Commit Graph

61 Commits

Author SHA1 Message Date
Nicholas J. Kain
0884d96d1e PR_SET_PDEATHSIG is not fully reliable, so instead maintain a pair of
AF_UNIX SOCK_STREAM sockets between the master processes and each subprocess,
and poll for the HUP event.

At the same time, be specific about the events that are checked in epoll
when dispatching on an event.
2014-04-15 23:19:24 -04:00
Nicholas J. Kain
e526adce19 Make the signal handling code use safe_read() and unify ifchd and sockd
signals code.
2014-04-15 20:55:13 -04:00
Nicholas J. Kain
b00444ab8b Bound the subprocess lifetime using prctl(PR_SET_PDEATHSIG, ...).
The pipes wouldn't do this job anymore because they were unused and thus
never performed writes that would generate SIGPIPEs, so the pipes are
removed, too.
2014-04-15 18:01:01 -04:00
Nicholas J. Kain
730e5ef310 setpgid() can return EPERM if we are already a process group leader. 2014-04-15 15:02:20 -04:00
Nicholas J. Kain
a777766cc6 Fix stupid typo in ndhc.c that would cause the clientid option to
corrupt the start of the hostname option if both were specified.
2014-04-15 14:55:50 -04:00
Nicholas J. Kain
a501789e04 Parse config options with ragel and support a configuration file. 2014-04-14 15:06:31 -04:00
Nicholas J. Kain
d267c2c44b Use the raw capability interface via updated ncmlib rather than linking
to libcap.
2014-04-07 15:05:34 -04:00
Nicholas J. Kain
5fa2030bab Use a socketpair rather than a pair of pipes for communication between
ndhc and ifch, similar to sockd.  A single pipe is also maintained so
that SIGPIPE can bound the lifetime of an orphaned ifch process.
2014-04-07 03:44:02 -04:00
Nicholas J. Kain
e2ee728982 Consolidate all of the global static variables in arp.c into a single
struct, and use booleans where appropriate.
2014-04-06 22:12:31 -04:00
Nicholas J. Kain
a86363f248 Create a new process ID group for ndhc. 2014-04-06 22:07:12 -04:00
Nicholas J. Kain
b761889025 Move source from ndhc/ to src/ since ifchd is no longer a separate program. 2014-04-06 16:57:06 -04:00