diff mbox series

[ovs-dev,v16,2/3] OVN Remote Port Mirroring: northd changes to sync NB and SB

Message ID 20221125200219.1312140-2-abhiramrn@gmail.com
State Superseded
Headers show
Series [ovs-dev,v16,1/3] OVN Remote Port Mirroring: Add new Schemas in NB and SB | expand

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Commit Message

Abhiram RN Nov. 25, 2022, 8:02 p.m. UTC
Changes which syncs the NB port mirrors with SB port mirrors.
Also test added to check the NB and SB sync

Co-authored-by: Veda Barrenkala <vedabarrenkala@gmail.com>
Signed-off-by: Veda Barrenkala <vedabarrenkala@gmail.com>
Signed-off-by: Abhiram R N <abhiramrn@gmail.com>
---
 northd/en-northd.c       |   4 +
 northd/inc-proc-northd.c |   4 +
 northd/northd.c          | 172 +++++++++++++++++++++++++++++++++++++++
 northd/northd.h          |   2 +
 tests/ovn-northd.at      | 102 +++++++++++++++++++++++
 5 files changed, 284 insertions(+)
diff mbox series

Patch

diff --git a/northd/en-northd.c b/northd/en-northd.c
index 93891b0b7..66ecc6573 100644
--- a/northd/en-northd.c
+++ b/northd/en-northd.c
@@ -78,6 +78,8 @@  void en_northd_run(struct engine_node *node, void *data)
         EN_OVSDB_GET(engine_get_input("NB_acl", node));
     input_data.nbrec_static_mac_binding_table =
         EN_OVSDB_GET(engine_get_input("NB_static_mac_binding", node));
+    input_data.nbrec_mirror_table =
+        EN_OVSDB_GET(engine_get_input("NB_mirror", node));
 
     input_data.sbrec_sb_global_table =
         EN_OVSDB_GET(engine_get_input("SB_sb_global", node));
@@ -109,6 +111,8 @@  void en_northd_run(struct engine_node *node, void *data)
         EN_OVSDB_GET(engine_get_input("SB_chassis_private", node));
     input_data.sbrec_static_mac_binding_table =
         EN_OVSDB_GET(engine_get_input("SB_static_mac_binding", node));
+    input_data.sbrec_mirror_table =
+        EN_OVSDB_GET(engine_get_input("SB_mirror", node));
 
     northd_run(&input_data, data,
                eng_ctx->ovnnb_idl_txn,
diff --git a/northd/inc-proc-northd.c b/northd/inc-proc-northd.c
index 73f230b2c..7b7b250f3 100644
--- a/northd/inc-proc-northd.c
+++ b/northd/inc-proc-northd.c
@@ -52,6 +52,7 @@  VLOG_DEFINE_THIS_MODULE(inc_proc_northd);
     NB_NODE(acl, "acl") \
     NB_NODE(logical_router, "logical_router") \
     NB_NODE(qos, "qos") \
+    NB_NODE(mirror, "mirror") \
     NB_NODE(meter, "meter") \
     NB_NODE(meter_band, "meter_band") \
     NB_NODE(logical_router_port, "logical_router_port") \
@@ -94,6 +95,7 @@  VLOG_DEFINE_THIS_MODULE(inc_proc_northd);
     SB_NODE(logical_flow, "logical_flow") \
     SB_NODE(logical_dp_group, "logical_DP_group") \
     SB_NODE(multicast_group, "multicast_group") \
+    SB_NODE(mirror, "mirror") \
     SB_NODE(meter, "meter") \
     SB_NODE(meter_band, "meter_band") \
     SB_NODE(datapath_binding, "datapath_binding") \
@@ -176,6 +178,7 @@  void inc_proc_northd_init(struct ovsdb_idl_loop *nb,
     engine_add_input(&en_northd, &en_nb_acl, NULL);
     engine_add_input(&en_northd, &en_nb_logical_router, NULL);
     engine_add_input(&en_northd, &en_nb_qos, NULL);
+    engine_add_input(&en_northd, &en_nb_mirror, NULL);
     engine_add_input(&en_northd, &en_nb_meter, NULL);
     engine_add_input(&en_northd, &en_nb_meter_band, NULL);
     engine_add_input(&en_northd, &en_nb_logical_router_port, NULL);
@@ -197,6 +200,7 @@  void inc_proc_northd_init(struct ovsdb_idl_loop *nb,
     engine_add_input(&en_northd, &en_sb_encap, NULL);
     engine_add_input(&en_northd, &en_sb_port_group, NULL);
     engine_add_input(&en_northd, &en_sb_logical_dp_group, NULL);
+    engine_add_input(&en_northd, &en_sb_mirror, NULL);
     engine_add_input(&en_northd, &en_sb_meter, NULL);
     engine_add_input(&en_northd, &en_sb_meter_band, NULL);
     engine_add_input(&en_northd, &en_sb_datapath_binding, NULL);
diff --git a/northd/northd.c b/northd/northd.c
index 040f46e1a..16739983c 100644
--- a/northd/northd.c
+++ b/northd/northd.c
@@ -3239,6 +3239,89 @@  ovn_port_update_sbrec_chassis(
     free(requested_chassis_sb);
 }
 
+static void
+do_sb_mirror_addition(struct northd_input *input_data,
+                      const struct ovn_port *op)
+{
+    for (size_t i = 0; i < op->nbsp->n_mirror_rules; i++) {
+        const struct sbrec_mirror *sb_mirror;
+        SBREC_MIRROR_TABLE_FOR_EACH (sb_mirror,
+                                     input_data->sbrec_mirror_table) {
+            if (!strcmp(sb_mirror->name,
+                        op->nbsp->mirror_rules[i]->name)) {
+                /* Add the value to SB */
+                sbrec_port_binding_update_mirror_rules_addvalue(op->sb,
+                                                                sb_mirror);
+            }
+        }
+    }
+}
+
+static void
+sbrec_port_binding_update_mirror_rules(struct northd_input *input_data,
+                                       const struct ovn_port *op)
+{
+    size_t i = 0;
+    if (op->sb->n_mirror_rules > op->nbsp->n_mirror_rules) {
+        /* Needs deletion in SB */
+        struct shash nb_mirror_rules = SHASH_INITIALIZER(&nb_mirror_rules);
+        for (i = 0; i < op->nbsp->n_mirror_rules; i++) {
+            shash_add(&nb_mirror_rules,
+                                 op->nbsp->mirror_rules[i]->name,
+                                 op->nbsp->mirror_rules[i]);
+        }
+
+        for (i = 0; i < op->sb->n_mirror_rules; i++) {
+            if (!shash_find(&nb_mirror_rules,
+                           op->sb->mirror_rules[i]->name)) {
+                    sbrec_port_binding_update_mirror_rules_delvalue(op->sb,
+                                                 op->sb->mirror_rules[i]);
+            }
+        }
+
+        struct shash_node *node, *next;
+        SHASH_FOR_EACH_SAFE (node, next, &nb_mirror_rules) {
+            shash_delete(&nb_mirror_rules, node);
+        }
+        shash_destroy(&nb_mirror_rules);
+
+    } else if (op->sb->n_mirror_rules < op->nbsp->n_mirror_rules) {
+        /* Needs addition in SB */
+        do_sb_mirror_addition(input_data, op);
+    } else if (op->sb->n_mirror_rules == op->nbsp->n_mirror_rules) {
+        /*
+         * Check if its the same mirrors on both SB and NB DBs
+         * If not update accordingly.
+         */
+        bool needs_sb_addition = false;
+        struct shash nb_mirror_rules = SHASH_INITIALIZER(&nb_mirror_rules);
+        for (i = 0; i < op->nbsp->n_mirror_rules; i++) {
+            shash_add(&nb_mirror_rules,
+                                 op->nbsp->mirror_rules[i]->name,
+                                 op->nbsp->mirror_rules[i]);
+        }
+
+        for (i = 0; i < op->sb->n_mirror_rules; i++) {
+            if (!shash_find(&nb_mirror_rules,
+                           op->sb->mirror_rules[i]->name)) {
+                    sbrec_port_binding_update_mirror_rules_delvalue(op->sb,
+                                                 op->sb->mirror_rules[i]);
+                    needs_sb_addition = true;
+            }
+        }
+
+        struct shash_node *node, *next;
+        SHASH_FOR_EACH_SAFE (node, next, &nb_mirror_rules) {
+            shash_delete(&nb_mirror_rules, node);
+        }
+        shash_destroy(&nb_mirror_rules);
+
+        if (needs_sb_addition) {
+            do_sb_mirror_addition(input_data, op);
+        }
+    }
+}
+
 static void
 ovn_port_update_sbrec(struct northd_input *input_data,
                       struct ovsdb_idl_txn *ovnsb_txn,
@@ -3598,6 +3681,15 @@  ovn_port_update_sbrec(struct northd_input *input_data,
         }
         sbrec_port_binding_set_external_ids(op->sb, &ids);
         smap_destroy(&ids);
+
+        if (!op->nbsp->n_mirror_rules) {
+            /* Nothing is set. Clear mirror_rules from pb. */
+            sbrec_port_binding_set_mirror_rules(op->sb, NULL, 0);
+        } else {
+            /* Check if SB DB update needed */
+            sbrec_port_binding_update_mirror_rules(input_data, op);
+        }
+
     }
     if (op->tunnel_key != op->sb->tunnel_key) {
         sbrec_port_binding_set_tunnel_key(op->sb, op->tunnel_key);
@@ -15161,6 +15253,85 @@  sync_meters(struct northd_input *input_data,
     shash_destroy(&sb_meters);
 }
 
+static bool
+mirror_needs_update(const struct nbrec_mirror *nb_mirror,
+                  const struct sbrec_mirror *sb_mirror)
+{
+
+    if (nb_mirror->index != sb_mirror->index) {
+        return true;
+    } else if (strcmp(nb_mirror->sink, sb_mirror->sink)) {
+        return true;
+    } else if (strcmp(nb_mirror->type, sb_mirror->type)) {
+        return true;
+    } else if (strcmp(nb_mirror->filter, sb_mirror->filter)) {
+        return true;
+    }
+
+    return false;
+}
+
+static void
+sync_mirrors_iterate_nb_mirror(struct ovsdb_idl_txn *ovnsb_txn,
+                             const char *mirror_name,
+                             const struct nbrec_mirror *nb_mirror,
+                             struct shash *sb_mirrors,
+                             struct sset *used_sb_mirrors)
+{
+    const struct sbrec_mirror *sb_mirror;
+    bool new_sb_mirror = false;
+
+    sb_mirror = shash_find_data(sb_mirrors, mirror_name);
+    if (!sb_mirror) {
+        sb_mirror = sbrec_mirror_insert(ovnsb_txn);
+        sbrec_mirror_set_name(sb_mirror, mirror_name);
+        shash_add(sb_mirrors, sb_mirror->name, sb_mirror);
+        new_sb_mirror = true;
+    }
+    sset_add(used_sb_mirrors, mirror_name);
+
+    if ((new_sb_mirror) || mirror_needs_update(nb_mirror, sb_mirror)) {
+        sbrec_mirror_set_filter(sb_mirror,nb_mirror->filter);
+        sbrec_mirror_set_index(sb_mirror, nb_mirror->index);
+        sbrec_mirror_set_sink(sb_mirror, nb_mirror->sink);
+        sbrec_mirror_set_type(sb_mirror, nb_mirror->type);
+    }
+}
+
+static void
+sync_mirrors(struct northd_input *input_data,
+            struct ovsdb_idl_txn *ovnsb_txn)
+{
+    struct shash sb_mirrors = SHASH_INITIALIZER(&sb_mirrors);
+    struct sset used_sb_mirrors = SSET_INITIALIZER(&used_sb_mirrors);
+
+    const struct sbrec_mirror *sb_mirror;
+    SBREC_MIRROR_TABLE_FOR_EACH (sb_mirror, input_data->sbrec_mirror_table) {
+        shash_add(&sb_mirrors, sb_mirror->name, sb_mirror);
+    }
+
+    const struct nbrec_mirror *nb_mirror;
+    NBREC_MIRROR_TABLE_FOR_EACH (nb_mirror, input_data->nbrec_mirror_table) {
+        sync_mirrors_iterate_nb_mirror(ovnsb_txn, nb_mirror->name, nb_mirror,
+                                     &sb_mirrors, &used_sb_mirrors);
+    }
+
+    const char *used_mirror;
+    const char *used_mirror_next;
+    SSET_FOR_EACH_SAFE (used_mirror, used_mirror_next, &used_sb_mirrors) {
+        shash_find_and_delete(&sb_mirrors, used_mirror);
+        sset_delete(&used_sb_mirrors, SSET_NODE_FROM_NAME(used_mirror));
+    }
+    sset_destroy(&used_sb_mirrors);
+
+    struct shash_node *node, *next;
+    SHASH_FOR_EACH_SAFE (node, next, &sb_mirrors) {
+        sbrec_mirror_delete(node->data);
+        shash_delete(&sb_mirrors, node);
+    }
+    shash_destroy(&sb_mirrors);
+}
+
 /*
  * struct 'dns_info' is used to sync the DNS records between OVN Northbound db
  * and Southbound db.
@@ -15794,6 +15965,7 @@  ovnnb_db_run(struct northd_input *input_data,
     sync_lbs(input_data, ovnsb_txn, &data->datapaths, &data->lbs);
     sync_port_groups(input_data, ovnsb_txn, &data->port_groups);
     sync_meters(input_data, ovnsb_txn, &data->meter_groups);
+    sync_mirrors(input_data, ovnsb_txn);
     sync_dns_entries(input_data, ovnsb_txn, &data->datapaths);
     cleanup_stale_fdb_entries(input_data, &data->datapaths);
     stopwatch_stop(CLEAR_LFLOWS_CTX_STOPWATCH_NAME, time_msec());
diff --git a/northd/northd.h b/northd/northd.h
index ea9bd5797..1670177ed 100644
--- a/northd/northd.h
+++ b/northd/northd.h
@@ -35,6 +35,7 @@  struct northd_input {
     const struct nbrec_acl_table *nbrec_acl_table;
     const struct nbrec_static_mac_binding_table
         *nbrec_static_mac_binding_table;
+    const struct nbrec_mirror_table *nbrec_mirror_table;
 
     /* Southbound table references */
     const struct sbrec_sb_global_table *sbrec_sb_global_table;
@@ -53,6 +54,7 @@  struct northd_input {
     const struct sbrec_chassis_private_table *sbrec_chassis_private_table;
     const struct sbrec_static_mac_binding_table
         *sbrec_static_mac_binding_table;
+    const struct sbrec_mirror_table *sbrec_mirror_table;
 
     /* Indexes */
     struct ovsdb_idl_index *sbrec_chassis_by_name;
diff --git a/tests/ovn-northd.at b/tests/ovn-northd.at
index 02c00c062..466d16916 100644
--- a/tests/ovn-northd.at
+++ b/tests/ovn-northd.at
@@ -2319,6 +2319,108 @@  check_meter_by_name NOT meter_me__${acl1} meter_me__${acl2}
 AT_CLEANUP
 ])
 
+OVN_FOR_EACH_NORTHD_NO_HV([
+AT_SETUP([Check NB-SB mirrors sync])
+AT_KEYWORDS([mirrors])
+ovn_start
+
+check ovn-nbctl --wait=sb mirror-add mirror1 erspan 0 both 10.10.10.2
+
+AT_CHECK([ovn-sbctl get Mirror . Sink], [0], [dnl
+"10.10.10.2"
+])
+
+AT_CHECK([ovn-sbctl get Mirror . type], [0], [dnl
+erspan
+])
+
+AT_CHECK([ovn-sbctl get Mirror . index], [0], [dnl
+0
+])
+
+AT_CHECK([ovn-sbctl get Mirror . filter], [0], [dnl
+both
+])
+
+check ovn-nbctl --wait=sb \
+    -- set mirror . sink=192.168.1.13
+
+AT_CHECK([ovn-sbctl get Mirror . Sink], [0], [dnl
+"192.168.1.13"
+])
+
+AT_CHECK([ovn-sbctl get Mirror . type], [0], [dnl
+erspan
+])
+
+AT_CHECK([ovn-sbctl get Mirror . index], [0], [dnl
+0
+])
+
+AT_CHECK([ovn-sbctl get Mirror . filter], [0], [dnl
+both
+])
+
+check ovn-nbctl --wait=sb \
+    -- set mirror . type=gre
+
+AT_CHECK([ovn-sbctl get Mirror . type], [0], [dnl
+gre
+])
+
+AT_CHECK([ovn-sbctl get Mirror . Sink], [0], [dnl
+"192.168.1.13"
+])
+
+AT_CHECK([ovn-sbctl get Mirror . index], [0], [dnl
+0
+])
+
+AT_CHECK([ovn-sbctl get Mirror . filter], [0], [dnl
+both
+])
+
+check ovn-nbctl --wait=sb \
+    -- set mirror . index=12
+
+AT_CHECK([ovn-sbctl get Mirror . index], [0], [dnl
+12
+])
+
+AT_CHECK([ovn-sbctl get Mirror . type], [0], [dnl
+gre
+])
+
+AT_CHECK([ovn-sbctl get Mirror . Sink], [0], [dnl
+"192.168.1.13"
+])
+
+AT_CHECK([ovn-sbctl get Mirror . filter], [0], [dnl
+both
+])
+
+check ovn-nbctl --wait=sb \
+    -- set mirror . filter=to-lport
+
+AT_CHECK([ovn-sbctl get Mirror . filter], [0], [dnl
+to-lport
+])
+
+AT_CHECK([ovn-sbctl get Mirror . index], [0], [dnl
+12
+])
+
+AT_CHECK([ovn-sbctl get Mirror . type], [0], [dnl
+gre
+])
+
+AT_CHECK([ovn-sbctl get Mirror . Sink], [0], [dnl
+"192.168.1.13"
+])
+
+AT_CLEANUP
+])
+
 OVN_FOR_EACH_NORTHD_NO_HV([
 AT_SETUP([ACL skip hints for stateless config])
 AT_KEYWORDS([acl])