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/* SPDX-License-Identifier: LGPL-2.1-or-later */
#include <linux/if_arp.h>
#include <linux/if_link.h>
#include "ipoib.h"
#include "networkd-network.h"
#include "parse-util.h"
#include "string-table.h"
assert_cc((int) IP_OVER_INFINIBAND_MODE_DATAGRAM == (int) IPOIB_MODE_DATAGRAM);
assert_cc((int) IP_OVER_INFINIBAND_MODE_CONNECTED == (int) IPOIB_MODE_CONNECTED);
static void netdev_ipoib_init(NetDev *netdev) {
IPoIB *ipoib;
assert(netdev);
ipoib = IPOIB(netdev);
assert(ipoib);
ipoib->mode = _IP_OVER_INFINIBAND_MODE_INVALID;
ipoib->umcast = -1;
}
static int netdev_ipoib_fill_message_create(NetDev *netdev, Link *link, sd_netlink_message *m) {
IPoIB *ipoib;
int r;
assert(netdev);
assert(link);
assert(m);
ipoib = IPOIB(netdev);
assert(ipoib);
if (ipoib->pkey > 0) {
r = sd_netlink_message_append_u16(m, IFLA_IPOIB_PKEY, ipoib->pkey);
if (r < 0)
return log_netdev_error_errno(netdev, r, "Could not append IFLA_IPOIB_PKEY attribute: %m");
}
if (ipoib->mode >= 0) {
r = sd_netlink_message_append_u16(m, IFLA_IPOIB_MODE, ipoib->mode);
if (r < 0)
return log_netdev_error_errno(netdev, r, "Could not append IFLA_IPOIB_MODE attribute: %m");
}
if (ipoib->umcast >= 0) {
r = sd_netlink_message_append_u16(m, IFLA_IPOIB_UMCAST, ipoib->umcast);
if (r < 0)
return log_netdev_error_errno(netdev, r, "Could not append IFLA_IPOIB_UMCAST attribute: %m");
}
return 0;
}
int ipoib_set_netlink_message(Link *link, sd_netlink_message *m) {
int r;
assert(link);
assert(link->network);
assert(m);
r = sd_netlink_message_set_flags(m, NLM_F_REQUEST | NLM_F_ACK);
if (r < 0)
return log_link_debug_errno(link, r, "Could not set netlink flags: %m");
r = sd_netlink_message_open_container(m, IFLA_LINKINFO);
if (r < 0)
return log_link_debug_errno(link, r, "Failed to open IFLA_LINKINFO container: %m");
r = sd_netlink_message_open_container_union(m, IFLA_INFO_DATA, link->kind);
if (r < 0)
return log_link_debug_errno(link, r, "Could not open IFLA_INFO_DATA container: %m");
if (link->network->ipoib_mode >= 0) {
r = sd_netlink_message_append_u16(m, IFLA_IPOIB_MODE, link->network->ipoib_mode);
if (r < 0)
return log_link_debug_errno(link, r, "Could not append IFLA_IPOIB_MODE attribute: %m");
}
if (link->network->ipoib_umcast >= 0) {
r = sd_netlink_message_append_u16(m, IFLA_IPOIB_UMCAST, link->network->ipoib_umcast);
if (r < 0)
return log_link_debug_errno(link, r, "Could not append IFLA_IPOIB_UMCAST attribute: %m");
}
r = sd_netlink_message_close_container(m);
if (r < 0)
return log_link_debug_errno(link, r, "Failed to close IFLA_INFO_DATA container: %m");
r = sd_netlink_message_close_container(m);
if (r < 0)
return log_link_debug_errno(link, r, "Failed to close IFLA_LINKINFO container: %m");
return 0;
}
static const char * const ipoib_mode_table[_IP_OVER_INFINIBAND_MODE_MAX] = {
[IP_OVER_INFINIBAND_MODE_DATAGRAM] = "datagram",
[IP_OVER_INFINIBAND_MODE_CONNECTED] = "connected",
};
DEFINE_PRIVATE_STRING_TABLE_LOOKUP_FROM_STRING(ipoib_mode, IPoIBMode);
DEFINE_CONFIG_PARSE_ENUM(config_parse_ipoib_mode, ipoib_mode, IPoIBMode, "Failed to parse IPoIB mode");
int config_parse_ipoib_pkey(
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) {
uint16_t u, *pkey = data;
int r;
assert(filename);
assert(lvalue);
assert(rvalue);
assert(data);
if (isempty(rvalue)) {
*pkey = 0; /* 0 means unset. */
return 0;
}
r = safe_atou16(rvalue, &u);
if (r < 0) {
log_syntax(unit, LOG_WARNING, filename, line, r,
"Failed to parse IPoIB pkey '%s', ignoring assignment: %m",
rvalue);
return 0;
}
if (IN_SET(u, 0, 0x8000)) {
log_syntax(unit, LOG_WARNING, filename, line, 0,
"IPoIB pkey cannot be 0 nor 0x8000, ignoring assignment: %s",
rvalue);
return 0;
}
*pkey = u;
return 0;
}
const NetDevVTable ipoib_vtable = {
.object_size = sizeof(IPoIB),
.sections = NETDEV_COMMON_SECTIONS "IPoIB\0",
.init = netdev_ipoib_init,
.fill_message_create = netdev_ipoib_fill_message_create,
.create_type = NETDEV_CREATE_STACKED,
.iftype = ARPHRD_INFINIBAND,
.generate_mac = true,
};
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