+ * The largest string sm_addrbuf should hold is a full-size IPv6 address
+ * (no "::" anywhere) with a scope ID. The buffer size is computed to
+ * hold eight groups of colon-separated four-hex-digit numbers, a
+ * percent sign, a scope id (at most 32 bits, in decimal), and NUL.
+ */
+#define NSM_ADDRBUF ((8 * 4 + 7) + (1 + 10) + 1)
+
+struct nsm_handle {
+ struct list_head sm_link;
+ atomic_t sm_count;
+ char *sm_mon_name;
+ char *sm_name;
+ struct sockaddr_storage sm_addr;
+ size_t sm_addrlen;
+ unsigned int sm_monitored : 1,
+ sm_sticky : 1; /* don't unmonitor */
+ struct nsm_private sm_priv;
+ char sm_addrbuf[NSM_ADDRBUF];
+};
+
+/*
+ * Rigorous type checking on sockaddr type conversions
+ */
+static inline struct sockaddr_in *nlm_addr_in(const struct nlm_host *host)
+{
+ return (struct sockaddr_in *)&host->h_addr;
+}
+
+static inline struct sockaddr *nlm_addr(const struct nlm_host *host)
+{
+ return (struct sockaddr *)&host->h_addr;
+}
+
+static inline struct sockaddr_in *nlm_srcaddr_in(const struct nlm_host *host)
+{
+ return (struct sockaddr_in *)&host->h_srcaddr;
+}
+
+static inline struct sockaddr *nlm_srcaddr(const struct nlm_host *host)
+{
+ return (struct sockaddr *)&host->h_srcaddr;
+}
+
+/*