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-rw-r--r--ip/iplink_ipoib.c141
1 files changed, 141 insertions, 0 deletions
diff --git a/ip/iplink_ipoib.c b/ip/iplink_ipoib.c
new file mode 100644
index 0000000..7bf4e32
--- /dev/null
+++ b/ip/iplink_ipoib.c
@@ -0,0 +1,141 @@
+/* SPDX-License-Identifier: GPL-2.0-or-later */
+/*
+ * iplink_ipoib.c IPoIB device support
+ *
+ * Authors: Or Gerlitz <ogerlitz@mellanox.com>
+ * copied iflink_vlan.c authored by Patrick McHardy <kaber@trash.net>
+ */
+
+#include <stdio.h>
+#include <stdlib.h>
+#include <string.h>
+#include <linux/if_link.h>
+
+#include "rt_names.h"
+#include "utils.h"
+#include "ip_common.h"
+
+static void print_explain(FILE *f)
+{
+ fprintf(f,
+ "Usage: ... ipoib [ pkey PKEY ]\n"
+ " [ mode {datagram | connected} ]\n"
+ " [ umcast {0|1} ]\n"
+ "\n"
+ "PKEY := 0x8001-0xffff\n"
+ );
+}
+
+static void explain(void)
+{
+ print_explain(stderr);
+}
+
+static int mode_arg(void)
+{
+ fprintf(stderr, "Error: argument of \"mode\" must be \"datagram\"or \"connected\"\n");
+ return -1;
+}
+
+static int ipoib_parse_opt(struct link_util *lu, int argc, char **argv,
+ struct nlmsghdr *n)
+{
+ __u16 pkey, mode, umcast;
+
+ while (argc > 0) {
+ if (matches(*argv, "pkey") == 0) {
+ NEXT_ARG();
+ if (get_u16(&pkey, *argv, 0))
+ invarg("pkey is invalid", *argv);
+ addattr_l(n, 1024, IFLA_IPOIB_PKEY, &pkey, 2);
+ } else if (matches(*argv, "mode") == 0) {
+ NEXT_ARG();
+ if (strcmp(*argv, "datagram") == 0)
+ mode = IPOIB_MODE_DATAGRAM;
+ else if (strcmp(*argv, "connected") == 0)
+ mode = IPOIB_MODE_CONNECTED;
+ else
+ return mode_arg();
+ addattr_l(n, 1024, IFLA_IPOIB_MODE, &mode, 2);
+ } else if (matches(*argv, "umcast") == 0) {
+ NEXT_ARG();
+ if (get_u16(&umcast, *argv, 0))
+ invarg("umcast is invalid", *argv);
+ addattr_l(n, 1024, IFLA_IPOIB_UMCAST, &umcast, 2);
+ } else if (matches(*argv, "help") == 0) {
+ explain();
+ return -1;
+ } else {
+ fprintf(stderr, "ipoib: unknown option \"%s\"?\n", *argv);
+ explain();
+ return -1;
+ }
+ argc--, argv++;
+ }
+
+ return 0;
+}
+
+static void ipoib_print_opt(struct link_util *lu, FILE *f, struct rtattr *tb[])
+{
+ __u16 mode;
+
+ if (!tb)
+ return;
+
+ if (!tb[IFLA_IPOIB_PKEY] ||
+ RTA_PAYLOAD(tb[IFLA_IPOIB_PKEY]) < sizeof(__u16))
+ return;
+
+ __u16 pkey = rta_getattr_u16(tb[IFLA_IPOIB_PKEY]);
+
+ if (is_json_context()) {
+ SPRINT_BUF(b1);
+
+ snprintf(b1, sizeof(b1), "%#.4x", pkey);
+ print_string(PRINT_JSON, "key", NULL, b1);
+ } else {
+ fprintf(f, "pkey %#.4x ", pkey);
+ }
+
+ if (!tb[IFLA_IPOIB_MODE] ||
+ RTA_PAYLOAD(tb[IFLA_IPOIB_MODE]) < sizeof(__u16))
+ return;
+
+ mode = rta_getattr_u16(tb[IFLA_IPOIB_MODE]);
+
+ const char *mode_str =
+ mode == IPOIB_MODE_DATAGRAM ? "datagram" :
+ mode == IPOIB_MODE_CONNECTED ? "connected" : "unknown";
+
+ print_string(PRINT_ANY, "mode", "mode %s ", mode_str);
+
+ if (!tb[IFLA_IPOIB_UMCAST] ||
+ RTA_PAYLOAD(tb[IFLA_IPOIB_UMCAST]) < sizeof(__u16))
+ return;
+
+ __u16 umcast = rta_getattr_u16(tb[IFLA_IPOIB_UMCAST]);
+
+ if (is_json_context()) {
+ SPRINT_BUF(b1);
+
+ snprintf(b1, sizeof(b1), "%.4x", umcast);
+ print_string(PRINT_JSON, "umcast", NULL, b1);
+ } else {
+ fprintf(f, "umcast %.4x ", umcast);
+ }
+}
+
+static void ipoib_print_help(struct link_util *lu, int argc, char **argv,
+ FILE *f)
+{
+ print_explain(f);
+}
+
+struct link_util ipoib_link_util = {
+ .id = "ipoib",
+ .maxattr = IFLA_IPOIB_MAX,
+ .parse_opt = ipoib_parse_opt,
+ .print_opt = ipoib_print_opt,
+ .print_help = ipoib_print_help,
+};