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authorPhilippe Guibert <philippe.guibert@6wind.com>2018-03-08 15:20:49 +0100
committerPhilippe Guibert <philippe.guibert@6wind.com>2018-04-16 14:40:43 +0200
commit1907e4b80b03dbaea9cb13eb4b52b33d1b9d30d3 (patch)
treec9a89b39b37f2cd3e35936078375fc16b93024dd
parent425bdd6bf10123c2027ed602536490aeb5fb72a0 (diff)
zebra: pbr rule structure is being added fwmark tag
PBR rule is being added a 32 bit value that can be used to record a rule in the kernel, by using a fwmark information. Signed-off-by: Philippe Guibert <philippe.guibert@6wind.com>
-rw-r--r--zebra/zebra_pbr.c7
-rw-r--r--zebra/zebra_pbr.h4
-rw-r--r--zebra/zserv.c15
3 files changed, 22 insertions, 4 deletions
diff --git a/zebra/zebra_pbr.c b/zebra/zebra_pbr.c
index 9cc7ce905c..dd6e16bb70 100644
--- a/zebra/zebra_pbr.c
+++ b/zebra/zebra_pbr.c
@@ -57,6 +57,10 @@ uint32_t zebra_pbr_rules_hash_key(void *arg)
else
key = jhash_1word(0, key);
+ if (rule->filter.fwmark)
+ key = jhash_1word(rule->filter.fwmark, key);
+ else
+ key = jhash_1word(0, key);
return jhash_3words(rule->filter.src_port, rule->filter.dst_port,
prefix_hash_key(&rule->filter.dst_ip),
jhash_1word(rule->unique, key));
@@ -87,6 +91,9 @@ int zebra_pbr_rules_hash_equal(const void *arg1, const void *arg2)
if (r1->filter.dst_port != r2->filter.dst_port)
return 0;
+ if (r1->filter.fwmark != r2->filter.fwmark)
+ return 0;
+
if (!prefix_same(&r1->filter.src_ip, &r2->filter.src_ip))
return 0;
diff --git a/zebra/zebra_pbr.h b/zebra/zebra_pbr.h
index c4af66b056..9f25c6f434 100644
--- a/zebra/zebra_pbr.h
+++ b/zebra/zebra_pbr.h
@@ -46,6 +46,7 @@ struct zebra_pbr_filter {
#define PBR_FILTER_DST_IP (1 << 1)
#define PBR_FILTER_SRC_PORT (1 << 2)
#define PBR_FILTER_DST_PORT (1 << 3)
+#define PBR_FILTER_FWMARK (1 << 4)
/* Source and Destination IP address with masks. */
struct prefix src_ip;
@@ -54,6 +55,9 @@ struct zebra_pbr_filter {
/* Source and Destination higher-layer (TCP/UDP) port numbers. */
uint16_t src_port;
uint16_t dst_port;
+
+ /* Filter with fwmark */
+ uint32_t fwmark;
};
#define IS_RULE_FILTERING_ON_SRC_IP(r) \
diff --git a/zebra/zserv.c b/zebra/zserv.c
index f38ea81adb..4d9898ae2d 100644
--- a/zebra/zserv.c
+++ b/zebra/zserv.c
@@ -2741,13 +2741,17 @@ static inline void zread_rule(ZAPI_HANDLER_ARGS)
STREAM_GET(&zpr.filter.dst_ip.u.prefix, s,
prefix_blen(&zpr.filter.dst_ip));
STREAM_GETW(s, zpr.filter.dst_port);
+ STREAM_GETL(s, zpr.filter.fwmark);
STREAM_GETL(s, zpr.action.table);
STREAM_GETL(s, ifindex);
- zpr.ifp = if_lookup_by_index(ifindex, VRF_UNKNOWN);
- if (!zpr.ifp) {
- zlog_debug("Failed to lookup ifindex: %u", ifindex);
- return;
+ if (ifindex) {
+ zpr.ifp = if_lookup_by_index(ifindex, VRF_UNKNOWN);
+ if (!zpr.ifp) {
+ zlog_debug("Failed to lookup ifindex: %u",
+ ifindex);
+ return;
+ }
}
if (!is_default_prefix(&zpr.filter.src_ip))
@@ -2762,6 +2766,9 @@ static inline void zread_rule(ZAPI_HANDLER_ARGS)
if (zpr.filter.dst_port)
zpr.filter.filter_bm |= PBR_FILTER_DST_PORT;
+ if (zpr.filter.fwmark)
+ zpr.filter.filter_bm |= PBR_FILTER_FWMARK;
+
if (hdr->command == ZEBRA_RULE_ADD)
zebra_pbr_add_rule(zvrf->zns, &zpr);
else