diff options
| author | Alexander Zubkov <green@qrator.net> | 2023-06-23 17:21:05 +0200 |
|---|---|---|
| committer | Ondrej Zajicek <santiago@crfreenet.org> | 2023-06-23 17:26:03 +0200 |
| commit | 9c81250c04798fd274ae9d77380e93b941ac2d7f (patch) | |
| tree | 3f3913d4328f967669265b04138cf642fab10e2e /proto/radv/config.Y | |
| parent | 65d6a525944faa3f77041419991d77106d8f0a0d (diff) | |
RAdv: Add custom options
Currently one can use only a predefined set of advertised options in RAdv
protocol, which are supported by BIRD configuration. It would be convenient
to be able to specify other possible options at least manually as a blob
so one should not wait until it is supported in the code, released, etc.
This idea is inspired by presentation by Ondřej Caletka at CSNOG, in which
he noticed the lack of either PREF64 option or possibility to add custom
options in various software.
The patch makes it possible to define such options with the syntax:
other type <num> <bytestring>
Diffstat (limited to 'proto/radv/config.Y')
| -rw-r--r-- | proto/radv/config.Y | 14 |
1 files changed, 14 insertions, 0 deletions
diff --git a/proto/radv/config.Y b/proto/radv/config.Y index 8d4a3ab9..5c213d50 100644 --- a/proto/radv/config.Y +++ b/proto/radv/config.Y @@ -25,6 +25,15 @@ static struct radv_dnssl_config this_radv_dnssl; static list radv_dns_list; /* Used by radv_rdnss and radv_dnssl */ static u8 radv_mult_val; /* Used by radv_mult for second return value */ +static inline void +radv_add_to_custom_list(list *l, int type, struct bytestring *payload) +{ + if (type < 0 || type > 255) cf_error("RA cusom type must be in range 0-255"); + struct radv_custom_config *cf = cfg_allocz(sizeof(struct radv_custom_config)); + add_tail(l, NODE cf); + cf->type = type; + cf->payload = payload; +} CF_DECLS @@ -52,6 +61,7 @@ radv_proto_start: proto_start RADV init_list(&RADV_CFG->pref_list); init_list(&RADV_CFG->rdnss_list); init_list(&RADV_CFG->dnssl_list); + init_list(&RADV_CFG->custom_list); }; radv_proto_item: @@ -61,6 +71,7 @@ radv_proto_item: | PREFIX radv_prefix { add_tail(&RADV_CFG->pref_list, NODE this_radv_prefix); } | RDNSS { init_list(&radv_dns_list); } radv_rdnss { add_tail_list(&RADV_CFG->rdnss_list, &radv_dns_list); } | DNSSL { init_list(&radv_dns_list); } radv_dnssl { add_tail_list(&RADV_CFG->dnssl_list, &radv_dns_list); } + | OTHER TYPE expr BYTESTRING { radv_add_to_custom_list(&RADV_CFG->custom_list, $3, $4); } | TRIGGER net_ip6 { RADV_CFG->trigger = $2; } | PROPAGATE ROUTES bool { RADV_CFG->propagate_routes = $3; } ; @@ -82,6 +93,7 @@ radv_iface_start: init_list(&RADV_IFACE->pref_list); init_list(&RADV_IFACE->rdnss_list); init_list(&RADV_IFACE->dnssl_list); + init_list(&RADV_IFACE->custom_list); RADV_IFACE->min_ra_int = (u32) -1; /* undefined */ RADV_IFACE->max_ra_int = DEFAULT_MAX_RA_INT; @@ -124,8 +136,10 @@ radv_iface_item: | PREFIX radv_prefix { add_tail(&RADV_IFACE->pref_list, NODE this_radv_prefix); } | RDNSS { init_list(&radv_dns_list); } radv_rdnss { add_tail_list(&RADV_IFACE->rdnss_list, &radv_dns_list); } | DNSSL { init_list(&radv_dns_list); } radv_dnssl { add_tail_list(&RADV_IFACE->dnssl_list, &radv_dns_list); } + | OTHER TYPE expr BYTESTRING { radv_add_to_custom_list(&RADV_IFACE->custom_list, $3, $4); } | RDNSS LOCAL bool { RADV_IFACE->rdnss_local = $3; } | DNSSL LOCAL bool { RADV_IFACE->dnssl_local = $3; } + | OTHER LOCAL bool { RADV_IFACE->custom_local = $3; } ; radv_preference: |