options_miimon(NMSettingBond *s_bond)
     nm_setting_bond_remove_option(s_bond, NM_SETTING_BOND_OPTION_MIIMON);
     nm_setting_bond_remove_option(s_bond, NM_SETTING_BOND_OPTION_UPDELAY);
     nm_setting_bond_remove_option(s_bond, NM_SETTING_BOND_OPTION_DOWNDELAY);
+    nm_setting_bond_remove_option(s_bond, NM_SETTING_BOND_OPTION_PEER_NOTIF_DELAY);
 }
 
 void

libnm-core/nm-setting-bond.c

@@ -74,6 +74,7 @@ static const char *const valid_options_lst[] = {
     NM_SETTING_BOND_OPTION_PACKETS_PER_SLAVE,
     NM_SETTING_BOND_OPTION_TLB_DYNAMIC_LB,
     NM_SETTING_BOND_OPTION_LP_INTERVAL,
+    NM_SETTING_BOND_OPTION_PEER_NOTIF_DELAY,
     NULL,
 };
 
@@ -191,6 +192,7 @@ static NM_UTILS_STRING_TABLE_LOOKUP_STRUCT_DEFINE(
     {NM_SETTING_BOND_OPTION_NUM_GRAT_ARP, {"1", NM_BOND_OPTION_TYPE_INT, 0, 255}},
     {NM_SETTING_BOND_OPTION_NUM_UNSOL_NA, {"1", NM_BOND_OPTION_TYPE_INT, 0, 255}},
     {NM_SETTING_BOND_OPTION_PACKETS_PER_SLAVE, {"1", NM_BOND_OPTION_TYPE_INT, 0, 65535}},
+    {NM_SETTING_BOND_OPTION_PEER_NOTIF_DELAY, {"0", NM_BOND_OPTION_TYPE_INT, 0, G_MAXINT}},
     {NM_SETTING_BOND_OPTION_PRIMARY, {"", NM_BOND_OPTION_TYPE_IFNAME}},
     {NM_SETTING_BOND_OPTION_PRIMARY_RESELECT,
      {"always", NM_BOND_OPTION_TYPE_BOTH, 0, 2, _option_default_strv_primary_reselect}},
@@ -766,6 +768,7 @@ verify(NMSetting *setting, NMConnection *connection, GError **error)
     int                      arp_interval;
     int                      num_grat_arp;
     int                      num_unsol_na;
+    int                      peer_notif_delay;
     const char *             mode_str;
     const char *             arp_ip_target = NULL;
     const char *             lacp_rate;
@@ -794,6 +797,8 @@ verify(NMSetting *setting, NMConnection *connection, GError **error)
     arp_interval = _atoi(_bond_get_option_or_default(self, NM_SETTING_BOND_OPTION_ARP_INTERVAL));
     num_grat_arp = _atoi(_bond_get_option_or_default(self, NM_SETTING_BOND_OPTION_NUM_GRAT_ARP));
     num_unsol_na = _atoi(_bond_get_option_or_default(self, NM_SETTING_BOND_OPTION_NUM_UNSOL_NA));
+    peer_notif_delay =
+        _atoi(_bond_get_option_or_default(self, NM_SETTING_BOND_OPTION_PEER_NOTIF_DELAY));
 
     /* Option restrictions:
      *
@@ -802,6 +807,8 @@ verify(NMSetting *setting, NMConnection *connection, GError **error)
      * arp_validate does not work with [ BOND_MODE_8023AD, BOND_MODE_TLB, BOND_MODE_ALB ]
      * downdelay needs miimon
      * updelay needs miimon
+     * peer_notif_delay needs miimon enabled
+     * peer_notif_delay must be a miimon multiple
      * primary needs [ active-backup, tlb, alb ]
      */
 
@@ -910,6 +917,36 @@ verify(NMSetting *setting, NMConnection *connection, GError **error)
         }
     }
 
+    if (peer_notif_delay) {
+        if (miimon == 0) {
+            g_set_error(error,
+                        NM_CONNECTION_ERROR,
+                        NM_CONNECTION_ERROR_INVALID_PROPERTY,
+                        _("'%s' option requires '%s' option to be enabled"),
+                        NM_SETTING_BOND_OPTION_PEER_NOTIF_DELAY,
+                        NM_SETTING_BOND_OPTION_MIIMON);
+            g_prefix_error(error, "%s.%s: ", NM_SETTING_BOND_SETTING_NAME, NM_SETTING_BOND_OPTIONS);
+            return FALSE;
+        }
+
+        /* The code disables miimon when arp is set, so they never occur together.
+         * But this occurs after this verification, so this check can occur in
+         * an invalid state, when both arp and miimon are enabled. To assure not
+         * dealing with an invalid state, this arp_interval == 0 condition,
+         * that is implicit, was made explicit.
+         */
+        if ((peer_notif_delay % miimon) && (arp_interval == 0)) {
+            g_set_error(error,
+                        NM_CONNECTION_ERROR,
+                        NM_CONNECTION_ERROR_INVALID_PROPERTY,
+                        _("'%s' option needs to be a value multiple of '%s' value"),
+                        NM_SETTING_BOND_OPTION_PEER_NOTIF_DELAY,
+                        NM_SETTING_BOND_OPTION_MIIMON);
+            g_prefix_error(error, "%s.%s: ", NM_SETTING_BOND_SETTING_NAME, NM_SETTING_BOND_OPTIONS);
+            return FALSE;
+        }
+    }
+
     /* arp_ip_target can only be used with arp_interval, and must
      * contain a comma-separated list of IPv4 addresses.
      */

libnm-core/nm-setting-bond.h

@@ -56,6 +56,7 @@ G_BEGIN_DECLS
 #define NM_SETTING_BOND_OPTION_PACKETS_PER_SLAVE "packets_per_slave"
 #define NM_SETTING_BOND_OPTION_TLB_DYNAMIC_LB    "tlb_dynamic_lb"
 #define NM_SETTING_BOND_OPTION_LP_INTERVAL       "lp_interval"
+#define NM_SETTING_BOND_OPTION_PEER_NOTIF_DELAY  "peer_notif_delay"
 
 /**
  * NMSettingBond:

src/core/devices/nm-device-bond.c

@@ -34,7 +34,7 @@
         NM_SETTING_BOND_OPTION_PACKETS_PER_SLAVE, NM_SETTING_BOND_OPTION_PRIMARY_RESELECT, \
         NM_SETTING_BOND_OPTION_RESEND_IGMP, NM_SETTING_BOND_OPTION_TLB_DYNAMIC_LB,         \
         NM_SETTING_BOND_OPTION_USE_CARRIER, NM_SETTING_BOND_OPTION_XMIT_HASH_POLICY,       \
-        NM_SETTING_BOND_OPTION_NUM_GRAT_ARP
+        NM_SETTING_BOND_OPTION_NUM_GRAT_ARP, NM_SETTING_BOND_OPTION_PEER_NOTIF_DELAY
 
 #define OPTIONS_REAPPLY_SUBSET                                                            \
     NM_SETTING_BOND_OPTION_MIIMON, NM_SETTING_BOND_OPTION_UPDELAY,                        \
@@ -46,7 +46,7 @@
         NM_SETTING_BOND_OPTION_MIN_LINKS, NM_SETTING_BOND_OPTION_PACKETS_PER_SLAVE,       \
         NM_SETTING_BOND_OPTION_PRIMARY_RESELECT, NM_SETTING_BOND_OPTION_RESEND_IGMP,      \
         NM_SETTING_BOND_OPTION_USE_CARRIER, NM_SETTING_BOND_OPTION_XMIT_HASH_POLICY,      \
-        NM_SETTING_BOND_OPTION_NUM_GRAT_ARP
+        NM_SETTING_BOND_OPTION_NUM_GRAT_ARP, NM_SETTING_BOND_OPTION_PEER_NOTIF_DELAY
 
 #define OPTIONS_REAPPLY_FULL                                     \
     OPTIONS_REAPPLY_SUBSET, NM_SETTING_BOND_OPTION_ACTIVE_SLAVE, \