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Unset the gss kernel state when gssd exits

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When gssd exits it leaves the kernel state set by
gssd_syscall().  nfsd sees this and waits endlessly
in an unkillable state for gssd to come back.  If you
had acidentally started gssd then stopped it, then
started nfsd you'd be in a bad way until you either
restarted gssd or rebooted the system.  This change
fixes that by setting the kernel state to "" when
gssd exits.
Reviewed by:	rmacklem
MFC after:	1 week
Sponsored by:	iXsystems
This commit is contained in:
Josh Paetzel 2016-01-01 17:06:16 +00:00
parent d52aff3c7a
commit 21d7e927b5
Notes: svn2git 2020-12-20 02:59:44 +00:00 
svn path=/head/; revision=293043
2 changed files with 13 additions and 8 deletions
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19
sys/kgssapi/gss_impl.c
View file

@ -105,14 +105,17 @@ sys_gssd_syscall(struct thread *td, struct gssd_syscall_args *uap)
if (error)
return (error);
sun.sun_family = AF_LOCAL;
strcpy(sun.sun_path, path);
sun.sun_len = SUN_LEN(&sun);
nconf = getnetconfigent("local");
cl = clnt_reconnect_create(nconf,
(struct sockaddr *) &sun, GSSD, GSSDVERS,
RPC_MAXDATASIZE, RPC_MAXDATASIZE);
if (path[0] != '\0') {
sun.sun_family = AF_LOCAL;
strcpy(sun.sun_path, path);
sun.sun_len = SUN_LEN(&sun);
nconf = getnetconfigent("local");
cl = clnt_reconnect_create(nconf,
(struct sockaddr *) &sun, GSSD, GSSDVERS,
RPC_MAXDATASIZE, RPC_MAXDATASIZE);
} else
cl = NULL;
mtx_lock(&kgss_gssd_lock);
oldcl = kgss_gssd_handle;

2
usr.sbin/gssd/gssd.c
View file

@ -254,6 +254,7 @@ main(int argc, char **argv)
gssd_syscall(_PATH_GSSDSOCK);
svc_run();
gssd_syscall("");
return (0);
}
@ -1285,6 +1286,7 @@ void gssd_terminate(int sig __unused)
if (hostbased_initiator_cred != 0)
unlink(GSSD_CREDENTIAL_CACHE_FILE);
#endif
gssd_syscall("");
exit(0);
}