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-rw-r--r--nest/a-set.c127
-rw-r--r--nest/attrs.h32
-rw-r--r--nest/route.h5
-rw-r--r--nest/rt-attr.c15
4 files changed, 175 insertions, 4 deletions
diff --git a/nest/a-set.c b/nest/a-set.c
index a6116022..0484ab98 100644
--- a/nest/a-set.c
+++ b/nest/a-set.c
@@ -116,7 +116,7 @@ int
ec_set_format(struct adata *set, int from, byte *buf, uint size)
{
u32 *z = int_set_get_data(set);
- byte *end = buf + size - 24;
+ byte *end = buf + size - 64;
int from2 = MAX(from, 0);
int to = int_set_get_size(set);
int i;
@@ -142,6 +142,43 @@ ec_set_format(struct adata *set, int from, byte *buf, uint size)
}
int
+lc_format(byte *buf, lcomm lc)
+{
+ return bsprintf(buf, "(%d, %d, %d)", lc.asn, lc.ldp1, lc.ldp2);
+}
+
+int
+lc_set_format(struct adata *set, int from, byte *buf, uint bufsize)
+{
+ u32 *d = (u32 *) set->data;
+ byte *end = buf + bufsize - 64;
+ int from2 = MAX(from, 0);
+ int to = set->length / 4;
+ int i;
+
+ for (i = from2; i < to; i += 3)
+ {
+ if (buf > end)
+ {
+ if (from < 0)
+ strcpy(buf, "...");
+ else
+ buf[-1] = 0;
+ return i;
+ }
+
+ buf += bsprintf(buf, "(%d, %d, %d)", d[i], d[i+1], d[i+2]);
+ *buf++ = ' ';
+ }
+
+ if (i != from2)
+ buf--;
+
+ *buf = 0;
+ return 0;
+}
+
+int
int_set_contains(struct adata *list, u32 val)
{
if (!list)
@@ -177,6 +214,24 @@ ec_set_contains(struct adata *list, u64 val)
return 0;
}
+int
+lc_set_contains(struct adata *list, lcomm val)
+{
+ if (!list)
+ return 0;
+
+ u32 *l = int_set_get_data(list);
+ int len = int_set_get_size(list);
+ int i;
+
+ for (i = 0; i < len; i += 3)
+ if (lc_match(l, i, val))
+ return 1;
+
+ return 0;
+}
+
+
struct adata *
int_set_add(struct linpool *pool, struct adata *list, u32 val)
{
@@ -208,13 +263,30 @@ ec_set_add(struct linpool *pool, struct adata *list, u64 val)
if (list)
memcpy(res->data, list->data, list->length);
- u32 *l = (u32 *) (res->data + res->length - 8);
+ u32 *l = (u32 *) (res->data + olen);
l[0] = ec_hi(val);
l[1] = ec_lo(val);
return res;
}
+struct adata *
+lc_set_add(struct linpool *pool, struct adata *list, lcomm val)
+{
+ if (lc_set_contains(list, val))
+ return list;
+
+ int olen = list ? list->length : 0;
+ struct adata *res = lp_alloc(pool, sizeof(struct adata) + olen + LCOMM_LENGTH);
+ res->length = olen + LCOMM_LENGTH;
+
+ if (list)
+ memcpy(res->data, list->data, list->length);
+
+ lc_put((u32 *) (res->data + olen), val);
+
+ return res;
+}
struct adata *
int_set_del(struct linpool *pool, struct adata *list, u32 val)
@@ -265,6 +337,27 @@ ec_set_del(struct linpool *pool, struct adata *list, u64 val)
return res;
}
+struct adata *
+lc_set_del(struct linpool *pool, struct adata *list, lcomm val)
+{
+ if (!lc_set_contains(list, val))
+ return list;
+
+ struct adata *res;
+ res = lp_alloc(pool, sizeof(struct adata) + list->length - LCOMM_LENGTH);
+ res->length = list->length - LCOMM_LENGTH;
+
+ u32 *l = int_set_get_data(list);
+ u32 *k = int_set_get_data(res);
+ int len = int_set_get_size(list);
+ int i;
+
+ for (i=0; i < len; i += 3)
+ if (! lc_match(l, i, val))
+ k = lc_copy(k, l+i);
+
+ return res;
+}
struct adata *
int_set_union(struct linpool *pool, struct adata *l1, struct adata *l2)
@@ -328,3 +421,33 @@ ec_set_union(struct linpool *pool, struct adata *l1, struct adata *l2)
memcpy(res->data + l1->length, tmp, len);
return res;
}
+
+struct adata *
+lc_set_union(struct linpool *pool, struct adata *l1, struct adata *l2)
+{
+ if (!l1)
+ return l2;
+ if (!l2)
+ return l1;
+
+ struct adata *res;
+ int len = int_set_get_size(l2);
+ u32 *l = int_set_get_data(l2);
+ u32 tmp[len];
+ u32 *k = tmp;
+ int i;
+
+ for (i = 0; i < len; i += 3)
+ if (!lc_set_contains(l1, lc_get(l, i)))
+ k = lc_copy(k, l+i);
+
+ if (k == tmp)
+ return l1;
+
+ len = (k - tmp) * 4;
+ res = lp_alloc(pool, sizeof(struct adata) + l1->length + len);
+ res->length = l1->length + len;
+ memcpy(res->data, l1->data, l1->length);
+ memcpy(res->data + l1->length, tmp, len);
+ return res;
+}
diff --git a/nest/attrs.h b/nest/attrs.h
index 670b048f..548d71a9 100644
--- a/nest/attrs.h
+++ b/nest/attrs.h
@@ -68,6 +68,7 @@ int as_path_match(struct adata *path, struct f_path_mask *mask);
/* Transitive bit (for first u32 half of EC) */
#define EC_TBIT 0x40000000
+#define ECOMM_LENGTH 8
static inline int int_set_get_size(struct adata *list)
{ return list->length / 4; }
@@ -75,6 +76,9 @@ static inline int int_set_get_size(struct adata *list)
static inline int ec_set_get_size(struct adata *list)
{ return list->length / 8; }
+static inline int lc_set_get_size(struct adata *list)
+{ return list->length / 12; }
+
static inline u32 *int_set_get_data(struct adata *list)
{ return (u32 *) list->data; }
@@ -98,17 +102,45 @@ static inline u64 ec_ip4(u64 kind, u64 key, u64 val)
static inline u64 ec_generic(u64 key, u64 val)
{ return (key << 32) | val; }
+/* Large community value */
+typedef struct lcomm {
+ u32 asn;
+ u32 ldp1;
+ u32 ldp2;
+} lcomm;
+
+#define LCOMM_LENGTH 12
+
+static inline lcomm lc_get(const u32 *l, int i)
+{ return (lcomm) { l[i], l[i+1], l[i+2] }; }
+
+static inline void lc_put(u32 *l, lcomm v)
+{ l[0] = v.asn; l[1] = v.ldp1; l[2] = v.ldp2; }
+
+static inline int lc_match(const u32 *l, int i, lcomm v)
+{ return (l[i] == v.asn && l[i+1] == v.ldp1 && l[i+2] == v.ldp2); }
+
+static inline u32 *lc_copy(u32 *dst, const u32 *src)
+{ memcpy(dst, src, LCOMM_LENGTH); return dst + 3; }
+
+
int int_set_format(struct adata *set, int way, int from, byte *buf, uint size);
int ec_format(byte *buf, u64 ec);
int ec_set_format(struct adata *set, int from, byte *buf, uint size);
+int lc_format(byte *buf, lcomm lc);
+int lc_set_format(struct adata *set, int from, byte *buf, uint size);
int int_set_contains(struct adata *list, u32 val);
int ec_set_contains(struct adata *list, u64 val);
+int lc_set_contains(struct adata *list, lcomm val);
struct adata *int_set_add(struct linpool *pool, struct adata *list, u32 val);
struct adata *ec_set_add(struct linpool *pool, struct adata *list, u64 val);
+struct adata *lc_set_add(struct linpool *pool, struct adata *list, lcomm val);
struct adata *int_set_del(struct linpool *pool, struct adata *list, u32 val);
struct adata *ec_set_del(struct linpool *pool, struct adata *list, u64 val);
+struct adata *lc_set_del(struct linpool *pool, struct adata *list, lcomm val);
struct adata *int_set_union(struct linpool *pool, struct adata *l1, struct adata *l2);
struct adata *ec_set_union(struct linpool *pool, struct adata *l1, struct adata *l2);
+struct adata *lc_set_union(struct linpool *pool, struct adata *l1, struct adata *l2);
#endif
diff --git a/nest/route.h b/nest/route.h
index 2fcb189a..07320566 100644
--- a/nest/route.h
+++ b/nest/route.h
@@ -442,7 +442,7 @@ typedef struct eattr {
#define EA_ALLOW_UNDEF 0x10000 /* ea_find: allow EAF_TYPE_UNDEF */
#define EA_BIT(n) ((n) << 24) /* Used in bitfield accessors */
-#define EAF_TYPE_MASK 0x0f /* Mask with this to get type */
+#define EAF_TYPE_MASK 0x1f /* Mask with this to get type */
#define EAF_TYPE_INT 0x01 /* 32-bit unsigned integer number */
#define EAF_TYPE_OPAQUE 0x02 /* Opaque byte string (not filterable) */
#define EAF_TYPE_IP_ADDRESS 0x04 /* IP address */
@@ -451,7 +451,8 @@ typedef struct eattr {
#define EAF_TYPE_BITFIELD 0x09 /* 32-bit embedded bitfield */
#define EAF_TYPE_INT_SET 0x0a /* Set of u32's (e.g., a community list) */
#define EAF_TYPE_EC_SET 0x0e /* Set of pairs of u32's - ext. community list */
-#define EAF_TYPE_UNDEF 0x0f /* `force undefined' entry */
+#define EAF_TYPE_LC_SET 0x12 /* Set of triplets of u32's - large community list */
+#define EAF_TYPE_UNDEF 0x1f /* `force undefined' entry */
#define EAF_EMBEDDED 0x01 /* Data stored in eattr.u.data (part of type spec) */
#define EAF_VAR_LENGTH 0x02 /* Attribute length is variable (part of type spec) */
#define EAF_ORIGINATED 0x40 /* The attribute has originated locally */
diff --git a/nest/rt-attr.c b/nest/rt-attr.c
index ab0069b5..9aeca846 100644
--- a/nest/rt-attr.c
+++ b/nest/rt-attr.c
@@ -828,6 +828,18 @@ ea_show_ec_set(struct cli *c, struct adata *ad, byte *pos, byte *buf, byte *end)
}
}
+static inline void
+ea_show_lc_set(struct cli *c, struct adata *ad, byte *pos, byte *buf, byte *end)
+{
+ int i = lc_set_format(ad, 0, pos, end - pos);
+ cli_printf(c, -1012, "\t%s", buf);
+ while (i)
+ {
+ i = lc_set_format(ad, i, buf, end - buf - 1);
+ cli_printf(c, -1012, "\t\t%s", buf);
+ }
+}
+
/**
* ea_show - print an &eattr to CLI
* @c: destination CLI
@@ -892,6 +904,9 @@ ea_show(struct cli *c, eattr *e)
case EAF_TYPE_EC_SET:
ea_show_ec_set(c, ad, pos, buf, end);
return;
+ case EAF_TYPE_LC_SET:
+ ea_show_lc_set(c, ad, pos, buf, end);
+ return;
case EAF_TYPE_UNDEF:
default:
bsprintf(pos, "<type %02x>", e->type);
generated by cgit v1.2.3 (git 2.39.1) at 2024-11-24 06:53:44 +0000