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Assuming the tcp_wrappers library can actually support IPv6 addresses,
here's a crack at IPv6 support in nfs-utils' TCP wrapper shim.
Some reorganization is done to limit the number of times that @sap
is converted to a presentation address string.
Signed-off-by: Chuck Lever <chuck.lever@oracle.com>
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Eliminate these compiler warnings:
tcpwrapper.c: In function logit
tcpwrapper.c:225: warning: unused parameter procnum
tcpwrapper.c:225: warning: unused parameter prognum
Actually, @procnum is not used anywhere in our tcpwrapper.c, so
let's just get rid of it.
Since there is only one logit() call site in tcpwrapper.c, the macro
wrapper just adds needless clutter. Let's get rid of that too.
Finally, both mountd and statd now use xlog(), which adds an
appropriate program name prefix to every message. Replace the
open-coded syslog(2) call with an xlog() call in order to
consistently identify the RPC service reporting the intrusion.
Since logit() no longer references "deny_severity" and no nfs-utils
caller sets either allow_severity or deny_severity, we remove them.
Signed-off-by: Chuck Lever <chuck.lever@oracle.com>
Signed-off-by: Steve Dickson <steved@redhat.com>
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TI-RPC's version of the svc_getcaller() macro points to a sockaddr_in6,
not a sockaddr_in, though for AF_INET callers, an AF_INET address
resides there. To squelch compiler warnings when the TI-RPC version of
the svc_req structure is used, add inline helpers with appropriate
type casting.
Note that tcp_wrappers support only AF_INET addresses for now.
Signed-off-by: Chuck Lever <chuck.lever@oracle.com>
Signed-off-by: Steve Dickson <steved@redhat.com>
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* utils/rquotad/rquotad.man, utils/statd/statd.man,
utils/mountd/mountd.man: updated
* utils/mountd/Makefile (LIBS): added -lmisc $(LIBWRAP) $(LIBNSL)
* utils/rquotad/Makefile: fix comment
* support/misc/tcpwrapper.c (logit): added comment about waiting
for the children after fork()
* utils/mountd/mountd.c (main): ignore SIGCHLD to prevent leaving
zombies behind (from logit()'s fork)
* utils/rquotad/rquota_svc.c (main): ditto
* utils/statd/statd.c (main): ditto
* utils/rquotad/rquota_svc.c (rquotaprog_1): pass RQUOTAPROG
to check_default instead of 0, for prognum
* utils/statd/statd.c (sm_prog_1_wrapper): pass SM_PROG
to check_default instead of 0, for prognum
* utils/mountd/mount_dispatch.c: Include "tcpwrapper.h" if
HAVE_TCP_WRAPPER is defined.
(mount_dispatch): Call check_default () if HAVE_TCP_WRAPPER is
defined. Reject an RPC call if check_default () fails.
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