On Thu, 2007-01-25 at 16:37 +0900, Ian Kent wrote:
> On Wed, 2007-01-24 at 13:13 -0600, Bill Maloy wrote:
> > Solaris NFS servers can be configured to use a network
> > specifier in the access_list of an NFS exported file
> > system.
> >
> > >From <http://docs.sun.com/app/docs/doc/816-0211/6m6nc676n?a=view>
> > "The network or subnet component is preceded by an at-sign (@). "
>
> *Sigh*
> I missed that as well when I updated to account for the Solaris export
> semantics.
How about trying this patch out.
I haven't had a chance to test this at all yet so beware.
Ian
diff --git a/lib/rpc_subs.c b/lib/rpc_subs.c
index b4e9c91..a794d76 100644
--- a/lib/rpc_subs.c
+++ b/lib/rpc_subs.c
@@ -31,6 +31,7 @@
#include <rpcsvc/ypclnt.h>
#include <errno.h>
#include <sys/ioctl.h>
+#include <pthread.h>
#include "mount.h"
#include "rpc_subs.h"
@@ -43,9 +44,14 @@
#endif
#define MAX_ERR_BUF 512
+/* Get numeric value of the n bits starting at position p */
+#define getbits(x, p, n) ((x >> (p + 1 - n)) & ~(~0 << n))
static char *ypdomain = NULL;
+inline void dump_core(void);
+static pthread_mutex_t networks_mutex = PTHREAD_MUTEX_INITIALIZER;
+
/*
* Create a UDP RPC client
*/
@@ -965,12 +971,127 @@ static int string_match(const char *myname, const char
*pattern)
return ret;
}
+static unsigned int get_networks_mask(struct netent *net)
+{
+ if (IN_CLASSC(net->n_net))
+ return 24;
+ else if (IN_CLASSB(net->n_net))
+ return 16;
+ else if (IN_CLASSA(net->n_net))
+ return 8;
+
+ return 0;
+}
+
+static unsigned int inet_get_net_len(uint32_t net)
+{
+ int i;
+
+ for (i = 0; i < 32; i++) {
+ if (getbits(net, i, 1))
+ break;
+ }
+
+ return (unsigned int) i;
+}
+
+static char *inet_fill_net(const char *net_num, char *net)
+{
+ char *np;
+ unsigned int dots = 3;
+
+ *net = '\0';
+ strcpy(net, net_num);
+
+ np = net;
+ while (*np) {
+ if (*np++ == '.') {
+ dots--;
+ if (!*np && dots)
+ strcat(net, "0");
+ }
+ }
+
+ while (dots--)
+ strcat(net, ".0");
+
+ return net;
+}
+
+static int match_network(const char *network)
+{
+ struct netent *pnent, nent;
+ const char *pcnet;
+ char *net, cnet[17], mask[4], *pmask;
+ unsigned int size;
+ int status;
+
+ net = alloca(strlen(network) + 1);
+ if (!net)
+ return 0;
+ strcpy(net, network);
+
+ if ((pmask = strchr(net, '/')))
+ *pmask++ = '\0';
+
+ status = pthread_mutex_lock(&networks_mutex);
+ if (status)
+ fatal(status);
+
+ pnent = getnetbyname(net);
+ if (pnent)
+ memcpy(&nent, pnent, sizeof(struct netent));
+
+ status = pthread_mutex_unlock(&networks_mutex);
+ if (status)
+ fatal(status);
+
+ if (pnent) {
+ uint32_t n_net;
+
+ n_net = ntohl(nent.n_net);
+ pcnet = inet_ntop(nent.n_addrtype, &n_net, cnet, 16);
+ if (!pcnet)
+ return 0;
+
+ if (!pmask) {
+ size = get_networks_mask(&nent);
+ if (!size)
+ return 0;
+ }
+ } else {
+ struct in_addr addr;
+ int ret;
+
+ pcnet = inet_fill_net(net, cnet);
+ if (!pcnet)
+ return 0;
+
+ ret = inet_pton(AF_INET, pcnet, &addr);
+ if (ret <= 0)
+ return 0;
+
+ if (!pmask) {
+ size = inet_get_net_len(htonl(addr.s_addr));
+ if (!size)
+ return 0;
+ }
+ }
+
+ if (!pmask) {
+ if (sprintf(mask, "%u", size) <= 0)
+ return 0;
+ pmask = mask;
+ }
+
+ return masked_match(pcnet, mask);
+}
+
static int host_match(char *pattern)
{
unsigned int negate = (*pattern == '-');
const char *m_pattern = (negate ? pattern + 1 : pattern);
char myname[MAXHOSTNAMELEN + 1] = "\0";
- struct in_addr tmp;
int ret = 0;
if (gethostname(myname, MAXHOSTNAMELEN))
@@ -982,26 +1103,13 @@ static int host_match(char *pattern)
if (*m_pattern == '@') {
if (ypdomain)
ret = innetgr(m_pattern + 1, myname, NULL, ypdomain);
- } else if (inet_aton(m_pattern, &tmp) || strchr(m_pattern, '/')) {
- size_t len = strlen(m_pattern) + 1;
- char *addr, *mask;
-
- addr = alloca(len);
- if (!addr)
- return 0;
-
- memset(addr, 0, len);
- memcpy(addr, m_pattern, len - 1);
- mask = strchr(addr, '/');
- if (mask) {
- *mask++ = '\0';
- ret = masked_match(addr, mask);
- } else
- ret = masked_match(addr, "32");
+ if (!ret)
+ ret = match_network(m_pattern + 1);
} else if (!strcmp(m_pattern, "gss/krb5")) {
/* Leave this to the GSS layer */
ret = 1;
- } else
+ } else if ((ret = match_network(m_pattern))) ;
+ else
ret = string_match(myname, m_pattern);
if (negate)
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