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authorMaria Matejka <mq@ucw.cz>2022-03-19 16:23:42 +0100
committerMaria Matejka <mq@ucw.cz>2022-05-04 15:39:19 +0200
commit17f91f9e6e70f7e3f29502e854823c0d48571eaa (patch)
treefab70e2115ce8d4e070382368df3eff4f3f44b97 /proto/radv/radv.c
parent165156beeb2926472bbceca3c103aacc3f81a8cc (diff)
Explicit definition structures of route attributes
Changes in internal API: * Every route attribute must be defined as struct ea_class somewhere. * Registration of route attributes known at startup must be done by ea_register_init() from protocol build functions. * Every attribute has now its symbol registered in a global symbol table defined as SYM_ATTRIBUTE * All attribute ID's are dynamically allocated. * Attribute value custom formatting hook is defined in the ea_class. * Attribute names are the same for display and filters, always prefixed by protocol name. Also added some unit testing code for filters with route attributes.
Diffstat (limited to 'proto/radv/radv.c')
-rw-r--r--proto/radv/radv.c42
1 files changed, 24 insertions, 18 deletions
diff --git a/proto/radv/radv.c b/proto/radv/radv.c
index 7985997a..5734dbc9 100644
--- a/proto/radv/radv.c
+++ b/proto/radv/radv.c
@@ -10,6 +10,7 @@
#include <stdlib.h>
#include "radv.h"
+#include "lib/macro.h"
/**
* DOC: Router Advertisements
@@ -42,6 +43,8 @@
* RFC 6106 - DNS extensions (RDDNS, DNSSL)
*/
+static struct ea_class ea_radv_preference, ea_radv_lifetime;
+
static void radv_prune_prefixes(struct radv_iface *ifa);
static void radv_prune_routes(struct radv_proto *p);
@@ -444,11 +447,11 @@ radv_rt_notify(struct proto *P, struct channel *ch UNUSED, net *n, rte *new, rte
{
/* Update */
- ea = ea_find(new->attrs->eattrs, EA_RA_PREFERENCE);
+ ea = ea_find(new->attrs->eattrs, &ea_radv_preference);
uint preference = ea ? ea->u.data : RA_PREF_MEDIUM;
uint preference_set = !!ea;
- ea = ea_find(new->attrs->eattrs, EA_RA_LIFETIME);
+ ea = ea_find(new->attrs->eattrs, &ea_radv_lifetime);
uint lifetime = ea ? ea->u.data : 0;
uint lifetime_set = !!ea;
@@ -738,27 +741,26 @@ radv_pref_str(u32 pref)
}
}
-/* The buffer has some minimal size */
-static int
-radv_get_attr(const eattr *a, byte *buf, int buflen UNUSED)
+static void
+radv_preference_format(const eattr *a, byte *buf, uint buflen)
{
- switch (a->id)
- {
- case EA_RA_PREFERENCE:
- bsprintf(buf, "preference: %s", radv_pref_str(a->u.data));
- return GA_FULL;
- case EA_RA_LIFETIME:
- bsprintf(buf, "lifetime");
- return GA_NAME;
- default:
- return GA_UNKNOWN;
- }
+ bsnprintf(buf, buflen, "%s", radv_pref_str(a->u.data));
}
+static struct ea_class ea_radv_preference = {
+ .name = "radv_preference",
+ .type = T_ENUM_RA_PREFERENCE,
+ .format = radv_preference_format,
+};
+
+static struct ea_class ea_radv_lifetime = {
+ .name = "radv_lifetime",
+ .type = T_INT,
+};
+
struct protocol proto_radv = {
.name = "RAdv",
.template = "radv%d",
- .class = PROTOCOL_RADV,
.channel_mask = NB_IP6,
.proto_size = sizeof(struct radv_proto),
.config_size = sizeof(struct radv_config),
@@ -769,11 +771,15 @@ struct protocol proto_radv = {
.reconfigure = radv_reconfigure,
.copy_config = radv_copy_config,
.get_status = radv_get_status,
- .get_attr = radv_get_attr
};
void
radv_build(void)
{
proto_build(&proto_radv);
+
+ EA_REGISTER_ALL(
+ &ea_radv_preference,
+ &ea_radv_lifetime
+ );
}