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bgpd : Support for exact-match in match clause for lcommunity

Browse Source 
FRR has a provision to give exact-match in match clause for
standard community, but this option is missing for lcommunity.

Part 3 : show related changes for match clause

Signed-off-by: vishaldhingra <vdhingra@vmware.com>
This commit is contained in:
vishaldhingra 2019-05-06 03:59:19 -07:00
parent 03ff9a1410
commit 36a206db61
3 changed files with 91 additions and 14 deletions
Show Stats Download Patch File Download Diff File Expand all files Collapse all files

62
bgpd/bgp_route.c
View File

@ -9168,6 +9168,15 @@ static int bgp_show_table(struct vty *vty, struct bgp *bgp, safi_t safi,
lcom))
continue;
}
if (type == bgp_show_type_lcommunity_exact) {
struct lcommunity *lcom = output_arg;
if (!pi->attr->lcommunity
|| !lcommunity_cmp(pi->attr->lcommunity,
lcom))
continue;
}
if (type == bgp_show_type_lcommunity_list) {
struct community_list *list = output_arg;
@ -9175,6 +9184,14 @@ static int bgp_show_table(struct vty *vty, struct bgp *bgp, safi_t safi,
list))
continue;
}
if (type
== bgp_show_type_lcommunity_list_exact) {
struct community_list *list = output_arg;
if (!lcommunity_list_exact_match(
pi->attr->lcommunity, list))
continue;
}
if (type == bgp_show_type_lcommunity_all) {
if (!pi->attr->lcommunity)
continue;
@ -9798,8 +9815,8 @@ static int bgp_show_route(struct vty *vty, struct bgp *bgp, const char *ip_str,
}
static int bgp_show_lcommunity(struct vty *vty, struct bgp *bgp, int argc,
struct cmd_token **argv, afi_t afi, safi_t safi,
bool uj)
struct cmd_token **argv, bool exact, afi_t afi,
safi_t safi, bool uj)
{
struct lcommunity *lcom;
struct buffer *b;
@ -9830,13 +9847,15 @@ static int bgp_show_lcommunity(struct vty *vty, struct bgp *bgp, int argc,
return CMD_WARNING;
}
return bgp_show(vty, bgp, afi, safi, bgp_show_type_lcommunity, lcom,
uj);
return bgp_show(vty, bgp, afi, safi,
(exact ? bgp_show_type_lcommunity_exact
: bgp_show_type_lcommunity),
lcom, uj);
}
static int bgp_show_lcommunity_list(struct vty *vty, struct bgp *bgp,
const char *lcom, afi_t afi, safi_t safi,
bool uj)
const char *lcom, bool exact, afi_t afi,
safi_t safi, bool uj)
{
struct community_list *list;
@ -9848,13 +9867,15 @@ static int bgp_show_lcommunity_list(struct vty *vty, struct bgp *bgp,
return CMD_WARNING;
}
return bgp_show(vty, bgp, afi, safi, bgp_show_type_lcommunity_list,
return bgp_show(vty, bgp, afi, safi,
(exact ? bgp_show_type_lcommunity_list_exact
: bgp_show_type_lcommunity_list),
list, uj);
}
DEFUN (show_ip_bgp_large_community_list,
show_ip_bgp_large_community_list_cmd,
"show [ip] bgp [<view|vrf> VIEWVRFNAME] ["BGP_AFI_CMD_STR" ["BGP_SAFI_WITH_LABEL_CMD_STR"]] large-community-list <(1-500)|WORD> [json]",
"show [ip] bgp [<view|vrf> VIEWVRFNAME] ["BGP_AFI_CMD_STR" ["BGP_SAFI_WITH_LABEL_CMD_STR"]] large-community-list <(1-500)|WORD> [exact-match] [json]",
SHOW_STR
IP_STR
BGP_STR
@ -9864,12 +9885,14 @@ DEFUN (show_ip_bgp_large_community_list,
"Display routes matching the large-community-list\n"
"large-community-list number\n"
"large-community-list name\n"
"Exact match of the large-communities\n"
JSON_STR)
{
char *vrf = NULL;
afi_t afi = AFI_IP6;
safi_t safi = SAFI_UNICAST;
int idx = 0;
bool exact_match = 0;
if (argv_find(argv, argc, "ip", &idx))
afi = AFI_IP;
@ -9893,12 +9916,18 @@ DEFUN (show_ip_bgp_large_community_list,
}
argv_find(argv, argc, "large-community-list", &idx);
return bgp_show_lcommunity_list(vty, bgp, argv[idx + 1]->arg, afi, safi,
uj);
const char *clist_number_or_name = argv[++idx]->arg;
if (++idx < argc && strmatch(argv[idx]->text, "exact-match"))
exact_match = 1;
return bgp_show_lcommunity_list(vty, bgp, clist_number_or_name,
exact_match, afi, safi, uj);
}
DEFUN (show_ip_bgp_large_community,
show_ip_bgp_large_community_cmd,
"show [ip] bgp [<view|vrf> VIEWVRFNAME] ["BGP_AFI_CMD_STR" ["BGP_SAFI_WITH_LABEL_CMD_STR"]] large-community [AA:BB:CC] [json]",
"show [ip] bgp [<view|vrf> VIEWVRFNAME] ["BGP_AFI_CMD_STR" ["BGP_SAFI_WITH_LABEL_CMD_STR"]] large-community [<AA:BB:CC> [exact-match]] [json]",
SHOW_STR
IP_STR
BGP_STR
@ -9907,12 +9936,14 @@ DEFUN (show_ip_bgp_large_community,
BGP_SAFI_WITH_LABEL_HELP_STR
"Display routes matching the large-communities\n"
"List of large-community numbers\n"
"Exact match of the large-communities\n"
JSON_STR)
{
char *vrf = NULL;
afi_t afi = AFI_IP6;
safi_t safi = SAFI_UNICAST;
int idx = 0;
bool exact_match = 0;
if (argv_find(argv, argc, "ip", &idx))
afi = AFI_IP;
@ -9935,9 +9966,12 @@ DEFUN (show_ip_bgp_large_community,
return CMD_WARNING;
}
if (argv_find(argv, argc, "AA:BB:CC", &idx))
return bgp_show_lcommunity(vty, bgp, argc, argv, afi, safi, uj);
else
if (argv_find(argv, argc, "AA:BB:CC", &idx)) {
if (argv_find(argv, argc, "exact-match", &idx))
exact_match = 1;
return bgp_show_lcommunity(vty, bgp, argc, argv,
exact_match, afi, safi, uj);
} else
return bgp_show(vty, bgp, afi, safi,
bgp_show_type_lcommunity_all, NULL, uj);
}

2
bgpd/bgp_route.h
View File

@ -45,7 +45,9 @@ enum bgp_show_type {
bgp_show_type_community_list_exact,
bgp_show_type_lcommunity_all,
bgp_show_type_lcommunity,
bgp_show_type_lcommunity_exact,
bgp_show_type_lcommunity_list,
bgp_show_type_lcommunity_list_exact,
bgp_show_type_flap_statistics,
bgp_show_type_flap_neighbor,
bgp_show_type_dampend_paths,

41
doc/user/bgp.rst
View File

@ -2298,8 +2298,49 @@ attribute.
match the specified community list. When `exact-match` is specified, it
displays only routes that have an exact match.
.. _bgp-display-routes-by-lcommunity:
Displaying Routes by Large Community Attribute
----------------------------------------------
The following commands allow displaying routes based on their
large community attribute.
.. index:: show [ip] bgp <ipv4|ipv6> large-community
.. clicmd:: show [ip] bgp <ipv4|ipv6> large-community
.. index:: show [ip] bgp <ipv4|ipv6> large-community LARGE-COMMUNITY
.. clicmd:: show [ip] bgp <ipv4|ipv6> large-community LARGE-COMMUNITY
.. index:: show [ip] bgp <ipv4|ipv6> large-community LARGE-COMMUNITY exact-match
.. clicmd:: show [ip] bgp <ipv4|ipv6> large-community LARGE-COMMUNITY exact-match
.. index:: show [ip] bgp <ipv4|ipv6> large-community LARGE-COMMUNITY json
.. clicmd:: show [ip] bgp <ipv4|ipv6> large-community LARGE-COMMUNITY json
These commands display BGP routes which have the large community attribute.
attribute. When ``LARGE-COMMUNITY`` is specified, BGP routes that match that
large community are displayed. When `exact-match` is specified, it display
only routes that have an exact match. When `json` is specified, it display
routes in json format.
.. index:: show [ip] bgp <ipv4|ipv6> large-community-list WORD
.. clicmd:: show [ip] bgp <ipv4|ipv6> large-community-list WORD
.. index:: show [ip] bgp <ipv4|ipv6> large-community-list WORD exact-match
.. clicmd:: show [ip] bgp <ipv4|ipv6> large-community-list WORD exact-match
.. index:: show [ip] bgp <ipv4|ipv6> large-community-list WORD json
.. clicmd:: show [ip] bgp <ipv4|ipv6> large-community-list WORD json
These commands display BGP routes for the address family specified that
match the specified large community list. When `exact-match` is specified,
it displays only routes that have an exact match. When `json` is specified,
it display routes in json format.
.. _bgp-display-routes-by-as-path:
Displaying Routes by AS Path
----------------------------