Merge pull request #9497 from opensourcerouting/cli-better-no

[mirror_frr.git] / bgpd / bgp_ecommunity.h

diff --git a/bgpd/bgp_ecommunity.h b/bgpd/bgp_ecommunity.h
index a9dc2aeaa1f5a3c15e7880d0842dbb992d5fe845..f22855c329076f3b40afdee136d366434640d983 100644 (file)
--- a/bgpd/bgp_ecommunity.h
+++ b/bgpd/bgp_ecommunity.h
@@ -124,6 +124,9 @@ struct ecommunity {
 
        /* Human readable format string.  */
        char *str;
+
+       /* Disable IEEE floating-point encoding for extended community */
+       bool disable_ieee_floating;
 };
 
 struct ecommunity_as {
@@ -151,12 +154,6 @@ struct ecommunity_val_ipv6 {
        char val[IPV6_ECOMMUNITY_SIZE];
 };
 
-enum ecommunity_lb_type {
-       EXPLICIT_BANDWIDTH,
-       CUMULATIVE_BANDWIDTH,
-       COMPUTED_BANDWIDTH
-};
-
 #define ecom_length_size(X, Y)    ((X)->size * (Y))
 
 /*
@@ -204,13 +201,28 @@ static inline void encode_route_target_as4(as_t as, uint16_t val,
        eval->val[7] = val & 0xff;
 }
 
+/* Helper function to convert uint32 to IEEE-754 Floating Point */
+static uint32_t uint32_to_ieee_float_uint32(uint32_t u)
+{
+       union {
+               float r;
+               uint32_t d;
+       } f = {.r = (float)u};
+
+       return f.d;
+}
+
 /*
  * Encode BGP Link Bandwidth extended community
  *  bandwidth (bw) is in bytes-per-sec
  */
 static inline void encode_lb_extcomm(as_t as, uint32_t bw, bool non_trans,
-                                    struct ecommunity_val *eval)
+                                    struct ecommunity_val *eval,
+                                    bool disable_ieee_floating)
 {
+       uint32_t bandwidth =
+               disable_ieee_floating ? bw : uint32_to_ieee_float_uint32(bw);
+
        memset(eval, 0, sizeof(*eval));
        eval->val[0] = ECOMMUNITY_ENCODE_AS;
        if (non_trans)
@@ -218,18 +230,20 @@ static inline void encode_lb_extcomm(as_t as, uint32_t bw, bool non_trans,
        eval->val[1] = ECOMMUNITY_LINK_BANDWIDTH;
        eval->val[2] = (as >> 8) & 0xff;
        eval->val[3] = as & 0xff;
-       eval->val[4] = (bw >> 24) & 0xff;
-       eval->val[5] = (bw >> 16) & 0xff;
-       eval->val[6] = (bw >> 8) & 0xff;
-       eval->val[7] = bw & 0xff;
+       eval->val[4] = (bandwidth >> 24) & 0xff;
+       eval->val[5] = (bandwidth >> 16) & 0xff;
+       eval->val[6] = (bandwidth >> 8) & 0xff;
+       eval->val[7] = bandwidth & 0xff;
 }
 
 extern void ecommunity_init(void);
 extern void ecommunity_finish(void);
 extern void ecommunity_free(struct ecommunity **);
-extern struct ecommunity *ecommunity_parse(uint8_t *, unsigned short);
+extern struct ecommunity *ecommunity_parse(uint8_t *, unsigned short,
+                                          bool disable_ieee_floating);
 extern struct ecommunity *ecommunity_parse_ipv6(uint8_t *pnt,
-                                               unsigned short length);
+                                               unsigned short length,
+                                               bool disable_ieee_floating);
 extern struct ecommunity *ecommunity_dup(struct ecommunity *);
 extern struct ecommunity *ecommunity_merge(struct ecommunity *,
                                           struct ecommunity *);
@@ -287,7 +301,9 @@ extern void bgp_aggr_ecommunity_remove(void *arg);
 extern const uint8_t *ecommunity_linkbw_present(struct ecommunity *ecom,
                                                uint32_t *bw);
 extern struct ecommunity *ecommunity_replace_linkbw(as_t as,
-                               struct ecommunity *ecom, uint64_t cum_bw);
+                                                   struct ecommunity *ecom,
+                                                   uint64_t cum_bw,
+                                                   bool disable_ieee_floating);
 
 static inline void ecommunity_strip_rts(struct ecommunity *ecom)
 {