X-Git-Url: http://ftp.safe.ca/?a=blobdiff_plain;f=fs%2Fcifs%2Fnetmisc.c;h=bd6d6895730d885442f5715e7d4c4e3e693ce333;hb=d327cf7449e6fd5cbac784c641770e9366faa386;hp=f9a54da97d3453395d09e7f519ba69d69168c553;hpb=361ea1ae5451040cd254eee0b6df64581080b2cc;p=safe%2Fjmp%2Flinux-2.6

diff --git a/fs/cifs/netmisc.c b/fs/cifs/netmisc.c
index f9a54da..bd6d689 100644
--- a/fs/cifs/netmisc.c
+++ b/fs/cifs/netmisc.c
@@ -158,25 +158,47 @@ cifs_inet_pton(const int address_family, const char *cp, void *dst)
 /*
  * Try to convert a string to an IPv4 address and then attempt to convert
  * it to an IPv6 address if that fails. Set the family field if either
- * succeeds.
+ * succeeds. If it's an IPv6 address and it has a '%' sign in it, try to
+ * treat the part following it as a numeric sin6_scope_id.
  *
  * Returns 0 on failure.
  */
 int
 cifs_convert_address(char *src, void *dst)
 {
+	int rc;
+	char *pct, *endp;
 	struct sockaddr_in *s4 = (struct sockaddr_in *) dst;
 	struct sockaddr_in6 *s6 = (struct sockaddr_in6 *) dst;
 
+	/* IPv4 address */
 	if (cifs_inet_pton(AF_INET, src, &s4->sin_addr.s_addr)) {
 		s4->sin_family = AF_INET;
 		return 1;
-	} else if (cifs_inet_pton(AF_INET6, src, &s6->sin6_addr.s6_addr)) {
-		s6->sin6_family = AF_INET6;
-		return 1;
 	}
 
-	return 0;
+	/* temporarily terminate string */
+	pct = strchr(src, '%');
+	if (pct)
+		*pct = '\0';
+
+	rc = cifs_inet_pton(AF_INET6, src, &s6->sin6_addr.s6_addr);
+
+	/* repair temp termination (if any) and make pct point to scopeid */
+	if (pct)
+		*pct++ = '%';
+
+	if (!rc)
+		return rc;
+
+	s6->sin6_family = AF_INET6;
+	if (pct) {
+		s6->sin6_scope_id = (u32) simple_strtoul(pct, &endp, 0);
+		if (!*pct || *endp)
+			return 0;
+	}
+
+	return rc;
 }
 
 /*****************************************************************************