Mercurial > dropbear
diff common-session.c @ 1634:aabde6f57fce
Add a sanity check for DROPBEAR_SVR_MULTIUSER==0 mode
author | Matt Johnston <matt@ucc.asn.au> |
---|---|
date | Wed, 20 Mar 2019 22:57:06 +0800 |
parents | 60fceff95858 |
children | 76189c9ffea2 |
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--- a/common-session.c Wed Mar 20 14:44:49 2019 +0000 +++ b/common-session.c Wed Mar 20 22:57:06 2019 +0800 @@ -68,6 +68,16 @@ /* Sets it to lowdelay */ update_channel_prio(); +#if !DROPBEAR_SVR_MULTIUSER + /* A sanity check to prevent an accidental configuration option + leaving multiuser systems exposed */ + errno = 0; + getuid(); + if (errno != ENOSYS) { + dropbear_exit("Non-multiuser Dropbear requires a non-multiuser kernel"); + } +#endif + now = monotonic_now(); ses.connect_time = now; ses.last_packet_time_keepalive_recv = now;