diff options
Diffstat (limited to 'proto/bgp/bgp.c')
| -rw-r--r-- | proto/bgp/bgp.c | 122 |
1 files changed, 68 insertions, 54 deletions
diff --git a/proto/bgp/bgp.c b/proto/bgp/bgp.c index 4e4ca9f..675342d 100644 --- a/proto/bgp/bgp.c +++ b/proto/bgp/bgp.c @@ -919,6 +919,73 @@ bgp_init(struct proto_config *C) return P; } + +void +bgp_check_config(struct bgp_config *c) +{ + int internal = (c->local_as == c->remote_as); + + /* Do not check templates at all */ + if (c->c.class == SYM_TEMPLATE) + return; + + if (!c->local_as) + cf_error("Local AS number must be set"); + + if (!c->remote_as) + cf_error("Neighbor must be configured"); + + if (!(c->capabilities && c->enable_as4) && (c->remote_as > 0xFFFF)) + cf_error("Neighbor AS number out of range (AS4 not available)"); + + if (!internal && c->rr_client) + cf_error("Only internal neighbor can be RR client"); + + if (internal && c->rs_client) + cf_error("Only external neighbor can be RS client"); + + if (c->multihop && (c->gw_mode == GW_DIRECT)) + cf_error("Multihop BGP cannot use direct gateway mode"); + + /* Different default based on rs_client */ + if (!c->missing_lladdr) + c->missing_lladdr = c->rs_client ? MLL_IGNORE : MLL_SELF; + + /* Different default for gw_mode */ + if (!c->gw_mode) + c->gw_mode = (c->multihop || internal) ? GW_RECURSIVE : GW_DIRECT; +} + +static int +bgp_reconfigure(struct proto *P, struct proto_config *C) +{ + struct bgp_config *new = (struct bgp_config *) C; + struct bgp_proto *p = (struct bgp_proto *) P; + struct bgp_config *old = p->cf; + + int same = !memcmp(((byte *) old) + sizeof(struct proto_config), + ((byte *) new) + sizeof(struct proto_config), + // password item is last and must be checked separately + OFFSETOF(struct bgp_config, password) - sizeof(struct proto_config)) + && ((!old->password && !new->password) + || (old->password && new->password && !strcmp(old->password, new->password))) + && (get_igp_table(old) == get_igp_table(new)); + + /* We should update our copy of configuration ptr as old configuration will be freed */ + if (same) + p->cf = new; + + return same; +} + +static void +bgp_copy_config(struct proto_config *dest, struct proto_config *src) +{ + /* Just a shallow copy */ + proto_copy_rest(dest, src, sizeof(struct bgp_config)); +} + + /** * bgp_error - report a protocol error * @c: connection @@ -983,38 +1050,6 @@ bgp_store_error(struct bgp_proto *p, struct bgp_conn *c, u8 class, u32 code) p->last_error_code = code; } -void -bgp_check(struct bgp_config *c) -{ - int internal = (c->local_as == c->remote_as); - - if (!c->local_as) - cf_error("Local AS number must be set"); - - if (!c->remote_as) - cf_error("Neighbor must be configured"); - - if (!(c->capabilities && c->enable_as4) && (c->remote_as > 0xFFFF)) - cf_error("Neighbor AS number out of range (AS4 not available)"); - - if (!internal && c->rr_client) - cf_error("Only internal neighbor can be RR client"); - - if (internal && c->rs_client) - cf_error("Only external neighbor can be RS client"); - - if (c->multihop && (c->gw_mode == GW_DIRECT)) - cf_error("Multihop BGP cannot use direct gateway mode"); - - /* Different default based on rs_client */ - if (!c->missing_lladdr) - c->missing_lladdr = c->rs_client ? MLL_IGNORE : MLL_SELF; - - /* Different default for gw_mode */ - if (!c->gw_mode) - c->gw_mode = (c->multihop || internal) ? GW_RECURSIVE : GW_DIRECT; -} - static char *bgp_state_names[] = { "Idle", "Connect", "Active", "OpenSent", "OpenConfirm", "Established", "Close" }; static char *bgp_err_classes[] = { "", "Error: ", "Socket: ", "Received: ", "BGP Error: ", "Automatic shutdown: ", ""}; static char *bgp_misc_errors[] = { "", "Neighbor lost", "Invalid next hop", "Kernel MD5 auth failed", "No listening socket" }; @@ -1124,28 +1159,6 @@ bgp_show_proto_info(struct proto *P) } } -static int -bgp_reconfigure(struct proto *P, struct proto_config *C) -{ - struct bgp_config *new = (struct bgp_config *) C; - struct bgp_proto *p = (struct bgp_proto *) P; - struct bgp_config *old = p->cf; - - int same = !memcmp(((byte *) old) + sizeof(struct proto_config), - ((byte *) new) + sizeof(struct proto_config), - // password item is last and must be checked separately - OFFSETOF(struct bgp_config, password) - sizeof(struct proto_config)) - && ((!old->password && !new->password) - || (old->password && new->password && !strcmp(old->password, new->password))) - && (get_igp_table(old) == get_igp_table(new)); - - /* We should update our copy of configuration ptr as old configuration will be freed */ - if (same) - p->cf = new; - - return same; -} - struct protocol proto_bgp = { name: "BGP", template: "bgp%d", @@ -1155,6 +1168,7 @@ struct protocol proto_bgp = { shutdown: bgp_shutdown, cleanup: bgp_cleanup, reconfigure: bgp_reconfigure, + copy_config: bgp_copy_config, get_status: bgp_get_status, get_attr: bgp_get_attr, get_route_info: bgp_get_route_info, |