| /* |
| * iplink_ipoib.c IPoIB device support |
| * |
| * This program is free software; you can redistribute it and/or |
| * modify it under the terms of the GNU General Public License |
| * as published by the Free Software Foundation; either version |
| * 2 of the License, or (at your option) any later version. |
| * |
| * 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] [mode {datagram | connected}]" |
| "[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; |
| |
| fprintf(f, "pkey %#.4x ", rta_getattr_u16(tb[IFLA_IPOIB_PKEY])); |
| |
| if (!tb[IFLA_IPOIB_MODE] || |
| RTA_PAYLOAD(tb[IFLA_IPOIB_MODE]) < sizeof(__u16)) |
| return; |
| |
| mode = rta_getattr_u16(tb[IFLA_IPOIB_MODE]); |
| fprintf(f, "mode %s ", |
| mode == IPOIB_MODE_DATAGRAM ? "datagram" : |
| mode == IPOIB_MODE_CONNECTED ? "connected" : |
| "unknown"); |
| |
| if (!tb[IFLA_IPOIB_UMCAST] || |
| RTA_PAYLOAD(tb[IFLA_IPOIB_UMCAST]) < sizeof(__u16)) |
| return; |
| |
| fprintf(f, "umcast %.4x ", rta_getattr_u16(tb[IFLA_IPOIB_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, |
| }; |