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network: drop list of bridge FDB entries

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[BridgeFDB] sections are managed by both LIST and Hashmap, and they
contains the completely same information. Let's drop the list.
This commit is contained in:
Yu Watanabe 2020-09-30 02:01:46 +09:00
parent df3a18f87f
commit 62ed9442bf
5 changed files with 25 additions and 45 deletions
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52
src/network/networkd-fdb.c
View File

@ -36,12 +36,8 @@ FdbEntry *fdb_entry_free(FdbEntry *fdb_entry) {
return NULL;
if (fdb_entry->network) {
LIST_REMOVE(static_fdb_entries, fdb_entry->network->static_fdb_entries, fdb_entry);
assert(fdb_entry->network->n_static_fdb_entries > 0);
fdb_entry->network->n_static_fdb_entries--;
if (fdb_entry->section)
hashmap_remove(fdb_entry->network->fdb_entries_by_section, fdb_entry->section);
assert(fdb_entry->section);
hashmap_remove(fdb_entry->network->fdb_entries_by_section, fdb_entry->section);
}
network_config_section_free(fdb_entry->section);
@ -63,23 +59,21 @@ static int fdb_entry_new_static(
assert(network);
assert(ret);
assert(!!filename == (section_line > 0));
assert(filename);
assert(section_line > 0);
r = network_config_section_new(filename, section_line, &n);
if (r < 0)
return r;
/* search entry in hashmap first. */
if (filename) {
r = network_config_section_new(filename, section_line, &n);
if (r < 0)
return r;
fdb_entry = hashmap_get(network->fdb_entries_by_section, n);
if (fdb_entry) {
*ret = TAKE_PTR(fdb_entry);
return 0;
}
fdb_entry = hashmap_get(network->fdb_entries_by_section, n);
if (fdb_entry) {
*ret = TAKE_PTR(fdb_entry);
return 0;
}
if (network->n_static_fdb_entries >= STATIC_FDB_ENTRIES_PER_NETWORK_MAX)
if (hashmap_size(network->fdb_entries_by_section) >= STATIC_FDB_ENTRIES_PER_NETWORK_MAX)
return -E2BIG;
/* allocate space for and FDB entry. */
@ -90,24 +84,18 @@ static int fdb_entry_new_static(
/* init FDB structure. */
*fdb_entry = (FdbEntry) {
.network = network,
.section = TAKE_PTR(n),
.vni = VXLAN_VID_MAX + 1,
.fdb_ntf_flags = NEIGHBOR_CACHE_ENTRY_FLAGS_SELF,
};
LIST_PREPEND(static_fdb_entries, network->static_fdb_entries, fdb_entry);
network->n_static_fdb_entries++;
r = hashmap_ensure_allocated(&network->fdb_entries_by_section, &network_config_hash_ops);
if (r < 0)
return r;
if (filename) {
fdb_entry->section = TAKE_PTR(n);
r = hashmap_ensure_allocated(&network->fdb_entries_by_section, &network_config_hash_ops);
if (r < 0)
return r;
r = hashmap_put(network->fdb_entries_by_section, fdb_entry->section, fdb_entry);
if (r < 0)
return r;
}
r = hashmap_put(network->fdb_entries_by_section, fdb_entry->section, fdb_entry);
if (r < 0)
return r;
/* return allocated FDB structure. */
*ret = TAKE_PTR(fdb_entry);

2
src/network/networkd-fdb.h
View File

@ -39,8 +39,6 @@ struct FdbEntry {
struct ether_addr mac_addr;
union in_addr_union destination_addr;
NeighborCacheEntryFlags fdb_ntf_flags;
LIST_FIELDS(FdbEntry, static_fdb_entries);
};
FdbEntry *fdb_entry_free(FdbEntry *fdb_entry);

2
src/network/networkd-link.c
View File

@ -1136,7 +1136,7 @@ static int link_set_bridge_fdb(Link *link) {
FdbEntry *fdb_entry;
int r;
LIST_FOREACH(static_fdb_entries, fdb_entry, link->network->static_fdb_entries) {
HASHMAP_FOREACH(fdb_entry, link->network->fdb_entries_by_section) {
r = fdb_entry_configure(link, fdb_entry);
if (r < 0)
return log_link_error_errno(link, r, "Failed to add MAC entry to static MAC table: %m");

12
src/network/networkd-network.c
View File

@ -156,7 +156,7 @@ int network_verify(Network *network) {
Address *address, *address_next;
Prefix *prefix, *prefix_next;
Route *route, *route_next;
FdbEntry *fdb, *fdb_next;
FdbEntry *fdb;
MdbEntry *mdb, *mdb_next;
TrafficControl *tc;
SRIOV *sr_iov;
@ -300,7 +300,7 @@ int network_verify(Network *network) {
network_verify_nexthops(network);
LIST_FOREACH_SAFE(static_fdb_entries, fdb, fdb_next, network->static_fdb_entries)
HASHMAP_FOREACH(fdb, network->fdb_entries_by_section)
if (section_is_invalid(fdb->section))
fdb_entry_free(fdb);
@ -637,7 +637,6 @@ failure:
static Network *network_free(Network *network) {
IPv6ProxyNDPAddress *ipv6_proxy_ndp_address;
RoutePrefix *route_prefix;
FdbEntry *fdb_entry;
MdbEntry *mdb_entry;
Address *address;
Prefix *prefix;
@ -704,9 +703,6 @@ static Network *network_free(Network *network) {
while ((address = network->static_addresses))
address_free(address);
while ((fdb_entry = network->static_fdb_entries))
fdb_entry_free(fdb_entry);
while ((mdb_entry = network->static_mdb_entries))
mdb_entry_free(mdb_entry);
@ -722,7 +718,7 @@ static Network *network_free(Network *network) {
hashmap_free(network->addresses_by_section);
hashmap_free(network->routes_by_section);
hashmap_free_with_destructor(network->nexthops_by_section, nexthop_free);
hashmap_free(network->fdb_entries_by_section);
hashmap_free_with_destructor(network->fdb_entries_by_section, fdb_entry_free);
hashmap_free(network->mdb_entries_by_section);
hashmap_free_with_destructor(network->neighbors_by_section, neighbor_free);
hashmap_free_with_destructor(network->address_labels_by_section, address_label_free);
@ -849,7 +845,7 @@ bool network_has_static_ipv6_configurations(Network *network) {
if (route->family == AF_INET6)
return true;
LIST_FOREACH(static_fdb_entries, fdb, network->static_fdb_entries)
HASHMAP_FOREACH(fdb, network->fdb_entries_by_section)
if (fdb->family == AF_INET6)
return true;

2
src/network/networkd-network.h
View File

@ -283,7 +283,6 @@ struct Network {
LIST_HEAD(Address, static_addresses);
LIST_HEAD(Route, static_routes);
LIST_HEAD(FdbEntry, static_fdb_entries);
LIST_HEAD(MdbEntry, static_mdb_entries);
LIST_HEAD(IPv6ProxyNDPAddress, ipv6_proxy_ndp_addresses);
LIST_HEAD(Prefix, static_prefixes);
@ -291,7 +290,6 @@ struct Network {
unsigned n_static_addresses;
unsigned n_static_routes;
unsigned n_static_fdb_entries;
unsigned n_static_mdb_entries;
unsigned n_ipv6_proxy_ndp_addresses;
unsigned n_static_prefixes;