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Commit | Line | Data |
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1 | #!/bin/sh | |
2 | # | |
3 | # sshd sshd (secure shell daemon) | |
4 | # | |
5 | # chkconfig: 345 22 88 | |
6 | # | |
7 | # description: sshd (secure shell daemon) is a server part of the ssh suite. \ | |
8 | # Ssh can be used for remote login, remote file copying, TCP port \ | |
9 | # forwarding etc. Ssh offers strong encryption and authentication. | |
10 | ||
11 | # Source function library | |
12 | . /etc/rc.d/init.d/functions | |
13 | ||
14 | # Get network config | |
15 | . /etc/sysconfig/network | |
16 | ||
17 | SSHD_OOM_ADJUST=-1000 | |
18 | PIDFILE=/var/run/sshd.pid | |
19 | ||
20 | # Get service config | |
21 | [ -f /etc/sysconfig/sshd ] && . /etc/sysconfig/sshd | |
22 | ||
23 | # Check that networking is up. | |
24 | if is_yes "${NETWORKING}"; then | |
25 | if [ ! -f /var/lock/subsys/network -a "$1" != stop -a "$1" != status -a "$1" != init ]; then | |
26 | msg_network_down "OpenSSH" | |
27 | exit 1 | |
28 | fi | |
29 | else | |
30 | exit 0 | |
31 | fi | |
32 | ||
33 | adjust_oom() { | |
34 | if [ -e $PIDFILE ]; then | |
35 | for pid in $(cat $PIDFILE); do | |
36 | echo "$SSHD_OOM_ADJUST" 2>/dev/null > /proc/$pid/oom_score_adj | |
37 | done | |
38 | fi | |
39 | } | |
40 | ||
41 | checkconfig() { | |
42 | ssh_gen_keys | |
43 | /usr/sbin/sshd -t || exit 1 | |
44 | } | |
45 | ||
46 | ssh_gen_keys() { | |
47 | @@LIBEXECDIR@@/sshd-keygen | |
48 | } | |
49 | ||
50 | start() { | |
51 | # Check if the service is already running? | |
52 | if status --pidfile $PIDFILE sshd >/dev/null; then | |
53 | msg_already_running "OpenSSH" | |
54 | return | |
55 | fi | |
56 | ||
57 | checkconfig | |
58 | ||
59 | if [ "$(echo /etc/ssh/ssh_host*key)" = "/etc/ssh/ssh_host*key" ]; then | |
60 | msg_not_running "OpenSSH" | |
61 | nls "No SSH host key found! You must run \"%s init\" first." "$0" | |
62 | exit 1 | |
63 | fi | |
64 | ||
65 | if is_yes "$IPV4_NETWORKING" && is_no "$IPV6_NETWORKING"; then | |
66 | OPTIONS="$OPTIONS -4" | |
67 | fi | |
68 | if is_yes "$IPV6_NETWORKING" && is_no "$IPV4_NETWORKING"; then | |
69 | OPTIONS="$OPTIONS -6" | |
70 | fi | |
71 | ||
72 | msg_starting "OpenSSH" | |
73 | daemon --pidfile $PIDFILE /usr/sbin/sshd $OPTIONS | |
74 | RETVAL=$? | |
75 | adjust_oom | |
76 | [ $RETVAL -eq 0 ] && touch /var/lock/subsys/sshd | |
77 | } | |
78 | ||
79 | stop() { | |
80 | if [ ! -f /var/lock/subsys/sshd ]; then | |
81 | msg_not_running "OpenSSH" | |
82 | return | |
83 | fi | |
84 | ||
85 | msg_stopping "OpenSSH" | |
86 | # we use start-stop-daemon to stop sshd, as it is unacceptable for such | |
87 | # critical service as sshd to kill it by procname, but unfortunately | |
88 | # rc-scripts does not provide way to kill *only* by pidfile | |
89 | start-stop-daemon --stop --quiet --pidfile $PIDFILE && ok || fail | |
90 | rm -f /var/lock/subsys/sshd >/dev/null 2>&1 | |
91 | } | |
92 | ||
93 | reload() { | |
94 | if [ ! -f /var/lock/subsys/sshd ]; then | |
95 | msg_not_running "OpenSSH" | |
96 | RETVAL=7 | |
97 | return | |
98 | fi | |
99 | ||
100 | checkconfig | |
101 | msg_reloading "OpenSSH" | |
102 | killproc sshd -HUP | |
103 | RETVAL=$? | |
104 | } | |
105 | ||
106 | condrestart() { | |
107 | if [ ! -f /var/lock/subsys/sshd ]; then | |
108 | msg_not_running "OpenSSH" | |
109 | RETVAL=$1 | |
110 | return | |
111 | fi | |
112 | ||
113 | checkconfig | |
114 | stop | |
115 | start | |
116 | } | |
117 | ||
118 | RETVAL=0 | |
119 | # See how we were called. | |
120 | case "$1" in | |
121 | start) | |
122 | start | |
123 | ;; | |
124 | stop) | |
125 | stop | |
126 | ;; | |
127 | restart) | |
128 | checkconfig | |
129 | stop | |
130 | start | |
131 | ;; | |
132 | try-restart) | |
133 | condrestart 0 | |
134 | ;; | |
135 | reload|force-reload) | |
136 | reload | |
137 | ;; | |
138 | configtest) | |
139 | checkconfig | |
140 | ;; | |
141 | init) | |
142 | nls "Now the SSH host key will be generated. Please note, that if you" | |
143 | nls "will use password for the key, you will need to type it on each" | |
144 | nls "reboot." | |
145 | ssh_gen_keys | |
146 | ;; | |
147 | status) | |
148 | status --pidfile $PIDFILE sshd | |
149 | exit $? | |
150 | ;; | |
151 | *) | |
152 | msg_usage "$0 {start|stop|restart|try-restart|reload|force-reload|configtest|init|status}" | |
153 | exit 3 | |
154 | esac | |
155 | ||
156 | exit $RETVAL |