From a0e0018c9a7ef5ce7f6d2c3ae16aecbbd16a8f67 Mon Sep 17 00:00:00 2001 From: Daniel Baumann Date: Sat, 4 May 2024 16:18:53 +0200 Subject: Adding upstream version 6.1.0. Signed-off-by: Daniel Baumann --- ip/iplink_ipoib.c | 145 ++++++++++++++++++++++++++++++++++++++++++++++++++++++ 1 file changed, 145 insertions(+) create mode 100644 ip/iplink_ipoib.c (limited to 'ip/iplink_ipoib.c') diff --git a/ip/iplink_ipoib.c b/ip/iplink_ipoib.c new file mode 100644 index 0000000..b730c53 --- /dev/null +++ b/ip/iplink_ipoib.c @@ -0,0 +1,145 @@ +/* + * 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 + * copied iflink_vlan.c authored by Patrick McHardy + */ + +#include +#include +#include +#include + +#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, +}; -- cgit v1.2.3