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bgpd: Return success if lcomm/comm/extcomm name or entry is not found

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Problem:
Currently bgp prints `Can't find community-list` and returns CMD_WARNING_CONFIG_FAILED
error if name or an entry for community, large-community and ext-community is not found. This
causes frr-reload to fail.

Fix:
Return success if community, large-community and ext-community name or
an entry is not found.

Ticket:#3900813
Testing Done:

Before fix:
```
root@tor-4:mgmt:/var/home/cumulus# cat /etc/frr/frr.conf
<SNIP>
bgp large-community-list standard lc22 seq 10 permit 4200857911:011:01 4200857911:011:011555
no bgp large-community-list standard lc22 seq 10 permit 4200857911:011:01
<SNIP>

root@tor-4:mgmt:/var/home/cumulus# systemctl reload frr
Job for frr.service failed.
See "systemctl status frr.service" and "journalctl -xeu frr.service" for details.

Syslog:
<SNIP>
2024-05-21T21:02:51.525965+00:00 tor-4 frrinit.sh[2349145]: % Can't find community-list
2024-05-21T21:02:51.526487+00:00 tor-4 staticd[6167]: [VTVCM-Y2NW3] Configuration Read in Took: 00:00:00
2024-05-21T21:02:51.526595+00:00 tor-4 frrinit.sh[2349155]: [2349155|staticd] done
2024-05-21T21:02:51.526826+00:00 tor-4 frrinit.sh[2349145]: line 176: Failure to communicate[13] to bgpd, line: no bgp large-community-list standard lc22 seq 10 permit 4200857911:011:01
2024-05-21T21:02:51.527928+00:00 tor-4 frrinit.sh[2349153]: [2349153|watchfrr] done
2024-05-21T21:02:51.528382+00:00 tor-4 frrinit.sh[2349145]: [2349145|bgpd] Configuration file[/etc/frr/frr.conf] processing failure: 13
<SNIP>
```

After fix:
```
root@tor-4:mgmt:/var/home/cumulus# cat /etc/frr/frr.conf
<SNIP>
bgp large-community-list standard lc22 seq 10 permit 4200857911:011:01 4200857911:011:011555
no bgp large-community-list standard lc22 seq 10 permit 4200857911:011:01
<SNIP>

root@tor-4:mgmt:/var/home/cumulus# systemctl reload frr
root@tor-4:mgmt:/var/home/cumulus#

root@tor-4:mgmt:/var/home/cumulus# vtysh -c "show run" | grep lc22
bgp large-community-list standard lc22 seq 10 permit 4200857911:11:1 4200857911:11:11555
root@tor-4:mgmt:/var/home/cumulus#
```

Signed-off-by: Pooja Jagadeesh Doijode <pdoijode@nvidia.com>
Signed-off-by: Chirag Shah <chirag@nvidia.com>
This commit is contained in:
Pooja Jagadeesh Doijode 2024-05-17 12:03:20 -07:00
parent 4bd16486e9
commit 773a45ef29
3 changed files with 38 additions and 70 deletions
Show Stats Download Patch File Download Diff File Expand all files Collapse all files

44
bgpd/bgp_clist.c
View File

@ -904,9 +904,9 @@ int community_list_set(struct community_list_handler *ch, const char *name,
}
/* Unset community-list */
int community_list_unset(struct community_list_handler *ch, const char *name,
const char *str, const char *seq, int direct,
int style)
void community_list_unset(struct community_list_handler *ch, const char *name,
const char *str, const char *seq, int direct,
int style)
{
struct community_list_master *cm = NULL;
struct community_entry *entry = NULL;
@ -916,14 +916,14 @@ int community_list_unset(struct community_list_handler *ch, const char *name,
/* Lookup community list. */
list = community_list_lookup(ch, name, 0, COMMUNITY_LIST_MASTER);
if (list == NULL)
return COMMUNITY_LIST_ERR_CANT_FIND_LIST;
return;
cm = community_list_master_lookup(ch, COMMUNITY_LIST_MASTER);
/* Delete all of entry belongs to this community-list. */
if (!str) {
community_list_delete(cm, list);
route_map_notify_dependencies(name, RMAP_EVENT_CLIST_DELETED);
return 0;
return;
}
if (style == COMMUNITY_LIST_STANDARD)
@ -936,12 +936,10 @@ int community_list_unset(struct community_list_handler *ch, const char *name,
entry = community_list_entry_lookup(list, str, direct);
if (!entry)
return COMMUNITY_LIST_ERR_CANT_FIND_LIST;
return;
community_list_entry_delete(cm, list, entry);
route_map_notify_dependencies(name, RMAP_EVENT_CLIST_DELETED);
return 0;
}
bool lcommunity_list_any_match(struct lcommunity *lcom,
@ -1172,9 +1170,9 @@ int lcommunity_list_set(struct community_list_handler *ch, const char *name,
/* Unset community-list. When str is NULL, delete all of
community-list entry belongs to the specified name. */
int lcommunity_list_unset(struct community_list_handler *ch, const char *name,
const char *str, const char *seq, int direct,
int style)
void lcommunity_list_unset(struct community_list_handler *ch, const char *name,
const char *str, const char *seq, int direct,
int style)
{
struct community_list_master *cm = NULL;
struct community_entry *entry = NULL;
@ -1185,14 +1183,14 @@ int lcommunity_list_unset(struct community_list_handler *ch, const char *name,
/* Lookup community list. */
list = community_list_lookup(ch, name, 0, LARGE_COMMUNITY_LIST_MASTER);
if (list == NULL)
return COMMUNITY_LIST_ERR_CANT_FIND_LIST;
return;
cm = community_list_master_lookup(ch, LARGE_COMMUNITY_LIST_MASTER);
/* Delete all of entry belongs to this community-list. */
if (!str) {
community_list_delete(cm, list);
route_map_notify_dependencies(name, RMAP_EVENT_LLIST_DELETED);
return 0;
return;
}
if (style == LARGE_COMMUNITY_LIST_STANDARD)
@ -1201,7 +1199,7 @@ int lcommunity_list_unset(struct community_list_handler *ch, const char *name,
regex = bgp_regcomp(str);
if (!lcom && !regex)
return COMMUNITY_LIST_ERR_MALFORMED_VAL;
return;
if (lcom)
entry = community_list_entry_lookup(list, lcom, direct);
@ -1214,12 +1212,10 @@ int lcommunity_list_unset(struct community_list_handler *ch, const char *name,
bgp_regex_free(regex);
if (!entry)
return COMMUNITY_LIST_ERR_CANT_FIND_LIST;
return;
community_list_entry_delete(cm, list, entry);
route_map_notify_dependencies(name, RMAP_EVENT_LLIST_DELETED);
return 0;
}
/* Set extcommunity-list. */
@ -1299,9 +1295,9 @@ int extcommunity_list_set(struct community_list_handler *ch, const char *name,
* When str is NULL, delete all extcommunity-list entries belonging to the
* specified name.
*/
int extcommunity_list_unset(struct community_list_handler *ch, const char *name,
const char *str, const char *seq, int direct,
int style)
void extcommunity_list_unset(struct community_list_handler *ch,
const char *name, const char *str, const char *seq,
int direct, int style)
{
struct community_list_master *cm = NULL;
struct community_entry *entry = NULL;
@ -1311,14 +1307,14 @@ int extcommunity_list_unset(struct community_list_handler *ch, const char *name,
/* Lookup extcommunity list. */
list = community_list_lookup(ch, name, 0, EXTCOMMUNITY_LIST_MASTER);
if (list == NULL)
return COMMUNITY_LIST_ERR_CANT_FIND_LIST;
return;
cm = community_list_master_lookup(ch, EXTCOMMUNITY_LIST_MASTER);
/* Delete all of entry belongs to this extcommunity-list. */
if (!str) {
community_list_delete(cm, list);
route_map_notify_dependencies(name, RMAP_EVENT_ECLIST_DELETED);
return 0;
return;
}
if (style == EXTCOMMUNITY_LIST_STANDARD)
@ -1331,12 +1327,10 @@ int extcommunity_list_unset(struct community_list_handler *ch, const char *name,
entry = community_list_entry_lookup(list, str, direct);
if (!entry)
return COMMUNITY_LIST_ERR_CANT_FIND_LIST;
return;
community_list_entry_delete(cm, list, entry);
route_map_notify_dependencies(name, RMAP_EVENT_ECLIST_DELETED);
return 0;
}
/* Initializa community-list. Return community-list handler. */

18
bgpd/bgp_clist.h
View File

@ -124,22 +124,22 @@ extern void community_list_terminate(struct community_list_handler *ch);
extern int community_list_set(struct community_list_handler *ch,
const char *name, const char *str,
const char *seq, int direct, int style);
extern int community_list_unset(struct community_list_handler *ch,
const char *name, const char *str,
const char *seq, int direct, int style);
extern void community_list_unset(struct community_list_handler *ch,
const char *name, const char *str,
const char *seq, int direct, int style);
extern int extcommunity_list_set(struct community_list_handler *ch,
const char *name, const char *str,
const char *seq, int direct, int style);
extern int extcommunity_list_unset(struct community_list_handler *ch,
const char *name, const char *str,
const char *seq, int direct, int style);
extern void extcommunity_list_unset(struct community_list_handler *ch,
const char *name, const char *str,
const char *seq, int direct, int style);
extern int lcommunity_list_set(struct community_list_handler *ch,
const char *name, const char *str,
const char *seq, int direct, int style);
extern bool lcommunity_list_valid(const char *community, int style);
extern int lcommunity_list_unset(struct community_list_handler *ch,
const char *name, const char *str,
const char *seq, int direct, int style);
extern void lcommunity_list_unset(struct community_list_handler *ch,
const char *name, const char *str,
const char *seq, int direct, int style);
extern struct community_list_master *
community_list_master_lookup(struct community_list_handler *ch, int master);

46
bgpd/bgp_vty.c
View File

@ -21827,16 +21827,11 @@ DEFUN (no_community_list_standard_all,
argv_find(argv, argc, "COMMUNITY_LIST_NAME", &idx);
cl_name_or_number = argv[idx]->arg;
int ret = community_list_unset(bgp_clist, cl_name_or_number, str, seq,
direct, style);
community_list_unset(bgp_clist, cl_name_or_number, str, seq, direct,
style);
XFREE(MTYPE_TMP, str);
if (ret < 0) {
community_list_perror(vty, ret);
return CMD_WARNING_CONFIG_FAILED;
}
return CMD_SUCCESS;
}
@ -21940,16 +21935,11 @@ DEFUN (no_community_list_expanded_all,
argv_find(argv, argc, "COMMUNITY_LIST_NAME", &idx);
cl_name_or_number = argv[idx]->arg;
int ret = community_list_unset(bgp_clist, cl_name_or_number, str, seq,
direct, style);
community_list_unset(bgp_clist, cl_name_or_number, str, seq, direct,
style);
XFREE(MTYPE_TMP, str);
if (ret < 0) {
community_list_perror(vty, ret);
return CMD_WARNING_CONFIG_FAILED;
}
return CMD_SUCCESS;
}
@ -22105,7 +22095,6 @@ static int lcommunity_list_set_vty(struct vty *vty, int argc,
static int lcommunity_list_unset_vty(struct vty *vty, int argc,
struct cmd_token **argv, int style)
{
int ret;
int direct = 0;
char *str = NULL;
int idx = 0;
@ -22138,18 +22127,13 @@ static int lcommunity_list_unset_vty(struct vty *vty, int argc,
argv_find(argv, argc, "LCOMMUNITY_LIST_NAME", &idx);
/* Unset community list. */
ret = lcommunity_list_unset(bgp_clist, argv[idx]->arg, str, seq, direct,
style);
lcommunity_list_unset(bgp_clist, argv[idx]->arg, str, seq, direct,
style);
/* Free temporary community list string allocated by
argv_concat(). */
XFREE(MTYPE_TMP, str);
if (ret < 0) {
community_list_perror(vty, ret);
return CMD_WARNING_CONFIG_FAILED;
}
return CMD_SUCCESS;
}
@ -22546,16 +22530,11 @@ DEFUN (no_extcommunity_list_standard_all,
argv_find(argv, argc, "EXTCOMMUNITY_LIST_NAME", &idx);
cl_number_or_name = argv[idx]->arg;
int ret = extcommunity_list_unset(bgp_clist, cl_number_or_name, str,
seq, direct, style);
extcommunity_list_unset(bgp_clist, cl_number_or_name, str, seq, direct,
style);
XFREE(MTYPE_TMP, str);
if (ret < 0) {
community_list_perror(vty, ret);
return CMD_WARNING_CONFIG_FAILED;
}
return CMD_SUCCESS;
}
@ -22611,16 +22590,11 @@ DEFUN (no_extcommunity_list_expanded_all,
argv_find(argv, argc, "EXTCOMMUNITY_LIST_NAME", &idx);
cl_number_or_name = argv[idx]->arg;
int ret = extcommunity_list_unset(bgp_clist, cl_number_or_name, str,
seq, direct, style);
extcommunity_list_unset(bgp_clist, cl_number_or_name, str, seq, direct,
style);
XFREE(MTYPE_TMP, str);
if (ret < 0) {
community_list_perror(vty, ret);
return CMD_WARNING_CONFIG_FAILED;
}
return CMD_SUCCESS;
}