diff options
| author | ckishimo <carles.kishimoto@gmail.com> | 2021-02-23 15:50:30 +0100 |
|---|---|---|
| committer | ckishimo <carles.kishimoto@gmail.com> | 2021-02-23 18:04:27 +0100 |
| commit | 600d28e311ba1372d2536ebda39efde2b6ce1e64 (patch) | |
| tree | 05316fa917340def10719efb657ef6b60b350510 | |
| parent | 8ae79ff2692f1cfd615d7f64194cce23b740055c (diff) | |
ospf6d: add DN bit in prefix options
According to RFC 5340 appendix A.4.1.1
0 1 2 3 4 5 6 7
+--+--+--+--+--+-+--+--+
| | | |DN| P|x|LA|NU|
+--+--+--+--+--+-+--+--+
Signed-off-by: ckishimo <carles.kishimoto@gmail.com>
| -rw-r--r-- | ospf6d/ospf6_proto.c | 21 | ||||
| -rw-r--r-- | ospf6d/ospf6_proto.h | 2 |
2 files changed, 9 insertions, 14 deletions
diff --git a/ospf6d/ospf6_proto.c b/ospf6d/ospf6_proto.c index a746037ec5..e60d2c7e0e 100644 --- a/ospf6d/ospf6_proto.c +++ b/ospf6d/ospf6_proto.c @@ -60,21 +60,14 @@ void ospf6_prefix_apply_mask(struct ospf6_prefix *op) void ospf6_prefix_options_printbuf(uint8_t prefix_options, char *buf, int size) { - const char *p, *mc, *la, *nu; + const char *dn, *p, *mc, *la, *nu; - p = (CHECK_FLAG(prefix_options, OSPF6_PREFIX_OPTION_P) - ? "P" - : "--"); - mc = (CHECK_FLAG(prefix_options, OSPF6_PREFIX_OPTION_MC) - ? "MC" - : "--"); - la = (CHECK_FLAG(prefix_options, OSPF6_PREFIX_OPTION_LA) - ? "LA" - : "--"); - nu = (CHECK_FLAG(prefix_options, OSPF6_PREFIX_OPTION_NU) - ? "NU" - : "--"); - snprintf(buf, size, "%s|%s|%s|%s", p, mc, la, nu); + dn = (CHECK_FLAG(prefix_options, OSPF6_PREFIX_OPTION_DN) ? "DN" : "--"); + p = (CHECK_FLAG(prefix_options, OSPF6_PREFIX_OPTION_P) ? "P" : "--"); + mc = (CHECK_FLAG(prefix_options, OSPF6_PREFIX_OPTION_MC) ? "MC" : "--"); + la = (CHECK_FLAG(prefix_options, OSPF6_PREFIX_OPTION_LA) ? "LA" : "--"); + nu = (CHECK_FLAG(prefix_options, OSPF6_PREFIX_OPTION_NU) ? "NU" : "--"); + snprintf(buf, size, "%s|%s|%s|%s|%s", dn, p, mc, la, nu); } void ospf6_capability_printbuf(char capability, char *buf, int size) diff --git a/ospf6d/ospf6_proto.h b/ospf6d/ospf6_proto.h index 3876a98c50..da6b270e01 100644 --- a/ospf6d/ospf6_proto.h +++ b/ospf6d/ospf6_proto.h @@ -69,6 +69,8 @@ struct ospf6_prefix { #define OSPF6_PREFIX_OPTION_LA (1 << 1) /* Local Address */ #define OSPF6_PREFIX_OPTION_MC (1 << 2) /* MultiCast */ #define OSPF6_PREFIX_OPTION_P (1 << 3) /* Propagate (NSSA) */ +#define OSPF6_PREFIX_OPTION_DN \ + (1 << 4) /* DN bit to prevent loops in VPN environment */ /* caddr_t OSPF6_PREFIX_BODY (struct ospf6_prefix *); */ #define OSPF6_PREFIX_BODY(x) ((caddr_t)(x) + sizeof(struct ospf6_prefix)) |