56 lines
1.7 KiB
Diff
56 lines
1.7 KiB
Diff
commit 6e3f696e788a56f30b5b3f8250647fe4cd63c884
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Author: Steve Dickson <steved@redhat.com>
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Date: Sat Jan 3 14:08:25 2009 -0500
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Now that the TCP wrapper actually works, mounts will
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be denied with misconfigured DNS configurations. Warnings
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will be logged when these types of configurations are
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detected.
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Signed-off-by: Steve Dickson <steved@redhat.com>
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diff -up nfs-utils-1.1.4/support/misc/tcpwrapper.c.orig nfs-utils-1.1.4/support/misc/tcpwrapper.c
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--- nfs-utils-1.1.4/support/misc/tcpwrapper.c.orig 2009-01-03 13:02:15.000000000 -0500
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+++ nfs-utils-1.1.4/support/misc/tcpwrapper.c 2009-01-03 14:05:42.000000000 -0500
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@@ -48,6 +48,8 @@
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#include <sys/stat.h>
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#include <unistd.h>
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+#include "xlog.h"
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+
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#ifdef SYSV40
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#include <netinet/in.h>
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#include <rpc/rpcent.h>
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@@ -179,17 +181,27 @@ struct sockaddr_in *addr;
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/* Now do the hostname lookup */
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hp = gethostbyaddr ((const char *) &(addr->sin_addr),
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sizeof (addr->sin_addr), AF_INET);
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- if (!hp)
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+ if (!hp) {
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+ xlog(L_WARNING,
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+ "Warning: Client IP address '%s' not found in host lookup",
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+ inet_ntoa(addr->sin_addr));
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return DENY; /* never heard of it. misconfigured DNS? */
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+ }
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/* Make sure the hostent is authorative. */
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tmpname = strdup(hp->h_name);
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- if (!tmpname)
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+ if (!tmpname) {
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+ xlog(L_WARNING, "Warning: No memory for Host access check");
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return DENY;
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+ }
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hp = gethostbyname(tmpname);
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- free(tmpname);
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- if (!hp)
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+ if (!hp) {
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+ xlog(L_WARNING,
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+ "Warning: Client hostname '%s' not found in host lookup", tmpname);
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+ free(tmpname);
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return DENY; /* never heard of it. misconfigured DNS? */
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+ }
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+ free(tmpname);
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/* Now make sure the address is on the list */
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for (sp = hp->h_addr_list ; *sp ; sp++) {
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