bitzdots

1#!/bin/bash
2# Wait for NetworkManager to be ready and ensure WiFi auto-connects.
3# Fixes: on boot WiFi sometimes shows disconnected (strikethrough) and
4#        impala/nmtui crash because NetworkManager isn't up yet.
5set -u
6 
7NM_WAIT=30          # max seconds to wait for NetworkManager
8CONN_WAIT=45        # max seconds to wait for an active connection
9WAIT_STEP=1
10 
11log() { echo "[wifi-fix] $*"; }
12 
13# 1. Wait for NetworkManager D-Bus to come up
14waited=0
15while ! nmcli -t -f STATE general 2>/dev/null | grep -q "connected\|connecting\|disconnected\|asleep\|unavailable"; do
16    waited=$((waited + WAIT_STEP))
17    if [ "$waited" -ge "$NM_WAIT" ]; then
18        log "NetworkManager did not come up after ${NM_WAIT}s"
19        exit 1
20    fi
21    sleep "$WAIT_STEP"
22done
23log "NetworkManager is up"
24 
25# 2. Make sure the radio is not soft-blocked
26if command -v rfkill &>/dev/null; then
27    rfkill unblock wifi 2>/dev/null || true
28fi
29 
30# 3. Ensure WiFi radio is on
31nmcli radio wifi on 2>/dev/null || true
32 
33# 4. Let NetworkManager autoconnect to saved profiles. If it already
34#    connected during boot, skip; otherwise retry each saved connection.
35if nmcli -t -f DEVICE,STATE dev status 2>/dev/null | grep -q ":connected"; then
36    log "Already connected"
37    exit 0
38fi
39 
40for _ in $(seq 1 "$CONN_WAIT"); do
41    if nmcli -t -f DEVICE,STATE dev status 2>/dev/null | grep -q ":connected"; then
42        log "Connected"
43        exit 0
44    fi
45    sleep "$WAIT_STEP"
46done
47 
48# Still not connected — explicitly activate every saved connection once
49log "Not connected yet — reactivating saved connections"
50while IFS=: read -r name uuid; do
51    [ -n "$name" ] || continue
52    log "Connecting to $name"
53    nmcli connection up uuid "$uuid" 2>/dev/null
54done < <(nmcli -t -f NAME,UUID connection show 2>/dev/null)
55 
56sleep 3
57if nmcli -t -f DEVICE,STATE dev status 2>/dev/null | grep -q ":connected"; then
58    log "Connected after reactivation"
59    exit 0
60fi
61 
62# If still offline, retry a couple more times with a short delay
63for attempt in 1 2 3; do
64    sleep 5
65    nmcli radio wifi off 2>/dev/null
66    sleep 2
67    nmcli radio wifi on 2>/dev/null
68    for _ in $(seq 1 10); do
69        if nmcli -t -f DEVICE,STATE dev status 2>/dev/null | grep -q ":connected"; then
70            log "Connected after retry"
71            exit 0
72        fi
73        sleep 1
74    done
75done
76 
77log "Could not connect to any network (attempt $attempt/3)"
78exit 1
79