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-rw-r--r--src/network/netdev/ipoib.c161
1 files changed, 161 insertions, 0 deletions
diff --git a/src/network/netdev/ipoib.c b/src/network/netdev/ipoib.c
new file mode 100644
index 0000000..5dd9286
--- /dev/null
+++ b/src/network/netdev/ipoib.c
@@ -0,0 +1,161 @@
+/* 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 r;
+ }
+
+ if (ipoib->mode >= 0) {
+ r = sd_netlink_message_append_u16(m, IFLA_IPOIB_MODE, ipoib->mode);
+ if (r < 0)
+ return r;
+ }
+
+ if (ipoib->umcast >= 0) {
+ r = sd_netlink_message_append_u16(m, IFLA_IPOIB_UMCAST, ipoib->umcast);
+ if (r < 0)
+ return r;
+ }
+
+ 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 r;
+
+ r = sd_netlink_message_open_container(m, IFLA_LINKINFO);
+ if (r < 0)
+ return r;
+
+ r = sd_netlink_message_open_container_union(m, IFLA_INFO_DATA, link->kind);
+ if (r < 0)
+ return r;
+
+ if (link->network->ipoib_mode >= 0) {
+ r = sd_netlink_message_append_u16(m, IFLA_IPOIB_MODE, link->network->ipoib_mode);
+ if (r < 0)
+ return r;
+ }
+
+ if (link->network->ipoib_umcast >= 0) {
+ r = sd_netlink_message_append_u16(m, IFLA_IPOIB_UMCAST, link->network->ipoib_umcast);
+ if (r < 0)
+ return r;
+ }
+
+ r = sd_netlink_message_close_container(m);
+ if (r < 0)
+ return r;
+
+ r = sd_netlink_message_close_container(m);
+ if (r < 0)
+ return r;
+
+ 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 = ASSERT_PTR(data);
+ int r;
+
+ assert(filename);
+ assert(lvalue);
+ assert(rvalue);
+
+ 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,
+};