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zebra: Add knowledge of request success/failure for pbr rules

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Add some nascent code to handle success/failure of the rule
installation.

Signed-off-by: Donald Sharp <sharpd@cumulusnetworks.com>
This commit is contained in:
Donald Sharp 2018-05-25 10:54:50 -04:00
parent 1e88567226
commit ebecd64913
4 changed files with 19 additions and 10 deletions
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8
zebra/rule_netlink.c
View File

@ -142,7 +142,7 @@ static int netlink_rule_update(int cmd, struct zebra_pbr_rule *rule)
* goes in the rule to denote relative ordering; it may or may not be the
* same as the rule's user-defined sequence number.
*/
void kernel_add_pbr_rule(struct zebra_pbr_rule *rule)
enum dp_req_result kernel_add_pbr_rule(struct zebra_pbr_rule *rule)
{
int ret = 0;
@ -150,12 +150,14 @@ void kernel_add_pbr_rule(struct zebra_pbr_rule *rule)
kernel_pbr_rule_add_del_status(rule,
(!ret) ? DP_INSTALL_SUCCESS
: DP_INSTALL_FAILURE);
return DP_REQUEST_SUCCESS;
}
/*
* Uninstall specified rule for a specific interface.
*/
void kernel_del_pbr_rule(struct zebra_pbr_rule *rule)
enum dp_req_result kernel_del_pbr_rule(struct zebra_pbr_rule *rule)
{
int ret = 0;
@ -163,6 +165,8 @@ void kernel_del_pbr_rule(struct zebra_pbr_rule *rule)
kernel_pbr_rule_add_del_status(rule,
(!ret) ? DP_DELETE_SUCCESS
: DP_DELETE_FAILURE);
return DP_REQUEST_SUCCESS;
}
/*

9
zebra/rule_socket.c
View File

@ -41,11 +41,16 @@
#include "zebra/rule_netlink.h"
#include "zebra/zebra_pbr.h"
void kernel_add_pbr_rule(struct zebra_pbr_rule *rule)
enum dp_req_result kernel_add_pbr_rule(struct zebra_pbr_rule *rule)
{
zlog_err("%s not Implemented for this platform", __PRETTY_FUNCTION__);
return DP_REQUEST_FAILURE;
}
void kernel_del_pbr_rule(struct zebra_pbr_rule *rule)
enum dp_req_result kernel_del_pbr_rule(struct zebra_pbr_rule *rule)
{
zlog_err("%s not Implemented for this platform", __PRETTY_FUNCTION__);
return DP_REQUEST_FAILURE;
}
#endif

8
zebra/zebra_pbr.c
View File

@ -78,7 +78,7 @@ void zebra_pbr_rules_free(void *arg)
rule = (struct zebra_pbr_rule *)arg;
kernel_del_pbr_rule(rule);
(void)kernel_del_pbr_rule(rule);
XFREE(MTYPE_TMP, rule);
}
@ -368,7 +368,7 @@ void zebra_pbr_add_rule(struct zebra_ns *zns, struct zebra_pbr_rule *rule)
pbr_rule_lookup_unique(zns, rule->rule.unique, rule->ifp);
(void)hash_get(zns->rules_hash, rule, pbr_rule_alloc_intern);
kernel_add_pbr_rule(rule);
(void)kernel_add_pbr_rule(rule);
/*
* Rule Replace semantics, if we have an old, install the
* new rule, look above, and then delete the old
@ -382,7 +382,7 @@ void zebra_pbr_del_rule(struct zebra_ns *zns, struct zebra_pbr_rule *rule)
struct zebra_pbr_rule *lookup;
lookup = hash_lookup(zns->rules_hash, rule);
kernel_del_pbr_rule(rule);
(void)kernel_del_pbr_rule(rule);
if (lookup) {
hash_release(zns->rules_hash, lookup);
@ -399,7 +399,7 @@ static void zebra_pbr_cleanup_rules(struct hash_backet *b, void *data)
int *sock = data;
if (rule->sock == *sock) {
kernel_del_pbr_rule(rule);
(void)kernel_del_pbr_rule(rule);
hash_release(zns->rules_hash, rule);
XFREE(MTYPE_TMP, rule);
}

4
zebra/zebra_pbr.h
View File

@ -162,12 +162,12 @@ void zebra_pbr_del_iptable(struct zebra_ns *zns,
* forwarding plane may not coincide, hence the API requires a separate
* rule priority - maps to preference/FRA_PRIORITY on Linux.
*/
extern void kernel_add_pbr_rule(struct zebra_pbr_rule *rule);
extern enum dp_req_result kernel_add_pbr_rule(struct zebra_pbr_rule *rule);
/*
* Uninstall specified rule for a specific interface.
*/
extern void kernel_del_pbr_rule(struct zebra_pbr_rule *rule);
extern enum dp_req_result kernel_del_pbr_rule(struct zebra_pbr_rule *rule);
/*
* Get to know existing PBR rules in the kernel - typically called at startup.