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* sm-notify command: getaddrinfo(3) addrinfo leakChuck Lever2008-09-261-1/+4
| | | | | | | | | | | Make sure the results of getaddrinfo(3) are properly freed in notify(). Note this is a one-time addrinfo allocation that would be automatically freed when sm-notify exits anyway, so this is more of a nit than a real bug fix. Signed-off-by: Chuck Lever <chuck.lever@oracle.com> Signed-off-by: Steve Dickson <steved@redhat.com>
* sm-notify command: include <config.h>Chuck Lever2008-09-261-2/+4
| | | | | | | | Clean up: Include config.h as other source files do; instead of using "config.h" use the HAVE_CONFIG_H macro and include <config.h>. Signed-off-by: Chuck Lever <chuck.lever@oracle.com> Signed-off-by: Steve Dickson <steved@redhat.com>
* rpc.statd: eliminate --secure_statdChuck Lever2008-09-262-56/+13
| | | | | | | | | | | | | | | | | | | | | | | Clean up: Remove RESTRICTED_STATD to help make IPv6 changes simpler. We keep the code behind RESTRICTED_STATD, and toss anything that is compiled out when it is set. RESTRICTED_STATD was added almost 10 years ago in response to CERT CERT CA-99.05, which addresses exposures in rpc.statd that might allow an attacker to take advantage of buffer overflows in rpc.statd while it is running in privileged mode. These days, I can't think of a reason why anyone would want to run rpc.statd without setting RESTRICTED_STATD. In addition, I don't think rpc.statd is ever tested without it. Removing RESTRICTED_STATD will get rid of some address storage and comparison issues that will make IPv6 support simpler. Plus it will make our test matrix smaller! Signed-off-by: Chuck Lever <chuck.lever@oracle.com> Acked-by: Neil Brown <neilb@suse.de> Signed-off-by: Steve Dickson <steved@redhat.com>
* rpc.tatd: refactor check to see if call is from loopback addressChuck Lever2008-09-261-46/+36
| | | | | | | | | | | | | | Refactor common logic to check if SM_FOO request is from loopback address. We'll have to do something about this for IPv6. On IPv6-capable systems, there will be only one AF_INET6 listener. The loopback caller will get either an IPv6 loopback address, or a mapped IPv4 loopback -- either way this will be an AF_INET6 address. Signed-off-by: Chuck Lever <chuck.lever@oracle.com> Acked-by: Neil Brown <neilb@suse.de> Signed-off-by: Steve Dickson <steved@redhat.com>
* sm-notify: perform DNS lookup in the background.Steve Dickson2008-07-251-20/+40
| | | | | | | | | | | | | If an NFS server has no network connectivity when it reboots, it will block in sm-notify waiting for DNS lookup for a potentially large number of hosts. This is not helpful and just annoys the sysadmin. So do the DNS lookup in the backgrounded phase of sm-notify, before sending off the NOTIFY requests. Acked-by: NeilBrown <neilb@suse.de> Signed-off-by: Steve Dickson <steved@redhat.com>
* Add -Wstrict-prototypes to compiler args, and fix warnings caused.Neil Brown2007-07-296-8/+7
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* gitignore updatesJ. Bruce Fields2007-07-101-0/+1
| | | | | | | Update gitignore to ignore some generated files. Signed-off-by: "J. Bruce Fields" <bfields@citi.umich.edu> Signed-off-by: Neil Brown <neilb@suse.de>
* statd - the files created are named for dns_name, so use that when unlinking.Neil Brown2007-05-032-2/+3
| | | | Also free dns_name when freeing an 'nlist', so do the unlink before the free.
* Don't hide my_name in statd.Neil Brown2007-04-201-7/+22
| | | | | statd now passes the 'my_name' from the SM_MON call faithfully to the ha-callout and records it in the sm/ files.
* Make that last patch compile...Neil Brown2007-04-161-2/+3
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* Be more cautious about use for privilege ports (<1024).Neil Brown2007-04-162-11/+33
| | | | | | | | | | | | | Ports < 1024 are a scarce resource and should not be used carelessly. Technically they should be not used at all without registration with IANA, but sometimes we need them despite that. So: for the socket that RPC services listen on, don't use a <1024 port by default. There is no need. For sockets that we send messages on, that are long-lived, and that might need to appear 'privileged', avoid using a number that is registered in /etc/services if possible.
* statd - fix some compile warningsNeil Brown2007-04-031-0/+2
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* Tell NFS/lockd client what that local state number is.Neil Brown2007-04-024-9/+68
| | | | | | | | | | | | Both SM_STAT and SM_MON can return the state of an NSM, but it is unclear which NSM they return the state of, so the value cannot be used, and lockd doesn't use it. Document this confusion, and give the current state to the kernel via a sysctl if that sysctl is available (since about 2.6.19). This should make is possible for the NFS server to detect a small class of bad SM_NOTIFY packets and not flush locks in that case. Signed-off-by: Neil Brown <neilb@suse.de>
* Add start-statd script.Neil Brown2007-03-292-0/+10
| | | | | This script is used by mount.nfs to run statd if needed. It can be locally modified to change arguements if required.
* sm-notify: Try all addresses of a multihomed host.Neil Brown2007-03-291-17/+28
| | | | | | | When sending an SM_NOTIFY to multi-homed host, try all the addresses in rotation. After 4 failures on one address, try the next. Signed-off-by: Neil Brown <neilb@suse.de>
* statd - use dnsname to ensure correct matching of NOTIFY requests.Neil Brown2007-03-293-17/+36
| | | | | | | | | | | | | | | When lockd asks to monitor a host, we find the FQDN from the DNS and remember that, both internally and in the /var/lib/nfs/sm/* file. When we receive an SM_NOTIFY request, we compare both the mon_name and the source IP address against that DNS name to find a match. If a DNS name is not available, we fall back to the name provided by lockd, which at least is known to map to an IP address via gethostbyname. Signed-off-by: Neil Brown <neilb@suse.de>
* statd - check for 'priv' when looking for duplicate registrations.Neil Brown2007-03-291-1/+2
| | | | | | | | From the point of view of the client (lockd), the 'priv' blob is probably the most important key, so make sure to not throw away requests with new 'priv' information. Signed-off-by: Neil Brown <neilb@suse.de>
* statd - remove a pointless ifNeil Brown2007-03-291-19/+17
| | | | | | The if contains a while with essentially the same condition. Signed-off-by: Neil Brown <neilb@suse.de>
* statd - only unregister/register once.Neil Brown2007-03-291-16/+13
| | | | | | | | | | | | | The for loop that restarts on SIGUSR or simu_reboot currently includes several once-only things, that are probably best taken out of the loop. We also take the unregister/register out of the loop as if statd does drop privileges, then the second register won't use a privileged port properly. On the whole, cleaner code. Signed-off-by: Neil Brown <neilb@suse.de>
* sm-notify - fix bugs related to run-only-once.Neil Brown2007-03-291-2/+2
| | | | | | Make sure that sm-notify really runs only once per reboot. Signed-off-by: Neil Brown <neilb@suse.de>
* statd - keep persistent state in sm/* files.Neil Brown2007-03-293-1/+83
| | | | | | | | | | | | If statd dies and is restarted, it forgets what peers the kernel is interested in monitoring, and so will not forward NOTIFY requests properly. With this patch the required information is recorded in the files in /var/lib/nfs/sm/* so that a kill/restart does what you might hope. Signed-off-by: Neil Brown <neilb@suse.de>
* statd - fix bug so statd can talk to kernel again.Neil Brown2007-03-231-0/+2
| | | | | | | We need to call statd_get_socket before dropping privileges so that we have a privileged port. We use to do that when initialising notification as the same socket was used for reboot notication as for callbacks to the kernel. Now it is a different socket..
* sm-notify - Fix typos in Usage message.Neil Brown2007-03-221-1/+1
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* Fix errors in statd calling sm-notify.Neil Brown2007-03-221-4/+5
| | | | | | The option for set-source-address is '-v', not '-N'. And only warn about -N if -N was actually used.
* statd - remove try_to_resolveNeil Brown2007-03-201-60/+2
| | | | | | try_to_resolve is used to resolve a hostname when sending a notification. But we now only send notifications to localhost, so name resolution is not needed.
* sm-notify - use state directory provided via ./configureNeil Brown2007-03-201-1/+5
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* Add --with-rpcgen= for configure so that the system rpcgen can be used.Neil Brown2007-03-201-2/+5
| | | | | | | Ultimately it makes sense to remove remove rpcgen from the nfs-utils release as it is already in the glibc release. With this patch you can use the system rpcgen to make sure it works. It is not default yet, but it might be in a future release.
* statd - delay drop-privs until sockets have been setup.Neil Brown2007-03-201-1/+5
| | | | | Registering sockets with portmap might require root privs, so don't drop privs until that has been done.
* Allow rpc.statd to *not* run sm-notify.Neil Brown2007-03-203-22/+47
| | | | | With -L (for Listen-only) or --no-notify, statd will not run sm-notify.
* Remove notify functionality from statd in favour of sm-notifyNeil Brown2007-03-209-392/+84
| | | | | statd now execs sm-notify to notify peers and only listens to monitor requests and remote notifications itself.
* sm-notify - compile and installNeil Brown2007-03-203-4/+8
| | | | | Add sm-notify to the compile/install scripts, (and fix a compile warning).
* sm-notify - drop privileges before receiving packets from network.Neil Brown2007-03-202-0/+47
| | | | | If /var/lib/nfs/sm is owned by non-root, setuid to that uid after opening sockets but before receiving answers.
* Prevent sm-notify from being run multiple times per reboot.Neil Brown2007-03-202-4/+62
| | | | | | | | | As "mount.nfs" can start statd, and as statd can start sm-notify, the risk of sm-notify being run multiple times increases. As this is not normally appropriate, sm-notify now creates a file in /var/run which will stop future instances from being run (though ofcourse this behaviour can be controlled by a new command line option).
* sm-notify - make the manpage a little more up-to-dateNeil Brown2007-03-201-18/+29
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* sm-notify: remove addr_parseNeil Brown2007-03-201-22/+2
| | | | | This functionality is alreday present in getaddrinfo so it isn't needed explicitly.
* sm-notify: Allow base path to be set by command line option.Neil Brown2007-03-201-4/+26
| | | | for compat with statd.
* Add sm-notify from SuSENeil Brown2007-03-202-0/+792
| | | | Not included in build yet.
* Make --enable-secure-statd the default.Neil Brown2007-03-152-6/+38
| | | | | | | | | | | | | | i.e. you now need --disable-secure-statd if you want any client other than lockd to talk to statd. Also relax the RESTRICTED_STATD checks so that a recent kernel with /proc/sys/fs/nfs/nsm_use_hostnames set can still talk to statd. Finally, restrict access to simulate_crash so that only privileged processes on localhost can call it. Having it accessible by the whole world is probably not much more than a minor inconvenience, but it really should be kept closed.
* Remove path name for rpc.statd from manpage.Neil Brown2007-02-051-1/+1
| | | | | As the man page doesn't need it, and different distros put it in different places.
* Fix typos in various man pages.Steinar H. Gunderson2006-07-051-1/+1
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* Merge branch 'master' of git://linux-nfs.org/nfs-utilsGreg Banks2006-07-031-5/+3
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| * Further coverity related cleanups.Neil Brown2006-06-231-9/+3
| | | | | | | | | | Greg Banks suggested some variations, particularly improved use of xmalloc/xstrdup functions. Thanks.
| * Fix various issues discovered by CoverityNeil Brown2006-06-231-1/+5
| | | | | | | | Thanks to Michael Halcrow for finding them.
* | Comment out unused variable.Greg Banks2006-06-271-0/+2
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* | Detect if glibc provides socklen_t and use that insteadGreg Banks2006-06-271-1/+5
| | | | | | | | | | of int in those cases which generate compile warnings, e.g. the last argument of recvfrom().
* | Fix a number of the easier compile warnings: unused variables,Greg Banks2006-06-224-4/+7
|/ | | | unused labels, constness, signedness.
* Remove **/Makefile.in, aclocal.m4, configure, andNeil Brown2006-04-171-650/+0
| | | | | | support/include/config.h.in from source control These are auto autogenerated by aclocal -I aclocal ; autoheader ; automake ; autoconf
* Define and use HIAVE_IFADDRS_HNeil Brown2006-04-171-1/+7
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* 2006-04-10 "Kevin Coffman" <kwc@citi.umich.edu>neilbrown2006-04-101-0/+2
| | | | | Check for sufficient version of librpcsecgss and libgssapi in configure.in
* 2006-04-10 "Kevin Coffman" <kwc@citi.umich.edu>neilbrown2006-04-101-0/+2
| | | | | Update aclocal/tcp-wrappers.m4 to define HAVE_LIBWRAP and HAVE_TCP_WRAPPERS as appropriate.
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