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BFD: Add arguments to 'show bfd sessions' command

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Add several arguments to 'show bfd sessions' command to filter
the list of sessions.
This commit is contained in:
Ondrej Zajicek 2024-03-04 23:20:53 +01:00
parent 4737937375
commit 26dd61ee7f
5 changed files with 47 additions and 23 deletions
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1
conf/confbase.Y
View File

@ -89,6 +89,7 @@ CF_DECLS
struct lsadb_show_data *ld;
struct mrt_dump_data *md;
struct mpls_show_ranges_cmd *msrc;
struct bfd_show_sessions_cmd *bssc;
struct iface *iface;
void *g;
btime time;

5
doc/bird.sgml
View File

@ -1288,8 +1288,9 @@ This argument can be omitted if there exists only a single instance.
<tag><label id="cli-show-static">show static [<m/name/]</tag>
Show detailed information about static routes.
<tag><label id="cli-show-bfd-sessions">show bfd sessions [<m/name/]</tag>
Show information about BFD sessions.
<tag><label id="cli-show-bfd-sessions">show bfd sessions [<m/name/] [address (<m/IP/|<m/prefix/)] [(interface|dev) "<m/name/"] [ipv4|ipv6] [direct|multihop] [all]</tag>
Show information about BFD sessions. Options could be used to filter
entries, or in the case of the option <cf/all/ to give verbose output.
<tag><label id="cli-show-symbols">show symbols [table|filter|function|protocol|template|roa|<m/symbol/]</tag>
Show the list of symbols defined in the configuration (names of

17
proto/bfd/bfd.c
View File

@ -1256,7 +1256,7 @@ bfd_show_session(struct bfd_session *s, int details)
}
void
bfd_show_sessions(struct proto *P, int details, net_addr addr)
bfd_show_sessions(struct proto *P, struct bfd_show_sessions_cmd *args)
{
struct bfd_proto *p = (struct bfd_proto *) P;
@ -1267,16 +1267,25 @@ bfd_show_sessions(struct proto *P, int details, net_addr addr)
}
cli_msg(-1020, "%s:", p->p.name);
if (!details)
if (!args->verbose)
cli_msg(-1020, "%-25s %-10s %-10s %-12s %8s %8s",
"IP address", "Interface", "State", "Since", "Interval", "Timeout");
HASH_WALK(p->session_hash_id, next_id, s)
{
if (addr.type != 0 && !ipa_in_netX(s->addr, &addr))
if (args->address.type && !ipa_in_netX(s->addr, &args->address))
continue;
bfd_show_session(s, details);
if (args->iface && (s->ifa->iface != args->iface))
continue;
if (ipa_is_ip4(s->addr) ? args->ipv6 : args->ipv4)
continue;
if (s->ifa->iface ? args->multihop : args->direct)
continue;
bfd_show_session(s, args->verbose);
}
HASH_WALK_END;
}

13
proto/bfd/bfd.h
View File

@ -172,6 +172,17 @@ struct bfd_session
u32 tx_csn_time; /* Timestamp of last tx_csn change */
};
struct bfd_show_sessions_cmd {
net_addr address;
struct iface *iface;
struct symbol *name;
u8 verbose;
u8 ipv4;
u8 ipv6;
u8 direct;
u8 multihop;
};
extern const char *bfd_state_names[];
@ -218,7 +229,7 @@ static inline void bfd_unlock_sessions(struct bfd_proto *p) { pthread_spin_unloc
struct bfd_session * bfd_find_session_by_id(struct bfd_proto *p, u32 id);
struct bfd_session * bfd_find_session_by_addr(struct bfd_proto *p, ip_addr addr, uint ifindex);
void bfd_session_process_ctl(struct bfd_session *s, u8 flags, u32 old_tx_int, u32 old_rx_int);
void bfd_show_sessions(struct proto *P, int details, net_addr addr);
void bfd_show_sessions(struct proto *P, struct bfd_show_sessions_cmd *args);
/* packets.c */
void bfd_send_ctl(struct bfd_proto *p, struct bfd_session *s, int final);

34
proto/bfd/config.Y
View File

@ -29,7 +29,7 @@ CF_KEYWORDS(BFD, MIN, IDLE, RX, TX, INTERVAL, MULTIPLIER, PASSIVE,
%type <iface> bfd_neigh_iface
%type <a> bfd_neigh_local
%type <i> bfd_neigh_multihop bfd_auth_type
%type <net> opt_addr
%type <bssc> bfd_show_sessions_args
CF_GRAMMAR
@ -182,24 +182,26 @@ bfd_neighbor: ipa bfd_neigh_iface bfd_neigh_local bfd_neigh_multihop
cf_error("Multihop neighbor requires specified local address");
};
opt_addr:
/* empty */ {
net_addr addr;
addr.type = 0;
$$ = addr; }
| net_ip4_
| net_ip6_
| IP4 { net_fill_ip4(&($$), $1, IP4_MAX_PREFIX_LENGTH); }
| IP6 { net_fill_ip6(&($$), $1, IP6_MAX_PREFIX_LENGTH); }
CF_CLI_HELP(SHOW BFD, ..., [[Show information about BFD protocol]]);
CF_CLI(SHOW BFD SESSIONS, optproto opt_addr, [<name>] [<addr>], [[Show information about BFD sessions]])
{ PROTO_WALK_CMD($4, &proto_bfd, p) bfd_show_sessions(p, 0, $5); };
CF_CLI(SHOW BFD SESSIONS ALL, optproto opt_addr, [<name>] [<addr>], [[Show information about BFD sessions]])
{ PROTO_WALK_CMD($5, &proto_bfd, p) bfd_show_sessions(p, 1, $6); };
CF_CLI_HELP(SHOW BFD SESSIONS, ..., [[Show information about BFD sessions]]);
CF_CLI(SHOW BFD SESSIONS, bfd_show_sessions_args, [<name>] [address <ip|prefix>] [(interface|dev) \"<name>\"] [ipv4|ipv6] [direct|multihop] [all], [[Show information about BFD sessions]])
{ PROTO_WALK_CMD($4->name, &proto_bfd, p) bfd_show_sessions(p, $4); };
bfd_show_sessions_args:
/* empty */ { $$ = cfg_allocz(sizeof(struct bfd_show_sessions_cmd)); }
| bfd_show_sessions_args CF_SYM_KNOWN { cf_assert_symbol($2, SYM_PROTO); $$->name = $2; }
| bfd_show_sessions_args ADDRESS net_or_ipa { net_copy(&($$->address), &($3)); }
| bfd_show_sessions_args INTERFACE text { $$->iface = if_get_by_name($3); }
| bfd_show_sessions_args DEV text { $$->iface = if_get_by_name($3); }
| bfd_show_sessions_args ALL { $$->verbose = 1; }
| bfd_show_sessions_args IPV4 { $$->ipv4 = 1; if ($$->ipv6) cf_error("Options 'ipv4' and 'ipv6' are mutually exclusive"); }
| bfd_show_sessions_args IPV6 { $$->ipv6 = 1; if ($$->ipv4) cf_error("Options 'ipv4' and 'ipv6' are mutually exclusive"); }
| bfd_show_sessions_args DIRECT { $$->direct = 1; if ($$->multihop) cf_error("Options 'direct' and 'multihop' are mutually exclusive"); }
| bfd_show_sessions_args MULTIHOP { $$->multihop = 1; if ($$->direct) cf_error("Options 'direct' and 'multihop' are mutually exclusive"); }
;
CF_CODE