mirror of
https://gitlab.nic.cz/labs/bird.git
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147 lines
3.7 KiB
Plaintext
147 lines
3.7 KiB
Plaintext
/*
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* BIRD -- Statistics Protocol Configuration
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*
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* (c) 2022 Vojtech Vilimek <vojtech.vilimek@nic.cz>
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* (c) 2022 CZ.NIC z.s.p.o.
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*
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* Can be freely distributed and used under the terms of the GNU GPL.
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*/
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CF_HDR
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#include "proto/snmp/snmp.h"
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#include "proto/snmp/subagent.h"
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CF_DEFINES
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#define SNMP_CFG ((struct snmp_config *) this_proto)
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CF_DECLS
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CF_KEYWORDS(SNMP, PROTOCOL, BGP, LOCAL, AS, REMOTE, ADDRESS, PORT, DESCRIPTION,
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TIMEOUT, PRIORITY, CONTEXT, DEFAULT, MESSAGE)
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CF_GRAMMAR
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proto: snmp_proto ;
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snmp_proto:
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snmp_proto_start proto_name '{' snmp_proto_opts '}' ;
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snmp_proto_item:
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proto_item
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| snmp_bgp_bond
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| LOCAL PORT expr {
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if (($3 < 1) || ($3 > 65535)) cf_error("Invalid port number");
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SNMP_CFG->local_port = $3;
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}
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| REMOTE PORT expr {
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if (($3 < 1) || ($3 > 65535)) cf_error("Invalid port number");
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SNMP_CFG->remote_port = $3;
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}
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| LOCAL ID IP4 { SNMP_CFG->bgp_local_id = $3; }
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| LOCAL ADDRESS IP4 { SNMP_CFG->local_ip = $3; }
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| REMOTE ADDRESS DEFAULT {
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if (SNMP_CFG->trans_type != SNMP_TRANS_DEFAULT)
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cf_error("Duplicit option remote address");
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}
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| REMOTE ADDRESS IP4 {
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if (SNMP_CFG->trans_type != SNMP_TRANS_DEFAULT)
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cf_error("Duplicit option remote address");
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// TODO
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//if (ip4_zero($3)) cf_error("Invalid remote ip address");
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SNMP_CFG->remote_ip = $3;
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SNMP_CFG->trans_type = SNMP_TRANS_TCP;
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}
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| REMOTE ADDRESS text {
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if (SNMP_CFG->trans_type != SNMP_TRANS_DEFAULT)
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cf_error("Duplicit option remote address");
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if (strcmp($3, agentx_master_addr)) {
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SNMP_CFG->remote_path = $3;
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SNMP_CFG->trans_type = SNMP_TRANS_UNIX;
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}
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}
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| LOCAL AS expr {
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if ($3 < 1 || $3 > UINT16_MAX) cf_error("Invalid local AS");
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SNMP_CFG->bgp_local_as = $3;
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}
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| SNMP DESCRIPTION text {
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if (strlen($3) > UINT32_MAX) cf_error("Description is too long");
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SNMP_CFG->description = $3;
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}
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| PRIORITY expr {
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if ($2 > 255) cf_error("Registration priority must be in range 0-255");
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SNMP_CFG->priority = $2;
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}
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| MESSAGE TIMEOUT expr_us {
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/* TODO */
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if ($3 TO_S > 255) log(L_WARN, "%s: msg", this_proto->name);
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if ($3 TO_S < 1) log(L_WARN, "%s: msg", this_proto->name);
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if (($3 TO_S) - (int)($3 TO_S) > 0) log(L_WARN, "%s: ", this_proto->name);
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SNMP_CFG->timeout = $3;
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}
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/*
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| ERROR TIMEOUT expr_us {
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/ * TODO * /
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SNMP_CFG->error_timeout = $3;
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}
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*/
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| START DELAY TIME expr_us { SNMP_CFG->startup_delay = $4; }
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;
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snmp_proto_opts:
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/* empty */
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| snmp_proto_opts snmp_proto_item ';'
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;
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snmp_proto_start: proto_start SNMP
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{
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this_proto = proto_config_new(&proto_snmp, $1);
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init_list(&SNMP_CFG->bgp_entries);
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SNMP_CFG->bonds = 0;
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SNMP_CFG->local_ip = IP4_NONE;
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SNMP_CFG->remote_ip = IP4_NONE;
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SNMP_CFG->remote_path = agentx_master_addr;
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SNMP_CFG->trans_type = SNMP_TRANS_DEFAULT;
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SNMP_CFG->bgp_local_id = IP4_NONE;
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SNMP_CFG->local_port = 0;
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SNMP_CFG->remote_port = 705;
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SNMP_CFG->bgp_local_as = 0;
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SNMP_CFG->description = "bird";
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SNMP_CFG->timeout = 15;
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SNMP_CFG->priority = AGENTX_PRIORITY;
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}
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snmp_bgp_bond: BGP symbol
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{
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/* the snmp_context rule sets the correct value of this_bond */
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cf_assert_symbol($2, SYM_PROTO);
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if (!$2->proto) cf_error("BGP protocol %s not found", $2->name);
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cf_assert($2->proto->protocol == &proto_bgp,
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"SNMP BGP bond accepts only BGP protocols");
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struct bgp_config *bgp_config = SKIP_BACK(struct bgp_config, c, $2->proto);
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if (!ipa_is_ip4(bgp_config->remote_ip))
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cf_error("BGP4-MIB does not support IPv6 addresses.");
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struct snmp_bond *this_bond = cfg_alloc(sizeof(struct snmp_bond));
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this_bond->type = SNMP_BGP;
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this_bond->config = $2->proto;
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add_tail(&SNMP_CFG->bgp_entries, &this_bond->n);
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SNMP_CFG->bonds++;
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}
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CF_CODE
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CF_END
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