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de038993 OG |
1 | /* |
2 | * iplink_ipoib.c IPoIB device support | |
3 | * | |
4 | * This program is free software; you can redistribute it and/or | |
5 | * modify it under the terms of the GNU General Public License | |
6 | * as published by the Free Software Foundation; either version | |
7 | * 2 of the License, or (at your option) any later version. | |
8 | * | |
9 | * Authors: Or Gerlitz <ogerlitz@mellanox.com> | |
10 | * copied iflink_vlan.c authored by Patrick McHardy <kaber@trash.net> | |
11 | */ | |
12 | ||
13 | #include <stdio.h> | |
14 | #include <stdlib.h> | |
15 | #include <string.h> | |
16 | #include <linux/if_link.h> | |
17 | ||
18 | #include "rt_names.h" | |
19 | #include "utils.h" | |
20 | #include "ip_common.h" | |
21 | ||
561e650e | 22 | static void print_explain(FILE *f) |
de038993 | 23 | { |
561e650e | 24 | fprintf(f, |
8b471354 PS |
25 | "Usage: ... ipoib [ pkey PKEY ]\n" |
26 | " [ mode {datagram | connected} ]\n" | |
27 | " [ umcast {0|1} ]\n" | |
de038993 OG |
28 | "\n" |
29 | "PKEY := 0x8001-0xffff\n" | |
30 | ); | |
31 | } | |
32 | ||
561e650e | 33 | static void explain(void) |
34 | { | |
35 | print_explain(stderr); | |
36 | } | |
de038993 OG |
37 | |
38 | static int mode_arg(void) | |
39 | { | |
56f5daac | 40 | fprintf(stderr, "Error: argument of \"mode\" must be \"datagram\"or \"connected\"\n"); |
de038993 OG |
41 | return -1; |
42 | } | |
43 | ||
44 | static int ipoib_parse_opt(struct link_util *lu, int argc, char **argv, | |
45 | struct nlmsghdr *n) | |
46 | { | |
47 | __u16 pkey, mode, umcast; | |
48 | ||
49 | while (argc > 0) { | |
50 | if (matches(*argv, "pkey") == 0) { | |
51 | NEXT_ARG(); | |
52 | if (get_u16(&pkey, *argv, 0)) | |
53 | invarg("pkey is invalid", *argv); | |
54 | addattr_l(n, 1024, IFLA_IPOIB_PKEY, &pkey, 2); | |
55 | } else if (matches(*argv, "mode") == 0) { | |
56 | NEXT_ARG(); | |
57 | if (strcmp(*argv, "datagram") == 0) | |
58 | mode = IPOIB_MODE_DATAGRAM; | |
59 | else if (strcmp(*argv, "connected") == 0) | |
60 | mode = IPOIB_MODE_CONNECTED; | |
61 | else | |
62 | return mode_arg(); | |
63 | addattr_l(n, 1024, IFLA_IPOIB_MODE, &mode, 2); | |
64 | } else if (matches(*argv, "umcast") == 0) { | |
65 | NEXT_ARG(); | |
66 | if (get_u16(&umcast, *argv, 0)) | |
67 | invarg("umcast is invalid", *argv); | |
68 | addattr_l(n, 1024, IFLA_IPOIB_UMCAST, &umcast, 2); | |
69 | } else if (matches(*argv, "help") == 0) { | |
70 | explain(); | |
71 | return -1; | |
72 | } else { | |
14645ec2 | 73 | fprintf(stderr, "ipoib: unknown option \"%s\"?\n", *argv); |
de038993 OG |
74 | explain(); |
75 | return -1; | |
76 | } | |
77 | argc--, argv++; | |
78 | } | |
79 | ||
80 | return 0; | |
81 | } | |
82 | ||
83 | static void ipoib_print_opt(struct link_util *lu, FILE *f, struct rtattr *tb[]) | |
84 | { | |
85 | __u16 mode; | |
86 | ||
87 | if (!tb) | |
88 | return; | |
89 | ||
90 | if (!tb[IFLA_IPOIB_PKEY] || | |
91 | RTA_PAYLOAD(tb[IFLA_IPOIB_PKEY]) < sizeof(__u16)) | |
92 | return; | |
93 | ||
3bec1cf8 JF |
94 | __u16 pkey = rta_getattr_u16(tb[IFLA_IPOIB_PKEY]); |
95 | ||
96 | if (is_json_context()) { | |
97 | SPRINT_BUF(b1); | |
98 | ||
99 | snprintf(b1, sizeof(b1), "%#.4x", pkey); | |
100 | print_string(PRINT_JSON, "key", NULL, b1); | |
101 | } else { | |
102 | fprintf(f, "pkey %#.4x ", pkey); | |
103 | } | |
de038993 OG |
104 | |
105 | if (!tb[IFLA_IPOIB_MODE] || | |
106 | RTA_PAYLOAD(tb[IFLA_IPOIB_MODE]) < sizeof(__u16)) | |
107 | return; | |
108 | ||
109 | mode = rta_getattr_u16(tb[IFLA_IPOIB_MODE]); | |
3bec1cf8 JF |
110 | |
111 | const char *mode_str = | |
de038993 | 112 | mode == IPOIB_MODE_DATAGRAM ? "datagram" : |
3bec1cf8 JF |
113 | mode == IPOIB_MODE_CONNECTED ? "connected" : "unknown"; |
114 | ||
115 | print_string(PRINT_ANY, "mode", "mode %s ", mode_str); | |
de038993 OG |
116 | |
117 | if (!tb[IFLA_IPOIB_UMCAST] || | |
118 | RTA_PAYLOAD(tb[IFLA_IPOIB_UMCAST]) < sizeof(__u16)) | |
119 | return; | |
120 | ||
3bec1cf8 JF |
121 | __u16 umcast = rta_getattr_u16(tb[IFLA_IPOIB_UMCAST]); |
122 | ||
123 | if (is_json_context()) { | |
124 | SPRINT_BUF(b1); | |
125 | ||
126 | snprintf(b1, sizeof(b1), "%.4x", umcast); | |
127 | print_string(PRINT_JSON, "umcast", NULL, b1); | |
128 | } else { | |
129 | fprintf(f, "umcast %.4x ", umcast); | |
130 | } | |
de038993 OG |
131 | } |
132 | ||
561e650e | 133 | static void ipoib_print_help(struct link_util *lu, int argc, char **argv, |
134 | FILE *f) | |
135 | { | |
136 | print_explain(f); | |
137 | } | |
138 | ||
de038993 OG |
139 | struct link_util ipoib_link_util = { |
140 | .id = "ipoib", | |
141 | .maxattr = IFLA_IPOIB_MAX, | |
142 | .parse_opt = ipoib_parse_opt, | |
143 | .print_opt = ipoib_print_opt, | |
561e650e | 144 | .print_help = ipoib_print_help, |
de038993 | 145 | }; |