#endif
/* Returns 1 if the spi is matched by the range, 0 otherwise */
-static inline int
-spi_match(u_int32_t min, u_int32_t max, u_int32_t spi, int invert)
+static inline bool
+spi_match(u_int32_t min, u_int32_t max, u_int32_t spi, bool invert)
{
- int r = 0;
+ bool r;
duprintf("esp spi_match:%c 0x%x <= 0x%x <= 0x%x", invert ? '!' : ' ',
min, spi, max);
r = (spi >= min && spi <= max) ^ invert;
return r;
}
-static int
+static bool
match(const struct sk_buff *skb,
const struct net_device *in,
const struct net_device *out,
const void *matchinfo,
int offset,
unsigned int protoff,
- int *hotdrop)
+ bool *hotdrop)
{
struct ip_esp_hdr _esp, *eh;
const struct xt_esp *espinfo = matchinfo;
/* Must not be a fragment. */
if (offset)
- return 0;
+ return false;
eh = skb_header_pointer(skb, protoff, sizeof(_esp), &_esp);
if (eh == NULL) {
* can't. Hence, no choice but to drop.
*/
duprintf("Dropping evil ESP tinygram.\n");
- *hotdrop = 1;
- return 0;
+ *hotdrop = true;
+ return false;
}
return spi_match(espinfo->spis[0], espinfo->spis[1], ntohl(eh->spi),
}
/* Called when user tries to insert an entry of this type. */
-static int
+static bool
checkentry(const char *tablename,
const void *ip_void,
const struct xt_match *match,
if (espinfo->invflags & ~XT_ESP_INV_MASK) {
duprintf("xt_esp: unknown flags %X\n", espinfo->invflags);
- return 0;
+ return false;
}
- return 1;
+ return true;
}
-static struct xt_match xt_esp_match[] = {
+static struct xt_match xt_esp_match[] __read_mostly = {
{
.name = "esp",
.family = AF_INET,