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ospfd: refactor the "area nssa" command using DEFPY

Browse Source 
Combine all variation of the "area nssa" command into a single
DEFPY to improve code maintainability.

Signed-off-by: Renato Westphal <renato@opensourcerouting.org>
This commit is contained in:
Renato Westphal 2023-03-07 21:13:53 -03:00
parent 44e90d5521
commit e85194f572
4 changed files with 56 additions and 181 deletions
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204
ospfd/ospf_vty.c
View File

@ -1433,15 +1433,29 @@ DEFUN (no_ospf_area_stub_no_summary,
return CMD_SUCCESS;
}
static int ospf_area_nssa_cmd_handler(struct vty *vty, int argc,
struct cmd_token **argv, int cfg_nosum,
int nosum)
DEFPY (ospf_area_nssa,
ospf_area_nssa_cmd,
"area <A.B.C.D|(0-4294967295)>$area_str nssa\
[{\
<translate-candidate|translate-never|translate-always>$translator_role\
|no-summary$no_summary\
|suppress-fa$suppress_fa\
}]",
"OSPF area parameters\n"
"OSPF area ID in IP address format\n"
"OSPF area ID as a decimal value\n"
"Configure OSPF area as nssa\n"
"Configure NSSA-ABR for translate election (default)\n"
"Configure NSSA-ABR to never translate\n"
"Configure NSSA-ABR to always translate\n"
"Do not inject inter-area routes into nssa\n"
"Suppress forwarding address\n")
{
VTY_DECLVAR_INSTANCE_CONTEXT(ospf, ospf);
struct in_addr area_id;
int ret, format;
VTY_GET_OSPF_AREA_ID_NO_BB("NSSA", area_id, format, argv[1]->arg);
VTY_GET_OSPF_AREA_ID_NO_BB("NSSA", area_id, format, area_str);
ret = ospf_area_nssa_set(ospf, area_id);
ospf_area_display_format_set(ospf, ospf_area_get(ospf, area_id),
@ -1452,14 +1466,14 @@ static int ospf_area_nssa_cmd_handler(struct vty *vty, int argc,
return CMD_WARNING_CONFIG_FAILED;
}
if (argc > 3) {
if (strncmp(argv[3]->text, "translate-c", 11) == 0)
if (translator_role) {
if (strncmp(translator_role, "translate-c", 11) == 0)
ospf_area_nssa_translator_role_set(
ospf, area_id, OSPF_NSSA_ROLE_CANDIDATE);
else if (strncmp(argv[3]->text, "translate-n", 11) == 0)
else if (strncmp(translator_role, "translate-n", 11) == 0)
ospf_area_nssa_translator_role_set(
ospf, area_id, OSPF_NSSA_ROLE_NEVER);
else if (strncmp(argv[3]->text, "translate-a", 11) == 0)
else if (strncmp(translator_role, "translate-a", 11) == 0)
ospf_area_nssa_translator_role_set(
ospf, area_id, OSPF_NSSA_ROLE_ALWAYS);
} else {
@ -1467,12 +1481,15 @@ static int ospf_area_nssa_cmd_handler(struct vty *vty, int argc,
OSPF_NSSA_ROLE_CANDIDATE);
}
if (cfg_nosum) {
if (nosum)
ospf_area_no_summary_set(ospf, area_id);
else
ospf_area_no_summary_unset(ospf, area_id);
}
if (no_summary)
ospf_area_nssa_no_summary_set(ospf, area_id);
else
ospf_area_no_summary_unset(ospf, area_id);
if (suppress_fa)
ospf_area_nssa_suppress_fa_set(ospf, area_id);
else
ospf_area_nssa_suppress_fa_unset(ospf, area_id);
/* Flush the external LSA for the specified area */
ospf_flush_lsa_from_area(ospf, area_id, OSPF_AS_EXTERNAL_LSA);
@ -1482,141 +1499,14 @@ static int ospf_area_nssa_cmd_handler(struct vty *vty, int argc,
return CMD_SUCCESS;
}
DEFUN (ospf_area_nssa_translate,
ospf_area_nssa_translate_cmd,
"area <A.B.C.D|(0-4294967295)> nssa <translate-candidate|translate-never|translate-always>",
"OSPF area parameters\n"
"OSPF area ID in IP address format\n"
"OSPF area ID as a decimal value\n"
"Configure OSPF area as nssa\n"
"Configure NSSA-ABR for translate election (default)\n"
"Configure NSSA-ABR to never translate\n"
"Configure NSSA-ABR to always translate\n")
{
return ospf_area_nssa_cmd_handler(vty, argc, argv, 0, 0);
}
DEFUN (ospf_area_nssa,
ospf_area_nssa_cmd,
"area <A.B.C.D|(0-4294967295)> nssa",
"OSPF area parameters\n"
"OSPF area ID in IP address format\n"
"OSPF area ID as a decimal value\n"
"Configure OSPF area as nssa\n")
{
return ospf_area_nssa_cmd_handler(vty, argc, argv, 0, 0);
}
DEFUN(ospf_area_nssa_suppress_fa, ospf_area_nssa_suppress_fa_cmd,
"area <A.B.C.D|(0-4294967295)> nssa suppress-fa",
"OSPF area parameters\n"
"OSPF area ID in IP address format\n"
"OSPF area ID as a decimal value\n"
"Configure OSPF area as nssa\n"
"Suppress forwarding address\n")
{
int idx_ipv4_number = 1;
struct in_addr area_id;
int format;
VTY_DECLVAR_INSTANCE_CONTEXT(ospf, ospf);
VTY_GET_OSPF_AREA_ID_NO_BB("NSSA", area_id, format,
argv[idx_ipv4_number]->arg);
ospf_area_display_format_set(ospf, ospf_area_get(ospf, area_id),
format);
ospf_area_nssa_suppress_fa_set(ospf, area_id);
ospf_schedule_abr_task(ospf);
return CMD_SUCCESS;
}
DEFUN(no_ospf_area_nssa_suppress_fa, no_ospf_area_nssa_suppress_fa_cmd,
"no area <A.B.C.D|(0-4294967295)> nssa suppress-fa",
NO_STR
"OSPF area parameters\n"
"OSPF area ID in IP address format\n"
"OSPF area ID as a decimal value\n"
"Configure OSPF area as nssa\n"
"Suppress forwarding address\n")
{
int idx_ipv4_number = 2;
struct in_addr area_id;
int format;
VTY_DECLVAR_INSTANCE_CONTEXT(ospf, ospf);
VTY_GET_OSPF_AREA_ID_NO_BB("nssa", area_id, format,
argv[idx_ipv4_number]->arg);
ospf_area_display_format_set(ospf, ospf_area_get(ospf, area_id),
format);
ospf_area_nssa_suppress_fa_unset(ospf, area_id);
ospf_schedule_abr_task(ospf);
return CMD_SUCCESS;
}
DEFUN (ospf_area_nssa_no_summary,
ospf_area_nssa_no_summary_cmd,
"area <A.B.C.D|(0-4294967295)> nssa no-summary",
"OSPF area parameters\n"
"OSPF area ID in IP address format\n"
"OSPF area ID as a decimal value\n"
"Configure OSPF area as nssa\n"
"Do not inject inter-area routes into nssa\n")
{
int idx_ipv4_number = 1;
struct in_addr area_id;
int format;
VTY_DECLVAR_INSTANCE_CONTEXT(ospf, ospf);
VTY_GET_OSPF_AREA_ID_NO_BB("NSSA", area_id, format,
argv[idx_ipv4_number]->arg);
ospf_area_display_format_set(ospf, ospf_area_get(ospf, area_id),
format);
ospf_area_nssa_no_summary_set(ospf, area_id);
ospf_schedule_abr_task(ospf);
return CMD_SUCCESS;
}
DEFUN (no_ospf_area_nssa_no_summary,
no_ospf_area_nssa_no_summary_cmd,
"no area <A.B.C.D|(0-4294967295)> nssa no-summary",
NO_STR
"OSPF area parameters\n"
"OSPF area ID in IP address format\n"
"OSPF area ID as a decimal value\n"
"Configure OSPF area as nssa\n"
"Do not inject inter-area routes into nssa\n")
{
int idx_ipv4_number = 2;
struct in_addr area_id;
int format;
VTY_DECLVAR_INSTANCE_CONTEXT(ospf, ospf);
VTY_GET_OSPF_AREA_ID_NO_BB("nssa", area_id, format,
argv[idx_ipv4_number]->arg);
ospf_area_display_format_set(ospf, ospf_area_get(ospf, area_id),
format);
ospf_area_no_summary_unset(ospf, area_id);
ospf_schedule_abr_task(ospf);
return CMD_SUCCESS;
}
DEFUN (no_ospf_area_nssa,
DEFPY (no_ospf_area_nssa,
no_ospf_area_nssa_cmd,
"no area <A.B.C.D|(0-4294967295)> nssa [<translate-candidate|translate-never|translate-always>]",
"no area <A.B.C.D|(0-4294967295)>$area_str nssa\
[{\
<translate-candidate|translate-never|translate-always>\
|no-summary\
|suppress-fa\
}]",
NO_STR
"OSPF area parameters\n"
"OSPF area ID in IP address format\n"
@ -1624,26 +1514,27 @@ DEFUN (no_ospf_area_nssa,
"Configure OSPF area as nssa\n"
"Configure NSSA-ABR for translate election (default)\n"
"Configure NSSA-ABR to never translate\n"
"Configure NSSA-ABR to always translate\n")
"Configure NSSA-ABR to always translate\n"
"Do not inject inter-area routes into nssa\n"
"Suppress forwarding address\n")
{
VTY_DECLVAR_INSTANCE_CONTEXT(ospf, ospf);
int idx_ipv4_number = 2;
struct in_addr area_id;
int format;
VTY_GET_OSPF_AREA_ID_NO_BB("NSSA", area_id, format,
argv[idx_ipv4_number]->arg);
VTY_GET_OSPF_AREA_ID_NO_BB("NSSA", area_id, format, area_str);
/* Flush the NSSA LSA for the specified area */
ospf_flush_lsa_from_area(ospf, area_id, OSPF_AS_NSSA_LSA);
ospf_area_nssa_unset(ospf, area_id, argc);
ospf_area_no_summary_unset(ospf, area_id);
ospf_area_nssa_suppress_fa_unset(ospf, area_id);
ospf_area_nssa_unset(ospf, area_id);
ospf_schedule_abr_task(ospf);
return CMD_SUCCESS;
}
DEFUN (ospf_area_default_cost,
ospf_area_default_cost_cmd,
"area <A.B.C.D|(0-4294967295)> default-cost (0-16777215)",
@ -13029,11 +12920,6 @@ void ospf_vty_init(void)
/* "area nssa" commands. */
install_element(OSPF_NODE, &ospf_area_nssa_cmd);
install_element(OSPF_NODE, &ospf_area_nssa_translate_cmd);
install_element(OSPF_NODE, &ospf_area_nssa_no_summary_cmd);
install_element(OSPF_NODE, &no_ospf_area_nssa_no_summary_cmd);
install_element(OSPF_NODE, &ospf_area_nssa_suppress_fa_cmd);
install_element(OSPF_NODE, &no_ospf_area_nssa_suppress_fa_cmd);
install_element(OSPF_NODE, &no_ospf_area_nssa_cmd);
install_element(OSPF_NODE, &ospf_area_default_cost_cmd);

26
ospfd/ospfd.c
View File

@ -1701,7 +1701,7 @@ int ospf_area_nssa_set(struct ospf *ospf, struct in_addr area_id)
return 1;
}
int ospf_area_nssa_unset(struct ospf *ospf, struct in_addr area_id, int argc)
int ospf_area_nssa_unset(struct ospf *ospf, struct in_addr area_id)
{
struct ospf_area *area;
@ -1709,22 +1709,14 @@ int ospf_area_nssa_unset(struct ospf *ospf, struct in_addr area_id, int argc)
if (area == NULL)
return 0;
/* argc < 5 -> 'no area x nssa' */
if (argc < 5 && area->external_routing == OSPF_AREA_NSSA) {
ospf->anyNSSA--;
/* set NSSA area defaults */
area->no_summary = 0;
area->suppress_fa = 0;
area->NSSATranslatorRole = OSPF_NSSA_ROLE_CANDIDATE;
area->NSSATranslatorState = OSPF_NSSA_TRANSLATE_DISABLED;
area->NSSATranslatorStabilityInterval =
OSPF_NSSA_TRANS_STABLE_DEFAULT;
ospf_area_type_set(area, OSPF_AREA_DEFAULT);
} else {
ospf_area_nssa_translator_role_set(ospf, area_id,
OSPF_NSSA_ROLE_CANDIDATE);
}
ospf->anyNSSA--;
/* set NSSA area defaults */
area->no_summary = 0;
area->suppress_fa = 0;
area->NSSATranslatorRole = OSPF_NSSA_ROLE_CANDIDATE;
area->NSSATranslatorState = OSPF_NSSA_TRANSLATE_DISABLED;
area->NSSATranslatorStabilityInterval = OSPF_NSSA_TRANS_STABLE_DEFAULT;
ospf_area_type_set(area, OSPF_AREA_DEFAULT);
ospf_area_check_free(ospf, area_id);
return 1;

3
ospfd/ospfd.h
View File

@ -697,8 +697,7 @@ extern int ospf_area_no_summary_set(struct ospf *ospf, struct in_addr area_id);
extern int ospf_area_no_summary_unset(struct ospf *ospf,
struct in_addr area_id);
extern int ospf_area_nssa_set(struct ospf *ospf, struct in_addr area_id);
extern int ospf_area_nssa_unset(struct ospf *ospf, struct in_addr area_id,
int argc);
extern int ospf_area_nssa_unset(struct ospf *ospf, struct in_addr area_id);
extern int ospf_area_nssa_suppress_fa_set(struct ospf *ospf,
struct in_addr area_id);
extern int ospf_area_nssa_suppress_fa_unset(struct ospf *ospf,

4
tests/topotests/ospf_suppress_fa/test_ospf_suppress_fa.py
View File

@ -111,9 +111,7 @@ def ospf_unconfigure_suppress_fa(router_name, area):
tgen = get_topogen()
router = tgen.gears[router_name]
router.vtysh_cmd(
"conf t\nrouter ospf\nno area {} nssa suppress-fa\nexit\n".format(area)
)
router.vtysh_cmd("conf t\nrouter ospf\narea {} nssa\nexit\n".format(area))
def ospf_get_lsa_type5(router_name):