#include <vnet/ip/ip_types.h>
#include <vnet/ip/format.h>
+#include <vnet/ip/ip.h>
u8 *
format_ip_address (u8 * s, va_list * args)
int res = 0;
if (ip_addr_version (ip1) != ip_addr_version (ip2))
return -1;
- res =
- memcmp (&ip_addr_addr (ip1), &ip_addr_addr (ip2), ip_address_size (ip1));
+ res = ip46_address_cmp (&ip_addr_46 (ip1), &ip_addr_46 (ip2));
if (res < 0)
res = 2;
{
/* don't copy any garbage from the union */
clib_memset (dst, 0, sizeof (*dst));
- dst->ip.v4 = src->ip.v4;
+ ip_addr_v4 (dst) = ip_addr_v4 (src);
dst->version = AF_IP4;
}
else
}
}
+u8 *
+ip_addr_bytes (ip_address_t * ip)
+{
+ switch (ip->version)
+ {
+ case AF_IP4:
+ return (u8 *) & ip_addr_v4 (ip);
+ case AF_IP6:
+ return (u8 *) & ip_addr_v6 (ip);
+ break;
+ }
+ ASSERT (0);
+ return (NULL);
+}
+
void
ip_address_copy_addr (void *dst, const ip_address_t * src)
{
- clib_memcpy (dst, src, ip_address_size (src));
+ switch (src->version)
+ {
+ case AF_IP4:
+ clib_memcpy (dst, &ip_addr_v4 (src), ip_address_size (src));
+ break;
+ case AF_IP6:
+ clib_memcpy (dst, &ip_addr_v6 (src), ip_address_size (src));
+ break;
+ }
}
u16
-ip_version_to_size (u8 ver)
+ip_version_to_size (ip_address_family_t af)
{
- switch (ver)
+ switch (af)
{
case AF_IP4:
return sizeof (ip4_address_t);
return 0;
}
-void
-ip_address_set (ip_address_t * dst, const void *src, u8 version)
+vnet_link_t
+ip_address_family_to_link_type (ip_address_family_t af)
{
- clib_memcpy (dst, src, ip_version_to_size (version));
- ip_addr_version (dst) = version;
+ switch (af)
+ {
+ case AF_IP4:
+ return (VNET_LINK_IP4);
+ case AF_IP6:
+ return (VNET_LINK_IP6);
+ }
+ ASSERT (0);
+ return (VNET_LINK_IP4);
}
-fib_protocol_t
-ip_address_to_46 (const ip_address_t * addr, ip46_address_t * a)
+
+void
+ip_address_set (ip_address_t * dst, const void *src, u8 version)
{
- fib_protocol_t proto = FIB_PROTOCOL_IP4;
+ ip_addr_version (dst) = version;
- switch (ip_addr_version (addr))
+ switch (version)
{
case AF_IP4:
- ip46_address_set_ip4 (a, &addr->ip.v4);
+ ip_addr_v4 (dst) = *(ip4_address_t *) src;
break;
case AF_IP6:
- proto = FIB_PROTOCOL_IP6;
- a->ip6 = addr->ip.v6;
+ ip_addr_v6 (dst) = *(ip6_address_t *) src;
break;
}
+}
- return (proto);
+fib_protocol_t
+ip_address_family_to_fib_proto (ip_address_family_t af)
+{
+ switch (af)
+ {
+ case AF_IP4:
+ return (FIB_PROTOCOL_IP4);
+ case AF_IP6:
+ return (FIB_PROTOCOL_IP6);
+ }
+ ASSERT (0);
+ return (FIB_PROTOCOL_IP4);
}
-void
-ip_address_from_46 (const ip46_address_t * nh,
- fib_protocol_t fproto, ip_address_t * ip)
+ip_address_family_t
+ip_address_family_from_fib_proto (fib_protocol_t fp)
{
- switch (fproto)
+ switch (fp)
{
case FIB_PROTOCOL_IP4:
- clib_memset (ip, 0, sizeof (*ip));
- ip_address_set (ip, &nh->ip4, AF_IP4);
- break;
+ return (AF_IP4);
case FIB_PROTOCOL_IP6:
- ip_address_set (ip, &nh->ip6, AF_IP6);
- break;
- default:
+ return (AF_IP6);
+ case FIB_PROTOCOL_MPLS:
ASSERT (0);
- break;
}
+ return (AF_IP4);
+}
+
+fib_protocol_t
+ip_address_to_46 (const ip_address_t * addr, ip46_address_t * a)
+{
+ *a = ip_addr_46 (addr);
+ return (ip_address_family_to_fib_proto (ip_addr_version (addr)));
+}
+
+void
+ip_address_from_46 (const ip46_address_t * nh,
+ fib_protocol_t fproto, ip_address_t * ip)
+{
+ ip_addr_46 (ip) = *nh;
+ ip_addr_version (ip) = ip_address_family_from_fib_proto (fproto);
}
static void
return cmp;
}
+static bool
+ip4_prefix_validate (const ip_prefix_t * ip)
+{
+ ip4_address_t ip4_addr, ip4_mask;
+
+ if (ip_prefix_len (ip) > 32)
+ return (false);
+
+ ip4_addr = ip_prefix_v4 (ip);
+ ip4_preflen_to_mask (ip_prefix_len (ip), &ip4_mask);
+
+ return ((ip4_addr.as_u32 & ip4_mask.as_u32) == ip4_addr.as_u32);
+}
+
+static bool
+ip6_prefix_validate (const ip_prefix_t * ip)
+{
+ ip6_address_t ip6_addr, ip6_mask;
+
+ if (ip_prefix_len (ip) > 128)
+ return (false);
+
+ ip6_addr = ip_prefix_v6 (ip);
+ ip6_preflen_to_mask (ip_prefix_len (ip), &ip6_mask);
+
+ return (((ip6_addr.as_u64[0] & ip6_mask.as_u64[0]) == ip6_addr.as_u64[0]) &&
+ ((ip6_addr.as_u64[1] & ip6_mask.as_u64[1]) == ip6_addr.as_u64[1]));
+}
+
+bool
+ip_prefix_validate (const ip_prefix_t * ip)
+{
+ switch (ip_prefix_version (ip))
+ {
+ case AF_IP4:
+ return (ip4_prefix_validate (ip));
+ case AF_IP6:
+ return (ip6_prefix_validate (ip));
+ }
+ ASSERT (0);
+ return (false);
+}
+
+void
+ip4_address_normalize (ip4_address_t * ip4, u8 preflen)
+{
+ ASSERT (preflen <= 32);
+ if (preflen == 0)
+ ip4->data_u32 = 0;
+ else
+ ip4->data_u32 &= clib_net_to_host_u32 (0xffffffff << (32 - preflen));
+}
+
+void
+ip6_address_normalize (ip6_address_t * ip6, u8 preflen)
+{
+ ASSERT (preflen <= 128);
+ if (preflen == 0)
+ {
+ ip6->as_u64[0] = 0;
+ ip6->as_u64[1] = 0;
+ }
+ else if (preflen <= 64)
+ {
+ ip6->as_u64[0] &=
+ clib_host_to_net_u64 (0xffffffffffffffffL << (64 - preflen));
+ ip6->as_u64[1] = 0;
+ }
+ else
+ ip6->as_u64[1] &=
+ clib_host_to_net_u64 (0xffffffffffffffffL << (128 - preflen));
+}
+
+void
+ip4_preflen_to_mask (u8 pref_len, ip4_address_t * ip)
+{
+ if (pref_len == 0)
+ ip->as_u32 = 0;
+ else
+ ip->as_u32 = clib_host_to_net_u32 (~((1 << (32 - pref_len)) - 1));
+}
+
+u32
+ip4_mask_to_preflen (ip4_address_t * mask)
+{
+ if (mask->as_u32 == 0)
+ return 0;
+ return (32 - log2_first_set (clib_net_to_host_u32 (mask->as_u32)));
+}
+
+void
+ip4_prefix_max_address_host_order (ip4_address_t * ip, u8 plen,
+ ip4_address_t * res)
+{
+ u32 not_mask;
+ not_mask = (1 << (32 - plen)) - 1;
+ res->as_u32 = clib_net_to_host_u32 (ip->as_u32) + not_mask;
+}
+
+void
+ip6_preflen_to_mask (u8 pref_len, ip6_address_t * mask)
+{
+ if (pref_len == 0)
+ {
+ mask->as_u64[0] = 0;
+ mask->as_u64[1] = 0;
+ }
+ else if (pref_len <= 64)
+ {
+ mask->as_u64[0] =
+ clib_host_to_net_u64 (0xffffffffffffffffL << (64 - pref_len));
+ mask->as_u64[1] = 0;
+ }
+ else
+ {
+ mask->as_u64[0] = 0xffffffffffffffffL;
+ mask->as_u64[1] =
+ clib_host_to_net_u64 (0xffffffffffffffffL << (128 - pref_len));
+ }
+}
+
+void
+ip6_prefix_max_address_host_order (ip6_address_t * ip, u8 plen,
+ ip6_address_t * res)
+{
+ u64 not_mask;
+ if (plen == 0)
+ {
+ res->as_u64[0] = 0xffffffffffffffffL;
+ res->as_u64[1] = 0xffffffffffffffffL;
+ }
+ else if (plen <= 64)
+ {
+ not_mask = ((u64) 1 << (64 - plen)) - 1;
+ res->as_u64[0] = clib_net_to_host_u64 (ip->as_u64[0]) + not_mask;
+ res->as_u64[1] = 0xffffffffffffffffL;
+ }
+ else
+ {
+ not_mask = ((u64) 1 << (128 - plen)) - 1;
+ res->as_u64[1] = clib_net_to_host_u64 (ip->as_u64[1]) + not_mask;
+ }
+}
+
+u32
+ip6_mask_to_preflen (ip6_address_t * mask)
+{
+ u8 first1, first0;
+ if (mask->as_u64[0] == 0 && mask->as_u64[1] == 0)
+ return 0;
+ first1 = log2_first_set (clib_net_to_host_u64 (mask->as_u64[1]));
+ first0 = log2_first_set (clib_net_to_host_u64 (mask->as_u64[0]));
+
+ if (first1 != 0)
+ return 128 - first1;
+ else
+ return 64 - first0;
+}
+
/*
* fd.io coding-style-patch-verification: ON
*
Code Review / vpp.git / blobdiff