| /* SPDX-License-Identifier: LGPL-2.1-or-later */ |
| |
| #include <net/if.h> |
| |
| #include "conf-parser.h" |
| #include "macvlan.h" |
| #include "macvlan-util.h" |
| #include "networkd-network.h" |
| #include "parse-util.h" |
| |
| DEFINE_CONFIG_PARSE_ENUM(config_parse_macvlan_mode, macvlan_mode, MacVlanMode, "Failed to parse macvlan mode"); |
| |
| static int netdev_macvlan_fill_message_create(NetDev *netdev, Link *link, sd_netlink_message *req) { |
| MacVlan *m; |
| int r; |
| |
| assert(netdev); |
| assert(link); |
| assert(netdev->ifname); |
| assert(link->network); |
| |
| if (netdev->kind == NETDEV_KIND_MACVLAN) |
| m = MACVLAN(netdev); |
| else |
| m = MACVTAP(netdev); |
| |
| assert(m); |
| |
| if (m->mode == NETDEV_MACVLAN_MODE_SOURCE && !set_isempty(m->match_source_mac)) { |
| const struct ether_addr *mac_addr; |
| |
| r = sd_netlink_message_append_u32(req, IFLA_MACVLAN_MACADDR_MODE, MACVLAN_MACADDR_SET); |
| if (r < 0) |
| return log_netdev_error_errno(netdev, r, "Could not append IFLA_MACVLAN_MACADDR_MODE attribute: %m"); |
| |
| r = sd_netlink_message_open_container(req, IFLA_MACVLAN_MACADDR_DATA); |
| if (r < 0) |
| return log_netdev_error_errno(netdev, r, "Could not open IFLA_MACVLAN_MACADDR_DATA container: %m"); |
| |
| SET_FOREACH(mac_addr, m->match_source_mac) { |
| r = sd_netlink_message_append_ether_addr(req, IFLA_MACVLAN_MACADDR, mac_addr); |
| if (r < 0) |
| return log_netdev_error_errno(netdev, r, "Could not append IFLA_MACVLAN_MACADDR attribute: %m"); |
| } |
| |
| r = sd_netlink_message_close_container(req); |
| if (r < 0) |
| return log_netdev_error_errno(netdev, r, "Could not close IFLA_MACVLAN_MACADDR_DATA container: %m"); |
| } |
| |
| if (m->mode != _NETDEV_MACVLAN_MODE_INVALID) { |
| r = sd_netlink_message_append_u32(req, IFLA_MACVLAN_MODE, m->mode); |
| if (r < 0) |
| return log_netdev_error_errno(netdev, r, "Could not append IFLA_MACVLAN_MODE attribute: %m"); |
| } |
| |
| /* set the nopromisc flag if Promiscuous= of the link is explicitly set to false */ |
| if (m->mode == NETDEV_MACVLAN_MODE_PASSTHRU && link->network->promiscuous == 0) { |
| r = sd_netlink_message_append_u16(req, IFLA_MACVLAN_FLAGS, MACVLAN_FLAG_NOPROMISC); |
| if (r < 0) |
| return log_netdev_error_errno(netdev, r, "Could not append IFLA_MACVLAN_FLAGS attribute: %m"); |
| } |
| |
| if (m->bc_queue_length != UINT32_MAX) { |
| r = sd_netlink_message_append_u32(req, IFLA_MACVLAN_BC_QUEUE_LEN, m->bc_queue_length); |
| if (r < 0) |
| return log_netdev_error_errno(netdev, r, "Could not append IFLA_MACVLAN_BC_QUEUE_LEN attribute: %m"); |
| } |
| |
| return 0; |
| } |
| |
| int config_parse_macvlan_broadcast_queue_size( |
| const char *unit, |
| const char *filename, |
| unsigned line, |
| const char *section, |
| unsigned section_line, |
| const char *lvalue, |
| int ltype, |
| const char *rvalue, |
| void *data, |
| void *userdata) { |
| |
| MacVlan *m = userdata; |
| uint32_t v; |
| int r; |
| |
| assert(filename); |
| assert(section); |
| assert(lvalue); |
| assert(rvalue); |
| assert(data); |
| assert(userdata); |
| |
| if (isempty(rvalue)) { |
| m->bc_queue_length = UINT32_MAX; |
| return 0; |
| } |
| |
| r = safe_atou32(rvalue, &v); |
| if (r < 0) { |
| log_syntax(unit, LOG_WARNING, filename, line, r, |
| "Failed to parse BroadcastMulticastQueueLength=%s, ignoring assignment: %m", rvalue); |
| return 0; |
| } |
| |
| if (v == UINT32_MAX) { |
| log_syntax(unit, LOG_WARNING, filename, line, 0, |
| "Invalid BroadcastMulticastQueueLength=%s, ignoring assignment: %m", rvalue); |
| return 0; |
| } |
| |
| m->bc_queue_length = v; |
| return 0; |
| } |
| |
| static void macvlan_done(NetDev *n) { |
| MacVlan *m; |
| |
| assert(n); |
| |
| if (n->kind == NETDEV_KIND_MACVLAN) |
| m = MACVLAN(n); |
| else |
| m = MACVTAP(n); |
| |
| assert(m); |
| |
| set_free_free(m->match_source_mac); |
| } |
| |
| static void macvlan_init(NetDev *n) { |
| MacVlan *m; |
| |
| assert(n); |
| |
| if (n->kind == NETDEV_KIND_MACVLAN) |
| m = MACVLAN(n); |
| else |
| m = MACVTAP(n); |
| |
| assert(m); |
| |
| m->mode = _NETDEV_MACVLAN_MODE_INVALID; |
| m->bc_queue_length = UINT32_MAX; |
| } |
| |
| const NetDevVTable macvtap_vtable = { |
| .object_size = sizeof(MacVlan), |
| .init = macvlan_init, |
| .done = macvlan_done, |
| .sections = NETDEV_COMMON_SECTIONS "MACVTAP\0", |
| .fill_message_create = netdev_macvlan_fill_message_create, |
| .create_type = NETDEV_CREATE_STACKED, |
| .generate_mac = true, |
| }; |
| |
| const NetDevVTable macvlan_vtable = { |
| .object_size = sizeof(MacVlan), |
| .init = macvlan_init, |
| .done = macvlan_done, |
| .sections = NETDEV_COMMON_SECTIONS "MACVLAN\0", |
| .fill_message_create = netdev_macvlan_fill_message_create, |
| .create_type = NETDEV_CREATE_STACKED, |
| .generate_mac = true, |
| }; |