Zbigniew Jędrzejewski-Szmek
117843fe95
The macro used to return NULL if input was NULL or had the wrong type. Now it asserts that input is nonnull and it has the expected type. There are a few places where a missing or mismatched type was OK, but in a majority of places, we would do both of the asserts. In various places we'd only do one, but that was by ommission/mistake. So moving the asserts into the macro allows us to save some lines.
133 lines
4.3 KiB
C
133 lines
4.3 KiB
C
/* SPDX-License-Identifier: LGPL-2.1-or-later */
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#include <net/if.h>
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#include <netinet/in.h>
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#include <linux/if_arp.h>
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#include "conf-parser.h"
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#include "macvlan.h"
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#include "macvlan-util.h"
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#include "networkd-network.h"
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#include "parse-util.h"
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DEFINE_CONFIG_PARSE_ENUM(config_parse_macvlan_mode, macvlan_mode, MacVlanMode, "Failed to parse macvlan mode");
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static int netdev_macvlan_fill_message_create(NetDev *netdev, Link *link, sd_netlink_message *req) {
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assert(netdev);
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assert(netdev->ifname);
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assert(link);
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assert(link->network);
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MacVlan *m = netdev->kind == NETDEV_KIND_MACVLAN ? MACVLAN(netdev) : MACVTAP(netdev);
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int r;
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if (m->mode == NETDEV_MACVLAN_MODE_SOURCE && !set_isempty(m->match_source_mac)) {
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const struct ether_addr *mac_addr;
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r = sd_netlink_message_append_u32(req, IFLA_MACVLAN_MACADDR_MODE, MACVLAN_MACADDR_SET);
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if (r < 0)
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return r;
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r = sd_netlink_message_open_container(req, IFLA_MACVLAN_MACADDR_DATA);
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if (r < 0)
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return r;
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SET_FOREACH(mac_addr, m->match_source_mac) {
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r = sd_netlink_message_append_ether_addr(req, IFLA_MACVLAN_MACADDR, mac_addr);
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if (r < 0)
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return r;
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}
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r = sd_netlink_message_close_container(req);
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if (r < 0)
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return r;
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}
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if (m->mode != _NETDEV_MACVLAN_MODE_INVALID) {
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r = sd_netlink_message_append_u32(req, IFLA_MACVLAN_MODE, m->mode);
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if (r < 0)
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return r;
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}
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/* set the nopromisc flag if Promiscuous= of the link is explicitly set to false */
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if (m->mode == NETDEV_MACVLAN_MODE_PASSTHRU && link->network->promiscuous == 0) {
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r = sd_netlink_message_append_u16(req, IFLA_MACVLAN_FLAGS, MACVLAN_FLAG_NOPROMISC);
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if (r < 0)
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return r;
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}
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if (m->bc_queue_length != UINT32_MAX) {
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r = sd_netlink_message_append_u32(req, IFLA_MACVLAN_BC_QUEUE_LEN, m->bc_queue_length);
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if (r < 0)
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return r;
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}
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return 0;
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}
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int config_parse_macvlan_broadcast_queue_size(
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const char *unit,
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const char *filename,
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unsigned line,
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const char *section,
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unsigned section_line,
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const char *lvalue,
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int ltype,
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const char *rvalue,
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void *data,
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void *userdata) {
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assert(filename);
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assert(section);
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assert(lvalue);
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assert(rvalue);
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assert(data);
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MacVlan *m = ASSERT_PTR(userdata);
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if (isempty(rvalue)) {
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m->bc_queue_length = UINT32_MAX;
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return 0;
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}
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return config_parse_uint32_bounded(
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unit, filename, line, section, section_line, lvalue, rvalue,
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0, UINT32_MAX - 1, true,
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&m->bc_queue_length);
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}
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static void macvlan_done(NetDev *netdev) {
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MacVlan *m = ASSERT_PTR(netdev)->kind == NETDEV_KIND_MACVLAN ? MACVLAN(netdev) : MACVTAP(netdev);
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set_free(m->match_source_mac);
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}
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static void macvlan_init(NetDev *netdev) {
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MacVlan *m = ASSERT_PTR(netdev)->kind == NETDEV_KIND_MACVLAN ? MACVLAN(netdev) : MACVTAP(netdev);
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m->mode = _NETDEV_MACVLAN_MODE_INVALID;
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m->bc_queue_length = UINT32_MAX;
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}
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const NetDevVTable macvtap_vtable = {
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.object_size = sizeof(MacVlan),
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.init = macvlan_init,
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.done = macvlan_done,
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.sections = NETDEV_COMMON_SECTIONS "MACVTAP\0",
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.fill_message_create = netdev_macvlan_fill_message_create,
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.create_type = NETDEV_CREATE_STACKED,
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.iftype = ARPHRD_ETHER,
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.generate_mac = true,
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};
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const NetDevVTable macvlan_vtable = {
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.object_size = sizeof(MacVlan),
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.init = macvlan_init,
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.done = macvlan_done,
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.sections = NETDEV_COMMON_SECTIONS "MACVLAN\0",
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.fill_message_create = netdev_macvlan_fill_message_create,
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.create_type = NETDEV_CREATE_STACKED,
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.iftype = ARPHRD_ETHER,
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.generate_mac = true,
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};
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