[PATCH] service: Fix an additional case of autoconnect breakage under iwd

[lists@jade.fyi]

From: Jade Lovelace <lists@jade.fyi>

Error flow:
- __connman_service_create_from_network() creates network, but it is not
  favorite since it is not yet saved
- trigger_autoconnect is skipped since !favorite

*** User calls Connect() ***
- iwd plugin gets connect() call
- iwd plugin finds out about new known network and copies the
  autoconnect state of the iwd_network to the iwd_known_network, which
  is false since it was zero initialized and nobody called
  connman_network_set_autoconnect on it.
- 💥 iwd plugin tells iwd to set AutoConnect to false
- service_indicate_state() calls __connman_service_set_favorite(service,
  true)
- nobody tells the iwd plugin about the change in favorite state

This patch calls trigger_autoconnect right at the end there, which will
then propagate the outcome of the favorite state to the iwd plugin. I
think this patch is the right design for the current architecture of the
autoconnect state management, but I think the autoconnect design
probably needs some changes outside the scope of this patch since it is
too easy to make these mistakes.
---
 src/service.c | 4 ++++
 1 file changed, 4 insertions(+)

diff --git a/src/service.c b/src/service.c
index 079c7a6c..6f31adb3 100644
--- a/src/service.c
+++ b/src/service.c
@@ -156,6 +156,7 @@ static struct connman_ipconfig *create_ip6config(struct connman_service *service
 		int index);
 static void dns_changed(struct connman_service *service);
 static void vpn_auto_connect(void);
+static void trigger_autoconnect(struct connman_service *service);
 
 struct find_data {
 	const char *path;
@@ -5624,6 +5625,9 @@ int __connman_service_set_favorite_delayed(struct connman_service *service,
 	service->favorite = favorite;
 
 	favorite_changed(service);
+	/* If native autoconnect is in use, the favorite state may affect the
+	 * autoconnect state, so it needs to be rerun. */
+	trigger_autoconnect(service);
 
 	if (!delay_ordering) {
 
-- 
2.38.1